CN114424463A

CN114424463A - Method and device for joint scheduling

Info

Publication number: CN114424463A
Application number: CN201980100615.2A
Authority: CN
Inventors: 张云昊; 徐修强; 陈雁
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2022-04-29
Also published as: WO2021068259A1

Abstract

In the method, a side link between terminals and an uplink between a terminal and a network device are controlled through control information of joint scheduling, so that signaling overhead during terminal cooperative communication can be reduced. The method and the device provided by the application can be applied to application scenes such as internet of things (IoT), Machine Type Communication (MTC), massive MTC (mMTC), Internet of vehicles and the like.

Description

Method and device for joint scheduling

Technical Field

The present application relates to the field of communications, and in particular, to a method and an apparatus for joint scheduling in the field of communications.

Background

In a wireless communication network, one terminal may forward data to a network device by means of another terminal, which may also be referred to as terminal cooperation. However, the network device may generate a signaling storm when controlling data transmission of the two terminals, thereby increasing communication overhead. Therefore, how to reduce the overhead in the terminal cooperation communication becomes a problem to be solved urgently.

Disclosure of Invention

The embodiment of the application provides a method and a device for joint scheduling.

In a first aspect, an embodiment of the present application provides a communication method, which may be performed by a second terminal, and may also be performed by a component (e.g., a processor, a chip, or a system-on-chip) of the second terminal, where the method includes: the method includes receiving control information from the network device, receiving data from the first terminal on a first resource according to the control information, and transmitting the data to the network device on a second resource according to the control information. The control information may be understood as a kind of joint scheduling control information, which may be used for scheduling both the sidelink data between the first terminal and the second terminal and the uplink data between the second terminal and the network device.

By the method, the network equipment can complete the joint scheduling of the sidelink and the uplink in the terminal cooperative communication through one piece of control information, thereby reducing the signaling overhead in the terminal cooperative communication.

Optionally, the control information is transmitted in a multicast manner. The resource overhead occupied by the control information can be saved by sending the control information in a multicast mode.

Alternatively, the control information is carried in a physical channel, and the physical channel may be, for example, a Physical Downlink Control Channel (PDCCH) or the like. The control information can be issued more quickly through the physical channel, so that the time delay in the terminal cooperation communication process can be reduced.

Optionally, the control information is descrambled using a Radio Network Temporary Identifier (RNTI) as follows:

group RNTI: the group RNTI is used for identifying a terminal group;

cell RNTI (cell RNTI, C-RNTI) of the first terminal: the C-RNTI of the first terminal is used for identifying the first terminal;

C-RNTI of the second terminal: the C-RNTI of the second terminal is used for identifying the second terminal.

By descrambling the control information using the RNTI, the terminal can correctly recognize the control information.

Alternatively, the data from the first terminal is received on a sidelink channel, which may be, for example, a physical sidelink shared channel (psch), a Physical Sidelink Discovery Channel (PSDCH), or the like. When the first terminal and the second terminal are close to each other, the quality of the sidelink channel between the first terminal and the second terminal is generally relatively good, so that the data can be received and transmitted by the sidelink channel, and the data receiving accuracy can be improved.

Optionally, the data is transmitted to the network device on an uplink channel, and the uplink channel may be, for example, a Physical Uplink Shared Channel (PUSCH) or the like. When the quality of the uplink channel between the second terminal and the network equipment is good, the data is forwarded to the network equipment by means of the uplink channel, and the receiving accuracy during data forwarding can be improved.

Optionally, the first terminal and the second terminal belong to the same terminal group. Further optionally, the first terminal is a Target UE (TUE), and the second terminal is a Cooperative UE (CUE). Optionally, the first terminal is an energy consumption sensitive terminal, and the second terminal is an energy consumption insensitive terminal. The terminal cooperative communication can be completed under the condition of low energy consumption by a mode that the energy consumption insensitive terminals in the terminal group assist the energy consumption sensitive terminals to forward data.

Optionally, the data from the first terminal is received in an unauthorized manner on the first resource according to the control information. The method can activate the authorization-free communication of the side link through one piece of control information, thereby simplifying the process of the authorization-free communication and reducing the communication time delay.

Optionally, the data is sent to the network device in an authorization-free manner on the second resource according to the control information. The method can activate the authorization-free communication of the uplink through one piece of control information, thereby simplifying the process of the authorization-free communication and reducing the communication time delay.

With reference to the first aspect, in certain embodiments of the first aspect, the control information includes first indication information and second indication information, where the first indication information is used to indicate the first resource, and the second indication information is used to indicate an offset between the second resource and the first resource. Optionally, the offset includes one or more of a time domain offset, a frequency domain offset, a code domain offset, or a spatial offset. This embodiment may be understood as indicating the relative amount between the second resource and the first resource, thereby enabling a reduction of the indication overhead.

With reference to the first aspect, in some embodiments of the first aspect, the second indication information is used to indicate a value of an offset between the second resource and the first resource. By the embodiment, the offset value can be more accurately indicated, so that physical resources can be more fully utilized.

With reference to the first aspect, in some embodiments of the first aspect, the second indication information is used to indicate a first index, where the first index corresponds to a value of an offset between the second resource and the first resource. By this embodiment, the offset can be indicated in a quantized manner, thereby reducing the indication overhead.

With reference to the first aspect, in certain embodiments of the first aspect, the second indication information is used to indicate a plurality of second resources, or the number of second resources or the number of repetitions of the second resources is predefined. By the implementation mode, the number of the second resources can be increased, so that the transmission reliability of the data loaded on the second resources is improved.

With reference to the first aspect, in certain embodiments of the first aspect, the second indication information is used to indicate a number of the second resources or to indicate a number of repetitions of the second resources. By the embodiment, the number of the second resources or the repetition times of the second resources can be more accurately indicated, so that the physical resources can be more fully utilized.

With reference to the first aspect, in certain embodiments of the first aspect, the second indication information is used to indicate a second index, the second index corresponding to the number of the second resources or the number of repetitions of the second resources. By this embodiment, the number of second resources or the number of repetitions of the second resources can be indicated in a quantitative manner, thereby reducing the indication overhead.

With reference to the first aspect, in some embodiments of the first aspect, the second indication information is further used to indicate a pattern (pattern) of the second resource, or the pattern of the second resource is predefined. Through the implementation mode, the appropriate resource pattern can be flexibly matched according to different service requirements, so that different service requirements are met.

With reference to the first aspect, in certain embodiments of the first aspect, the second indication information is used to indicate a third index, the third index corresponding to a pattern of the second resource. By this embodiment, the pattern can be indicated in a quantized manner, thereby reducing the indication overhead.

With reference to the first aspect, in certain embodiments of the first aspect, the second indication information is used to indicate a time domain scaling factor and/or a frequency domain scaling factor of the second resource relative to the first resource. This embodiment may be understood as indicating a change of the second resource pattern relative to the first resource pattern, thereby enabling to flexibly indicate a more diverse resource pattern with a lower indication overhead.

With reference to the first aspect, in certain embodiments of the first aspect, the second indication information is used to indicate a fourth index corresponding to a time domain scaling factor and/or a frequency domain scaling factor of the second resource with respect to the first resource. By this embodiment, the time domain scaling coefficients and/or the frequency domain scaling coefficients can be indicated in a quantized manner, thereby reducing the indication overhead.

With reference to the first aspect, in some embodiments of the first aspect, the second indication information is used to indicate a plurality of second resources and is used to indicate a pattern of the second resources. Through the implementation mode, the number of the second resources can be increased, and the appropriate resource patterns can be flexibly matched according to different service requirements, so that the transmission reliability of data borne on the second resources can be improved while different service requirements are met.

With reference to the first aspect, in certain embodiments of the first aspect, the control information includes first indication information for indicating the first resource, or the control information includes second indication information for indicating the second resource, and the second resource has a corresponding relationship with the first resource. The correspondence may be predefined or may be configured by the network device. This embodiment can reduce the indication information in the control information, thereby reducing the indication overhead.

With reference to the first aspect, in certain embodiments of the first aspect, there is a predefined offset between the second resource and the first resource. The offset includes one or more of a time domain offset, a frequency domain offset, a code domain offset, or a spatial offset. By the method and the device, the terminal can quickly obtain the second resource after obtaining the first resource, so that the processing time delay and the processing complexity of the terminal are reduced.

With reference to the first aspect, in some embodiments of the first aspect, there is a correspondence between the number of the second resources or the number of repetitions of the second resources and the size of the first resources. By the implementation method, the terminal can quickly obtain the number of the second resources or the repetition times of the second resources after obtaining the size of the first resources, so that the processing time delay and the processing complexity of the terminal are reduced.

With reference to the first aspect, in some embodiments of the first aspect, the pattern of the second resource corresponds to the pattern of the first resource. By the method and the terminal, the terminal can quickly obtain the pattern of the second resource after obtaining the pattern of the first resource, so that the processing time delay and the processing complexity of the terminal are reduced.

With reference to the first aspect, in certain embodiments of the first aspect, the control information further includes third indication information. Before the aforementioned data is sent to the network device, the data is preprocessed according to the third indication information, and the preprocessing includes symbol-level equalization and/or symbol decision. The influence of channel frequency selectivity on data reception can be reduced by retransmitting the data through symbol-level equalization and/or symbol decision, so that the reliability of data reception is improved.

With reference to the first aspect, in some embodiments of the first aspect, the control information is determined to be used for joint scheduling or independent scheduling according to an RNTI of the descrambling control information, a format of the control information, a control resource set (core set) for carrying the control information, or a value indicated by a first indication field in the control information. By determining the action of the control information, whether the control information is used for joint scheduling of the sidelink and the uplink (namely, for uplink scheduling and sidelink scheduling) or independent scheduling of the sidelink and the uplink (namely, for uplink scheduling or sidelink scheduling) can be known, so that the method can adapt to the situation that joint scheduling and non-joint scheduling coexist, and meet the backward compatibility.

In a second aspect, embodiments of the present application provide a communication method, which may be executed by a first terminal, or may be executed by a component (e.g., a processor, a chip, or a system-on-chip) of the first terminal, and includes: and receiving control information from the network equipment, and sending data to the second terminal on the first resource according to the control information. Optionally, before receiving the control information, a scheduling request is sent to the network device, where the scheduling request is used to request the network device to perform terminal cooperation communication. The implementation method can initiate joint scheduling of terminal cooperative communication based on the request of the terminal, thereby more reasonably configuring scheduling resources and optimizing communication performance.

Optionally, the control information is carried in a physical channel, and the physical channel may be, for example, a PDCCH or the like. The control information can be issued more quickly through the physical channel, so that the time delay in the terminal cooperation communication process can be reduced.

Optionally, the control information is descrambled using one of the following RNTIs:

group RNTI: the group RNTI is used for identifying a terminal group;

C-RNTI of the first terminal: the C-RNTI of the first terminal is used for identifying the first terminal;

Optionally, the data is transmitted to the second terminal on a sidelink channel, which may be, for example, a PSSCH, a PSDCH, or the like. When the first terminal and the second terminal are close to each other, the quality of the sidelink channel between the first terminal and the second terminal is generally relatively good, so that the data can be received and transmitted by the sidelink channel, and the data receiving accuracy can be improved.

