CN116868639A

CN116868639A - Uplink synchronization method and device and storage medium

Info

Publication number: CN116868639A
Application number: CN202380009354.XA
Authority: CN
Inventors: 黄河清; 周海刚
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2023-05-10
Filing date: 2023-05-10
Publication date: 2023-10-10

Abstract

The disclosure provides an uplink synchronization method and device, and a storage medium, wherein the uplink synchronization method comprises the following steps: and sending a first command to the terminal, wherein the first command is at least used for keeping uplink space synchronization between the terminal and the network equipment. The method optimizes the uplink channel, improves the uplink signal quality, improves the signal to noise ratio, realizes the enhancement aiming at uplink synchronization, can avoid the problems of uplink out-of-step, signal bottom drop and the like as much as possible, and has high availability.

Description

Uplink synchronization method and device and storage medium

Technical Field

The disclosure relates to the field of communications, and in particular, to an uplink synchronization method and device, and a storage medium.

Background

The third generation partnership project (3rd Generation Partnership Project,3GPP) currently defines time advance commands (Timing Advance Command, TAC) in terrestrial network communication protocols, the terminals maintaining uplink time synchronization with the network devices based on the TAC.

Disclosure of Invention

In order to overcome the problems in the related art, embodiments of the present disclosure provide an uplink synchronization method, an apparatus, and a storage medium.

According to a first aspect of embodiments of the present disclosure, there is provided an uplink synchronization method, which is performed by a network device, including:

And sending a first command to a terminal, wherein the first command is at least used for keeping uplink space synchronization between the terminal and the network equipment.

Optionally, the first command includes:

a spatial advance command field for determining an angle value that the network device changes in different spatial dimensions.

Optionally, the first command further includes at least one of:

a timing advance group identification field;

timing advance command field.

Optionally, the space advance command field includes at least one of:

a longitude advance field for determining an angle value that the network device changed in longitude;

and a latitude advance field for determining an angle value that the network device changes in latitude.

Optionally, the spatial advance command field is used to indicate different index values, each of which corresponds to an angle coefficient that the network device changes in one of the spatial dimensions.

Optionally, the method further comprises:

determining the angle value that the network device changes in each of the spatial dimensions;

determining each of the angle coefficients based on the angle value and a unit angle value that the network device varies in each of the spatial dimensions;

And determining the index value corresponding to each angle coefficient.

Optionally, the method further comprises:

and sending a Radio Resource Control (RRC) message to the terminal, wherein the RRC message is used for indicating the unit angle values changed by the network equipment in different space dimensions.

Optionally, the sending the first command to the terminal includes any one of the following:

transmitting a media range control unit (MAC CE) signaling including the first command to the terminal;

and sending a Random Access Response (RAR) message comprising the first command to the terminal.

According to a second aspect of the embodiments of the present disclosure, there is provided an uplink synchronization method, which is performed by a terminal, including:

receiving a first command sent by network equipment;

based on the first command, at least uplink spatial synchronization is maintained with the network device.

Optionally, the first command includes:

Optionally, the first command further includes at least one of:

a timing advance group identification field;

timing advance command field.

Optionally, the space advance command field includes at least one of:

a longitude advance field for determining a first angle value that the network device changed in longitude;

and a latitude advance field for determining a second angle value that the network device changes in latitude.

Optionally, based on the first command, maintaining uplink spatial synchronization with the network device, including:

determining, based on the first command, the angle value that the network device changes in each of the spatial dimensions;

and determining the beam direction of an uplink signal to be transmitted and/or determining an antenna used when the uplink signal is transmitted based on the angle value.

Optionally, the determining, based on the first command, the angle value that the network device changes in each of the spatial dimensions includes:

determining, based on the spatial advance command field, an angle coefficient that the network device changes in each of the spatial dimensions;

The angle value is determined based on the angle coefficient and a unit angle value that the network device changes in each of the spatial dimensions.

Optionally, the method further comprises:

and receiving a Radio Resource Control (RRC) message sent by the network equipment, wherein the RRC message is used for indicating the unit angle values changed by the network equipment in different space dimensions.

