CN115580932A

CN115580932A - Resource allocation method and resource allocation device

Info

Publication number: CN115580932A
Application number: CN202110702297.6A
Authority: CN
Inventors: 王婷; 郭文婷; 苏宏家; 卢磊
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2023-01-06
Also published as: WO2022267900A1

Abstract

The application provides a resource allocation method and a resource allocation device, which are beneficial to acquiring resource reservation information of two parties between devices adopting different wireless communication technologies and increasing the reliability of coexistence of the different wireless communication technologies. The method comprises the following steps: the first terminal equipment determines a first SCI and a second SCI, the first SCI is used for indicating resource reservation information, the second SCI is used for scheduling PSSCH, the first terminal equipment sends the first SCI and the second SCI, and the second terminal equipment receives and analyzes the first SCI or the second SCI and determines the resource reservation information or schedules the PSSCH.

Description

Resource allocation method and resource allocation device

Technical Field

The present application relates to the field of wireless communications, and in particular, to a resource allocation method and a resource allocation apparatus.

Background

In the internet of vehicles technology, the time delay requirement of application scenarios such as intelligent driving and automatic driving on the communication technology is very high, the long term evolution-vehicle to evolution (LTE-V2X) technology at the present stage cannot be effectively supported, and the new radio-vehicle to evolution (NR-V2X) technology can support lower transmission time delay and reliable communication transmission, but faces the problem of spectrum resource shortage, so that the LTE-V2X technology and the NR-V2X technology face the problem of coexistence, so as to solve the problem of time delay requirement and spectrum resource shortage.

However, in the case of a shared channel, since resource reservation information of the other party cannot be acquired between devices communicating by using the LTE-V2X technology and devices communicating by using the NR-V2X technology, the same time-frequency resource is used when the devices communicate by using the respective wireless communication technologies, which causes large interference in communication between the devices and affects data transmission efficiency.

Disclosure of Invention

The application provides a resource allocation method and a resource allocation device, which are beneficial to acquiring resource reservation information of two parties between devices adopting different wireless communication technologies, improving the transmission efficiency of data, reducing the time delay of resource allocation and increasing the reliability of coexistence of different wireless communication technologies.

In a first aspect, the present application provides a resource allocation method, which may be performed by a first terminal device, and includes: the first terminal device determines first Sidelink Control Information (SCI) and a second SCI, where the first SCI is used for indicating resource reservation information, and the second SCI is used for scheduling a physical sidelink shared channel (psch); the first terminal device transmits a first SCI and a second SCI, the first SCI is carried on a Physical Sidelink Control Channel (PSCCH), the second SCI is carried on a PSCCH, and frequency domain resources of the first PSCCH and the second PSCCH do not overlap.

The resource allocation method provided by the embodiment of the application sends two SCIs based on the NR technology and is loaded through the PSCCH with non-overlapping frequency domain resources, so that the terminal equipment adopting the LTE technology can acquire resource reservation information of the terminal equipment adopting the NR technology, the terminal equipment adopting the NR technology can schedule the PSSCH, the transmission efficiency of data is improved, the time delay of resource allocation is reduced, and the reliability of coexistence of different wireless communication technologies is improved.

With reference to the first aspect, in some implementations of the first aspect, the first PSCCH occupies a first frequency-domain resource in a frequency domain, the first frequency-domain resource includes 2 consecutive Physical Resource Blocks (PRBs), and the first PSCCH occupies a first time-domain resource in a time domain; the second PSCCH occupies a second frequency domain resource in the frequency domain, the second frequency domain resource comprises N continuous PRBs and occupies a second time domain resource in the time domain, wherein N is a positive integer greater than or equal to 1, and the second time domain resource belongs to the first time domain resource.

With reference to the first aspect, in some implementation manners of the first aspect, the starting position of the first frequency domain resource is a starting position of a subchannel with a smallest sequence number in one or more subchannels occupied by the PSCCH corresponding to the first PSCCH, and an ending position of the first PSCCH and the starting position of the PSCCH are adjacent to each other in a frequency domain.

With reference to the first aspect, in certain implementations of the first aspect, the end position of the first PSCCH and the start position of the PSCCH corresponding to the first PSCCH are not adjacent in frequency domain.

With reference to the first aspect, in certain implementations of the first aspect, a start position of the second frequency-domain resource and an end position of the first frequency-domain resource are adjacent in a frequency domain.

With reference to the first aspect, in certain implementations of the first aspect, the first time domain resource includes all symbols except a last symbol in the first time unit.

With reference to the first aspect, in some implementations of the first aspect, a starting position of the second PSCCH in the time domain is a second symbol of the second time domain resource, and the second time domain resource includes M symbols, where M is a positive integer greater than or equal to 1.

In a second aspect, the present application provides another resource allocation method, which may be performed by a second terminal device, and the method includes: the second terminal equipment receives a first SCI and a second SCI, the first SCI is used for indicating resource reservation information, the second SCI is used for scheduling PSSCH, the first SCI is loaded on the first PSCCH, the second SCI is loaded on the second PSCCH, and frequency domain resources of the first PSCCH and frequency domain resources of the second PSCCH are not overlapped; and the second terminal equipment analyzes the first SCI or the second SCI and determines resource reservation information or scheduling PSSCH.

With reference to the second aspect, in some implementation manners of the second aspect, the first PSCCH occupies a first frequency-domain resource in a frequency domain, the first frequency-domain resource includes 2 consecutive PRBs, and the first PSCCH occupies a first time-domain resource in a time domain; the second PSCCH occupies a second frequency domain resource in the frequency domain, the second frequency domain resource comprises N continuous PRBs and occupies a second time domain resource in the time domain, wherein N is a positive integer greater than or equal to 1, and the second time domain resource belongs to the first time domain resource.

With reference to the second aspect, in some implementations of the second aspect, the starting position of the first frequency domain resource is a starting position of a subchannel with a smallest sequence number in one or more subchannels occupied by the PSCCH corresponding to the first PSCCH, and the ending position of the first PSCCH and the starting position of the PSCCH are adjacent to each other in a frequency domain.

With reference to the second aspect, in some implementations of the second aspect, the end position of the first PSCCH and the start position of the PSCCH corresponding to the first PSCCH are not adjacent in a frequency domain.

With reference to the second aspect, in certain implementations of the second aspect, the frequency domain starting position of the second frequency domain resource and the ending position of the first frequency domain resource are adjacent in the frequency domain.

With reference to the second aspect, in certain implementations of the second aspect, the first time domain resource includes all symbols except the last symbol in the first time unit.

With reference to the second aspect, in some implementations of the second aspect, a starting position of the second PSCCH in the time domain is a second symbol of the second time domain resource, and the second time domain resource includes M symbols, where M is a positive integer greater than or equal to 1.

In a third aspect, the present application provides a resource allocation method, which may be performed by a first terminal device, and includes: the first terminal equipment determines a first SCI and supplementary information of the first SCI, wherein the first SCI is used for indicating resource reservation information, and the first SCI and the supplementary information are used for scheduling PSSCH; the first terminal equipment transmits a first SCI and supplementary information, wherein the first SCI is carried on a first PSCCH, and the supplementary information is carried on a PSSCH.

The resource allocation method provided by the embodiment of the application only sends SCI once, and carries supplementary information on PSSCH through corresponding PSCCH, thereby being beneficial to enabling terminal equipment adopting LTE technology to acquire resource reservation information of terminal equipment adopting NR technology, enabling terminal equipment adopting NR technology to schedule PSSCH, being beneficial to solving the problem of acquiring resource reservation information of both sides between equipment adopting different wireless communication technologies, improving data transmission efficiency, reducing time delay of resource allocation, and increasing reliability of coexistence of different wireless communication technologies.

