WO2021253384A1

WO2021253384A1 - Information transmission method, device, system, and storage medium

Info

Publication number: WO2021253384A1
Application number: PCT/CN2020/097050
Authority: WO
Inventors: 夏欣
Original assignee: 深圳传音控股股份有限公司
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2021-12-23
Also published as: CN113366917A; CN113366917B

Abstract

The embodiments of the present application provide an information transmission method, a device, a system, and a storage medium. Said method comprises: a network device determining at least two different carriers for transmitting control information, and sending the control information to a terminal device by means of the at least two different carriers, the control information comprising carrier number information of the at least two carriers. In the embodiments of the present application, the control information is transmitted by means of the at least two different carriers, improving the transmission reliability and timeliness of the control information, and ensuring the communication quality.

Description

Information transmission method, equipment, system and storage medium

Technical field

The embodiments of the present application relate to the field of communication technologies, and in particular, to an information transmission method, device, system, and storage medium.

Background technique

Communication systems, such as Long Term Evolution (LTE) systems or New Radio (NR) systems, carry physical layer downlink control information, such as downlinks, through the Physical Downlink Control Channel (PDCCH) Channel control information (Downlink Control Information, DCI) is used to schedule uplink and downlink data or perform different command instructions for terminal equipment. If the physical layer downlink control information is transmitted through a single carrier, there will be a problem of failure to receive the physical layer downlink control information, which in turn affects the communication quality.

The foregoing description is to provide general background information and does not necessarily constitute prior art.

Summary of the invention

The embodiments of the present application provide an information transmission method, device, system, and storage medium to improve control information, such as physical layer downlink control information, transmission reliability, and ensure communication quality.

In the first aspect, an embodiment of the present application provides an information transmission method, which is applied to a network device, and includes the following steps:

S10. Determine at least two different carriers used to transmit control information, where the control information includes carrier number information of the at least two different carriers;

S30. Send the control information to the terminal device through at least two different carriers.

In a possible implementation manner, before step S10, the above-mentioned information transmission method may further include:

S00. When a preset trigger condition is met, a repetitive transmission mode is activated, where the repetitive transmission mode indicates that the control information is transmitted through at least two different carriers.

In a possible implementation manner, the S00 step may include: acquiring the signal quality of the current carrier; when the signal quality is less than or equal to the first preset threshold, starting the repeated transmission mode.

In a possible implementation manner, the signal quality may include Reference Signal Received Power (RSRP) and/or Reference Signal Received Quality (RSRQ).

In a possible implementation manner, the reference signal may include: Channel State Information Reference Signal (CSI-RS).

In a possible implementation manner, the S00 step may include: acquiring a physical downlink control channel transmission resource utilization rate; when the physical downlink control channel transmission resource utilization rate is less than or equal to a second preset threshold, the repeated transmission mode is activated.

In a possible implementation manner, the S00 step may include: if it is determined that the recipient of the above-mentioned control information satisfies a preset condition, starting a repeated transmission mode.

In a possible implementation manner, the receiving party satisfies the preset condition, which may include at least one of the following:

The device type of the receiver is the preset device type;

The service type of the receiver is the preset service type;

The receiver meets the preset access level.

In a possible implementation manner, the S00 step may include: receiving request information sent by the terminal device, where the request information is used to request to start the repeated transmission mode; and to start the repeated transmission mode.

In a possible implementation manner, after step S00, the method may further include: sending first notification information to the terminal device, where the first notification information is used to indicate that the repeated transmission mode is currently activated.

In a possible implementation manner, after step S00, the method may further include: if it is determined that the preset trigger condition is not met, turning off the repeated transmission mode.

In a possible implementation manner, after the repetitive transmission mode is turned off, the method further includes: sending second notification information to the terminal device, the second notification information being used to indicate that the repetitive transmission mode is currently closed.

In the second aspect, an embodiment of the present application provides an information transmission method, which is applied to a terminal device, and includes the following steps:

S100. Receive control information through at least two different carriers, where the control information includes carrier number information of at least two different carriers;

S200. Execution control information.

In a possible implementation manner, step S100 may include: receiving control information through any one of at least two different carriers.

In a possible implementation manner, before step S100, the method may further include:

S000. Send request information to the network device, where the request information is used to request to start a repeated transmission mode, and the repeated transmission mode is used to indicate that the control information is transmitted through at least two different carriers.

