CN101442799B - Method, system and apparatus for implementing synchronization of terminal with network side system time - Google Patents
Method, system and apparatus for implementing synchronization of terminal with network side system time Download PDFInfo
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- CN101442799B CN101442799B CN2008101840951A CN200810184095A CN101442799B CN 101442799 B CN101442799 B CN 101442799B CN 2008101840951 A CN2008101840951 A CN 2008101840951A CN 200810184095 A CN200810184095 A CN 200810184095A CN 101442799 B CN101442799 B CN 101442799B
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Abstract
The invention provides a method, system and device for implementing synchronous network side system time for terminal. Network side carries self system time in preset system time information and transmits it to terminal; then terminal receives the system time information; if it is the first time for the receiving time information after turning on, then the system time in the system time information is set to be local time, or it is calculated and stored that the difference between system time in system time information and local time; when for the present stored difference number is preset N, local time is regulated according to the N differences, thereby terminal regulates local time according to system time of network side to implement time synchronization of terminal and network side.
Description
Technical field
The present invention relates to mobile communication technology, particularly a kind of realization synchronization of terminal with network side system time method, system and device.
Background technology
In the mobile communication technology field, insert in (TD-SCDMA:Time Division-Synchronous Code Division Multiple Access) system or Wideband Code Division Multiple Access (WCDMA) access (WCDMA:Wideband Code Division Multiple Access) system such as TD SDMA, the synchronization of terminal with network side system time, it is the system time that terminal is obtained network side, realize in time making terminal in time receive the applied business that some depend on system time synchronously with network side, such as, the news hookup program begins at 19:00, finish at 19:30, if terminal and network side are synchronous, then the user of this terminal is by checking the local zone time of terminal, when this local zone time is 19:00, can receive news hookup on time.
Yet, at present in TD-SCDMA system or WCDMA system, also do not exist network side self system time to be sent to the mechanism of terminal, and because the unidirectional descending characteristics of radio network, terminal can not be to the network side Request System time, so, cause terminal can't obtain the system time of network side, and then can't realize synchronously that like this, terminal can only be with reference to the local zone time of self setting in time with network side.
Usually, the local zone time that terminal self is set and the system time of network side have a certain distance, this will produce a problem, the local zone time of setting such as terminal self fast one hour than the system time of network side, like this, when the user need answer news hookup, the user was will be owing to lead time can not receive news hookup between the 19:00 to 19:30 at the local zone time of terminal, and then reduces user's experience property.
Summary of the invention
The invention provides a kind of realization synchronization of terminal with network side system time method, system, terminal, RNC and base station, help the system time that terminal is obtained network side, realize that terminal and network side are synchronous.
A kind of realization synchronization of terminal with network side system time method comprises:
Network side is carried at self system time in the default system time information and sends to terminal, wherein, if network side is radio network controller (RNC), then system time information that should be default provides a cell of the system time of network side for being used to of increasing in the unmodified business information of the business information revised at multimedia broadcast-multicast service MBMS or multimedia broadcast-multicast service MBMS; If network side is base station node B, then system time information that should be default provides a cell of the system time of network side for being used to of increasing in system information SIB7;
Described terminal receives this system time information, if it is current for receiving for the first time after the start, be local zone time then with the system time setting in this system time information, otherwise, calculate and store the system time in this system time information and the difference of local zone time, in the number of the difference of current storage during for default number N, according to this N difference adjustment local zone time.
A kind of synchronization of terminal with network side system of system time that realizes comprises: network equipment and terminal; Wherein,
Described network equipment is used for that self system time is carried at default system time information and sends to described terminal, wherein, when network equipment was RNC, this default system time information provided a cell of the system time of network side for being used to of increasing in the unmodified business information of the business information revised at MBMS or MBMS; When network side was Node B, this default system time information provided a cell of the system time of network side for being used to of increasing in SIB7;
Described terminal is used to receive this system time information, if it is current for receiving for the first time after the start, be local zone time then with the system time setting in this system time information, otherwise, calculate and store the system time in this system time information and the difference of local zone time, in the number of the difference of current storage during for default number N, according to this N difference adjustment local zone time.
