WO2021155710A1 - 一种多媒体广播组播业务mbms的接收方法及装置 - Google Patents

一种多媒体广播组播业务mbms的接收方法及装置 Download PDF

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Publication number
WO2021155710A1
WO2021155710A1 PCT/CN2020/135052 CN2020135052W WO2021155710A1 WO 2021155710 A1 WO2021155710 A1 WO 2021155710A1 CN 2020135052 W CN2020135052 W CN 2020135052W WO 2021155710 A1 WO2021155710 A1 WO 2021155710A1
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Prior art keywords
mbms
terminal
network device
mapping relationship
rrc
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PCT/CN2020/135052
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English (en)
French (fr)
Inventor
周锐
张大钧
谌丽
曾二林
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大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to US17/790,509 priority Critical patent/US20230054043A1/en
Priority to EP20917504.1A priority patent/EP4102861A4/en
Publication of WO2021155710A1 publication Critical patent/WO2021155710A1/zh

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    • 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
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/40—Connection management for selective distribution or broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states

Definitions

  • This application relates to the field of mobile communications, and in particular to a method and device for receiving multimedia broadcast multicast service MBMS.
  • Multimedia Broadcast Multicast Service As a means to efficiently utilize physical resources, will be applied to the Internet of Vehicles, public safety and other technical fields in the 5G R17 version.
  • the transmission of MBMS data adopts a single network transmission and the terminal passively receives it. That is, whether the terminal is in a radio resource control (Radio Resource Control, RRC) connected state or a non-RRC connected state, it may passively receive MBMS data.
  • RRC Radio Resource Control
  • the success rate of data reception may decrease.
  • the terminal fails to receive successfully it will affect the normal operation of the terminal business.
  • the embodiments of the present application provide a method and device for receiving multimedia broadcast multicast service MBMS. Used to improve the reliability of MBMS data transmission.
  • a method for receiving multimedia broadcast multicast service MBMS includes:
  • the terminal judges whether it is currently in the non-RRC connected state
  • the terminal If the terminal is currently in a non-RRC connection state, it sends an RRC connection establishment request to the network device.
  • the RRC connection establishment request includes first indication information, and the first indication information is used to indicate that the reason for this connection establishment is Receive MBMS.
  • mapping relationship is carried in the MBMS control message received by the terminal; or, the mapping relationship is pre-configured.
  • the mapping relationship includes: a mapping relationship between attribute information, status indication, and feedback indication corresponding to MBMS.
  • the method further includes:
  • the method further includes:
  • the method further includes:
  • the MBMS retransmitted by the network device is received; the retransmitted MBMS includes the MBMS obtained by the network device after adjustment based on the relevant information of the first MBMS.
  • the method further includes:
  • the method further includes:
  • the non-RRC connected state includes: an RRC idle state and/or an RRC inactive state.
  • a method for sending a multimedia broadcast multicast service MBMS includes:
  • mapping relationship includes a status indicator corresponding to the first MBMS, and the status indicator is used to instruct the terminal to receive the first MBMS in an RRC connected state or a non-RRC connected state;
  • the RRC connection establishment request includes first indication information
  • the first indication information is used to indicate that the reason for the current connection establishment of the terminal is receiving MBMS.
  • mapping relationship is carried in an MBMS control message sent by the network device.
  • the mapping relationship includes: a mapping relationship between attribute information, status indication, and feedback indication corresponding to MBMS.
  • the method further includes:
  • the method further includes:
  • the method further includes:
  • the MBMS is retransmitted to the terminal, and the retransmitted MBMS includes the MBMS obtained by the network device after adjustment based on the relevant information of the MBMS.
  • the mapping relationship further includes a feedback indication, and the feedback indication is used to indicate whether the terminal needs to feed back the reception situation of the first MBMS.
  • the non-RRC connected state includes: an RRC idle state and/or an RRC inactive state.
  • a device for receiving a multimedia broadcast multicast service MBMS including:
  • Processing module used to determine the first MBMS to be initiated
  • the processing module is further configured to determine a status indicator corresponding to the first MBMS according to the mapping relationship, where the status indicator is used to instruct the terminal to receive the first MBMS in an RRC connected state or a non-RRC connected state;
  • the processing module is further configured to determine whether the terminal is currently in a non-RRC connected state when the status indication is used to instruct the terminal to receive the first MBMS in the RRC connected state;
  • the communication module is configured to send an RRC connection establishment request to the network device when the terminal is currently in a non-RRC connection state, the RRC connection establishment request includes first indication information, and the first indication information is used to indicate this time
  • the reason for connection establishment is to receive MBMS.
  • mapping relationship is carried in the MBMS control message received by the terminal; or, the mapping relationship is pre-configured.
  • the mapping relationship includes: a mapping relationship between attribute information, status indication, and feedback indication corresponding to MBMS.
  • the communication module is further configured to: receive a configuration message sent by the network device for instructing the terminal to connect to the network device;
  • the processing module is further configured to: based on the configuration message, connect to the network device and enter the RRC connected state;
  • the communication module is further configured to: receive the first MBMS sent by the network device.
  • the communication module is further configured to send feedback information indicating whether the terminal successfully receives the first MBMS.
  • the communication module is also used for:
  • the processing module determines that receiving the first MBMS fails, receive the MBMS retransmitted by the network device; the retransmitted MBMS includes the network device adjusted based on the relevant information of the first MBMS MBMS.
  • processing module is also used to:
  • the communication module After the communication module receives the first MBMS, the communication module is further configured to:
  • the processing module determines that the terminal needs to feed back the reception status of the first MBMS, feed back the reception status of the first MBMS to the network device.
  • the non-RRC connected state includes: an RRC idle state and/or an RRC inactive state.
  • a device for sending a multimedia broadcast multicast service MBMS includes:
  • the communication module is configured to send a mapping relationship to the terminal, where the mapping relationship includes a status indicator corresponding to the first MBMS, and the status indicator is used to instruct the terminal to receive the first MBMS in an RRC connected state or a non-RRC connected state ;
  • the communication module is further configured to receive an RRC connection establishment request sent by the terminal, where the RRC connection establishment request includes first indication information, and the first indication information is used to indicate the reason for the terminal establishment of this connection To receive MBMS.
  • mapping relationship is carried in an MBMS control message sent by the network device.
  • the mapping relationship includes: a mapping relationship between attribute information, status indication, and feedback indication corresponding to MBMS.
  • the communication module is also used for:
  • the communication module is further configured to:
  • the device further includes:
  • the processing module is configured to, when it is determined that the terminal fails to receive the first MBMS, control the communication module to retransmit the MBMS to the terminal, and the retransmitted MBMS includes the relevant information of the processing module based on the MBMS MBMS obtained after adjustment.
  • the mapping relationship further includes a feedback indication, and the feedback indication is used to indicate whether the terminal needs to feed back the reception situation of the first MBMS.
  • the non-RRC connected state includes: an RRC idle state and/or an RRC inactive state.
  • an electronic device in a fifth aspect, includes:
  • Memory used to store program instructions
  • the processor is configured to call the program instructions stored in the memory, and execute the steps included in the method in any one of the first aspect or the second aspect according to the obtained program instructions.
  • a computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make a computer execute any one of the first aspect or the second aspect
  • the method includes the steps.
  • a computer program product containing instructions which when the computer program product runs on a computer, causes the computer to execute the method for receiving the multimedia broadcast multicast service MBMS described in the various possible implementation manners.
  • the terminal first determines the first MBMS to be initiated, and then determines whether the terminal needs to receive the first MBMS in the RRC connected state or the non-RRC connected state according to the mapping relationship between the first MBMS and the corresponding status indication. If it is determined that the terminal needs to receive in the RRC connected state, the terminal judges whether the current state of the terminal is the RRC connected state or the non-RRC connected state. When the current state of the terminal is the non-RRC connected state, the terminal sends an RRC connection establishment request to the network device, and indicates in the request that the reason for this connection establishment is to receive MBMS.
  • the terminal when the terminal determines that the first MBMS needs to be received in the RRC connected state, it sends an RRC connection establishment request to the network device, and indicates in the connection establishment request that the reason for the connection establishment is to receive MBMS, so that the terminal can be in the RRC connection state. Receive the first MBMS in the connected state. In this way, when the terminal is in a non-RRC connection state and needs to receive MBMS with high reliability requirements, it can send a connection establishment request to the network device, and enter the RRC connection state to receive MBMS with high reliability requirements, thereby improving MBMS data transmission Reliability.
  • FIG. 1 is a schematic diagram of an application scenario provided by an embodiment of the application
  • Fig. 2 is a flow interaction diagram of a method for receiving and sending a multimedia broadcast multicast service MBMS according to an embodiment of the application;
  • FIG. 3 is a structural block diagram of an apparatus for receiving a multimedia broadcast multicast service MBMS provided by an embodiment of the application;
  • FIG. 4 is a structural block diagram of a device for sending a multimedia broadcast multicast service MBMS provided by an embodiment of the application;
  • FIG. 5 is a schematic structural diagram of an electronic device provided by an embodiment of the application.
  • This application provides a solution for receiving a multimedia broadcast multicast service MBMS.
  • the solution sends a connection establishment request to a network device when the terminal determines according to the mapping relationship that the first MBMS to be received needs to be received in the RRC connection state, and In the request, it is indicated that the reason for the connection establishment is to receive MBMS, so that the terminal can keep receiving the first MBMS in the RRC connection state, which improves the reliability of MBMS data transmission.
