CN102932900B - The processing method and processing device of time unifying timer in multi-carrier communications systems - Google Patents
The processing method and processing device of time unifying timer in multi-carrier communications systems Download PDFInfo
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- CN102932900B CN102932900B CN201110226077.7A CN201110226077A CN102932900B CN 102932900 B CN102932900 B CN 102932900B CN 201110226077 A CN201110226077 A CN 201110226077A CN 102932900 B CN102932900 B CN 102932900B
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Abstract
The present invention provides a kind of processing method and processing device of time unifying timer in multi-carrier communications systems, this method includes：It depositing in case of multiple groups, UE is the duration that respective TAT is safeguarded in each grouping, wherein, belong to same grouping using the cell of identical TA；Whether UE is overtime according to the corresponding TAT of each grouping, safeguards the uplink sync status of the cell in the grouping.The present invention solves in the relevant technologies and only safeguards TAT in main plot, so as to cause UE can not directly learn secondary cell grouping uplink synchronous situation, UE is possible to carry out uplink when secondary cell grouping is in desynchronizing state, base station side can not normally receive the problem of uplink signal of these cells, and the program has been adapted in multi-carrier communications systems to more TA and the demand more being grouped.
Description
Technical field
The present invention relates to the communications field, in particular to time unifying timer in a kind of multi-carrier communications systems
Processing method and processing device.
Background technology
Draw in advanced long-term evolution system (Long Term Evolution Advance, referred to as LTE-Advanced)
Many new technologies are entered to meet the primary demand of IMT-Advanced, one technology of most important one is exactly carrier aggregation.
Since current radio spectrum resources are very in short supply, and the index higher of IMT-Advanced requirement peak rates is (high
100Mbps is supported under mobility, 1Gbps is supported under Hypomobility), the bandwidth with current LTE standard maximum 20MHz is can not
Meet IMT-Advanced requirements, so need to extend to more high bandwidth, such as 40MHz, 60MHz, it is even higher.Improve band
One of wide and peak rate method is that frequency domain is expanded, such as several LTE frequency bands based on 20MHz are passed through " carrier wave
The mode of polymerization " carries out bandwidth expansion, and here it is the essence of carrier aggregation technology.Therefore, LTE-Advanced systems also belong to
Multicarrier system.
In LTE-Advanced systems, the carrier wave for participating in polymerization is referred to as component carrier (Component Carrier), uses
Family equipment (UserEquipment, referred to as UE) can carry out transmitting-receiving transmission on multiple component carriers between eNB simultaneously.
Component carrier can use LTE defined frequency ranges, can also use the frequency range specially increased newly for LTE-Advanced.It is based on
The situation of frequency spectrum resource anxiety at present, it is impossible to always there is continuous component carrier on frequency domain to distribute to operator's use, therefore divide
Loading gage wave can be continuous or discontinuous on frequency band.Main plot and secondary cell are introduced in carrier aggregation
Concept, main plot refer to UE and initiate RRC connections foundation or RRC connection reconstructions or the small of main plot is designated as in handoff procedure
Area；Secondary cell refers to the frequency point for being different from main plot, and is configured after UE enters RRC connection status, additional wireless for providing
Resource.In carrier aggregation system, serving cell includes main serving cell and auxiliary serving cell.
After introducing carrier aggregation technology, UE can be simultaneously in multiple serving cells in RRC connected states (RRC_CONNECTED)
On carry out transmitting-receiving transmission, but for the UE of Idle state (RRC_IDLE), as LTE, be only capable of it is resident on one cell, UE
After being successfully accessed in the cell, i.e. after UE establishes RRC connections in the cell, according to business needs, base station can be by special
It is the newly-increased cell of UE distribution with RRC signaling, after distributing these newly-increased cells, at this, to increase cell newly not enterprising immediately by base station and UE
Row data transmit-receive, i.e. base station do not increase newly at this and send business datum to UE in cell, and UE preserves the configuration information in the cell,
Also business datum is sent to base station not in the cell, waits for the further action of base station.Subsequent base stations can be according to business
It needs to activate the cell, after which is activated, base station and UE could carry out data transmit-receive in the cell.
