CN108964819B - A kind of clock adjustment, clock jitter calculation method, equipment and system - Google Patents

Abstract

The embodiment of the present application provides a kind of clock adjustment, clock jitter calculation method, equipment and system, is related to field of communication technology, can be improved the synchronization accuracy between terminal and access network equipment.The specific scheme is that terminal sends the first signal to access network equipment；Receive the first moment value that access network equipment is sent and when signal be inclined, at the time of the first moment value indicates that access network equipment receives the first signal, when signal when partially including residual inclined Δ t, the absolute value of Δ t be less than timing advance TA and adjust granularity；According to inclined and the second moment value when the first moment value, signal, clock jitter is calculated, at the time of the second moment value instruction terminal sends the first signal, clock jitter is the time difference in terminal between the first clock configured and the second clock configured in access network equipment；The first clock is adjusted according to clock jitter.The embodiment of the present application is used for synchronised clock.

Description

A kind of clock adjustment, clock jitter calculation method, equipment and system

Technical field

The invention relates to field of communication technology more particularly to a kind of adjustment of clock, clock jitter calculation method, set Standby and system.

Background technique

In field of industrial manufacturing, a certain production task is completed in order to cooperate, multiple industrial equipments need to keep high-precision Clock is synchronous.The future of industry manufacture is intelligent and networking, and it is the development trend in future that wireless communication, which replaces wire communication,. Cellular network technologies, will due to the industrial chain that reliable link level performance, perfect function and characteristic are supported and maturation is perfect Optimization technique direction as wireless industrial.However, there is no specific clock synchronization schemes in current cellular networks technology.

In existing wireless synchronization technology, base station 1 and base station 2 in network record the same that same terminal is sent respectively The absolute time T1 and T2 that upstream message reaches, and calculate the propagation delay time Tp1 and Tp2 of the message.Wherein T1-Tp1 is with base It stands on the basis of 1 local clock, the sending instant of the upstream message of reckoning, T2-Tp2 is using the local clock of base station 2 as base Standard, the sending instant of the upstream message of reckoning, difference (T1-Tp1)-(T2-Tp2) of two sending instants are 1 He of base station The clock jitter of base station 2.Wherein, propagation delay time Tp1 and Tp2 passes through terminal first timing advance corresponding with base station 1 respectively The 1/2 of 1/2 and the terminal of (timing advance, TA) second timing advance TA corresponding with base station 2 replaces.

What above scheme in the prior art solved is the clock synchronization issue between base station, not can solve the clock of whole net Synchronous, especially base station is synchronous with the clock of terminal time.Also, TA is the demodulation for upstream data and designs, the amount of TA Changing unit is that TA adjusts granularity.It is usually larger that TA adjusts granularity, such as under 20MHz bandwidth, 30.72MHz sample rate, TA adjustment Granularity is 16T_S(T_SFor the sampling period), i.e. 0.52 μ s.Thus, replace propagation delay time with TA value, will so that propagation delay time and when The computation-bound of clock deviation is in the size of TA adjustment granularity, so that synchronization accuracy is poor.

Summary of the invention

The embodiment of the present application provides a kind of clock adjustment, clock jitter calculation method, equipment and system, can be improved terminal Synchronization accuracy between access network equipment.

In order to achieve the above objectives, the embodiment of the present application adopts the following technical scheme that

In a first aspect, the embodiment of the present application provides a kind of clock adjusting method, this method comprises: terminal is to access network equipment Send the first signal.Then, terminal receives inclined when the first moment value and signal that access network equipment is sent.Wherein, the first moment At the time of value instruction access network equipment receives the first signal, inclined Δ t when partially including residual when signal, it is fixed that the absolute value of Δ t is less than Shi Tiqian TA adjusts granularity.Later, terminal calculates clock jitter according to inclined and the second moment value when the first moment value, signal.Its In, at the time of the second moment value instruction terminal sends the first signal, clock jitter is the first clock configured in terminal and access The time difference between second clock configured in net equipment.In turn, terminal adjusts the first clock according to clock jitter.

In this way, the Δ t that terminal can be less than TA adjustment granularity according to its absolute value calculates clock jitter, so that clock jitter Calculating be not limited by the size of TA adjustment granularity, so as to improve the computational accuracy of clock jitter, so according to when Corresponding first clock of clock deviation adjusting terminal, so that the first clock second clock corresponding with access network equipment keeps synchronous When, it can be improved synchronization accuracy.

It with reference to first aspect, in one possible implementation, partially further include timing advance TA adjusted value Δ when signal TA, Δ TA are the integral multiple that TA adjusts granularity.In this way, clock jitter can be calculated according to Δ TA and Δ t.

With reference to first aspect with above-mentioned possible implementation, in alternatively possible implementation, the first signal is Lead code (Preamble) sequence, method further include: the initial value of TA is arranged according to Δ TA for terminal.In this way, can be by random Access procedure realizes that clock is synchronous.

It is stored in terminal in alternatively possible implementation with above-mentioned possible implementation with reference to first aspect There are timing advance TA, this method further include: terminal adjusts TA according to Δ TA.It, can be in this way, while realizing that clock is synchronous Update TA.

With reference to first aspect with above-mentioned possible implementation, in alternatively possible implementation, terminal is connect The first moment value and when signal that log equipment is sent include: that terminal receives the second signal that access network equipment is sent partially, and second It is carried in signal inclined when the first moment value and signal；Or terminal receives the third signal and the 4th letter that access network equipment is sent Number, the first moment value is carried in third signal, is carried in fourth signal inclined when signal.In this way, can make for the first moment Inclined transfer mode is more flexible when value and signal.

With reference to first aspect with above-mentioned possible implementation, in alternatively possible implementation, terminal is connect It partially include: that terminal receives the 5th signal and the 6th that access network equipment is sent when the first moment value and signal that log equipment is sent Signal, when carrying signal in the 5th signal partially in Δ TA, when carrying the first moment value and signal in the 6th signal partially in Δ t；Alternatively, terminal receives the 7th signal, the 8th signal and the 9th signal that access network equipment is sent, carried in the 7th signal When having a signal partially in Δ TA, when carrying signal in the 8th signal partially in Δ t, carried for the first moment in the 9th signal Value.In this way, the transfer mode of the first moment value, Δ TA and Δ t can be made more flexible.

With reference to first aspect with above-mentioned possible implementation, in alternatively possible implementation, the 5th signal or 7th signal is timing advance order (Timing Advance Command).In this way, can be multiplexed in the prior art Timing Advance Command Transfer Parameters, do not need to increase new signaling, to realize that clock is synchronous.

It is stored in terminal in alternatively possible implementation with above-mentioned possible implementation with reference to first aspect There is timing advance TA, inclined when terminal is according to the second moment value, the first moment value and signal, calculating clock jitter includes: terminal root According to inclined and TA when the second moment value, the first moment value, signal, clock jitter is calculated.In this way, when terminal side maintenance has TA, also Clock jitter can be calculated in conjunction with timing advance TA.

With reference to first aspect with above-mentioned possible implementation, in alternatively possible implementation, in the first signal Request mark is carried, request mark is inclined when requesting the first moment value and signal to access network equipment for terminal.In this way, terminal The first signal for carrying the request and identifying can be sent to access network equipment when needing to carry out clock synchronization.

Second aspect, the embodiment of the present application provides a kind of clock jitter calculation method, this method comprises: access network equipment connects Receive the first signal that terminal is sent.Then, it is inclined when access network equipment sends the first moment value and signal to terminal.Wherein, first Inclined Δ t, the absolute value of Δ t are small when partially including residual at the time of moment value indicates that access network equipment receives the first signal, when signal It is used for terminal partially when timing advance TA adjustment granularity, the first moment value and signal and calculates clock jitter.

In this way, after being sent to terminal partially when access network equipment is by the first moment value and signal, can make terminal according to When signal partially in, absolute value be less than TA adjustment granularity Δ t calculate clock jitter so that the calculating of clock jitter will not be limited In the size of TA adjustment granularity, so as to improve the computational accuracy of clock jitter, and then terminal is being adjusted according to clock jitter Corresponding first clock, so that can be improved same when the first clock second clock corresponding with access network equipment keeps synchronous Walk precision.

In conjunction with second aspect, in one possible implementation, when signal further includes timing advance adjusted value Δ TA partially, Δ TA is the integral multiple that TA adjusts granularity.In this way, clock jitter can be calculated according to Δ TA and Δ t.

In conjunction with second aspect and above-mentioned possible implementation, in alternatively possible implementation, access network equipment The first moment value is sent to terminal and when signal includes: that access network equipment to terminal sends second signal partially, is taken in second signal It is inclined with the first moment value and when signal；Alternatively, access network equipment sends third signal and fourth signal, third signal to terminal In carry the first moment value, carried in fourth signal inclined when signal.In this way, inclined when can make the first moment value and signal Transfer mode it is more flexible.

In conjunction with second aspect and above-mentioned possible implementation, in alternatively possible implementation, access network equipment The first moment value is sent to terminal and when signal includes: that access network equipment to terminal sends the 5th signal and the 6th signal partially, the When carrying signal in five signals partially in Δ TA, when carrying the first moment value and signal in the 6th signal partially in Δ t；Or Person, access network equipment send the 7th signal, the 8th signal and the 9th signal to terminal, when carrying signal in the 7th signal partially in Δ TA, when carrying signal in the 8th signal partially in Δ t, carry the first moment value in the 9th signal.In this way, can make The transfer mode for obtaining the first moment value, Δ TA and Δ t is more flexible.

In conjunction with second aspect and above-mentioned possible implementation, in alternatively possible implementation, the 5th signal or 7th signal is Timing Advance Command.In this way, Timing Advance in the prior art can be multiplexed Command Transfer Parameters, to realize that clock is synchronous.

In conjunction with second aspect and above-mentioned possible implementation, in alternatively possible implementation, the first signal is Lead code Preamble sequence.In this way, can realize that clock is synchronous by random access procedure.

In conjunction with second aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Request mark is carried, request mark is inclined when requesting the first moment value and signal to access network equipment for terminal.In this way, access Net equipment can execute Clock Synchronization Procedure when terminal needs to carry out clock synchronization.

The third aspect, the embodiment of the present application provide a kind of clock adjusting method, this method comprises: terminal is to access network equipment Send the first signal.Then, terminal receives the first moment value and propagation delay time that access network equipment is sent.Wherein, the first moment At the time of value instruction access network equipment receives the first signal, according to calculating acquisition when signal partially, when signal includes propagation delay time partially The absolute value of inclined Δ t when residual, Δ t are less than timing advance TA and adjust granularity.Later, when terminal is according to the first moment value, transmission Prolong and the second moment value, calculating clock jitter.Wherein, at the time of the second moment value instruction terminal sends the first signal, clock is inclined Difference is the time difference in terminal between the first clock configured and the second clock configured in access network equipment.In turn, terminal The first clock is adjusted according to clock jitter.

In this way, terminal is to be less than the Δ t that TA adjusts granularity according to its absolute value from the received propagation delay time of access network equipment Calculating acquisition can make the calculating of clock jitter be not limited by TA when terminal calculates clock jitter according to propagation delay time The size of granularity is adjusted, thus the computational accuracy of clock jitter can be improved, and then is corresponding adjusting terminal according to clock jitter The first clock so that can be improved when corresponding with the access network equipment second clock of the first clock keeps synchronous and synchronize essence Degree.

In conjunction with the third aspect, in one possible implementation, when signal further includes timing advance adjusted value Δ TA partially, Δ TA is the integral multiple that TA adjusts granularity.In this way, clock jitter can be calculated according to Δ TA and Δ t.

In conjunction with the third aspect and above-mentioned possible implementation, in alternatively possible implementation, the first signal is Lead code Preamble sequence, this method further include: the initial value of TA is arranged according to Δ TA for terminal.In this way, can be by random Access procedure realizes that clock is synchronous.

It is stored in terminal in alternatively possible implementation in conjunction with the third aspect and above-mentioned possible implementation There are timing advance TA, this method further include: terminal adjusts TA according to Δ TA.It, can be in this way, while realizing that clock is synchronous Update TA.

In conjunction with the third aspect and above-mentioned possible implementation, in alternatively possible implementation, this method is also wrapped Include: terminal receives to be taken in Timing Advance Command, the Timing Advance Command that access network equipment is sent With Δ TA.In this way, Timing Advance Command Transfer Parameters in the prior art can be multiplexed, to realize that clock is same Step.

In conjunction with the third aspect and above-mentioned possible implementation, in alternatively possible implementation, terminal is connect The first moment value and propagation delay time that log equipment is sent include: that terminal receives the Timing Advance that access network equipment is sent The first moment value, propagation delay time and Δ TA are carried in Command, Timing Advance Command.In this way, can be same Multiple parameters are transmitted in one signal, to reduce interactive signaling item number.

It is stored in terminal in alternatively possible implementation in conjunction with the third aspect and above-mentioned possible implementation There is timing advance TA, before the first moment value and propagation delay time that terminal receives that access network equipment is sent, this method further include: TA is sent to access network equipment by terminal, and TA calculates propagation delay time for access network equipment.In this way, can be combined with timing advance TA calculates clock jitter.

It is stored in terminal in alternatively possible implementation in conjunction with the third aspect and above-mentioned possible implementation There is timing advance TA, carries TA in the first signal.In this way, by carrying TA in the first signal, it is possible to reduce interactive letter Enable item number.

