CN117278177A

CN117278177A - Communication method and related device

Info

Publication number: CN117278177A
Application number: CN202210663506.5A
Authority: CN
Inventors: 曹春燕
Original assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Current assignee: Spreadtrum Semiconductor Nanjing Co Ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2023-12-22
Also published as: WO2023241561A1

Abstract

The application discloses a communication method and a related device, and relates to the field of communication. In the method, transmission state information of the SL may be acquired, and a packet copy function of the SL may be activated or deactivated according to the transmission state information of the SL. Therefore, the method and the device can flexibly activate the packet copying function according to the transmission state information of the SL, so that the reliability of data transmission is improved, or flexibly deactivate the packet copying function according to the transmission state information of the SL, so that the data transmission efficiency is improved, and the waste of transmission resources is reduced.

Description

Communication method and related device

Technical Field

The present disclosure relates to the field of communications, and in particular, to a communication method and a related device.

Background

In a communication system, some services have high reliability requirements, for example, the reliability of information interaction in automatic driving is 99.9999%. In order to meet the reliability requirements of communications, packet duplication functionality is introduced in communication systems. For example, the transmitting terminal device may copy the transmitted original packet to obtain a copied packet, and then transmit the original packet and the copied packet on two different channels. In this way, the receiving terminal device can receive the data packets on the two channels (i.e. the data packets comprise the original data packets and the duplicated data packets), and perform repeatability detection on the data packets on the two channels, and discard the duplicated data packets, so as to improve the reliability of data transmission.

However, how to activate or deactivate the packet duplication function after the terminal device is configured with the packet duplication function is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a communication method and a related device, which can flexibly activate or deactivate a packet copy function.

In a first aspect, embodiments of the present application provide a communication method, which may include:

acquiring transmission state information of a SL, the SL being a communication link between a transmitting terminal device and a receiving terminal device, the transmission state information of the SL being used to indicate a transmission condition of communication data on the SL;

the packet duplication function of the SL is activated or deactivated according to the transmission state information of the SL.

Therefore, the embodiment of the application can flexibly activate the packet replication function according to the transmission state information of the SL, so that the reliability of data transmission is improved, or flexibly deactivate the packet replication function according to the transmission state information of the SL, so that the data transmission efficiency is improved, and the waste of transmission resources is reduced.

In an alternative embodiment, the transmission status information of the SL includes one or more of signal quality information of the SL, feedback information of the receiving terminal device, packet loss rate, and packet transmission delay.

In another alternative embodiment, the method may be applied to a network device, and the acquiring transmission status information of the SL includes:

and receiving the transmission state information of the SL transmitted by the transmitting terminal equipment.

In yet another alternative embodiment, activating or deactivating a packet duplication function of the SL according to transmission status information of the SL includes:

transmitting indication information to a transmitting terminal device; the indication information is used to indicate that the packet duplication function of the SL is activated or deactivated.

In yet another alternative embodiment, the signal quality information of the SL includes RSRQ and/or RSRP;

the feedback information includes an ACK and/or a NACK.

activating a packet duplication function of the SL in case the transmission status information of the SL satisfies one or more of the first to fourth conditions;

deactivating a packet duplication function of the SL in case the transmission status information of the SL satisfies one or more of the fifth to eighth conditions;

the first condition is that the RSRQ in the transmission state information of SL is smaller than a first threshold, or the RSRP in the transmission state information of SL is smaller than a second threshold, or the RSRQ in the transmission state information of SL is smaller than the first threshold and the RSRP is smaller than the second threshold; the second condition is that the number of feedback information of NACKs included in the transmission state information of the SL is greater than a third threshold, or the number of feedback information of ACKs included in the transmission state information of the SL is less than a fourth threshold, or the number of feedback information of NACKs included in the transmission state information of the SL is greater than the third threshold and the number of feedback information of ACKs is less than the fourth threshold; the third condition is that the packet loss rate in the transmission state information of the SL is larger than a fifth threshold value; the fourth condition is that the packet transmission delay in the transmission state information of the SL is greater than a sixth threshold;

The fifth condition is that RSRQ in the transmission status information of SL is greater than or equal to a first threshold, or RSRP in the transmission status information of SL is greater than or equal to a second threshold; the sixth condition is that the number of feedback information of NACKs included in the transmission state information of SL is equal to or less than a third threshold value, or the number of feedback information of ACKs included in the transmission state information of SL is equal to or greater than a fourth threshold value; the seventh condition is that the packet loss rate in the transmission state information of the SL is smaller than or equal to a fifth threshold value; the eighth condition is that the packet transmission delay in the transmission status information of SL is equal to or less than a sixth threshold.

In a second aspect, embodiments of the present application further provide another communication method, where the communication method includes:

receiving indication information; the indication information is used for indicating to activate or deactivate the packet copy function of the SL; the SL is a communication link between a transmitting terminal device and a receiving terminal device; the indication information is determined according to transmission state information of the SL; the transmission state information of the SL is used for indicating the transmission condition of communication data on the SL;

and activating or deactivating the packet copy function of the SL according to the indication information.

Therefore, the embodiment of the application can receive the indication information determined by the transmission state information of the SL and flexibly activate the packet copy function according to the indication information, thereby improving the reliability of data transmission. Or receiving indication information determined by the transmission state information of the SL, and flexibly deactivating the packet duplication function according to the indication information, thereby improving data transmission efficiency and reducing waste of transmission resources.

In an optional implementation manner, the method may be applied to a transmitting terminal device, and the receiving instruction information includes:

and receiving the indication information sent by the receiving terminal equipment or the indication information sent by the receiving network equipment.

In another optional embodiment, before receiving the indication information sent by the network device, the method further includes:

and transmitting the transmission state information of the SL to the network device.

In yet another alternative embodiment, the method is applicable to a network device, and the receiving the indication information includes:

and receiving the indication information sent by the sending terminal equipment.

In still another alternative embodiment, the transmission status information of the SL includes one or more of signal quality information of the SL, feedback information of the receiving terminal device, a packet loss rate, and a packet transmission delay.

the feedback information includes ACK and/or NACK.

In still another alternative embodiment, the indication information is used to indicate that the packet duplication function of the SL is activated in case the transmission status information of the SL satisfies one or more of the first to fourth conditions;

in the case where the transmission state information of the SL satisfies one or more of the fifth to eighth conditions, the instruction information is for instructing to deactivate the packet duplication function of the SL;

In a third aspect, embodiments of the present application further provide a communication method, where the communication method includes:

transmitting indication information; the indication information is used for indicating to activate or deactivate the packet copy function of the SL; the SL is a communication link between a transmitting terminal device and a receiving terminal device; the indication information is determined according to transmission state information of the SL; the transmission status information of the SL is used to indicate the transmission of communication data on the SL.

Therefore, the embodiment of the application can send the indication information for indicating to activate the packet replication function, thereby being beneficial to flexibly activating the packet replication function based on the indication information, effectively improving the reliability of data transmission, or sending the indication information for indicating to deactivate the packet replication function, thereby being beneficial to flexibly deactivating the packet replication function based on the indication information, effectively improving the data transmission efficiency and reducing the waste of transmission resources.

In an alternative embodiment, the method may be applied to a receiving terminal device or a network device, and the sending indication information includes:

and sending the indication information to the sending terminal equipment.

In another optional embodiment, the method may be applied to a transmitting terminal device, and the transmitting indication information includes:

And sending the indication information to the network equipment.

the feedback information includes an ACK and/or a NACK.

In a fourth aspect, embodiments of the present application provide a communication apparatus, including:

an acquisition unit configured to acquire transmission state information of SL, the SL being a communication link between a transmitting terminal device and a receiving terminal device, the transmission state information of SL being used to indicate a transmission condition of communication data on the SL;

and the processing unit is used for activating or deactivating the packet copying function of the SL according to the transmission state information of the SL.

Optionally, optional embodiments and advantageous effects performed by the communication device may be referred to the communication method of the first aspect.

