WO2022150982A1 - Mbs多控制信道配置的更新方法 - Google Patents

Mbs多控制信道配置的更新方法 Download PDF

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Publication number
WO2022150982A1
WO2022150982A1 PCT/CN2021/071320 CN2021071320W WO2022150982A1 WO 2022150982 A1 WO2022150982 A1 WO 2022150982A1 CN 2021071320 W CN2021071320 W CN 2021071320W WO 2022150982 A1 WO2022150982 A1 WO 2022150982A1
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Prior art keywords
mbs
control channel
service
mbs service
control channels
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English (en)
French (fr)
Inventor
张鑫
生嘉
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JRD Communication Shenzhen Ltd
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JRD Communication Shenzhen Ltd
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Priority to CN202180089094.2A priority Critical patent/CN116783906A/zh
Priority to PCT/CN2021/071320 priority patent/WO2022150982A1/zh
Publication of WO2022150982A1 publication Critical patent/WO2022150982A1/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

Definitions

  • the disclosed embodiments of the present invention relate to the field of communication technologies, and more particularly, to a method for updating MBS multi-control channel configuration, a user equipment, and a base station.
  • LTE Multimedia Broadcast Multicast Service can be divided into SC-PTM (Single Cell Point-To-Multipoint, single cell point-to-multipoint) and MBSFN (Multicast-Broadcast Single Frequency Network, Multicast/Multicast Single Frequency Network).
  • SC-PTM Single Cell Point-To-Multipoint, single cell point-to-multipoint
  • MBSFN Multicast-Broadcast Single Frequency Network, Multicast/Multicast Single Frequency Network
  • the transmission mode of MBMS configuration is: obtaining the subframe position of the MBMS control channel and the SC-RNTI (Single Cell-Radio Network Temporary Identity, single cell wireless network) of the MBMS control channel through SIB20 network temporary identifier), the UE obtains SC-MCCH (Single Cell Multicast Control Channel, single cell multicast control channel) information by monitoring the SC-RNTI at the subframe position of the MBMS control channel; the UE reads the SC-MCCH information and obtains The subframe position of the MBMS service channel and the G-RNTI (Group-Radio Network Temporary Identity, group wireless network temporary identifier) of the MBMS service information, the UE obtains the MBMS service by monitoring the G-RNTI at the subframe position of the MBMS service channel .
  • SC-RNTI Single Cell-Radio Network Temporary Identity, single cell wireless network
  • the UE After receiving the change notification, the UE uses the updated MCCH configuration in the next change cycle.
  • the UE needs to continuously monitor the change notification to obtain the updated MCCH configuration, even if part of the updated MCCH configuration is not required by the UE, which increases the cost of the UE monitoring the change notification and consumes more power. .
  • the present invention proposes an update method for MBS multiple control channel configuration to solve the above technical problems.
  • an update method is provided, the update method is performed on the UE side, and the update method includes: receiving a system information block of a broadcast control channel to obtain information of multiple MBS control channels; Select the required part of the MBS control channel in the control channel, the selected part of the MBS control channel is the MBS control channel corresponding to the MBS service required for scheduling, and monitor the selected part of the MBS control channel to obtain the change notification; after receiving the change notification, Receive the updated configuration information of the MBS control channel in the next change cycle of the MBS control channel; read the updated configuration information of the MBS control channel to receive the required MBS service.
  • an update method is provided, the update method is performed on a base station side, and the update method includes: sending a system information block via a broadcast control channel, where the system information block includes information of a plurality of MBS control channels ; Send the configuration information of multiple MBS control channels including the change notification through the MBS control channel; send the configuration information of multiple updated MBS control channels in the next change cycle of the MBS control channel; according to the configuration of multiple updated MBS control channels Information to send multiple MBS services.
  • a user equipment includes a processor and a communication circuit, the processor is connected to the communication circuit, and the processor is configured to execute the updating method of the first aspect.
  • a user equipment stores an instruction, and when the instruction is executed, the update method of the first aspect is implemented.
  • a base station includes a processor and a communication circuit, the processor is connected to the communication circuit, and the processor is configured to execute the update method of the second aspect.
  • a base station is provided, the base station stores an instruction, and when the instruction is executed, the update method of the second aspect is implemented.
  • the UE selectively monitors and schedules the MBS control channel change notification of the MBS service according to the required MBS service to receive the configuration information required by the UE, so as to avoid the UE repeatedly monitoring the change notification and receiving the change notification. Unnecessary configuration information, so that the UE reduces the resource cost of monitoring the change notification, and makes the UE more power-saving.
  • Fig. 1 is the schematic diagram of the repetition period and the change period of MCCH in MBMS business
  • FIG. 2 is a schematic flowchart of the method for updating the MBS multiple control channel configuration of the present application
  • FIG. 3 is a schematic flowchart of the method for updating the MSB control channel configuration based on the short message of the present application
  • FIG. 4 is a schematic structural diagram of a user equipment or a base station according to an embodiment of the transmission method of the present application
  • FIG. 5 is a schematic diagram of storage of a user equipment or a base station according to an embodiment of the transmission method of the present application
  • the UE needs to continuously monitor the BCCH (Broadcast Control Channel, Broadcast Control Channel) and the MCCH to obtain the change notification so as to receive the updated MCCH configuration in the next change cycle, even if the partially updated MCCH configuration is not the same required by the UE.
  • BCCH Broadcast Control Channel
  • MCCH Broadcast Control Channel
  • the UE only needs MBMS service 1, because the UE monitors SC-N-RNTI (Single Cell-New-Radio Net Temporary Identity (Single Cell-New-Radio Net Temporary Identity) in the first subframe of the repetition period of each MCCH, the new wireless network of a single cell is temporary ID), when the network side starts to transmit MBMS service 2 and sends a change notification, the UE will receive the updated MCCH configuration for scheduling MBMS service 2 in the next change cycle of the MCCH after listening to the change notification. In this case This increases the cost of UE monitoring the change notification and consumes more power.
  • SC-N-RNTI Single Cell-New-Radio Net Temporary Identity (Single Cell-New-Radio Net Temporary Identity) in the first subframe of the repetition period of each MCCH, the new wireless network of a single cell is temporary ID
  • SC-N-RNTI Single Cell-New-Radio Net Temporary Identity (Single Cell-New-Radio Net Temporary Identity) in the first subframe
  • FIG. 2 is a schematic flowchart of a method for updating MBS multi-control channel configuration according to the present application.
  • S110 Receive a system information block of a broadcast control channel to acquire information of multiple MBS control channels.
  • the UE receives a system information block sent by the base station via a broadcast control channel, and the system information block includes information of a plurality of MBS control channels.
  • the information of the multiple MBS control channels includes the resource locations of the multiple MBS control channels and the wireless network temporary identifiers used for the MBS control channels.
  • the wireless network temporary identifier of the control channel is the CRC (Cyclic Redundancy Check, cyclic redundancy check) part used to scramble the MBS control channel information, which can be used as the identifier of different UEs in the signal information between the UE and the base station.
  • S120 Select the required part of the MBS control channel from the multiple MBS control channels, the selected part of the MBS control channel is the MBS control channel corresponding to the MBS service required for scheduling, and monitor the selected part of the MBS control channel to obtain the change notification therein.
  • Multiple MBS services are scheduled through multiple MBS control channels, and one MBS control channel needs to schedule a group of MBS services (that is, a group of MBS services includes at least one MBS service). Select and monitor the MBS control channel that schedules the group of MBS services from among the multiple control channels to receive the change notification.
