CN112087793A

CN112087793A - Power control method, communication method, device and storage medium

Info

Publication number: CN112087793A
Application number: CN201910509474.1A
Authority: CN
Inventors: 黎超; 冯淑兰; 邓猛; 张兴炜
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-06-13
Filing date: 2019-06-13
Publication date: 2020-12-15
Also published as: WO2020248794A1

Abstract

The application provides a power control method, a communication method, a device and a storage medium, wherein the power control method comprises the following steps: the terminal equipment determines first transmitting power of an NR side link and transmitting power corresponding to each link except the NR side link on a target time domain resource; the terminal equipment determines first actual transmission power of the NR side link on a target time domain resource according to the first transmission power and the transmission power corresponding to each link except the NR side link; the target time domain resource is the time domain resource of the overlapping part occupied by the transmission of the NR side link and the transmission of each link except the NR side link, and the frequency domain resource occupied by the transmission of the NR side link and the transmission of each link except the NR side link are different. The application provides a power distribution method of an NR side link under the condition of parallel transmission of different links.

Description

Power control method, communication method, device and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a power control method, a communication method, an apparatus, and a storage medium.

Background

With the development of communication technology, a cellular network-based car networking technology is proposed in the third generation partnership project (3 GPP). Vehicle networking technology provides vehicle-to-vehicle (V2V), vehicle-to-human (V2P), vehicle-to-infrastructure (V2I), and vehicle-to-network (V2N) interactions. Among them, V2N uses a cellular link (also called uplink and downlink) for communication. V2V, V2P and V2I use sidelink for communication, and sidelink communication is defined based on direct communication between terminal equipment and terminal equipment, and does not require base station forwarding.

In the prior art, parallel uplink transmission of Long Term Evolution (LTE) and New Radio (NR) is supported, and when the LTE and NR perform parallel uplink transmission, uplink transmission power of an LTE link and uplink transmission power of an NR link are controlled according to respective transmission power control methods. The NR-V2X link is introduced in NR, and currently, no adaptive power control mode exists when the NR-V2X link transmits and receives data in parallel with other links.

Disclosure of Invention

The application provides a power control method, a communication method, a device and a storage medium, which are used for providing a power distribution method of an NR side uplink under the condition of parallel transmission of different links.

In a first aspect, the present application provides a power control method, where the method includes that a terminal device determines, on a target time domain resource, a first transmit power of a New Radio (NR) -side downlink and transmit powers corresponding to links other than the NR-side downlink, and determines, according to the first transmit power and the transmit powers corresponding to links other than the NR-side downlink, a first actual transmit power of the NR-side downlink on the target time domain resource. The target time domain resource is the time domain resource of the overlapping part occupied by the transmission of the NR side link and the transmission of each link except the NR side link, and the frequency domain resource occupied by the transmission of the NR side link and the transmission of each link except the NR side link are different.

Based on the scheme, the power distribution method of the NR side link under the condition of parallel transmission of different links is provided.

In one possible implementation, each link other than the NR-side link includes an NR cellular link; or, include NR cellular links and LTE cellular links; or include NR cellular links, LTE cellular links, and LTE sidelink.

For example, when each link other than the NR-side downlink includes an NR cellular link, on the target time domain resource, the transmission of the NR cellular link and the transmission of the NR-side downlink occupy different frequency domain resources, which may specifically be: the transmission of the NR cellular link and the transmission of the NR side uplink occupy different frequency domain resources in the same BWP of the same carrier; or, the transmission of the NR cellular link and the transmission of the NR side uplink occupy different BWPs of the same carrier; or the transmission of the NR cellular link and the transmission of the NR side uplink occupy different carriers of the same frequency band; or, the transmission of the NR cellular link and the transmission of the NR side uplink occupy different carriers of different frequency bands.

The present application exemplarily presents the following three implementations for determining the first actual transmit power.

In the first implementation manner, if the terminal device determines that the sum of the first transmission power and the transmission power corresponding to each link except the NR-side link is greater than the maximum transmission power of the terminal device, the first transmission power is reduced to a first actual transmission power; the first actual transmission power meets the condition that the sum of the first actual transmission power and the transmission power respectively corresponding to each link except the NR side link does not exceed the maximum transmission power; or the sum of the first actual transmission power and the transmission power respectively corresponding to each link except the NR side link does not exceed the maximum transmission power, and the difference between the first actual transmission power and the first transmission power is not more than a preset value. In this way, it is possible to prevent the first transmission power of the NR side downlink from being lowered by too large a magnitude, which may cause the NR side downlink to fail in normal communication.

In the second implementation manner, the terminal device determines the maximum transmission power of the terminal device minus a difference value of second transmission powers respectively corresponding to links other than the NR-side link as the first actual transmission power.

In a third implementation manner, the terminal device determines at least two of a difference value between the maximum transmission power of the terminal device and the transmission power corresponding to each link except the NR-side link, a power determined based on the path loss and the transmission bandwidth on each link except the NR-side link, and a power determined based on the channel quality, and determines a minimum value of the at least two determined items as the first actual transmission power.

In order to facilitate the network device to reasonably schedule each link for information transmission, the terminal device determines the multi-carrier combination mode of the carrier where the supported NR side uplink is located and the carrier where each link except the NR side uplink is located, determines the capability information, wherein the capability information includes at least one of the multi-carrier combination modes, and sends the capability information to the network device or other terminal devices. The terminal device reports the capability information of each link supported by the terminal device to the network device or the opposite terminal device for communication, and the network device or the opposite terminal device for communication can determine whether to activate multi-carrier transmission currently and determine whether to schedule multiple links for parallel data transmission or a transmission mode capable of being performed between two terminal devices for communication according to the capability information of the terminal device. That is, the network device can reasonably schedule each link supported by the terminal device based on the capability information reported by the terminal device.

In one possible implementation, when each link other than the NR-side link includes an NR cellular link, the combination of carriers includes different carriers of the NR-side link and the NR cellular link in the same frequency band; or the NR side downlink and NR cellular links are different carriers in different frequency bands; or the NR side downlink and NR cellular links correspond to the same carrier.

In a second aspect, the present application provides a communication method, where the method includes that a terminal device may determine a target link according to first information to be transmitted on an NR-side uplink and a type of second information to be transmitted on an NR cellular link, or according to the type of second information to be transmitted on the NR cellular link, and the terminal device performs communication through the target link, where the target link is the NR-side uplink or the NR cellular link.

Based on the scheme, the type of the first information and the second information is used for determining the link through which the terminal equipment currently transmits data, so that the complexity of terminal implementation is reduced, and the influence on transmission caused by discarding or suspending part of information is reduced as much as possible.

Determining the NR cellular link as a target link when the type of the second information is any one of aperiodic Sounding Reference Signal (SRS), hybrid automatic repeat request (HARQ) feedback information, Scheduling Request (SR), Reference Signal Receiving Power (RSRP), and beam recovery request message, wherein the HARQ feedback information includes acknowledgement (Ack) response message or non-acknowledgement (NACK) response message.

And when the type of the second information is any one of periodic SRS, semi-continuous SRS, codebook SRS, non-codebook SRS and Channel State Information (CSI), determining the NR side link as a target link.

Further, when the priority of the first information is higher than the first threshold and the type of the second information is any one of periodic SRS, semi-persistent SRS, codebook SRS, non-codebook SRS, and Channel State Information (CSI), the NR-side uplink is determined to be the target link.

In a possible implementation manner, the terminal device determines that the first information is a first data packet, the second information is a second data packet, and the terminal device waits to receive the first data packet and sends the second data packet to the terminal device, or the terminal device sends the first data packet and sends the second data packet to the terminal device; if the NR side link and the NR cellular link are determined to be on the same carrier or different carriers of the same frequency band, the NR cellular link is determined to be the target link. It is also understood that the type of the second information is a packet. When the NR side link and the NR cellular link are both used for transmitting data packets, the data packets on the NR cellular link can be preferentially processed, so that the influence on the cellular link is reduced as much as possible when the implementation cost and complexity of the terminal equipment are reduced, and the occurrence of interference in the terminal equipment can be avoided.

In a possible implementation manner, when the first information is feedback information of a hybrid automatic repeat request HARQ, the target link is determined according to a priority of a data packet corresponding to the feedback information.

The present application exemplarily shows three possible implementations. One is to determine the NR cellular link as a target link when the type of the first information is feedback information of HARQ and the priority of a packet of the feedback information is higher than a second threshold. And the other one is to respectively determine the priority of the data packet corresponding to the feedback information and the priority of the first information, and determine the link corresponding to the link with the higher priority as the target link. Alternatively, when the priority of the first information is higher than a third threshold value, the NR-side link is determined as a target link.

In a third aspect, the present application provides a communication method, which includes a terminal device determining a multi-carrier combination mode of a carrier where a supported sidelink and a cellular link are located, determining capability information, and sending the capability information to a network device or other terminal devices, where the multi-carrier combination mode includes a combination of a carrier where an NR sidelink is located and a carrier where each link other than the NR is located, and the capability information includes at least one of the multi-carrier combination modes.

Based on the scheme, the terminal device reports the capability information of each link supported by the terminal device to the network device, and the network device can determine whether to activate multi-carrier transmission currently and determine whether to schedule a plurality of links for data transmission in parallel according to the capability information of the terminal device. That is, the network device can reasonably schedule each link supported by the terminal device based on the capability information reported by the terminal device.

When the sidelink comprises an NR sidelink and the cellular link comprises an NR cellular link, the multi-carrier combining comprises: the NR side downlink and NR cellular links are different carriers in the same frequency band; alternatively, the NR side downlink and NR cellular links are different carriers in different frequency bands; alternatively, the NR side downlink and NR cellular links correspond to the same carrier.

When the sidelink comprises an LTE sidelink and the cellular link comprises an NR cellular link, the combination of the multiple carriers comprises: the LTE sidelink and the NR cellular link are different carriers in the same frequency band; or, the LTE sidelink and the NR cellular link are different carriers in different frequency bands; alternatively, the LTE sidelink and the NR cellular link are on the same carrier.

When the sidelink comprises an NR sidelink and the cellular link comprises an LTE cellular link and an NR cellular link, the combination of the multiple carriers comprises: the NR side link, the LTE cellular link and the NR cellular link are different carriers in the same frequency band; or different carriers of the NR side downlink, LTE cellular link, NR cellular link in different frequency bands; or any two of the NR side downlink link, the LTE cellular link, and the NR cellular link are on different carriers in the same frequency band, and the other is on a different carrier in a different frequency band; or the NR side link, the LTE cellular link and the NR cellular link are in the same carrier wave in the same frequency band.

When the sidelink comprises an LTE sidelink and the cellular link comprises an LTE cellular link and an NR cellular link, the combination of the multiple carriers comprises: the LTE side link, the LTE cellular link and the NR cellular link are different carriers in the same frequency band; or different carriers of the LTE sidelink, the LTE cellular link, and the NR cellular link in different frequency bands; or any two of the LTE side link, the LTE cellular link and the NR cellular link are different carriers in the same frequency band, and the other one is different carriers in different frequency bands; or the LTE side link, the LTE cellular link and the NR cellular link are on the same carrier wave in the same frequency band.

When the sidelink comprises an LTE sidelink and an NR sidelink, and the cellular link comprises an LTE cellular link and an NR cellular link, the combination mode of the multiple carriers comprises: the LTE side link, the NR side link, the LTE cellular link and the NR cellular link are different carriers in the same frequency band; or different carriers of the LTE side link, the NR side link, the LTE cellular link and the NR cellular link in different frequency bands; or any two of the LTE side uplink link, the NR side uplink link, the LTE cellular link and the NR cellular link are different carriers in the same frequency band, and the other two are different carriers in different frequency bands; or any three of the LTE side link, the NR side link, the LTE cellular link and the NR cellular link are different carriers in the same frequency band, and the other one is different carriers in different frequency bands; or any two of the LTE side uplink, the NR side uplink, the LTE cellular link and the NR cellular link are different carriers in the same frequency band, and different carriers of the other two in different frequency bands are the same carrier in the same frequency band.

