WO2022141084A1 - Procédé de transmission pour configuration mbs - Google Patents

Procédé de transmission pour configuration mbs Download PDF

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Publication number
WO2022141084A1
WO2022141084A1 PCT/CN2020/140984 CN2020140984W WO2022141084A1 WO 2022141084 A1 WO2022141084 A1 WO 2022141084A1 CN 2020140984 W CN2020140984 W CN 2020140984W WO 2022141084 A1 WO2022141084 A1 WO 2022141084A1
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WO
WIPO (PCT)
Prior art keywords
mbs
system information
transmission method
information block
configuration
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PCT/CN2020/140984
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English (en)
Chinese (zh)
Inventor
张鑫
生嘉
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捷开通讯(深圳)有限公司
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Publication date
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Priority to PCT/CN2020/140984 priority Critical patent/WO2022141084A1/fr
Priority to CN202080108295.8A priority patent/CN116711393A/zh
Publication of WO2022141084A1 publication Critical patent/WO2022141084A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels

Definitions

  • the disclosed embodiments of the present invention relate to the field of communication technologies, and more particularly, to a method for transmitting an MBS configuration and a user equipment.
  • 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 MBMS Control Channel, single cell MBMS control channel) information by monitoring SC-RNTI at the subframe position of the MBMS control channel; the UE reads the SC-MCCH information and obtains MBMS The subframe position of the service channel and the G-RNTI (Rroup-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 MBS (Multicast Broadcast Service) transmission mode is PTM (Point to Multipoint, point-to-multipoint transmission) and PTP (Point to Point, point-to-point transmission) two transmission modes.
  • the network side can determine the transmission mode of the MBS service according to the implementation of the MBS service, such as QoS parameters, channel quality, or the number of UEs (User equipment, user equipment) receiving the service, so that the network side has more flexible resource scheduling. Way. For example, in a cell, only one UE needs to receive the MBS service temporarily, and the PTP transmission mode can be selected. However, when multiple UEs need to receive MBS services at the same time, the PTM transmission mode can be selected. If the quality of the transmission channel borne by the current MBS service is poor and the QoS requirement of the MBS service is high, the network side will select the PTP transmission mode to ensure the transmission of the MBS service.
  • MBS services and transmission modes are different, so it is necessary to propose a transmission protocol for MBS configuration.
  • the present invention proposes a transmission method to solve the technical problem of MBS configuration transmission.
  • a communication method is provided.
  • the transmission method is performed on the UE side, and includes: a system information module for receiving a broadcast control channel, and receiving an MBS service according to the system information module.
  • 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 above-mentioned transmission method.
  • a user equipment stores an instruction, and when the instruction is executed, the above-mentioned transmission method is implemented.
  • the present application directly receives the system information block including the resource location of the MBS service channel and the wireless network temporary identifier used for the MBS service channel through the UE, so that the resource location of the MBS service channel can be used for monitoring directly at the resource location of the MBS service channel.
  • the wireless network temporary identification of the MBS service channel is used to decode and receive the MBS service, which shortens the transmission time configured in the MBS service, so that the UE can receive the MBS service in a shorter time.
  • FIG. 1 is a schematic diagram of a one-step transmission flow diagram of a transmission method embodiment of the present application
  • FIG. 2 is a schematic diagram of a two-step transmission process according to an embodiment of the transmission method of the present application
  • FIG. 3 is a schematic diagram of a repetition period and a modification period of an MBS control channel according to an embodiment of the transmission method of the present application;
  • FIG. 4 is a schematic flowchart of broadcast on demand according to an embodiment of the transmission method of the present application.
  • FIG. 5 is a schematic flowchart of broadcasting on demand according to an embodiment of the transmission method of the present application.
  • FIG. 6 is a schematic structural diagram of a user equipment or a base station according to an embodiment of a transmission method of the present application
  • FIG. 7 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.
  • FIG. 1 is a schematic diagram of a one-step transmission process according to an embodiment of the transmission method of the present application.
  • S110 Receive a system information block of the broadcast control channel, where the system information block includes the resource location of the MBS service channel, the wireless network temporary identifier used for the MBS service channel, and the related information of the MBS service.
  • the system information module received by the UE is sent by the base station through the broadcast control channel.
  • the system information module may include the resource location of the MBS service channel, the wireless network temporary identifier used for the MBS service channel, and the related information of the MBS service, wherein the MBS service channel
  • the service channel is used to carry the service information of the MBS, and is transmitted through PDSCH (Physical Downlink Share CHannel, downlink shared physical channel).
  • the resource location of the MBS service channel can specifically be the location of the subframe on the physical channel, for example, the subframe of the MBS service.
  • the frame is 10 time slots, and the information of the MBS traffic channel is in the first time slot.
  • the wireless network temporary identifier used for the MBS service channel is the CRC part used to scramble the MBS service channel information, and can be used as the identifier of different UEs in the signal information between the UE and the base station.
  • the relevant information of the MBS service is to distinguish the type of the MBS service.
  • the relevant information can be TMGI (Temporary Mobile Group Identity, temporary mobile group identity), and the UE can confirm whether the MBS service is the service required by the UE through the relevant information. .
  • S120 Decode and receive the MBS service by listening to the wireless network temporary identifier for the MBS service channel at the resource location of the MBS service channel.
  • the base station sends the MBS service data to the UE by mapping the MBS service channel to the PDSCH.
  • the UE confirms that the MBS service is the service it needs through the relevant information of the MBS service, such as TMGI, and the UE obtains the resource location of the MBS service channel through the MBS service channel.
  • the specific position of the required MBS service in the physical channel is known, for example, in the first time slot of the subframe, the UE can continuously monitor the wireless network temporary identifier used for the MBS service channel at this position. If the wireless network temporary identifier is obtained, the MBS service is decoded and received from the PDSCH.
