WO2022063327A1 - Procédé et appareil d'indication de ressources de service de multidiffusion, dispositif support, puce et module - Google Patents

Procédé et appareil d'indication de ressources de service de multidiffusion, dispositif support, puce et module Download PDF

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Publication number
WO2022063327A1
WO2022063327A1 PCT/CN2021/121478 CN2021121478W WO2022063327A1 WO 2022063327 A1 WO2022063327 A1 WO 2022063327A1 CN 2021121478 W CN2021121478 W CN 2021121478W WO 2022063327 A1 WO2022063327 A1 WO 2022063327A1
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WIPO (PCT)
Prior art keywords
bwp
mbs
terminal device
identifier
target
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PCT/CN2021/121478
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English (en)
Chinese (zh)
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高兴航
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北京紫光展锐通信技术有限公司
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Publication of WO2022063327A1 publication Critical patent/WO2022063327A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method, apparatus, device, medium, chip and module for indicating multicast service resources.
  • BWP carrier bandwidth
  • Embodiments of the present application provide a method, apparatus, device, medium, chip, and module for indicating multicast service resources, which can improve the transmission efficiency of multicast services.
  • the implementation of the present application discloses a multicast service resource indication method, which is applied to a network device.
  • the method includes:
  • the first terminal device Indicate the first target MBS BWP identifier in the first BWP set to the first terminal device, and send to the first terminal device a first indication message carrying the first target MBS BWP identifier, where the first message is used to indicate The first terminal device receives MBS data according to the BWP indicated by the first target MBS BWP identifier;
  • the implementation of the present application discloses yet another multicast service resource indication method, which is applied to a terminal device, and the method includes:
  • the receiving network device configures the MBS BWP set of the multicast broadcast service part of the carrier bandwidth as the first part of the carrier bandwidth BWP set;
  • a first indication message carrying the second target MBS BWP identifier is received, where the first indication message is used to instruct the terminal device to receive MBS data according to the BWP indicated by the second target MBS BWP identifier.
  • an embodiment of the present application discloses an apparatus for indicating multicast service resources.
  • the apparatus is deployed on a network device, and the apparatus includes:
  • a processing unit for configuring the MBS BWP set of the part of the carrier bandwidth of the multicast broadcast service as the first part of the carrier bandwidth BWP set;
  • a sending unit configured to indicate the first target MBS BWP identifier in the first BWP set to the first terminal device, and send to the first terminal device a first indication message carrying the first target MBS BWP identifier, the first target MBS BWP identifier A message is used to instruct the first terminal device to receive MBS data according to the BWP indicated by the first target MBS BWP identifier;
  • the processing unit is further configured to configure a second BWP set corresponding to the unicast partial carrier bandwidth BWP for the second terminal device interested in the MBS service;
  • the determining unit configured to determine a second target MBS BWP identifier according to the first BWP set and the second BWP set;
  • the sending unit is further configured to send, to the second terminal device, a first indication message carrying the second target MBS BWP identifier, where the first indication message is used to instruct the terminal device according to the second target
  • the BWP indicated by the MBS BWP flag receives MBS data.
  • an embodiment of the present application discloses another multicast service resource indication device, the device is deployed on a terminal device, and the device includes:
  • a receiving unit configured to receive the network equipment configuration multicast broadcast service part of the carrier bandwidth MBS BWP set as the first part of the carrier bandwidth BWP set;
  • the receiving unit is further configured to receive a first target MBS BWP identifier in the first BWP set, and receive a first indication message carrying the first target MBS BWP identifier, where the first message is used to indicate the first
  • the terminal device receives MBS data according to the BWP indicated by the first target MBS BWP identifier;
  • the receiving unit is further configured to receive a second BWP set corresponding to the unicast partial carrier bandwidth BWP configured for the second terminal device interested in the MBS service, and receive the first BWP set and the second BWP set determined according to the first BWP set and the second BWP set.
  • the receiving unit is further configured to receive a second indication message carrying the second target MBS BWP identifier, where the second indication message is used to instruct the terminal device according to the BWP indicated by the second target MBS BWP identifier Receive MBS data.
  • an embodiment of the present application discloses a network device, including a processor, a memory, and a user interface, wherein the processor, the memory, and the user interface are connected to each other, wherein the memory is used to store a computer program , the computer program includes program instructions, and the processor is configured to invoke the program instructions to execute the multicast service resource indication method described in the first aspect.
  • an embodiment of the present application discloses a terminal device, including a processor, a memory, and a user interface, wherein the processor, the memory, and the user interface are connected to each other, wherein the memory is used to store a computer program , the computer program includes program instructions, and the processor is configured to invoke the program instructions to execute the multicast service resource indication method described in the second aspect above.
  • an embodiment of the present application discloses a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program includes program instructions that, when executed by a processor, cause all The processor executes the multicast service resource indication method described in the first aspect.
  • an embodiment of the present application discloses a computer-readable storage medium, where the computer-readable storage medium stores a computer program, and the computer program includes program instructions that, when executed by a processor, cause all The processor executes the multicast service resource indication method described in the second aspect.
  • an embodiment of the present application discloses a chip, where the chip is configured to execute the multicast service resource indication method of the above-mentioned first aspect.
  • an embodiment of the present application discloses another chip, where the chip is configured to execute the multicast service resource indication method of the second aspect above.
  • an embodiment of the present application discloses a chip module, the chip module includes a transceiver component and a chip, and the chip module is configured to execute the multicast service resource indication method of the first aspect above.
  • the embodiment of the present application discloses another chip module, the chip module includes a transceiver component and a chip, and the chip module is configured to execute the multicast service resource indication method of the second aspect.
