Transmission indication method and apparatus

Abstract

The application provides a transmission indication method and device. The transmission indication method applied to a terminal comprises the following steps: receiving control signaling sent by a base station; indicating uplink transmission control parameters of an uplink reference signal through the control signaling; and transmitting the uplink reference signal based on the uplink transmission control parameters.

Description

[0001] This application is a divisional application of the Chinese patent application with application number "201910253399.7", application date "March 29, 2019", and title "Transmission Indication Method and Device". Technical Field

[0002] The present application relates to the field of communications, for example, to a transmission indication method and device. Background Art

[0003] Ultra-wide bandwidth high-frequency bands (i.e., millimeter wave communications) have become an important direction for the development of mobile communications, attracting the attention of academia and industry worldwide. In particular, with the increasingly congested spectrum resources and the large-scale access to physical networks, the advantages of millimeter waves are becoming increasingly attractive. Many standards organizations, such as the Institute of Electrical and Electronics Engineers (IEEE) and the 3rd Generation Partnership Project (3GPP), have begun to carry out corresponding standardization work. For example, in the 3GPP standards group, high-frequency band communications, with their significant advantages in large bandwidth, will become a key innovation point of the new radio access technology (New RAT) of the fifth generation mobile communication technology (5G).

[0004] During antenna weight (also known as precoding or beamforming) training, the high-band transmitter sends training pilots, and the receiver receives the channel and performs channel estimation. The high-band receiver then feeds back channel state information to the high-band transmitter, enabling the transmitter and receiver to select the appropriate antenna weight pairs for multi-path data transmission from among the available available pairs, thereby improving overall spectral efficiency.

[0005] In 5G communication systems, the flexibility of beam configuration for uplink data channels and uplink reference signals needs to be higher than the flexibility of power control parameter configuration for data channels and reference signals. This results in the inability to update the power control parameters for uplink data signals and uplink reference signals in real systems, leading to increased uplink interference.

[0006] The above technical problem has not been solved in the related art by providing a solution that supports synchronous updating of uplink transmission control parameters, ie, beam configuration parameters and power control parameters of uplink transmission signals. Summary of the Invention

[0007] The application provides a transmission indication method and device, which can synchronously update uplink transmission control parameters.

[0008] Embodiments of the application provide a transmission indication method applied to a terminal, which comprises:

[0009] receiving control signaling sent by a base station;

[0010] indicating, through the control signaling, uplink transmission control parameters of an uplink reference signal;

[0011] transmitting the uplink reference signal based on the uplink transmission control parameters.

[0012] Embodiments of the application provide a transmission indication method applied to a base station, which comprises:

[0013] sending control signaling to a terminal, the control signaling being used for indicating uplink transmission control parameters of an uplink reference signal;

[0014] receiving the uplink reference signal sent by the terminal;

[0015] processing the uplink reference signal.

[0016] Embodiments of the application provide a transmission indication device, which comprises:

[0017] a receiving module, configured to receive control signaling sent by a base station;

[0018] a sending module, configured to transmit an uplink reference signal based on uplink transmission control parameters;

[0019] at least one processor, configured to indicate, through the control signaling, uplink transmission control parameters of an uplink reference signal.

[0020] Embodiments of the application provide a transmission indication device, which comprises:

[0021] a sending module, configured to send control signaling to a terminal, the control signaling being used for indicating uplink transmission control parameters of an uplink reference signal;

[0022] a receiving module, configured to receive the uplink reference signal sent by the terminal;

[0023] at least one processor, configured to process the uplink reference signal.

[0024] Embodiments of the application provide a terminal, which comprises a transmission indication device provided by embodiments of the application and comprising a receiving module, the receiving module being configured to receive control signaling sent by a base station.

[0025] The embodiment of the present application provides a base station, comprising a transmission indication device provided by the embodiment of the present application and comprising a sending module, the sending module is arranged to send control signaling to a terminal, and the control signaling is used to indicate uplink transmission control parameters of an uplink reference signal.

[0026] The embodiment of the present application provides a storage medium, the storage medium stores a computer program, and the computer program is executed by a processor to realize any one of the methods in the embodiment of the present application.

[0027] More details about the above embodiments and other aspects of the present application and implementation manners thereof are provided in the description of drawings, specific embodiments and claims. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 A schematic diagram of a hybrid precoding transceiver structure related to the present application;

[0029] Figure 2 A schematic diagram of a transmission indication method provided by the present application;

[0030] Figure 3 A schematic diagram of power control parameter configuration of an SRS resource set through control signaling in the present application;

[0031] Figure 4 A schematic diagram of information of SRS spatial relationship parameter configuration through control signaling in the present application;

[0032] Figure 5 A schematic diagram of a transmission indication method provided by the present application;

[0033] Figure 6 A schematic diagram of a transmission indication device provided by the present application;

[0034] Figure 7 A schematic diagram of another transmission indication device provided by the present application. DETAILED DESCRIPTION

[0035] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0036] Figure 1 A schematic diagram of a hybrid precoding transceiver structure related to the present application. The hybrid precoding transceiver can also be called a hybrid analog-digital beamforming transceiver. Referring to Figure 1In the embodiment, the transmitting end can be considered as a terminal, and the receiving end can be considered as a base station. Each radio frequency link is connected with an antenna array unit (not excluding a partial connection scenario), and each antenna unit has a digital key-controlled phase shifter. By loading different phase shift amounts on signals on multiple antenna units, a high-frequency system can realize analog beamforming. In an embodiment, in a hybrid analog-digital beamforming transceiver, there are multiple radio frequency signal streams. Each signal stream is loaded with a precoding antenna weight vector (AWV) by a digital key-controlled phase shifter, and is transmitted from the multiple antenna units to a high-frequency physical propagation channel; at the receiving end, the radio frequency signal streams received by the multiple antenna units are combined into a single signal stream, and after receiving end radio frequency demodulation, the receiver finally obtains multiple receiving signal streams, which are sampled and received by a digital baseband.

[0037] A beam can be a resource (for example, a transmitting end spatial filter, a receiving end spatial filter, a transmitting end precoding, a receiving end precoding, an antenna port, an antenna weight vector, an antenna weight matrix, etc.), and a beam serial number can be replaced by a resource index (for example, a reference signal resource index), because a beam can be bound to some time-frequency code resources in transmission. A beam can also be a transmission (transmission / reception) mode; the transmission mode can include space division multiplexing, frequency domain / time domain diversity, etc.

[0038] In addition, the base station, that is, the base station, can be configured for quasi co-location of two reference signals, and can inform the user end, that is, the terminal, to describe the channel characteristic assumption. The quasi co-location involves at least the following parameters: Doppler spread, Doppler shift, delay spread, average delay, average gain, and spatial parameters. In the embodiment, the spatial parameters can include spatial reception parameters, such as an angle of arrival, a spatial correlation of a receiving beam, an average delay, and a correlation of a time-frequency channel response (including phase information). The reference signal at least includes one of the following.

[0039] 1) Channel State Information Reference Signal (CSI-RS).

[0040] 2) Channel State Information Interference Measurement Signal (CSI-IM).

[0041] 3) Demodulation Reference Signal (DMRS).

