CN117676868A

CN117676868A - Sidelink SL copying transmission method, terminal and network equipment

Info

Publication number: CN117676868A
Application number: CN202211091821.1A
Authority: CN
Inventors: 刘佳敏
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2022-09-07
Filing date: 2022-09-07
Publication date: 2024-03-08
Also published as: WO2024051656A1

Abstract

The application discloses a method, a terminal and network side equipment for copying and transmitting a sidelink SL, which belong to the technical field of communication, and the method for copying and transmitting the sidelink SL in the embodiment of the application comprises the following steps: the method comprises the steps that a first terminal receives configuration information sent by network side equipment; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state; and the first terminal performs SL copy transmission based on the configuration information.

Description

Sidelink SL copying transmission method, terminal and network equipment

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method, a terminal and network side equipment for copying and transmitting a sidelink SL.

Background

Long term evolution (Long Term Evolution, LTE) systems support Sidelinks (SL) from release 12, which may also be referred to as sidelinks, etc., for direct data transmission between terminals without via network devices.

In LTE SL, although the transmission by the replication (replication) method is supported, since the start of the replication function is controlled by using a reliability requirement threshold of the service (for example, per-packet reliability (ProSe Per-Packet Reliability, PPPR)) in proximity services (Proximity based Services, proSe), the start of the replication function of LTE is no longer applicable in New air interface (NR) SL systems, and a New QoS parameter such as QoS configuration (profile), 5G quality of service indication (5G QoS indicator,5QI), and PC5 quality of service indication (PC 5 QoS Indicator, PQI) is introduced.

Therefore, for NR SL, there is a need to implement a duplicate transmission method.

Disclosure of Invention

The embodiment of the application provides a sidelink SL copying and transmitting method, a terminal and network side equipment, which can solve the problem of how to realize the SL copying and transmitting method in an NR system.

In a first aspect, a method for duplicating and transmitting a sidelink SL is provided, which is applied to a first terminal, and includes:

the method comprises the steps that a first terminal receives configuration information sent by network side equipment; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state;

and the first terminal performs SL copy transmission based on the configuration information.

In a second aspect, a method for transmitting a sidelink SL copy is provided, and the method is applied to a network side device, and includes:

the network side equipment sends configuration information to a first terminal; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state; the configuration information is used for SL copy transmission of the first terminal.

In a third aspect, there is provided an SL duplicate transmission apparatus, comprising:

the receiving module is used for receiving the configuration information sent by the network side equipment; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state;

and the processing module is used for carrying out SL copying transmission based on the configuration information.

In a fourth aspect, there is provided an SL replication transmission apparatus comprising:

the sending module is used for sending configuration information to the first terminal; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state; the configuration information is used for SL copy transmission of the first terminal.

In a fifth aspect, there is provided a first terminal comprising a processor and a memory storing a program or instructions executable on the processor, which program or instructions when executed by the processor implement the steps of the method as described in the first aspect.

A sixth aspect provides a first terminal, including a processor and a communication interface, where the communication interface is configured to receive configuration information sent by a network side device; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state; the processor is configured to perform SL replication transmission based on the configuration information.

In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.

An eighth aspect provides a network side device, including a processor and a communication interface, where the communication interface is configured to send configuration information to a first terminal; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state; the configuration information is used for SL copy transmission of the first terminal.

In a ninth aspect, there is provided a communication system comprising: the first terminal may be configured to perform the steps of the SL replication transmission method according to the first aspect, and the network side device may be configured to perform the steps of the SL replication transmission method according to the second aspect.

In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.

In an eleventh aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.

In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executable by at least one processor to implement the steps of the SL replication transmission method according to the first or second aspect.

In the embodiment of the application, a first terminal receives configuration information sent by network side equipment; the configuration information is used for assisting the first terminal to carry out SL copy transmission, and the configuration information comprises at least one of the following: the first indication information related to whether the copy function is started, the information related to the logic channel of the copy function, and the indication information of the copy function related state based on the granularity of the SL radio bearer RB and/or the QoS flow. Because the first indication information related to whether the copy function is started is configured based on SLRB and/or QoS flow as granularity, the method is convenient for carrying out finer control on SL copy transmission, for example, the method can be configured in combination with the current specific system load or link condition, so that the SL link can better obtain the gain of copy transmission, and the method can also carry out copy transmission based on the information related to the logic channel of the copy function and the indication information related to the copy function state, and has lower implementation complexity.

Drawings

Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;

fig. 2 is a schematic diagram of a sidelink communication architecture provided in an embodiment of the present application;

fig. 3 is a schematic flow chart of a SL replication transmission method according to an embodiment of the present disclosure;

FIG. 4 is a second flow chart of a SL duplication transmission method according to the embodiment of the application;

fig. 5 is a schematic structural diagram of an SL replication transmission apparatus according to an embodiment of the present disclosure;

fig. 6 is a second schematic structural diagram of an SL replication transmission apparatus according to an embodiment of the present disclosure;

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 a terminal provided in an embodiment of the present application;

fig. 9 is a schematic structural diagram of a network side device according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the terms "first" and "second" are generally intended to be used in a generic sense and not to limit the number of objects, for example, the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.

It is noted that the techniques described in embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the present application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) ^th Generation, 6G) communication system.

Fig. 1 shows a block diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. Note that, the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiments of the present application, only a base station in an NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. In the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.

First, the related concepts related to the embodiments of the present application will be described:

the design of LTE SL is applicable to specific public safety transactions (e.g. emergency communication in disaster sites such as fire or earthquake), or internet of vehicles (vehicle to everything, V2X) communication, etc. The internet of vehicles communication includes various services such as basic security type communication, advanced (automatic) driving, formation, sensor expansion, and the like. Since LTE SL only supports broadcast communications, it is mainly used for basic security class communications, and other advanced V2X services with strict quality of service (Quality of Service, qoS) requirements in terms of latency, reliability, etc. will be supported through New Radio (NR) SL.

The 5G NR system may also support a sip interface for direct communication between terminals, and support three transmission modes of broadcast (broadcast), multicast (multicast), and unicast (unicast). Unicast, as the name implies, is a one-to-one (one to one) transmission. Multicast is a one-to-many (one to management) transmission, and broadcast is also a one to management transmission, but broadcast does not have the concept that terminals belong to the same group. Current SL unicast and multicast communications support physical layer hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ) feedback mechanisms.

