CN111132296B

CN111132296B - Method and equipment for transmitting data and determining sending power

Info

Publication number: CN111132296B
Application number: CN201811295285.0A
Authority: CN
Inventors: 黎超; 刘哲; 张莉莉; 温容慧
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-11-01
Filing date: 2018-11-01
Publication date: 2021-06-22
Anticipated expiration: 2038-11-01
Also published as: WO2020088224A1; CN111132296A

Abstract

A method and a device for data transmission and determination of transmission power are used for realizing coexistence of a V2X technology based on LTE and a V2X technology based on NR in the same terminal device. The method comprises the following steps: a first terminal device acquires a first time domain resource, wherein the first time domain resource is used for transmitting information by adopting a first sideline transmission technology; the first terminal device obtains a second time domain resource, wherein the first time domain resource comprises the second time domain resource, the second time domain resource is used for transmitting information by adopting a second side-line transmission technology, and the first side-line transmission technology and the second side-line transmission technology are different transmission technologies; and the first terminal equipment transmits or receives first information on the second time domain resource by adopting the second sidelink transmission technology.

Description

Method and equipment for transmitting data and determining sending power

Technical Field

The present application relates to the field of communications technologies, and in particular, to a method and a device for data transmission and determining transmit power.

Background

In recent years, intelligent transportation technologies represented by the internet of vehicles have been rapidly developed. Similar studies have been conducted in the third generation partnership project (3 GPP), resulting in vehicle-to-everything (V2X) technology. The V2X technology includes, for example, vehicle-to-vehicle (V2V) communication technology, vehicle-to-human (V2P) communication technology, vehicle-to-infrastructure (V2I) communication technology, and the like, although other communication technologies may be included. For example, in the Long Term Evolution (LTE) system of 3GPP, standardization research for release (Rel) -14 has been completed, and standardization work for Rel-15 is being performed. In addition, some scenes, such as the company of the university, have announced that the chip of the internet of vehicles based on the Rel-14 protocol is released, and the manufacturers of the internet of vehicles and the entire vehicles actively start practical testing work.

On the other hand, the 3GPP has issued standards based on the development of the fifth generation mobile communication technology (5G), and the enhanced research of the car networking technology under the new technology framework of the 5G New Radio (NR) is also proposed. Then, how to effectively realize the coexistence of the existing LTE-based Rel-14 and Rel-15V 2X technologies and the new NR-developed V2X technology under the 5G technical framework, and particularly, how to realize the coexistence of the two systems of V2X technologies in the same terminal device is a problem to be solved.

Disclosure of Invention

The embodiment of the application provides a method and equipment for data transmission and transmission power determination, which are used for realizing coexistence of a V2X technology based on LTE and a V2X technology based on NR in the same terminal equipment.

In a first aspect, a first data transmission method is provided, where the method includes: a first terminal device acquires a first time domain resource, wherein the first time domain resource is used for transmitting information by adopting a first sideline transmission technology; the first terminal device obtains a second time domain resource, wherein the first time domain resource comprises the second time domain resource, the second time domain resource is used for transmitting information by adopting a second side-line transmission technology, and the first side-line transmission technology and the second side-line transmission technology are different transmission technologies; and the first terminal equipment transmits or receives first information on the second time domain resource by adopting the second sidelink transmission technology.

The method may be performed by a first communication device, which may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, but may also be other communication devices, such as a system-on-chip. Here, the first communication apparatus is exemplified as the first terminal device.

For example, the first sidelink transmission technology is a LTE-based V2X technology, and the second sidelink transmission technology is an NR-based sidelink transmission technology, and it can be seen that the technical solution provided in the embodiment of the present application realizes coexistence of the two technologies in the first terminal device. In this embodiment of the present application, the second time domain resource obtained by the first terminal device belongs to the first time domain resource, that is, the first time domain resource includes the second time domain resource, the first time domain resource is a resource used for transmitting information by using the first sideline transmission technology, and the second time domain resource is a resource used for transmitting information by using the second sideline transmission technology, which is equivalent to that when the terminal device transmits information by using the second sideline transmission technology, the resource originally allocated to the first sideline transmission technology may be used, for example, the information transmitted by using the second sideline transmission technology may have a higher requirement on the time delay, so that the resource allocated to the first sideline transmission technology may be occupied when the information is transmitted by using the second sideline transmission technology, which is helpful for satisfying the requirement on the time delay of the information transmitted by using the second sideline transmission technology as much as possible.

With reference to the first aspect, in a possible design of the first aspect, the acquiring, by the first terminal device, the second time domain resource includes: the first terminal equipment receives first indication information from network equipment, wherein the first indication information is used for indicating the second time domain resource; or, the first terminal device determines the second time domain resource according to the first time domain resource.

The first terminal device may obtain the second time domain resource according to the indication of the network device, or may determine the second time domain resource according to the first time domain resource, which is more flexible.

With reference to the first aspect, in one possible design of the first aspect, the method further includes: and the first terminal equipment transmits or receives the first information on the second time domain resource and a third time domain resource by adopting the second side-line transmission technology, wherein the third time domain resource is used for transmitting information by adopting the second side-line transmission technology.

For example, in a case that the first information has a higher requirement on the time delay, or is more important or urgent, the first terminal device may only send or receive the first information on the second time domain resource by using the second sidelink transmission technique, and does not need to allocate to the resource of the second sidelink transmission technique and also send or receive the first information by using the second sidelink transmission technique, that is, the transmission of the first information may only use the second time domain resource. Or, in another case, the data size of the first information is large, the first terminal device may send or receive the first information on the third time domain resource by using the second sidelink transmission technique in addition to sending or receiving the first information on the second time domain resource by using the second sidelink transmission technique, that is, the first terminal device sends or receives the first information on the second time domain resource and the third time domain resource by using the second sidelink transmission technique, and the second terminal device correspondingly receives or sends the first information on the second time domain resource and the third time domain resource by using the second sidelink transmission technique, thereby ensuring that the first information can be completely transmitted. The third time domain resource may be a resource for transmitting information using the second sidelink transmission technique.

With reference to the first aspect, in one possible design of the first aspect, the method further includes: and the first terminal equipment sends second indication information, wherein the second indication information is used for indicating the second time domain resource.

Because the first terminal device is to transmit or receive data on the second time domain resource through the second link, after determining the second time domain resource, the first terminal device may indicate information of the second time domain resource to the second terminal device, so that the second terminal device can perform corresponding receiving or transmitting operation on the second time domain resource.

With reference to the first aspect, in a possible design of the first aspect, an interval between a time domain position for sending the second indication information and a time domain position where the second time domain resource is located is greater than or equal to a predetermined interval.

The predetermined interval is indicated by the network device, for example by signalling, or predefined by a protocol, or may be preconfigured for the terminal device. The predetermined interval may be greater than 0, which is equivalent to a certain time interval between the second indication information and the second time domain resource, so that the second terminal device may have a sufficient response time after receiving the second indication information, and thus may receive or transmit the second indication information in time on the second time domain resource, or the predetermined interval may also be 0, that is, the time domain position where the second indication information is transmitted and the time domain position where the second time domain resource is located may be adjacent.

With reference to the first aspect, in a possible design of the first aspect, the second indication information is used to indicate information of a time window in which the second time domain resource is located, or the second indication information is used to indicate a time domain starting position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain ending position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain starting position and a time domain ending position of the second time domain resource.

The specific indication mode of the second indication information is not limited in the embodiment of the present application.

With reference to the first aspect, in one possible design of the first aspect, the method further includes: when a first condition is met and the first terminal equipment performs receiving detection on the second time domain resource through a first link, stopping performing the receiving detection; and/or, when a first condition is met and first data to be sent through a first link exists on the second time domain resource, stopping sending the first data on the second time domain resource, or adjusting the sending power of the first data from a first sending power to a second sending power, and sending the first data on the second time domain resource through the second sending power; wherein the first link is configured to transmit information using the first sidelink transmission technique.

If data is to be transmitted over the first link on the second time domain resource itself, then the transmission on the first link may be suspended or the transmit power on the first link may be reduced so that the second time domain resource may be guaranteed to be available for transmission on the second link.

With reference to the first aspect, in one possible design of the first aspect, the first condition includes at least one of: the priority of the data transmitted by the first terminal equipment through the second link is higher than that of the data transmitted by the first terminal equipment through the first link, and the second link is used for transmitting information by adopting the second sidelink transmission technology; the priority of the data transmitted by the first terminal equipment through the first link is lower than a first preset priority; the transmission delay of the data transmitted by the first terminal equipment through the second link is less than a predetermined delay, and the priority of the data transmitted by the terminal equipment through the second link is higher than a second predetermined priority; the transmission distance of the data transmitted by the first terminal equipment through the second link is less than a preset distance, and the priority of the data transmitted by the first terminal equipment through the second link is higher than a second preset priority; the data packet size of the data transmitted by the first terminal equipment through the second link is smaller than a preset value, and the priority of the data transmitted by the first terminal equipment through the second link is higher than a second preset priority; or, the transmission power of the data transmitted by the first terminal device through the second link is less than a predetermined transmission power, and the priority of the data transmitted by the first terminal device through the second link is higher than a second predetermined priority.

In order to make the second link more meaningful for preempting the resource of the first link, in this embodiment of the application, the second link may preempt the resource of the first link, where the second link satisfies the first condition, or when the data of the second link satisfies the first condition, if the second link satisfies the first condition, it may indicate that the priority of the data of the second link is higher, or may indicate that the data of the second link is more urgent or more important, and in this case, the second link may occupy the second time domain resource of the first link, so as to ensure that the data of the second link can be sent in time.

With reference to the first aspect, in a possible design of the first aspect, the first time domain resource includes the second time domain resource, and includes: the second time domain resource belongs to a subframe of the first terminal equipment except for measurement operation on the first link in the first time domain resource; and/or the second time domain resource belongs to a subframe in the first time domain resource, in which the first link of the first terminal equipment does not transmit data; wherein the first link is configured to transmit information using the first sidelink transmission technique.

For example, the first time domain resource includes time domain resources of a first link allocated to the plurality of terminal devices, and the first link of the first terminal device may only use a part of the time domain resources in the first time domain resource, and then the second link of the first terminal device may occupy the time domain resources, which are not occupied by the first link of the first terminal device, in the first time domain resource to transmit or receive data, so that the utilization rate of the first time domain resource may be improved as much as possible.

With reference to the first aspect, in a possible design of the first aspect, a resource allocated to a first link and a resource allocated to a second link are located on the same carrier or on different carriers, where the first link is configured to transmit information using the first sidelink transmission technique, and the second link is configured to transmit information using the second sidelink transmission technique.

The frequency domain resources of the first link and the second link are not limited in the embodiments of the present application.

With reference to the first aspect, in one possible design of the first aspect, the method further includes: and the first terminal equipment determines the sending resource allocated to the first link and/or determines the receiving resource allocated to the first link, the second time domain resource belongs to the sending resource or the receiving resource allocated to the first link, and the first link is used for transmitting information by adopting the first side-line transmission technology.

For example, the first terminal device may determine the transmission resources allocated to the first link and/or the reception resources allocated to the first link. The second time domain resource determined by the first terminal device may belong to a transmission resource or a reception resource allocated to the first link, so that the first terminal device may specify whether the second time domain resource is a transmission resource or a reception resource.

With reference to the first aspect, in one possible design of the first aspect, the method further includes: the first terminal device determines the transmission resources allocated to the first link and the second link at the same time, and/or determines the reception resources allocated to the first link and the second link at the same time, where the second time domain resource belongs to the transmission resources or the reception resources allocated to the first link and the second link at the same time, and the second link is used for transmitting information by using the second sidelink transmission technology.

In this way, the first terminal device can ascertain which resources of the first link the second link can preempt.

With reference to the first aspect, in one possible design of the first aspect, the method further includes: the first terminal device determines transmission resources for the second link allocated only to the first terminal device and/or determines reception resources for the second link allocated only to the first terminal device.

If the network device allocates a common resource to the first link and the second link, that is, determines a transmission resource for the second link simultaneously allocated to the first link and the first terminal device and/or a reception resource for the second link simultaneously allocated to the first link and the first terminal device, the network device may further allocate a resource for only the second link to the first terminal device for the terminal device to better transmit data of the second link.

With reference to the first aspect, in one possible design of the first aspect, the method further includes: and the first terminal equipment sends third indication information, wherein the third indication information is used for indicating the sending resource and/or the receiving resource which are included in the first time domain resource and are used for the first link.

The third indication information may be sent to the second terminal device separately, or may also be sent in a broadcast or multicast manner, in short, the first terminal device may send the third indication information to the second terminal device, and the third indication information may be used to indicate the transmission resource and/or the reception resource included in the first time domain resource and used for the first link, so that the second terminal device is more convenient to determine the second time domain resource.

With reference to the first aspect, in a possible design of the first aspect, a type of a synchronization source of a first link and a type of a synchronization source of a second link are the same or have a preset timing offset, where the first link is configured to transmit information using the first sidelink transmission technology, and the second link is configured to transmit information using the second sidelink transmission technology.

In the embodiment of the present application, the first link and the second link are synchronized with each other, where link synchronization is understood to be synchronization between time units of the links, that is, the time unit of the first link and the time unit of the second link are synchronized, so that TDM transmission of the first link and the second link can be realized. The synchronization of the first link and the second link may be achieved, for example, in such a manner that the type of the synchronization source of the first link and the type of the synchronization source of the second link are the same, or may be achieved in such a manner that the first link and the second link have a preset timing offset.

With reference to the first aspect, in a possible design of the first aspect, when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines a candidate synchronization source with a higher priority as a synchronization source of the first link and the second link; or, when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines that the synchronization source of the first link is the synchronization source of the second link; or, the timing of the second link is obtained according to the timing of the first link.

The first link and the second link may have respective candidate synchronization sources, and several ways of enabling the first link and the second link to be synchronized are provided as above, but in the embodiment of the present application, the way of enabling the first link and the second link to be synchronized is not limited to this.

With reference to the first aspect, in a possible design of the first aspect, the first time domain resource is a mode 1 or mode 3 transmission resource for a first link, and the second time domain resource is a mode 1 transmission resource for a second link; or, the first time domain resource is a transmission resource of mode 1 or mode 3 for a first link, and the second time domain resource is a transmission resource of mode 2 for a second link; or, the first time domain resource is a transmission resource of mode 2 or mode 4 for a first link, and the second time domain resource is a transmission resource of mode 1 for a second link; or, the first time domain resource is a transmission resource of mode 2 or mode 3 for a first link, and the second time domain resource is a transmission resource of mode 2 for a second link; the first link is configured to transmit information using the first sidelink transmission technique, and the second link is configured to transmit information using the second sidelink transmission technique.

With reference to the first aspect, in one possible design of the first aspect, the method further includes: the first terminal equipment transmits or receives data on a first frequency domain resource of the first time domain resource through a first link; the first terminal equipment transmits or receives data on a second frequency domain resource of the second time domain resource through a second link; the first frequency domain resource is the same as or different from the second frequency domain resource, the first link is configured to transmit information using the first sidelink transmission technique, and the second link is configured to transmit information using the second sidelink transmission technique.

The frequency domain resource corresponding to the first time domain resource and the frequency domain resource corresponding to the second time domain resource are not limited in the embodiments of the present application.

In a second aspect, a second data transmission method is provided, the method including: a second terminal device receives second indication information from a first terminal device, where the second indication information is used to indicate a second time domain resource, the second time domain resource belongs to a first time domain resource, the first time domain resource is used to transmit information by using a first sidelink transmission technology, the second time domain resource is used to transmit information by using a second sidelink transmission technology, and the first sidelink transmission technology and the second sidelink transmission technology are different transmission technologies; and the second terminal equipment receives or sends the first information on the second time domain resource by adopting a second side-line transmission technology.

The method may be performed by a second communication device, which may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, but may also be other communication devices, such as a system-on-chip. Here, the second communication apparatus is exemplified as the second terminal device.

With reference to the second aspect, in one possible design of the second aspect, the method further includes: and the second terminal equipment receives or sends the first information on the second time domain resource and a third time domain resource by adopting the second sidelink transmission technology, wherein the third time domain resource is used for transmitting information by adopting the second sidelink transmission technology.

With reference to the second aspect, in a possible design of the second aspect, an interval between the time domain location for receiving the indication information and the time domain location where the second time domain resource is located is greater than or equal to a predetermined interval.

With reference to the second aspect, in a possible design of the second aspect, the indication information is used to indicate information of a time window in which the second time domain resource is located, or the indication information is used to indicate a time domain starting position and a time duration of the second time domain resource, or the indication information is used to indicate a time domain ending position and a time duration of the second time domain resource, or the indication information is used to indicate a time domain starting position and a time domain ending position of the second time domain resource.

With reference to the second aspect, in a possible design of the second aspect, the second time domain resource belongs to the first time domain resource, and includes: the second time domain resource belongs to a subframe of the first terminal equipment except for measurement operation on the first link in the first time domain resource; and/or the second time domain resource belongs to a subframe in the first time domain resource, in which the first link of the first terminal equipment does not transmit data; wherein the first link is configured to transmit information using the first sidelink transmission technique.

With reference to the second aspect, in one possible design of the second aspect, the method further includes: and the second terminal device receives third indication information from the first terminal device, where the third indication information is used to indicate a transmission resource and/or a reception resource included in the first time domain resource and used for the first link.

With regard to the technical effects brought about by the second aspect or the various possible designs of the second aspect, reference may be made to the introduction of the technical effects of the first aspect or the various possible designs of the first aspect.

In a third aspect, a first method for determining a transmit power is provided, the method comprising: a first terminal device obtains a first sending power and a maximum sending power, wherein the first sending power is used for the first terminal device to send data by adopting a first sidelink transmission technology, and the maximum sending power is the maximum sending power of the first terminal device; and the first terminal equipment determines second sending power according to the first sending power and the maximum sending power, wherein the second sending power is used for sending data by the first terminal equipment by adopting a second side-line transmission technology.

If the network device is allocated in the FDM mode when allocating resources for the first link and the second link, embodiments of the present application provide a corresponding method for determining how to allocate transmit power for the first link and the second link.

The method may be performed by a third communication device, which may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, but may also be other communication devices, such as a system-on-chip. Here, the third communication apparatus is exemplified as the first terminal device.

With reference to the third aspect, in a possible design of the third aspect, the maximum transmission power is a maximum transmission power of the first terminal device on one carrier, or a total maximum transmission power of the first terminal device on multiple carriers of a same frequency band, or a maximum transmission power configured for the first terminal device by a network device.