In a possible implementation manner, after step S000, the method may further include:

S300. Receive first notification information sent by a network device, where the first notification information is used to indicate that the repeated transmission mode is currently activated.

In a possible implementation manner, after step S300, the method may further include: receiving second notification information sent by the network device, where the second notification information is used to indicate that the repeated transmission mode is currently closed.

In a third aspect, an embodiment of the present application provides an information transmission device, which is applied to a network device, and includes:

A processing module, configured to determine at least two different carriers used to transmit control information, where the control information includes carrier number information of the at least two different carriers;

The sending module is configured to send the control information to the terminal device through the at least two different carriers.

In a possible implementation manner, the processing module is further configured to: before the processing module determines at least two different carriers used to transmit control information, when a preset trigger condition is met, start a repeated transmission mode, where the repeated transmission mode indicates that the at least Two different carriers transmit control information.

In a possible implementation manner, the processing module may be specifically configured to: obtain the signal quality of the current carrier; when the signal quality is less than or equal to the first preset threshold, start the repeated transmission mode.

In a possible implementation manner, the signal quality may include reference signal received power and/or reference signal received quality.

In a possible implementation manner, the reference signal may include: channel state indication-reference signal.

In a possible implementation manner, the processing module may be specifically configured to: obtain the utilization rate of the physical downlink control channel transmission resource; when the utilization rate of the physical downlink control channel transmission resource is less than or equal to the second preset threshold, start the repeated transmission mode.

In a possible implementation manner, the processing module may be specifically configured to: if it is determined that the recipient of the above-mentioned control information satisfies the preset condition, start the repeated transmission mode.

The device type of the receiver is the preset device type;

The service type of the receiver is the preset service type;

The receiver meets the preset access level.

In a possible implementation manner, the processing module may be specifically configured to: receive request information sent by the terminal device, where the request information is used to request to start the repeated transmission mode; to start the repeated transmission mode.

In a possible implementation manner, the sending module is further configured to: after the processing module starts the repeated transmission mode, send first notification information to the terminal device, and the first notification information is used to indicate that the repeated transmission mode is currently started.

In a possible implementation manner, the processing module is further configured to: if it is determined that the preset trigger condition is not met, turn off the repeated transmission mode.

In a possible implementation manner, the sending module is further configured to: after the processing module turns off the repeated transmission mode, send second notification information to the terminal device, where the second notification information is used to indicate that the repeated transmission mode is currently closed.

It should be noted that the information transmission device of the third aspect may be a network device or a chip of a network device.

In a fourth aspect, an embodiment of the present application provides an information transmission device, which is applied to a terminal device, and includes:

A receiving module, configured to receive control information passing through at least two different carriers, and the control information includes carrier number information of at least two different carriers;

The processing module is used to execute control information.

In a possible implementation manner, the receiving module is specifically configured to receive control information through any one of at least two different carriers.

In a possible implementation manner, the apparatus may further include: a sending module, configured to send the request information to the network device before the receiving module receives the control information. Wherein, the request information is used to request to start the repeated transmission mode, and the repeated transmission mode is used to indicate that the control information is transmitted through at least two different carriers.

In a possible implementation manner, the receiving module may also be used to: after the sending module sends the request information to the network device, receive the first notification information sent by the network device, and the first notification information is used to indicate that the repeated transmission mode is currently activated .

In a possible implementation manner, the receiving module may also be used to receive second notification information sent by the network device, where the second notification information is used to indicate that the repeated transmission mode is currently closed.

It should be noted that the information transmission device of the fourth aspect may be a terminal device or a chip of a terminal device.

On the basis of any of the above possible implementations:

Optionally, the at least two different carriers may include at least one of the following:

At least two carriers located in different frequency bands or the same frequency band;

At least two carriers of different bandwidths;

At least two carriers with different transmission characteristics.

Optionally, the request information is carried by radio resource control (Radio Resource Control, RRC) signaling or physical layer signaling.

Optionally, the first notification information may be carried through at least one of the following signaling: downlink control information, media access control-control element (Media Access Control-Control Element, MAC CE) signaling, radio resource control information make.

Optionally, the second notification information may be carried by at least one of the following signaling: downlink control information, medium access control-control unit, and radio resource control signaling.

