CN116456299A

CN116456299A - Resource determination method and communication device

Info

Publication number: CN116456299A
Application number: CN202210022902.XA
Authority: CN
Inventors: 王婷; 苏宏家; 卢磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-01-10
Filing date: 2022-01-10
Publication date: 2023-07-18
Also published as: WO2023130961A1

Abstract

The application discloses a resource determination method and a communication device. The resource determining method comprises the following steps: the first terminal device determines a selection window resource set, and when the proportion of the resources of the selection window resource set excluding the first resource set and the non-recommended resource set is less than X% in the selection window resource set, the first candidate side row resource set is the resources remained after the partial resources of the non-recommended resource set are excluded from the selection window resource set, or the resources remained after the first resource set are further excluded. The resources of the first resource set comprise periodic reserved resources corresponding to the time slots which are not intercepted in the interception window in the selection window resource set. The proportion of the resources in the first candidate side row resource set to the selection window resource set is greater than or equal to X, wherein X is a configured proportion parameter. By the method, the terminal device is ensured to select the sidestream resources in enough candidate resources, and the reliability of communication is improved.

Description

Resource determination method and communication device

Technical Field

The present invention relates to the field of information transmission technologies, and in particular, to a method and a communication device for determining a Sidelink (SL) resource.

Background

In The network of long term evolution (Long Term Evolution, abbreviated as LTE) technology proposed by The third generation partnership project (The 3rd Generation Partnership Project, abbreviated as 3 GPP), the internet of vehicles technology of Vehicle-To-Everything communication (V2X, abbreviated as V2X) is proposed. In a New Radio (NR) system V2X, there are two transmission modes for resource allocation of a transmitting end terminal device, one for allocating a resource mode (mode-1) to a base station and one for a user-selected resource mode (mode-2). In mode-2, the transmission resources of the transmitting end terminal device are independent of the base station. The mode is not limited to network coverage, and the transmitting terminal apparatus may select a resource in the resource pool to communicate using the mode when there is no network coverage. Other terminal devices can assist the transmitting terminal device in selecting resources, and transmit recommended resources or not recommend resources to assist the transmitting terminal device in selecting resources in the resource pool. When the number of the non-recommended resources is too large, the transmitting terminal device cannot reasonably determine the sidestream resources in the resource pool.

Disclosure of Invention

The application provides a resource determining method and a communication device, which are used for improving the reliability of resource selection in a side uplink.

In V2X communication, when a terminal device determines resources by using a user self-selected resource mode, the terminal device may need to consider excluding some resources, for example, non-recommended resources indicated by other terminal devices, resources corresponding to non-listening slots, or resources reserved by other terminal devices, in the process of performing resource exclusion determination on a candidate resource set. When the terminal device excludes the three resources or part of the resources from the initial resource set, the remaining resources may be too small to meet the requirement of the terminal device for resource selection. In the embodiment of the application, the proportion of the number of the resources in the first candidate side row resource set determined from the selection window resource set to the number of the resources in the selection window resource set is greater than or equal to X, wherein X is preconfigured, so that the terminal device is ensured to select the side row resources in enough candidate resources, and the reliability of communication is improved.

In a first aspect, a resource determination method is provided, which may be performed by a first communication device, which may be a communication apparatus or a communication device capable of supporting the functions required by the communication apparatus to implement the method, such as a chip system. The following describes an example in which the communication apparatus is a first terminal device. The method comprises the following steps:

The method comprises the steps that a first terminal device determines a selection window resource set, wherein the selection window resource set is a set of all time-frequency resources in a resource selection window; the first terminal device determines a first candidate side line resource set from the selection window resource set; when the proportion of the resources after the first candidate side line resource set and the non-recommended resource set are excluded from the selection window resource set is smaller than X%, the first candidate side line resource set is the resources remained after the partial resources in the non-recommended resource set are excluded from the selection window resource set, or the first candidate side line resource set is the resources remained after the partial resources in the non-recommended resource set and the first resource set are excluded from the selection window resource set, and the proportion of the resources in the first candidate side line resource set is larger than or equal to X% in the selection window resource set, wherein the resources in the first candidate side line resource set comprise periodic reserved resources corresponding to the non-intercepted time slots in the interception window in the selection window resource set, the non-recommended resource set is the set of the resources used by the first terminal device and indicated by first indication information, and the first indication information is from the second terminal device or a third terminal device; the first terminal device determines a first side line resource in the first candidate side line resource set; the first terminal device transmits sidestream information to a second terminal device on the first sidestream resource.

In the scheme, the proportion of the number of the resources in the first candidate side row resource set determined from the selection window resource set to the number of the resources in the selection window resource set is more than or equal to X%. Where X% is a configured proportion parameter, for example, a parameter configured by a higher layer (high layer) of the terminal device, and optionally, a value such as 15,20,25,30,35 may be adopted. The setting of X is to ensure that the terminal device has enough resources to select when making the sidestream resource determination. By the method, the terminal device is ensured to select the sidestream resources in enough candidate resources, and the reliability of communication is improved.

In one possible implementation manner, when the proportion of the resources of the first resource set and the non-recommended resource set removed by the selection window resource set to the resources of the selection window resource set is greater than or equal to X%, the first candidate side row resource set is the resources remaining after the non-recommended resource set and the first resource set are removed from the selection window resource set. At this time, even if the first resource set and the non-recommended resource set are both excluded from the selection window resource set, the remaining resources still meet the ratio requirement, and the first candidate side row resource set is the resource after the first resource set and the non-recommended resource set are excluded from the selection window resource set. The terminal device may continue to determine sidestream resources for transmitting the policy information in the first candidate sidestream resource set.

In one possible implementation, the resources of the first set of resources include periodic reserved resources in the set of selection window resources corresponding to non-listening slots in a listening window. Alternatively, the sum of the periodic reserved resources corresponding to the non-listening time slots in the listening window in the above-mentioned selection window resource set may also be referred to as a non-listening resource set.

The non-listening time slot in the listening window may be, for example, a time slot in which the terminal device transmits data and is therefore not listening. The period information may be configured in a parameter "sl-resource reservation list", which may configure a plurality of periods, and the periodic reserved resources of the plurality of periods corresponding to the non-listening time slots belong to non-listening resources if they are located in a set of selection window resources, the corresponding set being referred to as a set of non-listening resources.

In a possible implementation manner, the resources of the first resource set further include periodic reserved resources in the selection window resource set, where the periodic reserved resources correspond to first resources that are heard in the listening window, and the first resources are resources of at least one other terminal device. The sum of the periodically reserved resources corresponding to the first resources may also be referred to as a set of conflicting resources, i.e. the resources are occupied or reserved by other terminal devices. In this scheme, the first set of resources further includes a set of conflicting resources on the basis of including the set of non-listening resources. The conflict resource set is composed of conflict resources, and the conflict resources are periodic reserved resources of occupied resources, such as periodic reserved resources corresponding to first resources in a resource selection window, which are detected by the terminal device in the listening window. Optionally, the occupied resource detected in the listening window is a sidestream resource of other terminal devices, for example, sidestream control information of other terminals is detected on the resource.

In one possible implementation, excluding a portion of the resources in the set of non-recommended resources from the set of selection window resources includes: and randomly excluding part of resources in the non-recommended resource set from the selection window resource set. The non-recommended resource set may include a plurality of time-frequency resources, and a specific elimination mode can be random elimination when the non-recommended resources are eliminated, so that the complexity of the terminal device in executing resource elimination is reduced.

In one possible implementation manner, the first terminal device sends collaboration request information to the second terminal device, where the collaboration request information includes priority information of sidedness information, a period of the sidedness information, a subchannel occupied by the sideness information, and a resource selection window of the sidedness information, and the sidedness information is data to be sent by the first terminal device; the first terminal device receives the first instruction information from the second terminal device.

In this scheme, the first terminal transmits, to the other terminal device, cooperation request information for requesting the other terminal device to assist when the first terminal device performs resource selection. Alternatively, the other device is a second terminal device, i.e. a device that performs side-by-side communication with the first terminal device. The first instruction information is used to instruct the non-recommended resource set, and the terminal device that transmits the first instruction information may be a third terminal device in addition to the second terminal device that communicates with the first terminal device. Further, the other terminal device may transmit the instruction information of not recommending the resource set to the first terminal device when the first terminal device does not transmit the cooperation request information. The resource selection effectiveness of the first terminal device is effectively improved through the indication of other terminal devices not recommending resources.

In one placeIn a possible implementation manner, the first candidate sidestream resource set includes N candidate single-slot resources, the selection resource window resource set includes M candidate single-slot resources,and the candidate single-time slot resource is the smallest time-frequency resource unit in the resource set of the selected resource window.

Wherein, N and M are positive integers,expressed as M X% rounded up. That is, when N is greater than or equal to m×x%, the ratio of N to M approaches to X% as much as possible, so that resources unsuitable for sidestream communication, such as resources not recommended, resources occupied or reserved by other terminal devices, and periodic reserved resources in a selection window resource set corresponding to a non-listening time slot, can be excluded as much as possible on the premise of meeting the resource selection constraint of the terminal device. By the method, the terminal device can determine the side resource in the high-quality resource, and accuracy of resource selection is improved.

The candidate single-slot resource may also be called as a candidate single-slot resource, where a slot corresponds to one slot (slot) in the time domain, where L subchannels correspond to the time domain, and L is a positive integer.

In a second aspect, a resource determination method is provided, which may be performed by a first communication device, which may be a communication apparatus or a communication device capable of supporting the functions required by the communication apparatus to implement the method, such as a system on a chip. The following describes an example in which the communication apparatus is a first terminal device. The method comprises the following steps:

The method comprises the steps that a first terminal device determines a selection window resource set, wherein the selection window resource set is a set of all time-frequency resources in a resource selection window; when the proportion of the number of the residual resources after the non-recommended resource set is excluded from the selection window resource set to the number of the resources in the selection window resource set is less than X%, excluding part of the resources in the non-recommended resource set from the selection window resource set to obtain a first candidate side row resource set, wherein the proportion of the resources in the first candidate side row resource set to the selection resource window resource set is greater than or equal to X%, and the non-recommended resource set is a set of resources which are indicated by first indication information and are not recommended to be used by the first terminal device, and the first indication information is from the second terminal device or a third terminal device; the first terminal device determines a first sidestream resource in the first candidate sidestream resource set, and the first terminal device sends sidestream information to a second terminal device on the first sidestream resource.