The maximum transmission power is, for example, the maximum transmission power of the first terminal device on one carrier, or the total maximum transmission power of the first terminal device on multiple carriers of the same frequency band, or the maximum transmission power configured for the first terminal device by the network device. If the maximum transmission power is the maximum transmission power of the first terminal device on one carrier or the total maximum transmission power of the first terminal device on multiple carriers of the same frequency band, it may be understood that the maximum transmission power is the maximum transmission power supported by the actual capability of the first terminal device, and if the maximum transmission power is the maximum transmission power configured by the network device for the first terminal device, the configured maximum transmission power may be less than or equal to the maximum transmission power supported by the actual capability of the first terminal device.

With reference to the third aspect, in a possible design of the third aspect, the determining, by the first terminal device, a second transmission power according to the first transmission power and the maximum transmission power includes: and the first terminal equipment determines the second transmission power according to the difference between the maximum transmission power and the first transmission power.

With reference to the third aspect, in a possible design of the third aspect, the determining, by the first terminal device, the second transmission power according to a difference between the maximum transmission power and the first transmission power includes: and the first terminal equipment determines the second transmission power according to the difference between the maximum transmission power and the first transmission power and the power determined according to the path loss from the first terminal equipment to the network equipment.

With reference to the third aspect, in a possible design of the third aspect, the determining, by the first terminal device, the second transmission power according to a difference between the maximum transmission power and the first transmission power and according to a power determined by a path loss between the first terminal device and a network device includes: the second transmit power is determined by: min { P_max-P₁,P₃Where min { a, b } denotes taking a smaller number between a, b, P_maxFor the maximum transmission power, P₁For the first transmission power, P₃According to the first terminalA power determined by a device to network device path loss.

Several methods of determining the second transmit power are provided above.

With reference to the third aspect, in one possible design of the third aspect, the method further includes: when a first condition is met, the first terminal device discards data to be transmitted through a first link in a first time domain resource, or adjusts the transmission power of the data to be transmitted through the first link in the first time domain resource from the first transmission power to a third transmission power, wherein the first link is used for transmitting information by adopting the first side-row transmission technology; if the data to be sent through the first link in the first time domain resource is discarded, the first terminal equipment sends the data through the second link in the first time domain resource by the second sending power; or, if the transmission power of the data to be transmitted through the first link in the first time domain resource is adjusted from the first transmission power to a third transmission power, the first terminal device transmits the data through the second link in the first time domain resource by using the second transmission power, and transmits the data through the first link by using the third transmission power, where the second link is used to transmit information by using the second sidelink transmission technology.

In the embodiment of the present application, the first link and the second link are frequency division multiplexed, and then the first link and the second link may transmit data simultaneously. However, the total transmission power of the first terminal device is limited, and if the total transmission power of the first terminal device cannot satisfy that the first link and the second link transmit data simultaneously, the embodiment of the present application may take certain measures. For example, when the first condition is satisfied, the data to be transmitted through the first link in the first time domain resource is discarded, or the transmission power of the data to be transmitted through the first link in the first time domain resource is adjusted from the first transmission power to the third transmission power, and then the data is transmitted through the first link according to the third transmission power in the first time domain resource. That is, if the total transmission power of the first terminal device cannot satisfy that the first link and the second link transmit data simultaneously, the data of the first link can be stopped from being transmitted in the first time domain resource, and the data of the second link can be ensured to be transmitted in time in the first time domain resource as much as possible; or, if the total transmission power of the first terminal device cannot satisfy that the first link and the second link transmit data simultaneously, the transmission power of the first link may also be adjusted, one adjustment manner is, for example, to reduce the transmission power of the first link, that is, the third transmission power is smaller than the first transmission power, so that the first terminal device may transmit data simultaneously through the first link and the second link, and it is ensured that both the data of the first link and the data of the second link can be transmitted in time as much as possible.

With reference to the third aspect, in a possible design of the third aspect, the first condition includes at least one of the following conditions: the data of the second link has a higher priority than the data of the first link; the priority of the data of the first link is lower than a first predetermined priority; the transmission delay of the data of the second link is less than a predetermined delay, and the priority of the data of the second link is higher than a second predetermined priority; the transmission distance of the data of the second link is less than a preset distance, and the priority of the data of the second link is higher than a second preset priority; the data packet size of the data of the second link is smaller than a preset value, and the priority of the data of the second link is higher than a second preset priority; or, the transmission power of the data of the second link is less than the predetermined transmission power, and the priority of the data of the second link is higher than a second predetermined priority.

In order to make the processing of the data of the first link more meaningful, in the embodiment of the present application, the processing may be performed when the first condition is met, and if the second link meets the first condition (or the data of the second link meets the first condition), it may indicate that the priority of the data of the second link is higher, or it may indicate that the data of the second link is more urgent or important, and so on, so that it may be ensured that the data of the second link can be sent in time.

With reference to the third aspect, in a possible design of the third aspect, at the same time, a first link and a second link transmit data on the same carrier or on different carriers, where the first link is configured to transmit information using the first sidelink transmission technology, and the second link is configured to transmit information using the second sidelink transmission technology.

With reference to the third aspect, in a possible design of the third aspect, the synchronization sources of the first link and the second link are of the same type or have a preset timing offset, where the first link is configured to transmit information using the first sidelink transmission technology, and the second link is configured to transmit information using the second sidelink transmission technology.

With reference to the third aspect, in one possible design of the third aspect, the method further includes: when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines a candidate synchronization source with a higher priority as the synchronization source of the first link and the second link; or, when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines that the synchronization source of the first link is the synchronization source of the second link; or, the first terminal device obtains the timing of the second link according to the timing of the first link.

With regard to the technical effects brought about by several possible designs as described above, reference is made to the introduction of the technical effects of the respective designs of the first aspect.

In a fourth aspect, a second method for determining transmit power is provided, the method comprising: a first terminal device acquires a first ratio and a maximum transmission power, the first ratio being a ratio between transmission power for transmitting data through a first link and transmission power for transmitting data through a second link, or a ratio between power spectral density of transmission power for transmitting data through the first link and power spectral density of transmission power for transmitting data through the second link, or a ratio between a second ratio and a third ratio, the second ratio being a ratio between power spectral density of transmission power for transmitting data through the first link and subcarrier spacing for the first link, the third ratio being a ratio between power spectral density of transmission power for transmitting data through the second link and subcarrier spacing for the second link, the maximum transmission power being the maximum transmission power of the first terminal device, the first link being used for transmitting information by a first sidelink transmission technique, the first link is used for transmitting information through a second sidelink transmission technology; and the first terminal equipment determines a first transmission power and a second transmission power according to the first ratio and the maximum transmission power, wherein the first transmission power is used for transmitting data through the first link, and the second transmission power is used for transmitting data through the second link.

The method may be executed by a fourth communication device, which may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, or may be other communication devices, such as a system-on-chip. Here, the fourth communication device is taken as an example of the first terminal device.

If the network device is allocated in the FDM mode when allocating resources for the first link and the second link, embodiments of the present application further provide a corresponding method for determining how to allocate transmission power for the first link and the second link.

With reference to the fourth aspect, in a possible design of the fourth aspect, the determining, by the first terminal device, a first transmit power and a second transmit power according to the first ratio and the maximum transmit power includes: the first terminal equipment is according to formula P₁＝α*M₁*P_max/(α*M₁+M₂) Calculating the first transmit power, and according to formula P₂＝M₂*P_max/(α*M₁+M₂) Calculating the second transmission power; wherein, P₁Representing said first transmission power, a representing said first ratio, M₁Represents a bandwidth, M, of data transmitted over said first link₂Representing the bandwidth, P, over which data is transmitted over said second link₂Indicating the indicated second transmission power, P_maxRepresenting the maximum hairAnd (4) power transmission.

With reference to the fourth aspect, in a possible design of the fourth aspect, the determining, by the first terminal device, a first transmit power and a second transmit power according to the first ratio and the maximum transmit power includes: the first terminal equipment is according to formula P₁＝θ*2^-μ*M₁*P_max/(θ*2^-μ*M₁+M₂) Calculating the first transmit power, and according to formula P₂＝M₂*P_max/(θ*2^-μ*M₁+M₂) Calculating the second transmission power; wherein, P₁Denotes a first transmission power, θ denotes the first ratio, and θ ═ P_SCS1/μ₁)/(P_SCS2/μ₂)＝(P_SCS1/P_SCS2)*(μ₂/μ₁)＝α*2^μDenotes a subcarrier spacing, mu, for the first link₂Denotes a subcarrier spacing for the second link, mu-mu₂-μ₁，M₁Represents a bandwidth, M, of data transmitted over said first link₂Representing the bandwidth, P, over which data is transmitted over said second link₂Indicating the indicated second transmission power, P_maxRepresenting said maximum transmission power, P_SCS1Represents the transmission power, P, of the first link_SCS2Represents a transmit power of the second link.

With reference to the fourth aspect, in a possible design of the fourth aspect, the determining, by the first terminal device, a first transmit power and a second transmit power according to the first ratio and the maximum transmit power includes: the first terminal equipment is according to formula P₂＝P_maxV (1+ beta) calculating the second transmission power, and according to the formula P₁＝P_max-P₂Calculating the first transmission power; wherein, P₁Is the first transmission power, beta is the first ratio, P₂For the second transmission power, P_maxIs the maximum transmit power.

As described above, several specific methods for determining the first transmission power and the second transmission power are provided, which can be flexibly selected in practical applications, or which of the above methods is used may also be predefined by a protocol, or configured to the terminal device by the network device through signaling, or may also be preconfigured to the terminal device.

With reference to the fourth aspect, in one possible design of the fourth aspect, the first link and the second link transmit data on the same carrier or on different carriers at the same time.

With reference to the fourth aspect, in a possible design of the fourth aspect, the synchronization sources of the first link and the second link are of the same type or have a preset timing offset.

With reference to the fourth aspect, in a possible design of the fourth aspect, when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines a candidate synchronization source with a higher priority as the synchronization source of the first link and the synchronization source of the second link; or, when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines that the synchronization source of the first link is the synchronization source of the second link; or, the first terminal device obtains the timing of the second link according to the timing of the first link.

With regard to the technical effects of several possible designs as above, reference may be made to the introduction of the technical effects of the respective designs of the first aspect.

In a fifth aspect, a first communication device is provided, for example, the first communication device described in the foregoing, for example, a first terminal equipment. The communication device has the function of realizing the first terminal equipment in the method design. The communication means for example comprise a processor and a transceiver coupled to each other, the transceiver for example being implemented as a communication interface, which here is understood to be a radio frequency transceiving component in the first terminal device, in particular,

a processor, configured to acquire a first time domain resource, where the first time domain resource is used to transmit information by using a first sidelink transmission technology;

the processor is further configured to obtain a second time domain resource, where the first time domain resource includes the second time domain resource, and the second time domain resource is configured to transmit information using a second sidelink transmission technique, and the first sidelink transmission technique and the second sidelink transmission technique are different transmission techniques;

a transceiver configured to transmit or receive first information on the second time domain resource using the second sidelink transmission technique.

With reference to the fifth aspect, in one possible design of the fifth aspect, the processor is configured to acquire the second time domain resource by: receiving, by a transceiver, first indication information from a network device, the first indication information indicating the second time domain resource; or, determining the second time domain resource according to the first time domain resource.

With reference to the fifth aspect, in one possible design of the fifth aspect, the transceiver is further configured to: and transmitting or receiving the first information by adopting the second sidelink transmission technology on the second time domain resource and a third time domain resource, wherein the third time domain resource is used for transmitting information by adopting the second sidelink transmission technology.

With reference to the fifth aspect, in one possible design of the fifth aspect, the transceiver is further configured to: and sending second indication information, wherein the second indication information is used for indicating the second time domain resource.

With reference to the fifth aspect, in a possible design of the fifth aspect, an interval between the time domain position for sending the second indication information and the time domain position where the second time domain resource is located is greater than or equal to a predetermined interval.

With reference to the fifth aspect, in a possible design of the fifth aspect, the second indication information is used to indicate information of a time window in which the second time domain resource is located, or the second indication information is used to indicate a time domain starting position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain ending position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain starting position and a time domain ending position of the second time domain resource.

With reference to the fifth aspect, in one possible design of the fifth aspect, the processor is further configured to: when a first condition is met and the first terminal equipment performs receiving detection on the second time domain resource through a first link, stopping performing the receiving detection; and/or, when a first condition is met and first data to be sent through a first link exists on the second time domain resource by the first terminal device, stopping sending the first data on the second time domain resource through a transceiver, or adjusting the sending power of the first data from a first sending power to a second sending power, and sending the first data on the second time domain resource through the transceiver according to the second sending power; wherein the first link is configured to transmit information using the first sidelink transmission technique.

With reference to the fifth aspect, in one possible design of the fifth aspect, the first condition includes at least one of: the priority of the data transmitted by the first terminal equipment through the second link is higher than that of the data transmitted by the first terminal equipment through the first link, and the second link is used for transmitting information by adopting the second sidelink transmission technology; the priority of the data transmitted by the first terminal equipment through the first link is lower than a first preset priority; the transmission delay of the data transmitted by the first terminal equipment through the second link is less than a predetermined delay, and the priority of the data transmitted by the terminal equipment through the second link is higher than a second predetermined priority; the transmission distance of the data transmitted by the first terminal equipment through the second link is less than a preset distance, and the priority of the data transmitted by the first terminal equipment through the second link is higher than a second preset priority; the data packet size of the data transmitted by the first terminal equipment through the second link is smaller than a preset value, and the priority of the data transmitted by the first terminal equipment through the second link is higher than a second preset priority; or, the transmission power of the data transmitted by the first terminal device through the second link is less than a predetermined transmission power, and the priority of the data transmitted by the first terminal device through the second link is higher than a second predetermined priority.

With reference to the fifth aspect, in a possible design of the fifth aspect, the first time domain resource includes the second time domain resource, and includes: the second time domain resource belongs to a subframe of the first terminal equipment except for measurement operation on the first link in the first time domain resource; and/or the second time domain resource belongs to a subframe in the first time domain resource, in which the first link of the first terminal equipment does not transmit data; wherein the first link is configured to transmit information using the first sidelink transmission technique.

With reference to the fifth aspect, in a possible design of the fifth aspect, the resource allocated to the first link and the resource allocated to the second link are located on the same carrier or located on different carriers, where the first link is configured to transmit information using the first sidelink transmission technology, and the second link is configured to transmit information using the second sidelink transmission technology.

With reference to the fifth aspect, in one possible design of the fifth aspect, the processor is further configured to: and determining a transmission resource allocated to the first link, and/or determining a reception resource allocated to the first link, where the second time domain resource belongs to the transmission resource or the reception resource allocated to the first link, and the first link is configured to transmit information by using the first sidelink transmission technology.

With reference to the fifth aspect, in one possible design of the fifth aspect, the processor is further configured to: determining a transmission resource simultaneously allocated to the first link and the second link, and/or determining a reception resource simultaneously allocated to the first link and the second link, where the second time domain resource belongs to the transmission resource or the reception resource simultaneously allocated to the first link and the second link, and the second link is used for transmitting information by using the second sidelink transmission technology.

With reference to the fifth aspect, in one possible design of the fifth aspect, the processor is further configured to: determining transmission resources for the second link allocated only to the first terminal device and/or determining reception resources for the second link allocated only to the first terminal device.

With reference to the fifth aspect, in one possible design of the fifth aspect, the transceiver is further configured to: and sending third indication information, where the third indication information is used to indicate a sending resource and/or a receiving resource included in the first time domain resource and used for the first link.

With reference to the fifth aspect, in a possible design of the fifth aspect, a type of a synchronization source of a first link and a type of a synchronization source of a second link are the same or have a preset timing offset, where the first link is configured to transmit information using the first sidelink transmission technology, and the second link is configured to transmit information using the second sidelink transmission technology.

With reference to the fifth aspect, in a possible design of the fifth aspect, when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines a candidate synchronization source with a higher priority as the synchronization source of the first link and the second link; or, when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines that the synchronization source of the first link is the synchronization source of the second link; or, the timing of the second link is obtained according to the timing of the first link.

With reference to the fifth aspect, in a possible design of the fifth aspect, the first time domain resource is a mode 1 or mode 3 transmission resource for a first link, and the second time domain resource is a mode 1 transmission resource for a second link; or, the first time domain resource is a transmission resource of mode 1 or mode 3 for a first link, and the second time domain resource is a transmission resource of mode 2 for a second link; or, the first time domain resource is a transmission resource of mode 2 or mode 4 for a first link, and the second time domain resource is a transmission resource of mode 1 for a second link; or, the first time domain resource is a transmission resource of mode 2 or mode 3 for a first link, and the second time domain resource is a transmission resource of mode 2 for a second link; the first link is configured to transmit information using the first sidelink transmission technique, and the second link is configured to transmit information using the second sidelink transmission technique.

With reference to the fifth aspect, in one possible design of the fifth aspect, the transceiver is further configured to: transmitting or receiving data on a first frequency domain resource of the first time domain resources over a first link; transmitting or receiving data on a second frequency domain resource of the second time domain resource over a second link; the first frequency domain resource is the same as or different from the second frequency domain resource, the first link is configured to transmit information using the first sidelink transmission technique, and the second link is configured to transmit information using the second sidelink transmission technique.

In a sixth aspect, a second communication device is provided, for example, the second communication device described in the foregoing, for example, a second terminal equipment. The communication device has the function of realizing the second terminal equipment in the method design. The communication means for example comprise a processor and a transceiver coupled to each other, the transceiver for example being implemented as a communication interface, which here is understood to be a radio frequency transceiving component in the second terminal device, in particular,

a transceiver, configured to receive second indication information from a first terminal device, where the second indication information is used to indicate a second time domain resource, where the second time domain resource belongs to a first time domain resource, the first time domain resource is used to transmit information by using a first sidelink transmission technology, the second time domain resource is used to transmit information by using a second sidelink transmission technology, and the first sidelink transmission technology and the second sidelink transmission technology are different transmission technologies;

a processor, configured to determine the second time domain resource according to the second indication information;

a transceiver further configured to receive or transmit first information on the second time domain resource using a second sidelink transmission technique.

With reference to the sixth aspect, in one possible design of the sixth aspect, the transceiver is further configured to: and receiving or sending the first information by adopting the second sidelink transmission technology on the second time domain resource and a third time domain resource, wherein the third time domain resource is used for transmitting information by adopting the second sidelink transmission technology.

With reference to the sixth aspect, in a possible design of the sixth aspect, an interval between the time domain position for receiving the indication information and the time domain position where the second time domain resource is located is greater than or equal to a predetermined interval.

With reference to the sixth aspect, in a possible design of the sixth aspect, the second indication information is used to indicate information of a time window in which the second time domain resource is located, or the second indication information is used to indicate a time domain starting position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain ending position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain starting position and a time domain ending position of the second time domain resource.

