CN116746170A

CN116746170A - Short message based MBS control channel configuration updating method

Info

Publication number: CN116746170A
Application number: CN202180089402.1A
Authority: CN
Inventors: 张鑫; 生嘉
Original assignee: JRD Communication Shenzhen Ltd
Current assignee: JRD Communication Shenzhen Ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2023-09-12
Also published as: WO2022150983A1

Abstract

The application provides a short message based MBS control channel configuration updating method, which comprises the following steps: monitoring a paging control channel or a physical downlink control channel scrambled by using a first wireless network temporary identifier to receive a short message, wherein the format of the short message uses DCI format1_0, and the short message indication field of DCI format1_0 is set to 00 to indicate the update of MBS control channel configuration; or the short message uses other downlink control information formats, wherein the short message indicates the update of MBS control channel configuration by specifying a first field in the other downlink control formats; after receiving the short message, the updated configuration information of the MBS control channel is received in the next change period of the MBS control channel so as to receive the MBS service. By the method, the UE can be prevented from receiving the configuration information updated by the MBS control channel which is not needed, so that the UE can save resources and power.

Description

Short message based MBS control channel configuration updating method

[ field of technology ]

The disclosed embodiments of the present application relate to the field of communication technologies, and more particularly, to an update method, a user equipment, and a base station for MBS control channel configuration based on short messages.

[ background Art ]

The transmission modes of the multimedia broadcast Multicast service (Multimedia Broadcast Multicast Service, MBMS) of LTE can be classified into SC-PTM (Single Cell Point-To-Multipoint) and MBSFN (Multicast/Multicast single frequency network). Among the transmission modes of SC-PTM, the transmission mode of MBMS configuration is: acquiring a subframe position of an MBMS control channel and an SC-RNTI (Single Cell-Radio Network Temporary Identity) of the MBMS control channel through an SIB20, and acquiring SC-MCCH (Single Cell Multicast Control Channel ) information by monitoring the SC-RNTI at the subframe position of the MBMS control channel by a UE; the UE reads the SC-MCCH information, acquires the subframe position of the MBMS service channel and the G-RNTI (Group-Radio Network Temporary Identity, group radio network temporary identifier) of the MBMS service information, and acquires the MBMS service by monitoring the G-RNTI at the subframe position of the MBMS service channel.

If there is a new MBMS service to start transmission, the configuration of the MBMS will also change, and in SC-PTM, as shown in fig. 1, the method for updating the configuration of the MCCH is as follows:

(1) Monitoring a change notice sent by a first subframe of each repetition period of the MCCH;

(2) And after receiving the change notification, the UE uses the updated MCCH configuration in the next change period.

However, in such a configuration update scheme, the UE needs to constantly monitor the modification notification to acquire the updated MCCH configuration, even if a part of the updated MCCH configuration is not required by the UE, so that the cost of the UE monitoring the modification notification increases and is more power consuming.

[ application ]

According to an embodiment of the present application, the present application proposes an updating method for MBS control channel configuration based on short messages to solve the above technical problems.

According to an aspect of the present application, there is provided an update method performed at a UE side, including: according to the state of the UE, monitoring a paging control channel or a physical downlink control channel scrambled by using a first wireless network temporary identifier to receive a short message, wherein the format of the short message uses a downlink control information format1_0, and when a short message indication field of the downlink control information format1_0 is set to 00, updating the configuration of the MBS control channel is indicated;

or the short message uses other downlink control information formats, wherein the short message indicates the update of MBS control channel configuration by specifying a first field in the other downlink control formats;

after receiving the short message, receiving updated configuration information of the MBS control channel in the next change period of the MBS control channel;

and reading the updated configuration information of the MBS control channel to receive MBS service.

According to a second aspect of the present application, there is provided an updating method, which is performed at a base station side, the updating method comprising:

according to the state of the UE, sending a short message through a paging control channel or a physical downlink control channel which is scrambled by using a first wireless network temporary identifier, wherein the format of the short message uses a downlink control information format1_0, and the short message indication of the downlink control information format1_0 indicates the update of MBS control channel configuration when the short message indication is set to 00;

transmitting updated configuration information of the MBS control channel in the next change period of the MBS control channel;

and sending the MBS service according to the updated configuration information of the MBS control channel.