In LTE system, in order to realize and keep the uplink synchronous between user equipment and base station, base station according to base station with
Propagation delay time sending time lead (Timing Advance, referred to as TA) between each user equipment to each user equipment,
The Timing Advance that user equipment is sent according to base station shifts to an earlier date or postpones the opportunity of respective uplink, so as to make up user terminal
To the propagation delay time of base station so that the uplink signal of different user devices all reaches base station within the reception window of base station.Such as
Fruit is larger for the propagation delay time difference of each minizone in the cell of some UE configurations, can not use identical TA, then carrying
Just need to introduce the concept of more TA in wave paradigmatic system.According to the situation for using TA, the UE for using identical TA can be placed on together
In one group, the concept of grouping is thus introduced.
In carrier aggregation system before, all carrier waves use identical TA, and main plot is first as TA controls are received
The cell of element, while also serve as the cell of maintenance time alignment timer (time alignment timer, referred to as TAT).
However, after the concept for introducing grouping and more TA, due to there are different groupings and different TA, if it is small that master is still used only
Area cannot then meet grouping and the requirement of more TA as the cell for safeguarding TAT.Using only the grouping of secondary cell, since UE can not
Directly learn the uplink synchronous situation of secondary cell grouping, UE is possible to carry out uplink biography when secondary cell grouping is in desynchronizing state
It is defeated, cause base station side that can not normally receive the situation of uplink signal of these cells, cause the loss of upstream data.
Invention content
It is a primary object of the present invention to provide a kind of processing method of time unifying timer in multi-carrier communications systems
And device, at least to solve the above problems.
One aspect of the present invention provides a kind of processing method of time unifying timer in multi-carrier communications systems, packet
It includes：It depositing in case of multiple groups, UE is the duration that respective TAT is safeguarded in each grouping, wherein, use the identical time
The cell of lead TA belongs to same grouping；Whether UE is overtime according to the corresponding TAT of each grouping, safeguards in the grouping
The uplink sync status of cell.
Another aspect of the present invention provides a kind of processing unit of time unifying timer in multi-carrier communications systems,
Including：TAT duration maintenance modules, for depositing in case of multiple groups, for each grouping safeguard respective TAT when
It is long, wherein, the cell using identical Timing Advance TA belongs to same grouping；Uplink sync status maintenance module, is used for
It is whether overtime according to the corresponding TAT of each grouping, safeguard the uplink sync status of the cell in the grouping.
By the present invention, it is adopted as each grouping and is configured and manages respective TAT respectively, solve in the relevant technologies only
Safeguard TAT in main plot, so as to cause UE can not directly learn the uplink synchronous situation of secondary cell grouping, UE is possible to auxiliary
Uplink is carried out when cell grouping is in desynchronizing state, base station side can not normally receive asking for the uplink signal of these cells
Topic, the program have adapted to provide more smart more TA and the demand more being grouped for each grouping in multi-carrier communications systems
True uplink synchronous control, so as to reduce the error probability of uplink, thus improves the service performance of whole system.
Description of the drawings
Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the application, this hair
Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：
Fig. 1 is the signal of the processing method of time unifying timer in multi-carrier communications systems according to embodiments of the present invention
Figure；
Fig. 2 is the structure of the processing unit of time unifying timer in multi-carrier communications systems according to embodiments of the present invention
Block diagram；
Fig. 3 is the schematic diagram of the covering of carrier aggregation according to embodiments of the present invention；
Fig. 4 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 1
Figure；
Fig. 5 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 2
Figure；
Fig. 6 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 3
Figure；
Fig. 7 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 4
Figure；
Fig. 8 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 5
Figure；And
Fig. 9 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 6
Figure.
Specific embodiment
Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that do not conflicting
In the case of, the feature in embodiment and embodiment in the application can be combined with each other.
In carrier aggregation system before, all carrier waves use identical TA, and main plot is first as TA controls are received
The cell of element, while the cell of maintenance time alignment timer is also served as, master is used only after the concept for introducing grouping and more TA
Cell is that inadequate, different grouping needs to safeguard according to the time difference for receiving TA in respectively group as the cell for safeguarding TAT
Different TA timers.It needs to safeguard a TAT in each grouping at this time.In the grouping comprising main plot, it can continue to make
With main plot as the cell for safeguarding TAT.After introducing TAT in the group for only including multiple secondary cells, need to consider that TAT will be how
It safeguards, when TAT time-out, UE needs which operation performed.
