WO2022062855A1 - 多播业务的反馈方法及相关产品 - Google Patents

多播业务的反馈方法及相关产品 Download PDF

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Publication number
WO2022062855A1
WO2022062855A1 PCT/CN2021/115598 CN2021115598W WO2022062855A1 WO 2022062855 A1 WO2022062855 A1 WO 2022062855A1 CN 2021115598 W CN2021115598 W CN 2021115598W WO 2022062855 A1 WO2022062855 A1 WO 2022062855A1
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Prior art keywords
feedback
terminal
resource
resources
mapping relationship
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PCT/CN2021/115598
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English (en)
French (fr)
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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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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • 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
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/30—Services specially adapted for particular environments, situations or purposes
    • H04W4/40—Services specially adapted for particular environments, situations or purposes for vehicles, e.g. vehicle-to-pedestrians [V2P]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/80—Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication

Definitions

  • the present application relates to the technical field of communication processing, and in particular, to a feedback method for multicast services and related products.
  • Multicast is a point-to-multipoint communication method, and the feedback can include: ACK or NACK.
  • ACK Acknowledge character
  • NACK is a non-acknowledgement character.
  • a transmission-type control character sent by the receiving station to the sending station indicating that the sent data is acknowledged not to be received.
  • the existing feedback is generally aimed at the unicast service, and there is no clear solution for the feedback of the multicast service, so that the feedback of the multicast service cannot be confirmed, which affects the network performance.
  • the embodiments of the present application disclose a multicast service feedback method and related products, which implement multicast service feedback by configuring a multicast service feedback resource set list and preconfigured information, thereby improving network performance.
  • a first aspect provides a multicast service feedback method, the method is applied to a network device, and the method includes the following steps:
  • a list of feedback resource sets for the semi-static configuration of the multicast service by the network device includes: at least one feedback resource set;
  • the network device determines the set of feedback resources used from the list according to the number of feedback terminals required by the multicast service,
  • the network device receives the feedback message at the first resource, and determines the terminal corresponding to the feedback message according to the mapping relationship between the feedback resource set and the feedback terminal and the position of the first resource in the used feedback resource set;
  • the network device receives the feedback message on the second resource, and determines the beam corresponding to the feedback message according to the mapping relationship between the feedback resource and the beam.
  • a method for feeding back a multicast service is provided, the method is applied to a terminal, and the method includes the following steps:
  • the terminal acquires a list of feedback resource sets of the semi-statically configured multicast service, where the list of feedback resource sets includes: at least one feedback resource set;
  • the terminal determines the set of feedback resources used in the list, and the terminal determines the first resource corresponding to the terminal according to the preset mapping relationship between the set of used feedback resources and the feedback terminal; if the terminal needs feedback information, the terminal in the first resource Resource sending feedback information;
  • the terminal determines the mapping relationship between the feedback resources and the beams according to the pre-configuration. If the terminal does not receive the multicast service in the downlink beam, the terminal determines the second resource according to the downlink beam identifier and the mapping relationship between the feedback resources and the beams. The second resource sends a feedback message.
  • a network device comprising:
  • the feedback resource set list includes: at least one feedback resource set
  • a processing unit configured to determine the set of feedback resources used from the list according to the number of feedback terminals required by the multicast service
  • a communication unit configured to receive a feedback message at the first resource
  • the processing unit is further configured to determine the terminal corresponding to the feedback message according to the mapping relationship between the feedback resource set and the feedback terminal and the position of the first resource in the used feedback resource set;
  • the communication unit is further configured to receive the feedback message on the second resource
  • the processing unit is further configured to determine the beam corresponding to the feedback message according to the mapping relationship between the feedback resource and the beam.
  • a terminal comprising:
  • a communication unit configured to obtain a feedback resource set list of a semi-statically configured multicast service, where the feedback resource set list includes: at least one feedback resource set;
  • a processing unit configured to determine the set of feedback resources used in the list, and determine the first resource corresponding to the terminal according to the preset mapping relationship between the set of used feedback resources and the feedback terminal; if the terminal needs feedback information, control communication The unit sends feedback information on the first resource;
  • a processing unit configured to determine the mapping relationship between the feedback resources and the beams according to the pre-configuration, if the communication unit does not receive the multicast service in the downlink beam, determine the second according to the downlink beam identifier and the mapping relationship between the feedback resources and the beams. resource, and the terminal sends a feedback message on the second resource.
  • an electronic device comprising a processor, a memory, a communication interface, and one or more programs, the one or more programs being stored in the memory and configured to be executed by the processor , the program includes instructions for performing the steps in the method of the first aspect or the second aspect.
  • a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method of the first aspect or the second aspect.
  • a computer program product in a seventh aspect, includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute the first aspect of the embodiments of the present application. or some or all of the steps described in the second aspect.
  • the computer program product may be a software installation package.
  • a chip system in an eighth aspect, includes at least one processor, a memory and an interface circuit, the memory, the transceiver and the at least one processor are interconnected through a line, and the at least one memory stores There is a computer program; the computer program when executed by the processor implements the method of the first aspect or the second aspect.
  • the base station dynamically indicates the time domain feedback resource set, which can improve resource utilization.
  • the connected terminal determines the feedback resources according to the information indicated by the same multicast control information and the implicit mapping relationship. Different terminals can be evenly distributed on different time domain resources for feedback, which reduces the load and interference in the frequency domain;
  • the base station can obtain whether any terminal in the corresponding beam fails to receive the multicast service, and then decides whether to retransmit the multicast service in the corresponding beam, so as to avoid the resource overhead caused by the retransmission of all beams. cause waste of resources.
  • FIG. 1 is a system architecture diagram of an example communication system provided by the present application.
  • FIG. 2 is a schematic flowchart of a feedback method for a multicast service provided by the present application
  • FIG. 3 is a schematic flowchart of a method for feeding back a multicast service provided in Embodiment 1 of the present application;
  • FIG. 3 a is a schematic diagram of the mapping relationship between set 1 and UE identifier provided in Embodiment 1 of the present application;
  • FIG. 4 is a schematic flowchart of a feedback method for a multicast service provided in Embodiment 2 of the present application;
  • FIG. 5 is a schematic flowchart of a method for feeding back a multicast service provided in Embodiment 3 of the present application;
  • FIG. 6a is a schematic structural diagram of a network device provided by an embodiment of the present application.
  • FIG. 6b is a schematic structural diagram of a user equipment provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a terminal provided by an embodiment of the present application.
  • connection in the embodiments of the present application refers to various connection modes such as direct connection or indirect connection, so as to realize communication between devices, which is not limited in the embodiments of the present application.
  • the example communication system 100 may be, for example, a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system ) system, General Packet Radio Service (GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system, New Radio (New Radio, NR) ) system, evolution system of NR system, LTE system on unlicensed spectrum (LTE-based access to unlicensed spectrum, LTE-U), NR system on unlicensed spectrum (NR-based access to unlicensed spectrum, NR-U), Universal Mobile Telecommunication System (UMTS), next-generation communication system or other communication systems, etc.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • LTE-A Advanced Long Term Evolution
  • LTE-A
  • the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.
  • Carrier Aggregation, CA Carrier Aggregation, CA
  • DC Dual Connectivity
  • SA standalone
  • the terminal 110 in this embodiment of the present application may refer to a user equipment, an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device.
  • the terminal may also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a wireless communication function handheld devices, computing devices or other processing devices connected to wireless modems, relay devices, in-vehicle devices, wearable devices, terminals in future 5G networks or future evolution of public land mobile networks (PLMN)
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • PLMN public land mobile networks
  • the network device 120 in this embodiment of the present application may be a device for communicating with a terminal, and the network device may be an evolved base station (evoled NodeB, eNB or eNodeB) in an LTE system, or a cloud radio access network (cloud radio access network).
  • evoled NodeB evoled NodeB, eNB or eNodeB
  • cloud radio access network cloud radio access network
  • the network device can be a relay device, an access point, an in-vehicle device, a wearable device, and a network device in a future 5G network or a network in a future evolved PLMN network Equipment, one or a group (including multiple antenna panels) antenna panels of the base station in the 5G system, or, it can also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (baseband unit, BBU), or, distributed A unit (distributed unit, DU), etc., is not limited in this embodiment of the present application.
