WO2021238591A1

WO2021238591A1 - Reference signal configuration updating method and apparatus

Info

Publication number: WO2021238591A1
Application number: PCT/CN2021/091731
Authority: WO
Inventors: 谢曦; 常俊仁; 邝奕如
Original assignee: 华为技术有限公司
Priority date: 2020-05-25
Filing date: 2021-04-30
Publication date: 2021-12-02
Also published as: CN113727437A

Abstract

The present application is applied to the technical field of wireless communications, and provided therein are a reference signal configuration updating method and apparatus. The method comprises: receiving first indication information, the first indication information being used to indicate that the configuration of a reference signal has changed; and after receiving the first indication information, determining first configuration information failure in response to the first indication information, the first configuration information comprising the configuration of the reference signal. After a first duration of receiving the first indication information, acquiring second configuration information, the second configuration information comprising the configuration of the reference signal. After receiving the first indication information, by determining first configuration failure, and acquiring the second configuration information after the first duration of receiving the first indication information, it can be ensured that a terminal device stops using an outdated configuration when a network device sends the second configuration information, preventing the terminal device still using first configuration information to acquire an outdated configuration of a reference signal. Thus, the delay between a network device discovering that second configuration information requires sending and actually beginning to send the second configuration information is shortened.

Description

Method and device for updating configuration of reference signal

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office, the application number is 202010449435.X, and the application name is "a communication method and communication device" on May 25, 2020, the entire content of which is incorporated by reference In this application.

Technical field

This application relates to the field of wireless communication technologies, and in particular to a method and device for updating the configuration of a reference signal.

Background technique

In a wireless communication system, a reference signal (Reference Signal, RS) is also called a pilot signal, which is a known signal provided by the transmitting end to the receiving end for channel estimation or channel detection. For the terminal equipment in the RRC idle state or the RRC inactive state, when the configuration information of the reference signal changes, the update process is rigid for the usual configuration information update mechanism of the reference signal. It cannot meet the update process of reference signals with higher demands for flexibility and timeliness.

Summary of the invention

The embodiments of the present application provide a method and device for updating the configuration of a reference signal, so as to improve the flexibility of updating the configuration of the reference signal.

A first aspect provides a method for updating the configuration of a reference signal, including: receiving first indication information, where the first indication information is used to indicate that the configuration of the reference signal has changed; after receiving the first indication information, in response to the first indication information, It is determined that the first configuration information is invalid, and the first configuration information includes the configuration of the reference signal. The manner of determining that the first configuration is invalid may be that the terminal device stops using the configuration of the reference signal in the first configuration information. Alternatively, the terminal device discards the configuration of the reference signal in the first configuration information. At this time, the terminal device no longer saves the configuration of the reference signal in the first configuration information. The reference signal can be a channel state information reference signal or a tracking reference signal

After receiving the first duration of the first indication information, the second configuration information is acquired, where the second configuration information includes the configuration of the reference signal. The first duration may be sent by the network device or preset by the protocol. The time when the terminal device receives the first indication information is used as a starting point for calculating the first time length, and the time when the second configuration information is acquired is determined according to the first time length. The process of determining the time to acquire the second configuration information according to the first duration includes two cases. In one case, the second configuration information is acquired at a time when the first time period elapses after the terminal device receives the first indication information. In another case, the second configuration information is acquired after the first time period has elapsed after the terminal device receives the first indication information.

In the method for updating the configuration of the reference signal provided by the embodiment of the present application, after the terminal device receives the first indication information, by determining that the first configuration is invalid, it can be ensured that the terminal device disables the outdated configuration when the network device sends the second configuration information Information to prevent the terminal device from still using the first configuration information to obtain outdated reference signals. At the same time, the network device can send the second configuration information at the earliest possible time, update the configuration of the reference signal, and shorten the time delay between the network device discovering the need to send the second configuration information and actually starting to send the second configuration information. By setting the first duration, the terminal device obtains the second configuration information after receiving the first duration of the first indication information, which can ensure the smooth acquisition of the second configuration information by the terminal device.

In one case, the configuration part of the reference signal is changed. At this time, it can be determined that a part of the first configuration is invalid. The invalid part of the first configuration information may be indicated by the first indication information, or the invalid part of the first configuration information may be a different part from the second configuration information. As a result, for the terminal device, the effective part can continue to be used without updating, thereby saving system resources.

The second configuration information can be obtained through system information. The second configuration information includes the configuration of the reference signal, and the network device may use the system information to send the configuration of the reference signal to the terminal device. For the case where the system information is used to send the second configuration information, the reference signal configuration update method of the present application is adopted, and the configuration update of the reference signal may not be restricted by the system information modification period.

The first indication information may be sent by the network device within a second time period, and the first time period is greater than or equal to the second time period. By making the first duration greater than or equal to the second duration, the terminal device can smoothly acquire the second configuration information when acquiring the second configuration information, and ensure the smooth update of the reference signal configuration.

The second duration may be the duration of an SI modification period, or the duration of a default paging period, or other durations.

Within the first time period after the terminal device receives the first indication information, the terminal device receives second indication information. The second indication information is used to indicate that the configuration of the reference signal has changed; in one case, the terminal device gives the first indication Whether the information and the second instruction information are the same is not judged, and the instruction of the first instruction information and the instruction of the second instruction information are executed separately. After receiving the first duration of the first indication information, the terminal device acquires the second configuration information, and after receiving the third duration of the second indication information, the terminal device acquires the second configuration information. In another case, the terminal device no longer acquires the second configuration information after receiving the first duration of the first indication information, and acquires the second configuration information only after receiving the third duration of the second indication information. In the third case, if the content of the second indication information is the same as the content of the first indication information, the terminal device obtains the second configuration information after receiving the first duration of the first indication information. The same content of the first indication information and the content of the second indication information means that: the configuration change of the reference signal indicated by the first indication information is the same as the configuration change of the reference signal indicated by the second indication information.

With reference to the first aspect, in a possible implementation manner of the first aspect, the validity of the configuration of the reference signal is judged. The configuration of the reference signal is associated with a first field, and the first field is used to determine the validity of the configuration of the reference signal. The first field may be a field defined for the configuration of the reference signal in the system information and sent to the terminal device. If the first field in the system information is the same as the first field stored by the terminal device, it is determined that the configuration of the reference signal of the terminal device is valid. If the first field in the system information is different from the first field stored by the terminal device, it is determined that the configuration of the reference signal of the terminal device is invalid.

A second aspect provides a configuration update method for reference signals, including: sending system information modification indication information in a system information modification period, the system information modification indication information is used to notify terminal equipment that the system information has changed, and then in the next system information modification period Send new system information. It is determined that the configuration of the reference signal has changed, and the second configuration information is sent after the second period of time when the configuration of the reference signal is determined to be changed, where the second configuration information includes the configuration of the reference signal. Send the first indication information, where the first indication information is used to indicate that the configuration of the reference signal has changed. The network device may send the first indication information by paging the DCI and the system information SI. During the sending of the first indication information, the network device keeps sending the first configuration information. Each system information modification period has two boundary points, and the time when the second period of time has elapsed after sending the first indication information is different from the system information modification period boundary point.

In the method for updating the configuration of the reference signal provided by the embodiment of the present application, the updating of the configuration of the reference signal is not limited by the system information modification period, and can provide better flexibility or timeliness.

The first indication information is used to indicate that the first configuration information is invalid. The network device sends the first indication information, the terminal device receives the first indication information, and the terminal device determines that the first configuration information is invalid in response to the first indication information. The first indication information indicates that the first configuration information is invalid, so that the network device can send the second configuration information at the earliest time, update the configuration of the reference signal, and shorten the network device from discovering that it needs to send the second configuration information to actually starting to send the second configuration information. Delay between configuration information.

In one case, the configuration part of the reference signal is changed. At this time, it may indicate that a part of the first configuration is invalid. The invalid part of the first configuration information may be directly indicated by the first indication information. Or the terminal device can clarify the parts of the first configuration information that are different from the second configuration information according to the first instruction information, and the terminal device determines that the parts of the first configuration information that are different from the second configuration information are invalid. As a result, for the terminal device, the effective part can continue to be used without updating, thereby saving system resources.

The third aspect provides a method for updating the configuration of a reference signal. The reference signal may be a channel state information reference signal or a tracking reference signal. The method includes: the terminal device receives first indication information, the first indication information indicating that the configuration of the reference signal has changed. The terminal device receives the time information. The first indication information and the time information may be sent by the same signaling, or may be sent by different signaling. The second configuration information is acquired at the first time, the first time is determined according to the time information, and the second configuration information includes the configuration of the reference signal.

The network device sends the first indication information to the terminal device to indicate that the configuration of the reference signal has changed. The network device may send the first indication information by paging the DCI and the system information SI. The network device also sends time information to the terminal device. The terminal device obtains the time of the second configuration information according to the time information. The terminal device and the network device agree on the update timing of the configuration of the reference signal through the time information, so that the configuration of the reference signal is updated as soon as possible. The time information can be set by the network equipment, and the time information can be set to be shorter. The flexible setting of the time information can solve the problem of rigidity in the configuration update process of the reference signal.

The time information may include a time, and the terminal device determines the first time to receive the second configuration according to this time. The process is as follows: the time contained in the time information is the time when the terminal device is allowed to start acquiring the second configuration information. The first time when the device actually obtains the second configuration information may be the same as the time, or after the time. This depends on the time when the network device sends the second configuration information.

The time information may also include a period of time, and the terminal device determines the first time for receiving the second configuration according to the period of time. The process is as follows: the terminal device uses the moment of receiving the first indication information as the starting point for calculating the period of time, and the terminal device It is allowed to start acquiring the second configuration information at the end of the period of time. The first time when the terminal device actually obtains the second configuration information may be at the end of the period of time, or after the end of the period of time. This depends on the time when the network device sends the second configuration information.

The second configuration information can be obtained through system information. The second configuration information includes the configuration of the reference signal, and the network device may use the system information to send the configuration of the reference signal to the terminal device. In the embodiment of the present application, when the second configuration information is sent using the system information, the reference signal configuration update method of the present application is adopted, and the configuration update of the reference signal may not be limited by the system information modification period.

With reference to the third aspect, in a possible implementation manner of the third aspect, the validity of the configuration of the reference signal is judged. The configuration of the reference signal is associated with a first field, and the first field is used to determine the validity of the configuration of the reference signal. The first field may be a field in the configuration of the reference signal in the system information, and is sent to the terminal device. If the first field in the system message is the same as the first field stored by the terminal device, it is determined that the configuration of the reference signal of the terminal device is valid.

A fourth aspect provides a method for updating the configuration of a reference signal, including: determining that the configuration of the reference signal has changed, sending second configuration information after determining a second period of time when the configuration of the reference signal has changed; sending first indication information, first The indication information indicates that the configuration of the reference signal has changed. During the sending of the first indication information, the network device keeps sending the first configuration information. The network device sends time information, and the time information is determined according to the second time length. The first indication information and the time information may be sent by the same signaling, or may be sent by different signaling. The second configuration information includes the configuration of the reference signal.

