WO2022214018A1

WO2022214018A1 - Sidelink resource selection method and device, terminal and storage medium

Info

Publication number: WO2022214018A1
Application number: PCT/CN2022/085482
Authority: WO
Inventors: 王欢; 纪子超; 彭淑燕
Original assignee: 维沃移动通信有限公司
Priority date: 2021-04-07
Filing date: 2022-04-07
Publication date: 2022-10-13
Also published as: CN115175316A

Abstract

The present application discloses a sidelink resource selection method and device, a terminal, and a storage medium, which belong to the technical field of communications. The sidelink resource selection method of the embodiments of the present application comprises: a terminal performing periodic partial detection according to the characteristics of data transmission and/or a preset rule, and/or the terminal performing continuous or aperiodic partial detection according to the characteristics of data transmission and/or the preset rule; and the terminal performing a resource selection according to the characteristics of data transmission and/or the preset rule.

Description

Side link resource selection method, device, terminal and storage medium

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the priority of the Chinese patent application with the application number 2021103735211 filed on April 7, 2021 and the invention title is "Sidelink resource selection method, device, terminal and storage medium", which is fully incorporated by reference this application.

technical field

The present application belongs to the field of communication technologies, and in particular relates to a sidelink resource selection method, device, terminal and storage medium.

Background technique

New Radio (NR) sidelink (sidelink, SL, or translated as secondary link, side link, side link, etc.) There are two resource allocation methods, one is based on base station scheduling (mode 1), the other is based on base station scheduling (mode 1). An autonomous resource selection (mode 2) based on User Equipment (UE). For the resource allocation method scheduled by the base station, the sidelink resources used by the UE for data transmission are determined by the base station and notified to the sender TX UE through downlink signaling. For the resource allocation method independently selected by the UE, the UE selects the available transmission resources in the (pre)configured resource pool. The resources used for transmission are randomly selected in the resource set.

In Rel-16 NR SL, the TX UE will perform resource reservation/indication for its allocated resources (reservation is divided into periodic reservation and aperiodic reservation), and the reserved resources are for future monitoring of physical sidelinks Used for control channel (Physical Sidelink Control Channel, PSCCH)/Physical Sidelink Shared Channel (Physical Sidelink Shared Channel, PSSCH) transmission. The UE needs to consider at least one of the continuous monitoring result and the periodic monitoring result when making resource selection. For periodic partial detection, when the UE selects resources, it needs to determine Y candidate time slots in the resource selection window; for continuous/aperiodic partial detection, before the UE determines the candidate resource set, it needs to perform continuity The size of the monitoring window is determined by T _A and T _B. The resource selection window can appear after the continuous detection window, and the resource selection will be carried out in the selection window.

NR data transmission delay requirements are relatively variable. Currently, UEs in the related art cannot adapt to the variable delay requirements of NR data transmission when making resource selection. The UE consumes a lot of power and cannot guarantee that the terminal can select transmission resources.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a method, device, terminal, and storage medium for selecting sidelink resources, which can solve the problem that in the related art, when the UE selects resources, the UE consumes a lot of power and cannot adapt to the variable delay requirement of NR data transmission. , there is no guarantee that the terminal can select the transmission resource.

In a first aspect, a method for selecting sidelink resources is provided, and the method includes:

The terminal performs periodic part detection according to the characteristics of data transmission and/or preset rules, and/or the terminal performs continuous or aperiodic part detection according to the characteristics of data transmission and/or preset rules;

The terminal selects resources according to the characteristics of data transmission and/or preset rules.

In a second aspect, a sidelink resource selection apparatus is provided, the apparatus comprising:

a resource detection unit, configured to perform periodic partial detection according to the characteristics of data transmission and/or preset rules, and/or perform continuous or aperiodic partial detection according to characteristics of data transmission and/or preset rules;

The resource selection unit is used for resource selection according to the characteristics of data transmission and/or preset rules.

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

In a fourth aspect, a terminal is provided, including a processor and a communication interface, wherein the processor is configured to perform periodic partial detection according to characteristics of data transmission and/or preset rules, and/or, according to characteristics of data transmission and/or preset rules for continuous or aperiodic partial detection; the processor is further configured to select resources according to the characteristics of data transmission and/or preset rules.

A fifth aspect provides a readable storage medium, on which a program or an instruction is stored, and when the program or instruction is executed by a processor, the method for selecting a side link resource according to the first aspect is implemented. step.

In a sixth aspect, a chip is provided, the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the side-by-side as described in the first aspect. Link resource selection method.

In a seventh aspect, a computer program/program product is provided, the computer program/program product is stored in a non-transitory storage medium, and the program/program product is executed by at least one processor to implement the first aspect The steps of the side link resource selection method.

In this embodiment of the present application, the terminal performs periodic part detection according to the characteristics of data transmission and/or preset rules, and/or performs continuous/aperiodic part detection, and performs periodic part detection according to the characteristics of data transmission and/or preset rules The rules for resource selection can meet the variable delay requirements of NR data transmission, improve the UE energy saving level, and at the same time ensure the reliability and effectiveness of data transmission.

Description of drawings

FIG. 1 is a schematic diagram of a wireless communication system to which an embodiment of the present application can be applied;

2 is a schematic flowchart of a sidelink resource selection method provided by an embodiment of the present application;

3 is a schematic diagram of a window length requirement for continuity detection provided by an embodiment of the present application;

4 is a schematic diagram of a distance requirement between the starting position of the continuous detection window and the starting position of the resource selection window provided by an embodiment of the present application;

5 is a schematic diagram of a distance requirement from a resource selection trigger time to a start position of a resource selection window according to an embodiment of the present application;

FIG. 6 is a schematic diagram of a distance requirement from a starting position of a continuous detection window to an alternative time slot provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a distance requirement between a resource selection trigger time and an alternative time slot provided by an embodiment of the present application;

Fig. 8 is a schematic diagram of the distance requirement between the continuous detection trigger moment and the resource selection trigger moment provided by the embodiment of the present application;

FIG. 9 is a schematic structural diagram of a sidelink resource selection apparatus provided by an embodiment of the present application;

10 is a schematic structural diagram of a communication device provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art fall within the protection scope of this application.

The terms "first", "second" and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and that "first", "second" distinguishes Usually it is a class, and the number of objects is not limited. For example, the first object may be one or multiple. In addition, "and/or" in the description and claims indicates at least one of the connected objects, and the character "/" generally indicates that the associated objects are in an "or" relationship.

It is worth noting that the technologies described in the embodiments of this application are not limited to Long Term Evolution (LTE)/LTE-Advanced (LTE-Advanced, LTE-A) systems, and can also be used in other wireless communication systems, such as code Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (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 not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and uses NR terminology in most of the description below, but the techniques are also applicable to applications other than NR system applications, such as 6th generation (6th ^generation ) Generation, 6G) communication system.

FIG. 1 is a schematic diagram of a wireless communication system to which an embodiment of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12 . The terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and 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 computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (VUE), pedestrian terminal (PUE) and other terminal-side devices, wearable devices include: smart watches, bracelets, headphones, glasses, etc. It should be noted that, the embodiment of the present application does not limit the specific type of the terminal 11 . The network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (eNB), Home Node B, Home Evolved Node B, WLAN Access Point, WiFi Node, Send Transmitting 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 specific technical terms. The base station in the NR system is taken as an example, but the specific type of the base station is not limited.

For UE autonomous resource selection mode 2, the specific working method is as follows:

1) TX UE first determines the resource selection window after the resource selection is triggered. The lower boundary of the resource selection window is at the time T1 after the resource selection is triggered, and the upper boundary of the resource selection is at the time T2 after the trigger, where T1 is realized by the UE. The mode is selected within a range of [T1_min, T1_max], T2 is the value selected by the UE implementation mode in the remaining packet delay budget (PDB) transmitted by its transport block (Transport Block, TB), T2 is not earlier than T1, and the minimum value of T2 is limited by T2_min.

