Method and apparatus for information transmission

Abstract

The present application provides a method and apparatus for information transmission. By scheduling different carrier spectrums for transmission, it can ensure large-bandwidth transmission while meeting the low-latency requirements. The method includes: a first transceiver 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 transceiver device sends first control information to a third transceiver device on the first carrier, and the first control information is used to indicate the second carrier; the first transceiver device sends data information to the third transceiver device on the second carrier, and the first carrier is different from the second carrier, wherein the third transceiver device and the first transceiver device perform sidelink transmission.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly, to a method and apparatus for information transmission. Background Art

[0002] With the continuous evolution of wireless communication technologies and the popularization of intelligent terminals, the number of terminals in wireless cellular networks is experiencing an explosive growth. At the same time, a large number of end-users have strong demands for high speed, large capacity, and low latency. In addition, application scenarios such as public safety, social networks, proximity data sharing, and local advertising have also gradually increased the demand of mobile users to identify and communicate with nearby users, known as Proximity Services (ProSe). Against this backdrop of demand, Device-to-Device (D2D) communication technology has emerged. D2D technology enables direct communication between nearby terminals without relaying through a base station, effectively reducing transmission latency and being suitable for high-speed data stream transmission. Moreover, introducing D2D communication in a cellular network can relieve the burden on the base station. D2D communication can operate in an authorized frequency band and is still controlled by the base station, allowing for adaptive configuration or scheduling according to the scenario. By reusing the spectrum of cellular users, spectrum efficiency can be improved.

[0003] To address the asymmetric uplink and downlink data transmission rates, Time Division Duplexing (TDD) technology is currently used to support different uplink and downlink time ratios. The base station can adaptively adjust the uplink and downlink time ratios using a single carrier according to different service types, that is, differentially allocate time resources in two transmission directions using the same carrier to meet the asymmetric uplink and downlink service requirements. In the D2D communication scenario, when differentially allocating time resources in the two-way transmission direction, for a user with a small amount of transmitted traffic, it must wait until the reception time slot is completed before it can transmit; or, for a user with a large amount of transmitted traffic, the Hybrid Automatic Repeat reQuest (HARQ) message must wait until the reception time slot to be received, and the latency is severely limited by the cycle of transceiver switching, unable to meet the low-latency requirements. Summary of the Invention

[0004] This application provides a method and apparatus for information transmission, which can ensure large-bandwidth transmission while meeting low-latency requirements by scheduling different carrier spectrums for transmission.

[0005] 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, first control information is sent to a third transceiver device on the first carrier, and the first control information is used to indicate the second carrier; Finally, data information is sent to the third transceiver device on the second carrier, where the first carrier is different from the second carrier, and a sidelink transmission exists between the third transceiver device and the first transceiver device. Therefore, by sending control information and data information to the third transceiver device on different carriers, the first transceiver device can be unrestricted by the transceiver cycle limit in the same carrier and can meet the low-latency requirement.

[0006] The first control information is used to indicate the second carrier can be replaced with: The first control information is used to indicate the carrier for sending data information, that is, the carrier used by the first transceiver device to send data information to the third transceiver device.

[0007] Optionally, the first control information is used to schedule the data information.

[0008] Optionally, on which carrier the data information is transmitted can also be predefined. In this way, if the first control information and the second control information are not required, the transmission of the data information can also be realized.

[0009] In a possible implementation manner, the method further includes: The first transceiver device sends second control information to the third transceiver device on the second carrier, and the second control information is used to schedule the data information. Here, the second carrier can also carry control information for scheduling the data information on this 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. In this way, in the case of needing to continuously transmit multiple data, there is no need to first receive the scheduling information on the first carrier and then switch to the second carrier to receive the data information. Instead, the scheduling information and the data information can be received on one carrier, avoiding frequent carrier switching.

[0010] Optionally, the first message further includes third carrier indication information for indicating a third carrier. The method further includes: the first transceiver device receiving 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. The feedback control information may include HARQ feedback information or a channel state information CSI measurement result. Therefore, the first transceiver device may also receive feedback control information from the third transceiver device on the third carrier.

[0011] Optionally, the feedback control information may be feedback information for data information transmitted on a second carrier.

[0012] In a possible implementation, the first transceiver device receives feedback control information from the third transceiver device on the first carrier. Therefore, the first transceiver device may also receive feedback control information from the third transceiver device on the first carrier.

[0013] Optionally, the first message further includes a first index for identifying a carrier set group, where the carrier set group includes one or more of the following: the first carrier, the second carrier, and the third carrier; the first control information for indicating the second carrier includes: the first control information includes a second index, where the second index indicates the second carrier in the carrier set group, or the second index indicates 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 and carries the 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 third transceiver device of the carrier identified by the second index.

[0014] Optionally, the first message further includes a first carrier handover indication for the first transceiver device to hand over from the first carrier to the second carrier when sending data information to the third transceiver device; the first control information for indicating the second carrier includes: the first control information includes a second carrier handover indication for indicating the third transceiver device to hand over from the first carrier to the second carrier when receiving data information. Therefore, the first transceiver device can indirectly inform the third transceiver device of which carriers to use for receiving data information through the carrier handover indication.

[0015] In a possible implementation, before the first transceiver device receives a 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.

[0016] Optionally, the first message includes semi-persistent scheduling (SPS) configuration information, and the SPS configuration information includes transmission period indication information; the first transceiver device, based on the transmission period indicated by the transmission period indication information, sends first control information to a third transceiver device on the first carrier every other transmission period, and the first control information includes the transmission period indication information; the first transceiver device, based on the transmission period indicated by the transmission period indication information, sends data information to the third transceiver device on the second carrier every other transmission period.

[0017] Optionally, the first control information includes semi-persistent scheduling (SPS) configuration information, and the SPS configuration information includes transmission period indication information. The SPS configuration information is used to instruct the third transceiver device to perform one or more of the following operations based on the transmission period indication information: receive the data information and / or second control information on the second carrier every other transmission period indicated by the transmission period indication information, and send feedback control information on the third carrier.

[0018] By introducing the SPS configuration information, it can be achieved that control messages (such as the first message or the first control information) are valid within the semi-persistent scheduling period until the semi-persistent scheduling is released, so that it is not necessary to transmit control messages before each data transmission, which helps to save resource overhead.

[0019] Optionally, the second carrier includes one or more carriers.

[0020] 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 a first transceiver device on a first carrier, where the first control information is used to indicate a second carrier; receives data information from the first transceiver device on the second carrier, where the first carrier is different from the second carrier, and where side-chain transmission is performed between the third transceiver device and the first transceiver device. Wherein, the first carrier is determined by the first transceiver device by receiving a first message from a second transceiver device, and the first message includes first carrier indication information for indicating the first carrier; and / or, the second carrier is determined by the first transceiver device by receiving the first message from the second transceiver device, and the first message includes second carrier indication information for indicating the second carrier. Therefore, by receiving control information and data information from the first transceiver device on different carriers, the third transceiver device is not limited by the transceiver cycle limit in the same carrier and can meet the low-latency requirement.

[0021] In a 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 to schedule the data information. Here, control information for scheduling data information on this carrier can also be carried on the second carrier. By transmitting the second control information and the data information on the second carrier, it can enable the third transceiver device to 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. In this way, in the case of needing to continuously transmit multiple data, there is no need to first receive scheduling information on the first carrier and then switch to the second carrier to receive data information. Instead, it is only necessary to receive scheduling information and data information on one carrier, avoiding frequent carrier switching.

[0022] In a 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. Therefore, the third transceiver device can also send feedback control information on the third carrier.

[0023] In a 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 the first carrier.

[0024] Optionally, the first control information includes a second carrier switching indication for instructing the third transceiver device to switch from the first carrier to the second carrier when receiving data; the third transceiver device receives data information from the first transceiver device on the second carrier according to the second carrier switching indication. Therefore, the third transceiver device can know whether it is necessary to switch to the second carrier to receive data information through the second carrier switching indication.

[0025] In a possible implementation manner, the method further includes: the third transceiver device receives the first message from the second transceiver device. That is to say, the third transceiver device can also directly receive the first message from the second transceiver device to obtain the carrier indication information.

[0026] Optionally, the first message includes a third carrier switching indication for instructing the third transceiver device to switch from the first carrier to the second carrier when receiving data; the third transceiver device receives data information from the first transceiver device on the second carrier according to the third carrier indication information. Therefore, the third transceiver device can obtain the third carrier switching indication through the first message sent by the second transceiver device, so as to decide whether to switch to the second carrier to receive data information based on the third carrier switching indication.

[0027] Optionally, the first message further includes a first index for indicating a carrier set group, and the carrier set group includes the first carrier, the second carrier, and the third carrier; the first control information for indicating the second carrier includes: the first control information includes a second index, and the second index indicates the second carrier in the carrier set group, or the second index indicates the second carrier and the third carrier in the carrier set group. Therefore, the third transceiver device can obtain the carrier set group identified by the first index through the first index, and then know the second carrier, or the second carrier and the third carrier through the second index.

[0028] Optionally, the first control information further includes semi-persistent scheduling (SPS) configuration information. The SPS configuration information includes transmission period indication information, and is used to instruct the third transceiver device to perform one or more of the following operations based on the transmission period indication information: receive the data information and / or the second control information on the second carrier every other transmission period indicated by the transmission period indication information, and send feedback control information on the third carrier. By introducing the SPS configuration information, it is possible to make the control message (such as the first message or the first control information) valid within the semi-persistent scheduling period until the semi-persistent scheduling is released, so that it is not necessary to transmit the control message before each data transmission, which helps to save resource overhead.

[0029] Optionally, the method further includes: the third transceiver device obtains discontinuous reception (DRX) configuration information; the third transceiver device performs discontinuous reception based on the DRX configuration information. Here, by performing discontinuous reception based on the DRX configuration information, the third transceiver device can enter the sleep state during the non-active time and no longer monitor the control information sent by the first transceiver device, effectively reducing the power consumption of the third transceiver device and improving the battery usage time.

[0030] Optionally, the second carrier includes one or more carriers.

[0031] 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 a 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, and the second carrier indication information is used to indicate a second carrier. The first carrier is a carrier for the first transceiver device to transmit control information to the third transceiver device, and the second carrier is a carrier for the first transceiver device to transmit data information to the third transceiver device; and send the first message to the first transceiver device. Therefore, by configuring different carriers for the first transceiver device and the third transceiver device, so as to transmit control information and data information on different carriers, the second transceiver device can be unrestricted by the transceiver cycle limit in the same carrier and can meet the low-latency requirement.

[0032] In a possible implementation manner, the method further includes: the second transceiver device sends the first message to the third transceiver device. That is to say, the second transceiver device can not only send the first message to the first transceiver device, but also send the first message to the third transceiver device.

[0033] Optionally, the first message further includes third carrier indication information for indicating a third carrier, and the third carrier is used by the third transceiver device to send feedback control information.

[0034] Here, the second transceiver device may receive feedback control information from the third transceiver device on the first carrier or the third carrier.

[0035] In a possible implementation, the method further includes: the second transceiver device receives feedback control information from the third transceiver device on the third carrier.

[0036] In a possible implementation, the method further includes: the second transceiver device receives feedback control information from the third transceiver device on the first carrier.

[0037] Optionally, the first message further includes a first index for indicating a carrier set group, and the carrier set group includes one or more of the following: the first carrier, the second carrier, and the third carrier.

[0038] Optionally, the first message further includes a first carrier switching indication for indicating that the first transceiver device switches from the first carrier to the second carrier when sending data to the third transceiver device.

[0039] 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, and the request message is used to request a carrier for transmitting control information or data information. Here, the second transceiver device may configure a carrier for transmitting control information or data information for the second transceiver device based on the request message of the first transceiver device.

