CN116209070A

CN116209070A - SL service transmission processing method, device, terminal and storage medium

Info

Publication number: CN116209070A
Application number: CN202111433605.6A
Authority: CN
Inventors: 郑倩; 鲍炜
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2023-06-02
Also published as: WO2023093717A1

Abstract

The application discloses a SL service transmission processing method, a device, a terminal and a storage medium, and belongs to the technical field of communication. The SL service transmission processing method of the embodiment of the application comprises the following steps: the terminal determines at least one carrier according to the transmission information corresponding to the SL service; the terminal determines candidate carriers according to available carriers in the at least one carrier; the at least one carrier comprises a first carrier and/or a second carrier, wherein the first carrier is an SL carrier of an unlicensed frequency band, and the second carrier is an SL carrier of an licensed frequency band.

Description

SL service transmission processing method, device, terminal and storage medium

Technical Field

The application belongs to the technical field of communication, and particularly relates to a method, a device, a terminal and a storage medium for processing SL service transmission.

Background

With the development of communication technology, the introduction of unlicensed band communication is discussed in a Side Link (SL) system. After introducing unlicensed band communication, there may be a variety of different communication scenarios, such as unlicensed band carrier alone, and a communication scenario where unlicensed band carrier and licensed band coexist. After introducing unlicensed band communication, how to select candidate carriers becomes a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a SL service transmission processing method, a device, a terminal and a storage medium, which can determine the selection of candidate carriers after introducing unlicensed frequency band communication, so that the terminal communicates on a proper carrier.

In a first aspect, a method for processing SL service transmission is provided, including:

the terminal determines at least one carrier according to the transmission information corresponding to the SL service;

the terminal determines candidate carriers according to available carriers in the at least one carrier;

the at least one carrier comprises a first carrier and/or a second carrier, wherein the first carrier is an SL carrier of an unlicensed frequency band, and the second carrier is an SL carrier of an licensed frequency band.

In a second aspect, there is provided an SL service transmission processing apparatus, including:

the first determining module is used for determining at least one carrier according to the transmission information corresponding to the SL service;

a second determining module, configured to determine a candidate carrier according to an available carrier in the at least one carrier;

In a third aspect, there is provided a terminal comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction when executed by the processor implementing the steps of the method according to the first aspect.

In a fourth aspect, a terminal is provided, comprising a processor and a communication interface, wherein,

the processor is used for determining at least one carrier according to the transmission information corresponding to the SL service; determining candidate carriers according to available carriers in the at least one carrier; the at least one carrier comprises a first carrier and/or a second carrier, wherein the first carrier is an SL carrier of an unlicensed frequency band, and the second carrier is an SL carrier of an licensed frequency band.

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

In a sixth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement the steps of the method according to the first aspect.

In a seventh aspect, a computer program/program product is provided, stored in a non-transitory storage medium, the computer program/program product being executed by at least one processor to implement the method according to the first aspect.

According to the embodiment of the application, at least one carrier wave is determined through the terminal according to the transmission information corresponding to the SL service; the terminal determines candidate carriers according to available carriers in the at least one carrier; the at least one carrier comprises a first carrier and/or a second carrier, wherein the first carrier is an SL carrier of an unlicensed frequency band, and the second carrier is an SL carrier of an licensed frequency band. In this way, the beam selection mechanism of the SL carrier for the unlicensed band and the SL carrier for the licensed band is defined, so that the terminal can communicate on a proper carrier, and the communication performance is ensured.

Drawings

FIG. 1 is a block diagram of a network system to which embodiments of the present application are applicable;

fig. 2 is a flowchart of a SL service transmission processing method according to an embodiment of the present application;

fig. 3 is a block diagram of an SL service transmission processing apparatus according to an embodiment of the present application;

fig. 4 is a block diagram of a communication device according to an embodiment of the present application;

Fig. 5 is a block diagram of a terminal 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 Radio (NR) system for purposes of example, and in much of the description that follows, NR terminology is used, these techniques may also be applied to applications other than NR system applications, such as the 6th generation (6th 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 Computer, 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 (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 furniture), and the like, and the Wearable Device includes: intelligent watches, intelligent bracelets, intelligent headphones, intelligent glasses, intelligent jewelry (intelligent bracelets, intelligent rings, intelligent necklaces, intelligent bracelets, intelligent footchains, etc.), intelligent bracelets, intelligent clothing, game machines, 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 be a base station or a core network device, where the base station may be referred to as a node B, an evolved node B, 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 node B, an evolved node B (eNB), a home node B, a home evolved node B, a WLAN access point, a WiFi node, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the field, and the base station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only a base station in the NR system is taken as an example, but the specific type of the base station is not limited thereto.

For ease of understanding, some of the matters related to the embodiments of the present application are described below:

1. SL introduction to

The LTE system supports SL and is used for directly transmitting data between terminals without network side equipment. The SL link interface may also be referred to as a PC5 interface.

The design of the LTE sidelink is suitable for specific public safety matters (such as emergency communication in disaster places like fire places or earthquakes) or Internet of vehicles (vehicle to everything, V2X) communication and the like. The internet of vehicles communication includes various services such as basic security type communication, advanced (automatic) driving, formation, and sensor expansion, etc. Since LTE sidelink 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 by NR sidelink.

The 5G NR system can be used for the working frequency band which is not supported by LTE and is above 6GHz, supports larger working bandwidth, and can support transmission forms of multicast (multicast) and unicast (unicast) besides broadcasting (broadcasting) in the current NR sidelink transmission. Unicast, as the name implies, is a one-to-one (one to one) transmission. Multicasting is a one-to-many (one-to-many) transmission. Broadcast is also a transmission of one to the management, but broadcast does not have the concept that UEs belong to the same group.