In one possible implementation, the capability information further includes at least one of: the maximum transmission rate of the terminal device corresponding to any one of an LTE side uplink, an NR side uplink, an LTE cellular link and an NR cellular link supported by the terminal device; the maximum transmission rate of the terminal device corresponding to any two of an LTE side uplink, an NR side uplink, an LTE cellular link and an NR cellular link supported by the terminal device; the maximum transmission rate of the terminal device corresponding to any three of an LTE side uplink, an NR side uplink, an LTE cellular link and an NR cellular link supported by the terminal device; the terminal equipment supports four maximum transmission rates of the terminal equipment corresponding to an LTE side uplink, an NR side uplink, an LTE cellular link and an NR cellular link respectively; a multiple-input-multiple-output (MIMO) mode supported by at least one of an LTE side link, an NR side link, an LTE cellular link, and the NR cellular link supported by the terminal device. As such, the network device may also determine whether a distribution set is configured on each carrier according to the MIMO mode.

In yet another possible implementation manner, the capability information further includes a total maximum number of transmission channels supported by the terminal device, or a maximum number of carriers of the NR-side downlink and any one of the links except the NR-side downlink; or, the total maximum number of transmission channels on any one link of the NR side link and each link except the NR side link; or, the channel bandwidth on the NR side link and any one of the links except the NR side link; or, the NR side downlink and any one of the links except the NR side downlink are separated by a subcarrier, where the NR side downlink and any one of the links except the NR side downlink operate on the same carrier or different carriers in the same bandwidth; wherein each link outside the NR-side link includes at least one of: an LTE sidelink, an LTE cellular link, and an NR cellular link.

In a fourth aspect, embodiments of the present application provide a communication apparatus having a function of implementing the communication apparatus in the above embodiments. The function can be realized by hardware, and can also be realized by executing corresponding software by hardware. The hardware or software includes one or more units or modules corresponding to the above functions.

In one possible implementation, the communication device includes: a processor configured to support the communication apparatus to perform respective functions of the communication apparatus in the above-indicated communication method. The communication device may also include a memory, which may be coupled to the processor, that stores program instructions and data packets necessary for the communication device. Optionally, the communication apparatus further comprises a transceiver for supporting communication between the communication apparatus and a network device or the like. The transceiver may be a separate receiver, a separate transmitter, a transceiver with integrated transceiving function, or an interface circuit.

In one possible implementation, the communication device may be a communication device or may be a component of a communication device, such as a chip or a system of chips or a circuit.

In a fifth aspect, an embodiment of the present application provides a communication apparatus, configured to implement any one of the above first aspect or the first aspect, or to implement any one of the above second aspect or the second aspect, or to implement any one of the above third aspect or the third aspect, where the communication apparatus includes corresponding functional modules, and the corresponding functional modules are respectively configured to implement the steps in the above methods. The functions may be implemented by hardware, or by hardware executing corresponding software. The hardware or software includes one or more modules corresponding to the above-described functions.

In a possible implementation manner, the structure of the communication device includes a processing unit and a transceiver unit, and these units may perform corresponding functions in the foregoing method example, which is specifically referred to the detailed description in the method example, and are not described herein again.

In a sixth aspect, the present application provides a chip system comprising a processor. Optionally, a memory may be further included, the memory being configured to store a computer program, and the processor being configured to call up and run the computer program from the memory, so that the apparatus with the system-on-chip installed performs any one of the methods of the first aspect to the second aspect and possible embodiments thereof.

In a seventh aspect, an embodiment of the present application provides a computer storage medium, where instructions are stored, and when the instructions are executed on a computer, the instructions cause the computer to execute the method in the first aspect or any possible implementation manner of the first aspect, or cause the computer to execute the method in the second aspect or any possible implementation manner of the second aspect, or cause the computer to execute the method in any possible implementation manner of the third aspect or any possible implementation manner of the third aspect.

In an eighth aspect, embodiments of the present application provide a computer program product containing instructions, which when run on a computer, causes the computer to perform the method of the first aspect or any possible implementation manner of the first aspect, or causes the computer to perform the method of the second aspect or any possible implementation manner of the second aspect, or causes the computer to perform the method of the third aspect or any possible implementation manner of the third aspect.

Drawings

Fig. 1 is a schematic diagram of a communication system architecture provided in the present application;

fig. 2 is a schematic flow chart of a power control method provided in the present application;

fig. 3 is a flowchart illustrating a method for determining a first actual transmit power of an NR-side downlink according to the present disclosure;

fig. 4a is a schematic diagram of carrier aggregation provided herein;

fig. 4b is a schematic diagram of another carrier aggregation provided herein;

fig. 4c is a schematic diagram of another carrier aggregation provided herein;

fig. 5 is a schematic flow chart of a communication method provided in the present application;

fig. 6 is a schematic flow chart of another communication method provided in the present application;

fig. 7 is a schematic flow chart of another communication method provided in the present application;

fig. 8 is a schematic structural diagram of a terminal device provided in the present application;

fig. 9 is a schematic structural diagram of a terminal device provided in the present application.

Detailed Description

It is to be understood that the terms "first," "second," and the like in the embodiments of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. "and/or" for describing an association relationship of associated objects, indicating that there may be three relationships, e.g., "a and/or B" may indicate: only A, only B and both A and B are present, wherein A and B may be singular or plural.

Fig. 1 illustrates a communication system architecture diagram to which the present application is applicable. The communication system includes a network device and a terminal device. Optionally, a Global Navigation Satellite System (GNSS), also referred to as a global navigation satellite system, may also be included. Fig. 1 illustrates an example in which a communication system includes one network device and two terminal devices. As shown in fig. 1, the communication system includes a network device 100, a terminal device 101, a terminal device 102, and a GNSS103, where the terminal device is an example of a vehicle-mounted terminal. Network device 100 may communicate with terminal device 101 and terminal device 102 wirelessly, for example, over an air interface Uu of a cellular communication interface, including but not limited to, over an NR cellular link (also referred to as an NR-Uu link) and an LTE cellular link (also referred to as an LTE-Uu link). The NR cellular link and the LTE cellular link each include a downlink and/or an uplink. The terminal device 101 and the terminal device 102 may communicate wirelessly, for example, via a Sidelink (SL) air interface (also referred to as a Sidelink air interface or a direct communication interface), including but not limited to via an NR Sidelink (NR-V2X link) and an LTE Sidelink (LTE-V2X link). The sidelink is defined for direct communication between the terminal device 101 and the terminal device 102, i.e. the communication between the terminal device 101 and the terminal device 102 does not require forwarding through the base station.

Wherein, V2X may specifically include: vehicle to vehicle (V2V), vehicle to human (V2P), vehicle to roadside unit (V2R), vehicle to infrastructure (V2I), and vehicle to network (V2N). Among them, V2N uses a cellular link (also called uplink and downlink) for communication. V2V, V2P, and V2I use sidelink for communications.

Among other things, 1) terminal devices, including devices that provide voice and/or data connectivity to a user, may include, for example, handheld devices with wireless connection capabilities 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 device-to-device communication (D2D) terminal device, a vehicle-to-all (V2X) terminal device, a machine-to-machine-type communication (M2M/MTC) terminal device, an internet of things (IoT) terminal device, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a Mobile Station (MS), a remote station (remote station), an access point (access point, AP), a remote terminal (remote), an access terminal (access terminal), a user terminal (user terminal), a Mobile Terminal (MT), a mobile terminal (mobile terminal), a Virtual Reality (VR), an augmented reality (virtual reality), AR) terminal, wireless terminal in industrial control (industrial control), wireless terminal in self driving (self driving), wireless terminal in remote medical (remote medical), wireless terminal in smart grid (smart grid), wireless terminal in transportation security (transportation safety), wireless terminal in smart city (smart city), wireless terminal in smart home (smart home), user agent (user agent), user equipment (user device), or the like. For example, mobile telephones (or so-called "cellular" telephones), computers with mobile terminal equipment, portable, pocket, hand-held, computer-included mobile devices, and the like may be included. Examples of such devices include 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 present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable smart device or intelligent wearable equipment etc. is the general term of using 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.

2) Network devices, including, for example, Access Network (AN) devices, also referred to as radio access network devices, are devices for accessing terminal devices into a wireless network. Such as a base station (e.g., an access point), may refer to a device in an access network that communicates with wireless terminal devices over one or more cells over an air interface, and, for example, an access network device in vehicle-to-all (V2X) technology may be a Road Side Unit (RSU). 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 access network device may also coordinate attribute management for the air interface. Illustratively, the access network device may include an evolved Node B (NodeB) or eNB or e-NodeB in an LTE system or an LTE-a (long term evolution-advanced), or may also include a next generation Node B (gNB), a transmission reception Node (TRP) (also referred to as a transceiver Node), a baseband processing Unit (BBU) and a Radio frequency Unit (RRU), a BBU and an Active Antenna Unit (AAU) in a 5th generation NR system, or may also include a centralized Radio Unit (central, and distributed Radio Unit (CU) in a Cloud RAN system, or may also include a distributed Radio network Unit (CU), Wi-Fi) system, or may further include a Radio Network Controller (RNC), a network equipment controller (BSC), a network equipment transceiver station (BTS), a Home network equipment (e.g., Home evolved NodeB, or Home Node B, HNB), or may also include a base station, a small station, a micro station, etc., in a future communication network. The embodiments of the present application are not limited.

It should be noted that the RSU may be a function of a vehicle-mounted device or a function of a network device in terms of functions. The above description takes the RSU as an access network device as an example.

3) GNSS, a space-based radio navigation positioning system that can provide full 3-dimensional coordinates and velocity and time information for terminal devices at any location on the earth's surface or near-earth space.

The various terminal devices and network devices described above may be deployed on land, including indoors or outdoors, hand-held or vehicle-mounted. If located on a vehicle (e.g. placed in or mounted in a vehicle), may be considered to be a vehicle terminal device, also referred to as an on-board unit (OBU), for example. The system can also be deployed on the water surface, or can also be deployed on airplanes, balloons and satellites in the air, which is not limited in the application.

In this application, the communication system may be a Long Term Evolution (LTE) system, a 5G communication system (e.g., a New Radio (NR) system, a communication system with multiple converged communication technologies (e.g., a communication system with a converged LTE technology and a converged NR technology), another communication system, or another communication system that may appear in the future, and the like, and the application is not limited thereto.

It should be noted that the working scenarios supportable by the sidelink include both scenarios with cellular network coverage and scenarios without cellular network deployment. When the terminal equipment supporting the sidelink is in the coverage of the cellular network, the Uu air interface can be used for communication under the control of the cellular network, and the frequency spectrum of the cellular link can be used; and no matter whether network coverage exists or not, the side link communication can be carried out by adopting an SL air interface, and an intelligent traffic frequency spectrum near 5.9GHz can be used. That is, V2X may combine the Uu interface and the SL air interface to be commonly used for the sidelink traffic.

The form and number of the network devices and the terminal devices shown in fig. 1 are only for example and do not constitute a limitation to the present application. The terminal device UE101, the terminal device 102, and the GNSS103 may only have a unidirectional link from the GNSS to the terminal device, or may have a reverse link as shown in fig. 1, which is not limited in this embodiment of the present application.

For the terminal device, the terminal device may support time division multiplexing or frequency division multiplexing of the NR link and the LTE link according to the terminal device capability. For time division multiplexing, only one of the two carriers can be selected for transmission at one time point, and for frequency division multiplexing, simultaneous transmission of the two links can be supported at one time point. For the time division multiplexing mode, the transmission power on each link only needs to be maintained on different links according to the power control mechanism on each link at one time point. For a terminal device supporting simultaneous transmission of the NR link and the LTE link, parallel transmission power control needs to be considered. The use of parallel transmit power control first requires solving the transmit power allocation problem for the terminal device. The maximum total transmission power limit of a terminal device is still observed even if two carriers adopt independent radio frequency transmission devices, and the constraint brought by the maximum total transmission power limit is that a mechanism for allocating transmission power needs to be considered at any time.