[0040] Optionally, the first message further includes semi-persistent scheduling (SPS) configuration information, and the SPS configuration information includes transmission period indication information; the SPS configuration information is used to instruct the first transceiver device to perform one or more of the following operations based on the transmission period indication information: send first control information to the third transceiver device on the first carrier and send data information to the third transceiver device on the second carrier based on the period indicated by the transmission period indication information.

[0041] By introducing the SPS configuration information, it can be achieved that control messages (such as the first message or the first control information) are valid within the semi-persistent scheduling period until the semi-persistent scheduling is released, so that it is not necessary to transmit control messages before each data transmission, which helps to save resource overhead.

[0042] Fourthly, 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) obtains 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 on the first carrier to a third transceiver device, where the first control information is used to indicate the second carrier; and sends data information on the second carrier to the third transceiver device, where the first carrier is different from the second carrier. Therefore, the first transceiver device can select by itself the carrier for sending control information and / or the carrier for sending data information, and send control information and data information to the third transceiver device on different carriers, and can be unrestricted by the transceiver cycle limit in the same carrier, and can meet the low-latency requirement.

[0043] Optionally, the preset condition includes one or more of the following conditions: the traffic volume of the first transceiver device meets a preset condition, and the channel quality indication value meets a preset condition.

[0044] Optionally, that the traffic volume of the first transceiver device meets a preset condition means that the traffic volume sent by the first transceiver device meets a first mapping relationship, and the first mapping relationship includes the correspondence between the traffic volume and the carrier.

[0045] Optionally, that the channel quality indication value meets a preset condition means that the channel quality indication value meets a second mapping relationship, and the second mapping relationship includes the correspondence between the carrier and the channel quality value.

[0046] Optionally, the first control information includes a carrier switching indication, and the carrier switching indication is used to indicate the third transceiver device to switch from the first carrier to the second carrier when receiving data.

[0047] Optionally, the method further includes: the first transceiver device sends second control information on the second carrier to the third transceiver device, and the second control information is used to schedule the data information.

[0048] Optionally, the method further includes: 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.

[0049] Optionally, the first control information for indicating the second carrier includes: a second index is included in the first control information, the second index indicating the second carrier among the plurality of carriers, or the second index indicating the second carrier and the third carrier among the plurality of carriers.

[0050] 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) obtains carrier set configuration information, where the carrier set configuration information indicates a plurality of carriers; then, the third transceiver device receives first control information from a first transceiver device on a first carrier, the first control information being used to indicate a second carrier among the plurality of carriers; the third transceiver device receives data information from the first transceiver device on the second carrier, the first carrier being different from the second carrier. Therefore, the third transceiver device can receive control information and data information on different carriers, and is not limited by the transceiver cycle limit in the same carrier, and can meet the low-latency requirement. Wherein, the first carrier and / or the second carrier is selected by the first transceiver device based on a preset condition.

[0051] Optionally, the first control information includes a carrier switching indication, and the carrier switching indication is used to indicate the third transceiver device to switch from the first carrier to the second carrier when receiving data; the third transceiver device receives data information from the first transceiver device on the second carrier according to the carrier switching indication.

[0052] Optionally, the method further includes: the third transceiver device sends feedback control information on a third carrier.

[0053] Optionally, the first control information for indicating the second carrier includes: a second index is included in the first control information, the second index indicating the second carrier among the plurality of carriers, or the second index indicating the second carrier and the third carrier among the plurality of carriers.

[0054] In a sixth aspect, a communication device is provided, including various modules or units for performing the methods in any one of the possible implementation manners of the first aspect or the fourth aspect.

[0055] In a seventh aspect, a communication device is provided, including a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the methods in any one of the possible implementation manners of the first aspect or the fourth aspect above. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

[0056] In one implementation, the communication device is a first transceiver device, for example, 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.

[0057] In another implementation, the communication device is a chip configured in a terminal device. When the communication device is a chip configured in a terminal device, the communication interface may be an input / output interface.

[0058] Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0059] In a eighth aspect, a communication device is provided, including various modules or units for performing the method in any one of the possible implementations in the second aspect or the fifth aspect.

[0060] In a ninth aspect, a communication device is provided, including a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the method in any one of the possible implementations in the above second aspect or the fifth aspect. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

[0061] In one implementation, the communication device is a third transceiver device, for example, a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver, or an input / output interface.

[0062] In another implementation, the communication device is a chip configured in a terminal device. When the communication device is a chip configured in a terminal device, the communication interface may be an input / output interface.

[0063] Optionally, the transceiver may be a transceiver circuit. Optionally, the input / output interface may be an input / output circuit.

[0064] In a tenth aspect, a communication device is provided, including various modules or units for performing the method in any one of the possible implementations in the third aspect.

[0065] In an eleventh aspect, a communication device is provided, including a processor. The processor is coupled to a memory and can be used to execute instructions in the memory to implement the method in any one of the possible implementations in the above third aspect. Optionally, the communication device further includes a memory. Optionally, the communication device further includes a communication interface, and the processor is coupled to the communication interface.

[0066] In one implementation, the communication device is a second transceiver device, for example, an access network device (or network device). When the communication device is an access network device, the communication interface can be a transceiver, or an input / output interface.

[0067] In another implementation, the communication device is a chip configured in an access network device. When the communication device is a chip configured in an access network device, the communication interface can be an input / output interface.

[0068] In a twelfth aspect, a processor is provided, including: an input circuit, an output circuit, and a 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 executes the method in any one of the possible implementations of the first aspect to the fifth aspect described above.

[0069] In a specific implementation process, the above-mentioned processor can be a chip, the input circuit can be an input pin, the output circuit can be an output pin, and the processing circuit can be transistors, gate circuits, flip-flops, and various logic circuits, etc. The input signal received by the input circuit can be received and input by, for example but not limited to, a receiver, and the signal output by the output circuit can be output to, for example but not limited to, a transmitter and transmitted by the transmitter. Moreover, the input circuit and the output circuit can be the same circuit, which serves as the input circuit and the output circuit at different times respectively. The embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.

[0070] In a thirteenth aspect, a device is provided, including a processor and a memory. The processor is configured to read instructions stored in the memory, and can receive a signal through a receiver and transmit a signal through a transmitter, so as to execute the method in any one of the possible implementations of the first aspect to the fifth aspect.

[0071] Optionally, the processor is one or more, and the memory is one or more.

[0072] Optionally, the memory can be integrated with the processor, or the memory is separately provided from the processor.

[0073] In a specific implementation process, the memory can be a non-transitory memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be separately provided on different chips. The embodiments of the present application do not limit the type of the memory and the setting manner of the memory and the processor.

[0074] It should be understood that the relevant data interaction process, such as sending indication information, can be a process of outputting indication information from the processor, and receiving capability information can be a process of the processor receiving input capability information. Specifically, the processed output data can be output to the transmitter, and the input data received by the processor can come from the receiver. Among them, the transmitter and the receiver can be collectively referred to as the transceiver.

[0075] The device in the above thirteenth aspect can be a chip. The processor can be implemented by hardware or by software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, which is implemented by reading the software code stored in the memory. The memory can be integrated in the processor or can be located outside the processor and exist independently.

[0076] In a fourteenth aspect, a computer program product is provided. The computer program product includes: a computer program (which can also be referred to as code or instruction). When the computer program is run, it causes the computer to execute the method in any one of the possible implementation manners in the above first aspect to the fifth aspect.

[0077] In a fifteenth aspect, a computer-readable medium is provided. The computer-readable medium stores a computer program (which can also be referred to as code or instruction). When it runs on a computer, it causes the computer to execute the method in any one of the possible implementation manners in the above first aspect to the fifth aspect.

[0078] In a sixteenth aspect, a communication system is provided, including at least two of the foregoing first transceiver device, second transceiver device, and third transceiver device. Description of the Drawings

[0079] Figure 1 is a schematic architecture diagram of a communication system applying an embodiment of the present application;

[0080] Figure 2 is another schematic architecture diagram of a communication system applying an embodiment of the present application;

[0081] Figure 3 is a schematic interaction diagram of the method for information transmission applying an embodiment of the present application;

[0082] Figure 4 is a schematic block diagram of a communication device provided by an embodiment of the present application;

[0083] Figure 5 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

[0084] Figure 6 is a schematic structural diagram of a network device provided by an embodiment of the present application. Detailed implementation manners

[0085] The technical solutions in the present application will be described below with reference to the accompanying drawings.

[0086] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Long Term Evolution (LTE) systems, LTE Frequency Division Duplex (FDD) systems, LTE Time Division Duplex (TDD), 5th generation (5G) systems or New Radio (NR), Device-to-Device (D2D) systems, Vehicle-to-Everything (V2X) systems, and scenarios such as Relay, Mesh, Integrated Access & Backhaul (IAB), V2X, UE cooperation, high-frequency transmission, industrial scenarios, robot cooperation, Internet of Things, etc. Among them, V2X can include Vehicle-to-Network (V2N), Vehicle-to-Vehicle (V2V), Vehicle-to-Infrastructure (V2I), Vehicle-to-Pedestrian (V2P), etc., Long Term Evolution-Vehicle (LTE-V), Internet of Vehicles, Machine Type Communication (MTC), Internet of Things (IoT), Long Term Evolution-Machine (LTE-M), Machine-to-Machine (M2M), etc.

[0087] In the embodiments of the present application, the terminal device may also be referred to as a user equipment (UE), access terminal, user unit, user station, mobile station, mobile device, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The terminal device in the embodiments of the present application may be a mobile phone, a tablet computer (pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device, or other processing devices connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, a terminal device in a future evolved public land mobile network (PLMN), or a terminal device in a non-public network, etc.

[0088] Among them, the wearable device may also be referred to as a wearable intelligent device, which is a general term for devices developed by applying wearable technology to the intelligent design of daily wear, such as glasses, gloves, watches, clothing, and shoes. The wearable device is a portable device that can be directly worn on the body or integrated into the user's clothes or accessories. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable intelligent devices include those with complete functions and large sizes that can realize complete or partial functions without relying on a smart phone, such as smart watches or smart glasses, etc., and those that only focus on a certain type of application function and need to cooperate with other devices such as smart phones, such as various smart bracelets and smart jewelry for physical sign monitoring.

[0089] In addition, the terminal device can also be a terminal device in an Internet of Things (IoT) system. The IoT is an important part of the future development of information technology. Its main technical feature is to connect objects to the network through communication technology, thereby realizing an intelligent network of human-machine interconnection and object-object interconnection.

[0090] The specific form of the terminal device is not limited in this application.

[0091] The network device (or called access network device) in the embodiments of this application can be any device with wireless transceiver function and can provide network access function for the terminal device. The network device includes but is 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 (for example, home evolved Node B, or home Node B, HNB), baseband unit (BBU), access point (AP) in a wireless fidelity (WIFI) system, wireless relay node, wireless backhaul node, transmission point (TP) or transmission and reception point (TRP), etc. It can also be a gNB or transmission point (TRP or TP) in a 5G (such as NR) system, or one or a group (including multiple antenna panels) of antenna panels of a base station in a 5G system, or, it can also be a network node constituting a gNB or transmission point, such as a baseband unit (BBU), or a distributed unit (DU), etc.

[0092] 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 some functions of the gNB, and the DU implements some functions of the gNB. For example, the CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and the functions of the packet data convergence protocol (PDCP) layer. The DU is responsible for processing physical layer protocols and real-time services, implementing the functions of the radio link control (RLC) layer, the medium access control (MAC) layer, and the physical (PHY) layer. The AAU implements some physical layer processing functions, radio frequency processing, and related functions of active antennas. Since the information in the RRC layer will ultimately become the information in the PHY layer, or is transformed from the information in the PHY layer, thus, in this architecture, high-layer signaling, such as RRC layer signaling, can also be considered to be sent by the DU, or sent by the DU + AAU. It can be understood that the access network device can be a device including one or more of the CU node, the DU node, and the AAU node.