  • the network device configures the MBS BWP set as the first BWP set, indicates to the first terminal device the identifier of the first target MBS BWP in the first BWP set, and sends a message carrying the first target MBS BWP to the first terminal device
  • the first indication message of the identifier the first message is used to instruct the first terminal device to receive MBS data according to the BWP indicated by the first target MBS BWP identifier, thereby indicating that the terminal device in the disconnected or inactive state can also Receive the MBS service; further, the network device configures a second BWP set corresponding to the unicast partial carrier bandwidth BWP for the second terminal device that is interested in the MBS data, and determines the second target MBS BWP identifier according to the first BWP set and the second BWP set , and send a second indication message carrying the second target MBS BWP identifier to the second terminal device.
  • the second indication message is used to instruct the second terminal device to receive MBS data according to the BWP indicated by the second target MBS BWP identifier.
  • the network device uses The BWP corresponding to the overlapping identifier (second target MBS BWP identifier) can support the transmission of multicast services without corresponding conversion of the BWP, and at the same time, it also improves the transmission efficiency of multicast services
  • FIG. 1 is a schematic diagram of the architecture of a multicast service resource indication system disclosed in an embodiment of the present application
  • FIG. 2 is a schematic flowchart of a method for indicating multicast service resources disclosed in an embodiment of the present application
  • 3a is a schematic diagram of a multicast service resource division disclosed in an embodiment of the present application.
  • 3b is a schematic diagram of overlapping a multicast service and a unicast service disclosed in an embodiment of the present application;
  • FIG. 4 is a schematic diagram of the architecture of another multicast service resource indication system disclosed in an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a multicast service resource indication device disclosed in an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another multicast service resource indication device disclosed in an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a network device disclosed in an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a terminal device disclosed in an embodiment of the present application.
  • UE User Equipment
  • C-RNTI cell RNTI cell wireless network temporary identity
  • G-RNTI group RNTI group wireless network temporary identifier
  • PDCCH Physical downlink control channel physical downlink control channel
  • DCI Downlink Control Information downlink control information
  • MBS multicast/broadcast service multicast broadcast service
  • MCCH multicast control channel multicast control channel
  • MTCH multicast traffic channel multicast service channel
  • SC-PTM single cell-point to multipoint single cell point-to-multipoint transmission
  • MBSFN Multicast Broadcast Single Frequency Network Multicast Multicast Single Frequency Network
  • BWP bandwidth part part of the carrier bandwidth
  • MAC CE Multiple Access Channel control element MAC control unit
  • the multicast service transmission is implemented through the multicast multicast single frequency network (MBSFN) transmission mechanism.
  • MBSFN multicast multicast single frequency network
  • Multiple cells need to synchronously schedule the same service on the same time-frequency domain resources, because the time-frequency domain
  • the resources are reserved, even if there is not so much data scheduling, it cannot be used for other data transmission, so the MBSFN mechanism leads to a serious waste of resources.
  • SC-PTM single-cell point-to-multipoint transmission
  • All UEs interested in the broadcast multicast service in a cell can receive the dynamically scheduled broadcast multicast service according to the configuration information. Different cells can flexibly and dynamically schedule the broadcast multicast service without synchronization.
  • the Multicast Control Channel (MCCH) is used to carry the configuration information of broadcast multicast services
  • the Multicast Traffic Channel (MTCH) is used to carry the scheduling data of broadcast multicast services.
  • MCCH and MTCH are mapped to physical on the shared channel (DSCH).
  • RNTI Radio Network Temporary Identifiers
  • SC-RNTI Single Cell Radio Network Temporary Identifier
  • PDCCH Physical Control Channel
  • G-RNTI Group Radio Network Temporary
  • G-RNTI is used to scramble PDCCH and scheduled MTCH data
  • each broadcast multicast service is associated with a G-RNTI, and the UE can selectively receive different broadcast multicast services.
  • the SC-PTM broadcast multicast transmission mechanism shares the entire resource with the unicast service, and the base station is dynamically scheduled to support the transmission of the broadcast multicast service and the unicast service in the same slot.
  • Partial carrier bandwidth In the 5G system, terminals with different bandwidth reception capabilities are supported. In order to support terminals with different bandwidth capabilities, the 3GPP organization proposes the definition of fractional carrier bandwidth (BWP). Each BWP has the following Numerology characteristics: subcarrier spacing, CP type, frequency domain location, and bandwidth length. Meanwhile, in order to save the power consumption of the terminal, after the terminal device completes the RRC connection with the network device, the network device configures one or more BWPs for the terminal according to the bandwidth receiving capability and service requirements of the terminal device. These BWPs need to be limited within the UE's maximum receive bandwidth.
  • the terminal/network can adaptively adjust the BWP used according to the terminal's service requirements and load conditions, and can activate and deactivate the BWP through RRC signaling or scheduling DCI. If the BWP ID is changed in the scheduling DCI, the UE needs to perform BWP conversion, and The center frequency of the radio frequency is switched to the indicated new BWP, and data is sent and received on the new BWP according to the resource location indicated by the DCI.
  • Broadcast multicast Since release R17, NR broadcast multicast service is supported.
  • LTE can be regarded as only one BWP, but in NR, the base station will configure different BWPs for the UE, including the same or different BWP numbers, the same or different BWP locations , the same or different BWP subcarrier spacing, the same or different BWP bandwidth length, and only one BWP is active at each time.
  • FIG. 1 is a schematic diagram of the architecture of a multicast service resource indication system according to an embodiment of the present invention.
  • a system architecture 100 managed by the model includes a network device 101, a terminal device 102, and a terminal device
  • the number of 102 is not limited to one, the network device 101 and the terminal device 102 can be connected in communication, and the connection modes include wired connection and wireless connection.
