WO2024067734A1

WO2024067734A1 - Transmission resource determination method and apparatus, ue and readable storage medium

Info

Publication number: WO2024067734A1
Application number: PCT/CN2023/122191
Authority: WO
Inventors: 王欢; 纪子超
Original assignee: 维沃移动通信有限公司
Priority date: 2022-09-30
Filing date: 2023-09-27
Publication date: 2024-04-04
Also published as: CN117835401A

Abstract

The present application belongs to the technical field of communications. Disclosed in the present application are a transmission resource determination method and apparatus, a UE and a readable storage medium. The transmission resource determination method in the embodiments of the present application comprises: a first UE selecting a transmission resource according to a first mode, and/or reserving a transmission resource according to a second mode, the first mode comprising at least one of the following: the first UE selecting N first transmission resources according to a first rule, N being a positive integer; the first UE triggering resource reselection when a first condition is satisfied and LBT fails; and when detecting that a second UE has an SL resource reservation behavior, the first UE, according to resource reservation information and a first preset transmission power, determining a second transmission resource which can be used for SL delay transmission; and the second mode comprising at least one of the following: when a second condition is satisfied, the first UE releasing the reserved transmission resource; and the first UE reserving a transmission resource according to a preset threshold of the number of transmission resources to be reserved.

Description

Method, device, UE and readable storage medium for determining transmission resources

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202211216274.5 filed in China on September 30, 2022, the entire contents of which are incorporated herein by reference.

Technical Field

The present application belongs to the field of communication technology, and specifically relates to a method, device, UE and readable storage medium for determining transmission resources.

Background technique

With the development of communication technology, user equipment UE can transmit data on unlicensed spectrum using the resources selected by UE. Before transmitting data, UE needs to listen before talk (LBT). If LBT fails, UE cannot transmit on the selected resources, and UE needs to reselect resources and reserve resources.

This results in too many unused resources being reserved, thereby causing a waste of reserved resources and a decrease in spectrum utilization.

Summary of the invention

The embodiments of the present application provide a method, device, UE and readable storage medium for determining transmission resources, which can solve the problem of reserving too many unused resources, thereby causing waste of reserved resources and reduced spectrum utilization.

In the first aspect, a method for determining transmission resources is provided, the method comprising: a first UE selects transmission resources according to a first method, and/or reserves transmission resources according to a second method; wherein the above-mentioned first method comprises at least one of the following: the first UE selects N first transmission resources according to a first rule, N being a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE detects that the second UE has SL resource reservation behavior, the first UE determines the second transmission resource that can be used for SL delayed transmission according to the resource reservation information and the first predetermined transmission power; the above-mentioned second method comprises at least one of the following: the first UE releases the reserved transmission resources when the second condition is met; the first UE reserves transmission resources according to the predetermined reserved transmission resource number threshold.

In a second aspect, a device for determining transmission resources is provided, and the device includes: a processing module, which is used for a first UE to select transmission resources according to a first method, and/or to reserve transmission resources according to a second method; wherein the above-mentioned first method includes at least one of the following: the first UE selects N first transmission resources according to a first rule, and N is a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE detects that the second UE has SL resource reservation behavior, the second transmission resource that can be used for SL delayed transmission is determined according to the resource reservation information and the first predetermined transmission power; the above-mentioned second method includes at least one of the following: the first UE releases the reserved transmission resources when the second condition is met; the first UE reserves transmission resources according to the predetermined reserved transmission resource number threshold.

In a third aspect, a UE is provided, which includes a processor and a memory, wherein the memory stores a program or instruction that can be executed on the processor, and when the program or instruction is executed by the processor, the steps of the method described in the first aspect are implemented.

In a fourth aspect, a UE is provided, which is a first UE, including a processor and a communication interface, wherein the processor is used to select transmission resources according to a first method, and/or reserve transmission resources according to a second method; wherein the above-mentioned first method includes at least one of the following: the first UE selects N first transmission resources according to a first rule, and N is a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE detects that the second UE has SL resource reservation behavior, the first UE determines the second transmission resource that can be used for SL delayed transmission according to the resource reservation information and the first predetermined transmission power; the above-mentioned second method includes at least one of the following: the first UE releases the reserved transmission resources when the second condition is met; the first UE reserves transmission resources according to the predetermined reserved transmission resource number threshold.

In a fifth aspect, a communication system is provided, including: a UE and a network side device, wherein the UE can be used to execute the steps of the method for determining transmission resources as described in the first aspect.

In a sixth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

In a seventh aspect, a chip is provided, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect.

In an eighth aspect, a computer program/program product is provided, wherein 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 the steps of the method for determining transmission resources as described in the first aspect.

In an embodiment of the present application, the first UE selects transmission resources according to a first method, and/or reserves transmission resources according to a second method; wherein the first method includes at least one of the following: the first UE selects N first transmission resources according to a first rule, where N is a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE detects that the second UE has SL resource reservation behavior, the second transmission resource that can be used for SL delayed transmission is determined according to the resource reservation information and the first predetermined transmission power; the second method includes at least one of the following: the first UE releases the reserved transmission resources when the second condition is met; the first UE reserves transmission resources according to a predetermined reserved transmission resource number threshold. In this way, the UE can select transmission resources according to the first method, and reserve transmission resources according to the second method, thereby avoiding excessive resource reselection, releasing redundant reserved transmission resources, and thus improving the utilization of transmission resources and the reliability of using transmission resources to transmit data.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a possible schematic diagram of the structure of a communication system involved in an embodiment of the present invention;

FIG2 is a schematic diagram of a flow chart of a method for determining transmission resources provided in an embodiment of the present application;

FIG3 is a schematic diagram of a structure of a transmission resource determination device according to an embodiment of the present application;

FIG4 is a second structural diagram of a transmission resource determination device provided in an embodiment of the present application;

FIG5 is a schematic diagram of the hardware structure of a communication device provided in an embodiment of the present application;

FIG6 is a schematic diagram of the hardware structure of a terminal provided in an embodiment of the present application.

Detailed ways

The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of this application.