  • FIG. 1 is an application scenario that can be used in the technical solution of the embodiment of the application.
  • the terminal 10 and the network device 11 are included.
  • the terminal 10 may be a mobile phone, a tablet computer, a notebook computer, an Ultra-Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), etc.
  • the network device 11 may be a base station, and the base station may be a commonly used base station, an evolved base station (evolved Node Base station, eNB), or a network side device in a 5G system (for example, a next generation Node Base station, gNB) or transmission and reception point (Transmission and Reception Point) or cell and other equipment.
  • eNB evolved Node Base station
  • 5G system for example, a next generation Node Base station, gNB
  • transmission and reception point Transmission and Reception Point
  • the terminal 10 determines the first MBMS to be initiated, and determines that the terminal 10 receives the first MBMS in the RRC connected state or the non-RRC connected state according to the status indication in the mapping relationship. If it is determined according to the status indication that the terminal 10 receives the first MBMS in the RRC connected state, the terminal 10 determines whether it is currently in the non-RRC connected state. When the terminal 10 determines that it is currently in a non-RRC connection state, the terminal 10 sends an RRC connection establishment request to the network device 11, and the connection establishment request includes first indication information for indicating that the reason for this connection establishment is receiving MBMS. This allows the terminal 10 to enter the RRC connected state to receive when receiving MBMS with high reliability requirements, thereby enhancing the reliability of data transmission.
  • FIG. 2 is a flow interaction diagram of a method for receiving and sending a multimedia broadcast multicast service MBMS according to an embodiment of the application.
  • the flow chart of the method described in Figure 2 is as follows:
  • Step 201 The terminal determines the first MBMS to be initiated.
  • Step 202 The terminal receives the mapping relationship.
  • the mapping relationship may have a variety of situations, including but not limited to the following two mapping relationships.
  • the mapping relationship includes the mapping relationship between the attribute information corresponding to the MBMS and the RRC status indication.
  • the state indication corresponding to RRC may be specifically set to "RrcStateInd", for example.
  • the mapping relationship may be the following Table 1. It should be understood that Table 1 is only an example of the mapping relationship, not a limitation, and other forms of mapping relationship are also feasible.
  • Attribute information corresponding to MBMS RRC state indication (RrcStateInd)
  • the first MBMS high reliability
  • TRUE correct
  • Second MBMS low reliability
  • FALSE error
  • the attribute information corresponding to the MBMS may include the name of the MBMS and the corresponding reliability requirements.
  • the name of the MBMS service is the first MBMS, and it can be seen from Table 1 that the RRC status indication corresponding to the first MBMS is TRUE (correct), that is, the terminal is required to receive the first MBMS in the RRC connected state.
  • the name of the MBMS service is the second MBMS, and it can be known from Table 1 that the RRC status indication corresponding to the second MBMS is FALSE (error), that is, the terminal does not need to receive the second MBMS in the RRC connected state.
  • the second type of mapping relationship refers to the mapping relationship of attribute information, RRC status indication, and feedback indication corresponding to MBMS.
  • the feedback indication may be specifically set to "HARQFeedbackInd", for example.
  • the mapping relationship may be the following Table 2, which is the same as the foregoing Table 1. It should be understood that Table 2 is only an example of the mapping relationship, not a limitation, and other forms of mapping relationship are also feasible.
  • the name of the MBMS service is First MBMS, and it can be seen from Table 2 that the RRC status indicator corresponding to the first MBMS is TRUE.
  • the corresponding feedback indicator is "Yes or No", and when the corresponding feedback indicator is "Yes” , Indicating that the terminal is required to send a feedback message to the network device.
  • the corresponding feedback indication is "No", it indicates that there is no need for the terminal to send a feedback message to the network device.
  • the name of the MBMS service is second MBMS, and it can be seen from Table 2 that the RRC status indication corresponding to the second MBMS is FALSE, and the corresponding feedback indication is "No", indicating that the terminal is not required to send feedback messages to the network device. In other words, for MBMS with lower reliability requirements, there is no need for the terminal to send feedback messages to the network device.
  • the mapping relationship is carried in the MBMS control message received by the terminal.
  • the control message may be, for example, a system message or other MBMS related control messages.
  • the mapping relationship is pre-configured in each MBMS service.
  • the terminal needs to receive the mapping relationship from the network device, and the network device can send the mapping relationship in an air interface message.
  • the network device can select the terminal to report according to the current network resource status.
  • the network resource is abundant, it can instruct all the terminals to send feedback to the network device information.
  • the network equipment can select some terminals to send feedback messages to the network equipment, that is, the rest of the terminals do not need to send feedback messages to the network equipment.
  • the terminals that do not need to send feedback messages to the network equipment are determined according to the mapping relationship.
  • the feedback indication of is “No”, and the feedback indication determined by the terminal that needs to send a feedback message to the network device according to the mapping relationship is “Yes”.
  • mapping relationship is pre-configured in each MBMS service
  • the terminal does not need to receive the mapping relationship from the network device.
  • the feedback indication in the mapping relationship is also pre-configured. Therefore, for MBMS with high reliability requirements, all terminals need to send feedback messages to the network device. It should be noted that, since the mapping relationship is not necessarily sent by the network device, the receiving mapping relationship is represented by a dotted line in FIG. 2.
  • Step 203 The terminal determines the status indication corresponding to the first MBMS according to the mapping relationship.
  • the terminal determines according to Table 1 that the status indication corresponding to the first MBMS needs to be received in the RRC connected state, and the second MBMS does not need to be in the RRC connected state take over.
  • the terminal determines according to Table 2 that the status indication corresponding to the first MBMS needs to be received in the RRC connected state, and the corresponding feedback indication is that the terminal is required to send the reception of the first MBMS to the network device.
  • the feedback message of the situation and the second MBMS does not need to be received in the RRC connected state, and the corresponding feedback indication is that the terminal does not need to send a feedback message of the reception situation of the second MBMS to the network device.
  • the terminal when the terminal determines the first MBMS to be initiated, it can determine the RRC status indication corresponding to the first MBMS through the mapping relationship corresponding to the first MBMS, so as to determine whether it should be in the RRC connected state or the non-RRC connected state To receive the first MBMS.
  • Step 204 The terminal judges the current state.
  • the terminal if the terminal determines that it needs to receive the first MBMS in the RRC connected state, the terminal needs to determine its current state.
  • the current state of the terminal may be an RRC connected state or a non-RRC connected state.
  • the non-RRC connected state includes the RRC idle state and/or the RRC inactive state.
  • the RRC inactive state is an RRC state other than the RRC connected state and the RRC idle state. In principle, the RRC inactive state only acts on the access layer between the radio access network node and the mobile terminal, and does not involve the network. The non-access layer between the device and the core network.
  • Step 205 The terminal sends an RRC connection establishment request.
  • the terminal determines according to the mapping relationship that the first MBMS to be initiated needs to be received in the RRC connected state, and the terminal determines that its current state is non-RRC connected, the terminal needs to send a connection establishment message to the network device Request, and indicate in the connection establishment request that the reason for this connection establishment is to receive MBMS.
  • the RRC state indication in the mapping relationship of the first MBMS to be initiated by the terminal is that it needs to be received in the RRC connected state (that is, the RrcStateInd corresponding to the first MBMS is TRUE), and the terminal is currently in The state is the RRC idle state.
  • the specific setting method is as follows:
  • the RRC state indication in the mapping relationship of the first MBMS to be initiated by the terminal is that it needs to be received in the RRC connected state (that is, the RrcStateInd corresponding to the first MBMS is TRUE), and the terminal is currently located The state is RRC inactive state.
  • a connection recovery request for example, it can also be called a reconnection establishment request
  • the specific setting method is as follows:
  • the RRC state indication in the mapping relationship of the first MBMS to be initiated by the terminal is that it needs to be received in the RRC connected state (that is, the RrcStateInd corresponding to the first MBMS is True), and the current state of the terminal is In the RRC connection state, the terminal does not need to send a connection establishment request to the network device, and can directly receive the first MBMS in the current state.
  • the terminal when the state of the terminal is different, the connection establishment request sent to the network device is different, that is, the information element in the connection establishment cause is different. In this way, the terminal can inform the network device of its own state based on the reason for this connection establishment, so that the network device knows the state of the terminal, and configures resources for the terminal according to the state of the terminal.
  • Step 206 The network device sends a configuration message for instructing the terminal to connect to the network device to the terminal.
  • the network device after the network device receives the connection establishment request sent by the terminal, it can determine the state of the terminal from the reason for the connection establishment, and then allocate information such as channels that can be accessed to the terminal, and access the channel, etc.
  • the information configuration message is sent to the terminal.
  • the terminal sends different connection establishment requests to the network device according to different states, so that the network device can know the current state of the terminal, so as to reasonably configure resources.
  • Step 207 The terminal connects to the network device based on the configuration information, and enters the RRC connected state.
  • the terminal connects to the network device according to the configuration message sent by the network device, and enters the RRC connection state.
  • Step 208 The terminal receives the first MBMS.
  • Step 209 The terminal sends feedback information on the reception status of the first MBMS.
  • the terminal after receiving the first MBMS sent by the network device, the terminal sends feedback information on the reception of the first MBMS to the network device, so that the network device can determine whether the terminal has successfully received it based on the feedback information.