[0042] 4) Downlink demodulation reference signal (DL DMRS).

[0043] 5) Uplink demodulation reference signal (UL DMRS).

[0044] 6) Sounding Reference Signal (SRS).

[0045] 7) Phase-tracking reference signals (PTRS).

[0046] 8) Random Access Channel (RACH).

[0047] 9) Synchronization Signal (SS).

[0048] 10) Synchronization Signal block (SS block).

[0049] 11) Primary Synchronization Signal (PSS).

[0050] 12) Secondary Synchronization Signal (SSS).

[0051] The embodiment is provided to solve the technical problem that the uplink transmission control parameters, i.e., the beam configuration parameters and the power control parameters of the uplink reference signal, cannot be updated synchronously, and provides a transmission indication method.

[0052] Figure 2 A flowchart of a transmission indication method provided by the present application is shown. The method can be applied to the case where the uplink transmission control parameters of the uplink reference signal are configured when the uplink reference signal is transmitted. The method can be executed by a transmission indication device including a receiving module in the present application. The receiving module is configured to receive the control signaling sent by the base station. The device can be realized by software and / or hardware and integrated on a terminal. The terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing apparatus, a portable web browser or a vehicle-mounted mobile station.

[0053] As Figure 2As shown, the application provides a transmission indication method applied to a terminal, including the following steps.

[0054] S1010, receiving control signaling transmitted by the base station.

[0055] When the terminal performs transmission indication, the terminal can first receive the control signaling transmitted by the base station, and perform transmission configuration based on the received control signaling, such as configuring the uplink reference signal.

[0056] In this step, the terminal can receive data transmitted by the base station in real time, and analyze the received data to extract the control signaling for transmission indication. In this embodiment, the control signaling can be understood as signaling for configuring the uplink reference signal transmission mode. The control signaling can be used to indicate the uplink transmission control parameter.

[0057] S1020, indicating the uplink transmission control parameter of the uplink reference signal through the control signaling.

[0058] The uplink reference signal can be understood as a reference signal transmitted by the terminal to the base station, and the specific content of the reference signal is not limited here. In an embodiment, the uplink reference signal transmitted by the terminal to the base station can be determined by the control signaling received by the terminal. The control signaling can carry an index of the uplink reference signal that needs to be transmitted by the terminal to the base station, and the index can be used to identify the uplink reference signal that needs to be transmitted. The uplink reference signal can include a sounding reference signal (SRS), a phase tracking reference signal (PTRS), a physical random access channel (PRACH), and an uplink demodulation reference signal (UL DMRS), etc.

[0059] After receiving the control signaling, the terminal can indicate the uplink transmission control parameter of the uplink reference signal based on the control signaling, so that the uplink transmission signal is transmitted based on the indicated uplink transmission control parameter.

[0060] In this embodiment, the uplink transmission control parameter can be understood as a control parameter during uplink reference signal transmission. The specific content of the uplink transmission control parameter can not be limited, and the uplink transmission control parameter can include the control parameter required for uplink transmission signal transmission.

[0061] In an embodiment, the uplink transmission control parameter can include a beam configuration parameter and a power control parameter. In an embodiment, the beam configuration parameter can be understood as a spatial relationship parameter. The power control parameter can be understood as a power control parameter.

[0062] In an embodiment, the power control parameter includes at least one or a combination of the following.

[0063] 1. Open loop power control parameter. In an embodiment, the open loop power control parameter can be composed of path loss adjustment coefficient alpha and / or target power p0. The size of the power can be changed by changing the size of alpha.

[0064] 2. Reference signal of path loss (PL).

[0065] 3. Closed loop power control index.

[0066] In an embodiment, in the case that the uplink transmission control parameter of the uplink reference signal is indicated based on the control signaling, the indication strategy can be determined based on the content included in the uplink transmission control parameter.

[0067] For example, in the case that the uplink transmission control parameter includes the power control parameter, the control signaling can determine the corresponding power control parameter based on the resource set of the uplink reference signal. In an embodiment, the resource set of the uplink reference signal can be configured by the radio resource control (RRC) signaling, which can be sent by the base station; in the case that the triggered uplink reference signal is the aperiodic uplink reference signal, the corresponding power control parameter can be determined by the downlink control information (DCI), the physical downlink control channel (PDCCH), the power control parameter of the starting transmission time of the uplink reference signal resource set associated with the uplink reference signal; in the case that the uplink transmission control parameter includes the spatial relation parameter, the control signaling can determine the spatial relation parameter based on the DCI, the transmission time of the downlink control channel, the transmission time of the uplink reference signal, the spatial relation parameter at the starting transmission time of the uplink reference signal resource set associated with the uplink reference signal trigger state, and / or the spatial relation parameter at the starting transmission time of at least one uplink reference signal resource set associated with the uplink reference signal, or can be selected from the spatial relation set.

[0068] S1030, transmitting the uplink reference signal based on the uplink transmission control parameter.

[0069] After the uplink transmission control parameter is indicated by the control signaling, the uplink reference signal can be transmitted based on the indicated uplink transmission control parameter, so that the uplink transmission control parameter can be updated synchronously when the uplink reference signal is transmitted.

[0070] The transmission indication method provided in the embodiment is based on control signaling received from a base station to indicate uplink transmission control parameters of an uplink reference signal, and then transmit the uplink reference signal based on the uplink transmission control parameters. The technical problem of being unable to synchronously update the uplink transmission control parameters is solved, and synchronous update of the uplink transmission control parameters is realized.

[0071] The terminal in the embodiment can be a user terminal, and is configured to update channel characteristics of an {aperiodic (AP) / semi-persistent (SP)}-SRS and determine power control parameters of SRS / physical uplink shared channels (PUSCH). The transmission indication method in the embodiment can be considered as a method of configuring data channel and reference signal transmission. The reference signal can assist data signal transmission.

[0072] On the basis of the above-described embodiments, variant embodiments of the above-described embodiments are provided, and it should be noted that, for the sake of brevity of description, only differences from the above-described embodiments are described in the variant embodiments.

[0073] In an embodiment of the present application, the control signaling includes media access control-control element (MAC-CE) signaling.

[0074] The MAC-CE signaling can be understood as signaling in media access control (MAC) that can indicate the uplink transmission control parameters of the uplink reference signal. After the terminal receives the MAC-CE signaling sent by the base station, the uplink transmission control parameters of the uplink reference signal are indicated based on the MAC-CE signaling. The MAC-CE signaling can configure the uplink transmission control parameters, and ensure synchronous update of the uplink transmission control parameters. For example, the MAC-CE signaling can configure power control parameters and spatial relation parameters in the uplink transmission control parameters, to ensure synchronous update of the power control parameters and the spatial relation parameters.

[0075] In an embodiment of the present application, the uplink reference signal includes channel sounding reference signals (SRS), phase tracking reference signals (PTRS), and physical random access channels (PRACH).

[0076] In an embodiment of the present application, the effective time of the control signaling indication is determined by the transmission time of the HARQ-ACK associated with the PDSCH carrying the control signaling.

[0077] The present application can determine the effective time of the control signaling configuration uplink transmission control parameter according to the transmission time of the HARQ-ACK associated with the PDSCH carrying the uplink reference signal, and the specific configuration means can be determined according to the actual scene of transmitting the uplink reference signal.

