CN110351823A - The method and apparatus of communication - Google Patents

The method and apparatus of communication Download PDF

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Publication number
CN110351823A
CN110351823A CN201810291180.1A CN201810291180A CN110351823A CN 110351823 A CN110351823 A CN 110351823A CN 201810291180 A CN201810291180 A CN 201810291180A CN 110351823 A CN110351823 A CN 110351823A
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CN
China
Prior art keywords
terminal device
time
network equipment
information
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810291180.1A
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Chinese (zh)
Inventor
温容慧
吕永霞
宋兴华
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201810291180.1A priority Critical patent/CN110351823A/en
Priority to PCT/CN2019/078933 priority patent/WO2019192322A1/en
Publication of CN110351823A publication Critical patent/CN110351823A/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
    • H04J3/0658—Clock or time synchronisation among packet nodes
    • H04J3/0661—Clock or time synchronisation among packet nodes using timestamps
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0682—Clock or time synchronisation in a network by delay compensation, e.g. by compensation of propagation delay or variations thereof, by ranging
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L7/00—Arrangements for synchronising receiver with transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay

Abstract

This application provides a kind of communication means and communication devices, it include: that terminal device passes through the first channel receiving time information, first channel is broadcast channel and/or control channel, or broadcast channel and/or data channel, wherein, temporal information includes first time information and the second temporal information, and first time information indicates that the network equipment sends the first moment of the first reference signal, and the second temporal information indicates that the network equipment receives the second moment of the second reference signal；According to the first moment, the second moment, third moment and the 4th moment, determine the time deviation between terminal device and the network equipment, at the time of the third moment is that terminal device receives the first reference signal, at the time of the 4th moment was that terminal device sends the second reference signal；Clock is corrected according to time deviation, realizes transmission time information in radio systems, so that periodically accurate acquisition time information, carries out time complexity curve, improve user experience.

Description

The method and apparatus of communication
Technical field
This application involves the communications fields, and more particularly, to a kind of method and apparatus for time synchronization.
Background technique
Institute of Electrical and Electric Engineers (institute of electrical and electronics Engineers, IEEE) 1588 agreements full name be " the precision interval clock synchronous protocol standard of network measure and control system ", A kind of Precision Time Protocol (precision time protocol, PTP) is defined, its basic function is to make distributed lead to Communication network can have stringent Timing Synchronization, and the synchronous function of clock can be realized by way of application layer data packet interaction Energy.In practical applications, IEEE1588 is a kind of master-slave synchronisation system.For example, synchronous with terminal device in the network equipment Cheng Zhong, network equipment periodicity issuing time sync message and timestamp information, terminal device pass through between the network equipment Message interaction obtains relevant time synchronization message and timestamp information, and calculates the line between the network equipment and terminal device Road time delay and time difference.Then the terminal device time is adjusted using the time difference, so that the network equipment be made to set with terminal The standby time is consistent.
But IEEE 1588 is the clock synchronization scheme designed for the application layer of cable network, for following wireless Communication network, 1588 synchronization scheme of IEEE of application layer and the compatibility of cordless communication network underlying protocol are bad.In addition, base The running time-frequency resource of wireless network, and wireless network cannot be efficiently utilized in 1588 synchronization scheme of IEEE of application layer data packet Data packet dispatching also cause 1588 process of IEEE not smooth.Therefore, directly by 1588 synchronization scheme of IEEE and wireless network High-precision timing synchronization performance can not be provided by combining.
Summary of the invention
The application provides a kind of communication means and communication device, and a kind of transmission time information can be provided for wireless system Method, can periodically accurate acquisition time information, carry out time complexity curve, improve user experience.
In a first aspect, providing a kind of communication means, comprising:
Terminal device passes through the first channel from network equipment receiving time information, wherein when the temporal information includes first Between information and the second temporal information, the first time information be used to indicate the network equipment to the terminal device send first reference First moment of signal, second temporal information are used to indicate the second reference that the network equipment receives terminal device transmission Second moment of signal；
The terminal device determines the terminal according to first moment and the second moment and third moment and the 4th moment Time deviation between equipment and the network equipment, when which is that the terminal device receives first reference signal It carves, at the time of the 4th moment was that the terminal device sends second reference signal；
The terminal device corrects clock according to the time deviation；
First channel is broadcast channel and/or control channel or first channel is broadcast channel and/or data letter Road.
Based on the above-mentioned technical proposal, it can be realized in a wireless communication system, pass through broadcast channel, control channel or data Channel carrys out transmission time information, and terminal device can calculate time deviation Δ by receiving the temporal information that the network equipment is sent T guarantees that the time deviation between terminal device and the network equipment is being to correct clock according to the time deviation Δ T It unites in coverage.A kind of method of transmission time information is provided for wireless system in the embodiment of the present application simultaneously, so that eventually End equipment can periodically accurate acquisition time information, thus according to temporal information calculate time deviation Δ T, periodically correct Clock improves user experience.
With reference to first aspect, in certain implementations of first aspect, which passes through the first channel from network Equipment receiving time information, comprising: the terminal device is believed by the first channel from network equipment receiving time within multiple periods Breath.
The network equipment can be the terminal equipment configuration continuous period, and each period in multiple period can send institute Temporal information is stated, when terminal device receives within the period 1 in the sending cycle of multiple temporal informations from the network equipment Between information, wherein the period 1 is any one period in the sending cycle of the multiple temporal information, and described One period included the third moment and the 4th moment.In i.e. each period, terminal device is receiving the first reference signal The Shi Jilu time of reception (beating timestamp), once the sending instant for recording or setting when sending the second reference signal (was beaten Timestamp) it is primary；The sending instant (beating timestamp) that the network equipment is recorded or set when sending the first reference signal once, It is primary that the time of reception (beating timestamp) is recorded when receiving the second reference signal.With reference to first aspect with above-mentioned implementation, In certain possible implementations, the duration of the period 1 in multiple period is the sending cycle of first reference signal N times of duration, N is positive integer, which is any one period in multiple period.
Optionally, first reference signal can be primary synchronization signal (Primary Synchronization signal, PSS), secondary synchronization signal (Secondary Synchronization signal, SSS)；First reference signal can also be with Track reference signal (Tracing reference signal, TRS), channel state information reference signals (Channel State Information-Reference Signal, CSI-RS), demodulated reference signal (Demodulation reference Signal, DMRS) etc. other physical signals etc..
Optionally, which can be channel state information reference signals (Channel State Information-Reference Signal, CSI-RS), demodulated reference signal (Demodulation reference Signal, DMRS) etc. other physical signals etc..
The network equipment will periodically send first time information to terminal device, the network equipment need to configure transmission this The period of one temporal information, and the period is sent to terminal device, the period that terminal device receives the first time information matches Confidence breath.
The network equipment is that the temporal information transmission cycle of each terminal equipment configuration can be different, specifically can be by net Network equipment is determined according to terminal capability.Such as different temporal informations is configured according to the clock devices accuracy of terminal device Transmission cycle, clock devices terminal device with high accuracy can keep longer time local clock ability time of occurrence deviation to be greater than essence Degree requires, then and the of the terminal device greater than low precision that the sending cycle of the first time information of the terminal device can be set The sending cycle of one temporal information.If certain terminal device is higher than other terminal devices, such as other ends to time deviation requirement End equipment requires time deviation within 1us, which requires in 0.1us, then the period of the terminal device needs to be arranged It is synchronous just to carry out clock compared with short cycle.
Optionally, as the period of first time information and the period of the first reference signal can be, it is also possible to not The same.As shown in figure 5, show 4 the first reference signals period and 2 first time information T1Period, i.e., The period of one reference signal is first time information T12 times of period, it is, of course, also possible to be any other positive integer times, The embodiment of the present application does not limit.
With reference to first aspect with above-mentioned implementation, in certain possible implementations, terminal device passes through the first letter Road is from network equipment receiving time information, comprising:
The terminal device passes through the first channel from network equipment receiving time information within the first period, wherein this first Period include the third moment in the period 1 before K time quantum, K is integer；And/or
First period includes T time quantum after the third moment in the period 1, and T is integer.
Specifically, the first period can be K subframe before sending the first reference signal or time slot and the first reference signal It is sent in T subframe or slot range afterwards, wherein K, T are integers, can be and are determined or mentioned according to power system capacity by the network equipment Preceding definition.
With reference to first aspect with above-mentioned implementation, in certain possible implementations, each temporal information includes Third temporal information and the 4th temporal information, when which includes that the time is greater than or equal to first in the temporal information Between threshold value part, the 4th temporal information include in the temporal information time be less than the first time threshold part.
With reference to first aspect with above-mentioned implementation, in certain possible implementations, which is wide Broadcast the duration of the sending cycle of signal update period or paging signal.
With reference to first aspect with above-mentioned implementation, in certain possible implementations, terminal device passes through the first letter Road is from network equipment receiving time information, comprising:
The terminal device receives the third temporal information from the network equipment by broadcast channel, by control channel and/ Or data channel receives the 4th temporal information from the network equipment.
Specifically, the precision of temporal information is different.It, can be according to different time precisions by order to save signaling overheads One temporal information is divided into third temporal information and the 4th temporal information, and the third temporal information includes in the temporal information Time be greater than or equal to first time threshold part, the 4th temporal information include in the temporal information time be less than institute State the part of first time threshold.
For example, first time information is divided into coarse-grain according to regular hour threshold value (such as first time threshold) (such as third temporal information) and fine granularity (such as the 4th temporal information) two parts.Coarse-grain (such as third temporal information) and thin Granularity (such as the 4th temporal information) two parts, coarse-grain (such as third temporal information) are sent, fine grained by broadcast channel Degree (such as the 4th temporal information) is sent by unicast, such as control channel or data channel are sent.Due to coarseness temporal information (such as third temporal information) renewal frequency is not high, does not need frequently to send, therefore, be sent by broadcast channel, terminal device exists When periodic receipt fine granularity (such as the 4th temporal information), coarseness temporal information (such as third time of broadcast channel is obtained Information).It thus can achieve the purpose for saving signaling overheads, unicast can be saved in this way to each terminal transmission time information Bits number, to save signaling overheads.
Optionally, which receives second temporal information from the network equipment before the third moment, this The first time information is received from the network equipment after three moment；Or the terminal device after the third moment from the network equipment Receive the first time information and second temporal information.With reference to first aspect with above-mentioned implementation, in certain possible realities In existing mode, terminal device passes through the first channel from network equipment receiving time information, comprising:
The terminal device receives the first time information from the network equipment before the 4th moment, the 4th moment it Second temporal information is received from the network equipment afterwards；Or
The terminal device receives the first time information and second time letter from the network equipment after the 4th moment Breath.
Optionally, terminal device only needs to obtain (T1+T4) information can calculate time deviation, without point It Huo Qu not T1And T4, by taking the first reference signal is sent earlier than the second reference signal as an example, i.e., the described terminal device can be described the The first time information is received from the network equipment before four moment (sending instant of the second reference signal), at the described 4th It carves (sending instant of the second reference signal) and receives second temporal information from the network equipment later；Or the terminal device exists The first time information and described is received from the network equipment after 4th moment (sending instant of the second reference signal) Second temporal information.
In this achievable embodiment, it is only necessary to pass through a time letter between the network equipment and terminal device Temporal information is notified terminal device to realize by the interaction of order, can save the expense of signaling.