  • the first MBMS Specifically, the process for the terminal to feed back the reception of the first MBMS to the network equipment is as follows: the RRC layer of the terminal instructs the physical layer to turn on hybrid automatic for the MBMS service data scheduled by the G-RNTI mapped to the first MBMS Retransmission request (Hybrid Automatic Repeat Request, HARQ) feedback, when the physical layer receives the MBMS user data scheduled by G-RNTI, HARQ feedback is performed.
  • HARQ Hybrid Automatic Repeat Request
  • the terminal feeds back the reception status of the MBMS to be received to the network device, so that the network device can adjust the transmission scheme accordingly based on the feedback information.
  • the terminal may also determine whether the terminal is required to send a feedback message to the network device according to the mapping relationship corresponding to the first MBMS (for example, When the mapping relationship is the foregoing Table 2, the mapping relationship in Table 2 can be used to determine whether the terminal is required to send a feedback message to the network device).
  • the mapping relationship is the foregoing Table 2, the mapping relationship in Table 2 can be used to determine whether the terminal is required to send a feedback message to the network device.
  • the reception status of the first MBMS is fed back to the network device.
  • the terminal when the terminal receives the second MBMS sent by the network device in the RRC connection state, it can be seen from the above Table 2 that the mapping relationship corresponding to the second MBMS is that the reliability requirement of the second MBMS is low, and there is no need to connect in the RRC And the terminal does not need to send feedback information of the terminal’s reception of the second MBMS to the network device. At this time, although the second MBMS is received in the RRC connected state, the terminal does not need to feed back the reception status of the second MBMS to the network device.
  • the terminal selectively enters the RRC_CONNECTED (connected) state according to the different reliability requirements of different MBMSs, and performs HARQ feedback, which meets the different reliability requirements of different MBMSs.
  • Step 210 When determining that the terminal fails to receive the first MBMS, the network device retransmits the MBMS to the terminal.
  • the terminal feeds back the reception of the first MBMS to the network device.
  • the network device determines that the terminal has failed to receive the first MBMS according to the feedback information sent by the terminal, the network device responds to the first MBMS according to the feedback from the terminal.
  • the transmission plan is adjusted.
  • the network device retransmits the old data (that is, retransmits the data that the terminal fails to receive) on the data of the first MBMS that the terminal fails to receive.
  • the network device adjusts the transmission scheme for the first MBMS, such as adjusting the transmission power, or adjusting the modulation and coding scheme (Modulation and Coding Scheme, MCS), etc., and then adopts the new transmission scheme transfer data.
  • the transmission scheme for the first MBMS such as adjusting the transmission power, or adjusting the modulation and coding scheme (Modulation and Coding Scheme, MCS), etc.
  • the network device retransmits or adjusts the transmission scheme according to the terminal's feedback on the reception of the first MBMS data, which can effectively improve the reliability of data transmission.
  • the terminal determining the status indication corresponding to the first MBMS according to the mapping relationship also includes multiple situations.
  • the following examples are used for description.
  • step 203 when the terminal determines that the status indication corresponding to the first MBMS is the non-RRC connected state, and the terminal determines that its current state is the non-RRC connected state, the terminal does not need to switch the current state. At this time, The terminal does not need to send the request information for switching the current state to the network device, and directly receives the first MBMS in the current state.
  • step 203 when the terminal determines that the status indication corresponding to the first MBMS is the non-RRC connected state, and the terminal determines that its current state is the RRC connected state, the terminal can choose to receive the first MBMS in the RRC connected state. MBMS, you can also choose to switch the current state to non-RRC connected state to receive. If the terminal chooses to receive the first MBMS in the current state (that is, the RRC connected state), then after the reception is completed, the terminal does not need to send a feedback message on the reception of the first MBMS to the network device (it can be determined according to the mapping relationship) , MBMS services received in the non-RRC connection state do not need to send feedback messages to the network equipment).
  • the terminal If the terminal chooses to switch the current state to the non-RRC connected state, the terminal sends a connection release request to the network device, and indicates in the request whether the current state needs to be switched to the RRC idle state or the RRC inactive state. After the terminal state is successfully switched, the first MBMS is received in the switched state (RRC idle state or RRC inactive state).
  • step 203 when the terminal determines that the status indication corresponding to the first MBMS is the RRC connected state, and the terminal determines that the current state is the RRC connected state, the terminal can directly receive the first MBMS in the current state. Need to send a connection establishment request to the network device.
  • step 203 when the terminal determines that the status indication corresponding to the first MBMS is the RRC connected state, and the terminal determines that the current state is the non-RRC connected state, the terminal may perform step 205 to step 210.
  • the terminal when the terminal receives the MBMS service with high reliability requirements, it can enter the RRC connected state to receive and send a feedback message on the MBMS reception to the network device, so that the network device can timely when the terminal fails to receive Adjust the transmission plan to improve the reliability of data transmission.
  • the embodiments of the present application provide a multimedia broadcast multicast service MBMS receiving device, which can realize the corresponding functions of the aforementioned multimedia broadcast multicast service MBMS receiving method.
  • the receiving device of the multimedia broadcast multicast service MBMS may be a hardware structure, a software module, or a hardware structure plus a software module.
  • the receiving device of the multimedia broadcast multicast service MBMS can be realized by a chip system, and the chip system can be composed of a chip, and can also include a chip and other discrete devices.
  • the receiving device of the MBMS of the multimedia broadcast multicast service includes a processing module 301 and a communication module 302. in:
  • the processing module 301 is used to determine the first MBMS to be initiated
  • the processing module 301 is further configured to determine a status indicator corresponding to the first MBMS according to the mapping relationship, where the status indicator is used to instruct the terminal to receive the first MBMS in an RRC connected state or a non-RRC connected state;
  • the processing module 301 is further configured to determine whether the terminal is currently in a non-RRC connected state when the status indication is used to instruct the terminal to receive the first MBMS in the RRC connected state;
  • the communication module 302 is configured to send an RRC connection establishment request to the network device when the terminal is currently in a non-RRC connection state, where the RRC connection establishment request includes first indication information, and the first indication information is used to indicate this The reason for the establishment of this connection is to receive MBMS.
  • the mapping relationship is carried in the MBMS control message received by the terminal; or, the mapping relationship is pre-configured.
  • the mapping relationship includes: a mapping relationship between attribute information, status indication, and feedback indication corresponding to MBMS.
  • the communication module 302 is further configured to:
  • the processing module 301 is further configured to connect to the network device based on the configuration message and enter the RRC connected state;
  • the communication module 302 is further configured to receive the first MBMS sent by the network device.
  • the communication module 302 is further configured to:
  • the communication module 302 is further configured to:
  • the processing module 301 determines that the reception of the first MBMS fails, the MBMS retransmitted by the network device is received; the retransmitted MBMS includes the network device after adjusting based on the relevant information of the first MBMS MBMS.
  • processing module 301 is further configured to:
  • the communication module 302 After the communication module 302 receives the first MBMS, the communication module 302 is further configured to:
  • the processing module 301 determines that the terminal needs to feed back the reception status of the first MBMS, it feeds back the reception status of the first MBMS to the network device.
  • the non-RRC connected state includes: an RRC idle state and/or an RRC inactive state.
  • the embodiments of the present application provide a multimedia broadcast multicast service MBMS sending device.
  • the multimedia broadcast multicast service MBMS sending device can realize the functions corresponding to the aforementioned multimedia broadcast multicast service MBMS sending method.
  • the sending device of the multimedia broadcast multicast service MBMS can be a hardware structure, a software module, or a hardware structure plus a software module.
  • the sending device of the multimedia broadcast multicast service MBMS can be realized by a chip system, and the chip system can be composed of a chip, and can also include a chip and other discrete devices.
  • the sending device of the multimedia broadcast multicast service MBMS includes a communication module 401 and a processing module 402. in:
  • the communication module 401 is configured to send a mapping relationship to a terminal, where the mapping relationship includes a status indicator corresponding to the first MBMS, and the status indicator is used to instruct the terminal to receive the first MBMS in an RRC connected state or a non-RRC connected state.
  • the mapping relationship includes a status indicator corresponding to the first MBMS, and the status indicator is used to instruct the terminal to receive the first MBMS in an RRC connected state or a non-RRC connected state.
  • the communication module 401 is further configured to receive an RRC connection establishment request sent by the terminal.
  • the RRC connection establishment request includes first indication information, and the first indication information is used to indicate the current connection establishment of the terminal.
  • the reason is receiving MBMS.
  • mapping relationship is carried in an MBMS control message sent by the network device.
  • the mapping relationship includes: a mapping relationship between attribute information, status indication, and feedback indication corresponding to MBMS.
  • the communication module 401 is further configured to:
  • the communication module 401 is further configured to:
  • the device further includes:
  • the processing module 402 is configured to, when it is determined that the terminal fails to receive the first MBMS, control the communication module to retransmit the MBMS to the terminal, and the retransmitted MBMS includes the correlation of the processing module based on the MBMS The MBMS obtained after the information is adjusted.
  • the mapping relationship further includes a feedback indication, and the feedback indication is used to indicate whether the terminal needs to feed back the reception situation of the first MBMS.
  • the non-RRC connected state includes: an RRC idle state and/or an RRC inactive state.