According to a third aspect of the present application there is provided a user equipment comprising a processor and communication circuitry, the processor being connected to the communication circuitry, the processor being for performing the updating method of the first aspect.

According to a fourth aspect of the present application there is provided a user equipment having stored instructions which when executed implement the updating method of the first aspect.

According to a fifth aspect of the present application there is provided a base station comprising a processor and communication circuitry, the processor being connected to the communication circuitry, the processor being for performing the updating method of the second aspect.

According to a sixth aspect of the present application there is provided a base station storing instructions which when executed implement the updating method of the second aspect.

The beneficial effects of the application are as follows: according to the application, the UE monitors the short message, the short message indication field in the downlink control format1_0 of the short message is set to 00 to acquire the update of the MBS control channel configuration, or the short message adopts the first specified field in other downlink control formats to acquire the update of the MBS control channel configuration, so that the updated configuration information of the MBS control channel is received to receive MBS service in the next change period of the MBS control channel as required, thereby avoiding the UE from receiving the unnecessary update configuration information of the MBS control channel, reducing the resource cost for receiving the configuration information by the UE and saving electricity by the UE.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. Wherein:

fig. 1 is a schematic diagram of a repetition period and a modification period of an MCCH in an MBMS service;

FIG. 2 is a flow chart of a method for updating MBS multi-control channel configuration according to the application;

fig. 3 is a flow chart of a method for updating MSB control channel configuration based on short message according to the present application;

fig. 4 is a schematic structural diagram of a ue or a base station according to an embodiment of the transmission method of the present application;

fig. 5 is a schematic storage diagram of a ue or a base station according to an embodiment of the transmission method of the present application;

[ detailed description ] of the application

the following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

In the conventional MBMS configuration update scheme, the UE needs to constantly monitor the BCCH (Broadcast Control Channel ) and the MCCH to acquire a change notification in order to receive an updated MCCH configuration in the next change period, even if a partially updated MCCH configuration is not required by the UE. For example, the UE only needs to send the MBMS service 1, and since the UE listens to the SC-N-RNTI (Single Cell-New-Radio Net Temporary Identity) in the first subframe of the repetition period of each MCCH, when the network side starts to transmit the MBMS service 2 and sends the change notification, the UE will receive the updated MCCH configuration for scheduling the MBMS service 2 in the next change period of the MCCH after listening to the change notification, in this case, the cost for the UE to listen to the change notification increases and consumes more power.

The application provides a method for updating multi-control channel configuration in MBS service. Referring to fig. 2, fig. 2 is a flow chart of an updating method of MBS multi-control channel configuration according to the present application.

And S110, receiving a system information block of the broadcast control channel to acquire information of a plurality of MBS control channels.

The UE receives a system information block transmitted by the base station via a broadcast control channel, the system information block including information of a plurality of MBS control channels. The information of the MBS control channels includes resource locations of the MBS control channels and a radio network temporary identifier for the MBS control channels, where the resource locations of the MBS control channels may specifically be locations of subframes on a physical channel, and the radio network temporary identifier for the MBS control channels is a CRC (Cyclic Redundancy Check ) part for scrambling MBS control channel information, and may be an identifier of different UEs within signal information between the UEs and the base station.

S120, selecting a needed partial MBS control channel from a plurality of MBS control channels, wherein the selected partial MBS control channel is the MBS control channel corresponding to the MBS service needed by scheduling, and monitoring the selected partial MBS control channel to acquire change notification.

And scheduling a plurality of MBS services through a plurality of MBS control channels, wherein one MBS control channel needs to schedule a group of MBS services (namely, the group of MBS services comprises at least one MBS service), and the UE can select the MBS control channel for monitoring and scheduling the group of MBS services from the plurality of control channels according to the MBS service group to which the service required by the UE belongs so as to receive the change notification.

In an embodiment, the base station transmits the change notification in the first subframe of each repetition period of the MBS control channel, and the UE listens for receiving the change notification in the first subframe of each repetition period of the MBS control channel.