In the scheme, the proportion of the number of the resources in the first candidate side row resource set determined from the selection window resource set to the number of the resources in the selection window resource set is larger than or equal to X%, so that the terminal device is ensured to select the side row resources in enough candidate resources, and the reliability of communication is improved. Where X% is a configured proportion parameter, for example, a parameter configured by a higher layer (high layer) of the terminal device, and optionally, a value such as 15,20,25,30,35 may be adopted. The setting of X is to ensure that the terminal device has enough resources to select when making the sidestream resource determination.

In a possible implementation manner, the first candidate side line resource set includes N candidate single-slot resources, and the selection resource window resource set includes M candidate single-slot resourcesAnd the candidate single-time slot resource is the smallest time-frequency resource unit in the resource set of the selected resource window.

Wherein, N and M are positive integers,expressed as M X% rounded up. That is, the ratio of N to M approaches X% as much as possible while satisfying N greater than or equal to M X%, so that it is ensured that resources unsuitable for sidestream communication, such as non-recommended resources, are excluded as much as possible while satisfying the resource selection constraint of the terminal device, and other terminal devices already have been providedAnd occupying or reserving resources, and periodically reserving resources in a selection window resource set corresponding to the non-intercepted time slot. By the method, the terminal device can determine the side resource in the high-quality resource, and accuracy of resource selection is improved.

In one possible implementation manner, the removing the part of the resources in the non-recommended resource set from the selection window resource set to obtain the first candidate side line resource set includes: and randomly excluding part of resources in the non-recommended resource set from the selection window resource set to obtain the first candidate side line resource set. The non-recommended resource set may include a plurality of time-frequency resources, and a specific elimination mode can be random elimination when the non-recommended resources are eliminated, so that the complexity of the terminal device in executing resource elimination is reduced.

In one possible implementation, the first indication information from the second terminal device or the third terminal device is received; and determining the non-recommended resource set according to the first indication information, wherein the non-recommended resource set comprises Q candidate single-slot resources, and Q is more than or equal to M (1-X%).

In a third aspect, a sidestream information reception method is provided, which may be performed by a second communication apparatus, which may be a communication device or a communication apparatus capable of supporting functions required for the communication device to implement the method, such as a chip system. The following describes an example in which the communication apparatus is a second terminal device. The method comprises the following steps:

the second terminal device receives the collaboration request information from the first terminal device, wherein the collaboration request information comprises the priority of the side line information, the period information, the occupied sub-channels, the corresponding resource selection window and other information; the second terminal device determines the non-recommended resources based on the cooperation request information and transmits first instruction information for instructing the non-recommended resources to the first terminal device, and the second terminal device determines the first side resources, for example, by receiving the side control information from the first terminal device, determines the first side resources, and receives the side information from the first terminal device on the first side resources. Alternatively, the non-recommended resources herein may include a plurality of resources, for example, the first indication information indicates a set of non-recommended resources.

The second terminal device sends the indication of not recommending the resources to the first terminal device, so that the effectiveness of the first terminal device in the sidestream resource determination process is improved, and the reliability of sidestream communication is improved.

In a fourth aspect, embodiments of the present application provide a communication device, where the communication device has a function of implementing the actions in the method instances of the first aspect or the second aspect, and the beneficial effects may be referred to the description of the first aspect or the second aspect, which is not repeated herein. The communication device may be the first terminal device in the first aspect, or the communication device may be a device, such as a chip or a chip system, capable of supporting the functions required by the first terminal device in the first aspect to implement the method provided in the first aspect.

In one possible design, the communication device comprises corresponding means (means) or modules for performing the method of the first or second aspect. For example, the communication device: including a processing unit (sometimes also referred to as a processing module) and/or a transceiver unit (sometimes also referred to as a transceiver module). These units (modules) may perform the corresponding functions in the method examples of the first aspect or the second aspect, and are specifically referred to in the method examples and are not described herein in detail.

In a fifth aspect, embodiments of the present application provide a communication device, which may be the communication device in the third aspect in the above embodiments, or a chip system provided in the communication device in the third aspect. The communication device comprises a communication interface and a processor, and optionally a memory. The memory is used for storing a computer program or instructions or data, and the processor is coupled with the memory and the communication interface, when the processor reads the computer program or instructions or data, the communication device executes the method executed by the second terminal device in the embodiment of the method.

In a sixth aspect, embodiments of the present application provide a communication device that includes an input-output interface and a logic circuit. The input-output interface is used for inputting and/or outputting information. Logic circuitry is to perform the method described in the first aspect, or logic circuitry is to perform the method described in the second aspect, or logic circuitry is to perform the method described in the third aspect.

In a seventh aspect, embodiments of the present application provide a chip system, where the chip system includes a processor and may further include a memory and/or a communication interface, to implement the method in the first aspect or the second aspect or the third aspect. In one possible implementation, the chip system further includes a memory for storing program instructions and/or data. The chip system may be formed of a chip or may include a chip and other discrete devices.

In an eighth aspect, embodiments of the present application provide a communication system, where the communication system includes a communication device according to the fourth aspect for performing the method of the first aspect and a communication device according to the fifth aspect; or the communication system comprises a communication device according to the fourth aspect for performing the method according to the second aspect and a communication device according to the fifth aspect.

In a ninth aspect, the present application provides a computer readable storage medium storing a computer program which, when executed, implements the method of the first or second or third aspects described above.

In a tenth aspect, there is provided a computer program product comprising: computer program code which, when run, causes the method of the first or second or third aspect described above to be performed.

Drawings

Fig. 1 is a schematic diagram of an application scenario in an embodiment of the present application;

fig. 2 is a schematic diagram of a communication system according to an embodiment of the present application;

fig. 3 is a schematic diagram of an listening window and a resource selection window according to an embodiment of the present application.

Fig. 4 is a schematic diagram of communication resource reservation according to an embodiment of the present application;

FIG. 5 is a flow chart of a communication method provided in an embodiment of the present application;

FIG. 6 is a flow chart of another communication method provided by an embodiment of the present application;

FIG. 7 is a schematic diagram of a resource set relationship provided in an embodiment of the present application;

FIG. 8 is a schematic diagram of another resource set relationship provided by an embodiment of the present application;

FIG. 9 is a schematic diagram of a resource collection relationship provided by an embodiment of the present application;

FIG. 10 is a flow chart of another communication method provided by an embodiment of the present application;

FIG. 11 is a schematic diagram of a resource set relationship provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of a resource collection relationship provided by an embodiment of the present application;

FIG. 13 is a schematic diagram of a resource collection relationship provided by an embodiment of the present application;

FIG. 14 is a schematic diagram of a resource collection relationship provided by an embodiment of the present application;

FIG. 15 is a schematic block diagram of a communication device provided in an embodiment of the present application;

fig. 16 is a schematic block diagram of a terminal device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings.

The technical solution provided in the embodiments of the present application may be applied to a fifth generation (the fifth generation, 5G) mobile communication system, for example, a new wireless system, or applied to a long term evolution (long term evolution, LTE) system, or may also be applied to a next generation mobile communication system or other similar communication systems, which is not specifically limited.

In addition, the technical solution provided in the embodiments of the present application may be applied to a link between a network device and a terminal device, and may also be applied to a link between devices, for example, a device to device (D2D) link. The D2D link may also be referred to as a sidelink, which may also be referred to as a side link, a sidelink, etc. In the embodiment of the present application, the D2D link, or the side link, refers to a link established between devices of the same type, and the meanings of the links are the same. The same type of device may be a link between terminal apparatuses, a link between network apparatuses, a link between relay nodes, or the like, and the embodiment of the present application is not limited thereto.

For example, please refer to fig. 1, which illustrates a network architecture applied in an embodiment of the present application. For the link between the terminal device and the terminal device, there is a third generation partnership project (3 ^rd generation partnership project,3 GPP) release (Rel) -12/13 defined D2D links, as well as internet of vehicles (vehicle to everything, V2X) links defined by 3GPP for internet of vehicles. It should be appreciated that V2X specifically includes vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P) direct communication, and vehicle-to-network (V2N) or V2X links of a vehicle to any entity, including Rel-14/15.V2X also includes Rel-16, which is currently under study by 3GPP, and subsequent releases of V2X links based on NR systems, and the like. V2V refers to communication between vehicles; V2P refers to vehicle-to-person (including pedestrians, cyclists, drivers, or passengers) communication; V2I refers to the communication of the vehicle with an infrastructure, such as a Road Side Unit (RSU) or a network device, and a further V2N may be included in the V2I, V2N refers to the communication of the vehicle with the network device. Among them, RSUs include two types: the terminal type RSU is in a non-moving state because the terminal type RSU is distributed at the roadside, and mobility does not need to be considered; the base station type RSU may provide timing synchronization and resource scheduling for vehicles with which it communicates.

For example, please refer to fig. 2, which is another network architecture applied in the embodiments of the present application. Fig. 1 includes 4 terminal apparatuses and 1 network device. The network device is AN access device, for example, AN Access Network (AN) device, such as a base station, that a terminal apparatus accesses to a mobile communication system by wireless. The network device may also refer to a device that communicates with the terminal apparatus over the air. The network device may include an evolved Node B (also simply referred to as an eNB or e-NodeB) in an LTE system or advanced (long term evolution-advanced, LTE-a); the network equipment may also include a next generation node B (next generation node B, gNB) in the 5G NR system; alternatively, the network device may also include an access node in a wireless-fidelity (Wi-Fi) system, etc.; or the network device may be a relay station, an in-vehicle device, and future evolved public land mobile network (Public Land Mobile Network, PLMN) device, a device in a D2D network, a device in a machine-to-machine (machine to machine, M2M) network, a device in an internet of things (internet of things, ioT) network, or a network device in a PLMN network, etc. The embodiment of the application does not limit the specific technology and the specific device form adopted by the network device.