  • the base station sends the modification notification in the first subframe of each repetition period of the MBS control channel
  • the UE monitors and receives the modification notification in the first subframe of each repetition period of the MBS control channel.
  • the UE After receiving the change notification, the UE can know that the configuration of the MBS control channel will be updated, but the UE still uses the original MBS configuration to receive the MBS service in the current change cycle of the MBS control channel, and in the next change cycle , the UE receives the updated configuration information of the MBS control channel.
  • the repetition period and the change period of the MBS control channel can be set according to the MBS service type.
  • the MBS service scheduled by the MBS control channel 1 is V2X (vehicle to everything, vehicle-to-external information exchange) that changes frequently. service, the repetition period and the change period of the MBS control channel 1 can be set relatively short, so that the UE can receive the change notification in the faster repetition period and receive the updated configuration in the faster change period to receive V2X business.
  • the MBS service scheduled by the MBS control channel 2 is an ordinary broadcast service that changes slowly, so the repetition period and the change period of the MBS control channel 1 can be set to be relatively longer.
  • S140 Read the updated configuration information of the MBS control channel to receive the required MBS service.
  • the updated configuration information of the MBS control channel may include the updated resource location of the MBS service control channel of the MBS service required by the UE, the wireless network temporary identifier used for the update of the MBS service control channel, and related information of the required MBS service.
  • the RNTI identifier can be used for the temporary identification of the wireless network
  • the relevant information of the required MBS service can be represented by TMGI (Temporary Mobile Group Identity, temporary mobile group identity).
  • the temporary identification of the wireless network is updated from the original RNTI1 to RNTI2.
  • the relevant information of TMGI1 is updated from the original TMGI1 to TMGI2. According to the received updated configuration information, the UE can receive the required MBS service.
  • the method for updating the MBS multi-control channel configuration of the present application enables the UE to selectively monitor and schedule the MBS control channel change notification of the MBS service according to the MBS service group to which the required MBS service belongs to receive the configuration information required by the UE. , which prevents the UE from repeatedly monitoring the change notification and receiving unnecessary configuration information, thereby reducing the resource cost of monitoring the change notification and making the UE more power-saving.
  • multiple MBS control channels schedule multiple MBS services
  • the multiple MBS services can be divided into multiple MBS service groups according to MBS service types, and each MBS service group is scheduled by one MBS control channel.
  • MBS service types can be classified according to delay parameters. For example, MBS services that require less than a specific delay parameter are grouped into one MBS service group. For example, V2X services can be grouped into one group with strict delay requirements.
  • the scheduling information is carried on MBS control channel 1. middle.
  • the MBS services larger than the specific delay parameter are divided into another MBS service group.
  • MBS service 1 and MBS service 2 are both ordinary broadcasting services and can be divided into another MBS service group, in which MBS service 1 and MBS service 2 can be divided into another MBS service group.
  • MBS service types can also be classified according to reliability parameters. For example, MBS services less than a specific bit error rate requirement are divided into one MBS service group, and MBS services larger than a specific bit error rate requirement are divided into another MBS service group.
  • the classification criteria of MBS service types can also be 5QI (5G Quality identity), ARP, Reflective QoS Attribute (RQA), Guaranteed Stream Bit Rate (GFBR), Maximum Stream Bit Rate (MFBR), Indication Control and Maximum packet loss rate. According to the actual situation of the MBS service, any of the above-mentioned classification criteria can be adopted, which is not limited in this embodiment.
  • the change notification of selecting the repetition period of the MBS control channel corresponding to the MBS required for monitoring and scheduling from the multiple MBS control channels further includes:
  • the MBS control channel of the corresponding MBS service group is selected and scheduled according to the type of the required MBS service.
  • the MBS control channel for scheduling the corresponding MBS service group is selected according to the type of MBS service required by the UE.
  • the MBS service required by the UE is a V2X service.
  • the MBS service is classified according to the delay requirement.
  • the MBS service group 1 is the V2X service, and the configuration information including the TMGI of the MBS service group 1 is transmitted through the MBS control channel 1, and the MBS service group 2 is the ordinary service.
  • the video streaming service includes the configuration information such as TMGI of MBS service group 2 and is transmitted through MBS control channel 2.
  • the UE can identify that the required service is in the MBS service group 1 through the TMGI, so as to select and schedule the MBS control channel 1 of the MBS service group 1.
  • the UE uses the dedicated wireless network temporary identity to monitor the MBS control channel 1 to receive the change notification of the MBS service group 1 without monitoring the MBS control channel 2 .
  • the dedicated wireless network temporary identity may be N-RNTI (New-Radio Network Temporary Identity, new wireless network temporary identity), which identifies that the MBS control channel 1 carries a change notification.
  • reading the configuration information of the updated MBS control channel to receive the required MBS service further includes:
  • the base station sends the MBS service data to the UE by mapping the MBS service channel to the PDSCH (Physical Downlink Shared Channel, Physical Downlink Shared Channel).
  • the UE obtains the updated resource location of the MBS service channel by reading the updated configuration of the MBS control channel.
  • the information confirms whether this MBS service is the service you need.
  • the MBS service control channel is monitored using the wireless network temporary identity for the MBS service control channel to receive the desired MBS service.
  • the specific location of the MBS service update on the transmission channel can be known.
  • the UE confirms that the MBS service is the service it needs through TMGI, and the UE can use the MBS service channel at this location.
  • the updated wireless network temporary identifier is continuously monitored, and if the corresponding wireless network temporary identifier is monitored, the MBS service is decoded and received from the PDSCH.
  • multiple MBS control channels schedule multiple MBS services
  • the multiple MBS services are divided into multiple MBS service groups according to user requirements
  • multiple UEs with the same user requirements are divided into one MBS service group
  • each MBS service group is scheduled by one MBS control channel.
  • the UE is an in-vehicle device
  • the in-vehicle terminal can be divided into an MBS service group
  • the scheduling information is carried in the MBS control channel 1 .
  • the UE is a device with a high-definition screen, there will be a demand for high-definition broadcast programs.
  • This type of UE can be divided into another MBS service group, and the scheduling information is carried in the MBS control channel 2 .
  • the change notification of the repetition period of selecting the MBS control channel corresponding to the monitoring required MBS service from the multiple MBS control channels further includes:
  • the MBS control channel of the corresponding MBS service group is selected and scheduled according to the user requirements of the UE.
  • the MBS control channel of the corresponding MBS service group is selected and scheduled according to the user requirements of the UE.
  • the MBS service required by the UE is the V2X service.
  • the MBS service is classified according to user needs. All UEs in the same cell that receive the MBS service are divided into two groups.
  • the MBS service group 1 is the V2X service, including the TMGI of the MBS service group 1, etc.
  • the configuration information is transmitted through the MBS control channel 1
  • the MBS service group 2 is a common video streaming service
  • the configuration information including the TMGI of the MBS service group 2 is transmitted through the MBS control channel 2.
  • the UE can identify that the required service is in the MBS service group 1 through the TMGI, so as to select and schedule the MBS control channel 1 of the MBS service group 1.
  • the UE uses the dedicated wireless network temporary identity to monitor the MBS control channel 1 to receive the change notification of the MBS service group 1 without monitoring the MBS control channel 2 .
  • the dedicated wireless network temporary identifier may be an N-RNTI, which identifies that the MBS control channel 1 carries a change notification.
