CN101345986A - Processing method and base station for switching failure in communication network - Google Patents
Processing method and base station for switching failure in communication network Download PDFInfo
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- CN101345986A CN101345986A CNA200710118734XA CN200710118734A CN101345986A CN 101345986 A CN101345986 A CN 101345986A CN A200710118734X A CNA200710118734X A CN A200710118734XA CN 200710118734 A CN200710118734 A CN 200710118734A CN 101345986 A CN101345986 A CN 101345986A
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Abstract
The invention provides a method for dealing with switch failure and the base station thereof. The method mainly comprises: first, in the curse of mobile station switches to target base station, service base station acquires the context information of the mobile station for the alternative target base station of the mobile station; then, when the failure of the curse of switching to the target base station, the alternative target base station can execute accessing procession to the accessed mobile station according to the context information and implement the operation that the mobile station accesses to the alternative base station. It is observed that presetting a alternative base station for the mobile station in the curse of switching enable the mobile station to access to the alternative target base station firstly when the switch fails. The method in the invention enables the mobile station to resume communication rapidly in case of switch failure, and improves continuity and capacity to resume current service of the mobile station.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to the treatment technology behind the handoff failure in a kind of communication network.
Background technology
In wireless communication procedure, because the mobility of travelling carriage makes it to switch between different cell base stations, to obtain preferable communication performance.
In the travelling carriage handoff procedure,, cause handoff failure because the odjective cause of communication environment etc. may cause travelling carriage can't switch to target BS smoothly.At the situation of handoff failure, the main at present processing mode that adopts comprises following two kinds:
A kind of processing mode is: the former serving BS of travelling carriage need keep the operational factor of travelling carriage and relevant contextual information, and corresponding resource is set keeps timer, so that behind handoff failure, travelling carriage is if return original serving BS before this timer expiry, then former serving BS can utilize the fast quick-recovery of resources reserved and travelling carriage to communicate by letter.
Another kind of processing mode is: after the failure that switches, carried out the process of sub-district gravity treatment by travelling carriage; After the gravity treatment of sub-district, the travelling carriage base station first-selected with it inserted again, promptly re-executes corresponding handover operation process, to switch to new cell base station.
In realizing process of the present invention, the inventor finds that there are the following problems at least in the prior art:
For above-mentioned first kind of processing mode, before switching, be lower than certain thresholding with the communication quality of former serving BS, so just initiate corresponding switching just because of travelling carriage.If behind handoff failure, return former serving BS again, then may cause switching once more generation owing to communication quality continues to be lower than handoff threshold.For example, travelling carriage moves to the edge of former Serving cell and continues to move with the direction away from this Serving cell, if return former Serving cell after the failure that switches, then communication quality will be poorer.Therefore, travelling carriage returns former Serving cell and imperfect selection behind handoff failure.
For above-mentioned second kind of processing mode, because cell reselection process need spend the regular hour, and after the base station of gravity treatment determines that travelling carriage need insert, also need to take certain hour by backbone network to the former serving BS of travelling carriage or the related context information of other these travelling carriages of network entity request, therefore, this processing mode will make the switching delay behind the handoff failure increase greatly.
Summary of the invention
Embodiments of the invention provide the processing method and the base station of handoff failure in a kind of communication network, guarantee still can select desirable access base station behind the travelling carriage handoff failure on the one hand, can also effectively overcome the switching delay that causes because of handoff failure on the other hand increases problem greatly.
The embodiment of the invention provides a kind of processing method of handoff failure, comprising:
In the process of switching mobile station to target base station, be the contextual information that the alternative target base station of mobile station in selecting obtains travelling carriage by serving BS;
After determining to switch to the procedure failure of target BS, described alternative target base station is inserted processing according to the contextual information of described travelling carriage to this travelling carriage execution that request inserts, and realizes that travelling carriage switches to the operation of alternative target base station.
The embodiment of the invention provides a kind of base station, comprising:
The contextual information acquiring unit, being arranged at by serving BS is in the alternative target base station of mobile station in selecting, is used for the process at switching mobile station to target base station, obtains the contextual information of travelling carriage;
Switch and insert processing unit, be used for after determining to switch to the procedure failure of target BS, according to the contextual information of described travelling carriage the travelling carriage that is linked into the alternative target base station is carried out to insert and handle, realize that travelling carriage switches to the operation of alternative target base station.