In addition, the base station in the embodiment of the present application may include a Centralized Unit (CU) and a Distributed Unit (DU), and a plurality of DUs may be centrally controlled by one CU. The CU and the DU may be divided according to functions of protocol layers of a wireless network that they have, for example, functions of a packet data convergence protocol (packet data convergence protocol, PDCP) layer and above are provided at the CU, and functions of protocol layers below PDCP, for example, functions of a radio link control (radio link control, RLC) layer and a medium access control (medium access control, MAC) layer, etc. are provided at the DU. It should be noted that this division of protocol layers is only an example, and may be divided at other protocol layers. The radio frequency device may be remote, not placed in the DU, or integrated in the DU, or partially remote and partially integrated in the DU, which is not limited in any way by the embodiments of the present application. In addition, in some embodiments, a Control Plane (CP) and a User Plane (UP) of the CU may be implemented separately and separated into different entities, which are a control plane CU entity (CU-CP entity) and a user plane CU entity (CU-UP entity), respectively. In this network architecture, CU-generated signaling may be transmitted to the terminal apparatus through a DU, or UE-generated signaling may be transmitted to the CU through a DU. The DU may be passed through to the UE or CU directly through the protocol layer encapsulation without parsing the signaling. In this network architecture, the CU is divided into network devices on the radio access network (radio access network, RAN) side, and the CU may be divided into network devices on the Core Network (CN) side, which is not limited in this application.

The terminal device is a device having a wireless transmitting/receiving function, and is capable of transmitting a signal to or receiving a signal from a network device. The terminal device may include a User Equipment (UE), sometimes referred to as a terminal, access station, UE station, remote station, wireless communication device, user equipment or chip, or the like. The terminal device is used for connecting people, objects, machines and the like, and can be widely used in various scenes, including but not limited to the following scenes: cellular communication, D2D, V X, machine-to-machine/machine-type communications, M2M/MTC), internet of things (internet of things, ioT), virtual Reality (VR), augmented reality (augmented reality, AR), industrial control (industrial control), unmanned driving (self driving), remote medical (remote media), smart grid (smart grid), smart furniture, smart office, smart wear, smart transportation, smart city (smart city), unmanned aerial vehicle, robotic, and other end devices. For example, the terminal device may be a mobile phone (mobile phone), a tablet pc (Pad), a computer with a wireless transceiving function, a VR terminal, an AR terminal, a wireless terminal in industrial control, an entire car, a wireless communication module in an entire car, a car-mounted T-box (Telematics BOX), a road side unit RSU, a wireless terminal in unmanned driving, a smart speaker in IoT network, a wireless terminal device in telemedicine, a wireless terminal device in smart grid, a wireless terminal device in transportation security, a wireless terminal device in smart city, a wireless terminal device in smart home, or the like. By way of example, but not limitation, in embodiments of the present application, the terminal device may also be a wearable apparatus. The wearable device can also be called as a wearable intelligent device or an intelligent wearable device, and is a generic name for intelligently designing daily wear and developing wearable devices, such as glasses, gloves, watches, clothes, shoes, and the like, by applying wearable technology. While the various terminal devices described above, if located on a vehicle (e.g., placed in a vehicle or mounted in a vehicle), can be considered as in-vehicle terminal devices, for example, also referred to as on-board units (OBUs). The terminal device of the present application may be an in-vehicle module, an in-vehicle component, an in-vehicle chip, or an in-vehicle unit that is built in a vehicle as one or more components or units, and the vehicle may implement the method of the present application through the in-vehicle module, the in-vehicle component, the in-vehicle chip, or the in-vehicle unit that is built in.

In the embodiment of the application, the terminal devices support direct communication (PC 5) interface communication, that is, support transmission through a side uplink. The terminal device may further include a relay (relay). Or it is understood that the terminal device can be regarded as being capable of data communication with the base station.

The technical solution provided in the embodiment of the present application may be applied to communications between the network device and the terminal device shown in fig. 2, and may also be applied to communications between the terminal device and the terminal device in fig. 2. In other words, the terminal device in fig. 2 can communicate with or without a network infrastructure. For convenience of description, the terminal device in fig. 2 is taken as an example of a vehicle-mounted terminal device, that is, the embodiment of the present application is taken as an example of application to a V2X scene. The embodiment of the present application does not limit the specific form of the terminal device, and for example, the terminal device may be a mobile phone or the like. In fig. 2, 4 terminal apparatuses are terminal apparatus 1, terminal apparatus 2, terminal apparatus 3, and terminal apparatus 4, respectively. Any one of the 4 terminal devices may send some information of itself, such as position, speed or intention (turning, doubling, or reversing), to the other 3 surrounding terminal devices in a periodically or aperiodically triggered manner, and similarly, the terminal device may also receive information from other terminal devices. The number of terminal devices in fig. 1 is merely an example, and in practical applications, the network device may provide services for a plurality of terminal devices.

Before transmitting information, each terminal apparatus needs to determine the resources used to transmit the information. In V2X, the side-link may communicate over licensed spectrum (licensed spectrum), over unlicensed spectrum (unlicensed spectrum), or both licensed and unlicensed spectrum. Unlicensed spectrum side-uplink related protocol techniques may be collectively referred to as unlicensed spectrum side-links (SL-U). There are mainly two modes of resource allocation for the side-link, one for allocating a resource mode (mode-1) for the network device and one for the terminal device to select a resource mode (mode-2) on its own. The mode-1 is mainly applied to V2X communication under the condition of network coverage, and the base station performs resource allocation in a centralized way according to the reporting condition of the buffer status report (buffer status report, BSR) of the terminal device. In mode-2, the transmission resources of the terminal device are not dependent on the network equipment, the mode is not limited to network coverage, and the terminal device can communicate in this mode regardless of whether there is network coverage.

Taking the side-link between the terminal device 1 and the terminal device 2 in fig. 2 as an example, how communication is performed between the terminal device 1 and the terminal device 2 based on mode-1 and mode-2 will be described. Taking the example of the terminal device 1 transmitting data to the terminal device 2. The concept that may be used in the resource determination process is briefly described below. A listening window: the detection window may also be referred to as a detection window, and corresponds to a section of resources in the time domain, and is used for a terminal device to monitor occupation information of time-frequency resources, and use the occupation period of the time-frequency resources, reservation information of the time-frequency resources, priority, reference signal received power (reference signal receiving power, RSRP) and other information to select subsequent resources. Resource selection window: and the corresponding time-domain resources are used for selecting available time-frequency resources for sending information, and the resources in the selection window are removed through the time-frequency resource occupation information acquired by the listening window, so that the available time-frequency resources are acquired. Side row resources: and the resource used for sending the side line information is positioned in a resource selection window and is generated through a resource selection process.

The allocation of resources under mode-1 may be allocated in a dynamic mode or a preconfigured mode. In the dynamic mode of mode-1, the network device allocates resources to the terminal device 1 by downlink control information (downlink control information, DCI), and after the terminal device 1 receives the DCI, transmits data to the terminal device 2 on the resources. After decoding the data from the terminal device 1, the terminal device 2 transmits feedback information corresponding to the data, for example, an Acknowledgement (ACK) message or a negative acknowledgement (negative acknowledgement, NACK) message, to the terminal device 1. In the mode-1 preconfigured mode, the network device will configure the associated time-frequency resources for side-link transmission through higher layer signaling. The terminal device 1 may send data directly on the resources configured by the higher layer signaling; alternatively, the network device may transmit DCI to activate the configured resources, and after receiving the DCI, the terminal apparatus 1 may transmit data on the resources configured by the higher layer signaling. After receiving the data from the terminal device 1, the terminal device 2 decodes the data and transmits feedback information of the data, for example, an ACK message or a NACK message, to the terminal device 1.

In mode-2, the transmission resources of the terminal apparatus 1 are independent of the network device. The network device can allocate a resource pool (resource pool) in advance, and the terminal apparatus 1 autonomously selects an available resource in the resource pool. For example, the terminal device 1 listens (sense) for the side uplink control information (sidelink control information, SCI) transmitted by other terminal devices in the resource pool within the resource listening window. The listening may include a process of detecting the SCI, or may include a process of detecting the SCI, decoding the SCI, and measuring a reference signal received power of the resource according to an indication of the SCI. The terminal device 1 automatically selects resources within the resource selection window to transmit data according to the result of the resource interception. Assuming that the terminal device 1 triggers the resource selection in the slot n, the resource listening window may be defined as T slots before the resource selection trigger.

Further, the mode-2 mode can be further divided into two modes, mode-2a and mode-2 d.

Under mode-2a, assuming that the terminal device 1 triggers the resource selection in the time slot n, a method 200 for determining the sidelink resources includes the following steps:

step 201: determining a resource selection window [ n+T ] ₁ ，n+T ₂ ]，T _2min ≤T ₂ Less than or equal to the data packet delay budget (packet delay budget, PDB), T ₁ And T ₂ Can be selected by the terminal device within a certain range. As can be seen in particular from fig. 3, the resource selection window is located in the time domain at [ n+t ] ₁ ，n+T ₂ ]A plurality of sub-channels are occupied in the frequency domain. For example, specific T ₁ The numerical value is determined by the user according to the capability on the basis of meeting the requirements of the formula. Wherein->Is arranged with a value of mu and a subcarrier interval _SL The specific correspondence is shown in table 1.

TABLE 1Corresponding relation with subcarrier spacing

Step 202: determining listening windowsWherein T is ₀ Configured by high-level parameters, ">Is arranged with a value of mu and a subcarrier interval _SL The specific correspondence is shown in Table 2. Referring to fig. 3, the listening window is located before the resource selection window in the time domain and does not overlap with the resource selection window, and if the terminal device triggers the resource selection in the time slot n, the resource selection window is located before the time slot n in the time domain.