Fig. 1 is the flow of the processing method of time unifying timer in multi-carrier communications systems according to embodiments of the present invention
Figure, this method include：
Step S102 is being deposited in case of multiple groups, and UE is the duration that respective TAT is safeguarded in each grouping, wherein,
Belong to same grouping using the cell of identical TA；
Whether step S104, UE are overtime according to the corresponding TAT of each grouping, safeguard the uplink synchronous of the cell in the grouping
State.
In this way, when there are during multiple groupings, UE manages a TAT in each grouping, i.e., comprising main plot
The TAT of grouping and the only grouping comprising secondary cell can be managed respectively, and this method solve small only in master in the relevant technologies
Area safeguards that TAT, caused UE can not directly learn the uplink synchronous situation of secondary cell grouping, and UE is possible at secondary cell grouping
Uplink is carried out when desynchronizing state, the problem of base station side can not normally receive the uplink signal of these cells, the program is fitted
It has answered in multi-carrier communications systems to more TA and the demand more being grouped, more accurate uplink synchronous can be provided for each grouping
The control of state so as to reduce the mistake of uplink and losing probability, thus improves the service performance of whole system.
As a preferred mode, while UE is that the duration of each TAT for being grouped in UE sides is safeguarded in each grouping,
Base station can be that above-mentioned each grouping is safeguarded accordingly in the duration of the TAT of base station side, so that TAT and base station to UE sides
The processing of the TAT of side is consistent, in addition, also allowing for base station understands the TAT operating statuses of UE sides (although the TAT of UE sides and base station
The TAT of side is two different TAT, still, the two TAT is safeguarded according to identical mode and according to identical configuration,
Then obtained result should be almost consistent), to there is the part trigger action (TAT of base station side at this time in the TAT of UE sides
Consistent trigger action should occur) in the case of, base station is handled accordingly.
The duration of TAT can be configured using RRC signaling, and the duration of the corresponding TAT of grouping only comprising secondary cell can be with
The difference of the duration configuration of the TAT of grouping comprising main plot, alternatively, it is also possible to some cell configuration only in this set
TAT durations for example, the duration of TAT is configured in community configured information, are configured with the cell of the community configured information as this point
The cell of management TAT in group.UE can receive base station as each duration of TAT being respectively configured, the TAT of different grouping
Duration may be the same or different；In addition, the duration of the TAT can currently be included according in the grouping corresponding to the TAT
The situation of cell be configured or reconfigured, that is to say, that when base station performs addition, deletes, re-matches some in the grouping
During cell, the TAT durations that UE is safeguarded can be reconfigured according to composition cell condition newest in the grouping.When institute in the grouping
When some secondary cells are all deleted, UE no longer safeguards the TAT of the grouping.
The TAT of the maintenance to the TAT of the grouping only comprising secondary cell and the grouping comprising main plot was safeguarded individually below
Journey illustrates.
For only including the grouping of secondary cell
(1) startup or reboot process：Start when UE receives the TA values in the grouping or restart the TAT in the group.Whenever
When cell in this set receives TA control elements, start or restart TAT.
(2) processing when cell state of activation changes in being grouped：When all cells are all gone in the grouping for only including secondary cell
After activation, if TAT and had not timed out at this time, continue to safeguard the TAT, until TAT time-out；Before TAT time-out, if activating this point
Secondary cell in group does not need to perform uplink synchronous again, it is believed that the secondary cell being activated in the grouping is still within synchronous shape
State.
(3) acquisition of TAT operation phase interception reference signal (sounding reference signal, referred to as SRS)
And the processing of subsequent base stations：After being grouped in only comprising secondary cell completes uplink synchronous, in the operation phase of TAT, UE can be
SRS or the operation phase in TAT are sent in the secondary cell being active in the grouping, in deactivation in the grouping
Secondary cell on also can be transmitted SRS.After secondary cells all in the grouping all deactivate, UE can it is above-mentioned be configured with TAT when
Long cell sends SRS or can send SRS in any one cell.After UE has sent SRS, base station passes through detection
SRS knows whether to need to carry out time adjustment to UE.When the secondary cell needs to carry out time adjustment, base station can be small by master
The TA adjusted values that secondary cell is grouped are sent to UE by area.UE restarts the TAT of the group after receiving the TA adjusted values of secondary cell grouping.
For the grouping comprising main plot
(1) startup or reboot process：When UE receives the relevant time advance order (time of the grouping comprising main plot
Advance command, referred to as TAC) when, start or restart the TAT of the grouping.