And S130, after receiving the change notification, receiving updated configuration information of the MBS control channel in the next change period of the MBS control channel.

After receiving the change notification, the UE may learn that the configuration of the MBS control channel is to be updated, but in the current change period of the MBS control channel, the UE still uses the original MBS configuration to receive the MBS service, and in the next change period, the UE receives the updated configuration information of the MBS control channel.

In an embodiment, the repetition period and the change period of the MBS control channel may be set according to the MBS service type, for example, the MBS service scheduled by the MBS control channel 1 is a V2X (vehicle to everything, vehicle-to-outside information exchange) service that changes frequently, and the repetition period and the change period of the MBS control channel 1 may be set to be relatively short, so that the UE can receive the change notification in a faster repetition period and receive the updated configuration to receive the V2X service in a faster change period. And the MBS service scheduled by the MBS control channel 2 is a common broadcast service with slow change, the repetition period and the change period of the MBS control channel 1 can be set to be longer relatively.

And S140, reading the updated configuration information of the MBS control channel to receive the required MBS service.

The configuration information of the updated MBS control channel may include updated resource locations of the MBS service control channels of the MBS service required by the UE, updated wireless network temporary identifiers for the MBS service control channels, and related information of the required MBS service. For example, the radio network temporary identifier may be an RNTI identifier, and the related information of the required MBS service may be indicated by a TMGI (Temporary Mobile Group Identity, temporary mobile group identifier), and the radio network temporary identifier is updated from an original RNTI1 to an RNTI2, and the related information of the required MBS service is updated from the original TMGI1 to the TMGI2. According to the received updated configuration information, the UE may receive the required MBS service.

According to the updating method of MBS multi-control channel configuration, the UE selectively monitors and schedules the change notification of the MBS control channel of the MBS service group according to the MBS service group to which the required MBS service belongs so as to receive the configuration information required by the UE, thereby avoiding the UE from continuously repeatedly monitoring the change notification and receiving unnecessary configuration information, reducing the resource cost of monitoring the change notification and saving electricity for the UE.

In an embodiment, the plurality of MBS control channels schedule the plurality of MBS services, which may be divided into a plurality of MBS service groups according to MBS service types, each MBS service group being scheduled by one MBS control channel. The MBS service types may be classified according to delay parameters, for example, MBS services requiring less than a specific delay parameter may be classified into an MBS service group, for example, V2X services may strictly be classified into a group for delay requirements, and the scheduling information is carried in the MBS control channel 1. And the MBS service larger than the specific time delay parameter is divided into another MBS service group, for example, the common broadcast service of MBS service 1 and MBS service 2 can be divided into another MBS service group, wherein MBS service 1 and MBS service 2 can be respectively identified by TMGI1 and TMGI2, and the scheduling information is carried in MBS control channel 2. The MBS service type classification may also be classified according to reliability parameters, for example, MBS services less than a specific bit error rate requirement are classified into one MBS service group, and MBS services greater than a specific bit error rate requirement are classified into another MBS service group. Of course, the classification criteria of MBS service types may also be 5QI (5G Quality identity), ARP, reflected Qos attributes (Reflective QoS Attribute, RQA), guaranteed stream bit rate (GFBR), maximum stream bit rate (MFBR), indication control and maximum packet loss rate. Any of the above classification criteria may be adopted according to the actual situation of the MBS service, and is not limited in this embodiment.

In this embodiment, the change notification for selecting the repetition period of the MBS control channel corresponding to the MBS required for listening to the scheduling from the plurality of MBS control channels further includes:

and selecting and scheduling MBS control channels of corresponding MBS service groups according to the type of the required MBS service.

And selecting and scheduling MBS control channels of corresponding MBS service groups according to the types of MBS services required by the UE. For example, the MBS service required by the UE is a V2X service, the MBS service is classified according to the time delay requirement, the MBS service group 1 is a V2X service, the configuration information including the TMGI of the MBS service group 1 is transmitted through the MBS control channel 1, the MBS service group 2 is a common video stream service, and the configuration information including the TMGI of the MBS service group 2 is transmitted through the MBS control channel 2. At this time, the UE may identify the required service in the MBS service group 1 through the TMGI, thereby selecting the MBS control channel 1 for scheduling the MBS service group 1.

