WO2022236683A1 - Transmission resource selection method and apparatus, device, and storage medium - Google Patents

Abstract

The present application relates to the field of mobile communications, and discloses a transmission resource selection method and apparatus, a device, and a storage medium. The method is applied to a terminal in V2X transmission, and comprises: determining a target transmission resource in a resource selection process, and processing the target transmission resource by using a partial listening-based re-evaluation and/or preemption process. In the method, the re-evaluation and/or preemption process of the transmission resource can be performed on the basis of partial listening.

Description

Transmission resource selection method, device, equipment and storage medium

This application claims the priority of the PCT application with the application number PCT/CN2021/092918 and the title of the invention "Method, device, equipment and storage medium for selecting transmission resources" filed on May 10, 2021, the entire contents of which are incorporated by reference incorporated in this application.

technical field

The present application relates to the field of mobile communication, and in particular to a method, device, equipment and storage medium for selecting transmission resources.

Background technique

In order to realize the direct communication between terminals in the vehicle networking (Vehicle to everything, V2X) system, the side link (Side Link, SL) transmission mode is introduced.

The resource selection of the sidelink in R16 (Release 16) supports the pre-emption (preemption) and re-evaluation (re-evaluation) mechanisms. Before performing sidelink transmission on the selected transmission resource, the terminal device needs to judge whether the selected transmission resource is still suitable for transmission according to the monitoring result, and if not, it needs to reselect the transmission resource. When the selected transmission resources are not reserved by other side transmissions, it is called re-evaluation; when the selected transmission resources have been reserved by other side transmissions, it is called pre-emption. According to the channel monitoring result, if there are other direct-connected transmissions occupying the selected or reserved transmission resources and meeting the configured priority and S-RSRP measurement conditions, the terminal device needs to reselect the transmission resources.

Contents of the invention

Embodiments of the present application provide a transmission resource selection method, device, device, and storage medium, which can perform re-evaluation and/or preemption of transmission resources based on partial monitoring. Described technical scheme is as follows:

According to one aspect of the present application, a method for selecting transmission resources is provided, which is applied to a terminal for V2X transmission, and the method includes:

Determining target transmission resources during the resource selection process;

The target transmission resource is processed using a partial intercept based re-evaluation and/or preemption procedure.

According to one aspect of the present application, a device for selecting a transmission resource is provided, and the device includes:

a selection module, configured to determine target transmission resources during the resource selection process;

A processing module, configured to process the target transmission resource by using a re-evaluation and/or preemption process based on partial monitoring.

According to one aspect of the present application, a terminal device is provided, and the terminal device includes: a processor and a transceiver connected to the processor; wherein,

The processor is configured to determine a target transmission resource in a resource selection process; and process the target transmission resource by using a re-evaluation and/or preemption process based on partial monitoring.

According to one aspect of the present application, a computer-readable storage medium is provided, wherein executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to realize the transmission described in the above aspect Resource selection method.

According to an aspect of an embodiment of the present application, a chip is provided, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on a computer device, it is used to realize the transmission resource described in the above aspect selection method.

According to one aspect of the present application, a computer program product is provided. When running on a processor of a computer device, the computer program product causes the computer device to execute the transmission resource selection method described in the above aspect.

The technical solutions provided by the embodiments of the present application at least include the following beneficial effects:

After the target transmission resource is selected, in the process of using the re-evaluation and preemption mechanism to monitor and determine the target transmission resource, the re-evaluation and preemption mechanism is implemented in a partial monitoring manner, thereby reducing the length of time the terminal device needs to monitor and saving Energy for end equipment.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

FIG. 1 is a schematic diagram of a system architecture provided by an exemplary embodiment of the present application;

FIG. 2 is a flowchart of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

FIG. 3 is a schematic diagram of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

FIG. 4 is a schematic diagram of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

FIG. 5 is a schematic diagram of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

FIG. 6 is a flowchart of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

FIG. 7 is a schematic diagram of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

FIG. 8 is a schematic diagram of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

FIG. 9 is a schematic diagram of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

FIG. 10 is a schematic diagram of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

FIG. 11 is a schematic diagram of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

Fig. 12 is a schematic diagram of a method for selecting transmission resources provided by an exemplary embodiment of the present application;

Fig. 13 is a structural block diagram of an apparatus for selecting transmission resources provided by an exemplary embodiment of the present application;

Fig. 14 is a schematic structural diagram of a communication device provided by an exemplary embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present application as recited in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only, and is not intended to limit the present disclosure. As used in this disclosure and the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and/or" as used herein refers to and includes any and all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in the present disclosure to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word "if" as used herein may be interpreted as "at" or "when" or "in response to a determination".

First, a brief introduction to the nouns involved in the embodiments of this application:

Vehicle to everything (V2X): It is the key technology of the future intelligent transportation system, mainly researching the vehicle data transmission scheme based on the 3GPP communication protocol. V2X communication includes Vehicle to Vehicle (V2V) communication, Vehicle to Infrastructure (V2I) communication and Vehicle to People (V2P) communication. V2X applications will improve driving safety, reduce congestion and vehicle energy consumption, and improve traffic efficiency.

Side Link (SL) transmission: It is a device-to-device communication method with high spectral efficiency and low transmission delay. The sidelink has two transmission modes. The first transmission mode is: the network device configures transmission resources for the terminal device, and the terminal device performs sidelink data transmission on the configured transmission resources. The second transmission mode is: the network device allocates a resource pool to the terminal device, and the terminal device selects one or more transmission resources from the resource pool for data transmission on the sidelink. Exemplarily, the terminal device may select transmission resources from the resource pool by listening, or select transmission resources from the resource pool by random selection.

In the second transmission mode, the terminal device needs to keep channel monitoring for resource selection. When resource selection is triggered, the terminal device determines the resource selection window and candidate resource set, removes candidate resources with strong interference expected in the resource selection window according to the channel monitoring results, and randomly selects the remaining candidate resource sets. In order to save energy, an effective method is to reduce the time for the terminal device to monitor the channel, and the terminal device only performs channel monitoring for part of the time. LTE (Long Term Evolution, long-term evolution)-V2X in R14 (Release 14) supports resource selection for partial monitoring, and defines the channel monitoring conditions that need to be met for resource selection for partial monitoring.

The current sidelink resource selection in R16 supports pre-emption (preemption) and re-evaluation (re-evaluation) mechanisms, which also rely on channel monitoring. Before performing direct connection transmission on the selected transmission resource, the terminal device needs to judge whether the selected transmission resource is still suitable for transmission according to the monitoring result, and if not, it needs to reselect the resource. When the selected transmission resources are not reserved by other transmissions, it is called re-evaluation; when the selected time-frequency resources have been reserved by other transmissions, it is called pre-emption. According to the channel monitoring results, if there are other direct transmissions occupying the selected transmission resources and satisfy the configured priority and S-RSRP measurement conditions, the user needs to reselect resources and give up the transmission on the originally selected transmission resources.

For resource selection based on partial monitoring in LTE V2x, the terminal device only selects part of the time units in the resource selection window. The terminal device only needs to monitor the selected part of the time units, and does not need to monitor every time unit. The terminal device is only allowed to determine the candidate resource set within this part of the time unit, that is, judge whether the transmission resource is occupied by other side transmissions according to the sensing result, and if so, exclude the time-frequency resource from the candidate resource set.

Resource re-evaluation and preemption are features introduced in R16. When the terminal device performs resource re-evaluation (re-evaluation) and pre-emption (pre-emption) judgment, it needs to re-judge whether the transmission resource to be sent still belongs to the candidate transmission resource resource. In order to reduce the length of time that terminal devices need to monitor, the concept of partial monitoring is introduced for resource re-evaluation and preemption to save energy.

Fig. 1 shows a block diagram of a communication system supporting sidelink transmission provided by an exemplary embodiment of the present application. The communication system may be a schematic diagram of a non-roaming 5G system architecture (Non-roaming 5G system architecture), and the system architecture may be applied to a vehicle networking (Vehicle to everything, V2X) service using D2D (Device to Device, device to device) technology.

The system architecture includes a data network (Data Network, DN), in which a V2X application server (Application Server) required by the V2X service is set. The system architecture also includes the 5G core network. The network functions of the 5G core network include: unified data management (Unified Data Management, UDM), policy control function (Policy Control Function, PCF), network exposure function (Network Exposure Function, NEF), Application function (Application Function, AF), unified data storage (Unified Data Repository, UDR), access and mobility management function (Access and Mobility Management Function, AMF), session management function (Session Management Function, SMF) and user plane Function (User Plane Function, UPF).