With reference to the sixth aspect, in one possible design of the sixth aspect, the second time domain resource belongs to the first time domain resource, and includes: the second time domain resource belongs to a subframe of the first terminal equipment except for measurement operation on the first link in the first time domain resource; and/or the second time domain resource belongs to a subframe in the first time domain resource, in which the first link of the first terminal equipment does not transmit data; wherein the first link is configured to transmit information using the first sidelink transmission technique.

With reference to the sixth aspect, in one possible design of the sixth aspect, the method further includes: and the second terminal device receives third indication information from the first terminal device, where the third indication information is used to indicate a transmission resource and/or a reception resource included in the first time domain resource and used for the first link.

With regard to the technical effects brought about by the sixth aspect or the various possible designs of the sixth aspect, reference may be made to the introduction of the second aspect or the various possible designs of the second aspect.

In a seventh aspect, a third communication device is provided, for example, the third communication device described in the foregoing, for example, the first terminal equipment. The communication device has the function of realizing the first terminal equipment in the method design. The communication means for example comprise a processor and a transceiver coupled to each other, the transceiver for example being implemented as a communication interface, which here is understood to be a radio frequency transceiving component in the first terminal device, in particular,

a processor, configured to obtain a first transmit power and a maximum transmit power, where the first transmit power is a transmit power used by the first terminal device to transmit data by using a first sidelink transmission technique, and the maximum transmit power is a maximum transmit power of the first terminal device;

and the processor is further configured to determine a second transmission power according to the first transmission power and the maximum transmission power, where the second transmission power is a transmission power used for the first terminal device to transmit data by using a second sidelink transmission technique through the transceiver.

With reference to the seventh aspect, in a possible design of the seventh aspect, the maximum transmission power is a maximum transmission power of the first terminal device on one carrier, or a total maximum transmission power of the first terminal device on multiple carriers of a same frequency band, or a maximum transmission power configured for the first terminal device by a network device.

With reference to the seventh aspect, in one possible design of the seventh aspect, the processor is configured to determine the second transmit power according to the first transmit power and the maximum transmit power by: determining the second transmit power based on a difference between the maximum transmit power and the first transmit power.

With reference to the seventh aspect, in one possible design of the seventh aspect, the processor is configured to determine the second transmit power according to a difference between the maximum transmit power and the first transmit power by: and determining the second transmission power according to the difference between the maximum transmission power and the first transmission power and the power determined according to the path loss between the first terminal equipment and the network equipment.

With reference to the seventh aspect, in a possible design of the seventh aspect, the processor is configured to determine the second transmit power according to a difference between the maximum transmit power and the first transmit power, and according to a power determined by a path loss between the first terminal device and a network device, by: the second transmit power is determined by: min { P_max-P₁,P₃Where min { a, b } denotes taking a smaller number between a, b, P_maxFor the maximum transmission power, P₁For the first transmission power, P₃Is a power determined according to the path loss between the first terminal device and the network device.

With reference to the seventh aspect, in one possible design of the seventh aspect, the processor is further configured to: when a first condition is met, the first terminal device discards data to be transmitted through a first link in a first time domain resource, or adjusts the transmission power of the data to be transmitted through the first link in the first time domain resource from the first transmission power to a third transmission power, wherein the first link is used for transmitting information by adopting the first side-row transmission technology; the transceiver is configured to transmit data via a second link at the second transmission power in the first time domain resource if the processor discards the data to be transmitted via the first link at the first time domain resource; or, the transceiver is configured to send data via the second link at the first time domain resource through the second transmission power and send data via the first link at the third transmission power if the processor adjusts the transmission power of the data to be sent via the first link at the first time domain resource from the first transmission power to a third transmission power, where the second link is configured to transmit information using the second sidelink transmission technology.

With reference to the seventh aspect, in one possible design of the seventh aspect, the first condition includes at least one of the following conditions: the data of the second link has a higher priority than the data of the first link; the priority of the data of the first link is lower than a first predetermined priority; the transmission delay of the data of the second link is less than a predetermined delay, and the priority of the data of the second link is higher than a second predetermined priority; the transmission distance of the data of the second link is less than a preset distance, and the priority of the data of the second link is higher than a second preset priority; the data packet size of the data of the second link is smaller than a preset value, and the priority of the data of the second link is higher than a second preset priority; or, the transmission power of the data of the second link is less than the predetermined transmission power, and the priority of the data of the second link is higher than a second predetermined priority.

With reference to the seventh aspect, in a possible design of the seventh aspect, at the same time, a first link and a second link transmit data on the same carrier or on different carriers, where the first link is configured to transmit information using the first sidelink transmission technology, and the second link is configured to transmit information using the second sidelink transmission technology.

With reference to the seventh aspect, in a possible design of the seventh aspect, the synchronization sources of the first link and the second link are of the same type or have a preset timing offset, where the first link is configured to transmit information using the first sidelink transmission technology, and the second link is configured to transmit information using the second sidelink transmission technology.

With reference to the seventh aspect, in one possible design of the seventh aspect, the processor is further configured to: when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines a candidate synchronization source with a higher priority as the synchronization source of the first link and the second link; or, when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines that the synchronization source of the first link is the synchronization source of the second link; or, the first terminal device obtains the timing of the second link according to the timing of the first link.

With regard to the technical effects brought about by the various possible designs of the seventh aspect or the seventh aspect, reference may be made to the introduction of the technical effects of the various possible designs of the third aspect or the third aspect.

In an eighth aspect, a fourth communication device is provided, for example, the fourth communication device described in the foregoing, for example, the first terminal equipment. The communication device has the function of realizing the first terminal equipment in the method design. The communication means for example comprise a processor and a transceiver coupled to each other, the transceiver for example being implemented as a communication interface, which here is understood to be a radio frequency transceiving component in the first terminal device, in particular,

a processor configured to obtain a first ratio and a maximum transmission power, the first ratio being a ratio between a transmission power for transmitting data through a first link and a transmission power for transmitting data through a second link, or a ratio between a power spectrum density of the transmission power for transmitting data through the first link and a power spectrum density of the transmission power for transmitting data through the second link, or a ratio between a second ratio and a third ratio, the second ratio being a ratio between a power spectrum density of the transmission power for transmitting data through the first link and a subcarrier spacing used for the first link, the third ratio being a ratio between a power spectrum density of the transmission power for transmitting data through the second link and a subcarrier spacing used for the second link, the maximum transmission power being a maximum transmission power of the first terminal device, the first link being used for transmitting information by a first sidelink transmission technique, the first link is used for transmitting information through a second sidelink transmission technology;

the processor is further configured to determine a first transmit power and a second transmit power according to the first ratio and the maximum transmit power, where the first transmit power is a transmit power used for transmitting data through the first link, and the second transmit power is a transmit power used for transmitting data through the second link.

With reference to the eighth aspect, in a possible design of the eighth aspect, the processor is configured to determine the first transmit power and the second transmit power according to the first ratio and the maximum transmit power by: according to formula P₁＝α*M₁*P_max/(α*M₁+M₂) Calculating the first transmit power, and according to formula P₂＝M₂*P_max/(α*M₁+M₂) Calculating the second transmission power; wherein, P₁Representing said first transmission power, a representing said first ratio, M₁Represents a bandwidth, M, of data transmitted over said first link₂Representing the bandwidth, P, over which data is transmitted over said second link₂Indicating the indicated second transmission power, P_maxRepresenting the maximum transmit power.

With reference to the eighth aspect, in a possible design of the eighth aspect, the processor is configured to determine the first transmit power and the second transmit power according to the first ratio and the maximum transmit power by: according to formula P₁＝θ*2^-μ*M₁*P_max/(θ*2^-μ*M₁+M₂) Calculating the first transmit power, and according to formula P₂＝M₂*P_max/(θ*2^-μ*M₁+M₂) Calculating the second transmission power; wherein, P₁Denotes a first transmission power, θ denotes the first ratio, and θ ═ P_SCS1/μ₁)/(P_SCS2/μ₂)＝(P_SCS1/P_SCS2)*(μ₂/μ₁)＝α*2^μDenotes a subcarrier spacing, mu, for the first link₂Denotes a subcarrier spacing for the second link, mu-mu₂-μ₁，M₁Represents a bandwidth, M, of data transmitted over said first link₂Representing the bandwidth, P, over which data is transmitted over said second link₂Indicating the indicated second transmission power, P_maxRepresenting said maximum transmission power, P_SCS1Represents the transmit power of the first link and,P_SCS2represents a transmit power of the second link.

With reference to the eighth aspect, in a possible design of the eighth aspect, the processor is configured to determine the first transmit power and the second transmit power according to the first ratio and the maximum transmit power by: according to formula P₂＝P_maxV (1+ beta) calculating the second transmission power, and according to the formula P₁＝P_max-P₂Calculating the first transmission power; wherein, P₁Is the first transmission power, beta is the first ratio, P₂For the second transmission power, P_maxIs the maximum transmit power.

With reference to the eighth aspect, in one possible design of the eighth aspect, the first link and the second link transmit data on the same carrier or on different carriers at the same time.

With reference to the eighth aspect, in a possible design of the eighth aspect, the synchronization sources of the first link and the second link are of the same type or have a preset timing offset.

With reference to the eighth aspect, in one possible design of the eighth aspect, the processor is further configured to: determining a candidate synchronization source with a higher priority as the synchronization source of the first link and the second link when the type of the candidate synchronization source of the first link and the type of the candidate synchronization source of the second link are different; or, when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, determining that the synchronization source of the first link is the synchronization source of the second link; or, the timing of the second link is obtained according to the timing of the first link.

With regard to the technical effects brought about by the eighth aspect or the various possible designs of the eighth aspect, reference may be made to the introduction of the technical effects of the fourth aspect or the various possible designs of the fourth aspect.

In a ninth aspect, a fifth communication device is provided, for example, the first communication device described in the foregoing, for example, the first terminal equipment. The communication device has the function of realizing the first terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the corresponding functions in the method provided in the first aspect or any one of the possible implementations of the first aspect.

A tenth aspect provides a sixth communication device, for example, the second communication device described in the foregoing, for example, a terminal equipment. The communication device has the function of realizing the second terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the corresponding functions in the method provided by the second aspect or any one of the possible implementations of the second aspect.

In an eleventh aspect, a seventh communication device is provided, for example the third communication device described in the foregoing, for example the first terminal equipment. The communication device has the function of realizing the first terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform corresponding functions in the method provided by the third aspect or any one of the possible implementations of the third aspect.

In a twelfth aspect, an eighth communication device is provided, for example, the fourth communication device described in the foregoing, for example, the first terminal equipment. The communication device has the function of realizing the first terminal equipment in the method design. These functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above functions.

In one possible design, the specific structure of the communication device may include a processing module and a transceiver module. The processing module and the transceiver module may perform the corresponding functions in the method provided by the fourth aspect or any one of the possible implementations of the fourth aspect.

In a thirteenth aspect, a ninth communications apparatus is provided. The communication device may be the first communication device in the above method design, for example, the first terminal equipment, or a chip disposed in the first terminal equipment. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the ninth communication device to perform the method of the first aspect or any one of the possible embodiments of the first aspect.

The ninth communication apparatus may further include a communication interface, and if the ninth communication apparatus is the first terminal device, the communication interface may be a transceiver in the first terminal device, for example, a radio frequency transceiver component in the first terminal device, or if the ninth communication apparatus is a chip disposed in the first terminal device, the communication interface may be an input/output interface of the chip, for example, an input/output pin, and the like.

In a fourteenth aspect, a tenth communications apparatus is provided. The communication device may be the second communication device in the above method design, such as a terminal device, or a chip disposed in the second terminal device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the sixth communication device to perform the method of the second aspect or any one of the possible embodiments of the second aspect.

Wherein, the tenth communication apparatus may further include a communication interface, if the tenth communication apparatus is the second terminal device, the communication interface may be a transceiver in the second terminal device, for example, a radio frequency transceiver component in the second terminal device, or if the tenth communication apparatus is a chip disposed in the second terminal device, the communication interface may be an input/output interface of the chip, for example, an input/output pin, etc.

In a fifteenth aspect, an eleventh communication device is provided. The communication device may be the third communication device in the above method design, such as the first terminal equipment, or a chip disposed in the first terminal equipment. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the eleventh communication device to perform the method of the third aspect or any one of the possible embodiments of the third aspect.

The eleventh communication apparatus may further include a communication interface, and if the eleventh communication apparatus is a first terminal device, the communication interface may be a transceiver in the first terminal device, for example, a radio frequency transceiver component in the first terminal device, or if the eleventh communication apparatus is a chip disposed in the first terminal device, the communication interface may be an input/output interface of the chip, for example, an input/output pin, and the like.

In a sixteenth aspect, a twelfth communications device is provided. The communication device may be the fourth communication device designed in the method, such as the first terminal device, or a chip disposed in the first terminal device. The communication device includes: a memory for storing computer executable program code; and a processor coupled with the memory. Wherein the program code stored by the memory comprises instructions which, when executed by the processor, cause the twelfth communication device to perform the method of the fourth aspect or any one of the possible embodiments of the fourth aspect.

The twelfth communication device may further include a communication interface, and if the twelfth communication device is the first terminal device, the communication interface may be a transceiver in the first terminal device, for example, a radio frequency transceiver component in the first terminal device, or if the twelfth communication device is a chip disposed in the first terminal device, the communication interface may be an input/output interface of the chip, for example, an input/output pin, and the like.

A seventeenth aspect provides a communication system, which may include the first communication apparatus of the fifth aspect, the fifth communication apparatus of the ninth aspect, or the ninth communication apparatus of the thirteenth aspect, and include the second communication apparatus of the sixth aspect, the sixth communication apparatus of the tenth aspect, or the tenth communication apparatus of the fourteenth aspect.

In an eighteenth aspect, there is provided a computer storage medium having stored therein instructions, which when run on a computer, cause the computer to perform the method as set forth in the first aspect or any one of the possible designs of the first aspect.

A nineteenth aspect provides a computer storage medium having stored therein instructions that, when run on a computer, cause the computer to perform the method of the second aspect described above or any one of the possible designs of the second aspect.

A twentieth aspect provides a computer storage medium having stored therein instructions that, when executed on a computer, cause the computer to perform the method as set forth in the third aspect or any one of the possible designs of the third aspect.

In a twenty-first aspect, there is provided a computer-readable storage medium having stored therein instructions, which, when run on a computer, cause the computer to perform the method of the fourth aspect or any one of the possible designs of the fourth aspect.

In a twenty-second aspect, there is provided a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the first aspect or any one of the possible designs of the first aspect.

A twenty-third aspect provides a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the second aspect or any one of the possible designs of the second aspect.

A twenty-fourth aspect provides a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method as set forth in the third aspect or any one of the possible designs of the third aspect.

A twenty-fifth aspect provides a computer program product comprising instructions stored thereon, which when run on a computer, cause the computer to perform the method of the fourth aspect described above or any one of the possible designs of the fourth aspect.

For example, the first sidelink transmission technology is a LTE-based V2X technology, and the second sidelink transmission technology is an NR-based sidelink transmission technology, and it can be seen that the technical solution provided in the embodiment of the present application realizes coexistence of the two technologies in the first terminal device. Moreover, when the terminal device transmits information by using the second sideline transmission technology, the terminal device can occupy the resources allocated to the first sideline transmission technology, which is beneficial to meeting the requirements of the information transmitted by using the second sideline transmission technology on time delay and the like as much as possible.

Drawings

Fig. 1 is a schematic view of an application scenario according to an embodiment of the present application;

fig. 2 is a schematic view of another application scenario according to an embodiment of the present application;

fig. 3 is a flowchart of a data transmission method according to an embodiment of the present application;

fig. 4A is a schematic diagram of TDM transmission performed on the same carrier by a first link and a second link according to the embodiment of the present application;

fig. 4B is a schematic diagram of TDM transmission performed on different carriers by a first link and a second link according to an embodiment of the present application;

fig. 4C is a schematic diagram of a first link and a second link occupying resources of the first link when the first link and the second link perform TDM transmission on the same carrier according to the embodiment of the present application;

fig. 4D is a schematic diagram of a first link and a second link occupying resources of the first link when the first link and the second link perform TDM transmission on a carrier of the first link according to the embodiment of the present application;

fig. 5 is a flowchart of a first method for determining transmission power according to an embodiment of the present disclosure;

fig. 6A is a schematic diagram of a resource allocated to a first link and a resource allocated to a second link being located in the same carrier according to an embodiment of the present disclosure;

fig. 6B and fig. 6C are schematic diagrams illustrating that resources allocated to a first link and resources allocated to a second link are located in different carriers according to an embodiment of the present application;

fig. 7 is a flowchart of a second method for determining transmission power according to an embodiment of the present application;

fig. 8 is a schematic diagram of a communication apparatus capable of implementing the function of a first terminal device according to an embodiment of the present application;

fig. 9 is a schematic diagram of a communication apparatus capable of implementing the function of a second terminal device according to an embodiment of the present application;

fig. 10 is a schematic diagram of a communication apparatus capable of implementing the function of a first terminal device according to an embodiment of the present application;

fig. 11 is a schematic diagram of a communication apparatus capable of implementing the function of a first terminal device according to an embodiment of the present application;

fig. 12A to 12B are two schematic diagrams of a communication device according to an embodiment of the present disclosure.

Detailed Description

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

Hereinafter, some terms in the embodiments of the present application are explained to facilitate understanding by those skilled in the art.

1) Terminal equipment, including devices that provide voice and/or data connectivity to a user, may include, for example, handheld devices with wireless connection capability or processing devices connected to wireless modems. The terminal device may communicate with a core network via a Radio Access Network (RAN), exchanging voice and/or data with the RAN. The terminal device may include a User Equipment (UE), a wireless terminal device, a mobile terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile), a remote station (remote station), an Access Point (AP), a remote terminal device (remote terminal), an access terminal device (access terminal), a user terminal device (user terminal), a user agent (user agent), a user equipment (user device), or the like. For example, mobile phones (or so-called "cellular" phones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-embedded mobile devices, smart wearable devices, and the like may be included. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like. Also included are constrained devices, such as devices that consume less power, or devices that have limited storage capabilities, or devices that have limited computing capabilities, etc. Examples of information sensing devices include bar codes, Radio Frequency Identification (RFID), sensors, Global Positioning Systems (GPS), laser scanners, and the like.

By way of example and not limitation, in the embodiment of the present application, the terminal device may also be a wearable device or the like. 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, smart helmets, smart jewelry and the like for monitoring physical signs.

The various terminal devices described above, if located on a vehicle (e.g., placed in or installed in the vehicle), may be considered to be vehicle-mounted terminal devices, which are also referred to as on-board units (OBUs), for example.