2) Before resource selection, the UE needs to determine a candidate resource set (candidate resource set) for resource selection, wherein the number of candidate resource sub-channels is determined by the Media Access Control (MAC) layer;

The UE estimates the Reference Signal Receiving Power (RSRP) measurement value on the resources in the resource selection window (for example, by monitoring the Physical Sidelink Control Channel (PSCCH)/Physical Sidelink Sharing Channel (Physical Sidelink Shared Channel, PSSCH) estimation) is compared with the corresponding RSRP threshold, if the RSRP is higher than the RSRP threhold, the resource is excluded from the resource and cannot be included in the alternative resource set;

After resource exclusion, the remaining resources in the resource selection window form an alternative resource set;

The resources in the candidate resource set should account for no less than x% of the resources in the resource selection window. If it is less than x%, the RSRP threshold needs to be increased according to the step value (such as 3dB), and then the resource exclusion is performed. Operate until no less than the x% of resources can be selected. In addition, the RSRP comparison is related to the priority of the TB to be transmitted and the priority value demodulated on the PSCCH, and the specific process is not repeated.

3) After the candidate resource set is determined, the UE randomly selects transmission resources in the candidate resource set, and the number of the selected resources is determined according to the decision of the MAC layer. In addition, the UE may reserve transmission resources for the next transmission during the current transmission.

Periodic-based partial sensing is applicable when the resource pool has periodic resource reservation enabled. When the UE selects resources, it needs to determine Y candidate time slots in the resource selection window (the minimum value of Y is configured/pre-configured), and each time slot in the Y candidate time slots should have periodicity monitoring results.

Assumption

is one of the Y alternative time slots, then the UE is required to

The first k cycles are monitored to obtain periodic monitoring results.

The time slots that the UE needs to monitor are:

Among them, P _reserve is a period value, which is one or more configuration values, and each period k corresponds to one or more P _reserve .

Contiguous partial sensing (contiguous partial sensing) is applicable when resource pooling is enabled and/or periodic resource reservation is not enabled. When the UE selects resources, before the UE determines the set of candidate resources, it needs to perform continuous channel monitoring, and the size of the monitoring window is determined by _TA and _TB . The UE needs to consider at least one of the continuous monitoring result and the periodic monitoring result when making resource selection. In addition, the detection mechanism of the continuity part also involves the location of resource selection. The resource selection window can appear after the continuous detection window, and the resource selection will be performed in the selection window; will be performed on alternate time slots. It is worth noting that whether the 'position of resource selection' is named as a resource selection window or an alternative time slot, it is a time position in which resource selection can occur, and there is no essential difference.

Periodic part detection: NR SL has periodic and aperiodic transmission. For periodic transmission, the transmission period is also a variable size period. For small-period data transmission, or for aperiodic data transmission, if its resource selection meets the same periodic detection requirements (periodic partial detection) as for large-period data transmission, the UE will often perform periodic partial detection operations. , which will increase the power consumption of the UE. In addition, the data transmission delay requirements of NR are more variable, and the typical delay requirements are from 3ms to 100ms. For the periodic partial detection mechanism, the Y alternative time slot settings should be suitable for variable delay requirements to ensure that the UE can select transmission resources.

Aperiodic partial detection: Whether it is the setting of the detection window, or the setting of the selection window, it should be suitable for variable delay requirements. In addition, the design of the selection window should consider the time range of the aperiodic reservation as much as possible, so as to ensure that the UE can detect as many aperiodic resource reservations as possible.

In order to enable the terminal to meet the variable delay requirement of NR data transmission when selecting sidelink resources, improve the energy saving level of the UE, and at the same time ensure the reliability and effectiveness of data transmission, the embodiments of the present application provide a method for selecting sidelink resources , devices, terminals and storage media.

The method for selecting sidelink resources provided by the embodiments of the present application will be described in detail below through some embodiments and application scenarios with reference to the accompanying drawings.

FIG. 2 is a schematic flowchart of a method for selecting a sidelink resource according to an embodiment of the present application. As shown in FIG. 2 , the method includes:

Step 200, the terminal performs periodic part detection according to the characteristics of data transmission and/or preset rules, and/or, the terminal performs continuous or aperiodic part detection according to the characteristics of data transmission and/or preset rules;

Since different data transmissions correspond to different characteristics, such as the period of data transmission, delay, etc., different periodic detection requirements are adopted for different data transmissions, in order to improve the energy saving level of the UE, and at the same time ensure the reliability and effectiveness of data transmission. sex.

Therefore, in this embodiment of the present application, the terminal performs periodic partial detection according to the characteristics of data transmission and/or preset rules, and/or the terminal performs continuous or aperiodic detection according to the characteristics of data transmission and/or preset rules Partial detection, thereby appropriately relaxing the periodic detection time requirement and/or the aperiodic detection time requirement.

Step 201: The terminal selects resources according to the characteristics of data transmission and/or preset rules.

Optionally, for different data transmissions, different resource selection window lengths or the number of alternative resources are used to meet different data transmission requirements and ensure the reliability of data transmission. Make resource selection.

Optionally, the periodic partial detection according to the characteristics of data transmission and/or preset rules includes at least one of the following:

Perform a periodic detection operation according to the Quality of Service (QoS) of the transport block TB;

Perform periodic detection operations according to the downlink logical channel (Logical Channel, LCH) of the data to be transmitted;

Perform periodic detection operations based on system load.

Optionally, the periodic detection operation is performed according to at least one of the QoS of the TB, the LCH of the data to be transmitted, and the system load.

Optionally, the QoS includes at least one of parameters such as priority/(remaining) PDB/latency.

Optionally, performing the periodic detection operation according to the QoS of the TB includes at least one of the following:

According to the QoS of the TB, determine whether it is necessary to meet the requirements of the periodic detection time;

According to the QoS of the TB, the period value set configuration for periodic monitoring is determined.

Optionally, whether the terminal needs to meet the periodic detection time when selecting resources

The requirements are determined according to the QoS of the TB. Among them, the periodic detection time

is one of the candidate time slots, k represents the period, and p is the period value.

Optionally, when the terminal selects resources, the periodic monitoring period value set configuration (configured set of possible resource reservation periods) is determined according to the QoS of the TB.

Optionally, according to the QoS of the TB, determining whether to meet the requirement of periodic detection time includes at least one of the following:

In the case that the QoS of the TB is greater than or equal to the set QoS threshold, it is determined that periodic detection needs to be enabled;

In the case that the QoS of the TB is less than or equal to or less than the set QoS threshold, it is determined that the periodic detection does not need to be enabled.

For example, high-priority TB transmission does not require periodic detection to be enabled. Set the priority/latency/PDB threshold. If the priority/latency/PDB of the TB is greater than the priority/latency/PDB threshold, the corresponding resource selection needs to enable periodic detection, otherwise, it is not necessary to enable periodic detection.

Optionally, determining the periodic value set configuration for periodic monitoring according to the QoS of the TB, including:

The period to be monitored is determined according to the period value configuration corresponding to the QoS of the TB, wherein one QoS corresponds to one or a group of period values, or multiple QoSs correspond to one or a group of period values.

For example, for one or more priorities/latency/PDBs, one or a group of period values are configured, and the UE determines the period to be monitored according to the priority/latency/PDB of the TB to be transmitted.

Optionally, if the period value corresponding to the QoS of the TB is configured as a default state, the terminal determines that periodic detection is not required, or periodic detection is performed according to a preset period.

Optionally, the periodic detection operation is performed according to the LCH of the data to be transmitted, including at least one of the following:

According to the LCH of the data to be transmitted, determine whether it is necessary to meet the requirement of periodic detection time;

Determine the periodic value set configuration of periodic monitoring according to the LCH of the data to be transmitted;

Determine the number of detection periods for periodic monitoring according to the LCH of the data to be transmitted.

Optionally, when the terminal selects resources, whether it needs to meet the periodic detection time

The requirements are determined according to the LCH of the data mapping.

Optionally, when the terminal selects resources, the periodic monitoring period value set configuration (configured set of possible resource reservation periods) is determined by the LCH of the data mapping.

Optionally, when the terminal performs resource selection, the number of detection periods for periodic monitoring is determined by the LCH to which the data is mapped.

Optionally, according to the LCH of the data to be transmitted, it is determined whether the requirement of periodic detection time needs to be met, including:

In the case that the data transmission corresponding to the LCH of the data to be transmitted is configured or pre-configured by the control node so that periodic detection needs to be enabled, it is determined that the requirement of the periodic detection moment needs to be met.

