WO2011106972A1 - Procédé et système de réception d'un service de multidiffusion/diffusion - Google Patents

Procédé et système de réception d'un service de multidiffusion/diffusion Download PDF

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Publication number
WO2011106972A1
WO2011106972A1 PCT/CN2010/077236 CN2010077236W WO2011106972A1 WO 2011106972 A1 WO2011106972 A1 WO 2011106972A1 CN 2010077236 W CN2010077236 W CN 2010077236W WO 2011106972 A1 WO2011106972 A1 WO 2011106972A1
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WIPO (PCT)
Prior art keywords
terminal
broadcast service
multicast broadcast
base station
message
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PCT/CN2010/077236
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English (en)
Chinese (zh)
Inventor
李楠
吕开颖
孙波
谢峰
Original Assignee
中兴通讯股份有限公司
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Publication of WO2011106972A1 publication Critical patent/WO2011106972A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular to a method and system for receiving a multicast broadcast service.
  • WiMAX Worldwide Interoperability for Microwave Access
  • ABS Advanced Base Station
  • Advanced base stations support multi-carrier operation, that is, use a single Media Access Control (MAC).
  • the physical layer Physical, abbreviated as PHY
  • PHY Physical, abbreviated as PHY
  • Carriers of advanced base stations supporting multiple carriers can be divided into fully configured carriers and partially configured carriers.
  • a fully configured carrier refers to a carrier configured with all control channels, including a synchronization channel, a broadcast channel, a multicast channel, and a unicast channel, and also includes channels related to information and parameters of multi-carrier operation and other carriers.
  • Partially configured carrier refers to a carrier that is only configured with a control channel for supporting downlink data transmission in multi-carrier operation.
  • the fully configured carrier can be used as the primary carrier or the secondary carrier of the terminal supporting the multi-carrier, and the partially configured carrier can only serve as the secondary carrier of the terminal.
  • Each terminal supporting multiple carriers can only have one primary carrier, and may have one or more secondary carriers or no secondary carriers.
  • the base station needs to allocate a secondary carrier for the terminal, and then activate the secondary carrier according to its service condition.
  • the existing protocol specifies the following two modes of operation: carrier aggregation and carrier conversion.
  • the carrier aggregation means that: the terminal always maintains a physical connection with its primary carrier and monitors the control information transmitted thereon; the carrier conversion refers to: the terminal converts the physical connection from the primary carrier to the secondary carrier through the indication information of the base station, and After being connected to the secondary carrier, the terminal does not need to maintain reception and transmission on the primary carrier.
  • Multicast Broadcast Service is on the mobile network.
  • the network provides a point-to-multipoint service in which data sources transmit data to multiple users, which enables network resource sharing and improves utilization of air interface resources.
  • the advanced base station needs to support enhanced multicast broadcast service (Enhanced MBS, referred to as E-MBS), that is, it needs to realize multicast broadcast of high-speed multimedia service, and also needs to reduce power consumption of the terminal. Therefore, multi-carrier and E-MBS are combined to achieve high throughput and high rate requirements.
  • E-MBS enhanced multicast broadcast service
  • E-MBS services There are two ways to carry E-MBS services on multiple carriers: One is the dedicated carrier mode, that is, the E-MBS service monopolizes all time-frequency resources on a certain carrier; the other is the hybrid carrier mode, that is, E- The MBS service shares the time-frequency resources on the carrier with the unicast service.
  • the base station or the terminal establishes one or more multicast broadcast service connections for the terminal by initiating the service flow establishment process, and carries the parameter information of the established multicast broadcast service connection in the service flow setup message.
  • the resource location information of the corresponding multicast broadcast service mapping message (AAI_EMBS-MAP) is obtained by parsing the multicast broadcast service configuration message (AAI_E-MBS-CFG). And modulating the encoded information, and then parsing the multicast broadcast service mapping message on the corresponding resource location information, thereby obtaining resource location information and modulation and coding information of the multicast broadcast service data, and finally receiving the corresponding multicast broadcast service data.
