CN201204698Y - Wireless transmit-receive unit for processing radio link and switch failure - Google Patents
Wireless transmit-receive unit for processing radio link and switch failure Download PDFInfo
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- CN201204698Y CN201204698Y CNU2008201163627U CN200820116362U CN201204698Y CN 201204698 Y CN201204698 Y CN 201204698Y CN U2008201163627 U CNU2008201163627 U CN U2008201163627U CN 200820116362 U CN200820116362 U CN 200820116362U CN 201204698 Y CN201204698 Y CN 201204698Y
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Abstract
The utility model discloses a wireless emission receiving unit used for radio link and switching failure treatment. The wireless emission receiving unit processes the radio link and switches failure based on context transmission detail and RACH process with reinforced failure processing procedure. After the RL failure, the user equipment includes UE mark, eNodeB of information element in radio resource control connection request and or district updating message or any other RRC message, and/or district mark.
Description
Technical field
The utility model relates to wireless communication system.
Background technology
In the 2nd stage of evolved universal terrestrial radio access network (E-UTRAN), will list as further research (FFS) in the situation that radio link (RL) failure back wireless transmission receiving element (WTRU) selects to belong to the sub-district of same eNodeB.It was suggested if WTRU selects different sub-districts from same eNodeB, then do not had the mutual activity between WTRU and the eNodeB to be resumed.Current, radio access network 2 (RAN2) is if regulation WTRU selects the sub-district from different eNodeB, and then it need be controlled (RRC) and becomes the free time by radio resource.
Current, be based on about the RAN2 decision of RL failure that two stages determine.The behavior that these two stage managements and RL failure is associated, and show at Fig. 1.
When detecting radio problem, the phase I, this phase I has caused the RL failure detection.Thus, not based on timer or other (for example, counting) standard (T
1) the mobility based on WTRU.
When detecting the radio link failure, second stage begins, and this second stage has caused the RRC free time.Mobility based on WTRU remains effectively, and it is based on (the T of timer
2).
Following table 1 described about RL fail mobility current how processedly be.
Table 1: mobility and radio link failure
| Situation | Phase I | Second stage | T 2Stop |
| UE returns same sub-district | As taking place, radio problem do not continue | Not having the mutual activity between UE and the eNodeB not to be resumed, is FFS with the process of using, usually not by RRC_IDLE (RRC_ free time) | Pass through RRC_IDLE |
| UE is from same | N/A | FFS | By |
| ENodeB selects different sub-districts | RRC_IDLE | ||
| UE selects the sub-district of different e NodeB | N/A | Pass through RRC_IDLE | Pass through RRC_IDLE |
Recently propose switching is divided into two (2) stages that are similar to the RL failure, and advise similar handoff failure processing procedure.
In the phase I, WTRU manages synchronously and inserts Target cell, as at timer T
1During this time.In second stage, after the handoff failure, WTRU just interrupted switching and manage to rebuild lost with being connected of network, for example, at timer T
2During this time.After second stage, UE enters RRC_IDLE.
Fig. 2 showed according to current two stages that are proposed in the activity that is associated with handoff failure by management during the mobility of network control.
Phase I is when starting from attempting for the first time Target cell synchronous; And cause handover failure detection.At this time durations, based on the mobility of WTRU, it is not based on (the T of timer or other (for example counting) standard
1).
When second stage started from handover failure detection, it had caused RRC_IDLE.Based on timer (T
2), remain effective based on the mobility of WTRU.
How processed table 2 has been described about the handoff failure mobility is.