  • the division of modules in the embodiments of this application is illustrative, and it is only a logical function division. In actual implementation, there may be other division methods.
  • the functional modules in the various embodiments of this application can be integrated into one process. In the device, it can also exist alone physically, or two or more modules can be integrated into one module.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules.
  • an embodiment of the present application provides an electronic device.
  • the electronic device includes at least one processor 501 and a memory 502 connected to the at least one processor.
  • the specific connection medium between the processor 501 and the memory 502 is not limited in the embodiment of the present application.
  • the processor 501 and the memory 502 are connected through a bus 500 as an example.
  • the bus 500 is represented by a thick line in FIG. .
  • the bus 500 can be divided into an address bus, a data bus, a control bus, etc. For ease of presentation, only a thick line is used in FIG. 5 to represent it, but it does not mean that there is only one bus or one type of bus.
  • the memory 502 stores instructions that can be executed by at least one processor 501.
  • the at least one processor 501 can execute the aforementioned multimedia broadcast multicast service MBMS receiving or sending method The steps included in.
  • the processor 501 is the control center of the electronic device, which can use various interfaces and lines to connect various parts of the entire electronic device. By running or executing instructions stored in the memory 502 and calling data stored in the memory 502, the electronic device The various functions and processing data of the electronic equipment can be used to monitor the electronic equipment as a whole.
  • the processor 501 may include one or more processing units, and the processor 501 may integrate an application processor and a modem processor, where the application processor mainly processes operating systems and application programs, and the modem processor Mainly deal with wireless communication. It can be understood that the foregoing modem processor may not be integrated into the processor 501.
  • the processor 501 and the memory 502 may be implemented on the same chip, and in some embodiments, they may also be implemented on separate chips.
  • the processor 501 may be a general-purpose processor, such as a central processing unit (CPU), a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, Implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of the present application.
  • the general-purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the method for receiving or sending the multimedia broadcast multicast service MBMS disclosed in the embodiments of the present application may be directly executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the memory 502 can be used to store non-volatile software programs, non-volatile computer-executable programs, and modules.
  • the memory 502 may include at least one type of storage medium, for example, may include flash memory, hard disk, multimedia card, card-type memory, random access memory (Random Access Memory, RAM), static random access memory (Static Random Access Memory, SRAM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), magnetic memory, disk , CD, etc.
  • the memory 502 is any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto.
  • the memory 502 in the embodiment of the present application may also be a circuit or any other device capable of realizing a storage function for storing program instructions and/or data.
  • the code corresponding to the method for receiving or sending the multimedia broadcast multicast service MBMS introduced in the foregoing embodiment can be solidified into the chip, so that the chip can execute the foregoing multimedia broadcast group during operation.
  • the steps of the method for receiving or sending the broadcast service MBMS, and how to design and program the processor 501 are techniques known to those skilled in the art, and will not be repeated here.
  • the embodiments of the present application also provide a computer-readable storage medium, the computer-readable storage medium stores computer instructions, and when the computer instructions run on the computer, the computer executes the aforementioned multimedia broadcast and multicast The steps of the business MBMS receiving or sending method.
  • various aspects of the method for receiving or sending the multimedia broadcast multicast service MBMS provided in this application can also be implemented in the form of a program product, which includes program code, when the program product runs on an electronic device At the time, the program code is used to make the detection device execute the steps in the method for receiving or sending the multimedia broadcast multicast service MBMS described above in this specification according to various exemplary embodiments of the present application.