In a fifth aspect, embodiments of the present application provide another communication apparatus, the apparatus including:

A receiving unit for receiving the indication information; the indication information is used for indicating to activate or deactivate the packet copy function of the SL; the SL is a communication link between a transmitting terminal device and a receiving terminal device; the indication information is determined according to transmission state information of the SL; the transmission state information of the SL is used for indicating the transmission condition of communication data on the SL;

and the processing unit is used for activating or deactivating the packet copying function of the SL according to the indication information.

Optionally, optional embodiments and advantageous effects performed by the communication device may be referred to the communication method of the second aspect.

In a sixth aspect, embodiments of the present application further provide a communication apparatus, including:

a transmitting unit configured to transmit the indication information; the indication information is used for indicating to activate or deactivate the packet copy function of the SL; the SL is a communication link between a transmitting terminal device and a receiving terminal device; the indication information is determined according to transmission state information of the SL; the transmission status information of the SL is used to indicate the transmission of communication data on the SL.

Optionally, optional embodiments and advantageous effects performed by the communication device may be referred to the communication method described in the third aspect.

In a seventh aspect, embodiments of the present application provide a communication apparatus, including: a processor, a memory and a computer program stored on the memory, the computer program comprising program instructions, wherein the processor executes the program instructions to implement the steps in the method as devised in the first, second or third aspect above.

In an eighth aspect, embodiments of the present application provide a chip, where the chip includes a processor, and the processor performs the steps in the method designed in the first aspect, the second aspect, or the third aspect. Optionally, the chip may further comprise a memory and a computer program or instructions stored on the memory, the processor executing the computer program or instructions to implement the method of the first, second or third aspect.

In a ninth aspect, an embodiment of the present application provides a chip module, including a transceiver component and a chip, where the chip includes a processor, and the processor performs the steps in the method designed in the first aspect, the second aspect, or the third aspect. Optionally, the chip may further comprise a memory and a computer program or instructions stored on the memory, the processor executing the computer program or instructions to implement the method of the first, second or third aspect.

In a tenth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program comprising program instructions which when executed implement the steps in the method as devised in the first, second or third aspects above.

In an eleventh aspect, embodiments of the present application provide a computer program product comprising a computer program or program instructions which, when executed, implement the method of the first, second or third aspects described above.

Drawings

FIGS. 1 a-1 d are schematic diagrams of the architecture of a communication system provided in an embodiment of the present application;

fig. 2 is a schematic flow chart of a communication method according to an embodiment of the present application;

FIG. 3 is a flow chart of another communication method according to an embodiment of the present application;

FIG. 4 is a flow chart of yet another communication method according to an embodiment of the present application;

FIG. 5 is a flow chart of yet another communication method according to an embodiment of the present application;

FIG. 6 is a flow chart of yet another communication method provided in an embodiment of the present application;

fig. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;

Fig. 8 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of still another communication device according to an embodiment of the present application.

Detailed Description

It should be understood that references to "first," "second," etc. in embodiments of the present application are for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. Such as a process, method, software, article, or apparatus that comprises a list of steps or elements is not limited to those listed but may alternatively include other steps or elements not listed or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

The plural in this application refer to two or more. In the present application and/or describing the association relationship of the association object, the representation may have three relationships, for example, a and/or B may represent: a alone, a and B together, and B alone, wherein A, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "one or more" or the like, refers to any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, a and b, a and c, b and c, or a, b and c, wherein each of a, b, c may itself be an element, or may be a collection comprising one or more elements.

It should be noted that, the equality in the embodiment of the present application may be used with a greater than or less than the technical scheme adopted when the equality is greater than or equal to the technical scheme adopted when the equality is less than the technical scheme, and it should be noted that the equality is not used when the equality is greater than the technical scheme adopted when the equality is greater than or equal to the technical scheme adopted when the equality is greater than the technical scheme; when the value is equal to or smaller than that used together, the value is not larger than that used together.

In the present embodiments, the terms "system" and "network" are often used interchangeably, but the meaning will be understood by those skilled in the art.

The present application is applicable to, but not limited to, communication systems as shown in fig. 1a to 1 d. In fig. 1a, the dashed curve represents the network coverage boundary of the network device, the dashed curve represents the area within the network coverage of the network device, correspondingly, the terminal device within the dashed curve is the terminal device within the network coverage of the network device, and the terminal device 112 and the terminal device 113 are both terminal devices within the network coverage of the network device 111. As another example, as shown in fig. 1b, terminal device 112 may be within the network coverage of network device 111 and terminal device 113 may be within the network coverage of network device 114. As another example, as shown in fig. 1c, terminal device 112 may be within the network coverage of network device 111 and terminal device 113 may be outside the network coverage of network device 111. As another example, as shown in fig. 1d, both terminal device 112 and terminal device 113 may be outside the network coverage of network device 111.

In the communication system shown in fig. 1a to 1d, the network device may communicate with the terminal device (terminal device within the network coverage) via a cellular network, and the terminal device may communicate with each other via a Side Link (SL) network.

The cellular network may include, but is not limited to, one or more of global system for mobile communications (Global System for Mobile Communications, GSM), general packet radio service (General Packet Radio Service, GPRS), code division multiple access (Code Division Multiple Access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), time division code division multiple access (Time-Division Code Division Multiple Access, TD-SCDMA), long term evolution (Long Term Evolution, LTE), fifth generation mobile communication technology (5th Generation Mobile Networks,5G), next generation mobile communication technology, and future-evolution-sustaining communication networks.

The SL network refers to a network in which direct communication is realized between terminal devices through a PC5 interface. The PC5 interface may refer to a direct communication interface, that is, an interface supporting communication between terminal devices, or a short-distance direct communication interface supporting communication among vehicle-mounted devices, user devices, and road infrastructure devices. Alternatively, the SL network may be adapted for public safety transaction communication systems, internet of vehicles (vehicle to everything, V2X) communication systems, and the like. Among other things, the public safety transaction communication system includes, but is not limited to, an emergency communication system at a fire disaster site, an emergency communication system at a seismic disaster site, and the like. Among them, the internet of vehicles communication system includes, but is not limited to, one or more of a basic security type communication system, an advanced driving communication system, an automatic driving communication system, and a vehicle formation communication system.

Some businesses have high reliability requirements, for example, the reliability of information interaction in automatic driving is 99.9999%, and in order to meet the reliability requirements of a communication system, a packet duplication function can be introduced. For example, the transmitting terminal device may be the terminal device 112 shown in fig. 1a to 1d, and the receiving terminal device may be the terminal device 113 shown in fig. 1a to 1d, i.e. the packet duplication function may be introduced when SL communication data transmission is performed between the terminal device 112 and the terminal device 113. However, how to activate or deactivate the packet replication function is a challenge. Based on the above, the embodiment of the application provides a communication method, which can flexibly activate or deactivate the packet copy function.

Some concepts to which the present application relates are explained below.

In the present application, the network device may be an access network device for performing a radio access function, which may be a base station (base transceiver station, BTS) in a GSM communication system or a CDMA communication system, a base station (nodeB, NB) in a WCDMA communication system, an evolved base station (evolutional node B, eNB or eNodeB) in an LTE communication system, a base station (gNB) in a New Radio (NR) communication system, or a device in a future communication system. The network device may also be an Access Point (AP) in a wireless local area network (Wireless Local Area Networks, WLAN), a relay station, a network device in a future evolved public land mobile network (public land mobile network, PLMN) network, or a network device in a Non-terrestrial network (Non-terrestrial Network, NTN) communication system, etc.

In the present application, a terminal device is a device having a transceiver function, and may also be referred to as a User Equipment (UE), an access terminal device, a subscriber unit, a subscriber station, a mobile station, a remote terminal device, a mobile device, a user terminal device, an intelligent terminal device, a wireless communication device, a user agent, or a user apparatus. By way of example, the terminal device may be a cellular telephone, a cordless telephone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a personal digital assistant (personal digital assistant, PDA), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a relay device, an in-vehicle device, a wearable device, a terminal device in a next generation communication system such as an NR network or a terminal device in a future evolved PLMN, etc., without limitation. The terminal equipment can be deployed on land, including indoor or outdoor, handheld, wearable or vehicle-mounted; can be deployed on the water surface (such as ships, etc.); but also may be deployed in the air (e.g., aircraft, balloons, satellites, etc.). By way of example, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiving functionality, a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control (industrial control), a vehicle-mounted device in unmanned driving (self driving), a wireless terminal device in remote medical (remote medical), a wireless terminal device in smart grid (smart grid), a wireless terminal device in transportation security (transportation safety), a wireless terminal device in smart city (smart city), or a wireless terminal device in smart home (smart home), etc. The terminal device includes one or more of a transmitting terminal device and a receiving terminal device.

