System and method providing concurrent multimode communication

CROSS-REFERENCE TO RELATED APPLICATIONS/INCORPORATION BY REFERENCE

0001This patent application is related to and claims priority from provisional patent application Ser. No. 60/752,559 filed Dec. 21, 2005, and titled “SYSTEM AND METHOD PROVIDING CONCURRENT MULTIMODE COMMUNICATION,” the contents of which are hereby incorporated herein by reference in their entirety. Also, U.S. patent application Ser. No. 11/298,371, filed Dec. 7, 2005, entitled “MULTIMODE COMMUNICATION DEVICE WITH SHARED SIGNAL PATH PROGRAMMABLE FILTER,” with attorney docket number 16887US02 is hereby incorporated herein by reference in its entirety.

FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

0002[Not Applicable]

SEQUENCE LISTING

0003[Not Applicable]

MICROFICHE/COPYRIGHT REFERENCE

0004[Not Applicable]

BACKGROUND OF THE INVENTION

0005Communication devices (e.g., mobile communication devices) are continually increasing in popularity. Such communication devices include, for example and without limitation, cellular phones, paging devices, portable email devices, and personal digital assistants. Mobile communication devices, for example, provide the user with the capability to conduct communications while moving through a variety of environments.

0006Communication devices may operate in accordance with multiple communication modes. For example a mobile wireless communication device may be adapted to operate in a cellular communication mode and a wireless computer network communication mode. Such multimode communication devices may utilize respective radio configurations for each communication mode. For example, various communication modes may correspond to different respective radios and/or different communication protocols.

0007Various communication modes may potentially operate in common frequency bands. Thus, the potential exists for transmissions (e.g., simultaneous transmissions) in various communication modes to interfere with each other. Further limitations and disadvantages of conventional and traditional approaches will become apparent to one of skill in the art, through comparison of such systems with the present invention as set forth in the remainder of the present application with reference to the drawings.

BRIEF SUMMARY OF THE INVENTION

0008Various aspects of the present invention provide a system and method providing concurrent multimode communication through multimode signal multiplexing, substantially as shown in and/or described in connection with at least one of the figures, as set forth more completely in the claims. These and other advantages, aspects and novel features of the present invention, as well as details of illustrative aspects thereof, will be more fully understood from the following description and drawings.

BRIEF DESCRIPTION OF SEVERAL VIEWS OF THE DRAWINGS

0009<figref idref="DRAWINGS">FIG. 1</figref> is a diagram showing a first non-limiting exemplary method for providing concurrent multimode communication, in accordance with various aspects of the present invention.

0010<figref idref="DRAWINGS">FIG. 2</figref> is a diagram illustrating a first non-limiting exemplary multiplexed signal sequence, in accordance with various aspects of the present invention.

0011<figref idref="DRAWINGS">FIG. 3</figref> is a diagram showing a second non-limiting exemplary method for providing concurrent multimode communication, in accordance with various aspects of the present invention.

0012<figref idref="DRAWINGS">FIG. 4</figref> is a diagram illustrating a second non-limiting exemplary multiplexed signal sequence, in accordance with various aspects of the present invention.

0013<figref idref="DRAWINGS">FIG. 5</figref> is a diagram showing a third non-limiting exemplary method for providing concurrent multimode communication, in accordance with various aspects of the present invention.

0014<figref idref="DRAWINGS">FIG. 6</figref> is a diagram showing a fourth non-limiting exemplary method for providing concurrent multimode communication, in accordance with various aspects of the present invention.

0015<figref idref="DRAWINGS">FIG. 7</figref> is a diagram showing a portion of a first exemplary multimode communication system, in accordance with various aspects of the present invention.

0016<figref idref="DRAWINGS">FIG. 8</figref> is a diagram showing a portion of a second exemplary multimode communication system, in accordance with various aspects of the present invention.

0017<figref idref="DRAWINGS">FIG. 9</figref> is a diagram showing a portion of a third exemplary multimode communication system, in accordance with various aspects of the present invention.

0018<figref idref="DRAWINGS">FIG. 10</figref> is a diagram showing a portion of a fourth exemplary multimode communication system, in accordance with various aspects of the present invention.

0019<figref idref="DRAWINGS">FIG. 11</figref> is a diagram showing a portion of a fifth exemplary multimode communication system, in accordance with various aspects of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

0020<figref idref="DRAWINGS">FIG. 1</figref> is a diagram showing a first non-limiting exemplary method <b>100</b> for providing concurrent multimode communication, in accordance with various aspects of the present invention. A communication system (or device) implementing the method <b>100</b> may comprise characteristics of any of a variety of communication systems/devices (e.g., multimode wireless communication devices). For example and without limitation, the communication system may comprise characteristics of any of a variety of mobile wireless communication devices (e.g., cellular phones, paging devices, portable email devices, etc.). Also for example, the communication system may comprise characteristics of fixed communication systems or devices (e.g., network access points, base stations, satellites, wireless routers, set top boxes, etc.). Further for example, the communication system may comprise characteristics of a variety of electronic devices with wireless communication capability (e.g., televisions, music players, cameras, remote controls, personal digital assistants, handheld computers, gaming devices, etc.). Accordingly, the scope of various aspects of the present invention should not be limited by characteristics of particular communication systems or devices.

0021The following discussion will, at times, refer to various communication modes. A multimode communication device may, for example, be adapted to communicate in a plurality of such communication modes. For the following discussion, a communication mode may generally be considered to coincide with communication utilizing a particular communication protocol or standard. A non-limiting list of exemplary communication protocols includes various cellular communication protocols (e.g., GSM, GPRS, EDGE, CDMA, WCDMA, TDMA, PDC, etc.), various wireless networking protocols or standards, including WLAN, WMAN, WPAN and WWAN (e.g., IEEE 802.11, Bluetooth, IEEE 802.15, UWB, IEEE 802.16, IEEE 802.20, Zigbee, any WiFi protocol, etc.), various television communication standards, etc. The scope of various aspects of the present invention should not be limited by characteristics of particular communication modes or protocols, whether standard or proprietary.

0022The exemplary method <b>100</b> may begin executing at step <b>105</b>. The exemplary method <b>100</b> (and all methods discussed herein) may begin executing for any of a variety of reasons. For example and without limitation, the exemplary method <b>100</b> may begin executing in response to a user input, a power-up condition or a reset condition. Also for example, the exemplary method <b>100</b> may begin executing in response to a detected event (e.g., a timer expiration, detected signal, detected network access point, system command, etc.). Further for example, the exemplary method <b>100</b> may begin executing in response to a determination to communicate in a plurality of communication modes concurrently. Still further for example, the exemplary method <b>100</b> may begin executing in response to a determination to utilize bandwidth in a plurality of communication systems for a single communication or multiple communications. Accordingly, the scope of various aspects of the present invention should not be limited by characteristics of any particular initiating cause or condition.

0023The exemplary method <b>100</b> may, at step <b>110</b>, comprise (e.g., during a first time period) transmitting a first portion of a first communication in a first communication mode (e.g., in a serial wireless transmission stream). The first communication may comprise characteristics of any of a variety of types of communications. For example and without limitation, the first communication may comprise characteristics of a voice communication, video communication, pictorial communication, textual communication, unicast communication, multicast communication, broadcast communication, one-way communication, two-way communication, etc.