  • reading the updated configuration information of the MBS control channel to receive the required MBS service further includes:
  • the base station sends the MBS service data to the UE by mapping the MBS service channel to the PDSCH, and the UE obtains the updated resource location of the MBS service channel by reading the update configuration of the MBS control channel, and the wireless network temporary identifier used for the update of the MBS service channel.
  • all UEs belonging to the same MBS service group share a wireless network temporary identity for updating the MBS service channel, for example, the wireless network temporary identity may be G-RNTI.
  • the relevant information of the MBS service is to distinguish the type of the MBS service.
  • the relevant information can be TMGI, and the UE can confirm whether the MBS service is the service required by the UE through the relevant information.
  • the MBS service control channel is monitored using the wireless network temporary identity for the MBS service control channel to receive the desired MBS service.
  • the specific location of the MBS service update on the transmission channel can be known. All UEs in the same MBS service group confirm through TMGI that the MBS service is the service they need, then the same MBS service group All UEs at this location can use the same wireless network temporary identifier for the MBS service control channel to monitor, for example, use G-RNTI. If the corresponding wireless network temporary identifier is monitored, it will decode and receive the MBS service from the PDSCH.
  • G-RNTI1 For example, all in-vehicle terminal users of MBS service group 1 use G-RNTI1 to monitor the updated resource location read on MBS control channel 1 to receive V2X services, while all high-definition screen device users of MBS service group 2 are on MBS control channel 2.
  • G-RNTI2 monitoring on the read updated resource location to receive video streaming services.
  • the present application also provides a method for updating MBS control channel configuration based on a short message. Please refer to FIG. 3 , which is a schematic flowchart of a method for updating a short message-based MBS control channel configuration of the present application.
  • S210 According to the state of the UE, monitor the paging control channel or the physical downlink control channel scrambled by using the first wireless network temporary identifier to receive a short message, wherein the format of the short message uses downlink control information format 1_0, and the downlink control information format When the short message indication of 1_0 is set to 00, it indicates that the MBS control channel configuration is updated.
  • the short message uses other downlink control information formats, wherein the short message indicates the update of the MBS control channel configuration by specifying the first field in the other downlink control format.
  • the state of the UE may be a connected state, an inactive state, or an idle state.
  • the base station sends a short message through the physical downlink control channel scrambled by using the temporary identifier of the first wireless network.
  • the identifier can be P-RNTI (Paging-Radio Network Temporary Identity, paging wireless network temporary identifier), and the UE receives the short message by monitoring the physical downlink control channel scrambled with the P-RNTI.
  • P-RNTI Paging-Radio Network Temporary Identity, paging wireless network temporary identifier
  • the base station When the UE is in an inactive state or an idle state, the base station sends a short message through the paging control channel scrambled by using the first wireless network temporary identifier, which can be P-RNTI, and the UE uses the The P-RNTI scrambled paging control channel receives short messages.
  • the first wireless network temporary identifier which can be P-RNTI
  • the short message uses the downlink control information format 1_0 (Downlink Control Information Format 1_0, DCI format1_0).
  • the DCI format 1_0 scrambled with P-RNTI can be used to carry the scheduling information of the paging message, and can also be used to send a short message, or carry both at the same time.
  • the specific field descriptions are shown in Table 1.
  • Short Messages Indicator field (Short Messages Indicator) of DCI format1_0 is 00, which is not defined and used, and can be defined as the update of the MBS control channel configuration.
  • the format of the short message may adopt other downlink control information formats.
  • the update of the MBS control channel configuration can be represented by the added bits in DCI format1_0, or other downlink control information formats can be redefined, and the first field is specified to represent the update of the MBS control channel, and the first field is other downlink control channels.
  • One or more bits at any position in the message format For example, 1 may be defined to indicate the update of the MBS control channel configuration, and 01 may be defined to indicate the update of the MBS control channel configuration.
  • S220 After receiving the short message, receive the updated configuration information of the MBS control channel in the next change cycle of the MBS control channel.
  • the UE After receiving the short message, the UE can know that the configuration of the MBS control channel will be updated, but the UE still uses the original MBS configuration to receive the MBS service in the current change cycle of the MBS control channel. The UE receives the updated configuration information of the MBS control channel.
  • the MBS control channel change period can be set according to the MBS service type. For example, if the MBS service scheduled by the MBS control channel 1 is a V2X service that changes frequently, the change period of the MBS control channel 1 can be set to a relatively short time. , so that the UE can receive the updated configuration in a faster change cycle to receive the V2X service. However, the MBS service scheduled by the MBS control channel 2 is an ordinary broadcast service that changes slowly, so the change period of the MBS control channel 1 can be set relatively longer.
  • the configuration information of the updated MBS control channel may include the updated resource location of the MBS service control channel of the MBS service required by the UE, the wireless network temporary identity used for the update of the MBS service control channel, and related information of the required MBS service.
  • the RNTI identifier can be used for the temporary identification of the wireless network
  • the relevant information of the required MBS service can be represented by TMGI
  • the wireless network temporary identification is updated from the original RNTI1 to RNTI2
  • the relevant information of the required MBS service is updated from the original TMGI1 to TMGI2.
  • the UE can receive the required MBS service.
  • a second field may be specified in the other downlink control information formats to represent part or all of the MBS services for updating.
  • the second field is one or more bits in any position in other downlink control information formats.
  • multiple MBS services can be divided into multiple MBS service groups according to user requirements, and multiple UEs with the same user requirements are divided into one MBS service group, each MBS service group is scheduled by an MBS control channel, and each MBS service group is scheduled by an MBS control channel.
  • Multiple UEs of the MBS service groups use the same second wireless network temporary identity to monitor the MBS service channel to receive the required MBS service. For example, when the UE is an in-vehicle device, there will be a demand for V2X services, the in-vehicle terminal can be divided into an MBS service group, and the scheduling information is carried in the MBS control channel 1 .
  • the second wireless network temporary identifier may be a G-RNTI, and all UEs belonging to the same MBS service group use the same G-RNTI to receive the same MBS service.
  • each MBS service group corresponds to one of the bits of the second field, and when the value of the bit is 1, the MBS control channel configuration of the MBS service group corresponding to the bit is updated.
  • the value of the bit is 0, it indicates that the MBS control channel configuration of the MBS service group corresponding to the bit has not been updated.
  • the protocol allows UEs to be divided into 4 MBS service groups at most, and all UEs in each MBS service group use the same G-RNTI to monitor the service, and the G-RNTI is associated with the MBS service type.
  • the second field is 0001, it means that the configuration of MBS control channel 1 will be updated.
  • the second field is 0011
  • the configuration of MBS control channel 1 and the configuration of MBS control channel 2 will be updated. Knowing that it needs to receive the updated configuration of MBS control channel 1 in the next change cycle of MBS control channel 1, and UE2 of MBS service group 2 will also know that it needs to receive the updated configuration of MBS control channel 2 in the next change cycle of MBS control channel 2.
  • configuration The base station scrambles different MBS control channels by using different G-RNTIs, so that only UEs in the MBS service group scheduled through the MBS control channels corresponding to the G-RNTIs can receive this short message indicating the MBS control channel configuration update , while other MBS service groups cannot receive it.
  • multiple MBS services are divided into multiple MBS service groups according to service types, and each MBS service group is scheduled by one MBS control channel.
  • MBS service types can be classified according to delay parameters. For example, MBS services that require less than a specific delay parameter are grouped into one MBS service group. For example, V2X services can be grouped into one group with strict delay requirements.
  • the scheduling information is carried on MBS control channel 1. middle.
  • the MBS services larger than the specific delay parameter are divided into another MBS service group.
