CN1825780A - Method of SRNC regulating data transmitting-down time - Google Patents
Method of SRNC regulating data transmitting-down time Download PDFInfo
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- CN1825780A CN1825780A CN 200510008775 CN200510008775A CN1825780A CN 1825780 A CN1825780 A CN 1825780A CN 200510008775 CN200510008775 CN 200510008775 CN 200510008775 A CN200510008775 A CN 200510008775A CN 1825780 A CN1825780 A CN 1825780A
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Abstract
This invention provides a method for adjusting data downward send time of SRNC including: obtaining data transmission time delays of the radio links of the interfaces between SRNC and the base station, adjusting the time window parameters corresponding to the radio links based on the data transmission time delays, determining a primary link based on the time delay, the SRNC adjusts its data downward send time based on the time adjustment control frame reported by the primary link.
Description
Technical field
The present invention relates to the wireless communication technique field, be specifically related to a kind of SRNC and adjust the data distributing time method.
Background technology
In wireless communication system, safeguarding the window that data receive in the base station, be called time window usually, the base station receives schematic diagram that RNC (radio network controller) issues data as shown in Figure 1 by time window.
Among Fig. 1, the data that RNC issues should drop within the time window of base station, when the data that issue as RNC drop on outside the time window, the base station can be passed through to send out a time on the in-band signalling process of FP (Frame Protocol) definition of IUB (a kind of standard interface) interface and adjust control frame to RNC, and this time is adjusted and has the actual moment of base station and the difference TOA of time window terminal point of arriving of data in control frame.The RNC time of receipt (T of R) is adjusted after the control frame, and corresponding adjustment data distributing is constantly so that drop within the time window data, to reduce the cache-time of data in the base station.
Under macro diversity mode, there is multi wireless links between UE and the base station, the link that has many IUB or IUR (a kind of standard interface) interface between SRNC (service wireless network controller) and the base station, an independently time window is all safeguarded to every link in the base station, under parameter TOAWE of this window (terminal point of time window) and TOAWS (starting point of time window) are disposed when setting up Radio Link by SRNC.Because Radio Link time corresponding window parameter was configured in the base station before user's face is finished synchronously, so, if SRNC differs bigger to the propagation delay time between the different base station, then SRNC moment of issuing data is difficult to drop on simultaneously in the time window of a plurality of base stations, and SRNC can drop on the time of uploading the outer base station of time window and adjusts control frame and adjust the time that it issues data according to issuing data.SRNC adjusts the very likely vibration of time of occurrence adjustment of time that issues data, and generation time table tennis is adjusted, and influences stability of data transmission.
At present, under the time macro diversity mode, for avoiding SRNC data are issued the table tennis adjustment of time, SRNC adjusts the data distributing time method and mainly contains two kinds:
Method one: based on the adjustment mode of minimum TOA, promptly each of reporting according to the base station of SRNC is adjusted TOA minimum in control frame and adjusts the time that it issues data time.
Set and to have two soft handover legs between SRNC and the base station, the TOA that two branch roads report is respectively TOA1 and TOA2, and it is as shown in table 1 that SRNC selects TOA to make the foundation that the time adjusts.
Table 1
| The relation of TOA1 and TOA2 | The selection of SRNC TOA |
| TOA1＜TOA2＜0 | Select TOA1 to send data in advance |
| TOA2＜TOA1＜0 | Select TOA2 to send data in advance |
| TOA1＜0，TOA2＞0 | Select TOA1 to send data in advance |
| TOA2＜0，TOA1＞0 | Select TOA2 to send data in advance |
| TOA1＞TOA2＞0 | Select TOA2 to come the delayed delivery data |
| TOA2＞TOA1＞0 | Select TOA1 to come the delayed delivery data |
Less when the time delay of branch road one, when the time delay of branch road two was big, the transfer of data between SRNC and the base station as shown in Figure 2.Among Fig. 2, the data that SRNC issues simultaneously drop in the time window of base station 1, and control frame is adjusted in base station 1 not return time, branch road two is because time delay is bigger, issue data and drop on outside the time window of base station 2, base station 2 return times are adjusted control frame, require SRNC to issue data in advance.
