WO2020259611A1

WO2020259611A1 - Communication method and apparatus, and storage medium

Info

Publication number: WO2020259611A1
Application number: PCT/CN2020/098189
Authority: WO
Inventors: 胡丹; 官磊
Original assignee: 华为技术有限公司
Priority date: 2019-06-28
Filing date: 2020-06-24
Publication date: 2020-12-30
Also published as: CN112152761A; CN112152761B

Abstract

Provided are a communication method and apparatus, and a storage medium. The method comprises: receiving group information from a network device, and receiving first data from the network device; and determining a first group to which the first data belongs, and determining, according to indication information corresponding to the first group, whether feedback information needs to be sent to the network device, wherein the group information indicates a first identifier comprised in one or more groups, the group information further comprises indication information corresponding to the groups, and the first group is one of the one or more groups. After first data belonging to a group that does not need to send feedback information to a network device is received, there is no need to send any feedback information to the network device no matter whether the first data is parsed correctly or not, such that reduction of the feedback overhead of a communication system is facilitated.

Description

Communication method, device and storage medium

Cross references to related applications

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 201910579265.4, and the application name is "a communication method, device, and storage medium" on June 28, 2019. The entire content is incorporated herein by reference. Applying.

Technical field

This application relates to the field of communication technology, and in particular to a communication method, device and storage medium.

Background technique

The International Telecommunication Union (ITU) defines a variety of application scenarios for the fifth generation (5G) and future mobile communication systems, such as: enhanced mobile broadband (eMBB) , High-reliable and low-latency communications (ultra reliable and low latency communications, URLLC) and massive machine type communications (mMTC).

In different application scenarios, a hybrid automatic repeat request (HARQ) feedback mechanism is usually used to ensure the reliability of data transmission between network equipment and terminal equipment. Since the HARQ feedback mechanism can request the network device to retransmit when the data transmission fails, the reliability of the data transmission can be guaranteed. Moreover, in the HARQ feedback mechanism, the sender will retransmit the data only when it receives the NACK feedback from the receiver, thereby reducing the overall resource consumption of data transmission. However, when a large number of terminal devices in the communication system simultaneously send feedback information to the network device, the communication system overhead will be very large. For example, in the 3 ^rd generation partnership project (3 ^rd generation partnership project, 3GPP) proposed in the multimedia broadcast multicast service (multimedia broadcast multicast service, MBMS), if all terminal equipment sends feedback information to the network equipment, causing system overhead It is also very large. Therefore, currently MBMS does not support HARQ feedback mechanism.

Summary of the invention

The present application provides a communication method, device and storage medium, which are used to reduce the feedback overhead of the communication system.

In the first aspect, the present application provides a communication method. The method includes receiving group information from a network device, and receiving first data from the network device, determining a first group to which the first data belongs, and determining the first group corresponding to the first group according to the The indication information determines whether it is necessary to send feedback information to the network device, where the first group is one of one or more groups, the group information indicates the first identifier included in the one or more groups, and the group information also includes an indication corresponding to each group information. It should be understood that the first identifier may identify one service or a group of services.

The method may be executed by a communication device, which may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip system. Exemplarily, the communication device is a terminal device.

Based on this solution, by grouping multiple services into groups and configuring instructions for each grouping, it is possible to realize that some groups need to send feedback information to the network device, that is, the feedback mechanism is turned on, and some services do not need to send feedback information to the network device, that is, they are not turned on. (Or closed) feedback mechanism. After receiving the first data in a packet that does not have the feedback mechanism turned on, no matter whether the first data is correctly parsed, there is no need to send any feedback information to the network device, which helps to reduce the feedback overhead of the communication system. For example, when a service with high service transmission reliability requirements is divided into a group, and a feedback mechanism is enabled for the group configuration, if possible, the high reliability requirements for the transmission of service data in the group can be guaranteed.

The indication information in this application includes but is not limited to any of the following six situations.

In case 1, the indication information includes the first type of parameter, where the first type of parameter is used to indicate feedback or no feedback.

In case 2, the indication information includes a second type of parameter, where the second type of parameter is used to indicate the threshold of the feedback decision parameter. When it is determined that the value of the feedback decision parameter corresponding to the first data meets the threshold of the feedback decision parameter, the feedback information is sent to the network device; or, when it is determined that the value of the feedback decision parameter corresponding to the first data does not meet the threshold of the feedback decision parameter, Do not send feedback information to network devices. It should be understood that satisfaction includes, but is not limited to, greater than, less than, greater than or equal to, less than or equal to, within a certain range, etc.

Optionally, the feedback decision parameter includes any one or a combination of any of the following: distance, reference signal receiving power (RSRP), signal to interference plus noise ratio, SINR). That is, the feedback decision parameter can be distance, or RSRP, or SINR, or distance and RSRP, or distance and SINR, or RSRP and SINR, or distance, RSRP and SINR. It should be noted that distance can refer to geographic distance. It should be noted that when the feedback decision parameter is distance, it is determined that the current actual distance (that is, the value of the feedback decision parameter corresponding to the first data) is fed back within the distance range (the threshold of the feedback decision distance), which may be the default; or It can be notified by the network device (for example, it can be notified in advance, or sent along with the instruction information); or it can be pre-arranged with the network device, or it can be predefined by the protocol. Similarly, when it is determined that the current actual distance is less than the threshold of the feedback decision distance, or the feedback is greater than the threshold of the feedback decision distance, the feedback can be the default; or it can be notified by the network device; or it can be pre-arranged with the network device , Or it can be predefined by the protocol. The current RSRP value (that is, the value of the feedback decision parameter corresponding to the first data) is less than the RSRP threshold. No feedback, or greater than the RSRP threshold. Feedback can be the default, or it can be notified in advance by the network device, or it can be an agreement. pre-defined. When the feedback decision parameter is SINR, determine that the current SINR value (that is, the value of the feedback decision parameter corresponding to the first data) is less than the SINR threshold. No feedback, and the threshold feedback greater than the SINR can be the default or the network device may notify in advance , Or it can be predefined by the protocol.

In case 3, the indication information includes the first type of parameter and the second type of parameter, where the first type of parameter and the second type of parameter can be referred to the introduction of the above case 1 and case 2.

When the indication information is the above situation 3, the indication information corresponding to the first group may include the first type parameter and the second type parameter, and it is determined that the first type parameter corresponding to the first group to which the first data belongs represents feedback and the first data When the value of the corresponding feedback decision parameter meets the threshold of the feedback decision parameter, the feedback information is sent to the network device.

In a possible implementation, the first identifier may be a temporary mobile group identity (TMGI), a group-radio network temporary identifier (G-RNTI), and a multicast control channel (Temporary Mobile Group Identity, TMGI) Multicast control channel, MCCH), or single cell multicast control channel (SC-MCCH).

It should be understood that when the communication device performing the above method is in the radio resource control (radio resource control, RRC) connected state, the first identifier may be G-RNTI; when the communication device performing the above method is in the idle (IDLE) state, the first identifier may be G-RNTI; An identifier can be TMGI, SC-MCCH or MCCH. Specifically, optionally, whether the first identifier is SC-MCCH or MCCH may be determined by the transmission mode of MBMS. For example, when MBMS is a multimedia broadcast single frequency network (multimedia broadcast single frequency network, MBSFN) transmission mode, the first identifier It is MCCH; when MBMS is a single cell point-to-multipoint (SC-PTM) transmission mode, the first identifier is SC-MCCH.

In order to further reduce the feedback overhead of the communication system, when it is determined that the feedback information needs to be sent to the network device and it is determined that the feedback information satisfies the feedback condition, the feedback information is sent to the network device, where the feedback condition is: the first data is not correctly parsed.

In this application, the feedback information may be HARQ feedback information, or CSI, or HARQ feedback information and CSI. The specific feedback information may be notified by the network device, or agreed in advance by the network device, or it may be default, or it may be predefined through a protocol.

In a second aspect, the present application provides a communication method. The method includes configuring indication information for each group and sending group information to a terminal device. The group information indicates a first identifier included in one or more groups, and the group information further includes the corresponding Instructions. It should be understood that one or more first identifiers may be included in a group.

The method may be executed by a communication device, which may be a communication device or a communication device capable of supporting the communication device to implement the functions required by the method, such as a chip system. Exemplarily, the communication device is a network device.

Based on this solution, by grouping multiple services and configuring instruction information for each group, some groups need to send feedback information, that is, the feedback mechanism is turned on; some services do not need to send feedback information, that is, the feedback is not opened (or closed). mechanism. After the terminal device receives the first data belonging to the packet for which the feedback mechanism is not enabled, no matter whether the first data is correctly parsed, it does not need to send any feedback information. In this way, it helps to reduce the feedback overhead of the communication system (control information except useful data is called overhead). For example, when a service with high service transmission reliability requirements is divided into a group, and a feedback mechanism is enabled for the group configuration, if possible, the high reliability requirements for the transmission of service data in the group can be guaranteed.

Each grouping can be obtained by grouping multiple services by the network device, or directly storing the grouped groups in the network device.

In a possible implementation manner, multiple services may be grouped according to their service characteristics and/or service types. In other words, multiple services can be grouped according to service characteristics, multiple services can be grouped according to service types, or multiple services can also be grouped according to service types and service characteristics. Among them, service characteristics include any one or a combination of service reliability requirements, service coverage capabilities, service delay requirements, service data volume, service mobility requirements, and service priorities; service types include enhanced mobile broadband eMBB, high-reliability and low-latency communication URLLC, massive machine-type communication mMTC, vehicle to everything (V2X), Internet of things (IoT).

In a possible implementation manner, the first identifier is TMGI, G-RNTI, MCCH, or SC-MCCH. It should be understood that when the terminal device is in the radio resource control (RRC) connection state, the first identifier may be G-RNTI; when the terminal device is in the IDLE state, the first identifier may be TMGI, SC-MCCH Or MCCH. Specifically, optionally, whether the first identifier is SC-MCCH or MCCH may be determined by the transmission mode of MBMS. For example, when MBMS is a multimedia broadcast single frequency network (multimedia broadcast single frequency network, MBSFN) transmission mode, the first identifier It is MCCH; when MBMS is a single cell point-to-multipoint (SC-PTM) transmission mode, the first identifier is SC-MCCH.

In this application, the indication information may include the first type of parameters, or the indication information may include the second type of parameters, or the indication information may include the first type of parameters and the second type of parameters. Among them, the first type of parameter is used to indicate feedback or no feedback; the second type of parameter is used to indicate the threshold of the feedback decision parameter, and the threshold of the feedback decision parameter is used to determine that the value of the feedback decision parameter corresponding to the first data satisfies the feedback decision When the threshold of the parameter, the feedback information is sent; or, when it is determined that the value of the feedback decision parameter corresponding to the first data does not meet the threshold of the feedback decision parameter, the feedback information is not sent.

Or the indication information may also include a preset condition, and the preset condition may be feedback when the threshold is greater than the SINR, or feedback when the threshold is greater than the RSRP, or feedback when it falls within a certain distance range (ie, the distance threshold), and so on.

In a possible implementation manner, the feedback decision parameter includes any one or a combination of any one of distance, RSRP, and SINR.

In this application, the feedback information may be HARQ feedback information, or CSI, or HARQ feedback information and CSI. The specific feedback information may be specified and notified to the terminal device, or pre-arranged with the terminal device, or it may be the default of the terminal device, or it may be predefined through a protocol.

In a possible implementation manner, the grouping information can be sent to the terminal device through high-level signaling; or, the grouping information can also be sent to the terminal device through a system message.

In a third aspect, the present application provides a communication device that has the function of implementing the network device or terminal device in the above-mentioned embodiment. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units or units corresponding to the above-mentioned functions.

In a possible implementation manner, the communication device includes: a processor configured to support the communication device to perform corresponding functions of the network device in the communication method shown above. The communication device may also include a memory, and the storage may be coupled with the processor, which stores program instructions and data necessary for the communication device. Optionally, the communication device further includes a transceiver, and the transceiver is used to support communication between the communication device and the terminal device. Among them, the transceiver can be an independent receiver, an independent transmitter, a transceiver with integrated transceiver functions, or an interface circuit.