[0093] It should be noted that the CU can be classified as an access network device or as a core network (CN) device, and this application does not make a limitation in this regard. In the embodiments of this application, for the convenience of understanding and explanation, the CU is classified as an access network device.

[0094] The access network device provides services for a cell, and the terminal device communicates with the cell through the transmission resources (such as frequency domain resources, or in other words, spectrum resources) allocated by the access network device. This cell can belong to a macro base station (such as a macro eNB or a macro gNB, etc.), or to a base station corresponding to a small cell. Here, the small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage range and low transmission power, and are suitable for providing high-rate data transmission services.

[0095] In the embodiments of the present application, a terminal device or a network device includes a hardware layer, an operating system layer running on top of 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 main memory). The operating system can be any one or more computer operating systems that implement service processing through processes. For example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or Windows operating system, etc. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. Moreover, the embodiments of the present application do not particularly limit the specific structure of the execution subject of the method provided in the embodiments of the present application. As long as it can communicate according to the method provided in the embodiments of the present application by running a program that records the code of the method provided in the embodiments of the present application. For example, the execution subject of the method provided in the embodiments of the present application can be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.

[0096] In addition, various aspects or features of the present application can be implemented as a method, an apparatus, or an article of manufacture using standard programming and / or engineering techniques. The term "article of manufacture" used in the present application covers a computer program accessible from any computer-readable device, carrier, or medium. For example, computer-readable media can include, but are not limited to: magnetic storage devices (such as hard disks, floppy disks, or magnetic tapes, etc.), optical discs (such as compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards, and flash memory devices (such as erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). Additionally, the various storage media described herein can represent one or more devices and / or other machine-readable media for storing information. The term "machine-readable media" can include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0097] Figure 1 is a schematic architecture diagram of a communication system applying the embodiments of the present application. As Figure 1As shown in the figure, the communication system includes at least one transceiver device 1 (for example, the transceiver device 1 is a base station), and multiple transceiver devices 2 (for example, the transceiver device 2 is a user equipment (UE)). The multiple UEs include at least two UEs that can be used for D2D communication and at least one UE that can be used for cellular communication. Among them, D2D communication refers to the direct communication between two UEs, and cellular communication refers to the communication between a UE and a base station. The UE performing D2D communication can be called a D2D UE or a D2D terminal. The D2D UE may also have the function of cellular communication and can perform cellular communication when there is a communication requirement with the base station. The UE performing cellular communication has the function of performing cellular communication with the base station and can also be called a cellular UE or a cellular terminal. The cellular UE may also have the D2D communication function and can perform D2D communication with other D2D UEs when there is a communication requirement between it and other D2D UEs.

[0098] Figure 2 is another schematic diagram of the architecture of the communication system 200 applying the embodiments of the present application. As Figure 2 shown in the figure, the communication system 200 includes three types of transceiver devices. Exemplarily, the three types of transceiver devices are respectively: a base station, an access point, and a UE. Among them, the access point can be connected to one or more base stations and be controlled by the base station, and can communicate with the UE, configure resources for the UE, etc. For example, the base station can be a macro base station, and the access point can be a small station or a relay node (such as an IAB node).

[0099] It can be understood that the above two architectures are only schematic diagrams and do not limit the protection scope of the embodiments of the present application. The communication system applied in the present application can also be other system architectures.

[0100] The communication system applied in the embodiments of the present application includes at least three transceiver devices. At least one of the three transceiver devices can communicate with the other two transceiver devices. For example, the first transceiver device can communicate with the second transceiver device and the third transceiver device; at least one of the three transceiver devices can be controlled and scheduled by another transceiver device. For example, the second transceiver device can control and schedule the first transceiver device, and the first transceiver device can also control and schedule the third transceiver device.

[0101] The "transmission" in the embodiments of the present application can be flexibly understood, that is, "transmission" can be understood as "sending" or "receiving".

[0102] It can be understood that some optional features in the embodiments of the present application can, in certain scenarios, be implemented independently without relying on other features, such as the current solution they are based on, to solve corresponding technical problems and achieve corresponding effects. In some scenarios, they can also be combined with other features according to requirements. Correspondingly, the apparatuses given in the embodiments of the present application can also implement these features or functions accordingly, which will not be elaborated herein.

[0103] It should be understood that the "embodiments" mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, the various embodiments throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner.

[0104] Figure 3 FIG. shows a schematic interaction diagram of a method 300 for information transmission according to an embodiment of the present application. Exemplarily, Figure 3 The first transceiver device in Figure 1 can be the UE in Figure 3 or can refer to a device in the UE (such as a processor, a chip, or a chip system, etc.); or, Figure 2 The first transceiver device in Figure 3 can also be the access point in Figure 1 or can refer to a device in the access point (such as a processor, a chip, or a chip system, etc.). Exemplarily, Figure 2 The second transceiver device in Figure 3 can be the base station in Figure 1 or Figure 2 the base station in Figure 3 or can refer to a device in the base station (such as a processor, a chip, or a chip system, etc.). Exemplarily, Figure 3 The third transceiver device in

[0105] S310, the second transceiver device sends a first message to the first transceiver device, and 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.

[0106] Among them, the first carrier is the carrier on which the first transceiver device sends control information; the second carrier is the carrier on which the second transceiver device sends data information and / or reference signals. It can be understood that the second carrier may include one or more carriers, and no specific limitation is made thereto.

[0107] Optionally, the first message includes first carrier indication information, where the second carrier is predefined or selected by the second transceiver device itself; or, the first message includes second carrier indication information, where the first carrier is predefined or selected by the second transceiver device itself; or, the first message includes first carrier indication information and second carrier indication information.

[0108] Optionally, 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 a carrier indication field, 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).

[0109] Optionally, the second transceiver device may configure information of multiple 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 media access control control element (MAC CE). Or, optionally, the multiple carrier set groups may be predefined. Among them, each carrier set group in the multiple carrier set groups includes one or more of the following carriers: a carrier for transmitting control information, a carrier for transmitting data information, and a carrier for transmitting feedback control information. The first message sent by the second transceiver device to the first transceiver device may include an index of a carrier set group. Exemplarily, the first message includes a first index, and the first index is used to identify a carrier set group (or referred to as a carrier set), and the carrier set group includes one or more of the following carriers: the first carrier, the second carrier, and the third carrier. The first transceiver device may select the carrier set group corresponding to the first identifier from multiple sets of carriers according to the first index, and perform transmission of control information, data information, and feedback information on the corresponding carrier.

[0110] Optionally, the first carrier may be predefined, or may be configured by the second transceiver device through higher layer signaling, or may be the carrier at the time of initial access of the first transceiver device. Here, the first message sent by the second transceiver device to the first transceiver device may only include second carrier indication information. The second carrier indication information is used to indicate the carrier for transmitting data information, that is, the second carrier.

[0111] Optionally, the first message may further include a first carrier handover indication for the first transceiver device to hand over from the first carrier to the second carrier when transmitting data information to the third transceiver device. Here, the first message may not include the second carrier indication information, but instead, through the first carrier handover indication, inform the first transceiver device to hand over from the first carrier to the second carrier when transmitting data information. Here, the second carrier may be predefined or configured by the second transceiver device through higher layer signaling. For example, the first message is DCI, and the DCI includes a carrier handover indication field for indicating whether to perform carrier handover when transmitting data information. For example, the carrier handover indication field contains one bit, which indicates carrier handover when the bit is 1 and indicates no carrier handover when the bit is 0; or, the bit indicates carrier handover when it is 0 and indicates no carrier handover when it is 1.

[0112] Optionally, before receiving the first message from the second transceiver device, the first transceiver device may send a buffer status report (BSR) to the second transceiver device. Among them, the BSR is used to indicate the size of the data volume waiting to be sent to the third transceiver device in the buffer of the first transceiver device. The second transceiver device may allocate a carrier and resources for the first transceiver device with reference to the BSR. Here, the indication related to the carrier and resources allocated by the second transceiver device for the first transceiver device may be indicated in the first message.

[0113] Optionally, before receiving the first message from the second transceiver device, the first transceiver device sends a request message to the second transceiver device, and the request message is used to request the carrier for transmitting control information or data information. That is, the first transceiver device may actively request the carrier for transmitting control information and / or the carrier for transmitting data information from the second transceiver device. Correspondingly, the second transceiver device receives the request message. The second transceiver device may decide to allocate a carrier for the first transceiver device according to the request message. For example, after receiving the request message, the second transceiver device carries an indication about the carrier in the first message.

[0114] Optionally, the first message may include first resource indication information and / or second resource indication information. The first resource indication information is used to indicate the resources occupied by the first transceiver device when sending the first control information. The second resource indication information is used to indicate the resources occupied by the first transceiver device when sending data information. Optionally, the first message may further include third resource indication information. The third resource indication information is used to indicate the resources used by the first transceiver device when receiving feedback control information from the third transceiver device. Optionally, the feedback control information may be feedback information of the third transceiver device for data information transmitted on the second carrier. The feedback control information may include HARQ feedback information or channel state information (CSI) measurement results. The HARQ feedback information includes HARQ ACK / NACK.

[0115] S320, the first transceiver device sends first control information to the third transceiver device on the first carrier, and 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.

[0116] Optionally, the first control information may be control information carried on the physical layer. For example, the first control information is sidelink control information (SCI).

[0117] Among them, the first control information is used to indicate to the third transceiver device the carrier for sending data information, that is, the second carrier. The first control information is used to indicate 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, the second carrier is indicated by means of a carrier switching indication.

[0118] Optionally, the first control information may include a carrier indication field for indicating the carrier (i.e., the second carrier) for the third transceiver device to receive data information.

[0119] Optionally, assuming that the first transceiver device also uses the first carrier to receive feedback control information from the third transceiver device, that is, the carrier for the first transceiver device to send the first control information is the same as the carrier for receiving feedback control information from the third transceiver device, the first control information may further include a carrier indication field for indicating the carrier (i.e., the first carrier) for the third transceiver device to send feedback control information.

[0120] Optionally, the first control information may not indicate the carrier (e.g., the third carrier) for the third transceiver to send feedback control information. The third transceiver may use the carrier at the time of initial access, or a predefined carrier, or a carrier configured by higher layer signaling to send the feedback control information.

[0121] Optionally, the second transceiver may configure information of multiple carrier set groups for the first transceiver and the third transceiver through higher layer signaling. For example, the higher layer signaling is radio resource control (RRC) signaling or media access control control element (MAC CE). Alternatively, the multiple carrier set groups may be predefined. Alternatively, the third transceiver may receive information of multiple carrier set groups from the first transceiver. If the first message includes a first index for indicating a carrier set group, correspondingly, the first control information sent by the first transceiver to the third transceiver for indicating a second carrier includes: a second index is included in the first control information, and the second index indicates the second carrier in the carrier set group, or the second index indicates the second carrier and the third carrier in the carrier set group. Through the second index, the third transceiver can know the carrier (i.e., the second carrier) for receiving data information; or through the second index, the third transceiver can know the carriers (i.e., the second carrier and the third carrier) for receiving data information and sending feedback control information.

[0122] It can be understood that in the embodiments of the present application, the third transceiver may send feedback control information to the first transceiver or to the second transceiver, and no specific limitation is made thereto.

[0123] Optionally, the first control information includes a second carrier switching indication for indicating that the third transceiver switches from the first carrier to the second carrier when receiving data. Here, the first control information may not include second carrier indication information, but instead, through the second carrier switching indication, the third transceiver is informed to switch from the first carrier to the second carrier when receiving data information. For example, the first control information is SCI, and the SCI includes a carrier switching indication field for indicating whether the third transceiver performs carrier switching when receiving data. For example, the carrier switching indication field contains one bit, and when this bit is 1, it indicates carrier switching, and when this bit is 0, it indicates no carrier switching; or when this bit is 0, it indicates carrier switching, and when this bit is 1, it indicates no carrier switching. The third transceiver may decide whether to switch from the first carrier to the second carrier based on the value of this bit.

