Method and apparatus for securing quality of communication service to mobile terminal
Abstract
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Expired 18 August 2024, 2.1 years ago.
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36 claims: 28 independent, 8 dependent
- 1無線通信システムにおいて、ポイントツーマルチポイントサービスに関する品質情報の通信方法であって、 前記ポイントツーマルチポイントサービス用のポイントツーマルチポイント無線ベアラーが設定されると、RRC(Radio Resource Control)アイドルモードにあるユーザ設備(UE;User Equipment)が、共通トラフィックチャネルを介してネットワークから前記ポイントツーマルチポイントのデータを受信するステップと、 RRCアイドルモードにあるユーザ設備が、前記受信された前記データのサービス品質を測定するステップと、 RRCアイドルモードにあるユーザ設備が、前記受信されたデータのサービス品質の測定に応答して、共通の制御チャネルを介して測定結果パラメータを伝送するステップと を含 み、 前記測定結果パラメータは、RRC連結要求メッセージを用いて、前記ネットワークに伝送される ことを特徴とするサービス品質情報通信方法。
- 2前記共通トラフィックチャネルはポイントツーマルチポイント・トラフィックチャネルであることを特徴とする請求項1に記載のサービス品質情報通信方法。
- 3前記受信された前記データのサービス品質を測定するために、RRCアイドルモードにあるユーザ設備が、前記ネットワークから測定要求を受信するステップを更に含むことを特徴とする請求項1に記載のサービス品質情報通信方法。
- 4前記測定要求は、報告周期または報告対象に関連した測定モードの少なくとも1つを含む測定パラメータを含むことを特徴とする請求項3に記載のサービス品質情報通信方法。
- 5前記受信するステップ、測定するステップ、伝送ステップを実施する間に、前記ユーザ設備の前記RRCアイドルモードを維持することを特徴とする請求項1に記載のサービス品質情報通信方法。
- 6前記ネットワークとの専用制御信号リンクが存在しない場合に、前記RRCアイドルモードが維持されることを特徴とする請求項5に記載のサービス品質情報通信方法。
- 7前記測定結果パラメータは、少なくとも、周期的にあるいはイベントトリガーに応答して伝送されることを特徴とする請求項1に記載のサービス品質情報通信方法。
- 8前記イベントトリガーは前記ネットワークにより設定された条件を含むことを特徴とする請求項7に記載のサービス品質情報通信方法。
- 9前記RRC連結要求メッセージは、前記ポイントツーマルチポイントサービス以外の他のサービスが必要であるか、他のサービスが必要でないかを表す伝送原因を含むことを特徴とする請求項 1 に記載のサービス品質情報通信方法。
- 10無線通信システムにおいて、ポイントツーマルチポイントサービス品質情報通信方法であって、 前記ポイントツーマルチポイントサービス用のポイントツーマルチポイント無線ベアラーが設定されると、共通トラフィックチャネルを介してRRCアイドルモードにある少なくとも一つの移動体端末にデータを伝送するステップと、 前記共通トラフィックチャネルを介して伝送された前記データのサービス品質測定に応答して、前記RRCアイドルモードにある移動体端末から共通の制御チャネルを介して測定結果パラメータを受信するステップと を含 み、 前記測定結果パラメータは、RRC連結要求メッセージを用いて、RRCアイドルモードにある前記少なくとも一つの移動体端末から受信される ことを特徴とするサービス品質情報通信方法。
- 11前記共通トラフィックチャネルはポイントツーマルチポイント・トラフィックチャネルであることを特徴とする請求項 10 に記載のサービス品質情報通信方法。
- 12前記共通トラフィックチャネルを介して受信された前記データについてのサービス品質の測定を要求するために、前記少なくとも一つの前記RRCアイドルモードにある移動体端末に測定要求を伝送するステップを更に含むことを特徴とする請求項 10 に記載のサービス品質情報通信方法。
- 13前記測定要求は、報告周期または報告対象に関連した測定モードの少なくとも1つを含んだ測定パラメータを含むことを特徴とする請求項 12 に記載のサービス品質情報通信方法。
- 14前記測定結果パラメータは周期的にあるいはイベントトリガーに応答して伝送されることを特徴とする請求項 10 に記載のサービス品質情報通信方法。
- 15前記イベントトリガーは前記ネットワークにより設定された条件を含むことを特徴とする請求項 14 に記載のサービス品質情報通信方法。
- 16前記RRCアイドルモードにある前記少なくとも一つの移動体端末から受信された伝送原因を処理するステップと、 前記ポイントツーマルチポイントサービス以外の前記サービスのための連結セットアップメッセージと連結拒否メッセージのうちいずれか一つを伝送するステップと を更に含み、前記RRC連結要求メッセージは、前記ポイントツーマルチポイントサービス以外の他のサービスが必要であるか、他のサービスが必要でないかを表す前記伝送原因を含むことを特徴とする請求項 10 に記載のサービス品質情報通信方法。
- 17無線通信システムにおいて、ポイントツーマルチポイントサービス品質情報を通信するための無線通信装置であって、 ネットワークからデータを受信し、前記ネットワークにサービス品質測定結果パラメータを伝送するRFモジュールと、 前記ネットワークからデータを受信し、前記ネットワークにサービス品質測定結果パラメータを伝送するアンテナと、 ユーザが情報を入力するキーパッドと、 サービス品質測定結果パラメータを格納するストレージと、 前記ユーザに情報を表示するディスプレイと、 前記ポイントツーマルチポイントサービス用のポイントツーマルチポイント無線ベアラーが設定されると、共通トラフィックチャネルを介して前記データを受信し、サービス品質測定結果パラメータを生成するために前記共通トラフィックチャネルを介して受信された前記ポイントツーマルチポイントサービスデータの前記サービス品質を測定し、無線通信装置がRRCアイドルモードにある時、共通の制御チャネルを介して前記ネットワークに前記測定結果パラメータを伝送する、プロセッシングユニットと を 備え、 前記プロセッシングユニットは、RRC連結要求メッセージを用いて前記測定結果パラメータを伝送する機能を更に実施する ことを特徴とする無線通信装置。
- 18前記共通トラフィックチャネルはポイントツーマルチポイント・トラフィックチャネルであることを特徴とする請求項 17 に記載の無線通信装置。