0024Step <b>110</b> may comprise transmitting the first portion of the first communication in the first communication mode in any of a variety of manners. For example and without limitation, step <b>110</b> may comprise communicating the first communication through any of a variety of communication media (e.g., the RF wireless medium or optical medium). Step <b>110</b> may, for example, comprise utilizing radio circuitry dedicated to communicating in the first communication mode and/or radio circuitry shared between a plurality of communication modes.

0025Referring briefly to <figref idref="DRAWINGS">FIG. 2</figref>, the time period T₁may correspond to communication of the first portion of the first communication in the first communication mode.

0026The exemplary method <b>100</b> may, at step <b>120</b>, comprise, during a second time period after the first time period, transmitting a first portion of a second communication in a second communication mode (e.g., different from the first communication mode). For example, step <b>120</b> may comprise stopping transmission of the first communication prior to transmitting the first portion of the second communication (e.g., in the same serial wireless transmission stream as step <b>110</b>). As with the first communication, the second communication may comprise characteristics of any of a variety of types of communications. The second communication may, for example, be independent of the first communication. Alternatively for example, the second communication may correspond to a second portion of an aggregate communication, and the first communication may correspond to a first portion of the aggregate communication.

0027As with step <b>110</b>, step <b>120</b> may comprise transmitting the first portion of the second communication in the second communication mode in any of a variety of manners. For example and without limitation, step <b>120</b> may comprise communicating the first communication through any of a variety of communication media (e.g., the RF wireless medium or non-tethered optical medium). Step <b>120</b> may, for example, comprise utilizing radio circuitry dedicated to communicating in the second communication mode and/or radio circuitry shared between a plurality of communication modes (e.g., shared between the first and second communication modes). As a non-limiting example, step <b>110</b> may comprise transmitting in the first communication mode utilizing a first set of radio components, and step <b>120</b> may comprise transmitting in the second communication mode utilizing a second set of radio components, at least a portion of which is identical to the first set of radio components.

0028Referring briefly to <figref idref="DRAWINGS">FIG. 2</figref>, the time period T₂may correspond to communication of the first portion of the second communication in the second communication mode. Though the first time period T₁and the second time period T₂are illustrated being temporally adjacent, such a temporally adjacent relationship is not necessary. For example, there may be a time gap between T₁and T₂.

0029The exemplary method <b>100</b> may, at step <b>130</b>, comprise, during a third time period after the second time period, transmitting a second portion of the first communication in the first communication mode (e.g., in the same serial wireless transmission stream as steps <b>110</b> and <b>120</b>). For example, step <b>130</b> may comprise stopping transmission of the second communication prior to transmitting the second portion of the first communication. Step <b>130</b> may comprise transmitting the second portion of the first communication in the first communication mode in any of a variety of manners. For example and without limitation, step <b>130</b> may comprise communicating the first communication through any of a variety of communication media (e.g., the RF wireless medium or non-tethered optical medium). Step <b>130</b> may, for example, comprise utilizing radio circuitry dedicated to communicating in the first communication mode and/or radio circuitry shared between a plurality of communication modes (e.g., shared between the first and second communication modes).

0030Referring briefly to <figref idref="DRAWINGS">FIG. 2</figref>, the time period T₃may correspond to communication of the second portion of the first communication in the first communication mode. Though the second time period T₂and the third time period T₃are illustrated being temporally adjacent, such a temporally adjacent relationship is not necessary.

0031In a non-limiting exemplary scenario, the exemplary method <b>100</b> may comprise executing steps <b>110</b>-<b>130</b> in a manner that simultaneously satisfies communication requirements (e.g., timing and/or information constraints) associated with the first and second communication protocols. For example, an entity communicating with a communication device implementing the method <b>100</b> might receive no indication that the communication device is conducting a plurality of communications in a plurality of communication modes concurrently.

0032The exemplary method <b>100</b> may, at step <b>195</b>, comprise performing any of a variety of continued processing. Such continued processing may, for example and without limitation, comprise performing additional communication (e.g., in the first or second communication modes or an N^thcommunication mode). Referring briefly to <figref idref="DRAWINGS">FIG. 2</figref>, the time period T₄may correspond to communication of a second portion of the second communication in the second communication mode.

0033Step <b>195</b> may also, for example, comprise performing any of a variety of communication-related activities (e.g., activities associated with user interface, secure communication, power management, media access scheduling, responding to real-time communication conditions, radio configuration and/or calibration, etc.). Step <b>195</b> may share any or all characteristics with any similarly labeled step of any of the exemplary methods discussed herein.

0034<figref idref="DRAWINGS">FIG. 3</figref> is a diagram showing a second non-limiting exemplary method <b>300</b> for providing concurrent multimode communication, in accordance with various aspects of the present invention. The exemplary method <b>300</b> may, for example and without limitation, share any or all characteristics with the exemplary method <b>100</b> illustrated in <figref idref="DRAWINGS">FIG. 1</figref> and discussed previously.

0035As mentioned previously with regard to <figref idref="DRAWINGS">FIG. 1</figref>, communication may be performed in a plurality of communication modes utilizing a shared radio or various shared radio components. The exemplary method <b>300</b> is presented to illustrate various non-limiting steps associated with communicating utilizing such a shared radio or shared radio components. As a non-limiting example of such programmable (or configurable) radio circuitry, refer to U.S. patent application Ser. No. __/___,___, filed Dec. 7, 2005, entitled “MULTIMODE COMMUNICATION DEVICE WITH SHARED SIGNAL PATH PROGRAMMABLE FILTER,” with attorney docket number 16887US02, which is hereby incorporated herein by reference in its entirety.

0036The exemplary method <b>300</b> may, at step <b>306</b>, comprise preparing a radio of the communication system for communicating in the first communication mode. For example, step <b>306</b> may comprise configuring a programmable radio to transmit in the first communication mode. For example, step <b>306</b> may comprise directing a programmable radio to change configuration to a configuration corresponding to communication in the first communication mode.

0037Step <b>306</b> may also, for example, comprise preparing a radio of the communication system by, at least in part, waking sleeping components of the communication system that are associated with communicating in the first communication mode. Step <b>306</b> may additionally, for example, comprise placing one or more components of the communication system (e.g., components associated with a previous communication mode different from the first communication mode) in a sleep state.

0038The exemplary method <b>300</b> may, at step <b>308</b>, comprise waiting a transient time period (e.g., after programming the programmable radio or directing the programmable radio to change configuration). Such waiting may, for example, ensure that various switching and other devices (e.g., filters, frequency generators, codecs, etc.) have stabilized or converged to the desired state before utilizing the radio.

0039The exemplary method <b>300</b> may, at step <b>310</b>, comprise (e.g., during a first time period) transmitting a first portion of a first communication in the first communication mode (e.g., in a serial wireless transmission stream). Steps <b>306</b>-<b>310</b> may, for example and without limitation, share any or all characteristics with step <b>110</b> of the exemplary method <b>100</b> illustrated in <figref idref="DRAWINGS">FIG. 1</figref> and discussed previously.

0040Referring briefly to <figref idref="DRAWINGS">FIG. 4</figref>, the time period T₁may correspond to communication of the first portion of the first communication in the first communication mode.

0041The exemplary method <b>300</b> may, at step <b>316</b>, comprise preparing a radio of the communication system for communicating in the second communication mode. The radio may, for example, comprise the same radio (or a portion thereof) prepared at step <b>306</b> and utilized at step <b>310</b>. For example, step <b>316</b> may comprise configuring a programmable radio to transmit in the second communication mode. For example, step <b>316</b> may comprise directing a programmable radio to change configuration to a configuration corresponding to communication in the second communication mode.