The system architecture also includes: a radio access network (New Generation-Radio Access Network, NG-RAN) and 4 terminals (namely, terminal 1 to terminal 4) shown as examples. Optionally, each terminal is configured with a V2X application (Application) or an application supporting SL transmission. One or more access network devices, such as base stations (gNBs), are set in the radio access network.

In this system architecture, the data network and the user plane function in the 5G core network are connected through the N6 reference point (Reference Point), and the V2X application server and the V2X application in the terminal are connected through the V1 reference point; the wireless access network and the 5G core network The AMF function and UPF function are connected, and the wireless access network is connected to Terminal 1 and Terminal 5 respectively through the Uu reference point; multiple terminals are connected to each other through the PC5 reference point, and multiple V2X applications are connected through the V5 reference point . The aforementioned reference points may also be referred to as "interfaces".

The "5G NR system" in the embodiments of the present disclosure may also be called a 5G system or an NR system, but those skilled in the art can understand its meaning. The technical solution described in the embodiments of the present disclosure can be applied to the 5G NR system, and can also be applied to the subsequent evolution system of the 5G NR system. The technical solutions described in the embodiments of the present disclosure can be applied to V2x applications, and can also be applied to other applications using sidelink transmission, such as public safety (public safety) and commercial applications.

Please refer to FIG. 2 , which shows a flowchart of a method for selecting transmission resources provided by an embodiment of the present application, and the method can be applied to the system architecture shown in FIG. 1 . The method includes the following steps.

Step 220, the terminal device determines the target transmission resource in the resource selection process.

When the terminal device works in the second mode of the sidelink above, the terminal device can obtain the first PSCCH (Physical Sidelink Control Channel) sent by other terminal devices by listening to the PSCCH (Physical Sidelink Control Channel) sent by other terminal devices. Side-travel control information, so as to know the resources reserved by other terminal devices. When a terminal device selects resources, it will exclude resources reserved by other terminal devices, thereby avoiding resource collisions.

As shown in Figure 3, the data packet of the terminal device arrives at time slot n, which triggers resource selection. The resource selection window (the second resource selection window 301 ) starts at time n+T1 and ends at time n+T2. Among them, 0≤T1≤T _proc,1 , T _proc,1 is the time for the terminal device to select resources and prepare data, when the subcarrier spacing is 15kHz, 30kHz, 60kHz, 120kHz, T _proc,1 corresponds to 3,5 , 9, and 17 time slots; T2 _min ≤ T2 ≤ packet delay budget (Packet Delay Budget, PDB). The value set of T2 _min is {1, 5, 10, 20}*2 ^μ time slots, where μ=0, 1, 2, 3 correspond to the cases where the subcarrier spacing is 15kHz, 30kHz, 60kHz, 120kHz respectively, The terminal device determines T2 _min from the value set according to the priority of the data to be sent. When T2 _min is greater than the data packet delay budget, T2=data packet delay budget, so as to ensure that the terminal device can send the data packet before the maximum delay of the data packet arrives.

The terminal device performs resource monitoring during the resource monitoring window (the second resource monitoring window 302 ) at time n-T0 to nT _{proc, 0} , and the value of T0 is 100 or 1100 milliseconds. T _{proc, 0} is the time for the terminal device to decode the control information. When the subcarrier spacing is 15 kHz, 30 kHz, 60 kHz, and 120 kHz, T _proc,0 is 1, 1, 2, and 4 time slots, respectively.

Taking full monitoring as an example, the resource selection process of the target transmission resource includes two steps: Step 1, the terminal device determines a candidate resource set; Step 2, the terminal device selects a target transmission resource from the candidate resource set.

Step1, the terminal device determines a candidate resource set.

The terminal device uses all available resources in the second resource selection window as resource set A.

If the terminal device sends data in some time slots in the second resource listening window, the terminal device will not listen on these time slots due to half-duplex restrictions, so the terminal device needs to send data corresponding to these time slots. The resources on the time slots in the second resource selection window are removed from the resource set A, so as to avoid resource conflicts with other terminal devices. Specifically, when determining the time slots in the second resource selection window corresponding to these time slots, the terminal device determines the time slots corresponding to these time slots in the selection window by using the value set of the resource reservation period field in the resource pool configuration used. slot, and exclude all resources on the corresponding slot from resource set A.

If the terminal device detects the PSCCH in the second resource listening window, measure the RSRP (Reference Signal Received Power, reference signal received power) of the PSCCH or the PSSCH (Physical Sidelink Shared Channel, physical direct connection shared channel) scheduled by the PSCCH ), if the measured RSRP is greater than the SL-RSRP threshold, and according to the resource reservation information in the sideline control information transmitted in the PSCCH, it is determined that the reserved resources are within the second resource selection window, then from the resource set A Excludes its reserved resources. If the remaining resources in resource set A are less than X% of all resources before resource exclusion in resource set A, raise the SL-RSRP threshold by 3db and execute Step 1 again. The above possible values of X are 20, 35, 50, and the terminal device determines the parameter X from the value set according to the priority of the data to be sent. At the same time, the above SL-RSRP threshold is related to the priority carried in the PSCCH detected by the terminal device and the priority of the data to be sent by the terminal device. The terminal device uses the remaining resources in resource set A after resource exclusion as a candidate resource set.

Step2, the terminal device selects a target transmission resource from the candidate resource set.

After resource exclusion, the terminal device randomly selects several resources from the candidate resource set as the resources used by the terminal device for initial transmission and retransmission.

In Step2, resource selection needs to meet some constraints in the time domain, mainly including the following two points:

1) After removing some exceptions, the terminal device should enable the selected resource to be indicated by the previous resource of the resource, that is, the time domain interval between the two is less than 32 time slots. The exceptions above include that the terminal device cannot select a resource that satisfies the time domain restriction from the candidate resource set after resource exclusion, and the time domain restriction is broken due to resource preemption or congestion control and other reasons after resource selection is completed.

2) The terminal device should guarantee any two selected time-frequency resources. If the previous transmission resource requires HARQ (Hybrid Automatic Repeat reQuest, hybrid automatic repeat request) feedback, the two are separated by at least Z in the time domain. The duration Z includes the time for the terminal device to wait for the HARQ feedback from the receiving end and the time for preparing to retransmit data. When the resource selection cannot satisfy the time-domain restriction, depending on the terminal implementation, some retransmission resources may be abandoned or HARQ feedback may be deactivated for some transmission resources.

Exemplarily, the target transmission resource determined in the resource selection process in step 220 may be:

1) A set of candidate resources selected by the terminal device from the second resource selection window before performing resource removal (for example, the target transmission resource includes Y candidate time units). The terminal device selects a candidate resource set from the second resource selection window, conducts interception based on the candidate resource set by means of partial monitoring to obtain an interception result, removes resources from the candidate resource set based on the interception result, and removes resources from the candidate resource set The final selected transmission resource is selected from the resource set.

2) Before performing resource removal, the terminal device selects candidate transmission resources from the second resource selection window, and performs periodic resource reservation based on the candidate resource set (for example, the target transmission resource includes: time for Y candidates units, and Y*k reserved time units obtained by performing periodic resource reservation based on Y candidate time units). The terminal device selects candidate transmission resources from the second resource selection window, performs periodic resource reservation based on the candidate transmission resources to obtain reserved transmission resources, removes resources from the candidate resources based on the interception results, and removes resources from the candidate resources after resource removal Select the final transmission resource. The target transmission resources include the above-mentioned candidate transmission resources, and a candidate resource set composed of reserved transmission resources of the candidate transmission resources.

3) A set of available resources obtained by the terminal device after resource removal. The terminal device removes resources from the transmission resources in the second resource selection window based on the listening result, obtains a set of available resources after resource removal, and selects the final selected transmission resource from the set of available resources.

4) Available transmission resources obtained by the terminal device after resource removal, and an available resource set obtained by performing periodic resource reservation based on the available transmission resources. The terminal device removes resources from the transmission resources in the second resource selection window based on the listening result, obtains an available resource set after resource removal, performs periodic resource reservation based on the available resource set to obtain reserved transmission resources, and obtains reserved transmission resources from the available resource set The final selected transport resource is selected.

5) A set of selected transmission resources finally selected by the terminal device after the resource selection process (for example, the target transmission resource includes B time units). The terminal device performs resource removal according to the interception result, and selects the final selected transmission resource set from the remaining transmission resources after the resource removal.

6) The selected transmission resource finally selected by the terminal device through the resource selection process, and the selected transmission resource set obtained by performing periodic resource reservation based on the selected transmission resource (for example, the target transmission resource includes: B time units, and B*k reserved time units obtained by performing periodic resource reservation based on B time units). The terminal device performs resource removal according to the interception result, selects the final selected transmission resource from the remaining transmission resources after resource removal, performs periodic resource reservation based on the selected transmission resource, and finally obtains the selected transmission resource, A set of selected transmission resources composed of reserved transmission resources of the selected transmission resources.

