Method, terminal device and network device for transmitting physical uplink control channel PUCCH

Abstract

The embodiment of the present application discloses a terminal device receiving downlink control information DCI sent by a network device, wherein the DCI includes CSI trigger information and configuration information of a PUCCH carrying the aperiodic CSI; when the trigger information triggers the terminal device to report the aperiodic CSI, the terminal device transmits the aperiodic CSI on the PUCCH according to the configuration information of the PUCCH. The method, terminal device and network device of the embodiment of the present application are conducive to improving the transmission performance of the PUCCH.

Description

Technical Field

[0001] The embodiments of the present application relate to the field of communications, and more specifically, to a method, terminal device and network device for transmitting a physical uplink control channel (PUCCH). Background Art

[0002] In a new radio system, aperiodic channel state information (CSI) can be carried by a physical uplink control channel (PUCCH), but there is currently no clear solution for how to transmit aperiodic CSI on the PUCCH. Summary of the invention

[0003] In view of this, the embodiments of the present application provide a method, terminal device and network device for transmitting a physical uplink control channel PUCCH, which is conducive to improving the transmission performance of PUCCH.

[0004] In a first aspect, a method for transmitting a physical uplink control channel PUCCH is provided, the method comprising: a terminal device receives downlink control information DCI sent by a network device, the DCI comprising trigger information of CSI and configuration information of PUCCH carrying the non-periodic CSI; when the trigger information triggers the terminal device to report the non-periodic CSI, the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH.

[0005] By carrying the configuration information of the PUCCH carrying the aperiodic CSI in the DCI, the transmission parameters of the PUCCH can be flexibly adjusted, thereby facilitating the improvement of the transmission performance of the PUCCH.

[0006] The trigger information may not only be a trigger for the terminal device to report the non-periodic CSI, but also a trigger for the corresponding CSI reporting configuration.

[0007] Optionally, the trigger information and configuration information may also be an information field. For example, as long as the terminal device receives the configuration information of PUCCH carried in the DCI, it is required to use PUCCH for non-periodic CSI reporting by default.

[0008] In one possible implementation, the configuration information of the PUCCH includes at least one of the following information: resource configuration information of the PUCCH, a transmit power control TPC command of the PUCCH, a reference signal resource configuration corresponding to the PUCCH, quasi-co-site QCL indication information of the PUCCH, and a demodulation reference signal DMRS configuration of the PUCCH.

[0009] In one possible implementation, the configuration information of the PUCCH includes resource configuration information of the PUCCH, and the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH, including: the terminal device determines the time-frequency resources occupied by the PUCCH and / or the PUCCH resources occupied by the PUCCH according to the resource configuration information of the PUCCH; the terminal device transmits the non-periodic CSI on the time-frequency resources and / or the PUCCH resources.

[0010] In one possible implementation, the configuration information of the PUCCH includes a transmit power control TPC command of the PUCCH, and the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH, including: the terminal device determines the transmit power of the PUCCH according to the TPC command; and the terminal device transmits the non-periodic CSI on the PUCCH using the transmit power.

[0011] In one possible implementation, the terminal device determines the transmit power of the PUCCH according to the TPC command, including: the terminal device determines a closed-loop power adjustment value of the PUCCH according to the TPC command; the terminal device adjusts the calculated transmit power according to the closed-loop power adjustment value; and the terminal device determines the adjusted transmit power as the transmit power of the PUCCH.

[0012] In one possible implementation, the configuration information of the PUCCH includes a reference signal resource configuration of the PUCCH, and the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH, including: the terminal device determines the transmit beam of the PUCCH according to the reference signal resource configuration; and the terminal device uses the transmit beam to transmit the PUCCH.

[0013] In one possible implementation, the terminal device determines the transmit beam of the PUCCH based on the reference signal resource configuration, including: the terminal device determines the transmit beam or receive beam used to transmit the reference signal on the reference signal resource indicated by the reference signal resource configuration as the transmit beam of the PUCCH.

[0014] In one possible implementation, the configuration information of the PUCCH includes a demodulation reference signal DMRS configuration of the PUCCH, and the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH, including: the terminal device determines the DMRS used to demodulate the PUCCH according to the DMRS configuration; the terminal device transmits the non-periodic CSI on the PUCCH according to the DMRS.

[0015] In one possible implementation, the configuration information of the PUCCH includes quasi-co-site QCL indication information of the PUCCH, and the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH, including: the terminal device determines the transmit beam of the PUCCH according to the QCL indication information; and the terminal device uses the transmit beam to transmit the non-periodic CSI on the PUCCH.

[0016] In one possible implementation, the terminal device determines the transmission beam of the PUCCH based on the QCL indication information, including: the terminal device determines the uplink signal that is quasi-co-located with the PUCCH based on the QCL indication information; the terminal device determines the transmission beam of the uplink signal as the transmission beam of the PUCCH.

[0017] In a possible implementation, the method further includes: the terminal device determines, based on the indication information sent by the network device, that the uplink channel carrying the non-periodic CSI is the PUCCH.

[0018] In a possible implementation manner, the indication information is carried in the DCI.

[0019] In a possible implementation manner, the indication information is carried in a CSI reporting configuration corresponding to the aperiodic CSI.

[0020] In a possible implementation manner, the non-periodic CSI includes at least one of the following information: a resource index of a channel state information reference signal CSI-RS, a rank indicator RI, precoding information, and a channel quality indicator CQI.