The network device sends the first indication information to the terminal device to indicate that the configuration of the reference signal has changed. The network device may send the first indication information by paging the DCI and the system information SI. The network device also sends time information to the terminal device. The terminal device determines the time for acquiring the second configuration information according to the time information. The terminal device and the network device agree on the update timing of the configuration of the reference signal through the time information, so that the configuration of the reference signal is updated as soon as possible. The time information can be set by the network equipment, and the time information can be set to be shorter. The flexible setting of the time information can solve the problem of rigidity in the configuration update process of the reference signal.

The time information may include a time, and the time is a time when the second time period elapses after the configuration of the determination reference signal is changed.

The time information may also include a period of time, which is determined according to a first period; the start of the first period is the moment when the first indication information is sent, and the end of the first period is after the configuration of the determination reference signal is changed The moment after the second length of time has elapsed. The period of time may be equal to the length of the first period of time, and the time when the network device can start sending the second configuration information and the time when the terminal device is allowed to start acquiring the second configuration information can be consistent, thereby improving the configuration update of the reference signal speed.

The network device may send the time information and the first indication information at the same time, or may send the time information first, and then send the first indication information. Or send the first instruction information first, and then send the time information. The first indication information and the time information may be sent by the same signaling, or may be sent by different signaling. A fifth aspect provides an apparatus for updating the configuration of a reference signal. The apparatus for updating the configuration of a reference signal may be a terminal device, including: a transceiving module, configured to receive first indication information, where the first indication information indicates that the configuration of the reference signal occurs Change; a processing module for determining that the first configuration information is invalid in response to the first indication information, the first configuration information including the configuration of the reference signal; the transceiver module is also used for receiving the first indication The second configuration information is acquired after the first duration of the information, where the second configuration information includes the configuration of the reference signal. The reference signal may be a channel state information reference signal or a tracking reference signal. The device for updating the configuration of the reference signal is used to execute the method for updating the configuration of the reference signal of the first aspect described above.

In one case, the configuration part of the reference signal changes. At this time, the processing module is used to determine that a part of the first configuration is invalid. The invalid part of the first configuration information may be indicated by the first indication information, or the invalid part of the first configuration information may be a different part from the second configuration information. As a result, for the terminal device, the effective part can continue to be used without updating, thereby saving system resources.

The first indication information may be sent by the network device within a second time period, and the first time period is greater than or equal to the second time period.

The transceiver module of the terminal equipment receives the second indication information within the first time period after receiving the first indication information, and the second indication information is used to indicate that the configuration of the reference signal has changed; in one case, the processing module of the terminal equipment No judgment is made as to whether the first instruction information and the second instruction information are the same, and the instructions of the first instruction information and the instructions of the second instruction information are executed separately. The transceiver module obtains the second configuration information after receiving the first duration of the first indication information, and obtains the second configuration information after receiving the third duration of the second indication information. In another case, the transceiver module no longer obtains the second configuration information after receiving the first duration of the first indication information, and acquires the second configuration information only after receiving the third duration of the second indication information. In the third case, if the content of the second indication information is the same as the content of the first indication information, the transceiver module of the terminal device obtains the second configuration information after receiving the first duration of the first indication information. The same content of the first indication information and the content of the second indication information means that: the configuration change of the reference signal indicated by the first indication information is the same as the configuration change of the reference signal indicated by the second indication information.

With reference to the fifth aspect, in a possible implementation manner of the fifth aspect, the validity of the configuration of the reference signal is judged. The configuration of the reference signal is associated with a first field, and the first field is used to determine the validity of the configuration of the reference signal. The first field may be a field defined for the configuration of the reference signal in the system information, and is sent to the terminal device in a broadcast manner. If the first field in the system information is the same as the first field stored by the terminal device, it is determined that the configuration of the reference signal of the terminal device is valid. If the first field in the system information is different from the first field stored by the terminal device, it is determined that the configuration of the reference signal of the terminal device is invalid.

A sixth aspect provides an apparatus for updating the configuration of a reference signal. The apparatus for updating the configuration of a reference signal may be a network device. Periodically send new system information; the processing module is used to determine that the configuration of the reference signal has changed. The transceiver module is further configured to send second configuration information after determining a second period of time when the configuration of the reference signal is changed, where the second configuration information includes the configuration of the reference signal. The transceiver module is further configured to send first indication information, where the first indication information is used to indicate that the configuration of the reference signal has changed. After determining that the configuration of the reference signal is changed, the time when the second time period has elapsed is different from the boundary point of the system information modification period. The device for updating the configuration of the reference signal is used to execute the method for updating the configuration of the reference signal of the second aspect described above.

In one case, the configuration part of the reference signal is changed. At this time, it may indicate that a part of the first configuration is invalid. The invalid part of the first configuration information may be directly indicated by the first indication information, or the terminal device can clarify the difference between the first configuration information and the second configuration information according to the first indication information, and the terminal device determines the first configuration information The part different from the second configuration information is invalidated. Therefore, for the terminal device, the effective part can continue to be used without updating, thereby saving system resources.

A seventh aspect provides an apparatus for updating the configuration of a reference signal. The apparatus for updating the configuration of a reference signal may be a terminal device, including: a transceiver module, configured to receive first indication information, the first indication information indicating that the configuration of the reference signal occurs The transceiver module is also used to receive time information. The transceiver module is also used to obtain second configuration information at a first time. The first time is determined by the processing module according to the time information, and the second configuration information includes the reference Signal configuration. The reference signal may be a channel state information reference signal or a tracking reference signal. The device for updating the configuration of the reference signal is used to execute the method for updating the configuration of the reference signal of the third aspect described above.

The validity of the configuration of the reference signal can be judged. The configuration of the reference signal is associated with a first field, and the first field is used to determine the validity of the configuration of the reference signal. The first field may be a field in the configuration of the reference signal in the system information, and is sent to the terminal device in a broadcast manner. If the first field in the system message is the same as the first field stored by the terminal device, it is determined that the configuration of the reference signal of the terminal device is valid.

An eighth aspect provides an apparatus for updating the configuration of a reference signal. The apparatus for updating the configuration of a reference signal may be a network device, including: a processing module for determining that the configuration of the reference signal has changed; Sending second configuration information after a second period of time when the configuration is changed, where the second configuration information includes the configuration of the reference signal;

The transceiver module is further configured to send first indication information, where the first indication information indicates that the configuration of the reference signal has changed; the transceiver module is also configured to send time information; the time information is determined according to the second duration. The device for updating the configuration of the reference signal is used to execute the method for updating the configuration of the reference signal of the fourth aspect described above.

The time information may also include a period of time, the period of time being determined according to a first period; the starting point of the first period is the moment when the first indication information is sent, and the end of a period is the elapsed time after the configuration of the determination reference signal is changed. The moment of the second duration. The period of time may be equal to the length of the first period of time, and the time when the network device can start sending the second configuration information and the time when the terminal device is allowed to start acquiring the second configuration information can be consistent, thereby improving the configuration update of the reference signal speed.

The network device may send the time information and the first indication information at the same time, or may send the time information first, and then send the first indication information. Or send the first instruction information first, and then send the time information. The first indication information and the time information may be sent by the same signaling, or may be sent by different signaling.

A ninth aspect provides a reference signal configuration update device, including a transceiver and a processor, the transceiver is used to execute instructions for receiving and sending information, and the processor is used to execute other steps. Specifically, the apparatus for updating the configuration of the reference signal is used to execute any possible implementation method of the first aspect or the third aspect.

A tenth aspect provides a reference signal configuration update device, including a transceiver and a processor, the transceiver is used to execute instructions for receiving and sending information, and the processor is used to execute other steps. Specifically, the device for updating the configuration of the reference signal is used to execute the method of any possible implementation of the second aspect or the fourth aspect.

An eleventh aspect provides a computer-readable storage medium on which a computer program is stored, and the program is executed by a processor to implement the method in any possible implementation manner of the first aspect or the third aspect.

A twelfth aspect provides a computer-readable storage medium on which a computer program is stored, and the program is executed by a processor to implement the method in any possible implementation manner of the second aspect or the fourth aspect

A thirteenth aspect provides a communication system, including the reference signal configuration update device described in the fifth aspect and the reference signal configuration update device described in the sixth aspect, or the reference signal configuration update device described in the seventh aspect The device and the device for updating the configuration of the reference signal described in the eighth aspect.

A fourteenth aspect provides a terminal device, the terminal device includes a memory and a processor, the memory is used to store instructions, the processor is used to execute the instructions stored in the memory, and the instructions stored in the memory The execution of causes the processor to execute the method in any possible implementation manner of the first aspect or the third aspect.

A fifteenth aspect provides a network device, the network device includes a memory and a processor, the memory is used to store instructions, the processor is used to execute the instructions stored in the memory, and respond to the instructions stored in the memory The execution of causes the processor to execute the method in any possible implementation manner of the second aspect or the fourth aspect.

Description of the drawings

FIG. 1 is a schematic diagram of a communication system applicable to a method for updating the configuration of a reference signal according to an embodiment of the present application.

FIG. 2 is a flowchart of a method for updating the configuration of a reference signal according to an embodiment of the present application.

FIG. 3 is a schematic diagram of a method for updating the configuration of a reference signal provided by an embodiment of the present application.

Fig. 4 is a schematic diagram of a paging early wake-up mechanism provided by an embodiment of the present application.

FIG. 5 is a schematic diagram of a mechanism for using a reference signal to perform paging early wake-up according to an embodiment of the present application.

FIG. 6 is a schematic diagram of another reference signal configuration update method provided by an embodiment of the present application.

FIG. 7 is a flowchart of another reference signal configuration update method provided by an embodiment of the present application.

FIG. 8 is a schematic diagram of yet another reference signal configuration update method provided by an embodiment of the present application.

FIG. 9 is a schematic diagram of yet another reference signal configuration update method provided by an embodiment of the present application.

FIG. 10 is a schematic structural diagram of an apparatus for updating a configuration of a reference signal provided by an embodiment of the present application.

FIG. 11 is a schematic diagram of another structure of the apparatus for updating the configuration of a reference signal provided by an embodiment of the present application.

FIG. 12 is a schematic diagram of another structure of the apparatus for updating the configuration of a reference signal provided by an embodiment of the present application.

FIG. 13 is a schematic diagram of another structure of the apparatus for updating the configuration of a reference signal provided by an embodiment of the present application.

Detailed ways

The technical solution in this application will be described below in conjunction with the accompanying drawings.

Hereinafter, some terms in the embodiments of the present application will be explained to facilitate the understanding of those skilled in the art.

1. The terminal devices involved in this application include devices that provide voice to users, devices that provide users with data connectivity, and devices that provide users with voice and data connectivity. For example, it may include a handheld device with a wireless connection function, or a processing device connected to a wireless modem. The terminal can communicate with the core network via a radio access network (RAN), exchange voice or data with the RAN, or exchange voice and data with the RAN. The terminal may include user equipment (UE), wireless terminal, mobile terminal, device-to-device communication (device-to-device, D2D) terminal, vehicle to everything (V2X) terminal, machine-to-machine/ Machine-to-machine/machine-type communications (M2M/MTC) terminals, Internet of things (IoT) terminals, subscriber units, subscriber stations, mobile stations station), remote station (remote station), access point (access point, AP), remote terminal (remote terminal), access terminal (access terminal), user terminal (user terminal), user agent (user agent), or User equipment (user device), etc. It may include mobile phones (or "cellular" phones), computers with mobile terminals, portable, pocket-sized, handheld, and mobile devices with built-in computers, and so on. It can include personal communication service (PCS) phones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (wireless local loop, WLL) stations, and personal digital assistants (personal digital assistants). PDA), and other equipment. It also includes restricted devices, devices with low power consumption, or devices with limited storage capabilities, or devices with limited computing capabilities. It can include information sensing equipment such as barcodes, radio frequency identification (RFID), sensors, global positioning system (GPS), and laser scanners.