Table 2: mobility and handoff failure
| Situation | Phase I | Second stage | T 2Stop |
| UE target approach sub-district | As taking place, do not continue radio | Do not have the mutual activity between UE and the eNodeB not to be resumed, UE carries out random access procedure according to 10.1.5 | Pass through RRC_IDLE |
| UE returns the cell-of-origin | N/A | Do not have the interacting activity between UE and the eNodeB not to be resumed, carry out the process that inserts at random according to 10.1.5 UE | Pass through RRC_IDLE |
| UE selects different sub-districts but not target or cell-of-origin | N/A | Pass through RRC_IDLE | Pass through RRC_IDLE |
And inserting at random based on uncontested between transfer period used in current permission.Similarly, current being included in the down link (DL) based on uncontested random access procedure that shows among Fig. 3 distributes random access preamble via dedicated signaling, wherein eNodeB distributes the nothing dispute random access preamble (that is, not at the random access preamble within the set of being broadcasted on the BCH) of six (6) bits to WTRU.Under the situation that the DL data arrive, described preamble uses medium access controls (MAC) signaling (for example, layer 1 (L1)/layer 2 (L2) control channel or MAC control Packet Data Unit (PDU)) via being sent with switching (HO) instruction that is used to switch by also sending from source eNodeB of target eNode B generation.
Then, WTRU transmits the nothing dispute random access preamble that is assigned with on RACH in up link.Accidental access response from eNB sends on DL-SCH.This response (is in the variable window of one or more Transmission Time Intervals (TTI) in size) and message 1 half synchronously and be sent to C-RNTI or RA-RNTI (FFS) on the L1/L2 control channel.
Accidental access response comprises timing allocation information and the initial UL permission that is used to switch at least and is used for the timing allocation information that the DL data arrive.In addition, RA preamble identifier is sent to Routing Area radio net temporary identifier (RA-RNTI) on the L1/L2 control channel.
If this response is sent to sub-district RNTI (C-RNTI) on the L1/L2 control channel, then this response is only used for a WTRU in a downlink sharied signal channel (DL-SCH) message, if perhaps this response is sent to RA-RNTI on the L1/L2 control channel, then should response use for the one or more WTRU in the DL-SCH message.
Need a kind of improved equipment that is used to handle radio link and handoff failure.
The utility model content
Disclosed equipment is used for handling RL and handoff failure based on context transfer details and RACH process, and this RACH process has strengthened the failure processing procedure.After the RL failure, wireless transmission receiving element (WTRU) comprises WTRU sign and the evolved node-b (eNB) of the information element (IE) of conduct in RRC connection request and/or cell update message or any other RRC message and/or the identifier of sub-district.
Description of drawings
From obtaining more detailed understanding as the detailed description that embodiment provides below in conjunction with accompanying drawing.Wherein:
Fig. 1 shows traditional radio link failure;
Fig. 2 shows traditional handoff failure;
Fig. 3 shows traditional based on uncontested random access procedure;
Fig. 4 is the block diagram of wireless communication system; And
Fig. 5 shows the disclosed flow chart that is used to handle the method for radio link failure.
Embodiment
The term of hereinafter quoting " wireless transmitter/receiver unit (WTRU) " is including, but not limited to the subscriber equipment that can work in wireless environment of subscriber equipment (UE), mobile radio station, fixing or moving user unit, beep-pager, cell phone, PDA(Personal Digital Assistant), computer or other any kind.The term of hereinafter quoting " base station " is including, but not limited to node-b, site controller, access point (AP) or other any interface equipment that can work in wireless environment.
With reference to figure 4, LTE cordless communication network (NW) 10, for example, comprise one or more WTRU20, one or more Node B 30 and one or more sub-district 40, each WTRU comprises processor 21, each Node B 30 comprises processor 31, and each sub-district 40 comprises one or more Node B (NB or eNB) 30.Processor 21 and 31 all is configured to carry out the disclosed method that is used to handle radio link (RL) and handoff failure.
In whole disclosed method, contextual information is meant the context that may be continued of any radio resource control (RRC) context, safe context, PDCP (PDCP) context or any layer in mobility.Yet for the purpose of brief, term context or RRC context can be used as the context of top disclosed each type.
When the RL failure is detected by WTRU 20, WTRU 20 beginning mobile process, (that is sub-district gravity treatment).In common cell reselection process, WTRU 20 arrives any available sub-district in RL failure back gravity treatment, and by cell update or radio resource control (RRC) connection request, WTRU20 sends its WTRU and identifies to eNodeB (eNB) 30.Whether eNB 30 uses the WTRU label detection WTRU 20 before the radio link failure takes place that receives to be under the control of this eNB 30.
