CN115699917A

CN115699917A - Time precision indication method and device, terminal equipment and network equipment

Info

Publication number: CN115699917A
Application number: CN202080101839.8A
Authority: CN
Inventors: 梁彬; 徐婧; 林亚男
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2023-02-03
Also published as: WO2022027649A1

Abstract

The embodiment of the application provides a time precision indication method and device, a terminal device and a network device, wherein the method comprises the following steps: the method comprises the steps that terminal equipment receives first information, wherein the first information is used for determining the precision of a timing advance TA indication parameter, and the precision is used for determining the time unit number corresponding to the TA indication parameter.

Description

Time precision indication method and device, terminal equipment and network equipment

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a time precision indication method and device, a terminal device and a network device.

Background

In some scenarios, propagation delay compensation is required to enable time synchronization of the physical layer, and the synchronization precision error is within a required range. Generally, a Timing Advance (TA) adjustment value is used for propagation delay compensation, however, the currently used TA adjustment value for propagation delay compensation cannot meet the precision requirement.

Disclosure of Invention

The embodiment of the application provides a time precision indication method and device, terminal equipment and network equipment.

The time precision indicating method provided by the embodiment of the application comprises the following steps:

the method comprises the steps that terminal equipment receives first information, wherein the first information is used for determining the precision of a TA indicating parameter, and the precision is used for determining the time unit number corresponding to the TA indicating parameter.

The time precision indication method provided by the embodiment of the application comprises the following steps:

the method comprises the steps that network equipment sends first information to terminal equipment, wherein the first information is used for determining the precision of TA indicating parameters, and the precision is used for determining the number of time units corresponding to the TA indicating parameters.

The time precision indicating device provided by the embodiment of the application is applied to terminal equipment, and the device comprises:

a receiving unit, configured to receive first information, where the first information is used to determine accuracy of a TA indication parameter, and the accuracy is used to determine a time unit number corresponding to the TA indication parameter.

The time precision indicating device provided by the embodiment of the application is applied to network equipment, and the device comprises:

a sending unit, configured to send first information to a terminal device, where the first information is used to determine accuracy of a TA indication parameter, and the accuracy is used to determine a number of time units corresponding to the TA indication parameter.

The terminal device provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the time precision indication method.

The network device provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the time precision indication method.

The chip provided by the embodiment of the application is used for realizing the time precision indication method.

Specifically, the chip includes: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes the time precision indication method.

The computer-readable storage medium provided in the embodiment of the present application is used for storing a computer program, and the computer program enables a computer to execute the time precision indication method.

The computer program product provided by the embodiment of the application comprises computer program instructions, and the computer program instructions enable a computer to execute the time precision indication method.

The computer program provided by the embodiment of the present application, when running on a computer, causes the computer to execute the time precision indication method described above.

Through the technical scheme, the terminal equipment can determine the precision of the TA indication parameter according to the first information, and further can perform propagation delay compensation according to the TA adjusting value determined by the precision, so that the specific time synchronization precision requirement can be met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

FIG. 2 is a schematic diagram of a TSN provided by an embodiment of the present application;

FIG. 3 is a schematic diagram illustrating the components of the time synchronization accuracy provided by the embodiments of the present application;

fig. 4 is a schematic flowchart of a time precision indication method provided in an embodiment of the present application;

fig. 5 is a schematic diagram of a MAC CE provided in an embodiment of the present application;

fig. 6 is a first schematic structural diagram of a time precision indicating apparatus according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram ii of a time precision indicating apparatus according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

FIG. 9 is a schematic block diagram of a chip of an embodiment of the present application;

fig. 10 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD), a system, a 5G communication system, a future communication system, or the like.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area. Optionally, the Network device 110 may be an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or the Network device may be a mobile switching center, a relay station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network-side device in a 5G Network, or a Network device in a future communication system, and the like.

The communication system 100 further comprises at least one terminal 120 located within the coverage area of the network device 110. As used herein, "terminal" includes, but is not limited to, connection via a wireline, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a Digital cable, a direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., for a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal that is arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal can refer to an access terminal, user Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or User Equipment. An access terminal may be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with Wireless communication capability, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal in a 5G network or a terminal in a future evolved PLMN, etc.

Optionally, the terminals 120 may perform direct-to-Device (D2D) communication therebetween.

Alternatively, the 5G communication system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.

Fig. 1 exemplarily shows one network device and two terminals, alternatively, the communication system 100 may include a plurality of network devices and may include other numbers of terminals in the coverage area of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal 120 having a communication function, and the network device 110 and the terminal 120 may be the specific devices described above and are not described again here; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association relationship describing an associated object, and means that there may be three relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the technical solutions related to the embodiments of the present application are described below.