0042Step <b>316</b> may also, for example, comprise preparing a radio of the communication system by, at least in part, waking sleeping components of the communication system that are associated with communicating in the second communication mode. Step <b>316</b> may additionally, for example, comprise placing one or more components of the communication system (e.g., various components associated with the first communication mode and not the second communication mode) in a sleep state.

0043The exemplary method <b>300</b> may, at step <b>318</b>, comprise waiting a transient time period (e.g., after programming the programmable radio or directing the programmable radio to change configuration). Such waiting may, for example, ensure that various switching and other devices (e.g., filters, frequency generators, codecs, etc.) have stabilized or converged to the desired state before utilizing the radio. The transient time period may, for example, be the same transient time period associated with step <b>308</b> or may be different (e.g., depending on settling or convergence characteristics of programmable or configurable circuitry).

0044Referring briefly to <figref idref="DRAWINGS">FIG. 4</figref>, the transient time period T_t1may correspond to waiting a transient period prior to communicating in the second communication mode. Though the first time period T₁and the transient time period T_t1are illustrated being temporally adjacent, such a temporally adjacent relationship is not necessary.

0045The exemplary method <b>300</b> may, at step <b>320</b>, comprise (e.g., during a second time period) transmitting a first portion of a second communication in the second communication mode (e.g., in the same serial wireless transmission stream as step <b>310</b>). Steps <b>316</b>-<b>320</b> may, for example and without limitation, share any or all characteristics with step <b>120</b> of the exemplary method <b>100</b> illustrated in <figref idref="DRAWINGS">FIG. 1</figref> and discussed previously. For example, in a non-limiting exemplary scenario, step <b>310</b> may comprise transmitting in the first communication mode utilizing a first set of radio components, and step <b>320</b> may comprise transmitting in the second communication mode utilizing a second set of radio components, at least a portion of which is different from the first set of radio components.

0046Referring briefly to <figref idref="DRAWINGS">FIG. 4</figref>, the time period T₂may correspond to communication of the first portion of the second communication in the second communication mode. Though the transient time period T_t1and the second time period T₂are illustrated being temporally adjacent, such a temporally adjacent relationship is not necessary.

0047The exemplary method <b>300</b> may, at step <b>326</b>, comprise preparing a radio of the communication system for communicating in the first communication mode. The exemplary method <b>300</b> may, at step <b>328</b>, comprise waiting a transient time period (e.g., after programming the programmable radio or directing the programmable radio to change configuration). The exemplary method <b>300</b> may, at step <b>330</b>, comprise (e.g., during a third time period) transmitting a second portion of the first communication in the first communication mode (e.g., in the same serial wireless transmission stream as steps <b>310</b> and <b>320</b>). Steps <b>326</b>-<b>330</b> may, for example and without limitation, share any or all characteristics with step <b>130</b> of the exemplary method <b>100</b> illustrated in <figref idref="DRAWINGS">FIG. 1</figref> and discussed previously and/or with steps <b>306</b>-<b>310</b>.

0048Referring briefly to <figref idref="DRAWINGS">FIG. 4</figref>, the transient time period T_t2may correspond to waiting a transient period prior to resuming communicating in the first communication mode. Also, the time period T₃may correspond to communication of the second portion of the first communication in the first communication mode. Though the transient time period T_t2and the time period T₃are illustrated being temporally adjacent, such a temporally adjacent relationship is not necessary.

0049<figref idref="DRAWINGS">FIG. 5</figref> is a diagram showing a third non-limiting exemplary method <b>500</b> for providing concurrent multimode communication, in accordance with various aspects of the present invention. The exemplary method <b>500</b> may share any or all characteristics with the exemplary methods <b>100</b> and <b>300</b> illustrated in <figref idref="DRAWINGS">FIGS. 1 and 3</figref> and discussed previously.

0050The exemplary method <b>500</b> may, at step <b>510</b>, comprise (e.g., during a first time period) transmitting a first portion of a first communication in a first communication mode (e.g., in a serial wireless transmission stream). Step <b>510</b> may, for example, share any or all characteristics with steps <b>110</b> and <b>306</b>-<b>310</b> discussed previously.

0051The exemplary method <b>500</b> may, at step <b>517</b>, comprise determining to communicate a second communication in a second communication mode. Step <b>517</b> may, for example, comprise determining to communicate the second communication concurrently with the first communication (e.g., in the same serial wireless transmission stream as the first communication). Such concurrent communication may, for example and without limitation, comprise simultaneously meeting communication requirements (e.g., timing and/or informational requirements) of the first and second communication modes. Step <b>517</b> may comprise making such determination(s) in response to any of a variety of events or conditions, non-limiting examples of which will now be presented.

0052In a non-limiting exemplary scenario, step <b>517</b> may comprise detecting a user interface event and determining to transmit at least a first portion of a second communication in the second communication mode in response to the detected user interface event. For example, such user interface events may comprise a user expressing a desire to perform the second communication (e.g., concurrently with the first communication).

0053In another exemplary scenario, step <b>517</b> may comprise receiving a signal from a communication network (e.g., an access point thereof) associated with the second communication mode and determining to transmit at least a first portion of a second communication in the second communication mode in response to the received signal. The signal may, for example, comprise a polling message directed to the communication system implementing the method <b>500</b>. Also for example, the signal may comprise a beacon message or a response to a beacon message.

0054In another exemplary scenario, step <b>517</b> may comprise detecting expiration of a timer and determining to transmit at least a first portion of a second communication in response to the detected timer expiration. The timer may be associated with any of a variety of communication-related activities. For example, the timer may be associated with any of a variety of timeout events associated with carrier sensing. Also for example, the timer may be associated with a predetermined transmission schedule. Further for example, the timer may be associated with waiting a transient time before transmitting. Still further for example, the timer may be associated with expiration of a maximum time to wait for an event to occur.

0055In a further exemplary scenario, step <b>517</b> may comprise detecting availability of a communication network associated with the second communication mode and determining to communicate at least a first portion of a second communication based on the network detection. Step <b>517</b> may comprise detecting availability of the network in any of a variety of manners, including without limitation, detecting a beacon signal, detecting a response to a signal, detecting a particular type of signal associated with the network, determining geographical location that is associated with the network, receiving a user input, etc.

0056In another exemplary scenario, step <b>517</b> may comprise detecting that a carrier associated with communicating in the second communication mode is available and determining to communicate at least a first portion of a second communication based on the carrier detection. Step <b>517</b> may comprise determining that the carrier is available in any of a variety of manners. For example, step <b>517</b> may comprise determining that it is time for a pre-allocated timeslot (or other type of channel) to be available. Also for example, step <b>517</b> may comprise performing contention-based carrier detection (e.g., CSMA, CSMA/CD, CSMA/CA, etc.).

0057In still another exemplary scenario, step <b>517</b> may comprise determining noise conditions associated with one or more communication modes and determining to communicate at least a first portion of a second communication based on the noise determination. As a non-limiting example, step <b>517</b> may comprise determining that the present noise environment favors communicating in the second communication mode over communicating in the first communication mode and determining to communicate at least a first portion of a second communication in the second communication mode based on such determination. For example, a first communication mode may utilize direct sequence spread spectrum, and a second communication mode may utilize frequency hopped spread spectrum, resulting in the first and second communication modes responding differently to different types and/or amounts of noise. Also for example, a first communication mode may utilize a particular transmission power, and a second communication mode may utilize another particular transmission power, resulting in the first and second communication modes being able to overcome particular amounts of noise differently.