A kind of method and apparatus is disclosed, wherein at radio link (RL) or after switching (HO) failure, WTRU 20 comprises that its WTRU sign (for example TMSI/IMSI/IMEI or any other UE sign) and eNB sign and/or cell ID are as the information element (IE) in RRC connection request, cell update message or any other RRC message.
In case WTRU 20 resides in after the gravity treatment of sub-district on the eNB (that is, target eNB), the information that is comprised among the IE is transferred into described target eNB.If WTRU 20 resident target eNB be different from before RL failure WTRU 20 resident eNB (promptly, source eNB), then described target eNB uses the eNB sign and/or the sub-district ID that are comprised among the IE to get in touch source eNB, so that the sign of WTRU 20 is informed source eNB.Then, target eNB request source eNB transmits the context parameters of WTRU 20.Replacedly, target eNB also can be informed cell ID source eNB.
If source eNB has found the contextual information that the sign with WTRU 20 is complementary, then described source eNB is sent to target eNB with this contextual information.Then, described target eNB can be sent to response WTRU 20 cell updates, RRC connection request or any RRC process that other is initiated by WTRU, the context before indication WTRU 20 may reuse.
If described context is not found by source eNB that then target eNB is carried out cell update/RRC connection and set up process or any other RRC process.Receive from WTRU 20 under the situation that rebulids the RRC connection requests in target eNB, described target eNB sends all layers 1 and layer 2/3 parameter with signal, should be new RRC originally as it and connects and send the signal.Then, WTRU 20 can delete any contextual information of having stored that is applicable to old sub-district.Replacedly, if do not find context, then WTRU 20 can enter RRC idle and not waiting timer T2 stop, and restart process or waiting timer T2 stops to enter the RRC free time.
Disclosed comprise about WTRU 20 last the IE of information of resident eNB can be comprised by WTRU 20.According to this alternative embodiment, only processor 21 just comprises eNB sign and/or cell ID in IE when detecting handoff failure.
If if WTRU 20 resident target eNB and eNB identical with source eNB before the failure found to be used for the context of WTRU 20, (whether eNB has the context that the sign with WTRU20 is complementary by check eNB is found described context), then when receiving RRC CONNECTION REQUEST (RRC connection request) from WTRU 20 (or when receiving any RRC process that other is initiated by WTRU), the identical contextual information that eNB can indicate WTRU 20 to use eNB to be had before failure takes place.Otherwise eNB can be sent to WTRU 20 with signal with all layers 1 and layer 2/3 parameter, should be new RRC as eNB and connects and send the signal.Then, WTRU 20 can delete any contextual information of having stored.
The employed flow chart that is used to handle the method for RL failure of disclosed processor 21 by WTRU 20 is described below.When detecting the RL failure (step 500), WTRU 20 indications are used to be linked into the process (step 501) of selected target eNB.Then, WTRU 20 transmits IE to target eNB, this IE comprise at least before the WTRU 20 the eNB ID (step 502) of resident source eNB.Then, after the RRC context was obtained by target eNB, WTRU 20 received this context from target eNB, for example, receives from source eNB.
According to disclosed method, the duration in target eNB reservation radio access control (RAC) contextual cycle is preferably decided based on specific implementation.Whether the transmission of determining the contextual information between target eNB and the source eNB only takes place when radio link is failed also is such.
If WTRU 20 resident target eNB and WTRU 20 before switching resident source eNB identical, then when receiving RRC CONNECTION REQUEST from WTRU 20 or receiving any RRC process that other is initiated by WTRU, the identical contextual information that can indicate WTRU 20 to use eNB before failure takes place, to be had.
Such just as the skilled personnel to understand, reside in WTRU 20 and before the RL failure, help to have saved Internet resources with regard to resident same sub-district or the WTRU on the same eNB 20.Similarly, disclosed method can replacedly be included in during the cell selecting process after the RL failure, and WTRU 20 considers source eNB sign, therefore than the sub-district from different e NB, preferably from the sub-district of source eNB.According to this alternative embodiment, preferably, WTRU 20 determine with following order before the priority of detected eNB: the WTRU 20 resident last sub-district; Before the WTRU 20 resident sub-district from same eNodeB; And from the sub-district of any other eNodeB.