Optionally, the first terminal and the second terminal belong to the same terminal group. Further optionally, the first terminal is a TUE and the second terminal is a CUE. Optionally, the first terminal is an energy consumption sensitive terminal, and the second terminal is an energy consumption insensitive terminal. The terminal cooperative communication can be completed under the condition of low energy consumption by a mode that the energy consumption insensitive terminals in the terminal group assist the energy consumption sensitive terminals to forward data.

Optionally, the data is sent to the second terminal in an authorization-free manner on the first resource according to the control information. The method can activate the authorization-free communication of the side link through one piece of control information, thereby simplifying the process of the authorization-free communication and reducing the communication time delay.

With reference to the second aspect, in some embodiments of the second aspect, the control information includes first indication information and second indication information, where the first indication information is used to indicate the first resource, and the second indication information is used to indicate an offset between the second resource and the first resource. Optionally, the offset includes one or more of a time domain offset, a frequency domain offset, a code domain offset, or a spatial offset. This embodiment may be understood as indicating the relative amount between the second resource and the first resource, thereby enabling a reduction of the indication overhead.

With reference to the second aspect, in some embodiments of the second aspect, the second indication information is used to indicate a value of an offset between the second resource and the first resource. By the embodiment, the offset value can be more accurately indicated, so that physical resources can be more fully utilized.

With reference to the second aspect, in some embodiments of the second aspect, the second indication information is used to indicate a first index, and the first index corresponds to a value of an offset between the second resource and the first resource. By this embodiment, the offset can be indicated in a quantized manner, thereby reducing the indication overhead.

In some embodiments of the first aspect in combination with the second aspect, the second indication information is used to indicate a plurality of second resources, or the number of second resources or the number of repetitions of the second resources is predefined. By the implementation mode, the number of the second resources can be increased, so that the transmission reliability of the data loaded on the second resources is improved.

With reference to the second aspect, in some embodiments of the second aspect, the second indication information is used to indicate the number of the second resources or to indicate the number of repetitions of the second resources. By the embodiment, the number of the second resources or the repetition times of the second resources can be more accurately indicated, so that the physical resources can be more fully utilized.

With reference to the second aspect, in some embodiments of the second aspect, the second indication information is used to indicate a second index, the second index corresponding to the number of the second resources or the number of repetitions of the second resources. By this embodiment, the number of second resources or the number of repetitions of the second resources can be indicated in a quantitative manner, thereby reducing the indication overhead.

With reference to the second aspect, in some embodiments of the second aspect, the second indication information is further used to indicate a pattern (pattern) of the second resource, or the pattern of the second resource is predefined. Through the implementation mode, the appropriate resource pattern can be flexibly matched according to different service requirements, so that different service requirements are met.

With reference to the second aspect, in some embodiments of the second aspect, the second indication information is used to indicate a third index, the third index corresponding to the pattern of the second resource. By this embodiment, the pattern can be indicated in a quantized manner, thereby reducing the indication overhead.

With reference to the second aspect, in some embodiments of the second aspect, the second indication information is used to indicate a time domain scaling factor and/or a frequency domain scaling factor of the second resource relative to the first resource. This embodiment may be understood as indicating a change of the second resource pattern relative to the first resource pattern, thereby enabling to flexibly indicate a more diverse resource pattern with a lower indication overhead.

With reference to the second aspect, in some embodiments of the second aspect, the second indication information is used to indicate a fourth index, the fourth index corresponding to a time domain scaling factor and/or a frequency domain scaling factor of the second resource relative to the first resource. By this embodiment, the time domain scaling coefficients and/or the frequency domain scaling coefficients can be indicated in a quantized manner, thereby reducing the indication overhead.

With reference to the second aspect, in some embodiments of the second aspect, the second indication information is used to indicate a plurality of second resources and is used to indicate a pattern of the second resources. Through the implementation mode, the number of the second resources can be increased, and the appropriate resource patterns can be flexibly matched according to different service requirements, so that the transmission reliability of data borne on the second resources can be improved while different service requirements are met.

With reference to the second aspect, in some embodiments of the second aspect, the control information includes first indication information for indicating the first resource, or the control information includes second indication information for indicating the second resource, and the second resource has a corresponding relationship with the first resource. The correspondence may be predefined or may be configured by the network device. This embodiment can reduce the indication information in the control information, thereby reducing the indication overhead.

In some embodiments of the second aspect in combination with the second aspect, there is a predefined offset between the second resource and the first resource. The offset includes one or more of a time domain offset, a frequency domain offset, a code domain offset, or a spatial offset. By the method and the device, the terminal can quickly obtain the second resource after obtaining the first resource, so that the processing time delay and the processing complexity of the terminal are reduced.

With reference to the second aspect, in some embodiments of the second aspect, there is a correspondence between the number of the second resources or the number of repetitions of the second resources and the size of the first resources. By the implementation method, the terminal can quickly obtain the number of the second resources or the repetition times of the second resources after obtaining the size of the first resources, so that the processing time delay and the processing complexity of the terminal are reduced.

With reference to the second aspect, in some embodiments of the second aspect, the pattern of the second resource corresponds to the pattern of the first resource. By the method and the terminal, the terminal can quickly obtain the pattern of the second resource after obtaining the pattern of the first resource, so that the processing time delay and the processing complexity of the terminal are reduced.

With reference to the second aspect, in some embodiments of the second aspect, the control information is determined to be used for joint scheduling or independent scheduling according to an RNTI of the descrambling control information, a format of the control information, a CORESET carrying the control information, or a value indicated by a first indication field in the control information. By determining the action of the control information, whether the control information is used for joint scheduling of the sidelink and the uplink (namely, for uplink scheduling and sidelink scheduling) or independent scheduling of the sidelink and the uplink (namely, for uplink scheduling or sidelink scheduling) can be known, so that the method can adapt to the situation that joint scheduling and non-joint scheduling coexist, and meet the backward compatibility.

In a third aspect, an embodiment of the present application provides a communication method, which may be performed by a network device, or may be performed by a component (e.g., a processor, a chip, or a system-on-chip) of the network device, and includes: sending control information to the first terminal and the second terminal, wherein the control information is used for indicating that: the first terminal transmits data on the first resource, the second terminal receives the data on the first resource, and the second terminal transmits the data on the second resource; and receiving the data from the second terminal on the second resource. The control information may be understood as a kind of joint scheduling control information, which may be used for scheduling both the sidelink data between the first terminal and the second terminal and the uplink data between the second terminal and the network device.

Optionally, the control information is scrambled using one of the following RNTIs:

group RNTI: the group RNTI is used for identifying a terminal group;

Optionally, the above data from the second terminal is received on an uplink channel, which may be, for example, PUSCH or the like. When the quality of the uplink channel between the second terminal and the network equipment is good, the data is forwarded to the network equipment by means of the uplink channel, and the receiving accuracy during data forwarding can be improved.

Optionally, the control information is used to indicate: and the first terminal sends the data without authorization on the first resource and/or the second terminal receives the data without authorization on the first resource. The method can activate the authorization-free communication of the side link through one piece of control information, thereby simplifying the process of the authorization-free communication and reducing the communication time delay.

Optionally, the control information is used to indicate: and the second terminal sends the data on the second resource without authorization. The method can activate the authorization-free communication of the uplink through one piece of control information, thereby simplifying the process of the authorization-free communication and reducing the communication time delay.

With reference to the third aspect, in some embodiments of the third aspect, the control information includes first indication information and second indication information, where the first indication information is used to indicate the first resource, and the second indication information is used to indicate an offset between the second resource and the first resource. Optionally, the offset includes one or more of a time domain offset, a frequency domain offset, a code domain offset, or a spatial offset. This embodiment may be understood as indicating the relative amount between the second resource and the first resource, thereby enabling a reduction of the indication overhead.

With reference to the third aspect, in some embodiments of the third aspect, the second indication information is used to indicate a value of an offset between the second resource and the first resource. By the embodiment, the offset value can be more accurately indicated, so that physical resources can be more fully utilized.

With reference to the third aspect, in some embodiments of the third aspect, the second indication information is used to indicate a first index, and the first index corresponds to a value of an offset between the second resource and the first resource. By this embodiment, the offset can be indicated in a quantized manner, thereby reducing the indication overhead.

With reference to the third aspect, in certain embodiments of the third aspect, the second indication information is used to indicate a plurality of second resources, or the number of second resources or the number of repetitions of the second resources is predefined. By the implementation mode, the number of the second resources can be increased, so that the transmission reliability of the data loaded on the second resources is improved.

With reference to the third aspect, in certain embodiments of the third aspect, the second indication information is used to indicate the number of the second resources or to indicate the number of repetitions of the second resources. By the embodiment, the number of the second resources or the repetition times of the second resources can be more accurately indicated, so that the physical resources can be more fully utilized.

With reference to the third aspect, in certain embodiments of the third aspect, the second indication information is used to indicate a second index, the second index corresponding to the number of the second resources or the number of repetitions of the second resources. By this embodiment, the number of second resources or the number of repetitions of the second resources can be indicated in a quantitative manner, thereby reducing the indication overhead.

With reference to the third aspect, in some embodiments of the third aspect, the second indication information is further used to indicate a pattern (pattern) of the second resource, or the pattern of the second resource is predefined. Through the implementation mode, the appropriate resource pattern can be flexibly matched according to different service requirements, so that different service requirements are met.

With reference to the third aspect, in some embodiments of the third aspect, the second indication information is used to indicate a third index, the third index corresponding to the pattern of the second resource. By this embodiment, the pattern can be indicated in a quantized manner, thereby reducing the indication overhead.

With reference to the third aspect, in certain embodiments of the third aspect, the second indication information is used to indicate a time domain scaling factor and/or a frequency domain scaling factor of the second resource with respect to the first resource. This embodiment may be understood as indicating a change of the second resource pattern relative to the first resource pattern, thereby enabling to flexibly indicate a more diverse resource pattern with a lower indication overhead.

With reference to the third aspect, in certain embodiments of the third aspect, the second indication information is used to indicate a fourth index corresponding to a time domain scaling factor and/or a frequency domain scaling factor of the second resource with respect to the first resource. By this embodiment, the time domain scaling coefficients and/or the frequency domain scaling coefficients can be indicated in a quantized manner, thereby reducing the indication overhead.

With reference to the third aspect, in some embodiments of the third aspect, the second indication information is used to indicate a plurality of second resources and is used to indicate a pattern of the second resources. Through the implementation mode, the number of the second resources can be increased, and the appropriate resource patterns can be flexibly matched according to different service requirements, so that the transmission reliability of data borne on the second resources can be improved while different service requirements are met.

With reference to the third aspect, in some embodiments of the third aspect, the control information includes first indication information indicating the first resource, or the control information includes second indication information indicating the second resource, and the second resource has a corresponding relationship with the first resource. The correspondence may be predefined or may be configured by the network device. This embodiment can reduce the indication information in the control information, thereby reducing the indication overhead.

With reference to the third aspect, in certain embodiments of the third aspect, there is a predefined offset between the second resource and the first resource. The offset includes one or more of a time domain offset, a frequency domain offset, a code domain offset, or a spatial offset. By the method and the device, the terminal can quickly obtain the second resource after obtaining the first resource, so that the processing time delay and the processing complexity of the terminal are reduced.

