CN101998496A - Method and system for processing problem of wireless link in partial carrier wave - Google Patents
Method and system for processing problem of wireless link in partial carrier wave Download PDFInfo
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- CN101998496A CN101998496A CN200910162690XA CN200910162690A CN101998496A CN 101998496 A CN101998496 A CN 101998496A CN 200910162690X A CN200910162690X A CN 200910162690XA CN 200910162690 A CN200910162690 A CN 200910162690A CN 101998496 A CN101998496 A CN 101998496A
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Abstract
The invention discloses a method for processing a problem of a wireless link in partial carrier wave. The method comprises the following steps: user equipment (UE) detects the problem of the wireless link in partial carrier wave; the UE suspends, or releases, or resets, or deletes, or maintains the configuration of the partial carrier wave and attempts to restore the partial carrier wave. The invention also discloses a system for processing the problem of a wireless link in partial carrier wave, which comprises a detection unit, as well as a suspension unit, or a release unit, or a reset unit, or a delete unit or a maintain and restore unit. By adopting the method and the system, particular measures for processing the problem by the UE when the problem of the wireless link of the partial carrier wave occurs in carrier aggregation of a multicarrier system can be realized.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to processing method and the system that there be the Radio Link problem in carrier aggregation middle part sub-carrier.
Background technology
Along with the development of network architecture flattening and the appearance of the removable access way of multiple high-speed wideband, make the wireless communication system of evolution that higher transmission rate, shorter propagation delay time can be provided, can also support 3G (Third Generation) Moblie partnership project (3GPP, The 3rd Generation Partnership Project) mobility between the inner connecting system, and the mobility between 3GPP connecting system and the non-3GPP connecting system or the like, impel mobile communication system to propose framework theory of future generation.
Fig. 1 is the next generation network configuration diagram of long evolving system/System Architecture Evolution, as shown in Figure 1, Long Term Evolution (LTE, Long Term Evolution) system/System Architecture Evolution (SAE, SystemArchitecture Evolution) framework of future generation comprises the base station (eNB by evolution, eNodeB) Radio Access Network (E-RAN of composition evolution, Evolved Radio Access Network) and the packet core network of evolution, wherein, the packet core network of evolution is by Mobility Management Entity (MME, MobilityManagement Entity) and service gateway entity (S-GW, Serving Gateway) form.Interface between eNB and the core network is the S1 interface.Wherein, the interface between eNB and the MME is expressed as S1-MME, is used to finish the chain of command function of mobile management and S1 interface; Interface between eNB and the S-GW is expressed as S1-U, is used to finish the function such as route, transmission of user data.Link to each other by X2 interface between the eNB, X2 interface be used to finish user terminal under state of activation the mobile management function and the information interaction between the eNB of equity.
In the LTE system, for mobile communication system has stronger robustness, as user terminal (UE, when User Equipment) detecting Radio Link Failure, handoff failure and maybe can not satisfy the reasons such as requirement that wireless connections reshuffle, introduced the thought that wireless connections are rebuild, this moment, UE need carry out the process of cell selecting so that select proper cell, at this moment, the selected suitable cell of UE is called new sub-district, it is Target cell, new sub-district can be that the cell-of-origin is the connect sub-district at place of former UE, also can be different sub-districts.
Fig. 2 is the flow chart that wireless connections are rebuild in the long evolving system, and as shown in Figure 2, wireless connections are rebuild and be may further comprise the steps:
Step 101:UE sends wireless connections in new sub-district to the base station and rebuilds request.
Here, in this signaling, comprise UE at the Radio Network Temporary Identifier of cell-of-origin, cell-of-origin identification information, UE in security configuration information of cell-of-origin etc.
Step 102: the base station sends wireless connections to this UE and rebuilds signaling for after this UE distributes required Radio Resource.
Here, wireless connections are rebuild and to be comprised in the signaling that UE is in the wireless resource configuration of Target cell with about the information of security configuration.
After step 103:UE receives that signaling is rebuild in the wireless connections of sending the base station, extract wherein Target cell parameter and configuration, send wireless connections to the base station and rebuild the signaling of finishing.
Here, after wireless connections were rebuild and finished, UE had rebulid in new sub-district and has been used for the dedicated channel that signaling is transmitted, and UE need reshuffle the dedicated channel that is used for data passes so that carry out transfer of data then.
In LTE Release 8, the reason that triggers Radio Link Failure comprises that UE detects the overtime or UE of T310 and receives medium access control (MAC, Medium Access Control) layer inserts the indication of problem or UE receives that Radio Link control (RLC, Radio Link Control) layer reaches the indication of maximum retransmission at random.Particularly, the overtime finger of so-called T310: when the specific reference signal in sub-district that is consecutively detected N310 descending carrier as UE is lower than Qout, UE then starts timer T310, surpass Qin 311 times thereby do not stop T310 if UE detects the specific reference signal N continuous in sub-district, can cause the overtime and triggering Radio Link Failure of T310.
In order to satisfy people to the demand of high bandwidth more, the LTE of evolution (LTE Advance) proposes the purpose of the bigger bandwidth of method realization of employing carrier aggregation, this moment, a sub-district was made up of a plurality of continuous or discrete carrier waves, here, each carrier wave is called component carrier, and each carrier wave can provide the service of multicarrier simultaneously for UE.Component carrier can adopt the carrier wave of compatible LTE system, and this carrier wave is called the backward compatibility carrier wave; Component carrier also can adopt the carrier wave of incompatible existing LTE system, and this carrier wave is called non-backward compatible carrier waves, and this carrier wave can only be that Release 10 versions and above UE use; Component carrier can also be the expansion carrier wave, and this carrier wave can not use separately, needs to use together with other carrier waves that can independently use.Component carrier can become the specific anchor carrier wave in sub-district, also can become the specific anchor carrier wave of user.If only at one-component carrier wave transmitting system message, beep-page message etc., this component carrier becomes the specific anchor carrier wave in sub-district; If a plurality of component carriers all can transmitting system message, beep-page message etc., just there is not the specific anchor carrier wave in sub-district of typical meaning this moment, for the subscriber equipment of connected state, certain component carrier of its work can become the specific anchor carrier wave of user.For the subscriber equipment of connected state, a plurality of component carriers of its work are called activation carrier wave collection or scheduling carrier wave collection or service carrier wave collection, can be divided into the up-link carrier collection of UE and the descending carrier collection of UE according to up-downgoing.Descending carrier at UE is concentrated, can also be divided into Physical Downlink Control Channel (PDCCH, Physical downlink control channel) carrier wave collection and Physical Downlink Shared Channel (PDSCH, Physical downlink shared channel) carrier wave collection, some carrier wave may only provide PDSCH.