NR SL defines two resource allocation modes (modes), one is mode1, scheduling resources for the base station; the other is mode2, where the terminal itself decides what resources to use for transmission, and the resource information may be a broadcast message from the base station or preconfigured information. The terminal may be mode1 and/or mode2 if operating within the range of the base station and having a radio resource control (Radio Resource Control) RRC connection with the base station, and may only operate in mode2 if operating within the range of the base station but not having an RRC connection with the base station. If the terminal is out of range of the base station, it can only operate in mode2, and V2X transmission is performed according to preconfigured information.

In LTE SL, transmission modes of SL carrier aggregation (Carrier Aggregation, CA) and duplication (duplication) are supported, but the activation of the duplication transmission mode is simpler, i.e. when the reliability requirement PPPR of a service is higher than a certain threshold, the duplication transmission mode is turned on, and the parameter is not used in the NR system any more, so that the activation mode of the duplication transmission of LTE cannot be used in the NR system. Therefore, research into SL replica transmission schemes suitable for NR SL systems is required.

The SL replication transmission method provided in the embodiments of the present application is described in detail below with reference to the accompanying drawings through some embodiments and application scenarios thereof.

In an embodiment, the method of the embodiment of the present application may be applied to a scenario as shown in fig. 2.

Fig. 3 is a schematic flow chart of a SL replication transmission method according to an embodiment of the present disclosure. As shown in fig. 3, the method provided in this embodiment includes:

step 101, a first terminal receives configuration information sent by network equipment; the configuration information includes at least one of: the method comprises the steps of enabling a copy function based on SL radio bearer RB and/or QoS flows as first indication information related to whether the copy function is started, logic channel related information of the copy function and indication information of copy function related state;

specifically, whether the first terminal starts the copy function is indicated by the per SL RB/QoS flows, for example, which SL RB/SL QoS flow(s) are copy-on, which SL RB/SL QoS flow(s) are not copy-on; for information related to the logical channel of the RB that opens the copy function, for example, configuration information, main leg information (main logical channel information), carrier group information carried by RLC needs to be given;

the indication information of the copy function related state, such as whether the configuration information is in an activated state or a deactivated state after configuration, a default state, such as automatically restoring the default state if certain conditions are met.

Optionally, for the component carrier (Component Carrier, CC) set, the configuration may be performed with granularity of the terminal, for example, each terminal configures the same or different CC set, or multiple terminals may be configured uniformly, where in general, the configuration is followed by all SL RBs that are applied to each terminal and turn on the copy function, whether the per terminal or the uniform configuration.

Step 102, the first terminal performs SL copy transmission based on the configuration information.

Specifically, the first terminal performs SL copy transmission based on the configuration information configured in step 101, for example, transmits data to the second terminal.

In the method of the embodiment, a first terminal receives configuration information sent by a network side device; the configuration information is used for assisting the first terminal to carry out SL copy transmission, and the configuration information comprises at least one of the following: the method comprises the steps of enabling a copy function based on SL radio bearer RB and/or QoS flows as first indication information related to whether the copy function is started, logic channel related information of the copy function and indication information of copy function related state; because the first indication information related to whether the copy function is started is configured based on SLRB and/or QoS flow as granularity, the method is convenient for carrying out finer control on SL copy transmission, for example, the method can be configured in combination with the current specific system load or link condition, so that the SL link can better obtain the gain of copy transmission, and the method can also carry out copy transmission based on the information related to the logic channel of the copy function and the indication information related to the copy function state, and has lower implementation complexity.

Optionally, the first indication information includes at least one of:

information of SL radio bearer RB for starting copy function;

information of QoS flow for opening copy function;

information of SL RB for which the copy function is not turned on;

information of QoS flows for which the copy function is not started;

a first condition for turning on the copy function.

Optionally, the first condition includes at least one of:

the block error rate is smaller than or equal to the first threshold, the time delay index is smaller than or equal to the second threshold, the priority is smaller than or equal to the third threshold, and the channel busy rate is smaller than or equal to the fourth threshold.

Specifically, the first indication information is based on that the SL RB and/or the SL QoS flows are granular, i.e. it is possible to display, by means of the first indication information, which SL RB/SL QoS flow(s) are copy-on-functional and which SL RB/SL QoS flow(s) are not copy-on-functional;

since at least one logical channel of the SL RB is always configured, for the SL RB and/or the SL QoS flow with the copy function enabled, the second, third, fourth, …, etc. may be configured in addition to it, i.e. for the copy transmission, additional configuration of the logical channel, e.g. information of RLC bearers, e.g. one SL RB/QoS flow with the copy function enabled, may be required, for 2 or even more RLC bearers, wherein each RLC bearer will be used for transmitting one copy of data;

For example, information may also be given about QoS flows/SL RBs and whether the copy function is on, e.g., based on SL RBs, which SL RBs are on (then QoS flows mapped to these SL RBs are all on) and which SL RBs are not on (then QoS flows mapped to these SL RBs are not on); or, whether the copy function is started or not can be indicated based on the QoS flows, which QoS flows have the copy function started, which QoS flows have the copy function not started, the copy transmission mode is adopted for the QoS flows with the copy function started, or the whole SL RB mapped to the QoS flows with the copy function started is started, otherwise, the copy function is not started.

In general, one PDCP entity corresponds to one SL RB, and it is impossible for the PDCP entity to distinguish QoS flow data and to perceive whether a QoS flow is a copy function or not, if the SL RB is a copy function, the corresponding QoS flows are all a copy function, if one of the QoS flows corresponding to the SL RB is a copy function, or if one of the QoS flows corresponding to the SL RB is a copy function, the SL RB is not a copy function;

If the PDCP entity is able to distinguish QoS flow data and perform a copy operation or not for a corresponding QoS flow according to whether each QoS flow starts a copy function.

Or, for the QoS features in the QoS flows, an association configuration may be given as to whether the QoS features and the copy function are opened, for example, if the QoS features meet a first condition, the copy function is opened, for example, the block error rate (SL-packetErrorrate) is lower than a first threshold, the delay index (SL-packetDelayBudge) is lower than a second threshold, the priority (SL-priorityLevel) is lower than a third threshold (for example, the lower the priority value is, the higher the importance thereof is), etc., for the QoS flows meeting at least one of the first condition, the copy function is opened, or for the QoS flows meeting at least one of the first condition, the copy function is opened for the whole SL RB where it is located, otherwise, the copy function is not opened;

for example, the SL link may meet a condition, such as a channel busy rate (Channel Busy Ratio, CBR) being less than or equal to a fourth threshold.

In the above embodiment, the granularity of the configuration information related to whether to start the copy function is finer, so that finer control on SL copy transmission is facilitated, the transmission rate and the receiving effect are improved, and better user experience and system efficiency are obtained.