  • the network device 101 is mainly used to configure the relevant information of the terminal device 102, and the configured information includes the first BWP identification set and the second BWP identification set; the terminal device 102 is mainly used for sending and receiving information, and sending request information to the network device 101 and receiving the indication information and MBS data sent by the network device 101 .
  • the network device 101 indicates to the terminal device 102 (the first terminal device) the first target MBS BWP identifier in the first BWP set according to the configuration MBS BWP set as the first BWP set, and sends a message carrying the first target MBS BWP identifier to the terminal device 102.
  • the first indication message is used to instruct the terminal device 102 to receive MBS data according to the BWP indicated by the first target MBS BWP identifier, so as to indicate that the terminal device in the disconnected state or inactive state can also receive the MBS service; Further, the network device 101 configures a second BWP set corresponding to the unicast partial carrier bandwidth BWP for the terminal device 102 (second terminal device) interested in the MBS data, and determines the second target MBS according to the first BWP set and the second BWP set BWP identifier, and send a second indication message carrying the second target MBS BWP identifier to the terminal device 102.
  • the second indication message is used to instruct the terminal device 102 to receive MBS data according to the BWP indicated by the second target MBS BWP identifier.
  • the network device uses The BWP corresponding to the overlapping identifier (the second target MBS BWP identifier) can support the transmission of the multicast service without corresponding conversion of the BWP, and at the same time, the transmission efficiency of the multicast service is also improved.
  • the network device 101 may be a base station, such as a NodeB, an evolved base station (eNB), and a next generation (next generation, NG) NodeB (gNB).
  • Terminal equipment 102 may be referred to as an access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, user equipment UE, wireless communication device, user agent or user equipment, Cellular phones, cordless phones, Session Initiation Protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (PDAs), 5G networks or future evolution networks Terminal equipment, etc., specifically a mobile phone (mobile phone), a tablet computer or a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (AR) terminal equipment, wireless in industrial control Terminal equipment, wireless terminal equipment in unmanned driving, wireless terminal equipment in telemedicine, wireless terminal equipment in smart grid, wireless terminal equipment in smart city, wireless terminal in smart home equipment, which is not limited in this application.
  • FIG. 2 is a method for indicating multicast service resources disclosed in an embodiment of the application.
  • the method mainly takes a network device as an execution subject, and performs related elaboration. Specifically, the method may include the following steps:
  • the network device configures the MBS BWP set as the first BWP set.
  • the network device (such as the base station) configures the MBS BWP set for the terminal device through a system message or a multicast control channel (MCCH), and each MBS BWP in the MBS BWP set has a corresponding MBS BWP identifier.
  • the terminal device here may include a terminal device in a connected state, and may also include a terminal device in a non-connected state or an inactive state, and the number of the terminal devices is not limited.
  • the MBS BWP collects one or more MBS BWPs, the number of MBS BWPs configured for each terminal device can be the same or different, the positions of the MBS BWPs can be the same or different, and the subcarrier spacing of the MBS BWPs can be the same or different Are not the same.
  • this embodiment of the present application names the MBS BWP set as the first BWP set.
  • the first set of BWPs may be indicated by means of system information.
  • the network device configures the first BWP set for the terminal device through a system message or a multicast control channel, it also needs to configure a corresponding control resource set CORESET for each BWP in the first BWP set. and a common search space CSS, so that the terminal device can monitor the physical downlink control channel (PDCCH) scheduled by the MBS according to CORESET and CSS.
  • PDCCH physical downlink control channel
  • both CORESET and CSS are used to determine the corresponding specific position of the MBS in the frequency domain.
  • the first BWP set further includes a parameter set numerology used by each BWP, and the numerology is used to indicate subcarrier spacing, CP type, frequency domain location, bandwidth length, and so on.
  • one or more BWPs in the first BWP set correspond to a parameter set numerology, and each BWP in the first BWP set is configured with a control resource set CORESET and a common search space CSS.
  • the network device indicates the first target MBS BWP identifier in the first BWP set to the first terminal device, and sends a first indication message carrying the first target MBS BWP identifier to the first terminal device, where the first message is used to indicate the first target MBS BWP identifier.
  • a terminal device receives MBS data according to the BWP indicated by the first target MBS BWP identifier.
  • the first terminal device is mainly used to exemplarily indicate that the terminal device is a terminal device in an idle state or an inactive state.
  • Step S202 is mainly for the network device to determine a BWP for the terminal device in the idle state or the inactive state to receive the MBS data, so as to indicate that the terminal device in the idle state or the inactive state can also receive the MBS data.
  • the network device indicates to the first terminal device the identifier of the first target MBS BWP in the first BWP set, which may be specifically: the network device selects the first BWP in the first BWP set or a preset
  • the Nth BWP indicates to the first terminal device that the first BWP in the first BWP set or the preset Nth BWP is the first target MBS BWP identifier. specific.
  • the network device configures a list of corresponding MBS BWP identifiers for each SCS in the SIB or MCCH, and each MBS BWP corresponds to an identifier (common index), in this case, the network device selects the first one in the list
  • the identification of the MBS BWP corresponding to the BWP is used as the first target MBS BWP identification (in most cases, it is the default, if the network device does not specify a BWP, this method is defaulted), or the network device selects the Nth BWP in the list corresponding to
  • the identification of the MBS BWP is used as the first target MBS BWP identification, where N is an integer greater than 1, which is mainly used to distinguish the difference from the first BWP.
  • the preset Nth BWP here can be specified according to the developer's requirements. It can be set according to the requirement, and the Nth BWP can also be determined according to a preset condition, and the preset condition can be the bandwidth corresponding to the BWP or the subcarrier spacing. Specifically, as shown in Figure 3a, in the protocol, a parameter of the parameter point A is defined, which points to the position where the starting RB of the CRB is 0. Therefore, all the positions in the subsequent BWP are obtained from the relative displacement of this position. come.