  • a baseband unit baseband unit
  • BBU baseband unit
  • DU distributed A unit
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU).
  • the CU implements some functions of the gNB, and the DU implements some functions of the gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implementing functions of the radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layers.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • the unicast service needs to perform HARQ ACK/NACK feedback.
  • the base station After receiving the NACK feedback, the base station will retransmit the UE. Before the UE enters the connected state, the base station will configure a public feedback resource pool, including the starting position of the resource time domain and the number of symbols occupied. When the UE successfully receives message 4, it will perform ACK feedback.
  • the base station indicates the feedback resources through DCI, the time domain indicates how many slots to feed back after receiving the data through K1, and the frequency domain indicates the frequency domain resources through the PUCCH resource index. resources for ACK feedback.
  • FIG. 2 provides a method for feeding back a multicast service.
  • the method is executed in the communication system shown in FIG. 1.
  • the network device in the embodiment shown in FIG. 2 takes a base station as an example, and includes the following steps :
  • Step S200 the base station semi-statically configures a list of feedback resource sets for the multicast service, where the list of feedback resource sets may include: at least one feedback resource set.
  • the above-mentioned at least one feedback resource set may specifically include: one feedback resource set or multiple feedback resource sets, and each feedback resource set may include: the total length of the resource duration in the time domain, and the feedback resource configuration in each time slot, Including the number of feedback resources, the time domain starting position and length of the feedback resources (PUCCH occasion, PUO);
  • the total duration of the resource duration in the time domain is: time slot level, feedback resource magnitude level or millisecond level duration;
  • the feedback resources are time-frequency domain resources required for terminal feedback.
  • Step S201 the terminal acquires a list of feedback resource sets for the semi-statically configured multicast service.
  • Step S202 the base station determines the used feedback resource set from the feedback resource set list according to the number of feedback terminals required by the multicast service.
  • Step S203 The terminal determines the feedback resource set used in the feedback resource set list, and determines the first resource corresponding to the terminal according to the preset mapping relationship between the used feedback resource set and the feedback terminal.
  • the set of feedback resources used for the determination in the above step S203 may specifically include: if the terminal is in a connected state, the terminal receives the semi-static configuration or DCI dynamic indication of the base station, and determines the feedback resources used in the list according to the semi-static configuration or DCI dynamic indication Collection index. If the terminal is in an idle state, the terminal may determine the set of feedback resources used in the list according to the system message.
  • Step S204 if a feedback message is required, the terminal sends the feedback information of the multicast service on the first resource.
  • Step S205 the base station receives the feedback information on the first resource, and the base station determines the terminal corresponding to the feedback message according to the mapping relationship between the feedback resource set and the feedback terminal and the position of the first resource in the used feedback resource set.
  • Step S206 the base station retransmits the multicast service to the terminal.
  • the technical solution provided by this application is a technical solution combining a base station and a terminal.
  • the above steps S200, S202, S205, and S206 can be used as separate solutions on the network device side, wherein step S206 can be An optional technical solution, in an optional solution, the above-mentioned steps S201, S203, and S204 may be used as separate solutions on the terminal side.
  • Step S203-1 the terminal determines the mapping relationship between feedback resources and beams according to the pre-configuration
  • Step S204-1 If the terminal does not receive the multicast service in the downlink beam, the terminal determines the second resource according to the downlink beam identifier and the mapping relationship between the feedback resource and the beam, and the terminal sends the feedback message on the second resource.
  • Step S205-1 The network device receives the feedback message on the second resource, and determines the beam corresponding to the feedback message according to the mapping relationship between the feedback resource and the beam.
  • Step S206-1 the network device retransmits the multicast service in the beam.
  • the base station dynamically indicates the time domain feedback resource set, which can improve resource utilization.
  • the connected terminal determines the feedback resources according to the information indicated by the same multicast control information and the implicit mapping relationship. Different terminals can be evenly distributed on different time domain resources for feedback, which reduces the load and interference in the frequency domain;
  • the base station can obtain whether any terminal in the corresponding beam fails to receive the multicast service, and then decides whether to retransmit the multicast service in the corresponding beam, so as to avoid the resource overhead caused by the retransmission of all beams. cause waste of resources.
  • the implementation method of the above step S202 may specifically include:
  • the base station uses the DCI (Downlink Control Information, downlink control information) dynamic indication or semi-static configuration of the feedback resource set index used according to the number of terminals that the multicast service needs to feed back.
  • DCI Downlink Control Information, downlink control information
  • the above-mentioned semi-static configuration may specifically be: RRC configuration.
  • the above method may further include between step S202 and step S203:
  • DCI or MAC CE media access control control element, multimedia access control element
  • the bitmap may specifically be: 11111111. If the second UE of the user equipment interested in the multicast service is not in the group, the bitmap may specifically be: 10111111.
  • the above method may also include:
  • the mapping of the mapping relationship is to perform indexing in the time domain and then the frequency domain according to the feedback resources in the feedback resource set, or perform the indexing in the frequency domain and then the time domain, and then perform the indexing of the feedback resource index and the terminal identifier to be fed back in ascending or descending order.
  • the technical solution realizes the determination of the feedback information of the multicast service of the terminal in the connected state, and improves the network performance.
  • the mapping of the above-mentioned mapping relationship is that the feedback resources in the feedback resource set are indexed first in the time domain and then in the frequency domain. Specifically, it can be as follows. If the number of UEs to be fed back is 6, for the convenience of description, the 6 UEs are respectively Named: UE1, UE2, UE3, UE4, UE5, UE6.
  • the corresponding feedback resource set is 3 slots, namely slot1, slot2, and slot3. Each slot has 2 PUOs.
  • the time domain and frequency domain indexes are first, and the way to perform one-to-one mapping in ascending order can be as follows: UE1 , UE2, and UE3 correspond to the first frequency domain feedback resources of slot1, slot2, and slot3, respectively, and determine the feedback resource indices PUO1, PUO2, and PUO3; UE4, UE5, and UE6 correspond to the second frequency domain feedback resources of slot1, slot2, and slot3, respectively. , and the feedback resource indices are determined to be PUO4, PUO5, and PUO6.
  • the time domain first and then the frequency domain can reduce the interference between UEs in the time domain.
  • mapping relationship is the frequency domain and then the time domain
  • mapping relationship is that UE1 and UE2 correspond to PUO1 and PUO2 respectively, UE3 and UE4 correspond to PUO3 and PUO4 respectively, and UE5 and UE6 correspond to PUO5 and PUO6 respectively.
  • the frequency domain first and then the time domain can reduce the interference between the UE frequency domains.
  • the above method may also include:
  • the network device preconfigures the mapping relationship between feedback resources and beams
  • the mapping of the mapping relationship is to perform indexing in the time domain and then the frequency domain according to the feedback resources, or perform the indexing in the frequency domain and then the time domain, and then perform one-to-one mapping between the feedback resource index and the beam identifier in an ascending or descending order. The remaining beam determines the resource index to be fed back.
  • This technical solution realizes the determination of the feedback information of the multicast service of the terminal in the idle state, and improves the network performance.
  • the beams and feedback resources in the above mapping relationship may be mapped to the beams and the feedback resources according to specific MBS services, or may be mapped to the MBS services and the feedback resources according to the beams.
  • the base station can determine which UEs on the SSBs have not received the corresponding MBS service, and then can retransmit the MBS on the corresponding beam for the UEs that have not received the corresponding MBS service.
  • the retransmission of the above MBS may not be retransmitted in the beams weeping manner to save resource overhead.
  • the first embodiment of the present application is implemented in the communication system as shown in FIG. 1 .
  • the technical scenarios implemented in this embodiment may specifically include: the number of terminals required to be fed back by the multicast service is 20, the state of the UE is the connected state, and the base station is in a half state.