[0078] In an embodiment of the present application, the uplink transmission control parameter includes a power control parameter. Based on the power control parameter, the power of transmitting the uplink reference signal can be set.

[0079] In an embodiment of the present application, the uplink transmission control parameter of the uplink reference signal is indicated by the control signaling, including at least one of the following: the control signaling associates an open loop power control parameter in the power control parameter with the resource set of the uplink reference signal; or the control signaling associates an element index in the open loop power control parameter set in the power control parameter with the resource set of the uplink reference signal; the control signaling associates a path loss reference signal in the power control parameter with the resource set of the uplink reference signal; or the control signaling associates an element index in the path loss reference signal set in the power control parameter with the resource set of the uplink reference signal; the control signaling associates a closed loop power control index in the power control parameter with the resource set of the uplink reference signal.

[0080] In an embodiment, the condition of indicating the uplink transmission control parameter according to the resource set of the uplink reference signal can be that the purpose of the uplink reference signal is beam management, codebook mode, non-codebook mode, antenna switching or positioning.

[0081] When the uplink transmission control parameter of the uplink reference signal is indicated by the control instruction, the uplink transmission control parameter can be determined based on the resource set of the uplink reference signal.

[0082] In an embodiment, when the power control parameter in the uplink transmission control parameter is determined, at least one of the following can be configured: an open loop power control parameter, a path loss reference signal and a closed loop power control index.

[0083] When the open loop power control parameter in the power control parameter is configured, the open loop power control parameter can be directly configured, or an element index in the open loop power control parameter set can be configured.

[0084] In one embodiment, the control signaling may be MAC-CE signaling, and the uplink reference signal may be SRS. The uplink transmission control parameter indicating the uplink reference signal through the control signaling may include at least one of the following: MAC-CE signaling, specifying an open-loop power control parameter, associated with the resource set of the SRS; or the MAC-CE signaling, specifying an element index in an open-loop power control parameter set, associated with the resource set of the SRS. The MAC-CE signaling, specifying a reference signal of the path loss PL, associated with the SRS resource set of the SRS; or the MAC-CE signaling, specifying an element index in a reference signal set of the path loss PL, associated with the resource set of the SRS. MAC-CE signaling, specifying a closed-loop power control index of the physical uplink shared channel PUSCH or a closed-loop power control index under the SRS, associated with the SRS resource set.

[0085] For example, Figure 3 This is a schematic diagram of power control parameters for configuring SRS resource sets through control signaling in this application; Figure 3 As shown, RRC signaling can configure or reconfigure a path loss PL reference signal (RS) resource pool and an open-loop power control parameter pool. In one embodiment, the parameters of each resource pool are renumbered. Then, through control signaling, such as MAC-CE signaling, the power control parameters are configured for an SRS resource set, the power control parameters of the SRS resource set are configured, and the power control parameters associated with the SRS resource set include PL RS, open-loop parameters, and closed-loop index values. Configuring the power control parameters of the SRS resource set may include: selecting a corresponding PL RS from the PL RS resource pool, for example Figure 3 Select PL-ID3 in the open loop power control parameter pool; select the corresponding open loop power control parameter, for example Figure 3 OL-ID1 selected in; and, indicates the closed-loop power control index.

[0086] Table 1 is a schematic diagram of the signaling format for configuring SRS power control parameters in this application;

[0087] Table 1 Schematic diagram of the signaling format for configuring SRS power control parameters in this application

[0088]

[0089] See Table 1, different from Figure 3 Table 1 provides a signaling method for directly configuring SRS power control parameters, that is, explicitly configuring the required open-loop power control parameters (which may include P0 and alpha), reference signal index, and closed-loop power control index for a specified SRS resource set.

[0090] In an embodiment of the present application, the uplink transmission control parameter of the uplink reference signal is indicated by the control signaling, including at least one of the following: an open loop power control parameter in the power control parameter is associated with the uplink reference signal resource in the resource set of the uplink reference signal by the control signaling; or an element index in the open loop power control parameter set in the power control parameter is associated with the uplink reference signal resource in the resource set of the uplink reference signal by the control signaling; a reference signal of path loss in the power control parameter is associated with the uplink reference signal resource in the resource set of the uplink reference signal by the control signaling; or an element index in the reference signal set of path loss in the power control parameter is associated with the uplink reference signal resource in the resource set of the uplink reference signal by the control signaling; a closed loop power control index in the power control parameter is associated with the uplink reference signal resource in the resource set of the uplink reference signal by the control signaling.

[0091] In an embodiment, the condition of indicating the uplink transmission control parameter according to the uplink reference signal resource in the resource set of the uplink reference signal can be that the purpose of the uplink reference signal is non-codebook mode, antenna switching, or positioning.

[0092] When the control signaling indicates the uplink transmission control parameter, the power control parameter can be determined based on the uplink reference signal resource in the resource set of the uplink reference signal.

[0093] Taking the control signaling as MAC-CE signaling and the uplink reference signal as SRS as an example, indicating the uplink transmission control parameter of the uplink reference signal by the control signaling can include at least one of the following: the MAC-CE signaling specifies an open loop power control parameter associated with the SRS resource that needs to transmit SRS; or the MAC-CE signaling specifies an element index in the open loop power control parameter set associated with the SRS resource that needs to transmit SRS. The MAC-CE signaling specifies a reference signal of path loss PL associated with the SRS resource that needs to transmit SRS; or the MAC-CE signaling specifies an element index in the reference signal set of path loss PL associated with the SRS resource that needs to transmit SRS. The MAC-CE signaling specifies a closed loop power control index of PUSCH or a closed loop power control index of SRS associated with the SRS resource that needs to transmit SRS.

[0094] For example, Table 2 is another schematic table of the signaling format of the control signaling for configuring the SRS power control parameter in the present application;

[0095] Table 2 is another schematic table of the signaling format of the control signaling for configuring the SRS power control parameter in the present application

[0096]

[0097] As shown in Table 2, in the case of non-codebook transmission mode or antenna switching, the MAC-CE signaling specifies a set of SRS resources to be configured, and corresponding power control parameters (including P0 / alpha), reference signal index and closed loop power control index are configured for each SRS resource in the set.

[0098] In one embodiment of the present application, after the uplink transmission control parameters of the uplink reference signal are indicated by the control instruction, at least one or a combination of the following can be included: in the case of triggering aperiodic uplink reference signal by the control instruction, determining the power control parameters of the triggered aperiodic uplink reference signal according to the power control parameters at the transmission time of the downlink control information (DCI) or the downlink control channel of the triggered aperiodic uplink reference signal; in the case of triggering aperiodic uplink reference signal by the control instruction, determining the power control parameters of the triggered aperiodic uplink reference signal according to the power control parameters at the transmission time of the triggered aperiodic uplink reference signal; in the case of triggering aperiodic uplink reference signal by the control instruction, determining the power control parameters of the triggered aperiodic uplink reference signal according to the power control parameters at the starting transmission time of the uplink reference signal resource set associated with the trigger state of the triggered aperiodic uplink reference signal; in the case of triggering aperiodic uplink reference signal by the control instruction, determining the power control parameters of the triggered aperiodic uplink reference signal according to the power control parameters at the starting transmission time of at least one uplink reference signal resource set associated with the triggered aperiodic uplink reference signal.

