CN101730158A - Base station switching method and base station - Google Patents
Base station switching method and base station Download PDFInfo
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Abstract
The invention discloses a base station switching method and a base station. The method comprises: a target base station receives a switching notice message sent from a source base station on which one or a plurality of terminals are positioned, and one or a plurality of terminals needs/need to be switched to the target base station; radio resource is reserved for one or a plurality of terminals, and a special ranging code is distributed for one or a plurality of terminals; for each terminal of one or a plurality of terminals, the target base station forwards one or a plurality of ranging codes distributed for each terminal to a corresponding terminal via the source base station; for the terminal which is switched to the target base station, the target base station distributes reserved radio resource. By the above processing, the invention can reduce collision, save radio resources, and shorten switching interrupt time.
Description
Technical field
The present invention relates to the communications field, and especially, relate to a kind of base station switch method and base station.
Background technology
At present, for third generation mobile partner plan (the 3rd Generationpartnership project that contends with, abbreviate 3GPP as) senior Long Term Evolution (the Long-Term Evolution-Advanced that proposes of tissue, abbreviate LTE-Advanced as) technology, strive for becoming (the International Mobile Telecommunications of International Telecommunications Union, abbreviation ITU) the 4th generation (the 4rd Generation that formulates, abbreviate 4G as) standard, be senior international mobile communication (International Mobile Telecommunications-Advanced, abbreviate IMT-Advanced as), Institute of Electrical and Electronics Engineers (Institute forElectrical and Electronic Engineers abbreviates IEEE as) 802.16 committees have proposed the enhancing version IEEE802.16m at the IEEE802.16e technology.
Requirement documents (System RequirementsDocument in the IEEE802.16m system, be called for short SRD) in, require IEEE 802.16m system to support simultaneously to switch (inter-frequencyhandover) with switching (intra-frequency handover) and alien frequencies frequently, wherein, be no more than 30ms with the HO-break duration that switches frequently, the HO-break duration that alien frequencies switches is no more than 100ms.Obviously, the switching flow that defines in IEEE 802.16e system can not satisfy the requirement of the HO-break duration of strictness like this.
In the nearest meeting several times of IEEE 802.16 committees, the terminal that has proposed will to switch to each target BS is all distributed the ranging code of a special use; Though said method can reduce the range finding collision, save the break period of finding range, but, if exist a large amount of terminal (terminal quantity surpasses the service capacity of target BS) need switch to the scene of same target BS sometime, at this moment each terminal that will switch to target BS is distributed a up (Up-Link respectively, abbreviation UL) cost of Radio Resource will be very big, serious waste ascending wireless resource, simultaneously, if target BS distributes the terminal that too many UL resource is given needs switching, also can influence the initial ranging of the terminal in the target BS net.At present, each terminal in the great amount of terminals is distributed ascending wireless resource serious waste that ascending wireless resource causes and the problem that hinders the initial ranging of the terminal in the target BS net respectively, do not propose effective solution at present as yet at this.
Summary of the invention
Consider each terminal that will switch to target BS is all distributed the problem of ascending wireless resource waste that the ranging code of a special use causes and the initial ranging that hinders the terminal in the target BS net and proposed the present invention, for this reason, main purpose of the present invention is to provide a kind of base station switch method and base station, to solve the problems referred to above that exist in the correlation technique.
According to an aspect of the present invention, provide a kind of base station switch method.
Base station switch method according to the present invention comprises: target BS receives from needs and switches to the handoff notification message that the source base station at one or more terminals place of target BS sends, for one or more terminals are reserved Radio Resource, and be one or more terminal distribution special ranging sign indicating numbers; For each terminal in one or more terminals, target BS will be forwarded to relevant terminal via source base station for one or more ranging codes of its distribution; For the terminal that switches to target BS, target BS distributes reserved radio resource for it.
In addition, before target BS was one or more terminal distribution special ranging sign indicating numbers, said method also comprised: the target BS issue is used to distribute to one group of ranging code of one or more terminals.
Wherein, target BS is that one or more terminal distribution special ranging sign indicating numbers comprise: target BS is the one or more ranging codes in one group of ranging code of one or more terminal distribution according to the selection at random of one or more terminals; Perhaps, target BS is arranged one group of ranging code according to predefined procedure, and the one or more ranging codes in one group of ranging code after will sorting successively according to the time sequencing of switching are assigned to one or more terminals, and after one group of ranging code assigns, one group of ranging code after the ordering is redistributed the terminal that ranging code is arranged to unallocated successively.