Optionally, the receiving the first command sent by the network device includes any one of the following:

receiving media range control unit (MAC CE) signaling comprising the first command and sent by the network equipment;

and receiving a Random Access Response (RAR) message which is sent by the network equipment and comprises the first command.

According to a third aspect of the embodiments of the present disclosure, there is provided an uplink synchronization apparatus, where the apparatus is applied to a network device, including:

and the sending module is configured to send a first command to the terminal, wherein the first command is used for keeping uplink time synchronization and uplink space synchronization between the terminal and the network equipment.

According to a fourth aspect of the embodiments of the present disclosure, there is provided an uplink synchronization device, where the device is applied to a terminal, including:

the receiving module is configured to receive a first command sent by the network equipment;

And the uplink synchronization module is configured to keep uplink time synchronization and uplink space synchronization with the network equipment based on the first command.

According to a fifth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium storing a computer program for executing the uplink synchronization method of any one of the above network device sides.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium storing a computer program for executing the uplink synchronization method of any one of the above terminal sides.

According to a seventh aspect of the embodiments of the present disclosure, there is provided an uplink synchronization device, including:

a processor;

a memory for storing processor-executable instructions;

the processor is configured to execute the uplink synchronization method of any one of the above network device sides.

According to an eighth aspect of an embodiment of the present disclosure, there is provided an uplink synchronization device, including:

a processor;

a memory for storing processor-executable instructions;

the processor is configured to execute the uplink synchronization method of any one of the terminal sides.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

in the disclosure, the network device may send the first command to the terminal, so that the terminal maintains uplink time synchronization and uplink space synchronization with the network device based on the first command.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a flow chart illustrating an uplink synchronization method according to an exemplary embodiment.

Fig. 2A is a schematic diagram illustrating the structure of a first command according to an exemplary embodiment.

Fig. 2B is a schematic diagram illustrating another first command structure according to an exemplary embodiment.

Fig. 2C is a schematic diagram illustrating another first command structure according to an exemplary embodiment.

Fig. 2D is a schematic diagram illustrating another first command structure according to an example embodiment.

Fig. 3 is a schematic diagram of an NTN communication scenario illustrated according to an example embodiment.

Fig. 4 is a flow chart illustrating another uplink synchronization method according to an exemplary embodiment.

Fig. 5 is a flow chart illustrating another uplink synchronization method according to an exemplary embodiment.

Fig. 6 is a block diagram of an uplink synchronization device, according to an example embodiment.

Fig. 7 is a block diagram of another uplink synchronization device, according to an example embodiment.

Fig. 8 is a schematic structural diagram of an uplink synchronization device according to an exemplary embodiment of the disclosure.

Fig. 9 is a schematic structural diagram of another uplink synchronization device according to an exemplary embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of at least one of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

In a Non-terrestrial network (Non-Terrestrial Network, NTN) communication scenario, the signal direction is continuously changed due to continuous movement of a satellite, and the terminal and the network equipment keep uplink time synchronization, so that the problems of uplink step-out and signal bottom drop still easily occur.

Based on this, the disclosure provides an uplink synchronization method and device, and a storage medium, which can be applied to NTN. The NTN includes a terminal and a network device that communicate with each other.

In one embodiment of the disclosure, the terminal may include an electronic device such as a mobile phone, a vehicle, or the like.

In one embodiment of the present disclosure, the network device may comprise a satellite.

Alternatively, the network device may be considered to be located on earth and repeat the waveform signal by a satellite. Illustratively, the network equipment includes base stations deployed on earth, and satellites deployed in space.

Alternatively, the network device may be a base station that is in flight. The base station may be various types of base stations. Such as, for example, a base station of a third generation mobile communications (the 3th Generation Mobile Communication Technology,3G) network, a base station of a fourth generation mobile communications (the 4th Generation Mobile Communication Technology,4G) network, a base station of a fifth generation mobile communications (the 5th Generation Mobile Communication Technology,5G) network, or other evolved base station, to which the present disclosure is not limited.

The uplink synchronization method provided by the present disclosure is introduced from the network device side.