In conjunction with the third aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Request mark is carried, request mark requests the first moment value and propagation delay time to access network equipment for terminal.In this way, terminal The first signal for carrying the request and identifying can be sent to access network equipment when needing to carry out clock synchronization.

Fourth aspect, the embodiment of the present application provides a kind of clock jitter calculation method, this method comprises: access network equipment connects Receive the first signal that terminal is sent.Then, access network equipment according to signal when calculate propagation delay time partially, when signal includes residual partially When inclined Δ t, the absolute value of Δ t is less than timing advance TA and adjusts granularity.Later, access network equipment is by propagation delay time and the first moment Value is sent to terminal.Wherein, at the time of the first moment value is used to indicate access network equipment and receives the first signal, propagation delay time and the One moment value calculates clock jitter for terminal.

In this way, the Δ t that access network equipment can be less than TA adjustment granularity according to its absolute value calculates propagation delay time, to make The calculating for obtaining propagation delay time is not only restricted to the size of TA adjustment granularity, and propagation delay time is being sent to terminal to calculate clock jitter When, the calculating of clock jitter can be made to be not limited by the size of TA adjustment granularity, thus the meter of clock jitter can be improved Precision is calculated, and then corresponding first clock of terminal is being adjusted according to clock jitter, so that the first clock and access network equipment pair When the second clock answered keeps synchronous, synchronization accuracy can be improved.

In conjunction with fourth aspect, in one possible implementation, when signal further includes timing advance adjusted value Δ TA partially, Δ TA is the integral multiple that TA adjusts granularity.In this way, clock jitter can be calculated according to Δ TA and Δ t.

In conjunction with fourth aspect and above-mentioned possible implementation, in alternatively possible implementation, this method is also wrapped Include: access network equipment sends in Timing Advance Command, Timing Advance Command to terminal and carries ΔTA.In this way, Timing Advance Command Transfer Parameters in the prior art can be multiplexed, to realize that clock is synchronous.

In conjunction with fourth aspect and above-mentioned possible implementation, in alternatively possible implementation, access network equipment Sending the first moment value and propagation delay time to terminal includes: that access network equipment to terminal sends Timing Advance The first moment value, propagation delay time and Δ TA are carried in Command, Timing Advance Command.In this way, can be same Multiple parameters are transmitted in one signal, to reduce interactive signaling item number.

In conjunction with fourth aspect and above-mentioned possible implementation, in alternatively possible implementation, set in access net It is standby according to before calculating propagation delay time partially when signal, this method further include: access network equipment receives the timing advance that terminal is sent TA.Access network equipment includes: access network equipment according to calculating and transmit with TA partially when signal according to propagation delay time is calculated when signal partially Time delay.In this way, can be combined with timing advance TA calculates clock jitter.

In conjunction with fourth aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Carry timing advance TA, access network equipment according to calculated partially when signal propagation delay time include: access network equipment according to signal when Partially and TA calculates propagation delay time.In this way, by carrying TA in the first signal, it is possible to reduce interactive signaling item number.

In conjunction with fourth aspect and above-mentioned possible implementation, in alternatively possible implementation, the first signal is Lead code Preamble sequence.In this way, can realize that clock is synchronous by random access procedure.

5th aspect, the embodiment of the present application provides a kind of clock adjusting method, this method comprises: terminal is to access network equipment Send the first signal and the second moment value.Wherein, at the time of the second moment value instruction terminal sends the first signal.Then, terminal Receive the clock jitter that access network equipment is sent.Wherein, clock jitter is the first clock and access network equipment configured in terminal Time difference between the second clock of middle configuration is counted partially when clock jitter is according to the second moment value, the first moment value and signal It calculates and obtains, inclined Δ t, Δ t when partially including residual at the time of the first moment value indicates that access network equipment receives the first signal, when signal Absolute value be less than timing advance TA adjust granularity.In turn, terminal adjusts the first clock according to clock jitter.

In this way, terminal can receive the clock jitter of access network equipment transmission, which is small according to its absolute value Acquisition is calculated in the Δ t of TA adjustment granularity, so that the calculating of clock jitter is not limited by TA adjustment granularity Size, it is thus possible to improve the computational accuracy of clock jitter, and then terminal is adjusting terminal corresponding first according to clock jitter Clock, so that can be improved synchronization accuracy when the first clock second clock corresponding with access network equipment keeps synchronous.

In conjunction with the 5th aspect, in one possible implementation, when signal further includes timing advance adjusted value Δ TA partially, Δ TA is the integral multiple that TA adjusts granularity.In this way, clock jitter can be calculated according to Δ TA and Δ t.

It is stored in terminal in alternatively possible implementation in conjunction with the 5th aspect and above-mentioned possible implementation There are timing advance TA, this method further include: terminal adjusts TA according to Δ TA.It, can be in this way, while realizing that clock is synchronous Update TA.

In conjunction with the 5th aspect and above-mentioned possible implementation, in alternatively possible implementation, this method is also wrapped Include: terminal receives to be taken in Timing Advance Command, the Timing Advance Command that access network equipment is sent With Δ TA.In this way, Timing Advance Command Transfer Parameters in the prior art can be multiplexed, to realize that clock is same Step.

In conjunction with the 5th aspect and above-mentioned possible implementation, in alternatively possible implementation, terminal is connect The clock jitter that log equipment is sent includes: that terminal receives the Timing Advance Command that access network equipment is sent, Clock jitter and Δ TA are carried in Timing Advance Command.In this way, can be transmitted in the same signal multiple Parameter, to reduce interactive signaling item number.

It is stored in terminal in alternatively possible implementation in conjunction with the 5th aspect and above-mentioned possible implementation There is timing advance TA, before the clock jitter that terminal receives that access network equipment is sent, this method further include: terminal sends TA To access network equipment, TA calculates clock jitter for access network equipment.In this way, it is inclined to can be combined with timing advance TA calculating clock Difference.

It is stored in terminal in alternatively possible implementation in conjunction with the 5th aspect and above-mentioned possible implementation There is timing advance TA, carries TA in the first signal.In this way, by carrying TA in the first signal, it is possible to reduce interactive letter Enable item number.

In conjunction with the 5th aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Carry the second moment value.In this way, by carrying the second moment value in the first signal, it is possible to reduce interactive signaling item number.

In conjunction with the 5th aspect and above-mentioned possible implementation, in alternatively possible implementation, terminal is to access Net equipment sends the second moment value, and to include: terminal send second signal to access network equipment, when carrying second in second signal Quarter value.In this way, the transmitting of the second moment value can be made more flexible.

In conjunction with the 5th aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Request mark is carried, request mark requests clock jitter to access network equipment for terminal.In this way, terminal can need into When row clock is synchronous, the first signal for carrying the request and identifying is sent to access network equipment.

6th aspect, the embodiment of the present application provide a kind of clock adjusting method, this method comprises: access network equipment receives eventually Hold the first signal sent and the second moment value.Wherein, at the time of the second moment value instruction terminal sends the first signal.Then, Access network equipment calculates clock jitter according to inclined and the first moment value when the second moment value, signal.Wherein, the first moment value refers to At the time of showing that access network equipment receives the first signal, clock jitter is to match in the first clock and access network equipment configured in terminal The time difference between second clock set, inclined Δ t when partially including residual when signal, the absolute value of Δ t are less than timing advance TA Granularity is adjusted, clock jitter adjusts the first clock for terminal.Then, clock jitter is sent to terminal by access network equipment.

In this way, the Δ t that access network equipment can be less than TA adjustment granularity according to its absolute value calculates clock jitter, so as to So that the calculating of clock jitter is not limited by the size of TA adjustment granularity, it is thus possible to improve the calculating essence of clock jitter Degree, and then clock jitter is sent to terminal, so that terminal adjusts corresponding first clock of terminal according to clock jitter, so that When first clock second clock corresponding with access network equipment keeps synchronous, synchronization accuracy can be improved.

In conjunction with the 6th aspect, in one possible implementation, when signal further includes timing advance TA adjusted value Δ partially TA, Δ TA are the integral multiple that TA adjusts granularity.In this way, clock jitter can be calculated according to Δ TA and Δ t.

In conjunction with the 6th aspect and above-mentioned possible implementation, in alternatively possible implementation, this method is also wrapped Include: access network equipment sends in Timing Advance Command, Timing Advance Command to terminal and carries ΔTA.In this way, Timing Advance Command Transfer Parameters in the prior art can be multiplexed, to realize that clock is synchronous.

In conjunction with the 6th aspect and above-mentioned possible implementation, in alternatively possible implementation, access network equipment Including: access network equipment to terminal tranmitting data register deviation sends Timing Advance Command, Timing to terminal Clock jitter and Δ TA are carried in Advance Command.In this way, multiple parameters can be transmitted in the same signal, from And reduce the signaling item number of interaction.

In conjunction with the 6th aspect and above-mentioned possible implementation, in alternatively possible implementation, set in access net It is inclined when for according to the first moment value, the second moment value and signal, before calculating clock jitter, method further include: access network equipment Receive the timing advance TA that terminal is sent.It is inclined when access network equipment is according to the first moment value, the second moment value and signal, when calculating Clock deviation includes: access network equipment according to inclined and TA when the first moment value, the second moment value, signal, calculates clock jitter.This Sample can be combined with timing advance TA and calculate clock jitter.

In conjunction with the 6th aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Timing advance TA is carried, it is inclined when access network equipment is according to the first moment value, the second moment value and signal, calculate clock jitter packet Include: access network equipment calculates clock jitter according to inclined and TA when the first moment value, the second moment value, signal.In this way, by TA is carried in first signal, it is possible to reduce interactive signaling item number.

In conjunction with the 6th aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Carry the second moment value.In this way, by carrying the second moment value in the first signal, it is possible to reduce interactive signaling item number.

In conjunction with the 6th aspect and above-mentioned possible implementation, in alternatively possible implementation, access network equipment Receiving the second moment value that terminal is sent includes: that access network equipment receives the second signal that terminal is sent, and is carried in second signal There is the second moment value.In this way, the transmitting of the second moment value can be made more flexible.

7th aspect, the embodiment of the present application provide a kind of terminal, comprising: transmission unit, for being sent out to access network equipment Send the first signal；Receiving unit, it is inclined when for receiving the first moment value and signal of access network equipment transmission.Wherein, first when Inclined Δ t, the absolute value of Δ t are small when partially including residual at the time of quarter value indicates that access network equipment receives the first signal, when signal Granularity is adjusted in timing advance TA.Computing unit, for according to when the first moment value, signal partially and the second moment value, when calculating Clock deviation.Wherein, at the time of the second moment value instruction terminal sends the first signal, when clock jitter is first configured in terminal The time difference between second clock configured in clock and access network equipment.Adjustment unit, for according to clock jitter adjustment the One clock.

In conjunction with the 7th aspect, in one possible implementation, when signal further includes timing advance TA adjusted value Δ partially TA, Δ TA are the integral multiple that TA adjusts granularity.

In conjunction with the 7th aspect and above-mentioned possible implementation, in alternatively possible implementation, which is also wrapped It includes: storage unit, for storing timing advance TA.Adjustment unit is also used to, and adjusts TA according to Δ TA.

In conjunction with the 7th aspect and above-mentioned possible implementation, in alternatively possible implementation, receiving unit tool Body is used for: being received the second signal that access network equipment is sent, is carried in second signal inclined when the first moment value and signal；Or Person receives third signal and fourth signal that access network equipment is sent, carries the first moment value, fourth signal in third signal In carry it is inclined when signal.

In conjunction with the 7th aspect and above-mentioned possible implementation, in alternatively possible implementation, receiving unit tool Body is used for: receiving the 5th signal and the 6th signal that access network equipment is sent, wherein when carrying signal in the 5th signal partially in Δ TA, when carrying the first moment value and signal in the 6th signal partially in Δ t.Alternatively, receiving what access network equipment was sent 7th signal, the 8th signal and the 9th signal, wherein when carrying signal in the 7th signal partially in Δ TA, in the 8th signal When carrying signal partially in Δ t, carry the first moment value in the 9th signal.

In conjunction with the 7th aspect and above-mentioned possible implementation, in alternatively possible implementation, the 5th signal or 7th signal is Timing Advance Command.

In conjunction with the 7th aspect and above-mentioned possible implementation, in alternatively possible implementation, terminal includes depositing Storage unit is stored with timing advance TA in storage unit, and computing unit is specifically used for: according to the second moment value, the first moment value, Inclined and TA when signal, calculates clock jitter.

In conjunction with the 7th aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Request mark is carried, request mark is inclined when requesting the first moment value and signal to access network equipment for terminal.

Eighth aspect, the embodiment of the present application provide a kind of access network equipment, comprising: receiving unit, for receiving terminal The first signal sent；Transmission unit, inclined when for sending the first moment value and signal to terminal, the first moment value instruction access Inclined Δ t, the absolute value of Δ t are less than timing advance TA tune when partially including residual at the time of net equipment receives the first signal, when signal Whole grain degree, when the first moment value and signal, are used for terminal partially and calculate clock jitter.

In conjunction with eighth aspect, in one possible implementation, when signal further includes timing advance adjusted value Δ TA partially, Δ TA is the integral multiple that TA adjusts granularity.