With reference to the third aspect, in certain implementations of the third aspect, the first PSCCH occupies first frequency-domain resources in the frequency domain, the first frequency-domain resources include 2 consecutive PRBs, and the first PSCCH occupies first time-domain resources in the time domain; the PSSCH occupies time-frequency resources other than the time-frequency resources occupied by the first PSCCH.

With reference to the third aspect, in certain implementations of the third aspect, the end position of the first PSCCH and the start position of the PSCCH are adjacent in the frequency domain.

With reference to the third aspect, in certain implementations of the third aspect, the end position of the first PSCCH and the start position of the PSCCH are not adjacent in the frequency domain.

With reference to the third aspect, in some implementations of the third aspect, the first time domain resource includes all symbols except a last symbol in the first time unit.

In a fourth aspect, the present application provides another resource allocation method, which may be performed by a second terminal device, and the method includes: the second terminal equipment receives the first SCI and the supplementary information of the first SCI, the first SCI is used for indicating resource reservation information, the first SCI and the supplementary information are used for scheduling PSSCH, the first SCI is loaded on the first PSCCH, and the supplementary information is loaded on the PSSCH; and the second terminal equipment analyzes the first SCI or the first SCI and the supplementary information, and determines resource reservation information or schedules the PSSCH.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first PSCCH occupies first frequency-domain resources in the frequency domain, the first frequency-domain resources include 2 consecutive PRBs, and the first PSCCH occupies first time-domain resources in the time domain; the PSSCH occupies time-frequency resources other than the time-frequency resources occupied by the first PSCCH.

With reference to the fourth aspect, in certain implementations of the fourth aspect, the end position of the first PSCCH and the start position of the PSCCH are adjacent in the frequency domain.

With reference to the fourth aspect, in some implementations of the fourth aspect, the end position of the first PSCCH and the start position of the PSCCH are not adjacent in the frequency domain.

With reference to the fourth aspect, in some implementations of the fourth aspect, the first time domain resource includes all symbols except the last symbol in the first time unit.

In a fifth aspect, the present application provides a resource allocation apparatus for performing the method in any possible implementation manner of the foregoing aspects. In particular, the apparatus comprises means for performing the method in any one of the possible implementations of the various aspects described above.

In a sixth aspect, the present application provides another resource configuration apparatus, including a processor, coupled to a memory, and configured to execute instructions in the memory to implement the method in any of the possible implementations of the foregoing aspects. Optionally, the apparatus further comprises a memory. Optionally, the apparatus further comprises a communication interface, the processor being coupled to the communication interface.

In a seventh aspect, the present application provides a processing apparatus comprising a processor and a memory. The processor is configured to read instructions stored in the memory and to receive signals via the receiver and transmit signals via the transmitter to perform the method of any one of the possible implementations of the aspects.

Optionally, there are one or more processors and one or more memories.

Alternatively, the memory may be integrated with the processor, or provided separately from the processor.

In a specific implementation process, the memory and the processor may be integrated on the same chip, or may be respectively disposed on different chips.

The related data exchange process, for example, the process of transmitting the indication information may be a process of outputting the indication information from the processor, and the process of receiving the capability information may be a process of receiving the input capability information from the processor. In particular, the data output by the processor may be output to a transmitter and the input data received by the processor may be from a receiver. The transmitter and receiver may be collectively referred to as a transceiver, among others.

The processing device in the seventh aspect may be a chip, the processor may be implemented by hardware or may be implemented by software, and when implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like; when implemented in software, the processor may be a general-purpose processor implemented by reading software code stored in a memory, which may be integrated with the processor, located external to the processor, or stand-alone.

In an eighth aspect, the present application provides a computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method in any of the possible implementations of the various aspects described above.

In a ninth aspect, the present application provides a computer-readable storage medium storing a computer program (which may also be referred to as code, or instructions) which, when executed on a computer, causes the computer to perform the method of any of the possible implementations of the above aspects.

Drawings

FIG. 1 is a schematic diagram of a communication system to which embodiments of the present application are applicable;

FIG. 2 is a schematic diagram of a time-frequency resource occupation scheme of adjacent transmissions;

FIG. 3 is a schematic diagram of a time-frequency resource occupation method of non-adjacent transmission;

FIG. 4 is a schematic diagram of a time-frequency resource occupying manner;

FIG. 5 is a schematic flow chart diagram of a resource allocation method provided in an embodiment of the present application;

fig. 6 is a schematic diagram of time-frequency resource occupation according to an embodiment of the present application;

fig. 7 is a schematic diagram of another time-frequency resource occupation provided in the embodiment of the present application;

fig. 8 is a schematic diagram of another time-frequency resource occupation provided in the embodiment of the present application;

fig. 9 is a schematic diagram of another time-frequency resource occupation provided in the embodiment of the present application;

FIG. 10 is a schematic flow chart diagram of another resource allocation method provided in the embodiments of the present application;

fig. 11 is a schematic diagram of another time-frequency resource occupation provided in the embodiment of the present application;

fig. 12 is a schematic diagram of another time-frequency resource occupation provided in the embodiment of the present application;

fig. 13 is a schematic block diagram of a resource configuration apparatus according to an embodiment of the present application;

fig. 14 is a schematic block diagram of another resource configuration apparatus provided in an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to a Dual Connectivity (DC) communication system, the dual connectivity communication system supports simultaneous deployment of two different wireless access systems, and communication between equipment based on the two different wireless access systems is allowed, so that the utilization rate of wireless resources can be improved, the system switching time delay is reduced, and the performance of a user and a system is improved. In the dual connectivity communication system, two network devices supporting different wireless access systems may be deployed simultaneously, and similarly, the terminal device may support simultaneous access to the two different network devices. Further, the technical scheme of the embodiment of the application can be applied to the internet of vehicles, such as vehicle to outside of the vehicle (V2X) communication, long term evolution-vehicle (LTE-V) communication for vehicle to vehicle (V2V) communication, or can be used in the fields of intelligent driving, intelligent internet of vehicles, and the like.

The wireless access system in the dual connectivity communication system may include, but is not limited to, the following systems: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a fifth generation (5 g) system, a New Radio (NR) system, or other evolved communication systems. For example, a Long Term Evolution (LTE) system and a New Radio (NR) system may be deployed simultaneously in a dual connectivity communication system, but the present invention is not limited thereto.

The terminal device in the embodiment of the present application may also be referred to as: user Equipment (UE), mobile Station (MS), mobile Terminal (MT), access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user device, etc.

The terminal device may be a device providing voice/data connectivity to a user, e.g. a handheld device, a vehicle mounted device, etc. with wireless connection capability. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (smart), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol), SIP) phone, wireless Local Loop (WLL) station, personal Digital Assistant (PDA), handheld device with wireless communication function, computing device or other processing device connected to wireless modem, vehicle-mounted device, wearable device, terminal device in 5G network or terminal device in Public Land Mobile Network (PLMN) for future evolution, etc., which are not limited by the embodiments of the present application.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. The wearable device may be worn directly on the body or may be a portable device integrated into the user's clothing or accessory. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application function, and need to be matched with other equipment such as a smart phone for use, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

In addition, in the embodiment of the present application, the terminal device may also be a terminal device in an internet of things (IoT) system, where IoT is an important component of future information technology development, and a main technical feature of the present application is to connect an article with a network through a communication technology, so as to implement an intelligent network with interconnected human-computer and interconnected objects. The terminal device of the present application may also be an on-board unit, an on-board module, an on-board component, an on-board chip, or an on-board unit built into a vehicle as one or more components or units, and the vehicle may implement the method of the present application through the built-in on-board unit, on-board module, on-board component, on-board chip, or on-board unit. Therefore, the embodiment of the application can be applied to the internet of vehicles, such as vehicle to outside (V2X), long term evolution of vehicle-to-vehicle (LTE-V) for vehicle-to-vehicle (V2V), and the like.