For example, periodic detection needs to be enabled for data transmission corresponding to some LCHs, and the behavior may be configured/pre-configured by the control node.

The control node may be the node responsible for scheduling, the transmitting end TX UE or the receiving end RX UE.

Optionally, when the terminal transmits data, if all (and/or part of) the data in the data packet comes from the LCH, the UE needs to enable periodic detection; otherwise, periodic detection is not performed. In this way, the reliability of data transmission on the corresponding LCH can be guaranteed.

Optionally, it may be specified that when the terminal groups data packets, it can only group data corresponding to LCHs that require periodic detection/group data corresponding to LCHs that do not require periodic detection.

Optionally, determining the periodic value set configuration for periodic monitoring according to the LCH of the data to be transmitted, including:

The period to be monitored is determined according to the period value configuration corresponding to the LCH of the data to be transmitted, wherein one LCH corresponds to one or a group of period values, or multiple LCHs correspond to one or a group of period values.

For example, one or a group of period values are configured for one or more LCHs, and the UE determines the period to be monitored according to the LCH of the data to be transmitted.

Optionally, if the period value corresponding to the LCH of the data to be transmitted is configured as a default state, then the terminal transmits all (and/or part) of the data from the corresponding LCH, and the terminal does not need to perform periodic detection.

If the data in the data packet comes from LCHs configured with different period values when the terminal transmits data, the terminal performs periodic detection according to the collection or union of period values corresponding to all LCHs.

Optionally, it can be specified that when the terminal groups data packets, only data from LCHs configured with the same period value can be grouped together.

Optionally, determining the number of detection periods for periodic monitoring according to the LCH of the data to be transmitted, including:

The number of detection cycles for periodic monitoring is determined according to the configuration of the number of detection cycles corresponding to the LCH of the data to be transmitted.

For example, the control node configures/preconfigures a period value set, and the terminal may monitor a subset of the period value set when performing periodic monitoring. The number of cycles included in the subset is independently configured/preconfigured for one/multiple LCHs. The terminal determines the number according to the LCH corresponding to the data to be transmitted, and determines the period to be monitored according to the number. (Note: the set/subset may contain one cycle and the number may be zero).

Optionally, determining the number of detection periods for periodic monitoring according to the LCH of the data to be transmitted, further comprising:

If the data in the data packet when the terminal transmits data comes from LCHs configured with different detection cycles, the terminal determines the number of detection cycles for periodic monitoring according to the maximum, minimum or average value of the detection cycles corresponding to all LCHs .

Optionally, it may be specified that when the terminal groups data packets, only the data from the same number of LCHs can be grouped together.

Optionally, the QoS and/or the service type of the LCH-related service of the data to be transmitted, wherein the service type is a periodic service or a non-periodic service.

Optionally, the LCH may be associated with the QoS of services, so that services of different QoS adopt different periodic detection operations.

Optionally, the LCH can associate whether the service is a periodic service/aperiodic service, so that the periodic service/aperiodic service adopts different periodic detection operations.

Optionally, the higher layer informs the physical layer whether or how to enable the periodic detection operation for a certain TB transmission, so that the physical layer can take corresponding measures.

Optionally, performing the periodic detection operation according to the system load includes at least one of the following:

According to the system load, determine whether it is necessary to meet the requirements of periodic detection time;

Determine the periodic value set configuration for periodic monitoring according to the system load;

Determine the number of detection cycles for periodic monitoring according to the system load.

The requirements are determined according to the system load.

Optionally, when the terminal selects resources, the period value set configuration for periodic monitoring is determined according to the system load.

Optionally, when the terminal selects resources, the number of detection periods for periodic monitoring is determined according to the system load.

Optionally, the determining, according to the system load, whether it is necessary to meet the requirement of periodic detection time, includes at least one of the following:

When the system load is greater than or equal to the set threshold, it is determined that periodic detection needs to be enabled;

In the case that the system load is less than or equal to or less than the set threshold, it is determined that periodic detection does not need to be enabled.

For example, for high system load conditions, periodic detection does not need to be enabled. A load threshold is set. If the system load is greater than the load threshold, the corresponding resource selection needs to enable periodic detection, otherwise, it is not necessary to enable periodic detection.

Optionally, determining the periodic value set configuration for periodic monitoring according to the system load includes:

Determine the period to be monitored according to the system load range or the period value configuration corresponding to the system load value, where one system load range or system load value corresponds to one or a group of period values, or multiple system load ranges or system load sub-correspondence A period or set of period values.

For example, for one/more system load ranges/system load values, configure one/a group of period values, and the terminal determines the period to be monitored according to the system load.

Optionally, if the system load range or the period value corresponding to the system load value is configured as a default state, the terminal determines that periodic detection is not required, or periodic detection is performed according to a preset period.

Optionally, determining the number of detection periods for periodic monitoring according to the system load, including:

Determine the number of detection cycles for periodic monitoring according to the configuration of the number of detection cycles corresponding to the system load range or system load value, where a system load range or system load value corresponds to an independently configured or pre-configured number of detection cycles .

For example, the control node configures/preconfigures a period value set, and the UE can monitor a subset of the period value set when performing periodic monitoring. The number of cycles included in the independently configured/preconfigured subset for one/more system load ranges/system load values. The UE determines the number according to the system load range/system load value, and determines the period to be monitored according to the number. (Note: the set/subset may contain one cycle and the number may be zero).

Optionally, the system load is judged according to at least one of the following:

Channel busy than CBR;

For TB transmissions, the number of NACKs received and/or DTXs received discontinuously.

Optionally, the periodic detection operation according to the system load and the periodic detection operation according to the QoS/LCH may be combined.

For example, for a combination of a system load range/system load value and a QoS range/QoS value, set whether it is necessary to meet the periodic detection time

Requirement/Set the period value set for periodic monitoring Configure/Set the number of detection periods for periodic monitoring.

For example, for a combination of system load range/system load value and one/multiple LCHs, set whether to meet the periodic detection time

In this embodiment of the present application, the terminal performs periodic partial detection according to at least one of the QoS of the TB, the LCH of the data to be transmitted, and the system load, which can be used to relax the requirement of the periodic detection time, and the different data transmission (data transmission Different periodic detection requirements can be used to meet the variable delay requirements of NR data transmission, which can improve the UE energy saving level and ensure the reliability and effectiveness of data transmission.

Optionally, the terminal performs continuous or aperiodic partial detection according to characteristics of data transmission and/or preset rules, including at least one of the following:

Perform continuity detection operations according to the QoS of the TB;

Perform a continuity detection operation according to the LCH of the data to be transmitted;

Perform continuity detection operations based on system load.

Optionally, the continuity detection operation is performed according to at least one of the QoS of the TB, the LCH of the data to be transmitted, and the system load.

Optionally, performing the continuity detection operation according to the QoS of the TB includes at least one of the following:

According to the QoS of the TB, determine whether it is necessary to meet the requirements of the continuous detection duration;

According to the QoS of the TB, the setting of the continuity detection duration is determined.

Optionally, according to the QoS of the TB, determining whether to meet the requirement of the continuity detection duration includes at least one of the following:

In the case that the QoS of the TB is greater than or equal to the set QoS threshold, it is determined that the requirement of the continuity detection duration needs to be met;

In the case that the QoS of the TB is less than or equal to or less than the set QoS threshold, it is determined that the requirement for the duration of continuity detection does not need to be met.

For example, high-priority TB transmission does not require periodic detection to be enabled. Set the priority/latency/PDB threshold. If the priority/latency/PDB of the TB is greater than the priority/latency/PDB threshold, the corresponding resource selection needs to meet the requirements of the continuity detection duration, otherwise it does not need to meet the continuity detection duration requirements. Require.

Optionally, determining the setting of the continuity detection duration according to the QoS of the TB includes:

The setting of the continuity detection duration is determined according to the configuration of the continuity detection duration corresponding to the QoS of the TB, wherein one QoS corresponds to one or a group of continuity detection durations, or multiple QoS corresponds to one or a group of continuity detection durations .

For example, for one/multiple priorities/latency/PDBs, one/a group of continuity detection durations are configured, and the UE determines the setting of the continuity detection durations according to the priority/latency/PDB of the TB to be transmitted.