Second aspect provides a kind of communication means characterized by comprising
The network equipment determines the first channel of transmission time information, which is broadcast channel and/or control channel, Or first channel is broadcast channel and/or data channel；
The network equipment is by first channel to terminal device transmission time information, wherein the temporal information includes the One temporal information and the second temporal information, the first time information are used to indicate the network equipment and send first to the terminal device First moment of reference signal, second temporal information are used to indicate second that the network equipment receives terminal device transmission Second moment of reference signal.
In conjunction with second aspect, in certain possible implementations, which is set by first channel to terminal Standby transmission time information, comprising:
The network equipment passes through first channel to terminal device transmission time information within multiple periods.
In conjunction with second aspect and above-mentioned implementation, in certain possible implementations, in multiple period first The duration in period is N times of the duration of the sending cycle of first reference signal, and N is positive integer, which is multiple Any one period in period.
In conjunction with second aspect and above-mentioned implementation, in certain possible implementations, the network equipment by this One channel is to terminal device transmission time information, comprising:
The network equipment is within the first period by first channel to terminal device transmission time information, wherein this One period include the third moment in the period 1 before K time quantum, K is integer；And/or
First period includes T time quantum after the third moment in the period 1, and T is integer.
In conjunction with second aspect and above-mentioned implementation, in certain possible implementations, each temporal information includes Third temporal information and the 4th temporal information, when which includes that the time is greater than or equal to first in the temporal information Between threshold value part, the 4th temporal information include in the temporal information time be less than the first time threshold part.
In conjunction with second aspect and above-mentioned implementation, in certain possible implementations, which is wide Broadcast the duration of the sending cycle of signal update period or paging signal.
In conjunction with second aspect and above-mentioned implementation, in certain possible implementations, the network equipment by this One channel is to terminal device transmission time information, comprising:
The network equipment sends the third temporal information to the terminal device by broadcast channel, by control channel and/ Or data channel sends the 4th temporal information to the terminal device.
In conjunction with second aspect and above-mentioned implementation, in certain possible implementations, the network equipment by this One channel is to terminal device transmission time information, comprising:
The network equipment sends the first time information in the forward direction at the 4th moment terminal device, at the 4th moment Rear send second temporal information to terminal device；Or
The terminal device sends the first time information and second time to the terminal device in the rear of the 4th moment Information.
The third aspect provides a kind of communication device characterized by comprising
Transmit-Receive Unit, for by the first channel from network equipment receiving time information, wherein the temporal information includes the One temporal information and the second temporal information, the first time information are used to indicate the network equipment and send first to the terminal device First moment of reference signal, second temporal information are used to indicate second that the network equipment receives terminal device transmission Second moment of reference signal；
Processing unit, for determining the end according to first moment and the second moment and third moment and the 4th moment Time deviation between end equipment and the network equipment, the third moment are that the terminal device receives first reference signal Moment, at the time of the 4th moment was that the terminal device sends second reference signal；
The processing unit is also used to correct clock according to the time deviation；
First channel is broadcast channel and/or control channel or first channel is broadcast channel and/or data letter Road.
The Transmit-Receive Unit is used to pass through within multiple periods the first channel from network equipment receiving time information.
In conjunction with the third aspect, in certain possible implementations, the duration of the period 1 in multiple period is this N times of the duration of the sending cycle of first reference signal, N are positive integer, which is any one in multiple period A period.
In conjunction with the third aspect and above-mentioned implementation, in certain possible implementations, which is used for the Pass through the first channel in one period from network equipment receiving time information, wherein first period includes in the period 1 K time quantum before the third moment, K are integer；And/or
First period includes T time quantum after the third moment in the period 1, and T is integer.
In conjunction with the third aspect and above-mentioned implementation, in certain possible implementations, each temporal information includes Third temporal information and the 4th temporal information, when which includes that the time is greater than or equal to first in the temporal information Between threshold value part, the 4th temporal information include in the temporal information time be less than the first time threshold part.
In conjunction with the third aspect and above-mentioned implementation, in certain possible implementations, which is wide Broadcast the duration of the sending cycle of signal update period or paging signal.
In conjunction with the third aspect and above-mentioned implementation, in certain possible implementations, the Transmit-Receive Unit is for passing through Broadcast channel receives the third temporal information from the network equipment, by control channel and/or data channel from the network equipment Receive the 4th temporal information.
In conjunction with the third aspect and above-mentioned implementation, in certain possible implementations, which is used at this Receive the first time information from the network equipment before 4th moment, after the 4th moment from the network equipment receive this second Temporal information；Or the Transmit-Receive Unit receives the first time information and second time from the network equipment after the 4th moment Information
Fourth aspect provides a kind of communication device characterized by comprising
Processing unit, for determining the first channel of transmission time information, which is broadcast channel and/or control Channel or first channel are broadcast channel and/or data channel；
Transmit-Receive Unit, for by first channel to terminal device transmission time information, wherein the temporal information includes First time information and the second temporal information, the first time information are used to indicate the network equipment and send the to the terminal device First moment of one reference signal, second temporal information are used to indicate that the network equipment receives terminal device transmission Second moment of two reference signals.
In conjunction with fourth aspect, in certain possible implementations, which is used within multiple periods by being somebody's turn to do First channel is to terminal device transmission time information.
In conjunction with fourth aspect and above-mentioned implementation, in certain possible implementations, in multiple period first The duration in period is N times of the duration of the sending cycle of first reference signal, and N is positive integer, which is multiple Any one period in period.
In conjunction with fourth aspect and above-mentioned implementation, in certain possible implementations, which is used for the Pass through first channel in one period to terminal device transmission time information, wherein first period includes in the period 1 The third moment before K time quantum, K is integer；And/or
First period includes T time quantum after the third moment in the period 1, and T is integer.
In conjunction with fourth aspect and above-mentioned implementation, in certain possible implementations, each temporal information includes Third temporal information and the 4th temporal information, when which includes that the time is greater than or equal to first in the temporal information Between threshold value part, the 4th temporal information include in the temporal information time be less than the first time threshold part.
In conjunction with fourth aspect and above-mentioned implementation, in certain possible implementations, which is wide Broadcast the duration of the sending cycle of signal update period or paging signal.
In conjunction with fourth aspect and above-mentioned implementation, in certain possible implementations, the Transmit-Receive Unit is for passing through Broadcast channel sends the third temporal information to the terminal device, by control channel and/or data channel to the terminal device Send the 4th temporal information.
In conjunction with fourth aspect and above-mentioned implementation, in certain possible implementations, which is used at this The forward direction at the 4th moment terminal device sends the first time information, the 4th moment it is rear to terminal device send this Two temporal informations；Or the Transmit-Receive Unit the 4th moment it is rear to the terminal device send the first time information and this second Temporal information.
5th aspect, provides a kind of terminal device, which, which has, realizes above-mentioned first aspect and first aspect The function of terminal device behavior in any one possible implementation method design.The function can be by hardware realization, can also To execute corresponding software realization by hardware.The hardware or software include one or more moulds corresponding with above-mentioned function Block.The module can be software and/or hardware.
It include receiver and place in the structure of the terminal device in certain possible implementations in conjunction with the 5th aspect Device is managed, the receiver is configured as the hair for supporting the terminal device to receive the temporal information that the network equipment is terminal equipment configuration Send period, receiving time information；The processor controlling terminal equipment is according to the transmission of the received temporal information of the receiver Period, received temporal information determine time deviation, correct clock according to time deviation.
6th aspect, provides a kind of network equipment, including transceiver, processor and memory.The processor is for controlling Transceiver receiving and transmitting signal processed, the memory is for storing computer program, and the processor is for calling and running from memory The computer program, so that the network equipment executes in above-mentioned second aspect and second aspect any one possible implementation Method in any one possible implementation.
7th aspect, provides a kind of network entity, which can be the network entity in core network, such as Mobility management entity MME or gateway (such as gateway SGW and/or packet data gateway PGW).The network entity can also To be the network entity in information management system IMS.The type of service of network entity UE for identification, and the UE that will identify that The information of business is notified to base station, to support UE and base station cooperate to realize first aspect and second aspect in above-mentioned communication means The scheme of design.
Eighth aspect, the embodiment of the invention provides a kind of communication system, which includes the above-mentioned third aspect and third The fourth aspect of the possible terminal device UE sum of any one in any one possible implementation of aspect and four directions The possible network equipment (such as base station) of any one in any one possible implementation of face；Alternatively, the system packet Include network entity described in base station described in above-mentioned fourth aspect and eighth aspect；Alternatively, the system includes the above-mentioned third aspect Network entity described in base station described in the UE, fourth aspect and eighth aspect.
9th aspect, provide a kind of communication device, the communication device can be designed for the above method in terminal device, Or for the chip in terminal device is arranged in.The communication device includes: processor, is coupled with memory, can be used for executing and deposit Instruction in reservoir, terminal device in any one possible implementation to realize above-mentioned first aspect and first aspect Performed method.Optionally, which further includes memory.Optionally, which further includes communication interface, place Reason device is coupled with communication interface.
Tenth aspect, provide a kind of communication device, the communication device can for it is above-mentioned be method design in network set It is standby, or for chip in the network device is arranged.The communication device includes: processor, is coupled with memory, can be used for executing Instruction in memory, to realize network in any one possible implementation in above-mentioned second aspect and second aspect Method performed by equipment.Optionally, which further includes memory.Optionally, which further includes that communication connects Mouthful, processor is coupled with communication interface.
On the one hand tenth, provides a kind of computer program product, the computer program product includes: computer program Code, when the computer program code is run on computers, so that computer executes the method in above-mentioned various aspects.
12nd aspect, provides a kind of computer-readable medium, and the computer-readable medium storage has program code, When the computer program code is run on computers, so that computer executes the method in above-mentioned various aspects.
13rd aspect, provides a kind of chip system, which includes processor, for supporting that terminal device is real Function involved in existing above-mentioned aspect receives for example, generating, and determines, sends, or number involved in the processing above method According to and/or information.In a kind of possible design, the chip system further includes memory, the memory, for saving end The necessary program instruction of end equipment and data.The chip system can be made of chip, also may include that chip is discrete with other Device.
Fourteenth aspect provides a kind of chip system, which includes processor, for supporting that the network equipment is real Function involved in existing above-mentioned aspect receives for example, generating, and determines, sends, or number involved in the processing above method According to and/or information.In a kind of possible design, the chip system further includes memory, the memory, for saving end The necessary program instruction of end equipment and data.The chip system can be made of chip, also may include that chip is discrete with other Device.
Detailed description of the invention
Fig. 1 is the schematic diagram of wireless communication system provided by the embodiments of the present application.
Fig. 2 is the synchronous flow diagram of clock provided by the embodiments of the present application.
Fig. 3 is the schematic diagram of an example time complexity curve provided by the embodiments of the present application.
Fig. 4 is the flow chart of an example time complexity curve provided by the embodiments of the present application.
Fig. 5 is an example temporal information period schematic diagram provided by the embodiments of the present application.
Fig. 6 is another example temporal information period schematic diagram provided by the embodiments of the present application.
Fig. 7 is the flow chart of another example time complexity curve provided by the embodiments of the present application.
Fig. 8 is the schematic diagram of another example time complexity curve provided by the embodiments of the present application.
Fig. 9 is an example schematic block diagram of communication device provided by the embodiments of the present application.
Figure 10 is the another illustrative block diagram of communication device provided by the embodiments of the present application.
Figure 11 is an example structural schematic diagram of terminal device provided by the embodiments of the present application.