2) Network devices, including, for example, Access Network (AN) devices, such as base stations (e.g., access points), may refer to devices in AN access network that communicate with wireless terminal devices over one or more cells over AN air interface, or, for example, network devices in one type of V2X technology are Road Side Units (RSUs). The base station may be configured to interconvert received air frames and Internet Protocol (IP) packets as a router between the terminal device and the rest of the access network, which may include an IP network. The RSU may be a fixed infrastructure entity supporting the V2X application and may exchange messages with other entities supporting the V2X application. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an evolved LTE system (LTE-Advanced, LTE-a), or may also include a next generation Node B (gNB) in a 5G NR system, or may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a cloud access network (cloud radio access network) system, which is not limited in the embodiments.

3) The terms "system" and "network" in the embodiments of the present application may be used interchangeably. The "plurality" means two or more, and in view of this, the "plurality" may also be understood as "at least two" in the embodiments of the present application. "at least one" is to be understood as meaning one or more, for example one, two or more. For example, the inclusion of at least one means that one, two or more are included, and does not limit which is included. For example, at least one of A, B and C is included, then inclusion can be A, B, C, A and B, A and C, B and C, or A and B and C. Similarly, the understanding of the description of "at least one" and the like is similar. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.

Unless stated to the contrary, the embodiments of the present application refer to the ordinal numbers "first", "second", etc., for distinguishing between a plurality of objects, and do not limit the sequence, timing, priority, or importance of the plurality of objects. For example, the first time domain resource and the second time domain resource are only used for distinguishing different time domain resources, and the priority or importance of the two time domain resources is not limited.

The technical scheme provided by the embodiment of the application can be applied to a 5G system, or a future communication system or other similar communication systems. In addition, the technical solution provided in the embodiment of the present application may be applied to a cellular link, and may also be applied to a link between devices, for example, a device to device (D2D) link. The D2D link or the V2X link may also be referred to as a sidelink (sidelink), where the sidelink may also be referred to as an edge link or a sidelink, etc. In the embodiments of the present application, the above terms all refer to links established between devices of the same type, and have the same meaning. The devices of the same type may be links from the terminal device to the terminal device, links from the base station to the base station, links from the relay node to the relay node, and the like, which are not limited in this embodiment of the present application. For the link between the terminal device and the terminal device, there is a D2D link defined by release (Rel) -12/13 of 3GPP, and also a V2X link defined by 3GPP for the internet of vehicles, vehicle-to-vehicle, vehicle-to-cell, or vehicle-to-any entity, including Rel-14/15. But also the Rel-16 and subsequent releases of NR system based V2X link currently under investigation by 3 GPP.

The network architecture applied in the embodiments of the present application is described below. Please refer to fig. 1, which illustrates a network architecture applied in the present embodiment.

Fig. 1 includes a network device and two terminal devices, which are a terminal device 1 and a terminal device 2, respectively, both of the two terminal devices may be connected to the network device, and in addition, the two terminal devices may also communicate with each other through a sidelink (sidelink). Of course, the number of terminal devices in fig. 1 is only an example, and in practical applications, the network device may provide services for a plurality of terminal devices.

The network device in fig. 1 is, for example, an access network device, such as a base station. Wherein the access network equipment corresponds to different equipment on different systems, e.g. on the fourth generation mobile communication technology (the 4)^thgeneration, 4G) system may correspond to an eNB, and in a 5G system corresponds to an access network device in 5G, for example, a gNB.

The terminal device in fig. 1 is a vehicle-mounted terminal device or a vehicle as an example, but the terminal device in the embodiment of the present application is not limited thereto.

Please refer to fig. 2, which illustrates another network architecture applied in the embodiment of the present application.

Fig. 2 includes a network device and a terminal device, and the terminal device is connected to one network device. Of course, the number of terminal devices in fig. 2 is only an example, and in practical applications, the network device may provide services for a plurality of terminal devices. The terminal device in fig. 2 is an in-vehicle terminal device as an example, and is not limited to this in practical application.

The network device in fig. 2 is, for example, an access network device, such as a base station. The access network device corresponds to different devices in different systems, for example, in a 4G system, the access network device may correspond to an eNB, and in a 5G system, the access network device in a 5G system, for example, a gNB.

The technical solution provided by the embodiments of the present application is described below with reference to the accompanying drawings.

An embodiment of the present application provides a data transmission method, please refer to fig. 3, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 1 as an example. In addition, the method may be performed by three communication apparatuses, such as a first communication apparatus, a second communication apparatus, and a third communication apparatus, where the first communication apparatus may be a network device or a communication apparatus capable of supporting a network device to implement the functions required by the method, or the first communication apparatus may be a terminal device or a communication apparatus capable of supporting a terminal device to implement the functions required by the method, and may of course be other communication apparatuses such as a system on chip. The second communication device may be a network device or a communication device capable of supporting the network device to implement the functions required by the method, or the second communication device may be a terminal device or a communication device capable of supporting the terminal device to implement the functions required by the method, or of course, other communication devices such as a system on chip may also be used. The same is true for the third communication apparatus, which may be a network device or a communication apparatus capable of supporting the network device to implement the functions required by the method, or the third communication apparatus may be a terminal device or a communication apparatus capable of supporting the terminal device to implement the functions required by the method, and may also be other communication apparatuses, such as a system on chip. The implementation manners of the first communication device, the second communication device, and the third communication device are not limited, for example, the first communication device may be a network device, the second communication device is a terminal device, and the third communication device is also a terminal device, or the first communication device is a network device, the second communication device is a communication device capable of supporting the terminal device to implement the functions required by the method, the third communication device is a terminal device, or the first communication device is a network device, and the second communication device and the third communication device are both communication devices capable of supporting the terminal device to implement the functions required by the method, and so on. The network device is, for example, a base station.

For convenience of introduction, in the following, the method is taken as an example performed by a network device and a terminal device, that is, the first communication apparatus is a network device, and the second communication apparatus and the third communication apparatus are all terminal devices. Since the present embodiment is applied to the network architecture shown in fig. 1 as an example, the network device described below may be a network device in the network architecture shown in fig. 1, the first terminal device described below may be the terminal device 1 in the network architecture shown in fig. 1, and the second terminal device described below may be the terminal device 2 in the network architecture shown in fig. 1.

S31, a first terminal device acquires a first time domain resource, wherein the first time domain resource is used for transmitting information by adopting a first sideline transmission technology;

s32, a first terminal device obtains a second time domain resource, where the first time domain resource includes the second time domain resource, the second time domain resource is used for transmitting information by using a second side-row transmission technology, and the first side-row transmission technology and the second side-row transmission technology are different transmission technologies;

s33, the first terminal device sends or receives the first information on the second time domain resource by using the second side-line transmission technique, and the second terminal device correspondingly receives or sends the first information on the second time domain resource by using the second side-line transmission technique.

In the embodiment of the present application, the first time domain resource is used to transmit information by using a first sideline transmission technology, and the second time domain resource is used to transmit information by using a second sideline transmission technology, so that for the first terminal device, the first sideline transmission technology may be used to transmit information, and the second sideline transmission technology may also be used to transmit information, thereby implementing coexistence of two sideline transmission technologies in one terminal device. For example, if the first sidelink transmission technology is an LTE-based V2X technology (which may also be described as LTE-V2X), and the second sidelink transmission technology is an NR-based V2X technology (which may also be described as NR-V2X), the embodiment of the present application implements coexistence of the LTE-based V2X technology and the NR-based V2X technology in one terminal device. Of course, the first side-line transmission technology and/or the second side-line transmission technology may be other technologies, and the embodiment of the present application is not limited thereto.

Of course, the first terminal device may adopt a unicast manner on the second time domain resource, and send the first information to the second terminal device by using the second sideline transmission technology, then the second terminal device adopts the second sideline transmission technology to correspondingly receive the first information from the first terminal device on the second time domain resource, or the first terminal device may adopt a unicast manner on the second time domain resource, and receive the first information from the second terminal device by using the second sideline transmission technology, then the second terminal device adopts the second sideline transmission technology to send the first information to the first terminal device on the second time domain resource; or, the first terminal device may also send the first information by using the second sidelink transmission technique in a multicast or broadcast manner on the second time domain resource, then there may be a plurality of terminal devices capable of receiving the first information from the first terminal device by using the second sidelink transmission technique on the second time domain resource, the second terminal device may be one of the terminal devices, the second terminal device may also be capable of receiving the first information from the first terminal device by using the second sidelink transmission technique on the second time domain resource, or, the second terminal device may also send the first information by using the second sidelink transmission technique on the second time domain resource, then there may be a plurality of terminal devices capable of receiving the first information from the second terminal device by using the second sidelink transmission technique on the second time domain resource, the first terminal device may be one of the terminal devices, the first terminal device is also able to receive the first information from the second terminal device on the second time domain resource using the second sidelink transmission technique.

In the embodiment of the present application, two concepts are also involved, namely, a first link and a second link of the terminal device, where the first link is used for transmitting information through a first sidelink transmission technology, and the second link is used for transmitting information through a second sidelink transmission technology, that is, both the first link and the second link are sidelink links. For example, if the first sidelink transmission technology is an LTE-based V2X technology, that is, a technology for implementing V2X communication with LTE technology as the underlying technology, and the second sidelink transmission technology is an NR-based V2X technology, that is, a technology for implementing V2X communication with NR technology as the underlying technology, the first link may be an LTE-based V2X link, and the second link may be an NR-based V2X link. The first link and the second link are synchronized with each other, where link synchronization is understood to be synchronization between time units of the links, that is, the time unit of the first link and the time unit of the second link are synchronized, so that data of the second link occupies a time domain resource of the first link. The synchronization of the first link and the second link may be achieved, for example, in such a manner that the type of the synchronization source of the first link and the type of the synchronization source of the second link are the same, or may be achieved in such a manner that the first link and the second link have a preset timing offset. The timing offset is indicated to the first terminal device by the network device, for example, by signaling, or is protocol-predefined, or may be preconfigured to the first terminal device. For example, a timing offset is an integer multiple of 1ms, or may be an integer multiple of the length of one subframe or one LTE or NR slot, and the like, which is not limited specifically. The type of synchronization source includes, for example, a satellite or a base station, etc.

In the embodiment of the present application, the concept of a timeslot refers to a duration occupied by one transmission at a specific subcarrier interval. May be 1ms, 0.5ms, 0.25ms, 0.125ms, or 0.0625ms, or other length values. The number of occupied symbols may be 14, 12, 7, 6, 4, 3, or 2, or other number of symbols, etc. For example, for an LTE system, the length of one slot is 0.5ms and the length of one subframe is 1 ms. In NR systems, the length of the next slot is different for different subcarrier spacings and can be simply considered as 1ms divided by an integer multiple of 2. In addition, the NR system also supports transmission of mini-slots (mini-slots), i.e., transmission of slots made with only partial symbols.

However, the first link and the second link may have respective candidate synchronization sources, and the type of the candidate synchronization source of the first link and the type of the candidate synchronization source of the second link may be different. In the embodiment of the present application, if the first link and the second link are to be synchronized with each other in such a manner that the type of the synchronization source of the first link and the type of the synchronization source of the second link are made the same, the first terminal device may determine, as the synchronization source of the first link and the synchronization source of the second link, a candidate synchronization source having a higher priority among them, if the type of the candidate synchronization source of the first link and the type of the candidate synchronization source of the second link are different. For example, if the type of the candidate synchronization source of the first link is a satellite, the type of the candidate synchronization source of the second link is a base station, and the priority of the base station is higher than that of the satellite, the first terminal device may determine that the base station is used as the synchronization source of the first link and the synchronization source of the second link, so that the synchronization source with the highest priority may be used as the standard. Or, if the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device may determine that the synchronization source of the first link is the synchronization source of the second link, which is equivalent to taking the first link as a reference, and in this way, the protocol content corresponding to the first link may not be changed as much as possible, or the protocol content corresponding to the first sidelink transmission technology may not be changed as much as possible. Or, if the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device may obtain the timing of the second link according to the timing of the first link, thereby completing the synchronization of the first link and the second link, which is also equivalent to that the first link is taken as the reference, and the synchronization of the second link is achieved under the condition that the protocol content corresponding to the first link is not changed as much as possible.

The first terminal device may obtain a time domain resource for the first link, that is, a first time domain resource, where the first time domain resource may include a time domain resource for the first link allocated to a plurality of terminal devices, and the plurality of terminal devices includes the first terminal device, or the first time domain resource may only include a time domain resource for the first link allocated to the first terminal device. For example, the network device may send the configuration information to the first terminal device, and after the first terminal device receives the configuration information from the network device, the first terminal device may determine the first time domain resource used for the first link according to the configuration information, for example, the network device may send the configuration information to the first terminal device through a broadcast message or a Radio Resource Control (RRC) message, and the like. In the embodiment of the present application, the resource used for the first link may also be understood as a resource used for the first sidelink transmission technology, and correspondingly, the resource allocated to the first link may also be understood as a resource allocated to the first sidelink transmission technology.

As an implementation of the first time domain resource, the first terminal device may specifically acquire the transmission resource allocated to the first link and/or acquire the reception resource allocated to the first link, that is, acquire the transmission resource allocated to the first link or the reception resource allocated to the first link or acquire the transmission resource allocated to the first link and the reception resource allocated to the first link, and the first time domain resource may include the transmission resource allocated to the first link and/or the reception resource allocated to the first link. For example, the network device may explicitly indicate to the first terminal device the transmission resources allocated to the first link and/or the reception resources allocated to the first link via the configuration information. The second time domain resource determined by the first terminal device may belong to the transmission resource or the reception resource allocated to the first link, so that it may be determined whether the second time domain resource is a transmission or a reception. In addition, the first terminal device may further send third indication information, where the third indication information may be sent to the second terminal device separately, or may also be sent in a broadcast or multicast manner, and in short, the second terminal device may receive the third indication information from the first terminal device, and the third indication information may be used to indicate a transmission resource and/or a reception resource for the first link included in the first time domain resource, so that the second terminal device may also more conveniently determine the second time domain resource.

For example, the network device may also allocate a common resource for the first link and the second link, and it may be considered that the common resource may serve as a resource for the first link or a resource for the second link. The portion of common resources may comprise transmission resources and/or reception resources, i.e. comprise transmission resources or reception resources, or comprise both transmission resources and reception resources. For example, the first terminal device may obtain the first time domain resource, which may include obtaining a transmission resource for the second link simultaneously allocated to the first link and the first terminal device, and/or obtain a reception resource for the second link simultaneously allocated to the first link and the first terminal device, that is, may obtain a transmission resource for the second link simultaneously allocated to the first link and the first terminal device, or obtain a reception resource for the second link simultaneously allocated to the first link and the first terminal device, or obtain a transmission resource for the second link simultaneously allocated to the first link and the first terminal device, and obtain a reception resource for the second link simultaneously allocated to the first link and the first terminal device. Then, the first link and the second link may be used for transmission while the transmission resources allocated to the first link and the second link may be used for reception while the reception resources allocated to the first link and the second link may be used for reception, so that the first terminal device may more conveniently select the transmission resources or the reception resources. The second time domain resource may belong to a transmit resource or a receive resource allocated to both the first link and the second link. If, of course, the first time domain resources comprise transmission resources for the second link, which are allocated to both the first link and said first terminal device, and/or, receiving resources for a second link allocated to a first link and said first terminal device simultaneously, the first terminal device may transmit the fourth indication information, the fourth indication information may be transmitted to the second terminal device separately, or may be transmitted by broadcast or multicast, etc., in short, the second terminal device may receive the fourth indication information from the first terminal device, and the fourth indication information may be used to indicate the transmission resources for the second link allocated to the first link and the first terminal device at the same time, and/or, and receiving resources which are simultaneously allocated to the first link and the first terminal equipment and are used for the second link, so that the second terminal equipment can also clearly determine the mode of allocating the resources by the network equipment.

In addition, if the network device allocates a common resource for the first link and the second link, that is, determines a transmission resource for the second link simultaneously allocated to the first link and the first terminal device, and/or determines a reception resource for the second link simultaneously allocated to the first link and the first terminal device, the network device may further allocate a resource for only the second link for the first terminal device to better transmit data of the second link. For example, the network device may configure, for the first terminal device, the resource allocated to the first terminal device only for the second link through the configuration information, and after receiving the configuration information, the terminal device may determine the resource allocated to the first terminal device only for the second link. If the resource allocated to the first terminal device for only the second link may include a transmission resource and/or a reception resource, the first terminal device may determine the transmission resource allocated to the first terminal device for only the second link and/or determine the reception resource allocated to the first terminal device for only the second link, that is, the first terminal device may determine the transmission resource allocated to the first terminal device for only the second link or the reception resource allocated to the first terminal device for only the second link or determine the transmission resource allocated to the first terminal device for only the second link and the reception resource allocated to the first terminal device for only the second link. If the network device also configures, for the first terminal device, the resource allocated to the first terminal device and only used for the second link, the first terminal device may also send fifth indication information, where the fifth indication information may be sent to the second terminal device separately, or may also be sent in a broadcast or multicast manner, and in short, the second terminal device may receive the fifth indication information from the first terminal device, and the fifth indication information may be used to indicate the resource allocated to the first terminal device and only used for the second link, so that the second terminal device may more specifically indicate the resource selected by the first terminal device and used for transmitting the data of the second link. As an alternative, the resource allocated to the first terminal device for only the second link indicated by the fifth indication information may include a transmission resource allocated to the first terminal device for only the second link and/or a reception resource allocated to the first terminal device for only the second link.

In the embodiment of the present application, the resource used for the second link may also be understood as a resource used for the second sidelink transmission technology, and correspondingly, the resource allocated to the second link may also be understood as a resource allocated to the second sidelink transmission technology.

In this embodiment, the first terminal device may further obtain the second time domain resource. The first terminal device may obtain the second time domain resource in different manners.

For example, the network device may send first indication information to the first terminal device, where the first indication information is used to indicate the second time domain resource, and then the first terminal device may determine the second time domain resource according to the first indication information after receiving the first indication information from the network device. If the first terminal device acquires the second time domain resource in this way, the order of S31 and S32 may be arbitrary, for example, S31 may be performed before S32, S31 may be performed after S32, or S31 and S32 may be performed simultaneously.

Or, the first terminal device may also determine the second time domain resource according to the first time domain resource by itself, for example, the first terminal device operates in a mode of selecting resources (for example, NR mode 4), and then the first terminal device may determine the second time domain resource according to the first time domain resource by itself. The embodiment of the present application does not limit the manner in which the first terminal device determines the second time domain resource. If the first terminal device acquires the second time domain resource in this manner, S31 may be performed first, and then S32 may be performed.