In the present application, SL may refer to a side link, that is, SL may refer to a communication link that realizes direct communication between terminal devices through a PC5 interface, or a communication link that realizes direct communication between transmitting terminal devices and receiving terminal devices through a PC5 interface. For example, the transmitting terminal device may be the terminal device 112 shown in fig. 1a to 1d, the receiving terminal device may be the terminal device 113 shown in fig. 1a to 1d, i.e. the communication link between the terminal device 112 and the terminal device 113 may be SL.

In the present application, the transmission status information of the SL is used to indicate the transmission situation of the communication data on the SL. In an alternative embodiment, the transmission status information of the SL may include, but is not limited to, one or more of signal quality information of the SL, feedback information of the receiving terminal device, packet loss rate, and packet transmission delay.

Wherein the signal quality information of the SL is used to indicate the signal quality of the communication link of the SL (or simply the signal quality on the SL). The signal quality information of the SL may include, but is not limited to, one or more of reference signal received quality (Reference Signal Receiving Quality, RSRQ) and reference signal received power (Reference Signal Receiving Power, RSRP), among others.

The feedback information of the receiving terminal equipment is used for indicating the receiving condition of the data packet of the receiving terminal equipment. Wherein the feedback information includes Acknowledgement (ACK) and/or negative acknowledgement (Negative Acknowledge, NACK). Wherein, ACK indicates that the receiving terminal equipment receives the data packet successfully, and NACK indicates that the receiving terminal equipment fails to receive the data packet. That is, after the transmitting terminal device transmits the data packet to the receiving terminal device, if the receiving terminal device receives the data packet successfully, the feedback information of the receiving terminal device is ACK. If the receiving terminal equipment fails to receive the data packet, the feedback information of the receiving terminal equipment is NACK. Optionally, the feedback information is used to indicate reception condition information of the historical data packet. Alternatively, the feedback information of the receiving terminal device may include feedback information of a medium access control (Media Access Control, MAC) layer of the receiving terminal device, that is, after the transmitting terminal device sends a data packet to the receiving terminal device, the receiving terminal device may feedback the feedback information to the transmitting terminal device through a hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) feedback mechanism of the MAC layer. Optionally, the feedback information of the receiving terminal device may further include feedback information of a radio link control (Radio Link Control, RLC) layer, that is, after the transmitting terminal device sends a data packet to the receiving terminal device, the receiving terminal device may feedback the feedback information to the transmitting terminal device through a feedback mechanism of the RLC layer.

The packet loss rate refers to a ratio between the number of data packets received by the receiving terminal device and the total number of data packets transmitted in a period of time over SL.

The packet transmission delay refers to the duration of transmission of the data packet from the sending terminal device to the receiving terminal device on the SL.

Optionally, the feedback information, the packet loss rate, the packet transmission delay, and the like of the receiving terminal device may reflect a transmission state of the data packet on the SL. The signal quality information of the SL is used to indicate the signal quality on the SL, and the quality of the signal of the SL can affect the state of data transmission, for example, the signal quality is good, the data transmission state of the SL is good, and vice versa, the signal quality is poor. Therefore, the transmission status information of the SL is used to indicate the transmission status of the communication data on the SL, and can be expressed as: the transmission status information of the SL may be used to indicate the signal quality of the SL and/or the transmission status of the data packets on the SL.

In the present application, in the SL network, there are two modes of resource scheduling: a distributed resource scheduling mode (a resource scheduling mode which may be simply referred to as "mode 2") and a centralized resource scheduling mode (a resource scheduling mode which may be simply referred to as "mode 1"). It can also be said that resources are allocated with two modes: a distributed resource allocation pattern and a centralized resource allocation pattern. The distributed resource scheduling mode means that the network device configures a resource pool for the terminal device, and the terminal device can select transmission resources in the configured resource pool. The centralized resource scheduling mode refers to real-time dynamic scheduling of transmission resources for the terminal equipment by the network equipment.

Alternatively, the distributed resource scheduling mode may be applied to a terminal device that is within network coverage (such as terminal device 112 shown in fig. 1 c) or a terminal device that is outside network coverage (such as terminal device 113 shown in fig. 1 c).

Alternatively, the centralized resource scheduling mode may be adapted to terminal devices (such as terminal device 112 shown in fig. 1 c) that are within the coverage of the network.

Embodiments of the present application are described below with reference to the accompanying drawings.

Referring to fig. 2, fig. 2 shows a schematic flow chart of a communication method that can be applied to the communication system shown in fig. 1 a-1 d or other systems similar to the communication system shown in fig. 1 a-1 d. The communication method may activate or deactivate a packet copy function of the SL based on transmission status information of the SL. Alternatively, the communication method may be applied to a transmitting terminal device or a network device, as shown in fig. 2, and may include, but is not limited to, S201-S202:

s201: transmission state information of SL is acquired.

S202: the packet duplication function of the SL is activated or deactivated according to the transmission state information of the SL.

In an alternative embodiment, S202 may include: activating a packet duplication function of the SL in case the transmission status information of the SL satisfies one or more of the first to fourth conditions; in the case where the transmission state information of the SL satisfies one or more of the fifth to eighth conditions, the packet copy function of the SL is deactivated.

Alternatively, the first condition may be that RSRQ in the transmission status information of SL is smaller than a first threshold, or RSRP in the transmission status information of SL is smaller than a second threshold, or RSRQ in the transmission status information of SL is smaller than the first threshold and RSRP is smaller than the second threshold. Alternatively, the second condition may be that the number of feedback information of NACKs included in the transmission state information of the SL is greater than a third threshold, or that the number of feedback information of ACKs included in the transmission state information of the SL is less than a fourth threshold, or that the number of feedback information of NACKs included in the transmission state information of the SL is greater than the third threshold and the number of feedback information of ACKs is less than the fourth threshold. Optionally, the third condition may be that a packet loss rate in the transmission status information of the SL is greater than a fifth threshold. Alternatively, the fourth condition may be that the packet transmission delay in the transmission status information of the SL is greater than a sixth threshold.

That is, the packet transfer state of the SL is poor, and one or more parameters included in the transmission state information of the SL as described above indicate that the packet transfer state of the SL is poor, or the signal quality of the SL is poor, and one or more parameters included in the signal quality information of the SL as described above indicate that the signal quality of the communication link of the SL is poor, so that the packet duplication function of the SL may be activated.

Alternatively, the fifth condition may be that RSRQ in the transmission status information of SL is greater than or equal to the first threshold, or RSRP in the transmission status information of SL is greater than or equal to the second threshold. Alternatively, the sixth condition may be that the number of feedback information of NACKs included in the transmission state information of the SL is equal to or less than a third threshold value, or the number of feedback information of ACKs included in the transmission state information of the SL is equal to or greater than a fourth threshold value. Optionally, the seventh condition may be that a packet loss rate in the transmission status information of SL is less than or equal to a fifth threshold. Optionally, the eighth condition may be that a packet transmission delay in the transmission status information of SL is less than or equal to a sixth threshold.

That is, the packet transfer state of the SL is better, and the packet copy function of the SL may be deactivated when one or more parameters included in the transmission state information of the SL as described above indicate that the packet transfer state of the SL is better, or when the signal quality of the SL is better, and one or more parameters included in the signal quality information of the SL as described above indicate that the signal quality of the communication link of the SL is better.

Optionally, one or more of the first threshold, the second threshold, the third threshold, the fourth threshold, the fifth threshold and the sixth threshold may be predefined, configured by a network device, or defined by a negotiation or a protocol between the network device and the terminal device, which is not limited in this application.