In a fifth aspect, an embodiment of the present application provides a communication device, including: a memory and a processor;

The memory is used to store program instructions;

The processor is configured to call program instructions in the memory to execute the method according to any one of the first aspect or the method according to any one of the second aspect.

It should be noted that the communication device of the fifth aspect may be a terminal device or a network device, or a chip of a terminal device or a chip of a network device.

In a sixth aspect, an embodiment of the present application provides a communication system, including:

A network device used to implement any one of the first aspect; and

Used to implement the terminal device of any one of the second aspect.

In a seventh aspect, an embodiment of the present application provides a readable storage medium with a computer program stored on the readable storage medium; when the computer program is executed, the method according to any one of the first aspect or any one of the second aspect is implemented. The method described in one item.

In an eighth aspect, the embodiments of the present application also provide a program product. The program product includes a computer program. The computer program is stored in a readable storage medium. The processor can read the computer program from the readable storage medium, and the processor executes the computer program. The method according to any one of the first aspect or the second aspect is implemented.

The embodiments of the present application provide an information transmission method, device, system, and storage medium. Control information, such as downlink control information, is transmitted through at least two different carriers. The control information includes carrier number information of at least two carriers. Control the reliability and timeliness of information transmission to ensure communication quality.

Description of the drawings

FIG. 1 is a schematic diagram of a communication system provided by an embodiment of this application;

FIG. 2 is a flowchart of an information transmission method provided by an embodiment of the application;

FIG. 3 is a flowchart of an information transmission method provided by another embodiment of this application;

FIG. 4 is a flowchart of an information transmission method provided by another embodiment of this application;

FIG. 5 is a flowchart of an information transmission method provided by another embodiment of this application;

FIG. 6 is a schematic structural diagram of an information transmission device provided by an embodiment of this application;

FIG. 7 is a schematic structural diagram of an information transmission device provided by another embodiment of this application;

FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of this application.

detailed description

It should be understood that the “and/or” in the embodiments of the present application describes the association relationship of the associated objects, and means that there can be three kinds of relationships, for example, A and/or B can mean that there is A alone, and A and B exist at the same time. , The case of B alone, where A and B can be singular or plural. The character "/" generally indicates that the associated objects before and after are in an "or" relationship.

In addition, the step codes involved in the embodiments of this application, such as S00, S10, S20, S100, S200, etc., are used to express the corresponding steps more clearly, and do not constitute a substantial restriction on the order. Those skilled in the art may S20 will be executed first and then S10 will be executed, but these should all fall within the scope of protection of this application.

First, the application scenarios and some vocabulary involved in the embodiments of the present application are introduced.

Fig. 1 is a schematic diagram of a communication system provided by an embodiment of the application. As shown in Figure 1, the communication system includes network equipment and terminal equipment. Wherein, the terminal device is within the coverage of the network device and communicates with the network device to implement the technical solutions provided in the following embodiments of the present application. in:

Network equipment, also known as Radio Access Network (RAN) equipment, is a type of equipment that connects terminal equipment to the wireless network. It can be an evolved Node B, eNB, or eNodeB), or a relay station or an access point, or a base station in a 5G network, such as a transmission and reception point (TRP), and a controller, which are not limited here. In one possible manner, the network device may be a base station (such as a gNB) with a separate architecture of CU and DU.

The terminal device can be a wireless terminal device or a wired terminal device. Wireless terminal equipment can refer to a device with wireless transceiver function, which can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes). , Balloons and satellites etc.). The terminal device may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with wireless transceiver function, virtual reality (VR) terminal equipment, augmented reality (Augmented Reality, AR) terminal equipment, industrial control ( Wireless terminal equipment in industrial control, wireless terminal equipment in self-driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid, transportation safety (transportation) The wireless terminal equipment in safety), the wireless terminal equipment in a smart city, and the wireless terminal equipment in a smart home (smart home) are not limited here. It can be understood that, in this embodiment of the present application, the terminal device may also be referred to as User Equipment (UE).

With the development of communication technology, low latency and high reliability become inevitable in certain scenarios. Therefore, the transmission quality of physical layer control signals will be extremely important. If control information, such as DCI, is only transmitted on one carrier, it is limited by the physical resource capacity and channel quality of the carrier, and severe transmission quality problems will inevitably occur when the current carrier channel is poor. On the other hand, as important control information, control information has a certain probability of reception failure, which will cause performance degradation.

