CN111711993A - 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 that of the second sequence; and the terminal equipment sends the first sequence or the second sequence to the network equipment. The application provides a method and a device for transmitting information, which are beneficial to improving the transmission efficiency of a system.

Description

Method and device for transmitting information

Technical Field

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

Background

In an existing communication system, a terminal device receives downlink data and generates hybrid automatic repeat request (HARQ) feedback information, where the HARQ feedback information includes positive Acknowledgement (ACK) and Negative Acknowledgement (NACK). The acknowledgement message indicates that the terminal device successfully receives (correct received) downlink data; the negative acknowledgement message indicates that the terminal device did not successfully receive (incorrectly received) the downlink data.

Since the terminal device frequently sends the HARQ feedback information, interference between HARQ feedback information sent by different terminal devices may be caused, and thus the network device may not correctly receive the HARQ feedback information.

The network device may interpret the NACK error as an ACK, and then the network device does not retransmit the failed Transport Block (TB), which may decrease transmission efficiency of the system and deteriorate an index of the communication system.

The network device may also interpret the ACK error as NACK, and then retransmit the TB that does not need to be retransmitted, so that the retransmitted TB occupies additional system resources, and blocks transmission of other data, which may also decrease data transmission efficiency of the system.

Disclosure of Invention

The application provides a method and a device for transmitting information, which are beneficial to improving the transmission efficiency of a system.

In a first aspect, a method for transmitting information is provided, the method including: the terminal equipment receives downlink data from the network equipment; the terminal equipment determines a first sequence or a second sequence, wherein the first sequence is determined when the terminal equipment successfully receives the downlink data; the second sequence is a sequence determined when the terminal device has not successfully received the downlink data; the first sequence has a different magnitude than the second sequence; and the terminal equipment sends the first sequence or the second sequence to the network equipment.

According to the information transmission method, the terminal device feeds back the sequences with different amplitudes to the network device according to the receiving condition of the downlink data, so that the interference of the uplink control information is reduced, and the transmission efficiency of the system is improved.

With reference to the first aspect, in certain implementations of the first aspect, the magnitude of the first sequence is smaller than the magnitude of the second sequence.

Due to the requirement of low latency high reliability services, new challenges are presented for the design of wireless networks, particularly for the design of 5th generation mobile communication systems and their evolved wireless communication systems. For example, high requirements are placed on the latency and reliability of data transmission. For example, the success probability of data transmission increases from greater than 90% to greater than 99.99%; and the delay of data transmission is less than 0.5 ms. According to the transmission method provided by the embodiment of the application, the amplitude of the first sequence obtained by the terminal equipment when the downlink data is correctly received is smaller than the amplitude of the second sequence obtained by the terminal equipment when the downlink data is not successfully received, so that the interference of an uplink control channel introduced by an acknowledgement message is reduced, and the transmission efficiency of a system is improved under the scene of low-delay and high-reliability service.

With reference to the first aspect, in some implementations of the first aspect, the determining, by the terminal device, the first sequence or the second sequence includes: the terminal equipment determines feedback information, wherein the feedback information is used for indicating that the downlink data is successfully or unsuccessfully received; the terminal equipment maps the feedback information into a complex value symbol according to a first modulation mode; the terminal equipment determines the first sequence or the second sequence according to the complex-valued symbol.

According to the method for transmitting information, the terminal equipment determines the feedback information according to the receiving condition of the downlink data, can modulate the bit values of different feedback information into different complex-value symbols, and determines the sequences with different amplitudes according to the different complex-value symbols, so that the interference of the uplink control information is reduced, and the transmission efficiency of a system is improved.

With reference to the first aspect, in some implementations of the first aspect, before the terminal device maps the feedback information to a complex-valued symbol according to the first modulation scheme, the method further includes: the terminal device receives first indication information from the network device, wherein the first indication information is used for indicating one or more modulation modes, and the one or more modulation modes comprise the first modulation mode.

In some possible implementation manners, the one or more modulation manners include an on-off keying (OOK) modulation manner, and when the terminal device successfully receives the downlink data, the all-zero sequence may be determined by the OOK modulation manner, which is helpful for reducing interference of an uplink control channel caused by an acknowledgement, thereby helping to improve system transmission efficiency.

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

In this embodiment, the network device may indicate the one or more modulation schemes to the terminal device by displaying an indication, so that the terminal device determines the sequence according to the one or more modulation schemes.

In some possible implementations, the first indication information includes information for indicating that the downlink data is high-reliability low-latency data. After receiving the first indication information, the terminal device may determine that the network device desires to generate a complex-valued symbol through an OOK modulation scheme and further generate a sequence.

In this embodiment of the application, the network device may indicate one or more modulation schemes to the terminal device in an implicit indication manner, so that the terminal device determines the sequence according to the one or more modulation schemes.

With reference to the first aspect, in some implementations of the first aspect, when the one or more modulation schemes are multiple modulation schemes, the method further includes: the terminal equipment determines the first modulation mode from the plurality of modulation modes according to the feedback information.

In this embodiment, when the network device indicates multiple modulation modes, the terminal device may determine a corresponding modulation mode according to the bit length of the feedback information, so that the terminal device maps the bit value of the feedback information to a complex-valued symbol.

In some possible implementations, the plurality of modulation schemes include an OOK modulation scheme.

In some possible implementations, in case that the bit length of the feedback information is 1bit, the complex-valued symbol satisfies:

wherein d (i) is the complex-valued symbol, b (i) is the bit value of the (i +1) th bit in the feedback information, and i is an integer greater than or equal to 0.

In the embodiment of the application, when the bit value of the determined feedback information of the terminal device is 1, the value of the complex value symbol is 0, and then the terminal device can generate an all-zero sequence, and the terminal device sends the all-zero sequence to the network device, and when receiving the all-zero sequence, the network device can determine that the terminal device successfully receives downlink data, so that interference of an uplink control channel introduced by an acknowledgement message is reduced, and transmission efficiency of a system is improved.

In some possible implementations, in case that 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 2 i-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 the embodiment of the application, when the determined bit value of the feedback information of the terminal device is 11, the value of the complex value symbol is 0, and then the terminal device can generate an all-zero sequence, and the terminal device sends the all-zero sequence to the network device, and when receiving the all-zero sequence, the network device can determine that the terminal device successfully receives the downlink data, so that the interference of an uplink control channel introduced by an acknowledgement message is reduced, and the transmission efficiency of a system is improved.

With reference to the first aspect, in some implementations of the first aspect, the determining, by the terminal device, the first sequence or the second sequence includes: the terminal equipment determines feedback information, wherein the feedback information is used for indicating that the downlink data is successfully or unsuccessfully received; the terminal device determines the first sequence or the second sequence according to the feedback information and a preset mapping relationship, wherein the preset mapping relationship is a mapping relationship between a bit value of the feedback information and a sequence.

In the embodiment of the application, the terminal device determines the feedback information according to the receiving condition of the downlink data, and can directly map different feedback information into sequences with different amplitudes, which is beneficial to reducing the interference of uplink control information, thereby being beneficial to improving the transmission efficiency of the system.

With reference to the first aspect, in some implementations of the first aspect, the sending, by the terminal device, the first sequence or the second sequence to the network device includes: and the terminal equipment sends the first sequence or the second sequence to the network equipment on one or more uplink resources successfully contended.

In some possible implementations, before the terminal device sends the first sequence or the second sequence to the network device, the method further includes: and the terminal equipment obtains the one or more uplink resources in a competition manner from the uplink resource set corresponding to the downlink data.

In the method for transmitting information according to the embodiment of the present application, the terminal device may compete for the uplink resource in the uplink resource set in the unlicensed frequency band, and send the sequence on the uplink resource that is successfully competed, and the network device may receive the sequence on each uplink resource in the uplink resource set, thereby determining whether the terminal device successfully receives or unsuccessfully receives the downlink data.

In a second aspect, a method for transmitting information is provided, the method comprising: the network equipment sends downlink data to the terminal equipment; when the network equipment receives the first sequence sent by the terminal equipment, the network equipment determines that the terminal equipment 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 does not successfully receive the downlink data; wherein the first sequence has a different magnitude than the second sequence.

According to the information transmission method, the network equipment can determine the receiving condition of the terminal equipment to the downlink data according to the received sequences with different amplitudes, so that the interference of an uplink control channel is reduced, the receiving accuracy of the network equipment is improved, and the transmission efficiency of a system is improved.

With reference to the second aspect, in some possible implementations of the second aspect, the magnitude of the first sequence is smaller than the magnitude of the second sequence.

According to the method for transmitting the information, when the terminal device successfully receives the downlink data, the amplitude of the sequence received by the network device is small, interference of an uplink control channel introduced by the acknowledgement is reduced, the receiving accuracy of the network device is improved, and therefore the transmission efficiency of the system is improved.

With reference to the second aspect, in some implementations of the second aspect, before the network device receives the first sequence or the second sequence sent by the terminal device, the method further includes: the network device sends first indication information to the terminal device, wherein the first indication information is used for indicating one or more modulation modes, and the one or more modulation modes are used for determining the first sequence or the second sequence.