Optionally, if the configuration of the continuity detection duration corresponding to the QoS of the TB is the default state, the terminal determines that continuity detection is not required, or the continuity detection is performed according to the preset continuity detection duration.

Optionally, performing the continuity detection operation according to the LCH of the data to be transmitted includes at least one of the following:

According to the LCH of the data to be transmitted, determine whether it is necessary to meet the requirement of continuous detection duration;

The setting of the continuity detection duration is determined according to the LCH of the data to be transmitted.

Optionally, according to the LCH of the data to be transmitted, determine whether it is necessary to meet the requirement of the continuity detection duration, including:

In the case that the data transmission corresponding to the LCH of the data to be transmitted is configured or pre-configured by the control node to meet the requirement of the duration of continuity detection, it is determined that the requirement of duration of continuity detection needs to be met.

For example, the data transmission corresponding to some LCHs needs to meet the requirement of the continuity detection duration, and the behavior may be configured/pre-configured by the control node.

Optionally, when the terminal transmits data, if all (and/or part of) the data in the data packet comes from the LCH, the UE needs to meet the requirement for the duration of continuity detection; otherwise, no continuity detection is performed. In this way, the reliability of data transmission on the corresponding LCH can be guaranteed.

Optionally, it may be specified that when the terminal groups data packets, it can only group data corresponding to LCHs that require continuity detection/group data corresponding to LCHs that do not require continuity detection.

Optionally, determining the setting of the continuity detection duration according to the LCH of the data to be transmitted, including:

The setting of the continuity detection duration is determined according to the continuity detection duration configuration corresponding to the LCH of the data to be transmitted, wherein one LCH corresponds to one or a group of continuity detection durations, or multiple LCHs correspond to one or a group of continuity detection durations duration.

For example, one or a group of continuity detection durations are configured for one/multiple LCHs, and the UE determines the setting of the continuity detection durations according to the LCHs of the data to be transmitted.

Optionally, if the setting of the continuity detection duration corresponding to the LCH of the data to be transmitted is configured as the default state, then the terminal transmits all (and/or part) of the data from the corresponding LCH, and the terminal does not need to perform continuity detection.

If the data in the data packet when the terminal transmits data comes from LCHs configured with different continuity detection durations, the terminal performs continuity detection according to the collection or union of the continuity detection durations corresponding to all LCHs.

Optionally, it may be specified that when the terminal groups data packets, only data from LCHs configured with the same continuity detection duration can be grouped together.

Optionally, the QoS and/or the service type of the LCH-related service of the data to be transmitted, wherein the service type is a periodic service or an aperiodic service.

Optionally, the performing the continuity detection operation according to the system load includes at least one of the following:

According to the system load, determine whether it is necessary to meet the requirement of continuous detection duration;

According to the system load, determine the setting of the continuity detection time.

Optionally, the determining, according to the system load, whether the requirement for the duration of continuous detection needs to be met, includes at least one of the following:

In the case that the system load is greater than or equal to the set threshold, it is determined that the requirement for the duration of continuous detection needs to be met;

In the case that the system load is less than or equal to or less than the set threshold, it is determined that it is not necessary to meet the requirement of the continuity detection duration.

For example, in the case of high system load, it is not necessary to meet the requirement of continuous detection duration. A load threshold is set. If the system load is greater than the load threshold, the corresponding resource selection needs to meet the requirement of the duration of continuity detection, otherwise it does not need to meet the requirement of duration of continuity detection.

Optionally, determining the setting of the continuity detection duration according to the system load includes:

The setting of the continuity detection duration is determined according to the configuration of the continuity detection duration corresponding to the system load range or system load value, wherein one system load range or system load value corresponds to one or a group of continuity detection durations, or, multiple systems The load range or system load sub corresponds to one or a group of continuity detection durations.

For example, for one or more system load ranges/system load values, configure one or a group of continuity detection durations, and the terminal determines the setting of the continuity detection durations according to the system load.

Optionally, if the system load range or the continuity detection duration corresponding to the system load value is configured as a default state, the terminal determines that continuity detection is not required, or the continuity detection is performed according to the preset continuity detection duration.

Channel busy than CBR;

Optionally, the requirement for the continuous detection duration includes at least one of the following:

Window length requirements for continuity detection;

The distance requirement between the start position of the continuous detection window and the start position of the resource selection window;

The distance requirement from the resource selection trigger time to the start position of the resource selection window;

The distance between the starting position of the continuous detection window and the candidate time slot;

The distance requirement between the trigger time of resource selection and the candidate time slot;

The distance requirement between the triggering moment of continuous detection and the triggering moment of resource selection.

It should be noted that this method assumes that continuous detection and resource selection can be triggered separately.

Optionally, the requirement is a maximum value or a minimum value or a fixed value requirement.

3 is a schematic diagram of a window length requirement for continuity detection provided by an embodiment of the present application, FIG. 4 is a schematic diagram of a distance requirement from a start position of a continuous detection window to a start position of a resource selection window provided by an embodiment of the present application, and FIG. 5 is a schematic diagram of the present application A schematic diagram of the distance requirement from the resource selection trigger time to the start position of the resource selection window provided by the embodiment, FIG. 6 is a schematic diagram of the distance requirement from the start position of the continuous detection window to the candidate time slot provided by the embodiment of the present application, and FIG. 7 is the present application Figure 8 is a schematic diagram of the distance requirement between the trigger moment of continuous detection and the trigger moment of resource selection provided by the embodiment of the present application.

In Figures 3 to 8, n is the trigger time of resource selection, T _A /T _B is used to define the continuous detection window, T1/T2 is used to define the resource selection window, and the time slot marked by the box in [T1, T2] is the first candidate time slot in the candidate time slot/selection window, and time m is the trigger time of partial detection.

Optionally, the setting of the continuous detection duration includes at least one of the following:

Window length for continuity detection;

The distance between the start position of the continuous detection window and the start position of the resource selection window;

The distance from the resource selection trigger time to the start position of the resource selection window;

The distance between the resource selection trigger time and the candidate time slot;

The distance between the triggering moment of continuous detection and the triggering moment of resource selection.

Optionally, the distance is a maximum value or a minimum value or a fixed value.

Optionally, the distance may be agreed upon/configured/preconfigured in a protocol.

Optionally, the terminal performs periodic partial detection according to characteristics of data transmission and/or preset rules, and further includes at least one of the following:

Acquiring a data volume that does not meet the requirements of the periodic detection moment, wherein the data volume that does not meet the requirements of the periodic detection moment is a protocol agreement or configuration or pre-configuration;

Obtain the value k of the number of backoff cycles at the periodic detection time.

Optionally, limit the amount of transmitted data that does not meet the periodic detection requirement. For example, limit the amount of data, for example, limit the number of transmissions (including initial transmission and/or retransmission), the number of TBs, the CR value, the number of SL basic transmission units (one sub-channel and one slot as a basic unit), if Exceeding the limited number of times, the UE must comply with the periodic detection time requirement. The qualification may be a protocol convention/configuration/pre-configuration.

Optionally, obtain the periodic detection time

The number of backoff cycles in k value.

For one or more period values, obtain a k value/a set of k values according to the rules agreed in the protocol. The k value/maximum/minimum value is T/p, where T is a parameter agreed upon by the protocol/configured/pre-configured, for example, T=100ms; p is

period value in .

Optionally, the embodiment of the present application also provides an application in the re-evaluation/pre-emption detection that the terminal performs periodic partial detection according to at least one of the QoS of the TB, the LCH of the data to be transmitted, and the system load.

In Mode 2 resource allocation mode, the re-evaluation mechanism of resource selection is supported. The brief description of the mechanism is as follows: In order for the UE to judge whether the selected but unreserved resources (PSCCH/PSSCH resources) are still not idle / In low interference state, the UE performs resource selection re-evaluation at least at time 'm-T3', where time 'm' is the time when the resource reservation information is first sent, and T3 at least includes the duration of resource selection processing by the UE.

The UE re-executes the step of resource selection at least in 'm-T3' to obtain a set of candidate resources.