0058In yet another exemplary scenario, step <b>517</b> may comprise determining one or more power consumption parameters (e.g., levels of power consumption associated with particular communication modes and/or levels of power available from a power source) and determining to communicate at least a first portion of a second communication based on the power consumption and/or supply determination. In a non-limiting example, step <b>517</b> may comprise favoring transmission in the second communication mode over transmission in the first communication mode due to power consumption/supply characteristics.

0059In a further exemplary scenario, step <b>517</b> may comprise determining quality-of-service (QoS) characteristics associated with communication in the first and/or second communication mode and determining to communicate at least a first portion of a second communication in the second communication mode based on the QoS characteristic determination. For example and without limitation, step <b>517</b> may comprise determining that respective QoS requirements associated with the first and/or second communication modes are or are not being presently met. In such an example, step <b>517</b> may comprise determining to communicate at least a first portion of a second communication in the second communication mode to meet QoS requirements.

0060In another exemplary scenario, step <b>517</b> may comprise determining data rate characteristics associated with the first and/or second communications and with the first and/or second communication modes and determining to communicate at least a first portion of a second communication in the second communication mode based on the determined data rate characteristics. As a non-limiting example, step <b>517</b> may comprise determining that for an overall data rate goal to be met regarding the second communication, at least a first portion of the second communication should presently be communicated in the second communication mode. Also, for example, step <b>517</b> may comprise determining that since data rate goals are presently being exceeded for the first communication, temporarily switching away from the first communication to the second communication is appropriate.

0061In still another exemplary scenario, step <b>517</b> may comprise determining security characteristics associated with the first and/or second communications (e.g., respective security goals) or security characteristics associated with the first and/or second communication modes (e.g., respective security capabilities) and determining to communicate at least a first portion of a second communication based on the determined security characteristics. In a non-limiting example, step <b>517</b> may comprise determining that the security needs associated with the second communication (or a portion thereof) would be met by the second communication mode, and therefore determining to communicate at least a first portion of the second communication in the second communication mode.

0062In yet another exemplary scenario, step <b>517</b> may comprise determining communication range characteristics associated with the first and/or second communications (e.g., range needs) or with the first and/or second communication modes (e.g., respective range capabilities) and determining to communicate at least a first portion of the second communication in the second communication mode based on the range characteristics determination. As a non-limiting example, step <b>517</b> may comprise determining that the second communication range requirements would be satisfied by communicating in the second communication mode, and therefore determining to communicate at least a first portion of the second communication in the second communication mode. As another non-limiting example, step <b>517</b> may comprise determining that either of the first and second communication modes would satisfy the range requirements for the second communication but that, for some other reason, the second communication mode would be the most appropriate.

0063In an additional exemplary scenario, step <b>517</b> may comprise determining respective priorities associated with the first and/or second communications and determining to communicate at least a first portion of the second communication in the second communication mode based on the priority determination. In a non-limiting example, step <b>517</b> may comprise determining that the second communication is higher priority than the first communication, and therefore determining to presently communicate at least a first portion of the second communication in the second communication mode. Note that, as with all determination factors discussed above and below, priority may be combined with any one or more of the other factors when making the determination to communicate the second communication in the second communication mode.

0064In another exemplary scenario, step <b>517</b> may comprise determining monetary cost characteristics associated with the first and/or second communications or first and/or second communication modes and determining to communicate at least a first portion of the second communication in the second communication mode based on the cost determination. As a non-limiting example, step <b>517</b> may comprise determining that either of the first and second communication modes will effectively communicate the second communication but that the second communication mode is more monetarily cost effective than the first communication mode, and therefore determining to communicate at least a first portion of the second communication in the second communication mode.

0065As mentioned previously, any of the exemplary determination considerations discussed above may be combined for determining whether to presently communicate at least a first portion of the second communication in the second communication mode. As a non-limiting example, QoS, power availability and cost concerns may all be determined and considered when determining whether to communicate at least a first portion of the second communication in the second communication mode.

0066In general, step <b>517</b> may comprise determining to communicate a second communication in a second communication mode (e.g., in response to a real-time detected communication condition). Accordingly, the scope of various aspects of the present invention should not be limited by characteristics of any particular manner of making such determination.

0067The exemplary method <b>500</b> may, at step <b>520</b>, comprise transmitting a first portion of the second communication in the second communication mode (e.g., in the same serial wireless transmission stream as step <b>510</b>). Step <b>520</b> may comprise transmitting the first portion of the second communication in any of a variety of manners. Step <b>520</b> may, for example and without limitation, share any or all characteristics with steps <b>120</b> and <b>320</b> discussed previously.

0068The exemplary method <b>500</b> may, at step <b>527</b>, comprise determining to communicate the first communication (e.g., a second portion of the first communication, a first portion of which was transmitted at step <b>510</b>) in the first communication mode. Step <b>527</b> may, for example and without limitation, share any or all characteristics with step <b>517</b> discussed previously (albeit with regard to the first communication rather than the second communication).

0069The exemplary method <b>500</b> may, at step <b>530</b>, comprise transmitting a second portion of the first communication in the first communication mode (e.g., in the same serial wireless transmission stream as steps <b>510</b> and <b>520</b>). Step <b>530</b> may comprise transmitting the second portion of the first communication in any of a variety of manners. Step <b>530</b> may, for example and without limitation, share any or all characteristics with steps <b>130</b> and <b>330</b> discussed previously.

0070<figref idref="DRAWINGS">FIG. 6</figref> is a diagram showing a fourth non-limiting exemplary method <b>600</b> for providing concurrent multimode communication, in accordance with various aspects of the present invention. The exemplary method <b>600</b> may, for example and without limitation, share any or all characteristics with the exemplary methods <b>100</b>, <b>300</b> and <b>500</b> illustrated in <figref idref="DRAWINGS">FIGS. 1, 3</figref> and <b>5</b> and discussed previously.

0071The exemplary method <b>600</b> may, at step <b>640</b>, comprise determining whether a plurality of communications are to occur concurrently (e.g., in a same serial wireless transmission stream) or whether a single communication is to occur. Step <b>640</b> may comprise determining whether a plurality of communications are to occur concurrently in any of a variety of manners. For example, step <b>640</b> may comprise determining that the user desires to perform the plurality of communications concurrently. Also for example, step <b>640</b> may comprise determining that present communication requirements (e.g., QoS, data rate, etc.) require that the first and second communications occur concurrently. Further for example, step <b>640</b> may comprise determining that the first and second communications are equally important or have a similar priority.

0072If it is determined at step <b>640</b> that a single communication is to occur, then step <b>640</b> may comprise directing execution flow of the exemplary method <b>600</b> to step <b>642</b>. If it is determined at step <b>640</b> that a plurality of communications are to occur concurrently, then step <b>640</b> may comprise directing execution flow of the exemplary method to step <b>644</b>.

0073The exemplary method <b>600</b> may, at step <b>642</b>, comprise communicating in a single communication mode. Step <b>642</b> may comprise performing such communication in any of a variety of manners associated with communicating in a single communication mode.

0074The exemplary method <b>600</b> may, at step <b>644</b>, comprise allocating transmission time between the plurality of communications (e.g., at least first and second communications). Such allocation may, for example, occur at the beginning of the plurality of communications, at the beginning of one of the plurality of communications, or in the middle of the plurality of communications, depending on the particular communication scenario. Step <b>644</b> may comprise allocating transmission time between the plurality of communications in any of a variety of manners, non-limiting examples of which will be provided below. For illustrative clarity, the following examples will generally discuss allocating transmission time between first and second communications. However, such examples are readily extensible to scenarios comprising more than two communications and more than two communication modes.