In some possible implementations, the one or more modulation schemes include an OOK modulation scheme.

With reference to the second aspect, in some implementations of the second aspect, the first indication information includes information indicating the one or more modulation schemes.

With reference to 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 low-latency data.

With reference to the second aspect, in some implementations of the second aspect, the receiving, by the network device, the first sequence or the second sequence sent by the terminal device includes: and the network equipment receives the first sequence or the second sequence sent by the terminal equipment on one or more uplink resources.

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

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

In the embodiment of the application, when the terminal device successfully receives the downlink data, no information is sent to the network device, which is beneficial to reducing the interference of the uplink control channel introduced by the acknowledgement message, thereby being beneficial to improving the spectrum use efficiency and the transmission efficiency of the system.

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

With reference to the third aspect, in some implementations of the third aspect, the sending, by the terminal device, the first information to the network device includes: and the terminal equipment sends the first information to the network equipment on one or more uplink resources successfully contended.

In the method for transmitting information according to the embodiment of the present application, the terminal device may compete for the uplink resource in the uplink resource set in the unlicensed frequency band, and send the sequence on the uplink resource that is successfully competed, and the network device may receive the sequence on each uplink resource in the uplink resource set, thereby determining whether the terminal device successfully receives or unsuccessfully receives the downlink data.

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

According to the method for transmitting the information, the network equipment can determine the receiving condition of the terminal equipment to the downlink data according to the received first information or the first information is not received, so that the interference of an uplink control channel is reduced, the receiving accuracy of the network equipment is improved, and the transmission efficiency of the system is improved.

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

With reference to the fourth aspect, in some implementations of the fourth aspect, the that the network device does not receive the first information sent by the terminal device includes: the network device does not receive the first information sent by the terminal device on each of one or more uplink resources.

In the method for transmitting information according to the embodiment of the application, after the network device does not receive the first information on one or more uplink resources corresponding to the downlink data, it can be determined that the terminal device successfully receives the downlink data.

With reference to the fourth aspect, in some implementations of the fourth aspect, the receiving, by the network device, the first information sent by the terminal device includes: 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 means or means (means) for performing the steps of the above first or third aspect.

In a sixth aspect, the present application provides an apparatus for transmitting information, comprising means or units (means) for performing the steps of the second or fourth aspect above.

In a seventh aspect, the present application provides an apparatus for transmitting information, including at least one processor, connected to a memory, for invoking a program in the memory to perform the method provided in the first aspect or the third aspect. The memory may be located within the device or external to the device. And the processor includes one or more.

In an eighth aspect, the present application provides an apparatus for transferring information, which includes at least one processor connected to a memory, for calling a program in the memory to execute the method provided in the second or fourth aspect. The memory may be located within the device or external to 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, the at least one processor being configured to perform the method provided in the above first or third aspect.

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

In an eleventh aspect, a terminal device is provided, where the terminal device 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, where the network device 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 for performing the method provided in the first or third aspect above when executed by a processor.

In a fourteenth aspect, the present application provides a program which, when executed by a processor, is adapted to perform the method provided in the second or 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.

Drawings

Fig. 1 is a schematic diagram of an application scenario of the technical solution provided in the embodiment of the present application.

Fig. 2 is a schematic diagram of a network architecture according to an embodiment of the present application.

Fig. 3 is a schematic diagram of another network architecture provided in the embodiment of the present application.

Fig. 4 is a schematic flow chart of a method for transmitting information provided by an embodiment of the present application.

Fig. 5 is a mapping relationship diagram of complex-valued symbols and bit values of feedback information in a complex coordinate system.

Fig. 6 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 of complex-valued symbols and bit values of feedback information in a complex coordinate system.

Fig. 8 is another mapping relationship diagram of complex-valued symbols and bit values of feedback information in a complex coordinate system.

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

Fig. 10 is another mapping relationship diagram of complex-valued symbols and bit values of feedback information in a complex coordinate system.

Fig. 11 is another mapping relationship diagram of complex-valued symbols and bit values of feedback information in a complex coordinate system.

Fig. 12 is another mapping relationship diagram of complex-valued symbols and bit values of feedback information in a complex coordinate system.

Fig. 13 is a schematic diagram of a terminal device transmitting a sequence on an uplink resource successfully contended by the terminal device according to the embodiment of the present application.

Fig. 14 is another schematic flow chart of a method for transmitting information provided by an embodiment of the present application.

Fig. 15 is a schematic diagram of feeding back first information by a terminal device according to an embodiment of the present application.

Fig. 16 is a schematic block diagram of an apparatus for transmitting information according to an embodiment of the present disclosure.

Fig. 17 is another schematic block diagram of an apparatus for transmitting information according to an embodiment of the present disclosure.

Fig. 18 is a schematic structural diagram of a terminal device according to an embodiment of the present application.

Fig. 19 is a schematic structural diagram of a network device according to an embodiment of the present application.

Fig. 20 is another schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

In the following, some terms in the present application will be explained:

1) a terminal device, also called a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), etc., is a device providing voice/data connectivity to a user, for example, a handheld device with a wireless connection function, or a vehicle-mounted device. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in unmanned driving (self), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in city (smart city), a wireless terminal in smart home (smart home), and the like.

2) A network device is a device in a wireless network, such as a Radio Access Network (RAN) node that accesses a terminal to the wireless network. Currently, some examples of RAN nodes are: a gbb, a Transmission Reception Point (TRP), an evolved Node B (eNB), a Radio Network Controller (RNC), a Node B (NB), a Base Station Controller (BSC), a Base Transceiver Station (BTS), a home base station (e.g., a home evolved Node B, or home Node B, HNB), a Base Band Unit (BBU), or a wireless fidelity (Wifi) Access Point (AP), etc. In one network configuration, a network device may include a Centralized Unit (CU) node, or a Distributed Unit (DU) node, or a RAN device including a CU node and a DU node.

3) The term "plurality" means two or more, and the other terms are similar. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. Furthermore, for elements (elements) that appear in the singular form "a," an, "and" the, "they are not intended to mean" one or only one "unless the context clearly dictates otherwise, but rather" one or more than one. For example, "a device" means for one or more such devices. Still further, at least one (at least one of.). said. "means one or any combination of subsequently associated objects, e.g.," at least one of a, B, and C "includes a, B, C, AB, AC, BC, or ABC.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a global system for mobile communications (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) system, a General Packet Radio Service (GPRS), a long term evolution (long term evolution, LTE) system, a LTE Frequency Division Duplex (FDD) system, a LTE Time Division Duplex (TDD), a universal mobile telecommunications system (universal mobile telecommunications system, UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication system, a fifth generation (5G) system, or a New Radio (NR), etc.

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

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

Fig. 1 is a schematic diagram of an application scenario of the technical solution provided in the embodiment of the present application, as shown in fig. 1, a terminal device 130 accesses to a wireless network to obtain a service of an external network (e.g., the internet) through the wireless network, or communicates with other terminal devices through the wireless network. The wireless network includes a RAN110 and a Core Network (CN)120, where the RAN110 is used to access terminal devices 130 to the wireless network and the CN120 is used to manage the terminal devices and provide a gateway for communication with external networks.

It should be understood that the methods of transmitting information provided herein may be applicable to wireless communication systems, such as the wireless communication system 100 shown in fig. 1. Two communication devices in a wireless communication system have a wireless communication connection therebetween, and one of the two communication devices may correspond to the terminal equipment 130 shown in fig. 1, and may be, for example, the terminal equipment 130 in fig. 1, or may be a chip configured in the terminal equipment 130; the other of the two communication devices may correspond to RAN110 shown in fig. 1, and may be RAN110 in fig. 1, or a chip configured in RAN110, for example.

Fig. 2 is a schematic diagram of a network architecture provided in an embodiment of the present application, and as shown in fig. 2, the network architecture includes a CN device and a RAN device. The RAN device includes a baseband device and a radio frequency device, where the baseband device may be implemented by one node or by multiple nodes, and the radio frequency device may be implemented independently by being pulled away from the baseband device, may also be integrated in the baseband device, or may be partially pulled away and partially integrated in the baseband device. For example, in a Long Term Evolution (LTE) communication system, a RAN equipment (eNB) includes a baseband device and a radio frequency device, where the radio frequency device may be remotely located with respect to the baseband device, e.g., a Remote Radio Unit (RRU) is remotely located with respect to a BBU.

The communication between the RAN equipment and the terminal equipment follows a certain protocol layer structure. For example, the control plane protocol layer structure may include functions of protocol layers such as a Radio Resource Control (RRC) layer, a Packet Data Convergence Protocol (PDCP) layer, a Radio Link Control (RLC) layer, a Medium Access Control (MAC) layer, and a physical layer. The user plane protocol layer structure can comprise functions of protocol layers such as a PDCP layer, an RLC layer, an MAC layer, a physical layer and the like; in one implementation, a Service Data Adaptation Protocol (SDAP) layer may be further included above the PDCP layer.