  • the multicast broadcast service configuration message, the multicast broadcast service mapping message, and the multicast broadcast service data may be discontinuous in location distribution.
  • the multicast broadcast service configuration message is sent once by a multi-cast broadcast service scheduling interval (MSI), and the multicast broadcast service mapping message is sent once for each MSI.
  • MSI multi-cast broadcast service scheduling interval
  • the multicast broadcast service configuration message and the multicast broadcast service mapping message are collectively referred to as a multicast broadcast service control message.
  • a multicast broadcast service connection established by a terminal may be carried on multiple different carriers. If a terminal with carrier conversion capability needs to receive a multicast broadcast service that has already been established, it needs to be between multiple carriers.
  • the terminal needs to leave its primary carrier, and correspondingly, the base station is at the terminal.
  • the terminal should be prevented from scheduling the unicast service on the primary carrier.
  • the related art has a problem in that the terminal may establish multiple multicast broadcast service connections. As shown in FIG. 1, the terminal establishes three E-MBS connections on the E-MBS carrier 1, which are respectively E-MBS connections.
  • E-MBS connection 2 and E-MBS connection 3 but the terminal currently only chooses to receive data from E-MBS connection 1, ie the terminal only in multicast broadcast service configuration message, multicast broadcast service mapping message and E-MBS
  • the connection 1 data When the connection 1 data is transmitted, it will leave the primary carrier and switch to E-MBS carrier 1.
  • base The station judges according to the multicast broadcast service connection established by the terminal, and the base station considers that the terminal is not on the primary carrier at the E-MBS connection 2 and the E-MBS connection 3 data transmission moment, which will result in the terminal's primary carrier.
  • the resources are very wasteful, which makes it difficult for the base station to perform unicast service scheduling for the terminal on the primary carrier.
  • a primary object of the present invention is to provide a method and system for receiving a multicast broadcast service, to at least solve the above-mentioned related art, in which the base station cannot determine whether the terminal leaves the primary carrier, and converts to the carrier that carries the multicast broadcast service, and receives the multicast.
  • the problem of the broadcasting business is to provide a method and system for receiving a multicast broadcast service, to at least solve the above-mentioned related art, in which the base station cannot determine whether the terminal leaves the primary carrier, and converts to the carrier that carries the multicast broadcast service, and receives the multicast.
  • a method for receiving a multicast broadcast service including: a terminal sending a message to a base station, where the message carries at least one of the following information: indication information of the terminal leaving the primary carrier, and more to be received Broadcast identification information of the broadcast service.
  • the method further includes: the base station receiving the message; the base station sending a feedback message to the terminal, where the feedback message carries an indication for allowing or denying the terminal to leave the primary carrier. information.
  • the message sent by the terminal to the base station carries time information, which is used to indicate the time when the terminal requests to leave the primary carrier.
  • the feedback message when the feedback message carries information for indicating that the terminal is allowed to leave the primary carrier, the feedback message further carries time information, where the time information is used to indicate that the base station allows the terminal to leave the primary carrier.
  • the method further includes: the terminal leaving the primary carrier at the time, and switching to the carrier carrying the multicast broadcast service.
  • the time information includes one of the following: a superframe offset, a superframe number, a frame number, a frame offset, a combination of a superframe number and a frame number, a combination of a superframe offset and a frame offset, a superframe or Frame bit map.
  • the method further includes: determining, by the base station, the time when the terminal leaves the primary carrier according to the identifier information of the multicast broadcast service to be received, where the multicast broadcast to be received is The identification information of the service is used to notify the foregoing base station that the terminal is waiting to be connected.
  • the received multicast broadcast service connection, the identifier information of the multicast broadcast service to be received includes at least one or any combination of the following: a multicast broadcast service area identifier, a combination of a multicast broadcast service station identifier and a stream identifier, and a multicast broadcast. Business connection bitmap.
  • the method further includes: when the connection of the multicast broadcast service to be received by the terminal is changed, the terminal updates the identifier information of the multicast broadcast service to be received; The identification information of the multicast broadcast service is sent to the above base station.
