CN112583747A

CN112583747A - Method for receiving indication, method for sending indication and communication device

Info

Publication number: CN112583747A
Application number: CN201910944410.4A
Authority: CN
Inventors: 葛士斌; 金黄平; 范利; 尹海帆; 毕晓艳; 种稚萌
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-03-30
Anticipated expiration: 2039-09-30
Also published as: CN112583747B; WO2021063210A1

Abstract

The application provides a method for receiving indication, a method for sending indication and a communication device, which aim to keep the timing of an uplink reference signal unchanged within a period of time, thereby avoiding the influence on feature space calculation. The method can comprise the following steps: the terminal equipment receives first indication information from the network equipment, wherein the first indication information is used for indicating the terminal equipment to activate the timing processing of the uplink reference signal; and the terminal equipment activates the processing of the timing of the uplink reference signal according to the indication information. For example, the terminal device keeps the timing of the uplink reference signal unchanged for a period of time, and for example, the terminal device reports the timing of the uplink reference signal to be adjusted.

Description

Method for receiving indication, method for sending indication and communication device

Technical Field

The present application relates to the field of communications, and more particularly, to a method of receiving an indication, a method of transmitting an indication, and a communication apparatus.

Background

In some communication systems, such as the fifth generation (5G) communication system, there are higher requirements on system capacity, spectrum efficiency, and the like. In a 5G communication system, a Massive multiple-input multiple-output (Massive MIMO) technology plays a crucial role in the spectral efficiency of the system.

When multiple-input multiple-output (MIMO) technology is adopted, modulation coding and signal precoding are required when a network device transmits data to a terminal device. How the network device sends data to the terminal device needs to depend on Channel State Information (CSI) fed back to the network device by the terminal device.

Therefore, the accuracy of CSI is very important to the performance of the system.

Disclosure of Invention

The application provides a method for receiving an indication, a method for sending the indication and a communication device, so as to reduce the influence on the estimation of an uplink channel and improve the overall system performance.

In a first aspect, a method of receiving an indication is provided. The method may be executed by the terminal device, or may also be executed by a chip or a chip system or a circuit configured in the terminal device, which is not limited in this application.

The method can comprise the following steps: receiving first indication information from a network device, wherein the first indication information is used for indicating to activate the processing of uplink reference signal timing; and activating the processing of the uplink reference signal timing according to the first indication information.

Alternatively, the uplink reference signal may be a Sounding Reference Signal (SRS).

Optionally, according to the first indication information, processing of the uplink reference signal timing is activated, and then, the uplink reference signal timing may be made unchanged for a period of time.

Based on the above technical solution, the network device may restrict or control an adjustment behavior of the uplink reference signal timing of the terminal device through the first indication information, so that the uplink reference signal timing is kept unchanged for a period of time, thereby reducing an error introduced when calculating a feature space, reducing an influence on uplink channel estimation, ensuring performance of a Channel State Information (CSI) acquisition scheme based on partial reciprocity, and improving overall system performance.

With reference to the first aspect, in certain implementations of the first aspect, second indication information is received from the network device, where the second indication information is used to indicate that the processing of the uplink reference signal timing is deactivated; and deactivating the processing of the timing of the uplink reference signal according to the second indication information.

Optionally, the processing of the uplink reference signal timing is deactivated, which may also be understood as stopping the processing of the uplink reference signal timing.

Based on the above technical solution, the network device can deactivate the terminal device to process the timing of the uplink reference signal through the second indication information, thereby ensuring normal communication.

With reference to the first aspect, in some implementations of the first aspect, the processing of the uplink reference signal timing includes: the uplink reference signal timing remains unchanged for one or more time windows; or reporting the adjustment of the uplink reference signal timing in one or more time windows.

Based on the technical scheme, the network equipment restricts or controls the adjustment behavior of the uplink reference signal timing of the terminal equipment, so that the terminal equipment keeps the uplink reference signal timing unchanged within a period of time. Or, the network device restricts or controls the adjustment behavior of the uplink reference signal timing of the terminal device, so that the terminal device reports the timing adjustment within a period of time, and the network device can compensate the timing adjustment, thereby keeping the uplink reference signal timing unchanged.

With reference to the first aspect, in some implementations of the first aspect, if the uplink reference signal timing remains unchanged within a time window or the uplink reference signal timing adjustment is reported within a time window, a starting time unit of the time window is: a time unit receiving the first indication information, or an nth time unit after receiving the first indication information, or a time unit sending the uplink reference signal for the kth time after receiving the first indication information; n and K are positive integers.

Illustratively, N and K may be predetermined, as prescribed by the protocol; or, it may be network device configured; alternatively, the predetermined value may be predetermined, and is not limited thereto.

For example, after receiving the first indication information, the time unit for sending the uplink reference signal for the kth time may be understood as the time unit for sending the uplink reference signal for the kth time after the terminal device receives the first indication information. It is understood that the K-th time may be counted after receiving the first indication information from the terminal device. That is, after receiving the first indication information, the terminal device may keep the timing of the uplink reference signal unchanged in the kth time unit for sending the uplink reference signal, or report the adjustment of the timing of the uplink reference signal. For example, K is 1, that is, after receiving the first indication information, the terminal device starts to transmit the uplink reference signal in the time unit of the 1 st time, and keeps the uplink reference signal timing unchanged in a time window, or reports the adjustment of the uplink reference signal timing in a time window.

With reference to the first aspect, in some implementations of the first aspect, if the uplink reference signal timing remains unchanged within a time window or the uplink reference signal timing adjustment is reported within a time window, an end time unit of the time window is: a time unit receiving second indication information from the network device, where the second indication information is used to indicate that the processing of the timing of the uplink reference signal is deactivated, or an lth time unit after a starting time unit of the time window, or a time unit after J time units have passed after the starting time unit of the time window, or a time unit sending the mth time uplink reference signal after receiving the first indication information, or after activating the processing of the timing of the uplink reference signal; l, J and M are positive integers.

Optionally, the ending time unit of the time window may also be Y time units after receiving the second indication information, or Z time units after the terminal device receives the second indication information. Z, Y is a positive integer.

Illustratively, Y, Z, L, J and M may be pre-set, as pre-specified by the protocol; or, it may be network device configured; alternatively, the predetermined value may be predetermined, and is not limited thereto.

Optionally, the ending time unit of the time window is the lth time unit after the starting time unit of the time window, that is, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the processing of the timing of the uplink reference signal may be deactivated in the lth time unit after the starting time unit of the time window, that is, the timing of the uplink reference signal is not kept unchanged any more, or the timing of the uplink reference signal is variable. In other words, from a length perspective, the uplink reference signal timing is kept constant for L time units from the starting time unit of the time window.

Optionally, the ending time unit of the time window is a time unit after J time units have passed after the starting time unit of the time window, that is, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the processing on the timing of the uplink reference signal may be deactivated or stopped in a time unit after J time units have passed after the starting time unit of the time window, that is, the timing of the uplink reference signal is no longer kept unchanged, or the timing of the uplink reference signal is variable. In other words, from a length point of view, the uplink reference signal timing is kept unchanged for (J +1) time units from the starting time unit of the time window.

For example, after receiving the first indication information, the time unit for sending the uplink reference signal M times may be understood as the time unit for sending the uplink reference signal M times after the terminal device receives the first indication information, that is, the M times may be counted from the time when the first indication information is received.

Or, for example, after the processing of the uplink reference signal timing is activated, the time unit of the mth uplink reference signal is sent, and it can be understood that the mth uplink reference signal timing may also be counted from the time when the terminal device activates the processing of the uplink reference signal timing.

With reference to the first aspect, in some implementations of the first aspect, if the timing of the uplink reference signal remains unchanged in multiple time windows or the timing of the uplink reference signal is reported in multiple time windows, a starting time unit of a first time window is: a time unit receiving the first indication information, or an S-th time unit after receiving the first indication information, or a time unit sending the uplink reference signal for the P-th time after receiving the first indication information; s and P are positive integers.

Alternatively, with respect to the start time units of other time windows in the plurality of time windows, the start time unit of the first time window may be referred to, or may be separated from the start time unit or the end time unit of the first time window by a1 time units, or may be separated from the start time unit or the end time unit of the previous time window by a2 time units. Wherein A1 and A2 are positive integers.

Alternatively, the time lengths of the respective time windows may be the same.

Alternatively, the time intervals of the respective time windows may be the same. For example, it may be 0, or it may be spaced apart by a certain time.

For example, after receiving the first indication information, the time unit for sending the uplink reference signal for the pth time may be understood as the time unit for sending the uplink reference signal for the pth time after the terminal device receives the first indication information. It is understood that the P-th time may be counted after receiving the first indication information from the terminal device. That is, after receiving the first indication information, the terminal device may keep the timing of the uplink reference signal unchanged in the time unit for transmitting the uplink reference signal for the pth time, or report the adjustment of the timing of the uplink reference signal. For example, P is 1, that is, after receiving the first indication information, the terminal device starts to transmit the uplink reference signal in the time unit of the 1 st time, and keeps the uplink reference signal timing unchanged in a time window, or reports the adjustment of the uplink reference signal timing in a time window.