In conjunction with eighth aspect and above-mentioned possible implementation, in alternatively possible implementation, transmission unit tool Body is used for: being sent second signal to terminal, is carried in second signal inclined when the first moment value and signal；Alternatively, being sent out to terminal Third signal and fourth signal are sent, the first moment value is carried in third signal, is carried in fourth signal inclined when signal.

In conjunction with eighth aspect and above-mentioned possible implementation, in alternatively possible implementation, transmission unit tool Body is used for: send the 5th signal and the 6th signal to terminal, when carrying signal in the 5th signal partially in Δ TA, the 6th signal In when carrying the first moment value and signal partially in Δ t；Alternatively, sending the 7th signal, the 8th signal and the 9th letter to terminal Number, when carrying signal in the 7th signal partially in Δ TA, when carrying signal in the 8th signal partially in Δ t, the 9th signal In carry the first moment value.

In conjunction with eighth aspect and above-mentioned possible implementation, in alternatively possible implementation, the 5th signal or 7th signal is Timing Advance Command.

In conjunction with eighth aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Request mark is carried, request mark is inclined when requesting the first moment value and signal to access network equipment for terminal.

9th aspect, the embodiment of the present application provide a kind of terminal, comprising: transmission unit, for being sent out to access network equipment Send the first signal.Receiving unit, for receiving the first moment value and propagation delay time of access network equipment transmission.Wherein, first when At the time of quarter value indicates that access network equipment receives the first signal, propagation delay time according to calculating acquisition when signal partially, wrap partially by when signal Inclined Δ t when residual is included, the absolute value of Δ t is less than timing advance TA and adjusts granularity.Computing unit, for according to the first moment value, Propagation delay time and the second moment value calculate clock jitter.Wherein, at the time of the second moment value instruction terminal sends the first signal, Clock jitter is the time difference in terminal between the first clock configured and the second clock configured in access network equipment.Adjustment Unit, for adjusting the first clock according to clock jitter.

In conjunction with the 9th aspect, in one possible implementation, when signal further includes timing advance adjusted value Δ TA partially, Δ TA is the integral multiple that TA adjusts granularity.

In conjunction with the 9th aspect and above-mentioned possible implementation, in alternatively possible implementation, the first signal is Lead code Preamble sequence, the terminal further include setting unit, and the initial value of TA is arranged according to Δ TA for terminal.

In conjunction with the 9th aspect and above-mentioned possible implementation, in alternatively possible implementation, terminal further includes Storage unit is stored with timing advance TA for storing in terminal, adjustment unit is also used to: adjusting TA according to Δ TA.

In conjunction with the 9th aspect and above-mentioned possible implementation, in alternatively possible implementation, receiving unit is also It is carried in Timing Advance Command, Timing Advance Command for receiving access network equipment transmission ΔTA。

In conjunction with the 9th aspect and above-mentioned possible implementation, in alternatively possible implementation, receiving unit tool Body is used for: being received and is taken in Timing Advance Command, the Timing Advance Command that access network equipment is sent With the first moment value, propagation delay time and Δ TA.

In conjunction with the 9th aspect and above-mentioned possible implementation, in alternatively possible implementation, terminal includes depositing Storage unit is stored with timing advance TA in storage unit, receiving unit receive the first moment value that access network equipment is sent and Before propagation delay time, transmission unit is also used to: TA being sent to access network equipment, when which calculates transmission for access network equipment Prolong.

It is stored in terminal in alternatively possible implementation in conjunction with the 9th aspect and above-mentioned possible implementation There is timing advance TA, carries TA in the first signal.

In conjunction with the 9th aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Request mark is carried, request mark requests the first moment value and propagation delay time to access network equipment for terminal.

Tenth aspect, the embodiment of the present application provide a kind of access network equipment, comprising: receiving unit, for receiving terminal The first signal sent.Computing unit, calculates propagation delay time partially when for according to signal, when signal inclined Δ t when partially including residual, The absolute value of Δ t is less than timing advance TA and adjusts granularity.Transmission unit, for propagation delay time and the first moment value to be sent to end End.Wherein, at the time of the first moment value is used to indicate access network equipment the first signal of reception, propagation delay time and the first moment value are used Clock jitter is calculated in terminal.

In conjunction with the tenth aspect, in one possible implementation, when signal further includes timing advance adjusted value Δ TA partially, Δ TA is the integral multiple that TA adjusts granularity.

In conjunction with the tenth aspect and above-mentioned possible implementation, in alternatively possible implementation, transmission unit is also For: it is sent in Timing Advance Command, Timing Advance Command to terminal and carries Δ TA.

In conjunction with the tenth aspect and above-mentioned possible implementation, in alternatively possible implementation, transmission unit tool Body is used for: when carrying first into terminal transmission Timing Advance Command, Timing Advance Command Quarter value, propagation delay time and Δ TA.

In conjunction with the tenth aspect and above-mentioned possible implementation, in alternatively possible implementation, in computing unit According to before calculating propagation delay time partially when signal, receiving unit is also used to: receiving the timing advance TA that terminal is sent.Computing unit It is specifically used for: propagation delay time is calculated according to inclined and TA when signal.

In conjunction with the tenth aspect and above-mentioned possible implementation, in alternatively possible implementation, in the first signal Timing advance TA is carried, computing unit is specifically used for: propagation delay time is calculated according to inclined and TA when signal.

In conjunction with the tenth aspect and above-mentioned possible implementation, in alternatively possible implementation, the first signal is Lead code Preamble sequence.

Tenth on the one hand, and the embodiment of the present application provides a kind of terminal, comprising: transmission unit is used for access network equipment The first signal and the second moment value are sent, at the time of the second moment value instruction terminal sends the first signal.Receiving unit, for connecing Receive the clock jitter that access network equipment is sent.Wherein, clock jitter is in the first clock and access network equipment configured in terminal Time difference between the second clock of configuration calculates partially when clock jitter is according to the second moment value, the first moment value and signal It obtains, inclined Δ t when partially including residual at the time of the first moment value indicates that access network equipment receives the first signal, when signal, Δ t's Absolute value is less than timing advance TA and adjusts granularity.Adjustment unit, for adjusting the first clock according to clock jitter.

It on the one hand in conjunction with the tenth, in one possible implementation, partially further include timing advance adjusted value Δ when signal TA, Δ TA are the integral multiple that TA adjusts granularity.

In conjunction with the tenth one side and above-mentioned possible implementation, in alternatively possible implementation, the terminal is also It include: storage unit, for storing timing advance TA；Adjustment unit is also used to, and adjusts TA according to Δ TA.

In conjunction with the tenth one side and above-mentioned possible implementation, in alternatively possible implementation, receiving unit It is also used to: receiving and taken in Timing Advance Command, the Timing Advance Command that access network equipment is sent With Δ TA.

In conjunction with the tenth one side and above-mentioned possible implementation, in alternatively possible implementation, receiving unit It is specifically used for: receives in Timing Advance Command, the Timing Advance Command that access network equipment is sent Carry clock jitter and Δ TA.

In conjunction with the tenth one side and above-mentioned possible implementation, in alternatively possible implementation, terminal includes Storage unit is stored with timing advance TA in storage unit, receiving unit receive clock jitter that access network equipment is sent it Before, transmission unit is also used to: TA being sent to access network equipment, TA calculates clock jitter for access network equipment.

In conjunction with the tenth one side and above-mentioned possible implementation, in alternatively possible implementation, terminal includes Storage unit is stored with timing advance TA in storage unit, carries TA in the first signal.

In conjunction with the tenth one side and above-mentioned possible implementation, in alternatively possible implementation, the first signal In carry the second moment value.

In conjunction with the tenth one side and above-mentioned possible implementation, in alternatively possible implementation, transmission unit It is specifically used for: sends second signal to access network equipment, carry the second moment value in second signal.

In conjunction with the tenth one side and above-mentioned possible implementation, in alternatively possible implementation, the first signal In carry request mark, request mark for terminal to access network equipment request clock jitter.

12nd aspect, the embodiment of the present application provide a kind of access network equipment, comprising: receiving unit, for receiving end The first signal sent and the second moment value are held, at the time of the second moment value instruction terminal sends the first signal.Computing unit is used Inclined and the first moment value when according to the second moment value, signal, calculates clock jitter.Wherein, the first moment value instruction access net At the time of equipment receives the first signal, clock jitter is second configured in the first clock and access network equipment configured in terminal Time difference between clock, inclined Δ t when partially including residual when signal, the absolute value of Δ t are less than timing advance TA and adjust granularity, Clock jitter adjusts the first clock for terminal.Transmission unit, for clock jitter to be sent to terminal.

In conjunction with the 12nd aspect, in one possible implementation, when signal further includes timing advance TA adjusted value partially Δ TA, Δ TA are the integral multiple that TA adjusts granularity.

In conjunction with the 12nd aspect and above-mentioned possible implementation, in alternatively possible implementation, transmission unit It is also used to: being sent in Timing Advance Command, Timing Advance Command to terminal and carry Δ TA.

In conjunction with the 12nd aspect and above-mentioned possible implementation, in alternatively possible implementation, transmission unit It is specifically used for: is sent in Timing Advance Command, Timing Advance Command to terminal and carry clock Deviation and Δ TA.

It is single calculating in alternatively possible implementation in conjunction with the 12nd aspect and above-mentioned possible implementation Inclined when member is according to the first moment value, the second moment value and signal, before calculating clock jitter, receiving unit is also used to: being received eventually Hold the timing advance TA sent.Computing unit is specifically used for: according to inclined and TA when the first moment value, the second moment value, signal, meter Calculate clock jitter.

In conjunction with the 12nd aspect and above-mentioned possible implementation, in alternatively possible implementation, the first signal In carry timing advance TA, computing unit is specifically used for: according to when the first moment value, the second moment value, signal partially and TA, meter Calculate clock jitter.

In conjunction with the 12nd aspect and above-mentioned possible implementation, in alternatively possible implementation, the first signal In carry the second moment value.

In conjunction with the 12nd aspect and above-mentioned possible implementation, in alternatively possible implementation, receiving unit It is specifically used for: receives the second signal that terminal is sent, carry the second moment value in second signal.

13rd aspect, the embodiment of the present application provide a kind of terminal, including at least one processor, memory, bus And communication interface.For storing computer executed instructions, at least one processor is connect with memory by bus memory, when When terminal operating, at least one processor executes the computer executed instructions of memory storage, so that terminal executes above-mentioned first Clock adjusting method in aspect, the third aspect or the 5th any one of aspect.

Fourteenth aspect, the embodiment of the present application provide a kind of access network equipment, including at least one processor, storage Device, bus and communication interface.For memory for storing computer executed instructions, at least one processor and memory pass through bus Connection, when access network equipment operation, at least one processor executes the computer executed instructions of memory storage, so that access Net equipment executes the clock adjusting method in above-mentioned second aspect, fourth aspect or the 6th any one of aspect.

15th aspect, the embodiment of the present application provides a kind of computer readable storage medium, for being stored as above-mentioned end End computer software instructions used allow computer to execute above-mentioned first aspect, the when run on a computer Clock adjusting method in three aspects or the 5th any one of aspect.

16th aspect, the embodiment of the present application provides a kind of computer readable storage medium, for being stored as above-mentioned connect Computer software instructions used in log equipment allow computer to execute above-mentioned second when run on a computer Clock adjustment or clock jitter calculation method in aspect, fourth aspect or the 6th any one of aspect.

17th aspect, the embodiment of the present application provides a kind of computer program product comprising instruction, when it is being calculated When running on machine, computer is allowed to execute the clock tune in above-mentioned first aspect, the third aspect or the 5th any one of aspect Adjusting method.

18th aspect, the embodiment of the present application provides a kind of computer program product comprising instruction, when it is being calculated When running on machine, computer is allowed to execute the clock tune in above-mentioned second aspect, fourth aspect or the 6th any one of aspect Adjusting method.

19th aspect, the embodiment of the present application provide a kind of system, including above-mentioned 7th aspect, the 9th aspect or the tenth Terminal and above-mentioned eighth aspect, the tenth aspect in any one of one side or the access net in the 12nd any one of aspect are set It is standby.

Detailed description of the invention

Fig. 1 is a kind of network architecture schematic diagram provided by the embodiments of the present application；

Fig. 2 is a kind of structural schematic diagram of access network equipment provided by the embodiments of the present application；

Fig. 3 is a kind of structural schematic diagram of mobile phone terminal provided by the embodiments of the present application；

Fig. 4 is a kind of clock adjusting method flow chart provided by the embodiments of the present application；

Fig. 5 is another clock adjusting method flow chart provided by the embodiments of the present application；

Fig. 6 is another clock adjusting method flow chart provided by the embodiments of the present application；

Fig. 7 is another clock adjusting method flow chart provided by the embodiments of the present application；

Fig. 8 is another clock adjusting method flow chart provided by the embodiments of the present application；

Fig. 9 is another clock adjusting method flow chart provided by the embodiments of the present application；

Figure 10 a is another clock adjusting method flow chart provided by the embodiments of the present application；

Figure 10 b is another clock adjusting method flow chart provided by the embodiments of the present application；

Figure 11 a is another clock adjusting method flow chart provided by the embodiments of the present application；

Figure 11 b is another clock adjusting method flow chart provided by the embodiments of the present application；

Figure 12 is another clock adjusting method flow chart provided by the embodiments of the present application；

Figure 13 is another clock adjusting method flow chart provided by the embodiments of the present application；

Figure 14 a is another clock adjusting method flow chart provided by the embodiments of the present application；

Figure 14 b is another clock adjusting method flow chart provided by the embodiments of the present application；

Figure 15 is another clock adjusting method flow chart provided by the embodiments of the present application；

Figure 16 is a kind of structural schematic diagram of terminal provided by the embodiments of the present application；

Figure 17 is the structural schematic diagram of another terminal provided by the embodiments of the present application；

Figure 18 is a kind of structural schematic diagram of access network equipment provided by the embodiments of the present application；

Figure 19 is the structural schematic diagram of another access network equipment provided by the embodiments of the present application；

Figure 20 is the structural schematic diagram of a kind of terminal provided by the embodiments of the present application or access network equipment.