The time that SRNC returns according to base station 2 is adjusted TOA in the control frame and issues data in advance and may cause as shown in Figure 3, before the data of branch road one drop on the time window of base station 1, the data of branch road two drop in the time window of base station 2, branch road one return time is adjusted control frame and is required issuing of SRNC delayed data, thereby the time table tennis that causes SRNC to issue data is adjusted.
Method two: the time based on maximum transmitted time delay branch road is adjusted mode.
SRNC can obtain the data round trip transmission delay of each branch road according to transport channel synchronization or node synchronizing process, the benchmark branch road that SRNC selects the branch road of propagation delay time maximum to adjust as the data distributing time in all branch roads, SRNC only adjusts the time that control frame is adjusted data distributing according to this benchmark branch road time corresponding, other branch road time corresponding is adjusted control frame do not handle.
This method has avoided SRNC that the table tennis that data issue the time is adjusted phenomenon, but, when two branch road time delays differ big, transfer of data between SRNC and the base station as shown in Figure 4, before the data of the branch road that time delay is little drop on the time window of base station, the adjustment control frame calls time in this branch road meeting constantly, require the SRNC delayed data to issue the time, the time adjustment control frame of this frequent transmission has taken the transmission bandwidth between base station and the SRNC, thereby, influence normal transfer of data, wasted Internet resources.
Summary of the invention
The objective of the invention is to, provide a kind of SRNC to adjust the data distributing time method, phenomenon adjusted by the table tennis that data is issued the time with the SRNC that avoids existing in the prior art and the frequent transmission time is adjusted the phenomenon that control frame influence normal data transfer, has realized the purpose of conserve network resources, raising data transmission stability.
For achieving the above object, a kind of SRNC provided by the invention adjusts the data distributing time method, comprising:
A, obtain the data transmission delay of each Radio Link of SRNC and inter-base station interface;
B, adjust each Radio Link time corresponding window parameter according to the data transmission delay of each Radio Link;
C, determine reference link according to the data transmission delay of described each Radio Link;
The time that d, SRNC report according to described reference link is adjusted control frame and adjusts its data distributing time.
SRNC and inter-base station interface comprise among the described step a: IUB interface, IUR interface.
Described step a further comprises:
When setting up the Radio Link of SRNC and inter-base station interface, SRNC determines the data transmission delay of the Radio Link of described foundation according to time that sends the down-going synchronous frame and the time of receiving the uplink synchronous frame that base station transmits is come, and stores.
Described step b further comprises:
B1, determine maximum transmitted delay variation between each Radio Link according to the data transmission delay of described each Radio Link;
B2, adjust each link time corresponding window parameter according to described maximum transmitted delay variation.
Described step b1 further comprises:
When the Radio Link of described interface changes, determine maximum transmitted delay variation between each Radio Link according to the data transmission delay of current each Radio Link of described interface.
Described Radio Link changes and comprises: increase Radio Link, deletion Radio Link.
Described step b2 further comprises:
Adjust the corresponding current time window origin parameters of each Radio Link with the maximum delay shake sum of each Radio Link respectively according to described maximum transmitted delay variation.
Described step b2 further comprises:
Described maximum transmitted delay variation is shaken sum with the maximum delay of each Radio Link respectively be carried in the Frame Protocol in-band signalling of SRNC, transfer to the base station, and adjust the current time window origin parameters of each Radio Link correspondence.
