WO2023231767A1

WO2023231767A1 - Timing advance value transmission method and apparatus, and storage medium

Info

Publication number: WO2023231767A1
Application number: PCT/CN2023/094499
Authority: WO
Inventors: 王雷; 许萌; 梁靖; 曾二林
Original assignee: 大唐移动通信设备有限公司
Priority date: 2022-05-31
Filing date: 2023-05-16
Publication date: 2023-12-07
Also published as: CN117202338A

Abstract

Provided in the embodiments of the present disclosure are a timing advance value transmission method and apparatus, and a storage medium. The method comprises: a terminal receiving, by means of a serving cell, a timing advance indication message, which is sent by a network device; and the terminal determining a timing advance value of a target cell on the basis of the timing advance indication message. In the timing advance value transmission method and apparatus and the storage medium provided in the embodiments of the present disclosure, when a terminal accesses a serving cell, the terminal determines a timing advance value of a target cell according to a timing advance indication message, which is sent by a base station, thereby reducing a handover delay.

Description

Timing advance value transmission method, device and storage medium

Cross-references to related applications

This application claims priority to the Chinese patent application with application number 2022106153024 and the invention title "Timing Advance Value Transmission Method, Device and Storage Medium" submitted on May 31, 2022, which is fully incorporated herein by reference.

Technical field

The present disclosure relates to the field of communication technology, and in particular, to a timing advance value transmission method, device and storage medium.

Background technique

In layer 3 handover, if the target cell and the source cell are not synchronized, the terminal needs to obtain uplink timing advance information through random access to complete uplink synchronization after handover from the source cell to the target cell, which introduces additional delay to the entire handover process.

Contents of the invention

Embodiments of the present disclosure provide a timing advance value transmission method, device, and storage medium to solve the technical problem of large switching delay in the prior art.

In a first aspect, an embodiment of the present disclosure provides a timing advance value transmission method, including:

The terminal receives the timing advance indication message sent by the network device through the serving cell;

The terminal determines the timing advance value of the target cell based on the timing advance indication message.

In some embodiments, the terminal determines the target based on the timing advance indication message. The timing advance value of the community includes:

In the case where the timing advance indication message indicates that the network device does not provide timing advance related parameters, the terminal uses the timing advance value of the serving cell as the timing advance value of the target cell.

In some embodiments, before the terminal determines the timing advance value of the target cell based on the timing advance indication message, the terminal further includes:

The terminal determines whether the timing advance indication message indicates that the network device does not provide timing advance related parameters.

In some embodiments, before the terminal uses the timing advance value of the serving cell as the timing advance value of the target cell, the terminal further includes:

The terminal obtains the timing advance value of the serving cell.

In some embodiments, before the terminal receives the timing advance indication message sent by the network device through the serving cell, the terminal further includes:

The terminal receives one or more timing advance related parameters sent by the network device.

In some embodiments, the terminal determines the timing advance value of the target cell based on the timing advance indication message, including:

The terminal determines the timing advance value of the target cell based on the last received timing advance related parameters.

The terminal decodes a channel resource carrying timing advance related parameters based on the timing advance indication message, and obtains the timing advance related parameters sent by the network device;

The terminal determines the timing advance value of the target cell based on the timing advance related parameters.

The terminal obtains timing advance related parameters sent by the network device based on the timing advance indication message;

In some embodiments, the timing advance indication message includes a MAC CE message, and the MAC CE message carries layer 2 cell change command information and the timing advance related parameters.

In some embodiments, the timing advance related parameters include one or more of the following parameters:

The timing advance value of the target cell;

The relative value relative to the timing advance value of the target cell obtained last time;

The relative value relative to the timing advance value of the serving cell;

Target cell identification information;

Target cell beam indication information.

In some embodiments, the message carrying the timing advance related parameters includes one or more of the following messages:

RRC message;

MAC CE message.

In some embodiments, the timing advance indication message includes one or more of the following messages:

DCI carrying layer 1 cell change command information;

MAC CE message carrying layer 2 cell change command information.

In a second aspect, embodiments of the present disclosure provide a timing advance value transmission method, including:

The network device sends a timing advance indication message to the terminal through the serving cell; the timing advance indication message is used to determine the timing advance value of the target cell.

In some embodiments, before sending the timing advance indication message to the terminal through the serving cell, the network device further includes:

When the timing advance value of the target cell changes, the network device sends timing advance related parameters to the terminal; the timing advance related parameters determine the timing advance value of the target cell.

In some embodiments, after the network device sends the timing advance indication message to the terminal through the serving cell, it further includes:

The network device schedules physical channel resources to send timing advance related parameters to the terminal; the timing advance related parameters determine the timing advance value of the target cell.

In a third aspect, embodiments of the present disclosure provide a terminal, including a memory, a transceiver, and a processor;

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

Receive timing advance indication messages sent by network equipment through the serving cell;

The timing advance value of the target cell is determined based on the timing advance indication message.

In some embodiments, determining the timing advance value of the target cell based on the timing advance indication message includes:

In the case where the timing advance indication message indicates that the network device does not provide timing advance related parameters, the timing advance value of the serving cell is used as the timing advance value of the target cell.

In some embodiments, before determining the timing advance value of the target cell based on the timing advance indication message, the method further includes:

Determine whether the timing advance indication message indicates that the network device does not provide timing advance related parameters.

In some embodiments, before using the timing advance value of the serving cell as the timing advance value of the target cell, the method further includes:

Obtain the timing advance value of the serving cell.

In some embodiments, the timing prompt sent by the network device is received through the serving cell. Before the pre-instruction message, also include:

Receive one or more timing advance related parameters sent by the network device.

The timing advance value of the target cell is determined based on the last received timing advance related parameters.