  • this application can be provided as methods, systems, or computer program products. Therefore, this application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, this application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
  • the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
  • These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
  • the instructions provide steps for implementing the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

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Abstract

本申请实施例提供一种多媒体广播组播业务MBMS的接收方法及装置。用于提升MBMS数据传输的可靠性。所述方法包括：确定要发起的第一MBMS；根据映射关系确定所述第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；若所述状态指示用于指示所述终端在RRC连接态接收所述第一MBMS，所述终端判断当前是否处于非RRC连接态；若所述终端当前处于非RRC连接态，则向网络设备发送RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示本次连接建立的原因为接收MBMS。

Description

一种多媒体广播组播业务MBMS的接收方法及装置
相关申请的交叉引用
本申请要求在2020年02月03日提交中国专利局、申请号为202010079057.0、申请名称为“一种多媒体广播组播业务MBMS的接收方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及移动通信领域，尤其涉及一种多媒体广播组播业务MBMS的接收方法及装置。
背景技术
随着通信技术的发展及需求的丰富，以及第五代通信技术的标准制定日趋完善。多媒体广播组播业务(Multimedia Broadcast Multicast Service，MBMS)技术作为一种高效利用物理资源的手段，将在5G R17版本中应用于车联网、公共安全等技术领域。
目前，对于MBMS业务的应用场景，MBMS数据的传输是采用网络单次传输，终端被动接收的方案。即无论是终端处于无线资源控制(Radio Resource Control，RRC)连接态或者非RRC连接态下，都可能被动接收MBMS数据。但是，在RRC连接态下接收时，可能会导致数据接收成功率降低。尤其对于可靠性要求比较高的MBMS服务，终端无法成功接收时，将影响终端业务正常运行。
发明内容
本申请实施例提供一种多媒体广播组播业务MBMS的接收方法及装置。用于提升MBMS数据传输的可靠性。
第一方面，提供一种多媒体广播组播业务MBMS的接收方法，所述方法 包括：
确定要发起的第一MBMS；
根据映射关系确定所述第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；
若所述状态指示用于指示所述终端在RRC连接态接收所述第一MBMS，所述终端判断当前是否处于非RRC连接态；
若所述终端当前处于非RRC连接态，则向网络设备发送RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示本次连接建立的原因为接收MBMS。
可选的，所述映射关系是所述终端接收的MBMS控制消息中携带的；或者，所述映射关系是预先配置的。
可选的，所述映射关系包括：MBMS对应的属性信息、状态指示、反馈指示之间的映射关系。
可选的，所述方法还包括：
接收所述网络设备发送的用于指示所述终端连接到所述网络设备的配置消息；
基于所述配置消息，连接到所述网络设备，进入RRC连接态；
接收所述网络设备发送的所述第一MBMS。
可选的，在所述接收所述第一MBMS之后，还包括：
发送用于指示所述终端是否成功接收到所述第一MBMS的反馈信息。
可选的，所述方法还包括：
确定接收所述第一MBMS失败时，接收所述网络设备重传的MBMS；所述重传的MBMS包括所述网络设备基于所述第一MBMS的相关信息进行调整后得到的MBMS。
可选的，所述方法还包括：
根据所述映射关系判断是否需要所述终端反馈所述第一MBMS的接收情况；
在所述接收所述第一MBMS之后，还包括：
确定需要所述终端反馈所述第一MBMS的接收情况时，向所述网络设备反馈所述第一MBMS的接收情况。
可选的，非RRC连接态包括：RRC空闲态和/或RRC非激活态。
第二方面，提供一种多媒体广播组播业务MBMS的发送方法，所述方法包括：
向终端发送映射关系，所述映射关系中包括第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；
接收所述终端发送的RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示所述终端本次连接建立的原因为接收MBMS。
可选的，所述映射关系携带于所述网络设备发送的MBMS控制消息中。
可选的，所述映射关系包括：MBMS对应的属性信息、状态指示、反馈指示之间的映射关系。
可选的，所述方法还包括：
向所述终端发送用于指示所述终端连接到所述网络设备的配置消息，以使所述终端基于所述配置消息，连接到所述网络设备，进入RRC连接态；
向所述终端发送所述第一MBMS。
可选的，在所述向所述终端发送所述第一MBMS之后，还包括：
接收所述终端发送的用于指示所述终端是否成功接收到所述第一MBMS的反馈信息。
可选的，所述方法还包括：
在确定所述终端接收所述第一MBMS失败时，向所述终端重传MBMS，所述重传的MBMS包括所述网络设备基于所述MBMS的相关信息进行调整后得到的MBMS。
可选的，所述映射关系中还包括反馈指示，所述反馈指示用于指示是否 需要所述终端反馈所述第一MBMS的接收情况。
可选的，非RRC连接态包括：RRC空闲态和/或RRC非激活态。
第三方面，提供一种多媒体广播组播业务MBMS的接收装置，所述装置包括：
处理模块，用于确定要发起的第一MBMS；
所述处理模块，还用于根据映射关系确定所述第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；
所述处理模块，还用于在所述状态指示用于指示所述终端在RRC连接态接收所述第一MBMS时，判断当前是否处于非RRC连接态；
通信模块，用于在所述终端当前处于非RRC连接态时，向网络设备发送RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示本次连接建立的原因为接收MBMS。
可选的，所述映射关系是所述终端接收的MBMS控制消息中携带的；或者，所述映射关系是预先配置的。
可选的，所述映射关系包括：MBMS对应的属性信息、状态指示、反馈指示之间的映射关系。
可选的，所述通信模块还用于：接收所述网络设备发送的用于指示所述终端连接到所述网络设备的配置消息；
所述处理模块还用于：基于所述配置消息，连接到所述网络设备，进入RRC连接态；
所述通信模块还用于：接收所述网络设备发送的所述第一MBMS。
可选的，所述通信模块在接收所述第一MBMS之后，所述通信模块还用于：发送用于指示所述终端是否成功接收到所述第一MBMS的反馈信息。
可选的，所述通信模块还用于：
在所述处理模块确定接收所述第一MBMS失败时，接收所述网络设备重传的MBMS；所述重传的MBMS包括所述网络设备基于所述第一MBMS的 相关信息进行调整后得到的MBMS。
可选的，所述处理模块还用于：
根据所述映射关系判断是否需要所述终端反馈所述第一MBMS的接收情况；
在所述通信模块接收所述第一MBMS之后，所述通信模块还用于：
在所述处理模块确定需要所述终端反馈所述第一MBMS的接收情况时，向所述网络设备反馈所述第一MBMS的接收情况。
可选的，非RRC连接态包括：RRC空闲态和/或RRC非激活态。
第四方面，提供一种多媒体广播组播业务MBMS的发送装置，所述装置包括：
通信模块，用于向终端发送映射关系，所述映射关系中包括第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；
所述通信模块，还用于接收所述终端发送的RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示所述终端本次连接建立的原因为接收MBMS。
可选的，所述映射关系携带于所述网络设备发送的MBMS控制消息中。
可选的，所述映射关系包括：MBMS对应的属性信息、状态指示、反馈指示之间的映射关系。
可选的，所述通信模块还用于：
向所述终端发送用于指示所述终端连接到所述网络设备的配置消息，以使所述终端基于所述配置消息，连接到所述网络设备，进入RRC连接态；
向所述终端发送所述第一MBMS。
可选的，在所述通信模块向所述终端发送所述第一MBMS之后，所述通信模块还用于：
接收所述终端发送的用于指示所述终端是否成功接收到所述第一MBMS的反馈信息。
可选的，所述装置还包括：
处理模块，用于在确定所述终端接收所述第一MBMS失败时，控制所述通信模块向所述终端重传MBMS，所述重传的MBMS包括所述处理模块基于所述MBMS的相关信息进行调整后得到的MBMS。
可选的，所述映射关系中还包括反馈指示，所述反馈指示用于指示是否需要所述终端反馈所述第一MBMS的接收情况。
可选的，非RRC连接态包括：RRC空闲态和/或RRC非激活态。
第五方面，提供一种电子设备，所述电子设备包括：
存储器，用于存储程序指令；
处理器，用于调用所述存储器中存储的程序指令，按照获得的程序指令执行第一方面或第二方面中任一所述的方法包括的步骤。
第六方面，提供一种计算可读存储介质，所述计算可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使计算机执行第一方面或第二方面中任一所述的方法包括的步骤。
第七方面，提供一种包含指令的计算机程序产品，当所述计算机程序产品在计算机上运行时，使得计算机执行上述各种可能的实现方式中所描述的多媒体广播组播业务MBMS的接收方法。
在本申请实施例中，终端首先确定要发起的第一MBMS，然后根据该第一MBMS与对应的状态指示的映射关系确定终端需要在RRC连接态还是非RRC连接态接收该第一MBMS。如果确定终端需要在RRC连接态接收，则终端判断自身当前所处的状态是RRC连接态还是非RRC连接态。在终端当前所处的状态是非RRC连接态时，终端向网络设备发送RRC连接建立请求，并在该请求中指示本次连接建立的原因是接收MBMS。
也就是说，当终端确定第一MBMS需要在RRC连接态下接收时，向网络设备发送RRC连接建立请求，并在连接建立请求中注明连接建立的原因为接收MBMS，从而使得终端可以在RRC连接态下接收该第一MBMS。这样，当终端处于非RRC连接态，且需要接收可靠性要求比较高的MBMS时，可 以向网络设备发送连接建立请求，进入RRC连接态接收对可靠性要求较高的MBMS，从而提升MBMS数据传输的可靠性。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例。
图1为本申请实施例提供的一种应用场景示意图；
图2为本申请实施例提供的一种多媒体广播组播业务MBMS的接收和发送方法的流程交互图；
图3为本申请实施例提供的多媒体广播组播业务MBMS的接收装置的结构框图；
图4为本申请实施例提供的多媒体广播组播业务MBMS的发送装置的结构框图；