[0124] Optionally, the first control information may further include fourth resource indication information for indicating the resources occupied by the data information. The third transceiver device may use the resources indicated by the fourth resource indication information to receive the data information.

[0125] Optionally, the first control information may further include fifth resource indication information for indicating the resources occupied by the feedback control information. The third transceiver device may use the resources indicated by the fifth resource indication information to send the feedback control information.

[0126] Optionally, the content included in the first control information above (such as the carrier indication field, carrier handover indication, fourth resource indication information, fifth resource indication information, etc.) may be determined by the first transceiver device according to the corresponding content included in the received first message. For example, if the first message includes second carrier indication information (the second carrier indication information is used to indicate a second carrier), the first transceiver device may include, in the first control information, a carrier indication field for indicating the second carrier according to the second carrier indication information included in the first message.

[0127] S330, the first transceiver device sends data information to the third transceiver device on a second carrier, where the first carrier is different from the second carrier, and a sidelink transmission exists 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.

[0128] For example, it is assumed 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.

[0129] In the embodiments of the present application, the first transceiver device sends the first control information on the first carrier and sends the data information on the second carrier, where the first carrier is different from the second carrier. That is, the first transceiver device may send the first control information and the data information on different carriers. Compared with the prior art in which the control information and the data information are sent on the same carrier and are limited by the cycle of transceiver switching, the embodiments of the present application schedule different carrier spectrums for transmission, ensuring large-bandwidth transmission while meeting the low-latency requirement.

[0130] Optionally, the first transceiver device may also send a reference signal on the second carrier and receive the feedback control information from the third transceiver device on the first carrier. That is to say, the first transceiver device may reuse the first carrier to receive the feedback control information, that is, the carrier used for transmitting the first control information is the same as the carrier used for transmitting the feedback control information.

[0131] Optionally, the first message may further include third carrier indication information for indicating a third carrier. For example, the DCI includes a third carrier indication field (i.e., the third carrier indication information). Wherein, the first control information is further used to indicate the third carrier. Optionally, the method 300 further includes: S340, the third transceiver device sends feedback control information to the first transceiver device on the third carrier. Correspondingly, the first transceiver device receives the feedback control information from the third transceiver device on the third carrier. That is to say, the third carrier can be introduced here to transmit the feedback control information.

[0132] For example, assume that the first message includes first carrier indication information, second carrier indication information, and third carrier indication information. The first transceiver device sends the first control information to the third transceiver device on the first carrier, sends data information and / or reference signals to the third transceiver device on the second carrier, and receives the feedback control information from the third transceiver device on the third carrier according to the carrier indication information included in the first message.

[0133] In the embodiments of the present application, the second transceiver device may schedule the multi-carrier transmission between the first transceiver device and the third transceiver device through the first message. For a scenario where the services in two transmission directions between the first transceiver device and the third transceiver device are asymmetric, for example, the first transceiver device needs to send a large amount of data to the third transceiver device, and the third transceiver device only needs to send small-flow information such as feedback control information to the first transceiver device. The second transceiver device schedules the transmissions in two directions to use different carriers through the first message. For example, the node with a relatively large traffic volume is scheduled to use a high-frequency and large-bandwidth carrier, and there is no need to differentially allocate time resources in the two-way transmission direction on one carrier, avoiding the transmission delay being severely limited by the transceiver switching cycle, and meeting the low-latency requirement while ensuring large-bandwidth transmission.

[0134] As described above, the first transceiver device may send data information to the third transceiver device on the second carrier. In fact, the first transceiver device may also send control information for scheduling the data information 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, and the second control information is used to schedule the data information. Here, the second control information is used to schedule the data information sent on the second carrier. That is to say, the first transceiver device may send the second control information and the data information to the third transceiver 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.

[0135] Optionally, the second control information may include sixth resource indication information. The sixth resource indication information is used to indicate the resources occupied by the data information.

[0136] Optionally, the second control information may be carried in the physical layer control information. For example, the second control information is the SCI.

[0137] Optionally, the second control information may include the seventh resource indication information. The seventh resource indication information is used to indicate the resources occupied by the third transceiver device when sending feedback control information. Optionally, the feedback control information may be feedback information for the data information transmitted on the second carrier.

[0138] Of course, for the case where the first transceiver device sends the second control information and data information to the third transceiver device on the second carrier, the above descriptions of the first message and the first control information still apply, as long as the description of the second control information is added. For the descriptions of the first message and the first control information, reference may be made to the foregoing. For ease of understanding, examples will be described below.

[0139] Specifically, for example, the first carrier indication information included in the first message is used to indicate the carrier on which the first transceiver device sends the first control information to the third transceiver device, that is, the first carrier; the second carrier indication information included in the first message is used to indicate the carrier on which the first transceiver device sends the second control information and data information to the third transceiver device, that is, the second carrier. Of course, the first message may further include the above-mentioned third carrier indication information, and the third carrier indication information is used to indicate the carrier on which the first transceiver device receives the feedback control information from the third transceiver device.

[0140] Specifically, for example, the first carrier switching indication included in the first message is used to indicate that the first transceiver device switches from the first carrier to the second carrier when sending the second control information and data information to the third transceiver device. Here, the second carrier may be pre-defined or configured by the second transceiver device through higher layer signaling.

[0141] Specifically, for example, the second resource indication information included in the first message is used to indicate the resources occupied by the first transceiver device when sending the second control information and data information to the third transceiver device.

[0142] Specifically, for example, the first control information is used to indicate the carrier on which the first transceiver device sends the second control information and data information to the third transceiver device, that is, the second carrier.

[0143] Specifically, for example, the second carrier switching indication included in the first control information is used to indicate that the third transceiver device switches from the first carrier to the second carrier when receiving the second control information and data information.

[0144] In the embodiments of the present application, by transmitting the second control information and data information on the second carrier, it is possible to enable the third transceiver device to 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. In this way, in the case of needing to continuously transmit multiple data, there is no need to first receive scheduling information on the first carrier and then switch to the second carrier to receive data information. Instead, it is only necessary to receive scheduling information and data information on one carrier, avoiding frequent carrier switching.

[0145] In the above description, the third transceiver device learns the indications of each carrier through the first transceiver device. Optionally, as an embodiment, the third transceiver device can also directly obtain information about the carrier from the second transceiver device. That is to say, the second transceiver device can not only send the first message to the first transceiver device to schedule multi-carrier transmission between the first transceiver device and the third transceiver device, but also directly send the first message to the third transceiver device to schedule multi-carrier transmission between the first transceiver device and the third transceiver device.

[0146] Optionally, the method 300 further includes: S360, the second transceiver device sends the first message to the third transceiver device. Correspondingly, the third transceiver device receives the first message from the second transceiver device. The description of the first message can refer to the previous description. For the sake of brevity, it will not be elaborated here. That is to say, the second transceiver device can directly send information about the carrier to the first transceiver device or directly send information about the carrier to the third transceiver device. Whether it is the first transceiver device or the third transceiver device, it can perform transmission on the corresponding carrier according to the information about the carrier sent by the second transceiver device. For example, the first transceiver device sends the first control information on the first carrier, sends data information on the second carrier, and receives feedback control information on the third carrier. Another example is that the third transceiver device receives the first control information on the first carrier, receives data information on the second carrier, and sends feedback control information on the third carrier.

[0147] It can be understood that only the first message is used as an example for description here, which does not limit the embodiments of the present application. In fact, the second transceiver device can schedule the first transceiver device and the third transceiver device to perform transmission on multiple carriers through one control message; and can also schedule the first transceiver device and the third transceiver device to perform transmission on multiple carriers through another control message.

[0148] Optionally, before receiving the first message sent by the second transceiver device, the third transceiver device may send a request for retransmission message to the second transceiver device. The request for retransmission message is used to request retransmission by the first transceiver device, so that the second transceiver device can allocate carriers and resources for retransmission. The second transceiver device may indicate the carriers and resources for retransmission through the first message.

[0149] Exemplarily, the first message sent by the second transceiver device to the third transceiver device may include second carrier indication information and third carrier indication information. The second carrier indication information is used to indicate the carrier for the third transceiver device to receive data information and / or reference signals from the first transceiver device, that is, the second carrier. The third carrier indication information is used to indicate the carrier for the third transceiver device to send feedback control information to the first transceiver device.

[0150] Exemplarily, the first message sent by the second transceiver device to the third transceiver device may include a third carrier switching indication, and the third carrier switching indication is used to indicate that the third transceiver device switches 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 includes: the third transceiver device receiving data information from the first transceiver device on the second carrier according to the third carrier indication information. That is to say, the third transceiver device can obtain the second carrier through the first message sent by the second transceiver device and receive data information from the first transceiver device on the second carrier.

[0151] Exemplarily, the first message sent by the second transceiver device to the third transceiver device may include a first index, and the first index is used to indicate a carrier set group, and the carrier set group includes the first carrier, the second carrier, and the third carrier; the first control information for indicating the second carrier includes: the first control information includes a second index, and the second index indicates the second carrier in the carrier set group, or the second index indicates 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 to obtain the carrier set group identified by the first index; then, according to the second index in the first control information, the second carrier, or the second carrier and the third carrier, is obtained in the carrier set group.

[0152] In each of the above embodiments, optionally, the first control information or the first message may further include semi-persistent scheduling (SPS) configuration information to implement semi-static scheduling transmission between the first transceiver device and the third transceiver device. It can be understood that the SPS configuration information may also be sent through other messages, which is not limited herein.

[0153] Optionally, the first message includes semi-static scheduling (SPS) configuration information, and the SPS configuration information includes transmission period indication information; wherein, S320 includes: based on the transmission period indicated by the transmission period indication information, the first transceiver device sends first control information to the third transceiver device on the first carrier every other transmission period, and the first control information includes the transmission period indication information; wherein, S330 includes: based on the transmission period indicated by the transmission period indication information, the first transceiver device sends data information to the third transceiver device on the second carrier every other transmission period.

[0154] The transmission period indicated by the transmission period indication information includes the time interval of semi-static transmission. That is, the first transceiver device sends the first control information to the third transceiver device on the first carrier every other transmission period, and sends data information to the third transceiver device on the second carrier.

[0155] Optionally, the SPS configuration information may further include other semi-static scheduling parameters, which are not limited herein.

[0156] Optionally, the first message may further include an indication field for indicating SPS activation or release.

[0157] Taking the first message as DCI as an example, the DCI may include SPS configuration information, and carrier information and / or resource information indicated (or allocated) by the second transceiver device. After receiving the DCI containing the SPS configuration information, the first transceiver device may periodically reuse the carrier information and / or resource information indicated in the DCI to send control information and data information, or receive feedback control information.

[0158] For the case where the DCI includes SPS configuration information, a possible implementation is as follows: The cyclic redundancy check (CRC) of the DCI is scrambled with a radio network temporary identifier (RNTI), such as the X-RNTI. The X-RNTI has an identifier for semi-static scheduling and can be included in the SPS configuration information. The X-RNTI can be configured by the second transceiver to the first transceiver through high-layer signaling (such as RRC signaling). For example, the X-RNTI can be a semi-persistent scheduling cell-radio network temporary identifier (SPS-C-RNTI), or a sidelink semi-static radio network identifier, such as a sidelink semi-persistent scheduling vehicle-radio network temporary identifier (SL-SPS-V-RNTI), or a newly defined RNTI. The DCI can include a field indicating the configuration index of the SPS. Among them, the SPS configuration information and the configuration index of the SPS can be configured by the second transceiver to the first transceiver through high-layer signaling. Optionally, the DCI can also include an indication field for indicating the activation or release of the SPS. In this way, after receiving the DCI, the first transceiver can know whether the DCI is for the activation of the SPS or the release of the SPS.

