CN111711993B - Method and device for transmitting information - Google Patents

Abstract

The application provides a method and a device for transmitting information, wherein the method comprises the following steps: the terminal equipment receives downlink data from the network equipment; the terminal equipment determines a first sequence when the downlink data is successfully received, or determines a second sequence when the downlink data is not successfully received, wherein the amplitude of the first sequence is different from the amplitude of the second sequence; the terminal device sends the first sequence or the second sequence to the network device. The application provides a method and a device for transmitting information, which are beneficial to improving the transmission efficiency of a system.

Description

A method and device for transmitting information

Technical Field

The present application relates to the field of communications, and more specifically, to a method and device for transmitting information.

Background technique

In an existing communication system, a terminal device receives downlink data and generates hybrid automatic repeat request (HARQ) feedback information, wherein the HARQ feedback information includes a positive acknowledgement message (ACK) and a negative acknowledgement message (NACK). A positive acknowledgement message indicates that the terminal device has successfully received (correctly received) the downlink data; a negative acknowledgement message indicates that the terminal device has not successfully received (incorrectly received) the downlink data.

Since the terminal device frequently sends HARQ feedback information, interference may occur between the HARQ feedback information sent by different terminal devices, thereby causing the network device to be unable to correctly receive the HARQ feedback information.

The network device may mistakenly interpret NACK as ACK, and then the network device no longer retransmits the failed transport block (TB), resulting in a decrease in the system's transmission efficiency and worsening the indicators of the communication system.

The network device may also mistakenly understand ACK as NACK, and then resend the TB that does not need to be retransmitted, causing the retransmitted TB to occupy additional system resources, blocking the transmission of other data, and also reducing the data transmission efficiency of the system.

Summary of the invention

The present application provides a method and device for transmitting information, which helps to improve the transmission efficiency of the system.

In a first aspect, a method for transmitting information is provided, the method comprising: a terminal device receives downlink data from a network device; the terminal device determines a first sequence or a second sequence, wherein the first sequence is a sequence determined when the terminal device successfully receives the downlink data; the second sequence is a sequence determined when the terminal device does not successfully receive the downlink data; the amplitude of the first sequence is different from the amplitude of the second sequence; the terminal device sends the first sequence or the second sequence to the network device.

In the method for transmitting information in the embodiment of the present application, the terminal device feeds back sequences of different amplitudes to the network device based on the reception status of downlink data, which helps to reduce interference with uplink control information, thereby helping to improve the transmission efficiency of the system.

In combination with the first aspect, in some implementations of the first aspect, the amplitude of the first sequence is smaller than the amplitude of the second sequence.

Due to the demand for low-latency and high-reliability services, new challenges have been raised for the design of wireless networks, especially the design of the fifth-generation mobile communication system and its evolved wireless communication system. For example, high requirements are placed on the delay and reliability of data transmission. For example, the success probability of data transmission is increased from greater than 90% to greater than 99.99%; and the delay of data transmission must be less than 0.5ms. In the transmission method of an embodiment of the present application, the amplitude of the first sequence obtained by the terminal device when the downlink data is correctly received is less than the amplitude of the second sequence obtained when the terminal device fails to successfully receive the downlink data, which helps to reduce the interference of the uplink control channel introduced by the affirmative response message, and helps to improve the transmission efficiency of the system in the scenario of low-latency and high-reliability services.

In combination with the first aspect, in certain implementations of the first aspect, the terminal device determines a first sequence or a second sequence, including: the terminal device determines feedback information, the feedback information being used to indicate whether the downlink data is received successfully or not; the terminal device maps the feedback information into complex-valued symbols according to a first modulation method; the terminal device determines the first sequence or the second sequence based on the complex-valued symbols.

In the information transmission method of the embodiment of the present application, the terminal device determines feedback information based on the reception status of downlink data, and can modulate different bit values of the feedback information into different complex-valued symbols, and determines sequences of different amplitudes through different complex-valued symbols, which helps to reduce interference with uplink control information, thereby helping to improve the transmission efficiency of the system.

In combination with the first aspect, in certain implementations of the first aspect, before the terminal device maps the feedback information into complex-valued symbols according to the first modulation mode, the method also includes: the terminal device receives first indication information from the network device, and the first indication information is used to indicate one or more modulation modes, and the one or more modulation modes include the first modulation mode.

In some possible implementations, the one or more modulation modes include an on-off keying (OOK) modulation mode. When the terminal device successfully receives downlink data, an all-zero sequence can be determined through the OOK modulation mode, which helps to reduce the interference of the uplink control channel caused by the affirmative response, thereby helping to improve the system transmission efficiency.

In some possible implementations, the first indication information includes information for indicating the one or more modulation modes.

In an embodiment of the present application, the network device may indicate one or more modulation modes to the terminal device by displaying an indication, so that the terminal device can determine a sequence according to the one or more modulation modes.

In some possible implementations, the first indication information includes information for indicating that the downlink data is high-reliability and low-latency data. After receiving the first indication information, the terminal device can determine that the network device wants it to generate complex-valued symbols and then generate a sequence through OOK modulation.

In an embodiment of the present application, the network device may indicate one or more modulation modes to the terminal device by implicit indication, so that the terminal device determines a sequence according to the one or more modulation modes.

In combination with the first aspect, in certain implementations of the first aspect, when the one or more modulation modes are multiple modulation modes, the method further includes: the terminal device determines the first modulation mode from the multiple modulation modes based on the feedback information.

In an embodiment of the present application, when the network device indicates multiple modulation modes, the terminal device can determine the corresponding modulation mode according to the bit length of the feedback information, so that the terminal device can map the bit value of the feedback information into a complex-valued symbol.

In some possible implementations, the multiple modulation modes include an OOK modulation mode.

In some possible implementations, when the bit length of the feedback information is 1 bit, the complex-valued symbol satisfies: Wherein, d(i) is the complex-valued symbol, b(i) is the bit value of the i+1th bit in the feedback information, and i is an integer greater than or equal to 0.

In an embodiment of the present application, when the bit value of the feedback information determined by the terminal device is 1, the value of the complex symbol is 0, and the terminal device can generate an all-zero sequence. The terminal device sends the all-zero sequence to the network device. When the network device receives the all-zero sequence, it can determine that the terminal device has successfully received the downlink data. This helps to reduce the interference to the uplink control channel introduced by the affirmative response message, thereby helping to improve the transmission efficiency of the system.

In some possible implementations, when the bit length of the feedback information is 2 bits, the complex-valued symbol satisfies: Wherein, d(i) is the complex-valued symbol, b(2i) is the bit value of the 2i-th bit in the feedback information, b(2i+1) is the bit value of the 2i+1-th bit in the feedback information, and i is an integer greater than or equal to 0.

In an embodiment of the present application, when the bit value of the feedback information determined by the terminal device is 11, the value of the complex symbol is 0, and then the terminal device can generate an all-zero sequence. The terminal device sends the all-zero sequence to the network device. When the network device receives the all-zero sequence, it can determine that the terminal device has successfully received the downlink data. This helps to reduce the interference to the uplink control channel introduced by the affirmative response message, thereby helping to improve the transmission efficiency of the system.

In combination with the first aspect, in certain implementations of the first aspect, the terminal device determines a first sequence or a second sequence, including: the terminal device determines feedback information, the feedback information being used to indicate whether the downlink data is received successfully or not; the terminal device determines the first sequence or the second sequence based on the feedback information and a preset mapping relationship, the preset mapping relationship being a mapping relationship between a bit value of the feedback information and a sequence.

In an embodiment of the present application, the terminal device determines feedback information based on the reception status of downlink data, and can directly map different feedback information into sequences of different amplitudes, which helps to reduce interference with uplink control information, thereby helping to improve the transmission efficiency of the system.

In combination with the first aspect, in certain implementations of the first aspect, the terminal device sends the first sequence or the second sequence to the network device, including: the terminal device sends the first sequence or the second sequence to the network device on one or more uplink resources for which it has successfully competed.

In some possible implementations, before the terminal device sends the first sequence or the second sequence to the network device, the method further includes: the terminal device competes for the one or more uplink resources from an uplink resource set corresponding to the downlink data.

In the method for transmitting information in the embodiment of the present application, a terminal device can compete for uplink resources in an uplink resource set in an unlicensed frequency band and send a sequence on the uplink resource for which the competition is successful. A network device can receive the sequence on each uplink resource in the uplink resource set, thereby determining whether the terminal device has successfully received the downlink data or not.

In a second aspect, a method for transmitting information is provided, the method comprising: a network device sends downlink data to a terminal device; when the network device receives a first sequence sent by the terminal device, the network device determines that the terminal device has successfully received the downlink data; when the network device receives a second sequence sent by the terminal device, the network device determines that the terminal device has not successfully received the downlink data; wherein the amplitude of the first sequence is different from the amplitude of the second sequence.

According to the information transmission method of the embodiment of the present application, the network device can determine the reception status of the terminal device for the downlink data based on the received sequence of different amplitudes, which helps to reduce the interference of the uplink control channel and improve the reception accuracy of the network device, thereby helping to improve the transmission efficiency of the system.

In combination with the second aspect, in some possible implementations of the second aspect, the amplitude of the first sequence is smaller than the amplitude of the second sequence.

In the method for transmitting information in the embodiment of the present application, when the terminal device successfully receives the downlink data, the amplitude of the sequence received by the network device is relatively small, which helps to reduce the interference of the uplink control channel introduced by the affirmative response, improves the reception accuracy of the network device, and thus helps to improve the transmission efficiency of the system.

In combination with the second aspect, in certain implementations of the second aspect, before the network device receives the first sequence or the second sequence sent by the terminal device, the method also includes: the network device sends first indication information to the terminal device, and the first indication information is used to indicate one or more modulation modes, and the one or more modulation modes are used to determine the first sequence or the second sequence.

In some possible implementations, the one or more modulation modes include an OOK modulation mode.

In combination with the second aspect, in some implementations of the second aspect, the first indication information includes information used to indicate the one or more modulation modes.

In combination with the second aspect, in certain implementations of the second aspect, the first indication information includes information for indicating that the downlink data is high-reliability and low-latency data.

In combination with the second aspect, in certain implementations of the second aspect, the network device receives the first sequence or the second sequence sent by the terminal device, including: the network device receives the first sequence or the second sequence sent by the terminal device on one or more uplink resources.

In some possible implementations, the network device receives the first sequence or the second sequence on an uplink resource set corresponding to the downlink data, and the uplink resource set includes the one or more uplink resources.