Decode the channel resources carrying timing advance related parameters based on the timing advance indication message, and obtain the timing advance related parameters sent by the network device;

The timing advance value of the target cell is determined based on the timing advance related parameters.

Obtain timing advance related parameters sent by the network device based on the timing advance indication message;

The timing advance value of the target cell;

The relative value relative to the timing advance value of the serving cell;

Target cell identification information;

Target cell beam indication information.

In some embodiments, the message carrying the timing advance related parameters includes the following message: one or more of the following:

RRC message;

MAC CE message.

DCI carrying layer 1 cell change command information;

MAC CE message carrying layer 2 cell change command information.

In a fourth aspect, embodiments of the present disclosure provide a network device, including a memory, a transceiver, and a processor;

A timing advance indication message is sent to the terminal through the serving cell; the timing advance indication message is used to determine the timing advance value of the target cell.

In some embodiments, before sending the timing advance indication message to the terminal through the serving cell, the method further includes:

When the timing advance value of the target cell changes, timing advance related parameters are sent to the terminal; the timing advance related parameters determine the timing advance value of the target cell.

In some embodiments, after sending the timing advance indication message to the terminal through the serving cell, the method further includes:

Scheduling physical channel resources to send timing advance related parameters to the terminal; the timing advance related parameters determine the timing advance value of the target cell.

In a fifth aspect, an embodiment of the present disclosure provides a timing advance value transmission device, including:

The first sending module is used to receive the timing advance indication message sent by the network device through the serving cell;

A first determination module, configured to determine the target cell's location based on the timing advance indication message. Timing advance value.

In some embodiments, the first determination module is specifically configured to use the timing advance value of the serving cell as the target when the timing advance indication message indicates that the network device does not provide timing advance related parameters. The timing advance value of the cell.

In some embodiments, the device further includes a judgment module;

The judgment module is used to judge whether the timing advance indication message indicates that the network device does not provide timing advance related parameters.

In some embodiments, the device further includes a first acquisition module;

The first acquisition module is used to acquire the timing advance value of the serving cell.

In some embodiments, the device further includes a first receiving module;

The first receiving module is configured to receive one or more timing advance related parameters sent by the network device.

In some embodiments, the first determination module is specifically configured to determine the timing advance value of the target cell based on the last received timing advance related parameters.

In some embodiments, the first determination module includes a first acquisition unit and a first determination unit;

The first acquisition unit is configured to decode the channel resources carrying timing advance related parameters based on the timing advance indication message, and obtain the timing advance related parameters sent by the network device;

The first determining unit is configured to determine the timing advance value of the target cell based on the timing advance related parameters.

In some embodiments, the first determination module includes a second acquisition unit and a second determination unit;

The second acquisition unit is configured to acquire timing advance related parameters sent by the network device based on the timing advance indication message;

The second determining unit is configured to determine the timing advance value of the target cell based on the timing advance related parameters.

The timing advance value of the target cell;

The relative value relative to the timing advance value of the serving cell;

Target cell identification information;

Target cell beam indication information.

RRC message;

MAC CE message.

DCI carrying layer 1 cell change command information;

MAC CE message carrying layer 2 cell change command information.

In a sixth aspect, an embodiment of the present disclosure provides a timing advance value transmission device, including:

The second sending mode is used to send a timing advance indication message to the terminal through the serving cell; the timing advance indication message is used to determine the timing advance value of the target cell.

In some embodiments, the device further includes a third sending module;

When the timing advance value of the target cell changes, the third sending module is configured to send timing advance related parameters to the terminal; the timing advance related parameters determine the timing advance value of the target cell.

In some embodiments, the device further includes a fourth sending module;

The fourth sending module is used to schedule physical channel resources to send timing to the terminal. Advance related parameters; the timing advance related parameters determine the timing advance value of the target cell.

In a seventh aspect, embodiments of the present disclosure further provide a processor-readable storage medium that stores a computer program, and the computer program is used to cause the processor to execute the first or third aspect as described above. The timing advance value transmission method described in the second aspect.

In an eighth aspect, embodiments of the present disclosure further provide a computer-readable storage medium, which stores a computer program, and the computer program is used to cause a computer to execute the first aspect or the second aspect as described above. The timing advance value transmission method described above.

In a ninth aspect, embodiments of the present disclosure further provide a communication device-readable storage medium that stores a computer program, and the computer program is used to cause the communication device to execute the first or third aspect as described above. The timing advance value transmission method described in the second aspect.

In a tenth aspect, embodiments of the present disclosure also provide a chip product-readable storage medium. The chip product-readable storage medium stores a computer program. The computer program is used to cause the chip product to execute the first aspect or the third aspect as described above. The timing advance value transmission method described in the second aspect.

Embodiments of the present disclosure provide a timing advance value transmission method, device and storage medium. When a terminal accesses a serving cell, it determines the timing advance value of the target cell based on the timing advance indication message sent by the base station, thereby reducing the handover delay. .

Description of the drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, a brief introduction will be made below to the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description These are some embodiments of the present disclosure. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting creative efforts.

Figure 1 is one of the flow diagrams of a timing advance value transmission method provided by an embodiment of the present disclosure;

Figure 2 is a second schematic flowchart of the timing advance value transmission method provided by an embodiment of the present disclosure;

Figure 3 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

Figure 4 is a schematic structural diagram of a network device provided by an embodiment of the present disclosure;

Figure 5 is one of the structural schematic diagrams of a timing advance value transmission device provided by an embodiment of the present disclosure;

FIG. 6 is a second structural schematic diagram of a timing advance value transmission device provided by an embodiment of the present disclosure.