As an example and not a limitation, in the embodiment of the present application, the terminal may also be a wearable device. Wearable devices can also be called wearable smart devices or smart wearable devices, etc. It is the general term for the application of wearable technology to intelligently design daily wear and develop wearable devices, such as glasses, gloves, watches, clothing and shoes Wait. A wearable device is a portable device that is directly worn on the body or integrated into the user's clothes or accessories. Wearable devices are not only a hardware device, but also realize powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-sized, complete or partial functions that can be achieved without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which need to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart helmets, smart jewelry, etc. for physical sign monitoring.

The various terminals described above, if they are located on a vehicle, such as placed in or installed in a vehicle, can be considered as vehicle-mounted terminals. The vehicle-mounted terminals are, for example, also called on-board units (OBU).

In the embodiments of the present application, the device used to implement the function of the terminal may be a terminal, or a circuit that can support the terminal to implement the function, for example, a circuit that can be applied to a chip system. The chip system can be installed in the terminal. In the embodiments of the present application, the chip system may be composed of chips, or may include chips and other discrete devices. In the technical solutions provided by the embodiments of the present application, the device used to implement the functions of the terminal is an example to describe the technical solutions provided by the embodiments of the present application.

2. The network equipment involved in this application may include radio access network (RAN) equipment, such as a base station (for example, an access point). It can refer to a device that communicates with a terminal device through an air interface in an access network, or a network device in a vehicle-to-everything (V2X) technology is a roadside unit (RSU). The base station can be used to convert received air frames and IP packets into each other, and act as a router between the terminal and the rest of the access network, where the rest of the access network can include the IP network. The RSU can be a fixed infrastructure entity that supports V2X applications, and exchanges messages with other entities that support V2X applications. The network equipment can also coordinate the attribute management of the air interface. For example, the network equipment may include a long term evolution (LTE) system or an evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in a long term evolution-advanced (LTE-A) system, Or it can also include the next generation in the evolved packet core (EPC), the 5th generation (5G), and the new radio (NR) system (also referred to as the NR system) Node B (next generation node B, gNB) or including the centralized unit (CU) and distributed unit (DU) in the cloud radio access network (Cloud RAN) system, this application The embodiment is not limited.

The network equipment may also include core network equipment, which includes, for example, access and mobility management functions (AMF).

3. The status of the terminal equipment

3.1, RRC idle state (RRC_IDLE)

The idle state refers to the state the terminal device is in when the terminal device is camped in the cell, but the random access process is not performed. The terminal device usually enters the idle state after being turned on or after the RRC is released.

3.2, RRC connected state (RRC_CONNECTED)

The connected state refers to the state that the terminal device is in when it has not performed the RRC release after completing the random access process. The terminal device can perform data transmission with the network device in the connected state.

When the terminal device is in the idle state, after the terminal device completes the random access process, the state of the terminal device transitions to the connected state.

3.3, RRC inactive state (RRC_INACTIVE)

The inactive state is the state between the connected state and the idle state. In the inactive state, the user plane bearer of the air interface has been suspended. The radio access network (RAN)-core network The user plane bearer and control plane bearer between the (core network, CN) are still maintained. When a terminal device initiates a call or service request, it needs to activate the user plane bearer of the air interface, and reuse the existing user plane bearer and control plane bearer between the RAN-CN.

4. Paging

The network device can notify the terminal device in the RRC idle state (RRC_IDLE) or the RRC inactive state (RRC_INACTIVE) to receive the paging message (paging message) through paging, or the network may notify the terminal device in the RRC idle state (RRC_IDLE) through paging. ), the terminal device in the RRC inactive state (RRC_INACTIVE) or the RRC connected state (RRC_CONNECTED) sends a short message (short message) to indicate system information (System Information, SI) update or earthquake and tsunami warning/commercial mobile warning (ETWS/CAMS), Earthquake and Tsunami Warning System/Commercial Mobile Alert Service).

4.1. Paging Occasion (PO)

The terminal device in the RRC idle state or the RRC inactive state monitors its own paging occasion in each paging cycle to determine whether the network is paging. The PO location of different terminal devices may be different.

4.2, paging cycle (paging cycle)

The paging cycle of different terminal devices may be different. Specifically, the base station broadcasts a default paging cycle (default paging cycle) through system information, and the core network may also send a terminal device-specific paging cycle (specific paging cycle) to the terminal device. The specific paging cycle of the terminal device sent by the core network is specifically for the specific terminal device, that is, the value of different terminal devices may be different. The relationship between the default paging cycle and the specific paging cycle of the terminal device may be an integer multiple. The paging cycle actually used by the terminal device may be the smaller of the default paging cycle and the specific paging cycle of the terminal device. In addition, for terminal equipment in the RRC inactive state, in addition to the above two paging cycles, the base station may also send a RAN paging cycle to the terminal equipment. That is, the terminal equipment in the RRC inactive state may have three paging cycles. The equipment uses the smallest of the three.

4.3, the basic flow of paging

The network sends paging downlink control information (DCI, Downlink Control Information) in the PO. The paging DCI may include paging message (paging message) scheduling information and/or short message (short message), etc. After receiving the paging DCI sent by the network, the terminal device determines the follow-up operation according to the content of the paging DCI: if the paging DCI contains the scheduling information of the paging message, the terminal device uses the scheduling information on the physical downlink shared channel (PDSCH, Physical Downlink Shared Channel). Downlink Shared Channel) receives and decodes the paging message, and then determines the follow-up operation according to the content of the paging message. Wherein, the paging message contains terminal device identification information of one or more terminal devices paged by the network, and the terminal device decodes the paging message to determine whether the paging message contains its own terminal device identification:

If the paging message does not contain its own terminal device identification, the terminal device ignores the paging message;

If the paging message contains its own terminal device identification, the terminal device determines the subsequent operation according to other content in the paging message.

If the paging DCI contains a short message, the terminal device receives updated system information and/or earthquake and tsunami warning/commercial mobile warning according to the instructions of the short message. If the paging DCI includes the scheduling information of the paging message and the short message, then The terminal equipment respectively receives paging messages, updated system information and/or earthquake and tsunami warning/commercial mobile warning in accordance with the prescribed procedures.

5. Reference signal (reference signal, RS)

In a wireless communication system, in order to enable terminal equipment to measure downlink channel state information or monitor cell quality, the network equipment needs to send a certain reference signal to the terminal equipment in the coverage area. The network device sends the configuration information of the reference signal identifying the reference signal to the terminal device, and the terminal device detects the downlink channel state or monitors the cell quality according to the reference signal.

Reference signals in the wireless system include: Demodulation Reference Signal (DMRS). Terminal equipment uses downlink DMRS for channel estimation and then data demodulation; Channel-State Information Reference Signal (CSI) -RS), the terminal equipment uses CSI-RS to perform channel estimation, and then performs channel state information feedback; or uses CSI-RS to monitor cell quality. It also includes tracking reference signal (Tracking reference signal, TRS) and so on.

Generally, a network device sends a configuration of a reference signal to a terminal device, and the terminal device measures the reference signal according to the configuration of the received reference signal, and then completes functions such as channel state detection. The configuration of the reference signal includes time-frequency resource information and sequence information.

6. System Information (System Information, SI)

System information is a message sent by a network device, which contains information required for initialization of the terminal device and related information about some other functions/features.

System information is divided into minimum system information (Minimum SI) and other system information (Other SI). in:

The minimum system information consists of the master information block (MIB, Master Information Block) and the system information block 1 (SIB1, System Information Block 1). SIB1 is also called the remaining minimum system information (RMSI, Remaining Minimum SI). The MIB will be periodically broadcast on the Broadcast Channel (BCH, Broadcast Channel). The SIB1 is periodically broadcast on the Downlink Shared Channel (DL-SCH, Downlink Shared Channel), or sent to the RRC connected terminal device through dedicated signaling.

Other system information is composed of other SIBs, such as SIB2 to SIB9. Other SIBs are broadcast on the DL-SCH periodically, or on-demand on the DL-SCH (that is, when the RRC idle state or RRC inactive state terminal device requests a certain SIB, the network only broadcasts the SIB, otherwise the SIB is not sent), or sent to the RRC connected terminal device by means of dedicated signaling.

7. The technical solutions of the embodiments of this application can be applied to various communication systems, such as long-term evolution (LTE) systems, worldwide interoperability for microwave access (WiMAX) communication systems, and the future Five generation (5th Generation, 5G) systems, such as new radio access technology (NR), and future communication systems, such as 6G systems.

This application will present various aspects, embodiments, or features around a system that may include multiple devices, components, modules, and the like. It should be understood and understood that each system may include additional devices, components, modules, etc., and/or may not include all the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. In addition, a combination of these schemes can also be used.

The network architecture and business scenarios described in the embodiments of this application are intended to more clearly illustrate the technical solutions of the embodiments of this application, and do not constitute a limitation to the technical solutions provided in the embodiments of this application. Those of ordinary skill in the art will know that with the network With the evolution of architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are equally applicable to similar technical problems.

Some scenarios in the embodiments of this application are described by taking the scenario of an NR network in a wireless communication network as an example. It should be noted that the solutions in the embodiments of this application can also be applied to other wireless communication networks, and the corresponding names can also be other. Replace the name of the corresponding function in the wireless communication network.

To facilitate the understanding of the embodiments of the present application, first, the communication system shown in FIG. 1 is taken as an example to describe in detail the communication system applicable to the embodiments of the present application. FIG. 1 shows a schematic diagram of a communication system applicable to the method for updating the configuration of a reference signal according to an embodiment of the present application. As shown in FIG. 1, the communication system 100 includes a network device 102 and a terminal device 106. The network device 102 may be configured with multiple antennas, and the terminal device may also be configured with multiple antennas. Optionally, the communication system may further include a network device 104, and the network device 104 may also be configured with multiple antennas.

The network device 102 or the network device 104 may also include multiple components related to signal transmission and reception (for example, a processor, a modulator, a multiplexer, a demodulator, or a demultiplexer, etc.).

In the communication system 100, both the network device 102 and the network device 104 can communicate with multiple terminal devices (for example, the terminal device 106 shown in the figure). The network device 102 and the network device 104 may communicate with one or more terminal devices similar to the terminal device 106. However, it should be understood that the terminal device communicating with the network device 102 and the terminal device communicating with the network device 104 may be the same or different. The terminal device 106 shown in FIG. 1 can communicate with the network device 102 and the network device 104 at the same time, but this only shows one possible scenario. In some scenarios, the terminal device may only communicate with the network device 102 or the network device 104. 104 communications, this application does not limit this.

FIG. 1 is only a simplified schematic diagram of an example for ease of understanding. The communication system may also include other network devices or other terminal devices, which is not shown in FIG. 1.