  • Set 1 contains three consecutive slots, namely slot1, slot2, and slot3. , where each slot has 8 PUOs in the frequency domain, and the feedback resources in different slots and different frequency domains are indexed first in the time domain and then in the frequency domain as follows:
  • the first frequency domain feedback resource index of slot1 is PUO1, the first frequency domain feedback resource index of slot2 is PUO2, and the first frequency domain feedback resource index of slot3 is PUO3;
  • the index of the second frequency domain feedback resource of slot1 is PUO4, the index of the second frequency domain feedback resource of slot2 is PUO5, and the index of the second frequency domain feedback resource of slot3 is PUO6; and so on, it is determined that the remaining 14 PUOs are in 3
  • the frequency domain feedback resource index of the slot is PUO4
  • Both the base station and the UE preconfigure the mapping relationship between the set 1 and the UE identity (for example, UE ID).
  • the method is shown in Figure 3 and includes the following steps:
  • Step S300 the base station feeds back the set of resources used by the DCI indication according to the number of feedback terminals 20 needs to be set 1, and the set 1 includes 3 consecutive slots.
  • Step S301 UE2 searches and determines its own slot and PUO (specifically can be PUO2 of slot2) from 3 slots1 in set 1 according to its own UE ID and the mapping relationship between set 1 and UE ID;
  • the resource schematic diagram of the mapping relationship between the above set 1 and UE ID is shown in Figure 3a.
  • the mapping relationship shown in Figure 3a is that the time domain is first followed by the frequency domain, wherein the horizontal axis direction represents the time domain, and the vertical axis direction represents the frequency domain,
  • the UE ID is UE2
  • the specific slot and PUO can be determined as the first frequency domain feedback resource of slot2, that is, PUO2.
  • the UE ID is UE6, the specific slot and PUO can be determined. It can be the second frequency domain feedback resource of slot3, namely PUO6.
  • Step S302 UE2 sends a feedback message at PUO2 of slot2.
  • Step S303 the base station determines that the UE corresponding to the feedback message is UE2 according to the mapping relationship between set 1 and UE ID and the PUO2 of slot 2.
  • Step S304 the base station performs MBS service retransmission on UE2.
  • the base station dynamically indicates the time domain feedback resource set (set 1), which can improve the resource utilization rate, and the connected terminal determines the feedback according to the information indicated by the same multicast control information according to the implicit mapping relationship resources, different terminals can be evenly distributed on different time domain resources for feedback, which reduces the load and interference in the frequency domain and improves the network performance.
  • the second embodiment of the present application is implemented in the communication system as shown in FIG. 1 , and the technical scenarios implemented in this embodiment may specifically include: the number of terminals required to be fed back by the multicast service is 8, the state of the UE is the connected state, and the base station is in a half state.
  • the statically configured multicast service feedback resource set list can contain multiple feedback resource sets. It is assumed that the feedback resource set used by the multicast service is set 2, and this set 2 contains one continuous slot, namely slot 1. Each slot has 8 PUOs in the frequency domain, and both the base station and the UE pre-configure the mapping relationship between set 2 and the UE identity (such as UE ID, a temporary identity allocated by the base station to the UE).
  • the method is shown in Figure 4, including the following step:
  • Step S400 the base station feeds back the set 2 of the resources indicated by the DCI according to the number of terminals required to feed back 8, and the set 2 includes one slot.
  • step S401 the base station indicates whether the UE is in the group of the multicast service through the bitmap of the DCI (specifically: 10000011), which means that only UE0 and UE6 are in the group, and UE7 is still in the group, and UE7 is the third UE in the group. Then, the third feedback resource in the feedback resource set is used for feedback by UE7.
  • the bitmap of the DCI specifically: 10000011
  • the above bitmap can also be indicated by MAC CE.
  • Step S402 UE7 determines that it is in the group according to the value "1" of the bitmap, and searches and determines its own slot and PUO (specifically can be PUO3) from set 2 according to its own UE ID and the mapping relationship between set 2 and UE ID;
  • Step S403, UE7 sends a feedback message at PUO3.
  • Step S404 the base station determines that the UE corresponding to the feedback message is UE7 according to the mapping relationship between set 2 and UE ID and PUO3.
  • Step S405 the base station performs MBS service retransmission on UE7.
  • the base station dynamically indicates the time domain feedback resource set (set 2), and can determine whether the UE is in the group through the bitmap indication in the DCI, which can improve the resource utilization rate.
  • the feedback resources are determined according to the implicit mapping relationship, and different terminals can be evenly distributed in different time domain resources for feedback, which reduces the load and interference in the frequency domain and improves the network performance.
  • the third embodiment of the present application is implemented in the communication system as shown in FIG. 1 , and the technical scenarios implemented in this embodiment may specifically include: the number of terminals that need to be fed back by the multicast service is 4, the UE is in an idle state, and the base station is in an idle state. There are 2 MBS services between the UEs, namely MBS1 and MBS2.
  • the base station configures 4 beams, namely SSB0, SSB1, SSB2, and SSB3.
  • the base station and the UE all pre-configure the mapping relationship between beams and feedback resources.
  • the method is shown in Figure 5. shown, including the following steps:
  • Step S500 the base station sends MBS1 to the UE;
  • Step S501 if UE1 does not receive MBS1 in SSB0 (resident beam), it is determined that NACK needs to be fed back;
  • Step S502 UE1 determines the second resource at SSB0 according to the mapping relationship between the preconfigured beam and the feedback resource, and sends the feedback signal on the second resource.
  • Step S503 the base station receives the feedback signal on the second resource, and according to the beam SSB0 corresponding to the pre-configured second resource, the base station retransmits MBS1 on the SSB0.
  • the base station can obtain whether a terminal in the corresponding beam fails to receive the multicast service, and then decides whether it needs to be in the corresponding beam. Retransmission of multicast services is performed on corresponding beams to avoid excessive resource overhead caused by retransmission of all beams and waste of resources.
  • the user equipment includes corresponding hardware and/or software modules for executing each function.
  • the present application can be implemented in hardware or in the form of a combination of hardware and computer software in conjunction with the algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art may use different methods to implement the described functionality for each particular application in conjunction with the embodiments, but such implementations should not be considered beyond the scope of this application.
  • the electronic device can be divided into functional modules according to the above method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module.
  • the above-mentioned integrated modules can be implemented in the form of hardware. It should be noted that, the division of modules in this embodiment is schematic, and is only a logical function division, and there may be other division manners in actual implementation.
  • FIG. 6a shows a schematic diagram of an electronic device.
  • the electronic device may be a network device, and the network device may include: a configuration unit 601 and a processing unit 602 and communication unit 603.
  • the configuration unit 601 can be used to support the network device to perform the above-mentioned step 200, etc., and/or used for other processes of the techniques described herein.
  • the processing unit 602 and the communication unit 603 may be used to support the network device to perform the above-mentioned steps 202 , S205 and S206 , etc., and/or other processes for the techniques described herein.
  • FIG. 6b shows a schematic diagram of an electronic device.
  • the electronic device may be a user equipment, and the user equipment may include: a processing unit 606 and a communication unit 607 .
  • the processing unit 606 and the communication unit 607 may be configured to support the user equipment to perform the above-mentioned steps 201, S203, S204, etc., and/or other processes for the techniques described herein.
  • the user equipment or network equipment may further include a processing module, a storage module and a communication module.
  • the processing module may be used to control and manage the actions of the user equipment, for example, may be used to support the electronic equipment to perform the steps performed by the above-mentioned processor.
  • the storage module may be used to support the electronic device to execute stored program codes and data, and the like.
  • the communication module can be used to support the communication between the electronic device and other devices.
  • the processing module may be a processor or a controller. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure.
  • the processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of digital signal processing (DSP) and a microprocessor, and the like.
  • the storage module may be a memory.
  • the communication module may specifically be a device that interacts with other electronic devices, such as a radio frequency circuit, a Bluetooth chip, and a Wi-Fi chip.
  • the interface connection relationship between the modules illustrated in the embodiments of the present application is only a schematic illustration, and does not constitute a structural limitation of the user equipment.
  • the user equipment may also adopt different interface connection manners in the foregoing embodiments, or a combination of multiple interface connection manners.
  • FIG. 7 is a terminal 70 provided by an embodiment of the present application.
  • the terminal 70 includes a processor 701 , a memory 702 and a communication interface 703 , and the processor 701 , the memory 702 and the communication interface 703 communicate with each other through a bus 704 connect.
