WO2021056560A1

WO2021056560A1 - Method and device for receiving and sending sidelink information

Info

Publication number: WO2021056560A1
Application number: PCT/CN2019/109177
Authority: WO
Inventors: 张健; 纪鹏宇; 李国荣; 张磊; 王昕�
Original assignee: 富士通株式会社; 张健; 纪鹏宇; 李国荣; 张磊; 王昕�
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2021-04-01

Abstract

The embodiments of the present application provide a method and device for receiving and sending sidelink information. The method comprises: a terminal device, in a time unit where it is unnecessary to send sidelink data, determining that at least one physical sidelink feedback channel (PSFCH) needs to be received; and receiving, in the time unit, one of at least one physical sidelink shared channel (PSSCH) and said at least one physical sidelink feedback channel, and/or receiving the at least one physical sidelink shared channel and the at least one physical sidelink feedback channel when a condition is satisfied.

Description

Method and device for receiving and sending side link information

Technical field

The embodiments of the present application relate to the field of communication technology.

Background technique

V2X (Vehicle to Everything) is a vehicle communication technology. The sending device of V2X communicates directly with the receiving device through a sidelink. New Radio (NR) V2X is an important project of 5G NR. Compared with Long Term Evolution (LTE) V2X, NR V2X needs to support many new scenarios and new services, such as remote driving, autonomous driving and fleet driving And so on, and need to meet higher technical indicators, such as high reliability, low latency, high data rate, etc.

At present, NR V2X defines several physical channels, including: Physical Sidelink Control Channel (PSCCH, Physical Sidelink Control Channel), Physical Sidelink Shared Channel (PSSCH, Physical Sidelink Shared Channel), and Physical Sidelink Feedback Channel ( PSFCH, Physical Sidelink Feedback Channel, is used to carry side link control information (SCI, sidelink control information), side link data information, and side link feedback information, etc., which can be collectively referred to as side link information.

On the other hand, similar to Mode 3 and Mode 4 defined by LTE V2X, NR V2X also defines two working modes. For NR V2X Mode 1 (Mode 1), the time-frequency resources (hereinafter referred to as resources) used by terminal equipment for V2X communication are scheduled by network equipment (such as base stations); for NR V2X Mode 2 (Mode 2), the terminal equipment can Based on the sensing result, the resources used for V2X communication are selected autonomously, so that collision and interference can be avoided. Among them, sensing may include monitoring the SCI carried by the PSCCH (may be referred to as monitoring the PSCCH or SCI decoding for short), side link signal measurement, and the like.

It should be noted that the above introduction to the technical background is only for the convenience of a clear and complete description of the technical solutions of the present application, and to facilitate the understanding of those skilled in the art. It should not be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background art part of this application.

Summary of the invention

However, the inventor found that if a terminal device needs to receive both PSSCH and PSFCH in a certain time unit (for example, a time slot), the hardware complexity of the device will be greatly increased, and the hardware cost and power consumption of the device will follow. increase.

In response to at least one of the foregoing problems, embodiments of the present application provide a method and device for receiving and sending side link information.

According to an aspect of the embodiments of the present application, a method for receiving side link information is provided, including:

The second terminal device determines that it needs to receive at least one physical side link feedback channel for a time unit when the side link data does not need to be sent; and

Receive one of at least one physical side link shared channel and the at least one physical side link feedback channel within the time unit, and/or receive the at least one physical side link if a condition is met A shared channel and the at least one physical side link feedback channel.

According to another aspect of the embodiments of the present application, there is provided an apparatus for receiving side link information, including:

A processing unit, which determines that at least one physical side link feedback channel needs to be received for a time unit when side link data is not required to be sent; and

The receiving unit receives one of at least one physical side link shared channel and the at least one physical side link feedback channel within the time unit, and/or, receives the at least one physical side link feedback channel when a condition is met The physical side link shared channel and the at least one physical side link feedback channel.

According to another aspect of the embodiments of the present application, a method for sending side link information is provided, including:

The first terminal device determines that the second terminal needs to receive at least one physical side link feedback channel in a time unit; and

Exclude the resource within the time unit from the candidate resource set for sending the at least one physical side link shared channel to the second terminal device.

According to another aspect of the embodiments of the present application, a device for sending side link information is provided, including:

A determining part, which determines that the second terminal needs to receive at least one physical side link feedback channel in a time unit; and

A sending unit that excludes the resource in the time unit from the candidate resource set for sending the at least one physical side link shared channel to the second terminal device.

The first terminal device determines that it needs to receive the first physical side link shared channel in a time unit; and

The resource used for transmitting the second physical side link shared channel and that needs to receive the physical side link feedback channel associated with the second physical side link shared channel within the time unit is excluded from the candidate resource set.

A determining part, which determines that the first physical side link shared channel needs to be received in a time unit; and

The sending unit, which excludes the physical side link feedback channel associated with the second physical side link shared channel that is used to send the second physical side link shared channel and needs to receive the second physical side link shared channel within the time unit from the candidate resource set H.

One of the beneficial effects of the embodiments of the present application is that the terminal device receives one of at least one PSSCH and at least one PSFCH within a time unit, and/or receives at least one PSSCH and at least one PSFCH when conditions are met. Therefore, the hardware complexity of the terminal device can be reduced, so that the hardware cost and the power consumption of the device are reduced accordingly.

With reference to the following description and drawings, specific implementations of the present application are disclosed in detail, and the ways in which the principles of the present application can be adopted are indicated. It should be understood that the scope of the implementation of the present application is not limited thereby. Within the spirit and scope of the terms of the appended claims, the implementation of the present application includes many changes, modifications and equivalents.

Features described and/or shown for one embodiment can be used in one or more other embodiments in the same or similar manner, combined with features in other embodiments, or substituted for features in other embodiments .

It should be emphasized that the term "comprising/comprising" when used herein refers to the existence of a feature, a whole, a step or a component, but does not exclude the existence or addition of one or more other features, a whole, a step or a component.

Description of the drawings

The elements and features described in one drawing or one implementation of the embodiment of the application may be combined with the elements and features shown in one or more other drawings or implementations. In addition, in the drawings, similar reference numerals indicate corresponding parts in several drawings, and may be used to indicate corresponding parts used in more than one embodiment.

Fig. 1 is a schematic diagram of a communication system according to an embodiment of the present application;

Figure 2 is a diagram showing an example of the structure in which PSCCH, PSSCH and PSFCH are multiplexed in one time slot;

FIG. 3 is a schematic diagram of a method for receiving side link information according to an embodiment of the present application;

FIG. 4 is an example diagram of a channel structure in a time slot according to an embodiment of the present application;

FIG. 5 is another example diagram of a channel structure in a time slot according to an embodiment of the present application;

FIG. 6 is another example diagram of a channel structure in a time slot according to an embodiment of the present application;

FIG. 7 is another example diagram of a channel structure in a time slot according to an embodiment of the present application;

FIG. 8 is another example diagram of a channel structure in a time slot according to an embodiment of the present application;

FIG. 9 is another example diagram of a channel structure in a time slot according to an embodiment of the present application;

FIG. 10 is another example diagram of a channel structure in a time slot according to an embodiment of the present application;

FIG. 11 is a schematic diagram of a method for sending side link information according to an embodiment of the present application;

FIG. 12 is another schematic diagram of a method for sending side link information according to an embodiment of the present application;

FIG. 13 is a schematic diagram of an apparatus for receiving side link information according to an embodiment of the present application;

FIG. 14 is a schematic diagram of a device for sending side link information according to an embodiment of the present application;

FIG. 15 is a schematic diagram of a network device according to an embodiment of the present application;

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

detailed description

With reference to the drawings, the foregoing and other features of this application will become apparent through the following description. In the specification and drawings, specific implementations of the application are specifically disclosed, which indicate some implementations in which the principles of the application can be adopted. It should be understood that the application is not limited to the described implementations. On the contrary, the present application is not limited to the described implementations. The application includes all modifications, variations and equivalents falling within the scope of the appended claims.

In the embodiments of the present application, the terms "first", "second", etc. are used to distinguish different elements from the terms, but they do not indicate the spatial arrangement or chronological order of these elements. These elements should not be used by these terms. Limited. The term "and/or" includes any and all combinations of one or more of the associated listed terms. The terms "comprising", "including", "having" and the like refer to the existence of the stated features, elements, elements or components, but do not exclude the presence or addition of one or more other features, elements, elements or components.

In the embodiments of this application, the singular forms "a", "the", etc. include plural forms, which should be broadly understood as "a" or "a type" rather than being limited to the meaning of "a"; in addition, the term "so" "Said" should be understood to include both singular and plural forms, unless the context clearly indicates otherwise. In addition, the term "based on" should be understood as "based at least in part on...", and the term "based on" should be understood as "based at least in part on...", unless the context clearly dictates otherwise.

In the embodiments of this application, the term "communication network" or "wireless communication network" can refer to a network that meets any of the following communication standards, such as Long Term Evolution (LTE), and Enhanced Long Term Evolution (LTE-A, LTE-A). Advanced), Wideband Code Division Multiple Access (WCDMA, Wideband Code Division Multiple Access), High-Speed Packet Access (HSPA, High-Speed Packet Access), etc.

In addition, the communication between devices in the communication system can be carried out according to any stage of communication protocol, for example, it can include but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and 5G , New Radio (NR, New Radio), etc., and/or other currently known or future communication protocols.

In the embodiments of the present application, the term “network device” refers to, for example, a device in a communication system that connects a terminal device to a communication network and provides services for the terminal device. Network equipment may include but not limited to the following equipment: base station (BS, Base Station), access point (AP, Access Point), transmission and reception point (TRP, Transmission Reception Point), broadcast transmitter, mobile management entity (MME, Mobile Management Entity), gateway, server, radio network controller (RNC, Radio Network Controller), base station controller (BSC, Base Station Controller), etc.