Specific embodiment

In order to make it easy to understand, it is exemplary give part it is for reference with the explanation of the embodiment of the present application related notion.Such as Shown in lower:

Propagation delay time: the time delay of eating dishes without rice or wine between terminal and access network equipment, it is related with propagation distance.

Timing advance TA: since there are certain physical distances between terminal and access network equipment, when terminal and access net are set When standby communication, the time delay of signal transmitting will cause, if taken no action to, time delay will lead to the terminal that access network equipment receives and exist The message sent on this time slot, it is Chong Die with another message that access network equipment is received in its next time slot, so as to cause nothing Method is correctly decoded information.In order to eliminate the return propagation delay of terminal and access network equipment, uplink interference is reduced, guarantees that uplink passes Defeated orthogonality, so that each terminal is not interfere with each other in uplink, terminal can shift to an earlier date regular hour transmission, the time that should shift to an earlier date As TA, unit can be μ s.

TA adjusts granularity: TA is adjusted based on a certain amount unit, which refers to that TA can change Minimum unit.For example, the adjustment granularity of TA is 16T in long term evolution (long term evolution, LTE) system_S, T therein_SFor the sampling period of equipment.

Inclined when signal: when a connection is established, the uplink signal that access network equipment can be sent according to terminal is constantly surveyed The time offset that itself pulse slot is measured between the terminal time slot that receives, this offset is properly termed as inclined when signal.TA Distance dependent between terminal and access network equipment, terminal on the move change at a distance from access network equipment, it is also possible to Terminal is caused to switch between different community, so needing access network equipment according to the TA for constantly correcting terminal when signal partially. When the signal that access network equipment measures, inclined absolute value is less than TA adjustment granularity, inclined Δ when partially may include residual when signal t；When the absolute value that access network equipment measures is greater than TA adjustment granularity, when signal may include TA adjusted value Δ TA and residual partially When inclined Δ t.

TA adjusted value Δ TA: the quantity for the TA adjustment granularity for including partially when signal, Δ TA are the integral multiples of TA adjustment granularity. In TA renewal process, the value range of Δ TA is 0-63.Δ TA can be sent to terminal by access network equipment, to correct TA. If revised TA is TA_new, the TA before modification just is TA_old, then the relationship of the two and Δ TA value can be TA_new=TA_old+ (Δ TA-31) × TA adjusts granularity.

Inclined Δ t when residual: difference when signal partially with TA adjusted value Δ TA.

In the description of the embodiment of the present application, unless otherwise indicated, "/" indicate or the meaning, for example, A/B can indicate A Or B；"and/or" herein is only a kind of incidence relation for describing affiliated partner, indicates may exist three kinds of relationships, example Such as, A and/or B can be indicated: individualism A, exist simultaneously A and B, these three situations of individualism B.In addition, in the application In the description of embodiment, " multiple " refer to two or more.

Technical solution provided by the embodiments of the present application can be applied to various mobile communication system, such as third generation movement is led to Letter technology (3rd generation mobile communication, 3G) communication system, fourth generation mobile communication technology (the 4th generation mobile communication, 4G) communication system and future evolution network, such as the 5th Dai Yidong The communication technology (5th-generation, 5G) communication system.For example, LTE system, relevant cellular system of 3G etc. and other Such communication system.In particular, it can be applied in the networking of 5G super-intensive (ultra dense network, UDN) system.It needs It is noted that may include Machine To Machine (machine to machine, M2M), D2M, macro micro- communication, increasing in 5G standard Strong type mobile Internet (enhance mobile broadband, eMBB), ultrahigh reliability communicate (ultra with ultralow time delay Reliable&low latency communication, uRLLC) and magnanimity Internet of Things Network Communication (massive machine Type communication, mMTC) etc. scenes, these scenes can include but is not limited to: access network equipment with access net set Communication scenes between standby, the communication scenes between access network equipment and terminal, the communication scenes etc. between terminal and terminal.This The technical solution that application embodiment provides also can be applied to the access network equipment in 5G communication system and the communication between terminal, Or the communication between access network equipment and access network equipment, in the scenes such as communication between terminal and terminal.

Technical solution provided by the embodiments of the present application can be applied in system architecture as shown in Figure 1, the system architecture In may include access network equipment 100 and one or more terminals 200 for being connect with access network equipment 100.Terminal 200 with Carried out data transmission between access network equipment 100 according to timing advance TA, when being configured with a local in access network equipment 100 Clock is also configured with a local clock in terminal 200.

Wherein, access network equipment 100 can be relay station or access point etc..Access network equipment 100 can be global movement Communication system (global system for mobile communication, GSM) or CDMA (code division Multiple access, CDMA) base transceiver station (base transceiver station, BTS) in network, it can also To be the NB (NodeB) in wideband code division multiple access (wideband code division multiple access, WCDMA), It can also be the eNB or eNodeB (evolutional NodeB) in LTE.Access network equipment 100 can also be cloud wireless access Wireless controller under network (cloud radio access network, CRAN) scene.Access network equipment 100 can also be Public land mobile network (the public land mobile of the network equipment or the following evolution in the following 5G network Network, PLMN) in the network equipment etc..The network equipment in the following 5G network may include novel radio electricity base station (new Radio NodeB), next-generation base station (next generation NodeB, gNB) or transfer point (transmission Point) etc..

Terminal 200 can be user equipment (user equipment, UE), access terminal, UE unit, the station UE, movement station, Mobile station, remote station, remote terminal, mobile device, UE terminal, terminal, wireless telecom equipment, UE agency or UE device etc..It connects Entering terminal can be cellular phone, wireless phone, session initiation protocol (session initiation protocol, SIP) electricity It talks about, wireless local loop (wireless local loop, WLL) is stood, personal digital assistant (personal digital Assistant, PDA), the handheld device with wireless communication function, calculate equipment or be connected to radio modem its Its processing equipment, mobile unit, wearable device etc..

In one example, access network equipment 100 can be realized by structure as shown in Figure 2.As shown in Fig. 2, access Net equipment may include indoor baseband processing unit (building baseband unit, BBU) and far-end RF module The connection of (remote radio unit, RRU) and antenna-feeder system (i.e. antenna), BBU and RRU can according to need and dismantle use.It answers Note that access network equipment can also use other common hardware frameworks, and be not intended to be limited to figure during specific implementation Common hardware framework shown in 2.

By taking terminal 200 is mobile phone as an example, the common hardware framework of mobile phone is illustrated.As shown in figure 3, mobile phone can wrap It includes: radio frequency (radio frequency, RF) circuit 110, memory 120, other input equipments 130, display screen 140, sensor 150, the components such as voicefrequency circuit 160, I/O subsystem 170, processor 180 and power supply 190.Those skilled in the art can manage Solution, the structure of mobile phone shown in Fig. 3 do not constitute the restriction to mobile phone, may include more than diagram or less component, Perhaps certain components are combined and perhaps split certain components or different component layouts.It will be appreciated by those skilled in the art that aobvious Display screen 140 belongs to user interface (user interface, UI), and display screen 140 may include display panel 141 and touch panel 142.And mobile phone may include than illustrating more or less component.Although being not shown, mobile phone can also include camera, indigo plant The functional modules such as tooth module or device, details are not described herein.

Further, processor 180 respectively with RF circuit 110, memory 120, voicefrequency circuit 160, I/O subsystem 170, And power supply 190 is all connected with.I/O subsystem 170 connects with other input equipments 130, display screen 140, sensor 150 respectively It connects.Wherein, RF circuit 110 can be used for receiving and sending messages or communication process in, signal sends and receivees, and particularly, will access net After the downlink information of equipment receives, handled to processor 180.Memory 120 can be used for storing software program and module.Processing Device 180 is stored in the software program and module of memory 120 by operation, thereby executing mobile phone various function application and Data processing.Other input equipments 130 can be used for receiving the number or character information of input, and generates and set with the user of mobile phone It sets and the related key signals of function control inputs.Display screen 140 can be used for showing information input by user or be supplied to use The information at family and the various menus of mobile phone can also receive user's input.Sensor 150 can pass for optical sensor, movement Sensor or other sensors.Voicefrequency circuit 160 can provide the audio interface between user and mobile phone.I/O subsystem 170 is used to The external equipment of input and output is controlled, external equipment may include other equipment input controller, sensor controller, display control Device processed.Processor 180 is that the control centre of mobile phone is passed through using the various pieces of various interfaces and connection whole mobile phone Operation executes the software program and/or module being stored in memory 120, and calls the number being stored in memory 120 According to, execute mobile phone various functions and processing data, thus to mobile phone carry out integral monitoring.Power supply 190 (such as battery) is used for It powers to above-mentioned all parts, it is preferred that power supply can be logically contiguous by power-supply management system and processor 180, thus logical It crosses power-supply management system and realizes the functions such as management charging, electric discharge and power consumption.

Synchronization scheme in the prior art not can solve in framework as shown in Figure 1, access network equipment 100 and terminal 200 it Between stationary problem.Synchronization scheme in the prior art can solve same between access network equipment and other access network equipments Step problem, but propagation delay time is replaced by TA, the computational accuracy of clock jitter is limited to TA adjustment granularity, thus synchronization accuracy It is poor.For example, according to the synchronization scheme between access network equipment and access network equipment in the prior art is similar to, to solve The certainly stationary problem between access network equipment and terminal, then referring to fig. 4, it is assumed that in LTE system, terminal UE and access network equipment Propagation delay time between eNB is 35Ts, and terminal UE down-going synchronous is on the basis of the arrival time of downlink signal, the transmission of uplink signal On the basis of down-going synchronous, then signal is actually reached the propagation delay time that access network equipment eNB has 70Ts.Access network equipment eNB root It is inclined when according to uplink signal measuring signal, it determines and to terminal UE transmission timing lead TA.Since TA adjusts granularity in LTE system It is 16Ts, so the practical TA sent of access network equipment eNB is the integral multiple of 16Ts, optimal TA value is 64Ts.Terminal UE connects After receiving TA, uplink signal is sent in 64Ts in advance, but uplink signal is actually reached access network equipment eNB there are still the residence times Deviation delta t=6Ts.According to synchronization scheme in the prior art is similar to, propagation delay time is replaced by TA/2, then when transmitting The computational accuracy prolonged is limited to the size of TA adjustment granularity, so that the computational accuracy of clock jitter is also limited by TA adjustment grain The size of degree, thus synchronous error is larger.

Scheme provided by the embodiments of the present application can be less than inclined Δ t, meter when the residual of TA adjustment granularity according to its absolute value The clock jitter in framework as shown in Figure 1 between terminal and access network equipment is calculated, so as to adjust the clock of terminal side, thus can be solved The certainly stationary problem between terminal and access network equipment, and synchronization accuracy is higher.The embodiment of the present application is mentioned below with reference to attached drawing The scheme of confession is described in detail.

Referring to Fig. 5, the embodiment of the present application provides a kind of clock adjusting method, and this method may include:

501, terminal sends the first signal to access network equipment.

Wherein, the first signal can be existing uplink signal；It is also possible to a kind of new uplink signal.In a kind of possibility Implementation in, which can have shorter duration and wider frequency range, be conducive to improve in this way The accuracy that the signal arrival time calculates.

502, access network equipment sends the first moment value and signal to terminal after the first signal for receiving terminal transmission When inclined, inclined Δ t when partially including residual at the time of the first moment value indicates that access network equipment receives the first signal, when signal, Δ t's Absolute value is less than timing advance TA and adjusts granularity, and when the first moment value and signal is used for terminal partially and calculates clock jitter.

Inclined explanation when wherein, about signal specifically may refer to the associated description of embodiment beginning.Access network equipment can With constantly according to terminal send uplink signal measuring signal when it is inclined, uplink signal here can include but is not limited to the first letter Number.Inclined Δ t when partially may include residual when signal, the absolute value of Δ t are less than TA and adjust granularity.Illustratively, when TA adjusts grain Degree is 16T_SWhen, the absolute value of Δ t is less than 16T_S。

For access network equipment after the first signal for receiving terminal transmission, can recorde the time of reception is the first moment value, And it is sent to terminal partially when by the first moment value and the signal of measurement acquisition, when in order to terminal according to the first moment value and signal Clock jitter is calculated partially.

503, terminal is to the rear when receiving the first moment value and signal of access network equipment transmission, according to the first moment Inclined and the second moment value when value, signal calculates clock jitter, at the time of the second moment value instruction terminal sends the first signal, when Clock deviation is the time difference in terminal between the first clock configured and the second clock configured in access network equipment.