The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and/or" in the specification and claims represents at least one of the connected objects, and the character "/" generally represents that the objects associated with each other are in an "or" relationship.

It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE)/LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) and other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the above-mentioned systems and radio technologies as well as for other systems and radio technologies. The following description describes a new radio (NR) system for example purposes, and NR terms are used in most of the following descriptions, but these technologies can also be applied to applications other than NR system applications, such as the ^6th Generation (6G) communication system.

FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application. The wireless communication system includes a terminal 11 and a network side device 12. The terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital assistant (Personal Digital Assistant, PDA), a handheld computer, a netbook, an ultra-mobile personal computer (ultra-mobile personal computer, UMPC), a mobile Internet device (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/virtual reality (virtual reality, VR) device, a robot, a wearable device (Wearable Device), a vehicle-mounted device (VUE), a pedestrian terminal (PUE), a smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines or furniture, etc.), a game console, a personal computer (personal computer, PC), a teller machine or a self-service machine and other terminal side devices, and the wearable device includes: a smart watch, a smart bracelet, a smart headset, a smart glasses, a smart jewelry (smart bracelet, a smart bracelet, a smart ring, a smart necklace, a smart anklet, a smart anklet, etc.), a smart wristband, a smart clothing Etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network side device 12 may include 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 (RAN), a radio access network function or a radio access network unit. The access network device 12 may include a base station, a WLAN access point or a WiFi node, etc. The base station may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home B node, a home evolved B node, a transmitting and receiving point (TRP) or some other suitable term in the field, as long as the same technical effect is achieved, the base station is not limited to a specific technical vocabulary, it should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

The following is an illustrative explanation of the technical terms involved in the technical solutions provided in the embodiments of the present application.

(1) Sidelink (SL) resource allocation method

In the related art, there are two ways of New Radio (NR) SL resource allocation, one is based on base station scheduling (mode 1), and the other is based on UE autonomous resource selection (mode 2). For the resource allocation method of base station scheduling, the sidelink resources used by the UE for data transmission are determined by the base station and notified to the downlink UE through downlink signaling; for the resource allocation method of UE autonomous selection, the UE selects available transmission resources from the (pre)configured resource pool. Before selecting resources, the UE first performs channel monitoring, selects a resource set with less interference based on the channel monitoring results, and then randomly selects resources for transmission from the resource set.

For mode 2, the specific working method is as follows:

1) After the downlink UE resource selection is triggered, the physical (PHY) layer first determines the resource selection window. The lower boundary of the resource selection window is T1 time after the resource selection is triggered, and the upper boundary of the resource selection is T2 time after the trigger. Among them, T1 is the value selected by the UE implementation method within the range of [T1_min, T1_max], and T2 is the value selected by the UE implementation method within the packet delay budget (PDB) of its TB transmission. T2 is no earlier than T1.

2) Before the UE selects resources, the PHY layer needs to determine the candidate resource set for resource selection, where the number of candidate resource sub-channels is determined by the medium access control (MAC) layer. The UE compares the estimated reference signal received power (RSRP) measurement value on the resources in the resource selection window (for example, estimated by monitoring the physical sidelink control channel (PSCCH)/physical sidelink shared channel (PSSCH)) with the corresponding RSRP threshold value (threshold). If the RSRP of the current transmission resource is higher than the RSRP threshold, the resource is excluded and cannot be included in the candidate resource set. After resource exclusion, the remaining resources in the resource selection window constitute the candidate resource set. The proportion of resources in the candidate resource set to the resources in the resource selection window must be no less than x%. If it is less than x%, the RSRP threshold needs to be increased according to the step value (3dB), and then the resource exclusion operation is performed until no less than the above x% of resources can be selected. In addition, the above RSRP comparison is compared with the priority of the TB to be transmitted It is related to the priority value of demodulation on PSCCH, and the specific process is not repeated here.

3) After the candidate resource set is determined, the PHY layer reports the candidate resource set to the MAC layer, and the MAC layer randomly selects transmission resources from the candidate resource set. The number of selected resources is determined according to the decision of the MAC layer.

(2) Sidelink technologies in unlicensed spectrum

For SL-U (sidelink in unlicensed spectrum), it is necessary to obtain the channel through LBT (Listen Before Talk) before sending SL data. The following is a brief introduction to LBT technology:

In future communication systems, shared spectrum such as unlicensed bands can be used as a supplement to licensed bands to help operators expand services. In order to be consistent with NR deployment and maximize NR-based unlicensed access, unlicensed bands can operate in 5GHz, 37GHz and 60GHz bands. Since unlicensed bands are shared by multiple technologies (RATs), such as WiFi, radar, LTE-LAA, etc., in some countries or regions, unlicensed bands must comply with regulations when used to ensure that all devices can use the resource fairly, such as LBT, maximum channel occupancy time (MCOT) and other rules. When a transmission node needs to send information, it needs to do LBT first, and perform energy detection (ED) on the surrounding nodes. When the detected power is lower than a threshold, the channel is considered to be idle and the transmission node can send. Otherwise, the channel is considered to be busy and the transmission node cannot send. The transmission node can be a base station, UE, WiFi AP, etc. After the transmission node starts transmitting, the occupied channel time COT cannot exceed MCOT. In addition, according to the occupied channel bandwidth (OCB) regulation, in the unlicensed frequency band, the transmission node must occupy at least 70% (60 GHz) or 80% (5 GHz) of the bandwidth of the entire frequency band during each transmission.

The types of LBT commonly used in NRU can be divided into Type1, Type2A, Type2B and Type2C. Type1 LBT is a channel listening mechanism based on back-off. When the transmitting node senses that the channel is busy, it backs off and continues to listen until it senses that the channel is empty. Type2C is that the sending node does not perform LBT, that is, no LBT or immediate transmission. Type2A and Type2B LBT are one-shot LBT, that is, the node performs LBT once before transmission, and transmits if the channel is empty, and does not transmit if the channel is busy. The difference is that Type2A performs LBT within 25us, which is applicable when the gap between two transmissions is greater than or equal to 25us when the COT is shared. Type2B performs LBT within 16us, which is applicable when the gap between two transmissions is equal to 16us when the COT is shared. In addition, there is Type 2 LBT, which is applicable to LAA/eLAA/FeLAA. When sharing COT, the gap between two transmissions is greater than or equal to 25us, and eNB and UE can use Type 2 LBT. In addition, in frequency range 2-2, the types of LBT are Type 1, Type 2 and Type 3. Type 1 is a channel listening mechanism based on fallback, Type 2 is one-shot LBT, and 5us LBT is performed within 8us, and Type 3 does not perform LBT.