Detailed ways

Timing advance is the advance amount of the terminal's uplink transmission relative to the terminal's downlink reception. It is used for the terminal and the base station to complete the uplink synchronization and ensure the timing alignment of the uplink signals sent by the terminals at different distances from the base station to reach the base station. In the traditional cell change scenario, the terminal needs to trigger the random access process, send the preamble sequence (preamble) to the base station, and obtain the initial timing advance information of the target cell by receiving the random access response sent by the base station.

Specifically, in layer 3-based cell handover, when the terminal chooses to switch to a target cell that is not synchronized with the current serving cell, the base station carries relevant configuration information for the terminal to initiate random access in the target cell in the synchronization reconfiguration message, and then After accessing the target cell, the terminal initiates random access to obtain uplink synchronization, and the random access process introduces additional delay in the entire handover process.

In the present disclosure, mobility based on layer 1/layer 2 allows the terminal to obtain some configuration information of the candidate cell in advance to reduce the delay problem in the change of the serving cell.

In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments These are only some of the embodiments of the present disclosure, but not all of them. Based on the embodiments in this disclosure, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to this disclosure. scope of protection.

Figure 1 is one of the flow diagrams of a timing advance value transmission method provided by an embodiment of the present disclosure. As shown in Figure 1, an embodiment of the present disclosure provides a timing advance value transmission method, and the execution subject can be a terminal, such as a mobile phone, etc. . The method includes:

Step 101: The terminal receives the timing advance indication message sent by the network device through the serving cell.

Specifically, in the embodiment of the present disclosure, the serving cell is only the cell that is currently providing communication services to the terminal.

The network equipment can be a base station or a core network element.

The timing advance indication message may carry timing advance related parameters related to the target cell, or may not carry timing advance related parameters related to the target cell.

The timing advance indication message can be carried through downlink control information (Downlink Control Information, DCI), and can also be carried through media access control control unit (Media Access Control Control Element, MAC CE) message.

The network device sends a timing advance indication message to the terminal through the serving cell.

The terminal receives the timing advance indication message sent by the network device through the serving cell.

Step 102: The terminal determines the timing advance value of the target cell based on the timing advance indication message.

Specifically, in the embodiment of the present disclosure, after the terminal obtains the timing advance indication message, the terminal determines the timing advance value of the target cell based on the timing advance indication message.

For example, when the timing advance indication message indicates that the network device does not provide timing advance related parameters related to the target cell, the terminal uses the timing advance value of the serving cell as the timing advance value of the target cell.

For example, in the case where the timing advance indication message instructs the network device to provide timing advance related parameters related to the target cell, the terminal can obtain the timing advance related parameters based on the timing advance indication message, and determine the timing of the target cell based on the timing advance related parameters. Advance value.

Embodiments of the present disclosure provide a timing advance value transmission method. When a terminal accesses a serving cell, the terminal determines the timing advance value of the target cell based on the timing advance indication message sent by the base station, thereby reducing handover delay.

The terminal obtains the timing advance value of the serving cell.

Specifically, in the embodiment of the present disclosure, the terminal has obtained the timing advance value of the serving cell.

After obtaining the timing advance indication message sent by the network device, the terminal needs to determine whether the timing advance indication message indicates that the network device does not provide timing advance related parameters.

In the case where the timing advance indication message indicates that the network device does not provide timing advance related parameters related to the target cell, the terminal uses the timing advance value of the serving cell as the timing advance value of the target cell.

Embodiments of the present disclosure provide a timing advance value transmission method. When the terminal receives a timing advance indication message through the serving cell indicating that the network device does not provide timing advance related parameters related to the target cell, the terminal uses the timing advance of the serving cell. The value is used as the timing advance value of the target cell, which reduces signaling overhead.

In some embodiments, the terminal receives the customized information sent by the network device through the serving cell. When advance instructions are preceded by a message, it also includes:

Specifically, in the embodiment of the present disclosure, when the timing advance value of the target cell changes, the network device sends the timing advance related parameters to the terminal.

When the terminal receives a timing advance related parameter sent by the network device, the terminal determines the timing advance value of the target cell based on the timing advance related parameter.

In the case where the terminal receives multiple timing advance related parameters sent by the network device, the terminal determines the timing advance value of the target cell based on the last received timing advance related parameter.

For example, the time for the terminal to obtain the timing advance related parameters of the target cell is before the terminal receives the layer 1 or layer 2 cell change command. The terminal can obtain the timing advance related parameters through the Radio Resource Control (RRC) message. The RRC message sent by the network device carries the timing advance related parameters of the target cell. The terminal can obtain the timing advance related parameters through the MAC CE message. The MAC CE message sent by the network device carries the timing advance related parameters of the target cell. After receiving the cell change command of layer 1 or layer 2, the terminal uses the obtained timing advance related parameters to determine the timing advance value of the target cell.

Embodiments of the present disclosure provide a timing advance value transmission method. The terminal receives timing advance related parameters related to the target cell through the serving cell, and then determines the timing advance value of the target cell based on the timing advance related parameters, thereby reducing handover delay.

Specifically, in the embodiment of the present disclosure, after the network device sends the timing advance indication message to the terminal through the serving cell, the network device sends timing advance related parameters to the terminal by scheduling physical channel resources. The physical channel resources may be physical downlink shared channel resources.

After the terminal obtains the timing advance indication message, the terminal decodes the channel resource carrying the timing advance related parameters according to the scheduling information sent by the network device, and obtains the timing advance related parameters of the target cell.

Then, the terminal determines the timing advance value of the target cell based on the timing advance related parameters.

For example, the time when the terminal obtains the timing advance related parameters is when the terminal receives the layer 1 cell change command. The layer 1 cell change command received by the terminal may contain 1 bit indicating that the cell change command carries timing advance related parameters, or the layer 1 cell change command received by the terminal does not contain information on whether the cell change command carries timing advance related parameters. Indicate bit. After the terminal receives the DCI-based layer 1 cell change command, the terminal decodes the RRC message or MAC CE message in the physical downlink shared channel to obtain the timing advance related parameters of the target cell. Then, the terminal determines the timing of the target cell based on the timing advance related parameters. Advance value.