With reference to the third aspect, in some embodiments of the third aspect, there is a correspondence between the number of the second resources or the number of repetitions of the second resources and the size of the first resources. By the implementation method, the terminal can quickly obtain the number of the second resources or the repetition times of the second resources after obtaining the size of the first resources, so that the processing time delay and the processing complexity of the terminal are reduced.

With reference to the third aspect, in some embodiments of the third aspect, the pattern of the second resource corresponds to the pattern of the first resource. By the method and the terminal, the terminal can quickly obtain the pattern of the second resource after obtaining the pattern of the first resource, so that the processing time delay and the processing complexity of the terminal are reduced.

With reference to the third aspect, in some embodiments of the third aspect, the control information further includes third indication information. The third indication information is used for indicating the preprocessing of the data, and the preprocessing comprises symbol-level equalization and/or symbol decision. The influence of channel frequency selectivity on data reception can be reduced by retransmitting the data through symbol-level equalization and/or symbol decision, so that the reliability of data reception is improved.

With reference to the third aspect, in some embodiments of the third aspect, a scheduling request from the first terminal is received, and the control information is sent to the first terminal and the second terminal according to the scheduling request. The implementation method can initiate joint scheduling of terminal cooperative communication based on the request of the terminal, thereby more reasonably configuring scheduling resources and optimizing communication performance.

In a fourth aspect, an embodiment of the present application provides an apparatus, which may implement the method in the first aspect or any one of the possible implementation manners of the first aspect. The apparatus comprises corresponding units or means for performing the above-described method. The means comprising may be implemented by software and/or hardware means. The device may be, for example, a terminal, or a chip, a chip system, a processor, or the like that can support the terminal to implement the method.

In a fifth aspect, embodiments of the present application provide an apparatus, which may implement the method in the second aspect or any one of the possible implementation manners of the second aspect. The apparatus comprises corresponding units or means for performing the above-described method. The means comprising may be implemented by software and/or hardware means. The device may be, for example, a terminal, or a chip, a chip system, a processor, or the like that can support the terminal to implement the method.

In a sixth aspect, an embodiment of the present application provides an apparatus, which may implement the method in the third aspect or any one of the possible implementation manners of the third aspect. The apparatus comprises corresponding units or means for performing the above-described method. The means comprising may be implemented by software and/or hardware means. The apparatus may be, for example, a network device, or a chip, a chip system, a processor, or the like that can support the network device to implement the method described above.

In a seventh aspect, an embodiment of the present application provides an apparatus, including: a processor coupled to a memory, the memory being configured to store a program or instructions that, when executed by the processor, cause the apparatus to perform the method of the first aspect, or any of the possible implementations of the first aspect.

In an eighth aspect, an embodiment of the present application provides an apparatus, including: a processor coupled to a memory, the memory being configured to store a program or instructions that, when executed by the processor, cause the apparatus to perform the method of the second aspect described above, or any one of the possible embodiments of the second aspect.

In a ninth aspect, an embodiment of the present application provides an apparatus, including: a processor coupled to a memory, the memory storing a program or instructions that, when executed by the processor, cause the apparatus to perform the method of the third aspect described above, or any one of the possible embodiments of the third aspect.

In a tenth aspect, embodiments of the present application provide a storage medium having a computer program or instructions stored thereon, where the computer program or instructions, when executed, cause a computer to perform the method of the first aspect or any one of the possible implementation manners of the first aspect.

In an eleventh aspect, embodiments of the present application provide a storage medium having a computer program or instructions stored thereon, which when executed, cause a computer to perform the method described in the second aspect, or any one of the possible implementations of the second aspect.

In a twelfth aspect, embodiments of the present application provide a storage medium having a computer program or instructions stored thereon, where the computer program or instructions, when executed, cause a computer to perform the method described in the third aspect or any one of the possible implementation manners of the third aspect.

In a thirteenth aspect, the present application provides a computer program product, which includes computer program code, when the computer program code runs on a computer, the computer executes the method described in the first aspect or any one of the possible implementation manners of the first aspect.

In a fourteenth aspect, the present application provides a computer program product, which includes computer program code, when the computer program code runs on a computer, the computer executes the method described in the second aspect or any one of the possible implementation manners of the second aspect.

In a fifteenth aspect, the present application provides a computer program product, which includes computer program code, when the computer program code runs on a computer, the computer is caused to execute the method described in the third aspect or any one of the possible implementation manners of the third aspect.

In a sixteenth aspect, an embodiment of the present application provides a chip, including: a processor coupled to a memory, the memory being configured to store a program or instructions that, when executed by the processor, cause the chip to implement the method of the first aspect, or any of the possible implementations of the first aspect.

In a seventeenth aspect, an embodiment of the present application provides a chip, including: a processor coupled to a memory for storing a program or instructions which, when executed by the processor, causes the chip to carry out the method of the second aspect described above, or any one of the possible embodiments of the second aspect.

In an eighteenth aspect, an embodiment of the present application provides a chip, including: a processor coupled to a memory, the memory being configured to store a program or instructions that, when executed by the processor, cause the chip to implement the method of the third aspect described above, or any one of the possible embodiments of the third aspect.

In a nineteenth aspect, an embodiment of the present application provides a communication system, including: the apparatus of the fourth aspect, the apparatus of the fifth aspect, and the apparatus of the sixth aspect.

In a twentieth aspect, an embodiment of the present application provides a communication system, including: the apparatus of the seventh aspect, the apparatus of the eighth aspect, and the apparatus of the ninth aspect.

Drawings

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

fig. 2 shows an exemplary architecture of a communication system;

FIG. 3 is a schematic diagram of a communication scenario applicable to embodiments of the present application;

fig. 4 is an interaction diagram illustrating a communication method provided by an embodiment of the present application;

5A-5F illustrate schematic diagrams of several first resources and second resources in embodiments of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 8 is a schematic diagram of another communication device according to an embodiment of the present application.

Detailed Description

The method and the device provided by the embodiment of the application can be applied to a communication system. Fig. 1 shows a schematic diagram of a communication system. The communication system 100 includes one or more network devices (shown as network device 110 and network device 120), and one or more terminals in communication with the one or more network devices.

Terminals

114 and 118 are shown in fig. 1 as communicating with network device 110, and

terminals

124 and 128 are shown as communicating with network device 120. It is to be understood that network devices and terminals may also be referred to as communication devices.

The techniques described in embodiments of the present invention may be used in various communication systems, such as fourth generation (4)^thgeneration, 4G) communication system, 4.5G communication system, 5G communication system, a system in which a plurality of communication systems are integrated, or a communication system that evolves in the future. Such as Long Term Evolution (LTE) systems, New Radio (NR) systems, wireless fidelity (WiFi) systems, and 3rd generation partnership project (3 GPP) related communication systems, and the like, as well as other such communication systems.

Fig. 2 shows an exemplary schematic diagram of a possible architecture of a communication system, in which a network device in a Radio Access Network (RAN) shown in fig. 2 is a base station (e.g., a gNodeB or a gNB) of a Centralized Unit (CU) and Distributed Unit (DU) separated architecture. The RAN may be connected to a core network (e.g., LTE core network, 5G core network, etc.). CU and DU can be understood as the division of the base stations from a logical functional point of view. CUs and DUs may be physically separate or deployed together. A plurality of DUs can share one CU. A DU may also connect multiple CUs (not shown). The CU and DU may be connected via an interface, such as an F1 interface. CUs and DUs may be partitioned according to protocol layers of the wireless network. For example, functions of a Packet Data Convergence Protocol (PDCP) layer and a Radio Resource Control (RRC) layer are provided in the CU, and functions of a Radio Link Control (RLC), a Medium Access Control (MAC) layer, a physical (physical) layer, and the like are provided in the DU. It is to be understood that the division of CU and DU processing functions according to such protocol layers is merely an example, and may be performed in other manners. For example, a CU or DU may be partitioned to have more protocol layer functionality. For example, a CU or DU may also be divided into partial processing functions with protocol layers. In one design, some of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are set in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are set in the DU. In another design, the functions of a CU or DU may also be divided according to traffic type or other system requirements. For example, dividing by time delay, setting the function that processing time needs to meet the time delay requirement in DU, and setting the function that does not need to meet the time delay requirement in CU. The network architecture shown in fig. 2 may be applied to a 5G communication system, which may also share one or more components or resources with an LTE system. In another design, a CU may also have one or more functions of the core network. One or more CUs may be centrally located or separately located. For example, the CUs may be located on the network side to facilitate centralized management. The DU may have multiple rf functions, or may have a remote rf function.

The CU functions may be implemented by one entity, or the Control Plane (CP) and the User Plane (UP) may be further separated, that is, the control plane (CU-CP) and the user plane (CU-UP) of the CU may be implemented by different functional entities, and the CU-CP and the CU-UP may be coupled with the DU to jointly perform the functions of the base station.

It is understood that the embodiments provided in the present application are also applicable to an architecture in which CU and DU are not separated.

In this application, the network device may be any device having a wireless transceiving function. Including but not limited to: an evolved Node B (NodeB or eNB or e-NodeB) in LTE, a base station (gnnodeb or gNB) or a transmission point (TRP) in NR, a base station for subsequent evolution in 3GPP, an access Node in WiFi system, a wireless relay Node, a wireless backhaul Node, and the like. The base station may be: macro base stations, micro base stations, pico base stations, small stations, relay stations, or balloon stations, etc. Multiple base stations may support the same technology network as mentioned above, or different technologies networks as mentioned above. The base station may contain one or more co-sited or non co-sited TRPs. The network device may also be a wireless controller, CU, and/or DU in a Cloud Radio Access Network (CRAN) scenario. The network device may also be a server, a wearable device, a machine communication device, or an in-vehicle device, etc. The following description will take a network device as an example of a base station. The multiple network devices may be base stations of the same type or different types. The base station may communicate with the terminal device, and may also communicate with the terminal device through the relay station. The terminal device may communicate with a plurality of base stations of different technologies, for example, the terminal device may communicate with a base station supporting an LTE network, may communicate with a base station supporting a 5G network, and may support dual connectivity with the base station of the LTE network and the base station of the 5G network.

The terminal is a device with a wireless transceiving function, can be deployed on land, and comprises an indoor or outdoor terminal, a handheld terminal, a wearable terminal or a vehicle-mounted terminal; can also be deployed on the water surface (such as a ship and the like); and may also be deployed in the air (e.g., airplanes, balloons, satellites, etc.). The terminal may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a terminal in industrial control (industrial control), a vehicle-mounted terminal device, a terminal in self driving (self driving), a terminal in auxiliary driving, a terminal in remote medical (remote medical), a terminal in smart grid (smart grid), a terminal in transportation safety (transportation safety), a terminal in smart city (smart city), a terminal in smart home (smart home), and the like. The embodiments of the present application do not limit the application scenarios. A terminal may also be referred to as a terminal device, User Equipment (UE), access terminal device, in-vehicle terminal, industrial control terminal, UE unit, UE station, mobile station, remote terminal device, mobile device, UE terminal device, wireless communication device, machine terminal, UE agent, or UE device, among others. The terminals may be fixed or mobile.