The technical scheme that is provided by the embodiment of the invention described above as can be seen, in handoff procedure, because the alternative target base station that has been mobile station in selecting in advance, thereby make that travelling carriage can preferentially insert this alternative target base station behind handoff failure, reduce the delay in the handoff procedure, improve the reliability of switching, make under the situation of handoff failure, soon the communication of quick-recovery travelling carriage.
Description of drawings
The concrete handoff failure processing procedure schematic diagram one that Fig. 1 provides for the embodiment of the invention;
The concrete handoff failure processing procedure schematic diagram two that Fig. 2 provides for the embodiment of the invention;
The concrete handoff failure processing procedure schematic diagram three that Fig. 3 provides for the embodiment of the invention;
The concrete handoff failure processing procedure schematic diagram four that Fig. 4 provides for the embodiment of the invention;
Fig. 5 provides the specific implementation structural representation of base station for the embodiment of the invention.
Embodiment
In the embodiment of the invention, carry out in the handoff procedure at wireless communication system, the alternative target base station that has been mobile station in selecting in advance, thereby make that travelling carriage can preferentially insert this alternative target base station behind handoff failure, thereby the delay in the minimizing handoff procedure, make under the situation of handoff failure, soon the communication of quick-recovery travelling carriage; Further, carry out in the access processing procedure, can also initiatively obtain the contextual information of travelling carriage, thereby can further accelerate the processing procedure of handoff failure in the alternative target base station.
The embodiment of the invention specifically can but be not limited to be applied in the IEEE802.16 wireless communication system.
Particularly, the embodiment of the invention mainly comprises following processing procedure in the specific implementation process:
(1) in handoff preparation phase, serving BS is mobile station in selecting alternative target base station;
Specifically can be according to one or multinomial combination requiring at the current QoS (service quality) of scanning result (being measurement report), the ability of travelling carriage, the travelling carriage of adjacent base station, wireless resource information such as the load information of adjacent base station and adjacent base station are current in can the QoS class information of support, the alternative target base station of failing and need insert to select travelling carriage to switch, promptly travelling carriage preferentially inserts this alternative target base station behind handoff failure;
Promptly in handoff preparation phase except that being the mobile station in selecting target BS, need be mobile station in selecting alternative target base station also by serving BS, wherein, target BS can be selected by serving BS, also can select a target BS according to the candidate target base station that serving BS provides by travelling carriage;
(2) contextual information of travelling carriage etc. is sent to the alternative target base station;
In order to quicken travelling carriage inserts the alternative target base station behind handoff failure processing procedure, then need the contextual information of travelling carriage sent to the alternative target base station;
Specifically can adopt following any implementation that the contextual information of travelling carriage is sent to the alternative target base station, each implementation is as follows:
First kind of mode is: after handover-target base station detects the travelling carriage handoff failure, notify former serving BS that the contextual information of travelling carriage is sent to the alternative target base station by target BS;
The second way is: when travelling carriage detected handoff failure, notification service base station handoff failure then sent to the alternative target base station by serving BS with the context of travelling carriage then;
The third mode is: in handoff preparation phase, indicate the alternative target base station to target BS when former serving BS sends handoff request to target BS, carry the ID of alternative target base station simultaneously; Afterwards, after target BS detects the travelling carriage handoff failure, transmit the contextual information of travelling carriage by target BS and give the alternative target base station;
The 4th kind of mode is: serving BS is after definite alternative target base station, the any time that before travelling carriage begins to carry out switching, (comprises the moment that the travelling carriage execution is switched), all the contextual information of travelling carriage can be sent to the alternative target base station, simultaneously, notice alternative target base station sends the former of this contextual information because travelling carriage may ask to insert in the given time;
In this mode, particularly, the described scheduled time can be adopted timer control, and to after date, travelling carriage handover success is promptly thought in the alternative target base station at this timer, and can delete the contextual information of the travelling carriage of preservation; Wherein, the timing length of described timer can determine according to average switching time and/or maximum switching delay, for example, after increasing predetermined value on average switching time or the maximum switching delay basis as the timing length of described timer.
(3) when the travelling carriage handoff failure, then handle for this travelling carriage provides to insert according to the contextual information of the travelling carriage of receiving by the alternative target base station, realize handoff procedure.
In above-mentioned processing procedure and since chosen in advance the respective alternative target BS, make and behind the travelling carriage handoff failure, can insert again from this alternative target base station apace, thereby can effectively improve the mobile station service continuity.