Embodiments of the present disclosure provide a timing advance value transmission method. When a terminal accesses a serving cell, it obtains timing advance related parameters related to the target cell when receiving a layer 1 cell change command, and then determines the target based on the timing advance related parameters. The timing advance value of the cell thus reduces the handover delay.

The terminal obtains the information sent by the network device based on the timing advance indication message. Timing advance related parameters;

Specifically, after the terminal obtains the timing advance indication message, the terminal obtains the timing advance related parameters sent by the network device based on the timing advance indication message.

Optionally, the timing advance indication message includes a MAC CE message, which carries layer 2 cell change command information and timing advance related parameters.

Optionally, the timing advance indication message includes two MAC CE messages, one of which carries layer 2 cell change command information, and the other MAC CE message carries timing advance related parameters.

For example, the time when the terminal obtains the timing advance related parameters is when the terminal receives the layer 2 cell change command. The layer 2 cell change command received by the terminal may contain a 1 bit indicating that the cell change command carries timing advance related parameters, or the layer 2 cell change command received by the terminal does not contain an indication bit regarding whether the cell change command carries timing advance related parameters. After the terminal receives the layer 2 cell change command based on the MAC CE message, the terminal decodes the MAC CE message used for the layer 2 cell change command in the physical downlink shared channel to obtain the timing advance related parameters of the target cell. Then, the terminal advances the related parameters based on the timing advance. The parameter determines the timing advance value of the target cell.

For example, the time when the terminal obtains the timing advance related parameters is when the terminal receives the layer 2 cell change command. The layer 2 cell change command received by the terminal may contain a 1 bit indicating that the cell change command carries timing advance related parameters, or the layer 2 cell change command received by the terminal does not contain an indication bit regarding whether the cell change command carries timing advance related parameters. The terminal decodes a MAC CE message in the physical downlink shared channel to determine the layer 2 cell change. After confirming the layer 2 cell change command, the terminal decodes another MAC CE message in the physical downlink shared channel to obtain the timing advance related parameters of the target cell. Then, the terminal determines the timing advance value of the target cell based on the timing advance related parameters. .

Embodiments of the present disclosure provide a timing advance value transmission method. When a terminal accesses a serving cell, it obtains timing advance related parameters related to the target cell when receiving a layer 2 cell change command, and then determines the target based on the timing advance related parameters. The timing advance value of the cell thus reduces the handover delay.

The timing advance value of the target cell;

The relative value relative to the timing advance value of the serving cell;

Target cell identification information;

Target cell beam indication information.

Specifically, the timing advance value of the target cell can be understood as the absolute timing advance value of the target cell.

The relative value relative to the timing advance value of the target cell obtained last time refers to the difference between the timing advance value of the current target cell and the timing advance value of the target cell obtained last time.

For example, the timing advance value of the target cell obtained last time by the terminal is 1 unit. If the relative value to the timing advance value of the target cell obtained last time is 2 units, the terminal can determine the target obtained this time. The timing advance value of the cell is 3 units; if the relative value to the timing advance value of the target cell obtained last time is -1 unit, the terminal can determine that the timing advance value of the target cell obtained this time is 0. .

The relative value relative to the timing advance value of the serving cell refers to the difference between the timing advance value of the current target cell and the timing advance value of the serving cell.

For example, the timing advance value of the serving cell obtained by the terminal is 5 units. If the relative value of the timing advance value of the serving cell is 3 units, the terminal can determine that the timing advance value of the target cell obtained this time is 8 units; if the relative value of the timing advance value of the serving cell is -3 units unit, the terminal can determine that the timing advance value of the target cell obtained this time is 2 units.

Embodiments of the present disclosure provide a timing advance value transmission method. When a terminal accesses a serving cell, it determines the timing advance value of the target cell based on the timing advance indication message sent by the base station, thereby reducing handover delay.

RRC message;

MAC CE message.

For example, after the terminal receives the DCI-based layer 1 cell change command, the terminal decodes the RRC message or MAC CE message in the physical downlink shared channel to obtain the timing advance related parameters of the target cell. Then, the terminal determines the target cell based on the timing advance related parameters. timing advance value.

For example, after the terminal receives the layer 2 cell change command based on the MAC CE message, the terminal decodes the MAC CE message used for the layer 2 cell change command in the physical downlink shared channel to obtain the timing advance related parameters of the target cell, and then, based on the timing The advance related parameters determine the timing advance value of the target cell.

DCI carrying layer 1 cell change command information;

MAC CE message carrying layer 2 cell change command information.

Specifically, the timing advance indication message can be carried through DCI or through MAC. CE message bearer.

For example, DCI carrying layer 1 cell change command information.

For example, a MAC CE message carrying layer 2 cell change command information.

Figure 2 is a second schematic flowchart of a timing advance value transmission method provided by an embodiment of the present disclosure. As shown in Figure 2, an embodiment of the present disclosure provides a timing advance value transmission method, and the execution subject may be a network device, such as a base station. wait. The method includes:

Step 201: The network device sends a timing advance indication message to the terminal through the serving cell; the timing advance indication message is used to determine the timing advance value of the target cell.

The network device schedules advance-related parameters when sending physical channel resources to the terminal; the timing advance-related parameters determine the timing advance value of the target cell.

Specifically, the timing advance value transmission method provided by the embodiments of the present disclosure can be referred to the above-mentioned embodiment of the timing advance value transmission method in which the execution subject is a terminal, and can achieve the same technical effect. The above-mentioned corresponding methods in this embodiment will no longer be explained. The same parts and beneficial effects of the method embodiments will be described in detail.

