CN112822776A

CN112822776A - Information transmission method and device

Info

Publication number: CN112822776A
Application number: CN201911127708.2A
Authority: CN
Inventors: 祝慧颖; 董朋朋; 窦圣跃; 周国华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2021-05-18

Abstract

The application provides an information transmission method and device, which can meet the low delay requirement while ensuring large broadband transmission by scheduling different carrier frequency spectrums for transmission. The method comprises the following steps: the method comprises the steps that first transceiver equipment receives a first message from second transceiver equipment, wherein the first message comprises first carrier indication information and/or second carrier indication information; the first transceiver device sends first control information to a third transceiver device on the first carrier, wherein the first control information is used for indicating the second carrier; and the first transceiver device transmits data information to the third transceiver device on the second carrier, wherein the first carrier is different from the second carrier, and the third transceiver device and the first transceiver device perform side-chain transmission.

Description

Information transmission method and device

Technical Field

The present application relates to the field of communications, and more particularly, to a method and apparatus for information transmission.

Background

With the continuous evolution of wireless communication technology and the popularization of intelligent terminals, the number of terminals in a wireless cellular network is in an explosive growth stage, and meanwhile, a large number of terminal users have strong demands for high rate, large capacity and low delay. In addition, application scenarios such as public safety, social networking, close range data sharing, local advertising, etc. have increased the demand of mobile users to know about and communicate with nearby users, also known as Proximity Services (ProSe). Under the background of the demand, a Device to Device (D2D) communication technology comes, the D2D technology can realize direct communication between close-range terminals without the relay of a base station, effectively reduce transmission delay, and is suitable for high-rate data stream transmission, moreover, the D2D communication is introduced into a cellular network, which can reduce the burden of the base station, the D2D communication can work on an authorized frequency band and still be controlled by the base station, and can be adaptively configured or scheduled according to a scene, and the spectral efficiency can be improved by multiplexing the spectrum of a cellular user.

For asymmetric uplink and downlink data transmission rates, currently, a Time Division Duplex (TDD) technology is used to support different uplink and downlink Time ratios, and a base station can adaptively adjust the uplink and downlink Time ratios according to different service types by using one carrier, that is, Time resources are differentially allocated in two transmission directions by using the same carrier, so as to meet asymmetric uplink and downlink service requirements. In a D2D communication scene, time resources are differentially distributed in a bidirectional transmission direction, and users with less sending traffic can send the time resources only after the receiving time slot is finished; or, a Hybrid Automatic Repeat reQuest (HARQ) message of a user with a large traffic is sent, and the HARQ message needs to wait for a receiving time slot to be received, and the delay is severely limited by a receiving and sending switching period, so that the low-delay requirement cannot be met.

Disclosure of Invention

The application provides an information transmission method and device, which can meet the low delay requirement while ensuring large broadband transmission by scheduling different carrier frequency spectrums for transmission.

In a first aspect, a method for information transmission is provided, including: first, a first transceiver device (for example, the first transceiver device is a terminal device or a chip in the terminal device) receives a first message from a second transceiver device, where the first message includes first carrier indication information and/or second carrier indication information, the first carrier indication information is used to indicate a first carrier, and the second carrier indication information is used to indicate a second carrier; then, sending first control information to a third transceiver device on the first carrier, where the first control information is used to indicate the second carrier; and finally, sending data information to the third transceiver device on the second carrier, where the first carrier is different from the second carrier, and the third transceiver device and the first transceiver device perform side-chain transmission therebetween. Therefore, the first transceiver device sends the control information and the data information to the third transceiver device on different carriers, so that the first transceiver device is not limited by the transceiving cycle limit in the same carrier, and can meet the requirement of low delay.

The first control information is used for indicating a second carrier, and may be replaced with: the first control information is used to indicate a carrier used for transmitting the data information, that is, a carrier used by the first transceiver device to transmit the data information to the third transceiver device.

Optionally, the first control information is used for scheduling the data information.

Optionally, on which carrier the data information is transmitted may also be predefined. Thus, if the first control information and the second control information are not required, the transmission of the data information can be realized.

In one possible implementation, the method further includes: and the first transceiver device sends second control information to the third transceiver device on the second carrier, wherein the second control information is used for scheduling the data information. Here, the second carrier may also carry control information for scheduling data information on the present carrier. By transmitting the second control information and the data information on the second carrier, the third transceiver device can switch to the second carrier to continuously receive the second control information and the data scheduled by the second control information after receiving the first control message for carrier indication on the first carrier. Therefore, under the condition that a plurality of data are required to be continuously transmitted, the scheduling information does not need to be received on the first carrier, and then the second carrier is switched to receive the data information, the scheduling information and the data information are received on one carrier, and frequent carrier switching is avoided.

Optionally, the first message further includes third carrier indication information, where the third carrier indication information is used to indicate a third carrier, and the method further includes: the first transceiver device receives feedback control information from the third transceiver device on the third carrier, where the first control information is further used to indicate the third carrier. Wherein the feedback control information may include HARQ feedback information or a channel state information, CSI, measurement result. Thus, the first transceiving device may also receive feedback control information from the third transceiving device on the third carrier.

Alternatively, the feedback control information may be feedback information for data information transmitted on the second carrier.

In a possible implementation manner, the first transceiver device receives feedback control information from the third transceiver device on the first carrier. Thus, the first transceiving device may also receive feedback control information from the third transceiving device on the first carrier.

Optionally, the first message further includes a first index, the first index being used to identify a carrier set group, the carrier set group including one or more of: the first carrier, the second carrier, and a third carrier; the first control information is used for indicating the second carrier, and includes: the first control information includes a second index indicating the second carrier in the carrier set group, or the second index indicating the second carrier and the third carrier in the carrier set group. Therefore, the first transceiver device obtains the carrier set group identified by the first index through the first index, and carries a second index in the first control information, where the second index is used to identify the second carrier in the carrier set group, or the second carrier and the third carrier, so as to notify the carrier identified by the second index to a third transceiver device.

Optionally, the first message further includes a first carrier switch instruction, where the first carrier switch instruction instructs the first transceiver device to switch from the first carrier to the second carrier when sending data information to the third transceiver device; the first control information is used for indicating a second carrier, and includes: the first control information includes a second carrier switch instruction, where the second carrier switch instruction is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data information. Therefore, the first transceiver device may indirectly inform the third transceiver device which carriers to use for receiving the data information through the carrier switch indication.

In one possible implementation, before the first transceiver device receives the first message from the second transceiver device, the method further includes: the first transceiver device sends a request message to the second transceiver device, where the request message is used to request a carrier for transmitting control information or data information.

Optionally, the first message includes semi-persistent scheduling, SPS, configuration information, the SPS configuration information including transmission period indication information; the first transceiver device sends first control information to a third transceiver device on the first carrier at intervals of the transmission cycle based on the transmission cycle indicated by the transmission cycle indication information, wherein the first control information comprises the transmission cycle indication information; and the first transceiver device sends data information to the third transceiver device on the second carrier at intervals of the transmission period based on the transmission period indicated by the transmission period indication information.

Optionally, the first control information comprises semi-persistent scheduling, SPS, configuration information, the SPS configuration information comprising transmission period indication information, the SPS configuration information being used to instruct the third transceiver device to perform, based on the transmission period indication information, one or more of: and receiving the data information and/or the second control information on the second carrier at intervals of the transmission period based on the transmission period indicated by the transmission period indication information, and sending feedback control information on the third carrier.

By introducing the SPS configuration information, it may be achieved that the control message (such as the first message or the first control information) is valid in the semi-persistent scheduling period until the semi-persistent scheduling is released, so that the control message does not need to be transmitted before each data transmission, which may help to save resource overhead.

Optionally, the second carrier comprises one or more carriers.

In a second aspect, a method for information transmission is provided, including: a third transceiver device (for example, the third transceiver device is a terminal device or a chip in the terminal device) receives first control information sent from the first transceiver device on a first carrier, where the first control information is used to indicate a second carrier; and receiving data information from a first transceiver device on the second carrier, wherein the first carrier is different from the second carrier, and the third transceiver device and the first transceiver device are in side-chain transmission. The first carrier is determined by the first transceiver device by receiving a first message from a second transceiver device, where the first message includes first carrier indication information, and the first carrier indication information is used to indicate a first carrier; and/or the second carrier is determined by the first transceiver device by receiving a first message from the second transceiver device, where the first message includes second carrier indication information, and the second carrier indication information is used to indicate the second carrier. Therefore, the third transceiver device receives the control information and the data information from the first transceiver device on different carriers, so that the third transceiver device is not limited by the transceiving cycle limit in the same carrier, and can meet the requirement of low delay.

In one possible implementation, the method further includes: the third transceiver device receives second control information from the first transceiver device on the second carrier, where the second control information is used for scheduling the data information. Here, the second carrier may also carry control information for scheduling data information on the present carrier. By transmitting the second control information and the data information on the second carrier, the third transceiver device can switch to the second carrier to continuously receive the second control information and the data scheduled by the second control information after receiving the first control message for carrier indication on the first carrier. Therefore, under the condition that a plurality of data are required to be continuously transmitted, the scheduling information does not need to be received on the first carrier, and then the second carrier is switched to receive the data information, the scheduling information and the data information are received on one carrier, and frequent carrier switching is avoided.

In one possible implementation, the method further includes: the third transceiver device sends feedback control information to the first transceiver device or the second transceiver device on a third carrier, where the first control information is further used to indicate the third carrier. Wherein the feedback control information may include HARQ feedback information or a channel state information, CSI, measurement result. Thus, the third transceiving device may also transmit feedback control information on the third carrier.

In one possible implementation, the method further includes: and the third transceiver device sends feedback control information to the first transceiver device or the second transceiver device on the first carrier.

Optionally, the first control information includes a second carrier switch instruction, where the second carrier switch instruction is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data; and the third transceiver receives the data information from the first transceiver on the second carrier according to the second carrier switching indication. Therefore, the third transceiver device can know whether to switch to the second carrier to receive the data information through the second carrier switching indication.

In one possible implementation, the method further includes: the method further comprises the following steps: the third transceiver device receives the first message from the second transceiver device. That is, the third transceiving equipment may also directly receive the first message from the second transceiving equipment to obtain the carrier indication information.

Optionally, the first message includes a third carrier switch indication, where the third carrier switch indication is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data; and the third transceiver receives the data information from the first transceiver on the second carrier according to the third carrier indication information. Therefore, the third transceiver device may obtain the third carrier switch indication through the first message sent by the second transceiver device, so as to decide whether to switch to the second carrier for receiving the data information based on the third carrier switch indication.

Optionally, the first message further includes a first index, where the first index is used to indicate a carrier set group, and the carrier set group includes the first carrier, the second carrier, and a third carrier; the first control information is used for indicating the second carrier, and includes: the first control information includes a second index indicating the second carrier in the carrier set group, or the second index indicating the second carrier and the third carrier in the carrier set group. Therefore, the third transceiver device may obtain the carrier set group identified by the first index through the first index, and then learn the second carrier, or the second carrier and the third carrier, through the second index.