With reference to the first aspect, in some implementations of the first aspect, if the uplink reference signal timing remains unchanged in multiple time windows or the uplink reference signal timing adjustment is reported in multiple time windows, an ending time unit of a first time window is: a time unit after the T time unit of the starting time unit of the first time window, or a time unit after R time units pass after the starting time unit of the first time window, or a time unit for sending the uplink reference signal for the Q-th time after receiving the first indication information, or after activating the timing processing of the uplink reference signal; t, R and Q are positive integers.

Optionally, the ending time unit of the first time window is the T-th time unit after the starting time unit of the first time window, in other words, starting from the starting time unit of the first time window, the uplink reference signal timing keeps T time units unchanged until the uplink reference signal timing is kept unchanged in the second time window.

Optionally, the ending time unit of the first time window is a time unit after R time units have elapsed since the starting time unit of the first time window, in other words, the uplink reference signal timing is kept unchanged for (R +1) time units from the starting time unit of the first time window until the uplink reference signal timing is kept unchanged in the second time window.

For example, after receiving the first indication information, the time unit for sending the uplink reference signal for the Q-th time may be understood as the time unit for sending the uplink reference signal for the Q-th time after the terminal device receives the first indication information, that is, the Q-th time may be counted after the terminal device receives the first indication information.

Or, for example, after the processing of the uplink reference signal timing is activated, the time unit for transmitting the uplink reference signal for the Q-th time is sent, and it can be understood that the Q-th time may also be counted from the time when the terminal device activates the processing of the uplink reference signal timing.

Alternatively, with respect to the end time units of other time windows in the plurality of time windows, the end time unit of the first time window may be referred to, or may be separated from the start time unit or the end time unit of the first time window by B1 time units, or may be separated from the start time unit or the end time unit of the previous time window by B2 time units, where B1 and B2 are positive integers.

With reference to the first aspect, in certain implementations of the first aspect, the first indication information is indicated explicitly or implicitly.

Alternatively, the first indication information may be carried in one or a combination of at least two of radio resource control (rrc) signaling, Medium Access Control (MAC) layer signaling, and physical layer signaling. The radio resource control signaling includes, for example, Radio Resource Control (RRC) signaling; the MAC layer signaling includes, for example, a MAC Control Element (CE); the physical layer signaling includes, for example, Downlink Control Information (DCI).

Alternatively, the first indication information may be based on an active signaling implementation of a CSI acquisition scheme with partial reciprocity (e.g., Frequency Division Duplexing (FDD) partial reciprocity).

Alternatively, the first indication information may be implemented based on activation signaling of the feature space scheme.

With reference to the first aspect, in certain implementations of the first aspect, the second indication information is indicated explicitly or implicitly.

Alternatively, the second indication information may be carried in one or a combination of at least two of radio resource control signaling, MAC layer signaling, and physical layer signaling. Wherein, the radio resource control signaling includes, for example, RRC signaling; MAC layer signaling includes, for example, MAC CE; the physical layer signaling includes, for example, DCI.

Optionally, the second indication information may be implemented based on deactivation signaling of a CSI acquisition scheme of partial reciprocity (e.g., FDD partial reciprocity).

Optionally, the second indication information may be implemented based on deactivation signaling of the feature space scheme.

In a second aspect, a method of transmitting an indication is provided. The method may be performed by a network device, or may be performed by a chip or a system of chips or a circuit configured in the network device, which is not limited in this application.

The method can comprise the following steps: generating first indication information, wherein the first indication information is used for indicating to activate the processing of the timing of the uplink reference signal; and sending the first indication information.

Based on the above technical solution, the network device may restrict or control the adjustment behavior of the uplink reference signal timing of the terminal device through the first indication information, so that the uplink reference signal timing remains unchanged for a period of time, thereby reducing an error introduced when calculating a feature space, reducing an influence on uplink channel estimation, ensuring the performance of a CSI acquisition scheme based on partial reciprocity, and improving the overall system performance.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: and sending second indication information, wherein the second indication information is used for indicating that the processing of the timing of the uplink reference signal is deactivated.

With reference to the second aspect, in certain implementations of the second aspect, the method further includes: receiving an adjustment of the uplink reference signal timing within one or more time windows; adjusting the uplink reference signal timing based on the adjustment of the uplink reference signal timing.

With reference to the second aspect, in some implementations of the second aspect, the first indication information is indicated explicitly or implicitly.

With reference to the second aspect, in some implementations of the second aspect, the second indication information is indicated explicitly or implicitly.

In a third aspect, a communication device is provided, which is configured to perform the communication method provided in the first aspect. In particular, the communication device may comprise means for performing the communication method provided by the first aspect.

In a fourth aspect, a communication apparatus is provided, which is configured to execute the communication method provided in the second aspect. In particular, the communication device may comprise means for performing the communication method provided by the second aspect.

In a fifth aspect, a communications apparatus is provided that includes a processor. The processor is coupled to the memory and is operable to execute instructions in the memory to implement the communication method of the first aspect described above in any of the possible implementations of the first aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface for inputting and/or outputting information. The information includes at least one of instructions and data.

In one implementation, the communication device is a terminal device. When the communication device is a terminal device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip or a system of chips. When the communication device is a chip or a system of chips, the communication interface may be an input/output interface, which may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit on the chip or the system of chips, and the like. The processor may also be embodied as a processing circuit or a logic circuit.

In another implementation, the communication device is a chip or a system of chips configured in the terminal equipment.

Alternatively, the transceiver may be a transmit-receive circuit. Alternatively, the input/output interface may be an input/output circuit.

In a sixth aspect, a communications apparatus is provided that includes a processor. The processor is coupled to the memory and is operable to execute the instructions in the memory to implement the communication method of any of the above-mentioned second aspect and possible implementations of the second aspect. Optionally, the communication device further comprises a memory. Optionally, the communication device further comprises a communication interface, the processor being coupled to the communication interface for inputting and/or outputting information. The information includes at least one of instructions and data.

In one implementation, the communication device is a network device. When the communication device is a network device, the communication interface may be a transceiver, or an input/output interface.

In another implementation, the communication device is a chip or a system of chips. When the communication device is a chip or a system of chips, the communication interface may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit, etc. on the chip or the system of chips. The processor may also be embodied as a processing circuit or a logic circuit.

In another implementation, the communication device is a chip or a system of chips configured in the network device.

In a seventh aspect, a computer-readable storage medium is provided, on which a computer program is stored, which, when executed by a communication apparatus, causes the communication apparatus to implement the communication method in the first aspect and any possible implementation manner of the first aspect.

In an eighth aspect, there is provided a computer-readable storage medium having stored thereon a computer program which, when executed by a communication apparatus, causes the communication apparatus to implement the second aspect and the communication method in any possible implementation manner of the second aspect.

In a ninth aspect, a computer program product containing instructions is provided, which when executed by a computer causes the communication apparatus to implement the communication method provided in the first aspect.

In a tenth aspect, a computer program product containing instructions that, when executed by a computer, cause a communication apparatus to implement the communication method provided by the second aspect is provided.

In an eleventh aspect, a communication system is provided, which includes the foregoing network device and terminal device.

Drawings

Fig. 1 and 2 are schematic diagrams of a communication system suitable for use with embodiments of the present application;

fig. 3 is a schematic flow chart of CSI feedback by the terminal device;

FIG. 4 is a schematic diagram of a method of receiving an indication according to an embodiment of the application;

FIGS. 5 and 6 are schematic diagrams of methods of receiving an indication suitable for use with embodiments of the present application;

fig. 7 is a schematic block diagram of a communication device provided by an embodiment of the present application;

fig. 8 is yet another schematic block diagram of a communication device provided by an embodiment of the present application;

fig. 9 is a schematic structural diagram of a terminal device provided in an embodiment of the present application;

fig. 10 is a schematic structural diagram of a network device according to an embodiment of the present application.

Detailed Description

The technical solution in the present application will be described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, a Universal Mobile Telecommunications System (UMTS), a fifth generation (5th generation, 5G) mobile communications system, a New Radio (NR), or the like. The 5G mobile communication system may include a non-independent Network (NSA) and/or an independent network (SA), among others.

The technical scheme provided by the application can also be applied to future communication systems, such as a sixth generation mobile communication system. The communication system may also be a PLMN network, a device-to-device (D2D) network, a machine-to-machine (M2M) network, an internet of things (IoT) network, or other network. The IoT network may comprise, for example, a car networking network. The communication modes in the car networking system are collectively referred to as V2X (X represents anything), for example, the V2X communication includes: vehicle to vehicle (V2V), vehicle to roadside infrastructure (V2I), vehicle to pedestrian (V2P) or vehicle to network (V2N), etc.

The terminal device in the embodiment of the present application may also be referred to as: user Equipment (UE), Mobile Station (MS), Mobile Terminal (MT), access terminal, subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user device, etc.

