CN117202338A

CN117202338A - Timing advance value transmission method, device and storage medium

Info

Publication number: CN117202338A
Application number: CN202210615302.4A
Authority: CN
Inventors: 王雷; 许萌; 梁靖; 曾二林
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2023-12-08
Also published as: WO2023231767A1

Abstract

The embodiment of the application provides a timing advance value transmission method, a device and a storage medium, wherein the method comprises the following steps: the terminal receives a timing advance indication message sent by the network equipment through a service cell; the terminal determines a timing advance value of a target cell based on the timing advance indication message. The embodiment of the application provides a timing advance value transmission method, a device and a storage medium, wherein a terminal determines a timing advance value of a target cell according to a timing advance indication message sent by a base station under the condition of accessing a service cell, so that switching delay is reduced.

Description

Timing advance value transmission method, device and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a timing advance value transmission method, apparatus, and storage medium.

Background

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

Disclosure of Invention

The embodiment of the application provides a timing advance value transmission method, a timing advance value transmission device and a storage medium, which are used for solving the technical problem of large switching time delay in the prior art.

In a first aspect, an embodiment of the present application provides a method for transmitting a timing advance value, including:

the terminal receives a timing advance indication message sent by the network equipment through a service cell;

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

In some embodiments, the terminal determining a timing advance value for a target cell based on the timing advance indication message comprises:

the terminal takes the timing advance value of the serving cell as the timing advance value of the target cell in the case that the timing advance indication message indicates that the network device does not provide a timing advance related parameter.

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

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 method further includes:

and the terminal acquires the timing advance value of the service cell.

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

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

the terminal determines a timing advance value of the target cell based on the last received timing advance related parameter.

the terminal decodes channel resources bearing the timing advance related parameters based on the timing advance indication message, and acquires the timing advance related parameters sent by the network equipment;

the terminal determines a timing advance value of a target cell based on the timing advance related parameter.

the terminal obtains a timing advance related parameter sent by the network equipment based on the timing advance indication message;

In some embodiments, the timing advance indication message comprises a MAC CE message carrying layer 2 cell change order information and the timing advance related parameters.

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

a timing advance value of the target cell;

a relative value with respect to the timing advance value of the last acquired target cell;

a relative value of timing advance value with respect to the serving cell;

target cell identification information;

target cell beam indication information.

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

an RRC message;

MAC CE message.

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

DCI carrying cell change command information of layer 1;

MAC CE message carrying the cell change order information of layer 2.

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

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

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

in the case that the timing advance value of the target cell is changed, the network device sends a timing advance related parameter to the terminal; the timing advance related parameter determines a timing advance value of a target cell.

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

the network equipment schedules physical channel resources to send timing advance related parameters to the terminal; the timing advance related parameter determines a timing advance value of a target cell.

In a third aspect, an embodiment of the present application provides a terminal, including a memory, a transceiver, and a processor;

a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:

receiving a timing advance indication message sent by network equipment through a service cell;

and determining a timing advance value of the target cell based on the timing advance indication message.

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

and taking the timing advance value of the serving cell as the timing advance value of the target cell in the case that the timing advance indication message indicates that the network equipment does not provide the timing advance related parameter.

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

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

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

and acquiring the timing advance value of the service cell.

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

one or more timing advance related parameters transmitted by the network device are received.

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

decoding channel resources carrying timing advance related parameters based on the timing advance indication message, and acquiring the timing advance related parameters sent by the network equipment;

and determining a timing advance value of the target cell based on the timing advance related parameter.

acquiring a timing advance related parameter sent by the network equipment based on the timing advance indication message;

a timing advance value of the target cell;

a relative value of timing advance value with respect to the serving cell;

target cell identification information;

target cell beam indication information.

an RRC message;

MAC CE message.

DCI carrying cell change command information of layer 1;

MAC CE message carrying the cell change order information of layer 2.

In a fourth aspect, an embodiment of the present application provides a network device, including a memory, a transceiver, and a processor;

sending a timing advance indication message to a terminal through a service cell; the timing advance indication message is used to determine a timing advance value of the target cell.

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

transmitting a timing advance related parameter to the terminal in case that the timing advance value of the target cell is changed; the timing advance related parameter determines a timing advance value of a target cell.

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

scheduling physical channel resources to send timing advance related parameters to the terminal; the timing advance related parameter determines a timing advance value of a target cell.