- 19前記プロセッシングユニットは、前記共通トラフィックチャネルを介して受信したデータの前記サービス品質を測定するために前記ネットワークから測定要求を受信する機能を実施し、前記測定要求は測定パラメータを含むことを特徴とする請求項 17 に記載の無線通信装置。
- 20前記測定パラメータは、報告周期または測定対象と関連した少なくとも一つの測定モードを有することを特徴とする請求項 19 に記載の無線通信装置。
- 21前記プロセッシングユニットは周期的にまたはイベントトリガーに応答して、前記ネットワークに前記サービス品質測定結果パラメータを伝送することを特徴とする請求項 17 に記載の無線通信装置。
- 22前記イベントトリガーは、前記ネットワークにより設定された条件を含むことを特徴とする請求項 21 に記載の無線通信装置。
- 23前記RRC連結要求メッセージは、前記ポイントツーマルチポイントサービス以外の他のサービスが必要であるか、他のサービスが必要でないかを表す伝送原因を含むことを特徴とする請求項 17 に記載の無線通信装置。
- 24RRCアイドルモードにある前記無線通信装置の前記プロセッシングユニットは前記受信するステップ、測定するステップ、伝送ステップを実施する間、前記RRCのアイドルモードを維持することを特徴とする請求項 17 に記載の無線通信装置。
- 25前記ネットワークとの専用制御信号リンクがない場合、前記プロセッシングユニットは前記RRCアイドルモードを維持することを特徴とする請求項 24 に記載の無線通信装置。
- 26無線通信システムにおいて、ポイントツーマルチポイントサービスに関連したサービス品質情報通信を実施するためのネットワークであって、 RRCアイドルモードにある、少なくとも一つの移動体端末にデータを伝送する送信器と、 前記RRCアイドルモードにある、少なくとも一つの移動体端末からサービス品質測定結果パラメータを受信する受信器と、 前記ポイントツーマルチポイントサービス用のポイントツーマルチポイント無線ベアラーが設定されると、共通トラフィックチャネルを介して前記データを伝送し、共通の制御チャネルを介してRRCアイドルモードにある前記少なくとも1つの移動端末から前記測定結果パラメータを受信する制御器と を含み、 前記測定結果パラメータは、前記共通トラフィックチャネルを介して前記ポイントツーマルチポイントサービス用に伝送された前記データのサービス品質測定に対する応答として受信され 、 前記制御器は、RRC連結要求メッセージを用いて、RRCアイドルモードにある前記少なくとも一つの移動体端末から前記測定結果パラメータを更に受信する ことを特徴とするネットワーク。
- 27前記共通トラフィックチャネルはポイントツーマルチポイント・トラフィックチャネルであることを特徴とする請求項 26 に記載のネットワーク。
- 28前記制御器は、RRCアイドルモードにある前記少なくとも一つの移動体端末に測定要求を伝送し、前記共通トラフィックチャネルを介して前記ポイントツーマルチポイントサービス用に伝送された前記データのサービス品質の測定を要求する機能を更に実施することを特徴とする請求項 26 に記載のネットワーク。
- 29前記測定要求は、報告周期または測定対象と関連した少なくとも一つの測定モードを有する測定パラメータを含むことを特徴とする請求項 28 に記載のネットワーク。
- 30前記制御器は前記少なくとも一つの移動体端末から周期的に、またはイベントトリガーに応答して、前記測定結果パラメータをさらに受信することを特徴とする請求項 26 に記載のネットワーク。
- 31前記イベントトリガーは前記ネットワークにより設定された条件を含むことを特徴とする請求項 30 に記載のネットワーク。
- 32前記RRC連結要求メッセージは、前記ポイントツーマルチポイントサービス以外の他のサービスが必要であるか、他のサービスが必要でないかを表す伝送原因を含み、前記制御器は、RRCのアイドルモードにある前記少なくとも1つの移動体端末から受信した前記伝送原因をさらに有し、連結セットアップメッセージまたは連結拒否メッセージのうち、いずれか一つを伝送することを特徴とする請求項 26 に記載のネットワーク。
- 33前記ポイントツーマルチポイントサービスは音声サービスとは異なるパケットデータサービスであることを特徴とする請求項1記載の方法。
- 34前記ポイントツーマルチポイントサービスは音声サービスとは異なるパケットデータサービスであることを特徴とする請求項 10 記載の方法。
- 35前記ポイントツーマルチポイントサービスは音声サービスとは異なるパケットデータサービスであることを特徴とする請求項 17 記載の無線通信装置。
- 36前記ポイントツーマルチポイントサービスは音声サービスとは異なるパケットデータサービスであることを特徴とする請求項 26 記載のネットワーク。
Independent claims36
83 paragraphs, as filed
The present invention relates to a method and an apparatus for guaranteeing the quality of service of a packet data service provided in a communication system.
The Universal Mobile Telecommunications System (UMTS) is a third-generation mobile communication system that has evolved from the European standard GSM (Global System for Mobile communications) system. UMTS aims to provide enhanced mobile communications services based on GSM core networks and wideband code division multiple access technology.
Figure 1 shows a traditional UMTS network structure. The mobile terminal 2, that is, the user equipment (UE), is connected to the core network 4 through the UTRAN (UMTS Terrestrial Radio Access Network) 6. UTRAN6 configures, maintains, and manages wireless access bearers for communication between UE2 and core network 4 to meet the end-to-end quality of service requirements.