Optionally, the information related to the logical channel of the copy function includes at least one of:

copying the information of the transmitted logic channel;

carrier group information corresponding to the logic channel;

the transmitted information of the main logical channel is duplicated.

Optionally, the information of the logical channel includes at least one of:

the number of logical channels and the radio links of the logical channels manage the information carried by the RLC.

Optionally, the number of carrier groups is greater than or equal to the number of logical channels.

In particular, the configuration information may configure path information of the duplicate transmission, i.e., information of the logical channel, e.g., 2 legs (leg) or more leg transmission, and the information of the logical channel may further include, e.g., an identification ID of the associated SL RB.

For the SL RB/SL QoS flow with the copy function started, carrier group information needs to be configured, for example, in the case of two legs, at least two carrier groups are configured, wherein a carrier group 1 is used for transmitting data of an RLC bearer 1, and a carrier group 2 is used for transmitting data of the RLC bearer 2;

for SL RB/SL QoS flows with copy function on, the primary leg (i.e. primary logical channel) information is configured, i.e. which RLC bearer the data needs to be transmitted over after the copy function is deactivated.

Optionally, the indication information of the copy function related status includes at least one of:

configuration information of the deactivation state;

the second indication information is used for indicating whether the first terminal, SL RB or QoS flow is in an activated state or a deactivated state after the configuration information is configured;

and copying a default state of the function, wherein the default state is a state of the first terminal, the SL RB or the QoS stream after the second condition is met.

Optionally, the configuration information of the deactivation state includes at least one of:

information of the deactivated logic channel; carrier group information corresponding to the deactivated logic channel; operation configuration information of the layer 2 entity.

Specifically, configuration information of the deactivation state, for example, after deactivation, which leg is reserved for transmission, or after two of the 4 activated legs are deactivated, which two legs are reserved, carrier groups corresponding to the remaining legs, whether the L2 entity needs special operation processing, etc.;

for the SL RB/SL QoS flow with the copy function started, whether the configuration information is in an activated/deactivated state or not after configuration can be generally configured, namely, the configuration information is in an activated state after configuration, namely, the configuration information is also configured, namely, the configuration information is deactivated, namely, the configuration information is in a deactivated state after configuration, and after deactivation, the configuration information is required to wait for dynamic signaling to indicate the copy function to be activated; or, some second conditions may be set, and after the second conditions are met, the system automatically returns to a default state, for example, when the link load is high, the system automatically returns to a deactivated state of the copy function; when the link load is light, the system automatically returns to the active state of the copy function.

Optionally, in the case that the carrier-based granularity measurement result with the second condition being the target parameter is less than or equal to the fourth threshold, the default state is the first state;

under the condition that the second condition is the target parameter and the measurement result based on the carrier wave granularity is larger than or equal to a fifth threshold, the default state is the second state;

the first state is an activated state and the second state is a deactivated state; or, the first state is a deactivated state and the second state is an activated state.

Specifically, when the measurement result based on the carrier wave granularity, which is the second condition as the target parameter, is greater than or equal to the fifth threshold, automatically restoring to the default state, for example, when the measurement result indicates that the link load is high, automatically restoring to the deactivated state; the measurement result indicates that the link is automatically restored to the active state when the link load is light.

For example, when the channel busy rate CBR is less than or equal to the fourth threshold, the default state is the active state; when the channel busy rate CBR is greater than or equal to the fifth threshold, the default state is a deactivated state; the fourth threshold and the fifth threshold may be the same or different.

Optionally, the target parameter comprises at least one of: channel busy rate, reference signal received power (Reference Signal Received Power, RSRP), reference signal received quality (Reference Signal Received Quality, RSRQ).

Optionally, the carrier-based granularity of the target parameter measurement less than or equal to the fourth threshold comprises at least one of:

the measurement result of any one carrier of all the measured carriers is smaller than or equal to a fourth threshold;

the average value of the measured results of all the carriers in all the measured carriers is smaller than or equal to a fourth threshold;

the measurement result of each carrier in all the measured carriers is smaller than or equal to a fourth threshold;

the measurement result of any carrier group corresponding to all the measured carriers is smaller than or equal to a fourth threshold;

the measurement result of each carrier group corresponding to all the measured carriers is smaller than or equal to a fourth threshold;

the average value of the measured results of each carrier group corresponding to all the measured carriers is smaller than or equal to a fourth threshold;

and/or the number of the groups of groups,

the carrier granularity-based measurement of the target parameter being greater than or equal to a fifth threshold comprises at least one of:

the measurement result of any carrier in the carrier group is larger than or equal to a fifth threshold;

the average value of the measurement results of all the carriers in the carrier group is larger than or equal to a fifth threshold;

the measurement result of each carrier in the carrier group is larger than or equal to a fifth threshold;

the measurement result of any carrier group corresponding to all the measured carriers is larger than or equal to a fifth threshold;

The measured result of each carrier group corresponding to all the measured carriers is larger than or equal to a fifth threshold;

the average value of the measured results of each carrier group corresponding to all the measured carriers is larger than or equal to a fifth threshold.

Specifically, for a configured CC set, the target parameter is measured based on each carrier in the CC set as granularity, where the measurement result being greater than or equal to a certain threshold may be that the measurement result of any carrier in the CC set is greater than or equal to the threshold, or that the measurement result of all carriers in the CC set is greater than or equal to the threshold, or that the average value of the measurement results of all carriers in the CC set is greater than or equal to the threshold, or that the measurement result of any carrier group, all carrier groups in the CC set is greater than or equal to the threshold, or that the average value of the measurement results of all carrier groups in the CC set is greater than or equal to the threshold.

The measurement result being less than or equal to a certain threshold may be that the measurement result of any carrier in the CC set is less than or equal to the threshold, or that the measurement result of all carriers in the CC set is less than or equal to the threshold, or that the average value of the measurement results of all carriers in the CC set is less than or equal to the threshold, or that the measurement result of any carrier group, all carrier groups in the CC set is less than or equal to the threshold, or that the average value of the measurement results of all carrier groups in the CC set is less than or equal to the threshold, which is not limited in this embodiment of the present application

Optionally, the measurement result of any carrier belonging to the same carrier group in all the measured carriers is smaller than or equal to a fourth threshold, and the measurement result corresponding to the carrier group is smaller than or equal to the fourth threshold; or alternatively, the first and second heat exchangers may be,

the measurement result of each carrier belonging to the same carrier group in all the measured carriers is smaller than or equal to a fourth threshold, and the measurement result corresponding to the carrier group is smaller than or equal to the fourth threshold;

and if the average value of the measurement results of all the carriers belonging to the same carrier group in all the measured carriers is smaller than or equal to a fourth threshold, the measurement result corresponding to the carrier group is smaller than or equal to the fourth threshold.