Whether carrier aggregation is continuous on frequency domain by each component carrier, can divide continuous carrier aggregation and discrete carrier aggregation, and so-called continuous carrier aggregation is meant that each component carrier is interconnective on frequency domain; Discontinuous carrier aggregation then refers to it is unconnected between each component carrier on frequency domain.Carrier aggregation by each component carrier whether in identical frequency band, can be divided into single carrier aggregation and the carrier aggregation of striding frequency band, so-called single carrier aggregation is meant: all in same frequency band, single carrier aggregation can be that continuous carrier aggregation also can be discontinuous carrier aggregation to all component carriers of participation carrier aggregation; The carrier aggregation that what is called is striden frequency band is meant: the component carrier that participates in carrier aggregation can be derived from different frequency bands.
In carrier aggregation, because UE can use a plurality of up-link carriers and descending carrier simultaneously, the Radio Link problem appears in some carrier waves of concentrating when the carrier wave of UE, when, MAC layer overtime such as T310 inserts problem or rlc layer at random and reaches maximum retransmission etc., with regard to triggering the reconstruction that Radio Link Failure causes whole wireless connections is irrational, because if still have other carrier waves normally to use, UE can realize the transmission of chain of command and user face data fully by those still normal carrier waves that uses.But, prior protocols is applicable to single-carrier system, the scene that only relates to a pair of up-downgoing carrier wave for the processing of Radio Link problem, and in case detect the Radio Link problem, UE just triggers Radio Link Failure and rebuilds to implement wireless connections, when part carrier wave wireless link problem in the carrier aggregation of multicarrier system, occurring UE this how to handle, effective solution is not proposed at present as yet.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of part carrier wave to have the processing method and the system of Radio Link problem, this concrete measure how to handle of UE when having realized part carrier wave wireless link problem occurring in the carrier aggregation of multicarrier system.
For achieving the above object, technical scheme of the present invention is achieved in that
There is the processing method of Radio Link problem in a kind of part carrier wave, and this method comprises: subscriber equipment detects the part carrier wave and the Radio Link problem occurs; Described subscriber equipment hangs the configuration of described part carrier wave or discharges the configuration of described part carrier wave or reset the configuration of described part carrier wave or delete the configuration of described part carrier wave or keep the configuration of described part carrier wave and attempt to recover described part carrier wave.
Wherein, described subscriber equipment hangs the configuration of described part carrier wave, specifically comprises: described subscriber equipment hangs the automatic request retransmission HARQ entity of mixing of described part carrier wave correspondence and/or the media access control MAC that hangs the semi-persistent scheduling configuration of described part carrier wave correspondence and/or keep described part carrier wave correspondence mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
Wherein, described subscriber equipment discharges the configuration of described part carrier wave, specifically comprises: described subscriber equipment discharges the HARQ entity of described part carrier wave correspondence and/or the MAC that discharges the semi-persistent scheduling configuration of described part carrier wave correspondence and/or discharge described part carrier wave correspondence mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
Wherein, described subscriber equipment is reseted the configuration of described part carrier wave, specifically comprises: described subscriber equipment is reseted the MAC layer of described part carrier wave correspondence and/or described subscriber equipment and the configuration of described part carrier wave corresponding physical channel application acquiescence and/or described subscriber equipment is used the configuration of acquiescence and/or described subscriber equipment to the semi-persistent scheduling of described part carrier wave correspondence the MAC of described part carrier wave correspondence is mainly disposed the configuration of using acquiescence and/or the public radio-resource-configuration of the described part carrier wave of described subscriber equipment reservation/release correspondence.
Wherein, described subscriber equipment is deleted the configuration of described part carrier wave, specifically comprises: described subscriber equipment is deleted described part carrier wave and/or is discharged the HARQ entity of described part carrier wave and/or semi-persistent scheduling configuration and/or MAC mainly disposes and/or physical channel configuration or public radio-resource-configuration.
Wherein, described subscriber equipment is deleted described part carrier wave, specifically comprises: the descending carrier collection of described subscriber equipment is deleted the up-link carrier collection of described part carrier wave and/or described subscriber equipment and is deleted described part carrier wave.
Wherein, described subscriber equipment keeps the configuration of described part carrier wave and attempts recovering described part carrier wave, and specifically comprise: described subscriber equipment keeps the configuration of described part carrier wave; When described subscriber equipment detects the specific reference signal in the sub-district of one or more descending carriers in the described part carrier wave when the duration surpasses predetermined threshold, described subscriber equipment continues to use one or more descending carriers in the described part carrier wave or informing network side to continue to use one or more descending carriers in the described part carrier wave.
Wherein, described Radio Link problem comprises: T310 is overtime, the MAC layer inserts problem at random, wireless chain control layer reaches at least a in the maximum retransmission.
Wherein, described subscriber equipment detects described part carrier wave and occurs after the Radio Link problem, and this method also comprises: the relevant information of the described part carrier wave of described Radio Link problem appears in the described network side of described notification of user equipment.
Wherein, described subscriber equipment detects described part carrier wave and occurs after the Radio Link problem, and this method also comprises: described subscriber equipment continues to keep communicating by letter with described network side.