[0021] In a possible implementation manner, the DCI is a DCI used for scheduling uplink transmission.

[0022] In a second aspect, a method for transmitting a physical uplink control channel PUCCH is provided, the method comprising: a network device sends downlink control information DCI to a terminal device, the DCI comprising trigger information of non-periodic channel state information CSI and configuration information of PUCCH carrying the non-periodic CSI, so that when the trigger information triggers the terminal device to report the non-periodic CSI, the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH.

[0023] In one possible implementation, the configuration information of the PUCCH includes at least one of the following information: resource configuration information of the PUCCH, transmit power control TPC command of the PUCCH, reference signal resource configuration of the PUCCH, quasi-co-site QCL indication information of the PUCCH and demodulation reference signal DMRS configuration of the PUCCH.

[0024] In a possible implementation, the method further includes: the network device sends indication information to the terminal device, where the indication information is used to indicate that the uplink channel carrying the non-periodic CSI is the PUCCH.

[0025] In a possible implementation manner, the indication information is carried in the DCI.

[0026] In a possible implementation manner, the indication information is carried in a CSI reporting configuration corresponding to the aperiodic CSI.

[0027] In a possible implementation manner, the non-periodic CSI includes at least one of the following information: a resource index of a channel state information reference signal CSI-RS, a rank indicator RI, precoding information, and a channel quality indicator CQI.

[0028] In a possible implementation manner, the DCI is a DCI used for scheduling uplink transmission.

[0029] In a third aspect, a terminal device is provided, which is used to execute the method in the first aspect or any possible implementation of the first aspect. Specifically, the terminal device includes a unit for executing the method in the first aspect or any possible implementation of the first aspect.

[0030] In a fourth aspect, a network device is provided, which is used to execute the method in any possible implementation of the second aspect or the first aspect. Specifically, the network device includes a unit for executing the method in any possible implementation of the second aspect or the second aspect.

[0031] In a fifth aspect, a terminal device is provided, the terminal device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected via a bus system. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory, so as to execute the method in the first aspect or any possible implementation of the first aspect.

[0032] In a sixth aspect, a network device is provided, the network device comprising: a memory, a processor, an input interface, and an output interface. The memory, the processor, the input interface, and the output interface are connected via a bus system. The memory is used to store instructions, and the processor is used to execute the instructions stored in the memory, so as to execute the method in the second aspect or any possible implementation of the second aspect.

[0033] In the seventh aspect, a computer storage medium is provided for storing computer software instructions used to execute the method in the above-mentioned first aspect or any possible implementation of the first aspect, or the above-mentioned second aspect or any possible implementation of the second aspect, which includes a program designed for executing the above-mentioned aspects.

[0034] In an eighth aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the method in the first aspect or any optional implementation of the first aspect, or the method in the second aspect or any optional implementation of the second aspect.

[0035] These and other aspects of the present application will become more clearly understood in the description of the following embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 A schematic diagram showing an application scenario of an embodiment of the present application.

[0037] Figure 2 A schematic block diagram of a method for transmitting PUCCH according to an embodiment of the present application is shown.

[0038] Figure 3 Another schematic block diagram of a method for transmitting PUCCH according to an embodiment of the present application is shown.

[0039] Figure 4 A schematic block diagram of a terminal device according to an embodiment of the present application is shown.

[0040] Figure 5 A schematic block diagram of a network device according to an embodiment of the present application is shown.

[0041] Figure 6 Another schematic block diagram of a terminal device according to an embodiment of the present application is shown.

[0042] Figure 7 Another schematic block diagram of a network device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0044] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolved (LTE) system, LTE Frequency Division Duplex (FDD) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Worldwide Interoperability for Microwave Access (WiMAX) communication system, New Radio (NR) or future 5G system, etc.

[0045] In particular, the technical solutions of the embodiments of the present application can be applied to various communication systems based on non-orthogonal multiple access technology, such as sparse code multiple access (SCMA) system, low density signature (LDS) system, etc. Of course, the SCMA system and the LDS system may also be called other names in the field of communication; further, the technical solutions of the embodiments of the present application can be applied to multi-carrier transmission systems using non-orthogonal multiple access technology, such as orthogonal frequency division multiplexing (OFDM), filter bank multi-carrier (FBMC), generalized frequency division multiplexing (GFDM), filtered orthogonal frequency division multiplexing (F-OFDM) system, etc.

[0046] The terminal device in the embodiments of the present application may refer to a user equipment (UE), an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved Public Land Mobile Network (PLMN), etc., and the embodiments of the present application are not limited.

[0047] The network device in the embodiment of the present application can be a device for communicating with a terminal device. The network device can be a base station (Base Transceiver Station, BTS) in GSM or CDMA, or a base station (NodeB, NB) in a WCDMA system, or an evolved base station (Evolutional NodeB, eNB or eNodeB) in an LTE system, or a wireless controller in a cloud radio access network (Cloud Radio Access Network, CRAN) scenario, or the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, a network device in a future 5G network, or a network device in a future evolved PLMN network, etc., and the embodiments of the present application are not limited.