The resource selected by the UE is still in the candidate resource set (that is, the RSRP measurement value associated with the selected resource is not greater than the RSRP threshold associated with the determination of the candidate resource set), and the UE does not need to perform resource reselection; otherwise, the UE is in the candidate resource set. Select a new transport resource from the collection.

In Mode 2 resource allocation mode, a resource pre-emption mechanism is supported, which is briefly described as follows: resources already reserved by one UE and resources reserved/selected by other UEs with higher priority services Overlapping (partially overlapping), if the SL-RSRP measurement value of the UE on the relevant resource is greater than a certain associated SL-RSRP threshold, the UE will trigger resource reselection. In order to determine whether the reserved resources (PSCCH/PSSCH resources) are preempted, the UE performs preemption detection at least at time 'm-T3', where time 'm' is the time at which the resource is located or the reservation of the resource When the information is sent, T3 at least includes the duration for the UE to perform resource selection processing.

The UE re-executes the step of resource selection at least in 'm-T3' to obtain a set of candidate resources. If the resource selected by the UE is still in the alternative resource set (that is, the RSRP measurement value associated with the selected resource is not greater than the RSRP threshold associated with the determination of the alternative resource set), the UE does not need to perform resource reselection; otherwise, the UE is in standby Select a new transport resource from the selection set.

Optionally, in this embodiment of the present application, the terminal performs periodic partial detection according to characteristics of data transmission and/or preset rules, and further includes:

For TB transmission, if the resource position selected by the terminal is located at y, if the periodic detection time index y-k*p appears after the resource at y (ie after the resource selection window/after the candidate time slot/after the resource selection trigger time) ), the terminal does one of the following:

If the resource at y is not reserved at y-k*p (y-k*p is earlier/not later than y-T3), the terminal will monitor at least at y-k*p to re-evaluate the selected resource re-evaluation detection;

If at y-k*p (y-k*p is earlier/not later than y-T3), the resource located at y has been reserved, but the resource pool where the selected resource is located supports the resource preemption pre-emption mechanism, the terminal at least Listen at y-k*p for pre-emption detection of selected resources;

Among them, k is the number of rollback periods, and p is the period value.

Optionally, for resource preemption or resource re-evaluation, if the resource location selected by the terminal is located at y, the value of k and/or p in y-k*p is independent of the initial resource selection or reselection setting;

Optionally, the value of k includes at least 1.

Optionally, the terminal performs continuous or aperiodic partial detection according to characteristics of data transmission and/or preset rules, further comprising:

Obtain the amount of data that does not meet the requirements of the continuous detection duration;

Wherein, the amount of data that does not meet the requirement of the continuity detection duration is a protocol agreement or configuration or pre-configuration.

Optionally, the terminal selects resources according to characteristics of data transmission and/or preset rules, including at least one of the following:

determine the minimum candidate slot value;

Determines the resource selection window size.

The size of the resource selection window is also the length of the resource selection window.

Optionally, the determining the minimum candidate time slot value (that is, the Y value) includes at least one of the following:

Determine the minimum candidate time slot value according to the proportion of the minimum candidate time slot value agreed/configured/pre-configured in the packet delay budget PDB;

Determine the minimum candidate time slot value according to the QoS of the TB;

Wherein, the QoS includes at least one of parameters such as priority/(remaining) PDB/latency.

For example, a minimum Y value is configured for one or more priorities/latency/PDBs, and the UE determines the minimum Y value according to the priority/latency/PDB of the TB to be transmitted.

Optionally, if the minimum Y value is configured by default, when the terminal transmits the TB corresponding to the priority/latency/PDB, periodic detection is not required, or the detection is performed according to a predetermined period.

Determine the minimum candidate time slot value according to the LCH of the data to be transmitted;

For example, a minimum Y value is configured for one or more LCHs, and the terminal determines the minimum Y value according to the LCH of the data to be transmitted.

Optionally, if the minimum Y value is configured by default, the terminal transmits all (and/or part) of the data from the corresponding LCH, and the terminal does not need to perform periodic detection.

Optionally, when the terminal transmits data, if the data in the data packet comes from LCHs configured with different minimum Y values, the terminal determines the minimum value according to the minimum value/maximum value/average value of multiple minimum Y values corresponding to all LCHs. Y value.

Optionally, it can be specified that when the terminal groups data packets, only the data from the LCH with the same minimum Y value can be grouped together.

Optionally, the upper layer notifies the physical layer of the minimum Y value that should be used when a certain TB is transmitted.

Determine the minimum alternative time slot value according to the system load;

For example, a minimum Y value is configured for one/more for one/more system load ranges/system load values, and the terminal determines the minimum Y value according to the system load.

The minimum candidate time slot value is determined according to the minimum value T2_min of the upper limit of the resource selection window used for TB resource selection.

For example, a minimum Y value is configured for one or more T2_mins, and the terminal determines the minimum Y value according to the T2_min of the TB to be transmitted.

For example, the ratio/difference between the protocol agreed/configured/preconfigured minimum Y value and T2_min (the difference may be zero).

For example, the protocol agreed/configured/preconfigured the minimum Y value and the ratio/difference in T2_min-T1 (the difference may be zero).

Optionally, the determination of the minimum candidate time slot value according to the system load and the determination of the minimum candidate time slot value based on QoS/LCH may be used in combination.

For example, for a combination of system load range/system load value and one QoS range/QoS value, configure the minimum Y value.

For example, for a combination of system load range/system load value and one/more LCHs, configure the minimum Y value.

Channel busy than CBR;

Optionally, the determining the size of the resource selection window includes at least one of the following:

Determine the size of the resource selection window according to the proportion of the size of the resource selection window in the PDB (or remaining PDB) according to the protocol agreement/configuration/pre-configuration;

Determine the resource selection window size according to the QoS of the TB;

For example, the size of the resource selection window is configured for one or more priorities/latency/PDBs, and the UE determines the size of the resource selection window according to the priority/latency/PDB of the TB to be transmitted.

Optionally, if the size of the resource selection window is configured by default, when the terminal transmits the TB corresponding to priority/latency/PDB, periodic detection is not required, or the detection is performed according to a predetermined period.

Determine the size of the resource selection window according to the LCH of the data to be transmitted;

For example, the size of the resource selection window is configured for one or more LCHs, and the terminal determines the size of the resource selection window according to the LCH of the data to be transmitted.

Optionally, if the resource selection window size is configured by default, the terminal transmits all (and/or part) of the data from the corresponding LCH, and the terminal does not need to perform periodic detection.

Optionally, when the terminal transmits data, if the data in the data packet comes from LCHs configured with different resource selection window sizes, the terminal selects the minimum/maximum value/average of the window sizes according to multiple resource selection window sizes corresponding to all LCHs. Determines the resource selection window size.

Optionally, it may be specified that when the terminal groups data packets, only data from LCHs with the same resource selection window size can be grouped together.

Optionally, the higher layer informs the physical layer of the resource selection window size that should be used when a certain TB is transmitted.

Determine the resource selection window size according to the system load;

For example, the size of the resource selection window is configured for one/more for one/more system load ranges/system load values, and the terminal determines the size of the resource selection window according to the system load.

The size of the resource selection window is determined according to the minimum value T2_min of the upper limit of the resource selection window used for TB resource selection.

For example, a resource selection window size is configured for one or more T2_mins, and the terminal determines the resource selection window size according to the T2_min of the TB to be transmitted.

For example, the ratio/difference between the protocol contract/configuration/pre-configured resource selection window size and T2_min (the difference may be zero).

For example, the ratio/difference in the protocol contract/configuration/pre-configured resource selection window size and T2_min-T1 (the difference may be zero). Among them, T1 is the lower limit of the resource selection window.

Optionally, determining the size of the resource selection window according to the system load and determining the size of the resource selection window based on QoS/LCH may be used in combination.

For example, for a combination of system load range/system load value and one QoS range/QoS value, configure the resource selection window size.

For example, for a combination of system load range/system load value and one/more LCHs, configure the resource selection window size.

Channel busy than CBR;

In the embodiment of the present application, the terminal selects resources according to the characteristics of data transmission and/or preset rules, which can meet the variable delay requirement of NR data transmission, improve the energy saving level of the UE, and at the same time ensure the reliability and effectiveness of data transmission. sex.