For the understanding of the embodiments of the present application, a detailed description will be given of a communication system suitable for the embodiments of the present application with reference to fig. 1.

Fig. 1 shows a communication system 100 to which an embodiment of the present application is applied. As shown in fig. 1, the communication system 100 may include a network device 110, a network device 120, a terminal device 130, a terminal device 140, a terminal device 150, and a terminal device 160.

The network device 110 supports a first radio access system, and the network device 120 supports a second radio access system, that is, the communication system 100 deploys the first radio access system and the second radio access system simultaneously. Terminal device 130 and terminal device 140 may support access to network device 110, that is, terminal device 130 and terminal device 140 may communicate with network device 110 both on and off. Likewise, terminal device 150 and terminal device 160 may support access to network device 120, that is, terminal device 150 and terminal device 160 may communicate with network device 120 both up and down.

In addition, in the above-described communication system 100, the terminal device 130 and the terminal device 140 may perform sidestream communication based on the first radio access system, and the terminal device 150 and the terminal device 160 may perform sidestream communication based on the second radio access system. The sidelink communication refers to direct wireless communication between terminal devices, that is, the terminal devices may directly perform wireless communication without communicating through a base station. The side-line communication between the terminal device 130 and the terminal device 140, and the side-line communication between the terminal device 150 and the terminal device 160 may be referred to as device-to-device (D2D) communication, and one main application of the D2D communication is vehicle-to-outside (V2X) communication, and V2X may include vehicle-to-vehicle (V2V), vehicle-to-person (V2P), vehicle-to-road side (V2R), vehicle-to-infrastructure (V2I), and vehicle-to-network (V2N).

It should be noted that, for convenience of understanding, only two network devices and four terminal devices are exemplarily shown in fig. 1, and optionally, the communication system 100 may further include other numbers of network devices and other numbers of terminal devices may be included in the coverage area of each network device, which is not limited in this embodiment of the application.

In the communication system 100, optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited to the embodiments of the present invention.

In the communication system 100, the communication between the terminal device 130 and the terminal device 140, and the communication between the terminal device 150 and the terminal device 160 may use the time-frequency resources of the same resource pool for communication in the case of sharing the channel. In the same resource pool, the terminal device 130 and the terminal device 140 use the time-frequency resource in the resource pool for communication, and the terminal device 150 and the terminal device 160 also use the time-frequency resource in the resource pool for communication, so that before the two parties communicate under their respective radio access systems, the resource reservation information of the resource pool used by the two parties in communication needs to be acquired, and the abnormal communication caused by the two parties using the same time-frequency resource in the resource pool when communicating under their respective radio access systems is avoided.

Illustratively, the first radio access system is an LTE system and the second radio access system is an NR system. In the LTE system, resource reservation information of a resource pool used for the terminal device 130 and the terminal device 140 to communicate with each other may be indicated by Sidelink Control Information (SCI) and transmitted on a Physical Sidelink Control Channel (PSCCH). In the NR system, the resource reservation information of the resource pool used by terminal apparatus 150 and terminal apparatus 160 for communication may be carried on the PSCCH for transmission by SCI indication of the first stage in the SCI.

The format of the resource reservation information in the LTE system is different from the format of the resource reservation information in the NR system, and the time-frequency resource occupation mode of the PSCCH in the LTE system is different from the time-frequency resource occupation mode of the PSCCH in the NR system. Therefore, after receiving the PSCCHs of both sides, the terminal device (terminal device 130 or terminal device 140) supporting the LTE system and the terminal device (terminal device 150 or terminal device 160) supporting the NR system may not acquire resource reservation information of both sides because of different time-frequency resource occupation manners of the PSCCHs, and may cause a situation that the terminal devices (the terminal device supporting the LTE system and the terminal device supporting the NR system) use the same time-frequency resource when communicating based on their respective radio access systems, thereby causing abnormal communication.

Therefore, in the case of sharing a channel, the terminal devices supporting different radio access systems may use the same time-frequency resource to perform communication when communicating based on the respective radio access systems because the terminal devices cannot acquire resource reservation information of the other party in the same resource pool, which may affect the data transmission efficiency.

In view of this, the present application provides a resource allocation method and a resource allocation apparatus, which are beneficial to enable devices of different wireless communication technologies (i.e. the above-mentioned wireless access system) to acquire resource reservation information of both parties, improve data transmission efficiency, reduce time delay of resource allocation, and increase reliability of coexistence of different wireless communication technologies.

In order to better understand the embodiment of the present application, first, a time-frequency resource occupation manner of PSCCH in LTE technology and NR technology is introduced.

1. Time-frequency resource occupation mode of PSCCH (Power System control channel) in LTE (Long term evolution) technology

In the LTE technology, a Frequency Division Multiplexing (FDM) mode is used as a time-frequency resource occupation mode of a PSCCH. The method can be divided into adjacent transmission and non-adjacent transmission according to whether PSSCH and PSCCH are adjacent, and the specific transmission mode can be determined according to resource pool configuration.

1) Adjacent transmission

Adjacent transmission means that 2 Physical Resource Blocks (PRBs) of the lowest frequency on each sub-channel in the resource pool can be used for transmitting PSCCH, and the remaining PRBs on each sub-channel can be used for transmitting physical side link shared channel (PSCCH).

It should be understood that the remaining PRBs on each subchannel may also be used for transmission of Automatic Gain Control (AGC), physical lateral feedback channel (PSFCH), demodulation reference signal (DMRS), or GAP (GAP). The embodiments of the present application take the remaining PRBs on each sub-channel to transmit the PSSCH as an example for explanation.

Fig. 2 is a schematic diagram illustrating an occupation manner of time-frequency resources of adjacent transmissions. As shown in fig. 2, the horizontal axis of the coordinate system may represent the time domain of the resource pool, and the vertical axis of the coordinate system may represent the frequency domain of the resource pool. The resource pool includes 4 sub-channels, and each sub-channel may include a plurality of PRBs. The number of PRBs in each sub-channel is the same and is determined by resource pool configuration. It should be understood that the number of subchannels in the resource pool is merely an example, and this is not limited in this embodiment of the application.

In fig. 2, the resources filled with the lattice pattern in each sub-channel are the resources with the frequency width of 2 PRBs, which are the lowest frequency in each sub-channel, and can be used for transmitting PSCCH, and the resources filled with white color in each sub-channel can be used for transmitting PSCCH.

Optionally, the resource pool may configure multiple sub-channels for different terminal devices, and different terminal devices may correspond to the same or different numbers of sub-channels. In the communication process, the terminal device adopting LTE may transmit the PSCCH using a resource with a frequency-domain width of 2 PRBs, where the frequency-domain width of the multiple sub-channels corresponding to the terminal device is the lowest.

2) Non-adjacent transmission

Non-contiguous transmission refers to a consecutive number of PRBs in the resource pool starting from the lowest frequency point being used for transmission of the PSCCH, with the remaining resources of the resource pool being used for transmission of the PSCCH. It should be understood that the resources remaining in the resource pool may also be used for transmitting AGC, PSFCH, DMRS, or GAP. The embodiments of the present application take the PSSCH transmitted by the remaining resources of the resource pool as an example.

Exemplarily, fig. 3 shows a schematic diagram of a time-frequency resource occupation manner of non-adjacent transmission. As shown in fig. 3, the horizontal axis of the coordinate system may represent the time domain of the resource pool, and the vertical axis of the coordinate system may represent the frequency domain of the resource pool. The resource pool includes 4 subchannels. It should be understood that the number of subchannels in the resource pool is merely an example, and this is not limited in this embodiment of the present application.