[0099] In one embodiment, at least one uplink reference signal resource set associated with the uplink reference signal can be used for antenna switching.

[0100] In the configuration of the uplink transmission control parameters, if the triggered is aperiodic uplink reference signal, the uplink transmission control parameters can be determined by the power control parameters at the transmission time of the DCI or the PDCCH triggering the SRS, the power control parameters at the transmission time of the triggered SRS, the power control parameters at the starting transmission time of the SRS resource set associated with the trigger state of the triggered SRS, and / or the power control parameters at the starting transmission time of at least one SRS resource set associated with the triggered SRS. The specific determination means can be set according to the actual situation. In one embodiment, at least one SRS resource set associated with the triggered SRS is used for antenna switching.

[0101] In one embodiment of the present application, the uplink transmission control parameters can include spatial relationship parameters.

[0102] After the uplink transmission control parameter includes the spatial relation parameter, the beam configuration parameter of the uplink reference signal can be set. In the case where the uplink transmission control parameter includes the spatial relation parameter and the power control parameter, when the uplink reference signal is transmitted based on the uplink transmission control parameter indicated by the control instruction, the power control parameter and the spatial relation parameter of the uplink reference signal can be updated synchronously.

[0103] In an embodiment of the present application, the uplink transmission control parameter of the uplink reference signal is indicated by the control signaling, including: activating or deactivating the uplink reference signal, or configuring the spatial relation parameter of the uplink reference signal, wherein the uplink reference signal is a semi-persistent uplink reference signal.

[0104] The semi-persistent uplink reference signal can be activated or deactivated by the control signaling, and the spatial relation parameter of the corresponding uplink reference signal can be configured by the control signaling.

[0105] In an embodiment of the present application, the uplink transmission control parameter of the uplink reference signal is indicated by the control signaling, including: configuring the spatial relation parameter of the uplink reference signal by the control signaling, wherein the uplink reference signal is an aperiodic uplink reference signal.

[0106] The trigger of the aperiodic uplink reference signal can be triggered by the DCI, and the spatial relation parameter of the aperiodic uplink reference signal can be configured by the control signaling.

[0107] In an embodiment of the present application, in the case where the reference signal associated with the spatial relation parameter is a downlink reference signal, the control signaling includes a group index.

[0108] In the case where the reference signal associated with the spatial relation parameter is a path loss reference signal, the control signaling can include a group index.

[0109] In an embodiment of the present application, in the case where the use of the uplink reference signal is beam management or antenna switching, the control signaling includes a group index.

[0110] The group index can be a resource set index, an antenna panel index, a sub-antenna panel index, an antenna port group index, a beam group index, a transmission unit, or a receiving unit, etc. Further, the group index can be used to describe the antenna panel and the characteristics associated with the antenna panel, and the specific characteristics are not limited. The group index can also be referred to as a group state.

[0111] In an embodiment of the present application, the spatial relation parameter is selected from a spatial relation parameter set, wherein the spatial relation parameter set is configured by radio resource control (RRC) signaling.

[0112] In an embodiment, the grouping index can be used to determine whether the reference signals or channels associated with the grouping index can be transmitted simultaneously, or to determine whether the reference signals or channels associated with the grouping index can be received simultaneously.

[0113] In an embodiment, the grouping index can be used to determine the requirement of scheduling delay for the reference signals or channels associated with the grouping index.

[0114] In an embodiment, the grouping index can be used to determine whether the large scale parameters of the reference signals or channels associated with the grouping index are the same or similar. In an embodiment, the large scale parameters include path loss, coupling loss, timing advance, Doppler shift, etc.

[0115] In an embodiment of the present application, the uplink transmission control parameter of the uplink reference signal is indicated by the control signaling, including at least one or a combination of the following: in the case of triggering aperiodic uplink reference signal by control instruction, determining the spatial relation parameter associated with the triggered uplink reference signal according to the spatial relation parameter of the downlink control information DCI or the transmission time of the downlink control channel PDCCH of the triggered uplink reference signal; in the case of triggering aperiodic uplink reference signal by control instruction, determining the spatial relation parameter associated with the triggered uplink reference signal according to the spatial relation parameter at the transmission time of the triggered uplink reference signal; in the case of triggering aperiodic uplink reference signal by control instruction, determining the spatial relation parameter associated with the triggered uplink reference signal according to the spatial relation parameter at the starting transmission time of the uplink reference signal resource set associated with the trigger state of the triggered uplink reference signal; in the case of triggering aperiodic uplink reference signal by control instruction, determining the spatial relation parameter associated with the triggered uplink reference signal according to the spatial relation parameter at the starting transmission time of at least one uplink reference signal resource set associated with the triggered uplink reference signal.

[0116] In an embodiment, the at least one uplink reference signal resource set associated with the uplink reference signal is used for antenna switching.

[0117] Figure 4 The information diagram for configuring SRS spatial relation parameters by control signaling in the present application is shown. Referring to Figure 4 , for aperiodic SRS resource, a spatial relation state set (in high layer signaling SRS config), Ld non-periodic SRS resource sets, and Lt SRS trigger states can be configured by RRC signaling, where each trigger state can be associated with at most Ld non-periodic SRS resource sets. Ld and Lt can be positive integers, and the specific values can be set according to the actual situation.

[0118] By MAC-CE signaling, for each SRS resource in a set of aperiodic SRS resources, an alternative spatial relation state is associated, which is configured by the RRC layer signaling described above. In an embodiment, the MAC-CE signaling is used to configure the power control parameters for the set of aperiodic SRS resources, or the power control parameters are configured for the SRI code word. From the perspective of the user, the effective time of the MAC-CE signaling is determined by the transmission time of the HARQ-ACK associated with the PDSCH carrying the MAC-CE.

[0119] By DCI signaling, an SRS trigger state is triggered, and X sets of aperiodic SRS resources are transmitted. X can be a positive integer, and the specific value is not limited.

[0120] In an embodiment, the spatial relation information (and the corresponding power control parameters) associated with the set of aperiodic SRS resources is determined according to the spatial relation information at the time of the DCI signaling or the time of transmitting the SRS. In an embodiment, the time of transmitting the SRS is the starting time of transmitting at least one SRS resource in the set of SRS resources, or the starting time of transmitting at least one SRS resource in at least one set of SRS resources associated with the set of SRS resources.

[0121] In an embodiment of the present application, the control signaling also indicates the power control parameters of the uplink channel.

[0122] In the 5G communication system, because the flexibility of configuring the beam configuration of the uplink data channel and the uplink reference signal is higher than the flexibility of configuring the power control parameters of the data channel and the reference signal, it leads to the problem that the power control parameters of the uplink data signal and the uplink reference signal cannot be updated in time in the actual system, and the uplink interference is aggravated. The above technical problem does not provide a solution to support synchronous updating of the power control parameters of the uplink data channel and the uplink reference signal and the power control parameters in the related art.

