WO2019206075A1

WO2019206075A1 - Multicast transmission method and communication device

Info

Publication number: WO2019206075A1
Application number: PCT/CN2019/083669
Authority: WO
Inventors: 李秉肇; 王学龙; 高永强; 于映辉
Original assignee: 华为技术有限公司
Priority date: 2018-04-25
Filing date: 2019-04-22
Publication date: 2019-10-31
Also published as: CN110401922B; CN110401922A

Abstract

Disclosed is a multicast transmission method applied to a network device in the field of multicast transmission. In the multicast transmission method, a network device determines reporting configuration information, wherein the reporting configuration information is used for indicating a mapping relationship between a service identifier of a multicast service currently being transmitted, a beam identifier available for the multicast service, and a reporting resource, and the reporting resource is used for reporting a multicast service that a terminal device expects to use, and a corresponding beam identifier; and the network device sends the reporting configuration information. The network device comprises, but is not limited to, a base station, a server, a wearable device, a vehicle-mounted device, etc. In the embodiments of the present application, a network device can determine to send a downlink beam according to determined reporting configuration information, thereby sending a multicast service without broadcasting, sending the multicast service pertinently, and improving the transmission efficiency of the multicast service.

Description

Multicast transmission method and communication device

The present application claims priority to Chinese Patent Application No. 201810381010.2, entitled "A Multicast Transmission Method and Communication Device", filed on April 25, 2018, the entire contents of which are incorporated herein by reference. In the application.

Technical field

The present application relates to the field of communications technologies, and in particular, to a multicast transmission method and a communication device.

Background technique

The first multicast technology introduced in the Long Term Evolution (LTE) system is the evolved Multimedia Broadcast Multicast Service (eMBMS) technology. In the eMBMS technology, all cells in an area are required to simultaneously transmit the same content. If the user equipment (User Equipment, UE) is only distributed in some cells, the eMBMs technology transmission efficiency is relatively low.

Single Cell-Point To Multipoint (SC-PTM) is a multicast transmission technology. The SC-PTM technology is different from the eMBMs technology in that a cell simultaneously schedules service data to multiple UEs through a Group-Radio Network Temporary Identity (G-RNTI), and each G-RNTI can associate with one multimedia. Broadcast Broadcast Multicast Service (MBMS) service. In an area, only the cell containing the user needs to send data, and the cell that does not include the user does not need to send data, thereby saving air interface resources. Currently, SC-PTM technology does not support carrier aggregation (CA) transmission.

The SC-PTM technology transmits multicast services on a Physical Downlink Share Channel (PDSCH). Different from the PDSCH carrying unicast data, the PDSCH carrying the multicast data is called a multicast PDSCH. In the SC-PTM transmission process, the base station sends downlink control information (Downlink Control Information (DCI), which is carried by the physical downlink control channel (PDCCH) to a group of UEs in a cell, and then the group of UEs according to the downlink control information (DCI) The scheduling information included in the DCI receives the multicast PDSCH.

In the prior art, the fifth-generation mobile communication (5th-generation, 5G) system uses a beam-based transmission technology, and the UE needs to transmit beams in different directions in order to cover UEs in different areas. For example, the transmission of system information needs to be sent once in each beam direction of the coverage cell. Similarly, if multicast transmission is performed in a 5G cell, it is also necessary to repeatedly transmit the multicast channel on each beam. Since different UEs have different requirements for multicast services, and the same service data is repeatedly transmitted on each beam according to the prior art, resource waste is caused, and multicast transmission efficiency is reduced.

Summary of the invention

The embodiment of the present application provides a multicast transmission method and a communication device, which are used to improve multicast transmission efficiency.

To solve the above technical problem, the embodiment of the present application provides the following technical solutions:

In a first aspect, the embodiment of the present application provides a multicast transmission method, including: determining, by a network device, report configuration information, where the report configuration information is used to indicate a service identifier of the multicast service being transmitted, and the multicast service The mapping between the beam identifier and the reported resource, the reporting resource is used to report the multicast service that the terminal device desires to use and the corresponding beam identifier; and the network device sends the reported configuration information.

In the embodiment of the present application, after the network device determines that the configuration information is reported, the device sends the report configuration information to the terminal device, and the terminal device uses the report resource corresponding to the beam identifier to report the report to the network device, so that the reported resource used by the network device is used. It is possible to determine the multicast service that the terminal device desires to receive and the corresponding beam identification. Through the mapping relationship between the reporting resources used by the terminal device and the beam and the multicast service, the network device can determine which of the beams have which terminal devices are expected to receive the multicast service, and the network device can determine to send the downlink beam according to the determined result information. Therefore, the transmission of the multicast service does not need to adopt the broadcast mode, so that the transmission of the multicast service is targeted, and the transmission efficiency of the multicast service is improved.

In a possible design of the first aspect, the method further includes: the network device sending service control information, where the service control information includes: a service identifier of the multicast service. The network device can send service control information in addition to the report configuration information. The sending of the configuration information and the sending of the service control information may be sent in the same piece of information, or may be separately sent by using two separate pieces of information, and the service control information sent by the network device may include the service of the multicast service being transmitted. The terminal device that identifies the user control information can determine which multicast services are being transmitted, and the terminal device can determine which multicast service or destinations to receive.

In a possible design of the first aspect, the service control information further includes: configuration information of a service transmission resource of the multicast service, where the service transmission resource includes at least one of the following resources: the multicast service Corresponding wireless network temporary identifier RNTI, time information corresponding to the multicast service, and physical control channel resources corresponding to the multicast service. The service transmission resource is a transmission resource used by the network device to send the multicast service. The terminal device can determine the transmission resource used by the network device to send the multicast service by using the configuration information of the service transmission resource, and the terminal device uses the service transmission. The resource can receive the multicast service sent by the network device. The terminal device may use any of the foregoing resources as a service transmission resource.

In a possible design of the first aspect, after the network device sends the report configuration information, the method further includes: the network device detecting the reported resource, and determining, according to the detection result, that the terminal device desires to receive Multicast service and beam identification that the terminal device can use. The mapping configuration information sent by the network device to the terminal device indicates the mapping relationship between the following three types: the service identifier of the multicast service being transmitted, the beam identifier that can be used by the multicast service, and the reported resource. The terminal device uses the reporting resource to report, and the network device can also detect the reported resource and report the reported resource through the network device. Through the mapping relationship, the network device can determine the multicast service that the terminal device desires to receive and the terminal device. The beam identification used. Through the mapping relationship between the reporting resources used by the terminal device and the beam and the multicast service, the network device can determine which of the beams have which terminal devices are expected to receive the multicast service, and the network device can determine to send the downlink beam according to the determined result information.

In a possible design of the first aspect, after determining, according to the detection result, the multicast service that the terminal device desires to receive and the beam identifier that the terminal device can use, the method further includes: the network device is The multicast device corresponding to the beam identifier that can be used by the terminal device schedules the multicast service that the terminal device desires to receive. After the network device determines the multicast service and the beam identifier that the terminal device is expected to receive by detecting the reporting resource, the network device schedules the multicast service that the terminal device expects to receive on the beam corresponding to the beam identifier that can be used by the terminal device, and therefore the present application In the embodiment, the network device sends the multicast service for the terminal device that is expected to receive the multicast service, and does not need to broadcast for all the terminal devices, thereby improving the transmission efficiency of the multicast service.

In a possible design of the first aspect, when the reporting configuration information is used to indicate a mapping relationship between a service identifier, a beam set, and a reporting resource of the multicast service, the reporting resource includes: the terminal device-specific And the network device detects the reported resource, and the network device detects, on the dedicated uplink resource, a measurement result reported by the terminal device for at least one beam in the beam set. When the mapping relationship between the service identifier, the beam set, and the reported resource is indicated in the report configuration information determined by the network device, the terminal device measures the beam in the beam set, and generates a measurement result of the at least one beam, and the terminal device determines whether The multicast service is expected to be received on the at least one beam. When the terminal device desires to receive a certain multicast service, the terminal device may report the use of the dedicated uplink resource allocated by the network device. Therefore, in a scenario in which the network device allocates the dedicated uplink resource, the network device detects, on the dedicated uplink resource, the measurement result reported by the terminal device for the at least one beam in the beam set, so that the network device can determine the beam used by the terminal device. .

In a possible design of the first aspect, the reporting configuration information further includes: a preamble and a time-frequency resource reported by the terminal device; and the network device detecting the reported resource, including: the network device Detecting, on the time-frequency resource, the preamble sent by the terminal device. The network device may indicate, to the terminal device, a preamble that can be used and a time-frequency resource corresponding to the preamble. The terminal device determines the available preamble and time-frequency resources by using the report configuration information. The terminal device may send the preamble to the network device on the time-frequency resource corresponding to the beam identifier. The reporting of the configuration information includes reporting the used preamble and the corresponding time-frequency resource, and the terminal device uses the time-frequency resource to send the preamble, indicating that the terminal device is expected to receive the multicast service on the beam corresponding to the beam identifier.

In a possible design of the first aspect, the reporting configuration information further includes: the first period periodically used by the terminal device to report. The reporting configuration information that is determined by the network device further includes the reporting period information, where the reporting period is the first period, the terminal device may perform periodic reporting according to the first period, so that the network device may receive the terminal device according to the first period. Reporting using escalated resources.