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

The reference signal configuration update method provided in the embodiment of the application can be applied to the update of the configuration of the reference signal. The reference signal can include: demodulation reference signal DMRS, channel state information reference signal CSI-RS, tracking reference signal TRS, sounding reference Signal SRS, etc. The reference signal can be sent by the network device to the terminal device, or the terminal device can be sent to the network device. When the configuration of the reference signal changes, the reference signal can be performed through the reference signal configuration update method provided in the embodiments of this application. The configuration update.

Example one:

FIG. 2 is a flowchart of a method for updating the configuration of a reference signal according to an embodiment of the present application. The configuration update method of the reference signal includes:

S201: The network device sends first indication information to the terminal device, where the first indication information indicates that the configuration of the reference signal has changed.

In a wireless communication system, network devices can send reference signals to terminal devices in the covered area. The network device sends the configuration information of the reference signal to the terminal device, and the terminal device obtains the reference signal according to the configuration of the reference signal. When the configuration of the reference signal will change, the network device determines that the configuration of the reference signal has changed, and the network device sends the first indication information. Wherein, the first indication information is used to indicate that the configuration of the reference signal has changed.

S202: In response to the first indication information, the terminal device determines that the first configuration information is invalid.

The terminal device receives the first indication information, and in response to the first indication information, the terminal device determines that the first configuration information is invalid. Wherein, the first configuration information includes the configuration of the reference signal. Optionally, the first configuration information may be sent by the network device before sending the first instruction information, and the terminal device will receive it accordingly. That is, the configuration of the reference signal included in the first configuration information may be the configuration of the reference signal used by the terminal device before the configuration of the reference signal needs to be updated.

S203: The network device sends second configuration information to the terminal device.

The network device determines that the configuration of the reference signal has changed, and sends the second configuration information after determining the second period of time during which the configuration of the reference signal has changed. Wherein, the second configuration information includes the configuration of the reference signal. The second duration can be set by the network device or predetermined by agreement. The second duration may be the duration of an SI modification period, or the duration of a default paging period, or other durations.

In this embodiment, the time when the network device determines that the configuration of the reference signal changes and the second time period elapses is different from the boundary point of the system information modification period of the network device.

The terminal device acquires the second configuration information after receiving the first duration of the first indication information, the terminal device has a time interval between receiving the first instruction information and acquiring the second configuration information, and the first duration is less than or equal to the time interval. The first duration can be set by the network device or predetermined by agreement.

The first duration may be greater than or equal to the second duration. By making the first duration greater than or equal to the second duration, the terminal device can smoothly obtain the second configuration information and ensure the smooth update of the reference signal configuration. In the embodiment of the present application, the terminal device determines that the first configuration information is invalid in response to the received first indication information, so that the configuration of the reference signal in the first configuration information is invalid. The terminal device determines that the configuration of the reference signal is invalid, so as to avoid using the outdated reference signal configuration after the configuration of the reference signal changes. At the same time, the network device can also send the second configuration information in time. Thus, it is ensured that the configuration of the reference signal is updated in time without being restricted by the inherent time.

For the embodiments of the present application, the steps on the terminal device side and the steps on the network device side will be separately described in detail below. FIG. 3 is a schematic diagram of a method for updating the configuration of a reference signal provided by an embodiment of the present application. FIG. 3 shows various moments when the terminal device and the network device perform actions or are in a specific state. On the time axis of Figure 3, five paging occasions PO are shown in sequence. At each paging occasion PO, the network device can perform the step of sending information; correspondingly, the terminal device performs the step of receiving information on the corresponding PO. . T1 and T2 characterize the relevant time of the network device, and t1 and t3 characterize the relevant time of the terminal device. The paging occasion PO can be regarded as a moment, or as a period of time with a certain length of time.

Terminal equipment side:

In S201, as shown in FIG. 3, the network device determines that the configuration of the reference signal will change at time T1, and sends the first indication information. The terminal device receives the first indication information at time t1. After receiving the first indication information, the terminal device can learn that the configuration of the reference signal will change. It is understandable that the terminal device can obtain the first indication information in a variety of ways, for example, by paging DCI and system information SI. Taking the paging DCI as an example, it is sent by the network device to the terminal device in the paging occasion PO, and the paging DCI contains a short message. The short message can carry the first indication information. The terminal device parses the received short message and knows that the configuration of the reference signal has changed. The time t1 when the terminal device receives the first indication information may be PO2. Alternatively, one PO includes multiple physical downlink control channels (physical downlink control channels, PDCCH) monitoring occasions (monitoring occasions, MO), and the time t1 when the terminal device receives the first indication information may be MO.

In S202, after receiving the first indication information, the terminal device, in response to the first indication information, determines that the first configuration information is invalid. The meaning of determining that the first configuration information is invalid may mean that the terminal device stops using the configuration of the reference signal in the first configuration information, or the terminal device discards the configuration of the reference signal in the first configuration information. The terminal device may determine that the first configuration information is invalid at time t1 when the first indication information is received. The terminal device determines that the corresponding configuration information is invalid in response to the first indication information, and no longer uses outdated configuration information. After receiving the first indication information, the terminal device determines that the first configuration information is invalid, so that the network device can send the second configuration information as soon as possible. Therefore, the configuration update of the reference signal is not restricted by the fixed time. When the configuration of the reference signal needs to be updated, it can be updated quickly and in time.

The configuration of the reference signal included in the first configuration information may also include any one of the following information: time-frequency resource information of the reference signal, sequence information, antenna port information, subframe information, and so on.

When the first configuration information includes configuration information of multiple reference signals, the first indication information may indicate that a part of the first configuration information is invalid. The specific invalid part may be indicated by the first indication information. It can be indicated by a single cell, it can be agreed by both parties separately, or it can be implicitly indicated. For terminal equipment, the effective part can continue to be used without updating. In other words, only those parts that are invalid are updated. For example, the first configuration information includes configurations of five reference signals RS1, RS2, RS3, RS4, and RS5. The first indication information indicates that the configuration of the reference signals RS1, RS2, and RS3 has changed. At this time, the terminal device determines that the configuration of the reference signals RS1, RS2, and RS3 is invalid, the configuration of the reference signals RS4 and RS5 is valid and continues to be used, and obtains the reference signals RS4 and RS5 according to the configuration of the reference signals RS4 and RS5.

The invalid part in the first configuration information is a different part from the second configuration information. Through the first indication information, it can be known which part of the first configuration information is different from the second configuration information, different parts need to be updated, and the same part of the first configuration information compared with the second configuration information can continue to be valid Continue to use, no need to update, thus saving system resources.

For example, the first configuration information includes the configuration of five reference signals RS1, RS2, RS3, RS4, and RS5. It is learned from the first indication information that the first configuration information includes the configuration of the reference signals RS1, RS2, RS3 and the second configuration. The configurations of RS1, RS2, and RS3 included in the information are different, and the configuration of the reference signals of the reference signals RS4 and RS5 included in the first configuration information is the same as the configuration of the reference signals of RS4 and RS5 included in the second configuration information. The terminal device determines that the configuration of the reference signals RS1, RS2, and RS3 is invalid, the configuration of the reference signals RS4 and RS5 is valid and continues to be used, and obtains the reference signals RS4 and RS5 according to the configuration of the reference signals RS4 and RS5.

In S203, the terminal device acquires the second configuration information after receiving the first duration of the first indication information. The second configuration information includes the configuration of the reference signal. As shown in FIG. 3, the terminal device receives the first indication information at time t1, time t1 is used as the starting point for calculating the first time length, time t3 is the end point of the first time length, and t3=t1+first time length. The terminal device is allowed to start acquiring the second configuration information at time t3. The first duration may be sent by the network device or preset by the protocol. The terminal device is allowed to start acquiring the second configuration information at time t3, that is, the terminal device can start acquiring the second configuration information at time t3. The time when the second configuration information is actually obtained may be at time t3 or after time t3. It may depend on the time when the network device sends the second configuration information.

In the method for updating the configuration of the reference signal provided by the embodiment of the present application, the terminal device determines that the first configuration is invalid after receiving the first indication information, which can ensure that the terminal device disables the outdated configuration information when the network device sends the second configuration information , To prevent the terminal device from still using the first configuration information to obtain the configuration of the outdated reference signal. At the same time, the network device can send the second configuration information at the earliest possible time, update the configuration of the reference signal, and shorten the time delay between the network device discovering the need to send the second configuration information and actually starting to send the second configuration information. At the same time, starting from the moment when the terminal device receives the first instruction information, the first duration is calculated, and the second configuration information is acquired after the first duration, which can ensure that when the terminal device starts to acquire the second configuration information, the network device has already started sending The second configuration information, thereby smoothly acquiring the second configuration information, ensures that the configuration update of the reference signal of the terminal device is successful.

Network equipment side:

In S201, as shown in FIG. 3, the network device determines that the configuration of the reference signal has changed at time T1, and the network device sends first indication information. The first indication information indicates that the configuration of the reference signal has changed. Before the network device sends the first instruction information to the terminal device and during the period when the network device sends the first instruction information to the terminal device, the network device may send the first configuration information, where the first configuration information includes the configuration of the reference signal. It is understandable that the network device may use multiple methods to send the first indication information, for example, by paging DCI and system information SI. Taking the paging DCI as an example, it is sent by the network device to the terminal device in the paging occasion PO, and the paging DCI contains a short message. The short message can carry the first indication information. The terminal device parses the received short message and knows that the configuration of the reference signal has changed. The network device may send the first indication information within the second time period. During the second time period, the network may repeatedly send the first indication information. The network device may send the first indication information at the first paging occasion PO2 within the second duration, and repeatedly send the first indication information at the second paging occasion PO3 within the second duration. Or, the network device repeatedly sends the first indication information to any one or more MOs in a PO. In S203, the network device sends the second configuration information to the terminal device after determining the second duration of time T1 when the configuration of the reference signal changes. The second duration is calculated using time T1 as the starting point. At time T2, the network device can start to send the second configuration information, T2=T1+second duration. After time T2, the network device sends the second configuration information. In this embodiment, the time T2 after the second period of time has elapsed after sending the first indication information is different from the boundary point of the system information modification period. The boundary point of the system information modification period can be the start or end of the system frame, or it can be a moment in time. The second time T2 after sending the first indication information is different from the boundary point of the system information modification period, which means that the time T2 does not coincide with the start or end of the system frame, or the time T2 does not coincide with the time at which the boundary point is located.

The system information modification cycle, and the corresponding system information update process.

System information update refers to the update of system information by network equipment. In the process of system information update, the network device first needs to notify the terminal device that the system information will change, and then can send the updated system information. Correspondingly, the concept of system information modification period (SI modification period) is defined. The SI modification period is generally N times the default paging period. In order to ensure the reliability of the system information update, N can be specified as a minimum of 2. The boundary of the SI modification period, that is, the starting point or the ending point, can be fixed at certain moments. This is known to both network equipment and terminal equipment, and may be through signaling interaction or protocol agreement.

Taking Figure 3 as an example, in the time domain, there are system information modification cycles M1, M2, and M3 in sequence. One of the system information modification cycles includes two paging cycles. Fig. 3 takes one paging occasion PO in one paging cycle as an example, showing that one system information modification cycle includes two paging occasions PO. For example, M1 contains PO1 and PO2, and M2 contains PO3 and PO4. Under such regulations, the system information update process is introduced as follows.