There is the treatment system of Radio Link problem in a kind of part carrier wave, and this system comprises: detecting unit; This method also comprises: suspension unit or releasing unit or reset the unit or delete cells or reservation and recovery unit; Wherein,
Detecting unit is used for subscriber equipment and detects the Radio Link problem that the part carrier wave is occurred;
Suspension unit is used for the configuration that described subscriber equipment hangs described part carrier wave;
Releasing unit is used for the configuration that described subscriber equipment discharges described part carrier wave;
Reset the unit, be used for the configuration that described subscriber equipment is reseted described part carrier wave;
Delete cells is used for the configuration that described subscriber equipment is deleted described part carrier wave;
Keep and recovery unit, be used for described subscriber equipment and keep the configuration of described part carrier wave and attempt recovering described part carrier wave.
Wherein, described suspension unit is further used for that described subscriber equipment hangs the HARQ entity of described part carrier wave correspondence and/or the MAC that hangs the semi-persistent scheduling configuration of described part carrier wave correspondence and/or keep described part carrier wave correspondence mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
Wherein, described releasing unit is further used for that described subscriber equipment discharges the HARQ entity of described part carrier wave correspondence and/or the MAC that discharges the semi-persistent scheduling configuration of described part carrier wave correspondence and/or discharge described part carrier wave correspondence mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
Wherein, being further used for described subscriber equipment resets the MAC layer of described part carrier wave correspondence and/or described subscriber equipment and the configuration of described part carrier wave corresponding physical channel application acquiescence and/or described subscriber equipment is used the configuration of acquiescence and/or described subscriber equipment to the semi-persistent scheduling of described part carrier wave correspondence the MAC of described part carrier wave correspondence is mainly disposed the configuration of using acquiescence and/or the public radio-resource-configuration of the described part carrier wave of described subscriber equipment reservation/release correspondence.
Wherein, described delete cells is further used for described subscriber equipment and deletes described part carrier wave and/or discharge the HARQ entity of described part carrier wave and/or semi-persistent scheduling configuration and/or MAC mainly disposes and/or physical channel configuration or public radio-resource-configuration.
Wherein, described delete cells also comprises: the carrier wave removing module, the descending carrier collection that is used for described subscriber equipment is deleted the up-link carrier collection of described part carrier wave and/or described subscriber equipment and is deleted described part carrier wave.
Wherein, described reservation and recovery unit are further used for the configuration that described subscriber equipment keeps described part carrier wave; When described subscriber equipment detects the specific reference signal in the sub-district of one or more descending carriers in the described part carrier wave when the duration surpasses predetermined threshold, described subscriber equipment continues to use one or more descending carriers in the described part carrier wave or informing network side to continue to use one or more descending carriers in the described part carrier wave.
Wherein, this system also comprises: notification unit is used for the relevant information that the described part carrier wave of described Radio Link problem appears in the described network side of described notification of user equipment.
Wherein, this system also comprises: the communication holding unit is used for described subscriber equipment and continues to keep communicating by letter with described network side.
User terminal of the present invention detects the part carrier wave and the Radio Link problem occurs; Described subscriber equipment hangs the configuration of described part carrier wave or discharges the configuration of described part carrier wave or reset the configuration of described part carrier wave or delete the configuration of described part carrier wave or keep the configuration of described part carrier wave and attempt to recover described part carrier wave.
Adopt the present invention, be different from prior art, detect after the Radio Link problem, user terminal need not to trigger at once Radio Link Failure and rebuilds to implement wireless connections, but user terminal can be taked to hang, discharge, resets, deletes or a series of concrete treatment measures such as reservation and recovery, this scheme how to handle of UE when having realized part carrier wave wireless link problem occurring in the carrier aggregation of multicarrier system.
Description of drawings
Fig. 1 is the next generation network configuration diagram of long evolving system/System Architecture Evolution;
Fig. 2 realizes the schematic flow sheet that wireless connections are rebuild in the long evolving system;
Fig. 3 is the realization flow schematic diagram of the inventive method.
Embodiment
Basic thought of the present invention is: detect after the Radio Link problem, user terminal need not to trigger at once Radio Link Failure and rebuilds to implement wireless connections, but can take to hang, discharge, reset, delete or a series of concrete treatment measures such as reservation and recovery.
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme.
Here it is to be noted: user terminal does not herein refer in particular to UE, and UE is the specific appellation in the LTE system, and the UE in the LTE system is represented on the ground that relates to UE herein just now.
As shown in Figure 3, there is the processing method of Radio Link problem in a kind of part carrier wave, and this method may further comprise the steps:
Here, the Radio Link problem comprises: T310 is overtime, the MAC layer inserts problem at random, wireless chain control layer reaches at least a in the maximum retransmission.
The configuration of step 202, subscriber equipment suspended portion carrier wave or the configuration of release portion carrier wave or reset the configuration of part carrier wave or the configuration of the configuration of deletion carrier wave or reserve part carrier wave and attempt the recovered part carrier wave.
Below the user terminal that relates in the step 202 is taked suspension, discharge, reset, delete or a series of concrete treatment measures such as reservation and recovery are set forth.
The configuration of subscriber equipment suspended portion carrier wave, its concrete processing procedure comprises: the MAC of the automatic request retransmission of mixing (HARQ) entity of subscriber equipment suspended portion carrier wave correspondence and/or configuration of the semi-persistent scheduling of suspended portion carrier wave correspondence and/or reserve part carrier wave correspondence mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
The configuration of subscriber equipment release portion carrier wave, its concrete processing procedure comprises: the MAC of the HARQ entity of subscriber equipment release portion carrier wave correspondence and/or configuration of the semi-persistent scheduling of release portion carrier wave correspondence and/or release portion carrier wave correspondence mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
Subscriber equipment is reseted the configuration of part carrier wave, and its concrete processing procedure comprises: subscriber equipment is reseted the MAC layer of part carrier wave correspondence and/or subscriber equipment and the configuration of part carrier wave corresponding physical channel application acquiescence and/or subscriber equipment is used the configuration of acquiescence and/or subscriber equipment to the semi-persistent scheduling of part carrier wave correspondence the MAC of part carrier wave correspondence is mainly disposed the configuration of using acquiescence and/or the public radio-resource-configuration of subscriber equipment reservation/release portion carrier wave correspondence.