And monitoring change notification of the MBS control channel corresponding to the MBS service group by using the special wireless network temporary identifier.

The UE listens to MBS control channel 1 using the dedicated radio network temporary identifier to receive the change notification of the MBS service group 1 without listening to MBS control channel 2. The dedicated radio network temporary identifier may be an N-RNTI (New-Radio Network Temporary Identity, new radio network temporary identifier) that identifies that the MBS control channel 1 carries a change notification.

In this embodiment, reading the updated configuration information of the MBS control channel to receive the required MBS service further includes:

and reading the updated configuration information of the MBS control channel to acquire the resource position of the MBS service control channel of the needed MBS service, the wireless network temporary identification for the MBS service control channel and the related information of the needed MBS service.

The base station maps MBS service data to PDSCH (Physical Downlink Shared Channel ) through MBS service channel, and sends to UE, and the UE obtains updated resource position of MBS service channel, updated wireless network temporary identification for MBS service channel and other updated relevant information of required MBS service through reading updated configuration of MBS control channel, wherein the relevant information of MBS service is differentiation of MBS service type, for example, the relevant information can be TMGI, and the UE can confirm whether the MBS service is required service by itself or not through the relevant information.

In the resource position, the wireless network temporary identifier for the MBS service control channel is used for monitoring the MBS service control channel to receive the needed MBS service.

The updated specific position of the MBS service in the transmission channel can be known according to the updated configuration information of the MBS control channel, the UE confirms that the MBS service is the service required by the UE through TMGI, then the UE can continuously monitor the position by using the updated wireless network temporary identifier for the MBS service channel, and if the corresponding wireless network temporary identifier is monitored, the MBS service is decoded and received from PDSCH.

In another embodiment, the plurality of MBS control channels schedule the plurality of MBS services, the plurality of MBS services are divided into a plurality of MBS service groups according to user requirements, and the plurality of UEs having the same user requirements are divided into one MBS service group, each MBS service group being scheduled by one MBS control channel. For example, when the UE is a vehicle-mounted device, there will be a requirement for V2X services, and the vehicle-mounted terminal may be divided into MBS service groups, and the scheduling information is carried in MBS control channel 1. When the UE is a device with a high definition screen, there is a need for Gao Qingan broadcast programs, and the UE can be classified into another MBS service group, and the scheduling information is carried in MBS control channel 2.

In this embodiment, selecting, from the plurality of MBS control channels, a notification of a change in a repetition period of an MBS control channel corresponding to a desired MBS service to be monitored further includes:

and selecting and scheduling MBS control channels of the corresponding MBS service group according to the user demands of the UE.

And selecting and scheduling MBS control channels of the corresponding MBS service group according to the user demands of the UE. For example, the MBS service required by the UE is a V2X service, the MBS service is classified according to the user requirement, all UEs receiving the MBS service in the same cell are divided into two groups, MBS service group 1 is a V2X service, configuration information including TMGIs of MBS service group 1 is transmitted through MBS control channel 1, MBS service group 2 is a common video stream service, and configuration information including TMGIs of MBS service group 2 is transmitted through MBS control channel 2. At this time, the UE may identify the required service in the MBS service group 1 through the TMGI, thereby selecting the MBS control channel 1 for scheduling the MBS service group 1.

The UE listens to MBS control channel 1 using the dedicated radio network temporary identifier to receive the change notification of the MBS service group 1 without listening to MBS control channel 2. The dedicated radio network temporary identifier may be an N-RNTI, which identifies that the MBS control channel 1 carries a change notification.

In this embodiment, reading the configuration information of the updated MBS control channel to receive the required MBS service further includes:

The base station maps MBS service data to PDSCH through MBS service channel to send to UE, the UE obtains updated resource position of MBS service channel, updated radio network temporary mark for MBS service channel and other updated related information of needed MBS service through reading updated configuration of MBS control channel, all UE belonging to same MBS service group share one updated radio network temporary mark for MBS service channel, for example, the radio network temporary mark can be G-RNTI. The related information of the MBS service is a distinction of MBS service types, for example, the related information may be a TMGI, and the UE may confirm whether the MBS service is a service required by itself through the related information.