A kind of terminal comprises: receiving element, reception number of times judging unit, first adjustment unit and second adjustment unit; Wherein,
Described receiving element is used to receive the system time information of network side, wherein, when network side was RNC, this system time information provided a cell of the system time of network side for being used to of increasing in the unmodified business information of the business information revised at MBMS or MBMS; When network side was Node B, this system time information provided a cell of the system time of network side for being used to of increasing in SIB7;
Described reception number of times judging unit be used to judge described receiving element current whether be the start primary reception in back, if, send first and adjust and be notified to described first adjustment unit, otherwise, send second and adjust and be notified to described second adjustment unit;
Described first adjustment unit is used for after receiving the described first adjustment notice, is local zone time with the system time setting in the system time information of described receiving element reception;
Described second adjustment unit receive second adjust notice after, calculate and store the system time and the difference of local zone time in this system time information, in the number of the difference of current storage during for default number N, according to this N difference adjustment local zone time.
Therefore, in realization synchronization of terminal with network side system time method provided by the invention, system, terminal, RNC and the base station, when network side was RNC, this RNC was carried at of increasing newly in the unmodified business information of business information that MBMS revised or MBMS with self system time and is used for providing a cell of the system time of network side to send to terminal; Perhaps working as network side is Node B, then Node B is carried at of increasing newly among the SIB7 with self system time and is used for providing the cell of the system time of network side to send to terminal, so, terminal is current when receiving for the first time for start back, be local zone time then with the entrained system time setting of cell that receives, otherwise, the difference of calculating and storing entrained system time of this cell and local zone time, in the number of the difference of current storage during for default number N, adjust local zone time according to this N difference, can realize the system time adjustment local zone time of terminal according to network side, reach in time synchronously with realization and network side, also make the user can accurately receive the service of expection by the local zone time of checking terminal.
Description of drawings
The basic skills flow chart that Fig. 1 provides for the embodiment of the invention;
The detailed method flow chart that Fig. 2 provides for the embodiment of the invention;
Another detailed method flow chart that Fig. 3 provides for the embodiment of the invention;
The system construction drawing that Fig. 4 provides for the embodiment of the invention;
The terminal schematic diagram that Fig. 5 provides for the embodiment of the invention;
The RNC structural representation that Fig. 6 provides for the embodiment of the invention;
The architecture of base station schematic diagram that Fig. 7 provides for the embodiment of the invention.
Embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, describe the present invention below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the basic skills flow chart that Fig. 1 provides for the embodiment of the invention.As shown in Figure 1, this flow process may further comprise the steps:
The system time and the difference of local zone time in this system time information calculated and stored to step 104, terminal, in the number of the difference of current storage during for default number N, according to this N difference adjustment local zone time.So, can realize the operation of synchronization of terminal with network side system time.
Need to prove that the network side in the step 101 can be radio network controller (RNC:RadioNetwork Controller) or base station (Node B).Wherein, if network side is RNC, then above-mentioned default system time information can have multiple way of realization, as can be in the business information (Modified Services Information) that multimedia broadcast-multicast service (MBMS) has been revised being used to of increasing a cell of the system time of network side is provided, being used to of perhaps increasing in the unmodified business information of MBMS (Unmodified Services Information) provides the cell etc. of the system time of network side, and present embodiment specifically limits this.
Preferably, in the present embodiment, if network side is RNC, then above-mentioned default system time information provides a cell of the system time of network side for the business information revised at MBMS or being used to of increasing in the unmodified business information of MBMS.Wherein, business information and the unmodified business information of MBMS revised of MBMS all belongs to MBMS business control channel (MCCH) message.For improving professional stability, RNC can send MCCH information in each cycle (this cycle can be described as the modification cycle), and the unmodified business information of business information that the MBMS of MCCH information has revised in each modification cycle and MBMS all must send to terminal.So, present embodiment can make things convenient for terminal to obtain the system time of network side by a cell that increases the system time that is used to provide network side in the unmodified business information of the business information revised at MBMS or MBMS as default system time information.
If network side is the base station, then above-mentioned default system time information also can have multiple implementation, as can be being used to of in system information block type 7 (SIB7) or other system information, increasing the cell etc. of the system time of network side is provided, present embodiment does not limit this.
Preferably, if network side is the base station, then above-mentioned default system time information can be being used to of increasing in SIB7 provide a cell of the system time of network side.Wherein, SIB7 can comprise fast-changing parameter, and the change information of the parameter that is comprised among the SIB7 is unlike other SIB, as SIB5, SIB11 etc. trigger by Value Tag, but come periodic triggers by timer expiry, so, by in SIB7, carrying the system time of network side, can improve the precision of network side and terminal synchronizes.