Subscriber equipment is deleted the configuration of described part carrier wave, and its concrete processing procedure comprises: the HARQ entity of subscriber equipment deletion carrier wave and/or release portion carrier wave and/or semi-persistent scheduling dispose and/or MAC mainly disposes and/or physical channel configuration or public radio-resource-configuration.Wherein, with regard to subscriber equipment deletion carrier wave, its concrete processing procedure comprises: the descending carrier collection of subscriber equipment is deleted the up-link carrier collection deletion carrier wave of described part carrier wave and/or subscriber equipment.
The configuration of subscriber equipment reserve part carrier wave is also attempted the recovered part carrier wave, and its concrete processing procedure comprises: the configuration of subscriber equipment reserve part carrier wave; When subscriber equipment detects the specific reference signal in the sub-district of one or more descending carriers in the part carrier wave when the duration surpasses predetermined threshold, subscriber equipment continues to use one or more descending carriers in the part carrier wave or informing network side to continue to use one or more descending carriers in the part carrier wave.
Here, subscriber equipment detects the part carrier wave and occurs after the Radio Link problem, and this method also comprises: the relevant information of the part carrier wave of Radio Link problem appears in the notification of user equipment network side.
Here, subscriber equipment detects described part carrier wave and occurs after the Radio Link problem, and this method also comprises: subscriber equipment continues to keep communicating by letter with network side.
There is the treatment system of Radio Link problem in a kind of part carrier wave, this system comprises: detecting unit, in addition, this method also comprises: suspension unit or releasing unit reset the unit or delete cells or reservation and recovery unit in any one unit.Wherein, detecting unit is used for subscriber equipment and detects the Radio Link problem that the part carrier wave is occurred.Suspension unit is used for the configuration of subscriber equipment suspended portion carrier wave.Releasing unit is used for the configuration of subscriber equipment release portion carrier wave.Reset the unit, be used for the configuration that subscriber equipment is reseted the part carrier wave.Delete cells is used for the configuration of subscriber equipment deletion carrier wave.Keep and recovery unit, be used for the configuration of subscriber equipment reserve part carrier wave and attempt the recovered part carrier wave.
Below, UE detected part carrier wave wireless link problem after, the suspension of being taked, discharge, reset, delete or during a series of concrete treatment measures such as reservation and recovery, corresponding each unit that adopts is specifically addressed.
Suspension unit is further used for the HARQ entity of family equipment suspended portion carrier wave correspondence and/or the semi-persistent scheduling configuration of suspended portion carrier wave correspondence and/or the MAC of reserve part carrier wave correspondence and mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
Releasing unit is further used for the HARQ entity of subscriber equipment release portion carrier wave correspondence and/or the semi-persistent scheduling configuration of release portion carrier wave correspondence and/or the MAC of release portion carrier wave correspondence and mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
Reset the unit, be further used for subscriber equipment and reset the MAC layer of part carrier wave correspondence and/or subscriber equipment and the configuration of part carrier wave corresponding physical channel application acquiescence and/or subscriber equipment are used the configuration of acquiescence and/or subscriber equipment to the semi-persistent scheduling of part carrier wave correspondence the MAC of part carrier wave correspondence is mainly disposed the configuration of using acquiescence and/or the public radio-resource-configuration of subscriber equipment reservation/release portion carrier wave correspondence.
Delete cells is further used for the HARQ entity and/or the semi-persistent scheduling configuration of subscriber equipment deletion carrier wave and/or release portion carrier wave and/or MAC mainly disposes and/or physical channel configuration or public radio-resource-configuration.Here, delete cells also comprises: the carrier wave removing module is used for the descending carrier collection deletion carrier wave of subscriber equipment and/or the up-link carrier collection deletion carrier wave of subscriber equipment.
Keep and recovery unit, be further used for the configuration of subscriber equipment reserve part carrier wave; When subscriber equipment detects the specific reference signal in the sub-district of one or more descending carriers in the part carrier wave when the duration surpasses predetermined threshold, subscriber equipment continues to use one or more descending carriers in the part carrier wave or informing network side to continue to use one or more descending carriers in the part carrier wave.
Here, this system also comprises: notification unit is used for the relevant information that the part carrier wave of Radio Link problem appears in the notification of user equipment network side.
Here, this system also comprises: the communication holding unit is used for subscriber equipment and continues to keep communicating by letter with network side.
Below to the present invention's elaboration of giving an example.Below in each example, the frequency with each component carrier in this specification identifies this component carrier.
Example one:
In LTE Advance system, adopt the network architecture as shown in Figure 1.1 jurisdiction district 1, base station is the sub-district of carrier aggregation, and UE is in idle condition in sub-district 1.Here, base station 1 promptly: any one eNB among general reference Fig. 1.The base station 1 that below relates to also is the meaning here, below does not give unnecessary details.The component carrier that the sub-district of this carrier aggregation comprises is at frequency band 1, and promptly among the Band 1, descending have 3 continuous component carriers, that is: CC (f1), CC (f2), a CC (f3); Up also is 3 continuous carrier waves, that is: CC (f4), CC (f5), CC (f6).Three equal transmitting system message of descending carrier, beep-page message.