  • MBS service 1 and MBS service 2 are both ordinary broadcasting services and can be divided into another MBS service group, in which MBS service 1 and MBS service 2 can be divided into another MBS service group.
  • MBS service types can also be classified according to reliability parameters. For example, MBS services less than a specific bit error rate requirement are divided into one MBS service group, and MBS services larger than a specific bit error rate requirement are divided into another MBS service group.
  • the classification criteria of MBS service types can also be 5QI (5G Quality identity), ARP, Reflective QoS Attribute (RQA), Guaranteed Stream Bit Rate (GFBR), Maximum Stream Bit Rate (MFBR), Indication Control and Maximum packet loss rate. According to the actual situation of the MBS service, any of the above-mentioned classification criteria can be adopted, which is not limited in this embodiment.
  • each MBS service group corresponds to one of the bits of the second field, and when the value of the bit is 1, it indicates that the MBS control channel configuration of the MBS service group corresponding to the bit is updated. When the value of the bit is 0, it indicates that the MBS control channel configuration of the MBS service group corresponding to the bit has not been updated.
  • the protocol allows multiple MBS services to be divided into 4 MBS service groups at most.
  • the second field is 0001, it means that the configuration of MBS control channel 1 will be updated.
  • the second field is 0011, it means that the configuration of MBS control channel 1 and MBS The configuration of control channel 2 will be updated.
  • the UE When the UE is interested in the MBS service scheduled by the MBS control channel 1, it will receive the updated configuration of the MBS control channel 1 in the next change cycle of the MBS control channel 1. If the UE is not interested in the MBS service scheduled by the MBS control channel 1 When interested, no configuration will be made to receive the update.
  • reading the updated configuration information of the MBS control channel to receive the MBS service further includes:
  • the base station sends the MBS service data to the UE by mapping the MBS service channel to the PDSCH, and the UE obtains the updated resource location of the MBS service channel by reading the update configuration of the MBS control channel, and the wireless network temporary identifier used for the update of the MBS service channel. and other updated relevant information of the required MBS service, wherein the relevant information of the MBS service is to distinguish the type of the MBS service, for example, the relevant information can be TMGI, and the UE can confirm whether the MBS service is required by itself through the relevant information business.
  • the MBS service control channel is monitored using the wireless network temporary identity for the MBS service control channel to receive the desired MBS service.
  • the specific location of the MBS service update on the transmission channel can be known.
  • the UE confirms that the MBS service is the service it needs through TMGI, and the UE can use the MBS service channel at this location.
  • the updated wireless network temporary identifier is continuously monitored, and if the corresponding wireless network temporary identifier is monitored, the MBS service is decoded and received from the PDSCH.
  • FIG. 4 is a schematic structural diagram of an implementation manner of a user equipment or a base station of the present application.
  • the user equipment or base station 10 includes a processor 12 and a communication circuit 11; the processor 12 is connected to the communication circuit 11, and the processor 12 is configured to execute an instruction to implement the above-mentioned method for updating the MBS multi-control channel configuration or the above-mentioned short message-based MBS control channel The update method of the configuration.
  • the processor 12 may also be referred to as a CPU (Central Processing Unit, central processing unit).
  • the processor 12 may be an integrated circuit chip with signal processing capability.