According to a third aspect, a method for transmitting information is provided, the method comprising: a terminal device receives downlink data sent by a network device, and the terminal device does not receive downlink control information for scheduling the downlink data; when the terminal device does not successfully receive the downlink data, the terminal device sends first information to the network device; when the terminal device successfully receives the downlink data, the terminal device does not send the first information to the network device.

In an embodiment of the present application, when the terminal device successfully receives downlink data, no information is sent to the network device, which helps to reduce the interference of the uplink control channel introduced by the affirmative response message, thereby helping to improve the spectrum utilization efficiency and the transmission efficiency of the system.

In some possible implementations, the first information is a sequence or a complex-valued symbol group.

In combination with the third aspect, in certain implementations of the third aspect, the terminal device sends the first information to the network device, including: the terminal device sends the first information to the network device on one or more uplink resources for which it has successfully competed.

In the method for transmitting information in the embodiment of the present application, a terminal device can compete for uplink resources in an uplink resource set in an unlicensed frequency band and send a sequence on the uplink resource for which the competition is successful. A network device can receive the sequence on each uplink resource in the uplink resource set, thereby determining whether the terminal device has successfully received the downlink data or not.

In a fourth aspect, a method for transmitting information is provided, the method comprising: a network device sends downlink data to a terminal device, and the network device does not send downlink control information for scheduling the downlink data to the terminal device; when the network device receives first information sent by the terminal device, the network device determines that the terminal device has not successfully received the downlink data; when the network device does not receive the first information sent by the terminal device, the network device determines that the terminal device has successfully received the downlink data.

According to the information transmission method of the embodiment of the present application, the network device can determine the reception status of the terminal device for the downlink data based on whether the first information is received or not, which helps to reduce the interference of the uplink control channel and improve the reception accuracy of the network device, thereby improving the transmission efficiency of the system.

In some possible implementations, the first information is a sequence or a complex-valued symbol group.

In combination with the fourth aspect, in certain implementations of the fourth aspect, the network device does not receive the first information sent by the terminal device, including: the network device does not receive the first information sent by the terminal device on each uplink resource of one or more uplink resources.

According to the information transmission method of the embodiment of the present application, after the network device has not received the first information on one or more uplink resources corresponding to the downlink data, it can be determined that the terminal device has successfully received the downlink data.

In combination with the fourth aspect, in certain implementations of the fourth aspect, the network device receives the first information sent by the terminal device, including: the network device receives the first information sent by the terminal device on one or more uplink resources.

In a fifth aspect, the present application provides an apparatus for transmitting information, comprising units or means for executing each step of the first aspect or the third aspect above.

In a sixth aspect, the present application provides an apparatus for transmitting information, comprising units or means for executing each step of the second aspect or the fourth aspect above.

In a seventh aspect, the present application provides a device for transmitting information, comprising at least one processor, which is connected to a memory to call a program in the memory to execute the method provided in the first aspect or the third aspect above. The memory may be located inside the device or outside the device. And the processor includes one or more.

In an eighth aspect, the present application provides a device for transmitting information, comprising at least one processor, which is connected to a memory to call a program in the memory to execute the method provided in the second aspect or the fourth aspect above. The memory may be located inside the device or outside the device. And the processor includes one or more.

In a ninth aspect, the present application provides an apparatus for transmitting information, comprising at least one processor and an interface circuit, wherein the at least one processor is used to execute the method provided in the first aspect or the third aspect above.

In a tenth aspect, the present application provides an apparatus for transmitting information, comprising at least one processor and an interface circuit, wherein the at least one processor is used to execute the method provided in the second aspect or the fourth aspect above.

In the eleventh aspect, a terminal device is provided, which includes the apparatus provided in the fifth aspect, or the terminal device includes the apparatus provided in the seventh aspect, or the terminal device includes the apparatus provided in the ninth aspect.

In a twelfth aspect, a network device is provided, which includes the apparatus provided in the sixth aspect, or the network device includes the apparatus provided in the eighth aspect, or the network device includes the apparatus provided in the tenth aspect.

In a thirteenth aspect, the present application provides a program, which, when executed by a processor, is used to execute the method provided in the first or third aspect above.

In a fourteenth aspect, the present application provides a program, which, when executed by a processor, is used to execute the method provided in the second aspect or the fourth aspect above.

In a fifteenth aspect, the present application provides a program product, such as a computer-readable storage medium, comprising the above program.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of an application scenario of the technical solution provided in an embodiment of the present application.

FIG2 is a schematic diagram of a network architecture provided in an embodiment of the present application.

FIG3 is a schematic diagram of another network architecture provided in an embodiment of the present application.

FIG. 4 is a schematic flowchart of a method for transmitting information provided in an embodiment of the present application.

FIG5 is a diagram showing the mapping relationship between complex-valued symbols and bit values of feedback information in a complex coordinate system.

FIG6 is another mapping relationship diagram of complex-valued symbols and bit values of feedback information in a complex coordinate system.

FIG. 7 is another mapping relationship diagram between complex-valued symbols and bit values of feedback information in a complex coordinate system.

FIG8 is another mapping relationship diagram between complex-valued symbols and bit values of feedback information in a complex coordinate system.

FIG. 9 is another mapping relationship diagram between complex-valued symbols and bit values of feedback information in a complex coordinate system.

FIG10 is another mapping relationship diagram between complex-valued symbols and bit values of feedback information in a complex coordinate system.

FIG11 is another mapping relationship diagram between complex-valued symbols and bit values of feedback information in a complex coordinate system.

FIG12 is another mapping relationship diagram of complex-valued symbols and bit values of feedback information in a complex coordinate system.

FIG13 is a schematic diagram of a sequence sent by a terminal device on an uplink resource for which competition has been successful, provided in an embodiment of the present application.

FIG. 14 is another schematic flowchart of the method for transmitting information provided in an embodiment of the present application.

FIG. 15 is a schematic diagram of a terminal device feeding back first information provided in an embodiment of the present application.

FIG. 16 is a schematic block diagram of an apparatus for transmitting information provided in an embodiment of the present application.

FIG. 17 is another schematic block diagram of an apparatus for transmitting information provided in an embodiment of the present application.

FIG. 18 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application.

FIG19 is a schematic diagram of the structure of a network device provided in an embodiment of the present application.

Figure 20 is another structural diagram of the network device provided in an embodiment of the present application.

Detailed ways

Below, some terms used in this application are explained:

1) Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that provides voice/data connectivity to users, such as a handheld device with wireless connection function, or a vehicle-mounted device, etc. At present, some examples of terminals are: mobile phones, tablet computers, laptops, PDAs, mobile internet devices (MID), wearable devices, virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, etc.

2) Network equipment is equipment in a wireless network, such as a radio access network (RAN) node that connects a terminal to a wireless network. At present, some examples of RAN nodes are: gNB, transmission reception point (TRP), evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), base band unit (BBU), or wireless fidelity (Wifi) access point (AP), etc. In a network structure, the network equipment may include a centralized unit (CU) node, a distributed unit (DU) node, or a RAN device including a CU node and a DU node.

3) "Multiple" means two or more, and other quantifiers are similar. "And/or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and/or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, for elements (element) in the singular form "a", "an", and "the", unless the context clearly stipulates otherwise, it does not mean "one or only one", but means "one or more than one". For example, "a device" means one or more such devices. Furthermore, at least one (at least one of)... "means one or any combination of subsequent associated objects, for example, "at least one of A, B and C" includes A, B, C, AB, AC, BC, or ABC.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: global system for mobile communications (GSM) system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system, general packet radio service (GPRS), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) system or new radio (NR), etc.

In an embodiment of the present application, a terminal device or a network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer. The hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and a memory (also called main memory). The operating system can be any one or more computer operating systems that implement business processing through a process, such as a Linux operating system, a Unix operating system, an Android operating system, an iOS operating system, or a windows operating system. The application layer includes applications such as a browser, an address book, a word processing software, and an instant messaging software. In addition, the embodiment of the present application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of the present application, as long as it can communicate according to the method provided in the embodiment of the present application by running a program that records the code of the method provided in the embodiment of the present application, for example, the execution subject of the method provided in the embodiment of the present application can be a terminal device or a network device, or a functional module in a terminal device or a network device that can call a program and execute a program.

In addition, various aspects or features of the present application can be implemented as methods, devices or products using standard programming and/or engineering techniques. The term "product" used in this application covers computer programs that can be accessed from any computer-readable device, carrier or medium. For example, computer-readable media may include, but are not limited to: magnetic storage devices (e.g., hard disks, floppy disks or tapes, etc.), optical disks (e.g., compact discs (CDs), digital versatile discs (DVDs), etc.), smart cards and flash memory devices (e.g., erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.). In addition, the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information. The term "machine-readable medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing and/or carrying instructions and/or data.

FIG1 is a schematic diagram of an application scenario of the technical solution provided by an embodiment of the present application. As shown in FIG1 , a terminal device 130 is connected to a wireless network to obtain services of an external network (such as the Internet) through the wireless network, or to communicate with other terminal devices through the wireless network. The wireless network includes a RAN 110 and a core network (CN) 120, wherein the RAN 110 is used to connect the terminal device 130 to the wireless network, and the CN 120 is used to manage the terminal device and provide a gateway for communicating with the external network.

It should be understood that the method for transmitting information provided in the present application can be applied to a wireless communication system, for example, the wireless communication system 100 shown in FIG1 . There is a wireless communication connection between two communication devices in the wireless communication system, and one of the two communication devices may correspond to the terminal device 130 shown in FIG1 , for example, it may be the terminal device 130 in FIG1 , or it may be a chip configured in the terminal device 130; the other of the two communication devices may correspond to the RAN 110 shown in FIG1 , for example, it may be the RAN 110 in FIG1 , or it may be a chip configured in the RAN 110.

FIG2 is a schematic diagram of a network architecture provided by an embodiment of the present application. As shown in FIG2 , the network architecture includes a CN device and a RAN device. The RAN device includes a baseband device and a radio frequency device, wherein the baseband device can be implemented by one node or by multiple nodes, and the radio frequency device can be implemented independently from the baseband device, or can be integrated into the baseband device, or partially remotely integrated into the baseband device. For example, in a Long Term Evolution (LTE) communication system, a RAN device (eNB) includes a baseband device and a radio frequency device, wherein the radio frequency device can be remotely arranged relative to the baseband device, for example, a remote radio unit (RRU) is remotely arranged relative to a BBU.