By way of example, and not limitation, in the present application, the terminal may 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.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. 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 functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

In the application, the terminal may be a terminal in an internet of things (IoT) system, the IoT is an important component of future information technology development, and the main technical feature of the IoT is to connect an article with a network through a communication technology, so as to implement an intelligent network of human-computer interconnection and article-object interconnection. The terminal in the present application may be a terminal in Machine Type Communication (MTC). The terminal of the present application may be 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 module, on-board component, on-board chip, or on-board unit. Therefore, the embodiments of the present application may be applied to vehicle networking, such as vehicle to outside (V2X), long term evolution (LTE-V) for vehicle to vehicle communication, vehicle to vehicle (V2V), and the like.

In a wireless communication network, one terminal may forward data to a network device by means of another terminal, which may also be referred to as terminal cooperation. However, the network device may generate a signaling storm when controlling data transmission of the two terminals, thereby increasing communication overhead. For example, the network device needs to send signaling for data scheduling to two terminals respectively, and one terminal needs to send signaling for data scheduling to the other terminal when sending data to the other terminal, and when the number of terminals participating in terminal cooperation increases, the number of signaling needed also increases accordingly. Therefore, how to reduce the overhead in the terminal cooperation communication becomes a problem to be solved urgently.

In the method, a side link between terminals and an uplink between a terminal and a network device are controlled through control information of joint scheduling, so that signaling overhead during terminal cooperative communication can be reduced.

The physical resources (also referred to as resources for short) in the present application may include one or more of time domain resources, frequency domain resources, code domain resources, or spatial domain resources. For example, the time domain resource included in the physical resource may include at least one frame, at least one sub-frame, at least one slot (slot), at least one mini-slot (mini-slot), at least one time unit, or at least one time domain symbol. For example, the frequency domain resources included in the physical resources may include at least one carrier (carrier), at least one Component Carrier (CC), at least one bandwidth part (BWP), at least one Resource Block Group (RBG), at least one physical resource block group (PRG), at least one Resource Block (RB), or at least one subcarrier (sub-carrier, SC), and the like. For example, the spatial domain resources included in the physical resources may include at least one beam, at least one port, at least one antenna port, or at least one layer/spatial layer, etc. For example, the code domain resource included in the physical resource may include at least one Orthogonal Cover Code (OCC), at least one non-orthogonal multiple access (NOMA) code, and the like.

It is to be understood that the physical resources described above may be physical resources of a baseband, which may be used by a baseband chip. The physical resources may also be physical resources of the air interface. The physical resource may also be an intermediate frequency or radio frequency physical resource.

The technical solution of the present application is described in detail below with reference to specific embodiments and accompanying drawings. The following examples and implementations may be combined with each other and may not be repeated in some examples for the same or similar concepts or processes. It will be appreciated that the functions explained herein may be implemented by means of individual hardware circuits, by means of software running in conjunction with a processor/microprocessor or general purpose computer, by means of an application specific integrated circuit, and/or by means of one or more digital signal processors. When described as a method, the present application may also be implemented in a computer processor and a memory coupled to the processor.

For ease of understanding the embodiments in the present application, some concepts or terms referred to in the present application will be first briefly described.

Downlink (DL): a link from the network device to the terminal.

Uplink (UL): a link from the terminal to the network device.

Sidelink (SL): a link from one terminal to another terminal or terminals. May also be referred to as a side link, a device to device (D2D) link, a vehicle to all (V2X) link, or a vehicle to vehicle (V2V) link.

Terminal grouping: it may also be referred to as terminal clustering, terminal grouping, or terminal clustering, etc. Two or more terminals form a terminal group (which may also be referred to as a terminal cluster, a terminal cooperation group, or a terminal cluster), and the terminal group includes a cooperative terminal (which may also be referred to as a cluster head terminal, a cluster proxy terminal, or cooperative User Equipment (UE), etc.) and one or more target terminals (which may also be referred to as cluster member terminals, cluster common terminals, or Target User Equipment (TUE)). The terminals in the terminal group can communicate with the network equipment in a terminal cooperation mode.

And (4) CUE: the UE in the terminal group, which is in direct communication with the network device, can assist the TUE in the terminal group to communicate with the network device.

TUE: and the UE in the terminal group communicates with the network equipment by means of the CUE.

The terminal group, CUE and TUE are further explained by taking FIG. 3 as an example. Fig. 3 presents a schematic view of a communication scenario 300. Included in the communication scenario 300 illustrated in fig. 3 are a network device 310, a terminal 320, and a terminal 330. The terminal 320 and the terminal 330 form a terminal group 340, the terminal 320 is a CUE in the terminal group 340, and the terminal 330 is a TUE in the terminal group 330. The terminal 320 CUE can communicate directly with the network device 310 and the terminal 330 TUE communicates with the network device 310 via the terminal 320. It is to be understood that fig. 3 is only schematically illustrated by an example of a terminal group and a TUE included in the terminal group, and the application is not limited to the number of terminal groups and the number of TUEs in the terminal group.

The terminal group communication (or referred to as terminal cooperation communication) scenario illustrated in fig. 3 may be adapted to certain communication needs. For example, when the terminal 330 TUE is an energy consumption sensitive terminal and the terminal 320 CUE is an energy consumption insensitive terminal, the terminal 320 CUE and the terminal 330 TUE may form a terminal group 340, and the terminal 330 TUE communicates with the network device 310 through the terminal 320 CUE. Because the terminal 320 CUE and the terminal 330 TUE in the terminal group 340 are generally closer to each other, the energy consumption of the terminal 330 TUE is lower when the terminal 320 CUE communicates with the terminal 330 TUE, so that the service life of the terminal 330 TUE sensitive to energy consumption can be prolonged.

Fig. 4 is an interaction diagram of a communication method 400 according to an embodiment of the present application. The communication method is illustrated in fig. 4 by taking the first terminal, the second terminal and the network device as the execution subject of the interaction schematic, but the application does not limit the execution subject of the interaction schematic. For example, the network device in fig. 4 may also be a chip, a chip system, a processor, or the like, which supports the network device to implement the method. For example, the first terminal in fig. 4 may also be a chip, a chip system, or a processor, etc. that supports the first terminal to implement the method. For example, the second terminal in fig. 4 may also be a chip, a chip system, a processor, or the like, which supports the second terminal to implement the method. As shown in fig. 4, the method 400 of this embodiment may include

portions

410, 420, and 430:

and a part 410: the network equipment sends control information, and the first terminal and the second terminal receive the control information. Optionally, the network device sends the control information in a multicast manner. Optionally, the first terminal and the second terminal belong to the same terminal group. Further optionally, the first terminal is a TUE and the second terminal is a CUE. The description of the terminal group, TUE and CUE may refer to the description of the terminal group, TUE and CUE in fig. 3. Optionally, the first terminal is an energy consumption sensitive terminal, and the second terminal is an energy consumption insensitive terminal. The control information may be understood as a kind of joint scheduling control information, which may be used for scheduling both the sidelink data between the first terminal and the second terminal and the uplink data between the second terminal and the network device.

Part 420: the first terminal transmits data on the first resource according to the control information, and the second terminal receives the data from the first terminal on the first resource according to the control information. Optionally, the first terminal transmits the data on a sidelink channel, and the second terminal receives the data on the sidelink channel, where the sidelink channel may be, for example, a physical sidelink shared channel (psch), a Physical Sidelink Discovery Channel (PSDCH), or the like.

430 part: the second terminal sends the data on the second resource according to the control information, and the network equipment receives the data from the second terminal on the second resource. Optionally, the second terminal transmits the data on an uplink channel, and the network device receives the data on the uplink channel, where the uplink channel may be, for example, a Physical Uplink Shared Channel (PUSCH) or the like. The second terminal in part 430 sends the data according to the control information, and may be understood as the second terminal forwarding the data from the first terminal to the network device according to the control information.

Optionally, the control information in the method 400 is carried in a physical channel, which may be, for example, a Physical Downlink Control Channel (PDCCH) or the like. The control information can be issued more quickly through the physical channel, so that the time delay in the terminal cooperation communication process can be reduced.

Optionally, the control information in the method 400 is scrambled by a Radio Network Temporary Identifier (RNTI) which is one of the following:

group RNTI: the group RNTI is used to identify a terminal group. For example, the group RNTI identification may be used to identify a group of terminals including the first terminal and the second terminal. The group of RNTIs may be configured for the first terminal and/or the second terminal by the network device, determined and notified to the first terminal by the second terminal, or determined and notified to the second terminal by the first terminal. In part 410, the first terminal and/or the second terminal may descramble the control information using the set of RNTIs when receiving the control information, and further perform part 420 and/or part 430. For example, after the first terminal uses the group of RNTIs to descramble the control information successfully, it can know that the control information is used for joint scheduling, and send the data to the second terminal through the sidelink. For another example, after the second terminal successfully descrambles the control information using the group of RNTIs, it may know that the control information is used for joint scheduling, and receive the data from the first terminal and forward the data to the network device.

Cell RNTI (cell RNTI, C-RNTI) of the first terminal: the C-RNTI of the first terminal is used for identifying the first terminal. The first terminal may inform the second terminal of the C-RNTI of the first terminal through a sidelink, or the network device may inform the second terminal of the C-RNTI of the first terminal through a downlink. In part 410, the first terminal and/or the second terminal may descramble the control information using the C-RNTI of the first terminal when receiving the control information, and further perform part 420 and/or part 430. For example, when the first terminal does not initiate the uplink scheduling request, after the first terminal uses the C-RNTI of the first terminal to descramble the control information successfully, it can be known that the control information is used for joint scheduling, and the data is sent to the second terminal through the sidelink. For another example, after the second terminal uses the C-RNTI of the first terminal to descramble the control information successfully, it may know that the control information is used for joint scheduling, and receive the data from the first terminal and forward the data to the network device.

C-RNTI of the second terminal: the C-RNTI of the second terminal is used for identifying the second terminal. The second terminal may inform the first terminal of the C-RNTI of the second terminal through a sidelink, or the network device may inform the first terminal of the C-RNTI of the second terminal through a downlink. In part 410, the first terminal and/or the second terminal may descramble the control information using the C-RNTI of the second terminal when receiving the control information, and further perform part 420 and/or part 430. For example, after the first terminal uses the C-RNTI of the second terminal to descramble the control information successfully, the first terminal can know that the control information is used for joint scheduling, and send the data to the second terminal through the sidelink. For another example, when the second terminal does not initiate the uplink scheduling request, after the second terminal uses the C-RNTI of the second terminal to descramble the control information successfully, it may be known that the control information is used for joint scheduling, and receive the data from the first terminal and forward the data to the network device.

The control information is scrambled by the RNTI, so that the terminal can correctly identify the control information.

Optionally, in part 420, the first terminal sends data to the second terminal in an authorization-free manner on the first resource according to the control information. Optionally, in part 420, the second terminal receives the data from the first terminal in an unauthorized manner on the first resource according to the control information. Optionally, in part 430, the second terminal sends the data to the network device in an authorization-free manner on the second resource according to the control information. The method can activate the authorization-free communication of the sidelink and/or the uplink through one piece of control information, thereby simplifying the process of the authorization-free communication and reducing the communication time delay.

There are many possible embodiments of the control information in the method 400, and the first terminal may obtain the first resource through the control information, and the second terminal may obtain the first resource and the second resource through the control information. A possible implementation of this control information is explained below in connection with the examples of fig. 5A-5F.

