CN102196590A - Method and equipment for judging radio link failure - Google Patents

Method and equipment for judging radio link failure Download PDF

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Publication number
CN102196590A
CN102196590A CN2010101292418A CN201010129241A CN102196590A CN 102196590 A CN102196590 A CN 102196590A CN 2010101292418 A CN2010101292418 A CN 2010101292418A CN 201010129241 A CN201010129241 A CN 201010129241A CN 102196590 A CN102196590 A CN 102196590A
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random
access
carrier
competing
link
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CN2010101292418A
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CN102196590B (en
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李海涛
许芳丽
赵亚利
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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Priority to CN201010129241.8A priority Critical patent/CN102196590B/en
Priority to PCT/CN2011/071950 priority patent/WO2011113371A1/en
Publication of CN102196590A publication Critical patent/CN102196590A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access, e.g. scheduled or random access
    • H04W74/08—Non-scheduled or contention based access, e.g. random access, ALOHA, CSMA [Carrier Sense Multiple Access]

Abstract

The embodiment of the invention discloses a method and equipment for judging radio link failure. The method comprises the following steps: an MAC (Media Access Control) layer of user equipment initiates random access on one or more carriers; if the random accesses of all the carriers of the user equipment are unsuccessfully tried, the MAC layer reports a random access failure indication to an RRC (Radio Resource Control) layer of the user equipment; and the RRC layer judges that the user equipment generates the radio link failure according to the random access failure indication. The embodiment of the invention has the following advantage of solving the problems that how to judge the radio link failure under carrier aggregation by judging the radio link failure aiming at the UE (User Equipment) but not a single carrier.

Description

A kind of method and apparatus of adjudicating Radio Link Failure
Technical field
The present invention relates to the mobile communication technology field, particularly relate to a kind of method and apparatus of adjudicating Radio Link Failure.
Background technology
The peak rate of LTE-A (Long Term Evolution Advanced, senior Long Term Evolution) system has huge raising than LTE (Long Term Evolution, Long Term Evolution) system, requires to reach descending 1Gbps, up 500Mbps.Simultaneously, LTE-A system requirements and LTE system are compatible well, the maximum bandwidth 20MHz of LTE system.Based on improve peak rate, with the LTE system compatible with make full use of the needs of frequency resource, the LTE-A system has introduced CA (Carrier Aggregation, carrier aggregation) technology.As shown in Figure 1, be the carrier format schematic diagram of LTE system; As shown in Figure 2, be the carrier aggregation form schematic diagram of LTE-A system.
A plurality of member carriers (upstream or downstream) in the CA technology condense together, and are the UE service simultaneously, rather than have only the pattern of a cover carrier wave before in LTE system and the wireless communication system.Base station (as eNB) is to unified management of many covers member carrier and scheduling, and the conversion of different members intercarrier is a resource allocation problem in a base station.Member carrier can be continuous or discrete, for the LTE system compatible, the maximum bandwidth of each member carrier is 20MHz, the bandwidth between each member carrier can be identical or different.The type of the member carrier in the CA technology comprises backward compatibility carrier wave (backwards compatiblecarrier), non-backward compatible carrier waves (Non-backwards compatible carrier) and expansion carrier wave (Extension carrier) etc., wherein, backward compatibility carrier wave and LTE system compatible, can independently exist, also can be used as the part of carrier aggregation, at FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) in the system, the backward compatibility carrier wave always occurs in pairs, be DL (Down Link, down link) carrier wave and UL (Up Link, up link) carrier wave always matches; Non-backward compatible carrier waves not with the LTE system compatible of earlier version, can independently exist, also can be used as the part of carrier aggregation; The expansion carrier wave can not independently exist, a part as carrier aggregation.
When UE (User Equipment, subscriber equipment) is under the carrier aggregation operating state, one or more specific carriers that can define in its polymerization carrier wave are the main carrier of UE.The main carrier of UE can be by network configuration, for example, the carrier wave of UE Serving cell is defined as the main carrier of UE, UE can only monitor the system information on the main carrier, carrying out the sub-district based on main carrier switches, perhaps only monitor the PDCCH (Physical Downlink Control Channel, physical downlink control channel) of main carrier etc.In general, the main carrier of UE has only one.In the carrier aggregation transmission course, the main carrier of UE can remain unchanged, and also can be reconfigured by network.