  • the method further includes: receiving, by the terminal, the multicast broadcast service sent by the base station on the carrier carrying the multicast broadcast service; and the time of the terminal in addition to receiving the multicast broadcast service Returning to the primary carrier; after the base station determines that the terminal returns the primary carrier, the base station schedules a unicast service for the terminal on the primary carrier.
  • the base station determines that the terminal returns to the primary carrier, and includes one of the following: the terminal sends the return information to the base station after returning to the primary carrier, where the return information is used to indicate that the terminal returns to the primary carrier; Determining whether the terminal returns to the primary carrier according to the leaving time information and the staying time information, wherein the leaving time information is used to indicate a time when the terminal leaves the primary carrier, and the staying time information is And determining, by the base station, a time of staying on the carrier carrying the multicast broadcast service; and determining, by the base station, the time when the terminal returns to the primary carrier according to the identifier information of the multicast broadcast service to be received sent by the terminal.
  • the terminal receiving the multicast broadcast service sent by the base station on the carrier carrying the multicast broadcast service includes at least one of: receiving a multicast broadcast service configuration message; receiving a multicast broadcast service mapping message; receiving the multicast broadcast Business data.
  • a receiving system for a multicast broadcast service including: a terminal and a base station, where the terminal includes: a sending unit, configured to send a message to the base station, where the message carries the following information At least one of: the indication information of the terminal leaving the primary carrier, and the identifier information of the multicast broadcast service to be received; the receiving unit, configured to receive, by using the carrier carrying the multicast broadcast service, the multicast broadcast sent by the base station business.
  • the foregoing base station includes: a receiving unit, configured to receive the message, and a scheduling unit, configured to: after determining that the terminal returns the primary carrier from the carrier that carries the multicast broadcast service, on the primary carrier, The broadcast service, wherein the terminal returns the primary carrier from the carrier of the seven-carrier multicast service at a time other than receiving the multicast broadcast service.
  • the invention has the following beneficial effects:
  • the terminal sends the information to indicate that the terminal leaves the primary carrier, and the base station clears the time for the terminal to not perform unicast service scheduling on the primary carrier, thereby implementing reasonable scheduling of the unicast service and saving resources on the primary carrier; Receiving, by the terminal, the primary carrier from the carrier carrying the multicast broadcast service on the gap between receiving the multicast broadcast service data and the multicast broadcast service control message, so that the base station can receive the multicast broadcast service data and the multicast broadcast service control message Outside the time, the terminal performs unicast service scheduling on the primary carrier, so that the terminal realizes the alternate reception of the unicast service and the multicast service, fully utilizes resources, and improves resource utilization.
  • FIG. 1 is a schematic diagram of a multicast broadcast service connection according to the related art
  • FIG. 2 is a schematic diagram of a receiving system of a multicast broadcast service according to an embodiment of the present invention
  • FIG. 3 is a multicast according to an embodiment of the present invention.
  • FIG. 4 is a preferred flowchart 1 of a method for receiving a multicast broadcast service according to an embodiment of the present invention
  • FIG. 5 is a flowchart of a preferred method for receiving a multicast broadcast service according to an embodiment of the present invention
  • FIG. 6 is a third preferred flowchart of a method for receiving a multicast broadcast service according to an embodiment of the present invention
  • FIG. 7 is a fourth preferred flowchart of a method for receiving a multicast broadcast service according to an embodiment of the present invention
  • a preferred flowchart of the method for receiving a multicast broadcast service according to an embodiment of the present invention is shown in FIG. BEST MODE FOR CARRYING OUT THE INVENTION
  • the terminal refers to a terminal having carrier switching capability, for example, having only one terminal The terminal of the RF channel.
  • the receiving system of the multicast broadcast service includes: a terminal 21 and a base station 22.
  • the terminal 21 includes: a transmitting unit 211 and a receiving unit 212.
  • the sending unit 211 sends a message to the base station 22, where the message carries at least one of the following information: the indication information of the terminal 21 leaving the primary carrier, and the identification information of the multicast broadcast service to be received.
  • the receiving unit 212 receives the multicast broadcast service data or the multicast broadcast service control message from the base station 22 on the carrier carrying the multicast broadcast service.