In a possible design of the first aspect, the sending, by the network device, the reporting configuration information, the network device receiving a multicast service request message sent by the terminal device, where the network device is requested according to the multicast service The message sends the report configuration information to the terminal device. The terminal device may first send a multicast service request message to the network device, and the network device may receive the multicast service request message sent by the terminal device, so that the network device determines which terminal device requests the multicast service, and the network device may The device replies and reports the configuration information.

In a possible design of the first aspect, the sending, by the network device, the reporting configuration information, the network device separately sending the reporting configuration information by using beams in different directions. The reporting device can send the configuration information in the beam in different directions, and the terminal devices in the coverage of the beam in different directions are all sent by the network device in the different directions. You can receive the report configuration information of the network device configuration.

In a possible design of the first aspect, the sending, by the network device, the reporting configuration information, the network device sending, by the network device, a system broadcast message for indicating the reporting configuration information; or The broadcast service control channel sends the report configuration information. Specifically, the network device may send a system broadcast message, and the system broadcasts a message to indicate the report configuration information, or the network device carries the report configuration information in the multicast service control channel. In this implementation scenario, the terminal device may obtain the foregoing report configuration information. For example, the terminal device may obtain the report configuration information from the system broadcast message, or read the report configuration information from the multicast service control channel. Further, before the terminal device reads the multicast service control channel, the method further includes: sending a request to the network device, requesting the network device to send the report configuration information.

In a second aspect, the embodiment of the present application further provides a multicast transmission method, including: acquiring, by a terminal device, report configuration information sent by a network device, where the report configuration information is used to indicate a service identifier of a multicast service being transmitted, The mapping between the beam identifier and the reporting resource that can be used by the multicast service, where the reporting resource is used to report the multicast service that the terminal device desires to use and the corresponding beam identifier; when the terminal device determines that it is desired to receive the When the multicast service is used, the terminal device reports the report to the network device by using the report resource corresponding to the beam identifier.

In a possible design of the second aspect, the method further includes: the terminal device acquiring service control information sent by the network device, where the service control information includes: a service identifier of a multicast service being transmitted. The terminal device can receive the service control information in addition to receiving the report configuration information. If the configuration information is sent and the service control information is sent in the same piece of information, the terminal device can receive the service control information and report the configuration information through a piece of information. If the reporting configuration information and the service control information are separately sent by using two separate pieces of information, the terminal device may separately receive the service control information sent by the network device and report the configuration information. The service control information received by the terminal device may include the service identifier of the multicast service being transmitted, so that the terminal device may determine which multicast services are being transmitted, and the terminal device may determine which multicast service or services are expected to be received.

In a possible design of the second aspect, the service control information further includes: configuration information of a service transmission resource of the multicast service, where the service transmission resource includes at least one of the following resources: the multicast service Corresponding wireless network temporary identifier RNTI, time information corresponding to the multicast service, and physical control channel corresponding to the multicast service; the method further includes: the terminal device receiving the network device by using the service transmission resource The multicast service sent. The service transmission resource is a transmission resource used by the network device to send the multicast service. The terminal device can determine the transmission resource used by the network device to send the multicast service by using the configuration information of the service transmission resource, and the terminal device uses the service transmission. The resource can receive the multicast service sent by the network device.

In a possible design of the second aspect, the method further includes: when the reporting configuration information is used to indicate a mapping relationship between a service identifier, a beam set, and a reporting resource of the multicast service, the terminal device pair The beams in the set of beams are measured and a measurement of at least one beam is generated; the terminal device determines whether it is desired to receive the multicast service on the at least one beam. The terminal device measures the beam in the beam set and generates a measurement result of the at least one beam, where the terminal device determines whether the mapping relationship between the service identifier, the beam set, and the reported resource is in the report configuration information determined by the terminal device. It is desirable to receive multicast traffic on at least one beam, for example, the terminal device determines that the beam whose measurement result is greater than the measurement threshold is a beam used by the terminal device.

In a possible design of the second aspect, the reporting resource includes: an uplink resource dedicated to the terminal device; and the terminal device reports the network device by using the reporting resource corresponding to the beam identifier, including: The terminal device sends, to the network device, report information indicating a measurement result of the at least one beam, by using the uplink resource dedicated to the terminal device. When the terminal device is expected to receive a certain multicast service, the terminal device may use the dedicated uplink resource allocated by the network device to report. Therefore, in a scenario in which the network device allocates a dedicated uplink resource, the terminal device reports a measurement result for at least one beam in the beam set, so that the network device can determine the beam used by the terminal device. For example, the network device determines that the beam whose measurement result is greater than the measurement threshold is the beam used by the terminal device.

In a possible design of the second aspect, the reporting configuration information includes: a preamble and a time-frequency resource, and the terminal device reports the network device by using the reporting resource corresponding to the beam identifier, including: The terminal device sends the preamble to the network device on a time-frequency resource corresponding to the beam identifier. The network device may indicate, to the terminal device, a preamble that can be used and a time-frequency resource corresponding to the preamble. The terminal device determines the available preamble and time-frequency resources by using the report configuration information. The terminal device may send the preamble to the network device on the time-frequency resource corresponding to the beam identifier. The reporting of the configuration information includes reporting the used preamble and the corresponding time-frequency resource, and the terminal device uses the time-frequency resource to send the preamble, indicating that the terminal device is expected to receive the multicast service on the beam corresponding to the beam identifier. The network device detects the preamble sent by the terminal device on the time-frequency resource, so that the network device determines, by using the detected preamble, the beam identifier used by the terminal device and the multicast service that the terminal device desires to receive.

In a possible design of the second aspect, the terminal device reports the network device by using the reporting resource corresponding to the beam identifier, including: the terminal device periodically performs the network device with the first period. The reporting, the first period is a predefined period, or a period obtained from the reporting configuration information. The reporting configuration information that is determined by the network device further includes the reporting period information, where the reporting period is the first period, and if the terminal device is pre-configured with the first period, the terminal device may perform periodic reporting according to the first period, so that the network The device may receive the report reported by the terminal device by using the reporting resource according to the first period.

In a possible design of the second aspect, the method further includes: when the terminal device determines, according to the service control information, that the multicast service has been stopped, the terminal device stops reporting by using the reported resource. After the terminal device is not interested in continuing to receive a certain multicast service, the terminal device stops reporting the reported resource, and the network device can no longer detect the reported resource used by the terminal device. At this time, the network device determines that the terminal device does not expect to receive the multicast device. In the multicast service, the network device can stop sending multicast services to the terminal device to save transmission resources and improve multicast transmission efficiency.

In a third aspect, the embodiment of the present application provides a network device, including: a processing module, configured to determine a report configuration information, where the report configuration information is used to indicate a service identifier of a multicast service being transmitted, and the multicast The mapping between the beam identifier and the reporting resource that can be used by the service, the reporting resource is used to report the multicast service that the terminal device desires to use, and the corresponding beam identifier, and the sending module is configured to send the report configuration information.

In a possible design of the third aspect, the sending module is further configured to send service control information, where the service control information includes: a service identifier of the multicast service.

In a possible design of the third aspect, the service control information further includes: configuration information of a service transmission resource of the multicast service, where the service transmission resource includes at least one of the following resources: the multicast service Corresponding wireless network temporary identifier RNTI, time information corresponding to the multicast service, and physical control channel resources corresponding to the multicast service.

In a possible design of the third aspect, the network device further includes: a receiving module, wherein the processing module is further configured to control the receiving module to detect the reported resource, and determine the terminal according to the detection result. The multicast service that the device expects to receive and the beam identification that the terminal device can use.

In a possible design of the third aspect, the processing module is further configured to: after determining, according to the detection result, the multicast service that the terminal device desires to receive and the beam identifier that can be used by the terminal device, control the sending module Scheduling the multicast service that the terminal device desires to receive on a beam corresponding to the beam identifier that can be used by the terminal device.

In a possible design of the third aspect, when the reporting configuration information is used to indicate a mapping relationship between a service identifier, a beam set, and a reporting resource of the multicast service, the reporting resource includes: the terminal device-specific Uplink resources;

The processing module is further configured to control, by the receiving module, the measurement result reported by the terminal device for the at least one beam in the beam set on the dedicated uplink resource.

In a possible design of the third aspect, the reporting configuration information further includes: a preamble and a time-frequency resource reported by the terminal device; the processing module is further configured to control the receiving module to be in the Detecting the preamble sent by the terminal device on a time-frequency resource.

In a possible design of the third aspect, the reporting configuration information further includes: the first period used by the terminal device to periodically report.

In a fourth aspect, the embodiment of the present application further provides a communication device, including: a processing module, configured to acquire, by a network device, report configuration information, where the report configuration information is used to indicate a service identifier of a multicast service being transmitted. The mapping between the beam identifier and the reporting resource that can be used by the multicast service, the reporting resource is used to report the multicast service that the communication device desires to use, and the corresponding beam identifier; and the sending module is configured to be used as the communication When the device determines that the multicast service is expected to be received, the device reports the network device by using the reporting resource corresponding to the beam identifier.

In a possible design of the fourth aspect, the processing module is further configured to obtain service control information sent by the network device, where the service control information includes: a service identifier of a multicast service being transmitted.