  • Processor 12 may also be a general purpose processor, digital signal processor (DSP), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components .
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general purpose processor may be a microprocessor or the processor 12 may be any conventional processor or the like.
  • FIG. 5 is a schematic diagram of a storage medium of a user equipment or a base station in an embodiment of the present application.
  • the user equipment or base station 20 in this embodiment of the present application stores instruction/program data 21, and when the instruction/program data 21 is executed, implements any of the embodiments of the update method of the present application and any non-conflicting method provided by the combination.
  • the instruction/program data 21 can be stored in the above-mentioned user equipment or the storage medium of the base station 20 in the form of a program file in the form of a software product, so that a computer device (which can be a personal computer, a server, or a network device, etc.) or A processor (processor) executes all or part of the steps of the methods of various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, mobile hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes , or terminal devices such as computers, servers, mobile phones, and tablets.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of units is only a logical function division.
  • there may be other division methods for example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the above-mentioned integrated units may be implemented in the form of hardware, or may be implemented in the form of software functional units.

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Abstract

本申请提供一种MBS多控制信道配置的更新方法，该更新方法包括：接收广播控制信道的系统信息块以获取多个MBS控制信道的信息；从多个MBS控制信道中选择监听调度所需MBS业务的MBS控制信道的更改通知；接收到更改通知后，在MBS控制信道的下一个变更周期接收更新的MBS控制信道的配置信息；读取更新的MBS控制信道的配置信息以接收所需MBS业务。通过UE根据所需MBS业务，从而选择性的监听调度该MBS业务的MBS控制信道的更改通知以接收UE所需要的配置信息，避免了UE不断重复监听更改通知及接收不必要的配置信息，从而使得UE降低了监听更改通知的资源成本，且使得UE更省电。

Description

MBS多控制信道配置的更新方法 【技术领域】
本发明的所公开实施例涉及通信技术领域，且更具体而言，涉及一种MBS多控制信道配置的更新方法、用户设备及基站。
【背景技术】
LTE的多媒体广播多播业务(Multimedia Broadcast Multicast Service,MBMS)的传输方式可分为SC-PTM(Single Cell Point-To-Multipoint，单小区点到多点)和MBSFN(Multicast-Broadcast Single Frequency Network,多播/组播单频网络)。其中，在SC-PTM的传输方式中，MBMS的配置的传输方式为：通过SIB20获取MBMS控制信道的子帧位置和该MBMS控制信道的SC-RNTI(Single Cell-Radio Network Temporary Identity,单小区无线网络临时标识符)，UE在MBMS控制信道的子帧位置通过监听SC-RNTI获取SC-MCCH(Single Cell Multicast Control Channel,单小区多播控制信道)信息；UE读取该SC-MCCH信息，获取MBMS业务信道的子帧位置和该MBMS业务信息的G-RNTI(Group-Radio Network Temporary Identity,群组无线网络临时标识符)，UE在MBMS业务信道的子帧位置通过监听G-RNTI获取MBMS业务。
若有新的MBMS业务需要开始传输，则MBMS的配置也将发生改变，在SC-PTM中，如图1所示，MCCH的配置更新方法如下：
(1)监听MCCH每个重复周期的第一个子帧发送的更改通知；
(2)UE在收到更改通知后，在下一个变更周期内使用更新后的MCCH配置。
但在此种配置更新方案中，UE需要不断地监听更改通知以获取更新的MCCH配置，即使部分更新的MCCH配置不是该UE所需要的，从而使得UE监听更改通知的成本增加，且更加耗电。
【发明内容】
根据本发明的实施例，本发明提出MBS多控制信道配置的更新方法来解决上述技术问题。
根据本申请的一方面，提供了一种更新方法，该更新方法在UE侧被执行， 该更新方法包括：接收广播控制信道的系统信息块以获取多个MBS控制信道的信息；从多个MBS控制信道中选择所需要的部分MBS控制信道，选择的部分MBS控制信道是调度所需MBS业务对应的MBS控制信道，监听选择的部分MBS控制信道以获取其中的更改通知；接收到更改通知后，在MBS控制信道的下一个变更周期接收更新的MBS控制信道的配置信息；读取更新的MBS控制信道的配置信息以接收所需MBS业务。
根据本申请的第二方面，提供了一种更新方法，该更新方法在基站侧被执行，该更新方法包括：经广播控制信道发送系统信息块，该系统信息块包括多个MBS控制信道的信息；经MBS控制信道发送包括更改通知的多个MBS控制信道的配置信息；在MBS控制信道的下一个变更周期发送多个更新的MBS控制信道的配置信息；根据多个更新的MBS控制信道的配置信息发送多个MBS业务。
根据本申请的第三方面，提供了一种用户设备，该用户设备包括处理器和通信电路，处理器连接通信电路，处理器用于执行第一方面的更新方法。
根据本申请的第四方面，提供了一种用户设备，该用户设备存储有指令，该指令被执行时实现第一方面的更新方法。
根据本申请的第五方面，提供了一种基站，该基站包括处理器和通信电路，处理器连接通信电路，处理器用于执行第二方面的更新方法。
根据本申请的第六方面，提供了一种基站，该基站存储有指令，该指令被执行时实现第二方面的更新方法。
本申请的有益效果是：通过UE根据所需MBS业务，从而选择性的监听调度该MBS业务的MBS控制信道的更改通知以接收UE所需要的配置信息，避免了UE不断重复监听更改通知以及接收不必要的配置信息，从而使得UE降低了监听更改通知的资源成本，且使得UE更省电。
【附图说明】
为了更清楚地说明本申请实施例中的技术方案，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，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。其中：
图1是MBMS业务中MCCH的重复周期和更改周期的示意图；
图2是本申请MBS多控制信道配置的更新方法的流程示意图；
图3是本申请基于短消息的MSB控制信道配置的更新方法的流程示意图；
图4是本本申请传输方法实施例的用户设备或基站的结构示意图；
图5是本本申请传输方法实施例的用户设备或基站的存储示意图；
【具体实施方式】
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，所描述的实施例仅是本申请一部分实施例，而不是全部实施例。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的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。