In fig. 3, the resources of the filled lattice pattern, which may be used for transmitting the PSCCH of one or more terminal devices, are a plurality of PRBs in the resource pool starting from the lowest frequency point. The more the number of the terminal devices, the more the number of the PRBs. For example, the resource pool may provide 3 terminal devices with resource transmission PSCCH, each terminal device needs 2 PRBs in the frequency domain to transmit PSCCH, and the resources filling the lattice pattern may be 3 × 2=6 PRBs from the lowest frequency point in the resource pool. The white-filled resources may be used to transmit the pschs of one or more terminal devices.

2. Time-frequency resource occupation mode of PSCCH (Power System control channel) in NR (noise-and-noise ratio) technology

In the NR technique, a Time Division Multiplexing (TDM) mode is used as a time-frequency resource occupation mode of the PSCCH.

The resource pool may configure the same or different bandwidths for different terminal devices. The resource with the time domain width of 2 or 3 symbols in the subchannel with the lowest frequency corresponding to the bandwidth of the terminal device may be used for transmitting the PSCCH, where the starting position of the time domain width may be the second symbol of each slot. It should be understood that the terminal device may be any device in a car networking application scenario, for example, the terminal device may be a vehicle, a cell phone, or an infrastructure, etc.

Exemplarily, fig. 4 shows a schematic diagram of a time-frequency resource occupation manner. As shown in fig. 4, the horizontal axis of the coordinate system may represent the time domain of the resource pool, and the vertical axis of the coordinate system may represent the frequency domain of the resource pool. The time domain of the resource pool is illustrated by taking one time slot as an example. The resource pool may allocate the same bandwidth for terminal device 1 and terminal device 2, where the bandwidth corresponds to 3 subchannels. It should be understood that the number of terminal devices configured by the resource pool, the width of the bandwidth, and the number of subchannels are merely examples, and this is not limited in this embodiment of the present application.

In fig. 4, the resources filling the lattice pattern are resources with a time domain width of 2 symbols in the sub-channel with the lowest frequency corresponding to the bandwidth of terminal device 1 and terminal device 2, and the resources can be used for transmitting PSCCH. The white-filled resources may be used for transmitting the pscch.

Before describing the resource allocation method and the resource allocation apparatus provided in the embodiments of the present application, the following description is made.

First, in the embodiments shown below, terms and english abbreviations such as resource reservation information and supplementary information are exemplary examples given for convenience of description, and should not limit the present application in any way. This application is not intended to exclude the possibility that other terms may be defined in existing or future protocols to carry out the same or similar functions.

Second, in the embodiments shown below, the first, second and various numbers are only used for convenience of description and are not used to limit the scope of the embodiments of the present application. E.g. to distinguish between different SCIs, to distinguish between different PSCCHs, etc.

Third, in the embodiments shown below, "at least one" means one or more, and "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a alone, A and B together, and B alone, wherein A and B may be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. "at least one of the following" or similar expressions refer to any combination of these items, including any combination of the singular or plural items. For example, at least one (one) of a, b, and c, may represent: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, wherein a, b and c can be single or multiple.

The resource allocation method and the resource allocation apparatus provided in the present application will be described in detail below with reference to the accompanying drawings.

Fig. 5 is a schematic flowchart of a resource allocation method 500 according to an embodiment of the present application. The method 500 may be applied to the communication system 100 shown in fig. 1, a first terminal device may correspond to the terminal device 130 or the terminal device 140 in fig. 1, a second terminal device corresponds to the terminal device 150 or the terminal device 160 in fig. 1, a first radio access system in fig. 1 may be LTE, and a second radio access system may be NR, it should be understood that the embodiments of the present application may also be applied to other communication systems, and the embodiments of the present application are not limited thereto. As shown in fig. 5, the method 500 may include the following steps:

s501, the first terminal device determines a first SCI and a second SCI, where the first SCI is used to indicate resource reservation information, and the second SCI is used to schedule a PSSCH.

Illustratively, the first terminal device determines the first SCI and the second SCI based on NR techniques. The NR may be NR version (R) 16, NR R17, NR R18 or NR R19. It should be understood that embodiments of the present application may be applicable to any version of NR.

The first SCI may be used to indicate resource reservation information, and the format of the first SCI and the resource reservation information may be consistent.

For example, the first SCI is SCI format 1, and the resource reservation information may include at least one of a priority, a resource reservation status, frequency domain resource locations of the outgoing transmission and the retransmission, time intervals of the outgoing transmission and the retransmission, a modulation and coding scheme, a retransmission sequence number, a transmission format, or reservation information.

S502, the first terminal device sends a first SCI and a second SCI, where the first SCI is carried on the first PSCCH and the second SCI is carried on the second PSCCH, and frequency domain resources of the first PSCCH and frequency domain resources of the second PSCCH are not overlapped.

Exemplarily, the frequency domain resources of the first PSCCH and the frequency domain resources of the second PSCCH do not overlap in the same resource pool.

And S503, the second terminal equipment analyzes the first SCI or the second SCI, and determines resource reservation information or schedules PSSCH.

Exemplarily, the second terminal device adopts LTE technology, and may parse the first SCI to determine resource reservation information occupied by the first terminal device. Wherein, the LTE may be LTE R14. Or, the second terminal device may parse the second SCI by using the NR technique, so as to implement PSSCH scheduling.

It should be understood that, in the embodiment of the present application, a scenario in which LTE and NR technologies coexist is taken as an example for description, and the present application may also be applied to any other scenario in which different radio access technologies coexist.

Therefore, the resource allocation method provided in the embodiment of the present application, based on the NR technology, sends two SCIs, and is supported by the PSCCH whose frequency domain resources are not overlapped, which is beneficial for enabling the terminal device adopting the LTE technology to obtain the resource reservation information of the terminal device adopting the NR technology, enabling the terminal device adopting the NR technology to schedule the PSSCH, improving the transmission efficiency of data, reducing the time delay of resource allocation, and increasing the reliability of coexistence of different wireless communication technologies.

As an optional embodiment, the first PSCCH occupies a first frequency-domain resource in the frequency domain, the first frequency-domain resource includes 2 consecutive PRBs, and the first PSCCH occupies a first time-domain resource in the time domain; the second PSCCH occupies a second frequency domain resource in the frequency domain, the second frequency domain resource comprises N continuous PRBs and occupies a second time domain resource in the time domain, wherein N is a positive integer greater than or equal to 1, and the second time domain resource belongs to the first time domain resource.

The first time domain resource is 1 time slot, and each time slot comprises 14 symbols. The first time domain resource includes a second time domain resource.

The value of N may be configured by the network device, and may also be preconfigured or predefined.

Illustratively, N may take on a value of 10, 12, 15, 20, or 25.

Optionally, the first time domain resource may include all symbols except the last symbol in the first time unit, that is, the first time domain resource may occupy the first 13 symbols in 1 slot.

The first time unit may be 1 slot or 1 subframe.

Optionally, the starting position of the second PSCCH in the time domain may be a second symbol of the second time domain resource, and the second time domain resource may include M symbols, where M is a positive integer greater than or equal to 1, and a value of M may be configured by the network device, and may also be preconfigured or predefined.

In the time domain, the starting position of the second PSCCH in the time domain may be a second symbol of the second time domain resource.

M is a positive integer greater than or equal to 1, for example, M can be 2 or 3.

Exemplarily, the second PSCCH may occupy 10 PRBs in the frequency domain and 2 or 3 symbols in the time domain.

The second PSCCH occupies 2 or 3 symbols in each time slot in the time domain, which may be configured by a resource pool, or may be determined according to an information amount carried on the PSCCH.