  • the network device After determining the first target MBS BWP identifier, the network device sends a first indication message carrying the first target MBS BWP identifier to the first terminal device, and the indication information is mainly used to indicate that the first terminal device can A BWP indicated by a target MBS BWP identifier receives MBS data.
  • the network device configures a second BWP set corresponding to the unicast partial carrier bandwidth BWP for the second terminal device interested in the MBS data, and determines the second target MBS BWP identifier according to the first BWP set and the second BWP set.
  • the second terminal device is mainly used to exemplarily indicate that the terminal device is a terminal device in a connection state with the network device, and similarly, the number of the second terminal device is multiple.
  • Step S203 is mainly to determine the second target MBS BWP identifier in the overlapping BWPs in the first BWP set and the second BWP set, so that the network device can send MBS data to the terminal device without performing BWP conversion.
  • the network device may further include receiving the data sent by the second terminal device.
  • the request information is mainly to indicate that the second terminal device is interested in MBS data, or when the second terminal device establishes a connection with the network, the second terminal device carries the request message through the RRC signaling message, so that the network device According to the request information, it is known that the second terminal device is interested in the MBS data, that is, the second terminal device wants to receive the MBS data sent by the network device.
  • the network device configures a second BWP set corresponding to the unicast partial carrier bandwidth BWP for the second terminal device interested in the MBS data. Specifically, the network device configures the first BWP according to the first BWP configured in step S202. Set, configure a second BWP set corresponding to the unicast partial carrier bandwidth BWP for the second terminal device, and each BWP in the second BWP set also has a corresponding BWP identifier.
  • the BWP frequency domain in the second BWP set includes the BWPs in the first BWP set, because, for a large-bandwidth terminal device, the frequency band of its unicast BWP is larger than the frequency band of the MBS BWP.
  • each BWP in the second BWP set is also configured with the corresponding CORESET and CSS, similarly, so that the second terminal device can monitor the PDCCH scheduled by the BMS according to the CORESET and the CSS.
  • one or more BWPs in the second BWP set correspond to one parameter set numerology.
  • one BWP in the second BWP set and one or more BWPs in the first BWP set overlap in the frequency domain.
  • the network device determines the second target MBS BWP identity according to the first BWP set and the second BWP set, specifically: the network device determines the overlapping first BWP identity set according to the first BWP set and the second BWP set, and obtains
  • the overlapping first BWP identification means that the BWP identification is the identification of the corresponding BWP in the first BWP set
  • the overlapping means that the MBS BWP in the first BWP set and the BWP in the second BWP set have overlapping parts in the frequency domain.
  • the identifier corresponding to MBS BWP1 can be used as a BWP identifier in the overlapping first BWP identifier set .
  • the network device selects one as the second target MBS BWP identification according to the overlapping first BWP identification set, which can be specifically: the network device selects the first BWP identification or the preset Mth from the overlapping first BWP identification set.
  • the first BWP identifier or the BWP identifier corresponding to the preset M-th BWP identifier is used as the second target MBS BWP identifier, wherein M is an integer greater than 1.
  • M is an integer greater than 1.
  • the network device sends a second indication message carrying the second target MBS BWP identifier to the second terminal device, where the second indication message is used to instruct the second terminal device to receive MBS data according to the BWP indicated by the second target MBS BWP identifier.
  • the network device after determining the second target MBS BWP identifier, the network device sends a second indication message carrying the second target MBS BWP identifier to the terminal device, where the second indication message is mainly used to indicate the second target MBS BWP identifier.
  • the terminal device may receive MBS data according to the BWP indicated by the second target MBS BWP identifier.
  • the second indication message may be a UE-specific RRC signaling indication message.
  • the network device after the network device sends the first indication message to the second terminal device, the network device synchronously obtains the second terminal device group that is to receive MBS data, and the second terminal device group may indicate that it can receive MBS data There is more than one second terminal device for data.
  • each second terminal device in the second terminal device group corresponds to the second target MBS BWP identifier carried by the second finger information, and then the network device is responsible for each second terminal device group in the second terminal device group.
  • the second target MBS BWP identifier corresponding to the terminal device is compared, and corresponding MBS data is sent according to different comparison results.
  • the network device sends the MBS data to the terminal devices of the second terminal device group according to the BWPs indicated by the second target MBSBWP identifiers, that is, to multiple terminals at the same time.
  • the second terminal device sends the MBS data, because its corresponding second target MBS BWP identifier is the same identifier, the network device can only send it once.
  • the network device is according to the numerology used by the corresponding BWP of each second target MBS BWP identification, in the BWP indicated by each second target MBS BWP identification. Send MBS data to the corresponding terminal equipment respectively.
  • no terminal device is interested in MBS data.
  • the network device can also configure the second set of BWPs, but does not need to send the MBS data to the terminal device on the corresponding BWP. .
  • the network device configures the MBS BWP set as the first BWP set, indicates the first target MBS BWP identifier in the first BWP set to the first terminal device, and sends the first target MBS BWP identifier to the first terminal device.
  • a first indication message where the first message is used to instruct the first terminal device to receive MBS data according to the BWP indicated by the first target MBS BWP identifier, and further, configure the unicast part corresponding to the second terminal device interested in the MBS data
  • the second BWP set of the carrier bandwidth BWP, the second target MBS BWP identifier is determined according to the first BWP set and the second BWP set, and a second indication message carrying the second target MBS BWP identifier is sent to the second terminal device.