Optionally, the first control information further includes semi-persistent scheduling, SPS, configuration information, the SPS configuration information including transmission cycle indication information, the SPS configuration information being used to instruct the third transceiver device to perform, based on the transmission cycle indication information, one or more of the following operations: and receiving the data information and/or the second control information on the second carrier at intervals of the transmission period based on the period indicated by the transmission period indication information, and sending feedback control information on the third carrier. By introducing the SPS configuration information, it may be achieved that the control message (such as the first message or the first control information) is valid in the semi-persistent scheduling period until the semi-persistent scheduling is released, so that the control message does not need to be transmitted before each data transmission, which may help to save resource overhead.

Optionally, the method further comprises: the third transceiver device acquires configuration information of Discontinuous Reception (DRX); the third transceiving equipment performs discontinuous reception based on the configuration information of the DRX. Here, the third transceiving equipment performs discontinuous reception through the configuration information based on the DRX, may enter a sleep state within a non-duration time, and does not monitor the control information sent by the first transceiving equipment any more, thereby effectively reducing power consumption of the third transceiving equipment, and being capable of increasing the service time of the battery.

Optionally, the second carrier comprises one or more carriers.

In a third aspect, a method for information transmission is provided, including: a second transceiver device (for example, the second transceiver device is a network device or a chip in the network device) determines a first message, where the first message includes first carrier indication information and/or second carrier indication information, the first carrier indication information is used to indicate a first carrier, the second carrier indication information is used to indicate a second carrier, the first carrier is a carrier used for the first transceiver device to transmit control information to a third transceiver device, and the second carrier is a carrier used for the first transceiver device to transmit data information to the third transceiver device; and sending the first message to the first transceiver device. Therefore, the second transceiver configures different carriers for the first transceiver and the third transceiver, so that the control information and the data information are transmitted on different carriers, which is not limited by the transceiving cycle limitation in the same carrier, and can meet the requirement of low delay.

In one possible implementation, the method further includes: the second transceiver device sends the first message to a third transceiver device. That is, the second transceiving device may not only transmit the first message to the first transceiving device, but may also transmit the first message to a third transceiving device.

Optionally, the first message further includes third carrier indication information, where the third carrier indication information is used to indicate a third carrier, and the third carrier is used for the second transceiver device to send feedback control information.

Here, the second transceiving device may receive feedback control information from the third transceiving device on the first carrier or the third carrier.

In one possible implementation, the method further includes: the second transceiving equipment receives feedback control information from the third transceiving equipment on the third carrier.

In one possible implementation, the method further includes: the second transceiving equipment receives feedback control information from the third transceiving equipment on the first carrier.

Optionally, the first message further includes a first index, where the first index is used to indicate a carrier set group, and the carrier set group includes one or more of the following: the first carrier, the second carrier, and a third carrier.

Optionally, the first message further includes a first carrier switch instruction, where the first carrier switch instruction instructs the first transceiver device to switch from the first carrier to the second carrier when sending data to the third transceiver device.

Optionally, before the second transceiver device sends the first message to the first transceiver device, the method further includes: the second transceiver device receives a request message from the first transceiver device, where the request message is used to request a carrier for transmitting control information or data information. Here, the second transceiving device may configure a carrier for transmitting control information or data information for the second transceiving device based on the request message of the first transceiving device.

Optionally, the first message further includes semi-persistent scheduling, SPS, configuration information, which includes transmission cycle indication information; the SPS configuration information is to instruct the first transceiver device to perform one or more of the following operations based on the transmission cycle indication information: and sending first control information to third transceiver equipment on the first carrier based on the period indicated by the transmission period indication information, and sending data information to the third transceiver equipment on the second carrier.

In a fourth aspect, a method for information transmission is provided, including: first, a first transceiver device (for example, the first transceiver device is a terminal device or a chip in the terminal device) acquires carrier set configuration information, where the carrier set configuration information indicates multiple carriers; then, the first transceiver device selects a first carrier and/or a second carrier from the multiple carriers according to a preset condition; finally, the first transceiver device sends first control information to a third transceiver device on the first carrier, where the first control information is used to indicate the second carrier; and sending data information to the third transceiver device on the second carrier, wherein the first carrier is different from the second carrier. Therefore, the first transceiver device may select a carrier for transmitting control information and/or a carrier for transmitting data information by itself, and transmit the control information and the data information to the third transceiver device on different carriers, which may not be limited by the limitation of the transceiving cycle in the same carrier, and may meet the requirement of low delay.

Optionally, the preset conditions include one or more of the following conditions: and the traffic of the first transceiver meets a preset condition, and the channel quality indicated value meets the preset condition.

Optionally, the fact that the traffic volume of the first transceiver device meets the preset condition means that: the traffic volume sent by the first transceiver device satisfies a first mapping relationship, where the first mapping relationship includes a correspondence between the traffic volume and a carrier.

Optionally, the that the channel quality indication value satisfies the preset condition is: the channel quality indicator value satisfies a second mapping relationship including a correspondence between the carrier and the channel quality value.

Optionally, the first control information includes a carrier switch indication, where the carrier switch indication is used to indicate that the third transceiver device switches from the first carrier to the second carrier when receiving data.

Optionally, the method further comprises: and the first transceiver device sends second control information to the third transceiver device on the second carrier, wherein the second control information is used for scheduling the data information.

Optionally, the method further comprises: the first transceiver device selects a third carrier from the multiple carriers according to the preset condition; the first transceiver device receives feedback control information from the third transceiver device on the third carrier, where the first control information is further used to indicate the third carrier.

Optionally, the first control information is used to indicate the second carrier, and includes: the first control information includes a second index indicating the second carrier of the multiple carriers, or the second index indicates the second carrier and a third carrier of the multiple carriers.

In a fifth aspect, a method for information transmission is provided, including: first, a third transceiver device (for example, the third transceiver device is a terminal device or a chip in the terminal device) acquires carrier set configuration information, where the carrier set configuration information indicates multiple carriers; then, the third transceiver device receives first control information from the first transceiver device on the first carrier, where the first control information is used to indicate a second carrier in the multiple carriers; the third transceiver device receives data information from the first transceiver device on the second carrier, where the first carrier is different from the second carrier. Therefore, the third transceiver device receives the control information and the data information on different carriers, so that the third transceiver device is not limited by the transceiving cycle limit in the same carrier, and can meet the requirement of low time delay. Wherein the first carrier and/or the second carrier are selected by the first transceiving equipment based on a preset condition.

Optionally, the first control information includes a carrier switch indication, where the carrier switch indication is used to indicate that the third transceiver device switches from the first carrier to the second carrier when receiving data; and the third transceiver receives the data information from the first transceiver on the second carrier according to the carrier switching indication.

Optionally, the method further comprises: and the third transceiver equipment sends feedback control information on a third carrier wave.

In a sixth aspect, a communication device is provided that comprises means or units for performing the method of any one of the possible implementations of the first or fourth aspect.

In a seventh aspect, a communications apparatus is provided that includes a processor. The processor is coupled to the memory and is operable to execute the instructions in the memory to implement the method of any of the possible implementations of the first aspect or the fourth aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the communication device is a first transceiver device, such as a terminal device or an access point. When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip configured in the terminal equipment. When the communication device is a chip configured in a terminal device, the communication interface may be an input/output interface.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In an eighth aspect, a communication device is provided, which comprises modules or units for performing the method of any one of the possible implementations of the second aspect or the fifth aspect.

In a ninth aspect, a communications apparatus is provided that includes a processor. The processor is coupled to the memory and is operable to execute the instructions in the memory to implement the method of any of the possible implementations of the second aspect or the fifth aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the communication device is a third transceiver device, such as a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In a tenth aspect, a communication device is provided, which comprises means for performing the method of any one of the possible implementations of the third aspect.

In an eleventh aspect, a communications apparatus is provided that includes a processor. The processor is coupled to the memory and is operable to execute the instructions in the memory to implement the method of any one of the possible implementations of the third aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface.

In one implementation, the communication device is a second transceiver device, such as an access network device (or network device). When the communication device is an access network device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip configured in the access network equipment. When the communication device is a chip configured in an access network device, the communication interface may be an input/output interface.

In a twelfth aspect, a processor is provided, comprising: input circuit, output circuit and processing circuit. The processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that the processor performs the method in any one of the possible implementations of the first aspect to the fifth aspect.

In a specific implementation process, the processor may be a chip, the input circuit may be an input pin, the output circuit may be an output pin, and the processing circuit may be a transistor, a gate circuit, a flip-flop, various logic circuits, and the like. The input signal received by the input circuit may be received and input by, for example and without limitation, a receiver, the signal output by the output circuit may be output to and transmitted by a transmitter, for example and without limitation, and the input circuit and the output circuit may be the same circuit that functions as the input circuit and the output circuit, respectively, at different times. The embodiment of the present application does not limit the specific implementation manner of the processor and various circuits.

In a thirteenth aspect, an apparatus is provided that includes a processor and a memory. The processor is configured to read instructions stored in the memory, and may receive a signal via the receiver and transmit a signal via the transmitter to perform the method of any one of the possible implementations of the first aspect to the fifth aspect.

Optionally, the number of the processors is one or more, and the number of the memories is one or more.

Alternatively, the memory may be integral to the processor or provided separately from the processor.

In a specific implementation process, the memory may be a non-transient memory, such as a Read Only Memory (ROM), which may be integrated on the same chip as the processor, or may be separately disposed on different chips.

It will be appreciated that the associated data interaction process, for example, sending the indication information, may be a process of outputting the indication information from the processor, and receiving the capability information may be a process of receiving the input capability information from the processor. In particular, the data output by the processor may be output to a transmitter and the input data received by the processor may be from a receiver. The transmitter and receiver may be collectively referred to as a transceiver, among others.

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

In a fourteenth aspect, there is provided a computer program product comprising: a computer program (which may also be referred to as code, or instructions), which when executed, causes a computer to perform the method of any one of the possible implementations of the first to fifth aspects described above.

In a fifteenth aspect, a computer-readable medium is provided, which stores a computer program (which may also be referred to as code or instructions) that, when executed on a computer, causes the computer to perform the method of any one of the possible implementations of the first to fifth aspects.

In a sixteenth aspect, a communication system is provided, which includes at least two of the aforementioned first transceiver device, second transceiver device, and third transceiver device.

Drawings

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

fig. 2 is a schematic diagram of another architecture of a communication system to which embodiments of the present application are applied;

FIG. 3 is a schematic interaction diagram of a method of information transfer employing an embodiment of the present application;

fig. 4 is a schematic block diagram of a communication device provided by an embodiment of the present application;

fig. 5 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;

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

Detailed Description

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

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: long Term Evolution (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), fifth generation (5th generation, 5G) system or New Radio (NR), device to device (D2D) system, vehicle to other device (vehicle-to-X V2X) system, and Relay, Mesh, Access Backhaul Integration (IAB), V2X, UE cooperation, high frequency transmission, industrial scene, robot cooperation, internet of things, and so on. V2X may include vehicle-to-Internet (V2N), vehicle-to-vehicle (V2V), vehicle-to-infrastructure (V2I), vehicle-to-pedestrian (V2P), etc., Long Term Evolution (LTE-V) for vehicle-to-pedestrian (MTC), Internet of Things (Internet of Things, IoT), Long Term Evolution (LTE-M) for Machine-to-Machine communication, Machine-to-Machine (M2M), etc.