Because after failure, initiation resident fast and that call out is a main standards, can also can not considered in the situation of radio link failure by WTRU 20 so be used for other parameter of sub-district gravity treatment; Only obtain eNB sign (or cell ID), and after the cell signal strength, just be enough to when radio link is failed, instruct cell selecting.According to this method, described sign (eNB and sub-district) can be broadcasted in system information with sub-district ID.
For handoff failure, a kind of method is disclosed, wherein move to different sub-districts and this different sub-district when belonging to same eNB as WTRU 20, based on WTRU 20 signs, what WTRU 20 had moved to determines whether this eNB has WTRU 20 contexts.If this eNB has described context, then eNB informs that with signal WTRU 20 uses and identical before context.Because this context is stored about eNB rather than about the sub-district, so WTRU 20 can use identical context.Method as an alternative, according to this method, as top disclosed, the same priority of the cell selecting of the RL of being used for failure described above is applicable to the eNB handoff failure.
When WTRU 20 moves to sub-district from diverse eNB, above the disclosed same process that is used for the radio link failure also can be used.It should be noted that in such handoff procedure according to the stage of handoff failure process, last eNB sign that WTRU 20 can store can be source eNB or target eNB.According to the method for the disclosure, preferably, WTRU 20 with source eNB be stored as WTRU 20 resident last eNB, up to completing successfully switching.No matter WTRU whether send source eNB or target eNB identify to WTRU resident last eNB, self can not be affected this process.
Can regain a contextual importance and be because WTRU is resident to the sub-district and transmission message 1 (being random access preamble) in the RACH process as soon as possible.If in this process delay is arranged, then eNB should delete this context, and it is invalid therefore to make context recapture process.Therefore, the method for enhancing Random Access Channel (RACH) process of a kind of RL of being used for and handoff failure is disclosed.According to this method, special marker is assigned to WTRU 20 during handoff procedure.Then, the special marker of being distributed is used as and then RL or handoff failure access cell-of-origin.For example, HO instruction (or any signaling message) is that WTRU 20 distributes two special marker, under the situation that failure takes place (for example, if WTRU 20 can not manage to insert Target cell), a special marker will be used for inserting Target cell by WTRU 20, and another special marker will be used for inserting cell-of-origin (or any other sub-district) by WTRU 20.
Completed successfully if switch, then WTRU 20 can (implicit expression or explicit) discharge back network with mark in switch acknowledgment message.Under the situation of failing between transfer period, WTRU 20 can use this second special marker and attempt access network as early as possible.Because WTRU 20 has used special marker, so can from failure, recover quickly.
Replacedly, one group of special marker is broadcasted to be used for the RL failure exclusively in broadcast channel (BCH) group, and this group special marker is to be used by WTRU 20 under the situation of RL or handoff failure.In another alternative embodiment, one group in all sub-districts all effectively universal dedicated signature can be used for RL failure.This group universal dedicated signature can be sent out in switching message, or is broadcasted in system information.Then, WTRU can use this universal dedicated signature to insert any sub-district after failure.
An interchangeable RACH process is disclosed, rather than will under the situation of failure, the special marker that use distribute to WTRU 20, at least one mark (for example random access preamble) in broadcast on BCH current group can be determined/keep to be used for the access sub-district of and then failing.According to this alternative embodiment, the mark that WTRU 20 is kept from the BCH acquisition (perhaps switch (HO) instruction and can inform the mark that is kept that WTRU 20 will be used under the situation of failure).In case the mark that WTRU 20 acquisitions are kept, if WTRU 20 experience RL or handoff failures, then WTRU 20 uses the marks that this kept.
Another alternative embodiment is disclosed, and the higher access grade that wherein is used for RL failure processing is used.According to this alternative embodiment, WTRU 20 handles the RL failure and higher access grade service linkage, and therefore may finish the gravity treatment of network with lower compensation or higher priority.Under these circumstances, when WTRU 20 attempts in access sub-district, RL failure back, because WTRU 20 may have higher access grade service, and therefore may attempt with lower compensation or do not have different RACH between attempting backoff interval access network 10.Similarly, back WTRU 20 may have the higher possibility with lower access grade service access network than other WTRU in the RL failure, and it may have longer backoff interval.
