Communicating control information in mobile communication system
10 claims: 8 independent, 2 dependent
- 1使用者装置(UE)が 移動通信システムで制御情報を通信する方法であって、 前記方法は、 ハイブリッド自動再送要求(HARQ)プロセスを用いてネットワークに1番目のデータブロックを伝送することであって、前記1番目のデータブロックは、使用者装置により必要とされる資源の量についての情報を前記ネットワークに通知する制御情報を含む、ことと、 前記1番目のデータブロックの最大再送回数に到達する前に 前記1番目のデータブロックの伝送 について否定的な確認(NACK)が前記ネットワークから受信された場合に 、 前記1番目のデータブロックを再送せずに、 前記制御情報を更新し、前記ネットワークに前記更新された制御情報を含む2番目のデータブロックを伝送することと を含む、方法。
- 2前記制御情報は、スケジューリング情報を含む、請求項1に記載の方法。
- 3前記スケジューリング情報は、 最優先論理チャネル識別子と、 総E-DCHバッファ状態と、 最優先論理チャネルバッファ状態と、 使用者装置電力ヘッドルームと のうちの少なくとも一つを含む、請求項 2 に記載の方法。
- 4前記最優先論理チャネル識別子の変更があるときに、前記使用者装置は、他のデータ伝送よりも高い優先順位で、変更された最優先論理チャネル識別子を反映する更新されたスケジューリング情報を伝送する、請求項 3 に記載の方法。
- 5優先順位は、データが伝達される論理チャネルと関連する、請求項 3 に記載の方法。
- 6前記1番目のデータブロックおよび前記2番目のデータブロックは、媒体接近制御プロトコルデータユニットである、請求項1に記載の方法。
- 7移動通信システムで制御情報を通信するための使用者装置であって、 前記使用者装置は、 上位階層から1番目のデータおよび2番目のデータを受信し、伝送すべき1番目のデータブロックおよび2番目のデータブロックを生成する処理器であって、前記1番目のデータブロックは、前記使用者装置により必要とされる資源の量についての情報をネットワークに通知する制御情報を含む、処理器と、 前記処理器によって制御される伝送機であって、ハイブリッド自動再送要求(HARQ)プロセスを用いて前記ネットワークに前記1番目のデータブロックを伝送する伝送機と を備え、 前記処理器は、 前記1番目のデータブロックの最大再送回数に到達する前に 前記1番目のデータブロックの伝送 について否定的な確認(NACK)が前記ネットワークから受信された場合に 、 前記1番目のデータブロックを再送せずに、 前記制御情報を更新し、前記ネットワークに前記更新された制御情報を含む2番目のデータブロックを伝送するように前記伝送機を制御する、使用者装置。
- 8前記制御情報は、スケジューリング情報を含む、請求項 7 に記載の使用者装置。
- 9前記スケジューリング情報は、 最優先論理チャネル識別子と、 総E-DCHバッファ状態と、 最優先論理チャネルバッファ状態と、 使用者装置電力ヘッドルームと のうちの少なくとも一つを含む、請求項 8 に記載の使用者装置。
- 10前記1番目のデータブロックおよび前記2番目のデータブロックは、媒体接近制御プロトコルデータユニットである、請求項 7 に記載の使用者装置。
Independent claims10
53 paragraphs, as filed
The present invention relates to communicating control information in a mobile communication system. The present invention is suitable for a wide range of applications, but is particularly suitable for rapidly communicating new control information in a mobile communication system that uses an automatic repeat request technique for indicating a packet reception failure.
FIG. 1 is a block diagram of a network structure of a universal mobile telecommunications system (hereinafter abbreviated as UMTS). With reference to FIG. 1, UMTS mainly includes user equipment (hereinafter abbreviated as UE), UMTS terrestrial radio access network (hereinafter abbreviated as UTRAN), and UTRAN. Includes core network (CN).
UTRAN includes one or more radio network sub-systems (hereinafter abbreviated as RNS). An RNS includes a radio network controller (hereinafter abbreviated as RNC) and one or more base stations (Node B) managed by the RNC. There are one or more cells in one Node B.
FIG. 2 is a structural diagram of the radio protocol used in UMTS. Referring to FIG. 2, the wireless interface protocol vertically includes a physical hierarchy, a data link hierarchy and a network hierarchy, and horizontally includes a user plane for data information transmission and a control plane for signaling transmission. Including.
