CN102083194B - Method, system and equipment for sending time information and synchronizing time - Google Patents
Method, system and equipment for sending time information and synchronizing time Download PDFInfo
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- CN102083194B CN102083194B CN200910238669.3A CN200910238669A CN102083194B CN 102083194 B CN102083194 B CN 102083194B CN 200910238669 A CN200910238669 A CN 200910238669A CN 102083194 B CN102083194 B CN 102083194B
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Abstract
The embodiment of the invention discloses a method for sending time information and synchronizing time, comprising the following steps: a network side sends the system time information of the network side to a terminal through a downlink transmission channel; and the terminal receives the system time information from the downlink transmission channel, and corrects the local time of the terminal according to the system time information, so as to lead the corrected local time of the terminal to be synchronous with the system time. The embodiment of the invention also discloses a wireless communication system and equipment. According to the invention, the terminal can reliably and simply acquire the system time, thus ensuring that the local time and the system time of the network side are synchronous.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of temporal information transmission and method for synchronizing time, system and equipment.
Background technology
In time division duplex (TDD) mobile communication system, in order to reduce artificial drive test work, to reduce construction and the operation cost of network, 3G (Third Generation) Moblie standardization body (3GPP) is carrying out the research work of minimum road test (MDT).
The thought of MDT is to define some measuring amount, and terminal is measured and measurement result is reported to network side these measuring amount.Meanwhile, UE need to together report network side by Measuring Time information and measurement result, is used for auxiliary network to do the network optimization.If the Measuring Time that UE reports is asynchronous with the system time of network side, can make network optimization work be affected.
In order to make UE can report the temporal information of synchronizeing with system time, need to ensure that the local zone time of UE maintenance and the system time of network side are consistent, specifically there are at present following two kinds of methods:
The first: GPS mode.
By global positioning system (GPS) calibration, the UE with GPS function can receive the time signal on GPS, utilizes this time signal UE to calibrate local zone time, consistent to ensure the local zone time of UE maintenance and the system time of network side.
The second: time server.
In this method, terminal is undertaken alternately to obtain system time information by application layer protocol and time server.Concrete, in the time meeting specified conditions, while startup as terminal, terminal is obtained request to the ntp server initiation time of network side, and extract the system time information in the response message that ntp server returns, then UE utilizes this system time to calibrate local zone time, consistent to ensure the local zone time of UE maintenance and the system time of network side.
Realizing in process of the present invention, inventor finds to exist in prior art following technical problem:
Adopt that the system time of local zone time that GPS mode ensures that UE safeguards and network side is consistent exists following problem:
GPS is not that the UE without GPS function cannot adopt the GPS method alignment time to the necessarily requiring of UE;
Even if having GPS function, UE can not ensure that UE mono-receives the time signal on GPS surely, such as UE is just difficult to receive satellite-signal indoor.
Adopt that the system time of local zone time that time server mode ensures that UE safeguards and network side is consistent exists the following shortcoming:
Due to the mutual link of newly-increased terminal and network, need to formulate complete terminal and ntp server and carry out mutual flow process;
Ntp server is meeting on the basis of network side time synchronized demand, also can terminaloriented, because terminal number is huge, if great amount of terminals often all needs and ntp server communicates, impact to ntp server is large, if need the UE of communication and network measurement equipment (such as base station) too much in the same time, may cause NTP system crash;
Extensibility a little less than, if the non-ntp server of following adopted provides system time information, terminal and corresponding flow process all need to modify;
Robustness is poor, and the reliability of ntp server can become the bottleneck of whole network reliability, once ntp server because increasing of UE number collapsed, other network equipments also cannot carry out time synchronized.
Summary of the invention
The embodiment of the present invention provides a kind of temporal information sending method and base station, for the scheme of reliable, easy transmitting system time is provided.
A kind of temporal information sending method, the method comprises:
Network side obtains system time information;
Send described system time information by descending transmission channel to terminal.
A kind of radio network controller, this radio network controller comprises:
Time acquisition unit, for obtaining the system time information of network side;
Time delivery unit, for sending described system time information to base station, to indicate base station to send described system time information by descending transmission channel to terminal.
A kind of base station, this base station comprises:
Packet receiving element, the packet that comprises system time information of sending for receiving radio network controller;
Signaling transmitting element, sends the signaling message that carries described system time information to terminal for the descending transmission channel by this base station and terminal room.
In the present invention, network side by descending transmission channel to the terminal transmitting system time, do not need requirement terminal to possess GPS function, do not need increase or change terminal and ntp server to carry out mutual flow process yet, can be to the terminal transmitting system time of any connecting system; Do not exist NTP system crash to cause system time to can not get the problem sending, reached the object of reliable easy transmitting system time yet.