The communication between RAN equipment and terminal equipment follows a certain protocol layer structure. For example, the control plane protocol layer structure may include the functions of the radio resource control (RRC) layer, the packet data convergence protocol (PDCP) layer, the radio link control (RLC) layer, the media access control (MAC) layer, and the physical layer. The user plane protocol layer structure may include the functions of the PDCP layer, the RLC layer, the MAC layer, and the physical layer; in one implementation, the service data adaptation protocol (SDAP) layer may also be included above the PDCP layer.

The RAN device can implement the functions of the protocol layers such as radio resource control (RRC), packet data convergence protocol (PDCP), radio link control (RLC), and media access control (MAC) by one node; or the functions of these protocol layers can be implemented by multiple nodes; for example, in an evolutionary structure, the RAN device can include a centralized unit (CU) and a distributed unit (DU), and multiple DUs can be centrally controlled by one CU. As shown in Figure 2, the CU and DU can 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 in the CU, and the functions of the protocol layers below the PDCP, such as the RLC layer and the MAC layer, are set in the DU.

This division of the protocol layer is only an example. It can also be divided in other protocol layers, such as dividing in the RLC layer, setting the functions of the RLC layer and the protocol layers above in the CU, and the functions of the protocol layers below the RLC layer in the DU; or dividing in a certain protocol layer, for example, setting some functions of the RLC layer and the functions of the protocol layers above the RLC layer in the CU, and setting the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer in the DU. In addition, it can also be divided in other ways, such as dividing by latency, setting the functions whose processing time needs to meet the latency requirements in the DU, and the functions that do not need to meet the latency requirements in the CU.

In addition, the radio frequency device can be remote and not placed in the DU, or can be integrated in the DU, or can be partially remote and partially integrated in the DU, without any limitation here.

Please continue to refer to Figure 3, which shows a schematic diagram of another network architecture provided by an embodiment of the present application. Compared with the architecture shown in Figure 2, the control plane (CP) and user plane (UP) of the CU can also be separated and divided into different entities for implementation, namely, the control plane CU entity (CU-CP entity) and the user plane CU entity (CU-UP entity).

In the above network architecture, the signaling generated by the CU can be sent to the terminal device through the DU, or the signaling generated by the terminal device can be sent to the CU through the DU. The DU can directly encapsulate the signaling through the protocol layer and transparently transmit it to the terminal device or CU without parsing it. In the following embodiments, if the transmission of such signaling between the DU and the terminal device is involved, at this time, the sending or receiving of the signaling by the DU includes this scenario. For example, the signaling of the RRC or PDCP layer will eventually be processed as the signaling of the PHY layer and sent to the terminal device, or it will be converted from the received signaling of the PHY layer. Under this architecture, the signaling of the RRC or PDCP layer can also be considered to be sent by the DU, or sent by the DU and the radio frequency.

In the above embodiments, the CU is divided into a network device on the RAN side. In addition, the CU may also be divided into a network device on the CN side, which is not limited here.

The devices in the following embodiments of the present application may be located in a terminal device according to the functions implemented. When the above CU-DU structure is adopted, the network device may be a CU node, or a DU node, or a RAN device including a CU node and a DU node.

FIG4 shows a schematic flow chart of a method 200 for transmitting information according to an embodiment of the present application. As shown in FIG4 , the execution subject of the method 200 may be a device for transmitting information (for example, a terminal device or a chip or device of a terminal device, a network device or a chip or device of a network device), and the method 200 includes:

S210, the network device sends downlink data to the terminal device, and the terminal device receives the downlink data sent by the network device.

Optionally, the downlink data is carried on a physical downlink shared channel (physical downlink shared channel, PDSCH).

It should be understood that the terminal device receiving downlink data from the network device can also be understood as the terminal device acquiring the time-frequency resources of the PDSCH and receiving the PUSCH.

It should also be understood that the downlink data may include one or more transport blocks (TB).

S220, the terminal device determines a first sequence or a second sequence, wherein the first sequence is a sequence determined when the terminal device successfully receives the downlink data; the second sequence is a sequence determined when the terminal device does not successfully receive the downlink data; the amplitude of the first sequence is different from the amplitude of the second sequence.

It should be understood that in the embodiment of the present application, the first sequence and the second sequence may include multiple elements. Since the amplitude of each element in the first sequence may be the same, the amplitude of each element in the second sequence may be the same, and the difference between the amplitude of the first sequence and the amplitude of the second sequence can also be understood as the difference between the amplitude of any element in the first sequence and the amplitude of any element in the second sequence. Optionally, the value of the amplitude includes zero.

It should also be understood that the terminal device can send the first sequence or the second sequence to the network device according to whether each transmission block in the downlink data is received successfully or not.

For example, when the downlink data includes only one transmission block, if the terminal device successfully receives the transmission block, the terminal device can send a first sequence to the network device; if the terminal device does not successfully receive the transmission block, the terminal device can send a second sequence to the network device.

For another example, when the downlink data includes two transmission blocks, if the terminal device successfully receives both transmission blocks, the terminal device can send a first sequence to the network device; if the terminal device successfully receives one of the two transmission blocks and fails to receive the other transmission block, or fails to receive both transmission blocks, the terminal device can send a second sequence to the network device.

It should be understood that when the downlink data includes two transmission blocks, the terminal device can also send a corresponding sequence to the network device according to whether each transmission block is received successfully or not.

It should also be understood that the above examples are only used as an example in which the downlink data includes one or two transmission blocks. The downlink data may also include three or more transmission blocks, and the implementation examples of the present application are not limited to this. For example, in the case where the downlink data includes three transmission blocks (transmission block 1, transmission block 2, and transmission block 3), the terminal device may send a sequence to the network device on two different uplink resources (uplink resource 1 and uplink resource 2). Exemplarily, the terminal device may send a first sequence on uplink resource 1 when both transmission block 1 and transmission block 2 are received successfully; the terminal device may send a second sequence on uplink resource 2 when transmission block 3 is not received successfully.

Optionally, the terminal device determines the first sequence or the second sequence, including:

The terminal device determines feedback information, where the feedback information is used to indicate whether the downlink data is successfully received or not successfully received;

The terminal device maps the feedback information into complex-valued symbols according to the first modulation mode;

The terminal device determines the first sequence or the second sequence according to the complex-valued symbol.

Optionally, the terminal device may generate 1 bit of feedback information for each transmission block in the downlink data.

Optionally, the terminal device receives the downlink data but does not receive downlink control information (DCI) scheduling the downlink data, and the terminal device generates 1 bit of feedback information for the downlink data.

Optionally, the terminal device receives downlink control information for scheduling downlink data, where the downlink control information instructs the terminal device to periodically receive downlink data, and the terminal device generates 1 bit of feedback information for the downlink data.

For example, the terminal device receives downlink data and downlink control information for scheduling the downlink data in the first cycle, and the downlink control information indicates that the terminal device periodically receives downlink data. In subsequent cycles, the terminal device only receives downlink data but does not receive downlink control information for scheduling downlink data.

It should be understood that in the embodiment of the present application, the terminal device only receives downlink data but does not receive downlink control information that schedules the downlink data. It can also be understood that the terminal device receives PDSCH but does not receive physical downlink control channel (PDCCH) that schedules the PDSCH.

Optionally, when the downlink data includes multiple transmission blocks, the terminal device may also generate 2 bits of feedback information for two of the transmission blocks.

Optionally, different values of the bits in the feedback information are used to represent different response messages. The response information includes a negative acknowledgement message (NACK), which may indicate that the terminal device has failed to receive the downlink data or has not received it successfully; and a positive acknowledgement message (ACK), which may indicate that the terminal device has successfully received the downlink data.

For example, a bit value of 0 in the feedback information indicates a negative acknowledgement message (NACK); a bit value of 1 in the feedback information indicates a positive acknowledgement message (ACK).

For example, the downlink data includes one or more transport blocks, and the terminal device can generate 1 bit of feedback information for each of the one or more transport blocks. If the terminal device successfully receives the transport block, the bit value of the feedback information is determined to be 1; if the terminal device fails to receive the transport block, the bit value of the feedback information is determined to be 0.

For another example, the downlink data includes two transmission blocks. If the terminal device successfully receives both transmission blocks, the bit value of the feedback information is determined to be 1; if the terminal device successfully receives only one of the two transmission blocks, the bit value of the feedback information is determined to be 0; if the terminal device fails to receive both transmission blocks, the bit value of the feedback information is determined to be 0.

For another example, the downlink data includes two transmission blocks. If the terminal device successfully receives both transmission blocks, the bit value of the feedback information is determined to be 11; if the terminal device only successfully receives the first of the two transmission blocks and fails to receive the second transmission block, the bit value of the feedback information is determined to be 10; if the terminal device only fails to receive the first of the two transmission blocks and successfully receives the second transmission block, the bit value of the feedback information is determined to be 01; if the terminal device fails to receive both transmission blocks, the bit value of the feedback information is determined to be 00.

After the terminal device determines the feedback information, it can map the bits of the feedback information into complex-valued symbols according to the first modulation method.

Optionally, before the terminal device maps the bits of the feedback information into complex-valued symbols according to the first modulation mode, the method further includes:

The terminal device receives first indication information sent by the network device, where the first indication information is used to indicate one or more modulation modes, and the one or more modulation modes include the first modulation mode.

The modulation method in the implementation of the present application may include a binary phase shift keying (BPSK) modulation method, a quadrature phase shift keying (QPSK) modulation method or an on-off keying (OOK) modulation method.

It should be understood that the OOK modulation method can also be called a binary on-off keying modulation method, or can also be called a binary amplitude keying modulation method.

It should also be understood that the OOK modulation method may also include a 1-bit OOK modulation method and a multi-bit OOK modulation method.

Optionally, the network device may indicate the one or more modulation modes by displaying an indication.

Optionally, the first indication information includes information for indicating the one or more modulation modes.

For example, the first indication information includes configuration information of the OOK modulation mode, wherein the configuration information of the OOK modulation mode includes at least one of phase offset information or amplitude information under the OOK modulation mode.

Optionally, the first indication information is carried in RRC signaling.

Optionally, the network device may indicate the one or more modulation modes by implicit indication.

Exemplarily, the network device may carry the first indication information in a cyclic redundancy check code (CRC) in downlink control information (DCI), where the first indication information is used to indicate that the downlink data is high-reliability and low-latency data.