Therefore, based on the above-mentioned problems, this application proposes to repeatedly transmit control information through at least two different carriers to improve the reliability of control information transmission and reduce the delay, and to ensure communication quality.

Fig. 2 is a flowchart of an information transmission method provided by an embodiment of the application. The embodiment of the application provides an information transmission method, which is applied to a network device. As shown in Figure 2, the method of this embodiment includes the following steps:

S10. Determine at least two different carriers used to transmit control information.

Wherein, the control information includes carrier number information of at least two carriers.

S30. Send control information to the terminal device through at least two different carriers.

The same control information is transmitted on two or more different carriers to realize "duplication" (Duplication) on different carriers. Correspondingly, when the terminal device receives the control information, it can receive it through the at least two carriers. Those skilled in the art can understand that when at least two carriers repeatedly transmit the same control information, the probability of successful reception of the terminal device is higher than the probability of a single carrier transmitting control information, thereby realizing physical layer control scheduling information or signaling. Transmission reliability is enhanced.

On the other hand, when a single carrier fails to transmit control information, the control information needs to be transmitted again. The time spent in this process is significantly higher than the time spent simultaneously transmitting the same control information through at least two different carriers. Therefore, the implementation The example can also reduce the delay and ensure the timeliness of control information transmission.

Carrier number information of at least two carriers, for example, carrier number, is carried in the control information to indicate to which carrier the control information is applicable. Exemplarily, a certain control information is repeatedly transmitted through carrier A and carrier B. If the terminal device receives the control information transmitted through carrier A or carrier B, it is considered that the reception is successful, and the control information is executed. The control information shows that the carriers used are carrier A and carrier B, and subsequent processing will not be repeated after the control information is received on carrier B.

In the information transmission method provided by the embodiments of the present application, a network device determines at least two different carriers for transmitting control information, and transmits them to the terminal device through the at least two different carriers, where the control information includes at least two carriers Carrier number information. Since the control information is transmitted through at least two different carriers, the probability of successful reception by the terminal device is higher than that when the control information is transmitted on a single carrier, thereby improving the reliability and timeliness of control information transmission and ensuring communication quality.

In addition, considering that more carriers are introduced in the New Radio (NR) system to implement carrier aggregation transmission, these carriers can be located in different frequency bands with different bandwidths and different transmission characteristics. NR systems are in different carrier frequency bands. The physical transmission resource blocks available for physical layer downlink or control information are also different. However, a single carrier transmits control information and cannot fully utilize the transmission resources of carriers on other frequencies to achieve diversity gain.

Therefore, on the basis of the foregoing embodiment, optionally, the foregoing at least two different carriers may include, but are not limited to, at least one of the following:

At least two carriers of different bandwidths;

At least two carriers with different transmission characteristics.

Since these carriers can be located in different frequency bands and different bandwidths, their transmission characteristics are different. Therefore, the transmission resources of carriers on other frequencies can be fully utilized to achieve diversity gain.

If the embodiments of this application are applied to the new air interface system, the advantages of multi-carrier and large bandwidth can be fully utilized.

In some embodiments, the network device may decide whether to activate the repetitive transmission mode, and the repetitive transmission mode indicates that the control information is transmitted through at least two different carriers. The following description will be given in conjunction with FIG. 3. FIG. 3 is a flowchart of an information transmission method provided by another embodiment of this application.

As shown in FIG. 3, the information transmission method of this embodiment may include the following steps:

S00. When the preset trigger condition is met, start the repeated transmission mode.

Among them, the preset trigger condition may include but is not limited to at least one of the following:

The signal quality is less than or equal to the first preset threshold;

Physical downlink control channel transmission resource usage rate is less than or equal to the second preset threshold;

The recipient of the control information meets the preset conditions;

The request information sent by the terminal device is received, and the request information is used to request to start the repeated transmission mode.

1. The preset trigger condition is that the signal quality is less than or equal to the first preset threshold. At this time, step S00 may include: acquiring the signal quality of the current carrier; when the signal quality is less than or equal to the first preset threshold, starting the repeated transmission mode.

Optionally, the signal quality may include reference signal received power and/or reference signal received quality, etc. Further, the reference signal may, but is not limited to, include: channel state indication-reference signal.