Compared to LTE/NR sip broadcast communication, NR sip unicast and multicast communication introduction supports a physical layer hybrid automatic repeat request (Hybrid Automatic Repeat reQuest, HARQ) feedback mechanism.

2. Resource allocation pattern

The resource allocation patterns of the Sidelink UE are classified into two types in total:

1. base station scheduling Mode (Mode 1): the base station schedules SL resources for the UEs for SL transmission, controlled by network side equipment (base station) and allocates resources for each UE.

2. Terminal autonomous Mode (Mode 2): the terminal determines that the base station does not schedule the SL resources configured by the base station/network side device or the SL transmission resources within the pre-configured SL resources, and each terminal autonomously selects the resources.

3. Unlicensed band NR

In future communication systems, unlicensed bands (Unlicensed bands) may be used as supplements to Licensed bands (Licensed bands) to help operators expand services. To keep pace with NR deployment and maximize as much as possible unlicensed access based on NR, unlicensed bands may operate in the 5GHz,37GHz and 60GHz bands. Since unlicensed bands are shared by multiple radio Access technologies (radio Access technology, RAT), such as WiFi, radar, LTE-assisted Access (LTE-LAA), etc., unlicensed bands must be compliant in certain countries or regions when used to ensure that all devices can use the resources fairly, such as listen before talk (Listen Before Talk, LBT), maximum channel occupancy time (Maximum Channel Occupancy Time, MCOT), etc. rules.

4. LBT

A transmitting end working in an unlicensed frequency band needs to monitor whether the frequency band (which can be identified by a central frequency point+bandwidth) is occupied before transmitting signals, and if not, the transmitting end can transmit signals in the frequency band.

The SL service transmission processing 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.

Referring to fig. 2, fig. 2 is a flowchart of a SL service transmission processing method according to an embodiment of the present application, and as shown in fig. 2, the method includes the following steps:

step 201, the terminal determines at least one carrier according to the transmission information corresponding to the SL service;

in this embodiment of the present application, the above SL service may be understood as a service to be transmitted, for example, an upper layer of a UE has an SL service reached, and the upper layer provides transmission information corresponding to the SL service, so that at least one carrier may be determined according to the transmission information provided by the upper layer. Wherein the upper layers may be referred to as upper layers, e.g., the access layer (Access Stratum layer) is collectively referred to above as upper layers.

It should be appreciated that the above SL traffic may be understood as a new SL traffic, and may also be understood as a retransmitted SL traffic.

Step 202, the terminal determines candidate carriers according to available carriers in the at least one carrier;

In this embodiment of the present application, the unlicensed band may be understood as unlicensed spectrum, and may also be referred to as a shared band. Short-range wireless transmission frequency bands similar to wifi. The first carrier may also or alternatively include an intelligent transportation band (Intelligent transportation spectrum).

Optionally, in some embodiments, the transmission information includes at least one of a carrier list and a transmission mode.

In this embodiment of the present application, the carrier list may include at least one carrier frequency point, and the transmission mode may be understood or replaced by a transmission type or a transmission format. Wherein the transmission mode may include at least one of a licensed band side link transmission and an unlicensed band side link transmission.

Optionally, the transmission mode satisfies at least one of:

different transmission modes are carried by a transmission configuration (TX profile) provided by an upper layer of the terminal;

different transmission modes are associated with at least one carrier frequency point;

the different transmission modes are associated with at least one traffic type;

the different transmission modes are associated with at least one application identity;

the different transmission modes are associated with at least one Destination layer two identification (Destination L2 ID);

the different transmission modes are associated with at least one set of quality of service parameters.

In this application, association between different transmission modes and at least one carrier frequency point may be understood as including at least one of the following association relationships:

a transmission mode is associated with a frequency point carrier;

A transmission mode is associated with at least two frequency point carriers;

at least two transmission modes are associated with one frequency point carrier.

In addition, the association relationship between the transmission mode and the service type, the application identifier, the destination layer two identifier and the service quality parameter is similar to the association relationship between the transmission mode and the carrier frequency point, and the description of the association relationship between the transmission mode and the carrier frequency point may be referred to specifically, and will not be repeated here.

It should be understood that the service type or application identity is an upper layer concept, and SL services are distinguished by different service types (service types) or application identities (application identifier) at the upper layer. The Destination layer two identification is the concept of an access layer, and SL services are characterized by different Destination L2 IDs in the access layer. The quality of service parameters may include QoS parameters for one or more dimensions such as latency, reliability, and priority. In other words, the quality of service parameter may be a QoS parameter of a certain dimension, or may be a QoS parameter combination of multiple dimensions.

It should be noted that the above-mentioned available carriers may be some or all of at least one carrier, and for example, the available carriers may include at least one of the following: n1 first carriers and N2 second carriers. The corresponding ways of determining the candidate carriers are different in different scenarios, which will be described in detail below.

In some embodiments, in a case where the available carriers are N1 first carriers, the determining, by the terminal, candidate carriers according to available carriers in the at least one carrier includes:

the terminal determines a target threshold;

the terminal determines a first carrier with the channel occupation time being greater than or equal to the target threshold value in the N1 first carriers as a candidate carrier;

wherein N1 is a positive integer.

Optionally, in the embodiment of the present application, the determining, by the terminal, the target threshold includes:

the terminal acquires at least one channel occupation time threshold (COT_Thres), wherein each channel occupation time threshold corresponds to at least one SL logic channel priority value;

and the terminal determines a channel occupation time threshold corresponding to the SL logic channel priority value of a target logic channel as the target threshold, wherein the target logic channel is determined by the SL logic channel corresponding to the SL service.