In a possible design of the fourth aspect, the service control information further includes: configuration information of a service transmission resource of the multicast service, where the service transmission resource includes at least one of the following resources: the multicast service Corresponding wireless network temporary identifier RNTI, time information corresponding to the multicast service, and physical control channel corresponding to the multicast service; the communication device further includes: a receiving module, configured to receive, by using the service transmission resource, Multicast service sent by the network device.

In a possible design of the fourth aspect, the processing module is further configured to: when the reporting configuration information is used to indicate a mapping relationship between a service identifier, a beam set, and a reporting resource of the multicast service, A beam in the set of beams is measured and a measurement of at least one beam is generated; determining whether the multicast service is desired to be received on the at least one beam.

In a possible design of the fourth aspect, the reporting resource includes: an uplink resource dedicated to the communications device; and the sending module is further configured to send, by using, the uplink resource dedicated to the communications device to the network device And reporting information indicating a measurement result of the at least one beam.

In a possible design of the fourth aspect, the reporting configuration information includes: a preamble and a time-frequency resource, where the sending module is further configured to send, to the network device, a time-frequency resource corresponding to the beam identifier. The preamble.

In a possible design of the fourth aspect, the sending module is further configured to perform periodic reporting to the network device in a first period, where the first period is a predefined period, or from the reporting The period obtained in the configuration information.

The respective possible designs of the communication devices of the third to fourth aspects are the same as those of the corresponding possible designs of the methods of the first to second aspects, and are not described again.

In a fifth aspect, there is provided a communication device comprising a processor and a transceiver, the processor performing the methods of the first to second aspects described above.

In a sixth aspect, a communication device is provided, including a processor, and an interface. The processor performs the methods of the first to second aspects.

In a seventh aspect, a communication device is provided, comprising a memory, a processor, and a program stored on the memory and executable on the processor, the processor implementing the method in the first to second aspects. It should be noted that the memory may be non-volatile or volatile, and its location may be internal to the communication device or external to the communication device.

In an eighth aspect, a communication device is provided, which can use the methods of the first to second aspects. The communication device may be a network device or a terminal device, or may be hardware that implements similar functions.

In a ninth aspect, a system is provided, the system comprising the above terminal device and network device, and a core network device.

A tenth aspect, a computer readable storage medium for storing a computer program, the computer program comprising instructions for performing the method of any of the first aspect to the second aspect.

In an eleventh aspect, a computer program product is provided, the computer program product comprising: computer program code, when the computer program code is run on a computer, causing the computer to perform any of the first aspect to the second aspect described above A possible implementation.

DRAWINGS

FIG. 1 is a schematic structural diagram of a communication system applied to a multicast transmission method according to an embodiment of the present disclosure;

2 is a schematic diagram of an interaction process between a network device and a terminal device according to an embodiment of the present disclosure;

FIG. 3 is a schematic block diagram of a multicast transmission method according to an embodiment of the present disclosure;

FIG. 4 is a schematic block diagram of another multicast transmission method according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of an interaction scenario between a network device and a terminal device in a communication system according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of another interaction process between a network device and a terminal device according to an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of an SC-MTCH used for a transmission service according to an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

FIG. 9 is a schematic structural diagram of another network device according to an embodiment of the present disclosure;

FIG. 10 is a schematic structural diagram of another network device according to an embodiment of the present disclosure;

FIG. 11 is a schematic structural diagram of another network device according to an embodiment of the present disclosure;

FIG. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;

FIG. 13 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure;

FIG. 14 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure;

FIG. 15 is a schematic structural diagram of another terminal device according to an embodiment of the present disclosure.

detailed description

The terms "first", "second" and the like in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the terms so used are interchangeable under appropriate circumstances, and are merely illustrative of the manner in which the objects of the same attribute are used in the description of the embodiments of the present application. In addition, the terms "comprises" and "comprises" and "comprises", and any variations thereof, are intended to cover a non-exclusive inclusion so that a process, method, system, product, or device comprising a series of units is not necessarily limited to those elements, but may include Other units listed or inherent to these processes, methods, products or equipment.

The embodiment of the present invention proposes a solution based on the communication system shown in FIG. 1. The embodiment of the invention provides a communication system 100. The communication system 100 includes at least one network device 20 and at least one terminal device 10. In FIG. 1, one terminal device is taken as an example. The access network device can be a base station and is connected to other network devices 60.

The technical solution of the embodiments of the present invention can be applied to various data processing communication systems, such as, for example, code division multiple access (CDMA), time division multiple access (TDMA), frequency division multiple access. (frequency division multiple access, FDMA), orthogonal frequency-division multiple access (OFDMA), single carrier frequency division multiple access (SC-FDMA), and other systems. The term "system" can be replaced with "network". A CDMA system can implement wireless technologies such as universal terrestrial radio access (UTRA), CDMA2000, and the like. UTRA may include wideband CDMA (WCDMA) technology and other CDMA variant technologies. CDMA2000 can cover the interim standard (IS) 2000 (IS-2000), IS-95 and IS-856 standards. The TDMA system can implement a wireless technology such as a global system for mobile communication (GSM). An OFDMA system can implement such as evolved universal radio land access (evolved UTRA, E-UTRA), ultra mobile broadband (UMB), IEEE 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, Flash OFDMA And other wireless technologies. UTRA and E-UTRA are UMTS and UMTS evolved versions. The various versions of 3GPP in long term evolution (LTE) and LTE-based evolution are new versions of UMTS that use E-UTRA. The fifth generation (5Generation, referred to as "5G") communication system and New Radio ("NR") are the next generation communication systems under study. In addition, the communication system 100 can also be applied to future-oriented communication technologies, and the technical solutions provided by the embodiments of the present invention are applicable. The system architecture and the service scenario described in the embodiments of the present invention are for the purpose of more clearly illustrating the technical solutions of the embodiments of the present invention, and do not constitute a limitation of the technical solutions provided by the embodiments of the present invention. The technical solutions provided by the embodiments of the present invention are equally applicable to similar technical problems.

FIG. 1 shows a structure of a radio access network (RAN) in a communication system according to an embodiment of the present application. The RAN may be a base station access system of a 2G network (ie, the RAN includes a base station and a base station controller), or may be a base station access system of a 3G network (ie, the RAN includes a base station and an RNC), or may be 4G. The base station access system of the network (ie, the RAN includes an eNB and an RNC), or may be a base station access system of a 5G network.

The RAN includes one or more network devices 20. The CN may be an MME and/or an S-GW of a 4G network, or may be an SGSN or a GGSN of a 3G network, or an access and mobility management functional entity of a Next Generation Core Network (NG-Core) that may be a 5G network ( Access and Mobility Management Function (AMF), or User Plane Function (UPF), or Session Management Function (SMF). The network device 20 may be any device having a wireless transceiving function or a chip disposed in a device of a specific radio transceiving function. The network device 20 includes, but is not limited to, a base station (eg, a base station BS, a base station NodeB, an evolved base station eNodeB or eNB, a base station gNodeB or gNB in a fifth generation 5G communication system, a base station in a future communication system, and a WiFi system). Access node, wireless relay node, wireless backhaul node, etc. The base station may be: a macro base station, a micro base station, a pico base station, a small station, a relay station, and the like. A plurality of base stations may support a network of one or more of the techniques mentioned above, or a future evolved network. The core network may support the above mentioned network of one or more technologies, or a future evolved network. The base station may include one or more co-site or non-co-located transmission receiving points (TRPs). The network device 20 may also be a wireless controller, a centralized unit (CU), or a distributed unit (DU) in a cloud radio access network (CRAN) scenario. The network device can also be a server, a wearable device, or an in-vehicle device. Hereinafter, the network device 20 will be described as an example of a base station. The plurality of network devices 20 may be the same type of base station or different types of base stations. The base station can communicate with the terminal device 10 or with the terminal device 10 through the relay station. The terminal 10 can support communication with multiple base stations of different technologies. For example, the terminal device can support communication with a base station supporting the LTE network, can also support communication with a base station supporting the 5G network, and can also support a base station with an LTE network and a 5G network. Dual connectivity of the base station. For example, the terminal is connected to a radio access network (RAN) node of the wireless network. Currently, some examples of RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), and Node B (Node). B, NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB), baseband unit , BBU), or wireless fidelity (Wifi) access point (AP). In a network structure, a network device may include a centralized unit (CU) node, or a distributed unit (DU) node, or a RAN device including a CU node and a DU node.

The terminal device 10, also referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), a terminal, etc., is a voice and/or data connection provided to the user. A device, or a chip disposed in the device, for example, a handheld device having an wireless connection function, an in-vehicle device, or the like. Currently, some examples of terminal devices are: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, enhancements. Augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, smart grid A wireless terminal in a wireless terminal, a wireless terminal in a transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, or the like.

FIG. 2 is a schematic diagram of an interaction process between a network device and a terminal device according to an embodiment of the present application. The information processing method provided by the embodiment of the present application mainly includes the following processes:

S01: The network device determines to report the configuration information, where the reporting configuration information is used to indicate a service identifier of the multicast service being transmitted, a mapping between the beam identifier and the reported resource that can be used by the multicast service, and the reporting resource is used for reporting the terminal. The multicast service that the device expects to use and the corresponding beam identification.