It should be clarified that the first preset threshold corresponding to the received power of the reference signal and the first preset threshold corresponding to the received quality of the reference signal may be the same or different, which is not limited in the embodiment of the present application. In addition, the signal quality is less than or equal to the first preset threshold, including at least one of the following:

1) The received power of the reference signal is less than or equal to its corresponding first preset threshold;

2) The reference signal reception quality is less than or equal to its corresponding first preset threshold;

3) The reference signal received quality is less than or equal to its corresponding first preset threshold, and the reference signal received power is less than or equal to its corresponding first preset threshold.

When the signal quality of the current carrier is less than or equal to the first preset threshold, the network device can select other carriers to cooperate with "repetitive transmission" to improve the reliability and timeliness of control information transmission. As for how the network device selects other carriers, the embodiment of this application does not limit it.

2. The preset trigger condition is that the utilization rate of the physical downlink control channel transmission resource is less than or equal to the second preset threshold. Correspondingly, the step S00 may include: acquiring a physical downlink control channel transmission resource usage rate; when the physical downlink control channel transmission resource usage rate is less than or equal to a second preset threshold, starting a repeated transmission mode.

When the current physical downlink control channel transmission resources of each carrier are relatively sufficient, and the physical downlink control channel transmission resource usage rate is less than or equal to the second preset threshold, the network device starts the repeated transmission mode.

It should also be noted that both the first preset threshold and the second preset threshold can be set according to actual needs or historical experience, and the embodiment of the present application does not limit their specific values.

3. The preset trigger condition is that the recipient of the control information meets the preset condition. Correspondingly, the S00 step may include: if it is determined that the recipient of the control information satisfies the preset condition, starting the repeated transmission mode.

Optionally, the receiver satisfies a preset condition, which may include at least one of the following:

The device type of the receiver is the preset device type;

The service type of the receiver is the preset service type;

The receiver meets the preset access level.

For certain specific preset device types, preset service types, or preset access levels, the corresponding control information adopts the "repetitive transmission" method to enhance the reliability and timeliness of transmission.

Among them, the preset device category (UE Category) refers to the device type information of the terminal device. For some devices with weaker capabilities, such as Internet of Things terminals, base stations and other network devices, you can decide whether to enable this information transmission method according to the device type. The preset service type (Traffic Type) refers to the service type corresponding to the data sent by the terminal device. It can be judged according to the value of QCI (QoS Class Identifier), for example, for specific ultra-reliable and low latency communications (Ultra-reliable and Low Latency Communications). , URLLC) and other services, network equipment such as base stations can decide whether to enable this information transmission method. The access class (UE Priority Class) refers to the access priority information of the terminal equipment. The network equipment such as the base station can decide whether to enable this information transmission method according to the access level of the equipment.

For example, if the device type of the recipient is the preset device type, the recipient satisfies the preset condition; or, if the device type of the recipient is the preset device type, and the service type of the recipient is the preset service type, then The receiver meets the preset condition; or, if the receiver's device type is the preset device type, the receiver's service type is the preset service type, and the receiver meets the preset access level, the receiver meets the preset condition, By analogy, I won't repeat them here.

4. The preset trigger condition is that the request information sent by the terminal device is received. Correspondingly, the S00 step may include: receiving the request information sent by the terminal device; and starting the repeated transmission mode.

Optionally, the request information is carried through radio resource control signaling or physical layer signaling.

In some embodiments, after the S00 step, the information transmission method may further include: sending the first notification information to the terminal device. Wherein, the first notification information is used to indicate that the repeated transmission mode is currently activated.

Further, the first notification information may be carried by at least one of the following signaling: downlink control information, medium access control-control unit signaling, radio resource control signaling, and so on.

In some embodiments, after step S00, the information transmission method may further include: if it is determined that the preset trigger condition is not met, turning off the repeated transmission mode. For example, when the transmission resources of the physical downlink control channel are limited and the usage rate of the transmission resources of the physical downlink control channel is greater than the second preset threshold, the network device turns off the repeated transmission mode. For another example, when the recipient of the control information to be transmitted does not meet the preset conditions, the network device turns off the repeat transmission mode; or, when the signal quality is greater than the first preset threshold, the current signal quality is considered to be good and there is no need to repeat the transmission, and the network device Turn off repeat transmission mode.

Optionally, after the repetitive transmission mode is turned off, the information transmission method may further include: sending second notification information to the terminal device, the second notification information being used to indicate that the repetitive transmission mode is currently closed.