In step 240, the terminal device processes the target transmission resource by using a re-evaluation and/or preemption process based on partial monitoring.

NR-V2X supports the Re-evaluation mechanism. After the terminal device completes resource selection, resources that have been selected but not indicated by sending sideline control information may still be reserved by other terminal devices, resulting in resource collisions. Aiming at this problem, a re-evaluation mechanism is proposed, that is, after completing resource selection, the terminal device still continues to listen to the side traffic control information, and re-evaluates the selected but not indicated resources at least once.

As shown in FIG. 4, resource w, resource x, resource y, resource z, resource u, and resource v are target transmission resources (set of selected transmission resources) selected by the terminal device in time slot n, and resource x is located in time slot m. For resource y and resource z for which the terminal device is about to send sideline control information on resource x for the first indication (resource x has been indicated by the sideline control information in resource w before), the terminal device executes the above at least once in time slot m-T3 Step 1 performs re-evaluation, that is, determines the first resource selection window 303 and the first resource listening window 304, and performs resource exclusion on the resources in the first resource selection window 303 to obtain a candidate resource set. If resource y or resource z is not in the candidate resource set, the terminal device performs the above Step 2 to reselect time-frequency resources in resource y and resource z that are not in the candidate resource set, and can also reselect any time-frequency resources that have been selected but have not been controlled by the sending side The resources indicated by the information, for example, any number of resources among resource y, resource z and resource v. The above T3 is equal to T _proc,1 . In FIG. 4 , the dotted arrow indicates that the sidelink control information indication is about to be sent, and the realization arrow indicates that the sidelink control information indication has already been sent.

NR-V2X supports the resource preemption (Pre-emption) mechanism. In NR-V2X, the conclusions about the resource preemption mechanism are described from the perspective of the preempted terminal device. After the resource selection is completed, the terminal device still continues to listen to the sidelink control information. If the time-frequency resource that has been selected and indicated by sending the sideline control information meets the following three conditions, it means that the selected resource is used by other terminal devices. Preemption, the terminal device triggers resource reselection for the selected resource:

Condition 1, the resources reserved in the intercepted sidewalk control information overlap with the resources selected and indicated by the terminal device, including full overlap and partial overlap.

Condition 2, the RSRP of the PSCCH corresponding to the sidelink control information detected by the terminal device or the RSRP of the PSSCH scheduled by the PSCCH is greater than the SL-RSRP threshold.

Condition 3, the priority carried in the intercepted sidewalk control information is higher than the priority of the data to be sent by the terminal device, and other configuration conditions are met.

Exemplarily, The associated priority prio _RX satisfies one of the following conditions (the associated priority satisfies one of the following conditions):

SL-PreemptionEnable is provided and is equal to'enabled'and prio _TX >prio _RX (the parameter SL-PreemptionEnable is configured and enabled, and the sending priority prio _TX is higher than the receiving priority prio _RX );

SL-PreemptionEnable is provided and is not equal to'enabled', and prio _RX <prio _pre and prio _TX >prio _RX (the parameter SL-PreemptionEnable is configured and is in the disabled state, and the receiving priority prio _RX is less than the configured or pre The configured priority is prio _pre , and the sending priority prio _TX is higher than the receiving priority prio _RX ).

As shown in FIG. 5 , resources w, x, y, z, and v are time-frequency resources selected by the terminal device in time slot n, and resource x is located in time slot m. For resource x and resource y indicated by the sidelink control information that the terminal device is about to send in time slot m and that have been indicated by the sidelink control information sent by the terminal device before, the terminal device performs the above Step 1 at least once in time slot m-T3, That is, the first resource selection window 303 and the first resource listening window 304 are determined, and resources in the first resource selection window 303 are excluded to determine a candidate resource set. If resource x or y is not in the candidate resource set (satisfy the above condition 1 and condition 2), it is further judged whether resource x is caused by an indication of sideline control information with high priority (higher priority than the data to be sent by the terminal device) Or y is not in the candidate resource set (satisfies the above condition 3), if yes, the terminal device executes step 2 to reselect the time-frequency resources satisfying the above three conditions among resource x and resource y. In addition, when resource reselection is triggered, the terminal device may reselect any resource that has been selected but not indicated by sending sideline control information, such as any number of resources z and v. The aforementioned T3 is equal to T _proc,1 .

For the above-mentioned re-evaluation (R-evaluation) mechanism and/or pre-emption (Pre-emption) mechanism, when re-evaluating the resources in the first resource selection window corresponding to time slot m, the method of Step 1 needs to be adopted according to the Intercept sideline control information and corresponding RSRP measurement in a resource listening window Remove resources occupied by other terminal devices from the first resource selection window to obtain a candidate resource set, and then determine whether the selected resource is included in the candidate resource set , if it is not included, it means that the selected resource is preempted, triggering resource reselection; if it is included, it means that the selected resource is not preempted. This method needs to listen to most of the time-frequency resources in the first resource listening window (except the time slot for the terminal device to send data), and the terminal device needs to listen for a long time, which consumes a lot of energy.

However, in the method of this embodiment, when re-evaluating and/or preempting time slot m, partial monitoring is used, that is, some candidate time units are selected in the first resource selection window, and then selected in the first resource listening window Partial interception is performed on the time-frequency resources corresponding to the candidate time units, and it is determined whether the candidate time units are occupied by other terminal devices according to the interception results. The terminal device does not need to listen to all the time-frequency resources in the first resource listening window. During the re-evaluation and/or preemption process of the selected resources, the listening time of the terminal device is reduced, and the capacity of the terminal device is reduced. consumption.

Exemplarily, the timeslot and time unit mentioned in the embodiments of the present application may refer to physical time, such as 1us (microsecond), 1ms (millisecond), 1symbol (symbol), 1slot (time slot), 1subframe (subframe Frame), 1frame (frame); can also refer to logical time, for example, define the set of all time domain resources that can be used as side communication as a logical time set, or define all time domain resources in the Tx (Transmit, transmit) resource set Defined as a collection of logical times; and maps physical time into a collection of logical times.

To sum up, the method provided in this embodiment implements the re-evaluation and preemption mechanism in the process of using the re-evaluation and preemption mechanism to monitor and determine the target transmission resource after the target transmission resource is determined. , thereby reducing the length of time that the terminal equipment needs to monitor, and saving the energy of the terminal equipment.

Exemplarily, when the terminal device re-evaluates and/or preempts the time-frequency resources in the time unit u based on partial monitoring, it selects a candidate time unit from the re-evaluated and/or preempted first resource selection window , re-evaluate and/or preempt candidate time units based on partial listening.

Please refer to FIG. 6 , which shows a flow chart of a method for selecting transmission resources provided by an embodiment of the present application, and the method can be applied to the system architecture shown in FIG. 1 . The method includes the following steps.

Step 220, the terminal device determines the target transmission resource in the resource selection process.

Exemplarily, the target transmission resources determined by the terminal device in the resource selection phase include the transmission resources within the time unit u. For example, the terminal device determines the target transmission resource in the time unit n, and the target transmission resource includes the transmission resource in the time unit u.

Exemplarily, the time unit u can be a time unit, such as the time unit m where the resource x of the pre-emption check (preemption check) is located in Figure 4; or the time unit u can be multiple time units, as shown in Figure 4 The time unit a where the resource y of the re-evaluation (re-evaluation) is located, and the time unit b where the resource z is located; it is also possible to combine the pre-emption check and re-evaluation, then the time unit u includes the time unit m, Time unit a and time unit b.

Step 241, the terminal device performs a re-evaluation and/or preemption process on the resources in the target transmission resource, and selects candidate time units from the first resource selection window, and the candidate time units include at least time unit u; where time unit u is the time unit that needs to be executed The time unit in which the resource of the re-evaluation and/or preemption process is located;

Wherein, the first resource selection window is a resource selection window corresponding to a re-evaluation and/or preemption process based on partial monitoring.

Exemplarily, the time unit u includes at least two time units;

The candidate time units selected in the re-evaluation and/or preemption process based on partial monitoring of different resources corresponding to at least two time units are different;

or,

The candidate time units selected in the partial monitoring-based re-evaluation and/or preemption process of different resources corresponding to at least two time units are the same.

When the candidate time units selected in the re-evaluation and/or preemption process based on partial monitoring of different resources corresponding to at least two time units are different, the re-evaluation and/or preemption process based on partial monitoring of at least two time units are carried out separately;

When the candidate time units selected in the re-evaluation and/or preemption process based on partial monitoring of different resources corresponding to at least two time units are the same, the re-evaluation and/or preemption process based on partial monitoring of at least two time units The process of re-evaluation and/or preemption based on partial monitoring of at least two time units is performed simultaneously (or called "merging"), or is performed separately.