The network device determines that the system information needs to be updated, and first needs to send a system information modification indication (SI change indication), and then send new system information. It should be noted that when a network device sends an SI modification instruction, it usually needs to ensure that all terminal devices camping on the cell can successfully receive the system information modification instruction. Therefore, the network device needs to send an SI modification instruction at least once on all possible POs. In other words, if a network device finds that system information needs to be updated at some point in the middle of a SI modification period, because the SI modification period is incomplete, when the network device cannot guarantee that all terminal devices will be notified within the SI modification period , The network device cannot send the SI modification instruction in this SI modification period, but needs to wait for the next complete SI modification period to arrive before sending the SI modification instruction. For example, the network device determines that the system information has changed at time T1. T1 is located between PO1 and PO2. The network device does not send the system information modification instruction within the SI modification period M1 (such as PO2). Need to wait for the next SI modification period M2, that is, send SI modification instructions in PO3 and PO4 within M2 to instruct the system information to update. After the SI modification period M3 starts, new system information is sent. The network device already needs to use the new system message at T1, but at least one M2 time is wasted due to the rigid regulation of the system information modification cycle. This is a loss for timeliness. For reference signals and time-sensitive communications, this loss is unbearable.

Use system information to modify the configuration of the periodic update reference signal

In a possible implementation manner, the above-mentioned system information update scheme may be used to update the configuration of the reference signal. Still refer to Figure 3 as an example. The information indicating the update of the reference signal is included in the SI modification instruction, and the network device determines that the configuration of the reference signal has changed at time T1 in the SI modification period M1. If the network device cannot guarantee that all terminal devices will be notified within the period M1, the network needs to wait for the next SI modification period M2 to arrive, and then send the SI modification instruction in the period M2. Subsequently, the network device can only send the new reference signal and the new reference signal configuration until the next SI modification period M3 arrives. From the beginning of T1 to the arrival of the modification period M3, the network needs to keep sending the original reference signal. There is a problem that the configuration of the reference signal cannot be updated immediately. After the network device discovers that the configuration of the reference signal has changed, the change cannot be made immediately, and it may still need to keep sending the original reference signal for a relatively long period of time.

The configuration update of the reference signal is not limited by the system information modification cycle

Therefore, in the embodiment of the present application, a new reference signal update mechanism is provided. This mechanism is not limited by the system information modification cycle, and can provide higher flexibility or timeliness.

In FIG. 3, the network device determines that the configuration of the reference signal has changed at time T1, and calculates the second duration using time T1 as the starting point. The end of the second duration is time T2. At time T2, the network device can start sending second configuration information. The network device may actually send the second configuration information at time T2 or after time T2. The boundary point of the system information modification period M2 is different from T2. Time T2 is not the same time as the time when the boundary point of any system information modification period is located. The network device stops sending the first instruction information at time T2, and starts to start the procedure of sending the second configuration information to the terminal device. In other words, the network device can start sending the second configuration information at time T2. After T2, the network device sends the second configuration information to the terminal device.

The second configuration information acquired by the terminal device may be acquired through system information. The second configuration information includes the configuration of the reference signal, and the network device may use the system information to send the configuration of the reference signal to the terminal device. In the embodiment of this application, for the situation where the system information is used to send the second configuration information, the reference signal configuration update method of this application is adopted to update the configuration of the reference signal so that the update of the configuration of the reference signal is not modified by the system information. Cycle limit.

The first duration may be greater than or equal to the second duration. By making the first duration greater than or equal to the second duration, the terminal device can smoothly obtain the second configuration information and ensure the smooth update of the reference signal configuration.

The terminal device uses the reference signal to wake up, and uses the reference signal configuration update method of the embodiment of this application to The configuration of the reference signal is updated

For a terminal device in the RRC idle state or the RRC inactive state, it needs to monitor the PO to which it belongs in each paging cycle. Before PO, terminal equipment needs to perform measurements in advance to complete operations such as time-frequency tracking/synchronization. These operations can be collectively referred to as "background operations" to ensure that they can enter the wake-up state when the PO arrives, monitor the PO normally, and perform paging-related operations.

Exemplarily, FIG. 4 is a schematic diagram of a paging early wake-up mechanism provided by an embodiment of the present application. FIG. 5 is a schematic diagram of a mechanism for using a reference signal to perform paging early wake-up according to an embodiment of the present application. Referring to FIG. 4, terminal devices in the RRC idle state or the RRC inactive state use a synchronization signal/physical broadcast channel block (SSB, Synchronization Signal/Physical Broadcast Channel Block) for measurement, and then complete the "background" operation to wake up in advance. In Figure 4, the SSB is relatively sparse, and the period of the SSB is relatively large (for example, 20ms, 40ms, 160ms, etc.). This causes the terminal equipment to use multiple SSBs for background operations a long time before PO. The terminal device can only enter a light sleep state between each SSB. Therefore, the power consumption of the terminal equipment in the RRC idle state or the RRC inactive state in the NR will be greater.

In order to reduce the power consumption of the terminal device in the RRC idle state or the RRC inactive state, the terminal device uses the SSB and the reference signal to perform measurement before the paging, or the terminal device directly uses the reference signal to perform the measurement directly before the paging. With reference to Figure 5, the reference signals RS1 and RS2 can be provided to the terminal equipment in the RRC idle state or the RRC inactive state. In this way, the time for the terminal equipment to wake up in advance can be shortened from the multiple SSBs in Figure 4 to Figure 5. One of the SSB.

In addition, the reference signals RS1 and RS2 in FIG. 5 can not only be used by terminal devices in the RRC idle state or the RRC inactive state. The reference signals RS1 and RS2 in Figure 5 are reference signals sent to the terminal equipment in the RRC connected state. Because there is no need to configure additional reference signals for the terminal equipment in the RRC idle state or the RRC inactive state, thereby saving network resources, the reference signal can be It is a channel state information reference signal or a tracking reference signal.

Send the reference signal originally sent to the terminal device in the RRC connected state to the terminal device in the RRC idle state or the RRC inactive state to help the terminal device in the RRC idle state or the RRC inactive state to wake up before the paging period PO arrives .

In the context of this embodiment, timely updating of the configuration of the reference signal is particularly important. The configuration of the reference signal sent to the terminal device in the RRC connected state is also sent to the terminal device in the RRC idle state or the RRC inactive state as an early wake-up signal before the PO. Assuming that the network device finds that the configuration of the reference signal sent to the RRC connected terminal device will change, for the terminal device in the RRC idle state or the RRC inactive state, the update of the reference signal configuration is limited by the system information modification period. The configuration will not be updated in time. At this time, the configuration of the reference signal sent to the RRC connected terminal device can only maintain the configuration of the reference signal before the update, and cannot be updated. It is equivalent to that the resources for the RRC connected terminal device are occupied, which affects the performance of the RRC connected terminal device.

Applying the schemes of Figures 2 and 3 to the background of Figure 5, the network device can immediately send the first instruction information to the terminal device when it needs to update the configuration of the reference signal, because the terminal device determines the first configuration after receiving the first instruction information The information is invalid. After the network device sends the first instruction information, the network can quickly send the second configuration information to shorten the time that the network device keeps sending the first configuration information. At this time, the original reference sent to the RRC connected terminal device The configuration of the signal is sent to the terminal device in the RRC idle state or the RRC inactive state. Since the configuration of the reference signal can be updated quickly, it will not affect the performance of the terminal device in the RRC connected state.

Determine the validity of the configuration of the reference signal

The embodiment of the present application can also determine whether the configuration of the reference signal currently stored by the terminal device is valid.

The configuration of the reference signal is associated with a first field, and the first field is used to determine the validity of the configuration of the reference signal. The first field may be a field defined for the configuration of the reference signal in the system information, and is sent to the terminal device in a broadcast manner. For example, when the first field is set to a certain value M, when the terminal device receives and saves the first configuration information, or before/after the terminal device receives and saves the first configuration information, it reads the first field in the system information, And store the value M of the first field.

When the network device updates the configuration of the reference signal, it also updates the first field associated with the configuration of the reference signal. The terminal device can actively determine whether the first field in the system information sent by the current network device is the same as the value of the first field stored by the terminal device. If the value of the first field in the current system information is the same as the value of the first field stored by the terminal device, it is judged that the configuration of the reference signal stored in the terminal device is the same as the configuration of the reference signal in the current system information, it means The current configuration of the reference signal of the terminal device is valid, and the terminal device does not need to update the configuration of the reference signal. If the value of the first field in the current system information is different from the value of the first field stored in the terminal device, it is judged that the configuration of the reference signal stored in the terminal device is different from the configuration of the reference signal in the current system information, it means the current terminal The configuration of the reference signal of the device is invalid, and the terminal device can update the configuration of the reference signal. For example, if when reading system information, the terminal device finds that the value of the first field in the system information is N, and the value of this field saved by the terminal device is M, it means that the reference signal configuration in the current system information has been changed , The terminal device can obtain the configuration of the new reference signal.

The process of determining the validity of the configuration of the reference signal in the embodiment of the present application may be used in addition to the process of updating the configuration of the reference signal. The terminal device actively judges whether the current reference signal configuration is valid. The terminal device obtains the value of the first field sent by the system information and compares it with the value of the first field currently stored. If the values are different, the configuration of the reference signal currently stored by the terminal device is different from the configuration of the reference signal being sent by the system information, and the terminal device will determine that the configuration of the current reference signal is invalid.

In the embodiments of FIG. 2 and FIG. 3 of the present application, after the acquisition of the second configuration information is completed, the validity of the configuration of the reference signal may be judged. When the network device updates the first configuration information, it will also update the first field associated with the first configuration information, that is, when the network device sends the second configuration information to the terminal device, it will also set the association with the second configuration information in the system information. The first field.

The first field associated with the second configuration information is sent to the terminal device in a broadcast manner. For example, when the first field is set to a certain value N, when the terminal device receives the second configuration information, or before/after receiving the second configuration information, the terminal device reads the value N of the first field in the system information, and then The value N of the first field is stored to replace the value of the first field originally associated with the first configuration information. After a period of time, the terminal device can actively determine whether the configuration of the reference signal in the currently stored second configuration information is still valid. The terminal device obtains the value of the first field in the system information when reading the system information, assuming that the value is still N, which is the same as the value N of the first field associated with the currently stored second configuration information. Then it is determined that the current configuration of the reference signal of the second configuration information is valid.

FIG. 6 is a schematic diagram of another reference signal configuration update method provided by an embodiment of the present application. Referring to FIG. 6, during the first time period after the terminal device receives the first indication information, the terminal device receives the second indication information at time t2 , The second indication information indicates that the configuration of the reference signal has changed. For the terminal device, after receiving the first indication information at time t1, before being allowed to start acquiring the second configuration information at time t3, it receives the second indication information sent by the network device at time t2, and the second indication information indicates the reference signal. The configuration has changed. After receiving the second indication information, the terminal device can take one of the following three processing methods to process.

method one:

The terminal device does not judge whether the first instruction information and the second instruction information are the same, and the instruction of the first instruction information and the instruction of the second instruction information are executed separately. Specifically, as shown in FIG. 6, the terminal device receives the first indication information at time t1, and is allowed to start acquiring the second configuration information at time t3 after receiving the first duration of the first indication information. The terminal device receives the second indication information at time t2, and is allowed to start acquiring the second configuration information at time t4 after receiving the third duration of the second indication information, t4=t2+third duration. The second configuration information that is allowed to start acquiring at time t3 may be the same or different from the second configuration information that is allowed to start acquiring at time t4. In other words, the terminal device only receives the corresponding configuration information according to the latest received instruction information, and according to the latest received instruction information. Optionally, the third duration may be sent by a network device or preset by a protocol. The third duration can be equal to the first duration.