The terminal device may be a device providing voice/data connectivity to a user, e.g. a handheld device, a vehicle mounted device, etc. with wireless connection capability. Currently, some examples of terminals are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote operation (remote local supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation security (transportation safety), a wireless terminal in city (city), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (wireless local) phone, a personal digital assistant (WLL) station, a handheld personal communication device with wireless communication function, a wireless terminal in industrial control (industrial control), a wireless terminal in transportation security (personal control), a wireless terminal in city (smart home), a wireless terminal in smart home (smart home), a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a wireless local loop (personal digital assistant (PDA) phone, a wireless local communication device with wireless communication function, a wireless communication device, a communication device, A computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a Public Land Mobile Network (PLMN) for future evolution, and the like, which are not limited in this embodiment of the present application.

By way of example and not limitation, in the embodiments of the present application, the terminal device may also be a wearable device. Wearable equipment can also be called wearable intelligent equipment, is the general term of applying wearable technique to carry out intelligent design, develop the equipment that can dress to daily wearing, like glasses, gloves, wrist-watch, dress and shoes etc.. A wearable device is a portable device that is worn directly on the body or integrated into the clothing or accessories of the user. The wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction and cloud interaction. The generalized wearable smart device includes full functionality, large size, and can implement full or partial functionality without relying on a smart phone, such as: smart watches or smart glasses and the like, and only focus on a certain type of application functions, and need to be used in cooperation with other devices such as smart phones, such as various smart bracelets for physical sign monitoring, smart jewelry and the like.

In addition, in the embodiment of the application, the terminal device may also be a terminal device in an IoT system, where IoT is an important component of future information technology development, and the main technical feature of the IoT system is to connect an article with a network through a communication technology, so as to implement an intelligent network with interconnected human-computer and interconnected articles. In the embodiment of the present application, the IoT technology can achieve massive connection, deep coverage, and power saving for the terminal through, for example, a Narrowband (NB) technology.

In addition, in this embodiment of the application, the terminal device may further include sensors such as an intelligent printer, a train detector, and a gas station, and the main functions include collecting data (part of the terminal device), receiving control information and downlink data of the network device, and sending electromagnetic waves to transmit uplink data to the network device.

In addition, the network device in this embodiment may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in a global system for mobile communications (GSM) system or a Code Division Multiple Access (CDMA) system, may also be a base station (NodeB, NB) in a Wideband Code Division Multiple Access (WCDMA) system, may also be an evolved base station (evolved NodeB, eNB, or eNodeB) in an LTE system, may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario, or may 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, and the like, and the present embodiment is not limited.

The network device in this embodiment may be a device in a wireless network, for example, a Radio Access Network (RAN) node that accesses a terminal to the wireless network. Currently, some examples of RAN nodes are: a base station, a next generation base station gNB, a Transmission Reception Point (TRP), an evolved Node B (eNB), a home base station, a baseband unit (BBU), or an Access Point (AP) in a WiFi system.

In one network configuration, a network device may include a Centralized Unit (CU) node, or a Distributed Unit (DU) node, or a RAN device including a CU node and a DU node, or a control plane CU node (CU-CP node) and a user plane CU node (CU-UP node), and a RAN device of a DU node.

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

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

For the understanding of the embodiments of the present application, a communication system suitable for the embodiments of the present application will be described in detail with reference to fig. 1 and 2.

Fig. 1 is a diagram of a wireless communication system 100 suitable for use in embodiments of the present application. As shown in fig. 1, the wireless communication system 100 may include at least one network device, such as the network device 111 shown in fig. 1, and the wireless communication system 100 may further include at least one terminal device, such as the terminal devices 121 to 123 shown in fig. 1. The network equipment and the terminal equipment can be both provided with a plurality of antennas, and the network equipment and the terminal equipment can communicate by using a multi-antenna technology.

When the network device communicates with the terminal device, the network device may manage one or more cells, and an integer number of terminal devices may be in one cell. Optionally, the network device 111 and the terminal devices 121 to 123 form a single-cell communication system, and without loss of generality, a cell is denoted as cell # 1. Network device 111 may be a network device in cell #1, or network device 111 may serve a terminal device (e.g., terminal device 121) in cell # 1.

It should be noted that a cell may be understood as an area within the wireless signal coverage of a network device.

Fig. 2 is another schematic diagram of a wireless communication system 200 suitable for use in embodiments of the present application. As shown in fig. 2, the technical solution of the embodiment of the present application may also be applied to D2D communication. The wireless communication system 200 includes a plurality of terminal devices, such as terminal device 124 through terminal device 126 in fig. 2. Communication may be made directly between end device 124 to end device 126. For example, terminal device 124 and terminal device 125 may transmit data to terminal device 126 separately or simultaneously.

It should be understood that fig. 1 and 2 are only exemplary, and the present application is not limited thereto. For example, the embodiments of the present application may be applied to any communication system as long as at least two devices exist in the communication system, where one device needs to send indication information to indicate a transmission direction; the other device receives the indication information and may determine a transmission direction for a certain time based on the indication information.

To facilitate understanding of the embodiments of the present application, a brief description of several terms referred to in the present application will be given below.

1. The precoding technology comprises the following steps: the network device can process the signal to be transmitted by means of the precoding matrix matched with the channel state under the condition of the known channel state, so that the signal to be transmitted after precoding is matched with the channel, and the complexity of eliminating the influence between the channels by the receiving device is reduced. Therefore, by precoding the signal to be transmitted, the received signal quality (e.g., signal to interference plus noise ratio (SINR)) is improved. Therefore, by using the precoding technique, the transmission between the sending device and the multiple receiving devices can be realized on the same time-frequency resource, that is, multi-user multiple input multiple output (MU-MIMO) is realized. It should be understood that the related descriptions regarding precoding techniques herein are merely exemplary for ease of understanding and are not intended to limit the scope of the embodiments of the present application. In a specific implementation process, the sending device may also perform precoding in other manners. For example, when the channel information (for example, but not limited to, the channel matrix) cannot be obtained, precoding is performed using a preset precoding matrix or a weighting processing method. For brevity, the detailed contents thereof are not described herein again.

2. Channel reciprocity: in a Time Division Duplex (TDD) mode, uplink and downlink channels transmit signals on different time domain resources on the same frequency domain resource. The channel fading experienced by the signals on the uplink and downlink channels can be considered to be the same over a relatively short time (e.g., the coherence time of the channel propagation). This is the reciprocity of the uplink and downlink channels. Based on reciprocity of the uplink and downlink channels, the network device may measure the uplink channel according to an uplink reference signal, such as a Sounding Reference Signal (SRS), and may estimate the downlink channel according to the uplink channel, thereby determining a precoding matrix for downlink transmission.

The uplink and downlink channels in Frequency Division Duplex (FDD) mode have some reciprocity, such as angle reciprocity and delay reciprocity, in other words, delay and angle reciprocity in the FDD mode. Thus, the angle and the time delay may also be referred to as reciprocity parameters.

Since the signal may travel multiple paths from the transmit antenna to the receive antenna as it travels through the wireless channel. Multipath delay causes frequency selective fading, which is a change in the frequency domain channel. The delay is the transmission time of the radio signal on different transmission paths, is determined by the distance and the speed, and has no relation with the frequency domain of the radio signal. When signals are transmitted on different transmission paths, different transmission delays exist due to different distances. Therefore, the uplink and downlink channels with the same delay in FDD mode can be considered to be identical or reciprocal.

In addition, the angle may refer to an angle of arrival (AOA) at which a signal arrives at a receiving antenna via a wireless channel, and may also refer to an angle of departure (AOD) at which a signal is transmitted through a transmitting antenna. In this embodiment, the angle may refer to an arrival angle at which the uplink signal reaches the network device, or may refer to a departure angle at which the network device transmits the downlink signal. The angle of arrival of the uplink reference signal and the angle of departure of the downlink reference signal may be considered to be the same, or reciprocal. Therefore, the uplink and downlink channels of the angle in the FDD mode have reciprocity.

3. Reference Signal (RS): also referred to as pilots (pilots), reference sequences, etc. In the embodiment of the present application, the reference signal may be a reference signal for channel measurement. For example, the reference signal may be a channel state information reference signal (CSI-RS) for downlink channel measurement, or may be a Sounding Reference Signal (SRS) for uplink channel measurement. It should be understood that the above-listed reference signals are only examples and should not constitute any limitation to the present application. This application does not exclude the possibility of defining other reference signals in future protocols to achieve the same or similar functions.

In the FDD mode, angles and time delays of uplink and downlink channels are reciprocal, so that K angle vectors and L time delay vectors obtained by uplink channel measurement can be loaded to a downlink reference signal, so that terminal equipment can perform downlink channel measurement based on a received precoding reference signal. Wherein K, L are each integers greater than 1 or equal to 1. Of course, the K angle vectors obtained by measuring the uplink channel may also be loaded to the downlink reference signal, and no limitation is made as to whether the delay vector is to be loaded to the downlink reference signal. Or, L delay vectors obtained by measuring the uplink channel may be loaded to the downlink reference signal, and whether the angle vector is to be loaded to the downlink reference signal is not limited.