0075For example and without limitation, step <b>644</b> may comprise allocating transmission time between the plurality of communications (e.g., in respective first and second communication modes) based, at least in part, on any characteristics of the first and/or second communications or any characteristics associated with the first and/or second communication modes.

0076Also for example, step <b>644</b> may comprise allocating transmission time between the first and second communications (e.g., in respective first and second communication modes) based, at least in part, on quality-of-service (QoS) or other quality goals or constraints. As a non-limiting example, step <b>644</b> may comprise allocating a first amount of time (or first portion of a time window) for transmitting a first communication in a first communication mode, where the first amount of time is determined to be adequate for meeting QoS or other quality constraints associated with the first communication. Continuing the example, step <b>644</b> may also comprise allocating a second amount of time (or second portion of a time window) for transmitting a second communication in a second communication mode, where the second amount of time is determined to be adequate for meeting QoS or other quality constraints associated with the second communication.

0077Additionally for example, step <b>644</b> may comprise allocating transmission time between the first and second communications (e.g., in respective first and second communication modes) based, at least in part, on power consumption. As a non-limiting example, step <b>644</b> may comprise determining that communicating the first and/or second communications in first and/or second communication modes may be achieved in the most energy efficient manner by performing the first communication in the first communication mode for a first period of time (or first portion of a time window) and performing the second communication in the second communication mode for a second period of time (or second portion of a time window).

0078Further for example, step <b>644</b> may comprise allocating transmission time between the first and second communications (e.g., in respective first and second communication modes) based, at least in part, on monetary cost. As a non-limiting example, step <b>644</b> may comprise determining that communicating the first and/or second communications in first and/or second communication modes may be achieved in the most cost effective manner by performing the first communication in the first communication mode for a first period of time (or first portion of a time window) and performing the second communication in the second communication mode for a second period of time (or second portion of a time window).

0079Still further for example, step <b>644</b> may comprise allocating transmission time between the first and second communications (e.g., in respective first and second communication modes) based, at least in part, on carrier access requirements (e.g., listening or waiting times) associated with the first and/or second communication modes. As a non-limiting example, step <b>644</b> may comprise determining that communicating in the first communication mode effectively requires a first amount of time (or first portion of a time window) for carrier access and communicating in the second communication mode effectively requires a second amount of time (or second portion of a time window) for carrier access.

0080Also for example, step <b>644</b> may comprise allocating transmission time between the first and second communications (e.g., in respective first and second communication modes) based, at least in part, on message size requirements (e.g., packet or frame size) associated with the first and/or second communication modes. As a non-limiting example, step <b>644</b> may comprise determining that communicating in the first communication mode effectively requires a first amount of time (or first portion of a time window) for packet or frame transmission and communicating in the second communication mode effectively requires a second amount of time (or second portion of a time window) for packet or frame transmission.

0081Yet further for example, step <b>644</b> may comprise allocating transmission time between the first and second communications (e.g., in respective first and second communication modes) based, at least in part, on communication bandwidth needs or availability. As a non-limiting example, step <b>644</b> may comprise determining that communicating the first communication requires a first communication bandwidth, which is associated with communicating in the first communication mode for a first time period (or first portion of a time window), and determining that communicating the second communication requires a second communication bandwidth, which is associated with communicating in the second communication mode for a second time period (or second portion of a time window).

0082Also for example, step <b>644</b> may comprise allocating (or re-allocating) transmission time between the first and second communications (e.g., in respective first and second communication modes) based, at least in part, on real-time communication conditions. Various examples of such real-time communication conditions were discussed previously, including without limitation, noise, changing bandwidth requirements, changing power consumption and/or power supply parameters, changing range requirements, etc. In a scenario where step <b>644</b> comprises allocating transmission time, step <b>644</b> may also comprise re-allocating transmission time in accordance with changes in any of the variety of communication conditions (e.g., upon which a previous time allocation was determined).

0083Additionally for example, step <b>644</b> may comprise allocating transmission time between the first and second communications (e.g., in respective first and second communication modes) based, at least in part, on communication security needs or capability. As a non-limiting example, step <b>644</b> may comprise determining that particular levels of encryption associated with the first and/or second communication modes may require more or less communication bandwidth, which may then be considered in allocating transmission time. Also for example, step <b>644</b> may comprise determining that one of the first and/or second communication modes is more secure and allocating respectively more time to the more secure communication mode.

0084Further for example, step <b>644</b> may comprise allocating transmission time between the first and second communications (e.g., in respective first and second communication modes) based, at least in part, on communication range needs or availability. As a non-limiting example, step <b>644</b> may comprise determining that a first portion of communications (including the first communication) may be performed utilizing a first communication mode having an associated first communication range, and a second portion of communications (including the second communication) may be performed utilizing a second communication mode having an associated second communication range.

0085Note that a communication device implementing the exemplary method <b>600</b> may perform transmission time allocation independently or may communicate with other communication systems while performing such time allocation. For example and without limitation, step <b>644</b> may comprise communicating with respective communication systems corresponding to the first and second communication modes to determine various communication constraints. For example, step <b>644</b> may comprise communicating with the respective communication systems to determine timing constraints and/or available channels, timeslots or carriers. Step <b>646</b> may thus, comprise satisfying various communication constraints associated with each of the respective communication systems in a non-conflicting manner.

0086In general, step <b>644</b> may comprise allocating time between at least the first and second communications (e.g., in respective first and second communication modes) based on any one or more of a variety of criteria. Accordingly, the scope of various aspects of the present invention should not be limited by characteristics of any particular manner of performing such allocation or any particular criterion or criteria considered in performing such allocation.

0087The exemplary method <b>600</b> may, at step <b>646</b>, comprise communicating in a plurality of communication modes (e.g., in a same serial wireless transmission stream) according to a time allocation (e.g., as determined at step <b>644</b>).

0088The exemplary methods <b>100</b>, <b>300</b>, <b>500</b> and <b>600</b> illustrated in <figref idref="DRAWINGS">FIGS. 1, 3</figref>, <b>5</b> and <b>6</b>, and discussed previously, were presented to provide non-limiting examples of various aspects of the present invention. Accordingly, the scope of various aspects of the present invention should not be limited by particular characteristics of the exemplary methods <b>100</b>, <b>300</b>, <b>500</b> and <b>600</b>.

0089<figref idref="DRAWINGS">FIG. 7</figref> is a diagram showing a portion of a first exemplary multimode communication system <b>700</b>, in accordance with various aspects of the present invention. As discussed previously, a communication system may comprise characteristics of any of a variety of communication systems/devices (e.g., fixed and/or mobile multimode communication devices). The exemplary communication system <b>700</b> may, for example and without limitation, be adapted to perform any or all of the functionality discussed previously with regard to the exemplary methods <b>100</b>, <b>300</b>, <b>500</b> and <b>600</b> discussed previously.

0090The following discussion may, at times, refer to implementation of particular functionality by one or more modules. Such modules may, for example, comprise various combinations of hardware and/or software. Also, the following discussion will illustrate and discuss various aspects of the present invention in terms of functional modules. Such manner of discussion was chosen for illustrative clarity and not limitation. For example, various functional modules may share various hardware and/or software components. Accordingly, the scope of various aspects of the present invention should not be limited by any particular module implementation or by any arbitrary boundaries between various modules.