In the embodiments of the present application, a terminal device may also be referred to as a User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote terminal, a mobile device, a user terminal, a wireless communication device, a user agent, or a user equipment. The terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet (pad), a computer with a wireless transceiving function, a Virtual Reality (VR) terminal device, an Augmented Reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote medical (remote medical), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation security), a wireless terminal in smart city (smart city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a session initiation protocol (session initiation protocol, SIP) phone, a wireless local loop (wireless local area, PDA) station, a personal digital assistant (wldigital assistant), a handheld wireless communication device with a wireless transceiving function, and a handheld personal communication device with a wireless communication function, A computing device or other processing device connected to a wireless modem, an in-vehicle device, a wearable device, a terminal device in a 5G network, a terminal device in a Public Land Mobile Network (PLMN) for future evolution, or a terminal device in a non-public network, etc.

Wherein, wearable equipment also can be called as wearing formula smart machine, is the general term of using wearing formula technique to carry out intelligent design, developing the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

Furthermore, the terminal device may also be a terminal device in an Internet of things (IoT) system. The IoT is an important component of future information technology development, and is mainly technically characterized in that articles are connected with a network through a communication technology, so that an intelligent network with man-machine interconnection and object interconnection is realized.

The specific form of the terminal device is not limited in the present application.

The network device (or referred to as access network device) in the embodiment of the present application may be any device having a wireless transceiving function, and may provide a network access function for the terminal device. Network devices the devices include, but are not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (NB), Base Station Controller (BSC), Base Transceiver Station (BTS), home base station (e.g., home evolved Node B, or home Node B, HNB), baseband unit (BBU), wireless fidelity (WIFI) system, etc., and may also be a gbb or a transmission point (TRP or TP) in a 5G (e.g., NR) system, or one or a group of base stations in a 5G system may include multiple antennas, or may also be a panel of a network, or a panel of a NB, such as a baseband unit (BBU), or a Distributed Unit (DU), etc.

In some deployments, the gNB may include a Centralized Unit (CU) and a DU. The gNB may also include an Active Antenna Unit (AAU). The CU implements part of the function of the gNB, and the DU implements part of the function of the gNB, for example, the CU is responsible for processing non-real-time protocols and services, and implementing functions of a Radio Resource Control (RRC) layer and a packet data convergence layer (PDCP) layer. The DU is responsible for processing a physical layer protocol and a real-time service, and implements functions of a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a Physical (PHY) layer. The AAU implements part of the physical layer processing functions, radio frequency processing and active antenna related functions. Since the information of the RRC layer eventually becomes or is converted from the information of the PHY layer, the higher layer signaling, such as the RRC layer signaling, may also be considered to be transmitted by the DU or by the DU + AAU under this architecture. It is to be understood that the access network device may be a device comprising one or more of a CU node, a DU node, an AAU node.

It should be noted that a CU may be divided into an access network device and a Core Network (CN) device, which is not limited in this application. In the embodiments of the present application, CUs are divided into access network devices for ease of understanding and explanation.

The access network device serves the cell, and the terminal device communicates with the cell through transmission resources (e.g., frequency domain resources or spectrum resources) allocated by the access network device. The cell may belong to a macro base station (e.g., a macro eNB, a macro gNB, or the like), or may belong to a base station corresponding to a small cell (small cell). Here, the small cell may include: a metro cell (metro cell), a micro cell (microcell), a pico cell (pico cell), a femto cell (femto cell), etc. The small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-rate data transmission services.

In the embodiment of the application, the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a Central Processing Unit (CPU), a Memory Management Unit (MMU), and a memory (also referred to as a main memory). The operating system may be any one or more computer operating systems that implement business processing through processes (processes), such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer comprises applications such as a browser, an address list, word processing software, instant messaging software and the like. Furthermore, the embodiment of the present application does not particularly limit the specific structure of the execution main body of the method provided by the embodiment of the present application, as long as the communication can be performed according to the method provided by the embodiment of the present application by running the program recorded with the code of the method provided by the embodiment of the present application, for example, the execution main body of the method provided by the embodiment of the present application may be a terminal device or a network device, or a functional module capable of calling the program and executing the program in the terminal device or the network device.

In addition, various aspects or features of the present application may be implemented as a method, apparatus, or article of manufacture using standard programming and/or engineering techniques. The term "article of manufacture" as used herein is intended to encompass a computer program accessible from any computer-readable device, carrier, or media. For example, computer-readable media can include but are not limited to magnetic storage devices (e.g., hard disk, floppy disk, magnetic strips, etc.), optical disks (e.g., Compact Disk (CD), Digital Versatile Disk (DVD), etc.), smart cards, and flash memory devices (e.g., erasable programmable read-only memory (EPROM), card, stick, or key drive, etc.). In addition, various storage media described herein can represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" can include, without being limited to, wireless channels and various other media capable of storing, containing, and/or carrying instruction(s) and/or data.

Fig. 1 is a schematic structural diagram of a communication system to which an embodiment of the present application is applied. As shown in fig. 1, the communication system includes at least one transceiver device 1 (for example, the transceiver device 1 is a base station), and a plurality of transceiver devices 2 (for example, the transceiver devices 2 are User Equipments (UEs)). The plurality of UEs includes at least two UEs that can be used for D2D communication and at least one UE that can be used for cellular communication, where D2D communication refers to communication directly between two UEs and cellular communication refers to communication between a UE and a base station. The UEs communicating D2D may be referred to as D2D UEs or D2D terminals. The D2D UE may also have cellular communication capabilities and may be capable of cellular communication when there is a need for communication with a base station. A UE performing cellular communication has a function of performing cellular communication with a base station, and may also be referred to as a cellular UE or a cellular terminal. The cellular UE may also have D2D communication capability, and may also communicate with other D2D UEs in D2D when communication with other D2D UEs is required.

Fig. 2 is a schematic diagram of another architecture of a communication system 200 to which an embodiment of the present invention is applied, as shown in fig. 2, the communication system 200 includes 3 kinds of transceiver devices, for example, the 3 kinds of transceiver devices are respectively: a base station, an access point and a UE. The access point may be connected to and controlled by one or more base stations, and may communicate with the UE, configure resources for the UE, and the like. For example, the base station may be a macro base station, and the access point may be a small station or a relay node (e.g., an IAB node).

It should be understood that the above two architectures are only schematic diagrams, and do not limit the scope of the embodiments of the present application, and the communication system applied in the present application may also be other system architectures.

The communication system applied in the embodiment of the application at least comprises three transceiver devices. At least one transceiver device of the three transceiver devices can communicate with two other transceiver devices, for example, a first transceiver device can communicate with a second transceiver device and a third transceiver device; at least one of the three transceivers may be controlled and scheduled by another transceiver, for example, the second transceiver may control and schedule the first transceiver, and the first transceiver may also control and schedule the third transceiver.

The "transmission" in the embodiments of the present application can be flexibly understood, that is, the "transmission" can be understood as "transmission" or "reception".

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

It should be appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the various embodiments are not necessarily referring to the same embodiment throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Fig. 3 shows a schematic interaction diagram of a method 300 of information transfer according to an embodiment of the application. Exemplarily, the first transceiver device in fig. 3 may be the UE in fig. 1, and may also refer to an apparatus (e.g., a processor, a chip, or a system-on-chip, etc.) in the UE; alternatively, the first transceiver device in fig. 3 may also be the access point in fig. 2, and may also refer to a device (e.g., a processor, a chip, or a system-on-chip) in the access point. The second transceiver device in fig. 3 may be the base station in fig. 1 or the base station in fig. 2, and may also refer to an apparatus (e.g., a processor, a chip, or a system of chips, etc.) of the base station. Illustratively, the third transceiving equipment in fig. 3 may be the UE in fig. 1 or the UE in fig. 2, and may also refer to a device (e.g., a processor, a chip, or a chip system, etc.) in the UE. It is to be understood that, in fig. 3, part or all of the information interacted between the transceiver devices may be carried in an existing message, channel, signal, or signaling, or may be a newly defined message, channel, signal, or signaling, which is not limited in this respect. As shown in fig. 3, the method 300 includes:

s310, a second transceiver device sends a first message to a first transceiver device, where the first message includes first carrier indication information and/or second carrier indication information, the first carrier indication information is used to indicate a first carrier, and the second carrier indication information is used to indicate a second carrier. Correspondingly, the first transceiver device receives the first message from the second transceiver device.

The first carrier is a carrier for the first transceiver to send control information; the second carrier is a carrier for the second transceiving equipment to send data information and/or reference signals. It is to be understood that the second carrier may include one or more carriers, which is not particularly limited.

Optionally, the first message includes first carrier indication information, wherein the second carrier is predefined or selected by the second transceiver device itself; or the first message comprises second carrier indication information, wherein the first carrier is predefined or selected by the second transceiver device; alternatively, the first message includes the first carrier indication information and the second carrier indication information.

Alternatively, the first message may be a control message sent by the second transceiver device to the first transceiver device. The first message may be carried in physical layer control information, such as Downlink Control Information (DCI). For example, the DCI includes carrier indication fields, such as a first carrier indication field (i.e., first carrier indication information) and a second carrier indication field (i.e., second carrier indication information).

Optionally, the second transceiver device may configure the information of the plurality of carrier set groups for the first transceiver device through higher layer signaling. For example, the higher layer signaling is Radio Resource Control (RRC) signaling or medium access control element (MAC CE). Or, alternatively, the plurality of sets of carrier sets may be predefined. Wherein each of the plurality of carrier set groups includes one or more of the following carriers: the carrier wave used for transmitting the control information, the carrier wave used for transmitting the data information and the carrier wave used for transmitting the feedback control information. The index of a set of carrier sets may be included in the first message sent by the second transceiver device to the first transceiver device. Illustratively, the first message includes a first index, which is used to identify a carrier set group (or called carrier set), and the carrier set group includes one or more of the following carriers: a first carrier, a second carrier, and a third carrier. The first transceiver device may select a carrier set group corresponding to the first identifier from the multiple carrier sets according to the first index, and transmit control information, data information, and feedback information on the corresponding carrier.

Optionally, the first carrier may be predefined, or may also be configured by the second transceiver device through higher layer signaling, or may also be a carrier when the first transceiver device initially accesses. Here, the first message, which is transmitted by the second transceiving apparatus to the first transceiving apparatus, may include only the second carrier indication information. The second carrier indication information is used to indicate a carrier for transmitting data information, i.e., a second carrier.

Optionally, the first message may further include a first carrier switch instruction, where the first carrier switch instruction instructs the first transceiver device to switch from the first carrier to the second carrier when sending data information to the third transceiver device. Here, the first message may not include the second carrier indication information, but may notify the first transceiver device, through the first carrier switch indication, that the first transceiver device is switched from the first carrier to the second carrier when transmitting the data information. Here, the second carrier may be predefined or configured by the second transceiving equipment through higher layer signaling. For example, the first message is DCI, where the DCI includes a carrier switch indication field, and the carrier switch indication field is used to indicate whether to perform carrier switch when transmitting data information. For example, the carrier switch indication field includes a bit, where the bit indicates carrier switch when the bit is 1, and indicates not to perform carrier switch when the bit is 0; alternatively, when the bit is 0, carrier switching is instructed, and when the bit is 1, carrier switching is not instructed.