It should be appreciated that the at least one channel occupancy time threshold may be configured or preconfigured for the control node, and may comprise different thresholds of 2ms and 8ms, for example. The larger the SL logical channel priority value, the higher the corresponding priority, or the smaller the SL logical channel priority value, the lower the corresponding priority. The control node may be a network side device or a terminal, which is not limited herein.

Optionally, in some embodiments, in a case where the available carriers are N1 first carriers, the determining, by the terminal, candidate carriers according to available carriers in the at least one carrier includes:

the terminal determines a target threshold;

the terminal determines a first carrier with the Listen Before Talk (LBT) success rate larger than or equal to the target threshold value from the N1 first carriers as a candidate carrier;

wherein N1 is a positive integer.

It should be appreciated that the calculation of the LBT success rate is defined as (number of successful LBTs divided by the total number of LBTs); further, a calculated time window may also be defined, for example back to within 1s of the past from the current time; or from the first LBT to the current time, etc

the terminal acquires at least one LBT threshold value, and each LBT threshold value corresponds to at least one SL logic channel priority value;

and the terminal determines an LBT threshold value corresponding to the SL logic channel priority value of a target logic channel as the target threshold value, wherein the target logic channel is determined by the SL logic channel corresponding to the SL service.

It should be noted that, in some embodiments, the target logical channel satisfies any one of the following:

The target logical channel is the SL logical channel with the highest SL logical channel priority among all SL logical channels corresponding to the SL service;

the target logical channel is a SL logical channel with the highest SL logical channel priority among M SL logical channels, where M is a positive integer, and the M SL logical channels are all SL logical channels corresponding to the SL service and are only SL logical channels used for unlicensed frequency bands.

It should be understood that in the embodiment of the present application, the target logical channel is the SL logical channel with the highest SL logical channel priority among all the SL logical channels corresponding to the SL service may be understood as: the determination of the target logical channel is not determined based on the SL logical channel restriction information. The target logical channel is the SL logical channel with the highest SL logical channel priority among the M SL logical channels, which may be understood as: the determination of the target logical channel is determined based on SL logical channel restriction information. The SL logical channel restriction information may be configured or preconfigured by the control node.

Further, in some embodiments, the method further comprises:

the terminal determines a type of SL logical channels based on target configuration information configured or preconfigured by the control node, the type of SL logical channels including at least one of SL logical channels only for unlicensed bands and SL logical channels only for licensed bands.

Wherein, only for the unlicensed band may be denoted as SL-U only, and only for the licensed band may be denoted as SL only.

Optionally, in some embodiments, the available carrier is a carrier of SL resources included in the control node configuration or pre-configuration of the at least one carrier.

In this embodiment of the present application, a part or all of at least one first carrier is included in a configured or preconfigured SL resource, and then the included part or all of the first carriers are determined as at least one available first carrier, i.e. N1 first carriers. And if part or all of the at least one second carrier is contained in the configured or preconfigured SL resources, determining the contained part or all of the second carriers as at least one available second carrier, namely N2 second carriers.

Optionally, in the case that the available carriers include N1 first carriers and N2 second carriers, the determining, by the terminal, candidate carriers according to the available carriers in the at least one carrier includes at least one of:

under the condition that the terminal does not support the simultaneous operation of the first carrier and the second carrier, the terminal determines the candidate carrier according to a preset rule;

The terminal supports the first carrier wave and the second carrier wave to work simultaneously, and the terminal determines the N1 first carrier waves and the N2 second carrier waves as candidate carrier waves;

wherein N1 and N2 are both positive integers.

In this embodiment, whether the terminal supports or does not support the simultaneous operation of the first carrier and the second carrier may be understood as whether the capability of the terminal supports the simultaneous operation of the first carrier and the second carrier, or whether the control node determines whether to support the simultaneous operation of the first carrier and the second carrier according to a communication scenario, or whether the control node indicates that the terminal supports the simultaneous operation of the first carrier and the second carrier.

It should be appreciated that in the case where the available carriers include only N2 second carriers, the candidate carriers may be determined with reference to the related art, and will not be described herein.

Optionally, in some embodiments, the preset rules include at least one of:

rule 1, determining to select candidate carriers based on the N1 first carriers or the N2 second carriers according to indication information sent by a control node;

rule 2, under the condition that the protocol agrees with the priority first carrier or the second carrier, determining to select a candidate carrier based on a target object, wherein the target object is the N1 first carriers under the condition of the priority first carrier, and the target object is the N2 second carriers under the condition of the priority second carrier;

Rule 3, determining to select a candidate carrier based on the N2 second carriers when the measurement results of all the N1 first carriers do not satisfy the first measurement condition;

rule 4, determining to select a candidate carrier based on the N1 first carriers when the priority of the first logical channel in the SL logical channels corresponding to the SL service is higher than or equal to the priority of the second logical channel in the SL logical channels corresponding to the SL service;

rule 5, determining to select a candidate carrier based on the N1 first carriers when the measurement result of the first target carrier is greater than or equal to a first preset value and the measurement result of the second target carrier is less than or equal to a second preset value, otherwise determining to select a candidate carrier based on the N2 second carriers;

rule 6, determining to select a candidate carrier based on the N1 first carriers when the measurement results of all the N2 second carriers do not satisfy the second measurement condition;

rule 7, determining to select a candidate carrier based on the N2 second carriers when the priority of the first logical channel in the SL logical channels corresponding to the SL service is higher than or equal to the priority of the second logical channel in the SL logical channels corresponding to the SL service;

Rule 8, selecting candidate carriers based on the N2 second carriers when the measurement result of the first target carrier is smaller than or equal to a third preset value and the measurement result of the second target carrier is larger than or equal to a fourth preset value, otherwise selecting candidate carriers based on the N1 first carriers;

the first target carrier is the carrier with the best measurement result in the N1 first carriers, the second target carrier is the carrier with the best measurement result in the N2 second carriers, the first logical channel is the logical channel with the highest priority in all logical channels only used in the unlicensed band, and the second logical channel is the logical channel with the highest priority in all logical channels only used in the licensed band.