Owing to comprise the sub-cell of one-level, the sub-cell of secondary etc. among business information that business information, MBMS that MBMS has revised are unmodified or the SIB7, here, being used to of increasing provides the similar of cell of system time of network side in the sub-cell of one-level, size can be 36 bits (bit), and the position that is provided with can be random, and present embodiment does not limit this.
Below in conjunction with specific embodiment said method provided by the present invention is described in detail.The detailed method flow chart that Fig. 2 provides for the embodiment of the invention.With the network side is RNC, and a cell that increases the system time be used to provide network side in the business information that MBMS has revised is an example, and as shown in Figure 2, this flow process may further comprise the steps:
Particularly, step 201 can be: RNC provides the cell of the system time of network side to send to terminal self system time being used for of adding that business information that MBMS revised increases newly to.
Need to prove, though the business information that MBMS has revised all must be carried in the MCCH information in each modification cycle and send to terminal, but for saving channel resource, being used to of increasing in the business information that present embodiment can MBMS have been revised provides the attribute of a cell of the system time of network side to be set to optional, so, can realize that network side is not all to need system time is carried in the business information that this MBMS revised to send to terminal when the business information that each MBMS of transmission has revised.Preferably, it is optional that present embodiment can provide the attribute of cell of the system time of network side according to being used to of increasing newly in the business information of having revised at MBMS, the transmission cycle of system time is set, when the transmission of the system time that arrives this setting during the cycle, then RNC is carried at self system time in the business information that MBMS revised and sends to terminal, wherein, the transmission cycle of the system time of this setting can be relevant with the modification cycle of MCCH information, multiple way of realization can be arranged, send to terminal as every a modification cycle system time being carried in the business information that MBMS revised, perhaps every several (as 2,3 etc.) the modification cycle is carried at system time in the business information that MBMS revised and sends to terminal etc., and present embodiment does not limit this.If the transmission cycle of default system time is a modification cycle, step 201 specifically can be RNC and self system time is carried in the business information that MBMS revised every a modification cycle and sends to terminal.
In the present embodiment, RNC can obtain the system time of self in real time by global positioning system (GPS:Global PositioningSystem) or agps system (AGPS:Assisted Global Positioning System).
Here, for saving the resource of terminal, the receiving cycle of terminal receiving system temporal information can be set, so, terminal receives the business information that MBMS has revised with this receiving cycle, wherein, the transmission cycle of default system time can be identical in this receiving cycle and the above-mentioned steps 201, also can be different.
Step 204, the system time setting in the business information that this MBMS has been revised is a local zone time.Afterwards, return execution in step 202.
The system time in the business information that this MBMS revised and the difference of local zone time are calculated and stored to step 206.
Here, can be 5 such as N according to realizing that terminal and the synchronous experience of RNC be provided with default number N, perhaps be 8 etc.
In the present embodiment, if N is 5, and if the difference of current storage be 100 milliseconds (ms), 10ms, 5000ms ,-200ms and 500ms, the number that then can judge the difference of current storage is 5, just in time reaches default number, then execution in step 208.
Here, can be according to realizing that terminal and the synchronous experience of network side are provided with preset value.
In the present embodiment, if above-mentioned default number N is 5, preset value is 1000ms, and 5 differences of current storage are 100ms, 10ms, and 5000ms ,-200ms and 500ms then can judge difference 5000ms greater than preset value 1000ms, and remaining is all less than preset value.
Here, if draw difference 5000ms greater than preset value 1000ms, then abandon difference 5000ms, the computing formula of the mean value of all remaining differences (abbreviating A as) is as follows:
As seen, step 207 to step 209 is smoothing processing that terminal is carried out the difference that calculates.
Need to prove that present embodiment perhaps after step 212, can abandon each difference of current storage after execution in step 210, so that the follow-up local zone time of adjusting again of terminal returns step 202 afterwards again.
The foregoing description is to increase a cell that is used to provide the system time of network side in the business information of having revised at MBMS, present embodiment also can increase a cell that is used to provide the system time of network side in the unmodified business information of MBMS, specifically the business information that the MBMS in step 201, step 202, step 204, the step 205 can have been revised replaces with the unmodified business information of MBMS, other steps are constant, repeat no more here.
