CN113727311A - Device communication method and device - Google Patents

Abstract

The application provides a device communication method and a device, wherein a relay device determines a first resource from a candidate resource set, transmits first control information at the first resource, and transmits second control information at a second resource, and the relay device indicates a scheduled remote device and location information of the second resource in the first control information, so that the remote device can receive the second control information at the corresponding second resource, thereby reducing power consumption of the remote device.

Description

Device communication method and device

technical field

The present application relates to the field of communications, and in particular, to a device communication method and apparatus.

Background technique

Device to Device (Device to Device, D2D) technology is a technology used for direct communication between devices, and data and corresponding control information can be directly sent between two devices without going through a base station. A relay scenario is one of the application scenarios, that is, data and control information between a base station and a remote device (Remote UE) are relayed through a relay device (Relay UE).

In a relay scenario, the relay device can schedule the resources of the remote device. In the prior art, the resource pools of the Physical Sidelink Control Channel (PSCCH) and the Physical Sidelink Shared Channel (PSSCH) can be divided by time division multiplexing and configured periodically. Contains a PSCCH and a PSSCH. The PSCCH and PSSCH resource pools can also be divided by frequency division multiplexing, that is, within the available D2D available frequency band, a part of the frequency resources are used as the PSCCH resource pool, and the remaining frequency resources are used as the PSSCH resource pool; The transmission may be performed using PSCCH resources. PSCCH and PSSCH are used to transmit control information and data, respectively. According to the prior art, the relay device can randomly select resources in the PSCCH and PSSCH, transmit sidelink control information (SCI) through the selected PSCCH resources, transmit data (Data) through the selected PSSCH, and the remote device transmits the sidelink control information (SCI) through the selected PSCCH resources. The method of detection attempts to demodulate the bypass control information in the PSCCH to determine whether it is scheduled and to obtain its scheduling information.

However, in the prior art, the remote device needs to blindly detect the SCI in the PSCCH resource pool, and the blind detection consumes a lot of power.

SUMMARY OF THE INVENTION

The present application provides a device communication method and apparatus to reduce power consumption of a remote device.

A first aspect of the present application provides a device communication method, including: a relay device determines a first resource from a candidate resource set, the relay device sends first control information on the first resource, and the first control information is used to indicate a relayed device Information of the scheduled remote device and location information of the second resource; the relay device sends the second control information of the remote device scheduled by the relay device on the second resource according to the location information of the second resource. The remote device can determine whether it is scheduled through the first control information received at the first resource, and if it is scheduled, the location information of its corresponding second resource, and receive its corresponding second resource at its corresponding second resource. Control information and obtain its scheduling information, which is equivalent to blind detection of the first control information by the remote device. After detecting the first control information, the location information of the second resource used to transmit the second control information can be directly determined, that is, no blind detection is required. The resources between the first resource and the second resource, thereby narrowing the blind detection range of the remote device and reducing the power consumption of the remote device.

In a possible design, before the relay device determines the first resource from the candidate resource set, the method further includes: the relay device obtains configuration information of a resource pool, where the resource pool includes the candidate resource set.

In a possible design, acquiring the configuration information of the resource pool by the relay device includes: the relay device receives the configuration information of the resource pool sent by the base station.

In one possible design, the candidate resource set is any of the following:

One or more resources corresponding to the position of at least one RB in the middle of the resource pool; one or more resources corresponding to the position of the frequency resource where the synchronization signal is located and the first preset time distance from the synchronization signal; Or the system frame No. 0 is offset by one or more resources corresponding to the position where the second preset time distance occurs at a preset period.

In a possible design, before the relay device determines the first resource from the candidate resource set, the method further includes: the relay device sends first indication information to the remote device, where the first indication information is used to indicate location information of the candidate resource set.

In a possible design, the location information of the candidate resource set includes the location information of the initial resource and the period of the candidate resource.

In a possible design, sending the first indication information to the remote device by the relay device includes: the relay device sends the first indication information to the remote device through the physical bypass broadcast channel PSBCH; or, the relay device sends the first indication information to the remote device through a discovery message; The remote device sends the first indication information; or, the relay device sends the first indication message to the remote device through a radio resource control RRC message.

In a possible design, before the relay device determines the first resource from the candidate resource set, the method further includes: the relay device determines the candidate resource set from a preconfigured resource pool.

In a possible design, before the relay device sends the second control information on the second resource, the relay device further includes: the relay device scrambles the second control information by using the identification information of the remote device.

In a possible design, the second control information further includes second indication information, where the second indication information is used to indicate that the second control information is control information for scheduling transmission resources of the relay device; or, the second control information is Control information for scheduling transmission resources for remote devices.

In a possible design, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the bypass control information SCI corresponding to the first control information; or, the remote device scheduled by the relay device The information of the device and the location information of the second resource are carried in the MAC CE of the data corresponding to the first control information; or, the information of the remote device scheduled by the relay device is carried in the bypass control information corresponding to the first control information In the SCI, the location information of the second resource is carried in the MAC CE of the data corresponding to the first control information.

In a possible design, the demodulation reference signal DMRS, the preamble sequence or the cyclic redundancy check CRC used by the bypass control information SCI corresponding to the first control information and the second control information are different.

In a second aspect, the present application provides a device communication method, including:

The remote device receives the first control information at the first resource, where the first control information is used to indicate the information of the remote device scheduled by the relay device; the second resource is determined according to the information of the remote device scheduled by the relay device;

The remote device receives the second control information at the second resource. The remote device receives its second control information at the second resource, and the second resource may be pre-configured or carried in the first control information. After the remote device determines that it is scheduled, it receives its second control information at the second resource. information, which reduces the blind detection range of the remote device and reduces the power consumption of the remote device.

In a possible design, the first control information is further used to indicate location information of the second resource;

The remote device determines the second resource according to the information of the remote device scheduled by the relay device, including:

The remote device determines the second resource according to the location information of the second resource.

In a possible design, the remote device determines the second resource according to the information of the remote device scheduled by the relay device, including: if the information of the remote device scheduled by the relay device includes the identifier of the remote device, then the remote device The second resource is determined according to a preset rule.

In a possible design, the remote device determining the second resource according to a preset rule includes: the remote device determining the second resource according to preconfigured location information of the second resource.

In a possible design, before the remote device determines the second resource according to the preconfigured location information of the second resource, the method further includes: the remote device receives the preconfigured location information of the second resource sent by the relay device.

In a possible design, the remote device receiving the first control information on the first resource includes: the remote device detects the first control information on a candidate resource corresponding to a candidate resource set, where the candidate resource set includes the first resource.

In a possible design, before the remote device detects the first control information on the candidate resource corresponding to the candidate resource set, the remote device further includes: the remote device receives the first indication information sent by the relay device, where the first indication information is used to indicate the candidate resource set location information.