  • the memory 702 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM), or A portable read-only memory (compact disc read-only memory, CD-ROM), the memory 702 is used for related computer programs and data.
  • the communication interface 703 is used to receive and transmit data.
  • the processor 701 may be one or more central processing units (central processing units, CPUs). In the case where the processor 701 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.
  • the processor 701 may include one or more processing units, for example, the processing unit may include an application processor (application processor, AP), a modem processor, a graphics processor (graphics processing unit, GPU), an image signal processor ( image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (neural-network processing unit, NPU), etc. Wherein, different processing units may be independent components, or may be integrated in one or more processors.
  • the user equipment may also include one or more processing units.
  • the controller can generate an operation control signal according to the instruction operation code and the timing signal, and complete the control of fetching and executing instructions.
  • memory may also be provided in the processing unit for storing instructions and data.
  • the memory in the processing unit may be a cache memory. This memory can hold instructions or data that have just been used or recycled by the processing unit. If the processing unit needs to use the instruction or data again, it can be called directly from the memory. In this way, repeated access is avoided, and the waiting time of the processing unit is reduced, thereby improving the efficiency of the user equipment in processing data or executing instructions.
  • the processor 701 may include one or more interfaces.
  • the interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (pulse code modulation, PCM) interface, a universal asynchronous transceiver (universal) asynchronous receiver/transmitter, UART) interface, mobile industry processor interface (mobile industry processor interface, MIPI), general-purpose input/output (GPIO) interface, SIM card interface and/or USB interface, etc.
  • the USB interface is an interface that conforms to the USB standard specification, and can specifically be a Mini USB interface, a Micro USB interface, a USB Type C interface, and the like.
  • the USB interface can be used to connect a charger to charge the user equipment, and can also be used to transfer data between the user equipment and peripheral devices.
  • the USB port can also be used to connect headphones and play audio through the headphones.
  • the processor 701 in the terminal 70 is configured to read the computer program code stored in the memory 702, and perform the following operations:
  • the terminal sends the feedback information on the first resource.
  • the specific structure of the network device can also be shown in FIG. 7 , and the processor 701 is configured to read the computer program code stored in the memory 702, and perform the following operations:
  • a list of feedback resource sets for semi-statically configured multicast services includes: at least one feedback resource set;
  • the feedback message is received at the first resource, and the terminal corresponding to the feedback message is determined according to the mapping relationship between the feedback resource set and the feedback terminal and the position of the first resource in the used feedback resource set.
  • An embodiment of the present application further provides a chip system, the chip system includes at least one processor, a memory, and an interface circuit, the memory, the transceiver, and the at least one processor are interconnected by lines, and the at least one memory
  • a computer program is stored in the computer; when the computer program is executed by the processor, the method flow shown in FIG. 2 , FIG. 3 , FIG. 4 , and FIG. 5 is realized.
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium.
  • a computer program is stored in the computer-readable storage medium.
  • the embodiment of the present application further provides a computer program product, when the computer program product runs on the terminal, the method flow shown in FIG. 2 , FIG. 3 , FIG. 4 , and FIG. 5 is realized.
  • Embodiments of the present application further provide a terminal, including a processor, a memory, a communication interface, and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the processor , the program includes instructions for executing the steps in the methods of the embodiments shown in FIG. 2 , FIG. 3 , FIG. 4 , and FIG. 5 .
  • the electronic device includes corresponding hardware structures and/or software templates for executing each function.