The protocol hierarchy in FIG. 2 is the three lower layers of open system interconnection (OSI), which are widely known in the related technical fields, that is, the first layer L1, the second layer L2, and the third layer. Divided into L3. Each hierarchy in FIG. 2 is described as follows.
The physical layer (hereinafter referred to as PHY layer) is the first layer, and uses physical channels to provide information transmission services to higher layers. The PHY layer is connected to the medium access control (hereinafter abbreviated as MAC) layer located on the PHY layer through the transmission channel. Data is transmitted between the MAC layer and the PHY layer through the transmission channel. Further, the data is transmitted between other physical layers, and more specifically, is transmitted through a physical channel between the physical layer on the transmitting side and the physical layer on the receiving side.
The MAC layer of the second layer provides services to the radio link control (hereinafter abbreviated as RLC) layer located on the MAC layer through the logical channel. The MAC layer is divided into MAC-b sub-layer, MAC-d sub-layer, MAC-c / sh sub-layer, MAC-hs sub-layer, and MAC-e sub-layer according to the type of each transmission channel managed in detail.
The MAC-b sub-tier is responsible for managing transmission channels, such as the broadcast channel (BCH), which is responsible for broadcasting system information. The MAC-c / sh sub-tier manages the shared transmission channel, which is shared by other UEs. Forward access channel (FACH) and downlink shared channel (hereinafter abbreviated as DSCH) are examples of shared transmission channels. The MAC-d sub-tier is responsible for managing dedicated transmission channels such as dedicated channels (hereinafter abbreviated as DCH) for specific UEs. The MAC-hs sub-tier manages transmission channels such as high speed downlink shared channels (HS-DSCH) to support high speed data transmission over downlinks and uplinks. MAC-e sub-tier is enhanced dedicated channel (enhanced) for uplink data transmission dedicated channel; hereinafter abbreviated as E-DCH. ) And other transmission channels.
FIG. 3 is a diagram showing a structural example of DCH and E-DCH. Referring to FIG. 3, DCH and E-DCH are transmission channels exclusively used by one UE. Specifically, the E-DCH is used by the UE that carries data to the UTRAN over the uplink. Compared to DCH, E-DCH can transmit uplink data faster than DCH. In order to transmit data at high speed, E-DCH is referred to as, for example, hybrid automatic repeat request (hereinafter abbreviated as HARQ), adaptive modulation and coding (hereinafter abbreviated as AMC). ) And adopt technologies such as scheduling controlled by Node B.
For E-DCH, Node-B transmits downlink control information to the UE to control the E-DCH transmission of the UE. The downlink control information includes, for example, response information (ACK / NACK) for HARQ, channel quality information for AMC, E-DCH transmission rate allocation information, E-DCH transmission start time and transmission time interval allocation information, and Contains transmission block size information. On the other hand, the UE transmits uplink control information to Node B. Uplink control information includes, for example, E-DCH rate request information for Node B control scheduling, UE buffer status information, and UE power status information. Uplink and downlink control information for the E-DCH is transmitted through a physical control channel such as an enhanced dedicated physical control channel (hereinafter abbreviated as E-DPCCH).
The MAC-d flow is defined between the MAC-d sub-layer and the MAC-e sub-layer for E-DCH. In this case, the dedicated logical channel is mapped to the MAC-d flow. The MAC-d flow is mapped to the transmission channel E-DCH, and the E-DCH is mapped to the other physical channel E-DPDCH (enhanced dedicated physical data channel). On the other hand, the dedicated logical channel may be mapped directly to the DCH. In this case, the transmission channel DCH is mapped to a dedicated physical data channel (DPDCH). The MAC-d sub-tier in Figure 3 manages the DCH as a dedicated transmission channel for a particular UE, and the MAC-e sub-tier is the E- as a transmission channel used to carry fast data over the uplink. Manage DCH.