Sometime, UE is at component carrier, that is: up UL CC (f4), and descending DL CC (f1) initiates to insert at random, successfully inserts the sub-district of this carrier aggregation.Because UE supports multicarrier and service traffics very big, component carrier has been distributed for UE again in the base station, that is: UL CC (f5), DL CC (f2).As seen, this moment, UE used two component carriers simultaneously, and the up-link carrier collection of UE and the descending carrier collection of UE are two.Two carrier waves that the descending carrier of UE is concentrated all send PDCCH, UE need receive the PDCCH of these two carrier waves always and parse one's own PDCCH, PDCCH is that the RNTI according to UE parses, here, so-called RNTI refers to: wireless network is identified sign temporarily, and as the sign of UE, different RNTI identifies UE in different range, the RNTI that relates to later also is the implication here, below does not do and gives unnecessary details.UE sends Physical Uplink Control Channel (PUCCH, Physical uplink control channel) and Physical Uplink Shared Channel (PUSCH, Physical uplinkshared channel) at two up carrier waves simultaneously.The a certain moment, it is overtime that UE detects the T310 of DL CC (f1), such as, UE detects 310 out-of-sync of N continuous, that is: the specific reference signal in sub-district is lower than the indication of Qout, after starting T310, T310 is overtime, being provided with of N310 and T310 can be obtained by system message, also can obtain by dedicated signaling, UE does not trigger Radio Link Failure, but continues to keep being connected with network by UL CC (f5) and DL CC (f2), and UE can be by the problem of space interface signaling informing network DL CC (f1) Radio Link, at this moment, the part carrier wave that occurs the Radio Link problem in the system is: DL CC (f1).UE detect the T310 of DL CC (f1) overtime after, UE hangs component carrier, that is: UL CC (f4), the HARQ entity that DL CC (f1) is corresponding, semi-persistent scheduling configuration or reservation component carrier, that is: UL CC (f4), the MAC that DL CC (f1) is corresponding mainly disposes, physical channel disposes and public radio-resource-configuration, and here, radio-resource-configuration comprises the common configuration that inserts at random; The common configuration of PDSCH, PUCCH, PDSCH; The configuration of physics HARQ designator (PHICH); Pilot reference signal (SRS, configuration soundingRS) etc.Network can be according to the measurement report of UE then, whether delete component carrier UL CC (f4) such as UE by the carrier wave reporting measurement reports decision that does not go wrong, DL CC (f1) or reshuffle this component carrier.
Need to prove, the MAC that UE keeps carrier wave correspondence that the Radio Link problem occurs in this example mainly disposes, because MAC mainly disposes only relevant with this single carrier in single-carrier system, in carrier aggregation, the MAC of UE mainly disposes the content that comprises two aspects, and a part is relevant with carrier wave; A part is relevant with UE.Content relevant such as the configuration of up shared channel (ul-SCH-Config) etc. with carrier wave, content relevant such as internal storage state report etc. with UE.UE only relates to the relevant parameter of carrier wave to the operation that the MAC of part carrier wave that the Radio Link problem occurs mainly disposes, and the parameter relevant to UE all keeps.
Spent a period of time, the measurement report of UE on network transmission frequency f1, report shows that the signal of DL CC (f1) surpasses predetermined threshold, network disposes component carrier once more, that is: UL CC (f4), DL CC (f1) uses to UE, and network can be reshuffled corresponding M AC configuration and physical channel disposes.Because UE has kept component carrier before, that is: UL CC (f4), the MAC configuration that DL CC (f1) is corresponding, physical channel configuration and public radio-resource-configuration, network is being reshuffled component carrier, that is: UL CC (f4), DL CC can take the delta signaling when (f1), transmits with the signaling that saving is eated dishes without rice or wine.
In this example, UE is after the T310 that detects DL CC (f1) is overtime, and UE hangs component carrier, that is: UL CC (f4), the HARQ entity that DL CC (f1) is corresponding, semi-persistent scheduling configuration.UE also can keep corresponding configuration such as HARQ entity, semi-persistent scheduling configuration etc., before not triggering Radio Link Failure, or do not receive before the signaling of the corresponding up-downgoing carrier wave of deletion, UE attempts recovering this up-downgoing carrier wave always, UE detects the specific reference signal in sub-district of corresponding descending carrier, if be consecutively detected in-sync N311 time, that is: the specific reference signal in the sub-district of this descending carrier surpasses Qin, can think and surpass predetermined threshold in the duration, then UE continues to use this up-downgoing carrier wave, may need this moment just can reuse this up-downgoing carrier wave by inserting at random, or informing network can continue to use this up-downgoing carrier wave.
By said method, subscriber equipment can not interrupt existing wireless connections when the Radio Link problem appears in the part carrier wave, continues to keep communication, has strengthened the antijamming capability of network.
Example two:
In LTE Advance system, adopt the network architecture as shown in Figure 1.1 jurisdiction district 1, base station is the sub-district of carrier aggregation, and UE is in idle condition in sub-district 1.The component carrier that the sub-district of this carrier aggregation comprises is at frequency band 1, and promptly among the Band 1, descending have 3 continuous component carriers, that is: CC (f1), CC (f2), a CC (f3); Up also is 3 continuous carrier waves, that is: CC (f4), CC (f5), CC (f6).Three equal transmitting system message of descending carrier, beep-page message.