In a possible implementation, the communication device may be a network device, or a component that can be used in a network device, such as a chip or a chip system or a circuit.

In another possible implementation manner, the communication device includes: a processor configured to support the communication device to perform corresponding functions of the terminal device in the communication method shown above. The communication device may also include a memory, and the storage may be coupled with the processor, which stores program instructions and data necessary for the communication device. Optionally, the communication device further includes a transceiver, and the transceiver is used to support communication between the communication device and network equipment and the like. Among them, the transceiver can be an independent receiver, an independent transmitter, a transceiver with integrated transceiver functions, or an interface circuit.

In a possible implementation, the communication device may be a terminal device, or a component that can be used in a terminal device, such as a chip or a chip system or a circuit.

In a fourth aspect, the present application provides a communication device, which is used to implement any one of the foregoing first aspect or the first aspect, or is used to implement any one of the foregoing second or second aspects, including The corresponding functional units are respectively used to implement the steps in the above method. The function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above-mentioned functions.

In a possible implementation manner, the structure of the communication device includes a processing unit and a transceiving unit, and these units can perform corresponding functions in the foregoing method examples. For details, refer to the detailed description in the method examples, and details are not repeated here.

In a fifth aspect, an embodiment of the present application provides a communication system, which includes a terminal device and a network device. Wherein, the terminal device may be used to execute any method in the first aspect or the first aspect, and the network device may be used to execute any method in the second aspect or the second aspect.

In a sixth aspect, the present application provides a chip system including a processor. Optionally, it may further include a memory, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the device installed with the chip system executes the first aspect to the second aspect and possible implementations thereof Any method in.

In a seventh aspect, an embodiment of the present application provides a computer storage medium. The computer storage medium stores instructions, which when run on a computer, cause the computer to execute the method in the first aspect or any possible implementation of the first aspect , Or make the computer execute the method in the second aspect or any possible implementation of the second aspect.

In an eighth aspect, the embodiments of the present application provide a computer program product containing instructions that, when run on a computer, cause the computer to execute the method in the first aspect or any possible implementation of the first aspect, or cause the computer to execute The second aspect or any possible implementation of the second aspect.

Description of the drawings

Figure 1 is a schematic diagram of a communication system architecture provided by this application;

Figure 2 is a schematic diagram of an applicable scenario provided by this application;

FIG. 3 is a schematic flow chart of a communication method provided by this application;

FIG. 4 is a schematic diagram of a mapping relationship between channels provided by this application;

FIG. 5 is a schematic diagram of another mapping relationship between channels provided by this application;

FIG. 6 is a schematic structural diagram of a communication device provided by this application;

FIG. 7 is a schematic structural diagram of a communication device provided by this application;

FIG. 8 is a schematic structural diagram of a terminal device provided by this application;

FIG. 9 is a schematic structural diagram of a network device provided by this application.

Detailed ways

In order to make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

Fig. 1 exemplarily shows a schematic diagram of the architecture of a communication system provided by the present application. The communication system may include network equipment and terminal equipment. In FIG. 1, a network device 101 and two terminal devices 102 are included as an example for illustration. Among them, the network device 101 can communicate with the terminal device 102 in a wireless manner, mainly using Uu air interface transmission. The terminal devices 102 can communicate in a wireless manner, mainly using sidelink (SL) air interface transmission, which can also be called device-to-device (D2D) communication, for example In the V2X communication system, V2V, V2P, and V2I communicate directly through side-line links. The side-line link is defined for direct communication between communication equipment and communication equipment, that is to say, between communication equipment and communication equipment. Communication does not need to be forwarded through network equipment.

Among them, 1) the communication between network equipment and terminal equipment is mainly the transmission of uplink signals and the transmission of downlink signals. For the transmission of downlink signals, the sending end is a network device, and the corresponding receiving end is a terminal device. For the transmission of uplink signals, the sending end is a terminal device, and the corresponding receiving end is a network device. The communication between the terminal device and the terminal device is mainly D2D signal transmission, the transmitting end is the terminal device, and the corresponding receiving end is also the terminal device. This application does not limit the signal transmission direction.

2) The communication between the network equipment and the terminal equipment, and the communication between the terminal equipment and the terminal equipment can communicate through a licensed spectrum (licensed spectrum), can also communicate with an unlicensed spectrum (unlicensed spectrum), and can also communicate through a licensed spectrum and Unlicensed spectrum for communication. For example, a network device and a terminal device can use a licensed spectrum and an unlicensed spectrum for communication, and a terminal device and a terminal device can also use a licensed spectrum and an unlicensed spectrum for communication. Among them, the spectrum below 6G can be used, the spectrum above 6G can also be used, or the spectrum below 6G and above 6G can also be used at the same time. This application applies to network equipment and terminal equipment, as well as between terminal equipment and terminal equipment. The spectrum resources are not limited.

3) Terminal devices, including devices that provide users with voice and/or data connectivity, such as handheld devices with wireless connection functions, or processing devices connected to wireless modems. The terminal device can communicate with the core network via a radio access network (RAN), and exchange voice and/or data with the RAN. The terminal equipment may include user equipment (UE), wireless terminal equipment, mobile terminal equipment, device-to-device communication (device-to-device, D2D) terminal equipment, vehicle-to-everything (V2X) Terminal equipment, machine-to-machine/machine-type communications (M2M/MTC) terminal equipment, Internet of things (IoT) terminal equipment, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile station, MS), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), mobile terminal (mobile terminal, MT), virtual reality (virtual reality, VR) terminal, augmented reality (augmented reality, AR) terminal, wireless terminal in industrial control (industrial control), autonomous driving (self driving) Wireless terminals in the smart city, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety, wireless terminals in smart cities, and smart cities. The wireless terminal, user agent, or user device in a smart home. For example, it may include mobile phones (or "cellular" phones), computers with mobile terminal equipment, portable, pocket-sized, handheld, and computer-built mobile devices. For example, personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, personal digital assistants (personal digital assistants, etc.) PDA) and other equipment. It also includes restricted devices, such as devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. Examples include barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), laser scanners and other information sensing equipment.

As an example and not a limitation, in this application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is a general term for using wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, and need to cooperate with other devices such as smart phones. Use, such as various smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

4) Network equipment, for example, includes access network (access network, AN) equipment, which can also be referred to as wireless access network equipment, and is used to connect terminal equipment to equipment in the wireless network. For example, a base station (for example, an access point) may refer to a device that communicates with wireless terminal equipment through one or more cells at an air interface in an access network, for example, in a vehicle-to-everything (V2X) technology The access network equipment may be a roadside unit (RSU). The base station can be used to convert the received air frame and Internet Protocol (IP) packets to each other, as a router between the terminal device and the rest of the access network, where the rest of the access network may include an IP network. The RSU can be a fixed infrastructure entity that supports V2X applications, and can exchange messages with other entities that support V2X applications. The access network equipment can also coordinate the attribute management of the air interface. Exemplarily, the access network equipment may include the LTE system or the evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in the long term evolution-advanced (LTE-A), or may also include The fifth generation of mobile communication technology (the 5th generation, 5G) NR system in the next generation node B (next generation node B, gNB), transmission reception node (transmission reception point, TRP) (also known as the transceiver node), baseband processing Unit (building base band unit, BBU) and radio frequency unit (Radio Remote Unit, RRU), BBU and active antenna unit (AAU), or may also include cloud access network (cloud radio access network, Cloud RAN) ) Centralized unit (CU) and distributed unit (DU) in the system, or may also include the access point in the wireless fidelity (Wi-Fi) system, or may also include Radio network controller (RNC), network equipment controller (base station controller, BSC), network equipment transceiver station (BTS), home network equipment (for example, home evolved NodeB, or Home Node B) , HNB), or may also include base stations, small stations, and micro stations in the future communication network. The embodiments of the present application are not limited.

Of course, network equipment may also include core network equipment, wireless relay equipment, and backhaul equipment. However, because the technical solutions provided by the embodiments of this application mainly involve access network equipment, in the following text, unless otherwise specified, The "network equipment" described later refers to the access network equipment.

The various terminal devices and network devices described above can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted. If it is located on a vehicle (for example, placed in a vehicle or installed in a vehicle), it can be regarded as an on-board terminal device, which is also called an on-board unit (OBU), for example. It can also be deployed on the water, or can also be deployed on aircraft, balloons and satellites in the air, which is not limited in this application.

In this application, the communication system may be a global system for mobile communication (GSM), code division multiple access (CDMA) system, and wideband code division multiple access (WCDMA) system, Worldwide Interoperability for Microwave Access (WiMAX) systems, long term evolution (LTE) systems, 5G communication systems (such as new radio (NR) systems, communication systems that integrate multiple communication technologies ( For example, a communication system integrating LTE technology and NR technology) may also be other communication systems, such as a public land mobile network (PLMN) system, or other communication systems that may appear in the future, which is not limited in this application.

In this application, the communication system supports the HARQ feedback mechanism. The HARQ feedback mechanism specifically refers to: if the terminal device successfully receives the service data from the network device, the terminal device can perform HARQ-ACK feedback on the uplink, that is, the feedback information sent by the terminal device to the network device is ACK; if the terminal device If the service data from the network device is not successfully received (such as packet loss, decoding failure, etc.), the terminal device performs HARQ-NACK feedback on the uplink, that is, the feedback information sent by the terminal device to the network device is NACK. When the network device receives the NACK feedback from the terminal device and the number of retransmissions has not reached the maximum number of retransmissions, the network device can then resend the last transmitted service data to the terminal device, and the terminal device can retransmit the received service data Combine with business data that has not been successfully received before to improve reception performance. In other words, the HARQ feedback mechanism can request retransmission when the transmission fails, which can improve the reliability of data transmission.

The HARQ feedback mechanism supports one initial transmission and at least one retransmission. In the initial transmission and subsequent retransmission of a service data, the specific transmission is based on the content of the service data after data channel coding. For example, in the LTE system, the data channel adopts Turbo coding, and the different coded content of the same service data can be indicated by the redundancy version (RV) sequence number in the control information. For another example, the data channel of the NR system can use low density parity check code (LDPC) encoding, and the NR system supports data channel transmission based on link adaptation, that is, according to different channel conditions Choose different coding and modulation methods (including but not limited to code rate and modulation order). Due to the difference in coding characteristics, the data channel link adaptation method based on LDPC codes can be different from the method based on Turbo codes. In the NR system, the different encoded content of the same service data can be indicated by the redundancy version serial number in the control information, or by other indication information, such as the redundancy version of the high-level parameter configuration. It should be understood that the encoded information of the service data sent in the initial transmission and the retransmission may be the same or different.

It should be noted that a terminal device can support at least one HARQ process. After a certain service data of a HARQ process is successfully received, the memory (for example, soft buffer) used for storing the transmission will be cleared to Prepare to use the HARQ process to receive new service data. In a HARQ process, the network equipment can indicate whether the service data carried this time is the initial transmission or retransmission when scheduling. Exemplarily, in the LTE system, one HARQ process can carry one or two service data at the same time. When two service data are carried, the two service data can adopt different coding and modulation modes. In one transmission, two service data can be both new transmission, the same retransmission, or one new transmission and the other retransmission.

The form and quantity of the network equipment and terminal equipment shown in FIG. 1 are only for example, and do not constitute a limitation to this application.