The network device may utilize partial reciprocity of FDD, and obtain Channel State Information (CSI) in combination with information that the terminal device feeds back nonreciprocal, to perform signal precoding, so as to improve system performance and reduce complexity and feedback overhead of the terminal device.

To obtain the uplink channel information, the network device may project the uplink channel on a certain spatial domain basis (S) or frequency domain basis (F), as follows: h_UL＝SC_ULF^H。

Wherein H_ULA space-frequency matrix obtained by uplink channel measurement may be represented. S may represent a matrix of one or more (e.g., K) angular vector constructions. F may represent a matrix constructed of one or more (e.g., L) delay vectors. C may represent a coefficient matrix formed by weighting coefficients corresponding to each of the K angle vectors and each of the L delay vectors. The superscript H denotes a conjugate transpose, e.g., F^HRepresenting the conjugate transpose of a matrix (or vector) F.

And the space domain substrate S and the frequency domain substrate F can be used for representing the characteristic space of the uplink channel. In order to obtain the feature space of the uplink channel, the network device may estimate the feature space according to a previously received uplink reference signal, such as an SRS.

In order to obtain the feature space of the uplink channel, the network device may estimate the multiple SRSs and calculate the feature space, as shown in fig. 3.

Within the measurement window, the terminal device transmits multiple SRS to the network device within one or more time windows. If the timing of the intermediate uplink reference signal is adjusted, an error is introduced when the feature space is calculated, which affects the estimation of the uplink channel information, and thus, the overall system performance is also degraded.

In view of this, the present application provides a method for processing or adjusting uplink reference signal timing, so that the uplink reference signal timing is kept unchanged for a period of time, so as to ensure the performance of the CSI acquisition scheme based on the partial reciprocity of FDD.

Various embodiments provided herein will be described in detail below with reference to the accompanying drawings.

Fig. 4 is a schematic interaction diagram of a method 400 for receiving an indication according to an embodiment of the present application. The method 400 may include the following steps.

The terminal device receives 410 the first indication information from the network device.

The first indication information is used for indicating that the processing of the uplink reference signal timing is activated.

And 420, according to the first indication information, the terminal equipment activates the processing of the uplink reference signal timing.

It can be understood that the terminal device activates processing of the uplink reference signal timing according to the first indication information. Exemplarily, the first indication information may also be referred to as an activation command.

Optionally, the embodiment of the present application further provides at least two ways, so as to deactivate processing of uplink reference signal timing.

In the mode 1, the terminal equipment deactivates or stops processing the timing of the uplink reference signal according to the deactivation command.

In this manner, method 400 may also include step 430 and step 440.

430, the terminal device receives second indication information from the network device, where the second indication information is used to indicate that processing of the uplink reference signal timing is deactivated.

And 440, according to the second indication information, the terminal equipment deactivates the processing of the uplink reference signal timing.

That is, the terminal device may deactivate the processing of the uplink reference signal timing based on the second indication information sent by the network device. This second indication information may also be referred to as a deactivation command, for example.

In mode 2, the terminal device deactivates or stops processing the timing of the uplink reference signal according to the activated time information.

In one possible embodiment, the activation duration may be predefined or preconfigured by the network device. After starting to activate the timing processing of the uplink reference signal, the terminal equipment activates the timing processing of the uplink reference signal within the activation duration; and after the activation duration expires, the terminal equipment deactivates or stops processing the timing of the uplink reference signal.

Yet another possible design may be implemented by a timer. After the process of timing the uplink reference signal is started, the timer may be started with a period of time as a time length. During the running period of the timer, the terminal equipment activates the processing of the timing of the uplink reference signal; and after the timer expires, the terminal equipment deactivates or stops processing the timing of the uplink reference signal.

The duration of activation and the start time of activation are described in detail below.

It should be understood that the foregoing mode 1 and mode 2 are only exemplary, and the embodiment of the present application is not limited thereto, and any mode that can deactivate or stop the processing of the uplink reference signal timing after the terminal device has a period of time falls within the protection scope of the embodiment of the present application.

Optionally, the processing of the uplink reference signal timing may include at least the following two schemes:

scheme 1, uplink reference signal timing is kept unchanged in one or more time windows;

in scheme 2, the timing adjustment of the uplink reference signal is reported in one or more time windows.

The above two schemes are described in detail below.

In scheme 1, the uplink reference signal timing remains unchanged for one or more time windows.

That is, the network device may send, to the terminal device, first indication information for indicating the terminal device to keep the uplink reference signal timing unchanged for one or more time windows. After receiving the first indication information, the terminal device does not adjust the timing of the uplink reference signal within one or more time windows.

Wherein the one or more time windows may be measurement windows. That is, the uplink reference signal timing is kept constant within the measurement window.

Illustratively, the measurement window may be pre-set, as specified by a protocol; alternatively, the network device may be configured, but is not limited thereto.

Regarding the start time and the end time of the measurement window, two cases are described.

Case 1, one time window is taken as an example.

It is assumed that the network device sends first indication information to the terminal device, where the first indication information is used to indicate the terminal device, and the uplink reference signal timing is kept unchanged within a time window.

The uplink reference signal is taken as the SRS, as shown in fig. 5. The network equipment sends the first indication information to the terminal equipment. After receiving the first indication information, the terminal device keeps the timing of the uplink reference signal unchanged, i.e. the SRS timing is unchanged.

Alternatively, as shown in fig. 5. The network device may send the second indication information to the terminal device. After the terminal device receives the second indication information, the timing of the uplink reference signal is variable, that is, the timing of the SRS is variable.

It should be understood that in the embodiment of the present application, the uplink reference signal timing is variable, which means that the terminal device no longer keeps the uplink reference signal timing unchanged, and does not mean that the uplink reference signal timing is necessarily changed. Whether the timing of the uplink reference signal changes may also be influenced by other factors, and the embodiment of the present application is not limited.

The start time and the end time of the measurement window in case 1 are explained below, respectively.

1. The start time of the window is measured.

Then, the starting time unit of the time window may be any one of the following: the time unit of the terminal equipment receiving the first indication information, the Nth time unit of the terminal equipment after receiving the first indication information, and the time unit of the terminal equipment after receiving the first indication information and sending the Kth uplink reference signal. Wherein N and K are positive integers.

In a possible design, after receiving the first indication information, the terminal device may keep the uplink reference signal timing unchanged at a time unit when the first indication information is received.

In another possible design, after receiving the first indication information, the terminal device may start at an nth time unit after receiving the first indication information, and keep the timing of the uplink reference signal unchanged.

In another possible design, after receiving the first indication information, the terminal device may keep the timing of the uplink reference signal unchanged starting in the time unit of sending the kth uplink reference signal. It is understood that the K-th time may be counted after receiving the first indication information from the terminal device. In other words, after receiving the first indication information, the terminal device does not immediately start to keep the timing of the uplink reference signal unchanged, but starts to send the uplink reference signal at the kth time, for example, the first time, and keeps the timing of the uplink reference signal unchanged.

2. The end time of the window is measured.

Then, the ending time unit of the time window may be any one of the following: the time unit of the terminal equipment receiving the second indication information, the Y time unit of the terminal equipment after receiving the second indication information, the time unit of the terminal equipment after Z time units, the L time unit of the terminal equipment after the starting time unit of the time window, the time unit of the terminal equipment after J time units, and the time unit of sending the M-th uplink reference signal after receiving the first indication information or after activating the timing processing of the uplink reference signal. Wherein L, J and M are positive integers.

In a possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the processing of the timing of the uplink reference signal may be deactivated or stopped in a time unit when the second indication information is received, that is, the timing of the uplink reference signal is no longer kept unchanged, or the timing of the uplink reference signal is variable.

In another possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the processing of the timing of the uplink reference signal may be deactivated or stopped Y time units after receiving the second indication information, that is, the timing of the uplink reference signal is no longer kept unchanged, or the timing of the uplink reference signal is variable.

In another possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, after receiving the second indication information, Z time units are passed to deactivate or stop the processing of the timing of the uplink reference signal, that is, the timing of the uplink reference signal is no longer kept unchanged, or the timing of the uplink reference signal is variable.

In yet another possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the processing of the timing of the uplink reference signal may be deactivated or stopped in the lth time unit after the starting time unit of the time window, that is, the timing of the uplink reference signal is no longer kept unchanged, or the timing of the uplink reference signal is variable.

In other words, from a length perspective, the uplink reference signal timing is kept constant for L time units from the starting time unit of the time window.

For example, the L time units may also be understood as the activation duration or the time length of the timer as described in manner 2 above.

In yet another possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the terminal device may deactivate or stop processing the timing of the uplink reference signal in a time unit after J time units have elapsed after the starting time unit of the time window, that is, the timing of the uplink reference signal is no longer kept unchanged, or the timing of the uplink reference signal is variable.