UTRAN6 includes multiple radio network subsystems 8, each of which includes one radio network controller (RNC) 10 for multiple base stations 12, or "node B". The RNC10 linked to the given base station 12 is for allocating and managing the common resources provided to any number of UE2s in one cell. RNC10 controls traffic load, cell congestion, acceptance of new radio links, and more. Each node B12 receives an uplink signal from UE2 and transmits a downlink signal to UE2. Each node B12 functions as an access point that connects UE2 to UTRAN6, while RNC10 functions as an access point that connects the corresponding node B to core network 4.
Services provided to a particular UE 12 include circuit-switched services such as voice and packet-switched services such as web browsing. In a communication system that supports circuit switching services, the RNC10 is connected to the Mobile Switching Center (MSC) 12 of the core network 4, and the MSC12 is requested by or from an external network. Gateway MSC (GMSC) that manages voice call access Connected to Gateway MSC) 14. The packet switching service is provided by SGSN (Serving GPRS (General Packt Radio Service) Support Node) 16 and GGSN (Gateway GPRS Support Node) 18 of the core network 4. GGSN18 manages connectivity to the Internet or other external packet-switched networks, and SGSN16 assists in packet communication to RNC10. An example of a packet switching service is MBMS (Multimedia Broadcast / Multicast Service), which provides MBMS data from core network 4 to UE2.
The air interface between UE2 and UTRAN6 includes an RRC (Radio Resource Control) layer (not shown) for configuring, reconfiguring, and disengaging wireless bearers. A wireless bearer is a service that transmits data between UE2 and RNC10 of UTRAN6, and is a point-to-point wireless bearer or a point-to-point wireless bearer depending on the wireless resource management status considering the number of UEs in the cell where a specific MBMS is provided. Set as a point-to-multipoint wireless bearer.
UE2 is said to be in RRC concatenated mode when the RRC layer of the UE and the RRC layer of the corresponding RNC10 are concatenated to provide bidirectional transmission of RRC messages. In the absence of RRC concatenation, UE2 is said to be in RRC idle mode.
When a point-to-multipoint radio bearer is configured to provide a particular service in a particular cell, UTRAN6 instructs some UE2s in the cell to enter RRC concatenated mode and the remaining UE2s in RRC. Instructs to remain in idle mode. For example, after receiving an RRC concatenation request from UE2 trying to receive a specific service via the uplink common control channel, UTRAN6 transmits an RRC concatenation setup message or RRC concatenation refusal message to UE2 depending on the radio resource management status.
UE2 that receives the RRC concatenation setup message is controlled to receive the corresponding service in RRC concatenation mode, and UE2 that receives the RRC concatenation refusal message is controlled to receive the corresponding service in RRC idle mode. UE2 that has completed RRC concatenation to UTRAN6 can send various messages under the control of UTRAN.
FIG. 2 illustrates a conventional method 50 performed between UTRAN6 and UE2 where RRC concatenation is set up. UTRAN6 receives an RRC concatenation request (S51) from the corresponding UE2 requesting an RRC concatenation for a particular service. In response, UTRAN6 transmits an RRC concatenated setup message to UE2.
When RRC concatenation is set, the transmission environment and reception environment are set up for each RRC concatenation setup message received from UTRAN6, and UE2 transmits the RRC concatenation setup completion message (S53) to UTRAN6. UE2 and UTRAN6 then implement a predetermined procedure that allows UE2, currently in RRC concatenation mode, to receive MBMS data (S54).
To more effectively manage configured wireless bearers and ensure minimal quality of service (QoS) for a particular MBMS, UTRAN6 now measures the quality of data received from UTRAN. Transmit the measurement request message (S55) requested to UE2. After measuring the quality of the received data, UE2 reports the result to UTRAN6 (S56).
As reported by UE2, UTRAN6 adjusts variables assigned to the service, such as coding and power levels. For example, if the report from UE2 shows an excessive error rate in the MBMS data, UTRAN6 allocates more transmission power to the MBMS, while if the report from UE2 indicates that the signal strength is too high, UTRAN6 Reduce power.
The measurement request message tells UE2 how often or at what interval to measure a particular parameter to determine the current conditions of data transmission, and when to report the measurement results to UTRAN6. When the conditions for reporting the measurement result are met, UE2 transmits the measurement report (S56) to UTRAN6 using the dedicated control channel. The measurement report includes the measurement results for the corresponding service.
Any UE2 that sets up a point-to-point wireless bearer and receives a corresponding service can provide a measurement report to UTRAN6. However, when a point-to-multipoint radio bearer is configured, UE2 is selectively RRC-connected based on the availability of dedicated control channels. Therefore, UE2 can provide feedback information to UTRAN6 based on the received data packet, such as QoS information, only when RRC concatenation to UTRAN6 is set.
When MBMS is provided in the cell through a point-to-multipoint wireless bearer, UE2 receiving service data in RRC idle mode is not RRC concatenated and therefore makes a measurement of the quality of the received data. Or, they are not instructed to provide the corresponding measurement report to UTRAN6. Therefore, although the service from UTRAN6 is provided to RRC idle UE2, it is not possible to notify UTRAN of the quality of the service, and the minimum service quality cannot be guaranteed.
Therefore, there is a need for methods and devices that enable mobile terminals that receive services in RRC idle mode to provide the network with information about the quality of service received. The present invention addresses such and other needs.