In an alternative embodiment, the SL packet replication function is activated, so that the SL packet replication function is deactivated when step S202 is performed. For example, when the packet duplication function is configured, the packet duplication function may be activated by default, that is, when the packet duplication function is configured, the packet duplication function of the SL is in an activated state, and further, step S202 may be performed to deactivate the packet duplication function of the SL.

In another alternative embodiment, the SL packet replication function is deactivated, such that the SL packet replication function is activated when step S202 is performed. For example, when the packet copy function is configured, the packet copy function of the SL is inactivated by default, and thus, the packet copy function of the SL is activated in step S202 can be performed.

The configuration of the packet duplication function may be that the transmitting terminal device has configuration information for configuring conditions and/or parameters required to be met when the transmitting terminal device executes the packet duplication function. Alternatively, the configuration information may be configured by the network device for the terminal device, or may be preconfigured.

In summary, the communication method shown in fig. 2 can flexibly activate or deactivate the packet duplication function according to the transmission status information of the SL. Since the transmission status information of the SL may indicate a communication data transmission status on the SL, that is, may indicate a data packet transmission status of the SL or signal quality of the SL, determining whether to activate the packet copy function according to the data packet transmission status of the SL or the signal quality of the SL may enable transmission of the data packet to be adapted to the data packet transmission status of the SL or the signal quality of the SL, thereby improving data transmission reliability or improving data transmission efficiency. For example, when the transmission state of the data packet of the SL is poor or the signal quality of the SL is poor, the packet duplication function may be activated at this time, so as to improve the reliability of data transmission, and when the transmission state of the data packet of the SL is good or the signal quality of the SL is good, the packet duplication function may be deactivated at this time, so as to improve the data transmission efficiency and reduce the waste of transmission resources.

In the present application, the communication method shown in fig. 2 may be applied to a transmitting terminal device. For example, the transmitting terminal device may perform S201-S202 shown in fig. 2, and the transmitting terminal device flexibly activates or deactivates the packet duplication function of the SL according to the transmission status information of the SL, i.e., the packet duplication function of the SL is decided to be activated or deactivated by the transmitting terminal device. The sending terminal device may be a terminal device in a distributed resource scheduling mode in SL. In the distributed resource scheduling mode, the transmitting terminal device can select transmission resources in the configured resource pool by itself, and accordingly, the transmitting terminal device makes a decision to activate or deactivate the packet copy function of the SL by itself.

In this application, the communication method shown in fig. 2 may be applied to a network device, that is, the network device may activate or deactivate a packet duplication function of the SL according to transmission status information of the SL, that is, the network device decides to activate or deactivate the packet duplication function of the SL. The transmitting terminal device may be a terminal device in a centralized resource scheduling mode in SL. In the centralized resource scheduling mode, the network device is required to dynamically schedule transmission resources to the transmitting terminal device in real time, so that the network device can decide to activate or deactivate the packet copy function of the SL.

Referring to fig. 3, fig. 3 is a flow chart illustrating a communication method. In the communication method shown in fig. 3, the network device decides to activate or deactivate the packet duplication function of the SL is described as an example. As shown in fig. 3, the communication method may include, but is not limited to, S301-S303:

s301: the transmitting terminal device transmits transmission state information of the SL to the network device. Correspondingly, the network device receives the transmission status information of the SL sent by the sending terminal device.

In an alternative embodiment, the transmitting terminal device may periodically transmit the transmission status information of the SL to the network device. In another alternative embodiment, the sending terminal device may trigger sending the transmission status information of the SL to the network device when the transmission status of the data packet of the SL is poor or the signal quality of the SL is poor, which is not limited in this application.

In an alternative embodiment, the transmitting terminal device may send (or report) the transmission status information of SL to the network device through side link user information (sidelink ue information) or user auxiliary information (ue assumasideinformation).

In an alternative embodiment, the sending terminal device performing S301 may trigger the network device to perform S302.

S302: the network device transmits to the transmitting terminal device indication information for indicating activation or deactivation of the packet duplication function of the SL. Correspondingly, the sending terminal equipment receives the indication information sent by the network equipment.

The indication information may be determined by the network device according to transmission status information of the SL.

In an alternative embodiment, the indication information is used to instruct the transmitting terminal device to activate the packet duplication function of the SL, in case the transmission status information of the SL satisfies one or more of the first to fourth conditions. That is, when the transmission state of the data packet of the SL is poor, the network device indicates that one or more parameters included in the transmission state information of the SL as described above indicate that the transmission state of the data packet on the SL is poor, or that the signal quality of the SL is poor, and one or more parameters included in the signal quality information of the SL as described above indicate that the signal quality of the communication link of the SL is poor, and the indication information is used to instruct the transmitting terminal device to activate the packet duplication function of the SL. In the case where the transmission state information of the SL satisfies one or more of the fifth to eighth conditions, the instruction information is for instructing the transmitting terminal device to deactivate the packet duplication function of the SL. That is, the network device is better in the packet transmission state of the SL, where one or more parameters included in the transmission state information of the SL as described above indicate that the packet transmission state of the SL is better, or the signal quality of the SL is better, and where one or more parameters included in the signal quality information of the SL as described above indicate that the signal quality of the communication link of the SL is better, the indication information is used to instruct the transmitting terminal device to deactivate the packet duplication function of the SL. The first condition to the eighth condition are described with reference to fig. 2, and will not be described in detail herein.

Alternatively, the network device may send the indication information to the transmitting terminal device through radio resource control (Radio Resource Control, RRC) signaling or system information block (System Information Block, SIB).

In an alternative embodiment, the SL packet copy function is activated, so that the transmitting terminal device may send (report) to the network device the transmission status information of the SL between the transmitting terminal device and the receiving terminal device, and the network device decides whether to deactivate the SL packet copy function.

In another alternative embodiment, the SL packet replication function is in a deactivated state, so that the transmitting terminal device may send (report) transmission status information of the SL between the transmitting terminal device and the receiving terminal device to the network device, and the network device decides whether to activate the SL packet replication function.

S303: the transmitting terminal device activates or deactivates the packet duplication function of the SL according to the indication information.

Alternatively, in the case where the instruction information is for instructing the transmitting terminal device to activate the packet duplication function of the SL, the transmitting terminal device activates the packet duplication function of the SL. In the case where the instruction information is for instructing the transmitting terminal device to deactivate the packet duplication function of the SL, the transmitting terminal device deactivates the packet duplication function of the SL.

It can be seen that in the communication method shown in fig. 3, the transmitting terminal device may send transmission status information of SL between the transmitting terminal device and the receiving terminal device to the network device, and the network device may generate indication information according to the transmission status information of SL, so as to facilitate the flexible activation or deactivation of the packet duplication function by the transmitting terminal device according to the indication information. Because the transmission status information of the SL may indicate the transmission status of communication data on the SL, that is, may indicate the transmission status of a data packet of the SL or the signal quality of the SL, the network device may determine, according to the transmission status of the data packet of the SL or the signal quality of the SL, indication information for activating or deactivating the packet duplication function, and then the transmitting terminal device activates or deactivates the packet duplication function according to the indication information, so that the transmission of the data packet is adapted to the transmission status of the data packet of the SL or the signal quality of the SL, thereby improving data transmission reliability or improving data transmission efficiency. For example, when the data packet transmission state of the SL is poor or the signal quality of the SL is poor, the network device may transmit indication information for activating the packet duplication function, and the transmitting terminal device may activate the packet duplication function based on the indication information, thereby improving the reliability of data transmission. When the transmission state of the data packet of the SL is good or the signal quality of the SL is good, the reliability of the data packet is also high, and at this time, the network device may send the indication information for deactivating the packet duplication function, and the sending terminal device may deactivate the packet duplication function based on the indication information, thereby improving the data transmission efficiency and reducing the waste of transmission resources.

Referring to fig. 4, fig. 4 shows a schematic flow chart of another communication method that can be applied to the communication system shown in fig. 1 a-1 d or other systems similar to the communication system shown in fig. 1 a-1 d. The communication method may activate or deactivate a packet duplication function of the SL based on the indication information. As shown in fig. 4, the communication method may include, but is not limited to, S401-S402:

s401: receiving indication information, wherein the indication information is used for indicating that a packet copy function of the SL is activated or deactivated.

Correspondingly, the communication method may further comprise the step of transmitting the indication information.