In addition, target BS be switch to the terminal distribution reserved radio resource of target BS before, further comprise: target BS obtains the ranging code that the terminal that switches to target BS sends; Judge that whether ranging code is the ranging code that target BS distributes, and be judged as under the situation that is, allows for this terminal distribution reserved radio resource.
Wherein, target BS is that the terminal distribution reserved radio resource that switches to target BS is to distribute to the terminal that all switch to target BS, and all switch to the terminal of target BS can share reserved radio resource.
Wherein, target BS is that the terminal distribution reserved radio resource that switches to target BS can not be distributed to the terminal use that has been positioned at the non-switching in the Target cell.
In addition, after target BS had distributed reserved radio resource, said method further comprised: target BS discharges reserved radio resource after confirming do not have other terminal to switch to target BS.
According to an aspect of the present invention, provide a kind of base station.
Base station according to the present invention comprises: receiver module is used to receive from needs and switches to the handoff notification message that the source base station at one or more terminals place of base station sends; Reserve module, be used for after receiver module receives handoff notification message, for one or more terminals are reserved Radio Resource; First distribution module be used to one or more terminal distribution special ranging sign indicating numbers, and one or more ranging codes that will distribute is forwarded to relevant terminal via source base station; Second distribution module is used for for the terminal that switches to target BS, for it distributes reserved radio resource.
In addition, reserving module is further used for: issue is used to distribute to one group of ranging code of one or more terminals.
In addition, the base station further comprises: release module is used for discharging reserved radio resource after confirming do not have other terminal to switch to target BS.
In addition, first distribution module further comprises: the Random assignment submodule, be used for selection at random according to one or more terminals, and be the one or more ranging codes in one group of ranging code of one or more terminal distribution; And/or order assignment submodule, be used for one group of ranging code is arranged according to predefined procedure, and the one or more ranging codes in one group of ranging code after will sorting successively according to the time sequencing of switching are assigned to one or more terminals, and after one group of ranging code assigns, one group of ranging code after the ordering is redistributed the terminal that ranging code is arranged to unallocated successively.
In addition, second distribution module further comprises: judge submodule, be used to obtain the ranging code of the terminal transmission that switches to target BS, and judge whether ranging code is the ranging code that target BS distributes, and be judged as under the situation that is, allow for this terminal distribution reserved radio resource.
By means of technical scheme of the present invention, by issue one group of ranging code at target BS, and terminals that all plans are switched keep a part of ascending wireless resource, solved in the correlation technique each terminal that will switch to target BS and all distributed the ranging code of a special use to cause ascending wireless resource, can reduce collision, save Radio Resource, the shortening HO-break duration by a large amount of wastes and the problems that are not easy to find range.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the flow chart according to the base station switch method of the embodiment of the invention;
Fig. 2 is the signaling process figure according to the detailed process of the base station switch method of the embodiment of the invention;
Fig. 3 is the block diagram one according to the base station of the embodiment of the invention;
Fig. 4 is the block diagram two according to the base station of the embodiment of the invention.
Embodiment
Functional overview
In correlation technique, because each terminal that will switch to target BS is all distributed the ranging code meeting serious waste ascending wireless resource of a special use, simultaneously, target BS distributes the terminal that too many UL resource is given needs switching, also can influence the initial ranging of the terminal in the target BS net.Therefore, the invention provides a kind of handover scheme of optimization: target BS will switch to one group of ranging code of terminal distribution of this base station for each, switch to the terminal distribution part Radio Resource of this base station simultaneously for these plans, the Radio Resource of the terminal in this part Radio Resource and the target BS net separates.
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
Method embodiment
According to embodiments of the invention, a kind of base station switch method is provided, Fig. 1 is the flow chart according to the base station switch method of the embodiment of the invention, as shown in Figure 1, comprises following processing (step S102-step S106):
Step S102, target BS receives from needs and switches to the handoff notification message that the source BS at one or more terminals place of target BS sends, be that one or more terminals reserve Radio Resources, and distribute the special ranging sign indicating number respectively for each terminal in one or more terminals.
Among the step S102, before target BS was distributed the special ranging sign indicating number respectively for each terminal, target BS also needed to issue one group of ranging code that is used to distribute to all terminals that need switch to target BS.