In the LTE system, UE judges whether to detect Radio Link Failure (RadioLink Failure) based on following condition: the T310 timer expiry; Receive the indication of access problem at random that the MAC layer reports, work as T300, T301, T304 is when the T311 timer is invalid; Receive the indication of the arrival maximum retransmission that rlc layer reports.
Wherein, T310 is relevant with step-out " out-of-sync " indication with physical layer synchronization " in-sync ", and concrete rule is: receive N310 " out-of-sync " indication and the T300 that sends from bottom continuously as UE, T301, T304 when the T311 timer is invalid, then starts timer T310; When the T310 run duration, receive N311 " in-sync " indication from bottom continuously, then UE stops timer T310.
In addition, T300 is used for RRC (Radio Resource Control, Radio Resource control) and connects and set up process, and T301 and T311 are used for RRC connection reconstruction process, and T304 is used for handoff procedure.When RRC connects the process of setting up, RRC connection reconstruction process or handoff procedure generation, rrc layer will be ignored the indication of access problem at random that the MAC layer reports, and can not adjudicate UE Radio Link Failure has taken place.
The inventor is in realizing process of the present invention, and there are the following problems at least to find prior art:
Radio Link Failure decision method in the LTE system all is based on single carrier, promptly carries out at a work carrier wave, and when being applied to carrier aggregation mechanism, in the time of can causing a carrier wave wireless link-quality variation, other all carrier waves all inoperable situations.
Summary of the invention
The embodiment of the invention provides a kind of method and apparatus of adjudicating Radio Link Failure, is used to solve the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
The embodiment of the invention proposes a kind of method of adjudicating Radio Link Failure, may further comprise the steps:
The MAC layer of subscriber equipment initiates to insert at random on one or more carrier waves;
If the access attempts at random on all carrier waves of described subscriber equipment is not success all, the radio resource control RRC layer of the described subscriber equipment of described MAC course reports access failure indication at random;
Described rrc layer is according to the described subscriber equipment generation Radio Link Failure of the described indication of access failure at random judgement.
Preferably, the MAC layer of described subscriber equipment initiates to insert at random on one or more carrier waves, comprising:
Described MAC layer is accepted the triggering that base station equipment is initiated by a descending carrier, initiates non-competing access at random on the up-link carrier of described descending carrier correspondence;
If the largest random that allows on the described up-link carrier that reaches the described non-competing number of times that inserts at random inserts number of times and described non-competing access at random success yet, described MAC layer is initiated the access at random based on competition on other dispose the up-link carrier of Random Access Channel RACH.
Preferably, the access attempts at random on all carrier waves of described subscriber equipment is not success all, is specially:
The largest random that allows on each self-corresponding up-link carrier that reaches the described number of times that inserts at random based on competition inserts number of times and the described success not yet of access at random based on competition.
Preferably, described MAC layer disposes the access of initiating on the up-link carrier of RACH based on competition at random at other, comprising:
Described MAC layer disposes on the up-link carrier of RACH according to time sequencing at described other and initiates access at random based on competition successively; Perhaps
Described MAC layer disposes the access of initiating simultaneously on the up-link carrier of RACH based on competition at random at described other.
Preferably, the MAC layer of described subscriber equipment initiates to insert at random on one or more carrier waves, comprising:
Described MAC layer is accepted the triggering that base station equipment is initiated by one or more descending carriers, initiates non-competing access at random on a plurality of up-link carriers.
Preferably, the access attempts at random on all carrier waves of described subscriber equipment is not success all, is specially:
Describedly reach the largest random that allows on each self-corresponding up-link carrier based on the non-competing number of times that inserts at random and insert number of times and described based on non-competing access at random success yet.
Preferably, described MAC layer is initiated non-competing access at random on a plurality of up-link carriers, comprising:
Described MAC layer is initiated non-competing access at random successively according to time sequencing on a plurality of up-link carriers; Perhaps
Described MAC layer is initiated non-competing access at random simultaneously on a plurality of up-link carriers.