The MAC-d sub-layer on the transmission side is the MAC-d protocol data unit (protocol data) from the upper layer, that is, the MAC-d service data unit (hereinafter abbreviated as SDU) transmitted from the RLC layer. unit; hereinafter abbreviated as PDU) is set. The MAC-d sub-tier on the receiving side activates the recovery of the MAC-d SDU from the MAC-d PDU received from the lower hierarchy, and transmits the recovered MAC-d SDU to the upper hierarchy. By doing so, the MAC-d exchanges the MAC-d PDU with the MAC-e sub-tier through the MAC-d flow and the MAC-d PDU with the physical layer through the DCH. The receiving MAC-d sub-tier recovers the MAC-d PDU using the MAC-d header attached to the MAC-d PDU before transmitting its recovered MAC-d SDU to the higher layers. ..
The MAC-e sub-layer on the transmission side sets the MAC-e PDU from the upper layer, that is, the MAC-e SDU corresponding to the MAC-d PDU transmitted from the MAC-d sub-layer. The receiving MAC-e sub-tier activates the recovery of the MAC-e SDU from the lower hierarchy, that is, the MAC-e PDU received from the physical hierarchy, and transmits the recovered MAC-e SDU to the upper hierarchy. To do. By doing so, the MAC-e exchanges the MAC-e PDU with the physical hierarchy through the E-DCH. The receiving MAC-e sub-tier recovers the MAC-e SDU using the MAC-e header attached to the MAC-e PDU before transmitting its recovered MAC-e SDU to the higher layers. ..
FIG. 4 is a diagram showing the protocol for E-DCH. Referring to FIG. 4, the MAC-e sub-layer that supports E-DCH exists under the MAC-d sub-layer of UTRAN. In addition, the MAC-e sub-layer of UTRAN is located in Node B, and the MAC-e sub-layer exists in each UE. On the other hand, the MAC-d sub-layer of UTRAN is located in the serving radio network controller (SRNC), which is in charge of managing the corresponding UE. Each UE has a MAC-d sub-tier.
The control information transmission for E-DCH is explained as follows. First, the scheduler resides in Node B for E-DCH. The scheduler activates the optimal allocation of radio resources to each UE existing in one cell in order to improve the efficiency of data transmission in the uplink transmission from all UEs in each cell to the base station. .. Specifically, more radio resources are allocated to UEs with good channel status within a cell so that the UE can transmit more data. To prevent the UE in question from transmitting an interfering signal on the uplink radio channel, UEs with poor channel conditions are allocated less radio resources.
When allocating radio resources to the UE in question, the scheduler does more than just consider the radio channel state of the UE. In addition, the scheduler requests control information from each UE. For example, the control information includes the amount of power available to the UE for the E-DCH, or the amount of data the UE attempts to transmit. In other words, even if the UE has better channel status, if there is no extra power available for the UE for the E-DCH or there is no data that the UE can transmit in the uplink direction, the radio resources Must not be assigned to UE. That is, the scheduler can increase the efficiency of radio resource use within a cell only if the radio resource is allocated to a UE that has extra power for the E-DCH and data transmitted over the uplink. ..
Therefore, the UE should send control information to Node B's scheduler. Control information is transmitted in various ways. For example, the Node B scheduler can instruct the UE to report that the data transmitted over the uplink exceeds a certain value, and the UE to periodically send control information to Node B itself. Can be instructed.
When the radio resource is assigned to the UE by the scheduler of Node B, the UE sets the MAC-e PDU in the allocated radio resource and then transmits the MAC-e PDU to the base station through the E-DCH. Specifically, when there is data to be transmitted, the UE sends control information to Node B to inform Node B that there is data to be transmitted by the UE. The Node B scheduler then sends information instructing the UE to allocate radio resources based on the control information sent by the UE. In this case, the information instructing the allocation of radio resources means the maximum value of the power that the UE can transmit on the uplink, the ratio to the reference channel, and the like. The UE sets the MAC-e PDU within the permissible range based on the information instructing the allocation of radio resources, and transmits the set MAC-e PDU.
However, in the relevant prior art method, the UE continues to receive an acknowledgment from Node B that the MAC-e PDU has been received by Node B without error (hereinafter abbreviated as ACK). Transmit the e-PDU or retransmit the MAC-e PDU to the extent allowed by the maximum retry attempt value (attempt value). Therefore, when new data arrives at the UE transmitted to Node B, the new control information should also be transmitted to Node B to request the allocation of resources for the new data transmission. However, in the prior art shown in Figure 5, the UE should wait until it receives an ACK from Node B, or before transmitting a new or updated MAC-e PDU with new control information. Previous MAC-e during the maximum number of times allowed The PDU should be retransmitted. Therefore, the time it takes for the UE to receive the radio resource allocation is delayed. Also, given that information such as power information is frequently changed, erroneous or outdated information is transmitted under the relevant prior art methods.