Optionally, when the first indication information indicates multiple modulation modes, the terminal device can determine the modulation mode according to the bit length of the feedback information.

For example, the first indication information is used to indicate an OOK modulation mode, and the OOK modulation mode may include a 1-bit OOK modulation mode and a multi-bit OOK modulation mode. When the terminal device determines that the bit length of the feedback information is 1 bit, the terminal device maps the bit value of the feedback information to a complex-valued symbol according to the 1-bit OOK modulation mode; when the terminal device determines that the bit length of the feedback information is 2 bits, the terminal device maps the bit value of the feedback information to a complex-valued symbol according to the multi-bit OOK modulation mode.

For another example, the first indication information indicates a binary phase shift keying (BPSK) modulation mode and an OOK modulation mode. When the terminal device determines that the bit length of the feedback information is 1 bit, the terminal device maps the bit value of the feedback information to a complex value symbol according to the BPSK modulation mode; when the terminal device determines that the bit length of the feedback information is 2 bits, the terminal device maps the bit value of the feedback information to a complex value symbol according to a multi-bit OOK modulation mode.

The above introduces the process of the terminal device determining the modulation method in the embodiment of the present application. The following describes the process of the terminal device modulating the feedback information through the OOK modulation method in the embodiment of the present application.

If the terminal device determines that the modulation mode is the OOK modulation mode, the bit value of the i+1th bit in the feedback information bit is b(i), and the complex value symbol d(i) satisfies the following formula (1):

The mapping relationship between the complex-valued symbol d(i) and the feedback information bit value is shown in FIG5 .

For example, if the feedback information bit value is 0, then the complex value symbol mapped by b(i) is This is shown in Figure 6 in the complex coordinate system.

For another example, if the feedback information bit takes a value of 1, then the complex-valued symbol d(i) mapped by b(i)=0, as shown in FIG7 in the complex coordinate system.

If the modulation mode determined by the terminal device is a multi-bit OOK modulation mode, the feedback information bit pair (the bit value b(2i) of the 2i-th bit in the feedback information and the bit value b(2i+1) of the 2i+1-th bit in the feedback information) satisfies:

The mapping relationship between the complex-valued symbol d(i) and the feedback information bit pair is shown in FIG8 .

For example, the feedback information bit pair takes the value of b(2i)=0, b(2i+1)=0, then the complex value symbol mapped by b(2i) and b(2i+1) is This is shown in Figure 9 in the complex coordinate system.

For another example, the feedback information bit pair takes the value of b(2i)=0, b(2i+1)=1, then the complex-valued symbol d(i)=-1 mapped by b(2i) and b(2i+1), as shown in FIG10 in the complex coordinate system.

For another example, the feedback information bit pair takes the value of b(2i)=1, b(2i+1)=0, then the complex-valued symbol d(i)=-j mapped by b(2i) and b(2i+1) is shown in FIG11 in the complex coordinate system.

For another example, the feedback information bit pair takes the value of b(2i)=1, b(2i+1)=1, then the complex-valued symbol d(i)=0 mapped by b(2i) and b(2i+1), as shown in FIG12 in the complex coordinate system.

After determining the complex-valued symbol, the terminal device may determine the first sequence or the second sequence according to the complex-valued symbol.

Exemplarily, the terminal device may determine the block of complex-valued block according to formula (3):

Where y(n) is a complex-valued symbol block, d(0) is a complex-valued symbol, is a low peak-to-average power ratio (PAPR) sequence, The number of subcarriers included in the resource block.

The terminal device may determine the first sequence or the second sequence according to formula (4):

in, is the first sequence or the second sequence, w _i (m) is an orthogonal sequence, It is the number of continuous orthogonal frequency division multiplexing (OFDM) symbols in the time domain occupied by the uplink control channel.

It should be understood that the above formulas (3) and (4) are a possible implementation method for determining the first sequence or the second sequence. There may be other implementation methods to determine the first sequence or the second sequence, and the embodiments of the present application are not limited thereto.

For example, when the terminal device generates 1-bit feedback information and the modulation mode is 1-bit OOK modulation mode, when the bit value of the feedback information is 1, the complex value symbol d(i)=0, and the terminal device can determine the first sequence according to formula (3) and formula (4). is {exp(-3π/4j), exp(π/4j+α), exp(-3π/4j+2α), exp(-3π/4j+3α), exp(-3π/4j+4α), exp(3π/4j+5α), exp(-3π/4j+6α), exp(-π/4j+7α), exp(π/4j+8α), exp(π/4j+9α), exp(π/4j+10α), exp(-3π/4j+11α)}, then y(n)＝{0 0 0 0 0 0 0 0 0 0 0 0}; further, the first sequence can be obtained according to formula (4). Where α is the phase offset. The amplitude of the first sequence is 0.

It should be understood that the amplitude of the first sequence being 0 can also be understood as the amplitude of each element in the first sequence being 0.

When the bit value of the feedback information is 0, the complex symbol At this time, the terminal device can determine the second sequence according to formula (3) and formula (4). is {exp(-3π/4j),exp(π/4j+α),exp(-3π/4j+2α),exp(-3π/4j+3α),exp(-3π/4j+4α),exp(3π/4j+5α),exp(-3π/4j+6α),exp(-π/4j+7α),exp(π/4j+8α),exp(π/4j+9α),exp(π/4j+10α),exp(-3π/4j+11α)}, then y(n)={exp(-3π/4j),exp(π/4j+α),exp(-3π/4j+2α),exp(-3π/4j+3α),exp(-3π/4j+4α),exp(3π/4j+5α),exp(-3π/4j+6α),exp(-π/4j+7α),exp(π/4j+8α),exp(π/4j+9α),exp(π/4j+10α),exp(-3π/4j+11α)} p(-2π/4j),exp(2π/4j+α),exp(-2π/4j+2α),exp(-2π/4j+3α),exp(-2π/4j+4α),exp(πj+5α),exp(-2π/4j+6α),exp(7α),exp(2π/4j+8α),exp(2π/4j+9α),exp(2π/4j+10α),exp(-2π/4j+11α)}; further, the second sequence can be obtained according to formula (4). The amplitude of the second sequence is 1.

It should be understood that the amplitude of the second sequence being 1 can also be understood as the amplitude of each element in the second sequence being 1.

For another example, when the terminal device generates 2-bit feedback information and the modulation mode is a multi-bit OOK modulation mode, when the bit value of the feedback information is 11, the complex value symbol d(i)=0, and the terminal device can determine the first sequence according to formula (3) and formula (4). is {exp(-3π/4j),exp(π/4j+α),exp(-3π/4j+2α),exp(-3π/4j+3α),exp(-3π/4j+4α),exp(3π/4j+5α),exp(-3π/4j+6α),exp(-π/4j+7α),exp(π/4j+8α),exp(π/4j+9α),exp(π/4j+10α),exp(-3π/4j+11α)}, then y(n)＝{0 0 0 0 0 0 0 0 0 0 00}; further, the first sequence can be obtained according to formula (4). The amplitude of the first sequence is 0.

When the bit value of the feedback information is 01, the complex value symbol d(i) = -1, and the terminal device can determine the second sequence according to formula (3) and formula (4). is {exp(-3π/4j),exp(π/4j+α),exp(-3π/4j+2α),exp(-3π/4j+3α),exp(-3π/4j+4α),exp(3π/4j+5α),exp(-3π/4j+6α),exp(-π/4j+7α),exp(π/4j+8α),exp(π/4j+9α),exp(π/4j+10α),exp(-3π/4j+11α)}, then y(n)＝{exp( 1π/4j), exp(5π/4j+α), exp(1π/4j+2α), exp(1π/4j+3α), exp(1π/4j+4α), exp(7π/4j+5α), exp(1π/4j+6α), exp(3π/4j+7α), exp(5π/4j+8α), exp(5π/4j+9α), exp(5π/4j+10α), exp(1π/4j+11α)}; further, the second sequence can be obtained according to formula (4). The amplitude of the second sequence is 1.

When the bit value of the feedback information is 10, the complex value symbol d(i) = -j, and the terminal device can determine the second sequence according to formula (3) and formula (4). is {exp(-3π/4j),exp(π/4j+α),exp(-3π/4j+2α),exp(-3π/4j+3α),exp(-3π/4j+4α),exp(3π/4j+5α),exp(-3π/4j+6α),exp(-π/4j+7α),exp(π/4j+8α),exp(π/4j+9α),exp(π/4j+10α),exp(-3π/4j+11α)}, then y(n)={exp(-5π /4j),exp(-π/4j+α),exp(-5π/4j+2α),exp(-5π/4j+3α),exp(-5π/4j+4α),exp(1π/4j+5α),exp(-5π/4j+6α),exp(-3π/4j+7α),exp(-π/4j+8α),exp(-π/4j+9α),exp(-π/4j+10α),exp(-5π/4j+11α)}; further, the second sequence can be obtained according to formula (4). The amplitude of the second sequence is 1.

When the bit value of the feedback information is 00, the complex value symbol The terminal device can determine the second sequence according to formula (3) and formula (4). is {exp(-3π/4j),exp(π/4j+α),exp(-3π/4j+2α),exp(-3π/4j+3α),exp(-3π/4j+4α),exp(3π/4j+5α),exp(-3π/4j+6α),exp(-π/4j+7α),exp(π/4j+8α),exp(π/4j+9α),exp(π/4j+10α),exp(-3π/4j+11α)}, then y(n)={exp(-3π/4j),exp(π/4j+α),exp(-3π/4j+2α),exp(-3π/4j+3α),exp(-3π/4j+4α),exp(3π/4j+5α),exp(-3π/4j+6α),exp(-π/4j+7α),exp(π/4j+8α),exp(π/4j+9α),exp(π/4j+10α),exp(-3π/4j+11α)} p(-2π/4j),exp(2π/4j+α),exp(-2π/4j+2α),exp(-2π/4j+3α),exp(-2π/4j+4α),exp(πj+5α),exp(-2π/4j+6α),exp(7α),exp(2π/4j+8α),exp(2π/4j+9α),exp(2π/4j+10α),exp(-2π/4j+11α)}; further, the second sequence can be obtained according to formula (4). The amplitude of the second sequence is 1.

In the embodiment of the present application, since the amplitude of each element in the first sequence is the same and the amplitude of each element in the second sequence is the same, the amplitude of the first sequence is different from that of the second sequence, which can also be understood as the amplitude of any element in the first sequence is different from the amplitude of any element in the second sequence.