The embodiment of the present invention provides also a kind of method for synchronizing time, wireless communication system and terminal, for providing reliable, easy terminal to obtain system time and utilizing this system time to carry out the scheme of time calibration.
A kind of method for synchronizing time, the method comprises:
Terminal receives the system time information of network side transmitted in descending transmission channel;
According to described system time information, terminal local zone time is calibrated, and after calibration, terminal local zone time keeps synchronizeing with system time.
A kind of wireless communication system, this system comprises:
The network equipment, for sending the system time information of network side to terminal by descending transmission channel;
Terminal, for receive described system time information in described descending transmission channel, and calibrates terminal local zone time according to this system time information, makes to calibrate rear terminal local zone time and synchronizes with system time.
A kind of terminal, this terminal comprises:
Time receiving element, for receiving the system time information of network side transmitted in descending transmission channel;
Time calibration unit, for according to described system time information, terminal local zone time being calibrated, and after calibration, the maintenance of terminal local zone time and system time is synchronizeed.
In the present invention, terminal receives in descending transmission channel the system time that network side sends, and according to this system time, terminal local zone time is calibrated, and after calibration, terminal local zone time keeps synchronizeing with system time.Visible, adopt the present invention, do not need requirement terminal to possess GPS function, do not need to increase or change terminal and ntp server carry out mutual flow process yet, it is synchronous that the terminal of any connecting system all can obtain the system time line time of going forward side by side; Do not exist NTP system crash to cause terminal cannot obtain system time and then cannot synchronous problem of deadline, make the acquisition system time that terminal can be reliable, easy and realize and the synchronizeing of system time yet.
Brief description of the drawings
The method flow schematic diagram that Fig. 1 provides for the embodiment of the present invention;
The system configuration schematic diagram that Fig. 2 provides for the embodiment of the present invention;
The structural representation of the radio network controller that Fig. 3 provides for the embodiment of the present invention;
The architecture of base station schematic diagram that Fig. 4 provides for the embodiment of the present invention;
The terminal structure schematic diagram that Fig. 5 provides for the embodiment of the present invention.
Embodiment
In order to provide a kind of reliable, easy terminal to obtain system time and to utilize this system time to carry out the scheme of time calibration, the embodiment of the present invention provides a kind of temporal information to send and method for synchronizing time, in this method, network side sends to terminal by descending transmission channel by system time information, and terminal is calibrated terminal local zone time according to this system time information.System time in the present invention refers to the network side time of communication system.
Referring to Fig. 1, the temporal information that the embodiment of the present invention provides sends and method for synchronizing time, specifically comprises the following steps:
Step 10: network side by descending transmission channel to terminal transmitting system temporal information;
Step 11: terminal receives in descending transmission channel the system time information that send base station, and according to this system time information, terminal local zone time is calibrated, and makes to calibrate rear terminal local zone time and synchronizes with system time.
In step 10, network side can pass through high speed descending sharing channel (HS-DSCH) to terminal transmitting system temporal information, and corresponding, in step 11, terminal is in HS-DSCH receiving system temporal information;
Network side can also pass through forward access channel (FACH) to terminal transmitting system temporal information, and corresponding, in step 11, terminal is in FACH receiving system temporal information.
At network side, by HS-DSCH during to terminal transmitting system temporal information, concrete implementation can adopt following two kinds:
The first: at network side, first, radio network controller (RNC) sends Radio Resource control (RRC) signaling that comprises system time information to base station, base station sends the shared control channel (HS-SCCH) of the HS-DSCH that carries time Radio Network Temporary Identifier (T-RNTI) to terminal, then, base station sends to terminal by the RRC signaling of carrying system temporal information by HS-DSCH; This T-RNTI is the predefined RNTI sending for system time.In end side, terminal is listening to after the HS-SCCH that carries this T-RNTI, receives the RRC signaling of carrying system temporal information from HS-DSCH.Here, because the transmission of HS-SCCH and HS-DSCH has fixing sequential relationship, therefore terminal is listening to after HS-SCCH, can determine that according to this sequential relationship base station sends the time of HS-DSCH, thereby receives the RRC signaling of carrying system temporal information from HS-DSCH in this time.
The second, base station, in predefined running time-frequency resource position, sends the signaling message of carrying system temporal information to terminal by HS-DSCH; Accordingly, terminal, in this running time-frequency resource position, receives the signaling message of carrying system temporal information by HS-DSCH.The information of this running time-frequency resource position can be pre-configured in terminal, can be also that base station sends to terminal by broadcast channel by the information of this running time-frequency resource position.