Similar to the first notification information, the second notification information may be carried through at least one of the following signaling: downlink control information, medium access control-control unit signaling, radio resource control signaling, and so on.

It can be understood that after the network device starts the repeated transmission mode, the network device, for example, the base station, can notify the terminal device whether it is currently turned on or not through downlink control information, medium access control-control unit signaling, radio resource control signaling, etc. /Close the repeat transmission mode, realize the dynamic opening or closing of the repeat transmission mode.

Corresponding to the steps performed by the network device in the foregoing embodiment, the steps performed by the terminal device are described next in conjunction with FIG. 4. FIG. 4 is a flowchart of an information transmission method provided by another embodiment of this application.

Referring to FIG. 4, the information transmission method of this embodiment includes the following steps:

S100. Receive control information through at least two different carriers.

S200. Execution control information.

Optionally, step S100 may include: receiving control information through any one of at least two different carriers. When the terminal device successfully parses out the control information on any carrier, it is considered that the reception is successful, and the control information is executed. After the control information is subsequently received on another carrier, the processing will not be repeated.

Further, as shown in FIG. 5, based on the flow shown in FIG. 4, before step S100, the method may further include:

S000. Send the request information to the network device.

Optionally, after step S000, the method may further include:

S300. Receive first notification information sent by a network device.

Furthermore, after step S300, the method may further include: receiving second notification information sent by the network device.

Wherein, the related descriptions of control information, carrier, request information, repeated transmission mode, first notification information, second notification information, etc. are as described above, and will not be repeated here.

It should be noted that any of the foregoing embodiments can be implemented separately, or can be implemented in any combination of at least two of the foregoing embodiments, which is not limited.

It can be understood that, in the foregoing embodiments, the operations and steps implemented by the terminal device may also be implemented by components (such as a chip or a circuit) that can be used for the terminal device, which is not limited in the embodiment of the present application. The operations and steps implemented by the network device can also be implemented by components (for example, a chip or a circuit) that can be used for the network device, which is not limited in the embodiment of the present application.

FIG. 6 is a schematic structural diagram of an information transmission device provided by an embodiment of the application. As shown in FIG. 6, the information transmission device 60 may be a network device, a component of a network device (for example, an integrated circuit, a chip, etc.), or may be another communication module for implementing any of the foregoing embodiments Corresponds to the operation of the network device. The information transmission device 60 of this embodiment includes: a processing module 61 and a sending module 62. The information transmission apparatus 60 in this embodiment can implement the network device solution in any of the foregoing embodiments through the processing module 61 and the sending module 62, and the implementation principles and technical effects are similar, and will not be repeated here.

FIG. 7 is a schematic structural diagram of an information transmission device provided by another embodiment of the application. As shown in FIG. 7, the information transmission apparatus 70 may be a terminal device, a component of a terminal device (for example, an integrated circuit, a chip, etc.), or may be another communication module for implementing any of the foregoing embodiments Corresponds to the operation of the terminal device. The information transmission device 70 of this embodiment includes: a receiving module 71 and a processing module 72. The information transmission apparatus 70 of this embodiment can implement the solution of the terminal device in any of the foregoing embodiments through the receiving module 71 and the processing module 72, and the implementation principles and technical effects are similar, and will not be repeated here.

FIG. 8 is a schematic structural diagram of a communication device provided by an embodiment of this application. As shown in FIG. 8, the communication device 80 described in this embodiment may be the terminal device (or a component that can be used for a terminal device) or a network device (or a component that can be used for a network device) mentioned in the foregoing method embodiment. The communication device 80 may be used to implement the method corresponding to the terminal device or the network device described in the foregoing method embodiment. For details, refer to the description in the foregoing method embodiment.

The communication device 80 may include one or more processors 81, and the processor 81 may also be referred to as a processing unit, which may implement certain control or processing functions. The processor 81 may be a general-purpose processor, a special-purpose processor, or the like. For example, it can be a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processor can be used to control the communication device, execute the software program, and process the data of the software program.

In a possible design, the processor 81 may also store instructions 83 or data (for example, intermediate data). Wherein, the instruction 83 may be executed by the processor 81, so that the communication device 80 executes the method corresponding to the terminal device or the network device described in the foregoing method embodiment.

In yet another possible design, the communication device 80 may include a circuit, which may implement the sending or receiving or communication functions in the foregoing method embodiments.

