WO2022126446A1

WO2022126446A1 - Wireless communication method, terminal device, and network device

Info

Publication number: WO2022126446A1
Application number: PCT/CN2020/136928
Authority: WO
Inventors: 范江胜
Original assignee: Oppo广东移动通信有限公司
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2022-06-23
Also published as: CN116097841A

Abstract

A wireless communication method, a terminal device, and a network device. The method comprises: a terminal device obtains a reception situation of point-to-multipoint (PTM) transmission from a network device within a first time period; the terminal devices sends first information to the network device, the first information comprising the reception situation of the PTM transmission within the first time period obtained by the terminal device and/or decision information determined by the terminal device according to the reception situation.

Description

Method, terminal device and network device for wireless communication

technical field

The embodiments of the present application relate to the field of communications, and in particular, to a wireless communication method, a terminal device, and a network device.

Background technique

Multimedia Broadcast Multicast Service (MBMS) is a technology that transmits data from one data source (such as network equipment) to multiple terminal devices by sharing network resources. It can effectively utilize multimedia services while providing multimedia services. Network resources to realize broadcast and multicast of multimedia services at a higher rate (for example, 256kbps).

For the MBMS service, the broadcast receiving method without terminal feedback is adopted. In order to improve the reliability of data transmission, consider introducing the MBMS service that allows feedback. If all terminals in an MBMS service group use a common feedback resource, the network equipment cannot distinguish the The source of feedback information, so it is impossible to perform directional data retransmission at the granularity of terminal equipment. Indiscriminate retransmission will also cause UEs that do not need retransmission to passively accept data retransmission, which is not conducive to terminal power saving. On the other hand, if an MBMS service All terminals in the group are configured with dedicated feedback resources at UE granularity. Considering that the data reception and feedback conditions of many UEs in an MBMS group are similar, the use of independent feedback resources for each UE also wastes uplink resources on the network side to a certain extent.

Therefore, how to optimize the configuration of the MBMS feedback resources to take into account the power saving of the terminal and the improvement of resource utilization is an urgent problem to be solved.

SUMMARY OF THE INVENTION

The present application provides a wireless communication method, terminal device, and network device, which are beneficial to both terminal power saving and resource utilization improvement.

In a first aspect, a method for wireless communication is provided, including: a terminal device acquiring a reception situation of point-to-multipoint PTM transmission from a network device within a first time period; the terminal device sending a first information, where the first information includes the reception situation of the PTM transmission within the first time period acquired by the terminal device and/or the decision information determined by the terminal device according to the reception situation.

In a second aspect, a method for wireless communication is provided, including: a network device receiving first information sent by a terminal device, where the first information includes a point-to-multipoint PTM transmission acquired by the terminal device within a first time period. The reception situation and/or the decision information of the terminal device according to the reception situation.

In a third aspect, a terminal device is provided for executing the method in the above-mentioned first aspect or each implementation manner thereof.

Specifically, the terminal device includes a functional module for executing the method in the above-mentioned first aspect or each implementation manner thereof.

In a fourth aspect, a network device is provided for executing the method in the second aspect or each of its implementations.

Specifically, the network device includes functional modules for executing the methods in the second aspect or the respective implementation manners thereof.

In a fifth aspect, a terminal device is provided, including a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory to execute the method in the above-mentioned first aspect or each implementation manner thereof.

In a sixth aspect, a network device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the second aspect or each of its implementations.

In a seventh aspect, a chip is provided for implementing any one of the above-mentioned first aspect to the second aspect or the method in each implementation manner thereof.

Specifically, the chip includes: a processor for invoking and running a computer program from a memory, so that a device in which the device is installed executes any one of the above-mentioned first to second aspects or each of its implementations method.

In an eighth aspect, a computer-readable storage medium is provided for storing a computer program, the computer program causing a computer to execute the method in any one of the above-mentioned first aspect to the second aspect or each of its implementations.

In a ninth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions causing a computer to execute the method in any one of the above-mentioned first to second aspects or the implementations thereof.

In a tenth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method in any one of the above-mentioned first to second aspects or the respective implementations thereof.

Based on the above technical solutions, the terminal device can feed back the reception situation of the PTM transmission and/or the decision information according to the reception situation to the network device, so that the network device can transmit the corresponding PTM to the PTM according to the reception situation and/or the decision information Resource allocation in the receiving group is conducive to taking into account both the improvement of resource utilization and the power saving requirements of the terminal.

Description of drawings

FIG. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application.

FIG. 2 is a schematic interaction diagram of a method for wireless communication according to an embodiment of the present application.

FIG. 3 is a schematic interaction diagram of another wireless communication method provided according to an embodiment of the present application.

FIG. 4 is a schematic interaction diagram of still another wireless communication method provided according to an embodiment of the present application.

FIG. 5 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

FIG. 6 is a schematic block diagram of a network device provided according to an embodiment of the present application.

FIG. 7 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

FIG. 8 is a schematic block diagram of a chip provided according to an embodiment of the present application.

FIG. 9 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. With regard to the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

Optionally, the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device may be a station (STATION, ST) in the WLAN, and may be a cellular phone, a cordless phone, a Session Initiation Protocol (Session Initiation Protocol, SIP) phone, a Wireless Local Loop (WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).

In this embodiment of the present application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.

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

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks The network equipment (gNB) in the PLMN network in the future evolution or the network equipment in the NTN network, etc.

As an example and not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a High Elliptical Orbit (HEO) ) satellite etc. Optionally, the network device may also be a base station set in a location such as land or water.

In this embodiment of the present application, a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell). Pico cell), Femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

Exemplarily, a communication system 100 to which this embodiment of the present application is applied is shown in FIG. 1 . The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal, a terminal). The network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.

FIG. 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.

Optionally, the communication system 100 may further include other network entities such as a network controller and a mobility management entity, which are not limited in this embodiment of the present application.

It should be understood that, in the embodiments of the present application, a device having a communication function in the network/system may be referred to as a communication device. Taking the communication system 100 shown in FIG. 1 as an example, the communication device may include a network device 110 and a terminal device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. ; The communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.

In this embodiment of the present application, "predefinition" may be implemented by pre-saving corresponding codes, forms, or other means that can be used to indicate relevant information in devices (for example, including terminal devices and network devices). The implementation method is not limited. For example, predefined may refer to the definition in the protocol.

In the embodiments of the present application, the "protocol" may refer to a standard protocol in the communication field, for example, may include the LTE protocol, the NR protocol, and related protocols applied in future communication systems, which are not limited in this application.

In order to facilitate the understanding of the technical solutions of the embodiments of the present application, the technical solutions of the present application are described in detail below through specific embodiments. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, which all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

It should be understood that in this embodiment of the present application, NR can also be deployed independently. In the 5G network environment, in order to reduce air interface signaling, quickly restore wireless connections, and quickly restore data services, a new Radio Resource Control (Radio Resource Control) is defined. , RRC) state, namely RRC_INACTIVE (inactive) state. This state is different from the RRC_IDLE (idle) and RRC_CONNECTED (connected) states.

In the RRC_IDLE state: mobility is based on terminal device cell selection and reselection, paging is initiated by the Core Network (CN), and the paging area is configured by the CN. There is no terminal equipment access layer (Access Stratum, AS) context on the base station side, and there is no RRC connection.

In the RRC_CONNECTED state: there is an RRC connection, and the base station and the terminal device have the terminal device AS context. The network equipment knows the location of the terminal equipment at the specific cell level. Mobility is the mobility of network device control. Unicast data can be transmitted between the terminal equipment and the base station.

RRC_INACTIVE: Mobility is based on terminal device cell selection and reselection, there is a connection between CN-NR, terminal device AS context exists on a certain base station, paging is triggered by Radio Access Network (RAN), based on The paging area of the RAN is managed by the RAN, and the network equipment knows the location of the terminal device based on the level of the paging area of the RAN.

It should be noted that, in this embodiment of the present application, the inactive state may also be referred to as a deactivated state, which is not limited in the present application.

In LTE/LTE-A, MBMS has only broadcast bearer mode, but no multicast bearer mode.

The reception of MBMS service is applicable to UEs in RRC_CONNECTED or RRC_IDLE state.

In R13, Single Cell Point To Multiploint (SC-PTM) was introduced. SC-PTM is based on MBMS network architecture. Multi-cell/multicast Coordination Entity (MCE) decides whether to use SC-PTM transmission mode or Multicast Multicast Service Single Frequency Network (Multimedia Broadcast Multicast Service Single Frequency Network). , MBSFN) transmission mode.

In the related art, for MBMS services, there is no feedback mechanism for terminal data reception, and they are all based on a broadcast reception method that does not require feedback. In order to improve the reliability of data transmission, it is considered to introduce MBMS services that allow feedback. All terminals use a common feedback resource. Since the network device cannot distinguish the source of the feedback information, it cannot perform directional data retransmission at the UE granularity. Indiscriminate retransmission will also cause UEs that do not need retransmission to passively accept data retransmission, which is not conducive to Terminal power saving; on the other hand, if all terminals in an MBMS service group are configured with dedicated feedback resources at UE granularity, considering that many UEs in an MBMS group receive similar data reception feedback, each UE uses an independent feedback resource. To a certain extent, uplink resources on the network side are also wasted.

FIG. 2 is a schematic flowchart of a method 300 for wireless communication according to an embodiment of the present application. The method 200 may be executed by a network device in the communication system shown in FIG. 1 . As shown in FIG. 2 , the method 200 includes the following contents :

S210, the terminal device acquires the reception situation of the point-to-multipoint PTM transmission from the network device within the first time period;

S220: The terminal device sends first information to the network device, where the first information includes the reception status of the PTM transmission within the first time period acquired by the terminal device and/or the The decision information determined by the receiving situation.

Optionally, in this embodiment of the present application, the PTM transmission may refer to any point-to-multipoint transmission manner, such as multicast transmission, broadcast transmission, or multicast transmission.

In this embodiment of the present application, the network device may perform PTM transmission through a physical downlink shared channel (Physical Downlink Shared Channel, PDSCH). That is, PTM transmission can be carried in PDSCH. In other embodiments, the PTM transmission may be carried in other data channels, which is not limited in this embodiment of the present application.

It should be understood that the embodiments of the present application do not specifically limit the number of terminal devices on which the network device performs PTM transmission.