An embodiment of the present disclosure provides an uplink synchronization method, referring to fig. 1, and fig. 1 is a flowchart of an uplink synchronization method according to an embodiment, where the uplink synchronization method may be performed by a network device, and the method may include the following steps:

In step 101, a first command is sent to a terminal, where the first command is at least used for keeping uplink spatial synchronization between the terminal and a network device.

In the embodiment of the present disclosure, the terminal and the network device maintaining uplink spatial synchronization means that different terminals ensure uplink signal synchronization in the beam direction based on the transmission beam and the transmission antenna selected by each terminal in the same cell.

In one possible implementation, the network device may determine, according to its movement track, movement speed, etc., whether the first command needs to be sent to the terminal.

The network device may send the first command to the terminal when determining that the angle value of the movement in the different spatial dimensions exceeds the preset angle threshold according to the movement track, the movement speed, and the like of the network device. When the angle value is smaller than or equal to the preset angle threshold, the network device may consider that the uplink transmission of the terminal is not greatly affected, for example, the probability of occurrence of uplink out-of-step and signal bottom drop problem at the terminal side is small, and at this time, the first command may not be sent to the terminal.

In another possible implementation, a TA Timer (Timer) is configured for the terminal by the network device, and the terminal starts or restarts the TA Timer based on the first command. Before the TA Timer of the terminal side is overtime, the network equipment needs to send the first command to the terminal so that the terminal can determine that the uplink step-out does not occur. It should be noted that, if the network device determines that the TA Timer is about to timeout, even if the network device determines that the angle value moving in different spatial dimensions does not exceed the preset angle threshold according to the moving track, the moving speed, and the like of the network device, the network device needs to send the first command to the terminal, so that the terminal maintains uplink time synchronization and uplink space synchronization with the network device based on the first command, and the problems of uplink step-out and the like of the terminal are avoided.

The above is merely an exemplary illustration, and the network device may also determine whether to send the first command to the terminal in combination with other factors.

In one possible implementation, the network device may send media access control unit (Media Access Control Element, MAC CE) signaling to the terminal, the MAC CE signaling including the first command therein.

In another possible implementation, the network device may send a random access response (Random Access Response, RAR) message to the terminal, the RAR message including the first command.

In the embodiment of the present disclosure, if the network device sends the first command to the terminal through the RAR message, since the terminal has not yet accessed the network device at this time, the space advance command field included in the first command may be used to determine location information of the network device on different spatial dimensions, for example, the space advance command field may include longitude and latitude of the network device mapped to the ground, and the terminal may perform deviation correction of the beam direction for the message 1 (msg 1) according to the first command, thereby improving the random access success rate, or directly determine, based on the first command, that the spatial location of the network device is mapped to the longitude and latitude of the ground, so as to ensure uplink spatial synchronization between the terminal and the network device.

In the present disclosure, considering that the random access procedure is short, the movement of the network device in a short time does not cause a large change in the angle value, and thus the present disclosure preferably can transmit the first command to the terminal through MAC CE signaling.

In one possible implementation, the first command may include, but is not limited to, a spatial advance command field for determining an angle value that the network device changes in a different spatial dimension.

The schematic structure of the first command may be shown in fig. 2A, for example.

In the embodiment of the disclosure, the terminal maintains uplink spatial synchronization with the network device based on the first command, and in addition, the network device transmits the TAC to the terminal, so that the terminal maintains uplink temporal synchronization with the network device based on the TAC.

In another possible implementation, the first command may further include, but is not limited to, at least one of: a timing advance group identification field; timing advance command field.

Wherein, the schematic structure of the first command may be as shown in fig. 2B, for example.

In the embodiment of the disclosure, the first command may be used for maintaining uplink time synchronization and uplink space synchronization between the terminal and the network device.

In the embodiment of the disclosure, the network device may control the terminal to keep uplink time synchronization with the network device through a timing advance group identification field and a timing advance command field included in the first command. In the present disclosure, the terminal and the network device keep uplink time synchronization, which means that different terminals using the same time slot to transmit uplink signals in the same cell, the time when the uplink signals reach the network device needs to keep synchronization.