Exemplarily, the second PSCCH occupies 2 or 3 symbols per slot in the time domain is configured by the resource pool, and then the second PSCCH occupies 2 symbols per slot in the time domain when the resource pool occupies more PRBs; when the resource pool is occupied with fewer PRBs, the second PSCCH occupies 3 symbols per slot in the time domain.

Exemplarily, the second PSCCH occupies 2 or 3 symbols in each time slot in the time domain is determined according to the amount of information carried on the PSCCH, and when the amount of information carried on the PSCCH is large, the second PSCCH occupies 2 symbols in each time slot in the time domain; when the amount of information carried on the PSCCH is small, the second PSCCH occupies 3 symbols in each time slot in the time domain.

Optionally, the starting position of the first frequency domain resource is a starting position of a subchannel with a minimum sequence number in one or more subchannels occupied by the PSCCH corresponding to the first PSCCH, and the ending position of the first PSCCH and the starting position of the PSCCH are adjacent to each other in the frequency domain.

The starting position of the subchannel with the smallest sequence number is the lowest frequency point in the frequency domain, and the first frequency-domain resource may be 2 consecutive PRBs starting from the lowest frequency point.

Wherein the frequency domain width of the sub-channel may be pre-configured by the resource pool. The frequency domain width may be 10, 12, 15, 20, 25, 50, 75, or 100 PRBs.

Optionally, the starting position of the second frequency-domain resource and the ending position of the first frequency-domain resource are adjacent in frequency domain.

Exemplarily, fig. 6 shows a schematic diagram of time-frequency resource occupation. As shown in fig. 6, the horizontal axis of the coordinate system may represent the time domain of the resource pool, and the vertical axis of the coordinate system may represent the frequency domain of the resource pool. The time domain of the resource pool is illustrated by taking one time slot as an example. The resource pool may allocate the same bandwidth to the terminal device 1 and the terminal device 2, where the bandwidth corresponds to 3 sub-channels, and the frequency domain width of each sub-channel may be 12 PRBs. It should be understood that terminal device 1 and the first terminal device may be one terminal device, and terminal device 2 and the second terminal device may be one terminal device. It should also be understood that the number of terminal devices configured for the resource pool, the width of the bandwidth, the number of sub-channels, and the frequency domain width of the sub-channels are merely examples, and this is not limited in this embodiment of the present application. It should also be understood that the resource pool may also allocate different bandwidths for terminal device 1 and terminal device 2.

In fig. 6, the first PSCCH occupies 2 consecutive PRBs in the frequency domain, and the start position of the frequency domain resource is the start position of the subchannel with the smallest sequence number among the 3 subchannels, the end position of the frequency domain resource is the start position of the psch corresponding to the first PSCCH, and in addition, the end position of the frequency domain resource is the start position of the second PSCCH in the frequency domain. Therefore, the resources filling the black dot pattern are the resources of the first PSCCH, the resources filling the lattice pattern are the resources of the second PSCCH, the second PSCCH may occupy 10 PRBs in the frequency domain, 2 symbols corresponding to the 10 PRBs are occupied in each time slot in the time domain, and the time domain start position is the 2 nd symbol in each time slot corresponding to the 10 PRBs.

In addition, white-filled resources may be used for transmitting the pscch.

Alternatively, the second PSCCH may occupy 3 symbols in each slot in the time domain. Exemplarily, fig. 7 shows another schematic diagram of time-frequency resource occupation. As shown in fig. 7, the second PSCCH may occupy 3 symbols in each time slot in the time domain, and the time domain start position is the 2 nd symbol in each time slot corresponding to the 10 PRBs.

Optionally, the end position of the first PSCCH and the start position of the PSCCH corresponding to the first PSCCH are not adjacent to each other in the frequency domain.

Exemplarily, fig. 8 shows a schematic diagram of another time-frequency resource occupation. As shown in fig. 8, the horizontal axis of the coordinate system may represent the time domain of the resource pool, and the vertical axis of the coordinate system may represent the frequency domain of the resource pool. The time domain of the resource pool is illustrated by taking one time slot as an example. The resource pool may allocate the same bandwidth to terminal device 1 and terminal device 2, where the bandwidth corresponds to 3 sub-channels, and the frequency domain width of each sub-channel may be 12 PRBs. It should be understood that terminal device 1 and the first terminal device may be one terminal device and terminal device 2 and the second terminal device may be one terminal device. It should also be understood that the number of terminal devices configured for the resource pool, the width of the bandwidth, the number of sub-channels, and the frequency domain width of the sub-channels are merely examples, and this is not limited in this embodiment of the present application. It should also be understood that the resource pool may also allocate different bandwidths for terminal device 1 and terminal device 2.

In fig. 8, the resources filling the black dot pattern are resources of the first PSCCH, which may include resources of the first PSCCH of terminal apparatus 1 and resources of the first PSCCH of terminal apparatus 2; the resources filling the lattice pattern are resources of the second PSCCH, which may include resources of the second PSCCH of terminal device 1 and resources of the second PSCCH of terminal device 2. The starting position of the resource of the first PSCCH of terminal device 2 is the starting position of the subchannel with the smallest sequence number in the one or more subchannels occupied by the PSCCH corresponding to the first PSCCH, the starting position of the resource of the first PSCCH of terminal device 1 is the ending position of the resource of the first PSCCH of terminal device 2, and the ending position of the resource of the first PSCCH of terminal device 1 is the starting position of the resource of the second PSCCH of terminal device 2. Therefore, the ending position of the first PSCCH and the starting position of the PSCCH corresponding to the first PSCCH are not adjacent in the frequency domain.

Alternatively, the second PSCCH may occupy 3 symbols in each slot in the time domain. Exemplarily, fig. 9 shows another schematic diagram of time-frequency resource occupation. As shown in fig. 9, the second PSCCH may occupy 3 symbols in each slot in the time domain and the time domain start position is the 2 nd symbol in each slot.

Fig. 10 is a schematic flowchart of another resource allocation method 1000 according to an embodiment of the present application. The method 1000 may be applied to the communication system 100 shown in fig. 1, where a first terminal device may correspond to the terminal device 130 or the terminal device 140 in fig. 1, a second terminal device corresponds to the terminal device 150 or the terminal device 160 in fig. 1, the first radio access system in fig. 1 may be LTE, and the second radio access system may be NR, and it should be understood that the embodiment of the present application may also be applied to other communication systems, and the embodiment of the present application is not limited thereto. The method 1000 may include the steps of:

s1001, the first terminal device determines the first SCI and supplementary information of the first SCI, where the first SCI is used to indicate resource reservation information, and the first SCI and the supplementary information are used to schedule the PSSCH.

Illustratively, the first terminal device may determine the first SCI and supplementary information of the first SCI based on NR techniques, the first SCI may be used to indicate resource reservation information, and the first SCI and supplementary information may be used to schedule the PSSCH.

The resource reservation information may include information in table one.

Watch 1

As shown in table one, the resource reservation information may include a priority, a resource reservation condition, frequency domain resource locations of the initial transmission and the retransmission, time intervals of the initial transmission and the retransmission, a modulation and coding scheme, a retransmission sequence number, a transmission format, and first reservation information. Wherein the length of the first reserved information is variable to ensure that the total length of the information is 32.

The first SCI may be in SCI format 1.

The supplemental information may include information in table two.

Watch 2

As shown in table two, the supplemental information may include a frequency domain allocation indication, a time domain allocation indication, a DMRS pattern, a format of the supplemental information, an offset indication of the supplemental information, a DMRS port number, MCS information, a PSFCH overhead indication, and second reservation information. Wherein the length of the second reserved information is preset.

The supplementary information may use SCI indication of the second phase in SCIs, wherein the format of the SCI of the second phase may be implemented in various ways. In one possible implementation, the supplemental information may be generated in SCI format 1-a as SCI format for the second stage and carried in the PSSCH for transmission. In another possible implementation manner, the supplementary information may be generated according to the SCI format 1-a, and combined with the SCI format 2-a or SCI format 2-B to form a new second-stage SCI, which is carried in the PSSCH for transmission.