[0159] For example, when the first transceiver receives a DCI scrambled with the X-RNTI, it can consider that the DCI is an activation signaling for semi-static scheduling transmission. Or, after receiving a DCI scrambled with the above X-RNTI, the first transceiver detects that the SPS activation / release indication field in the DCI indicates SPS activation, and then the first transceiver considers that the DCI is an activation signaling for semi-static scheduling transmission. Then, the first transceiver periodically performs information transmission with the third transceiver on the carrier and / or resources allocated or indicated by the DCI according to the SPS configuration information indicated in the DCI.

[0160] For the case where the DCI includes SPS configuration information, another possible implementation is that the DCI includes an indication field for explicitly indicating the SPS identity. After receiving the DCI, the first transceiver device may, based on the indication field for explicitly indicating the SPS identity, identify whether it is semi-static scheduling. For example, the indication field in the DCI for explicitly indicating the SPS identity includes a bit. When the bit is 0, it indicates dynamic scheduling or non-semi-static scheduling, and when the bit is 1, it indicates semi-static scheduling. Optionally, the DCI may further include an indication field for indicating the transmission period. The first transceiver device may perform information transmission with the third transceiver device based on the transmission period indicated by the indication field for indicating the transmission period.

[0161] For example, assume that the DCI includes carrier indication information, resource indication information, an indication field for explicit SPS identity (with a bit value of 1), and an indication field for indicating the transmission period. The first transceiver device performs information transmission on the carrier and resource indicated in the DCI every time the transmission period indicated in the DCI elapses.

[0162] Optionally, the first control information may include semi-static scheduling SPS configuration information. The SPS configuration information includes transmission period indication information. The SPS configuration information is used to instruct the third transceiver device to perform one or more of the following operations based on the transmission period indication information: receive the data information and / or the second control information on the second carrier every time the transmission period indicated by the transmission period indication information elapses, and send 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 to facilitate the semi-static scheduling of the transmission of the third transceiver device. It can be understood that after receiving the first control information including the SPS configuration information, the third transceiver device may periodically reuse the carrier information and / or resource information indicated in the first control information to send data information or feedback control information according to the carrier information (such as the second carrier) and / or resource information indicated in the first control information.

[0163] Taking the first control information as the SCI as an example, the SCI may include SPS configuration information, as well as carrier information and / or resource information indicated (or allocated) by the first transceiver device. After receiving the SCI including the SPS configuration information, the third transceiver device may periodically reuse the carrier information and / or resource information indicated in the SCI to send control information and data information, or receive feedback control information.

[0164] For the case where the SCI includes SPS configuration information, a possible implementation is as follows: The cyclic redundancy check (CRC) of the SCI is scrambled using the X-RNTI. This X-RNTI has a semi-static scheduling identity and can be included in the SPS configuration information. This X-RNTI can be configured by the second transceiver to the third transceiver through high-layer signaling (e.g., RRC signaling). For example, this X-RNTI can be a semi-static cell radio network identity (SPS-C-RNTI) or an SL-SPS-V-RNTI or a newly defined RNTI. The SCI can include a field indicating the configuration index of the SPS. Among them, the SPS configuration information and the configuration index of the SPS can be configured by the second transceiver to the third transceiver through high-layer signaling. Optionally, the SCI can also include an indication field for indicating the activation or release of the SPS. In this way, after receiving the SCI, the third transceiver can know whether the SCI is for the activation of the SPS or the release of the SPS.

[0165] For example, when the third transceiver receives an SCI scrambled with the X-RNTI, it can consider that the SCI is an activation signaling for semi-static scheduling. Or, after receiving the SCI scrambled with the above X-RNTI, the third transceiver detects that the SPS activation / release indication field in the SCI indicates SPS activation, and then the third transceiver considers that the SCI is an activation signaling for semi-static scheduling. Then, the third transceiver performs information transmission with the first transceiver periodically on the carrier and / or resource allocated or indicated by the SCI according to the SPS configuration information indicated in the SCI.

[0166] For the case where the SCI includes SPS configuration information, another possible implementation is as follows: The SCI includes an indication field for explicitly indicating the SPS identity. After receiving the SCI, the third transceiver can identify whether it is semi-static scheduling based on this indication field for explicitly indicating the SPS identity. For example, the indication field for explicitly indicating the SPS identity in the SCI includes a bit. When this bit takes 0, it represents dynamic scheduling or non-semi-static scheduling, and when this bit takes 1, it represents semi-static scheduling. Optionally, the SCI can also include an indication field for indicating the transmission period. The third transceiver can perform information transmission with the first transceiver based on the transmission period indicated by this indication field for indicating the transmission period.

[0167] For example, assume that the SCI includes carrier indication information, resource indication information, an indication field for explicit SPS identity (bit value is 1), and an indication field for indicating the transmission period. The third transceiver performs information transmission on the carrier and resource indicated in the SCI every other such transmission period according to the transmission period indicated in the SCI.

[0168] In the embodiments of the present application, by introducing SPS configuration information, it is possible to make control messages (such as the first message or the first control information) valid throughout the semi-static scheduling period until the semi-static scheduling is released, so that it is not necessary to transmit control messages before each data transmission, which helps to save resource overhead.

[0169] Optionally, the method 300 further includes: a third transceiver device obtains discontinuous reception (DRX) configuration information; and performs discontinuous reception based on the DRX configuration information.

[0170] Here, the third transceiver device may receive the DXR configuration information from the first transceiver device or the second transceiver device. The third transceiver device performs discontinuous reception based on the DRX configuration information. For example, the third transceiver device receives the first control information from the first transceiver device based on the DRX configuration information, and receives data information from the first transceiver 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 DRX configuration information.

[0171] Optionally, the DRX configuration information includes one or more of the following information: receive carrier indication, receive resource indication, discontinuous reception period, long discontinuous reception period, short discontinuous reception period, duration, first timer, second timer, connection indication, paging indication, etc. Among them, the receive carrier indication is used to indicate the carrier used by the third transceiver device to receive information; the receive resource indication is used to indicate the resource for the third transceiver device to receive information; the discontinuous reception period, long discontinuous reception period, and short discontinuous reception period all specify the periodic repetition of the sleep period after the start duration; the duration is used to indicate the duration for the third transceiver device to perform DRX (i.e., listen for control messages and receive data); the first timer is used to indicate the timing for the third transceiver device to trigger entry into DRX; the second timer is used to indicate the timing for the third transceiver device to release DRX; the connection indication is used to indicate whether the third transceiver device maintains a connection with the first transceiver device; the paging indication is used to indicate paging information.

[0172] The third transceiver device performs discontinuous reception based on the above DRX configuration information. For the third transceiver device, it can enter the sleep state during the non-duration period and no longer listen for the control information sent by the first transceiver device, effectively reducing the power consumption of the third transceiver device and improving the battery usage time.

[0173] 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 can also independently select a carrier, which will be described below.

[0174] The present application provides another method for information transmission: the first transceiver device obtains carrier set configuration information, and multiple carriers are indicated in the carrier set configuration information; the first transceiver device selects a first carrier and / or a second carrier from the multiple carriers according to a preset condition; the first transceiver device sends first control information to a third transceiver device on the first carrier, and the first control information is used to indicate the second carrier; the first transceiver device sends data information to the third transceiver device on the second carrier, and the first carrier is different from the second carrier.

[0175] Correspondingly, the third transceiver device receives the first control information from the first transceiver device on the first carrier, and the first control information is used to indicate the second carrier; the third transceiver device receives the data information from the first transceiver device on the second carrier.

[0176] Optionally, the carrier set configuration information is all the carriers available for communication between the first transceiver device and the third transceiver device. For example, the carrier set configuration information can be used for the first transceiver device to select the carriers for sending control information and data information, and can also be used for the first transceiver device to select the carriers for receiving feedback control information. For another example, the carrier set configuration information is used for the first transceiver device to only select the carriers for sending data information, wherein the carriers for the first transceiver device to receive feedback control information or send control information use pre-configured carriers or predefined carriers. For another example, the carrier set configuration information is used for the first transceiver device to select the carriers for sending control information and data information, wherein the first transceiver device uses pre-configured carriers or predefined carriers to receive feedback control information. For another example, the carrier configuration information can also respectively include a sending carrier set configuration information and a receiving carrier set configuration information, wherein the sending carrier set configuration information is used for the first transceiver device to select the carriers for sending therefrom, and the receiving carrier set configuration information is used for the first transceiver device to select the carriers for receiving therefrom.

[0177] Optionally, the above carrier set configuration information can be predefined or can be configured by a second transceiver device through RRC signaling or MAC CE, and this is not limited.

[0178] Optionally, the preset condition can include one or more of the following conditions: the traffic volume of the first transceiver device meets a preset condition, and the channel quality indication value meets a preset condition. The traffic volume of the first transceiver device refers to the size of the traffic volume of the data sent by the first transceiver device. The channel quality indication value is used to represent the channel quality between the first transceiver device and the third transceiver device. That is to say, the first transceiver device can select the carriers that meet the conditions according to information such as the traffic volume and / or channel quality of the first transceiver device.

[0179] Optionally, the traffic volume of the first transceiver device meeting the preset condition means that the traffic volume sent by the first transceiver device meets the first mapping relationship, and the first mapping relationship includes the correspondence between the traffic volume and the carrier. That is to say, the first mapping relationship may include the correspondence between each carrier and the corresponding traffic volume 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 less than the first traffic volume threshold, the first transceiver device selects the first carrier to send data information; when the traffic volume sent by the first transceiver device is greater than or equal to the first traffic volume threshold, the first transceiver device selects the second carrier to send data information and selects the first carrier to receive feedback control information.

[0180] Optionally, the channel quality indication value meeting the preset condition means that the channel quality indication value meets the second mapping relationship, and the second mapping relationship includes the correspondence between the carrier and the channel quality value. That is to say, the second mapping relationship includes the correspondence between each carrier and the corresponding channel quality value. Optionally, the channel quality value may be represented by a channel quality indication (CQI) value or a CQI interval. The following describes the second mapping relationship with an example in Table 1. Table 1 takes the correspondence between the CQI interval (the CQI interval can be identified by a CQI index) and the carrier index as an example for illustration.

[0181] Table 1

[0182] CQI Index Carrier index (12,15] Carrier 0 (9,12] Carrier 1 (6,9] Carrier 2 (3,6] Carrier 3 … …

[0183] For example, if the CQI value of the first transceiver device and the third transceiver device is in the interval (12, 15], by looking up Table 1 above, the first transceiver device selects carrier 0 to send data information.

[0184] It can be understood that Table 1 above is only an exemplary description and does not limit the embodiments of the present application. In fact, there may be other possibilities for the CQI index and / or carrier index in Table 1, which are not limited herein.

[0185] It can be understood that the first transceiver device may select one or more carriers to transmit data information. There is no limit to the number of selected carriers here.

[0186] Optionally, the basis for the first transceiver device to select a carrier, that is, the preset condition, such as the first mapping relationship, the second mapping relationship, threshold information (traffic volume threshold or channel quality interval), may be predefined or configured by the second transceiver device through RRC signaling or MAC CE, which is not specifically limited herein.

[0187] Optionally, the first carrier selected by the first transceiver device can also be used to receive feedback control information from the third transceiver device, and there is no specific limitation on this. Alternatively, the first transceiver device can also select a third carrier and receive feedback control information from the third transceiver device on the third carrier. Correspondingly, the third transceiver device sends feedback control information on the third carrier.

[0188] Optionally, the first transceiver device can send second control information to the third transceiver device on the second carrier, and the second control information is used to schedule data information. For the specific description of "the first transceiver device sends second control information to the third transceiver device on the second carrier", reference can be made to the description of the foregoing embodiments. For the sake of brevity, it will not be elaborated here.