In the embodiment of the disclosure, the network device may control the terminal to maintain uplink spatial synchronization with the network device through a spatial advance command field included in the first command.

In one example, the location of the network device relative to the ground may be represented in terms of longitude, latitude. Thus, spatial dimensions in this disclosure may include longitude, latitude.

Accordingly, the space advance command field may include the following two fields:

a longitude advance (Longitude Advance) field to determine an angle value by which the network device changes in longitude;

a latitudinal Advance field for determining an angle value that the network device changes in Latitude.

Accordingly, the schematic structure of the first command may be as shown in fig. 2C or fig. 2D, for example.

In the present disclosure, the first command may be exemplarily expressed as a time, longitude and latitude advance command (Timing Longitude and Latitude Advance Command, TLAC) when the terminal maintains uplink time synchronization and uplink space synchronization with the network device.

The foregoing is merely exemplary, and in practical applications, the first command may include other fields, which are not limited in this disclosure.

In one example, the advance of longitude field may directly indicate an angle value that the network device changed in longitude. The latitude advance field may also directly indicate an angle value that the network device changes in latitude.

In another example, signaling resources are wasted in view of the large number of bits that are occupied by directly indicating the angle value through the space advance command field. Thus, the spatial advance command field may be used to indicate different index values, each of which corresponds to an angular coefficient that the network device changes in one of the spatial dimensions.

For example, the longitude advance field may be used to indicate a first index value corresponding to a first angle coefficient that the network device changes in longitude, and the latitude advance field is used to indicate a second index value corresponding to a second angle coefficient that the network device changes in latitude.

The specific manner in which the network device sends the first command to the terminal so that the terminal and the network device maintain uplink spatial synchronization at least will be described on the terminal side, which is not described herein.

In the above embodiment, the uplink channel is optimized, the uplink signal quality is improved, the signal to noise ratio is improved, the enhancement for uplink synchronization is realized, the problems of uplink out-of-step, signal bottom drop and the like can be avoided as much as possible, and the availability is high.

In some alternative embodiments, the network device may determine the first index value in the following manner:

first, the network device determines a first angle value that changes in longitude, which specifically refers to an angle value that changes in longitude when the network device was running from the location where the first command was last sent to the current location.

Taking fig. 3 as an example, assuming that the location where the network device last transmitted the first command was C ', the longitude of the network device at location C' was E when it was currently moved to location D ', the longitude of the network device at location D' was F, and the centroid was O, the network device determines that the first angle value changed in longitude is the value of angle EOF.

Next, the network device may determine the first angle coefficient that changes in longitude based on the first angle value and a first unit angle value that changes in longitude of the network device.

In the embodiment of the present disclosure, the first unit angle value may be represented as X, and a specific value of X may be determined by the network device.

The network device calculates a quotient of the first angle value and X to obtain a first angle coefficient, where the first angle coefficient may be an integer.

When the first angle coefficient is greater than 0, the corresponding network device moves from north to south, and when the first angle coefficient is less than 0, the corresponding network device moves from north to south. When the first angle coefficient is 0, it is indicated that the longitude of the network device is unchanged.

Finally, the network device determines an index value corresponding to the first angle coefficient as the first index value.

In the present disclosure, the first correspondence between the different first angle coefficients and the different first index values may be agreed in advance by a protocol, for example, as shown in table 1.

TABLE 1

Table 1 is merely exemplary, and other schemes for indicating a movement parameter of a network device in terms of longitude by a first index value are also contemplated as falling within the scope of the present disclosure.

In some alternative embodiments, the network device may determine the second index value in a similar manner:

first, the network device determines a second angle value that varies in latitude.

Taking fig. 3 as an example, assuming that the location where the network device last sent the first command is C ', the latitude of the network device when it was currently moved to the location D ' is C (or B), the latitude of the network device when it was at the location D ' is a (or D), and the centroid is O, the second angle value is the value of the angle COA (or the angle BOD).

Second, the network device may determine the second angle coefficient based on the second angle value and a second unit angle value that the network device changes latitudinally.

In the embodiment of the present disclosure, the second unit angle value may be represented as Y, and a specific value of Y may be determined by the network device.