S1002, a first terminal device transmits a first SCI and supplementary information, where the first SCI is carried on a first PSCCH and the supplementary information is carried on a PSCCH, and a second terminal device receives the first SCI and the supplementary information correspondingly.

S1003, the second terminal equipment analyzes the first SCI or the first SCI and the supplementary information, and determines resource reservation information or scheduling PSSCH.

Exemplarily, the second terminal device adopts the LTE technology, and may parse the first SCI to determine the resource reservation information occupied by the first terminal device adopting the NR technology. Or, the second terminal device may parse the first SCI and the supplemental information and schedule the PSSCH by using the NR technique.

It should be understood that, the embodiment of the present application is described by taking a scenario in which LTE and NR technologies coexist as an example, and may also be applied to another scenario in which any different radio access technologies coexist.

As an optional embodiment, the first PSCCH occupies a first frequency-domain resource in the frequency domain, the first frequency-domain resource includes 2 consecutive PRBs, and the first PSCCH occupies a first time-domain resource in the time domain; the PSCCH occupies time-frequency resources other than the time-frequency resources occupied by the first PSCCH.

The first time domain resource is 1 slot, and each slot includes 14 symbols.

Optionally, the first time domain resource may include all symbols except the last symbol in the first time unit.

The first time unit may be 1 slot or 1 subframe.

Optionally, the end position of the first PSCCH and the start position of the PSCCH are adjacent in the frequency domain.

Exemplarily, fig. 11 shows a schematic diagram of another time-frequency resource occupation. As shown in fig. 11, the horizontal axis of the coordinate system may represent the time domain of the resource pool, and the vertical axis of the coordinate system may represent the frequency domain of the resource pool. The time domain of the resource pool is illustrated by taking one time slot as an example. The resource pool may allocate the same bandwidth to the terminal device 1 and the terminal device 2, where the bandwidth corresponds to 3 sub-channels, and the frequency domain width of each sub-channel may be 12 PRBs. It should be understood that terminal device 1 and the first terminal device may be one terminal device and terminal device 2 and the second terminal device may be one terminal device. It should also be understood that the number of terminal devices configured for the resource pool, the width of the bandwidth, the number of sub-channels, and the frequency domain width of the sub-channels are merely examples, and this is not limited in this embodiment of the present application. It should also be understood that the resource pool may also allocate different bandwidths for terminal device 1 and terminal device 2.

In fig. 11, the first PSCCH occupies 2 consecutive PRBs in the frequency domain, and the start position of the frequency domain resource is the start position of the subchannel with the smallest sequence number among the 3 subchannels, and the end position of the frequency domain resource is the start position of the PSCCH. The resources filling the black dot pattern are the resources of the first PSCCH. The white-filled resource is a resource of the psch, which can carry the above-mentioned supplementary information.

Optionally, the end position of the first PSCCH and the start position of the PSCCH are not adjacent in a frequency domain.

Exemplarily, fig. 12 shows another schematic diagram of time-frequency resource occupation. As shown in fig. 12, the horizontal axis of the coordinate system may represent the time domain of the resource pool, and the vertical axis of the coordinate system may represent the frequency domain of the resource pool. The time domain of the resource pool is illustrated by taking one time slot as an example. The resource pool may allocate the same bandwidth to the terminal device 1 and the terminal device 2, where the bandwidth corresponds to 3 sub-channels, and the frequency domain width of each sub-channel may be 12 PRBs. It should be understood that terminal device 1 and the first terminal device may be one terminal device and terminal device 2 and the second terminal device may be one terminal device. It should also be understood that the number of terminal devices configured for the resource pool, the width of the bandwidth, the number of sub-channels, and the frequency domain width of the sub-channels are merely examples, and this is not limited in this embodiment of the present application. It should also be understood that the resource pool may also allocate different bandwidths for terminal device 1 and terminal device 2.

In fig. 12, the resources filling the black dot pattern are resources of the first PSCCH, which may include resources of the first PSCCH of terminal apparatus 1 and resources of the first PSCCH of terminal apparatus 2; the resources filled with white are resources of the psch, which may include resources of the psch of terminal device 1 and resources of the psch of terminal device 2. The starting position of the resource of the first PSCCH of terminal device 2 is the starting position of the subchannel with the smallest sequence number in the one or more subchannels occupied by the PSCCH corresponding to the first PSCCH, the starting position of the resource of the first PSCCH of terminal device 1 is the ending position of the resource of the first PSCCH of terminal device 2, and the ending position of the resource of the first PSCCH of terminal device 1 is the starting position of the resource of the PSCCH of terminal device 2. The end position of the first PSCCH and the start position of the PSCCH are not adjacent in the frequency domain.

The sequence numbers of the above processes do not mean the sequence of execution, and the execution sequence of each process should be determined by its function and inherent logic, and should not limit the implementation process of the embodiment of the present application.

The resource allocation method according to the embodiment of the present application is described in detail above with reference to fig. 1 to 12, and the resource allocation apparatus according to the embodiment of the present application is described in detail below with reference to fig. 13 and 14.

Fig. 13 illustrates a resource configuration apparatus 1300 according to an embodiment of the present application. The apparatus 1300 comprises: a processing unit 1310 and a transceiver unit 1320.

In one possible implementation manner, the apparatus 1300 may implement the steps or processes performed in association with the first terminal device in the method embodiment 500 above.

Wherein the processing unit 1310 is configured to: and determining a first SCI and a second SCI, wherein the first SCI is used for indicating resource reservation information, and the second SCI is used for scheduling PSSCH. The transceiving unit 1320 is configured to: and sending a first SCI and a second SCI, wherein the first SCI is loaded on the first PSCCH, the second SCI is loaded on the second PSCCH, and frequency domain resources of the first PSCCH and frequency domain resources of the second PSCCH are not overlapped.

Optionally, the first PSCCH occupies a first frequency-domain resource in a frequency domain, the first frequency-domain resource includes 2 consecutive PRBs, and the first PSCCH occupies a first time-domain resource in a time domain; the second PSCCH occupies a second frequency domain resource in the frequency domain, the second frequency domain resource comprises N continuous PRBs and occupies a second time domain resource in the time domain, wherein N is a positive integer greater than or equal to 1, and the second time domain resource belongs to the first time domain resource.

Optionally, the starting position of the first frequency domain resource is the starting position of a subchannel with the smallest sequence number in one or more subchannels occupied by the PSCCH corresponding to the first PSCCH, and the ending position of the first PSCCH and the starting position of the PSCCH are adjacent to each other in the frequency domain.

Optionally, the end position of the first PSCCH and the start position of the PSCCH corresponding to the first PSCCH are not adjacent in the frequency domain.

Optionally, the first time domain resource includes all symbols except the last symbol in the first time unit.

Optionally, the starting position of the second PSCCH in the time domain is a second symbol of the second time domain resource, where the second time domain resource includes M symbols, where M is a positive integer greater than or equal to 1.

In one possible implementation, the apparatus 1300 may implement the steps or the flow corresponding to the steps or the flow executed by the second terminal device in the method embodiment 500 above.

The transceiver 1320 is configured to: receiving a first SCI and a second SCI, wherein the first SCI is used for indicating resource reservation information, the second SCI is used for scheduling PSSCH, the first SCI is loaded on a first PSCCH, the second SCI is loaded on a second PSCCH, and frequency domain resources of the first PSCCH and frequency domain resources of the second PSCCH are not overlapped; the processing unit 1310 is configured to: and analyzing the first SCI or the second SCI, and determining resource reservation information or scheduling PSSCH.