Also need to prove, in the foregoing description, can also network side be the base station, increasing by one in SIB7, to be used to provide the cell of the system time of network side be that example realizes that network side and terminal reach synchronous on system time, specifically can be referring to Fig. 3, another detailed method flow chart that Fig. 3 provides for present embodiment.As shown in Figure 3, this flow process can may further comprise the steps:
Step 304 is a local zone time with the system time setting among this SIB.
Step 305 judges whether to receive and the identical system time of system time among this SIB, if, then abandon the system time among this SIB, return step 302, otherwise, store the system time among this SIB, execution in step 306.
Step 306 is identical with step 206, repeats no more here.
Step 307 judges whether the number of the difference of current storage is default number N, if, execution in step 308, otherwise, execution in step 302 returned.
Step 309 is identical to step 212 with step 209 respectively to step 312, repeats no more here.
Need to prove, after execution in step 310, perhaps after step 312, can abandon each difference of current storage, so that the follow-up local zone time of adjusting again of terminal returns step 302 afterwards again.
More than be the detailed description that method provided by the present invention is carried out, the system to the realization synchronization of terminal with network side system time provided by the present invention is described in detail below.
Referring to Fig. 4, the system construction drawing that Fig. 4 provides for the embodiment of the invention.As shown in Figure 4, this system can comprise: network equipment 401 and base station 402.
Wherein, network equipment 401 is used for that self system time is carried at default system time information and sends to terminal 402.
Preferably, when network equipment 401 was RNC, this default system time information provided a cell of the system time of network side for being used to of increasing in the unmodified business information of the business information revised at MBMS or MBMS; When network equipment 401 was Node B, this default system time information provided a cell of the system time of network side for being used to of increasing in SIB7.
Terminal 402 receives this system time information, if it is current for receiving for the first time after the start, be local zone time then with the system time setting in this system time information, otherwise, calculate and store the system time in this system time information and the difference of local zone time, in the number of the difference of current storage during for default number N, according to this N difference adjustment local zone time.
Wherein, terminal 402 can have multiple way of realization when specific implementation, referring to Fig. 5, and the terminal schematic diagram that Fig. 5 provides for the embodiment of the invention.As shown in Figure 5, this terminal can comprise: receiving element 501, reception number of times judging unit 502, first adjustment unit 503 and second adjustment unit 504.
Wherein, receiving element 501 is used to receive the system time information of network side.Wherein, when network side was RNC, this system time information can be being used to of increasing in the unmodified business information of the business information that MBMS has revised or MBMS provided a cell of the system time of network side; When network side was the base station, this system time information can be being used to of increasing in SIB7 provided a cell of the system time of network side.
Receive number of times judging unit 502 and be used to judge whether receiving element 501 current receptions are the primary reception in back of starting shooting, if, send first adjustment and be notified to first adjustment unit 503, otherwise, send second adjustment and be notified to described second adjustment unit 504.
Preferably, as shown in Figure 5, terminal also can comprise: system time judging unit 505 and memory cell 506.
Wherein, system time judging unit 505 is connected and receives between the number of times judging unit 502 and second adjustment unit 504, be used to receive described second and adjust notice, and judge whether the system time in the system time information of receiving element 501 current receptions is identical with the system time that received the last time of memory cell 506 storages, if, then abandon the system time in this system time information, otherwise, system time in the system time information of receiving element 501 receptions is stored in the memory cell 506, and adjust the notice forwarding with second and give second adjustment unit 504.
Preferably, as shown in Figure 5, second adjustment unit 504 can comprise: computation subunit 5041, storing sub-units 5042 and adjustment subelement 5043.
Wherein, computation subunit 5041 be used for receive second adjust notice after, calculate the system time and the difference of local zone time in this system time information, the difference of calculating is sent to storing sub-units 5042 stores.
Storing sub-units 5042 is used for receiving and storing this difference, and when the number of the difference of current storage reaches default number, sends the 3rd and adjusts to be notified to and adjust subelement 5043.
Adjusting subelement 5043 is used for after receiving the 3rd adjustment notice, each difference at storing sub-units 5042 current storages, judge that whether this difference is more than or equal to preset value, if, trigger storing sub-units 5042 and abandon this difference, calculate the mean value of all remaining in the storing sub-units 5042 differences then, with local zone time and this mean value and as local zone time, otherwise, calculate the mean value of difference of the default number of storing sub-units 5042 storages, with local zone time and this mean value and as local zone time.
Preferably, network equipment 401 can have multiple way of realization when specific implementation.Particularly, can be RNC or base station etc. as this network equipment.Referring to Fig. 6, the RNC structural representation that Fig. 6 provides for present embodiment.As shown in Figure 6, this RNC can comprise: RNC is provided with unit 601 and RNC transmitting element 602.