The embodiment of the invention also proposes a kind of subscriber equipment, comprises MAC layer function module and rrc layer functional module,
Described MAC layer function module is used for initiating to insert at random on one or more carrier waves, if all not successes of the access attempts at random on all carrier waves of described subscriber equipment report access failure indication at random to described rrc layer functional module;
Described rrc layer functional module is used for the described subscriber equipment generation Radio Link Failure of the indication of access failure at random judgement that reports according to described MAC layer function module.
Preferably, described MAC layer function module comprises:
Non-competing access submodule is used to accept the triggering that base station equipment is initiated by a descending carrier, initiates non-competing access at random on the up-link carrier of described descending carrier correspondence;
Competition inserts submodule, be used for reaching the largest random that allows on the described up-link carrier and insert number of times and described non-competing access at random yet during success, on other dispose the up-link carrier of Random Access Channel RACH, initiate access at random based on competition at the non-competing number of times that inserts at random that described non-competing access submodule is initiated;
Report submodule, be used for reaching the largest random that allows on each self-corresponding up-link carrier and insert number of times and described, report access failure indication at random to described rrc layer functional module based on the access of competing at random success yet at the number of times that inserts at random that described competition access submodule is initiated based on competition.
Preferably, described competition inserts submodule, is used for disposing on the up-link carrier of RACH according to time sequencing at described other initiating access at random based on competition successively; Perhaps dispose the access of initiating simultaneously on the up-link carrier of RACH based on competition at random at described other.
Preferably, described MAC layer function module comprises:
Non-competing access submodule is used to accept the triggering that base station equipment is initiated by one or more descending carriers, initiates non-competing access at random on a plurality of up-link carriers;
Report submodule, being used for reaching the largest random that allows on each self-corresponding up-link carrier at the number of times that inserts at random based on non-competing that described non-competing access submodule is initiated inserts number of times and describedly yet during success, reports at random access failure indication to described rrc layer functional module based on non-competing access at random.
Preferably, described non-competing access submodule is used for initiating non-competing access at random successively according to time sequencing on a plurality of up-link carriers; Perhaps on a plurality of up-link carriers, initiate non-competing access at random simultaneously.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the carrier format schematic diagram of LTE system;
Fig. 2 is the carrier aggregation form schematic diagram of LTE-A system;
Fig. 3 is a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention one;
Fig. 4 is a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention two;
Fig. 5 is a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention three;
Fig. 6 is a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention four;
Fig. 7 is a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention five;
Fig. 8 is a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention six;
Fig. 9 is a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention seven;
Figure 10 is a kind of user device architecture schematic diagram of the embodiment of the invention eight;
Figure 11 is a kind of user device architecture schematic diagram of the embodiment of the invention nine;
Figure 12 is a kind of user device architecture schematic diagram of the embodiment of the invention ten.
Embodiment
The technical scheme of the embodiment of the invention can be set, have only whole up CC (Carrier Cell, carrier cell) insert when all failing at random on, just can trigger MAC course rrc layer and report at random the access failure indication, rrc layer is according to this access failure indication judgement Radio Link Failure and trigger the RRC connection reconstruction at random.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 3, a kind of method flow diagram of adjudicating Radio Link Failure in the embodiment of the invention one may further comprise the steps:
Step 301, the MAC layer of subscriber equipment are initiated to insert at random on one or more carrier waves.
Step 302, if all not successes of the access attempts at random on all carrier waves of subscriber equipment, the rrc layer of MAC course subscriber equipment reports access failure indication at random.
Particularly, the MAC layer can be accepted the triggering that base station equipment is initiated by a descending carrier, initiates non-competing access at random on the up-link carrier of this descending carrier correspondence; If the largest random that allows on this up-link carrier that reaches the non-competing number of times that inserts at random inserts number of times and this non-competing access at random success not yet, the MAC layer disposes RACH (Random Access Channel at other, Random Access Channel) initiate the access at random based on competition on the up-link carrier, promptly the MAC layer disposes on the up-link carrier of RACH according to time sequencing at described other and initiates access at random based on competition successively; Perhaps the MAC layer disposes the access of initiating simultaneously on the up-link carrier of RACH based on competition at random at described other.Access attempts at random on all carrier waves of above-mentioned subscriber equipment is not success all, is specially: the number of times that inserts at random based on competition reaches largest random access number of times and the described success not yet of access at random based on competition that allows on each self-corresponding up-link carrier.