The RAN device may implement functions of protocol layers such as Radio Resource Control (RRC), Packet Data Convergence Protocol (PDCP), Radio Link Control (RLC), and Media Access Control (MAC) by using one node; or the functions of these protocol layers may be implemented by multiple nodes; for example, in an evolved structure, a RAN device may include a Centralized Unit (CU) and a Distributed Unit (DU), and a plurality of DUs may be centrally controlled by one CU. As shown in fig. 2, the CU and the DU may be divided according to protocol layers of the radio network, for example, functions of a PDCP layer and above protocol layers are provided in the CU, and functions of protocol layers below the PDCP layer, for example, functions of an RLC layer and a MAC layer, are provided in the DU.

This division of the protocol layers is only an example, and it is also possible to divide the protocol layers at other protocol layers, for example, at the RLC layer, and the functions of the RLC layer and the protocol layers above are set in the CU, and the functions of the protocol layers below the RLC layer are set in the DU; alternatively, the functions are divided into some protocol layers, for example, a part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are provided in the CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are provided in the DU. In addition, the processing time may be divided in other manners, for example, by time delay, a function that needs to satisfy the time delay requirement for processing is provided in the DU, and a function that does not need to satisfy the time delay requirement is provided in the CU.

In addition, the radio frequency device may be pulled away, not placed in the DU, or integrated in the DU, or partially pulled away and partially integrated in the DU, which is not limited herein.

Referring to fig. 3, fig. 3 is a schematic diagram illustrating another network architecture provided in the embodiment of the present application, and with respect to the architecture shown in fig. 2, the Control Plane (CP) and the User Plane (UP) of a CU may be separated and implemented by being divided into different entities, namely, a control plane CU entity (CU-CP entity) and a user plane CU entity (CU-UP entity), respectively.

In the above network architecture, the signaling generated by the CU may be sent to the terminal device through the DU, or the signaling generated by the terminal device may be sent to the CU through the DU. The DU may pass through the protocol layer encapsulation directly to the terminal device or CU without parsing the signaling. In the following embodiments, if transmission of such signaling between the DU and the terminal device is involved, in this case, the transmission or reception of the signaling by the DU includes such a scenario. For example, the signaling of the RRC or PDCP layer is finally processed as the signaling of the PHY layer to be sent to the terminal device, or is 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 by the DU and the radio frequency.

In the above embodiment, the CU is divided into the network devices on the RAN side, and in addition, the CU may also be divided into the network devices on the CN side, which is not limited herein.

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

Fig. 4 shows a schematic flow chart of a method 200 for transmitting information according to an embodiment of the present application, and as shown in fig. 4, an execution subject of the method 200 may be an apparatus for transmitting information (e.g., a terminal device or a chip or an apparatus of a terminal device, a network device or a chip or an apparatus of a network device), and the method 200 includes:

s210, a network device sends downlink data to a 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 (PDSCH).

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

It should also be understood that one or more Transport Blocks (TBs) may be included in the downstream data.

S220, the terminal device determines a first sequence or a second sequence, where the first sequence is 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 first sequence has a different magnitude than the second sequence.

It should be understood that in the embodiment of the present application, a plurality of elements may be included in the first sequence and the second sequence, and since the amplitude of each element in the first sequence may be the same and the amplitude of each element in the second sequence may be the same, the difference between the amplitude of the first sequence and the amplitude of the second sequence may also be understood as the difference between the amplitude of any one element in the first sequence and the amplitude of any one element in the second sequence. Optionally, the value of the amplitude includes zero.

It should also be understood that the terminal device may send the first sequence or the second sequence to the network device according to whether the reception of each transport block in the downlink data is successful or not.

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

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

It should be understood that, when two transport blocks are included in the downlink data, the terminal device may also send a corresponding sequence to the network device according to whether the reception of each transport block is successful or not.

It should also be understood that, in the above example, the downlink data includes only one or two transport blocks, and the downlink data may also include 3 or more than 3 transport blocks, and the embodiment of the present application is not limited thereto. For example, for the case where 3 transport blocks (transport block 1, transport block 2, and transport block 3) are included in the downlink data, the terminal device may transmit a sequence to the network device on two different uplink resources (uplink resource 1 and uplink resource 2). For example, the terminal device may transmit the first sequence on uplink resource 1 when the reception is successful for both transport block 1 and transport block 2; the terminal device may send the second sequence on uplink resource 2 when the reception of transport block 3 is not successful.

Optionally, the determining, by the terminal device, the first sequence or the second sequence includes:

the terminal equipment determines feedback information, wherein the feedback information is used for indicating that the downlink data is successfully received or not successfully received;

the terminal equipment maps the feedback information into a complex value symbol according to a first modulation mode;

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

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

Alternatively, the terminal device receives the downlink data, but does not receive Downlink Control Information (DCI) for scheduling the downlink data, and the terminal device generates 1-bit feedback information for the downlink data.

Optionally, the terminal device receives downlink control information for scheduling downlink data, where the downlink control information indicates that the terminal device periodically receives the downlink data, and the terminal device generates 1-bit feedback information for the downlink data.

For example, the terminal device receives downlink data in a first period and receives downlink control information scheduling the downlink data, the downlink control information instructing the terminal device to periodically receive the downlink data, and in a subsequent period, the terminal device receives only the downlink data and does not receive the downlink control information scheduling the downlink data.

It should be understood that, in the embodiment of the present application, the terminal device receives only downlink data and does not receive downlink control information for scheduling downlink data, and may also be understood as the terminal device receives PDSCH and does not receive physical downlink control information (PDCCH) for scheduling the PDSCH.

Optionally, when the downlink data includes a plurality of transport blocks, the terminal device may further generate 2-bit feedback information for two of the transport blocks.

Optionally, different values of bits in the feedback information are used to represent different response messages. The acknowledgement information includes a Negative Acknowledgement (NACK), and the NACK may indicate that the terminal device failed to receive the downlink data or failed to receive the downlink data; an Acknowledgement (ACK), which may indicate that the terminal device successfully receives the downlink data.

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

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

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

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

After the terminal device determines the feedback information, the terminal device may map bits of the feedback information to complex-valued symbols according to a first modulation scheme.

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

the terminal device receives first indication information sent by the network device, wherein the first indication information is used for indicating one or more modulation modes, and the one or more modulation modes include the first modulation mode.

The modulation scheme in the embodiment of the present application may include a Binary Phase Shift Keying (BPSK) modulation scheme, a Quadrature Phase Shift Keying (QPSK) modulation scheme, or an on-off keying (OOK) modulation scheme.

It should be understood that the OOK modulation scheme may also be referred to as a binary on-off keying modulation scheme, or alternatively, may also be referred to as a binary amplitude keying modulation scheme.

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

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

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

For example, the first indication information includes configuration information of the OOK modulation scheme. The configuration information of the OOK modulation scheme includes at least one of phase shift information or amplitude information under the OOK modulation scheme.

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

Optionally, the network device may indicate the one or more modulation schemes by hiding an indication.

For example, the network device may carry the first indication information in a Cyclic Redundancy Check (CRC) in Downlink Control Information (DCI), where the first indication information is used to indicate that the downlink data is high-reliability low-latency data.

Optionally, when the first indication information indicates a plurality of modulation schemes, the terminal device may determine the modulation schemes according to a bit length of the feedback information.

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

For another example, the first indication information indicates a Binary Phase Shift Keying (BPSK) modulation scheme and an OOK modulation scheme. When the terminal equipment determines that the bit length of the feedback information is 1bit, the terminal equipment maps the bit value of the feedback information into a complex value symbol according to a BPSK modulation mode; when the terminal equipment determines that the bit length of the feedback information is 2 bits, the terminal equipment maps the bit value of the feedback information into a complex value symbol according to a multi-bit OOK modulation mode.

In the above description, the process of determining the modulation mode by the terminal device in the embodiment of the present application is introduced, and the process of modulating the feedback information by the terminal device in the OOK modulation mode in the embodiment of the present application is described below.

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

the mapping relationship between the complex-valued symbol d (i) and the value of the feedback information bit is shown in fig. 5.

For example, if the feedback information bit takes a value of 0, then b (i) the mapped complex symbol

Under a complex coordinate system as shown in fig. 6.

For another example, if the feedback information bit takes a value of 1, b (i) is mapped to a complex symbol d (i) equal to 0, as shown in fig. 7 in a complex coordinate system.

If the modulation mode determined by the terminal device is a multi-bit OOK modulation mode, the feedback information bit pair (bit value b (2i) of the 2 i-th bit in the feedback information and 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 fig. 8.

For example, if the feedback information bit pair value is b (2i) ═ 0 and b (2i +1) ═ 0, then the complex-valued symbols mapped by b (2i) and b (2i +1) are obtained

Under a complex coordinate system as shown in fig. 9.