Based on the application scenario shown in fig. 1, as shown in fig. 2, a power control method provided by the present application includes the following steps:

step 201, the terminal device determines, on a target time domain resource, a first transmit power of an NR-side downlink and transmit powers corresponding to links other than the NR-side downlink.

The target time domain resource is the time domain resource of the overlapping part occupied by the transmission of the NR side link and the transmission of each link except the NR side link, and the frequency domain resource occupied by the transmission of the NR side link and the transmission of each link except the NR side link are different. When time domain resources occupied by the transmission of the NR side link and the transmission of each link other than the NR side link are completely or partially overlapped, it can also be understood that the transmission of the NR side link and the transmission of each link other than the NR side link are frequency-division multiplexing (FDM), also called frequency-division multiplexing, where FDM is a multiplexing technique that modulates multiple baseband signals onto different frequency carriers and superposes them to form one composite signal. Alternatively, the partial overlap may occur when the transmission of the NR-side row link is not fully aligned with the timing of each link other than the NR-side row link, and/or when the transmission of the NR-side row link is different from the subcarrier spacing used by each link other than the NR-side row link.

Step 202, the terminal device determines a first actual transmit power of the NR-side uplink on the target time domain resource according to the first transmit power and transmit powers corresponding to links except the NR-side uplink.

The present application illustratively provides three implementations of determining the first actual transmit power as follows.

As can be seen from the above steps 201 to 202, the present application provides a power allocation method for the NR side downlink under parallel transmission of different links.

It should be noted that, the maximum transmission power of the terminal device may specifically refer to: the maximum transmission power of the terminal device on one carrier, or the maximum transmission power of the terminal device on a plurality of carriers, or the total transmission power of the terminal device on a plurality of carrier groups, or the maximum transmission power of the terminal device on a specific channel.

In one possible implementation, the maximum transmit power of the terminal device may be configured for signaling, may be predefined, or may be preconfigured. The maximum transmission power value of the terminal device may be a linear value or a logarithmic value, which is not limited in this application.

In the present application, the power control method shown in fig. 2 is described in detail in the following three scenarios. Under the following three scenarios, the terminal device transmits in parallel on the target time domain resource.

Scenario one, NR side link and NR cellular link. That is, each link other than the NR-side row link includes an NR cellular link.

First transmit power available for NR-side downlink for scenario one

Indicating that the second transmit power of the NR cellular link is available

Maximum transmit power availability for terminal equipment

And (4) showing.

Indicating that the NR side link is in time slot i₂The linear value of the transmit power of (c),

indicating that the NR cellular link is in time slot i₁Linear value of the transmitted power of₁Indicated time slot sum i on NR cellular link₂The time slots on the NR-side downlink are shown to be all or partially overlapping, i₁And i₂May be the same or different.

In this scenario, the present application illustratively provides three ways of determining the first actual transmit power of the NR-side downlink as follows.

Mode 1, the first transmit power is reduced.

Fig. 3 is a schematic flow chart of a method for determining a first actual transmit power of an NR-side downlink according to the present invention. The method comprises the following steps:

step 31, a first transmit power of the NR side downlink and a second transmit power of the NR cellular link are determined.

Step 32, determining the sum of the first transmit power and the second transmit power.

Step 33, judging whether the sum of the first transmitting power and the second transmitting power is greater than the maximum transmitting power of the terminal equipment, if so, executing step 34; if not, the NR side uplink link and the NR cellular link may perform power control according to the existing mechanism, which is not described in detail herein.

That is, if

Step 34 is executed; if it is

The NR side link and NR cellular link may be dividedThe power control is performed according to the existing mechanism.

The first transmit power of the NR-side downlink is reduced to a first actual transmit power, step 34.

Here, the first actual transmit power needs to satisfy: the sum of the first actual transmission power and the second transmission power does not exceed the maximum transmission power of the terminal device.

Further, in order to prevent the first transmission power of the NR-side downlink from being reduced by too large an amount, which may cause the NR-side downlink to fail to perform normal communication, it is to be ensured that the sum of the first actual transmission power and the second transmission power does not exceed the maximum transmission power of the terminal device, and the difference between the first actual transmission power and the first transmission power is not greater than the first preset value. If the difference between the first actual transmission power and the first transmission power is greater than the first preset value, the data transmitted on the NR side link can be directly discarded or suspended.

Mode 2, the difference value obtained by subtracting the second transmission power from the maximum transmission power of the terminal device is determined as the first actual transmission power. Specifically, the terminal device determines a first transmission power of an NR side uplink and a second transmission power of an NR cellular link; and determining the difference value of the maximum transmission power of the terminal equipment minus the second transmission power as the first actual transmission power.

Namely, it is

Mode 3, the minimum value of the plurality of terms is determined as the first actual transmission power.

In this implementation manner 3, the following process may be specifically included:

1) a first transmit power of the NR side downlink and a second transmit power of the NR cellular link are determined.

2) Determining any at least two of: a difference of the maximum transmit power of the terminal device minus the second transmit power, a power determined based on a path loss and a transmission bandwidth on the NR-side downlink, a power determined based on a path loss and a transmission bandwidth on the NR cellular link of the terminal device and the network device, and a power determined based on a channel quality.

Wherein a power determined based on a path loss and a transmission bandwidth on an NR-side link can be used at 10log₁₀(aM_PSSCH+bM_PSCCH) Indicating, power available {10log determined based on path loss and transmission bandwidth of terminal device and network device on NR cellular link₁₀(M_PSSCH)+P_{O_PSSCH}+α_PSSCHPL } representation; power available P determined based on channel quality_{MAX_CBR}And (4) showing.

3) And determining the minimum value of the determined at least two terms as the first actual transmission power.

For example, if the determined at least two terms include the difference between the maximum transmission power of the terminal device minus the second transmission power and the power determined based on the path loss and the transmission bandwidth on the NR-side downlink, the minimum of the two terms is used to determine the first actual transmission power. The method specifically comprises the following steps: min { the difference between the maximum transmit power of the terminal device minus the second transmit power, the power determined based on the path loss and transmission bandwidth on the NR side link }.

For another example, if the determined at least two terms include a difference value of the maximum transmission power of the terminal device minus the second transmission power and a power determined based on the path loss and the transmission bandwidth on the NR cellular link, the minimum value of the two terms is used to determine the first actual transmission power. The method specifically comprises the following steps: min { the difference between the maximum transmit power of the terminal device minus the second transmit power, the power determined based on the path loss and transmission bandwidth on the NR cellular link }.

For another example, if the determined at least two terms are a difference value including a maximum transmission power of the terminal device minus a second transmission power, a power determined based on a path loss and a transmission bandwidth on the NR-side downlink, a power determined based on a path loss and a transmission bandwidth on the NR-cellular link, and a power determined based on a channel quality, any of the following may be performed:

first, the minimum value of any two of the difference between the maximum transmission power of the terminal device and the second transmission power, the power determined based on the path loss and the transmission bandwidth on the NR-side downlink, the power determined based on the path loss and the transmission bandwidth on the NR-cellular link between the terminal device and the network device, and the power determined based on the channel quality is determined as the first actual transmission power.

The method specifically comprises the following steps: min { the difference between the maximum transmit power of the terminal device minus the second transmit power, the power determined based on the path loss and transmission bandwidth on the NR cellular link }; or min { the difference between the maximum transmission power of the terminal device and the second transmission power, the power determined based on the channel quality }; or, min { power determined based on the path loss and transmission bandwidth on the NR-side downlink, power determined based on the path loss and transmission bandwidth on the NR-cellular link }; or, min { power determined based on the path loss and transmission bandwidth on the NR-side downlink, power determined based on the channel quality }; or min { power determined based on path loss and transmission bandwidth on NR cellular link, power determined based on channel quality }.

Second, the minimum value of any three of the difference between the maximum transmission power of the terminal device and the second transmission power, the power determined based on the path loss and the transmission bandwidth on the NR-side downlink, the power determined based on the path loss and the transmission bandwidth on the NR cellular link between the terminal device and the network device, and the power determined based on the channel quality is determined as the first actual transmission power.

The method specifically comprises the following steps: min { difference between the maximum transmit power of the terminal device and the second transmit power, power determined based on the path loss and transmission bandwidth on the NR-side downlink, power determined based on the path loss and transmission bandwidth on the NR-cellular link between the terminal device and the network device }; or min { power determined based on path loss and transmission bandwidth on the NR-side downlink, power determined based on path loss and transmission bandwidth on the NR cellular link between the terminal device and the network device, and power determined based on channel quality }; or min { difference between the maximum transmit power of the terminal device and the second transmit power, power determined based on the path loss and transmission bandwidth of the terminal device and the network device on the NR cellular link, and power determined based on channel quality }; or min { difference between the maximum transmit power of the terminal device and the second transmit power, power determined based on the path loss and transmission bandwidth on the NR-side downlink, power determined based on the path loss and transmission bandwidth on the NR cellular link between the terminal device and the network device }.

And thirdly, determining the minimum value of the difference value between the maximum transmission power of the terminal device and the second transmission power, the power determined based on the path loss and the transmission bandwidth of the NR side uplink, the power determined based on the path loss and the transmission bandwidth of the terminal device and the network device on the NR cellular link, and the power determined based on the channel quality as the first actual transmission power.

The method specifically comprises the following steps: min { difference between maximum transmit power of the terminal device and the second transmit power, power determined based on path loss and transmission bandwidth on the NR-side downlink, power determined based on path loss and transmission bandwidth on the NR cellular link between the terminal device and the network device, and power determined based on channel quality }.

In this scenario, the transmission of the NR cellular link occupies a different frequency domain resource than the transmission of the NR side downlink link specifically includes any of the following scenarios.

Case one, the transmission of the NR cellular link occupies the same bandwidth part (BWP) of the same carrier as the transmission of the NR side uplink.

In case two, the transmission of the NR cellular link and the transmission of the NR side row link occupy different BWPs of the same carrier.

In case three, the transmission of the NR cellular link and the transmission of the NR side uplink occupy different carriers of the same frequency band.

In case four, the transmission of the NR cellular link and the transmission of the NR side uplink occupy different carriers of different frequency bands.

In the present application, one carrier may be divided into a plurality of BWPs. For a terminal device, usually only one or a limited number of BWPs can be operated at the same time. Simultaneous activation of multiple BWPs requires that the radio frequency unit and the baseband unit of the UE have the capability to transmit and receive for multiple BWPs in parallel, i.e. parallel multiple BWPs have additional requirements on power consumption, cost and processing capability of the terminal device.

Scenario two, NR side uplink, NR cellular link, and LTE cellular link. That is, the respective links other than the NR-side row link include an NR cellular link and an LTE cellular link.

First transmit power available for scenario two, NR side downlink

Indicating that the second transmit power of the NR cellular link is available

Third transmit power available for LTE cellular link

Indicating maximum transmission power of terminal equipment

And (4) showing.

indicating that the NR cellular link is in time slot i₁The linear value of the transmit power of (c),

indicating LTE cellular link at i₃Linear value of the transmission power of i₁Time slot, i, on the indicated NR cellular link₂Time slot on the NR side downlink represented, and i₃The time slots on the represented LTE cellular links are all overlapping or partially overlapping i₁、i₂And i₃May be the same or different.

It should be noted that the NR cellular link and the LTE cellular link are on different carriers, and the NR cellular link and the NR sidelink may be on the same carrier or on different carriers.

It should be further noted that the carrier where the link is located refers to a carrier used in link transmission, or refers to a carrier where a transmission resource is located in link transmission. For example, the carrier on which the NR cellular link is located refers to a carrier used when the NR cellular link is transmitted, or refers to a carrier on which transmission resources are located when the NR cellular link is transmitted. For another example, the carrier on which the NR side uplink is located refers to a carrier used in NR side uplink transmission, or refers to a carrier on which transmission resources are located in NR side uplink transmission. For another example, the carrier where the LTE cellular link is located refers to a carrier used in LTE cellular link transmission, or refers to a carrier where transmission resources are located in LTE cellular link transmission. For another example, the carrier where the LTE uplink is located refers to a carrier used in LTE uplink transmission, or refers to a carrier where transmission resources are located in LTE uplink transmission.