For example, the receiving terminal device may transmit the indication information, and accordingly, the transmitting terminal device may perform step S401 to receive the indication information. Alternatively, the receiving terminal device may send the indication information to the sending terminal device through RRC signaling of the PC5 interface. Alternatively, the indication information may be a field in RRC signaling of the PC5 interface.

For another example, the network device may transmit the indication information, and accordingly, the transmitting terminal device may perform step S401 to receive the indication information. Alternatively, the network device may send the indication information to the sending terminal device through dedicated RRC signaling. Alternatively, the indication information may be a field in dedicated RRC signaling.

For another example, the transmitting terminal device may transmit the indication information, and correspondingly, the network device may perform step S401 to receive the indication information. Alternatively, the transmitting terminal device may transmit the indication information to the network device through the sidackueinformation or ueassetanceinformation. Alternatively, the indication information may be a field in the sidackueinformation or ueassetanceinformation.

Alternatively, the indication information may be determined according to transmission state information of the SL. In an alternative embodiment, the indication information is used to indicate that the packet duplication function of the SL is activated, in case the transmission status information of the SL satisfies one or more of the first to fourth conditions. That is, the transmission status of the data packet of the SL is poor, and one or more parameters included in the transmission status information of the SL as described above indicate that the transmission status of the data packet on the SL is poor, or the signal quality of the SL is poor, and one or more parameters included in the signal quality information of the SL as described above indicate that the signal quality of the communication link of the SL is poor, and the indication information may be used to indicate that the packet duplication function of the SL is activated.

In the case where the transmission state information of the SL satisfies one or more of the fifth to eighth conditions, the instruction information is for instructing to deactivate the packet duplication function of the SL. That is, the transmission status of the data packet of the SL is better, and one or more parameters included in the transmission status information of the SL as described above indicate that the transmission status of the data packet on the SL is better, or the signal quality of the SL is better, and one or more parameters included in the signal quality information of the SL as described above indicate that the signal quality of the communication link of the SL is better, and the indication information is used to indicate that the packet duplication function of the SL is deactivated.

The first condition to the eighth condition are described with reference to fig. 2, and will not be described in detail herein.

S402: and activating or deactivating the packet copy function of the SL according to the indication information.

In an alternative embodiment, the packet replication function of the SL is in an active state, for example, when the packet replication function is configured, the packet replication function may be activated by default, that is, when the packet replication function is configured, the packet replication function of the SL is in an active state, so that if the indication information indicates that the packet replication function of the SL is deactivated, the packet replication function of the SL may be deactivated when step S402 is performed.

In another alternative embodiment, the packet replication function of the SL is in a deactivated state, for example, when the packet replication function is configured, the packet replication function may be deactivated by default, that is, when the packet replication function is configured, the packet replication function of the SL is in a deactivated state, so that if the indication information indicates that the packet replication function of the SL is activated, the packet replication function of the SL may be activated when step S402 is performed.

In summary, the communication method shown in fig. 4 can flexibly activate or deactivate the packet duplication function according to the indication information. Since the transmission status information of the SL may indicate a communication data transmission status on the SL, that is, may indicate a data packet transmission status of the SL or signal quality of the SL, the indication information is determined according to the data packet transmission status of the SL or the signal quality of the SL to indicate activation or deactivation of the packet duplication function, so that transmission of the data packet is adapted to the data packet transmission status of the SL or the signal quality of the SL, thereby improving data transmission reliability or improving data transmission efficiency. For example, when the data packet transmission state of the SL is poor or the signal quality of the SL is poor, the determined indication information may be used to indicate to activate the packet duplication function, so as to improve the reliability of data transmission, and when the data packet transmission state of the SL is good or the signal quality of the SL is good, the determined indication information may be used to indicate to deactivate the packet duplication function, so as to improve the data transmission efficiency and reduce the waste of transmission resources.

In the present application, as can be seen from the above examples, the communication method shown in fig. 4 is applicable to a transmitting terminal device, that is, the transmitting terminal device may perform S401-S402 shown in fig. 4, receive indication information, and activate or deactivate a packet duplication function of SL according to the indication information.

In a possible implementation, the transmitting terminal device may receive the indication information from the receiving terminal device and activate or deactivate the packet duplication function of the SL according to the indication information. The corresponding embodiment of this implementation can be seen in the communication method described with reference to fig. 5. In the communication method shown in fig. 5, the sending terminal device may be a terminal device in a distributed resource scheduling mode in the SL, so that the sending terminal device may select transmission resources from the configured resource pool, and accordingly, the sending terminal device may decide to activate or deactivate the packet duplication function of the SL.

In another possible implementation, the transmitting terminal device may receive the indication information from the network device, and activate or deactivate the packet duplication function of the SL according to the indication information. An embodiment corresponding to this implementation can be seen in the communication method shown in fig. 4. Alternatively, before the transmitting terminal device receives the indication information from the network device, the transmission status information of the SL may be reported, i.e. corresponding to the communication method shown in fig. 3, which is not described in detail herein. In the communication method described in fig. 3, the transmitting terminal device may be a terminal device in a centralized resource scheduling mode in the SL, so that the network device is required to dynamically schedule transmission resources for the transmitting terminal device in real time, and accordingly, the network device makes a decision to activate or deactivate the packet copy function of the SL.

In this application, the communication method shown in fig. 4 is applicable to a network device, that is, the network device may perform S401-S402 shown in fig. 4, receive indication information, and activate or deactivate a packet duplication function of SL according to the indication information, as shown in the above example. The corresponding embodiment of this implementation can be seen in the communication method described with reference to fig. 6. The communication method shown in fig. 6 is different from the communication method shown in fig. 3 in that, after receiving the indication information reported by the sending terminal device, the network device instructs the sending terminal device to activate or deactivate the SL packet duplication function, instead of instructing the sending terminal device to activate or deactivate the SL packet duplication function after receiving the transmission status information of the SL reported by the sending terminal device as shown in fig. 3. Accordingly, in the communication method shown in fig. 6, the transmitting terminal device may be a terminal device in a centralized resource scheduling mode in the SL, so that the network device is required to dynamically schedule transmission resources to the transmitting terminal device in real time, and accordingly, the network device makes a decision to activate or deactivate the packet copy function of the SL.

Referring to fig. 5, fig. 5 shows a flow chart of a communication method. In the communication method shown in fig. 5, explanation will be given taking an example in which the transmitting terminal device can receive the instruction information from the receiving terminal device. As shown in fig. 5, the communication method may include, but is not limited to, S501-S502:

S501: the receiving terminal device sends indication information to the sending terminal device, and the sending terminal device receives the indication information correspondingly.

Wherein the indication information is used to indicate that the packet duplication function of the SL is activated or deactivated.

Optionally, the receiving terminal device sends the indication information to activate the packet duplication function of the SL when the transmission status of the data packet of the SL is poor, where one or more parameters included in the transmission status information of the SL indicate that the transmission status of the data packet on the SL is poor, or the signal quality of the SL is poor, where one or more parameters included in the signal quality information of the SL indicate that the signal quality of the communication link of the SL is poor. Optionally, the receiving terminal device sends the indication information to deactivate the packet duplication function of the SL when the transmission status of the data packet of the SL is good, where one or more parameters included in the transmission status information of the SL indicate that the transmission status of the data packet on the SL is good, or the signal quality of the SL is good, where one or more parameters included in the signal quality information of the SL indicate that the signal quality of the communication link of the SL is good. Alternatively, the indication information sent by the receiving terminal device may be determined according to transmission status information of the SL. In the case where the transmission state information of the SL satisfies one or more of the first to fourth conditions, the instruction information is for instructing the transmitting terminal device to activate the packet copy function of the SL. In the case where the transmission state information of the SL satisfies one or more of the fifth to eighth conditions, the instruction information is for instructing the transmitting terminal device to deactivate the packet duplication function of the SL. The first condition to the eighth condition are described with reference to fig. 2, and will not be described in detail herein.

S502: the transmitting terminal device activates or deactivates the packet duplication function of the SL according to the indication information.