<p> The present invention aims to communicate control information in a mobile communication system.</p><p> The additional features and strengths of the present invention will be developed through the following description, which will be partially apparent from the above description or will be learned through practice of the present invention. The objects and other advantages of the present invention may be realized and acquired not only by the drawings to which this document is attached, but also by the structures specifically pointed out in the description and claims.</p>
<p> The present invention is embodied within a method for communicating control information in a mobile communication system, as broadly described and embodied in order to achieve the above and other advantages for the purposes of the present invention. The present invention relates to the step of transmitting a first data block containing control information for transmitting the first data when resources for transmitting the first data are not available; As the second data having a higher priority than the second data, the stage of receiving the second data transmitted from the upper layer; and the resources for transmitting the first and second data are not used. When possible, it includes the stage of transmitting a second data block containing updated control information for transmitting the first and second data; The priority is preferably related to the logical channel through which the data is transmitted.</p><p> In the uniform phase of the present invention, the control information communication method further includes setting an automatic retransmission request technique together with a receiver for receiving feedback information regarding the first and second data block transmissions. The receiver corresponds to one of a mobile terminal and a network.</p><p> The second data block is preferably transmitted independently of the reception of feedback information from the receiver for the first data block transmission.</p><p> Before receiving an ACK for the first data block from the receiver, the first data block is retransmitted to the receiver using the automatic retransmission request technique, and the receiver is a mobile terminal and It is preferable that it corresponds to one of the networks.</p><p> If no ACK for the first data block is received from the receiver, the first data block is retransmitted to the receiver a maximum number of times set by the receiver using the automatic retransmission request technique. The receiver preferably corresponds to one of a mobile terminal and a network.</p><p> The second data block is retransmitted to the receiver using the automatic retransmission request technique until it receives an ACK for the second data block from the receiver, and the receiver is a mobile terminal and It is preferable that it corresponds to one of the networks.</p><p> If no ACK for the second data block is received from the receiver, the second data block is retransmitted to the receiver a maximum number of times set by the receiver using the automatic retransmission request technique. The receiver corresponds to one of a mobile terminal and a network.</p><p> In another aspect of the invention, the control information includes scheduling information, which is the highest priority logical channel identifier; total E-DCH buffer state; highest priority logical channel buffer state; and mobile terminal power headroom. Includes at least one of them.</p><p> In yet another aspect of the invention, the first data block is a MAC-e PDU and the second data block is a MAC-e PDU.</p><p> According to another embodiment of the present invention, the mobile terminal for communicating control information in the mobile communication system has the first data and the second data in which the second data has a higher priority than the first data. With a processor that receives the first data block and the second data block to be transmitted from the upper layer; when the resource for the transmission of the first data is unavailable, said 1 The transmitter includes a transmitter adjusted by the processor for transmitting the first data block, which contains control information for transmitting the first data; the transmitter includes the first data and the second. When resources for transmitting the second data are not available, the second data block containing the first data and updated control information for transmitting the second data is transmitted.</p><p> The priority is preferably related to the logical channel through which the data is transmitted.</p><p> In the uniform phase of the present invention, the mobile terminal sets up an automatic retransmission request technique together with a receiver for receiving feedback information regarding the transmission of the first data block and the second data block. The receiving side corresponds to one of the mobile terminal and the network.</p><p> The second data block is preferably transmitted independently of the reception of feedback information from the receiving side for the first data block transmission.</p><p> The first data block is retransmitted to the receiving side using the automatic retransmission request technique until before receiving an ACK for the first data block from the receiving side, and the receiving side is a mobile terminal. And it is preferable to correspond to one of the networks.</p><p> If the ACK for the first data block is not received from the receiver, the first data block is retransmitted to the receiver a maximum number of times set by the receiver using the automatic retransmission request technique. It is preferable that the receiving side corresponds to one of the mobile terminal and the network.</p><p> Until the receiving side receives an ACK for the second data block, the second data block is retransmitted to the receiving side using the automatic retransmission request technique, and the receiving side is a mobile terminal and a network. It is preferable to correspond to one of them.</p><p> If the ACK for the second data block is not received from the receiver, the second data block is retransmitted to the receiver a maximum number of times set by the receiver using the automatic retransmission request technique. It is preferable that the receiving side corresponds to one of the mobile terminal and the network.</p><p> In another aspect of the invention, the control information includes scheduling information, which is the highest priority logical channel identifier; total E-DCH buffer state; highest priority logical channel buffer state; and mobile terminal power headroom. Includes at least one of them.</p><p> In yet another aspect of the invention, the first data block is a MAC-e PDU and the second data block is a MAC-e PDU.</p><p> The general description of the invention described above and the detailed description below are all exemplary and descriptive, and additional description of the invention as claimed is provided below.</p>
The present invention relates to communicating control information in a mobile communication system.