In an embodiment of the present application, the terminal device can determine sequences of different amplitudes based on whether the downlink data is received successfully or unsuccessfully, which helps to reduce the interference of the uplink control channel introduced by the affirmative response message, thereby helping to improve the transmission efficiency of the system.

It should be understood that the above lists the process of determining sequences of different amplitudes through formulas (1) to (4) by way of example, wherein when the terminal device successfully receives downlink data, the amplitude of the first sequence determined by the terminal device is 0; when the terminal device does not successfully receive the downlink data, the amplitude of the second sequence determined by the terminal device is 1.

The first sequence and the second sequence may also be determined in other ways. For example, taking the bit length of the feedback information as 1 bit as an example, the corresponding complex-valued symbol may be determined by formula (5):

Among them, a is greater than 0 and less than 1.

After the complex-valued symbol is determined by formula (5), the first sequence or the second sequence can be determined by (3) and (4).

Exemplarily, y(n)={a·exp(-2π/4j), a·exp(2π/4j+α), a·exp(-2π/4j+2α), a·exp(-2π/4j+3α), a·exp(-2π/4j+4α), a·exp(πj+5α), a·exp(-2π/4j+6α), a·exp(7α), a·exp(2π/4j+8α), a·exp(2π/4j+9α), a·exp(2π/4j+10α), a·exp(-2π/4j+11α)} can be determined by formula (3). Further, the first sequence can be obtained according to formula (4). The amplitude of the first sequence is a.

Exemplarily, y(n)={(1+a)·exp(-2π/4j), (1+a)·exp(2π/4j+α), (1+a)·exp(-2π/4j+2α), (1+a)·exp(-2π/4j+3α), (1+a)·exp(-2π/4j+4α), (1+a)·exp(πj+5α), (1+a)·exp(-2π/4j+6α), (1+a)·exp(7α), (1+a)·exp(2π/4j+8α), (1+a)·exp(2π/4j+9α), (1+a)·exp(2π/4j+10α), (1+a)·exp(-2π/4j+11α)} can be determined by formula (3). Further, the second sequence can be obtained according to formula (4). The amplitude of the second sequence is 1+a.

The above describes a method for determining the first sequence or the second sequence by using complex-valued symbols. The following describes another method for determining the first sequence or the second sequence.

Optionally, the terminal device determines the first sequence or the second sequence, including:

The terminal device determines feedback information, where the feedback information is used to indicate whether the downlink data is successfully received or not successfully received;

The terminal device determines the first sequence or the second sequence based on the feedback information and a preset mapping relationship, where the preset mapping relationship is a mapping relationship between the bit value of the feedback information and the sequence.

Table 1 shows a mapping relationship between the bit length and sequence of feedback information.

Table 1 Mapping relationship between bit values and sequences of feedback information

Bit value of feedback information 0 1 sequence Second sequence First sequence

For example, when the bit value of the feedback information is 1, the terminal device may determine the first sequence to be sent according to Table 1, and the first sequence may be {0 0 0 0 0 0 0 0 0 0 0}. The amplitude of the first sequence is 0.

For example, when the bit value of the feedback information is 0, the terminal device can determine the second sequence to be sent according to Table 1, and the second sequence can be {exp(-2π/4j), exp(2π/4j+α), exp(-2π/4j+2α), exp(-2π/4j+3α), exp(-2π/4j+4α), exp(πj+5α), exp(-2π/4j+6α), exp(7α), exp(2π/4j+8α), exp(2π/4j+9α), exp(2π/4j+10α), exp(-2π/4j+11α)}. The amplitude of the second sequence is 1.

Table 2 shows another mapping relationship between bit values and sequences of feedback information.

Table 2 Mapping relationship between bit values and sequences of feedback information

For example, when the bit value of the feedback information is 11, the terminal device may determine the first sequence to be sent according to Table 2, and the first sequence may be {0 0 0 0 0 0 0 0 0 0 0}. The amplitude of the first sequence is 0.

For another example, when the bit value of the feedback information is 10, 01 or 00, the terminal device can determine the second sequence to be sent according to Table 2, and the second sequence can be {exp(-2π/4j), exp(2π/4j+α), exp(-2π/4j+2α), exp(-2π/4j+3α), exp(-2π/4j+4α), exp(πj+5α), exp(-2π/4j+6α), exp(7α), exp(2π/4j+8α), exp(2π/4j+9α), exp(2π/4j+10α), exp(-2π/4j+11α)}. The amplitude of the second sequence is 1.

Table 3 shows another mapping relationship between bit values and sequences of feedback information.

When the bit value of the feedback information is 11, the terminal device can determine the first sequence to be sent according to Table 3, and the first sequence can be the same as the first sequence in the above Table 2.

When the bit value of the feedback information is 00, the terminal device can determine the second sequence to be sent according to Table 3; when the bit value of the feedback information is 01, the terminal device can determine the third sequence to be sent according to Table 3; when the bit value of the feedback information is 10, the terminal device can determine the fourth sequence to be sent according to Table 3. The amplitudes of the second sequence, the third sequence and the fourth sequence can be the same; or the amplitudes of the second sequence, the third sequence and the fourth sequence can be partially the same; or the amplitudes of the second sequence, the third sequence and the fourth sequence can be different. The amplitude of the first sequence is different from the amplitude of any sequence of the second sequence, the third sequence and the fourth sequence.

In an embodiment of the present application, the terminal device can determine sequences of different amplitudes based on whether the downlink data is received successfully or unsuccessfully, and the amplitude of the sequence corresponding to the affirmative acknowledgement message is smaller than the amplitude of the sequence corresponding to the negative acknowledgement message, which helps to reduce the interference to the uplink control channel introduced by the affirmative acknowledgement message, thereby helping to improve the transmission efficiency of the system.

S230, the terminal device sends the first sequence or the second sequence to the network device, and the network device receives the first sequence or the second sequence sent by the terminal device.

Optionally, the terminal device sends the first sequence or the second sequence to the network device on a predetermined uplink resource, and the network device receives the first sequence or the second sequence on the predetermined uplink resource.

The terminal device can send the first sequence or the second sequence to the network device on the predetermined uplink resources without competing for uplink resources to send the first sequence or the second sequence.

It should be understood that the predetermined uplink resource may be an uplink resource agreed upon in advance by the terminal device and the network device.

Optionally, the terminal device sends the first sequence or the second sequence to the network device, including:

The terminal device sends the first sequence or the second sequence to the network device on one or more uplink resources for which it has successfully competed.

In the unlicensed frequency band, the terminal device needs to compete for access, and only if the competition is successful can the first sequence or the second sequence be sent to the network device on the uplink resource for which the competition is successful.

Optionally, there is a corresponding relationship between the downlink data and an uplink resource set, and the uplink resource set includes one or more uplink resources.

When receiving the downlink data, the terminal device can determine the uplink resource set corresponding to the downlink data, and the terminal device can compete for one or more uplink resources from the uplink resource set. The terminal device can send the first sequence or the second sequence to the network device on at least part of the one or more uplink resources.

For example, when the terminal device successfully receives the downlink data, it can determine the first sequence, and the uplink resource set corresponding to the downlink data includes uplink resource 1, uplink resource 2 and uplink resource 3. The terminal device can obtain uplink resource 1 and uplink resource 2 through competition. The terminal device can send the first sequence on uplink resource 1 and uplink resource 2 for which the competition is successful; or, the terminal device can also send the first sequence on uplink resource 1 for which the competition is successful; or, the terminal device can also send the first sequence on uplink resource 2 for which the competition is successful.

Figure 13 shows a schematic diagram of a terminal device sending a sequence on an uplink resource for which it has successfully competed. As shown in Figure 13, the network device sends downlink data to the terminal device, and the terminal device does not successfully receive the downlink data. The terminal device can compete for uplink resource 1, uplink resource 2, and uplink resource 3. If the terminal device successfully competes for uplink resource 3, it can send the second sequence on uplink resource 3.

S240, when the network device receives the first sequence sent by the terminal device, the network device determines that the terminal device has successfully received the downlink data; when the network device receives the second sequence sent by the terminal device, the network device determines that the terminal device has not successfully received the downlink data.

Optionally, when the network device receives the first sequence on the predetermined uplink resource, the network device determines that the terminal device has successfully received the downlink data; when the network device receives the second sequence sent by the terminal device on the predetermined uplink resource, the network device determines that the terminal device has not successfully received the downlink data.

Optionally, the network device receives a first sequence sent by the terminal device, including:

The network device receives the first sequence on each uplink resource in the uplink resource set.

It should be understood that the uplink resource set may include one or more uplink resources, and there is a corresponding relationship between the downlink data and the uplink resource set. The network device may configure the uplink resource set to allow the terminal device to compete, and the terminal device may compete to obtain one or more uplink resources from the uplink resource set, and send the first sequence on the one or more uplink resources, and the network device needs to receive on each uplink resource in the uplink resource set.

Optionally, the network device receives a second sequence sent by the terminal device, including:

The network device receives the second sequence on each uplink resource in the uplink resource set.

In the method for transmitting information in the embodiment of the present application, the terminal device can determine sequences of different amplitudes according to whether the downlink data is received successfully or unsuccessfully, which helps to reduce the interference of the uplink control channel caused by the response message corresponding to the sequence with lower amplitude, and improves the reception accuracy of the network device.

FIG14 shows a schematic flow chart of a method 300 for transmitting information according to an embodiment of the present application. As shown in FIG14 , the execution subject of the method 300 may be a device for transmitting information (for example, a terminal device or a chip or device of a terminal device, a network device or a chip or device of a network device), and the method 300 includes:

S310, the terminal device receives downlink data sent by the network device.

For example, the terminal device can receive downlink data sent by the network device according to a predetermined period. The terminal device can receive downlink data 1 and the DCI that schedules the downlink data in the first predetermined period, and the DCI can indicate that the terminal device receives downlink data in each subsequent predetermined period. In each subsequent predetermined period, the terminal device receives downlink data and does not receive the DCI that schedules the downlink data. For example, in the second predetermined period, the terminal device can receive downlink data 2 and does not receive the DCI that schedules the downlink data 2; in the third predetermined period, the terminal device can receive downlink data 3 and does not receive the DCI that schedules the downlink data 3.