图5为本申请实施例提供的电子设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚明白，下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。在不冲突的情况下，本申请中的实施例及实施例中的特征可以相互任意组合。并且，虽然在流程图中示出了逻辑顺序，但是在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤。
本申请的说明书和权利要求书及上述附图中的术语“第一”和“第二”是用于区别不同对象，而非用于描述特定顺序。此外，术语“包括”以及它 们任何变形，意图在于覆盖不排他的保护。例如包含了一系列步骤或单元的过程、方法、系统、产品或设备没有限定于已列出的步骤或单元，而是可选地还包括没有列出的步骤或单元，或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。本申请中的“多个”可以表示至少两个，例如可以是两个、三个或者更多个，本申请实施例不做限制。
另外，本文中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，在不做特别说明的情况下，一般表示前后关联对象是一种“或”的关系。
为了便于理解，下面先对本申请实施例的技术背景进行介绍。
如前所述的，如何提升MBMS数据传输的可靠性是目前亟待解决的技术问题。目前，终端在接收网络设备发送的MBMS数据时，不会考虑自身所处的状态，无论终端是处于RRC连接态或者非RRC连接态，都是被动的接收。因此，在终端接收可靠性要求较高的MBMS数据时，可能会出现接收失败的情况，从而影响终端业务的正常运行，以致于无法满足该MBMS数据传输时对可靠性要求较高的条件。
为了提升MBMS数据传输的可靠性。本申请提供了一种多媒体广播组播业务MBMS的接收方法的方案，该方案在终端根据映射关系确定要接收的第一MBMS需要在RRC连接态下接收时，向网络设备发送连接建立请求，并在该请求中注明连接建立的原因是接收MBMS，使得终端可以保持在RRC连接态下接收该第一MBMS，提升MBMS数据传输的可靠性。
在介绍完本申请实施例的设计思想后，下面对本申请实施例的技术方案能够适用的应用场景做一些简单的介绍，需要说明的是，以下介绍的应用场景仅用于说明本申请实施例而非限定。在具体实施时，可以根据实际需要灵活地应用本申请实施例提供的技术方案。
请参见图1所示，图1为本申请实施例的技术方案能够使用的一种应用场景。在该应用场景中，包括终端10和网络设备11。其中，终端10可以为 手机、平板电脑、笔记本电脑、超级移动个人计算机(Ultra-Mobile Personal Computer，UMPC)、上网本或者个人数字助理(Personal Digital Assistant，PDA)等等。网络设备11可以为基站，且基站可以是通常所用的基站，也可以是演进型基站(evolved Node Base station，eNB)，还可以是5G系统中的网络侧设备(例如下一代基站(next generation Node Base station，gNB)或发送和接收点(Transmission and Reception Point))或者小区cell等设备。
在本申请实施例中，终端10确定要发起的第一MBMS，根据该映射关系中的状态指示确定终端10在RRC连接态或非RRC连接态接收所述第一MBMS。如果根据状态指示确定终端10在RRC连接态接收所述第一MBMS，则所述终端10判断自身当前是否处于非RRC连接态。在终端10确定当前处于非RRC连接态时，终端10向网络设备11发送RRC连接建立请求，在该连接建立请求中包含第一指示信息，用于指示本次连接建立的原因为接收MBMS。使得终端10在接收可靠性要求较高的MBMS时可以进入RRC连接态接收，从而增强数据传输的可靠性。
下面结合说明书附图介绍本申请实施例提供的技术方案。
请参见图2所示，图2为本申请实施例提供的一种多媒体广播组播业务MBMS的接收和发送方法的流程交互图。图2所述的方法流程图如下：
步骤201：终端确定要发起的第一MBMS。
步骤202：终端接收映射关系。
在本申请实施例中，映射关系可以有多种情况，包括但不限定于如下两种映射关系。
第一种，映射关系中包括MBMS对应的属性信息和RRC状态指示的映射关系。在该映射关系中，RRC对应的状态指示例如具体可以设置为“RrcStateInd”。示例性的，所述映射关系可以是下述表1，应理解表1仅是映射关系的一种举例，而非限定，其它形式的映射关系也是可行的。
MBMS对应的属性信息 RRC状态指示(RrcStateInd)
第一MBMS(可靠性高) TRUE(正确)
第二MBMS(可靠性低) FALSE(错误)
表1
MBMS对应的属性信息可以包括MBMS的名称和对应的可靠性要求等。例如，MBMS服务的名称为第一MBMS，通过上述表1可知第一MBMS对应的RRC状态指示为TRUE(正确)，即需要终端在RRC连接态接收第一MBMS。又例如，MBMS服务的名称为第二MBMS，通过上述表1可知第二MBMS对应的RRC状态指示为FALSE(错误)，即不需要终端在RRC连接态接收第二MBMS。
第二种，映射关系是指MBMS对应的属性信息、RRC状态指示、反馈指示的映射关系。在该映射关系中，反馈指示例如可以具体设置为“HARQFeedbackInd”。示例性的，所述映射关系可以是下述表2，与上述表1相同，应理解表2也仅是映射关系的一种举例，而非限定，其它形式的映射关系也是可行的。
Figure PCTCN2020135052-appb-000001
表2
例如，MBMS服务的名称为第一MBMS，通过上述表2可知第一MBMS对应的RRC状态指示为TRUE，此时对应的反馈指示为“是或否”，当对应的反馈指示为“是”时，表明需要终端向网络设备发送反馈消息。当对应的反馈指示为“否”时，表明不需要终端向网络设备发送反馈消息。
又例如，MBMS服务的名称为第二MBMS，通过上述表2可知第二MBMS对应的RRC状态指示为FALSE，对应的反馈指示为“否”，表明不需要终端 向网络设备发送反馈消息。也就是说，对于可靠性要求较低的MBMS，不需要终端向网络设备发送反馈消息。
在一种可能的实施方式中，该映射关系是终端接收的MBMS控制消息中携带的。其中，所述控制消息例如可以是系统消息或者其它MBMS相关控制消息。在另一种可能的实施方式中，该映射关系是在每个MBMS业务中预先配置好的。
在该映射关系是终端接收的MBMS控制消息中携带的情况下，终端需要从网络设备处接收该映射关系，以及网络设备能够在空口消息中发送该映射关系。其中，网络设备在发送映射关系之前，对于可靠性要求较高的MBMS，网络设备可以根据当前的网络资源状况选择进行上报的终端，当网络资源丰富时，可以指示所有的终端向网络设备发送反馈消息。当网络资源紧张时，网络设备可以选择部分终端向网络设备发送反馈消息，即其余部分终端不需要向网络设备发送反馈消息，此时，不需要向网络设备发送反馈消息的终端根据该映射关系确定的反馈指示为“否”，需要向网络设备发送反馈消息的终端根据该映射关系确定的反馈指示为“是”。
在该映射关系是每个MBMS业务中预先配置好的情况下，终端则不需要从网络设备处接收该映射关系。其中，该映射关系中的反馈指示也是预先配置好的，因此对于可靠性要求较高的MBMS，需要所有的终端都向网络设备发送反馈消息。需要说明的是，由于该映射关系不一定是由网络设备发送的，因此，接收映射关系在图2中通过虚线的形式来表示。
步骤203：终端根据映射关系，确定第一MBMS对应的状态指示。
在本申请实施例中，在映射关系是上述表1的情况下，终端根据表1确定第一MBMS对应的状态指示为需要在RRC连接态下接收，以及第二MBMS不需要在RRC连接态下接收。在映射关系是上述表2的情况下，终端根据表2确定第一MBMS对应的状态指示为需要在RRC连接态下接收，对应的反馈指示为需要终端向网络设备发送对该第一MBMS的接收情况的反馈消息，以及第二MBMS不需要在RRC连接态下接收，对应的反馈指示为不需要终端 向网络设备发送对该第二MBMS的接收情况的反馈消息。
在具体的实施过程中，当终端确定要发起的第一MBMS时，可以通过该第一MBMS对应的映射关系确定第一MBMS对应的RRC状态指示，从而确定应该在RRC连接态或非RRC连接态下接收该第一MBMS。
步骤204：终端判断当前所处的状态。
在本申请实施例中，如果终端确定出需要在RRC连接态下接收第一MBMS，则终端需要判断自身当前所处的状态。其中，终端当前所处的状态可能是RRC连接态，也可能是非RRC连接态。非RRC连接态包括RRC空闲态和/或RRC非激活态。其中，RRC非激活态是RRC连接态和RRC空闲态之外的一种RRC状态，原则上，RRC非激活态仅作用于无线接入网节点与移动终端之间的接入层，不涉及网络设备与核心网之间的非接入层。
步骤205：终端发送RRC连接建立请求。
在本申请实施例中，若终端根据映射关系确定要发起的第一MBMS需要在RRC连接态下接收，且终端确定自身当前所处的状态是非RRC连接态，则终端需要向网络设备发送连接建立请求，并在该连接建立请求中注明本次连接建立的原因为接收MBMS。
在一种可能的实施方式中，终端要发起的第一MBMS的映射关系中关于RRC状态指示为需要在RRC连接态下接收(即第一MBMS对应的RrcStateInd为TRUE)，而终端当前所处的状态是RRC空闲态。此时，终端向网络设备发送连接建立请求，并在连接建立请求RRCConnectionRequest(RRC连接建立请求)中添加本次连接建立的原因为接收MBMS(例如具体设置为RRCConnectionRequest(EstablishmentCause＝＝MbmsServiceReceiving))。
例如，具体设置方式如下：
EstablishmentCause::＝ENUMERATED{
emergency,highPriorityAccess,mt-Access,mo-Signalling,
mo-Data,mo-VoiceCall,mo-VideoCall,mo-SMS,mps-PriorityAccess,
mcs-PriorityAccess,
MbmsServiceReceiving,
spare5,spare4,spare3,spare2,spare1}。
在另一种可能的实施方式中，终端要发起的第一MBMS的映射关系中关于RRC状态指示为需要在RRC连接态下接收(即第一MBMS对应的RrcStateInd为TRUE)，而终端当前所处的状态是RRC非激活态。此时，终端向网络设备发送连接恢复请求(例如也可以称作是重连接建立请求)，并在重连接建立请求RRCResumeRequest或RRCResumeRequest1中将信元“resumeCause”设置为新的原因为接收MBMS，(例如具体可以设置为RRCResumeRequest/RRCResumeRequest1(resumeCause＝MbmsServiceReceiving))。
例如，具体设置方式如下：
ResumeCause::＝ENUMERATED{
emergency,highPriorityAccess,mt-Access,mo-Signalling,
mo-Data,mo-VoiceCall,mo-VideoCall,mo-SMS,rna-Update,mps-PriorityAccess,
mcs-PriorityAccess,
MbmsServiceReceiving,
spare1,spare2,spare3,spare4,spare5}。
在其它的实施例中，终端要发起的第一MBMS的映射关系中关于RRC状态指示为需要在RRC连接态下接收(即第一MBMS对应的RrcStateInd为True)，且终端当前所处的状态是RRC连接态，则终端不需要向网络设备发送连接建立请求，可以直接在当前状态下接收所述第一MBMS。
在具体的实施过程中，终端所处的状态不同时，向网络设备发送的连接建立请求不相同，即连接建立原因中的信元不同。这样，使得终端可以通过本次连接建立原因将自身的所处的状态告知网络设备，以使网络设备知晓终端所处的状态，并根据终端所处的状态为终端配置资源。
步骤206：网络设备向终端发送用于指示终端连接到网络设备的配置消息。