Exemplarily, the terminal device performs the re-evaluation and/or preemption process at the time unit p, and the time unit set of all resources that need to perform the re-evaluation and/or preemption process at the time unit p is W, when W includes multiple In one time unit,

Example 1: The terminal device re-evaluates and/or preempts resources corresponding to different time units in W; for example, time unit W contains time units corresponding to resource x, resource y, and resource z; the terminal device first performs resource x Execute re-evaluation and/or preemption process (i.e. set time unit u = time unit of resource x), and then perform re-evaluation and/or preemption process on resource y (i.e. reset time unit u = time unit of resource y) , and finally perform re-evaluation and/or preemption process on resource z (that is, finally set time unit u=time unit of resource y);

That is, different resources are evaluated separately, as shown in Figure 4, resource x, resource y, and resource z are evaluated separately, and the candidate time units selected for each evaluation in the separate evaluation may be different. Exemplarily, the time unit u includes W time units, and W is a positive integer; the terminal device selects a candidate time unit for the target transmission resource corresponding to each time unit in the W time units, and performs re-evaluation based on partial monitoring and /or preemption process, w is a positive integer not greater than W.

or,

Example 2: The terminal device separately executes the resources that need to be re-evaluated and the resources that need to be preempted; for example, the time unit W contains time units corresponding to resource x, resource y, and resource z, and the preemption process needs to be performed on resource x. However, resource y and resource z need to be re-evaluated; terminal devices can respectively perform preemption on resource x (that is, set u=the time resource of resource x), and perform re-evaluation on resource x and y (that is, set u=resource y , the set of time units of z);

That is, different resources are evaluated separately according to the need to perform re-evaluation or preemption. As shown in Figure 4, resource x needs to perform preemption evaluation, resource y, and resource z need to perform re-evaluation; terminal devices perform preemption evaluation on resource x respectively, and resource y and resource z perform re-evaluation; candidate time units selected in preemption evaluation for resource x differ from candidate time units selected in re-evaluation for resources y and resource z; candidate time units selected in re-evaluation for resource y and resource z The time units are exactly the same.

or,

Example 3: The terminal device performs a re-evaluation and/or preemption process on all resources corresponding to time units within the time unit W (that is, setting time unit u = the set of time units corresponding to resources x, y, and z);

That is, different resources are evaluated together. As shown in Figure 4, resource x, resource y, and resource z are all evaluated in one time unit, and time unit u includes all time units corresponding to x, y, and z. For resource x, resource The candidate time units selected in re-evaluation and/or preemption for resource z are exactly the same. Exemplarily, the time unit u includes W time units, and W is a positive integer; based on the partial interception results corresponding to the W time units among the candidate time units, the terminal device re-evaluates W time units based on partial interception and/or or preemptive process.

Exemplarily, the time unit u may be understood as a time unit set u, and the time unit set u includes at least one time unit.

Exemplarily, the terminal device can use the re-evaluation and/or preemption process based on partial monitoring at least in multiple situations.

Case 1: In the case of using the resource selection process based on partial monitoring, the terminal device uses the re-evaluation and/or preemption process based on partial monitoring to process the target transmission resource.

That is, when the terminal device adopts the resource selection process based on partial monitoring in the resource selection phase, the method of partial monitoring is also used in the process of reevaluating and/or preempting the selected resources or reserved resources.

Situation 2: In the case of using the resource selection process based on full monitoring or other non-partial monitoring, the terminal device uses the re-evaluation and/or preemption process based on partial monitoring to process the target transmission resource.

That is, when the terminal adopts a resource selection process based on full monitoring in the resource selection phase, it may also use a partial monitoring method during the process of reevaluating and/or preempting selected resources or reserved resources.

At this time, the terminal device can trigger the re-evaluation and/or preemption process based on partial monitoring based on the following two methods:

1) When the configuration information is configured to use partial monitoring, the terminal device uses the re-evaluation and/or preemption process based on partial monitoring to process the target transmission resource; wherein, the configuration information includes: the first At least one of configuration information, second configuration information sent by a higher layer, and pre-configuration information.

2) When the attribute of the data to be transmitted satisfies the trigger condition, the terminal device uses a re-evaluation and/or preemption process based on partial monitoring to process the target transmission resource.

For example, the terminal device judges whether to use the re-evaluation and/or preemption process based on partial listening based on base station configuration, high-layer configuration or pre-configuration information.

For another example, the terminal device judges whether to use the re-evaluation and/or preemption process based on partial monitoring based on attributes such as the priority of the data to be transmitted and the cast type (communication type). The cast type includes one of unicast (unicast), groupcast (multicast), and broadcast (broadcast).

Exemplarily, the terminal device selects a candidate time unit from the re-evaluated and/or preempted first resource selection window, where the candidate time unit includes at least time unit u; based on the partial interception results corresponding to the candidate time unit, the target transmission resource is Partial listening based re-evaluation and/or preemption process. Wherein, the first resource selection window may be a resource selection window corresponding to the time slot m when the terminal triggers a re-evaluation and/or preemption process based on partial monitoring at the time slot m. The terminal device needs to listen on a group of time units corresponding to the candidate time units.

For example, as shown in FIG. 4 , when re-evaluation and/or preemption are performed on time slot m, the first resource selection window is m-T3+T1 to m-T3+T2. Select the time unit m corresponding to resource x and the time unit a corresponding to resource y from the first resource selection window as candidate time units, on the time domain resources corresponding to time unit m and time unit a in the first resource listening window Listen to the side travel control information to determine whether the time unit m and time unit a are preempted by other terminal devices.

The time domain position and number of candidate time units may be determined by the terminal device itself. The terminal device may obtain the minimum number threshold of candidate time units by receiving access network configuration information or reading pre-configured information. The candidate time unit may only include time unit u, or may include multiple time units including time unit u.

Exemplarily, the time unit u may be a set of time units. As shown in Figure 4, at the time unit m-T3, the pre-emption check (preemption check) for the resource x of the time unit m, the re-evaluation (re-evaluation) for the resource y of the time unit a, and the time Re-evaluation of resource z of unit b. The candidate time units may only include time unit m, time unit a or time unit b, or may include multiple time units including time unit m, time unit a and time unit b.

Exemplarily, the terminal device selects L time units in the first resource selection window to obtain candidate time units, where L is a positive integer.

The value of L is equal to or not less than a preset value, and the preset value is a value configured or preconfigured by the base station; or L=the number of time units in the time unit u; the candidate time units include at least the time unit u.

That is, L is equal to the number of time units in the time unit u; or, L is a positive integer not less than a first threshold, and the first threshold is a value pre-configured or configured by a network device. Or, L is equal to the number of transmission resources in the time unit u.

To sum up, the method provided by this embodiment selects candidate time units from the first resource selection window when performing re-evaluation and/or preemption based on partial monitoring, and the candidate time units include at least time units u, the time unit u is the time unit corresponding to the resources that need to perform the re-evaluation and/or preemption process, based on the partial interception results of the candidate time units, re-evaluation and/or preemption based on partial interception are performed on the target transmission resource, In turn, the listening time of the terminal device is reduced, and the energy consumption of the terminal device in the process of re-evaluation and/or preemption is reduced.

Exemplarily, when selecting candidate time units, the selection manner of the L time units is related to the manner of resource selection in the resource selection stage.

The following provides an exemplary embodiment of selecting L time units from the first resource selection window as candidate time units when the following four resource selection methods are adopted.

Situation (1): In the resource selection phase, the terminal device uses resource selection based on partial monitoring, selects Y time units from the second resource selection window as candidate time units (target transmission resources) in Step 1, and performs periodic resource selection. For reservation, listen to and remove resources for Y time units in the second resource listening window, and then select the selected transmission resources from the candidate time units after resource removal in Step2.

Situation (2): In the resource selection phase, the terminal device uses resource selection based on partial monitoring. In Step 1, Y time units are selected from the second resource selection window as candidate time units (target transmission resources), and periodic resource selection is not performed. For reservation, listen to and remove resources for Y time units in the second resource listening window, and then select the selected transmission resources from the candidate time units after resource removal in Step2.

Situation (3): In the resource selection phase, the terminal device determines B time units from the second resource selection window as target transmission resources (selected transmission resources) in Step2, and performs periodic resource reservation.

Situation (4): In the resource selection phase, the terminal device determines B time units from the second resource selection window as target transmission resources (selected transmission resources) in Step2, and does not perform periodic resource reservation.