In embodiments of the present application, the measurements generally include measurements in one or more dimensions, which may include, for example, channel busy ratio (Channel Busy Rate, CBR) and sidelink reference signal received power (Sidelink Reference Signal Received Power, SL-RSRP). Wherein, the measurement result is best understood as the measurement result of a certain dimension is best, for example, the smaller the value of CBR, the better; for SL-RSRP, the larger the value of SL-RSRP, the better.

For rule 1, if the indication information indicates a first carrier, N1 first carriers may be included in the candidate carriers. If the indication information indicates the second carrier, N2 second carriers may be included in the candidate carriers

For rule 2, it may be understood that always the target object takes precedence, e.g. if the protocol specifies first carriers, then N1 first carriers may be included in the candidate carriers; the protocol specifies that the second carriers take precedence, then N1 second carriers may be included in the candidate carriers.

Alternatively, in the case where the rule 4 and the rule 7 exist at the same time, for the case where the priority of the first logical channel in the SL logical channel corresponding to the SL service is equal to the priority of the second logical channel in the SL logical channel corresponding to the SL service, the candidate carriers may be selected based on the N1 first carriers, or may be selected based on the N2 second carriers. I.e. the case where only one rule of rules 4 and 7 remains equal.

The above-described rules 1 to 8 merely illustrate whether the candidate carrier is preferentially selected based on the first carrier determination or the second carrier selection. Further, after determining to select the candidate carrier based on the first carrier or the second carrier, further, a manner for specifically selecting the candidate carrier may be set according to actual needs. For example, in some embodiments, the preset rules further include at least one of:

If the candidate carriers are selected based on the N1 first carriers, determining that the first carrier with the measurement result meeting the first measurement condition is the candidate carrier when the measurement result of at least one first carrier in the N1 first carriers meets the first measurement condition;

and if the candidate carriers are selected based on the N2 second carriers, determining that the second carrier with the measurement result meeting the second measurement condition is the candidate carrier when the measurement result of at least one second carrier in the N2 first carriers meets the second measurement condition.

In this embodiment of the present application, the first measurement condition may be understood that a measurement result of the first carrier is greater than or less than a certain preset threshold, and the second measurement condition may be understood that a measurement result of the second carrier is greater than or less than a certain preset threshold. Specifically, the magnitude of the preset threshold may be set according to practical situations, which is not limited herein. Since the first carrier satisfying the first measurement condition or the second carrier satisfying the second measurement condition is selected as the candidate carrier, the reliability of transmission can be improved.

Optionally, in a case that the terminal supports the first carrier and the second carrier to operate simultaneously, and the first resource authorized on the first carrier overlaps the second resource authorized on the second carrier in a time domain, the transmission behavior of the terminal satisfies any one of the following:

The first resource priority or the second resource priority;

determining the first resource priority or the second resource priority based on the SL logical channel priority of the at least one third logical channel and the SL logical channel priority of the at least one fourth logical channel;

wherein the at least one third logical channel comprises a SL logical channel which is used only for an unlicensed frequency band in the SL service; the at least one fourth logical channel comprises a SL logical channel of the SL traffic and used only for licensed bands.

Optionally, determining the first resource priority or the second resource priority based on the SL logical channel priority of the at least one third logical channel and the SL logical channel priority of the at least one fourth logical channel includes at least one of:

the first resource priority in case that the highest SL logical channel priority of the at least one third logical channel is higher than or equal to the highest SL logical channel priority of the at least one fourth logical channel;

the second resource prioritizes in case the highest SL logical channel priority of the at least one fourth logical channel is higher than or equal to the highest SL logical channel priority of the at least one third logical channel.

Alternatively, the highest SL logical channel priority of the at least one fourth logical channel may be the first resource priority or the second resource priority, where the highest SL logical channel priority of the at least one fourth logical channel is equal to the highest SL logical channel priority of the at least one third logical channel. That is, when the above two items are simultaneously included, determining the first resource priority or the second resource priority based on the SL logical channel priority of the at least one third logical channel and the SL logical channel priority of the at least one fourth logical channel includes:

the second resource prioritizes in case the highest SL logical channel priority of the at least one fourth logical channel is higher than the highest SL logical channel priority of the at least one third logical channel.

Alternatively, determining the first resource priority or the second resource priority based on the SL logical channel priority of the at least one third logical channel and the SL logical channel priority of the at least one fourth logical channel comprises:

The first resource priority in case the highest SL logical channel priority of the at least one third logical channel is higher than the highest SL logical channel priority of the at least one fourth logical channel;

Optionally, the transmission behavior of the terminal further satisfies at least one of:

in the case of the first resource prioritizing, performing a first operation comprising at least one of: selecting the at least one third logical channel to perform a logical channel priority (Logical channel priority, LCP) procedure; discarding the second resource;

in the case of the second resource prioritizing, performing a second operation comprising at least one of: and selecting the at least one fourth logic channel to execute a logic channel priority LCP flow, and discarding the first resource.