Optionally, the measurement result of any carrier belonging to the same carrier group in all the measured carriers is greater than or equal to a fifth threshold, and then the measurement result corresponding to the carrier group is greater than or equal to the fifth threshold; or alternatively, the first and second heat exchangers may be,

the measurement result of each carrier belonging to the same carrier group in all the measured carriers is larger than or equal to a fifth threshold, and the measurement result corresponding to the carrier group is larger than or equal to the fifth threshold;

and if the average value of the measured results of all the carriers belonging to the same carrier group in all the measured carriers is larger than or equal to a fifth threshold, the measured result corresponding to the carrier group is larger than or equal to the fifth threshold.

In the above embodiment, in the SL communication scenario, the specific service needs to be duplicated and transmitted to achieve the ultra-high requirements of reliability and time delay, and configuration may be given according to the system load, the link condition, and the like, so that duplication and transmission and dynamic control may be started on the SL link for the service meeting the requirements, so as to achieve the guarantee and promotion of the communication performance and the system performance in aspects of high QoS and system efficiency, and the like.

Optionally, step 101 may further include:

the first terminal sends first information to the network side equipment, wherein the first information comprises at least one of the following: the method comprises the steps of business service quality QoS requirement information of a first terminal, carrier aggregation CA capability information of the first terminal, replication capability information of the first terminal, carrier aggregation CA capability information of a second terminal, replication capability information of the second terminal and a sub-link measurement result of at least one carrier.

Specifically, for the SL TX terminal in the Uu RRC connected state, if the SL unicast service is initiated, service QoS requirement information of the SL itself may be reported to the network side device (e.g., the serving base station), so as to obtain configuration of the network side device regarding the SL RB and/or the resource, and the like. The method has the advantages that the network side equipment can well decide the configuration for the service of the terminal, and the service requirement, the terminal capacity, the system resource load and the like are fully considered so as to achieve more accurate and dynamic configuration effects.

The TX terminal may then, based on similar principles, also report CA and/or replication capability information of itself and/or of the opposite RX terminal together to the network side device, or even SL measurements on some carriers, from which the network side device may choose to configure the replication function for the TX terminal, or alternatively may send it to the TX terminal in an RRC dedicated signaling manner.

In the above embodiment, before receiving the configuration information, the terminal may feed back QoS requirement information of the service, capability information of the terminal, and the like to the network side device, so that the network side device has a more targeted configuration for copy transmission, and may fully consider the service requirement, the terminal capability, the system resource load, and the like, so as to achieve a more accurate and dynamic configuration effect.

Optionally, the configuration information is carried by at least one of:

RRC dedicated signaling, system information block SIB signaling, or pre-configuration signaling.

Optionally, in the case that the first terminal is in a connected state, the configuration information is carried through RRC dedicated signaling;

and under the condition that the first terminal is in a non-connection state, the configuration information is carried through SIB signaling or pre-configuration signaling.

Specifically, for SL TX, the first terminal is in a connected state (i.e., the first terminal is a terminal in a Uu RRC connected state), and the network side device may send configuration information, such as RRC dedicated signaling, to the first terminal through RRC signaling;

When the SL TX first terminal is in the non-connected state, it is inconvenient to give a personalized configuration for it using dedicated signaling, so it is a relatively feasible way to obtain unified configuration information about the copy function between the TX and RX terminals in a common signaling (e.g. system information block SIB signaling) or pre-configured manner.

Optionally, when the first terminal is in a connection state and the transmission mode is a unicast mode, the configuration information is carried through RRC dedicated signaling;

and under the condition that the first terminal is in a non-connection state or the transmission mode is a multicast or broadcast mode, the configuration information is carried through SIB signaling or pre-configuration signaling.

Specifically, when the first terminal is in a connection state and the transmission mode is a unicast mode, the receiving end has only one two terminals, so that the personalized configuration can be given by using the special signaling, and the signaling cost and the complexity are low;

when the SL TX first terminal is in a non-connected state, it is inconvenient to give a personalized configuration to the SL TX first terminal by using dedicated signaling, or the service initiated by the TX first terminal is multicast or broadcast, because its receiving end is a large number of RX second terminals, the SL TX first terminal cannot give a personalized configuration to the SL TX first terminal by using dedicated signaling, otherwise, because the number of RX second terminals is large and there are continuously dynamic joining and leaving of the second terminals, signaling overhead and complexity are too high.

Thus, for the SL TX first terminal being in a non-connected state, or the TX first terminal initiating a multicast or broadcast service, it is a relatively feasible way to obtain unified configuration information about the copy function between the TX and RX terminals in a common signaling (e.g. system information block SIB signaling) or pre-configured manner.

For the TX terminal and the RX terminal, since the QoS configuration of the service is understood to be consistent before the service starts, and the configuration information of the service from the common signaling or the pre-configuration signaling is also required to be unified within a certain range by the deployment angle of the network side, the configuration information about the copy function obtained by the TX terminal and the RX terminal using the same QoS configuration is generally consistent, so that the TX terminal and the RX terminal can perform subsequent copy transmission based on the consistent configuration.

Alternatively, the TX terminal, which obtains configuration information of the copy function through SIB signaling, is typically a terminal in a Uu RRC IDLE or INACTIVE (INACTIVE) state;

the TX terminal that obtains the configuration information Of the copy function through the pre-configuration signaling is typically a terminal in an Out Coverage (OOC) state.

Further, for non-unicast services, such as multicast and broadcast, PC5 interface interaction is not efficient because the number of terminals on the receiving side is numerous and the terminals on the receiving side are also continuously joining and exiting. The configuration unification is achieved on the TX and RX sides by adopting a pre-configuration mode or a common signaling mode and the like, and some static or pre-configuration modes are needed for the association relation between the RLC bearer and the SL RB/PDCP so as to achieve the understanding consistency of the two ends, for example, two or more RLC bearers are configured for each SL RB with the copy function started, and/or the association between corresponding identifiers of the two RLC bearers, for example, an LCID for transmitting copy data can be reserved for each LCID in a traditional logic channel identifier (logical channel identify, LCID) interval. When the receiving terminal receives the data of the logical channels corresponding to some LCIDs, the data carried by the two RLCs with the copy starting function can be sent to a PDCP entity for unified repeated detection and re-ordering according to the association relation between the LCIDs.

