CN117998318A

CN117998318A - Resource exclusion and resource reselection methods and devices

Info

Publication number: CN117998318A
Application number: CN202211386346.0A
Authority: CN
Inventors: 刘浩文; 丁昱; 陈咪咪
Original assignee: Xi'an Ziguang Zhanrui Technology Co ltd
Current assignee: Xi'an Ziguang Zhanrui Technology Co ltd
Priority date: 2022-11-07
Filing date: 2022-11-07
Publication date: 2024-05-07

Abstract

The application provides a method and a device for removing and reselecting resources, and relates to the technical field of communication. The resource exclusion method comprises the following steps: and determining a resource selection window according to the time unit triggering the resource selection, and eliminating target candidate resources from the candidate resource set corresponding to the resource selection window. The target candidate resources are used for transmitting data of the first network system, N (N is an integer greater than 1) PSFCH resources are corresponding to the target candidate resources, and at least K (K is an integer greater than 0 and less than or equal to N) PSFCH resources in the N PSFCH resources overlap reserved resources for transmitting data of the second network system in a time domain. The method can avoid supersaturation of the ADC, and further avoid that a receiving terminal receiving the data of the second network system cannot decode smoothly.

Description

Resource exclusion and resource reselection methods and devices

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and apparatus for resource exclusion and resource reselection.

Background

In new wireless (NR) car networking (vehicle to everything, V2X), long term evolution (longtermevolution, LTE) is supported to coexist with NR, e.g., co-channel coexistence (co-channel coexistence). For co-channel coexistence, a dynamic resource sharing scheme may be supported, i.e., supporting a resource pool where LTE-side and NR-side uplink configurations overlap completely or partially, and by enhancing the NR-side uplink protocol to support operation in this resource pool configuration scenario.

When there is overlap in the time domain between the LTE subframes and the NR slots, automatic gain control (automatic gain control, AGC) adjustments are required to reduce the interference of the NR signals to the LTE signals. In one case, due to the configuration of physical side uplink feedback channel (PSFCH) symbols in the NR slot, the terminal transmitting physical side uplink control channel (PSCCH)/physical side uplink shared channel (PHYSICAL SIDELINK SHARE CHANNEL, PSSCH) and the terminal transmitting PSFCH may be different, which may cause a problem of oversaturation of an analog-to-digital converter (analog to digital converter, ADC) of the LTE receiving terminal, thereby causing the LTE receiving terminal to fail to decode successfully.

Disclosure of Invention

The application provides a method and a device for eliminating and reselecting resources, which can avoid supersaturation of an ADC (analog-to-digital converter), and further avoid that a receiving terminal receiving data of a second network system cannot decode smoothly.

In a first aspect, a method for resource exclusion is provided, including: and determining a resource selection window according to the time unit triggering the resource selection, and eliminating target candidate resources from the candidate resource set corresponding to the resource selection window. The target candidate resources are used for transmitting data of the first network system, the target candidate resources correspond to N PSFCH resources (N is an integer greater than 1), at least K (K is an integer greater than 0 and less than or equal to N) PSFCH resources in the N PSFCH resources overlap reserved resources used for transmitting data of the second network system in a time domain, and the reserved resources used for transmitting data of the second network system can be recorded as first reserved resources.

The device for executing the method provided in the first aspect may be a sending terminal, where the sending terminal is configured to transmit data in the first network system. The transmission in the present application includes transmission and/or reception. The first network system and the second network system are different network systems, and the first network system can be an NR system and the second network system can be an LTE system. Of course, the first network system and the second network system may be other network systems, which is not limited by the present application.

The target candidate resource is not particularly a certain candidate resource, and as long as one candidate resource is used for transmitting data of the first network system, N PSFCH resources are corresponding, and at least K PSFCH resources in the N PSFCH resources overlap reserved resources for transmitting data of the second network system in time domain, the candidate resource is the target candidate resource in the first aspect.

In the method provided in the first aspect, when a part PSFCH of resources PSFCH corresponding to a candidate resource does not overlap with a first reserved resource in the time domain, the candidate resource is reserved in the candidate resource set, and because transmission on the part PSFCH resource does not interfere with transmission on the first reserved resource, transmission on the candidate resource can perform HARQ feedback through one or more of the part PSFCH resources, so as to avoid over-saturation of an ADC, and further avoid that a receiving terminal receiving data of a second network format cannot decode smoothly.

In one possible implementation, the candidate resource set corresponding to the resource selection window is any one of the following sets:

Initializing a candidate resource set;

The method comprises the steps that a candidate resource set after a second reserved resource is removed from an initialized candidate resource set, wherein the second reserved resource is a resource on a time unit determined in a resource selection window, the time unit determined in the resource selection window is determined according to a time unit which cannot be received in a resource sensing window of a terminal due to half duplex reasons, and whether resources are reserved or not cannot be judged on the time unit determined in the resource selection window;

Excluding candidate resource sets which are reserved by other terminals and are behind the candidate resources with RSRP measured values larger than the RSRP threshold value from the initialized candidate resource sets;

And excluding a second reserved resource and a candidate resource set reserved by other terminals and having an RSRP measured value larger than an RSRP threshold value from the initialized candidate resource set, wherein the second reserved resource is a resource on a time unit determined in a resource selection window, the time unit determined in the resource selection window is determined according to a time unit which cannot be received due to half duplex reasons in a resource sensing window of the terminal, and whether resources are reserved or not cannot be judged on the time unit determined in the resource selection window.

This possible implementation may exclude the target candidate resources at different points in the resource selection process, thereby providing a variety of ways of determining the final set of candidate resources to use.

In one possible implementation, the number of candidate resources in the candidate resource set corresponding to the resource selection window is greater than or equal to a number threshold, where the number threshold is a minimum number of candidate resources. In this possible implementation manner, the sending terminal may exclude the target candidate resources when the number of candidate resources in the candidate resource set corresponding to the resource selection window is greater than or equal to the number threshold, or not exclude the target candidate resources, so as to avoid that the number of candidate resources in the candidate resource set is too small, and provide a larger resource selection space.

In one possible implementation, the method further includes: and transmitting according to the candidate resource set excluding the target candidate resource.

In a second aspect, a resource reselection method is provided, including:

A first set of candidate resources is determined and a second set of candidate resources is determined from the first set of candidate resources. The first candidate resource set is a candidate resource set determined after the resources in the resource selection window are subjected to resource selection, and the second candidate resource set is used for resource reselection of the resources which are re-evaluated and/or preemptively judged.

Wherein, in the case that the re-evaluated and/or preempted judged resource does not satisfy the condition 1 (the condition 1 is that the PSFCH resource corresponding to the re-evaluated and/or preempted judged resource does not overlap with the first reserved resource in the time domain), the second candidate resource set is the first candidate resource set or the third candidate resource set, and/or in the case that the re-evaluated and/or preempted judged resource does not satisfy the condition 2 (the condition 2 is that the re-evaluated and/or preempted judged resource is in the third candidate resource set), the second candidate resource set is the third candidate resource set. The third candidate resource set is a candidate resource set after the target candidate resource is excluded from the first candidate resource, and PSFCH resources corresponding to the target candidate resource are overlapped with reserved resources for transmitting the data of the second network system in a time domain. The re-evaluated and/or preemptively judged resources are the resources used to transmit the data of the first network format. The reserved resources for transmitting data of the second network format may be denoted as first reserved resources.

The device for performing the method provided in the second aspect may be a transmitting terminal, where the transmitting terminal is configured to transmit data in the first network system. The transmission in the present application includes transmission and/or reception. The first network system and the second network system are different network systems, and the first network system can be an NR system and the second network system can be an LTE system. Of course, the first network system and the second network system may be other network systems, which is not limited by the present application.

The target candidate resource is not particularly a certain candidate resource, and as long as PSFCH resources corresponding to one candidate resource overlap reserved resources for transmitting data of the second network system in time domain, the candidate resource is the target candidate resource in the second aspect.

Where "re-evaluated and/or preempted judged resources" refers to "re-evaluated resources and/or preempted judged resources".

The method provided in the second aspect can be applied to a resource re-evaluation or resource preemption scenario, and judges whether the re-evaluated and/or preemption judged resources can be used for transmission, and if not, a second candidate resource set is determined for the re-evaluated and/or preemption judged resources, and resource re-selection is performed, so that the problem of ADC supersaturation caused by adopting the re-evaluated and/or preemption judged resources for transmission can be avoided, and smooth decoding of the LTE receiving terminal is ensured.

In one possible implementation, the first set of candidate resources is a set of candidate resources after excluding candidate resources reserved by other terminals and having an RSRP measurement value greater than an RSRP threshold from the initialized set of candidate resources; or the first candidate resource set is a candidate resource set after excluding a second reserved resource and a candidate resource reserved by other terminals and having an RSRP measurement value greater than an RSRP threshold value from the initialized candidate resource set, the second reserved resource is a resource on a time unit determined in a resource selection window, the time unit determined in the resource selection window is determined according to a time unit which cannot be received due to half duplex reasons in a resource sensing window of the terminal, and whether resources are reserved or not cannot be judged on the time unit determined in the resource selection window.

In one possible implementation, the method further includes: and performing resource reselection in the second candidate resource set.

In a third aspect, there is provided a resource excluding apparatus comprising: one or more functional modules configured to implement any one of the methods provided in the first aspect.

Illustratively, the resource exclusionary device includes: the processing unit is used for determining a resource selection window according to the time unit for triggering the resource selection; and the processing unit is also used for eliminating the target candidate resources from the candidate resource set corresponding to the resource selection window. The target candidate resources are used for transmitting data of a first network system, N (N is an integer greater than 1) PSFCH resources are corresponding to the target candidate resources, at least K (K is an integer greater than 0 and less than or equal to N) PSFCH resources in the N PSFCH resources overlap with the first reserved resources in a time domain, and the first reserved resources are reserved resources used for transmitting data of a second network system.