在传统的MBMS配置更新方案中，UE需要不断地监听BCCH(Broadcast Control Channel，广播控制信道)和MCCH以获取更改通知便于在下一个变更周期内接收更新的MCCH配置，即使部分更新的MCCH配置不是该UE所需要的。例如，UE只对MBMS业务1有需求，由于UE在每个MCCH的重复周期的第一个子帧监听SC-N-RNTI(Single Cell-New-Radio Net Temporary Identity，单小区新的无线网络临时标识)，当网络侧开始传输MBMS业务2而发送更改通知，该UE在监听到该更改通知后，将在MCCH的下一个变更周期内接收调度MBMS业务2的更新的MCCH配置，在这种情况下使得UE监听更改通知的成本增加，且更加耗电。
本申请提出了一种MBS业务中多控制信道配置的更新方法。请参阅图2，图2为本申请MBS多控制信道配置的更新方法的流程示意图。
S110:接收广播控制信道的系统信息块以获取多个MBS控制信道的信息。
UE接收由基站经广播控制信道进行发送的系统信息块，该系统信息模块包括多个MBS控制信道的信息。该多个MBS控制信道的信息包括多个MBS控制信道的资源位置以及用于MBS控制信道的无线网络临时标识，MBS控制信道的资源位置具体可为物理信道上子帧的位置，而用于MBS控制信道的无线网络临时标识是用于加扰MBS控制信道信息的CRC(Cyclic Redundancy Check,循环冗余校验)部分，可作为UE和基站之间的信号信息内部的不同UE的标识。
S120:从多个MBS控制信道中选择所需要的部分MBS控制信道，选择的部分MBS控制信道是调度所需MBS业务对应的MBS控制信道，监听选择的部分MBS控制信道以获取其中的更改通知。
通过多个MBS控制信道调度多个MBS业务，一个MBS控制信道需调度一组MBS业务(即一组MBS业务包含至少一个MBS业务)，UE可根据自己所需求的业务所属的MBS业务组，从多个控制信道中选择监听调度该组MBS业务的MBS控制信道以接收更改通知。
在一实施例中，基站在MBS控制信道的每个重复周期的第一个子帧发送更改通知，而UE在MBS控制信道的每个重复周期的第一个子帧监听接收该更改通知。
S130:接收到更改通知后，在MBS控制信道的下一个变更周期接收更新的MBS控制信道的配置信息。
UE在接收到更改通知后，可获知MBS控制信道的配置将进行更新，但UE在MBS控制信道的当前的变更周期内，仍然使用原有的MBS配置进行MBS业务的接收，在下一个变更周期内，UE接收更新的MBS控制信道的配置信息。
在一实施例中，MBS控制信道的重复周期和变更周期可以根据MBS业务类型进行设置，例如，MBS控制信道1调度的MBS业务为变化频繁的V2X(vehicle to everything，车对外界的信息交换)业务，就可以把MBS控制信道1的重复周期和变更周期相对设置短一点，从而使得UE能在更快的重复周期内接收到更改通知以及在更快的变更周期内接收到更新的配置以接收V2X业务。而MBS控制信道2调度的MBS业务为变化缓慢的普通广播业务，就可以把MBS控制信道1的重复周期和变更周期相对设置长一点。
S140:读取更新的MBS控制信道的配置信息以接收所需MBS业务。
更新的MBS控制信道的配置信息可能包括UE所需MBS业务的MBS业务控制信道的更新的资源位置、用于MBS业务控制信道的更新的无线网络临时标识及所需MBS业务的相关信息。例如，无线网络临时标识可用RNTI标识，所需MBS业务的相关信息可用TMGI(Temporary Mobile Group Identity，临时移动群组标识)表示，无线网络临时标识从原有的RNTI1更新为RNTI2，所需MBS业务的相关信息从原有的TMGI1更新为TMGI2。根据接收到的更新的配置信息，UE可接收所需MBS业务。
本申请的MBS多控制信道配置的更新方法，通过UE根据所需MBS业务所属的MBS业务组，从而选择性的监听调度该组MBS业务的MBS控制信道的更改通知以接收UE所需要的配置信息，避免了UE不断重复监听更改通知及接收不必要的配置信息，从而使得UE降低了监听更改通知的资源成本，且使得 UE更省电。
在一实施例中，多个MBS控制信道调度多个MBS业务，可将多个MBS业务按照MBS业务类型分成多个MBS业务组，每个MBS业务组由一个MBS控制信道进行调度。MBS业务类型分类可按照时延参数分类，例如要求小于特定时延参数的MBS业务分为一个MBS业务组，比如V2X业务对时延要求严格可分为一组，调度信息承载在MBS控制信道1中。而大于该特定时延参数的MBS业务分为另一个MBS业务组，比如MBS业务1和MBS业务2都为普通的广播业务可分为另一个MBS业务组，其中MBS业务1和MBS业务2可分别用TMGI1和TMGI2进行标识，其调度信息承载在MBS控制信道2中。MBS业务类型分类也可按照可靠性参数分类，例如小于特定误码率要求的MBS业务分为一个MBS业务组，而大于特定误码率要求的MBS业务分为另一个MBS业务组。当然，MBS业务类型的分类标准还可以为5QI(5G Quality identity)、ARP，反射Qos属性(Reflective QoS Attribute,RQA)、保证流比特率(GFBR)、最大流比特率(MFBR)、指示控制和最大丢包率。可根据MBS业务的实际情况，采用上述的任意分类标准，在本实施例里不做限制。
在本实施例中，从多个MBS控制信道中选择监听调度所需MBS对应的MBS控制信道的重复周期的更改通知进一步包括：
根据所需MBS业务的类型选择调度对应的MBS业务组的MBS控制信道。
根据UE所需的MBS业务的类型选择调度对应的MBS业务组的MBS控制信道。例如UE所需的MBS业务为V2X业务，MBS业务根据时延要求分类，MBS业务组1为V2X业务，包含MBS业务组1的TMGI等配置信息通过MBS控制信道1传输，MBS业务组2为普通的视频流业务，包含MBS业务组2的TMGI等配置信息通过MBS控制信道2传输。此时UE可通过TMGI识别所需的业务在MBS业务组1中，从而选择调度该MBS业务组1的MBS控制信道1。
使用专用的无线网络临时标识监听MBS业务组对应的MBS控制信道的更改通知。
UE使用专用的无线网络临时标识监听MBS控制信道1以接收该MBS业务组1的更改通知，而无需监听MBS控制信道2。其中，专用的无线网络临时标识可以为N-RNTI(New-Radio Network Temporary Identity,新的无线网络临时标识)，其标识该MBS控制信道1携带更改通知。
在本实施例中，读取更新的MBS控制信道的配置信息以接收所需MBS业 务进一步包括：
读取更新的MBS控制信道的配置信息，以获取所需MBS业务的MBS业务控制信道的资源位置、用于MBS业务控制信道的无线网络临时标识及所需MBS业务的相关信息。
基站把MBS业务数据通过在MBS业务信道映射到PDSCH(Physical Downlink Shared Channel，物理下行共享信道)上发送给UE，UE通过读取MBS控制信道的更新配置，获取MBS业务信道更新的资源位置、用于MBS业务信道的更新的无线网络临时标识以及所需MBS业务的其他更新的相关信息，其中MBS业务的相关信息是对MBS业务类型的区分，例如该相关信息可为TMGI，UE可通过该相关信息确认此MBS业务是否是自己所需求的业务。
在资源位置，使用用于MBS业务控制信道的无线网络临时标识监听MBS业务控制信道以接收所需MBS业务。
根据MBS控制信道更新的配置信息可得知MBS业务在传输信道的更新的具体位置，UE通过TMGI确认此MBS业务是自己所需求的业务，则UE可在此位置，使用用于MBS业务信道的更新的无线网络临时标识进行持续监听，如果监听到对应的无线网络临时标识，就从PDSCH去解码接收该MBS业务。
在另一实施例中，多个MBS控制信道调度多个MBS业务，多个MBS业务按照用户需求分成多个MBS业务组，具有相同所述用户需求的多个UE分为一个MBS业务组，每个MBS业务组由一个MBS控制信道进行调度。例如，UE为车载设备时，将对V2X业务有需求，可将该车载终端分为一个MBS业务组，调度信息承载在MBS控制信道1中。当UE为带高清屏的设备时，将对高清广播节目有需求，可将该类UE分为另一个MBS业务组，调度信息承载在MBS控制信道2中。
在本实施例中，从多个MBS控制信道中选择监听所需MBS业务对应的MBS控制信道的重复周期的更改通知进一步包括：
根据UE的用户需求选择调度对应的MBS业务组的MBS控制信道。
根据UE的用户需求选择调度对应的MBS业务组的MBS控制信道。例如UE所需的MBS业务为V2X业务，MBS业务根据用户需求分类，把同一小区内的所有接收MBS业务的UE分为两组，MBS业务组1为V2X业务，包含MBS业务组1的TMGI等配置信息通过MBS控制信道1传输，MBS业务组2为普通的视频流业务，包含MBS业务组2的TMGI等配置信息通过MBS控制信 道2传输。此时UE可通过TMGI识别所需的业务在MBS业务组1中，从而选择调度该MBS业务组1的MBS控制信道1。
使用专用的无线网络临时标识监听MBS业务组对应的MBS控制信道的更改通知。
UE使用专用的无线网络临时标识监听MBS控制信道1以接收该MBS业务组1的更改通知，而无需监听MBS控制信道2。其中，专用的无线网络临时标识可为N-RNTI，其标识该MBS控制信道1携带更改通知。
在本实施例中，在本实施例中，读取更新的MBS控制信道的配置信息以接收所需MBS业务进一步包括：
读取更新的MBS控制信道的配置信息，以获取所需MBS业务的MBS业务控制信道的资源位置、用于MBS业务控制信道的无线网络临时标识及所需MBS业务的相关信息。