In this embodiment of the present application, the network device may refer to a base station, for example, the base station determines to report configuration information. The network device can transmit the multicast service to the terminal device, and the network device needs to detect the multicast service that the terminal device desires to receive to determine which multicast services need to be sent to which terminal devices. In order to enable the terminal device to report according to the requirements of the network device, the network device first determines to report the configuration information. The mapping configuration information indicates the mapping relationship between the following three types: the service identifier of the multicast service being transmitted, the beam identifier that can be used by the multicast service, and the reporting resource, where the service identifier is used to identify the specific multicast service. The beam identifier is used to identify a beam that can be used by the multicast service, and the report resource is a resource that can be used by the terminal device to report to the network device. Specifically, the report resource is used to report the multicast service that the terminal device desires to use and the corresponding beam identifier. . The network device indicates the mapping relationship between the service identifier, the beam identifier, and the reported resource by using the report configuration information. When the terminal device determines that the report resource is used for reporting, the network device can determine, by using the report configuration information, the corresponding information corresponding to the reported resource. Broadcast service and corresponding beam identification.

For example, the network device configures two types of reporting resources for the terminal device, namely, resource 1 and resource 2, where resource 1 corresponds to service identifier 1 and beam identifier 1, and resource 2 corresponds to service identifier 2 and beam identifier 2. The mapping configuration information of the network device configuration may include: a mapping relationship between the resource 1, the service identifier 1 and the beam identifier 1, and a mapping relationship between the resource 2, the service identifier 2, and the beam identifier 2.

S02: The network device sends the report configuration information.

After the network device determines the foregoing report configuration information, the network device may send the report configuration information. For example, the network device may send the report configuration information to the at least one terminal device through the wireless network.

In some embodiments of the application, the network device sends the report configuration information, including:

The network device receives the multicast service request message sent by the terminal device;

The network device sends the report configuration information to the terminal device according to the multicast service request message.

The terminal device may first send a multicast service request message to the network device, and the network device may receive the multicast service request message sent by the terminal device, so that the network device determines which terminal device requests the multicast service, and the network device may The device replies and reports the configuration information.

The network device sends the report configuration information through beams in different directions.

The reporting device can send the configuration information in the beam in different directions, and the terminal devices in the coverage of the beam in different directions are all sent by the network device in the different directions. You can receive the report configuration information of the network device configuration.

The network device sends a system broadcast message indicating that the configuration information is reported; or,

The network device sends the report configuration information through the multicast service control channel.

Specifically, the network device may send a system broadcast message, and the system broadcasts a message to indicate the report configuration information, or the network device carries the report configuration information in the multicast service control channel. In this implementation scenario, the terminal device may obtain the foregoing report configuration information. For example, the terminal device may obtain the report configuration information from the system broadcast message, or read the report configuration information from the multicast service control channel. Further, before the terminal device reads the multicast service control channel, the method further includes: sending a request to the network device, requesting the network device to send the report configuration information.

S03. The terminal device acquires the report configuration information sent by the network device, where the report configuration information is used to indicate a service identifier of the multicast service being transmitted, a beam identifier that can be used by the multicast service, and a mapping relationship between the reported resources, and report the resource. It is used to report the multicast service that the terminal device desires to use and the corresponding beam identifier.

In the embodiment of the present application, the network device sends the report configuration information, and the terminal device receives the report configuration information configured by the network device by using the wireless network. The reporting configuration information is used to indicate the mapping between the service identifier of the multicast service being transmitted, the beam identifier that can be used by the multicast service, and the reported resource. Therefore, the terminal device can determine the following three configurations from the report configuration information. The mapping relationship between the service of the multicast service being transmitted, the beam identifier that can be used by the multicast service, and the reported resource.

In some embodiments of the application, the terminal device acquires the report configuration information sent by the network device, including:

Receiving, by the terminal device, a system broadcast message sent by the network device to indicate that the configuration information is reported; or

The terminal device receives the report configuration information sent by the network device by using the multicast service control channel.

S04. When the terminal device determines that it is desired to receive the multicast service, the terminal device reports the report to the network device by using the report resource corresponding to the beam identifier.

In the embodiment of the present application, after receiving the configuration information, the terminal device may determine, by using the report configuration information, which multicast services are being transmitted, and the terminal device determines, from the multicast services, the terminal device that the terminal device desires to receive. The broadcast service passes the mapping relationship between the three: the service identifier of the multicast service being transmitted, the beam identifier that can be used by the multicast service, and the reported resource. The terminal device can determine the reported resource used, and then the terminal device uses the beam. The corresponding reporting resource is reported to the network device, and the network device determines the multicast service that the terminal device desires to receive and the corresponding beam identifier by detecting the reported resource. The mapping relationship between the reporting resources used by the network device and the beam and the multicast service, the network device can determine which of the beams have which terminal devices are expected to receive the multicast service, and the network device can determine the sending downlink according to the determined result information. The beam, so that the transmission of the multicast service does not need to adopt the broadcast mode, so that the transmission of the multicast service is targeted, and the transmission efficiency of the multicast service is improved.

For example, the terminal device determines, by reporting the configuration information, two types of reporting resources, which are configured as follows: resource 1 and resource 2, where resource 1 corresponds to service identifier 1 and beam identifier 1, and resource 2 corresponds to service identifier. 2 and the beam identifier 2, the report configuration information of the network device configuration may include: a mapping relationship between the resource 1, the service identifier 1 and the beam identifier 1, and a mapping relationship between the resource 2, the service identifier 2, and the beam identifier 2. If the terminal device is expected to receive the multicast service corresponding to the service identifier 2, the terminal device may use the resource 2. If the terminal device desires to receive the multicast service corresponding to the service identifier 1, the terminal device may use the resource 1. The reporting resource used by the terminal device in the embodiment of the present application indicates the multicast service that the terminal device desires to use and the corresponding beam identifier.

An example of the method performed by the network device in the foregoing embodiment is that the terminal device reports the network device by using the reporting resource corresponding to the beam identifier, so that the reporting resource used by the network device can determine that the terminal device is expected to receive. Multicast service and corresponding beam identification. Through the mapping relationship between the reporting resources used by the terminal device and the beam and the multicast service, the network device can determine which of the beams have which terminal devices are expected to receive the multicast service, and the network device can determine to send the downlink beam according to the determined result information. Therefore, the transmission of the multicast service does not need to adopt the broadcast mode, so that the transmission of the multicast service is targeted, and the transmission efficiency of the multicast service is improved.

The foregoing embodiment describes the multicast transmission method provided by the embodiment of the present application from the perspective of the network device, and then describes the multicast transmission method provided by the embodiment of the present application from the perspective of the terminal device, as shown in FIG. An embodiment provides a multicast transmission method, including:

301. The network device determines to report the configuration information, where the reporting configuration information is used to indicate a service identifier of the multicast service being transmitted, a mapping between the beam identifier and the reported resource that can be used by the multicast service, and the reporting resource is used for reporting the terminal. The multicast service that the device expects to use and the corresponding beam identification.

In the embodiment of the present application, the network device may transmit the multicast service to the terminal device, and the network device needs to detect the multicast service that the terminal device desires to receive to determine which multicast services need to be sent to which terminal devices. In order to enable the terminal device to report according to the requirements of the network device, the network device first determines to report the configuration information. The mapping configuration information indicates the mapping relationship between the following three types: the service identifier of the multicast service being transmitted, the beam identifier that can be used by the multicast service, and the reporting resource, where the service identifier is used to identify the specific multicast service. The beam identifier is used to identify a beam that can be used by the multicast service, and the report resource is a resource that can be used by the terminal device to report to the network device. Specifically, the report resource is used to report the multicast service that the terminal device desires to use and the corresponding beam identifier. . The network device indicates the mapping relationship between the service identifier, the beam identifier, and the reported resource by using the report configuration information. When the terminal device determines that the report resource is used for reporting, the network device can determine, by using the report configuration information, the corresponding information corresponding to the reported resource. Broadcast service and corresponding beam identification.

302. The network device sends the report configuration information.

In some embodiments of the present application, the multicast transmission method provided by the embodiment of the present application may further include the following steps:

The network device sends service control information, where the service control information includes: a service identifier of the multicast service.

The network device may send the service control information in addition to the report configuration information. The report configuration information may also be referred to as “beam report control information”, and the service control information may also be referred to as “multicast service control information”. The sending of the configuration information and the sending of the service control information may be sent in the same piece of information, or may be separately sent by using two separate pieces of information, which may be combined with the application scenario to determine the service control information and the transmission of the report configuration information.

The service control information sent by the network device may include a service identifier of the multicast service being transmitted, so that the terminal device receiving the service control information may determine which multicast services are being transmitted, and the terminal device may determine which one is expected to be received. Or which multicast services.

In some embodiments of the present application, the service control information further includes: configuration information of a service transmission resource of the multicast service, where the service transmission resource includes at least one of the following resources: a temporary identifier of the wireless network corresponding to the multicast service (Radio Network Temporary) Identity, RNTI), time information corresponding to the multicast service, and physical control channel resources corresponding to the multicast service.

The service transmission resource is a transmission resource used by the network device to send the multicast service. The terminal device can determine the transmission resource used by the network device to send the multicast service by using the configuration information of the service transmission resource, and the terminal device uses the service transmission. The resource can receive the multicast service sent by the network device.