Several examples of the first resource and the second resource are illustrated in fig. 5A to 5F by using the time domain resource and the frequency domain resource as examples, but the application does not limit the physical resources (e.g., code domain resource and/or spatial domain resource) of other dimensions. A small square box illustrated in fig. 5A-5F represents a resource unit, a resource unit representing at least one time unit in time and at least one frequency unit in frequency. Wherein the time unit may be a frame, a subframe, a slot, a minislot, or a time domain symbol, and the frequency unit may be a carrier, a CC, a BWP, an RBG, a PRG, an RB, or an SC.

In one possible implementation of the control information in the method 400, the control information includes first indication information and second indication information, wherein the first indication information is used for indicating the first resource, and the second indication information is used for indicating an offset between the second resource and the first resource (which may also be understood as an offset of the second resource with respect to the first resource). Optionally, the offset includes one or more of a time domain offset, a frequency domain offset, a code domain offset, or a spatial offset.

The time domain offset in this application may be understood as an offset in time. In this application, a frequency domain shift is understood to mean a shift in frequency. In this application, a code domain offset is understood to be a shift (e.g. a cyclic shift) of a codeword sequence, or an increase or decrease in a codeword parameter. The spatial offset in this application may be understood as an offset of a beam, or an offset of an antenna port.

This embodiment may be understood as indicating the relative amount between the second resource and the first resource, thereby enabling a reduction of the indication overhead.

It is to be understood that the offset between the second resource and the first resource in this application may refer to one of the following:

● an offset between a starting resource of the second resource and a starting resource of the first resource;

● an offset between a starting resource of the second resource and an ending resource of the first resource;

● an offset between an ending resource of the second resource and a starting resource of the first resource;

● an offset between the ending resource of the second resource and the ending resource of the first resource.

For convenience of description, the following description will take the offset between the second resource and the first resource as the offset between the starting resource of the second resource and the starting resource of the first resource.

Taking the first resource and the second resource illustrated in fig. 5A as an example, the first resource occupies 9 resource units (illustrated as R1) illustrated in fig. 5A, and the second resource occupies the other 9 resource units (illustrated as R2) illustrated in fig. 5A. The time domain offset between R2 and R1 is 6 resource units and the frequency domain offset between R2 and R1 is 6 resource units. The first instruction information indicates R1, and the second instruction information indicates one of the following:

● R2 and R1. The frequency domain offset between R2 and R1 in this indicative manner is predefined.

● frequency domain offset between R2 and R1. The time domain offset between R2 and R1 in this indication mode is predefined.

● time domain offset and frequency domain offset between R2 and R1.

In a possible implementation manner that the second indication information indicates an offset between the second resource and the first resource, the second indication information is used for indicating a value of the offset between the second resource and the first resource. It can be understood that, in this application, a value of the offset between the second resource and the first resource may be a positive number, a negative number, or zero, and this application does not limit this. By the embodiment, the offset value can be more accurately indicated, so that physical resources can be more fully utilized.

Taking the first resource and the second resource illustrated in fig. 5A as an example, the second indication information may indicate one of the following:

● the time domain offset between R2 and R1 has a value of 6. The frequency domain offset between R2 and R1 in this indicative manner is predefined.

● the frequency domain offset between R2 and R1 has a value of 6. The time domain offset between R2 and R1 in this indication mode is predefined.

● the time domain offset and the frequency domain offset between R2 and R1 take on values of 6 and 6, respectively.

In another possible implementation manner, where the second indication information indicates an offset between the second resource and the first resource, the second indication information is used to indicate a first index, and the first index corresponds to a value of the offset between the second resource and the first resource. The corresponding relationship between the value of the offset between the second resource and the first index may be predefined, or may be configured by the network device (for example, configured by the network device for the second terminal). By this embodiment, the offset can be indicated in a quantized manner, thereby reducing the indication overhead.

Taking the first resource and the second resource illustrated in fig. 5A and table 1 as an example, the second indication information may indicate one of the following:

● the first index corresponding to the value of the time domain offset between R2 and R1 is 2. The frequency domain offset between R2 and R1 in this indicative manner is predefined.

● the first index corresponding to the value of the frequency domain offset between R2 and R1 is 2. The time domain offset between R2 and R1 in this indication mode is predefined.

● the first indices corresponding to the values of the time domain offset and the frequency domain offset between R2 and R1 are 2 and 2, respectively.

TABLE 1

First index	Value of offset
0	2
1	4
2	6
3	8

In an embodiment where the control information comprises the first indication information and the second indication information, optionally the second indication information is used to indicate a plurality of second resources, or the number of second resources or the number of repetitions of the second resources is predefined. The number of repetitions of the second resource may be understood as the number of second resources minus 1. The plurality of second resources in this embodiment may be a plurality of second resources continuous in the time domain, may be a plurality of second resources discontinuous in the time domain, may be a plurality of second resources continuous in the frequency domain, or may be a plurality of second resources discontinuous in the frequency domain. By the implementation mode, the number of the second resources can be increased, so that the transmission reliability of the data loaded on the second resources is improved.

Take the first resource and the second resource illustrated in fig. 5B as an example, wherein two second resources (illustrated by two bold boxes) consecutive in the time domain are illustrated in fig. 5B. The above-mentioned second indication information may be used to indicate two second resources in fig. 5B, or the number of second resources (i.e. 2) or the number of repetitions of the second resources (i.e. 1) in fig. 5B is predefined.

Take the first resource and the second resource illustrated in fig. 5C as an example, wherein two discontinuous second resources (shown by two bold boxes) in the time domain are illustrated in fig. 5C. The above-mentioned second indication information may be used to indicate two second resources in fig. 5C, or the number of second resources (i.e. 2) or the number of repetitions of the second resources (i.e. 1) in fig. 5C is predefined.

In a possible embodiment, the second indication information indicates a plurality of second resources, the second indication information is used for indicating the number of the second resources or for indicating the number of repetitions of the second resources. By the embodiment, the number of the second resources or the repetition times of the second resources can be more accurately indicated, so that the physical resources can be more fully utilized.

Taking the first resource and the second resource illustrated in fig. 5B or fig. 5C as an example, the second indication information indicates that the number of the second resources is 2, or the second indication information indicates that the repetition number of the second resource is 1.

In another possible embodiment, where the second indication information indicates a plurality of second resources, the second indication information is used to indicate a second index, and the second index corresponds to the number of the second resources or the number of repetitions of the second resources. The correspondence between the number of the second resources or the number of repetitions of the second resource and the second index may be predefined or may be configured by the network device (e.g., configured by the network device for the second terminal). By this embodiment, the number of second resources or the number of repetitions of the second resources can be indicated in a quantitative manner, thereby reducing the indication overhead.

Taking the first resource and the second resource illustrated in fig. 5B or fig. 5C and table 2 as an example, the second indication information may indicate that the second index corresponding to the number of the second resource is 0.

TABLE 2

Second index	Amount of second resource
0	2
1	4
2	6
3	8

Taking the first resource and the second resource illustrated in fig. 5B or fig. 5C and table 3 as an example, the second indication information may indicate that the second index corresponding to the repetition number of the second resource is 0.

TABLE 3

Second index	Number of repetitions of the second resource
0	1
1	3
2	5
3	7

In an embodiment where the control information includes the first indication information and the second indication information, optionally, the second indication information is also used to indicate a pattern (pattern) of the second resource, or the pattern of the second resource is predefined. The pattern of the second resource may be different from the pattern of the first resource, or may be the same as the pattern of the first resource, which is not limited in this application. Through the implementation mode, the appropriate resource pattern can be flexibly matched according to different service requirements, so that different service requirements are met.

Taking the first resource and the second resource illustrated in fig. 5D and 5E as an example, the resource pattern is represented by [ M, N ], where M represents the number of resource units in time and N represents the number of resource units in frequency. The patterns of the first resource in fig. 5D and 5E are [3,3 ]. The pattern of the second resource in fig. 5D is [1,9], and the pattern of the second resource occupies fewer resource units in time, so that the requirement of the low latency service can be met. The pattern of the second resource in fig. 5E is [9,1], and the pattern of the second resource occupies fewer resource units in frequency, thereby enabling the requirements of low-bandwidth or narrow-bandwidth services.

In a possible embodiment, the second indication information indicates a pattern of the second resource, the second indication information is used to indicate a third index, which corresponds to the pattern of the second resource. The correspondence of the pattern of the second resource to the third index may be predefined or may be configured by the network device (e.g., by the network device for the second terminal). By this embodiment, the pattern can be indicated in a quantized manner, thereby reducing the indication overhead.

Taking the first resource and the second resource illustrated in fig. 5D and table 4 as an example, the second indication information may indicate that the third index corresponding to the pattern of the second resource is 3.

Taking the first resource and the second resource illustrated in fig. 5E and table 4 as an example, the second indication information may indicate that the third index corresponding to the pattern of the second resource is 0.

TABLE 4

Third index	Pattern (D)
0	[9,1]
1	[3,3]
2	[1,9]
3	Reservation

In another possible implementation of the pattern of the second resources is indicated by the second indication information, the second indication information is used to indicate time domain scaling coefficients and/or frequency domain scaling coefficients of the second resources relative to the first resources. The number of resource units included in the first resource may be the same as or different from the number of resource units included in the second resource, and the application does not limit this. For convenience of description, the following description will be given by taking as an example that the number of resource units included in the first resource is the same as the number of resource units included in the second resource. This embodiment may be understood as indicating a change of the second resource pattern relative to the first resource pattern, thereby enabling to flexibly indicate a more diverse resource pattern with a lower indication overhead.

Taking the first resource and the second resource illustrated in fig. 5D as an example, the second indication information may indicate one of the following:

● the time domain scaling factor of the second resource relative to the first resource is 1/3, representing that the number of resource units of the second resource is 1/3 the number of resource units of the first resource in time;

● the frequency domain scaling factor of the second resource relative to the first resource is 3, indicating that the number of resource elements of the second resource is 3 times the number of resource elements of the first resource in frequency;

● the time domain scaling factor for the second resource relative to the first resource is 1/3 and the frequency domain scaling factor for the second resource relative to the first resource is 3.

Taking the first resource and the second resource illustrated in fig. 5E as an example, the second indication information may indicate one of the following:

● the time domain scaling factor of the second resource relative to the first resource is 3, indicating that the number of resource elements of the second resource is 3 times the number of resource elements of the first resource in time;

● the frequency domain scaling factor of the second resource relative to the first resource is 1/3, which indicates that the number of resource units of the second resource is 1/3 the number of resource units of the first resource in frequency;

● the time domain scaling factor for the second resource relative to the first resource is 3 and the frequency domain scaling factor for the second resource relative to the first resource is 1/3.

In another possible implementation of the pattern of the second resources is indicated by the second indication information, the second indication information is used to indicate a fourth index, which corresponds to a time domain scaling factor and/or a frequency domain scaling factor of the second resources with respect to the first resources. The correspondence between the time domain scaling factor and/or the frequency domain scaling factor of the second resource with respect to the first resource and the fourth index may be predefined or may be configured by the network device (e.g., by the network device for the second terminal). By this embodiment, the time domain scaling coefficients and/or the frequency domain scaling coefficients can be indicated in a quantized manner, thereby reducing the indication overhead.

Taking the first resource and the second resource illustrated in fig. 5D and table 5 as an example, the second indication information may indicate that the fourth index corresponding to the time domain scaling factor of the second resource with respect to the first resource is 0.