  • the configuration of the system information block and the configuration of the MBS control channel may be a single-cell configuration or a multi-cell configuration in a specific area.
  • the configuration of the system information block is a single-cell configuration, that is, the system information block is valid only in this cell, and the configuration of the system information block is a multi-cell configuration in a specific area, that is, the system information block is valid in multiple cells in a specific area.
  • the specific area may be an area of a plurality of adjacent cells.
  • the scheme of directly scheduling the MBS configuration through the system information block can shorten the overall transmission delay of the MBS configuration transmission, so that the UE can receive the MBS service in a shorter time.
  • the content contained in the system information block of the MBS may be different, so the configuration transmission method of the MBS is also different.
  • FIG. 2 is a schematic diagram of a two-step transmission process according to an embodiment of the transmission method of the present application.
  • S210 Receive the system information block of the broadcast control channel, where the system information module includes the resource location of the MBS control channel and the wireless network temporary identifier used for the MBS control channel.
  • the system information module received by the UE is sent by the base station via the broadcast control channel.
  • the system information module may include the resource location of the MBS control channel and the wireless network temporary identifier used for the MBS control channel, where the MBS control channel is used to carry the MBS
  • the control information is transmitted through the PDSCH.
  • the resource location of the MBS control channel can be the location of the subframe on the physical channel. For example, the subframe of the MBS service is 10 time slots, and the MBS control channel information is in the first time slot. .
  • the wireless network temporary identifier used for the MBS control channel is the CRC part used to scramble the MBS control channel information, and can be used as the identifier of different UEs in the signal information between the UE and the base station.
  • S220 Decoding the received information of the MBS control channel by monitoring the wireless network temporary identifier for the MBS control channel at the resource location of the MBS control channel.
  • the base station sends the information of the MBS control channel to the UE by mapping the MBS control channel to the PDSCH, and the UE can know the specific location of the required information of the MBS control channel in the physical channel through the obtained resource location of the MBS control channel.
  • the UE can continuously monitor the wireless network temporary identification used for the MBS control channel at this position. If the corresponding wireless network temporary identification is monitored, it will decode and receive the information of the MBS control channel from the PDSCH. .
  • S230 Read the information of the MBS control channel, obtain the resource position of the MBS service channel, the wireless network temporary identifier used for the MBS service channel, and the related information of the MBS service, and monitor the resource position of the MBS service channel by monitoring the information used for the MBS service channel.
  • the wireless network is temporarily identified to decode and receive MBS services.
  • 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 resource location of the MBS service channel, the wireless network temporary identifier used for the MBS service channel, and the MBS service by reading the information of the MBS control channel.
  • Relevant information where the relevant information of the MBS service is to distinguish the type of the MBS service.
  • the relevant information can be TMGI (Temporary Mobile Group Identity, temporary mobile group identity), and the UE can confirm whether the MBS service is its own through the relevant information. required business.
  • the channel information of the MBS control channel the specific position of the MBS service on the transmission channel is known.
  • the UE can stay at this position for a continuous period of time. Monitor the wireless network temporary identifier used for the MBS service channel, and if the corresponding wireless network temporary identifier is monitored, decode and receive the MBS service from the PDSCH.
  • the configuration of the system information block and the configuration of the MBS control channel may be a single-cell configuration or a multi-cell configuration in a specific area.
  • the configuration of the system information block is a single-cell configuration, that is, the system information block is valid only in this cell, and the configuration of the system information block is a multi-cell configuration in a specific area, that is, the system information block is valid in multiple cells in a specific area.
  • the specific area may be the area of multiple adjacent cells.
  • the configuration of the MBS control channel is a single-cell configuration.
  • the configuration of the MBS control channel may also be a multi-cell configuration in a specific area, for example, in the case that the MBS services received by multiple cells are the same. Or, multiple users in multiple cells need to receive the same MBS service. In this case, the multiple users can be grouped and sent to multiple users in multiple cells using the same MBS control channel configuration. The same is true for the wireless network temporary identifier used for the MBS service channel carried by the channel, and multiple users of multiple cells can jointly monitor the wireless network temporary identifier used for the MBS service channel to receive the MBS service.
  • the configuration of the MBS control channel can also be configured for multiple cells in a specific area. For example, by grouping multiple MBS services into a group, the configuration of one MBS control channel is used to send to multiple users in multiple cells in a specific area, wherein the MBS control channel carries the wireless network temporary identifier used for the MBS service channel Similarly, multiple users of multiple cells jointly monitor the wireless network temporary identifier used for the MBS service channel to receive the MBS service.
  • the configuration of the system information block is a multi-cell configuration in a specific area, and the configuration of the MBS control channel is a single-cell configuration.
  • the configuration of the system information block is a multi-cell configuration in a specific area
  • the configuration of the MBS control channel is a multi-cell configuration in a specific area
  • the configuration of the system information block is a single-cell configuration
  • the configuration of the MBS control channel is a single-cell configuration
  • the configuration of the system information block is a single-cell configuration, and the configuration of the MBS control channel is a multi-cell configuration in a specific area.
  • the UE receives the information of the MBS control channel through the system information block.
  • the MBS control channel is one, and the users of the cell where the UE is located all receive MBS services through the information of the MBS control channel, and the information of different MBS services, such as the temporary mobility group identifier that distinguishes the MBS service types. , are all configured by this one MBS control channel.