The MAC layer can also be accepted the triggering that base station equipment is initiated by one or more descending carriers, initiates non-competing access at random on a plurality of up-link carriers, and promptly the MAC layer is initiated non-competing access at random successively according to time sequencing on a plurality of up-link carriers; Perhaps the MAC layer is initiated non-competing access at random simultaneously on a plurality of up-link carriers.Access attempts at random on all carrier waves of above-mentioned subscriber equipment is not success all, is specially: reach the largest random that allows on each self-corresponding up-link carrier based on the non-competing number of times that inserts at random and insert number of times and described based on non-competing access at random success not yet.
Step 303, rrc layer basis be access failure indication judgement subscriber equipment generation Radio Link Failure at random.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
In the embodiment of the invention, base station equipment can trigger UE by a descending carrier and initiate non-competing access at random on the up-link carrier of this descending carrier correspondence; If the largest random that allows on this up-link carrier that reaches this non-competing number of times that inserts at random inserts number of times and this non-competing access at random success yet, UE initiates based on the access of competing at random on other dispose the up-link carrier of RACH.
Wherein, UE can dispose on the up-link carrier of RACH according to time sequencing at above-mentioned other and initiate access at random based on competition successively; Perhaps dispose the access of initiating simultaneously on the up-link carrier of RACH based on competition at random at above-mentioned other.
If the largest random that allows on each self-corresponding up-link carrier that reaches the above-mentioned number of times that inserts at random based on competition inserts number of times and the described success not yet of access at random based on competition, the MAC course rrc layer of UE reports UE access failure indication at random, triggers UE and carries out the RRC connection reconstruction.
Wherein, the largest random that allows on each up-link carrier of UE place inserts number of times and can be obtained by network configuration, and also can be UE insert number of times by network configuration UE level largest random decides distribution on each RACH carrier wave in its sole discretion.
As shown in Figure 4, be a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention two, wherein, the current carrier aggregation transmission state that is in of UE, polymerization three carrier waves: carrier wave 1, carrier wave 2 and carrier wave 3.When downlink data arrived, this method may further comprise the steps:
Step 401, the base station is distributed dedicated preamble resource in the mode of PDCCH order to UE by carrier wave 2, triggers non-competing random access procedure.
Step 402, UE receives PDCCH order, uses the dedicated preamble resource of distributing to initiate N_2 non-competing access at random on carrier wave 2, and does not insert successfully at random yet.
Wherein, N_2 is that the largest random that allows on the carrier wave 2 inserts number of times.
Step 403, the MAC layer of UE are initiated N_1 the access at random based on competition on the carrier wave 1 that has disposed the RACH resource, and do not insert successfully at random yet.
Wherein, N_1 is that the largest random that allows on the carrier wave 1 inserts number of times.
Step 404, the MAC layer of UE are initiated N_3 the access at random based on competition on the carrier wave 3 that has disposed the RACH resource, and do not insert successfully at random yet.
Wherein, N_3 is that the largest random that allows on the carrier wave 3 inserts number of times.
Step 405, the MAC course rrc layer of UE reports the UE indication of access failure at random, and RRC adjudicates Radio Link Failure, triggers UE and carries out RRC connection reconstruction process.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
As shown in Figure 5, a kind of method flow diagram of adjudicating Radio Link Failure for the embodiment of the invention three, wherein, the current carrier aggregation transmission state that is in of UE, polymerization three carrier waves, subsequently, service carrier-quality variation, UE has reported following three quality of target eNB carrier wave preferably according to the mobility measurements of network configuration, is respectively carrier wave 1, carrier wave 2 and carrier wave 3.
Step 501, UE receives the switching command message from target eNB, initiates N_2 non-competing random access procedure according to the dedicated preamble resource that in the switching command message is carrier wave 2 distribution, and does not insert successfully at random yet.
Wherein, N_2 is that the largest random that allows on the carrier wave 2 inserts number of times.