Adjusting each Radio Link time corresponding window origin parameters among the described step b2 further comprises:
Judge the current time window origin parameters of each Radio Link correspondence, the maximum transmitted delay variation of Radio Link correspondence and the maximum delay shake sum of this Radio Link, the size of the time window origin parameters when Radio Link is set up respectively;
When the current time of Radio Link correspondence window origin parameters during greater than the maximum delay shake sum of the maximum transmitted delay variation of this Radio Link correspondence and this Radio Link, the maximum transmitted delay variation that the current time window origin parameters of this Radio Link correspondence is adjusted into this Radio Link correspondence is shaken sum with the maximum delay of this Radio Link;
When the maximum delay shake sum of the current time of Radio Link correspondence window origin parameters less than maximum transmitted delay variation and this Radio Link of this Radio Link correspondence, and during the time window origin parameters when described sum is set up less than this Radio Link, this Radio Link time corresponding window origin parameters is adjusted into the maximum delay shake sum of described maximum transmitted delay variation and this Radio Link;
When the maximum delay shake sum of the current time of Radio Link correspondence window origin parameters less than maximum transmitted delay variation and this Radio Link of this Radio Link correspondence, and during the time window origin parameters when described sum is set up more than or equal to this Radio Link, the time window origin parameters when this Radio Link time corresponding window origin parameters is adjusted into this Radio Link and sets up.
Described step c further comprises:
Determine the maximum transmitted time delay according to the data transmission delay of described each Radio Link;
The Radio Link of described maximum transmitted time delay correspondence is defined as reference link.
Description by technique scheme as can be known, the present invention is by adjusting each Radio Link time corresponding window parameter, make SRNC adjust control frame adjustment data distributing according to the time during time, avoid issuing data as far as possible and drop on phenomenon outside the Radio Link time corresponding window, therefore, the phenomenon that influences normal data transfer of having avoided the base station to call time and adjust control frame and cause on frequent; The present invention adjusts the data distributing time by adjusting control frame according to the time of reference link, has avoided SRNC that the table tennis that data issue the time is adjusted phenomenon; The present invention is by when Radio Link changes, adjust each Radio Link time corresponding window origin parameters with the link maximum jitter time delay sum of each Radio Link respectively according to the maximum transmitted delay variation between each Radio Link, make each the Radio Link time corresponding window parameter among the present invention can realize dynamic self adaptation adjustment, like this, SRNC adjusts control frame according to the time of reference link and adjusts the data distributing time, can guarantee all the time that the data that SRNC issues drop in each time window; The present invention transfers to the base station by the FP in-band signalling that expands with the time window parameter, and the order base station adjusts the time window parameter of each Radio Link according to this in-band signalling, makes technical scheme of the present invention be easy to realize; The present invention passes through the adjustment restriction to the current time window parameter of each Radio Link, has effectively avoided the deterioration phenomenon of data transmission delay end to end; Thereby realized conserve network resources, improved the purpose of data transmission stability by technical scheme provided by the invention.
Description of drawings
Fig. 1 is that the base station receives the schematic diagram that RNC issues data by time window;
Fig. 2 is that SRNC adjusts data distributing time diagram 1 in the prior art;
Fig. 3 is that SRNC adjusts data distributing time diagram 2 in the prior art;
Fig. 4 is that SRNC adjusts data distributing time diagram 2 in the prior art;
Fig. 5 is the flow chart that SRNC of the present invention adjusts the data distributing time.
Embodiment
If SRNC only adjusts the data distributing time according to reference link, and the data that are issued to the base station according to the adjusted data distributing time can drop in each time window as far as possible, just can effectively avoid SRNC data to be issued the table tennis adjustment of time and transmission of radio links delay variation when big, the phenomenon that influences normal data transfer that calls time and adjust control frame and cause on the base station is frequent.
Therefore, core of the present invention is: the data transmission delay that obtains each Radio Link of SRNC and inter-base station interface, adjust each Radio Link time corresponding window parameter according to the data transmission delay of each Radio Link, data transmission delay according to described each Radio Link is determined reference link, and the time that SRNC reports according to described reference link is adjusted control frame and adjusts its data distributing time.
Based on core concept of the present invention technical scheme provided by the invention is further described below.