<p> The present invention relates to a method and an apparatus for guaranteeing the quality of service of a packet data service provided by a communication system. Specifically, an object of the present invention is to provide a network with information on the quality of service received by a mobile terminal that receives a packet data service in RRC idle mode.</p>
<p> Additional features and advantages of the present invention should be disclosed in the following description, some of which should be self-evident from the following description or should be learned by practicing the present invention. The object and other advantages of the present invention should be realized and obtained not only by the accompanying drawings but also by the structure specifically expressed in the description and claims described in the present specification.</p><p> In wireless communication systems that provide packet data services to achieve these and other advantages for the purposes of the present invention, as specifically shown and broadly described herein, a downlink common channel. When providing a specific communication service to a plurality of mobile terminals via the above, the present invention is realized as a method and a device for providing a minimum quality to a mobile terminal receiving a specific communication service in RRC idle mode. ..</p><p> In one aspect of the invention, there is provided a method of communicating service quality information about a service in a wireless communication system. This method is used for the step of receiving data from the network via the common traffic channel, the step of measuring the service quality of the data received through the common traffic channel, and the service quality measurement of the data received through the common traffic channel. It involves the step of transmitting the measurement result parameters to the network via the control channel in response.</p><p> The common traffic channel can be a point-to-multipoint traffic channel. Further, the control channel may be a common control channel. In addition, the service can be a point-to-multipoint service.</p><p> The method includes the step of receiving a measurement request from the network to measure the service quality of data received over a common traffic channel, the measurement request including measurement parameters. The measurement parameters include the measurement mode and / or the object to be measured, and the measurement mode should be associated with the reporting cycle.</p><p> This method is carried out while the idle mode is maintained. Preferably, idle mode is maintained in the absence of a dedicated control signal link with the network.</p><p> Measurement result parameters can be transmitted to the network periodically and / or in response to event triggers. Preferably, the event trigger occurs when the conditions set by the network are met.</p><p> The measurement result parameters may be transmitted to the network when the connection with the network is started. Also, a transmission cause indicating whether the network connection was initiated to receive other non-MBMS services or to transmit the measurement result parameters may be transmitted together with the measurement result.</p><p> In another aspect of the invention, there is provided a method of communicating service information quality about a service in a wireless communication system. This method involves transmitting data to at least one mobile terminal via a common traffic channel and receiving measurement result parameters from the mobile terminal regarding service quality measurement of data transmitted via the common traffic channel. Including.</p><p> The common traffic channel can be a point-to-multipoint traffic channel. Further, the control channel may be a common control channel. In addition, the service can be a point-to-multipoint service.</p><p> This method is preferably performed while the mobile terminal is in idle mode. The method includes a step of transmitting a measurement request requesting a service quality measurement of data received via a common traffic channel to a mobile terminal, and the measurement request includes measurement parameters. The measurement parameters include the measurement mode and / or the object to be measured, and the measurement mode is preferably associated with the reporting cycle.</p><p> Measurement result parameters can be received from the mobile terminal periodically and / or in response to event triggers. Preferably, the event trigger is a condition set by the network.</p><p> When the mobile terminal initiates the connection with the network, the measurement result parameters are received. Also, a transmission cause is received, processed, and concatenated with the measurement result parameters to determine if the network connection was initiated only to request other non-MBMS services or to transmit the measurement result parameters. A setup message or a concatenation refusal message may be transmitted.</p><p> Another aspect of the invention provides a mobile communication device that communicates service quality information about services in a wireless communication system. Such mobile communication devices include RF modules, antennas, keypads, storage units, displays and processing units.</p><p> The antenna and RF module receive data from the network and transmit measurement result parameters regarding the quality of service of the received data to the network. The keypad is for letting the user enter information. The display conveys information to the user. The storage unit stores measurement result parameters related to the service quality of the received data. The processing unit implements the method of the invention to receive data over a common traffic channel, measure the service quality of the data received over the common traffic channel, generate measurement result parameters, and generate measurement result parameters. Is transmitted to the network via the control channel.</p><p> In another aspect of the invention, a network is provided that communicates service quality information about services in a wireless communication system. The network includes transmitters, receivers and controls.</p><p> The transmitter transmits data to at least one mobile terminal. The receiver receives the measurement result parameters from the mobile terminal. The controller implements the method of the invention to transmit data over a common traffic channel and to obtain measurement result parameters through the control channel in response to a service quality measurement of the data transmitted over the common traffic channel. Receive.</p><p> It is understood that the above description and the following detailed description of the present invention are all exemplary and are intended to provide a more specific description of the invention claimed in the claims. Should be.</p><p> Those skilled in the art should also understand that various modifications and variations of the present invention are possible. Accordingly, the present invention covers the modifications and modifications provided within the claims and their equivalents.</p>
<p> According to the present invention, the service quality of the packet data service provided to the communication system can be improved by allowing the mobile terminal receiving the packet data service in the RRC idle mode to provide information on the quality of the received service to the network. Guarantee methods and equipment can be provided.</p>
The present invention provides the service quality of a packet data service provided by a communication system by allowing a mobile terminal receiving the packet data service in RRC idle mode to provide the network with information about the quality of the received service. Regarding guarantee methods and equipment. Although the present invention describes a mobile terminal, the present invention goes into an idle mode in which some of the communication devices to which the service is provided are excluded from providing information about the quality of the received service to the network. In the communication system, it can be used whenever it is required to guarantee the service quality of the packet data service provided.
Embodiments of the present invention will be described in detail with reference to the accompanying drawings. Wherever possible, references to the same or similar parts are given the same reference number throughout the entire drawing.
The present invention states that a communication system that provides packet data services such as MBMS to a plurality of mobile terminals 2 or UEs guarantees the minimum quality of service for mobile terminals that receive packet data in RRC idle mode. It is characterized by points. The present invention can also be applied to packet data services other than MBMS. When a point-to-multipoint radio bearer is configured for a particular service, the present invention provides quality of service for each UE2 of multiple UE2s attempting to receive a particular service, including UE2 in RRC idle mode. Can be guaranteed.
In the present invention, the system side or network such as UTRAN6 can receive the measurement control information to UE2 in idle mode via the downlink common control channel in order to receive the measurement result performed by UE2 in idle mode more effectively. I will provide a. The measurement control information includes measurement-related parameters that indicate how UE2 in idle mode makes measurements, what measurements are made, and when UE2 informs UTRAN6 of a particular measurement result.