In this embodiment, selecting the at least one third logical channel to perform the LCP procedure may be understood as: selecting at least one third logical channel multiplex to transmit SL media access control (Media Access Control, MAC) protocol data units (Protocol Data Unit, PDUs); the selection of the at least one third logical channel to perform the LCP flow may be understood as: at least one fourth logical channel multiplex is selected to transmit the SL MAC PDU.

Optionally, in some embodiments, if the resource allocation mode of the terminal is a terminal autonomous selection mode, the transmission behavior of the terminal further satisfies:

triggering a first resource reselection under the condition that the first resource is discarded;

and triggering second resource reselection under the condition that the second resource is discarded.

In the embodiment of the present application, after discarding the corresponding resource, the corresponding resource reselection is triggered again, so that the reliability of transmission can be improved.

For a better understanding of the present application, the following detailed description of some specific examples is provided.

Embodiment one: a multi-carrier scenario with only at least one first carrier.

And step 1, the upper layer of the UE has SL service arrival, and the upper layer provides transmission information corresponding to the SL service. The transmission information includes at least one of:

a carrier list comprising at least one carrier frequency point;

the transmission mode may also be referred to as a transmission type or a transmission format.

Wherein the transmission mode includes at least one of a side link transmission of an licensed band (also referred to as a SL-U mode) and a side link transmission of an unlicensed band (also referred to as a SL mode).

Optionally, the different transmission modes satisfy at least one of:

the different transmission modes are associated with at least one traffic type;

the different transmission modes are associated with at least one destination layer two identifier;

Step 2: if it is determined that "at least one first carrier" is determined according to the transmission information of step 1, and a part or all of the "at least one first carrier" is included in the SL resource configured or preconfigured by the base station, the included part or all of the first carriers are determined as "available at least one first carrier".

Alternatively, the terminal may determine the candidate carriers according to at least one of the following rules:

rule a: in combination with A-1 and A-2, the UE determines a unique COT_Thres (k). If the COT of a carrier in the "available at least one first carrier" is greater than or equal to COT_Thres (k), the corresponding carrier is included in the candidate carriers.

A-1: the UE obtains one or more cot_thres (1, 2,3,..k,..n) configured or preconfigured by the base station, wherein each cot_thres (k) is associated with one or more SL logical channel Priority values (1, 2,3,..j,..8).

A-2: the UE determines the highest SL logical channel priority value among them, including one of the following methods:

taking the highest priority value from all SL logic channels corresponding to the SL service;

the UE acquires SL logic channel restriction information configured or preconfigured by the base station, and selects a logic channel in which the SL logic channel is restricted to be 'SL-U only' according to all SL logic channels corresponding to the SL service, and takes the highest priority value. In a specific example, assuming that the logical channels in which the SL logical channel is limited to "SL-U only" are selected first at this time to be 0, this means that "at least one first carrier available" cannot be a candidate carrier.

Rule B: in combination with B-1, B-2 and B-3, the UE determines a unique LBT_Thres (k). If the LBT measurement result of a certain carrier of the "available at least one first carrier" is greater than or equal to lbt_thres (k), the corresponding carrier is included in the candidate carriers.

B-1: the UE obtains one or more lbt_thres (1, 2,3,..k,..n) configured or preconfigured by the base station, wherein each lbt_thres (k) is associated with one or more SL logical channel Priority values (1, 2,3,..j,..8).

B-2: calculation of LBT success rate is defined as (number of successful LBTs divided by total LBT number); further, a calculated time window may also be defined, for example back to within 1s of the past from the current time; or from the first LBT to the current time, etc.

B-3: the UE determines the highest SL logical channel priority value among them, including one of the following methods:

Embodiment two: there is a multi-carrier scenario where at least one first carrier and at least one second carrier coexist.

a carrier list comprising at least one carrier frequency point;

Optionally, the different transmission modes satisfy at least one of:

the different transmission modes are associated with at least one traffic type;

Step 2: if "at least one first carrier and at least one second carrier" are determined from the transmission information of step 1, the following is the case:

case 1: if only the condition is satisfied: if part or all of the "at least one first carrier" is included in the SL resource configured or preconfigured by the base station, the included part or all of the first carriers are determined to be "available at least one first carrier", and the determination manner of the candidate carriers may refer to the above embodiment one, which is not repeated again.

Case 2: if only the condition is satisfied: if part or all of the "at least one second carrier" is included in the SL resource configured or preconfigured by the base station, the included part or all of the second carriers are determined to be "available at least one second carrier", and at this time, the determination manner of the candidate carriers may refer to the existing correlation mechanism, which is not described again.

Case 3: if two conditions are satisfied: part or all of the "at least one first carrier" is included in the SL resources configured or preconfigured by the base station, and part or all of the "at least one second carrier" is included in the SL resources configured or preconfigured by the base station, and the included part or all of the first carriers and the second carriers are determined as "available at least one first carrier and at least one second carrier".

For case 3, assuming that the first carrier and the second carrier within the terminal are not allowed to operate simultaneously, then determining candidate carriers according to at least one of the following rules is continued:

rule C: the control node configuration or pre-configuration indicates operation in the SL-U mode or in the SL mode. If the SL-U mode is indicated, then "at least one first carrier" may be included in the candidate carriers; if the SL mode is indicated, then "at least one second carrier" may be included in the candidate carriers.

Rule D: always preferred either the first carrier or the second carrier. If a priority first carrier is specified, then "at least one first carrier" may be included with the candidate carriers; if a priority second carrier is specified, then "at least one second carrier" may be included with the candidate carriers.