TABLE 5

Fourth index	Time domain scaling factor
0	1/3

1	3
2	1/2
3	2

Taking the first resource and the second resource illustrated in fig. 5D and table 6 as an example, the second indication information may indicate that the fourth index corresponding to the frequency domain scaling factor of the second resource with respect to the first resource is 1.

TABLE 6

Fourth index	Frequency domain scaling factor
0	1/3
1	3
2	1/2
3	2

Taking the first resource and the second resource illustrated in fig. 5E and table 5 as an example, the second indication information may indicate that the fourth index corresponding to the time domain scaling factor of the second resource relative to the first resource is 1.

Taking the first resource and the second resource illustrated in fig. 5E and table 6 as an example, the second indication information may indicate that the fourth index corresponding to the frequency domain scaling factor of the second resource with respect to the first resource is 0.

In an embodiment where the control information includes the first indication information and the second indication information, optionally, the second indication information is used for indicating a plurality of second resources and for indicating a pattern of the second resources. Through the implementation mode, the number of the second resources can be increased, and the appropriate resource patterns can be flexibly matched according to different service requirements, so that the transmission reliability of data borne on the second resources can be improved while different service requirements are met. For a method for specifically indicating a plurality of second resources and indicating a second resource pattern, reference may be made to the description of the previous embodiment, which is not repeated herein.

Taking the first resource and the second resource illustrated in fig. 5F as an example, the second indication information may be used to indicate two second resources, and a pattern of one second resource is [1,9 ].

In one possible embodiment, where the pattern of the second resources is predefined, the time domain scaling factor and/or the frequency domain scaling factor of the second resources relative to the first resources is predefined. By the embodiment, the indication of the time domain scaling coefficient and/or the frequency domain scaling coefficient is not needed, so that the indication overhead is reduced.

In another possible implementation of the control information in the method 400, the control information includes first indication information for indicating the first resource, or the control information includes second indication information for indicating the second resource, and the second resource has a corresponding relationship with the first resource. The correspondence may be predefined or may be configured by the network device (e.g., by the network device for the second terminal). When the control information includes first indication information indicating the first resource, the second terminal may obtain the first resource and obtain the second resource through the first resource and a correspondence relationship existing between the second resource and the first resource. When the control information includes second indication information indicating the second resource, the second terminal may obtain the second resource and obtain the first resource through the second resource and a correspondence relationship existing between the second resource and the first resource. This embodiment can reduce the indication information in the control information, thereby reducing the indication overhead.

In an embodiment where the second resource has a correspondence with the first resource, optionally, there is a predefined offset between the second resource and the first resource. The offset includes one or more of a time domain offset, a frequency domain offset, a code domain offset, or a spatial offset. The size of the first resource may be less than or equal to the size of the second resource, e.g., the size of the second resource is an integer multiple of the size of the first resource. The size of the first resource may also be larger than the size of the second resource, e.g. the size of the first resource is an integer multiple of the size of the second resource. By the method and the device, the terminal can quickly obtain the second resource after obtaining the first resource, so that the processing time delay and the processing complexity of the terminal are reduced.

In the embodiment where the second resource and the first resource have a corresponding relationship, optionally, the number of the second resources or the number of times of repetition of the second resource has a corresponding relationship with the size of the first resource. For example, the number of the second resources (or the number of repetitions of the second resources) is in a direct relationship with the size of the first resources, or the number of the second resources (or the number of repetitions of the second resources) is in an inverse relationship with the size of the first resources. The number of the second resource (or the number of times the second resource is repeated) and the size of the first resource may have other relationships (for example, a linear relationship, an exponential relationship, a logarithmic relationship, or the like), which is not limited in this application. By the implementation method, the terminal can quickly obtain the number of the second resources or the repetition times of the second resources after obtaining the size of the first resources, so that the processing time delay and the processing complexity of the terminal are reduced.

In an embodiment where the second resource corresponds to the first resource, the pattern of the second resource corresponds to the pattern of the first resource. For example, the second resource has a predefined time domain scaling factor and/or frequency domain scaling factor relative to the first resource. By the method and the terminal, the terminal can quickly obtain the pattern of the second resource after obtaining the pattern of the first resource, so that the processing time delay and the processing complexity of the terminal are reduced.

In yet another possible implementation of the control information in the method 400, the control information includes third indication information. And the second terminal preprocesses the data according to the third indication information before sending the data to the network equipment, wherein the preprocessing comprises symbol-level equalization and/or symbol decision. The influence of channel frequency selectivity on data reception can be reduced by retransmitting the data through symbol-level equalization and/or symbol decision, so that the reliability of data reception is improved.

Method 400 may also include optional 440: the first terminal sends a scheduling request to the network equipment, and the network equipment receives the scheduling request. The scheduling request is used for requesting the network device to perform terminal cooperation communication. The network device transmits 410 the control information in the portion to the first terminal and the second terminal according to the scheduling request. The implementation method can initiate joint scheduling of terminal cooperative communication based on the request of the terminal, thereby more reasonably configuring scheduling resources and optimizing communication performance.

In the method 400, the first terminal and/or the second terminal may optionally determine 410 the role of the control information in the portion in a variety of ways. The first terminal and/or the second terminal can know whether the control information is used for joint scheduling of the sidelink and the uplink (namely, for uplink scheduling and sidelink scheduling) or independent scheduling of the sidelink and the uplink (namely, for uplink scheduling or sidelink scheduling) through determining the action of the control information, so that the situation that the joint scheduling and the non-joint scheduling coexist can be adapted, and backward compatibility is met.

In one possible embodiment of determining the role of the control information, the first terminal and/or the second terminal determines the control information to be used for joint scheduling or independent scheduling according to the RNTI. For example, when the first terminal and/or the second terminal successfully descramble the control information using the first RNTI, determining that the control information is used for joint scheduling; when the first terminal and/or the second terminal successfully descramble the control information by using the second RNTI, determining that the control information is used for independent scheduling; wherein the first RNTI and the second RNTI are different RNTIs.

In another possible implementation of determining the role of the control information, the first terminal and/or the second terminal determines the control information to be used for joint scheduling or independent scheduling according to a format (format) of the control information. For example, when the format of the control information is a first format, the first terminal and/or the second terminal determines that the control information is used for joint scheduling; when the format of the control information is a second format, the first terminal and/or the second terminal determines that the control information is used for independent scheduling; wherein the first format and the second format are different formats. It is understood that different formats may refer to different contents contained in the control information, or may refer to different payload sizes (payload sizes) of the control information.

In another possible implementation of determining the role of the control information, the first terminal and/or the second terminal determines the control information to be used for joint scheduling or independent scheduling according to a control resource set (CORESET) carrying the control information. For example, when the control information is carried by the first CORESET, the first terminal and/or the second terminal determines that the control information is used for joint scheduling; when the control information is carried by the second CORESET, the first terminal and/or the second terminal determines that the control information is used for independent scheduling; wherein the first CORESET and the second CORESET are different CORESETs. It is understood that the physical resources contained by different CORESET may not overlap at all (i.e. the physical resources contained by different CORESET may be completely different), or the physical resources contained by different CORESET may overlap partially (i.e. the physical resources contained by different CORESET may be partially the same).

In another possible implementation manner of determining the role of the control information, the first terminal and/or the second terminal determines, according to a value indicated by the first indication field in the control information, that the control information is used for joint scheduling or independent scheduling. For example, when a first indication field in the control information indicates a first value, the first terminal and/or the second terminal determines that the control information is used for joint scheduling; when a first indication domain in the control information indicates a second value, the first terminal and/or the second terminal determines that the control information is used for independent scheduling; wherein the first value and the second value are different values. Optionally, the first indication field in the control information may be one or more of the following indication fields: the control information format indication field, the frequency domain resource allocation field, the time domain resource allocation field, the modulation and coding scheme indication field, the indication field containing the first indication information, the indication field containing the second indication information, or the indication field newly introduced in the control information.

Corresponding to the method provided by the above method embodiment, the embodiment of the present application further provides a corresponding apparatus, which includes a module for executing the above embodiment. The module may be software, hardware, or a combination of software and hardware.

Fig. 6 shows a schematic diagram of the structure of an apparatus. The apparatus 600 may be a network device, a terminal device, a chip system, or a processor supporting the network device to implement the method, or a chip, a chip system, or a processor supporting the terminal device to implement the method. The apparatus may be configured to implement the method described in the method embodiment, and refer to the description in the method embodiment.

The apparatus 600 may comprise one or more processors 601, where the processors 601 may also be referred to as processing units and may implement certain control functions. The processor 601 may be a general purpose processor or a special purpose processor, etc. For example, a baseband processor or a central processor. The baseband processor may be configured to process communication protocols and communication data, and the central processor may be configured to control a communication device (e.g., a base station, a baseband chip, a terminal chip, a DU or CU, etc.), execute a software program, and process data of the software program.

In an alternative design, the processor 601 may also store instructions and/or data 603, and the instructions and/or data 603 may be executed by the processor, so that the apparatus 600 performs the method described in the above method embodiment.

In an alternative design, the processor 601 may include a transceiver unit to perform receive and transmit functions. The transceiving unit may be, for example, a transceiving circuit, or an interface circuit. The transmit and receive circuitry, interfaces or interface circuitry used to implement the receive and transmit functions may be separate or integrated. The transceiver circuit, the interface circuit or the interface circuit may be used for reading and writing code/data, or the transceiver circuit, the interface circuit or the interface circuit may be used for transmitting or transferring signals.

In yet another possible design, the apparatus 600 may include circuitry that may implement the functionality of transmitting or receiving or communicating in the foregoing method embodiments.

Optionally, the apparatus 600 may include one or more memories 602, on which instructions 604 may be stored, and the instructions may be executed on the processor, so that the apparatus 600 performs the methods described in the above method embodiments. Optionally, the memory may further store data therein. Optionally, instructions and/or data may also be stored in the processor. The processor and the memory may be provided separately or may be integrated together. For example, the correspondence described in the above method embodiments may be stored in a memory or in a processor.

Optionally, the apparatus 600 may further comprise a transceiver 605 and/or an antenna 606. The processor 601, which may be referred to as a processing unit, controls the apparatus 600. The transceiver 605 may be referred to as a transceiver unit, a transceiver circuit, a transceiving device, a transceiving module, or the like, and is used for implementing transceiving functions.

Optionally, the apparatus 600 in this embodiment of the present application may be used to perform the method described in fig. 4 in this embodiment of the present application.

The processors and transceivers described herein may be implemented on Integrated Circuits (ICs), analog ICs, Radio Frequency Integrated Circuits (RFICs), mixed signal ICs, Application Specific Integrated Circuits (ASICs), Printed Circuit Boards (PCBs), electronic devices, and the like. The processor and transceiver may also be fabricated using various IC process technologies, such as Complementary Metal Oxide Semiconductor (CMOS), N-type metal oxide semiconductor (NMOS), P-type metal oxide semiconductor (PMOS), Bipolar Junction Transistor (BJT), Bipolar CMOS (bicmos), silicon germanium (SiGe), gallium arsenide (GaAs), and the like.