Before introducing the method of the present application, based on the communication system architecture introduced in FIG. 1, the application scenarios involved in the present application will be further introduced and explained in order to facilitate understanding of the solution. It should be noted that the system architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation to the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know With the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

As shown in Figure 2, an applicable scenario provided for this application. In this applicable scenario, the terminal device 201 can receive service data from the network device 202, the network device 203, and the network device 204. The service types or service characteristics of the service data sent by different network devices may be different, and the same network device may also send different types of service data. For example, the network device 202 can transmit service data whose service type is URLLC service to the terminal device 201, the network device 203 can transmit business data whose service type is IoT service to the terminal device 201, and the network device 204 can transmit service data to the terminal device 201. It is the business data of eMBB business. Among them, URLLC services mainly have ultra-high reliability (block error rate (BLER) in terms of reliability is at least 99.999%), low latency (end-to-end latency needs to be less than 1ms), and less data transmission As well as sudden, it is mainly used in wireless control in industrial manufacturing or production processes, motion control of unmanned vehicles and unmanned aircraft, and tactile interaction applications such as remote repair and remote surgery. IoT services occupies a narrow bandwidth, low power consumption, wide coverage, and can be repeatedly sent, that is, they can guarantee certain reliability by themselves. The eMBB service mainly has the characteristics of large transmission data volume and high transmission rate, and is mainly used in ultra-high-definition video, augmented reality (AR), virtual reality (virtual reality, VR), etc. In this scenario, if the terminal device sends feedback information to the network device after receiving the service data, it will cause the problem of relatively large communication system overhead.

In view of the foregoing technical problems, the technical solutions provided by the embodiments of the present application are described below in conjunction with the accompanying drawings.

Fig. 3 exemplarily shows a communication method provided by an embodiment of the present application. In the following introduction process, it is taken as an example that the communication method is applied to the network architecture shown in any one of FIGS. 1 to 2. In addition, the method can be executed by two communication devices, such as a first communication device and a second communication device, where the first communication device can be a network device or can support the network device to implement the functions required by the method. The communication device or the first communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, and of course it may also be other communication devices, such as a chip system. The same is true for the second communication device. The second communication device may be a network device or a communication device capable of supporting the functions required by the network device to implement the method, or the second communication device may be a terminal device or capable of supporting the terminal device to implement the method. The communication device with the required functions can of course also be other communication devices, such as a chip system. And there are no restrictions on the implementation of the first communication device and the second communication device. For example, the first communication device may be a network device, the second communication device is a terminal device, or the first communication device is a network device and the second communication device is a terminal device. It is a communication device that can support the terminal device to realize the functions required by the method, or the first communication device is a terminal device, and the second communication device is a network device.

For ease of introduction, in the following, the method executed by the network device and the terminal device is taken as an example. As shown in Figure 3, the method includes the following steps.

Step 301: The network device configures indication information for each group.

This step 301 is optional.

Each packet in the network device may be obtained by the network device grouping multiple services, or each packet that has been grouped may be directly stored in the network device, which is not limited in this application.

The network equipment can group multiple services in different ways. The following three exemplary implementation ways are described in detail.

Implementation mode one, the network device can group multiple services according to service characteristics. It can also be understood that the services divided into a group have relatively similar service characteristics. Among them, the service characteristics include but are not limited to: service reliability requirements, service coverage capabilities, service delay requirements, service data volume, service mobility requirements, or service priorities.

It should be noted that when a network device groups multiple services according to service characteristics, it can group according to one service characteristic, or group according to a combination of multiple service characteristics, which is not limited in this application.

The following describes in detail the grouping of network devices according to service characteristics in combination with specific examples.

Example 1, based on business coverage capabilities.

The network equipment can group multiple services according to the service coverage capabilities in the service characteristics. For example, you can group services with stronger coverage capabilities into one group, and group services with weaker coverage capabilities into another group. Exemplarily, due to the wide coverage of IoT services and MTC services, that is, IoT services and MTC services have strong coverage capabilities, the IoT services and MTC (such as eMTC, or mMTC) services can be grouped into one group, and the remaining services Divide into another group. For another example, the coverage capacity can also be divided into three levels: high, medium, and low, and one level corresponds to one group.

Example 2: Based on business reliability requirements.

The network equipment can group multiple services according to the service reliability requirements in the service characteristics. For example, divide the services with higher reliability requirements into one group, and divide the services with looser reliability requirements into another. Exemplarily, services with reliability requirements greater than 99.999% (such as URLLC services) can be divided into one group, and the remaining services (such as eMBB services and other services) can be divided into another group.

Example three, based on business coverage and business reliability requirements.

The network equipment can group multiple services according to the combination of service coverage capabilities and service reliability requirements in service characteristics. For example, divide the services with strong service coverage and high service reliability requirements into one group, and divide the remaining services into another group. For another example, divide the services with strong service coverage and low service reliability requirements into one group, and divide the remaining services into another group. For another example, divide the services with weaker service coverage and higher service reliability requirements into one group, and divide the remaining services into another group. For another example, group the services with weaker service coverage and lower service reliability requirements into one group, and divide the remaining services into another group. In other words, when grouping is performed based on the combination of multiple services, the network device can decide which service characteristics to combine according to actual needs, which is not limited in this application.

Implementation mode two, network equipment can group multiple services according to service types. It can also be understood that the services grouped into a group have the same service type.

In this application, service types include but are not limited to: eMBB, URLLC, mMTC, V2X, and IoT. For example, you can group the services of the eMBB service type into one group, and group the rest of the services into another group; or group the services of the V2X service type into one group, and group the remaining services into another group. ; Or you can group the services of the eMBB service type into one group, group the services of the V2X service type into another group, group the services of the IoT service type into another group, and group the rest of the services into another group In the group; or each business type corresponds to a group, etc.

Implementation mode three, network equipment groups multiple services according to service types and service characteristics. It can also be understood that the services grouped into a group have the same service type and similar service characteristics.

Exemplarily, the network device may group the services whose service type belongs to URLLC and whose reliability requirement is higher than 99.9999% into one group, and divide the service whose service type belongs to URLLC and whose reliability requirement is lower than 99.9999% into another group. It can also be understood that there may be differences between business characteristics of business data belonging to the same business type. The network device groups multiple services according to service types and service characteristics. In this way, the service data scored in a group can have more similar characteristics, and each group can be more refined, thereby helping to improve feedback efficiency.

Implementation mode four, the network equipment can also divide a business into a group. That is, one business corresponds to one group. In this way, the network device configures the indication information for each group, that is, the network device configures the indication information for each service. In this way, when a service has multiple downlink transmissions, the network device can configure an indication information for these 5 downlinks, and there is no need to indicate whether to feedback for each link, so that the sending feedback can be improved more accurately Information efficiency.

The above four grouping methods are just examples, and this application does not limit how to group. In addition, the network device chooses the above implementation method to group, which can be selected by the network device. For example, the network device can be selected randomly, or the network device can also be selected based on certain factors. For example, the network device needs to determine that the terminal device receives a certain Or in the case of service data of certain service characteristics, the network device can choose the above realization method to group; or, which realization method chooses to group by the above can also be predefined by the protocol. This application does not restrict this.

The foregoing groups include the first identifier, and the first identifier in each group is different, and it can also be understood that the group is embodied in a manner of different first identifiers. Among them, the first identifier may be a service identifier, and the service identifier may distinguish different services. In a possible implementation manner, the first identifier may identify a service. In another possible implementation manner, the first identifier may identify a group of services. In order to facilitate the understanding of the solution, it is described as an example that one first identifier can identify one service, that is, different services can be distinguished by different first identifiers. In other words, a first identifier can identify a business. Exemplarily, the first identifier may be TMGI, or G-RNTI, or MCCH, or SC-MCCH. A TMGI is a unique identifier of a service (for example, a broadcast-multicast service), that is, TMGI can be used to distinguish different services; further, TMGI is composed of two domains, PLMN ID and service ID (service ID). A service is configured with one SC-MCCH in a specific cell or with one MCCH in an MBSFN area, that is, either SC-MCCH or MCCH can uniquely identify a service. It should be noted that TMGI, SC-MCCH, or MCCH can be used to identify services when the terminal device is in an IDLE state. When the terminal device is in the radio resource control (RRC) connection state, that is, after the terminal device and the network device are connected, the network device can assign a service identifier to each service, such as G-RNTI, that is, the terminal device is in RRC In the connected state, the transmitted service can be identified by G-RNTI; further, G-RNTI is a scrambling code for MTCH or SC-MTCH scrambling.

Illustratively, group #1 includes three first identifiers (ie, first identifier 1, first identifier 2, and first identifier 3), and group #2 includes two first identifiers (ie, first identifier 4 and The first identifier 5) is taken as an example. If the first identifier is TMGI, group #1 includes TMGI-1, TMGI-2, and TMGI-3, and group #2 includes TMGI-4 and TMGI-5. Or the formation can also be group #1={TMGI-1, TMGI-2, TMGI-3}, group #2={TMGI-4, TMGI-5}, this form is only exemplary, and other possible forms are also For example, for each first identifier, the group to which each first identifier belongs is indicated, which is not limited in this application. Similarly, if the first identifier is G-RNTI, group #1 = {G-RNTI-1, G-RNTI-2, G-RNTI-3}, group #2 = {G-RNTI-4, G-RNTI -5}, if the first identifier is SC-MCCH, group #1 = {SC-MCCH-1, SC-MCCH-2, SC-MCCH-3}, group #2 = {SC-MCCH-4, SC- MCCH-5}, if the first identifier is MCCH, group #1={MCCH-1, MCCH-2, MCCH-3}, group #2={MCCH-4, MCCH-5}.

For the MBMS service, when the first identifier is TMGI, since the TMGI has 5 to 8 bits, that is, the minimum is 5 bits, 2 ⁵ =32 services can be identified; the maximum is 8 bits, and 2 ⁸ =256 services can be identified. In other words, the number of packets is related to the bits of TMGI. If the bit of TMGI is 5, the maximum number of packets is 32; if the bit of TMGI is 8, the maximum number of packets is 256.

Based on the foregoing groups, the network device can configure indication information for each group. In this application, the instruction information may include, but is not limited to, one or a combination of the following situations.

In case 1, the indication information may include the first type of parameter, and the first type of parameter is used to indicate feedback or no feedback.

In this case 1, the indication information may be a feedback switch. Specifically, it can include two states: one is on and the other is off. Exemplarily, the opening can be represented by the high-level parameter being ON, and the high-level parameter being OFF as the indication; or the high-level parameter is set to 1, and the high-level parameter is set to 0 to indicate; or it can also be other distinguishing between on and off. Form, this application does not limit the specific representation form of on and off. When the status of the feedback switch corresponding to a group #1 is on, it means that the terminal device needs to send feedback information to the network device after receiving the data belonging to the service in the group #1. Correspondingly, when the status of the feedback switch corresponding to a packet #2 is off, it means that the terminal device does not need to send feedback information to the network device after receiving the data belonging to the service in the packet #2. Or the indication information may also be an indication field, and the network device and the terminal device may pre-appoint specific forms of feedback and non-feedback. Or the indication information may also be high-level parameters, such as RRC signaling.

The network equipment configures which indication information for which groups, and four ways of how the network equipment determines which indication information is configured for which groups are given as follows.

Method 1: The network device can configure indication information for each group according to the service characteristics of each group. For example, for groups with high service reliability requirements, you can configure indication information indicating feedback; for groups with low service reliability requirements, you can configure indication information indicating no feedback. Taking the indication information as the feedback switch as an example, the state of the feedback switch configured by the network device for the group with higher service reliability requirement is ON, and the state of the feedback switch configured for the group with lower service reliability requirement is OFF. Or, for packets with high service reliability requirements, more stable technology will be used for service data transmission, which can ensure the reliability of transmission to a certain extent, so it can also be configured to indicate non-feedback indication information; the requirement for service reliability is higher. For low packets, the bit error rate or block error rate is about 90%, and reliability requirements can be met with one transmission. Therefore, it is also possible to configure indication information indicating no feedback. For another example, for a packet with a relatively high service delay requirement (that is, a relatively low delay requirement), because the service in the packet has a limited time budget for transmission, if the terminal device fails to receive the first data transmitted initially, it will report to the network device Sending feedback information may exceed the time preset, resulting in invalid transmission of the feedback information. Therefore, for such packets with low service delay requirements, the network device usually transmits the first data multiple times by itself. In other words, the network device can configure the indication information that indicates no feedback for the packet; for packets with relatively low service delay requirements (that is, the required delay is higher), the network device may configure the indication information that indicates feedback, thereby improving data Reliability of transmission. Still taking the indication information as the feedback switch as an example, the state of the feedback switch configured by the network device for packets with lower service delay requirements is on, and the state of the feedback switch configured for packets with higher service delay requirements is off. For another example, for packets with high service reliability requirements and high service delay requirements, they can be configured to indicate non-feedback indication information. Due to the high service reliability requirements, the bit error rate or block error rate is required to reach If 99.999% or higher is required, a more stable technology will be used for service data transmission, which can ensure the reliability of transmission to a certain extent. In this case, feedback is not required. Moreover, due to the high demand for service delay, that is, The delay is required to be low, in order to prevent the retransmission time from exceeding the budget time, causing the retransmission to be invalid transmission, and there is no need to feedback to the network equipment. It should be understood that the service delay requirements and service reliability requirements of each service data can be determined according to the quality of service (QoS).