For another example, if the feedback information bit pair value is b (2i) ═ 0 and b (2i +1) ═ 1, then the complex-valued symbol d (i) ═ 1 mapped by b (2i) and b (2i +1) is shown in fig. 10 in a complex coordinate system.

For another example, if the feedback information bit pair value is b (2i) ═ 1 and b (2i +1) ═ 0, then complex-valued symbols d (i) ═ j mapped by b (2i) and b (2i +1) are shown in fig. 11 in a complex coordinate system.

For another example, if the feedback information bit pair value is b (2i) 1 and b (2i +1) 1, the complex-valued symbol d (i) mapped by b (2i) and b (2i +1) is 0, as shown in fig. 12 in a 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.

For example, the terminal device may determine a complex-valued symbol block (the block of complex-valued block) according to formula (3):

wherein y (n) is a block of complex valued symbols, d (0) is a complex valued symbol,

a low peak to average power ratio (PAPR) sequence,

the number of subcarriers included for a resource block.

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

wherein the content of the first and second substances,

is the first sequence or the second sequence, w_i(m) is an orthogonal sequence,

the number of OFDM (orthogonal frequency division multiplexing) symbols occupied by the uplink control channel in a time domain continuous manner.

It should be understood that the above equations (3) and (4) are one possible implementation manner for determining the first sequence or the second sequence, and there may be other implementation manners for determining the first sequence or the second sequence, and the embodiment of the present application is not limited thereto.

For example, when the terminal device generates 1-bit feedback information and the modulation scheme is a 1-bit OOK modulation scheme, and when the bit value of the feedback information is 1, the complex-valued symbol d (i) is 0, the terminal device may determine the first sequence according to equations (3) and (4). If it is

Is { exp (-3 pi/4 j), exp (pi/4 j + α), exp (-3 pi/4 j +2 α), exp (-3 pi/4 j +3 α 0), exp (-3 pi/4 j +4 α 1), exp (3 pi/4 j +5 α), exp (-3 pi/4 j +6 α), exp (-pi/4 j +7 α), exp (pi/4 j +8 α), exp (pi/4 j +9 α), exp (pi/4 j +10 α), exp (-3 pi/4 j +11 α) }, y (n) }, { 000000000000 }, and a first sequence may be further obtained according to equation (4) }, where α is a phase offset, and the magnitude of the first sequence is 0.

It should be understood that the amplitude of the first sequence is 0, and the amplitude of each element in the first sequence is 0.

When the bit of the feedback information takes 0, the complex value symbol

The terminal device may then determine the second sequence according to equation (3) and equation (4). If it is

Is { exp (-3 π/4j), exp (π/4j + α), exp (-3 π/4j +2 α), exp (-3 π/4j +3 α), exp (-3 π/4j +4 α 1), exp (3 π/4j +5 α), exp (-3 π/4j +6 α), exp (- π/4j +7 α), exp (π/4j +8 635), exp (π/4j +9 α), exp (π/4j +10 α), exp (-3 π/4j +11 7378) }, then y (n) } exp { 2 π/4j), exp (2 π/4j + α), exp (-2 π/4j +2 α), exp (-362 π/4j +3 j + 29), exp (2 π/4j + α), exp (exp + 464 j) may be obtained as a second-th-2, exp (8) }, exp (464 j), and further, and the second amplitude value of exp (2) may be obtained according to the following equation (7) ((π/3 π/4j + 468) } 7) }.

It is to be understood that a magnitude of 1 for the second sequence may also be understood as a magnitude of 1 for each element in the second sequence.

For another example, when the terminal device generates 2-bit feedback information and the modulation scheme is a multi-bit OOK modulation scheme, and the bit value of the feedback information is 11, the complex-valued symbol d (i) is 0, the terminal device may determine the first sequence according to equations (3) and (4). If it is

Is { exp (-3 pi/4 j), exp (pi/4 j + α), exp (-3 pi/4 j +2 α), exp (-3 pi/4 j +3 α 0), exp (-3 pi/4 j +4 α), exp (3 pi/4 j +5 α), exp (-3 pi/4 j +6 α), exp (-pi/4 j +7 α), exp (pi/4 j +8 α), exp (pi/4 j +9 α), exp (pi/4 j +10 α), exp (-3 pi/4 j +11 α) }, y (n) }, { 000000000000 }, and a first sequence may be further obtained according to equation (4). the first sequence has a magnitude of 0.

When the bit value of the feedback information is 01, the complex-valued symbol d (i) ═ 1, and the terminal device may determine the second sequence according to equations (3) and (4). If it is

For { exp (-3 π/4j), exp (π/4j + α), exp (-3 π/4j +2 α), exp (-3 π/4j +3 α), exp (-3 π/4j +4 α 1), exp (3 π/4j +5 α), exp (-3 π/4j +6 α), exp (- π/4j +7 α), exp (π/4j +8 635), exp (π/4j +9 α), exp (π/4j +10 α), exp (-3 π/4j +11 7378) }, y (n) } exp { 1 π/4j), exp (5 π/4j + α), exp (1 π/4j +2 α), exp (361 π/4j +3 j), exp (1 π/4j + 357), exp (464 j + 7), exp (464 j + 355), exp (464 j + 7), and the second amplitude value of exp (π/4j + 468) }, as a further derived from the exp/3 π/4j +7, exp (464 j + 7), exp + 7), and the second amplitude value of the exp +7, as a further derived from the exp + 7.

When the bit value of the feedback information is 10, the complex-valued symbol d (i) ═ j, and the terminal device may determine the second sequence according to equations (3) and (4). If it is

Is { exp (-3 pi/4 j), exp (pi/4 j + α), exp (-3 pi/4 j +2 α), exp (-3 pi/4 j +3 α), exp (-3 pi/4 j +4 α), exp (3 pi/4 j +5 α), exp (-3 pi/4 j +6 α), exp (-pi/4 j +7 α), exp (pi)/4j +8 α), exp (pi/4 j +9 α), exp (pi/4 j +10 α 0), exp (-3 pi/4 j +11 α 1) }, then y (n) ({ exp (-5 pi/4 j), exp (-pi/4 j + α 2), exp (-5 pi/4 j +2 α 3), exp (-5 pi/4 j +3 α 4), exp (-5 pi/4 j +4 α), exp (1 pi/4 j +5 α), exp (-5 pi/4 j +6 α), exp (-3 pi/4 j +7 α), exp (-pi/4 j +8 α), exp (-pi/4 j +9 α), exp (-pi/4 j +10 α), exp (-5 pi/4 j +11 α) }, and further the second sequence amplitude may be obtained according to equation (4).

When the bit of the feedback information takes 00, the complex value symbol

The terminal device may determine the second sequence according to equation (3) and equation (4). If it is

Is { exp (-3 π/4j), exp (π/4j + α), exp (-3 π/4j +2 α), exp (-3 π/4j +3 α), exp (-3 π/4j +4 α 1), exp (3 π/4j +5 α), exp (-3 π/4j +6 α), exp (- π/4j +7 α), exp (π/4j +8 635), exp (π/4j +9 α), exp (π/4j +10 α), exp (-3 π/4j +11 7378) }, then y (n) } exp { 2 π/4j), exp (2 π/4j + α), exp (-2 π/4j +2 α), exp (-362 π/4j +3 j + 29), exp (2 π/4j + α), exp (exp + 464 j) may be obtained as a second-th-2, exp (8) }, exp (464 j), and further, and the second amplitude value of exp (2) may be obtained according to the following equation (7) ((π/3 π/4j + 468) } 7) }.

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

In the embodiment of the application, the terminal device may determine the sequences with different amplitudes according to whether the downlink data is successfully received or unsuccessfully received, which is beneficial to reducing the interference of the uplink control channel introduced by the acknowledgement message, thereby being beneficial to improving the transmission efficiency of the system.

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

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

wherein a is greater than 0 and less than 1.

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

Illustratively, y (n) { a · exp (-2 π/4j), a · exp (2 π/4j + α), a · exp (-2 π/4j +2 α), a · exp (-2 π/4j +3 α), a · exp (-2 π/4j +4 α), a · exp (π j +5 α), a · exp (-2 π/4j +6 α), a · exp (7 α), a · exp (2 π/4j +8 α), a · exp (2 π/4j +9 α), a · exp (2 π/4j +10 α), a · exp (-2 π/4j +11 α) } may be determined by equation (3). The first sequence may further be obtained according to equation (4). The first sequence has an amplitude a.

For example, y (n) { (1+ a) · exp (-2 pi/4 j), (1+ a) · exp (2 pi/4 j + α), (1+ a) · exp (-2 pi/4 j +2 α), (1+ a) · exp (-2 pi/4 j +3 α), (1+ a) · exp (-2 pi/4 j +4 α), (1+ a) · exp (pi j +5 α), (1+ a) · exp (-2 pi/4 j +6 α), (1+ a) · exp (7 α), (1+ a) · exp (2 pi/4 j +8 α), (1+ a) · exp (2 pi/4 j +9 α), (1+ a) · exp (2 pi/4 j +10 α), (1+ a) · exp (-2 pi/4 j +11 α) can be determined by equation (3). The second sequence may further be obtained according to equation (4). The second sequence has an amplitude of 1+ a.