Situation (1):

When the terminal device selects Y time units from the second resource selection window to form a candidate resource set and performs periodic resource reservation, the time unit u includes time units {(Sy1+k*T),...,(Syu +k*T)}; here y1<...<yu;

Wherein, the second resource selection window is the resource selection window corresponding to the resource selection process, Sy is the yth time unit in Y time units, the resource reservation period of periodic resource reservation is T, and k is the th time unit after resource selection k resource reservation periods, y1...yu is a positive integer not greater than Y, Y is a positive integer, and T is a positive number. Exemplarily, y1 is the smallest time unit in the time unit u.

Optionally, the value of L is related to Y time units.

Optionally, L is equal to Y-y1+1; or, L is greater than or equal to Y-y1+1; or, L is equal to Y; or, L is greater than or equal to Y.

Optionally, the L time units include the time unit (Sy1+k*T) corresponding to the time unit u to the last time unit (SY+k*T) in the kth resource reservation period.

Exemplarily, the candidate resource set (target transmission resource) includes Y time units selected by the terminal device from the second resource selection window, and Y*k time units obtained by performing periodic resource reservation based on the Y time units.

When the terminal device selects the time-frequency resource of time unit n, resource selection based on partial monitoring is used. During resource selection, Y time units {S1,...,SY} are selected in the second resource selection window to form a candidate resource set. And a periodic resource reservation is carried out, and the resource reservation period is T; then u={Sy1+k*T,...,Syu+k*T}; Sy1...Syu is the y1...yuth in Y time units Time unit and y1<...<yu, k is the cycle number of the time reservation period where the time unit u is currently located, and k is a non-negative integer.

In an optional example, L time units include at least time units {Sy1+k*T, S(y1+1)+k*T,...,SY+k*T}; or L candidate times The unit contains at least the time unit u.

For example, as shown in Figure 7, the terminal device selects three time units {S1, S2, S3} at time unit n to form a candidate resource set, that is, Y=3, and performs periodic resource reservation. The reserved resource reservation period is T, and the resource reservation period of periodic resource reservation is once, that is, the value range of k is 0 or 1.

As shown in FIG. 7 , when the time unit u is re-evaluated and/or preempted, at this time, the time unit u includes the time unit S3, that is, y takes 3 and k takes 0. Then (Y-y+1)=(3-3+1)=1, L=1; or, L≥1; or, L=3; or, L≥3.

L time units include time unit S3, and since S3 is the last time unit in the 0th resource reservation period, L at least includes time unit S3.

For example, as shown in Figure 8, the terminal device selects three time units {S1, S2, S3} at time unit n to form a candidate resource set, that is, Y=3, and performs periodic resource reservation. The reserved resource reservation period is T, and the resource reservation period of periodic resource reservation is once, that is, the value range of k is 0 or 1.

As shown in Figure 8, when the time unit u is re-evaluated and/or preempted, at this time, the time unit u includes time unit S1+T, time unit S2+T and time unit S3+T, that is, y takes 1, k takes 1. Then (Y-y+1)=(3-1+1)=3, L=3; or, L≥3; or, L=3; or, L≥3.

The L time units include time unit S1+T, and time unit S2+T and time unit S3+T after time unit S1+T in the first resource reservation period. That is, the L time units at least include the time unit S1+T, the time unit S2+T and the time unit S3+T.

Alternatively, the L time units at least include the time unit S1+T.

In another optional example, the L time units include the time units within the first resource selection window among the Y time units in the kth resource reservation period.

That is, the L time units include the time unit of the kth resource reservation period within the first resource selection window among the Y time units. Exemplarily, the kth resource reservation period refers to the resource reservation period in which the first time unit belonging to the Y time units in the first resource selection window is located.

For example, Y time units include S1, S2, S3, and S1+T, S2+T, S3+T, S1+2T, S2+2T, S3+2T obtained by performing two periodic reservations. When the first resource selection window includes S2+T, S3+T, S1+2T, S2+2T, and S3+2T, since the first time unit belonging to Y time units in the first resource window is S2+T , then k is 1, and the L time units include the time units S2+T and S3+T of the first resource reservation period in the first resource window among the above nine time units.

In another optional example, the L time units include time units within the first resource selection window among the Y time units.

That is, the L time units include time units within the first resource selection window among the Y time units. Exemplary,

For example, Y time units include S1, S2, S3, and S1+T, S2+T, S3+T, S1+2T, S2+2T, S3+2T obtained by performing two periodic reservations. When the first resource selection window includes S2+T, S3+T, S1+2T, S2+2T, and S3+2T, the L time units include the time units located in the first resource window among the above-mentioned 9 time units S2+T, S3+T, S1+2T, S2+2T, S3+2T.

Situation (2):

When the terminal device selects Y time units from the second resource selection window to form a candidate resource set and does not perform periodic resource reservation, the time unit u is equal to the time unit {Sy1,...,Syu}, y1<...<yu ;

Wherein, the second resource selection window is the resource selection window corresponding to the resource selection process, Sy1,...,Syu are the y1,...,yuth time units in Y time units, and y1,...,yu are positive integers not greater than Y , Y is a positive integer.

Optionally, the value of L is related to Y time units.

Optionally, L is equal to Y-y1+1; or, L is greater than or equal to Y-y1+1; or, L is equal to Y; or, L is greater than or equal to Y.

In an optional example, the L time units include the time unit Sy1 corresponding to the time unit u in the candidate resource set to the last time unit SY in the candidate resource set.

Exemplarily, the candidate resource set (target transmission resource) includes Y time units selected by the terminal device from the second resource selection window.

Optionally, the L time units include at least the time unit {Sy1, S(y1+1), . . . , SY}; or the L candidate time units include at least the time unit u.

When the terminal device selects the time-frequency resource of time unit n, resource selection based on partial monitoring is used. During resource selection, Y time units {S1,...,SY} are selected in the second resource selection window to form a candidate resource set. And there is no periodic resource reservation; then u={Sy1,...,Syu}; Sy1,...,Syu is the y1,...,yuth time unit within Y time units.

For example, as shown in FIG. 9 , the terminal device selects three time units {S1, S2, S3} at time unit n to form a candidate resource set, that is, Y=3, and no periodic resource reservation is performed.

As shown in FIG. 9 , when time unit u is re-evaluated and/or preempted, at this time, time unit u includes time unit S2 and time unit S3 , that is, y is 2. Then (Y-y+1)=(3-2+1)=2, L=2; or, L≥2; or, L=3; or, L≥3.

The L time units include the time unit S2 and the time unit S3 after the time unit S2 in the candidate resource set. That is, the L time units at least include the time unit S2 and the time unit S3.

Alternatively, the L time units at least include the time unit S2.

In another optional example, the L time units include time units within the first resource selection window among the Y time units.

For example, Y time units include S1, S2, and S3. When the first resource selection window includes S2 and S3, the L time units include the time units S2 and S3 located in the first resource window among the above three time units.

Situation (3):

In the case that the terminal device determines B time units from the resource selection process to constitute the target transmission resource and performs periodic resource reservation, the time unit u includes time units {(Rb1+k*T),...,(Rbu+ k*T)},b1<...<bu;

Among them, Rb1...Rbu is the b1...buth time unit in the B time units, the resource reservation period of periodic resource reservation is T, k is the kth resource reservation period after resource selection, and b1...bu is A positive integer not greater than B, where B is a positive integer and T is a positive number.

Optionally, the value of L is related to B time units.

Optionally, L is equal to B-b1+1; or, L is greater than or equal to B-b1+1; or, L is equal to B; or, L is greater than or equal to B.

In an optional example, the L time units include the time unit (Rb1+k*T) corresponding to the time unit u to the last time unit (RB+k*T) in the kth resource reservation period.

Exemplarily, the target transmission resource includes B time units selected by the terminal device through a resource selection process, and B*k time units obtained by performing periodic resource reservation based on the B time units.

When the terminal device selects the time-frequency resource of time unit n, resource selection based on partial monitoring is used. During resource selection, B time units {R1,...,RB} are selected in the second resource selection window to form target transmission resources. And periodic resource reservation is carried out, the resource reservation period is T; then u={Rb1+k*T,...,Rbu+k*T}, b1<...<bu; Rb1,...,Rbu is B time The b1,...,bu-th time unit in the unit, k is the cycle number of the time reservation period where the time unit u is currently located, and k is a non-negative integer.

For example, as shown in Figure 10, the terminal device selects three time units {R1, R2, R3} at time unit n to form a candidate resource set, that is, B=3, and performs periodic resource reservation. The reserved resource reservation period is T, and the resource reservation period of periodic resource reservation is once, that is, the value range of k is 0 or 1.

As shown in FIG. 10 , when re-evaluation and/or preemption are performed, at this time, the time unit u includes the time unit R3, that is, b takes 3 and k takes 0. Then (B-b+1)=(3-3+1)=1, L=1; or, L≥1; or, L=3; or, L≥3.