Among them, the base station may include but is not limited to: Node B (NodeB or NB), evolved Node B (eNodeB or eNB), 5G base station (gNB), etc., and may also include remote radio head (RRH, Remote Radio Head) , Remote Radio Unit (RRU, Remote Radio Unit), relay (relay), or low-power node (such as femeto, pico, etc.). And the term "base station" can include some or all of their functions, and each base station can provide communication coverage for a specific geographic area. The term "cell" may refer to a base station and/or its coverage area, depending on the context in which the term is used.

In the embodiments of the present application, the term "User Equipment" (UE, User Equipment) or "Terminal Equipment" (TE, Terminal Equipment or Terminal Device), for example, refers to a device that accesses a communication network through a network device and receives network services. The terminal device may be fixed or mobile, and may also be called a mobile station (MS, Mobile Station), terminal, subscriber station (SS, Subscriber Station), access terminal (AT, Access Terminal), station, etc.

Among them, terminal devices may include but are not limited to the following devices: cellular phones (Cellular Phone), personal digital assistants (PDAs, Personal Digital Assistant), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, Cordless phones, smart phones, smart watches, digital cameras, etc.

For another example, in scenarios such as the Internet of Things (IoT), a terminal device may also be a machine or device that performs monitoring or measurement. For example, it may include, but is not limited to: Machine Type Communication (MTC) terminals, In-vehicle communication terminals, device to device (D2D, Device to Device) terminals, machine to machine (M2M, Machine to Machine) terminals, etc.

In addition, the term "network side" or "network device side" refers to a side of the network, which may be a certain base station, or may include one or more network devices as described above. The term "user side" or "terminal side" or "terminal device side" refers to a side of a user or terminal, which may be a certain UE, or may include one or more terminal devices as described above. Unless otherwise specified in this article, "equipment" can refer to network equipment or terminal equipment.

The following uses examples to illustrate the scenarios of the embodiments of the present application, but the present application is not limited to this.

FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a case where a terminal device and a network device are taken as an example. As shown in FIG. 1, the communication system 100 may include a network device 101 and

terminal devices

102 and 103. For simplicity, FIG. 1 only uses two terminal devices and one network device as an example for description, but the embodiment of the present application is not limited to this.

In the embodiment of the present application, the network device 101 and the

terminal devices

102 and 103 may perform existing service or service transmission that can be implemented in the future. For example, these services may include, but are not limited to: enhanced Mobile Broadband (eMBB), large-scale machine type communication (mMTC, massive Machine Type Communication), and high-reliability and low-latency communication (URLLC, Ultra-Reliable and Low). -Latency Communication), etc.

It is worth noting that FIG. 1 shows that two

terminal devices

102 and 103 are both within the coverage of the network device 101, but the application is not limited to this. The two

terminal devices

102 and 103 may not be within the coverage area of the network device 101, or one terminal device 102 is within the coverage area of the network device 101 and the other terminal device 103 is outside the coverage area of the network device 101.

In the embodiment of the present application, side link transmission may be performed between the two

terminal devices

102 and 103. For example, the two

terminal devices

102 and 103 may both perform side link transmission within the coverage area of the network device 101 to implement V2X communication, or both may perform side link transmission outside the coverage area of the network device 101 to implement V2X communication. For communication, it is also possible that one terminal device 102 is within the coverage area of the network device 101 and the other terminal device 103 is outside the coverage area of the network device 101 to perform side link transmission to implement V2X communication.

In the embodiment of this application, the terminal device 102 and/or 103 can independently select the side link resource (ie Mode 2). In this case, the side link transmission can be independent of the network device 101, that is, the network device 101 is optional. of. In addition, it is also possible to combine the terminal device's independent selection of side link resources (that is, Mode 2) and the allocation of side link resources by the network device (that is, Mode 1); this embodiment of the application does not limit this.

In the embodiment of the present application, the SCI is used to schedule the PSSCH, and the SCI may indicate the priority of the PSSCH. There is a predetermined mapping relationship between PSCCH/PSSCH time-frequency resources and their associated PSFCH time-frequency resources. After transmitting the PSCCH/PSSCH, the terminal equipment can know which time slot to receive the PSFCH associated with the PSSCH, that is The terminal device can determine the time slot for receiving the PSFCH.

In order to avoid resource collisions, NR V2X supports the reservation of resources. For example, resources for retransmission can be reserved for the previous transmission, and resources for transmission of the next cycle can be reserved for a certain transmission of periodic services, and so on. The above-mentioned reserved resource information can be indicated by the SCI, so the reserved resource information can be obtained through perception. This text refers to the SCI indicating the reserved information as reservation signaling.

In the embodiments of the present application, V2X is taken as an example to describe PSSCH, PSFCH, etc., but the present application is not limited to this, and can also be applied to side link transmission scenarios other than V2X. In the following description, without causing confusion, the terms "side link" and "V2X" can be interchanged, and the terms "PSFCH" and "physical side link feedback channel" or "side link feedback channel" can be Interchangeably, the terms "PSSCH" and "physical side link shared channel" or "side link data" or "side link data channel" can also be interchanged.

In the embodiment of the present application, the side link control information is carried by the PSCCH, the side link data information is carried by the PSSCH, and the side link feedback information (for example, HARQ-ACK) is carried by the PSFCH. In addition, sending or receiving PSSCH can be understood as sending or receiving side link data carried by PSSCH; sending or receiving PSFCH can be understood as sending or receiving side link feedback information carried by PSFCH.

In this context, "receiving" refers to, for example, all necessary signal processing for restoring and extracting information, including channel estimation, demodulation, decoding, sequence detection, and so on. "Resources" include resources in the time domain, frequency domain, and code domain. Since the PSCCH always needs to be sent along with its scheduled PSSCH, receiving PSSCH generally means receiving PSCCH and PSSCH; similarly, sending PSSCH generally means sending PSCCH and PSSCH. The priority of the PSFCH refers to, for example, the priority of the PSSCH associated with the PSFCH. Monitoring the PSCCH, for example, also includes monitoring the PSCCH sent to other terminal devices, so that the terminal device can avoid collision and interference when selecting autonomous resources. In addition, reservation signaling can indicate and reserve resources for periodic transmission or retransmission or initial transmission.

Figure 2 is a diagram showing an example of the structure in which PSCCH, PSSCH, and PSFCH are multiplexed in one slot, in which the symbols used for the guard interval are omitted. Figure 2 illustrates the areas of PSCCH, PSSCH and PSFCH from the perspective of the system, that is, these areas can be occupied by different terminal devices or by the same terminal device. In these areas, the physical resources actually occupied by each physical channel are a further division of the area.

For NR V2X, in a time slot, if a terminal device needs to receive both PSSCH and PSFCH, the terminal device needs to perform automatic gain control (AGC, automatic gain control) estimation twice. For LTE V2X, the terminal device only needs to perform AGC estimation once in a subframe and receive the PSSCH. Compared with LTE V2X, NR V2X's two AGC estimations in one time slot and the reception of all physical channels will greatly increase the hardware implementation complexity of the device, thereby increasing the hardware cost and device power consumption.

In view of at least one of the above problems, in the embodiment of the present application, the terminal device may not receive the PSSCH in the time slot when the PSFCH is received, or may decide whether to receive the PSSCH and PSFCH according to the priority, thereby reducing hardware implementation complexity and saving power. In addition, when the transmitting terminal device finds that the receiving terminal device will not receive the PSSCH in a certain time slot based on the sensing result, the transmitting terminal device can avoid sending PSSCH to the receiving terminal device in this time slot, thereby reducing interference to other surrounding devices, and Avoid system congestion. The following further describes the embodiments of the present application.

Embodiments of the first aspect

The embodiment of the present application provides a method for receiving side link information, which is described from the side of the second terminal device. The first terminal device serves as the sender and sends the PSSCH to the second terminal device. In addition, the second terminal device serves as the sender and sends the PSSCH to the third terminal device; and the second terminal device serves as the receiver and receives the PSFCH sent by the third terminal device. Wherein, the first terminal device and the third terminal device may be the same terminal device or different terminal devices.

FIG. 3 is a schematic diagram of a method for receiving side link information according to an embodiment of the present application. As shown in FIG. 3, the method includes:

301. The second terminal device determines that it needs to receive at least one physical side link feedback channel in a time unit (for example, a time slot or a non-slot) where side link data is not required to be sent; and

302. The second terminal device receives one of the at least one physical side link shared channel and the at least one physical side link feedback channel within the time unit, and/or, when a condition is met The at least one physical side link shared channel and the at least one physical side link feedback channel.

In the embodiment of the present application, the time unit may be, for example, a time slot (slot), or may also be a non-slot (such as a mini-slot). The present application is not limited to this. The following uses a slot as an example for description.

It is worth noting that Figure 3 above only schematically illustrates the embodiments of the present application, but the present application is not limited thereto. For example, the order of execution between operations can be appropriately adjusted, and some other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of FIG. 3 above.

In some embodiments, the second terminal device does not monitor the physical side link control channel within the time unit; and the second terminal device receives the at least one physical side link feedback channel but does not receive the at least one physical side link Link shared channel.

FIG. 4 is an example diagram of a channel structure in a time slot according to an embodiment of the present application. As shown in FIG. 4, for example, the second terminal device does not need to send the PSSCH in the time slot for receiving the PSFCH. In addition, the second terminal device does not monitor the PSCCH and receives the PSFCH in this time slot; in addition, the second terminal device may not receive the PSSCH in this time slot.

Since the second terminal device also needs to perform AGC estimation when monitoring the PSCCH, when the second terminal device does not monitor the PSCCH, it only needs to perform AGC estimation once for PSFCH reception in one time slot. In the time slot for receiving the PSFCH, the second terminal device performs an AGC estimation and receives the PSFCH; the second terminal device does not need to monitor the PSCCH, and therefore does not need to receive the PSSCH scheduled by the PSCCH. Even if the second terminal device knows through perception that the PSSCH resource to be sent to itself is reserved in the time slot, the second terminal device does not receive the PSSCH and does not blindly detect the PSCCH. In this way, complexity can be reduced, and power consumption can be reduced.