At network side, by FACH during to terminal transmitting system temporal information, specific implementation can be as follows:
At network side, first, RNC sends the system broadcast message of the radio frames mark that comprises transmitting system temporal information to base station, and system time information is carried in RRC signaling, sends this RRC signaling to base station; This system broadcast message is broadcasted in base station in community, then the RRC signaling of carrying system temporal information is identified in corresponding radio frames and sends to terminal by FACH in this radio frames.In end side, terminal receives after the system broadcast message of base station transmission, reads the radio frames mark of carrying in this system broadcast message, and identifies in this radio frames the RRC signaling that receives carrying system temporal information in corresponding radio frames from FACH.
Here, system broadcast message can be carried one or more radio frames marks, terminal receives the RRC signaling of carrying system temporal information in a radio frames of a radio frames mark correspondence from FACH, or in multiple radio frames corresponding to multiple radio frames marks, receives the RRC signaling of carrying system temporal information from FACH.
After terminal receives system broadcast message, and receive the RRC signaling of carrying system temporal information from FACH before, if terminal is in idle condition, terminal need to be set up RRC with network side and is connected, RRC connects after foundation, and terminal connects the RRC signaling that receives carrying system temporal information from FACH by this RRC.
After terminal is calibrated terminal local zone time according to system time information, terminal can also be measured predefined measuring amount, and the measurement result of carrying current time information is reported to network equipment, network equipment utilization is carried the measurement result of temporal information and is carried out network planning adjustment or Optimization Work.
In the present invention, the time granularity of system time can be 1 millisecond.This system time can be specifically the clock time corresponding to subframe of transmitting system temporal information.
Below the present invention is specifically described:
Because the physical signalling of TDD system is launched taking radio frames (radio frame) as unit, each radio frames is made up of 10 subframes, and each subframe continues 1ms.Therefore, TDD system time precision is at least 1ms.Said system time refers to clock time below, comprise Year/Month/Day and time/point/second/millisecond, precision is 1ms.The present invention proposes terminal in two kinds of TDD systems and obtains the method for system time, and this TDD system comprises TD SDMA (TD-SCDMA) and follow-up evolution (TD-HSDPA/HSUPA/HSPA+) system etc.
Method one: transmitting system temporal information on HS-DSCH.
In TDD high speed downlink packet access (HSDPA) and follow-up evolution system thereof, high speed descending sharing channel (HS-DSCH) and shared control channel (HS-SCCH) are introduced, support the downlink signaling information of HS-DSCH to be transmitted by HS-SCCH, the UE of all connected states in network can receive this two channels.This channel can transmit special signaling and data, also can be used for the public information of transfer system.In order to realize the function that transmits system time information on this channel, need to increase a general overall identification, for example, can called after time Radio Network Temporary Identifier (Time-Radio NetworkTemporary Identity, T-RNTI).This T-RNTI be general, be exclusively used in instruction UE receiving system temporal information.
T-RNTI transmits in HS-SCCH channel, and the terminal that is used to indicate all connected states all will receive media access control (MAC) packet of the upper carrying system temporal information transmitting of the HS-DSCH corresponding with HS-SCCH.When the UE in connected state in network is in the time listening to HS-SCCH, if be decoded to T-RNTI from this HS-SCCH, all UE in connected state are according to network configuration in advance, receive HS-DSCH corresponding to HS-SCCH therewith, read the MAC packet of the upper carrying of HS-DSCH, from this MAC packet, obtain system time information, and the local zone time that utilizes this system time information calibration UE to safeguard.
Further can reconfigure a HS-DSCH who takies fixing running time-frequency resource, the fixing running time-frequency resource that base station takies at this HS-DSCH is to terminal transmitting system temporal information.The running time-frequency resource positional information that HS-DSCH takies can be arranged in advance by base station and terminal, can be also that base station sends to UE by broadcast channel by this running time-frequency resource positional information.
Adopt this method, in the UE of all states, comprise the UE in idle (IDLE) state, cell private channel (CELL_DCH) state, cell forward access channel (CELL_FACH) state, cell paging channel (CELL_PCH) state, can be from HS-DSCH receiving system temporal information.
Method two: transmitting system temporal information on FACH.
In TD-SCDMA and follow-up evolution system thereof, FACH is common down channel, and the transmission position of FACH is to send to UE by system broadcast message.In order to transmit system time information on FACH, need to be in system broadcast message, carry the identification information of the radio frames that base station utilizes by FACH transmitting system temporal information, on the FACH of this radio frames channel, do not transmit other signaling or user data, transfer system temporal information, the system time information that certainly different radio frames sends can be different.Here said radio frames identification information can provide with System Frame Number (SFN) form, and in TDD system, the span of SFN is [0,65535].
In order to transmit system time information on FACH, also need to increase RRC signaling message, this message is for carrying system temporal information.
While adopting this method, be identified for the SFN of the radio frames of transmitting system temporal information by radio network controller (RNC), according to the corresponding relation between SFN and actual system time, can determine the system time that this SFN is corresponding, and build comprise this system time RRC signaling message, then send this RRC signaling message to base station, receive after RRC signaling message base station, on the FACH of radio frames corresponding to this SFN of RNC appointment, sends this RRC signaling message to terminal.