For example, the service control information includes the service information of the multicast service being transmitted, and optionally, the configuration information of the service transmission resource of the multicast service, where the service transmission resource includes at least one of the following resources, for example, multiple The RNTI corresponding to the broadcast service, the time information of the multicast service transmission, and the time information includes a period parameter and an offset parameter. The control resource configuration information (CORESET) of the PDCCH corresponding to the service transmission, such as the time domain or the frequency domain position of the PDCCH.

In some embodiments of the present application, after the network device sends the report configuration information, the multicast transmission method provided by the embodiment of the present application further includes:

The network device detects the reported resource, and determines, according to the detection result, the multicast service that the terminal device desires to receive and the beam identifier that the terminal device can use.

The mapping configuration information sent by the network device to the terminal device indicates the mapping relationship between the following three types: the service identifier of the multicast service being transmitted, the beam identifier that can be used by the multicast service, and the reported resource. The terminal device uses the reporting resource to report, and the network device can also detect the reported resource and report the reported resource through the network device. Through the mapping relationship, the network device can determine the multicast service that the terminal device desires to receive and the terminal device. The beam identification used. Through the mapping relationship between the reporting resources used by the terminal device and the beam and the multicast service, the network device can determine which of the beams have which terminal devices are expected to receive the multicast service, and the network device can determine to send the downlink beam according to the determined result information.

Further, in some embodiments of the present application, after determining the multicast service that the terminal device is expected to receive and the beam identifier that the terminal device can use, the multicast transmission method provided by the embodiment of the present application further includes:

The network device schedules the multicast service that the terminal device desires to receive on the beam corresponding to the beam identifier that the terminal device can use.

After the network device determines the multicast service and the beam identifier that the terminal device is expected to receive by detecting the reporting resource, the network device schedules the multicast service that the terminal device expects to receive on the beam corresponding to the beam identifier that can be used by the terminal device, and therefore the present application In the embodiment, the network device sends the multicast service for the terminal device that is expected to receive the multicast service, and does not need to broadcast for all the terminal devices, thereby improving the transmission efficiency of the multicast service.

In some embodiments of the present application, there may be multiple beam identifiers that can be used by the network device to determine the multicast service in the configuration information, and the beams corresponding to the multiple beam identifiers respectively constitute a beam set, and the beam set includes at least the beam set. The two-beam identification information is used to indicate the mapping relationship between the service identifier, the beam set, and the reported resource of the multicast service. In this implementation scenario, the reporting resource determined by the network device may include: an uplink resource dedicated to the terminal device. That is, the uplink resource is used exclusively for reporting by the terminal device. In this implementation scenario, the network device detects the reported resources, including:

The network device detects, on a dedicated uplink resource, a measurement result reported by the terminal device for at least one beam in the beam set.

When the mapping relationship between the service identifier, the beam set, and the reported resource is indicated in the report configuration information determined by the network device, the terminal device measures the beam in the beam set, and generates a measurement result of the at least one beam, and the terminal device determines whether The multicast service is expected to be received on the at least one beam. When the terminal device desires to receive a certain multicast service, the terminal device may report the use of the dedicated uplink resource allocated by the network device. Therefore, in a scenario in which the network device allocates the dedicated uplink resource, the network device detects, on the dedicated uplink resource, the measurement result reported by the terminal device for the at least one beam in the beam set, so that the network device can determine the beam used by the terminal device. . For example, the network device determines that the beam whose measurement result is greater than the measurement threshold is the beam used by the terminal device.

In some embodiments of the present application, the reporting of the configuration information further includes: the preamble and the time-frequency resource reported by the terminal device.

The network device detects the reported resources, including:

The network device detects the preamble sent by the terminal device on the time-frequency resource.

The network device may indicate, to the terminal device, a preamble that can be used and a time-frequency resource corresponding to the preamble. The terminal device determines the available preamble and time-frequency resources by using the report configuration information. The terminal device may send the preamble to the network device on the time-frequency resource corresponding to the beam identifier. The reporting of the configuration information includes reporting the used preamble and the corresponding time-frequency resource, and the terminal device uses the time-frequency resource to send the preamble, indicating that the terminal device is expected to receive the multicast service on the beam corresponding to the beam identifier. The network device detects the preamble sent by the terminal device on the time-frequency resource, so that the network device determines, by using the detected preamble, the beam identifier used by the terminal device and the multicast service that the terminal device desires to receive.

In some embodiments of the present application, the reporting the configuration information further includes: the first period used by the terminal device to periodically report.

The reporting configuration information that is determined by the network device further includes the reporting period information, where the reporting period is the first period, the terminal device may perform periodic reporting according to the first period, so that the network device may receive the terminal device according to the first period. Reporting using escalated resources.

An example of the method performed on the network device by using the foregoing embodiment, after the network device determines that the configuration information is reported, the device sends the report configuration information to the terminal device, and the terminal device reports the report resource corresponding to the beam identifier to the network device, thereby The reporting resource used by the network device can determine the multicast service that the terminal device desires to receive and the corresponding beam identifier. Through the mapping relationship between the reporting resources used by the terminal device and the beam and the multicast service, the network device can determine which of the beams have which terminal devices are expected to receive the multicast service, and the network device can determine to send the downlink beam according to the determined result information. Therefore, the transmission of the multicast service does not need to adopt the broadcast mode, so that the transmission of the multicast service is targeted, and the transmission efficiency of the multicast service is improved.

The foregoing embodiment describes the multicast transmission method provided by the embodiment of the present application from the perspective of the network device. Next, another multicast transmission method performed by the terminal device is introduced. Referring to FIG. 4, the embodiment of the present application provides a method. Multicast transmission methods, including:

401. The terminal device acquires the report configuration information sent by the network device, where the report configuration information is used to indicate a service identifier of the multicast service being transmitted, a beam identifier that can be used by the multicast service, and a mapping relationship between the reported resources, and report the resource. It is used to report the multicast service that the terminal device desires to use and the corresponding beam identifier.

402. When the terminal device determines that it is desired to receive the multicast service, the terminal device reports the report to the network device by using the report resource corresponding to the beam identifier.

The terminal device acquires service control information sent by the network device, where the service control information includes: a service identifier of the multicast service being transmitted.

The terminal device can receive the service control information in addition to receiving the report configuration information. The report configuration information may also be referred to as “beam report control information”, and the service control information may also be referred to as “multicast service control information”. If the configuration information is sent and the service control information is sent in the same piece of information, the terminal device can receive the service control information and report the configuration information through a piece of information. If the reporting configuration information and the service control information are separately sent by using two separate pieces of information, the terminal device may separately receive the service control information sent by the network device and report the configuration information.

The service control information received by the terminal device may include the service identifier of the multicast service being transmitted, so that the terminal device may determine which multicast services are being transmitted, and the terminal device may determine which multicast service or services are expected to be received.

In some embodiments of the present application, the service control information further includes configuration information of a service transmission resource of the multicast service. The service transmission resource includes at least one of the following: a radio network temporary identifier RNTI corresponding to the multicast service, time information corresponding to the multicast service, and a physical control channel corresponding to the multicast service;

The multicast transmission method provided in this embodiment of the present application may further include:

The terminal device uses the service transmission resource to receive the multicast service sent by the network device.

In some embodiments of the present application, there may be multiple beam identifiers that can be used by the network device to determine the multicast service in the configuration information, and the beams corresponding to the multiple beam identifiers respectively constitute a beam set, and the beam set includes at least the beam set. The two-beam identification information is used to indicate the mapping relationship between the service identifier, the beam set, and the reported resource of the multicast service. In this implementation scenario, the reporting resource determined by the terminal device by reporting the configuration information may include: an uplink resource dedicated to the terminal device. That is, the uplink resource is used exclusively for reporting by the terminal device. In this implementation scenario, the multicast transmission method provided by the embodiment of the present application further includes the following steps:

When the reporting configuration information is used to indicate a mapping relationship between the service identifier, the beam set, and the reporting resource of the multicast service, the terminal device measures the beam in the beam set, and generates a measurement result of the at least one beam;

The terminal device determines whether it is desired to receive the multicast service on at least one of the beams.

The terminal device measures the beam in the beam set and generates a measurement result of the at least one beam, where the terminal device determines whether the mapping relationship between the service identifier, the beam set, and the reported resource is in the report configuration information determined by the terminal device. It is desirable to receive multicast traffic on at least one beam, for example, the terminal device determines that the beam whose measurement result is greater than the measurement threshold is a beam used by the terminal device.

In some embodiments of the present application, the reporting resource includes: an uplink resource dedicated to the terminal device. The terminal device reports the network device by using the report resource corresponding to the beam identifier, including:

The terminal device sends the reporting information indicating the measurement result of the at least one beam to the network device by using the uplink resource dedicated to the terminal device.

When the terminal device is expected to receive a certain multicast service, the terminal device may use the dedicated uplink resource allocated by the network device to report. Therefore, in a scenario in which the network device allocates a dedicated uplink resource, the terminal device reports a measurement result for at least one beam in the beam set, so that the network device can determine the beam used by the terminal device. For example, the network device determines that the beam whose measurement result is greater than the measurement threshold is the beam used by the terminal device.