In a possible design, the location information of the candidate resource set includes the location information of the initial resource and the period of the candidate resource.

In a possible design, the remote device receives the first indication information sent by the relay device, including:

The remote device receives the first indication information sent by the relay device through the physical bypass broadcast channel PSBCH; or, the remote device receives the first indication information sent by the relay device through a discovery message; or,

The remote device receives the first indication information sent by the relay device through a radio resource control RRC message.

In a possible design, the remote device receiving the second control information at the second resource includes: the remote device descrambles the second control information by using the identification information of the remote device.

In a possible design, the second control information further includes second indication information;

The method further includes: the remote device determines, according to the second indication information, that the second control information is control information for scheduling transmission resources of the relay device; or, the second control information is control information for scheduling transmission resources of the remote device.

In a third aspect, the present application provides a device communication apparatus, the device communication apparatus is deployed in a relay device, and includes: a processing module configured to determine a first resource from a candidate resource set, where the first resource is used to transmit first control information; a sending module, configured to send the first control information on the first resource, where the first control information is used to indicate the information of the remote device scheduled by the relay device and the location information of the second resource; the sending module is further configured to send the first control information according to the second resource the location information, and send the second control information of the remote device scheduled by the relay device on the second resource.

In a possible design, the processing module is further configured to obtain configuration information of the resource pool, where the resource pool contains candidate resource sets.

In a possible design, the processing module is specifically configured to receive configuration information of the resource pool sent by the base station.

In one possible design, the candidate resource set is any of the following:

One or more resources corresponding to the position of at least one RB in the middle of the resource pool;

One or more resources corresponding to the position of the frequency resource where the synchronization signal is located and the first preset time distance from the synchronization signal;

One or more resources corresponding to a position that is offset from the direct frame No. 0 or the system frame No. 0 by a second preset time distance and occurs at a preset period.

In a possible design, the sending module is further configured to send first indication information to the remote device, where the first indication information is used to indicate the location information of the candidate resource set.

In a possible design, the location information of the candidate resource set includes the location information of the initial resource and the period of the candidate resource.

In a possible design, the sending module is specifically configured to send the first indication information to the remote device through the physical bypass broadcast channel PSBCH; or, send the first indication information to the remote device through a discovery message; or, through the radio resource control RRC The message sends a first indication message to the remote device.

In one possible design, the processing module is further configured to determine a candidate resource set from a preconfigured resource pool.

In a possible design, the processing module is further configured to scramble the second control information by using the identification information of the remote device.

In a possible design, the second control information further includes second indication information, where the second indication information is used to indicate that the second control information is control information for scheduling transmission resources of the relay device; or, the second control information is Control information for scheduling transmission resources for remote devices.

In a possible design, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the bypass control information SCI corresponding to the first control information;

Or, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the MAC CE of the data corresponding to the first control information;

Alternatively, the information of the remote device scheduled by the relay device is carried in the bypass control information SCI corresponding to the first control information, and the location information of the second resource is carried in the MAC CE of the data corresponding to the first control information.

In a possible design, the demodulation reference signal DMRS, the preamble sequence or the cyclic redundancy check CRC used by the bypass control information SCI corresponding to the first control information and the second control information are different.

In a fourth aspect, the present application provides a device communication apparatus, the device communication apparatus is deployed on a remote device, and includes: a receiving module configured to receive first control information at a first resource, where the first control information is used to indicate scheduling by a relay device The information of the remote equipment; the processing module is used for determining the second resource according to the information of the remote equipment scheduled by the relay equipment; the receiving module is further used for receiving the second control information on the second resource.

In a possible design, the first control information is further used to indicate location information of the second resource;

The processing module is specifically configured to determine the second resource according to the location information of the second resource.

In a possible design, the processing module is specifically configured to determine the second resource according to a preset rule if the information of the remote device scheduled by the relay device includes the identifier of the remote device.

In a possible design, the processing module is specifically configured to determine the second resource according to the preconfigured location information of the second resource.

In a possible design, the receiving module is further configured to receive the location information of the preconfigured second resource sent by the relay device.

In a possible design, the receiving module is specifically configured to detect the first control information in the candidate resource corresponding to the candidate resource set, and the candidate resource set includes the first resource.

In a possible design, the receiving module is further configured to receive the first indication information sent by the relay device, where the indication information is used to indicate the location information of the candidate resource set.

In a possible design, the location information of the candidate resource set includes the location information of the initial resource and the period of the candidate resource.

In a possible design, the receiving module is specifically configured to receive the first indication information sent by the relay device through the physical bypass broadcast channel PSBCH; or, receive the first indication information sent by the relay device through a discovery message; The radio resource control RRC message receives the first indication information sent by the relay device.

In a possible design, the processing module is further configured to descramble the second control information by using the identification information of the remote device.

In a possible design, the second control information further includes second indication information;

The processing module is further configured to determine, according to the second indication information, that the second control information is control information for scheduling transmission resources of the relay device; or, the second control information is control information for scheduling transmission resources of remote devices.

In a fifth aspect, the present application provides a device communication apparatus, which is deployed in a relay device and includes: a processor configured to determine a first resource from a candidate resource set, where the first resource is used to transmit first control information; a transmitter, configured to send the first control information on the first resource, where the first control information is used to indicate the information of the remote device scheduled by the relay device and the location information of the second resource; the transmitter is further configured to send the first control information according to the second resource the location information, and send the second control information of the remote device scheduled by the relay device on the second resource.

In a possible design, the processor is further configured to obtain configuration information of the resource pool, where the resource pool contains candidate resource sets.

In a possible design, the processor is specifically configured to receive configuration information of the resource pool sent by the base station.

In one possible design, the candidate resource set is any of the following:

One or more resources corresponding to the position of at least one RB in the middle of the resource pool;

One or more resources corresponding to the position of the frequency resource where the synchronization signal is located and the first preset time distance from the synchronization signal;

One or more resources corresponding to a position that is offset from the direct frame No. 0 or the system frame No. 0 by a second preset time distance and occurs at a preset period.

In a possible design, the transmitter is further configured to send first indication information to the remote device, where the first indication information is used to indicate the location information of the candidate resource set.

In a possible design, the location information of the candidate resource set includes the location information of the initial resource and the period of the candidate resource.

In a possible design, the transmitter is specifically configured to send the first indication information to the remote device through the physical bypass broadcast channel PSBCH; or, send the first indication information to the remote device through a discovery message; or, through the radio resource control RRC The message sends a first indication message to the remote device.

In one possible design, the processor is further configured to determine candidate resource sets from a preconfigured resource pool.

In a possible design, the processor is further configured to scramble the second control information by using the identification information of the remote device.