It should be noted that the second time domain resource allocated to the terminal device for transmitting the second link is the time domain resource additionally determined by the terminal device according to the first time domain resource, and is not the time domain resource allocated to the terminal device by the network device itself for the second link. It is to be understood that, in the embodiment of the present application, the terminal device may utilize the resource allocated to the first link by itself for the second link to transmit data, and as to whether the terminal device is also allocated a resource dedicated to the second link by itself, the embodiment of the present application is not limited.

For example, in a case that the first information has a higher requirement on the time delay, or is more important or urgent, the first terminal device may only send or receive the first information on the second time domain resource by using the second sidelink transmission technique, and does not need to allocate to the resource of the second sidelink transmission technique and also send or receive the first information by using the second sidelink transmission technique, that is, the transmission of the first information may only use the second time domain resource. In this way, more transmission opportunities can be provided for services with higher or more important or more urgent requirements on time delay as much as possible.

Or, in another case, if the data size of the first information is large, the first terminal device may send or receive the first information on the third time domain resource by using the second sidelink transmission technique, in addition to sending or receiving the first information on the second time domain resource by using the second sidelink transmission technique, that is, the first terminal device sends or receives the first information on the second time domain resource and the third time domain resource by using the second sidelink transmission technique, and the second terminal device correspondingly receives or sends the first information on the second time domain resource and the third time domain resource by using the second sidelink transmission technique. The third time domain resource may be a resource for transmitting information using the second sidelink transmission technique. By the method, the service with larger data volume can be completely transmitted as much as possible, and the time delay of service transmission is reduced.

If the first terminal device is to receive the first information on the second time domain resource by using the second sidelink transmission technique, the second terminal device is a receiving end of the first information, and if the first terminal device is to receive the first information on the second time domain resource by using the second sidelink transmission technique, the second terminal device is a sending end of the first information. For example, the terminal device may send second indication information to the second terminal device, where the second indication information may be used to indicate a second time domain resource, and after receiving the second indication information from the first terminal device, the second terminal device may determine the second time domain resource, so that the first information may be correspondingly received or sent on the second time domain resource by using a second sidelink transmission technique. Wherein, in order to ensure that the second terminal device can correctly receive the second indication information, the terminal device may send the second indication information to the second terminal device on the resource for the second sidelink transmission technology.

For example, the time domain position for transmitting the second indication information and the time domain position where the second time domain resource is located may be separated by a predetermined interval or more. The predetermined interval is indicated by the network device, for example by signalling, or predefined by a protocol, or may be preconfigured for the terminal device. The predetermined interval may be greater than 0, which is equivalent to a certain time interval between the second indication information and the second time domain resource, so that the second terminal device may have a sufficient response time after receiving the second indication information, and thus may receive or transmit the second indication information in time on the second time domain resource, or the predetermined interval may also be 0, that is, the time domain position where the second indication information is transmitted and the time domain position where the second time domain resource is located may be adjacent.

The second indication information may have various indication modes. For example, the second indication information may be information indicating a time window in which the second time domain resource is located, for example, each time window has a fixed time domain position and length, and the like, the information of the time window indicated by the second indication information only needs to be a number of the time window, or the information of the time window indicated by the second indication information may be a time domain starting position and a duration of the time window, or the information of the time window indicated by the second indication information may be a time domain ending position and a duration of the time window, or the information of the time window indicated by the second indication information may be a time domain starting position and a time domain ending position of the time window. Or there may be no concept of a time window, the second indication information may indicate a time domain starting position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain ending position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain starting position and a time domain ending position of the second time domain resource, and so on. The position indicated by the second indication information may be a number of a subframe or a number of a time slot at a specific time subcarrier interval, etc., for example, the time domain starting position indicated by the second indication information may be a number of a subframe where the time domain starting position is located or a number of a time slot at a specific time subcarrier interval, and the time domain ending position indicated by the second indication information may be a number of a subframe where the time domain ending position is located or a number of a time slot at a specific time subcarrier interval, etc.

For example, in the embodiment of the present application, LTE-V2X and NR-V2X may be transmitted in a Time Division Multiplexing (TDM) mode, that is, the first link and the second link may be transmitted in a TDM mode, or the first side-row transmission technology and the second side-row transmission technology may operate in a TDM mode. For example, the network device may configure, in advance, the time domain resource of the first link and the time domain resource of the second link for the first terminal device, or may also configure, in a preconfigured manner, the time domain resource of the first link and the time domain resource of the second link for the first terminal device, and the time domain resource of the first link and the time domain resource of the second link for the first terminal device may be time domain resources orthogonal to each other, that is, for the first terminal device, the first link and the second link may operate in a TDM mode, and it can be seen that, in this embodiment of the present application, the LTE-V2X and the NR-V2X implement coexistence in one terminal device in a TDM manner. For the first terminal device, the resource allocated to the first link and the resource allocated to the second link may be located on the same carrier, or may be located on different carriers, and how to implement TDM is described below.

For example, LTE-V2X and NR-V2X may be TDM transmissions on the same carrier. For example, referring to fig. 4A, one box represents one subframe (subframe) or one slot (slot), on carrier 0, the box identified as 1 is a time domain resource for the first link allocated to the first terminal device, and the box identified as 0 is a time domain resource for the second link allocated to the first terminal device, and it can be seen that the resource for the first link and the resource for the second link are located on the same carrier. With this configuration, for the first terminal device, the first link and the second link may each implement communication on orthogonal time domain resources.

LTE-V2X and NR-V2X may also be TDM transmitted on different carriers. For example, referring to fig. 4B, on carrier 0, the box identified as 1 is the time domain resource for the first link allocated to the first terminal device; on carrier 1, the box identified as 0 is the time domain resource allocated to the first terminal device for the second link. In a scenario of intra-band (intra-band) Carrier Aggregation (CA), transmission on carrier 0 and transmission on carrier 1 have a half-duplex effect, that is, when a first terminal device transmits information on carrier 0, the first terminal device cannot receive information on the same time domain resource on carrier 1, and similarly, when the first terminal device receives information on carrier 1, the first terminal device cannot transmit information on the same time domain resource on carrier 0. Therefore, the embodiment of the present application determines the resource allocation manner shown in fig. 4B, and on different carriers, the time domain resource allocated to the first link and the time domain resource allocated to the second link are completely orthogonal in time, so that the half-duplex problem of LTE-V2X and NR-V2X under intra-band can be overcome.

As a first way for the first terminal device to determine the second time domain resource, if the first time domain resource is a time domain resource for the first sidelink transmission technology allocated to the first terminal device, the first terminal device may preempt part or all of the first time domain resource as the second time domain resource. By this way of preemption, more transmission opportunities are provided for the data of the second link. For example, when the priority of the data of the second link is higher, or the requirement for the delay is higher, or is more urgent or important, the data can be transmitted in this way, so as to ensure the service requirement as much as possible.

For example, for the case shown in fig. 4A where the resource allocated to the first link and the resource allocated to the second link are located on the same carrier, the block labeled 1 is the time domain resource for the first link allocated to the first terminal device, but the first terminal device may also preempt this portion of resources when transmitting information over the second link. For example, referring to fig. 4C, two boxes denoted by 1 are encircled by a dashed box, and although the time domain resource allocated to the first terminal device for the first link is used, the second link of the first terminal device preempts the resource and can be used for transmitting information of the second link.

For another example, in the case that the resource allocated to the first link and the resource allocated to the second link are located in different carriers as shown in fig. 4B, normally, when the first link transmits data, the second link should also transmit on another carrier on the same time resource, which does not violate the half-duplex restriction. However, since the time domain resources are allocated according to the TDM mode when the time domain resources are allocated, when the first terminal equipment transmits information on the first link, the information cannot be transmitted on the second link on another carrier on the same time resources, which is a great waste of the time frequency resources. Therefore, the embodiment of the present application proposes that, for a case where a resource allocated to a first link and a resource allocated to a second link are located on different carriers, the second link may also occupy the same time domain resource as the first link, thereby improving the utilization rate of time-frequency resources. For example, referring to fig. 4D, two boxes labeled 0 are enclosed on carrier 1 by a dashed line, and although the portion of the time domain resources is the time domain resources allocated to the first terminal device for the first link, the second link of the first terminal device preempts the portion of the time domain resources, which can be used for transmitting data of the second link.

In the embodiment of the application, the first terminal device can realize the transmission of the second link through a chip supporting NR-V2X, and realize the transmission of the first link through a chip supporting LTE-V2X, and by installing the two chips, the coexistence of LTE-V2X and NR-V2X in the first terminal device is also realized. For example, a chip supporting NR-V2X is referred to as an NR module, and a chip supporting LTE-V2X is referred to as an LTE module, it is understood that the NR module can preempt resources allocated to the LTE module. Then, to enable the NR module to preempt the resources allocated to the LTE module, the NR module needs to know the specific resources allocated to the LTE module. For example, the LTE module may actively send the transmission resource and/or the reception resource for the first link of the first terminal device to the NR module, or the LTE module may also send the transmission resource and/or the reception resource for the first link of the first terminal device to the NR module after receiving the request sent by the NR module, and then the NR module may determine the transmission resource and/or the reception resource for the first link of the first terminal device, specifically, may determine the transmission resource or the reception resource for the first link of the first terminal device, or determine the transmission resource and the reception resource for the first link of the first terminal device, so that the NR module may preempt the resource of the first link.

In addition, although it is described in the foregoing that the first time domain resource includes the second time domain resource, or the second time domain resource belongs to the first time domain resource, it should be clarified that "including" or "belonging" herein describes only a relation in the time domain, and in the frequency domain, the two relations are not necessarily the same, that is, the embodiment of the present application does not limit the relation between the frequency domain resource corresponding to the first time domain resource and the frequency domain resource corresponding to the second time domain resource, and is flexible. For example, a first terminal device transmits or receives data on a first frequency domain resource of a first time domain resource through a first link, and the first terminal device transmits or receives data on a second frequency domain resource of a second time domain resource through a second link, where the first frequency domain resource and the second frequency domain resource may be the same or different. If the first frequency-domain resource and the second frequency-domain resource are different, the first frequency-domain resource and the second frequency-domain resource may be located in different Physical Resource Blocks (PRBs), or in different subchannels, or in different resource pools, or in different fractional Bandwidths (BWPs), or in different carriers, etc. For example, in fig. 4C, two boxes denoted by 1 and encircled by a dashed line box are occupied by the second link, and then on the carrier 0, the first terminal device may send data on the time domain resource through both the first link and the second link, where the frequency domain resource corresponding to the first time domain resource and the frequency domain resource corresponding to the second time domain resource are the same. For another example, in fig. 4D, two boxes marked with 1 on the carrier 1 and encircled by a dashed line frame are occupied by the second link, for example, on the carrier 0, the first terminal device sends data on the time domain resource through the first link, on the carrier 1, the first terminal device sends data on the time domain resource through the second link, and at this time, the frequency domain resource corresponding to the first time domain resource and the frequency domain resource corresponding to the second time domain resource are different and located on different carriers.

In the first manner that the terminal device determines the second time domain resource, the first terminal device is a resource that causes the second link to preempt the first link, and then on the resource of the first link preempted by the second link, it is likely that the first terminal device is transmitting or receiving data through the first link. For example, when the first condition is satisfied and the first terminal device performs the reception detection on the second time domain resource through the first link, the first terminal device may stop performing the reception detection on the second time domain resource, and/or, when the first condition is satisfied and the first terminal device has the first data to be transmitted on the second time domain resource through the first link, the first terminal device may stop transmitting the first data on the second time domain resource (or adjust the transmission power of the first data from the first transmission power to the second transmission power and transmit the first data on the second time domain resource through the first link according to the second transmission power), that is, when the first terminal device performs the reception detection on the second time domain resource through the first link, the first terminal device may stop performing the reception detection on the second time domain resource, or, when the first terminal device has the first data to be transmitted on the second time domain resource through the first link, the first terminal equipment stops transmitting the first data through the first link at the second time domain resource (or adjusts the transmission power of the first data from the first transmission power to the second transmission power and transmits the first data on the second time domain resource through the first link according to the second transmission power), or, when the first terminal device performs reception detection on the first link on the second time domain resource, the first terminal device may stop performing reception detection on the first link on the second time domain resource, and, when the first terminal device has first data to be transmitted on the second time domain resource over the first link, the first terminal equipment stops transmitting the first data through the first link at the second time domain resource (or adjusts the transmission power of the first data from the first transmission power to the second transmission power, and transmits the first data through the first link at the second time domain resource according to the second transmission power). In this way, it can be preferentially ensured that the data of the second link is transmitted on the second time domain resource.

Taking the transmission as an example, when the first terminal device has the first data to be transmitted through the first link on the second time domain resource, the first terminal device stops transmitting the first data through the first link on the second time domain resource, and only transmits the data of the second link on the second time domain resource, or only transmits the data through the second link on the second time domain resource. Or, when there is first data to be transmitted through the first link on the second time domain resource, the first terminal device may also adjust the transmission power of the first data from the first transmission power to the second transmission power, and transmit the first data on the second time domain resource through the first link according to the second transmission power, for example, the second transmission power is lower than the first transmission power, which is equivalent to reducing the transmission power of the data of the first link, so that the data of the first link and the data of the second link may be simultaneously transmitted on the second time domain resource, thereby implementing simultaneous transmission of the data and improving the data transmission efficiency.

In order to make the preemption of the second link with respect to the resource of the first link more meaningful, in this application, the second link is to preempt the resource of the first link, or to implement that when the first terminal device performs the reception detection on the second time domain resource through the first link, the first terminal device may stop performing the reception detection on the second time domain resource, and/or when the first terminal device has the first data to be transmitted through the first link on the second time domain resource, the first terminal device may stop transmitting the first data on the second time domain resource (or adjust the transmission power of the first data from the first transmission power to the second transmission power, and transmit the first data on the second time domain resource through the first link according to the second transmission power), which may be in a case that the second link satisfies the first condition, or in a case that the data of the second link satisfies the first condition, in such an embodiment, if the second link does not satisfy the first condition, the second link may not be caused to preempt resources of the first link.

The first condition includes, for example, at least one of:

the priority of the data transmitted by the first terminal equipment through the second link is higher than that of the data transmitted by the terminal equipment through the first link;

the priority of the data transmitted by the first terminal equipment through the first link is lower than a first preset priority;

the transmission delay of the data transmitted by the first terminal equipment through the second link is less than the preset delay;

the transmission delay of the data transmitted by the first terminal equipment through the second link is less than a preset delay, and the priority of the data transmitted by the first terminal equipment through the second link is higher than a preset priority;

the transmission distance of the data transmitted by the first terminal equipment through the second link is smaller than the preset distance, and the priority of the data transmitted by the first terminal equipment through the second link is higher than the preset priority;

the data packet size of the data transmitted by the first terminal equipment through the second link is smaller than a preset value, and the priority of the data transmitted by the first terminal equipment through the second link is higher than a second preset priority; or the like, or, alternatively,

the transmission power of the data transmitted by the first terminal device through the second link is less than the predetermined transmission power, and the priority of the data transmitted by the first terminal device through the second link is higher than the predetermined priority.

For example, the first condition includes that the priority of the data transmitted by the first terminal device through the second link is higher than the priority of the data transmitted by the first terminal device through the first link, that is, it is ensured that the second link preempts the resource of the first link when the priority of the data of the second link is higher, and similarly, if the first condition includes that the priority of the data transmitted by the first terminal device through the first link is lower than the first predetermined priority, that is, it is ensured that the second link preempts the resource of the first link when the priority of the data of the first link is lower, it is ensured that the data with the high priority can be sent in time as much as possible, and the influence on the data of the first link is also reduced.

For example, the first condition includes that the transmission delay of the data transmitted by the first terminal device through the second link is smaller than a predetermined delay, the transmission delay is small, and the service is likely to be urgent, so that the second link can occupy the resource of the first link, and more transmission opportunities are provided for the urgent service as much as possible.

For another example, the first condition includes that the transmission power of the data transmitted by the first terminal device through the second link is less than a predetermined transmission power, and the priority of the data transmitted by the first terminal device through the second link is higher than a predetermined priority. For example, the transmission power of the data transmitted by the first terminal device through the second link is less than the predetermined transmission power, and the transmission power currently allocated for the second link does not meet the requirement of quality of service (QoS) of the second link (less than the predetermined transmission power). Further, if the priority of the second link is higher than the predetermined priority, it indicates that the transmission power needs to be further increased for the second link, otherwise the data transmitted by the second link is not affected acceptably. Therefore, it is possible to ensure the rationality of transmission power allocation by taking the condition of determining whether or not more or higher transmission power is configured for the second link in this manner.

There are no more examples of other items that the first condition may include.

In the first way described above, in which the first terminal device determines the second time domain resource, if the first time domain resource is the time domain resource allocated to the first terminal device, the first terminal device may preempt part or all of the first time domain resource as the second time domain resource. As a second way for the first terminal device to determine the second time domain resource, if the first time domain resource is a time domain resource allocated to a plurality of terminal devices, and the plurality of terminal devices includes the first terminal device, the second link of the first terminal device may utilize a resource that is not utilized by the first link of the first terminal device in the first time domain resource.

In this case, the second time domain resource may belong to a subframe of the first link of the first terminal device outside the measurement operation in the first time domain resource, and/or the second time domain resource belongs to a subframe of the first link of the first terminal device in the first time domain resource that does not transmit data. The measurement operation includes, for example, decoding of control information, or measurement based on Received Signal Strength Indicator (RSSI) transmitted on sidelink. Optionally, the subframe of the measurement operation is a subset of the first time domain resource. The subframe of the measurement operation may be indicated to the second link by an internal implementation manner of the first terminal device, or may be indicated to the second link by a signaling manner. The signaling may be sent by the network device or pre-configured.

In addition, in this embodiment of the present application, the first time domain resource is a transmission resource of mode 1 or mode 3 for the first link, and the second time domain resource is a transmission resource of mode 1 for the second link; or, the first time domain resource is a transmission resource of mode 1 or mode 3 for the first link, and the second time domain resource is a transmission resource of mode 2 for the second link; or, the first time domain resource is a transmission resource of mode 2 or mode 4 for the first link, and the second time domain resource is a transmission resource of mode 1 for the second link; or, the first time domain resource is a mode 2 or mode 3 transmission resource for the first link, and the second time domain resource is a mode 2 transmission resource for the second link.

The first link is, for example, a LTE-based V2X link, and the second link is, for example, an NR-based V2X link, so that mode 1 of the first link refers to a mode in which the network device performs uplink, downlink, or sidelink transmission once when scheduled; mode 3 of the first link refers to a mode in which the network device performs uplink, downlink or sidelink transmission for a period of time when scheduled once; the mode 2 of the second link refers to a mode that the terminal equipment automatically selects resources to transmit data according to the selection mode of random resources, and does not depend on the scheduling of network equipment; the mode 4 of the second link refers to a mode in which the terminal device selects resources to transmit data according to a selection mode of measurement and monitoring.