在本申请实施例中，网络设备接收到终端发送的连接建立请求之后，可以从连接建立原因中确定终端所处的状态，然后为终端分配可以接入的信道等信息，并将接入信道等信息的配置消息发送给终端。
在具体的实施过程中，终端根据不同的状态向网络设备发送不同的连接建立请求，使得网络设备可以知晓终端当前所处的状态，从而合理的进行资源配置。
步骤207：终端基于所述配置信息连接到网络设备，进入RRC连接态。
在本申请实施例中，终端根据网络设备发送的配置消息，连接到网络设备，进入RRC连接态。
步骤208：终端接收第一MBMS。
步骤209：终端发送针对第一MBMS的接收情况的反馈信息。
在本申请实施例中，终端在接收网络设备发送的第一MBMS之后，将对第一MBMS的接收情况的反馈信息发送给网络设备，以使网络设备可以根据该反馈信息判断终端是否成功接收到该第一MBMS。具体的，终端将对第一MBMS的接收情况向网络设备进行反馈的过程为：终端的RRC层指示物理层对于映射到该第一MBMS对应的G-RNTI所调度的MBMS服务数据要开启混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)反馈，物理层接收到G-RNTI调度的MBMS用户数据时，进行HARQ反馈。
在具体的实施过程中，终端将对要接收的MBMS的接收情况反馈给网络设备，使网络设备可以根据该反馈信息对传输方案进行相应调整。
在一种可能的实施方式中，终端在向网络设备发送对第一MBMS的接收情况的反馈信息之前，还可以根据第一MBMS对应的映射关系来判断是否需要终端向网络设备发送反馈消息(例如映射关系是上述表2时，可以根据表2的映射关系确定是否需要终端向网络设备发送反馈消息)。在确定需要终端反馈对第一MBMS的接收情况时，向网络设备反馈对第一MBMS的接收情况。例如，当终端在RRC连接态时接收了网络设备发送的第二MBMS，通过上述表2可知，该第二MBMS对应的映射关系为该第二MBMS的可靠性要求较 低，不需要在RRC连接态下接收，以及终端不需要向网络设备发送终端对该第二MBMS的接收情况的反馈信息。此时，尽管第二MBMS是在RRC连接态下进行了接收，终端也不需要向网络设备反馈对第二MBMS的接收情况。
在具体的实施过程中，终端根据不同MBMS对可靠性的不同要求，选择性进入RRC_CONNECTED(连接)状态，并进行HARQ反馈，满足了不同MBMS的不同可靠性需求。
步骤210：网络设备在确定终端接收第一MBMS失败时，向终端重传MBMS。
在本申请实施例中，终端将对第一MBMS的接收情况反馈给网络设备，当网络设备根据终端发送的反馈信息确定终端对第一MBMS接收失败时，网络设备根据终端的反馈对第一MBMS的传输方案进行调整。在一种可能的实施方式中，网络设备对终端反馈接收失败的第一MBMS的数据进行旧数据重传(即将终端接收失败的数据重传)。在另一种可能的实施方式中，网络设备调整对该第一MBMS的传输方案，例如是调整发射功率，或者调整调制和编码方案(Modulation and Coding Scheme，MCS)等，然后通过新的传输方案传输数据。
在具体的实施过程中，网络设备根据终端对第一MBMS数据的接收情况的反馈进行重传或者调整传输方案，可以有效提高数据传输的可靠性。
在其它的实施例中，终端根据映射关系确定第一MBMS对应的状态指示还包括多种情况，为了便于理解，以下举例进行说明。
情况1
上述实施例中步骤203中终端确定第一MBMS对应的状态指示为非RRC连接态时，且终端确定自身当前所处的状态为非RRC连接态，则终端不需要切换当前的状态，此时，终端不需要向网络设备发送切换当前状态的请求信息，直接在当前状态下接收该第一MBMS。
情况2
上述实施例中步骤203中终端确定第一MBMS对应的状态指示为非RRC 连接态时，且终端确定自身当前所处的状态为RRC连接态，则终端可以选择在RRC连接态下接收该第一MBMS，也可以选择将当前的状态切换到非RRC连接态接收。若终端选择在当前的状态(即RRC连接态)下接收该第一MBMS，那么终端在接收完成之后，不需要向网络设备发送对该第一MBMS的接收情况的反馈消息(根据映射关系可以确定，在非RRC连接态下接收的MBMS业务，不需要向网络设备发送反馈消息)。若终端选择将当前的状态切换到非RRC连接态，则终端向网络设备发送连接释放请求，并在请求中注明需要将当前状态切换为RRC空闲态还是RRC非激活态。终端状态切换成功之后，在切换后的状态下(RRC空闲态或者RRC非激活态)接收该第一MBMS。
情况3
上述实施例中步骤203中终端确定第一MBMS对应的状态指示为RRC连接态时，且终端确定当前所处的状态为RRC连接态，则终端可直接在当前状态下接收该第一MBMS，不需要向网络设备发送连接建立请求。
情况4
上述实施例中步骤203中终端确定第一MBMS对应的状态指示为RRC连接态时，且终端确定当前所处的状态为非RRC连接态，则终端可执行步骤205-步骤210。
在具体的实施过程中，终端在接收可靠性要求高的MBMS服务时，可以进入RRC连接态接收，以及向网络设备发送对该MBMS接收情况的反馈消息，使得终端在接收失败时网络设备可以及时的调整传输方案，提升数据传输的可靠性。
基于同一发明构思，本申请实施例提供了一种多媒体广播组播业务MBMS的接收装置，该多媒体广播组播业务MBMS的接收装置能够实现前述的多媒体广播组播业务MBMS的接收方法对应的功能。该多媒体广播组播业务MBMS的接收装置可以是硬件结构、软件模块、或硬件结构加软件模块。该多媒体广播组播业务MBMS的接收装置可以由芯片系统实现，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。请参见图3所示，该多媒 体广播组播业务MBMS的接收装置包括处理模块301和通信模块302。其中：
处理模块301，用于确定要发起的第一MBMS；
所述处理模块301，还用于根据映射关系确定所述第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；
所述处理模块301，还用于在所述状态指示用于指示所述终端在RRC连接态接收所述第一MBMS时，判断当前是否处于非RRC连接态；
通信模块302，用于在所述终端当前处于非RRC连接态时，向网络设备发送RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示本次连接建立的原因为接收MBMS。
在一种可能的实施方式中，所述映射关系是所述终端接收的MBMS控制消息中携带的；或者，所述映射关系是预先配置的。
在一种可能的实施方式中，所述映射关系包括：MBMS对应的属性信息、状态指示、反馈指示之间的映射关系。
在一种可能的实施方式中，所述通信模块302还用于：
接收所述网络设备发送的用于指示所述终端连接到所述网络设备的配置消息；
所述处理模块301还用于：基于所述配置消息，连接到所述网络设备，进入RRC连接态；
所述通信模块302还用于：接收所述网络设备发送的所述第一MBMS。
在一种可能的实施方式中，所述通信模块302在接收所述第一MBMS之后，所述通信模块302还用于：
发送用于指示所述终端是否成功接收到所述第一MBMS的反馈信息。
在一种可能的实施方式中，所述通信模块302还用于：
在所述处理模块301确定接收所述第一MBMS失败时，接收所述网络设备重传的MBMS；所述重传的MBMS包括所述网络设备基于所述第一MBMS的相关信息进行调整后得到的MBMS。
在一种可能的实施方式中，所述处理模块301还用于：
根据所述映射关系判断是否需要所述终端反馈所述第一MBMS的接收情况；
在所述通信模块302接收所述第一MBMS之后，所述通信模块302还用于：
在所述处理模块301确定需要所述终端反馈所述第一MBMS的接收情况时，向所述网络设备反馈所述第一MBMS的接收情况。
在一种可能的实施方式中，非RRC连接态包括：RRC空闲态和/或RRC非激活态。
前述的多媒体广播组播业务MBMS的接收方法的实施例涉及的各步骤的所有相关内容均可援引到本申请施例中的多媒体广播组播业务MBMS的接收装置所对应的功能模块的功能描述，在此不再赘述。
基于同一发明构思，本申请实施例提供了一种多媒体广播组播业务MBMS的发送装置，该多媒体广播组播业务MBMS的发送装置能够实现前述的多媒体广播组播业务MBMS的发送方法对应的功能。该多媒体广播组播业务MBMS的发送装置可以是硬件结构、软件模块、或硬件结构加软件模块。该多媒体广播组播业务MBMS的发送装置可以由芯片系统实现，芯片系统可以由芯片构成，也可以包含芯片和其他分立器件。请参见图4所示，该多媒体广播组播业务MBMS的发送装置包括通信模块401和处理模块402。其中：
通信模块401，用于向终端发送映射关系，所述映射关系中包括第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；
所述通信模块401，还用于接收所述终端发送的RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示所述终端本次连接建立的原因为接收MBMS。
在一种可能的实施方式中，所述映射关系携带于所述网络设备发送的MBMS控制消息中。
在一种可能的实施方式中，所述映射关系包括：MBMS对应的属性信息、状态指示、反馈指示之间的映射关系。
在一种可能的实施方式中，所述通信模块401还用于：
向所述终端发送用于指示所述终端连接到所述网络设备的配置消息，以使所述终端基于所述配置消息，连接到所述网络设备，进入RRC连接态；
向所述终端发送所述第一MBMS。
在一种可能的实施方式中，在所述通信模块401向所述终端发送所述第一MBMS之后，所述通信模块401还用于：
接收所述终端发送的用于指示所述终端是否成功接收到所述第一MBMS的反馈信息。
在一种可能的实施方式中，所述装置还包括：
处理模块402，用于在确定所述终端接收所述第一MBMS失败时，控制所述通信模块向所述终端重传MBMS，所述重传的MBMS包括所述处理模块基于所述MBMS的相关信息进行调整后得到的MBMS。
在一种可能的实施方式中，所述映射关系中还包括反馈指示，所述反馈指示用于指示是否需要所述终端反馈所述第一MBMS的接收情况。
在一种可能的实施方式中，非RRC连接态包括：RRC空闲态和/或RRC非激活态。
前述的多媒体广播组播业务MBMS的发送方法的实施例涉及的各步骤的所有相关内容均可援引到本申请施例中的多媒体广播组播业务MBMS的发送装置所对应的功能模块的功能描述，在此不再赘述。
本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，另外，在本申请各个实施例中的各功能模块可以集成在一个处理器中，也可以是单独物理存在，也可以两个或两个以上模块集成在一个模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。
基于同一发明构思，本申请实施例提供一种电子设备。请参见图5所示， 该电子设备包括至少一个处理器501，以及与至少一个处理器连接的存储器502，本申请实施例中不限定处理器501与存储器502之间的具体连接介质，图5中是以处理器501和存储器502之间通过总线500连接为例，总线500在图5中以粗线表示，其它部件之间的连接方式，仅是进行示意性说明，并不引以为限。总线500可以分为地址总线、数据总线、控制总线等，为便于表示，图5中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在本申请实施例中，存储器502存储有可被至少一个处理器501执行的指令，至少一个处理器501通过执行存储器502存储的指令，可以执行前述的多媒体广播组播业务MBMS的接收或发送方法中所包括的步骤。