TABLE 2Corresponding relation with subcarrier spacing

Step 203: a threshold value of a reference signal received power (Reference Signal Received Power, abbreviated RSRP) is determined, the threshold value of RSRP being related to a priority priodx of data to be transmitted by the terminal device and a priority priodx indicated by received side-uplink control information (Sidelink Control Information, abbreviated SCI). The RSRP threshold is used for determining whether to exclude the corresponding resource in the subsequent steps, for example, when the monitored energy value of the relevant resource is greater than the RSRP threshold, the reserved resource corresponding to the resource needs to be excluded.

Step 204: initializing a resource set S _A ，S _A Including all time-frequency resources in the resource selection window. Optionally, S _A May also be referred to as a set of selection window resources. S here _A It is understood that the sum of the resources in the above-mentioned resource pool. Optionally, the time-frequency resource of the resource in the resource selection windowThe source unit may be called a single-slot resource, where the single-slot resource corresponds to a time slot in the time domain and corresponds to L sub-channels (sub-channels) in the frequency domain, where L is a positive integer, and L is less than or equal to the number of sub-channels included in the frequency domain of the resource selection window. Referring specifically to fig. 3, when l=2, the time-frequency resources corresponding to one time slot and 2 subchannels in the figure may be referred to as candidate single-slot resources or single-slot resources, which are time-frequency resource units of resources in the resource set. Optionally, L is configured by an upper layer (high layer) of the terminal device.

Step 205: from S _A The following time-frequency resources are excluded: and detecting all periodic reserved resources in the selection window resource set corresponding to the non-intercepted time slot in the window. The non-listening time slot is understood to mean that the terminal device itself has transmitted information on the time slot, so that no resource listening is performed on the time slot. The periodic reservation resource may be understood as a time-frequency resource corresponding to a time slot of an integer multiple of the period of the interval of the non-listening time slot. All periodic reservation resources can be understood as periodic reservation resources corresponding to all periods configured in the higher layer "sl-resource reservation periodic list". The sum of the resources excluded in this step may be referred to as the set of unauthorised resources.

Step 205a: if S _A And (4) excluding the time-frequency resources, wherein the number of the time-frequency resources remained after the resources are removed is less than X% of the total number of the resources of the resource selection window, and re-executing the initialization of the step (4). Alternatively, the proportion is set primarily for the purpose of ensuring that the terminal device has sufficient resources available for transmitting information.

Step 206: continuing from S _A Excluding time-frequency resources.

The terminal device receives the first-stage side uplink control information and decodes the first-stage side uplink control information successfully, the physical layer side uplink shared channel (Physical Sidelink Shared Channel, PSSCH) of the time-frequency resource reserved by the received first-stage SCI detects the energy of a demodulation reference signal (Demodulation Reference Signal, abbreviated as DMRS) in the PSSCH, and acquires an RSRP measurement result, if the RSRP measurement result is higher than the RSRP threshold determined in the step 3, the method needs to be eliminated: the periodic time-frequency resources corresponding to the time-frequency resources occupied by the first-stage SCI need to be removed at the same time. SCI decoding means that a certain terminal device receives SCI transmitted by other terminal devices in a resource pool and decodes the received SCI. If the measured RSRP is greater than the preset RSRP threshold, the resource may be considered to be already occupied, and the terminal device 1 excludes the candidate resource from the resource selection window. If the measured RSRP is smaller than the preset RSRP threshold, the terminal apparatus 1 may select the resource from the resource selection window as a candidate resource for transmitting data without excluding the resource. The sum of the resources excluded in this step may also be referred to as a conflicting resource set.

Referring to fig. 4, resource a is located in the listening window, the SCI received on resource a indicates a reserved resource, e.g., resource B, while the SCI also indicates the periodicity of resource a and resource B. And (3) the terminal device performs RSRP measurement on the received SCI, and if the measurement result of the RSRP on the resource A and the resource B is higher than the RSRP threshold value in the step (3), the terminal device considers that the resource A and the resource B are occupied and needs to be removed from the resource set. The resource A corresponds to the resource C in the resource selection window, and it can be understood that the resource C is the periodic reserved resource of the resource A, and the resource D is the periodic reserved resource of the resource B, and then continuing from S according to the rule _A Excluding resource C and resource D.

Step 207: if S _A The number of the remained resources in the step 3 is less than X% of the total number of resources in the resource selection window, and the value of X% is configured by the resource pool, then the RSRP threshold is determined by lifting the step 3 (3 dB lifting each time) until S is satisfied _A The remaining resources in (a) are not less than X% of the total resources of the resource selection window. Alternatively, the configuration of X is selected from 20,35, 50.

After step 207, the terminal device may collect the resource set S obtained through the above steps _A Reporting to a higher layer of the terminal device, the higher layer being further from the set S _A And (3) finishing final resource selection and determining the sidestream resources to be used.

The Mode-2d Mode is different from the Mode-2a Mode in that other UEs can also assist the transmitting UE in the Mode-2d ModeAnd selecting row resources, and transmitting a recommended resource set (preferred resource set) or a non-recommended resource set (non-preferred resource set), or transmitting a resource conflict instruction to assist the transmitting end UE in selecting the resources. The other UEs may be target UEs of the sender UE or non-target UEs. The terminal device can further select S from the non-recommended resource set _A And (3) performing resource exclusion.

For example, when the terminal device 1 needs to transmit information to the terminal device 2, the terminal device 2 may assist the terminal device 1 in selecting resources, or other terminal devices may assist the terminal device 1 in selecting resources. When the terminal device 2 assists the terminal device 1 in selecting resources, the terminal device 2 transmits instruction assistance information to the terminal device 1, instructing non-recommended resources, which may be a set of non-recommended resources, that is, a plurality of non-recommended resources included therein.

When the other device instructs the terminal device 1 of not recommending the resource, the resource is not suitable for the terminal device 1, for example, if the terminal device 2 determines that the resource a is occupied and transmits the sidestream information to the terminal device 3, the terminal device 2 determines that the resource a is not recommended by the terminal device 1 and transmits the assistance information to the terminal device 1 to instruct the resource a to be not recommended, so that the terminal device 1 is prevented from selecting the resource a to transmit the sidestream information to the terminal device 2 and causing the conflict.

The terminal device needs to consider the non-recommended resources in the process of determining the candidate resource set by performing the resource exclusion. When the terminal device excludes the non-intercepted resource, the conflict resource and the un-recommended resource from the initial resource set, the obtained residual resources may be too small to meet the condition of the terminal device for selecting the resources. For example, regardless of how the RSRP threshold is raised, the proportion of the obtained remaining resources to the total resources is still less than X% after the above three parts of resources are removed, and the terminal device may not be able to select enough resources from the resources to report to a higher layer due to too few candidate resources.

In the embodiment of the present application, when the ratio of the resources of the selection window resource set excluding the first resource set and the non-recommended resource set to the number of resources of the selection window resource set is less than X%, the partial resources in the non-recommended resource set are excluded from the selection window resource set, the remaining resources are used as the first candidate side line resource set, or the partial resources in the non-recommended resource set and the first resource set are excluded from the selection window resource set, and the remaining resources are used as the first candidate side line resource set. The proportion of the resources in the first side candidate resource set to the selection window resource set is greater than or equal to X%. Therefore, the terminal device can select the lateral resources in enough resources, so that the situation that the terminal device cannot meet the selection constraint when selecting the resources is avoided, and the reliability of the resource selection is improved. The resources of the first resource set comprise periodic reserved resources corresponding to the time slots which are not intercepted in the interception window in the resource set of the selection window.

The following describes in detail the technical solutions provided in the embodiments of the present application with reference to the accompanying drawings.

In the following description, the method is applied to the network architecture shown in fig. 1 or fig. 2, and the side uplink is an example of a link between terminal devices. In addition, the method may be performed by two terminal devices, for example, a first terminal device and a second terminal device. The first terminal device may be a terminal device or a communication device capable of supporting functions required for the terminal device to implement the method, and may be other communication devices, such as a chip system. The second terminal device may be a terminal device or a communication device capable of supporting functions necessary for the terminal device to realize the method, and may be other communication devices such as a chip system. And the implementation manner of the first terminal device and the second terminal device is not limited.

For convenience of description, hereinafter, the method is exemplified by the first terminal apparatus, the second terminal apparatus, that is, the first communication apparatus is exemplified by the first terminal apparatus, the second communication apparatus is exemplified by the second terminal apparatus. If the present embodiment is applied to the network architecture shown in fig. 1, both the first terminal apparatus and the second terminal apparatus described below may be terminal apparatuses in the network architecture shown in fig. 2. The embodiment of the present application is merely performed by the first terminal device and the second terminal device, and is not limited to these two terminal devices, and may include a third terminal device, for example. Hereinafter, the information interacted between the first terminal device and the second terminal device may be data, control information, feedback information, or a combination thereof.

Referring now to fig. 5, a method 500 for determining resources according to an embodiment of the present application is shown.

S501, the first terminal device determines a selection window resource set.

The set of selection window resources is a set of all time-frequency resources in the resource selection window. The resource selection window may occupy time slot [ n+T ] in time domain ₁ ，n+T ₂ ]. Time slot n is the time slot triggered by the resource selection. Alternatively, the first terminal device may determine the resource selection window before determining the set of selection window resources. T (T) ₁ And T ₂ See step 201 for a description of (c).

Optionally, the selection window resource set includes a plurality of time-frequency resources, where a time-frequency resource corresponding to one time slot in a time domain and a time-frequency resource corresponding to L sub-channels in a frequency domain are referred to as a single-time-slot resource, or may be referred to as a candidate single-time-slot resource (candidate single-slot resource), and the candidate single-time-slot resource may be regarded as a minimum time-frequency resource unit of the time-frequency resource in the selection resource set. The selection window resource set is a set of all candidate single-slot resources in the resource selection window, and the number of the candidate single-slot resources included in the selection window resource set may be M.

S502, the first terminal device determines a first candidate side line resource set from the selection window resource sets.

The first terminal device excludes a part of resources from the selection window resource set and determines a first candidate side row resource set. The first candidate side line resource set is used for the first terminal device to finally determine side line resources, and the number of resources in the first candidate side line resource set is required to be more than or equal to X% of the selection window resource set, wherein X is specified by a standard.