In this embodiment of the present application, multiple terminal devices corresponding to one PTM transmission may be considered as a PTM data receiving group, and the network device performs PTM transmission in units of PTM data receiving groups.

Optionally, in some embodiments, the first information may be sent through radio resource control (Radio Resource Control, RRC) dedicated signaling, that is, the first information is not transmitted on the feedback resources configured by the network device, Instead, it is sent over the control channel.

Optionally, in some embodiments, the first information may include time information for the terminal device to count the receiving conditions of the PTM transmission, that is, time information corresponding to the first time period.

It should be understood that the present application does not limit the indication manner of the time information corresponding to the first time period.

In some embodiments, the time information corresponding to the first time period may be indicated by a relative duration. For example, the time information corresponding to the first time period includes a first moment and a first time period, and the first time period is The time period of the first duration before the first moment, that is, the first duration is calculated forward from the first moment.

Optionally, the first time may be the sending time of the first information, that is, the reporting time of the first information may be used as a reference, and in other embodiments, other time may also be used as a reference. It is not limited to this.

In other embodiments, the time information corresponding to the first time period may be indicated by an absolute duration. For example, the first time period may be indicated by a statistical time window. In this case, the first time period corresponding to The time information may include a start time and an end time of the first time period.

Optionally, in some embodiments, the terminal device may also send auxiliary information for resource configuration to the network device. Optionally, the auxiliary information may include decision information for subsequent data transmission determined by the terminal device according to the received conditions of the PTM transmission statistics within the period of time, and further send the decision information to the network device, so as to facilitate. The network device configures resources according to the decision information.

As an example and not a limitation, the decision information is used to indicate at least one of the following:

feedback resources expected by the terminal device for feeding back the PTM transmission;

the terminal device needs dedicated feedback resources for feeding back the PTM transmission;

The terminal device expects to receive broadcast or multicast data through a point-to-point (Point To Point, PTP) mode;

The terminal device wishes to leave the current PTM data receiving group.

For example, the terminal device may determine that the network device needs to allocate a shared feedback resource when the reception conditions are good.

For another example, in the case of poor reception, the terminal device may determine that the network device needs to allocate dedicated feedback resources, or expect to receive data from the network device in a point-to-point (Point To Point, PTP) mode, or leave the current The PTM data receiving group.

In this embodiment of the present application, the terminal device notifies the network device of the reception situation of the PTM transmission that is counted over a period of time, so that the network device can configure resources for the PTM receiving group according to the reception situation, so as to improve resource utilization. and end-device power saving.

Optionally, the resources here may include feedback resources for feeding back whether PTM transmission and reception are successful, PTM or PTP configuration for downlink data reception, such as data radio bearer (Data Radio Bearer, DRB) configuration, radio link control ( Radio Link Control, RLC) configuration, media access control (Media Access Control, MAC) layer configuration or physical layer (layer 1) configuration, etc., for example, can be used to realize the conversion from PTM to PTP mode.

For example, when the receiving condition of the terminal device is good, the public feedback resource is configured, and when the receiving condition is poor, the dedicated feedback resource is configured.

Optionally, in some embodiments, the receiving condition of the PTM transmission in the first time period includes at least one of the following:

The reception situation of the PTM transmission according to the MAC layer statistics of the terminal device in the first time period, or in other words, the reception situation of the MAC layer PTM transmission statistics of the terminal device;

The reception situation of the PTM transmission according to the statistics of the RLC layer of the terminal device in the first time period, or in other words, the reception situation of the PTM transmission of the RLC layer according to the statistics of the terminal device;

In the first period of time, the receiving situation of the PTM transmission according to the Packet Data Convergence Protocol (PDCP) layer of the terminal device, or in other words, the receiving situation of the PTM transmission at the PDCP layer according to the statistics of the terminal device .

Optionally, in some embodiments, the receiving condition of the PTM transmission statistics of the MAC layer of the terminal device may be the granularity of the terminal device. For example, the reception situation may include the reception situation of PTM transmissions corresponding to all Hybrid Automatic Repeat reQuest (HARQ) processes of the terminal device according to the MAC layer statistics of the terminal device, that is, all HARQ The reception status of the PTM transmission corresponding to the process is combined and counted.

Optionally, the HARQ process of the terminal device may include all downlink HARQ processes configured by the network device to the terminal device, or may also include downlink HARQ processes actually used by the network device for PTM transmission.

In some embodiments, the reception situation of the PTM transmission statistics of the MAC layer of the terminal device may refer to the reception success situation of the MAC layer data, the reception failure situation, the situation of needing to feed back HARQ NACK, the situation of needing to feedback HARQ ACK and other related information, The present application is not limited to this.

Optionally, the MAC layer data may include a MAC service data unit (SDU).

Example one:

In the first time period, the receiving situation of the PTM transmission statistics of the medium access control MAC layer of the terminal device includes at least one of the following:

The number of times of Hybrid Automatic Repeat request Negative Acknowledgement (HARQ NACK) needs to be fed back within the first time period;

The number of times of Hybrid Automatic Repeat request Acknowledgement (HARQ ACK) needs to be fed back within the first time period;

The number information of the MAC SDUs that failed to receive in the first time period;

Information on the proportion of MAC SDUs that fail to receive within the first time period to all MAC SDUs received within the first time period;

Information on the number of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period;

Information on the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

The number information of successfully received MAC SDUs in the first time period;

Information on the proportion of successfully received MAC SDUs within the first time period to all MAC SDUs received within the first time period.

In the above example 1, the receiving conditions of the MAC layer statistics are based on terminal equipment, or in other words, the receiving conditions of all HARQ processes are combined and counted.

Example two:

The receiving conditions of the PTM transmissions according to the MAC layer statistics of the terminal device include at least one of the following:

The number of times the HARQ NACK needs to be fed back corresponding to each hybrid automatic retransmission HARQ process of the terminal device within the first time period;

The number of times the HARQ ACK needs to be fed back corresponding to each HARQ process of the terminal device in the first time period;

Information on the number of MAC SDUs that fail to receive corresponding to each HARQ process of the terminal device within the first time period;

Information on the proportion of MAC SDUs that fail to receive corresponding to each HARQ process of the terminal device in the first time period to all MAC SDUs received in the first time period;

Information on the number of MAC SDUs that reach the maximum number of HARQ retransmissions corresponding to each HARQ process of the terminal device within the first time period;

Information on the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions corresponding to each HARQ process of the terminal device in the first time period to all MAC SDUs received in the first time period;

Information on the number of successfully received MAC SDUs corresponding to each HARQ process of the terminal device in the first time period;

Information on the proportion of successfully received MAC SDUs corresponding to each HARQ process of the terminal device in the first time period to all MAC SDUs received in the first time period.

In the above example 2, the receiving situation of the MAC layer statistics is based on the granularity of the HARQ process, or in other words, the receiving situation of each HARQ process is separately counted.

It should be understood that, in this embodiment of the present application, the number of failures to receive the same data may be recorded in combination, that is, the number of failed receptions of the data may be recorded only once, or the number of failed receptions of the same data may be recorded independently. , that is, each reception failure event of the data is recorded separately.

In some embodiments, the reception status of the PTM transmission according to the RLC layer statistics of the terminal device may refer to the RLC layer data reception success status, reception failure status and other related information, but the present application is not limited thereto.

Optionally, the RLC layer data may include RLC SDUs.

In some embodiments of the present application, the receiving conditions of the PTM transmissions counted by the RLC layer of the terminal device may be at the granularity of the terminal device. In other embodiments, the receiving conditions of the PTM transmissions counted by the RLC layer of the terminal equipment May be logical channel granularity. That is to say, the receiving conditions of all logical channels of the terminal device may be combined and counted, or the receiving conditions of each logical channel may be counted separately.

Example one:

The reception status of the PTM transmissions according to the radio link control RLC layer statistics of the terminal device in the first time period includes at least one of the following:

information on the number of RLC SDUs that fail to receive within the first time period;

Information on the proportion of RLC SDUs that fail to receive within the first time period to all RLC SDUs received within the first time period;

Number information of successfully received RLC SDUs in the first time period;

Information on the ratio of RLC SDUs successfully received in the first time period to all RLC SDUs received in the first time period;

Information on the number of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period;

Information on the ratio of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period to all RLC SDUs received within the first time period;

The sequence number SN corresponding to the RLC SDU that reaches the maximum number of RLC retransmissions within the first time period.

In this example 1, the receiving conditions of the RLC layer statistics of the terminal equipment may be at the granularity of the terminal equipment, that is, the data receiving conditions of all logical channels of the terminal equipment may be combined and counted.

Example two:

The receiving situation of the PTM transmission statistics of the RLC layer of the terminal device includes at least one of the following:

Information on the number of RLC SDUs that fail to receive corresponding to each logical channel of the terminal device in the first time period;

Information on the proportion of RLC SDUs that fail to receive corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

Information on the number of successfully received RLC SDUs corresponding to each logical channel of the terminal device in the first time period;

Information on the proportion of successfully received RLC SDUs corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

Information on the number of RLC SDUs that reach the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device in the first time period;

Information on the ratio of RLC SDUs that reach the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

The SN corresponding to the RLC SDU that reaches the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device in the first time period.

In the second example, the reception status of the RLC layer statistics of the terminal device may be based on the logical channel granularity, that is, the data reception status of each logical channel of the terminal device may be separately counted.

In some embodiments, the reception status of the PTM transmission statistics collected by the PDCP layer of the terminal device may refer to relevant information such as successful reception status of PDCP layer data, reception failure status, etc., but the present application is not limited thereto.

Optionally, PDCP layer data may include PDCP SDUs.

In some embodiments of the present application, the receiving conditions of the PTM transmissions counted by the PDCP layer of the terminal device may be terminal device granularity. In other embodiments, the receiving conditions of the PTM transmissions that are counted by the PDCP layer of the terminal device Can be DRB or PDCP granular. That is to say, the receiving conditions of all DRBs of the terminal device may be combined and counted, or the receiving conditions of each DRB may be counted separately.

Example one:

The receiving conditions of the PTM transmissions according to the PDCP layer statistics of the terminal equipment in the first time period include at least one of the following:

The number information of PDCP SDUs that fail to receive in the first time period;

Information on the proportion of PDCP SDUs that fail to receive within the first time period to all PDCP SDUs received within the first time period;

Number information of successfully received PDCP SDUs in the first time period;

Information on the ratio of PDCP SDUs successfully received in the first time period to all PDCP SDUs received in the first time period;

Information on the number of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

Information on the proportion of PDCP SDUs that reach the maximum PDCP discard duration within the first time period to all PDCP SDUs received within the first time period;

The SN corresponding to the PDCP SDU that reaches the maximum PDCP discard duration within the first time period.