Manner 2: The network device can configure indication information for each group according to the service type of each group. For example, the network device may configure the indication information used to indicate feedback for packets whose service type belongs to URLLC, and the indication information used to indicate non-feedback for packets belonging to other service types.

Manner 3: The network device can configure indication information for each packet according to the current communication state between the terminal device and the network device (which can also be understood as a link resource). For example, retransmission may cause transmission congestion. Based on the communication status, the network device can configure the indication information for each packet to indicate no feedback. In particular, the service of each packet is the MBMS service. Since MBMS is used by the network device to send the first data to multiple terminal devices, if multiple terminal devices send feedback information to the network device at the same time, it may cause insufficient link resources, thus Cause transmission congestion.

Method 4: The network device can configure information for each group according to the current resource (such as time-frequency resource) occupancy. For example, the current resource is relatively scarce and there is no resource for transmitting feedback information. The network device can be configured for each group to indicate No feedback instructions. When these packets are for MBMS services, the network device can turn off the HARQ feedback mechanism, specifically, the terminal device can be notified to turn off the HARQ feedback mechanism through high-level signaling, or each packet can be configured with indication information indicating no feedback.

The above four ways of configuring indication information for each group are just examples, and this application is not limited to configuring indication information for each group. In addition, which method the network device chooses to configure the instruction information for each group can be selected by the network device itself. For example, the network device can be selected randomly, or the network device can also be selected based on certain factors. For example, the current resources are relatively scarce. The network device may choose to configure the indication information for each group as in the fourth method above; or, choose which method to configure the indication information for each group as described above, or it may be predefined through the protocol. This application does not restrict this.

In case 2, the indication information may include a second type of parameter, and the second type of parameter is used to indicate the threshold of feedback decision parameter. Among them, the feedback decision parameter may include any one or a combination of any of the following: distance, RSRP, and SINR. That is, the feedback decision parameter may be distance, or RSRP, or SINR, or distance and RSRP, or distance and SINR, or RSRP and SINR, or distance, RSRP and SINR. The feedback decision parameters listed above are only examples, and this application does not limit the specific content included in the feedback decision parameters.

The aforementioned distance may refer to the geographic distance between the terminal device and the network device (geographical distance), and the geographic distance represents the absolute distance between the network device and the terminal device. It is understandable that for the terminal equipment in the cell center, due to the relatively close distance to the network equipment, it can be considered that the transmission effect between the network equipment and the terminal equipment is better at this time. For the terminal equipment at the edge of the cell, due to the long distance from the network equipment, a better transmission effect may not be obtained. In other words, when the distance between the network device and the terminal device can be less than a certain value, a better transmission effect can be obtained. Therefore, when the distance is the feedback decision parameter, the distance threshold may be a specific distance value (which may be referred to as the first distance value below). Or, if the distance between the terminal device and the network device is too close, for example, the terminal device is under the feet of the network device, the terminal device is in a blind area covered by the network device at this time, even if the terminal device sends feedback to the network device that it has not successfully received data Information, the network device may not receive the feedback information; or even if the network device receives the feedback information from the terminal device and retransmits the business data again, it is very likely that the terminal device is in the blind area covered by the network device. Still cannot successfully receive the retransmitted service data. In other words, if the distance between the network device and the terminal device is relatively short, a better transmission effect cannot be obtained. Therefore, when the distance is a feedback decision parameter, the distance threshold may also be a specific distance value (which may be referred to as the second distance value below). Or, because the distance between the terminal device and the network device is too close or too far, a good transmission effect cannot be obtained. Therefore, when the distance between the network device and the terminal device is within a certain range, the terminal device sends feedback to the network device Information is meaningful. It can also be understood that when the distance is the feedback decision parameter, the distance threshold can be a distance range. It should be noted that when the distance is used as the feedback decision parameter, the threshold of the feedback decision parameter may be a certain distance value or a distance range. Moreover, when the distance is used as the feedback decision parameter, there is no need to consider the current channel conditions. In addition, the distance threshold or the value of a certain distance can be empirical values, historical data statistics, or typical values, etc. The threshold of the feedback decision parameter corresponds to a certain distance value or the corresponding distance range can make the terminal device and The distance between network devices is more consistent with the normal communication situation.

The aforementioned RSRP is a related parameter that can represent the strength of a wireless signal in a communication system, and refers to the average value of signal power received on all resource elements (resource elements, RE) that carry a reference signal in a certain symbol. It is understandable that when the RSRP value is small, it indicates that the wireless signal coverage is relatively poor. For example, when the RSRP of the receiving end is less than -105dBm, the wireless signal coverage is relatively poor and the service cannot be initiated. When the RSRP value is small, the terminal device sends feedback information to the network device, and the network device may not receive the feedback information, or even if the network device receives the feedback information from the terminal device and retransmits the service data again, due to wireless The signal coverage is poor, and it is very likely that the terminal device still cannot successfully receive the retransmitted service data. That is to say, when the RSRP value is small, the terminal device sends feedback information to the network device, and a better transmission effect cannot be obtained. When the RSRP value is large (such as >-75dBm), it indicates that the wireless signal coverage is better. In this case, the terminal device sends feedback information to the network device, and better transmission results may be obtained. Similarly, the RSRP threshold may be an empirical value, historical data statistical value, or a typical value, etc. The RSRP threshold can make the terminal device and the network device more consistent with the normal communication conditions.

The above-mentioned SINR may also be referred to as the signal-to-interference and noise ratio, which refers to the ratio of the strength of the useful signal received by the terminal device to the strength of the interference signal (noise and interference) received. It can be understood that the value of SINR is small, indicating that the channel condition is relatively poor, or the receiver noise is too high, or the useful transmission power level received by the receiver is low. In the case that the SINR value is small, the terminal device sends feedback information to the network device, and the network device may not receive the feedback information, or even if the network device receives the feedback information from the terminal device and retransmits the service data again Since the strength of the useful signal is small, even if the terminal device receives the retransmitted service data, it is very likely that the terminal device cannot successfully decode the retransmitted service data, and therefore may not be able to obtain a better transmission effect. When the SINR value is large (for example, >20dB), it indicates that the strength of the useful signal is better. In this case, the terminal device sends feedback information to the network device, which may obtain a better transmission effect. Similarly, the threshold of the SINR may be an empirical value, a statistical value of historical data, or a typical value, etc. The threshold of the SINR can make the terminal device and the network device more consistent with the normal communication conditions.

It should be noted that for different groups, the configured feedback decision parameter threshold may be different or the same, which is not limited in this application. In addition, the threshold of the feedback decision parameter in this application may also be pre-configured by the terminal device, or pre-defined. Or it can be pre-defined by agreement, which is not limited in this application. In addition, which feedback decision parameter the network device chooses can be selected by the network device itself, for example, the network device can select randomly; or it can also be a protocol predefined network device to choose which feedback decision parameter. This application does not limit this.

In case 3, the indication information may include the first-type parameters and the second-type parameters. For the detailed introduction of the first-type parameters and the second-type parameters, please refer to the introduction of the above-mentioned case 1 and case 2, respectively, and will not be repeated here.

Case 4, the indication information may include preset conditions. Exemplarily, feedback is when the current actual distance between the network device and the terminal device falls within a certain distance range, or when the distance between the network device and the terminal device is greater than a certain distance value; or when the network device and the terminal device are different Feedback when the distance between the two is less than a certain distance; or when the current SINR corresponding to the first data is greater than a certain SINR; or when the current RSRP corresponding to the first data is greater than a certain RSRP.

In case 5, the indication information may also include the first type of parameters and preset conditions. For example, the first type of parameter represents feedback, and the preset condition is feedback when the current actual distance between the network device and the terminal device falls within a certain distance range. For another example, the first type of parameter represents feedback, and the preset condition is that the current SINR corresponding to the first data is greater than a certain SINR value; for another example, the first type of parameter represents feedback, and the preset condition is the current RSRP corresponding to the first data Feedback when it is greater than a certain RSRP value.

Or the indication information may also include the second type of parameters and preset conditions. For example, when the feedback decision parameter is distance, the second type of parameter is the threshold of the feedback decision distance, and the preset condition can be feedback when it is greater than the feedback decision distance threshold, or feedback when it is less than the feedback decision distance threshold, or fall into the feedback The threshold time feedback of the judgment distance. For another example, when the feedback decision parameter is RSRP, the second type of parameter is the threshold of the feedback decision RSRP, and the preset condition may be feedback when it is greater than the threshold of the feedback decision RSRP. For another example, when the feedback decision parameter is SINR, the second type of parameter is the threshold of the feedback decision SINR, and the preset condition may be feedback when the SINR is greater than the feedback decision threshold.

In case 6, the indication information may also include the first type of parameter, the second type of parameter and the preset condition.

Exemplarily, the first type of parameter represents feedback, the feedback decision parameter is distance, the second type of parameter represents the threshold of the feedback decision distance, and the preset condition is feedback when the threshold is greater than the distance of the feedback decision parameter; or, the first parameter represents feedback, The feedback decision parameter is SINR, the second type parameter represents the threshold of the feedback decision SINR, and the preset condition can be feedback when the threshold is greater than the feedback decision SINR; or, the first type parameter represents feedback, the feedback decision parameter is RSRP, and the second parameter represents The threshold of the feedback decision RSRP, the preset condition may be greater than the threshold of the feedback decision RSRP.

Among them, the first type of parameters can refer to the introduction of the above case 1, the second type of parameters can refer to the description of the above case 2, and the third type of parameters can refer to the introduction of the above case 3.

It should be noted that the network equipment can choose the indication information in the above-mentioned situation, for example, the network equipment can be selected randomly, or it can be selected according to the grouping basis; or, choose the above-mentioned situation The instruction information can also be pre-defined through the protocol. This application does not restrict this.

Step 302: The network device sends the grouping information to the terminal device. Correspondingly, the terminal device receives packet information from the network device.

Here, the grouping information is used to indicate the first identifier included in one or more groups. Wherein, the first identifier includes but is not limited to the TMGI, G-RNTI, MCCH or SC-MCCH described above. The specific indication form of the grouping information can be which first identifiers are included in each group. Take the first identifier as TMGI as an example, the indication form of the grouping information is like group #1={TMGI-1, TMGI-2, TMGI-3 }, group #2 = {TMGI-4, TMGI-5}; or the indication form of the grouping information can also indicate which group each first identifier belongs to, TMGI-1 belongs to group #1, and TMGI-2 belongs to group # 1. TMGI-3 belongs to group #1, TMGI-4 belongs to group #2, TMGI-5 belongs to group #2, etc. This application does not specifically limit the indication form of grouping information.

Further, the grouping information may also include indication information corresponding to each grouping. In other words, one group corresponds to one indication information. The indication information may be indicated in an explicit manner or may also be indicated in an implicit manner. For the detailed introduction of the indication information, please refer to the above introduction of the indication information, which will not be repeated here.