For example, UTRAN6 can request UE2 to report by measurement control information whether the error rate of the data block received by UE2 exceeds an acceptable limit. The requested measurement determines if the strength of the received signal is greater than a predetermined value.
The measurement control information is provided by the measurement control message. When UTRAN6 generates the measurement control message, the service quality information for a specific service transmitted by "session start" from the core network 4 is used. Specifically, UTRAN 6 calculates the minimum service quality information that should be guaranteed for a specific service based on the service quality information transmitted from the core network 4, and includes measurement control information based on the calculation. Generate a measurement control message and transmit the measurement control message to UE2.
If UE2 in idle mode receives a specific service of inferior quality to the minimum service quality, UE2 puts quality status information for the service received using the uplink common control channel, for example, in a measurement report message. And transmit to UTRAN6. UTRAN6 controls resources based on quality status information received from UE2 to ensure minimal quality of service for UE2 in idle mode.
Frequent transmission of measurement result messages to UTRAN6 increases uplink channel congestion, so UTRAN6 provides UE2 with parameters for measurement performance and conditions for transmission of measurement report messages. These parameters can include a timer value that represents the minimum interval between transmissions of the measurement report message, a probability value for transmitting the measurement report message, and a back-off time value.
For example, when receiving a probability value and a backoff time value for transmitting a measurement report message as a value between 0 and 1, UE2 trying to transmit the measurement report message is, for example, any number between 0 and 1. To generate. UE2 transmits the measurement report message only if the generated number is less than or greater than the received probability value. If the generated number fails to transmit the measurement report message, UE2 will generate any other number after the time due to the backoff time received and compare any new number to the probability value received. Determine again whether to transmit the measurement report message.
In the present invention, UE2 receiving a specific MBMS in idle mode measures the quality of MBMS data provided by UTRAN6 and transmits the measured quality information to UTRAN6 via the uplink common control channel. Specifically, when UE2 receives measurement control information from UTRAN6, UE2 measures the quality of the service provided using the measurement control information, and the measured result is set for transmission of measurement result information. If the above conditions are met, the measurement result is transmitted to UTRAN6 via the uplink common control channel.
Even if UE2 fails to receive the measurement control information or the measurement control information is not transmitted from UTRAN6, UE2 provides the measurement quality information that indicates that the quality of the received service is poor. It can be transmitted to UTRAN6 via a channel. UE2 determines that the quality of service received is poor and transmits the measured quality information without the UTRAN6 requesting the measured quality information.
If the requirements for information transmission are met, UE2 in idle mode immediately transmits quality information measured for service or information about service quality measurement to UTRAN6 via the uplink common control channel. Therefore, the service quality can be displayed quickly and the minimum quality of the received service can be effectively guaranteed.
On the other hand, instead of immediately transmitting quality of service information or information on measuring service quality to UTRAN6, UE2 can transmit such information when setting up an RRC connection with UTRAN6. UE2 in idle mode can individually transmit quality information or measurement results via the uplink common control channel, thereby reducing the cyclically increasing load on the uplink common control channel.
FIG. 3 is a diagram showing a service quality assurance method 100 according to the first embodiment of the present invention. According to the method 100, the UTRAN 6 can receive the measurement result regarding the quality of service received by the UE 2 in the idle mode, thereby performing the radio resource management.
Referring to Figure 3, UTRAN6 receives an MBMS session start message from core network 4 (S102). Core Network 4 includes the MBMS session start message with the service identifier (ID) of a particular MBMS and quality of service (QoS) information about that service. A specific MBMS service identifier (ID) is included in each message transmitted between UE2, UTRAN6, and core network 4 to identify the service associated with the message.
Upon receiving the MBMS session start message from core network 4, UTRAN6 sends an MBMS notification message to multiple UE2s in the cell to inform UE2 that data transmission for a particular MBMS is imminent. UTRAN6 implements MBMS notification and counting functions, sets up a wireless bearer to provide MBMS, and initiates MBMS data transmission to UE2 in the cell (S104).
UTRAN6 implements a counting function to determine the number of UE2s in a cell that wish to receive a particular MBMS through MBMS notifications. The counting function is used to determine whether a wireless bearer that provides a particular MBMS should be configured as point-to-multipoint or point-to-point.
UTRAN6 internally sets a threshold for selecting the MBMS radio bearer. If the number of UE2s in the cell that want to receive a particular MBMS is less than the threshold, UTRAN6 configures a point-to-point MBMS radio bearer. If the number of UE2s in the cell wishing to receive a particular MBMS is greater than the threshold, UTRAN6 configures a point-to-multipoint MBMS radio bearer.
When a point-to-point bearer is set for a particular service, all UE2s wishing to receive that particular service enter RRC concatenation mode. However, if a point-to-multipoint wireless bearer is configured for a particular service, UE2 in idle mode can receive the service through the point-to-multipoint wireless bearer, so all UE2s wishing to receive that service. Does not have to be in RRC concatenated mode.
Following the start of transmission of MBMS data, UTRAN6 transmits a measurement control message for the service to UE2, for example an MBMS measurement control message. MBMS control messages are transmitted with MBMS data via MBMS control channels such as MCCH or broadcast control channels such as BCCH (S106). The MBMS measurement control message contains measurement-related parameters, instructing UE2 to perform specific measurements of a specific item at specific intervals, and informing UE2 when to transmit the measurement results to UTRAN6.
For example, UTRAN6 transmits an MBMS measurement control message instructing UE2 to measure the received signal strength of a particular MBMS and to perform the measurement within each frame. In addition, the MBMS measurement control message instructs UE2 to transmit the measured information when a certain period of time elapses while the received MBMS data signal strength remains at a level below a specific value.