Figure 12 is the another example structural schematic diagram of terminal device provided by the embodiments of the present application.
Figure 13 is an example structural schematic diagram of the network equipment provided by the embodiments of the present application.
Figure 14 is the another example structural schematic diagram of the network equipment provided by the embodiments of the present application.
Specific embodiment
Below in conjunction with attached drawing, the technical solution in the application is described.
The term " component " that uses in the present specification, " module ", " system " etc. for indicate computer-related entity, Hardware, firmware, the combination of hardware and software, software or software in execution.For example, component can be but not limited to, handling Process, processor, object, executable file, execution thread, program and/or the computer run on device.By diagram, counting Calculating the application run in equipment and calculating equipment can be component.One or more components can reside in process and/or execution In thread, component can be located on a computer and/or be distributed between two or more computers.In addition, these components It can be executed from the various computer-readable mediums for being stored with various data structures above.Component can for example according to have one or Multiple data groupings (such as from two components interacted with local system, distributed system and/or internetwork another component Data, such as the internet by signal and other system interactions) signal communicated by locally and/or remotely process.
It should be understood that the division of mode, situation, classification and embodiment in the embodiment of the present application is merely to the side described Just, special restriction should not be constituted, the feature in various modes, classification, situation and embodiment in the case of no contradiction may be used To combine.
It should also be understood that applying for that " first ", " second " and " third " in embodiment, should not be to the application only for distinguishing Constitute any restriction.
It should also be understood that the size of the serial number of each process is not meant to execute sequence in the various embodiments of the application It is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present application Journey constitutes any restriction.
It should also be understood that the size of the serial number of each process is not meant to execute sequence in the various embodiments of the application It is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present application Journey constitutes any restriction.
It should be noted that " agreement " can refer to the standard agreement of the communications field, such as can wrap in the application implementation It includes LTE protocol, NR agreement and applied to the related protocol in following communication system, the application is not limited this.
It should also be noted that, the embodiment of the present application in, " pre-defined " can by equipment (e.g., including terminal Equipment and the network equipment) in pre-save corresponding code, table or other may be used to indicate the mode of relevant information to realize, The application for its concrete implementation mode without limitation.For example pre-defined it can refer to defined in agreement.
It should also be noted that, noun " network " and " system " are often used alternatingly, but this field in the embodiment of the present application Technical staff be understood that its meaning.Information (information), signal (signal), message (message), channel (channel) it can use with sometimes, it is noted that when not emphasizing its difference, meaning to be expressed is consistent. " (of) ", " corresponding (corresponding, relevant) " and " corresponding (corresponding) " can be mixed sometimes With, it is noted that when not emphasizing its difference, meaning to be expressed is consistent.
It should also be noted that, in the embodiment of the present application, " reporting " and " feedback " is often used alternatingly, but this field Technical staff is understood that its meaning.For example, for terminal device, reporting status information of channel (Channel State Information, CSI) and feedback CSI substantially can be that CSI is sent by physical uplink channel.Therefore, in the application In embodiment, when not emphasizing its difference, meaning to be expressed is consistent.
It should be noted "and/or", describe the incidence relation of affiliated partner, indicate 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.The general table of character "/" Show that forward-backward correlation object is a kind of relationship of "or"."at least one" refers to one or more；" at least one in A and B It is a ", it is similar to " A and/or B ", describes the incidence relation of affiliated partner, indicate may exist three kinds of relationships, for example, in A and B At least one, can indicate: individualism A, exist simultaneously A and B, these three situations of individualism B.It is detailed below in conjunction with attached drawing Describe bright technical solution provided by the present application in detail.
The technical solution of the embodiment of the present application can be applied to various communication systems, such as: global system for mobile telecommunications (Global System of Mobile communication, GSM) system, CDMA (Code Division Multiple Access, CDMA) system, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) system System, General Packet Radio Service (General Packet Radio Service, GPRS), long term evolution (Long Term Evolution, LTE) system, LTE frequency division duplex (Frequency Division Duplex, FDD) system, LTE time division duplex (Time Division Duplex, TDD), Universal Mobile Communication System (Universal Mobile Telecommunication System, UMTS), global interconnection inserting of microwave (Worldwide Interoperability For Microwave Access, WiMAX) communication system, following the 5th generation (5th Generation, 5G) system or new nothing Line (New Radio, NR) etc..
Fig. 1 is the schematic diagram of the wireless communication system 100 suitable for the embodiment of the present application.The application is implemented for ease of understanding The communication system for being suitable for the embodiment of the present application is described in detail shown in Fig. 1 first for example for communication system 100.Such as Fig. 1 Shown, which may include one or more access network equipments, for example, access network equipment shown in FIG. 1 110；The wireless communication system 100 can also include one or more terminal devices, for example, terminal device shown in FIG. 1 120, Terminal device 130 and terminal device 140；The wireless communication system 100 can also include equipment of the core network, for example, shown in FIG. 1 Equipment of the core network 130.The wireless communication system 100 can support cooperative multipoint transmission (Coordinated Multiple Points Transmission, CoMP), that is, multiple cells or multiple network equipments can cooperate with the data for participating in a terminal device to pass Defeated perhaps joint receives the data or multiple cells that terminal device is sent or multiple network equipments carry out cooperative scheduling or The molding of person's cooperative beam.Wherein, multiple cell may belong to the identical network equipment or the different network equipments, and can To be selected according to channel gain or path loss, received signal strength, reception signal instruction etc..
In the communication system 100, terminal device is wirelessly connected with wireless access network equipment, wireless access Net equipment is connect by wirelessly or non-wirelessly mode with equipment of the core network.Equipment of the core network and wireless access network equipment can be independence Different physical equipments, be also possible to for the logic function of the function of equipment of the core network and wireless access network equipment being integrated in together On one physical equipment, it can also be the function of being integrated with part equipment of the core network on a physical equipment and partial wirelessly connect The function of log equipment.Terminal device can be fixed position, be also possible to moveable.Fig. 1 is schematic diagram, the communication It can also include other network equipments in system 100, such as can also include wireless relay apparatus and wireless backhaul equipment etc..
Access network equipment is the network element in access net.In the communication system 100, access network equipment 110 can be for The equipment of mobile device communication, it should be appreciated that the access network equipment 110 can be any one equipment with radio transmission-receiving function Or may be disposed at the chip of the equipment, which includes but is not limited to: evolved node B (evolved Node B, eNB), nothing Line network controller (Radio Network Controller, RNC), node B (Node B, NB), base station controller (Base Station Controller, BSC), base transceiver station (Base Transceiver Station, BTS), Home eNodeB (example Such as, Home evolved NodeB or Home Node B, HNB), Base Band Unit (BaseBand Unit, BBU), Wireless Fidelity Access point (Access Point, AP) in (Wireless Fidelity, WIFI) system, wireless relay nodes, wireless backhaul Node, transfer point (transmission point, TP) transmit and receive point (transmission and reception Point, TRP) etc., it can also be 5G, e.g., NR, the gNB in system, or, transfer point (TRP or TP), base station in 5G system One or a set of (including mutiple antennas panel) aerial panel, alternatively, can also be the network node for constituting gNB or transfer point, Such as Base Band Unit (BBU), or, distributed unit (distributed unit, DU) etc..
In some deployment, gNB may include centralized unit (centralized unit, CU) and DU.GNB can be with Including radio frequency unit (radio unit, RU).CU realizes the partial function of gNB, and DU realizes the partial function of gNB, for example, CU is real Existing wireless heterogeneous networks (radio resource control, RRC), Paket Data Convergence Protocol (packet data Convergence protocol, PDCP) layer function, DU realize wireless spread-spectrum technology (radio link control, RLC), the function of media access control (media access control, MAC) and physics (physical, PHY) layer.Due to The information of rrc layer eventually becomes the information of PHY layer, alternatively, from the information transformation of PHY layer, thus, in this framework Under, high-level signaling, such as rrc layer signaling or PHCP layers of signaling, it is also assumed that being to be sent by DU, alternatively, being sent by DU+RU 's.It is understood that the network equipment can be CU node or DU node or the equipment including CU node and DU node.This Outside, CU can be divided into the network equipment in access net RAN, and CU can also be divided into core net (Core Network, CN) In the network equipment, herein with no restrictions.
In addition, in the embodiment of the present application, access network equipment provides service for cell, terminal device is used by the cell Transfer resource (for example, frequency domain resource, in other words, frequency spectrum resource) communicated with access network equipment, which, which can be, connects The corresponding cell of log equipment (such as base station), cell may belong to macro base station, also may belong to cell (Small cell) Corresponding base station, cell here may include: urban cells (Metro cell), Microcell (Micro cell), pico- Cell (Pico cell), Femto cell (Femto cell) etc., these cells are small with coverage area, transmission power is low The characteristics of, suitable for providing the data transport service of high-speed.
Equipment of the core network 130 can be connect with multiple access network equipments, for controlling access network equipment, and it is possible to will It, can be with for example, in the embodiment of the present application from the data distribution that network side (for example, internet) receives to access network equipment It is responsible for the network element (Mobility Management Entity function, MME) etc. of mobile management, the application includes It is not limited to this.
In the embodiment of the present application, the network equipment may include access network equipment 110 or equipment of the core network 130, the application Embodiment relates generally to communication and interaction between terminal device and the network equipment, for ease of description, hereafter sets access net Standby and equipment of the core network is referred to as the network equipment.
Terminal device 120 in the wireless communication system 100 be referred to as user equipment (user equipment, UE), access terminal, subscriber unit, subscriber station, movement station, mobile station, remote station, remote terminal, mobile device, user terminal, Terminal, wireless telecom equipment, user agent or user apparatus.Terminal device in embodiments herein can be mobile phone (mobile phone), tablet computer (Pad), the computer with radio transmission-receiving function, virtual reality (Virtual Reality, VR) terminal device, augmented reality (Augmented Reality, AR) terminal device, Industry Control (industrial Control the wireless terminal in), the wireless terminal in unmanned (self driving), tele-medicine (remote Medical the wireless terminal in wireless terminal, smart grid (smart grid), transportation safety (transportation in) Safety the wireless terminal in wireless terminal, smart city (smart city) in), in wisdom family (smart home) Wireless terminal etc..Embodiments herein to application scenarios without limitation.By aforementioned terminals equipment and settable in the application Terminal device is referred to as in the chip of aforementioned terminals equipment.
In addition, in the embodiment of the present application, terminal device can also be Internet of Things (Internet of Things, IoT) Terminal device in system, IoT are the important components of future information technology development, and technical characteristics are to lead to article The communication technology and network connection are crossed, thus realize man-machine interconnection, the intelligent network of object object interconnection.
It should be understood that in Fig. 1 only for ease of understanding, it is schematically shown that the network equipment and terminal device, but this should not be right The application constitutes any restriction, can also include the network equipment more or less in the wireless communication system, can also be with Including greater number of terminal device, the identical network equipment can be from the network equipment of different terminal equipment in communication, It can be different the network equipment, may be the same or different from the quantity of the network equipment of different terminal equipment in communication, The application does not limit this.
In addition, the communication system 100 can be PLMN network, D2D network, M2M network, IoT network, NB-IoT network or Other networks of person, Fig. 1 are the rough schematic view illustrated, and can also include other network equipments in network, not give picture in Fig. 1 Out.
The embodiment of the present application for ease of understanding, in the embodiment of the present application, with logical between base station eNB and terminal device UE It is specifically described for letter and interaction.