When the proportion of the resources of the first resource set and the non-recommended resource set, which are removed by the selection window resource set, to the selection window resource set is less than X%, the first candidate side row resource set is the resources which are remained after removing part of the non-recommended resource set from the selection window resource set, or the first candidate side row resource set is the resources which are remained after removing part of the non-recommended resource set and the first resource set from the selection window resource set. The method comprises the following steps:

and A, when the proportion of the resources of the selection window resource set excluding the first resource set and the non-recommended resource set to the selection window resource set is less than X%, the first candidate side line resource set is the resource remained after the partial resources of the non-recommended resource set are excluded from the selection window resource set.

The resources of the first resource set include periodic reserved resources corresponding to the time slots which are not monitored in the listening window in the selection window resource set, or the resources of the first resource set include periodic reserved resources corresponding to the time slots which are not monitored in the listening window in the selection window resource set and periodic reserved resources corresponding to the first resources which are monitored in the listening window in the selection window resource set, and the first resources are resources of at least one other terminal device.

And B, when the proportion of the resources of the selection window resource set excluding the first resource set and the non-recommended resource set to the selection window resource set is less than X%, the first candidate side line resource set is the resources which are left after the partial resources of the non-recommended resource set and the first resource set are excluded from the selection window resource set.

The set of periodic reservation resources in the set of selection window resources corresponding to the non-listening slots in the listening window may be referred to as a non-listening set of resources. The resource is a periodic reserved resource in a selection window resource set corresponding to an unobserved time slot in the listening window. Referring to fig. 3, for example, a first terminal device is in a certain time slot, such as time slot n, in the listening window ₁ Not to listen on, time slot n ₁ Located in the time domainIs a kind of medium. With period T, the periodic time slot corresponding to the non-intercepted time slot isn ₁ +t i, where i is an integer, e.g., i=0, 1,2,3, etc., the resources corresponding to those slots whose periodic slots fall within the resource selection window also belong to the set of unashed resources.

The set of periodic reserved resources of the set of selection window resources corresponding to the first resource heard in the listening window may be referred to as a set of conflicting resources, where the first resource may be understood as a resource occupied or reserved by at least one other terminal device, i.e. a resource that would cause a conflict if used. For example, the first terminal device decodes the SCI successfully on the first resource, and the SCI indicates the reserved time-frequency resource, and if the measurement result of the RSRP on the time-frequency resource is greater than a certain threshold, the periodic time-frequency resource in the selection window corresponding to the reserved resource is considered to be occupied by other terminal devices and needs to be excluded, so that the first resource and the periodic resource corresponding to the reserved resource indicated on the SCI where the first resource is located belong to the conflict resource set. Referring to fig. 4, the first resource may be a resource a, and the first resource is a resource of other terminal apparatuses. Resource a is located in the listening window and SCI received on resource a indicates a reserved resource, e.g., resource B, while SCI also indicates the periodicity of resource a and resource B. The terminal device performs RSRP measurement on the SCI where the resource a is located, and if the measurement result is higher than the RSRP threshold value in step 3, the terminal device needs to periodically exclude the resource a and the resource B from the resource set. The resource A corresponds to the resource C in the resource selection window, and it can be understood that the resource C is the periodic reserved resource of the resource A, and the resource D is the periodic reserved resource of the resource B, and then according to the rule, the resource A is the periodic reserved resource of the resource B, and the resource A is the periodic reserved resource of the resource B _A Excluding resource C and resource D.

The set of non-recommended resources may include a plurality of non-recommended resources, that is, resources that are indicated to the first terminal device by other terminal devices, for example, the second terminal device, to be used by the first terminal device without being recommended. The first terminal device is called UEB and the second terminal device is called UEA. The reason for the non-recommendation may be that the UE a is to occupy the resource for information transmission with other UEs, or that the UE a perceives that the resource is occupied, and thus sends first indication information to the UE a, indicating that the resource is not recommended for use by the UE b. The ue a may be a receiving end of the data to be sent by the ue b, and at this time, the ue a determines an un-recommended resource set by listening or sensing, and sends indication information to the ue b to indicate the un-recommended resource set, so that the ue b can be prevented from selecting the un-recommended resource as a resource for side communication, and the reliability of communication is further improved by the indication of the un-recommended resource set.

Optionally, the first indication information is from the second terminal device or other terminal devices, e.g. the third terminal device. The second terminal device and the first terminal device have sidestream information transmission, for example, a communication pair. There may be no communication between the third terminal device and the first terminal device, and the third terminal device assists the first terminal device in selecting resources, so that the first instruction information is transmitted to the first terminal device.

In the case a, when the proportion of the resources of the selection window resource set excluding the first resource set and the non-recommended resource set to the selection window resource set is less than X%, the first candidate side row resource set is the resources remaining after excluding part of the non-recommended resource set from the selection window resource set. The first terminal device does not exclude the non-interception resources after judging that the selection window resource set excludes the non-interception resource set and the non-recommendation resource set does not meet the selection condition, only excludes part of the resources in the non-recommendation resource set, and obtains a first candidate side row resource set after excluding, wherein the set meets the selection condition, namely, the proportion of the number of the resources in the selection window to the number of the resources is more than or equal to X%.

Excluding part of the resources from the set of non-recommended resources from the set of selection window resources includes: and randomly excluding part of the resources in the non-recommended resource set from the selection window resource set. The first terminal device performs random exclusion when excluding resources in the non-recommended set of resources. For example, the non-recommended resource set includes resource 1, resource 2, resource 3, and resource 4, and the first terminal apparatus may arbitrarily select and exclude resources until the remaining resources satisfy the selection condition. For example, excluding resource 1, resource 2, and resource 4, a first set of side candidate resources is obtained.

In the case B, when the first resource set is an uninterested resource set, and the ratio of the resources of the selection window resource set excluding the uninterested resource set and the non-recommended resource set to the selection window resource set is less than X%, the first candidate side line resource set is the resources remaining after excluding part of the resources of the non-recommended resource set and the non-intercepted resource set from the selection window resource set. Specifically, the first terminal device excludes all of the non-listening resource set from the selection window resource set, and randomly excludes part of the resources in the non-recommended resource set until the number of the remaining resources meets the selection condition. In this way, the first terminal device firstly excludes the resources in the non-interception resource set on the premise of meeting the resource selection condition, then excludes the resources in the non-recommendation resource set, and excludes as many resources which are not suitable for communication as possible, thereby ensuring the quality of the resources in the candidate resource set and being beneficial to improving the reliability of communication.

It will be appreciated that in this case, all of the set of unaesthetic resources are preferentially excluded and then a part of the set of non-recommended resources is excluded, provided that the remaining resources can meet the selection condition. For example, when the first terminal device has removed all of the non-listening resource set and some of the non-recommended resource set, the remaining number of resources is greater than X% of the number of resources in the selected resource window, and if the random removal of the non-recommended resource is continued, the remaining number of resources is less than X% of the number of resources in the resource window, the first terminal device stops the removal of the non-recommended resource, and obtains the first side candidate time-frequency resource. Alternatively, the number of first side candidate time-frequency resources may be exactly equal to X% of the number of resources in the selection resource window.

In the case B, when the first resource set includes an uninterruptable resource set and a conflict resource set, the selection window resource set excludes the uninterruptable resource set, and when the proportion of the resources after the conflict resource set and the non-recommended resource set in the selection resource window resource set is less than X%, the first candidate side line resource set excludes the uninterruptable resource set from the selection window resource set, excludes the conflict resource set, and randomly excludes the resources remaining after the part of the resources in the non-recommended resource set.

In the first candidate side line resource set obtained after the eliminationThe proportion of the resources in the selection window resource set is greater than or equal to X%. It should be understood that, herein, the proportion of the resources of the set a to the resources of the set B refers to the proportion of the number of the resources in the set a to the number of the resources in the set B, that is, the proportion of the number of the resources in the first candidate side row resource set to the number of the resources in the selection window resource set. Specifically, the first candidate side line resource set obtained after the resources are removed from the selection window resource set comprises N candidate single-slot resources, the selection window resource set comprises M candidate single-slot resources,represents an upward rounding, e.g. >Wherein the single-time slot resource is the smallest time-frequency resource unit in the resource set of the selected resource window.

The set of non-recommended resources is a set of resources not recommended for use by the first terminal device indicated by first instruction information from the second terminal device or the third terminal device.

Optionally, when the proportion of the resources of the window resource set excluding the first resource set and the non-recommended resource set to the window resource set is greater than or equal to X%, the first candidate side row resource set is the resources remaining after excluding all the resources of the non-recommended resource set and the first resource set from the window resource set. That is, when more resources remain after the first resource set and the non-recommended resource set are removed from the resources in the selection window resource set and enough terminal devices perform resource selection, the resources in the non-recommended resource set and the first resource set can be removed from the selection window resource set, and the remaining resources are used as the first candidate side line resource set.

S503, the first terminal device determines a first side line resource in the first candidate side line resource set.

The first terminal device further determines a first side-line resource for communication. For example, the resource set obtained through the above steps is reported to a higher layer (high layer) of the first terminal device, and the higher layer completes final resource selection from the first candidate side row resource set.

S504, the first terminal device transmits side line information to the second terminal device on the first side line resource.

The second terminal device receives sidestream information from the first terminal device on the first sidestream resource.

According to the method, the proportion of the number of the resources in the first candidate side line resource set determined from the selection window resource set to the number of the resources in the selection window resource set is greater than or equal to X%, so that the terminal device is ensured to select the side line resources in enough candidate resources, and the reliability of communication is improved.

Referring now to fig. 6, another method 600 for determining resources provided by embodiments of the present application is shown.

S601, the cooperation request information is transmitted to the second terminal apparatus.

The cooperation request information transmitted to the second terminal apparatus is used to request first instruction information of the second terminal apparatus. I.e. requesting the second terminal device to perform the cooperation in the resource selection procedure.