  • the present application can be implemented in hardware or in the form of a combination of hardware and computer software, in combination with the units and algorithm steps of each example described in the embodiments provided herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • the electronic device may be divided into functional units according to the foregoing method examples.
  • each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing 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. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and other division methods may be used in actual implementation.
  • the disclosed apparatus may be implemented in other manners.
  • the device embodiments described above are only illustrative.
  • the division of the above-mentioned units is only a logical function division.
  • 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 or other forms.
  • the units described above as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • 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.
  • the above-mentioned integrated units if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer-readable memory.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art, or all or part of the technical solution, and the computer software product is stored in a memory.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • the aforementioned memory includes: U disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk and other media that can store program codes.

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Abstract

本申请实施例提供一种多播业务的反馈方法及相关产品，所述方法包括：网络设备半静态配置多播业务的反馈资源集合列表；所述反馈资源集合列表包括：至少一个反馈资源集合；网络设备依据所述多播业务需要反馈终端的数量从所述列表中确定所用的反馈资源集合，网络设备在第一资源接收反馈消息，依据反馈资源集合与反馈终端的映射关系以及该第一资源在所述所用的反馈资源集合位置确定该反馈消息对应的终端。本申请提供的技术方案具有提高网络性能的优点。

Description

多播业务的反馈方法及相关产品 技术领域
本申请涉及通信处理技术领域，尤其涉及一种多播业务的反馈方法及相关产品。
背景技术
多播(multicast)为一种点到多点的通信方式，反馈可以包括：ACK或NACK。ACK(Acknowledge character)即是确认字符，在数据通信中，接收站发给发送站的一种传输类控制字符，表示发来的数据已确认接收无误。NACK即是非确认字符，在数据通信中，接收站发给发送站的一种传输类控制字符，表示发来的数据确认未接收。
现有的反馈一般针对单播业务，对于多播业务的反馈还未有明确的方案，导致多播业务的反馈无法确认，影响了网络性能。
发明内容
本申请实施例公开了一种多播业务的反馈方法及相关产品，通过配置多播业务的反馈资源集合列表以及预配置信息来实现多播业务的反馈，进而提高网络性能。
第一方面，提供一种多播业务的反馈方法，所述方法应用于网络设备，所述方法包括如下步骤：
网络设备半静态配置多播业务的反馈资源集合列表；所述反馈资源集合列表包括：至少一个反馈资源集合；
网络设备依据所述多播业务需要反馈终端的数量从所述列表中确定所用的反馈资源集合，
网络设备在第一资源接收反馈消息，依据反馈资源集合与反馈终端的映射关系以及该第一资源在所述所用的反馈资源集合位置确定该反馈消息对应的终端；
网络设备在第二资源接收反馈消息，依据反馈资源与波束之间的映射关系确定该反馈消息对应的波束。
第二方面，提供一种多播业务的反馈方法，所述方法应用于终端，所述方法包括如下步骤：
终端获取半静态配置的多播业务的反馈资源集合列表，所述反馈资源集合列表包括：至少一个反馈资源集合；
终端确定所述列表中所用的反馈资源集合，终端依据预设的所用反馈资源集合与反馈终端之间的映射关系确定所述终端对应的第一资源；若终端需要反馈信息，终端在该第一资源发送反馈信息；
或终端依据预配置确定反馈资源与波束之间的映射关系，若终端未在下行波束接收到多播业务，终端依据下行波束标识以及反馈资源与波束之间的映射关系确定第二资源，终端在第二资源发送反馈消息。
第三方面，提供一种网络设备，所述网络设备包括：
配置单元，用于半静态配置多播业务的反馈资源集合列表；所述反馈资源集合列表包括：至少一个反馈资源集合；
处理单元，用于依据所述多播业务需要反馈终端的数量从所述列表中确定所用的反馈资源集合，
通信单元，用于在第一资源接收反馈消息；
所述处理单元，还用于依据反馈资源集合与反馈终端的映射关系以及该第一资源在所述所用的反馈资源集合位置确定该反馈消息对应的终端；
或通信单元，还用于在第二资源接收反馈消息，所述处理单元，还用于依据反馈资源与波束之间的映射关系确定该反馈消息对应的波束。
第四方面，提供一种终端，所述终端包括：
通信单元，用于获取半静态配置的多播业务的反馈资源集合列表，所述反馈资源集合列表包括：至少一个反馈资源集合；
处理单元，用于确定所述列表中所用的反馈资源集合，依据预设的所用反馈资源集合与反馈终端之间的映射关系确定所述终端对应的第一资源；若终端需要反馈信息，控制通信单元在该第一资源发送反馈信息；
或处理单元，用于依据预配置确定反馈资源与波束之间的映射关系，若通信单元未在下行波束接收到多播业务，依据下行波束标识以及反馈资源与波束之间的映射关系确定第二资源，终端在第二资源发送反馈消息。
第五方面，提供一种电子设备，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行第一方面或第二方面所述的方法中的步骤的指令。
第六方面，提供了一种计算机可读存储介质，存储用于电子数据交换的计算机程序，其中，所述计算机程序使得计算机执行第一方面或第二方面所述的方法。
第七方面，提供了一种计算机程序产品，其中，上述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，上述计算机程序可操作来使计算机执行如本申请实施例第一方面或第二方面中所描述的部分或全部步骤。该计算机程序产品可以为一个软件安装包。
第八方面，提供了芯片系统，所述芯片系统包括至少一个处理器，存储器和接口电路，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有计算机程序；所述计算机程序被所述处理器执行时实现第一方面或第二方面所述的方法。
通过本申请的技术方案，对连接态终端，基站动态指示时域反馈资源集合，能够提高资源利用率。连接态终端根据同一个组播控制信息指示的信息，根据隐含映射关系确定反馈资源，可以将不同的终端均匀分布在不同的时域资源上反馈，降低了频域上负载和干扰；对空闲态终端，通过隐含的资源映射关系，基站能够获得对应波束是否有终端接收多播业务失败，进而决定是否需要在对应波束进行多播业务重传，避免所有波束重传导致资源开销太大，造成资源浪费。
附图说明
以下对本申请实施例用到的附图进行介绍。
图1是本申请提供的一种示例通信系统的系统架构图；
图2是本申请提供的一种多播业务的反馈方法的流程示意图；
图3是本申请实施例一提供的一种多播业务的反馈方法的流程示意图；
图3a是本申请实施例一提供的集合1与UE标识的映射关系示意图；
图4是本申请实施例二提供的一种多播业务的反馈方法的流程示意图；
图5是本申请实施例三提供的一种多播业务的反馈方法的流程示意图；
图6a是本申请实施例提供的一种网络设备的结构示意图；
图6b是本申请实施例提供的一种用户设备的结构示意图；
图7是本申请实施例提供的一种终端的结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，表示前后关联对象是一种“或”的关系。
本申请实施例中出现的“多个”是指两个或两个以上。本申请实施例中出现的第一、第二等描述，仅作示意与区分描述对象之用，没有次序之分，也不表示本申请实施例中对设备个数的特别限定，不能构成对本申请实施例的任何限制。本申请实施例中出现的“连接”是指直接连接或者间接连接等各种连接方式，以实现设备间的通信，本申请实施例对此不做任何限定。
本申请实施例的技术方案可以应用于如图1所示的示例通信系统100，该示例通信系统100包括终端110和网络设备120，终端110与网络设备120通信连接。