In the related art, before a UE can use the selected resources for transmission on the unlicensed spectrum, the UE needs to perform LBT. If LBT failure occurs, the UE cannot transmit on the selected resources, and the UE needs to reselect resources and reserve resources, resulting in a waste of reserved resources. In order to improve the success rate of transmission, the UE may select and reserve more resources, or trigger resource reselection when LBT failure occurs. This will result in too many unused resources being reserved, thus causing a waste of reserved resources and a decrease in spectrum utilization. This application proposes a method for reducing the number of unused resources reserved by UE, which can solve the interference/spectrum utilization problem caused by excessive UE resource reservation.

In the transmission resource determination method, device, UE and readable storage medium provided in the embodiments of the present application, the first UE selects transmission resources according to the first method, and/or reserves transmission resources according to the second method; wherein the first method includes at least one of the following: the first UE selects N first transmission resources according to the first rule, N is a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE monitors that the second UE has SL resource reservation behavior, the second transmission resource that can be used for SL delayed transmission is determined according to the resource reservation information and the first predetermined transmission power; the second method includes at least one of the following: the first UE releases the reserved transmission resources when the second condition is met; the first UE reserves transmission resources according to the predetermined reserved transmission resource number threshold. In this way, the UE can select transmission resources according to the first method and reserve transmission resources according to the second method, thereby avoiding excessive resource reselection and releasing redundant reserved transmission resources, thereby improving the utilization of transmission resources and the reliability of using transmission resources to transmit data.

Exemplarily, the technical solution provided in the embodiments of the present application can be applied to unlicensed spectrum scenarios or other scenarios.

In combination with the accompanying drawings, the following describes in detail the transmission resource determination method, device, UE and readable storage medium provided in the embodiments of the present application through some embodiments and their application scenarios.

FIG. 2 shows a schematic flow chart of a method for determining transmission resources provided in an embodiment of the present application. As shown in FIG. 2 , the resource configuration method may include the following step 201:

Step 201: A first UE selects transmission resources according to a first method and/or reserves transmission resources according to a second method.

In the embodiment of the present application, the first method includes at least one of the following:

Mode A: The first UE selects N first transmission resources according to the first rule, where N is a positive integer;

Mode B: When the first condition is met and LBT fails, the first UE triggers resource reselection;

Method C: When the first UE detects that the second UE has made SL resource reservation behavior, the first UE determines a second transmission resource that can be used for SL delayed transmission based on the resource reservation information and the first predetermined transmission power.

In the embodiment of the present application, the second method includes at least one of the following:

Mode D: The first UE releases the reserved transmission resources when the second condition is met;

Mode F: The first UE reserves transmission resources according to a predetermined reserved transmission resource number threshold.

In a possible embodiment, the first UE may select a transmission resource in a first manner and then reserve the transmission resource.

In a possible embodiment, the first UE may reserve the transmission resource in the second manner after selecting the transmission resource.

In a possible embodiment, the first UE may select transmission resources in a first manner and then reserve transmission resources in a second manner.

Optionally, in the embodiment of the present application, for the above-mentioned method A, the above-mentioned first rule includes any one of the following:

Rule 1: When the third condition is not met, the N first transmission resources meet the fourth condition;

Rule 2: When the third condition is met, the N first transmission resources do not need to meet the fourth condition, that is, the N first transmission resources may meet the fourth condition, or the N first transmission resources do not meet the fourth condition.

Exemplarily, the number of times LBT is performed on the first transmission resource is less than or equal to a preset number.

Exemplarily, the above-mentioned preset number of times may be predefined or agreed upon by a protocol or configured or preconfigured on the network side.

Exemplarily, the third condition includes at least one of the following:

The Quality of Service (QoS) parameters of the SL data to be transmitted meet the preset QoS requirements;

The transmission resources selected by the first UE are located within the channel occupancy time (Channel Occupancy Time, COT) of the first UE or the COT shared by other UEs.

Exemplarily, the above-mentioned other UE may be other UE except the first UE.

Exemplarily, the preset QoS requirement may be that the priority of the current transmission data needs to be greater than a target threshold value.

Exemplarily, the target threshold value may be predefined or agreed upon by a protocol or configured or preconfigured on the network side.

Exemplarily, the fourth condition includes any of the following:

The time interval between the current moment and the resource selection moment of the first transmission resource is greater than or equal to the first preset interval;

The time interval between the resource selection moments of the above-mentioned N first transmission resources is greater than or equal to the second preset interval.

Exemplarily, the first preset interval may be predefined or agreed upon by a protocol or configured or preconfigured on the network side.

Exemplarily, the second preset interval may be predefined or agreed upon by a protocol or configured or preconfigured on the network side.

It should be noted that the first UE has a certain probability of performing type 2 LBT, so even if the first condition mentioned above is not met, the first UE still has a probability of performing SL transmission.

Exemplarily, if the QoS parameters of the SL data to be transmitted meet the preset QoS requirements, the first UE can dynamically reduce the time of type-1 LBT so as to complete the LBT before reserving resources.

Optionally, in an embodiment of the present application, for the above-mentioned method B, when the first UE detects that LBT fails, resource reselection can be triggered when the first condition is met.

Exemplarily, the first condition includes at least one of the following:

The QoS parameters of the SL data to be transmitted meet the preset QoS requirements,

The network congestion level is less than a first preset threshold,

The number of LBT failures exceeds the second preset threshold,

The accumulated time of LBT failure exceeds the third preset threshold;

The window length of the contention window when the first UE performs LBT exceeds the first threshold.