The collaboration request information comprises priority information of side line information, period information, occupied sub-channels and the like. For example, when the first terminal device needs to transmit the first data to the second terminal device. The collaboration request information sent by the first terminal device to the second terminal device comprises priority information of first data, a period of the first data, a sub-channel occupied by the first data and a resource selection window of the first data, wherein the first data is data to be sent by the first terminal device.

The second terminal device performs mode-2 resource selection according to the information in the collaboration request information sent by the first terminal device to determine non-recommended resources.

S602, receiving first indication information from the second terminal device; the first indication information indicates that the set of resources is not recommended.

The steps S601 and S602 are optional steps, and the first terminal apparatus may acquire the instruction information of the non-recommended resource from the terminal apparatus other than the second terminal apparatus. For example, the first instruction information may be received from the third terminal apparatus without transmitting the cooperation request information to the second terminal apparatus or the third terminal apparatus. The resource selection assistance provided by the third terminal device is now autonomous and not requested by the first terminal device.

S603, the first terminal device determines the non-recommended resource set according to the first indication information.

The first terminal device may include a plurality of resources in the set of non-recommended resources determined according to the first indication information.

S604, the first terminal apparatus determines a selection window resource set.

See in particular the description in S501.

S605, the first terminal device determines a first candidate side row resource set from the selection window resource sets.

See for details the description in S502.

When the proportion of the resources of the first resource set and the non-recommended resource set, which are removed by the selection window resource set, to the selection window resource set is less than X%, the first candidate side row resource set is the resources which are remained after removing part of the non-recommended resource set from the selection window resource set, or the first candidate side row resource set is the resources which are remained after removing part of the non-recommended resource set and the first resource set from the selection window resource set. The following situations can be distinguished:

The first set of resources is either a set of non-listening resources or the first set of resources is the sum of a set of non-listening resources and a set of conflicting resources.

Referring to FIG. 7, a set of selection window resources is denoted S _{A_init} The set of non-recommended resources is denoted as S _NP ，S _{NP_1} For a part of the resources in the non-recommended set of resources. When (when)Or-> At the time from S _{A_init} Excluding part of the resources in the set of non-recommended resources, e.g. S _{NP_1} And (2) and

And B1, the first resource set is an unauthenticated resource set, and when the ratio of the resources of the selection window resource set excluding the unauthenticated resource set and the non-recommended resource set to the selection window resource set is less than X%, the first candidate side row resource set is the resources which are remained after the partial resources of the non-recommended resource set and the first resource set are excluded from the selection window resource set.

As shown in fig. 8, the set of selection window resources is denoted as S _{A_init} The set of non-listening resources is denoted S _B The set of non-recommended resources is denoted as S _NP ，S _{NP_1} A subset of the set of non-recommended resources may also be referred to as a portion of the set of non-recommended resources. When (when)Then from S _{A_init} Middle exclusion of S _B And exclude S _NP Of (a), e.g. S _{NP_1} Until the selection condition is satisfied, (-A)>

The case b2, the first resource set includes an unaware resource set and a conflict resource set, and the first candidate side line resource set is a resource remaining after excluding a part of resources in the non-recommended resource set and the first resource set from the selection window resource set. When the proportion of the resources of the selection window resource set excluding the non-interception resource set, the conflict resource set and the non-recommendation resource set is less than X%, the first candidate side line resource set is the resource which is left after excluding part of the non-recommendation resource set, the non-interception resource set and the conflict resource set from the selection window resource set.

As shown in fig. 9, the set of conflicting resources is denoted S _C ，Then from S _{A_init} Middle exclusion of S _B Exclude S _C And exclude S _NP Of (a), e.g. S _{NP_1} Until the selection condition is met,

s606, the first terminal device determines a first side line resource in the first candidate side line resource set.

For a specific description, see S503.

S607, the first terminal apparatus transmits side line information to the second terminal apparatus on the first side line resource.

For a specific description, see S504.

Alternatively, the steps of this embodiment may be combined with some of the steps 201-207 of the method 200 described above. For example, step S605 may be added to method 200 as step S206a, used in combination with other steps. At least one of steps S601, S602, S603 may also be added before 201.

Referring now to fig. 10, another method 700 for determining resources provided in an embodiment of the present application is shown.

S701, the cooperation request information is transmitted to the second terminal apparatus.

See for details the relevant description of S601.

S702, receiving first indication information from the second terminal device; the first indication information indicates that the set of resources is not recommended.

The steps S701 and S702 are optional steps. See for details the description of S602.

S703, the first terminal device determines the non-recommended resource set according to the first indication information.

See the relevant description of S603.

The first terminal device determines an un-recommended resource set according to the first indication information, wherein the un-recommended resource set comprises Q candidate single-slot resources, and Q is more than or equal to M (1-X%). Wherein M is the number of candidate single-slot resources in the selection window resource set, X% is a configured parameter, and X can be 15,20,25,30,35 and other values.

S704, the first terminal device determines a selection window resource set.

See for details the description in S501 and S604.

The selection resource window resource set includes M candidate single-slot resources, and the description of the candidate single-slot resources can be found in the method 200 or the method 500,600.

S705, the first terminal device determines a first candidate side row resource set from the selection window resource sets.

When the ratio of the number of the residual resources in the selection window resource set to the number of the resources in the selection window resource set after the non-recommended resource set is removed by the first terminal device is less than X%, removing part of the resources in the non-recommended resource set from the selection window resource set to obtain a first candidate side row resource set, wherein the ratio of the resources in the first candidate side row resource set to the selection window resource set is greater than or equal to X%;

When Q > M (1-X%), the residual resources are less than M X% after all the resources in the non-recommended resource set are discharged from the selection window resource set, so that the residual resources do not meet the resource selection condition. That is, the number of non-recommended resources is large, and the first terminal device cannot satisfy the selection constraint even if only all resources in the non-recommended resource set are excluded on the premise that the non-interception resources are not excluded and the conflict resources are not excluded. In this case, the first terminal apparatus preferentially excludes the non-recommended resources, so that the remaining first candidate sidestream resources satisfy the selection condition, and the reliability of resource selection is improved.

The first candidate side row resource set comprises N candidate single-slot resources, and the selection resource window resource set comprises M candidate single-slot resources, whereinThat is, after the elimination, the number of resources in the first candidate sidestream resource set meets the selection condition, so that the first terminal device can conveniently select sidestream resources.

Optionally, when the ratio of the number of the remaining resources in the selection window resource set after excluding the non-recommended resource set to the number of the resources in the selection window resource set is greater than or equal to X%, the first terminal device excludes all the resources in the non-recommended resource set from the selection window resource set to obtain a first candidate side line resource set, and the ratio of the resources in the first candidate side line resource set to the selection window resource set is greater than or equal to X%. That is, after the first terminal device excludes all the resources in the non-recommended resource set, the remaining resources also satisfy the selection condition, and then all the non-recommended resources are excluded.

The step of obtaining the first candidate side row resource set by excluding part of the resources in the non-recommended resource set from the selection window resource set comprises the following steps: and randomly excluding part of resources in the non-recommended resource set from the selection window resource set to obtain a first candidate side row resource set.

Referring to FIG. 7, a set of selection window resources is denoted S _{A_init} The set of non-recommended resources is denoted as S _NP ，S _{NP_1} For a part of the resources in the non-recommended set of resources. When (when)From S _{A_init} Excluding part of the resources in the set of non-recommended resources, e.g. S _{NP_1} ，/>

S706, the first terminal device determines a first side line resource in the first candidate side line resource set.

For a specific description, see S503.

S707, the first terminal apparatus transmits side line information to the second terminal apparatus on the first side line resource.

For a specific description, see S504.

Alternatively, the steps of this embodiment may be combined with some of the steps 201-207 of the method 200 described above. For example, step S705 may be added to the method 200 as step S204a, used in combination with other steps. At least one of steps S701, S702, S703 may also be added before 201.

Another resource determination method 800 provided in the embodiments of the present application. 800 may be combined with the method 200 described above. For example, the following steps may be added before step 201:

S801, cooperation request information is transmitted to the second terminal apparatus.

S802, receiving first indication information from the second terminal device; the first indication information indicates that the set of resources is not recommended.

S803, the first terminal device determines the non-recommended resource set according to the first indication information.

In connection with steps 201-206 of method 200, in step 205, the set of non-listening resources is excluded from the set of selection window resources.

In step 206, the first terminal device determines that collision-free resources need to be excluded according to the RSRP threshold value in step 203.

After step 206, the non-recommended set of resources continues to be excluded from the set of selection window resources. And judge the selected window resourceReinitializing according to the step 204 if the number of the resources left after excluding the non-interception resource set and the non-recommendation resource set in the source set is less than X% of the number of the selection window resource sets, and directly randomly excluding part of the resources in the non-recommendation resource set in the initialized selection window resource set until the number of the resources left in the selection window resource set or the number of the resources in the first candidate side line resource set is equal toThen stopping to continue to exclude non-recommended resources.

By the method, after excluding the non-interception resource set and the non-recommended resource set, the first terminal device determines that the selection condition is not met, initializes the selection window resource set, and only performs random exclusion of the non-recommended resource until the selection condition is met. The reliability of sidestream resource selection is ensured.

Another resource determination method 900 provided in the embodiments of the present application. 900 may be combined with the method 200 described above. For example, the following steps may be added before step 201:

s901, the cooperation request information is transmitted to the second terminal apparatus.

S902, receiving first indication information from the second terminal device; the first indication information indicates that the set of resources is not recommended.

S903, the first terminal device determines the non-recommended resource set according to the first indication information.

In connection with steps 201-206 of method 200, the following steps may be added after step 206:

step 206a: if the available resources are greater than X% of the selection window resource set after excluding the resources in step 5, step 6 and non-recommended resources from the selection window resource set, continuing to exclude the non-recommended resources, otherwise, temporarily not excluding the non-recommended resources until the condition in step 7 is satisfied, recovering the portion of the resources that are excluded in step 6 but not belong to the non-recommended resource set, and randomly excluding the non-recommended resources from the selection window resource set until the remaining resources are satisfied to be equal to X% of the total resources of the resource selection window. It will be appreciated that restoration here refers to re-adding a portion of the resources that have been excluded in step 6 to the set of selection window resources.