(2) situation of former operating status is kept：When received in the grouping comprising main plot base station issue it is described only comprising auxiliary
During the TA control elements of the grouping of cell, which keeps original state；UE receives the activation of secondary cell in the grouping or deactivates
After life is enabled and performed, to be active as long as there are a cells in the grouping, TAT keeps original state；In addition
In the case of TAT time-out only in the grouping comprising secondary cell, the TAT of the grouping comprising main plot keeps original state.
TAT timeout treatments to the grouping only comprising secondary cell and the TAT of the grouping comprising main plot time-out individually below
Processing illustrates.
For only including the grouping of secondary cell
The TAT that the only grouping comprising secondary cell of any one progress in following several timeout treatment modes may be used surpasses
When handle：
(1) when only including the TAT time-out in the grouping of secondary cell, stop TAT.Base station selected in the grouping one it is auxiliary
Cell, UE is in the secondary cell initiating random access procedure for instruction, obtains the uplink synchronous of the grouping, can be obtained in synchronizing process
TA values are got, start TAT.Specifically, if only there is the secondary cell of activation in the grouping comprising secondary cell, according to the finger of base station
Show that initiating random access procedure is established only comprising secondary cell in some secondary cell that UE is activated in the grouping for only including secondary cell
Grouping uplink synchronous, UE gets the TAT for starting the only grouping comprising secondary cell after TA
(2) when only including the TAT time-out in the grouping of secondary cell, stop TAT.It is deactivated according to the secondary cell that base station is sent
MAC control elements living, deactivate all secondary cells in the grouping, i.e., explicit to deactivate.
(3) when only including the TAT time-out in the grouping of secondary cell, stop TAT.Base station does not have to send secondary cell deactivation
MAC control elements deactivate all secondary cells in the grouping, and UE and base station think that the secondary cell in the grouping at this time is gone
Activation, i.e., it is implicit to deactivate.
(4) after TAT time-out, the configuration of all cells in the group is deleted.
(5) it when the corresponding TAT time-out of the grouping for only including secondary cell, empties all auxiliary small in activated state in the group
The HARQ memories in area；UE is stopped in the cell of secondary cell grouping and is sent SRS, and discharges all secondary cell configurations in the group
SRS resource.
(6) it when the corresponding TAT time-out of the grouping for only including secondary cell, empties all auxiliary small in activated state in the group
The HARQ memories in area；UE is only stopped in the cell of secondary cell grouping and is sent SRS, still retains SRS resource.
(7) it during in TAT i.e. by time-out, to be active if only there are still secondary cells in the grouping comprising secondary cell, root
The secondary cell sent according to base station deactivates MAC control elements and deactivates all secondary cells in the group.Stop TAT after TAT time-out.
(8) during in TAT i.e. by time-out, base station does not have to transmission secondary cell deactivation MAC control elements and deactivates in the grouping
All secondary cells, UE and base station think that the secondary cell in the grouping at this time has deactivated, i.e., implicit to deactivate.TAT time-out
After stop TAT.
(9) during in TAT i.e. by time-out, MAC control elements is deactivated according to the secondary cell that base station is sent, are deactivated in the group
All secondary cells empty the HARQ memories of all secondary cells being active in the grouping for only including secondary cell,
SRS is sent in all secondary cells that UE is stopped in the grouping for only including secondary cell, release or reservation only include secondary cell
The SRS resource of all secondary cells in grouping stops TAT after TAT time-out.
(10) during in TAT i.e. by time-out, base station does not have to transmission secondary cell deactivation MAC control elements and deactivates in the grouping
All secondary cells, UE and base station think that the secondary cell in the grouping at this time has deactivated, i.e., implicit to deactivate, and empties this only
The HARQ memories of all secondary cells being active in grouping comprising secondary cell, UE stop at this only comprising auxiliary small
SRS is sent in all secondary cells in the grouping in area, release or reservation only include all secondary cells in the grouping of secondary cell
SRS resource stops TAT after TAT time-out.