In some embodiments, the second terminal device excludes resources reserved by the time unit that does not monitor the physical side link control channel when selecting side link resources.

Since the second terminal device does not monitor the PSCCH in the time slot for receiving the PSFCH, the second terminal device needs to exclude resources that may be reserved by the time slot for receiving the PSFCH. The specific method can refer to the processing of the PSSCH time slot when the terminal device selects the autonomous resource. For example, the method in section 14.1.1.6 of TS 36.213 can be used, which includes the processing of the subframes for transmitting the PSSCH.

In the time slot for transmitting the PSSCH, the terminal equipment will not monitor the PSCCH due to the half-duplex restriction. For NR V2X, the time slots where the PSCCH is not monitored include not only the time slots for transmitting the PSSCH, but also the time slots for receiving the PSFCH.

In some embodiments, the second terminal device monitors the physical side link control channel within the time unit; and the second terminal device receives the at least one physical side link feedback channel but does not receive the at least one physical side link feedback channel; The side link shares the channel.

FIG. 5 is another example diagram of the channel structure in a time slot according to an embodiment of the present application. As shown in FIG. 5, for example, the second terminal device does not need to send the PSSCH in the time slot in which the PSFCH is received, and the second terminal device monitors the PSCCH and PSFCH is received; in addition, the second terminal device does not receive PSSCH.

As shown in Figure 5, in this time slot, for example, even if the second terminal device monitors that the PSCCH schedules the PSSCH in the same time slot, the second terminal device will not receive the PSSCH; in addition, the second terminal device will receive the PSSCH as usual. PSFCH.

The second terminal device needs to perform AGC estimation when monitoring the PSCCH, and receiving PSFCH also needs to perform AGC estimation, so the second terminal device needs to perform AGC estimation twice in one time slot. However, since the second terminal device does not need to receive the PSSCH, the complexity can also be reduced, and the power consumption can be reduced.

Here, the terminal device monitoring the PSCCH is not to receive the PSSCH scheduled by the PSCCH and located in the same time slot, but to enable the terminal device to perceive which resources are reserved by other terminal devices, thereby helping to avoid collision and interference during autonomous resource selection.

In some embodiments, when the second terminal device needs to receive at least one physical side link feedback channel and at least one physical side link shared channel within the time unit, compare at least one physical side link shared channel And the priority of the at least one physical side link feedback channel; and determining whether to receive at least one physical side link shared channel or at least one physical side link feedback channel according to the priority.

In some embodiments, when the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, the second terminal device receives the At least one physical side link feedback channel does not monitor the physical side link control channel and does not receive the at least one physical side link shared channel;

In the case that the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, monitor the physical side link control channel and receive the at least one physical side link The link shares the channel without receiving the at least one physical side link feedback channel.

In some embodiments, when the second terminal device needs to receive at least one physical side link feedback channel within the time unit and does not need to receive at least one physical side link shared channel, it receives at least one physical side link feedback channel It does not monitor the physical side link control channel.

For example, the second terminal device does not need to send the PSSCH in the time slot for receiving the PSFCH. When the second terminal device learns that it needs to receive the PSSCH in the time slot according to the reserved signaling, if the highest priority of the PSSCH is higher than the highest priority of the PSFCH At level, the second terminal device monitors the PSCCH, receives the PSSCH, and does not receive the PSFCH; otherwise, the second terminal device receives the PSFCH, does not monitor the PSCCH, and does not receive the PSSCH.

FIG. 6 is another example diagram of a channel structure in a time slot according to an embodiment of the present application. As shown in FIG. 6, the time slot in which the second terminal device receives the PSFCH is recorded as time slot n. The reservation signaling of the time slot n-k (k>0) indicates that the second terminal device needs to receive the PSSCH in the time slot n, and indicates the priority information of the PSSCH.

For example, the reserved signaling is carried by the PSCCH, indicating that resources for PSSCH periodic transmission or retransmission or initial transmission are reserved in time slot n, and the priority indicated by the PSCCH carrying the reserved signaling is the time slot. The priority of the PSSCH of n.

Therefore, the second terminal device can learn that it needs to receive the PSSCH in time slot n through reservation signaling, and know the priority of the PSSCH.

FIG. 7 is another example diagram of a channel structure in a time slot according to an embodiment of the present application, showing a situation where the priority of the PSSCH is higher than the priority of the PSFCH. FIG. 8 is another example diagram of a channel structure in a time slot according to an embodiment of the present application, showing a situation where the priority of the PSSCH is not higher than the priority of the PSFCH or the PSSCH does not need to be received in the time slot.

For example, the second terminal device needs to receive N1 (N1≥1) PSFCHs and needs to receive N2 (N2≥1) PSSCHs in this time slot, where the PSSCH is indicated by the reservation signaling. Here, the PSFCH priority refers to the priority of the PSSCH associated with the PSFCH. The highest priority among the N1 PSFCH priorities is denoted as P1, and the highest priority among the N2 PSSCH priorities is denoted as P2.

As shown in Figure 7, when the priority P2 is higher than the priority P1, the second terminal device receives PSSCH but not PSFCH. In addition, the second terminal device can monitor the PSCCH, which can avoid collision and interference, and no additional AGC estimates. As shown in FIG. 8, when the priority P2 is not higher than the priority P1 or the PSSCH does not need to be received in the time slot, the second terminal device receives the PSFCH, does not receive the PSSCH, and does not monitor the PSCCH. Between the PSSCH and the PSFCH, the second terminal device only selects the physical channel with a higher priority to receive, so that the complexity is reduced and the power consumption can be reduced.

In some embodiments, the second terminal device monitors the physical side link control channel in the time unit, and needs to receive both the at least one physical side link feedback channel and the at least one physical side link. In the case of a shared channel, compare the priorities of the at least one physical side link shared channel and the at least one physical side link feedback channel; and determine to receive the at least one physical side link shared channel according to the priority It is also the at least one physical side link feedback channel.

In some embodiments, when the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, the second terminal device receives the At least one physical side link feedback channel does not receive the at least one physical side link shared channel; the highest priority of the at least one physical side link feedback channel is lower than that of the at least one physical side link shared channel In the case of the highest priority, the at least one physical side link shared channel is received but the at least one physical side link feedback channel is not received.

In some embodiments, the second terminal device monitors the physical side link control channel within the time unit; and the second terminal device does not need to receive the at least one physical side link feedback channel when it needs to receive the at least one physical side link feedback channel. In the case of a physical side link sharing channel, receiving the at least one physical side link feedback channel.

For example, the second terminal device does not need to send the PSSCH in the time slot for receiving the PSFCH, and the second terminal device monitors the PSCCH. When the second terminal device needs to receive the PSSCH in this time slot, if the highest priority of the PSSCH is higher than the highest priority of the PSFCH, the second terminal device receives the PSSCH and does not receive the PSFCH; otherwise, the second terminal device does not receive the PSFCH. Receive PSSCH.

FIG. 9 is another example diagram of a channel structure in a time slot according to an embodiment of the present application, showing a situation where the priority of the PSSCH is higher than the priority of the PSFCH. FIG. 10 is another example diagram of a channel structure in a time slot according to an embodiment of the present application, showing a situation where the PSSCH priority is not higher than the PSFCH priority or the PSSCH does not need to be received in the time slot.

For example, the second terminal device needs to receive N1 (N1≥1) PSFCHs and N2 (N2≥1) PSSCHs in this time slot. Therefore, there are N1 PSFCH priorities and N2 PSSCH priorities. Here, the PSFCH priority refers to the priority of the PSSCH associated with the PSFCH. The highest priority among the N1 PSFCH priorities is denoted as P1, and the highest priority among the N2 PSSCH priorities is denoted as P2.

As shown in FIG. 9, when the priority P2 is higher than the priority P1, the second terminal device receives the PSSCH and does not receive the PSFCH; otherwise, as shown in FIG. 10, the second terminal device receives the PSFCH and does not receive the PSSCH. Between the PSSCH and the PSFCH, the second terminal device only selects the physical channel with a higher priority to receive, so that the complexity is reduced and the power consumption can be reduced.

In these embodiments, the second terminal device monitors the PSCCH, on the one hand, it can maintain the sensing function; on the other hand, it can judge whether it has scheduled the PSSCH for sending to itself in the same time slot according to the PSCCH.

In some embodiments, the second terminal device determines the priority of the at least one physical side link shared channel and/or the priority of the at least one physical side link feedback channel; and determines to receive the at least one physical side link according to the priority. One physical side link shared channel and/or the at least one physical side link feedback channel.

For example, the SCI carried by the PSCCH contains a priority field, which indicates the priority of the scheduled PSSCH. Therefore, by receiving the PSCCH, the second terminal device can obtain the priority of the PSSCH scheduled by the PSCCH. The PSSCH associated with the PSFCH is also scheduled by the PSCCH, so the second terminal device already knows the priority of the PSSCH associated with the PSFCH in the time slot when the PSFCH is received.

The second terminal device can learn in different ways that it needs to receive the PSSCH in the time slot n where the PSFCH is received, and obtain the priority of the PSSCH. For example, the PSCCH of time slot n indicates that the second terminal device needs to receive the PSSCH in time slot n, and indicates priority information of the PSSCH. For another example, the reservation signaling of time slot n-k (k>0) indicates that the second terminal device needs to receive the PSSCH in time slot n, and indicates priority information of the PSSCH.

For example, the reserved signaling is carried by PSCCH, indicating that resources for PSSCH periodic transmission or retransmission are reserved in time slot n, and the priority indicated by the PSCCH carrying the reserved signaling is the PSSCH in time slot n Priority.