The present invention need adjust each Radio Link time corresponding window parameter and determine reference link according to the data transmission delay of each Radio Link, and therefore, the SRNC among the present invention at first needs to obtain the data transmission delay of each Radio Link.
SRNC obtain each Radio Link data transmission delay method can for: when setting up the Radio Link of SRNC and inter-base station interface, in the transport channel synchronization process, SRNC writes down its moment T that sends the down-going synchronous frame
Down_syncWith the moment T that receives the uplink synchronous frame that base station transmits is come
Uplink_syncIf the Radio Link of above-mentioned foundation is the i wireless links, then the data transmission delay of this i wireless links is:
Rtt
i＝T
uplink_sync-T
down_sync。
SRNC is by storing the T of each Radio Link when setting up
Down_syncAnd T
Unlink_sync, or by directly storing the data transmission delay Rtt of each Radio Link
i, when adjusting each Radio Link time corresponding window parameter and determining base station link, can obtain the data transmission delay of each Radio Link easily.
When adjusting each Radio Link time corresponding window parameter, the present invention determines the data transmission delay of each Radio Link respectively according to the above-mentioned information of SRNC storage, and determines the maximum transmitted delay variation between each link.SRNC determines each Radio Link time corresponding window origin parameters respectively with the maximum delay shake sum of each Radio Link respectively according to the maximum transmitted delay variation, and adjusts the time window origin parameters of each time window respectively according to this each time window origin parameters of determining.
The method that SRNC adjusts the time window origin parameters of each time window can realize by the in-band signalling that expands among the FP (Frame Protocol).
Be specially: in-band signalling is set in FP, and this in-band signalling can carry above-mentioned each definite Radio Link time corresponding window origin parameters, promptly this in-band signalling can carry the maximum transmitted delay variation respectively with the maximum delay of each Radio Link shake sum.This in-band signalling can order the base station to reconfigure each Radio Link time corresponding window according to the time window parameter of carrying in this in-band signalling.
SRNC is being carried on this in-band signalling with each Radio Link time corresponding window origin parameters, and this in-band signalling is transferred to the base station.After the base station receives the next time window parameter configuration control signaling of SRNC transmission, from this signaling, obtain each Radio Link time corresponding window origin parameters, determine the time window origin parameters that each Radio Link is present, when the time window origin parameters of this Radio Link of determining to carry during the current time window origin parameters of Radio Link is greater than in-band signalling, this Radio Link time corresponding window origin parameters is adjusted into the time window origin parameters of this Radio Link that carries in this in-band signalling.Time window origin parameters when this Radio Link of determining to carry during the current time window origin parameters of Radio Link is less than this in-band signalling, and during the time window origin parameters when the time window origin parameters of this Radio Link that carries in this in-band signalling is set up less than this Radio Link, this Radio Link time corresponding window origin parameters is adjusted into the time window origin parameters of this Radio Link that carries in this in-band signalling.The time window origin parameters of this Radio Link that carries in less than this in-band signalling when the current time window origin parameters of Radio Link, and during the time window origin parameters when the time window origin parameters of this Radio Link that carries in this in-band signalling is set up more than or equal to this Radio Link, the time window origin parameters when this Radio Link time corresponding window origin parameters is adjusted into this Radio Link and sets up.
SRNC also needed the Radio Link of data transmission delay maximum in each Radio Link is defined as reference link in current time that reconfigures Radio Link correspondence during window.
SRNC only adjusts the time that control frame is adjusted its data distributing according to the reference link time corresponding, the time of other Radio Links is adjusted control frame do not handle.Because the present invention shakes the time window origin parameters that sum is determined each time window according to maximum transmitted delay variation and maximum delay, so, SRNC is adjusting data distributing during the time according to the reference link of data transmission delay maximum, the data that SRNC is issued drop within each time window as much as possible, when having avoided data transmission delay difference at each branch road big as much as possible, call time on the base station is frequent and adjust the phenomenon of control frame.