It should be noted that, in the embodiment of the present application, the reporting configuration information includes: a beam set, and the terminal device reports, according to the beam set, a measurement result for at least one beam in the wave speed set, so that the network device determines the downlink beam used by the terminal device.

In some embodiments of the present application, the reporting configuration information includes: a preamble and a time-frequency resource, and the terminal device reports the network device by using the reporting resource corresponding to the beam identifier, including:

The terminal device sends the preamble to the network device on the time-frequency resource corresponding to the beam identifier.

In some embodiments of the present application, the terminal device reports the network device by using the reporting resource corresponding to the beam identifier, including:

The terminal device periodically reports to the network device in a first period, where the first period is a predefined period, or a period obtained from reporting the configuration information.

The reporting configuration information that is determined by the network device further includes the reporting period information, where the reporting period is the first period, and if the terminal device is pre-configured with the first period, the terminal device may perform periodic reporting according to the first period, so that the network The device may receive the report reported by the terminal device by using the reporting resource according to the first period.

When the terminal device determines that the multicast service has been stopped according to the service control information, the terminal device stops reporting using the reported resource.

After the terminal device is not interested in continuing to receive a certain multicast service, the terminal device stops reporting the reported resource, and the network device can no longer detect the reported resource used by the terminal device. At this time, the network device determines that the terminal device does not expect to receive the multicast device. In the multicast service, the network device can stop sending multicast services to the terminal device to save transmission resources and improve multicast transmission efficiency.

To facilitate a better understanding and implementation of the foregoing solutions of the embodiments of the present application, the following application scenarios are specifically illustrated.

In the prior art, the same service data is repeatedly transmitted on each beam, which may result in waste of resources, because the UE does not necessarily receive the multicast service on each beam.

To solve the problem, in the embodiment of the present application, the network device configures the configuration information, so that by detecting the reporting resources of the terminal device, it can determine which beams have which multicast devices are expected to receive which multicast services, and then the network device can determine according to the determination. The above result information is determined to determine the transmission beam, so that the multicast service information is transmitted on the beam received by the terminal device.

As shown in FIG. 5, the communication system architecture provided by the embodiment of the present application mainly includes: a network device 40 and a terminal device 50. among them,

Network device 40 is an access network device, such as a base station. The network device 40 and the terminal device 50 are connected to receive UE data and transmit the data to the core network device. The access network device corresponds to different devices in different systems, such as the corresponding base station and the base station controller in the 2G system, the corresponding base station and the RNC in the 3G system, and the corresponding eNB in the 4G system, and the 5G system corresponds to the network access device.

The terminal device 50 reports the association of the service and its beam. The terminal device 50 can be a user equipment, and includes a wireless transceiver function, and can cooperate with the network device to provide a communication service for the user.

As shown in FIG. 6, the flow of the interaction between the network device and the terminal device is schematically illustrated. In the following embodiment, the terminal device is used as the UE for example, and the following processes are mainly included:

S11. The network device sends multicast service control information to the UE, and the UE beam reports control information.

The multicast service control information includes the service information of the multicast service being transmitted, and optionally includes the multicast service transmission resource information, where the transmission resource includes at least one of the following: RNTI; time information of the service transmission, the time information includes a period parameter and a bias parameter; the resource information of the PDCCH corresponding to the service transmission, such as a time domain or a frequency domain position of the PDCCH.

S12. Receive multicast service control information and beam report control information.

The UE acquiring the multicast service control information may include acquiring from a system broadcast message or reading from a Multicast Control Channel (MCCH). Specifically, the configuration information of the MCCH channel is sent in a system broadcast, where the MCCH configuration information includes scheduling PDCCH resource information (such as a time domain or a frequency domain location of the PDCCH) used by the MCCH.

For example, as shown in the following figure, for SC-PTM transmission, the base station can configure DCI format as DCI Format 1A, DCI Format 1A for continuous resource block (RB) allocation, and SC-PTM introduces two logical channels, single cell. MBMS point-to-multipoint control channel (SC-MCCH) and single cell MBMS traffic control channel (SC-MTCH), as shown in Figure 7, A schematic diagram of an SC-MTCH provided by an embodiment for transmitting a service. The SC-MCCH is used to transmit control information, and includes configuration information of the SC-MTCH, such as a group radio network temporary identifier (Group-RNTI, G-RNTI) and a discontinuous reception (DRX) parameter corresponding to the SC-MTCH. The SC-MCCH (abbreviated as MCCH in the figure) is transmitted in a periodic manner. SC-MTCH is used for transmission services, and each service corresponds to one SC-MTCH channel. SC-MTCH can be continuously transmitted, such as service 3, or non-continuous transmission, such as service 1 and service 2.

Further, before the UE reads the multicast service control information, the method further includes: sending a request to the network device, requesting the network device to send the multicast service control information.

In some embodiments of the present application, the beam reporting control information includes: a beam set, and the UE reports a measurement result for at least one beam in the wave speed set based on the beam set. In order for the network device to determine the downlink beam used by the UE.

The beam reporting control information includes the following manner: The beam reporting control information includes: a beam set, and the UE reports, according to the beam set, a measurement result for at least one beam in the wave speed set. In order for the network device to determine the downlink beam used by the UE. The UE also reports the multicast service identifier that is of interest to the UE, and the UE interest service table further reports the changed multicast service identifier after the change.

Optionally, the beam reporting control information includes the following manner: the beam reporting control information includes: a multicast service identifier, a beam identifier, and a corresponding beam reporting control information, where the UE corresponds to the beam identifier. The beam is expected to receive the multicast service, and the reported resource indicated by the beam reporting control information is used for reporting. The specific beam reporting control information includes: reporting the used preamble and its corresponding time-frequency resource. The UE uses the resource to send a preamble, indicating that the UE is expected to receive the multicast service in a beam corresponding to the beam identifier.

Optionally, the beam reporting control information further includes reporting period information, and the UE performs reporting according to the period.

Specifically, after the UE reads the multicast service control information, it is determined that it is desired to receive at least one of the services, and then reported according to the beam reporting control information corresponding to the service. Optionally, after the UE starts reporting, the preamble (ie, the preamble sequence) is sent in a certain period. The preamble corresponds to a time-frequency resource, and is determined according to a downlink beam in which it is located and a service that is expected to be received. The period is a fixed period or is determined according to a period in the beam reporting control information.

Optionally, after the UE is not interested in continuing to receive the service, the reporting is stopped by using the reported resource.

Optionally, when the UE determines that the multicast service has been stopped from the multicast service control information, stopping reporting by using the reported resource.

Optionally, the UE performs the reporting of the second mode after the mode is stopped. In the first mode, the UE reports the beam measurement result to use the uplink resource dedicated to the current UE, so that the network device determines that the measurement result is for the current UE, and according to the service reported by the UE, it can determine which downlink beams are used by the UE. send. Since the mode 1 report requires UE dedicated uplink resources. When the number of users in the cell is relatively large, the mode 2 report can be used. In the second report, all the UEs use the same resource (preamble and its corresponding time-frequency resource) for the same downlink beam and the service pairing, which saves the uplink. Overhead. However, when the number of users is small, since it is necessary to reserve corresponding resources, it is suitable for users to use.

S13. The terminal device reports the reported resource corresponding to the beam identifier to the network device.

The terminal device uses the reported resource to report when the terminal device is expected to receive the multicast service.

S14. The network detects the reporting information of the terminal device according to the beam reporting control information.

The network device detects the reported information of the UE according to the beam reporting control information.

For example, in the first method, the UE reports the beam measurement result to use the uplink resource dedicated to the current UE, so that the network device determines that the measurement result is for the current UE, and the network device can determine the service information according to the UE. Which downlink beams are sent from the service.

In the second mode, the network device detects, according to the preamble corresponding to the beam reporting control information and the time-frequency resource thereof, whether the UE sends the preamble, and determines, according to the beam reporting control information, the multicast service represented by the preamble and Beam identification.

S15. The network device schedules the multicast service on a beam corresponding to the beam identifier that can be used by the terminal device.

The network device determines, according to the collected beam identifier and the multicast service corresponding information, which bundles have which multicast service the UE expects to receive, and the network device schedules the corresponding multicast service in the corresponding downlink beam.

S16. The terminal device uses the service transmission resource to receive the multicast service sent by the network device.

The UE receives the multicast service according to the resource specified by the multicast service control information.

Specifically, if the multicast service control information includes an RNTI corresponding to the multicast service, the UE receives the multicast service according to the RNTI.

If the multicast service control information includes time information corresponding to the multicast service, the UE receives the multicast service according to the time information.

In the embodiment of the present application, the network determines which beams have which users are expected to receive, and then determines to send the downlink beam according to the information, by using the beam and service correspondence information reported by the UE.

It should be noted that, for the foregoing method embodiments, for the sake of simple description, they are all expressed as a series of action combinations, but those skilled in the art should understand that the present application is not limited by the described action sequence. Because certain steps may be performed in other sequences or concurrently in accordance with the present application. In the following, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present application.

In order to facilitate the implementation of the above solution of the embodiments of the present application, related devices for implementing the above solutions are also provided below.