Step 502, the MAC layer of UE are initiated the access at random based on competition simultaneously on carrier wave 1 that has disposed the RACH resource and carrier wave 3, should reach N_1 and N_3 time based on number of times of access at random of competition respectively, and not insert successfully at random yet.
Wherein, N_1 is that the largest random that allows on the carrier wave 1 inserts number of times, and N_3 is that the largest random that allows on the carrier wave 3 inserts number of times.
Step 503, the MAC course rrc layer of UE reports the UE indication of access failure at random, and RRC adjudicates Radio Link Failure, triggers UE and carries out RRC connection reconstruction process.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
In the technical scheme of the embodiment of the invention, base station equipment can also trigger UE by one or more descending carriers and initiate non-competing access at random on a plurality of up-link carriers; Inserted number of times and described if should reach the largest random that allows on each self-corresponding up-link carrier based on non-competing access at random success not yet based on the non-competing number of times that inserts at random, the MAC course rrc layer of UE reports UE access failure indication at random, triggers UE and carries out the RRC connection reconstruction.
Wherein, UE initiates non-competing access at random successively according to time sequencing on a plurality of up-link carriers; Perhaps on a plurality of up-link carriers, initiate non-competing access at random simultaneously.Such scheme need be expanded PDCCHorder, promptly increases corresponding dedicated preamble on carrier wave indication and this carrier wave.The largest random that allows on each up-link carrier of UE place inserts number of times and can be obtained by network configuration, and also can be UE insert number of times by network configuration UE level largest random decides distribution on each RACH carrier wave in its sole discretion.
As shown in Figure 6, be a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention four, the current carrier aggregation transmission state that is in of UE, polymerization three carrier waves: when carrier wave 1, carrier wave 2 and carrier wave 3, downlink data arrived, this method may further comprise the steps:
Step 601, the base station is distributed dedicated preamble resource (preamble_1 and preamble_2) by carrier wave 2 in the mode of PDCCH order, triggers the non-competing random access procedure on carrier wave 1 and the carrier wave 2.
Particularly, in LTE R8, the base station uses the DCI format 1A of C-RNTI scrambling to carry out the non-competing scheduling that inserts at random, concrete DCI length and common DCI format 1A are identical, wherein, preamble Index is for inserting the preamble sequence number at random, and length is 6bits.
PDCCH form after the expansion carries a plurality of dedicated preamble forms, to expand 2 dedicated preamble is example, the PDCCH form comprises preamble Index, CIF_1, preamble Index1, CIF_2 and preamble Index2, wherein, preamble Index is the preamble of the access at random sequence number that the corresponding up-link carrier of current descending carrier distributes, and length is 6bits; CIF_1 and CIF_2 are carrier index, and length is respectively 3bits; The preamble of the access at random sequence number that preamble Index_1 and preamble Index_2 distribute for up-link carrier CIF_1, length is respectively 6bits.
Step 1202 after UE receives PDCCH order, is used dedicated preamble _ 2 resources of distributing to initiate N_2 non-competing access at random on carrier wave 2, and is not inserted successfully at random yet.
Wherein, N_2 is that the largest random that allows on the carrier wave 2 inserts number of times.
Step 603, UE uses dedicated preamble _ 1 resource of distributing to initiate N_1 non-competing access at random on carrier wave 1, and does not insert successfully at random yet.
Wherein, N_1 is that the largest random that allows on the carrier wave 1 inserts number of times.
Step 604, MAC course rrc layer report the UE indication of access failure at random, and RRC adjudicates Radio Link Failure, trigger UE and carry out RRC connection reconstruction process.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
As shown in Figure 7, be a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention five, the current carrier aggregation transmission state that is in of UE, polymerization three carrier waves: carrier wave 1, carrier wave 2 and carrier wave 3, these three carrier waves have different TA.When downlink data arrived, this method may further comprise the steps:
Step 701, the base station is distributed dedicated preamble resource (preamble_1, preamble_2 and preamble_3) by carrier wave 2 in the mode of PDCCH order, triggers the non-competing random access procedure on carrier wave 1, carrier wave 2 and the carrier wave 3.