According to the updated configuration information of the MBS control channel, the specific position of the MBS service in the transmission channel can be known, and all the UEs of the same MBS service group confirm that the MBS service is the service required by the UEs per se through TMGI, so that all the UEs of the same MBS service group can monitor at the position by using the same wireless network temporary identifier for the MBS service control channel, for example, G-RNTI is used, and if the corresponding wireless network temporary identifier is monitored, the MBS service is decoded and received from PDSCH. For example, all vehicle-mounted terminal users of the MBS service group 1 listen to receive V2X service using G-RNTI1 at the updated resource location read by the MBS control channel 1, and all high definition screen device users of the MBS service group 2 listen to receive video stream service using G-RNTI2 at the updated resource location read by the MBS control channel 2.

The application also provides a short message-based MBS control channel configuration updating method. Referring to fig. 3, fig. 3 is a flow chart of an updating method of MBS control channel configuration based on short message according to the present application.

S210: according to the state of the UE, monitoring a paging control channel or a physical downlink control channel scrambled by using a first wireless network temporary identifier to receive a short message, wherein the format of the short message uses a downlink control information format1_0, and the short message indication of the downlink control information format1_0 indicates updating of MBS control channel configuration when the short message indication is set to 00.

Or 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 formats.

The UE may be in a connected state, an inactive state or an idle state, and when the UE is in a connected state, the base station transmits a short message through a physical downlink control channel scrambled with a first radio network temporary identifier, which may be a P-RNTI (Paging-Radio Network Temporary Identity), and the UE receives the short message by monitoring the physical downlink control channel scrambled with the P-RNTI. When the UE is in an inactive state or an idle state, the base station transmits a short message through a paging control channel scrambled with a first radio network temporary identity, which may be a P-RNTI, and the UE receives the short message through monitoring the paging control channel scrambled with the P-RNTI.

The short message uses the downlink control information format1_0 (Downlink Control Information Format1_0,DCI format1_0). The DCI format1_0 scrambled with the P-RNTI may be used to carry scheduling information of paging messages, may be used to transmit short messages, or may carry both, and the specific field descriptions are shown in table 1.

TABLE 1

As can be seen from the above table, the value of the short message indication field (Short Messages Indicator) of DCI format1_0, which is 00, is not defined for use, and may be defined as an update of MBS control channel configuration.

In another embodiment, the short message format may be other downlink control information formats. The update configured for the MBS control channel may be indicated by the added bits in DCI format1_0, or other downlink control information formats may be redefined, where the first field is specified to indicate the update of the MBS control channel, and the first field is one or more bits at any position in the other downlink control information formats. For example, 1 may be defined to represent an update of the MBS control channel configuration, and 01 may be defined to represent an update of the MBS control channel configuration.

S220: after receiving the short message, the updated configuration information of the MBS control channel is received in the next change period of the MBS control channel.

After receiving the short message, the UE can learn that the configuration of the MBS control channel is to be updated, but the UE still uses the original MBS configuration to receive the MBS service in the current modification period of the MBS control channel, and in the next modification period, the UE receives the updated configuration information of the MBS control channel.

In an embodiment, the MBS control channel changing period may be set according to the MBS service type, for example, the MBS service scheduled by the MBS control channel 1 is a V2X service with frequent change, and the changing period of the MBS control channel 1 may be relatively set to be a short period, so that the UE can receive the updated configuration to receive the V2X service in a faster changing period. And the MBS service scheduled by the MBS control channel 2 is a common broadcast service with slow change, the change period of the MBS control channel 1 can be set to be longer relatively.

S230: and reading the updated configuration information of the MBS control channel to receive the MBS service.