In this scenario two, the present application illustratively provides the following three ways of determining the first actual transmit power of the NR-side downlink.

Mode a, the first transmit power is reduced.

In the method a, the following process may be specifically included:

1) a first transmit power of the NR-side downlink, a second transmit power of the NR cellular link, and a third transmit power of the LTE cellular link are determined.

2) And determining the sum of the first transmission power, the second transmission power and the third transmission power.

3) Judging whether the sum of the first transmitting power, the second transmitting power and the third transmitting power is greater than the maximum transmitting power of the terminal equipment; if yes, go to step 64; if not, the NR side uplink link, the NR cellular link, and the LTE cellular link may perform power control according to the existing mechanisms, which is not described in detail herein.

4) The first transmission power of the NR-side downlink is reduced to a first actual transmission power.

Here, the first actual transmission power satisfies: the sum of the first actual transmission power, the second transmission power and the third transmission power does not exceed the maximum transmission power of the terminal device.

Further, in order to prevent the first transmission power of the NR-side downlink from being reduced by too large an extent to cause the NR-side downlink to fail to perform normal communication, it is to be ensured that the sum of the first actual transmission power and the second transmission power and the third transmission power does not exceed the maximum transmission power of the terminal device, and the difference between the first actual transmission power and the first transmission power is not greater than the first preset value. If the difference between the first actual transmission power and the first transmission power is greater than the first preset value, the data transmitted on the NR side link can be directly discarded or suspended.

And B, determining the difference value of subtracting the second transmission power from the maximum transmission power of the terminal equipment and subtracting the third transmission power as the first actual transmission power.

In implementation B, the terminal device may specifically determine a first transmission power of the NR side uplink, a second transmission power of the NR cellular link, and a third transmission power of the LTE cellular link. And the terminal equipment subtracts the second transmitting power from the maximum transmitting power of the terminal equipment, subtracts the third transmitting power from the maximum transmitting power of the terminal equipment, and subtracts the third transmitting power from the maximum transmitting power of the LTE cellular link to determine the first actual transmitting power.

Here, the number of the first and second electrodes,

mode C, the minimum value of the plurality of terms is determined as the first actual transmit power.

In the implementation manner C, the following process may be specifically included:

2) Determining any at least two of: a difference of the maximum transmit power of the terminal device minus the second transmit power minus the third transmit power, a power determined based on a path loss and a transmission bandwidth on the NR-side downlink, a power determined based on a path loss and a transmission bandwidth on the NR cellular link between the terminal device and the network device, a power determined based on a path loss and a transmission bandwidth on the LTE cellular link, and a power determined based on a channel quality.

Illustratively, the determined at least two terms comprise a difference value of the maximum transmission power of the terminal device minus the second transmission power minus the third transmission power, and a power determined based on the path loss and the transmission bandwidth on the LTE cellular link, and then the minimum value of the two terms is used to determine the first actual transmission power. The method specifically comprises the following steps: min { difference of maximum transmitting power of terminal equipment minus second transmitting power minus third transmitting power, based on path loss on LTE cellular link and power determined by transmission bandwidth }.

For another example, the at least two determined terms include: a difference of the maximum transmission power of the terminal device minus the second transmission power minus the third transmission power, a power determined based on the path loss and the transmission bandwidth on the NR-side downlink, a power determined based on the path loss and the transmission bandwidth on the NR cellular link between the terminal device and the network device, a power determined based on the path loss and the transmission bandwidth on the LTE cellular link, and a power determined based on the channel quality, any of the following manners may be performed:

first, the minimum value of any two of the difference between the maximum transmission power of the terminal device and the second transmission power, and the difference between the maximum transmission power of the terminal device and the third transmission power, the power determined based on the path loss and the transmission bandwidth on the NR-side cellular link between the terminal device and the network device, the power determined based on the path loss and the transmission bandwidth on the LTE cellular link, and the power determined based on the channel quality is determined as the first actual transmission power.

And secondly, determining the minimum value of any three items of the difference value of the maximum transmission power of the terminal device minus the second transmission power minus the third transmission power, the power determined based on the path loss and the transmission bandwidth on the NR side link, the power determined based on the path loss and the transmission bandwidth on the NR cellular link between the terminal device and the network device, the power determined based on the path loss and the transmission bandwidth on the LTE cellular link, and the power determined based on the channel quality as the first actual transmission power.

And thirdly, determining the minimum value of the maximum transmitting power of the terminal device minus the second transmitting power minus the third transmitting power, the power determined based on the path loss and the transmission bandwidth on the NR side link, the power determined based on the path loss and the transmission bandwidth on the NR cellular link between the terminal device and the network device, the power determined based on the path loss and the transmission bandwidth on the LTE cellular link, and the power determined based on the channel quality as the first actual transmitting power.

In this scenario two, the frequency domain resources occupied by the transmission of the NR cellular link, the transmission of the NR side downlink, and the LTE cellular link are different, specifically including any of the following cases.

Case one, the NR side downlink, LTE cellular link, NR cellular link are on different carriers in the same frequency band.

Case two, NR side downlink, LTE cellular link, NR cellular link are different carriers in different frequency bands.

Case three, any two of the NR side downlink, LTE cellular, NR cellular links are on different carriers in the same frequency band, and the other is on a different carrier in a different frequency band.

And in case four, the NR side link, the LTE cellular link and the NR cellular link are on the same carrier wave in the same frequency band.

Scenario three, NR sidelink, NR cellular link, LTE cellular link, and LTE sidelink. That is, the respective links other than the NR-side link include an NR cellular link, an LTE cellular link, and an LTE side link.

First transmit power available for scenario three, NR side downlink

Indicating that the second transmit power of the NR cellular link is available

Third transmit power available for LTE cellular link

Means that the fourth transmit power of the LTE sidelink is available

Indicating maximum transmission power of terminal equipment

And (4) showing.

indicating LTE cellular link at i₃Is measured in the same manner as the linear value of the transmit power,

indicating LTE sidelink at i₄Linear value of the transmission power of i₁Time slot, i, on the indicated NR cellular link₂Time slot on the NR side downlink represented, and i₃Time slots on the represented LTE cellular link, and i₄The time slots on the represented LTE side uplink are all overlapped or partially overlapped, i₁、i₂、i₃And i₄May be the same or different.

It should be noted that the NR cellular link and the LTE cellular link are on different carriers, the NR cellular link and the NR sidelink may be on the same carrier, or may be on different carriers, and the NR sidelink and the LTE sidelink are on different carriers.

In this scenario three, the present application illustratively provides the following six ways of determining the first actual transmit power of the NR-side downlink.

Mode a, the first transmit power is reduced.

In the method a, the following process may be specifically included:

1) a first transmit power of the NR side downlink, a second transmit power of the NR cellular link, and a third transmit power of the LTE cellular link, and a fourth transmit power of the LTE side downlink are determined.

2) And determining the sum of the first transmission power, the second transmission power, the third transmission power and the fourth transmission power.

3) Judging whether the sum of the first transmitting power, the second transmitting power, the third transmitting power and the fourth transmitting power is greater than the maximum transmitting power of the terminal equipment or not; if yes, go to step 94; if not, the NR side uplink link, the NR cellular link, the LTE cellular link, and the LTE side uplink link may perform power control according to the existing mechanism, which is not described in detail herein.

Here, the first actual transmission power satisfies: the sum of the first actual transmission power and the second transmission power, the third transmission power and the fourth transmission power does not exceed the maximum transmission power of the terminal equipment.

Further, in order to prevent the first transmission power of the NR-side downlink from being reduced by too large an amount, which may cause the NR-side downlink to fail to perform normal communication, it is to be ensured that the sum of the first actual transmission power and the second transmission power, and the sum of the third transmission power and the fourth transmission power does not exceed the maximum transmission power of the terminal device, and the difference between the first actual transmission power and the first transmission power is not greater than a first preset value. If the difference between the first actual transmission power and the first transmission power is greater than the first preset value, the data transmitted on the NR side link can be directly discarded or suspended.

In the mode b, the difference value obtained by subtracting the second transmission power from the maximum transmission power of the terminal device, subtracting the third transmission power from the maximum transmission power of the terminal device, and subtracting the fourth transmission power from the maximum transmission power of the terminal device is determined as the first actual transmission power.

In the implementation manner b, the following processes may be specifically included:

1) a first transmit power of the NR side downlink, a second transmit power of the NR cellular link, a third transmit power of the LTE cellular link, and a fourth transmit power of the LTE side downlink are determined.

2) And determining the difference of subtracting the second transmission power from the maximum transmission power of the terminal equipment, subtracting the third transmission power from the maximum transmission power of the terminal equipment and subtracting the fourth transmission power from the maximum transmission power of the terminal equipment as the first actual transmission power.

Here, the number of the first and second electrodes,

mode c, determining the minimum value of the plurality of terms as the first actual transmission power.

In this implementation 3, the following process may be specifically included:

2) Determining any at least two of: a difference of the maximum transmit power of the terminal device minus the second transmit power minus the third transmit power minus the fourth transmit power, a power determined based on a path loss and a transmission bandwidth on the NR side cellular link, a power determined based on a path loss and a transmission bandwidth on the NR cellular link of the terminal device and the network device, a power determined based on a path loss and a transmission bandwidth on the LTE cellular link, a power determined based on a path loss and a transmission bandwidth on the LTE side cellular link, and a power determined based on a channel quality.

Illustratively, the determined at least two terms are a difference value comprising a maximum transmit power of the terminal device minus a second transmit power minus a third transmit power minus a fourth transmit power, a power determined based on a path loss and a transmission bandwidth on the NR side link, a power determined based on a path loss and a transmission bandwidth on the NR cellular link between the terminal device and the network device, a power determined based on a path loss and a transmission bandwidth on the LTE cellular link, a power determined based on a path loss and a transmission bandwidth on the LTE side link, and a power determined based on a channel quality, any of the following manners may be performed:

first, the minimum value of any two of the difference value obtained by subtracting the second transmission power from the maximum transmission power of the terminal device and subtracting the third transmission power from the fourth transmission power, the power determined based on the path loss and the transmission bandwidth on the NR side downlink, the power determined based on the path loss and the transmission bandwidth on the NR cellular link between the terminal device and the network device, the power determined based on the path loss and the transmission bandwidth on the LTE cellular link, the power determined based on the path loss and the transmission bandwidth on the LTE side downlink, and the power determined based on the channel quality is determined as the first actual transmission power.

Second, the minimum value of any three items of the difference value of the maximum transmission power of the terminal device minus the second transmission power minus the third transmission power minus the fourth transmission power, the power determined based on the path loss and the transmission bandwidth on the NR side link, the power determined based on the path loss and the transmission bandwidth on the NR cellular link between the terminal device and the network device, the power determined based on the path loss and the transmission bandwidth on the LTE cellular link, the power determined based on the path loss and the transmission bandwidth on the LTE side link, and the power determined based on the channel quality is determined as the first actual transmission power.

And thirdly, determining the minimum value of the maximum transmitting power of the terminal device minus the second transmitting power minus the third transmitting power minus the fourth transmitting power, the power determined based on the path loss and the transmission bandwidth on the NR side link, the power determined based on the path loss and the transmission bandwidth on the NR cellular link between the terminal device and the network device, the power determined based on the path loss and the transmission bandwidth on the LTE cellular link, the power determined based on the path loss and the transmission bandwidth on the LTE side link and the power determined based on the channel quality as the first actual transmitting power.

For another example, the determined at least two terms include a difference between the maximum transmission power of the terminal device and the second transmission power, a difference between the third transmission power and the fourth transmission power, and a power determined based on the path loss and the transmission bandwidth on the LTE cellular link, and then the first actual transmission power is determined from a minimum value of the two terms. The method specifically comprises the following steps: min { difference of maximum transmission power of the terminal device minus second transmission power minus third transmission power minus fourth transmission power, based on path loss on the LTE cellular link and power determined by transmission bandwidth }.

And d, distributing power among the NR side link, the NR cellular link, the LTE cellular link and the LTE side link according to a priority rule.