Initializing a candidate resource set;

In one possible implementation, the number of candidate resources in the candidate resource set corresponding to the resource selection window is greater than or equal to a number threshold, where the number threshold is a minimum number of candidate resources.

In one possible implementation, the apparatus further includes: and the communication unit is used for transmitting according to the candidate resource set excluding the target candidate resource.

In a fourth aspect, there is provided a resource reselection apparatus, comprising: one or more functional modules configured to implement any one of the methods provided in the first aspect.

Illustratively, the resource reselection device includes: the processing unit is used for determining a first candidate resource set, wherein the first candidate resource set is a candidate resource set determined after the resources in the resource selection window are subjected to resource selection; the processing unit is further used for determining a second candidate resource set according to the first candidate resource set, wherein the second candidate resource set is used for resource reselection of the resources which are reevaluated and/or preempted and judged;

Wherein, in the case that the re-evaluated and/or preempted judged resource does not satisfy the condition 1 (the condition 1 is that the PSFCH resource corresponding to the re-evaluated and/or preempted judged resource does not overlap with the first reserved resource in the time domain), the second candidate resource set is the first candidate resource set or the third candidate resource set, and/or in the case that the re-evaluated and/or preempted judged resource does not satisfy the condition 2 (the condition 2 is that the re-evaluated and/or preempted judged resource is in the third candidate resource set), the second candidate resource set is the third candidate resource set; the third candidate resource set is a candidate resource set after the target candidate resource is excluded from the first candidate resource, PSFCH resources corresponding to the target candidate resource are overlapped with the first reserved resource in the time domain, the resources which are re-evaluated and/or preempted and judged are resources used for transmitting the data of the first network system, and the first reserved resource is reserved for transmitting the data of the second network system.

In a possible implementation, the processing unit is further configured to perform resource reselection in the second candidate resource set.

In a fifth aspect, there is provided a resource excluding apparatus comprising: a processor;

The processor is coupled to the memory for storing computer-executable instructions that the processor executes to cause the apparatus to implement any one of the methods provided in the first aspect. The memory and the processor may be integrated together or may be separate devices. In the latter case, the memory may be located within the resource remover or may be located outside the resource remover.

In one possible implementation, the processor includes logic circuitry, and further includes an input interface and/or an output interface. Wherein the input interface is for performing the received actions in the respective method and the output interface is for performing the transmitted actions in the respective method.

In one possible implementation, the resource exclusion device further comprises a communication interface and a communication bus, the processor, the memory and the communication interface being connected by the communication bus. The communication interface is used for executing the actions of the transceiving in the corresponding method. The communication interface may also be referred to as a transceiver. In one possible implementation, the resource excluding means is a terminal or a chip in a terminal.

In a sixth aspect, there is provided a resource reselection apparatus, comprising: a processor;

The processor is coupled to the memory, the memory for storing computer-executable instructions, the processor executing the computer-executable instructions stored in the memory to cause the apparatus to implement any one of the methods provided in the second aspect. The memory and the processor may be integrated together or may be separate devices. In the latter case, the memory may be located within the resource reselection device or may be located outside the resource reselection device.

In one possible implementation, the resource reselection device further includes a communication interface and a communication bus, the processor, the memory, and the communication interface being connected by the communication bus. The communication interface is used for executing the actions of the transceiving in the corresponding method. The communication interface may also be referred to as a transceiver. In one possible implementation, the resource reselection means is a terminal or a chip in the terminal.

In a seventh aspect, there is provided a resource excluding apparatus comprising: a processor and a communication interface; the communication interface is used for inputting information and/or outputting information; the processor is configured to execute computer-executable instructions to cause an apparatus to implement any one of the methods provided in the first aspect.

In an eighth aspect, there is provided a resource reselection apparatus, including: a processor and a communication interface; the communication interface is used for inputting information and/or outputting information; the processor is configured to execute computer-executable instructions to cause an apparatus to implement any one of the methods provided in the second aspect.

In a ninth aspect, there is provided a computer readable storage medium comprising computer executable instructions which, when run on a computer, cause the computer to perform any one of the methods provided in the first or second aspects.

In a tenth aspect, there is provided a computer program product comprising computer-executable instructions which, when run on a computer, cause the computer to perform any one of the methods provided in the first or second aspects.

Technical effects caused by any implementation manner of the third aspect to the tenth aspect may be referred to technical effects caused by corresponding implementation manners of the first aspect and the second aspect, and are not described herein.

It should be noted that, various possible implementations of any one of the foregoing aspects, or possible implementations of different aspects, may be combined without contradiction between schemes.

Drawings

Fig. 1 is a schematic diagram of a network architecture according to the present application;

FIG. 2 is a schematic diagram of the locations of a resource selection window and a resource awareness window according to the present application;

FIG. 3 is a schematic flow chart of a resource selection method according to the present application;

FIG. 4 is a schematic illustration of a resource exclusion provided by the present application;

FIG. 5 (a) is a schematic diagram of resource overlapping according to the present application;

FIG. 5 (b) is a schematic diagram of a resource reselection provided by the present application;

FIG. 6 (a) is a schematic diagram of a resource detection method according to the present application;

Fig. 6 (b) and fig. 6 (c) are schematic diagrams of a resource reservation according to the present application;

fig. 7 is a schematic diagram of an LTE subframe and an NR slot provided by the present application when they overlap in the time domain;

FIG. 8 is a schematic flow chart of a method for resource elimination according to the present application;

Fig. 9 (a) is a schematic diagram of a candidate resource and PSFCH resources corresponding to the candidate resource provided in the present application;

FIG. 9 (b) is a schematic diagram of excluding candidate resources according to the present application;

FIG. 10 is a schematic flow chart of another resource selection provided by the present application;

FIG. 11 is a schematic flow chart of another resource selection provided by the present application;

FIG. 12 is a schematic flow chart of another resource selection provided by the present application;

FIG. 13 is a schematic flow chart of another resource selection provided by the present application;

FIG. 14 is a schematic flow chart of a resource reselection method provided by the present application;

FIG. 15 is a flowchart illustrating a resource selection and determination of a second candidate resource set according to the present application;

FIG. 16 is a flow chart of another resource reselection method provided by the present application;

FIG. 17 is a flowchart illustrating another resource selection and determination of a second candidate resource set according to the present application;

fig. 18 is a schematic diagram of a terminal according to the present application;

fig. 19 is a schematic diagram of a hardware structure of a terminal according to the present application;

fig. 20 is a schematic diagram of a hardware structure of another terminal according to the present application;

Fig. 21 is a schematic hardware structure of another terminal according to the present application.

Detailed Description

In the description of the present application, "/" means or, unless otherwise indicated, for example, A/B may mean A or B. "and/or" herein is merely an association relationship describing an association object, and means that three relationships may exist, for example, a and/or B may mean: a exists alone, A and B exist together, and B exists alone. In the description of the present application, unless otherwise indicated, "at least one" means one or more, and "a plurality" means two or more.

In addition, in order to facilitate the clear description of the technical solution of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ.

In the present application, the words "exemplary" or "such as" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The technical scheme provided by the application can be applied to a long term evolution (long termevolution, LTE) system, a fifth generation (5G) system, an NR system, a future evolution system or a plurality of communication fusion systems and the like. The 5G system may be a non-independent networking (non-standalone, NSA) 5G system or an independent networking (standalone, SA) 5G system.

The present application relates generally to communication between terminals, for example, between terminal 1 and terminal 2. Wherein terminal 1 and/or terminal 2 may also be in communication with a network device. For example, referring to fig. 1, fig. 1 shows a schematic diagram of a communication system to which the technical solution provided by the present application is applicable, where the communication system may include at least one network device (only 1 is shown in fig. 1) and at least one terminal (2 are shown in fig. 1, respectively, terminal 1 and terminal 2, and in fig. 1, the terminal is drawn as an example of a vehicle). One or more of the terminals 1 and 2 may communicate with the network device to transmit data (upstream data and/or downstream data) and/or configuration information. In addition, communication can also be performed between the terminal 1 and the terminal 2. In this case, both the transmitting entity and the receiving entity are terminals. The communication link between terminals is referred to as a Sidelink (SL), a sidelink, or the like, and is hereinafter referred to as a sidelink.

The technical scheme provided by the application can be applied to various communication scenes. For example, machine-to-machine (machine to machine, M2M), macro-micro communications, enhanced mobile broadband (enhanced mobilebroadband, eMBB), ultra-reliable ultra-low latency communications (e.g., unmanned, industrial control, etc.), mass internet of things communications (MASSIVEMACHINE TYPE communications, mMTC), internet of things (internet of things, ioT), industrial internet of things (IoT, IIoT), device-to-device (D2D) communications, V2X, etc. communications scenarios. Among them, V2X communication is a special D2D communication, V2X communication includes, but is not limited to, vehicle-to-vehicle (vehicleto vehicle, V2V) communication, vehicle-to-pedestrian (vehicleto pedestrian, V2P) communication, vehicle-to-infrastructure (vehicle to infrastructure, V2I) communication, and vehicle-to-network (vehicle to network, V2N) communication. The communication between the terminal 1 and the terminal 2 is, for example, V2X communication.