UE in network obtains base station by the radio frames identification information of FACH transmitting system temporal information from system broadcast message.If UE is in connected state, and need to obtain system time, UE reads the system time information on FACH in this radio frames position.If UE is in IDLE state, UE will first set up RRC connection, is then connected to this radio frames position by RRC and reads the system time information on FACH, after reading system temporal information, can discharge RRC and connect.
Network side can configure one or more radio frames for transmitting system temporal information, as the radio frames that configures SFN=100 and SFN=30000 is for transmitting system temporal information, base station can be periodically transmitting system temporal information in 100 and 30000 radio frames at SFN.
Adopt this method, the UE in connection status can receive system time information from FACH, comprises the UE in CELL_FACH state, CELL_DCH state and CELL_PCH state in the UE of connection status.
With specific embodiment, the present invention will be described below:
Embodiment mono-:
In the present embodiment, transmitting system temporal information on HS-DSCH, specific as follows:
The definition of step S01:TDD system side is used to indicate the T-RNTI of receiving system time;
Step S02: radio network controller is included in system time corresponding radio frames SFN=2396 in RRC signaling message and sends base station to, this system time information is that radio network controller calculates according to the mapping relations of SFN and system time, it is the initial x time of the radio frames of SFN=2396, for example this moment is 2009-10-20,10: 28: 35 535 milliseconds
Base station in step S03:TDD system sends by HS-SCCH the Downlink Control Information that comprises T-RNTI in the radio frames of SFN=2394; UE in connection status in the community of base station decodes T-RNTI from HS-SCCH, prepares receiving system temporal information on corresponding HS-DSCH;
Step S04: base station sends the RRC signaling message of carrying system temporal information in the radio frames of SFN=2396 by HS-DSCH;
Step S05: the UE in connection status in the community of base station in the radio frames of SFN=2396 from HS-DSCH reading out data, obtain system time information, and utilize this system time information to calibrate local zone time, for example, at the initial time of the radio frames of SFN=2400, the time of local clock is added to 40 milliseconds (because a radio frames length is 10 milliseconds), to reach the time of upgrading local clock, local zone time after renewal is 2009-10-20,10: 28: 35 575 milliseconds.
After this, the local zone time of UE reaches and synchronizes with system time.
Embodiment bis-:
In the present embodiment, the transmitting system time on FACH, in the UE of connection status reading system temporal information, specific as follows:
In step S11:TDD system, in the system broadcast message of RNC community, carry SFN3000, to represent that network side is by transmitting system temporal information in the radio frames of SFN=3000, RNC sends this system broadcast message to base station;
Step S12: this system broadcast message is broadcasted in base station in community, the UE in connection status in community has obtained SFN3000 radio frames identification information from this system broadcast message, knows network transmitting system temporal information in the radio frames of SFN=3000;
Step S13:RNC is in the moment of the radio frames of SFN=2998, by the mapping relations of SFN and system time, calculate system time corresponding to radio frames of SFN=3000, for example this system time is 2009-10-20,14: 5: 24 270 milliseconds, the RRC signaling message that structure comprises this system time, is mapped to this RRC signaling message after the MAC packet of FACH, by Iub interface by this MAC data packet delivery to base station;
Step S14: base station receives after the MAC packet that comprises system time information, sends this MAC packet in the radio frames of SFN=3000 by FACH;
Step S15: the UE in connection status in base station cell receives FACH in the radio frames of SFN=3000, obtains system time information, and taking this system time information as benchmark, upgrades local zone time.
After this, the local zone time of UE reaches and synchronizes with system time.
Embodiment tri-:
In the present embodiment, transmitting system temporal information on FACH, the UE in idle condition is setting up after RRC connects and is obtaining system time information, specific as follows:
In step S21:TDD system, in the system broadcast message of RNC community, carry SFN3000, to represent that network side is by transmitting system temporal information in the radio frames of SFN=3000, RNC sends this system broadcast message to base station;
Step S22: this system broadcast message is broadcasted in base station in community, the UE in idle condition in community has obtained SFN3000 radio frames identification information from this system broadcast message, knows network transmitting system temporal information in the radio frames of SFN=3000;
Step S23:RNC is in the moment of the radio frames of SFN=2998, by the mapping relations of SFN and system time, calculate system time corresponding to radio frames of SFN=3000, for example this system time is 2009-10-20,14: 5: 24 270 milliseconds, the RRC signaling message that structure comprises this system time, is mapped to FACH by this RRC signaling message secondary common control physical channel (CCCH), by Iub interface by mapping after data packet delivery to base station.