L time units include time unit R3, and since R3 is the last time unit in the 0th resource reservation period, L at least includes time unit R3.

For example, as shown in Figure 11, the terminal device selects three time units {R1, R2, R3} at time unit n to form a candidate resource set, that is, B=3, and performs periodic resource reservation. The reserved resource reservation period is T, and the resource reservation period of periodic resource reservation is once, that is, the value range of k is 0 or 1.

As shown in FIG. 11 , when the time unit u is re-evaluated and/or preempted, at this time, the time unit u is the time unit R1+T, that is, b takes 1 and k takes 1. Then (B-b+1)=(3-1+1)=3, L=3; or, L≥3; or, L=3; or, L≥3.

The L time units include the time unit R1+T corresponding to the time unit u, and the time unit R2+T and the time unit R3+T after the time unit R1+T in the first resource reservation period. That is, L time units at least include time unit R1+T, time unit R2+T and time unit R3+T.

Alternatively, the L time units at least include the time unit R1+T corresponding to the time unit u.

In another optional example, the L time units include the time units in the first resource selection window among the B time units in the kth resource reservation period.

That is, the L time units include the time unit of the kth resource reservation period within the first resource selection window among the B time units. Exemplarily, the kth resource reservation period refers to the resource reservation period in which the first time unit belonging to the B time units in the first resource selection window is located.

For example, B time units include R1, R2, R3, and R1+T, R2+T, R3+T, R1+2T, R2+2T, R3+2T obtained by performing two periodic reservations. When the first resource selection window includes R2+T, R3+T, R1+2T, R2+2T, R3+2T, since the first time unit belonging to B time units in the first resource window is R1+T , then k is 1, and the L time units include the time units R2+T and R3+T of the first resource reservation period in the first resource window among the above nine time units.

In another optional example, the L time units include time units within the first resource selection window among the B time units.

For example, B time units include R1, R2, R3, and R1+T, R2+T, R3+T, R1+2T, R2+2T, R3+2T obtained by performing two periodic reservations. When the first resource selection window includes R2+T, R3+T, R1+2T, R2+2T, R3+2T, the L time units include the time units located in the first resource window among the above nine time units R2+T, R3+T, R1+2T, R2+2T, R3+2T.

Situation (4):

In the case that the terminal device determines B time units to constitute the target transmission resource from the resource selection process and does not perform periodic resource reservation, the time unit u is equal to the time unit {Rb1,...,Rbu}, b1<...<bu;

Among them, Rb1,...,Rbu are the b1,...,bu-th time units in B time units, b1,...,bu are positive integers not greater than B, and B is a positive integer.

Optionally, the value of L is related to B time units.

Optionally, L is equal to B-b1+1; or, L is greater than or equal to B-b1+1; or, L is equal to B; or, L is greater than or equal to B.

Optionally, the L time units include the time unit Rb1 corresponding to the time unit u in the target transmission resource to the last time unit RB in the target transmission resource.

In an optional example, L time units include at least time units {Rb1+k*T, R(b1+1)+k*T,...,RB+k*T}; or L candidate times The unit contains at least the time unit u.

Exemplarily, the target transmission resource includes B time units selected by the terminal device through a resource selection process.

When the terminal device selects the time-frequency resource of time unit n, resource selection based on partial monitoring is used. During resource selection, B time units {R1,...,RB} are selected in the second resource selection window to form target transmission resources. And there is no periodic resource reservation; then u={Rb1,...,Rbu}, b1<...,<bu; Rb is the b1,...buth time unit within the B time units.

For example, as shown in FIG. 12 , the terminal device selects three time units {R1, R2, R3} at time unit n to form a candidate resource set, that is, B=3, and no periodic resource reservation is performed.

As shown in FIG. 12 , when re-evaluation and/or preemption are performed, the time unit u includes time unit R2 and time unit R3 , that is, b takes 2. Then (B-b+1)=(3-2+1)=2, L=2; or, L≥2; or, L=3; or, L≥3.

The L time units include a time unit R2 and a time unit R3 after the time unit R2 in the target transmission resource. That is, the L time units at least include the time unit R2 and the time unit R3.

Alternatively, the L time units at least include the time unit R2.

In another optional example, the L time units include time units within the first resource selection window among the B time units.

For example, B time units include R1, R2, and R3. When the first resource selection window includes R2 and R3, the L time units include the time units R2 and R3 located in the first resource window among the above three time units.

Fig. 13 shows a structural block diagram of an apparatus for selecting transmission resources provided by an exemplary embodiment of the present application. The apparatus can be implemented as a terminal device, or can be implemented as a part of a terminal device. The apparatus includes:

A selection module 401, configured to determine a target transmission resource during the resource selection process;

The processing module 402 is configured to process the target transmission resource by using a re-evaluation and/or preemption process based on partial monitoring.

In an optional embodiment, the processing module 402 is configured to, in the case of using the resource selection process based on the partial monitoring, use a re-evaluation and/or preemption process based on the partial monitoring to transfer the resources are processed.

In an optional embodiment, the processing module 402 is configured to use a re-evaluation and/or preemption process based on partial monitoring to allocate the target transmission resources to process;

Wherein, the configuration information includes: at least one of first configuration information sent by the access network device, second configuration information sent by a higher layer, and pre-configuration information.

In an optional embodiment, the processing module 402 is configured to use a re-evaluation and/or preemption process based on partial monitoring to perform deal with.

In an optional embodiment, the target transmission resources include: transmission resources within the time unit u;

The processing module 402 is configured to select a candidate time unit from the first resource selection window, where the candidate time unit includes at least the time unit u;

The processing module 402 is configured to re-evaluate and/or preempt the target transmission resource based on the partial intercept based on the partial intercept result corresponding to the candidate time unit;

Wherein, the first resource selection window is a resource selection window corresponding to a re-evaluation and/or preemption process based on the partial monitoring.

In an optional embodiment, the processing module 402 is configured to select L time units in the first resource selection window to obtain the candidate time units, where L is a positive integer.

In an optional embodiment, L is equal to the number of time units in the time unit u;

or,

L is a positive integer not less than a first threshold, where the first threshold is a pre-configured value or a value configured by a network device.

In an optional embodiment, when Y time units are selected in the second resource selection window to form a candidate resource set and periodic resource reservation is performed, the time unit u includes a time unit (Sy1+k* T) to time unit (Syu+k*T);

Wherein, the second resource selection window is a resource selection window corresponding to the resource selection process, Sy1 is the y1th time unit in the Y time units, and Syu is the yuth time unit in the Y time units Time unit, the resource reservation period of the periodic resource reservation is T, k is the kth resource reservation period after the resource selection, y1 and yu are positive integers not greater than Y, and Y is a positive integer, T is a positive number, u is a positive integer.

In an optional embodiment, when Y time units are selected in the second resource selection window to form a candidate resource set and periodic resource reservation is not performed, the time unit u is equal to the time unit Sy;

Wherein, the second resource selection window is a resource selection window corresponding to the resource selection process, Sy is the yth time unit in the Y time units, y is a positive integer not greater than Y, and Y is a positive integer.

In an optional embodiment, the value of L is related to the Y time units.

In an optional embodiment, L is equal to Y-y1+1;

or,

L is greater than or equal to Y-y1+1;

or,

L is equal to Y;

or,

L is greater than or equal to Y.

In an optional embodiment, the value of L is related to the Y time units.

In an optional embodiment, L is equal to Y-y+1;

or,

L is greater than or equal to Y-y+1;

or,

L is equal to Y;

or,

L is greater than or equal to Y.

In an optional embodiment, the L time units include a time unit (Sy1+k*T) to a last time unit (SY+k*T) in the kth resource reservation period.

In an optional embodiment, the L time units include the time unit Sy in the candidate resource set to the last time unit SY in the candidate resource set.

In an optional embodiment, when it is determined in the resource selection process that B time units constitute the target transmission resource and periodic resource reservation is performed, the time unit u includes a time unit (Rb1 +k*T) to time unit (Rbu+k*T);

Wherein, Rb1 is the b-th time unit in the B time units, Rbu is the bu-th time unit in the B time units, and the resource reservation period of the periodic resource reservation is T, k It is the kth resource reservation period after the resource selection, b1 and bu are positive integers not greater than B, B is a positive integer, T is a positive number, and u is a positive integer.

In an optional embodiment, when it is determined in the resource selection process that B time units constitute the target transmission resource and no periodic resource reservation is performed, the time unit u is equal to the time unit Rb;

Wherein, Rb is the b-th time unit among the B time units, b is a positive integer not greater than B, and B is a positive integer.

In an optional embodiment, the value of L is related to the B time units.

In an alternative embodiment, L is equal to B-b1+1; or,

L is greater than or equal to B-b1+1;

or,

L is equal to B;

or,

L is greater than or equal to B.