Hereinafter, preferred embodiments of the present invention, which are examples shown in the attached drawings, will be described. Here, the same reference number is used to indicate the same part or the corresponding part throughout the drawing.
The transmission method using the HARQ technique is described as follows. First, HARQ uses E-DCH to increase the probability of successfully transmitted data reaching the receiver and reduce the power required for its corresponding arrival. Therefore, under HARQ, increasing the probability of successful transmission and reducing the required power depends on the feedback information sent from the receiving side to the transmitting side. The feedback information preferably notifies the transmitting side whether or not the data transmitted by the transmitting side is received by the receiving side without error.
For example, when the receiving side receives the packet 1 transmitted by the transmitting side such as UE through the physical channel without error, the receiving side transmits the reception success signal or the ACK. If the receiver fails to receive packet 1 without error, the receiver receives a negative confirmation (negative). acknowledgement; Hereinafter, abbreviated as NACK. ) Is transmitted. The transmission side then transmits new data, such as packet 2, if the feedback is ACK with respect to the feedback transmitted by the transmission side, and retransmits packet 1 if the feedback is NACK. By doing so, the transmitting side attempts transmission using both the previous packet 1 (transmitted first) and the subsequent packet 1 (transmitted second). If this is successful, the receiving side transmits the ACK to the transmitting side. If this fails, the receiving side transmits NACK to the transmitting side. When the NACK is received by the transmitting side, the transmitting side repeats the above process. In this case, the retransmitted packet 1 must be the same as the previous packet 1. Otherwise, the receiver will not be able to recover the data without error.
However, if the UE remains in a region with poor channel conditions or the data transmitted by the UE is sensitive to transmission delays, the UE is vaguely unable to perform the re-transmission described above. Is. Therefore, the receiving side informs the UE of the maximum number of transmissions and retransmissions that can be used. If NACK is received from the receiving side after attempting to transmit data the maximum number of times of re-transmission, the UE cancels the attempt to transmit the corresponding data and attempts to transmit the next data.
Therefore, even if the MAC-e PDU contains control information, the UE attempts to retransmit the MAC-e PDU for the maximum number of retransmissions. As described above, the above-mentioned retransmission is necessary to increase the probability of successful reception of the MAC-e PDU on the receiving side. The contents included in the control information include the highest priority channel, the highest priority channel ratio, the total buffer amount, and the power margin. Here, the highest priority channel means the channel having the highest priority among the channels having the data to be transmitted.
As described above, in the HARQ system, the transmitting side transmits data, waits for feedback from the receiving side, and then decides whether to perform re-transmission depending on the content of the feedback. However, after the data is transmitted by the transmitting side, a long time elapses until the response from the receiving side arrives at the transmitting side. While waiting for a response, the UE can receive a variety of new data from the user. In this case, the highest priority channel is changed, or other information such as total buffer amount, power margin, etc. is changed.
In particular, the highest priority channel information is important. The reason is that Node B allocates the radio resource to the UE with the higher priority when considering all the UEs in the cell while allocating the radio resource. Therefore, if the highest priority channel contained in the control information first transmitted by the UE is the channel with the lower priority and data arrives at the UE from the channel with the higher priority, the UE will receive this information. Must be notified to Node B immediately. For example, a UE can notify Node B when it receives a NACK from Node B.