Therefore, measurement control messages provide the various types of information that UE2 needs to make measurements related to the quality of incoming service. In addition, if the measured value satisfies a specific condition while UE2 is performing the measurement of the reception service, the measurement control message instructs UE2 to transmit the measurement result.
UTRAN6 configures or generates measurement control messages and measurement-related parameters by taking advantage of quality of service (QoS) information provided by core network 4 through MBMS session start messages and / or taking into account the UTRAN radio resource configuration. To do. UTRAN6 informs UE2 about the minimum quality of service to be guaranteed by means of measurement control messages.
When the UE2 receives the measurement control message, it performs the measurement requested for the receiving service according to the information contained in the measurement control message and determines whether or not the measurement result should be transmitted (S108). Specifically, UE2 checks whether the conditions necessary for transmitting the measurement result to UTRAN6 are satisfied.
If the conditions for transmitting the measurement result are satisfied, UE2 transmits a measurement report message containing the measurement result to the receiving service to UTRAN6 (S110). If the reporting conditions are not met, UE2 will not transmit the measurement report message to UTRAN6. UE2 receiving MBMS in idle mode transmits a measurement report message including the measurement result to UTRAN6 via the uplink common control channel.
If the measurement control message receives information about the minimum quality of service that should be guaranteed by UTRAN6, UE2 compares the quality of the received service with the minimum quality of service that should be guaranteed. If the quality of service received by UE2 is better than the minimum quality of service that should be guaranteed, UE2 reports to UTRAN6. For example, UE2 reports to UTRAN6 about the error rate of the received data block.
UTRAN6 manages radio resources by using the measurement result information contained in the measurement report message (S112). For example, if the measurement result information indicates that the quality of the receiving service is poor, UTRAN6 increases the power assigned to the service.
FIG. 4 is a diagram showing a method 150 for guaranteeing service quality according to the second embodiment of the present invention. The method 150 differs from the first embodiment in that the core network 4 does not include quality of service (QoS) information about the service in the MBMS session start message (S512). Therefore, UTRAN6 configures or generates measurement control messages and measurement-related parameters (S156) in consideration of the UTRAN radio resource configuration.
FIG. 5 is a diagram showing a method 200 for guaranteeing service quality according to the third embodiment of the present invention. The method 200 facilitates quality of service assurance for a particular service provided to idle-mode UE2 if UTRAN6 does not provide the information needed to measure the particular quality of service.
Referring to FIG. 5, UTRAN6 receives the MBMS session start message (S202) from core network 4. Core Network 4 includes service-related specific MBMS service identifier (ID) and quality of service (QoS) information in the MBMS session start message.
When UTRAN6 receives the MBMS session start message from core network 4, it transmits an MBMS notification message to multiple UE2s in the cell to notify UE2 that the data transmission of a specific MBMS is imminent. UTRAN6 implements MBMS notification and counting functions, sets up a wireless bearer to provide MBMS, and initiates MBMS data transmission to UE2 in the cell (S204).
UTRAN6 performs a counting function by MBMS notification to determine the number of UE2s in a cell that wish to receive a particular MBMS. The counting function is used to determine whether a wireless bearer providing a particular MBMS should be point-to-multipoint or point-to-point.
UTRAN6 internally sets a threshold for selecting the MBMS radio bearer. If the number of UE2s in the cell wishing to receive a particular MBMS is less than the threshold, UTRAN6 sets up a point-to-point MBMS radio bearer. If the number of UE2s in the cell wishing to receive a particular MBMS is greater than the threshold, UTRAN6 sets up an MBMS radio bearer.
UE2 continues to check the reception quality of the reception service (S206). If the reception quality of the reception service is determined to be poor, UE2 transmits a reception status report message including the determined quality status to UTRAN6 via the uplink common control channel (S208).
For example, UE2 transmits a receive status message to UTRAN6 that represents the receive quality status as the received MBMS data block error rate or receive signal strength. When performing a reception quality check on the received MBMS, errors frequently occur in the data blocks received during the specified time, the number of errors in the data blocks exceeds the specified number, or reception is performed. If the received signal strength of the received service is below a predetermined level, UE2 determines that the service quality is poor.
UTRAN6 manages radio resources by using the reception quality status information included in the reception status report message (S210). UTRAN6 manages radio resources to ensure minimal quality of service for UE2.
In the first, second, and third embodiments of the present invention, UE2 sends a measurement report message or a reception status report message including measurement result information or reception quality status information for the reception service to UTRAN6 via the uplink common control channel. Send immediately. On the other hand, UE2 does not immediately send the measurement report message or reception status report message to UTRAN6, but when UTRAN and RRC are linked for services other than MBMS such as voice service, measurement result information or reception quality status information for the reception service May be sent to UTRAN6. For example, UE2 includes uplink common control when accessing UTRAN6 to receive a voice call by including measurement result information or reception quality status information for the reception service in the RRC concatenation request message while receiving the MBMS. RRC concatenation requests can be transmitted over the channel.
FIG. 6 is a diagram showing a method 300 in which UE2 immediately transmits an MBMS report message such as a measurement report message or a reception status report message to UTRAN6. FIG. 7 is a diagram showing a method 400 in which UE2 transmits a report message, such as a measurement report message or a reception status report message, to UTRAN6 by a message used to request RRC concatenation, such as an RRC concatenation request message.
As shown in Figure 6, UE2 in RRC idle mode or RRC concatenated mode sends a report message, such as a measurement report message or a receive status report message, using a dedicated message via a common control channel or a dedicated control channel. Transmit to UTRAN6. Referring to FIG. 6, UE2 transmits feedback information such as quality information for a particular service received or information related to the quality measurement result of the received service to UTRAN6 as part of an MBMS-only message, such as an MBMS report message. (S302).