In some embodiments, when the first condition is met, the second terminal device monitors the physical side link control channel and receives at least one physical side link shared channel, and receives at least one physical side link feedback channel.

In some embodiments, the second terminal device does not monitor the physical side link control channel and does not receive at least one physical side link when the first condition is not met or does not need to receive at least one physical side link shared channel. Shared channel, receiving at least one physical side link feedback channel.

For example, the second terminal device does not need to send the PSSCH in the time slot for receiving the PSFCH. When the second terminal device learns that it needs to receive PSSCH in this time slot according to the reserved signaling, if the first condition is met, the second terminal device receives PSSCH, receives PSFCH, and monitors PSCCH; otherwise, the second terminal device receives PSFCH, but does not receive PSSCH, do not monitor PSCCH.

Among them, the first condition includes at least one of the following:

-The highest priority of PSSCH is higher than the first threshold;

-The highest priority of PSSCH is higher than the first threshold, and the highest priority of PSFCH is higher than the second threshold.

Through this operation, although the second terminal device needs to receive both PSSCH and PSFCH when the first condition is met, by setting the first condition, the probability of the terminal device performing two receiving operations can be greatly reduced, thereby reducing Increased complexity and power consumption.

In some embodiments, the second terminal device monitors the physical side link control channel within the time unit; and in the case that the first condition is met, receives the at least one physical side link shared channel, and receives all Said at least one physical side link feedback channel.

In some embodiments, the second terminal device monitors the physical side link control channel in the time unit; and when the first condition is not met or does not need to receive the at least one physical side link shared channel , Not receiving the at least one physical side link shared channel, and receiving the at least one physical side link feedback channel.

For example, the second terminal device does not need to send the PSSCH in the time slot for receiving the PSFCH, and the second terminal device monitors the PSCCH. When the second terminal device needs to receive the PSSCH in this time slot, if the first condition is met, the second terminal device receives the PSSCH and receives the PSFCH; otherwise, the second terminal device receives the PSFCH and does not receive the PSSCH.

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

-The highest priority of PSSCH is higher than the first threshold;

In some embodiments, when the second terminal device does not meet the first condition,

If the highest priority of at least one physical side link feedback channel is higher than or equal to the highest priority of at least one physical side link shared channel, or it is not necessary to receive at least one physical side link shared channel, then at least one physical side link is received Channel feedback channel without monitoring the physical side link control channel and receiving at least one physical side link shared channel;

If the highest priority of at least one physical side link feedback channel is lower than the highest priority of at least one physical side link shared channel, then monitor the physical side link control channel and receive at least one physical side link shared channel without receiving at least A physical side link feedback channel.

For example, the second terminal device does not need to send the PSSCH in the time slot for receiving the PSFCH. When the second terminal device learns that it needs to receive the PSSCH in this time slot according to the reserved signaling, if the above-mentioned first condition is met, the second terminal device receives the PSSCH, receives the PSFCH, and monitors the PSCCH; otherwise, the following operations are performed: The highest priority is higher than the highest priority of the PSFCH, and the second terminal device monitors the PSCCH, receives the PSSCH, and does not receive the PSFCH; otherwise, the second terminal device receives the PSFCH, does not monitor the PSCCH, and does not receive the PSSCH.

Through this operation, although the second terminal device needs to receive both PSSCH and PSFCH when the first condition is met, by setting the first condition, the probability of the terminal device performing two receiving operations can be greatly reduced, thereby reducing Increased complexity and power consumption. When the first condition is not met, one of the PSSCH and PSFCH can be selected for reception according to the priority, which can still reduce the complexity and power consumption.

In some embodiments, the second terminal device monitors the physical side link control channel within the time unit when the first condition is not met,

If the highest priority of at least one physical side link feedback channel is higher than or equal to the highest priority of at least one physical side link shared channel, or it is not necessary to receive at least one physical side link shared channel, then at least one physical side link is received Channel feedback channel without receiving at least one physical side link shared channel;

If the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the at least one physical side link shared channel is received and the at least one physical side link feedback channel is not received.

For example, the second terminal device does not need to send the PSSCH in the time slot for receiving the PSFCH, and the second terminal device monitors the PSCCH. When the second terminal device needs to receive the PSSCH in this time slot, if the first condition is met, the second terminal device receives the PSSCH and receives the PSFCH; otherwise, the following operations are performed: if the highest priority of the PSSCH is higher than the highest priority of the PSFCH, Then the second terminal device receives the PSSCH and does not receive the PSFCH; otherwise, the second terminal device receives the PSFCH and does not receive the PSSCH.

The above embodiments only exemplify the embodiments of the present application, but the present application is not limited thereto, and appropriate modifications may also be made on the basis of the above various embodiments. For example, each of the above embodiments may be used alone, or one or more of the above embodiments may be combined.

It can be seen from the foregoing embodiment that the terminal device receives one of at least one PSSCH and at least one PSFCH within a time unit, and/or receives at least one PSSCH and at least one PSFCH when conditions are met. Therefore, the hardware complexity of the terminal device can be reduced, so that the hardware cost and the power consumption of the device are reduced accordingly.

Embodiments of the second aspect

The embodiment of the present application provides a method for sending side link information, which is described from the side of the first terminal device, and the same content as the embodiment of the first aspect will not be repeated. The first terminal device serves as the sender and sends the PSSCH to the second terminal device. In addition, the second terminal device serves as the sender and sends the PSSCH to the third terminal device; and the second terminal device serves as the receiver and receives the PSFCH sent by the third terminal device. Wherein, the first terminal device and the third terminal device may be the same terminal device or different terminal devices.

FIG. 11 is a schematic diagram of a method for sending side link information according to an embodiment of the present application. As shown in FIG. 11, the method includes:

1101. The first terminal device determines that the second terminal needs to receive at least one physical side link feedback channel in a time unit (for example, a time slot or a non-time slot); and

1102. The first terminal device excludes the resource within the time unit from the candidate resource set for sending at least one physical side link shared channel to the second terminal device.

It is worth noting that the above Figure 11 only schematically illustrates the embodiments of the present application, but the present application is not limited thereto. For example, the order of execution between operations can be appropriately adjusted, and some other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the above content, and are not limited to the description of FIG. 11 above.

In some embodiments, the first terminal device does not send at least one physical side link shared channel to the second terminal device within the time unit.

For example, because the second terminal device will not receive the PSSCH in the first time slot when the PSFCH is received, it is not necessary to send the PSSCH to the second terminal device in the first time slot. Therefore, the first terminal device can transfer the PSSCH in the first time slot. Resources are excluded from the PSSCH candidate resource set.

In other words, the first terminal device does not send the PSSCH to the second terminal device in the first time slot, which includes not using the PSCCH to schedule the PSSCH in the first time slot, and also includes not reserving the PSSCH in the first time slot for sending to the second terminal device. The terminal equipment sends the resources of the PSSCH.

For example, the first terminal device needs to perform autonomous resource selection through perception, and the first terminal device has a PSSCH to be sent to the second terminal device. The SCI can indicate the source ID (Source ID), and the SCI indicates whether the scheduled PSSCH needs to feed back the PSFCH. When the second terminal device sends the PSSCH, the source identifier in the SCI identifies the second terminal device. It is assumed that the SCI also indicates that the PSFCH needs to be fed back.

When the first terminal device detects the SCI sent by the second terminal device during the sensing process of monitoring the SCI, it can know through the source identifier that the second terminal device sent the PSSCH, and can know the second terminal through the mapping relationship between PSSCH and PSFCH The device needs to receive the PSFCH in the first time slot.

Since the second terminal device will not receive the PSSCH in the first time slot, the first terminal device will exclude the resources in the first time slot from the PSSCH candidate resources sent to the second terminal device, that is, avoid sending the PSSCH in the first time slot. The second terminal device sends the PSSCH. In the above manner, the first terminal device will not send unnecessary PSSCH, thereby reducing interference to other terminal devices and reducing system congestion.

In some embodiments, the first terminal device compares the priorities of the at least one physical side link shared channel and the at least one physical side link feedback channel; and determines whether to send the at least one physical side link shared channel according to the priority.

In some embodiments, when the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, the first terminal device does not send the Said at least one physical side link shared channel;

If the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the at least one physical side link shared channel is sent.

For example, when the first terminal device perceives that the second terminal device needs to receive the PSFCH in the first time slot, if the first terminal device intends to send the PSSCH to the second terminal device by way of reserved signaling, the priority of the PSSCH is high When the first terminal device perceives the priority of all PSFCHs that the second terminal device needs to receive in the first time slot, the first terminal device sends reservation signaling in the second time slot (before the first time slot) , And send the PSSCH to the second terminal device in the first time slot.

For example, the SCI indicates the priority in addition to the source identification and whether the PSFCH needs to be fed back. The first terminal device detects the SCI sent by the second terminal device, knows that the second terminal device needs to receive the PSFCH in the first time slot, and the first terminal device can know the priority of the PSFCH through the priority field of the SCI.

When the priority of the PSSCH that the first terminal device intends to send to the second terminal device by way of reserved signaling is higher than the priority of the PSFCH that the second terminal device needs to receive, the The second time slot sends reservation signaling to reserve PSSCH resources in the first time slot, and sends the PSSCH to the second terminal device in the first time slot.

Since the second terminal device will decide whether to receive the PSSCH according to the priority, only when the priority of the PSSCH is higher than the priority of the PSFCH, the PSSCH sent to the second terminal device may be received by the second terminal device, otherwise, even If the PSSCH is sent to the second terminal device, the PSSCH will also be discarded by the second terminal device, and the PSSCH transmission is unnecessary. In the above manner, the first terminal device will not send unnecessary PSSCH, thereby reducing interference to other terminal devices and reducing system congestion.

In some embodiments, the first terminal device determines the priority of the at least one physical side link shared channel and/or the priority of the at least one physical side link feedback channel; and determines whether to transmit according to the priority The at least one physical side link shares a channel.