The 5G Industrial Internet of Things (IIoT) supports the transmission of services such as Industrial automation, transmission automation, intelligent power and the like in a 5G system. Based on the transmission requirements of Time delay and reliability, IIoT introduces the concept of Time Sensitive Network (TSN) or Time Sensitive Communication (TSC). As shown in fig. 2, in the TSN, a 5G system (5G system, 5gs) serves as a TSN bridge (TSN bridge) for the TSN. In this regard, the NR system needs to provide lower latency guarantees and higher clock synchronization accuracy, so that the operation and connection accuracy of each point of mechanical operation is time-qualified when industrial automation services are transmitted in a 5G network.

Based on the requirement of TSN service transmission, when the TSN service is transmitted in a 5G system, the requirement of 1us of time synchronization precision needs to be met. As shown in fig. 3, whether or not the time synchronization accuracy of 1us can be achieved is related to the time synchronization accuracy (accuracy) notified by the network and the time synchronization accuracy error (delta) on the terminal device side. The time synchronization accuracy error on the terminal device side is related to many factors, such as propagation loss and device limitation. The time synchronization accuracy information notified by the network is contained in a time reference information element (TimeReferenceInfo IE).

In some scenarios, propagation delay compensation is required to make the time synchronization accuracy error of the physical layer within a required range. Typically, propagation delay compensation is performed using a TA adjustment value, which is indicated by N in a Random Access Response (RAT) _TA And T indicated in Media Access Control Element (MAC CE) _A Determining where N is _TA Is a first value representing a first value of TA, T _A Is the second value, representing the second value of TA. Each TA value corresponds to a symbol length of 16 samples for a subcarrierUnder the condition that the wave interval is 15kHz, each TA value corresponds to about 509ns, and when the requirement of time synchronization precision error is high (such as 500ns on a single side), the propagation delay compensation by using the TA adjusting value obviously cannot meet the precision requirement, and further research is needed for the condition.

Therefore, the following technical solutions of the embodiments of the present application are proposed, which enhance the TA indication accuracy (i.e., the accuracy of the TA indication parameter).

Fig. 4 is a schematic flowchart of a time precision indication method provided in an embodiment of the present application, and as shown in fig. 4, the time precision indication method includes the following steps:

step 401: the method comprises the steps that terminal equipment receives first information, wherein the first information is used for determining the precision of TA indicating parameters, and the precision is used for determining the time unit number corresponding to the TA indicating parameters.

In the embodiment of the application, the network device sends the first information to the terminal device, and correspondingly, the terminal device receives the first information sent by the network device. Here, the network device may be a base station, such as a gNB.

In this embodiment of the application, the first information is used to determine the accuracy of one TA indication parameter or the accuracy common to a plurality of TA indication parameters, the first information may also be referred to as accuracy indication information, and the terminal device may determine the accuracy of the TA indication parameter based on the first information.

In the embodiment of the present application, the accuracy is characterized by a first time unit number, and the time unit number corresponding to the TA indication parameter is determined based on a product of the first time unit number and a value of the TA indication parameter. Specifically, when the value of the TA indication parameter is 1, the number of time units corresponding to the TA indication parameter is the first number of time units.

In an alternative, a time unit comprises one sample symbol, i.e. the length of a time unit is equal to the length of one sample symbol.

In another alternative, a time unit comprises a plurality of sample symbols, i.e. the length of a time unit is equal to the length of a plurality of sample symbols.

In the embodiment of the present application, the length of one sample symbol is related to the subcarrier spacing. In one example, the length of a sample symbol may be determined based on the following equation: ts = K × Tc; where Ts represents the length of a sample symbol, tc represents the fixed length, and K is related to the subcarrier spacing.

In this embodiment of the application, the first information is M2-bit information, M2 is a positive integer, the M2-bit information is used to indicate P kinds of precisions, and a value of P is determined based on a value of M2.

In one example, the first information is 1-bit information, and the 1-bit information is used for indicating 2 kinds of precisions. For example: when the 1-bit information is 0, the precision corresponds to 16 sample symbols. When the 1-bit information is 1, the precision corresponds to 8 sample symbols.

In one example, the first information is 2-bit information, and the 2-bit information is used for indicating 4 kinds of precisions. For example: when the 2-bit information is 00, the precision corresponds to 16 sample symbols. When the 2-bit information is 01, the precision corresponds to 8 sample symbols. With 10 bits of information, the precision corresponds to 4 sample symbols. With 11 bits of information, the precision corresponds to 2 sample symbols.

In the embodiment of the present application, the terminal device determines a TA adjustment value based on the accuracy, where the TA adjustment value is used to compensate for propagation delay. Further, the terminal device performs propagation delay compensation by using the determined TA adjustment value.

How to determine the TA adjustment value based on the accuracy is described below.