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

a first sending module, configured to receive, through a serving cell, a timing advance indication message sent by a network device;

a first determining module, configured to determine a timing advance value of a target cell based on the timing advance indication message.

In some embodiments, the first determining module is specifically configured to take the timing advance value of the serving cell as the timing advance value of the target cell if the timing advance indication message indicates that the network device does not provide a timing advance related parameter.

In some embodiments, the apparatus further comprises a determination module;

the judging module is configured to judge whether the timing advance indication message indicates that the network device does not provide a timing advance related parameter.

In some embodiments, the apparatus further comprises a first acquisition module;

the first acquisition module is configured to acquire a timing advance value of the serving cell.

In some embodiments, the apparatus further comprises 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 determining module is specifically configured to determine the timing advance value of the target cell based on the last received timing advance related parameter.

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

the first obtaining unit is configured to decode a channel resource carrying a timing advance related parameter based on the timing advance indication message, and obtain the timing advance related parameter sent by the network device;

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

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

the second obtaining unit is configured to obtain a timing advance related parameter sent by the network device based on the timing advance indication message;

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

a timing advance value of the target cell;

a relative value of timing advance value with respect to the serving cell;

target cell identification information;

target cell beam indication information.

an RRC message;

MAC CE message.

DCI carrying cell change command information of layer 1;

MAC CE message carrying the cell change order information of layer 2.

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

a second transmission module for transmitting a timing advance indication message to the terminal through the serving cell; the timing advance indication message is used to determine a timing advance value of the target cell.

In some embodiments, the apparatus further comprises a third transmission module;

the third sending module is configured to send a timing advance related parameter to the terminal in a case where the timing advance value of the target cell is changed; the timing advance related parameter determines a timing advance value of a target cell.

In some embodiments, the apparatus further comprises a fourth transmission module;

the fourth sending module is used for scheduling physical channel resources to send timing advance related parameters to the terminal; the timing advance related parameter determines a timing advance value of a target cell.

In a seventh aspect, embodiments of the present application further provide a processor-readable storage medium storing a computer program for causing a processor to execute the timing advance value transmission method according to the first or second aspect described above.

In an eighth aspect, an embodiment of the present application further provides a computer-readable storage medium storing a computer program for causing a computer to execute the timing advance value transmission method according to the first aspect or the second aspect described above.

In a ninth aspect, an embodiment of the present application further provides a communication device readable storage medium storing a computer program for causing a communication device to execute the timing advance value transmission method according to the first or second aspect described above.

In a tenth aspect, embodiments of the present application further provide a chip product readable storage medium storing a computer program for causing a chip product to execute the timing advance value transmission method according to the first or second aspect.

The embodiment of the application provides a timing advance value transmission method, a device and a storage medium, wherein a terminal determines a timing advance value of a target cell according to a timing advance indication message sent by a base station under the condition of accessing a service cell, so that switching delay is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic flow chart of a timing advance value transmission method according to an embodiment of the present application;

fig. 2 is a second flowchart of a timing advance value transmission method according to an embodiment of the present application;

Fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 5 is a schematic structural diagram of a timing advance value transmission device according to an embodiment of the present application;

fig. 6 is a second schematic diagram of a timing advance value transmission device according to an embodiment of the present application.

Detailed Description

The timing advance is the advance of the uplink transmission of the terminal relative to the downlink reception of the terminal, and is used for the terminal to complete uplink synchronization with the base station, so that the timing alignment of uplink signals transmitted by the terminals with different distances from the base station to the base station is ensured. Under the traditional cell changing scene, the terminal needs to acquire initial timing advance information of the target cell by receiving a random access response sent by the base station after sending a preamble sequence (preamble) to the base station by triggering a random access process.

Specifically, in the cell handover based on layer 3, when the terminal selects to switch to a target cell that is not synchronized with the current serving cell, the base station carries relevant configuration information that the terminal initiates random access in the target cell in the synchronization reconfiguration message, then the terminal initiates random access after accessing the target cell to acquire uplink synchronization, and the random access process introduces additional delay in the whole handover process.

In the application, the mobility based on layer 1/layer 2 allows the terminal to acquire some configuration information of the candidate cell in advance so as to reduce the time delay problem in the change of the service cell.