其中，处理器501是电子设备的控制中心，可以利用各种接口和线路连接整个电子设备的各个部分，通过运行或执行存储在存储器502内的指令以及调用存储在存储器502内的数据，电子设备的各种功能和处理数据，从而对电子设备进行整体监控。可选的，处理器501可包括一个或多个处理单元，处理器501可集成应用处理器和调制解调处理器，其中，应用处理器主要处理操作系统和应用程序等，调制解调处理器主要处理无线通信。可以理解的是，上述调制解调处理器也可以不集成到处理器501中。在一些实施例中，处理器501和存储器502可以在同一芯片上实现，在一些实施例中，它们也可以在独立的芯片上分别实现。
处理器501可以是通用处理器，例如中央处理器(CPU)、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的多媒体广播组播业务MBMS的接收或发送方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。
存储器502作为一种非易失性计算机可读存储介质，可用于存储非易失 性软件程序、非易失性计算机可执行程序以及模块。存储器502可以包括至少一种类型的存储介质，例如可以包括闪存、硬盘、多媒体卡、卡型存储器、随机访问存储器(Random Access Memory，RAM)、静态随机访问存储器(Static Random Access Memory，SRAM)、可编程只读存储器(Programmable Read Only Memory，PROM)、只读存储器(Read Only Memory，ROM)、带电可擦除可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、磁性存储器、磁盘、光盘等等。存储器502是能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。本申请实施例中的存储器502还可以是电路或者其它任意能够实现存储功能的装置，用于存储程序指令和/或数据。
通过对处理器501进行设计编程，可以将前述实施例中介绍的多媒体广播组播业务MBMS的接收或发送方法所对应的代码固化到芯片内，从而使芯片在运行时能够执行前述的多媒体广播组播业务MBMS的接收或发送方法的步骤，如何对处理器501进行设计编程为本领域技术人员所公知的技术，这里不再赘述。
基于同一发明构思，本申请实施例还提供一种计算可读存储介质，该计算可读存储介质存储有计算机指令，当该计算机指令在计算机上运行时，使得计算机执行如前述的多媒体广播组播业务MBMS的接收或发送方法的步骤。
在一些可能的实施方式中，本申请提供的多媒体广播组播业务MBMS的接收或发送方法的各个方面还可以实现为一种程序产品的形式，其包括程序代码，当程序产品在电子设备上运行时，程序代码用于使该检测设备执行本说明书上述描述的根据本申请各种示例性实施方式的多媒体广播组播业务MBMS的接收或发送方法中的步骤。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘 存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (34)

  1. 一种多媒体广播组播业务MBMS的接收方法，其特征在于，应用于终端，所述方法包括：
    确定要发起的第一MBMS；
    根据映射关系确定所述第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；
    若所述状态指示用于指示所述终端在RRC连接态接收所述第一MBMS，所述终端判断当前是否处于非RRC连接态；
    若所述终端当前处于非RRC连接态，则向网络设备发送RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示本次连接建立的原因为接收MBMS。
  2. 如权利要求1所述的方法，其特征在于，所述映射关系是所述终端接收的MBMS控制消息中携带的；或者，所述映射关系是预先配置的。
  3. 如权利要求1所述的方法，其特征在于，所述映射关系包括：MBMS对应的属性信息、状态指示、反馈指示之间的映射关系。
  4. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    接收所述网络设备发送的用于指示所述终端连接到所述网络设备的配置消息；
    基于所述配置消息，连接到所述网络设备，进入RRC连接态；
    接收所述网络设备发送的所述第一MBMS。
  5. 如权利要求4所述的方法，其特征在于，在所述接收所述第一MBMS之后，还包括：
    发送用于指示所述终端是否成功接收到所述第一MBMS的反馈信息。
  6. 如权利要求1所述的方法，其特征在于，所述方法还包括：
    确定接收所述第一MBMS失败时，接收所述网络设备重传的MBMS；所述重传的MBMS包括所述网络设备基于所述第一MBMS的相关信息进行调 整后得到的MBMS。
  7. 如权利要求4所述的方法，其特征在于，所述方法还包括：
    根据所述映射关系判断是否需要所述终端反馈所述第一MBMS的接收情况；
    在所述接收所述第一MBMS之后，还包括：
    确定需要所述终端反馈所述第一MBMS的接收情况时，向所述网络设备反馈所述第一MBMS的接收情况。
  8. 如权利要求1所述的方法，其特征在于，非RRC连接态包括：RRC空闲态和/或RRC非激活态。
  9. 一种多媒体广播组播业务MBMS的发送方法，其特征在于，应用于网络设备，所述方法包括：
    向终端发送映射关系，所述映射关系中包括第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；
    接收所述终端发送的RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示所述终端本次连接建立的原因为接收MBMS。
  10. 如权利要求9所述的方法，其特征在于，所述映射关系携带于所述网络设备发送的MBMS控制消息中。
  11. 如权利要求9所述的方法，其特征在于，所述映射关系包括：MBMS对应的属性信息、状态指示、反馈指示之间的映射关系。
  12. 如权利要求9所述的方法，其特征在于，所述方法还包括：
    向所述终端发送用于指示所述终端连接到所述网络设备的配置消息，以使所述终端基于所述配置消息，连接到所述网络设备，进入RRC连接态；
    向所述终端发送所述第一MBMS。
  13. 如权利要求12所述的方法，其特征在于，在所述向所述终端发送所述第一MBMS之后，还包括：
    接收所述终端发送的用于指示所述终端是否成功接收到所述第一MBMS的反馈信息。
  14. 如权利要求9所述的方法，其特征在于，所述方法还包括：
    在确定所述终端接收所述第一MBMS失败时，向所述终端重传MBMS，所述重传的MBMS包括所述网络设备基于所述MBMS的相关信息进行调整后得到的MBMS。
  15. 如权利要求12所述的方法，其特征在于，所述映射关系中还包括反馈指示，所述反馈指示用于指示是否需要所述终端反馈所述第一MBMS的接收情况。
  16. 如权利要求9所述的方法，其特征在于，非RRC连接态包括：RRC空闲态和/或RRC非激活态。
  17. 一种多媒体广播组播业务MBMS的接收装置，其特征在于，所述装置包括：
    处理模块，用于确定要发起的第一MBMS；
    所述处理模块，还用于根据映射关系确定所述第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；
    所述处理模块，还用于在所述状态指示用于指示所述终端在RRC连接态接收所述第一MBMS时，判断当前是否处于非RRC连接态；
    通信模块，用于在所述终端当前处于非RRC连接态时，向网络设备发送RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示本次连接建立的原因为接收MBMS。
  18. 如权利要求17所述的装置，其特征在于，所述映射关系是所述终端接收的MBMS控制消息中携带的；或者，所述映射关系是预先配置的。
  19. 如权利要求17所述的装置，其特征在于，所述映射关系包括：MBMS对应的属性信息、状态指示、反馈指示之间的映射关系。
  20. 如权利要求17所述的装置，其特征在于，所述通信模块还用于：接 收所述网络设备发送的用于指示所述终端连接到所述网络设备的配置消息；
    所述处理模块还用于：基于所述配置消息，连接到所述网络设备，进入RRC连接态；
    所述通信模块还用于：接收所述网络设备发送的所述第一MBMS。
  21. 如权利要求20所述的装置，其特征在于，所述通信模块在接收所述第一MBMS之后，所述通信模块还用于：发送用于指示所述终端是否成功接收到所述第一MBMS的反馈信息。
  22. 如权利要求17所述的装置，其特征在于，所述通信模块还用于：
    在所述处理模块确定接收所述第一MBMS失败时，接收所述网络设备重传的MBMS；所述重传的MBMS包括所述网络设备基于所述第一MBMS的相关信息进行调整后得到的MBMS。
  23. 如权利要求20所述的装置，其特征在于，所述处理模块还用于：
    根据所述映射关系判断是否需要所述终端反馈所述第一MBMS的接收情况；
    在所述通信模块接收所述第一MBMS之后，所述通信模块还用于：
    在所述处理模块确定需要所述终端反馈所述第一MBMS的接收情况时，向所述网络设备反馈所述第一MBMS的接收情况。
  24. 如权利要求17所述的装置，其特征在于，非RRC连接态包括：RRC空闲态和/或RRC非激活态。
  25. 一种多媒体广播组播业务MBMS的发送装置，其特征在于，所述装置包括：
    通信模块，用于向终端发送映射关系，所述映射关系中包括第一MBMS对应的状态指示，所述状态指示用于指示所述终端在RRC连接态或非RRC连接态接收所述第一MBMS；
    所述通信模块，还用于接收所述终端发送的RRC连接建立请求，所述RRC连接建立请求中包含第一指示信息，所述第一指示信息用于指示所述终端本次连接建立的原因为接收MBMS。
  26. 如权利要求25所述的装置，其特征在于，所述映射关系携带于所述网络设备发送的MBMS控制消息中。
  27. 如权利要求25所述的装置，其特征在于，所述映射关系包括：MBMS对应的属性信息、状态指示、反馈指示之间的映射关系。
  28. 如权利要求25所述的装置，其特征在于，所述通信模块还用于：
    向所述终端发送用于指示所述终端连接到所述网络设备的配置消息，以使所述终端基于所述配置消息，连接到所述网络设备，进入RRC连接态；
    向所述终端发送所述第一MBMS。
  29. 如权利要求28所述的装置，其特征在于，在所述通信模块向所述终端发送所述第一MBMS之后，所述通信模块还用于：
    接收所述终端发送的用于指示所述终端是否成功接收到所述第一MBMS的反馈信息。
  30. 如权利要求25所述的装置，其特征在于，所述装置还包括：
    处理模块，用于在确定所述终端接收所述第一MBMS失败时，控制所述通信模块向所述终端重传MBMS，所述重传的MBMS包括所述处理模块基于所述MBMS的相关信息进行调整后得到的MBMS。
  31. 如权利要求28所述的装置，其特征在于，所述映射关系中还包括反馈指示，所述反馈指示用于指示是否需要所述终端反馈所述第一MBMS的接收情况。
  32. 如权利要求25所述的装置，其特征在于，非RRC连接态包括：RRC空闲态和/或RRC非激活态。
  33. 一种电子设备，其特征在于，包括：
    存储器，用于存储程序指令；
    处理器，用于调用所述存储器中存储的程序指令，按照获得的程序指令执行权利要求1-8或9-16任一项所述的方法包括的步骤。
  34. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机程序，所述计算机程序包括程序指令，所述程序指令当被计算 机执行时，使所述计算机执行如权利要求1-8或9-16任一项所述的方法。
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