In the first example, the receiving conditions of the PDCP layer statistics of the terminal equipment may be based on the granularity of the terminal equipment, that is, the data receiving conditions of all DRBs of the terminal equipment may be combined and counted.

Example two:

Information on the number of PDCP SDUs that fail to receive corresponding to each data radio bearer DRB of the terminal device within the first time period;

Information on the proportion of PDCP SDUs that fail to receive corresponding to each DRB of the terminal device in the first time period to all PDCP SDUs received in the first time period;

Information on the number of successfully received PDCP SDUs corresponding to each DRB of the terminal device in the first time period;

Information on the proportion of successfully received PDCP SDUs corresponding to each DRB of the terminal device in the first time period to all PDCP SDUs received in the first time period;

Information on the number of PDCP SDUs that reach the maximum PDCP discard duration corresponding to each DRB of the terminal device in the first time period;

Information on the proportion of PDCP SDUs corresponding to each DRB of the terminal device that reach the maximum PDCP discard duration in the first time period to all PDCP SDUs received in the first time period;

The SN corresponding to the PDCP SDU that reaches the maximum PDCP discard duration corresponding to each DRB of the terminal device in the first time period.

In the second example, the receiving situation of the PDCP layer statistics of the terminal device may be based on DRB granularity, that is, the data receiving situation of each DRB of the terminal device may be separately counted.

Optionally, in some embodiments, as shown in FIG. 3 , the method 200 further includes:

S205, the terminal device sends a first message to the network device, where the first message is used to request the network device to feed back the reception situation of the PTM transmission and/or the decision information.

Optionally, the first message may be a newly added message or signaling, or may also be an existing message or signaling used for information exchange between the terminal device and the network device, such as RRC dedicated signaling. . In some embodiments, indication information may be included in the existing RRC dedicated signaling to indicate that the RRC dedicated signaling is used to request to send the first information.

S206: The network device sends a first response message to the terminal device, where the first response message is used to indicate that the network device agrees to the terminal device to feed back the reception situation of the PTM transmission and/or the decision information.

In some embodiments, the S210 may include:

The terminal device sends the first information to the network device when receiving the first response message from the network device. That is, the information feedback is being performed under the condition that the network device agrees to the feedback.

Optionally, in some embodiments, the method 200 further includes:

The terminal device receives the first configuration information and/or the second configuration information sent by the network device, wherein the first configuration information is used to configure the content included in the first information reported by the terminal device, The second configuration information is used to configure a format in which the terminal device reports the first information.

For example, the second configuration information is used to configure the format of reporting the first information, and/or the manner of collecting statistics on the first information, for example, whether to record the failure to receive the same data in a combined record or separately.

Further, the terminal device determines the content included in the first information according to the first configuration information; and/or determines a format for reporting the first information according to the second configuration information.

Optionally, in some embodiments, the first configuration information is used to configure the first information reported by the terminal device to include at least one of the following:

The reception situation of the PTM transmission statistics collected by the MAC layer of the terminal device in the first time period;

The reception situation of the PTM transmission statistics collected by the RLC layer of the terminal device in the first time period;

The receiving situation of the PTM transmission according to the PDCP layer statistics of the terminal device in the first time period.

It should be understood that in the first time period shown, the receiving situation of the PTM transmission statistics by the MAC layer of the terminal device, the receiving situation of the PTM transmission statistics by the RLC layer of the terminal device, the PTM transmission statistics by the PDCP layer of the terminal device For the specific content of the reception situation of the transmission, refer to the relevant descriptions in the foregoing embodiments, which are not repeated here for brevity.

Optionally, in some embodiments, the second configuration information includes at least one of the following:

The format configuration of the receiving situation of the PTM transmission reported by the terminal equipment according to the MAC layer statistics;

Format configuration for the terminal equipment to report the reception situation of the PTM transmission statistics of the RLC layer;

The format configuration for the terminal equipment to report the receiving situation of the PTM transmission statistics of the PDCP layer.

In some embodiments, the format configuration in which the terminal device reports the reception situation of the PTM transmission of the MAC layer statistics is configured to configure at least one of the following:

Whether to report the number of times the HARQ NACK needs to be fed back within the first time period;

Whether to report the number of times the HARQ ACK needs to be fed back within the first time period;

Whether to report the number of MAC SDUs that failed to receive within the first time period;

Whether to report information on the proportion of MAC SDUs that fail to receive within the first period of time to all MAC SDUs received within the first period of time;

Whether to report the number of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period;

Whether to report the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

Whether to report the number of successfully received MAC SDUs in the first time period;

Whether to report information on the proportion of successfully received MAC SDUs within the first time period to all MAC SDUs received within the first time period;

Whether multiple retransmission failure events of the same data are combined records or independent records;

Whether to report the reception status corresponding to each HARQ process of the terminal device.

Optionally, in some embodiments, the terminal device may indicate the above format configuration in a bitmap manner.

In some embodiments, the format configuration in which the terminal device reports the reception situation of the PTM transmission of the RLC layer statistics is configured to configure at least one of the following:

Whether to report the information on the number of RLC SDUs that failed to receive within the first time period;

Whether to report information on the ratio of RLC SDUs that fail to receive within the first time period to all RLC SDUs received within the first time period;

Whether to report the information on the number of successfully received RLC SDUs within the first time period;

Whether to report information on the ratio of successfully received RLC SDUs within the first time period to all RLC SDUs received within the first time period;

Whether to report the information on the number of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period;

Whether to report the ratio of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period to all RLC SDUs received within the first time period;

Whether to report the SN corresponding to the RLC SDU that reaches the maximum number of RLC retransmissions within the first time period;

Whether to report the reception status corresponding to each logical channel of the terminal device.

In some embodiments, the above format configuration may be indicated by a bitmap.

In some embodiments, the format configuration in which the terminal device reports the reception situation of the PTM transmission of the PDCP layer statistics is configured to configure at least one of the following:

Whether to report the number of PDCP SDUs that failed to receive within the first time period;

Whether to report information on the ratio of PDCP SDUs that fail to receive within the first time period to all PDCP SDUs received within the first time period;

Whether to report the number of successfully received PDCP SDUs in the first time period;

Whether to report information on the proportion of PDCP SDUs successfully received in the first time period to all PDCP SDUs received in the first time period;

Whether to report the information on the number of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

Whether to report the ratio of PDCP SDUs that reach the maximum PDCP discard duration within the first time period to all PDCP SDUs received within the first time period;

Whether to report the SN corresponding to the PDCP SDU that reaches the maximum PDCP discard duration within the first time period;

Whether to report the reception situation corresponding to each DRB of the terminal device.

Optionally, in some embodiments, the terminal device may also send the first information to the terminal device when the first reporting condition is satisfied.

Optionally, the first reporting condition includes at least one of the following:

The first timer times out;

The receiving conditions of the PTM transmissions counted by the terminal device meet the reporting threshold.

Optionally, the duration T1 of the first timer may be configured by a network device, for example, the network device may configure the duration of the first timer through dedicated signaling or system information.

Optionally, in some embodiments, the terminal device is further configured with an upper limit of the number of reports and/or a reporting duration T, wherein within the reporting duration, the terminal device periodically performs the reporting based on the first timer. report the first information. That is, within the reporting period T, the first information is reported with a period of T1. When the number of reporting times reaches the upper limit of the number of reporting times, the reporting of the first information is stopped.

Optionally, the upper limit of the number of reports may be configured by the network device, for example, the network device may configure the upper limit of the number of reports through dedicated signaling or system information.

Optionally, the reporting duration may be configured by a network device, for example, the network device may configure the reporting duration through dedicated signaling or system information.

In other embodiments, the duration of the first timer, the upper limit of the number of reporting times, and the reporting duration may also be predefined or determined by the terminal device, which is not limited to this application.

In other embodiments of the present application, the terminal device may also report the first information under the condition that the statistical reception of the PTM transmission satisfies a specific condition. For example, the receiving conditions of the PTM transmissions counted by the terminal device meet the reporting threshold.

In some embodiments, the receiving situation of the PTM transmission statistics collected by the terminal device meeting the reporting threshold includes at least one of the following:

The reception situation of the PTM transmission statistics of the MAC layer of the terminal device meets the MAC layer reporting threshold;

The reception situation of the PTM transmission counted by the RLC layer of the terminal device satisfies the RLC layer reporting threshold;

The receiving conditions of the PTM transmissions counted by the PDCP layer of the terminal device satisfy the PDCP layer reporting threshold.

As an example and not a limitation, the MAC layer reporting threshold includes at least one of the following:

The threshold for the number of times that HARQ NACKs need to be fed back within the first time period;

The threshold for the number of times the HARQ ACK needs to be fed back within the first time period;

The threshold of the number of MAC SDUs that fail to receive within the first time period;

a threshold value of the proportion of MAC SDUs that fail to be received within the first time period to all MAC SDUs received within the first time period;

The threshold of the number of MAC SDUs that reaches the maximum number of HARQ retransmissions within the first time period;

A threshold value of the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

The threshold of the number of successfully received MAC SDUs in the first time period;

A threshold value of the proportion of successfully received MAC SDUs within the first time period to all MAC SDUs received within the first time period.

Optionally, in some embodiments, the MAC layer reporting threshold may further include thresholds corresponding to each statistic when the HARQ process is the granularity of statistics, or, respectively, when the receiving failures of the same data are combined and counted or separately counted. The threshold value of , etc., the present application is not limited to this.

As an example and not a limitation, the RLC layer reporting threshold includes at least one of the following:

The threshold of the number of RLC SDUs that fail to receive within the first time period;

a threshold value of the proportion of RLC SDUs that fail to be received within the first time period to all RLC SDUs received within the first time period;

The threshold of the number of successfully received RLC SDUs in the first time period;

a threshold for the proportion of successfully received RLC SDUs within the first time period to all RLC SDUs received within the first time period;

The threshold of the number of RLC SDUs reaching the maximum number of RLC retransmissions within the first time period;

A threshold value of the proportion of RLC SDUs that reach the maximum number of RLC retransmissions in the first time period to all RLC SDUs received in the first time period.