Regarding the second indication information, the third duration and the third configuration information are the same as the foregoing description of the first indication information, the first duration, and the second configuration information, and the detailed description will not be repeated.

In this processing mode, the terminal device processes the first indication information and the second indication information separately. Both the first indication information and the second indication information are sent by the network device, and the contents indicated by the two may be the same or different.

Way two:

The terminal device determines that the content of the second indication information is the same as the content of the first indication information, and acquires the second configuration information after receiving the first duration of the first indication information.

In this processing mode, after receiving the second indication information, the terminal device compares the contents of the first indication information and the second indication information. If it is determined that the content of the first instruction information is the same as the content of the second instruction information, it is allowed to start acquiring the second configuration information at time t3. The reception of the second instruction information does not affect the terminal device's execution of other steps after the first instruction information is received. Since the first instruction information and the second instruction information are the same, the terminal device no longer separately responds to the second instruction information. In other words, the terminal device judges the new and old indication information in real time. When the indication information of the new and old indication information is the same, that is, when the indication information of t1 and t2 are the same, the configuration information corresponding to the old indication information is still used, that is, the configuration information of t3 instead of t4. Configuration information. In this way, at least t4-t3 time is saved, so that the configuration of the reference signal can be updated faster.

Here, the content of the first indication information and the content of the second indication information have the same meaning as: the change in the configuration of the reference signal indicated by the first indication information is the same as the change in the configuration of the reference signal indicated by the second indication information. For example, the first configuration information includes the configuration of five reference signals RS1, RS2, RS3, RS4, and RS5, the first indication information indicates that the configuration of the reference signals RS1, RS2, and RS3 will change, and the configuration of the reference signals RS4 and RS5 remains unchanged. Change. The first indication information indicates that the configuration of the reference signals RS1, RS2, and RS3 will change, and the configuration of the reference signals RS4 and RS5 remains unchanged. Then the content of the first instruction information and the second instruction information are the same.

Way three:

The terminal device no longer obtains the second configuration information after time t3, but is allowed to start obtaining the second configuration information at time t4 after the third time period of receiving the second indication information, and then actually obtains the second configuration information at time t4 or after time t4. 2. Configuration information. Optionally, the third duration may be equal to the first duration.

Compared with the first method, the second configuration information is still acquired after the time t3 in the first method, and the second configuration information is no longer acquired after the time t3 in the third method, and the second configuration information is only allowed to start acquiring the second configuration information at the time t4.

The embodiments of the present application provide three processing methods after the terminal device receives the second indication information within the first time period, which can further simplify the configuration update process and save system resources.

The second embodiment of the present application will be described below with reference to FIGS. 7-9:

FIG. 7 is a flowchart of another reference signal configuration update method provided by an embodiment of the present application. Figures 8 and 9 are schematic diagrams of yet another reference signal configuration update method provided by an embodiment of the present application. The method for updating the configuration of the reference signal provided in this embodiment can also be used to update the configuration of the reference signal. Referring to Figure 7, the method includes:

S701: The network device sends first indication information to the terminal device, where the first indication information indicates that the configuration of the reference signal has changed.

In the wireless communication system, the network equipment needs to send a certain reference signal to the terminal equipment in the covered area. The network device sends the configuration information of the reference signal to the terminal device, and the terminal device obtains the reference signal according to the configuration of the reference signal. The network device determines that the configuration of the reference signal has changed, the network device sends the first indication information, and the terminal device receives the first indication information. Wherein, the first indication information is used to indicate that the configuration of the reference signal has changed.

S702: The network device sends time information to the terminal device.

The network device sends time information, and the time information is determined according to the second duration. The terminal device receives the time information sent by the network device. The terminal device determines the first time for acquiring the second configuration information according to the time information.

The time information and the first indication information can be sent in the same signaling, or can be sent separately.

S703: The network device sends second configuration information to the terminal device.

After determining the second duration of the reference signal change, the network device sends the second configuration information. Determining the moment when the configuration of the reference signal changes can be used as a starting point for calculating the second duration. The network device sends the first indication information to the terminal device to indicate that the configuration of the reference signal has changed, and also sends time information to the terminal device. The terminal device determines the time for acquiring the second configuration information according to the time information. The terminal device and the network device agree on the update timing of the configuration of the reference signal through the time information, so that the configuration of the reference signal is updated as soon as possible. The time information is determined by the network device according to the second time length. The time information can be set to be shorter, and the flexible setting of the time information can solve the problem of rigidity in the configuration update process of the reference signal. Hereinafter, each step of the second embodiment will be described in detail in conjunction with FIG. 8 and FIG. 9:

Figures 8 and 9 show various moments when the terminal device and the network device perform actions or are in a specific state. On the time axis of FIG. 8, five paging occasions PO are sequentially shown. On the time axis of FIG. 9, three paging occasions PO are sequentially shown. At each paging occasion PO, the network device can execute the step of sending information; correspondingly, the terminal device executes the step of receiving information on the corresponding PO. T1 and T2 characterize the relevant time of the network device, and t1 and t3 characterize the relevant time of the terminal device.

FIG. 9 further shows a situation in which one paging occasion PO includes 4 physical downlink control channel PDCCH monitoring occasions MO. The paging timing PO and the monitoring timing MO can be regarded as a moment, and can also be regarded as a period of time with a certain length of time.

In FIGS. 8 and 9, T1 is the time T2 when the network device determines that the configuration of the reference signal changes. The network device can start to send the second configuration information. Time t1 is the time when the terminal device receives the first instruction information, and at time t3 the terminal device is allowed to start acquiring the second configuration information. The second time period is between time T1 and time T2. In S701, as shown in FIG. 8 and FIG. 9, the network device determines that the configuration of the reference signal has changed at time T1. The network device sends first indication information after determining that the configuration of the reference signal has changed, where the first indication information is used to indicate that the reference signal has changed. The network device may send the first indication information at the first paging occasion PO2 within the second time period between the time T1 and the time T2. Or the network device may repeatedly send the first indication information, for example, sending it at PO2, and sending it at PO3 within the second time period. It can be sent repeatedly on PO2 or on PO3. Or the network device may repeatedly send an indication message on the MO in the PO2 or PO3 shown in FIG. 9.

The terminal device receives the first indication information at time t1. After receiving the first indication information, the terminal device will be able to learn that the configuration of the reference signal has changed. For example, the background operation in Figure 5 will not be repeated here. The second configuration information includes the configuration of the reference signal, and the second configuration information is sent by the network device. During the sending of the first indication information, the network device keeps sending the first configuration information. The terminal device may keep the stored configuration of the reference signal valid before the time t3 when it is allowed to obtain the second configuration information.

Similar to S201, the network device can use multiple methods to send the first indication information, so that the terminal device knows that the configuration of the reference signal has changed.

In S702, the network device sends time information, and the time information is determined according to the second duration. The terminal device determines the first time for acquiring the second configuration information according to the time information sent by the network device.

The time information in the embodiment of the present application may be a moment, and the moment is a moment when the second time period elapses after the configuration of the determination reference signal is changed. Specifically, the time T1 at which the configuration of the reference signal changes is determined as the starting point for calculating the second duration. The time T2 after the second time length is used as the end point for calculating the second time length, T2=T1+the second time length. Therefore, the one time included in the time information is time T2. Another meaning for time T2 is that the network device can start sending the second configuration information at time T2. The second configuration information can actually be sent at time T2 or after time T2.

The terminal device determines the first time for receiving the second configuration according to the moment. Referring to Figure 8 and Figure 9, the process is as follows:

The terminal device determines the time t3 at which the terminal device is allowed to start acquiring the second configuration information according to the time T2 included in the time information, t3=T2. The first time when the terminal device actually obtains the second configuration information may be the same as t3, or after time t3. This depends on the time when the network device sends the second configuration information.

In the embodiment of the present application, the time information may also include a period of time, and the period of time is determined according to the first period;

The starting point of the first time period is the time when the first indication information is sent, and the end point of the first time period is the time when the second time period has elapsed after the configuration of the determination reference signal is changed.

The network device sends the first indication information after determining that the configuration of the reference signal has changed at time T1. As shown in Figs. 8 and 9, the network device sends the first indication information at time T1'. The network device may send the first indication information at the first paging occasion PO2 within the second time period. Or the network device may repeatedly send the first indication information, for example, sending it at PO2, and sending it at PO3 within the second time period. It can be sent repeatedly on PO2 or on PO3. Or the network device may repeatedly send an indication message on the MO in the PO2 or PO3 shown in FIG. 9. Take T1' as the starting point of the first period.

It is determined that the time T2 at which the second time period has elapsed after the configuration of the reference signal is changed is the end of the first period. The period of time included in the time information may be determined according to the first period.

The terminal device determines the first time for receiving the second configuration information according to the period of time. The following describes in detail the process of the terminal device determining the first time based on the time information:

The terminal device uses the time t1 when the first indication information is received as a starting point for calculating the period of time.

The time t1 when the terminal device receives the first indication information may be PO2. Or, as shown in FIG. 9, a paging cycle includes multiple physical downlink control channel PDCCH monitoring occasions MO. In FIG. 9, a case where one PO includes four PDCCH monitoring occasions MO is exemplarily shown. The time t1 when the terminal device receives the first indication information is any MO. Taking the time t1 as the time starting point, the terminal device is allowed to start acquiring the second configuration information at the time t3, and t3=t1+the period of time. The first time when the terminal device actually obtains the second configuration information may be at time t3 or after time t3. This depends on the time when the network device sends the second configuration information.

The period of time included in the time information may be equal to the length of the first period, the period of time=T2-T1'. Therefore, it can be ensured that the time T2 when the network device can start sending the second configuration information is the same as the time t3 when the terminal device is allowed to start acquiring the second configuration information.

In this embodiment, the network device may send the time information and the first indication information at the same time, or may send the time information first, and then send the first indication information. Or send the first instruction information first, and then send the time information. The first indication information and the time information may be sent by the same signaling, or may be sent by different signaling.

S703: The terminal device obtains second configuration information.

The network device sends second configuration information after determining the second period of time when the configuration of the reference signal has changed, where the second configuration information includes the configuration of the reference signal; the terminal device acquires the second configuration information at the first time. The network device determines the time T1 when the configuration of the reference signal is changed as the starting point for calculating the second duration. The time T2 after the second time length is used as the end point for calculating the second time length, T2=T1+the second time length. Therefore, the network device can start sending the second configuration information at time T2. The second configuration information can actually be sent at time T2 or after time T2. The first time determination method is as S702.

Through this implementation manner, the time when the network device can start sending the second configuration information and the time when the terminal device is allowed to start acquiring the second configuration information can be consistent, thereby increasing the speed of the configuration update of the reference signal.