  • the MBS control channel has a fixed repetition period and a change period. As shown in FIG. 3 , when the UE misses receiving the MBS control channel information, it needs to wait for the next repetition period of the MBS control channel to receive again.
  • the UE For the received modification notification sent by the base station, it is also necessary to wait for the next modification cycle of the MBS control channel to use the updated configuration before continuing to receive the MBS service. This is unfavorable for the UE to receive the MBS service with strict requirements on the delay, because if the repetition period and the change period of the MBS control channel are relatively long, the UE needs to wait for a long time to receive the MBS service.
  • multiple different MBS services are configured through one MBS control channel. The UE may only need one of the MBS services, but the UE needs to decode and receive the information of the entire MBS control channel carrying the configuration of multiple MBS services to receive the MBS service. , which is also a waste of resources and power consumption for the UE.
  • the UE receives the information of the MBS control channel through the system information block, and there are multiple MBS control channels, that is, in a cell, multiple MBS control channels are allowed to be configured. Scheduling is performed by grouping different MBS services into different MBS control channels. For example, the MBS service with stricter delay requirements is scheduled in one of the MBS control channels, and the repetition period and change period of the MBS control channel are set to be shorter, so that the UE receives the MBS control channel in the next repetition period or in the next repetition period. When changing the period to receive the updated configuration, the MBS service can be received without waiting for a long time. Or schedule MBS services with the same requirements from multiple users in one of the MBS control channels.
  • the resource location of the MBS service channel configured in the MBS control channel and the wireless network temporary identifier used for the MBS service channel are the same and have the same Multiple users in need only need to decode and receive the MBS control channel, obtain the resource location of the corresponding MBS service channel and the wireless network temporary identifier used for the MBS service channel, and then monitor the corresponding resource location by monitoring the corresponding resource location.
  • the wireless network temporary identification can receive the required MBS service. Therefore, by configuring multiple MBS service channels in one cell, different MBS services can be scheduled and controlled according to actual requirements, which can save the resources and power consumption of the UE.
  • receiving the system information block of the broadcast control channel may further include: sending a configuration request of the system information block to the base station through the UE, and after receiving the configuration request, the base station sends the system information to the UE. piece.
  • the base station After the UE sends the configuration request of the system information block to the base station, after receiving the configuration request, the base station sends the configuration of the system information block through the broadcast control channel, and the system information block contains the configuration of the MBS service control channel, The UE can directly receive the MBS service according to the configuration of the system information block.
  • the base station may also send an acknowledgement message for the configuration request of the received system information block to the UE through the broadcast control channel to inform the UE that the system information block can be prepared. Configure reception.
  • the base station sends the configuration of the system information block through the broadcast control channel after receiving the configuration request, and the UE decodes and receives the configuration according to the configuration of the system information block.
  • the configuration of the MBS control channel is obtained by interpreting the MBS control channel to obtain the configuration of the MBS service control channel to receive the MBS service.
  • the base station may also send an acknowledgement message for the configuration request of the received system information block to the UE through the broadcast control channel to inform the UE that the system information block can be prepared. Configure reception.
  • the UE after the UE sends the configuration request of the system information block to the network side, it will continue to read the system information in the scheduling period of the next system information block (System information block, SIB), such as the scheduling period of SIB20 or SIBx. If the system information block is received in the next scheduling period, the UE sends a configuration request of the system information block to the network side again. If the UE continues to send the preset number of times in the UE system, the UE stops sending the configuration request of the system information block. The UE side considers that the MBS service cannot be received in this cell, and can only receive the MBS service through other means, such as cell handover. .
  • SIB System information block
  • the energy effect of the broadcast control channel for sending the broadcast can be improved, and the excessive signaling overhead in the case of multi-beam broadcast will not be caused. For example, there is currently no UE in the cell that needs to receive MBS services. If the energy effect of periodically broadcasting the system information of the system information block in the entire cell is very low, it will also cause waste of transmission resources.
  • the on-demand broadcasting method of broadcasting the system information block after receiving the configuration request of the system information block solves this situation well, improves the broadcast energy effect, and does not cause waste of transmission resources.
  • the transmission of the configuration is not limited to the scheduling of the system information block.
  • the scheduling period of the system information block is longer, and the scheduling period of the MBS control channel Shorter, the information of the MBS control channel has been obtained through the system information block, so there is no need to wait for the scheduling period of the next system information block to obtain the MBS service as in the one-step transmission scheme, but only need to be read in the scheduling period of the next MBS control channel.
  • the information of the MBS control channel, the resource location of the MBS service channel and the wireless network temporary identifier used for the MBS service channel are obtained to receive the MBS service. Therefore, when the scheduling time of the system information block is long, the two-step transmission scheme of the MBS configuration can shorten the transmission time for the UE to receive the MBS configuration.
  • FIG. 6 is a schematic structural diagram of an embodiment of the user equipment of the present application.
  • the present 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 instructions to implement the above-mentioned scheduling method for downlink control information.
  • 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. 7 is a schematic structural diagram of a user equipment 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 the method provided by any embodiment of the transmission method of the present application and any non-conflicting 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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  • Computer Networks & Wireless Communication (AREA)
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Abstract