For example, the LTE cellular link first priority, the LTE sidelink second priority, the NR cellular link third priority, and the NR sidelink fourth priority, the actual transmit power of the LTE cellular link is controlled to be the third transmit power, the actual transmit power of the LTE sidelink is controlled to be the fourth transmit power, the actual transmit power of the NR cellular link is controlled to be the second transmit power, and the actual transmit power of the NR sidelink is controlled to be the first transmit power. It is also understood that the transmission power is preferentially allocated to the links other than the NR-side link, and when the difference between the remaining power and the first transmission power of the NR-side link is greater than a preset value, the data on the NR-side link is directly discarded or suspended.

And e, distributing the power to partial links according to the priority rule, and distributing the rest power according to the priority of the data packet on the links.

For example: and distributing power to the LTE cellular link and the LTE side link with higher priority according to a priority rule, and distributing the power to the rest power according to the priority of the data packets to be transmitted on the NR cellular link and the NR side link.

For another example, power is allocated to the LTE cellular link and the LTE sidelink with higher priority according to the priority rule, and then the data packet on which link is to be dropped is determined according to the priority of the data packet to be transmitted on the NR cellular link and the NR sidelink.

Mode f, signaling is used to indicate which link or links power is preferentially allocated to. Further optionally, the remaining links are allocated power equally or in accordance with the priority of the data packets to be transmitted on the respective links.

For example: the preferential allocation of power to the LTE cellular link and LTE sidelink is signaled. Further optionally, the remaining power is allocated equally to the NR cellular link and the NR side downlink.

In this scenario three, the frequency domain resources occupied by the transmission of the NR cellular link, the transmission of the NR side downlink, and the LTE cellular link are different, specifically including any of the following cases.

In case one, the LTE sidelink, the NR sidelink, the LTE cellular link, and the NR cellular link are different carriers in the same frequency band.

Case two, LTE sidelink, NR sidelink, LTE cellular link, NR cellular link are different carriers in different frequency bands.

Case three, any two of the LTE sidelink, NR sidelink, LTE cellular link, NR cellular link are on different carriers in the same frequency band, and the other two are on different carriers in different frequency bands.

In case four, any three of the LTE sidelink, the NR sidelink, the LTE cellular link, and the NR cellular link are on different carriers in the same frequency band, and the other is on different carriers in different frequency bands.

And in case five, any two of the LTE sidelink, the NR sidelink, the LTE cellular link and the NR cellular link are different carriers in the same frequency band, and different carriers of the two other links in different frequency bands are the same carrier in the same frequency band.

In the application, the terminal equipment can simultaneously support the NR cellular link, the LTE cellular link, the NR side link and the LTE side link to work on different carriers in parallel. It should be noted that the total number of carriers used in the four links does not exceed the maximum total number of carriers supported by the terminal device, and the total number of transmission channels used in the four links does not exceed the total maximum number of transmission channels supported by the terminal device.

One approach to meet the requirements of peak single-user rate and system capacity increase is to increase the transmission bandwidth of the system. A technique for increasing the transmission bandwidth, namely, CA (Carrier Aggregation, or Carrier combination), is introduced in the LTE-Advanced system. The CA technology can aggregate 2-5 Component Carriers (CC), so that the maximum transmission bandwidth of 100MHz is realized, and the transmission rate can be effectively improved.

As shown in fig. 4a, 4b and 4c, three carrier aggregation modes are provided in the present application. CA may support aggregation of consecutive carriers within one frequency band (as shown in fig. 4 a), where carrier 1 and carrier 2 are two consecutive carriers within one frequency band, CA may also support aggregation of non-consecutive carriers within the same frequency band (as shown in fig. 4 b), and carrier 1 and carrier 2 may also be two non-consecutive carriers within one frequency band, that is, carrier aggregation within the same frequency band may be divided into consecutive carrier aggregation and non-consecutive carrier aggregation. CA may also support aggregation of carriers in different frequency bands (inter-band) (as shown in fig. 4 c), where carrier 1 is in band 1 and carrier 2 is in band 2, and two carriers in different frequency bands are aggregated, so that one user transmits on two carriers in different frequency bands.

As shown in fig. 5, a communication method provided by the present application includes the following steps:

step 501, the terminal device determines a multi-carrier combination mode of a carrier where a supported sidelink and a cellular link are located. Here, the multicarrier combination scheme includes a combination of a carrier on which the NR side downlink is present and a carrier on which each link other than the NR side downlink is present.

Based on the scenario one, the combination of multiple carriers includes any of the following situations.

Case 1a, the NR side downlink and NR cellular links are on different carriers in the same frequency band.

Case 1b, NR side row link and NR cellular link are different carriers in different frequency bands.

Case 1c, the NR side downlink and NR cellular links are on the same carrier.

Further optionally, when the NR side downlink and the NR cellular link are on the same carrier, the carrier combination may further include: the NR side uplink is at the same BWP of the same carrier as the NR cellular link, or at different BWPs of the same carrier as the NR cellular link.

Accordingly, in this scenario, the capability information may include any one or any plurality of scenario 1a, scenario 1b, and scenario 1 c.

Based on the above scenario two, the combination of multiple carriers includes any of the following situations.

Case 2a, NR side row link, LTE cellular link, NR cellular link are on different carriers in the same band.

Case 2b, NR side row link, LTE cellular link, NR cellular link are different carriers in different frequency bands.

Case 2c, any two of the NR side downlink, LTE cellular, NR cellular links are on different carriers in the same frequency band, and the other is on a different carrier in a different frequency band.

Case 2d, NR side downlink, LTE cellular link, NR cellular link are on the same carrier in the same band.

Accordingly, in this scenario two, the capability information may include any one or any plurality of scenario 2a, scenario 2b, scenario 2c, and scenario 2 d.

Further optionally, when the NR side uplink, the LTE cellular link, and the NR cellular link are on the same carrier, the carrier combination further includes: the NR side link, the LTE cellular link and the NR cellular link are in the same BWP of the same carrier; or the NR side link, the LTE cellular link and the NR cellular link are different BWPs in the same carrier; or any two of the NR side downlink link, the LTE cellular link, and the NR cellular link are in the same BWP in the same carrier, and the other is in a different BWP in the same carrier.

Based on the above scenario three, the combination of multiple carriers includes any of the following situations.

Case 3a, the LTE sidelink, NR sidelink, LTE cellular link, NR cellular link are on different carriers in the same frequency band.

Case 3b, LTE sidelink, NR sidelink, LTE cellular link, NR cellular link are different carriers in different frequency bands.

Case 3c, any two of the LTE sidelink, NR sidelink, LTE cellular link, NR cellular link are on different carriers in the same frequency band, and the other two are on different carriers in different frequency bands.

Case 3d, any two of the LTE sidelink, the NR sidelink, the LTE cellular link, and the NR cellular link are different carriers in the same frequency band, and different carriers of the other two in different frequency bands are the same carrier in the same frequency band.

Case 3e, any three of the LTE sidelink, NR sidelink, LTE cellular link, NR cellular link are on different carriers in the same frequency band, and another is on a different carrier in a different frequency band.

Further optionally, when the NR side uplink, the LTE cellular link, the LTE side uplink, and the NR cellular link are on the same carrier, the carrier combination further includes: the NR side link, the LTE cellular link, the LTE side link and the NR cellular link are in the same BWP of the same carrier wave; or the NR side link, the LTE cellular link, the LTE side link and the NR cellular link are different BWPs in the same carrier wave; or any two of the NR side link, the LTE cellular link and the NR cellular link are in the same BWP of the same carrier, and the other two are in the other BWP of the same carrier; or any three of the LTE sidelink, the NR sidelink, the LTE cellular link, and the NR cellular link are at different BWPs in the same carrier, and the other is at different BWPs in the same carrier.

Accordingly, in this scenario three, the capability information may include any one or any number of scenario 3a, scenario 3b, scenario 3c, scenario 3d, and scenario 3 e.

In the present application, the manner of multicarrier combination may be independent of the above-mentioned power control procedure. That is, the power control method shown in fig. 2 and the communication method shown in fig. 5 are independent of each other.

Alternatively, the approach of multi-carrier combination may also be combined with the power control procedure. That is, based on the multi-carrier combination manner of the carriers where the multiple links are provided in the power control process shown in fig. 2; or may be based on the power control method for the multi-link parallel transmission provided in the communication method shown in fig. 5.

In this application, the multi-carrier combination method may further include, in addition to the combination methods introduced in the above scenario one, scenario two, and scenario three: 1) LTE sidelink + NR cellular link; 2) LTE sidelink + LTE cellular link and NR cellular link.

Based on the scenario of 1) above, the combination of multiple carriers includes any of the following cases.

Case 4a, LTE sidelink, NR cellular link are on different carriers in the same band;

case 4b, different carriers in different frequency bands for LTE sidelink, NR cellular link;

case 4c, the LTE sidelink and the NR cellular link are on the same carrier.

Further optionally, when the LTE side link and the NR cellular link are on the same carrier, the carrier combination further includes: the LTE sidelink and the NR cellular link are in the same BWP of the same carrier, or the LTE sidelink and the NR cellular link are in different BWPs of the same carrier.

Based on the scenario of 2) above, the combination of multiple carriers includes any of the following cases.

Case 5a, LTE sidelink, LTE cellular link, NR cellular link are on different carriers in the same band.

Case 5b, LTE sidelink, LTE cellular link, NR cellular link are different carriers in different frequency bands.

Case 5c, any two of the LTE sidelink, LTE cellular link, NR cellular link are on different carriers in the same frequency band, the other is on a different carrier in a different frequency band.

Case 5d, LTE sidelink, LTE cellular link, NR cellular link are on the same carrier in the same band.

Further optionally, when the LTE sidelink, the LTE cellular link, and the NR cellular link are on the same carrier, the carrier combination further includes: the LTE side link, the LTE cellular link and the NR cellular link are in the same BWP of the same carrier; or different BWPs of the LTE side link, the LTE cellular link and the NR cellular link in the same carrier; or any two of the LTE sidelink, the LTE cellular link, and the NR cellular link are in the same BWP in the same carrier, and the other is in a different BWP in the same carrier.

Step 502, the terminal device determines capability information, where the capability information includes at least one of the multi-carrier combination modes.

In one possible implementation, the capability information further includes at least one of: the maximum transmission rate of the terminal device corresponding to any one of an LTE side uplink, an NR side uplink, an LTE cellular link and the NR cellular link supported by the terminal device; the maximum transmission rate of the terminal device corresponding to any two of the LTE side uplink, the NR side uplink, the LTE cellular link and the NR cellular link supported by the terminal device; maximum transmission rates of terminal devices corresponding to any three of an LTE side uplink, an NR side uplink, an LTE cellular link and the NR cellular link supported by the terminal device respectively; the terminal equipment supports four maximum transmission rates of the terminal equipment respectively corresponding to an LTE side uplink, an NR side uplink, an LTE cellular link and the NR cellular link; a multiple-input multiple-output (MIMO) mode supported by at least one of an LTE side link, an NR side link, an LTE cellular link, and the NR cellular link supported by the terminal device. Optionally, the MIMO mode includes any one of: single antenna transmission mode, multi-antenna transmission mode, transmit diversity transmission mode, and spatial multiplexing transmission mode. Alternatively, the transmit diversity may be any one of space-frequency block coding (SFBC), space-time block coding (STBC), Cyclic Delay Diversity (CDD), codebook-based transmit diversity, and non-codebook-based transmit diversity. Alternatively, the spatial multiplexing may be any one of single-user spatial multiplexing, multi-user spatial multiplexing, codebook-based spatial multiplexing, and non-code-division-based spatial multiplexing. Optionally, in various MIMO transmission modes, the maximum number of antennas required or supported by the terminal device may be further included.