In an optional implementation manner, the second configuration information is obtained through system information. The second configuration information includes the configuration of the reference signal, and the network device may use the system information to send the configuration of the reference signal to the terminal device. When the configuration of the reference signal changes, the network device usually uses the system information update mechanism to update the configuration of the reference signal. Since the system information update mechanism has a fixed system information modification period, the configuration update of the reference signal is restricted by the system information modification period, which causes problems such as untimely update. In the embodiment of the present application, in the case of using the system information to send the second configuration information, the update of the configuration of the reference signal may not be restricted by the system information modification period.

Optionally, the terminal device in this embodiment may be in an RRC idle state or an RRC inactive state. For specific content, please refer to the description of Embodiment 1, which will not be repeated here.

Optionally, the configuration of the reference signal is associated with a first field, and the first field is used to determine the validity of the configuration of the reference signal. The terminal device receives the system information, the system information includes a first field, determines that the first field in the system message is the same as the first field stored by the terminal device, and determines that the configuration of the reference signal of the terminal device is valid. For specific content, please refer to the description of Embodiment 1, which will not be repeated here.

In this embodiment, when the configuration of the reference signal needs to be updated, the network device sends the first indication information to the terminal device and also sends the time information. According to the time information, the time at which the terminal device obtains the second configuration information can be determined, so that the update timing of the configuration of the reference signal can be agreed. Flexible setting of time information can solve the problem of rigidity in the configuration update process of the reference signal, and at the same time can ensure the timeliness of the configuration update of the reference signal.

The foregoing describes the communication method of the embodiment of the present application, and the communication device in each embodiment of the present application will be introduced below. For example, the device can use the methods involved in the solutions shown in Figures 2-9. The device is based on the same technical idea. Since the method and the principle of the device to solve the problem are similar, the implementation of the device and the method can be referred to each other, and the repetition will not be repeated.

The embodiment of the present application also provides an apparatus for updating the configuration of a reference signal. The apparatus for updating the configuration of a reference signal may be a terminal device or a circuit. The device for updating the configuration of the reference signal may be used to perform the actions performed by the terminal device in the first embodiment of the above method.

The device for updating the configuration of the reference signal includes:

A transceiver module, configured to receive first indication information, the first indication information indicating that the configuration of the reference signal has changed;

A processing module, configured to determine that the first configuration information is invalid in response to the first indication information, and the first configuration information includes the configuration of the reference signal;

The transceiver module is further configured to obtain second configuration information after receiving the first duration of the first indication information, where the second configuration information includes the configuration of the reference signal.

In the embodiment of the present invention, in response to the received first indication information, the terminal device determines that the first configuration information is invalid, so that the configuration of the reference signal in the first configuration information is invalid. By determining that the configuration of the reference signal is invalid, the terminal device no longer uses the outdated configuration information, and is ready to receive the second configuration information. After receiving the first indication information, the terminal device determines that the first configuration information is invalid, so that the configuration update of the reference signal is not restricted by the fixed time. When the configuration of the reference signal needs to be updated, the update can be performed promptly and quickly.

The device for updating the configuration of the reference signal provided in this embodiment can also be used to execute the method in any possible implementation manner of the above method embodiment 1. For the specific content, please refer to the part of the action performed by the terminal device in the method embodiment 1. , I won’t repeat it here.

The embodiment of the present application also provides an apparatus for updating the configuration of a reference signal. The apparatus for updating the configuration of a reference signal may be a terminal device or a circuit. The device for updating the configuration of the reference signal can be used to perform the actions performed by the terminal device in the second embodiment of the above method.

The device for updating the configuration of the reference signal includes:

A transceiver module, configured to receive first indication information, where the first indication information indicates that the configuration of the reference signal has changed;

The transceiver module is also used to receive time information;

The transceiver module is further configured to acquire second configuration information at a first time, the first time is determined by the processing module according to the time information, and the second configuration information includes the configuration of the reference signal.

In this embodiment, the terminal device receives the first indication information, and the first indication information is used to indicate that the configuration of the reference signal has changed, and the terminal device also receives time information. The network device and the terminal device respectively determine the time for sending the second configuration information and the time for acquiring the second configuration information according to the time information. The terminal device and the network device agree on the update timing of the configuration of the reference signal through the time information, so that the configuration of the reference signal is updated as soon as possible. The time information can be set by the network device. The time information can be set to be shorter, and the flexible setting of the time information can solve the problem of rigidity in the configuration update process of the reference signal.

The device for updating the configuration of the reference signal provided in this embodiment can also be used to execute the method in any possible implementation manner of the second embodiment of the method. For the specific content, please refer to the part about the actions performed by the terminal device in the second method embodiment. The content will not be repeated here.

FIG. 10 shows a schematic structural diagram of a simplified reference signal configuration updating device, which is easy to understand and easy to illustrate. In FIG. 10, the reference signal configuration updating device uses a terminal device as an example. As shown in FIG. 10, the device for updating the configuration of the reference signal includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device. The processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal devices may not have input and output devices.

When data needs to be sent, the processor performs baseband processing on the data to be sent, and outputs the baseband signal to the radio frequency circuit. The radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is sent to the terminal device, the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data. For ease of description, only one memory and processor are shown in FIG. 10. In an actual terminal device product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or storage device. The memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.

In the embodiments of the present application, the antenna and radio frequency circuit with transceiving functions can be regarded as the transceiving module of the configuration updating device for reference signals, and the processor with processing function can be regarded as the processing module of the configuration updating device for reference signals. As shown in FIG. 10, the device for updating the configuration of the reference signal includes a transceiver module 101 and a processing module 102. The transceiver module may also be called a transceiver, transceiver, transceiver, and so on. The processing module may also be called a processor, a processing board, a processing device, and so on. Optionally, the device for implementing the receiving function in the transceiver module 101 can be regarded as the receiving module, and the device for implementing the sending function in the transceiver module 101 can be regarded as the sending module, that is, the transceiver module 101 includes a receiving module and a sending module. The transceiver module may sometimes be called a transceiver, a transceiver, or a transceiver circuit. The receiving module may sometimes be called a receiver, a receiver, or a receiving circuit. The sending module can sometimes be called a transmitter, a transmitter, or a transmitting circuit.

It should be understood that the transceiving module 101 is used to perform the sending and receiving operations on the terminal device side in the foregoing method embodiment, and the processing module 102 is used to perform other operations on the terminal device in the foregoing method embodiment except for the transceiving operation.

For example, in an implementation manner, the transceiver module 101 is used to perform the receiving operations on the terminal device side in S201 and S203 in FIG. Send and receive steps. The processing module 102 is configured to execute S202 in FIG. 2 and/or the processing module 102 is also configured to execute other processing steps on the terminal device side in the embodiment of the present application.

For another example, in another implementation manner, the transceiver module 101 is used to perform the receiving operations on the terminal device side in S701, S702, and S703 in FIG. 7, and/or the transceiver module 102 is also used to perform the terminal device in this embodiment of the application. Other receiving and sending steps on the side. The processing module 102 is configured to execute other processing steps on the terminal device side in the embodiment of the present application.

When the device for updating the configuration of the reference signal is a chip-type device or circuit, the chip device may include a transceiver module and a processing module. Wherein, the transceiver module may be an input/output circuit and/or a communication interface; the processing module is a processor, microprocessor, or integrated circuit integrated on the chip.

When the device for updating the configuration of the reference signal in this embodiment is a terminal device, the device shown in FIG. 11 may be referred to. In FIG. 11, the device includes a processor 111, a data sending processor 112, and a data receiving processor 113. The processing module in the foregoing embodiment may be the processor 111 in FIG. 11, and completes corresponding functions. The transceiver module in the foregoing embodiment may be the sending data processor 112 and/or the receiving data processor 113 in FIG. 11. Although the channel encoder and the channel decoder are shown in FIG. 11, it can be understood that these modules do not constitute a restrictive description of this embodiment, and are only illustrative.

Fig. 12 shows another form of this embodiment. The processing device 120 includes modules such as a modulation subsystem, a central processing subsystem, and a peripheral subsystem. The device for updating the configuration of the reference signal in this embodiment can be used as the modulation subsystem therein. Specifically, the modulation subsystem may include a processor 123 and an interface 124. The processor 123 completes the function of the above-mentioned processing module, and the interface 124 completes the function of the above-mentioned transceiver module. As another variation, the modulation subsystem includes a memory 126, a processor 123, and a program stored on the memory 126 and running on the processor. The processor 123 executes the program on the terminal device side in the above method embodiment. Methods. It should be noted that the memory 126 can be non-volatile or volatile, and its location can be located inside the modulation subsystem or in the processing device 120, as long as the memory 126 can be connected to the The processor 123 is sufficient.

The embodiment of the present application also provides a reference signal configuration update device, and the reference signal configuration update device may be a network device. The apparatus for updating the configuration of the reference signal may be used to perform the actions performed by the network device in the first embodiment of the above method.

The device for updating the configuration of the reference signal includes:

The transceiver module is used to send system information modification indication information in the system information modification period, and new system information is sent in the next system information modification period; the processing module is used to determine that the configuration of the reference signal has changed. The transceiver module is further configured to send second configuration information after determining a second period of time when the configuration of the reference signal changes, where the second configuration information includes the configuration of the reference signal. The transceiver module is further configured to send first indication information within a second period of time, where the first indication information is used to indicate that the configuration of the reference signal has changed. The second configuration information includes the configuration of the reference signal; the time when the second time period has elapsed after sending the first indication information is different from the system information modification period boundary point.

In the embodiment of the present application, the network device can send the second configuration information at the earliest possible time, update the configuration of the reference signal, and shorten the time delay between the network device discovering the need to send the second configuration information and actually starting to send the second configuration information.

The device for updating the configuration of the reference signal provided in this embodiment can also be used to execute the method in any possible implementation manner of the above method embodiment 1. For the specific content, please refer to the part of the action performed by the network device in the method embodiment 1. , I won’t repeat it here.

The embodiment of the present application also provides a reference signal configuration update device, and the reference signal configuration update device may be a network device. The device for updating the configuration of the reference signal can be used to perform the actions performed by the network device in the second embodiment of the above method.

The device for updating the configuration of the reference signal includes:

The processing module is configured to determine that the configuration of the reference signal has changed; the transceiver module is configured to send second configuration information after determining the second period of time when the configuration of the reference signal is changed, where the second configuration information includes the configuration of the reference signal ；

The transceiver module is further configured to send first indication information, the first indication information indicates that the configuration of the reference signal has changed; the transceiver module is also configured to send time information, and the time information is determined according to the second duration.

In this embodiment, at the moment when the configuration of the reference signal needs to be updated, the network device sends the first indication information to the terminal device and also sends the time information. According to the time information, the time when the network device sends the second configuration information can be determined, and the terminal device The time when the second configuration information is acquired, so as to stipulate the update timing of the configuration of the reference signal. Flexible setting of the time information can solve the problem of rigidity in the configuration update process of the reference signal, and at the same time can ensure the timeliness of the configuration update of the reference signal.

The device for updating the configuration of the reference signal provided in this embodiment can also be used to execute the method in any possible implementation manner of the second embodiment of the method. For the specific content, please refer to the part about the actions performed by the network device in the second method embodiment. The content will not be repeated here.