Sometime, UE is at component carrier, that is: up UL CC (f4), and descending DL CC (f1) initiates to insert at random, successfully inserts the sub-district of this carrier aggregation.Because UE supports multicarrier and service traffics very big, component carrier has been distributed for UE again in the base station, that is: UL CC (f5), DL CC (f2)).As seen, this moment, UE used two component carriers simultaneously, and the up-link carrier collection of UE and the descending carrier collection of UE are two.Two carrier waves that the descending carrier of UE is concentrated all send PDCCH, and UE need receive the PDCCH of these two carrier waves always and parse one's own PDCCH, and PDCCH is that the RNTI according to UE parses.UE sends PUCCH and PUSCH at two up carrier waves simultaneously.The a certain moment, it is overtime that UE detects the T310 of DL CC (f1), such as, UE detects 310 out-of-sync of N continuous, that is: the specific reference signal in sub-district is lower than the indication of Qout, after starting T310, T310 is overtime, being provided with of N310 and T310 can be obtained by system message, also can be obtained by dedicated signaling, UE does not trigger Radio Link Failure, but continue to keep being connected with network by UL CC (f5) and DL CC (f2), UE can send the problem of DL CC (f1) Radio Link by space interface signaling to network.At this moment, the part carrier wave that occurs the Radio Link problem in the system is: DL CC (f1).UE detect the T310 of DL CC (f1) overtime after, UE discharges component carrier (UL CC (f4), DL CC (f1)) Dui Ying HARQ entity, semi-persistent scheduling configuration or release component carrier, that is: UL CC (f4), the MAC that DL CC (f1) is corresponding mainly disposes, physical channel configuration and public radio-resource-configuration.UE detect the T310 of DL CC (f1) overtime after, can be at the corresponding descending carrier of the descending carrier collection deletion of UE with at the corresponding up-link carrier of up-link carrier collection deletion of UE; The signaling that also can wait for network side is deleted corresponding carrier wave again.
Need to prove that asymmetric up-downgoing carrier wave can be used in the sub-district of carrier aggregation, such as descending 5 carrier waves, up 3 carrier waves, UE also can use asymmetric up-downgoing carrier wave.When the up-downgoing carrier wave of UE use was asymmetric, overtime if UE detects the T310 of certain descending carrier, this descending carrier did not have corresponding up-link carrier, and UE only deletes corresponding descending carrier at the descending carrier collection of UE.
By said method, subscriber equipment can not interrupt existing wireless connections when the Radio Link problem appears in the part carrier wave, continues to keep communication, has strengthened the antijamming capability of network.
In this example, UE passes through the still Radio Link problem of available component carrier informing network part carrier wave, because also there is the entity of HARQ entity or detection wireless link performance in base station side, if there is the Radio Link problem in UE on certain component carrier, through after a while, the base station can detect, so UE can not notify the Radio Link problem of network portion carrier wave.
Example three:
In LTE Advance system, adopt the network architecture as shown in Figure 1.1 jurisdiction district 1, base station is the sub-district of carrier aggregation, and UE is in idle condition in sub-district 1.The component carrier that the sub-district of this carrier aggregation comprises is at frequency band 1, and promptly among the Band 1, descending have 3 continuous component carriers, that is: CC (f1), CC (f2), a CC (f3); Up also is 3 continuous carrier waves, that is: CC (f4), CC (f5), CC (f6).Three equal transmitting system message of descending carrier, beep-page message.
Sometime, UE is at component carrier, that is: UL CC (f4), and DL CC (f1) initiates to insert at random, successfully inserts the sub-district of this carrier aggregation.Because UE supports multicarrier and service traffics very big, component carrier has been distributed for UE again in the base station, that is: UL CC (f5) and CC (f6), and DL CC (f2) and CC (f3), promptly the up-link carrier collection of UE and the descending carrier collection of UE are three at this moment.Spent a period of time, UE is because certain reason, need initiate to insert at random when sending upstream data such as needs, UE at first is chosen in ULCC (f4) and DL CC (f1) initiates to insert at random, yet insert not success at random, UE receives the indication of MAC layer access problem at random, UE does not trigger Radio Link Failure, but initiate once more to insert at random at UL CC (f5) and DL CC (f2), the success of access at random that current UE initiates, UE can continue to keep communicating by letter with network, UE can be by the at random access problem of space interface signaling informing network at UL CC (f4) and DL CC (f1), at this moment, the part carrier wave that occurs the Radio Link problem in the system is: UL CC (f4) and DL CC (f1).UE is after detecting the indication of UL CC (f4) and DL CC (f1) MAC layer access problem at random, UL CC (f4) and DL CC (f1) corresponding M AC layer have been reseted, UE uses the configuration of acquiescence, mainly disposes the configuration of using acquiescence to the configuration of corresponding semi-persistent scheduling application acquiescence, to corresponding M AC corresponding physical channel, UE keeps or release component carrier, that is: the public radio-resource-configuration of UL CC (f4) and DL CC (f1).Need to prove,, just do not need it is used the configuration of acquiescence if UE does not have semi-static configuration at UL CC (f4) and DL CC (f1).
In this example, UE only reports the MAC layer of a pair of up-downgoing carrier wave to insert problem at random, in real process, UE can use many to up-downgoing carrier wave or asymmetric carrier wave, UE detects one or more pairs of up-downgoing carrier waves, and to exist the MAC layer to insert the T310 of problem or a plurality of descending carriers at random overtime, but when not triggering Radio Link Failure, UE can once notify many to up-downgoing carrier wave or many Radio Link problems to descending carrier by space interface signaling to network.Because also there is the entity of HARQ entity or detection wireless link performance in base station side, if there is the Radio Link problem in UE on one or several component carrier, through after a while, the base station can detect, so UE can not notify the Radio Link problem of network portion carrier wave.
By said method, subscriber equipment can not interrupt existing wireless connections when the Radio Link problem appears in the part carrier wave, continues to keep communication, has strengthened the antijamming capability of network.
Example four:
In LTE Advance system, adopt the network architecture as shown in Figure 1.1 jurisdiction district 1, base station is the sub-district of carrier aggregation, and UE is in idle condition in sub-district 1.The component carrier that the sub-district of this carrier aggregation comprises is at frequency band 1, and promptly among the Band 1, descending have 3 continuous component carriers, that is: CC (f1), CC (f2), a CC (f3); Up also is 3 continuous carrier waves, that is: CC (f4), CC (f5), CC (f6).Three equal transmitting system message of descending carrier, beep-page message.