TABLE 1SL-SCH LCID values

For example, in Table 1 above, 0-19 are currently determined logical channel numbers for SLs, where 0-3 is a signaling radio bearer (Signaling Radio Bearers, SRB), 4-19 is a data bearer (Data Radio Bearers, DRB), and if the DRB is considered to turn on the copy function, LCIDs of one logical channel transmitting copy data may be allocated for each DRB in a reserved interval (logical channel number 20-55 range), e.g., 4-19 corresponds to 20-35 in a one-to-one order. Thus, the transmitting and receiving ends know the unified processing of the duplicated data transmitted by the logic channels 4 and 20, and the like. Alternatively, a similar approach may be used for SRBs. As long as it is specified in advance, TX and RX are performed according to a unified or default rule.

Optionally, in the case that the first terminal is in a connected state, the first terminal receives an activation control signaling or a deactivation control signaling of the copy function sent by the network side device.

Specifically, dynamic activation/deactivation mainly controls the copy function of the transmitting end to ensure both transmission effect and system efficiency.

Optionally, when the first terminal is in a connection state and the resource scheduling mode of the first terminal is mode 1, the first terminal receives an activation control signaling or a deactivation control signaling of a copy function sent by the network side device.

Specifically, when the first terminal is in a connection state, especially in a resource scheduling mode of mode1, the network side device can dynamically activate/deactivate the copy function of the first terminal conveniently, for example, when the load of the SL link is heavy, the network side device activates the copy function of the first terminal under the condition that the load of the SL link is light.

Optionally, the activation control signaling or the deactivation control signaling is sent by at least one of: the media access layer control unit MAC CE or physical downlink control channel PDCCH.

Optionally, the activation control signaling is used to indicate at least one of:

activating a copy function of the first terminal;

activating a copy function of the target SL RB;

activating a copy function of a target RLC bearer of the SL RB;

activating a copy function of the target QoS flow;

the deactivation control signaling is used to indicate at least one of:

deactivating the copy function of the first terminal;

deactivating the copy function of the target SL RB;

deactivating the copy function of the target RLC bearer of the SL RB;

the copy function of the target QoS flow is deactivated.

Specifically, the dynamic control signaling may take a MAC CE or PDCCH, etc., and carry a function of activating or deactivating all copies of the first terminal, or activating or deactivating copies of a target SL RB (for example, a designated SL RB), or activating or deactivating a specific RLC bearer of the SL RB, and when the first terminal receives the activation or deactivation control signaling from the network side device, operate according to the activation or deactivation control signaling. For example, the first terminal may send activation control signaling or deactivation control signaling to the second terminal through PC5 signaling; if not, it means that the RX terminal needs to keep listening and receiving all the carrier groups and all the RLC bearers at all times.

In the above embodiment, the control signaling is activated or deactivated so as to dynamically control the duplication transmission of the service meeting the requirements on the SL link, so as to achieve the guarantee and improvement of the communication performance and the system performance in aspects of high QoS, system efficiency, and the like.

Optionally, the method further comprises:

the first terminal sends configuration information to the second terminal through PC5 RRC signaling.

Specifically, since the SL unicast service is one-to-one transmission and has a relatively stable PC5 connection, a PC5 RRC procedure may be adopted, and the TX terminal may send detailed configuration of the copy function to the RX terminal, so that the RX terminal may establish a corresponding transmission channel, and well associate the transmission channel with the SL RB/PDCP entity, and the RX terminal may send data from the logical channel for starting the copy function to the unified PDCP entity for repeated detection and reordering, and sequentially submit to the higher layer.

Optionally, the method further comprises:

the first terminal sends the activation control signaling or the deactivation control signaling to the second terminal through PC5 MAC CE signaling.

In the case of SL unicast, dynamic signaling, such as PC5 MAC CE, is also supported to notify activation or deactivation of the copy function, so that the RX terminal can perform better reception processing.

In the above embodiment, the first terminal may send the configuration information and/or the dynamic control signaling to the terminal on the receiving side, so that the terminal on the receiving side may perform better receiving processing.

Fig. 4 is a second flowchart of a SL replication transmission method according to an embodiment of the present disclosure. As shown in fig. 4, the SL replication transmission method of the present embodiment includes:

step 201, network side equipment sends configuration information to a first terminal; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state; the configuration information is used for SL copy transmission by the first terminal.

Optionally, the first indication information includes at least one of:

information of SL radio bearer RB for starting copy function;

information of QoS flow for opening copy function;

information of SL RB for which the copy function is not turned on;

information of QoS flows for which the copy function is not started;

a first condition for turning on the copy function.

copying the information of the transmitted logic channel;

Carrier group information corresponding to the logic channel;

the transmitted information of the main logical channel is duplicated.

configuration information of the deactivation state;

the first indication information is used for indicating whether the first terminal, SL RB or QoS flow is in an activated state or a deactivated state after the configuration information is configured;

Optionally, before the network side device sends the configuration information to the first terminal, the method further includes:

the network side equipment receives first information sent by the first terminal, wherein the first information comprises at least one of the following items: the method comprises the steps of providing service quality of service (QoS) requirement information of a first terminal, carrier Aggregation (CA) capability information of the first terminal, replication capability information of the first terminal, carrier Aggregation (CA) capability information of a second terminal, replication capability information of the second terminal and a sub-link measurement result of at least one carrier.

Optionally, the information of the logical channel includes at least one of:

The number of the logic channels and the radio links of the logic channels manage information carried by the RLC.

Optionally, the first condition includes at least one of:

Optionally, in the case that the carrier-based granularity measurement result with the second condition being the target parameter is less than or equal to a fourth threshold, the default state is the first state;

the default state is a second state when the measurement result based on the granularity of the carrier wave, which is the second condition as the target parameter, is greater than or equal to a fifth threshold;

the first state is an activated state, and the second state is a deactivated state; or, the first state is a deactivated state, and the second state is an activated state.

Optionally, the target parameter includes at least one of: channel busy rate, reference signal received power RSRP, reference signal received quality RSRQ.

and/or the number of the groups of groups,

the carrier-based granularity of the target parameter measurement being greater than or equal to a fifth threshold comprises at least one of:

Optionally, the configuration information is carried by at least one of:

and carrying the configuration information through SIB signaling or pre-configuration signaling under the condition that the first terminal is in a non-connection state.

and carrying the configuration information through SIB signaling or pre-configuration signaling under the condition that the first terminal is in a non-connection state or the transmission mode is a multicast or broadcast mode.

Optionally, the method further comprises:

The network side equipment sends an activation control signaling or a deactivation control signaling of a copy function to the first terminal, and the first terminal is in a connection state.