It should be noted that, in the sidelink resource selection method provided by the embodiments of the present application, the execution subject may be a sidelink resource selection apparatus, or, in the sidelink resource selection apparatus, a method for executing the sidelink resource selection method may be executed. control module. In the embodiment of the present application, the method for selecting a side link resource performed by a side link resource selecting device is taken as an example to describe the device for selecting a side link resource provided by the embodiment of the present application.

FIG. 9 is a schematic structural diagram of a sidelink resource selection apparatus provided by an embodiment of the present application. As shown in FIG. 9 , the apparatus includes: a resource detection unit 910 and a resource selection unit 920, wherein,

A resource detection unit 910, configured to perform periodic part detection according to the characteristics of data transmission and/or preset rules, and/or perform continuous or aperiodic part detection according to the characteristics of data transmission and/or preset rules;

The resource selection unit 920 is configured to select resources according to characteristics of data transmission and/or preset rules.

In this embodiment of the present application, periodic part detection and/or continuous/aperiodic part detection are performed according to data transmission characteristics and/or preset rules, and resource selection is performed according to data transmission characteristics and/or preset rules , can meet the variable delay requirements of NR data transmission, can improve the energy saving level of UE, and ensure the reliability and effectiveness of data transmission.

Optionally, the resource detection unit is configured to perform at least one of the following:

Perform a periodic detection operation according to the quality of service QoS of the transport block TB;

Perform a periodic detection operation according to the downlink logical channel LCH of the data to be transmitted;

Perform periodic detection operations based on system load.

Optionally, the periodic detection operation performed according to the LCH of the data to be transmitted includes at least one of the following:

Optionally, the determining the periodic value set configuration for periodic monitoring according to the LCH of the data to be transmitted, further includes:

When the system load is less than or equal to or less than the set threshold, it is determined that periodic detection does not need to be enabled.

Channel busy than CBR;

Perform continuity detection operations according to the QoS of the TB;

Perform continuity detection operations based on system load.

Window length requirements for continuity detection;

Window length for continuity detection;

Optionally, the resource detection unit is further configured to:

For TB transmission, if the selected resource location is at y, and if the periodic detection time index y-k*p appears after the resource at said y, do one of the following:

If at y-k*p, the resource at y is not reserved, the terminal monitors at least at y-k*p;

If at y-k*p, the resource at y has been reserved, but the resource pool where the selected resource is located supports the resource preemption mechanism, the terminal will monitor at least at y-k*p;

Wherein, for resource preemption or resource re-evaluation, if the resource location selected by the terminal is located at y, the value of k and/or p in y-k*p is independent of the setting of initial resource selection or reselection;

Among them, k is the number of rollback periods, and p is the period value.

Optionally, for resource preemption or resource re-evaluation, if the resource location selected by the terminal is located at y, the value of k and/or p in y-k*p is independent of the initial resource selection or reselection setting.

Optionally, the resource detection unit is further configured to:

Optionally, the resource selection unit is configured to perform at least one of the following:

determine the minimum candidate slot value;

Determines the resource selection window size.

Optionally, the determining the minimum candidate time slot value includes at least one of the following:

Determine the minimum candidate time slot value according to the ratio of the protocol agreed/configured/preconfigured minimum candidate time slot value in the packet data packet delay budget PDB;

Determine the minimum candidate time slot value according to the QoS of the TB;

Determine the minimum alternative time slot value according to the system load;

Determine the size of the resource selection window according to the proportion of the size of the resource selection window in the agreement/configuration/pre-configuration in the PDB;

Determine the resource selection window size according to the QoS of the TB;

Determine the resource selection window size according to the system load;

In the embodiment of the present application, resource selection is performed according to the characteristics of data transmission and/or preset rules, which can meet the variable delay requirement of NR data transmission, improve the energy saving level of UE, and ensure the reliability and effectiveness of data transmission at the same time. .

The apparatus for selecting a side link resource in this embodiment of the present application may be an apparatus, an apparatus having an operating system or an electronic device, and may also be a component, an integrated circuit, or a chip in a terminal. The apparatus or electronic device may be a mobile terminal or a non-mobile terminal. Exemplarily, the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.

The apparatus for selecting a side link resource provided in this embodiment of the present application can implement each process implemented by the method embodiments in FIG. 2 to FIG. 8 , and achieve the same technical effect. To avoid repetition, details are not repeated here.

Optionally, as shown in FIG. 10 , an embodiment of the present application further provides a communication device 1000, including a processor 1001, a memory 1002, a program or instruction stored in the memory 1002 and executable on the processor 1001, For example, when the communication device 1000 is a terminal, when the program or instruction is executed by the processor 1001, each process of the above-mentioned embodiments of the method for selecting sidelink resources can be implemented, and the same technical effect can be achieved. When the communication device 1000 is a network side device, when the program or instruction is executed by the processor 1001, each process of the above-mentioned embodiment of the method for selecting a side link resource can be achieved, and the same technical effect can be achieved. To avoid repetition, details are not repeated here. .

An embodiment of the present application further provides a terminal, including a processor and a communication interface, where the processor is configured to perform periodic partial detection according to characteristics of data transmission and/or preset rules, and/or, according to characteristics and/or preset rules of data transmission A rule is set for continuous or aperiodic partial detection, and the processor is also used for resource selection. This terminal embodiment corresponds to the above-mentioned terminal-side method embodiment, and each implementation process and implementation manner of the above-mentioned method embodiment can be applied to this terminal embodiment, and can achieve the same technical effect. Specifically, FIG. 11 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.

The terminal 1100 includes but is not limited to: a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, and a processor 1110, etc. at least part of the components.

Those skilled in the art can understand that the terminal 1100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 1110 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions. The terminal structure shown in FIG. 11 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.

It should be understood that, in this embodiment of the present application, the input unit 1104 may include a graphics processor (Graphics Processing Unit, GPU) 11041 and a microphone 11042, and the graphics processor 11041 is used to communicate with the image capture device ( Such as camera) to obtain still pictures or video image data for processing. The display unit 1106 may include a display panel 11061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 1107 includes a touch panel 11071 and other input devices 11072. The touch panel 11071 is also called a touch screen. The touch panel 11071 may include two parts, a touch detection device and a touch controller. Other input devices 11072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be described herein again.

In the embodiment of the present application, the radio frequency unit 1101 receives the downlink data from the network side device, and then processes it to the processor 1110; in addition, sends the uplink data to the network side device. Generally, the radio frequency unit 1101 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.

Memory 1109 may be used to store software programs or instructions as well as various data. The memory 1109 may mainly include a storage program or instruction area and a storage data area, wherein the stored program or instruction 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.) and the like. In addition, the memory 1109 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. For example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.

The processor 1110 may include one or more processing units; optionally, the processor 1110 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1110.

The processor 1110 is configured to perform periodic partial detection according to the characteristics of data transmission and/or preset rules, and/or perform continuous or aperiodic partial detection according to the characteristics of data transmission and/or preset rules; The processor 1110 is also used for resource selection.

In the embodiment of the present application, the terminal performs periodic part detection and/or continuous/aperiodic part detection according to the characteristics of data transmission and/or preset rules, and performs resource detection according to the characteristics of data transmission and/or preset rules Selecting, can meet the variable delay requirements of NR data transmission, can improve the level of UE energy saving, while ensuring the reliability and effectiveness of data transmission.

Optionally, the processor 1110 is further configured to execute at least one of the following:

Perform periodic detection operations based on system load.

Channel busy than CBR;

Perform continuity detection operations according to the QoS of the TB;

Perform continuity detection operations based on system load.

Window length requirements for continuity detection;

Window length for continuity detection;

Optionally, the processor 1110 is further configured to:

Among them, k is the number of rollback periods, and p is the period value.

Optionally, the processor 1110 is further configured to:

determine the minimum candidate slot value;

Determines the resource selection window size.

Determine the minimum candidate time slot value according to the QoS of the TB;

Determine the minimum alternative time slot value according to the system load;

Determine the resource selection window size according to the QoS of the TB;

Determine the resource selection window size according to the system load;

An 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 instruction is executed by a processor, each process of the foregoing sidelink resource selection method embodiment is implemented, and The same technical effect can be achieved, and in order to avoid repetition, details are not repeated here.