Sometime, UE is at component carrier, that is: UL CC (f4), and DL CC (f1) initiates to insert at random, successfully inserts the sub-district of this carrier aggregation.Because UE supports multicarrier and service traffics very big, component carrier has been distributed for UE again in the base station, that is: UL CC (f5) and CC (f6), and DL CC (f2) and CC (f3), promptly the up-link carrier collection of UE and the descending carrier collection of UE are three at this moment.The professional E-RAB of certain of UE is only at component carrier, that is: UL CC (f4), DL CC (f1) goes up transmission, as the semi-persistent scheduling configuration of speech business VOIP configuration only at component carrier, that is: UL CC (f4), DL CC (f1) goes up transmission.Other business of UE can be used other component carrier.Sometime, UE receives at component carrier, that is: UL CC (f4), DL CC (f1) goes up the indication that the professional rlc layer that transmits reaches maximum retransmission, UE does not trigger Radio Link Failure, but report component carrier by other component carrier to network, that is: UL CC (f4), the Radio Link problem of DL CC (f1).At this moment, the part carrier wave that occurs the Radio Link problem in the system is: UL CC (f4) and DL CC (f1).After UE receives that rlc layer reaches the indication of maximum retransmission, the corresponding component carrier of UE deletion, that is: UE is at the up-link carrier collection deletion UL CC (f4) of UE, at the descending carrier collection deletion DL CC (f1) of UE; Other corresponding physical layers, MAC mainly dispose also and discharge.
Network is received component carrier, that is: UL CC (f4) is after the indication of the Radio Link problem of DL CC (f1), for the up-link carrier collection of other available UE of UE and the descending carrier collection of UE distribute adequate resources so that this business can continue to use.
Need to prove that asymmetric up-downgoing carrier wave can be used in the sub-district of carrier aggregation, such as descending 5 carrier waves, up 3 carrier waves, UE also can use asymmetric up-downgoing carrier wave.When the up-downgoing carrier wave of UE use is asymmetric, if UE detects the MAC layer that the T310 of certain descending carrier rlc layer overtime or certain up-link carrier reaches maximum retransmission or certain up-link carrier and inserts problem at random, UE is only at the corresponding descending carrier of the descending carrier collection deletion of UE or only at the corresponding up-link carrier of up-link carrier collection deletion of UE.
UE concentrates deletion the carrier wave of Radio Link problem to occur at carrier wave in this example, UE also can adopt the configuration that keeps this carrier wave, up and/or the descending carrier of deexcitation correspondence just, that is: UE can be not in the up-link carrier transmission data of correspondence or do not detect the PDCCH of corresponding descending carrier.Network signal such as have only, if network activates this upstream or downstream carrier wave once more, UE just uses this up-link carrier or detects the PDCCH of this descending carrier.
By said method, subscriber equipment can not interrupt existing wireless connections when the Radio Link problem appears in the part carrier wave, continues to keep communication, has strengthened the antijamming capability of network.
Here, the wireless connections that more than relate to are reshuffled with RRC connection Reconfiguration and are represented; Wireless connections are rebuild and are represented with RRC connection reestablishment; The wireless connections request of rebuilding is represented with RRC connection re-establishment request; Radio Network Temporary Identifier is represented with Cell RadioNetwork Temporary Identifier, is abbreviated as C-RNTI; The cell-of-origin sign is represented with Physical CellIdentity; Security configuration information is represented with ShortMAC-I; Wireless resource configuration is represented with RadioResource Config Dedicated; Information about security configuration is represented with NextHopChainingCount; Wireless connections are rebuild to finish with RRC connection reestablishment complete and are represented; The specific reference signal in sub-district is represented with Cell-specific reference signals; Component carrier is represented with ComponentCarrier; The backward compatibility carrier wave is represented with Backwards compatible carrier; Non-backward compatible carrier waves is represented with Non-backwards compatible carrier; The expansion carrier wave is represented with Extension carrier; The specific anchor carrier wave in sub-district is represented with cell specific anchor carrier; The specific anchor carrier wave of user is represented with UEspecific anchor carrier; Activating the carrier wave collection represents with active carriers; The up-link carrier collection of UE is represented with UE UL Component Carrier Set; The descending carrier collection of UE is represented with UE DL ComponentCarrier Set; Single band is represented with single band; Striding frequency band represents with over multiple frequencybands; Suspension is represented with Suspend; Semi-persistent scheduling is configured to semi-persistent schedulingconfiguration and represents; MAC mainly is configured to MAC main configuration and represents; Physical channel is configured to physical channel configuration and represents; Radio-resource-configuration is represented with RadioResourceConfigCommon; Recovery is represented with recovery; Reset with reset and represent; The apply the default physical channelconfiguration that is configured to that corresponding physical channel is used acquiescence represents; The apply the defaultsemi-persistent scheduling configuration that is configured to that corresponding semi-persistent scheduling is used acquiescence represents; Corresponding M AC is mainly disposed the apply the default MAC main configuration that is configured to that uses acquiescence to be represented; Deexcitation is represented with de-active; The internal storage state report is represented with Buffer Status Report.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (19)
1. there is the processing method of Radio Link problem in a part carrier wave, and it is characterized in that this method comprises: subscriber equipment detects the part carrier wave and the Radio Link problem occurs; Described subscriber equipment hangs the configuration of described part carrier wave or discharges the configuration of described part carrier wave or reset the configuration of described part carrier wave or delete the configuration of described part carrier wave or keep the configuration of described part carrier wave and attempt to recover described part carrier wave.