Fig. 2 is the synchronous flow diagram of clock.Centralized Controller of the network equipment 110 as terminal device 120 and 130, Time synchronization source can be provided for terminal device 120 and 130, i.e., to the transmission time information of terminal device 120 and 130, make cell Interior terminal device 120 and 130 is synchronous with the network equipment retention time, indirectly reach between terminal device 120 and 130 when Between synchronisation requirement.
In current industrial control field, when clock synchronizes mostly using cable network cooperation 1588 technology of IEEE completion Clock is synchronous.Fig. 3 is the schematic diagram of the interactive process 300 of time synchronization between the network equipment and terminal device.In conjunction with Fig. 2 and Fig. 3, Introduce the synchronizing process of 1588 agreement of IEEE in the related technology.
As shown in figure 3, the time service process of analogy IEEE 1588, carries out communication steps such as between the network equipment and terminal device Under:
1) initiation parameter that the network equipment 110 can be synchronous for 120 end configurable clock generator of terminal device.
2) S301, in the time point T of agreement1, the network equipment to terminal device send downlink time reference signal (for example, Synchronization signal), the network equipment 110 records the sending instant T of downlink time reference1, terminal device records downlink time reference letter Number time of reception T2。
3) S302, the network equipment is by timestamp information T1It is sent to terminal.
4) S303, at the time point of agreement, terminal device 120 sends upstream time reference signal to the network equipment 110, eventually The sending instant T of the record upstream time reference signal of end equipment 1203, the network equipment 110 records upstream time reference signal and connects Time receiving carves T4。
5) S304, the network equipment 110 is by timestamp information T4It is sent to terminal device 120.
6) S305, terminal device 120 is according to timestamp information T1、T2、T3And T4Local clock is calculated relative to the network equipment Time deviation Δ T, and local clock is corrected with this.The calculation formula of time deviation Δ T can be with are as follows:
Wherein, Δ T is time migration, for indicating the time difference between terminal device 120 and master clock.
Terminal device 120 can be according to the clock for the time deviation adjustment terminal device 120 being calculated, to set with network Standby 110, which carry out clock, synchronizes, and similarly, terminal device 130 is also synchronous with the progress clock of the network equipment 110, to also may be implemented Clock between terminal device is synchronous, such as the synchronization in Fig. 2 between terminal device 120 and terminal device 130.
Above process is the clock synchronization scheme designed for the application layer of cable network.It is wireless for following use The industrial control system of communication network is based on application layer data packet there are no the synchronization scheme is applied to cordless communication network 1588 synchronization scheme of IEEE cannot efficiently utilize wireless network running time-frequency resource.Further, since the clock device of terminal device The clocking error of part can increase with the time, it is necessary to periodically carry out time service amendment to terminal clock.Therefore, it is necessary to a kind of times 1588 synchronization scheme of IEEE can be combined with wireless network, be provided for wireless network high-precision by the synchronous method of information Clock synchronization scheme, to realize the deviation that terminal device and LA Management Room are effectively ensured in a wireless communication system in system In scope of design.
Present application example provides a kind of transmission method of temporal information, Lai Shixian in a wireless communication system the network equipment and The clock of terminal device is synchronous.
Fig. 4 is that the embodiment of the present application provides an example schematic flow chart of temporal information transmission method.This method 400 can be with Applied to above-mentioned wireless communication system 100, carried out in conjunction with the interaction schematic diagram in Fig. 3 between terminal device and the network equipment detailed Explanation, it should be appreciated that the embodiment of the present application is not limited to this.
As shown in figure 4, this method 400 includes the following contents.
In S410, for terminal device by the first channel from network equipment receiving time information, first channel is wide Broadcasting channel and/or control channel or first channel is broadcast channel and/or data channel, wherein the temporal information packet First time information and the second temporal information are included, the first time information is used to indicate the network equipment and sets to the terminal Preparation send the first moment of the first reference signal, and second temporal information is used to indicate the network equipment and receives the end Second moment of the second reference signal that end equipment is sent.
Specifically, in conjunction with the interaction schematic diagram between the network equipment of Fig. 3 and terminal device, in method 400, emphasis is first Introduce temporal information (first time information T1With the second temporal information T2) transmission process.First with the network equipment to terminal device Send first time information T1, terminal device receives first time information T1For be described in detail.
The network equipment periodically sends the first reference signal to terminal device, such as the network equipment is in T1Moment is to terminal Equipment sends the first reference signal, and terminal device is T at the time of receiving first reference signal2.Illustratively, first ginseng Examining signal can be primary synchronization signal (Primary Synchronization signal, PSS) or secondary synchronization signal (Secondary Synchronization signal, SSS)；First reference signal can also be track reference signal (Tracing reference signal, TRS), channel state information reference signals (Channel State Information-Reference Signal, CSI-RS) etc. other physical signals or demodulated reference signal (Demodulation Reference signal, DMRS), it should be appreciated that the embodiment of the present application is not limited to the example above.
Optionally, which can be channel state information reference signals (Channel State Information-Reference Signal, CSI-RS) or demodulated reference signal (Demodulation reference Signal, DMRS) or other physical signals, this embodiment of the present invention is not specifically limited.
Fig. 5 is that the embodiment of the present application provides an example schematic diagram for sending reference signal.As shown in figure 5, the network equipment period Property send the first reference signal, first reference signal is identified with reference signal (reference signal, RS) in figure.Scheming In a certain moment in each period, reference signal RS is sent to terminal device by the network equipment, and terminal device receives network and sets The reference signal RS that preparation is sent.
Firstly, the network equipment will first determine the reference point of first time information, i.e. timestamp reference point, when determining with which The temporal information at quarter is the temporal information of reference point.Terminal device also will first determine that the reference point of first time information, terminal are set It is standby to be known by the first reference signal that the network equipment is sent, it is also possible to know by way of pre-configuration, the application It's not limited to that for embodiment.
Optionally, timestamp reference point can be the first reference signal of network equipment periodicity sending cycle boundary or The boundary slot, character boundary, frame boundaries etc., the i.e. time reference 1 or time reference 2 identified in Fig. 5.Alternatively, according to Other fixation positions are determined as timestamp reference point by the period of first reference signal, it should be appreciated that the application is not limited to this.
When original position of the first reference signal RS in the period begins to send, it can be interpreted as first reference First character boundary of signal is exactly the initial position in period.
It is non-limiting as another example, after initial position of the first reference signal RS in the period sometime When point starts to send, it can first character boundary and the initial position in period for being interpreted as first reference signal do not weigh It closes.At this point, timestamp reference point can be first character boundary of first reference signal.As shown in fig. 6, being shown in figure The sending cycle of first reference signal, in any a cycle, the first reference signal from the position shown in the dotted line to Terminal device sends first symbol, can be using the initial position of first symbol of first reference signal as time reference Point 3 or time reference 4.
It should be understood that the network equipment will periodically send first time information to terminal device, the network equipment is needed to configure The period of the first time information is sent, and the period is sent to terminal device, terminal device receives the first time information Period assignment information.
The network equipment is that the temporal information transmission cycle of each terminal equipment configuration can be different, specifically can be by net Network equipment is determined according to terminal capability.Such as different temporal informations is configured according to the clock devices accuracy of terminal device Sending cycle is transmitted, clock devices terminal device with high accuracy can keep longer time local clock ability time of occurrence deviation big In required precision, the then terminal device greater than low precision that the sending cycle of the first time information of the terminal device can be set First time information sending cycle.If certain terminal device is higher than other terminal devices, such as its to time deviation requirement He requires time deviation within 1us by terminal device, which requires in 0.1us, then the period of the terminal device needs It is set as just carrying out clock synchronization compared with short cycle.
The network equipment can be the terminal equipment configuration continuous period, and each period in multiple period can be sent out The temporal information is sent, is believed within the period 1 in the sending cycle of multiple temporal informations from network equipment receiving time Breath, wherein the period 1 is any one period in the sending cycle of the multiple temporal information, and described first week Phase includes the third moment and the 4th moment.In i.e. each period, terminal device is remembered when receiving the first reference signal Record the time of reception (beating timestamp) once, the sending instant for recording or setting when sending the second reference signal (beats the time Stamp) it is primary；The sending instant (beating timestamp) that the network equipment is recorded or set when sending the first reference signal once, is connecing It is primary that the time of reception (beating timestamp) is recorded when receiving the second reference signal.
Optionally, as the period of first time information and the period of the first reference signal can be, it is also possible to not The same.As shown in figure 5, show 4 the first reference signals period and 2 first time information T1Period, i.e., The period of one reference signal is first time information T12 times of period, it is, of course, also possible to be any other positive integer times, The embodiment of the present application does not limit.Fig. 6 shows the period identical feelings in the period and the first reference signal of first time information Condition can all send the first reference signal and first time information that is, within each period.
Timestamp reference point can be the cycle boundary of first time information, such as the time reference 1 and time ginseng in Fig. 5 Examination point 2.When the period of first time information is identical with the period of the first reference signal, the cycle boundary of first time information and The cycle boundary of first reference signal is to be overlapped.It is not identical when the period of first time information and the period of the first reference signal When, the period of the first reference signal as escribed above is first time information T1Period positive integer times, then timestamp join Examination point can be first character boundary of first time information, time reference 3 or time reference 4 as shown in FIG. 6.It answers Understand, it's not limited to that for the embodiment of the present application.
After the sending cycle that timestamp reference point and first time information has been determined, the network equipment only will send first In the period of temporal information, logging timestamp reference point information (i.e. first time information).
The network equipment is in T1Moment sends the first reference signal to terminal device, and terminal device is in T2Reception to this One reference signal, terminal device can play stamp by itself to record the time of reception T of the first reference signal2, but terminal device It can not know T at the time of the network equipment sends first reference signal1, it is therefore desirable to when by the transmission of first reference signal Carve T1It is sent to terminal device, i.e. our first time information above-mentioned.
Next, the network equipment needs timestamp reference point information (i.e. first time information) being sent to terminal device, Terminal device will receive timestamp reference point information T1(i.e. first time information).Next, specifically in conjunction with Fig. 3 to Fig. 8 How the bright network equipment is by timestamp reference point information T1It is sent to terminal device.
Optionally, the network equipment is by the first channel to terminal device transmission time information, and correspondingly, terminal device passes through For first channel from network equipment receiving time information, first channel is broadcast channel and/or control channel or described One channel is broadcast channel and/or data channel.
Specifically, following a variety of implementations are enumerated herein, and the network equipment can be using appointing in following various ways A kind of mode of anticipating sends the temporal information to terminal device, specifically includes:
1) network equipment can any one channel in control channel or data channel send the timestamp reference point Information T1(i.e. first time information), correspondingly, terminal device is received in any one of control channel or data channel channel Timestamp reference point information T1(i.e. first time information).
2) network equipment can send timestamp reference point information T in control channel and data channel simultaneously1(i.e. first Temporal information), correspondingly, terminal device is in control channel and data channel reception timestamp reference point information T1(i.e. first Temporal information).
3) network equipment can send timestamp reference point information T in broadcast channel1(i.e. first time information), accordingly , terminal device receives timestamp reference point information T in broadcast channel1(i.e. first time information).
4) network equipment can send timestamp reference point information T in broadcast channel and control channel1(i.e. at the first time Information), correspondingly, terminal device receives timestamp reference point information T in broadcast channel and control channel1(i.e. at the first time Information).
5) network equipment can send timestamp reference point information T in broadcast channel and data channel1(i.e. at the first time Information), correspondingly, terminal device is in broadcast channel and data channel reception timestamp reference point information T1(i.e. at the first time Information).