For example, the first sidelink transmission technology is a LTE-based V2X technology, and the second sidelink transmission technology is an NR-based sidelink transmission technology, and it can be seen that the technical solution provided in the embodiment of the present application realizes coexistence of the two technologies in the first terminal device. In the embodiment of the present application, the second time domain resource belongs to the first time domain resource, and for example, when data is transmitted through the second link, the resource allocated to the first link can also be utilized for transmission, so as to provide more transmission opportunities for the data of the second link. For example, the data of the second link may have a higher requirement for delay, or the priority of the service is higher, more important, or more urgent, so that the resource allocated to the first link can be utilized when the data is transmitted through the second link, which is helpful to meet the requirement of the service having a higher requirement for delay, or the priority of the service is higher, more important, or more urgent as much as possible, for example, the transmission delay may be reduced.

In the embodiment shown in fig. 3, the network device may be allocated in a TDM mode when allocating resources for the first link and the second link. However, if the network device allocates resources for the first link and the second link in a Frequency Division Multiplexing (FDM) mode, a corresponding method is required to determine how to allocate the transmission power for the first link and the second link. In view of this, a method of determining transmission power in which transmission power allocated for the first link and the second link can be determined is described below.

The embodiment of the present application provides a first method for determining a transmission power, please refer to fig. 5, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 1 or fig. 2 as an example. In addition, the method may be performed by two communication apparatuses, for example, a third communication apparatus and a fourth communication apparatus, where the third communication apparatus may be a network device or a communication apparatus capable of supporting the network device to implement the functions required by the method, or the third communication apparatus may be a terminal device or a communication apparatus capable of supporting the terminal device to implement the functions required by the method, and of course, other communication apparatuses such as a system on chip may also be used. The same applies to the fourth communication apparatus, which may be a network device or a communication apparatus capable of supporting the network device to implement the functions required by the method, or a terminal device or a communication apparatus capable of supporting the terminal device to implement the functions required by the method, and of course, may also be other communication apparatuses, such as a system on a chip. The implementation manners of the third communication device and the fourth communication device are not limited, for example, the third communication device may be a network device, the fourth communication device is a terminal device, or the third communication device is a network device, the fourth communication device is a communication device capable of supporting the terminal device to implement the functions required by the method, and so on. The network device is, for example, a base station.

For convenience of introduction, in the following, the method is taken as an example executed by a network device and a terminal device, that is, the third communication device is a network device, and the fourth communication device is a terminal device. If the present embodiment is applied to the network architecture shown in fig. 1, the network device described below may be a network device in the network architecture shown in fig. 1, and the first terminal device described below may be the terminal device 1 in the network architecture shown in fig. 1, and if the present embodiment is applied to the network architecture shown in fig. 2, the network device described below may be a network device in the network architecture shown in fig. 2, and the first terminal device described below may be a terminal device in the network architecture shown in fig. 2. Of course, although the present embodiment may be used for the network architecture shown in fig. 2, in the present embodiment, the second transmission power determined by the first terminal device is the transmission power used for communication between the first terminal device and the second terminal device.

S51, a first terminal device obtains a first transmit power and a maximum transmit power, where the first transmit power is a transmit power used for the first terminal device to transmit data by using a first sidelink transmission technique, and the maximum transmit power is the maximum transmit power of the first terminal device, and a resource allocated to a first link and a resource allocated to a second link are frequency division multiplexed;

s52, the first terminal device determines a second transmit power according to the first transmit power and the maximum transmit power, where the second transmit power is a transmit power used for the first terminal device to transmit data by using a second side-row transmission technique.

With regard to the concepts of the first side-line transmission technology, the second side-line transmission technology, the first link and the second link, etc., reference may be made to the description of the embodiment shown in fig. 3.

In this embodiment of the present application, the first terminal device may transmit information by using a first sideline transmission technology, or may transmit information by using a second sideline transmission technology, and as for the first terminal device, the first sideline transmission technology may be used to transmit information, or the second sideline transmission technology may be used to transmit information, so that coexistence of two sideline transmission technologies in one terminal device is achieved. For example, the first sidelink transmission technology is the LTE-based V2X technology, and the second sidelink transmission technology is the NR-based V2X technology, the embodiment of the present application also implements coexistence of the LTE-based V2X technology and the NR-based V2X technology in one terminal device.

In addition, in the embodiment of the present application, the first link and the second link may also be synchronized with each other, and as to the content of the synchronization between the first link and the second link and how to implement the synchronization, reference may also be made to the description in the embodiment shown in fig. 3.

In the embodiment of the present application, the resource allocated to the first link and the resource allocated to the second link are frequency division multiplexed, that is, the first link and the second link may transmit data on the same carrier or on different carriers at the same time.

If the resource allocated to the first link and the resource allocated to the second link are located on the same carrier, simultaneous transmission or simultaneous reception of data on different frequency domain locations of the same carrier may be achieved, for example, referring to fig. 6A, which is an illustration that the resource allocated to the first link and the resource allocated to the second link are located on the same carrier, in fig. 6A, for example, the subcarrier interval of the resource allocated to the first link and the subcarrier interval of the resource allocated to the second link are both 15 kHz. Simultaneous transmission or simultaneous reception of data on different carriers may be achieved if the resources allocated to the first link and the resources allocated to the second link are located on different carriers. Referring to fig. 6B and 6C, two schematic diagrams of the resources allocated to the first link and the resources allocated to the second link being located on different carriers are shown, where in fig. 6B, for example, the subcarrier spacing of the resources allocated to the first link is 15kHz, the subcarrier spacing of the resources allocated to the second link is 30kHz, the length of one time unit of the resources allocated to the first link is 2 times the length of one time unit of the resources allocated to the second link, and in fig. 6C, for example, the subcarrier spacing of the resources allocated to the first link is 15kHz, the subcarrier spacing of the resources allocated to the second link is 60kHz, and the length of one time unit of the resources allocated to the first link is 4 times the length of one time unit of the resources allocated to the second link.

The maximum transmission power may be, for example, the maximum transmission power of the first terminal device on one carrier, or the total maximum transmission power of the first terminal device on multiple carriers of the same frequency band, or the maximum transmission power configured for the first terminal device by the network device, or the maximum transmission power or the maximum available transmission power of the first terminal device on the current subframe, timeslot, or symbol, or the maximum transmission power configured for the current control channel or data channel of the first terminal device by the network device, or the maximum transmission power configured for the first terminal device by the network device. If the maximum transmission power is the maximum transmission power of the first terminal device on one carrier or the total maximum transmission power of the first terminal device on multiple carriers of the same frequency band, it may be understood that the maximum transmission power is the maximum transmission power supported by the actual capability of the first terminal device, and if the maximum transmission power is the maximum transmission power configured by the network device for the first terminal device, the configured maximum transmission power may be less than or equal to the maximum transmission power supported by the actual capability of the first terminal device.

The first transmit power and/or the maximum transmit power may be, for example, the first transmit power and/or the maximum transmit power that is sent by the network device to the first terminal device through signaling, and the first terminal device may obtain the first transmit power and/or the maximum transmit power after receiving the signaling from the network device, where the signaling is, for example, a broadcast message or RRC signaling, or the first transmit power and/or the maximum transmit power may also be predefined by a protocol, or the first transmit power and/or the maximum transmit power may also be preconfigured to the first terminal device. The first transmission power and/or the maximum transmission power specifically include the first transmission power or the maximum transmission power, or the first transmission power and the maximum transmission power.

As an alternative, the first transmit power may be equal to the maximum transmit power, which may correspond to no allocation of transmit power to the second sidelink transmission technique, and all transmit power allocated to the first sidelink transmission technique. For example, when the priority of data transmitted by the first sideline transmission technology is higher, or more urgent or more important, this mode may be considered, so as to ensure that the high-priority or more important or more urgent service can be transmitted preferentially. Alternatively, as another alternative, the first transmit power may be equal to 0, which is equivalent to not allocating transmit power to the first sidelink transmission technique, and allocating all transmit power to the second sidelink transmission technique. For example, when the priority of the data transmitted by the second sidelink transmission technology is higher, or more urgent or more important, this mode may be considered, so as to ensure that the high-priority or more important or more urgent service can be transmitted preferentially.

As a way of determining the second transmission power, the first terminal device may determine the second transmission power from a difference between the maximum transmission power and the first transmission power.

After obtaining the first transmission power and the maximum transmission power, if the resource allocated to the first link and the resource allocated to the second link are located in the same carrier, the first terminal device may determine the second transmission power according to the following manner:

P₂＝P_cmax–P₁(formula 1)

Wherein, P_cmaxIndicating the maximum transmission power of the first terminal device on one carrier, may be the maximum transmission power obtained by the first terminal device through S51, P₁Representing a first transmission power, P₂Indicating the second transmit power.

Or, if the resource allocated to the first link and the resource allocated to the second link are located in different intra-band carriers, the first terminal device may determine the second transmission power according to the following manner:

P₂＝P_cmax2+(P_cmax1-P₁) (formula 2)

Or the first terminal device may also determine the second transmission power according to:

P₂＝P_max-P₁(formula 3)

Wherein, P_cmax2Indicating the maximum transmission power, P, of the first terminal device on the carrier on which the resource allocated to the second link is located_cmax1Indicating the maximum transmission power, P, of the first terminal device on the carrier on which the resource allocated to the first link is located_maxWhich represents the total maximum transmission power of the first terminal device on multiple carriers of the same frequency band, and the values of these parameters may all be obtained by the terminal device through S51.

As another way to determine the second transmission power, the first terminal device may also determine the second transmission power according to a difference between the maximum transmission power and the first transmission power, and a path loss between the first terminal device and the network device, or the first terminal device may determine the second transmission power according to a difference between the maximum transmission power and the first transmission power, and a third power, for example, a power determined according to a path loss between the first terminal device and the network device.

For example, the first terminal device determines the second transmission power according to the difference between the maximum transmission power and the first transmission power, and according to the third power, one embodiment is as follows:

the second transmission power is determined by: min { P_max-P₁,P₃Where min { a, b } denotes taking a smaller number between the values a and b, P_maxIs the maximum transmission power obtained through S51, wherein P is the maximum transmission power if the resource allocated to the first link and the resource allocated to the second link are located on the same carrier_maxIndicating the maximum transmission power of the first terminal equipment on one carrier, if the resource allocated to the first link and the resource allocated to the second link are located on different intra-band carriers, then P_maxRepresenting the total maximum transmission power, P, of the first terminal device on a plurality of carriers of the same frequency band₁Is the first transmission power, P₃Is the third power.

Wherein, P₃＝10log₁₀M+P₀+ α PL, M denotes the bandwidth of the second link, P₀And α is for determining P₃PL represents the path loss between the first terminal device to the network device.

Or in this embodiment, the first terminal device may also determine the second transmission power in other manners, for example, the first terminal device may determine the second transmission power in a manner that will be provided in the embodiment shown in fig. 7 later, which will be described in the embodiment shown in fig. 7 and will not be described herein again.

Specifically, the second transmission power is determined by adopting what manner, for example, the second transmission power may be selected by the first terminal device, or may be predefined by a protocol, or may be configured to the first terminal device by the network device through signaling, or may also be preconfigured in the first terminal device, and the like, which is not limited in the embodiment of the present application.

In the embodiment of the present application, the first link and the second link are frequency division multiplexed, and then the first link and the second link may transmit data simultaneously. However, the total transmission power of the first terminal device is limited, and if the total transmission power of the first terminal device cannot satisfy that the first link and the second link transmit data simultaneously, the embodiment of the present application may take certain measures. For example, when the first condition is satisfied, discarding the data to be transmitted through the first link at the first time domain resource, or adjusting the transmission power of the data to be transmitted through the first link at the first time domain resource from the first transmission power to the third transmission power, and then transmitting the data through the first link at the first time domain resource according to the third transmission power. Then, if the data to be transmitted through the first link at the first time domain resource is discarded, the first terminal device transmits the data through the second link at the first time domain resource with the second transmission power, or, if the transmission power of the data to be transmitted through the first link at the first time domain resource is adjusted from the first transmission power to the third transmission power, the first terminal device transmits the data through the second link at the first time domain resource with the second transmission power, and transmits the data through the first link at the first time domain resource with the third transmission power. That is, if the total transmission power of the first terminal device cannot satisfy that the first link and the second link transmit data simultaneously, the data of the first link may also be stopped from being transmitted in the first time domain resource, and it is ensured that the data of the second link can be transmitted in time in the first time domain resource as much as possible; or, if the total transmission power of the first terminal device cannot satisfy that the first link and the second link transmit data simultaneously, the transmission power of the first link may also be adjusted, one adjustment manner is, for example, to reduce the transmission power of the first link, that is, the third transmission power is smaller than the first transmission power, so that the first terminal device may transmit data simultaneously through the first link and the second link, and it is ensured that both the data of the first link and the data of the second link can be transmitted in time as much as possible.

However, it was introduced in the foregoing that to discard the data to be transmitted through the first link at the first time domain resource, or to adjust the transmission power of the data to be transmitted through the first link at the first time domain resource from the first transmission power to the third transmission power, the first condition needs to be satisfied, and if the first condition is not satisfied, the data to be transmitted through the first link at the first time domain resource may not be discarded, and the transmission power of the data to be transmitted through the first link at the first time domain resource may not be adjusted from the first transmission power to the third transmission power. It can be understood that if the first condition is satisfied, it is necessary to ensure that the data of the second link can be normally transmitted, and if the first condition is not satisfied, it is necessary to ensure that the data of the first link can be normally transmitted.

The first condition includes, for example, at least one of:

the priority of the data transmitted by the first terminal equipment through the second link is higher than that of the data transmitted by the first terminal equipment through the first link;

the transmission distance of the data transmitted by the first terminal equipment through the second link is smaller than a preset distance, and the priority of the data transmitted by the first terminal equipment through the second link is higher than a second preset priority;

the data packet size of the data transmitted by the first terminal equipment through the second link is smaller than a preset value, and the priority of the data transmitted by the first terminal equipment through the second link is higher than a second preset priority; or

The transmission power of the data transmitted by the first terminal device through the second link is less than the predetermined transmission power, and the priority of the data transmitted by the first terminal device through the second link is higher than the second predetermined priority.

For another example, the first condition includes that the transmission power of the data transmitted by the first terminal device through the second link is less than the predetermined transmission power, and the priority of the data transmitted by the terminal device through the second link is higher than the predetermined priority, for example, the transmission power of the data transmitted by the first terminal device through the second link is less than the predetermined transmission power, and the transmission power currently allocated for the second link does not meet the QoS requirement of the second link (is less than the predetermined transmission power). Further, if the priority of the second link is higher than the predetermined priority, it indicates that the transmission power needs to be further increased for the second link, otherwise the data transmitted by the second link is not affected acceptably. Therefore, it is possible to ensure the rationality of transmission power allocation by taking the condition of determining whether or not more or higher transmission power is configured for the second link in this manner.

There are no more examples of other items that the first condition may include.

The embodiment of the application provides a way of reasonably determining the second transmission power, so that the first sidelink transmission technology and the second sidelink transmission technology can coexist in the first terminal device in an FDM manner, for example, the first terminal device can determine the second transmission power, so that data can be transmitted through both the second link and the first link.

If the network device is allocated in FDM mode when allocating resources for the first link and the second link, a corresponding method is needed to determine how to allocate transmit power for the first link and the second link. In addition to the embodiment shown in fig. 5, a method of determining transmission power is described below, in which it is also possible to determine how to allocate transmission power to the first link and the second link.

A second method for determining the transmission power is provided in the embodiment of the present application, please refer to fig. 7, which is a flowchart of the method. In the following description, the method is applied to the network architecture shown in fig. 1 or fig. 2 as an example. In addition, the method may be performed by two communication apparatuses, for example, a fifth communication apparatus and a sixth communication apparatus, where the fifth communication apparatus may be a network device or a communication apparatus capable of supporting the network device to implement the functions required by the method, or the fifth communication apparatus may be a terminal device or a communication apparatus capable of supporting the terminal device to implement the functions required by the method, and may of course be other communication apparatuses such as a system on chip. The same is true for the sixth communication apparatus, which may be a network device or a communication apparatus capable of supporting the network device to implement the functions required by the method, or the sixth communication apparatus may be a terminal device or a communication apparatus capable of supporting the terminal device to implement the functions required by the method, or of course, other communication apparatuses such as a system on chip may also be used. The fifth communication device and the sixth communication device are not limited to be implemented, for example, the fifth communication device may be a network device, the sixth communication device is a terminal device, or the fifth communication device is a network device, the sixth communication device is a communication device capable of supporting the terminal device to implement the functions required by the method, and so on. The network device is, for example, a base station.

For convenience of introduction, in the following, the method is performed by the network device and the terminal device as an example, that is, the fifth communication device is the network device, and the sixth communication device is the terminal device as an example. If the present embodiment is applied to the network architecture shown in fig. 1, the network device described below may be a network device in the network architecture shown in fig. 1, and the first terminal device described below may be the terminal device 1 in the network architecture shown in fig. 1, and if the present embodiment is applied to the network architecture shown in fig. 2, the network device described below may be a network device in the network architecture shown in fig. 2, and the first terminal device described below may be a terminal device in the network architecture shown in fig. 2. Of course, although the present embodiment may be used for the network architecture shown in fig. 2, in the present embodiment, the second transmission power determined by the first terminal device is the transmission power used for communication between the first terminal device and the second terminal device.

S71, the first terminal device obtains a first ratio and a maximum transmission power, the first ratio is a ratio between a transmission power for transmitting data through the first link and a transmission power for transmitting data through the second link, or a ratio between a power spectrum density of the transmission power for transmitting data through the first link and a power spectrum density of the transmission power for transmitting data through the second link, or a ratio between a second ratio and a third ratio, the second ratio is a ratio between a power spectrum density of the transmission power for transmitting data through the first link and a subcarrier spacing used for the first link, the third ratio is a ratio between a power spectrum density of the transmission power for transmitting data through the second link and a subcarrier spacing used for the second link, the maximum transmission power is a maximum transmission power available to the first terminal device, and the first link is used for transmitting information by the first sidelink transmission technique, the first link is used for transmitting information through a second sidelink transmission technology;

s72, the first terminal device determines a first transmit power and a second transmit power according to the first ratio and the maximum transmit power, where the first transmit power is a transmit power for transmitting data through a first link, and the second transmit power is a transmit power for transmitting data through a second link.