For ease of understanding, be described in detail below in conjunction with several concrete application implementation scheme of accompanying drawing to the embodiment of the invention to the embodiment of the invention.
Application implementation scheme one
In this embodiment, specifically as shown in Figure 1, mainly can may further comprise the steps:
Step 1, serving BS are mobile station in selecting target BS and alternative target base station;
Specifically can switch decision, to be switched target BS and the alternative target base station of decision MS according to making at one in wireless resource information such as the current qos requirement of scanning result (being measurement report), MS ability, the MS of neighbor cell, the load information of adjacent base station and the current QoS class information that can support of adjacent base station or multinomial combination; In this step, wireless resource information such as the load information of described adjacent base station can be obtained from upper layer network equipment by serving BS periodicity or Event triggered ground;
Step 2, serving BS sends handoff request message to target BS, and this handoff request message is carried the contextual information of travelling carriage;
After step 3, target BS are received described handoff request message, send switching response message to serving BS;
Step 4, serving BS send switch indicating information to MS after receiving the switching response message of target BS, and notice MS carries out handover operation;
The concrete time that serving BS specifically can notify MS to switch in this switch indicating information, perhaps MS also can oneself determine to carry out the time of switching after receiving this switch indicating information, perhaps also can carry out immediately after MS receives switch indicating information and switch;
Step 5, MS carries out the access procedure with target BS, still, access failure;
After step 6, target BS detect the travelling carriage handoff failure, then notify former serving BS that the contextual information of travelling carriage is sent to the alternative target base station;
After step 7, former serving BS are received the notice of step 6 transmission, send the contextual information of travelling carriage to described alternative target base station;
Step 8, find range in travelling carriage and alternative target base station, and the fast network that the alternative target base station utilizes the travelling carriage contextual information to carry out travelling carriage re-accesses processing;
In order to make in this step, travelling carriage can obtain its alternative target base station that need insert, then after serving BS has been selected the alternative target base station, need be with information (as Base Station Identification) the notice travelling carriage of the alternative target base station selected, as can in step 4, the alternative target Base Station Identification being sent to travelling carriage, also can be after execution in step 6, serving BS sends to travelling carriage with the alternative target Base Station Identification;
This step 8 specifically can be after step 5 takes place execution whenever, and be not limited in execution after the step 7.
Application implementation scheme two
In this embodiment, as shown in Figure 2, the specific implementation process can comprise:
Step 1, serving BS are MS select target base station and alternative target base station;
Serving BS specifically can switch decision according to making at one in wireless resource information such as the current qos requirement of scanning result (being measurement report), MS ability, the MS of adjacent base station, the load information of adjacent base station and the current QoS class information that can support of adjacent base station or multinomial combination, with to be switched target BS and the alternative target base station of decision MS;
Step 2, serving BS sends handoff request message to target BS, and this handoff request message is carried the contextual information of travelling carriage;
Step 3, target BS receive after switching that serving BS sends asks for instructions, return switching response message to serving BS;
After step 4, serving BS receive the switching response message that target BS returns, send switch indicating information, carry out with notice MS and switch to MS;
In this step, serving BS specifically can be chosen in the concrete time that notice MS switches in this switch indicating information;
Step 5, MS carries out the access procedure with target BS, but access failure;
In this step, MS can carry out handover operation according to the concrete time of the switching of serving BS indication, perhaps, and the time that MS also can switching be carried out in own decision after receiving this switch indicating information, perhaps, MS also can carry out immediately after MS receives switch indicating information and switch;
Step 6 after travelling carriage detects handoff failure, then notifies former serving BS that the contextual information of travelling carriage is sent to the alternative target base station;
Step 7, serving BS sends to described alternative target base station according to the notice of travelling carriage with the travelling carriage contextual information;
Step 8, find range in travelling carriage and alternative target base station, and the fast network that the alternative target base station utilizes the travelling carriage contextual information to carry out travelling carriage reenters;
In order to make in this step, travelling carriage can obtain its alternative target base station that need insert, then after serving BS has been selected the alternative target base station, need be with information (as Base Station Identification) the notice travelling carriage of the alternative target base station selected, as can in step 4, the alternative target Base Station Identification being sent to travelling carriage, also can be after execution in step 6, serving BS sends to travelling carriage with the alternative target Base Station Identification;
Equally, this step 8 can be carried out in any moment after step 5 takes place, and carries out after not only being limited in step 7.