Step S24: base station receives after the packet that comprises system time information, sends this packet in the radio frames of SFN=3000 by FACH;
Step S25: the Idle state UE in base station cell starts to initiate random access from the radio frames of SFN=2520, and completes RRC establishment of connection in the time of SFN=2610.UE receives FACH in the radio frames of SFN=3000, obtains system time information, and as benchmark, upgrades the local zone time of oneself.
After this, the local zone time of UE reaches and synchronizes with system time.
Referring to Fig. 2, the embodiment of the present invention also provides a kind of wireless communication system, and this system comprises:
The network equipment 20, for sending the system time information of network side to terminal by descending transmission channel;
Terminal 21, for receive described system time information in described descending transmission channel, and calibrates terminal local zone time according to this system time information, makes to calibrate rear terminal local zone time and synchronizes with system time.
The described network equipment 20 for:
By high speed downlink shared channel HS-DSCH or forward access channel FACH to terminal transmitting system temporal information;
Accordingly, described terminal 21 for:
Receive described system time information at described HS-DSCH or described FACH.
The described network equipment 20 comprises radio network controller 201 and base station 202, wherein:
Radio network controller 201, for sending the radio resource control RRC signaling that comprises system time information to base station;
Base station 202, for sending and carry after the shared control channel HS-SCCH of HS-DSCH of time Radio Network Temporary Identifier T-RNTI to terminal, sends to terminal by described RRC signaling by HS-DSCH; Described T-RNTI is the predefined RNTI sending for system time;
Accordingly, described terminal 21 for:
Listening to after the HS-SCCH that carries described T-RNTI, receiving the RRC signaling of carrying described system time information from described HS-DSCH.
Described base station 202 for:
In predefined running time-frequency resource position, send the signaling message of carrying system temporal information to terminal by described HS-DSCH;
Accordingly, described terminal 21 for:
In described running time-frequency resource position, receive the signaling message that carries described system time information by described HS-DSCH.
Described radio network controller 201 for:
Send the system broadcast message of the radio frames mark that comprises transmitting system temporal information to base station, and described system time information is carried in radio resource control RRC signaling, send this RRC signaling to base station;
Described base station 202 for:
In community, broadcast after described system broadcast message, identify in corresponding radio frames, by FACH, described RRC signaling is sent to terminal in described radio frames;
Accordingly, described terminal 21 for:
Terminal receives after described system broadcast message, reads the radio frames mark of carrying in this system broadcast message; Identify in corresponding radio frames and receive the RRC signaling of carrying described system time information from described FACH in described radio frames.
Described terminal 21 also for:
After receiving described system broadcast message, and before carrying the RRC signaling of described system time information from described FACH reception, if definite this terminal is in idle condition, sets up RRC with network side and be connected; Connect from described FACH and receive the RRC signaling of carrying described system time information by the described RRC setting up.
Described terminal 21 also for:
After terminal is calibrated terminal local zone time according to this system time information, predefined measuring amount is measured, and the measurement result of carrying current time information is reported to base station.
Referring to Fig. 3, the embodiment of the present invention also provides a kind of radio network controller, can be applied in above-mentioned wireless communication system, and this radio network controller comprises:
Time acquisition unit 30, for obtaining the system time information of network side;
Time delivery unit 31, for sending described system time information to base station, to indicate base station to send described system time information by descending transmission channel to terminal.After specifically system time information can being carried to RRC signaling, send base station to.
This radio network controller also comprises:
Frame identification radio unit 32, for sending the system broadcast message of the radio frames mark that comprises transmitting system temporal information to base station, to indicate base station to broadcast this system broadcast message in community.
Referring to Fig. 4, the embodiment of the present invention also provides a kind of base station, can be applied in above-mentioned wireless communication system, and this base station comprises:
Packet receiving element 40, the packet that comprises system time information of sending for receiving radio network controller;
Signaling transmitting element 41, sends the signaling message that carries described system time information to terminal for the descending transmission channel by this base station and terminal room.
Described signaling transmitting element 41 comprises the first transmitting element and/or the second transmitting element, wherein:
Described the first transmitting element, for by high speed downlink shared channel HS-DSCH to terminal transmitting system temporal information;
Described the second transmitting element, for passing through forward access channel FACH to terminal transmitting system temporal information.
Described the first transmitting element is used for:
Send and carry after the shared control channel HS-SCCH of HS-DSCH of time Radio Network Temporary Identifier T-RNTI to terminal, described system time information exchange is crossed to HS-DSCH and send to terminal; Described T-RNTI is the predefined RNTI sending for system time; Or,
In predefined running time-frequency resource position, by described HS-DSCH to terminal transmitting system temporal information.
Described the second transmitting element is used for:
In community, broadcast is carried after the system broadcast message of radio frames mark, identifies in corresponding radio frames, by FACH, the signaling message that carries described system time information is sent to terminal in described radio frames.