When the device for updating the configuration of the reference signal in this embodiment is a network device, the network device may be as shown in FIG. 13, and the device 130 includes one or more radio frequency units, such as a remote radio unit (RRU) 1310 and One or more baseband units 1320 (BBU) may also be referred to as digital units (DU). The RRU 1310 may be called a transceiver module. Optionally, the transceiver module may also be called a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 1311 and a radio frequency unit 1312. The RRU 1310 part is mainly used for receiving and sending radio frequency signals and converting radio frequency signals and baseband signals, for example, for sending instruction information to terminal equipment. The 1310 part of the BBU is mainly used for baseband processing, control of the base station, and so on. The RRU 1310 and the BBU 1320 may be physically set together, or may be physically separated, that is, a distributed base station.

The BBU 1320 is the control center of the base station, and may also be called a processing module, which may correspond to the processing module 820 in FIG. 8, and is mainly used to complete baseband processing functions, such as channel coding, multiplexing, modulation, and spreading. For example, the BBU (processing module) may be used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment, for example, to generate the foregoing indication information.

In an example, the BBU 1320 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network of a single access standard, or can respectively support radio access networks of different access standards ( Such as LTE network, 5G network or other networks). The BBU 1320 also includes a memory 1321 and a processor 1322. The memory 1321 is used to store necessary instructions and data. The processor 1322 is used to control the base station to perform necessary actions, for example, used to control the base station to execute the operation procedure of the network device in the foregoing method embodiment. The memory 1321 and the processor 1322 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.

The above are only specific implementations of this application, but the protection scope of this application is not limited to this. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in this application. Should be covered within the scope of protection of this application. Therefore, the protection scope of this application shall be subject to the protection scope of the claims.

Claims

A method for updating the configuration of a reference signal, which is characterized in that it includes:

Receiving first indication information, where the first indication information indicates that the configuration of the reference signal has changed;

In response to the first indication information, determining that the first configuration information is invalid, and the first configuration information includes the configuration of the reference signal;

After receiving the first duration of the first indication information, obtain second configuration information, where the second configuration information includes the configuration of the reference signal.
The method of claim 1, wherein determining that the first configuration information is invalid comprises: determining that a part of the first configuration information is invalid, and a part of the first configuration information is indicated by the first indication information .
The method according to claim 1 or 2, wherein determining that the first configuration information is invalid comprises: determining that a part of the first configuration information is invalid, and a part of the first configuration information is the same as that of the second configuration information. Configuration information compared to different parts.
The method according to any one of claims 1-3, further comprising:

The second configuration information is obtained through system information.
The method according to any one of claims 1 to 4, further comprising:

The reference signal is a channel state information reference signal or a tracking reference signal.
The method according to any one of claims 1-5, further comprising:

The first indication information is sent by the network device within a second duration, and the first duration is greater than or equal to the second duration.
The method according to any one of claims 1-6, further comprising:

Within the first time period, receiving second indication information, where the second indication information indicates that the configuration of the reference signal has changed;

After receiving the third duration of the second indication information, acquire the second configuration information.
The method according to any one of claims 1-6, further comprising:

Within the first time period, receive second indication information, and if the content of the second indication information is the same as the content of the first indication information, obtain the second configuration information after receiving the first time period of the first indication information.
The method according to any one of claims 1-8, further comprising:

The configuration of the reference signal is associated with a first field, and the first field is used to determine the validity of the configuration of the reference signal.
The method according to claim 9, wherein the terminal device receives system information, the system information includes the first field, and if the first field in the system message is the same as the first field stored by the terminal device If one field is the same, it is determined that the configuration of the reference signal of the terminal device is valid.
A method for updating the configuration of a reference signal, which is characterized in that it includes:

Send system information modification instruction information during the system information modification period, and send new system information in the next system information modification period;

It is determined that the configuration of the reference signal has changed, and the second configuration information is sent after the second period of time during which the configuration of the reference signal has changed is determined, where the second configuration information includes the configuration of the reference signal;

Sending first indication information within the second duration, where the first indication information is used to indicate that the configuration of the reference signal has changed;

The time when the second time period elapses after the configuration of the determination reference signal is changed is different from the boundary point of the system information modification period.
The method according to claim 11, wherein the first indication information is used to indicate that the first configuration information is invalid.
The method according to claim 12, wherein the first indication information is used to indicate that a part of the first configuration information is invalid, and a part of the first configuration information is indicated by the first indication information.
The method according to claim 12, wherein the first indication information is used to indicate that a part of the first configuration information is invalid, and a part of the first configuration information is different from the second configuration information part.
A method for updating the configuration of a reference signal, which is characterized in that it includes:

Receiving first indication information and time information, where the first indication information indicates that the configuration of the reference signal has changed;

The second configuration information is acquired at the first time, the first time is determined according to the time information, and the second configuration information includes the configuration of the reference signal.
The method according to claim 15, characterized by comprising:

The time information includes a time or a period of time, and the first time is determined according to the time or the period of time.
The method of claim 15 or 16, wherein:

The acquiring the second configuration information at the first time includes: acquiring the second configuration information through the system information at the first time.
The method according to any one of claims 15-17, wherein:

The configuration of the reference signal is associated with a first field, and the first field is used to determine the validity of the configuration of the reference signal.
A method for updating the configuration of a reference signal, which is characterized in that it includes:

Confirm that the configuration of the reference signal has changed;

Sending second configuration information after determining a second time period when the configuration of the reference signal changes, where the second configuration information includes the configuration of the reference signal;

Sending first indication information, where the first indication information indicates that the configuration of the reference signal has changed;

Send time information, where the time information is determined according to the second duration.
The method of claim 19, comprising:

The time information includes a time, and the time is a time when the second time period elapses after the configuration of the determination reference signal is changed.
The method of claim 19, wherein:

The time information includes a period of time, the period of time is determined according to a first period of time, the start of the first period is the moment when the first indication information is sent, and the end of the first period is the occurrence of the configuration of the determination reference signal The time when the second length of time has elapsed after the change.
A device for updating the configuration of a reference signal, which is characterized in that it comprises:

A transceiver module, configured to receive first indication information, where the first indication information indicates that the configuration of the reference signal has changed;

A processing module, configured to determine that first configuration information is invalid in response to the first indication information, where the first configuration information includes the configuration of the reference signal;

The transceiver module is further configured to obtain second configuration information after receiving the first duration of the first indication information, where the second configuration information includes the configuration of the reference signal.
The device of claim 22, wherein the processing module is configured to determine that the first configuration information is invalid, comprising: determining that a part of the first configuration information is invalid, and a part of the first configuration information is determined by the The first indication information indicates.
The device according to claim 22, wherein the processing module is configured to determine that the first configuration information is invalid, comprising: determining that a part of the first configuration information is invalid, and a part of the first configuration information is related to The second configuration information is compared to a different part.
The device according to any one of claims 22-24, wherein:

The second configuration information is obtained through system information.
The device according to any one of claims 22-25, further comprising:

The reference signal is a channel state information reference signal or a tracking reference signal.
The device according to any one of claims 22-26, further comprising:

The first indication information is sent by the network device within a second duration, and the first duration is greater than or equal to the second duration.
The device according to any one of claims 22-27, further comprising:

The transceiver module is configured to receive second indication information within the first time period, where the second indication information indicates that the configuration of the reference signal has changed;

The transceiver module is further configured to obtain the second configuration information after receiving the third duration of the second indication information.
The device for updating the configuration of a reference signal according to any one of claims 22-28, further comprising:

The transceiver module is configured to receive second indication information within the first time period, and if the content of the second indication information is the same as the content of the first indication information, the transceiver module is receiving the first indication information Obtain the second configuration information after the first period of time.
The device according to any one of claims 22-29, further comprising:

The configuration of the reference signal is associated with a first field, and the first field is used to determine the validity of the configuration of the reference signal.
The apparatus according to claim 30, wherein the transceiver module of the terminal device is used to receive system information, and the system information includes the first field. The first fields stored by the terminal device are the same, and it is determined that the configuration of the reference signal of the terminal device is valid.
A device for updating the configuration of a reference signal, which is characterized in that it comprises:

The transceiver module is used to send system information modification instruction information in the system information modification period, and send new system information in the next system information modification period;

The transceiver module is further configured to send first indication information, and send second configuration information after sending the first indication information for a second duration, where the second configuration information includes the configuration of the reference signal;

The time when the second period of time elapses after sending the first indication information is different from the boundary point of the system information modification period.
The device for updating the configuration of a reference signal according to claim 32, wherein the first indication information is used to indicate that the first configuration information is invalid.
The device according to claim 32 or 33, wherein the first indication information is used to indicate that a part of the first configuration information is invalid, and a part of the first configuration information is indicated by the first indication information .
The device according to any one of claims 32-34, wherein the first indication information is used to indicate that a part of the first configuration information is invalid, and a part of the first configuration information is related to the second configuration information. Information compared to different parts.
A device for updating the configuration of a reference signal is characterized in that it comprises:

A transceiver module, configured to receive first indication information and time information, where the first indication information indicates that the configuration of the reference signal has changed;

The transceiver module is configured to acquire second configuration information at a first time, where the first time is determined according to the time information, and the second configuration information includes the configuration of the reference signal.
The device of claim 36, comprising:

The time information includes a time or a period of time, and the first time is determined according to the time or the period of time.
The device according to claim 36 or 37, wherein:

The transceiver module, configured to acquire second configuration information at a first time, includes: the transceiver module, configured to acquire the second configuration information through system information at the first time.
The device according to any one of claims 36-38, wherein:

The configuration of the reference signal is associated with a first field, and the first field is used to determine the validity of the configuration of the reference signal.
A device for updating the configuration of a reference signal is characterized in that it comprises:

The processing module is used to determine that the configuration of the reference signal has changed;

A transceiver module, configured to send second configuration information after determining a second period of time when the configuration of the reference signal changes, where the second configuration information includes the configuration of the reference signal;

The transceiver module is configured to send first indication information, where the first indication information indicates that the configuration of the reference signal has changed;

The transceiver module is configured to send time information, and the time information is determined according to the second duration.
The device of claim 40, comprising:

The time information includes a time, and the time is a time when the second time period elapses after the configuration of the determination reference signal is changed.
The device of claim 40, wherein:

The time information includes a period of time, the period of time is determined according to a first period of time, the start of the first period is the moment when the first indication information is sent, and the end of the first period is the occurrence of the configuration of the determination reference signal The time when the second length of time has elapsed after the change.
A computer-readable storage medium having a computer program stored thereon, and the program is executed by a computer to implement the method according to any one of claims 1-10.
A computer-readable storage medium having a computer program stored thereon, and the program is executed by a computer to implement the method according to any one of claims 11-14.
A computer-readable storage medium having a computer program stored thereon, and the program is executed by a computer to implement the method of any one of claims 15-18.
A computer-readable storage medium having a computer program stored thereon, and the program is executed by a computer to implement the method according to any one of claims 19-21.
A communication device, characterized by comprising: a processor configured to execute instructions stored in a memory to implement the method according to any one of claims 1-10.
A communication device, characterized by comprising: a processor configured to execute instructions stored in a memory to implement the method according to any one of claims 11-14.
A communication device, comprising: a processor configured to execute instructions stored in a memory to implement the method according to any one of claims 15-18.
A communication device, characterized by comprising: a processor configured to execute instructions stored in a memory, so as to implement the method according to any one of claims 19-21.
A communication system, comprising the device described in any one of claims 22-31 and the device described in any one of claims 32-35.
A communication system, comprising the device described in any one of claims 36-39 and the device described in any one of claims 40-42.