Wherein, RNC is provided with that unit 601 is used for the business information revised at MBMS or the unmodified business information of MBMS increases the cell that system time is provided.
Referring to Fig. 7, the architecture of base station schematic diagram that Fig. 7 provides for present embodiment.As shown in Figure 7, this base station comprises: the base station is provided with unit 701 and base station transmitting element 702.
Wherein, the base station is provided with unit 701 and is used for increasing a cell that is used to provide system time at SIB7.
Base station transmitting element 702 is used for that system time is carried at the cell that the base station is provided with unit 701 and increases and sends to terminal.
Need to prove, owing to comprise a plurality of cells among business information that business information that MBMS has revised or MBMS are unmodified or the SIB7, the sub-cell of one-level is wherein arranged, and the sub-cell of secondary that comprised of the sub-cell of this one-level etc., above-mentioned RNC is provided with unit 601 or base station and the similar of the cell that unit 701 increases is set in the sub-cell of one-level, and the form of the cell of increase is 36bit.
In sum, in realization synchronization of terminal with network side system time method provided by the invention, system, terminal, RNC and the base station, when network side was RNC, this RNC was carried at of increasing newly in the unmodified business information of business information that MBMS revised or MBMS with self system time and is used for providing a cell of the system time of network side to send to terminal; Perhaps working as network side is Node B, then Node B is carried at of increasing newly among the SIB7 with self system time and is used for providing the cell of the system time of network side to send to terminal, so, terminal is current when receiving for the first time for start back, be local zone time then with the entrained system time setting of cell that receives, otherwise, the difference of calculating and storing entrained system time of this cell and local zone time, in the number of the difference of current storage during for default number N, adjust local zone time according to this N difference, can realize the system time adjustment local zone time of terminal according to network side, reach in time synchronously with realization and network side, also make the user can accurately receive the service of expection by the local zone time of checking terminal.
The above only is preferred embodiment of the present invention, and is in order to restriction the present invention, within the spirit and principles in the present invention not all, any modification of being made, is equal to replacement, improvement etc., all should be included within the scope of protection of the invention.
Claims (8)
1. realize synchronization of terminal with network side system time method for one kind, it is characterized in that this method comprises:
Network side is carried at self system time in the default system time information and sends to terminal, wherein, if network side is radio network controller (RNC), then system time information that should be default provides a cell of the system time of network side for being used to of increasing in the unmodified business information of the business information revised at multimedia broadcast-multicast service MBMS or multimedia broadcast-multicast service MBMS; If network side is base station node B, then system time information that should be default provides a cell of the system time of network side for being used to of increasing in system information SIB7;
Described terminal receives this system time information, if it is current for receiving for the first time after the start, be local zone time then with the system time setting in this system time information, otherwise, calculate and store the system time in this system time information and the difference of local zone time, in the number of the difference of current storage during for default number N, according to this N difference adjustment local zone time.
2. method according to claim 1 is characterized in that, this method further comprises: the transmission cycle that sets in advance system time;
When the transmission that arrives the described system time that the sets in advance during cycle, the system time of network side is carried in the cell of this increase.
3. method according to claim 1 and 2, it is characterized in that, described terminal is after the receiving system temporal information, and before the system time in calculating and storage system temporal information and the difference of local zone time, further comprise: judge that the system time whether system time in the system time information of current reception receive with the last time is identical, if, then abandon the system time in this system time information, otherwise, store the system time in this system time information, the operation of the system time in continuation execution calculating and the storage system temporal information and the difference of local zone time;
And/or,
The difference of the default number of described basis is adjusted local zone time and is comprised:
Each difference at current storage, whether the absolute value of judging this difference is more than or equal to preset value, if, abandon this difference, calculate the mean value of all remaining differences then, with local zone time and this mean value and as local zone time, otherwise, calculate the mean value of difference of the default number of current storage, with local zone time and this mean value and as local zone time.
4. method according to claim 3 is characterized in that, described with local zone time and mean value and as local zone time after, further comprise: all differences of deleting current storage.