In other words, from a length point of view, the uplink reference signal timing is kept unchanged for (J +1) time units from the starting time unit of the time window.

By way of example, the (J +1) time units can also be understood as the activation duration or the time length of the timer as described in manner 2 above.

In another possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the terminal device may send the time unit of the mth uplink reference signal after receiving the first indication information, to deactivate or stop the processing of the timing of the uplink reference signal, that is, the timing of the uplink reference signal is no longer kept unchanged, or the timing of the uplink reference signal is variable. That is, the mth time unit for transmitting the uplink reference signal may be counted from the reception of the first indication information.

In another possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the terminal device may send the time unit of the mth uplink reference signal after activating the processing of the timing of the uplink reference signal, and deactivate or stop the processing of the timing of the uplink reference signal, that is, no longer keep the timing of the uplink reference signal unchanged, or the timing of the uplink reference signal is changeable. That is, the mth time may be counted from after the terminal device activates the processing of the uplink reference signal timing.

It should be understood that the several possible designs described above are merely exemplary, and any variations falling within the scope of the embodiments of the present application are possible.

Case 2, a plurality of time windows is taken as an example.

It is assumed that the network device sends first indication information to the terminal device, where the first indication information is used to indicate the terminal device, and the uplink reference signal timing is kept unchanged in multiple time windows.

The uplink reference signal is taken as the SRS, as shown in fig. 6. The network equipment sends the first indication information to the terminal equipment. After receiving the first indication information, the terminal device keeps the timing of the uplink reference signal unchanged, i.e. the SRS timing is unchanged, in a plurality of time windows. The uplink reference signal timing, i.e., the SRS timing, may be variable during times outside the plurality of time windows.

Alternatively, as shown in fig. 6. The network device may send the second indication information to the terminal device. After the terminal device receives the second indication information, the timing of the uplink reference signal is variable, that is, the timing of the SRS is variable.

The start time and the end time of the measurement window in case 2 are explained below, respectively.

1. The start time of the window is measured.

Then, the starting time unit of the first time window of the plurality of time windows may be any one of: the time unit of the terminal equipment receiving the first indication information, the S-th time unit of the terminal equipment receiving the first indication information, and the time unit of the terminal equipment receiving the first indication information and sending the P-th uplink reference signal. Wherein S and P are positive integers.

For example, S and P may be predetermined, as prescribed by the protocol; or, it may be network device configured; alternatively, the predetermined value may be predetermined, and is not limited thereto.

In another possible design, after receiving the first indication information, the terminal device may start at the S-th time unit after receiving the first indication information, and keep the timing of the uplink reference signal unchanged.

In another possible design, after receiving the first indication information, the terminal device may keep the timing of the uplink reference signal unchanged starting from the time unit when the uplink reference signal is transmitted for the pth time. It is understood that the P-th time may be counted after receiving the first indication information from the terminal device. In other words, the terminal device does not start to keep the timing of the uplink reference signal unchanged immediately after receiving the first indication information, but starts to send the uplink reference signal at the pth time, e.g., the first time, and keeps the timing of the uplink reference signal unchanged.

For example, a1, a2 may be pre-set, as prescribed by the protocol; or, it may be network device configured; alternatively, the predetermined value may be predetermined, and is not limited thereto.

2. The end time of the window is measured.

Then, the ending time unit of the first time window of the plurality of time windows may be any one of: the first time unit is a Tth time unit after the starting time unit of the first time window, the time unit after the starting time unit of the first time window passes R time units, and the time unit for sending the uplink reference signal for the Q-th time after receiving the first indication information or after activating the processing of the uplink reference signal timing. Wherein T, R and Q are positive integers.

Illustratively, T, R and Q may be pre-set, as prescribed by the protocol; or, it may be network device configured; alternatively, the predetermined value may be predetermined, and is not limited thereto.

In a possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the processing of the timing of the uplink reference signal may be deactivated or stopped in the T-th time unit after the starting time unit of the first time window, that is, the timing of the uplink reference signal is not kept unchanged any more, or the timing of the uplink reference signal is changeable until the second time window starts.

In other words, the timing of the uplink reference signal is kept unchanged for T time units from the start time unit of the first time window until the timing of the uplink reference signal is kept unchanged for the second time window.

For example, the T time units may also be understood as the activation duration or the time length of the timer as described in manner 2 above.

It should be understood that there is no limitation as to whether or how long the interval is between adjacent time windows. Take the first time window and the second time window as an example. The first time window may end and the second time window may begin, or the first time window may end and the second time window may begin for a predetermined or configured duration.

In another possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the terminal device may deactivate or stop processing the timing of the uplink reference signal in a time unit after R time units have elapsed after the starting time unit of the first time window, that is, the timing of the uplink reference signal is not kept unchanged any more, or the timing of the uplink reference signal is changeable until the second time window starts.

In other words, the uplink reference signal timing is kept unchanged for (R +1) time units from the start time unit of the first time window until the uplink reference signal timing is kept unchanged for the second time window.

By way of example, the (R +1) time units can also be understood as the activation duration or the time length of the timer as described in manner 2 above.

In another possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the terminal device may deactivate or stop processing the timing of the uplink reference signal in the time unit that transmits the uplink reference signal for the Q-th time after receiving the first indication information, that is, the timing of the uplink reference signal is not kept unchanged any more, or the timing of the uplink reference signal is changeable until the second time window starts. That is, the Q-th time may be counted after the first indication information is received from the terminal device.

In another possible design, after the terminal device starts to keep the timing of the uplink reference signal unchanged, the terminal device may deactivate or stop the processing of the timing of the uplink reference signal by sending the time unit of the qth uplink reference signal after activating the processing of the timing of the uplink reference signal, that is, the timing of the uplink reference signal is not kept unchanged, or the timing of the uplink reference signal is variable. That is, the Q-th time may be counted after the terminal device activates the processing of the uplink reference signal timing.

For example, B1, B2 may be pre-set, as prescribed by the protocol; or, it may be network device configured; alternatively, the predetermined value may be predetermined, and is not limited thereto.

In case 2, a plurality of time windows are involved. For example, the time lengths of the respective time windows may be equal.

Based on the scheme 1, the terminal equipment keeps the timing of the uplink reference signal unchanged for a period of time by restricting or controlling the adjustment behavior of the timing of the uplink reference signal of the terminal equipment by the network equipment, so that the influence on the calculation of the feature space can be avoided, and the performance of the CSI acquisition scheme based on the partial reciprocity of the FDD can be ensured.

Scheme 2 is introduced below.

That is, the network device may send first indication information to the terminal device, where the first indication information is used to indicate the terminal device to report adjustment of timing of the uplink reference signal in one or more time windows.

The network device may compensate for the adjustment of the timing of the uplink reference signal according to the adjustment of the timing of the uplink reference signal reported by the terminal device, so that the timing of the uplink reference signal remains unchanged within one or more time windows.

Regarding the start time and the end time of the measurement window, scheme 2 is similar to scheme 1, and specific reference may be made to the description in scheme 1.

Based on the scheme 2, the terminal device reports the timing adjustment within a period of time by constraining or controlling the adjustment behavior of the uplink reference signal timing of the terminal device through the network device, so that the network device can compensate the timing adjustment, thereby keeping the uplink reference signal timing unchanged, avoiding the influence on the feature space calculation, and ensuring the performance of the CSI acquisition scheme based on the partial reciprocity of FDD.

Two schemes for processing the uplink reference signal timing are exemplarily described above, and any scheme that can keep the uplink reference signal timing unchanged for a certain time falls into the scope of the embodiments of the present application.

Alternatively, the first indication information or the second indication information may be indicated in an explicit manner.

Illustratively, the first indication information or the second indication information may be carried in one of radio resource control signaling, Medium Access Control (MAC) layer signaling, and physical layer signaling, or a combination of at least two of them. The radio resource control signaling includes, for example, Radio Resource Control (RRC) signaling; the MAC layer signaling includes, for example, a MAC Control Element (CE); the physical layer signaling includes, for example, Downlink Control Information (DCI).

Alternatively, the first indication information or the second indication information may be indicated by a hidden manner.

For example, the first indication information is taken as an example.

For example, the first indication information may be implemented based on active signaling of a CSI acquisition scheme for FDD partial reciprocity.

That is, after receiving the activation signaling of the CSI acquisition scheme based on the FDD partial reciprocity, the terminal device activates the processing of the uplink reference signal timing. For example, after receiving the activation signaling of the CSI acquisition scheme based on the FDD partial reciprocity, the terminal device keeps the uplink reference signal timing unchanged in one or more time windows. For another example, after receiving an activation signaling of the CSI acquisition scheme based on the partial reciprocity of the FDD, the terminal device reports the adjustment of the timing of the uplink reference signal in one or more time windows.

For yet another example, the first indication information may be implemented based on activation signaling of a feature space scheme.