[0048] Figure 1 It is a schematic diagram of an application scenario of an embodiment of the present application. Figure 1 The communication system in the embodiment may include a terminal device 10 and a network device 20. The network device 20 is used to provide communication services for the terminal device 10 and access the core network. The terminal device 10 accesses the network by searching for synchronization signals, broadcast signals, etc. sent by the network device 20, thereby communicating with the network. Figure 1 The arrows shown in may represent uplink / downlink transmissions performed via a cellular link between the terminal device 10 and the network device 20 .

[0049] From the network side, when a cell has downlink data to send, it is possible to require the terminal to send aperiodic channel state information (CSI) reporting. In the LTE system, aperiodic CSI is reported through the physical uplink shared channel (PUSCH); in the NR system, aperiodic CSI can be reported through PUSCH or physical uplink control channel (PUCCH). When PUCCH reporting is used, how the network side configures PUCCH is a problem that needs to be solved.

[0050] It should be understood that the terms "system" and "network" are often used interchangeably in this article. The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0051] Figure 2 FIG. 1 is a schematic block diagram of a method 100 for transmitting a PUCCH according to an embodiment of the present application. Figure 2 As shown, the method 100 includes some or all of the following contents:

[0052] S110, the terminal device receives downlink control information DCI sent by the network device, where the DCI includes CSI triggering information and configuration information of the PUCCH carrying the non-periodic CSI.

[0053] S120, when the trigger information triggers the terminal device to report the non-periodic CSI, the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH.

[0054] It should be noted that the trigger information in the embodiments of the present application can be not only a trigger for the terminal device to report the non-periodic CSI, but also a trigger for the reporting configuration of the corresponding CSI. For example, the network device can configure multiple reporting configurations for the CSI in advance, and the trigger information can be one of the multiple reporting configurations. The so-called reporting configuration can be various information of the network device for the reporting configuration of the non-periodic CSI. In other words, the trigger information can be used to notify the terminal device whether it is necessary to report the non-periodic CSI and / or how to report the non-periodic CSI when reporting is required. For example, the trigger information can be two bits in a certain downlink control information (Downlink Control Information, DCI), wherein one bit can be used to indicate whether the terminal device needs to report the non-periodic CSI, and the other bit can be used to indicate how to report the CSI. In addition, the DCI can also carry configuration information about the uplink channel carrying the non-periodic CSI. For example, the time-frequency resources of the uplink channel, etc. If the DCI carries the configuration information of PUCCH, it means that the network device instructs the terminal device to use PUCCH to transmit non-periodic CSI, and the terminal device can configure the PUCCH carrying the non-periodic CSI according to the configuration information; if the DCI carries the configuration information of PUSCH, it means that the network device instructs the terminal device to use PUSCH to transmit non-periodic CSI, and the terminal device can configure the PUSCH carrying CSI according to the configuration information.

[0055] Therefore, in the method for transmitting PUCCH in the embodiment of the present application, the network side can dynamically adjust the configuration information of the PUCCH carrying the non-periodic CSI reporting, which is beneficial to improving the transmission performance of the PUCCH.

[0056] It should be understood that the trigger information and configuration information are two independent information fields, and the trigger information and configuration information can also be one information field. For example, as long as the terminal device receives the configuration information of PUCCH carried in the DCI, it is assumed that PUCCH needs to be used for non-periodic CSI reporting. The embodiments of the present application do not limit this.

[0057] Optionally, the network device may also send an indication information to the terminal device, indicating the uplink channel carrying the non-periodic CSI. For example, the indication information may be a bit, and the network device may agree with the terminal device that if the bit is "0", it is PUCCH, and if the bit is "1", it is PUSCH. If the indication information indicates that PUCCH is used to carry the non-periodic CSI, the configuration information carried in the above DCI is used to configure PUCCH. If the indication information indicates that PUSCH is used to carry the non-periodic CSI, the configuration information carried in the above DCI is used to configure PUSCH. The indication information may be carried in the same DCI signaling as the trigger information of the non-periodic CSI, or the indication information may occupy the same information field as the trigger information; the indication information may also be carried in the reporting configuration of the non-periodic CSI. For example, the network device may correspond the uplink channel carrying the non-periodic CSI to the reporting configuration of the non-periodic CSI. In other words, each reporting configuration of the non-periodic CSI carries the indication information corresponding to a certain uplink channel. The reporting configuration of the non-periodic CSI may be notified in advance to the terminal device by the network device, for example, it may be semi-statically configured through Radio Resource Control (RRC) signaling.

[0058] Optionally, the DCI may be scheduling information, for example, information for scheduling uplink transmission, but the embodiments of the present application are not limited thereto.

[0059] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes at least one of the following information: resource configuration information of the PUCCH, a transmit power control TPC command of the PUCCH, a reference signal resource configuration corresponding to the PUCCH, quasi-co-site QCL indication information of the PUCCH, and a demodulation reference signal DMRS configuration of the PUCCH.

[0060] It should be understood that the configuration information carrying the aperiodic CSI includes but is not limited to the above-mentioned information. Any information that can be used to configure the PUCCH is within the protection scope of the technical solution of the present application.

[0061] The technical solutions of the embodiments of the present application will be described in detail below in combination with the various configuration information of the above examples.

[0062] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes resource configuration information of the PUCCH, and the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH, including: the terminal device determines the time-frequency resources occupied by the PUCCH and / or the PUCCH resources occupied by the PUCCH according to the resource configuration information of the PUCCH; the terminal device transmits the non-periodic CSI on the time-frequency resources and / or the PUCCH resources.