Step 702, after UE receives PDCCH order, on carrier wave 1, carrier wave 2 and carrier wave 3, use dedicated preamble _ 1, preamble_2 and the preamble_3 resource of distributing separately to initiate non-competing access at random simultaneously, the above-mentioned non-competing number of times that inserts at random reaches N_1, N_2 and N_3 time, and does not insert successfully at random yet.
Wherein, N_1, N_2 and N_3 are respectively the largest random that allows on carrier wave 1,2 and 3 and insert number of times.
Step 703, MAC course rrc layer report the UE indication of access failure at random, and RRC adjudicates Radio Link Failure, trigger UE and carry out RRC connection reconstruction process.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
Non-competing access at random can be initiated by issue PDCCH order triggering UE simultaneously at a plurality of descending carriers in the base station on each self-corresponding up-link carrier, the form of PDCCH order is with the LTE systems compliant, access at random on the up-link carrier can be to initiate simultaneously, also can be successively to initiate.UE attempt on all carrier waves that triggered non-competing insert the maximum retransmission that all reaches carrier wave separately at random after, MAC course rrc layer reports access failure at random, rrc layer judgement UE Radio Link Failure triggers the RRC connection reconstruction.Wherein, the largest random that allows on each up-link carrier of UE place inserts number of times and can be obtained by network configuration, and also can be UE insert number of times by network configuration UE level largest random decides distribution on each RACH carrier wave in its sole discretion.
As shown in Figure 8, be a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention six, the current carrier aggregation transmission state that is in of UE, polymerization three carrier waves: carrier wave 1, carrier wave 2 and carrier wave 3.When downlink data arrived, this method may further comprise the steps:
Step 801, the non-competing random access procedure on carrier wave 1 and the carrier wave 2 is triggered by distributing dedicated preamble resource (preamble_1 and preamble_2) in the mode of PDCCH order simultaneously on carrier wave 1 and the carrier wave 2 in the base station.
Step 802 after UE receives PDCCH order, is used dedicated preamble _ 2 resources of distributing to initiate N_2 non-competing access at random on carrier wave 2, and is not inserted successfully at random yet.
Wherein, N_2 is that the largest random that allows on the carrier wave 2 inserts number of times.
Step 803, UE uses dedicated preamble _ 1 resource of distributing to initiate N_1 non-competing access at random on carrier wave 1, and does not insert successfully at random yet.
Wherein, N_1 is that the largest random that allows on the carrier wave 1 inserts number of times.
Step 804, MAC course rrc layer report the UE indication of access failure at random, and RRC adjudicates Radio Link Failure, trigger UE and carry out RRC connection reconstruction process.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
As shown in Figure 9, be a kind of method flow diagram of adjudicating Radio Link Failure of the embodiment of the invention seven, the current carrier aggregation transmission state that is in of UE, polymerization three carrier waves: carrier wave 1, carrier wave 2 and carrier wave 3, wherein, carrier wave 2 has identical TA with carrier wave 3, and is different with the TA of carrier wave 1.When downlink data arrived, this method may further comprise the steps:
Step 901, dedicated preamble resource (preamble_1 and preamble_2) is distributed in the mode of PDCCH order simultaneously by carrier wave 1 and carrier wave 2 in the base station, triggers the non-competing random access procedure on carrier wave 1 and the carrier wave 2.
Step 902, after UE receives PDCCH order, use dedicated preamble _ 1 distributed separately and preamble_2 resource to initiate simultaneously non-competingly to insert at random on carrier wave 1 and carrier wave 2, the above-mentioned non-competing number of times that inserts at random reaches N_1 and N_2 time, and does not insert successfully at random yet.
Wherein, N_1 and N_2 are respectively the largest random that allows on carrier wave 1 and 2 and insert number of times.
Step 903, MAC course rrc layer report the UE indication of access failure at random, and RRC adjudicates Radio Link Failure, trigger UE and carry out RRC connection reconstruction process.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
As shown in figure 10, a kind of user device architecture schematic diagram for the embodiment of the invention eight comprises MAC layer function module 1010 and rrc layer functional module 1020, wherein,
MAC layer function module 1010 is used for initiating to insert at random on one or more carrier waves, if all not successes of the access attempts at random on all carrier waves of subscriber equipment report access failure indication at random to rrc layer functional module 1020.