In step S102, for each terminal in all terminals is distributed comprising of special ranging sign indicating number of following dual mode respectively:
Mode one, target BS switch to as required target BS all terminals be chosen as one or more ranging codes in one group of ranging code of all terminal distribution that need switch to target BS at random.
Mode two, target BS are arranged one group of ranging code according to predefined procedure, and the one or more ranging codes in one group of ranging code after will sorting successively according to the time sequencing of switching are assigned to all terminals that need switch to target BS, and after one group of ranging code assigns, one group of ranging code is continued to distribute to the unallocated terminal that ranging code is arranged according to predefined procedure.
Step S104, for each terminal in one or more terminals, target BS will be forwarded to relevant terminal via source BS for one or more ranging codes of its distribution.
Step S106, for the terminal that switches to target BS, target BS is distributed reserved radio resource for it.
In step S106, target BS be switch to the terminal distribution reserved radio resource of target BS before, also comprise following processing:
1, the terminal that switches to target BS sends ranging code to target BS.
2, target BS judges that whether ranging code is the ranging code that target BS is distributed, and be judged as under the situation that is, allows for this terminal distribution reserved radio resource.
After the processing of having carried out step S106, target BS discharges reserved radio resource after confirming do not have other terminal to switch to target BS.In the application of reality, target BS just can think do not have other terminal need switch to target BS under the situation of confirming not have source BS to send handoff notification message.
Below in conjunction with accompanying drawing, technical scheme of the present invention is described in detail.Fig. 2 is the signaling process figure according to the detailed process of the base station switch method of the embodiment of the invention, as shown in Figure 2, comprises following processing:
Step 1, serving BS broadcasts (above-mentioned source BS) are made and are switched decision, and it specifically is treated to:
Serving BS broadcasts sends the MOB_NBR-ADV broadcast and provides the channel information of its adjacent BS to terminal (this message sends to terminal in the sub-district by serving BS broadcasts, in this message, has comprised the channel information of the adjacent BS of all these serving BS broadcasts; Wherein, the channel information of adjacent BS is by its oneself downlink channel descriptor (Downlink ChannelDescriptor, abbreviate DCD as) or uplink channel descriptor (Uplink ChannelDescriptor, abbreviating UCD as) message provides, in addition, serving BS broadcasts can obtain this message by the backhaul backbone network, this message promoted terminal and adjacent BS synchronously).
Can be in order to seek and to monitor for the target BS of switching, terminal sends the scanning of MOB_SCN-REQ message request to serving BS broadcasts, and (this message is represented the adjacent BS that terminal is used to scan to one group of serving BS broadcasts request, terminal is distributed sweep interval to the serving BS broadcasts request simultaneously, carries the start frame that scanning estimated time and terminal are recommended in this message).
Serving BS broadcasts sends MOB_SCN-RSP message and agrees that to terminal (above-mentioned message can license to the same long sweep interval of the time with request of terminal in scanning, also can be duration scanning 0 refuse the request, in addition, serving BS broadcasts can initiatively send MOB_SCN-RSP message, to initiatively send, invisible scanning interval and duration scanning are not 0 MOB_SCN-RSP message, expression is used to impel the terminal reporting scanning result).
In case terminal detects the better adjacent sub-district of radio condition, then send MOB_SCN-REP message to serving BS broadcasts, carry the target BS that terminal is recommended in this message.
Serving BS broadcasts is made switching according to MOB_SCN-REP message and is determined, and transmission MOB_NOT-REQ message (message newly-increased according to embodiments of the invention) has the terminal plan to switch to this BS to the target BS notice of recommending.
Step 2, in handoff preparation phase, target BS receives after the handoff notification message of serving BS broadcasts transmission that target BS is reserved a part of Radio Resource to the terminal of planning to switch to this BS, and the one or more ranging codes of terminal distribution (corresponding to the step S102 among Fig. 1) for planning to switch.
Need to prove, it not is the terminal that only a plan is switched to this BS as the UL Radio Resource of initial ranging and the ranging code of distribution that target BS is kept for the terminal of planning to switch, but the terminal that a plurality of plans switch to this BS is used jointly, but, except the terminal of not preparing to switch to this BS (that is existing terminal in this BS coverage cell).