Figure 3 is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure. As shown in Figure 3, the terminal includes a memory 320, a transceiver 300, and a processor 310, where:

Memory 320 for storing computer programs; transceiver 300 for Send and receive data under the control of the processor 310; the processor 310 is used to read the computer program in the memory 320 and perform the following operations:

Specifically, the transceiver 300 is used to receive and send data under the control of the processor 310.

In FIG. 3 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 310 and various circuits of the memory represented by memory 320 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides the interface. The transceiver 300 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media. For different user equipment, the user interface 330 can also be an interface capable of externally connecting internal and external required equipment. The connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, etc.

The processor 310 is responsible for managing the bus architecture and general processing, and the memory 320 can store data used by the processor 310 when performing operations.

In some embodiments, the processor 310 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA), or a complex programmable logic device. (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.

The processor is configured to execute any of the methods provided by the embodiments of the present disclosure according to the obtained executable instructions by calling the computer program stored in the memory. The processor and memory can also be physically separated.

In some embodiments, the target cell is determined based on the timing advance indication message. timing advance value, including:

Obtain the timing advance value of the serving cell.

In some embodiments, before receiving the timing advance indication message sent by the network device through the serving cell, the method further includes:

The timing advance value of the target cell;

Relative to the timing advance value of the target cell obtained last time;

Timing advance value relative to the serving cell;

Target cell identification information;

Target cell beam indication information.

RRC message;

MAC CE message.

DCI carrying layer 1 cell change command information;

MAC CE message carrying layer 2 cell change command information.

It should be noted here that the above-mentioned terminal provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is the terminal, and can achieve the same technical effect. No further explanation will be given here. The same parts and beneficial effects as those in the method embodiment will be described in detail.

Figure 4 is a schematic structural diagram of a network device provided by an embodiment of the present disclosure. As shown in Figure 4, the network device includes a memory 420, a transceiver 400, and a processor 410, where:

Memory 420 for storing computer programs; transceiver 400 for Send and receive data under the control of the processor 410; the processor 410 is used to read the computer program in the memory 420 and perform the following operations:

Specifically, the transceiver 400 is used to receive and send data under the control of the processor 410.

In FIG. 4 , the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 410 and various circuits of the memory represented by memory 420 are linked together. The bus architecture can also link together various other circuits such as peripherals, voltage regulators, and power management circuits, which are all well known in the art and therefore will not be described further herein. The bus interface provides the interface. The transceiver 400 may be a plurality of components, including a transmitter and a receiver, providing a unit for communicating with various other devices over transmission media, including wireless channels, wired channels, optical cables, and other transmission media. The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 can store data used by the processor 410 when performing operations.

The processor 410 may be a central processing unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), the processor can also adopt a multi-core architecture.

Advance relevant parameters when scheduling physical channel resources to be sent to the terminal; the timing advance The relevant parameters determine the timing advance value of the target cell.

Specifically, the above-mentioned network device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is the network device, and can achieve the same technical effect. The method in this embodiment will no longer be compared. The same parts and beneficial effects of the embodiments will be described in detail.

Figure 5 is one of the structural schematic diagrams of a timing advance value transmission device provided by an embodiment of the present disclosure. As shown in Figure 5, an embodiment of the present disclosure provides a timing advance value transmission device, including a first sending module 501 and a first Determine module 502, wherein:

The first sending module 501 is configured to receive the timing advance indication message sent by the network device through the serving cell; the first determining module 502 is configured to determine the timing advance value of the target cell based on the timing advance indication message.

In some embodiments, the device further includes a judgment module;

In some embodiments, the device further includes a first acquisition module;

In some embodiments, the device further includes a first receiving module;

The first acquisition unit is configured to decode bearer timing based on the timing advance indication message. Channel resources for timing advance related parameters, and obtain timing advance related parameters sent by the network device;

The timing advance value of the target cell;

Relative to the timing advance value of the target cell obtained last time;

Timing advance value relative to the serving cell;

Target cell identification information;

Target cell beam indication information.

RRC message;

MAC CE message.

DCI carrying layer 1 cell change command information;

MAC CE message carrying layer 2 cell change command information.

Specifically, the above-mentioned timing advance value transmission device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is a terminal, and can achieve the same technical effect. No further explanation will be given in this embodiment. The same parts and beneficial effects as those in the method embodiment will be described in detail.

FIG. 6 is a second structural schematic diagram of a timing advance value transmission device provided by an embodiment of the present disclosure. As shown in FIG. 6 , an embodiment of the present disclosure provides a timing advance value transmission device, including a second sending module 601 .

The second sending mode 601 is used to send a timing advance indication message to the terminal through the serving cell; the timing advance indication message is used to determine the timing advance value of the target cell.

In some embodiments, the device further includes a third sending module;

In some embodiments, the device further includes a fourth sending module;

The fourth sending module is used to schedule advance related parameters when sending physical channel resources to the terminal; the timing advance related parameters determine the timing advance value of the target cell.

Specifically, the above-mentioned timing advance value transmission device provided by the embodiment of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiment in which the execution subject is a network device, and can achieve the same technical effect. This embodiment will no longer be discussed. The same parts and beneficial effects as those in the method embodiments will be described in detail.

It should be noted that the division of units/modules in the above-mentioned embodiments of the present disclosure is schematic and is only a logical function division. In actual implementation, there may be other division methods. In addition, each functional unit in various embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit. The above integrated units can be implemented in the form of hardware or software functional units.

If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it may be stored in a processor-readable storage medium. Based on this understanding, the technical solution of the present disclosure is essentially or contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium , including several instructions to cause a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in various embodiments of the present disclosure. The aforementioned storage media include: U disk, mobile hard disk, read-only memory (ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code. .