In this application, the grouping information indicates the first identifier included in each group, and the indication information corresponding to each grouping can be sent to the terminal device through a signaling. For example, the network device can be sent to the terminal device through RRC signaling. The grouping information included in it indicates the first identifier included in each group and the indication information corresponding to each group. Alternatively, the grouping information indicating the first identifier included in each grouping, and the indication information corresponding to each grouping may also be sent to the terminal device through two signalings. For example, the network equipment can also be sent to the terminal equipment through RRC signaling. One RRC signaling includes grouping information to indicate the first identifier included in each group, and another RRC signaling includes indication information corresponding to each group. RRC signaling does not affect each other. Further, when two signalings are sent to the terminal equipment, they may be sent to the terminal equipment twice, that is, one signaling is sent to the terminal equipment at a time, or both signalings are sent to the terminal equipment at a time. It is understandable that the network device may send packet information to the terminal device in the form of multicast (also called multicast), or may also send the packet information to the terminal device in the form of broadcast.

In a possible implementation manner, the network device may send packet information to the terminal device through high-level signaling. For example, the grouping information can be carried in high-level signaling. Specifically, when the service is a multimedia broadcast multicast service (MBMS), each grouping information can be carried in single cell point-to-multipoint (single cell point-to-multipoint, SC-PTM) configuration information. In this implementation, high-level signaling may also be referred to as configuration information.

In another possible implementation manner, the network device may also send packet information to the terminal device through a system message. For example, grouping information can be carried in system messages. The system message may be an information block (system information block x, SIBx), such as SIB13 in MBMS or SIB20 in MBMS.

In yet another possible implementation manner, the network device may also dynamically notify the terminal device of the indication information corresponding to each group through downlink control information (DCI).

Step 303: The network device sends the first data to the terminal device. Correspondingly, the terminal device receives the first data from the network device.

Here, the first data may also be referred to as transport block, service data, or user data. The first data may be carried on a physical multicast channel (PMCH) or on a physical downlink shared channel, PDSCH). It should be noted that the network device may send the first data to multiple terminal devices in the form of broadcast, and may also send the first data to the terminal devices in the form of multicast (multicast).

Step 304: The terminal device determines the first group to which the first data belongs, and determines whether it is necessary to send feedback information to the network device according to the indication information corresponding to the first group. In an embodiment, the terminal device determines the first group to which the first data belongs, and determines that it needs to send feedback information to the network device according to the indication information corresponding to the first group.

Wherein, the first group is one of one or more groups.

In this application, the feedback information may be HARQ feedback information, and the HARQ feedback information includes an acknowledgement character (acknowledgement, ACK) or a negative acknowledgement character (negative acknowledgement, NACK). Or the feedback information may also be channel state information (channel state information, CSI), and CSI includes channel quality information (channel quality information, CQI), precoding matrix information (precoding matrix information, PMI), and rank information (rank information, RI) . Alternatively, the feedback information may also be HARQ feedback information and CSI. It should be noted that whether the feedback information is HARQ feedback information or CSI or HARQ feedback information and CSI can be designated by the network device and notified to the terminal device, or pre-appointed by the network device and the terminal device, or it can be the terminal device It is default, or it can be pre-defined by agreement, which is not limited in this application. In addition, what is the feedback information notified by the network device to the terminal device can be sent to the terminal device together with the packet information, or can be sent to the terminal device through separate signaling.

With the combination of MBMS in this application, the terminal device can determine the first group to which the first data belongs in the following manner.

MBMS usually includes multimedia broadcast single frequency network (multimedia broadcast single frequency network, MBSFN) transmission and single cell point-to-multipoint (single cell point-to-multipoint, SC-PTM) transmission two transmission methods. The following describes the process of determining the first group to which the first data belongs to the two transmission modes.

The MBSFN transmission method is also called the single frequency network (SFN) transmission method. Refers to simultaneous transmission in multiple cells at the same time and frequency. This MBSFN transmission mode can save frequency resources and improve spectrum utilization. At the same time, the diversity effect brought by this multi-cell co-frequency transmission can solve problems such as blind area coverage, enhance the reliability of reception and increase the coverage rate. For this MBSFN transmission mode, the terminal equipment in this application refers to the terminal equipment in the MBSFN area. Among them, the MBSFN area refers to a group of cells that realize MBSFN transmission through coordination, and the entire MBSFN area will be regarded as one MBSFN cell. It can also be understood that the group of cells realizes MBSFN transmission through coordination, uses the same air interface resources, and transmits the same MBMS. Or it can be understood that several cells are pre-configured to form an MBSFN combined area. Multiple network devices in the combined area use the same radio resources to transmit MBMS, that is, send the same service data to the combined area at the same time. All terminal equipment.

In this MBSFN transmission mode, the first group to which the first data belongs can be determined in combination with the mapping relationship between the channels shown in FIG. 4. Because MBMS has corresponding channels in the MAC layer and the physical layer to transmit service data. The logical channels in the MAC layer mainly include multicast control channel (multicast control channel, MCCH) and multicast transmission channel (multicast traffic channel, MTCH). Among them, MCCH is used to transmit MBMS control information, and MTCH is used to transmit MBMS service data, such as first data. The logical channels MCCH and MTCH are multiplexed onto a transmission channel (multicast channel, MCH). For example, one MTCH and one MCCH can be multiplexed into one MCH media access control protocol data unit (MAC protocol data unit, MAC PDU), or only one MTCH is carried in one MCH MAC PDU. MCH is mapped to PMCH. When the terminal device receives the PMCH carrying the first data from the physical channel, referring to FIG. 4, according to the mapping relationship between the PMCH and the MCH, the MCH corresponding to the PMCH carrying the first data can be determined, and then according to the relationship between the MCH and the MCCH The mapping relationship can determine the MCCH corresponding to the first data. Because one MCCH corresponds to one MBSFN area, that is, each MBSFN area has one MCCH. In this way, one MCCH can be used to identify a service, so it is determined that the MCCH corresponding to the first data belongs to The group is the first group.

The SC-PTM transmission mode refers to MBMS broadcasting the first data to specific cells, and at least one terminal device in these specific cells must be interested in the first data broadcast. That is to say, in the SC-PTM transmission, the terminal device refers to the terminal device that is interested in the broadcasted first data. Among them, the logical channels in the MAC layer mainly include SC-MCCH and single cell multicast traffic channel (SC-MTCH). Similarly, SC-MCCH is used to transmit MBMS control information, and SC-MTCH is used to transmit MBMS service data, such as first data. The logical channels SC-MCCH and SC-MTCH are mapped to the downlink shared channel (DL-SCH), and the DL-SCH is mapped to the PDSCH.

In the SC-PTM transmission mode, when the terminal device receives the PDSCH carrying the first data, referring to FIG. 5, according to the mapping relationship between the PDSCH and the DL-SCH, determine the DL-SCH corresponding to the PDSCH carrying the first data, Then, according to the mapping relationship between DL-SCH and SC-MCCH, the SC-MCCH corresponding to the first data can be determined, and because a service can only be configured with one SC-MCCH in a specific cell, the first The group to which the SC-MCCH corresponding to the data belongs is determined as the first group. Further, when the terminal device is in the RRC connected state, the network device will configure a G-RNTI for the first data. If the first identifier is G-RNTI, the terminal device can determine that the first data corresponds to G-RNTI, and because the scrambling code for SC-MTCH is G-RNTI, that is, one G-RNTI can identify one service. Therefore, the group to which the G-RNTI corresponding to the first data belongs can be determined For the first group. Furthermore, if the first identifier is TMGI, since the SC-MCCH carries the mapping relationship between G-RNTI and TMGI, the G-RNTI corresponding to the first data can be determined, and then from the mapping relationship between G-RNTI and TMGI The TMGI corresponding to the G-RNTI corresponding to the first data is determined, and the group in which the TMGI corresponding to the first data is located is determined as the first group.

Based on the first group determined above and in combination with the introduction of the above indication information, the following describes in detail the process in which the terminal device determines whether it needs to send feedback information to the network device according to the indication information corresponding to the first group.

Based on the indication information introduced in the above scenario 1, that is, the indication information is the first type of parameter. If the terminal device determines that the first type of parameter corresponding to the first group represents feedback, the terminal device sends feedback information to the network device; if the terminal device determines the first type of parameter The first type of parameter corresponding to a group indicates no feedback, and the terminal device does not send feedback information to the network device. Specifically, when the first type of parameter is a feedback switch, if the terminal device determines that the status of the feedback switch corresponding to the first group is on, the terminal device sends feedback information to the network device; if the terminal device determines the feedback switch corresponding to the first group If the status is off, the terminal device does not send feedback information to the network device.

Based on the indication information introduced in scenario 2 above, the indication information is a second type of parameter. When the terminal device determines that the value of the feedback decision parameter corresponding to the first data satisfies the threshold of the feedback decision parameter, it sends the feedback information to the network device; or, the terminal When the device determines that the value of the feedback decision parameter corresponding to the first data does not meet the threshold of the feedback decision parameter, it does not send feedback information to the network device. The following describes the different feedback decision parameters in the above scenario 2 respectively.

Example A, the feedback decision parameter is distance. Here, the threshold of the feedback decision parameter can be referred to as the threshold of distance. To facilitate the understanding of the solution, the threshold of the distance corresponding to the first group is called the threshold of the first distance. The threshold of the first distance can be a range or a certain distance value (such as the first distance value or the second distance value). Combining the above introduction about distance as a feedback decision parameter, here the first distance threshold is the distance The range and a certain distance value are respectively described as examples.

In a possible implementation manner, the threshold of the first distance is a distance range. The terminal device can determine the current actual distance between the terminal device and the network device according to the location information of the network device and its own current location information. The current actual distance is the value of the feedback decision parameter corresponding to the first data; if the terminal device If the determined current actual distance is within the distance range, the terminal device sends feedback information to the network device; if the current actual distance determined by the terminal device is not within the distance range, the terminal device does not send feedback information to the network device. For example, the first distance threshold is [100m-200m], if the current actual distance determined by the terminal device is 150m, 150m is within the range of [100m-200m], so the terminal device sends feedback information to the network device; if the terminal device determines The current actual distance is 300m. If 300m is not within the range of [100m-200m], the terminal device does not need to send feedback information to the network device.

In another possible implementation manner, the threshold of the first distance is a first distance value, and when the current actual distance is less than the first distance value, the terminal device sends feedback information to the network device. Similarly, the terminal device can determine the current actual distance between the terminal device and the network device based on the location information of the network device and its own current location information. If the current actual distance determined by the terminal device is less than the first distance value, then The terminal device sends feedback information to the network device; if the current actual distance determined by the terminal device is greater than the first distance value, the terminal device does not need to send feedback information to the network device. For example, the first distance value is 200m. If the current actual distance determined by the terminal device is 150m, and 150m is less than 200m, the terminal device sends feedback information to the network device; if the terminal device determines that the current actual distance is 300m, and 300m is greater than 200m, then The terminal device does not need to send feedback information to the network device.

In another possible implementation manner, the threshold of the first distance is a second distance value, and when the current actual distance is greater than the second distance value, the terminal device sends feedback information to the network device. Similarly, the terminal device can determine the current actual distance between the terminal device and the network device according to the location information of the network device and its own current location information. If the current actual distance determined by the terminal device is greater than the second distance value, then The terminal device sends feedback information to the network device; if the current actual distance determined by the terminal device is less than the second distance value, the terminal device does not need to send feedback information to the network device. For example, the second distance value is 100m. If the current actual distance determined by the terminal device is 150m, and 150m is greater than 100m, the terminal device sends feedback information to the network device; if the terminal device determines that the current actual distance is 50m, and 50m is less than 200m, then The terminal device does not need to send feedback information to the network device.

It should be noted that the terminal device determines that the current actual distance is within the distance range, and the current actual distance is not within the distance range. No feedback is given. It can be the default of the terminal device; or the network device can notify the terminal device, such as the network device in advance. To the terminal device, or send to the terminal device along with the instruction information; or it may be pre-arranged by the terminal device and the network device, or it may be predefined by the protocol, which is not limited in this application. Similarly, the terminal device determines that the current actual distance is less than the first distance value feedback, or is greater than the second distance feedback, which may be the default of the terminal device; or it may be notified by the network device to the terminal device, which may be notified in advance or randomly. The instruction information is sent to the terminal device together; or it may be agreed in advance by the terminal device and the network device, or it may be predefined by the protocol, which is not limited in this application.