The above describes a way of determining the first sequence or the second sequence by complex-valued symbols, and another way of determining the first sequence or the second sequence is described below.

Optionally, the determining, by the terminal device, the first sequence or the second sequence includes:

the terminal equipment determines feedback information, wherein the feedback information is used for indicating that the downlink data is successfully or unsuccessfully received;

the terminal device determines the first sequence or the second sequence according to the feedback information and a preset mapping relationship, wherein the preset mapping relationship is a mapping relationship between a bit value of the feedback information and a sequence.

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

TABLE 1 mapping relationship between bit values and sequences of feedback information

Bit dereferencing of feedback information	0	1
			Sequence of	Second sequence	First sequence

For example, when the bit value of the feedback information is 1, the terminal device may determine a first sequence to be transmitted according to table 1, where the first sequence may be { 0000000000000000 }. The first sequence has an amplitude of 0.

For example, when the bit value of the feedback information is 0, the terminal device may determine, according to table 1, a second sequence to be transmitted, where the second sequence may be { exp (-2 pi/4 j), exp (2 pi/4 j + α), exp (-2 pi/4 j +2 α), exp (-2 pi/4 j +3 α), exp (-2 pi/4 j +4 α), exp (pi j +5 α), exp (-2 pi/4 j +6 α), exp (7 α), exp (2 pi/4 j +8 α), exp (2 pi/4 j +9 α), exp (2 pi/4 j +10 α), exp (-2 pi/4 j +11 α }. The second sequence has an amplitude of 1.

Table 2 shows the mapping relationship between the bit values and the sequence of another 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 a first sequence to be transmitted according to table 2, where the first sequence may be { 0000000000000000 }. The first sequence has an amplitude of 0.

For another example, when the bit value of the feedback information is 10, 01, or 00, the terminal device may determine, according to table 2, a second sequence to be transmitted, where the second sequence may be { exp (-2 pi/4 j), exp (2 pi/4 j + α), exp (-2 pi/4 j +2 α), exp (-2 pi/4 j +3 α), exp (-2 pi/4 j +4 α), exp (pi j +5 α), exp (-2 pi/4 j +6 α), exp (7 α), exp (2 pi/4 j +8 α), exp (2 pi/4 j +9 α), exp (2 pi/4 j +10 α), exp (-2 pi/4 j +11 α }. The second sequence has an amplitude of 1.

Table 3 shows the mapping relationship between the bit values and the sequence of another feedback information

When the bit value of the feedback information is 11, the terminal device may determine a first sequence to be sent according to table 3, where the first sequence may be the same as the first sequence in table 2.

When the bit value of the feedback information is 00, the terminal device may determine a second sequence to be sent according to table 3; when the bit value of the feedback information is 01, the terminal device may determine a third sequence to be sent according to table 3; when the bit value of the feedback information is 10, the terminal device may determine the fourth sequence to be sent according to table 3. The second, third and fourth sequences may be the same magnitude; alternatively, the second, third and fourth sequences may be partially identical in magnitude; alternatively, the second, third and fourth sequences may all have different magnitudes. And the amplitude of the first sequence is different from the amplitude of any one of the second sequence, the third sequence and the fourth sequence.

In the embodiment of the application, the terminal device may determine the sequences with different amplitudes according to whether the downlink data is successfully or unsuccessfully received, and the amplitude of the sequence corresponding to the positive acknowledgement message is smaller than the amplitude of the sequence corresponding to the negative acknowledgement message, which is beneficial to reducing the interference of the uplink control channel introduced by the positive acknowledgement message, thereby being beneficial to improving 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 may transmit the first sequence or the second sequence to the network device on a predetermined uplink resource without contending for the uplink resource to transmit the first sequence or the second sequence.

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

Optionally, the sending, by the terminal device, the first sequence or the second sequence to the network device includes:

and the terminal equipment sends the first sequence or the second sequence to the network equipment on one or more uplink resources successfully contended.

In the unlicensed frequency band, the terminal device needs to access through contention, and the first sequence or the second sequence may be sent to the network device on the uplink resource successfully contended only if the contention is successful.

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

When receiving the downlink data, the terminal device may determine an uplink resource set corresponding to the downlink data, and the terminal device may contend from the uplink resource set to obtain one or more uplink resources. The terminal device may send the first sequence or the second sequence to the network device on at least a portion of the one or more uplink resources.

For example, when the terminal device successfully receives the downlink data, the terminal device may 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 may obtain uplink resource 1 and uplink resource 2 through contention. The terminal device may send the first sequence on uplink resource 1 and uplink resource 2 that successfully compete; or, the terminal device may also send the first sequence on the uplink resource 1 successfully contended; alternatively, the terminal device may also transmit the first sequence on the uplink resource 2 in which the contention succeeds.

Fig. 13 shows a schematic diagram of a terminal device transmitting a sequence on an uplink resource that successfully competes, as shown in fig. 13, a network device transmits downlink data to the terminal device, the terminal device does not successfully receive the downlink data, the terminal device may compete for uplink resource 1, uplink resource 2 and uplink resource 3, and the terminal device successfully competes for uplink resource 3, and then may transmit the second sequence on the 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 successfully receives the downlink data; and when the network equipment receives the second sequence sent by the terminal equipment, the network equipment determines that the terminal equipment does not successfully receive the downlink data.

Optionally, when the network device receives the first sequence on a predetermined uplink resource, 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 on the predetermined uplink resource, the network device determines that the terminal device does not successfully receive the downlink data.

Optionally, the receiving, by the network device, the first sequence sent by the terminal device includes:

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

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, the terminal device may obtain one or more uplink resources from the uplink resource set in a contention manner, and send the first sequence on the one or more uplink resources, where the network device needs to receive on each uplink resource in the uplink resource set.

Optionally, the receiving, by the network device, the second sequence sent by the terminal device includes:

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

In the method for transmitting information in the embodiment of the application, the terminal device can determine the sequences with different amplitudes according to the successful or unsuccessful reception of the downlink data, which is beneficial to reducing the interference of the uplink control channel caused by the response message corresponding to the sequence with lower amplitude and improving the receiving accuracy of the network device.

Fig. 14 shows a schematic flow chart of a method 300 for transmitting information according to an embodiment of the present application, and as shown in fig. 14, an execution subject of the method 300 may be an apparatus for transmitting information (for example, a terminal device or a chip or apparatus of the terminal device, a network device or a chip or apparatus of the network device), and the method 300 includes:

and S310, the terminal equipment receives downlink data sent by the network equipment.

For example, the terminal device may receive downlink data sent by the network device according to a predetermined period. The terminal device may receive downlink data 1 in a first predetermined period and schedule DCI for the downlink data, which may instruct the terminal device to receive downlink data in each subsequent predetermined period. In each predetermined period thereafter, the terminal device receives downlink data and does not receive DCI scheduling the downlink data. For example, in a second predetermined period, the terminal device may receive downlink data 2 and not receive DCI scheduling the downlink data 2; in the third predetermined period, the terminal device may receive downlink data 3 and not receive DCI scheduling the downlink data 3.

For another example, the network device configures the period to transmit downlink data through higher layer signaling (e.g., RRC signaling). In this case, the network device periodically transmits the downlink data to the terminal device, and does not need to transmit the downlink control information again. The terminal device receives downlink data on each resource receiving the downlink data and does not receive downlink control information scheduling the data. For another example, the network device issues the downlink data and the DCI for scheduling the downlink data according to the predetermined period, the terminal device may receive the downlink data sent by the network device according to the predetermined period, and the terminal device receives the DCI for scheduling the downlink data before receiving the downlink data in each preset period.

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

For example, for a case that the network device only issues DCI for scheduling downlink data in a first predetermined period, or a case that the network device periodically transmits downlink data to the terminal device and does not need to transmit DCI, the terminal device may transmit first information to the network device when the downlink data is not successfully received; and when the terminal equipment successfully receives the downlink data, the terminal equipment does not send the first information to the network equipment.

Fig. 15 is a schematic diagram illustrating that a terminal device feeds back first information, and as shown in fig. 15, in a first predetermined period, if the terminal device successfully receives downlink data 1, the terminal device does not send the first information on uplink resource 1; in the nth predetermined period, if the terminal device does not successfully receive the downlink data N, the terminal device sends the first information on the uplink resource N. N is a positive integer greater than 1.

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

When the terminal device does not successfully receive the downlink data, it may first determine a 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, generate a complex-valued symbol group, and send the complex-valued symbol group to a network device; when the terminal device successfully receives the downlink data, the terminal device does not generate feedback information bits, and therefore does not send complex-valued symbol groups to the network device.

Alternatively, the first information may be a sequence.

When the first information is a sequence, and when the terminal device does not 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 does not successfully receive the downlink data, the second sequence may be determined first, and the process of determining the second sequence may refer to the description in the method 200, which is not described herein again for brevity.