In some embodiments, a computer-readable storage medium is also provided. The computer-readable storage medium stores a computer program. The computer program is used to cause the computer to execute the timing advance value transmission method provided by the above method embodiments.

Specifically, the above-mentioned computer-readable storage medium provided by the embodiments of the present disclosure can implement all the method steps implemented by the above-mentioned method embodiments, and can achieve the same technical effect. No further reference will be made here to the method embodiments in this embodiment. The same parts and beneficial effects will be described in detail.

It should be noted that the computer-readable storage medium may be any available medium or data storage device that the processor can access, including but not limited to magnetic memory (such as floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), Optical memory (such as CD, DVD, BD, HVD, etc.), and semiconductor memory (such as ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid state drive (SSD)), etc.

In addition, it should be noted that in the embodiments of the present disclosure, the terms "first", "second", etc. are used to distinguish similar objects and are not used to describe a specific order or sequence. It is to be understood that the terms so used are interchangeable under appropriate circumstances so that embodiments of the present disclosure can be practiced in sequences other than those illustrated or described herein, and that "first" and "second" are distinguished objects Usually a category, the number of objects is not limited, for example, the first object can be One, or multiple.

In the embodiment of the present disclosure, the term "and/or" describes the association relationship of associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A exists alone, A and B exist simultaneously, and B exists alone. these three situations. The character "/" generally indicates that the related objects are in an "or" relationship.

In the embodiment of this disclosure, the term "plurality" refers to two or more than two, and other quantifiers are similar to it.

The technical solutions provided by the embodiments of the present disclosure can be applied to a variety of systems, especially 5G systems. For example, applicable systems can be global system of mobile communication (GSM) system, code division multiple access (code division multiple access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) general packet Wireless service (general packet radio service, GPRS) system, long term evolution (long term evolution, LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD) system, Advanced long term evolution (long term evolution advanced, LTE-A) system, universal mobile telecommunication system (UMTS), global interoperability for microwave access (WiMAX) system, 5G New Radio, NR) system, etc. These various systems include terminal equipment and network equipment. The system can also include core network parts, such as the Evolved Packet System (EPS), 5G system (5GS), etc.

The terminal device involved in the embodiments of the present disclosure may be a device that provides voice and/or data connectivity to users, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. In different systems, the names of terminal equipment may also be different. For example, in a 5G system, the terminal equipment may be called User Equipment (UE). Wireless terminal equipment can communicate with one or more core networks (Core Network, CN) via the Radio Access Network (RAN). According to the information, the wireless terminal device may be a mobile terminal device, such as a mobile phone (also known as a "cellular" phone) and a computer with a mobile terminal device, for example, it may be a portable, pocket-sized, handheld, computer-built-in or vehicle-mounted mobile phone. Devices that exchange voice and/or data with the radio access network. For example, Personal Communication Service (PCS) phones, cordless phones, Session Initiated Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants, PDA) and other equipment. Wireless terminal equipment may also be called a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, or an access point. , remote terminal equipment (remote terminal), access terminal equipment (access terminal), user terminal equipment (user terminal), user agent (user agent), user device (user device), are not limited in the embodiments of the present disclosure.

The network device involved in the embodiment of the present disclosure may be a base station, and the base station may include multiple cells that provide services for terminals. Depending on the specific application, a base station can also be called an access point, or it can be a device in the access network that communicates with wireless terminal equipment through one or more sectors on the air interface, or it can be named by another name. The network device may be used to exchange received air frames with Internet Protocol (IP) packets and act as a router between the wireless terminal device and the rest of the access network, where the remainder of the access network may include the Internet Protocol (IP) communication network. Network devices also coordinate attribute management of the air interface. For example, the network equipment involved in the embodiments of the present disclosure may be a network equipment (Base Transceiver Station, BTS) in Global System for Mobile communications (GSM) or Code Division Multiple Access (CDMA). ), or it can be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), or an evolutionary network device in a long term evolution (LTE) system (evolutional Node B, eNB or e-NodeB), a 5G base station (gNB) in the 5G network architecture (next generation system), or a home evolution base station (Home evolved Node B (HeNB), relay node (relay node), home base station (femto), pico base station (pico), etc., are not limited in the embodiments of the present disclosure. In some network structures, network devices may include centralized unit (CU) nodes and distributed unit (DU) nodes, and the centralized units and distributed units may also be arranged geographically separately.

“Determining B based on A” in this disclosure means that the factor A should be considered when determining B. It is not limited to "B can be determined based on A alone", but also includes: "B is determined based on A and C", "B is determined based on A, C and E", "C is determined based on A, and B is further determined based on C" wait. In addition, it can also include taking A as a condition for determining B, for example, "When A meets the first condition, use the first method to determine B"; another example, "When A meets the second condition, determine B", etc.; another example , "When A meets the third condition, determine B based on the first parameter" and so on. Of course, it can also be a condition that uses A as a factor to determine B, for example, "when A meets the first condition, use the first method to determine C, and further determine B based on C" and so on.

Network equipment and terminal equipment can each use one or more antennas for Multi-Input Multi-Output (MIMO) transmission. MIMO transmission can be single-user MIMO (Single User MIMO, SU-MIMO) or multi-user MIMO. (Multiple User MIMO, MU-MIMO). Depending on the shape and number of root antenna combinations, MIMO transmission can be 2D-MIMO, 3D-MIMO, FD-MIMO or massive-MIMO, or it can be diversity transmission, precoding transmission or beamforming transmission, etc.

Those skilled in the art will appreciate that embodiments of the present disclosure may be provided as methods, systems, or computer program products. Accordingly, the present disclosure may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment that combines software and hardware aspects. Furthermore, the present disclosure may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, magnetic disk storage, optical storage, and the like) embodying computer-usable program code therein.