In some embodiments, the first terminal device transmits the at least one physical side link shared channel when the first condition is met.

In some embodiments, the first terminal device does not transmit the at least one physical side link shared channel when the first condition is not met.

In some embodiments, when the first terminal device does not meet the first condition,

If the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, the at least one physical side link shared channel is not sent;

For example, when the first terminal device perceives that the second terminal device needs to receive the PSFCH in the first time slot, if the first terminal device intends to send the PSSCH to the second terminal device by way of reserved signaling, the priority of the PSSCH is high When the first terminal device perceives the priority of all PSFCHs that the second terminal device needs to receive in the first time slot, or meets the following first condition, the first terminal device is in the second time slot (in the first time slot). Before) Send reservation signaling, and send PSSCH to the second terminal device in the first time slot.

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

-The highest priority of PSSCH is higher than the first threshold;

When the priority of the PSSCH that the first terminal device intends to send to the second terminal device by way of reserved signaling is higher than the priority of the PSFCH that the second terminal device needs to receive, or when the above first condition is met, the first terminal The device sends reservation signaling in the second time slot before the first time slot to reserve PSSCH resources in the first time slot, and sends the PSSCH to the second terminal device in the first time slot.

For another example, when the first terminal device perceives that the second terminal device needs to receive the PSFCH in the first time slot, if the priority of the PSSCH that the first terminal device intends to send to the second terminal device is higher than the first terminal device perceives If the second terminal device needs the priority of all PSFCHs received in the first time slot, or meets the above-mentioned first condition, the first terminal device sends the PSSCH to the second terminal device in the first time slot.

For another example, in addition to indicating the source identification and whether the PSFCH needs to be fed back, the SCI also indicates the priority. The first terminal device detects the SCI sent by the second terminal device, knows that the second terminal device needs to receive the PSFCH in the first time slot, and the first terminal device can know the priority of the PSFCH through the priority field of the SCI.

When the priority of the PSSCH that the first terminal device intends to send to the second terminal device is higher than the priority of the PSFCH that the second terminal device needs to receive, the first terminal device can be directly in the first terminal device without using reservation signaling. A time slot sends the PSSCH to the second terminal device. For the reservation signaling method, the first terminal device can send the reservation signaling in the second time slot before the first time slot to reserve the PSSCH in the first time slot. PSSCH resources, and send the PSSCH to the second terminal device in the first time slot.

It can be known from the foregoing embodiment that the first terminal device does not send at least one PSSCH to the second terminal device within the time unit when the second terminal device needs to receive the PFSCH. In this way, unnecessary PSSCH will not be sent, thereby reducing interference to other terminal devices and reducing system congestion.

Embodiments of the third aspect

The embodiment of the present application provides a method for sending side link information, which is described from the side of the first terminal device. The embodiments of the present application can be executed independently, and the first terminal device, the second terminal device, and the third terminal device are different from the first terminal device, the second terminal device, and the third terminal device in the embodiments of the first and second aspects, respectively. The embodiments of the third aspect may also be combined with the embodiments of the first and second aspects. The first terminal device, the second terminal device, and the third terminal device may be combined with the first terminal in the embodiments of the first and second aspects, respectively. The device, the second terminal device, and the third terminal device are the same. The same content as the embodiments of the first and second aspects will not be repeated. In addition, the second terminal device and the third terminal device may be the same terminal device or different terminal devices.

FIG. 12 is a schematic diagram of a method for sending side link information according to an embodiment of the present application. As shown in FIG. 12, the method includes:

1201. The first terminal device determines that it needs to receive the first physical side link shared channel in a time unit;

1202. The first terminal device excludes from the candidate resource set for sending at least one physical side link shared channel to the second terminal device that is used to send the second physical side link shared channel and needs to be received within the time unit. The resource of the physical side link feedback channel associated with the second physical side link shared channel.

It is worth noting that the above Figure 12 only schematically illustrates the embodiments of the present application, but the present application is not limited thereto. For example, the order of execution between operations can be appropriately adjusted, and some other operations can be added or some operations can be reduced. Those skilled in the art can make appropriate modifications based on the foregoing content, and are not limited to the description of the foregoing FIG. 12.

In some embodiments, when the first terminal device learns through reservation signaling that it will receive the first PSSCH in the first time slot, the first terminal device will not select or preferentially select the first resource for the second time slot. The terminal device sends the second PSSCH, where the first resource will cause the first terminal device to receive the PSFCH associated with the second PSSCH in the first time slot.

For example, the first terminal device may know in advance that it will receive the PSSCH from the third terminal device in the first time slot through reservation signaling, for example, the reservation signaling of the time slot nk (k>0) indicates the first terminal device The device needs to receive PSSCH in time slot n. In order to avoid the need to receive both PSSCH and PSFCH in the same time slot, when the first terminal device selects the resource for sending PSSCH to the second terminal device, it can avoid the selection of the PSSCH and PSFCH according to the established mapping relationship between PSSCH and PSFCH. This results in receiving both PSSCH and PSFCH PSSCH resources in the same time slot.

In an embodiment, the first terminal device compares the priorities of the first physical side link shared channel and the physical side link feedback channel; and determines whether to send the second physical side link shared channel according to the priority.

In some embodiments, the first terminal device transmits the second physical side link when the priority of the physical side link feedback channel is higher than or equal to the priority of the first physical side link shared channel Link shared channel; when the priority of the physical side link feedback channel is lower than the priority of the first physical side link shared channel, the second physical side link shared channel is not sent.

For example, the first terminal device learns from the reservation signaling that it needs to receive the first PSSCH in the first time slot, and the first terminal device needs to select resources to transmit the second PSSCH associated with the PSFCH. When the priority of the PSFCH is higher than the first PSSCH. When the priority of the PSSCH is selected, the first terminal device can select the first resource to transmit the second PSSCH, where the first resource will cause the first terminal device to receive the PSFCH associated with the second PSSCH in the first time slot.

When the first terminal device needs to receive PSSCH and PSFCH in the same time slot, the reception of PSFCH needs to meet certain conditions, so only when the conditions are met, the first terminal device can schedule PSFCH reception to the same time slot as PSSCH reception , Otherwise, when PSFCH and PSSCH are in the same time slot, PSFCH will be discarded and PSFCH will not be received.

In some embodiments, the first terminal device determines the priority of the first physical side link shared channel and/or the priority of the physical side link feedback channel; and determines whether to send the The second physical side link shares the channel.

In some embodiments, the first terminal device transmits the second physical side link shared channel when the second condition is satisfied; when the second condition is not satisfied, does not transmit the second physical side link Road shared channel.

Wherein, the second condition includes at least one of the following:

-The priority of the shared channel of the first physical side link is higher than the third threshold, and/or,

-The priority of the first physical side link shared channel is higher than the third threshold and the priority of the physical side link feedback channel is higher than the fourth threshold.

In some embodiments, when the first terminal device does not meet the second condition,

If the priority of the physical side link feedback channel is higher than the priority of the first physical side link shared channel, sending the second physical side link shared channel;

If the priority of the physical side link feedback channel is lower than or equal to the priority of the first physical side link shared channel, the second physical side link shared channel is not sent.

For example, the first terminal device learns from the reservation signaling that it needs to receive the first PSSCH in the first time slot, and the first terminal device needs to select resources to transmit the second PSSCH associated with the PSFCH. When the priority of the PSFCH is higher than the first PSSCH. PSSCH priority, or when the second condition is met, the first terminal device can select the first resource to send the second PSSCH, where the first resource will cause the first terminal device to receive the second PSSCH associated with the second PSSCH in the first time slot PSFCH.

It can be seen from the foregoing embodiment that the first terminal device determines that it needs to receive the first physical side link shared channel in a time unit; and excludes from the candidate resource set the second physical side link shared channel that is used to transmit the second physical side link shared channel at the time. The unit needs to receive the resources of the physical side link feedback channel associated with the second physical side link shared channel. As a result, the PSSCH that causes conflicts will not be transmitted, reducing system congestion.

Embodiment of the fourth aspect

The embodiment of the present application provides a method for receiving side link information, which is described from the side of the second terminal device. The embodiments of the present application can be executed independently, or can be combined with the embodiments of the first to third aspects. The same content as the embodiments of the first to third aspects will not be repeated.

In the embodiment of this application, in a time unit (such as a time slot or a non-slot) that does not need to receive PSFCH, the terminal device does not expect to try to decode more than N1 PSCCHs, and/or, at a time when it needs to receive PSFCH Within the unit, the terminal device does not expect to try to decode more than N2 PSCCHs, where N2<N1.

For example, when a terminal device monitors a PSCCH in a time slot, it needs to try to decode multiple PSCCHs. Due to the limitation of the capabilities of the terminal equipment, the number of PSCCHs that try to be decoded in a time slot cannot be unlimited, but is limited to a certain number.

Assuming that in a time slot that does not need to receive PSFCH, the upper limit of the number of PSCCHs that the terminal device can try to decode is N1. In a time slot that needs to receive the PSFCH, since the terminal device needs to divide its capacity to receive one or more PSFCHs, the upper limit N2 of the number of PSCCHs that the terminal device can try to decode is set to be less than N1. through

In the embodiment of the present application, by setting different upper limits for different types of time slots, it can be ensured that the terminal device will not exceed the terminal device's own capabilities during decoding, thereby reducing implementation complexity and power consumption.

Embodiments of the fifth aspect

The embodiment of the present application provides an apparatus for receiving side link information. The apparatus may be, for example, a terminal device, or may be some or some components or components configured in the terminal device, and the same content as the embodiments of the first aspect to the fourth aspect will not be repeated.