● In an optional manner of this application, the first information is used to determine accuracy of a first TA indication parameter, where the first TA indication parameter is carried in a MAC CE. The terminal equipment determines a TA adjustment value based on the accuracy and the first TA indication parameter.

Here, in the RRC connected state, the terminal device receives the MAC CE sent by the network device, where the MAC CE carries the first TA indication parameter.

In one example, the first TA indicator parameter takes on a value through T _A The precision is represented by N2, and the number of time units corresponding to the first TA indication parameter is T _A ×N2。

Further, the terminal device determines a TA adjustment value based on the following formula: t + T _A X N2; wherein T represents the first sub-TA adjustment value, T _A XN 2 represents the second sub-TA adjustment value, T _A Representing the value of the first TA indicator parameter, and N2 representing the accuracy.

In the above scheme, the value of T may be determined by any one of the following manners:

the first method is as follows: the value of T is determined based on the following formula: t = N _TA xN 1; wherein, N _TA And representing the value of a second TA indication parameter, wherein the second TA indication parameter is carried in a Random Access Response (RAR), and N1 represents the precision of the second TA indication parameter. In one example, the value of N1 is 16.

For the first mode, the TA adjustment value finally determined by the terminal device is: n is a radical of _TA ×N1+T _A XN 2. Taking the value of N1 as 16 as an example, the TA adjustment value finally determined by the terminal device is: n is a radical of hydrogen _TA ×16+T _A ×N2。

The second method comprises the following steps: the value of T is determined based on the following formula: t = TA _old (ii) a Wherein, TA _old Representing the TA adjustment value used the last time the time advance adjustment or transmission delay compensation was made.

For the second mode, the TA adjustment value finally determined by the terminal device is: TA (TA) _old +T _A ×N2。

● In an optional manner of this application, the first information is used to determine a common accuracy of a first TA indication parameter and a second TA indication parameter, where the first TA indication parameter is carried in a MAC CE, and the second TA indication parameter is carried in a RAR. The terminal device determines a TA adjustment value based on the accuracy, the first TA indication parameter and the second TA indication parameter.

Here, in the initial access procedure, the terminal device receives an RAR sent by the network device, where the RAR carries the second TA indication parameter. After the initial access successfully enters the RRC connection state, the terminal equipment receives the MAC CE sent by the network equipment, and the MAC CE carries the first TA indication parameter.

In one example, the second TA indication parameter takes a value through N _TA The precision is represented by N2, and the number of time units corresponding to the second TA indication parameter is N _TA ×N2。

Further, the terminal device determines a TA adjustment value based on the following formula: n is a radical of _TA ×N2+T _A xN 2; wherein N is _TA Represents the value of the second TA indicator parameter, T _A Representing the value of the first TA indicator parameter, and N2 representing the accuracy.

In this embodiment, the first information is carried in the MAC CE. Or, the first information is carried in a first signaling, and the first signaling is different from the MAC CE.

In one example, the first information may be carried by some bits (e.g., redundancy bits) in a MAC CE (which is the MAC CE carrying the first TA indication parameter). Referring to fig. 5, fig. 5 is a schematic diagram of a MAC CE, where the MAC CE carries first information and T _A Wherein, T _A Representing a first TA indication parameter.

In one example, the first information is carried by separate signaling, i.e., the first information and the first TA indication parameter (i.e., T) _A ) Through separate signaling bearers, for example: the first information is carried by adding a new signaling TAgranularity (i.e. the first signaling), and the MAC CE carries T _A 。

In this embodiment of the present application, the first TA indication parameter is M1 bit information, and M1 is a positive integer; and the TA value range indicated by the first TA indication parameter is determined based on the value of the M1 and the precision.

Specifically, the TA value range indicated by the first TA indication parameter is (-2 ^ M1/2+ 1) × N2 to 2^ M1/2 × N2, wherein N2 represents the precision. Based on this, if the value of M1 is unchanged and the value of N2 is small, the value range is small. If the value of M1 becomes larger and the value of N2 becomes smaller, the value range may be unchanged.

In this embodiment of the present application, the second TA indication parameter is M3-bit information, and M3 is a positive integer; and the TA value range indicated by the second TA indication parameter is determined based on the value of the M3 and the precision.

Specifically, the TA value range indicated by the second TA indication parameter is (-2 ^ M3/2+ 1) × N2 to 2^ M3/2 × N2, wherein N2 represents the precision. Based on this, if the value of M3 is unchanged and the value of N2 is small, the value range is small. If the value of M3 becomes larger and the value of N2 becomes smaller, the value range may be unchanged.

The technical solutions of the embodiments of the present application are illustrated below with reference to specific application examples.