Rule E: prioritizing the first carrier under conditions including at least one of:

rule E-1: if a certain first carrier measurement in the "available at least one first carrier" meets a threshold condition (usage rule a or B), then the respective carrier is included in the candidate carriers; only if all first carrier measurements in the "available at least one first carrier" do not meet the threshold condition (using rule a or B), the "available at least one second carrier" is included in the candidate carriers;

rule E-2: the UE acquires SL logic channel limit information configured or preconfigured by the base station, determines that when the highest priority of all logic channels in the SL service to be transmitted is higher than or equal to the highest priority of all logic channels in the SL service to be transmitted, according to the logic channel limit information, the 'at least one first carrier' can be included in the candidate carrier.

Rule E-3: selecting a carrier 1 with the best measurement result in the available at least one SL-U carrier and a carrier 2 with the best measurement result in the available at least one second carrier; when the measurement result of the carrier 1 is greater than the preset threshold 1 and the carrier 2 is less than the preset threshold 2, the first carrier is prioritized; otherwise, the second carrier is prioritized.

Rule F: prioritizing the second carrier under conditions including at least one of:

rule F-1: if a certain second carrier measurement in the "available at least one second carrier" meets a threshold condition (existing measurement quantity, e.g. CBR, SL-RSRP), the respective carrier is included in the candidate carriers; only if all second carrier measurements in the "available at least one second carrier" do not meet the threshold condition (using rule a or B), the "at least one first carrier" is included in the candidate carriers;

rule F-2: the UE acquires SL logic channel limit information configured or preconfigured by the base station, determines that when the highest priority of all logic channels in the SL service to be transmitted is limited to be 'SL only' is higher than or equal to the highest priority of all logic channels in the SL service to be transmitted, the 'at least one second carrier' can be included in the candidate carrier

Rule F-3: selecting a carrier 1 with the best measurement result in the available at least one first carrier and a carrier 2 with the best measurement result in the available at least one second carrier; when the measurement result of the carrier 1 is smaller than the preset threshold 1 and the carrier 2 is larger than the preset threshold 2, the second carrier is prioritized; otherwise, the first carrier is prioritized.

For case 3, assuming that the first carrier and the second carrier in the UE can work simultaneously, a solution mechanism of SL-U and SL resource conflict and a SL MAC PDU transmission priority mechanism are defined, including at least one of the following:

rule G: the grant resources of the first carrier (hereinafter referred to as first resources) or the grant resources of the second carrier (hereinafter referred to as second resources) are always prioritized.

Rule G-1: always prioritizing a first resource and using it for at least one logical channel associated with a "SL-U type" to multiplex a transmitted SL MAC PDU, discarding said second resource, triggering a SL mode 2 resource reselection if the UE is operating in SL mode 2.

Rule G-2: the second resource is always prioritized and used for multiplexing the transmitted SL MAC PDUs for at least one logical channel associated with the "SL type", said first resource being discarded.

Rule H: and comparing at least one logic channel priority associated with the SL-U type in the to-be-transmitted SL service with at least one logic channel priority associated with the SL type, and determining the transmission behavior based on the comparison result.

Rule H-1: if the highest priority in at least one logic channel associated with the 'SL-U type' in the to-be-transmitted SL service is higher than or equal to the highest priority in at least one logic channel associated with the 'SL type' in the to-be-transmitted SL service, prioritizing a first resource, and multiplexing the transmitted SL MAC PDU for the at least one logic channel associated with the 'SL-U type', and discarding the second resource; if the UE is operating in SL mode 2, a resource reselection is triggered.

Rule H-2, if the highest priority in at least one logic channel associated with the SL type in the waiting SL service is higher than or equal to the highest priority in at least one logic channel associated with the SL-U type in the waiting SL service, prioritizing the second resource and using the second resource for multiplexing the transmitted SL MAC PDU of at least one logic channel associated with the SL type, and discarding the first resource; if the UE is operating in SL mode 2, a resource reselection is triggered.

Alternatively, the at least one logical channel associated with the "SL-U type" may be understood as a logical channel associated with an unlicensed band, or may be understood as a logical channel only for an unlicensed band; the at least one logical channel associated with the "SL type" may be understood as a logical channel associated with the licensed band, or as a logical channel only for the licensed band.

It should be noted that, in the SL service transmission processing method provided in the embodiment of the present application, the execution body may be an SL service transmission processing device, or a control module in the SL service transmission processing device for executing the SL service transmission processing method. In the embodiment of the present application, the SL service transmission processing device provided in the embodiment of the present application is described by taking an example of a method for executing SL service transmission processing by the SL service transmission processing device.

Referring to fig. 3, fig. 3 is a block diagram of an SL service transmission processing apparatus according to an embodiment of the present application, and as shown in fig. 3, an SL service transmission processing apparatus 300 includes:

a first determining module 301, configured to determine at least one carrier according to transmission information corresponding to the SL service;

a second determining module 302, configured to determine a candidate carrier according to an available carrier in the at least one carrier;

Optionally, the transmission information includes at least one of a carrier list and a transmission mode.

Optionally, the transmission mode includes at least one of a side link transmission mode of an unlicensed band and a side link transmission mode of an licensed band.

Optionally, the transmission mode satisfies at least one of:

different transmission modes are carried by a transmission configuration provided by an upper layer of the terminal;

the different transmission modes are associated with at least one traffic type;

Optionally, in the case that the available carriers are N1 first carriers, the second determining module 302 is specifically configured to:

determining a target threshold;

determining a first carrier with channel occupation time greater than or equal to the target threshold value in the N1 first carriers as a candidate carrier;

wherein N1 is a positive integer.