For another example, the network device configures the periodic transmission of downlink data through high-level signaling (for example, RRC signaling). In this case, the network device periodically sends downlink data to the terminal device, and there is no need to send downlink control information. The terminal device receives downlink data on each resource for receiving downlink data and does not receive the downlink control information for scheduling the data. For another example, the network device sends downlink data and DCI for scheduling downlink data according to a predetermined period, the terminal device can receive the downlink data sent by the network device according to a predetermined period, and the terminal device receives the DCI for scheduling the downlink data before receiving the downlink data within each preset period.

S320, when the terminal device fails to successfully receive the downlink data, the terminal device sends the first information to the network device; when the terminal device successfully receives the downlink data, the terminal device does not send the first information to the network device.

For example, in the case where the network device only sends DCI for scheduling downlink data within the first predetermined period, or the case where the network device periodically sends downlink data to the terminal device without sending DCI, the terminal device can send first information to the network device when it does not successfully receive the downlink data; when the terminal device successfully receives the downlink data, the terminal device does not send the first information to the network device.

FIG15 is a schematic diagram showing a terminal device feeding back first information. As shown in FIG15 , in the first predetermined cycle, the terminal device successfully receives downlink data 1, and the terminal device does not send the first information on uplink resource 1; in the Nth predetermined cycle, the terminal device does not successfully receive downlink data N, and the terminal device sends the first information on uplink resource N. N is a positive integer greater than 1.

Optionally, the first information may be a complex-valued symbol group.

When the terminal device fails to successfully receive the downlink data, the terminal device may first determine the feedback information bit (for example, the feedback information bit may be 0), and the terminal device may perform channel coding and modulation on the feedback information bit to generate a complex-valued symbol group, and send the complex-valued symbol group to the network device; when the terminal device successfully receives the downlink data, the terminal device may not generate the feedback information bit, and thus will not send the complex-valued symbol group to the network device.

Optionally, the first information may be a sequence.

When the first information is a sequence, when the terminal device fails to successfully receive the downlink data, the terminal device may send a second sequence to the network device; when the terminal device successfully receives the downlink data, the terminal device may not send the first information to the network device.

It should be understood that when the terminal device fails to successfully receive the downlink data, it can first determine the second sequence. The process of determining the second sequence can refer to the description in the above method 200, and for the sake of brevity, it will not be repeated here.

It should also be understood that when the terminal device successfully receives the downlink data, the terminal device may not send information to the network device. It can also be understood that when the terminal device successfully receives the downlink data, it does not generate the corresponding feedback information bit, and thus will not send the first information to the network device.

For example, the terminal device determines that the bit length of the feedback information is 1 bit. When the bit value of the feedback information is 0, the terminal device sends the second sequence to the network device; when the bit value of the feedback information is 1, the terminal device does not send the first information to the network device.

For another example, the terminal device determines that the bit length of the feedback information is 2 bits. When the bit value of the feedback information is 00, 01 or 10, the terminal device sends the second sequence to the network device; when the bit value of the feedback information is 11, the terminal device may not send the first information to the network device.

For another example, the terminal device determines that the bit length of the feedback information is 2 bits. When the bit value of the feedback information is 00, the terminal device sends the second sequence to the network device; when the bit value of the feedback information is 01, the terminal device sends the third sequence to the network device; when the bit value of the feedback information is 10, the terminal device sends the fourth sequence to the network device; when the bit value of the feedback information is 11, the terminal device may not send the first information to the network device.

It should be understood that the second sequence, the third sequence and the fourth sequence may refer to the description in the above method 200, and for the sake of brevity, they are not repeated here.

It should also be understood that in the embodiment of the present application, when the terminal device determines that the downlink data is received successfully, the terminal device does not send the first information to the network device, which can also be understood as the terminal device does not send any information to the network device.

It should also be understood that, when the terminal device successfully receives the downlink data, the terminal device does not generate the corresponding feedback information bit and has no other uplink feedback information, and the terminal device does not send any signal or information to the network device. When the terminal device does not generate the corresponding feedback information bit and has other uplink feedback information, the terminal device only sends the other uplink feedback information.

For example, the other uplink feedback information may be feedback information of downlink data sent aperiodically by the terminal device to the network device; or, the other uplink feedback information may also be channel state information (CSI) generated by the terminal device when performing channel measurement.

For another example, in the case where a network device sends downlink data and DCI for scheduling downlink data according to a predetermined period, the terminal device may send first information to the network device when it does not successfully receive the downlink data; the terminal device may send second information to the network device when it does not receive the DCI for scheduling downlink data; when the terminal device successfully receives the downlink data, the terminal device does not send the first information or the second information to the network device.

When the terminal device determines that the bit length of the feedback information is 1 bit, and when the bit value of the feedback information is 0, the terminal device sends the first information to the network device; when the bit value of the feedback information is 1, it indicates that the terminal device has not successfully received the DCI that schedules downlink data, and the terminal device may send the second information to the network device; when the terminal device determines that the downlink data is successfully received, it may not send the first information or the second information to the network device.

Optionally, the first information and the second information are sequences of different amplitudes. Optionally, the terminal device sends the first information to the network device, including:

The terminal device sends the first information to the network device on a predetermined uplink resource.

Optionally, the terminal device sends first information to the network device, including:

The terminal device sends the first information to the network device on one or more uplink resources for which it has successfully competed.

When the terminal device determines that the downlink data has not been received successfully, the terminal device may compete for one or more uplink resources from the uplink resource set, and send the first information to the network device on at least part of the one or more uplink resources.

S330, when the network device receives the first information sent by the terminal device, the network device determines that the terminal device has not successfully received the downlink data; when the network device does not receive the first information sent by the terminal device, the network device determines that the terminal device has successfully received the downlink data.

Optionally, the network device receives the first information sent by the terminal device, including:

The network device receives the first information on a predetermined uplink resource.

Optionally, the network device does not receive the first information sent by the terminal device, including:

The network device does not receive the first information sent by the terminal device on each uplink resource of one or more uplink resources.

Optionally, the network device receives the first information sent by the terminal device, including:

The network device receives the first information sent by the terminal device on one or more uplink resources.

The network device can configure an uplink resource set to allow the terminal device to compete, and the downlink data and the uplink resource set can have a corresponding relationship. The terminal device can compete for one or more uplink resources from the uplink resource set, and can send the first information to the network device on the one or more uplink resources for which the competition is successful. The network device receives the first information on each uplink resource in the uplink resource set. If the network device does not receive the first information on each uplink resource in the uplink resource set, the network device determines that the terminal device has successfully received the downlink data; if the network device receives the first information on one or more uplink resources in the uplink resource set, the network device determines that the terminal device has not successfully received the downlink data.

For the case where the network device only sends DCI for scheduling downlink data within the first predetermined period, or the case where the network device periodically sends downlink data to the terminal device without sending DCI, when the network device receives the first information, it can retransmit the downlink data to the terminal device.

In the case where the network device sends downlink data and DCI that schedules downlink data according to a predetermined period, when the network device receives the first information, it can retransmit the downlink data and the DCI that schedules the downlink data to the terminal device; when the network device receives the second information, it can retransmit the downlink data to the terminal device.

According to the information transmission method of the embodiment of the present application, when the terminal device successfully receives the downlink data, it may not send information to the network device, which helps to reduce the interference of the uplink control information introduced by the affirmative response, thereby helping to improve the spectrum utilization efficiency.

The above is a detailed description of the information transmission method provided by the present application in conjunction with Figures 5 to 15. The following is a detailed description of the information transmission device provided by the present application in conjunction with the accompanying drawings.

The embodiments of the present application also provide a device for implementing any of the above methods. For example, a device is provided, including a module (or unit) for implementing each step performed by the terminal in any of the above methods. For another example, another device is provided, including a module (or unit) for implementing each step performed by the network device in any of the above methods.

FIG. 16 shows a schematic block diagram of an apparatus 400 for transmitting information provided in an embodiment of the present application. As shown in FIG. 16 , the apparatus 400 for transmitting information may include a transceiver module 410 and a processing module 420 .

In one possible design, the apparatus 400 may be the terminal device in the above method 200 or method 300, or a chip configured in the terminal device.

Specifically, the transceiver module 410 is used to receive downlink data from the network device;

The processing module 420 is configured to determine a first sequence or a second sequence, wherein the first sequence is a sequence determined when the device successfully receives the downlink data; the second sequence is a sequence determined when the device does not successfully receive the downlink data; and the amplitude of the first sequence is different from the amplitude of the second sequence;

The transceiver module is also used to send the first sequence or the second sequence to the network device.

Optionally, the amplitude of the first sequence is smaller than the amplitude of the second sequence.

Optionally, the processing module 420 is specifically used for:

Determine feedback information, where the feedback information is used to indicate whether the downlink data is successfully received or not successfully received;

According to the first modulation mode, mapping the feedback information into complex-valued symbols;

The first sequence or the second sequence is determined according to the complex-valued symbol.

Optionally, the transceiver module 410 is further used to receive first indication information from the network device, where the first indication information is used to indicate one or more modulation modes, and the one or more modulation modes include the first modulation mode.

Optionally, when the one or more modulation modes are multiple modulation modes, the processing module 420 is further used to determine the first modulation mode from the multiple modulation modes according to the feedback information.

Optionally, the processing module 420 is specifically used for:

Determine feedback information, where the feedback information is used to indicate whether the downlink data is successfully received or not successfully received;

The first sequence or the second sequence is determined according to the feedback information and a preset mapping relationship, where the preset mapping relationship is a mapping relationship between a bit value of the feedback information and a sequence.

Optionally, the transceiver module 410 is specifically used for:

The first sequence or the second sequence is sent to the network device on one or more uplink resources for which competition is successful.

In another possible design, the transceiver module 410 is used to receive downlink data sent by the network device, and the terminal device does not receive downlink control information for scheduling the downlink data;

The processing module 420 is used to determine whether the downlink data is successfully received or not successfully received;

The transceiver module 410 is also used to send the first information to the network device when the processing module determines that the downlink data is not successfully received; or, when the processing module successfully receives the downlink data, not send the first information to the network device.

Optionally, the transceiver module 420 is specifically used for:

The first information is sent to the network device on one or more uplink resources for which competition is successful.

It should be understood that the device 400 may correspond to the terminal device in the method 200 or the method 300 for transmitting information according to the embodiment of the present application, and the device 400 may include a unit for executing the method performed by the terminal device of the method 200 or the method 300. In addition, each unit in the device 400 and the above-mentioned other operations and/or functions are respectively for implementing the corresponding process of the method 200 or the method 300. For the specific process of each unit performing the above-mentioned corresponding steps, please refer to the description of the method embodiment in combination with Figures 4 and 14 in the foregoing text, which will not be repeated here for the sake of brevity.