Example one:

the first information is used for determining T in MAC CE _A The accuracy of (2). The first information is 1-bit information, and two kinds of precisions are indicated by the 1-bit information, for example: precision 1 corresponds to 16 sample symbols and precision 2 corresponds to 8 sample symbols.

Furthermore, N in RAR _TA Corresponds to 16 sample symbols.

When the first information is 0, T _A The precision of (2) corresponds to 16 sample symbols, and the TA adjustment value used in propagation delay compensation is as follows: n is a radical of _TA *16+T _A *16。

When the first information is 1, T _A The accuracy of (2) corresponds to 8 sample symbols, and the TA adjustment value used in propagation delay compensation is: n is a radical of _TA *16+T _A *8。

Example two:

the first information is used for determining T in MAC CE _A The accuracy of (2). The first information is 1-bit information, and two kinds of essences are indicated by the 1-bit informationDegrees, for example: precision 1 corresponds to 16 sample symbols and precision 2 corresponds to 8 sample symbols.

When the first information is 0, T _A The precision of (2) corresponds to 16 sample symbols, and the TA adjustment value used in propagation delay compensation is as follows: TA (TA) _old +T _A *16。

When the first information is 1, T _A The accuracy of (2) corresponds to 8 sample symbols, and the TA adjustment value used in propagation delay compensation is: TA (timing advance) _old +T _A *8。

Here, TA _old Representing the TA adjustment value used the last time the time advance adjustment or transmission delay compensation was made.

Example three:

the first information is used for determining N in RAR _TA And T in MAC CE _A Common precision. Two kinds of precision are indicated by 1-bit information, for example: precision 1 corresponds to 16 sample symbols and precision 2 corresponds to 8 sample symbols.

When the first information is 0, N _TA And T _A The common precision corresponds to 16 sample symbols, and the TA adjustment value used in propagation delay compensation is: n is a radical of _TA *16+T _A *16。

When the first information is 1, N _TA And T _A The common precision corresponds to 8 sample symbols, and the TA adjustment value used in propagation delay compensation is: n is a radical of _TA *8+T _A *8。

Example four:

the first information is used for determining T in MAC CE _A The accuracy of (2). The first information is 2-bit information, and four kinds of precisions are indicated by the 2-bit information, for example: precision 1 corresponds to 16 sample symbols, precision 2 corresponds to 8 sample symbols, precision 3 corresponds to 4 sample symbols, and precision 4 corresponds to 2 sample symbols.

Furthermore, N in RAR _TA Corresponds to 16 sample symbols.

When the first information is 00, T _A Corresponds to 16 sample symbols, and compensates for propagation delayThe TA adjustment values used were: n is a radical of _TA *16+T _A *16。

When the first information is 01, T _A The accuracy of (2) corresponds to 8 sample symbols, and the TA adjustment value used in propagation delay compensation is: n is a radical of _TA *16+T _A *8。

When the first information is 10, T _A The precision of (2) corresponds to 4 sample value symbols, and the TA adjustment value used in propagation delay compensation is as follows: n is a radical of _TA *16+T _A *4。

When the first information is 11, T _A The precision of (2) corresponds to 2 sample symbols, and the TA adjustment value used in propagation delay compensation is as follows: n is a radical of hydrogen _TA *16+T _A *2。

Example five:

When the first information is 00, T _A The precision of (2) corresponds to 16 sample symbols, and the TA adjustment value used in propagation delay compensation is as follows: TA (TA) _old +T _A *16。

When the first information is 01, T _A The precision of (2) corresponds to 8 sample value symbols, and the TA adjustment value used in propagation delay compensation is as follows: TA (TA) _old +T _A *8。

When the first information is 10, T _A The accuracy of (2) corresponds to 4 sample symbols, and the TA adjustment value used in propagation delay compensation is: TA (TA) _old +T _A *4。

When the first information is 11, T _A The precision of (2) corresponds to 2 sample symbols, and the TA adjustment value used in propagation delay compensation is as follows: TA (timing advance) _old +T _A *2。

Example six:

the first information is used for determining N in RAR _TA And T in MAC CE _A Common precision. The first information is 2-bit information, and four kinds of precisions are indicated by the 2-bit information, for example: precision 1 corresponds to 16 sample symbols, precision 2 corresponds to 8 sample symbols, precision 3 corresponds to 4 sample symbols, and precision 4 corresponds to 2 sample symbols.