The network device calculates a quotient of the second angle value and Y to obtain a second angle coefficient, where the second angle coefficient may be an integer. And when the second angle coefficient is smaller than 0, the network equipment is indicated to move from west to east. When the second angle coefficient is 0, it is indicated that the latitude of the network device is unchanged.

And finally, the network equipment determines an index value corresponding to the second angle coefficient as the second index value.

In the present disclosure, a second correspondence relationship between a second angle coefficient different in latitude and a second index value different in latitude may be agreed in advance by a protocol, for example, as shown in table 2.

First index value	First angle coefficient
		0	-2
1	-1
		2	0
3	1
		4	2
……	……

TABLE 2

Second index value	Second angle coefficient
		0	-2
1	-1
		2	0
3	1
		4	2
……	……

Table 2 is merely exemplary, and other schemes for indicating the mobile parameter of the network device in the latitude through the second index value shall fall within the protection scope of the present disclosure.

In one example, the longitude advance field may occupy n bits and the latitude advance field may occupy m bits. Wherein n and m are positive integers, n and m can be equal or unequal, and the disclosure is not limited thereto.

For example, m and n are both 4, the bit value of the longitude advance field is 0000, indicating that the first index value is 0, and the bit value of the latitude advance field is 0001, indicating that the second index value is 1.

Of course, the first index value and the second index value may also be indicated by one space advance command field, for example, the first n bits of the space advance command field are used to indicate the first index value, the last m bits are used to indicate the second index value, for example, m and n are both 4, and the bit value of the space advance command field is 0000 0001, i.e., the first index value is 0 and the second index value is 1.

In the above embodiment, the network device may quickly determine the index value indicated by the space advance command field in the first command, so that the terminal maintains uplink spatial synchronization with the network device based on the space advance command field, which is simple and convenient to implement and has high availability.

The uplink synchronization method provided by the present disclosure is introduced from the terminal side.

An embodiment of the present disclosure provides an uplink synchronization method, referring to fig. 4, and fig. 4 is a flowchart of an uplink synchronization method, which may be performed by a terminal, and the method may include the following steps:

in step 401, a first command sent by a network device is received.

In one example, the first command is at least for the terminal to maintain uplink spatial synchronization with the network device. Wherein the first command may include, but is not limited to, a spatial advance command field for determining an angle value that the network device changes in a different spatial dimension.

In the disclosure, the terminal may maintain uplink spatial synchronization with the network device based on the first command, and in addition, the terminal may also receive TAC sent by the network device, so as to maintain uplink temporal synchronization with the network device.

In another example, the first command may further include at least one of: a timing advance group identification field; timing advance command field. Wherein, the schematic structure of the first command may be as shown in fig. 2B, for example. The first command is used for keeping uplink time synchronization and uplink space synchronization between the terminal and the network equipment.

The terminal maintains uplink time synchronization with the network device based on the timing advance group identification field, the timing advance command field. Uplink spatial synchronization is maintained with the network device based on the spatial advance command field.

The schematic structure of the first command may be shown in fig. 2C or fig. 2D, for example.

In this disclosure, the first command may be represented as TLAC, for example.

In step 402, at least uplink spatial synchronization is maintained with the network device based on the first command.

In the embodiment of the disclosure, the terminal may keep uplink time synchronization with the network device in the following manner:

the terminal determines the TAG of the primary or secondary cell based on a timing advance group (TAG ID) identification field.

The timing advance command field indicates an index value ranging from 0 to 63, and the terminal determines a TA value corresponding to the index value based on a protocol agreed manner. The terminal determines a time domain position when transmitting the uplink signal based on the TA value so as to maintain uplink time synchronization with the network device.

The terminal may maintain uplink spatial synchronization with the network device in the following manner:

the terminal determines the angle value that the network device changes in each of the spatial dimensions based on a spatial advance command field in the first command.

The terminal determines, for example, an angle value that the network device changes in longitude and latitude, respectively.

Further, the terminal determines a beam direction of an uplink signal to be transmitted based on the angle value, and/or determines an antenna used when the uplink signal is transmitted, so as to ensure that uplink spatial synchronization is maintained with the network device.