该示例通信系统100例如可以是：全球移动通讯(Global System of Mobile communication，GSM)系统、码分多址(Code Division Multiple Access，CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access，WCDMA)系统、通用分组无线业务(General Packet Radio Service，GPRS)、长期演进(Long Term Evolution，LTE)系统、先进的长期演进(Advanced long term evolution，LTE-A)系统、新无线(New Radio，NR)系统、NR系统的演进系统、免授权频谱上的LTE系统(LTE-based access to unlicensed spectrum，LTE-U)、免授权频谱上的NR系统(NR-based access tounlicensed spectrum，NR-U)、通用移动通信系统(Universal Mobile  Telecommunication System，UMTS)、下一代通信系统或其他通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(Device to Device，D2D)通信，机器到机器(Machine to Machine，M2M)通信，机器类型通信(Machine Type Communication，MTC)，以及车辆间(Vehicle to Vehicle，V2V)通信等，本申请实施例也可以应用于这些通信系统。可选地，本申请实施例中的通信系统可以应用于载波聚合(Carrier Aggregation，CA)场景，也可以应用于双连接(Dual Connectivity，DC)场景，还可以应用于独立(Standalone，SA)布网场景。
本申请实施例中的终端110可以指用户设备、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。终端还可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、中继设备、车载设备、可穿戴设备，未来5G网络中的终端或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端等，本申请实施例对此并不限定。
本申请实施例中的网络设备120可以是用于与终端通信的设备，该网络设备可以是LTE系统中的演进型基站(evoled NodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，或者该网络设备可以为中继设备、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(baseband unit，BBU)，或，分布式单元(distributed unit，DU)等，本申请实施例并不限定。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能。比如，CU负责处理非实时协议和服务， 实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。
5G系统中，为了提高数据传输可靠性，单播业务需要进行HARQ ACK/NACK反馈，收到NACK反馈后，基站会对UE进行重传。在UE进入连接态之前基站会配置公共的反馈资源池，包括资源时域的起始位置，占用的symbol数量。当UE成功收到消息4后会进行ACK反馈，基站通过DCI指示反馈资源，时域通过K1指示收到数据后多少个slot进行反馈，频域通过PUCCH resource index指示频域的资源，UE根据确定的资源进行ACK反馈。
参阅图2，图2提供了一种多播业务的反馈方法，该方法在如图1所示的通信系统内执行，如图2所示的实施例的网络设备以基站为例，包括如下步骤：
步骤S200、基站半静态配置多播业务的反馈资源集合列表，该反馈资源集合列表可以包括：至少一个反馈资源集合。
上述至少一个反馈资源集合具体可以包括：1个反馈资源集合或多个反馈资源集合，每个反馈资源集合均可以包括：时域上资源持续的总长度，以及每个时隙上反馈资源配置，包含反馈资源的数量、反馈资源(PUCCH occasion，PUO)的时域起始位置和长度；
所述时域上资源持续的总长度为：时隙级、反馈资源数量级或毫秒级持续时长；
所述反馈资源为终端反馈需要的时频域资源。
步骤S201、终端获取半静态配置多播业务的反馈资源集合列表。
步骤S202、基站依据所述多播业务需要反馈终端的数量从该反馈资源集合列表中确定所用的反馈资源集合。
步骤S203、终端确定该反馈资源集合列表中所用的反馈资源集合，依据预设的所用反馈资源集合与反馈终端之间的映射关系确定终端对应的第一资源。
上述步骤S203的确定所用的反馈资源集合具体可以包括：若终端处于连接态，终端接收基站的半静态配置或DCI动态指示，并依据该半静态配置或 DCI动态指示确定该列表中所用的反馈资源集合索引。若终端处于空闲态，终端可以依据系统消息确定列表中所用的反馈资源集合。
步骤S204、若需要反馈消息，终端在该第一资源发送多播业务的反馈信息。
步骤S205、基站在该第一资源接收反馈信息，基站依据反馈资源集合与反馈终端的映射关系以及该第一资源在所用的反馈资源集合的位置确定该反馈消息对应的终端。
步骤S206、基站向该终端重发组播业务。
本申请提供的技术方案为基站与终端结合的技术方案，在一种可选的方案中，上述步骤S200、步骤S202、步骤S205、步骤S206可以作为网络设备侧的单独方案，其中步骤S206可以为可选的技术方案，在一种可选的方案中，上述步骤S201、步骤S203、步骤S204可以作为终端侧的单独的方案。
在一种可选的方案中，上述步骤S203到步骤S206可以采用下述步骤替换，
步骤S203-1、终端依据预配置确定反馈资源与波束之间的映射关系；
步骤S204-1、若终端未在下行波束接收到多播业务，终端依据下行波束标识以及反馈资源与波束之间的映射关系确定第二资源，终端在第二资源发送反馈消息。
步骤S205-1、网络设备在第二资源接收反馈消息，依据反馈资源与波束之间的映射关系确定该反馈消息对应的波束。
步骤S206-1、网络设备在该波束重发组播业务。
通过本申请的技术方案，对连接态终端，基站动态指示时域反馈资源集合，能够提高资源利用率。连接态终端根据同一个组播控制信息指示的信息，根据隐含映射关系确定反馈资源，可以将不同的终端均匀分布在不同的时域资源上反馈，降低了频域上负载和干扰；对空闲态终端，通过隐含的资源映射关系，基站能够获得对应波束是否有终端接收多播业务失败，进而决定是否需要在对应波束进行多播业务重传，避免所有波束重传导致资源开销太大，造成资源浪费。
在一种可选的方案中，上述步骤S202的实现方法具体可以包括：
若所述需要反馈终端处于连接态，基站依据所述多播业务需要反馈终端的 数量通过DCI(Downlink Control Information，下行控制信息)动态指示或半静态配置所用的反馈资源集合索引。
上述半静态配置具体可以为：RRC配置。
在一种可选的方案中，上述方法在步骤S202与步骤S203之间还可以包括：
若所述需要反馈终端处于连接态，通过DCI或MAC CE(media access control control element，多媒体接入控制单元)以bitmap指示对该组播业务感兴趣的用户设备是否在组内以确定需要反馈的终端标识以及数量。
例如，若需要反馈终端为8个UE，8个UE均在组内，那么bitmap具体可以为：11111111。若该组播业务感兴趣的用户设备的第2个UE不在组内，那么bitmap具体可以为：10111111。
在一种可选的方案中，上述方法还可以包括：
网络设备预配置所用的反馈资源集合与终端标识之间的映射关系；
所述映射关系的映射为根据反馈资源集合中的反馈资源先时域后频域进行索引或先频域后时域进行索引，再将反馈资源索引与需要反馈的终端标识按照升序或降序进行一一映射，根据终端标识确定要反馈的资源索引。
此技术方案实现了连接态的终端的组播业务的反馈信息的确定，提高了网络性能。
上述所述映射关系的映射为根据反馈资源集合中的反馈资源先时域后频域进行索引具体可以如下所示，若需要反馈的UE的数量为6个，为了方便说明，将6个UE分别命名为：UE1、UE2、UE3、UE4、UE5、UE6。其对应的反馈资源集合为3个slot，分别为slot1、slot2、slot3，每个slot具有2个PUO，那么先时域后频域索引，并且按升序进行一一映射的方式具体可以为：UE1、UE2、UE3分别对应slot1、slot2、slot3的第一个频域反馈资源，确定反馈资源索引PUO1，PUO2，PUO3；UE4、UE5、UE6分别对应slot1、slot2、slot3的第二个频域反馈资源，确定反馈资源索引为PUO4，PUO5，PUO6，先时域后频域可以减少UE时域之间的干扰。
又如，上述映射关系若是先频域后时域，那么其映射关系为，UE1、UE2分别对应PUO1、PUO2，UE3、UE4分别对应PUO3、PUO4，UE5、UE6分别对应PUO5、PUO6。先频域后时域可以减少UE频域之间的干扰。
在一种可选的方案中，上述方法还可以包括：
若终端处于空闲态，网络设备预配置所用的反馈资源与波束之间的映射关系；
所述映射关系的映射为根据反馈资源先时域后频域进行索引或先频域后时域进行索引，再将反馈资源索引与波束标识按照升序或降序进行一一映射，根据空闲态终端驻留的波束确定要反馈的资源索引。
此技术方案实现了空闲态的终端的组播业务的反馈信息的确定，提高了网络性能。
上述映射关系的波束与反馈资源可以按照特定MBS业务进行波束与反馈资源的映射，也可以按照波束进行MBS业务与反馈资源的映射。
基站根据在对应PUCCH资源上收到的反馈，能确定哪些SSB上有UE没有收到对应MBS业务，进而可以对未接收到对应的MBS业务的UE在对应beam上进行MBS的重传。上述MBS的重传可以不采用beams weeping方式重传，以节省资源开销。
实施例一
本申请实施例一在如图1所示的通信系统内实现，本实施例实现的技术场景具体可以包括：多播业务需要反馈终端的数量为20个，UE处于的状态为连接态，基站半静态配置多播业务反馈资源集合列表，该列表可以包含多个反馈资源集合，假设多播业务所用的反馈资源集合为集合1，该集合1包含连续的3个slot，分别为slot1、slot2、slot3，其中，每个slot在频域上有8个PUO，先时域再频域对不同slot不同频域上反馈资源进行索引如下：
Slot1的第一个频域反馈资源索引为PUO1，slot2的第一个频域反馈资源索引为PUO2，slot3的第一个频域反馈资源索引为PUO3；
Slot1的第二个频域反馈资源索引为PUO4，slot2的第二个频域反馈资源索引为PUO5，slot3的第二个频域反馈资源索引为PUO6；以此类推确定剩余14个PUO在3个slot的频域反馈资源索引。
基站以及UE均预配置集合1与UE标识(例如UE ID)的映射关系，该方法如图3所示，包括如下步骤：
步骤S300、基站依据需要反馈终端数量20通过DCI指示所用的资源反馈 集合为集合1，该集合1包含3个连续的slot。
步骤S301、UE2依据自身的UE ID以及集合1与UE ID的映射关系从集合1中的3个slot1中查找确定自身的slot以及PUO(具体可以为slot2的PUO2)；
上述集合1与UE ID的映射关系的资源示意图如图3a所示，如图3a所示的映射关系为先时域后频域，其中，横轴方向表示时域，竖轴方向表示频域，如图3a所示，若UE ID为UE2，则确定自身的slot以及PUO具体可以为，slot2的第一个频域反馈资源，即PUO2，若UE ID为UE6，则确定自身的slot以及PUO具体可以为slot3的第二个频域反馈资源，即PUO6。
步骤S302、UE2在slot2的PUO2发送反馈消息。