In an optional embodiment, the value of L is related to the B time units.

In an optional embodiment, L is equal to B-b+1;

or,

L is greater than or equal to B-b+1;

or,

L is equal to B;

or,

L is greater than or equal to B.

In an optional embodiment, the L time units include a time unit (Rb1+k*T) to a last time unit (RB+k*T) in the kth resource reservation period.

In an optional embodiment, the L time units include a time unit Rb in the target transmission resource to a last time unit RB in the target transmission resource.

In an optional embodiment, the time unit u includes at least two time units;

The re-evaluation and/or preemption process based on the partial monitoring of the at least two time units is performed separately;

or,

The re-evaluation and/or preemption process based on the partial monitoring of the at least two time units is performed simultaneously.

In an optional embodiment, the L time units include time units within the first resource selection window among the Y time units in the kth resource reservation period;

or,

The L time units include time units within the first resource selection window among the Y time units.

In an optional embodiment, the L time units include time units within the first resource selection window among the Y time units.

In an optional embodiment, the L time units include time units within the first resource selection window among the B time units in the kth resource reservation period;

or,

The L time units include time units within the first resource selection window among the B time units.

In an optional embodiment, the L time units include time units within the first resource selection window among the B time units.

FIG. 14 shows a schematic structural diagram of a communication device (terminal device or network device) provided by an exemplary embodiment of the present application. The communication device includes: a processor 101 , a receiver 102 , a transmitter 103 , a memory 104 and a bus 105 .

The processor 101 includes one or more processing cores, and the processor 101 executes various functional applications and information processing by running software programs and modules.

The receiver 102 and the transmitter 103 can be implemented as a communication component, which can be a communication chip.

The memory 104 is connected to the processor 101 through the bus 105 .

The memory 104 may be used to store at least one instruction, and the processor 101 is used to execute the at least one instruction, so as to implement various steps in the foregoing method embodiments.

In addition, the memory 104 can be implemented by any type of volatile or non-volatile storage device or their combination. The volatile or non-volatile storage device includes but not limited to: magnetic disk or optical disk, electrically erasable and programmable Electrically-Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Random Access Memory (SRAM), Read-Only Memory (Read-Only Memory, ROM), magnetic memory, flash memory, programmable read-only memory (Programmable Read-Only Memory, PROM).

Wherein, when the communication device is implemented as a terminal device, the processor and the transceiver in the communication device involved in the embodiment of the present application can perform the steps performed by the terminal device in any of the above-mentioned methods, which will not be repeated here. .

In a possible implementation manner, when the communication device is implemented as a terminal device,

The processor is configured to determine a target transmission resource in a resource selection process; and process the target transmission resource by using a re-evaluation and/or preemption process based on partial monitoring.

In an exemplary embodiment, a computer-readable storage medium is also provided, the computer-readable storage medium stores at least one instruction, at least one program, a code set or an instruction set, the at least one instruction, the At least one section of program, the code set or instruction set is loaded and executed by the processor to implement the method for selecting transmission resources performed by the communication device provided in the above method embodiments.

In an exemplary embodiment, there is also provided a chip, the chip includes a programmable logic circuit and/or program instructions, and when the chip is run on a computer device, it is used to implement the transmission resource described in the above aspects Method of choosing.

In an exemplary embodiment, a computer program product is also provided. When the computer program product runs on a processor of a computer device, the computer device executes the method for selecting transmission resources described in the above aspects.

Those of ordinary skill in the art can understand that all or part of the steps for implementing the above embodiments can be completed by hardware, and can also be completed by instructing related hardware through a program. The program can be stored in a computer-readable storage medium. The above-mentioned The storage medium mentioned may be a read-only memory, a magnetic disk or an optical disk, and the like.

The above are only optional embodiments of the application, and are not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection of the application. within range.

Claims (59)

1. A method for selecting transmission resources, characterized in that it is applied to a terminal for V2X transmission, and the method includes:

   Determining target transmission resources during the resource selection process;

   The target transmission resource is processed using a partial intercept based re-evaluation and/or preemption procedure.
2. The method according to claim 1, wherein the processing of the target transmission resource using a re-evaluation and/or preemption process based on partial monitoring includes:

   In case the partial intercept based resource selection procedure is used, the target transmission resource is processed using a partial intercept based re-evaluation and/or preemption procedure.
3. The method according to claim 1, wherein the processing of the target transmission resource using a re-evaluation and/or preemption process based on partial monitoring includes:

   In a case where the configuration information is configured to use the partial interception, process the target transmission resource using a partial interception-based re-evaluation and/or preemption process;

   Wherein, the configuration information includes: at least one of first configuration information sent by the access network device, second configuration information sent by a higher layer, and pre-configuration information.
4. The method according to claim 1, wherein the processing of the target transmission resource using a re-evaluation and/or preemption process based on partial monitoring includes:

   When the attribute of the data to be transmitted satisfies the trigger condition, the target transmission resource is processed by using a re-evaluation and/or preemption process based on partial monitoring.
5. The method according to any one of claims 1 to 4, wherein the target transmission resources include: transmission resources within the time unit u;

   The processing of the target transmission resource using the re-evaluation and/or preemption process based on partial monitoring includes:

   selecting a candidate time unit from the first resource selection window, the candidate time unit including at least the time unit u;

   Based on the partial interception result corresponding to the candidate time unit, re-evaluate and/or preempt the target transmission resource based on the partial interception;

   Wherein, the first resource selection window is a resource selection window corresponding to a re-evaluation and/or preemption process based on the partial monitoring.
6. The method according to claim 5, wherein the selecting a candidate time unit from the first resource selection window comprises:

   Selecting L time units in the first resource selection window to obtain the candidate time units, where L is a positive integer.
7. The method according to claim 6, characterized in that,

   L is equal to the number of time units in the time unit u;

   or,

   L is a positive integer not less than a first threshold, where the first threshold is a pre-configured value or a value configured by a network device.
8. The method according to claim 6, characterized in that,

   In the case that Y time units are selected in the second resource selection window to form a candidate resource set and periodic resource reservation is performed, the time unit u includes time units (Sy1+k*T) to time units (Syu+k *T);

   Wherein, the second resource selection window is a resource selection window corresponding to the resource selection process, Sy1 is the y1th time unit in the Y time units, and Syu is the yuth time unit in the Y time units Time unit, the resource reservation period of the periodic resource reservation is T, k is the kth resource reservation period after the resource selection, y1 and yu are positive integers not greater than Y, and Y is a positive integer, T is a positive number, u is a positive integer.
9. The method according to claim 6, characterized in that,

   In the case that Y time units are selected in the second resource selection window to form a candidate resource set and no periodic resource reservation is performed, the time unit u is equal to the time unit Sy;

   Wherein, the second resource selection window is a resource selection window corresponding to the resource selection process, Sy is the yth time unit in the Y time units, y is a positive integer not greater than Y, and Y is a positive integer.
10. The method according to claim 8, characterized in that,

    The value of L is related to the Y time units.
11. The method according to claim 10, characterized in that,

    L is equal to Y-y1+1;

    or,

    L is greater than or equal to Y-y1+1;

    or,

    L is equal to Y;

    or,

    L is greater than or equal to Y.
12. The method according to claim 9, characterized in that,

    The value of L is related to the Y time units.
13. The method according to claim 12, characterized in that,

    L is equal to Y-y+1;

    or,

    L is greater than or equal to Y-y+1;

    or,

    L is equal to Y;

    or,

    L is greater than or equal to Y.
14. The method according to claim 8, characterized in that,

    The L time units include time unit (Sy1+k*T) to the last time unit (SY+k*T) in the kth resource reservation period.
15. The method according to claim 9, characterized in that,

    The L time units include the time unit Sy in the candidate resource set to the last time unit SY in the candidate resource set.
16. The method according to claim 6, characterized in that,

    In the case that B time units are determined to constitute the target transmission resource during the resource selection process and periodic resource reservation is performed, the time unit u includes time unit (Rb1+k*T) to time unit ( Rbu+k*T);

    Wherein, Rb1 is the b1th time unit in the B time units, Rbu is the bu-th time unit in the B time units, and the resource reservation period of the periodic resource reservation is T, k is the kth resource reservation period after the resource selection process, b1 and bu are positive integers not greater than B, B is a positive integer, T is a positive number, and u is a positive integer.
17. The method according to claim 6, characterized in that,

    When it is determined in the resource selection process that B time units constitute the target transmission resource and no periodic resource reservation is performed, the time unit u is equal to the time unit Rb;

    Wherein, Rb is the b-th time unit among the B time units, b is a positive integer not greater than B, and B is a positive integer.
18. The method according to claim 16, characterized in that,