  • the multicast broadcast service control message includes at least one of the following: a multicast broadcast service configuration message, and a multicast broadcast service mapping message.
  • the terminal sends a message to instruct the terminal to leave the primary carrier, and the base station clarifies the time for the terminal to not perform unicast service scheduling on the primary carrier, thereby saving resources on the primary carrier.
  • the foregoing base station 22 includes: a receiving unit 221 and a scheduling unit 222. In the working state, the receiving unit 221 receives the above message sent by the terminal.
  • the scheduling unit 222 after determining that the terminal returns to the primary carrier, schedules a unicast service for the terminal on the primary carrier, where the terminal may return the primary carrier from the carrier carrying the multicast broadcast service at a time other than receiving the multicast broadcast service.
  • receiving the multicast broadcast service includes at least one of: receiving a multicast broadcast service mapping message, receiving a multicast broadcast service configuration message, and receiving the multicast broadcast service data.
  • the terminal returns the primary carrier from the carrier carrying the multicast broadcast service on the gap between receiving the multicast broadcast service data and the multicast broadcast service control message, so that the base station can receive the multicast broadcast service data and the multicast broadcast service control.
  • the terminal performs unicast service scheduling on the primary carrier, thereby fully utilizing resources and improving resource utilization.
  • the receiving system of the multicast broadcast service shown in FIG. 2 can use the receiving method of the multicast broadcast service as shown in FIG. 3.
  • the method for receiving a multicast broadcast service according to the embodiment of the present invention includes: The terminal sends a message to the base station, where the message carries at least one of the following information: indication information of the terminal leaving the primary carrier, and multicast to be received. Identification information of the broadcast service.
  • the terminal sends the foregoing information to the base station before the terminal leaves the primary carrier and switches to the carrier that carries the multicast broadcast service.
  • the base station carries the above information to perform unicast service scheduling on the terminal.
  • the different flows of the base station to implement the above process are described in detail below by way of embodiments.
  • Embodiment 1 The base station and the terminal establish one or more multicast broadcast service connections for the terminal by using a service flow setup message (AAI-DSA-RSP message or AAI-DSA-REQ message).
  • the terminal alternately switches between the primary carrier and the carrier carrying the multicast broadcast service, thereby alternately receiving the unicast service and the multicast broadcast service. As shown in FIG.
  • the terminal A message (for example, an AAI_EMBS-REV-IND message) is sent to the base station, indicating that the base station terminal will leave the primary carrier and receive the multicast broadcast service (step S41).
  • the AAI EMBS-REV-IND message carries an action identifier (for example, an Action code), and the value of the action identifier is 0, indicating that the terminal will leave the primary carrier, and a value of 1 indicates that the terminal returns the primary carrier.
  • an action identifier for example, an Action code
  • the terminal carries time information in the foregoing AAI EMBS-REV-IND message, and is used to indicate a time (Action time) that the terminal requests to leave the primary carrier, where the time information may include one of the following: a superframe offset, Superframe number, frame number, frame offset, combination of superframe number and frame number, combination of superframe offset and frame offset, superframe or frame bitmap.
  • the base station after receiving the foregoing message, sends a feedback message to the terminal (step S42), where the feedback message carries information for indicating that the terminal is allowed to leave or reject the primary carrier.
  • the base station may also carry time information in the feedback message, where the time information is used to indicate the time when the terminal is allowed to leave the primary carrier.
  • the time information may include one of the following: a superframe offset, a superframe number, a frame number, a frame offset, a combination of a superframe number and a frame number, a combination of a superframe offset and a frame offset. , superframe or frame bitmap.
  • the base station does not perform the unicast service on the primary carrier for the terminal after sending the feedback message. Scheduling, the terminal can perform carrier conversion at any time after receiving the feedback message, that is, leaving the primary carrier and switching to the carrier carrying the multicast broadcast service.
  • the terminal can perform carrier conversion at any time after receiving the feedback message, that is, leaving the primary carrier and switching to the carrier carrying the multicast broadcast service.