0091The exemplary communication system <b>700</b> comprises hardware and/or software to perform communication in multiple communication modes. As an illustration of this, the exemplary communication system <b>700</b> comprises a plurality of communication protocol stacks associated with the plurality of communication modes. For example, the first protocol stack <b>710</b> may be adapted to perform communication in a first communication mode, the second protocol stack <b>720</b> may be adapted to perform communication in a second communication mode, and the N^thprotocol stack <b>795</b> may be adapted to perform communication in an N^thcommunication mode.

0092As will be illustrated in later figures, the particular make-up of a communication stack may vary in accordance with the respective communication protocol (or mode) in which the communication stack is adapted to communicate. For example, the stack layer labels in <figref idref="DRAWINGS">FIG. 7</figref> are, by no means, to be seen as limiting various aspects of the present invention to characteristics of protocol stacks having layers with such stack layer labels.

0093Also, as will be illustrated in later figures, various protocol stack layers may share various hardware and/or software components. For example, the graphical separation of the first <b>710</b>, second <b>720</b> and N^th<b>795</b> protocol stacks in <figref idref="DRAWINGS">FIG. 7</figref> (and other figures) is for illustrative clarity and should not limit the scope of various aspects of the present invention to characteristics of such complete separation.

0094<figref idref="DRAWINGS">FIG. 8</figref> is a diagram showing a portion of a second exemplary multimode communication system <b>800</b>, in accordance with various aspects of the present invention. The exemplary communication system <b>800</b> may share any or all characteristics with the exemplary communication system <b>700</b> of <figref idref="DRAWINGS">FIG. 7</figref> and may share any or all functional characteristics with the exemplary methods <b>100</b>, <b>300</b>, <b>500</b> and <b>600</b> discussed previously.

0095The exemplary system <b>800</b> comprises a first protocol stack <b>810</b> adapted to communicate in a first communication mode and a second protocol stack <b>820</b> adapted to communicate in a second communication mode. For example and without limitation, the first protocol stack <b>810</b> may be associated with a first communication protocol (e.g., an IEEE 802.11 protocol), and the second protocol stack <b>820</b> may be associated with a second communication protocol (e.g., Bluetooth). As explained previously, the scope of various aspects of the present invention should not be limited by characteristics of a particular protocol stack.

0096The exemplary system <b>800</b> and the remaining systems <b>900</b>-<b>1100</b> illustrated in <figref idref="DRAWINGS">FIGS. 9-11</figref> are illustrated with two protocol stacks. The two-stack model is shown and discussed for illustrative clarity and not limitation. For example, as illustrated in the exemplary system <b>700</b> of <figref idref="DRAWINGS">FIG. 7</figref>, various aspects of the present invention apply to communication systems comprising any number of protocol stacks.

0097<figref idref="DRAWINGS">FIG. 9</figref> is a diagram showing a portion of a third exemplary multimode communication system <b>900</b>, in accordance with various aspects of the present invention. The exemplary communication system <b>900</b> may share any or all characteristics with the exemplary communication systems <b>700</b>-<b>800</b> illustrated in <figref idref="DRAWINGS">FIGS. 7-8</figref> and may share any or all functional characteristics with the exemplary methods <b>100</b>, <b>300</b>, <b>500</b> and <b>600</b> discussed previously.

0098The exemplary communication system <b>900</b> comprises a first protocol stack <b>910</b> adapted to communicate in a first communication mode and a second protocol stack <b>920</b> adapted to communicate in a second communication mode. For example and without limitation, the first protocol stack <b>910</b> may be associated with a first communication protocol (e.g., an IEEE 802.11protocol), and the second protocol stack <b>920</b> may be associated with a second communication protocol (e.g., Bluetooth). As explained previously, the scope of various aspects of the present invention should not be limited by characteristics of a particular protocol stack.

0099The exemplary communication system <b>900</b> also comprises a radio access arbitration module <b>930</b> (“RAAM”) that may, for example, be adapted to work in conjunction with the first protocol stack <b>910</b> and the second protocol stack <b>920</b> to manage concurrent communications through the protocol stacks <b>910</b>, <b>920</b>. The RAAM <b>930</b> (e.g., working in conjunction with the first and second protocol stacks <b>910</b>, <b>920</b>) may, for example and without limitation, be adapted to perform any or all of the functionality discussed previously with respect to the exemplary methods <b>100</b>, <b>300</b>, <b>500</b> and <b>600</b> illustrated in <figref idref="DRAWINGS">FIGS. 1, 3</figref>, <b>5</b> and <b>6</b> and discussed previously.

0100The RAAM <b>930</b> may, for example, be implemented in any of a variety of hardware and/or software configurations. For example, at least a portion of the RAAM <b>930</b> may be implemented with a processor executing software instructions and/or with application-specific integrated circuitry. Various functional aspects of the RAAM <b>930</b> and the first and second protocol stacks <b>910</b>, <b>920</b> will now be illustrated by way of non-limiting example.

0101In a first non-limiting exemplary scenario, the RAAM <b>930</b> may be adapted to (e.g., during a first time period) direct transmission of a first portion of a first communication in a first communication mode (e.g., in a serial wireless transmission stream). The first communication may comprise characteristics of any of a variety of types of communications.

0102The RAAM <b>930</b> may be adapted to direct transmission of the first portion of the first communication in the first communication mode in any of a variety of manners. For example and without limitation, the RAAM <b>930</b> may be adapted to communicate with the first protocol stack <b>910</b> (e.g., the MAC layer or other layer) to direct communication of the first communication through the first protocol stack <b>910</b>. The RAAM <b>930</b> may also, for example, be adapted to communicate with the second protocol stack <b>920</b> (e.g., the Link Manager layer or other layer) to temporarily stop communication through the second protocol stack <b>920</b>.

0103Continuing the first non-limiting exemplary scenario, the RAAM <b>930</b> may be adapted to (e.g., during a second time period after the first time period) direct transmission of a first portion of a second communication in a second communication mode (e.g., in the same serial wireless transmission stream as the first portion of the first communication). As with the first communication, the second communication may comprise characteristics of any of a variety of types of communications. The second communication may, for example, be independent of the first communication. Alternatively for example, the second communication may correspond to a second portion of an aggregate communication, and the first communication may correspond to a first portion of the aggregate communication.

0104The RAAM <b>930</b> may be adapted to direct transmission of the first portion of the second communication in the second communication mode in any of a variety of manners. For example and without limitation, the RAAM <b>930</b> may be adapted to communicate with the second protocol stack <b>920</b> (e.g., the Link Manager layer or other layer) to direct communication of the second communication through the second protocol stack <b>920</b>. The RAAM <b>930</b> may also, for example, be adapted to communicate with the first protocol stack <b>910</b> (e.g., the MAC layer or other layer) to temporarily stop communication through the first protocol stack <b>910</b> (e.g., stop communication of the first communication or other communication).

0105The first and second protocol stacks <b>910</b>, <b>920</b> may be adapted to communicate information in any of a variety of manners. For example, the respective PHY layers of the first and second protocol stacks <b>910</b>, <b>920</b> may be adapted to communication information in a wireless RF or optical manner. Note that the respective PHY layers may each comprise radio circuitry dedicated to communicating in their respective communication modes and may also comprise radio circuitry that is shared between both PHY layers. For example, the PHY layer of the first protocol stack <b>910</b> may utilize a first set of radio components to transmit in the first communication mode, and the PHY layer of the second protocol stack <b>920</b> may utilize a second set of radio components to transmit in the second communication mode, where at least a portion of the second set of radio components are in the first set of radio components.