It specifically,, can be according to different time precisions in order to save signaling overheads because the precision of temporal information is different First time information is divided into third temporal information and the 4th temporal information, the third temporal information includes the time letter In breath the time be greater than or equal to first time threshold part, the 4th temporal information include in the temporal information time it is small In the part of the first time threshold.
For example, first time information is divided into coarse-grain (according to regular hour threshold value (first time threshold) Three temporal informations) and fine granularity (the 4th temporal information) two parts.The temporal information of transmission is generally absolute time information, i.e., 40 divide 50 seconds 50 milliseconds of 50 nanoseconds of 50 microsecond when may is that 1 day 12 January in 2000.Or there are also higher required precisions, such as Reach nanosecond or Ts magnitude.Ts is the systematic sampling time, and in NR system, 15kHz subcarrier spacing was about 33 nanoseconds.
Specifically, it is 1000ms that first time threshold, which can be set, if first time information is greater than or equal to 1000ms, The part for being greater than 1000ms in the first time information is then divided into third temporal information, i.e., above-mentioned coarse-grain time letter Breath；Correspondingly, by the part for being less than 1000ms in the first time information is divided into the 4th temporal information, i.e., above-mentioned fine grained Spend temporal information.It should be understood that the application is not limited to this.
Divided first time information, below simple computation send first time information need bits number.
As shown in table 1, it is sent to 1ns magnitude and needs about 60bits, be sent to 1Ts magnitude and about need 56bits；In cell There are multiple terminals to need to carry out time synchronization, it is necessary to which each user sends corresponding bits information, this opens cell signaling It sells very big.
Table 1
Range Bit number The summation of bit number
Year 4 4
Month 1~12 4 8
Day 1~31 5 13
When 0~23 5 18
Point 0~59 6 24
Second 0~59 6 30
Millisecond 0~999 10 40
Microsecond 0~999 10 50
Nanosecond 0~999 10 60
If two parts will be divided into first time information according to the method described above, coarse-grain (third temporal information) and thin Granularity (the 4th temporal information) two parts, coarse-grain (third temporal information) are sent by broadcast channel, fine granularity (the Four temporal informations) it is sent by unicast, such as control channel or data channel are sent.Unicast can be saved in this way to each terminal The bits number of transmission time information, to save signaling overheads.
Specifically, first time information is greater than or equal to the portion of 1000ms if setting first time threshold is 1000ms It is divided into third temporal information, i.e. coarse-grain temporal information.The coarse-grain temporal information is sent by broadcast channel, that Unit is that the part of " second " or more (including " second ") is sent by broadcast channel in table 2, probably occupancy 30bit.Correspondingly, It will be the 4th temporal information, i.e. fine granularity temporal information by the part for being less than 1000ms in the first time information.This is thin Granularity temporal information is sent by control channel or data channel, then in table 2 unit be " second " part below (such as " millisecond ", " microsecond " or " nanosecond ") it is sent by control channel or data channel.It should be understood that the application includes being not limited to The example above.
If broadcast channel uniformly sends coarse-grain information (the third time according to 320ms, 640ms or 1280ms granularity Information), each terminal is then sent to such as the analysis of the following table 2 according to the fine granularity (the 4th temporal information) that Ts sends unicast Unicast info can be reduced to 20bits or more.
Table 2
Period 320ms 640ms 1280ms
Broadcast bit number 33 32 31
Unicast bit number 24 25 26
It is alternatively possible to divide coarse-grain (third temporal information) and fine granularity (according to first time threshold Four temporal informations).The first time threshold be the broadcast singal update cycle duration or paging signal sending cycle when It is long.When the transmission of the long duration for being greater than or equal to the broadcast singal update cycle of absolute time or paging signal in first time information The duration in period is just divided into coarse-grain (third temporal information).The coarse-grain (third temporal information) of this part It can be sent by broadcast channel, terminal device is monitored, the coarseness temporal information in the broadcast channel is periodically obtained, The i.e. described network equipment sends the third temporal information to the terminal device by broadcast channel, and terminal device passes through broadcast Channel receives the third temporal information from the network equipment.
It is less than the duration of broadcast singal update cycle or the transmission of paging signal when the absolute duration in first time information The duration in period is just divided into fine granularity (the 4th temporal information).The i.e. described network equipment by control channel and/or Data channel sends the third temporal information to the terminal device, and the terminal device passes through control channel and/or data Channel receives the 4th temporal information from the network equipment.
It should be understood that in current wireless communication system, there is no in control channel or data channel transmission time information Scheme, also not about format of temporal information etc..Therefore, Yao Shixian sends timestamp ginseng in control channel or data channel Examination point information T1(i.e. first time information), the network equipment, which needs to stab according to control information format sending time predetermined, joins Examination point information T1.The control information format predetermined can be a kind of format that agreement newly defines, and/or, according to difference In the scrambling mode etc. of other control signalings.
In addition, the network equipment is also it needs to be determined that send timestamp reference point information T1The time of (i.e. first time information) Point.Because the network equipment has been pre-configured with the period of first time information transmission, the time point that first time information is sent It can be there are many possible situation.
Non-limiting as an example, the network equipment can be in the sending cycle of preconfigured first time information Some fixed time location sends timestamp reference point information T1(i.e. first time information), correspondingly, terminal device exists Some fixed time location receives timestamp reference point information T in the sending cycle of preconfigured first time information1 (i.e. first time information).
Optionally, the 1st time slot position such as in the period, which can be the network equipment and is pre-configured with informing terminal Equipment.It is also possible to relatively-stationary time location in the period, such as sends rear 1 time slot of the first reference signal, the position It can be the network equipment and be pre-configured with informing terminal device.
Optionally, the transmission of network equipment timestamp reference point information T1The time of (i.e. first time information) can also be with It is flexible position, it can be at one in segment limit.Such as the first period, first period includes in the period 1 K time quantum before the third moment, K are integer；And/or first period includes the institute in the period 1 T time quantum after the third moment is stated, T is integer.Specifically, the first period can be send the first reference signal before It is sent within the scope of T subframe after K subframe and the first reference signal, wherein K, T are integers, be can be by the network equipment according to being System capacity is determined or is defined in advance.
Aforementioned, we define timestamp reference point information T1(i.e. the temporal information at the first moment), timestamp reference Point information T1Sending cycle, the channel for transmission and the time of transmission etc., so that it may realize the network equipment by the time Stab reference point information T1It is sent to terminal device, terminal device receives timestamp reference point information T1。
After terminal device receives the first reference signal of the network equipment, second can be retransmited to the network equipment with reference to letter Number.Terminal device records are T at the time of sending the second reference signal3.Similarly, terminal device can play stamp by itself to record The sending instant T of second reference signal3(the 4th moment).The T at the time of network equipment receives second reference signal4(second Moment), the network equipment records the T4Moment (the second moment), i.e. the second temporal information.Next, the network equipment need by this Two temporal informations are sent to terminal device.
Similarly, the second temporal information T4Transmission be referred to first time information T above-mentioned1Sending method.Network is set The standby time of reception T by the second reference signal4(the second temporal information) is sent to terminal device, terminal device receive this second Temporal information T4.For simplicity, details are not described herein again.
In S420, when the terminal device is according to first moment and the second moment and third moment and the 4th It carves, determines the time deviation between the terminal device and the network equipment, the third moment is that the terminal device connects T2 at the time of receiving the synchronization signal, the 4th moment are T3 at the time of the terminal device sends the response signal.
In S430, the terminal device corrects clock according to the time deviation.
Optionally, which can be downlink reference signal, and the second reference signal is uplink reference signals.It answers Understand, uplink reference signals (the first reference signal) provided by the embodiments of the present application and downlink reference signal (the second reference signal) Sequence without limitation.Whether uplink reference signals (the first reference signal) first is sent out, then sends out downlink reference signal (the second reference Signal), downlink reference signal (the second reference signal) first still is sent out, then send out uplink reference signals (the first reference signal), terminal Equipment can calculate time deviation Δ T by formula (1) according to corresponding temporal information, repair further according to the time deviation Positive clock.
It should be understood that correcting clock according to time deviation, " time deviation " here refers to the Δ being calculated by formula (1) T, Δ T may there are many different titles, such as " the first deviation ", " clock jitter ", " time complexity curve value " etc., " amendments " It can be appreciated that " check and correction ", " verification ", " correction " etc., the embodiment of the present application is described as " correcting clock according to time deviation " It is a kind of example and non-limiting, the application includes being not limited to this.
The method provided through the foregoing embodiment can be realized in a wireless communication system, guarantee terminal device and network Time deviation between equipment is in system coverage.A kind of transmission is provided for wireless system in the embodiment of the present application simultaneously The method of temporal information, enables the periodically accurate acquisition time information of terminal device, improves user experience.
By above-mentioned method, terminal device has obtained T1、T2、T3And T4Temporal information, the network equipment and terminal The calculation formula of the time deviation Δ T of equipment room can be with are as follows:
Wherein, T2 and T3 can play stamp realization by own hardware with terminal device, and the embodiment before us is by discussion T1 and T4 how are transmitted, but can be deformed by above-mentioned formula are as follows:
Therefore, in another achievable embodiment, terminal device only needs to obtain (T1+T4) information Time deviation is calculated, without obtaining T respectively1And T4, by taking the first reference signal is sent earlier than the second reference signal as an example, The i.e. described terminal device can receive institute from the network equipment before the 4th moment (sending instant of the second reference signal) First time information is stated, receives described the from the network equipment after the 4th moment (sending instant of the second reference signal) Two temporal informations；Or the terminal device after the 4th moment (sending instant of the second reference signal) from the network equipment Receive the first time information and second temporal information.
Fig. 8 is the schematic diagram of another example time complexity curve provided by the embodiments of the present application.Fig. 8 includes the following contents:
S801, in the time point T of agreement1, the network equipment is to terminal device transmission downlink time reference signal (for example, same Walk signal), the network equipment 110 records the sending instant T of downlink time reference1, terminal device records downlink time reference signal Time of reception T2。
S802, at the time point of agreement, terminal device 120 sends upstream time reference signal, terminal to the network equipment 110 The sending instant T of the record upstream time reference signal of equipment 1203, the reception of the record upstream time reference signal of the network equipment 110 Moment T4。
S803, the network equipment 110 is by timestamp information (T1+T4) it is sent to terminal device 120；
S804, terminal device 120 is according to timestamp information T1、T2、T3And T4It is calculated with the calculation formula (2) of time deviation Local clock corrects local clock relative to network equipment time deviation Δ T with this.
Optionally, the available T of the network equipment1And T4Temporal information after, by T1And T4Temporal information be carried on one Terminal device is sent in a signaling, terminal device obtains T after receiving the time signaling1And T4Temporal information, in conjunction with T2 And T3Temporal information, time deviation Δ T is calculated by formula (1) or formula (2), further according to the time deviation correct Clock.
Alternatively, the available T of the network equipment1And T4Temporal information after, to (T1+T4) absolute time information carry out It calculates, the result of calculating is carried in a signaling and is sent to terminal device, terminal device obtains after receiving the time signaling Take (T1+T4) temporal information, in conjunction with T2And T3Temporal information, time deviation Δ T, then root are calculated by formula (2) Clock is corrected according to the time deviation.It should be understood that the embodiment of the present application is not intended to limit.