  • the base station does not carry the time information in the feedback message, indicating that the base station agrees to the time when the terminal requests to leave.
  • the terminal can leave the primary carrier at the departure time requested in the AAI EMBS-REV-IND message, and switch to the carrier carrying the multicast broadcast service to receive the multicast broadcast service data or the multicast broadcast service control message.
  • the terminal carries the time when the request is left in the AAI_EMBS-REV-IND message
  • the base station also carries the time information in the feedback message, but the time information is different from the time when the terminal requests to leave, indicating that the base station indicates the terminal is in feedback. The moment in the message leaves the primary carrier.
  • the terminal if the terminal does not carry the request to leave in the AAI EMBS-REV-IND message, the base station carries time information in the feedback message, indicating that the base station instructs the terminal to perform carrier conversion at the time in the feedback message.
  • the terminal receives the multicast broadcast service configuration message, the multicast broadcast service mapping message or the multicast broadcast service data on the carrier (step S43). The terminal returns the primary carrier from the carrier carrying the multicast broadcast service at a time other than receiving the multicast broadcast service.
  • the terminal sends an AAI EMBS-REV-IND message to the base station on the primary carrier, where the carried action identifier indicates that the terminal has returned the primary carrier (step S44).
  • the terminal indicates that the terminal has returned to the primary carrier by sending a codeword of the bandwidth request to the base station, or sending a bandwidth request header, or sending a bandwidth request message on the primary carrier.
  • the terminal sends a bandwidth request header or a bandwidth request message and carries information that has returned the primary carrier.
  • the base station after receiving the foregoing AAI_EMBS-REV-IND message, the base station sends a feedback message to the terminal for confirmation, and performs unicast service scheduling on the primary carrier for the terminal (step S45).
  • step S45 the base station sends a feedback message to the terminal for confirmation, and performs unicast service scheduling on the primary carrier for the terminal.
  • Action code 1 0 Leave the primary carrier
  • Action time Table 3 shows the parameters of the feedback message sent by the base station to the terminal.
  • the message and the feedback message may respectively add the foregoing parameter to the existing control message, and may also be a new control message.
  • the primary carrier from the carrier carrying the multicast broadcast service on the gap between receiving the multicast broadcast service data and the multicast broadcast service control message, so that the base station can receive the multicast broadcast service data and the multicast broadcast service control message Outside the time, the terminal performs unicast service scheduling on the primary carrier, making full use of resources and improving resource utilization.
  • Embodiment 2 The base station and the terminal establish one or more multicast broadcast service connections for the terminal by using a service flow establishment message (AAI-DSA-RSP message or AAI-DSA-REQ message).
  • the terminal alternately switches between the primary carrier and the carrier carrying the multicast broadcast service, thereby alternately receiving the unicast service and the multicast broadcast service.
  • the terminal sends the AAI_EMBS.
  • the -REV-IND message (considered as the leave indication message) is sent to the base station to indicate that the base station terminal will leave the primary carrier (step S51).
  • the terminal carries time information (also referred to as leaving time information) in the AAI-EMBS-REV message, and is used to indicate the time (Action time) that the terminal requests to leave the primary carrier.
  • the AAI-EMBS-REV message may further carry the stay time information, which is used to indicate the duration (Date) of the terminal on the carrier carrying the multicast broadcast service.
  • the base station determines the time when the terminal returns to the primary carrier according to the values of the action time and the duration of the duration information.
  • the base station sends a feedback message to the terminal (step S52), where the feedback message carries information for indicating that the terminal is allowed to or denied the leaving the primary carrier.
  • the base station may also carry time information in the feedback message for indicating the time when the terminal is allowed to leave the primary carrier.
  • the base station feedback message determines whether the terminal can leave the primary carrier and the time of leaving the primary carrier, so that the base station can flexibly control the terminal, and the base station can appropriately control the terminal when considering the overall resource, so that Better use of system resources.
  • Table 5 The parameter examples of the above AAI_EMBS-REV-IND message are shown in Table 5.