  • the second indication The message is used to instruct the second terminal device to receive MBS data according to the BWP indicated by the second target MBS BWP identifier.
  • FIG. 4 is another method for indicating multicast service resources disclosed in the embodiment of the application.
  • the method is mainly described in the manner of interaction between a terminal device and a network device, and may specifically include the following steps:
  • the network device configures a first BWP set for the first terminal device and the second terminal device.
  • the network device configures the second BWP set for the second terminal device.
  • step S401 and step S402 The configuration sequence of step S401 and step S402 is not fixed, and the specific configuration process has been described in the embodiment corresponding to FIG. 2 , and will not be repeated here.
  • the first terminal device refers to a terminal device in an idle state or an inactive state
  • the second terminal refers to a terminal device that establishes a connection with a network device.
  • the first terminal device and the second terminal device can receive the unicast service in any state.
  • the configuration of the first BWP set and the configuration of the second BWP set may be pre-configured after receiving a request from the terminal device, or may not have received the request.
  • the network device sends the configured first BWP set to the first terminal device and the second terminal device, and sends the configured second BWP set to the second terminal device.
  • the network device sends the first target MBS BWP identifier in the first BWP set to the first terminal device, and sends the first indication message carrying the first target MBS BWP identifier to the first terminal device.
  • This step S404 exemplarily describes how to determine the first target MBS BWP identifier in the first BWP set, and how to send the MBS data to the first terminal device.
  • the operations of the network device and the terminal device are in one-to-one correspondence.
  • the network device sends the second target MBS BWP identifier determined according to the first BWP set and the second BWP set to the second terminal device.
  • This step S405 exemplarily describes how to determine the identification of the second target MBS BWP.
  • the network device sends a first indication message carrying the identifier of the second target MBS BWP to the second terminal device.
  • Step S406 exemplarily describes how the second terminal device receives the MBS data, which is mainly received according to the RRC signaling message.
  • the network device acquires the second terminal device group currently to receive MBS data, and compares the second target MBS BWP identifier corresponding to each terminal device in the second terminal device group.
  • the network device sends the MBS data to the terminal device of the second terminal device group according to the BWP indicated by the second target MBSBWP identifier.
  • the second terminal device receives the second indication information sent by the network device, and receives the MBS data according to the BWP indicated by the second target MBS BWP identifier indicated by the second indication information.
  • each second target MBS BWP identifier is not the same identifier
  • the network device according to the numerology used by the BWP corresponding to each second target MBS BWP identifier, on the BWP indicated by each second target MBS BWP identifier
  • the MBS data are respectively sent to the corresponding terminal devices.
  • the second terminal device also receives the second indication information according to the numerology used by the BWP corresponding to each second target MBSBWP identifier, and respectively receives MBS data on the BWP indicated by each second target MBSBWP identifier according to the second indication information. .
  • Steps S407 to S409 have been described in detail in the embodiment shown in FIG. 2 , and will not be repeated here.
  • the present application is mainly described according to the form of interaction between the terminal device and the network device: the network device configures the first BWP set and the second BWP set for the terminal device, and sends the first target MBS BWP identifier to the first terminal device according to the first target MBS BWP identifier.
  • the first terminal device receives the MBS data; further, the network device determines a second target MBS BWP set according to the first BWP set and the second BWP set, and sends the second target MBS BWP identifier to the second terminal device according to the second target MBS BWP identifier
  • the MBS data is received by the second terminal device, and at the same time, the MBS data sent by the network device to the second terminal device is determined in what manner by the second target MBS BWP.
  • the steps performed by the terminal device and the network device can be clearly seen, and it is clearly shown that the network device uses the BWP corresponding to the overlapping identifier (the second target MBS BWP identifier),
  • the transmission of the multicast service can be supported without corresponding conversion of the BWP, and the transmission efficiency of the multicast service is also improved.
  • FIG. 5 is a schematic structural diagram of a multicast service resource indication device disclosed in an embodiment of the present application.
  • the device 50 includes: a processing unit 501, a sending unit 502, and a determining unit 503, which are mainly used for:
  • Processing unit 501 for configuring the multicast broadcast service part carrier bandwidth MBS BWP set as the first part carrier bandwidth BWP set;
  • the sending unit 502 is configured to indicate to the first terminal device a first target MBS BWP identifier in the first BWP set, and send a first indication message carrying the first target MBS BWP identifier to the first terminal device, the The first message is used to instruct the first terminal device to receive MBS data according to the BWP indicated by the first target MBS BWP identifier;
  • the processing unit 501 is further configured to configure a second BWP set corresponding to the unicast partial carrier bandwidth BWP for the second terminal device interested in the MBS service;
  • a determining unit 503, configured to determine a second target MBS BWP identifier according to the first BWP set and the second BWP set;
  • the sending unit 502 is further configured to send a second indication message carrying the second target MBS BWP identifier to the second terminal device, where the second indication message is used to instruct the terminal
  • the BWP indicated by the target MBS BWP identity receives the MBS data.
  • the terminal device includes a first terminal device and a second terminal device
  • the processing unit 501 is further configured to:
  • the first BWP set for the terminal device Configure the first BWP set for the terminal device, and configure a control resource set CORESET and a common search space CSS corresponding to each BWP in the first BWP set, so that the terminal device monitors the physical properties of MBS scheduling.
  • a downlink control channel PDCCH the first BWP set of the terminal device includes a parameter set numerology used by the first BWP;
  • the second BWP set is configured for the second terminal device according to the first BWP set, and the BWP frequency domain within the second BWP set includes the BWPs within the first BWP set.
  • one or more BWPs in the first BWP set correspond to a parameter set numerology, and each BWP in the first BWP set is configured with a control resource set CORESET and a common search space CSS ;
  • One or more BWPs in the second BWP set correspond to a parameter set numerology, and each BWP in the second BWP set is configured with a control resource set CORESET and a common search space CSS.