The apparatus in the description of the above embodiment may be a network device or a terminal device, but the scope of the apparatus described in the present application is not limited thereto, and the structure of the apparatus may not be limited by fig. 6. The apparatus may be a stand-alone device or may be part of a larger device. For example, the apparatus may be:

(1) a stand-alone integrated circuit IC, or chip, or system-on-chip or subsystem;

(2) a set of one or more ICs, which optionally may also include storage components for storing data and/or instructions;

(3) an ASIC, such as a modem (MSM);

(4) a module that may be embedded within other devices;

(5) receivers, terminals, smart terminals, cellular phones, wireless devices, handsets, mobile units, in-vehicle devices, network devices, cloud devices, artificial intelligence devices, machine devices, home devices, medical devices, industrial devices, and the like;

(6) others, and so forth.

Fig. 7 provides a schematic structural diagram of a terminal device. The terminal device may be adapted to the scenario shown in fig. 1 or fig. 3. For convenience of explanation, fig. 7 shows only main components of the terminal device. As shown in fig. 7, the terminal device 700 includes a processor, a memory, a control circuit, an antenna, and an input-output means. The processor is mainly used for processing communication protocols and communication data, controlling the whole terminal, executing software programs and processing data of the software programs. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user.

When the terminal device is started, the processor can read the software program in the storage unit, analyze and execute the instruction of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit processes the baseband signals to obtain radio frequency signals and sends the radio frequency signals outwards in the form of electromagnetic waves through the antenna. When data is transmitted to the terminal device, the radio frequency circuit receives a radio frequency signal through the antenna, the radio frequency signal is further converted into a baseband signal, the baseband signal is output to the processor, and the processor converts the baseband signal into the data and processes the data.

For ease of illustration, fig. 7 shows only one memory and processor. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, and the like, which is not limited in this respect in the embodiment of the present invention.

As an alternative implementation manner, the processor may include a baseband processor and a central processing unit, where the baseband processor is mainly used to process a communication protocol and communication data, and the central processing unit is mainly used to control the whole terminal device, execute a software program, and process data of the software program. The processor in fig. 7 integrates the functions of the baseband processor and the central processing unit, and those skilled in the art will understand that the baseband processor and the central processing unit may also be independent processors, and are interconnected through a bus or the like. Those skilled in the art will appreciate that the terminal device may include a plurality of baseband processors to accommodate different network formats, the terminal device may include a plurality of central processors to enhance its processing capability, and various components of the terminal device may be connected by various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

In one example, the antenna and the control circuit having the transceiving function may be regarded as the transceiving unit 711 of the terminal device 700, and the processor having the processing function may be regarded as the processing unit 712 of the terminal device 700. As shown in fig. 7, the terminal device 700 includes a transceiving unit 711 and a processing unit 712. A transceiver unit may also be referred to as a transceiver, a transceiving device, etc. Alternatively, a device in the transceiver unit 711 for implementing a receiving function may be regarded as a receiving unit, and a device in the transceiver unit 711 for implementing a transmitting function may be regarded as a transmitting unit, that is, the transceiver unit 711 includes a receiving unit and a transmitting unit. For example, the receiving unit may also be referred to as a receiver, a receiving circuit, etc., and the sending unit may be referred to as a transmitter, a transmitting circuit, etc. Optionally, the receiving unit and the sending unit may be integrated into one unit, or may be multiple units independent of each other. The receiving unit and the transmitting unit can be in one geographical position or can be dispersed in a plurality of geographical positions.

As shown in fig. 8, yet another embodiment of the present application provides an apparatus 800. The device may be a terminal or a component of a terminal (e.g., an integrated circuit, a chip, etc.). Alternatively, the apparatus may be a network device, or a component of a network device (e.g., an integrated circuit, a chip, etc.). The apparatus may also be another communication module, which is used to implement the method in the embodiment of the method of the present application. The apparatus 800 may include a processing module 802 (or referred to as a processing unit). Optionally, the system may further include a transceiver module 801 (or referred to as a transceiver unit) and a storage module 803 (or referred to as a storage unit).

In one possible design, one or more of the modules in FIG. 8 may be implemented by one or more processors or by one or more processors and memory; or by one or more processors and transceivers; or by one or more processors, memories, and transceivers, which are not limited in this application. The processor, the memory and the transceiver can be arranged independently or integrated.

The apparatus has a function of implementing the terminal described in the embodiment of the present application, for example, the apparatus includes a module or a unit or means (means) corresponding to the terminal performing the terminal related steps described in the embodiment of the present application, and the function or the unit or the means (means) may be implemented by software, or implemented by hardware executing corresponding software, or implemented by a combination of software and hardware. Reference may be made in detail to the respective description of the corresponding method embodiments hereinbefore. Or, the apparatus has a function of implementing the network device described in the embodiment of the present application, for example, the apparatus includes a module, a unit, or a means (means) corresponding to the step of executing the network device described in the embodiment of the present application by the network device, and the function, the unit, or the means (means) may be implemented by software, or by hardware executing corresponding software, or by a combination of software and hardware. Reference may be made in detail to the respective description of the corresponding method embodiments hereinbefore.

Optionally, each module in the apparatus 800 in this embodiment of the present application may be configured to perform the method described in fig. 4 in this embodiment of the present application.

In one possible design, an apparatus 800 may include: a processing module 802 and a transceiver module 801. The transceiver module 801 is configured to receive control information from a network device, the processing module 802 is configured to control the transceiver module 801 to receive data from a first terminal on a first resource according to the control information, and the processing module 802 is further configured to control the transceiver module 801 to send the data to the network device on a second resource according to the control information. The control information may be understood as a kind of joint scheduling control information, which may be used for scheduling the sidelink data as well as for scheduling the uplink data. The apparatus 800 may be a second terminal and may also be a component of the second terminal (e.g., a processor, a chip, or a system of chips, etc.).

By the device, the network equipment can complete the joint scheduling of the sidelink and the uplink in the terminal cooperative communication through one piece of control information, thereby reducing the signaling overhead in the terminal cooperative communication.

Optionally, the control information is transmitted in a multicast manner.

Optionally, the control information is carried in a physical channel, and the physical channel may be, for example, a PDCCH or the like.

Optionally, the processing module 802 is configured to descramble the control information using one of the following RNTIs:

group RNTI: the group RNTI is used for identifying a terminal group;

Optionally, the transceiver module 801 is configured to receive the above data from the first terminal on a sidelink channel, which may be, for example, a psch, or a PSDCH, etc.

Optionally, the transceiver module 801 is configured to transmit the data to the network device on an uplink channel, which may be, for example, a PUSCH or the like.

Optionally, the first terminal and the second terminal belong to the same terminal group. Further optionally, the first terminal is a Target UE (TUE), and the second terminal is a Cooperative UE (CUE). Optionally, the first terminal is an energy consumption sensitive terminal, and the second terminal is an energy consumption insensitive terminal.

Optionally, the processing module 802 controls the transceiver module 801 to receive the data from the first terminal in an unauthorized manner on the first resource according to the control information.

Optionally, the processing module 802 controls the transceiver module 801 to transmit the data to the network device in an unauthorized manner on the second resource according to the control information.

In some possible embodiments of the apparatus 800, the control information includes first indication information and second indication information, where the first indication information is used for indicating the first resource, and the second indication information is used for indicating an offset between the second resource and the first resource. Optionally, the offset includes one or more of a time domain offset, a frequency domain offset, a code domain offset, or a spatial offset.

In some possible embodiments of the apparatus 800, the second indication information is used to indicate a value of an offset between the second resource and the first resource.

In some possible embodiments of the apparatus 800, the second indication information is used to indicate a first index, where the first index corresponds to a value of an offset between the second resource and the first resource.

In some possible embodiments of the apparatus 800, the second indication information is used to indicate a plurality of second resources, or the number of the second resources or the number of repetitions of the second resources is predefined.

In some possible embodiments of the apparatus 800, the second indication information is used for indicating the number of the second resource or for indicating the number of repetitions of the second resource.

In some possible embodiments of the apparatus 800, the second indication information is used to indicate a second index, and the second index corresponds to the number of the second resource or the number of repetitions of the second resource.

In some possible embodiments of the apparatus 800, the second indication information is further used to indicate a pattern (pattern) of the second resource, or the pattern of the second resource is predefined.

In some possible embodiments of the apparatus 800, the second indication information is used to indicate a third index, and the third index corresponds to a pattern of the second resource.

In some possible embodiments of the apparatus 800, the second indication information is used to indicate a time domain scaling factor and/or a frequency domain scaling factor of the second resource relative to the first resource.

In some possible embodiments of the apparatus 800, the second indication information is used to indicate a fourth index, and the fourth index corresponds to a time domain scaling factor and/or a frequency domain scaling factor of the second resource relative to the first resource.

In some possible embodiments of the apparatus 800, the second indication information is used for indicating a plurality of second resources and for indicating a pattern of the second resources.

In some possible embodiments of the apparatus 800, the control information includes first indication information for indicating the first resource, or the control information includes second indication information for indicating the second resource, and the second resource has a corresponding relationship with the first resource.

In some possible embodiments of the apparatus 800 described above, there is a predefined offset between the second resource and the first resource. The offset includes one or more of a time domain offset, a frequency domain offset, a code domain offset, or a spatial offset.

In some possible embodiments of the apparatus 800, there is a corresponding relationship between the number of the second resources or the number of times of repetition of the second resources and the size of the first resources.

In some possible embodiments of the apparatus 800, the pattern of the second resource corresponds to the pattern of the first resource.

In some possible embodiments of the apparatus 800, the control information further includes third indication information. Before the transceiver module 801 sends the aforementioned data to the network device, the processing module 802 performs preprocessing on the data according to the third indication information, where the preprocessing includes symbol-level equalization and/or symbol decision.

In some possible embodiments of the apparatus 800, the processing module 802 is further configured to determine, according to an RNTI of the descrambling control information, a format of the control information, a CORESET carrying the control information, or a value indicated by a first indication field in the control information, that the control information is used for joint scheduling or independent scheduling.

In another possible design, an apparatus 800 may include: a processing module 802 and a transceiver module 801. The transceiving module 801 is configured to send control information to the first terminal and the second terminal, where the control information indicates: the transmission of data by the first terminal on the first resource, the reception of the data by the second terminal on the first resource, and the transmission of the data by the second terminal on the second resource. The processing module 802 is configured to control the transceiver module 801 to receive the data from the second terminal on the second resource. The control information may be understood as a kind of joint scheduling control information, which may be used for scheduling the sidelink data as well as for scheduling the uplink data. The apparatus 800 may be a network device or a component of a network device (e.g., a processor, a chip, or a system-on-a-chip).

Optionally, the transceiver module 801 is configured to transmit the control information in a multicast manner.

group RNTI: the group RNTI is used for identifying a terminal group;

Optionally, the transceiving module 801 is configured to receive the above data from the second terminal on an uplink channel, which may be, for example, a PUSCH or the like.

Optionally, the first terminal and the second terminal belong to the same terminal group. Further optionally, the first terminal is a TUE and the second terminal is a CUE. Optionally, the first terminal is an energy consumption sensitive terminal, and the second terminal is an energy consumption insensitive terminal.

Optionally, the control information is used to indicate: and the first terminal sends the data without authorization on the first resource and/or the second terminal receives the data without authorization on the first resource.

Optionally, the control information is used to indicate: and the second terminal sends the data on the second resource without authorization.