[0063] There are two terms that need to be explained here. The PUCCH time-frequency resource is a physical concept, while the PUCCH resource is a logical concept. There is a mapping relationship between the two. Usually, the so-called time-frequency resource can be any one of the bandwidth occupied by the PUCCH, the number of orthogonal frequency division multiplexing (OFDM) symbols occupied by the PUCCH, and the OFDM symbols occupied by the PUCCH. The time-frequency resource can also be the number of subcarriers occupied by the PUCCH, etc.

[0064] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes a transmit power control TPC command of the PUCCH, and the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH, including: the terminal device determines the transmit power of the PUCCH according to the TPC command; and the terminal device transmits the non-periodic CSI on the PUCCH using the transmit power.

[0065] Power control is a common method to improve communication quality. The basic principle of transmit power control is that the receiver can compare the signal-to-interference ratio of the received signal with the signal-to-interference ratio target value, and then return a transmit power control (Transmitted Power Control, TPC) command to the sender, and determine whether to increase or decrease the transmit power through the power control algorithm given by the high-level layer. Specifically, the terminal device can determine the closed-loop power adjustment value of the PUCCH according to the TPC command; then adjust the transmit power according to the closed-loop power adjustment value, and then transmit the non-periodic CSI on the PUCCH according to the adjusted transmit power. Generally, the so-called closed-loop power adjustment value can be in an accumulation mode (that is, the value indicated by the TPC command is accumulated on the basis of the existing closed-loop power adjustment value), or it can be in an absolute value mode (that is, the value indicated by the TPC command is directly used as the closed-loop power adjustment value).

[0066] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes a reference signal resource configuration of the PUCCH, and the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH, including: the terminal device determines the transmit beam of the PUCCH according to the reference signal resource configuration; and the terminal device uses the transmit beam to transmit the PUCCH.

[0067] Specifically, the terminal device may determine the transmit beam or receive beam used to transmit the reference signal on the reference signal resource indicated by the reference signal resource configuration as the transmit beam of the PUCCH. The reference signal resource configuration may be a resource used to indicate the transmission of an uplink reference signal, such as a sounding reference signal (SRS) resource; it may also be used to indicate a downlink reference signal resource, such as a channel state information reference signal (CSI-RS) resource or a synchronization signal block (SSB). Furthermore, whether the reference signal resource configuration indicates an uplink reference signal resource or a downlink reference signal resource may be determined based on whether the beam correspondence on the terminal side is available. If the beam correspondence on the terminal side is available, the reference signal resource configuration may indicate a downlink reference signal resource; if the beam correspondence on the terminal side is not available, the reference signal resource configuration may only indicate an uplink reference signal resource. The terminal device may report information on whether the beam correspondence is available to the network device in advance.

[0068] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes a demodulation reference signal DMRS configuration of the PUCCH, and the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH, including: the terminal device determines the DMRS used to demodulate the PUCCH according to the DMRS configuration; the terminal device transmits the non-periodic CSI on the PUCCH according to the DMRS.

[0069] Specifically, the demodulation reference signal (DMRS) configuration may indicate a sequence of the DMRS and / or resources occupied by the DMRS.

[0070] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes quasi-co-site QCL indication information of the PUCCH, and the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH, including: the terminal device determines the transmit beam of the PUCCH according to the QCL indication information; the terminal device uses the transmit beam to transmit the non-periodic CSI on the PUCCH.

[0071] Specifically, the terminal device can determine the uplink signal quasi-co-located with the PUCCH according to the quasi-co-location (QCL) indication information, and then further determine the transmission beam of the PUCCH according to the beam used to transmit the uplink signal. For example, the beam used to transmit the uplink signal can be directly used as the beam for transmitting the PUCCH. It should be understood that the uplink signal and the PUCCH can be quasi-co-located only for spatial reception parameters.

[0072] Optionally, in an embodiment of the present application, the non-periodic CSI includes at least one of the following information: a resource index of a channel state information reference signal CSI-RS, a rank indication (RI), precoding information, and a channel quality indication (Channel Quality Indicator, CQI).

[0073] Figure 3 FIG. 2 is a schematic block diagram of a method 200 for transmitting a PUCCH according to an embodiment of the present application. Figure 3 As shown, the method 200 includes part or all of the following contents:

[0074] S210, the network device sends downlink control information DCI to the terminal device, and the DCI includes trigger information of non-periodic channel state information CSI and configuration information of PUCCH carrying the non-periodic CSI, so that when the trigger information triggers the terminal device to report the non-periodic CSI, the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH.

[0075] Therefore, in the method for transmitting PUCCH in the embodiment of the present application, the network side can dynamically adjust the configuration information of the PUCCH carrying the non-periodic CSI reporting, which is beneficial to improving the transmission performance of the PUCCH.

[0076] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes at least one of the following information: resource configuration information of the PUCCH, transmit power control TPC command of the PUCCH, reference signal resource configuration of the PUCCH, quasi-co-site QCL indication information of the PUCCH and demodulation reference signal DMRS configuration of the PUCCH.

[0077] Optionally, in an embodiment of the present application, the method further includes: the network device sends indication information to the terminal device, where the indication information is used to indicate that the uplink channel carrying the non-periodic CSI is PUCCH.

[0078] Optionally, in an embodiment of the present application, the indication information is carried in the DCI.