A network device is an entity on the network side that transmits signals, or receives signals, or both. The network device may be a means deployed in a radio access network (radio access network, RAN) for providing wireless communication functions for the terminal, e.g. a base station. The network device may be a macro base station, a micro base station (also called a small station), a relay station, an Access Point (AP), etc. in various forms, and may also include various forms of control nodes, such as a network controller. The control node can be connected with a plurality of base stations and can configure resources for a plurality of terminals covered by the plurality of base stations. In systems employing different radio access technologies, the names of base station capable devices may vary. For example, a global system for mobile communications (global system for mobile communication, GSM) or a code division multiple access (code division multiple access, CDMA) network may be referred to as a base transceiver station (base transceiver station, BTS), a wideband code division multiple access (wideband code division multiple access, WCDMA) network may be referred to as a base station (NodeB), an evolved NodeB (eNB or eNodeB) in an LTE system, and a next generation base station node (next generation node base station, gNB) in an NR system, and the specific names of the base stations are not limited by the present application. The network device may also be a radio controller in the cloud radio access network (cloud radio access network, CRAN) scenario, a network device in a future evolved public land mobile network (public land mobile network, PLMN), a transmission receiving node (transmission and reception point, TRP), etc.

A terminal is used to provide one or more of a voice service and a data connectivity service to a user, and the terminal is an entity on the user side for receiving signals, or transmitting signals, or receiving signals and transmitting signals. A terminal may also be called a User Equipment (UE), a terminal device, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal may be a Mobile Station (MS), a subscriber unit (subscriber unit), an unmanned aerial vehicle, an internet of things (internet of things, ioT) device, a Station (ST) in a wireless local area network (wireless local area networks, WLAN), a cellular phone (cellular phone), a smart phone (smart phone), a cordless phone, a wireless data card, a tablet, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local loop, WLL) station, a Personal Digital Assistant (PDA) device, a laptop (MACHINE TYPE communication), a Machine Type Communication (MTC) terminal, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device (which may also be referred to as a wearable smart device). The terminal may also be a terminal in a next generation communication system, for example, a terminal in a future evolved PLMN, a terminal in an NR system, etc.

In order to make the embodiments of the present application easier to understand, a part of the technology related to the embodiments of the present application will be briefly described.

1. Awareness-based resource allocation patterns

In side-uplink communications, the terminal supports a perceptually based resource allocation pattern (which may also be referred to as a pattern 2 resource allocation pattern). In the resource allocation mode, when the terminal needs to transmit, the terminal autonomously selects resources for transmission from a resource pool configured for the terminal. Illustratively, when the terminal is in a radio resource control (radio resource control, RRC) connected state, the network device may configure the terminal to operate in a perceived resource allocation-based mode through RRC signaling, the resource pool may also be configured through RRC signaling, when the terminal is in an RRC idle (RRC idle) state, the terminal may operate in a perceived resource allocation-based mode, the resource pool may be configured through a system information block (system information block, SIB) 21/SIB26, and when the terminal is out of coverage of the network device, the terminal may operate in a perceived resource allocation-based mode, the resource pool may be determined through a pre-configuration.

When the resource selection process is triggered, the physical layer of the terminal judges the resource occupation condition in a period of time (called a resource selection window) in the future according to the perception result in the previous period of time (called the resource perception window), eliminates the unavailable resources in the resource selection window, finally forms a candidate resource set and reports the candidate resource set to a media access control (medium access control, MAC) layer, and the MAC layer selects transmission resources in the candidate resource set according to the resource selection constraint condition. Illustratively, the time domain granularity of the resource sensing and resource selection procedure may be a slot (slot), and the frequency domain granularity may be a sub-channel (sub-channel).

The candidate resources or resources described in the following description of the present application may refer to time-frequency resources composed of one time slot and one or more sub-channels, and may be shorter or longer in time domain length and/or wider or narrower in frequency domain width, depending on the application scenario or evolution of communication technology, without limitation.

2. Determination of resource awareness window and resource selection window

As shown in fig. 2, time unit n is a time unit (e.g., slot n) that triggers a terminal to perform resource selection (or resource reselection), n-T ₀,n-T_proc,0 is a resource awareness window, and n+t ₁,n+T₂ is a resource selection window. "time unit of resource selection" may also be described as "time of resource selection". Wherein T ₀ is the time interval between the starting time unit of the resource-aware window and the time unit n triggering the resource selection; t _proc,0 is the time interval between the end time unit of the resource sensing window and the time unit n triggering the resource selection; t ₁ is the time interval between the time unit n triggering the resource selection and the start time unit of the resource selection window; t ₂ is the time interval between time unit n triggering the resource selection and the end time unit of the resource selection window.

Wherein T ₀ is pre-configured, which may be 1100 milliseconds (ms) or 100ms (which is only an example, and may be modified according to the requirements in the specific implementation), the former is a periodic transmission configuration, and the latter is an aperiodic transmission configuration; t _proc,0 is the time interval required to perform the decoding of the side-link control information (sidelink control information, SCI) and the demodulation reference signal (demodulation REFERENCE SIGNAL, DMRS) measurements. T ₁ depends on terminal implementation, and T ₁≤T_proc,1,T₂ is required to be met 0- ₁≤T_proc,1,T₂, and T _2min≤T₂ -residual packet delay budget (PACKET DELAY budget, PDB) is required to be met, wherein T _proc,1 is a physical time interval determined according to a protocol and a currently used subcarrier interval, and is used for a resource selection process and preparation of physical layer transmission data; t _2min is the lower bound of the preconfigured resource selection window end time.

The time units in the embodiments of the present application may be time slots, subframes, mini time slots, symbols, etc., which depend on different application scenarios or evolution of communication technologies, or may be other, without limitation.

3. Resource selection procedure

Referring to fig. 3, the process of resource selection by the terminal includes the following steps:

301. a resource selection window and M _total are determined.

Where M _total refers to the total number of candidate resources within the resource selection window. Specifically, the terminal may determine a start time unit (n+t ₁) and an end time unit (n+t ₂) of the resource selection window according to the time unit n for triggering resource selection, and determine M _total. Illustratively, the frequency domain width of one candidate resource is determined according to the transport block (transportblock, TB) size to be transmitted, and one candidate resource is one slot in the time domain.

302. A resource awareness window is determined.

Specifically, the terminal may determine a start time unit (n-T ₀) and an end time unit (n-T _proc,0) of the resource-aware window according to the time unit n that triggers resource selection.

303. A reference signal received power (REFERENCE SIGNAL RECEIVED power, RSRP) threshold is determined.

Wherein the RSRP threshold is used in the subsequent step 307.

304. The candidate resource set S _A is initialized.

Wherein S _A is initialized to the set of all candidate resource components within the resource selection window, i.e. the total number of candidate resources in S _A is M _total.

305. The resources on the reserved time units within the resource selection window are excluded in S _A.

The reserved time unit is a time unit determined in the resource selection window, the reserved time unit is determined according to a time slot which cannot be received due to half duplex reasons in the resource sensing window of the terminal, and whether resources are reserved or not cannot be judged on the reserved time unit. That is, the resources on the time units in which the resource occupation situation cannot be determined due to half duplex reasons within the resource selection window are excluded in S _A.

Specifically, when the time unit is a time slot, a time slot occupied by half-duplex transmission of the terminal (i.e., a time slot in which the terminal transmits data, or a half-duplex time slot called a terminal) is determined in the resource sensing window, and the time slot is considered to have transmission of other terminals. The time slots are reserved periodically according to all the optional reservation periods in the resource reservation period list (sl-ResourceReservePeriodList), and the resources of the relevant time slots falling into the resource selection window are eliminated.

An example is illustrated in connection with fig. 4. Referring to fig. 4, it is assumed that terminal 2 triggers resource selection in time unit n, that terminal 2 transmits data in time slot y within the resource sensing window, and that terminal 3 also transmits data in time slot y within the resource sensing window. In this case, since the terminal 2 cannot sense in the time slot y due to half duplex, the terminal 2 cannot obtain the resource occupation situation of other terminals in the time slot y (for example, the terminal 2 cannot know the resource occupation situation of the terminal 3 in the time slot y), and cannot know the periodic resource reservation situation of the other terminals in the resource selection window, so that resource collision may occur during resource selection.

Since the terminal 2 does not know the resource reservation periods of other terminals in the time slot y, in order to avoid any collision, all the optional reservation periods in the resource reservation period list are traversed, the time slot y is reserved periodically, whether the reserved periodic resources fall in the resource selection window is checked, and if so, all the candidate resources in the time slot z are regarded as reserved resources of other terminals, namely all the candidate resources in the time slot z are excluded.

The resource reservation period list is assumed to contain three reservation periods, 100ms, 500ms and 700ms, respectively. When the resource is removed, traversing all the optional resource reservation periods in the resource reservation period list, and checking whether the time slots n+100ms, n+100×2ms, n+100×3ms, …, n+500ms, n+500×2ms, n+500×3ms, …, n+700ms, n+700×2ms, n+700×3ms and … fall into a resource selection window or not respectively. Referring to fig. 4, assuming that the time slots y+100ms and y+100×2ms fall into the resource selection window, the resources corresponding to the time slots y+100ms and y+100×2ms in the resource selection window are excluded.

306. After the above-mentioned resource exclusion, if the number of candidate resources in S _A (i.e., S _A obtained in step 305) is smaller than the first threshold, then S _A is reset, i.e., the resource exclusion performed in step 305 is abandoned.

The first threshold is the minimum number of candidate resources, specifically, the minimum number of candidate resources reported by the physical layer of the terminal to a higher layer (e.g., MAC layer). For example, the first threshold may be x×m _total, where X is a preset scaling factor.

307. Candidate resources reserved by other terminals and having RSRP measurement values greater than the RSRP threshold are excluded in S _A (i.e., S _A from step 306).

Specifically, if the RSRP measured values of M transmission resources in the resource sensing window are greater than the RSRP threshold, the reserved transmission resources are excluded in S _A. M is an integer greater than 0. One transmission resource is used for carrying one TB of other terminals, specifically, one transmission resource is used for carrying control information and service data information of other terminals. Transmission resources are reserved for transmitting TBs of other terminals in a resource selection window, where the transmission may include new and retransmission. That is, reserving transmission resources includes: and the periodic reserved resources are determined according to the M transmission resources and the resource reserved periods corresponding to the M transmission resources, and the reserved retransmission resources corresponding to the M transmission resources.