It is worth noting that resource reselection is triggered only when the window length of the contention window when the first UE performs LBT exceeds the first threshold.

Exemplarily, the above congestion level can be measured by parameters such as channel busy rate (Channel Busy Ratio, CBR), LBT backoff duration, etc.

Exemplarily, the first preset threshold may be predefined or agreed upon by a protocol or configured or preconfigured on the network side.

Exemplarily, the second preset threshold may be predefined or agreed upon by a protocol or configured or preconfigured on the network side.

Exemplarily, the third preset threshold may be predefined or agreed upon by a protocol or configured or preconfigured on the network side.

Exemplarily, the first threshold may be predefined or agreed upon by a protocol or configured or preconfigured on the network side.

In this way, by limiting the conditions for triggering reselection due to LBT failure, the problem of reselecting transmission resources due to LBT failure, thereby reserving too many transmission resources, is avoided.

Optionally, in an embodiment of the present application, for the above-mentioned method C, when the first UE detects that the second UE has SL resource reservation behavior, the first UE can perform SL delayed transmission based on the selected transmission resources.

Exemplarily, the above resource reservation information is resource reservation information for reserving the second resource for the second UE.

Exemplarily, the first predetermined transmission power is predefined or agreed upon by protocol or configured or preconfigured on the network side or determined according to ED (Energy Detection Threshold), for example, the first predetermined transmission power is equal to EDT or is proportional to EDT.

Exemplarily, the second transmission resource may be used for SL delayed transmission or for conventional SL transmission.

Exemplarily, when the first UE detects that the total transmission power on the third transmission resource is greater than or equal to the first predetermined transmission power, the first UE performs SL delayed transmission on the second transmission resource under the fifth condition.

Exemplarily, the third transmission resource is a reserved transmission resource of the second UE, and the third transmission resource overlaps with the second transmission resource.

Exemplarily, the fifth condition mentioned above at least includes: the first UE succeeds in LBT before SL delayed transmission.

That is to say, when the first UE detects that the total transmission power on the above-mentioned third transmission resource is greater than or equal to the first predetermined transmission power, the above-mentioned second transmission resource can be used for SL delayed transmission.

It should be noted that the relative concept of the above-mentioned delayed transmission is: if a certain transmission has a cyclic prefix extension (CPE), the transmission without CPE in the same time unit is delayed relative to the transmission with CPE; in the same slot, the transmission starting from the second symbol is delayed relative to the transmission starting from the first symbol.

Optionally, in the embodiment of the present application, for the above-mentioned method D, the above-mentioned second condition includes at least one of the following:

The time interval between the current time and the reserved transmission resource is greater than the LBT duration requirement;

The reserved transmission resources are not in the COT of the first UE or in the COT shared by other UEs.

Exemplarily, the above-mentioned release of reserved transmission resources may include: after the first UE completes the transmission of the first transmission block TB, or after occupying the first channel to transmit the first TB, the first UE releases the transmission resources reserved for the transmission of the first TB.

Optionally, in an embodiment of the present application, for the above-mentioned method F, the above-mentioned first UE can reserve transmission resources according to a predetermined reserved transmission resource number threshold that is preset or agreed upon by the protocol or configured by the network side.

For example, within a unit time or time window, the total number of transmission resources that the first UE can reserve, the total COT time, etc. has an upper limit, or the number of times a specific type of LBT is performed has an upper limit.

Exemplarily, if the number of transmission resources reserved by the first UE has reached the above-mentioned predetermined reserved transmission resource number threshold, then if the number of reserved transmission resources does not decrease, the first UE will no longer reserve new transmission resources.

Exemplarily, when reserving the selected transmission resource, the UE sends indication information to indicate that there is uncertainty or delay in the transmission on the reserved transmission resource.

In this way, by ensuring that the number of reserved transmission resources does not exceed a predetermined threshold, over-reservation of transmission resources can be avoided.

Optionally, in the embodiment of the present application, the process of step 201 "the first UE selects a transmission resource in a first manner" includes the following steps 201a:

Step 201a: The first UE selects N first transmission resources from M candidate resource subsets.

Exemplarily, each candidate resource subset in the above-mentioned M candidate subsets corresponds to a reference signal received power (Reference Signal Received Power, RSRP) threshold.

Exemplarily, the candidate resource subsets may be divided according to RSRP threshold values on the transmission resources.

Specifically, the RSRP measurement value of the candidate resources in subset 1 is lower than RSRP threshold value 1, and the RSRP measurement value of the candidate resources in subset 2 is lower than RSRP threshold value 2 (or, subset 2 needs to remove the candidate resources that are repeated with subset 1).

Exemplarily, the candidate resource subsets may also be divided according to the transmission resource proportion value.

Specifically, the ratio of the candidate resources in subset 1 to the candidate resources in the resource selection window is higher than x1%, and the ratio of the candidate resources in subset 2 to the candidate resources in the resource selection window is higher than x2% (or, subset 2 needs to remove the candidate resources repeated with subset 1). Values to be explained, where x% may be equivalent to the ratio of the candidate resources used when the PHY layer identifies the candidate resource set.

Exemplarily, the first UE will give priority to transmission resources in a subset with lower transmission resource interference. If the alternative resources that meet the resource selection requirements are insufficient, the first UE will select transmission resources in a subset with lower transmission resource interference in other subsets.

Exemplarily, when the first UE performs a resource evaluation or resource preemption decision, if it is found that there are suitable candidate resources in the subset with lower resource interference, the first UE can trigger resource reselection so as to select resources with lower interference.

Exemplarily, for a transmission resource selected from the transmission resource interference higher subset, the first UE determines whether to transmit on the selected resource based on probability, and/or the first UE delays the start position of its transmission (based on probability).

Exemplarily, the above probability is associated with the interference degree of transmission resources, or is associated with the QoS of transmission data.

For example, if the priority of the transmission data is higher, the UE has a greater probability of transmitting on the selected transmission resource; if the priority of the transmission data is higher, the UE has a greater probability of not delaying the transmission start position.