And, the UL Radio Resource of keeping for plan to switch to the terminal of this BS is what to separate with the Radio Resource of keeping for existing terminal in the target BS coverage cell, therefore collision only can occur between the terminal of planning to switch, compare with normal changeover program, reduced collision opportunity and saved break period.
In addition, one group of ranging code of target BS issue can all send to the terminal that each plan switches to this BS, ranging code can be selected at random by terminal oneself, also ranging code can be arranged by ascending order according to size, in chronological sequence send to the terminal that each plan switches to this BS successively, have only one group of ranging code of working as to exhaust, and also have when planning to switch to the terminal of this BS, just can reuse ranging code in order, reduce collision so to greatest extent.
Step 3, target BS sends to serving BS broadcasts with the ranging code that distributes, and specifically is treated to:
Ranging code information is included in MOB_NOT-RSP (message newly-increased according to the embodiment of the invention) message, sends to serving BS broadcasts by target BS, and the switching notice of serving BS broadcasts is given a response.
Step 4, the ranging code information that serving BS broadcasts sends over target BS are included in and send to the terminal (step 3, step 4 are corresponding to the step S104 among Fig. 1) of planning to switch to target BS in the switching command.
The MOB_BSHO-REQ message that serving BS broadcasts will comprise ranging code information send to plan to switch to this BS terminal (when the serving BS broadcasts decision is switched, above-mentioned message is passed through basic connection identifier (CID (connection identifier by serving BS broadcasts, abbreviate CID as) send to terminal, can scan the adjacent BS that recommends in the message when terminal is received this message).
Step 5, when the terminal of switching inserted target BS, target BS was given this terminal distribution reserved radio resource, and, only when planning to switch to the terminal preparation access target BS of this BS, target BS is just given this terminal distribution UL Radio Resource (corresponding to the step S106 among Fig. 1).
Terminal sends the RNG-REQ message that comprises ranging code information to target BS and carry out distance measurement request (above-mentioned message can be carried and periodically be determined information such as network delay, power request or uplink burst description, and can send) when initial ranging and data grant interval; Because target BS has been issued the ranging code of the terminal of giving the plan switching, so be easy to detect and plan the ranging code whether terminal switched send for this BS, therefore, target BS can judge whether decision gives the terminal distribution reserved resource of switching by the ranging code that terminal is sent.
If the ranging code that terminal sends is the ranging code of target BS distribution in advance, then give this terminal distribution reserved radio resource, by sending RNG-RSP message (response message of RNG-REQ message) distance measurement request of terminal is replied simultaneously.If the ranging code that terminal sends is not the ranging code of target BS distribution in advance, then do not distribute reserved radio resource.
Step 6, target BS discharges its reserved radio resource after confirming do not have other-end to switch.Wherein, whether target BS can have other BS to send handoff request by checking, if do not have, can confirm not have other-end to need to switch.When target BS is confirmed not have to plan to switch to the terminal of this BS, can discharge Radio Resource, wherein, the Radio Resource of release is used for the transmission of all UL shared data.
Preferably, target BS can also be controlled release time by timer, for example, a timer T-r is set, is made as the starting point of timer with the time point of receiving handoff request at last, set a time restriction T-slot again, that is, count, behind a period of time T-slot from the time point of receiving handoff request at last, target BS does not receive that plan switches to the solicited message of the terminal of this BS, then discharges the Radio Resource that keeps.
Need to prove that the release of Radio Resource is dispatched by target BS, because have only media access control layer (Medium Access Control layer abbreviates MAC as) layer to know whether that terminal attempts to switch to current BS.
Step 7, terminal is carried out the network reentrant program, and restoring user data sends.
By above-mentioned processing, not only can effectively save ascending resource, and by reserving Radio Resource, can make collision only in reserved resource, take place, that is, only between the terminal of switching, may bump, and other terminal that can not have influence under the target BS (that is to say, can more collision not take place with other terminal that originally belongs to target BS), reach and not only reduce collision but also save Radio Resource and the purpose of HO-break duration.
Device embodiment
According to embodiments of the invention, a kind of base station is provided, Fig. 3 is the block diagram according to the base station of the embodiment of the invention, under the situation of base station as target BS, comprise: receiver module 302, reservation module 304, first distribution module 306, second distribution module 308, below to the processing as target BS is described in detail in the base station.
Under the situation of base station, comprising as target BS 30:
Below the general further is described the details of first distribution module 306.