The embodiment of the present application further provides a network device, which performs the foregoing method performed by the network device in FIG. 2, FIG. 3, and FIG. 6. As shown in FIG. 8, the network device 800 includes:

The processing module 801 is configured to determine the report configuration information, where the report configuration information is used to indicate a service identifier of the multicast service being transmitted, a beam identifier that can be used by the multicast service, and a mapping relationship between the reported resources, The reporting resource is used to report the multicast service that the terminal device desires to use and the corresponding beam identifier;

The sending module 802 is configured to send the reporting configuration information.

In some embodiments of the present application, the sending module 802 is further configured to send service control information, where the service control information includes: a service identifier of the multicast service.

In some embodiments of the present application, the service control information further includes: configuration information of a service transmission resource of the multicast service, where the service transmission resource includes at least one of the following resources: corresponding to the multicast service The wireless network temporarily identifies the RNTI, the time information corresponding to the multicast service, and the physical control channel resource corresponding to the multicast service.

In some embodiments of the present application, as shown in FIG. 8, the communication device 800 further includes: a receiving module 803, where

The processing module 801 is further configured to control the receiving module 803 to detect the reported resource, and determine, according to the detection result, a multicast service that the terminal device desires to receive and a beam identifier that can be used by the terminal device.

In some embodiments of the present application, the processing module 801 is further configured to: after determining, according to the detection result, the multicast service that the terminal device desires to receive and the beam identifier that can be used by the terminal device, control the sending module 802. Scheduling the multicast service that the terminal device desires to receive on a beam corresponding to the beam identifier that can be used by the terminal device.

In some embodiments of the present application, when the reporting configuration information is used to indicate a mapping relationship between a service identifier, a beam set, and a reporting resource of the multicast service, the reporting resource includes: an uplink resource dedicated to the terminal device. ;

The processing module 801 is further configured to control the receiving module 803 to detect, on the dedicated uplink resource, a measurement result reported by the terminal device for at least one beam in the beam set.

In some embodiments of the present application, the reporting configuration information further includes: a preamble and a time-frequency resource reported by the terminal device;

The processing module 801 is further configured to control the receiving module 803 to detect the preamble sent by the terminal device on the time-frequency resource.

In some embodiments of the present application, the reporting configuration information further includes: the first period used by the terminal device to periodically report.

It should be noted that the information interaction between the modules/units of the foregoing device, the execution process, and the like are based on the same concept as the method embodiment of the present application, and the technical effects thereof are the same as those of the method embodiment of the present application, and the specific content may be Refer to the description in the foregoing method embodiments of the present application, and details are not described herein again.

For the network device in this embodiment, reference may be made to the device shown in FIG. 9, which includes a processor 901, an application processor, a memory user interface, and other components (including devices such as a power source not shown). In FIG. 9, the above processing unit may be the processor 901 and perform corresponding functions. The transmitting unit and/or the receiving unit may be a wireless transceiver 903 in the figure, which performs a corresponding function through an antenna. It will be understood that the various elements shown in the figures are merely illustrative and are not essential elements of the embodiments.

For the network device in this embodiment, reference may be made to the device shown in FIG. As an example, the device can perform functions similar to those of the processor of Figure 9. In Figure 10, the device includes a processor, a transmit data processor, and a processor. In FIG. 10, the above processing unit may be the processor 1001 and perform the corresponding functions. The transmitting unit may be the transmitting data processor 1003 of FIG. 10, and the receiving unit may be the receiving data processor 1005 of FIG. Although a channel coder and a channel decoder are shown in the drawings, it is to be understood that these modules are not intended to be limiting, and are merely illustrative.

Fig. 11 shows another form of this embodiment. The processing device 1100 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The network device in this embodiment can be used as a modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1103, an interface 1104. The processor 1103 performs the functions of the above processing unit, and the interface 1104 performs the functions of the above sending unit and/or receiving unit. As a further variation, the modulation subsystem includes a memory 1106, a processor 1103, and a program stored on the memory and executable on the processor, the processor executing the method described in embodiment FIG. It should be noted that the memory 1106 may be non-volatile or volatile, and its location may be internal to the modulation subsystem or may be located in the processing device 1100 as long as the memory 1106 can be connected to the The processor 1103 is sufficient.

As another form of the embodiment, there is provided a computer readable storage medium having stored thereon the method of executing execution of a network device when the instruction is executed.

The embodiment of the present application further provides a terminal device, which performs the foregoing method performed by the terminal device in FIG. 2, FIG. 4, and FIG. 6. Referring to FIG. 12, the terminal device 1200 includes:

The processing module 1201 is configured to obtain the report configuration information sent by the network device, where the report configuration information is used to indicate a service identifier of the multicast service being transmitted, a beam identifier that can be used by the multicast service, and a report resource a mapping relationship, where the reporting resource is used to report a multicast service that the communication device desires to use and a corresponding beam identifier;

The sending module 1202 is configured to report the reported resource to the network device by using the report resource corresponding to the beam identifier when the communication device determines that the multicast service is expected to be received.

In some embodiments of the present application, the processing module 1201 is further configured to obtain service control information sent by the network device, where the service control information includes: a service identifier of a multicast service being transmitted.

In some embodiments of the present application, the service control information further includes: configuration information of a service transmission resource of the multicast service, where

The service transmission resource includes at least one of the following: a radio network temporary identifier RNTI corresponding to the multicast service, time information corresponding to the multicast service, and a physical control channel corresponding to the multicast service;

As shown in FIG. 12, the communication device further includes: a receiving module 1203, configured to receive, by using the service transmission resource, a multicast service sent by the network device.

In some embodiments of the present application, the processing module 1201 is further configured to: when the reporting configuration information is used to indicate a mapping relationship between a service identifier, a beam set, and a reporting resource of a multicast service, The beams in the set perform measurements and generate measurements of at least one beam; determine whether it is desired to receive the multicast traffic on the at least one beam.

In some embodiments of the present application, the reporting resource includes: an uplink resource dedicated to the communications device;

The sending module 1202 is further configured to send, to the network device, report information for indicating a measurement result of the at least one beam, by using an uplink resource dedicated to the communication device.

In some embodiments of the present application, the reporting configuration information includes: a preamble and a time-frequency resource,

The sending module 1202 is further configured to send the preamble to the network device on a time-frequency resource corresponding to the beam identifier.

In some embodiments of the present application, the sending module 1202 is further configured to perform periodic reporting to the network device in a first period, where the first period is a predefined period, or configured from the reporting The period obtained in the information.

For the terminal device in this embodiment, reference may be made to the device shown in FIG. 13, which includes a processor 1301, an application processor, a memory user interface, and other components (including devices such as a power source not shown). In FIG. 13, the above processing unit may be the processor 1301 and perform the corresponding functions. The transmitting unit and/or the receiving unit may be a wireless transceiver 1303 in the figure, which performs a corresponding function through an antenna. It will be understood that the various elements shown in the figures are merely illustrative and are not essential elements of the embodiments.

For the terminal device in this embodiment, reference may be made to the device shown in FIG. 14. As an example, the device can perform functions similar to the processor of Figure 13. In Figure 14, the device includes a processor, a transmit data processor, and a processor. In FIG. 14, the above processing unit may be the processor 1401 and perform the corresponding functions. The transceiver unit may include: a transmitting unit and a receiving unit, and the transmitting unit may be the transmitting data processor 1403 in FIG. 14, and the receiving unit may be the receiving data processor 1405 in FIG. Although a channel coder and a channel decoder are shown in the drawings, it is to be understood that these modules are not intended to be limiting, and are merely illustrative.

Fig. 15 shows another form of this embodiment. The processing device 1500 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The terminal device in this embodiment can be used as a modulation subsystem therein. Specifically, the modulation subsystem may include a processor 1503, an interface 1504. The processor 1503 performs the functions of the above processing unit, and the interface 1504 performs the functions of the above sending unit and/or receiving unit. As a further variation, the modulation subsystem includes a memory 1506, a processor 1503, and a program stored on the memory and executable on the processor, the processor implementing the method to perform terminal device execution when the program is executed . It should be noted that the memory 1506 may be non-volatile or volatile, and its location may be located inside the modulation subsystem or in the processing device 1500 as long as the memory 1506 can be connected to the The processor 1503 can be.

In another possible design, when the device is a chip in the device, the chip comprises: a processing unit and a communication unit, the processing unit may be, for example, a processor, and the communication unit may be, for example, an input/output interface, Pin or circuit, etc. The processing unit may execute computer-executable instructions stored by the storage unit to cause the chip within the device to perform the wireless communication method of any of the above aspects. Optionally, the storage unit is a storage unit in the chip, such as a register, a cache, etc., and the storage unit may also be a storage unit located outside the chip in the device, such as a read-only memory (read) -only memory, ROM) or other types of static storage devices, random access memory (RAM), etc. that can store static information and instructions.

The processor mentioned in any of the above may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more for controlling The integrated circuit of the program of the wireless communication method of the first aspect described above.

It should be further noted that the device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be Physical units can be located in one place or distributed to multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the embodiment. In addition, in the drawings of the device embodiments provided by the present application, the connection relationship between the modules indicates that there is a communication connection between them, and specifically may be implemented as one or more communication buses or signal lines.