Application implementation scheme three
In this embodiment, as shown in Figure 3, the specific implementation process can comprise:
Step 1, serving BS are mobile station in selecting target BS and alternative target base station;
Serving BS specifically can switch decision according to making at one in wireless resource information such as the current qos requirement of scanning result (being measurement report), MS ability, the MS of adjacent base station, the load information of adjacent base station and the current QoS class information that can support of adjacent base station or multinomial combination, with to be switched target BS and the alternative target base station of decision MS;
Step 2, serving BS sends handoff request message to target BS, and this handoff request message is carried the contextual information of travelling carriage and the ID of alternative target base station;
Step 3, target BS are then returned switching response message to serving BS after receiving described handoff request message;
After step 4, serving BS receive the switching response message that target BS returns, then send and switch indication and disappear, carry out with notice MS and switch to MS;
Alternatively, the concrete time that serving BS can also notify MS to switch in this switch indicating information is so that MS carries out handover operation according to this time;
Step 5, MS carries out the access procedure with target BS, but access failure;
In this step, MS can carry out handover operation according to the concrete time of the switching of serving BS indication, perhaps, and the time that MS also can switching be carried out in own decision after receiving this switch indicating information, perhaps, MS also can carry out immediately after MS receives switch indicating information and switch;
Step 6, after target BS detected handoff failure, then the sign of the alternative target base station of receiving before the basis was transmitted to the alternative target base station with the contextual information of travelling carriage;
Step 7, find range in travelling carriage and alternative target base station, and the fast network that the alternative target base station utilizes the contextual information of travelling carriage to carry out travelling carriage reenters operation, to realize handover operation;
In order to make in this step, travelling carriage can obtain its alternative target base station that need insert, then after serving BS has been selected the alternative target base station, need be with information (as Base Station Identification) the notice travelling carriage of the alternative target base station selected, for example, can in step 4, the alternative target Base Station Identification be sent to travelling carriage;
This step specifically can be carried out in any moment after step 5 takes place, and carries out and be not limited in after described step 6.
Application implementation scheme four
In this embodiment, as shown in Figure 4, the specific implementation process can comprise:
Step 1, serving BS are mobile station in selecting target BS and alternative target base;
Particularly, serving BS can switch decision according to making at one in wireless resource information such as the current qos requirement of scanning result (being measurement report), MS ability, the MS of adjacent base station, the load information of adjacent base station and the current QoS class information that can support of adjacent base station or multinomial combination, with to be switched target BS and the alternative target base station of decision MS;
Step 2, serving BS sends handoff request message to target BS, can carry the contextual information of travelling carriage and the ID of alternative target base station in this handoff request message;
Step 3, serving BS send to the alternative target base station with the contextual information of travelling carriage after definite alternative target base station;
Specifically any time that can (comprise the moment that the travelling carriage execution is switched) before travelling carriage begins to carry out switching sends to the alternative target base station with the related context information of travelling carriage, notifies the alternative target base station to send the former of this contextual information simultaneously because travelling carriage may ask to insert in the given time;
After the contextual information of described travelling carriage is received in the alternative target base station, the reservation timer at the contextual information of this travelling carriage is set; The timing length of this timer can be according to average switching time and/or maximum switching delay setting; And to after date, travelling carriage handover success is promptly thought in the alternative target base station at this timer, and no longer continues to keep the contextual information of this travelling carriage;
After step 4, target BS are received the handoff request message that serving BS sends, send switching response message to described serving BS;
After step 5, serving BS receive the switching response message that target BS returns, then send switch indicating information to MS, MS switches with notice;
Step 6, MS carries out the access procedure with target BS, but access failure;
In this step, MS can carry out handover operation according to the concrete time of the switching of serving BS indication, perhaps, and the time that MS also can switching be carried out in own decision after receiving this switch indicating information, perhaps, MS also can carry out immediately after MS receives switch indicating information and switch;
Step 7, find range in travelling carriage and alternative target base station, and the fast network that the alternative target base station utilizes the travelling carriage contextual information to carry out travelling carriage re-accesses operation, to realize handoff procedure.
Need to prove that above-mentioned steps 3 can occur in any moment between described step 2 and the step 5, and is not limited to after step 2.