In the above embodiment, the uplink channel is optimized, the uplink signal quality is improved, the signal to noise ratio is improved, the enhancement for uplink synchronization is realized, and the problems of uplink out-of-step, signal bottom drop and the like caused by the movement of the network equipment can be avoided as much as possible, so that the availability is high.

In some alternative embodiments, the terminal may determine the first angle value that the network device changes in longitude by:

first, a first angle coefficient corresponding to a first index value is determined.

The terminal may determine, according to table 1, a first angle coefficient corresponding to a first index value indicated by the early longitude field in the first command.

Second, the terminal may determine a first angle value based on the first angle coefficient and the first unit angle value.

The terminal may receive a first unit angle value that the network device changes in longitude, which the network device transmits through the RRC message, wherein the first unit angle value may be represented as X, and a specific value of X may be determined by the network device.

The terminal may calculate a product of the first angle coefficient and X to obtain a first angle value.

For example, the first angle coefficient is-2 and the first angle value is-2X.

The correspondence between the first index value and the first angle value is shown in table 3, for example.

TABLE 3 Table 3

First index value	First angle value
		0	-2X
1	-X
		2	0
3	X
		4	2X
……	……

In some alternative embodiments, the terminal may determine the second angle value that the network device changes latitudinally in a similar manner:

first, a second angle coefficient corresponding to the second index value is determined.

The terminal may determine, according to table 2, a second angle coefficient corresponding to a second index value indicated by the latitude advance field in the first command.

Second, the terminal may determine a second angle value based on the second angle coefficient and the second unit angle value.

The terminal may receive a second unit angle value that is changed in latitude by the network device, which is transmitted by the network device through the RRC message, wherein the second unit angle value may be denoted as Y, and a specific value of Y may be determined by the network device.

The terminal may calculate a product of the second angle coefficient and Y to obtain a second angle value.

For example, the second angle coefficient is 0, and the second angle value is 0.

The correspondence between the second index value and the second angle value is shown in table 4, for example.

TABLE 4 Table 4

Second index value	Second angle value
		0	-2Y
1	-Y
		2	0
3	Y
		4	2Y
……	……

In the above embodiment, the terminal may determine the angle value changed by the network device in different spatial dimensions based on the index value indicated by the space advance command field in the first command, so that uplink spatial synchronization is maintained with the network device based on the angle value, which is simple and convenient to implement and has high availability.

In some alternative embodiments, referring to fig. 5, fig. 5 is a flowchart of an uplink synchronization method according to an embodiment, including the following steps:

In step 501, the network device sends a first command to a terminal. The first command is for the terminal to maintain uplink time synchronization and uplink spatial synchronization with the network device.

The implementation of step 501 is similar to that of step 101, and will not be described in detail here.

In step 502, the terminal maintains uplink time synchronization and uplink spatial synchronization with the network device based on the first command.

The implementation of step 502 is similar to that of step 402 described above, and will not be described again here.

In the above embodiment, the terminal may not only keep uplink time synchronization with the network device, but also keep uplink spatial synchronization with the network device based on the first command sent by the network device, so as to implement enhancement for uplink synchronization, and avoid the problems of uplink out-of-step, signal bottom drop and the like as much as possible, which has high availability.

Corresponding to the foregoing embodiment of the application function implementation method, the present disclosure further provides an embodiment of the application function implementation apparatus.

Referring to fig. 6, fig. 6 is a block diagram of an uplink synchronization apparatus according to an exemplary embodiment, where the apparatus is applied to a network device, and includes:

the sending module 601 is configured to send a first command to a terminal, where the first command is at least used for keeping uplink spatial synchronization between the terminal and a network device.

Optionally, the first command includes at least one of:

Optionally, the first command further includes at least one of:

a timing advance group identification field;

timing advance command field.

Optionally, the space advance command field includes at least one of:

Optionally, the apparatus further comprises (not shown in fig. 6):

a first determination module configured to determine the angle value that the network device changes in each of the spatial dimensions;

a second determination module configured to determine each of the angle coefficients based on the angle value and a unit angle value that the network device changes in each of the spatial dimensions;

And a third determining module configured to determine the index value corresponding to each of the angle coefficients.