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Fig. 1 is one of flow diagrams of a timing advance value transmission method according to an embodiment of the present application, and as shown in fig. 1, an embodiment of the present application provides a timing advance value transmission method, an execution body of which may be a terminal, for example, a mobile phone. The method comprises the following steps:

step 101, the terminal receives a timing advance indication message sent by the network device through the service cell.

Specifically, in the embodiment of the present application, the serving cell is only a cell that is currently providing a communication service for the terminal.

The network device may be a base station or a core network element.

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

The timing advance indication message may be carried by downlink control information (Downlink Control Information, DCI) or by a medium access control element (Media Access Control Control Element, MAC CE) message.

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

And the terminal receives the timing advance indication message sent by the network equipment through the service 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 application, after the terminal acquires 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, in the case where the timing advance indication message indicates that the network device does not provide the timing advance related parameter related to the target cell, the terminal takes 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 indicates that the network device provides a timing advance related parameter related to the target cell, the terminal may acquire the timing advance related parameter based on the timing advance indication message and determine the timing advance value of the target cell based on the timing advance related parameter.

The embodiment of the application provides a timing advance value transmission method, which is characterized in that a terminal determines the timing advance value of a target cell according to a timing advance indication message sent by a base station under the condition of accessing a service cell, so that the switching time delay is reduced.

and the terminal acquires the timing advance value of the service cell.

Specifically, in the embodiment of the present application, the terminal has acquired the timing advance value of the serving cell.

After acquiring 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 the timing advance related parameter.

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

The embodiment of the application provides a timing advance value transmission method, wherein a terminal takes the timing advance value of a serving cell as the timing advance value of a target cell under the condition that a network device is not provided with timing advance related parameters related to the target cell by a timing advance indication message received by the serving cell, so that signaling overhead is reduced.

Specifically, in the embodiment of the present application, in the case that the timing advance value of the target cell is changed, the network device sends the timing advance related parameter to the terminal.

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

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

In the case that the terminal receives a plurality of timing advance related parameters transmitted by the network device, the terminal determines a timing advance value of the target cell based on the timing advance related parameters received last time.

For example, the timing of the terminal acquiring the timing advance related parameter of the target cell is before the terminal receives the layer 1 or layer 2 cell change command. The terminal may acquire the timing advance related parameter through a radio resource control (Radio Resource Control, RRC) message, where the RRC message sent by the network device carries the timing advance related parameter of the target cell. The terminal can acquire the timing advance related parameter through the MAC CE message, and the MAC CE message sent by the network equipment carries the timing advance related parameter of the target cell. After receiving the cell change command of layer 1 or layer 2, the terminal determines the timing advance value of the target cell by using the acquired timing advance related parameter.

The embodiment of the application provides a timing advance value transmission method, wherein a terminal receives a timing advance related parameter related to a target cell through a service cell, and then determines the timing advance value of the target cell according to the timing advance related parameter, so that the switching time delay is reduced.

Specifically, in the embodiment of the present application, after the network device sends the timing advance indication message to the terminal through the serving cell, the network device sends the timing advance related parameter to the terminal through scheduling the physical channel resource. 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 parameter according to the scheduling information sent by the network equipment, and obtains the timing advance related parameter of the target cell.

The terminal then determines a timing advance value for the target cell based on the timing advance related parameter.

For example, the timing when the terminal acquires the timing advance related parameter is when the terminal receives the layer 1 cell change command. The layer 1 cell change command received by the terminal may include a 1-bit (bit) indicating that the cell change command carries a timing advance related parameter, or the layer 1 cell change command received by the terminal does not include an indicating bit about whether the cell change command carries a timing advance related parameter. After receiving the DCI-based layer 1 cell change command, the terminal decodes the RRC message or the MAC CE message in the physical downlink shared channel to acquire the timing advance related parameter of the target cell, and then determines the timing advance value of the target cell based on the timing advance related parameter.

The embodiment of the application provides a timing advance value transmission method, which comprises the steps that under the condition of accessing a service cell, a terminal acquires a timing advance related parameter related to a target cell when receiving a layer 1 cell change command, and then determines the timing advance value of the target cell according to the timing advance related parameter, so that the switching delay is reduced.

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

Optionally, the timing advance indication message comprises a MAC CE message carrying layer 2 cell change order information and timing advance related parameters.