  • the terminal After switching to the carrier carrying the multicast broadcast service, the terminal receives the multicast broadcast service data or the multicast broadcast service control message on the carrier carrying the multicast broadcast service (step S53), and may receive the multicast broadcast service.
  • the time is returned to the primary carrier.
  • the base station can determine the time when the terminal returns to the primary carrier according to the values of the Action time and the Duration.
  • the base station can perform unicast service scheduling on the primary carrier after the terminal returns to the primary carrier (step S54), thereby fully utilizing the resources.
  • Embodiment 3 The base station and the terminal establish one or more multicast broadcast service connections for the terminal by using a service flow setup message (AAI-DSA-RSP message or AAI-DSA-REQ message).
  • the terminal alternately switches between the primary carrier and the carrier carrying the multicast broadcast service, thereby alternately receiving the unicast service and the multicast broadcast service. As shown in FIG.
  • the terminal when the terminal leaves the primary carrier and switches to the carrier carrying the multicast broadcast service, the terminal sends an AAI_EMBS-REV-IND message to the base station, indicating that the base station terminal will leave the primary carrier (step S61) felicit terminal in AAI_EMBS-
  • the REV-IND message carries: an action identifier (for example, an action code), and the value of the action identifier indicates that the terminal will leave the primary carrier; the identifier information of the multicast broadcast service to be received, where the identifier of the multicast broadcast service
  • the information may include a combination of a multicast broadcast area identifier (E-MBS Zone ID), a multicast broadcast station identifier (MSTID), and a flow identifier (FID).
  • the base station receives the to-be-received After the identifier information of the multicast broadcast service is determined, determining, according to the identifier information of the multicast broadcast service, a time when the terminal switches to the carrier receiving the multicast broadcast configuration message, the multicast broadcast mapping message, and the multicast broadcast service data that carries the multicast broadcast service, and The moment when the terminal returns to the primary carrier, so that the base station can perform unicast service scheduling on the primary carrier for the terminal.
  • the terminal carries the time information in the AAI_EMBS-REV-IND message, and is used to indicate the time when the terminal requests to leave the primary carrier.
  • the base station after receiving the foregoing message, sends a feedback message to the terminal (step S62), where the feedback message carries useful information. Instructing to allow or reject the information that the terminal leaves the primary carrier.
  • the base station may further carry time information in the feedback message for indicating the time when the terminal is allowed to leave the primary carrier.
  • the feedback message determines whether the terminal can leave the primary carrier and the time of leaving the primary carrier, so that the base station can flexibly control the terminal, and the base station can appropriately control the terminal in consideration of the overall resource, so as to better Utilize system resources.
  • Table 6 The parameter examples of the above AAI EMBS-REV-IND message are shown in Table 6. Table 6
  • the terminal After switching to the carrier carrying the multicast broadcast service, the terminal receives the multicast broadcast service data or the multicast broadcast service control message on the carrier (step S63).
  • the terminal sends an AAI_EMBS-REV-IND message to the base station on the primary carrier, where the carried action identifier indicates that the terminal returns the primary carrier.
  • the base station can determine the idle time period of the terminal in addition to receiving the multicast broadcast service according to the identification information of the multicast broadcast service in the AAI EMBS-REV-IND message, so the base station is in addition to the multicast broadcast service configuration message and the multicast broadcast.
  • the service map message and the idle time period outside the multicast broadcast service data transmission time are the terminal scheduling the unicast service on the primary carrier (step 4 S64).
  • the primary carrier from the carrier carrying the multicast broadcast service on the gap between receiving the multicast broadcast service data and the multicast broadcast service control message, so that the base station can receive the multicast broadcast service data and the multicast broadcast service control message Outside the time, the terminal performs unicast service scheduling on the primary carrier, making full use of resources and improving resource utilization.
  • Embodiment 4 The base station and the terminal establish one or more multicast broadcast service connections for the terminal by using a service flow setup message (AAI-DSA-RSP message or AAI-DSA-REQ message).
  • the terminal alternately switches between the primary carrier and the carrier carrying the multicast broadcast service, thereby alternately receiving the unicast service and the multicast broadcast service.