FIG. 6A is a diagram showing a method of communicating control information according to an embodiment of the present invention. Referring to FIG. 6A, the first data packet (MAC-e PDU1) containing the first control information for the first data is transmitted from the UE to the receiver, which is, for example, network or mobile. It is a terminal. The first control information preferably requests the allocation of resources for transmitting the first data. Subsequently, new data transmitted to the receiving side arrives at the UE. To transmit that new data, the UE sends control information associated with the new data (new control information) to the receiver through a new or updated data packet (MAC-e PDU2) from the receiver. Request the allocation of data transmission resources.
As shown in FIG. 6A, the UE has a maximum number of first data packet retransmissions until it receives an ACK for the first data packet from the receiver or before transmitting new control information to the receiver. It is preferable not to wait until it is obtained. Rather, the UE waits to receive a NACK for the first data packet. Upon receiving the NACK, the UE sets a new data packet or updates the first data packet to include new control information. The new or updated data packet is then transmitted to the receiver.
FIG. 6B is a diagram showing a method of communicating control information according to another embodiment of the present invention. As shown in Figure 6B, the new data transmitted reaches the UE when the NACK for the first data packet transmission is received from the receiver. When the NACK is received, the UE sets a new data packet or updates the first data packet to include new control information associated with the new data. The new or updated data packet is then transmitted to the receiver.
FIG. 7 is a diagram showing a method of communicating control information according to another embodiment of the present invention. Referring to FIG. 7, the UE does not wait to receive any feedback information from the receiver for previously transmitted data packets before transmitting the new control information. Therefore, when new data transmitted to the receiver reaches the UE, the UE immediately sets up a new data packet containing new control information associated with the new data to request allocation of data transmission resources. With this setting, a new data packet is transmitted to the receiving side independently of receiving feedback information for the previously transmitted data packet.
Therefore, the present invention allows UEs using E-DCH to receive services of appropriate quality. To this end, the present invention proposes a method that allows a UE to effectively transmit control information to a base station. If the content of the transmitted control information changes while the UE performs HARQ retransmission, it is preferable that the new control information of the UE is transmitted to Node B.
According to one embodiment of the present invention, when the UE transmits a MAC-e PDU containing control information to Node B and waits for a response (feedback information) from the receiver for the MAC-e PDU, the UE If the response indicates that the MAC-e PDU must be retransmitted, the UE stops retransmitting the MAC-e PDU and reconfigures the MAC-e PDU with the most recent control information transmitted. , Transmit its reconfigured MAC-e PDU. If the control information is contained only in the MAC-e PDU and the UE's control information changes while the UE receives the corresponding response, the UE stops retransmitting the MAC-e PDU and is transmitted. The MAC-e PDU is reconfigured with the most recent control information, and then the reconfigured MAC-e PDU is transmitted.
According to an embodiment of the present invention, the UE includes control information in the MAC-e PDU and transmits the MAC-e PDU to the base station. The UE then waits for a response (feedback information) from the base station to the MAC-e PDU. The UE receives an instruction instructing the UE to retransmit the MAC-e PDU, the MAC-e PDU contains only control information, and the UE that transmitted the MAC-e PDU receives the corresponding response. When the control information of is changed, the UE can ignore the maximum number of retransmissions.
According to another embodiment of the present invention, when the UE transmits a MAC-e PDU containing control information to a base station, if the MAC-e PDU contains only the control information, the present invention is the maximum of the MAC-e PDU. It is disclosed that the number of retransmissions is analyzed to 0. The UE preferably decides not to retransmit when the MAC-e PDU contains only control information. When receiving a response indicating that reception of a MAC-e PDU containing only control information fails, the UE ignores past MAC-e PDUs and configures the MAC-e PDU by updating the control information. Transmit the configured MAC-e PDU. The UE attempts the above process until it receives a response indicating the successful reception of the MAC-e PDU, and continues the above process until the number of retransmissions does not exceed the maximum number of retransmissions. Among them, in particular, when the first MAC-e PDU transmission is included in the number of retransmissions in the above process, the UE can analyze the maximum number of retransmissions to 1.
The above-mentioned control information includes scheduling information such as the UE margin power amount (mobile terminal power headroom), the total amount of data owned by the UE (total E-DCH buffer state), and each channel having data to be transmitted. Includes the ratio of the amount of data corresponding to the channel with the highest priority (highest priority logical channel identifier) or the channel with the highest priority to the total amount of data.