Here the second moment value can serve to indicate that, the sending instant that terminal is recorded when sending the first signal.First Clock is the local clock configured in terminal.Second clock is the local clock configured in access network equipment.Terminal is receiving It is to the rear when the first moment value and signal that access network equipment is sent, it can be according to inclined and the second moment when the first moment value, signal It is worth, the time difference between local clock configured in the local clock and access network equipment configured in computing terminal, the time Difference is properly termed as clock jitter.

Inclined explanation may refer to the associated description of embodiment beginning when wherein, about signal.Include partially when due to signal The absolute value of inclined Δ t when residual, Δ t are less than TA and adjust granularity, and the chronomere of Δ t specifically can be ns or the smaller time is single Position, clock jitter are according to calculating obtains partially when signal, and the calculating of clock jitter is not limited to the size of TA adjustment granularity, Thus the computational accuracy of clock jitter is higher.

504, terminal adjusts the first clock according to clock jitter.

After calculating acquisition clock jitter, terminal can be corresponding with access network equipment according to corresponding first clock of terminal Second clock between clock jitter, adjust the first clock so that terminal is synchronous with access network equipment holding.Specifically, working as When clock jitter is positive value, the first clock can be shifted to an earlier date the corresponding time quantum of clock jitter by terminal, so that adjusted the One clock is synchronous with second clock holding；When clock jitter is negative value, terminal can be by the first clock lagging clock deviation The corresponding time quantum of absolute value, so that the first clock adjusted is synchronous with second clock holding.For example, if according to Δ It is 20ns that t, which calculates the clock jitter obtained, then the first clock can be shifted to an earlier date 20ns by terminal；If according to Δ t calculate obtain when Clock deviation is -20ns, then the first clock can be lagged 20ns by terminal.

Wherein, since clock jitter is the Δ t calculating acquisition for being less than TA adjustment granularity according to its absolute value, computational accuracy It is higher, so that it is also higher to adjust synchronization accuracy of the clock to reach according to clock jitter.

In the above embodiments of the present application, the Δ t that terminal can be less than TA adjustment granularity according to its absolute value calculates clock Deviation, so that the calculating of clock jitter is not limited by the size of TA adjustment granularity, so as to improve the calculating of clock jitter Precision, and then corresponding first clock of terminal is being adjusted according to clock jitter, so that the first clock is corresponding with access network equipment Second clock when keeping synchronous, can be improved synchronization accuracy.

The first request mark can be carried in above-mentioned steps 501, in the first signal, which can use It is inclined when terminal requests the first moment value and signal to access network equipment.What access network equipment carried in receiving the first signal After the first request mark, it is sent to terminal partially when can be by the first moment value and signal.In this way, terminal can need to carry out When clock is synchronous, the first signal for carrying the request and identifying is sent to access network equipment.The embodiment of the present application is to first The form of mark is not especially limited, such as first identifier can be specific character string, specific bit sequence etc..

In above-mentioned steps 502, access network equipment may include: partially when sending the first moment value and signal to terminal

5020, access network equipment sends second signal to terminal, when carrying the first moment value and signal in second signal Partially；Alternatively, access network equipment sends third signal and fourth signal to terminal, the first moment value is carried in third signal, the It is carried in four signals inclined when signal.

That is, access network equipment passes through the same signal when can be by the first moment value and signal partially is sent to end End, to reduce the item number of interactive signaling；Alternatively, access network equipment will can also lead to respectively partially when the first moment value and signal It crosses different signals and is sent to terminal, so that implementation is more flexible.

In the embodiment of the present application, the scheme that above-mentioned steps 501-504 and step 5020 describe, can specifically apply In following 3 kinds of scenes.

Scene 1: random access procedure.

In this scenario, terminal not yet accesses network, and terminal side is not stored a TA, when signal inclined Δ t when partially including residual With TA adjusted value Δ TA.Referring to Fig. 6, the first signal can be the lead code Preamble sequence in random access procedure.

Access network equipment is inclined when can send the first moment value and signal to terminal with through the above steps 5020.Access net Equipment can send the first moment value, Δ t and Δ TA by the same signal, to reduce signaling item number；Alternatively, access network equipment The first moment value can be sent by a signal, Δ t and Δ TA be sent by another signal, so that implementation is more Flexibly.

Alternatively, access network equipment can also be inclined when sending the first moment value and signal to terminal with as follows 5021:

5021, access network equipment sends the 5th signal and the 6th signal to terminal, carries in the 5th signal inclined when signal In Δ TA, when carrying the first moment value and signal in the 6th signal partially in Δ t；Alternatively, access network equipment is sent out to terminal Send the 7th signal, the 8th signal and the 9th signal, when carrying signal in the 7th signal partially in Δ TA, carry in the 8th signal When having a signal partially in Δ t, carry the first moment value in the 9th signal.

That is, access network equipment can send Δ TA to terminal by a signal, by another in step 5021 One signal sends the first moment value and Δ t to terminal.Alternatively, access network equipment can also be sent out to terminal respectively by 3 signals The first moment value, Δ TA and Δ t are sent, so that implementation is more flexible.

It should be noted that above-mentioned " second signal " ..., " the 9th signal " is only used for distinguishing different signals, and not table Signal identical with above-mentioned quantity must be had by showing.

Wherein, since Δ TA is in existing random access procedure, access network equipment is also required to the parameter transmitted to terminal, and First moment value and Δ t are the parameters for needing additionally to transmit in the embodiment of the present application, thus can be by Δ TA using existing random Signal in access procedure is transmitted, and the first moment value and Δ t are transmitted by other signals, so as to more multiple With the signaling etc. of existing random access procedure, the modification to existing random process is reduced to the greatest extent.Also, it can also be by random access Process related command is opened with the decoupling of time service related command.Further, since the first moment value is absolute time, first moment is transmitted Be worth that the character needed is more, and data volume is larger, existing uplink signal may be limited to format or length and be difficult to carry this first Moment value, thus the first moment value can be transmitted by other signal.

In possible implementation, referring to Fig. 6, access network equipment is by the way that in existing random access procedure, MAC RAR disappears Timing Advance Command in breath, is sent to terminal for Δ TA.For example, above-mentioned 5th signal and the 7th signal can be with For Timing Advance Command.It is of course also possible to modify to existing Timing Advance Command, so that The first moment value and Δ t can also further be carried by obtaining Timing Advance Command, thus by the first moment value and Δ t Terminal is sent to also by Timing Advance Command.Wherein, the TAC in figure is for indicating Timing Advance Command。

Further, referring to Fig. 6, after the Δ TA that terminal receives that access network equipment is sent, this method can also include:

505, the initial value of TA is arranged according to Δ TA for terminal.

Specifically, terminal can set the initial value of timing advance TA to Δ TA × TA adjustment granularity.

Due to before random access procedure, not safeguarded TA in terminal, thus receive for the first time in the random access procedure After the Δ TA sent to access network equipment, terminal can start to safeguard TA, and set Δ TA × TA tune for the initial value of TA Whole grain degree.Different from the range of Δ TA in TA renewal process, in the random access procedure, Δ TA's may range from 0-1282, Thus the initial value of corresponding TA is that 0-1282 × TA adjusts granularity.

In this scenario, referring to the step 503 in Fig. 6, terminal can be according to the first moment value, the second moment value, signal When partially in Δ TA and Δ t, calculate clock jitter.If t0 indicates the second moment value, i.e., it is with the first clock configured in terminal The sending instant of first signal of benchmark, t1 indicates the first moment value, i.e., to access the second clock configured in net setting as base The time of reception of the first quasi- signal, td indicate the propagation delay time between terminal and access network equipment, then t1-td indicates that access net is set It is standby according to propagation delay time reckoning, the sending instant of the first signal on the basis of the second clock configured in access network equipment, T0- (t1-td) is the clock jitter Toffset between the first clock and second clock, specifically be may refer to such as following formula 1.And by In in this scenario, propagation delay time can be expressed as formula 2, thus clock jitter can be expressed as formula 3:

Toffset=t0- (t1-td) formula 1

(Δ TA*TA adjusts granularity+formula of Δ t)/2 2 to td=

Toffset=t0- [t1- (Δ TA*TA adjusts granularity+Δ t)/2] formula 3

It should be noted that in this scenario, when terminal and access network equipment are closer, when signal partially in Δ TA It may be 0；Alternatively, when just adjusting the integral multiple of granularity partially when signal for TA, when signal partially in Δ t may be 0.

In this scenario, method provided by the embodiments of the present application can be in conjunction with random access procedure, while realizing that clock is same Step and random access so that accessing terminal to network, and the related news that can be multiplexed in random access procedure, and only need compared with Few change, and the signaling item number needed can be less.

Scene 2:TA renewal process.

In this scenario, terminal accessed network, terminal side are stored with TA, and the first signal is the letter sent in advance according to TA Number, inclined absolute value was greater than TA and adjusted granularity when signal, when signal inclined Δ t and TA adjusted value Δ TA when partially including residual.Referring to Fig. 7, in above-mentioned steps 503, according to inclined and the second moment value when the first moment value, signal, calculate clock jitter includes: terminal

5030, terminal calculates clock jitter according to inclined, the second moment value and TA when the first moment value, signal.Letter therein Number when partially include Δ t and Δ TA.

In this scenario, the expression formula of propagation delay time td may refer to such as following formula 4:

Td=[TA+ (Δ TA-31) * TA adjusts granularity+Δ t]/2] formula 4

Convolution 4 and above-mentioned formula 1, then in this scenario, the expression formula of clock jitter Toffset may refer to such as following formula 5:

Toffset=t0- [t1- [TA+ (Δ TA-31) * TA adjusts granularity+Δ t]/2] formula 5

In this scenario, access network equipment can send first to terminal with through the above steps 5020 or above-mentioned steps 5021 It is inclined when moment value and signal.Also, referring to the step 502 in Fig. 7, access network equipment can also be by TA renewal process Δ TA is sent to terminal by Timing Advance Command, and which is not described herein again.

Further, referring to Fig. 7, in this scenario, after the Δ TA that terminal receives access network equipment transmission, the party Method can also include:

506, terminal adjusts TA according to Δ TA.

Terminal can be updated the TA stored before by step 506.Specifically, terminal adjusts TA according to Δ TA To may include: terminal, which be adjusted to TA+ (Δ TA-31) × TA for TA, adjusts granularity.That is, updated TA be update before TA with The sum of (Δ TA-31) × TA adjustment granularity.

In addition, in this scenario, TA and/or Δ t may be 0.

As it can be seen that in this scenario, method provided by the embodiments of the present application can be in conjunction with TA renewal process, while realizing clock Synchronous and TA updates, and the related news that can be multiplexed in existing TA renewal process, it is only necessary to less change, and need Signaling item number can be less.

Scene 3: terminal accessed network, terminal side are stored with TA, and inclined absolute value was less than TA and adjusted granularity, letter when signal Number when inclined Δ t when partially only including residual, without including Δ TA, TA does not need to update, and the first signal is sent in advance according to TA Signal.

Referring to Fig. 8, in above-mentioned steps 503, terminal is calculated according to inclined and the second moment value when the first moment value, signal Clock jitter may include:

5031, terminal calculates clock jitter according to inclined, the second moment value and TA when the first moment value, signal.Letter therein Number when partially include Δ t.

In this scenario, the expression formula of propagation delay time td may refer to such as following formula 6:

Td=(TA+ Δ t)/2 formula 6

Convolution 6 and above-mentioned formula 1, the expression formula of clock jitter Toffset may refer to such as following formula 7:

Toffset=t0- [t1- (TA+ Δ t)/2] formula 7

In this scenario, access network equipment can send first to terminal with through the above steps 5020 or above-mentioned steps 5021 Inclined when moment value and signal, which is not described herein again.

In addition, in this scenario, TA can also be 0.

In this scenario, realize the synchronous process of clock by calculating clock jitter, can be used as one it is relatively independent Process, and it is decoupling with TA, TA is only utilized when calculating clock jitter.Also, the signaling item number that the process needs can be less, And independent of other processes (such as cell switching flow) and mobility requirement.

Another embodiment of the application provides a kind of clock adjusting method, and referring to Fig. 9, this method may include:

901, terminal sends the first signal to access network equipment.

It wherein, can be with reference to the related description in above-mentioned steps 501 about explaining for the first signal.

902, access network equipment calculates propagation delay time when according to signal after the first signal for receiving terminal transmission partially, Inclined Δ t when partially including residual when signal, the absolute value of Δ t are less than timing advance TA and adjust granularity.

Wherein, it is obtained since propagation delay time is calculated according to the Δ t that its absolute value is less than TA adjustment granularity, so that transmission The calculating of time delay is not only restricted to the size of TA adjustment granularity.

903, propagation delay time and the first moment value are sent to terminal by access network equipment, and the first moment value is used to indicate access At the time of net equipment receives the first signal.

904, terminal is after the first moment value and propagation delay time for receiving access network equipment transmission, according to the first moment Value, propagation delay time and the second moment value calculate clock jitter, at the time of the second moment value instruction terminal sends the first signal, when Clock deviation is the time difference in terminal between the first clock configured and the second clock configured in access network equipment.

It is obtained since clock jitter is calculated according to propagation delay time, and propagation delay time is calculated according to Δ t and is obtained, Δ t's is absolute Value is less than TA and adjusts granularity, and the chronomere of Δ t specifically can be ns or smaller chronomere, thus propagation delay time and clock The calculating of deviation is not only restricted to the size of TA adjustment granularity, thus the calculating of clock jitter is also not limited to the big of TA adjustment granularity Small, the computational accuracy of clock jitter is higher.