[0189] It can be understood that, in the embodiments of the present application, optionally, the first control information may also include a carrier switching indication, and the carrier switching indication is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data. For the specific description of the first control information including the carrier switching indication, reference can be made to the description of the foregoing embodiments. For the sake of brevity, it will not be elaborated here.

[0190] It can be understood that, in the embodiments of the present application, optionally, the first control information for indicating the second carrier includes: a second index is included in the first control information, and the second index indicates the second carrier among the multiple carriers, or the second index indicates the second carrier and the third carrier among the multiple carriers. For the specific description of the first control information including the second index, reference can be made to the description of the foregoing embodiments. For the sake of brevity, it will not be elaborated here.

[0191] In the embodiments of the present application, the first transceiver device can independently select the 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 can select different carriers for transmission in two directions. For example, a high-frequency and large-bandwidth carrier is used to schedule the node with a relatively large traffic volume for sending, and there is no need to differentially allocate time resources in the two-way transmission direction on one carrier, avoiding the transmission delay being severely limited by the transceiver switching cycle, and being able to meet the low-delay requirement while ensuring large-bandwidth transmission.

[0192] It should be understood that the various solutions in the embodiments of the present application can be reasonably combined and used, and the explanations or descriptions of the various terms appearing in the embodiments can be referred to or explained with each other in the various embodiments, and there is no limitation on this.

[0193] It should also be understood that in various embodiments of the present application, the magnitudes of the serial numbers of the above processes do not imply the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic. The various numerical numbers or serial numbers involved in the above processes are only for the convenience of description and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0194] Corresponding to the method given in the above method embodiment, the embodiment of the present application also provides a corresponding device, and the device includes a module for executing the corresponding one of the above embodiments. The module can be software, hardware, or a combination of software and hardware. It can be understood that the technical features described in the method embodiment also apply to the following device embodiments.

[0195] Figure 4 is a schematic block diagram of a communication device provided by an embodiment of the present application. As Figure 4 shown, the communication device 1000 may include a transceiver unit 1100 and a processing unit 1200.

[0196] In a possible design, the communication device 1000 may correspond to the first transceiver device in the above method embodiment. For example, it may be a terminal device or a chip configured in a terminal device.

[0197] Specifically, the communication device 1000 may correspond to the first transceiver device in method 300 according to the embodiment of the present application. The communication device 1000 may include a unit for executing Figure 3 the method executed by the first transceiver device in method 300. And, each unit in the communication device 1000 and the above other operations or functions respectively implement Figure 3 the corresponding processes of the first transceiver device in method 300.

[0198] In one implementation, the transceiver unit 1100 may be configured to: receive 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; send first control information on the first carrier to a third transceiver device, the first control information is used to indicate the second carrier; send data information on the second carrier to the third transceiver device, where the first carrier is different from the second carrier, and a sidelink transmission exists between the third transceiver device and the first transceiver device.

[0199] Optionally, the transceiver unit 1100 is further configured to send second control information on the second carrier to the third transceiver device, and the second control information is used to schedule the data information.

[0200] Optionally, the first message further includes third carrier indication information for indicating a third carrier. 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.

[0201] Optionally, the transceiver unit 1100 is further configured to receive feedback control information from the third transceiver device on the first carrier.

[0202] Optionally, the first message further includes a first index for identifying a carrier set group, where the carrier set group includes one or more of the following: the first carrier, the second carrier, and the third carrier;

[0203] The first control information for indicating the second carrier includes: the first control information includes a second index, where the second index indicates the second carrier in the carrier set group, or the second index indicates the second carrier and the third carrier in the carrier set group.

[0204] Optionally, the first message further includes a first carrier handover indication for the first transceiver device to hand over from the first carrier to the second carrier when sending data information to the third transceiver device;

[0205] The first control information for indicating the second carrier includes: the first control information includes a second carrier handover indication for indicating that the third transceiver device hands over from the first carrier to the second carrier when receiving data information.

[0206] 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.

[0207] Optionally, the first message includes semi-persistent scheduling (SPS) configuration information, where the SPS configuration information includes transmission period indication information; where the transceiver unit 1100 is configured to send first control information to the third transceiver device on the first carrier, including: sending first control information to the third transceiver device on the first carrier at intervals of the transmission period indicated by the transmission period indication information, where the first control information includes the transmission period indication information; where the transceiver unit 1100 is configured to send data information to the third transceiver device on the second carrier, including: sending data information to the third transceiver device on the second carrier at intervals of the transmission period indicated by the transmission period indication information.

[0208] Optionally, the first control information includes semi-static scheduling (SPS) configuration information. The SPS configuration information includes transmission period indication information, and is used to instruct the third transceiver device to perform one or more of the following operations based on the transmission period indication information: receive the data information and / or second control information on the second carrier every other transmission period indicated by the transmission period indication information, and send feedback control information on the third carrier.

[0209] Optionally, the second carrier includes one or more carriers.

[0210] Alternatively, in another implementation, the transceiver unit 1100 and the processing unit 1200 may be respectively used for:

[0211] The transceiver unit 1100 is used for: obtaining carrier set configuration information, where the carrier set configuration information indicates multiple carriers.

[0212] The processing unit 1200 is used for: selecting a first carrier and / or a second carrier from the multiple carriers according to a preset condition.

[0213] The transceiver unit 1100 is further used for: sending first control information to the 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, where the first carrier is different from the second carrier.

[0214] Optionally, the preset condition includes one or more of the following conditions: the traffic volume of the first transceiver device meets a preset condition, and the channel quality indication value meets a preset condition.

[0215] Optionally, that the traffic volume of the first transceiver device meets a preset condition means that: the traffic volume sent by the first transceiver device meets a first mapping relationship, and the first mapping relationship includes the corresponding relationship between the traffic volume and the carrier.

[0216] Optionally, that the channel quality indication value meets a preset condition means that: the channel quality indication value meets a second mapping relationship, and the second mapping relationship includes the corresponding relationship between the carrier and the channel quality value.

[0217] Optionally, the first control information includes a carrier switching indication, and the carrier switching indication is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data.

[0218] Optionally, the transceiver unit 1100 is further used for: sending second control information to the third transceiver device on the second carrier, where the second control information is used to schedule the data information.

[0219] 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 used to indicate the third carrier.

[0220] Optionally, the first control information is used to indicate the second carrier, including: the first control information includes a second index, and the second index indicates the second carrier among the multiple carriers, or the second index indicates the second carrier and the third carrier among the multiple carriers.

[0221] It should be understood that the specific processes for each unit to execute the corresponding steps above have been described in detail in the above method embodiments. For the sake of brevity, they will not be repeated here.

[0222] It should also be understood that when the communication device 1000 is a terminal device, the transceiver unit 1100 in the communication device 1000 may correspond to Figure 5 the transceiver 2020 in the terminal device 2000 shown in Figure 5 and the processing unit 1200 in the communication device 1000 may correspond to

[0223] the processor 2010 in the terminal device 2000 shown in

[0224] Optionally, the communication device 1000 further includes a storage unit, which can be used to store instructions or data. The processing unit can call the instructions or data stored in the storage unit to implement corresponding operations. The storage unit can be implemented by at least one memory, for example, it can correspond to Figure 5 the memory 2030 in the terminal device 2000 shown in

[0225] In another possible design, the communication device 1000 may correspond to the third transceiver device in the above method embodiment. For example, it may be a terminal device or a chip configured in a terminal device.

[0226] Specifically, the communication device 1000 may correspond to the third transceiver device in method 300 according to the embodiments of the present application. The communication device 1000 may include units for executing Figure 3 the method executed by the third transceiver device in method 300. And each unit in the communication device 1000 and the above other operations or functions respectively are for implementing Figure 3 the corresponding processes of the third transceiver device in method 300.

[0227] In one implementation, the transceiver unit 1100 can be used to: receive first control information sent from a first transceiver device on a first carrier, where the first control information is used to indicate a second carrier; receive data information from the first transceiver device on the second carrier, where the first carrier is different from the second carrier, and where side-chain transmission is performed between the third transceiver device and the first transceiver device; where the first carrier is determined by the first transceiver device by receiving a first message from a second transceiver device, and the first message includes first carrier indication information for indicating the first carrier; and / or, the second carrier is determined by the first transceiver device by receiving the first message from the second transceiver device, and the first message includes second carrier indication information for indicating the second carrier.

[0228] Optionally, the transceiver unit 1100 is further used 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.

[0229] Optionally, the transceiver unit 1100 is further used 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.

[0230] Optionally, the transceiver unit 1100 is further used to send feedback control information to the first transceiver device or the second transceiver device on the first carrier.

[0231] Optionally, the first control information includes a second carrier switching indication for indicating that the third transceiver device switches from the first carrier to the second carrier when receiving data; the transceiver unit 1100 is used to receive data information from the first transceiver device on the second carrier, including: receiving data information from the first transceiver device on the second carrier according to the second carrier switching indication.

[0232] Optionally, the transceiver unit 1100 is further used to receive the first message from the second transceiver device.

[0233] Optionally, the first message includes a third carrier switching indication for indicating that the third transceiver device switches from the first carrier to the second carrier when receiving data; the transceiver unit 1100 is used to receive data information from the first transceiver device on the second carrier, including: receiving data information from the first transceiver device on the second carrier according to the third carrier indication information.

[0234] Optionally, the first message further includes a first index, which is used to indicate a carrier set group, and the carrier set group includes the first carrier, the second carrier, and the third carrier; the first control information is used to indicate the second carrier, and includes: the first control information includes a second index, and the second index indicates the second carrier in the carrier set group, or the second index indicates the second carrier and the third carrier in the carrier set group.

[0235] Optionally, the first control information further includes semi-static scheduling (SPS) configuration information, and the SPS configuration information includes transmission period indication information. The SPS configuration information is used to instruct the third transceiver device to perform one or more of the following operations based on the transmission period indication information: receive the data information and / or the second control information on the second carrier every other transmission period indicated by the transmission period indication information, and send feedback control information on the third carrier.

[0236] Optionally, the processing unit 1200 is used to obtain discontinuous reception (DRX) configuration information; and perform discontinuous reception based on the DRX configuration information.

[0237] Optionally, the second carrier includes one or more carriers.

[0238] Alternatively, in another implementation manner, the transceiver unit 1100 can be used to: obtain carrier set configuration information, where the carrier set configuration information indicates a plurality of carriers; receive first control information from a first transceiver device on a first carrier, and the first control information is used to indicate a second carrier among the plurality of carriers; and receive data information from the first transceiver device on the second carrier, where the first carrier is different from the second carrier.

[0239] Optionally, the first control information includes a carrier switching indication, and the carrier switching indication is used to instruct the third transceiver device to switch from the first carrier to the second carrier when receiving data; the transceiver unit 1100 is used to receive data information from the first transceiver device on the second carrier, and includes: receiving the data information from the first transceiver device on the second carrier according to the carrier switching indication.

[0240] Optionally, the transceiver unit 1100 is further used to send feedback control information on a third carrier.

[0241] Optionally, the first control information is used to indicate the second carrier, and includes: the first control information includes a second index, and the second index indicates the second carrier among the plurality of carriers, or the second index indicates the second carrier and the third carrier among the plurality of carriers.

[0242] It should be understood that the specific processes for each unit to execute the above corresponding steps have been described in detail in the above method embodiments. For the sake of brevity, they will not be elaborated here.

[0243] It should also be understood that when the communication device 1000 is a terminal device, the transceiver unit 1100 in the communication device 1000 may correspond to Figure 5 the transceiver 2020 in the terminal device 2000 shown in Figure 5 and the processing unit 1200 in the communication device 1000 may correspond to

[0244] the processor 2010 in the terminal device 2000 shown in

[0245] Optionally, the communication device 1000 further includes a storage unit, which can be used to store instructions or data. The processing unit can call the instructions or data stored in the storage unit to implement corresponding operations. The storage unit can be implemented by at least one memory, for example, it may correspond to Figure 5 the memory 2030 in the terminal device 2000 shown in

[0246] In another possible design, the communication device 1000 may correspond to the second transceiver device in the above method embodiment. For example, it may be a network device or a chip configured in a network device.