[0079] Optionally, in an embodiment of the present application, the indication information is carried in a CSI reporting configuration corresponding to the non-periodic CSI.

[0080] Optionally, in an embodiment of the present application, the non-periodic CSI includes at least one of the following information: a resource index of a channel state information reference signal CSI-RS, a rank indication RI, precoding information, and a channel quality indication CQI.

[0081] Optionally, in an embodiment of the present application, the DCI is a DCI used to schedule uplink transmission.

[0082] It should be understood that the interaction between the network device and the terminal device and the related characteristics and functions described by the network device correspond to the related characteristics and functions of the terminal device. And the relevant content has been described in detail in the above method 100, so for the sake of brevity, it will not be repeated here.

[0083] It should also be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0084] The above describes in detail the method for transmitting PUCCH according to the embodiment of the present application. Figures 4 to 7 , describing a device for transmitting PUCCH according to an embodiment of the present application, and the technical features described in the method embodiment are applicable to the following device embodiments.

[0085] Figure 4 FIG. 3 is a schematic block diagram of a terminal device 300 according to an embodiment of the present application. Figure 4 As shown, the terminal device 300 includes:

[0086] The receiving unit 310 is configured to receive downlink control information DCI sent by a network device, where the DCI includes CSI triggering information and configuration information of a PUCCH carrying the aperiodic CSI;

[0087] The sending unit 320 is configured to transmit the aperiodic CSI on the PUCCH according to the configuration information of the PUCCH when the trigger information triggers the terminal device to report the aperiodic CSI.

[0088] Therefore, in the terminal device of the embodiment of the present application, the network side can dynamically adjust the configuration information of the PUCCH carrying the non-periodic CSI reporting, which is beneficial to improving the transmission performance of the PUCCH.

[0089] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes at least one of the following information: resource configuration information of the PUCCH, a transmit power control TPC command of the PUCCH, a reference signal resource configuration corresponding to the PUCCH, quasi-co-site QCL indication information of the PUCCH, and a demodulation reference signal DMRS configuration of the PUCCH.

[0090] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes resource configuration information of the PUCCH, and the terminal device also includes: a determination unit, used to determine the time-frequency resources occupied by the PUCCH and / or the PUCCH resources occupied by the PUCCH based on the resource configuration information of the PUCCH; the sending unit is specifically used to: transmit the non-periodic CSI on the time-frequency resources and / or the PUCCH resources.

[0091] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes a transmit power control TPC command of the PUCCH, and the terminal device also includes: a determination unit, used to determine the transmit power of the PUCCH according to the TPC command; the transmitting unit is specifically used to: use the transmit power to transmit the non-periodic CSI on the PUCCH.

[0092] Optionally, in an embodiment of the present application, the determination unit is specifically used to: determine a closed-loop power adjustment value of the PUCCH according to the TPC command; adjust the calculated transmit power according to the closed-loop power adjustment value; and determine the adjusted transmit power as the transmit power of the PUCCH.

[0093] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes a reference signal resource configuration of the PUCCH, and the terminal device further includes: a determination unit for determining a transmission beam of the PUCCH based on the reference signal resource configuration; the transmission unit is specifically used to: use the transmission beam to transmit the PUCCH.

[0094] Optionally, in an embodiment of the present application, the determination unit is specifically used to: determine the transmit beam or receive beam used to transmit the reference signal on the reference signal resource indicated by the reference signal resource configuration as the transmit beam of the PUCCH.

[0095] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes a demodulation reference signal DMRS configuration of the PUCCH, and the terminal device further includes: a determination unit for determining a DMRS for demodulating the PUCCH according to the DMRS configuration; the sending unit is specifically used to transmit the non-periodic CSI on the PUCCH according to the DMRS.

[0096] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes quasi-co-site QCL indication information of the PUCCH, and the terminal device also includes: a determination unit, used to determine the transmission beam of the PUCCH according to the QCL indication information; the transmission unit is specifically used to: use the transmission beam to transmit the non-periodic CSI on the PUCCH.

[0097] Optionally, in an embodiment of the present application, the determination unit is specifically used to: determine an uplink signal that is quasi-co-located with the PUCCH based on the QCL indication information; and determine the transmission beam of the uplink signal to be the transmission beam of the PUCCH.

[0098] Optionally, in an embodiment of the present application, the terminal device further includes: a determination unit, configured to determine, based on the indication information sent by the network device, that the uplink channel carrying the non-periodic CSI is the PUCCH.

[0099] Optionally, in an embodiment of the present application, the indication information is carried in the DCI.

[0100] Optionally, in an embodiment of the present application, the indication information is carried in a CSI reporting configuration corresponding to the non-periodic CSI.

[0101] Optionally, in an embodiment of the present application, the non-periodic CSI includes at least one of the following information: a resource index of a channel state information reference signal CSI-RS, a rank indication RI, precoding information, and a channel quality indication CQI.

[0102] Optionally, in an embodiment of the present application, the DCI is a DCI used to schedule uplink transmission.

[0103] It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the terminal device 300 are respectively to implement Figure 2 For the sake of brevity, the corresponding processes of the terminal device in the method are not repeated here.

[0104] Figure 5 FIG. 4 is a schematic block diagram of a network device 400 according to an embodiment of the present application. Figure 5 As shown, the network device 400 includes:

[0105] The sending unit 410 is used to send downlink control information DCI to the terminal device, where the DCI includes trigger information of non-periodic channel state information CSI and configuration information of PUCCH carrying the non-periodic CSI, so that when the trigger information triggers the terminal device to report the non-periodic CSI, the terminal device transmits the non-periodic CSI on the PUCCH according to the configuration information of the PUCCH.