Optionally, in some embodiments, the RLC layer reporting threshold may further include thresholds corresponding to each statistic when the logical channel is used as granularity statistics, or, respectively, when the receiving failures of the same data are combined and counted or separately counted. The threshold of , etc., the present application is not limited to this.

As an example and not a limitation, the PDCP layer reporting threshold includes at least one of the following:

The threshold of the number of PDCP SDUs that fail to receive within the first time period;

a threshold value of the proportion of PDCP SDUs that fail to be received within the first time period to all PDCP SDUs received within the first time period;

the number threshold of successfully received PDCP SDUs in the first time period;

A threshold value of the proportion of PDCP SDUs that are successfully received in the first time period to all PDCP SDUs received in the first time period;

The number threshold of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

A threshold for the proportion of PDCP SDUs that reach the maximum PDCP discard duration in the first time period to all PDCP SDUs received in the first time period.

Optionally, in some embodiments, the PDCP layer reporting threshold may further include thresholds corresponding to each statistic when the DRB is used as the granularity for statistics, or, respectively, when the receiving failures of the same data are combined and counted or separately counted. Thresholds, etc., the present application is not limited to this.

Optionally, in some embodiments, the first configuration information may be included in the first response message, that is, the network device may configure the first information reported by the terminal device while agreeing to the terminal device to report the first information. the content of the information.

Optionally, in some embodiments, the second configuration information may be included in the first response message, that is, the network device may configure the terminal device to report the first information while agreeing to the terminal device to report the first information. format configuration.

Optionally, in some embodiments, as shown in FIG. 4 , the method 200 further includes:

S202: The terminal device receives third configuration information sent by the network device, where the third configuration information is used to configure at least one reporting condition for the terminal device to report the first information.

In some embodiments, when the network device configures the at least one reporting condition, the terminal device may report the first information according to the at least one reporting condition.

For example, in S204, the terminal device may report the first information under the condition that the first reporting condition is satisfied.

Optionally, in some embodiments, the terminal device may further send the first message to the network device in the case of determining that the reporting condition is satisfied, and in the case of receiving the first response message, The first information is sent to the network device.

Optionally, in some other embodiments, as shown in FIG. 4 , the method 200 further includes:

The terminal device receives a second message sent by the network device, where the second message is used to activate one or more reporting conditions in the at least one reporting condition.

That is, the network device can activate part of the reporting conditions in the configured at least one reporting condition, and further, the terminal device can report the first information according to the activated reporting conditions. In this case, the first reporting condition may be a configured and activated reporting condition.

Optionally, in some embodiments, the second message includes at least one of the following:

Downlink control information DCI, MAC signaling, radio resource control RRC signaling.

That is, the network device can activate the configured reporting conditions through DCI, MAC signaling or RRC signaling.

It should be understood that the present application does not limit the activation method of the reporting condition. The following describes the activation of the reporting condition through DCI as an example. The activation method through other signaling is similar, and is not repeated here for brevity.

As an example, the second message may include first indication information, where the first indication information is used to indicate whether the at least one reporting condition is activated. For example, the first indication information may be 1 bit, and the A 1-bit value of 1 indicates that both are activated, and a value of 0 indicates that none of them is activated.

As another example, it can be indicated in a bitmap manner. For example, the second message may include second indication information, where the second indication information includes at least one bit, and each bit in the at least one bit corresponds to one reporting condition in the at least one reporting condition , the value of each bit is used to indicate whether the corresponding reporting condition is activated, for example, a value of 1 indicates activation, and a value of 0 indicates inactivation. For example, if the at least one reporting condition includes 4 reporting conditions, the second indication information may include 4 bits, and each bit corresponds to one reporting condition. If the value of the second indication information is 1001, it means activation The first and fourth escalation conditions.

In some embodiments, the second indication information may be borne by a reserved domain in the DCI, or a newly added domain, which is not limited in this application.

As another example, the second message may include third indication information, each of the reporting conditions in the at least one reporting condition corresponds to a corresponding identifier, the third indication information may include at least one bit, the at least one The bit value has a corresponding relationship with the identifier of the reporting condition, and the activated reporting condition can be determined according to the value of the at least one bit. For example, if the at least one reporting condition includes 8 reporting conditions (referred to as reporting condition 0 to reporting condition 7), then the third indication information may include 3 bits, and the 3 bits have different values It can indicate different reporting conditions among the 8 reporting conditions. For example, the value is 000, which means that reporting condition 0 is activated, and the value is 100, which means that reporting condition 4 is activated.

To sum up, the terminal device can feed back the reception situation of the PTM transmission and/or the decision information according to the reception situation to the network device, so that the network device can, according to the reception situation and/or the decision information, send a corresponding PTM reception group to the PTM transmission. Resource allocation is conducive to taking into account both the improvement of resource utilization and the demand for terminal power saving.

The method embodiments of the present application are described in detail above with reference to FIGS. 2 to 4 , and the apparatus embodiments of the present application are described in detail below with reference to FIGS. 5 to 9 . It should be understood that the apparatus embodiments and the method embodiments correspond to each other, and are similar to For the description, refer to the method embodiment.

FIG. 5 shows a schematic block diagram of a terminal device 400 according to an embodiment of the present application. As shown in FIG. 5, the terminal device 400 includes:

a processing unit 410, configured to acquire the reception situation of the point-to-multipoint PTM transmission from the network device within the first time period;

The communication unit 420 is configured to send first information to the network device, where the first information includes the receiving situation of the PTM transmission within the first time period acquired by the terminal device and/or the The decision information determined by the receiving situation.

Optionally, in some embodiments, the first information further includes time information corresponding to the first time period.

Optionally, in some embodiments, the time information corresponding to the first time period includes a first moment and a first duration, and the first time period is a time period of the first duration before the first moment; or

The time information corresponding to the first time period includes a start time and an end time of the first time period.

Optionally, in some embodiments, the first moment is the moment when the first information is sent.

Optionally, in some embodiments, the receiving condition of the PTM transmission within the first time period includes at least one of the following:

The reception situation of the PTM transmission according to the media access control MAC layer of the terminal device in the first time period;

The reception situation of the PTM transmission according to the radio link control RLC layer statistics of the terminal device in the first time period;

The reception situation of the PTM transmission according to the statistics of the PDCP layer of the packet data convergence protocol of the terminal device in the first time period.

Optionally, in some embodiments, the receiving condition of the PTM transmission statistics of the medium access control MAC layer of the terminal device in the first time period includes at least one of the following:

The number of times of HARQ NACK that needs to be fed back within the first time period;

The number of times the HARQ ACK needs to be fed back within the first time period;

Information on the number of MAC service data units SDUs that fail to receive within the first time period;

Information on the number of successfully received MAC SDUs within the first time period;

Optionally, in some embodiments, the receiving conditions of the PTM transmissions according to the MAC layer statistics of the terminal device include at least one of the following:

The number of times the HARQ NACK needs to be fed back corresponding to each hybrid automatic request retransmission HARQ process of the terminal device within the first time period;

Information on the number of successfully received MAC SDUs corresponding to each HARQ process of the terminal device within the first time period;

Optionally, in some embodiments, the reception situation of the PTM transmission statistics collected by the radio link control RLC layer of the terminal device in the first time period includes at least one of the following:

Information on the number of RLC SDUs that failed to receive within the first time period;

Information on the number of successfully received RLC SDUs within the first time period;

Information on the proportion of successfully received RLC SDUs within the first time period to all RLC SDUs received within the first time period;

Information on the number of RLC SDUs that have reached the maximum number of RLC retransmissions within the first time period;

Optionally, in some embodiments, the reception situation of the PTM transmission statistics of the RLC layer of the terminal device includes at least one of the following:

Information on the number of failed RLC SDUs corresponding to each logical channel of the terminal device in the first time period;

Information on the ratio of RLC SDUs that fail to receive corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

Information on the number of successfully received RLC SDUs corresponding to each logical channel of the terminal device within the first time period;

Information on the number of RLC SDUs that reach the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device within the first time period;

Information on the ratio of the RLC SDUs that reach the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

The SN corresponding to the RLC SDU that reaches the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device within the first time period.

Optionally, in some embodiments, the receiving situation of the PTM transmission statistics of the PDCP layer of the terminal device in the first time period includes at least one of the following:

Information on the number of PDCP SDUs that failed to receive within the first time period;

Information on the number of PDCP SDUs successfully received within the first time period;

Information on the number of successfully received PDCP SDUs corresponding to each DRB of the terminal device within the first time period;

Information on the number of PDCP SDUs corresponding to each DRB of the terminal device that reaches the maximum PDCP discard duration within the first time period;

Optionally, in some embodiments, the communication unit 420 is further configured to:

Receive first configuration information and/or second configuration information sent by the network device, where the first configuration information is used to configure the content included in the first information reported by the terminal device, and the second configuration information is used to configure The format in which the terminal device reports the first information.

Optionally, in some embodiments, the processing unit 410 is further configured to:

Determine the content included in the first information according to the first configuration information; and/or

The format for reporting the first information is determined according to the second configuration information.

The reception situation of the PTM transmission according to the MAC layer statistics of the terminal device in the first time period;

The reception situation of the PTM transmission according to the statistics of the RLC layer of the terminal device in the first time period;

The format configuration for the terminal equipment to report the reception status of the PTM transmission statistics of the MAC layer;

The format configuration for the terminal equipment to report the reception situation of the PTM transmission statistics of the RLC layer;

The format configuration for the terminal equipment to report the reception status of the PTM transmission statistics of the PDCP layer.

Optionally, in some embodiments, the format configuration in which the terminal device reports the reception situation of the PTM transmission of the MAC layer statistics is configured to configure at least one of the following:

Whether to report the information on the proportion of MAC SDUs that fail to receive within the first period of time to all MAC SDUs received within the first period of time;

Whether to report the information on the number of MAC SDUs that have reached the maximum number of HARQ retransmissions within the first time period;

Whether to report the ratio of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

Whether to report the number of successfully received MAC SDUs within the first time period;

Optionally, in some embodiments, the format configuration in which the terminal device reports the reception situation of the PTM transmission statistics of the RLC layer is configured to configure at least one of the following:

Whether to report the information on the ratio of RLC SDUs that failed to be received within the first time period to all RLC SDUs received within the first time period;

Whether to report the number of successfully received RLC SDUs within the first time period;

Whether to report the information on the number of RLC SDUs that have reached the maximum number of RLC retransmissions within the first time period;

Optionally, in some embodiments, the format configuration in which the terminal device reports the reception situation of the PTM transmission statistics of the PDCP layer is configured to configure at least one of the following:

Whether to report information on the proportion of PDCP SDUs that fail to receive within the first time period to all PDCP SDUs received within the first time period;

Whether to report the number of successfully received PDCP SDUs within the first time period;

Whether to report the number of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

Whether to report the reception status corresponding to each DRB of the terminal device.