[0123] The control signaling in the present application can also be used to indicate the power control parameters of the uplink channel. According to the control command, such as the MAC-CE signaling, the spatial relation information of the uplink reference signal is configured, and the transmission of the uplink reference signal and the power control parameters of the uplink data channel associated with the uplink reference signal are specified, so as to ensure the fast coordination of the uplink interference management of the base station and the user end (terminal), and take into account the case that the user end supports multiple antenna panels, and significantly improve the system performance.

[0124] In an embodiment of the present application, the control signaling indicates the condition for the power control parameter of the uplink channel, wherein the uplink reference signal is used in a non-codebook mode or a codebook mode.

[0125] In an embodiment of the present application, the uplink channel comprises a physical uplink shared channel or a physical uplink control channel.

[0126] When the uplink channel comprises a physical uplink shared channel or a physical uplink control channel, the uplink reference signal can be used in a non-codebook mode or a codebook mode.

[0127] In an embodiment of the present application, the control signaling indicates the power control parameter of the uplink channel, comprising resetting the closed loop power control value of the uplink channel.

[0128] When the control signaling indicates the power control parameter of the uplink channel, the closed loop power control value can be reset to achieve the effect of zeroing.

[0129] In an embodiment of the present application, the condition for resetting the closed loop power control value of the uplink channel comprises that the uplink reference signal associated with the uplink channel is used in a non-codebook mode or a codebook mode.

[0130] In an embodiment of the present application, the control signaling indicates the power control parameter of the uplink channel, further comprising determining the power control parameter of the uplink channel according to the power control parameter of the uplink reference signal associated with the uplink channel.

[0131] When the control signaling indicates the power control parameter of the uplink channel, the power control parameter of the uplink channel can be configured based on the power control parameter of the uplink reference signal associated with the uplink channel. The uplink reference signal associated with the uplink channel can be determined according to the SRI code word of the uplink reference signal corresponding to the uplink channel.

[0132] In an embodiment of the present application, the condition for determining the power control parameter of the uplink channel according to the power control parameter of the uplink reference signal associated with the uplink channel comprises that the uplink reference signal is used in a non-codebook mode or a codebook mode.

[0133] In an embodiment of the present application, the control signaling indicates the power control parameter of the uplink channel, comprising at least one of the following: determining the reference signal of path loss in the power control parameter of the uplink channel according to the downlink reference signal associated with the spatial relation parameter of the uplink reference signal associated with the uplink channel; determining the reference signal of path loss in the power control parameter of the uplink channel according to the reference signal of path loss of the uplink reference signal associated with the uplink channel; determining the open loop power control parameter in the power control parameter of the uplink channel according to the open loop power control parameter of the uplink reference signal associated with the uplink channel; and determining the closed loop power control index in the power control parameter of the uplink channel according to the closed loop power control index of the uplink reference signal associated with the uplink channel.

[0134] The control signaling indicates the power control parameter of the uplink channel, and the power control parameter of the uplink channel can be determined according to the power control parameter corresponding to the uplink reference signal associated with the uplink channel, such as the path loss reference signal, the open loop power control parameter and the closed loop power control index of the uplink channel based on the path loss reference signal, the open loop power control parameter and the closed loop power control index of the uplink reference signal associated with the uplink channel respectively.

[0135] In an embodiment, when determining the path loss reference signal in the power control parameter of the uplink channel, the downlink reference signal associated with the spatial relationship parameter of the uplink reference signal associated with the uplink channel can also be determined, which can be the path loss reference signal of the uplink reference signal.

[0136] In an embodiment of the present application, the condition for determining the power control parameter of the uplink channel based on the path loss reference signal, the open loop power control parameter and the closed loop power control index in the associated uplink reference signal can be that the purpose of the associated uplink reference signal is a non-codebook mode or a codebook mode.

[0137] In an embodiment of the present application, the indication of the power control parameter of the uplink channel includes: associating the resource indication SRI code word set of the uplink reference signal with the power control parameter of the uplink channel, wherein the SRI code word set is composed of at least one SRI code word.

[0138] When the power control signaling indicates the power control parameter of the uplink channel, the power control parameter of the uplink channel can be determined based on the SRI code word set.

[0139] In an embodiment of the present application, the SRI code word set can be composed of a bit map.

[0140] In an embodiment of the present application, the SRI code word set is composed of a bit map, including: corresponding at least one SRI code word to a bit position in the bit map; and selecting the corresponding SRI code word to form the SRI code word set in the case that the value of the bit position in the bit map is a specific value.

[0141] In an embodiment of the present application, one SRI code word set is associated with the same power control parameter.

[0142] In an embodiment of the present application, the power control parameters of the uplink channel include at least one of the following: the association of the element index in the open loop power control parameter set in the power control parameters of the uplink channel with the SRI code word through the control signaling, or the determination of the open loop power control parameter value associated with the SRI code word through the control signaling; the association of the element index in the reference signal set for path loss in the power control parameters of the uplink channel with the SRI code word through the control signaling, or the determination of the reference signal index for path loss associated with the SRI code word through the control signaling; the determination of the closed loop power control index associated with the SRI code word through the control signaling.

[0143] In the indication of the power control parameters of the uplink channel, the element index in the open loop power control parameter set, the element index in the reference signal set for path loss, and / or the closed loop power control index in the power control parameters can also be determined based on the SRI code word.

[0144] In an embodiment of the present application, the open loop power control parameter set is configured by the radio resource control signaling.

[0145] In an embodiment of the present application, the reference signal set for path loss is configured by the radio resource control signaling.

[0146] In the present embodiment, the radio resource control signaling can be sent by the base station.

[0147] In an embodiment of the present application, in the case of scheduling uplink channel transmission, such as scheduling PUSCH transmission, the power control parameters associated with the uplink channel can be determined by the power control parameters under the control signaling associated with the last (last time) transmitted uplink reference signal.

[0148] In an embodiment, the power control parameters of the uplink reference signal indicated by the control signaling override the power control parameters configured by the RRC signaling and / or the power control parameters of the uplink channel indicated by the control signaling override the power control parameters configured by the RRC signaling.

[0149] For example, the power control parameters of the SRS determined (indicated) by the MAC-CE signaling override the power control parameters configured by the RRC signaling. The power control parameters of the PUSCH determined (indicated) by the MAC-CE signaling override the power control parameters configured by the RRC signaling.

[0150] Based on the above embodiments, the transmission indication method provided by the present application can configure the spatial relationship information of the uplink reference signal according to the MAC-CE signaling, and specify the power control parameters of the uplink reference signal and the uplink data channel associated therewith, so as to ensure the fast coordination of uplink interference management between the base station and the user end, and take into account the case where the user end supports multiple antenna panels, thereby significantly improving the system performance.

[0151] For example, Table 3 is a signaling format diagram for configuring SRS and PUSCH power control parameters by control signaling in the present application.

[0152] Table 3 is a signaling format diagram for configuring SRS and PUSCH power control parameters by control signaling in the present application.

[0153]

[0154] Referring to Table 3, the transmission beam of PUSCH is determined by the beam information of SRS in non-codebook mode or codebook mode, so in the case of SRS configuration in non-codebook mode or codebook mode, the control signaling needs to provide power control parameters for each SRI code word associated with PUSCH transmission. For example, in the case of SRI = i, the control signaling gives the corresponding power control parameters, and in the case of DCI indicating that the SRI = i is used for PUSCH transmission, the user terminal needs to transmit the PUSCH according to the configured power control parameters.