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

For example, the timing when the terminal acquires the timing advance related parameter is when the terminal receives the layer 2 cell change command. The layer 2 cell change command received by the terminal may include an indication that the 1bit indicates that the cell change command carries a timing advance related parameter, or the layer 2 cell change command received by the terminal does not include an indication bit about whether the cell change command carries a timing advance related parameter. After receiving the layer 2 cell change command based on the MAC CE message, the terminal decodes the MAC CE message for the layer 2 cell change command in the physical downlink shared channel to obtain the timing advance related parameter of the target cell, and then the terminal determines the timing advance value of the target cell based on the timing advance related parameter.

For example, the timing when the terminal acquires the timing advance related parameter is when the terminal receives the layer 2 cell change command. The layer 2 cell change command received by the terminal may include an indication that the 1bit indicates that the cell change command carries a timing advance related parameter, or the layer 2 cell change command received by the terminal does not include an indication bit about whether the cell change command carries a timing advance related parameter. After determining the layer 2 cell change command, the terminal decodes another MAC CE message in the physical downlink shared channel to acquire a timing advance related parameter of the target cell, and then, the terminal determines a timing advance value of the target cell based on the timing advance related parameter.

The embodiment of the application provides a timing advance value transmission method, which comprises the steps that under the condition of accessing a service cell, a terminal acquires a timing advance related parameter related to a target cell when receiving a layer 2 cell change command, and then determines the timing advance value of the target cell according to the timing advance related parameter, so that the switching delay is reduced.

A timing advance value of the target cell;

a relative value of timing advance value with respect to the serving cell;

target cell identification information;

target cell beam indication information.

In particular, the timing advance value of the target cell may be understood as an absolute timing advance value of the target cell.

The relative value with respect to the timing advance value of the last acquired target cell refers to the difference of the timing advance value of the current target cell with respect to the timing advance value of the last acquired target cell.

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

The relative value of the timing advance value with respect to the serving cell refers to the difference of the timing advance value of the current target cell with respect to the timing advance value of the serving cell.

For example, if the timing advance value of the serving cell acquired by the terminal is 5 units and the relative value of the timing advance value with respect to the serving cell is 3 units, the terminal may determine that the timing advance value of the target cell acquired this time is 8 units; if the relative value of the timing advance value relative to the serving cell is-3 units, the terminal can determine that the timing advance value of the target cell acquired this time is 2 units.

an RRC message;

MAC CE message.

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

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

DCI carrying cell change command information of layer 1;

MAC CE message carrying the cell change order information of layer 2.

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

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

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

Fig. 2 is a second flowchart of a timing advance value transmission method according to an embodiment of the present application, as shown in fig. 2, where an execution body of the timing advance value transmission method may be a network device, for example, a base station. The method comprises the following steps:

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

the network equipment schedules physical channel resources to be sent to the terminal and advances related parameters; the timing advance related parameter determines a timing advance value of a target cell.

Specifically, the timing advance value transmission method provided in the embodiment of the present application may refer to the timing advance value transmission method embodiment in which the execution body is a terminal, and may achieve the same technical effects, and the same parts and beneficial effects as those of the corresponding method embodiment in the embodiment are not described in detail herein.

Fig. 3 is a schematic structural diagram of a terminal according to an embodiment of the present application, and as shown in fig. 3, the terminal includes a memory 320, a transceiver 300, and a processor 310, where:

a memory 320 for storing a computer program; a transceiver 300 for transceiving data under the control of the processor 310; a processor 310 for reading the computer program in the memory 320 and performing the following operations:

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

Wherein in fig. 3, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 310 and various circuits of memory represented by memory 320, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 300 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The user interface 330 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

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

In some embodiments, 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), which may also employ a multi-core architecture.

The processor is operable to perform any of the methods provided by embodiments of the present application in accordance with the obtained executable instructions by invoking a computer program stored in a memory. The processor and the memory may also be physically separate.

and acquiring the timing advance value of the service cell.

a timing advance value of the target cell;

a timing advance value relative to the last acquired target cell;

a timing advance value relative to a serving cell;

target cell identification information;

target cell beam indication information.

an RRC message;

MAC CE message.

DCI carrying cell change command information of layer 1;

MAC CE message carrying the cell change order information of layer 2.

It should be noted that, the terminal provided by the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is a terminal, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted herein.