Through the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software plus necessary general hardware, and of course, dedicated hardware, dedicated CPU, dedicated memory, dedicated memory, Special components and so on. In general, functions performed by computer programs can be easily implemented with the corresponding hardware, and the specific hardware structure used to implement the same function can be various, such as analog circuits, digital circuits, or dedicated circuits. Circuits, etc. However, software program implementation is a better implementation for more applications in this application. Based on such understanding, the technical solution of the present application, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer. , U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., including a number of instructions to make a computer device (may be A personal computer, server, or network device, etc.) performs the methods described in various embodiments of the present application.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product.

The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transfer to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.). The computer readable storage medium can be any available media that can be stored by a computer or a data storage device such as a server, data center, or the like that includes one or more available media. The usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

Claims

A multicast transmission method, comprising:

And determining, by the device, the configuration information, where the reporting configuration information is used to indicate a service identifier of the multicast service being transmitted, a beam identifier that can be used by the multicast service, and a mapping relationship between the reported resources, where the reporting resource is used by the device Reporting the multicast service that the terminal device desires to use and the corresponding beam identifier;

The device sends the report configuration information.
The method of claim 1 further comprising:

The device sends service control information, where the service control information includes: a service identifier of the multicast service.
The method according to claim 2, wherein the service control information further comprises: configuration information of a service transmission resource of the multicast service, where the service transmission resource comprises at least one of the following resources: The radio network temporary identifier RNTI corresponding to the broadcast service, the time information corresponding to the multicast service, and the physical control channel resource corresponding to the multicast service.
The method according to any one of claims 1 to 3, wherein, after the device sends the report configuration information, the method further includes:

The device detects the reported resource, and determines, according to the detection result, the multicast service that the terminal device desires to receive and the beam identifier that the terminal device can use.
The method according to claim 4, wherein after the determining, by the detection result, the multicast service that the terminal device desires to receive and the beam identifier that the terminal device can use, the method further includes:

The device schedules a multicast service that the terminal device desires to receive on a beam corresponding to a beam identifier that can be used by the terminal device.
The method according to any one of claims 4 to 5, wherein, when the reporting configuration information is used to indicate a mapping relationship between a service identifier, a beam set, and a reported resource of a multicast service, the reporting resource The method includes: an uplink resource dedicated to the terminal device;

The device detects the reported resource, including:

The device detects, on the dedicated uplink resource, a measurement result reported by the terminal device for at least one beam in the beam set.
The method according to any one of claims 4 to 6, wherein the reporting the configuration information further comprises: the preamble and the time-frequency resource reported by the terminal device;

The device detects the reported resource, including:

The device detects the preamble sent by the terminal device on the time-frequency resource.
The method according to any one of claims 1 to 7, wherein the reporting the configuration information further comprises: the terminal device periodically reporting the first period used.
A multicast transmission method, comprising:

The device obtains the report configuration information sent by the network device, where the report configuration information is used to indicate a service identifier of the multicast service being transmitted, a beam identifier that can be used by the multicast service, and a mapping relationship between the reported resources. The reporting resource is used to report the multicast service that the device is expected to use and the corresponding beam identifier;

When the device determines that it is desired to receive the multicast service, the device reports the network device by using the reported resource corresponding to the beam identifier.
The method of claim 9 wherein the method further comprises:

The device acquires service control information sent by the network device, where the service control information includes: a service identifier of a multicast service being transmitted.
The method according to claim 10, wherein the service control information further comprises: configuration information of a service transmission resource of the multicast service,

The service transmission resource includes at least one of the following: a radio network temporary identifier RNTI corresponding to the multicast service, time information corresponding to the multicast service, and a physical control channel corresponding to the multicast service;

The method further includes:

The device receives the multicast service sent by the network device by using the service transmission resource.
The method according to any one of claims 9 to 11, wherein the method further comprises:

When the reporting configuration information is used to indicate a mapping relationship between the service identifier, the beam set, and the reporting resource of the multicast service, the device measures the beam in the beam set, and generates a measurement result of the at least one beam. ;

The device determines whether it is desired to receive the multicast service on the at least one beam.
The method according to claim 12, wherein the reporting resource comprises: an uplink resource dedicated to the device;

The device reports to the network device by using the report resource corresponding to the beam identifier, including:

The device sends, to the network device, report information indicating a measurement result of the at least one beam, by using the device-specific uplink resource.
The method according to any one of claims 9 to 13, wherein the reporting configuration information comprises: a preamble and a time-frequency resource,

The device reports to the network device by using the report resource corresponding to the beam identifier, including:

The device sends the preamble to the network device on a time-frequency resource corresponding to the beam identifier.
The method according to any one of claims 9 to 14, wherein the device reports the network device by using the report resource corresponding to the beam identifier, including:

The device periodically reports to the network device in a first period, where the first period is a predefined period, or a period obtained from the reported configuration information.
A communication device, comprising:

a processing module, configured to determine a report configuration information, where the report configuration information is used to indicate a service identifier of a multicast service being transmitted, a beam identifier that can be used by the multicast service, and a mapping relationship between the reported resources, where The reporting resource is used to report the multicast service that the terminal device desires to use and the corresponding beam identifier;

And a sending module, configured to send the reporting configuration information.
The communication device according to claim 16, wherein the sending module is further configured to send service control information, where the service control information comprises: a service identifier of the multicast service.
The communication device according to claim 17, wherein the service control information further comprises: configuration information of a service transmission resource of the multicast service, the service transmission resource comprising at least one of the following resources: The radio network temporary identifier RNTI corresponding to the multicast service, the time information corresponding to the multicast service, and the physical control channel resource corresponding to the multicast service.
The communication device according to any one of claims 16 to 18, further comprising: a receiving module, wherein

The processing module is further configured to control the receiving module to detect the reported resource, and determine, according to the detection result, a multicast service that the terminal device desires to receive and a beam identifier that can be used by the terminal device.
The communication device according to claim 19, wherein the processing module is further configured to: after determining, according to the detection result, the multicast service that the terminal device desires to receive and the beam identifier that can be used by the terminal device, the control device The transmitting module schedules the multicast service that the terminal device desires to receive on a beam corresponding to the beam identifier that can be used by the terminal device.
The communication device according to any one of claims 19 to 20, wherein the reporting is performed when the reporting configuration information is used to indicate a mapping relationship between a service identifier, a beam set, and a reported resource of a multicast service. The resource includes: an uplink resource dedicated to the terminal device;

The processing module is further configured to control, by the receiving module, the measurement result reported by the terminal device for the at least one beam in the beam set on the dedicated uplink resource.
The communication device according to any one of claims 19 to 21, wherein the reporting configuration information further includes: a preamble and a time-frequency resource reported by the terminal device;

The processing module is further configured to control the receiving module to detect the preamble sent by the terminal device on the time-frequency resource.
The communication device according to any one of claims 16 to 22, wherein the reporting configuration information further comprises: the first period used by the terminal device to periodically report.
A communication device, comprising:

The processing module is configured to obtain the report configuration information sent by the network device, where the report configuration information is used to indicate a service identifier of the multicast service being transmitted, a beam identifier that can be used by the multicast service, and a report resource a mapping relationship, where the reporting resource is used to report a multicast service that the communication device desires to use and a corresponding beam identifier;

And a sending module, configured to report the reported resource to the network device by using the reporting resource corresponding to the beam identifier when the communication device determines that the multicast service is expected to be received.
The communication device according to claim 24, wherein the processing module is further configured to acquire service control information sent by the network device, where the service control information comprises: a service identifier of a multicast service being transmitted.
The communication device according to claim 25, wherein the service control information further comprises: configuration information of a service transmission resource of the multicast service,

The service transmission resource includes at least one of the following: a radio network temporary identifier RNTI corresponding to the multicast service, time information corresponding to the multicast service, and a physical control channel corresponding to the multicast service;

The communication device further includes: a receiving module, configured to receive, by using the service transmission resource, a multicast service sent by the network device.
The communication device according to any one of claims 24 to 26, wherein the processing module is further configured to: when the reporting configuration information is used to indicate a service identifier, a beam set, and a reporting resource of the multicast service In the case of a mapping relationship, measurements are made on the beams in the set of beams and a measurement of at least one beam is generated; determining whether the multicast service is desired to be received on the at least one beam.
The communication device according to claim 27, wherein the reporting resource comprises: an uplink resource dedicated to the communication device;

The sending module is further configured to send, to the network device, report information for indicating a measurement result of the at least one beam, by using an uplink resource dedicated to the communication device.
The communication device according to any one of claims 24 to 28, wherein the reporting configuration information comprises: a preamble and a time-frequency resource,

The sending module is further configured to send the preamble to the network device on a time-frequency resource corresponding to the beam identifier.
The communication device according to any one of claims 24 to 29, wherein the transmitting module is further configured to perform periodic reporting to the network device in a first period, where the first period is The defined period, or the period obtained from the reported configuration information.
A computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement the communication method according to any one of claims 1 to 8.
A computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement the communication method according to any one of claims 9 to 15.
A communication device comprising a memory, a processor, and a program stored on the memory and executable on the processor, wherein the processor executes the program to implement any of claims 1 to 8. A communication method as described.
A communication device comprising a memory, a processor, and a program stored on the memory and operable on the processor, wherein the processor executes the program to implement any of claims 9-15 A communication method as described.
A communication system comprising the communication device of one of claims 16 to 23, and the communication device of one of claims 24 to 30.