FIG. 17 shows a schematic block diagram of an apparatus 500 for transmitting information provided in an embodiment of the present application. As shown in FIG. 17 , the apparatus 500 for transmitting information may include a transceiver module 510 and a processing module 520 .

In one possible design, the device for transmitting information may be the network device in the above method 200 or method 300, or a chip configured in the network device.

Specifically, the transceiver module 510 is used to send downlink data to the terminal device;

The transceiver module 510 is also used to receive the first sequence or the second sequence sent by the terminal device;

The processing module 520 is used to determine that the terminal device successfully receives the downlink data when the transceiver module receives the first sequence sent by the terminal device; or to determine that the terminal device does not successfully receive the downlink data when the transceiver module receives the second sequence sent by the terminal device;

The amplitude of the first sequence is different from the amplitude of the second sequence.

Optionally, the amplitude of the first sequence is smaller than the amplitude of the second sequence.

Optionally, the transceiver module 510 is further used to send first indication information to the terminal device, where the first indication information is used to indicate one or more modulation modes, and the one or more modulation modes are used to determine the first sequence or the second sequence.

Optionally, the transceiver module 510 is specifically used for:

The first sequence or the second sequence sent by the terminal device is received on one or more uplink resources.

In another possible design, the transceiver module 510 is used to send downlink data to the terminal device, and not send downlink control information for scheduling the downlink data to the terminal device;

Processing module 520 is used to determine that the terminal device has not successfully received the downlink data when the transceiver module receives the first information sent by the terminal device; or to determine that the terminal device has successfully received the downlink data when the transceiver module does not receive the first information sent by the terminal device.

Optionally, the transceiver module 510 is specifically used for:

The first information sent by the terminal device is not received on each uplink resource of one or more uplink resources.

Optionally, the transceiver module 510 is specifically used for:

The first information sent by the terminal device is received on one or more uplink resources.

It should be understood that the device 500 may correspond to the network device in the method 200 or the method 300 for transmitting information according to the embodiment of the present application, and the device 500 may include a unit for executing the method executed by the network device of the method 200 or the method 300. In addition, each unit in the device 500 and the above-mentioned other operations and/or functions are respectively for implementing the corresponding process of the method 200 or the method 300. For the specific process of each unit executing the above-mentioned corresponding steps, please refer to the description of the method embodiment in combination with Figures 4 and 14 in the foregoing text, and for the sake of brevity, it will not be repeated here.

It should be understood that the division of the units in the above device is only a division of logical functions. In actual implementation, they can be fully or partially integrated into one physical entity, or they can be physically separated. And the units in the device can all be implemented in the form of software calling through processing elements; they can also be all implemented in the form of hardware; some units can also be implemented in the form of software calling through processing elements, and some units can be implemented in the form of hardware. For example, each unit can be a separately established processing element, or it can be integrated in a certain chip of the device. In addition, it can also be stored in the memory in the form of a program, and called and executed by a certain processing element of the device. The function of the unit. In addition, all or part of these units can be integrated together, or they can be implemented independently. The processing element described here can also be a processor, which can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each unit above can be implemented by an integrated logic circuit of hardware in the processor element or in the form of software calling through a processing element.

In one example, the unit in any of the above devices may be one or more integrated circuits configured to implement the above method, such as one or more application specific integrated circuits (ASIC), or one or more digital singnal processors (DSP), or one or more field programmable gate arrays (FPGA), or a combination of at least two of these integrated circuit forms. For another example, when the unit in the device can be implemented in the form of a processing element scheduler, the processing element can be a general-purpose processor, such as a central processing unit (CPU) or other processor that can call a program. For another example, these units can be integrated together and implemented in the form of a system-on-a-chip (SOC).

The above unit for receiving is an interface circuit of the device, which is used to receive signals from other devices. For example, when the device is implemented in the form of a chip, the receiving unit is an interface circuit of the chip used to receive signals from other chips or devices. The above unit for sending is an interface circuit of the device, which is used to send signals to other devices. For example, when the device is implemented in the form of a chip, the sending unit is an interface circuit of the chip used to send signals to other chips or devices.

FIG18 shows a schematic diagram of the structure of a terminal device provided in an embodiment of the present application, which may be a terminal device in the above embodiment, and is used to implement the operation of the terminal device in the above embodiment. As shown in FIG18 , the terminal includes: an antenna 610, a radio frequency part 620, and a signal processing part 630. The antenna 610 is connected to the radio frequency part 620. In the downlink direction, the radio frequency part 620 receives information sent by a network device through the antenna 610, and sends the information sent by the network device to the signal processing part 630 for processing. In the uplink direction, the signal processing part 630 processes the information of the terminal and sends it to the radio frequency part 620. The radio frequency part 620 processes the information of the terminal device and sends it to the network device through the antenna 610.

The signal processing part 630 may include a modulation and demodulation subsystem for processing each communication protocol layer of the data; it may also include a central processing subsystem for processing the operating system and application layer of the terminal device; in addition, it may also include other subsystems, such as a multimedia subsystem, a peripheral subsystem, etc., wherein the multimedia subsystem is used to control the camera, screen display, etc. of the terminal device, and the peripheral subsystem is used to connect with other devices. The modulation and demodulation subsystem may be a separately set chip. Optionally, the above device for the terminal device may be located in the modulation and demodulation subsystem.

The modem subsystem may include one or more processing elements 631, for example, including a main control CPU and other integrated circuits. In addition, the modem subsystem may also include a storage element 632 and an interface circuit 633. The storage element 632 is used to store data and programs, but the program for executing the method executed by the terminal device in the above method may not be stored in the storage element 632, but stored in a memory outside the modem subsystem, and loaded and used by the modem subsystem when used. The interface circuit 633 is used to communicate with other subsystems. The above device for the terminal device may be located in the modem subsystem, and the modem subsystem may be implemented by a chip, which includes at least one processing element and an interface circuit, wherein the processing element is used to execute each step of any method executed by the above terminal device, and the interface circuit is used to communicate with other devices. In one implementation, the unit for the terminal device to implement each step in the above method can be implemented in the form of a processing element scheduler, for example, the device for the terminal device includes a processing element and a storage element, and the processing element calls the program stored in the storage element to execute the method executed by the terminal device in the above method embodiment. The storage element may be a storage element on the same chip as the processing element, that is, an on-chip storage element.

In another implementation, the program for executing the method executed by the terminal device in the above method can be in a storage element on a different chip from the processing element, that is, an off-chip storage element. In this case, the processing element calls or loads the program from the off-chip storage element to the on-chip storage element to call and execute the method executed by the terminal device in the above method embodiment.

In another implementation, the unit of the terminal device implementing each step in the above method may be configured as one or more processing elements, which are arranged on the modulation and demodulation subsystem. The processing elements here may be integrated circuits, such as one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these integrated circuits. These integrated circuits may be integrated together to form a chip.

The units of the terminal device implementing the various steps in the above method can be integrated together and implemented in the form of a SOC, and the SOC chip is used to implement the above method. The chip can integrate at least one processing element and a storage element, and the method executed by the above terminal device can be implemented in the form of a program stored in the storage element by the processing element; or, the chip can integrate at least one integrated circuit to implement the method executed by the above terminal device; or, the above implementation methods can be combined, and the functions of some units can be implemented in the form of a processing element calling a program, and the functions of some units can be implemented in the form of an integrated circuit.

It can be seen that the above apparatus for terminal equipment may include at least one processing element and an interface circuit, wherein at least one processing element is used to execute any of the methods performed by the terminal equipment provided in the above method embodiments. The processing element may execute part or all of the steps performed by the terminal equipment in a first manner: that is, by calling a program stored in a storage element; or in a second manner: that is, by combining an integrated logic circuit of hardware in a processor element with instructions to execute part or all of the steps performed by the terminal equipment; of course, the first manner and the second manner may also be combined to execute part or all of the steps performed by the terminal equipment.

The processing element here is the same as described above, and can be a general-purpose processor, such as a CPU, or can be one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or, one or more microprocessors DSPs, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.

A storage element may be a memory or a collective term for multiple storage elements.

FIG19 shows a schematic diagram of the structure of a network device provided in an embodiment of the present application, which may be a network device in the above embodiment, and is used to implement the operation of the network device in the above embodiment. As shown in FIG19 , the network device includes: an antenna 701, a radio frequency device 702, and a baseband device 703. The antenna 701 is connected to the radio frequency device 702. In the uplink direction, the radio frequency device 702 receives information sent by the terminal device through the antenna 701, and sends the information sent by the terminal device to the baseband device 703 for processing. In the downlink direction, the baseband device 703 processes the information of the terminal device and sends it to the radio frequency device 702. The radio frequency device 702 processes the information of the terminal device and sends it to the terminal device through the antenna 701.

The baseband device 703 may include one or more processing elements 7031, for example, including a main control CPU and other integrated circuits. In addition, the baseband device 703 may also include a storage element 7032 and an interface 7033, the storage element 7032 is used to store programs and data; the interface 7033 is used to interact with the radio frequency device 702. The interface is, for example, a common public radio interface (CPRI). The above device for the network device may be located in the baseband device 703. For example, the above device for the network device may be a chip on the baseband device 703, the chip includes at least one processing element and an interface circuit, wherein the processing element is used to execute each step of any method executed by the above network device, and the interface circuit is used to communicate with other devices. In one implementation, the unit for the network device to implement each step in the above method can be implemented in the form of a processing element scheduler. For example, the device for the network device includes a processing element and a storage element, and the processing element calls the program stored in the storage element to execute the method executed by the network device in the above method embodiment. The storage element may be a storage element on the same chip as the processing element, ie, an on-chip storage element, or may be a storage element on a different chip from the processing element, ie, an off-chip storage element.

In another implementation, the unit of the network device implementing each step in the above method may be configured as one or more processing elements, which are arranged on the baseband device. The processing elements here may be integrated circuits, such as one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these integrated circuits. These integrated circuits may be integrated together to form a chip.

The units of the network device implementing the various steps in the above method can be integrated together and implemented in the form of SOC. For example, the baseband device includes the SOC chip to implement the above method. The chip can integrate at least one processing element and a storage element, and the processing element calls the stored program of the storage element to implement the method executed by the above network device; or, the chip can integrate at least one integrated circuit to implement the method executed by the above network device; or, the above implementation methods can be combined, and the functions of some units are implemented by the processing element calling the program, and the functions of some units are implemented by the integrated circuit.