Be used for RACH at another and insert the replacement method, WTRU 20 increases its power quickly, and network has highlyer to its chance that detects thus, and therefore distinguishes the priority of given WTRU 20.Table 3 has been described the mobility of WTRU 20 during the RL failure according to the method for the disclosure.
Table 3: mobility and radio link failure
| Situation | Phase I | Second stage | T2 stops | The priority of cell selecting |
| UE returns same sub-district | As taking place, radio problem do not continue | Not having the mutual activity between WTRU and the eNodeB not to be resumed, is FFS with the process that is used, and does not pass through RRC_IDLE usually | Pass through |
1 |
| UE selects from same eNodeB | N/A | Do not have WTRU and eNodeB it | Pass through |
2 |
| Different sub-districts | Between mutual activity can not be resumed | |||
| UE selects the sub-district of different e NodeB | N/A | Not having the mutual activity between WTRU and the eNodeB not to be resumed, is FFS with the process that is used, and does not pass through RRC_IDLE usually | Pass through |
3 |
For second stage, in order to turn back to same sub-district as WTRU 20 or to recover active as WTRU 20 when same eNodeB or different eNB select different sub-districts, a kind of method is disclosed, wherein WTRU 20 inserts the sub-district by random access procedure.Employed Non-Access Stratum (NAS) sign also is used for determining by eNB whether eNB has the RRC context of being stored for described WTRU 20 in the random access procedure.If eNB has found the RRC context of coupling WTRU 20 signs, then eNB (for example sends message in response to RRC CONNECTIONION REQUEST, RRCCONNECTION RESPONSE (RRC connection response)) or any RRC process that other is initiated by WTRU, indication WTRU 20 reuses the RRC context that it has been stored.
If eNB does not find to mate the RRC context of WTRU 20 signs, then new eNB uses the eNB that is transmitted by WTRU 20 to identify and contacts directly resident eNB before.As top disclosed, replacedly, eNB can obtain WTRU sign or WTRU context from mobile management entity (MME).
If context is found and is transmitted in old eNB, then eNB (for example sends message in response to RRCCONNECTION REQUEST, RRC CONNECTIONRESPONSE), or any RRC process that other is initiated by WTRU, indication WTRU 20 reuses the RRC context that it has been stored.If in new and old eNB, all do not find context, RRC then takes place connect and set up process, and WTRU 20 abandons the RRC context that it has been stored.Under the situation of network transmission by the response of the RRC process of WTRU 20 initiations, whether network 10 indication WTRU 20 can use its old contextual information that has before failure to set up stack, and perhaps network 10 sends new parameter and sets up its stack to be used for WTRU 20 in response message.In case WTRU20 receives response message and it is handled from network 10, WTRU 20 transmits and finishes message and finished configuration to network 10 in one side to be used for indication network 10.
Following table 4 has been described the mobility of the WTRU 20 during the handoff failure according to disclosed method.
Table 4: mobility and handoff failure
| Situation | Phase I | Second stage | T2 stops | The priority of cell selecting |
| UE target approach sub-district | As there not being wireless issue to take place to continue | Do not have mutual between WTRU and the eNodeB, activity can not be resumed | Pass through |
1 |
| UE returns the cell-of-origin | N/A | Do not have mutual between UE and the eNodeB, activity can not be resumed | Pass through |
2 |
| UE selects different sub-districts from same eNodeB | N/A | Do not have mutual between UE and the eNodeB, activity can not be resumed, and is FFS with the process that is used, and does not pass through RRC_IDLE usually | Pass through |
3 |
| UE selects the sub-district of different e Node B | N/A | Do not have mutual between UE and the eNodeB, activity can not be resumed, and is FFS with the process that is used, and does not pass through RRC_IDLE usually | Pass through RRC_IDLE | 4 |
For second stage, in order to recover active when same eNB or different eNB select different sub-districts when WTRU20 returns same sub-district or as WTRU 20, a kind of method is disclosed, and wherein WTRU 20 inserts the sub-district by random access procedure.The Non-Access Stratum that uses in random access procedure (NAS) sign also is used for determining by eNB whether eNB has the RRC context of having stored that is used for WTRU 20.If eNB has found the RRC context of the sign of coupling WTRU 20, then eNB (for example sends message in response to RRC CONNECTION REQUEST, RRCCONNECTION RESPONSE) or any RRC process that other is initiated by WTRU, indication WTRU 20 reuses the RRC context that it has been stored.