In a possible design, the second control information further includes second indication information, where the second indication information is used to indicate that the second control information is control information for scheduling transmission resources of the relay device; or, the second control information is Control information for scheduling transmission resources for remote devices.

In a possible design, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the bypass control information SCI corresponding to the first control information;

Or, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the MAC CE of the data corresponding to the first control information;

Alternatively, the information of the remote device scheduled by the relay device is carried in the bypass control information SCI corresponding to the first control information, and the location information of the second resource is carried in the MAC CE of the data corresponding to the first control information.

In a possible design, the demodulation reference signal DMRS, the preamble sequence or the cyclic redundancy check CRC used by the bypass control information SCI corresponding to the first control information and the second control information are different.

In a sixth aspect, the present application provides a device communication apparatus, the device communication apparatus is deployed on a remote device, and includes: a receiver configured to receive first control information at a first resource, where the first control information is used to indicate scheduling by a relay device information of the remote device; the processor is configured to determine the second resource according to the information of the remote device scheduled by the relay device; the receiver is further configured to receive the second control information at the second resource.

In a possible design, the first control information is further used to indicate location information of the second resource;

The processor is specifically configured to determine the second resource according to the location information of the second resource.

In a possible design, the processor is specifically configured to determine the second resource according to a preset rule if the information of the remote device scheduled by the relay device includes the identifier of the remote device.

In a possible design, the processor is specifically configured to determine the second resource according to preconfigured location information of the second resource.

In a possible design, the receiver is further configured to receive the location information of the preconfigured second resource sent by the relay device.

In a possible design, the receiver is specifically configured to detect the first control information in the candidate resource corresponding to the candidate resource set, and the candidate resource set includes the first resource.

In a possible design, the receiver is further configured to receive the first indication information sent by the relay device, where the indication information is used to indicate the location information of the candidate resource set.

In a possible design, the location information of the candidate resource set includes the location information of the initial resource and the period of the candidate resource.

In a possible design, the receiver is specifically configured to receive the first indication information sent by the relay device through the physical bypass broadcast channel PSBCH; or, receive the first indication information sent by the relay device through a discovery message; or, through The radio resource control RRC message receives the first indication information sent by the relay device.

In a possible design, the processor is further configured to descramble the second control information by using the identification information of the remote device.

In a possible design, the second control information further includes second indication information;

The processor is further configured to determine, according to the second indication information, that the second control information is control information for scheduling transmission resources of the relay device; or, the second control information is control information for scheduling transmission resources of remote devices.

A seventh aspect of the present application provides a computer-readable medium, where the computer-readable medium includes computer-executable instructions, where the computer-executable instructions are used to cause a relay device to perform the method provided in the first aspect of the present application.

An eighth aspect of the present application provides a computer-readable medium, where the computer-readable medium includes computer-executable instructions, and the computer-executable instructions are used to cause a remote device to perform the method provided in the second aspect of the present application.

A ninth aspect of the present application provides a system on a chip, the system can be applied to a relay device, the system on a chip includes: at least one communication interface, at least one processor, at least one memory, the communication interface, the memory and the The processors are interconnected through a bus, and the processor invokes the instructions stored in the memory to execute the operation of the relay device in the method provided in the first aspect of the present application.

A tenth aspect of the present application provides a system on a chip, the system can be applied to a remote device, the system on a chip includes: at least one communication interface, at least one processor, at least one memory, the communication interface, memory and processing The processors are interconnected through a bus, and the processor invokes the instructions stored in the memory to execute the operation of the remote device in the method provided in the second aspect of the present application.

Description of drawings

1 is a schematic diagram of an application scenario of the application;

FIG. 2 is a schematic flowchart of Embodiment 1 of a device communication method of the present application;

3 is a schematic diagram of the positional relationship between the first control information and the second control information of the present application;

4 is a schematic diagram of a format of the first control information of the application;

5 is a schematic diagram of another format of the first control information of the application;

FIG. 6 is a schematic diagram of the relay device scheduling a remote device through the first control information and the second control information according to the present application

FIG. 7 is a schematic flowchart of Embodiment 2 of the device communication method of the present application;

FIG. 8 is a schematic flowchart of Embodiment 3 of the device communication method of the present application;

FIG. 9 is a schematic flowchart of Embodiment 4 of the device communication method of the present application;

10 is a schematic structural diagram of a device communication device provided by the application;

11 is a schematic structural diagram of another device communication apparatus provided by the application;

12 is a schematic structural diagram of still another device communication apparatus provided by the application;

FIG. 13 is a schematic structural diagram of another device communication apparatus provided by the present application.

Detailed ways

FIG. 1 is a schematic diagram of an application scenario of the present application. As shown in FIG. 1 , the application scenario of the present application includes: a base station, a relay device and a remote device, and the relay device transfers data and control information between the base station and the remote device. The base station may be an evolved base station (evolved NodeB, eNB for short), an access point (AP), or a relay station in a Long Term Evolution (Long Term Evolution, LTE for short) system, or a fifth-generation mobile communication ( 5Generation, 5G) system in the base station (such as gNB or transmission point (Transmission Point, TRP)) and so on. Both the relay device and the remote device may be a type of user equipment. User equipment, which may be referred to as terminal equipment, mobile station, terminal or mobile terminal, etc., the user equipment can communicate with one or more network equipments via a radio access network (Radio Access Network, RAN). The user equipment may be a mobile phone (or called a "cellular" phone) or a computer with a mobile terminal, etc. For example, the user equipment may also be a portable, pocket-sized, hand-held, computer-built or vehicle-mounted mobile device. User equipment can also be IoT devices, such as watch terminals, wearable devices, logistics tracking, or IoT devices such as satellite TV. In different scenarios, the relay device and the remote device may be different; for example, in the Internet of Vehicles scenario, the relay device can be a roadside unit (Road Side Unit, RSU), etc., and the remote device can be an on-board unit (On board Unit, RSU), etc. OBU), in-vehicle equipment (Vehicle UE, V-UE) or pedestrian handheld terminal (Pedestrian UE, P-UE), etc.; in the IoT scenario, the relay device can be a mobile phone, a watch with communication capabilities, an IoT device ( Internet of Things device, IoT device) or a computer with a mobile terminal, etc., the remote device can be a wearable device (such as a smart bracelet or a smart watch), an IoT device, etc. Figure 1 shows the Internet of Things scenario as an example. , this application does not limit.