步骤S303、基站依据集合1与UE ID的映射关系以及slot2的PUO2确定该反馈消息对应的UE为UE2。
步骤S304、基站对UE2执行MBS业务重发。
通过本申请实施例一的技术方案，基站动态指示时域反馈资源集合(集合1)，能够提高资源利用率，连接态终端根据同一个组播控制信息指示的信息，根据隐含映射关系确定反馈资源，可以将不同的终端均匀分布在不同的时域资源上反馈，降低了频域上负载和干扰，提高了网络性能。
实施例二
本申请实施例二在如图1所示的通信系统内实现，本实施例实现的技术场景具体可以包括：多播业务需要反馈终端的数量为8个，UE处于的状态为连接态，基站半静态配置多播业务反馈资源集合列表，该列表可以包含多个反馈资源集合，假设多播业务所用的反馈资源集合为集合2，该集合2包含连续的1个slot，分别为slot1，其中，每个slot在频域上有8个PUO，基站以及UE均预配置集合2与UE标识(例如UE ID，基站给UE分配的一个临时标识)的映射关系，该方法如图4所示，包括如下步骤：
步骤S400、基站依据需要反馈终端数量8通过DCI指示所用的资源反馈集合为集合2，该集合2包含1个slot。
步骤S401、基站通过DCI的bitmap(具体可以为：10000011)指示UE是否处于组播业务的组内，则意味着只有UE0和UE6，UE7仍在组内，UE7 为组内的第3个UE，则反馈资源集合中的第3个反馈资源用于UE7进行反馈。
上述bitmap还可以通过MAC CE指示。
步骤S402、UE7依据bitmap的值“1”确定自身在组内，依据自身的UE ID以及集合2与UE ID的映射关系从集合2中查找确定自身的slot以及PUO(具体可以为PUO3)；
步骤S403、UE7在PUO3发送反馈消息。
步骤S404、基站依据集合2与UE ID的映射关系以及PUO3确定该反馈消息对应的UE为UE7。
步骤S405、基站对UE7执行MBS业务重传。
通过本申请实施例二的技术方案，基站动态指示时域反馈资源集合(集合2)，并且能够通过DCI内的bitmap指示确定UE是否在组内，能够提高资源利用率，连接态终端根据同一个组播控制信息指示的信息，根据隐含映射关系确定反馈资源，可以将不同的终端均匀分布在不同的时域资源上反馈，降低了频域上负载和干扰，提高了网络性能。
实施例三
本申请实施例三在如图1所示的通信系统内实现，本实施例实现的技术场景具体可以包括：多播业务需要反馈终端的数量为4个，UE处于的状态为空闲态，基站与UE之间具有2中MBS业务，分别为MBS1和MBS2，基站配置4个波束，分别为SSB0，SSB1，SSB2，SSB3，基站以及UE均预配置波束与反馈资源的映射关系，该方法如图5所示，包括如下步骤：
步骤S500、基站向UE发送MBS1；
步骤S501、若UE1未在SSB0(驻留波束)接收到MBS1，确定需要反馈NACK；
步骤S502、UE1在SSB0依据预配置波束与反馈资源的映射关系确定第二资源，在第二资源发送反馈信号。
步骤S503、基站在第二资源上接收到反馈信号，依据预配置第二资源对应的波束SSB0，基站在SSB0重传MBS1。
通过本申请实施例三的技术方案，对空闲态终端，通过隐含的资源映射关系(即预配置的映射关系)，基站能够获得对应波束是否有终端接收多播业务 失败，进而决定是否需要在对应波束进行多播业务重传，避免所有波束重传导致资源开销太大，造成资源浪费。
可以理解的是，用户设备为了实现上述功能，其包含了执行各个功能相应的硬件和/或软件模块。结合本文中所公开的实施例描述的各示例的算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以结合实施例对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本实施例可以根据上述方法示例对电子设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块可以采用硬件的形式实现。需要说明的是，本实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用对应各个功能划分各个功能模块的情况下，图6a示出了电子设备的示意图，如图6a所示，该电子设备可以为网络设备，该网络设备可以包括：配置单元601、处理单元602和通信单元603。
其中，配置单元601可以用于支持网络设备执行上述步骤200等，和/或用于本文所描述的技术的其他过程。
其中，处理单元602以及通信单元603可以用于支持网络设备执行上述步骤202、步骤S205以及步骤S206等，和/或用于本文所描述的技术的其他过程。
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在采用对应各个功能划分各个功能模块的情况下，图6b示出了电子设备的示意图，如图6b所示，该电子设备可以为用户设备，该用户设备可以包括：处理单元606和通信单元607。
其中，处理单元606和通信单元607可以用于支持用户设备执行上述步骤201、步骤S203以及步骤S204等，和/或用于本文所描述的技术的其他过程。
需要说明的是，上述方法实施例涉及的各步骤的所有相关内容均可以援引 到对应功能模块的功能描述，在此不再赘述。
在采用集成的单元的情况下，用户设备或网络设备还可以包括处理模块、存储模块和通信模块。其中，处理模块可以用于对用户设备的动作进行控制管理，例如，可以用于支持电子设备执行上述处理器执行的步骤。存储模块可以用于支持电子设备执行存储程序代码和数据等。通信模块，可以用于支持电子设备与其他设备的通信。
其中，处理模块可以是处理器或控制器。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框，模块和电路。处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，数字信号处理(digital signal processing，DSP)和微处理器的组合等等。存储模块可以是存储器。通信模块具体可以为射频电路、蓝牙芯片、Wi-Fi芯片等与其他电子设备交互的设备。
可以理解的是，本申请实施例示意的各模块间的接口连接关系，只是示意性说明，并不构成对用户设备的结构限定。在本申请另一些实施例中，用户设备也可以采用上述实施例中不同的接口连接方式，或多种接口连接方式的组合。
请参见图7，图7是本申请实施例提供的一种终端70，该终端70包括处理器701、存储器702和通信接口703，所述处理器701、存储器702和通信接口703通过总线704相互连接。
存储器702包括但不限于是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable read only memory，EPROM)、或便携式只读存储器(compact disc read-only memory，CD-ROM)，该存储器702用于相关计算机程序及数据。通信接口703用于接收和发送数据。
处理器701可以是一个或多个中央处理器(central processing unit，CPU)，在处理器701是一个CPU的情况下，该CPU可以是单核CPU，也可以是多核CPU。
处理器701可以包括一个或多个处理单元，例如：处理单元可以包括应用处理器(application processor，AP)，调制解调处理器，图形处理器(graphics  processing unit，GPU)，图像信号处理器(image signal processor，ISP)，控制器，视频编解码器，数字信号处理器(digital signal processor，DSP)，基带处理器，和/或神经网络处理器(neural-network processing unit，NPU)等。其中，不同的处理单元可以是独立的部件，也可以集成在一个或多个处理器中。在一些实施例中，用户设备也可以包括一个或多个处理单元。其中，控制器可以根据指令操作码和时序信号，产生操作控制信号，完成取指令和执行指令的控制。在其他一些实施例中，处理单元中还可以设置存储器，用于存储指令和数据。示例性地，处理单元中的存储器可以为高速缓冲存储器。该存储器可以保存处理单元刚用过或循环使用的指令或数据。如果处理单元需要再次使用该指令或数据，可从所述存储器中直接调用。这样就避免了重复存取，减少了处理单元的等待时间，因而提高了用户设备处理数据或执行指令的效率。
在一些实施例中，处理器701可以包括一个或多个接口。接口可以包括集成电路间(inter-integrated circuit，I2C)接口、集成电路间音频(inter-integrated circuit sound，I2S)接口、脉冲编码调制(pulse code modulation，PCM)接口、通用异步收发传输器(universal asynchronous receiver/transmitter，UART)接口、移动产业处理器接口(mobile industry processor interface，MIPI)、用输入输出(general-purpose input/output，GPIO)接口、SIM卡接口和/或USB接口等。其中，USB接口是符合USB标准规范的接口，具体可以是Mini USB接口、Micro USB接口、USB Type C接口等。USB接口可以用于连接充电器为用户设备充电，也可以用于用户设备与外围设备之间传输数据。该USB接口也可以用于连接耳机，通过耳机播放音频。
该终端70中的处理器701用于读取所述存储器702中存储的计算机程序代码，执行以下操作：
获取半静态配置的多播业务的反馈资源集合列表，所述反馈资源集合列表包括：至少一个反馈资源集合；
确定所述列表中所用的反馈资源集合，依据预设的所用反馈资源集合与反馈终端之间的映射关系确定所述终端对应的第一资源；
若需要反馈信息，终端在该第一资源发送反馈信息。
其中，上述方法实施例涉及的各场景的所有相关内容均可以援引到对应功 能模块的功能描述，在此不再赘述。
在一种可选的方案中，网络设备的具体结构也可以如图7所示，处理器701用于读取所述存储器702中存储的计算机程序代码，执行以下操作：
半静态配置多播业务的反馈资源集合列表；所述反馈资源集合列表包括：至少一个反馈资源集合；
依据所述多播业务需要反馈终端的数量从所述列表中确定所用的反馈资源集合，
在第一资源接收反馈消息，依据反馈资源集合与反馈终端的映射关系以及该第一资源在所述所用的反馈资源集合位置确定该反馈消息对应的终端。
本申请实施例还提供一种芯片系统，所述芯片系统包括至少一个处理器，存储器和接口电路，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有计算机程序；所述计算机程序被所述处理器执行时，图2、图3、图4、图5所示的方法流程得以实现。
本申请实施例还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序，当其在网络设备上运行时，图2、图3、图4、图5所示的方法流程得以实现。
本申请实施例还提供一种计算机程序产品，当所述计算机程序产品在终端上运行时，图2、图3、图4、图5所示的方法流程得以实现。