In the embodiment of the present application, the first time domain resource is used to transmit information by using a first sideline transmission technology, and the second time domain resource is used to transmit information by using a second sideline transmission technology, so that for the first terminal device, the first sideline transmission technology may be used to transmit information, and the second sideline transmission technology may also be used to transmit information, thereby implementing coexistence of two sideline transmission technologies in one terminal device. For example, if the first sidelink transmission technology is an LTE-based V2X technology (which may also be described as LTE-V2X), and the second sidelink transmission technology is an NR-based V2X technology (which may also be described as NR-V2X), the embodiment of the present application implements coexistence of the LTE-based V2X technology and the NR-based V2X technology in one terminal device.

The first ratio may be a preset constant, predefined by a protocol, or preconfigured in the first terminal device, for example, the first ratio is equal to 1, or may be another value; or the first ratio may be a parameter that the network device indicates to the first terminal device through signaling; or the first ratio may also be calculated by the first terminal device through a parameter indicated by signaling sent by the network device.

In the embodiment of the present application, the first link and the second link are synchronized with each other, and reference may be made to the related description of the embodiment shown in fig. 5 for synchronization, selection of a synchronization source, and the like. In addition, in the embodiment of the present application, the resource allocated to the first link and the resource allocated to the second link are frequency division multiplexed, that is, the first link and the second link may transmit data on the same carrier or on different carriers at the same time. Reference may also be made to the illustrations of fig. 6A and 6B, etc., in the embodiment shown in fig. 5.

In the present embodiment, it is assumed that there is a fixed relationship between the power spectral density of the first link and the power spectral density of the second link.

As a first embodiment of the first terminal device determining the first transmission power and the second transmission power, it is assumed that the subcarrier spacing of the first link and the subcarrier spacing of the second link are the same. Because of P₁＝M₁*PSD₁,P₂＝M₂*PSD₂,P₁+P₂＝P_max,α＝PSD₁/PSD₂Thus, the first terminal device may be according to formula P₁＝α*M₁*P_max/(α*M₁+M₂) Calculating a first transmit power, and according to formula P₂＝M₂*P_max/(α*M₁+M₂) The second transmission power is calculated.

Wherein, P₁Denotes a first transmission power, and α denotes a first ratio of a power spectral density of a transmission power of the first terminal device for transmitting data through the first link to a power spectral density of a transmission power of the first terminal device for transmitting data through the second linkM, the ratio between the power spectral densities of the transmit powers₁Representing the bandwidth of the first terminal device transmitting data over the first link, M₂Representing the bandwidth of the first terminal device transmitting data over the second link, P₂Indicating the second transmission power, P_maxIndicating maximum transmit power, PSD₁Power spectral density, PSD, representing the transmit power of the first link₂A power spectral density representing a transmission power of the second link.

As a second embodiment of determining the first transmission power and the second transmission power, it is assumed that the subcarrier spacing of the first link and the subcarrier spacing of the second link are different. Because of P₁＝M₁*P_SCS1,P₂＝M₂*P_SCS2,P₁+P₂＝P_max,α＝P_SCS1/P_SCS2Thus, the first terminal device may be according to formula P₁＝α*M₁*P_max/(α*M₁+M₂) Calculating a first transmit power, and according to formula P₂＝M₂*P_max/(α*M₁+M₂) The second transmission power is calculated.

Wherein, P₁Denotes a first transmission power, alpha denotes a first ratio, where the first ratio is a ratio between a transmission power at which the first terminal device transmits data through the first link and a transmission power at which the first terminal device transmits data through the second link, and M is a ratio between the transmission power at which the first terminal device transmits data through the first link and the transmission power at which the first terminal device transmits data through the second link₁Representing the bandwidth of the first terminal device transmitting data over the first link, M₂Representing the bandwidth of the first terminal device transmitting data over the second link, P₂For the second transmission power, P_maxIndicates the maximum transmission power, P_SCS1Indicating the transmission power, P, of the first link_SCS2Indicating the transmit power of the second link.

As a third embodiment of determining the first transmission power and the second transmission power by the first terminal device, θ may be configured as the first ratio, where θ is a ratio of the second ratio to a third ratio, that is, θ is the second ratio/the third ratio. Wherein the second ratio is a power spectrum of a transmission power of the first terminal device for transmitting data through the first linkA ratio between the power spectral density of the transmission power of the first terminal device for transmitting data through the second link and the subcarrier spacing for the second link. Theta ═ P_SCS1/SCS₁)/(P_SCS2/SCS₂)＝(P_SCS1/P_SCS2)*(SCS₂/SCS₁)＝α*2^μ，α＝P_SCS1/P_SCS2。μ＝μ₂-μ₁，μ₁For the subcarrier spacing, μ, for the first link₂For the subcarrier spacing for the second link, e.g. 15kHz for the first link, then μ ₁0, subcarrier spacing for the second link is 30kHz, then μ₂When μ equals 1, μ equals 1. The first terminal device may calculate the first transmit power and the second transmit power based on θ and the maximum transmit power, e.g., in such a way that the first terminal device calculates according to formula P₁＝θ*2^-μ*M₁*P_max/(θ*2^-μ*M₁+M₂) Calculating a first transmit power, and according to formula P₂＝M₂*P_max/(θ*2^-μ*M₁+M₂) The second transmission power is calculated.

Wherein, P₁Denotes a first transmission power, theta denotes a first ratio, P₂Indicating the second transmission power, P_maxDenotes the maximum transmission power, M₁Representing the bandwidth of the first terminal device transmitting data over the first link, M₂Indicating the bandwidth over which the first terminal device transmits data over the second link.

As a fourth embodiment of the first terminal device determining the first transmission power and the second transmission power, it is assumed that the ratio between the transmission power of the first link and the transmission power of the second link, which is denoted by β, i.e. P, is fixed₁/P₂β is the first ratio. The first terminal device may be according to formula P₂＝P_maxV (1+ beta) calculating a second transmission power, and according to the formula P₁＝P_max-P₂A first transmit power is calculated.

As described above, several ways for the first terminal device to determine the first transmission power and the second transmission power are provided, in practical applications, the first terminal device may determine the first transmission power and the second transmission power in any one of the above several ways, or may also determine the first transmission power and the second transmission power in other ways, as long as the first terminal device determines the first transmission power and the second transmission power according to the first ratio and the maximum transmission power, and this embodiment of the present application does not limit the way for the first terminal device to determine the first transmission power and the second transmission power specifically according to the first ratio and the maximum transmission power. Furthermore, in the embodiment shown in fig. 5, the first terminal device may also determine the second transmission power in the manner described in the embodiment shown in fig. 7.

In addition, the second transmission power determined by the first terminal device according to the various manners as described above may be the maximum transmission power used by the first terminal device for the second link, and the transmission power actually used by the first terminal device when transmitting data through the second link may be smaller than or equal to the second transmission power. The same is true for the first transmission power, the first transmission power determined by the first terminal device according to the various manners as described above may be the maximum transmission power used by the first terminal device for the first link, and the transmission power actually used by the first terminal device when transmitting data through the first link may be smaller than or equal to the first transmission power.

Specifically, the first transmission power and the second transmission power are determined by using what manner, for example, the first transmission power and the second transmission power may be selected by the first terminal device, or may be predefined by a protocol, or may be configured to the first terminal device by the network device through signaling, or may also be preconfigured in the first terminal device, and the like, which is not limited in the embodiment of the present application.

The embodiment of the present application provides a manner capable of determining the first transmission power and the second transmission power, so that the first sidelink transmission technology and the second sidelink transmission technology can coexist in the first terminal device in an FDM manner, for example, the first terminal device can determine the second transmission power, so that data can be transmitted through both the second link and the first link. In the embodiment of the present application, the first terminal device may determine the first transmission power and the second transmission power according to the configured parameter, which is helpful for improving the reasonableness of determining the transmission power on the first link and the second link, so that the first link and the second link coexist in one terminal device more reasonably.

The following describes an apparatus for implementing the above method in the embodiment of the present application with reference to the drawings. Therefore, the above contents can be used in the subsequent embodiments, and the repeated contents are not repeated.

Fig. 8 shows a schematic structural diagram of a communication device 800. The communication device 800 may implement the functionality of the first terminal device referred to above. The communication apparatus 800 may be the first terminal device described above, or may be a chip provided in the first terminal device described above. The communication device 800 may include a processor 801 and a transceiver 802. The processor 801 may be configured to execute the processes S31 and S32 in the embodiment shown in fig. 3, and/or other processes for supporting the techniques described herein, such as all or part of the other processes except the transceiving processes performed by the first terminal device described in the foregoing. The transceiver 802 may be configured to perform S33 in the embodiment shown in fig. 3, and/or other processes for supporting the techniques described herein, such as all or part of the transceiving processes performed by the first terminal device described above.

For example, the processor 801 is configured to obtain a first time domain resource, where the first time domain resource is used to transmit information by using a first sidelink transmission technique;

the processor 801 is further configured to obtain a second time domain resource, where the first time domain resource includes the second time domain resource, and the second time domain resource is configured to transmit information by using a second sidelink transmission technology, where the first sidelink transmission technology and the second sidelink transmission technology are different transmission technologies;

a transceiver 802 configured to transmit or receive first information on the second time domain resource using the second sidelink transmission technique.

The communication device 800 may employ LTE-V2X technology for V2X communication and NR-V2X technology for V2X communication.

All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and are not described herein again.

Fig. 9 shows a schematic structural diagram of a communication device 900. The communication apparatus 900 may implement the functionality of the second terminal device referred to above. The communication apparatus 900 may be the second terminal device described above, or may be a chip provided in the second terminal device described above. The communication device 900 may include a processor 901 and a transceiver 902. Processor 901 may be configured to perform all or some other operations of the second terminal device in the embodiment shown in fig. 3, except for transceiving operations, and/or other processes for supporting the techniques described herein. The transceiver 902 may be configured to perform S33 in the embodiment shown in fig. 3, and to receive the first indication information from the first terminal device, and/or to support other processes of the techniques described herein, such as all or part of the transceiving processes performed by the second terminal device as described above. The communication apparatus 900 may perform V2X communication using LTE-V2X technology, and may perform V2X communication using NR-V2X technology.

For example, the transceiver 902 is configured to receive second indication information from a first terminal device, where the second indication information indicates a second time domain resource, where the second time domain resource belongs to a first time domain resource, the first time domain resource is configured to transmit information by using a first sidelink transmission technology, and the second time domain resource is configured to transmit information by using a second sidelink transmission technology, and the first sidelink transmission technology and the second sidelink transmission technology are different transmission technologies;

a processor 901, configured to determine the second time domain resource according to the second indication information;

the transceiver 902 is further configured to receive or transmit the first information on the second time domain resource using a second sidelink transmission technique.

Fig. 10 shows a schematic structural diagram of a communication apparatus 1000. The communication apparatus 1000 may implement the functions of the first terminal device referred to above. The communication apparatus 1000 may be the first terminal device described above, or may be a chip provided in the first terminal device described above. The communication device 1000 may include a processor 1001 and a transceiver 1002. Among other things, the processor 1001 may be configured to perform S51 and S52 in the embodiment shown in fig. 5, and/or other processes for supporting the techniques described herein, such as all or part of the other processes described above that are performed by the first terminal device except for the transceiving process. Transceiver 1002 may be configured to perform all or a portion of the transceiving processes performed by the first terminal device as described in the embodiments illustrated in fig. 5, and/or other processes to support the techniques described herein.

For example, the processor 1001 is configured to obtain a first transmit power and a maximum transmit power, where the first transmit power is a transmit power used for the first terminal device to transmit data by using a first sidelink transmission technique, and the maximum transmit power is a maximum transmit power of the first terminal device;

the processor 1001 is further configured to determine a second transmit power according to the first transmit power and the maximum transmit power, where the second transmit power is a transmit power used for the first terminal device to transmit data by using a second sidelink transmission technique.

Fig. 11 shows a schematic structural diagram of a communication apparatus 1100. The communication apparatus 1100 may implement the functionality of the first terminal device referred to above. The communication apparatus 1100 may be the first terminal device described above, or may be a chip provided in the first terminal device described above. The communications device 1100 may include a processor 1001 and a transceiver 1102. Among other things, the processor 1101 may be configured to perform S71 and S72 in the embodiment shown in fig. 7, and/or other processes for supporting the techniques described herein, such as all or part of the other processes described above that are performed by the first terminal device except for the transceiving process. The transceiver 1102 may be configured to perform all or a portion of the transceiving processes performed by the first terminal device as described in the embodiments illustrated in fig. 7, and/or other processes to support the techniques described herein.

For example, the processor 1101 is configured to obtain a first ratio and a maximum transmission power, where the first ratio is a ratio between a transmission power for transmitting data through the first link and a transmission power for transmitting data through the second link, or a ratio between a power spectrum density of the transmission power for transmitting data through the first link and a power spectrum density of the transmission power for transmitting data through the second link, or a ratio between a second ratio and a third ratio, the second ratio is a ratio between a power spectrum density of the transmission power for transmitting data through the first link and a subcarrier spacing used for the first link, the third ratio is a ratio between a power spectrum density of the transmission power for transmitting data through the second link and a subcarrier spacing used for the second link, and the maximum transmission power is a maximum transmission power of the first terminal device, the first link is used for transmitting information through a first sidelink transmission technology, and the first link is used for transmitting information through a second sidelink transmission technology;

the processor 1101 is further configured to determine a first transmission power and a second transmission power according to the first ratio and the maximum transmission power, where the first transmission power is a transmission power for transmitting data through the first link, and the second transmission power is a transmission power for transmitting data through the second link.

In a simple embodiment, one skilled in the art may think that the communication apparatus 800, the communication apparatus 900, the communication apparatus 1000 or the communication apparatus 1100 can also be realized by the structure of the communication apparatus 1200 as shown in fig. 12A. The communication apparatus 1200 may implement the functions of the first terminal device or the second terminal device referred to above. The communication device 1200 may include a processor 1201.

When the communication apparatus 1200 is used to implement the functions of the first terminal device mentioned above, the processor 1201 may be configured to execute S31 and S32 in the embodiment shown in fig. 3, and/or other processes for supporting the techniques described herein, for example, all or part of the other processes except the transceiving processes executed by the first terminal device mentioned above may be executed; alternatively, when the communication apparatus 1200 is used to implement the functions of the second terminal device mentioned above, the processor 1201 may be configured to perform all or part of other operations of the second terminal device except for transceiving operations in the embodiment shown in fig. 3, and/or other processes for supporting the technologies described herein; alternatively, when the communication apparatus 1200 is used to implement the functions of the first terminal device mentioned above, the processor 1201 may be configured to execute S51 and S52 in the embodiment shown in fig. 5, and/or other processes for supporting the techniques described herein, for example, all or part of the other processes except the transceiving processes executed by the first terminal device mentioned above may be executed; alternatively, when the communication apparatus 1200 is used to implement the functions of the first terminal device mentioned above, the processor 1201 may be configured to execute S71 and S72 in the embodiment shown in fig. 7, and/or other processes for supporting the techniques described herein, for example, all or part of the other processes except the transceiving processes executed by the first terminal device mentioned above may be executed.

The communication apparatus 1200 may be implemented by a field-programmable gate array (FPGA), an application-specific integrated circuit (ASIC), a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a Micro Controller Unit (MCU), or a programmable controller (PLD) or other integrated chips, and the communication apparatus 1000 may be disposed in the first terminal device or the second terminal device of the embodiment of the present application, so that the first terminal device or the second terminal device implements the method provided by the embodiment of the present application.

In an alternative implementation, the communication apparatus 1200 may include a transceiver component for communicating with other devices. Where the communications apparatus 1200 is used to implement the functionality of the first terminal device or the second terminal device referred to above, the transceiving component may be used to perform S33 in the embodiment shown in fig. 3, and/or other processes for supporting the techniques described herein; alternatively, when the communication apparatus 1200 is used to implement the functions of the first terminal device mentioned above, the transceiving component may be configured to perform all or part of the transceiving process performed by the first terminal device in the embodiment shown in fig. 5, and/or other processes for supporting the techniques described herein; alternatively, when the communication apparatus 1200 is used to implement the functions of the first terminal device mentioned above, the transceiving component may be used to perform all or part of the transceiving process performed by the first terminal device as described in the embodiment shown in fig. 7, and/or other processes for supporting the techniques described herein. For example, one of the transceiver components is a communication interface, and if the communication apparatus 1200 is a first terminal device or a second terminal device, the communication interface may be a transceiver in the first terminal device or the second terminal device, such as the transceiver 802, the transceiver 902, the transceiver 1002, or the transceiver 1102, the transceiver is a radio frequency transceiver component in the first terminal device or the second terminal device, or if the communication apparatus 1200 is a chip disposed in the first terminal device or the second terminal device, the communication interface may be an input/output interface of the chip, such as an input/output pin, and the like.

In an alternative implementation, the communication apparatus 1200 may further include a memory 1202, see fig. 12B, wherein the memory 1202 is used for storing computer programs or instructions, and the processor 1201 is used for decoding and executing the computer programs or instructions. It will be appreciated that these computer programs or instructions may comprise the functional programs of the first terminal device or the second terminal device described above. When the functional program of the first terminal device is decoded and executed by the processor 1201, the first terminal device may be enabled to implement the functions of the first terminal device in the methods provided by the embodiment shown in fig. 3, the embodiment shown in fig. 5, or the embodiment shown in fig. 7 in the embodiments of the present application. When the functional program of the second terminal device is decoded and executed by the processor 1201, the second terminal device can implement the function of the second terminal device in the method provided by the embodiment shown in fig. 3 in this application.

In another alternative implementation, the functional programs of these first terminal device or second terminal device are stored in a memory external to the communication apparatus 1200. When the functional program of the first terminal device is decoded and executed by the processor 1201, part or all of the content of the functional program of the first terminal device is temporarily stored in the memory 1202. When the functional program of the second terminal device is decoded and executed by the processor 1201, part or all of the content of the functional program of the second terminal device is temporarily stored in the memory 1202.

In another alternative implementation, the functional programs of these first terminal device or second terminal device are provided in a memory 1202 stored inside the communication apparatus 1200. When the memory 1002 inside the communication apparatus 1200 stores the function program of the first terminal device, the communication apparatus 1200 may be provided in the first terminal device of the embodiment of the present application. When the memory 1202 inside the communication apparatus 1200 stores the function program of the second terminal device, the communication apparatus 1200 may be provided in the second terminal device of the embodiment of the present application.

In yet another alternative implementation, part of the content of the functional programs of these first terminal devices is stored in a memory external to the communication apparatus 1200, and the other part of the content of the functional programs of these first terminal devices is stored in a memory 1202 internal to the communication apparatus 1200. Alternatively, part of the contents of the function programs of these second terminal devices are stored in a memory external to communication apparatus 1200, and the other part of the contents of the function programs of these second terminal devices are stored in a memory 1202 internal to communication apparatus 1200.