[0155] Figure 5 Another flowchart of a transmission indication method provided by the present application is shown. The present application also provides a transmission indication method applied to a base station, as shown in the figure, the method comprises the following steps. Figure 5

[0156] S2010, control signaling is sent to a terminal, and the control signaling is used to indicate uplink transmission control parameters of an uplink reference signal.

[0157] S2020, the uplink reference signal sent by the terminal is received.

[0158] S2030, the uplink reference signal is processed.

[0159] The transmission indication method provided by the present embodiment sends control instructions to a terminal to indicate that the terminal updates the uplink transmission control parameters of the uplink reference signal based on the control instructions, then receives the uplink reference signal sent by the terminal, and processes the uplink reference signal, thereby ensuring that the terminal can update the uplink transmission control parameters synchronously.

[0160] In an embodiment of the present application, the control signaling comprises medium access control-control element (MAC-CE) signaling.

[0161] In an embodiment of the present application, the uplink reference signal comprises channel sounding reference signal, phase tracking reference signal and physical random access channel.

[0162] In an embodiment, the control instructions sent by the base station to the terminal can also be used to indicate power control parameters of an uplink channel. The uplink channel comprises physical uplink shared channel or physical uplink control channel.​

[0163] The application provides a transmission indication device, Figure 6 A structural schematic diagram of a transmission indication device provided by the application is shown in the figure. Figure 6 The transmission indication device in the embodiment of the application can be integrated on the terminal provided by the embodiment of the application, and the device comprises: a receiving module 61 configured to receive control signaling sent by a base station; a sending module 62 configured to transmit an uplink reference signal based on uplink transmission control parameters; and at least one processor 63 configured to indicate the uplink transmission control parameters of the uplink reference signal through the control signaling.

[0164] The transmission indication device provided by the embodiment is used to implement the transmission indication method of the embodiment shown in the figure. Figure 2 The implementation principle and technical effects of the transmission indication device provided by the embodiment are similar to those of the transmission indication method of the embodiment shown in the figure, and will not be described here. Figure 2

[0165] In an embodiment of the application, the uplink transmission control parameters comprise power control parameters.

[0166] In an embodiment of the application, the at least one processor is configured to indicate the uplink transmission control parameters of the uplink reference signal through the control signaling in at least one of the following ways: associating an open-loop power control parameter in the power control parameters with a resource set of the uplink reference signal through the control signaling; or associating an element index in an open-loop power control parameter set in the power control parameters with the resource set of the uplink reference signal through the control signaling; associating a path loss reference signal in the power control parameters with the resource set of the uplink reference signal through the control signaling; or associating an element index in a path loss reference signal set in the power control parameters with the resource set of the uplink reference signal through the control signaling; or associating a closed-loop power control index in the power control parameters with the resource set of the uplink reference signal through the control signaling.

[0167] In an embodiment of the application, when the power control parameters are determined based on the resource set of the uplink reference signal, the purpose of the uplink reference signal is beam management, codebook mode, non-codebook mode, antenna switching, or positioning.

[0168] ​In an embodiment of the application, the at least one processor is configured to indicate the uplink transmission control parameter of the uplink reference signal by at least one of the following ways through the control signaling: associating, through the control signaling, an open loop power control parameter in the power control parameter with an uplink reference signal resource in the resource set of the uplink reference signal; or associating, through the control signaling, an element index in a set of open loop power control parameters in the power control parameter with an uplink reference signal resource in the resource set of the uplink reference signal; associating, through the control signaling, a reference signal of path loss in the power control parameter with an uplink reference signal resource in the resource set of the uplink reference signal; or associating, through the control signaling, an element index in a set of reference signals of path loss in the power control parameter with an uplink reference signal resource in the resource set of the uplink reference signal; or associating, through the control signaling, a closed loop power control index in the power control parameter with an uplink reference signal resource in the resource set of the uplink reference signal.

[0169] In an embodiment of the application, when the power control parameter is determined based on the uplink reference signal resource in the resource set of the uplink reference signal, the uplink reference signal is used for non-codebook mode, antenna switching, or positioning.

[0170] In an embodiment of the application, the at least one processor is further configured to, in a case of triggering an aperiodic uplink reference signal, determine the power control parameter of the aperiodic uplink reference signal according to the power control parameter at a transmission moment of a downlink control information (DCI) or a downlink control channel of the triggered aperiodic uplink reference signal.

[0171] In an embodiment of the application, the at least one processor is further configured to, in a case of triggering an aperiodic uplink reference signal, determine the power control parameter of the aperiodic uplink reference signal according to the power control parameter at a transmission moment of a downlink control information (DCI) or a downlink control channel of the triggered aperiodic uplink reference signal.

[0172] In an embodiment of the application, the at least one processor is further configured to, in a case of triggering an aperiodic uplink reference signal, determine the power control parameter of the aperiodic uplink reference signal according to the power control parameter at a transmission moment of a downlink control information (DCI) or a downlink control channel of the triggered aperiodic uplink reference signal.

[0173] In an embodiment of the application, the at least one processor is further configured to, in a case of triggering an aperiodic uplink reference signal, determine the power control parameter of the aperiodic uplink reference signal according to the power control parameter at a transmission moment of a downlink control information (DCI) or a downlink control channel of the triggered aperiodic uplink reference signal.

[0174] In an embodiment of the application, the control signaling further indicates a power control parameter of the uplink channel.

[0175] In an embodiment of the application, the uplink channel comprises a physical uplink shared channel or a physical uplink control channel.

[0176] In an embodiment of the application, indicating the power control parameter of the uplink channel comprises resetting a closed loop power control value of the uplink channel.

[0177] In an embodiment of the application, the condition of indicating the power control parameter of the uplink channel is that a usage of an uplink reference signal is a non-codebook mode or a codebook mode.

[0178] In an embodiment of the application, the at least one processor is configured to indicate the power control parameter of the uplink channel, further comprising:

[0179] determining the power control parameter of the uplink channel according to a power control parameter of an uplink reference signal associated with the uplink channel.

[0180] In an embodiment of the application, the at least one processor is configured to indicate the power control parameter of the uplink channel by at least one of: determining a path loss reference signal in the power control parameter of the uplink channel according to a downlink reference signal associated with a spatial relation parameter of an uplink reference signal associated with the uplink channel; determining a path loss reference signal in the power control parameter of the uplink channel according to a path loss reference signal of an uplink reference signal associated with the uplink channel; determining an open loop power control parameter in the power control parameter of the uplink channel according to an open loop power control parameter of an uplink reference signal associated with the uplink channel; and determining a closed loop power control index in the power control parameter of the uplink channel according to a closed loop power control index of an uplink reference signal associated with the uplink channel.

[0181] In an embodiment of the application, a usage of an uplink reference signal associated with the uplink channel is a non-codebook mode or a codebook mode.

[0182] In an embodiment of the application, the at least one processor is configured to indicate the power control parameter of the uplink channel by: associating a set of SRI code words of the uplink reference signal with the power control parameter of the uplink channel, wherein the set of SRI code words is grouped by at least one SRI code word.