When the present invention can change at the Radio Link of SRNC and inter-base station interface, adjust the current time window parameter of each Radio Link correspondence, and redefine reference link.Radio Link changes as increasing Radio Link or deletion Radio Link etc.Like this, the current time window parameter of each the Radio Link correspondence among the present invention can be carried out dynamic self adaptation adjustment, has guaranteed that further the data that SRNC issues drop within each time window.
The present invention is in current time of adjusting each Radio Link correspondence during the window origin parameters, for avoiding the bad phenomenon such as deterioration of end-to-end propagation delay time, the adjustment of window origin parameters limits to the current time, and promptly maximum transmitted delay variation between each Radio Link and maximum transmitted delay variation sum should be not more than the time window origin parameters that this Radio Link disposes when setting up.When maximum transmitted delay variation and maximum transmitted delay variation sum are not more than the time window origin parameters that Radio Link disposes when setting up, the current time window origin parameters of this Radio Link is adjusted into maximum transmitted delay variation and maximum transmitted delay variation sum.When time window origin parameters that maximum transmitted delay variation and maximum transmitted delay variation sum dispose when setting up greater than Radio Link, the time window origin parameters the when current time of this Radio Link, window origin parameters maximum can only be configured to set up.
The method of adjusting the data distributing data below in conjunction with 5 couples of SRNC of the present invention of accompanying drawing is elaborated.
In step 500, the Radio Link of SRNC and inter-base station interface changes, as increasing Radio Link, deletion Radio Link etc.
To step 510, SRNC is from the moment T of the transmission down-going synchronous frame of each Radio Link when setting up of its record storage
Down_syncWith the moment T that receives the uplink synchronous frame that base station transmits is come
Unlink_sync, obtain the data transmission delay Rtt of current each Radio Link
i=T
Unlink_sync-T
Down_sync
To step 520, determine the maximum transmitted delay variation T between current each Radio Link
Max_delay_diff=Max{abs (Rtt
i-Rtt
j), i wherein, j ∈ [1, n], n is current number of links.Determine the maximum traffic delay in current each Radio Link, and the maximum traffic delay link corresponding is defined as reference link.
To step 530, SRNC is defined as each Radio Link time corresponding window origin parameters respectively the T of this link correspondence
Max_delay_diff+ T
Jitter, T wherein
JitterMaximum delay shake for this Radio Link.
To step 540, SRNC is carried on the time window origin parameters of each Radio Link in the FP in-band signalling, transfers to the base station, is about to the time window origin parameters and is carried in the time window parameter configuration control signaling, transfers to the base station.
To step 550, the FP of base station obtains each the time window origin parameters that carries in this in-band signalling after receiving the next time window parameter configuration control signaling of SRNC transmission.
To step 560, judge corresponding with it the respectively time window origin parameters of Radio Link when setting up and the size of current time window origin parameters of each time window origin parameters of carrying in the signaling.
If the current time window origin parameters of Radio Link is greater than T
Max_delay_diff+ T
JitterOr the current time window origin parameters of Radio Link is less than T
Max_delay_diff+ T
JitterAnd T
Max_delay_diff+ T
JitterTime window origin parameters when setting up less than this Radio Link to step 570, reconfigures the time window origin parameters of this Radio Link, and this Radio Link time corresponding window origin parameters is adjusted into T
Max_delay_diff+ T
Jitter
If the current time window origin parameters of Radio Link is less than T
Max_delay_diff+ T
Jitter, and T
Max_delay_diff+ T
JitterTime window origin parameters when setting up more than or equal to this Radio Link to step 570, reconfigures the time window origin parameters of this Radio Link, the time window origin parameters when this Radio Link time corresponding window origin parameters is adjusted into this Radio Link and sets up.
If the current time window origin parameters of Radio Link equals T
Max_delay_diff+ T
Jitter,, this Radio Link time corresponding window parameter is not adjusted to step 561.