In some possible embodiments of the apparatus 800, the control information further includes third indication information. The third indication information is used for indicating the preprocessing of the data, and the preprocessing comprises symbol-level equalization and/or symbol decision.

In some possible embodiments of the apparatus 800, the transceiver module 801 is further configured to receive a scheduling request from the first terminal, and the processing module 802 controls the transceiver module 801 to transmit the control information to the first terminal and the second terminal according to the scheduling request.

It is understood that some optional features in the embodiments of the present application may be implemented independently without depending on other features in some scenarios, such as a currently-based solution, to solve corresponding technical problems and achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the apparatuses provided in the embodiments of the present application may also implement these features or functions, which are not described herein again.

Those skilled in the art will also appreciate that the various illustrative logical blocks and steps (step) set forth in the embodiments of the present application may be implemented in electronic hardware, computer software, or combinations of both. Whether such functionality is implemented as hardware or software depends upon the particular application and design requirements of the overall system. Those skilled in the art can implement the described functions in various ways for corresponding applications, but such implementation decisions should not be interpreted as causing a departure from the scope of the embodiments of the present application.

It is understood 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 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 device, or discrete hardware components.

The approaches described herein may be implemented in a variety of ways. For example, these techniques may be implemented in hardware, software, or a combination of hardware and software. For a hardware implementation, the processing units used to perform these techniques at a communication device (e.g., a base station, terminal, network entity, or chip) may be implemented in one or more general-purpose processors, DSPs, digital signal processing devices, ASICs, programmable logic devices, FPGAs, or other programmable logic devices, discrete gate or transistor logic, discrete hardware components, or any combinations of the above. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration.

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.

The present application also provides a computer-readable medium having stored thereon a computer program which, when executed by a computer, performs the functions of any of the method embodiments described above.

The present application also provides a computer program product which, when executed by a computer, implements the functionality of any of the above-described method embodiments.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loaded and executed on a computer, cause the processes or functions described in accordance with the embodiments of the application to occur, in whole or in part. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments are not necessarily referring to the same embodiment throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

It should be understood that, in the present application, "when …", "if" and "if" all refer to the fact that the device performs the corresponding processing under certain objective conditions, and are not limited to time, and do not require any judgment action for the device to perform, nor do they imply other limitations.

The term "simultaneously" in this application is to be understood as being at the same point in time, as well as being within a period of time, and also being within the same period.

Those skilled in the art will understand that: the various numerical designations of first, second, etc. referred to in this application are merely for convenience of description and are not intended to limit the scope of the embodiments of the present application. The specific values, numbers and positions of the numbers (which may also be referred to as indexes) in the present application are only used for illustrative purposes, are not only used in a unique representation form, and are not used to limit the scope of the embodiments of the present application. The first, second, etc. numerical references in this application are also for descriptive convenience only and are not intended to limit the scope of the embodiments of the present application.

Reference in the present application to an element using the singular is intended to mean "one or more" rather than "one and only one" unless specifically stated otherwise. In the present application, unless otherwise specified, "at least one" is intended to mean "one or more" and "a plurality" is intended to mean "two or more".

Additionally, the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone, wherein A can be singular or plural, and B can be singular or plural. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

Herein, the term "at least one of … …" or "at least one of … …" means all or any combination of the listed items, e.g., "at least one of A, B and C", may mean: the compound comprises six cases of separately existing A, separately existing B, separately existing C, simultaneously existing A and B, simultaneously existing B and C, and simultaneously existing A, B and C, wherein A can be singular or plural, B can be singular or plural, and C can be singular or plural.

It is understood that in the embodiments of the present application, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

The correspondence shown in the tables in the present application may be configured or predefined. The values of the information in each table are only examples, and may be configured to other values, which is not limited in the present application. When the correspondence between the information and each parameter is configured, it is not always necessary to configure all the correspondences indicated in each table. For example, in the table in the present application, the correspondence shown in some rows may not be configured. For another example, appropriate modification adjustments, such as splitting, merging, etc., can be made based on the above tables. The names of the parameters in the tables may be other names understandable by the communication device, and the values or the expression of the parameters may be other values or expressions understandable by the communication device. When the above tables are implemented, other data structures may be used, for example, arrays, queues, containers, stacks, linear tables, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables, or hash tables may be used.

Predefinition in this application may be understood as defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-firing.

Those of ordinary skill in the art would 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.

For convenience and brevity of description, a person skilled in the art may refer to the corresponding processes in the foregoing method embodiments for specific working processes of the system, the apparatus, and the unit described above, which are not described herein again.

It will be appreciated that the systems, apparatus and methods described herein may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one 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 place, 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 same or similar parts between the various embodiments in this application may be referred to each other. In the embodiments and the implementation methods/implementation methods in the embodiments in the present application, unless otherwise specified or conflicting in logic, terms and/or descriptions between different embodiments and between various implementation methods/implementation methods in various embodiments have consistency and can be mutually cited, and technical features in different embodiments and various implementation methods/implementation methods in various embodiments can be combined to form new embodiments, implementation methods, or implementation methods according to the inherent logic relationships thereof. The above-described embodiments of the present application do not limit the scope of the present application.

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.

Claims

A method of communication, comprising:

receiving control information from a network device;

receiving data from a first terminal on a first resource according to the control information; and

and sending the data to the network equipment on a second resource according to the control information.
The method of claim 1,

the second resource and the first resource have a corresponding relation;

the control information includes first indication information indicating the first resource, or the control information includes second indication information indicating the second resource.
The method of claim 2, wherein the correspondence comprises one or more of:

there is a predefined offset between the second resource and the first resource, a number or number of repetitions of the second resource is related to a size of the first resource, or a pattern of the second resource is related to a pattern of the first resource.
A method according to claim 2 or 3, wherein the correspondence is predefined or configured by the network device.
The method of claim 1, wherein the control information comprises first indication information and second indication information.
The method of claim 5, wherein the first indication information indicates the first resource, and wherein the second indication information indicates an offset between the second resource and the first resource.
The method of claim 6, wherein the second indication information further indicates a pattern of the second resource.
The method according to claim 6 or 7, wherein the second indication information indicates a plurality of the second resources.
The method of claim 1, wherein receiving the data from the first terminal on the first resource according to the control information comprises:

receiving the data from the first terminal in an unauthorized manner on the first resource according to the control information.
The method of claim 1 or 9, wherein sending the data to the network device on the second resource according to the control information comprises:

and sending the data to the network equipment in an authorization-free mode on the second resource according to the control information.
The method according to any one of claims 1 to 10,

the control information comprises third indication information;

before sending the data to the network device on the second resource according to the control information, the method further includes:

and preprocessing the data according to the third indication information, wherein the preprocessing comprises symbol-level equalization and/or symbol decision.
A method of communication, comprising:

sending control information to the first terminal and the second terminal, wherein the control information is used for indicating that: the first terminal transmits data on a first resource, the second terminal receives the data on the first resource, and the second terminal transmits the data on a second resource; and

receiving the data from the second terminal on the second resource.
The method of claim 12,

the second resource and the first resource have a corresponding relation;

the control information includes first indication information indicating the first resource, or the control information includes second indication information indicating the second resource.
The method of claim 13, wherein the correspondence comprises one or more of:

there is a predefined offset between the second resource and the first resource, a number or number of repetitions of the second resource is related to a size of the first resource, or a pattern of the second resource is related to a pattern of the first resource.
The method according to claim 13 or 14, wherein the correspondence is predefined or configured by the network device.
The method of claim 12, wherein the control information comprises first indication information and second indication information.
The method of claim 16, wherein the first indication information indicates the first resource, and wherein the second indication information indicates an offset between the second resource and the first resource.
The method of claim 17, wherein the second indication information further indicates a pattern of the second resource.
The method according to claim 17 or 18, wherein the second indication information indicates a plurality of the second resources.
The method of claim 12, wherein the control information is used to indicate: and the first terminal sends the data on the first resource without authorization, and/or the second terminal receives the data on the first resource without authorization.
The method according to claim 12 or 20, wherein the control information is used to indicate: the second terminal sends the data on the second resource without authorization.
The method according to any one of claims 12 to 21, further comprising: receiving a scheduling request from the first terminal;

sending the control information to the first terminal and the second terminal, including:

and sending the control information to the first terminal and the second terminal according to the scheduling request.
A communications apparatus for performing the method of any one of claims 1 to 11 or for performing the method of any one of claims 12 to 22.
A communications apparatus, comprising: a processor coupled with a memory for storing a program or instructions that, when executed by the processor, cause the apparatus to perform the method of any of claims 1 to 11 or to perform the method of any of claims 12 to 22.
A storage medium having stored thereon a computer program or instructions which, when executed, cause a computer to perform the method of any of claims 1 to 11 or the method of any of claims 12 to 22.
A computer program product comprising computer program code which, when run on a computer, causes the computer to carry out the method of any one of claims 1 to 11 or to carry out the method of any one of claims 12 to 22.
A chip, comprising: a processor coupled with a memory for storing a program or instructions that, when executed by the processor, cause the apparatus to perform the method of any of claims 1 to 11 or the method of any of claims 12 to 22.
A communication system, the system comprising: the system comprises a first terminal, a second terminal and network equipment;

the network equipment is used for sending control information;

the second terminal is configured to receive the control information, receive data from the first terminal on a first resource according to the control information, and send the data to the network device on a second resource according to the control information.
A communications apparatus, comprising: the device comprises a processing module and a transmitting-receiving module;

the receiving and sending module is used for receiving control information from the network equipment;

the processing module is used for controlling the transceiver module to receive data from the first terminal on the first resource according to the control information;

the processing module is further configured to control the transceiver module to send the data to the network device on a second resource according to the control information.
The apparatus of claim 29,

the second resource and the first resource have a corresponding relation;

the control information includes first indication information indicating the first resource, or the control information includes second indication information indicating the second resource.
The apparatus of claim 30, wherein the correspondence comprises one or more of:

there is a predefined offset between the second resource and the first resource, a number or number of repetitions of the second resource is related to a size of the first resource, or a pattern of the second resource is related to a pattern of the first resource.
The apparatus according to claim 30 or 31, wherein the correspondence is predefined or configured by the network device.
The apparatus of claim 29, wherein the control information comprises first indication information and second indication information.
The apparatus of claim 33, wherein the first indication information indicates the first resource, and wherein the second indication information indicates an offset between the second resource and the first resource.
The apparatus of claim 34, wherein the second indication information further indicates a pattern of the second resource.
The apparatus according to claim 34 or 35, wherein the second indication information indicates a plurality of the second resources.
The apparatus of claim 29, wherein the processing module is configured to control the transceiver module to receive the data from the first terminal on the first resource according to the control information, and comprises:

the processing module is configured to control the transceiver module to receive the data from the first terminal in an unauthorized manner on the first resource according to the control information.
The apparatus of claim 29 or 37, wherein the processing module is configured to control the transceiver module to transmit the data to the network device on the second resource according to the control information, and comprises:

the processing module is configured to control the transceiver module to send the data to the network device in an authorization-free manner on the second resource according to the control information.
The apparatus of any one of claims 29 to 38,

the control information comprises third indication information;

before the processing module is configured to control the transceiver module to send the data to the network device on the second resource according to the control information, the processing module is further configured to perform preprocessing on the data according to the third indication information, where the preprocessing includes symbol level equalization and/or symbol decision.