In addition, the network device can carry the location information of the network device in the first data; or the network device can send its own location information to the terminal device in advance. For example, after the network device establishes a connection with the terminal device, the network device will The location information is notified to the terminal device; or when the terminal device determines that it needs to know the location information of the network device, it sends a request to the network device to obtain the location information of the network device, and the network device sends a response to the terminal device. The response includes the network Location information of the device. In addition, the terminal device can determine its current location through its internal gyroscope and sensors.

Example B, the feedback decision parameter is RSRP, here the threshold of the feedback decision parameter may be referred to as the RSRP threshold, and the RSRP threshold corresponding to the first group may be referred to as the first RSRP threshold.

In a possible implementation, before receiving the first data, the terminal device may first measure the current channel according to the measurement signal (also referred to as the reference signal) to obtain a current RSRP value. The current RSRP value is It is the value of the feedback decision parameter corresponding to the first data, and the current RSRP value can reflect the current channel state. After the terminal device receives the first data, if the terminal device determines that the current RSRP value is less than the first RSRP threshold, the terminal device does not send feedback information to the network device; if the terminal device determines that the current RSRP value is greater than or equal to the first RSRP The terminal device sends feedback information to the network device. For example, the first RSRP threshold is -80dB, and the terminal device determines that the current RSRP value is -76dB, then the terminal device sends feedback information to the network device; when the terminal device determines that the current RSRP value is -106dB, the terminal device does not need to The network device sends feedback information. It should be noted that the terminal device determines that the current RSRP value is less than the threshold of the first RSRP and does not feedback. The threshold feedback greater than the first RSRP may be the default of the terminal device, or the network device may notify the terminal device in advance, or it may be It is predefined by the agreement, and this application does not limit it.

Example C: The feedback decision parameter is SINR. Here, the threshold of the feedback decision parameter may be referred to as the SINR threshold, and the threshold of the SINR corresponding to the first group may be referred to as the first SINR threshold.

In a possible implementation manner, after receiving the first data, the terminal device may first determine the current SINR value according to the first data, that is, the terminal device determines the ratio of the power of the first data to the interference noise power as the current SINR The value of the current SINR is the value of the feedback decision parameter corresponding to the first data. If the terminal device determines that the current SINR value is less than the first SINR threshold, the terminal device does not send feedback information to the network device; if the terminal device determines that the current SINR value is greater than or equal to the first SINR threshold, the terminal device sends to the network device Feedback. For example, the first SINR threshold is 0.8, and when the terminal device determines that the current SINR value is 0.9, the terminal device sends feedback information to the network device. When the terminal device determines that the current SINR value is 0.5, the terminal device does not need to send feedback information to the network device. It should be noted that the terminal device determines that the current SINR value is less than the first SINR threshold and does not feedback. The threshold feedback greater than the first SINR may be the default of the terminal device, or the network device may notify the terminal device in advance, or it may be It is predefined by the agreement, and this application does not limit it.

Example D, the feedback decision parameters are distance and RSRP, where the threshold of the feedback decision parameter is the combination of the distance threshold and the RSRP threshold. Similarly, the threshold of the feedback decision parameter corresponding to the first group can be called the first distance The combination of the threshold and the threshold of the first RSRP. After the terminal device receives the first data, if it is determined that the current actual distance between the terminal device and the network device meets the first distance threshold and the current RSRP parameter value meets the first RSRP threshold, it sends feedback information to the network device ; Otherwise, no feedback information is sent to the network device. For the specific judgment process, please refer to the above example A and example B, which will not be repeated here.

It should be noted that the terminal device may first determine whether the current actual distance meets the first distance threshold, and when the current actual distance meets the first distance threshold, then determine whether the current RSRP value meets the first RSRP threshold. Or when it is determined that the current RSRP value meets the first RSRP threshold, then determine whether the current actual distance meets the first distance threshold, or at the same time determine whether the current RSRP value of the terminal device meets the first RSRP threshold, and whether the current actual distance Meet the threshold of the first distance. If the threshold of the feedback decision parameter is a combination of two or more, the terminal device can randomly choose which decision to perform first, or it can predefine the decision sequence, or the network device can indicate the decision sequence to the terminal device, or It may also be that the terminal device determines the order of judgment based on certain factors, which is not limited in this application.

In this application, the feedback decision parameter can also be a combination of distance and SINR. Accordingly, the threshold of the feedback decision parameter is a combination of the distance threshold and the SINR threshold; or the feedback decision parameter can be a combination of RSRP and SINR. Accordingly, The threshold of the feedback decision parameter is the combination of the RSRP threshold and the SINR threshold; or the feedback decision parameter can be a combination of distance, RSRP, and SINR. Accordingly, the threshold of the feedback decision parameter is the distance threshold, the RSRP threshold, and the SINR threshold. combination. In addition, for various combinations, the order of the terminal equipment decision can refer to the description of the above example D, which will not be repeated here.

Based on the indication information introduced in case 3 above, that is, the indication information is the first type of parameter and the second type of parameter. When the terminal device determines that the first type parameter corresponding to the first group to which the first data belongs represents feedback, and the value of the feedback decision parameter corresponding to the first data satisfies the threshold of the feedback decision parameter, it sends feedback information to the network device; or the terminal device is in When it is determined that the first-type parameter corresponding to the first group represents feedback, and the value of the feedback decision parameter corresponding to the first data does not meet the threshold of the feedback decision parameter, there is no need to send feedback information to the network device; or the terminal device determines the first group The corresponding first-type parameter indicates that no feedback is provided, and when the value of the feedback decision parameter corresponding to the first data meets the threshold of the feedback decision parameter, there is no need to send feedback information to the network device; or the terminal device determines the first packet corresponding to the first packet. The class parameter means no feedback and the value of the feedback decision parameter corresponding to the first data does not meet the feedback decision parameter threshold, there is no need to send feedback information to the network device; or the terminal device is determining the first class corresponding to the first packet The feedback parameter means no feedback, and the value of the second type parameter can no longer be determined. Among them, the first type of parameter corresponding to the first group indicates that the feedback determination process can refer to the above-mentioned determination process based on scenario 1, and the value of the feedback decision parameter meets the threshold of the feedback decision parameter can refer to the above-mentioned scenario 2 (such as example A, example B) And the introduction of example C), I will not repeat it here. It should be noted that the terminal device may first determine the first type of parameters, and then determine the second type of parameters when it is determined that the first type of parameters indicate feedback; or it may first determine the second type of parameters, and use the In the case of indicating feedback, the first type of parameter is determined, and this application does not limit whether the first type of parameter is determined first or the second type of parameter is determined first.

Based on the instruction information introduced in the above scenario 4, that is, the instruction information is a preset condition. If the preset condition is that the current actual distance between the network device and the terminal device falls within a certain distance range, the terminal device can determine the location information of the network device and its own current location information after receiving the first data The current actual distance between the terminal device and the network device is calculated. If the current actual distance determined by the terminal device is within the distance range in the preset condition, the terminal device sends feedback information to the network device; otherwise, the terminal device does not need to The network device sends feedback information.

Or the preset condition is that the current SINR corresponding to the first data is fed back when it is greater than a certain SINR value. After receiving the first data, the terminal device can determine the current SINR corresponding to the first data. If the first data determined by the terminal device is If the corresponding current SINR is greater than a certain SINR value in the preset condition, the terminal device sends feedback information to the network device; otherwise, the terminal device does not need to send feedback information to the network device.

Or the preset condition is that when the current RSRP corresponding to the first data is greater than a certain RSRP value, the terminal device can determine the current RSRP corresponding to the first data after receiving the first data. If the terminal device determines the first data If the corresponding current RSRP is greater than a certain RSRP value in the preset condition, the terminal device sends feedback information to the network device; otherwise, the terminal device does not need to send feedback information to the network device.

Based on the above scenario 5, the indication information includes the first type of parameters and preset conditions. Taking the preset condition that the current actual distance between the network device and the terminal device falls within a certain distance range as an example, the terminal device determines that the first type of parameter corresponding to the first packet described in the received first data indicates feedback , It is also necessary to further determine whether the current actual distance between the terminal device and the network device falls within the distance range, if it falls, then feedback; if it does not fall, no feedback is required. Taking the feedback when the preset condition is that the current SINR corresponding to the first data is greater than a certain SINR value as an example, the terminal device determines that the first type of parameter corresponding to the first packet described in the received first data indicates feedback, and further It is determined whether the current SINR corresponding to the received first data is greater than a certain SINR value in the preset condition, if it is greater, feedback is performed; if it is not greater, no feedback is required. Taking the preset condition as feedback when the current RSRP corresponding to the first data is greater than a certain RSRP value as an example, the terminal device determines that the first type of parameter corresponding to the first packet described in the received first data indicates feedback, and further It is determined whether the current RSRP corresponding to the received first data is greater than a certain RSRP value in the preset condition, and if it is greater, feedback is performed; if it is not greater, no feedback is required.

Based on the indication information of the above scenario 6, if the indication information is that the first type of parameter indicates feedback, the second type of parameter indicates the threshold of the feedback decision distance, and the preset condition is that the feedback is greater than the threshold of the feedback decision parameter distance, then the terminal device will receive After the first data, the terminal device determines that the first type of parameter corresponding to the first packet described in the received first data represents feedback, and determines that the current actual distance between the network device and the terminal device is greater than the threshold of the feedback decision parameter distance , The terminal device sends feedback information to the network device. For the terminal device to determine the current actual distance, please refer to the introduction of the above example A, which will not be repeated here. Or, the indication information is that the first parameter indicates feedback, and the second type of parameter indicates the threshold of the feedback decision SINR. The preset condition is that the feedback is greater than the feedback decision SINR threshold. Then, after the terminal device receives the first data, the terminal device is determining The first type parameter corresponding to the first packet in the received first data represents feedback, and when it is determined that the current SINR corresponding to the first data is greater than the feedback decision SINR threshold, the terminal device sends feedback information to the network device. Or, the indication information is that the first type of parameter indicates feedback, and the second parameter indicates the threshold of the feedback decision RSRP. The preset condition may be greater than the feedback decision RSRP threshold. Then the terminal device receives the first data and the terminal device is It is determined that the first type parameter corresponding to the first packet in the received first data indicates feedback, and when it is determined that the current RSRP corresponding to the first data is greater than the RSRP threshold for the feedback decision, the terminal device sends feedback information to the network device.

In order to further reduce the feedback overhead of the system, the terminal device may send feedback information to the network device when it is determined that the feedback information needs to be sent to the network device, and the feedback information meets the feedback condition, the feedback condition is that the first data is not correctly parsed. In other words, the terminal device can send feedback information to the network device when it is determined that it needs to send feedback information to the network device and the feedback information is NACK; if the terminal device determines that it needs to send feedback information to the network device, but the feedback information is ACK , No need to send feedback information to network devices. In this way, the network device does not need to know the transmission status of each first data. For example, when the network device broadcasts the first data, it wants to send the first data to many terminal devices. At this time, the network device only needs to know the Which first data in a particular service feature or a particular type of service has not been correctly parsed by the terminal device, so that the network device can retransmit. For those without feedback, the network device can consider that the first data has been correctly received by the terminal device. This can reduce the number of ACK/NACK control information sent by the terminal device to the network device, and can help reduce the overhead and loss of the system while ensuring effective feedback, thereby achieving more efficient feedback. It should be understood that the incorrect analysis of the first data includes but is not limited to failure to demodulate and decode the first data.

In this application, the network device can configure a common resource for each group. When the terminal device determines that it needs to send feedback information to the network device, it can send the feedback information on the group common resource corresponding to the group, where the group common resource refers to The terminal devices in a cell can be divided into multiple groups, and each group has a corresponding group common resource. The terminal devices in the group can use the group common resources of the group, and the terminal devices in other groups cannot use it. Alternatively, the network device may also be allocated a specific resource for sending feedback information on a common resource for each terminal device, where the common resource refers to a resource that can be used by all terminal devices in the same cell.