Optionally, in the embodiment of the present application, the process of step 201 “the first UE selects a transmission resource in a first manner” includes the following steps 201b:

Step 201b: The first UE selects a start time delay resource as a first transmission resource.

Exemplarily, there is a preset time delay between the start time delay resource and the transmission start position of the reference resource.

Exemplarily, the above-mentioned preset delay may be predefined or agreed upon by a protocol or configured or preconfigured on the network side.

Exemplarily, the interference determination in the process of selecting the start time delay resource is determined based on the resource reservation information of the start time delay resource.

Optionally, in the embodiment of the present application, the above step 201b “the first UE may select a start time delay resource as a first transmission resource” includes the following steps 201b1:

Step 201b1: When the sixth condition or the seventh condition is met, the first UE selects a start time delay resource as the first transmission resource.

Exemplarily, the sixth condition includes at least one of the following:

An RSRP measurement value on a regular transmission resource that is reserved by the first UE and overlaps with the start time delay resource is greater than or equal to a second preset threshold;

The total transmission power reserved by the first UE on the regular transmission resources overlapping with the start time delay resources is greater than or equal to the second transmission power.

Exemplarily, the second transmission power is associated with EDT.

Exemplarily, the seventh condition includes at least one of the following:

First, UE makes its own decision;

Insufficient alternative conventional resources;

The first UE triggers resource reselection due to resource selection re-evaluation or resource preemption detection.

Optionally, in the embodiment of the present application, after the above step 201b "the first UE selects the start time delay resource as the first transmission resource", the method for determining the transmission resource provided in the embodiment of the present application further includes step 301:

Step 301: The first UE generates resource reservation signaling.

Exemplarily, the resource reservation signaling is used to reserve the start time delay resource.

In this way, the UE can determine the transmission resources according to the first rule, thereby reducing the probability of LBT failure and avoiding the problem of reselecting transmission resources due to LBT failure, thereby reserving too many transmission resources.

Optionally, in the embodiment of the present application, the method for determining the transmission resource provided by the present application further includes the following step 401:

Step 401: UE sends first information.

Exemplarily, the first information is used to indicate that the first reserved transmission resources have been released.

Exemplarily, the first information includes at least one of the following:

Resource release indication signaling,

LBT duration reference information,

COT duration reference information;

Among them, the above-mentioned LBT duration reference information includes: the remaining time of Type 1 LBT; the above-mentioned COT duration reference information includes: the remaining duration of the COT of the above-mentioned UE, or the remaining duration of the COT shared by other UEs.

Exemplarily, the above-mentioned resource release indication signaling can be sidelink control information (Sidelink Control Information, SCI), media access control control element (Medium Access Control Control Element, MAC CE), sidelink feedback control information (Sidelink Feedback Control Information, SFCI) physical sidelink feedback control channel (Physical SideLink Feedback Channel, PSFCH) carrying resource release indication information.

Exemplarily, the first UE may also send a non-release reserved resource indication signaling. If no non-release reserved resource indication signaling is sent, it indicates that the first UE releases the reserved resources.

In this way, when the preset condition is met, the UE can release the reserved transmission resources, thereby reducing the number of reserved transmission resources.

In the method for determining transmission resources provided in an embodiment of the present application, the first UE selects transmission resources according to a first method, and/or reserves transmission resources according to a second method; wherein the first method includes at least one of the following: the first UE selects N first transmission resources according to a first rule, where N is a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE detects that the second UE has SL resource reservation behavior, the second transmission resource that can be used for SL delayed transmission is determined according to the resource reservation information and the first predetermined transmission power; the second method includes at least one of the following: the first UE releases the reserved transmission resources when the second condition is met; the first UE reserves transmission resources according to a predetermined reserved transmission resource number threshold. In this way, the UE can select transmission resources according to the first method, and reserve transmission resources according to the second method, thereby avoiding excessive resource reselection, releasing redundant reserved transmission resources, and thereby improving the utilization of transmission resources and the reliability of using transmission resources to transmit data.

The transmission resource determination method provided in the embodiment of the present application may be executed by a transmission resource determination device. In the embodiment of the present application, the transmission resource determination method performed by the transmission resource determination device is taken as an example to illustrate the transmission resource determination device provided in the embodiment of the present application.

An embodiment of the present application provides a transmission resource determination device 700, as shown in Figure 3, the transmission resource determination device 700 includes: a processing module 701; the processing module 701 is used to select transmission resources according to a first method, and/or reserve transmission resources according to a second method; wherein the first method includes at least one of the following: the first UE selects N first transmission resources according to a first rule, N is a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE detects that the second UE has SL resource reservation behavior, the second transmission resource that can be used for SL delayed transmission is determined according to the resource reservation information and the first predetermined transmission power; the second method includes at least one of the following: the first UE releases the reserved transmission resources when the second condition is met; the first UE reserves transmission resources according to a predetermined reserved transmission resource number threshold.

Optionally, in an embodiment of the present application, the above-mentioned first rule includes any one of the following items: when the third condition is not met, the above-mentioned N first transmission resources meet the fourth condition; when the third condition is met, the above-mentioned N first transmission resources do not need to meet the above-mentioned fourth condition.

Optionally, in an embodiment of the present application, the fourth condition includes any one of the following: the time interval between the current moment and the resource selection moment of the first transmission resource is greater than or equal to the first preset interval, and the time interval between the resource selection moments of the N first transmission resources is greater than or equal to the second preset interval.

Optionally, in an embodiment of the present application, the third condition includes at least one of the following: the quality of service QoS parameters of the SL data to be transmitted meet the preset QoS requirements, and the transmission resources selected by the first UE are within the channel occupancy time COT of the UE or the COT shared by other UEs.

Optionally, in an embodiment of the present application, the above-mentioned first condition includes at least one of the following: the QoS parameters of the SL data to be transmitted meet the preset QoS requirements, the network congestion level is less than the first preset threshold, the number of LBT failures exceeds the second preset threshold, and the cumulative time of LBT failures exceeds the third preset threshold; the window length of the contention window when the above-mentioned first UE performs LBT exceeds the first threshold.