Rrc layer functional module 1020 is used for the indication of the access failure at random judgement subscriber equipment generation Radio Link Failure that reports according to MAC layer function module 1010.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
As shown in figure 11, a kind of user device architecture schematic diagram for the embodiment of the invention nine comprises MAC layer function module 1110 and rrc layer functional module 1120, wherein,
MAC layer function module 1110 is used for initiating to insert at random on one or more carrier waves, if all not successes of the access attempts at random on all carrier waves of subscriber equipment report access failure indication at random to rrc layer functional module 1120.
Above-mentioned MAC layer function module 1110 comprises:
Non-competing access submodule 1111 is used to accept the triggering that base station equipment is initiated by a descending carrier, initiates non-competing access at random on the up-link carrier of described descending carrier correspondence.
Competition inserts submodule 1112, be used for reaching the largest random that allows on the described up-link carrier and insert number of times and described non-competing access at random yet during success, on other dispose the up-link carrier of Random Access Channel RACH, initiate access at random based on competition at the non-competing number of times that inserts at random that described non-competing access submodule 1111 is initiated.
Particularly, above-mentioned competition inserts submodule 1112, is used for disposing on the up-link carrier of RACH according to time sequencing at described other initiating access at random based on competition successively; Perhaps dispose the access of initiating simultaneously on the up-link carrier of RACH based on competition at random at described other.
Report submodule 1113, be used for reaching the largest random that allows on each self-corresponding up-link carrier and insert number of times and described, report access failure indication at random to described rrc layer functional module based on the access of competing at random success yet at the number of times that inserts at random that described competition access submodule 1112 is initiated based on competition.
Rrc layer functional module 1120 is used for the indication of the access failure at random judgement subscriber equipment generation Radio Link Failure that reports according to MAC layer function module 1110.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
As shown in figure 12, a kind of user device architecture schematic diagram for the embodiment of the invention ten comprises MAC layer function module 1210 and rrc layer functional module 1220, wherein,
MAC layer function module 1210 is used for initiating to insert at random on one or more carrier waves, if all not successes of the access attempts at random on all carrier waves of subscriber equipment report access failure indication at random to rrc layer functional module 1220.
Above-mentioned MAC layer function module 1210 comprises:
Non-competing access submodule 1211 is used to accept the triggering that base station equipment is initiated by one or more descending carriers, initiates non-competing access at random on a plurality of up-link carriers.
Particularly, above-mentioned non-competing access submodule 1211 is used for initiating non-competing access at random successively according to time sequencing on a plurality of up-link carriers; Perhaps on a plurality of up-link carriers, initiate non-competing access at random simultaneously.
Report submodule 1212, being used for reaching the largest random that allows on each self-corresponding up-link carrier at the number of times that inserts at random based on non-competing that described non-competing access submodule 1211 is initiated inserts number of times and describedly yet during success, reports at random access failure indication to described rrc layer functional module based on non-competing access at random.
Rrc layer functional module 1220 is used for the indication of the access failure at random judgement subscriber equipment generation Radio Link Failure that reports according to MAC layer function module 1210.
The technical scheme of the embodiment of the invention has the following advantages, because carry out the Radio Link Failure judgement at UE rather than single carrier wave, has solved the problem of how to carry out the Radio Link Failure judgement under carrier aggregation.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be integrated in one, and also can separate deployment, can merge into a module, also can further split into a plurality of submodules.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.

Claims (12)

1. a method of adjudicating Radio Link Failure is characterized in that, may further comprise the steps:
The media interviews control MAC layer of subscriber equipment initiates to insert at random on one or more carrier waves;
If the access attempts at random on all carrier waves of described subscriber equipment is not success all, the radio resource control RRC layer of the described subscriber equipment of described MAC course reports access failure indication at random;
Described rrc layer is according to the described subscriber equipment generation Radio Link Failure of the described indication of access failure at random judgement.
2. the method for claim 1 is characterized in that, the MAC layer of described subscriber equipment initiates to insert at random on one or more carrier waves, comprising:
Described MAC layer is accepted the triggering that base station equipment is initiated by a descending carrier, initiates non-competing access at random on the up-link carrier of described descending carrier correspondence;
If the largest random that allows on the described up-link carrier that reaches the described non-competing number of times that inserts at random inserts number of times and described non-competing access at random success yet, described MAC layer is initiated the access at random based on competition on other dispose the up-link carrier of Random Access Channel RACH.