An example is illustrated in connection with fig. 4. With continued reference to fig. 4, it is assumed that the terminal 2 perceives the resource occupation situation of the terminal 1 and the resource occupation situation of the terminal 4 within the resource perception window. Wherein, terminal 1 is periodically transmitted and terminal 4 is aperiodically transmitted. The terminal 2 can determine the reserved transmission resources of the terminal 1 in the resource selection window according to the transmission resources of the terminal 1 in the resource sensing window and the corresponding resource reservation period. And, the terminal 2 can determine the reserved retransmission resource of the terminal 4 in the resource selection window according to the transmission resource of the terminal 4 in the resource sensing window. If the RSRP measured value of the transmission resource of the terminal 1 in the resource sensing window is greater than the RSRP threshold (hereinafter, simply referred to as RSRP being greater than the RSRP threshold), and the RSRP of the transmission resource of the terminal 4 is less than or equal to the RSRP threshold, the terminal 2 excludes the reserved transmission resource of the terminal 1 in S _A, without excluding the reserved retransmission resource of the terminal 4.

If the RSRP of all transmission resources in the resource selection window is less than or equal to the RSRP threshold, the step 308 is continued without performing the resource exclusion in the step 307.

308. Determining whether the number of candidate resources in S _A (i.e., S _A obtained in step 307) is greater than or equal to the first threshold, if so, S _A is the final candidate resource set, and if not, the RSRP threshold is adjusted (e.g., increased by 3 dB), and returning to step 304.

After the above steps 301 to 308, the resource selection process of the terminal in the physical layer is completed, and then the final candidate resource set is reported to the higher layer, and the higher layer determines the transmission resource used by the current transmission in the final candidate resource set.

In fig. 3, some steps related to the present application are shown, and it should be noted that, in actual implementation, not limited to these steps, other processes may be performed between the steps, for example, an Inter-UE coordination (IUC) related process may also be performed between step 307 and step 308.

4. Re-evaluation of resources, resource reselection, and resource preemption

The re-evaluation of the resource refers to re-evaluating the selected but unreserved resource (i.e. the selected resource which is not reserved yet), so as to determine whether the resource collision occurs and further determine whether to perform the resource re-selection, so as to further reduce the resource collision and improve the reliability.

Where a resource has been selected means that the resource has been determined by a higher layer (e.g., MAC layer) for transmitting certain data (e.g., a certain Transport Block (TB)) in a previous resource selection process. Unreserved resources means that the resources are not reserved for transmission. The selected resources which are not reserved need to be detected to judge whether the collision of the resources occurs in the subsequent process. If a resource is indicated as being reserved for the first time in slot m, then the resource is detected (checking) at least at m-T3 (T3.ltoreq.Troc, 1), i.e., before the m-T3 or m-T3 time. And if the collision between the resource and other resources is detected, carrying out resource reselection.

For example, referring to fig. 5 (a), the transmitting terminal triggers a resource selection procedure at time unit n, selecting two resources (i.e., black filled resources in fig. 5 (a)), and the first transmission will reserve an indication of the second transmission. Before the first transmission resource, at least at the m-T3 moment, if the selected resource is found to collide with the resources of other terminals, for example, if the second resource is found to collide, then referring to (b) in fig. 5, the current moment is denoted as n moment (if the m-T3 moment is detected, the n moment is denoted as the m-T3 moment), triggering the resource selection, and reselecting one resource in the determined candidate resource set (i.e., the second black filled resource in (b) in fig. 5 is the reselected resource).

When transmitting on one resource, reservation indication is made on other selected but unreserved resources, i.e. reserved resources are indicated to other terminals through SCI carried on the resource. Illustratively, referring to (a) in fig. 6, (b) in fig. 6, and (c) in fig. 6, 4 resources are selected in the resource selection window. Referring to (a) in fig. 6, 4 selected resources have not been indicated by reservation, and then the 4 resources may be detected at least at the time of m-T3. Although resource 4 is indicated by the first reservation of resource 2, detection may occur earlier depending on the terminal implementation. Referring to (b) in fig. 6, the transmission has been made on the resource 1 and the reservation indicates the resources 2 and 3, and thus, the other terminals cannot reselect the resources 2 and 3 in the subsequent process. Referring to fig. 6 (c), for resource 4, it will be indicated by resource 2 reservation for the first time, so resource 4 can be detected at least at time m-T3, resource 2 has been transmitted on, and reservation indicates resource 3 and resource 4, so that other terminals cannot reselect resource 3 and resource 4 in the subsequent process.

After being selected and indicated by reservation, one resource may also be reserved by other terminals, for example, resource 2 and resource 3 in (b) in fig. 6, although reserved, may also be reserved by other terminals, so that at least at m-T3, resource 2 and resource 3 may be preempted, whether the resource may be occupied or not may be determined, if the preemption is successful, the resource may be used, and if the preemption is unsuccessful, the resource may not be used. If the resource cannot be used, the resource can be reselected, and the resource reselection process can be described above and will not be repeated.

Based on the above description, the re-evaluated resources referred to hereinafter refer to resources in the resource selection window that have been selected but not reserved, on which re-evaluation (or collision judgment, collision detection) is being performed or performed, and the preempted judged resources refer to resources in the resource selection window that have been selected and reserved, on which preemption judgment (or preemption detection) is being performed. For example, in (b) of fig. 6, at the time m-T3, the resource 2 and the resource 3 are the resources that are preemptively judged, and the resource 4 is the resource that is reevaluated.

The foregoing is a brief description of some of the techniques involved in this application.

In one possible implementation of NR V2X, LTE is supported to coexist with NR, e.g. co-channel. For co-channel coexistence, a dynamic resource sharing scheme may be supported, i.e., supporting a resource pool where LTE-side and NR-side uplink configurations overlap completely or partially, and by enhancing the NR-side uplink protocol to support operation in this resource pool configuration scenario. When there is overlap in the time domain between an LTE subframe (i.e., a subframe for transmitting data of LTE) and an NR slot (i.e., a slot for transmitting data of NR), the interference of the NR signal to the LTE signal can be reduced by AGC adjustment. For the receiving terminal, when the sum of the receiving power of the target signal and the in-band spurious leaked by the adjacent interference signal is in the ADC range, the receiving terminal can decode the target signal smoothly, and when the sum of the receiving power of the target signal and the in-band spurious leaked by the adjacent interference signal is out of the ADC range, the receiving terminal cannot decode the target signal smoothly. In one case, NR V2X supports hybrid automatic repeat request (hybrid automatic repeat request, HARQ) feedback, since PSFCH symbols (for HARQ feedback) in an NR slot may be configured differently for a terminal transmitting PSCCH/PSCCH and a terminal transmitting PSFCH, an LTE receiving terminal receives different in-band spurs on different symbols on an LTE subframe, and the LTE receiving terminal performs AGC adjustment only according to the first symbol (this symbol is an AGC symbol) on the LTE subframe, which cannot be fully applied to subsequent symbols, and may cause a problem that an ADC of the LTE receiving terminal is oversaturated (i.e., the sum of the received power of an LTE signal on some symbols and the in-band spurs of NR signal leakage exceeds the upper limit of the ADC range), which results in that the LTE receiving terminal cannot decode successfully.

For example, referring to fig. 7, the lte side and NR side uplinks are configured with the same subcarrier spacing (sub-CARRIERSPACE, SCS), e.g., 15kHz. On the LTE subframe, symbols 0 to 12 are used by the LTE transmitting terminal, for example, the LTE transmitting terminal transmits the PSSCH and DMRS on symbols 0 to 12, symbol 0 is an AGC symbol, and symbol 13 is a guard interval. On the NR slot, symbols 0 to 9 are used by the NR transmitting terminal 1, for example, the NR transmitting terminal 1 transmits PSSCH, PSCCH, and DMRS on symbols 0 to 9, symbols 11 and 12 are PSFCH symbols, and are used by the NR transmitting terminal 2 for HARQ feedback, symbols 0 and 11 are AGC symbols, and symbols 10 and 13 are guard intervals. The LTE receiving terminal may determine the interference caused by the NR transmitting terminal 1 according to the symbol 0 (i.e., AGC symbol) in the LTE subframe, so as to perform AGC adjustment, so that the sum of the received power of the adjusted LTE signal and the in-band spurious of the signal leakage of the NR transmitting terminal 1 is located in the ADC range. Since the symbol 10 in the LTE subframe is not an AGC symbol, the LTE receiving terminal cannot determine the interference caused by the NR transmitting terminal 2, so that the sum of the received power of the LTE signal and the in-band spurious of the signal leakage of the NR transmitting terminal 2 may exceed the ADC range, resulting in the problem of ADC oversaturation, which further results in that the LTE receiving terminal cannot decode successfully.

The application provides a resource elimination method, which is shown in fig. 8 and comprises the following steps:

801. the transmitting terminal determines the resource selection window according to the time unit triggering the resource selection (i.e. time unit n above).

The main execution body of the method shown in fig. 8 and the following description may be a transmitting terminal, specifically, may be the whole transmitting terminal, or may be a part of a module or a chip in the transmitting terminal. The transmitting terminal may be a transmitting terminal for transmitting data of the first network system. The first network system may be an NR system, where the transmitting terminal is a transmitting terminal for transmitting NR data.

Specific implementation of step 801 may be referred to above and will not be described here.

802. The sending terminal excludes target candidate resources from the candidate resource set corresponding to the resource selection window; the target candidate resource is used for transmitting data of a first network system, the target candidate resource corresponds to N PSFCH resources, at least K PSFCH resources in N PSFCH resources are overlapped with the first reserved resource in time domain, the first reserved resource is reserved for transmitting data of a second network system, N is an integer greater than 1, and K is an integer greater than 0 and less than or equal to N. Wherein N and/or K may be preset (e.g., specified by a protocol), or indicated by a network device, or determined by a transmitting terminal and a network device negotiating, which is not limited by the present application.