[0247] Specifically, the communication device 1000 may correspond to the second transceiver device in the method 300 according to the embodiments of the present application. The communication device 1000 may include units for executing Figure 3 the method executed by the second transceiver device in the method 300 shown in Figure 3 and the units in the communication device 1000 and the above other operations or functions respectively are for implementing

[0248] In one implementation, the transceiver unit 1100 and the processing unit 1200 may be respectively used for:

[0249] The processing unit 1200 is used to determine a first message, which 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. The first carrier is a carrier for the first transceiver device to transmit control information to the third transceiver device, and the second carrier is a carrier for the first transceiver device to transmit data information to the third transceiver device.

[0250] The transceiver unit 1100 is configured to send the first message to the first transceiver device.

[0251] Optionally, the transceiver unit 1100 is further configured to send the first message to a third transceiver device.

[0252] Optionally, the first message further includes third carrier indication information for indicating a third carrier, and the third carrier is used for the third transceiver device to send feedback control information.

[0253] Optionally, the transceiver unit 1100 is further configured to receive feedback control information from the third transceiver device on the third carrier.

[0254] Optionally, the transceiver unit 1100 is further configured to receive feedback control information from the third transceiver device on the first carrier.

[0255] Optionally, the first message further includes a first index for indicating a carrier set group, and the carrier set group includes one or more of the following: the first carrier, the second carrier, and the third carrier.

[0256] Optionally, the first message further includes a first carrier switching indication for instructing the first transceiver device to switch from the first carrier to the second carrier when sending data to the third transceiver device.

[0257] 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.

[0258] Optionally, the first message further includes semi-persistent scheduling (SPS) configuration information, and the SPS configuration information includes transmission period indication information; the SPS configuration information is used to instruct the first transceiver device to perform one or more of the following operations based on the transmission period indication information: sending first control information to the third transceiver device on the first carrier based on the period indicated by the transmission period indication information, and sending data information to the third transceiver device on the second carrier.

[0259] It should be understood that the specific processes for the respective units to execute the corresponding steps above have been described in detail in the above method embodiments. For the sake of brevity, they are not repeated here.

[0260] It should also be understood that when the communication device 1000 is a base station, the transceiver unit 1100 in the communication device 1000 may correspond to Figure 6The radio frequency unit 3012 and the antenna 3011 in the network device 3000 shown in the figure. The processing unit 1100 in the communication device 1000 can be implemented by at least one processor. For example, it can correspond to Figure 6 the processor 3022 in the network device 3000 shown in the figure.

[0261] 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 can be an input / output interface.

[0262] Optionally, the communication device 1000 further includes a storage unit, which can be used to store instructions or data. The processing unit can call the instructions or data stored in the storage unit to implement corresponding operations. The storage unit can be implemented by at least one memory. For example, it can correspond to Figure 6 the memory 3021 in the network device 3000 shown in the figure.

[0263] Figure 5 is a schematic structural diagram of the terminal device 2000 provided by an embodiment of the present application. The terminal device 2000 can be applied to a system such as Figure 1 or Figure 2 shown in the figure, and execute the functions of the first transceiver device or the third transceiver device (such as a terminal device) in the above method embodiment. As Figure 5 shown in the figure, the terminal device 2000 includes a processor 2010 and a transceiver 2020. Optionally, the terminal device 2000 further includes a memory 2030. Among them, the processor 2010, the transceiver 2002, and the memory 2030 can communicate with each other through an internal connection path to transmit control or data signals. The memory 2030 is used to store a computer program, and the processor 2010 is used to call and run the computer program from the memory 2030 to control the transceiver 2020 to transmit and receive signals. Optionally, the terminal device 2000 can further include an antenna 2040, which is used to send the uplink data or uplink control signaling output by the transceiver 2020 through a wireless signal.

[0264] The above-mentioned processor 2010 and the memory 2030 can be integrated into a processing device. The processor 2010 is used to execute the program code stored in the memory 2030 to implement the above functions. Specifically, the memory 2030 can also be integrated in the processor 2010 or be independent of the processor 2010. The processor 2010 can be Figure 4 corresponding to the processing unit in the figure.

[0265] The above-mentioned transceiver 2020 can be Figure 4corresponds to the communication unit therein, and can also be referred to as a transceiver unit. The transceiver 2020 may include a receiver (or a receiver, receiving circuit) and a transmitter (or a transmitter, transmitting circuit). Among them, the receiver is used to receive signals, and the transmitter is used to transmit signals.

[0266] It should be understood that Figure 5 the terminal device 2000 shown is capable of implementing Figure 3 each process related to the first transceiver device or the third transceiver device in the method embodiments shown. The operations or functions of each module in the terminal device 2000 are respectively for implementing the corresponding processes in the above method embodiments. For details, reference can be made to the descriptions in the above method embodiments. To avoid repetition, the detailed descriptions are appropriately omitted here.

[0267] The above-mentioned processor 2010 can be used to execute the actions implemented inside the first transceiver device or the third transceiver device described in the previous method embodiments, and the transceiver 2020 can be used to execute the sending or receiving actions of the first transceiver device or the third transceiver device described in the previous method embodiments. For details, please refer to the descriptions in the previous method embodiments and will not be elaborated here.

[0268] Optionally, the above-mentioned terminal device 2000 may further include a power supply 2050 for supplying power to various devices or circuits in the terminal device.

[0269] In addition, in order to make the functions of the terminal device more complete, 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, and a sensor 2100, etc. The audio circuit may further include a speaker 2082, a microphone 2084, etc.

[0270] Figure 6 is a schematic structural diagram of a network device provided by an embodiment of the present application, for example, it can be a schematic structural diagram of a base station 3000. The base station 3000 can be applied to, for example, Figure 1 or Figure 2In the system shown, the functions of the second transceiver device or the first transceiver device in the above method embodiments are performed. As shown in the figure, the base station 3000 may include one or more DUs 3010 and one or more CUs 3020. The CU 3020 may communicate with the NG core (Next Generation Core Network, NC). The DU 3010 may include at least one antenna 3011, at least one radio frequency unit 3012, at least one processor 3013, and at least one memory 3014. The DU 3010 is mainly used for the transceiver of radio frequency signals, the conversion between radio frequency signals and baseband signals, and partial baseband processing. The CU 3020 may include at least one processor 3022 and at least one memory 3021. Communication may be performed between the CU 3020 and the DU 3010 through an interface. Among them, the control plane (CP) interface may be Fs-C, such as F1-C, and the user plane (UP) interface may be Fs-U, such as F1-U.

[0271] The CU 3020 is mainly used for baseband processing, controlling the base station, etc. The DU 3010 and the CU 3020 may be physically set together or physically separated, that is, a distributed base station. The CU 3020 is the control center of the base station and may also be called a processing unit, mainly used to complete the baseband processing function. For example, the CU 3020 may be used to control the base station to execute the operation process of the access network device in the above method embodiments.

[0272] Specifically, the baseband processing on the CU and the DU may be divided according to the protocol layers of the wireless network. For example, the functions of the PDCP layer and above protocol layers are set on the CU, and the protocol layers below the PDCP layer, such as the RLC layer and the MAC layer, etc., are set on the DU. Another example is that the CU implements the functions of the RRC layer and the PDCP layer, and the DU implements the functions of the RLC layer, the MAC layer, and the PHY layer.

[0273] In addition, optionally, the base station 3000 may include one or more radio frequency units (RUs), one or more DUs, and one or more CUs. Among them, the DU may include at least one processor 3013 and at least one memory 3014, the RU may include at least one antenna 3011 and at least one radio frequency unit 3012, and the CU may include at least one processor 3022 and at least one memory 3021.

[0274] In one example, the CU 3020 may be composed of one or more single boards. Multiple single boards may jointly support a radio access network with a single access indication (such as a 5G network), or may separately support radio access networks with different access systems (such as an LTE network, a 5G network, or other networks). The memory 3021 and the processor 3022 may serve one or more single boards. That is, a memory and a processor may be separately provided on each single board. It is also possible that multiple single boards share the same memory and processor. In addition, necessary circuits may be provided on each single board. The DU 3010 may be composed of one or more single boards. Multiple single boards may jointly support a radio access network with a single access indication (such as a 5G network), or may separately support radio access networks with different access systems (such as an LTE network, a 5G network, or other networks). The memory 3014 and the processor 3013 may serve one or more single boards. That is, a memory and a processor may be separately provided on each single board. It is also possible that multiple single boards share the same memory and processor. In addition, necessary circuits may be provided on each single board.

[0275] It should be understood that Figure 6 the shown base station 3000 can implement Figure 3 each process related to the first transceiver device or the second transceiver device in the shown method embodiments. The operations and / or functions of each module in the base station 3000 are respectively for implementing the corresponding processes in the above method embodiments. For details, reference may be made to the description in the above method embodiments. To avoid repetition, detailed descriptions are appropriately omitted here.

[0276] It should be understood that Figure 6 the shown base station 3000 is only a possible architecture of a network device, and should not impose any limitation on this application. The method provided by this application is applicable to access network devices with other architectures. For example, access network devices including a CU, a DU, and an AAU, etc. This application does not limit the specific architecture of the network device.

[0277] According to the method provided by the embodiments of this application, this application also provides a computer program product, which includes: computer program code. When the computer program code runs on a computer, it causes the computer to execute Figure 3 the method on the first transceiver device side in the shown embodiments, or causes the computer to execute Figure 3 the method on the second transceiver device side in the shown embodiments, or causes the computer to execute Figure 3 the method on the third transceiver device side in the shown embodiments.

[0278] According to the method provided by the embodiments of this application, this application also provides a computer-readable medium, which stores program code. When the program code runs on a computer, it causes the computer to executeFigure 3 The method on the side of the first transceiver device in the illustrated embodiment.

[0279] According to the method provided by the embodiments of the present application, the present application also provides a computer-readable medium storing program code, which, when run on a computer, causes the computer to execute Figure 3 The method on the side of the second transceiver device in the illustrated embodiment.

[0280] According to the method provided by the embodiments of the present application, the present application also provides a computer-readable medium storing program code, which, when run on a computer, causes the computer to execute Figure 3 The method on the side of the third transceiver device in the illustrated embodiment.

[0281] The embodiments of the present application also provide a processing device, including a processor and an interface; the processor is configured to execute the information transmission method in any of the above method embodiments.

[0282] Each transceiver device (the first transceiver device, the second transceiver device, and the third transceiver device) in each of the above device embodiments and each transceiver device (the first transceiver device, the second transceiver device, and the third transceiver device) in the method embodiments correspond exactly. The corresponding steps are executed by the corresponding modules or units. For example, the communication unit (transceiver) executes the receiving or sending steps in the method embodiments, and other steps except sending and receiving can be executed by the processing unit (processor). The functions of specific units can refer to the corresponding method embodiments. Among them, the processor can be one or more.

[0283] It can be understood that some optional features in the embodiments of the present application can, in some scenarios, be implemented independently without relying on other features, such as the current underlying solution, to solve the corresponding technical problems and achieve the corresponding effects. In some scenarios, they can also be combined with other features according to requirements. Correspondingly, the devices given in the embodiments of the present application can also implement these features or functions accordingly, which will not be elaborated here.

[0284] Those skilled in the art can also understand that the various illustrative logical blocks and steps listed in the embodiments of the present application can be implemented by electronic hardware, computer software, or a combination of both. Whether such functions are implemented by hardware or software depends on the specific application and the design requirements of the entire system. Those skilled in the art can use various methods to implement the described functions for each specific application, but such implementation should not be construed as exceeding the scope protected by the embodiments of the present application.