Further, the capability information further includes a total maximum number of transmission channels supported by the terminal device, or a maximum number of carriers of the NR side downlink and any one of the links except the NR side downlink; or, the total maximum number of transmission channels on any one link of the NR side link and each link except the NR side link; or, the channel bandwidth on the NR side link and any one of the links except the NR side link; or, the NR side downlink and any one of the links except the NR side downlink are separated by a subcarrier, where the NR side downlink and any one of the links except the NR side downlink operate on the same carrier or different carriers in the same bandwidth; wherein each link outside the NR-side link includes at least one of: an LTE sidelink, an LTE cellular link, and an NR cellular link. The greater the total maximum number of transmission channels supported by the terminal device, the greater the maximum transmission rate of the terminal device supported by the terminal device.

It should be noted that, because the total maximum number of transmission channels supported by the terminal device is fixed, the terminal device needs to determine the combination mode of multiple carriers and the capability information of the terminal device according to the total maximum number of transmission channels supported. In other words, the terminal device multi-carrier combination and capability information is limited to the total maximum number of transmission channels supported by the terminal device. As the number of carriers or channels used by one link increases, the number of carriers or channels available for the other link necessarily decreases.

Several specific examples of capability information are given below.

Example one, the partial Bandwidth (BWP) of the cellular link uses exactly the same carrier set as the BWP of the sidelink. For example { C₀，C₁，C₂，C₃And they share a Radio Frequency (RF) channel. The total maximum number of transmission channels supported by the terminal device may be one or more. The LTE sidelink and the NR sidelink may be in the same carrier or in different carriers.

Example two, BWP for cellular links uses a completely different set of carriers than BWP for sidelink. E.g. cellular link usage C₀，C₁On one side ofUplink usage { C₂，C₃And they use different RF channels, the total maximum number of transmit channels supported by the terminal device may be two or more.

Wherein, { C₀，C₁Frequency band that can be cellular link, { C }₂，C₃Frequency bands of an Intelligent Transport System (ITS) and cellular link bands. Or, { C₀，C₁Can be the frequency band of the cellular link, C₂Can be a cellular link band, C₃May be the frequency band of the ITS. The LTE sidelink and the NR sidelink may be in the same carrier or in C respectively₂And C₃The above.

Example three, the set of carriers used by BWP of the cellular link is included in the set of carriers used by BWP of the sidelink. E.g. cellular link usage C₀，C₁And sidelink uses { C }₀，C₁，C₂，C₃And they use different RF channels. The total maximum number of transmission channels supported by the terminal device is at least 2. Wherein, { C₀，C₁May be the frequency band of the cellular link. { C₂，C₃It may be the ITS band or the band of the cellular link.

Example four, the set of carriers used by BWP of the cellular link comprises a set of carriers used by BWP of the sidelink. E.g. cellular link usage C₀，C₁，C₂，C₃And sidelink uses { C }₂，C₃At { C }₂，C₃On { C, the terminal device uses the same RF link₀，C₁It can be the same RF chain or a different RF channel chain depending on whether it is an inter-band or an intra-band.

Example five, the BWP of the cellular link uses partially the same carrier or set of carriers as the BWP of the sidelink. E.g. cellular link usage C₀，C₁，C₂And sidelink uses { C }₂，C₃And they use different RF channels. Wherein C is₂Is a carrier of a cellular link. C₃Is the ITS carrier. The total maximum number of transmission channels supported by the terminal device is at least 2. It should be understood that if the number of RF channels is 2, { C } C₀，C₁，C₂It must be a carrier on intra-band.

In step 503, the terminal device sends the capability information to the network device.

In step 503, the terminal device may transmit the capability information to another terminal device.

Accordingly, the network device or other terminal device receives capability information from the terminal device.

As can be seen from steps 501 to 503, the terminal device reports the capability information of each link supported by the terminal device to the network device or other terminal devices, and the network device can determine whether to activate multicarrier transmission currently and determine whether to schedule multiple links for parallel data transmission according to the capability information of the terminal device. That is, the network device can reasonably schedule each link supported by the terminal device based on the capability information reported by the terminal device.

In the application, the network device configures the terminal device with different links to transmit data based on the capability information reported by the terminal device. The process of reporting the capability information to the network device by the terminal device may refer to the above description, and is not described herein again. For example, when the terminal device reports to the network device that data transmission on the NR cellular link and the NR side link is supported on the same carrier (frequency-division multiplexing (FDM)), the terminal device may transmit data on the NR cellular link and the NR side link at the same time. For another example, when the terminal device reports to the network device that simultaneous (FDM) transmission of data on the NR cellular link, the NR sidelink, the LTE cellular link, and the LTE sidelink on the same carrier is supported, the terminal device may transmit data on the NR cellular link, the NR sidelink, the LTE cellular link, and the LTE sidelink at the same time.

When the terminal device determines that the data to be transmitted on the NR cellular link and the NR side uplink partially or completely overlap in the time domain, another processing manner is to perform normal communication with a certain link as a target link for actual transmission, and discard or suspend the data on the remaining links. Alternatively, the target link for actual transmission needs to be determined according to a certain manner or rule.

Fig. 6 shows another communication method provided by the present application. The method comprises the following steps:

step 601, the terminal device determines a target link according to the type of the first information to be transmitted on the NR-side uplink and the type of the second information to be transmitted on the NR cellular link, or according to the type of the second information to be transmitted on the NR cellular link, where the target link is the NR-side uplink or the NR cellular link.

Here, transmission refers to reception or transmission. Alternatively, the second information may be carried in a Physical Uplink Control Channel (PUCCH) or a Physical Uplink Shared Channel (PUSCH).

Step 602, the terminal device communicates through the target link.

Here, when it is determined that the target link is the NR side downlink, the terminal device discards or suspends the second information on the NR cellular link through the first information transmitted by the NR side downlink. When the target link is determined to be an NR cellular link, the terminal device transmits the second information through the NR cellular link, and discards or suspends the first information on the NR side downlink.

In one possible implementation manner, when the type of the second information is any one of aperiodic SRS, feedback information of HARQ, scheduling request SR, RSRP, and beam recovery request message, the NR cellular link is determined to be the target link, where the feedback information of HARQ includes an ACK response message or a NACK response message.

In another possible implementation manner, when the type of the second information is any one of periodic SRS, semi-persistent SRS, codebook SRS, non-codebook SRS, and Channel State Information (CSI), the NR-side uplink is determined as the target link.

In another possible implementation manner, when the priority of the first information is higher than the first threshold and the type of the second information is any one of periodic SRS, semi-persistent SRS, codebook SRS, non-codebook SRS, and CSI, the NR-side downlink is determined as the target link.

In yet another possible implementation, the terminal device may receive first indication information from the network device, the first indication information indicating whether the target link is an NR side link or an NR cellular link. For example, the terminal device receives a Downlink Control Information (DCI) command for dynamic scheduling from the network device, and may indicate a target link using 1 bit in the DCI command. Illustratively, the target link may be indicated as an NR side downlink by 1 and as an NR cellular link by 0. That is, 1 instructs the terminal device to transmit data through the NR-side downlink, and to discard or suspend data on other links; with 0 indicating that the terminal device transmits data over the NR cellular link, dropping or suspending data on the other link. Optionally, the first indication information may also be a system message or a Radio Resource Control (RRC) message.

In another possible implementation manner, when the first information is a data packet and the second information is also a data packet, the priorities of the two data packets may be compared, and a link corresponding to the data packet with the higher priority is a target link.

In another possible implementation manner, when the first information is feedback information of a hybrid automatic repeat request HARQ, the target link is determined according to a priority of a data packet corresponding to the feedback information.

The present application exemplarily shows three possible implementations. One is to determine the NR cellular link as a target link when the first information is feedback information of HARQ and a priority of a packet of the feedback information is higher than a second threshold. And the other one is to respectively determine the priority of the data packet corresponding to the feedback information and the priority of the first information, and determine the link corresponding to the link with the higher priority as the target link. Alternatively, when the priority of the first information is higher than a third threshold value, the NR-side link is determined as a target link.

As can be seen from steps 601 to 602, by determining which link the terminal device currently transmits data through according to the types of the first information and the second information, this helps to reduce the complexity of terminal implementation and reduce the influence on transmission caused by discarding or suspending part of information as much as possible.

In this application, on a transmission resource configured by the network device for the terminal device, the terminal device may send the first information on the NR-side downlink, or may receive the first information. The terminal device determines that the first information is a first data packet, the second information is a second data packet, and the NR side uplink and the NR cellular link are on the same carrier or on adjacent carriers of the same frequency band, because two links on the same carrier or on adjacent carriers share the same radio frequency filter, the transmit-receive interference in the terminal device cannot be suppressed, and thus, the NR cellular link transmission may interfere with the NR side uplink reception. In order to solve this problem, the present application provides a communication method as follows.

As shown in fig. 7, a further communication method provided by the present application includes the following steps:

in step 701, the terminal device determines that the first information on the NR-side downlink is a first data packet and the second information on the NR cellular link is a second data packet.

Here, specifically, the terminal device may wait to receive the first data packet and wait to send the second data packet, or the terminal device may wait to send the first data packet and wait to receive the second data packet.

In step 702, if the terminal device determines that the NR side uplink and the NR cellular link are on the same carrier or on different carriers of the same frequency band, it determines that the NR cellular link is the target link.

It can also be understood that data transmission of the NR cellular link of the terminal device is given the highest priority. That is, when there is data transmission of the NR cellular link on the configured NR transmission resource, the NR-side downlink link stops receiving data.

As can be seen from the above steps 701 to 702, when the NR side uplink and the NR cellular link are both used for transmitting data packets, the data packets on the NR cellular link can be preferentially processed, so that when the implementation cost and complexity of the terminal device are reduced, the influence on the cellular link is reduced as much as possible, and the occurrence of interference in the terminal device can be avoided.

In this application, the terminal device may further determine whether to stop receiving the first packet of the NR-side downlink according to the priority of the first packet. The method specifically comprises the following steps: the network device configures different priorities for different packet types. The NR side downlink of the terminal device determines whether to stop receiving the first packet of the NR side downlink by analyzing the high-layer priority information of the received packet. The determination of the priority may be comparing with a configured threshold, comparing with the priority of the second data packet to be sent of the NR cellular link of the terminal device, or carrying information indicating the priority in signaling (for example, signaling of the priority).

Alternatively, the terminal device may further determine whether to stop receiving the first packet of the NR-side downlink according to the priority of the NR-side downlink resource pool. Specifically, when configuring a resource pool of the NR side uplink for the terminal device, the network device configures a corresponding priority of the resource pool. Or, further, the priority of the NR-side uplink may also be passed by the terminal device at the transmitting end.

Based on the above and the same concept, the present application provides a terminal device for executing any one of the schemes of the terminal device side in the above method flow. Fig. 8 schematically shows a structural diagram of a terminal device provided in the present application. The terminal device 800 in this example may be the terminal device in the above-mentioned content, and may execute the schemes correspondingly executed by the terminal devices in fig. 2, fig. 5, fig. 6, and fig. 7. The terminal device 800 may also be the terminal device 101 or the terminal device 102 described above in fig. 1. As shown in fig. 8, the terminal device 800 includes a processor, a memory, a control circuit, and an antenna. The processor is mainly configured to process the communication protocol and the communication data, control the entire terminal device, execute a software program, and process data of the software program, for example, to support the terminal device 800 to execute the method executed by the terminal device 800 in any of the above embodiments. The memory is used primarily for storing software programs and data. The control circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The control circuit and the antenna together, which may also be called a transceiver, are mainly used for transceiving radio frequency signals in the form of electromagnetic waves.

When the terminal device is turned on, the processor can read the software program in the storage unit, interpret and execute the instruction of the software program, and process the data of the software program. When data needs to be sent wirelessly, the processor outputs a baseband signal to the radio frequency circuit after performing baseband processing on the data to be sent, and the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal outwards in the form of electromagnetic waves through the antenna. When data is transmitted to the terminal device 800, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.

For ease of illustration, fig. 8 shows only one memory and processor. In an actual terminal device, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in this application.