FIG. 13 is a schematic diagram of an apparatus for receiving side link information according to an embodiment of the present application. As shown in FIG. 13, the apparatus 1300 for receiving side link information includes:

The processing unit 1301, which determines that at least one physical side link feedback channel needs to be received for a time unit when side link data is not required to be sent; and

The receiving unit 1302, which receives one of the at least one physical side link shared channel and the at least one physical side link feedback channel within the time unit, and/or, receives the at least one physical side link shared channel when a condition is met. One physical side link shared channel and the at least one physical side link feedback channel.

In some embodiments, the processing unit 1301 does not monitor the physical side link control channel within the time unit; and the receiving unit 1302 receives the at least one physical side link feedback channel but does not receive the at least one physical side link Shared channel.

In some embodiments, the processing unit 1301 excludes resources reserved by the time unit that does not monitor the physical side link control channel when selecting side link resources.

In some embodiments, the processing unit 1301 monitors the physical side link control channel within the time unit; and the receiving unit 1302 receives the at least one physical side link feedback channel but does not receive the at least one physical side link shared channel.

In some embodiments, the processing unit 1301 compares the at least one physical side link feedback channel and the at least one physical side link shared channel in the time unit. Priority of the physical side link shared channel and the at least one physical side link feedback channel; and determining whether to receive the at least one physical side link shared channel or the at least one physical side link feedback channel according to the priority .

In some embodiments, when the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, the processing unit 1301 does not monitor the physical side Link control channel, the receiving unit 1302 receives the at least one physical side link feedback channel and does not receive the at least one physical side link shared channel;

In the case that the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the processing unit 1301 monitors the physical side link control channel and the receiving unit 1302 receives The at least one physical side link shares a channel without receiving the at least one physical side link feedback channel.

In some embodiments, when the at least one physical side link feedback channel needs to be received in the time unit but the at least one physical side link shared channel is not needed, the processing unit 1301 does not monitor the physical side link Channel control channel, and the receiving unit 1302 receives the at least one physical side link feedback channel.

In some embodiments, the processing unit 1301 monitors the physical side link control channel in the time unit,

In the case that both the at least one physical side link feedback channel and the at least one physical side link shared channel need to be received, compare the at least one physical side link shared channel with the at least one physical side link The priority of the channel feedback channel; and

Determine whether to receive the at least one physical side link shared channel or the at least one physical side link feedback channel according to the priority.

In some embodiments, when the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, the receiving unit 1302 receives the at least one One physical side link feedback channel without receiving the at least one physical side link shared channel;

In a case where the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the receiving unit 1302 receives the at least one physical side link shared channel and The at least one physical side link feedback channel is not received.

In some embodiments, the processing unit 1301 monitors the physical side link control channel in the time unit;

In the case that the at least one physical side link feedback channel needs to be received in the time unit but the at least one physical side link shared channel is not required to be received, the receiving unit 1302 receives the at least one physical side link feedback channel .

In some embodiments, the processing unit 1301 determines the priority of the at least one physical side link shared channel and/or the priority of the at least one physical side link feedback channel; and determines to receive the At least one physical side link shared channel and/or the at least one physical side link feedback channel.

In some embodiments, when the first condition is met, the processing unit 1301 monitors the physical side link control channel, and the receiving unit 1302 receives the at least one physical side link shared channel, and receives the at least one physical side link. Link feedback channel;

The first condition includes: the highest priority of the at least one physical side link shared channel is higher than a first threshold, and/or the highest priority of the at least one physical side link shared channel is higher than the first threshold And the highest priority of the at least one physical side link feedback channel is higher than the second threshold.

In some embodiments, the processing unit 1301 monitors the physical side link control channel within the time unit; and when the first condition is met, the receiving unit 1302 receives the at least one physical side link shared channel, and receives The at least one physical side link feedback channel;

In some embodiments, the processing unit 1301 does not monitor the physical side link control channel and the receiving unit 1302 does not receive the at least one physical side link shared channel when the first condition is not satisfied or does not need to receive the at least one physical side link shared channel. At least one physical side link shared channel, receiving the at least one physical side link feedback channel;

In some embodiments, the processing unit 1301 monitors the physical side link control channel in the time unit; and when the first condition is not met, or does not need to receive the at least one physical side link shared channel, receive The unit 1302 does not receive the at least one physical side link shared channel, but receives the at least one physical side link feedback channel;

In some embodiments, if the first condition is not met,

If the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, or there is no need to receive the at least one physical side link shared channel, then The processing unit 1301 does not monitor the physical side link control channel, and the receiving unit 1302 receives the at least one physical side link feedback channel but does not receive the at least one physical side link shared channel;

If the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the processing unit 1301 monitors the physical side link control channel and the receiving unit 1302 receives the At least one physical side link shares a channel without receiving the at least one physical side link feedback channel;

In some embodiments, the processing unit 1301 monitors the physical side link control channel in the time unit when the first condition is not met,

If the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, or there is no need to receive the at least one physical side link shared channel, then The receiving unit 1302 receives the at least one physical side link feedback channel but does not receive the at least one physical side link shared channel;

If the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the receiving unit 1302 receives the at least one physical side link shared channel and does not receive The at least one physical side link feedback channel;

It is worth noting that the above only describes the components or modules related to the application, but the application is not limited to this. The apparatus 1300 for receiving side link information may also include other components or modules. For the specific content of these components or modules, reference may be made to related technologies.

In addition, for the sake of simplicity, FIG. 13 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The foregoing components or modules can be implemented by hardware facilities such as a processor, a memory, a transmitter, and a receiver; the implementation of this application does not limit this.

Embodiments of the sixth aspect

The embodiment of the present application provides a device for sending side link information. The apparatus may be, for example, a terminal device, or may be some or some parts or components configured in the terminal device, and the same content as the embodiments of the first aspect to the fourth aspect will not be repeated.

FIG. 14 is a schematic diagram of a device for sending side link information according to an embodiment of the present application. In some embodiments, as shown in FIG. 14, the device 1400 for sending side link information includes:

The determining unit 1401 determines that the second terminal needs to receive at least one physical side link feedback channel in a time unit; and

The sending unit 1402 excludes the resource in the time unit from the candidate resource set for sending at least one physical side link shared channel to the second terminal device.

In some embodiments, the sending unit 1402 does not send at least one physical side link shared channel to the second terminal device within the time unit.

In some embodiments, the determining unit 1402 determines that the first physical side link shared channel needs to be received in a time unit; and the sending unit 1402 sends the candidate resource set of at least one physical side link shared channel to the second terminal device. The resources used for transmitting the second physical side link shared channel and need to receive the physical side link feedback channel associated with the second physical side link shared channel within the time unit are excluded.

It is worth noting that the above only describes the components or modules related to the application, but the application is not limited to this. The device 1400 for sending side link information may also include other components or modules. For the specific content of these components or modules, reference may be made to related technologies.

In addition, for the sake of simplicity, FIG. 14 only exemplarily shows the connection relationship or signal direction between various components or modules, but it should be clear to those skilled in the art that various related technologies such as bus connection can be used. The foregoing components or modules can be implemented by hardware facilities such as a processor, a memory, a transmitter, and a receiver; the implementation of this application does not limit this.

In addition, the first terminal device determines that it needs to receive the first physical side link shared channel in a time unit; and excludes from the candidate resource set that the second physical side link shared channel needs to be received in the time unit for transmitting the second physical side link shared channel. The resource of the physical side link feedback channel associated with the second physical side link shared channel. As a result, the PSSCH that causes conflicts will not be transmitted, reducing system congestion.

Embodiments of the seventh aspect

The embodiments of the present application also provide a communication system, which can be referred to FIG. 1, and the same content as the embodiments of the first aspect to the sixth aspect will not be repeated.

The embodiment of the present application also provides a network device, which may be a base station, for example, but the present application is not limited to this, and may also be other network devices.

FIG. 15 is a schematic diagram of the structure of a network device according to an embodiment of the present application. As shown in FIG. 15, the network device 1500 may include: a processor 1510 (for example, a central processing unit CPU) and a memory 1520; the memory 1520 is coupled to the processor 1510. The memory 1520 can store various data; in addition, it also stores an information processing program 1530, and the program 1530 is executed under the control of the processor 1510.

In addition, as shown in FIG. 15, the network device 1500 may further include: a transceiver 1540 and an antenna 1550, etc.; wherein the functions of the above-mentioned components are similar to those of the prior art, and will not be repeated here. It should be noted that the network device 1500 does not necessarily include all the components shown in FIG. 15; in addition, the network device 1500 may also include components not shown in FIG. 15, and the prior art can be referred to.

The embodiment of the present application also provides a terminal device, but the present application is not limited to this, and may also be other devices.

FIG. 16 is a schematic diagram of a terminal device according to an embodiment of the present application. As shown in FIG. 16, the terminal device 1600 may include a processor 1610 and a memory 1620; the memory 1620 stores data and programs, and is coupled to the processor 1610. It is worth noting that this figure is exemplary; other types of structures can also be used to supplement or replace this structure to achieve telecommunication functions or other functions.

For example, the processor 1610 may be configured to execute a program to implement the method for receiving side link information as described in the embodiment of the first aspect. For example, the processor 1610 may be configured to perform the following control: determine that at least one physical side link feedback channel needs to be received in a time unit (such as a time slot or a non-slot) when side link data is not required to be sent; and Receiving one of at least one physical side link shared channel and the at least one physical side link feedback channel within the time unit, and/or receiving the at least one physical side link shared channel if a condition is met And the at least one physical side link feedback channel.

For example, the processor 1610 may be configured to execute a program to implement the method for sending side link information as described in the embodiment of the second aspect. For example, the processor 1610 may be configured to perform the following control: determine that the second terminal needs to receive at least one physical side link feedback channel in a time unit (for example, a time slot or a non-slot); Sending the resource excluded in the time unit from the candidate resource set of the at least one physical side link shared channel.

For example, the processor 1610 may be configured to execute a program to implement the method for sending side link information as described in the embodiment of the third aspect. For example, the processor 1610 may be configured to perform the following control: determine that the first physical side link shared channel needs to be received in a unit of time; The resource of the physical side link feedback channel associated with the second physical side link shared channel needs to be received in the time unit.