In this application, after the network device receives the feedback information from the terminal device, if it is determined to receive an ACK, it means that the terminal device has successfully received the first data, and the network device can continue the subsequent transmission of service data; if it is determined to receive If the NACK is received, it means that the terminal device has not successfully received the first data, and the network device can retransmit the first data.

From the above steps 301 to 303, it can be seen that by grouping multiple services and configuring instruction information for each group, it is possible to realize that some groups need to send feedback information to the network device, that is, the feedback mechanism is turned on, and some services do not need to be sent to the network device. Send feedback information, that is, the feedback mechanism is not turned on (or turned off). After the terminal device receives the first data belonging to the packet without the feedback mechanism, no matter whether the first data is correctly parsed, it does not need to send any feedback information to the network device. This helps reduce the feedback overhead of the communication system (Control information except useful data is called overhead), and it can also reduce the complexity of the system. Further, a service with high service transmission reliability requirements can be set as a group, and a feedback mechanism can be enabled for the group configuration. If possible, the high reliability requirements of the service data transmission in the group can be guaranteed.

Based on the foregoing content and the same concept, the present application provides a communication device for executing any solution on the terminal device side in the foregoing method flow. Fig. 6 exemplarily shows a schematic structural diagram of a communication device provided in this application. For example, the communication device in this example may be the terminal device 600, and the solution corresponding to the terminal device in FIG. 3 may be executed. The terminal device 600 may also be the terminal device 102 in FIG. 1 described above, or the terminal device 201 in FIG. 2 described above. As shown in FIG. 6, the terminal device 600 includes:

The transceiver unit 602 is configured to receive packet information from the network device and receive first data from the network device. Wherein, the grouping information indicates the first identifier included in one or more groups, and the grouping information also includes indication information corresponding to each group.

The processing unit 601 is configured to determine the first group to which the first data belongs, and determine whether feedback information needs to be sent to the network device according to the indication information corresponding to the first group, and the first group is one of one or more groups.

In a possible implementation manner, the indication information includes but is not limited to any one of the following three situations.

In case 2, the indication information includes a second type of parameter, where the second type of parameter is used to indicate the threshold of the feedback decision parameter, and the processing unit 601 is used to determine that the value of the feedback decision parameter corresponding to the first data satisfies the threshold of the feedback decision parameter. Within a limited time, send feedback information to the network device; or, when the user of the processing unit 601 determines that the value of the feedback decision parameter corresponding to the first data does not meet the threshold of the feedback decision parameter, the user does not send the feedback information to the network device.

In case 3, the indication information includes the first-type parameters and the second-type parameters. For the first-type parameters and the second-type parameters, please refer to the introduction of the above-mentioned case 1 and case 2, which will not be repeated here.

When the indication information is the above situation 3, the indication information corresponding to the first group may include the first type parameter and the second type parameter, and the processing unit 601 is further configured to: determine the first type corresponding to the first group to which the first data belongs The parameter represents feedback and when the value of the feedback decision parameter corresponding to the first data meets the threshold of the feedback decision parameter, feedback information is sent to the network device.

In a possible implementation, the feedback decision parameters include any one or a combination of any of the following: distance, reference signal receiving power (reference signal receiving power, RSRP), signal to interference ratio (signal to interference) plus noise ratio, SINR). That is, the feedback decision parameter can be distance, or RSRP, or SINR, or distance and RSRP, or distance and SINR, or RSRP and SINR, or distance, RSRP and SINR.

The processing unit 601 is further configured to determine that feedback information needs to be sent to the network device, and when it is determined that the feedback information satisfies the feedback condition, send the feedback information to the network device; wherein the feedback condition is: the first data is not correctly parsed.

It should be understood that the processing unit 601 in the embodiment of the present application may be implemented by a processor or a processor-related circuit component, and the transceiver unit 602 may be implemented by a transceiver or a transceiver-related circuit component.

The embodiment of the present application also provides a communication device, which may be a terminal device or a circuit. The communication device may be used to perform actions performed by the terminal device in the method embodiment shown in FIG. 3 above.

Based on the foregoing content and the same concept, the present application provides a communication device for executing any solution on the network device side in the foregoing method flow. Fig. 7 exemplarily shows a schematic structural diagram of a communication device provided in this application. The communication device in this example may be the network device 700, which may execute the solution corresponding to the network device in FIG. 3 above. The network device 700 may also be the network device 101 in FIG. 1 described above, or the network device 202, network device 203, and network device 204 in FIG. 2 described above. As shown in FIG. 7, the network device 700 includes:

The processing unit 701 is configured to configure indication information for each group.

The transceiver unit 702 is configured to send grouping information to a terminal device, the grouping information indicates the first identifier included in one or more groups, and the grouping information further includes indication information corresponding to each grouping.

In a possible implementation manner, the processing unit 701 is further configured to group multiple services.

The processing unit 701 is specifically configured to group multiple services according to the service characteristics and/or service types of the multiple services. That is, the network device can group multiple services according to service characteristics, group multiple services according to service types, or group multiple services according to service types and service characteristics. Optionally, the service characteristics include any one or a combination of any of service reliability requirements, service coverage capabilities, service delay requirements, service data volume, service mobility requirements, and service priorities; service types include eMBB, Any of URLLC, mMTC, V2X, IoT.

In a possible implementation manner, the first identifier is TMGI, G-RNTI, MCCH, or SC-MCCH.

In this application, the indication information may include the first type of parameters, or the indication information may include the second type of parameters, or the indication information may include the first type of parameters and the second type of parameters. Among them, the first type of parameter is used to indicate feedback or no feedback; the second type of parameter is used to indicate the threshold of the feedback decision parameter, and the threshold of the feedback decision parameter is used to: the terminal device determines that the value of the feedback decision parameter corresponding to the first data satisfies When the threshold of the feedback decision parameter is fed back, the feedback information is sent to the network device; or, when it is determined that the value of the feedback decision parameter corresponding to the first data does not meet the threshold of the feedback decision parameter, the feedback information is not sent to the network device.

The transceiver unit 702 is specifically configured to send grouping information to the terminal device through high-level signaling; or, to send the grouping information to the terminal device through a system message.

It should be understood that the processing unit 701 in the embodiment of the present application may be implemented by a processor or processor-related circuit components, and the transceiver unit 702 may be implemented by a transceiver or transceiver-related circuit components.

When the communication device is a terminal device, FIG. 8 shows a simplified structural diagram of the terminal device. It is easy to understand and easy to illustrate. In Figure 8, the terminal device is a mobile phone as an example. As shown in FIG. 8, the terminal device 800 includes a processor, a memory, a control circuit, and an antenna. The processor is mainly used to process the communication protocol and communication data, and to control the entire terminal device, execute software programs, and process data of the software programs, for example, to support the terminal device 800 to execute any of the above-mentioned embodiments by the terminal device 800 Method of execution. The memory is mainly used to store software programs and data. The control circuit is mainly used for the conversion of baseband signals and radio frequency signals and the processing of radio frequency signals. The control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.

When the terminal device is turned on, the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and then sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal device 800, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data . Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.

For ease of description, FIG. 8 only shows a memory and a processor. In actual terminal devices, there may be multiple processors and memories. The memory may also be called a storage medium or a storage device, etc., which is not limited in this application.

As an optional implementation, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control the entire terminal device 800. Execute the software program and process the data of the software program. The processor in FIG. 8 integrates the functions of the baseband processor and the central processing unit. It should be noted that the baseband processor and the central processing unit may also be independent processors, which are interconnected by technologies such as buses. It should be noted that the terminal device may include multiple baseband processors to adapt to different network standards, the terminal device 800 may include multiple central processors to enhance its processing capabilities, and the various components of the terminal device 800 may be connected through various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data can be built in the processor, or can be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

In this application, the antenna and control circuit with the transceiver function can be regarded as the transceiver unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device. As shown in FIG. 8, the terminal device includes a transceiver unit 802 and a processing unit 801. The transceiver unit may also be called a transceiver, a transceiver, a transceiver, etc., and a processing unit may also be called a processor, a processing board, a processing unit, a processing device, and the like. Optionally, the device for implementing the receiving function in the transceiver unit can be regarded as the receiving unit, and the device for implementing the transmitting function in the transceiver unit can be regarded as the transmitting unit, that is, the transceiver unit includes the receiving unit and the transmitting unit. The receiving unit may also be called a receiver, a receiver, a receiving circuit, etc., and the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.

On the downlink, the antenna receives the downlink signal (including data and/or control information) sent by the network device, and on the uplink, the antenna sends the uplink signal (including data) to the network device or other terminal equipment. And/or control information). In the processor, service data and signaling messages are processed. These units are based on the radio access technology adopted by the radio access network (for example, LTE, NR, and other evolved system access technologies) To process. The processor is also used to control and manage the actions of the terminal device, and is used to execute the processing performed by the terminal device in the foregoing embodiment. The processor is also used to support the terminal device to execute the execution method involving the terminal device in FIG. 8.

It can be understood that FIG. 8 only shows a simplified design of the terminal device. In practical applications, the terminal device may include any number of antennas, memories, processors, etc., and all terminal devices that can implement this application are within the protection scope of this application.

It should be understood that the transceiving unit 802 is used to perform the sending and receiving operations on the terminal device side in the method embodiment shown in FIG. 3, and the processing unit 801 is used to perform the terminal device side in the method embodiment shown in FIG. Operations other than operations.

For example, the transceiving unit 802 is configured to perform the transceiving steps on the terminal device side in the embodiment shown in FIG. 3, such as step 302 and step 303. The processing unit 801 is configured to perform other operations on the terminal device side in the embodiment shown in FIG. 3 except for the receiving and sending operations, such as step 304.

When the communication device is a chip, the chip includes a transceiver unit and a processing unit. Among them, the transceiver unit may be an input/output circuit or a communication interface; the processing unit is a processor or microprocessor or integrated circuit integrated on the chip.

When the communication device is a network device, FIG. 9 exemplarily shows a schematic structural diagram of a network device provided by the present application. As shown in FIG. 9, the network device 900 includes one or more remote radio units (remote radio units). unit (RRU) 901 and one or more baseband units (BBU) 902. The RRU 901 may be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 9011 and a radio frequency unit 9012. The RRU901 part is mainly used for the transceiver of radio frequency signals and the conversion of radio frequency signals and baseband signals. The BBU902 part can be called a processing unit, processor, etc. It is mainly used for baseband processing, such as channel coding, multiplexing, modulation, spread spectrum, etc., and is also used to control network equipment. RRU901 and BBU902 can be physically set together; they can also be physically separated, that is, distributed network equipment.

In an example, the BBU902 can be composed of one or more single boards, and multiple single boards can jointly support a radio access network with a single access standard (such as an LTE network), or can support wireless access with different access standards. network. The BBU 902 also includes a memory 9022 and a processor 9021. The memory 9022 is used to store necessary instructions and data. The processor 9021 is configured to control the network device to perform necessary actions, for example, to control the network device to execute the method executed by the network device in any of the foregoing embodiments. The memory 9022 and the processor 9021 may serve one or more boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, there are necessary circuits on each board.

On the uplink, the antenna 9011 receives the uplink signal (including data, etc.) sent by the communication device, and on the downlink, the antenna 9011 sends the downlink signal (including data and/or control information) to the communication device In the processor 9021, service data and signaling messages are processed, and these units perform processing according to the radio access technology adopted by the radio access network (for example, LTE, NR, and other access technologies of evolved systems). The processor 9021 is also configured to control and manage the actions of the network device, and is configured to execute the processing performed by the network device in the foregoing embodiment. The processor 9021 is also configured to support the network device to execute the method executed by the network device in FIG. 3.

It can be understood that FIG. 9 only shows a simplified design of the network device. In practical applications, the network equipment can include any number of antennas, memories, processors, radio frequency units, RRUs, BBUs, etc., and all network equipment that can implement the application are within the protection scope of the application.