Referring to Fig. 5, the embodiment of the present invention also provides a kind of terminal, can be applied in above-mentioned wireless communication system, and this terminal comprises:
Time receiving element 50, for the system time information of descending transmission channel reception network side transmitted;
Time calibration unit 51, for according to described system time information, terminal local zone time being calibrated, and after calibration, the maintenance of terminal local zone time and system time is synchronizeed.
Described time receiving element 50 comprises the first receiving element and/or the second receiving element, wherein:
Described the first receiving element is used for, and receives described system time information in high speed downlink shared channel HS-DSCH;
Described the first receiving element is used for, and receives described system time information at forward access channel FACH.
Described the first receiving element is used for:
After the HS-SCCH of the time of carrying Radio Network Temporary Identifier T-RNTI that listens to network side transmission, receive described system time information from described HS-DSCH; Described T-RNTI is the predefined RNTI sending for system time; Or,
In predefined running time-frequency resource position, receive described system time information by described HS-DSCH.
Described the second receiving element is used for:
Receive after the system broadcast message of radio frames mark of carrying network side transmitting system temporal information of network side transmitted, read the radio frames mark of carrying in this system broadcast message; Identify in corresponding radio frames and receive described system time information from described FACH in described radio frames.
This terminal also comprises:
Connect and set up unit 52, for receiving after described system broadcast message at described the second receiving element, if definite this terminal is in idle condition, sets up RRC with network side and be connected;
Accordingly, described the second receiving element is used for:
Connect and receive described system time information from described FACH by the described RRC setting up.
This terminal also comprises:
Time reports unit 53, for after described time calibration, unit was calibrated terminal local zone time according to system time information, predefined measuring amount is measured, and the measurement result of carrying current time information is reported to base station.
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the present invention provides, network side by descending transmission channel to the terminal transmitting system time, terminal receives in this descending transmission channel the system time that base station sends, according to this system time, terminal local zone time is calibrated, and after calibration, terminal local zone time keeps synchronizeing with system time.Visible, adopt the present invention, do not need requirement terminal to possess GPS function, do not need to increase or change terminal and ntp server carry out mutual flow process yet, it is synchronous that the terminal of any connecting system all can obtain the system time line time of going forward side by side; Do not exist NTP system crash to cause terminal cannot obtain system time and then cannot synchronous problem of deadline, make the acquisition system system time that terminal can be reliable, easy and realize and the synchronizeing of system time yet.
Meanwhile, the present invention does not have particular/special requirement to the hardware configuration of UE, does not increase equipment cost, and as long as in the situation that having network to connect, can accomplish, is not subject to the restriction of geographical environment.In addition, adopt the present invention, the enhancing that only need do slightly standard agreement just can realize, and does not need special server, is conducive to reduce the cost of operator.
After terminal local zone time is synchronizeed with system time, terminal is in the time of the measurement result information reporting measuring amount, the terminal local zone time of synchronizeing with system time together can be reported to network side, make network side can utilize correct temporal information to carry out the network optimization comparatively accurately.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the present invention.Like this, if these amendments of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (10)
1. a temporal information sending method, is characterized in that, the method comprises:
Network side obtains system time information;
Send described system time information by descending transmission channel to terminal;
Described descending transmission channel is: high speed downlink shared channel HS-DSCH, or forward access channel FACH;
Wherein, described network side comprises to terminal transmitting system temporal information by HS-DSCH: radio network controller sends the radio resource control RRC signaling that comprises system time information to base station, base station sends and carries after the shared control channel HS-SCCH of HS-DSCH of time Radio Network Temporary Identifier T-RNTI to terminal, described RRC signaling is sent to terminal by HS-DSCH, and described T-RNTI is the predefined RNTI sending for system time; Or base station, in predefined running time-frequency resource position, sends the signaling message of carrying system temporal information to terminal by described HS-DSCH;
Described network side comprises to terminal transmitting system temporal information by FACH:
Radio network controller sends the system broadcast message of the radio frames mark that comprises transmitting system temporal information to base station, and described system time information is carried in radio resource control RRC signaling, sends this RRC signaling to base station; Broadcast after described system broadcast message in community base station, identifies in corresponding radio frames, by described FACH, described RRC signaling is sent to terminal in described radio frames.