The embodiment of the invention also provides a kind of base station, and this base station can be used as serving BS, also can be used as target BS, can also be as the alternative target base station, and its specific implementation structure mainly comprises following processing unit as shown in Figure 5:
(1) contextual information acquiring unit, be arranged in the alternative target base station, this alternative target base station is that mobile station in selecting is determined by serving BS, this unit specifically can be used for the process at switching mobile station to target base station, obtain the contextual information of travelling carriage, so that travelling carriage is linked in this alternative target base station fast;
(2) switch the access processing unit, be used for after determining to switch to the procedure failure of target BS, according to the contextual information of described travelling carriage the travelling carriage that is linked into the alternative target base station is carried out access and handle, realize that travelling carriage switches to the operation of alternative target base station;
As can be seen,, also need not to carry out the operation of the above information of obtaining travelling carriage, so can effectively improve professional continuity owing to behind handoff failure, need not to carry out again the selection of base station, and switch in the process of alternative target base station.
Alternatively, this base station can also comprise the base station selected unit of alternative target, be arranged in the base station as serving BS, be used for according to selecting an alternative target base station at one of the QoS class information of the wireless resource information of the current qos requirement of scanning result, capacity of mobile terminal, the portable terminal of adjacent base station, adjacent base station and the current support of adjacent base station or the multinomial portable terminal that is combined as.
Alternatively, for making the contextual information that can obtain travelling carriage in the alternative target base station, then can also comprise any in following Unit two in the base station:
The first contextual information transmitting element is arranged in the serving BS, is used for after the notice that receives the handoff failure that target BS or travelling carriage send, and the contextual information of described travelling carriage is sent to contextual information acquiring unit in the alternative target base station; Perhaps, after select determining the alternative target base station, the contextual information of described travelling carriage is sent to contextual information acquiring unit in the alternative target base station;
The second contextual information transmitting element, be arranged in the target BS, be used for after determining handoff failure, (comprising the handoff failure that causes because of reasons such as communication reason or the accesses of target BS refusal), the contextual information of described travelling carriage is sent to described contextual information acquiring unit in the alternative target base station.
Alternatively, in the alternative target base station, excessively preserve the contextual information of the travelling carriage of successful switch, then in the base station, can also comprise timer, be used for after receiving the contextual information of travelling carriage, starting this timer, behind timer expiry, the contextual information of this travelling carriage of control deletion;
Alternatively, for determining the timing length of described timer, described base station can also comprise that timer is provided with the unit, be used for the timing length that average switching time and/or maximum switching delay parameter according to wireless communication system are provided with described timer, for example, can be after increasing by a predetermined value on average switching time or the maximum switching delay basis as the timing length of timer.
In sum, in the embodiment of the invention, the travelling carriage behind the handoff failure does not need to carry out the sub-district reselection operation, makes that the processing procedure of recovering communication service is comparatively quick.And, because the alternative target base station selected in the select target base station by serving BS, thereby, neither can bring complexity to system, can improve the reliability of travelling carriage recovery communication quality behind the handoff failure again.In addition, in the embodiment of the invention, can initiatively send the contextual information of travelling carriage, thereby make that the transmission of contextual information of travelling carriage is more timely, further guarantee the quick access of travelling carriage to the alternative target base station.In a word, the realization of the embodiment of the invention has effectively improved the continuity of mobile station service and the ability of fast quick-recovery current business.
The above; only for the preferable embodiment of the present invention, but protection scope of the present invention is not limited thereto, and anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (10)
1, the processing method of handoff failure in a kind of communication network is characterized in that, comprising:
In the process of switching mobile station to target base station, the alternative target base station obtains the contextual information of travelling carriage, and described alternative target base station is to be that mobile station in selecting is determined by serving BS;
After determining to switch to the procedure failure of target BS, described alternative target base station is inserted processing according to the contextual information of described travelling carriage to this travelling carriage execution that request inserts, and travelling carriage is switched to the alternative target base station.
2, method according to claim 1 is characterized in that, this method comprises that also serving BS is the step of mobile station in selecting alternative target base station, and this step comprises:
Serving BS is according to selecting an alternative target base station at one in the QoS class information of the wireless resource information of the current service quality QoS requirements of scanning result, capacity of mobile terminal, the portable terminal of adjacent base station, adjacent base station and the current support of adjacent base station or the multinomial portable terminal that is combined as.