Optionally, in an embodiment of the present application, the second condition includes at least one of the following: if the time interval to the reserved transmission resource is greater than the LBT duration requirement; the reserved transmission resource is not in the COT of the UE or in the COT shared by other UEs.

Optionally, in an embodiment of the present application, the processing module 701 is specifically used to select N first transmission resources from M candidate resource subsets; wherein each candidate resource subset corresponds to an RSRP threshold.

Optionally, in an embodiment of the present application, when the first UE detects that the total transmission power on the third transmission resource is greater than or equal to the first predetermined transmission power, the second transmission resource can be used for SL delayed transmission; wherein the third transmission resource is a reserved transmission resource for the second UE, and the third transmission resource overlaps with the second transmission resource.

Optionally, in an embodiment of the present application, the processing module 701 is specifically used for the first UE to select a start time delay resource as the first transmission resource; wherein the start time delay resource has a preset delay relative to the transmission start position of the reference resource.

Optionally, in an embodiment of the present application, the interference determination in the selection process of the above-mentioned start time delay resource is determined based on the resource reservation information of the above-mentioned start time delay resource.

Optionally, in an embodiment of the present application, the processing module 701 is specifically used for the first UE to select a start time delay resource as the first transmission resource when the sixth condition or the seventh condition is met.

Optionally, in an embodiment of the present application, the sixth condition includes at least one of the following: the RSRP measurement value on the regular transmission resources reserved by the first UE and overlapping with the start time delay resources is greater than or equal to a second preset threshold; the total transmission power on the regular transmission resources reserved by the first UE and overlapping with the start time delay resources is greater than or equal to the second transmission power.

Optionally, in an embodiment of the present application, the second transmission power is associated with EDT.

Optionally, in the embodiment of the present application, the seventh condition includes at least one of the following: autonomous decision by the first UE;

The alternative conventional resources are insufficient; the first UE triggers resource reselection due to resource selection re-evaluation or resource preemption detection.

Optionally, in an embodiment of the present application, the processing module 701 is further used to generate a resource reservation signaling, and the resource reservation signaling is used to reserve the start time delay resource.

Optionally, in an embodiment of the present application, in combination with Figure 3, as shown in Figure 4, the above-mentioned device 700 also includes: a sending module 702; the above-mentioned sending module 702 is used to send first information; wherein the first information is used to indicate that the first reserved transmission resource has been released; the above-mentioned first information includes at least one of the following: resource release indication signaling, LBT duration reference information, COT duration reference information; the above-mentioned LBT duration reference information includes: the remaining time of Type 1 LBT; the above-mentioned COT duration reference information includes: the remaining duration of the COT of the above-mentioned UE, or, the remaining duration of the COT shared by other UEs.

In the transmission resource determination device provided in the embodiment of the present application, the transmission resource is selected according to the first method, and/or the transmission resource is reserved according to the second method; wherein the above-mentioned first method includes at least one of the following: the first UE selects N first transmission resources according to the first rule, and N is a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE monitors that the second UE has SL resource reservation behavior, the second transmission resource that can be used for SL delayed transmission is determined according to the resource reservation information and the first predetermined transmission power; the above-mentioned second method includes at least one of the following: the first UE releases the reserved transmission resource when the second condition is met; the first UE reserves the transmission resource according to the predetermined reserved transmission resource number threshold. In this way, the UE can select the transmission resource according to the first method, and reserve the transmission resource according to the first method, thereby avoiding excessive resource reselection, releasing redundant reserved transmission resources, and thus improving the utilization rate of the transmission resource and the reliability of using the transmission resource to transmit data.

The transmission resource determination device in the embodiment of the present application may be an electronic device, such as an electronic device with an operating system, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices other than a terminal. Exemplarily, the terminal may include but is not limited to the types of terminal 11 listed above, and other devices may be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

The transmission resource determination device provided in the embodiment of the present application can implement various The same process is used to achieve the same technical effect, and will not be described here to avoid repetition.

Optionally, as shown in FIG5 , an embodiment of the present application further provides a communication device 800, including a processor 801 and a memory 802, wherein the memory 802 stores a program or instruction that can be run on the processor 801. For example, when the communication device 800 is a terminal, the program or instruction is executed by the processor 801 to implement the various steps of the embodiment of the method for determining the above-mentioned transmission resources, and can achieve the same technical effect. When the communication device 800 is a network side device, the program or instruction is executed by the processor 801 to implement the various steps of the embodiment of the method for determining the above-mentioned transmission resources, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

The embodiment of the present application also provides a UE, including a processor and a communication interface, the processor is used for the first UE to select transmission resources according to the first method, and/or to reserve transmission resources according to the second method; wherein the above-mentioned first method includes at least one of the following: the first UE selects N first transmission resources according to the first rule, and N is a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE monitors that the second UE has SL resource reservation behavior, the second transmission resource that can be used for SL delayed transmission is determined according to the resource reservation information and the first predetermined transmission power; the above-mentioned second method includes at least one of the following: the first UE releases the reserved transmission resources when the second condition is met; the first UE reserves transmission resources according to the predetermined reserved transmission resource number threshold. This UE embodiment corresponds to the above-mentioned terminal side method embodiment, and each implementation process and implementation method of the above-mentioned method embodiment can be applied to the terminal embodiment, and can achieve the same technical effect. Specifically, Figure 6 is a schematic diagram of the hardware structure of a UE that implements the embodiment of the present application.

The UE is a first UE, and the first UE 100 includes but is not limited to: a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109 and at least some of the components of the processor 110.

Those skilled in the art will appreciate that the terminal 100 may also include a power source (such as a battery) for supplying power to each component, and the power source may be logically connected to the processor 110 through a power management system, so as to implement functions such as managing charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG6 does not constitute a limitation on the terminal, and the terminal may include more or fewer components than shown in the figure, or combine certain components, or arrange components differently, which will not be described in detail here.