When the first information is 00, N _TA And T _A The common precision corresponds to 16 sample symbols, and the TA adjustment value used in propagation delay compensation is: n is a radical of hydrogen _TA *16+T _A *16。

When the first information is 01, N _TA And T _A The common precision corresponds to 8 sample symbols, and the TA adjustment value used in propagation delay compensation is: n is a radical of _TA *8+T _A *8。

When the first information is 10, N _TA And T _A The common precision corresponds to 4 sample symbols, and the TA adjustment value used in propagation delay compensation is: n is a radical of hydrogen _TA *4+T _A *4。

When the first information is 11, N _TA And T _A The common precision corresponds to 2 sample value symbols, and the TA adjustment value used in propagation delay compensation is as follows: n is a radical of hydrogen _TA *2+T _A *2。

Example seven:

The TA value range indicated by the first TA indication parameter is (-2 ^ M1/2+ 1). Times.N 2 to 2^ M1/2 xN 2, wherein M1 represents T _A N2 represents precision.

If the TA value ranges indicated by the first TA indication parameter under the two accuracies are the same, the T corresponding to the accuracy 2 _A T corresponding to the number of bits of precision 1 _A The number of bits of (a) needs to be increased.

If the precision 2 corresponds to T _A The number of bits of (2) corresponds to the precision 1T _A If the bit number of the first TA indicator parameter is not changed, the TA value range indicated by the first TA indicator parameter under the precision 2 is smaller than the TA value range indicated by the first TA indicator parameter under the precision 1.

Example eight:

The TA value range indicated by the first TA indication parameter is (-2 ^ M1/2+ 1) xN 2 to 2^ M1/2 xN 2, wherein M1 represents T _A N2 represents precision.

The TA value range indicated by the second TA indication parameter is (-2 ^ M3/2+ 1) × N2 to 2^ M3/2 × N2, wherein M3 represents N _TA N2 represents precision.

If the TA value ranges (i.e., TA adjustment values) jointly indicated by the first TA indication parameter and the second TA indication parameter are the same under the two accuracies, the T corresponding to the accuracy 2 _A T corresponding to the number of bits of precision 1 _A The number of bits of (a) needs to be increased.

If the precision 2 corresponds to T _A T corresponding to the number of bits of precision 1 _A If the bit number is not changed, the TA value range of the combined indication of the first TA indication parameter and the second TA indication parameter at the precision 2 is smaller than the TA value range of the combined indication of the first TA indication parameter and the second TA indication parameter at the precision 1.

Fig. 6 is a schematic structural diagram of a time precision indicating apparatus provided in an embodiment of the present application, which is applied to a terminal device, and as shown in fig. 6, the time precision indicating apparatus includes:

a receiving unit 601, configured to receive first information, where the first information is used to determine accuracy of a TA indication parameter, and the accuracy is used to determine a number of time units corresponding to the TA indication parameter.

In an optional manner, the accuracy is characterized by a first time unit number, when the value of the TA indicator parameter is 1, the time unit number corresponding to the TA indicator parameter is the first time unit number, and when the value of the TA indicator parameter is greater than 1, the time unit number corresponding to the TA indicator parameter is determined based on a product of the first time unit number and the value of the TA indicator parameter.

In an optional manner, the first information is used to determine accuracy of a first TA indication parameter, where the first TA indication parameter is carried in a MAC CE.

In an optional manner, the apparatus further comprises: a determining unit 602, configured to determine a TA adjustment value based on the accuracy and the first TA indication parameter.

In an alternative, the determining unit 602 is configured to determine the TA adjustment value based on the following formula:

T+T _A ×N2；

wherein T represents the first sub-TA adjustment value, T _A XN 2 represents the second sub-TA adjustment value, T _A Representing the value of the first TA indicator parameter, and N2 representing the precision.

In an alternative, the value of T is determined based on the following formula:

T＝N _TA ×N1；

wherein N is _TA And representing the value of a second TA indicating parameter, wherein the second TA indicating parameter is carried in a Random Access Response (RAR), and N1 represents the precision of the second TA indicating parameter.

In an optional manner, the value of N1 is 16.

In an optional manner, the value of T is determined based on the following formula:

T＝TA _old ；

wherein, TA _old Representing the TA adjustment value used the last time the time advance adjustment or transmission delay compensation was made.

In an optional manner, the first information is used to determine a common accuracy of a first TA indication parameter and a second TA indication parameter, where the first TA indication parameter is carried in the MAC CE, and the second TA indication parameter is carried in the RAR.

In an optional manner, the apparatus further comprises: a determining unit 602, configured to determine a TA adjustment value based on the accuracy, the first TA indication parameter, and the second TA indication parameter.

N _TA ×N2+T _A ×N2；

wherein N is _TA Represents the value of the second TA indicator parameter, T _A Representing the value of the first TA indicator parameter, and N2 representing the precision.

In an optional manner, the first information is carried in the MAC CE.

In an optional manner, the first information is carried in a first signaling, and the first signaling is different from the MAC CE.

In an optional manner, the first TA indication parameter is M1-bit information, and M1 is a positive integer;

and the TA value range indicated by the first TA indication parameter is determined based on the value of the M1 and the precision.