基站把MBS业务数据通过在MBS业务信道映射到PDSCH上发送给UE，UE通过读取MBS控制信道的更新配置，获取MBS业务信道更新的资源位置、用于MBS业务信道的更新的无线网络临时标识以及所需MBS业务的其他更新的相关信息，属于同一个MBS业务组的所有UE共享一个用于MBS业务信道的更新的无线网络临时标识，例如该无线网络临时标识可为G-RNTI。MBS业务的相关信息是对MBS业务类型的区分，例如该相关信息可为TMGI，UE可通过该相关信息确认此MBS业务是否是自己所需求的业务。
在资源位置，使用用于MBS业务控制信道的无线网络临时标识监听MBS业务控制信道以接收所需MBS业务。
根据MBS控制信道更新的配置信息可得知MBS业务在传输信道的更新的具体位置，同一个MBS业务组的所有UE通过TMGI确认此MBS业务是自己所需求的业务，则该同一个MBS业务组的所有UE可在此位置，使用同一个用于MBS业务控制信道的无线网络临时标识监听，例如使用G-RNTI，如果监听到对应的无线网络临时标识，就从PDSCH去解码接收该MBS业务。例如，MBS业务组1的所有车载终端用户在MBS控制信道1读取的更新的资源位置上使用G-RNTI1监听以接收V2X业务，而MBS业务组2的所有高清屏设备用户在MBS控制信道2读取的更新的资源位置上使用G-RNTI2监听以接收视频流业务。
本申请还提供一种基于短消息的MBS控制信道配置的更新方法。请参阅图3，图3为本申请基于短消息的MBS控制信道配置的更新方法的流程示意图。
S210：根据UE的状态，监听使用第一无线网络临时标识加扰的寻呼控制信道或物理下行控制信道以接收短消息，其中短消息的格式使用下行控制信息格式1_0，所述下行控制信息格式1_0的短消息指示设置为00时表示MBS控制信道配置的更新。
或短消息使用其他下行控制信息格式，其中短消息通过在其他下行控制格式中指定第一字段来表示MBS控制信道配置的更新。
其中，UE的状态可为连接态、非激活态或空闲态，当UE为连接态时，基站通过使用第一无线网络临时标识加扰的物理下行控制信道发送短消息，该第一无线网络临时标识可为P-RNTI(Paging-Radio Network Temporary Identity,寻呼无线网络临时标识符)，而UE则通过监听使用P-RNTI加扰的物理下行控制信道接收短消息。当UE为非激活态或空闲态时，基站通过使用第一无线网络临时标识加扰的寻呼控制信道发送短消息，该第一无线网络临时标识可为P-RNTI，而UE则通过监听使用P-RNTI加扰的寻呼控制信道接收短消息。
短消息使用下行控制信息格式1_0(Downlink Control Information Format 1_0,DCI format1_0)。使用P-RNTI加扰的DCI format1_0的可以用于携带寻呼消息的调度信息，还可以用于发送短消息，或者同时携带二者，具体字段说明如表1所示。
表1
Figure PCTCN2021071320-appb-000001
Figure PCTCN2021071320-appb-000002
从上表可得知，DCI format1_0的短消息指示字段(Short Messages Indicator)值为00是未被定义使用的，可以把它定义为MBS控制信道配置的更新。
在另一实施例中，短消息的格式可采用其他下行控制信息格式。可以在DCI format1_0通过增加的比特位来表示为MBS控制信道配置的更新，或者可以重新定义其他下行控制信息格式，指定其中的第一字段来表示MBS控制信道的更新，第一字段为其他下行控制信息格式中任意位置的一位或多位比特位。例如可以定义1表示MBS控制信道配置的更新，也可以定义01表示MBS控制信道配置的更新。
S220：接收到短消息后，在MBS控制信道的下一个变更周期接收更新的MBS控制信道的配置信息。
UE接收到短消息后，可获知MBS控制信道的配置将进行更新，但UE在MBS控制信道的当前的变更周期内，仍然使用原有的MBS配置进行MBS业务的接收，在下一个变更周期内，UE接收更新的MBS控制信道的配置信息。
在一实施例中，MBS控制信道变更周期可以根据MBS业务类型进行设置，例如，MBS控制信道1调度的MBS业务为变化频繁的V2X业务，就可以把MBS控制信道1的变更周期相对设置短一点，从而使得UE能在更快的变更周期内接收到更新的配置以接收V2X业务。而MBS控制信道2调度的MBS业务为变化缓慢的普通广播业务，就可以把MBS控制信道1的变更周期相对设置长一点。
S230：读取更新的MBS控制信道的配置信息以接收MBS业务。
更新的MBS控制信道的配置信息可能包括UE所需MBS业务的MBS业务控制信道的更新的资源位置、用于MBS业务控制信道的更新的无线网络临时标 识及所需MBS业务的相关信息。例如，无线网络临时标识可用RNTI标识，所需MBS业务的相关信息可用TMGI表示，无线网络临时标识从原有的RNTI1更新为RNTI2，所需MBS业务的相关信息从原有的TMGI1更新为TMGI2。根据接收到的更新的配置信息，UE可接收所需MBS业务。
在另一实施例中，短消息的格式采用其他下行控制信息格式时，还可以通过在其他下行控制信息格式中指定第二字段来表示多个MBS业务中的部分或全部MBS业务进行更新。第二字段为其他下行控制信息格式中任意位置的一位或多位比特位。
在一实施例中，多个MBS业务可按照用户需求分成多个MBS业务组，具有相同用户需求的多个UE分为一个MBS业务组，每个MBS业务组由一个MBS控制信道进行调度，每个MBS业务组的多个UE使用相同的第二无线网络临时标识监听MBS业务信道以接收需求的MBS业务。例如，UE为车载设备时，将对V2X业务有需求，可将该车载终端分为一个MBS业务组，调度信息承载在MBS控制信道1中。当UE为带高清屏的设备时，将对高清广播节目有需求，可将该类UE分为另一个MBS业务组，调度信息承载在MBS控制信道2中。第二无线网络临时标识可为G-RNTI，同属一个MBS业务组的所有UE都使用同一个G-RNTI接收相同的MBS业务。
其中，每个MBS业务组对应第二字段的比特位的其中一位，比特位的数值为1时，比特位对应的MBS业务组的MBS控制信道配置进行更新。比特位的数值为0时，表示比特位对应的MBS业务组的MBS控制信道配置未进行更新。例如协议允许最多将UE分为4个MBS业务组，每个MBS业务组的所有UE采用相同的G-RNTI监听业务，此G-RNTI与MBS业务类型是进行关联对应的。当第二字段为0001表示MBS控制信道1的配置将进行更新，当第二字段为0011表示MBS控制信道1的配置和MBS控制信道2的配置将进行更新，对应的MBS业务组1的UE1将获知需要在下一个MBS控制信道1的变更周期内接收更新的MBS控制信道1的配置，而MBS业务组2的UE2也将获知需要在下一个MBS控制信道2的变更周期接收更新的MBS控制信道2的配置。基站通过使用不同的G-RNTI加扰不同的MBS控制信道，从而使得只有通过对应G-RNTI的MBS控制信道进行调度的MBS业务组的UE才能接收到此条指示MBS控制信道配置更新的短消息，而其他MBS业务组并不能收到。
在另一实施例中，多个MBS业务按照业务类型分成多个MBS业务组，每个MBS业务组由一个MBS控制信道进行调度。MBS业务类型分类可按照时延参数分类，例如要求小于特定时延参数的MBS业务分为一个MBS业务组，比如V2X业务对时延要求严格可分为一组，调度信息承载在MBS控制信道1中。而大于该特定时延参数的MBS业务分为另一个MBS业务组，比如MBS业务1和MBS业务2都为普通的广播业务可分为另一个MBS业务组，其中MBS业务1和MBS业务2可分别用TMGI1和TMGI2进行标识，其调度信息承载在MBS控制信道2中。MBS业务类型分类也可按照可靠性参数分类，例如小于特定误码率要求的MBS业务分为一个MBS业务组，而大于特定误码率要求的MBS业务分为另一个MBS业务组。当然，MBS业务类型的分类标准还可以为5QI(5G Quality identity)、ARP，反射Qos属性(Reflective QoS Attribute,RQA)、保证流比特率(GFBR)、最大流比特率(MFBR)、指示控制和最大丢包率。可根据MBS业务的实际情况，采用上述的任意分类标准，在本实施例里不做限制。
其中，每个MBS业务组对应第二字段的比特位的其中一位，比特位的数值为1时，表示比特位对应的MBS业务组的MBS控制信道配置进行更新。比特位的数值为0时，表示比特位对应的MBS业务组的MBS控制信道配置未进行更新。例如协议允许最多将多个MBS业务分为4个MBS业务组，当第二字段为0001表示MBS控制信道1的配置将进行更新，当第二字段为0011则表示MBS控制信道1的配置和MBS控制信道2的配置将进行更新。当UE对MBS控制信道1调度的MBS业务感兴趣时，则会在下一个MBS控制信道1的变更周期内去接收更新的MBS控制信道1的配置，若UE对MBS控制信道1调度的MBS业务不感兴趣时，则不会进行接收该更新的配置。
在本实施例中，读取更新的MBS控制信道的配置信息以接收MBS业务进一步包括：
读取更新的MBS控制信道的配置信息，以获取所需MBS业务的MBS业务控制信道的资源位置、用于MBS业务控制信道的无线网络临时标识及所需MBS业务的相关信息。
基站把MBS业务数据通过在MBS业务信道映射到PDSCH上发送给UE，UE通过读取MBS控制信道的更新配置，获取MBS业务信道更新的资源位置、用于MBS业务信道的更新的无线网络临时标识以及所需MBS业务的其他更新 的相关信息，其中MBS业务的相关信息是对MBS业务类型的区分，例如该相关信息可为TMGI，UE可通过该相关信息确认此MBS业务是否是自己所需求的业务。