  • the terminal sends an AAI_EMBS-REV-IND message (referred to as a leave indication message) to the base station, and is used to indicate that the base station terminal will leave the primary carrier. (Step S71).
  • the terminal carries the identifier information of the multicast broadcast service to be received in the AAI-EMBS-REV message, where the identifier information of the multicast broadcast service may include a multicast broadcast area identifier (E-MBS Zone ID), and the multicast broadcast A combination of a Station ID (MSTID) and a Flow ID (FID).
  • E-MBS Zone ID multicast broadcast area identifier
  • MSTID Station ID
  • FID Flow ID
  • the base station sends a feedback message to the terminal (step S72), and the message instance is shown in Table 10.
  • the feedback message carries information for indicating that the terminal is allowed or denied to leave the primary carrier.
  • the base station may also carry time information in the feedback message for indicating the time when the terminal is allowed to leave the primary carrier.
  • the base station feedback message determines whether the terminal can leave the primary carrier and the time of leaving the primary carrier, so that the base station can flexibly control the terminal, and the base station can appropriately control the terminal when considering the overall resource, so that Better use of system resources.
  • Table 8 The parameter examples of the above AAI EMBS-REV-IND message are shown in Table 8. Table 8
  • the terminal After switching to the carrier carrying the multicast broadcast service, the terminal receives the multicast broadcast service data and/or the multicast broadcast service control message on the carrier (step S73). Since the base station acquires the idle time period according to the identification information of the multicast broadcast service in the AAI_EMBS-REV-IND message, the base station transmits the time except the multicast broadcast service configuration message, the multicast broadcast service mapping message, and the multicast broadcast service. The outer idle time period is that the terminal schedules the unicast service on the primary carrier (step S74). When the terminal changes the received multicast broadcast service, the terminal updates the identifier information of the multicast broadcast service to be received.
  • the terminal will send the AAI_EMBS-REV-IND message to the base station again, where the AAI_EMBS-REV-IND message carries the identifier information of the updated multicast broadcast service (step S75).
  • the base station according to the updated identification information of the multicast broadcast service is The terminal schedules the unicast service on the primary carrier. Specifically, when the value of N in the table 8 is zero, it indicates that the terminal stops receiving the multicast broadcast service.
  • the terminal may also carry the dedicated indication information in the AAI_EMBS-REV-IND message. It is used to instruct the terminal to start, change and stop the multicast broadcast service reception. At this time, the parameter examples of the AAI EMBS-REV-IND message are shown in Table 9. Table 9
  • the action code may include the value when the value is ObO.
  • Embodiment 5 The base station and the terminal establish a message (AAI-DSA-RSP message or AAI-DSA-REQ message) through the service flow, and establish one or more multicast broadcasts for the terminal. Business connection.
  • the terminal alternately switches between the primary carrier and the carrier carrying the multicast broadcast service, thereby alternately receiving the unicast service and the multicast broadcast service.
  • the terminal when the terminal leaves the primary carrier and switches to the carrier carrying the multicast broadcast service, the terminal sends an AAI_EMBS-REV-IND message (referred to as a leave indication message) to the base station, and is used to indicate that the base station terminal will leave the primary carrier. (Step S81).
  • the terminal carries the identifier information of the multicast broadcast service to be received in the AAI_EMBS-REV-IND message, where the identifier information of the multicast broadcast service includes the multicast broadcast service area identifier (E-MBS Zone ID) and the multicast broadcast service connection.
  • E-MBS Connection Bitmap Insert Multicast broadcast service bitmap from low to high (or high to low), each bit corresponding to a multicast broadcast service connection to be received.
  • the connection to be received is in accordance with MSTID+FID
  • the order of the values corresponds to each bit of the bitmap. For example, the MSTID+FID minimum corresponds to the most significant bit of the bitmap, and the MSTID+FID maximum corresponds to the highest bit of the bitmap.
  • Each bit takes a value of one, indicating the terminal.
  • the multicast broadcast service connection is about to be received or received, and the value of zero indicates that the connection is not received or the terminal has not established the connection of the multicast broadcast service area, and vice versa. If the terminal and the base station delete one or more multicast broadcasts that have been established.