For example, the processor 1610 may be configured to execute a program to implement the method for receiving side link information as described in the embodiment of the fourth aspect. For example, the processor 1610 may be configured to perform the following control: it is not expected to try to decode more than N1 PSCCHs in a time unit (such as a time slot or a non-slot) that does not need to receive the PSFCH, and/or, when a PSFCH is required Within the time unit of receiving the PSFCH, it is not expected to try to decode more than N2 PSCCHs, where N2<N1.

As shown in FIG. 16, the terminal device 1600 may further include: a communication module 1630, an input unit 1640, a display 1650, and a power supply 1660. Among them, the functions of the above-mentioned components are similar to those of the prior art, and will not be repeated here. It is worth noting that the terminal device 1600 does not necessarily include all the components shown in FIG. 16, and the above-mentioned components are not necessary; in addition, the terminal device 1600 may also include components not shown in FIG. There is technology.

An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the side link information receiving method described in the embodiments of the first and fourth aspects .

An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the side link information sending method described in the embodiments of the second and third aspects.

The above devices and methods of this application can be implemented by hardware, or can be implemented by hardware combined with software. This application relates to such a computer-readable program. When the program is executed by a logic component, the logic component can realize the above-mentioned device or constituent component, or the logic component can realize the above-mentioned various methods. Or steps. This application also relates to storage media used to store the above programs, such as hard disks, magnetic disks, optical disks, DVDs, flash memory, etc.

The method/device described in combination with the embodiments of the present application may be directly embodied as hardware, a software module executed by a processor, or a combination of the two. For example, one or more of the functional block diagrams and/or one or more combinations of the functional block diagrams shown in the figure may correspond to each software module of the computer program flow or each hardware module. These software modules can respectively correspond to the steps shown in the figure. These hardware modules can be implemented by solidifying these software modules by using a field programmable gate array (FPGA), for example.

The software module can be located in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM or any other form of storage medium known in the art. A storage medium may be coupled to the processor, so that the processor can read information from the storage medium and write information to the storage medium; or the storage medium may be a component of the processor. The processor and the storage medium may be located in the ASIC. The software module can be stored in the memory of the mobile terminal, or can be stored in a memory card that can be inserted into the mobile terminal. For example, if the device (such as a mobile terminal) uses a larger-capacity MEGA-SIM card or a large-capacity flash memory device, the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.

One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can be implemented as general-purpose processors, digital signal processors (DSPs) for performing the functions described in this application. ), application specific integrated circuit (ASIC), field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component or any appropriate combination thereof. One or more of the functional blocks described in the drawings and/or one or more combinations of the functional blocks can also be implemented as a combination of computing devices, for example, a combination of a DSP and a microprocessor, or multiple micro-processing Processor, one or more microprocessors in communication with the DSP, or any other such configuration.

The application is described above in conjunction with specific implementations, but it should be clear to those skilled in the art that these descriptions are all exemplary and do not limit the scope of protection of the application. Those skilled in the art can make various variations and modifications to the application according to the spirit and principle of the application, and these variations and modifications are also within the scope of the application.

Regarding the implementation including the above examples, the following supplementary notes are also disclosed:

Supplement 1. A method for receiving side link information, including:

The second terminal device determines that it needs to receive at least one physical side link feedback channel in a time unit (for example, a time slot or a non-slot) that does not need to send side link data;

The second terminal device receives one of the at least one physical side link shared channel and the at least one physical side link feedback channel within the time unit, and/or, if the condition is met, receives the At least one physical side link shared channel and the at least one physical side link feedback channel.

Supplement 2. The method according to Supplement 1, wherein the method further includes:

The second terminal device does not monitor the physical side link control channel within the time unit; and the second terminal device receives the at least one physical side link feedback channel but does not receive the at least one physical side link Shared channel.

Supplement 3. The method according to Supplement 2, wherein the method further includes:

When the second terminal device performs edge link resource selection, exclude the resources reserved by the time unit that does not monitor the physical edge link control channel.

Supplement 4. The method according to Supplement 1, wherein the method further includes:

The second terminal device monitors the physical side link control channel within the time unit; and the second terminal device receives the at least one physical side link feedback channel but does not receive the at least one physical side link shared channel.

Supplement 5. The method according to Supplement 1, wherein the method further includes:

When the second terminal device needs to receive both the at least one physical side link feedback channel and the at least one physical side link shared channel within the time unit, compare the at least one physical side link The priority of the shared channel and the at least one physical side link feedback channel; and

Appendix 6. The method according to appendix 5, wherein the highest priority of the second terminal device on the at least one physical side link feedback channel is higher than or equal to the at least one physical side link shared channel In the case of the highest priority of, receiving the at least one physical side link feedback channel without monitoring the physical side link control channel and not receiving the at least one physical side link shared channel;

Supplement 7. The method according to Supplement 1, wherein the second terminal device needs to receive the at least one physical side link feedback channel within the time unit but does not need to receive the at least one physical side link In the case of a shared channel, the at least one physical side link feedback channel is received without monitoring the physical side link control channel.

Appendix 8. The method according to Appendix 1, wherein the method further includes:

The second terminal device monitors the physical side link control channel in the time unit, and

Appendix 9. The method according to Appendix 8, wherein the highest priority of the second terminal device on the at least one physical side link feedback channel is higher than or equal to the at least one physical side link shared channel Receiving the at least one physical side link feedback channel without receiving the at least one physical side link shared channel;

In the case that the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the at least one physical side link shared channel is received without receiving the shared channel. Said at least one physical side link feedback channel.

Appendix 10. The method according to Appendix 1, wherein the method further includes:

The second terminal device monitors the physical side link control channel in the time unit; and

In a case where the at least one physical side link feedback channel needs to be received in the time unit but the at least one physical side link shared channel is not required to be received, the at least one physical side link feedback channel is received.

Appendix 11. The method according to Appendix 1, wherein the method further includes:

Determining the priority of the at least one physical side link shared channel and/or the priority of the at least one physical side link feedback channel by the second terminal device; and

Determine to receive the at least one physical side link shared channel and/or the at least one physical side link feedback channel according to the priority.

Supplement 12. The method according to Supplement 11, wherein the second terminal device monitors the physical side link control channel and receives the at least one physical side link shared channel when the first condition is met, And receiving the at least one physical side link feedback channel.

Appendix 13. The method according to Appendix 11, wherein the method further includes:

When the first condition is met, the at least one physical side link shared channel is received, and the at least one physical side link feedback channel is received.

Supplement 14. The method according to Supplement 11, wherein the second terminal device does not monitor the physical side when the first condition is not met or does not need to receive the at least one physical side link shared channel The link control channel does not receive the at least one physical side link shared channel, and the at least one physical side link feedback channel is received.

Supplement 15. The method according to Supplement 11, wherein the method further includes:

When the first condition is not met, or the at least one physical side link shared channel does not need to be received, the at least one physical side link shared channel is not received, and the at least one physical side link feedback channel is received.

Supplement 16. The method according to Supplement 11, wherein the second terminal device does not meet the first condition,

If the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, or there is no need to receive the at least one physical side link shared channel, then Receiving the at least one physical side link feedback channel without monitoring the physical side link control channel and not receiving the at least one physical side link shared channel;

If the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, monitor the physical side link control channel and receive the at least one physical side link The channel is shared without receiving the at least one physical side link feedback channel.

Supplement 17. The method according to Supplement 11, wherein the second terminal device monitors the physical side link control channel in the time unit when the first condition is not met,

If the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, or there is no need to receive the at least one physical side link shared channel, then Receiving the at least one physical side link feedback channel without receiving the at least one physical side link shared channel;

If the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, then the at least one physical side link shared channel is received without receiving the at least one physical side link shared channel. A physical side link feedback channel.

Supplement 18. The method according to any one of Supplements 12 to 17, wherein the first condition includes:

The highest priority of the at least one physical side link shared channel is higher than the first threshold, and/or,

The highest priority of the at least one physical side link shared channel is higher than the first threshold and the highest priority of the at least one physical side link feedback channel is higher than the second threshold.

Attachment 19. A method for sending side link information, including:

The first terminal device determines that the second terminal needs to receive at least one physical side link feedback channel in a time unit (e.g., time slot or non-slot); and

The first terminal device excludes the resource within the time unit from the candidate resource set for sending at least one physical side link shared channel to the second terminal device.

Supplement 20. The method according to Supplement 19, wherein the first terminal device does not send at least one physical side link shared channel to the second terminal device within the time unit.

Supplement 21. The method according to Supplement 19 or 20, wherein the method further includes:

Comparing the priorities of the at least one physical side link shared channel and the at least one physical side link feedback channel by the first terminal device; and

Determine whether to transmit the at least one physical side link shared channel according to the priority.

Supplement 22. The method according to Supplement 21, wherein the highest priority of the at least one physical side link feedback channel of the first terminal device is higher than or equal to the at least one physical side link shared channel In the case of the highest priority, the at least one physical side link shared channel is not sent;

Supplement 23. The method according to Supplement 19 or 20, wherein the method further includes:

Determining the priority of the at least one physical side link shared channel and/or the priority of the at least one physical side link feedback channel by the first terminal device; and

Supplement 24. The method according to Supplement 23, wherein the first terminal device transmits the at least one physical side link shared channel when the first condition is satisfied.

Supplement 25. The method according to Supplement 23, wherein the first terminal device does not transmit the at least one physical side link shared channel when the first condition is not met.

Supplement 26. The method according to Supplement 23, wherein, when the first terminal device does not meet the first condition,

Supplement 27. The method according to any one of Supplements 24 to 26, wherein the first condition includes:

Supplement 28. A method for sending side link information, including:

The first terminal device excludes from the candidate resource set for sending at least one physical side link shared channel to the second terminal device that is used to send the second physical side link shared channel and needs to receive the The second physical side link shares the resources of the physical side link feedback channel associated with the channel.