In a possible implementation manner, the communication device 80 may include one or more memories 82, on which instructions 84 may be stored, and the instructions may be executed on the processor 81, so that the communication device 80 executes the foregoing method embodiments. Method described in.

In a possible implementation manner, the memory 82 may also store data. The processor 81 and the memory 82 can be provided separately or integrated together.

In a possible implementation manner, the communication device 80 may further include a transceiver 85 and/or an antenna 86. The processor 81 may be referred to as a processing unit, and controls the communication device 80 (terminal device or core network device or wireless access network device). The transceiver 85 may be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and is used to implement the transceiver function of the communication device 80.

In one design, if the communication device 80 is used to implement operations corresponding to the terminal devices in the foregoing embodiments, for example, the transceiver 85 may receive control information through at least two different carriers, and the control information includes at least two Carrier number information of two different carriers. The control information can be executed by the processor 81.

For the specific implementation process of the processor 81 and the transceiver 85, reference may be made to the relevant descriptions of the foregoing embodiments, which will not be repeated here.

In another design, if the communication device 80 is used to implement operations corresponding to the network devices in the foregoing embodiments, for example, the processor 81 may determine at least two different carriers used to transmit control information. Contains carrier number information of at least two different carriers. The transceiver 85 may send the control information to the terminal device through the at least two different carriers.

The processor 81 and the transceiver 85 described in this application can be implemented in an integrated circuit (IC), an analog integrated circuit, a radio frequency integrated circuit (RFIC), a mixed signal integrated circuit, and an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), Printed Circuit Board (Printed Circuit Board, PCB), electronic equipment, etc. The processor 81 and the transceiver 85 can also be manufactured using various integrated circuit process technologies, such as Complementary Metal Oxide Semiconductor (CMOS), N Metal-Oxide-Semiconductor (NMOS) ), P-type metal oxide semiconductor (Positive channel Metal Oxide Semiconductor, PMOS), Bipolar Junction Transistor (BJT), Bipolar CMOS (BiCMOS), Silicon Germanium (SiGe), Gallium Arsenide (GaAs) Wait.

Although in the above description of the embodiments, the information transmission apparatus is described by taking terminal equipment or network equipment as an example, the scope of the information transmission apparatus described in this application is not limited to the above terminal equipment or network equipment, and the structure of the information transmission apparatus It is not limited by the figure 8. The information transmission device may be a stand-alone device or may be part of a larger device.

An embodiment of the present application also provides a communication system, including: the terminal device in any of the above method embodiments; and the network device in any of the above method embodiments.

The embodiment of the present application also provides a readable storage medium, and the readable storage medium stores a computer program; when the computer program is executed, the operation as in any of the above method embodiments is realized.

The embodiments of the present application also provide a program product. The program product includes a computer program. The computer program is stored in a readable storage medium. The processor can read the computer program from the readable storage medium. The processor executes the computer program to implement any one of the foregoing. Operation of the method embodiment.

An embodiment of the present application further provides a chip, including a memory and a processor, the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that the chip is installed The device executes the methods described in the various possible implementation manners above.

A person of ordinary skill in the art can understand that all or part of the steps in the foregoing method embodiments can be implemented by a program instructing relevant hardware. The aforementioned program can be stored in a computer readable storage medium. When the program is executed, it executes the steps including the foregoing method embodiments; and the foregoing storage medium includes: ROM, RAM, magnetic disk, or optical disk and other media that can store program codes.

It should be understood that, although the steps in the flowchart in the foregoing embodiment are displayed in sequence as indicated by the arrows, these steps are not necessarily executed in sequence in the order indicated by the arrows. Unless there is a clear description in this article, the execution of these steps is not strictly limited in order, and they can be executed in other orders. Moreover, at least part of the steps in the figure may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily executed at the same time, but can be executed at different times, and the order of execution is not necessarily sequential. Instead, it may be performed alternately or alternately with other steps or at least a part of other steps or sub-steps or stages.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit it; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. Scope.