In this achievable embodiment, it is only necessary to pass through a time letter between the network equipment and terminal device Temporal information is notified terminal device to realize by the interaction of order, can save the expense of signaling.Later, according to transmission above-mentioned The method of first time information completes T1+T4Information transmission, for simplicity, details are not described herein again.
The clock makeover process between terminal device and the network equipment is completed as a result,.
Above in association with Fig. 1 to and Fig. 8, the embodiment of the present application is described in detail, below in conjunction with Fig. 9 to Figure 14, retouches in detail The communication device for stating the embodiment of the present application is described in detail.It specifically, will be from the embodiment of terminal device and the network equipment It is illustrated, it should be appreciated that the embodiment of terminal device is corresponded to each other with the embodiment of the network equipment with embodiment of the method, similar Description is referred to embodiment of the method.
Fig. 9 show the signal frame diagram of the embodiment of the communication device 900 of the embodiment of the present application, the communication device 900 Terminal device described in (for example, can be configured at or be) above method 300 in itself can be corresponded to.
As shown in figure 9, the communication device 900 may include: Transmit-Receive Unit 910 and processing unit 920, it should be appreciated that this is logical T unit may include some or all of in lower unit.
Transmit-Receive Unit 910, for, from network equipment receiving time information, first channel to be by the first channel Broadcast channel and/or control channel or first channel are broadcast channel and/or data channel, wherein the temporal information Including first time information and the second temporal information, the first time information is used to indicate the network equipment to the terminal Equipment sends the first moment of the first reference signal, second temporal information be used to indicate the network equipment receive it is described Second moment of the second reference signal that terminal device is sent.
Specifically, following a variety of implementations are enumerated herein, and the network equipment can be using appointing in following various ways A kind of mode of anticipating sends the temporal information to terminal device, specifically includes:
1) network equipment can any one channel in control channel or data channel send the timestamp reference point Information T1(i.e. first time information), correspondingly, terminal device is received in any one of control channel or data channel channel Timestamp reference point information T1(i.e. first time information).
2) network equipment can send timestamp reference point information T in control channel and data channel simultaneously1(i.e. first Temporal information), correspondingly, terminal device is in control channel and data channel reception timestamp reference point information T1(i.e. first Temporal information).
3) network equipment can send timestamp reference point information T in broadcast channel1(i.e. first time information), accordingly , terminal device receives timestamp reference point information T in broadcast channel1(i.e. first time information).
4) network equipment can send timestamp reference point information T in broadcast channel and control channel1(i.e. at the first time Information), correspondingly, terminal device receives timestamp reference point information T in broadcast channel and control channel1(i.e. at the first time Information).
5) network equipment can send timestamp reference point information T in broadcast channel and data channel1(i.e. at the first time Information), correspondingly, terminal device is in broadcast channel and data channel reception timestamp reference point information T1(i.e. at the first time Information).
By the above various possible modes, which is connect by the first channel from the network equipment within multiple periods Receive temporal information.
It should be understood that the network equipment will periodically send first time information to terminal device, the network equipment is needed to configure The period of the first time information is sent, and the period is sent to terminal device, terminal device receives the first time information Period assignment information.
The network equipment is that the temporal information transmission cycle of each terminal equipment configuration can be different, specifically can be by net Network equipment is determined according to terminal capability.Such as different temporal informations is configured according to the clock devices accuracy of terminal device Sending cycle is transmitted, clock devices terminal device with high accuracy can keep longer time local clock ability time of occurrence deviation big In required precision, the then terminal device greater than low precision that the sending cycle of the first time information of the terminal device can be set First time information sending cycle.If certain terminal device is higher than other terminal devices, such as its to time deviation requirement He requires time deviation within 1us by terminal device, which requires in 0.1us, then the period of the terminal device needs It is set as just carrying out clock synchronization compared with short cycle.
The network equipment can be the terminal equipment configuration continuous period, and each period in multiple period can be sent out The temporal information is sent, is believed within the period 1 in the sending cycle of multiple temporal informations from network equipment receiving time Breath, wherein the period 1 is any one period in the sending cycle of the multiple temporal information, and described first week Phase includes the third moment and the 4th moment.In i.e. each period, terminal device is remembered when receiving the first reference signal Record the time of reception (beating timestamp) once, the sending instant for recording or setting when sending the second reference signal (beats the time Stamp) it is primary；The sending instant (beating timestamp) that the network equipment is recorded or set when sending the first reference signal once, is connecing It is primary that the time of reception (beating timestamp) is recorded when receiving the second reference signal.
Optionally, as the period of first time information and the period of the first reference signal can be, it is also possible to not The same, aforementioned detailed description.Specifically, the network equipment is the period 1 in multiple periods of terminal equipment configuration Duration be N times of duration of sending cycle of first reference signal, N is positive integer, and the period 1 is described more Any one period in a period.For example, the period of first time information is 2 times of the period of the first reference signal.Network Equipment is only within the period of first time information to be sent, logging timestamp reference point information (and first time information).
In addition, terminal device needs a certain period or a certain moment transmission time information within the period, i.e. the transmitting-receiving Unit 910 is used to pass through within the first period the first channel from network equipment receiving time information, wherein the first period packet K time quantum before the third moment in the period 1 is included, K is integer；And/or first period includes T time quantum after the third moment in the period 1, T is integer.For example, K before the third moment In the range of T subframe or time slot after subframe or time slot to third moment, the temporal information is sent.
It,, can be by order to save signaling overheads because the precision of temporal information is different in a kind of possible embodiment First time information is divided into third temporal information and the 4th temporal information, the third time letter according to different time precisions Breath includes the part that the time is greater than or equal to first time threshold in the temporal information, and the 4th temporal information includes described The time is less than the part of the first time threshold in temporal information.
For example, first time information is divided into coarse-grain (according to regular hour threshold value (first time threshold) Three temporal informations) and fine granularity (the 4th temporal information) two parts.Such as reach nanosecond or Ts magnitude.
The Transmit-Receive Unit 910 is used to receive the third temporal information from the network equipment by broadcast channel, leads to It crosses control channel and/or data channel and receives the 4th temporal information from the network equipment.
Optionally, the first time threshold is the duration of the sending cycle of broadcast singal update cycle or paging signal.
When the long transmission for being greater than or equal to broadcast singal update cycle or paging signal of absolute time in first time information The duration in period is just divided into coarse-grain (third temporal information).The coarse-grain (third temporal information) of this part It can be sent by broadcast channel, terminal device is monitored, the coarseness temporal information in the broadcast channel is periodically obtained, The i.e. described network equipment sends the third temporal information to the terminal device by broadcast channel, and terminal device passes through broadcast Channel receives the third temporal information from the network equipment.
When the absolute duration in first time information is less than the sending cycle of broadcast singal update cycle or paging signal Duration is just divided into fine granularity (the 4th temporal information).The i.e. described network equipment is believed by control channel and/or data Road sends the third temporal information to the terminal device, the terminal device by control channel and/or data channel from The network equipment receives the 4th temporal information.
It should be understood that in current wireless communication system, there is no in control channel or data channel transmission time information Scheme, also not about format of temporal information etc..Therefore, Yao Shixian sends timestamp ginseng in control channel or data channel Examination point information T1(i.e. first time information), the network equipment, which needs to stab according to control information format sending time predetermined, joins Examination point information T1.The control information format predetermined can be a kind of format that agreement newly defines, and/or, according to difference In the scrambling mode etc. of other control signalings.
When first time information T has been received by Transmit-Receive Unit in the communication device 9001, the second temporal information T4It Afterwards, terminal device will record T at the time of receiving the first reference signal2, it is T at the time of sending the second reference signal3, terminal device It can be by itself playing stamp come T at the time of recording first reference signal2The sending instant T at (third moment) and the second reference signal3 (the 4th moment).
Processing unit 920 was used for according to first moment, the second moment, third moment and the 4th moment, determine described in Time deviation between terminal device and the network equipment, the third moment are that the terminal device receives described first At the time of reference signal, at the time of the 4th moment is that the terminal device sends second reference signal.
The processing unit 920 is also used to correct clock according to the time deviation.
In a kind of possible design, which can be terminal device or the core being configured in terminal device Piece.
It should be understood that the terminal that the communication device 900 can correspond in the communication means 300 according to the embodiment of the present application is set Standby, which may include the module for executing the method that the terminal device of communication means 300 in Fig. 3 executes.And And each module in the communication device 900 and other above-mentioned operation and/or functions are respectively in order to realize communication means 300 in Fig. 3 Corresponding process, specifically, the Transmit-Receive Unit 910 is for step 301, step 302, step 303 and the step in method 300 304, which is used to execute the step 305 in method 300, and each unit executes the detailed process of above-mentioned corresponding steps It has been described in detail in method 300, for sake of simplicity, details are not described herein.
Figure 10 is the schematic block diagram of communication device 1000 provided by the embodiments of the present application, which can be right Answer the network equipment described in (for example, can be configured at or be) above method 300 in itself.
As shown in Figure 10, which may include: processing single 1010 and Transmit-Receive Unit 1020.
Processing unit 1010, for determining the first channel of transmission time information, first channel be broadcast channel and/ Or control channel or first channel are broadcast channel and/or data channel；
Transmit-Receive Unit 1020, for passing through first channel to terminal device transmission time information, wherein the time Information includes first time information and the second temporal information, and the first time information is used to indicate the network equipment to described Terminal device sends the first moment of the first reference signal, and second temporal information is used to indicate the network equipment and receives Second moment of the second reference signal that the terminal device is sent.
As one embodiment, the Transmit-Receive Unit 1020 by first channel within multiple periods to terminal for being set Standby transmission time information.
Optionally, the duration of the period 1 in the multiple period be the sending cycle of first reference signal when Long N times, N are positive integer, and the period 1 is any one period in the multiple period.
For example, the Transmit-Receive Unit 1020 is used within the first period through first channel to terminal device sending time Information, wherein first period include the third moment in the period 1 before K time quantum, K be it is whole Number；And/or first period includes T time quantum after third moment in the period 1, T is whole Number.
It optionally,, can be according to different time precisions in order to save signaling overheads because the precision of temporal information is different First time information is divided into third temporal information and the 4th temporal information, the third temporal information includes the time letter In breath the time be greater than or equal to first time threshold part, the 4th temporal information include in the temporal information time it is small In the part of the first time threshold.
In one in possible implementation, the first time threshold is broadcast singal update cycle or paging signal The duration of sending cycle.
The Transmit-Receive Unit 1020 can send the third temporal information to the terminal device by broadcast channel, pass through Control channel and/or data channel send the 4th temporal information to the terminal device.
Optionally, which can the transmission of the terminal device described in the forward direction at the 4th moment described first Temporal information, rear at the 4th moment send second temporal information to terminal device；Or the terminal device is in institute It states the rear of the 4th moment and sends the first time information and second temporal information to the terminal device.
The method provided through the foregoing embodiment can be realized in a wireless communication system, guarantee terminal device and network Time deviation between equipment is in system coverage.A kind of terminal is provided for wireless system in the embodiment of the present application simultaneously The method of equipment acquisition time information, can periodically accurate acquisition time information, improve user experience.
In a kind of possible design, which can be terminal device or the core being configured in terminal device Piece.