The configuration information of the updated MBS control channel may include an updated resource location of an MBS service control channel of the MBS service required by the UE, an updated radio network temporary identification for the MBS service control channel, and related information of the required MBS service. For example, the radio network temporary identifier may be an RNTI identifier, and the related information of the required MBS service may be indicated by a TMGI, where the radio network temporary identifier is updated from an original RNTI1 to an RNTI2, and the related information of the required MBS service is updated from the original TMGI1 to the TMGI2. According to the received updated configuration information, the UE may receive the required MBS service.

In another embodiment, when the format of the short message adopts other downlink control information formats, the second field may be specified in the other downlink control information formats to indicate that part or all of the MBS services in the plurality of MBS services are updated. The second field is one or more bits at any position in the other downlink control information format.

In an embodiment, the plurality of MBS services may be divided into a plurality of MBS service groups according to user requirements, and the plurality of UEs having the same user requirements are divided into one MBS service group, each MBS service group is scheduled by one MBS control channel, and the plurality of UEs of each MBS service group monitor the MBS service channel using the same second wireless network temporary identifier to receive the required MBS service. For example, when the UE is a vehicle-mounted device, there will be a requirement for V2X services, and the vehicle-mounted terminal may be divided into MBS service groups, and the scheduling information is carried in MBS control channel 1. When the UE is a device with a high definition screen, there will be a demand for high definition broadcast programs, and the UE may be classified into another MBS service group, and the scheduling information is carried in MBS control channel 2. The second radio network temporary identifier may be a G-RNTI, and all UEs belonging to one MBS service group receive the same MBS service using the same G-RNTI.

Wherein, each MBS service group corresponds to one bit 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. 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 is not updated. For example, the protocol allows to divide the UEs into at most 4 MBS service groups, and all UEs of each MBS service group monitor the service by using the same G-RNTI, where the G-RNTI is associated with the MBS service type. When the second field is 0001, it indicates that the configuration of MBS control channel 1 is to be updated, and when the second field is 0011, it indicates that the configuration of MBS control channel 1 and the configuration of MBS control channel 2 are to be updated, UE1 of the corresponding MBS service group 1 will know the configuration of MBS control channel 1 that needs to receive the update in the modification period of the next MBS control channel 1, and UE2 of MBS service group 2 will also know the configuration of MBS control channel 2 that needs to receive the update in the modification period of the next MBS control channel 2. The base station scrambles different MBS control channels by using different G-RNTIs, so that only UEs of MBS service groups scheduled by the MBS control channels corresponding to the G-RNTIs can receive the short message indicating the MBS control channel configuration update, but other MBS service groups cannot receive the short message.

In another embodiment, the plurality of MBS services are divided into a plurality of MBS service groups according to service types, each MBS service group being scheduled by one MBS control channel. The MBS service types may be classified according to delay parameters, for example, MBS services requiring less than a specific delay parameter may be classified into an MBS service group, for example, V2X services may strictly be classified into a group for delay requirements, and the scheduling information is carried in the MBS control channel 1. And the MBS service larger than the specific time delay parameter is divided into another MBS service group, for example, the common broadcast service of MBS service 1 and MBS service 2 can be divided into another MBS service group, wherein MBS service 1 and MBS service 2 can be respectively identified by TMGI1 and TMGI2, and the scheduling information is carried in MBS control channel 2. The MBS service type classification may also be classified according to reliability parameters, for example, MBS services less than a specific bit error rate requirement are classified into one MBS service group, and MBS services greater than a specific bit error rate requirement are classified into another MBS service group. Of course, the classification criteria of MBS service types may also be 5QI (5G Quality identity), ARP, reflected Qos attributes (Reflective QoS Attribute, RQA), guaranteed stream bit rate (GFBR), maximum stream bit rate (MFBR), indication control and maximum packet loss rate. Any of the above classification criteria may be adopted according to the actual situation of the MBS service, and is not limited in this embodiment.

Wherein, each MBS service group corresponds to one bit 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. 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 is not updated. For example, the protocol allows dividing up to 4 MBS services into 4 MBS service groups, when the second field 0001 indicates that the configuration of MBS control channel 1 is to be updated, and when the second field 0011 indicates that the configuration of MBS control channel 1 and the configuration of MBS control channel 2 are to be updated. When the UE is interested in the MBS service scheduled by the MBS control channel 1, the UE will receive the updated configuration of the MBS control channel 1 in the modification period of the next MBS control channel 1, and if the UE is not interested in the MBS service scheduled by the MBS control channel 1, the UE will not receive the updated configuration.