Fig. 4 is a schematic structural diagram of a network device according to an embodiment of the present application, as shown in fig. 4, where the network device includes a memory 420, a transceiver 400, and a processor 410, where:

a memory 420 for storing a computer program; a transceiver 400 for transceiving data under the control of the processor 410; a processor 410 for reading the computer program in the memory 420 and performing the following operations:

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

Wherein in fig. 4, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 410 and various circuits of memory represented by memory 420, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 400 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium, including wireless channels, wired channels, optical cables, etc. The processor 410 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 410 in 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), or it may employ a multi-core architecture.

scheduling physical channel resources to advance related parameters when the physical channel resources are sent to the terminal; the timing advance related parameter determines a timing advance value of a target cell.

Specifically, the network device provided by the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is a network device, and can achieve the same technical effects, and the same parts and beneficial effects as those of the method embodiment in the embodiment are not described in detail herein.

Fig. 5 is a schematic structural diagram of a timing advance value transmission device according to an embodiment of the present application, and as shown in fig. 5, an embodiment of the present application provides a timing advance value transmission device, which includes a first sending module 501 and a first determining module 502, wherein:

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

In some embodiments, the apparatus further comprises a determination module;

In some embodiments, the apparatus further comprises a first receiving module;

a timing advance value of the target cell;

a timing advance value relative to the last acquired target cell;

a timing advance value relative to a serving cell;

target cell identification information;

target cell beam indication information.

an RRC message;

MAC CE message.

DCI carrying cell change command information of layer 1;

MAC CE message carrying the cell change order information of layer 2.

Specifically, the timing advance value transmission device provided by the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is a terminal, and can achieve the same technical effects, and the same parts and beneficial effects as those of the method embodiment in the embodiment are not described in detail herein.

Fig. 6 is a second schematic diagram of a timing advance value transmission device according to an embodiment of the present application, as shown in fig. 6, where the timing advance value transmission device includes a second sending module 601.

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

the fourth sending module is used for scheduling related parameters in advance when physical channel resources are sent to the terminal; the timing advance related parameter determines a timing advance value of a target cell.

Specifically, the timing advance value transmission device provided by the embodiment of the present application can implement all the method steps implemented by the method embodiment in which the execution body is a network device, and can achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in the embodiment are omitted herein.

It should be noted that the division of the units/modules in the above embodiments of the present application is merely a logic function division, and other division manners may be implemented in practice. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.

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

In some embodiments, there is also provided a computer-readable storage medium storing a computer program for causing a computer to execute the timing advance value transmission method provided by the above-described method embodiments.

Specifically, the computer readable storage medium provided by the embodiment of the present application can implement all the method steps implemented by the above method embodiments and achieve the same technical effects, and the parts and beneficial effects that are the same as those of the method embodiments in this embodiment are not described in detail herein.

It should be noted that: the computer readable storage medium may be any available medium or data storage device that can be accessed by a processor including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CD, DVD, BD, HVD, etc.), and semiconductor memory (e.g., ROM, EPROM, EEPROM, nonvolatile memory (NAND FLASH), solid State Disk (SSD)), etc.

In addition, it should be noted that: the terms "first," "second," and the like in embodiments of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more.

In the embodiment of the application, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The term "plurality" in embodiments of the present application means two or more, and other adjectives are similar.

The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.

The terminal device according to the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and embodiments of the present application are not limited in this respect.

The network device according to the embodiment of the present application may be a base station, where the base station may include a plurality of cells for providing services for the terminal. A base station may also be called an access point or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or other names, depending on the particular application. The network device may be operable to exchange received air frames with internet protocol (Internet Protocol, IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a network device (Base Transceiver Station, BTS) in a global system for mobile communications (Global System for Mobile communications, GSM) or code division multiple access (Code Division Multiple Access, CDMA), a network device (NodeB) in a wideband code division multiple access (Wide-band Code Division Multiple Access, WCDMA), an evolved network device (evolutional Node B, eNB or e-NodeB) in a long term evolution (long term evolution, LTE) system, a 5G base station (gNB) in a 5G network architecture (next generation system), a home evolved base station (Home evolved Node B, heNB), a relay node (relay node), a home base station (femto), a pico base station (pico), etc., which are not limited in the embodiment of the present application. In some network structures, the network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

The term "determining B based on a" in the present application means that a is a factor to be considered in determining B. Not limited to "B can be determined based on A alone", it should also include: "B based on A and C", "B based on A, C and E", "C based on A, further B based on C", etc. Additionally, a may be included as a condition for determining B, for example, "when a satisfies a first condition, B is determined using a first method"; for another example, "when a satisfies the second condition, B" is determined, etc.; for another example, "when a satisfies the third condition, B" is determined based on the first parameter, and the like. Of course, a may be a condition in which a is a factor for determining B, for example, "when a satisfies the first condition, C is determined using the first method, and B is further determined based on C", or the like.