According to another embodiment of the invention, after the UE transmits a MAC-e PDU containing only control information, it receives a response indicating that retransmission is necessary and is the highest indicated by that control information. When data reaches a channel with a higher priority than the data on the priority channel, the UE stops retransmitting the MAC-e PDU and contains the updated control information in the new MAC-e PDU, which is new. Transmit the MAC-e PDU to the base station.
After the UE transmits a MAC-e PDU containing only control information, the UE receives a response requesting re-transmission of the MAC-e PDU, the control information that the UE intends to transmit is updated, and the maximum number of re-transmissions is achieved. If less than the number of retransmissions, the UE retransmits the previously transmitted MAC-e PDU. Otherwise, the UE will abort the retransmission.
The response requesting re-transmission preferably includes a signal indicating that the receiving side has failed to receive the data from the transmitting side without error. The NACK signal is an example of such a signal. If the UE that transmits the MAC-e PDU containing the control information contains other user data, the UE will continue to retransmit for the previous MAC-e PDU.
If the channel condition is not good, the UE will continue to transmit the previously transmitted MAC-e PDU for more specific reception on Node B. Because of this, when the control information for a MAC-e PDU containing only the control information changes, the UTRAN either continuously retransmits the previous MAC-e PDU to the UE, or the most up-to-date control information. Tells you if you want to set up and send a new MAC-e PDU. Therefore, this is achieved using the setup directive.
Therefore, according to the present invention, it becomes possible to quickly transmit new control information to a base station in a mobile communication system using the HARQ technique.
FIG. 8 is a block diagram of a mobile communication device 400 such as a mobile telephone as an example for performing the method of the present invention. The mobile communication device 400 stores a processing unit 410 such as a microprocessor or a digital signal processor, an RF module 435, a power management module 406, an antenna 440, a battery 455, a display 415, a keypad 420, a flash memory, ROM or SRAM, and the like. Includes unit 430, speaker 445 and microphone 450.
The user inputs instruction information such as a telephone number by pressing a button on the keypad 420 or activating voice using a microphone 450, for example. The processing unit 410 receives and processes instruction information for performing an appropriate function such as dialing a telephone number. Operational data is obtained from the storage unit 430 to perform its function. In addition, the processing unit 410 can display instructions and operation information on the display 415 for the user's reference and convenience.
The processing unit 410 issues instruction information to the RF module 435 in order to initialize communication such as transmission of a radio signal including voice communication data, for example. RF module 435 includes a receiver and a transmitter for receiving and transmitting radio signals. Antenna 440 activates the transmission and reception of radio signals. Upon receiving the radio signal, the RF module 435 can transmit and convert each signal to the baseband for processing by the processing unit 410. Each processed signal is converted into, for example, audible or readable information output through speaker 445.
The processing unit 410 receives the first and second data from the upper layer and generates the first and second data blocks containing the information related to the first and second data transmitted to the network. Be adjusted. The processing unit 410 is also tuned to control the transmitter of RF module 435 to transmit the first and second data blocks to the network. The receiver of RF module 435 is tuned to receive each signal from the network.
Although described in the context of mobile communications, the invention is used within any wireless communication system that uses mobile devices, such as PDAs and laptops with wireless communication devices. Also, the use of specific terms to describe the invention should not limit the scope of the invention to specific types of wireless communication systems such as UMTS. The present invention is also applicable to other wireless communication systems that use different wireless interfaces and / or physical layers, such as TDMA, CDMA, FDMA, WCDMA.
Each suitable embodiment is embodied as a method, apparatus or product that uses standard programming and / or engineering techniques to produce software, firmware, hardware, or any combination thereof. The term "manufactured" as used herein refers to hardware logic (ie, integrated circuit chips, field programmable gate arrays (FPFAs), application specific integrated circuits (ASICs), etc.), Computer-readable media (ie, magnetic storage media (ie, hard disk drives, floppy® disks, tapes, etc.), optical storage (CD ROMs, optical disks, etc.), volatile and non-volatile memory devices (ie, EEPROMs, etc.) Refers to the code or logic embodied in ROMs, PROMs, RAMs, DRAMs, SRAMs, firmware programmable logic, etc.).