In the embodiment of the present application, taking RRU901 as a transceiver as an example, and BBU902 as an example as a processor, the processor 9021 in the network device 900 can be used to read computer instructions in the memory 9022 to execute the configuration for each group Indication information, the group includes the first identifier. The transceiver is used to send grouping information to the terminal device, the grouping information indicates a first identifier included in one or more groups, and the grouping information also includes indication information corresponding to each grouping.

The processor 9021 may also implement any detailed functions of the network device in the method embodiment shown in FIG. 3, which will not be described in detail here, and may refer to the processing steps performed by the network device in the method embodiment shown in FIG. In an embodiment, the processor may independently implement the various methods in the foregoing embodiments, where the transceiver unit or the specific transceiver may also be one or more pins of the input and output of the processor.

It should be understood that the processor mentioned in the embodiments of this application may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), application specific integrated circuits (ASICs), and ready-made programmable gate arrays. Field programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.

It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (direct rambus RAM, DR RAM).

It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component, the memory (storage unit) is integrated in the processor.

It should be noted that the memories described in this application are intended to include, but are not limited to, these and any other suitable types of memories.

Based on the above content and the same concept, the present application provides a communication system. The communication system may include the aforementioned one or more terminal devices and one or more network devices. The terminal device can execute any method on the terminal device side, and the network device can execute any method on the network device side. The possible implementations of network equipment and terminal equipment can be found in the above introduction, which will not be repeated here.

It should be noted that the terms "first", "second", etc. in the specification embodiments and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence. order. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusion, for example, a series of steps or units are included. The method, system, product, or device is not necessarily limited to those clearly listed steps or units, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products, or devices.

It should be understood that in this application, "at least one (item)" refers to one or more, and "multiple" refers to two or more. "And/or" is used to describe the association relationship of associated objects, indicating that there can be three types of relationships, for example, "A and/or B" can mean: only A, only B, and both A and B , Where A and B can be singular or plural. The character "/" generally indicates that the associated objects are in an "or" relationship. "The following at least one item (a)" or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a). For example, at least one (a) of a, b or c can mean: a, b, c, "a and b", "a and c", "b and c", or "a and b and c" ", where a, b, and c can be single or multiple.

In the above-mentioned embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by a software program, it may be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. Instructions can be stored in a computer storage medium, or transmitted from one computer storage medium to another computer storage medium. For example, the instructions can be sent from a website, computer, server, or data center through wired (such as coaxial cable, optical fiber, digital user DSL) or wireless (such as infrared, wireless, microwave, etc.) to another website, computer, server or data center. A computer storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media. Usable media can be magnetic media (for example, floppy disks, hard drives, magnetic tapes, magneto-optical disks (MO), etc.), optical media (for example, CD, DVD, BD, HVD, etc.), or semiconductor media (for example, ROM, EPROM, EEPROM, etc.) Non-volatile memory (NAND FLASH), solid state disk (Solid State Disk, SSD), etc.

Those skilled in the art should understand that the embodiments of the present application can be provided as methods, systems, or computer program products. Therefore, the embodiments of the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

The embodiments of this application are described with reference to the flowcharts and/or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of this application. It should be understood that each process and/or block in the flowchart and/or block diagram, and the combination of processes and/or blocks in the flowchart and/or block diagram can be implemented by instructions. These instructions can be provided to the processors of general-purpose computers, special-purpose computers, embedded processors, or other programmable data processing equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing equipment are generated for realization A device with functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

These instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device, and the instruction device implements A function specified in a flow or multiple flows in a flowchart and/or a block or multiple blocks in a block diagram.

These instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so that the instructions executed on the computer or other programmable equipment provide Steps used to implement the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.

Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present application without departing from the spirit and scope of the present application. In this way, if these modifications and variations of the embodiments of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to include these modifications and variations.

Claims

A communication method, characterized in that it comprises:

Receiving grouping information from a network device, where the grouping information indicates a first identifier included in one or more groups, and the grouping information further includes indication information corresponding to each group;

Receiving first data from the network device;

Determine the first group to which the first data belongs, and determine whether feedback information needs to be sent to the network device according to the indication information corresponding to the first group, and the first group is one of the one or more groups.
The method according to claim 1, wherein the indication information includes a first type of parameter and/or a second type of parameter;

The first type of parameter is used to indicate feedback or no feedback;

The second type of parameter is used to indicate the threshold of the feedback decision parameter, and the threshold of the feedback decision parameter is used to: when it is determined that the value of the feedback decision parameter corresponding to the first data satisfies the threshold of the feedback decision parameter Send the feedback information to the network device; or, when it is determined that the value of the feedback decision parameter corresponding to the first data does not meet the threshold of the feedback decision parameter, the feedback information is not sent to the network device.
The method according to claim 2, wherein the feedback decision parameter includes any one or a combination of any of the following:

Distance, reference signal received power RSRP, signal to interference plus noise ratio SINR.
The method according to claim 2 or 3, wherein the indication information corresponding to the first group includes the first type parameters and the second type parameters;

The method also includes:

When it is determined that the first type parameter corresponding to the first group to which the first data belongs represents feedback, and the value of the feedback decision parameter corresponding to the first data satisfies the threshold of the feedback decision parameter, report to the network device Send the feedback information.
The method according to any one of claims 1 to 4, wherein the first identifier is a temporary mobile group identifier TMGI, a group radio network temporary identifier G-RNTI, a multicast control channel MCCH, or a single cell multicast Control signal SC-MCCH.
The method according to any one of claims 1 to 5, wherein the method further comprises:

It is determined that the feedback information needs to be sent to the network device, and when it is determined that the feedback information satisfies the feedback condition, the feedback information is sent to the network device;

Wherein, the feedback condition is: the first data is not parsed correctly.
A communication method, characterized in that it comprises:

Configure instructions for each group;

Send grouping information to the terminal device, where the grouping information indicates a first identifier included in one or more groups, and the grouping information further includes indication information corresponding to each group.
8. The method according to claim 7, wherein the indication information includes a first type of parameter and/or a second type of parameter;

The first type of parameter is used to indicate feedback or no feedback;

The second type of parameter is used to indicate the threshold of the feedback decision parameter, and the threshold of the feedback decision parameter is used to: the terminal device determines that the value of the feedback decision parameter corresponding to the first data satisfies the requirement of the feedback decision parameter. When the threshold is reached, the feedback information is sent; or, when it is determined that the value of the feedback decision parameter corresponding to the first data does not meet the threshold of the feedback decision parameter, the feedback information is not sent.
The method according to claim 8, wherein the feedback decision parameter includes any one or a combination of any of the following:

Distance, reference signal received power RSRP, signal to interference plus noise ratio SINR.
The method according to any one of claims 7 to 9, wherein the first identifier is a temporary mobile group identifier TMGI, a group wireless network temporary identifier G-RNTI, a multicast control channel MCCH, or a single-cell multicast Control signal SC-MCCH.
The method according to any one of claims 7 to 10, wherein the method further comprises:

Group multiple businesses.
The method according to any one of claims 7 to 11, wherein the method comprises:

Grouping the multiple services according to the service characteristics and/or service types of the multiple services;

The business characteristics include any one or a combination of any of the following:

Business reliability requirements, business coverage capabilities, business delay requirements, business data volume, business mobility requirements, and business priorities;

The business type includes any one of the following:

Enhanced mobile broadband eMBB, high-reliability and low-latency communication URLLC, massive machine communication mMTC, vehicle networking V2X, and Internet of Things IoT.
The method according to any one of claims 7 to 12, wherein the method further comprises:

Send the grouping information to the terminal device through high-layer signaling; or,

Sending the grouping information to the terminal device through a system message.
A communication device, characterized in that it comprises a transceiver and a processor:

The transceiver is configured to receive packet information from a network device and receive first data from the network device, where the packet information indicates a first identifier included in one or more packets, and the packet information further includes each Instruction information corresponding to the group;

The processor is configured to determine the first group to which the first data belongs, and determine whether feedback information needs to be sent to the network device according to the indication information corresponding to the first group, and the first group is the one or One of multiple groups.
The communication device according to claim 14, wherein the indication information includes a first type of parameter and/or a second type of parameter;

The first type of parameter is used to indicate feedback or no feedback;

The second type of parameter is used to indicate the threshold of the feedback decision parameter, and the threshold of the feedback decision parameter is used to: the terminal device determines that the value of the feedback decision parameter corresponding to the first data satisfies the requirement of the feedback decision parameter. When the threshold is set, send the feedback information to the network device; or, when it is determined that the value of the feedback decision parameter corresponding to the first data does not meet the threshold of the feedback decision parameter, the feedback information is not sent to the network device .
The communication device according to claim 15, wherein the feedback decision parameter includes any one or a combination of any of the following:

Distance, reference signal received power RSRP, signal to interference plus noise ratio SINR.
The communication device according to claim 15 or 16, wherein the indication information corresponding to the first group includes the first type parameter and the second type parameter;

The processor is specifically used for:

When it is determined that the first type parameter corresponding to the first group to which the first data belongs represents feedback, and the value of the feedback decision parameter corresponding to the first data satisfies the threshold of the feedback decision parameter, report to the network device Send the feedback information.
The communication device according to any one of claims 14 to 17, wherein the first identifier is a temporary mobile group identifier TMGI, a group wireless network temporary identifier G-RNTI, a multicast control channel MCCH, or a single cell multiple Broadcast control signal SC-MCCH.
The communication device according to any one of claims 14 to 18, wherein the processor is further configured to:

It is determined that the feedback information needs to be sent to the network device, and when it is determined that the feedback information satisfies the feedback condition, the feedback information is sent to the network device; wherein the feedback condition is: the first data.
A communication device, characterized in that it comprises a processor and a transceiver:

The processor is configured to configure indication information for each group;

The transceiver is configured to send grouping information to a terminal device, where the grouping information indicates a first identifier included in one or more groups, and the grouping information further includes indication information corresponding to each grouping.
The communication device according to claim 20, wherein the indication information includes a first type of parameter and/or a second type of parameter;

The first type of parameter is used to indicate feedback or no feedback;

The second type of parameter is used to indicate the threshold of the feedback decision parameter, and the threshold of the feedback decision parameter is used to: the terminal device determines that the value of the feedback decision parameter corresponding to the first data satisfies the requirement of the feedback decision parameter. When the threshold is set, send the feedback information to the network device; or, when it is determined that the value of the feedback decision parameter corresponding to the first data does not meet the threshold of the feedback decision parameter, the feedback information is not sent to the network device .
The communication device according to claim 21, wherein the feedback decision parameter includes any one or a combination of any of the following:

Distance, reference signal received power RSRP, signal to interference plus noise ratio SINR.
The communication device according to any one of claims 20 to 22, wherein the first identifier is a temporary mobile group identifier TMGI, a group wireless network temporary identifier G-RNTI, a multicast control channel MCCH, or a single cell multiple Broadcast control signal SC-MCCH.
The communication device according to any one of claims 20 to 23, wherein the processor is further configured to: group multiple services.
The communication device according to any one of claims 20 to 24, wherein the processor is further configured to:

Grouping the multiple services according to the service characteristics and/or service types of the multiple services;

The business characteristics include any one or a combination of any of the following:

Business reliability requirements, business coverage capabilities, business delay requirements, business data volume, business mobility requirements, and business priorities;

The business type includes any one of the following:

Enhanced mobile broadband eMBB, high-reliability and low-latency communication URLLC, massive machine communication mMTC, vehicle networking V2X, and Internet of Things IoT.
The communication device according to any one of claims 20 to 25, wherein the transceiver is specifically used for:

Send the grouping information to the terminal device through high-layer signaling; or send the grouping information to the terminal device through a system message.
A computer-readable storage medium, characterized in that a computer program or instruction is stored in the computer-readable storage medium, and when the computer program or instruction is executed by a communication device, the implementation is as in any one of claims 1 to 13 The method described in the item.
A computer program product, wherein the computer program product comprises a computer program or instruction, and when the computer program or instruction is executed by a communication device, the method according to any one of claims 1 to 13 is realized.