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

An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above-mentioned method for selecting a side link resource Each process of the embodiment can achieve the same technical effect, and to avoid repetition, it will not be repeated here.

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

It should be noted that, herein, the terms "comprising", "comprising" or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements, It also includes other elements not expressly listed or inherent to such a process, method, article or apparatus. Without further limitation, an element qualified by the phrase "comprising a..." does not preclude the presence of additional identical elements in a process, method, article or apparatus that includes 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 the reverse order depending on the functions involved. To perform functions, for example, 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 some examples may be combined in other examples.

From the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is better implementation. Based on this understanding, the technical solutions of the present application can be embodied in the form of computer software products that are essentially or contribute to the prior art, and the computer software products are stored in a storage medium (such as ROM/RAM, magnetic disk , CD-ROM), including several instructions to make a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present application.

The embodiments of the present application have been described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific embodiments, which are merely illustrative rather than restrictive. Under the inspiration of this application, without departing from the scope of protection of the purpose of this application and the claims, many forms can be made, which all fall within the protection of this application.

Claims

A side link resource selection method, comprising:

The terminal performs periodic part detection according to the characteristics of data transmission and/or preset rules, and/or the terminal performs continuous or aperiodic part detection according to the characteristics of data transmission and/or preset rules;

The terminal selects resources according to the characteristics of data transmission and/or preset rules.
The method for selecting sidelink resources according to claim 1, wherein the periodic partial detection according to characteristics of data transmission and/or preset rules includes at least one of the following:

Perform a periodic detection operation according to the quality of service QoS of the transport block TB;

Perform a periodic detection operation according to the downlink logical channel LCH of the data to be transmitted;

Perform periodic detection operations based on system load.
The method for selecting sidelink resources according to claim 2, wherein the performing a periodic detection operation according to the QoS of the TB includes at least one of the following:

According to the QoS of the TB, determine whether it is necessary to meet the requirements of the periodic detection time;

According to the QoS of the TB, the period value set configuration for periodic monitoring is determined.
The method for selecting sidelink resources according to claim 3, wherein the determining, according to the QoS of the TB, whether it is necessary to meet the requirement of the periodic detection time, comprises at least one of the following:

In the case that the QoS of the TB is greater than or equal to the set QoS threshold, it is determined that periodic detection needs to be enabled;

In the case that the QoS of the TB is less than or equal to or less than the set QoS threshold, it is determined that the periodic detection does not need to be enabled.
The method for selecting sidelink resources according to claim 3, wherein the determining the period value set configuration of the periodic monitoring according to the QoS of the TB comprises:

The period to be monitored is determined according to the period value configuration corresponding to the QoS of the TB, wherein one QoS corresponds to one or a group of period values, or multiple QoSs correspond to one or a group of period values.
The method for selecting sidelink resources according to claim 2, wherein the performing a periodic detection operation according to the LCH of the data to be transmitted comprises at least one of the following:

According to the LCH of the data to be transmitted, determine whether it is necessary to meet the requirement of periodic detection time;

Determine the periodic value set configuration of periodic monitoring according to the LCH of the data to be transmitted;

Determine the number of detection periods for periodic monitoring according to the LCH of the data to be transmitted.
The method for selecting sidelink resources according to claim 6, wherein the determining, according to the LCH of the data to be transmitted, whether it is necessary to meet the requirement of periodic detection time, comprising:

In the case that the data transmission corresponding to the LCH of the data to be transmitted is configured or pre-configured by the control node so that periodic detection needs to be enabled, it is determined that the requirement of the periodic detection moment needs to be met.
The method for selecting sidelink resources according to claim 6, wherein the determining, according to the LCH of the data to be transmitted, determines the period value set configuration for periodic monitoring, comprising:

The period to be monitored is determined according to the period value configuration corresponding to the LCH of the data to be transmitted, wherein one LCH corresponds to one or a group of period values, or multiple LCHs correspond to one or a group of period values.
The method for selecting sidelink resources according to claim 6, wherein the determining, according to the LCH of the data to be transmitted, determines the period value set configuration for periodic monitoring, comprising:

If the data in the data packet comes from LCHs configured with different period values when the terminal transmits data, the terminal performs periodic detection according to the collection or union of period values corresponding to all LCHs.
The method for selecting sidelink resources according to claim 6, wherein the determining the number of detection periods for periodic monitoring according to the LCH of the data to be transmitted comprises:

The number of detection cycles for periodic monitoring is determined according to the configuration of the number of detection cycles corresponding to the LCH of the data to be transmitted.
The method for selecting sidelink resources according to claim 10, wherein the determining the number of detection periods for periodic monitoring according to the LCH of the data to be transmitted further comprises:

If the data in the data packet when the terminal transmits data comes from LCHs configured with different detection cycles, the terminal determines the number of detection cycles for periodic monitoring according to the maximum, minimum or average value of the detection cycles corresponding to all LCHs .
The sidelink resource selection method according to any one of claims 2, 6-11, wherein the QoS and/or service type of the LCH-related service of the data to be transmitted, wherein the service type is periodic service or Aperiodic business.
The method for selecting sidelink resources according to claim 2, wherein the performing a periodic detection operation according to a system load comprises at least one of the following:

According to the system load, determine whether it is necessary to meet the requirements of periodic detection time;

Determine the periodic value set configuration for periodic monitoring according to the system load;

Determine the number of detection cycles for periodic monitoring according to the system load.
The method for selecting sidelink resources according to claim 13, wherein the determining according to the system load whether it is necessary to meet the requirement of periodic detection time includes at least one of the following:

When the system load is greater than or equal to the set threshold, it is determined that periodic detection needs to be enabled;

When the system load is less than or equal to or less than the set threshold, it is determined that periodic detection does not need to be enabled.
The method for selecting sidelink resources according to claim 13, wherein the determining the period value set configuration for periodic monitoring according to the system load comprises:

Determine the period to be monitored according to the system load range or the period value configuration corresponding to the system load value, where one system load range or system load value corresponds to one or a group of period values, or multiple system load ranges or system load sub-correspondence A period or set of period values.
The method for selecting sidelink resources according to claim 13, wherein the determining the number of detection periods for periodic monitoring according to the system load comprises:

Determine the number of detection cycles for periodic monitoring according to the configuration of the number of detection cycles corresponding to the system load range or system load value, where a system load range or system load value corresponds to an independently configured or pre-configured number of detection cycles .
The sidelink resource selection method according to any one of claims 2, 13-16, wherein the system load is judged according to at least one of the following:

Channel busy than CBR;

For TB transmissions, the number of NACKs received and/or DTXs received discontinuously.
The sidelink resource selection method according to claim 1, wherein the terminal performs continuous or aperiodic partial detection according to characteristics of data transmission and/or preset rules, including at least one of the following:

Perform continuity detection operations according to the QoS of the TB;

Perform a continuity detection operation according to the LCH of the data to be transmitted;

Perform continuity detection operations based on system load.
The method for selecting sidelink resources according to claim 18, wherein the performing the continuity detection operation according to the QoS of the TB comprises at least one of the following:

According to the QoS of the TB, determine whether it is necessary to meet the requirements of the continuous detection duration;

According to the QoS of the TB, the setting of the continuity detection duration is determined.
The method for selecting sidelink resources according to claim 18, wherein the performing a continuity detection operation according to the LCH of the data to be transmitted comprises at least one of the following:

According to the LCH of the data to be transmitted, determine whether it is necessary to meet the requirement of continuous detection duration;

The setting of the continuity detection duration is determined according to the LCH of the data to be transmitted.
The method for selecting sidelink resources according to claim 18, wherein the performing the continuity detection operation according to the system load comprises at least one of the following:

According to the system load, determine whether it is necessary to meet the requirement of continuous detection duration;

According to the system load, determine the setting of the continuity detection time.
The sidelink resource selection method according to any one of claims 19-21, wherein the requirement for the continuity detection duration includes at least one of the following:

Window length requirements for continuity detection;

The distance requirement between the start position of the continuous detection window and the start position of the resource selection window;

The distance requirement from the resource selection trigger time to the start position of the resource selection window;

The distance between the starting position of the continuous detection window and the candidate time slot;