  • one BWP in the second BWP set and one or more BWPs in the first BWP set overlap in the frequency domain.
  • the first terminal device is an idle state or an inactive state terminal device
  • the sending unit 502 is configured to indicate to the first terminal device the identifier of the first target MBS BWP in the first BWP set ,include:
  • the first BWP in the first BWP set or the preset Nth BWP is used as the first target MBS BWP identifier of the first terminal device, and the N is a positive integer greater than 1.
  • the determining unit 503, configured to determine the second target MBS BWP identifier according to the first BWP set and the second BWP set includes:
  • a first BWP identifier set that overlaps in the frequency domain is determined according to the first BWP set and the second BWP set, and a second target MBS BWP identifier is selected from the overlapping first BWP identifier set.
  • the processing unit 501 configured to select and obtain the second target MBS BWP identifier from the overlapping first BWP identifier set, includes:
  • the second indication message is a UE-specific radio resource control RRC signaling message, and/or the configuration of the first BWP set for the terminal device is indicated by means of system information.
  • the acquiring unit 504 (not indicated in the figure) is configured to acquire the second terminal device group currently to receive the MBS data;
  • the processing unit 501 is further configured to compare the second target MBS BWP identifier corresponding to each terminal device in the second terminal device group;
  • the sending unit 502 is further configured to send to the terminal equipment of the second terminal equipment group according to the BWP indicated by the second target MBSBWP identifier if the comparison result is that each of the second target MBS BWP identifiers is the same identifier. the MBS data.
  • the sending unit 502 is further configured to, if the comparison result is that the identifiers of the second target MBS BWPs are not the same identifier, according to the identifiers used by the BWPs corresponding to the identifiers of the second target MBS BWPs. numerology, respectively sending the MBS data to the corresponding terminal device on the BWP indicated by each second target MBS BWP identifier.
  • the processing unit 501 configures the MBS BWP set as the first BWP set
  • the sending unit 502 indicates the first target MBS BWP identifier in the first BWP set to the first terminal device, and sends a message carrying the first target to the first terminal device
  • the first indication message of the MBS BWP identifier the first message is used to instruct the first terminal device to receive the MBS data according to the BWP indicated by the first target MBS BWP identifier
  • the processing unit 501 is the second terminal interested in the MBS data
  • the device configuration corresponds to the second BWP set of the unicast partial carrier bandwidth BWP
  • the determining unit 503 determines the second target MBS BWP identifier according to the first BWP set and the second BWP set
  • the sending unit 502 sends a message carrying the second target to the second terminal device.
  • the second indication message of the MBS BWP identifier where the second indication message is used to instruct the second terminal device to receive MBS data according to the BWP indicated by the second target MBS BWP identifier.
  • FIG. 6 is a schematic structural diagram of another multicast service resource indication device provided by an embodiment of the present application.
  • the device 60 includes a receiving unit 601 and a processing unit 602, and is specifically used for:
  • a receiving unit 601 configured to receive a set of MBS BWPs of a partial carrier bandwidth of a multicast broadcast service configured by a network device as a set of BWPs of a first partial carrier bandwidth;
  • the receiving unit 601 is further configured to receive a first target MBS BWP identifier in the first BWP set, and receive a first indication message carrying the first target MBS BWP identifier, where the first message is used to indicate the first target MBS BWP identifier.
  • a terminal device receives MBS data according to the BWP indicated by the first target MBS BWP identifier;
  • the receiving unit 601 is further configured to receive a second BWP set corresponding to the unicast partial carrier bandwidth BWP configured for the second terminal device interested in the MBS service, and receive a set of BWPs determined according to the first BWP set and the second BWP set.
  • the receiving unit 601 is further configured to receive a first indication message carrying the second target MBS BWP identifier, where the first indication message is used to instruct the terminal device according to the indication of the second target MBS BWP identifier.
  • BWP receives MBS data.
  • the receiving unit 601 is further configured to receive the configured first BWP set, and receive a control resource set CORESET corresponding to each BWP in the configured first BWP set respectively and public search space CSS;
  • a processing unit 602 configured to monitor the physical downlink control channel PDCCH scheduled by the MBS according to the CORESET and the CSS, and the first BWP set includes a parameter set numerology used by the first BWP;
  • the receiving unit 601 is further configured to receive the second BWP set configured according to the first BWP set, where the BWP frequency domain in the second BWP set includes the BWPs in the first BWP set.
  • the receiving unit 601 configured to receive the first target MBS BWP identifier in the first BWP set, includes:
  • the first BWP or the preset Nth BWP in the first BWP set is received as the first target MBS BWP identifier, and the N is a positive integer greater than 1.
  • the receiving unit 601 is further configured to receive a second indication message corresponding to each terminal device in the second terminal device group by the network device, according to the second indication
  • the BWP indicated by the second target MBS BWP identifier indicated by the message receives the MBS data.
  • the receiving unit 601 receives the network device configuration MBS BWP set as the first BWP set; receives the first target MBS BWP identifier in the first BWP set, and receives the first indication message carrying the first target MBS BWP identifier, the first A message is used to instruct the first terminal device to receive MBS data according to the BWP indicated by the first target MBS BWP identifier; to receive the second terminal device interested in the MBS service to configure a second BWP corresponding to the unicast partial carrier bandwidth BWP set, and receive the second target MBS BWP identifier determined according to the first BWP set and the second BWP set; receive a second indication message carrying the second target MBS BWP identifier, and the second indication message is used to instruct the terminal device according to the second target MBS BWP identifier
  • the BWP indicated by the BWP identifier receives MBS data.