It can be seen that the above apparatus for network equipment may include at least one processing element and an interface circuit, wherein at least one processing element is used to execute any one of the methods performed by the network equipment provided in the above method embodiments. The processing element may execute part or all of the steps performed by the network equipment in a first manner: that is, by calling a program stored in a storage element; or in a second manner: by combining an integrated logic circuit of hardware in a processor element with instructions to execute part or all of the steps performed by the network equipment; of course, part or all of the steps performed by the above network equipment may also be executed in combination with the first manner and the second manner.

The processing element here is the same as described above, and can be a general-purpose processor, such as a CPU, or can be one or more integrated circuits configured to implement the above method, such as: one or more ASICs, or, one or more microprocessors DSPs, or, one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.

A storage element may be a memory or a collective term for multiple storage elements.

FIG. 20 shows another schematic diagram of the structure of the network device provided in an embodiment of the present application, which may be the network device in the above embodiment, and is used to implement the operation of the network device in the above embodiment.

As shown in FIG. 20 , the network device includes: a processor 810 , a memory 820 , and an interface 830 , and the processor 810 , the memory 820 , and the interface 830 are signal-connected.

The above device 500 for transmitting information can be located in the network device, and the functions of each unit can be implemented by the processor 810 calling the program stored in the memory 820. That is, the above device 500 for transmitting information includes a memory and a processor, and the memory is used to store the program, and the program is called by the processor to execute the method in the above method embodiment. The processor here can be an integrated circuit with signal processing capabilities, such as a CPU. Or the functions of the above units can be implemented by configuring one or more integrated circuits to implement the above method. For example: one or more ASICs, or one or more microprocessors DSPs, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. Alternatively, the above implementation method can be combined.

According to the method provided in the embodiments of the present application, the present application also provides a computer program product, which includes: a computer program code, when the computer program code runs on a computer, the computer executes the method in the above embodiments.

According to the method provided in the embodiments of the present application, the present application also provides a computer-readable medium, which stores program code. When the program code runs on a computer, the computer executes the method in the above embodiments.

The terminal devices and network devices in the above-mentioned various device embodiments can completely correspond to the terminal devices or network devices in the method embodiments, and the corresponding steps are performed by the corresponding modules or units. For example, when the device is implemented in the form of a chip, the receiving unit can be an interface circuit of the chip used to receive signals from other chips or devices. The above-mentioned unit for sending is an interface circuit of the device, which is used to send signals to other devices. For example, when the device is implemented in the form of a chip, the sending unit is an interface circuit of the chip used to send signals to other chips or devices.

An embodiment of the present application also provides a communication system, which includes: the above-mentioned terminal device, and/or the above-mentioned network device.

In the embodiments of the present application, it should be noted that the above-mentioned method embodiments of the embodiments of the present application can be applied to a processor or implemented by a processor. The processor may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above-mentioned method embodiment can be completed by an integrated logic circuit of hardware in the processor or an instruction in the form of software. The above-mentioned processor may be a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component. The various methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. 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 the embodiments of the present application can be directly embodied as a hardware decoding processor to be executed, or a combination of hardware and software modules in the decoding processor to be executed. The software module can be located in a mature storage medium in the field 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. The storage medium is located in a memory, and the processor reads the information in the memory and completes the steps of the above-mentioned method in combination with its hardware.

It can be understood that the memory in the embodiments of the present 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 and not limitation, many forms of RAM are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), and direct RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

The terms "uplink" and "downlink" appearing in this application are used to describe the direction of data/information transmission in specific scenarios. For example, the "uplink" direction generally refers to the direction of data/information transmission from the terminal device to the network side, or the direction of data/information transmission from a distributed unit to a centralized unit, and the "downlink" direction generally refers to the direction of data/information transmission from the network side to the terminal device, or the direction of data/information transmission from a centralized unit to a distributed unit. It can be understood that "uplink" and "downlink" are only used to describe the transmission direction of data/information, and the specific starting and ending devices of the data/information transmission are not limited.

Various objects such as various messages/information/equipment/network elements/systems/devices/actions/operations/processes/concepts that may appear in this application are named. It can be understood that these specific names do not constitute a limitation on the relevant objects. The names assigned may change with factors such as scenarios, contexts or usage habits. The understanding of the technical meaning of the technical terms in this application should be mainly determined from the functions and technical effects embodied/executed in the technical scheme.

The architecture of CU and DU in the embodiment of the present application is not limited to 5G NR gNB, but can also be applied to the scenario where the LTE base station is divided into CU and DU; the CU can be further divided into CP and UP. Optionally, when it is an LTE base station, the protocol layer does not include the SDAP layer.

The network architecture and business scenarios described in the embodiments of the present application are intended to facilitate readers to clearly understand the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field can know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

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 may include one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital user (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic disk), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state drive (SSD)), etc.

Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

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 aforementioned method embodiments and will not be repeated here.

In the several embodiments provided in the present 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 schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as 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 mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

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

The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (14)

1. A method for transmitting information, comprising: The terminal device receives downlink data from the network device; The terminal device determines a first sequence or a second sequence, wherein the first sequence is a sequence determined when the terminal device successfully receives the downlink data; the second sequence is a sequence determined when the terminal device fails to successfully receive the downlink data; the amplitude of each element in the first sequence is the same, the amplitude of each element in the second sequence is the same, the amplitude of the first sequence is different from the amplitude of the second sequence, and the amplitude of the first sequence is smaller than the amplitude of the second sequence; The terminal device sends the first sequence or the second sequence to the network device; The terminal device determines the first sequence or the second sequence, including: The terminal device determines feedback information, where the feedback information is used to indicate whether the downlink data is successfully received or not successfully received; The terminal device maps the feedback information into complex-valued symbols according to a first modulation mode; The terminal device determines the first sequence or the second sequence according to the complex-valued symbol. 2. The method according to claim 1, characterized in that before the terminal device maps the feedback information into complex-valued symbols according to the first modulation mode, the method further comprises: The terminal device receives first indication information from the network device, where the first indication information is used to indicate one or more modulation modes, and the one or more modulation modes include the first modulation mode. 3. The method according to claim 2, characterized in that when the one or more modulation modes are multiple modulation modes, the method further comprises: The first modulation mode is determined from the multiple modulation modes according to the feedback information. 4. The method according to any one of claims 1 to 3, wherein the terminal device sends the first sequence or the second sequence to the network device, comprising: The terminal device sends the first sequence or the second sequence to the network device on one or more uplink resources for which it has successfully competed. 5. A method for transmitting information, comprising: The network device sends downlink data to the terminal device; When the network device receives the first sequence sent by the terminal device, the network device determines that the terminal device successfully receives the downlink data; When the network device receives the second sequence sent by the terminal device, the network device determines that the terminal device has not successfully received the downlink data; The amplitude of each element in the first sequence is the same, the amplitude of each element in the second sequence is the same, the amplitude of the first sequence is different from the amplitude of the second sequence, the amplitude of the first sequence is smaller than the amplitude of the second sequence, the first sequence or the second sequence is determined based on a complex-valued symbol, the complex-valued symbol is obtained by mapping feedback information based on a first modulation method, and the feedback information is used to indicate whether the downlink data is received successfully or not. 6. The method according to claim 5, characterized in that before the network device receives the first sequence or the second sequence sent by the terminal device, the method further comprises: The network device sends first indication information to the terminal device, where the first indication information is used to indicate one or more modulation modes, and the one or more modulation modes are used to determine the first sequence or the second sequence. 7. The method according to claim 5 or 6, characterized in that the network device receives the first sequence or the second sequence sent by the terminal device, comprising: The network device receives the first sequence or the second sequence sent by the terminal device on one or more uplink resources. 8. A device for transmitting information, comprising: A transceiver module, used for receiving downlink data from a network device; a processing module, configured to determine a first sequence or a second sequence, wherein when the device successfully receives the downlink data, the processing module determines the first sequence; when the device does not successfully receive the downlink data, the processing module determines the second sequence; the amplitude of each element in the first sequence is the same, the amplitude of each element in the second sequence is the same, the amplitude of the first sequence is different from the amplitude of the second sequence, and the amplitude of the first sequence is less than the amplitude of the second sequence; The transceiver module is further used to send the first sequence or the second sequence to the network device; The processing module is specifically used for: Determining feedback information, where the feedback information is used to indicate whether the downlink data is successfully received or not successfully received; According to the first modulation mode, mapping the feedback information into complex-valued symbols; The first sequence or the second sequence is determined according to the complex-valued symbols. 9. The device according to claim 8 is characterized in that the transceiver module is also used to receive first indication information from the network device, and the first indication information is used to indicate one or more modulation modes, and the one or more modulation modes include the first modulation mode. 10. The device according to claim 9 is characterized in that, when the one or more modulation modes are multiple modulation modes, the processing module is also used to determine the first modulation mode from the multiple modulation modes according to the feedback information. 11. The device according to any one of claims 8 to 10, characterized in that the transceiver module is specifically used for: On one or more uplink resources for which contention has succeeded, the first sequence or the second sequence is sent to the network device. 12. A device for transmitting information, comprising: A transceiver module, used for sending downlink data to a terminal device; The transceiver module is also used to receive the first sequence or the second sequence sent by the terminal device; a processing module, configured to determine that the terminal device successfully receives the downlink data when the transceiver module receives the first sequence sent by the terminal device; or to determine that the terminal device does not successfully receive the downlink data when the transceiver module receives the second sequence sent by the terminal device; The amplitude of each element in the first sequence is the same, the amplitude of each element in the second sequence is the same, the amplitude of the first sequence is different from the amplitude of the second sequence, the amplitude of the first sequence is smaller than the amplitude of the second sequence, the first sequence or the second sequence is determined based on a complex-valued symbol, the complex-valued symbol is obtained by mapping feedback information based on a first modulation method, and the feedback information is used to indicate whether the downlink data is received successfully or not. 13. The device according to claim 12 is characterized in that the transceiver module is also used to send first indication information to the terminal device, the first indication information is used to indicate one or more modulation modes, and the one or more modulation modes are used to determine the first sequence or the second sequence. 14. The device according to claim 12 or 13, characterized in that the transceiver module is specifically used for: On one or more uplink resources, receive the first sequence or the second sequence sent by the terminal device.