Optionally, the first transceiver device may send a Buffer Status Report (BSR) to the second transceiver device before receiving the first message from the second transceiver device. The BSR is configured to indicate a size of data volume to be sent to a third transceiver device in a buffer of the first transceiver device. The second transceiver device may allocate carriers and resources to the first transceiver device with reference to the BSR. Here, the carrier and the associated indication of the resource allocated by the second transceiver device to the first transceiver device may be indicated in the first message.

Optionally, the first transceiver device sends a request message to the second transceiver device before receiving the first message from the second transceiver device, where the request message is used to request a carrier for transmitting control information or data information. That is, the first transceiving device may actively request the second transceiving device for a carrier on which control information is transmitted and/or a carrier on which data information is transmitted. Correspondingly, the second transceiver device receives the request message. The second transceiver device may decide to allocate a carrier to the first transceiver device based on the request message. For example, after receiving the request message, the second transceiver device carries an indication about the carrier in the first message.

Optionally, the first message may include the first resource indication information and/or the second resource indication information. The first resource indication information is used for indicating resources occupied by the first transceiver device when the first transceiver device transmits the first control information. The second resource indication information is used for indicating the resources occupied by the first transceiver device when transmitting the data information. Optionally, the first message may further include third resource indication information. The third resource indication information is for indicating resources used by the first transceiving device when receiving feedback control information from the third transceiving device. Alternatively, the feedback control information may be feedback information of the third transceiving device for data information transmitted on the second carrier. The feedback control information may include HARQ feedback information or a Channel State Information (CSI) measurement result. The HARQ feedback information includes HARQ ACK/NACK.

S320, the first transceiver device sends first control information to the third transceiver device on the first carrier, where the first control information is used to indicate the second carrier. Correspondingly, the third transceiver device receives the first control information from the first transceiver device on the first carrier.

Optionally, the first control information may be control information carried in a physical layer. For example, the first control information is side chain control information (SCI).

The first control information is used for indicating a carrier used for sending the data information, namely a second carrier, to the third transceiver device. The first control information is used to indicate that the second carrier includes the following situations: the first control information is used to directly (or explicitly) indicate the second carrier, or the first control information is used to indirectly (or implicitly) indicate the second carrier, for example, indicate the second carrier by means of a carrier switch indication.

Optionally, the first control information may include a carrier indication field for indicating a carrier (i.e., a second carrier) for the third transceiver device to receive the data information.

Optionally, assuming that the first transceiver device further receives the feedback control information from the third transceiver device by using the first carrier, that is, the carrier on which the first transceiver device sends the first control information is the same as the carrier on which the feedback control information of the third transceiver device is received, the first control information may further include a carrier indication field for indicating the carrier (i.e., the first carrier) on which the third transceiver device sends the feedback control information.

Optionally, a carrier (e.g., a third carrier) used for the third transceiver device to transmit the feedback control information may not be indicated in the first control information. The third transceiver device may send the feedback control information using the carrier at the time of initial access, or a predefined carrier, or a carrier configured by higher layer signaling.

Optionally, the second transceiver device may configure information of the multiple carrier set groups for the first transceiver device and the third transceiver device through high layer signaling. For example, the higher layer signaling is radio resource control RRC signaling or medium access control element MAC CE. Alternatively, the plurality of sets of carrier sets may be predefined. Alternatively, the third transceiving device may receive information from the plurality of sets of carrier waves of the first transceiving device. If the first message includes a first index, where the first index is used to indicate a carrier set group, correspondingly, the first control information sent by the first transceiver device to the third transceiver device is used to indicate the second carrier, including: the first control information includes a second index indicating a second carrier in the carrier set group, or the second index indicates a second carrier and a third carrier in the carrier set group. The third transceiver device can obtain the carrier (i.e. the second carrier) for receiving the data information through the second index; or, the third transceiver device may learn, through the second index, carriers (i.e., the second carrier and the third carrier) for receiving the data information and sending the feedback control information.

It can be understood that, in this embodiment of the application, the third transceiver device may send the feedback control information to the first transceiver device, and may also send the feedback control information to the second transceiver device, which is not limited in this embodiment.

Optionally, the first control information includes a second carrier switch instruction, where the second carrier switch instruction is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data. Here, the first control information may not include the second carrier indication information, but the third transceiver device may be informed of switching from the first carrier to the second carrier when receiving the data information through the second carrier switching indication. For example, the first control information is SCI, and the SCI includes a carrier switch indication field for indicating whether to perform carrier switch when the third transceiver device receives data. For example, the carrier switch indication field includes a bit, where the bit indicates carrier switch when the bit is 1, and indicates not to perform carrier switch when the bit is 0; alternatively, when the bit is 0, carrier switching is instructed, and when the bit is 1, carrier switching is not instructed. The third transceiver device may decide whether to switch from the first carrier to the second carrier based on the value of the bit.

Optionally, the first control information may further include fourth resource indication information, where the fourth resource indication information is used to indicate a resource occupied by the data information. The third transceiving equipment may receive the data information using the resource indicated by the fourth resource indication information.

Optionally, the first control information may further include fifth resource indication information, where the fifth resource indication information is used to indicate a resource occupied by the feedback control information. The third transceiving equipment may transmit the feedback control information using the resource indicated by the fifth resource indication information.

Optionally, the content (for example, a carrier indication field, a carrier switch indication, fourth resource indication information, fifth resource indication information, and the like) included in the first control information may be determined by the first transceiver device according to the corresponding content included in the received first message. For example, the first message includes the second carrier indication information (the second carrier indication information is used to indicate the second carrier), and the first transceiver device may include a carrier indication field for indicating the second carrier in the first control information according to the second carrier indication information included in the first message.

S330, a first transceiver device sends data information to a third transceiver device on a second carrier, where the first carrier is different from the second carrier, and a side chain is used between the third transceiver device and the first transceiver device. Correspondingly, the third transceiver device receives the data information from the first transceiver device on the second carrier.

For example, assuming that the first message includes first carrier indication information and second carrier indication information, the first transceiver device sends the first control information on the first carrier according to the first carrier indication information, and sends the data information on the second carrier according to the second carrier indication information.

In this embodiment, the first transceiver device transmits the first control information on a first carrier and transmits the data information on a second carrier, where the first carrier is different from the second carrier. That is, the first transceiving device may transmit the first control information and the data information on different carriers. Compared with the prior art that control information and data information are sent on the same carrier, the method and the device are limited by the receiving and sending switching period, and the embodiment of the application can meet the low delay requirement while ensuring large broadband transmission by scheduling different carrier frequency spectrums for transmission.

Optionally, the first transceiver device may also transmit the reference signal on the second carrier, and receive the feedback control information from the third transceiver device on the first carrier. That is, the first transceiving equipment may multiplex the first carrier to receive the feedback control information, i.e., the carrier used for transmitting the first control information is the same as the carrier used for transmitting the feedback control information.

Optionally, the first message may further include third carrier indication information, where the third carrier indication information is used to indicate a third carrier. For example, the DCI includes a third carrier indication field (i.e., third carrier indication information). Wherein the first control information is further used to indicate a third carrier. Optionally, the method 300 further comprises: s340, the third transceiving device sends the feedback control information to the first transceiving device on the third carrier. Correspondingly, the first transceiver device receives feedback control information from the third transceiver device on the third carrier. That is, the third carrier transmission feedback control information may be introduced here.

For example, assuming that the first message includes first carrier indication information, second carrier indication information, and third carrier indication information, the first transceiver device transmits first control information to the third transceiver device on the first carrier according to the carrier indication information included in the first message, transmits data information and/or a reference signal to the third transceiver device on the second carrier, and receives feedback control information from the third transceiver device on the third carrier.

In an embodiment of the application, the second transceiver device may schedule the multicarrier transmission between the first transceiver device and the third transceiver device through the first message. For a scenario that services of a first transceiver and a third transceiver are asymmetric in two transmission directions, for example, the first transceiver needs to send large-flow data to the third transceiver, the third transceiver only needs to send small-flow information such as feedback control information to the first transceiver, and the second transceiver schedules transmission in the two directions by using different carriers through a first message, for example, a node with larger scheduling transmission traffic uses a carrier with high frequency and large bandwidth, and time resources do not need to be differentially allocated in a two-way transmission direction on one carrier, so that transmission delay is prevented from being severely limited by a cycle of transceiver switching, and a low-delay requirement is met while large-bandwidth transmission is ensured.

It was described above that the first transceiving device may transmit data information on the second carrier to the third transceiving device, in fact, the first transceiving device may also transmit control information for scheduling the data information of the present carrier on the second carrier. Optionally, as an embodiment, the method 300 further includes: s350, the first transceiver device sends second control information to the third transceiver device on the second carrier, where the second control information is used to schedule data information. Here, the second control information is used to schedule data information transmitted on the second carrier. That is, the first transceiving device may transmit the second control information and the data information to the third transceiving device on the second carrier. Correspondingly, the third transceiver device receives the second control information and the data information from the first transceiver device on the second carrier.

Optionally, sixth resource indication information may be included in the second control information. The sixth resource indication information is used for indicating the resources occupied by the data information.

Alternatively, the second control information may be carried in physical layer control information. For example, the second control information is SCI.

Alternatively, the second control information may include seventh resource indication information. The seventh resource indication information is used to indicate resources occupied by the third transceiver device when sending the feedback control information. Alternatively, the feedback control information may be feedback information for data information transmitted on the second carrier.

Of course, for the case where the first transceiving apparatus transmits the second control information and the data information to the third transceiving apparatus on the second carrier, the above description on the first message and the description on the first control information still apply as long as the description on the second control information is added. For the description of the first message and the description of the first control information, reference may be made to the foregoing. For ease of understanding, the following description will be made by way of example.

Specifically, for example, the first message includes first carrier indication information, which is used to indicate a carrier, that is, a first carrier, in which the first transceiver device sends the first control information to the third transceiver device; the second carrier indication information included in the first message is used to indicate a carrier, i.e., a second carrier, on which the first transceiver device sends the second control information and the data information to the third transceiver device. Of course, the first message may further include the third carrier indication information, where the third carrier indication information is used to indicate that the first transceiver device receives the carrier of the feedback control information from the third transceiver device.

Specifically, for example, the first carrier switching instruction included in the first message is used to instruct the first transceiver device to switch from the first carrier to the second carrier when sending the second control information and the data information to the third transceiver device. Here, the second carrier may be predefined or configured by the second transceiving equipment through higher layer signaling.

Specifically, for example, the second resource indication information included in the first message is used to indicate a resource occupied by the first transceiver device when transmitting the second control information and the data information to the third transceiver device.

Specifically, for example, the first control information is used to instruct the first transceiver device to send the second control information and the carrier of the data information to the third transceiver device, that is, the second carrier.

Specifically, for example, the first control information includes a second carrier switch instruction, which is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving the second control information and the data information.

In this embodiment of the present application, by transmitting the second control information and the data information on the second carrier, the third transceiver device may switch to the second carrier to continuously receive the second control information and the data scheduled by the second control information after receiving the first control message for carrier indication on the first carrier. Therefore, under the condition that a plurality of data are required to be continuously transmitted, the scheduling information does not need to be received on the first carrier, and then the second carrier is switched to receive the data information, the scheduling information and the data information are received on one carrier, and frequent carrier switching is avoided.