2. method according to claim 1, it is characterized in that, described subscriber equipment hangs the configuration of described part carrier wave, specifically comprises: described subscriber equipment hangs the automatic request retransmission HARQ entity of mixing of described part carrier wave correspondence and/or the media access control MAC that hangs the semi-persistent scheduling configuration of described part carrier wave correspondence and/or keep described part carrier wave correspondence mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
3. method according to claim 1, it is characterized in that, described subscriber equipment discharges the configuration of described part carrier wave, specifically comprises: described subscriber equipment discharges the HARQ entity of described part carrier wave correspondence and/or the MAC that discharges the semi-persistent scheduling configuration of described part carrier wave correspondence and/or discharge described part carrier wave correspondence mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
4. method according to claim 1, it is characterized in that, described subscriber equipment is reseted the configuration of described part carrier wave, specifically comprises: described subscriber equipment is reseted the MAC layer of described part carrier wave correspondence, and/or described subscriber equipment is to the configuration of described part carrier wave corresponding physical channel application acquiescence, and/or described subscriber equipment is used the configuration of acquiescence to the semi-persistent scheduling of described part carrier wave correspondence, and/or described subscriber equipment mainly disposes the configuration of application acquiescence to the MAC of described part carrier wave correspondence, and/or the public radio-resource-configuration of the described part carrier wave of described subscriber equipment reservation/release correspondence.
5. method according to claim 1, it is characterized in that, described subscriber equipment is deleted the configuration of described part carrier wave, specifically comprises: described subscriber equipment is deleted described part carrier wave and/or is discharged the HARQ entity of described part carrier wave and/or semi-persistent scheduling configuration and/or MAC mainly disposes and/or physical channel configuration or public radio-resource-configuration.
6. method according to claim 5, it is characterized in that, described subscriber equipment is deleted described part carrier wave, specifically comprises: the descending carrier collection of described subscriber equipment is deleted the up-link carrier collection of described part carrier wave and/or described subscriber equipment and is deleted described part carrier wave.
7. method according to claim 1 is characterized in that, described subscriber equipment keeps the configuration of described part carrier wave and attempts recovering described part carrier wave, and specifically comprise: described subscriber equipment keeps the configuration of described part carrier wave; When described subscriber equipment detects the specific reference signal in the sub-district of one or more descending carriers in the described part carrier wave when the duration surpasses predetermined threshold, described subscriber equipment continues to use one or more descending carriers in the described part carrier wave or informing network side to continue to use one or more descending carriers in the described part carrier wave.
8. method according to claim 1 is characterized in that, described Radio Link problem comprises: T310 is overtime, the MAC layer inserts problem at random, wireless chain control layer reaches at least a in the maximum retransmission.
9. method according to claim 1, it is characterized in that, described subscriber equipment detects described part carrier wave and occurs after the Radio Link problem, and this method also comprises: the relevant information of the described part carrier wave of described Radio Link problem appears in the described network side of described notification of user equipment.
10. method according to claim 1 is characterized in that, described subscriber equipment detects described part carrier wave and occurs after the Radio Link problem, and this method also comprises: described subscriber equipment continues to keep communicating by letter with described network side.
11. there is the treatment system of Radio Link problem in a part carrier wave, it is characterized in that, this system comprises: detecting unit; This method also comprises: suspension unit or releasing unit or reset the unit or delete cells or reservation and recovery unit; Wherein,
Detecting unit is used for subscriber equipment and detects the Radio Link problem that the part carrier wave is occurred;
Suspension unit is used for the configuration that described subscriber equipment hangs described part carrier wave;
Releasing unit is used for the configuration that described subscriber equipment discharges described part carrier wave;
Reset the unit, be used for the configuration that described subscriber equipment is reseted described part carrier wave;
Delete cells is used for the configuration that described subscriber equipment is deleted described part carrier wave;
Keep and recovery unit, be used for described subscriber equipment and keep the configuration of described part carrier wave and attempt recovering described part carrier wave.
12. system according to claim 11, it is characterized in that, described suspension unit is further used for that described subscriber equipment hangs the HARQ entity of described part carrier wave correspondence and/or the MAC that hangs the semi-persistent scheduling configuration of described part carrier wave correspondence and/or keep described part carrier wave correspondence mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
13. system according to claim 11, it is characterized in that, described releasing unit is further used for that described subscriber equipment discharges the HARQ entity of described part carrier wave correspondence and/or the MAC that discharges the semi-persistent scheduling configuration of described part carrier wave correspondence and/or discharge described part carrier wave correspondence mainly disposes and/or physical channel configuration and/or public radio-resource-configuration.
14. system according to claim 11, it is characterized in that, the described unit of reseting is further used for the MAC layer that described subscriber equipment is reseted described part carrier wave correspondence, and/or described subscriber equipment is to the configuration of described part carrier wave corresponding physical channel application acquiescence, and/or described subscriber equipment is used the configuration of acquiescence to the semi-persistent scheduling of described part carrier wave correspondence, and/or described subscriber equipment mainly disposes the configuration of application acquiescence to the MAC of described part carrier wave correspondence, and/or the public radio-resource-configuration of the described part carrier wave of described subscriber equipment reservation/release correspondence.
15. system according to claim 11, it is characterized in that, described delete cells is further used for described subscriber equipment and deletes described part carrier wave and/or discharge the HARQ entity of described part carrier wave and/or semi-persistent scheduling configuration and/or MAC mainly disposes and/or physical channel configuration or public radio-resource-configuration.
16. system according to claim 15, it is characterized in that, described delete cells also comprises: the carrier wave removing module, the descending carrier collection that is used for described subscriber equipment is deleted the up-link carrier collection of described part carrier wave and/or described subscriber equipment and is deleted described part carrier wave.
17. system according to claim 11 is characterized in that, described reservation and recovery unit are further used for the configuration that described subscriber equipment keeps described part carrier wave; When described subscriber equipment detects the specific reference signal in the sub-district of one or more descending carriers in the described part carrier wave when the duration surpasses predetermined threshold, described subscriber equipment continues to use one or more descending carriers in the described part carrier wave or informing network side to continue to use one or more descending carriers in the described part carrier wave.
18. system according to claim 11 is characterized in that, this system also comprises: notification unit is used for the relevant information that the described part carrier wave of described Radio Link problem appears in the described network side of described notification of user equipment.
19. system according to claim 11 is characterized in that, this system also comprises: the communication holding unit is used for described subscriber equipment and continues to keep communicating by letter with described network side.
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