That is, after receiving the activation signaling based on the feature space scheme, the terminal device activates the processing of the uplink reference signal timing. For example, after receiving the activation signaling based on the feature space scheme, the terminal device keeps the uplink reference signal timing unchanged in one or more time windows. For another example, after receiving the activation signaling based on the feature space scheme, the terminal device reports the adjustment of the timing of the uplink reference signal in one or more time windows.

As another example, the second indication information is taken as an example.

For example, the second indication information may be implemented based on deactivation signaling of a CSI acquisition scheme for FDD partial reciprocity.

That is to say, after receiving the deactivation signaling of the CSI acquisition scheme based on the partial reciprocity of FDD, the terminal device deactivates or stops processing the timing of the uplink reference signal. For example, after receiving the deactivation signaling of the CSI acquisition scheme based on the reciprocity of the FDD part, the terminal device does not keep the timing of the uplink reference signal unchanged. For another example, after receiving the deactivation signaling of the CSI acquisition scheme based on the partial reciprocity of the FDD, the terminal device may not report the adjustment of the uplink reference signal timing any more.

For yet another example, the second indication information may be implemented based on deactivation signaling of the feature space scheme.

That is, after receiving the deactivation signaling based on the feature space scheme, the terminal device deactivates or stops processing the timing of the uplink reference signal. For example, after receiving the deactivation signaling based on the feature space scheme, the terminal device does not keep the timing of the uplink reference signal unchanged. For another example, after receiving the deactivation signaling based on the feature space scheme, the terminal device may not report the adjustment of the uplink reference signal timing any more.

It should be appreciated that in the embodiment illustrated by method 400, the uplink reference signal may be replaced with an SRS.

In the method and the device, the terminal equipment keeps the timing of the uplink reference signal unchanged within a period of time by restricting or controlling the timing adjustment behavior of the uplink reference signal of the terminal equipment through the network equipment, so that the influence on the calculation of the feature space can be avoided, and the performance of a CSI acquisition scheme based on the partial reciprocity of FDD can be ensured.

In addition, in the present application, the terminal device reports the timing adjustment within a period of time by constraining or controlling the adjustment behavior of the uplink reference signal timing of the terminal device by the network device, so that the network device can compensate the timing adjustment, thereby keeping the uplink reference signal timing unchanged, avoiding the influence on the feature space calculation, and also ensuring the performance of the CSI acquisition scheme based on the FDD partial reciprocity.

The various embodiments described herein may be implemented as stand-alone solutions or combined in accordance with inherent logic and are intended to fall within the scope of the present application.

It is to be understood that, in the above-described method embodiments, the method and the operation implemented by the terminal device may also be implemented by a component (e.g., a chip or a circuit) available for the terminal device, and the method and the operation implemented by the network device may also be implemented by a component (e.g., a chip or a circuit) available for the network device.

The method provided by the embodiment of the present application is described in detail above with reference to fig. 4 to 6. Hereinafter, the communication device according to the embodiment of the present application will be described in detail with reference to fig. 7 to 10. It should be understood that the description of the apparatus embodiments corresponds to the description of the method embodiments, and therefore, for brevity, details are not repeated here, since the details that are not described in detail may be referred to the above method embodiments.

The above-mentioned scheme provided by the embodiment of the present application is introduced mainly from the perspective of interaction between network elements. It is understood that each network element, for example, the transmitting end device or the receiving end device, includes a corresponding hardware structure and/or software module for performing each function in order to implement the above functions. Those of skill in the art would appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is performed as hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiment of the present application, the functional modules may be divided according to the above method example for the transmitting end device or the receiving end device, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, in the embodiment of the present application, the division of the module is schematic, and is only one logic function division, and there may be another division manner in actual implementation. The following description will be given taking the example of dividing each functional module corresponding to each function.

Fig. 7 is a schematic block diagram of a communication device provided in an embodiment of the present application. As shown, the communication device 700 may include a communication unit 710 and a processing unit 720. The communication unit 710 may communicate with the outside, and the processing unit 720 is used to perform data processing. The communication unit 710 may also be referred to as a communication interface or a transceiving unit. The communication interface is used for inputting and/or outputting information, and the information comprises at least one of instructions and data. Alternatively, the communication device may be a chip or a system of chips. When the communication device is a chip or a system of chips, the communication interface may be an input/output interface, which may be an input/output interface, an interface circuit, an output circuit, an input circuit, a pin or related circuit on the chip or the system of chips, etc. The processor may also be embodied as a processing circuit or a logic circuit.

In one possible design, the communication apparatus 700 may implement the steps or processes executed by the terminal device corresponding to the above method embodiment, for example, the steps or processes may be executed by the terminal device, or a chip or a circuit or a chip system configured in the terminal device. At this time, the communication apparatus 700 may be referred to as a terminal device. The communication unit 710 is configured to perform transceiving related operations on the terminal device side in the foregoing method embodiments, and the processing unit 720 is configured to perform processing related operations on the terminal device in the foregoing method embodiments.

In one possible implementation, the communication unit 710 is configured to: receiving first indication information from a network device, wherein the first indication information is used for indicating to activate the processing of the uplink reference signal timing; the processing unit 720 is configured to: and activating the processing of the uplink reference signal timing according to the first indication information.

Optionally, the communication unit 710 is further configured to: receiving second indication information from the network equipment, wherein the second indication information is used for indicating that the timing processing of the uplink reference signal is deactivated; the processing unit 720 is further configured to: and deactivating the processing of the uplink reference signal timing according to the second indication information.

Optionally, the processing of the uplink reference signal timing includes: keeping the timing of the uplink reference signal unchanged in one or more time windows; or reporting the adjustment of the timing of the uplink reference signal in one or more time windows.

Optionally, if the timing of the uplink reference signal remains unchanged in a time window or the timing of the uplink reference signal is adjusted in a time window, the starting time unit of the time window is: a time unit receiving the first indication information, or an nth time unit after receiving the first indication information, or a time unit sending a kth uplink reference signal after receiving the first indication information; n and K are positive integers.

Optionally, if the timing of the uplink reference signal remains unchanged in a time window or the timing of the uplink reference signal is adjusted in a time window, the ending time unit of the time window is: a time unit receiving second indication information from the network device, where the second indication information is used to indicate that processing of uplink reference signal timing is deactivated, or an lth time unit after a starting time unit of a time window, or a time unit after J time units have passed after the starting time unit of the time window, or a time unit sending an mth uplink reference signal after receiving the first indication information or after activating processing of uplink reference signal timing; l, J and M are positive integers.

Optionally, if the timing of the uplink reference signal remains unchanged in a plurality of time windows or the timing of the uplink reference signal is reported in a plurality of time windows, the starting time unit of the first time window is: a time unit receiving the first indication information, or an S-th time unit after receiving the first indication information, or a time unit sending a P-th uplink reference signal after receiving the first indication information; s and P are positive integers.

Optionally, if the timing of the uplink reference signal remains unchanged in a plurality of time windows or the timing of the uplink reference signal is reported in a plurality of time windows, the ending time unit of the first time window is: a tth time unit after the start time unit of the first time window, or a time unit after R time units pass after the start time unit of the first time window, or a time unit for transmitting the uplink reference signal for the Q-th time after receiving the first indication information or after activating the timing processing of the uplink reference signal; t, R and Q are positive integers.

Optionally, the first indication information is indicated by an explicit or implicit manner.

Optionally, the second indication information is indicated by explicit or implicit means.

The communication apparatus 700 may implement the steps or the flow corresponding to the steps or the flow executed by the terminal device in the method 400 according to the embodiment of the present application, and the communication apparatus 700 may include a unit for executing the method executed by the terminal device in the method 400 in fig. 4. Also, the units and other operations and/or functions described above in the communication apparatus 700 are respectively for implementing the corresponding flows of the method 400 in fig. 4.

Wherein, when the communication device 700 is configured to execute the method 400 in fig. 4, the communication unit 710 is configured to execute the steps 410 and 430 in the method 400, and the processing unit 720 is configured to execute the steps 420 and 440 in the method 400.

It should be understood that the specific processes of the units for executing the corresponding steps are already described in detail in the above method embodiments, and therefore, for brevity, detailed descriptions thereof are omitted.

It is further understood that the communication unit 710 in the communication apparatus 700 may be implemented by the transceiver 910 in the terminal device 900 shown in fig. 9, and the processing unit 720 in the communication apparatus 700 may be implemented by the processor 920 in the terminal device 900 shown in fig. 9. Wherein the transceiver may comprise a transmitter and/or a receiver, respectively implementing the functions of the transmitting unit and the receiving unit.

It should also be understood that the communication unit 710 in the communication device 700 may also be an input/output interface.

In another possible design, the communication apparatus 700 may implement the steps or processes executed by the network device corresponding to the above method embodiment, for example, the steps or processes may be a network device, or a chip or a circuit or a chip system configured in the network device. At this time, the communication apparatus 700 may be referred to as a network device. The communication unit 710 is configured to perform transceiving related operations on the network device side in the foregoing method embodiments, and the processing unit 720 is configured to perform processing related operations on the network device in the foregoing method embodiments.