It should be understood that in the embodiment of the present application, the input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 107 includes a touch panel 1071 and at least one of other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as a volume control key, a switch key, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

In the embodiment of the present application, after receiving the downlink data from the network side device, the radio frequency unit 101 can transmit it to The processor 110 performs processing; in addition, the radio frequency unit 101 can send uplink data to the network side device. Generally, the radio frequency unit 101 includes but is not limited to an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

The memory 109 can be used to store software programs or instructions and various data. The memory 109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 109 may include a volatile memory or a non-volatile memory, or the memory 109 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

The processor 110 may include one or more processing units; optionally, the processor 110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 110.

Among them, the processor 110 is used to select transmission resources according to a first method, and/or reserve transmission resources according to a second method; wherein the first method includes at least one of the following: the first UE selects N first transmission resources according to a first rule, where N is a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE detects that the second UE has SL resource reservation behavior, the second transmission resource that can be used for SL delayed transmission is determined according to the resource reservation information and the first predetermined transmission power; the second method includes at least one of the following: the first UE releases the reserved transmission resources when the second condition is met; the first UE reserves transmission resources according to a predetermined threshold of the number of reserved transmission resources.

Optionally, in an embodiment of the present application, the processor 110 is specifically configured to select N first transmission resources from M candidate resource subsets; wherein each candidate resource subset corresponds to an RSRP threshold.

Optionally, in an embodiment of the present application, the processor 110 is specifically used for the first UE to select a start time delay resource as the first transmission resource; wherein the start time delay resource has a preset delay relative to a transmission start position of the reference resource.

Optionally, in an embodiment of the present application, the processor 110 is specifically configured to select a start time delay resource as the first transmission resource when the first UE satisfies the sixth condition or the seventh condition.

Optionally, in an embodiment of the present application, the processor 110 is further configured to generate a resource reservation signaling, wherein the resource reservation signaling is configured to reserve the start time delay resource.

Optionally, in the embodiment of the present application, the radio frequency unit 101 is used to send first information; wherein the first The information is used to indicate that the first reserved transmission resources have been released; the above-mentioned first information includes at least one of the following: resource release indication signaling, LBT duration reference information, COT duration reference information; the above-mentioned LBT duration reference information includes: the remaining time of Type 1 LBT; the above-mentioned COT duration reference information includes: the remaining duration of the COT of the above-mentioned UE, or the remaining duration of the COT shared by other UEs.

In the electronic device provided in the embodiment of the present application, transmission resources are selected in a first manner, and/or transmission resources are reserved in a second manner; wherein the first manner includes at least one of the following: the first UE selects N first transmission resources in accordance with a first rule, where N is a positive integer; the first UE triggers resource reselection when the first condition is met and LBT fails; when the first UE detects that the second UE has SL resource reservation behavior, the second transmission resource that can be used for SL delayed transmission is determined according to the resource reservation information and the first predetermined transmission power; the second manner includes at least one of the following: the first UE releases the reserved transmission resources when the second condition is met; the first UE reserves transmission resources according to the predetermined reserved transmission resource number threshold. In this way, the UE can select transmission resources in accordance with the first manner, and reserve transmission resources in accordance with the first manner, thereby avoiding excessive resource reselection, releasing redundant reserved transmission resources, and thereby improving the utilization of transmission resources and the reliability of using transmission resources to transmit data. An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned transmission resource determination method embodiment is implemented, and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

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

An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned transmission resource determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

An embodiment of the present application further provides a computer program/program product, which is stored in a storage medium. The computer program/program product is executed by at least one processor to implement the various processes of the above-mentioned transmission resource determination method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

An embodiment of the present application further provides a communication system, including: a terminal and a network side device, wherein the terminal can be used to execute the steps of the method for determining transmission resources as described above.

It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "includes a..." does not exclude the existence of other identical elements in the process, method, article or device that includes the element. Elements. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM/RAM, a magnetic disk, or an optical disk), and includes a number of instructions for enabling a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

A method for determining transmission resources, comprising:

The first user equipment UE selects a transmission resource according to a first manner, and/or reserves a transmission resource according to a second manner;

The first method includes at least one of the following:

The first UE selects N first transmission resources according to a first rule, where N is a positive integer;

The first UE triggers resource reselection when the first condition is met and LBT fails;

When the first UE monitors that the second UE has SL resource reservation behavior, determine a second transmission resource that can be used for SL delayed transmission according to the resource reservation information and the first predetermined transmission power;

The second method includes at least one of the following:

The first UE releases the reserved transmission resources when a second condition is met;

The first UE reserves transmission resources according to a predetermined reserved transmission resource number threshold.
The method according to claim 1, wherein the first rule comprises any one of the following:

When the third condition is not met, the N first transmission resources meet the fourth condition;

When the third condition is met, the N first transmission resources do not need to meet the fourth condition.
The method according to claim 1, wherein the fourth condition includes any one of the following:

The time interval between the current moment and the resource selection moment of the first transmission resource is greater than or equal to a first preset interval,

The time interval between resource selection moments of the N first transmission resources is greater than or equal to a second preset interval.
The method according to claim 2 or 3, wherein the third condition includes at least one of the following:

The QoS parameters of the SL data to be transmitted meet the preset QoS requirements.

The transmission resource selected by the first UE is located within the channel occupancy time COT of the UE or the COT shared by other UEs.
The method according to claim 1, wherein the first condition comprises at least one of the following:

The QoS parameters of the SL data to be transmitted meet the preset QoS requirements,

The network congestion level is less than a first preset threshold,

The number of LBT failures exceeds the second preset threshold,

The accumulated time of LBT failure exceeds the third preset threshold;

The window length of the contention window when the first UE performs LBT exceeds a first threshold.
The method according to claim 1, wherein the second condition comprises at least one of the following:

The time interval from the reserved transmission resource is greater than the LBT duration requirement;

The reserved transmission resources are not in the COT of the UE or in the COT shared by other UEs.
The method according to claim 1, wherein the first UE selects N first transmission resources according to the first rule, comprising:

The first UE selects N first transmission resources from M candidate resource subsets;

Each candidate resource subset corresponds to an RSRP threshold.
The method according to claim 1, wherein, when the first UE detects that the total transmission power on the third transmission resource is greater than or equal to the first predetermined transmission power, the second transmission resource can be used for SL delayed transmission;