In an alternative embodiment, the transmitting terminal device activates the packet duplication function of the SL in case the indication information is used to instruct the transmitting terminal device to activate the packet duplication function of the SL. In the case where the instruction information is for instructing the transmitting terminal device to deactivate the packet duplication function of the SL, the transmitting terminal device deactivates the packet duplication function of the SL.

As can be seen, in the communication method shown in fig. 5, the transmitting terminal device can flexibly activate or deactivate the packet duplication function according to the indication information from the receiving terminal device. Since the transmission status information of the SL may indicate a communication data transmission status on the SL, that is, may indicate a data packet transmission status of the SL or signal quality of the SL, the receiving terminal device determines the indication information according to the data packet transmission status of the SL or signal quality of the SL to indicate whether to activate the packet duplication function, so that transmission of the data packet may be adapted to the data packet transmission status of the SL or signal quality of the SL, thereby improving data transmission reliability or improving data transmission efficiency. For example, when the transmission state of the data packet of the SL is poor or the signal quality of the SL is poor, the indication information determined by the receiving terminal device at this time may be used to indicate to activate the packet duplication function, so as to improve the reliability of data transmission; when the transmission state of the data packet of the SL is good or the signal quality of the SL is good, the indication information determined by the receiving terminal equipment can be used for indicating to deactivate the packet duplication function, so that the data transmission efficiency is improved, and the waste of transmission resources is reduced.

Referring to fig. 6, fig. 6 shows a flow chart of a communication method. In the communication method shown in fig. 6, the network device may receive the indication information from the transmitting terminal device, for example, for explanation. For convenience of explanation, the indication information received by the network device from the transmitting terminal device is referred to as first indication information, and the indication information transmitted by the network device to the transmitting terminal device is referred to as second indication information. As shown in fig. 6, the communication method may include, but is not limited to, S601-S603:

s601: the sending terminal equipment sends first indication information to the network equipment; correspondingly, the network device receives the first indication information.

Wherein the first indication information is used for indicating that the sending terminal equipment suggests or recommends to activate or deactivate the packet duplication function of the SL. Optionally, when the transmission state of the data packet of the SL is good, one or more parameters included in the transmission state information of the SL as described above indicate that the transmission state of the data packet on the SL is good, or the signal quality of the SL is good, and one or more parameters included in the signal quality information of the SL as described above indicate that the signal quality of the communication link of the SL is good, the transmitting terminal device may send the first indication information to suggest or recommend that the packet duplication function of the SL be deactivated. In the case that the transmission state of the data packet of the SL is poor, one or more parameters included in the transmission state information of the SL as described above indicate that the transmission state of the data packet on the SL is poor, or the signal quality of the SL is poor, one or more parameters included in the signal quality information of the SL as described above indicate that the signal quality of the communication link of the SL is poor, the transmitting terminal device may send first indication information to suggest or recommend that the packet duplication function of the SL be activated.

Alternatively, the transmitting terminal device may determine the first indication information based on transmission state information of the SL; alternatively, the transmitting terminal device may receive the indication information from the receiving terminal device (e.g., referred to as third indication information, i.e., activation or deactivation of the SL packet replication function based on the indication of the receiving terminal device) to determine the first indication information.

Wherein the first indication information is used for indicating that the packet copy function of the SL is suggested or recommended to be activated in a case where the transmission state information of the SL satisfies one or more of the first to fourth conditions with respect to a manner of determining the first indication information based on the transmission state information of the SL. In the case where the transmission state information of the SL satisfies one or more of the fifth to eighth conditions, the first indication information is used to indicate that the packet duplication function of the SL is recommended or recommended to be deactivated. The first condition to the eighth condition are described with reference to fig. 2, and will not be described in detail herein.

The receiving terminal device determines the relevant content of the third indication information based on the transmission status information of the SL, which is described in the above corresponding embodiment, and will not be described in detail here.

In an alternative embodiment, the sending terminal device executing S601 may trigger the network device to execute S602.

S602: the network device sends second indication information to the sending terminal device, and correspondingly, the sending terminal device receives the second indication information, where the second indication information is used to instruct to activate or deactivate a packet duplication function of the SL.

That is, the second indication information is indication information of activation or deactivation of the packet copy function of the SL by the network device decision.

The network equipment determines second indication information according to the first indication information. For example, if the first indication information indicates that the packet duplication function of the SL is recommended or recommended to be activated, and if the network device agrees to activate, the determined second indication information is used to indicate that the packet duplication function of the SL is activated; if the first indication information indicates that the packet duplication function of the SL is recommended or recommended, and if the network device agrees to deactivate, the determined second indication information is used for indicating that the packet duplication function of the SL is deactivated. Alternatively, if the network device does not agree with the status of the suggestion or recommendation of the first indication, the second indication may not necessarily be consistent with the first indication, and will not be described in detail herein.

S603: the transmitting terminal device activates or deactivates the packet duplication function of the SL according to the second indication information.

In an alternative embodiment, the transmitting terminal device activates the packet duplication function of the SL in case the second indication information is used to instruct the transmitting terminal device to activate the packet duplication function of the SL. In the case where the second instruction information is for instructing the transmitting terminal device to deactivate the packet duplication function of the SL, the transmitting terminal device deactivates the packet duplication function of the SL.

As can be seen, in the communication method shown in fig. 6, the transmitting terminal device flexibly activates or deactivates the packet duplication function according to the second instruction information from the network device. The transmission state information of the SL may indicate a communication data transmission condition on the SL, that is, may indicate a data packet transmission state of the SL or signal quality of the SL, and the sending terminal device determines the first indication information according to the data packet transmission state of the SL or the signal quality of the SL to indicate whether to activate the packet duplication function, so that the network device may determine the second indication information according to the first indication information, so that the network device may also consider its own decision while considering the data packet transmission state of the SL or the signal quality of the SL, thereby facilitating the network device to make a global decision to improve data transmission reliability or improve data transmission efficiency. For example, when the data packet transmission state of the SL is poor or the signal quality of the SL is poor, at this time, the first indication information may suggest or recommend to activate the packet duplication function, and the network device may consider whether to improve the reliability of the data transmission through the packet duplication function based on the first indication information; when the transmission state of the data packet of the SL is good or the signal quality of the SL is good, at this time, the first indication information may suggest or recommend to deactivate the packet duplication function, and the network device may consider whether to improve the data transmission efficiency and reduce the waste of transmission resources based on the first indication information.

The foregoing description of the embodiments of the present application has been presented primarily from a method-side perspective. It will be appreciated that the transmitting terminal device and the network device, in order to implement the above-mentioned functions, comprise corresponding hardware structures and/or software modules for performing the respective functions. Those of skill in the art will readily appreciate that the elements and algorithm steps of the examples described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Those skilled in the art may implement the described functionality using different approaches for each particular application, but such implementation is not to be considered as outside the scope of this application.

The embodiment of the application can divide the functional units of the sending terminal equipment and the network equipment according to the method example. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated in one processing unit. The integrated units described above may be implemented either in hardware or in software program modules. It should be noted that, in the embodiment of the present application, the division of the units is schematic, but only one logic function is divided, and another division manner may be implemented in actual implementation.

In the case of using integrated units, fig. 7 is a functional unit block diagram of a communication apparatus according to an embodiment of the present application. The communication apparatus 700 includes: an acquisition unit 701 and a processing unit 702.

The acquisition unit 701 may be a module unit for processing signals, data, information, and the like, and is not particularly limited. The processing unit 702 may be a module unit for processing signals, data, information, and the like, and is not particularly limited.

The communication device 700 may also include a storage unit for storing computer program code or instructions for execution by the communication device 700. The memory unit may be a memory.

In addition, the communication device 700 may be a chip or a chip module.

Alternatively, the acquisition unit 701 and the processing unit 702 may be integrated in one unit. For example, the acquisition unit 701 and the processing unit 702 may be integrated in one integrated unit. The integrated unit may be a processor or controller, and may be, for example, a central processing unit (central processing unit, CPU), a general purpose processor, a digital signal processor (digital signal processor, DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (field programmable gate array, FPGA), or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. An integrated unit may also be a combination that performs the function of a computation, e.g. comprising one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

The acquisition unit 701 and the processing unit 702 may be separate units. For example, the acquisition unit 701 may be a communication unit. The communication unit may be a communication interface, transceiver circuitry, etc.