在资源位置，使用用于MBS业务控制信道的无线网络临时标识监听MBS业务控制信道以接收所需MBS业务。
根据MBS控制信道更新的配置信息可得知MBS业务在传输信道的更新的具体位置，UE通过TMGI确认此MBS业务是自己所需求的业务，则UE可在此位置，使用用于MBS业务信道的更新的无线网络临时标识进行持续监听，如果监听到对应的无线网络临时标识，就从PDSCH去解码接收该MBS业务。
参阅图4，图4是本申请用户设备或基站一实施方式的结构示意图。本用户设备或基站10包括处理器12和通信电路11；处理器12连接通信电路11，处理器12用于执行指令以实现上述MBS多控制信道配置的更新方法或上述基于短消息的MBS控制信道配置的更新方法。
处理器12还可以称为CPU(Central Processing Unit，中央处理单元)。处理器12可能是一种集成电路芯片，具有信号的处理能力。处理器12还可以是通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)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。通用处理器可以是微处理器或者该处理器12也可以是任何常规的处理器等。
请参阅图5，图5为本申请实施方式中用户设备或基站的存储介质示意图。本申请实施例的用户设备或基站20存储有指令/程序数据21，该指令/程序数据21被执行时实现本申请的更新方法任一实施例以及任意不冲突的组合所提供的方法。其中，该指令/程序数据21可以形成程序文件以软件产品的形式存储在上述用户设备或基站20的存储介质中，以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)或处理器(processor)执行本申请各个实施方式方法的全部或部分步骤。而前述的存储介质包括：U盘、移动硬盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质，或者是计算机、服务器、手机、平板等终端设备。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性 的，例如，单元的划分，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，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
以上仅为本申请的实施方式，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (21)

  1. 一种MBS多控制信道配置的更新方法，其特征在于，所述更新方法在用户设备侧被执行，所述更新方法包括：
    接收广播控制信道的系统信息块以获取多个MBS控制信道的信息；
    从所述多个MBS控制信道中选择所需要的部分MBS控制信道，所述选择的部分MBS控制信道是调度所需MBS业务对应的MBS控制信道，监听所述选择的部分MBS控制信道以获取其中的更改通知；
    接收到所述更改通知后，在所述MBS控制信道的下一个变更周期接收更新的所述MBS控制信道的配置信息；
    读取更新的所述MBS控制信道的配置信息以接收所述所需MBS业务。
  2. 根据权利要求1所述的更新方法，其特征在于，所述多个MBS控制信道调度多个MBS业务，所述多个MBS业务按照MBS业务的类型分成多个MBS业务组，每个所述MBS业务组由一个所述MBS控制信道进行调度。
  3. 根据权利要求2所述的更新方法，其特征在于，所述从所述多个MBS控制信道中选择监听调度所需MBS业务的MBS控制信道的更改通知进一步包括：
    根据所述所需MBS业务的类型选择调度对应的所述MBS业务组的MBS控制信道；
    使用专用的无线网络临时标识监听调度所述MBS业务组的MBS控制信道的更改通知。
  4. 根据权利要求3所述的更新方法，其特征在于，所述读取更新的MBS控制信道的配置信息以接收所述所需MBS业务进一步包括：
    读取更新的所述MBS控制信道的配置信息，以获取MBS业务控制信道的资源位置、用于所述MBS业务控制信道的无线网络临时标识及所述所需MBS业务的相关信息；
    在所述资源位置，使用所述用于所述MBS业务控制信道的无线网络临时标识监听所述MBS业务控制信道以接收所述所需MBS业务。
  5. 根据权利要求1所述的更新方法，其特征在于，所述多个MBS控制信道调度多个MBS业务，多个所述MBS业务按照用户需求分成多个MBS业务组， 具有相同所述用户需求的多个UE分为一个所述MBS业务组，每个所述MBS业务组由一个所述MBS控制信道进行调度。
  6. 根据权利要求5所述的更新方法，其特征在于，所述从所述多个MBS控制信道中选择监听调度所需MBS业务的MBS控制信道的更改通知进一步包括：
    根据所述UE的用户需求选择调度对应的所述MBS业务组的所述MBS控制信道；
    使用专用的无线网络临时标识监听调度所述MBS业务组的MBS控制信道的更改通知。
  7. 根据权利要求6所述的更新方法，其特征在于，所述读取更新的MBS控制信道的配置信息以接收所述所需MBS业务进一步包括：
    读取更新的MBS控制信道的配置信息，以获取MBS业务控制信道的资源位置、用于所述MBS业务控制信道的无线网络临时标识及所述所需MBS业务的相关信息；
    在所述资源位置，使用所述用于所述MBS业务控制信道的无线网络临时标识监听所述MBS业务控制信道以接收所述所需MBS业务。
  8. 根据权利要求7所述的更新方法，其特征在于，具有相同所述用户需求的所述多个UE在相同的所述资源位置，使用相同的所述用于所述MBS业务控制信道的无线网络临时标识监听所述MBS业务控制信道以接收所述所需MBS业务。
  9. 根据权利要求1所述的更新方法，其特征在于，所述多个MBS控制信道的信息包括所述多个MBS控制信道的资源位置以及用于所述多个MBS控制信道的无线网络临时标识。
  10. 根据权利要求1所述的更新方法，其特征在于，所述更改通知在所述MBS控制信道的重复周期的第一个子帧进行接收。
  11. 根据权利要求10所述的更新方法，其特征在于，所述重复周期和所述变更周期根据MBS业务类型进行设置。
  12. 一种MBS多控制信道配置的更新方法，其特征在于，所述更新方法在基站侧被执行，所述更新方法包括：
    经广播控制信道发送系统信息块，所述系统信息块包括多个MBS控制信道的信息；
    经所述多个MBS控制信道发送包括更改通知的所述多个MBS控制信道的配置信息；
    在所述多个MBS控制信道的下一个变更周期发送所述多个MBS控制信道更新的配置信息；
    根据所述多个MBS控制信道更新的配置信息发送多个MBS业务。
  13. 根据权利要求12所述的更新方法，其特征在于，所述多个MBS控制信道调度多个MBS业务，所述多个MBS业务按照MBS业务的类型分成多个MBS业务组，每个所述MBS业务组由一个MBS控制信道进行调度。
  14. 根据权利要求12所述的更新方法，其特征在于，所述多个MBS控制信道调度多个MBS业务，所述多个述MBS业务按照用户需求分成多个MBS业务组，具有相同所述用户需求的多个UE分为一个所述MBS业务组，每个所述MBS业务组由一个MBS控制信道进行调度。
  15. 根据权利要求12所述的更新方法，其特征在于，所述多个MBS控制信道的信息包括所述多个MBS控制信道的资源位置以及用于所述多个MBS控制信道的无线网络临时标识。
  16. 根据权利要求12所述的更新方法，其特征在于，所述更改通知在所述多个MBS控制信道的重复周期的第一个子帧进行发送。
  17. 根据权利要求16所述的更新方法，其特征在于，所述重复周期和所述变更周期根据MBS业务类型进行设置。
  18. 一种用户设备，其特征在于，包括处理器和通信电路，所述处理器连接所述通信电路；
    所述处理器用于执行上述权利要求1-11中任一项所述的更新方法。
  19. 一种用户设备，存储有指令，其特征在于，所述指令被执行时实现如权利要求1-11中任一项所述的更新方法。
  20. 一种基站，其特征在于，包括处理器和通信电路，所述处理器连接所述通信电路；
    所述处理器用于执行上述权利要求12-17中任一项所述的更新方法。
  21. 一种基站，存储有指令，其特征在于，所述指令被执行时实现如权利要求12-17中任一项所述的更新方法。
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CN106470400A (zh) * 2015-08-14 2017-03-01 中兴通讯股份有限公司 单小区多播控制信道的资源配置方法、系统及装置
CN107872898A (zh) * 2016-09-28 2018-04-03 夏普株式会社 单小区多播业务接收和发送方法、以及用户设备和基站
US10588103B2 (en) * 2016-04-11 2020-03-10 Qualcomm Incorporated Synchronization for standalone LTE broadcast
CN112087720A (zh) * 2019-06-12 2020-12-15 华为技术有限公司 一种通信方法和装置

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CN106470400A (zh) * 2015-08-14 2017-03-01 中兴通讯股份有限公司 单小区多播控制信道的资源配置方法、系统及装置
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