The third transmission resource is a reserved transmission resource of the second UE, and the third transmission resource overlaps with the second transmission resource.
The method according to claim 1, wherein the first UE selects N first transmission resources according to the first rule, comprising:

The first UE selects a start time delay resource as the first transmission resource;

There is a preset time delay between the start time delay resource and the transmission start position of the reference resource.
The method according to claim 9, wherein the interference determination in the selection process of the start time delay resource is determined based on resource reservation information of the start time delay resource.
The method according to claim 9, wherein the first UE selects a start time delay resource as the first transmission resource, comprising:

When the sixth condition or the seventh condition is met, the first UE selects a start time delay resource as the first transmission resource.
The method according to claim 11, wherein the sixth condition comprises at least one of the following:

An RSRP measurement value on a regular transmission resource that overlaps with a start time delay resource and that is reserved by the first UE is greater than or equal to a second preset threshold;

The total transmission power reserved by the first UE on the regular transmission resources overlapping with the start time delay resources is greater than or equal to the second transmission power.
The method of claim 12, wherein the second transmission power is associated with EDT.
The method according to claim 11, wherein the seventh condition comprises at least one of the following:

The first UE autonomously determines;

Insufficient alternative conventional resources;

The first UE triggers resource reselection due to resource selection re-evaluation or resource preemption detection.
The method according to claim 9, wherein after the first UE selects a start time delay resource as the first transmission resource, the method further comprises:

The first UE generates resource reservation signaling, where the resource reservation signaling is used to reserve the start time delay resource.
The method according to claim 15, wherein the method further comprises:

The UE sends first information;

The first information is used to indicate that the first reserved transmission resource has been released;

The first information includes at least one of the following:

Resource release indication signaling,

LBT duration reference information,

COT duration reference information.
A transmission resource determination device, comprising: a processing module;

The processing module is used to select transmission resources according to a first method and/or to reserve transmission resources according to a second method;

The first method includes at least one of the following:

The first UE selects N first transmission resources according to a first rule, where N is a positive integer;

The first UE triggers resource reselection when the first condition is met and LBT fails;

When the first UE monitors that the second UE has SL resource reservation behavior, determine a second transmission resource that can be used for SL delayed transmission according to the resource reservation information and the first predetermined transmission power;

The second method includes at least one of the following:

The first UE releases the reserved transmission resources when a second condition is met;

The first UE reserves transmission resources according to a predetermined reserved transmission resource number threshold.
The apparatus according to claim 17, wherein the first rule comprises any one of the following:

When the third condition is not met, the N first transmission resources meet the fourth condition;

When the third condition is met, the N first transmission resources do not need to meet the fourth condition.
The apparatus according to claim 17, wherein the fourth condition comprises any one of the following:

The time interval between the current moment and the resource selection moment of the first transmission resource is greater than or equal to a first preset interval,

The time interval between resource selection moments of the N first transmission resources is greater than or equal to a second preset interval.
The apparatus according to claim 18 or 19, wherein the third condition comprises at least one of the following:

The QoS parameters of the SL data to be transmitted meet the preset QoS requirements.

The transmission resource selected by the first UE is located within the channel occupancy time COT of the UE or the COT shared by other UEs.
The apparatus according to claim 17, wherein the first condition comprises at least one of the following:

The QoS parameters of the SL data to be transmitted meet the preset QoS requirements,

The network congestion level is less than a first preset threshold,

The number of LBT failures exceeds the second preset threshold,

The accumulated time of LBT failure exceeds the third preset threshold;

The window length of the contention window when the first UE performs LBT exceeds a first threshold.
The apparatus according to claim 17, wherein the second condition comprises at least one of the following:

The time interval from the reserved transmission resource is greater than the LBT duration requirement;

The reserved transmission resources are not in the COT of the UE or in the COT shared by other UEs.
The device according to claim 17, wherein

The processing module is specifically configured to select N first transmission resources from M candidate resource subsets;

Each candidate resource subset corresponds to an RSRP threshold.
The apparatus according to claim 17, wherein, in a case where the first UE detects that the total transmission power on the third transmission resource is greater than or equal to the first predetermined transmission power, the second transmission resource can be used for SL delayed transmission;

The third transmission resource is a reserved transmission resource of the second UE, and the third transmission resource overlaps with the second transmission resource.
The device according to claim 17, wherein

The processing module is specifically configured for the first UE to select a start time delay resource as the first transmission resource;

There is a preset time delay between the start time delay resource and the transmission start position of the reference resource.
The apparatus according to claim 25, wherein the interference determination in the selection process of the start time delay resource is determined based on resource reservation information of the start time delay resource.
The device according to claim 25, wherein

The processing module is specifically configured to select a start time delay resource as the first transmission resource when the sixth condition or the seventh condition is met.
The apparatus according to claim 27, wherein the sixth condition comprises at least one of the following:

An RSRP measurement value on a regular transmission resource that overlaps with a start time delay resource and that is reserved by the first UE is greater than or equal to a second preset threshold;

The total transmission power reserved by the first UE on the regular transmission resources overlapping with the start time delay resources is greater than or equal to the second transmission power.
The apparatus of claim 28, wherein the second transmission power is associated with EDT.
The apparatus according to claim 27, wherein the seventh condition comprises at least one of the following:

The first UE autonomously determines;

Insufficient alternative conventional resources;

The first UE triggers resource reselection due to resource selection re-evaluation or resource preemption detection.
The device according to claim 25, wherein

The processing module is further used to generate resource reservation signaling, and the resource reservation signaling is used to reserve the start time delay resource.
The device according to claim 31, wherein the device further comprises: a sending module;

The sending module is used to send the first information;

The first information is used to indicate that the first reserved transmission resource has been released;

The first information includes at least one of the following:

Resource release indication signaling,

LBT duration reference information,

COT duration reference information.
A UE comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the method for determining a transmission resource as described in any one of claims 1 to 16 are implemented.
A readable storage medium storing a program or instruction, wherein the program or instruction, when executed by a processor, implements the steps of the method for determining a transmission resource as described in any one of claims 1 to 16.