The service identifier (ID) for a particular MBMS is included in the MBMS reporting message. The MBMS report message indicates, for example, when UE2 receives specific service data with excessive error for a considerable amount of time, for example, according to the MBMS measurement control message transmitted by UTRAN6, or the reception quality status of the specific service. Includes the results of measurements performed according to the information presented.
UTRAN6 acknowledges the receipt of the MBMS report, for example by transmitting the MBMS measurement receipt confirmation (S304). UTRAN6 then manages radio resources by leveraging information such as reception quality status or measurement results for services received from UE2. The step in which UTRAN6 notifies UE2 of receipt confirmation can be omitted.
Referring to Figure 7, when a point-to-multipoint radio bearer is established for a particular service in the cell, UTRAN6 puts some UE2 in RRC concatenated mode in the cell, taking into account the radio resources managed by UTRAN6. The remaining UE2 maintains RRC idle mode. Specifically, when an RRC concatenation request message is received from UE2 that wants to receive a specific service via the uplink control channel, UTRAN receives the corresponding service in RRC concatenation mode in consideration of the radio resources maintained by UTRAN6. Transmission the RRC concatenated setup message to the specified number of UE2s. By transmitting an RRC concatenation refusal message to the remaining UE2, UTRAN6 controls the remaining UE2 to receive the corresponding service in idle mode.
As shown in FIG. 7, UE2 transmits quality information for a particular received service or information related to the measurement of received service quality in the RRC concatenation request (S402) to UTRAN6. Method 400 demonstrates the extended use of RRC concatenation requirements.
Method 400, illustrated in FIG. 7, is not used when UE2 immediately sends feedback information, such as quality information for a particular received service or information related to measuring the quality of received service. Rather, the method illustrated in Figure 7 is used when UE2 establishes an RRC connection with UTRAN6 to receive services other than MBMS while receiving MBMS.
UE2 includes the quality of service status information or quality of service measurement for a particular received service in the RRC concatenation request message transmitted to UTRAN6. The service identifier (ID) of a particular MBMS is included in the RRC concatenation request message.
Also, the RRC concatenation request message may be used only for the transmission of feedback information when UE2 does not attempt to receive other services. UE2 transmits the RRC concatenation request message including the cause of transmission or the reason for transmitting the message. If the RRC concatenation request message contains feedback information, and if the transmission cause indicates that UE2 is not requesting RRC concatenation to receive other services, UTRAN6 indicates that the feedback information has been received. To indicate, send an RRC concatenation refusal message to UE2 (S404).
On the other hand, if UE2 requests RRC concatenation to receive services other than MBMS, UTRAN6 transmits an RRC concatenation setup message or RRC concatenation refusal message to UE2, taking into account the radio resources maintained by that UTRAN6. ..
With reference to FIG. 8, a block diagram of the mobile communication device 500 of the present invention, such as a mobile phone for carrying out the method of the present invention, is shown. The mobile communication device 500 is a processing unit 510 such as a microprocessor or digital signal processor, an RF module 535, a power management module 505, an antenna 540, a battery 555, a display 515, a keypad 520, a flash memory, a storage such as ROM or SRAM. Includes unit 530, speaker 545 and microphone 550.
The user inputs instruction information such as a telephone number by pressing a button on the keypad 520 or by voice activation using the microphone 550, for example. The processing unit 510 performs appropriate functions such as receiving and processing instruction information and dialing a telephone number. In order to execute such a function, arithmetic data is retrieved from the memory unit 530. In addition, the processing unit 510 can display instructions and arithmetic information on the display 515 for user reference and convenience.
The processing unit 510 issues instruction information to the RF module 535 to initialize communication by transmitting, for example, a radio signal including voice communication data. RF module 535 includes receivers and transmitters that receive and transmit radio signals. Antenna 540 facilitates the transmission and reception of radio signals. Upon receiving the radio signal, the RF module 535 transmits this signal and converts it to baseband frequency for processing by the processing unit 510. The processed signal is converted into information that can be heard or read, for example, through the speaker 545.
RF module 535 is configured to receive data from network 4 and transmit measurement result parameters related to quality of service to the network. The storage unit 530 stores measurement result parameters related to service quality. The processing unit 510 receives data via the traffic channel, performs service quality measurements on the data received through the traffic channel, generates measurement result parameters, and transmits the measurement results to the network via the control channel. ..
FIG. 9 is a block diagram of UTRAN 620 according to an embodiment of the present invention. UTRAN620 includes one or more wireless network subsystems (RNS) 625. Each RNS625 includes a radio network controller (RNC) 623 and a plurality of nodes B621 or base stations managed by the RNC623. RNC623 handles the allocation and management of radio resources and operates as an access point to core network 4. RNC623 is also configured to carry out the methods of the invention.
Node B621 receives the information sent by the physical layer of the mobile terminal 500 through the uplink and transmits the data to the terminal through the downlink. Node B621 operates as an access point for UTRAN620 or as a receiver / transmitter for the mobile terminal 500.
Node B transmits data to at least one mobile terminal 500 and receives measurement result parameters from the mobile terminal. The RNC623 transmits data over the traffic channel and receives measurement result parameters through the control channel, which are received through the traffic channel in response to a service quality measurement of the received data.
INDUSTRIAL APPLICABILITY According to the present invention, the RRC idle mode mobile terminal can inform UTRAN of the reception quality status information or the measurement result for the service currently provided to the mobile terminal via the uplink common control channel. UTRAN is also provided with a receive quality status or measurement result for the service provided to the RRC idle mode mobile terminal via the uplink common control channel, thereby establishing a radio within the cell in which the service is provided. Facilitates more effective management of bearers. The present invention facilitates minimal quality assurance for the services provided to the RRC idle mode UE.
It will be apparent to those skilled in the art that preferred embodiments of the present invention can be readily embodied, for example by using the processor 510 or other data or digital processing device alone or in combination with external assist logic. Let's do it.