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, or may also understand that when the terminal device successfully receives the downlink data, the terminal device does not generate corresponding feedback information bits, so that the terminal device does not send the first information to the network device.

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

For another example, the terminal device determines that the bit length of the feedback information is 2 bits, and 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, and when the bit value of the feedback information is 00, the terminal device sends a second sequence to the network device; when the bit value of the feedback information is 01, the terminal device sends a third sequence to the network device; when the bit value of the feedback information is 10, the terminal device sends a 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 can refer to the description in the method 200, and are not repeated herein for brevity.

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

It should also be understood that, for the case that the terminal device is successfully receiving the downlink data, 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 there is no other uplink feedback information. And when the terminal equipment does not generate the corresponding feedback information bit and has other uplink feedback information, the terminal equipment only sends the other uplink feedback information.

For example, the other uplink feedback information may be feedback information of downlink data that is aperiodically sent by the terminal device to the network device; alternatively, the other uplink feedback information may also be Channel State Information (CSI) generated by the terminal device during channel measurement.

For another example, for a case where the network device issues downlink data and schedules DCI of the downlink data according to a predetermined period, the terminal device may send the first information to the network device when the downlink data is not successfully received; the terminal device may send the second information to the network device when not receiving the DCI for scheduling the downlink data; and when the terminal equipment successfully receives the downlink data, the terminal equipment does not send the first information or the second information to the network equipment.

When the terminal equipment determines that the bit length of the feedback information is 1bit, and when the bit value of the feedback information is 0, the terminal equipment sends the first information to the network equipment; when the bit value of the feedback information is 1, indicating that the terminal device has not successfully received the DCI for scheduling the downlink data, the terminal device may send second information to the network device; when the terminal device determines that the downlink data is successfully received, the first information or the second information may not be sent to the network device.

Optionally, the first information and the second information are sequences of different magnitudes. Optionally, the sending, by the terminal device, first information to the network device includes:

and the terminal equipment sends the first information to the network equipment on a preset uplink resource.

Optionally, the sending, by the terminal device, first information to the network device includes:

and the terminal equipment sends the first information to the network equipment on one or more uplink resources successfully contended.

When the terminal device determines that the downlink data is not successfully received, the terminal device may contend to obtain one or more uplink resources from the set of uplink resources, and send the first information to the network device on at least a 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; and when the network equipment does not receive the first information sent by the terminal equipment, the network equipment determines that the terminal equipment successfully receives the downlink data.

Optionally, the receiving, by the network device, the first information sent by the terminal device includes:

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, and the method includes:

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

Optionally, the receiving, by the network device, the first information sent by the terminal device includes:

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

The network device may configure an uplink resource set to allow the terminal device to compete, and the downlink data and the uplink resource set may have a corresponding relationship. The terminal device may contend to obtain one or more uplink resources from the uplink resource set, and may send the first information to the network device on the one or more uplink resources that are contended successfully, where the network device receives the first information on each uplink resource in the uplink resource set, and 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 successfully receives 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 that the network device only issues the DCI for scheduling the downlink data in the first predetermined period, or the case that the network device periodically transmits the downlink data to the terminal device without transmitting the DCI, when the network device receives the first information, the network device may retransmit the downlink data to the terminal device.

For the condition that the network equipment issues the downlink data and the DCI for scheduling the downlink data according to the preset period, when the network equipment receives the first information, the network equipment can retransmit the downlink data and schedule the DCI for the downlink data to the terminal equipment; when the network device receives the second information, the network device may retransmit the downlink data to the terminal device.

According to the method for transmitting the information, the terminal equipment does not send the information to the network equipment when the downlink data is successfully received, so that the interference of the uplink control information introduced by the acknowledgement is reduced, and the spectrum use efficiency is improved.

The method for transmitting information provided in the present application is described in detail with reference to fig. 5 to 15. Hereinafter, a device for transmitting information according to an embodiment of the present application will be described in detail with reference to the accompanying drawings.

The embodiment of the application also provides a device for realizing any one of the methods. For example, an apparatus is provided that includes means (or elements) for performing the steps performed by the terminal in any of the above methods. For another example, another apparatus is also provided, which includes a module (or unit) for implementing each step performed by the network device in any one of the above methods.

Fig. 16 shows a schematic block diagram of an apparatus 400 for transmitting information according to an embodiment of the present application, and 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 method 200 or the method 300, or a chip configured in the terminal device.

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

a processing module 420, configured to determine a first sequence or a second sequence, where the first sequence is determined when the apparatus successfully receives the downlink data; the second sequence is a sequence determined when the apparatus has not successfully received the downlink data; the first sequence has a different magnitude than the second sequence;

the transceiver module is further configured to send the first sequence or the second sequence to the network device.

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

Optionally, the processing module 420 is specifically configured to:

determining feedback information, wherein the feedback information is used for indicating successful or unsuccessful reception of the downlink data;

mapping the feedback information into a complex value symbol according to a first modulation mode;

determining the first sequence or the second sequence according to the complex-valued symbol.

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

Optionally, when the one or more modulation schemes are multiple modulation schemes, the processing module 420 is further configured to determine the first modulation scheme from the multiple modulation schemes according to the feedback information.

Optionally, the processing module 420 is specifically configured to:

determining feedback information, wherein the feedback information is used for indicating successful or unsuccessful reception of the downlink data;

and determining the first sequence or the second sequence according to the feedback information and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the bit value of the feedback information and the sequence.

Optionally, the transceiver module 410 is specifically configured to:

and transmitting the first sequence or the second sequence to the network equipment on one or more uplink resources successfully contended.

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

a processing module 420, configured to determine that the downlink data is successfully received or the downlink data is not successfully received;

the transceiver module 410 is further configured to send a first message to the network device when the processing module determines that the downlink data is not received successfully; or, the processing module is configured to not send the first information to the network device when the processing module successfully receives the downlink data.

Optionally, the transceiver module 420 is specifically configured to:

and sending the first information to the network equipment on one or more uplink resources successfully contended.

It should be understood that the apparatus 400 may correspond to a terminal device in the method 200 or the method 300 of transmitting information according to an embodiment of the present application, and the apparatus 400 may include a unit for performing the method performed by the terminal device of the method 200 or the method 300. Also, the units and other operations and/or functions described above in the apparatus 400 are respectively for implementing the corresponding flows of the method 200 or the method 300. For the specific process of each unit executing the corresponding steps, reference is made to the description of the method embodiment in conjunction with fig. 4 and fig. 14, and for brevity, the description is omitted here.

Fig. 17 shows a schematic block diagram of an apparatus 500 for transmitting information according to an embodiment of the present application, and as shown in fig. 17, the apparatus 500 for transmitting information may include a transceiver module 510 and a processing module 520.

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

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

the transceiver module 510 is further configured to receive a first sequence or a second sequence sent by a terminal device;

a processing module 520, 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, when the transceiver module receives the second sequence sent by the terminal device, determining that the terminal device has not successfully received the downlink data;

wherein the first sequence has a different magnitude than the second sequence.

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

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

Optionally, the transceiver module 510 is specifically configured to:

and receiving the first sequence or the second sequence sent by the terminal equipment on one or more uplink resources.

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

a processing module 520, configured 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, the determining unit is configured to determine that the terminal device successfully receives 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 configured to:

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

Optionally, the transceiver module 510 is specifically configured to:

and receiving the first information sent by the terminal equipment on one or more uplink resources.

It should be understood that the apparatus 500 may correspond to a network device in the method 200 or the method 300 of transmitting information according to an embodiment of the present application, and the apparatus 500 may include a unit for performing the method performed by the network device performing the method 200 or the method 300. Also, the units and other operations and/or functions described above in the apparatus 500 are respectively for implementing the corresponding flows of the method 200 or the method 300. For the specific process of each unit executing the corresponding steps, reference is made to the description of the method embodiment in conjunction with fig. 4 and fig. 14, and for brevity, the description is omitted here.

It should be understood that the division of the units in the above apparatus is only a division of logical functions, and the actual implementation may be wholly or partially integrated into one physical entity or may be physically separated. And the units in the device can be realized in the form of software called by the processing element; or may be implemented entirely in hardware; part of the units can also be realized in the form of software called by a processing element, and part of the units can be realized in the form of hardware. For example, each unit may be a processing element separately set up, or may be implemented by being integrated into a chip of the apparatus, or may be stored in a memory in the form of a program, and a function of the unit may be called and executed by a processing element of the apparatus. In addition, all or part of the units can be integrated together or can be independently realized. The processing element described herein may in turn be a processor, which may be an integrated circuit having signal processing capabilities. In the implementation process, the steps of the method or the units above may be implemented by integrated logic circuits of hardware in a processor element or in a form called by software through the processor element.