[0106] Therefore, in the network device of the embodiment of the present application, the network side can dynamically adjust the configuration information of the PUCCH carrying the non-periodic CSI reporting, which is beneficial to improving the transmission performance of the PUCCH.

[0107] Optionally, in an embodiment of the present application, the configuration information of the PUCCH includes at least one of the following information: resource configuration information of the PUCCH, transmit power control TPC command of the PUCCH, reference signal resource configuration of the PUCCH, quasi-co-site QCL indication information of the PUCCH and demodulation reference signal DMRS configuration of the PUCCH.

[0108] Optionally, in the embodiment of the present application, the sending unit is further used for:

[0109] An indication message is sent to the terminal device, where the indication message is used to indicate that the uplink channel carrying the non-periodic CSI is the PUCCH.

[0110] Optionally, in an embodiment of the present application, the indication information is carried in the DCI.

[0111] Optionally, in an embodiment of the present application, the indication information is carried in a CSI reporting configuration corresponding to the non-periodic CSI.

[0112] Optionally, in an embodiment of the present application, the non-periodic CSI includes at least one of the following information: a resource index of a channel state information reference signal CSI-RS, a rank indication RI, precoding information, and a channel quality indication CQI.

[0113] Optionally, in an embodiment of the present application, the DCI is a DCI used to schedule uplink transmission.

[0114] It should be understood that the network device 400 according to the embodiment of the present application may correspond to the network device in the method embodiment of the present application, and the above and other operations and / or functions of each unit in the network device 400 are respectively to implement Figure 3 For the sake of brevity, the corresponding processes of the network devices in the method are not repeated here.

[0115] like Figure 6 As shown, the embodiment of the present application also provides a terminal device 500, which can be Figure 4The terminal device 300 in Figure 2 The terminal device 500 includes: an input interface 510, an output interface 520, a processor 530 and a memory 540, and the input interface 510, the output interface 520, the processor 530 and the memory 540 can be connected through a bus system. The memory 540 is used to store programs, instructions or codes. The processor 530 is used to execute the programs, instructions or codes in the memory 540 to control the input interface 510 to receive signals, control the output interface 520 to send signals, and complete the operations in the aforementioned method embodiment.

[0116] Therefore, in the terminal device of the embodiment of the present application, the network side can dynamically adjust the configuration information of the PUCCH carrying the non-periodic CSI reporting, which is beneficial to improving the transmission performance of the PUCCH.

[0117] It should be understood that in the embodiment of the present application, the processor 530 may be a central processing unit (CPU), and the processor 530 may also be other general-purpose processors, digital signal processors, application-specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0118] The memory 540 may include a read-only memory and a random access memory, and provide instructions and data to the processor 530. A portion of the memory 540 may also include a nonvolatile random access memory. For example, the memory 540 may also store information on the device type.

[0119] In the implementation process, the contents of the above method can be completed by the hardware integrated logic circuit in the processor 530 or the instructions in the form of software. The contents of the method disclosed in the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in the processor for execution. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 540, and the processor 530 reads the information in the memory 540 and completes the contents of the above method in combination with its hardware. To avoid repetition, it is not described in detail here.

[0120] In a specific implementation manner, the sending unit in the terminal device 300 may be composed of Figure 6 The output interface 520 in the terminal device 300 can be implemented by Figure 6The input interface 510 in the terminal device 300 can be implemented by Figure 6 The processor 530 in is implemented.

[0121] like Figure 7 As shown, the embodiment of the present application also provides a network device 600, which can be Figure 5 The network device 400 in Figure 3 The network device 600 includes: an input interface 610, an output interface 620, a processor 630 and a memory 640, and the input interface 610, the output interface 620, the processor 630 and the memory 640 can be connected through a bus system. The memory 640 is used to store programs, instructions or codes. The processor 630 is used to execute the programs, instructions or codes in the memory 640 to control the input interface 610 to receive signals, control the output interface 620 to send signals, and complete the operations in the aforementioned method embodiment.

[0122] Therefore, in the network device of the embodiment of the present application, the network side can dynamically adjust the configuration information of the PUCCH carrying the non-periodic CSI reporting, which is beneficial to improving the transmission performance of the PUCCH.

[0123] It should be understood that in the embodiment of the present application, the processor 630 may be a central processing unit (CPU), and the processor 630 may also be other general-purpose processors, digital signal processors, application-specific integrated circuits, off-the-shelf programmable gate arrays or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0124] The memory 640 may include a read-only memory and a random access memory, and provides instructions and data to the processor 630. A portion of the memory 640 may also include a nonvolatile random access memory. For example, the memory 640 may also store information on the device type.

[0125] In the implementation process, the contents of the above method can be completed by the hardware integrated logic circuit in the processor 630 or the instructions in the form of software. The contents of the method disclosed in the embodiment of the present application can be directly embodied as a hardware processor for execution, or a combination of hardware and software modules in the processor for execution. The software module can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 640, and the processor 630 reads the information in the memory 640 and completes the contents of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.

[0126] In a specific implementation manner, the sending unit in the network device 400 may be composed of Figure 7 The output interface 620 in is implemented.