If eNB does not find to mate the RRC context of the sign of WTRU 20, resident eNB before then new eNB uses the eNB that is transmitted by WTRU 20 to identify to contact directly.As top disclosed, replacedly, eNB can obtain WTRU sign or WTRU context from MME.
If context is found and is transmitted in old eNB, then this context response (for example sends message in RRCCONNECTION REQUEST, RRC CONNECTIONRESPONSE) or any RRC process that other is initiated by WTRU, indication WTRU 20 reuses the RRC context that it has been stored.If all do not find context in new or old eNB, common RRC then takes place connect and set up process and WTRU 20 preferably abandons the RRC context that it has been stored.Should be noted that the use at the priority row of the cell selecting of table 3 and 4 is a replacement method, and no matter priority is used if be used for other priority of cell selecting/gravity treatment, then disclosed process is still available.
Though feature of the present utility model and element are described with particular combination in the above-described embodiment, but each feature or element can be under the situation that does not have other features and element use separately, or with or with under the various situations that other features and element combine do not use.Method that the utility model provides or flow chart can be implemented in computer program, software or the firmware carried out by all-purpose computer or processor, and wherein said computer program, software or firmware are to be included in the computer-readable recording medium in tangible mode.The light medium that comprises magnetizing mediums, magnet-optical medium and the CD-ROM video disc of read-only memory (ROM), random-access memory (ram), register, buffer storage, semiconductor memory apparatus, internal hard drive and moveable magnetic disc and so on and digital versatile disc (DVD) and so on about the example of computer-readable recording medium.
For instance, appropriate processor comprises: general processor, application specific processor, conventional processors, digital signal processor (DSP), a plurality of microprocessor, the one or more microprocessors that are associated with the DSP core, controller, microcontroller, application-specific integrated circuit (ASIC) (ASIC), field programmable gate array (FPGA) circuit, any integrated circuit (IC) and/or state machine.
The processor that is associated with software can be used to realize a radio frequency transceiver, so that used in wireless transmission receiving element (WTRU), subscriber equipment (UE), terminal, base station, radio network controller (RNC) or any host computer.WTRU can be used in combination with the module that adopts hardware and/or form of software to implement, for example camera, camara module, video telephone, speaker-phone, vibratory equipment, loud speaker, microphone, TV transceiver, Earphone with microphone, keyboard, bluetooth
Module, frequency modulation (FM) radio-cell, LCD (LCD) display unit, Organic Light Emitting Diode (OLED) display unit, digital music player, media player, video game machine module, explorer and/or any wireless lan (wlan) or ultra broadband (UWB) module.
Claims (12)
1. a wireless transmission receiving element is characterized in that, this wireless transmission receiving element comprises:
Be used to detect the processor of failure, described failure comprises at least one in radio link failure or the handoff failure;
Transmitter is used to transmit wireless transmission receiving element sign and information element to target node b, and described information element comprises at least one in Node B sign and the cell ID; And
Receiver, be used for to small part based on described information element, receive contextual information from described target node b.
2. wireless transmission receiving element according to claim 1 is characterized in that, described Node B sign is the sign of source node B, and described wireless transmission receiving element resides in this source node B before detecting failure.
3. wireless transmission receiving element according to claim 2 is characterized in that call identification is the sign of sub-district, and described wireless transmission receiving element resides in this sub-district before detecting failure.
4. wireless transmission receiving element according to claim 2 is characterized in that, described processor is stored the source node B sign of described source node B.
5. wireless transmission receiving element according to claim 4 is characterized in that, described processor is carried out the sub-district gravity treatment to select available target node b.