It should be understood that the terminal that the communication device 1000 can correspond in the communication means 300 according to the embodiment of the present application is set Standby, which may include the module for executing the method that the terminal device of communication means 300 in Fig. 3 executes. Also, each module and other above-mentioned operation and/or functions in the communication device 1000 are respectively in order to realize communication means in Fig. 3 300 corresponding process, specifically, the Transmit-Receive Unit 1020 is for step 301, step 302, step 303 and the step in method 300 Rapid 304, the detailed process that each unit executes above-mentioned corresponding steps has been described in detail in method 300, for sake of simplicity, herein not It repeats again.
Figure 11 is the structural schematic diagram of terminal device 1100 provided by the embodiments of the present application.As shown in figure 11, which sets Standby 1100 include processor 1110 and transceiver 1120.Optionally, which further includes memory 1130.Wherein, It is communicated with each other between processor 1110, transceiver 1120 and memory 1130 by internal connecting path, transmitting control and/or number It is believed that number, the memory 1130 is for storing computer program, and the processor 1110 from the memory 1130 for calling simultaneously The computer program is run, to control 1120 receiving and transmitting signal of transceiver.
Above-mentioned processor 1110 and memory 1130 can synthesize a processing unit, and processor 1110 is for executing storage The program code stored in device 1130 realizes above-mentioned function.When specific implementation, which, which also can integrate, is being handled In device 1110, or independently of processor 1110.
Above-mentioned terminal device can also include antenna 1140, downlink data or downlink control for exporting transceiver 1120 Signaling processed is sent by wireless signal.
Specifically, the terminal which can correspond in the communication means 300 according to the embodiment of the present application is set Standby, which may include the module for executing the method that the terminal device of communication means 300 in Fig. 3 executes. Also, each module and other above-mentioned operation and/or functions in the terminal device 1100 are respectively in order to realize communication means in Fig. 3 300 corresponding process.Specifically, the memory 1130 is for storing program code, so that processor 1110 is executing the program When code, the step 305 in method 300 is executed, and controls the transceiver 1120 and passes through the step in 1140 execution method 300 of antenna Rapid 301, step 302, step 303 or step 304, each module have executed the detailed processes of above-mentioned corresponding steps in method 300 It is described in detail, for sake of simplicity, details are not described herein.
Figure 12 is the structural schematic diagram of terminal device 1200 provided by the embodiments of the present application.As shown in figure 12, which sets Standby 1200 include: processor 1201 and transceiver 1202, and optionally, which further includes memory 1203.Wherein, Wherein, it is communicated with each other between processor 1202, transceiver 1202 and memory 1203 by internal connecting path, transmitting control And/or data-signal, for storing computer program, which is used for from the memory 1203 memory 1203 The computer program is called and runs, to control 1202 receiving and transmitting signal of transceiver.
Above-mentioned processor 1201 and memory 1203 can synthesize a processing unit 1204, and processor 1201 is for executing The program code stored in memory 1203 realizes above-mentioned function.When specific implementation, which also be can integrate In processor 1201, or independently of processor 1201.Above-mentioned terminal device 1200 can also include antenna 1210, for that will receive The upstream data or upstream control signaling that hair device 1202 exports are sent by wireless signal.
Specifically, the terminal that terminal device 1200 can correspond in the communication means 300 according to the embodiment of the present application is set Standby, which may include the module for executing the method that the terminal device of communication means 300 in Fig. 3 executes, Also, each module and other above-mentioned operation and/or functions in the terminal device 1200 are respectively in order to realize communication means in Fig. 3 300 corresponding process.Specifically, the memory 1203 is for storing program code, so that processor 1201 is executing the program When code, execute method 300 in step 305, and control the step 301 in 1202 execution method 300 of transceiver, step 302, Step 303 or step 304, the detailed process that each module executes above-mentioned corresponding steps have been described in detail in method 300, in order to Succinctly, details are not described herein.
Above-mentioned processor 1201 can be used for executing the movement realized described in previous methods embodiment by terminal inner, And transceiver 1202 can be used for executing terminal described in previous methods embodiment to terminal device transmission or send dynamic Make.Specifically see the description in previous methods embodiment, details are not described herein again.
Above-mentioned processor 1201 and memory 1203 can integrate as a processing unit, and processor 1201 is deposited for executing The program code stored in reservoir 1203 realizes above-mentioned function.When specific implementation, which, which also can integrate, is locating It manages in device 1201.
Above-mentioned terminal device 1200 can also include power supply 1205, for the various devices or circuit offer electricity in terminal Source.
In addition to this, in order to enable the function of terminal device is more perfect, which can also include input Unit 1214, display unit 1216, voicefrequency circuit 1218, one or more of camera 1220 and sensor 1222 etc., institute Stating voicefrequency circuit can also include loudspeaker 1282, microphone 1284 etc..
Figure 13 is the structural schematic diagram of the network equipment 1300 provided by the embodiments of the present application.As shown in figure 13, which sets Standby 1300 include processor 1310 and transceiver 1320.Optionally, which further includes memory 1330.Wherein, It is communicated with each other between processor 1310, transceiver 1320 and memory 1330 by internal connecting path, transmitting control and/or number It is believed that number, the memory 1330 is for storing computer program, and the processor 1310 from the memory 1330 for calling simultaneously The computer program is run, to control 1320 receiving and transmitting signal of transceiver.
Above-mentioned processor 1310 and memory 1330 can synthesize a processing unit, and processor 1310 is for executing storage The program code stored in device 1330 realizes above-mentioned function.When specific implementation, which, which also can integrate, is being handled In device 1310, or independently of processor 1310.
The above-mentioned network equipment can also include antenna 1340, downlink data or downlink control for exporting transceiver 1320 Signaling processed is sent by wireless signal.
Specifically, the network which can correspond in the communication means 300 according to the embodiment of the present application is set Standby, which may include the module for executing the method that the network equipment of communication means 300 in Fig. 3 executes. Also, each module and other above-mentioned operation and/or functions in the network equipment 1300 are respectively in order to realize communication means in Fig. 3 300 corresponding process.Specifically, which controls the transceiver 1320 and passes through antenna for storing program code 1340 execute step 301, step 302, step 303 or the step 304 in method 300, and each module executes above-mentioned corresponding steps Detailed process has been described in detail in method 300, for sake of simplicity, details are not described herein.
Figure 14 is a kind of structural schematic diagram of the network equipment 1400 provided by the embodiments of the present application.It can be used to implement above-mentioned The function of the network equipment in 300 in method.It such as can be the structural schematic diagram of base station.As shown in figure 14, which can apply In system as shown in Figure 1.Base station 1400 includes one or more radio frequency units, such as remote radio unit (RRU) (remote Radio unit, RRU) 1401 and one or more Base Band Unit (baseband unit, BBU) (alternatively referred to as digital units, Digital unit, DU) 1402.The RRU 1401 is properly termed as Transmit-Receive Unit, transceiver, transmission circuit or transceiver Etc., it may include at least one antenna 1403 and radio frequency unit 1404.1401 part RRU is mainly used for radio frequency letter Number transmitting-receiving and radiofrequency signal and baseband signal conversion, such as being sent described in above-described embodiment to terminal device Signaling message.1402 part BBU is mainly used for carrying out Base-Band Processing, controls etc. base station.The RRU 1401 with BBU 1402, which can be, to be physically located at together, and setting, i.e. distributed base station can also be physically separated.
The BBU 1402 is the control centre of base station, is referred to as processing unit, is mainly used for completing Base-Band Processing Function, such as channel coding are multiplexed, modulation, spread spectrum etc..Such as the BBU (determination unit) 1402 can be used for control base station 1400 execute the operating process in the embodiment of the above method 300 about the network equipment.
In one example, the BBU 1402 can be made of one or more veneers, and multiple veneers can prop up jointly The wireless access network (such as LTE system or NR system) for holding single access standard can also support the nothing of different access standards respectively Line access.The BBU 1402 further includes memory 1405 and processor 1406.The memory 1405 is to store necessity Instruction and data.Such as memory 1405 stores the code book etc. in above-described embodiment.The processor 1406 is for controlling base It stands and carries out necessary operation, such as execute the operating process in above method embodiment about the network equipment for control base station. The memory 1405 and processor 1406 can serve one or more veneers.That is, can be single on each veneer Solely setting memory and processor.It is also possible to multiple veneers and shares identical memory and processor.Furthermore on each veneer It is also provided with necessary circuit.
It, can with the development of system on chip (System-on-chip, SoC) technology in a kind of possible embodiment The all or part of function of 1402 parts and 1401 parts to be realized by SoC technology, such as by a base station functions chip It realizes, the devices such as the base station functions integrated chip processor, memory, antennal interface, the program storage of base station correlation function In memory, program is executed to realize the correlation function of base station by processor.Optionally, which can also read The memory of the chip exterior is taken to realize the correlation function of base station.
It should be understood that the structure of the exemplary base station Figure 14 is only a kind of possible form, without coping with the embodiment of the present application structure At any restriction.The application be not precluded the future may appear other forms architecture of base station possibility.
According to method provided by the embodiments of the present application, the embodiment of the present application also provides a kind of communication system comprising aforementioned The network equipment and one or more than one terminal device.
It should be understood that the processor can be central processing unit (central processing in the embodiment of the present application Unit, CPU), which can also be other general processors, digital signal processor (digital signal Processor, DSP), it is specific integrated circuit (application specific integrated circuit, ASIC), existing At programmable gate array (field programmable gate array, FPGA) or other programmable logic device, discrete Door or transistor logic, discrete hardware components etc..General processor can be microprocessor or the processor can also To be any conventional processor etc..
It should also be understood that the memory in the embodiment of the present application can be volatile memory or nonvolatile memory, or It may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (read- Only memory, ROM), programmable read only memory (programmable ROM, PROM), the read-only storage of erasable programmable Device (erasable PROM, EPROM), electrically erasable programmable read-only memory (electrically EPROM, EEPROM) or Flash memory.Volatile memory can be random access memory (random access memory, RAM), be used as external high Speed caching.By exemplary but be not restricted explanation, random access memory (the random access of many forms Memory, RAM) it is available, such as static random access memory (static RAM, SRAM), dynamic random access memory (DRAM), Synchronous Dynamic Random Access Memory (synchronous DRAM, SDRAM), Double Data Rate synchronous dynamic with Machine accesses memory (double data rate SDRAM, DDR SDRAM), enhanced Synchronous Dynamic Random Access Memory (enhanced SDRAM, ESDRAM), synchronized links dynamic random access memory (synchlink DRAM, SLDRAM) and straight Meet rambus random access memory (direct rambus RAM, DR RAM).
According to method provided by the embodiments of the present application, the application also provides a kind of computer program product, the computer journey Sequence product includes: computer program code, when the computer program code is run on computers, so that the computer executes Method in embodiment illustrated in fig. 3.
According to method provided by the embodiments of the present application, the application also provides a kind of computer-readable medium, which can It reads to explain and is stored with program code, when the program code is run on computers, implement shown in Fig. 3 so that the computer executes Method in example.
It should be strongly noted that the time deviation in the various embodiments described above can be time deviation, it is also possible to other The time value of time synchronization, either time deviation or time deviation, Huo Zheqi between calibration terminal device and the network equipment Its time value be provided to understand technical solution of the present invention for example, the present invention includes being not limited to this.