Optionally, the activation control signaling or deactivation control signaling is sent through at least one of: the media access layer control unit MAC CE or physical downlink control channel PDCCH.

activating a copy function of the first terminal;

activating a copy function of the target SL RB;

activating a copy function of a target RLC bearer of the SL RB;

activating a copy function of the target QoS flow;

the deactivation control signaling is used to indicate at least one of:

deactivating a copy function of the first terminal;

deactivating the copy function of the target SL RB;

deactivating the copy function of the target RLC bearer of the SL RB;

the copy function of the target QoS flow is deactivated.

The specific implementation process and technical effects of the method of the present embodiment are similar to those of the terminal side method embodiment, and specific reference may be made to the detailed description of the terminal side method embodiment, which is not repeated herein.

According to the SL replication and transmission method provided by the embodiment of the application, the execution body can be an SL replication and transmission device. In the embodiment of the present application, an example of a SL replication transmission method performed by an SL replication transmission apparatus is described as an SL replication transmission apparatus provided in the embodiment of the present application.

Fig. 5 is a schematic structural diagram of an SL replication transmission apparatus provided in the present application. As shown in fig. 5, the SL replication transmission apparatus provided in this embodiment includes:

a receiving module 110, configured to receive configuration information sent by a network side device; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state;

and the processing module 120 is used for carrying out SL copy transmission based on the configuration information.

Optionally, the first indication information includes at least one of:

information of SL radio bearer RB for starting copy function;

information of QoS flow for opening copy function;

information of SL RB for which the copy function is not turned on;

information of QoS flows for which the copy function is not started;

a first condition for turning on the copy function.

copying the information of the transmitted logic channel;

carrier group information corresponding to the logic channel;

the transmitted information of the main logical channel is duplicated.

Configuration information of the deactivation state;

Optionally, the apparatus further comprises:

the sending module is configured to send first information to the network side device, where the first information includes at least one of the following: the method comprises the steps of providing service quality of service (QoS) requirement information of a first terminal, carrier Aggregation (CA) capability information of the first terminal, replication capability information of the first terminal, carrier Aggregation (CA) capability information of a second terminal, replication capability information of the second terminal and a sub-link measurement result of at least one carrier.

Optionally, the information of the logical channel includes at least one of:

Optionally, the first condition includes at least one of:

and/or the number of the groups of groups,

Optionally, the configuration information is carried by at least one of:

Optionally, the receiving module 110 is further configured to:

and under the condition that the first terminal is in a connection state, receiving an activation control signaling or a deactivation control signaling of the copy function sent by the network side equipment.

Optionally, the resource scheduling manner of the first terminal is mode 1.

activating a copy function of the first terminal;

activating a copy function of the target SL RB;

activating a copy function of a target RLC bearer of the SL RB;

activating a copy function of the target QoS flow;

the deactivation control signaling is used to indicate at least one of:

deactivating a copy function of the first terminal;

deactivating the copy function of the target SL RB;

deactivating the copy function of the target RLC bearer of the SL RB;

the copy function of the target QoS flow is deactivated.

The apparatus of the present embodiment may be used to execute the method of any one of the foregoing terminal side method embodiments, and specific implementation procedures and technical effects of the apparatus are the same as those in the terminal side method embodiment, and specific details of the terminal side method embodiment may be referred to in the detailed description of the terminal side method embodiment and will not be repeated herein.

Fig. 6 is a second schematic structural diagram of the SL replication transmission apparatus provided in the present application. As shown in fig. 6, the SL replication transmission apparatus provided in this embodiment includes:

a sending module 210, configured to send configuration information to the first terminal; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state; the configuration information is used for SL copy transmission of the first terminal.

Optionally, the first indication information includes at least one of:

information of SL radio bearer RB for starting copy function;

information of QoS flow for opening copy function;

information of SL RB for which the copy function is not turned on;

information of QoS flows for which the copy function is not started;

a first condition for turning on the copy function.

copying the information of the transmitted logic channel;

carrier group information corresponding to the logic channel;

the transmitted information of the main logical channel is duplicated.

configuration information of the deactivation state;

Optionally, the apparatus further comprises:

the receiving module is used for receiving first information sent by the first terminal, and the first information comprises at least one of the following items: the method comprises the steps of providing service quality of service (QoS) requirement information of a first terminal, carrier Aggregation (CA) capability information of the first terminal, replication capability information of the first terminal, carrier Aggregation (CA) capability information of a second terminal, replication capability information of the second terminal and a sub-link measurement result of at least one carrier.

Optionally, the information of the logical channel includes at least one of:

Optionally, the first condition includes at least one of:

and/or the number of the groups of groups,

Optionally, the configuration information is carried by at least one of:

Optionally, the sending module is further configured to:

And sending an activation control signaling or a deactivation control signaling of the copy function to the first terminal, wherein the first terminal is in a connection state.

Optionally, the activation control signaling or deactivation control signaling is carried by at least one of: the media access layer control unit MAC CE or physical downlink control channel PDCCH.

activating a copy function of the first terminal;

activating a copy function of the target SL RB;

activating a copy function of a target RLC bearer of the SL RB;

activating a copy function of the target QoS flow;

the deactivation control signaling is used to indicate at least one of:

deactivating a copy function of the first terminal;

deactivating the copy function of the target SL RB;

deactivating the copy function of the target RLC bearer of the SL RB;

the copy function of the target QoS flow is deactivated.

The apparatus of the present embodiment may be used to execute the method of any one of the foregoing network side method embodiments, and specific implementation procedures and technical effects of the apparatus are the same as those of the network side method embodiment, and specific details of the network side method embodiment may be referred to in the detailed description of the network side method embodiment and will not be repeated herein.

The SL replication transmission apparatus in the embodiments of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.

The SL replication transmission apparatus provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 3 to fig. 4, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.

Optionally, as shown in fig. 7, the embodiment of the present application further provides a communication device 700, including a processor 701 and a memory 702, where the memory 702 stores a program or an instruction that can be executed on the processor 701, for example, when the communication device 700 is a terminal, the program or the instruction is executed by the processor 701 to implement the steps of the above-mentioned SL replication transmission method embodiment, and the same technical effects can be achieved. When the communication device 700 is a network side device, the program or the instruction, when executed by the processor 701, implements the steps of the above-described SL replication transmission method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

The embodiment of the application also provides a first terminal, which comprises a processor and a communication interface, wherein the communication interface is used for receiving configuration information sent by the network side equipment; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state; the processor is configured to perform SL replication transmission based on the configuration information. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 8 is a schematic hardware structure of a terminal for implementing an embodiment of the present application.