Optionally, the first PSCCH occupies a first frequency-domain resource in a frequency domain, the first frequency-domain resource includes 2 consecutive PRBs, and the first PSCCH occupies a first time-domain resource in a time domain; and the second PSCCH occupies a second frequency domain resource in the frequency domain, the second frequency domain resource comprises continuous N PRBs and occupies a second time domain resource in the time domain, wherein N is a positive integer greater than or equal to 1, and the second time domain resource belongs to the first time domain resource.

In one possible implementation manner, the apparatus 1300 may implement various steps or flows performed in association with the first terminal device in the above method embodiment 1000.

Wherein the processing unit 1310 is configured to: determining a first SCI and supplementary information of the first SCI, wherein the first SCI is used for indicating resource reservation information, and the first SCI and the supplementary information are used for scheduling PSSCH. The transceiving unit 1320 is configured to: and transmitting the first SCI and the supplementary information, wherein the first SCI is carried on the first PSCCH, and the supplementary information is carried on the PSSCH.

Optionally, the first PSCCH occupies a first frequency-domain resource in a frequency domain, the first frequency-domain resource includes 2 consecutive PRBs, and the first PSCCH occupies a first time-domain resource in a time domain; the PSSCH occupies time-frequency resources other than the time-frequency resources occupied by the first PSCCH.

Optionally, the end position of the first PSCCH and the start position of the PSCCH are not adjacent in the frequency domain.

In one possible implementation manner, the apparatus 1300 may implement various steps or flows corresponding to those executed by the second terminal device in the above method embodiment 1000.

Wherein the transceiver 1320 is configured to: and receiving a first SCI and supplementary information of the first SCI, wherein the first SCI is used for indicating resource reservation information, the first SCI and the supplementary information are used for scheduling PSSCH, the first SCI is loaded on the first PSCCH, and the supplementary information is loaded on the PSSCH. The processing unit 1310 is configured to: and analyzing the first SCI or the first SCI and the supplementary information to determine resource reservation information or scheduling PSSCH.

The apparatus 1300 here is embodied in the form of a functional unit. The term "unit" herein may refer to an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (e.g., a shared, dedicated, or group processor) and memory that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable components that support the described functionality. In an optional example, as will be understood by those skilled in the art, the apparatus 1300 may be specifically the first terminal device or the second terminal device in the foregoing embodiment, or the functions of the first terminal device or the second terminal device in the foregoing embodiment may be integrated in the apparatus, and the apparatus may be configured to execute each process and/or step corresponding to the first terminal device or the second terminal device in the foregoing method embodiment, and details are not described herein again to avoid repetition.

The apparatus 1300 has a function of implementing corresponding steps executed by the first terminal device or the second terminal device in the above embodiments; the above functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions. For example, the transceiver 1320 may include a transmitting unit and a receiving unit, where the transmitting unit may be configured to implement each step and/or flow corresponding to the transceiver for performing a transmitting action, and the receiving unit may be configured to implement each step and/or flow corresponding to the transceiver for performing a receiving action. The transmitting unit may be replaced by a transmitter, and the receiving unit may be replaced by a receiver, which performs transceiving operations and related processing operations in the respective method embodiments, respectively. For another example, the transceiving unit 1320 may be replaced by a communication interface to perform transceiving operations in various method embodiments. In the embodiment of the present application, the communication interface may be a circuit, a unit, a bus interface, a transceiver, or the like that can implement a communication function. It is to be understood that the processing unit 1310 in the above embodiments may be implemented by a processor or processor-related circuitry, and the transceiving unit 1320 may be implemented by a transceiver or transceiver-related circuitry or interface circuitry.

Optionally, in the possibly designed apparatus, a storage unit may further be included, where the storage unit is configured to store a computer program, and the processing unit 1310 may call and execute the computer program from the storage unit, so that the apparatus 1300 performs the method of the first terminal device or the second terminal device in the foregoing method embodiment, which is not limited in this embodiment of the present application.

Further, the units in the above embodiments may also be referred to as units or circuits or components, and the like. In the embodiment of the present application, the apparatus of fig. 13 may also be a chip or a chip system, for example: system on chip (SoC). Correspondingly, the transceiver unit may be a transceiver circuit of the chip, and is not limited herein.

Fig. 14 illustrates another resource configuration apparatus 1400 provided in an embodiment of the present application. The apparatus 1400 includes a processor 1410 and a transceiver 1420. Wherein the processor 1410 and the transceiver 1420 communicate with each other through the internal connection path, and the processor 1410 is configured to execute instructions to control the transceiver 1420 to transmit and/or receive signals.

Optionally, the apparatus 1400 may further comprise a memory 1430, wherein the memory 1430 is in communication with the processor 1410 and the transceiver 1420 via the internal connection path. The memory 1430 is configured to store instructions, and the processor 1410 may execute the instructions stored in the memory 1430. The apparatus 1400 is configured to implement each process and step corresponding to the first terminal device or the second terminal device in the foregoing method embodiment.

The apparatus 1400 may be embodied as the first terminal device or the second terminal device in the foregoing embodiment, and may also be a chip or a chip system. Correspondingly, the transceiver 1420 may be a transceiver circuit of the chip, which is not limited herein. Specifically, the apparatus 1400 may be configured to perform each step and/or flow corresponding to the first terminal device or the second terminal device in the foregoing method embodiment. Alternatively, the memory 1430 may include both read-only memory and random-access memory and provide instructions and data to the processor. The portion of memory may also include non-volatile random access memory. For example, the memory may also store device type information. The processor 1410 may be configured to execute instructions stored in the memory, and when the processor 1410 executes the instructions stored in the memory, the processor 1410 is configured to perform the various steps and/or flows of the above-described method embodiments corresponding to the first terminal device or the second terminal device.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software elements in a processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and combines hardware thereof to complete the steps of the method. To avoid repetition, it is not described in detail here.

It should be noted that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor described above may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The processor in the embodiments of the present application may implement or perform the methods, steps, and logic blocks disclosed in the embodiments of the present application. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software elements in the decoding processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, etc. as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

According to the method provided by the embodiment of the present application, the present application further provides a computer program product, which includes: computer program code which, when run on a computer, causes the computer to perform the method shown in the above embodiments.

According to the method provided by the embodiment of the present application, the present application also provides a computer-readable storage medium having program code, which when run on a computer, causes the computer to execute the method shown in the above embodiment.

According to the method provided by the embodiment of the present application, the present application further provides a chip, where the chip includes a processor, and is configured to read an instruction stored in a memory, and when the processor executes the instruction, the chip is enabled to implement the method shown in the foregoing embodiment.

The read storage medium has program code which, when run on a computer, causes the computer to perform the method shown in the above-described embodiments.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, a division of a unit is only a logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one position, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method for resource allocation, comprising:

determining first Sidelink Control Information (SCI) and second SCI, wherein the first SCI is used for indicating resource reservation information, and the second SCI is used for scheduling a Physical Sidelink Shared Channel (PSSCH);

and sending the first SCI and the second SCI, wherein the first SCI is carried on a first Physical Sidelink Control Channel (PSCCH), the second SCI is carried on a second PSCCH, and frequency domain resources of the first PSCCH and frequency domain resources of the second PSCCH are not overlapped.

2. The method of claim 1, wherein the first PSCCH occupies first frequency-domain resources in the frequency domain, wherein the first frequency-domain resources comprise 2 consecutive physical resource blocks, PRBs, and wherein the first PSCCH occupies first time-domain resources in the time domain;

the second PSCCH occupies a second frequency domain resource in a frequency domain, where the second frequency domain resource includes N consecutive PRBs and occupies a second time domain resource in a time domain, where N is a positive integer greater than or equal to 1, and the second time domain resource belongs to the first time domain resource.