2. a method for synchronizing time, is characterized in that, the method comprises:
Terminal receives the system time information of network side transmitted in descending transmission channel; Described descending transmission channel is: high speed downlink shared channel HS-DSCH, or forward access channel FACH;
According to described system time information, terminal local zone time is calibrated, and after calibration, terminal local zone time keeps synchronizeing with system time;
Wherein, the system time information that described terminal receives network side transmitted at described HS-DSCH comprises: terminal is listening to after the HS-SCCH of the time of carrying Radio Network Temporary Identifier T-RNTI of network side transmission, receive the RRC signaling of carrying described system time information from described HS-DSCH, described T-RNTI is the predefined RNTI sending for system time; Or terminal, in predefined running time-frequency resource position, receives the signaling message that carries described system time information by described HS-DSCH;
The system time information that described terminal receives network side transmitted at described FACH comprises:
Terminal, receiving after the system broadcast message of radio frames mark of carrying network side transmitting system temporal information of network side transmitted, reads the radio frames mark of carrying in this system broadcast message; Identify in corresponding radio frames and receive the RRC signaling of carrying described system time information from described FACH in described radio frames.
3. method as claimed in claim 2, is characterized in that, after described terminal receives described system broadcast message, and before carrying the RRC signaling of described system time information from described FACH reception, the method further comprises:
If terminal is in idle condition, terminal is set up RRC with network side and is connected;
The RRC signaling that described terminal is carried described system time information from described FACH reception comprises:
Terminal is connected from described FACH and is received the RRC signaling of carrying described system time information by the described RRC setting up.
4. method as claimed in claim 2 or claim 3, is characterized in that, after terminal is calibrated terminal local zone time according to this system time information, the method further comprises:
Described terminal is measured predefined measuring amount, and the measurement result of carrying current time information is reported to base station.
5. a wireless communication system, is characterized in that, this system comprises:
The network equipment, for sending the system time information of network side to terminal by descending transmission channel;
Terminal, for receive described system time information in described descending transmission channel, and calibrates terminal local zone time according to this system time information, makes to calibrate rear terminal local zone time and synchronizes with system time;
Described descending transmission channel is: high speed downlink shared channel HS-DSCH, or forward access channel FACH;
Wherein, the described network equipment comprises to terminal transmitting system temporal information by HS-DSCH: radio network controller sends the radio resource control RRC signaling that comprises system time information to base station, base station sends and carries after the shared control channel HS-SCCH of HS-DSCH of time Radio Network Temporary Identifier T-RNTI to terminal, described RRC signaling is sent to terminal by HS-DSCH, and described T-RNTI is the predefined RNTI sending for system time; Or base station, in predefined running time-frequency resource position, sends the signaling message of carrying system temporal information to terminal by described HS-DSCH;
Described network side comprises to terminal transmitting system temporal information by FACH: radio network controller sends the system broadcast message of the radio frames mark that comprises transmitting system temporal information to base station, and described system time information is carried in radio resource control RRC signaling, send this RRC signaling to base station; Broadcast after described system broadcast message in community base station, identifies in corresponding radio frames, by described FACH, described RRC signaling is sent to terminal in described radio frames;
Described terminal receives at described HS-DSCH the system time information that the described network equipment sends and comprises: terminal is listening to after the HS-SCCH of the time of the carrying Radio Network Temporary Identifier T-RNTI that the described network equipment sends, receive the RRC signaling of carrying described system time information from described HS-DSCH, described T-RNTI is the predefined RNTI sending for system time; Or terminal, in predefined running time-frequency resource position, receives the signaling message that carries described system time information by described HS-DSCH;
The system time information that described terminal receives network side transmitted at described FACH comprises: terminal is receiving after the system broadcast message of radio frames mark of carrying network side transmitting system temporal information of network side transmitted, reads the radio frames mark of carrying in this system broadcast message; Identify in corresponding radio frames and receive the RRC signaling of carrying described system time information from described FACH in described radio frames.
6. a radio network controller, is characterized in that, this radio network controller comprises:
Time acquisition unit, for obtaining the system time information of network side;
Time delivery unit, for sending described system time information to base station, to indicate base station to send described system time information by descending transmission channel to terminal; Described descending transmission channel is: high speed downlink shared channel HS-DSCH, or forward access channel FACH;
Frame identification radio unit, for sending the system broadcast message of the radio frames mark that comprises transmitting system temporal information to base station, to indicate base station to broadcast this system broadcast message in community.
7. a base station, is characterized in that, this base station comprises:
Packet receiving element, the packet that comprises system time information of sending for receiving radio network controller;
Signaling transmitting element, sends the signaling message that carries described system time information to terminal for the descending transmission channel by this base station and terminal room;
Described signaling transmitting element comprises the first transmitting element and/or the second transmitting element, wherein:
Described the first transmitting element, for sending the signaling message of carrying system temporal information to terminal by high speed downlink shared channel HS-DSCH;
Described the second transmitting element, for sending the signaling message of carrying system temporal information to terminal by forward access channel FACH;
Wherein, described the first transmitting element specifically for: to terminal send carry after the shared control channel HS-SCCH of HS-DSCH of time Radio Network Temporary Identifier T-RNTI, the signaling message that carries described system time information is sent to terminal by HS-DSCH, and described T-RNTI is the predefined RNTI sending for system time; Or, in predefined running time-frequency resource position, send the signaling message of carrying system temporal information to terminal by described HS-DSCH;
Described the second transmitting element is used for:
In community, broadcast is carried after the system broadcast message of radio frames mark, identifies in corresponding radio frames, by FACH, the signaling message that carries described system time information is sent to terminal in described radio frames.