The second network system is an exemplary network system different from the first network system, and the second network system may be an LTE system. In various embodiments of the present application, the first reserved resource is a resource reserved in a resource selection window.

The candidate resource set corresponding to the resource selection window may be an initial candidate resource set or a candidate resource set subjected to resource exclusion.

Optionally, the number of candidate resources in the candidate resource set corresponding to the resource selection window is greater than or equal to a number threshold, where the number threshold is the minimum number of candidate resources, and the number threshold may be the first threshold or other thresholds. If the latter is the case, the number threshold may be preset (e.g., protocol-specified), or indicated by the network device, or determined by the transmitting terminal and the network device negotiating, the present application is not limited. That is, the transmitting terminal may exclude the target candidate resources when the number of candidate resources in the candidate resource set corresponding to the resource selection window is greater than or equal to the number threshold, or else, does not exclude the target candidate resources, thereby avoiding that the number of candidate resources in the candidate resource set is too small and providing a larger resource selection space. Hereinafter, for convenience of description, an example will be described in which the number threshold is taken as the first threshold.

The target candidate resource may be a candidate resource that is not selected, or may be a candidate resource that has been selected but not reserved, which is not a limitation of the present application. The target candidate resource may be used to carry PSCCH, PSSCH, DMRS or the like information. In actual implementation, the candidate resource set corresponding to the resource selection window may include a plurality of target candidate resources, and in this case, in the specific implementation, the transmitting terminal may exclude some or all of the plurality of target candidate resources from the candidate resource set corresponding to the resource selection window.

The PSFCH resources corresponding to the target candidate resources are used for carrying HARQ feedback of the data transmitted on the target candidate resources. The PSFCH resources corresponding to the target candidate resources overlap with the first reserved resources in the time domain, which means that if transmission is performed on the target candidate resources, HARQ feedback needs to be performed on PSFCH resources corresponding to the target candidate resources, and since the PSFCH resources overlap with the first reserved resources in the time domain, the HARQ feedback carried on the PSFCH resources will interfere with the transmission on the first reserved resources.

If a target candidate resource corresponds to N PSFCH resources, at this time, if there are some PSFCH resources that do not overlap with the first reserved resource in the time domain, transmission on the target candidate resource may be continued (i.e., the target candidate resource is reserved in the candidate resource set), and if all PSFCH resources overlap with the first reserved resource in the time domain, the target candidate resource may be excluded, so as to avoid interference to the transmission on the first reserved resource.

In this case, the receiving terminal corresponding to the transmitting terminal (the receiving terminal receives the data transmitted by the transmitting terminal on the target candidate resource) may perform HARQ feedback on PSFCH resources that do not overlap with the first reserved resource in the time domain, among PSFCH resources corresponding to the target candidate resource. For example, the receiving terminal may perform HARQ feedback on PSFCH resources that are earliest and do not overlap in time domain with the first reserved resource.

For example, assume that the first network system is an NR system and the second network system is an LTE system. Referring to (a) in fig. 9, n=3, k=3, that is, one candidate resource corresponds to 3 PSFCH resources, when 3 PSFCH resources all overlap with the first reserved resource in the time domain, the candidate resource is excluded, if one candidate resource (that is, resource a in the figure) corresponds to 3 PSFCH resources, 3 PSFCH resources are respectively located in resource 1, resource 2 and resource 3 in the figure, 2 resources (that is, resource 2 and resource 3) in the 3 resources overlap with the resource employed for LTE transmission (that is, the first reserved resource) in the time domain, and 1 resource (that is, resource 1) does not overlap with the resource employed for LTE transmission in the time domain, so that the resource is not excluded. Referring to (B) in fig. 9, n= 2,K =2, that is, when one candidate resource corresponds to 2 PSFCH resources and 2 PSFCH resources overlap with the first reserved resource in the time domain, the candidate resource is excluded, and if one candidate resource (that is, resource B in the figure) corresponds to 2 PSFCH resources, 2 PSFCH resources are respectively located in resource 1 and resource 2 in the figure, and 2 resources overlap with the resource used for LTE transmission in the time domain, the resource is excluded.

It may be appreciated that when the target candidate resource exists in the candidate resource set corresponding to the resource selection window, the transmitting terminal may execute step 802, and if not, the transmitting terminal does not need to execute step 802.

Optionally, the method further comprises:

803. And the sending terminal transmits according to the candidate resource set excluding the target candidate resource.

In step 803, when the method is specifically implemented, if the candidate resource set excluding the target candidate resource does not need to exclude other resources (i.e., the candidate resource set excluding the target candidate resource is the final candidate resource set), the transmitting terminal may select a resource from the candidate resource set excluding the target candidate resource for transmission. If the candidate resource set after the target candidate resource is excluded still needs to exclude other resources, then the other resources are continuously excluded, and the sending terminal can select the resources in the finally determined candidate resource set for transmission.

Specifically, the physical layer of the sending terminal may determine a final candidate resource set, and after determining, may report the candidate resource set to a higher layer (e.g., MAC layer), where the higher layer selects resources for transmission.

Optionally, if the number of candidate resources in the candidate resource set after excluding the target candidate resource is smaller than the first threshold, in one possible implementation manner, for a resource selection process of an RSRP threshold, if other candidate resources need to be excluded, the sending terminal may reset the candidate resource set, if other candidate resources need not to be excluded, the sending terminal may adjust the RSRP threshold and return to the step of initializing the candidate resource set, and in another possible implementation manner, the sending terminal may end the resource selection or trigger the random resource selection.

In the method provided by this embodiment, when a part PSFCH of a plurality of PSFCH resources corresponding to one candidate resource does not overlap with a first reserved resource in the time domain, the candidate resource is reserved in the candidate resource set, and because transmission on the part PSFCH resource does not interfere with transmission on the first reserved resource, transmission on the candidate resource can perform HARQ feedback through one or more of the part PSFCH resources, so as to avoid over-saturation of an ADC, and further avoid that a receiving terminal receiving data of a second network format cannot decode smoothly.

In addition, for the HARQ feedback mechanism supporting only NACK (groupcast option NACK-only) of the multicast scheme 1, the transmitting terminal considers that the information transmission is successful when the receiving terminal does not feed back, if the transmitting terminal transmits on one candidate resource, the receiving terminal discards the HARQ feedback on the PSFCH resource because the PSFCH resource corresponding to the candidate resource overlaps with the first reserved resource in the time domain, and at this time, the transmitting terminal may misuse the transmission as successful, and the method provided by the embodiment may also avoid the problem. Wherein NACK refers to a negative acknowledgement (Negative ACKnowledge).

In this embodiment, optionally, the candidate resource set corresponding to the resource selection window may be any one of the following sets 1 to 4.

Set 1, initialized candidate resource set.

If the candidate resource set corresponding to the resource selection window is set 1, the candidate resource set corresponding to the resource selection window is the candidate resource set obtained after the step 304.

Set 2, the candidate resource set after excluding the second reserved resource from the initialized candidate resource set.

The second reserved resource is a resource on a time unit (e.g., a time slot) determined in the resource selection window, where the time unit is determined according to a time unit (e.g., a time slot) in the resource sensing window of the terminal that cannot be received due to half duplex reasons, and whether there is a resource reserved on the time unit cannot be determined, that is, whether there is a resource on a time unit (e.g., a time slot) determined in the resource selection window according to a time unit (e.g., a time slot) in the resource sensing window of the terminal that cannot be received due to half duplex reasons, that is, whether there is a resource on the time unit that cannot be received due to half duplex reasons, that is, whether there is a resource on the reserved time unit.

If the candidate resource set corresponding to the resource selection window is set 2, the candidate resource set corresponding to the resource selection window is the candidate resource set obtained after executing the no branch in step 306.

Set 3, excluding candidate resources reserved by other terminals and having an RSRP measurement value greater than the RSRP threshold value from the initialized candidate resource set.

If the candidate resource set corresponding to the resource selection window is set 3, the candidate resource set corresponding to the resource selection window is the candidate resource set obtained after the yes branch is executed in the above step 306, and 308 is also executed.

Set 4, excluding the second reserved resource and the candidate resource reserved by other terminals and having an RSRP measurement value greater than the RSRP threshold value from the initialized candidate resource set.

If the candidate resource set corresponding to the resource selection window is set 4, the candidate resource set corresponding to the resource selection window is the candidate resource set obtained after the no branch is executed in the above step 306, and 308 is also executed.

The steps mentioned in the description related to the above sets 1 to 4 may be steps in any one of the loop flows in fig. 3, and the present application is not limited thereto.

The above step 802 may be performed after step 304 (denoted as case 1), after step 306 (denoted as case 2), or in step 308 (denoted as case 3) in fig. 3, and the following description will be given of the process of resource selection in cases 1 to 3, respectively.

Case 1, step 802, is performed after step 304 in fig. 3.

In case 1, referring to fig. 10, the process of resource selection includes:

1001-1004, respectively, are the same as steps 301-304.

1005. The target candidate resource is excluded in S _A.

1006. It is determined whether the number of candidate resources in S _A is less than a first threshold.

If yes, reset S _A, either end the resource selection or trigger random resource selection. If not, go to step 1007-step 1010.

1007-1010, Respectively, are the same as steps 305-308.

Case 2, step 802, is performed after step 306 in fig. 3.

In case 2, referring to fig. 11, the process of resource selection includes:

1101-1106, steps 301-306, respectively.

1107. The target candidate resource is excluded in S _A.

1108. It is determined whether the number of candidate resources in S _A is less than a first threshold.

If yes, reset S _A, either end the resource selection or trigger random resource selection. If not, go to step 1109-step 1110.