As an alternative implementation manner, the processor may include a baseband processor and a central processing unit, the baseband processor is mainly used for processing the communication protocol and the communication data, and the central processing unit is mainly used for controlling the whole terminal device 800, executing the software program, and processing the data of the software program. The processor in fig. 8 integrates functions of the baseband processor and the central processing unit, and it should be noted that the baseband processor and the central processing unit may also be independent processors, and are interconnected through technologies such as a bus. It should be noted that the terminal device may include a plurality of baseband processors to adapt to different network systems, the terminal device 800 may include a plurality of central processing units to enhance its processing capability, and various components of the terminal device 800 may be connected through various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.

In one example, the antenna and the control circuit having the transceiving function may be regarded as the transceiving unit 902 of the terminal device 900, and the processor having the processing function may be regarded as the processing unit 901 of the terminal device 900. The transceiving unit 902 may also be referred to as a transceiver, a transceiving means, etc. Alternatively, a device for implementing a receiving function in the transceiving unit 902 may be regarded as a receiving unit, and a device for implementing a sending function in the transceiving unit 902 may be regarded as a sending unit, that is, the transceiving unit 902 includes a receiving unit and a sending unit, the receiving unit may also be referred to as a receiver, a receiving circuit, and the like, and the sending unit may be referred to as a transmitter, a sending circuit, and the like.

Downlink signals (including data and/or control information) transmitted by the network equipment are received on the downlink through the antenna, uplink signals (including data and/or control information) are transmitted to the network equipment or other terminal equipment through the antenna on the uplink, and traffic data and signaling messages are processed in the processor according to the radio access technology (e.g., the access technology of LTE, NR, and other evolved systems) adopted by the radio access network. The processor is further configured to control and manage an action of the terminal device, and is configured to execute the processing performed by the terminal device in the foregoing embodiment. The processor is also configured to enable the terminal device to perform the method of fig. 8 that relates to the terminal device.

It will be appreciated that fig. 8 only shows a simplified design of the terminal device. In practical applications, the terminal device may include any number of antennas, memories, processors, etc., and all terminal devices that can implement the present application are within the scope of the present application.

When the communication device is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.

In this application, the transceiver unit is referred to as a transceiver, and the processor unit is referred to as a processor.

In one application, the processor is configured to determine, on a target time domain resource, a first transmit power of an NR-side downlink and transmit powers corresponding to respective links other than the NR-side downlink, and determine, according to the first transmit power and the transmit powers corresponding to the respective links other than the NR-side downlink, a first actual transmit power of the NR-side downlink on the target time domain resource; the target time domain resource is a time domain resource of an overlapping part occupied by the transmission of the NR side link and the transmission of each link except the NR side link, and the frequency domain resources occupied by the transmission of the NR side link and the transmission of each link except the NR side link are different; the transceiver is used for transmitting data.

The following three ways of determining the first actual power by the processor are exemplarily shown.

In a first mode, the processor is configured to: if the sum of the first transmission power and the transmission power corresponding to each link except the NR side link is larger than the maximum transmission power of the terminal equipment, reducing the first transmission power to the first actual transmission power; wherein the first actual transmit power satisfies any one of: the sum of the first actual transmission power and the transmission power respectively corresponding to each link except the NR-side link does not exceed the maximum transmission power; the sum of the first actual transmission power and the transmission power respectively corresponding to each link except the NR-side link does not exceed the maximum transmission power, and the difference between the first actual transmission power and the first transmission power is not greater than a preset value.

In mode two, the processor is configured to: and subtracting a difference value of second transmission powers respectively corresponding to all links except the NR side link from the maximum transmission power of the terminal equipment to determine the maximum transmission power as the first actual transmission power.

In three ways, the processor is configured to: determining the difference value of the maximum transmitting power of the terminal equipment minus the transmitting power corresponding to each link except the NR side link; a power determined based on a path loss and a transmission bandwidth on the NR-side downlink; a power determined based on a path loss and a transmission bandwidth on each link other than the NR-side link; and determining the minimum value of the determined at least two items as the first actual transmission power.

In one possible implementation, each link other than the NR-side link includes any one of: an NR cellular link; NR cellular links and LTE cellular links; NR cellular links, LTE cellular links, and LTE sidelink.

In one possible implementation, the processor is further configured to: determining a combination mode of carriers where the supported NR side link and each link except the NR side link are located; capability information is determined. The transceiver is further configured to send the capability information to a network device or other terminal devices, where the capability information includes at least one of the multicarrier combination schemes.

Further, each link other than the NR-side downlink link includes an NR cellular link, and the combination of the carriers includes any one of: the NR side downlink link and the NR cellular link are on different carriers in the same frequency band; the NR side downlink link and the NR cellular link are different carriers in different frequency bands; the NR side downlink link corresponds to the same carrier as the NR cellular link.

In another application, the processor is configured to determine a target link according to the type of first information to be transmitted on the NR-side uplink and the type of second information to be transmitted on the NR-cellular link, or according to the type of second information to be transmitted on the NR-cellular link, where the target link is the NR-side uplink or the NR-cellular link. The transceiver is used for communicating through the target link.

When the type of the second information is any one of aperiodic SRS, HARQ feedback information (such as ACK response message or NACK response message), scheduling request SR, RSRP, and beam recovery request message, the processor is specifically configured to determine that the NR cellular link is a target link.

The processor is specifically configured to determine the NR-side downlink as a target link when the priority of the first information is higher than a first threshold and the type of the second information is any one of a periodic SRS, a semi-persistent SRS, a codebook SRS, a non-codebook SRS, and CSI.

When the first information is feedback information of HARQ, the processor is configured to: and determining the target link according to the priority of the data packet corresponding to the feedback information.

In one possible implementation, the processor is specifically configured to: determining that the first information is a first data packet, the second information is a second data packet, and the terminal device waits to receive the first data packet and sends the second data packet to the terminal device, or the terminal device sends the first data packet and sends the second data packet to the terminal device; determining the NR cellular link as a target link if it is determined that the NR sidelink and the NR cellular link are on the same carrier or on different carriers of the same frequency band.

In still another application, the processor is configured to determine a multi-carrier combination of carriers where supported sidelink and cellular link are located, and determine capability information, where the multi-carrier combination includes a combination of the carrier where the NR sidelink is located and carriers where links other than the NR sidelink are located, and the capability information includes at least one of the multi-carrier combinations. And the transceiver is used for sending the capability information to network equipment or other terminal equipment.

In one possible implementation, the sidelink comprises an NR sidelink, the cellular link comprises an NR cellular link, and the multicarrier combining comprises any one of: the NR side downlink link and the NR cellular link are on different carriers in the same frequency band; or, the NR side downlink link and the NR cellular link are different carriers in different frequency bands; alternatively, the NR side downlink and the NR cellular link correspond to the same carrier.

In one possible implementation, the capability information further includes at least one of: the maximum transmission rate of the terminal device corresponding to any one of an LTE side uplink, an NR side uplink, an LTE cellular link and the NR cellular link supported by the terminal device; the maximum transmission rate of the terminal device corresponding to any two of the LTE side uplink, the NR side uplink, the LTE cellular link and the NR cellular link supported by the terminal device; maximum transmission rates of terminal devices corresponding to any three of an LTE side uplink, an NR side uplink, an LTE cellular link and the NR cellular link supported by the terminal device respectively; the terminal equipment supports four maximum transmission rates of the terminal equipment respectively corresponding to an LTE side uplink, an NR side uplink, an LTE cellular link and the NR cellular link; and the terminal equipment supports a multiple-input multiple-output (MIMO) mode supported by at least one link of an LTE side link, an NR side link, an LTE cellular link and the NR cellular link. Optionally, the MIMO mode includes any one of: single antenna transmission mode, multi-antenna transmission mode, transmit diversity transmission mode, and spatial multiplexing transmission mode. Alternatively, the transmit diversity may be any of SFBC, STBC, CDD, codebook-based transmit diversity, and non-codebook-based transmit diversity. Alternatively, the spatial multiplexing may be any one of single-user spatial multiplexing, multi-user spatial multiplexing, codebook-based spatial multiplexing, and non-code-division-based spatial multiplexing. Optionally, in various MIMO transmission modes, the maximum number of antennas required or supported by the terminal device may be further included.

Further, the capability information further includes: the total maximum number of transmission channels supported by the terminal equipment, or the maximum number of carrier waves of any one of the NR side link and each link except the NR side link; or, the total maximum number of transmission channels on any one link of the NR side link and each link except the NR side link; or, the channel bandwidth on the NR side link and any one of the links except the NR side link; or, the NR side downlink and any one of the links except the NR side downlink are separated by a subcarrier, where the NR side downlink and any one of the links except the NR side downlink operate on the same carrier or different carriers in the same bandwidth; wherein each link outside the NR-side link includes at least one of: an LTE sidelink, an LTE cellular link, and an NR cellular link.

It should be understood that the processor mentioned in the embodiments of the present application may be a Central Processing Unit (CPU), and may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

It will also be appreciated that the memory referred to in the embodiments of the application may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an electrically Erasable EPROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM, enhanced SDRAM, SLDRAM, Synchronous Link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

It should be noted that when the processor is a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, the memory (memory module) is integrated in the processor.

It should be noted that the memory described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Based on the above and the same concept, the present application provides a terminal device for executing any one of the schemes of the terminal device side in the above method flow. Fig. 9 schematically shows a structural diagram of a terminal device provided by the present application. As shown in fig. 9, the terminal apparatus 900 includes a processing unit 901 and a transceiving unit 902. The terminal device 900 in this example may be the terminal device in the above description, and may execute the schemes correspondingly executed by the terminal devices in fig. 2, fig. 5, fig. 6, and fig. 7. The terminal device 900 may also be the terminal device 101 or the terminal device 102 described above in fig. 1.

In one application, the processing unit 901 is configured to determine, on a target time domain resource, a first transmit power of an NR-side downlink and transmit powers corresponding to links other than the NR-side downlink, and determine, according to the first transmit power and the transmit powers corresponding to the links other than the NR-side downlink, a first actual transmit power of the NR-side downlink on the target time domain resource; the target time domain resource is a time domain resource of an overlapping part occupied by the transmission of the NR side link and the transmission of each link except the NR side link, and the frequency domain resources occupied by the transmission of the NR side link and the transmission of each link except the NR side link are different; the transceiver 902 is configured to transmit data.

For the relevant content of the above optional implementation in the embodiment of the present application, reference may be made to the above embodiment, which is not described herein again.

In another application, the processing unit 901 is configured to determine a target link according to the type of the first information to be transmitted on the NR-side uplink and the type of the second information to be transmitted on the NR cellular link, where the target link is an NR-side uplink or an NR cellular link. The transceiving unit 902 is configured to perform communication through the target link.

In still another application, the processing unit 901 is configured to determine a multi-carrier combination manner of carriers where supported sidelink and cellular link are located, where the multi-carrier combination manner includes a combination of the carrier where the NR sidelink is located and the carrier where each link other than the NR sidelink is located, and determine the capability information. The transceiver 902 is configured to send the capability information to a network device or other terminal devices, where the capability information includes at least one of multi-carrier combination manners.

It should be understood that the above division of the units of each terminal device is only a division of logical functions, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. In this application, the processing unit 901 may be implemented by the processor of fig. 8, and the transceiver unit 902 may be implemented by the transceiver 8 of fig. 8. That is to say, in this application, the transceiver unit 902 may execute the scheme executed by the transceiver in fig. 8, and in this application, the processing unit 901 may execute the scheme executed by the processor in fig. 8, and the rest of the contents may refer to the above contents, which is not described herein again.