Although the content of mobile communication has been described in the present invention, the present invention can be used for any wireless communication system using a mobile device, such as a PDA and a laptop computer having wireless communication capability. Also, the use of specific terms to describe the invention is not intended to limit the scope of the invention to specific types of wireless communication systems such as UMTS. The present invention can also be applied to other wireless communication systems that use different air interfaces and / or physical layers, such as TDMA, CDMA, FDMA, WCDMA.
Standard programming and / or engineering techniques can be used to implement preferred embodiments as methods, equipment or products to generate software, firmware, hardware or any combination thereof. The term "manufactured" as used herein refers to hardware logic (eg, integrated circuit chips, FPGA (Field Programmable Gate Array), ASIC (Application Specific Integrated Circuit), etc.) or computer readable media (eg,). Magnetic storage media (hardware drives, floppy (registered trademark) disks, tapes, etc.), optical storage (CD-ROMs, optical disks, etc.), volatile and non-volatile memory devices (EEPROM, ROM, PROM, RAM, DRAM, SRAM, firmware, firmware) Wear, programmable logic, etc.))) means the code or logic.
The code on the computer-readable medium is accessed and executed by the processor. The code in which the preferred embodiment is realized can be accessed from a file server via a transmission medium or through a network. In such cases, the product in which the code is mounted includes transmission media such as network transmission lines, wireless transmission media, signals transmitted through space, radio waves, infrared signals, and the like. Of course, those skilled in the art can make many changes to such a configuration within the scope of the present invention, and the product can include any information-containing medium known to the art. You should understand that.
The logical implementations illustrated in the drawings are specific operations by occurring in a specific order. In the alternative implementation, certain logical operations can be performed, modified, or removed in other order, and even then the preferred embodiments of the present invention can be embodied unchanged. You can also add steps to the logic described above, and still follow the embodiments of the present invention.
<figref num="1">It is a block diagram of a conventional UMTS network structure.</figref><figref num="2">It is a figure which shows the conventional method which UTRAN receives the reception state feedback from UE.</figref><figref num="3">It is a figure which shows the service quality guarantee method which concerns on 1st Embodiment of this invention.</figref><figref num="4">It is a figure which shows the service quality guarantee method which concerns on 2nd Embodiment of this invention.</figref><figref num="5">It is a figure which shows the service quality guarantee method which concerns on 3rd Embodiment of this invention.</figref><figref num="6">It is a figure which shows the method of this invention which a service quality measurement execution immediate UE transmits a report message to UTRAN.</figref><figref num="7">It is a figure which shows the method of this invention which a UE transmits a report message to UTRAN at the start of connection with UTRAN.</figref><figref num="8">It is a figure which shows the mobile communication device which receives a service from a network by one Embodiment of this invention.</figref><figref num="9">It is a figure which shows the network which transmits the service to the mobile terminal by one Embodiment of this invention.</figref>
Code description
2 UE, 4 core network, 6 UTRAN, 500 mobile communication device, 505 power management module, 510 processing unit, 515 display, 520 keypad, 530 storage unit, 535 RF module, 540 antenna, 545 speaker, 550 microphone, 555 battery
Every citation, both ways
| Document | Relation | Office |
|---|---|---|
| JP2001308784A | Cites | Japan |
| US05778316A | Cites | United States of America |
| WO00067507A1 | Cites | World Intellectual Property Organization (WIPO) |
| US06259915B1 | Cites | United States of America |
| JP2002064878A | Cites | Japan |
| WO99055112A1 | Cites | World Intellectual Property Organization (WIPO) |
| JP2003511925A | Cites | Japan |
| JP2003500909A | Cites | Japan |
| WO98057512A1 | Cites | World Intellectual Property Organization (WIPO) |
17 members in 10 offices
Priority claims9
| Document | Office | Kind | Date |
|---|---|---|---|
| 1020030057131 | Republic of Korea | – | |
| 20030057131 | Republic of Korea | A | |
| 20030057131 | Republic of Korea | A | |
| 2004002068 | Republic of Korea | W | |
| 2004002068 | Republic of Korea | W | |
| 2003200357131 | – | – | – |
| 2004002068 | – | – | – |
| KR20030057131 | – | – | – |
| WO2004KR02068 | – | – | – |
Members17
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| AU2004301056A1 | Australia | A1 | |
| US2005042987A1 | United States of America | A1 | |
| WO2005018267A1 | World Intellectual Property Organization (WIPO) | A1 | |
| KR20050019397A | Republic of Korea | A | |
| MXPA06001730A | Mexico | A | |
| EP1656810A1 | European Patent Office (EPO) | A1 | |
| RU2006108548A | Russian Federation | A | |
| CN1839652A | China | A | |
| BRPI0413209A | Brazil | A | |
| JP2007503152A | Japan | A | |
| AU2004301056B2 | Australia | B2 | |
| CN100481972C | China | C | |
| RU2361373C2 | Russian Federation | C2 | |
| KR100976475B1 | Republic of Korea | B1 | |
| JP4592697B2This record | Japan | B2 | |
| US7907952B2 | United States of America | B2 | |
| EP1656810B1 | European Patent Office (EPO) | B1 |
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Numbers
- Publication
- 4592697
- Publication, DOCDB
- 4592697
- Publication, EPODOC
- JP4592697B
- Application
- 2006523784
- Application, DOCDB
- 2006523784
- Application, EPODOC
- JP20060523784
Titles2
- Japanese
- 移動体端末機に通信サービスの品質を保障する方法と装置
- English
- Methods and devices for guaranteeing the quality of communication services for mobile terminals
Classification
- CPC, 3
- H04W72/30
- H04B7/26
- H04W28/24
- IPC, 6
- H04W4 06
- H04W52 38
- H04B7 26
- H04W4 12
- H04W28 24
- H04W72 54