In particular implementation, the processing unit 702 is configured to perform any of the steps in the method embodiments described above, and when performing data transmission such as sending, the obtaining unit 701 is optionally invoked to complete a corresponding operation. The following is a detailed description.

An acquisition unit 701 for acquiring transmission state information of SL, which is a communication link between a transmitting terminal device and a receiving terminal device, for indicating a transmission condition of communication data on the SL;

a processing unit 702, configured to activate or deactivate a packet duplication function of the SL according to the transmission status information of the SL.

Specifically, the transmission status information of the SL includes one or more of signal quality information of the SL, feedback information of the receiving terminal device, packet loss rate, and packet transmission delay.

Specifically, the communication apparatus 700 may be a network device or a related apparatus in the network device, such as a chip or a chip module, and the acquiring unit 701 is configured to acquire transmission status information of the SL, including:

Specifically, the communication apparatus 700 may be a network device or a related apparatus in the network device, such as a chip or a chip module, and the processing unit 702 is configured to activate or deactivate a packet duplication function of the SL according to transmission status information of the SL, including:

Specifically, the signal quality information of SL includes RSRQ and/or RSRP;

the feedback information includes an ACK and/or a NACK.

Specifically, the processing unit 702 is configured to activate or deactivate a packet duplication function of the SL according to transmission status information of the SL, and includes:

Therefore, according to the embodiment of the application, the packet replication function can be flexibly activated according to the transmission state information of the SL, so that the reliability of data transmission is improved, or the packet replication function can be flexibly deactivated according to the transmission state information of the SL, the data transmission efficiency is effectively improved, and the waste of transmission resources is reduced.

In the case of using an integrated unit, fig. 8 is a functional unit block diagram of another communication apparatus of the embodiment of the present application. The communication apparatus 800 includes: a receiving unit 801 and a processing unit 802.

The reception unit 801 may be a module unit for processing signals, data, information, and the like, and is not particularly limited. The processing unit 802 may be a module unit for processing signals, data, information, and the like, and is not particularly limited.

The communication device 800 may also include a storage unit for storing computer program code or instructions for execution by the communication device 800. The memory unit may be a memory.

In addition, the communication device 800 may be a chip or a chip module.

The receiving unit 801 and the processing unit 802 may be integrated in one unit. For example, the receiving unit 801 and the processing unit 802 may be integrated in one integrated unit. The integrated unit may be a processor or controller, and may be, for example, a CPU, general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. An integrated unit may also be a combination that performs the function of a computation, e.g. comprising one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

The receiving unit 801 and the processing unit 802 may be separate units. For example, the receiving unit 801 may be a communication unit. The communication unit may be a communication interface, transceiver circuitry, etc.

In particular implementations, the processing unit 802 is configured to perform any of the steps of the method embodiments described above, and when performing, for example, receiving a data transmission, optionally invokes the receiving unit 801 to perform the corresponding operations. The following is a detailed description.

The receiving unit 801 is configured to receive indication information; the indication information is used for indicating to activate or deactivate the packet copy function of the SL; the SL is a communication link between a transmitting terminal device and a receiving terminal device; the indication information is determined according to transmission state information of the SL; the transmission state information of the SL is used for indicating the transmission condition of communication data on the SL;

the processing unit 802 is configured to activate or deactivate a packet duplication function of the SL according to the indication information.

Specifically, the communication device 800 may be a transmitting terminal device or a related device in the transmitting terminal device, such as a chip or a chip module, and the receiving unit 801 is configured to receive the indication information, including:

Specifically, the communication device 800 may be a transmitting terminal device or a related device in the transmitting terminal device, such as a chip or a chip module, and before the receiving unit 801 is configured to receive the indication information sent by the network device, the receiving unit 801 is further configured to:

Specifically, the communication apparatus 800 may be a network device or a related apparatus in the network device, such as a chip or a chip module, and the receiving unit 801 is configured to receive the indication information, including:

Specifically, the signal quality information of the SL includes RSRQ and/or RSRP;

the feedback information includes an ACK and/or a NACK.

Specifically, in the case where the transmission state information of the SL satisfies one or more of the first to fourth conditions, the instruction information is for instructing to activate the packet duplication function of the SL;

Therefore, the embodiment of the application can receive the indication information determined by the transmission state information of the SL and flexibly activate the packet copying function according to the indication information, so that the reliability of data transmission is improved, or receive the indication information determined by the transmission state information of the SL and flexibly deactivate the packet copying function according to the indication information, thereby effectively improving the data transmission efficiency and reducing the waste of transmission resources.

In the case of employing integrated units, fig. 9 is a functional unit composition block diagram of still another communication apparatus of the embodiment of the present application. The communication apparatus 900 includes: a transmitting unit 901.

The transmission unit 901 may be a module unit for processing signals, data, information, and the like, and is not particularly limited.

The communication device 900 may also include a storage unit for storing computer program code or instructions for execution by the communication device 900. The memory unit may be a memory.

In addition, the communication device 900 may be a chip or a chip module.

The transmitting unit 901 may be integrated in one integrated unit. The integrated unit may be a processor or controller, and may be, for example, a CPU, general-purpose processor, DSP, ASIC, FPGA, or other programmable logic device, transistor logic device, hardware component, or any combination thereof. Which may implement or perform the various exemplary logical blocks, modules, and circuits described in connection with the present disclosure. An integrated unit may also be a combination that performs the function of a computation, e.g. comprising one or more microprocessor combinations, a combination of a DSP and a microprocessor, etc.

The transmitting unit 901 may be a communication unit. The communication unit may be a communication interface, transceiver circuitry, etc. The following is a detailed description.

The sending unit 901 is configured to send indication information; the indication information is used for indicating to activate or deactivate the packet copy function of the SL; the SL is a communication link between a transmitting terminal device and a receiving terminal device; the indication information is determined according to transmission state information of the SL; the transmission status information of the SL is used to indicate the transmission of communication data on the SL.

Alternatively, the communication device 900 may be a receiving terminal device or a related device in the receiving terminal device, such as a chip or a chip module; the transmitting unit 901 is configured to transmit indication information, including: and sending the indication information to the sending terminal equipment.

Optionally, the communication device 900 may be a network device or a related device in the network device, such as a chip or a chip module; the transmitting unit 901 is configured to transmit indication information, including: and sending the indication information to the sending terminal equipment.

Specifically, the communication device 900 may be a transmitting terminal device or a related device in the transmitting terminal device, such as a chip or a chip module; the transmitting unit 901 is configured to transmit indication information, including:

and sending the indication information to the network equipment.

the feedback information includes an ACK and/or a NACK.

Therefore, the embodiment of the application can send the indication information for indicating the activation of the packet replication function, so that the flexible activation of the packet replication function based on the indication information is facilitated, and the reliability of data transmission is effectively improved. Or sending the indication information for indicating the deactivation of the packet replication function, thereby being beneficial to flexibly deactivating the packet replication function based on the indication information, effectively improving the data transmission efficiency and reducing the waste of transmission resources.

The embodiment of the application also provides a transmitting terminal device, which comprises a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to realize the steps executed by the transmitting terminal device described in the embodiment of the method.

The embodiment of the application also provides a receiving terminal device, which comprises a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to realize the steps executed by the receiving terminal device described in the embodiment of the method.

The embodiment of the application also provides a network device, which comprises a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to realize the steps executed by the network device described in the embodiment of the method.

The embodiment of the application also provides a chip, which comprises a processor, a memory and a computer program or instructions stored on the memory, wherein the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.

The embodiment of the application also provides a chip module, which comprises a transceiver component and a chip, wherein the chip comprises a processor, a memory and a computer program or instructions stored on the memory, and the processor executes the computer program or instructions to realize the steps described in the embodiment of the method.

The present application also provides a computer-readable storage medium storing a computer program or instructions which, when executed by a processor, implement the steps described in the method embodiments above.

Embodiments of the present application also provide a computer program product comprising a computer program or instructions which, when executed by a processor, implement the steps described in the method embodiments above.