Described in connection with FIG. 11, the set of selection window resources is denoted S _{A_init} The set of non-listening resources is denoted S _B The set of non-recommended resources is denoted as S _NP ，S _{NP_1} For part of the resources in the set of non-recommended resources, which may also be referred to as a subset of the set of non-recommended resources, S _{C_1} Is a set of conflicting resources. S here _{C_1} Refers to judging S in step 206a _{A_init} -S _B -S _NP -S _C S _{A_init} * At X%, S is not excluded _NP Step 207 is directly performed, i.e. decision S _{A_init} -S _B -S _C And S is equal to _{A_init} * If the selection condition is not satisfied, the RSRP threshold is raised by 3dB each time, for example, when the threshold takes a certain value, the corresponding excluded conflict resource set is S _{C_1} And S is _{A_init} -S _B -S _{C_1} ≥S _{A_init} * X, resume S _{C_1} Not belonging to the non-recommended resource set S _NP And on the basis of this randomly excluding part of the resources of the set of non-recommended resources until the selection condition S is fulfilled _{A_init} -S _B -S _{D_1} -S _{NP_1} ≥S _{A_init} * X, wherein S _{D_1} ＝S _{C_1} ∩S _NP 。

By the method, the first terminal device excludes the conflict resource set and the intersection of the non-recommended resource set on the basis of excluding the non-interception resource set, the intersection of the two sets represents that the conflict exists in the resources determined through interception and other terminal devices assist in determining that the resources are not suitable as communication resources, and some non-recommended resources are randomly excluded until the selection condition is met. The reliability of sidestream resource selection is ensured.

Optionally, step 206a may further be:

if the corresponding resources in the step 5 and the step 6 and the non-recommended resources are removed from the selection window resource set, remaining available resources are larger than X% of the selection window resource set, and if not, the non-recommended resources are removed continuously, otherwise, the part of the resources which are removed in the step 6 but do not belong to the non-recommended resource set is restored, the step 7 is continuously executed until the step 7 meets the condition, and the non-recommended resources are removed randomly from the selection window resource set until the fact that the remaining resources are equal to X% of the selection window resource set is met. It will be appreciated that restoration here refers to re-adding a portion of the resources that have been excluded in step 6 to the set of selection window resources.

Described in connection with FIG. 12, the set of selection window resources is denoted S _{A_init} The set of non-listening resources is denoted S _B The set of non-recommended resources is denoted as S _NP ，S _{NP_1} For part of the resources in the set of non-recommended resources, which may also be referred to as a subset of the set of non-recommended resources, S _C Is a set of conflicting resources. Judging S in step 206a _{A_init} -S _B -S _NP -S _C ＜S _{A_init} * At X%, S is not excluded _NP First restore S _C Not of S _NP In step 7), namely, the following determination is made: s is S _{A_init} -S _B -S _D ≥S _{A_init} * X, wherein S _D ＝S _C ∩S _NP If the condition is satisfied, at S _{A_init} -S _B -S _D ＞S _{A_init} * At X%, continuing to randomly exclude a part of the non-recommended resources, and if the condition is not satisfied, raising the RSRP threshold in 207 until S _{A_init} -S _B -S _C ∩S _NP ≥S _{A_init} * X, randomly excluding a part of resources in the non-recommended resource set, and meeting S _{A_init} -S _B -S _C ∩S _NP -S _{NP_1} ≥S _{A_init} *X％。

Another resource determination method 1000 provided in the embodiments of the present application. 1000 may be combined with the method 200 described above. For example, the following steps may be added before step 201:

In connection with steps 201-207 of method 200, the following steps may be added after step 205 a:

step 205b: if the time-frequency resources are less than X% of the selection window resource set after the non-recommended resources are excluded from the remaining resources in the current selection window resource set, and the time-frequency resources after the non-recommended resources are excluded from the initial selection window resource set (i.e., the selection window resource set in step 204) are greater than or equal to X% of the total resources of the resource selection window, the resources excluded in step 5 are recovered in this step until the time-frequency resources after the non-recommended resources are excluded from the initialization selection window resource set and the resources in step 5 are equal to X% are satisfied.

Described in connection with FIG. 13, the set of selection window resources is denoted S _{A_init} The set of non-listening resources is denoted S _B The set of non-recommended resources is denoted as S _NP ，S _{B_1} Is part of, or is referred to as a subset of, the set of non-listening resources. In 205b, if A _{A_init} -S _B -S _NP ＜S _{A_init} * X and S _{A_init} -S _NP ≥S _{A_init} * X, recovering part of the non-intercepted resources, excluding only a subset of the non-intercepted resources until S _{A_init} -S _NP -S _{B_1} ≥S _{A_init} *X％。

Optionally, step 205b may further be:

step 205b: if the time-frequency resource is less than X% of the total resources of the resource selection window after the non-recommended resources are excluded from the remaining resources in the current selection window resource set, and the time-frequency resource is greater than or equal to X% of the total resources of the resource selection window after the non-recommended resources are excluded from the initial selection window resource set (i.e., the selection window resource set in step 204), the resources which are excluded from step 5 but not belong to the non-recommended resources are recovered in this step until the time-frequency resource which is equal to X% after the non-recommended resources are excluded from the initial selection window resource set and the resources in step 5 are satisfied.

Described in connection with FIG. 14, the set of selection window resources is denoted S _{A_init} The set of non-listening resources is denoted S _B The set of non-recommended resources is denoted as S _NP ，S _{B_1} Is part of or called a subset of the set of non-listening resources, S _C Is a set of conflicting resources. Judging S in step 205b _{A_init} -S _B -S _NP ＜S _{A_init} * X and S _{A_init} -S _NP ≥S _{A_init} * X, first resume S _B Not of S _NP And then randomly excluding a part of the resources in the non-recommended resource set until S is satisfied _{A_init} -S _B ∩S _NP -S _{B_1} ≥S _{A_init} *X％。

After the step 205b is finished, other steps in the method 200, for example, steps 206 and 207 may be optionally combined, and after step 206 and before step 207, steps in the other resource determining methods may be combined, for example, steps S605, S705, or step 206a in the method 900.

It should be noted that the execution body illustrated in fig. 5 or fig. 6 or fig. 7 is only an example, and the execution body may also be a chip, a chip system, or a processor that supports the execution body to implement the method shown in fig. 3 or fig. 7, which is not limited in this application.

Method embodiments of the present application are described above with reference to the accompanying drawings, and device embodiments of the present application are described below. It will be appreciated that the description of the method embodiments and the description of the apparatus embodiments may correspond to each other and that accordingly, non-described parts may be referred to the previous method embodiments. The steps in the different communication methods in the above embodiments may be combined with each other.

It will be appreciated that in the foregoing embodiments of the methods and operations performed by the first terminal device may also be performed by components (e.g., chips or circuits) that may be used in the first terminal device, and that the methods and operations performed by the second terminal device may also be performed by components (e.g., chips or circuits) that may be used in the second terminal device.

The above description has been presented mainly from the point of interaction between the network elements. It will be appreciated that each network element, e.g. the transmitting device or the receiving device, in order to implement the above-mentioned functions, comprises corresponding hardware structures and/or software modules for performing each function. Those of skill in the art will 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 may divide the function modules of the transmitting end device or the receiving end device according to the above method example, for example, each function module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation. The following description will take an example of dividing each functional module into corresponding functions.

The apparatus for implementing the above method in the embodiments of the present application is described below with reference to the accompanying drawings. Therefore, the above contents can be used in the following embodiments, and repeated contents are not repeated.

Fig. 15 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device 1500 may be the whole vehicle or a part of the whole vehicle, such as a T-box, in fig. 1, or the terminal device 1, the terminal device 2, the terminal device 3 or the terminal device 4 in fig. 2, for implementing the method for the terminal device in the above method embodiment. Specific functions can be seen from the description of the method embodiments described above.

The communications device 1500 includes one or more processors 1501. The processor 1501 may also be referred to as a processing unit, and may implement certain control functions. The processor 1501 may be a general purpose processor or a special purpose processor, etc. For example, it includes: a baseband processor, a central processing unit, an application processor, a modem processor, a graphics processor, an image signal processor, a digital signal processor, a video codec processor, a controller, a memory, and/or a neural network processor, etc. The baseband processor may be used to process communication protocols as well as communication data. The central processor may be used to control the communications device 1500, execute software programs, and/or process data. The different processors may be separate devices or may be integrated in one or more processors, e.g., integrated on one or more application specific integrated circuits.

Optionally, the communication device 1500 includes one or more memories 1502 for storing instructions 1504 that can be executed on the processor to cause the communication device 1500 to perform the methods described in the method embodiments above. Optionally, the memory 1502 may also store data. The processor and the memory may be provided separately or may be integrated.

Alternatively, the communication device 1500 may include instructions 1503 (sometimes also referred to as code or program), which instructions 1503 may be executed on the processor, causing the communication device 1500 to perform the methods described in the above embodiments. The processor 1501 may store data.

Optionally, the communication device 1500 may also include a transceiver 1505 and an antenna 1506. The transceiver 1505 may be referred to as a transceiver unit, a transceiver circuit, a transceiver, an input-output interface, etc. for implementing the transceiver functions of the communication device 1500 via the antenna 1506.

Optionally, the communication device 1500 may further include one or more of the following: wireless communication modules, audio modules, external memory interfaces, internal memory, universal serial bus (universal serial bus, USB) interfaces, power management modules, antennas, speakers, microphones, input/output modules, sensor modules, motors, cameras, or displays, among others. It is to be appreciated that in some embodiments, the UE 1500 may include more or fewer components, or some components integrated, or some components split. These components may be hardware, software, or a combination of software and hardware implementations.