In the above description, the third transceiving device is informed of the indication of the respective carrier by the first transceiving device. Optionally, as an embodiment, the third transceiver device may also obtain information about the carrier directly from the second transceiver device. That is, the second transceiver device may not only send the first message to the first transceiver device to schedule the multicarrier transmission between the first transceiver device and the third transceiver device, but may also directly send the first message to the third transceiver device to schedule the multicarrier transmission between the first transceiver device and the third transceiver device.

Optionally, the method 300 further comprises: and S360, the second transceiver sends the first message to a third transceiver. Correspondingly, the third transceiver device receives the first message from the second transceiver device. The description of the first message may refer to the foregoing description, and is not repeated herein for brevity. That is, the second transceiver device may directly issue the information about the carrier for the first transceiver device, or may directly issue the information about the carrier for the third transceiver device. No matter the first transceiver device or the third transceiver device, the information about the carrier wave sent by the second transceiver device can be transmitted on the corresponding carrier wave. For example, the first transceiver device may transmit the first control information on the first carrier, transmit the data information on the second carrier, and receive the feedback control information on the third carrier. For another example, the third transceiver device receives the first control information on the first carrier, receives the data information on the second carrier, and transmits the feedback control information on the third carrier.

It should be understood that the first message is only described as an example, and the embodiment of the present application is not limited thereto. In fact, the second transceiver device may schedule the first transceiver device and the third transceiver device to transmit on multiple carriers to the first transceiver device through one control message; the first transceiver device may also be scheduled for transmission with the third transceiver device on a plurality of carriers by another control message to the third transceiver device.

Optionally, the third transceiver device may send a retransmission request message to the second transceiver device before receiving the first message sent by the second transceiver device. The retransmission request message is used for requesting retransmission of the first transceiver device so that the second transceiver device can allocate the carrier and resource used by retransmission. The second transceiving equipment may indicate the carrier and resources used for retransmission by the first message.

For example, the first message sent by the second transceiver device to the third transceiver device may include the second carrier indication information and the third carrier indication information. The second carrier indication information is used to indicate a carrier, i.e. a second carrier, on which the third transceiver device receives the data information and/or the reference signal from the first transceiver device. The third carrier indication information is used for indicating the third transceiver device to send the carrier of the feedback control information to the first transceiver device.

For example, a first message sent by a second transceiver device to a third transceiver device may include a third carrier switch instruction, where the third carrier switch instruction is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data; the third transceiver device receiving data information from the first transceiver device on the second carrier, including: and the third transceiver receives the data information from the first transceiver on the second carrier according to the third carrier indication information. That is, the third transceiver device may acquire the second carrier through the first message sent by the second transceiver device, and receive the data information from the first transceiver device on the second carrier.

For example, a first message sent by the second transceiver device to the third transceiver device may include a first index, where the first index is used to indicate a carrier set group, and the carrier set group includes the first carrier, the second carrier, and a third carrier; the first control information is used for indicating the second carrier, and includes: the first control information includes a second index indicating the second carrier in the carrier set group, or the second index indicating the second carrier and the third carrier in the carrier set group. Here, the third transceiver device obtains the first index through the first message sent by the second transceiver device, and obtains the carrier set group identified by the first index; then, according to a second index in the first control information, a second carrier, or the second carrier and a third carrier are obtained in the carrier set group.

In the foregoing embodiments, optionally, the first control information or the first message may further include semi-persistent scheduling (SPS) configuration information, so as to implement semi-persistent scheduling transmission between the first transceiver device and the third transceiver device. It is understood that the SPS configuration information may be sent via other messages, which is not limited.

Optionally, the first message includes semi-persistent scheduling, SPS, configuration information, the SPS configuration information including transmission period indication information; wherein, S320 includes: the first transceiver device sends first control information to a third transceiver device on the first carrier at intervals of the transmission cycle based on the transmission cycle indicated by the transmission cycle indication information, wherein the first control information comprises the transmission cycle indication information; wherein, S330 includes: and the first transceiver device sends data information to the third transceiver device on the second carrier at intervals of the transmission period based on the transmission period indicated by the transmission period indication information.

The transmission period indicated by the transmission period indication information includes a time interval of semi-static transmission. That is, the first transceiving device transmits the first control information to the third transceiving device on the first carrier and the data information to the third transceiving device on the second carrier every the transmission period.

Optionally, the SPS configuration information may further include other semi-persistent scheduling parameters, which is not limited thereto.

Optionally, the first message may further include an indication field for indicating SPS activation or release.

Taking the first message as DCI, the DCI may include SPS configuration information, and carrier information and/or resource information indicated (or allocated) by the second transceiver device, and after receiving the DCI including the SPS configuration information, the first transceiver device may periodically and repeatedly use the carrier information and/or resource information indicated in the DCI to transmit control information and data information, or receive feedback control information.

For the case where the DCI includes SPS configuration information, one possible implementation is: a Cyclic Redundancy Check (CRC) of the DCI is scrambled using a network temporary identity (RNTI), such as an X-RNTI. The X-RNTI has an identifier of semi-persistent scheduling and can be included in SPS configuration information. The X-RNTI may be configured by the second transceiver device to the first transceiver device via higher layer signaling (e.g., RRC signaling). For example, the X-RNTI may be a semi-persistent scheduling cell-radio network temporary identifier (SPS-C-RNTI), or a sidelink semi-persistent radio network identifier (SL-SPS-V-RNTI), such as a sidelink semi-persistent scheduling vehicle radio network identifier (SL-SPS-V-RNTI), or a newly defined RNTI. The DCI may include a field indicating a configuration index of the SPS, where the SPS configuration information and the configuration index of the SPS may be configured by the second transceiver device to the first transceiver device through higher layer signaling. Optionally, an indication field for indicating SPS activation or release may also be included in the DCI. In this way, the first transceiver device can know whether the DCI is used for activation of SPS or release of SPS after receiving the DCI.

For example, the first transceiver device may consider the DCI scrambled by the X-RNTI to be the activation signaling for the semi-persistent scheduling transmission, or detect that the SPS activation/release indication field in the DCI indicates SPS activation after receiving the DCI scrambled by the X-RNTI, and the first transceiver device considers the DCI to be the activation signaling for the semi-persistent scheduling transmission. Then, the first transceiver device periodically performs information transmission with the third transceiver device on the carrier and/or resource allocated or indicated by the DCI according to the SPS configuration information indicated in the DCI.

For the case where the DCI includes SPS configuration information, another possible implementation is: an indication field for explicitly indicating the SPS identity is included in the DCI. The first transceiver device may identify whether it is semi-persistent scheduling based on the indication field for explicitly indicating SPS identity after receiving the DCI. For example, the indication field for explicitly indicating the SPS identifier in the DCI includes a bit, where the bit takes 0 to indicate dynamic scheduling or non-semi-static scheduling, and the bit takes 1 to indicate semi-static scheduling. Optionally, an indication field for indicating a transmission period may be further included in the DCI. The first transceiving equipment may perform information transmission with the third transceiving equipment based on the transmission period indicated by the indication field for indicating the transmission period.

For example, assuming that the DCI includes carrier indication information, resource indication information, an indication field (bit value is 1) for explicit SPS identification, and an indication field for indicating a transmission period, the first transceiver device transmits information on the carrier and the resource indicated in the DCI every other transmission period according to the transmission period indicated in the DCI.

Optionally, the first control information may include semi-persistent scheduling, SPS, configuration information including transmission period indication information, the SPS configuration information being used to instruct the third transceiver device to perform one or more of the following operations based on the transmission period indication information: and receiving the data information and/or the second control information on the second carrier at intervals of the transmission period based on the transmission period indicated by the transmission period indication information, and sending feedback control information on the third carrier. That is to say, the first control information sent by the first transceiver device to the third transceiver device may also include SPS configuration information, so as to facilitate semi-persistent scheduling of transmission by the third transceiver device. It is to be understood that, after receiving the first control information including the SPS configuration information, the third transceiver device may periodically and repeatedly use the carrier information and/or the resource information indicated in the first control information according to the carrier information (e.g., the second carrier) and/or the resource information indicated in the first control information to transmit the data information or the feedback control information.

Taking the first control information as an example of an SCI, the SCI may include SPS configuration information, and carrier information and/or resource information indicated (or allocated) by the first transceiver device, and after receiving the SCI including the SPS configuration information, the third transceiver device may periodically repeat sending control information and data information using the carrier information and/or resource information indicated in the SCI, or receiving feedback control information.

For the case where the SCI includes SPS configuration information, one possible implementation is: the cyclic redundancy check, CRC, of the SCI is scrambled using the X-RNTI. The X-RNTI has an identifier of semi-persistent scheduling and can be included in SPS configuration information. The X-RNTI may be configured by the second transceiver device to the third transceiver device via higher layer signaling (e.g., RRC signaling). For example, the X-RNTI may be a semi-static cell radio network identity (SPS-C-RNTI) or a SL-SPS-V-RNTI or a newly defined RNTI. The SCI may include a configuration index indicating SPS, wherein the SPS configuration information and the configuration index of SPS may be configured by the second transceiver device to the third transceiver device through higher layer signaling. Optionally, an indication field for indicating SPS activation or release may also be included in the SCI. Thus, the third transceiver device, upon receiving the SCI, can learn whether the SCI is for activation of SPS or release of SPS.

For example, the third transceiver device may receive the SCI scrambled with the X-RNTI and may consider the SCI as the activation signaling for the semi-persistent scheduling transmission, or after receiving the SCI scrambled with the X-RNTI, detect that the SPS activation/release indication field in the SCI indicates SPS activation, and the third transceiver device considers the SCI as the activation signaling for the semi-persistent scheduling transmission. Then, the third transceiver device periodically performs information transmission with the first transceiver device on the carriers and/or resources allocated or indicated by the SCI according to the SPS configuration information indicated in the SCI.

For the case where the SCI includes SPS configuration information, another possible implementation is: an indication field for explicitly indicating the SPS identity is included in the SCI. The third transceiver device, upon receiving the SCI, may identify whether it is semi-persistent scheduling based on the indication field for explicitly indicating SPS identity. For example, the indication field in the SCI for explicitly indicating the SPS identifier includes a bit, where 0 is used to indicate dynamic scheduling or non-semi-persistent scheduling, and 1 is used to indicate semi-persistent scheduling. Optionally, an indication field for indicating the transmission period may be further included in the SCI. The third transceiving equipment may perform information transmission with the first transceiving equipment based on the transmission period indicated by the indication field for indicating the transmission period.

For example, assuming that the SCI includes carrier indication information, resource indication information, an indication field (bit value is 1) for explicit SPS identification, and an indication field for indicating a transmission period, the third transceiver device performs information transmission on the carrier and the resource indicated in the SCI every other transmission period according to the transmission period indicated in the SCI.

In the embodiment of the application, by introducing the SPS configuration information, it may be achieved that a control message (such as the first message or the first control information) is valid in a semi-persistent scheduling period until the semi-persistent scheduling is released, so that the control message does not need to be transmitted before each data transmission, which is beneficial to saving resource overhead.

Optionally, the method 300 further comprises: the third transceiver device obtains the configuration information of Discontinuous Reception (DRX); performing discontinuous reception based on the configuration information of the DRX.

Here, the third transceiving apparatus may receive configuration information of DXR from the first transceiving apparatus or the second transceiving apparatus. The third transceiving equipment performs discontinuous reception based on the configuration information of the DRX. For example, the third transceiving device receives the first control information from the first transceiving device based on the configuration information of DRX, and receives the data information from the first transceiving device on the carrier indicated by the first control information. For another example, the third transceiver device sends feedback control information to the first transceiver device based on the configuration information of DRX.