Optionally, the sending module 601 is further configured to:

Optionally, the sending module 601 is further configured to any one of the following:

Referring to fig. 7, fig. 7 is a block diagram of an uplink synchronization apparatus according to an exemplary embodiment, the apparatus being applied to a terminal, including:

a receiving module 701 configured to receive a first command sent by a network device;

the uplink synchronization module 702 is configured to at least maintain uplink spatial synchronization with the network device based on the first command.

Optionally, the first command includes:

Optionally, the first command further includes at least one of:

a timing advance group identification field;

timing advance command field.

Optionally, the space advance command field includes at least one of:

Optionally, the uplink synchronization module 702 includes (not shown in fig. 7):

a first determination submodule configured to determine the angle value that the network device changes in each of the spatial dimensions based on the first command;

a second determining submodule configured to determine a beam direction of an uplink signal to be transmitted based on the angle value and/or determine an antenna used when transmitting the uplink signal.

Optionally, the first determination submodule is further configured to:

Optionally, the receiving module 701 is further configured to:

Optionally, the receiving module 701 is further configured to any one of:

For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The apparatus embodiments described above are merely illustrative, wherein the elements described above as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the objectives of the disclosed solution. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

Accordingly, the present disclosure also provides a computer-readable storage medium storing a computer program for executing the method described above for any one of the network device sides.

Accordingly, the disclosure also provides a computer readable storage medium, where the storage medium stores a computer program, where the computer program is configured to execute any one of the uplink synchronization methods on the network device side.

Accordingly, the present disclosure also provides a computer readable storage medium storing a computer program for executing any one of the uplink synchronization methods on the terminal side.

Correspondingly, the disclosure further provides an uplink synchronization device, which comprises: a processor; a memory for storing processor-executable instructions; the processor is configured to execute the uplink synchronization method of any one of the network device sides.

As shown in fig. 8, fig. 8 is a schematic structural diagram of an uplink synchronization device 800 according to an exemplary embodiment. The apparatus 800 may be provided as a network device. Referring to fig. 8, the apparatus 800 includes a processing component 822, a wireless transmit/receive component 824, an antenna component 826, and a signal processing portion specific to a wireless interface, and the processing component 822 may further include at least one processor.

One of the processors in the processing component 822 may be configured to perform the uplink synchronization method described in any of the network device sides above.

Correspondingly, the disclosure further provides an uplink synchronization device, which comprises:

a processor;

a memory for storing processor-executable instructions;

Fig. 9 is a block diagram illustrating a duration determining apparatus 900 according to an example embodiment. For example, the apparatus 900 may be a mobile phone, a tablet computer, an electronic book reader, a multimedia playing device, a wearable device, an in-vehicle user device, ipad, a smart television, or the like.

Referring to fig. 9, apparatus 900 may include one or more of the following components: a processing component 902, a memory 904, a power component 906, a multimedia component 908, an audio component 910, an input/output (I/O) interface 912, a sensor component 916, and a communication component 918.

The processing component 902 generally controls overall operations of the apparatus 900, such as operations associated with display, telephone calls, data duration determination, camera operations, and recording operations. The processing component 902 may include one or more processors 920 to execute instructions to perform all or part of the steps of the duration determination method described above. Further, the processing component 902 can include one or more modules that facilitate interaction between the processing component 902 and other components. For example, the processing component 902 can include a multimedia module to facilitate interaction between the multimedia component 908 and the processing component 902. As another example, the processing component 902 may read executable instructions from a memory to implement the steps of one duration determination method provided by the above embodiments.

The memory 904 is configured to store various types of data to support operations at the apparatus 900. Examples of such data include instructions for any application or method operating on the device 900, contact data, phonebook data, messages, pictures, videos, and the like. The memory 904 may be implemented by any type of volatile or nonvolatile memory device or combination thereof, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply component 906 provides power to the various components of the device 900. Power supply components 906 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 900.