The Random assignment submodule is used for switching to as required the one or more ranging codes that are chosen as one group of ranging code of all terminal distribution that need switch to target BS at random of all terminals of target BS.
The order assignment submodule, be used for one group of ranging code is arranged according to predefined procedure, and the one or more ranging codes in one group of ranging code after will sorting successively according to the time sequencing of switching are assigned to all terminals that need switch to target BS, and after one group of ranging code assigns, one group of ranging code is continued to distribute to the unallocated terminal that ranging code is arranged according to predefined procedure.
Second distribution module 308 is connected to and reserves module 304, is used for for the terminal that switches to target BS, for it distributes reserved radio resource.
Second distribution module 308 further comprises: judge submodule, be used to receive the ranging code of the terminal transmission that switches to target BS, judge that whether ranging code is the ranging code that target BS is distributed, and be judged as under the situation that is, allows for this terminal distribution reserved radio resource.
In addition, target BS 30 further comprises: release module is used for discharging reserved radio resource after confirming do not have other terminal to switch to target BS.
As shown in Figure 4, under the situation of base station, comprising as source BS 40:
Sending module 402 is used for sending handoff notification message to target BS; Forwarding module 404 is used for one or more ranging codes that target BS sends are forwarded to relevant terminal by switching command.
In sum, by means of technical scheme of the present invention, by issue one group of ranging code at target BS, and terminals that all plans are switched keep a part of ascending wireless resource, solved in the correlation technique each terminal that will switch to target BS and all distributed the ranging code of a special use to cause ascending wireless resource, can reduce collision, save Radio Resource, the shortening HO-break duration by a large amount of wastes and the problems that are not easy to find range.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a base station switch method is characterized in that, described method comprises:
Target BS receives from needs and switches to the handoff notification message that the source base station at one or more terminals place of described target BS sends, and is that described one or more terminals are reserved Radio Resources, and is described one or more terminal distribution special ranging sign indicating number;
For each terminal in described one or more terminals, described target BS will be forwarded to relevant terminal via source base station for described one or more ranging codes of its distribution;
For the terminal that switches to described target BS, described target BS distributes the described Radio Resource of reserving for it.
2. method according to claim 1 is characterized in that, before described target BS was described one or more terminal distribution special ranging sign indicating number, described method also comprised:
Described target BS issue is used to distribute to one group of ranging code of described one or more terminals.
3. method according to claim 2 is characterized in that, described target BS is that described one or more terminal distribution special ranging sign indicating number comprises:
Described target BS is the one or more ranging codes in the described one group of ranging code of described one or more terminal distribution according to the selection at random of described one or more terminals; Perhaps
Described target BS is arranged described one group of ranging code according to predetermined pagination, and the one or more ranging codes in one group of ranging code after will sorting successively according to the time pagination that switches are assigned to described one or more terminal, and after described one group of ranging code assigns, the described one group of ranging code after the ordering is redistributed the terminal that ranging code is arranged to unallocated successively.
4. method according to claim 1 is characterized in that, described target BS be switch to the described Radio Resource that the terminal distribution of described target BS reserves before, further comprise:
Described target BS obtains the ranging code of the terminal transmission that switches to described target BS;
Judge that whether described ranging code is the ranging code that described target BS distributes, and be judged as under the situation that is, allows for the described Radio Resource that this terminal distribution is reserved.
5. method according to claim 1, it is characterized in that, described target BS is that to switch to the described Radio Resource that the terminal distribution of described target BS reserves be to distribute to the terminal that all switch to described target BS, and described all terminals that switch to described target BS can be shared reserved radio resource.
6. method according to claim 5, its feature are that also described target BS is that the described Radio Resource that the described terminal distribution that switches to described target BS is reserved can not be distributed to the terminal use that has been positioned at the non-switching in the Target cell.
7. method according to claim 1 is characterized in that, distributed the described Radio Resource of reserving at described target BS after, described method further comprises:
Described target BS discharges the described Radio Resource of reserving after confirming do not have other terminal need switch to described target BS.
8. a base station is characterized in that, comprising:
Receiver module is used to receive from needs and switches to the handoff notification message that the source base station at one or more terminals place of described base station sends;
Reserve module, be used for after described receiver module receives described handoff notification message, for described one or more terminals are reserved Radio Resource;
First distribution module be used to described one or more terminal distribution special ranging sign indicating number, and described one or more ranging codes that will distribute is forwarded to relevant terminal via source base station;
Second distribution module is used for for the terminal that switches to described target BS, for it distributes the described Radio Resource of reserving.