Optionally, the configuration information of DRX includes one or more of the following information: receiving carrier indication, receiving resource indication, discontinuous receiving period, long discontinuous receiving period, short discontinuous receiving period, duration, first timer, second timer, connection indication, paging indication, etc. Wherein the receiving carrier indication indicates a carrier used for indicating the third transceiving equipment to use for receiving information; receiving a resource indication for indicating a resource for a third transceiving equipment to receive information; the discontinuous receiving period, the long discontinuous receiving period and the short discontinuous receiving period are periodically repeated after the starting duration is appointed; the duration is used to indicate the duration of DRX (i.e., listening for control messages and receiving data) by the third transceiver device; the first timer is used for indicating the third transceiver to trigger the time for entering the DRX; the second timer is used for indicating the time for releasing the DRX of the third transceiver equipment; the connection indication is used for indicating whether the third transceiver device is connected with the first transceiver device or not; the paging indicator indicates paging information.

And the third transceiver equipment executes discontinuous reception based on the configuration information of the DRX. For the third transceiver, the third transceiver can enter the sleep state within the non-duration time, and does not monitor the control information sent by the first transceiver, so that the power consumption of the third transceiver is effectively reduced, and the service time of the battery can be prolonged.

In the above description, the carrier or resource used for transmission between the first transceiver device and the third transceiver device may be allocated or indicated by the second transceiver device. In fact, the first transceiver device may also autonomously select a carrier, as will be described below.

The present application provides another method of information transmission: a first transceiver device acquires carrier set configuration information, wherein the carrier set configuration information indicates a plurality of carriers; the method comprises the steps that first transceiver equipment selects a first carrier and/or a second carrier from a plurality of carriers according to preset conditions; the method comprises the steps that first receiving and sending equipment sends first control information to third receiving and sending equipment on a first carrier, wherein the first control information is used for indicating a second carrier; and the first transceiver device sends data information to the third transceiver device on the second carrier, wherein the first carrier is different from the second carrier.

Correspondingly, the third transceiver device receives first control information from the first transceiver device on the first carrier, where the first control information is used to indicate a second carrier; the third transceiving device receives data information from the first transceiving device on the second carrier.

Optionally, the carrier set configuration information is only all carriers available when the first transceiver device communicates with the third transceiver device. For example, the carrier set configuration information may be used for the first transceiver device to select a carrier for transmitting the control information and the data information, and may also be used for the first transceiver device to select a carrier for receiving the feedback control information. For another example, the carrier set configuration information is used for the first transceiver device to select only the carrier for transmitting the data information, wherein the carrier for the first transceiver device to receive the feedback control information or the carrier for transmitting the control information uses a pre-configured carrier or a predefined carrier. For another example, the carrier set configuration information is used for the first transceiver device to select a carrier for transmitting the control information and the data information, wherein the first transceiver device receives the feedback control information using a pre-configured carrier or a pre-defined carrier. For another example, the carrier configuration information may also include transmit carrier set configuration information and receive carrier set configuration information, respectively, where the transmit carrier set configuration information is used for the first transceiver device to select a carrier for transmission from, and the receive carrier set configuration information is used for the first transceiver device to select a carrier for reception from.

Optionally, the carrier set configuration information may be predefined, or may be configured by the second transceiver device through RRC signaling or MAC CE, which is not limited herein.

Optionally, the preset condition may include one or more of the following conditions: the traffic of the first transceiver device meets the preset condition, and the channel quality indicated value meets the preset condition. The traffic of the first transceiver device refers to the size of the traffic of the data transmitted by the first transceiver device. The channel quality indicator value is used to indicate the channel quality between the first transceiving device and the third transceiving device. That is, the first transceiver device may select a carrier that meets the condition according to information such as traffic volume and/or channel quality of the first transceiver device.

Optionally, the fact that the traffic of the first transceiver device meets the preset condition means that: the traffic volume sent by the first transceiver device satisfies a first mapping relationship, where the first mapping relationship includes a correspondence between the traffic volume and the carrier. That is, the first mapping relationship may include a correspondence relationship between each carrier and a corresponding traffic threshold. For example, assuming that the carrier set configuration information indicates a first carrier and a second carrier, when the traffic volume sent by the first transceiver device is smaller than a first traffic volume threshold, the first transceiver device selects the first carrier to send data information; and when the traffic volume sent by the first transceiver is greater than or equal to the first traffic volume threshold, the first transceiver selects the second carrier to send the data information and selects the first carrier to receive the feedback control information.

Optionally, the that the channel quality indication value satisfies the preset condition is: the channel quality indicator value satisfies a second mapping relationship including a correspondence between the carrier and the channel quality value. That is, the second mapping relationship includes the correspondence relationship between each carrier and the corresponding channel quality value. Alternatively, the channel quality value may be represented by a Channel Quality Indication (CQI) value or a CQI section. The second mapping relationship is described below with an example in table 1. Table 1 describes an example of a correspondence relationship between a CQI section (which can be identified by a CQI index) and a carrier index.

TABLE 1

CQI index	Carrier index (Carrier index)
		(12,15]	Carrier 0
(9,12]	Carrier 1
		(6,9]	Carrier 2
(3,6]	Carrier 3
		…	…

For example, if the CQI values of the first transceiver device and the third transceiver device are located in the interval (12, 15), the first transceiver device selects carrier 0 to transmit data information by looking up table 1.

It is understood that table 1 is described by way of example only, and is not limited to the embodiments of the present application, and in fact, the CQI index and/or the carrier index in table 1 may have other possibilities, and is not limited thereto.

It will be appreciated that the first transceiver device may select one or more carriers to transmit data information. The number of carriers selected is not limited herein.

Optionally, the basis for the first transceiver device to select the carrier, that is, the preset condition, for example, the first mapping relationship, the second mapping relationship, and the threshold information (traffic threshold or channel quality interval) may be predefined, or may be configured by the second transceiver device through RRC signaling or MAC CE, which is not limited specifically.

Optionally, the first carrier selected by the first transceiver device may also be used to receive feedback control information from the third transceiver device, which is not particularly limited. Alternatively, the first transceiver device may also select a third carrier, and receive the feedback control information from the third transceiver device on the third carrier. Correspondingly, the third transceiver device sends the feedback control information on the third carrier.

Optionally, the first transceiver device may send second control information to the third transceiver device on the second carrier, where the second control information is used for scheduling data information. For a specific description of "the first transceiver device sends the second control information to the third transceiver device on the second carrier", reference may be made to the description of the foregoing embodiments, and for brevity, no further description is provided here.

It can be understood that, in this embodiment of the application, optionally, the first control information may also include a carrier switch indication, where the carrier switch indication is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data. For a specific description that the first control information includes a carrier switch indication, reference may be made to the description of the foregoing embodiments, and for brevity, no detailed description is provided here.

It can be understood that, in this embodiment of the present application, optionally, the first control information is used to indicate the second carrier, and includes: the first control information includes a second index indicating the second carrier of the multiple carriers, or the second index indicates the second carrier and a third carrier of the multiple carriers. For specific description of the first control information including the second index, reference may be made to the description of the foregoing embodiments, and for brevity, no detailed description is provided here.

In the embodiment of the application, the first transceiver device may autonomously select a carrier for communicating with the third transceiver device to implement multi-carrier transmission without scheduling the carrier through the second transceiver device. Therefore, the first transceiver device may select different carriers to be used for transmission in two directions, for example, a node with a relatively large scheduling transmission traffic volume uses a high-frequency carrier with a large bandwidth, and does not need to differentially allocate time resources in a two-way transmission direction on one carrier, so that the transmission delay is prevented from being seriously limited by a cycle of transceiver switching, and the low-delay requirement can be met while large-bandwidth transmission is ensured.

It should be understood that the various aspects of the embodiments of the present application can be reasonably combined and explained, and the explanation or explanation of the various terms appearing in the embodiments can be mutually referred to or explained in the various embodiments, which is not limited.

It should also be understood that, in the various embodiments of the present application, the size of the serial number of each process described above does not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic of each process. The various numbers or serial numbers involved in the above processes are merely used for convenience of description and should not be construed as limiting the implementation processes of the embodiments of the present application in any way.

Corresponding to the method provided by the above method embodiment, the embodiment of the present application further provides a corresponding apparatus, where the apparatus includes a module for executing the above embodiment. The module may be software, hardware, or a combination of software and hardware. It is understood that the technical features described in the method embodiments are equally applicable to the following apparatus embodiments.

Fig. 4 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown in fig. 4, the communication device 1000 may include a transceiving unit 1100 and a processing unit 1200.

In a possible design, the communication apparatus 1000 may correspond to the first transceiver device in the above method embodiment, and may be a terminal device or a chip configured in the terminal device, for example.

Specifically, the communication apparatus 1000 may correspond to the first transceiver device in the method 300 according to the embodiment of the present application, and the communication apparatus 1000 may include a unit for performing the method performed by the first transceiver device in the method 300 in fig. 3. Also, the units in the communication apparatus 1000 and the other operations or functions described above are respectively for implementing the corresponding flow of the first transceiver device in the method 300 in fig. 3.

In one implementation, the transceiving unit 1100 may be configured to: receiving a first message from a second transceiver device, where the first message includes first carrier indication information and/or second carrier indication information, the first carrier indication information is used to indicate a first carrier, and the second carrier indication information is used to indicate a second carrier; sending first control information to a third transceiver device on the first carrier, wherein the first control information is used for indicating the second carrier; and sending data information to the third transceiver device on the second carrier, where the first carrier is different from the second carrier, and the third transceiver device and the first transceiver device perform side-chain transmission therebetween.

Optionally, the transceiver unit 1100 is further configured to send second control information to the third transceiver device on the second carrier, where the second control information is used to schedule the data information.

Optionally, the first message further includes third carrier indication information, where the third carrier indication information is used to indicate a third carrier, and the transceiver unit 1100 is further configured to receive feedback control information from the third transceiver device on the third carrier, where the first control information is further used to indicate the third carrier.

Optionally, the transceiver unit 1100 is further configured to receive feedback control information from the third transceiver device on the first carrier.

Optionally, the first message further includes a first index, the first index being used to identify a carrier set group, the carrier set group including one or more of: the first carrier, the second carrier, and a third carrier;

the first control information is used for indicating the second carrier, and includes: the first control information includes a second index indicating the second carrier in the carrier set group, or the second index indicating the second carrier and the third carrier in the carrier set group.

Optionally, the first message further includes a first carrier switch instruction, where the first carrier switch instruction instructs the first transceiver device to switch from the first carrier to the second carrier when sending data information to the third transceiver device;

the first control information is used for indicating a second carrier, and includes: the first control information includes a second carrier switch instruction, where the second carrier switch instruction is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data information.

Optionally, the transceiver unit 1100 is further configured to send a request message to the second transceiver device, where the request message is used to request a carrier for transmitting control information or data information.