3, method according to claim 1 and 2 is characterized in that, the step that described alternative target base station obtains the contextual information of travelling carriage comprises:
After the notice of the handoff failure that serving BS receiving target base station or travelling carriage are sent, the contextual information of described travelling carriage is sent to the alternative target base station, this alternative target base station receives the contextual information that obtains travelling carriage;
Perhaps,
After determining handoff failure, target BS sends to the alternative target base station with the contextual information of described travelling carriage, and this alternative target base station receives the contextual information that obtains travelling carriage;
Perhaps,
After serving BS select to be determined the alternative target base station, the contextual information of described travelling carriage is sent to the alternative target base station, this alternative target base station receives the contextual information that obtains travelling carriage.
4, method according to claim 1 and 2 is characterized in that, after described alternative target base station obtained the contextual information of described travelling carriage, this method also comprised:
For the contextual information of this travelling carriage of preserving is provided with timer, behind timer expiry, delete the contextual information of this travelling carriage.
5, method according to claim 4 is characterized in that, the timing length of described timer is according to determining average switching time in the wireless communication system and/or maximum switching delay parameter.
6, a kind of base station is characterized in that, comprising:
The contextual information acquiring unit is arranged in the alternative target base station, is used for the process at switching mobile station to target base station, obtains the contextual information of travelling carriage, and described alternative target base station is to be that mobile station in selecting is determined by serving BS;
Switch and insert processing unit, be arranged in the alternative target base station, be used for after determining to switch to the procedure failure of target BS, according to the contextual information of described travelling carriage the travelling carriage that is linked into the alternative target base station carried out to insert and handle, realize that travelling carriage switches to the operation of alternative target base station.
7, base station according to claim 6, it is characterized in that, this base station also comprises the base station selected unit of alternative target, be arranged in the base station as serving BS, be used for according to selecting an alternative target base station at one of the QoS class information of the wireless resource information of the current qos requirement of scanning result, capacity of mobile terminal, the portable terminal of adjacent base station, adjacent base station and the current support of adjacent base station or the multinomial portable terminal that is combined as.
8, according to claim 6 or 7 described base stations, it is characterized in that this base station also comprises:
The first contextual information transmitting element is arranged in the serving BS, is used for after the notice that receives the handoff failure that target BS or travelling carriage send, and the contextual information of described travelling carriage is sent to contextual information acquiring unit in the alternative target base station; Perhaps, after select determining the alternative target base station, the contextual information of described travelling carriage is sent to contextual information acquiring unit in the alternative target base station;
Perhaps,
The second contextual information transmitting element is arranged in the target BS, is used for after determining handoff failure, and the contextual information of described travelling carriage is sent to described contextual information acquiring unit in the alternative target base station.
9, according to claim 6 or 7 described base stations, it is characterized in that this base station also comprises timer, be used for after receiving the contextual information of travelling carriage, starting this timer, behind timer expiry, the contextual information of this travelling carriage of control deletion.
10, base station according to claim 9 is characterized in that, this base station comprises that also timer is provided with the unit, is used for the timing length that average switching time and/or maximum switching delay parameter according to wireless communication system are provided with described timer.
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| CN102131255A (en) * | 2010-01-15 | 2011-07-20 | 华为技术有限公司 | Switching method and network node (NN) in relay network |
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| EP0786917B1 (en) * | 1996-01-23 | 2013-08-21 | Ntt Mobile Communications Network Inc. | Mobile communication system, network and mobile station |
| 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 |
| CN100399858C (en) * | 2004-09-02 | 2008-07-02 | 大唐移动通信设备有限公司 | Selecting method of switching target community in TDD/CDMA system |
| CN100527884C (en) * | 2006-01-04 | 2009-08-12 | 华为技术有限公司 | A method for switching among cells |
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| CN102131255A (en) * | 2010-01-15 | 2011-07-20 | 华为技术有限公司 | Switching method and network node (NN) in relay network |
| CN102131255B (en) * | 2010-01-15 | 2013-12-04 | 华为技术有限公司 | Switching method and network node (NN) in relay network |
| CN103945537A (en) * | 2013-01-18 | 2014-07-23 | 中兴通讯股份有限公司 | Radio resource management method, device and system |
| WO2014110914A1 (en) * | 2013-01-18 | 2014-07-24 | 中兴通讯股份有限公司 | Method, apparatus and system for wireless resource management |
| US9775137B2 (en) | 2013-01-18 | 2017-09-26 | Xi'an Zte New Software Company Limited | Radio resource management method, device and system |
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| CN101345986B (en) | 2011-05-04 |
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