1109 To 1110, respectively, are identical to steps 307 to 308.

Case 3, step 802, is performed in step 308 in fig. 3.

In case 3, in one possible implementation, referring to fig. 12, the process of resource selection includes:

1201-1207, respectively, are the same as steps 301-307.

1208. It is determined whether the number of candidate resources in S _A is less than the first threshold, if yes, S _A is reset, and if not, steps 1209-1210 are performed.

1209. The target candidate resource is excluded in S _A.

1210. It is determined whether the number of candidate resources in S _A is greater than or equal to a first threshold.

If so, S _A is the final candidate resource set. If not, the RSRP threshold is adjusted and the process returns to step 1204.

In case 3, in another possible implementation, referring to fig. 13, the process of resource selection includes:

1301-1307, respectively, are identical to steps 301-307.

1308. It is determined whether the number of candidate resources in S _A is greater than or equal to a first threshold.

If so, the target candidate resources are excluded in S _A, it is again determined whether the number of candidate resources in S _A is greater than or equal to the first threshold, if so, S _A is the final candidate resource set, if not, the RSRP threshold is adjusted and the step 1304 is returned, or the resource selection is ended, or the random resource selection is triggered, or the step 1304 is returned after resetting S _A and adjusting the RSRP threshold.

If not, the RSRP threshold is adjusted and step 1304 is returned.

The above cases 1 to 3 are merely examples, and in practical implementation, the target candidate resource may be excluded before or after other steps or in steps, and the present application is not limited.

The application also provides a resource reselection method, see fig. 14, which further comprises:

1401. The sending terminal determines a first candidate resource set, wherein the first candidate resource set is a candidate resource set determined after the resources in the resource selection window are subjected to resource selection.

The first candidate resource set may be a candidate resource set determined through the process shown in fig. 3, or may be a candidate resource set determined through the embodiment related to fig. 8, 10, 11, 12 or 13, which is not limited by the present application.

The first candidate resource set may be set 3 or set 4 described above, for example.

1402. And the sending terminal determines a second candidate resource set according to the first candidate resource set, wherein the second candidate resource set is used for resource reselection of the resources which are reevaluated and/or preempted and judged.

The resource which is reevaluated and/or preempted and judged is a resource used for transmitting the data of the first network system. "re-evaluated and/or preempted judged resources" refers to "re-evaluated resources and/or preempted judged resources". The "re-assessed and/or preempted judged resources" are used for transmission PSCCH, PSSCH, DMRS, etc. The description of the first network system may be referred to above, and will not be repeated.

In a case where the re-evaluated and/or preempted judged resource does not satisfy condition 1 (condition 1 is that PSFCH resources corresponding to the re-evaluated and/or preempted judged resource do not overlap with the first reserved resource in the time domain), in one possible implementation, the second candidate resource set is the first candidate resource set. In another possible implementation, the second set of candidate resources is a third set of candidate resources. The third candidate resource set is a candidate resource set after the target candidate resource is excluded from the first candidate resources, and PSFCH resources corresponding to the target candidate resource overlap with the first reserved resource in the time domain. The first reserved resource is a reserved resource for transmitting data of the second network format. The description of the second network system may be referred to above, and will not be repeated.

It may be appreciated that, when the PSFCH resources corresponding to the re-estimated and/or preempted resources do not overlap with the first reserved resources in the time domain, which means that the HARQ feedback carried on the PSFCH resources does not interfere with the transmission on the first reserved resources, the resources corresponding to the PSFCH resources (i.e., the re-estimated and/or preempted resources) may be used for transmission, otherwise, in order to avoid the interference to the transmission on the first reserved resources, the resources corresponding to the PSFCH resources (i.e., the re-estimated and/or preempted resources) are preferably not used for transmission, where the resources corresponding to the PSFCH resources (i.e., the re-estimated and/or preempted resources) are to be subjected to resource reselection, so that the second candidate resource set needs to be determined.

In actual implementation, there may be multiple resources to be reevaluated and/or preempted and judged, for example, resource 1 is a reevaluated resource, resource 2 is a preempted and judged resource, resource 3 is a preempted and judged resource, resource 4 is a reevaluated resource, and the sending terminal may respectively judge whether each resource satisfies condition 1, and if not, determine a second candidate resource set corresponding to the resource.

It should be noted that, for different resources, the second candidate resource set may be determined at different times, and since the sending terminal intermittently performs resource selection, candidate resources in the second candidate resource set corresponding to different resources may be different. For example, the second candidate set of resources (assumed to be second candidate set of resources 1) determined when the condition 1 is not satisfied and the candidate resources in the second candidate set of resources (assumed to be second candidate set of resources 2) determined when the condition 1 is not satisfied may be different, where the second candidate set of resources 1 is used for resource reselection of the resource 1 and the second candidate set of resources 2 is used for resource reselection of the resource 2.

The second candidate resource set may also be used for resource selection in a subsequent process, which is not limited by the present application.

Optionally, the method further comprises:

1403. And the sending terminal performs resource reselection in the second candidate resource set. In the subsequent process, transmission can be performed through the reselected resource.

The transmitting terminal may reselect one resource among the second candidate resource set for the resource corresponding to the PSFCH resources overlapping the first reserved resource in the time domain (i.e., the resource being reevaluated and/or the resource being preemptively determined) in step 1403. For example, if the re-evaluated and/or preemptively determined resource 1 does not satisfy the condition 1, a resource may be re-selected for the resource 1in the determined second candidate resource set corresponding to the resource 1.

The method provided by the embodiment can be applied to a resource reevaluation or resource preemption scene, and by judging whether PSFCH resources corresponding to the reevaluated and/or preempted judged resources overlap with the first reserved resources in the time domain, whether the reevaluated and/or preempted judged resources can be used for transmission or not is judged, and under the condition that the reevaluated and/or preempted judged resources cannot be used for transmission, a second candidate resource set is determined for the reevaluated and/or preempted judged resources, and resource reselection is performed, so that the problem of ADC supersaturation caused by adopting the reevaluated and/or preempted judged resources for transmission can be avoided, and the LTE receiving terminal is ensured to decode smoothly.

In this embodiment, referring to fig. 15, in the case where the second candidate resource set is the third candidate resource set, the process of determining the second candidate resource set includes:

1501-1508, steps 301-308 are the same as steps 301-308, respectively.

1509. And the sending terminal re-evaluates the resources or performs preemption judgment.

And if the resource is the selected resource which is not reserved, reevaluating, and if the resource is the selected resource which is reserved, preempting judgment is performed. When the preemption judgment is performed, if the preemption is successful, the subsequent process is not executed, and if the preemption is unsuccessful, the subsequent process is executed.

1510. The transmitting terminal determines whether the re-evaluated and/or preempted determined resource belongs to S _A or whether PSFCH resources corresponding to the re-evaluated and/or preempted determined resource overlap with the first reserved resource in the time domain.

If the resources belong to or are not overlapped, the sending terminal adopts the resources to transmit. If not, the target candidate resource is excluded in S _A to obtain a second candidate resource set.

Specifically, in step 1510, when the physical layer of the transmitting terminal may determine whether the re-evaluated and/or preempted and judged resource belongs to S _A, or determine whether PSFCH resources corresponding to the re-evaluated and/or preempted and judged resource overlap with the first reserved resource in the time domain, if it is determined that the re-evaluated and/or preempted and judged resource does not belong to S _A, or the PSFCH resources corresponding to the re-evaluated and/or preempted and judged resource overlap with the first reserved resource in the time domain, report the re-evaluation to a higher layer (e.g., MAC layer) (or instruct the higher layer to perform the re-evaluation), the physical layer excludes the target candidate resource in S _A, and sends a candidate resource set excluding the target candidate resource (i.e., the second candidate resource set) to the higher layer (e.g., MAC layer), where the higher layer is the re-selected resource for the re-evaluated and/or preempted and judged resource in the second candidate resource set.

The application also provides a resource reselection method, referring to fig. 16, the method further comprises:

1601. The sending terminal determines a first candidate resource set, wherein the first candidate resource set is a candidate resource set determined after the resources in the resource selection window are subjected to resource selection.

Specific implementation of step 1601 may be referred to above in step 1401, and will not be described here again.

1602. And the sending terminal determines a second candidate resource set according to the first candidate resource set, wherein the second candidate resource set is used for resource reselection of the resources which are reevaluated and/or preempted and judged.

Wherein the second candidate resource set is the third candidate resource set in the case that the re-evaluated and/or preempted judged resource does not satisfy condition 2 (condition 2 is that the re-evaluated and/or preempted judged resource is in the third candidate resource set). For a description of the re-assessed and/or preempted judged resources and the third candidate resource set, see the embodiments related to fig. 14 and 15, which are not repeated.

It will be appreciated that when a re-evaluated and/or preemptively judged resource is in the third candidate set of resources, it is indicated that the resource is available for transmission, otherwise (i.e., condition 2 is not satisfied), the resource cannot be used for transmission, at which time a resource reselection is to be performed for the resource, thereby requiring a determination of the second candidate set of resources.

In actual implementation, there may be multiple resources to be reevaluated and/or preempted and judged, for example, resource 1 is a reevaluated resource, resource 2 is a preempted and judged resource, resource 3 is a preempted and judged resource, resource 4 is a reevaluated resource, and the sending terminal may respectively judge whether each resource satisfies condition 2, and if not, determine a second candidate resource set corresponding to the resource.

It should be noted that, for different resources, the second candidate resource set may be determined at different times, and since the sending terminal intermittently performs resource selection, candidate resources in the second candidate resource set corresponding to different resources may be different. For example, the second candidate set of resources (assumed to be second candidate set of resources 3) determined when the condition 2 is not satisfied by the resource 3 and the candidate resources in the second candidate set of resources (assumed to be second candidate set of resources 4) determined when the condition 2 is not satisfied by the resource 4 may be different, where the second candidate set of resources 3 is used for resource reselection by the resource 3 and the second candidate set of resources 4 is used for resource reselection by the resource 4.