0106Continuing the first non-limiting exemplary scenario, the RAAM <b>930</b> may be adapted to (e.g., during a third time period after the second time period) direct transmission of a second portion of the first communication in the first communication mode (e.g., in the same serial wireless transmission stream as the first portion of the first communication and the first portion of the second communication). The RAAM <b>930</b> may be adapted to direct transmission of the second portion of the first communication in the first communication mode in any of a variety of manners. For example and without limitation, the RAAM <b>930</b> may be adapted to communicate with the first protocol stack <b>910</b> (e.g., the MAC layer or other layer) to direct communication of the first communication (e.g., a second portion thereof) through the first protocol stack <b>910</b>. The RAAM <b>930</b> may also, for example, be adapted to communicate with the second protocol stack <b>920</b> (e.g., the Link Manager layer or other layer) to temporarily stop communication through the second protocol stack <b>920</b> (e.g., stop communication of the second communication or other communication).

0107As mentioned previously, communication through the first and second protocol stacks <b>910</b>, <b>920</b> may be performed in a plurality of communication modes utilizing at least shared PHY layer components (e.g., shared radio or various shared radio components). The exemplary communication system <b>1000</b> of <figref idref="DRAWINGS">FIG. 10</figref> is presented to provide a non-limiting exemplary illustration of utilizing such a shared radio or shared radio components.

0108<figref idref="DRAWINGS">FIG. 10</figref> is a diagram showing a portion of a fourth exemplary multimode communication system <b>1000</b>, in accordance with various aspects of the present invention. The exemplary communication system <b>1000</b> may, for example and without limitation, share any or all characteristics with the exemplary communication systems <b>700</b>-<b>900</b> illustrated in <figref idref="DRAWINGS">FIGS. 7-9</figref> and discussed previously and/or any or all functional characteristics of the exemplary methods <b>100</b>, <b>300</b>, <b>500</b> and <b>600</b> discussed previously.

0109The exemplary communication system <b>1000</b> may comprise a first protocol stack <b>1010</b> adapted to communicate in a first communication mode, a second protocol stack <b>1020</b> adapted to communicate in a second communication mode and a radio access arbitration module <b>1030</b> (“RAAM”). The first protocol stack <b>1010</b> may comprise PHY 1 layer components dedicated to communicating in the first communication mode, and the second protocol stack <b>1020</b> may comprise Physical Radio Components dedicated to communicating in the second communication mode. The first protocol stack <b>1010</b> and the second protocol stack <b>1020</b> may also share Shared PHY Components, which may, for example, be configurable (e.g, programmable) to be utilized for communication in either of the first and second communication modes. Various functional aspects of the RAAM <b>1030</b> and the first and second protocol stacks <b>1010</b>, <b>1020</b> will now be presented by way of non-limiting example.

0110In a second non-limiting exemplary scenario, the RAAM <b>1030</b> may be adapted to prepare the Shared PHY components (e.g., various radio components) of the communication system <b>1000</b> for communicating in the first communication mode. For example, the RAAM <b>1030</b> may comprise directing a programmable radio and/or shared radio components to change configuration to a configuration corresponding to communicating in the first communication mode.

0111The RAAM <b>1030</b> may also, for example, be adapted to prepare a PHY layer (e.g., a radio) of the communication system <b>1000</b> by, at least in part, waking sleeping components of the communication system <b>1000</b> that are associated with communicating in the first communication mode (e.g., the PHY 1 components). The RAAM <b>1030</b> may additionally, for example, be adapted to place one or more components of the communication system <b>1000</b> (e.g., components associated with a previous communication mode different from the first communication mode) in a sleep state.

0112The RAAM <b>1030</b> (or other module of the system <b>1000</b>) may then be adapted to wait a transient time period (e.g, after programming the programmable PHY components or directing the programmable PHY components to change configuration). Such waiting may, for example, ensure that various switching and other devices (e.g., filters, frequency generators, codecs, etc.) have stabilized or converged to the desired state before utilizing the PHY components.

0113Continuing the second non-limiting exemplary scenario, the RAAM <b>1030</b> may then be adapted to (e.g., during a first time period) direct transmission of a first portion of a first communication in a first communication mode (e.g., in a serial wireless transmission stream). As discussed previously with regard to the RAAM <b>930</b> of <figref idref="DRAWINGS">FIG. 9</figref>, the RAAM <b>1030</b> may be adapted to direct transmission of the first portion of the first communication in the first communication mode in any of a variety of manners. For example and without limitation, the RAAM <b>1030</b> may be adapted to communicate with the first protocol stack <b>1010</b> (e.g., the MAC layer or other layer) to direct communication of the first communication through the first protocol stack <b>1010</b>. The RAAM <b>1030</b> may also, for example, be adapted to communicate with the second protocol stack <b>1020</b> (e.g., the Link Manager layer or other layer) to temporarily stop communication through the second protocol stack <b>1020</b>.

0114Continuing the second non-limiting exemplary scenario, the RAAM <b>1030</b> may be adapted to prepare the Shared PHY components (e.g., various radio components) of the communication system <b>1000</b> for communicating in the second communication mode. For example, the RAAM <b>1030</b> may comprise directing a programmable radio and/or shared radio components to change configuration to a configuration corresponding to communicating in the second communication mode.

0115The RAAM <b>1030</b> may also, for example, be adapted to prepare a PHY layer (e.g., a radio) of the communication system <b>1000</b> by, at least in part, waking sleeping components of the communication system <b>1000</b> that are associated with communicating in the second communication mode. The RAAM <b>1030</b> may additionally, for example, be adapted to place one or more components of the communication system <b>1000</b> (e.g., components associated with the first communication mode and not the second communication mode) in a sleep state.

0116The RAAM <b>1030</b> (or other module of the system <b>1000</b>) may then be adapted to wait a transient time period (e.g., after programming the programmable PHY components or directing the programmable PHY components to change configuration). Such waiting may, for example, ensure that various switching and other devices (e.g., filters, frequency generators, codecs, etc.) have stabilized or converged to the desired state before utilizing the PHY components. The transient time period may, for example, be the same transient time period associated with the first communication mode or may be different (e.g., depending on settling or convergence characteristics).

0117Continuing the second non-limiting exemplary scenario, the RAAM <b>1030</b> may then be adapted to (e.g., during a second time period) direct transmission of a first portion of a second communication in a second communication mode (e.g., in the same serial wireless transmission stream as the first portion of the first communication). As discussed previously with regard to the RAAM <b>930</b> of <figref idref="DRAWINGS">FIG. 9</figref>, the RAAM <b>1030</b> may be adapted to direct transmission of the first portion of the second communication in the second communication mode in any of a variety of manners. For example and without limitation, the RAAM <b>1030</b> may be adapted to communicate with the second protocol stack <b>1020</b> (e.g., the Link Manager layer or other layer) to direct communication of the second communication through the second protocol stack <b>1020</b>. The RAAM <b>1030</b> may also, for example, be adapted to communicate with the first protocol stack <b>1010</b> (e.g., the MAC layer or other layer) to temporarily stop communication through the second protocol stack <b>1010</b> (e.g., at least temporarily stop communicating the first communication).

0118Continuing the second non-limiting exemplary scenario, the RAAM <b>1030</b> may be adapted to repeat the process discussed previously for switching back to communication of the first communication in the first communication mode (e.g., in the same serial wireless transmission stream as the first portion of the first communication and the first portion of the second communication). For example, the RAAM <b>1030</b> may be adapted to interact with the first protocol stack <b>1010</b> and the second protocol stack <b>1020</b> to at least temporarily stop transmission of the second communication in the second communication mode and resume transmission of the first communication in the first communication mode.