In one possible implementation, the processing unit 720 is configured to: generating first indication information, wherein the first indication information is used for indicating to activate the processing of the timing of the uplink reference signal; the communication unit 710 is configured to: and sending the first indication information.

Optionally, the communication unit 710 is further configured to send second indication information, where the second indication information is used to indicate that processing of the uplink reference signal timing is deactivated.

Optionally, the communication unit 710 is further configured to receive the adjustment of the uplink reference signal timing in one or more time windows; the processing unit 720 is further configured to adjust the uplink reference signal timing based on the adjustment of the uplink reference signal timing.

The communication apparatus 700 may implement the steps or the flow corresponding to the steps or the flow executed by the network device in the method 400 according to the embodiment of the present application, and the communication apparatus 700 may include a unit for executing the method executed by the network device in the method 400 in fig. 4. Also, the units and other operations and/or functions described above in the communication apparatus 700 are respectively for implementing the corresponding flows of the method 400 in fig. 4.

Wherein, when the communication device 700 is used to execute the method 400 in fig. 4, the communication unit 710 is operable to execute the steps 410 and 420 in the method 400.

It should also be understood that the communication unit in the communication apparatus 700 can be implemented by the transceiver 1010 in the network device 1000 shown in fig. 10, and the processing unit 720 in the communication apparatus 700 can be implemented by the processor 1020 in the network device 1000 shown in fig. 10.

It should also be understood that the communication unit 710 in the communication device 700 may also be an input/output interface. Wherein the transceiver may comprise a transmitter and/or a receiver, respectively implementing the functions of the transmitting unit and the receiving unit.

Fig. 8 is a further schematic block diagram of a communication device 800 provided by an embodiment of the present application. As shown, the communication device 800 includes a transceiver 810, a processor 820, and a memory 830, wherein the memory 830 stores programs, the processor 820 is configured to execute the programs stored in the memory 830, the execution of the programs stored in the memory 830 enables the processor 820 to perform the relevant processing steps in the above method embodiments, and the execution of the programs stored in the memory 830 enables the processor 820 to control the transceiver 810 to perform the relevant transceiving steps in the above method embodiments.

As an implementation, the communication apparatus 800 is configured to perform the actions performed by the terminal device in the above method embodiment, at this time, the execution of the program stored in the memory 830 causes the processor 820 to perform the processing steps on the terminal device side in the above method embodiment, and the execution of the program stored in the memory 830 causes the processor 820 to control the transceiver 810 to perform the receiving and transmitting steps on the terminal device side in the above method embodiment.

As another implementation, the communication apparatus 800 is configured to perform the actions performed by the network device in the above method embodiment, in this case, the execution of the program stored in the memory 830 causes the processor 820 to perform the processing steps on the network device side in the above method embodiment, and the execution of the program stored in the memory 830 causes the processor 820 to control the transceiver 810 to perform the receiving and transmitting steps on the network device side in the above method embodiment.

The embodiment of the present application further provides a communication apparatus 900, where the communication apparatus 900 may be a terminal device or a chip. The communication apparatus 900 may be used to perform the actions performed by the terminal device in the above-described method embodiments.

When the communication apparatus 900 is a terminal device, fig. 9 shows a simplified structure diagram of the terminal device. As shown in fig. 9, the terminal device includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used for processing communication protocols and communication data, controlling the terminal equipment, executing software programs, processing data of the software programs and the like. The memory is used primarily for storing software programs and data. The radio frequency circuit is mainly used for converting baseband signals and radio frequency signals and processing the radio frequency signals. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are used primarily for receiving data input by a user and for outputting data to the user. It should be noted that some kinds of terminal devices may not have input/output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs baseband signals to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signals and sends the radio frequency signals to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal equipment, the radio frequency circuit receives radio frequency signals through the antenna, converts the radio frequency signals into baseband signals and outputs the baseband signals to the processor, and the processor converts the baseband signals into the data and processes the data. For ease of illustration, only one memory and processor are shown in FIG. 9, and one or more processors and one or more memories may be present in an actual end device product. The memory may also be referred to as a storage medium or a storage device, etc. The memory may be provided independently of the processor, or may be integrated with the processor, which is not limited in this embodiment.

In the embodiment of the present application, the antenna and the radio frequency circuit having the transceiving function may be regarded as a transceiving unit of the terminal device, and the processor having the processing function may be regarded as a processing unit of the terminal device.

As shown in fig. 9, the terminal device includes a transceiving unit 910 and a processing unit 920. The transceiving unit 910 may also be referred to as a transceiver, a transceiving means, etc. The processing unit 920 may also be referred to as a processor, a processing board, a processing module, a processing device, or the like. Alternatively, a device for implementing a receiving function in the transceiving unit 910 may be regarded as a receiving unit, and a device for implementing a transmitting function in the transceiving unit 910 may be regarded as a transmitting unit, that is, the transceiving unit 910 includes a receiving unit and a transmitting unit. A transceiver unit may also sometimes be referred to as a transceiver, transceiving circuitry, or the like. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like. A transmitting unit may also sometimes be referred to as a transmitter, or a transmitting circuit, etc.

For example, in one implementation, the processing unit 920 is configured to perform steps 420 and 440 in fig. 4, and/or the processing unit 920 is further configured to perform other processing steps on the terminal device side in this embodiment of the present application. The transceiving unit 910 is further configured to perform steps 410 and 430 shown in fig. 4, and/or the transceiving unit 910 is further configured to perform other transceiving steps on the terminal device side.

It should be understood that fig. 9 is only an example and not a limitation, and the terminal device including the transceiving unit and the processing unit may not depend on the structure shown in fig. 9.

When the communication device 900 is a chip, the chip includes a transceiving unit and a processing unit. The transceiving unit can be an input/output circuit or a communication interface; the processing unit may be a processor or a microprocessor or an integrated circuit integrated on the chip.

The embodiment of the present application further provides a communication apparatus 1000, where the communication apparatus 1000 may be a network device or a chip. The communications apparatus 1000 may be used to perform the actions performed by the network device in the above-described method embodiments.

When the communication apparatus 1000 is a network device, it is, for example, a base station. Fig. 10 shows a simplified base station structure. The base station includes

portions

1010 and 1020. The 1010 part is mainly used for receiving and transmitting radio frequency signals and converting the radio frequency signals and baseband signals; the 1020 section is mainly used for baseband processing, base station control, and the like. Portion 1010 may be generally referred to as a transceiver unit, transceiver, transceiving circuitry, or transceiver, etc. Part 1020 is generally a control center of the base station, and may be generally referred to as a processing unit, configured to control the base station to perform the processing operation on the network device side in the foregoing method embodiment.

The transceiver unit of part 1010, which may also be referred to as a transceiver or transceiver, includes an antenna and a radio frequency unit, where the radio frequency unit is mainly used for radio frequency processing. Alternatively, a device for implementing a receiving function in the part 1010 may be regarded as a receiving unit, and a device for implementing a transmitting function may be regarded as a transmitting unit, that is, the part 1010 includes a receiving unit and a transmitting unit. A receiving unit may also be referred to as a receiver, a receiving circuit, or the like, and a transmitting unit may be referred to as a transmitter, a transmitting circuit, or the like.

Section 1020 may include one or more boards, each of which may include one or more processors and one or more memories. The processor is used to read and execute programs in the memory to implement baseband processing functions and control of the base station. If a plurality of single boards exist, the single boards can be interconnected to enhance the processing capacity. As an alternative implementation, multiple boards may share one or more processors, multiple boards may share one or more memories, or multiple boards may share one or more processors at the same time.

For example, in one implementation, the transceiver unit of part 1010 is used to perform the transmitting operation on the network device side in steps 410 and 420 shown in fig. 4, and/or the transceiver unit of part 1010 is also used to perform other transceiving steps on the network device side in the embodiment of the present application. The processing unit of the part 1020 is configured to execute the processing steps on the network device side in the embodiment of the present application.

It should be understood that fig. 10 is only an example and not a limitation, and the network device including the transceiving unit and the processing unit may not depend on the structure shown in fig. 10.

When the communication device 1000 is a chip, the chip includes a transceiver unit and a processing unit. The transceiver unit can be an input/output circuit and a communication interface; the processing unit is a processor or a microprocessor or an integrated circuit integrated on the chip.

The network device is not limited to the above-described embodiment, and may be in another embodiment: for example: the system comprises an AAU, a CU node and/or a DU node, or a BBU and an Adaptive Radio Unit (ARU), or a BBU; the CPE may be a Customer Premise Equipment (CPE) or another type, and the present application is not limited thereto.

The above-mentioned CUs and/or DUs may be used to perform the actions described in the previous method embodiments as being implemented internally by the network device, whereas the AAU may be used to perform the actions described in the previous method embodiments as being sent to or received from the terminal device by the network device. Please refer to the description of the previous embodiment of the method, which is not repeated herein.