9. base station according to claim 8 is characterized in that, described reservation module is further used for: issue is used to distribute to one group of ranging code of described one or more terminals.
10. base station according to claim 8 is characterized in that, described base station further comprises:
Release module is used for discharging the described Radio Resource of reserving after confirming do not have other terminal need switch to described target BS.
11. base station according to claim 8 is characterized in that, described first distribution module further comprises:
The Random assignment submodule is used for the selection at random according to described one or more terminals, is the one or more ranging codes in the described one group of ranging code of described one or more terminal distribution; And/or
The order assignment submodule, be used for described one group of ranging code is arranged according to predefined procedure, and the one or more ranging codes in one group of ranging code after will sorting successively according to the time sequencing of switching are assigned to described one or more terminal, and after described one group of ranging code assigns, the described one group of ranging code after the ordering is redistributed the terminal that ranging code is arranged to unallocated successively.
12. base station according to claim 8 is characterized in that, described second distribution module further comprises:
Judge submodule, be used to obtain the ranging code of the terminal transmission that switches to described target BS, and judge that whether described ranging code is the ranging code that described target BS distributes, and be judged as under the situation that is, allows for the described Radio Resource that this terminal distribution is reserved.
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|---|---|---|---|
| CN 200810173412 CN101730158B (en) | 2008-10-22 | 2008-10-22 | Base station switching method and base station |
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| CN 200810173412 CN101730158B (en) | 2008-10-22 | 2008-10-22 | Base station switching method and base station |
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| CN101730158A true CN101730158A (en) | 2010-06-09 |
| CN101730158B CN101730158B (en) | 2013-06-05 |
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| CN 200810173412 Expired - Fee Related CN101730158B (en) | 2008-10-22 | 2008-10-22 | Base station switching method and base station |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200646A (en) * | 2012-01-09 | 2013-07-10 | 华为技术有限公司 | Terminal and terminal initiatively scanning method |
| CN104919857A (en) * | 2012-11-20 | 2015-09-16 | 瑞典爱立信有限公司 | Method and node for reducing handover signaling |
| CN105376837A (en) * | 2012-01-09 | 2016-03-02 | 华为技术有限公司 | Terminal and method for actively scanning the terminal |
| CN111526554A (en) * | 2012-11-27 | 2020-08-11 | 西格拉姆申德勒有限公司 | Handover proactive association provisioning support method and system |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100893860B1 (en) * | 2004-06-10 | 2009-04-20 | 엘지전자 주식회사 | Method for Handover and Resuem Communication in Failing Handover applying to Broadband Wireless Access System |
| CN1870818A (en) * | 2005-05-24 | 2006-11-29 | 北京三星通信技术研究有限公司 | Method for quickly switchover using appointed range finding code |
-
2008
- 2008-10-22 CN CN 200810173412 patent/CN101730158B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103200646A (en) * | 2012-01-09 | 2013-07-10 | 华为技术有限公司 | Terminal and terminal initiatively scanning method |
| CN105376837A (en) * | 2012-01-09 | 2016-03-02 | 华为技术有限公司 | Terminal and method for actively scanning the terminal |
| CN103200646B (en) * | 2012-01-09 | 2016-03-30 | 华为技术有限公司 | A kind of method of terminal and terminal active scan |
| US9603082B2 (en) | 2012-01-09 | 2017-03-21 | Huawei Technologies Co., Ltd. | Feedback method for active scanning of user terminal, and access point |
| CN105376837B (en) * | 2012-01-09 | 2019-02-19 | 华为技术有限公司 | A kind of method of terminal and terminal active scan |
| CN104919857A (en) * | 2012-11-20 | 2015-09-16 | 瑞典爱立信有限公司 | Method and node for reducing handover signaling |
| US10285098B2 (en) | 2012-11-20 | 2019-05-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and node for reducing handover signaling associated with group handover |
| CN111526554A (en) * | 2012-11-27 | 2020-08-11 | 西格拉姆申德勒有限公司 | Handover proactive association provisioning support method and system |
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| Publication number | Publication date |
|---|---|
| CN101730158B (en) | 2013-06-05 |
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