905, terminal adjusts the first clock according to clock jitter.

In this step, since clock jitter is the Δ t calculating acquisition for being less than TA adjustment granularity according to its absolute value, meter Calculation precision is higher, so that it is also higher to adjust synchronization accuracy of the clock to reach according to clock jitter.

In the above embodiments of the present application, the Δ t that access network equipment can be less than TA adjustment granularity according to its absolute value is counted Propagation delay time is calculated, and propagation delay time is sent to terminal to calculate clock jitter, so that propagation delay time and clock jitter The size for being not limited by TA adjustment granularity is calculated, thus the computational accuracy of clock jitter can be improved, and then according to clock Corresponding first clock of deviation adjusting terminal, so that the first clock second clock corresponding with access network equipment keeps synchronous When, it can be improved synchronization accuracy.

The second request mark can be carried in above-mentioned steps 901, in the first signal, which can use The first moment value and propagation delay time are requested to access network equipment in terminal.What access network equipment carried in receiving the first signal After the second request mark, the first moment value and propagation delay time can be sent to terminal.In this way, terminal can need to carry out When clock is synchronous, the first signal for carrying the request and identifying is sent to access network equipment.

In above-mentioned steps 903, access network equipment can be sent out propagation delay time and the first moment value by the same signal Terminal is given, to reduce signaling item number；Alternatively, access network equipment can also be by 2 different signals, respectively by the first moment Value and propagation delay time are sent respectively to terminal, so that implementation is more flexible.

In the embodiment of the present application, the scheme of above-mentioned steps 901-905 description, can specifically apply in following 3 kinds of scenes In.

Scene 1: random access procedure.

In this scenario, terminal side is not stored a TA, when signal inclined Δ t and TA adjusted value Δ TA when partially including residual.The One signal can be the lead code Preamble sequence in random access procedure.Access network equipment in above-mentioned steps 902, according to When signal partially in Δ t and Δ TA calculate propagation delay time, the expression formula of propagation delay time may refer to such as equation 2 above；And in above-mentioned step In rapid 904, according to propagation delay time, the expression formula for calculating clock jitter may refer to such as equation 1 above access network equipment, no longer superfluous here It states.

In above-mentioned steps 903, access network equipment can by the same signal, by the first moment value, propagation delay time and Δ TA is sent to terminal, to reduce the item number of interaction signaling.Alternatively, access network equipment can be sent Δ TA by a signal To terminal, and the first moment value and propagation delay time are sent to by terminal by another signal；Alternatively, access network equipment can lead to 3 signals are crossed, a parameter in the first moment value, propagation delay time, Δ TA is individually sent to terminal respectively, so that realizing Mode is more flexible.

In one possible implementation, referring to Figure 10 a, after above-mentioned steps 903, this method can also include:

906, access network equipment sends Timing Advance Command, Timing Advance Command to terminal In carry Δ TA.

Alternatively, in one possible implementation, referring to Figure 10 b, above-mentioned steps 903 be can specifically include:

9030, access network equipment sends Timing Advance Command, Timing Advance to terminal The first moment value, propagation delay time and Δ TA are carried in Command.In this way, the Timing in random access procedure can be multiplexed Advance Command comes while transmitting the first moment value and propagation delay time needed for synchronizing process.

Further, referring to Figure 10 a and Figure 10 b, after the Δ TA that terminal receives access network equipment transmission, this method It can also include above-mentioned steps 505, so that terminal can start to safeguard TA, and the initial value of TA is set according to Δ TA.

It should be noted that in this scenario, when signal partially in Δ TA or Δ t can be 0.

As it can be seen that in this scenario, method provided by the embodiments of the present application can be in conjunction with random access procedure, while when realizing Clock synchronization and random access, so that accessing terminal to network, and the related news that can be multiplexed in random access procedure, and only need Less change is wanted, and the signaling item number needed can be less.

Scene 2:TA renewal process.

In this scenario, terminal accessed network, terminal side are stored with TA, and the first signal is the letter sent in advance according to TA Number, inclined absolute value was greater than TA and adjusted granularity when signal, when signal inclined Δ t and TA adjusted value Δ TA when partially including residual.

In one possible implementation, before above-mentioned steps 902, this method can also include:

907, terminal shifts to an earlier date TA to access network equipment transmission timing.

Based on step 907, step 902 may include:

9020, access network equipment calculates propagation delay time according to inclined and TA when signal.

Alternatively, carrying timing advance TA, step 902 in above-mentioned first signal in alternatively possible implementation It is specifically as follows above-mentioned steps 9020.

In this scenario, access network equipment can in above-mentioned steps 902 according to when TA and signal partially in Δ t and Δ TA calculates propagation delay time, and the expression formula of propagation delay time may refer to such as equation 4 above；And in above-mentioned steps 904, access network equipment root According to propagation delay time, the expression formula for calculating clock jitter be may refer to such as equation 1 above, and which is not described herein again.

In this scenario, the sending method about propagation delay time and Δ TA, specifically may refer to step 903 in Figure 10 a, Step 903 in 906 and Figure 10 b, which is not described herein again.

Further, referring to Figure 11 a and Figure 11 b, in this scenario, the Δ TA of access network equipment transmission is received in terminal Later, this method can also include above-mentioned steps 506, so that terminal can be updated the TA stored before.

In addition, in this scenario, TA and/or Δ t can also be 0.

As it can be seen that in this scenario, method provided by the embodiments of the present application can be in conjunction with TA renewal process, while realizing clock Synchronous and TA updates, and the related news that can be multiplexed in existing TA renewal process, and only needs less change, and needs Signaling item number can be less.

Scene 3: terminal accessed network, terminal side are stored with TA, and inclined absolute value was less than TA and adjusted granularity, letter when signal Number when inclined Δ t when partially only including residual, without including Δ TA, TA does not need to update, and the first signal is sent in advance according to TA Signal.

In one possible implementation, before above-mentioned steps 902, this method can also include above-mentioned steps 907, Based on step 907, step 902 may include above-mentioned steps 9020.Alternatively, in alternatively possible implementation, above-mentioned Timing advance TA is carried in one signal, step 902 is specifically as follows above-mentioned steps 9020.

In this scenario, referring to Figure 12, access network equipment in above-mentioned steps 902 can according to when TA and signal partially in Δ t calculate propagation delay time, the expression formula of propagation delay time may refer to such as equation 6 above；And in above-mentioned steps 904, access net is set It is standby according to propagation delay time, the expression formula for calculating clock jitter may refer to such as equation 1 above, and which is not described herein again.

In addition, in this scenario, TA can also be 0.

In this scenario, realize the synchronous process of clock by calculating clock jitter, can be used as one it is relatively independent Process, it is decoupling with TA, and TA is only utilized when calculating clock jitter.Also, the signaling item number that the process needs can be less, And independent of other processes (such as cell switching flow) and mobility requirement.

Another embodiment of the application provides a kind of clock adjusting method, and referring to Figure 13, this method may include:

1301, terminal sends the first signal and the second moment value to access network equipment, and the second moment value instruction terminal is sent At the time of first signal.

Wherein, it may refer to the associated description in above-mentioned steps 501 about the explanation of the first signal.

1302, access network equipment is after the first signal and the second moment value for receiving terminal transmission, according to the second moment Value, signal when partially and the first moment value, calculate clock jitter, the first moment value indicate access network equipment receive the first signal when It carves, clock jitter is the time difference in terminal between the first clock configured and the second clock configured in access network equipment, Inclined Δ t when partially including residual when signal, the absolute value of Δ t are less than timing advance TA and adjust granularity, and clock jitter is used for terminal tune Whole first clock.

Wherein, it is obtained since clock jitter is calculated according to Δ t, when the chronomere of Δ t specifically can be ns or smaller Between unit, thus the calculating of clock jitter is not only restricted to the size of TA adjustment granularity, and the computational accuracy of clock jitter is higher.

1303, clock jitter is sent to terminal by access network equipment.

1304, terminal adjusts the first clock according to clock jitter after the clock jitter for receiving access network equipment transmission.

Wherein, since clock jitter is the Δ t calculating acquisition for being less than TA adjustment granularity according to its absolute value, computational accuracy It is higher, so that it is also higher to adjust synchronization accuracy of the clock to reach according to clock jitter.

In the above embodiments of the present application, the Δ t that access network equipment can be less than TA adjustment granularity according to its absolute value is counted Clock jitter is calculated, so that the calculating of clock jitter is not limited by the size of TA adjustment granularity, so as to improve clock jitter Computational accuracy, and then clock jitter is sent to terminal so that terminal according to clock jitter adjust terminal it is corresponding first when Clock, so that can be improved synchronization accuracy when the first clock second clock corresponding with access network equipment keeps synchronous.

Third request mark can also be carried in above-mentioned steps 1301, in the first signal, third request mark can To request clock jitter to access network equipment for terminal.The third that access network equipment carries in receiving the first signal is asked After seeking mark, clock jitter can be sent to terminal.In this way, terminal can need to carry out clock it is synchronous when, to connecing Log equipment sends the first signal for carrying request mark.

In one possible implementation, terminal sends the second moment value to access network equipment in above-mentioned steps 1301 May include:

13010, terminal sends second signal to access network equipment, carries the second moment value in second signal.In this way, can So that the transfer mode of the second moment value is more flexible.

In alternatively possible implementation, the second moment value can be carried in the first signal, terminal passes through first Second moment value is sent to access network equipment by signal.In this way, by carrying the second moment value in the first signal, it is possible to reduce The item number of interaction signaling.

In one possible implementation, before above-mentioned steps 1302, this method can also include:

1305, access network equipment receives the timing advance TA that terminal is sent；

Based on step 1305, step 1302 be can specifically include:

13020, access network equipment calculates clock jitter according to inclined and TA when the first moment value, the second moment value, signal.

Alternatively, timing advance TA, above-mentioned steps can be carried in the first signal in alternatively possible implementation 1302 are specifically as follows step 13020.

In the embodiment of the present application, the scheme of above-mentioned steps 1301-1305 and step 13010,13020 descriptions, specifically It can apply in following 2 kinds of scenes.

Scene 1:TA renewal process.

In this scenario, terminal accessed network, terminal side are stored with TA, and the first signal is the letter sent in advance according to TA Number, inclined absolute value was greater than TA and adjusted granularity when signal, when signal inclined Δ t and TA adjusted value Δ TA when partially including residual.Referring to Figure 14, access network equipment, according to inclined and the first moment value when the second moment value, signal, calculate clock in above-mentioned steps 1302 Deviation includes:

13021, access network equipment according to when the second moment value, signal partially in Δ t and Δ TA, the first moment value and TA, Calculate clock jitter.The expression formula of clock jitter can refer to above-mentioned formula 5, and which is not described herein again.

In a kind of possible implementation in, referring to Figure 14 a, after above-mentioned steps 1303, this method can also be wrapped It includes:

1305, access network equipment sends Timing Advance Command, Timing Advance to terminal Δ TA is carried in Command.

In alternatively possible implementation, referring to Figure 14 b, above-mentioned steps 1303 may include: access network equipment to Terminal sends in Timing Advance Command, Timing Advance Command and carries clock jitter and Δ TA. In this way, by Timing Advance Command simultaneously tranmitting data register deviation and Δ TA, can be multiplexed in the prior art Signal, and reduce the item number of interactive signaling.

Further, referring to Figure 14 a and Figure 14 b, in this scenario, the Δ TA of access network equipment transmission is received in terminal Later, this method can also include above-mentioned steps 506, so that terminal can be updated the TA stored before.

In addition, in this scenario, TA and/or Δ t can also be 0.

As it can be seen that in this scenario, method provided by the embodiments of the present application can be in conjunction with TA renewal process, while realizing clock Synchronous and TA updates, and the related news that can be multiplexed in existing TA renewal process, and only needs less change, and needs Signaling item number can be less.

Scene 2: terminal accessed network, terminal side are stored with TA, and inclined absolute value was less than TA and adjusted granularity, letter when signal Number when inclined Δ t when partially including residual, without including Δ TA, TA does not need to update, and the first signal is the letter sent in advance according to TA Number.

Referring to Figure 15, access network equipment is in above-mentioned steps 1302, according to inclined and the first moment when the second moment value, signal Value, calculating clock jitter includes:

13021, access network equipment calculates clock jitter according to inclined, the first moment value and TA when the second moment value, signal. It wherein, partially only include Δ t when signal.The expression formula of clock jitter can refer to above-mentioned formula 7, and which is not described herein again.

In addition, in this scenario, TA can also be 0.

In this scenario, realize the synchronous process of clock by calculating clock jitter, can be used as one it is relatively independent Process, it is decoupling with TA, and TA is only utilized when calculating clock jitter.Also, the signaling item number that the process needs can be less, Other processes (such as cell switching flow) and mobility requirement are not depended on.

It is above-mentioned that mainly scheme provided by the embodiments of the present application is described from the angle of interaction between each network element.It can With understanding, each network element, such as access network equipment, terminal are in order to realize the above functions, it comprises execute each function Corresponding hardware configuration and/or software module.Those skilled in the art should be readily appreciated that, in conjunction with disclosed herein Each exemplary algorithm steps of embodiment description, the application can be come real with the combining form of hardware or hardware and computer software It is existing.Some functions is executed in a manner of hardware or computer software driving hardware actually, depending on the specific of technical solution Using and design constraint.Professional technician can realize each specific application using distinct methods described Function, but it is this realize it is not considered that exceed scope of the present application.