Claims

An information transmission method, which is applied to a network device, includes the following steps:

S10. Determine at least two different carriers used to transmit control information, where the control information includes carrier number information of the at least two different carriers;

S30. Send the control information to the terminal device through the at least two different carriers.
The method according to claim 1, wherein the at least two different carriers include at least one of the following:

At least two carriers located in different frequency bands or the same frequency band;

At least two carriers of different bandwidths;

At least two carriers with different transmission characteristics.
The method according to claim 1 or 2, wherein, before the step S10, the method further comprises:

S00: When a preset trigger condition is met, start a repeated transmission mode, where the repeated transmission mode indicates that the control information is transmitted through at least two different carriers.
The method according to claim 3, wherein the S00 step includes:

Obtain the signal quality of the current carrier;

When the signal quality is less than or equal to the first preset threshold, the repeated transmission mode is activated.
The method according to claim 4, wherein the signal quality includes at least one of the following:

Reference signal received power;

Reference signal reception quality.
The method according to claim 5, wherein the reference signal comprises: channel state indicator-reference signal.
The method according to claim 3, wherein the S00 step includes:

Obtain the utilization rate of physical downlink control channel transmission resources;

When the transmission resource usage rate of the physical downlink control channel is less than or equal to the second preset threshold, the repeated transmission mode is activated.
The method according to claim 3, wherein the S00 step includes:

If it is determined that the recipient of the control information satisfies the preset condition, the repeated transmission mode is activated.
The method according to claim 8, wherein the receiving party satisfies a preset condition, including at least one of the following:

The device type of the receiver is a preset device type;

The service type of the receiver is a preset service type;

The receiver meets the preset access level.
The method according to claim 3, wherein the S00 step includes:

Receiving request information sent by a terminal device, where the request information is used to request to start the repeated transmission mode;

The repeated transmission mode is activated.
The method according to claim 10, wherein the request information is carried by radio resource control signaling or physical layer signaling.
The method according to claim 3, wherein, after the step S00, the method further comprises:

Send first notification information to the terminal device, where the first notification information is used to indicate that the repeated transmission mode is currently activated.
The method according to claim 12, wherein the first notification information is carried through at least one of the following signaling:

Downlink control information, medium access control-control unit signaling, radio resource control signaling.
The method according to claim 3, wherein, after the S00 step, the method further comprises:

If it is determined that the preset trigger condition is not met, the repetitive transmission mode is turned off.
The method according to claim 14, wherein, after the repetitive transmission mode is turned off, the method further comprises:

Sending second notification information to the terminal device, where the second notification information is used to indicate that the repeated transmission mode is currently closed.
The method according to claim 15, wherein the second notification information is carried through at least one of the following signaling:

Downlink control information, medium access control-control unit signaling, radio resource control signaling.
An information transmission method, which is applied to a terminal device, includes the following steps:

S100. Receive control information through at least two different carriers, where the control information includes carrier number information of the at least two different carriers;

S200. Execute the control information.
The method according to claim 17, wherein the at least two different carriers include at least one of the following:

At least two carriers located in different frequency bands or the same frequency band;

At least two carriers of different bandwidths;

At least two carriers with different transmission characteristics.
The method according to claim 17, wherein the step S100 comprises:

Receiving the control information through any one of the at least two different carriers.
The method according to any one of claims 17 to 19, wherein, before the step S100, it further comprises:

S000. Send request information to a network device, where the request information is used to request to start a repeated transmission mode, and the repeated transmission mode is used to indicate that the control information is transmitted through at least two different carriers.
The method according to claim 20, wherein the request information is carried by radio resource control signaling or physical layer signaling.
The method according to claim 20, wherein, after the step S000, the method further comprises:

S300. Receive first notification information sent by a network device, where the first notification information is used to indicate that the repeated transmission mode is currently activated.
The method according to claim 22, wherein the first notification information is carried through at least one of the following signaling:

Downlink control information, medium access control-control unit signaling, radio resource control signaling.
The method according to claim 22, wherein, after the step S300, the method further comprises:

Receiving second notification information sent by the network device, where the second notification information is used to indicate that the repeated transmission mode is currently closed.
The method according to claim 24, wherein the second notification information is carried through at least one of the following signaling:

Downlink control information, medium access control-control unit signaling, radio resource control signaling.
A communication device, which includes: a memory and a processor;

The memory is used to store program instructions;

The processor is configured to call program instructions in the memory to execute the method according to claim 1 or 17.
A communication system, which includes:

For implementing the network device as claimed in claim 1; and

It is used to implement the terminal device according to claim 17.
A readable storage medium, wherein a computer program is stored on the readable storage medium; when the computer program is executed, the method according to claim 1 or 17 is realized.