La présente demande concerne un procédé de transmission. Le procédé de transmission est appliqué à un côté équipement utilisateur, et comprend : la réception d'un bloc d'informations système d'un canal de commande de diffusion, le bloc d'informations système comprenant un emplacement de ressource d'un canal de service MBS et un identifiant temporaire de réseau radio pour le canal de service MBS ; et la surveillance de l'identifiant temporaire de réseau radio pour le canal de service MBS au niveau de l'emplacement de ressource du canal de service MBS pour décoder un service MBS reçu. De cette manière, le temps de transmission de configuration dans un service MBS est réduit, de sorte que l'UE puisse recevoir le service MBS dans un temps plus court.
PCT/CN2020/140984 2020-12-29 2020-12-29 Procédé de transmission pour configuration mbs WO2022141084A1 (fr)

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PCT/CN2020/140984 WO2022141084A1 (fr) 2020-12-29 2020-12-29 Procédé de transmission pour configuration mbs
CN202080108295.8A CN116711393A (zh) 2020-12-29 2020-12-29 一种mbs配置的传输方法

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Citations (4)

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Publication number Priority date Publication date Assignee Title
US20070147326A1 (en) * 2005-12-15 2007-06-28 Interdigital Technology Corporation Qos-based multi-protocol uplink access
CN102196361A (zh) * 2010-03-05 2011-09-21 中兴通讯股份有限公司 Mbs协议数据单元的发送和接收方法、装置及系统
CN105992376A (zh) * 2015-02-13 2016-10-05 中兴通讯股份有限公司 一种实现业务调度的方法、系统、基站及用户设备
CN111935807A (zh) * 2020-08-10 2020-11-13 中兴通讯股份有限公司 一种控制信息的传输方法、设备和存储介质

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070147326A1 (en) * 2005-12-15 2007-06-28 Interdigital Technology Corporation Qos-based multi-protocol uplink access
CN102196361A (zh) * 2010-03-05 2011-09-21 中兴通讯股份有限公司 Mbs协议数据单元的发送和接收方法、装置及系统
CN105992376A (zh) * 2015-02-13 2016-10-05 中兴通讯股份有限公司 一种实现业务调度的方法、系统、基站及用户设备
CN111935807A (zh) * 2020-08-10 2020-11-13 中兴通讯股份有限公司 一种控制信息的传输方法、设备和存储介质

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