According to method provided by the embodiments of the present application, the application also provides a kind of system comprising the network equipment above-mentioned With one or more terminal devices.Above-described embodiment, can be wholly or partly by software, hardware, firmware or any other Combination is to realize.When implemented in software, above-described embodiment can entirely or partly in the form of a computer program product It realizes.The computer program product includes one or more computer instructions.Load or execute on computers the computer journey When sequence instructs, the process or function being somebody's turn to do according to the embodiment of the present application are entirely or partly generated.The computer can be general meter Calculation machine, special purpose computer, computer network or other programmable devices.The computer instruction can store can in computer It reads in storage medium, or is transmitted from a computer readable storage medium to another computer readable storage medium, for example, The computer instruction can from a web-site, computer, server or data center by it is wired (such as it is infrared, wireless, Microwave etc.) mode transmitted to another web-site, computer, server or data center.The computer-readable storage Medium can be any usable medium that computer can access or include the service of one or more usable medium set The data storage devices such as device, data center.The usable medium can be magnetic medium (for example, floppy disk, hard disk, tape), light is situated between Matter (for example, DVD) or semiconductor medium.Semiconductor medium can be solid state hard disk.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed Scope of the present application.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the 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 can be combined or can be integrated into another system, 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 may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.It can select some or all of unit therein according to the actual needs to realize the mesh of this embodiment scheme 's.
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.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, the technical solution of the application is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) 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 (Read-Only Memory, ROM), arbitrary access are deposited The various media that can store program code such as reservoir (Random Access Memory, RAM), magnetic or disk.
The above, the only specific embodiment of the application, but the protection scope of the application is not limited thereto, it is any Those familiar with the art within the technical scope of the present application, can easily think of the change or the replacement, and should all contain Lid is within the scope of protection of this application.Therefore, the protection scope of the application should be based on the protection scope of the described claims.

Claims (36)

1. a kind of communication means characterized by comprising
Terminal device passes through the first channel from network equipment receiving time information, wherein the temporal information includes at the first time Information and the second temporal information, the first time information are used to indicate the network equipment and send first to the terminal device First moment of reference signal, second temporal information are used to indicate the network equipment and receive the terminal device transmission The second reference signal the second moment；
The terminal device determines the end according to first moment and the second moment and third moment and the 4th moment Time deviation between end equipment and the network equipment, the third moment are that the terminal device receives first ginseng At the time of examining signal, at the time of the 4th moment is that the terminal device sends second reference signal；
The terminal device corrects clock according to the time deviation；
First channel is broadcast channel and/or control channel or first channel is broadcast channel and/or data letter Road.
2. communication means according to claim 1, which is characterized in that the terminal device is set by the first channel from network Standby receiving time information, comprising:
The terminal device passes through the first channel from network equipment receiving time information within multiple periods.
3. communication means according to claim 2, which is characterized in that the duration of the period 1 in the multiple period is N times of the duration of the sending cycle of first reference signal, N is positive integer, and the period 1 is in the multiple period Any one period.
4. communication means according to any one of claim 1 to 3, which is characterized in that terminal device passes through the first channel From network equipment receiving time information, comprising:
The terminal device passes through the first channel from network equipment receiving time information within the first period, wherein described first Period include the third moment in the period 1 before K time quantum, K is integer；And/or
First period includes T time quantum after the third moment in the period 1, and T is integer.
5. communication means according to any one of claim 1 to 4, which is characterized in that each temporal information includes Third temporal information and the 4th temporal information, the third temporal information include in the temporal information time be greater than or equal to the The part of one time threshold, the 4th temporal information include in the temporal information time be less than the first time threshold Part.
6. communication means according to claim 5, the first time threshold be the broadcast singal update cycle duration or The duration of the sending cycle of paging signal.
7. communication means according to claim 5 or 6, which is characterized in that terminal device is set by the first channel from network Standby receiving time information, comprising:
The terminal device receives the third temporal information from the network equipment by broadcast channel, passes through control channel And/or data channel receives the 4th temporal information from the network equipment.
8. communication means according to any one of claim 1 to 7, which is characterized in that terminal device passes through the first channel From network equipment receiving time information, comprising:
The terminal device receives the first time information from the network equipment before the 4th moment, at the described 4th Second temporal information is received from the network equipment after quarter；Or
The terminal device after the 4th moment from the network equipment receive the first time information and it is described second when Between information.
9. a kind of communication means characterized by comprising
The network equipment determines the first channel of transmission time information, and first channel is broadcast channel and/or control channel, or First channel is broadcast channel and/or data channel；
The network equipment is by first channel to terminal device transmission time information, wherein the temporal information includes First time information and the second temporal information, the first time information are used to indicate the network equipment to the terminal device The first moment of the first reference signal is sent, second temporal information is used to indicate the network equipment and receives the terminal Second moment of the second reference signal that equipment is sent.
10. communication means according to claim 9, which is characterized in that the network equipment by first channel to Terminal device transmission time information, comprising:
The network equipment passes through first channel to terminal device transmission time information within multiple periods.
11. communication means according to claim 10, which is characterized in that the duration of the period 1 in the multiple period It is N times of the duration of the sending cycle of first reference signal, N is positive integer, and the period 1 is the multiple period In any one period.
12. the communication means according to any one of claim 9 to 11, which is characterized in that the network equipment passes through institute The first channel is stated to terminal device transmission time information, comprising:
The network equipment passes through first channel to terminal device transmission time information within the first period, wherein described First period include the third moment in the period 1 before K time quantum, K is integer；And/or
First period includes T time quantum after the third moment in the period 1, and T is integer.
13. the communication means according to any one of claim 9 to 12, which is characterized in that each temporal information packet Include third temporal information and the 4th temporal information, the third temporal information include in the temporal information time be greater than or equal to The part of first time threshold, the 4th temporal information include in the temporal information time be less than the first time threshold Part.
14. communication means according to claim 13, the first time threshold is the duration of broadcast singal update cycle Or the duration of the sending cycle of paging signal.
15. communication means described in 3 or 14 according to claim 1, which is characterized in that the network equipment is believed by described first Road is to terminal device transmission time information, comprising:
The network equipment sends the third temporal information to the terminal device by broadcast channel, passes through control channel And/or data channel sends the 4th temporal information to the terminal device.
16. communication means according to any one of claims 9 to 15, which is characterized in that the network equipment passes through institute The first channel is stated to terminal device transmission time information, comprising:
Network equipment terminal device described in the forward direction at the 4th moment sends the first time information, described the The rear of four moment sends second temporal information to terminal device；Or
The terminal device sends the first time information and described the to the terminal device in the rear of the 4th moment Two temporal informations.
17. a kind of communication device characterized by comprising
Transmit-Receive Unit, for passing through the first channel from network equipment receiving time information, wherein the temporal information includes first Temporal information and the second temporal information, the first time information are used to indicate the network equipment and send to the terminal device First moment of the first reference signal, second temporal information are used to indicate the network equipment and receive the terminal device Second moment of the second reference signal sent, wherein first channel is broadcast channel and/or control channel or described First channel is broadcast channel and/or data channel；
Processing unit, for determining the end according to first moment and the second moment and third moment and the 4th moment Time deviation between end equipment and the network equipment, the third moment are that the terminal device receives first ginseng At the time of examining signal, at the time of the 4th moment is that the terminal device sends second reference signal；
The processing unit is also used to correct clock according to the time deviation.
18. communication device according to claim 17, which is characterized in that the Transmit-Receive Unit is used to lead within multiple periods The first channel is crossed from network equipment receiving time information.
19. communication device according to claim 18, which is characterized in that the duration of the period 1 in the multiple period It is N times of the duration of the sending cycle of first reference signal, N is positive integer, and the period 1 is the multiple period In any one period.
20. communication device described in any one of 7 to 19 according to claim 1, which is characterized in that the Transmit-Receive Unit is used for Pass through the first channel in first period from network equipment receiving time information, wherein first period includes described first week K time quantum before the third moment in phase, K is integer；And/or
First period includes T time quantum after the third moment in the period 1, and T is integer.
21. communication device described in any one of 7 to 20 according to claim 1, which is characterized in that each temporal information packet Include third temporal information and the 4th temporal information, the third temporal information include in the temporal information time be greater than or equal to The part of first time threshold, the 4th temporal information include in the temporal information time be less than the first time threshold Part.
22. communication device according to claim 21, which is characterized in that the first time threshold is broadcast singal update The duration of the sending cycle of the duration or paging signal in period.
23. the communication device according to claim 21 or 22, which is characterized in that the Transmit-Receive Unit is used for through broadcast letter Road receives the third temporal information from the network equipment, by control channel and/or data channel from the network equipment Receive the 4th temporal information.
24. communication device according to claim 18, which is characterized in that the Transmit-Receive Unit was used at the 4th moment The first time information is received from the network equipment before, when receiving described second from the network equipment after the 4th moment Between information；Or
The Transmit-Receive Unit after the 4th moment from the network equipment receive the first time information and it is described second when Between information.
25. a kind of communication device characterized by comprising
Processing unit, for determining that the first channel of transmission time information, first channel are broadcast channel and/or control letter Road or first channel are broadcast channel and/or data channel；
Transmit-Receive Unit, for by first channel to terminal device transmission time information, wherein the temporal information includes First time information and the second temporal information, the first time information are used to indicate the network equipment to the terminal device The first moment of the first reference signal is sent, second temporal information is used to indicate the network equipment and receives the terminal Second moment of the second reference signal that equipment is sent.
26. communication device according to claim 25, which is characterized in that the Transmit-Receive Unit is used to lead within multiple periods First channel is crossed to terminal device transmission time information.
27. communication device according to claim 26, which is characterized in that the duration of the period 1 in the multiple period It is N times of the duration of the sending cycle of first reference signal, N is positive integer, and the period 1 is the multiple period In any one period.
28. the communication device according to any one of claim 25 to 27, which is characterized in that the Transmit-Receive Unit is used for By first channel to terminal device transmission time information in first period, wherein first period includes described the K time quantum before the third moment in one period, K is integer；And/or
First period includes T time quantum after the third moment in the period 1, and T is integer.
29. the communication device according to any one of claim 25 to 28, which is characterized in that each temporal information packet Include third temporal information and the 4th temporal information, the third temporal information include in the temporal information time be greater than or equal to The part of first time threshold, the 4th temporal information include in the temporal information time be less than the first time threshold Part.
30. communication device according to claim 29, which is characterized in that the first time threshold is broadcast singal update The duration of the sending cycle of the duration or paging signal in period.
31. the communication device according to claim 29 or 30, which is characterized in that the Transmit-Receive Unit is used for through broadcast letter Road sends the third temporal information to the terminal device, by control channel and/or data channel to the terminal device Send the 4th temporal information.
32. communication device according to claim 31, which is characterized in that the Transmit-Receive Unit was used at the 4th moment Forward direction described in terminal device send the first time information, rear at the 4th moment sends described the to terminal device Two temporal informations；Or
The Transmit-Receive Unit sends the first time information and described the to the terminal device in the rear of the 4th moment Two temporal informations.
33. a kind of computer readable storage medium, for storing computer program, which is characterized in that the computer program packet It includes for realizing the instruction of method described in any one of the claims 1 to 8.
34. a kind of computer readable storage medium, for storing computer program, which is characterized in that the computer program packet It includes for realizing the instruction of method described in any one of the claims 9 to 16.
35. a kind of computer program product, which is characterized in that the computer program product includes: computer program code, when When the computer program code is run on computers, so that the computer is executed such as any one of claims 1 to 8 institute State communication means.
36. a kind of computer program product, which is characterized in that the computer program product includes: computer program code, when When the computer program code is run on computers, so that the computer is executed such as any one of claim 9 to 16 The communication means.
CN201810291180.1A 2018-04-03 2018-04-03 The method and apparatus of communication Pending CN110351823A (en)

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