The relay device of the present application schedules remote devices through two-level control information, wherein the first control information (ie, the first-level control information) is used to indicate which remote devices are scheduled, and the remote device determines whether it is being relayed according to the first control information Device scheduling. If it is scheduled by the relay device, the corresponding second control information (ie, second-level control information) is obtained at the specified location. The second control information carries the scheduling information of the remote device, so that the remote device obtains its scheduling information. . Wherein, the remote device can determine the specified location according to the location information of the second control information corresponding to the scheduled remote device carried in the first control information; the remote device can also determine whether it is scheduled by the relay device according to the first control information, If it is scheduled by the relay device, the designated location is determined according to the preset rules. Since the location information of the second control information corresponding to the remote device can be determined through the first control information, the blind detection range of the remote device is reduced and the remote The power consumption of the device.

Concepts that may be involved in the following embodiments of this application:

Resource block (resource block, RB) refers to the bandwidth corresponding to M subcarriers on the frequency resource, for example, M=12;

Physical resource block (Physical Resource block, PRB): refers to the time-frequency resource (Time-Frequency resource) composed of K RBs on the frequency resource and L time slots (slots) on the time resource, such as K=1, L =1;

Physical resource block pair (PRB pair): refers to a resource composed of two PRBs in the same RB position, that is, a time-frequency resource composed of K RBs on the frequency resource and 2L slots on the time resource, such as K = 1, L=1;

The unit with the smallest time-frequency resource is called Resource Element (RE), which refers to Q subcarriers in frequency and P physical symbols in time (such as Orthogonal Frequency Division Multiplexing (OFDM) symbols or single carrier Frequency division multiplexing (Single carrier-Frequency Division Multiplexing, SC-FDM symbol) resources, such as Q=1, P=1; time-frequency resources consist of one or more REs.

In this application, unless otherwise specified, resources refer to time-frequency resources. In the current standard, one SCI (also called SA) occupies one PRB pair; while the scheduling of data (data) in the sidelink is based on subframes (2 slots) in time, and the number of RBs in frequency is determined by SCI to indicate.

The definitions of the aforementioned concepts are based on the LTE protocol. In new communication system technologies or various evolutionary system technologies, such as 5G, different concepts may be used to define them, or different parameter values may be used to define them; for example, M may not be 12, and SCI may not occupy 1 PRB pair. The present application adopts the concept description in LTE from the perspective of easy understanding, but is not limited thereto.

The technical aspects of the present application are described below with reference to several specific embodiments. These specific embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.

FIG. 2 is a schematic flowchart of Embodiment 1 of the device communication method of the present application, as shown in FIG. 2 :

S201: The relay device determines a first resource from a candidate resource set.

The candidate resource set refers to a set of resources in the resource pool that can be used to transmit the first control information. The candidate resource set is part of the resources in the resource pool. The resources in the resource pool are used for communication between the relay device and the remote device. The resource pool contains candidate resource sets.

The first resource refers to a resource used for transmitting the first control information, which may be any resource in the candidate resource set.

The candidate resource set can be determined according to the following preset rules:

For example, one or more resources corresponding to the position of at least one RB in the middle of the resource pool are determined to form a candidate resource set.

Alternatively, one or more resources corresponding to the position of the frequency resource where the synchronization signal is located and the first preset time distance from the synchronization signal is determined to form a candidate resource set, and the synchronization signal is the synchronization signal sent by the relay device to the remote device.

Or, determine one or more resources corresponding to a position offset by a second preset time distance from a direct frame number (Direction Frame Number, DFN) #0 or a system frame number (System Frame Number, SFN) #0 and appearing at a preset period Form candidate resource sets. Among them, DFN is also called D2D frame number.

Optionally, before S201, it may further include: S200:

S200: The relay device acquires configuration information of the resource pool.

Optionally, the manner in which the relay device obtains the resource pool includes but is not limited to the following implementation manners:

One of the possible implementations: the base station or the network side device sends the configuration information of the resource pool to the relay device, and the relay device obtains information such as the time and frequency position of the resource pool and/or the size of the resource pool according to the configuration information of the resource pool. Specifically, the base station may send the configuration information of the resource pool to the relay device through the control information transmitted on the cellular link.

Another possible implementation manner: the relay device obtains the configuration information of the resource pool in a pre-configured manner; for example, it is stipulated by the protocol, or pre-configured by the network side device according to the permission of the wireless management organization in different regions.

S202: The relay device sends the first control information on the first resource.

The relay device can determine the remote device scheduled by the relay device according to the situation of services and resources.

The first control information is used to indicate the information of the remote device scheduled by the relay device (it can also be expressed as information of whether the remote device is scheduled by the relay device) and the location information of the second resource corresponding to the scheduled remote device.

Assuming that the relay device schedules 3 remote devices, it indicates in the first control information that 3 remote devices are scheduled, and the 3 remote devices are remote device 1, remote device 2 and remote device 4 respectively; transmit the first control information and the second resource for transmitting the second control information of the remote device 1, the second resource for transmitting the second control information of the remote device 2, and the second resource for transmitting the second control information of the remote device 2 as shown in Figure 3 shown. The first control information may be sent periodically.

In a possible implementation manner, the information of the remote device scheduled by the relay device and the location information of the second resource corresponding to the scheduled remote device may be carried in the bypass control information SCI corresponding to the first control information. In the SCI, two fields are defined for each remote device scheduled by the relay device. As shown in Figure 4, one field is used to indicate the information of the remote device scheduled by the relay device. For example, the information of the remote device can be the remote device. The local ID (Local ID) or temporary ID of the device, uses N bits to identify a remote device, and can identify up to 2 ^N remote devices. In FIG. 4 , the IDs of the remote devices are indicated by 3 bits, which are C7, C6 and C5 respectively, which can be used to identify the information of 8 remote devices. Another field is used to indicate the location information of the second resource. In FIG. 4 , 5 bits are used as an example, which are C4, C3, C2, C1, and C0 respectively.

In another possible implementation manner, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the Media Access Control Element of the data corresponding to the first control information. , MAC CE).

This method is similar to the method shown in Fig. 4, the difference is that in Fig. 4, two fields are defined in the SCI for each remote device scheduled by the relay device, and this method is in the MAC CE of the data corresponding to the first control information. Two domains are defined for the remote devices scheduled by each relay device in FIG. 4 , and the definition of the two domains is similar to that in FIG. 4 , and details are not repeated here.