Optionally, the method further comprises:

1603. And the sending terminal performs resource reselection in the second candidate resource set.

The sending terminal may reselect one resource among the second candidate resource set for the re-evaluated and/or preemptively determined resources, via step 1603. For example, if the re-evaluated and/or preemptively determined resource 3 does not satisfy the condition 2, a resource may be re-selected for the resource 3 in the determined second candidate resource set corresponding to the resource 3. In the subsequent process, transmission can be performed through the reselected resource.

The method provided by the embodiment can be applied to a resource reevaluation or resource preemption scene, and by judging whether the reevaluated and/or preempted judged resources can be used for transmission or not, if not, determining a second candidate resource set for the reevaluated and/or preempted judged resources, wherein the second candidate resource set is a candidate resource set excluding target candidate resources, and carrying out resource reselection in the candidate resource set excluding target candidate resources, the resource reselection to the resources corresponding to PSFCH resources overlapped with the first reserved resources in the time domain can be avoided, so that the problem of ADC supersaturation is avoided, and smooth decoding of the LTE receiving terminal is ensured.

In this embodiment, referring to fig. 17, the process of determining the second candidate resource set includes:

1701-1708, identical to steps 301-308, respectively.

1709. And the sending terminal re-evaluates the resources or performs preemption judgment.

The specific implementation of step 1709 may be referred to above in step 1509, and will not be described again.

1710. And eliminating the target candidate resources in S _A to obtain a second candidate resource set.

1711. It is determined whether the re-evaluated and/or preempted judged resource belongs to a second set of candidate resources.

If yes, the sending terminal transmits on the resource, and if not, the sending terminal reselects the resource in the second candidate resource set.

Specifically, in step 1710 and step 1711, the physical layer of the transmitting terminal may exclude the target candidate resource in S _A, and determine whether the resource that is re-evaluated and/or preemptively determined belongs to the second candidate resource set. If not, the physical layer reports (or indicates) the higher layer to perform the reevaluation to the higher layer (e.g., the MAC layer), and sends the second candidate resource set to the higher layer (e.g., the MAC layer), where the higher layer reselects resources for the reevaluated and/or preempted resources in the second candidate resource set.

In the embodiment shown in fig. 14 to 17, in judging whether the condition 1 or the condition 2 is satisfied, the "re-evaluated and/or preempted judged resource" in the description relating to fig. 14 to 17 may be replaced with the "re-evaluated resource" if it is, and the "re-evaluated and/or preempted judged resource" in the description relating to fig. 14 to 17 may be replaced with the "preempted judged resource" if it is.

The above conditions 1 and 2 may be preset. The embodiment shown in fig. 14 (or fig. 15) and the embodiment shown in fig. 16 (or fig. 17) may be separate solutions, or may be integrated into a set of solutions, for example, different solutions are executed under different scenes, respectively, where the scene may be determined first, and which set of solutions is executed according to the scene is selected.

The embodiment shown in fig. 14 (or fig. 15) is relatively late in the process of re-evaluation or preemption determination compared to the embodiment shown in fig. 16 (or fig. 17) in which whether PSFCH resources overlap with the first reserved resources is directly considered in the process of resource selection, and the probability that new transmission for the second network system occurs between the re-evaluation or preemption determination and HARQ feedback is smaller and overlaps with the time slot in which PSFCH resources are located, so that the reliability of data transmission is higher. For example, if the resource selection is at time n, and the re-evaluation or preemption determines that the time slot in which the PSFCH resource is located is n2 (n 2 is after n 1) at time n1 (n 1 is after n 1), then the time window (n 1, n 2) is shorter than the time window (n, n 2), and the transmission of the second network system occurs within the time window (n 1, n 2) with less probability of overlapping with the time slot in which the PSFCH resource is located, and thus, higher reliability.

The time slots, subframes, etc. mentioned in the above embodiments of the present application may be replaced by other time slots, symbols, etc. depending on the application scenario or the evolution of the communication technology, and are not limited.

In the NR V2X scenario, a terminal may deploy an LTE module and an NR module at the same time. In the case that the first network system is an NR system and the second network system is an LTE system, the sending terminal in the above embodiment of the present application may be an NR module in a certain terminal, and the receiving terminal may be the terminal or an LTE module in another terminal.

The service scenario described in the embodiment of the present application is for more clearly describing the technical solution of the embodiment of the present application, and does not constitute a limitation on the technical solution provided by the embodiment of the present application. As can be known by those skilled in the art, with the appearance of a new service scenario, the technical solution provided by the embodiment of the present application is applicable to similar technical problems.

The foregoing description of the embodiments of the present application has been presented primarily in terms of methods. It will be appreciated that each network element, e.g. a terminal (e.g. a transmitting terminal as above) for implementing the above-described functions, comprises at least one of a corresponding hardware structure and software module for performing each function. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the application can divide the functional units of the terminal according to the method example, for example, each functional unit can be divided corresponding to each function, and two or more functions can be integrated in one processing unit. The integrated units may be implemented in hardware or in software functional units. It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice.

By way of example, fig. 18 shows a schematic diagram of one possible configuration of the terminal (denoted as terminal 180) involved in the above-described embodiments, the terminal 180 including a processing unit 1801. Optionally, a communication unit 1802 and/or a storage unit 1803 are also included.

The processing unit 1801 is configured to control and manage actions of the terminal, for example, the processing unit 1801 is configured to perform some or all of the steps in any one of fig. 8 and fig. 10 to 17, and/or actions performed by the terminal in other processes described in the embodiments of the present application. The processing unit 1801 may communicate with other network entities, e.g., with other terminals, via the communication unit 1802. The storage unit 1803 is used to store program codes and data of the terminal.

The terminal 180 may be a device or a chip system.

When terminal 180 is a device, the processing unit may be a processor; the communication unit may be a communication interface, a transceiver, or an input interface and/or an output interface. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input interface and/or the output interface may be an input circuit and/or an output circuit.

When the terminal 180 is a chip or a chip system, the communication unit may be a communication interface, an input interface and/or an output interface, an interface circuit, an output circuit, an input circuit, a pin, or related circuits, etc. on the chip or the chip system. The processing unit may be a processor, a processing circuit, a logic circuit, or the like.

In fig. 18, the storage unit may be a memory, a register, a cache, a read-only memory (ROM), a random access memory (random access memory, RAM), or the like.

In fig. 18, the communication unit may also be referred to as a transceiver unit. The antenna and the control circuit with the transceiving function in the terminal can be regarded as a communication unit, and the processor with the processing function can be regarded as a processing unit. Alternatively, the device for implementing the receiving function in the communication unit may be regarded as a receiving unit, where the receiving unit is configured to perform the step of receiving in the embodiment of the present application, and the receiving unit may be a receiver, a receiving circuit, or the like. The means for implementing the transmission function in the communication unit may be regarded as a transmission unit, which is used to perform the steps of transmission in the embodiment of the present application, and the transmission unit may be a transmitter, a transmission circuit, or the like.

The integrated units of fig. 18, if implemented in the form of software functional modules and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or a part contributing to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to perform all or part of the steps of the method described in the embodiments of the present application. The storage medium storing the computer software product includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

The units in fig. 18 may also be referred to as modules, for example, the processing units may be referred to as processing modules, the communication units may be referred to as communication modules, and the storage units may be referred to as storage modules.

The embodiment of the present application further provides a schematic hardware structure of a terminal (denoted as a terminal 190), referring to fig. 19 or fig. 20, where the terminal 190 includes a processor 1901, and optionally, a memory 1902 connected to the processor 1901.

The processor 1901 may be a general-purpose central processing unit (central processing unit, CPU), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the programs of the present application. The processor 1901 may also include multiple CPUs, and the processor 1901 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores for processing data (e.g., computer-executable instructions).

The memory 1902 may be a ROM or other type of static storage device, a RAM or other type of dynamic storage device that can store static information and instructions, or that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, as embodiments of the application are not limited in this regard. The memory 1902 may exist alone (in which case the memory 1902 may be located outside or within the terminal) or may be integrated with the processor 1901. Wherein the memory 1902 may contain computer-executable instructions. The processor 1901 is configured to execute computer-executable instructions stored in the memory 1902, thereby implementing the methods provided by the embodiments of the present application.

In a first possible implementation, referring to fig. 19, the terminal 190 further includes a transceiver 1903. The processor 1901, memory 1902, and transceiver 1903 are connected by a bus. The transceiver 1903 is used to communicate with other devices or communication networks. Alternatively, transceiver 1903 may include a transmitter and a receiver. The means for implementing the receiving function in the transceiver 1903 may be regarded as a receiver for performing the steps of receiving in an embodiment of the application. The means for implementing the transmit function in transceiver 1903 may be considered a transmitter for performing the transmit steps in embodiments of the present application.

Based on a first possible implementation, the processor 1901 is configured to control and manage actions of the terminal, for example, the processor 1901 is configured to support the terminal to perform some or all of the steps in any one of fig. 8 and fig. 10 to 17, and/or actions performed by the terminal in other processes described in the embodiments of the present application. The processor 1901 may communicate with other network entities, e.g., with other terminals, through the transceiver 1903. The memory 1902 is used for storing program codes and data of the terminal.

In a second possible implementation, referring to fig. 20, the processor 1901 includes logic circuitry and at least one of an input interface and an output interface. Wherein the output interface is for performing the act of transmitting in the respective method and the input interface is for performing the act of receiving in the respective method.

Based on a second possible implementation, the processor 1901 is configured to control and manage actions of the terminal, for example, the processor 1901 is configured to support the terminal to perform some or all of the steps in any one of fig. 8 and fig. 10 to 17, and/or actions performed by the terminal in other processes described in the embodiments of the present application. The processor 1901 may communicate with other network entities, e.g., with other terminals, through at least one of an input interface and an output interface. The memory 1902 is used for storing program codes and data of the terminal.