3. The method of claim 2, wherein the start position of the first frequency domain resource is a start position of a subchannel with a smallest sequence number in the one or more subchannels occupied by the PSCCH corresponding to the first PSCCH, and the end position of the first PSCCH and the start position of the PSCCH are adjacent to each other in a frequency domain.

4. The method of claim 2, wherein the end position of the first PSCCH and the start position of the PSCCH corresponding to the first PSCCH are not adjacent in frequency domain.

5. The method of any of claims 2 to 4, wherein the starting position of the second frequency-domain resource and the ending position of the first frequency-domain resource are adjacent in frequency domain.

6. The method according to any of claims 2 to 4, wherein the first time domain resource comprises all symbols except the last symbol in the first time unit.

7. The method according to any of claims 2 to 4, wherein the starting position of the second PSCCH in the time domain is a second symbol of the second time domain resource, and the second time domain resource comprises M symbols, where M is a positive integer greater than or equal to 1.

8. A method for resource allocation, comprising:

receiving first sidelink control information SCI and second SCI, wherein the first SCI is used for indicating resource reservation information, the second SCI is used for scheduling a physical sidelink shared channel PSSCH, the first SCI is carried on a first physical sidelink control channel PSCCH, the second SCI is carried on a second PSCCH, and frequency domain resources of the first PSCCH and frequency domain resources of the second PSCCH are not overlapped;

and analyzing the first SCI or the second SCI, and determining the resource reservation information or scheduling the PSSCH.

9. A method for resource allocation, comprising:

determining first Sidelink Control Information (SCI) and supplementary information of the first SCI, wherein the first SCI is used for indicating resource reservation information, and the first SCI and the supplementary information are used for scheduling a Physical Sidelink Shared Channel (PSSCH);

and sending the first SCI and the supplementary information, wherein the first SCI is carried on a first physical sidelink control channel PSCCH, and the supplementary information is carried on the PSSCH.

10. The method of claim 9, wherein the first PSCCH occupies a first frequency-domain resource in the frequency domain, wherein the first frequency-domain resource comprises 2 consecutive physical resource blocks, PRBs, and wherein the first PSCCH occupies a first time-domain resource in the time domain;

the PSSCH occupies time-frequency resources except the time-frequency resources occupied by the first PSCCH.

11. The method of claim 9 or 10, wherein the end position of the first PSCCH and the start position of the PSCCH are adjacent in the frequency domain.

12. The method of claim 9 or 10, wherein the end position of the first PSCCH and the start position of the PSCCH are not adjacent in the frequency domain.

13. The method according to any of claims 10 to 12, wherein the first time domain resource comprises all symbols except the last symbol in the first time unit.

14. A method for resource allocation, comprising:

receiving first Sidelink Control Information (SCI) and supplementary information of the first SCI, wherein the first SCI is used for indicating resource reservation information, the first SCI and the supplementary information are used for scheduling a Physical Sidelink Shared Channel (PSSCH), the first SCI is carried on a first Physical Sidelink Control Channel (PSCCH), and the supplementary information is carried on the PSSCH;

and analyzing the first SCI or the first SCI and the supplementary information, and determining the resource reservation information or scheduling the PSSCH.

15. A resource allocation apparatus, comprising:

a processing unit, configured to determine first sidelink control information SCI and a second SCI, where the first SCI is used to indicate resource reservation information, and the second SCI is used to schedule a physical sidelink shared channel psch;

a transceiving unit, configured to send the first SCI and the second SCI, where the first SCI is carried on a first physical sidelink control channel PSCCH, the second SCI is carried on a second PSCCH, and frequency domain resources of the first PSCCH and frequency domain resources of the second PSCCH are not overlapped.

16. The apparatus of claim 15, wherein the first PSCCH occupies a first frequency-domain resource in the frequency domain, wherein the first frequency-domain resource comprises 2 consecutive physical resource blocks, PRBs, and wherein the first PSCCH occupies a first time-domain resource in the time domain;

and the second PSCCH occupies a second frequency domain resource on the frequency domain, the second frequency domain resource comprises N continuous PRBs, and occupies a second time domain resource on the time domain, wherein N is a positive integer greater than or equal to 1, and the second time domain resource belongs to the first time domain resource.

17. The apparatus of claim 16, wherein the start position of the first frequency domain resource is a start position of a subchannel with a smallest sequence number in the one or more subchannels occupied by the PSCCH corresponding to the first PSCCH, and the end position of the first PSCCH and the start position of the PSCCH are adjacent to each other in a frequency domain.

18. The apparatus of claim 16, wherein the end position of the first PSCCH and the start position of the PSCCH corresponding to the first PSCCH are not adjacent in frequency domain.

19. The apparatus according to any of claims 16 to 18, wherein a starting position of the second frequency domain resource and an ending position of the first frequency domain resource are adjacent in frequency domain.

20. The apparatus according to any of claims 16-18, wherein the first time domain resource comprises all symbols except the last symbol in the first time unit.

21. The apparatus according to any of claims 16 to 18, wherein the starting position of the second PSCCH in the time domain is a second symbol of the second time domain resource, and the second time domain resource comprises M symbols, where M is a positive integer greater than or equal to 1.

22. A resource configuration apparatus, comprising:

a transceiver unit, configured to receive first sidelink control information SCI and second SCI, where the first SCI is used to indicate resource reservation information, the second SCI is used to schedule a physical sidelink shared channel PSCCH, the first SCI is carried on a first physical sidelink control channel PSCCH, the second SCI is carried on a second PSCCH, and frequency domain resources of the first PSCCH and frequency domain resources of the second PSCCH are not overlapped;

and the processing unit is used for analyzing the first SCI or the second SCI and determining the resource reservation information or scheduling the PSSCH.

23. A resource allocation apparatus, comprising:

a processing unit, configured to determine first sidelink control information SCI and supplementary information of the first SCI, where the first SCI is used to indicate resource reservation information, and the first SCI and the supplementary information are used to schedule a physical sidelink shared channel psch;

a transceiver unit, configured to send the first SCI and the supplemental information, where the first SCI is carried on a first physical sidelink control channel PSCCH, and the supplemental information is carried on the PSCCH.

24. The apparatus of claim 23, wherein the first PSCCH occupies a first frequency domain resource in the frequency domain, wherein the first frequency domain resource comprises 2 consecutive physical resource blocks, PRBs, and wherein the first PSCCH occupies a first time domain resource in the time domain;

the PSSCH occupies a time-frequency resource except the time-frequency resource occupied by the first PSCCH.

25. The apparatus of claim 23 or 24, wherein the end position of the first PSCCH and the start position of the PSCCH are adjacent in the frequency domain.

26. The apparatus of claim 23 or 24, wherein the end position of the first PSCCH and the start position of the PSCCH are not adjacent in the frequency domain.

27. The apparatus of any of claims 24 to 26, wherein the first time domain resource comprises all symbols except a last symbol in a first time unit.

28. A resource configuration apparatus, comprising:

a transceiver unit, configured to receive first sidelink control information SCI and supplementary information of the first SCI, where the first SCI is used to indicate resource reservation information, the first SCI and the supplementary information are used to schedule a physical sidelink shared channel PSCCH, the first SCI is carried on a first physical sidelink control channel PSCCH, and the supplementary information is carried on the PSCCH;

and the processing unit is used for analyzing the first SCI or the first SCI and the supplementary information, and determining the resource reservation information or scheduling the PSSCH.

29. A resource configuration apparatus, comprising: a processor coupled with a memory for storing a computer program that, when invoked by the processor, causes the apparatus to perform the method of any of claims 1 to 14.

30. A computer-readable storage medium, having stored thereon a computer program which, when run on a computer, causes the method of any of claims 1-14 to be performed.