6. wireless transmission receiving element according to claim 5 is characterized in that, described processor uses the source node B that the is stored sign of considering when selecting described target node b.
7. wireless transmission receiving element according to claim 6, it is characterized in that, described processor is attempted to come gravity treatment to arrive source node B by any other Node B, and then when described source node B was unavailable, described processor was attempted gravity treatment and gone back to the cell-of-origin that is associated with the cell-of-origin sign.
8. wireless transmission receiving element according to claim 7 is characterized in that, described target node b and Target cell are different from described source node B and cell-of-origin.
9. wireless transmission receiving element according to claim 7 is characterized in that described processor was stored contextual information before detecting failure.
10. wireless transmission receiving element according to claim 9 is characterized in that, described contextual information comprises using the indication of stored contextual information.
11. wireless transmission receiving element according to claim 9 is characterized in that, described contextual information comprises and the different contextual information of described stored contextual information.
12. wireless transmission receiving element according to claim 1 is characterized in that, at least one during compensation that described processor use is littler or higher power increase comes access network.
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| US91331607P | 2007-04-23 | 2007-04-23 | |
| US60/913,316 | 2007-04-23 | ||
| US60/944,542 | 2007-06-18 |
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| CN200880013514A Pending CN101669335A (en) | 2007-04-23 | 2008-04-23 | Radio link and handoff failure are handled |
| CN201510958376.8A Pending CN105578543A (en) | 2007-04-23 | 2008-04-23 | WTRU, eNB and method for implementing in WTRU and eNB |
| CNU2008201163627U Expired - Lifetime CN201204698Y (en) | 2007-04-23 | 2008-04-23 | Wireless transmit-receive unit for processing radio link and switch failure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101873655A (en) * | 2009-04-24 | 2010-10-27 | 中兴通讯股份有限公司 | Method and device for processing radio link failure in the process of switching user terminal |
| WO2010124430A1 (en) * | 2009-04-27 | 2010-11-04 | 华为技术有限公司 | Service recovery method, device and system for wireless communication networks |
| WO2011006376A1 (en) * | 2009-07-15 | 2011-01-20 | 中兴通讯股份有限公司 | Method and device for informing handover failure indication information |
| CN102215545A (en) * | 2010-04-09 | 2011-10-12 | 中国移动通信集团公司 | Method and device for re-establishing return link in relay network |
| CN103548386A (en) * | 2011-05-20 | 2014-01-29 | 诺基亚公司 | Pre-configured redirection information |
| CN105407541A (en) * | 2009-04-27 | 2016-03-16 | 华为技术有限公司 | Business recovery method, device and system of radio communication network |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102413528B (en) * | 2010-09-21 | 2015-09-16 | 中兴通讯股份有限公司 | The processing method of handoff failure and subscriber equipment |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1023501A (en) * | 1996-07-03 | 1998-01-23 | Fujitsu Ltd | Inter-station hand-over system for mobile terminal equipment |
| EP1765030A1 (en) * | 2005-09-19 | 2007-03-21 | Mitsubishi Electric Information Technology Centre Europe B.V. | Method for transferring the context of a mobile terminal in a wireless telecommunication network |
-
2008
- 2008-04-23 CN CN200880013514A patent/CN101669335A/en active Pending
- 2008-04-23 PL PL12169682T patent/PL2519052T3/en unknown
- 2008-04-23 CN CN201510958376.8A patent/CN105578543A/en active Pending
- 2008-04-23 CN CNU2008201163627U patent/CN201204698Y/en not_active Expired - Lifetime
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| CN102215545B (en) * | 2010-04-09 | 2014-07-02 | 中国移动通信集团公司 | Method and device for re-establishing return link in relay network |
| CN102215545A (en) * | 2010-04-09 | 2011-10-12 | 中国移动通信集团公司 | Method and device for re-establishing return link in relay network |
| CN103548386A (en) * | 2011-05-20 | 2014-01-29 | 诺基亚公司 | Pre-configured redirection information |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101669335A (en) | 2010-03-10 |
| PL2519052T3 (en) | 2017-08-31 |
| CN105578543A (en) | 2016-05-11 |
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