0119Each of the exemplary scenarios discussed thus far have comprised switching between communicating the first communication in the first communication mode and communicating the second communication in the second communication mode. Such switching may result from a RAAM determining to perform such a switch. A RAAM may perform such a switch in response to any of a variety of conditions. For example, a RAAM may determine to switch communications (and/or communication modes) in response to a detected condition or event or in accordance with a predetermined transmission time allocation. The next two exemplary scenarios provide non-limiting illustrations of such switching determination.

0120In a third non-limiting exemplary scenario, the RAAM <b>1030</b> may be adapted to (e.g., during a first time period) direct transmission of a first portion of a first communication in a first communication mode (e.g., in a serial wireless transmission stream). Examples of such transmission were discussed previously.

0121The RAAM <b>1030</b> (or other module) may then be adapted to determine to communicate a second communication in a second communication mode (e.g., in the same serial wireless transmission stream as the first communication). The RAAM <b>1030</b> may, for example, be adapted to determine to communicate the second communication concurrently with the first communication. The RAAM <b>1030</b> may be adapted to make such determination(s) in response to any of a variety of events or conditions. For example and without limitation, the RAAM <b>1030</b> may share any or all functional characteristics with step <b>517</b> of the exemplary method <b>500</b> illustrated in <figref idref="DRAWINGS">FIG. 5</figref> and discussed previously.

0122For example and without limitation, the RAAM <b>1030</b> may be adapted to determine to switch between transmitting the first communication and second communication in response to: a received signal, timer expiration, network availability, carrier availability, geographical location, noise conditions, power consumption and/or supply, QoS requirements, data rate, security, range, communication priority, monetary cost, any combination of considerations, etc. Accordingly, the scope of various aspects of the present invention should not be limited by characteristics of any particular manner of, or mechanism for, making such a determination.

0123Continuing the third non-limiting exemplary scenario, the RAAM <b>1030</b> may be adapted to, after determining to switch to communicating the second communication in the second communication mode, direct transmission of a first portion of the second communication in the second communication mode (e.g., in the same serial wireless transmission stream as the first communication). Examples of such transmission were discussed previously.

0124The RAAM <b>1030</b> may then be adapted to determine to communicate the first communication in the first communication mode, or another communication in another communication mode, (e.g., in the same serial wireless transmission stream as the second communication). The RAAM <b>1030</b> may be adapted to make such determination in response to any of a variety of events or conditions, examples of which were provided previously.

0125In a fourth non-limiting exemplary scenario, the RAAM <b>1030</b> (or other module) may be adapted to determine to concurrently perform a plurality of communications in a plurality of respective communication modes (e.g., a first communication in a first communication mode in a first serial wireless transmission stream and a second communication in a second communication mode in the first serial wireless transmission stream). The RAAM <b>1030</b> may be adapted to make such a determination in any of a variety of manners. For example and without limitation, the RAAM <b>1030</b> may be adapted to determine that the user desires to perform the first and second communications concurrently. Also for example, the RAAM <b>1030</b> may be adapted to determine that present communication requirements (e.g., QoS, data rate, etc.) require that the first and second communications occur concurrently. Further for example, the RAAM <b>1030</b> may be adapted to determine that the first and second communications are equally important or have a similar priority.

0126The RAAM <b>1030</b> may then be adapted to allocate transmission time between first and second communications (e.g., in a same serial wireless transmission stream). Such allocation may, for example, occur at the beginning of the first and second communications, at the beginning of one of the first and second communications, or in the middle of both first and second communications, depending on the particular communication scenario. The RAAM <b>1030</b> may be adapted to allocate transmission time between the first and second communications in any of a variety of manners. For example and without limitation, the RAAM <b>1030</b> may share any or all functional characteristics with step <b>644</b> of the exemplary method <b>600</b> illustrated in <figref idref="DRAWINGS">FIG. 6</figref> and discussed previously.

0127For example and without limitation, the RAAM <b>1030</b> may be adapted to allocate transmission time between a plurality of communications based, at least in part on: communication mode characteristics, QoS or other quality goals or constraints, power consumption and/or supply, monetary cost, network availability, carrier accessibility, communication type, message or frame or packet size, communication bandwidth needs and/or availability, security needs and/or capabilities, communication range, any combination of considerations, etc. The scope of various aspects of the present invention should not be limited by any particular manner of, or mechanism for, allocating transmission time between a plurality of communications and/or communication modes.

0128Further for example, the RAAM <b>1030</b> may be adapted to allocate (or re-allocate) transmission time between a plurality of communications and/or communication modes based on various real-time communication conditions, some of which were discussed previously. Such real-time communication conditions may, for example, comprise without limitation: noise, changing bandwidth requirements, changing power consumption and/or supply parameters, changing range requirements, etc. In an example where the RAAM <b>1030</b> is adapted to allocate transmission time, the RAAM <b>1030</b> may also be adapted to re-allocate transmission time in accordance with changes in any of the variety of communication conditions (e.g., upon which a previous time allocation was determined).

0129Continuing the fourth non-limiting exemplary scenario, the RAAM <b>1030</b> may then be adapted to direct the concurrent transmission of a plurality of communications in a plurality of respective communication modes (e.g., in a same serial wireless transmission stream) according to the determined transmission time allocation.

0130As mentioned previously, various functional modules are illustrated and discussed as independent entities for illustrative clarity and not for limitation. For example, the RAAMs <b>930</b>, <b>1030</b> discussed previously may be implemented as part of any one or more protocol stacks. <figref idref="DRAWINGS">FIG. 11</figref> provides non-limiting examples of various implementation options. <figref idref="DRAWINGS">FIG. 11</figref> is a diagram showing a portion of a fifth exemplary multimode communication system <b>1100</b>, in accordance with various aspects of the present invention.

0131The exemplary communication system <b>1100</b> may, for example, comprise a first protocol stack <b>1110</b> and a second protocol stack <b>1120</b>. In a first non-limiting exemplary configuration, the RAAM may be implemented exclusively in the first protocol stack <b>1110</b> (e.g., illustrated by RAAM <b>1</b><b>1131</b>). In a second non-limiting exemplary configuration, the RAAM may be implemented exclusively in the second protocol stack <b>1120</b> (e.g., as illustrated by RAAM <b>2</b><b>1132</b>). In a third non-limiting exemplary configuration, the RAAM may be implemented in a distributed manner in the first and second protocol stacks <b>1110</b>, <b>1120</b> (e.g., as illustrated by RAAM <b>1</b><b>1131</b> in combination with RAAM <b>2</b><b>1132</b>). In such a distributed configuration the distributed RAAM modules may comprise a master RAAM and slave RAAM(s), or the distributed RAAM modules may be generally equivalent and guided by decision rules that ensure effective transmission coordination.

0132The exemplary communication systems <b>700</b>-<b>1100</b> illustrated in <figref idref="DRAWINGS">FIGS. 7-11</figref> were presented to provide non-limiting examples of various aspects of the present invention. Accordingly, the scope of various aspects of the present invention should not be limited by particular characteristics of the exemplary communication systems <b>700</b>-<b>1100</b>.

0133In summary, various aspects of the present invention provide a system and method providing concurrent multimode communication through multimode signal multiplexing. While the invention has been described with reference to certain aspects and embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from its scope. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.