[0285] It should be understood that the processor in the embodiments of the present application may be an integrated circuit chip with signal processing capabilities. In the implementation process, the steps of the above method embodiments can be completed by the integrated logic circuit in the hardware of the processor or instructions in software form. The above-mentioned 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 devices, discrete gate or transistor logic devices, discrete hardware components, and may also be a system on chip (SoC), may also be a central processor unit (CPU), may also be a network processor (NP), may also be a digital signal processing circuit (DSP), may also be a micro controller unit (MCU), may also be a programmable logic device (PLD) or other integrated chips. It can implement or execute the various methods, steps and logic block diagrams disclosed in the embodiments of the present application. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc. The steps of the method disclosed in combination with the embodiments of the present application can be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature storage medium in the art such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory, or an electrically erasable programmable memory, a register, etc. This storage medium is located in the memory, and the processor reads the information in the memory and combines its hardware to complete the steps of the above method.

[0286] The technologies described in this application can be implemented in various ways. For example, these technologies can be implemented in hardware, software, or a combination of hardware and software. For hardware implementation, the processing units for executing these technologies at a communication device (such as a base station, a terminal, a network entity, or a chip) can 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 combination thereof. The general-purpose processor can be a microprocessor. Optionally, the general-purpose processor can also be any conventional processor, controller, microcontroller, or state machine. The processor can also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, multiple microprocessors, one or more microprocessors combined with a digital signal processor core, or any other similar configuration.

[0287] It can be understood that the memory in the embodiments of this application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. 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 synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchlink dynamic random access memory (SLDRAM), and direct rambus random access memory (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include but not be limited to these and any other suitable types of memory.

[0288] This application also provides a computer-readable medium, on which a computer program is stored. When the computer program is executed by a computer, it realizes the functions of any one of the above method embodiments.

[0289] The present application also provides a computer program product, which when executed by a computer, implements the functions of any of the above method embodiments.

[0290] According to the method provided by the embodiments of the present application, the present application also provides a system, which includes one or more of the foregoing transceiver devices (the first transceiver device, the second transceiver device, and the third transceiver device).

[0291] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can 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 the computer instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from a website, a computer, a server, or a data center to another website, a computer, a server, or a data center in a wired manner (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or a wireless manner (such as 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 or a data center that includes one or more integrated available media. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a magnetic tape), an optical medium (such as a high-definition digital video disc (DVD)), or a semiconductor medium (such as a solid state disk (SSD)), etc.

[0292] It should be understood that the "embodiments" mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, the various embodiments mentioned throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics can be combined in one or more embodiments in any suitable manner. It should be understood that in the various embodiments of the present application, the sequence numbers of the above processes do not mean the order of execution, and the execution order of each process should be determined according to its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

[0293] It should also be understood that in this application, "when", "if", and "in case" all refer to the situation where the UE or the base station will take corresponding actions under certain objective circumstances, rather than limiting time, and it is not required that the UE or the base station must have a judgment action when implemented, nor does it mean that there are other limitations.

[0294] Those of ordinary skill in the art can understand that the various digital numbers such as the first, second, etc. involved in this application are only for the convenience of description and are not used to limit the scope of the embodiments of this application, nor do they represent the order of precedence.

[0295] In this application, the elements represented by the singular number are intended to mean "one or more", rather than "one and only one", unless otherwise specified. In this application, without special instructions, "at least one" is intended to mean "one or more", and "a plurality" is intended to mean "two or more".

[0296] In addition, the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship between associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. Among them, A can be singular or plural, and B can be singular or plural.

[0297] The character " / " generally indicates that the objects before and after are in an "or" relationship.

[0298] The term "at least one of..." or "at least one kind of..." in this article represents all or any combination of the items listed. For example, "at least one of A, B, and C" can represent: A exists alone, B exists alone, C exists alone, A and B exist simultaneously, B and C exist simultaneously, and A, B, and C exist simultaneously. Among them, A can be singular or plural, B can be singular or plural, and C can be singular or plural.

[0299] It should be understood that in the embodiments of this application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean that B is determined only according to A, and B can also be determined according to A and / or other information.

[0300] The corresponding relationships shown in each table in this application can be configured or predefined. The values of the information in each table are only examples and can be configured as other values, which are not limited in this application. When configuring the corresponding relationships between the configuration information and each parameter, it is not necessarily required to configure all the corresponding relationships shown in each table. For example, in the tables in this application, the corresponding relationships shown in some rows can also not be configured. Another example is that appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables can also be other names understandable by the communication device, and the values or representation methods of the parameters can also be other values or representation methods understandable by the communication device. When implementing the above tables, other data structures can also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash maps, etc.

[0301] A unified explanation is given here. "Predefined" in the embodiments of this application can be understood as defining, predefining, storing, prestoring, pre-negotiating, pre-configuring, solidifying, or pre-burning. "Configuration" in the embodiments of this application can be understood as being notified through RRC signaling, MAC signaling, and physical layer information, where the physical layer information can be transmitted through PDCCH or PDSCH.

[0302] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be implemented by electronic hardware or a combination of computer software and electronic hardware. Whether these functions are executed in a hardware or software manner depends on the specific application and design constraints of the technical solution. Professional technicians can use different methods to implement the described functions for each specific application, but such implementation should not be considered to exceed the scope of this application.

[0303] Those skilled in the art can clearly understand that for the convenience and brevity of description, the specific working processes of the systems, devices, and units described above can refer to the corresponding processes in the foregoing method embodiments and will not be elaborated herein.

[0304] In several embodiments provided in this application, it should be understood that the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division, and there can be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the displayed or discussed couplings or direct couplings or communication connections to each other can be through some interfaces, and the indirect couplings or communication connections of the devices or units can be in electrical, mechanical, or other forms.

[0305] The unit described as a separation component may or may not be physically separated. The component shown as a unit may or may not be a physical unit, that is, it may be located in one place or distributed to multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0306] In addition, in each embodiment of the present application, each functional unit can be integrated in a processing unit, can also exist physically separately for each unit, or two or more units can be integrated in one unit.

[0307] If the described function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0308] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present application can easily think of changes or substitutions, which should all be covered by the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claimed rights.

Claims

1. A method for information transmission, characterized in that, comprising: A first transceiver device receives a first message from a second transceiver device, the first message includes first carrier indication information and / or second carrier indication information, the first message further includes third 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, and the third carrier indication information is used to indicate a third carrier; The first transceiver device sends first control information to a third transceiver device on the first carrier, the first control information is used to indicate the second carrier and the third carrier; The first transceiver device sends data information to the third transceiver device on the second carrier and receives feedback control information from the third transceiver device on the third carrier, the first carrier is different from the second carrier, wherein, the transmission between the third transceiver device and the first transceiver device is sidelink transmission.

2. The method according to claim 1, characterized in that, the method further comprises: The first transceiver device sends second control information to the third transceiver device on the second carrier, the second control information is used to schedule the data information.

3. The method according to claim 1 or 2, characterized in that, the method further comprises: The first transceiver device receives feedback control information from the third transceiver device on the first carrier.

4. The method according to claim 1 or 2, characterized in that, the first message further includes a first index, the first index is used to identify a carrier set group, the carrier set group includes one or more of the following: the first carrier, the second carrier and the third carrier; The first control information is used to indicate the second carrier, including: the first control information includes a second index, the second index indicates the second carrier in the carrier set group, or, the second index indicates the second carrier and the third carrier in the carrier set group.

5. The method according to claim 1 or 2, characterized in that, the first message further includes a first carrier switching indication, the first carrier switching indication is used to indicate that the first transceiver device switches from the first carrier to the second carrier when sending data information to the third transceiver device; The first control information is used to indicate the second carrier, including: the first control information includes a second carrier switching indication, the second carrier switching indication is used to indicate that the third transceiver device switches from the first carrier to the second carrier when receiving data information.

6. The method according to claim 1 or 2, characterized in that, 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, the request message is used to request a carrier for transmitting control information or data information.

7. The method according to claim 1 or 2, characterized in that, the second carrier includes one or more carriers.

8. A method for information transmission, characterized in that, comprising: The third transceiver device receives first control information sent by the first transceiver device on a first carrier, and the first control information is used to indicate a second carrier and a third carrier; The third transceiver device receives data information sent by the first transceiver device on the second carrier, and sends feedback control information to the first transceiver device or the second transceiver device on the third carrier. The first carrier is different from the second carrier. Wherein, the transmission between the third transceiver device and the first transceiver device is a sidelink transmission.

9. The method according to claim 8, wherein, the method further includes: The third transceiver device receives second control information sent by the first transceiver device on the second carrier, and the second control information is used to schedule the data information.

10. The method according to claim 8 or 9, wherein, the method further includes: The third transceiver device sends feedback control information to the first transceiver device or the second transceiver device on the first carrier.

11. The method according to claim 8 or 9, wherein, The first control information includes a second carrier switching indication, and the second carrier switching indication is used to indicate that the third transceiver device switches from the first carrier to the second carrier when receiving data; The third transceiver device receives data information sent by the first transceiver device on the second carrier, including: The third transceiver device receives data information sent by the first transceiver device on the second carrier according to the second carrier switching indication.

12. The method according to claim 8 or 9, wherein, the method further includes: The third transceiver device receives a first message from the second transceiver device.

13. The method according to claim 12, wherein, The first message includes a third carrier switching indication, and the third carrier switching indication is used to indicate that the third transceiver device switches from the first carrier to the second carrier when receiving data; The third transceiver device receives data information sent by the first transceiver device on the second carrier, including: The third transceiver device receives data information sent by the first transceiver device on the second carrier according to the third carrier indication information.

14. The method according to claim 12, wherein, The first message further includes a first index, and the first index is used to indicate a carrier set group, and the carrier set group includes the first carrier, the second carrier and the third carrier; The first control information is used to indicate the second carrier, including: the first control information includes a second index, and the second index indicates the second carrier in the carrier set group, or the second index indicates the second carrier and the third carrier in the carrier set group.

15. The method according to claim 8 or 9, wherein, The second carrier includes one or more carriers.

16. A method for information transmission, wherein, including: The second transceiver device determines a first message, where the first message includes first carrier indication information and / or second carrier indication information, and the first message further includes third 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, and the third carrier indication information is used to indicate a third carrier. The first carrier is a carrier for the first transceiver device to transmit control information to the third transceiver device, the second carrier is a carrier for the first transceiver device to transmit data information to the third transceiver device, and the third carrier is a carrier for the third transceiver device to send feedback control information. The second transceiver device sends the first message to the first transceiver device.

17. The method according to claim 16, wherein, the method further includes: The second transceiver device sends the first message to the third transceiver device.

18. The method according to claim 16, wherein, the method further includes: The second transceiver device receives feedback control information from the third transceiver device on the third carrier.

19. The method according to claim 16 or 17, wherein, the method further includes: The second transceiver device receives feedback control information from the third transceiver device on the first carrier.

20. The method according to claim 16 or 17, wherein, the first message further includes a first index, and 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 the third carrier.

21. The method according to claim 16 or 17, wherein, the first message further includes a first carrier handover indication, and the first carrier handover indication is used to indicate that the first transceiver device switches from the first carrier to the second carrier when sending data to the third transceiver device.

22. The method according to claim 16 or 17, wherein, 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, and the request message is used to request a carrier for transmitting control information or data information.

23. A communication device, wherein, it includes units for implementing the method according to any one of claims 1 to 22.

24. A communication device, wherein, it includes: a processor, configured to execute computer instructions stored in a memory, so that the device executes the method according to any one of claims 1 to 22.

25. A computer storage medium, wherein, it includes a program or instructions, and when the program or instructions are run, the method according to any one of claims 1 to 22 is executed.

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