The embodiment of the present application can carry out the division of functional unit according to above method example to access network equipment, terminal, For example, each functional unit of each function division can be corresponded to, two or more functions can also be integrated in one In processing module.Above-mentioned integrated module both can take the form of hardware realization, can also use the shape of SFU software functional unit Formula is realized.It should be noted that being schematical, only a kind of logic function stroke to the division of module in the embodiment of the present application Point, there may be another division manner in actual implementation.

In the case where each function division of use correspondence each functional unit, Figure 16 shows in above-mentioned and embodiment and relates to And terminal a kind of possible composition schematic diagram, as shown in figure 16, the terminal may include: transmission unit 1601, receive it is single Member 1602, computing unit 1603, adjustment unit 1604 and setting unit 1605.

In a kind of possible embodiment, transmission unit 1601 is for supporting terminal to execute step shown in figure 5-8 Rapid 501, receiving unit 1602 is for supporting terminal to execute step 502 shown in figure 5-8, and computing unit 1603 is for supporting Terminal executes step 503 shown in Fig. 5 and Fig. 6, step 5030 and step 5031 shown in fig. 8 in Fig. 7.Adjustment unit 1604 for supporting terminal to execute step 504 and step 506 shown in fig. 7 shown in figure 5-8.Setting unit 1605 for supporting terminal to execute step 505 shown in Fig. 6.

In alternatively possible embodiment, transmission unit 1601 is for supporting terminal to execute shown in Fig. 9-Figure 12 Step 901, receiving unit 1602 is for supporting terminal to execute step 903 shown in Fig. 9-Figure 12, institute in Figure 10 a and Figure 11 a The step 906 shown, computing unit 1603 is for supporting terminal to execute step 904 shown in Fig. 9-Figure 12.Adjustment unit 1604 For supporting terminal to execute step 506 shown in step 905 shown in Fig. 9-Figure 12 and Figure 11 a and Figure 11 b.Setting Unit 1605 is for supporting terminal to execute step 505 shown in Figure 10 a and Figure 10 b.

Figure 17 shows the alternatively possible composition schematic diagrams of terminal involved in above-mentioned and embodiment, such as Figure 17 institute Show, which may include: transmission unit 1701, receiving unit 1702 and adjustment unit 1703.Wherein, transmission unit 1701 is used In supporting terminal to execute step 1301 shown in Figure 13-Figure 15, receiving unit 1702 is for supporting terminal to execute Figure 13-Figure 15 Shown in step 1303, step 1305 shown in Figure 14 a, adjustment unit 1703 is for supporting terminal to execute Figure 13-Figure 15 Shown in step 506 shown in step 1304 and Figure 14 a and Figure 14 b.

It should be noted that all related contents for each step that above method embodiment is related to can quote correspondence The function of functional unit describes, and details are not described herein.Terminal provided by the embodiments of the present application, for executing above-mentioned clock adjustment side Method, therefore can achieve effect identical with above-mentioned clock adjusting method.

In the case where each function division of use correspondence each functional unit, Figure 18 shows in above-mentioned and embodiment and relates to And access network equipment a kind of possible composition schematic diagram, as shown in figure 18, which may include: receiving unit 1801 and transmission unit 1802.Wherein, receiving unit 1801 is for supporting access network equipment to execute step shown in figure 5-8 501, transmission unit 1802 is for supporting access network equipment to execute step 502 shown in figure 5-8.

In the case where each function division of use correspondence each functional unit, Figure 19 shows in above-mentioned and embodiment and relates to And access network equipment alternatively possible composition schematic diagram, as shown in figure 19, the access network equipment may include: receive it is single Member 1901, computing unit 1902 and transmission unit 1903.

In a kind of possible embodiment, receiving unit 1901 is for supporting access network equipment to execute institute in Fig. 9-Figure 12 The step 901 shown, computing unit 1902 are sent single for supporting access network equipment to execute step 902 shown in Fig. 9-Figure 12 Member 1903 is for supporting access network equipment to execute step 903 shown in Fig. 9-Figure 12, step shown in Figure 10 a and Figure 11 a 906。

In alternatively possible embodiment, receiving unit 1901 is for supporting access network equipment to execute Figure 13-Figure 15 Shown in step 1301, computing unit 1902 for supporting access network equipment to execute step 1302 shown in Figure 13-Figure 15, Transmission unit 1903 is for supporting access network equipment to execute step 1303 shown in Figure 13-Figure 15, step shown in Figure 14 a 1305。

It should be noted that all related contents for each step that above method embodiment is related to can quote correspondence The function of functional unit describes, and details are not described herein.Access network equipment provided by the embodiments of the present application, for executing above-mentioned clock Method of adjustment, therefore can achieve effect identical with above-mentioned clock adjusting method.

Further, the terminal in Figure 16-Figure 19 or access network equipment are presented in the form of functional unit.Here " unit " can refer to application-specific integrated circuit (application specific integrated circuit, ASIC), electricity Road, executes the processor and memory of one or more softwares or firmware program, integrated logic circuit and/or other can mention For the device of above-mentioned function.In a simple embodiment, those skilled in the art is contemplated that the end in Figure 16-Figure 19 End or access network equipment can use the form of Figure 20 shown device.Each unit can pass through the processor in Figure 20 shown device It is realized with memory.

As shown in figure 20, it the apparatus may include one or more ports 2004, is coupled with transceiver 2003.Transceiver 2003 can be transmitter, receiver or combinations thereof, send or receive data packet from other network elements by port 2004.Processor 2001 are coupled to transceiver 2003, for handling data packet.Processor 2001 may include one or more multi-core processors and/or Memory 2002.Processor 2001 can be a general processor, specific integrated circuit or digital signal processor (digital signal processing, DSP).

Memory 2002 can be the storage medium of non-transient, be coupled with processor 2001, for saving different type Data.Memory 2002 may include read-only memory (read only memory, ROM), random access memory (random Access memory, RAM) or the other kinds of dynamic memory of information and instruction can be stored, it is also possible to disk and deposits Reservoir.Memory 2002 can be used for saving the instruction for realizing link keeping method.

Processor 2001 can realize that embodiment according to the present invention executes one or more instructions and carries out link guarantor to trigger It holds.These instructions are storable in memory 2002, may alternatively be integrated in the kernel of operating system or the plug-in unit of kernel.

When processor 2001 executes instruction, which makes terminal or access network equipment execute above-mentioned clock adjusting method, Therefore it can achieve effect identical with above-mentioned clock adjusting method or clock jitter calculation method.

The embodiment of the present application also provides a kind of computer storage medium, which can be above-mentioned memory 2002。

The embodiment of the present application also provides a kind of computer program products comprising instruction, when it runs on computers When, allow computer to execute clock adjusting method performed by above-mentioned terminal.

The embodiment of the present application also provides a kind of computer program products comprising instruction, when it runs on computers When, allow computer to execute the adjustment of clock performed by above-mentioned access network equipment or clock jitter calculation method.

The embodiment of the present application also provides a kind of communication system, basic framework may refer to Fig. 1, which includes can be with Realize the terminal and access network equipment of above-mentioned clock adjustment or clock jitter calculation method.

Through the above description of the embodiments, it is apparent to those skilled in the art that, for description It is convenienct and succinct, only the example of the division of the above functional modules, in practical application, can according to need and will be upper It states function distribution to be completed by different functional modules, i.e., the internal structure of device is divided into different functional modules, to complete All or part of function described above.

In several embodiments provided herein, it should be understood that disclosed device and method can pass through it Its mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the module or unit It divides, only a kind of logical function partition, there may be another division manner in actual implementation, such as multiple units or components It may be combined or can be integrated into another device, or some features can be ignored or not executed.Another point, it is shown or The mutual coupling, direct-coupling or communication connection discussed can be through some interfaces, the indirect coupling of device or unit It closes or communicates to connect, can be electrical property, mechanical or other forms.

The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown can be a physical unit or multiple physical units, it can and it is in one place, or may be distributed over Multiple and different places.Some or all of unit therein can be selected to realize this embodiment scheme according to the actual needs Purpose.

It, can also be in addition, each functional unit in each embodiment of the application can integrate in one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.Above-mentioned integrated list Member both can take the form of hardware realization, can also realize in the form of software functional units.

If the integrated unit is realized in the form of SFU software functional unit and sells or use as independent product When, it can store in a read/write memory medium.Based on this understanding, the technical solution of the embodiment of the present application is substantially The all or part of the part that contributes to existing technology or the technical solution can be in the form of software products in other words It embodies, which is stored in a storage medium, including some instructions are used so that an equipment (can be list Piece machine, chip etc.) or processor (processor) execute each embodiment the method for the application all or part of the steps. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory, random access memory, magnetic or disk etc. are each Kind can store the medium of program code.

The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Change or replacement within the technical scope of the present application should all be covered within the scope of protection of this application.Therefore, this Shen Protection scope please should be based on the protection scope of the described claims.

Claims (65)

1. a kind of clock adjusting method, which is characterized in that the described method includes:

Terminal sends the first signal to access network equipment；

The terminal receives inclined when the first moment value that the access network equipment is sent and signal, the first moment value instruction institute At the time of stating access network equipment and receive first signal, inclined Δ t when partially including residual when the signal, the Δ t's is absolute Value is less than timing advance TA and adjusts granularity；

The terminal according to when first moment value, the signal partially and the second moment value, calculate clock jitter, described second At the time of moment value indicates that the terminal sends first signal, when the clock jitter is first configured in the terminal The time difference between second clock configured in clock and the access network equipment；

The terminal adjusts first clock according to the clock jitter.

2. the method according to claim 1, wherein partially further including timing advance TA adjusted value Δ when the signal TA, the Δ TA are the integral multiple that the TA adjusts granularity.

3. according to the method described in claim 2, it is characterized in that, being stored with timing advance TA, the method in the terminal Further include:

The terminal adjusts the TA according to the Δ TA.

4. method according to claim 1-3, which is characterized in that the terminal receives the access network equipment hair Include: partially when the first moment value and signal sent

The terminal receives the second signal that the access network equipment is sent, and carries first moment in the second signal It is inclined when value and the signal；

Alternatively, the terminal receives the third signal and fourth signal that the access network equipment is sent, taken in the third signal With first moment value, carried in the fourth signal inclined when the signal.

5. according to the method in claim 2 or 3, which is characterized in that the terminal receives what the access network equipment was sent Include: partially when the first moment value and signal

The terminal receives the 5th signal and the 6th signal that the access network equipment is sent, and carries in the 5th signal When stating signal partially in the Δ TA, when carrying first moment value and the signal in the 6th signal partially in institute State Δ t；

Alternatively, the terminal receives the 7th signal, the 8th signal and the 9th signal that the access network equipment is sent, the described 7th When carrying the signal in signal partially in the Δ TA, when carrying the signal in the 8th signal partially in it is described Δ t carries first moment value in the 9th signal.

6. according to the method described in claim 5, it is characterized in that, the 5th signal or the 7th signal are timing advance Order Timing Advance Command.

7. the method according to claim 1, wherein be stored with timing advance TA in the terminal, the terminal Inclined when according to second moment value, first moment value and the signal, calculating clock jitter includes:

It is inclined to calculate clock by inclined and described TA when the terminal is according to second moment value, first moment value, the signal Difference.

8. it is identified the method according to claim 1, wherein carrying request in first signal, it is described to ask Ask mark inclined when requesting first moment value and the signal to the access network equipment for the terminal.

9. a kind of clock jitter calculation method, which is characterized in that the described method includes:

Access network equipment receives the first signal that terminal is sent；

The access network equipment is inclined when sending the first moment value and signal to the terminal, connects described in the first moment value instruction Inclined Δ t, the absolute value of the Δ t are small when partially including residual at the time of log equipment receives first signal, when the signal It is used for the terminal partially when timing advance TA adjustment granularity, first moment value and the signal and calculates clock jitter.

10. according to the method described in claim 9, it is characterized in that, when signal further includes timing advance adjusted value Δ partially TA, the Δ TA are the integral multiple that TA adjusts granularity.

11. according to the method described in claim 9, it is characterized in that, when the access network equipment sends first to the terminal Quarter value and when signal include: partially

The access network equipment sends second signal to the terminal, carry in the second signal first moment value and It is inclined when the signal；

Alternatively, the access network equipment sends third signal and fourth signal to the terminal, carried in the third signal First moment value carries in the fourth signal inclined when the signal.

12. according to the method described in claim 10, it is characterized in that, when the access network equipment sends first to the terminal Quarter value and when signal include: partially

The access network equipment sends the 5th signal and the 6th signal to the terminal, carries the letter in the 5th signal Number when partially in the Δ TA, when carrying first moment value and the signal in the 6th signal partially in the Δ t；

Alternatively, the access network equipment sends the 7th signal, the 8th signal and the 9th signal, the 7th signal to the terminal In when carrying the signal partially in the Δ TA, when carrying the signal in the 8th signal partially in the Δ t, First moment value is carried in 9th signal.

13. according to the method for claim 12, which is characterized in that the 5th signal or the 7th signal mention for timing Preceding order Timing Advance Command.