In the embodiment of the present application, the communication apparatus 800, the communication apparatus 900, the communication apparatus 1000, the communication apparatus 1100, and the communication apparatus 1200 may be presented in a form in which each function is divided into respective functional modules, or may be presented in a form in which each functional module is divided into respective functional modules in an integrated manner. As used herein, a "module" may refer to an ASIC, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other components that provide the described functionality.

In addition, the embodiment shown in fig. 8 provides a communication apparatus 800 which can be implemented in other forms. The communication device comprises, for example, a processing module and a transceiver module. For example, the processing module may be implemented by the processor 801 and the transceiver module may be implemented by the transceiver 802. Among other things, the processing module may be configured to perform S31 and S32 in the embodiment shown in fig. 3, and/or other processes for supporting the techniques described herein, such as all or part of the other processes described above that are performed by the first terminal device except for the transceiving process. The transceiving module may be configured to perform S33 in the embodiment shown in fig. 3, and/or other processes for supporting the techniques described herein, such as performing all or part of the transceiving processes performed by the first terminal device as described above.

For example, the processing module is configured to obtain a first time domain resource, where the first time domain resource is used to transmit information by using a first sideline transmission technology;

a processing module, configured to obtain a second time domain resource, where the first time domain resource includes the second time domain resource, and the second time domain resource is configured to transmit information by using a second sidelink transmission technology, where the first sidelink transmission technology and the second sidelink transmission technology are different transmission technologies;

and the transceiver module is configured to transmit or receive the first information on the second time domain resource by using the second sidelink transmission technology.

The embodiment shown in fig. 9 provides a communication apparatus 900 that can be implemented in other forms. The communication device comprises, for example, a processing module and a transceiver module. For example, the processing module may be implemented by the processor 901, and the transceiver module may be implemented by the transceiver 902. Wherein the processing module may be configured to perform all or some of the other operations of the second terminal device in the embodiment shown in fig. 3, except for transceiving operations, and/or other processes for supporting the techniques described herein. The transceiving module may be configured to perform S33 in the embodiment shown in fig. 3, and to receive the first indication information from the first terminal device, and/or to support other processes of the technology described herein, for example, may perform all or part of the transceiving process performed by the second terminal device as described above.

For example, the transceiver module is configured to receive second indication information from a first terminal device, where the second indication information is used to indicate a second time domain resource, where the second time domain resource belongs to a first time domain resource, the first time domain resource is used to transmit information by using a first sidelink transmission technology, the second time domain resource is used to transmit information by using a second sidelink transmission technology, and the first sidelink transmission technology and the second sidelink transmission technology are different transmission technologies;

the processing module is used for determining the second time domain resource according to the second indication information;

and the transceiver module is further configured to receive or send the first information on the second time domain resource by using a second sidelink transmission technology.

The embodiment shown in fig. 10 provides a communication apparatus 1000 that can also be implemented in other forms. The communication device comprises, for example, a processing module and a transceiver module. For example, the processing module may be implemented by the processor 1001 and the transceiver module may be implemented by the transceiver 1002. Among other things, the processing module may be configured to perform S51 and S52 in the embodiment shown in fig. 5, and/or other processes for supporting the techniques described herein, such as all or part of the other processes described above that are performed by the first terminal device except for the transceiving process. The transceiver module may be configured to perform all or part of the transceiving process performed by the first terminal device as described in the embodiment shown in fig. 5, and/or other processes for supporting the techniques described herein.

For example, the processing module is configured to obtain a first transmit power and a maximum transmit power, where the first transmit power is a transmit power used for the first terminal device to transmit data by using a first sidelink transmission technique, and the maximum transmit power is a maximum transmit power of the first terminal device;

the processing module is further configured to determine a second transmit power according to the first transmit power and the maximum transmit power, where the second transmit power is a transmit power used for the first terminal device to transmit data by using a second sidelink transmission technique.

The embodiment shown in fig. 11 provides a communication apparatus 1100 that can also be implemented in other forms. The communication device comprises, for example, a processing module and a transceiver module. For example, the processing module may be implemented by the processor 1101 and the transceiver module may be implemented by the transceiver 1102. Among other things, the processing module may be configured to perform S71 and S72 in the embodiment shown in fig. 7, and/or other processes for supporting the techniques described herein, such as all or part of the other processes described above that are performed by the first terminal device except for the transceiving process. The transceiver module may be configured to perform all or part of the transceiving process performed by the first terminal device as described in the embodiment shown in fig. 7, and/or other processes for supporting the techniques described herein.

For example, the processing module is configured to obtain a first ratio and a maximum transmission power, where the first ratio is a ratio between a transmission power for transmitting data through the first link and a transmission power for transmitting data through the second link, or a ratio between a power spectrum density of the transmission power for transmitting data through the first link and a power spectrum density of the transmission power for transmitting data through the second link, or a ratio between a second ratio and a third ratio, the second ratio is a ratio between a power spectrum density of the transmission power for transmitting data through the first link and a subcarrier spacing used for the first link, the third ratio is a ratio between a power spectrum density of the transmission power for transmitting data through the second link and a subcarrier spacing used for the second link, and the maximum transmission power is the maximum transmission power of the first terminal device, the first link is used for transmitting information through a first sidelink transmission technology, and the first link is used for transmitting information through a second sidelink transmission technology;

the processing module is further configured to determine a first transmit power and a second transmit power according to the first ratio and the maximum transmit power, where the first transmit power is a transmit power used for transmitting data through the first link, and the second transmit power is a transmit power used for transmitting data through the second link.

Since the communication device 800, the communication device 900, the communication device 1000, the communication device 1100 and the communication device 1200 provided in the embodiments of the present application can be used to execute the methods provided in the embodiments shown in fig. 3, fig. 5 or fig. 7, the technical effects obtained by the methods can refer to the above method embodiments and are not described herein again.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

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 Versatile Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the embodiments of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to encompass such modifications and variations.

Claims

1. A method of data transmission, comprising:

a first terminal device acquires a first time domain resource, wherein the first time domain resource is used for transmitting information by adopting a first sideline transmission technology;

the first terminal device obtains a second time domain resource, wherein the first time domain resource comprises the second time domain resource, the second time domain resource is used for transmitting information by adopting a second side-line transmission technology, and the first side-line transmission technology and the second side-line transmission technology are different transmission technologies;

the first terminal equipment transmits or receives first information on the second time domain resource by adopting the second sidelink transmission technology;

the type of the synchronization source of the first link is the same as the type of the synchronization source of the second link, or the first link and the second link have a preset timing offset, the first link is used for transmitting information by using the first sidelink transmission technology, and the second link is used for transmitting information by using the second sidelink transmission technology.

2. The method of claim 1, wherein the first terminal device obtaining the second time domain resource comprises:

the first terminal equipment receives first indication information from network equipment, wherein the first indication information is used for indicating the second time domain resource; or the like, or, alternatively,

and the first terminal equipment determines the second time domain resource according to the first time domain resource.

3. The method according to claim 1 or 2, characterized in that the method further comprises:

and the first terminal equipment sends second indication information, wherein the second indication information is used for indicating the second time domain resource.

4. The method according to claim 3, wherein the second indication information is used to indicate information of a time window in which the second time domain resource is located, or the second indication information is used to indicate a time domain starting position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain ending position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain starting position and a time domain ending position of the second time domain resource.

5. The method according to claim 1 or 2, characterized in that the method further comprises:

when a first condition is met and the first terminal equipment performs receiving detection on the second time domain resource through a first link, stopping performing the receiving detection; and/or the presence of a gas in the gas,

when a first condition is met and first data to be sent through a first link exists on the second time domain resource, the first terminal equipment stops sending the first data on the second time domain resource, or adjusts the sending power of the first data from a first sending power to a second sending power, and sends the first data on the second time domain resource through the second sending power;

wherein the first link is configured to transmit information using the first sidelink transmission technique.

6. The method of claim 5, wherein the first condition comprises at least one of:

the priority of the data transmitted by the first terminal equipment through the second link is higher than that of the data transmitted by the first terminal equipment through the first link, and the second link is used for transmitting information by adopting the second sidelink transmission technology;

the transmission delay of the data transmitted by the first terminal equipment through the second link is less than a predetermined delay, and the priority of the data transmitted by the terminal equipment through the second link is higher than a second predetermined priority;

the transmission distance of the data transmitted by the first terminal equipment through the second link is less than a preset distance, and the priority of the data transmitted by the first terminal equipment through the second link is higher than a second preset priority;

The transmission power of the data transmitted by the first terminal equipment through the second link is less than the preset transmission power, and the priority of the data transmitted by the first terminal equipment through the second link is higher than a second preset priority.

7. The method of claim 1 or 2, wherein the first time domain resource comprises the second time domain resource, comprising:

the second time domain resource belongs to a subframe of the first terminal equipment except for measurement operation on the first link in the first time domain resource; and/or

The second time domain resource belongs to a subframe in the first time domain resource, in which the first link of the first terminal equipment does not transmit data;

8. The method according to claim 1 or 2,

the resource allocated to the first link and the resource allocated to the second link are located on the same carrier or on different carriers, the first link is used for transmitting information by using the first sidelink transmission technology, and the second link is used for transmitting information by using the second sidelink transmission technology.

9. The method according to claim 1 or 2, characterized in that the method further comprises:

and the first terminal equipment determines the sending resource allocated to the first link and/or determines the receiving resource allocated to the first link, the second time domain resource belongs to the sending resource or the receiving resource allocated to the first link, and the first link is used for transmitting information by adopting the first side-line transmission technology.

10. The method of claim 8, further comprising:

the first terminal device determines the transmission resources allocated to the first link and the second link at the same time, and/or determines the reception resources allocated to the first link and the second link at the same time, where the second time domain resource belongs to the transmission resources or the reception resources allocated to the first link and the second link at the same time, and the second link is used for transmitting information by using the second sidelink transmission technology.

11. The method of claim 10, further comprising:

the first terminal device determines transmission resources for the second link allocated only to the first terminal device and/or determines reception resources for the second link allocated only to the first terminal device.

12. The method of claim 11, further comprising:

and the first terminal equipment sends third indication information, wherein the third indication information is used for indicating the sending resource and/or the receiving resource which are included in the first time domain resource and are used for the first link.

13. The method of claim 1,

when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines a candidate synchronization source with a higher priority as the synchronization source of the first link and the second link; or the like, or, alternatively,

when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, the first terminal device determines that the synchronization source of the first link is the synchronization source of the second link; or the like, or, alternatively,

and acquiring the timing of the second link according to the timing of the first link.

14. The method according to claim 1 or 2, wherein the preset timing offset is indicated to the first terminal device by a network device by signaling, or is protocol predefined, or is pre-configured to the first terminal device.

15. The method of claim 14, wherein the predetermined timing offset is an integer multiple of 1 millisecond or an integer multiple of a length of one subframe or one LTE or NR slot.

16. A method of data transmission, comprising:

a second terminal device receives second indication information from a first terminal device, where the second indication information is used to indicate a second time domain resource, where the second time domain resource belongs to a first time domain resource, the first time domain resource is used to transmit information by using a first sidelink transmission technology, the second time domain resource is used to transmit information by using a second sidelink transmission technology, the first sidelink transmission technology and the second sidelink transmission technology are different transmission technologies, where a type of a synchronization source of a first link is the same as a type of a synchronization source of a second link, or the first link and the second link have a preset timing offset, the first link is used to transmit information by using the first sidelink transmission technology, and the second link is used to transmit information by using the second sidelink transmission technology;

and the second terminal equipment receives or sends the first information on the second time domain resource by adopting a second side-line transmission technology.

17. The method according to claim 16, wherein the second indication information is used to indicate information of a time window in which the second time domain resource is located, or the second indication information is used to indicate a time domain starting position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain ending position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain starting position and a time domain ending position of the second time domain resource.

18. The method according to claim 16 or 17, wherein the second time domain resource belongs to the first time domain resource, comprising:

19. The method according to claim 16 or 17, wherein the preset timing offset is indicated to the first terminal device by a network device via signaling, or is protocol predefined, or is pre-configured to the first terminal device.

20. The method of claim 19, wherein the predetermined timing offset is an integer multiple of 1 millisecond or an integer multiple of a length of one subframe or one LTE or NR slot.

21. A terminal device, comprising:

the processor is further configured to obtain a second time domain resource, where the first time domain resource includes the second time domain resource, and the second time domain resource is configured to transmit information by using a second sidelink transmission technology, and the first sidelink transmission technology and the second sidelink transmission technology are different transmission technologies;

a transceiver configured to transmit or receive first information on the second time domain resource using the second sidelink transmission technique;

22. The terminal device of claim 21, wherein the processor is configured to obtain the second time domain resource by:

receiving, by the transceiver, first indication information from a network device, the first indication information indicating the second time domain resource; or the like, or, alternatively,

and determining the second time domain resource according to the first time domain resource.

23. The terminal device according to claim 21 or 22, wherein the transceiver is further configured to:

and sending second indication information, wherein the second indication information is used for indicating the second time domain resource.

24. The terminal device according to claim 23, wherein the second indication information is used to indicate information of a time window in which the second time domain resource is located, or the second indication information is used to indicate a time domain starting position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain ending position and a time duration of the second time domain resource, or the second indication information is used to indicate a time domain starting position and a time domain ending position of the second time domain resource.

25. The terminal device of claim 21 or 22, wherein the processor is further configured to:

when a first condition is met and the terminal equipment performs receiving detection on the second time domain resource through the first link, stopping performing the receiving detection; and/or the presence of a gas in the gas,

when a first condition is met and first data to be sent through a first link exists on the second time domain resource, the terminal equipment stops sending the first data on the second time domain resource through the transceiver, or adjusts the sending power of the first data from a first sending power to a second sending power, and sends the first data on the second time domain resource through the transceiver according to the second sending power;

26. The terminal device of claim 25, wherein the first condition comprises at least one of:

the priority of the data transmitted by the terminal equipment through the second link is higher than that of the data transmitted by the terminal equipment through the first link, and the second link is used for transmitting information by adopting the second sidelink transmission technology;

the priority of the data transmitted by the terminal equipment through the first link is lower than a first preset priority;

the transmission delay of the data transmitted by the terminal equipment through the second link is less than a predetermined delay, and the priority of the data transmitted by the terminal equipment through the second link is higher than a second predetermined priority;

the transmission distance of the data transmitted by the terminal equipment through the second link is smaller than a preset distance, and the priority of the data transmitted by the terminal equipment through the second link is higher than a second preset priority;

the data packet size of the data transmitted by the terminal equipment through the second link is smaller than a preset value, and the priority of the data transmitted by the terminal equipment through the second link is higher than a second preset priority; or

The sending power of the data transmitted by the terminal equipment through the second link is less than the preset sending power, and the priority of the data transmitted by the terminal equipment through the second link is higher than a second preset priority.

27. The terminal device according to claim 21 or 22, wherein the first time domain resource comprises the second time domain resource, comprising:

the second time domain resource belongs to a subframe of the terminal equipment except for measurement operation on a first link in the first time domain resource; and/or

The second time domain resource belongs to a subframe in the first time domain resource, wherein the first link of the terminal equipment does not transmit data;

28. The terminal device according to claim 21 or 22,

29. The terminal device of claim 21 or 22, wherein the processor is further configured to:

and determining a transmission resource allocated to the first link, and/or determining a reception resource allocated to the first link, where the second time domain resource belongs to the transmission resource or the reception resource allocated to the first link, and the first link is configured to transmit information by using the first sidelink transmission technology.

30. The terminal device of claim 28, wherein the processor is further configured to:

determining a transmission resource simultaneously allocated to the first link and the second link, and/or determining a reception resource simultaneously allocated to the first link and the second link, where the second time domain resource belongs to the transmission resource or the reception resource simultaneously allocated to the first link and the second link, and the second link is used for transmitting information by using the second sidelink transmission technology.

31. The terminal device of claim 30, wherein the processor is further configured to:

determining transmission resources for the second link allocated only to the terminal device and/or determining reception resources for the second link allocated only to the terminal device.

32. The terminal device of claim 31, wherein the transceiver is further configured to:

and sending third indication information, where the third indication information is used to indicate a sending resource and/or a receiving resource included in the first time domain resource and used for the first link.

33. The terminal device of claim 21, wherein the processor is further configured to:

determining a candidate synchronization source with a higher priority as the synchronization source of the first link and the second link when the type of the candidate synchronization source of the first link and the type of the candidate synchronization source of the second link are different; or the like, or, alternatively,

when the type of the candidate synchronization source of the first link is different from the type of the candidate synchronization source of the second link, determining that the synchronization source of the first link is the synchronization source of the second link; or the like, or, alternatively,

34. A terminal device according to claim 21 or 22, wherein the preset timing offset is signaled by a network device to the first terminal device, or is protocol predefined, or is preconfigured to the first terminal device.

35. The terminal device of claim 34, wherein the preset timing offset is an integer multiple of 1 millisecond or an integer multiple of a length of one subframe or one LTE or NR slot.

36. A terminal device, comprising:

a transceiver, configured to receive second indication information from a first terminal device, where the second indication information is used to indicate a second time domain resource, where the second time domain resource belongs to a first time domain resource, the first time domain resource is used to transmit information using a first sidelink transmission technology, the second time domain resource is used to transmit information using a second sidelink transmission technology, and the first sidelink transmission technology and the second sidelink transmission technology are different transmission technologies, where a type of a synchronization source of a first link is the same as a type of a synchronization source of a second link, or the first link and the second link have a preset timing offset, the first link is used to transmit information using the first sidelink transmission technology, and the second link is used to transmit information using the second sidelink transmission technology;

the transceiver is further configured to receive or transmit the first information on the second time domain resource by using a second sidelink transmission technique.

37. The terminal device of claim 36, wherein the second indication information is used to indicate information of a time window in which the second time domain resource is located, or the second indication information is used to indicate a time domain starting position and a duration of the second time domain resource, or the second indication information is used to indicate a time domain ending position and a duration of the second time domain resource, or the second indication information is used to indicate a time domain starting position and a time domain ending position of the second time domain resource.

38. The terminal device according to claim 36 or 37, wherein the second time domain resource belongs to the first time domain resource, and comprises:

39. A terminal device according to claim 36 or 37, wherein the preset timing offset is signaled by a network device to the first terminal device, or is protocol predefined, or is preconfigured to the first terminal device.

40. The terminal device of claim 39, wherein the preset timing offset is an integer multiple of 1 millisecond or an integer multiple of a length of one subframe or one LTE or NR slot.

41. A communication device for performing the method of any one of claims 1 to 15 or for performing the method of any one of claims 16 to 20.

42. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program comprising program instructions which, when executed by a computer, cause the computer to perform the method of any of claims 1-15 or to perform the method of any of claims 16-20.