Optionally, the second determining module 302 is specifically configured to:

acquiring at least one channel occupation time threshold, wherein each channel occupation time threshold corresponds to at least one SL logic channel priority value;

and determining a channel occupation time threshold corresponding to the SL logic channel priority value of a target logic channel as the target threshold, wherein the target logic channel is determined by the SL logic channel corresponding to the SL service.

Optionally, in the case that the available carriers are N1 first carriers, the second determining module is specifically configured to:

determining a target threshold;

determining a first carrier with the Listen Before Talk (LBT) success rate larger than or equal to the target threshold value from the N1 first carriers as a candidate carrier;

Wherein N1 is a positive integer.

Optionally, the second determining module 302 is specifically configured to:

acquiring at least one LBT threshold value, wherein each LBT threshold value corresponds to at least one SL logic channel priority value;

and determining an LBT threshold corresponding to the SL logic channel priority value of a target logic channel as the target threshold, wherein the target logic channel is determined by the SL logic channel corresponding to the SL service.

Optionally, the target logical channel satisfies any one of the following:

Optionally, the second determining module 302 is further configured to: the type of the SL logical channel is determined based on the control node configured or preconfigured target configuration information, and the type of the SL logical channel includes at least one of an SL logical channel only for an unlicensed band and an SL logical channel only for an licensed band.

Optionally, the available carrier is a carrier of SL resources included in the control node configuration or pre-configuration among the at least one carrier.

Optionally, in the case that the available carriers include N1 first carriers and N2 second carriers, the second determining module 302 is specifically configured to perform at least one of the following:

under the condition that the terminal does not support the simultaneous operation of the first carrier and the second carrier, determining the candidate carrier according to a preset rule;

the terminal supports the first carrier wave and the second carrier wave to work simultaneously, and the N1 first carrier waves and the N2 second carrier waves are determined to be candidate carrier waves;

wherein N1 and N2 are both positive integers.

Optionally, the preset rule includes at least one of:

determining to select candidate carriers based on the N1 first carriers or the N2 second carriers according to the indication information sent by the control node;

under the condition that a protocol agrees with a priority first carrier or a second carrier, determining to select candidate carriers based on a target object, wherein the target object is the N1 first carriers under the condition of the priority first carrier, and the target object is the N2 second carriers under the condition of the priority second carrier;

Determining to select a candidate carrier based on the N2 second carriers in a case where the measurement results of all of the N1 first carriers do not satisfy a first measurement condition;

determining to select candidate carriers based on the N1 first carriers when the priority of a first logical channel in the SL logical channels corresponding to the SL service is higher than or equal to the priority of a second logical channel in the SL logical channels corresponding to the SL service;

determining to select candidate carriers based on the N1 first carriers when the measurement result of the first target carrier is greater than or equal to a first preset value and the measurement result of the second target carrier is less than or equal to a second preset value, otherwise determining to select candidate carriers based on the N2 second carriers;

determining to select a candidate carrier based on the N1 first carriers in the case where the measurement results of all the N2 second carriers do not satisfy the second measurement condition;

determining to select a candidate carrier based on the N2 second carriers when the priority of a first logical channel in the SL logical channels corresponding to the SL service is higher than or equal to the priority of a second logical channel in the SL logical channels corresponding to the SL service;

Selecting candidate carriers based on the N2 second carriers when the measurement result of the first target carrier is smaller than or equal to a third preset value and the measurement result of the second target carrier is larger than or equal to a fourth preset value, otherwise selecting candidate carriers based on the N1 first carriers;

Optionally, the preset rule further includes at least one of the following:

the first resource priority or the second resource priority;

in the case of the first resource prioritizing, performing a first operation comprising at least one of: selecting the at least one third logical channel to perform a logical channel priority LCP procedure; discarding the second resource;

Optionally, if the resource allocation mode of the terminal is a terminal autonomous selection mode, the transmission behavior of the terminal further satisfies:

The SL service transmission processing apparatus provided in the embodiment of the present application may implement each process in the method embodiment of fig. 2, and in order to avoid repetition, a description is omitted here.

The SL service transmission processing device in the embodiment of the present application may be a device, a device with an operating system, or an electronic device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile terminal or a non-mobile terminal. By way of example, mobile terminals may include, but are not limited to, the types of terminals 11 listed above, and non-mobile terminals may be servers, network attached storage (Network Attached Storage, NAS), personal computers (personal computer, PCs), televisions (TVs), teller machines, self-service machines, etc., and embodiments of the present application are not limited in detail.

Optionally, as shown in fig. 4, the embodiment of the present application further provides a communication device 400, including a processor 401, a memory 402, and a program or an instruction stored in the memory 402 and capable of running on the processor 401, where the program or the instruction is executed by the processor 401 to implement each process of the above-mentioned SL service transmission processing method embodiment, and the process may achieve the same technical effect, which is not described herein again.

The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for: determining at least one carrier according to transmission information corresponding to SL service; determining candidate carriers according to available carriers in the at least one carrier; the at least one carrier comprises a first carrier and/or a second carrier, wherein the first carrier is an SL carrier of an unlicensed frequency band, and the second carrier is an SL carrier of an licensed frequency band. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment are applicable to the terminal embodiment and can achieve the same technical effects. Specifically, fig. 5 is a schematic hardware structure of a terminal for implementing embodiments of the present application.

The terminal 500 includes, but is not limited to: at least some of the components of the radio frequency unit 501, the network module 502, the audio output unit 503, the input unit 504, the sensor 505, the display unit 506, the user input unit 507, the interface unit 508, the memory 509, and the processor 510.