For the grouping comprising main plot
(1) when in the group comprising main plot TAT time-out but only comprising secondary cell group in TAT have not timed out when, it is believed that
TAT time-out only in the group comprising secondary cell, at this time can be according to the TAT timeout treatment sides for the grouping for only including secondary cell above
Formula is handled, such as：Stop the TAT in the group of secondary cell.The secondary cell that UE thinks all in the group of secondary cell at this time is all located
In deactivation status.Empty the HARQ memories of all secondary cells in activated state in the group of secondary cell；UE notices are high-rise such as
The SRS resource being configured in all cells in the group of RRC release secondary cells.
(2) TAT when TAT in the group comprising main plot will be overtime but only in the group comprising secondary cell has not timed out
When, according to the MAC control elements that base station is sent, deactivation only includes the auxiliary small of all activated state in the grouping of secondary cell
Area.In grouping comprising main plot after TAT time-out, it is believed that the TAT time-out only in the grouping comprising secondary cell stops the TAT.UE
Empty the HARQ memories of secondary cell all in the only grouping comprising secondary cell；UE notices RRC is released to these secondary cells and matches
The SRS resource put.
Provide the TAT's in the grouping that secondary cell is only included in the carrier aggregation system of more TA in the above methods
Configuration, maintenance and timeout treatment.Based on this core concept, in actual application, the RRC agreements of UE can be changed
Dynamic, the TAT of grouping of the addition configuration parameter to only including secondary cell is configured；Change can also be generated to MAC protocol, with bright
The description of the problems such as true only startup time of the TAT of the grouping comprising secondary cell, maintenance and timeout treatment.
Fig. 2 is the structure of the processing unit of time unifying timer in multi-carrier communications systems according to embodiments of the present invention
Block diagram, the device include：TAT durations maintenance module 22 for depositing in case of multiple groups, is safeguarded each for each grouping
From TAT duration, wherein, belong to same grouping using the cell of identical TA；Uplink sync status maintenance module 24 is used
In whether overtime according to the corresponding TAT of each grouping, the uplink sync status of the cell in the grouping is safeguarded.
Above TAT durations maintenance module 22 and uplink sync status maintenance module 24 can be located at base station side or UE sides.
In addition, the device can also include：Configuration module, positioned at base station side, for for the respective TAT of each packet configuration
Duration, the duration of the TAT of different grouping may be the same or different.
Fig. 3 is the schematic diagram of the covering of carrier aggregation according to embodiments of the present invention.As shown in figure 3, serving cell 1 (under
Line frequency point f1, uplink frequency point f1 '), referred to as CC1 (DLf1, ULf1 ')；Serving cell 2 (downlink frequency point f2, uplink frequency point
F2 '), referred to as CC2 (DL f2, UL f2 ')；Serving cell 3 (downlink frequency point f3, uplink frequency point f3 ') can carry out carrier wave and gather
It closes.User equipment (UE) resides on CC1 and RRC connection procedures is initiated on CC1, and CC1 is considered the main serving cell of UE, and
CC1 is in group 1.Serving cell CC2 and CC3 are secondary cell, in group 2.The cell ID of CC1 to CC3 is respectively 1~3.Below
By taking scene shown in Fig. 3 as an example, by embodiment 1-6 with mode of frequency division duplexing (Frequency Division Duplex, letter
Referred to as FDD) for the processing of time unifying timer in multi-carrier communications systems provided in an embodiment of the present invention is described in detail
Scheme, embodiment 1-6 combine the technical solution of above-mentioned multiple preferred embodiments.
Embodiment 1
Fig. 4 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 1
Figure, as shown in figure 4, including the following steps：
Step 401：UE initiates RRC connections on CC1, and CC2 and CC3 is configured to UE in RRC connection reconfiguration message in base station
Information and grouping information.CC1 is main serving cell, is grouped 1, CC2 and CC3 as auxiliary serving cell, is grouped 2；Group 1
A length of 1280ms during TAT.Base station a length of 750ms during the TAT of configuration group 2 in RRC connection reconfiguration message；Secondary cell is configured in base station
A length of infinity during packet data inactivity timer.
Step 402：Base station sends secondary cell activation MAC control elements, activates CC2 and CC3.
Step 403：The uplink synchronous of UE initiating random access procedure foundation groups 2 on CC2, when the random access that UE is received
During TA in response message, organize 2 TAT and start.After the completion of the uplink synchronous of group 2, in the TAT operation phase, UE can be in CC2
With SRS is sent on CC3.
Step 404：Base station sends the time adjustment that TA control elements carry out group 2 on the CC of group 2.