The processor 1501 and transceiver 1505 described herein may be implemented on an integrated circuit (integrated circuit, IC), analog IC, radio frequency integrated circuit (radio frequency identification, RFID), mixed signal IC, application specific integrated circuit (application specific integrated circuit, ASIC), printed circuit board (printed circuit board, PCB), or electronic device, among others. The communication apparatus described herein may be implemented as a stand-alone device (e.g., a stand-alone integrated circuit, a mobile phone, etc.), or may be part of a larger device (e.g., a module that may be embedded in another device), and reference may be made specifically to the foregoing description of the terminal apparatus and the network device, which is not repeated herein.

The present embodiment provides a terminal device, or referred to as a terminal device, which may be used in the foregoing embodiments (for convenience of description, referred to as UE). The terminal device comprises corresponding means, units and/or circuits to implement the UE functionality described in the embodiments shown in fig. 5, 6 and/or 10. For example, the terminal device includes a transceiver module for supporting the terminal device to implement the transceiver function, and a processing module for supporting the terminal device to process the signal.

Fig. 16 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

The terminal device 1600 may be adapted for use in the system shown in fig. 1 and 2. For ease of illustration, fig. 16 shows only the main components of terminal device 1600. As shown in fig. 13, the terminal device 1600 includes a processor, a memory, a control circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the entire terminal device 1600, executing software programs, and processing data of the software programs. The memory is mainly used for storing software programs and data. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna 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, microphones, keyboards, etc. are mainly used for receiving data input by a user and outputting data to the user.

Taking the terminal device 1600 as a mobile phone for example, after the terminal device 1600 is powered on, the processor may read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program. When data is required to be transmitted wirelessly, the processor carries out baseband processing on the data to be transmitted and then outputs a baseband signal to 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 transmitted to the terminal device 1600, the control circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.

Those skilled in the art will appreciate that for ease of illustration, only one memory and processor is shown in fig. 16. In some embodiments, terminal device 1600 may include multiple processors and memory. 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 regard.

As an alternative implementation, 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 entire terminal device 1600, execute a software program, and process the data of the software program. The processor in fig. 16 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. Terminal device 1600 may include multiple baseband processors to accommodate different network formats, terminal device 1600 may include multiple central processors to enhance its processing capabilities, and various components of terminal device 1600 may be connected via various buses. The baseband processor may also be expressed as a baseband processing circuit or a 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 the storage unit in the form of a software program, which is executed by the processor to realize the baseband processing function.

In one example, an antenna and a control circuit having a transmitting and receiving function may be regarded as the transmitting and receiving unit 1610 of the terminal device 1600, and a processor having a processing function may be regarded as the processing unit 1620 of the terminal device 1600. As shown in fig. 13, the terminal device 1600 includes a transceiver unit 1610 and a processing unit 1620. The transceiver unit may also be referred to as a transceiver, transceiver device, etc. Alternatively, the device for implementing the receiving function in the transceiver 1610 may be regarded as a receiving unit, and the device for implementing the transmitting function in the transceiver 1610 may be regarded as a transmitting unit, that is, the transceiver 1610 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the transmitting unit may be referred to as a transmitter, a transmitting circuit, etc.

Those of ordinary skill in the art will appreciate that the elements and steps of the examples described in connection with the embodiments disclosed herein can be implemented as electronic hardware, or as a combination of computer software and electronic hardware. Whether such functionality is implemented as hardware or software 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.

In the several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the units is merely a logical functional division, and units illustrated as separate units may or may not be physically separate, and units shown as units may or may not be physical units, may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in the embodiments of the present application. The foregoing computer-readable storage media can be any available media that can be accessed by a computer. Taking this as an example but not limited to: the computer readable medium may include random access memory (random access memory, RAM), read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (electrically erasable programmable read only memory, EEPROM), compact disc read-only memory (compact disc read-only memory, CD-ROM), universal serial bus flash disk (universal serial bus flash disk), a removable hard disk, or other optical disk storage, magnetic disk storage media, or other magnetic storage device, 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. In addition, by way of example and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), or direct memory bus RAM (DR RAM).

The foregoing is merely specific embodiments of the present application, but the scope of the embodiments of the present application is not limited thereto, and any person skilled in the art may easily think about changes or substitutions within the technical scope of the embodiments of the present application, and the changes or substitutions are intended to be covered by the scope of the embodiments of the present application. Therefore, the protection scope of the embodiments of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of resource determination, the method comprising:

the method comprises the steps that a first terminal device determines a selection window resource set, wherein the selection window resource set is a set of all time-frequency resources in a resource selection window;

the first terminal device determines a first candidate side line resource set from the selection window resource set;

when the proportion of the resources after the first candidate side line resource set and the non-recommended resource set are excluded from the selection window resource set is smaller than X%, the first candidate side line resource set is the resources remained after the partial resources in the non-recommended resource set are excluded from the selection window resource set, or the first candidate side line resource set is the resources remained after the partial resources in the non-recommended resource set and the first resource set are excluded from the selection window resource set, and the proportion of the resources in the first candidate side line resource set is larger than or equal to X% in the selection window resource set, wherein the resources in the first candidate side line resource set comprise periodic reserved resources corresponding to the non-intercepted time slots in the interception window in the selection window resource set, the non-recommended resource set is the set of the resources used by the first terminal device and indicated by first indication information, and the first indication information is from the second terminal device or a third terminal device;

The first terminal device determines a first side line resource in the first candidate side line resource set;

the first terminal device transmits sidestream information to a second terminal device on the first sidestream resource.

2. The method of claim 1, wherein the step of determining the position of the substrate comprises,

the resources of the first resource set further comprise periodic reserved resources corresponding to first resources detected in the detection window in the selection window resource set, and the first resources are resources of at least one other terminal device.

3. The method of claim 2, wherein the step of determining the position of the substrate comprises,

excluding a portion of the resources in the set of non-recommended resources from the set of selection window resources includes:

and randomly excluding part of resources in the non-recommended resource set from the selection window resource set.

4. A method according to any one of claims 1-3, characterized in that the method further comprises:

the first terminal device sends cooperation request information to the second terminal device, wherein the cooperation request information comprises priority information of the side line information, a period of the side line information, a sub-channel occupied by the side line information and a resource selection window of the side line information;

The first terminal device receives the first instruction information from the second terminal device.

5. The method according to any one of claims 1 to 4, wherein,

the first candidate sidestream resource set comprises N candidate single-slot resources, the selection resource window resource set comprises M candidate single-slot resources,and the candidate single-time slot resource is the smallest time-frequency resource unit in the resource set of the selected resource window.

6. A method of resource determination, the method comprising:

when the proportion of the number of the residual resources after the non-recommended resource set is excluded from the selection window resource set to the number of the resources in the selection window resource set is less than X%, excluding part of the resources in the non-recommended resource set from the selection window resource set to obtain a first candidate side row resource set, wherein the proportion of the resources in the first candidate side row resource set to the selection resource window resource set is greater than or equal to X%, and the non-recommended resource set is a set of resources which are indicated by first indication information and are not recommended to be used by the first terminal device, and the first indication information is from the second terminal device or a third terminal device;

The first terminal device determines a first side-row resource in the first set of candidate side-row resources,

7. The method of claim 6, wherein the step of providing the first layer comprises,

the first candidate side row resource set comprises N candidate single-slot resources, and the selection resource window resource set comprises M candidate single-slot resourcesAnd the candidate single-time slot resource is the smallest time-frequency resource unit in the resource set of the selected resource window.

8. The method according to claim 6 or 7, wherein,

the step of obtaining a first candidate side row resource set by excluding part of the resources in the non-recommended resource set from the selection window resource set comprises the following steps:

and randomly excluding part of resources in the non-recommended resource set from the selection window resource set to obtain the first candidate side line resource set.

9. The method according to any one of claims 6-8, further comprising:

receiving the first instruction information from the second terminal device or the third terminal device;

and determining the non-recommended resource set according to the first indication information, wherein the non-recommended resource set comprises Q candidate single-slot resources, and Q is more than or equal to M (1-X%).

10. A first terminal device, comprising:

the processing unit is used for determining a selection window resource set, wherein the selection window resource set is a set of all time-frequency resources in a resource selection window;

the processing unit is further configured to determine a first candidate side row resource set from the selection window resource set;

The processing unit is further configured to determine a first side line resource in the first candidate side line resource set;

and the receiving and transmitting unit is used for transmitting the sidestream information to the second terminal device on the first sidestream resource.

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

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

13. The apparatus of claim 12, wherein the device comprises a plurality of sensors,

the receiving and transmitting unit is further configured to send collaboration request information to the second terminal device, where the collaboration request information includes priority information of the sidestream information, a period of the sidestream information, a subchannel occupied by the sidestream information, and a resource selection window of the sidestream information;

The transceiver unit is further configured to receive the first indication information from the second terminal device.

14. The apparatus according to any one of claims 11-13, wherein,

15. A second terminal apparatus, comprising:

The processing unit is further configured to determine a first side line resource from the first candidate side line resource set,

16. The apparatus of claim 15, wherein the device comprises a plurality of sensors,

17. The apparatus according to claim 15 or 16, wherein,

18. The apparatus according to any one of claims 15 to 17, wherein,

the transceiver unit is further configured to receive the first indication information from the second terminal device or the third terminal device;

the processing unit is further configured to determine the set of non-recommended resources according to the first indication information, where the set of non-recommended resources includes Q candidate single-slot resources, and Q is greater than or equal to M (1-X%).

19. A communication device comprising a processor and an interface for transmitting and/or receiving information, the processor being adapted to perform the method of any of claims 1-6 or to perform the method of any of claims 7-10.

20. A communication device comprising means for performing the method of any of claims 1-5 or comprising means for performing the method of any of claims 6-9.

21. A computer readable storage medium for storing a computer program which, when run on a computer, causes the computer to perform the method of any one of claims 1-5 or causes the computer to perform the method of any one of claims 6-9.

22. A computer program product comprising instructions which, when executed, cause the method of any one of claims 1-5 to be performed or cause the method of any one of claims 6-9 to be performed.

23. A chip comprising a processor and a communication interface, the processor being configured to read instructions or a computer program to perform the method of any of claims 1-5 or to cause the computer to perform the method of any of claims 6-9.