[0127] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0128] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0129] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the unit is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0130] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0131] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0132] If this function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of each embodiment of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM), random access memory (RAM), disk or optical disk, etc., and other media that can store program codes.

[0133] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for transmitting a physical uplink control channel PUCCH, characterized in that: include: The terminal device receives downlink control information DCI sent by the network device, where the DCI includes CSI trigger information and configuration information of the PUCCH carrying the aperiodic CSI; In a case where the trigger information triggers the terminal device to report the aperiodic CSI, the terminal device transmits the aperiodic CSI on the PUCCH according to the configuration information of the PUCCH, The configuration information of the PUCCH includes quasi co-location QCL indication information of the PUCCH, and the terminal device transmits the aperiodic CSI on the PUCCH according to the configuration information of the PUCCH, including: The terminal device determines, according to the QCL indication information, an uplink signal quasi-co-located with the PUCCH; The terminal device determines the transmission beam of the uplink signal as the transmission beam of the PUCCH; The terminal device uses the transmit beam to transmit the non-periodic CSI on the PUCCH.

2. The method according to claim 1, characterized in that The configuration information of the PUCCH also includes at least one of the following information: resource configuration information of the PUCCH, a transmit power control TPC command of the PUCCH, a reference signal resource configuration corresponding to the PUCCH, and a demodulation reference signal DMRS configuration of the PUCCH.

3. The method according to claim 1 or 2, characterized in that: The configuration information of the PUCCH includes resource configuration information of the PUCCH, and the terminal device transmits the aperiodic CSI on the PUCCH according to the configuration information of the PUCCH, including: The terminal device determines, according to the resource configuration information of the PUCCH, the time-frequency resources occupied by the PUCCH and / or the PUCCH resources occupied by the PUCCH; The terminal device transmits the non-periodic CSI on the time-frequency resources and / or the PUCCH resources.

4. The method according to claim 1 or 2, characterized in that: The configuration information of the PUCCH includes a transmit power control TPC command of the PUCCH, and the terminal device transmits the aperiodic CSI on the PUCCH according to the configuration information of the PUCCH, including: The terminal device determines the transmit power of the PUCCH according to the TPC command; The terminal device transmits the non-periodic CSI on the PUCCH using the transmit power.

5. The method according to claim 4, characterized in that The terminal device determines, according to the TPC command, the transmit power of the PUCCH, including: The terminal device determines, according to the TPC command, a closed-loop power adjustment value of the PUCCH; The terminal device adjusts the calculated transmit power according to the closed-loop power adjustment value; The terminal device determines the adjusted transmit power as the transmit power of the PUCCH.

6. The method according to claim 1 or 2, characterized in that: The configuration information of the PUCCH includes a demodulation reference signal DMRS configuration of the PUCCH, and the terminal device transmits the aperiodic CSI on the PUCCH according to the configuration information of the PUCCH, including: The terminal device determines, according to the DMRS configuration, a DMRS for demodulating the PUCCH; The terminal device transmits the non-periodic CSI on the PUCCH according to the DMRS.

7. The method according to claim 1 or 2, characterized in that: The method further comprises: The terminal device determines that the uplink channel carrying the non-periodic CSI is PUCCH based on the indication information sent by the network device.

8. The method according to claim 7, characterized in that The indication information is carried in the DCI.

9. The method according to claim 7, characterized in that: The indication information is carried in the CSI reporting configuration corresponding to the aperiodic CSI.

10. The method according to claim 1 or 2, characterized in that: The non-periodic CSI includes at least one of the following information: a resource index of a channel state information reference signal CSI-RS, a rank indicator RI, precoding information, and a channel quality indicator CQI.

11. The method according to claim 1 or 2, characterized in that: The DCI is a DCI used for scheduling uplink transmission.

12. A method for transmitting a physical uplink control channel PUCCH, characterized in that: include: The network device sends downlink control information DCI to the terminal device, where the DCI includes trigger information of aperiodic channel state information CSI and configuration information of a PUCCH carrying the aperiodic CSI, so that when the trigger information triggers the terminal device to report the aperiodic CSI, the terminal device transmits the aperiodic CSI on the PUCCH according to the configuration information of the PUCCH, The configuration information of the PUCCH includes quasi-co-located QCL indication information of the PUCCH, and the QCL indication information is used by the terminal device to determine the uplink signal that is quasi-co-located with the PUCCH, determine the transmit beam of the uplink signal as the transmit beam of the PUCCH, and use the transmit beam to transmit the non-periodic CSI on the PUCCH.

13. The method according to claim 12, characterized in that The configuration information of the PUCCH further includes at least one of the following information: resource configuration information of the PUCCH, a transmit power control TPC command of the PUCCH, a reference signal resource configuration of the PUCCH, and a demodulation reference signal DMRS configuration of the PUCCH.

14. The method according to claim 12 or 13, characterized in that The method further comprises: The network device sends indication information to the terminal device, where the indication information is used to indicate that the uplink channel carrying the non-periodic CSI is the PUCCH.

15. The method according to claim 14, characterized in that The indication information is carried in the DCI.

16. The method according to claim 15, characterized in that The indication information is carried in the CSI reporting configuration corresponding to the aperiodic CSI.

17. The method according to claim 12 or 13, characterized in that The non-periodic CSI includes at least one of the following information: a resource index of a channel state information reference signal CSI-RS, a rank indicator RI, precoding information, and a channel quality indicator CQI.