The multimedia component 908 comprises a display screen between the device 900 and the user that provides an output interface. In some embodiments, the multimedia component 908 includes a front-facing camera and/or a rear-facing camera. The front-facing camera and/or the rear-facing camera may receive external multimedia data when the apparatus 900 is in an operational mode, such as a photographing mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 910 is configured to output and/or input audio signals. For example, the audio component 910 includes a Microphone (MIC) configured to receive external audio signals when the device 900 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 904 or transmitted via the communication component 918. In some embodiments, the audio component 910 further includes a speaker for outputting audio signals.

The I/O interface 912 provides an interface between the processing component 902 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 916 includes one or more sensors for providing status assessment of various aspects of the apparatus 900. For example, the sensor assembly 916 may detect an on/off state of the device 900, a relative positioning of the components, such as a display and keypad of the device 900, the sensor assembly 916 may also detect a change in position of the device 900 or a component of the device 900, the presence or absence of user contact with the device 900, an orientation or acceleration/deceleration of the device 900, and a change in temperature of the device 900. The sensor assembly 916 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 916 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 916 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 918 is configured to facilitate communication between the apparatus 900 and other devices in a wired or wireless manner. The apparatus 900 may access a wireless network based on a communication standard, such as Wi-Fi,2G,3G,4G,5G, or 6G, or a combination thereof. In one exemplary embodiment, the communication component 918 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 918 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, apparatus 900 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements for performing the method for determining a duration as described in any of the terminal sides above.

In an exemplary embodiment, a non-transitory machine-readable storage medium is also provided, such as a memory 904 comprising instructions executable by the processor 920 of the apparatus 900 to perform the above-described time duration determination method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An uplink synchronization method, wherein the method is performed by a network device, and comprises:

2. The method of claim 1, wherein the first command comprises:

3. The method of claim 2, wherein the first command further comprises at least one of:

a timing advance group identification field;

timing advance command field.

4. A method according to claim 2 or 3, wherein the spatial advance command field comprises at least one of:

5. A method according to claim 2 or 3, wherein the spatial advance command field is used to indicate different index values, each corresponding to an angular coefficient of the network device that varies in one of the spatial dimensions.

6. The method of claim 5, wherein the method further comprises:

And determining the index value corresponding to each angle coefficient.

7. The method of claim 6, wherein the method further comprises:

8. The method according to claim 1, wherein the sending the first command to the terminal comprises any one of:

9. An uplink synchronization method, wherein the method is performed by a terminal and comprises:

receiving a first command sent by network equipment;

10. The method of claim 9, wherein the first command comprises:

11. The method of claim 10, wherein the first command further comprises at least one of:

a timing advance group identification field;

timing advance command field.

12. The method according to claim 10 or 11, wherein the spatial advance command field comprises at least one of:

13. The method according to claim 10 or 11, wherein the spatial advance command field is used to indicate different index values, each of the index values corresponding to an angle coefficient that the network device changes in one of the spatial dimensions.

14. The method of claim 13, wherein the maintaining uplink spatial synchronization with at least the network device based on the first command comprises:

15. The method of claim 14, wherein the determining the angle value that the network device changes in each of the spatial dimensions based on the first command comprises:

16. The method of claim 15, wherein the method further comprises:

17. The method of claim 9, wherein the receiving the first command sent by the network device comprises any one of:

18. An uplink synchronization device, wherein the device is applied to a network device, and comprises:

And the sending module is configured to send a first command to the terminal, wherein the first command is at least used for keeping uplink space synchronization between the terminal and the network equipment.

19. An uplink synchronization device, wherein the device is applied to a terminal, and comprises:

and the uplink synchronization module is configured to keep uplink space synchronization with at least the network equipment based on the first command.

20. A computer readable storage medium, characterized in that the storage medium stores a computer program for executing the uplink synchronization method according to any of the preceding claims 1-8.

21. A computer readable storage medium, characterized in that the storage medium stores a computer program for performing the uplink synchronization method according to any of the preceding claims 9-17.

22. An uplink synchronization device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the uplink synchronization method of any of the preceding claims 1-8.

23. An uplink synchronization device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the uplink synchronization method of any of the preceding claims 9-17.