In addition, the embodiment of the application also provides a hardware structure schematic diagram of the terminal (denoted as a terminal 210), and particularly, refer to fig. 21.

Fig. 21 is a schematic hardware configuration of the terminal 210. For convenience of explanation, fig. 21 shows only main components of the terminal. As shown in fig. 21, the terminal 210 includes a processor, a memory, a control circuit, an antenna, and an input-output device.

The processor is mainly configured to process the communication protocol and the communication data, and control the entire terminal, execute a software program, process data of the software program, for example, control the terminal to perform part or all of the steps in any one of fig. 8 and fig. 10 to 17, and/or perform actions in other processes described in the embodiments of the present application. The memory is mainly used for storing software programs and data. The control circuit (may also be referred to as a radio frequency circuit) is mainly used for converting a baseband signal and a radio frequency signal and processing the radio frequency signal. The control circuit together with the antenna, which may also be called a transceiver, is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving data input by a user and outputting data to the user.

When the terminal is started, the processor can read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program. When data is required to be transmitted through the antenna, the processor carries out baseband processing on the data to be transmitted and then outputs a baseband signal to a control circuit in the control circuit, and the control circuit carries out radio frequency processing on the baseband signal and then transmits the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the control circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.

Those skilled in the art will appreciate that for ease of illustration, fig. 21 shows only one memory and processor. In an actual terminal, there may be multiple processors and memories. The memory may also be referred to as a storage medium or storage device, etc., and embodiments of the present application are not limited in this respect.

As an alternative implementation manner, the processor may include a baseband processor, which is mainly used to process the communication protocol and the communication data, and a central processor, which is mainly used to control the whole terminal, execute a software program, and process the data of the software program. The processor in fig. 21 integrates the functions of a baseband processor and a central processing unit, and those skilled in the art will appreciate that the baseband processor and the central processing unit may be separate processors, interconnected by bus technology, etc. Those skilled in the art will appreciate that a terminal may include multiple baseband processors to accommodate different network formats, and that a terminal may include multiple central processors to enhance its processing capabilities, with various components of the terminal being connectable via various buses. The baseband processor may also be referred to as a baseband processing circuit or baseband processing chip. The central processing unit may also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in a memory in the form of a software program, which is executed by the processor to realize the baseband processing function.

In implementation, each step in the method provided in the present embodiment may be implemented by an integrated logic circuit of hardware in a processor or an instruction in a software form. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution. For further description of the processor in fig. 21, reference may be made to the description of the processor in fig. 19 and 20, and the description will not be repeated.

Embodiments of the present application also provide a computer-readable storage medium comprising computer-executable instructions that, when run on a computer, cause the computer to perform any of the methods described above.

Embodiments of the present application also provide a computer program product comprising computer-executable instructions which, when run on a computer, cause the computer to perform any of the methods described above.

The embodiment of the application also provides a communication system, which comprises: and the transmitting terminal. Optionally, the method further comprises a receiving terminal for receiving the data transmitted by the sending terminal.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer-executable instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, for example, a website, computer, server, or data center via a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. Computer readable storage media can be any available media that can be accessed by a computer or data storage devices including one or more servers, data centers, etc. that can be integrated with the media. Usable media may be magnetic media (e.g., floppy disks, hard disks, magnetic tape), optical media (e.g., DVD), or semiconductor media (e.g., solid State Disk (SSD)) or the like.

Although the application is described herein in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a study of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the application has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents that fall within the scope of the application. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method for resource elimination, comprising:

determining a resource selection window according to the time unit triggering the resource selection;

Eliminating target candidate resources from the candidate resource set corresponding to the resource selection window; the target candidate resource is used for transmitting data of a first network system, the target candidate resource corresponds to N physical side uplink feedback channel PSFCH resources, at least K PSFCH resources in the N PSFCH resources are overlapped with a first reserved resource in a time domain, the first reserved resource is reserved for transmitting data of a second network system, N is an integer greater than 1, and K is an integer greater than 0 and less than or equal to N.

2. The method of claim 1, wherein the candidate resource set corresponding to the resource selection window is any one of the following sets:

Initializing a candidate resource set;

The method comprises the steps that a candidate resource set after a second reserved resource is excluded from the initialized candidate resource set, wherein the second reserved resource is a resource on a time unit determined in the resource selection window, the time unit determined in the resource selection window is determined according to a time unit which cannot be received due to half duplex reasons in a resource sensing window of a terminal, and whether resources are reserved or not cannot be judged on the time unit determined in the resource selection window;

Excluding candidate resource sets reserved by other terminals and behind candidate resources with Reference Signal Received Power (RSRP) measured values larger than an RSRP threshold value from the initialized candidate resource sets;

And excluding a second reserved resource and a candidate resource reserved by other terminals and having an RSRP measured value larger than an RSRP threshold from the initialized candidate resource set, wherein the second reserved resource is a resource on a time unit determined in the resource selection window, the time unit determined in the resource selection window is determined according to a time unit which cannot be received due to half duplex reasons in a resource sensing window of the terminal, and whether resources are reserved or not cannot be judged on the time unit determined in the resource selection window.

3. The method according to claim 1 or 2, wherein the number of candidate resources in the set of candidate resources corresponding to the resource selection window is greater than or equal to a number threshold, the number threshold being a minimum number of candidate resources.

4. A method of resource reselection, comprising:

determining a first candidate resource set, wherein the first candidate resource set is a candidate resource set determined after the resources in a resource selection window are subjected to resource selection;

Determining a second candidate resource set according to the first candidate resource set, wherein the second candidate resource set is used for resource reselection of the resources which are reevaluated and/or preemptively judged;

Wherein the second candidate resource set is the first candidate resource set or the third candidate resource set in the case that the re-evaluated and/or preempted judged resource does not satisfy the condition 1, and/or the second candidate resource set is the third candidate resource set in the case that the re-evaluated and/or preempted judged resource does not satisfy the condition 2; the third candidate resource set is a candidate resource set after the target candidate resource is excluded from the first candidate resource, the physical side uplink feedback channel PSFCH resource corresponding to the target candidate resource overlaps with the first reserved resource in the time domain, the resource which is re-evaluated and/or preempted and judged is a resource used for transmitting the data of the first network system, and the first reserved resource is a reserved resource used for transmitting the data of the second network system;

the condition 1 is that PSFCH resources corresponding to the re-evaluated and/or preempted judged resources are not overlapped with the first reserved resources in the time domain;

the condition 2 is that the re-evaluated and/or preemptively judged resource is in the third candidate resource set.

5. The method of claim 4, wherein the step of determining the position of the first electrode is performed,

The first candidate resource set is a candidate resource set after the candidate resources reserved by other terminals and the Reference Signal Received Power (RSRP) measured value is larger than the RSRP threshold value are excluded from the initialized candidate resource set; or alternatively

The first candidate resource set is a candidate resource set after excluding a second reserved resource and a candidate resource reserved by other terminals and having an RSRP measurement value greater than an RSRP threshold value from the initialized candidate resource set, the second reserved resource is a resource on a time unit determined in the resource selection window, the time unit determined in the resource selection window is determined according to a time unit which cannot be received due to half duplex reasons in a resource sensing window of the terminal, and whether resources are reserved or not cannot be judged on the time unit determined in the resource selection window.

6. The method according to claim 4 or 5, characterized in that the method further comprises:

And performing resource reselection in the second candidate resource set.

7. A resource exclusionary device, comprising:

The processing unit is used for determining a resource selection window according to the time unit for triggering the resource selection;

The processing unit is further configured to exclude a target candidate resource from a candidate resource set corresponding to the resource selection window; the target candidate resource is used for transmitting data of a first network system, the target candidate resource corresponds to N physical side uplink feedback channel PSFCH resources, at least K PSFCH resources in the N PSFCH resources are overlapped with a first reserved resource in a time domain, the first reserved resource is reserved for transmitting data of a second network system, N is an integer greater than 1, and K is an integer greater than 0 and less than or equal to N.

8. The apparatus of claim 7, wherein the set of candidate resources corresponding to the resource selection window is any one of the following sets:

Initializing a candidate resource set;

9. The apparatus according to claim 7 or 8, wherein the number of candidate resources in the set of candidate resources corresponding to the resource selection window is greater than or equal to a number threshold, the number threshold being a minimum number of candidate resources.

10. A resource reselection device, comprising:

The processing unit is used for determining a first candidate resource set, wherein the first candidate resource set is a candidate resource set determined after the resources in the resource selection window are subjected to resource selection;

The processing unit is further configured to determine a second candidate resource set according to the first candidate resource set, where the second candidate resource set is used for resource reselection of resources that are re-evaluated and/or preemptively judged;

11. The apparatus of claim 10, wherein the device comprises a plurality of sensors,

12. The device according to claim 10 or 11, wherein,

The processing unit is further configured to perform resource reselection in the second candidate resource set.

13. A resource exclusionary device, comprising: a processor;

the processor is connected to a memory for storing computer-executable instructions that the processor executes to cause the apparatus to implement the method of any one of claims 1-3.

14. A resource reselection device, comprising: a processor;

The processor is connected to a memory for storing computer-executable instructions that the processor executes to cause the apparatus to implement the method of any of claims 4-6.

15. A resource exclusionary device, comprising: a processor and a communication interface;

the communication interface is used for inputting information and/or outputting information;

The processor is configured to execute computer-executable instructions to cause the apparatus to implement the method of any one of claims 1-3.

16. A resource reselection device, comprising: a processor and a communication interface;

the processor is configured to execute computer-executable instructions to cause the apparatus to implement the method of any one of claims 4-6.

17. A computer readable storage medium comprising computer executable instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 6.