In one example, the units in any of the above apparatuses may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), or a combination of at least two of these integrated circuit forms. As another example, when a unit in a device may be implemented in the form of a processing element scheduler, the processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of invoking programs. As another example, these units may 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 apparatus for receiving signals from other apparatuses. For example, when the device is implemented in the form of a chip, the receiving unit is an interface circuit for the chip to receive signals from other chips or devices. The above unit for transmitting is an interface circuit of the apparatus for transmitting a signal to other apparatuses. For example, when the device is implemented in the form of a chip, the transmitting unit is an interface circuit for the chip to transmit signals to other chips or devices.

Fig. 18 shows a schematic structural diagram of a terminal device provided in an embodiment of the present application, which may be the terminal device in the above embodiment, for implementing the operation of the terminal device in the above embodiment. As shown in fig. 18, the terminal includes: an antenna 610, a radio frequency part 620, a signal processing part 630. The antenna 610 is connected to the radio frequency part 620. In the downlink direction, the rf section 620 receives information transmitted by the network device through the antenna 610, and transmits the information transmitted by the network device to the signal processing section 630 for processing. In the uplink direction, the signal processing part 630 processes the information of the terminal and sends the information to the radio frequency part 620, and the radio frequency part 620 processes the information of the terminal device and sends the information to the network device through the antenna 610.

The signal processing section 630 may include a modem subsystem for implementing processing of each communication protocol layer of data; the system also comprises a central processing subsystem used for realizing the processing of the operating system and the application layer of the terminal equipment; in addition, other subsystems, such as a multimedia subsystem for controlling a camera, a screen display, etc. of the terminal device, a peripheral subsystem for connecting with other devices, etc. may be included. The modem subsystem may be a separately provided chip. Alternatively, the above means for the terminal device may be located at the modem subsystem.

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

In another implementation, the program for performing the method performed by the terminal device in the above method may be a memory element on a different chip than the processing element, i.e. an off-chip memory element. At this time, the processing element calls or loads a program from the off-chip storage element onto the on-chip storage element to call and execute the method executed by the terminal device in the above method embodiment.

In yet another implementation, the unit of the terminal device for implementing the steps of the above method may be configured as one or more processing elements disposed on the modem subsystem, where the processing elements may be integrated circuits, for example: one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits may be integrated together to form a chip.

The units of the terminal device for realizing the steps of the method can be integrated together and realized in the form of SOC, and the SOC chip is used for realizing the method. At least one processing element and a storage element can be integrated in the chip, and the processing element calls the stored program of the storage element to realize the method executed by the terminal equipment; or, at least one integrated circuit may be integrated in the chip, for implementing the method executed by the above terminal device; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.

It is seen that the above apparatus for a terminal device may comprise at least one processing element and interface circuitry, wherein the at least one processing element is configured to perform the method performed by any one of the terminal devices provided by the above method embodiments. The processing element may: namely, the method calls the program stored in the storage element to execute part or all of the steps executed by the terminal equipment; it is also possible to: that is, some or all of the steps performed by the terminal device are performed by integrated logic circuits of hardware in the processor element in combination with the instructions; of course, some or all of the steps performed by the terminal device may be performed in combination with the first manner and the second manner.

The processing elements herein, like those described above, may be a general purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or one or more microprocessors DSP, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.

The storage element may be a memory or a combination of a plurality of storage elements.

Fig. 19 shows a schematic structural diagram of a network device provided in an embodiment of the present application, which may be the network device in the foregoing embodiment, for implementing operations of the network device in the foregoing embodiments. As shown in fig. 19, the network device includes: antenna 701, radio frequency device 702, baseband device 703. The antenna 701 is connected to a radio frequency device 702. In the uplink direction, the rf apparatus 702 receives information transmitted by the terminal device through the antenna 701, and transmits the information transmitted by the terminal device to the baseband apparatus 703 for processing. In the downlink direction, the baseband device 703 processes the information of the terminal device and sends the information to the radio frequency device 702, and the radio frequency device 702 processes the information of the terminal device and sends the information to the terminal device through the antenna 701.

The baseband device 703 may include one or more processing elements 7031, including, for example, a host CPU and other integrated circuits. In addition, the baseband device 703 may further include a storage element 7032 and an interface 7033, where the storage element 7032 is used to store programs and data; the interface 7033 is used for exchanging information with the radio frequency device 702, and is, for example, a Common Public Radio Interface (CPRI). The above means for a network device may be located on the baseband apparatus 703, for example, the above means for a network device may be a chip on the baseband apparatus 703, the chip including at least one processing element and interface circuitry, wherein the processing element is configured to perform the steps of any of the methods performed by the above network device, and the interface circuitry is configured to communicate with other devices. In one implementation, the unit of the network device for implementing the steps in the above method may be implemented in the form of a processing element scheduler, for example, an apparatus for the network device includes a processing element and a storage element, and the processing element calls a program stored in the storage element to execute the method executed by the network device in the above method embodiment. The memory elements may be memory elements on the same chip as the processing element, i.e. on-chip memory elements, or may be memory elements on a different chip than the processing element, i.e. off-chip memory elements.

In another implementation, the unit of the network device for implementing the steps of the above method may be configured as one or more processing elements, which are disposed on the baseband apparatus, where the processing elements may be integrated circuits, for example: one or more ASICs, or one or more DSPs, or one or more FPGAs, or a combination of these types of integrated circuits. These integrated circuits may be integrated together to form a chip.

The units of the network device for implementing the steps of the above method may be integrated together and implemented in the form of an SOC, for example, the baseband device includes the SOC chip for implementing the above method. At least one processing element and a storage element can be integrated in the chip, and the method executed by the network equipment is realized in the form that the processing element calls the stored program of the storage element; or, at least one integrated circuit may be integrated in the chip, for implementing the method executed by the above network device; alternatively, the above implementation modes may be combined, the functions of the partial units are implemented in the form of a processing element calling program, and the functions of the partial units are implemented in the form of an integrated circuit.

It is seen that the above apparatus for a network device may comprise at least one processing element and interface circuitry, wherein the at least one processing element is configured to perform the method performed by any one of the network devices provided by the above method embodiments. The processing element may: namely, calling the program stored in the storage element to execute part or all of the steps executed by the network equipment; it is also possible to: that is, some or all of the steps performed by the network device are performed by integrated logic circuitry of hardware in the processor element in combination with the instructions; of course, some or all of the steps performed by the above network device may also be performed in combination with the first manner and the second manner.

The processing elements herein, like those described above, may be a general purpose processor, such as a CPU, or one or more integrated circuits configured to implement the above methods, such as: one or more ASICs, or one or more microprocessors DSP, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms.

The storage element may be a memory or a combination of a plurality of storage elements.

Fig. 20 shows another schematic structural diagram of a network device provided in an embodiment of the present application, which may be the network device in the foregoing embodiment, and is used to implement the operation of the network device in the foregoing embodiment.

As shown in fig. 20, the network device includes: the processor 810, the memory 820, and the interface 830 are in signal connection with the processor 810, the memory 820, and the interface 830.

The above apparatus 500 for transmitting information may be located in the network device, and the functions of the respective units may be implemented by the processor 810 calling a program stored in the memory 820. That is, the above apparatus 500 for transmitting information includes a memory for storing a program called by the processor to perform the method in the above method embodiment and a processor. The processor here may be an integrated circuit with signal processing capabilities, such as a CPU. Or the functions of the above respective units may be implemented by one or more integrated circuits configured to implement the above methods. For example: one or more ASICs, or one or more microprocessors DSP, or one or more FPGAs, etc., or a combination of at least two of these integrated circuit forms. Alternatively, the above implementations may be combined.

According to the method provided by the embodiment of the present application, the present application further provides a computer program product, which includes: computer program code which, when run on a computer, causes the computer to perform the method in the above-described embodiments.

According to the method provided by the embodiment of the present application, the present application also provides a computer readable medium, the computer readable medium stores program code, and when the program code runs on a computer, the computer is caused to execute the method in the above embodiment.

The terminal device and the network device in the above-mentioned various apparatus embodiments may completely correspond to the terminal device or the network device in the method embodiment, and the corresponding module or unit performs the corresponding steps, for example, when the apparatus is implemented in the form of a chip, the receiving unit may be an interface circuit of the chip for receiving signals from other chips or apparatuses. The above unit for transmitting is an interface circuit of the apparatus for transmitting a signal to other apparatuses, for example, when the apparatus is implemented in the form of a chip, the transmitting unit is an interface circuit of the chip for transmitting a signal to other chips or apparatuses.

An embodiment of the present application further provides a communication system, including: the terminal device and/or the network device.

In the embodiment of the present application, it should be noted that the above method embodiments of the embodiment of the present application may be applied to a processor, or implemented by a processor. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor described above may be a general purpose processor, a DSP, an ASIC, an FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

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

The terms "upstream" and "downstream" appearing in the present application are used to describe the direction of data/information transmission in a specific scenario, for example, the "upstream" direction generally refers to the direction of data/information transmission from the terminal device to the network side, or the direction of transmission from the distributed unit to the centralized unit, and the "downstream" direction generally refers to the direction of data/information transmission from the network side to the terminal device, or the direction of transmission from the centralized unit to the distributed unit.