18. The method according to claim 12 or 13, characterized in that: The DCI is a DCI used for scheduling uplink transmission.

19. A terminal device, characterized in that: The terminal device comprises: A receiving unit, configured to receive downlink control information DCI sent by a network device, wherein the DCI includes CSI trigger information and configuration information of a PUCCH carrying aperiodic CSI; a sending unit, configured to transmit the aperiodic CSI on the PUCCH according to the configuration information of the PUCCH when the trigger information triggers the terminal device to report the aperiodic CSI, The configuration information of the PUCCH includes quasi co-location QCL indication information of the PUCCH, and the terminal device further includes: a determining unit, configured to determine, according to the QCL indication information, an uplink signal quasi-co-located with the PUCCH, and determine a transmit beam of the uplink signal as a transmit beam of the PUCCH; The sending unit is specifically used for: The non-periodic CSI is transmitted on the PUCCH using the transmit beam.

20. The terminal device according to claim 19, characterized in that: The configuration information of the PUCCH also includes at least one of the following information: resource configuration information of the PUCCH, a transmit power control TPC command of the PUCCH, a reference signal resource configuration corresponding to the PUCCH, and a demodulation reference signal DMRS configuration of the PUCCH.

21. The terminal device according to claim 19 or 20, characterized in that: The configuration information of the PUCCH includes resource configuration information of the PUCCH, and the terminal device further includes: a determining unit, configured to determine, according to the resource configuration information of the PUCCH, the time-frequency resources occupied by the PUCCH and / or the PUCCH resources occupied by the PUCCH; The sending unit is specifically used for: The aperiodic CSI is transmitted on the time-frequency resources and / or the PUCCH resources.

22. The terminal device according to claim 19 or 20, characterized in that: The configuration information of the PUCCH includes a transmit power control TPC command of the PUCCH, and the terminal device further includes: A determining unit, configured to determine the transmit power of the PUCCH according to the TPC command; The sending unit is specifically used for: The aperiodic CSI is transmitted on the PUCCH using the transmit power.

23. The terminal device according to claim 22, characterized in that: Determine the unit specifically for: Determining a closed-loop power adjustment value of the PUCCH according to the TPC command; adjusting the calculated transmit power according to the closed-loop power adjustment value; The adjusted transmit power is determined as the transmit power of the PUCCH.

24. The terminal device according to claim 19 or 20, characterized in that: The configuration information of the PUCCH includes a demodulation reference signal DMRS configuration of the PUCCH, and the terminal device further includes: A determining unit, configured to determine a DMRS for demodulating the PUCCH according to the DMRS configuration; The sending unit is specifically used for: The aperiodic CSI is transmitted on the PUCCH according to the DMRS.

25. The terminal device according to claim 19 or 20, characterized in that: The terminal device further includes: A determining unit is used to determine that the uplink channel carrying the non-periodic CSI is the PUCCH according to the indication information sent by the network device.

26. The terminal device according to claim 25, characterized in that: The indication information is carried in the DCI.

27. The terminal device according to claim 25, characterized in that: The indication information is carried in the CSI reporting configuration corresponding to the aperiodic CSI.

28. The terminal device according to claim 19 or 20, characterized in that: The non-periodic CSI includes at least one of the following information: a resource index of a channel state information reference signal CSI-RS, a rank indicator RI, precoding information, and a channel quality indicator CQI.

29. The terminal device according to claim 19 or 20, characterized in that: The DCI is a DCI used for scheduling uplink transmission.

30. A network device, characterized in that: The network equipment includes: a sending unit, configured to send downlink control information DCI to a terminal device, wherein the DCI includes trigger information of aperiodic channel state information CSI and configuration information of a PUCCH carrying the aperiodic CSI, so that when the trigger information triggers the terminal device to report the aperiodic CSI, the terminal device transmits the aperiodic CSI on the PUCCH according to the configuration information of the PUCCH, The configuration information of the PUCCH includes quasi-co-located QCL indication information of the PUCCH, and the QCL indication information is used by the terminal device to determine the uplink signal that is quasi-co-located with the PUCCH, determine the transmit beam of the uplink signal as the transmit beam of the PUCCH, and use the transmit beam to transmit the non-periodic CSI on the PUCCH.

31. The network device according to claim 30, characterized in that: The configuration information of the PUCCH further includes at least one of the following information: resource configuration information of the PUCCH, a transmit power control TPC command of the PUCCH, a reference signal resource configuration of the PUCCH, and a demodulation reference signal DMRS configuration of the PUCCH.

32. The network device according to claim 30 or 31, characterized in that: The sending unit is also used for: Send indication information to the terminal device, where the indication information is used to indicate that the uplink channel carrying the non-periodic CSI is the PUCCH.

33. The network device according to claim 32, characterized in that: The indication information is carried in the DCI.

34. The network device according to claim 32, characterized in that: The indication information is carried in the CSI reporting configuration corresponding to the aperiodic CSI.

35. The network device according to claim 30 or 31, characterized in that: The non-periodic CSI includes at least one of the following information: a resource index of a channel state information reference signal CSI-RS, a rank indicator RI, precoding information, and a channel quality indicator CQI.

36. The network device according to claim 30 or 31, characterized in that: The DCI is a DCI used for scheduling uplink transmission.

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