3. method as claimed in claim 2 is characterized in that, the access attempts at random on all carrier waves of described subscriber equipment is not success all, is specially:
The largest random that allows on each self-corresponding up-link carrier that reaches the described number of times that inserts at random based on competition inserts number of times and the described success not yet of access at random based on competition.
4. method as claimed in claim 2 is characterized in that, described MAC layer disposes the access of initiating on the up-link carrier of RACH based on competition at random at other, comprising:
Described MAC layer disposes on the up-link carrier of RACH according to time sequencing at described other and initiates access at random based on competition successively; Perhaps
Described MAC layer disposes the access of initiating simultaneously on the up-link carrier of RACH based on competition at random at described other.
5. the method for claim 1 is characterized in that,
The MAC layer of described subscriber equipment initiates to insert at random on one or more carrier waves, comprising:
Described MAC layer is accepted the triggering that base station equipment is initiated by one or more descending carriers, initiates non-competing access at random on a plurality of up-link carriers.
6. method as claimed in claim 5 is characterized in that, the access attempts at random on all carrier waves of described subscriber equipment is not success all, is specially:
Describedly reach the largest random that allows on each self-corresponding up-link carrier based on the non-competing number of times that inserts at random and insert number of times and described based on non-competing access at random success yet.
7. method as claimed in claim 5 is characterized in that, described MAC layer is initiated non-competing access at random on a plurality of up-link carriers, comprising:
Described MAC layer is initiated non-competing access at random successively according to time sequencing on a plurality of up-link carriers; Perhaps
Described MAC layer is initiated non-competing access at random simultaneously on a plurality of up-link carriers.
8. a subscriber equipment comprises MAC layer function module and rrc layer functional module, it is characterized in that,
Described MAC layer function module is used for initiating to insert at random on one or more carrier waves, if all not successes of the access attempts at random on all carrier waves of described subscriber equipment report access failure indication at random to described rrc layer functional module;
Described rrc layer functional module is used for the described subscriber equipment generation Radio Link Failure of the indication of access failure at random judgement that reports according to described MAC layer function module.
9. subscriber equipment as claimed in claim 8 is characterized in that, described MAC layer function module comprises:
Non-competing access submodule is used to accept the triggering that base station equipment is initiated by a descending carrier, initiates non-competing access at random on the up-link carrier of described descending carrier correspondence;
Competition inserts submodule, be used for reaching the largest random that allows on the described up-link carrier and insert number of times and described non-competing access at random yet during success, on other dispose the up-link carrier of Random Access Channel RACH, initiate access at random based on competition at the non-competing number of times that inserts at random that described non-competing access submodule is initiated;
Report submodule, be used for reaching the largest random that allows on each self-corresponding up-link carrier and insert number of times and described, report access failure indication at random to described rrc layer functional module based on the access of competing at random success yet at the number of times that inserts at random that described competition access submodule is initiated based on competition.
10. subscriber equipment as claimed in claim 9 is characterized in that,
Described competition inserts submodule, is used for disposing on the up-link carrier of RACH according to time sequencing at described other initiating access at random based on competition successively; Perhaps dispose the access of initiating simultaneously on the up-link carrier of RACH based on competition at random at described other.
11. subscriber equipment as claimed in claim 8 is characterized in that, described MAC layer function module comprises:
Non-competing access submodule is used to accept the triggering that base station equipment is initiated by one or more descending carriers, initiates non-competing access at random on a plurality of up-link carriers;
Report submodule, being used for reaching the largest random that allows on each self-corresponding up-link carrier at the number of times that inserts at random based on non-competing that described non-competing access submodule is initiated inserts number of times and describedly yet during success, reports at random access failure indication to described rrc layer functional module based on non-competing access at random.
12. subscriber equipment as claimed in claim 11 is characterized in that,
Described non-competing access submodule is used for initiating non-competing access at random successively according to time sequencing on a plurality of up-link carriers; Perhaps on a plurality of up-link carriers, initiate non-competing access at random simultaneously.
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