8. a terminal, is characterized in that, this terminal comprises:
Time receiving element, for receiving the system time information of network side transmitted in descending transmission channel;
Time calibration unit, for according to described system time information, terminal local zone time being calibrated, and after calibration, the maintenance of terminal local zone time and system time is synchronizeed;
Described time receiving element comprises the first receiving element and/or the second receiving element, wherein:
Described the first receiving element is used for, and receives described system time information in high speed downlink shared channel HS-DSCH;
Described the first receiving element is used for, and receives described system time information at forward access channel FACH;
Wherein, described the first receiving element specifically for: listening to after the HS-SCCH of the time of carrying Radio Network Temporary Identifier T-RNTI that network side sends, receive described system time information from described HS-DSCH, described T-RNTI is the predefined RNTI sending for system time; Or, in predefined running time-frequency resource position, receive described system time information by described HS-DSCH;
Described the second receiving element is used for:
Receive after the system broadcast message of radio frames mark of carrying network side transmitting system temporal information of network side transmitted, read the radio frames mark of carrying in this system broadcast message; Identify in corresponding radio frames and receive described system time information from described FACH in described radio frames.
9. terminal as claimed in claim 8, is characterized in that, this terminal also comprises:
Connect and set up unit, for receiving after described system broadcast message at described the second receiving element, if definite this terminal is in idle condition, sets up RRC with network side and be connected;
Described the second receiving element is used for:
Connect and receive described system time information from described FACH by the described RRC setting up.
10. terminal as claimed in claim 8 or 9, is characterized in that, this terminal also comprises:
Time reports unit, for after described time calibration, unit was calibrated terminal local zone time according to system time information, predefined measuring amount is measured, and the measurement result of carrying current time information is reported to base station.
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| CN200910238669.3A CN102083194B (en) | 2009-11-30 | 2009-11-30 | Method, system and equipment for sending time information and synchronizing time |
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| CN102955981A (en) * | 2011-08-16 | 2013-03-06 | 高德软件有限公司 | Position-based assessment system, position-based assessment terminal and position-based assessment method |
| CN102549951A (en) * | 2011-12-23 | 2012-07-04 | 华为技术有限公司 | Method, device and system for data synchronization treatment of external clock |
| CN105519155A (en) * | 2014-08-13 | 2016-04-20 | 华为技术有限公司 | Parameter configuration apparatus and parameter configuration method |
| CN106899371B (en) * | 2015-12-18 | 2020-12-11 | 中兴通讯股份有限公司 | Time synchronization method and device |
| WO2019095241A1 (en) * | 2017-11-16 | 2019-05-23 | 华为技术有限公司 | Time synchronization method and apparatus |
| CN110300008B (en) | 2018-03-22 | 2021-03-23 | 北京华为数字技术有限公司 | Method and device for determining state of network equipment |
| CN110768769B (en) * | 2018-07-27 | 2022-03-29 | 华为技术有限公司 | Time synchronization method and device based on downlink reference signal |
| CN110831144B (en) * | 2018-08-09 | 2021-08-13 | 华为技术有限公司 | Communication method and device |
| CN111417186B (en) * | 2019-01-07 | 2021-07-16 | 华为技术有限公司 | Time synchronization method and device |
| JP7332687B2 (en) * | 2019-04-26 | 2023-08-23 | 株式会社Ｎｔｔドコモ | User equipment and radio base station |
| CN113141648B (en) * | 2020-01-17 | 2022-12-13 | 大唐移动通信设备有限公司 | Timing information reporting method, terminal and network side equipment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1968078A (en) * | 2006-09-29 | 2007-05-23 | 中兴通讯股份有限公司 | Method for clock synchronization of mobile multimedia broadcast receiving terminal |
| CN101061451A (en) * | 2004-11-18 | 2007-10-24 | 西门子公司 | Method for managing a time-limited license on a computer application that can be run on a network component |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7861308B2 (en) * | 2005-11-28 | 2010-12-28 | Sony Corporation | Digital rights management using trusted time |
-
2009
- 2009-11-30 CN CN200910238669.3A patent/CN102083194B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101061451A (en) * | 2004-11-18 | 2007-10-24 | 西门子公司 | Method for managing a time-limited license on a computer application that can be run on a network component |
| CN1968078A (en) * | 2006-09-29 | 2007-05-23 | 中兴通讯股份有限公司 | Method for clock synchronization of mobile multimedia broadcast receiving terminal |
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