Step 405：UE restarts the TAT of group 2 when receiving the TA control elements of group 2 of base station transmission.
Step 406：After a period of time, 2 TAT time-out is organized, for CC2 and CC3 still in state of activation, CC2 and CC3 are clear at this time
Empty respectively HARQ memories, and notify the SRS resource of RRC release configurations.
Step 407：Base station instruction UE initiates uplink synchronous process on CC2.
Step 408：CC2 re-initiates random access procedure, carries out uplink synchronous, and during uplink synchronous, group 2 receives
The TA values carried in random access response, the TAT that group 2 is safeguarded start；After the completion of the uplink synchronous of group 2, rank is run in TAT
Section, UE can send SRS on CC2 and CC3.
Step 409：After a period of time, TAT is still in operating status, the CC2 in the group of base station deletion at this time 2.Since CC3 makes
A length of 1280ms during TAT, thus at this time delete CC2 RRC connection reconfiguration message in simultaneously configuration group 2 TAT durations
For 1280ms；
Step 410：UE receives application message content after RRC connection reconfiguration message, continues to safeguard TAT.
Embodiment 2
Fig. 5 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 2
Figure, as shown in figure 5, including the following steps：
Step 501：UE initiates RRC connections on CC1, and CC2 and CC3 is configured to UE in RRC connection reconfiguration message in base station
Information and grouping information.CC1 is main serving cell, is grouped 1, CC2 and CC3 as auxiliary serving cell, is grouped 2；Group 1
A length of 1280ms during TAT.Base station a length of 750ms during the TAT of configuration group 2 in RRC connection reconfiguration message；Secondary cell is configured in base station
A length of infinity during packet data inactivity timer.
Step 502：Base station sends secondary cell activation MAC control elements, activates CC2 and CC3；
Step 503：The uplink synchronous of UE initiating random access procedure foundation groups 2 on CC2, when the random access that UE is received
During TA in response message, organize 2 TAT and start.After the completion of the uplink synchronous of group 2, in the TAT operation phase, UE can be in CC2
With SRS is sent on CC3；
Step 504：Base station sends the time adjustment that TA control elements carry out group 2 on the CC of group 2；
Step 505：UE restarts the TAT of group 2 when receiving the TA control elements of group 2 of base station transmission；
Step 506：After a period of time, when the TAT of group 2 is 950ms, i.e., will time-out when, at this time CC2 and CC3 still in
State of activation, base station send secondary cell and deactivate MAC control elements deactivation CC2 and CC3.
Step 507：After CC2 and CC3 is deactivated, the HARQ memories of the two cells are emptied, UE stops at the two
SRS signal is sent in cell.The TAT of group 2 is not off after CC2 and CC3 is deactivated.TAT time-out after a period of time, stops
TAT.CC2 and CC3 is not activated again at this time, the SRS resource of notice RRC release configurations；
Step 508：Base station sends secondary cell activation MAC control element activation CC2 and CC3 after a period of time；
Step 509：After UE application MAC control elements, need organizing two CC2 initiating random access procedure completions group 2
Uplink synchronous.TA values in 2 application random access responses of group, organize 2 TAT and restart.After the completion of the uplink synchronous of group 2, in TAT
Operation phase, UE can send SRS on CC2 and CC3.
Embodiment 3
Fig. 6 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 3
Figure, as shown in fig. 6, including the following steps：
Step 601：UE initiates RRC connections on CC1, and CC2 and CC3 is configured to UE in RRC connection reconfiguration message in base station
Information and grouping information.CC1 is main serving cell, is grouped 1, CC2 and CC3 as auxiliary serving cell, is grouped 2；Group 1
A length of 1280ms during TAT.Base station a length of 750ms during the TAT of configuration group 2 in RRC connection reconfiguration message；Secondary cell is configured in base station
A length of infinity during packet data inactivity timer.
Step 602：Base station sends secondary cell activation MAC control elements, activates CC2 and CC3；
Step 603：The uplink synchronous of UE initiating random access procedure foundation groups 2 on CC2, when UE receives random access
During TA in response message, organize 2 TAT and start.After the completion of the uplink synchronous of group 2, in the TAT operation phase, UE can be in CC2
With SRS is sent on CC3；
Step 604：Base station sends the time adjustment that TA control elements carry out group 2 on the CC of group 2；
Step 605：UE restarts the TAT of group 2 when receiving the TA control elements of group 2 of base station transmission；
Step 606：When TAT has not timed out, base station sends secondary cell and deactivates control element deactivation CC2 and CC3.