The terminal 1000 includes, but is not limited to: at least some of the components of the radio frequency unit 1001, the network module 1002, the audio output unit 1003, the input unit 1004, the sensor 1005, the display unit 1006, the user input unit 1007, the interface unit 1008, the memory 1009, and the processor 1010, etc.

Those skilled in the art will appreciate that terminal 1000 can also include a power source (e.g., a battery) for powering the various components, which can be logically connected to processor 1010 by a power management system so as to perform functions such as managing charge, discharge, and power consumption by the power management system. The terminal structure shown in fig. 8 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.

It should be understood that in the embodiment of the present application, the input unit 1004 may include a graphics processing unit (Graphics Processing Unit, GPU) 10041 and a microphone 10042, and the graphics processor 10041 processes image data of still pictures or videos obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 1006 may include a display panel 10061, and the display panel 10061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1007 includes at least one of a touch panel 10071 and other input devices 10072. The touch panel 10071 is also referred to as a touch screen. The touch panel 10071 can include two portions, a touch detection device and a touch controller. Other input devices 10072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.

In this embodiment, after receiving downlink data from the network side device, the radio frequency unit 1001 may transmit the downlink data to the processor 1010 for processing; in addition, the radio frequency unit 1001 may send uplink data to the network side device. In general, the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.

The memory 1009 may be used to store software programs or instructions and various data. The memory 1009 may mainly include a first storage area storing programs or instructions, which may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and a second storage area storing data. Further, the memory 1009 may include volatile memory or nonvolatile memory, or the memory 1009 may include both volatile and nonvolatile memory. Including high-speed random access Memory, and may also include non-volatile Memory, where the non-volatile Memory may be Read-Only Memory (ROM), programmable ROM (PROM), erasable Programmable ROM (EPROM), electrically Erasable Programmable EPROM (EEPROM), or flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). The memory 1009 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid-state storage device.

The processor 1010 may include one or more processing units; alternatively, the processor 1010 may integrate an application processor that primarily processes operations involving an operating system, a user interface, and applications or instructions, and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 1010.

The radio frequency unit 1001 is configured to receive configuration information sent by a network side device; the configuration information includes at least one of: the method comprises the steps of enabling a copy function based on SL radio bearer RB and/or QoS flows as first indication information related to whether the copy function is started, logic channel related information of the copy function and indication information of copy function related state;

and a processor 1010, configured to perform SL replication transmission based on the configuration information.

Optionally, the first indication information includes at least one of:

information of SL radio bearer RB for starting copy function;

information of QoS flow for opening copy function;

information of SL RB for which the copy function is not turned on;

information of QoS flows for which the copy function is not started;

A first condition for turning on the copy function.

copying the information of the transmitted logic channel;

carrier group information corresponding to the logic channel;

the transmitted information of the main logical channel is duplicated.

configuration information of the deactivation state;

Optionally, the radio frequency unit 1001 is further configured to:

transmitting first information to the network side equipment, wherein the first information comprises at least one of the following items: the method comprises the steps of providing service quality of service (QoS) requirement information of a first terminal, carrier Aggregation (CA) capability information of the first terminal, replication capability information of the first terminal, carrier Aggregation (CA) capability information of a second terminal, replication capability information of the second terminal and a sub-link measurement result of at least one carrier.

Optionally, the information of the logical channel includes at least one of:

Optionally, the first condition includes at least one of:

and/or the number of the groups of groups,

Optionally, the configuration information is carried by at least one of:

Optionally, the radio frequency unit 1001 is further configured to:

Optionally, the resource scheduling manner of the first terminal is mode 1.

activating a copy function of the first terminal;

activating a copy function of the target SL RB;

activating a copy function of a target RLC bearer of the SL RB;

activating a copy function of the target QoS flow;

the deactivation control signaling is used to indicate at least one of:

deactivating a copy function of the first terminal;

deactivating the copy function of the target SL RB;

deactivating the copy function of the target RLC bearer of the SL RB;

the copy function of the target QoS flow is deactivated.

The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for sending configuration information to the first terminal; the configuration information includes at least one of: the method comprises the steps of enabling a copying function based on SL radio bearer and/or QoS flow as granularity of first indication information related to whether the copying function is started, logic channel related information of the copying function and indication information of copying function related state; the configuration information is used for SL copy transmission of the first terminal. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.

Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 9, the network side device 800 includes: an antenna 81, a radio frequency device 82, a baseband device 83, a processor 85 and a memory 85.

The antenna 81 is connected to a radio frequency device 82.

In the uplink direction, the radio frequency device 82 receives information via the antenna 81, and transmits the received information to the baseband device 83 for processing.

In the downlink direction, the baseband device 83 processes information to be transmitted, and transmits the processed information to the radio frequency device 82, and the radio frequency device 82 processes the received information and transmits the processed information through the antenna 81.

The above-mentioned band processing means may be located in the baseband means 83, and the method performed by the access network device in the above embodiment may be implemented in the baseband means 83, which baseband means 83 comprises a baseband processor 85 and a memory 85.

The baseband device 83 may, for example, include at least one baseband board, where a plurality of chips are disposed, as shown in fig. 9, where one chip, for example, a baseband processor 85, is connected to the memory 85 through a bus interface, so as to call a program in the memory 85, and perform the operation of the access network device shown in the foregoing method embodiment.

The network side device 800 may further include a network interface 86 for interacting with the radio frequency apparatus 82, such as a common public radio interface (common public radio interface, CPRI for short).

Specifically, the network side device 800 implemented in the present application further includes: instructions or programs stored in the memory 85 and executable on the processor 85, the processor 85 invokes the instructions or programs in the memory 85 to perform the method performed by the module shown in fig. 6, and achieve the same technical effects, so that repetition is avoided and will not be described here.

The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the above-mentioned SL replication and transmission method embodiment are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.

The embodiment of the application further provides a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction, implement each process of the above SL replication and transmission method embodiment, and achieve the same technical effect, so that repetition is avoided, and no further description is given here.

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

The embodiments of the present application further provide a computer program/program product, where the computer program/program product is stored in a storage medium, and the computer program/program product is executed by at least one processor to implement each process of the above-mentioned SL replication transmission method embodiment, and achieve the same technical effects, so that repetition is avoided, and details are not repeated herein.