Various objects such as various messages/information/devices/network elements/systems/devices/actions/operations/procedures/concepts may be named in the present application, it is to be understood that these specific names do not constitute limitations on related objects, and the named names may vary according to circumstances, contexts, or usage habits, and the understanding of the technical meaning of the technical terms in the present application should be mainly determined by the functions and technical effects embodied/performed in the technical solutions.

The structures of the CU and the DU in the embodiment of the present application are not limited to the 5G NR gbb, and may also be applied to a scenario in which an LTE base station is divided into the CU and the DU; a CU may be further divided into two parts, CP and UP. Optionally, when the LTE base station is used, the protocol layer does not include the SDAP layer.

The network architecture and the service scenario described in the embodiment of the present application are for the convenience of readers to clearly understand the technical solution of the embodiment of the present application, and do not form a limitation on the technical solution provided in the embodiment of the present application, and it is known by a person of ordinary skill in the art that the technical solution provided in the embodiment of the present application is also applicable to similar technical problems along with the evolution of the network architecture and the appearance of a new service scenario.

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

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

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

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

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

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

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

Claims (32)

1. A method of transmitting information, comprising:

the terminal equipment receives downlink data from the network equipment;

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

and the terminal equipment sends the first sequence or the second sequence to the network equipment.

2. The method of claim 1, wherein the magnitude of the first sequence is less than the magnitude of the second sequence.

3. The method according to claim 1 or 2, wherein the terminal device determines the first sequence or the second sequence, comprising:

the terminal equipment determines feedback information, wherein the feedback information is used for indicating that the downlink data is successfully or unsuccessfully received;

the terminal equipment maps the feedback information into a complex value symbol according to a first modulation mode;

and the terminal equipment determines the first sequence or the second sequence according to the complex-valued symbol.

4. The method of claim 3, wherein before the terminal device maps the feedback information to complex-valued symbols according to a first modulation scheme, 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 schemes, and the one or more modulation schemes include the first modulation scheme.

5. The method of claim 4, wherein when the one or more modulation schemes are multiple modulation schemes, the method further comprises:

and determining the first modulation mode from the plurality of modulation modes according to the feedback information.

6. The method according to claim 1 or 2, wherein the terminal device determines the first sequence or the second sequence, comprising:

the terminal equipment determines feedback information, wherein the feedback information is used for indicating that the downlink data is successfully or unsuccessfully received;

and the terminal equipment determines the first sequence or the second sequence according to the feedback information and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the bit value of the feedback information and the sequence.

7. The method according to any of claims 1 to 6, wherein the terminal device sending the first sequence or the second sequence to the network device comprises:

and the terminal equipment sends the first sequence or the second sequence to the network equipment on one or more uplink resources successfully contended.

8. A method of transmitting information, comprising:

the network equipment sends downlink data to the terminal equipment;

when the network equipment receives the first sequence sent by the terminal equipment, the network equipment determines that the terminal equipment 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 does not successfully receive the downlink data;

wherein the first sequence has a different magnitude than the second sequence.

9. The method of claim 8, wherein the magnitude of the first sequence is less than the magnitude of the second sequence.

10. The method according to claim 8 or 9, wherein 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, wherein the first indication information is used for indicating one or more modulation modes, and the one or more modulation modes are used for determining the first sequence or the second sequence.

11. The method according to any one of claims 8 to 10, wherein the network device receiving the first sequence or the second sequence sent by the terminal device comprises:

and the network equipment receives the first sequence or the second sequence sent by the terminal equipment on one or more uplink resources.

12. A method of transmitting information, comprising:

the method comprises the steps that terminal equipment receives downlink data sent by network equipment, and the terminal equipment does not receive downlink control information for scheduling the downlink data;

when the terminal equipment does not successfully receive the downlink data, the terminal equipment sends first information to the network equipment;

and when the terminal equipment successfully receives the downlink data, the terminal equipment does not send the first information to the network equipment.

13. The method of claim 12, wherein the terminal device sends first information to the network device, comprising:

and the terminal equipment sends the first information to the network equipment on one or more uplink resources successfully contended.

14. A method of transmitting information, comprising:

the network equipment sends downlink data to the terminal equipment, and the network equipment does not send downlink control information for scheduling the downlink data to the terminal equipment;

when the network equipment receives first information sent by the terminal equipment, the network equipment determines that the terminal equipment does not successfully receive the downlink data;

and when the network equipment does not receive the first information sent by the terminal equipment, the network equipment determines that the terminal equipment successfully receives the downlink data.

15. The method of claim 14, wherein the network device does not receive the first information sent by the terminal device, comprising:

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

16. The method of claim 14, wherein the network device receives the feedback information sent by the terminal device, and comprises:

and the network equipment receives the feedback information sent by the terminal equipment on one or more uplink resources.

17. An apparatus for transmitting information, comprising:

the receiving and sending module is used for receiving downlink data from the network equipment;

a processing module, configured to determine a first sequence or a second sequence, where the processing module determines the first sequence when the apparatus successfully receives the downlink data; when the device does not successfully receive the downlink data, the processing module determines the second sequence; the amplitude of the first sequence is different from the amplitude of the second sequence;

the transceiver module is further configured to send the first sequence or the second sequence to the network device.

18. The apparatus of claim 17, wherein the magnitude of the first sequence is less than the magnitude of the second sequence.

19. The apparatus according to claim 17 or 18, wherein the processing module is specifically configured to:

determining feedback information, wherein the feedback information is used for indicating successful or unsuccessful reception of the downlink data;

mapping the feedback information into a complex value symbol according to a first modulation mode;

determining the first sequence or the second sequence according to the complex-valued symbol.

20. The apparatus of claim 19, wherein the transceiver module is further configured to receive first indication information from the network device, and wherein the first indication information is used to indicate one or more modulation schemes, and wherein the one or more modulation schemes include the first modulation scheme.

21. The apparatus of claim 20, wherein when the one or more modulation schemes are multiple modulation schemes, the processing module is further configured to determine the first modulation scheme from the multiple modulation schemes according to the feedback information.

22. The apparatus according to claim 17 or 18, wherein the processing module is specifically configured to:

determining feedback information, wherein the feedback information is used for indicating successful or unsuccessful reception of the downlink data;

and determining the first sequence or the second sequence according to the feedback information and a preset mapping relation, wherein the preset mapping relation is the mapping relation between the bit value of the feedback information and the sequence.

23. The apparatus according to any one of claims 17 to 22, wherein the transceiver module is specifically configured to:

and sending the first sequence or the second sequence to the network equipment on one or more uplink resources successfully contended.

24. An apparatus for transmitting information, comprising:

the receiving and sending module is used for sending downlink data to the terminal equipment;

the receiving and sending module is further used for receiving a first sequence or a second sequence sent by the terminal equipment;

the processing module is used for determining that the terminal equipment successfully receives the downlink data when the transceiver module receives the first sequence sent by the terminal equipment; or, the determining unit is configured to determine that the terminal device has not successfully received the downlink data when the transceiver module receives the second sequence sent by the terminal device;

wherein the first sequence has a different magnitude than the second sequence.

25. The apparatus of claim 24, wherein the magnitude of the first sequence is less than the magnitude of the second sequence.

26. The apparatus according to claim 24 or 25, wherein the transceiver module is further configured to send first indication information to the terminal device, where the first indication information is used to indicate one or more modulation schemes, and the one or more modulation schemes are used to determine the first sequence or the second sequence.

27. The apparatus according to any one of claims 24 to 26, wherein the transceiver module is specifically configured to:

and receiving the first sequence or the second sequence sent by the terminal equipment on one or more uplink resources.

28. An apparatus for transmitting information, comprising:

a transceiver module, configured to receive downlink data sent by a network device, where the terminal device does not receive downlink control information for scheduling the downlink data;

a processing module, configured to determine that the downlink data is successfully received or that the downlink data is not successfully received;

the transceiver module is further configured to send first information to the network device when the processing module determines that the downlink data is not successfully received; or, the apparatus is configured to not send the first information to the network device when the processing module successfully receives the downlink data.

29. The apparatus of claim 28, wherein the transceiver module is specifically configured to:

and sending the first information to the network equipment on one or more uplink resources successfully contended.

30. An apparatus for transmitting information, comprising:

a transceiver module, configured to send downlink data to a terminal device, and not send downlink control information for scheduling the downlink data to the terminal device;

the processing module is used for determining that the terminal equipment does not successfully receive the downlink data when the transceiver module receives the first information sent by the terminal equipment; or, the determining unit is configured to determine that the terminal device successfully receives the downlink data when the transceiver module does not receive the first information sent by the terminal device.

31. The apparatus of claim 30, wherein the transceiver module is specifically configured to:

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

32. The apparatus of claim 30, wherein the transceiver module is specifically configured to:

and receiving the first information sent by the terminal equipment on one or more uplink resources.

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