The distance requirement between the trigger time of resource selection and the candidate time slot;

The distance requirement between the triggering moment of continuous detection and the triggering moment of resource selection.
The sidelink resource selection method according to any one of claims 19-21, wherein the setting of the continuity detection duration includes at least one of the following:

Window length for continuity detection;

The distance between the start position of the continuous detection window and the start position of the resource selection window;

The distance from the resource selection trigger time to the start position of the resource selection window;

The distance between the starting position of the continuous detection window and the candidate time slot;

The distance between the resource selection trigger time and the candidate time slot;

The distance between the triggering moment of continuous detection and the triggering moment of resource selection.
The method for selecting sidelink resources according to claim 1, wherein the terminal performs periodic partial detection according to characteristics of data transmission and/or preset rules, further comprising at least one of the following:

Acquiring a data volume that does not meet the requirements of the periodic detection moment, wherein the data volume that does not meet the requirements of the periodic detection moment is a protocol agreement or configuration or pre-configuration;

Obtain the value k of the number of backoff cycles at the periodic detection time.
The method for selecting sidelink resources according to claim 1, wherein the terminal performs periodic partial detection according to characteristics of data transmission and/or preset rules, further comprising:

For TB transmission, if the resource position selected by the terminal is located at y, and if the periodic detection time index y-k*p appears after the resource at the y, the terminal performs one of the following:

If at y-k*p, the resource at y is not reserved, the terminal monitors at least at y-k*p;

If at y-k*p, the resource at y has been reserved, but the resource pool where the selected resource is located supports the resource preemption mechanism, the terminal will monitor at least at y-k*p;

Among them, k is the number of rollback periods, and p is the period value.
The sidelink resource selection method according to claim 25, wherein, for resource preemption or resource re-evaluation, if the resource position selected by the terminal is located at y, the value of k and/or p in y-k*p is independent of the initial Resource selection or reselection settings.
The sidelink resource selection method according to claim 1, wherein the terminal performs continuous or aperiodic partial detection according to characteristics of data transmission and/or preset rules, further comprising:

Obtain the amount of data that does not meet the requirements of the continuous detection duration;

Wherein, the amount of data that does not meet the requirement of the continuity detection duration is a protocol agreement or configuration or pre-configuration.
The method for selecting sidelink resources according to claim 1, wherein the terminal selects resources according to characteristics of data transmission and/or preset rules, including at least one of the following:

determine the minimum candidate slot value;

Determines the resource selection window size.
The method for selecting sidelink resources according to claim 28, wherein the determining the minimum candidate time slot value comprises at least one of the following:

Determine the minimum candidate time slot value according to the ratio of the protocol agreed/configured/preconfigured minimum candidate time slot value in the packet data packet delay budget PDB;

Determine the minimum candidate time slot value according to the QoS of the TB;

Determine the minimum candidate time slot value according to the LCH of the data to be transmitted;

Determine the minimum alternative time slot value according to the system load;

The minimum candidate time slot value is determined according to the minimum value T2_min of the upper limit of the resource selection window used for TB resource selection.
The method for selecting sidelink resources according to claim 28, wherein the determining the size of the resource selection window comprises at least one of the following:

Determine the size of the resource selection window according to the proportion of the size of the resource selection window in the agreement/configuration/pre-configuration in the PDB;

Determine the resource selection window size according to the QoS of the TB;

Determine the size of the resource selection window according to the LCH of the data to be transmitted;

Determine the resource selection window size according to the system load;

The size of the resource selection window is determined according to the minimum value T2_min of the upper limit of the resource selection window used for TB resource selection.
A side link resource selection device, comprising:

A resource detection unit, for performing periodic partial detection according to characteristics of data transmission and/or preset rules, and/or, performing continuous or aperiodic partial detection according to characteristics of data transmission and/or preset rules;

The resource selection unit is used for resource selection according to the characteristics of data transmission and/or preset rules.
The sidelink resource selection apparatus according to claim 31, wherein the resource detection unit is configured to perform at least one of the following:

Perform a periodic detection operation according to the quality of service QoS of the transport block TB;

Perform a periodic detection operation according to the downlink logical channel LCH of the data to be transmitted;

Perform periodic detection operations based on system load.
The apparatus for selecting sidelink resources according to claim 32, wherein the performing a periodic detection operation according to the QoS of the TB comprises at least one of the following:

According to the QoS of the TB, determine whether it is necessary to meet the requirements of the periodic detection time;

According to the QoS of the TB, the period value set configuration for periodic monitoring is determined.
The apparatus for selecting sidelink resources according to claim 32, wherein the performing a periodic detection operation according to the LCH of the data to be transmitted comprises at least one of the following:

According to the LCH of the data to be transmitted, determine whether it is necessary to meet the requirement of periodic detection time;

Determine the periodic value set configuration of periodic monitoring according to the LCH of the data to be transmitted;

Determine the number of detection periods for periodic monitoring according to the LCH of the data to be transmitted.
The apparatus for selecting sidelink resources according to claim 32, wherein the performing a periodic detection operation according to a system load comprises at least one of the following:

According to the system load, determine whether it is necessary to meet the requirements of periodic detection time;

Determine the periodic value set configuration for periodic monitoring according to the system load;

Determine the number of detection cycles for periodic monitoring according to the system load.
The sidelink resource selection apparatus according to claim 31, wherein the resource detection unit is configured to perform at least one of the following:

Perform continuity detection operations according to the QoS of the TB;

Perform a continuity detection operation according to the LCH of the data to be transmitted;

Perform continuity detection operations based on system load.
The sidelink resource selection apparatus according to claim 36, wherein the performing a continuity detection operation according to the QoS of the TB includes at least one of the following:

According to the QoS of the TB, determine whether it is necessary to meet the requirements of the continuous detection duration;

According to the QoS of the TB, the setting of the continuity detection duration is determined.
The apparatus for selecting sidelink resources according to claim 36, wherein the performing a continuity detection operation according to the LCH of the data to be transmitted comprises at least one of the following:

According to the LCH of the data to be transmitted, determine whether it is necessary to meet the requirement of continuous detection duration;

The setting of the continuity detection duration is determined according to the LCH of the data to be transmitted.
The apparatus for selecting sidelink resources according to claim 36, wherein the performing the continuity detection operation according to the system load comprises at least one of the following:

According to the system load, determine whether it is necessary to meet the requirement of continuous detection duration;

According to the system load, determine the setting of the continuity detection time.
The sidelink resource selection apparatus according to claim 31, wherein the resource detection unit is further configured to perform at least one of the following:

Acquiring a data volume that does not meet the requirements of the periodic detection moment, wherein the data volume that does not meet the requirements of the periodic detection moment is a protocol agreement or configuration or pre-configuration;

Obtain the value k of the number of backoff cycles at the periodic detection time.
The sidelink resource selection apparatus according to claim 31, wherein the resource detection unit is further configured to:

For TB transmission, if the selected resource location is at y, and if the periodic detection time index y-k*p appears after the resource at said y, do one of the following:

If at y-k*p, the resource at y is not reserved, the terminal monitors at least at y-k*p;

If at y-k*p, the resource at y has been reserved, but the resource pool where the selected resource is located supports the resource preemption mechanism, the terminal will monitor at least at y-k*p;

Wherein, for resource preemption or resource re-evaluation, if the resource location selected by the terminal is located at y, the value of k and/or p in y-k*p is independent of the setting of initial resource selection or reselection;

Among them, k is the number of rollback periods, and p is the period value.
The sidelink resource selection apparatus according to claim 31, wherein the resource selection unit is configured to perform at least one of the following:

determine the minimum candidate slot value;

Determines the resource selection window size.
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 being executed by the processor to implement any one of claims 1 to 30. A step of the sidelink resource selection method.
A readable storage medium, on which a program or an instruction is stored, and when the program or instruction is executed by a processor, the steps of the method for selecting a side link resource according to any one of claims 1 to 30 are implemented .
A chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used for running programs or instructions to implement the side chain according to any one of claims 1 to 30 The steps of the road resource selection method.
A computer program/program product stored in a storage medium, the program/program product being executed by at least one processor to implement the side chain according to any one of claims 1 to 30 The steps of the road resource selection method.