  • the terminal device receives the configuration of the network device, and
  • FIG. 7 is a schematic structural diagram of a network device separated by an embodiment of the present application.
  • the network device includes a processor 710, a memory 720, a communication interface 730, and a user interface 740.
  • the processor 710, the memory 720, the communication Interface 730 and user interface 740 are connected by one or more communication buses.
  • the processor 710 is configured to support the network device to perform functions corresponding to the methods in FIGS. 2 and 4 .
  • the processor 710 may be a central processing unit (CPU), a network processor (NP), a hardware chip or any combination thereof.
  • the memory 720 is used to store program codes and the like.
  • the memory 720 may include volatile memory (volatile memory), such as random access memory (RAM); the memory 720 may also include non-volatile memory (non-volatile memory), such as read-only memory (read- only memory, ROM), flash memory (flash memory), hard disk drive (HDD) or solid-state drive (solid-state drive, SSD); the memory 720 may also include a combination of the above-mentioned types of memory.
  • the communication interface 730 is used to send and receive data, information or messages, etc., and can also be described as a transceiver, a transceiver circuit, and the like.
  • the communication interface 730 may include a standard wired interface, a wireless interface (such as WI-FI, a mobile communication interface, etc.), and may be used to send and receive data under the control of the processor 710 .
  • the processor 710 may call program codes stored in the memory 720 to perform the following operations:
  • the first terminal device Indicate the first target MBS BWP identifier in the first BWP set to the first terminal device, and send to the first terminal device a first indication message carrying the first target MBS BWP identifier, where the first message is used to indicate The first terminal device receives MBS data according to the BWP indicated by the first target MBS BWP identifier;
  • a second BWP set corresponding to the unicast partial carrier bandwidth BWP for a second terminal device interested in the MBS service, and determine a second target MBS BWP identifier according to the first BWP set and the second BWP set;
  • the terminal device includes a first terminal device and a second terminal device
  • the processor 710 is further configured to:
  • the first BWP set for the terminal device Configure the first BWP set for the terminal device, and configure a control resource set CORESET and a common search space CSS corresponding to each BWP in the first BWP set, so that the terminal device monitors the physical properties of MBS scheduling.
  • a downlink control channel PDCCH the first BWP set of the terminal device includes a parameter set numerology used by the first BWP;
  • the second BWP set is configured for the second terminal device according to the first BWP set, and the BWP frequency domain within the second BWP set includes the BWPs within the first BWP set.
  • one or more BWPs in the first BWP set correspond to a parameter set numerology, and each BWP in the first BWP set is configured with a control resource set CORESET and a common search space CSS ;
  • One or more BWPs in the second BWP set correspond to a parameter set numerology, and each BWP in the second BWP set is configured with a control resource set CORESET and a common search space CSS.
  • one BWP in the second BWP set and one or more BWPs in the first BWP set overlap in the frequency domain.
  • the first terminal device is an idle state or an inactive state terminal device
  • the processor 710 is configured to indicate to the first terminal device the identifier of the first target MBS BWP in the first BWP set ,include:
  • the first BWP in the first BWP set or the preset Nth BWP is used as the first target MBS BWP identifier of the first terminal device, and the N is a positive integer greater than 1.
  • the processor 710 configured to determine the second target MBS BWP identifier according to the first BWP set and the second BWP set, includes:
  • a first BWP identifier set that overlaps in the frequency domain is determined according to the first BWP set and the second BWP set, and a second target MBS BWP identifier is selected from the overlapping first BWP identifier set.
  • the processor 710 is configured to select and obtain the second target MBS BWP identifier from the overlapping first BWP identifier set, including:
  • the second indication message is a UE-specific radio resource control RRC signaling message, and/or the configuration of the first BWP set for the terminal device is indicated by means of system information.
  • the processor 710 is further configured to:
  • the MBS data is sent to the terminal devices of the second terminal device group according to the BWPs indicated by the second target MBSBWP identifiers.
  • the processor 710 is further configured to:
  • each of the second target MBS BWP identifiers is not the same identifier, according to the number used by the BWP corresponding to each second target MBS BWP identifier, on the BWP indicated by each second target MBS BWP identifier, to the corresponding BWP
  • the terminal devices respectively send the MBS data.
  • the processor 710 configures the MBS BWP set as the first BWP set, indicates the first target MBS BWP identifier in the first BWP set to the first terminal device, and sends a message carrying the first target MBS BWP identifier to the first terminal device
  • the first indication message the first message is used to instruct the first terminal device to receive MBS data according to the BWP indicated by the first target MBS BWP identifier
  • the second terminal device interested in the MBS data corresponding to unicast data A second BWP set of part of the carrier bandwidth BWP, determining a second target MBS BWP identity according to the first BWP set and the second BWP set, and sending a second indication message carrying the second target MBS BWP identity to the second terminal device, the second indication
  • the message is used to instruct the second terminal device to receive MBS data according to the BWP indicated by the second target MBS BWP identifier.
  • FIG. 8 is a schematic structural diagram of a network device separated by an embodiment of the present application.
  • the network device includes a processor 810, a memory 820, a communication interface 830, and a user interface 840.
  • the processor 810, memory 820, communication interface 840 The interface 830 and the user interface 840 are connected by one or more communication buses.
  • the processor 810 is configured to support the network device to perform functions corresponding to the methods in FIGS. 2 and 4 .
  • the processor 810 may be a central processing unit (CPU), a network processor (NP), a hardware chip or any combination thereof.
  • the memory 820 is used to store program codes and the like.