In an optional manner, the TA value range of the first TA indication parameter indication is (-2 ^ M1/2+ 1). Times.N 2 to 2^ M1/2 xN 2, wherein N2 represents the precision.

In an optional manner, the first information is M2-bit information, M2 is a positive integer, the M2-bit information is used to indicate P kinds of precisions, and a value of P is determined based on a value of M2.

It should be understood by those skilled in the art that the above description of the time precision indicating apparatus of the embodiment of the present application can be understood by referring to the description of the time precision indicating method of the embodiment of the present application.

Fig. 7 is a schematic structural diagram of a time precision indicating apparatus provided in an embodiment of the present application, which is applied to a network device, and as shown in fig. 7, the time precision indicating apparatus includes:

a sending unit 701, configured to send first information to a terminal device, where the first information is used to determine accuracy of a TA indication parameter, and the accuracy is used to determine a number of time units corresponding to the TA indication parameter.

In an optional manner, the first information is carried in the MAC CE.

In an optional manner, the TA value range indicated by the first TA indication parameter is (-2 ^ M1/2+ 1) × N2 to 2^ M1/2 × N2, where N2 represents the precision.

Fig. 8 is a schematic structural diagram of a communication device 800 according to an embodiment of the present application. The communication device may be a terminal device or a network device, and the communication device 800 shown in fig. 8 includes a processor 810, and the processor 810 may call and execute a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 8, the communication device 800 may also include a memory 820. From the memory 820, the processor 810 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 820 may be a separate device from the processor 810 or may be integrated into the processor 810.

Optionally, as shown in fig. 8, the communication device 800 may further include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 830 may include a transmitter and a receiver, among others. The transceiver 830 may further include one or more antennas.

Optionally, the communication device 800 may specifically be a network device in the embodiment of the present application, and the communication device 800 may implement a corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the communication device 800 may specifically be a mobile terminal/terminal device according to this embodiment, and the communication device 800 may implement a corresponding process implemented by the mobile terminal/terminal device in each method according to this embodiment, which is not described herein again for brevity.

Fig. 9 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 900 shown in fig. 9 includes a processor 910, and the processor 910 can call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 9, the chip 900 may further include a memory 920. From the memory 920, the processor 910 can call and run a computer program to implement the method in the embodiment of the present application.

The memory 920 may be a separate device from the processor 910, or may be integrated in the processor 910.

Optionally, the chip 900 may further comprise an input interface 930. The processor 910 can control the input interface 930 to communicate with other devices or chips, and in particular, can obtain information or data transmitted by other devices or chips.

Optionally, the chip 900 may further include an output interface 940. The processor 910 may control the output interface 940 to communicate with other devices or chips, and in particular, may output information or data to the other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, and for brevity, no further description is given here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 10 is a schematic block diagram of a communication system 1000 provided in an embodiment of the present application. As shown in fig. 10, the communication system 1000 includes a terminal device 1010 and a network device 1020.

The terminal device 1010 may be configured to implement the corresponding function implemented by the terminal device in the foregoing method, and the network device 1020 may be configured to implement the corresponding function implemented by the network device in the foregoing method, for brevity, no further description is provided here.

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

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), dynamic Random Access Memory (DRAM), synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), enhanced Synchronous SDRAM (ESDRAM), synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), synchronous Link DRAM (SLDRAM), direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

An embodiment of the present application further provides a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables a computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal device in the embodiment of the present application, and the computer program instruction causes the computer to execute a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute a corresponding process implemented by the mobile terminal/terminal device in each method in the embodiment of the present application, which is not described herein again for brevity.

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

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

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

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

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

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

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

Claims

A method of time accuracy indication, the method comprising:

the method comprises the steps that terminal equipment receives first information, wherein the first information is used for determining the precision of a timing advance TA indication parameter, and the precision is used for determining the time unit number corresponding to the TA indication parameter.
The method according to claim 1, wherein the accuracy is characterized by a first time unit number, and when the TA indicator parameter takes a value of 1, the time unit number corresponding to the TA indicator parameter is the first time unit number, and when the TA indicator parameter takes a value greater than 1, the time unit number corresponding to the TA indicator parameter is determined based on a product of the first time unit number and the TA indicator parameter.
The method according to claim 1 or 2, wherein the first information is used to determine the accuracy of a first TA indication parameter carried in a medium access control element, MAC CE.
The method of claim 3, wherein the method further comprises:

and the terminal equipment determines a TA adjusting value based on the precision and the first TA indicating parameter, wherein the TA adjusting value is used for compensating the propagation delay.
The method of claim 4, wherein the terminal device determines a TA adjustment value based on the accuracy and the first TA indication parameter, comprising:

the terminal device determines a TA adjustment value based on the following formula:

T+T _A ×N2；

wherein T represents the first sub-TA adjustment value, T _A XN 2 represents the second sub-TA adjustment value, T _A Representing the value of the first TA indicator parameter, and N2 representing the precision.
The method of claim 5, wherein the value of T is determined based on the following equation:

T＝N _TA ×N1；

wherein N is _TA And representing the value of a second TA indicating parameter, wherein the second TA indicating parameter is carried in a Random Access Response (RAR), and N1 represents the precision of the second TA indicating parameter.
The method of claim 6, wherein the value of N1 is 16.
The method of claim 5, wherein the value of T is determined based on the following equation:

T＝TA _old ；

wherein, TA _old Representing the TA adjustment value used last time the time advance adjustment or transmission delay compensation was made.
The method according to claim 1 or 2, wherein the first information is used to determine an accuracy common to a first TA indication parameter carried in the MAC CE and to a second TA indication parameter carried in the RAR.
The method of claim 9, wherein the method further comprises:

the terminal equipment determines a TA adjustment value based on the accuracy, the first TA indication parameter and the second TA indication parameter.
The method of claim 10, wherein the terminal device determines a TA adjustment value based on the accuracy, the first TA indication parameter, and the second TA indication parameter, comprising:

the terminal equipment determines a TA adjustment value based on the following formula:

N _TA ×N2+T _A ×N2；

wherein N is _TA Represents a value of the second TA indication parameter, T _A Representing the value of the first TA indicator parameter, and N2 representing the accuracy.
The method according to any of claims 3 to 11, wherein the first information is carried in the MAC CE.
The method of any one of claims 3 to 11, wherein the first information is carried in first signaling, the first signaling being different from the MAC CE.
The method according to any of claims 3-13, wherein the first TA indication parameter is M1 bit information, M1 being a positive integer;

and the TA value range indicated by the first TA indication parameter is determined based on the value of the M1 and the precision.
The method of claim 14 wherein the first TA indication parameter indicates a TA value in the range (-2 a/m 1/2+ 1) x N2 to 2 a/m 1/2 x N2, wherein N2 represents the precision.
The method according to any one of claims 1 to 15, wherein the first information is M2-bit information, M2 is a positive integer, the M2-bit information is used to indicate P kinds of precisions, and a value of P is determined based on a value of M2.
A method of time accuracy indication, the method comprising:

the method comprises the steps that network equipment sends first information to terminal equipment, wherein the first information is used for determining the precision of TA indicating parameters, and the precision is used for determining the number of time units corresponding to the TA indicating parameters.
The method according to claim 17, wherein the accuracy is characterized by a first time unit number, and when the TA indicator parameter takes a value of 1, the time unit number corresponding to the TA indicator parameter is the first time unit number, and when the TA indicator parameter takes a value greater than 1, the time unit number corresponding to the TA indicator parameter is determined based on a product of the first time unit number and the TA indicator parameter.
The method according to claim 17 or 18, wherein the first information is used to determine the accuracy of a first TA indication parameter carried in a MAC CE.
The method according to claim 17 or 18, wherein the first information is used to determine an accuracy common to a first TA indication parameter carried in the MAC CE and a second TA indication parameter carried in the RAR.
The method of claim 19 or 20, wherein the first information is carried in the MAC CE.
The method of claim 19 or 20, wherein the first information is carried in first signaling, the first signaling being different from the MAC CE.
The method according to any of claims 19-22, wherein the first TA indication parameter is M1 bit information, M1 being a positive integer;

and the TA value range indicated by the first TA indication parameter is determined based on the value of the M1 and the precision.
The method of claim 23, wherein the first TA indicator parameter indicates a TA value ranging from (-2 ^ m1/2+ 1) × N2 to 2^ m1/2 × N2, where N2 represents the precision.
The method according to any one of claims 17 to 24, wherein the first information is M2-bit information, M2 is a positive integer, the M2-bit information is used to indicate P kinds of precisions, and a value of P is determined based on a value of M2.
A time precision indicating device is applied to terminal equipment, and the device comprises:

a receiving unit, configured to receive first information, where the first information is used to determine accuracy of a TA indication parameter, and the accuracy is used to determine a number of time units corresponding to the TA indication parameter.
The apparatus of claim 26, wherein the accuracy is characterized by a first time unit number, and when the TA indicator parameter takes a value of 1, the time unit number corresponding to the TA indicator parameter is the first time unit number, and when the TA indicator parameter takes a value greater than 1, the time unit number corresponding to the TA indicator parameter is determined based on a product of the first time unit number and the TA indicator parameter.
The apparatus of claim 26 or 27, wherein the first information is used to determine an accuracy of a first TA indication parameter carried in a MAC CE.
The apparatus of claim 28, wherein the apparatus further comprises:

a determining unit configured to determine a TA adjustment value based on the accuracy and the first TA indication parameter.
The apparatus of claim 29, wherein the means for determining determines a TA adjustment value based on the following equation:

T+T _A ×N2；

wherein T represents the first sub-TA adjustment value, T _A XN 2 represents the second sub-TA adjustment value, T _A Representing the value of the first TA indicator parameter, and N2 representing the precision.
The apparatus of claim 30, wherein the value of T is determined based on the following equation:

T＝N _TA ×N1；

wherein, N _TA And representing the value of a second TA indication parameter, wherein the second TA indication parameter is carried in a Random Access Response (RAR), and N1 represents the precision of the second TA indication parameter.
The apparatus of claim 31, wherein the value of N1 is 16.
The apparatus of claim 30, wherein the value of T is determined based on the following equation:

T＝TA _old ；

wherein, TA _old Representing the TA adjustment value used the last time the time advance adjustment or transmission delay compensation was made.
The apparatus according to claim 26 or 27, wherein the first information is for determining an accuracy common to a first TA indication parameter carried in a MAC CE and to a second TA indication parameter carried in a RAR.
The apparatus of claim 34, wherein the apparatus further comprises:

a determining unit configured to determine a TA adjustment value based on the accuracy, the first TA indication parameter, and the second TA indication parameter.
The apparatus of claim 35, wherein the means for determining determines a TA adjustment value based on the following equation:

N _TA ×N2+T _A ×N2；

wherein N is _TA Represents the value of the second TA indicator parameter, T _A Representing the value of the first TA indicator parameter, and N2 representing the precision.
The apparatus of any one of claims 28 to 36, wherein the first information is carried in the MAC CE.
The apparatus of any one of claims 28-36, wherein the first information is carried in first signaling, the first signaling being different from the MAC CE.
The apparatus according to any of claims 28 to 38, wherein the first TA indication parameter is M1 bit information, M1 being a positive integer;

and the TA value range indicated by the first TA indication parameter is determined based on the value of the M1 and the precision.
The apparatus of claim 39, wherein the first TA indication parameter indicates a TA ranging from (-2 ^ M1/2+ 1) × N2 to 2^ M1/2 × N2, wherein N2 represents the precision.
The apparatus according to any one of claims 26 to 40, wherein the first information is M2-bit information, M2 is a positive integer, the M2-bit information is used to indicate P kinds of precisions, and a value of P is determined based on a value of M2.
A time precision indicating device is applied to network equipment, and the device comprises:

a sending unit, configured to send first information to a terminal device, where the first information is used to determine accuracy of a TA indication parameter, and the accuracy is used to determine a number of time units corresponding to the TA indication parameter.
The apparatus of claim 42, wherein the accuracy is characterized by a first time unit number, and when the TA indicator parameter takes a value of 1, the time unit number corresponding to the TA indicator parameter is the first time unit number, and when the TA indicator parameter takes a value greater than 1, the time unit number corresponding to the TA indicator parameter is determined based on a product of the first time unit number and the TA indicator parameter.
The apparatus of claim 42 or 43, wherein the first information is used to determine an accuracy of a first TA indication parameter carried in a MAC CE.
The apparatus according to claim 42 or 43, wherein the first information is for determining an accuracy common to a first TA indication parameter carried in a MAC CE and to a second TA indication parameter carried in a RAR.
The apparatus of claim 44 or 45, wherein the first information is carried in the MAC CE.
The apparatus of claim 44 or 45, wherein the first information is carried in first signaling, the first signaling being different from the MAC CE.
The apparatus of any one of claims 44-47, wherein the first TA indication parameter is M1 bit information, M1 being a positive integer;

and the TA value range indicated by the first TA indication parameter is determined based on the value of the M1 and the precision.
The apparatus of claim 48, wherein the first TA indication parameter indicates a TA value ranging from (-2 ^ M1/2+ 1). Times.N 2 to 2^ M1/2 xN 2, wherein N2 represents the precision.
The apparatus of any one of claims 42 to 49, wherein the first information is M2-bit information, M2 is a positive integer, the M2-bit information is used to indicate P kinds of precisions, and a value of P is determined based on a value of M2.
A terminal device, comprising: a processor and a memory for storing a computer program, the processor for invoking and executing the computer program stored in the memory, performing the method of any of claims 1 to 16.
A network device, comprising: a processor and a memory for storing a computer program, the processor being adapted to invoke and execute the computer program stored in the memory to perform the method of any of claims 17 to 25.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 16.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 17 to 25.
A computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 16.
A computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 17 to 25.
A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 1 to 16.
A computer program product comprising computer program instructions to cause a computer to perform the method of any of claims 17 to 25.
A computer program for causing a computer to perform the method of any one of claims 1 to 16.
A computer program for causing a computer to perform the method of any one of claims 17 to 25.