The disclosure is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the disclosure. It should be understood that the computer-executable The line of instructions implements each process and/or block in the flowchart and/or block diagram, and a combination of processes and/or blocks in the flowchart and/or block diagram. These computer-executable instructions may be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing device to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing device produce Means for implementing the functions specified in a process or processes of a flowchart and/or a block or blocks of a block diagram.

These processor-executable instructions may also be stored in a processor-readable memory that causes a computer or other programmable data processing apparatus to operate in a particular manner, such that the generation of instructions stored in the processor-readable memory includes the manufacture of the instruction means product, the instruction device implements the function specified in one process or multiple processes in the flow chart and/or one block or multiple blocks in the block diagram.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce computer-implemented processing, thereby causing the computer or other programmable device to The instructions that are executed provide steps for implementing the functions specified in a process or processes of the flowchart diagrams and/or a block or blocks of the block diagrams.

Obviously, those skilled in the art can make various changes and modifications to the present disclosure without departing from the spirit and scope of the disclosure. In this way, if these modifications and variations of the present disclosure fall within the scope of the claims of the present disclosure and equivalent technologies, the present disclosure is also intended to include these modifications and variations.

Claims

A timing advance value transmission method, including:

The terminal receives the timing advance indication message sent by the network device through the serving cell;

The terminal determines the timing advance value of the target cell based on the timing advance indication message.
The timing advance value transmission method according to claim 1, wherein the terminal determines the timing advance value of the target cell based on the timing advance indication message, including:

In the case where the timing advance indication message indicates that the network device does not provide timing advance related parameters, the terminal uses the timing advance value of the serving cell as the timing advance value of the target cell.
The timing advance value transmission method according to claim 2, wherein before the terminal determines the timing advance value of the target cell based on the timing advance indication message, it further includes:

The terminal determines whether the timing advance indication message indicates that the network device does not provide timing advance related parameters.
The timing advance value transmission method according to claim 2, wherein before the terminal uses the timing advance value of the serving cell as the timing advance value of the target cell, the terminal further includes:

The terminal obtains the timing advance value of the serving cell.
The timing advance value transmission method according to claim 1, wherein before the terminal receives the timing advance indication message sent by the network device through the serving cell, it further includes:

The terminal receives one or more timing advance related parameters sent by the network device.
The timing advance value transmission method according to claim 5, wherein the terminal determines the timing advance value of the target cell based on the timing advance indication message, including:

The terminal determines the timing advance value of the target cell based on the last received timing advance related parameters.
The timing advance value transmission method according to claim 1, wherein the terminal determines the timing advance value of the target cell based on the timing advance indication message, including:

The terminal decodes a channel resource carrying timing advance related parameters based on the timing advance indication message, and obtains the timing advance related parameters sent by the network device;

The terminal determines the timing advance value of the target cell based on the timing advance related parameters.
The timing advance value transmission method according to claim 1, wherein the terminal determines the timing advance value of the target cell based on the timing advance indication message, including:

The terminal obtains timing advance related parameters sent by the network device based on the timing advance indication message;

The terminal determines the timing advance value of the target cell based on the timing advance related parameters.
The timing advance value transmission method according to claim 8, wherein the timing advance indication message includes a MAC CE message, and the MAC CE message carries layer 2 cell change command information and the timing advance related parameters.
The timing advance value transmission method according to any one of claims 5 to 9, wherein the timing advance related parameters include one or more of the following parameters:

The timing advance value of the target cell;

The relative value relative to the timing advance value of the target cell obtained last time;

The relative value relative to the timing advance value of the serving cell;

Target cell identification information;

Target cell beam indication information.
The timing advance value transmission method according to any one of claims 5 to 9, wherein the message carrying the timing advance related parameters includes one or more of the following messages:

RRC message;

MAC CE message.
The timing advance value transmission method according to any one of claims 5 to 9, wherein the timing advance indication message includes one or more of the following messages:

DCI carrying layer 1 cell change command information;

MAC CE message carrying layer 2 cell change command information.
A timing advance value transmission method, including:

The network device sends a timing advance indication message to the terminal through the serving cell; the timing advance indication message is used to determine the timing advance value of the target cell.
The timing advance value transmission method according to claim 13, wherein before the network device sends the timing advance indication message to the terminal through the serving cell, it further includes:

When the timing advance value of the target cell changes, the network device sends timing advance related parameters to the terminal; the timing advance related parameters determine the timing advance value of the target cell.
The timing advance value transmission method according to claim 13, wherein after the network device sends the timing advance indication message to the terminal through the serving cell, it further includes:

The network device schedules physical channel resources to send timing advance related parameters to the terminal; the timing advance related parameters determine the timing advance value of the target cell.
A terminal includes a memory, a transceiver, and a processor;

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

Receive timing advance indication messages sent by network equipment through the serving cell;

The timing advance value of the target cell is determined based on the timing advance indication message.
The terminal according to claim 16, wherein the determining the timing advance value of the target cell based on the timing advance indication message includes:

In the case where the timing advance indication message indicates that the network device does not provide timing advance related parameters, the timing advance value of the serving cell is used as the timing advance value of the target cell.
The terminal according to claim 17, wherein before determining the timing advance value of the target cell based on the timing advance indication message, the method further includes:

Determine whether the timing advance indication message indicates that the network device does not provide timing advance related parameters.
The terminal according to claim 17, wherein before using the timing advance value of the serving cell as the timing advance value of the target cell, the step further includes:

Obtain the timing advance value of the serving cell.
The terminal according to claim 16, wherein before receiving the timing advance indication message sent by the network device through the serving cell, it further includes:

Receive one or more timing advance related parameters sent by the network device.
The terminal according to claim 20, wherein the determining the timing advance value of the target cell based on the timing advance indication message includes:

The timing advance value of the target cell is determined based on the last received timing advance related parameters.
The terminal according to claim 16, wherein the determining the timing advance value of the target cell based on the timing advance indication message includes:

Decode the channel resources carrying timing advance related parameters based on the timing advance indication message, and obtain the timing advance related parameters sent by the network device;

The timing advance value of the target cell is determined based on the timing advance related parameters.
The terminal according to claim 16, wherein the determining the timing advance value of the target cell based on the timing advance indication message includes:

Obtain timing advance related parameters sent by the network device based on the timing advance indication message;

The timing advance value of the target cell is determined based on the timing advance related parameters.
The terminal according to claim 23, wherein the timing advance indication message includes a MAC CE message, and the MAC CE message carries layer 2 cell change command information and the timing advance related parameters.
The terminal according to any one of claims 20 to 24, wherein the timing advance related parameters include one or more of the following parameters:

The timing advance value of the target cell;

The relative value relative to the timing advance value of the target cell obtained last time;

The relative value relative to the timing advance value of the serving cell;

Target cell identification information;

Target cell beam indication information.
The terminal according to any one of claims 20 to 24, wherein the message carrying the timing advance related parameters includes one or more of the following messages:

RRC message;

MAC CE message.
The terminal according to any one of claims 20 to 24, wherein the timing advance indication message includes one or more of the following messages:

DCI carrying layer 1 cell change command information;

MAC CE message carrying layer 2 cell change command information.
A network device including a memory, a transceiver, and a processor;

Memory, used to store computer programs; transceiver, used to send and receive data under the control of the processor; processor, used to read the computer program in the memory and perform the following operations:

A timing advance indication message is sent to the terminal through the serving cell; the timing advance indication message is used to determine the timing advance value of the target cell.
The network device according to claim 28, wherein before sending the timing advance indication message to the terminal through the serving cell, it further includes:

When the timing advance value of the target cell changes, timing advance related parameters are sent to the terminal; the timing advance related parameters determine the timing advance value of the target cell.
The network device according to claim 28, wherein the service small After the zone sends the timing advance indication message to the terminal, it also includes:

Scheduling physical channel resources to send timing advance related parameters to the terminal; the timing advance related parameters determine the timing advance value of the target cell.
A timing advance value transmission device, including:

The first sending module is used to receive the timing advance indication message sent by the network device through the serving cell;

The first determination module is configured to determine the timing advance value of the target cell based on the timing advance indication message.
The timing advance value transmission device according to claim 31, wherein the first determination module is specifically configured to use the service when the timing advance indication message indicates that the network device does not provide timing advance related parameters. The timing advance value of the cell is used as the timing advance value of the target cell.
The timing advance value transmission device according to claim 32, wherein the device further includes a judgment module;

The judgment module is used to judge whether the timing advance indication message indicates that the network device does not provide timing advance related parameters.
The timing advance value transmission device according to claim 32, wherein the device further includes a first acquisition module;

The first acquisition module is used to acquire the timing advance value of the serving cell.
The timing advance value transmission device according to claim 31, wherein the device further includes a first receiving module;

The first receiving module is configured to receive one or more timing advance related parameters sent by the network device.
The timing advance value transmission device according to claim 35, wherein the first determination module is specifically configured to determine the timing advance value of the target cell based on the last received timing advance related parameters.
The timing advance value transmission device according to claim 31, wherein the The first determination module includes a first acquisition unit and a first determination unit;

The first acquisition unit is configured to decode the channel resources carrying timing advance related parameters based on the timing advance indication message, and obtain the timing advance related parameters sent by the network device;

The first determining unit is configured to determine the timing advance value of the target cell based on the timing advance related parameters.
The timing advance value transmission device according to claim 31, wherein the first determination module includes a second acquisition unit and a second determination unit;

The second acquisition unit is configured to acquire timing advance related parameters sent by the network device based on the timing advance indication message;

The second determining unit is configured to determine the timing advance value of the target cell based on the timing advance related parameters.
The timing advance value transmission device according to claim 38, wherein the timing advance indication message includes a MAC CE message, and the MAC CE message carries layer 2 cell change command information and the timing advance related parameters.
The timing advance value transmission device according to any one of claims 35 to 39, wherein the timing advance related parameters include one or more of the following parameters:

The timing advance value of the target cell;

The relative value relative to the timing advance value of the target cell obtained last time;

The relative value relative to the timing advance value of the serving cell;

Target cell identification information;

Target cell beam indication information.
The timing advance value transmission device according to any one of claims 35 to 39, wherein the message carrying the timing advance related parameters includes one or more of the following messages:

RRC message;

MAC CE message.
The timing advance value transmission device according to any one of claims 35 to 39, wherein the timing advance indication message includes one or more of the following messages:

DCI carrying layer 1 cell change command information;

MAC CE message carrying layer 2 cell change command information.
A timing advance value transmission device, including:

The second sending mode is used to send a timing advance indication message to the terminal through the serving cell; the timing advance indication message is used to determine the timing advance value of the target cell.
The timing advance value transmission device according to claim 43, wherein the device further includes a third sending module;

When the timing advance value of the target cell changes, the third sending module is configured to send timing advance related parameters to the terminal; the timing advance related parameters determine the timing advance value of the target cell.
The timing advance value transmission device according to claim 43, wherein the device further includes a fourth sending module;

The fourth sending module is configured to schedule physical channel resources to send timing advance related parameters to the terminal; the timing advance related parameters determine the timing advance value of the target cell.
A computer-readable storage medium stores a computer program, and the computer program is used to cause a computer to execute the timing advance value transmission method described in any one of claims 1 to 12.
A computer-readable storage medium stores a computer program, and the computer program is used to cause a computer to execute the timing advance value transmission method described in any one of claims 13 to 15.