In another possible implementation manner, the information of the remote device scheduled by the relay device is carried in the bypass control information SCI corresponding to the first control information, and the location information of the second resource is carried in the in the MAC CE of the data corresponding to the first control information. As shown in FIG. 5 , the SCI corresponding to the first control information indicates that the information of the remote device scheduled by the relay device may be indicated by means of a bitmap (bitmap, also referred to as a bitmap). The remote device corresponds to a bit in the bitmap. In Figure 5, an 8-bit bitmap is used to indicate whether the remote device associated with the relay device is scheduled, and the value of the corresponding bit is set to indicate whether the corresponding remote device is scheduled. For example, if 1 means scheduled, 0 means not scheduled , if a remote device is scheduled, set the value of the bit corresponding to the remote device to 1. If 0 means scheduled, 1 means not scheduled, if a remote device is scheduled, set the value of the bit corresponding to the remote device to 0. In FIG. 5 , it is assumed that the value of the bit is 1 to indicate that it is scheduled, then the remote device 1, the remote device 2 and the remote device 4 are scheduled, and the remaining remote devices are not scheduled. The MAC CE of the data corresponding to the first control information carries the location information of the second resource, as shown in FIG. 5 . The remote device first detects the SCI corresponding to the first control device to determine whether it is scheduled, and if it is scheduled, detects the MAC CE of the data corresponding to the first control information to obtain the location information of the second resource. In the manner shown in FIG. 5 , only the scheduled remote device needs to demodulate the MAC CE of the data corresponding to the first control information.

FIG. 6 is a schematic diagram of a relay device scheduling a remote device through the first control information and the second control information according to the present application. In the figure (a), the transmission of the first control information in the SCI is shown; in the figure (b), the transmission of the first control information in the MAC CE of the SCI and the data is shown. Here, the case when the PSCCH and PSSCH resource pools are frequency-division multiplexed is only described by way of example. The method of the present application is also applicable to the case of time division multiplexing of PSCCH and PSSCH resource pools.

S203: The relay device sends the second control information of the remote device scheduled by the relay device on the second resource according to the determined location information of the second resource.

Wherein, the second control information includes scheduling information.

Optionally, before sending the second control information of the scheduled remote device, the relay device may further scramble the corresponding second control information of the scheduled remote device by using related information of the scheduled remote device. For example: the relevant information can be identification information, such as a global ID, or a cell radio network temporary identifier (CellRadioNetworkTemporaryIdentifier, C-RNTI), layer 2 ID, etc.; such as: the remote device 1 is scheduled by the relay device, then the first The second control information is scrambled by the identification information of the remote device 1 such as the global ID, so that the remote device 1 can correctly descramble the second control information, while other remote devices cannot correctly descramble the second control information of the remote device 1 .

Optionally, the second control information may further include second indication information, where the second indication information is used to indicate that the second control information is control information for scheduling the transmission resources of the relay device; or, the second control information is for scheduling the remote device control information of the transmission resource. That is, the second indication information is used to indicate whether the second control information is bypass uplink (Sidelink UL) control information or bypass downlink (Sidelink DL) control information. The second indication information may be represented by 1 bit, for example: 0 represents bypass downlink control information, and 1 represents bypass uplink control information. The bypass downlink refers to the link from the relay device to the remote device; the bypass uplink refers to the link from the remote device to the relay device.

Correspondingly, the remote device receives the first control information at the first resource, determines the second resource according to the location information of the second resource, and receives the second control information at the second resource.

For the detailed description of the first resource, the first control information, the second resource, and the second control information, refer to the detailed description of the relevant part in S200-S203, which will not be repeated here.

In this embodiment, the relay device determines the first resource from the candidate resource set, sends the first control information on the first resource, and sends the second control information on the second resource. Following the location information of the remote device and the second resource scheduled by the device, the remote device can determine whether it is scheduled through the first control information received at the first resource, and if it is scheduled, its corresponding second resource. Location information, receiving its corresponding second control information in its corresponding second resource, and obtaining its scheduling information, which is equivalent to the remote device blindly checking the first control information, and after detecting the first control information, it can be directly determined to transmit the first control information. The location information of the second resource of the second control information, that is, there is no need to blindly detect the resources between the first resource and the second resource, thereby narrowing the blind detection range of the remote device and reducing the power consumption of the remote device.

On the basis of the embodiment shown in FIG. 2 , further, the remote device can be made to know in advance the location information of the candidate resource set that the relay device can use to transmit the first control information; so that the remote device can, according to the location information of the candidate resource set, The first control information is detected on the resources of the candidate resource set, which further reduces the blind detection range of the remote device and further reduces the power consumption of the remote device.

The manner in which the remote device obtains in advance the location information of the candidate resource set that the relay device can use to transmit the first control information includes but is not limited to the following two:

Among them, a possible implementation manner: enabling the remote device to know the location information of the candidate resource set in a pre-configured manner.

In another possible implementation manner, the relay device sends the first indication information to the remote device to enable the remote device to know the candidate resource set, where the first indication information is used to indicate the location information of the candidate resource set, and the location information of the candidate resource set is The location information may include the location information of the initial resource and the period of the candidate resource.

The manner in which the relay device sends the first indication information to the remote device includes but is not limited to the following: a possible implementation manner: the relay device sends the first indication information to the remote device through a broadcast message; for example: the relay device Send the first indication information to the remote device through a Physical Sidelink Broadcast Channel (Physical Sidelink Broadcast Channel, PSBCH). Or, the relay device sends the first indication information to the remote device through a discovery message (discovery message). Another possible implementation manner: the relay device sends the first indication message to the remote device through a radio resource control (Radio Resource Control, RRC) message.

In the above embodiments, if the first control information and the second control information can share resources, different (Demodulation Reference Signal, DMRS), preamble sequences or SCIs corresponding to the first control information and the second control information may be used. A Cyclic Redundancy Check (CRC) is used to distinguish the first control information and the second control information.

FIG. 7 is a schematic flowchart of Embodiment 2 of the device communication method of the present application. The difference between FIG. 7 and the embodiment shown in FIG. 2 is that, in the embodiment shown in FIG. 2, the location information of the second resource is directly carried in the first In the control information, in the embodiment shown in FIG. 7 , the location information of the second resource is indicated in an implicit manner, as shown in FIG. 7 :

S701: The relay device sends the first control information on the first resource.

The first control information is used to indicate the information of the remote device scheduled by the relay device.

S702: The remote device determines whether the information of the remote device scheduled by the relay device indicated in the first control information includes its information, and if it does, determines the second resource according to a preset rule.

The preset rule may be pre-configured; the relay device may send the preset rule to the remote device when associated with the remote device, or the relay device may send the preset rule to the remote device through broadcast information, or , the preset rules can also be specified by standards, etc., which are not limited in this application.

S703: The relay device sends the second control information of the scheduled remote device on the second resource.

Accordingly, the remote device receives its second control information at the second resource.

In this embodiment, the relay device sends the first control information on the first resource, and the remote device determines whether the information of the remote device scheduled by the relay device indicated in the first control information includes its information, and if it does, it is determined according to a preset rule The second resource, the relay device sends the second control information of the scheduled remote device on the second resource, and the remote device receives its second control information on the second resource. Since the second resource is pre-configured, the remote device determines its After being scheduled, the second control information is received at the second resource, which reduces the blind detection range of the remote device and reduces the power consumption of the remote device.