Optionally, the first message includes semi-persistent scheduling, SPS, configuration information, the SPS configuration information including transmission period indication information; the transceiver unit 1100 is configured to send first control information to a third transceiver device on the first carrier, and includes: based on a transmission period indicated by the transmission period indication information, sending first control information to a third transceiver device on the first carrier at intervals of the transmission period, wherein the first control information comprises the transmission period indication information; wherein the transceiver unit 1100 is configured to transmit data information to the third transceiver device on the second carrier, and includes: and sending data information to the third transceiving equipment on the second carrier at intervals of the transmission period based on the transmission period indicated by the transmission period indication information.

Optionally, the second carrier comprises one or more carriers.

Alternatively, in another implementation, the transceiving unit 1100 and the processing unit 1200 may be respectively configured to:

the transceiving unit 1100 is configured to: acquiring carrier set configuration information, wherein the carrier set configuration information indicates a plurality of carriers.

The processing unit 1200 is configured to select a first carrier and/or a second carrier among the multiple carriers according to a preset condition.

The transceiver unit 1100 is further configured to send first control information to a third transceiver device on the first carrier, where the first control information is used to indicate the second carrier; and sending data information to the third transceiver device on the second carrier, wherein the first carrier is different from the second carrier.

Optionally, the processing unit 1200 is further configured to select a third carrier from the multiple carriers according to the preset condition; the transceiver unit is further configured to receive feedback control information from the third transceiver device on the third carrier, where the first control information is further configured to indicate the third carrier.

It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

It is further understood that when the communication apparatus 1000 is a terminal device, the transceiver unit 1100 in the communication apparatus 1000 may correspond to the transceiver 2020 in the terminal device 2000 shown in fig. 5, and the processing unit 1200 in the communication apparatus 1000 may correspond to the processor 2010 in the terminal device 2000 shown in fig. 5.

It should also be understood that when the communication device 1000 is a chip configured in a terminal device, the transceiver unit 1200 in the communication device 1000 may be an input/output interface.

Optionally, the communication device 1000 further includes a storage unit, and the storage unit may be configured to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations. The storage unit may be implemented by at least one memory, which may for example correspond to the memory 2030 in the terminal device 2000 in fig. 5.

In another possible design, the communication apparatus 1000 may correspond to the third transceiver device in the above method embodiment, and may be a terminal device or a chip configured in the terminal device, for example.

Specifically, the communication apparatus 1000 may correspond to the third transceiver device in the method 300 according to the embodiment of the present application, and the communication apparatus 1000 may include a unit for performing the method performed by the third transceiver device in the method 300 in fig. 3. Also, the units in the communication apparatus 1000 and the other operations or functions described above are respectively for implementing the corresponding flow of the third transceiving equipment in the method 300 in fig. 3.

In one implementation, the transceiving unit 1100 may be configured to: receiving first control information sent by first transceiver equipment on a first carrier, wherein the first control information is used for indicating a second carrier; receiving data information from a first transceiver device on the second carrier, the first carrier being different from the second carrier, wherein the third transceiver device and the first transceiver device are in side-chain transmission; the first carrier is determined by the first transceiver device by receiving a first message from a second transceiver device, where the first message includes first carrier indication information, and the first carrier indication information is used to indicate a first carrier; and/or the second carrier is determined by the first transceiver device by receiving a first message from the second transceiver device, where the first message includes second carrier indication information, and the second carrier indication information is used to indicate the second carrier.

Optionally, the transceiver unit 1100 is further configured to receive second control information from the first transceiver device on the second carrier, where the second control information is used to schedule the data information.

Optionally, the transceiver unit 1100 is further configured to send feedback control information to the first transceiver device or the second transceiver device on a third carrier, where the first control information is further used to indicate the third carrier.

Optionally, the transceiver unit 1100 is further configured to send feedback control information to the first transceiver device or the second transceiver device on the first carrier.

Optionally, the first control information includes a second carrier switch instruction, where the second carrier switch instruction is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data; the transceiving unit 1100 is configured to receive data information from a first transceiving device on the second carrier, and includes: and receiving data information from the first transceiver equipment on the second carrier according to the second carrier switching indication.

Optionally, the transceiver unit 1100 is further configured to receive the first message from the second transceiver device.

Optionally, the first message includes a third carrier switch indication, where the third carrier switch indication is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data; the transceiving unit 1100 is configured to receive data information from a first transceiving device on the second carrier, and includes: and receiving data information from the first transceiver equipment on the second carrier according to the third carrier indication information.

Optionally, the first message further includes a first index, where the first index is used to indicate a carrier set group, and the carrier set group includes the first carrier, the second carrier, and a third carrier; the first control information is used for indicating the second carrier, and includes: the first control information includes a second index indicating the second carrier in the carrier set group, or the second index indicating the second carrier and the third carrier in the carrier set group.

Optionally, the first control information further includes semi-persistent scheduling, SPS, configuration information, the SPS configuration information including transmission cycle indication information, the SPS configuration information being used to instruct the third transceiver device to perform, based on the transmission cycle indication information, one or more of the following operations: and receiving the data information and/or the second control information on the second carrier at intervals of the transmission period based on the period indicated by the transmission period indication information, and sending feedback control information on the third carrier.

Optionally, the processing unit 1200 is configured to obtain configuration information of discontinuous reception DRX; performing discontinuous reception based on the configuration information of the DRX.

Optionally, the second carrier comprises one or more carriers.

Alternatively, in another implementation, the transceiving unit 1100 may be configured to: acquiring carrier set configuration information, wherein the carrier set configuration information indicates a plurality of carriers; receiving first control information from a first transceiving device on a first carrier, the first control information indicating a second carrier of the plurality of carriers; receiving data information from the first transceiver device on the second carrier, the first carrier being different from the second carrier.

Optionally, the first control information includes a carrier switch indication, where the carrier switch indication is used to indicate that the third transceiver device switches from the first carrier to the second carrier when receiving data; the transceiver unit 1100 is configured to receive data information from the first transceiver device on the second carrier, and includes: and receiving data information from the first transceiver equipment on the second carrier according to the carrier switching indication.

Optionally, the transceiver unit 1100 is further configured to transmit feedback control information on a third carrier.

In another possible design, the communication apparatus 1000 may correspond to the second transceiver device in the above method embodiment, and may be a network device or a chip configured in the network device, for example.

Specifically, the communication apparatus 1000 may correspond to the second transceiver device in the method 300 according to the embodiment of the present application, and the communication apparatus 1000 may include a unit for performing the method performed by the second transceiver device in the method 300 in fig. 3. Also, the units in the communication apparatus 1000 and other operations or functions described above are respectively for implementing the corresponding flow of the second transceiver in the method 300 in fig. 3.

In one implementation, the transceiving unit 1100 and the processing unit 1200 may be respectively configured to:

the processing unit 1200 is configured to determine a first message, where the first message includes first carrier indication information and/or second carrier indication information, the first carrier indication information is used to indicate a first carrier, the second carrier indication information is used to indicate a second carrier, the first carrier is a carrier used for a first transceiver device to transmit control information to a third transceiver device, and the second carrier is a carrier used for the first transceiver device to transmit data information to the third transceiver device.

The transceiving unit 1100 is configured to send the first message to a first transceiving device.

Optionally, the transceiver unit 1100 is further configured to send the first message to a third transceiver device.

Optionally, the transceiver unit 1100 is further configured to receive feedback control information from the third transceiver device on the third carrier.

Optionally, the transceiver unit 1100 is further configured to receive a request message from the first transceiver device, where the request message is used to request a carrier for transmitting control information or data information.

It should also be understood that when the communication apparatus 1000 is a base station, the transceiver unit 1100 in the communication apparatus 1000 may correspond to the radio frequency unit 3012 and the antenna 3011 in the network device 3000 shown in fig. 6, and the processing unit 1100 in the communication apparatus 1000 may be implemented by at least one processor, for example, may correspond to the processor 3022 in the network device 3000 shown in fig. 6.

It should also be understood that when the communication device 1000 is a chip configured in a network device, the transceiver unit 1200 in the communication device 1000 may be an input/output interface.

Optionally, the communication device 1000 further includes a storage unit, and the storage unit may be configured to store instructions or data, and the processing unit may call the instructions or data stored in the storage unit to implement corresponding operations. The storage unit may be implemented by at least one memory, which may correspond to the memory 3021 in the network device 3000 in fig. 6, for example.

Fig. 5 is a schematic structural diagram of a terminal device 2000 according to an embodiment of the present application. The terminal device 2000 may be applied to the system shown in fig. 1 or fig. 2, and performs the functions of the first transceiver device or the third transceiver device (e.g., the terminal device) in the above method embodiments. As shown in fig. 5, the terminal device 2000 includes a processor 2010 and a transceiver 2020. Optionally, the terminal device 2000 further comprises a memory 2030. The processor 2010, the transceiver 2002 and the memory 2030 are in communication with each other through an internal connection path to transmit control or data signals, the memory 2030 is used for storing a computer program, and the processor 2010 is used for calling the computer program from the memory 2030 and executing the computer program to control the transceiver 2020 to transmit and receive signals. Optionally, the terminal device 2000 may further include an antenna 2040, configured to transmit uplink data or uplink control signaling output by the transceiver 2020 by using a wireless signal.

The processor 2010 and the memory 2030 may be combined into a processing device, and the processor 2010 is configured to execute the program codes stored in the memory 2030 to achieve the above functions. In particular, the memory 2030 may be integrated with the processor 2010 or may be separate from the processor 2010. The processor 2010 may correspond to the processing unit in fig. 4.

The transceiver 2020 may correspond to the communication unit in fig. 4, and may also be referred to as a transceiver unit. The transceiver 2020 may include a receiver (or receiver, receiving circuit) and a transmitter (or transmitter, transmitting circuit). Wherein the receiver is used for receiving signals, and the transmitter is used for transmitting signals.

It is to be understood that the terminal device 2000 shown in fig. 5 is capable of implementing the respective procedures involving the first transceiving device or the third transceiving device in the method embodiment shown in fig. 3. The operations or functions of the modules in the terminal device 2000 are respectively to implement the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the above method embodiments, and a detailed description is appropriately omitted herein to avoid redundancy.

The processor 2010 may be configured to perform the actions described in the previous method embodiment that are implemented within the first transceiver device or the third transceiver device, and the transceiver 2020 may be configured to perform the sending or receiving actions of the first transceiver device or the third transceiver device described in the previous method embodiment. Please refer to the description of the previous embodiment of the method, which is not repeated herein.

Optionally, the terminal device 2000 may further include a power supply 2050 for supplying power to various devices or circuits in the terminal device.

In addition, in order to further improve the functions of the terminal device, the terminal device 2000 may further include one or more of an input unit 2060, a display unit 2070, an audio circuit 2080, a camera 2090, a sensor 2100, and the like, and the audio circuit may further include a speaker 2082, a microphone 2084, and the like.

Fig. 6 is a schematic structural diagram of a network device provided in the embodiment of the present application, which may be a schematic structural diagram of a base station 3000, for example. The base station 3000 can be applied to the system shown in fig. 1 or fig. 2, and performs the functions of the second transceiver device or the first transceiver device in the above method embodiments. As shown, the base station 3000 may include one or more DUs 3010 and one or more CUs 3020. The CU3020 may communicate with a NG core (next generation core network, NC). The DU 3010 may include at least one antenna 3011, at least one radio unit 3012, at least one processor 3013, and at least one memory 3014. The DU 3010 is mainly used for transceiving radio frequency signals, converting radio frequency signals to baseband signals, and performing partial baseband processing. The CU3020 may include at least one processor 3022 and at least one memory 3021. The CU3020 and the DU 3010 may communicate with each other via an interface, where a Control Plane (CP) interface may be Fs-C, such as F1-C, and a User Plane (UP) interface may be Fs-U, such as F1-U.