Multiple-input Multiple-output (Multi Input Multi Output, MIMO) transmissions may each be made between a network device and a terminal device using one or more antennas, and the MIMO transmissions may be Single User MIMO (SU-MIMO) or Multiple User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of the root antenna combinations.

It will be appreciated by those skilled in the art that embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application 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) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-executable instructions. 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 apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. A method for timing advance value transmission, comprising:

2. 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, comprising:

3. 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, further comprising:

4. The timing advance value transmission method according to claim 2, wherein the terminal further comprises, before the timing advance value of the serving cell is used as the timing advance value of the target cell:

And the terminal acquires the timing advance value of the service cell.

5. 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, the method further comprises:

6. The timing advance value transmission method of claim 5, wherein the terminal determining the timing advance value of the target cell based on the timing advance indication message comprises:

7. 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, comprising:

8. 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, comprising:

9. The method of claim 8, wherein the timing advance indication message comprises a MAC CE message carrying layer 2 cell change order information and the timing advance related parameters.

10. The timing advance value transmission method according to any one of claims 5 to 9, characterized in that the timing advance related parameters include one or more of the following parameters:

a timing advance value of the target cell;

a relative value of timing advance value with respect to the serving cell;

target cell identification information;

target cell beam indication information.

11. The method according to any of claims 5 to 9, wherein the message carrying the timing advance related parameter comprises one or more of the following messages:

An RRC message;

MAC CE message.

12. The timing advance value transmission method according to any one of claims 5 to 9, characterized in that the timing advance indication message comprises one or more of the following messages:

DCI carrying cell change command information of layer 1;

MAC CE message carrying the cell change order information of layer 2.

13. A method for timing advance value transmission, comprising:

14. The timing advance value transmission method of claim 13, wherein before the network device transmits the timing advance indication message to the terminal through the serving cell, further comprising:

15. The timing advance value transmission method of claim 13, wherein after the network device transmits the timing advance indication message to the terminal through the serving cell, further comprising:

16. A terminal comprising a memory, a transceiver, and a processor;

17. The terminal of claim 16, wherein the determining a timing advance value for a target cell based on the timing advance indication message comprises:

18. The terminal of claim 17, wherein prior to determining a timing advance value for a target cell based on the timing advance indication message, further comprising:

19. The terminal of claim 17, wherein the serving cell timing advance value is preceded by the target cell timing advance value, further comprising:

and acquiring the timing advance value of the service cell.

20. The terminal of claim 16, wherein prior to receiving the timing advance indication message sent by the network device via the serving cell, further comprising:

21. The terminal of claim 20, wherein the determining a timing advance value for a target cell based on the timing advance indication message comprises:

22. The terminal of claim 16, wherein the determining a timing advance value for a target cell based on the timing advance indication message comprises:

23. The terminal of claim 16, wherein the determining a timing advance value for a target cell based on the timing advance indication message comprises:

24. The terminal of claim 23, wherein the timing advance indication message comprises a MAC CE message carrying layer 2 cell change order information and the timing advance related parameters.

25. The terminal according to any of the claims 20 to 24, characterized in that the timing advance related parameters comprise one or more of the following parameters:

a timing advance value of the target cell;

a relative value of timing advance value with respect to the serving cell;

target cell identification information;

target cell beam indication information.

26. The terminal according to any of the claims 20 to 24, characterized in that the message carrying the timing advance related parameter comprises one or more of the following messages:

An RRC message;

MAC CE message.

27. The terminal according to any of the claims 20 to 24, characterized in that the timing advance indication message comprises one or more of the following messages:

DCI carrying cell change command information of layer 1;

MAC CE message carrying the cell change order information of layer 2.

28. A network device comprising a memory, a transceiver, and a processor;

29. The network device of claim 28, wherein prior to the sending the timing advance indication message to the terminal via the serving cell, further comprising:

30. The network device of claim 28, wherein after the timing advance indication message is sent to the terminal through the serving cell, further comprising:

31. A timing advance value transmission apparatus, comprising:

32. A timing advance value transmission apparatus, comprising:

33. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for causing a computer to execute the timing advance value transmission method according to any one of claims 1 to 15.