The code in a computer-readable medium is approached and executed by a processor. The code embodying each suitable embodiment can also be accessed from a transmission medium or a file server on the network. In this case, the product in which the code is embodied includes transmission media such as network transmission lines, radio transmission media, signals propagated through space, radio waves, infrared signals, and the like. Of course, those skilled in the art will recognize that many modifications to this configuration are possible without departing from the scope of the present invention, and the products are known for their related arts. Any information can be included, including the medium.
The examples and advantages described above are merely exemplary and should not be analyzed as limiting the invention. The present invention can be easily applied to other types of devices. The description of the present invention is exemplary and does not limit the scope of the claims. Many alternatives, changes and variations are apparent to those skilled in the art within the relevant technology. In the claims, the means-plus-function clause is described herein, such as the equivalent structure as well as the cited function and structural equivalent. Intended to handle the structure.
The present invention can be readily applied to all types of equipment, including mobile terminals and base stations.
<figref num="1">It is a block diagram of the network structure of UMTS.</figref><figref num="2">It is a structural diagram of a wireless interface protocol between UE and UTRAN.</figref><figref num="3">It is a figure which showed the structural example of DCH and E-DCH.</figref><figref num="4">It is a figure which showed the protocol for E-DCH.</figref><figref num="5">It is a figure which showed the method of communicating the control information in the mobile communication system which concerns on the related prior art.</figref><figref num="6A">It is a figure which showed the method of communicating the control information which concerns on one Example of this invention.</figref><figref num="6B">It is a figure which showed the method of communicating the control information which concerns on another Example of this invention.</figref><figref num="7">It is a figure which showed the method of communicating the control information which concerns on another Example of this invention.</figref><figref num="8">It is a block diagram of the mobile communication apparatus which concerns on one Example of this invention.</figref>
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Every citation, both ways
| Document | Relation | Office |
|---|---|---|
| JP2005073276A | Cites | Japan |
| WO03096617A1 | Cites | World Intellectual Property Organization (WIPO) |
| JP2004080165A | Cites | Japan |
29 members in 12 offices
Members29
| Document | Office | Kind | |
|---|---|---|---|
| KR20060115037A | Republic of Korea | A | |
| AU2006241614A1 | Australia | A1 | |
| WO2006118428A2 | World Intellectual Property Organization (WIPO) | A2 | |
| US2006268822A1 | United States of America | A1 | |
| TW200644547A | Taiwan Province of China | A | |
| EP1878291A2 | European Patent Office (EPO) | A2 | |
| MX2007013513A | Mexico | A | |
| WO2006118428A3 | World Intellectual Property Organization (WIPO) | A3 | |
| CN101176372A | China | A | |
| JP2008541546A | Japan | A | |
| ZA200709391B | South Africa | B | |
| RU2007144702A | Russian Federation | A | |
| US7715360B2 | United States of America | B2 | |
| US2010157932A1 | United States of America | A1 | |
| US2010165944A1 | United States of America | A1 | |
| BRPI0612357A2 | Brazil | A2 | |
| RU2408168C2 | Russian Federation | C2 | |
| AU2006241614B2 | Australia | B2 | |
| EP1878291A4 | European Patent Office (EPO) | A4 | |
| US7978678B2 | United States of America | B2 | |
| US7978679B2 | United States of America | B2 | |
| US2011235611A1 | United States of America | A1 | |
| KR101073915B1 | Republic of Korea | B1 | |
| EP2391043A2 | European Patent Office (EPO) | A2 | |
| CN101176372B | China | B | |
| JP5113740B2This record | Japan | B2 | |
| EP2391043A3 | European Patent Office (EPO) | A3 | |
| TWI429249B | Taiwan Province of China | B | |
| US8681733B2 | United States of America | B2 |
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Numbers
- Publication
- 5113740
- Application
- 2008509939
Titles2
- Japanese
- 移動通信システムで制御情報を通信する方法
- English
- How to communicate control information with a mobile communication system
Classification
- CPC, 10
- H04L1/189
- H04L1/1812
- H04L47/2441
- H04W52/367
- H04W72/0473
- H04W28/02
- H04W72/569
- H04W72/23
- H04L47/10
- H04W8/04
- IPC, 4
- H04W72 02
- H04W72 04
- H04W72 10
- H04W72 12