The steps of a method or algorithm described in the embodiments of the present application may be implemented in hardware, or may be implemented by executing software instructions by a processor. The software instructions may be comprised of corresponding software modules that may be stored in RAM, flash memory, ROM, erasable programmable read-only memory (erasable programmable ROM, EPROM), electrically erasable programmable read-only memory (EEPROM), registers, hard disk, a removable disk, a compact disc read-only memory (CD-ROM), or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor such the processor can read information from, and write information to, the storage medium. In the alternative, the storage medium may be integral to the processor. The processor and the storage medium may reside in an ASIC. In addition, the ASIC may reside in a terminal device (including a transmitting terminal device and a receiving terminal device) or in a network device. It is also possible that the processor and the storage medium reside as discrete components in a terminal device (including a transmitting terminal device and a receiving terminal device) or in a network device.

Those of skill in the art will appreciate that in one or more of the above examples, the functions described in the embodiments of the present application may be implemented, in whole or in part, in software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, produces a flow or function in accordance with embodiments of the present application, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)), or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains an integration of one or more available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (digital video disc, DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like.

The foregoing embodiments have been provided for the purpose of illustrating the embodiments of the present application in further detail, and it should be understood that the foregoing embodiments are not intended to limit the scope of the embodiments of the present application, and any modifications, equivalents, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application are included in the scope of the embodiments of the present application.

Claims

1. A method of communication, the method comprising:

acquiring transmission state information of a side link SL, wherein the SL is a communication link between a transmitting terminal device and a receiving terminal device, and the transmission state information of the SL is used for indicating the transmission condition of communication data on the SL;

and activating or deactivating a packet copy function of the SL according to the transmission state information of the SL.

2. The method of claim 1, wherein the transmission status information of the SL includes one or more of signal quality information of the SL, feedback information of the receiving terminal device, a packet loss rate, and a packet transmission delay.

3. The method according to claim 1 or 2, wherein the method is applied to a network device, and the acquiring transmission status information of the SL includes:

And receiving the transmission state information of the SL sent by the sending terminal equipment.

4. A method according to claim 3, wherein said activating or deactivating a packet duplication function of said SL based on transmission status information of said SL comprises:

transmitting indication information to the transmitting terminal equipment; the indication information is used for indicating to activate or deactivate a packet copy function of the SL.

5. The method of claim 2, wherein the signal quality information of the SL comprises a reference signal received quality, RSRQ, and/or a reference signal received power, RSRP;

the feedback information includes a determination of acknowledgement, ACK, and/or negative acknowledgement, NACK.

6. The method of claim 5, wherein the activating or deactivating the packet duplication function of the SL according to the transmission status information of the SL comprises:

the first condition is that the RSRQ in the transmission status information of the SL is less than a first threshold, or the RSRP in the transmission status information of the SL is less than a second threshold, or the RSRQ in the transmission status information of the SL is less than a first threshold and the RSRP is less than a second threshold; the second condition is that the number of feedback information of the NACK included in the transmission state information of the SL is greater than a third threshold, or the number of feedback information of the ACK included in the transmission state information of the SL is less than a fourth threshold, or the number of feedback information of the NACK included in the transmission state information of the SL is greater than a third threshold and the number of feedback information of the ACK is less than a fourth threshold; the third condition is that the packet loss rate in the transmission state information of the SL is greater than a fifth threshold; the fourth condition is that the packet transmission delay in the transmission state information of the SL is greater than a sixth threshold;

The fifth condition is that the RSRQ in the transmission status information of the SL is greater than or equal to a first threshold, or the RSRP in the transmission status information of the SL is greater than or equal to a second threshold; the sixth condition is that the number of feedback information of the NACK included in the transmission state information of the SL is equal to or less than a third threshold, or the number of feedback information of the ACK included in the transmission state information of the SL is equal to or greater than a fourth threshold; the seventh condition is that the packet loss rate in the transmission state information of the SL is less than or equal to a fifth threshold; the eighth condition is that the packet transmission delay in the transmission status information of the SL is less than or equal to a sixth threshold.

7. A method of communication, the method comprising:

receiving indication information; the indication information is used for indicating to activate or deactivate the packet copy function of the side link SL; the SL is a communication link between a transmitting terminal device and a receiving terminal device; the indication information is determined according to transmission state information of the SL; the transmission state information of the SL is used for indicating the transmission condition of communication data on the SL;

and activating or deactivating a packet copy function of the SL according to the indication information.

8. The method of claim 7, wherein the method is applied to a transmitting terminal device, the receiving indication information comprises:

9. The method of claim 8, wherein prior to receiving the indication information sent by the network device, the method further comprises:

and transmitting the transmission state information of the SL to the network equipment.

10. The method of claim 7, wherein the method is applied to a network device, the receiving indication information comprises:

11. The method according to any of claims 7-10, wherein the transmission status information of the SL comprises one or more of signal quality information of the SL, feedback information of the receiving terminal device, packet loss rate, packet transmission delay.

12. The method of claim 11, wherein the signal quality information for the SL comprises a reference signal received quality, RSRQ, and/or a reference signal received power, RSRP;

13. The method of claim 12, wherein,

in the case where the transmission state information of the SL satisfies one or more of the first to fourth conditions, the indication information is for indicating activation of a packet copy function of the SL;

14. A method of communication, the method comprising:

transmitting indication information; the indication information is used for indicating to activate or deactivate the packet copy function of the side link SL; the SL is a communication link between a transmitting terminal device and a receiving terminal device; the indication information is determined according to transmission state information of the SL; the transmission status information of the SL is used to indicate the transmission situation of the communication data on the SL.

15. The method of claim 14, wherein the method is applied to the receiving terminal device or network device, the sending indication information comprises:

And sending indication information to the sending terminal equipment.

16. The method of claim 14, wherein the method is applied to the transmitting terminal device, and the transmitting indication information comprises:

and sending the indication information to the network equipment.

17. The method according to any of claims 14-16, wherein the transmission status information of the SL comprises one or more of signal quality information of the SL, feedback information of the receiving terminal device, packet loss rate, packet transmission delay.

18. The method of claim 17, wherein the signal quality information for the SL comprises a reference signal received quality, RSRQ, and/or a reference signal received power, RSRP;

19. The method of claim 18, wherein,

20. A communication device, the device comprising:

an acquisition unit configured to acquire transmission state information of a side link SL, where the SL is a communication link between a transmitting terminal device and a receiving terminal device, and the transmission state information of the SL is used to indicate a transmission condition of communication data on the SL;

21. A communication device, the device comprising:

a receiving unit for receiving the indication information; the indication information is used for indicating to activate or deactivate the packet copy function of the side link SL; the SL is a communication link between a transmitting terminal device and a receiving terminal device; the indication information is determined according to transmission state information of the SL; the transmission state information of the SL is used for indicating the transmission condition of communication data on the SL;

22. A communication device, the device comprising:

a transmitting unit configured to transmit the indication information; the indication information is used for indicating to activate or deactivate the packet copy function of the side link SL; the SL is a communication link between a transmitting terminal device and a receiving terminal device; the indication information is determined according to transmission state information of the SL; the transmission status information of the SL is used to indicate the transmission situation of the communication data on the SL.

23. A communication device, characterized in that the device comprises a processor and a memory, which are connected to each other, wherein the memory is adapted to store a computer program, which computer program comprises program instructions, which processor executes to implement the communication method according to any one of claims 1 to 6, or the communication method according to any one of claims 7 to 13, or the communication method according to any one of claims 14 to 19.

24. A computer readable storage medium, characterized in that the computer readable storage medium stores a computer program comprising program instructions which, when executed, are adapted to carry out the communication method of any one of claims 1 to 6, or the communication method of any one of claims 7 to 13, or the communication method of any one of claims 14 to 19.

25. A chip comprising a processor that performs the communication method of any one of claims 1 to 6, or the communication method of any one of claims 7 to 13, or the communication method of any one of claims 14 to 19.

26. A chip module comprising a transceiver component and a chip, the chip comprising a processor, the processor performing the communication method of any one of claims 1 to 6, or the communication method of any one of claims 7 to 13, or the communication method of any one of claims 14 to 19.