When SRNC receives after time that the base station reports adjusts control frame, to step 580, judge whether this time adjustment control frame is that the reference link time corresponding is adjusted control frame, if the reference link time corresponding is adjusted control frame, to step 590, determine in advance or lag behind to send data according to loaded information in this time adjustment control frame, and its data distributing time of corresponding adjustment.
In step 580, not that the reference link time corresponding is adjusted control frame if should adjust control frame the time, to step 581, its data distributing time is not adjusted.
Though described the present invention by embodiment, those of ordinary skills know, the present invention has many distortion and variation and does not break away from spirit of the present invention, as not only adjusting the time window origin parameters, not only adjust the choosing method etc. of time window origin parameters and reference link according to maximum transmitted time delay and maximum transmitted delay variation sum, the claim of application documents of the present invention comprises these distortion and variation.
Claims (10)
1, a kind of SRNC adjusts the data distributing time method, it is characterized in that, comprising:
A, obtain the data transmission delay of each Radio Link of SRNC and inter-base station interface;
B, adjust each Radio Link time corresponding window parameter according to the data transmission delay of each Radio Link;
C, determine reference link according to the data transmission delay of described each Radio Link;
The time that d, SRNC report according to described reference link is adjusted control frame and adjusts its data distributing time.
2, a kind of SRNC as claimed in claim 1 adjusts the data distributing time method, it is characterized in that SRNC and inter-base station interface comprise among the described step a: IUB interface, IUR interface.
3, a kind of SRNC as claimed in claim 1 adjusts the data distributing time method, it is characterized in that described step a further comprises:
When setting up the Radio Link of SRNC and inter-base station interface, SRNC determines the data transmission delay of the Radio Link of described foundation according to time that sends the down-going synchronous frame and the time of receiving the uplink synchronous frame that base station transmits is come, and stores.
4, a kind of SRNC as claimed in claim 1 adjusts the data distributing time method, it is characterized in that described step b further comprises:
B1, determine maximum transmitted delay variation between each Radio Link according to the data transmission delay of described each Radio Link;
B2, adjust each link time corresponding window parameter according to described maximum transmitted delay variation.
5, a kind of SRNC as claimed in claim 4 adjusts the data distributing time method, it is characterized in that described step b1 further comprises:
When the Radio Link of described interface changes, determine maximum transmitted delay variation between each Radio Link according to the data transmission delay of current each Radio Link of described interface.
6, a kind of SRNC as claimed in claim 5 adjusts the data distributing time method, it is characterized in that described Radio Link changes and comprises: increase Radio Link, deletion Radio Link.
7, adjust the data distributing time method as claim 4,5 or 6 described a kind of SRNC, it is characterized in that described step b2 further comprises:
Adjust the corresponding current time window origin parameters of each Radio Link with the maximum delay shake sum of each Radio Link respectively according to described maximum transmitted delay variation.
8, a kind of SRNC as claimed in claim 7 adjusts the data distributing time method, it is characterized in that described step b2 further comprises:
Described maximum transmitted delay variation is shaken sum with the maximum delay of each Radio Link respectively be carried in the Frame Protocol in-band signalling of SRNC, transfer to the base station, and adjust the current time window origin parameters of each Radio Link correspondence.