[0183] In an embodiment of the application, the at least one processor is further configured to form the set of SRI code words using a bitmap.

[0184] In an embodiment of the application, the at least one processor is configured to use the bitmap to form the SRI code word set by: corresponding at least one SRI code word to a bit position in the bitmap; and selecting the corresponding SRI code word to form the SRI code word set if the value of the bit position in the bitmap is a specific value.

[0185] In an embodiment of the application, the at least one processor is configured to indicate the uplink transmission control parameter of the uplink channel by at least one of: associating, by the control signaling, an element index in a set of open loop power control parameters of the uplink transmission control parameter with the SRI code word, or determining, by the control signaling, a value of the open loop power control parameter associated with the SRI code word; associating, by the control signaling, an element index in a set of reference signals for path loss of the uplink transmission control parameter with the SRI code word, or determining, by the control signaling, a reference signal index for path loss associated with the SRI code word; determining, by the control signaling, a closed loop power control index associated with the SRI code word.

[0186] In an embodiment of the application, the set of open loop power control parameters is configured by radio resource control signaling.

[0187] In an embodiment of the application, the set of reference signals for path loss is configured by radio resource control signaling.

[0188] In an embodiment of the application, the uplink transmission control parameter comprises a spatial relation parameter.

[0189] In an embodiment of the application, the at least one processor is configured to indicate, by the control signaling, the uplink transmission control parameter of the uplink reference signal by: activating or deactivating, by the control signaling, the uplink reference signal, or configuring, by the control signaling, a spatial relation parameter of the uplink reference signal, wherein the uplink reference signal is a semi-persistent uplink reference signal.

[0190] In an embodiment of the application, the at least one processor is configured to indicate, by the control signaling, the uplink transmission control parameter of the uplink reference signal by: configuring, by the control signaling, a spatial relation parameter of the uplink reference signal, wherein the uplink reference signal is an aperiodic uplink reference signal.

[0191] In an embodiment of the application, in a case where the reference signal associated with the spatial relation parameter is a downlink reference signal, the control signaling comprises a group index.

[0192] In an embodiment of the application, in a case where the use of the uplink reference signal is beam management or antenna switching, the control signaling comprises a group index.

[0193] In one embodiment of the present application, the spatial relationship parameter is selected from a spatial relationship parameter set, wherein the spatial relationship parameter set is configured by radio resource control signaling.

[0194] In one embodiment of the present application, at least one processor is configured to indicate the uplink transmission control parameters of the uplink reference signal through the control signaling in the following manner: when a non-periodic uplink reference signal is triggered by control signaling, the spatial relationship parameters associated with the triggered uplink reference signal are determined based on the downlink control information DCI of the triggered uplink reference signal or the spatial relationship parameters of the transmission moment of the downlink control channel.

[0195] In one embodiment of the present application, at least one processor is configured to indicate the uplink transmission control parameters of the uplink reference signal through the control signaling in the following manner: when a non-periodic uplink reference signal is triggered by a control instruction, the spatial relationship parameters associated with the triggered uplink reference signal are determined based on the spatial relationship parameters at the sending moment of the triggered uplink reference signal.

[0196] In one embodiment of the present application, at least one processor is configured to indicate the uplink transmission control parameters of the uplink reference signal through the control signaling in the following manner: when a non-periodic uplink reference signal is triggered by a control instruction, the spatial relationship parameters associated with the triggered uplink reference signal are determined according to the spatial relationship parameters at the starting transmission time of the uplink reference signal resource set associated with the triggering state of the triggered uplink reference signal.

[0197] In one embodiment of the present application, at least one processor is configured to indicate the uplink transmission control parameters of the uplink reference signal through the control signaling in the following manner: when a non-periodic uplink reference signal is triggered by a control instruction, the spatial relationship parameters associated with the triggered uplink reference signal are determined based on the spatial relationship parameters at the starting transmission time of at least one uplink reference signal resource set associated with the triggered uplink reference signal.

[0198] In one embodiment of the present application, at least one uplink reference signal resource set associated with an uplink reference signal is used for antenna switching.

[0199] In one embodiment of the present application, the control signaling includes Media Access Control-Control Element MAC-CE signaling.

[0200] In one embodiment of the present application, the uplink reference signal includes: a channel sounding reference signal, a phase tracking reference signal and a physical random access channel.

[0201] In one embodiment of the present application, the effective time indicated by the control signaling is determined by the sending time of the hybrid automatic repeat request acknowledgement signaling HARQ-ACK associated with the physical downlink shared channel carrying the control signaling.

[0202] This application further provides a transmission indication device, Figure 7 This is a structural diagram of another transmission indication device provided by this application. Figure 7 As shown, a transmission indication device in an embodiment of the present application can be integrated on the base station provided in an embodiment of the present application, and the device includes: a sending module 71, configured to send control signaling to the terminal, and the control signaling is used to indicate the uplink transmission control parameters of the uplink reference signal; a receiving module 72, configured to receive the uplink reference signal sent by the terminal; and at least one processor 73, configured to: process the uplink reference signal.

[0203] The transmission indication device provided in this embodiment is used to implement the following Figure 5 The transmission indication method of the embodiment shown in the figure is implemented by the transmission indication device integrated on the base station in the embodiment according to the principle and technical effect. Figure 5 The transmission indication method of the illustrated embodiment is similar and will not be described again here.

[0204] In one embodiment of the present application, the control signaling includes Media Access Control-Control Element MAC-CE signaling.

[0205] In one embodiment of the present application, the uplink reference signal includes: a channel sounding reference signal, a phase tracking reference signal and a physical random access channel.

[0206] The embodiment of the present application further provides a terminal, which includes the embodiment of the present application Figure 6 The transmission indicating device is provided.

[0207] This embodiment provides a terminal including: Figure 6 The transmission indication device shown in the figure realizes the same principle and technical effect as the transmission indication device when performing transmission indication. Figure 6 The transmission indication device of the illustrated embodiment is similar and will not be described again here.

[0208] The embodiment of the present application also provides a base station, which includes the embodiment of the present application Figure 7 A transmission indicator device is provided.

[0209] This embodiment provides a base station including: Figure 7 The transmission indication device shown in the figure realizes the same principle and technical effect as the transmission indication device when performing transmission indication. Figure 7 The transmission indication device of the illustrated embodiment is similar and will not be described again here.

[0210] The embodiment of the present application further provides a storage medium storing a computer program, and the computer program is executed by a processor to implement the transmission indication method in any of the embodiments of the present application. The transmission indication method applied to a terminal comprises: receiving control signaling sent by a base station; indicating uplink transmission control parameters of an uplink reference signal through the control signaling; and transmitting the uplink reference signal based on the uplink transmission control parameters.

[0211] The transmission indication method applied to a base station comprises: sending control signaling to a terminal, the control signaling being used to indicate uplink transmission control parameters of an uplink reference signal; receiving the uplink reference signal sent by the terminal; and processing the uplink reference signal.

[0212] The above is only exemplary embodiments of the present application, and is not used to limit the protection scope of the present application.