FIG. 8 is a schematic flowchart of Embodiment 3 of the device communication method of the present application. The method of this embodiment is executed by a relay device, and the method of this embodiment is as follows:

S801: Obtain configuration information of a resource pool.

S802: Configure control information and resources.

S803: Send public control information.

Wherein, the public control information carries the information of the specific remote device and the location information of the control information of the specific remote device. The specific remote device refers to the remote device that is dispatched by the relay device.

S804: Send control information of a specific remote device.

For a detailed description of each step in this embodiment, reference may be made to the detailed description of the corresponding step in FIG. 2 or FIG. 7 , which is not repeated in this embodiment. The implementation principle and technical effect of this embodiment are similar, and details are not repeated here.

FIG. 9 is a schematic flowchart of Embodiment 4 of the device communication method of the present application. The method of this embodiment is executed by a remote device, and the method of this embodiment is as follows:

S901: Detect public control information.

S902: Determine whether it is scheduled by the relay device, if yes, execute S903, if not, end.

S903: Detect control information of a specific remote device.

For a detailed description of each step in this embodiment, reference may be made to the detailed description of the corresponding step in FIG. 2 or FIG. 7 , which is not repeated in this embodiment. The implementation principle and technical effect of this embodiment are similar, and details are not repeated here.

FIG. 10 is a schematic structural diagram of a device communication apparatus provided by the present application. The device communication apparatus is deployed in a relay device, and the apparatus includes: a processing module 1001 and a sending module 1002; wherein, the processing module 1001 is used to collect information from candidate resources Determine the first resource, and the first resource is used to transmit the first control information; the sending module 1002 is used to send the first control information on the first resource, and the first control information is used to indicate the information of the remote device scheduled by the relay device and the first control information. The location information of the second resource; the sending module 1002 is further configured to send the second control information of the remote device scheduled by the relay device on the second resource according to the location information of the second resource.

Optionally, the processing module 1001 is further configured to acquire configuration information of a resource pool, where the resource pool includes candidate resource sets.

Optionally, the processing module 1001 is specifically configured to receive configuration information of the resource pool sent by the base station.

Optionally, the candidate resource set is any of the following:

One or more resources corresponding to the position of at least one RB in the middle of the resource pool;

One or more resources corresponding to the position of the frequency resource where the synchronization signal is located and the first preset time distance from the synchronization signal;

One or more resources corresponding to a position that is offset from the direct frame No. 0 or the system frame No. 0 by a second preset time distance and occurs at a preset period.

Optionally, the sending module 1002 is further configured to send first indication information to the remote device, where the first indication information is used to indicate the location information of the candidate resource set.

Optionally, the location information of the candidate resource set includes the location information of the initial resource and the period of the candidate resource.

Optionally, the sending module 1002 is specifically configured to send the first indication information to the remote device through the physical bypass broadcast channel PSBCH; or, to send the first indication information to the remote device through a discovery message; or, to send the first indication information to the remote device through a radio resource control RRC message. The device sends a first indication message.

Optionally, processing module 1002 is also used to determine a candidate resource set from a preconfigured resource pool.

Optionally, the processing module 1002 is further configured to scramble the second control information by using the identification information of the remote device.

Optionally, the second control information further includes second indication information, where the second indication information is used to indicate that the second control information is the control information for scheduling the transmission resources of the relay device; or, the second control information is the control information for scheduling the transmission resources of the remote device. Control information for transmission resources.

Optionally, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the bypass control information SCI corresponding to the first control information;

Or, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the MAC CE of the data corresponding to the first control information;

Alternatively, the information of the remote device scheduled by the relay device is carried in the bypass control information SCI corresponding to the first control information, and the location information of the second resource is carried in the MAC CE of the data corresponding to the first control information.

Optionally, the demodulation reference signal DMRS, the preamble sequence or the cyclic redundancy check CRC used by the bypass control information SCI corresponding to the first control information and the second control information is different.

The apparatus in the embodiment shown in FIG. 10 can correspondingly be used to execute the steps corresponding to the relay device in the method embodiment shown in FIG. 2 , and the implementation principles and technical effects thereof are similar, and will not be repeated here.

FIG. 11 is a schematic structural diagram of another device communication device provided by the application. The device communication device is deployed in a remote device. As shown in FIG. 11 , the device includes: a receiving module 1101 and a processing module 1102; wherein, the receiving module 1101 uses for receiving the first control information at the first resource, the first control information is used to indicate the information of the remote device scheduled by the relay device; the processing module 1102 is configured to determine the second resource according to the information of the remote device scheduled by the relay device ; The receiving module 1101 is further configured to receive the second control information in the second resource.

Optionally, the first control information is further used to indicate location information of the second resource;

The processing module 1102 is specifically configured to determine the second resource according to the location information of the second resource.

Optionally, the processing module 1102 is specifically configured to determine the second resource according to a preset rule if the information of the remote device scheduled by the relay device includes the identifier of the remote device.

Optionally, the processing module 1102 is specifically configured to determine the second resource according to the preconfigured location information of the second resource.

Optionally, the receiving module 1101 is further configured to receive the location information of the preconfigured second resource sent by the relay device.

Optionally, the receiving module 1101 is specifically configured to detect the first control information in the candidate resource corresponding to the candidate resource set, and the candidate resource set includes the first resource.

Optionally, the receiving module 1101 is further configured to receive the first indication information sent by the relay device, where the indication information is used to indicate the location information of the candidate resource set.

Optionally, the location information of the candidate resource set includes the location information of the initial resource and the period of the candidate resource.

Optionally, the receiving module 1101 is specifically configured to receive the first indication information sent by the relay device through the physical bypass broadcast channel PSBCH; or, receive the first indication information sent by the relay device through a discovery message; or, through the radio resource control The RRC message receives the first indication information sent by the relay device.

Optionally, the processing module 1102 is further configured to descramble the second control information by using the identification information of the remote device.

Optionally, the second control information further includes second indication information;

The processing module 1102 is further configured to determine, according to the second indication information, that the second control information is control information for scheduling transmission resources of the relay device; or, the second control information is control information for scheduling transmission resources of remote devices.

The apparatus in the embodiment shown in FIG. 11 can correspondingly be used to execute the steps corresponding to the remote device in the method embodiment shown in FIG. 2 or FIG. 7 , and the implementation principles and technical effects thereof are similar, and are not repeated here.

FIG. 12 is a schematic structural diagram of still another device communication apparatus provided by the present application. The device communication apparatus is deployed in a relay device, and the apparatus includes: a processor 1201 and a transmitter 1202; wherein the processor 1201 is used to obtain a candidate resource from a candidate resource. The first resource is centrally determined, and the first resource is used to transmit the first control information; the transmitter 1202 is used to send the first control information on the first resource, and the first control information is used to indicate the information of the remote device scheduled by the relay device and The location information of the second resource; the transmitter 1202 is further configured to send the second control information of the remote device scheduled by the relay device on the second resource according to the location information of the second resource.