9, a kind of SRNC as claimed in claim 8 adjusts the data distributing time method, it is characterized in that, adjusts each Radio Link time corresponding window origin parameters among the described step b2 and further comprises:
Judge the current time window origin parameters of each Radio Link correspondence, the maximum transmitted delay variation of Radio Link correspondence and the maximum delay shake sum of this Radio Link, the size of the time window origin parameters when Radio Link is set up respectively;
When the current time of Radio Link correspondence window origin parameters during greater than the maximum delay shake sum of the maximum transmitted delay variation of this Radio Link correspondence and this Radio Link, the maximum transmitted delay variation that the current time window origin parameters of this Radio Link correspondence is adjusted into this Radio Link correspondence is shaken sum with the maximum delay of this Radio Link;
When the maximum delay shake sum of the current time of Radio Link correspondence window origin parameters less than maximum transmitted delay variation and this Radio Link of this Radio Link correspondence, and during the time window origin parameters when described sum is set up less than this Radio Link, this Radio Link time corresponding window origin parameters is adjusted into the maximum delay shake sum of described maximum transmitted delay variation and this Radio Link;
When the maximum delay shake sum of the current time of Radio Link correspondence window origin parameters less than maximum transmitted delay variation and this Radio Link of this Radio Link correspondence, and during the time window origin parameters when described sum is set up more than or equal to this Radio Link, the time window origin parameters when this Radio Link time corresponding window origin parameters is adjusted into this Radio Link and sets up.
10, adjust the data distributing time method as the described a kind of SRNC of arbitrary claim in the claim 1 to 6, it is characterized in that described step c further comprises:
Determine the maximum transmitted time delay according to the data transmission delay of described each Radio Link;
The Radio Link of described maximum transmitted time delay correspondence is defined as reference link.
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|---|---|---|---|
| CNB2005100087754A CN100426701C (en) | 2005-02-25 | 2005-02-25 | Method of SRNC regulating data transmitting-down time |
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|---|---|---|---|
| CNB2005100087754A CN100426701C (en) | 2005-02-25 | 2005-02-25 | Method of SRNC regulating data transmitting-down time |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101969689A (en) * | 2009-07-27 | 2011-02-09 | 中兴通讯股份有限公司 | Method for realizing time synchronization and method for obtaining dispatching information |
| CN101247156B (en) * | 2007-02-14 | 2012-09-05 | 中兴通讯股份有限公司 | Data synchronization implementing method |
| WO2014059764A1 (en) * | 2012-10-15 | 2014-04-24 | 华为技术有限公司 | Data sending method, receiving method and device |
| CN109428614A (en) * | 2017-08-30 | 2019-03-05 | 华为技术有限公司 | A kind of dynamic time method of adjustment, device and system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7227857B2 (en) * | 2002-06-21 | 2007-06-05 | Innovative Sonic Limited | Correction to HFN initialization for RB2 during SRNS relocation |
| CN1220395C (en) * | 2003-04-11 | 2005-09-21 | 大唐移动通信设备有限公司 | Method and device dfor realizing synchronization of interface business between base stution controller and base stations in radio commumnication system |
| US7376119B2 (en) * | 2003-04-25 | 2008-05-20 | Lucent Technologies Inc. | Method of controlling downlink transmission timing in communication systems |
| CN1324915C (en) * | 2003-08-15 | 2007-07-04 | 华为技术有限公司 | Time adjusting method for wireless network controller standard interface |
-
2005
- 2005-02-25 CN CNB2005100087754A patent/CN100426701C/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247156B (en) * | 2007-02-14 | 2012-09-05 | 中兴通讯股份有限公司 | Data synchronization implementing method |
| CN101969689A (en) * | 2009-07-27 | 2011-02-09 | 中兴通讯股份有限公司 | Method for realizing time synchronization and method for obtaining dispatching information |
| WO2014059764A1 (en) * | 2012-10-15 | 2014-04-24 | 华为技术有限公司 | Data sending method, receiving method and device |
| US9655111B2 (en) | 2012-10-15 | 2017-05-16 | Huawei Technologies Co., Ltd. | Method for transmitting data, method for receiving data, and device |
| CN109428614A (en) * | 2017-08-30 | 2019-03-05 | 华为技术有限公司 | A kind of dynamic time method of adjustment, device and system |
| US11025362B2 (en) | 2017-08-30 | 2021-06-01 | Huawei Technologies Co., Ltd. | Dynamic time adjustment method, apparatus, and system |
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|---|---|
| CN100426701C (en) | 2008-10-15 |
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