A first message is sent to the network device, where the first message is used to request the network device to feed back the reception situation of the PTM transmission and/or the decision information.

In the case of receiving the first response message of the network device, the first information is sent to the network device, where the first response message is used to indicate that the network device agrees to the terminal device to feed back the receiving situation of the PTM transmission and/or the decision information.

Optionally, in some embodiments, the first response message includes first configuration information and/or second configuration information, wherein the first configuration information is used to configure the information included in the first information reported by the terminal device content, the second configuration information is used to configure the format in which the terminal device reports the first information.

If the first reporting condition is satisfied, the first information is sent to the network device.

Optionally, in some embodiments, the first reporting condition includes at least one of the following:

The first timer times out;

The receiving status of the PTM transmissions counted by the terminal device satisfies the reporting threshold.

Optionally, the duration of the first timer is configured by the network device through dedicated signaling or system information.

Optionally, in some embodiments, the terminal device is further configured with an upper limit of the number of reports and/or a reporting duration, wherein within the reporting duration, the terminal device periodically reports the first information based on the first timer .

Optionally, in some embodiments, the receiving situation of the PTM transmission statistics collected by the terminal device satisfies the reporting threshold includes at least one of the following:

The receiving condition of the PTM transmission statistics by the MAC layer of the terminal device meets the MAC layer reporting threshold;

The reception situation of the PTM transmission according to the RLC layer statistics of the terminal device satisfies the RLC layer reporting threshold;

Optionally, in some embodiments, the MAC layer reporting threshold includes at least one of the following:

The threshold for the number of times HARQ NACK needs to be fed back within the first time period;

The threshold value of the proportion of MAC SDUs that fail to be received within the first time period to all MAC SDUs received within the first time period;

The threshold of the number of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period;

The threshold of the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

The threshold of the number of successfully received MAC SDUs within the first time period;

The threshold value of the proportion of successfully received MAC SDUs in the first time period to all MAC SDUs received in the first time period.

Optionally, in some embodiments, the RLC layer reporting threshold includes at least one of the following:

The threshold value of the proportion of RLC SDUs that fail to be received in the first time period to all RLC SDUs received in the first time period;

The threshold of the number of successfully received RLC SDUs within the first time period;

The threshold value of the ratio of RLC SDUs successfully received in the first time period to all RLC SDUs received in the first time period;

The threshold of the number of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period;

The threshold value of the ratio of the RLC SDUs that reach the maximum number of RLC retransmissions in the first time period to all RLC SDUs received in the first time period.

The threshold value of the proportion of PDCP SDUs that fail to be received in the first time period to all PDCP SDUs received in the first time period;

The threshold of the number of successfully received PDCP SDUs within the first time period;

The threshold value of the proportion of PDCP SDUs successfully received in the first time period to all PDCP SDUs received in the first time period;

The threshold of the number of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

The threshold of the proportion of PDCP SDUs that reach the maximum PDCP discard duration in the first time period to all PDCP SDUs received in the first time period.

The terminal device receives third configuration information sent by the network device, where the third configuration information is used to configure at least one reporting condition for the terminal device to report the first information.

Optionally, the first reporting condition is a reporting condition configured and activated by the network device.

Optionally, in some embodiments, the first reporting condition is a reporting condition configured by the network device.

Optionally, in some embodiments, the communication unit 420 is specifically used for:

The first information is sent to the network device through RRC dedicated signaling.

Optionally, in some embodiments, the decision information is used to indicate at least one of the following:

The terminal device expects to receive broadcast or multicast data through point-to-point PTP mode;

The end device wishes to leave the current PTM data receiving group.

Optionally, in some embodiments, the above-mentioned communication unit may be a communication interface or a transceiver, or an input/output interface of a communication chip or a system-on-chip. The aforementioned processing unit may be one or more processors.

It should be understood that the terminal device 400 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the terminal device 400 are for the purpose of realizing FIG. 2 to FIG. 4 , respectively. The corresponding process of the terminal device in the shown method 200 is not repeated here for brevity.

FIG. 6 is a schematic block diagram of a network device according to an embodiment of the present application. The network device 500 of FIG. 6 includes:

The communication unit 510 is configured to receive the first information sent by the terminal device, where the first information includes the reception situation of the point-to-multipoint PTM transmission statistics of the terminal device in the first time period and/or the reception situation of the terminal device according to the reception situation. Decision information, the PTM transmission is sent by the network device to multiple terminal devices, and the terminal device is one of the multiple terminal devices.

Optionally, in some embodiments, the receiving conditions of the PTM transmissions counted by the terminal device in the first time period include at least one of the following:

Optionally, in some embodiments, the receiving situation of the PTM transmission statistics of the medium access control MAC layer of the terminal device in the first time period includes at least one of the following:

Information on the ratio of the MAC SDUs that reach the maximum number of HARQ retransmissions corresponding to each HARQ process of the terminal device in the first time period to all MAC SDUs received in the first time period;

Optionally, in some embodiments, the reception situation of the PTM transmission statistics of the radio link control RLC layer of the terminal device in the first time period includes at least one of the following:

Optionally, in some embodiments, the communication unit 510 is further configured to:

Send first configuration information and/or second configuration information to the terminal device, where the first configuration information is used to configure the content included in the first information reported by the terminal device, and the second configuration information is used to configure the The format in which the terminal device reports the first information.

The format configuration for the terminal equipment to report the reception status of the PTM transmission statistics of the RLC layer;

Optionally, in some embodiments, the format configuration in which the terminal device reports the receiving situation of the PTM transmission statistics of the PDCP layer is configured to configure at least one of the following:

A first message sent by the terminal device is received, where the first message is used to request the network device to feed back the reception status of the PTM transmission and/or the decision information.

Receive the first information sent by the terminal device in the case of receiving a first response message from the network device, where the first response message is used to indicate that the network device agrees to the terminal device to feed back the reception status of the PTM transmission.

Receive the first information sent by the terminal device under the condition that the first reporting condition is satisfied.

The first timer times out;

Optionally, in some embodiments, the duration of the first timer is configured by the network device through dedicated signaling or system information.

Optionally, in some embodiments, the terminal device is further configured with an upper limit of the number of reporting times and/or a reporting duration, wherein within the reporting duration, the terminal device periodically performs the reporting of the first information based on the first timer. report.

Send third configuration information to the terminal device, where the third configuration information is used to configure at least one reporting condition for the terminal device to report the first information.

Sending a second message to the terminal device, where the second message is used to activate one or more reporting conditions in the at least one reporting condition.

Optionally, in some embodiments, the first reporting condition is a reporting condition configured and activated by the network device.

The first information sent by the terminal device through RRC dedicated signaling is received.

The end device wishes to leave the current PTM data receiving group.

It should be understood that the network device 500 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of each unit in the network device 500 are for the purpose of realizing FIG. 2 to FIG. 4 , respectively. The corresponding flow of the network device in the illustrated method 200 is not repeated here for brevity.

FIG. 7 is a schematic structural diagram of a communication device 600 provided by an embodiment of the present application. The communication device 600 shown in FIG. 7 includes a processor 610, and the processor 610 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 7 , the communication device 600 may further include a memory 620 . The processor 610 may call and run a computer program from the memory 620 to implement the methods in the embodiments of the present application.

The memory 620 may be a separate device independent of the processor 610 , or may be integrated in the processor 610 .

Optionally, as shown in FIG. 7 , the communication device 600 may further include a transceiver 630, and the processor 610 may control the transceiver 630 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.

Among them, the transceiver 630 may include a transmitter and a receiver. The transceiver 630 may further include antennas, and the number of the antennas may be one or more.

Optionally, the communication device 600 may specifically be the network device in this embodiment of the present application, and the communication device 600 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .

Optionally, the communication device 600 may specifically be the mobile terminal/terminal device of the embodiments of the present application, and the communication device 600 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, for the sake of brevity. , and will not be repeated here.

FIG. 8 is a schematic structural diagram of a chip according to an embodiment of the present application. The chip 700 shown in FIG. 8 includes a processor 710, and the processor 710 can call and run a computer program from a memory, so as to implement the method in this embodiment of the present application.

Optionally, as shown in FIG. 8 , the chip 700 may further include a memory 720 . The processor 710 may call and run a computer program from the memory 720 to implement the methods in the embodiments of the present application.

The memory 720 may be a separate device independent of the processor 710 , or may be integrated in the processor 710 .

Optionally, the chip 700 may further include an input interface 730 . The processor 710 may control the input interface 730 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

Optionally, the chip 700 may further include an output interface 740 . The processor 710 can control the output interface 740 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.

Optionally, the chip can be applied to the network device in the embodiment of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiment of the present application, which is not repeated here for brevity.

Optionally, the chip can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. For brevity, here No longer.

It should be understood that the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.

FIG. 9 is a schematic block diagram of a communication system 900 provided by an embodiment of the present application. As shown in FIG. 9 , the communication system 900 includes a terminal device 910 and a network device 920 .

The terminal device 910 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 920 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .

It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiment may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), 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 link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a 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 (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.

Embodiments of the present application also provide a computer program product, including computer program instructions.

Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.

The embodiments of the present application also provide a computer program.

Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application. The corresponding process, for the sake of brevity, will not be repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

A method of wireless communication, comprising:

The terminal device obtains the reception situation of the point-to-multipoint PTM transmission from the network device within the first time period;

The terminal device sends first information to the network device, where the first information includes the reception situation of the PTM transmission in the first time period acquired by the terminal device and/or the terminal device according to the reception Situational decision-making information.
The method according to claim 1, wherein the first information further includes time information corresponding to the first time period.
The method according to claim 2, wherein the time information corresponding to the first time period comprises a first moment and a first duration, and the first time period is the first time before the first moment a long period of time; or

The time information corresponding to the first time period includes a start time and an end time of the first time period.
The method according to claim 3, wherein the first time is the sending time of the first information.
The method according to any one of claims 1 to 4, wherein the receiving condition of the PTM transmission in the first time period includes at least one of the following:

The reception situation of the PTM transmission statistics of the medium access control MAC layer of the terminal device in the first time period;

The reception situation of the PTM transmissions counted by the radio link control RLC layer of the terminal device in the first time period;

The reception situation of the PTM transmission according to the statistics of the PDCP layer of the packet data convergence protocol of the terminal device in the first time period.
The method according to claim 5, wherein the receiving condition of the PTM transmission according to the medium access control (MAC) layer statistics of the terminal device in the first time period includes at least one of the following:

The number of times of HARQ NACK that needs to be fed back within the first time period;

The number of times of HARQ ACK that needs to be fed back within the first time period;

Information on the number of MAC service data units SDUs that fail to receive within the first time period;

Information on the proportion of MAC SDUs that fail to receive within the first time period to all MAC SDUs received within the first time period;

Information on the number of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period;

Information on the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

The number information of successfully received MAC SDUs in the first time period;

Information on the proportion of successfully received MAC SDUs within the first time period to all MAC SDUs received within the first time period.
The method according to claim 5 or 6, wherein the receiving condition of the PTM transmission according to the MAC layer statistics of the terminal device includes at least one of the following:

The number of times the HARQ NACK needs to be fed back corresponding to each hybrid automatic retransmission HARQ process of the terminal device within the first time period;

The number of times the HARQ ACK needs to be fed back corresponding to each HARQ process of the terminal device in the first time period;

Information on the number of MAC SDUs that fail to receive corresponding to each HARQ process of the terminal device in the first time period;

Information on the proportion of MAC SDUs that fail to receive corresponding to each HARQ process of the terminal device in the first time period to all MAC SDUs received in the first time period;

Information on the number of MAC SDUs that reach the maximum number of HARQ retransmissions corresponding to each HARQ process of the terminal device within the first time period;

Information on the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions corresponding to each HARQ process of the terminal device in the first time period to all MAC SDUs received in the first time period;

Information on the number of successfully received MAC SDUs corresponding to each HARQ process of the terminal device in the first time period;

Information on the proportion of successfully received MAC SDUs corresponding to each HARQ process of the terminal device in the first time period to all MAC SDUs received in the first time period.
The method according to any one of claims 5-7, characterized in that, in the first time period, the reception status of the PTM transmissions according to the radio link control (RLC) layer of the terminal device in the first time period includes at least one of the following: item:

information on the number of RLC SDUs that fail to receive within the first time period;

Information on the proportion of RLC SDUs that fail to receive within the first time period to all RLC SDUs received within the first time period;

Number information of successfully received RLC SDUs in the first time period;

Information on the ratio of RLC SDUs successfully received in the first time period to all RLC SDUs received in the first time period;

Information on the number of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period;

Information on the ratio of RLC SDUs that reach the maximum number of RLC retransmissions in the first time period to all RLC SDUs received in the first time period;

The sequence number SN corresponding to the RLC SDU that reaches the maximum number of RLC retransmissions within the first time period.
The method according to any one of claims 5-8, characterized in that, the reception situation of the PTM transmission according to the RLC layer statistics of the terminal device includes at least one of the following:

Information on the number of RLC SDUs that fail to receive corresponding to each logical channel of the terminal device in the first time period;

Information on the proportion of RLC SDUs that fail to receive corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

Information on the number of successfully received RLC SDUs corresponding to each logical channel of the terminal device in the first time period;

Information on the proportion of successfully received RLC SDUs corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

Information on the number of RLC SDUs that reach the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device in the first time period;

Information on the ratio of RLC SDUs that reach the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

The SN corresponding to the RLC SDU that reaches the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device in the first time period.
The method according to any one of claims 5-9, characterized in that, in the first time period, the receiving status of PTM transmissions according to the statistics of the Packet Data Convergence Protocol (PDCP) layer of the terminal device in the first time period includes at least one of the following: item:

The number information of PDCP SDUs that fail to receive in the first time period;

Information on the proportion of PDCP SDUs that fail to receive within the first time period to all PDCP SDUs received within the first time period;

Number information of successfully received PDCP SDUs in the first time period;

Information on the ratio of PDCP SDUs successfully received in the first time period to all PDCP SDUs received in the first time period;

Information on the number of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

Information on the proportion of PDCP SDUs that reach the maximum PDCP discard duration within the first time period to all PDCP SDUs received within the first time period;

The SN corresponding to the PDCP SDU that reaches the maximum PDCP discard duration within the first time period.
The method according to any one of claims 5-10, wherein the receiving conditions of the PTM transmissions according to the statistics of the Packet Data Convergence Protocol (PDCP) layer of the terminal device in the first time period include at least one of the following: item:

Information on the number of PDCP SDUs that fail to receive corresponding to each data radio bearer DRB of the terminal device within the first time period;

Information on the proportion of PDCP SDUs that fail to receive corresponding to each DRB of the terminal device in the first time period to all PDCP SDUs received in the first time period;

Information on the number of successfully received PDCP SDUs corresponding to each DRB of the terminal device in the first time period;

Information on the proportion of successfully received PDCP SDUs corresponding to each DRB of the terminal device in the first time period to all PDCP SDUs received in the first time period;

Information on the number of PDCP SDUs that reach the maximum PDCP discard duration corresponding to each DRB of the terminal device in the first time period;

Information on the proportion of PDCP SDUs corresponding to each DRB of the terminal device that reach the maximum PDCP discard duration in the first time period to all PDCP SDUs received in the first time period;

The SN corresponding to the PDCP SDU that reaches the maximum PDCP discard duration corresponding to each DRB of the terminal device in the first time period.
The method according to any one of claims 1-11, wherein the method further comprises:

The terminal device receives the first configuration information and/or the second configuration information sent by the network device, wherein the first configuration information is used to configure the content included in the first information reported by the terminal device, The second configuration information is used to configure a format in which the terminal device reports the first information.
The method of claim 12, wherein the method further comprises:

The terminal device determines the content included in the first information according to the first configuration information; and/or

The format for reporting the first information is determined according to the second configuration information.
The method according to claim 12 or 13, wherein the first configuration information is used to configure the first information reported by the terminal device, comprising at least one of the following:

The reception situation of the PTM transmission statistics collected by the MAC layer of the terminal device in the first time period;

The reception situation of the PTM transmission statistics collected by the RLC layer of the terminal device in the first time period;

The receiving situation of the PTM transmission according to the PDCP layer statistics of the terminal device in the first time period.
The method according to any one of claims 12-14, wherein the second configuration information includes at least one of the following:

The format configuration of the receiving situation of the PTM transmission reported by the terminal equipment according to the MAC layer statistics;

Format configuration for the terminal equipment to report the reception situation of the PTM transmission statistics of the RLC layer;

The format configuration for the terminal equipment to report the receiving situation of the PTM transmission statistics of the PDCP layer.
The method according to claim 15, wherein the format configuration of the terminal equipment reporting the reception status of the PTM transmission of the MAC layer statistics is configured to configure at least one of the following:

Whether to report the number of times the HARQ NACK needs to be fed back within the first time period;

Whether to report the number of times the HARQ ACK needs to be fed back within the first time period;

Whether to report the number of MAC SDUs that failed to receive within the first time period;

Whether to report information on the proportion of MAC SDUs that fail to receive within the first period of time to all MAC SDUs received within the first period of time;

Whether to report the number of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period;

Whether to report the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

Whether to report the number of successfully received MAC SDUs in the first time period;

Whether to report information on the proportion of successfully received MAC SDUs within the first time period to all MAC SDUs received within the first time period;

Whether multiple retransmission failure events of the same data are combined records or independent records;

Whether to report the reception status corresponding to each HARQ process of the terminal device.
The method according to claim 15 or 16, wherein, the format configuration of the terminal equipment reporting the reception situation of the PTM transmission statistics of the RLC layer is configured to configure at least one of the following:

Whether to report the information on the number of RLC SDUs that failed to receive within the first time period;

Whether to report information on the ratio of RLC SDUs that fail to receive within the first time period to all RLC SDUs received within the first time period;

Whether to report the information on the number of successfully received RLC SDUs within the first time period;

Whether to report information on the ratio of successfully received RLC SDUs within the first time period to all RLC SDUs received within the first time period;

Whether to report the information on the number of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period;

Whether to report the ratio of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period to all RLC SDUs received within the first time period;

Whether to report the SN corresponding to the RLC SDU that reaches the maximum number of RLC retransmissions within the first time period;

Whether multiple retransmission failure events of the same data are combined records or independent records;

Whether to report the reception status corresponding to each logical channel of the terminal device.
The method according to any one of claims 15-17, wherein the format configuration of the terminal equipment reporting the reception situation of the PTM transmission statistics of the PDCP layer is configured to configure at least one of the following:

Whether to report the number of PDCP SDUs that failed to receive within the first time period;

Whether to report information on the ratio of PDCP SDUs that fail to receive within the first time period to all PDCP SDUs received within the first time period;

Whether to report the number of successfully received PDCP SDUs in the first time period;

Whether to report information on the proportion of PDCP SDUs successfully received in the first time period to all PDCP SDUs received in the first time period;

Whether to report the information on the number of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

Whether to report the ratio of PDCP SDUs that reach the maximum PDCP discard duration within the first time period to all PDCP SDUs received within the first time period;

Whether to report the SN corresponding to the PDCP SDU that reaches the maximum PDCP discard duration within the first time period;

Whether multiple retransmission failure events of the same data are combined records or independent records;

Whether to report the reception situation corresponding to each DRB of the terminal device.
The method according to any one of claims 1-18, wherein the method further comprises:

The terminal device sends a first message to the network device, where the first message is used to request the network device to feed back the reception situation of the PTM transmission and/or the decision information.
The method according to claim 19, wherein the terminal device sends the first information to the network device, comprising:

The terminal device sends the first information to the network device in the case of receiving the first response message from the network device, where the first response message is used to instruct the network device to agree to the terminal device Feedback the reception status of the PTM transmission and/or the decision information.
The method according to claim 20, wherein the first response message includes first configuration information and/or second configuration information, wherein the first configuration information is used to configure all the information reported by the terminal device. content included in the first information, and the second configuration information is used to configure the format in which the terminal device reports the first information.
The method according to any one of claims 1-18, wherein the terminal device sends the first information to the network device, comprising:

The terminal device sends the first information to the network device when the first reporting condition is satisfied.
The method according to claim 22, wherein the first reporting condition comprises at least one of the following:

The first timer times out;

The receiving conditions of the PTM transmissions counted by the terminal device meet the reporting threshold.
The method according to claim 23, wherein the duration of the first timer is configured by the network device through dedicated signaling or system information.
The method according to claim 23 or 24, wherein the terminal device is further configured with an upper limit of the number of reports and/or a report duration, wherein within the report duration, the terminal device is configured based on the first timer The first information is reported periodically.
The method according to any one of claims 23-25, wherein the receiving conditions of the PTM transmission statistics collected by the terminal device satisfy the reporting threshold including at least one of the following:

The reception situation of the PTM transmission statistics of the MAC layer of the terminal device meets the MAC layer reporting threshold;

The reception situation of the PTM transmission counted by the RLC layer of the terminal device satisfies the RLC layer reporting threshold;

The receiving conditions of the PTM transmissions counted by the PDCP layer of the terminal device satisfy the PDCP layer reporting threshold.
The method according to claim 26, wherein the MAC layer reporting threshold comprises at least one of the following:

The threshold for the number of times that HARQ NACKs need to be fed back within the first time period;

The threshold for the number of times the HARQ ACK needs to be fed back within the first time period;

The threshold of the number of MAC SDUs that fail to receive within the first time period;

a threshold value of the proportion of MAC SDUs that fail to receive within the first time period to all MAC SDUs received within the first time period;

The threshold of the number of MAC SDUs that reaches the maximum number of HARQ retransmissions within the first time period;

A threshold value of the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

The threshold of the number of successfully received MAC SDUs in the first time period;

A threshold value of the proportion of successfully received MAC SDUs within the first time period to all MAC SDUs received within the first time period.
The method according to claim 26 or 27, wherein the RLC layer reporting threshold comprises at least one of the following:

The threshold of the number of RLC SDUs that fail to receive within the first time period;

a threshold value of the proportion of RLC SDUs that fail to be received in the first time period to all RLC SDUs received in the first time period;

The threshold of the number of successfully received RLC SDUs in the first time period;

a threshold for the proportion of successfully received RLC SDUs within the first time period to all RLC SDUs received within the first time period;

The threshold of the number of RLC SDUs reaching the maximum number of RLC retransmissions within the first time period;

A threshold value of the ratio of RLC SDUs that reach the maximum number of RLC retransmissions in the first time period to all RLC SDUs received in the first time period.
The method according to any one of claims 26-28, wherein the RLC layer reporting threshold includes at least one of the following:

The threshold of the number of PDCP SDUs that fail to receive within the first time period;

a threshold value of the proportion of PDCP SDUs that fail to be received within the first time period to all PDCP SDUs received within the first time period;

the number threshold of successfully received PDCP SDUs in the first time period;

A threshold value of the proportion of PDCP SDUs that are successfully received in the first time period to all PDCP SDUs received in the first time period;

The number threshold of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

A threshold for the proportion of PDCP SDUs that reach the maximum PDCP discard duration in the first time period to all PDCP SDUs received in the first time period.
The method according to any one of claims 22-29, wherein the method further comprises:

The terminal device receives third configuration information sent by the network device, where the third configuration information is used to configure at least one reporting condition for the terminal device to report the first information.
The method of claim 30, wherein the method further comprises:

The terminal device receives a second message sent by the network device, where the second message is used to activate one or more reporting conditions in the at least one reporting condition.
The method according to claim 31, wherein the second message includes at least one of the following: downlink control information DCI, MAC signaling, and radio resource control RRC signaling.
The method according to claim 31 or 32, wherein the first reporting condition is a reporting condition configured and activated by the network device.
The method according to claim 30, wherein the first reporting condition is a reporting condition configured by the network device.
The method according to any one of claims 1-34, wherein the terminal device sends the first information to the network device, comprising:

The terminal device sends the first information to the network device through RRC dedicated signaling.
The method according to any one of claims 1-35, wherein the decision information is used to indicate at least one of the following:

feedback resources expected by the terminal device for feeding back the PTM transmission;

the terminal device needs dedicated feedback resources for feeding back the PTM transmission;

The terminal device expects to receive broadcast or multicast data through point-to-point PTP mode;

The terminal device wishes to leave the current PTM data receiving group.
A method of wireless communication, comprising:

The network device receives the first information sent by the terminal device, where the first information includes the reception situation of the point-to-multipoint PTM transmission acquired by the terminal device in the first time period and/or the terminal device's information according to the reception situation. decision information.
The method according to claim 37, wherein the first information further comprises time information corresponding to the first time period.
The method according to claim 38, wherein the time information corresponding to the first time period comprises a first moment and a first duration, and the first time period is the first time before the first moment a long period of time; or

The time information corresponding to the first time period includes a start time and an end time of the first time period.
The method according to claim 39, wherein the first time is the sending time of the first information.
The method according to any one of claims 37 to 40, wherein the receiving condition of the PTM transmission in the first time period includes at least one of the following:

The reception situation of the PTM transmission statistics of the medium access control MAC layer of the terminal device in the first time period;

The reception situation of the PTM transmissions counted by the radio link control RLC layer of the terminal device in the first time period;

The reception situation of the PTM transmission according to the statistics of the PDCP layer of the packet data convergence protocol of the terminal device in the first time period.
The method according to claim 41, wherein the receiving condition of the PTM transmission statistics collected by the medium access control (MAC) layer of the terminal device in the first time period includes at least one of the following:

The number of times of HARQ NACK that needs to be fed back within the first time period;

The number of times of HARQ ACK that needs to be fed back within the first time period;

Information on the number of MAC service data units SDUs that fail to receive within the first time period;

Information on the proportion of MAC SDUs that fail to receive within the first time period to all MAC SDUs received within the first time period;

Information on the number of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period;

Information on the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

The number information of successfully received MAC SDUs in the first time period;

Information on the proportion of successfully received MAC SDUs within the first time period to all MAC SDUs received within the first time period.
The method according to claim 41 or 42, wherein the receiving conditions of the PTM transmissions according to the MAC layer statistics of the terminal device include at least one of the following:

The number of times the HARQ NACK needs to be fed back corresponding to each hybrid automatic retransmission HARQ process of the terminal device within the first time period;

The number of times the HARQ ACK needs to be fed back corresponding to each HARQ process of the terminal device in the first time period;

Information on the number of MAC SDUs that fail to receive corresponding to each HARQ process of the terminal device in the first time period;

Information on the proportion of MAC SDUs that fail to receive corresponding to each HARQ process of the terminal device in the first time period to all MAC SDUs received in the first time period;

Information on the number of MAC SDUs that reach the maximum number of HARQ retransmissions corresponding to each HARQ process of the terminal device within the first time period;

Information on the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions corresponding to each HARQ process of the terminal device in the first time period to all MAC SDUs received in the first time period;

Information on the number of successfully received MAC SDUs corresponding to each HARQ process of the terminal device in the first time period;

Information on the proportion of successfully received MAC SDUs corresponding to each HARQ process of the terminal device in the first time period to all MAC SDUs received in the first time period.
The method according to any one of claims 41 to 43, wherein the reception situation of the PTM transmissions according to the radio link control RLC layer statistics of the terminal device in the first time period includes at least one of the following item:

information on the number of RLC SDUs that fail to receive within the first time period;

Information on the proportion of RLC SDUs that fail to receive within the first time period to all RLC SDUs received within the first time period;

Number information of successfully received RLC SDUs in the first time period;

Information on the ratio of RLC SDUs successfully received in the first time period to all RLC SDUs received in the first time period;

Information on the number of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period;

Information on the ratio of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period to all RLC SDUs received within the first time period;

The sequence number SN corresponding to the RLC SDU that reaches the maximum number of RLC retransmissions within the first time period.
The method according to any one of claims 41 to 44, wherein the receiving conditions of the PTM transmissions according to the RLC layer statistics of the terminal device include at least one of the following:

Information on the number of RLC SDUs that fail to receive corresponding to each logical channel of the terminal device in the first time period;

Information on the proportion of RLC SDUs that fail to receive corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

Information on the number of successfully received RLC SDUs corresponding to each logical channel of the terminal device in the first time period;

Information on the proportion of successfully received RLC SDUs corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

Information on the number of RLC SDUs that reach the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device in the first time period;

Information on the ratio of RLC SDUs that reach the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device in the first time period to all RLC SDUs received in the first time period;

The SN corresponding to the RLC SDU that reaches the maximum number of RLC retransmissions corresponding to each logical channel of the terminal device in the first time period.
The method according to any one of claims 41 to 45, characterized in that, the receiving conditions of PTM transmissions counted by the Packet Data Convergence Protocol (PDCP) layer of the terminal device in the first time period include at least one of the following: item:

The number information of PDCP SDUs that fail to receive in the first time period;

Information on the proportion of PDCP SDUs that fail to receive within the first time period to all PDCP SDUs received within the first time period;

Number information of successfully received PDCP SDUs in the first time period;

Information on the ratio of PDCP SDUs successfully received in the first time period to all PDCP SDUs received in the first time period;

Information on the number of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

Information on the proportion of PDCP SDUs that reach the maximum PDCP discard duration within the first time period to all PDCP SDUs received within the first time period;

The SN corresponding to the PDCP SDU that reaches the maximum PDCP discard duration within the first time period.
The method according to any one of claims 41 to 46, wherein the receiving conditions of the PTM transmissions according to the statistics of the Packet Data Convergence Protocol (PDCP) layer of the terminal device in the first time period include at least one of the following: item:

Information on the number of PDCP SDUs that fail to receive corresponding to each data radio bearer DRB of the terminal device within the first time period;

Information on the proportion of PDCP SDUs that fail to receive corresponding to each DRB of the terminal device in the first time period to all PDCP SDUs received in the first time period;

Information on the number of successfully received PDCP SDUs corresponding to each DRB of the terminal device in the first time period;

Information on the proportion of successfully received PDCP SDUs corresponding to each DRB of the terminal device in the first time period to all PDCP SDUs received in the first time period;

Information on the number of PDCP SDUs that reach the maximum PDCP discard duration corresponding to each DRB of the terminal device in the first time period;