Optionally, the processor 1201 is further configured to acquire configuration information of a resource pool, where the resource pool includes candidate resource sets.

Optionally, the processor 1201 is specifically configured to receive configuration information of the resource pool sent by the base station.

Optionally, the candidate resource set is any of the following:

One or more resources corresponding to the position of at least one RB in the middle of the resource pool;

One or more resources corresponding to the position of the frequency resource where the synchronization signal is located and the first preset time distance from the synchronization signal;

One or more resources corresponding to a position that is offset from the direct frame No. 0 or the system frame No. 0 by a second preset time distance and occurs at a preset period.

Optionally, the transmitter 1202 is further configured to send first indication information to the remote device, where the first indication information is used to indicate the location information of the candidate resource set.

Optionally, the location information of the candidate resource set includes the location information of the initial resource and the period of the candidate resource.

Optionally, the transmitter 1202 is specifically configured to send the first indication information to the remote device through the physical bypass broadcast channel PSBCH; or, to send the first indication information to the remote device through a discovery message; or, to send the first indication information to the remote device through a radio resource control RRC message. The device sends a first indication message.

Optionally, the processor 1201 is further configured to determine a candidate resource set from a preconfigured resource pool.

Optionally, the processor 1201 is further configured to scramble the second control information by using the identification information of the remote device.

Optionally, the second control information further includes second indication information, where the second indication information is used to indicate that the second control information is the control information for scheduling the transmission resources of the relay device; or, the second control information is the control information for scheduling the transmission resources of the remote device. Control information for transmission resources.

Optionally, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the bypass control information SCI corresponding to the first control information;

Or, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the MAC CE of the data corresponding to the first control information;

Alternatively, the information of the remote device scheduled by the relay device is carried in the bypass control information SCI corresponding to the first control information, and the location information of the second resource is carried in the MAC CE of the data corresponding to the first control information.

Optionally, the demodulation reference signal DMRS, the preamble sequence or the cyclic redundancy check CRC used by the bypass control information SCI corresponding to the first control information and the second control information is different.

The apparatus in the embodiment shown in FIG. 12 can correspondingly be used to execute the steps corresponding to the relay device in the method embodiment shown in FIG. 2 , and the implementation principles and technical effects thereof are similar, and will not be repeated here.

FIG. 13 is a schematic structural diagram of another device communication apparatus provided by this application. The device communication apparatus is deployed in a remote device. As shown in FIG. 13 , the apparatus includes: a receiver 1301 and a processor 1302; wherein the receiver 1301 uses receiving the first control information at the first resource, where the first control information is used to indicate the information of the remote device scheduled by the relay device; the processor 1302 is configured to determine the second resource according to the information of the remote device scheduled by the relay device ; the receiver 1301 is further configured to receive the second control information at the second resource.

Optionally, the first control information is further used to indicate location information of the second resource;

The processor 1302 is specifically configured to determine the second resource according to the location information of the second resource.

Optionally, the processor 1302 is specifically configured to determine the second resource according to a preset rule if the information of the remote device scheduled by the relay device includes the identifier of the remote device.

Optionally, the processor 1302 is specifically configured to determine the second resource according to the preconfigured location information of the second resource.

Optionally, the receiver 1301 is further configured to receive the location information of the preconfigured second resource sent by the relay device.

Optionally, the receiver 1301 is specifically configured to detect the first control information in the candidate resource corresponding to the candidate resource set, and the candidate resource set includes the first resource.

Optionally, the receiver 1301 is further configured to receive the first indication information sent by the relay device, where the indication information is used to indicate the location information of the candidate resource set.

Optionally, the location information of the candidate resource set includes the location information of the initial resource and the period of the candidate resource.

Optionally, the receiver 1301 is specifically configured to receive the first indication information sent by the relay device through the physical bypass broadcast channel PSBCH; or, receive the first indication information sent by the relay device through a discovery message; or, through the radio resource control The RRC message receives the first indication information sent by the relay device.

Optionally, the processor 1302 is further configured to descramble the second control information by using the identification information of the remote device.

Optionally, the second control information further includes second indication information;

The processor 1302 is further configured to determine, according to the second indication information, that the second control information is control information for scheduling transmission resources of the relay device; or, the second control information is control information for scheduling transmission resources of remote devices.

The apparatus in the embodiment shown in FIG. 13 can correspondingly be used to execute the steps corresponding to the remote device in the method embodiment shown in FIG. 2 or FIG. 7 , and the implementation principles and technical effects thereof are similar, and are not repeated here.

It should be understood that the processor in this application may be a central processing unit (CPU), 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 devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. A processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.

The bus of the present application may be an Industry Standard Architecture (Industry Standard Architecture, ISA) bus, a Peripheral Component (Peripheral Component, PCI) bus, or an Extended Industry Standard Architecture (Extended Industry Standard Architecture, EISA) bus, or the like. The bus can be divided into address bus, data bus, control bus and so on. For convenience of representation, the buses in the drawings of the present application are not limited to only one bus or one type of bus.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, for example, multiple units or components may be combined or integrated. to another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

Units described as separate components may or may not be physically separated, and components shown as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.

The above-mentioned integrated units implemented in the form of software functional units can be stored in a computer-readable storage medium. The above-mentioned software functional unit is stored in a storage medium, and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (English: processor) to execute the various embodiments of the present application. part of the method. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (English: Read-Only Memory, referred to as: ROM), random access memory (English: Random Access Memory, referred to as: RAM), magnetic disk or optical disk, etc. Various media that can store program code.

Claims (30)

1. A device communication method, comprising:

the relay equipment determines a first resource from a candidate resource set, wherein the first resource is used for transmitting first control information;

the relay device sends the first control information at the first resource, wherein the first control information is common control information and is used for indicating information of a remote device scheduled by the relay device and position information of a second resource;

and the relay equipment transmits second control information of the remote equipment scheduled by the relay equipment in the second resource.

2. The method of claim 1, wherein before the relay device determines the first resource from the candidate set of resources, further comprising:

the relay device obtains configuration information of a resource pool, wherein the resource pool comprises the candidate resource set.

3. The method of claim 2, wherein the relay device obtaining configuration information of a resource pool comprises:

and the relay equipment receives the configuration information of the resource pool sent by the base station.

4. The method of claim 2 or 3, wherein the candidate resource set is any one of:

one or more resources corresponding to the position of at least one RB in the middle of the resource pool;

one or more resources corresponding to the positions of the frequency resources where the synchronization signals are located and the first preset time distance from the synchronization signals;

and shifting one or more resources corresponding to the position where the second preset time distance appears in a preset period from the No. 0 direct frame or the No. 0 system frame.