Step 607：After CC2 and CC3 is deactivated, UE continues to safeguard TAT, stops sending SRS at this time on CC2 and CC3；
Step 608：After a period of time, base station sends secondary cell activation control element activation CC2 and CC3.
Step 609：UE application controls element activates CC2 and CC3, and TAT has not timed out at this time, and UE need not initiate random access
The uplink synchronous of process foundation group 2, but 2 current TAT of group can be continuing with；
Step 610：The TAT time-out of group 2 after a period of time, CC2 and CC3 are still in state of activation at this time.UE acquiescences TAT surpasses
When after CC2 and CC3 be in deactivation status.After TAT time-out, TAT stops, and CC2 and the corresponding HARQ memories of CC3 are emptied,
The SRS resource that release CC2 and CC3 is configured.
Embodiment 4
Fig. 7 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 4
Figure, as shown in fig. 7, comprises following steps：
Step 701：UE initiates RRC connections on CC1, and CC2 and CC3 is configured to UE in RRC connection reconfiguration message in base station
Information and grouping information.CC1 is main serving cell, is grouped 1, CC2 and CC3 as auxiliary serving cell, is grouped 2；Group 1
A length of 1280ms during TAT.Base station a length of 750ms during the TAT of configuration group 2 in RRC connection reconfiguration message；
Step 702：Base station sends secondary cell activation MAC control elements, activates CC2 and CC3；
Step 703：The uplink synchronous of UE initiating random access procedure foundation groups 2 on CC2, when UE receives random access
During TA in response message, organize 2 TAT and start.After the completion of the uplink synchronous of group 2, in the TAT operation phase, UE can be in CC2
With SRS is sent on CC3；
Step 704：Base station sends the time adjustment that TA control elements carry out group 2 on the CC of group 2；
Step 705：UE restarts the TAT of group 2 when receiving the TA control elements of group 2 of base station transmission；
Step 706：The TAT of group 1 is overtime after a period of time, and the TAT of group 2 has not timed out, and CC2 and CC3 are in swashing at this time
State living, at this time UE give tacit consent to all activated secondary cell and be deactivated.The TAT time-out of group 2 is thought at this time, stops the TAT.UE
Empty these secondary cells corresponding HARQ cachings respectively with base station.UE notices RRC discharges the SRS resource of these secondary cells.
Embodiment 5
Fig. 8 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 5
Figure, as shown in figure 8, including the following steps：
Step 801：UE initiates RRC connections on CC1, and CC2 and CC3 is configured to UE in RRC connection reconfiguration message in base station
Information and grouping information.CC1 is main serving cell, is grouped 1, CC2 and CC3 as auxiliary serving cell, is grouped 2；Group 1
A length of 1280ms during TAT.Base station a length of 750ms during the TAT of configuration group 2 in RRC connection reconfiguration message；
Step 802：Base station sends secondary cell activation MAC control elements, activates CC2 and CC3；
Step 803：The uplink synchronous of UE initiating random access procedure foundation groups 2 on CC2, when UE receives random access
During TA in response message, organize 2 TAT and start.After the completion of the uplink synchronous of group 2, in the TAT operation phase, UE can be in CC2
With SRS is sent on CC3；
Step 804：Base station sends the time adjustment that TA control elements carry out group 2 on the CC of group 2；
Step 805：UE restarts the TAT of group 2 when receiving the TA control elements of group 2 of base station transmission；
Step 806：The TAT of group 1 is 980ms after a period of time, i.e. TAT i.e. will be overtime, and the TAT for organizing 2 at this time is 200ms,
It has not timed out；CC2 and CC3 are in state of activation.Base station thinks that the TAT of group 1 i.e. will be overtime at this time, sends secondary cell and deactivates
MAC control elements deactivate current all activated secondary cell.
Step 807：After the TAT time-out of group 1, it is believed that organize 2 TAT time-out, stop the TAT.UE and base station empty respectively by
In the corresponding HARQ cachings of the deactivated secondary cell of TAT time-out of group 1.UE notices RRC discharges the SRS resource of these secondary cells.