5. realize the synchronization of terminal with network side system of system time for one kind, it is characterized in that this system comprises: network equipment and terminal; Wherein,
Described network equipment is used for that self system time is carried at default system time information and sends to described terminal, wherein, when network equipment was RNC, this default system time information provided a cell of the system time of network side for being used to of increasing in the unmodified business information of the business information revised at MBMS or MBMS; When network equipment was Node B, this default system time information provided a cell of the system time of network side for being used to of increasing in SIB7;
Described terminal is used to receive this system time information, if it is current for receiving for the first time after the start, be local zone time then with the system time setting in this system time information, otherwise, calculate and store the system time in this system time information and the difference of local zone time, in the number of the difference of current storage during for default number N, according to this N difference adjustment local zone time.
6. a terminal is characterized in that, this terminal comprises: receiving element, reception number of times judging unit, first adjustment unit and second adjustment unit; Wherein,
Described receiving element is used to receive the system time information of network side, wherein, when network side was RNC, this system time information provided a cell of the system time of network side for being used to of increasing in the unmodified business information of the business information revised at MBMS or MBMS; When network side was Node B, this system time information provided a cell of the system time of network side for being used to of increasing in SIB7;
Described reception number of times judging unit be used to judge described receiving element current whether be the start primary reception in back, if, send first and adjust and be notified to described first adjustment unit, otherwise, send second and adjust and be notified to described second adjustment unit;
Described first adjustment unit is used for after receiving the described first adjustment notice, is local zone time with the system time setting in the system time information of described receiving element reception;
Described second adjustment unit receive second adjust notice after, calculate and store the system time and the difference of local zone time in this system time information, in the number of the difference of current storage during for default number N, according to this N difference adjustment local zone time.
7. terminal according to claim 6 is characterized in that, described terminal also comprises: system time judging unit and memory cell; Wherein,
Described system time judging unit is connected and receives between the number of times judging unit and second adjustment unit, be used to receive described second and adjust notice, and judge that the system time whether system time in the system time information of the current reception of described receiving element receive with the last time of described cell stores is identical, if, then abandon the system time in this system time information, otherwise, system time in the system time information of described receiving element reception is stored in the described memory cell, and adjust the notice forwarding with described second and give described second adjustment unit;
Described memory cell is used for the storage system time.
8. terminal according to claim 7 is characterized in that, described second adjustment unit comprises: computation subunit, storing sub-units and adjustment subelement; Wherein,
Described computation subunit be used for receive second adjust notice after, calculate the system time and the difference of local zone time in this system time information, the difference of calculating is sent to described storing sub-units stores;
Described storing sub-units is used for receiving and storing this difference, and when the number of the difference of current storage reaches default number, sends the 3rd and adjusts and be notified to described adjustment subelement;
Described adjustment subelement is used for after receiving described the 3rd adjustment notice, each difference at the current storage of described storing sub-units, whether the absolute value of judging this difference is more than or equal to preset value, if, trigger described storing sub-units and abandon this difference, calculate the mean value of all remaining in described storing sub-units differences then, with local zone time and this mean value and as local zone time, otherwise, calculate the mean value of difference of the default number of described storing sub-units storage, with local zone time and this mean value and as local zone time.
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| CN101754098B (en) | 2008-12-18 | 2013-04-03 | 电信科学技术研究院 | System time notifying method, system and device |
| CN101959147B (en) * | 2009-07-14 | 2014-12-10 | 中兴通讯股份有限公司 | Method and device for acquiring time information by mobile terminal |
| CN102045638B (en) * | 2009-10-09 | 2014-12-10 | 中国移动通信集团公司 | Method and equipment for time synchronization |
| CN102056283B (en) * | 2009-10-27 | 2013-10-16 | 电信科学技术研究院 | Method, system and device for time synchronization in mobile communication system |
| CN103973804B (en) * | 2014-05-19 | 2017-05-03 | 广东欧珀移动通信有限公司 | Method and device for setting terminal time |
| 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 |
| CN109743127B (en) * | 2019-01-04 | 2021-01-26 | 四川金互通科技股份有限公司 | Information code processing method, electronic equipment and storage medium |
| CN110620632B (en) | 2019-09-12 | 2021-02-23 | 华为技术有限公司 | Time synchronization method and device |
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Effective date of registration: 20170829 Address after: 100070, No. 188, building 25, No. eighteen, South Fourth Ring Road, Fengtai District, Beijing, 1, 101 Patentee after: Beijing Haiyun Technology Co. Ltd. Address before: 510663, No. 3, color road, Science City, Guangzhou Development Zone, Guangdong Patentee before: New Post Communication Equipment Co., Ltd. |