[0213] Those skilled in the art should understand that the term terminal covers any suitable type of wireless user equipment, such as a mobile phone, a portable data processing apparatus, a portable web browser or a vehicle-mounted mobile station.

[0214] Generally, various embodiments of the present application can be realized in hardware or special-purpose circuitry, software, logic, or any combination thereof. For example, some aspects can be realized in hardware, while other aspects can be realized in firmware or software which can be executed by a controller, microprocessor or other computing device, although the present application is not limited thereto.

[0215] Embodiments of the present application can be implemented by a data processor of a mobile device executing computer program instructions, for example, in a processor entity, or by hardware, or by a combination of software and hardware. The computer program instructions can be assembly instructions, Instruction Set Architecture (ISA) instructions, machine instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source code or object code written in any combination of one or more programming languages.

[0216] The block diagrams of any logical flow of the present application can represent program steps or can represent interconnected logic circuits, modules, and functions, or can represent a combination of program steps and logic circuits, modules, and functions. The computer program can be stored on a memory. The memory can be of any type suitable to the local technical environment and can be realized using any suitable data storage technology, such as, but not limited to, read only memory (ROM), random access memory (RAM), optical storage devices, and systems, such as digital video disc (DVD) or compact disc (CD), and the like. The computer readable medium can include non-transitory storage media. The data processor can be of any type suitable to the local technical environment, and can include, but is not limited to, a general purpose computer, a special purpose computer, a microprocessor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), and a processor based on multi-core processor architecture.

Claims

1. A transmission indication method, characterized by, The method applied to a terminal comprises: receiving control signaling sent by a base station; acquiring uplink transmission control parameters of an uplink reference signal based on the control signaling, wherein an activation time of the uplink transmission control parameters is determined by a sending time of hybrid automatic repeat request acknowledgement (HARQ-ACK) signaling associated with a physical downlink shared channel (PDSCH) carrying the control signaling, wherein the uplink reference signal is aperiodic sounding reference signal (SRS); receiving downlink control information (DCI) triggering the uplink reference signal; determining spatial relation information associated with the uplink reference signal according to spatial relation information at a sending time of the triggered uplink reference signal; and transmitting the uplink reference signal based on the uplink transmission control parameters and the determined spatial relation information associated with the uplink reference signal.

2. The method of claim 1, wherein, The uplink transmission control parameters of the uplink reference signal comprise spatial relation parameters.

3. The method of claim 2, wherein, The acquiring of the uplink transmission control parameters of the uplink reference signal based on the control signaling comprises: acquiring the spatial relation parameters based on the control signaling.

4. The method of claim 2, wherein, In a case where a reference signal associated with the spatial relation parameters is a downlink reference signal, or in a case where a use of the uplink reference signal is beam management or antenna switching, the control signaling comprises a group index.

5. The method of claim 1, wherein, The control signaling comprises medium access control-control element (MAC-CE) signaling.

6. The method of claim 1, wherein, The uplink transmission control parameters of the uplink reference signal comprise power control parameters.

7. The method of claim 6, wherein: an element index in a set of reference signals for path loss in the power control parameters is associated with a set of resources of the uplink reference signal by the control signaling, a reference signal for path loss of power control parameters of an uplink channel is acquired according to the associated element index.

8. A terminal comprising a memory storing computer instructions and a processor in communication with the memory, characterized in that, When the processor executes the computer instructions, the processor is configured to cause the terminal to: receive control signaling sent by a base station; acquire uplink transmission control parameters of an uplink reference signal based on the control signaling, wherein an activation time of the uplink transmission control parameters is determined by a sending time of hybrid automatic repeat request acknowledgement (HARQ-ACK) signaling associated with a physical downlink shared channel (PDSCH) carrying the control signaling, wherein the uplink reference signal is aperiodic sounding reference signal (SRS); receive downlink control information (DCI) triggering the uplink reference signal; determine spatial relation information associated with the uplink reference signal according to spatial relation information at a sending time of the triggered uplink reference signal; and transmit the uplink reference signal based on the uplink transmission control parameters and the determined spatial relation information associated with the uplink reference signal. The uplink transmission control parameters of the uplink reference signal comprise spatial relation parameters.

9. The terminal according to claim 8, characterized by When the processor is configured to cause the terminal to acquire the uplink transmission control parameters of the uplink reference signal based on the control signaling, the processor is configured to cause the terminal to:

10. The terminal according to claim 9, characterized by acquire the spatial relation parameters based on the control signaling. ​ 11. The terminal according to claim 9, characterized by In a case where the reference signal associated with the spatial relation parameter is a downlink reference signal, or in a case where the usage of the uplink reference signal is beam management or antenna switching, the control signaling comprises a group index.

12. The terminal according to claim 8, characterized by The control signaling comprises medium access control-control element (MAC-CE) signaling.

13. The terminal according to claim 8, characterized by The uplink transmission control parameter of the uplink reference signal comprises a power control parameter.

14. The terminal according to claim 13, wherein, an element index in a set of reference signals for path loss in the power control parameter is associated with a set of resources of the uplink reference signal through the control signaling, a reference signal for path loss of a power control parameter of an uplink channel is obtained according to the associated element index.

15. A transmission indication method, comprising: The method applied to a base station, the method comprising: sending, to a terminal, control signaling for indicating an uplink transmission control parameter of an uplink reference signal, wherein the uplink reference signal is aperiodic sounding reference signal (SRS), and wherein an activation time of the uplink transmission control parameter is determined by a sending time of hybrid automatic repeat request-acknowledgement (HARQ-ACK) signaling associated with a physical downlink shared channel carrying the control signaling; sending downlink control information (DCI) triggering the uplink reference signal; receiving the uplink reference signal sent by the terminal based on the uplink transmission control parameter and spatial relation information associated with the uplink reference signal, the spatial relation information associated with the uplink reference signal being determined according to spatial relation information at a sending time of the triggered uplink reference signal; processing the uplink reference signal.

16. The method of claim 15, wherein, The uplink transmission control parameter of the uplink reference signal comprises a spatial relation parameter.

17. The method according to claim 16, wherein, the control signaling is for indicating the spatial relation parameter.

18. A base station comprising a memory that stores computer instructions and a processor that is in communication with the memory, wherein, When the processor executes the computer instructions, the processor is configured to cause the base station to: send, to a terminal, control signaling for indicating an uplink transmission control parameter of an uplink reference signal, wherein the uplink reference signal is aperiodic sounding reference signal (SRS), and wherein an activation time of the uplink transmission control parameter is determined by a sending time of hybrid automatic repeat request-acknowledgement (HARQ-ACK) signaling associated with a physical downlink shared channel carrying the control signaling; send downlink control information (DCI) triggering the uplink reference signal; receive the uplink reference signal sent by the terminal based on the uplink transmission control parameter and spatial relation information associated with the uplink reference signal, the spatial relation information associated with the uplink reference signal being determined according to spatial relation information at a sending time of the triggered uplink reference signal; process the uplink reference signal.

19. The base station of claim 18, wherein, The uplink transmission control parameter of the uplink reference signal comprises a spatial relation parameter.

20. The base station according to claim 19, wherein, the control signaling is for indicating the spatial relation parameter.

Images