Information on the proportion of PDCP SDUs corresponding to each DRB of the terminal device that reach the maximum PDCP discard duration in the first time period to all PDCP SDUs received in the first time period;

The SN corresponding to the PDCP SDU that reaches the maximum PDCP discard duration corresponding to each DRB of the terminal device in the first time period.
The method according to any one of claims 37-47, wherein the method further comprises:

The network device sends the first configuration information and/or the second configuration information to the terminal device, where the first configuration information is used to configure the content included in the first information reported by the terminal device, and the The second configuration information is used to configure the format in which the terminal device reports the first information.
The method according to claim 48, wherein the first configuration information is used to configure the first information reported by the terminal device including at least one of the following:

The reception situation of the PTM transmission statistics collected by the MAC layer of the terminal device in the first time period;

The reception situation of the PTM transmission statistics collected by the RLC layer of the terminal device in the first time period;

The receiving situation of the PTM transmission according to the PDCP layer statistics of the terminal device in the first time period.
The method according to claim 48 or 49, wherein the second configuration information includes at least one of the following:

The format configuration of the receiving situation of the PTM transmission reported by the terminal equipment according to the MAC layer statistics;

Format configuration for the terminal equipment to report the reception situation of the PTM transmission statistics of the RLC layer;

The format configuration for the terminal equipment to report the receiving situation of the PTM transmission statistics of the PDCP layer.
The method according to claim 50, wherein the format configuration of the terminal equipment reporting the reception status of the PTM transmission of the MAC layer statistics is configured to configure at least one of the following:

Whether to report the number of times the HARQ NACK needs to be fed back within the first time period;

Whether to report the number of times the HARQ ACK needs to be fed back within the first time period;

Whether to report the number of MAC SDUs that failed to receive within the first time period;

Whether to report information on the proportion of MAC SDUs that fail to receive within the first period of time to all MAC SDUs received within the first period of time;

Whether to report the number of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period;

Whether to report the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

Whether to report the number of successfully received MAC SDUs in the first time period;

Whether to report information on the proportion of successfully received MAC SDUs within the first time period to all MAC SDUs received within the first time period;

Whether multiple retransmission failure events of the same data are combined records or independent records;

Whether to report the reception status corresponding to each HARQ process of the terminal device.
The method according to claim 50 or 51, wherein the format configuration of the terminal equipment reporting the reception situation of the PTM transmission statistics of the RLC layer is configured to configure at least one of the following:

Whether to report the information on the number of RLC SDUs that failed to receive within the first time period;

Whether to report information on the ratio of RLC SDUs that fail to receive within the first time period to all RLC SDUs received within the first time period;

Whether to report the information on the number of successfully received RLC SDUs within the first time period;

Whether to report information on the ratio of successfully received RLC SDUs within the first time period to all RLC SDUs received within the first time period;

Whether to report the information on the number of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period;

Whether to report the ratio of RLC SDUs that reach the maximum number of RLC retransmissions within the first time period to all RLC SDUs received within the first time period;

Whether to report the SN corresponding to the RLC SDU that reaches the maximum number of RLC retransmissions within the first time period;

Whether multiple retransmission failure events of the same data are combined records or independent records;

Whether to report the reception status corresponding to each logical channel of the terminal device.
The method according to any one of claims 50-52, wherein the format configuration of the terminal equipment reporting the reception situation of the PTM transmission statistics of the PDCP layer is configured to configure at least one of the following:

Whether to report the number of PDCP SDUs that failed to receive within the first time period;

Whether to report information on the ratio of PDCP SDUs that fail to receive within the first time period to all PDCP SDUs received within the first time period;

Whether to report the number of successfully received PDCP SDUs in the first time period;

Whether to report information on the proportion of PDCP SDUs successfully received in the first time period to all PDCP SDUs received in the first time period;

Whether to report the information on the number of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

Whether to report the ratio of PDCP SDUs that reach the maximum PDCP discard duration within the first time period to all PDCP SDUs received within the first time period;

Whether to report the SN corresponding to the PDCP SDU that reaches the maximum PDCP discard duration within the first time period;

Whether multiple retransmission failure events of the same data are combined records or independent records;

Whether to report the reception situation corresponding to each DRB of the terminal device.
The method according to any one of claims 37-53, wherein the method further comprises:

The network device receives the first message sent by the terminal device, where the first message is used to request the network device to feed back the reception status of the PTM transmission and/or the decision information.
The method according to claim 54, wherein the network device receives the first information sent by the terminal device, comprising:

The network device receives the first information sent by the terminal device in the case of receiving a first response message from the network device, where the first response message is used to instruct the network device to agree to the terminal The device feeds back the reception status of the PTM transmission.
The method according to claim 55, wherein the first response message includes first configuration information and/or second configuration information, wherein the first configuration information is used to configure all the information reported by the terminal device. content included in the first information, and the second configuration information is used to configure the format in which the terminal device reports the first information.
The method according to any one of claims 37-53, wherein the network device receives the first information sent by the terminal device, comprising:

The network device receives the first information sent by the terminal device under the condition that the first reporting condition is satisfied.
The method according to claim 57, wherein the first reporting condition comprises at least one of the following:

The first timer times out;

The receiving conditions of the PTM transmissions counted by the terminal device meet the reporting threshold.
The method according to claim 58, wherein the duration of the first timer is configured by the network device through dedicated signaling or system information.
The method according to claim 58 or 59, wherein the terminal device is further configured with an upper limit of the number of reports and/or a report duration, wherein within the report duration, the terminal device is configured based on the first timing The device periodically reports the first information.
The method according to any one of claims 58-60, characterized in that the receiving situation of the PTM transmission statistics collected by the terminal device satisfies the reporting threshold including at least one of the following:

The reception situation of the PTM transmission statistics of the MAC layer of the terminal device meets the MAC layer reporting threshold;

The reception situation of the PTM transmission statistics of the RLC layer of the terminal device meets the RLC layer reporting threshold;

The receiving conditions of the PTM transmissions counted by the PDCP layer of the terminal device satisfy the PDCP layer reporting threshold.
The method according to claim 61, wherein the MAC layer reporting threshold comprises at least one of the following:

The threshold for the number of times that HARQ NACKs need to be fed back within the first time period;

The threshold for the number of times the HARQ ACK needs to be fed back within the first time period;

The threshold of the number of MAC SDUs that fail to receive within the first time period;

a threshold value of the proportion of MAC SDUs that fail to receive within the first time period to all MAC SDUs received within the first time period;

The threshold of the number of MAC SDUs that reaches the maximum number of HARQ retransmissions within the first time period;

A threshold value of the proportion of MAC SDUs that reach the maximum number of HARQ retransmissions within the first time period to all MAC SDUs received within the first time period;

The threshold of the number of successfully received MAC SDUs in the first time period;

A threshold value of the proportion of successfully received MAC SDUs within the first time period to all MAC SDUs received within the first time period.
The method according to claim 61 or 62, wherein the RLC layer reporting threshold comprises at least one of the following:

The threshold of the number of RLC SDUs that fail to receive within the first time period;

a threshold value of the proportion of RLC SDUs that fail to be received within the first time period to all RLC SDUs received within the first time period;

The threshold of the number of successfully received RLC SDUs in the first time period;

a threshold for the proportion of successfully received RLC SDUs within the first time period to all RLC SDUs received within the first time period;

The threshold of the number of RLC SDUs reaching the maximum number of RLC retransmissions within the first time period;

A threshold value of the ratio of RLC SDUs that reach the maximum number of RLC retransmissions in the first time period to all RLC SDUs received in the first time period.
The method according to any one of claims 61-63, wherein the RLC layer reporting threshold includes at least one of the following:

The threshold of the number of PDCP SDUs that fail to receive within the first time period;

a threshold value of the proportion of PDCP SDUs that fail to be received within the first time period to all PDCP SDUs received within the first time period;

the number threshold of successfully received PDCP SDUs in the first time period;

A threshold value of the proportion of PDCP SDUs that are successfully received in the first time period to all PDCP SDUs received in the first time period;

The number threshold of PDCP SDUs that reach the maximum PDCP discard duration within the first time period;

A threshold for the proportion of PDCP SDUs that reach the maximum PDCP discard duration in the first time period to all PDCP SDUs received in the first time period.
The method according to any one of claims 57-64, wherein the method further comprises:

The network device sends third configuration information to the terminal device, where the third configuration information is used to configure at least one reporting condition for the terminal device to report the first information.
The method of claim 65, wherein the method further comprises:

The network device sends a second message to the terminal device, where the second message is used to activate one or more reporting conditions in the at least one reporting condition.
The method of claim 66, wherein the second message comprises at least one of the following:

Downlink control information DCI, MAC signaling, radio resource control RRC signaling.
The method according to claim 66 or 67, wherein the first reporting condition is a reporting condition configured and activated by the network device.
The method according to claim 65, wherein the first reporting condition is a reporting condition configured by the network device.
The method according to any one of claims 37-69, wherein the network device receives the first information sent by the terminal device, comprising:

The network device receives the first information sent by the terminal device through RRC dedicated signaling.
The method according to any one of claims 37-70, wherein the decision information is used to indicate at least one of the following:

feedback resources expected by the terminal device for feeding back the PTM transmission;

the terminal device needs dedicated feedback resources for feeding back the PTM transmission;

The terminal device expects to receive broadcast or multicast data through point-to-point PTP mode;

The terminal device wishes to leave the current PTM data receiving group.
A terminal device, characterized in that it includes:

a processing unit, configured to acquire the reception situation of the point-to-multipoint PTM transmission from the network device within the first time period;

A communication unit, configured to send first information to the network device, where the first information includes the reception situation of the PTM transmission within the first time period acquired by the terminal device and/or the terminal device according to the Receive situation-determined decision information.
A network device, characterized in that it includes:

A communication unit, configured to receive first information sent by the terminal device, where the first information includes the reception situation of point-to-multipoint PTM transmission in the first time period acquired by the terminal device and/or the The decision information determined by the receiving situation.
A terminal device, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 36. one of the methods described.
A chip, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 36 .
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 36.
A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 1 to 36.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 13.
A network device, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 37 to 71. one of the methods described.
A chip, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 37 to 71 .
A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 37 to 71.
A computer program product comprising computer program instructions that cause a computer to perform the method of any one of claims 37 to 71.
A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 37 to 71 .