The embodiment of the application also provides a communication system, which comprises: the first terminal can be used for executing the steps of the SL duplication transmission method, and the network side equipment can be used for executing the steps of the SL duplication transmission method.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method described in the embodiments of the present application.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A method for link SL replication and transmission, comprising:

the method comprises the steps that a first terminal receives configuration information sent by network side equipment; the configuration information includes at least one of: the method comprises the steps of enabling a copy function based on SL radio bearer RB and/or quality of service QoS flows to be first indication information related to whether the copy function is started, logic channel related information of the copy function and indication information of copy function related states;

2. The SL replication transmission method according to claim 1,

the first indication information includes at least one of:

information of SL radio bearer RB for starting copy function;

information of QoS flow for opening copy function;

information of SL RB for which the copy function is not turned on;

information of QoS flows for which the copy function is not started;

a first condition for turning on the copy function.

3. The SL replication transmission method according to claim 1,

the information related to the logical channel of the copy function includes at least one of:

copying the information of the transmitted logic channel;

carrier group information corresponding to the logic channel;

the transmitted information of the main logical channel is duplicated.

4. The SL replication transmission method according to claim 1,

the indication information of the copy function related status includes at least one of:

configuration information of the deactivation state;

5. The SL replication transmission method according to any one of claims 1 to 4, wherein before the first terminal receives the configuration information sent by the network side device, the first terminal further comprises:

the first terminal sends first information to the network side equipment, wherein the first information comprises at least one of the following items: the method comprises the steps of providing service quality of service (QoS) requirement information of a first terminal, carrier Aggregation (CA) capability information of the first terminal, replication capability information of the first terminal, carrier Aggregation (CA) capability information of a second terminal, replication capability information of the second terminal and a sub-link measurement result of at least one carrier.

6. A SL replication transmission method according to claim 3, wherein the information of the logical channels comprises at least one of:

7. A SL replication transmission method according to claim 3, wherein the number of carrier groups is greater than or equal to the number of logical channels.

8. The SL replication and transmission method of claim 4 wherein,

the configuration information of the deactivation state includes at least one of:

9. The SL replication transmission method of claim 2, wherein the first condition comprises at least one of:

10. The SL replication and transmission method of claim 4 wherein,

the default state is a first state when the measurement result based on the granularity of the carrier wave, which is the second condition as the target parameter, is smaller than or equal to a fourth threshold;

11. The SL replication transmission method according to claim 10,

the target parameters include at least one of: channel busy rate, reference signal received power RSRP, reference signal received quality RSRQ.

12. The SL replication transmission method according to claim 10,

the carrier-based granularity of the target parameter measurement less than or equal to a fourth threshold comprises at least one of:

And/or the number of the groups of groups,

13. The SL replication transmission method according to any one of claims 1 to 4,

the configuration information is carried by at least one of:

14. The SL replication transmission method according to claim 13,

when the first terminal is in a connection state and the transmission mode is a unicast mode, the configuration information is carried through RRC dedicated signaling;

15. The SL replication transmission method according to claim 13,

the configuration information is carried through RRC dedicated signaling under the condition that the first terminal is in a connected state;

16. The SL replication transmission method according to any one of claims 1 to 4, further comprising:

and under the condition that the first terminal is in a connection state, the first terminal receives the activation control signaling or deactivation control signaling of the copy function sent by the network side equipment.

17. The SL replication transmission method according to claim 16, wherein,

the resource scheduling mode of the first terminal is mode 1.

18. The SL replication transmission method of claim 16, wherein the activation control signaling or the deactivation control signaling is transmitted through at least one of: the media access layer control unit MAC CE or physical downlink control channel PDCCH.

19. The SL replication transmission method according to claim 16, wherein,

the activation control signaling is used to indicate at least one of:

activating a copy function of the first terminal;

activating a copy function of the target SL RB;

activating a copy function of a target RLC bearer of the SL RB;

activating a copy function of the target QoS flow;

the deactivation control signaling is used to indicate at least one of:

deactivating a copy function of the first terminal;

deactivating the copy function of the target SL RB;

deactivating the copy function of the target RLC bearer of the SL RB;

the copy function of the target QoS flow is deactivated.

20. A method for link SL replication and transmission, comprising:

21. The SL replication transmission method of claim 20,

The first indication information includes at least one of:

information of SL radio bearer RB for starting copy function;

information of QoS flow for opening copy function;

information of SL RB for which the copy function is not turned on;

information of QoS flows for which the copy function is not started;

a first condition for turning on the copy function.

22. The SL replication transmission method of claim 20,

copying the information of the transmitted logic channel;

carrier group information corresponding to the logic channel;

the transmitted information of the main logical channel is duplicated.

23. The SL replication transmission method of claim 20,

configuration information of the deactivation state;

24. The SL replication transmission method according to any one of claims 20 to 23, wherein before the network side device transmits the configuration information to the first terminal, further comprising:

25. The SL replication transmission method of claim 22, wherein the information of the logical channel comprises at least one of:

26. The SL replication transmission method of claim 22, wherein the number of carrier groups is greater than or equal to the number of logical channels.

27. The SL replication transmission method according to claim 23, wherein,

28. The SL replication transmission method of claim 21, wherein the first condition comprises at least one of:

29. The SL replication transmission method according to claim 23, wherein,

30. The SL replication transmission method of claim 29,

31. The SL replication transmission method of claim 29,

and/or the number of the groups of groups,

32. A SL replication transmission method according to any of claims 20 to 23,

the configuration information is carried by at least one of:

33. The SL replication transmission method of claim 32,

34. The SL replication transmission method of claim 32,

35. A SL replication transmission method according to any of claims 20-23, wherein said method further comprises:

36. The SL replication transmission method of claim 35, wherein the activation control signaling or the deactivation control signaling is transmitted through at least one of: the media access layer control unit MAC CE or physical downlink control channel PDCCH.

37. The SL replication transmission method of claim 35,

the activation control signaling is used to indicate at least one of:

activating a copy function of the first terminal;

activating a copy function of the target SL RB;

activating a copy function of a target RLC bearer of the SL RB;

activating a copy function of the target QoS flow;

the deactivation control signaling is used to indicate at least one of:

deactivating a copy function of the first terminal;

deactivating the copy function of the target SL RB;

deactivating the copy function of the target RLC bearer of the SL RB;

the copy function of the target QoS flow is deactivated.

38. A SL replication transmission apparatus, comprising:

39. A SL replication transmission apparatus, comprising:

40. A first terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the SL replication transmission method according to any of claims 1 to 19.

41. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the SL replication transmission method according to any of claims 20 to 37.

42. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the SL replication transmission method according to any of claims 1 to 19, or the steps of the SL replication transmission method according to any of claims 20 to 37.