  • the memory 820 may include volatile memory (volatile memory), such as random access memory (RAM); the memory 820 may also include non-volatile memory (non-volatile memory), such as read-only memory (read- only memory, ROM), flash memory (flash memory), hard disk drive (HDD) or solid-state drive (solid-state drive, SSD); the memory 820 may also include a combination of the above-mentioned types of memory.
  • the communication interface 830 is used for sending and receiving data, information or messages, etc., and can also be described as a transceiver, a transceiver circuit, and the like.
  • the communication interface 830 may include a standard wired interface, a wireless interface (such as WI-FI, a mobile communication interface, etc.), and may be used to send and receive data under the control of the processor 810 .
  • the communication interface 830 may call program codes stored in the memory 820 to perform the following operations:
  • the receiving network device configures the MBS BWP set of the multicast broadcast service part of the carrier bandwidth as the first part of the carrier bandwidth BWP set;
  • a first indication message carrying the second target MBS BWP identifier is received, where the first indication message is used to instruct the terminal device to receive MBS data according to the BWP indicated by the second target MBS BWP identifier.
  • the communication interface 830 is further configured to receive the configured first BWP set, and receive the control resource set CORESET corresponding to each BWP in the configured first BWP set respectively and public search space CSS;
  • a processor 810 configured to monitor the physical downlink control channel PDCCH scheduled by the MBS according to the CORESET and the CSS, and the first BWP set includes a parameter set numerology used by the first BWP;
  • the communication interface 830 is further configured to receive the second BWP set configured according to the first BWP set, where the BWP frequency domain in the second BWP set includes the BWPs in the first BWP set.
  • the communication interface 830 configured to receive the first target MBS BWP identifier in the first BWP set, includes:
  • the first BWP or the preset Nth BWP in the first BWP set is received as the first target MBS BWP identifier, and the N is a positive integer greater than 1.
  • the communication interface 830 is further configured to receive a second indication message corresponding to each terminal device in the second terminal device group by the network device, according to the second indication
  • the BWP indicated by the second target MBS BWP identifier indicated by the message receives the MBS data.
  • the communication interface 830 receives the network device configuration MBS BWP set as the first BWP set; receives the first target MBS BWP identifier in the first BWP set, and receives the first indication message carrying the first target MBS BWP identifier , the first message is used to instruct the first terminal device to receive MBS data according to the BWP indicated by the first target MBS BWP identifier; the second terminal device that is interested in receiving the MBS service configures the first terminal device corresponding to the unicast partial carrier bandwidth BWP Two sets of BWPs, and receive a second target MBS BWP identity determined according to the first BWP set and the second BWP set; receive a second indication message carrying the identity of the second target MBS BWP, and the second indication message is used to instruct the terminal The BWP indicated by the target MBS BWP identity receives the MBS data.
  • the terminal device receives the configuration of the network device, and receives MBS data on the BWP set.
  • the embodiment of the present application discloses a chip, which is mainly used for executing the multicast service resource indication method in the embodiment corresponding to FIG. 2 and performing the relevant steps associated with the network device in the embodiment corresponding to FIG.
  • the chip may be provided in a network device.
  • the embodiment of the present application discloses a chip module, including a transceiver component and a chip, and the chip is used to mainly execute the multicast service resource indication method in the embodiment corresponding to FIG. Relevant steps associated with the device.
  • the chip module can be arranged in a network device.
  • An embodiment of the present application discloses a chip, and the chip is mainly used to execute the relevant steps associated with the first terminal device and the second terminal device in the embodiment corresponding to FIG. 4 .
  • the chip may be provided in the first terminal device and the second terminal device
  • An embodiment of the present application discloses a chip module, including a transceiver component and a chip, and the chip is mainly used to execute the relevant steps associated with the first terminal device and the second terminal device in the embodiment corresponding to FIG. 4 .
  • the chip module may be provided in the first terminal device and the second terminal device
  • the modules in the processing device in the embodiment of the present invention may be combined, divided, and deleted according to actual needs.
  • a computer program product includes one or more computer instructions.
  • the computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • Computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server, or data center over a wire (e.g.
  • coaxial cable, optical fiber, digital subscriber line) or wireless means to another website site, computer, server or data center.
  • a computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media.
  • Useful media may be magnetic media (eg, floppy disks, storage disks, magnetic tapes), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk (SSD)), among others.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

L'invention porte sur un procédé et sur un appareil d'indication de ressources de service de multidiffusion, sur un dispositif, sur un support, sur une puce et sur un module. Le procédé consiste : à configurer un ensemble de parties BWP de service MBS en tant que premier ensemble de parties BWP ; à envoyer à un premier dispositif terminal un premier message d'instruction comportant un premier identifiant de partie BWP de service MBS cible, le premier message étant utilisé pour ordonner au premier dispositif terminal de recevoir des données de service MBS selon une partie BWP indiquée par le premier identifiant de partie BWP de service MBS cible ; à configurer, pour un second dispositif terminal digne d'intérêt pour les données de service MBS, un second ensemble de parties BWP correspondant à des parties BWP de monodiffusion et à déterminer un second identifiant de partie BWP de service MBS cible en fonction du premier ensemble de parties BWP et du second ensemble de parties BWP ; et à envoyer au second dispositif terminal un second message d'instruction comportant le second identifiant de partie BWP de service MBS cible, le second message d'instruction étant utilisé pour ordonner au second dispositif terminal de recevoir les données de service MBS selon une partie BWP indiquée par le second identifiant de partie BWP de service MBS cible. La présente invention peut améliorer l'efficacité de réception d'un service de multidiffusion par un dispositif terminal.
PCT/CN2021/121478 2020-09-28 2021-09-28 Procédé et appareil d'indication de ressources de service de multidiffusion, dispositif support, puce et module WO2022063327A1 (fr)

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