Those skilled in the art will appreciate that the terminal 500 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 510 via a power management system so as to perform functions such as managing charging, discharging, and power consumption via the power management system. The terminal structure shown in fig. 5 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 appreciated that in embodiments of the present application, the input unit 504 may include a graphics processor (Graphics Processing Unit, GPU) and a microphone, the graphics processor processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 506 may include a display panel, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 507 includes a touch panel and other input devices. Touch panels, also known as touch screens. The touch panel may include two parts, a touch detection device and a touch controller. Other input devices 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 a network side device, the radio frequency unit 501 processes the downlink data with the processor 510; in addition, the uplink data is sent to the network side equipment. Typically, the radio frequency unit 501 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 509 may be used to store software programs or instructions as well as various data. The memory 109 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area 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 the like. In addition, the Memory 509 may include a high-speed random access Memory, and may further include a non-transitory Memory, wherein the non-transitory Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid-state storage device.

Processor 510 may include one or more processing units; alternatively, the processor 510 may integrate an application processor that primarily processes operating systems, user interfaces, and applications or instructions, etc., with a modem processor that primarily processes wireless communications, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 510.

Wherein the processor 510 is configured to: determining at least one carrier according to transmission information corresponding to SL service; determining candidate carriers according to available carriers in the at least one carrier; the at least one carrier comprises a first carrier and/or a second carrier, wherein the first carrier is an SL carrier of an unlicensed frequency band, and the second carrier is an SL carrier of an licensed frequency band.

The terminal provided in this embodiment of the present application can implement each process in the embodiment of the SL service transmission processing method shown in fig. 2, and in order to avoid repetition, a description is omitted 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 embodiment of the SL service transmission processing method are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no detailed description is given here.

Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.

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 embodiment of the SL service transmission processing method, 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, chip systems, or system-on-chip chips, etc.

The embodiments of the present application further provide a program product stored in a non-transitory storage medium, where the program product is executed by at least one processor to implement each process of the above-mentioned SL service transmission processing method embodiment, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.

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 base station, 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 processing a side link SL service transmission, comprising:

2. The method of claim 1, wherein the transmission information comprises at least one of a carrier list and a transmission mode.

3. The method of claim 2, wherein the transmission mode comprises at least one of an unlicensed band side link transmission mode and an licensed band side link transmission mode.

4. The method of claim 2, wherein the transmission mode satisfies at least one of:

the different transmission modes are associated with at least one traffic type;

5. The method of claim 1, wherein, in the case where the available carriers are N1 first carriers, the determining, by the terminal, candidate carriers from available carriers in the at least one carrier comprises:

the terminal determines a target threshold;

wherein N1 is a positive integer.

6. The method of claim 5, wherein the determining, by the terminal, the target threshold comprises:

the terminal acquires at least one channel occupation time threshold value, and each channel occupation time threshold value corresponds to at least one SL logic channel priority value;

7. The method of claim 1, wherein, in the case where the available carriers are N1 first carriers, the determining, by the terminal, candidate carriers from available carriers in the at least one carrier comprises:

the terminal determines a target threshold;

wherein N1 is a positive integer.

8. The method of claim 7, wherein the determining, by the terminal, the target threshold comprises:

9. The method according to claim 6 or 8, wherein the target logical channel satisfies any one of the following:

10. The method according to claim 9, wherein the method further comprises:

11. The method according to claim 1, characterized in that the available carrier is a carrier of the at least one carrier that is comprised in SL resources configured or preconfigured by a control node.

12. The method of claim 1, wherein, in the case where the available carriers include N1 first carriers and N2 second carriers, the terminal determining candidate carriers from available carriers of the at least one carrier comprises at least one of:

wherein N1 and N2 are both positive integers.

13. The method of claim 12, wherein the preset rules include at least one of:

14. The method of claim 13, wherein the preset rules further comprise at least one of:

15. The method of claim 12, wherein the transmission behavior of the terminal satisfies any one of the following in the case where the terminal supports simultaneous operation of the first carrier and the second carrier, and where the first resource granted on the first carrier overlaps with the second resource granted on the second carrier in the time domain:

the first resource priority or the second resource priority;

16. The method of claim 15, wherein determining the first resource priority or the second resource priority based on the SL logical channel priority of the at least one third logical channel and the SL logical channel priority of the at least one fourth logical channel comprises at least one of:

17. The method of claim 15, wherein the transmission behavior of the terminal further satisfies at least one of:

18. The method of claim 17, wherein if the resource allocation mode of the terminal is a terminal autonomous selection mode, the transmission behavior of the terminal further satisfies:

19. A side link SL traffic transmission processing apparatus, comprising:

20. The apparatus of claim 19, wherein the transmission information comprises at least one of a carrier list and a transmission mode.

21. The apparatus of claim 20, wherein the transmission mode satisfies at least one of:

the different transmission modes are associated with at least one traffic type;

the different transmission modes are associated with at least one quality of service parameter.

22. The apparatus of claim 19, wherein, in the case where the available carriers are N1 first carriers, the second determining module is specifically configured to: determining a target threshold; determining a first carrier with channel occupation time greater than or equal to the target threshold value in the N1 first carriers as a candidate carrier; wherein N1 is a positive integer.

23. The apparatus of claim 19, wherein, in the case where the available carriers are N1 first carriers, the second determining module is specifically configured to: determining a target threshold; determining a first carrier with the Listen Before Talk (LBT) success rate larger than or equal to the target threshold value from the N1 first carriers as a candidate carrier; wherein N1 is a positive integer.

24. A terminal, comprising: memory, a processor and a program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the SL traffic transmission processing method according to any of claims 1 to 18.

25. A readable storage medium, wherein a program or instructions are stored on the readable storage medium, which program or instructions, when executed by a processor, implement the steps of the SL traffic transmission processing method according to any one of claims 1 to 18.