    The value of L is related to the B time units.
19. The method of claim 18, wherein,

    L is equal to B-b1+1;

    or,

    L is greater than or equal to B-b1+1;

    or,

    L is equal to B;

    or,

    L is greater than or equal to B.
20. The method according to claim 17, characterized in that,

    The value of L is related to the B time units.
21. The method of claim 20, wherein

    L is equal to B-b+1;

    or,

    L is greater than or equal to B-b+1;

    or,

    L is equal to B;

    or,

    L is greater than or equal to B.
22. The method according to claim 16, characterized in that,

    The L time units include time unit (Rb1+k*T) to the last time unit (RB+k*T) in the kth resource reservation period.
23. The method according to claim 17, characterized in that,

    The L time units include the time unit Rb in the target transmission resource to the last time unit RB in the target transmission resource.
24. The method according to claim 5, wherein the time unit u comprises at least two time units;

    The candidate time units selected in the re-evaluation and/or preemption process based on the partial monitoring of different resources corresponding to the at least two time units are different;

    or,

    The candidate time units selected in the re-evaluation based on the partial monitoring and/or the preemption process of the different resources corresponding to the at least two time units are the same.
25. The method according to claim 8, wherein the L time units include the time units within the first resource selection window among the Y time units in the kth resource reservation period ;

    or,

    The L time units include time units within the first resource selection window among the Y time units.
26. The method according to claim 9, wherein the L time units include time units within the first resource selection window among the Y time units.
27. The method according to claim 16, wherein the L time units include the time units in the first resource selection window among the B time units in the kth resource reservation period ;

    or,

    The L time units include time units within the first resource selection window among the B time units.
28. The method according to claim 17, wherein the L time units include time units within the first resource selection window among the B time units.
29. A device for selecting transmission resources, characterized in that the device includes:

    a selection module, configured to determine target transmission resources during the resource selection process;

    A processing module, configured to process the target transmission resource by using a re-evaluation and/or preemption process based on partial monitoring.
30. The device according to claim 29, wherein the processing module is configured to use a re-evaluation and/or preemption process based on partial monitoring in the case of using the resource selection process based on the partial monitoring, to The above-mentioned target transmission resources are processed.
31. The device according to claim 29, characterized in that, the processing module is configured to use a re-evaluation and/or preemption process based on partial monitoring when the configuration information is configured to use the partial monitoring. target transfer resource for processing;

    Wherein, the configuration information includes: at least one of first configuration information sent by the access network device, second configuration information sent by a higher layer, and pre-configuration information.
32. The device according to claim 29, wherein the processing module is configured to use a re-evaluation and/or preemption process based on partial monitoring to process the target object when the attribute of the data to be transmitted meets the trigger condition Transfer resources for processing.
33. The device according to any one of claims 29 to 32, wherein the target transmission resources include: transmission resources within the time unit u;

    The processing module is configured to select a candidate time unit from the first resource selection window, where the candidate time unit includes at least the time unit u;

    The processing module is configured to re-evaluate and/or preempt the target transmission resource based on the partial intercept based on the partial intercept result corresponding to the candidate time unit;

    Wherein, the first resource selection window is a resource selection window corresponding to a re-evaluation and/or preemption process based on the partial monitoring.
34. The device according to claim 33, wherein the processing module is configured to select L time units in the first resource selection window to obtain the candidate time units, where L is a positive integer.
35. The device according to claim 34, characterized in that,

    L is equal to the number of time units in the time unit u;

    or,

    L is a positive integer not less than a first threshold, where the first threshold is a pre-configured value or a value configured by a network device.
36. The device according to claim 34, characterized in that,

    In the case that Y time units are selected in the second resource selection window to form a candidate resource set and periodic resource reservation is performed, the time unit u includes time units (Sy1+k*T) to time units (Syu+k *T);

    Wherein, the second resource selection window is a resource selection window corresponding to the resource selection process, Sy1 is the y1th time unit in the Y time units, and Syu is the yuth time unit in the Y time units Time unit, the resource reservation period of the periodic resource reservation is T, k is the kth resource reservation period after the resource selection, y1 and yu are positive integers not greater than Y, and Y is a positive integer, T is a positive number, u is a positive integer.
37. The device according to claim 34, characterized in that,

    In the case that Y time units are selected in the second resource selection window to form a candidate resource set and no periodic resource reservation is performed, the time unit u is equal to the time unit Sy;

    Wherein, the second resource selection window is a resource selection window corresponding to the resource selection process, Sy is the yth time unit in the Y time units, y is a positive integer not greater than Y, and Y is a positive integer.
38. Apparatus according to claim 36, characterized in that,

    The value of L is related to the Y time units.
39. Apparatus according to claim 38, characterized in that,

    L is equal to Y-y1+1;

    or,

    L is greater than or equal to Y-y1+1;

    or,

    L is equal to Y;

    or,

    L is greater than or equal to Y.
40. Apparatus according to claim 37, characterized in that

    The value of L is related to the Y time units.
41. The device according to claim 40, characterized in that,

    L is equal to Y-y+1;

    or,

    L is greater than or equal to Y-y+1;

    or,

    L is equal to Y;

    or,

    L is greater than or equal to Y.
42. Apparatus according to claim 36, characterized in that,

    The L time units include time unit (Sy1+k*T) to the last time unit (SY+k*T) in the kth resource reservation period.
43. Apparatus according to claim 37, characterized in that

    The L time units include the time unit Sy in the candidate resource set to the last time unit SY in the candidate resource set.
44. The device according to claim 34, characterized in that,

    In the case that B time units are determined to constitute the target transmission resource during the resource selection process and periodic resource reservation is performed, the time unit u includes time unit (Rb1+k*T) to time unit ( Rbu+k*T);

    Wherein, Rb1 is the b1th time unit in the B time units, Rbu is the bu-th time unit in the B time units, and the resource reservation period of the periodic resource reservation is T, k It is the kth resource reservation period after the resource selection, b1 and bu are positive integers not greater than B, B is a positive integer, T is a positive number, and u is a positive integer.
45. The device according to claim 34, characterized in that,

    When it is determined in the resource selection process that B time units constitute the target transmission resource and no periodic resource reservation is performed, the time unit u is equal to the time unit Rb;

    Wherein, Rb is the b-th time unit among the B time units, b is a positive integer not greater than B, and B is a positive integer.
46. The apparatus of claim 44 wherein,

    The value of L is related to the B time units.
47. The apparatus according to claim 46, characterized in that,

    L is equal to B-b1+1;

    or,

    L is greater than or equal to B-b1+1;

    or,

    L is equal to B;

    or,

    L is greater than or equal to B.
48. Apparatus according to claim 45, characterized in that,

    The value of L is related to the B time units.
49. The apparatus of claim 48, wherein

    L is equal to B-b+1;

    or,

    L is greater than or equal to B-b+1;

    or,

    L is equal to B;

    or,

    L is greater than or equal to B.
50. The apparatus of claim 44 wherein,

    The L time units include time unit (Rb1+k*T) to the last time unit (RB+k*T) in the kth resource reservation period.
51. Apparatus according to claim 45, characterized in that,

    The L time units include the time unit Rb in the target transmission resource to the last time unit RB in the target transmission resource.
52. The device according to claim 33, wherein the time unit u comprises at least two time units;

    The candidate time units selected in the re-evaluation and/or preemption process based on the partial monitoring of different resources corresponding to the at least two time units are different;

    or,

    The candidate time units selected in the re-evaluation based on the partial monitoring and/or the preemption process of the different resources corresponding to the at least two time units are the same.
53. The device according to claim 36, wherein the L time units include the time units within the first resource selection window among the Y time units in the kth resource reservation period ;

    or,

    The L time units include time units within the first resource selection window among the Y time units.
54. The device according to claim 37, wherein the L time units include time units within the first resource selection window among the Y time units.
55. The device according to claim 44, wherein the L time units include the time units within the first resource selection window among the B time units in the kth resource reservation period ;

    or,

    The L time units include time units within the first resource selection window among the B time units.
56. The device according to claim 45, wherein the L time units include time units within the first resource selection window among the B time units.
57. A terminal device, characterized in that the terminal device includes: a processor and a transceiver connected to the processor; wherein,

    The processor is configured to determine a target transmission resource in a resource selection process; and process the target transmission resource by using a re-evaluation and/or preemption process based on partial monitoring.
58. A computer-readable storage medium, characterized in that executable instructions are stored in the readable storage medium, and the executable instructions are loaded and executed by a processor to realize the transmission according to any one of claims 1 to 28 Resource selection method.
59. A chip, characterized in that the chip includes programmable logic circuits or programs, and the chip is used to implement the method for selecting transmission resources as claimed in any one of claims 1 to 28.

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