14. according to the described in any item methods of claim 9-13, which is characterized in that carry request mark in first signal Know, the request mark is inclined when requesting first moment value and the signal to the access network equipment for the terminal.

15. a kind of clock adjusting method, which is characterized in that the described method includes:

Terminal sends the first signal and the second moment value to access network equipment, and second moment value indicates that the terminal sends institute At the time of stating the first signal；

The terminal receives the clock jitter that the access network equipment is sent, and the clock jitter is the configured in the terminal The time difference between second clock configured in one clock and the access network equipment, the clock jitter is according to described second Acquisition is calculated when moment value, the first moment value and signal partially, first moment value indicates described in the access network equipment reception Inclined Δ t, the absolute value of the Δ t are less than timing advance TA adjustment when partially including residual at the time of the first signal, when the signal Granularity；

The terminal adjusts first clock according to the clock jitter.

16. according to the method for claim 15, which is characterized in that partially further include timing advance adjusted value Δ when the signal TA, the Δ TA are the integral multiple that the TA adjusts granularity.

17. according to the method for claim 16, which is characterized in that be stored with timing advance TA, the side in the terminal Method further include:

The terminal adjusts the TA according to the Δ TA.

18. method according to claim 16 or 17, which is characterized in that the method also includes:

The timing advance order Timing Advance Command that the terminal receives that the access network equipment sends, it is described fixed When advance command in carry the Δ TA.

19. method according to claim 16 or 17, which is characterized in that the terminal receives the access network equipment and sends Clock jitter include:

The timing advance order Timing Advance Command that the terminal receives that the access network equipment sends, it is described fixed When advance command in carry the clock jitter and the Δ TA.

20. according to the method for claim 15, which is characterized in that timing advance TA is stored in the terminal, described Before terminal receives the clock jitter that the access network equipment is sent, the method also includes:

The TA is sent to the access network equipment by the terminal, and the TA calculates the clock for the access network equipment Deviation.

21. according to the method for claim 15, which is characterized in that it is stored with timing advance TA in the terminal, described the The TA is carried in one signal.

22. according to the method for claim 15, which is characterized in that carry second moment in first signal Value.

23. according to the method for claim 15, which is characterized in that the terminal sends described the to the access network equipment Two moment values include:

The terminal sends second signal to the access network equipment, carries second moment value in the second signal.

24. according to the method for claim 15, which is characterized in that request mark is carried in first signal, it is described Request mark requests the clock jitter to the access network equipment for the terminal.

25. a kind of clock adjusting method, which is characterized in that the described method includes:

Access network equipment receives the first signal and the second moment value that terminal is sent, and second moment value indicates the terminal hair At the time of sending first signal；

The access network equipment is according to partially and the first moment value, calculating clock jitter when second moment value, signal, and described the At the time of one moment value indicates that the access network equipment receives first signal, the clock jitter is to configure in the terminal The first clock and the access network equipment in time difference between the second clock that configures, when signal includes residual partially When inclined Δ t, the absolute value of the Δ t is less than timing advance TA and adjusts granularity, and the clock jitter adjusts institute for the terminal State the first clock；

The clock jitter is sent to the terminal by the access network equipment.

26. according to the method for claim 25, which is characterized in that partially further include timing advance TA adjusted value when the signal Δ TA, the Δ TA are the integral multiple that the TA adjusts granularity.

27. according to the method for claim 26, which is characterized in that the method also includes:

The access network equipment is mentioned to the terminal transmission timing advance command Timing Advance Command, the timing The Δ TA is carried in preceding order.

28. according to the method for claim 26, which is characterized in that the access network equipment is inclined to the terminal tranmitting data register Difference includes:

The access network equipment is mentioned to the terminal transmission timing advance command Timing Advance Command, the timing The clock jitter and the Δ TA are carried in preceding order.

29. according to the described in any item methods of claim 25-28, which is characterized in that in the access network equipment according to It is inclined when the first moment value, second moment value and signal, before calculating clock jitter, the method also includes:

The access network equipment receives the timing advance TA that the terminal is sent；

It is inclined when the access network equipment is according to first moment value, second moment value and signal, calculate clock jitter packet It includes:

Inclined and described TA when the access network equipment is according to first moment value, second moment value, the signal is calculated The clock jitter.

30. according to the described in any item methods of claim 25-28, which is characterized in that carry timing in first signal TA in advance, it is inclined when the access network equipment is according to first moment value, second moment value and signal, calculate clock jitter Include:

Inclined and described TA when the access network equipment is according to first moment value, second moment value, the signal is calculated The clock jitter.

31. according to the method for claim 25, which is characterized in that carry second moment in first signal Value.

32. according to the method for claim 25, which is characterized in that the access network equipment receives the institute that the terminal is sent Stating the second moment value includes:

The access network equipment receives the second signal that the terminal is sent, and carries second moment in the second signal Value.

33. a kind of terminal for clock adjustment characterized by comprising

Transmission unit, for sending the first signal to access network equipment；

Receiving unit, inclined, first moment value when for receiving the first moment value and signal of the access network equipment transmission At the time of indicating that the access network equipment receives first signal, when signal inclined Δ t, the Δ t when partially including residual Absolute value be less than timing advance TA adjust granularity；

Computing unit, for calculating clock jitter, institute according to inclined and the second moment value when first moment value, the signal At the time of stating the second moment value and indicate that the terminal sends first signal, configured in the clock jitter terminal The time difference between second clock configured in first clock and the access network equipment；

Adjustment unit, for adjusting first clock according to the clock jitter.

34. terminal according to claim 33, which is characterized in that partially further include timing advance TA adjusted value when the signal Δ TA, the Δ TA are the integral multiple that the TA adjusts granularity.

35. terminal according to claim 34, which is characterized in that further include:

Storage unit, for storing timing advance TA；

The adjustment unit is also used to, and adjusts the TA according to the Δ TA.

36. according to the described in any item terminals of claim 33-35, which is characterized in that the receiving unit is specifically used for:

The second signal that the access network equipment is sent is received, first moment value and described is carried in the second signal It is inclined when signal；

Alternatively, receiving the third signal and fourth signal that the access network equipment is sent, carried in the third signal described First moment value carries in the fourth signal inclined when the signal.

37. the terminal according to claim 34 or 35, which is characterized in that the receiving unit is specifically used for:

The 5th signal and the 6th signal that the access network equipment is sent are received, when carrying the signal in the 5th signal The Δ TA in partially, when carrying first moment value and the signal in the 6th signal partially in the Δ t；

Alternatively, receiving the 7th signal, the 8th signal and the 9th signal that the access network equipment is sent, taken in the 7th signal When with the signal partially in the Δ TA, when carrying the signal in the 8th signal partially in the Δ t, it is described First moment value is carried in 9th signal.

38. the terminal according to claim 37, which is characterized in that the 5th signal or the 7th signal mention for timing Preceding order Timing Advance Command.

39. terminal according to claim 33, which is characterized in that the terminal includes storage unit, the storage unit In be stored with timing advance TA, the computing unit is specifically used for:

Inclined and described TA when according to second moment value, first moment value, the signal calculates clock jitter.

40. terminal according to claim 33, which is characterized in that request mark is carried in first signal, it is described Request mark is inclined when requesting first moment value and the signal to the access network equipment for the terminal.

41. a kind of access network equipment characterized by comprising

Receiving unit, for receiving the first signal of terminal transmission；

Transmission unit, it is inclined when for sending the first moment value and signal to the terminal, it is connect described in the first moment value instruction Inclined Δ t, the absolute value of the Δ t are small when partially including residual at the time of log equipment receives first signal, when the signal It is used for the terminal partially when timing advance TA adjustment granularity, first moment value and the signal and calculates clock jitter.

42. access network equipment according to claim 41, which is characterized in that partially further include timing advance tune when the signal Whole value Δ TA, the Δ TA are the integral multiple that TA adjusts granularity.

43. access network equipment according to claim 41, which is characterized in that the transmission unit is specifically used for:

Second signal is sent to the terminal, is carried in the second signal inclined when first moment value and the signal；

Alternatively, sending third signal and fourth signal to the terminal, first moment value is carried in the third signal, It is carried in the fourth signal inclined when the signal.

44. access network equipment according to claim 42, which is characterized in that the transmission unit is specifically used for:

Send the 5th signal and the 6th signal to the terminal, when carrying the signal in the 5th signal partially in it is described Δ TA, when carrying first moment value and the signal in the 6th signal partially in the Δ t；

Alternatively, sending the 7th signal, the 8th signal and the 9th signal to the terminal, the letter is carried in the 7th signal Number when partially in the Δ TA, when carrying the signal in the 8th signal partially in the Δ t, in the 9th signal Carry first moment value.

45. access network equipment according to claim 44, which is characterized in that the 5th signal or the 7th signal are Timing advance order Timing Advance Command.

46. according to the described in any item access network equipments of claim 41-45, which is characterized in that carried in first signal There is request to identify, the request mark requests first moment value and the letter to the access network equipment for the terminal Number when it is inclined.

47. a kind of terminal for clock adjustment characterized by comprising

Transmission unit, described in access network equipment the first signal of transmission and the second moment value, second moment value is indicated At the time of terminal sends first signal；

Receiving unit, the clock jitter sent for receiving the access network equipment, the clock jitter are to match in the terminal The time difference between second clock configured in the first clock and the access network equipment set, the clock jitter is according to institute Acquisition is calculated when stating the second moment value, the first moment value and signal partially, first moment value indicates that the access network equipment connects Inclined Δ t, the absolute value of the Δ t are less than timing advance when partially including residual at the time of receiving first signal, when the signal TA adjusts granularity；

Adjustment unit, for adjusting first clock according to the clock jitter.

48. terminal according to claim 47, which is characterized in that partially further include timing advance adjusted value Δ when the signal TA, the Δ TA are the integral multiple that the TA adjusts granularity.

49. terminal according to claim 48, which is characterized in that further include:

Storage unit, for storing timing advance TA；

The adjustment unit is also used to, and adjusts the TA according to the Δ TA.

50. the terminal according to claim 48 or 49, which is characterized in that the receiving unit is also used to:

Receive the timing advance order Timing Advance Command that the access network equipment is sent, the timing advance life The Δ TA is carried in order.

51. the terminal according to claim 48 or 49, which is characterized in that the receiving unit is specifically used for:

Receive the timing advance order Timing Advance Command that the access network equipment is sent, the timing advance life The clock jitter and the Δ TA are carried in order.

52. terminal according to claim 47, which is characterized in that the terminal includes storage unit, the storage unit In be stored with timing advance TA, before the clock jitter that the receiving unit receives that the access network equipment is sent, the hair Unit is sent to be also used to:

The TA is sent to the access network equipment, the TA calculates the clock jitter for the access network equipment.

53. terminal according to claim 47, which is characterized in that the terminal includes storage unit, the storage unit In be stored with timing advance TA, carry the TA in first signal.

54. terminal according to claim 47, which is characterized in that carry second moment in first signal Value.

55. terminal according to claim 47, which is characterized in that the transmission unit is specifically used for:

Second signal is sent to the access network equipment, carries second moment value in the second signal.

56. terminal according to claim 47, which is characterized in that request mark is carried in first signal, it is described Request mark requests the clock jitter to the access network equipment for the terminal.

57. a kind of access network equipment characterized by comprising

Receiving unit, for receiving the first signal and the second moment value of terminal transmission, second moment value indicates the end At the time of end sends first signal；

Computing unit, for according to partially and the first moment value, calculating clock jitter when second moment value, signal, described the At the time of one moment value indicates that the access network equipment receives first signal, the clock jitter is to configure in the terminal The first clock and the access network equipment in time difference between the second clock that configures, when signal includes residual partially When inclined Δ t, the absolute value of the Δ t is less than timing advance TA and adjusts granularity, and the clock jitter adjusts institute for the terminal State the first clock；

Transmission unit, for the clock jitter to be sent to the terminal.

58. access network equipment according to claim 57, which is characterized in that partially further include timing advance TA when the signal Adjusted value Δ TA, the Δ TA are the integral multiple that the TA adjusts granularity.

59. access network equipment according to claim 58, which is characterized in that the transmission unit is also used to:

To the terminal transmission timing advance command Timing Advance Command, carried in the timing advance order The Δ TA.

60. access network equipment according to claim 58, which is characterized in that the transmission unit is specifically used for:

To the terminal transmission timing advance command Timing Advance Command, carried in the timing advance order The clock jitter and the Δ TA.

61. according to the described in any item access network equipments of claim 57-60, which is characterized in that the computing unit according to Inclined when first moment value, second moment value and signal, before calculating clock jitter, the receiving unit is also used to:

Receive the timing advance TA that the terminal is sent；

The computing unit is specifically used for:

Inclined and described TA, calculates the clock jitter when according to first moment value, second moment value, the signal.

62. according to the described in any item access network equipments of claim 57-60, which is characterized in that carried in first signal There is timing advance TA, the computing unit is specifically used for:

Inclined and described TA, calculates the clock jitter when according to first moment value, second moment value, the signal.

63. access network equipment according to claim 57, which is characterized in that carry described second in first signal Moment value.

64. access network equipment according to claim 57, which is characterized in that the receiving unit is specifically used for:

The second signal that the terminal is sent is received, carries second moment value in the second signal.

65. a kind of clock system, which is characterized in that including such as described in any item terminals of claim 33-40 or 47-56 and such as The described in any item access network equipments of claim 41-46 or 57-64.