The CU3020 is mainly used for performing baseband processing, controlling a base station, and the like. The DU 3010 and the CU3020 may be physically located together or physically located separately, that is, distributed base stations. The CU3020 is a control center of the base station, and may also be referred to as a processing unit, and is mainly configured to perform a baseband processing function. For example, the CU3020 may be configured to control the base station to perform the operation procedure related to the access network device in the above method embodiment.

Specifically, the baseband processing on the CU and the DU may be divided according to the protocol layers of the radio network, for example, the functions of the PDCP layer and the above protocol layers are set in the CU, and the functions of the protocol layers below the PDCP layer, for example, the functions of the RLC layer and the MAC layer, are set in the DU. For another example, a CU realizes functions of an RRC layer and a PDCP layer, and a DU realizes functions of an RLC layer, an MAC layer, and a PHY layer.

Further, base station 3000 may optionally include one or more radio frequency units (RUs), one or more DUs, and one or more CUs. Wherein a DU may include at least one processor 3013 and at least one memory 3014, an RU may include at least one antenna 3011 and at least one radio frequency unit 3012, and a CU may include at least one processor 3022 and at least one memory 3021.

In an example, the CU3020 may be formed by one or more single boards, where the multiple single boards may support a radio access network with a single access indication (e.g., a 5G network) or support radio access networks with different access schemes (e.g., an LTE network, a 5G network, or other networks) respectively. The memory 3021 and the processor 3022 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits. The DU 3010 may be formed by one or more boards, where the boards may jointly support a radio access network with a single access instruction (e.g., a 5G network), and may also respectively support radio access networks with different access schemes (e.g., an LTE network, a 5G network, or other networks). The memory 3014 and the processor 3013 may serve one or more boards. That is, the memory and processor may be provided separately on each board. Multiple boards may share the same memory and processor. In addition, each single board can be provided with necessary circuits.

It should be appreciated that the base station 3000 shown in fig. 6 is capable of implementing various processes involving either the first transceiver device or the second transceiver device in the method embodiment shown in fig. 3. The operations and/or functions of the respective modules in the base station 3000 are respectively for implementing the corresponding flows in the above-described method embodiments. Reference may be made specifically to the description of the above method embodiments, and a detailed description is appropriately omitted herein to avoid redundancy.

It should be understood that the base station 3000 shown in fig. 6 is only one possible architecture of a network device, and should not constitute any limitation to the present application. The method provided by the application can be applied to access network equipment with other architectures. E.g. access network equipment including CUs, DUs and AAUs etc. The present application is not limited to the specific architecture of the network device.

According to the method provided by the embodiment of the present application, the present application further provides a computer program product, which includes: computer program code which, when run on a computer, causes the computer to carry out the method on the side of the first transceiver device in the embodiment shown in fig. 3, or causes the computer to carry out the method on the side of the second transceiver device in the embodiment shown in fig. 3, or causes the computer to carry out the method on the side of the third transceiver device in the embodiment shown in fig. 3.

According to the method provided by the embodiment of the present application, the present application further provides a computer-readable medium, which stores program codes, and when the program codes are run on a computer, the computer is caused to execute the method on the first transceiver device side in the embodiment shown in fig. 3.

According to the method provided by the embodiment of the present application, the present application further provides a computer-readable medium, which stores program codes, and when the program codes are run on a computer, the computer is caused to execute the method on the second transceiver side in the embodiment shown in fig. 3.

According to the method provided by the embodiment of the present application, the present application further provides a computer-readable medium, which stores program codes, and when the program codes are run on a computer, the computer is caused to execute the method on the third transceiver side in the embodiment shown in fig. 3.

The embodiment of the application also provides a processing device, which comprises a processor and an interface; the processor is used for executing the information transmission method in any method embodiment.

In the above-mentioned apparatus embodiments, the transceiver devices (the first transceiver device, the second transceiver device, and the third transceiver device) and the transceiver devices (the first transceiver device, the second transceiver device, and the third transceiver device) in the method embodiments completely correspond to each other, and corresponding steps are performed by corresponding modules or units, for example, a communication unit (transceiver) performs steps of receiving or transmitting in the method embodiments, and steps other than transmitting and receiving may be performed by a processing unit (processor). The functions of the specific elements may be referred to in the respective method embodiments. The number of the processors may be one or more.

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

It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip having signal processing capability. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal Processor (DSP), a Microcontroller (MCU), a programmable logic controller (PLD), or other integrated chip. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

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

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

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

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

According to the method provided by the embodiment of the present application, the present application further provides a system, which includes the aforementioned one or more transceiver devices (the first transceiver device, the second transceiver device, and the third transceiver device).

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

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

It should also be understood that, in the present application, "when …", "if" and "if" all refer to the fact that the UE or the base station will perform the corresponding processing under certain objective conditions, and are not limited time, and do not require the UE or the base station to perform certain judgment actions, nor do they mean that there are other limitations.

Those of ordinary skill in the art will understand that: the various numbers of the first, second, etc. mentioned in this application are only used for the convenience of description and are not used to limit the scope of the embodiments of this application, but also to indicate the sequence.

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

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

The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

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

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

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

As used herein, the term "predefined" in the context of the present application may be understood to mean defining, predefining, storing, pre-negotiating, pre-configuring, curing, or pre-firing. The configuration in the embodiment of the present application may be understood as being notified through RRC signaling, MAC signaling, and physical layer information, where the physical layer information may be transmitted through a PDCCH or a PDSCH.

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

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

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

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

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

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

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

Claims

1. A method of information transmission, comprising:

a first transceiver device receives a first message from a second transceiver device, wherein the first message comprises first carrier indication information and/or second carrier indication information, the first carrier indication information is used for indicating a first carrier, and the second carrier indication information is used for indicating a second carrier;

the first transceiver device sends first control information to a third transceiver device on the first carrier, wherein the first control information is used for indicating the second carrier;

and the first transceiver device transmits data information to the third transceiver device on the second carrier, where the first carrier is different from the second carrier, and the third transceiver device and the first transceiver device perform side-chain transmission.

2. The method of claim 1, further comprising:

and the first transceiver device sends second control information to the third transceiver device on the second carrier, wherein the second control information is used for scheduling the data information.

3. The method according to claim 1 or 2, wherein the first message further includes third carrier indication information, and the third carrier indication information is used for indicating a third carrier, and the method further includes:

the first transceiver device receives feedback control information from the third transceiver device on the third carrier, where the first control information is further used to indicate the third carrier.

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

the first transceiving equipment receives feedback control information from the third transceiving equipment on the first carrier.

5. The method of any of claims 1-4, wherein the first message further comprises a first index, wherein the first index is used to identify a carrier set group, wherein the carrier set group comprises one or more of: the first carrier, the second carrier, and a third carrier;

6. The method according to any of claims 1 to 4, wherein the first message further includes a first carrier switch indication, and the first carrier switch indication indicates that the first transceiver device switches from the first carrier to the second carrier when transmitting data information to the third transceiver device;

7. The method according to any of claims 1 to 6, wherein before the first transceiver device receives the first message from the second transceiver device, the method further comprises:

the first transceiver device sends a request message to the second transceiver device, where the request message is used to request a carrier for transmitting control information or data information.

8. The method of any of claims 1-7, wherein the second carrier comprises one or more carriers.

9. A method of information transmission, comprising:

the third transceiver receives first control information sent by the first transceiver on the first carrier, wherein the first control information is used for indicating a second carrier;

and the third transceiver device receives data information from the first transceiver device on the second carrier, where the first carrier is different from the second carrier, and the third transceiver device and the first transceiver device perform side-chain transmission therebetween.

10. The method of claim 9, further comprising:

the third transceiver device receives second control information from the first transceiver device on the second carrier, where the second control information is used for scheduling the data information.

11. The method according to claim 9 or 10, characterized in that the method further comprises:

the third transceiver device sends feedback control information to the first transceiver device or the second transceiver device on a third carrier, where the first control information is further used to indicate the third carrier.

12. The method according to claim 9 or 10, characterized in that the method further comprises:

and the third transceiver device sends feedback control information to the first transceiver device or the second transceiver device on the first carrier.

13. The method according to any of claims 9 to 12, wherein the first control information comprises a second carrier switch indication, the second carrier switch indication being used to indicate the third transceiver device to switch from the first carrier to the second carrier when receiving data;

the third transceiver device receiving data information from the first transceiver device on the second carrier, including:

and the third transceiver receives the data information from the first transceiver on the second carrier according to the second carrier switching indication.

14. The method according to any one of claims 9 to 12, further comprising:

the third transceiving device receives the first message from the second transceiving device.

15. The method according to claim 14, characterized in that said first message comprises a third carrier switch indication for indicating said third transceiving equipment to switch from said first carrier to said second carrier when receiving data;

and the third transceiver receives the data information from the first transceiver on the second carrier according to the third carrier indication information.

16. The method of claim 14, wherein the first message further comprises a first index indicating a carrier set group, the carrier set group comprising the first carrier, the second carrier, and a third carrier;

17. The method of any of claims 9-16, wherein the second carrier comprises one or more carriers.

18. A method of information transmission, comprising:

the method comprises the steps that a second transceiver determines a first message, wherein the first message comprises first carrier indication information and/or second carrier indication information, the first carrier indication information is used for indicating a first carrier, the second carrier indication information is used for indicating a second carrier, the first carrier is a carrier used for the first transceiver to transmit control information to a third transceiver, and the second carrier is a carrier used for the first transceiver to transmit data information to the third transceiver;

and the second transceiver device sends the first message to the first transceiver device.

19. The method of claim 18, further comprising:

the second transceiver device sends the first message to a third transceiver device.

20. The method according to claim 18 or 19, wherein the first message further includes third carrier indication information, and the third carrier indication information is used for indicating a third carrier, and the third carrier is used for the second transceiver device to transmit feedback control information.

21. The method of claim 20, further comprising:

the second transceiving equipment receives feedback control information from the third transceiving equipment on the third carrier.

22. The method of claim 18 or 19, further comprising:

the second transceiving equipment receives feedback control information from the third transceiving equipment on the first carrier.

23. The method of any one of claims 18 to 22, wherein the first message further comprises a first index indicating a carrier set group, wherein the carrier set group comprises one or more of: the first carrier, the second carrier, and a third carrier.

24. The method according to any of claims 18 to 22, wherein the first message further comprises a first carrier switch indication, wherein the first carrier switch indication indicates that the first transceiver device is to switch from the first carrier to the second carrier when transmitting data to the third transceiver device.

25. The method according to any of claims 18 to 24, wherein before the second transceiver device sends the first message to the first transceiver device, the method further comprises:

the second transceiver device receives a request message from the first transceiver device, where the request message is used to request a carrier for transmitting control information or data information.

26. A communication apparatus, characterized in that it comprises means for implementing the method according to any one of claims 1 to 25.

27. A communications apparatus, comprising:

a processor for executing computer instructions stored in a memory to cause the apparatus to perform the method of any of claims 1 to 25.

28. A computer storage medium comprising a program or instructions which, when executed, perform a method as claimed in any one of claims 1 to 25.