  • the service connection, or establishing a new multicast broadcast service connection the terminal and the base station update the correspondence between the bitmap and the multicast broadcast service connection.
  • the base station sends a feedback message to the terminal (step S82), where the feedback message carries time information for indicating that the terminal is allowed to leave or leave the primary carrier.
  • the time information is a superframe or a frame bitmap
  • each bit in the bitmap corresponds to one or more frames or superframes in an MSI of the multicast broadcast service
  • the value is 1 means that the terminal is not allowed to leave the primary carrier within the frame or superframe
  • a value of 0 indicates that the terminal is allowed to leave the primary carrier within the frame or superframe (converted to other carriers to receive the multicast broadcast service), and vice versa. Therefore, whether the terminal can leave the primary carrier (whether the value is 0 or 1) and the time of leaving the primary carrier (the frame or superframe corresponding to each bit) can be determined by the time information bitmap carried in the feedback message of the base station.
  • the base station After switching to the carrier carrying the multicast broadcast service, the terminal receives the multicast broadcast service data and/or the multicast broadcast service control message on the carrier (step S83). After receiving the identifier information of the multicast broadcast service to be received, the base station may determine, according to the identifier information of the multicast broadcast service, that the terminal converts to the carrier receiving multicast broadcast configuration message, the multicast broadcast mapping message, and the carrier that carries the multicast broadcast service.
  • the time at which the broadcast service data is broadcast, and the time at which the terminal returns to the primary carrier, enables the base station to perform unicast service scheduling on the primary carrier for the terminal (step S84). If the terminal replaces the multicast broadcast service connection to be received, the terminal transmits an updated multicast broadcast service connection bit map to the base station (step S85).
  • the terminal carries time information in the AAI_EMBS-REV-IND message, and is used to indicate a moment when the terminal requests to leave the primary carrier.
  • the terminal does not receive or the terminal has not established the connection of the multicast broadcast service area.
  • the terminal is ⁇ ! Retrieving or receiving the multicast broadcast service connection
  • the terminal can return the primary carrier in an idle time period other than receiving the multicast broadcast service, so that the base station can implement the unicast service for the terminal, thereby fully utilizing the resources.
  • the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.

Abstract

L'invention concerne un procédé et un système de réception pour le Service de Multidiffusion/Diffusion (MBS, Multicast Broadcast Service). Le procédé de réception du service MBS comprend les étapes suivantes : un terminal émet un message vers une station de base et ledit message achemine au moins l'une des informations suivantes : une information d'indication du terminal abandonnant la porteuse principale et une information d'identification du service MBS à recevoir. En émettant le message depuis le terminal pour indiquer que le terminal a abandonné la porteuse principale, la station de base détermine le temps pendant lequel le service de diffusion individuelle ne sera pas planifié sur la même porteuse pour ce terminal, ce qui permet de remédier au problème selon lequel la station de base ne peut pas déterminer si le terminal a abandonné la porteuse principale, et cela permettant de planifier de façon raisonnable le service de diffusion individuelle et d'économiser les ressources constituées par les porteuses principales.
PCT/CN2010/077236 2010-03-05 2010-09-21 Procédé et système de réception d'un service de multidiffusion/diffusion WO2011106972A1 (fr)

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CN103260246B (zh) * 2012-02-15 2018-01-12 华为技术有限公司 一种载波调度方法及设备

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CN101374252A (zh) * 2007-08-21 2009-02-25 中国移动通信集团公司 基于mbms专用载波系统的终端反馈方法、计数方法及装置

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EP1463358A1 (fr) * 2003-03-28 2004-09-29 Siemens Aktiengesellschaft Procédé et station de base pour le transfert de données MBMS
CN1968451A (zh) * 2006-11-20 2007-05-23 华为技术有限公司 一种确定使用组播/广播业务时间的方法及系统
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WO2022087069A1 (fr) * 2020-10-21 2022-04-28 Google Llc Gestion de transmission et de réception de services de multidiffusion et de diffusion

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