In this embodiment, reading the updated configuration information of the MBS control channel to receive the MBS service further includes:

The base station maps MBS service data to PDSCH through MBS service channel to send to UE, the UE obtains updated resource position of MBS service channel, updated wireless network temporary identification for MBS service channel and other updated relevant information of needed MBS service through reading updated configuration of MBS control channel, wherein the relevant information of MBS service is differentiation of MBS service type, for example, the relevant information can be TMGI, and the UE can confirm whether the MBS service is required service by itself or not through the relevant information.

Referring to fig. 4, fig. 4 is a schematic structural diagram of an embodiment of a ue or a base station according to the present application. The present user equipment or base station 10 comprises 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 instructions to implement the above method for updating MBS multi-control channel configuration or the above method for updating MBS control channel configuration based on short messages.

The processor 12 may also be referred to as a CPU (Central Processing Unit ). The processor 12 may be an integrated circuit chip having signal processing capabilities. Processor 12 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor 12 may be any conventional processor or the like.

Referring to fig. 5, fig. 5 is a schematic diagram of a storage medium of a ue or a base station according to an embodiment of the present application. The user equipment or base station 20 of the embodiments of the present application stores instructions/program data 21 which, when executed, implements the methods provided by any of the embodiments of the update methods of the present application, as well as any non-conflicting combinations. The instructions/program data 21 may form a program file stored in the storage medium of the above-mentioned user equipment or base station 20 in the form of a software product, so that a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) performs all or part of the steps of the methods according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, an optical disk, or other various media capable of storing program codes, or a terminal device such as a computer, a server, a mobile phone, a tablet, or the like.

In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of elements is merely a logical functional division, and there may be additional divisions of actual implementation, e.g., multiple elements or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

The foregoing is only the embodiments of the present application, and therefore, the patent scope of the application is not limited thereto, and all equivalent structures or equivalent processes using the descriptions of the present application and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the application.

Claims

An update method of MBS control channel configuration based on short messages, wherein the update method is performed at a UE side of a user equipment, the update method comprising:

according to the state of the UE, monitoring a paging control channel or a physical downlink control channel scrambled by using a first wireless network temporary identifier to receive a short message, wherein the format of the short message uses a downlink control information format1_0, and the short message indication field of the downlink control information format1_0 indicates the update of MBS control channel configuration when the short message indication field is set to 00;

or the short message uses other downlink control information formats, wherein the short message indicates the update of the MBS control channel configuration by specifying a first field in the other downlink control formats;

after receiving the short message, receiving updated configuration information of the MBS control channel in the next change period of the MBS control channel;

and reading the updated configuration information of the MBS control channel to receive MBS service.
The updating method according to claim 1, wherein the monitoring the paging control channel or the physical downlink control channel scrambled using the dedicated radio network temporary identifier to receive the short message according to the state of the UE further comprises:

when the UE is in a connection state, monitoring a physical downlink control channel scrambled by using a first wireless network temporary identifier to receive a short message;

and when the UE is in an idle state or a non-activated state, monitoring a paging control channel scrambled by using the first wireless network temporary identifier to receive the short message.
The updating method according to claim 1, wherein the short message using other downlink control information formats further comprises:

and a second field is specified in the other downlink control information formats to indicate that part or all of the plurality of MBS services are updated.
The updating method of claim 3, wherein the plurality of MBS services are divided into a plurality of MBS service groups according to user requirements, a plurality of UEs having the same user requirements are divided into one of the MBS service groups, each of the MBS service groups is scheduled by one of the MBS control channels, and the plurality of UEs of each of the MBS service groups monitor the MBS service channels using the same second wireless network temporary identifier to receive the required MBS service.
The method of updating according to claim 4, wherein each MBS service group corresponds to one of bits of the second field, and when a value of the bit is 1, an MBS control channel configuration of the MBS service group corresponding to the bit is updated; and when the numerical value of the bit is 0, the MBS control channel configuration of the MBS service group corresponding to the bit is not updated.
The updating method of claim 3, wherein the plurality of MBS services are divided into a plurality of MBS service groups according to service types, each of the MBS service groups being scheduled by one of the MBS control channels.
The method for updating the MBS control channel configuration of each MBS service group corresponding to a bit of said second field according to claim 6, wherein when the value of said bit is 1, the MBS control channel configuration of said MBS service group corresponding to said bit is updated; and when the numerical value of the bit is 0, the MBS control channel configuration of the MBS service group corresponding to the bit is not updated.
The updating method according to claim 1, wherein the reading the updated configuration information of the MBS control channel to receive MBS service further comprises:

reading the updated configuration information of the MBS control channel to obtain the resource position of the MBS service control channel of the needed MBS service, the wireless network temporary identification for the MBS service control channel and the related information of the MBS service;

and monitoring the MBS service control channel by using the wireless network temporary identifier for the MBS service control channel at the resource position so as to receive the MBS service.
The updating method according to claim 8, wherein the change period of the MBS control channel is set according to the type of the MBS service.
An update method of MBS multi-control channel configuration, wherein the update method is performed at a base station side, the update method comprising:

according to the state of the UE, sending a short message through a paging control channel or a physical downlink control channel which is scrambled by using a first wireless network temporary identifier, wherein the format of the short message uses a downlink control information format1_0, and the short message indication of the downlink control information format1_0 indicates the update of MBS control channel configuration when the short message indication is set to 00;

or the short message uses other downlink control information formats, wherein the short message indicates the update of the MBS control channel configuration by specifying a first field in the other downlink control formats;

transmitting updated configuration information of the MBS control channel in the next change period of the MBS control channel;

and sending the MBS service according to the updated configuration information of the MBS control channel.
The updating method according to claim 10, wherein the transmitting the short message via the paging control channel or the physical downlink control channel scrambled using the first radio network temporary identifier according to the state of the UE further comprises:

when the UE is in a connection state, sending a short message through a physical downlink control channel scrambled by using a first wireless network temporary identifier;

and when the UE is in an idle state or a non-activated state, sending a short message through a paging control channel scrambled by using the first wireless network temporary identifier.
The updating method according to claim 10, wherein the short message using other downlink control information formats further comprises:

and the second field is specified in the other downlink control formats to indicate that part or all of the MBS services of the plurality of MBS services are updated.
The updating method of claim 12, wherein the plurality of MBS services are divided into a plurality of MBS service groups according to user requirements, a plurality of UEs having the same user requirements are divided into one of the MBS service groups, each of the MBS service groups is scheduled by one of the MBS control channels, and the plurality of UEs of each of the MBS service groups monitor the MBS service channels using the same second wireless network temporary identifier to receive the required MBS service.
The method for updating according to claim 13, wherein each of the MBS service groups corresponds to one of bits of the second field, and when a value of the bit is 1, the MBS service indicating the requirement of the MBS service group to which the bit corresponds is updated; and when the numerical value of the bit is 0, the MBS service of the requirement of the MBS service group corresponding to the bit is not updated.
The update method of claim 12, wherein the plurality of MBS services are divided into a plurality of MBS service groups according to service types, each of the MBS service groups being scheduled by one of the MBS control channels.
The method for updating according to claim 15, wherein each of the MBS service groups corresponds to one of bits of the second field, and when a value of the bit is 1, the MBS service indicating the requirement of the MBS service group to which the bit corresponds is updated; and when the numerical value of the bit is 0, the MBS service of the requirement of the MBS service group corresponding to the bit is not updated.
A user device comprising a processor and a communication circuit, the processor being coupled to the communication circuit;

the processor being adapted to perform the updating method of any of the preceding claims 1-9.
A user equipment storing instructions which when executed implement the updating method according to any of claims 1-9.
A base station comprising a processor and a communication circuit, said processor being coupled to said communication circuit;

the processor is configured to perform the updating method of any of the preceding claims 10-16.
A base station storing instructions that when executed implement the updating method of any of claims 10-16.