本申请实施例还提供一种终端，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行图2、图3、图4、图5所示实施例的方法中的步骤的指令。
上述主要从方法侧执行过程的角度对本申请实施例的方案进行了介绍。可以理解的是，电子设备为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模板。本领域技术人员应该很容易意识到，结合本文中所提供的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用使用不同方法来实现所描述的功能，但是这种实现不应认为超出 本申请的范围。
本申请实施例可以根据上述方法示例对电子设备进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。需要说明的是，本申请实施例中对单元的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
需要说明的是，对于前述的各方法实施例，为了简单描述，故将其都表述为一系列的动作组合，但是本领域技术人员应该知悉，本申请并不受所描述的动作顺序的限制，因为依据本申请，某些步骤可以采用其他顺序或者同时进行。其次，本领域技术人员也应该知悉，说明书中所描述的实施例均属于优选实施例，所涉及的动作和模板并不一定是本申请所必须的。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
在本申请所提供的几个实施例中，应该理解到，所揭露的装置，可通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如上述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性或其它的形式。
上述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
上述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售 或使用时，可以存储在一个计算机可读取存储器中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储器中，包括若干指令用以使得一台计算机设备(可为个人计算机、服务器或者网络设备等)执行本申请各个实施例上述方法的全部或部分步骤。而前述的存储器包括：U盘、只读存储器(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、移动硬盘、磁碟或者光盘等各种可以存储程序代码的介质。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步骤是可以通过程序来指令相关的硬件来完成，该程序可以存储于一计算机可读存储器中，存储器可以包括：闪存盘、只读存储器(英文：Read-Only Memory，简称：ROM)、随机存取器(英文：Random Access Memory，简称：RAM)、磁盘或光盘等。

Claims (20)

  1. 一种多播业务的反馈方法，其特征在于，所述方法应用于网络设备，所述方法包括如下步骤：
    网络设备半静态配置多播业务的反馈资源集合列表；所述反馈资源集合列表包括：至少一个反馈资源集合；
    网络设备依据所述多播业务需要反馈终端的数量从所述列表中确定所用的反馈资源集合，
    网络设备在第一资源接收反馈消息，依据反馈资源集合与反馈终端的映射关系以及该第一资源在所述所用的反馈资源集合位置确定该反馈消息对应的终端；或网络设备在第二资源接收反馈消息，依据反馈资源与波束之间的映射关系确定该反馈消息对应的波束。
  2. 根据权利要求1所述的方法，其特征在于，
    所述至少一个反馈资源集合中每个反馈资源集合均包括：时域上资源持续的总长度，以及每个时隙上反馈资源配置，包含反馈资源的数量、反馈资源的时域起始位置和长度；
    所述时域上资源持续的总长度为：时隙级、反馈资源数量级或毫秒级持续时长；
    所述反馈资源为终端反馈需要的时频域资源。
  3. 根据权利要求1或2所述的方法，其特征在于，所述网络设备依据所述多播业务需要反馈终端的数量从所述列表中确定所用的反馈资源集合具体包括：
    若所述需要反馈终端处于连接态，所述网络设备依据所述多播业务需要反馈终端的数量通过DCI动态指示或半静态配置所用的反馈资源集合索引。
  4. 根据权利要求3所述的方法，其特征在于，所述方法还包括：
    网络设备通过DCI或MAC CE以bitmap指示对该组播业务感兴趣的用户 设备是否在组内以确定需要反馈的终端标识及数量。
  5. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    网络设备预配置所用的反馈资源集合与终端标识之间的映射关系；
    所述映射关系的映射为根据反馈资源集合中的反馈资源先时域后频域进行索引或先频域后时域进行索引，再将反馈资源索引与需要反馈的终端标识按照升序或降序进行一一映射，根据终端标识确定要反馈的资源索引。
  6. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    网络设备预配置所用的反馈资源与波束之间的映射关系；
    所述映射关系的映射为先时域后频域进行索引或先频域后时域进行索引，再将反馈资源索引与波束标识按照升序或降序进行一一映射，根据空闲态终端驻留的波束确定要反馈的资源索引。
  7. 一种多播业务的反馈方法，其特征在于，所述方法应用于终端，所述方法包括如下步骤：
    终端获取半静态配置的多播业务的反馈资源集合列表，所述反馈资源集合列表包括：至少一个反馈资源集合；
    终端确定所述列表中所用的反馈资源集合，终端依据预设的所用反馈资源集合与反馈终端标识之间的映射关系确定所述终端对应的第一资源，若终端需要反馈信息，终端在该第一资源发送反馈信息；或终端依据预配置确定反馈资源与波束之间的映射关系，若终端未在下行波束接收到多播业务，终端依据下行波束标识以及反馈资源与波束之间的映射关系确定第二资源，终端在第二资源发送反馈消息。
  8. 根据权利要求7所述的方法，其特征在于，
    所述至少一个反馈资源集合中每个反馈资源集合均包括：时域上资源持续的总长度，以及每个时隙上反馈资源配置，包含反馈资源的数量、反馈资源时域的起始位置和长度；
    所述时域上资源持续的总长度为：时隙级、反馈资源数量级或毫秒级持续时长；
    所述反馈资源为终端反馈需要的时频域资源。
  9. 根据权利要求7所述的方法，其特征在于，所述终端确定所述列表中所用的反馈资源集合具体包括：
    若终端处于连接态，终端接收网络设备的半静态配置或DCI动态指示；终端依据所述半静态配置或DCI动态指示确定所述列表中所用的反馈资源集合索引。
  10. 根据权利要求9所述的方法，其特征在于，所述终端确定所述列表中所用的反馈资源集合索引，具体包括：
    所述终端根据所述列表中所用的反馈资源集合索引确定反馈资源索引；根据反馈资源集合中的反馈资源先时域后频域进行索引或先频域后时域进行索引。
  11. 根据权利要求7所述的方法，其特征在于，所述终端依据预设的所用反馈资源集合与反馈终端标识之间的映射关系确定所述终端对应的第一资源，具体包括：
    所述终端根据指示的需要反馈的终端标识及数量以及所述终端的标识按照升序或降序与反馈资源索引进行一一映射，根据所述终端标识确定反馈资源索引。
  12. 根据权利要求11所述的方法，其特征在于，所述终端根据指示的需要反馈的终端数量，具体包括：
    所述终端接收DCI或MAC CE中bitmap指示对该组播业务感兴趣的终端是否在组内以确定需要反馈的终端数量以及终端标识。
  13. 根据权利要求7所述的方法，其特征在于，
    所述所用的反馈资源集合与终端标识之间的映射关系的映射为根据反馈资源集合中的反馈资源先时域后频域进行索引或先频域后时域进行索引，再将反馈资源索引与需要反馈的终端标识按照升序或降序进行一一映射，根据终端标识确定要反馈的资源索引。
  14. 根据权利要求7所述的方法，其特征在于，所述反馈资源与波束之间的映射关系为先时域后频域进行索引或先频域后时域进行索引，再将反馈资源索引与波束标识按照升序或降序进行一一映射，所述终端依据驻留的波束确定要反馈的资源索引。
  15. 一种网络设备，其特征在于，所述网络设备包括：
    配置单元，用于半静态配置多播业务的反馈资源集合列表；所述反馈资源集合列表包括：至少一个反馈资源集合；
    处理单元，用于依据所述多播业务需要反馈终端的数量从所述列表中确定所用的反馈资源集合，
    通信单元，用于在第一资源接收反馈消息；
    所述处理单元，还用于依据反馈资源集合与反馈终端的映射关系以及该第一资源在所述所用的反馈资源集合位置确定该反馈消息对应的终端；
    或通信单元，还用于在第二资源接收反馈消息，所述处理单元，还用于依据反馈资源与波束之间的映射关系确定该反馈消息对应的波束。
  16. 一种终端，其特征在于，所述终端包括：
    通信单元，用于获取半静态配置的多播业务的反馈资源集合列表，所述反馈资源集合列表包括：至少一个反馈资源集合；
    处理单元，用于确定所述列表中所用的反馈资源集合，依据预设的所用反馈资源集合与反馈终端之间的映射关系确定所述终端对应的第一资源；若终端需要反馈信息，控制通信单元在该第一资源发送反馈信息；
    或处理单元，用于依据预配置确定反馈资源与波束之间的映射关系，若通信单元未在下行波束接收到多播业务，依据下行波束标识以及反馈资源与波束 之间的映射关系确定第二资源，终端在第二资源发送反馈消息。
  17. 一种电子设备，包括处理器、存储器、通信接口，以及一个或多个程序，所述一个或多个程序被存储在所述存储器中，并且被配置由所述处理器执行，所述程序包括用于执行如权利要求1-6任意一项或如权利要求7-14任意一项所述的方法中的步骤的指令。
  18. 一种芯片系统，所述芯片系统包括至少一个处理器，存储器和接口电路，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有计算机程序；所述计算机程序被所述处理器执行时实现如权利要求1-6任意一项或如权利要求7-14任意一项所述的方法。
  19. 一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机程序，当其在用户设备上运行时，执行权利要求1-6任意一项或如权利要求7-14任意一项所述的方法。
  20. 一种计算机程序产品，其特征在于，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行如权利要求1-6任意一项或如权利要求7-14任意一项所述的方法。
PCT/CN2021/115598 2020-09-28 2021-08-31 多播业务的反馈方法及相关产品 WO2022062855A1 (zh)

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