In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware or any combination thereof, and when the implementation is realized by a software program, all or part of the implementation may be realized in the form of a computer program product. The computer program product includes one or more instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The instructions may be stored on or transmitted from one computer storage medium to another, for example, the instructions may be transmitted from one website site, computer, server, or data packet center to another website site, computer, server, or data packet center by wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). A computer storage medium may be any available medium that can be accessed by a computer or a packet storage device comprising one or more integrated servers, packet centers, etc. that can store a program or data. The usable medium may be a magnetic medium (e.g., a flexible Disk, a hard Disk, a magnetic tape, a magneto-optical Disk (MO), etc.), an optical medium (e.g., a CD, a DVD, a BD, an HVD, etc.), or a semiconductor medium (e.g., a ROM, an EPROM, an EEPROM, a nonvolatile memory (NAND FLASH), a Solid State Disk (SSD)), etc.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

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 instructions. These instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data packet processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data packet processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data packet processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

The instructions may also be loaded onto a computer or other programmable data packet processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

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 power control, comprising:

the method comprises the steps that terminal equipment determines first transmitting power of an NR side link and transmitting power corresponding to each link except the NR side link on a target time domain resource;

the terminal equipment determines first actual transmission power of the NR side link on the target time domain resource according to the first transmission power and the transmission power corresponding to each link except the NR side link;

the target time domain resource is a time domain resource of an overlapping portion occupied by the transmission of the NR side link and the transmission of each link except the NR side link, and the frequency domain resources occupied by the transmission of the NR side link and the transmission of each link except the NR side link are different.

2. The method of claim 1, wherein the determining, by the terminal device, a first actual transmit power of the NR-side downlink on the target time domain resource according to the first transmit power and transmit powers corresponding to respective links other than the NR-side downlink, comprises:

if the terminal equipment determines that the sum of the first transmission power and the transmission power corresponding to each link except the NR side link is larger than the maximum transmission power of the terminal equipment, the first transmission power is reduced to the first actual transmission power;

wherein the first actual transmit power satisfies any one of:

the sum of the first actual transmission power and the transmission power respectively corresponding to each link except the NR-side link does not exceed the maximum transmission power;

the sum of the first actual transmission power and the transmission power respectively corresponding to each link except the NR-side link does not exceed the maximum transmission power, and the difference between the first actual transmission power and the first transmission power is not greater than a preset value.

3. The method of claim 1, wherein the determining, by the terminal device, the first actual transmission power of the NR-side uplink on the first time domain resource according to the first transmission power and the transmission powers corresponding to the links other than the NR-side uplink respectively comprises:

the terminal equipment subtracts a difference value of second transmitting powers respectively corresponding to all links except the NR side link from the maximum transmitting power of the terminal equipment to determine the maximum transmitting power as the first actual transmitting power; alternatively, the first and second electrodes may be,

the terminal device determines any at least two items of the following contents, and determines the minimum value of the determined at least two items as the first actual transmission power:

subtracting the difference value of the transmitting power corresponding to each link except the NR side link from the maximum transmitting power of the terminal equipment;

a power determined based on a path loss and a transmission bandwidth on the NR-side downlink;

a power determined based on a path loss and a transmission bandwidth on each link other than the NR-side link;

a power determined based on the channel quality.

4. A method according to any one of claims 1 to 3, wherein each link other than the NR-side row link includes any one of:

an NR cellular link;

NR cellular links and LTE cellular links;

NR cellular links, LTE cellular links, and LTE sidelink.

5. The method of any of claims 1 to 4, further comprising:

the terminal equipment determines the carrier wave combination mode of the carrier wave of the supported NR side link and the carrier wave of each link except the NR side link;

the terminal equipment determines capability information, wherein the capability information comprises at least one of the multi-carrier combination modes;

and the terminal equipment sends the capability information to network equipment or other terminal equipment.

6. The method of claim 5, wherein each link other than the NR-side link comprises an NR cellular link, and wherein the combination of carriers comprises any one of:

the NR side downlink link and the NR cellular link are on different carriers in the same frequency band;

the NR side downlink link and the NR cellular link are different carriers in different frequency bands;

the NR side downlink link corresponds to the same carrier as the NR cellular link.

7. A method of communication, comprising:

the terminal equipment determines a target link according to first information to be transmitted on an NR side link and the type of second information to be transmitted on an NR cellular link, or according to the type of the second information to be transmitted on the NR cellular link, wherein the target link is the NR side link or the NR cellular link;

and the terminal equipment communicates through the target link.

8. The method of claim 7, wherein the terminal device determining a target link according to the type of second information to be transmitted on the NR cellular link, comprises:

determining the NR cellular link as a target link when the type of the second information is any one of:

aperiodic sounding reference signal SRS;

feedback information of a hybrid automatic repeat request HARQ;

a scheduling request SR;

reference signal received power, RSRP;

a beam recovery request message.

9. The method of claim 7, wherein the terminal device determining a target link according to the type of second information to be transmitted on the NR cellular link, comprises:

determining the NR-side downlink as a target link when the type of the second information is any one of:

a periodic SRS;

semi-persistent SRS;

SRS of the codebook;

a non-codebook SRS;

channel state information CSI.

10. The method of claim 7, wherein the terminal device determining a target link according to the type of the first information to be transmitted on the NR-side link and the second information to be transmitted on the NR cellular link, comprises:

determining the NR-side downlink as a target link when the priority of the first information is higher than a first threshold and the type of the second information is any one of:

a periodic SRS;

semi-persistent SRS;

SRS of the codebook;

a non-codebook SRS;

channel state information CSI.

11. The method of claim 7, wherein the terminal device determining a target link according to the type of the first information to be transmitted on the NR-side link and the second information to be transmitted on the NR cellular link, comprises:

the terminal equipment determines that first information is a first data packet, and the second information is a second data packet; the terminal device waits to receive a first data packet and a second data packet to be sent, or the terminal device waits to send the first data packet and the second data packet to be received;

and if the terminal equipment determines that the NR side link and the NR cellular link are on the same carrier or different carriers of the same frequency band, determining that the NR cellular link is a target link.

12. The method of claim 7, wherein the terminal device determining a target link according to the type of the first information to be transmitted on the NR-side link and the second information to be transmitted on the NR cellular link, comprises:

and when the first information is feedback information of hybrid automatic repeat request (HARQ), determining the target link according to the priority of a data packet corresponding to the feedback information.

13. A method of communication, comprising:

the terminal equipment determines a multi-carrier combination mode of a carrier where a supported side link and a cellular link are located, wherein the multi-carrier combination mode comprises a combination of the carrier where an NR side link is located and the carrier where each link except the NR side link is located;

the terminal equipment determines capability information, and the capability information corresponds to the multi-carrier combination mode;

14. The method of claim 13, wherein the sidelink comprises an NR sidelink, the cellular link comprises an NR cellular link, and the multi-carrier combining comprises any one of:

15. The method of claim 13, wherein the capability information further comprises at least one of:

the maximum transmission rate of the terminal device corresponding to any one of an LTE side uplink, an NR side uplink, an LTE cellular link and the NR cellular link supported by the terminal device;

the maximum transmission rate of the terminal device corresponding to any two of an LTE side uplink, an NR side uplink, an LTE cellular link and an NR cellular link supported by the terminal device;

the maximum transmission rate of the terminal device corresponding to any three of an LTE side uplink, an NR side uplink, an LTE cellular link and an NR cellular link supported by the terminal device;

the terminal device supports four maximum transmission rates of the terminal device corresponding to an LTE side uplink, an NR side uplink, an LTE cellular link and an NR cellular link respectively;

a multiple-input multiple-output (MIMO) mode supported by at least one of an LTE side link, an NR side link, an LTE cellular link, and the NR cellular link supported by the terminal device.

16. The method of any of claims 13 to 14, wherein the capability information further comprises at least one of:

the total maximum number of transmitting channels supported by the terminal equipment;

a maximum carrier number of the NR side link and any one of links other than the NR side link;

the total maximum number of transmission channels on any one of the NR side link and each link except the NR side link;

a channel bandwidth on any one of the NR side link and each link other than the NR side link;

the NR side link and any one of the links except the NR side link work on the same carrier or different carriers in the same frequency bandwidth;

wherein each link outside the NR-side link includes at least one of: an LTE sidelink, an LTE cellular link, and the NR cellular link.

17. A communications apparatus, comprising a processor and a transceiver:

the processor is configured to determine, on a target time domain resource, a first transmit power of an NR-side downlink and transmit powers corresponding to links other than the NR-side downlink, and determine, according to the first transmit power and the transmit powers corresponding to the links other than the NR-side downlink, a first actual transmit power of the NR-side downlink on the target time domain resource; the target time domain resource is a time domain resource of an overlapping part occupied by the transmission of the NR side link and the transmission of each link except the NR side link, and the frequency domain resources occupied by the transmission of the NR side link and the transmission of each link except the NR side link are different;

the transceiver is configured to transmit data based on the first actual transmit power determined by the processor.

18. The communications apparatus of claim 17, wherein the processor is specifically configured to:

if the sum of the first transmission power and the transmission power corresponding to each link except the NR side link is larger than the maximum transmission power of the terminal equipment, reducing the first transmission power to the first actual transmission power;

wherein the first actual transmit power satisfies any one of:

19. The communications apparatus of claim 17, wherein the processor is specifically configured to:

subtracting a difference value of second transmission powers respectively corresponding to all links except the NR side link from the maximum transmission power of the terminal equipment to determine the maximum transmission power as the first actual transmission power; or, determining any at least two of the following items, and determining the minimum value of the determined at least two items as the first actual transmission power:

subtracting the difference value of the transmitting power corresponding to each link except the NR side link from the maximum transmitting power of the terminal equipment; a power determined based on a path loss and a transmission bandwidth on the NR-side downlink; a power determined based on a path loss and a transmission bandwidth on each link other than the NR-side link; a power determined based on the channel quality.

20. The communication apparatus according to any one of claims 17 to 19, wherein each link other than the NR-side link includes any one of:

an NR cellular link;

NR cellular links and LTE cellular links;

NR cellular links, LTE cellular links, and LTE sidelink.

21. The communications apparatus of any of claims 17-20, wherein the processor is further configured to:

determining a combination mode of carriers where the supported NR side link and each link except the NR side link are located; determining capability information, wherein the capability information comprises at least one of the multi-carrier combination modes;

the transceiver is also used for

And sending the capability information to network equipment or other terminal equipment.

22. The communications apparatus of claim 20, wherein each link other than the NR-side link comprises an NR cellular link, and wherein the combination of carriers comprises any of:

23. A communications apparatus, comprising a processor and a transceiver:

the processor is configured to determine a target link according to the type of first information to be transmitted on an NR-side uplink and the type of second information to be transmitted on an NR-cellular link, or according to the type of second information to be transmitted on an NR-cellular link, where the target link is an NR-side uplink or an NR-cellular link;

the transceiver is used for communicating through the target link.

24. The communications apparatus of claim 23, wherein the processor is specifically configured to:

aperiodic sounding reference signal SRS;

feedback information of a hybrid automatic repeat request HARQ;

a scheduling request SR;

reference signal received power, RSRP;

a beam recovery request message.

25. The communications apparatus of claim 23, wherein the processor is specifically configured to:

a periodic sounding reference signal, SRS;

semi-persistent SRS;

SRS of the codebook;

a non-codebook SRS;

channel state information CSI.

26. The communications apparatus of claim 23, wherein the processor is specifically configured to:

determining that the first information is a first data packet, and the second information is a second data packet; the terminal device waits to receive a first data packet and a second data packet to be sent, or the terminal device waits to send the first data packet and the second data packet to be received;

determining the NR cellular link as a target link if it is determined that the NR sidelink and the NR cellular link are on the same carrier or on different carriers of the same frequency band.

27. The communications apparatus of claim 23, wherein the processor is specifically configured to:

28. A communications apparatus, comprising a processor and a transceiver:

the processor is configured to determine a multi-carrier combination mode of a carrier where a supported sidelink and a cellular link are located, and determine capability information, where the multi-carrier combination mode includes a combination of a carrier where an NR sidelink is located and a carrier where each link other than the NR sidelink is located, and the capability information includes at least one of the multi-carrier combination modes;

and the transceiver is used for sending the capability information to network equipment or other terminal equipment.

29. The communications apparatus of claim 28, the sidelink comprises an NR sidelink, the cellular link comprises an NR cellular link, and the multi-carrier combining comprises any of:

30. The communications apparatus of claim 28, the capability information further comprises at least one of:

a MIMO mode supported by at least one of an LTE sidelink, an NR sidelink, an LTE cellular link, and the NR cellular link supported by the terminal device.

31. A storage medium comprising instructions which, when run on a computer, cause the computer to perform the method of any one of claims 1 to 16.