The embodiment of the application also provides a processing device which comprises a processor and an interface. The processor may be adapted to perform the method of the above-described method embodiments.

It should be understood that the processing means may be a chip. For example, the processing device may be a Field Programmable Gate Array (FPGA), an Application Specific Integrated Circuit (ASIC), a system on chip (SoC), a Central Processing Unit (CPU), a Network Processor (NP), a digital signal processing circuit (DSP), a Microcontroller (MCU), a Programmable Logic Device (PLD), or other integrated chips.

In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The steps of a method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware processor, or may be implemented by a combination of hardware and software modules in a processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. To avoid repetition, it is not described in detail here.

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

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

According to the method provided by the embodiment of the present application, the present application further provides a computer program product, which includes: computer program code which, when run on a computer, causes the computer to perform the method of any one of the embodiments shown in figures 4 to 6.

According to the method provided by the embodiment of the present application, a computer-readable medium is further provided, and the computer-readable medium stores program codes, and when the program codes are executed on a computer, the computer is caused to execute the method of any one of the embodiments shown in fig. 4 to 6.

According to the method provided by the embodiment of the present application, the present application further provides a system, which includes the foregoing one or more terminal devices and one or more network devices.

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

The network device in the foregoing various apparatus embodiments corresponds to the terminal device or the network device in the terminal device and method embodiments, and the corresponding module or unit executes the corresponding steps, for example, the communication unit (transceiver) executes the steps of receiving or transmitting in the method embodiments, and other steps besides transmitting and receiving may be executed by the processing unit (processor). The functions of the specific elements may be referred to in the respective method embodiments. The number of the processors may be one or more.

As used in this specification, the terms "component," "module," "system," and the like are intended to refer to a computer-related entity, either hardware, firmware, a combination of hardware and software, or software in execution. For example, a component may be, but is not limited to being, a process running on a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a computing device and the computing device can be a component. One or more components can reside within a process and/or thread of execution and a component may be localized on one computer and/or distributed between two or more computers. In addition, these components can execute from various computer readable media having various data structures stored thereon. The components may communicate by way of local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from two components interacting with another component in a local system, distributed system, and/or across a network such as the internet with other systems by way of the signal).

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

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

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

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

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

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

Claims

1. A method of receiving an indication, the method comprising:

receiving first indication information from a network device, wherein the first indication information is used for indicating to activate the processing of uplink reference signal timing;

and activating the processing of the uplink reference signal timing according to the first indication information.

2. The method of claim 1, further comprising:

receiving second indication information from the network device, where the second indication information is used to indicate that the processing of the uplink reference signal timing is deactivated;

and deactivating the processing of the timing of the uplink reference signal according to the second indication information.

3. The method according to claim 1 or 2, wherein the processing of the uplink reference signal timing comprises:

the uplink reference signal timing remains unchanged for one or more time windows; or

Reporting the adjustment of the timing of the uplink reference signal in one or more time windows.

4. The method of claim 3, wherein if the timing of the uplink reference signal remains unchanged for a time window or an adjustment of the timing of the uplink reference signal is reported for a time window,

the starting time unit of the time window is as follows:

time unit of receiving the first indication information, or

The Nth time unit after receiving the first indication information, or

After receiving the first indication information, sending a time unit of the uplink reference signal for the Kth time;

n and K are positive integers.

5. The method according to claim 3 or 4, wherein if the timing of the uplink reference signal remains unchanged within a time window or an adjustment of the timing of the uplink reference signal is reported within a time window,

the unit of the ending time of the time window is as follows:

a time unit receiving second indication information from the network device, the second indication information being used for indicating that the processing of the uplink reference signal timing is deactivated, or

The L time unit after the starting time unit of the time window, or

Time units after J time units after the start time unit of the time window, or

After receiving the first indication information or after activating the processing of the uplink reference signal timing, sending a time unit of the uplink reference signal for the Mth time;

l, J and M are positive integers.

6. The method of claim 3, wherein if the timing of the uplink reference signal remains unchanged for multiple time windows or if the adjustment of the timing of the uplink reference signal is reported for multiple time windows,

the starting time unit of the first time window is:

time unit of receiving the first indication information, or

The S time unit after receiving the first indication information, or

After receiving the first indication information, sending a time unit of the uplink reference signal for the P time;

s and P are positive integers.

7. The method of claim 3 or 6, wherein if the timing of the uplink reference signal remains unchanged for multiple time windows or if the adjustment of the timing of the uplink reference signal is reported for multiple time windows,

the ending time unit of the first time window is:

the Tth time unit after the starting time unit of the first time window, or

A time unit after R time units have elapsed since the start time unit of the first time window, or

After receiving the first indication information or after activating the processing of the uplink reference signal timing, sending a time unit of the uplink reference signal for the Q-th time;

t, R and Q are positive integers.

8. The method according to any one of claims 1 to 7, wherein the first indication information is indicated explicitly or implicitly.

9. The method of claim 2, wherein the second indication information is explicitly or implicitly indicated.

10. A method of transmitting an indication, the method comprising:

generating first indication information, wherein the first indication information is used for indicating to activate the processing of the timing of the uplink reference signal;

and sending the first indication information.

11. The method of claim 10, further comprising:

and sending second indication information, wherein the second indication information is used for indicating that the processing of the timing of the uplink reference signal is deactivated.

12. The method according to claim 10 or 11, characterized in that the method further comprises:

receiving an adjustment of the uplink reference signal timing within one or more time windows;

adjusting the uplink reference signal timing based on the adjustment of the uplink reference signal timing.

13. The method according to any one of claims 10 to 12, wherein the first indication information is indicated explicitly or implicitly.

14. The method of claim 11, wherein the second indication information is explicitly or implicitly indicated.

15. A communication device, comprising a communication unit and a processing unit,

the communication unit is configured to receive first indication information from a network device, where the first indication information is used to indicate that processing of uplink reference signal timing is activated;

and the processing unit is used for activating the timing processing of the uplink reference signal according to the first indication information.

16. The apparatus of claim 15, wherein the communication unit is further configured to,

the processing unit is further configured to,

17. The device according to claim 15 or 16, characterized in that the processing unit is specifically configured to,

18. The apparatus of claim 17, wherein if the UL reference signal timing remains unchanged for a time window or an adjustment of the UL reference signal timing is reported for a time window,

the starting time unit of the time window is as follows:

time unit of receiving the first indication information, or

The Nth time unit after receiving the first indication information, or

n and K are positive integers.

19. The apparatus of claim 17 or 18, wherein if the uplink reference signal timing remains unchanged for a time window or an adjustment of the uplink reference signal timing is reported for a time window,

the unit of the ending time of the time window is as follows:

The L time unit after the starting time unit of the time window, or

Time units after J time units after the start time unit of the time window, or

l, J and M are positive integers.

20. The apparatus of claim 17, wherein if the uplink reference signal timing remains unchanged for multiple time windows or an adjustment of the uplink reference signal timing is reported for multiple time windows,

the starting time unit of the first time window is:

time unit of receiving the first indication information, or

The S time unit after receiving the first indication information, or

s and P are positive integers.

21. The apparatus of claim 17 or 20, wherein if the UL reference signal timing remains unchanged for a plurality of time windows or an adjustment of the UL reference signal timing is reported for a plurality of time windows,

the ending time unit of the first time window is:

the Tth time unit after the starting time unit of the first time window, or

t, R and Q are positive integers.

22. The apparatus according to any one of claims 15 to 21, wherein the first indication information is indicated explicitly or implicitly.

23. The apparatus of claim 16, wherein the second indication information is explicitly or implicitly indicated.

24. A communication device, comprising a communication unit and a processing unit,

the processing unit is configured to generate first indication information, where the first indication information is used to indicate that processing on uplink reference signal timing is activated;

the communication unit is configured to send the first indication information.

25. The apparatus of claim 24, wherein the communication unit is further configured to,

26. The apparatus of claim 24 or 25,

the communications unit is further configured to receive an adjustment of the uplink reference signal timing within one or more time windows;

the processing unit is further configured to adjust the uplink reference signal timing based on the adjustment of the uplink reference signal timing.

27. The apparatus according to any one of claims 24 to 26, wherein the first indication information is indicated explicitly or implicitly.

28. The apparatus of claim 25, wherein the second indication information is explicitly or implicitly indicated.

29. A communications apparatus, comprising:

a memory for storing computer instructions;

a processor for executing computer instructions stored in the memory to cause the communication device to perform the method of any of claims 1 to 9 or to cause the communication device to perform the method of any of claims 10 to 14.

30. A communications apparatus, comprising:

a communication interface for inputting and/or outputting information;

a processor for executing computer instructions to cause the communication device to perform the method of any of claims 1 to 9 or to cause the communication device to perform the method of any of claims 10 to 14.

31. A computer-readable storage medium, having stored thereon a computer program which, when executed by a communication apparatus, causes the communication apparatus to perform the method of any one of claims 1 to 9 or causes the communication apparatus to perform the method of any one of claims 10 to 14.