5. The method of any of claims 1-3, wherein prior to the relay device determining the first resource from the set of candidate resources, further comprising:

the relay device sends first indication information to the remote device, wherein the first indication information is used for indicating the position information of the candidate resource set.

6. The method of claim 5, wherein the relay device sends first indication information to the remote device, comprising:

the relay equipment sends the first indication information to the remote equipment through a physical bypass broadcast channel (PSBCH);

or,

the relay device sends the first indication information to the remote device through a discovery message;

or,

the relay device sends the first indication message to the remote device via a radio resource control, RRC, message.

7. The method according to any of claims 1-6, wherein the second control information further comprises second indication information, and the second indication information is used for indicating that the second control information is control information for scheduling transmission resources of the relay device; or, the second control information is control information for scheduling transmission resources of the remote device.

8. The method according to any of claims 1-7, wherein the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the bypass control information SCI corresponding to the first control information;

or, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the MAC CE of the data corresponding to the first control information;

or, the information of the remote device scheduled by the relay device is carried in the bypass control information SCI corresponding to the first control information, and the location information of the second resource is carried in the MAC CE of the data corresponding to the first control information.

9. A device communication method, comprising:

the remote equipment receives first control information at a first resource, wherein the first control information is public control information and is used for indicating the information of the remote equipment scheduled by the relay equipment;

the remote equipment determines a second resource according to the information of the remote equipment scheduled by the relay equipment;

the remote device receives the second control information at the second resource.

10. The method of claim 9, wherein the first control information is further used for indicating location information of the second resource;

the remote device determines a second resource according to the information of the remote device scheduled by the relay device, including:

and the remote equipment determines the second resource according to the position information of the second resource.

11. The method of claim 9, wherein the determining, by the remote device, the second resource according to the information of the remote device scheduled by the relay device comprises:

and if the information of the remote equipment scheduled by the relay equipment comprises the identification of the remote equipment, the remote equipment determines the second resource according to a preset rule.

12. The method of claim 11, wherein the remote device determines the second resource according to a preset rule, comprising:

and the remote equipment determines the second resource according to the pre-configured position information of the second resource.

13. The method of claim 12, wherein the remote device determines the second resource before determining the second resource according to the location information of the second resource configured in advance, further comprising:

and the remote equipment receives the position information of the pre-configured second resource sent by the relay equipment.

14. The method of any of claims 9-13, wherein the remote device receives first control information at a first resource, comprising:

the remote device detects first control information in a candidate resource corresponding to a candidate resource set, wherein the candidate resource set comprises the first resource.

15. The method of claim 14, wherein the remote device further comprises, before detecting the first control information in the candidate resource corresponding to the candidate resource set:

the remote equipment receives first indication information sent by the relay equipment, wherein the first indication information is used for indicating the position information of the candidate resource set.

16. The method of claim 15, wherein the receiving, by the remote device, the first indication information sent by the relay device comprises:

the remote equipment receives the first indication information sent by the relay equipment through a physical bypass broadcast channel (PSBCH);

or,

the remote equipment receives the first indication information sent by the relay equipment through a discovery message;

or,

and the remote equipment receives the indication information sent by the relay equipment through a Radio Resource Control (RRC) message.

17. The method according to any of claims 1-16, wherein the second control information further comprises second indication information;

the method further comprises the following steps:

the remote equipment determines the second control information as control information for scheduling transmission resources of the relay equipment according to the second indication information; or, the second control information is control information for scheduling transmission resources of the remote device.

18. An apparatus communication device disposed in a relay apparatus, comprising:

a processor configured to determine a first resource from a set of candidate resources, the first resource being used for transmission of first control information;

a transmitter, configured to transmit the first control information at the first resource, where the first control information is common control information, and the first control information is used to indicate information of a remote device scheduled by a relay device and location information of a second resource;

the transmitter is further configured to transmit second control information of the remote device scheduled by the relay device on the second resource.

19. The apparatus of claim 18, wherein the processor is further configured to obtain configuration information of a resource pool, and wherein the resource pool comprises the candidate resource set.

20. The apparatus of claim 19, wherein the set of candidate resources is any one of:

one or more resources corresponding to the position of at least one RB in the middle of the resource pool;

one or more resources corresponding to the positions of the frequency resources where the synchronization signals are located and the first preset time distance from the synchronization signals;

and shifting one or more resources corresponding to the position where the second preset time distance appears in a preset period from the No. 0 direct frame or the No. 0 system frame.

21. The apparatus of claim 18 or 19, wherein the transmitter is further configured to transmit first indication information to the remote device, the first indication information indicating location information of the candidate resource set.

22. The apparatus of claim 21, wherein the transmitter is specifically configured to transmit the first indication information to the remote device over a physical bypass broadcast channel (PSBCH); or, sending the first indication information to the remote device through a discovery message; or, the first indication message is sent to the remote device by a radio resource control, RRC, message.

23. The apparatus according to any of claims 18-22, wherein the second control information further includes second indication information, and the second indication information is used to indicate that the second control information is control information for scheduling transmission resources of the relay device; or, the second control information is control information for scheduling transmission resources of the remote device.

24. The apparatus according to any of claims 18-23, wherein the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the bypass control information SCI corresponding to the first control information;

or, the information of the remote device scheduled by the relay device and the location information of the second resource are carried in the MAC CE of the data corresponding to the first control information;

or, the information of the remote device scheduled by the relay device is carried in the bypass control information SCI corresponding to the first control information, and the location information of the second resource is carried in the MAC CE of the data corresponding to the first control information.

25. A device communication apparatus, the device communication apparatus being deployed at a remote device, comprising:

a receiver, configured to receive first control information at a first resource, where the first control information is common control information, and the first control information is used to indicate information of a remote device scheduled by a relay device;

a processor, configured to determine a second resource according to the information of the remote device scheduled by the relay device;

the receiver is further configured to receive the second control information at the second resource.

26. The apparatus of claim 25, wherein the first control information is further used for indicating location information of the second resource;

the processor is specifically configured to determine the second resource according to the location information of the second resource.

27. The apparatus of claim 25, wherein the processor is specifically configured to determine the second resource according to a preset rule if the information of the remote device scheduled by the relay device includes an identifier of the remote device.

28. The apparatus of claim 27, wherein the processor is further configured to determine the second resource according to location information of a preconfigured second resource.

29. The apparatus of claim 28, wherein the receiver is further configured to receive location information of the preconfigured second resource sent by the relay device.

30. The apparatus according to any of claims 25-29, wherein the receiver is specifically configured to detect the first control information in a candidate resource corresponding to a set of candidate resources, the set of candidate resources comprising the first resource.

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