Supplement 29. The method according to Supplement 28, wherein the method further includes:

Comparing the priorities of the first physical side link shared channel and the physical side link feedback channel by the first terminal device; and

Determine whether to send the second physical side link shared channel according to the priority.

Supplement 30. The method according to Supplement 29, wherein the priority of the first terminal device on the physical side link feedback channel is higher than or equal to the priority of the first physical side link shared channel In the case of sending the second physical side link shared channel;

When the priority of the physical side link feedback channel is lower than the priority of the first physical side link shared channel, the second physical side link shared channel is not sent.

Appendix 31. The method according to Appendix 28, wherein the method further includes:

Determining, by the first terminal device, the priority of the first physical side link shared channel and/or the priority of the physical side link feedback channel; and

Supplement 32. The method according to Supplement 31, wherein the first terminal device transmits the second physical side link shared channel when a second condition is met.

Supplement 33. The method according to Supplement 31, wherein the first terminal device does not send the second physical side link shared channel when the second condition is not met.

Supplement 34. The method according to Supplement 31, wherein the first terminal device does not meet the second condition,

If the priority of the physical side link feedback channel is higher than or equal to the priority of the first physical side link shared channel, sending the second physical side link shared channel;

If the priority of the physical side link feedback channel is lower than the priority of the first physical side link shared channel, the second physical side link shared channel is not sent.

Supplement 35. The method according to any one of Supplements 32 to 34, wherein the second condition includes:

The priority of the first physical side link shared channel is higher than the third threshold, and/or,

The priority of the first physical side link shared channel is higher than the third threshold and the priority of the physical side link feedback channel is higher than the fourth threshold.

Supplement 36. A method for receiving side link information, including:

In a time unit that does not need to receive PSFCH (for example, time slot or non-slot), the terminal device does not expect to try to decode more than N1 PSCCHs, and/or, in a time unit that needs to receive PSFCH, the terminal device does not expect Try to decode more than N2 PSCCHs, where N2<N1.

Appendix 37. A terminal device comprising a memory and a processor, the memory storing a computer program, and the processor is configured to execute the computer program to implement any one of Appendix 1 to 18, 36 The method for receiving side link information, or the method for sending side link information as described in any one of Supplements 19 to 35.

Supplement 38, a communication system, including:

A terminal device, which includes a memory and a processor, the memory stores a computer program, and the processor is configured to execute the computer program to implement the side link information as described in any one of appendix 1 to 18, 36 The method for receiving, or the method for sending side link information as described in any one of Supplements 19 to 35.

Claims

A receiving device for side link information includes:

A processing unit, which determines that at least one physical side link feedback channel needs to be received for a time unit when side link data is not required to be sent; and

The receiving unit receives one of at least one physical side link shared channel and the at least one physical side link feedback channel within the time unit, and/or, receives the at least one physical side link feedback channel when a condition is met The physical side link shared channel and the at least one physical side link feedback channel.
The apparatus according to claim 1, wherein the processing section does not monitor a physical side link control channel in the time unit; and the receiving section receives the at least one physical side link feedback channel without receiving all The at least one physical side link shares a channel.
The apparatus according to claim 2, wherein the processing unit excludes resources reserved by the time unit that does not monitor the physical side link control channel when selecting side link resources.
The apparatus according to claim 1, wherein the processing section monitors a physical side link control channel in the time unit; and the receiving section receives the at least one physical side link feedback channel without receiving the At least one physical side link shares the channel.
The apparatus according to claim 1, wherein the processing unit needs to receive both the at least one physical side link feedback channel and the at least one physical side link shared channel in the time unit Comparing the priorities of the at least one physical side link shared channel and the at least one physical side link feedback channel; and determining whether to receive the at least one physical side link shared channel or the at least one physical side link shared channel according to the priority Physical side link feedback channel.
The apparatus according to claim 5, wherein, in the case that the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, the The processing unit does not monitor the physical side link control channel, and the receiving unit receives the at least one physical side link feedback channel and does not receive the at least one physical side link shared channel;

In the case that the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the processing unit monitors the physical side link control channel, and the The receiving unit receives the at least one physical side link shared channel without receiving the at least one physical side link feedback channel.
The apparatus according to claim 1, wherein, in the case where it is necessary to receive the at least one physical side link feedback channel in the time unit without receiving the at least one physical side link shared channel, the processing The part does not monitor the physical side link control channel, and the receiving part receives the at least one physical side link feedback channel.
The apparatus according to claim 1, wherein the processing unit monitors the physical side link control channel in the time unit, and needs to receive both the at least one physical side link feedback channel and the at least one physical side link feedback channel. In the case of one physical side link shared channel, comparing the priority of the at least one physical side link shared channel and the at least one physical side link feedback channel; and determining to receive the at least one physical side link according to the priority The side link shared channel is also the at least one physical side link feedback channel.
The apparatus according to claim 8, wherein, in the case that the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, the The receiving unit receives the at least one physical side link feedback channel but does not receive the at least one physical side link shared channel;

In the case that the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the receiving unit receives the at least one physical side link shared channel Instead of receiving the at least one physical side link feedback channel.
The device according to claim 1, wherein the processing unit monitors a physical side link control channel in the time unit; and

In the case that the at least one physical side link feedback channel needs to be received in the time unit and the at least one physical side link shared channel does not need to be received, the receiving unit receives the at least one physical side link feedback channel.
The apparatus according to claim 1, wherein the processing unit determines the priority of the at least one physical side link shared channel and/or the priority of the at least one physical side link feedback channel; and according to the The priority is determined to receive the at least one physical side link shared channel and/or the at least one physical side link feedback channel.
The apparatus according to claim 11, wherein the processing unit listens to the physical side link control channel when the first condition is met, and the receiving unit receives the at least one physical side link shared channel, and Receiving the at least one physical side link feedback channel;

The first condition includes: the highest priority of the at least one physical side link shared channel is higher than a first threshold, and/or the highest priority of the at least one physical side link shared channel is higher than the first threshold And the highest priority of the at least one physical side link feedback channel is higher than the second threshold.
11. The apparatus according to claim 11, wherein the processing unit monitors the physical side link control channel in the time unit; and in a case where the first condition is satisfied, the receiving unit receives the at least one physical side Link sharing channel, and receiving the at least one physical side link feedback channel;

The first condition includes: the highest priority of the at least one physical side link shared channel is higher than a first threshold, and/or the highest priority of the at least one physical side link shared channel is higher than the first threshold And the highest priority of the at least one physical side link feedback channel is higher than the second threshold.
The apparatus according to claim 11, wherein the processing unit does not monitor the physical side link control channel when the first condition is not satisfied or does not need to receive the at least one physical side link shared channel, and The receiving unit does not receive the at least one physical side link shared channel, but receives the at least one physical side link feedback channel;

The first condition includes: the highest priority of the at least one physical side link shared channel is higher than a first threshold, and/or the highest priority of the at least one physical side link shared channel is higher than the first threshold And the highest priority of the at least one physical side link feedback channel is higher than the second threshold.
The apparatus according to claim 11, wherein the processing unit monitors the physical side link control channel in the time unit; and when the first condition is not met, or does not need to receive the at least one physical side link shared In the case of a channel, the receiving unit does not receive the at least one physical side link shared channel, but receives the at least one physical side link feedback channel;

The first condition includes: the highest priority of the at least one physical side link shared channel is higher than a first threshold, and/or the highest priority of the at least one physical side link shared channel is higher than the first threshold And the highest priority of the at least one physical side link feedback channel is higher than the second threshold.
The device according to claim 11, wherein, in the case where the first condition is not satisfied,

If the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, or there is no need to receive the at least one physical side link shared channel, then The processing unit does not monitor the physical side link control channel, and the receiving unit receives the at least one physical side link feedback channel but does not receive the at least one physical side link shared channel;

If the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the processing unit monitors the physical side link control channel, and the receiving unit Receiving the at least one physical side link shared channel without receiving the at least one physical side link feedback channel;

The first condition includes: the highest priority of the at least one physical side link shared channel is higher than a first threshold, and/or the highest priority of the at least one physical side link shared channel is higher than the first threshold And the highest priority of the at least one physical side link feedback channel is higher than the second threshold.
The device according to claim 11, wherein the processing unit monitors the physical side link control channel in the time unit when the first condition is not met,

If the highest priority of the at least one physical side link feedback channel is higher than or equal to the highest priority of the at least one physical side link shared channel, or there is no need to receive the at least one physical side link shared channel, then The receiving unit receives the at least one physical side link feedback channel but does not receive the at least one physical side link shared channel;

If the highest priority of the at least one physical side link feedback channel is lower than the highest priority of the at least one physical side link shared channel, the receiving unit receives the at least one physical side link shared channel without Receiving the at least one physical side link feedback channel;

The first condition includes: the highest priority of the at least one physical side link shared channel is higher than a first threshold, and/or the highest priority of the at least one physical side link shared channel is higher than the first threshold And the highest priority of the at least one physical side link feedback channel is higher than the second threshold.
A device for sending side link information includes:

A determining part, which determines that the second terminal needs to receive at least one physical side link feedback channel in a time unit; and

A sending unit that excludes the resources in the time unit from the candidate resource set for sending at least one physical side link shared channel to the second terminal device.
The apparatus according to claim 18, wherein the sending unit does not send at least one physical side link shared channel to the second terminal device within the time unit.
A device for sending side link information includes:

A determining part, which determines that the first physical side link shared channel needs to be received in a time unit; and

The sending unit, which excludes from the candidate resource set for sending at least one physical side link shared channel to the second terminal device that is used to send the second physical side link shared channel and needs to receive the second physical side link shared channel within the time unit. The physical side link shares the resources of the physical side link feedback channel associated with the channel.