Embodiment 6
Fig. 9 is the detailed process of the processing method of time unifying timer in the multi-carrier communications systems according to embodiment 6
Figure, as shown in figure 9, including the following steps：
Step 901：UE initiates RRC connections on CC1, and CC2 and CC3 is configured to UE in RRC connection reconfiguration message in base station
Information and grouping information.CC1 is main serving cell, is grouped 1, CC2 and CC3 as auxiliary serving cell, is grouped 2；Group 1
A length of 1280ms during TAT.Base station a length of 750ms during the TAT of configuration group 2 in RRC connection reconfiguration message；Secondary cell is configured in base station
A length of infinity during packet data inactivity timer.
Step 902：Base station sends secondary cell activation MAC control elements, activates CC2 and CC3；
Step 903：The uplink synchronous of UE initiating random access procedure foundation groups 2 on CC2, when UE receives random access
During TA in response message, organize 2 TAT and start.After the completion of the uplink synchronous of group 2, in the TAT operation phase, UE can be in CC2
With SRS is sent on CC3.
Step 904：Base station sends the time adjustment that TA control elements carry out group 2 on the CC of group 2.
Step 905：UE restarts the TAT of group 2 when receiving the TA control elements of group 2 of base station transmission.
Step 906：When TAT has not timed out, base station sends secondary cell and deactivates control element deactivation CC2 and CC3.
Step 907：After CC2 and CC3 is deactivated, UE continues to safeguard TAT, continues to send SRS at this time on CC2 and CC3.
Step 908：Base station judges whether the group 2 of UE needs to carry out time tune by detecting the SRS sent on CC2 and CC3
It is whole.
Step 909：The time adjustment MAC control elements of base station transmission group 2 on CC1.
Step 910：The time adjustment MAC control elements for the group 2 that UE is sent using base station, organize 2 TAT and restart.
Step 911：After a period of time, base station sends secondary cell activation control element activation CC2 and CC3.
Step 912：UE application controls element activates CC2 and CC3, and TAT has not timed out at this time, and UE need not initiate random access
The uplink synchronous of process foundation group 2, but 2 current TAT of group can be continuing with.
Step 913：The TAT time-out of group 2 after a period of time, CC2 and CC3 are still in state of activation at this time.UE acquiescences TAT surpasses
When after CC2 and CC3 be in deactivation status.After TAT time-out, TAT stops, and CC2 and the corresponding HARQ memories of CC3 are emptied,
UE does not send SRS on CC2 and CC3.
It can be seen from the above description that scheme provided in an embodiment of the present invention is solved in the relevant technologies only in master
Cell maintenance TAT, so as to cause UE can not directly learn the uplink synchronous situation of secondary cell grouping, UE is possible in secondary cell
The problem of grouping carries out uplink when being in desynchronizing state, and base station side can not normally receive the uplink signal of these cells, should
Scheme has been adapted in multi-carrier communications systems to more TA and the demand more being grouped, and can be provided for each grouping on more accurate
Row Synchronization Control so as to reduce the error probability of uplink, thus improves the service performance of whole system.
Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general
Computing device realize that they can concentrate on single computing device or be distributed in multiple computing devices and be formed
Network on, optionally, they can be realized with the program code that computing device can perform, so as to be stored in
They are either fabricated to each integrated circuit modules respectively or will be in them by computing device to perform in storage device
Multiple modules or step be fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific hard
Part and software combine.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (12)
1. a kind of processing method of time unifying timer in multi-carrier communications systems, which is characterized in that including：
It is depositing in case of multiple groups, user equipment (UE) safeguards respective time unifying timer TAT's for each grouping
Duration, wherein, the cell using identical Timing Advance TA belongs to same grouping；
Whether the UE is overtime according to the corresponding TAT of each grouping, safeguards the uplink sync status of the cell in the grouping；
Wherein, after all secondary cells in the grouping for only including secondary cell are deactivated, if described only include secondary cell
The TAT of grouping have not timed out, then continue to safeguard the TAT；
The timeout treatment of the TAT of grouping comprising main plot includes at least one of：When the TAT of the grouping comprising main plot surpasses
When but only the TAT of grouping comprising secondary cell has not timed out, the TAT of the acquiescence only grouping comprising secondary cell is overtime；When comprising
The TAT time-out of the grouping of main plot but only the TAT of grouping comprising secondary cell has not timed out, according to deactivating the instruction of base station
All secondary cells being active only in the grouping comprising secondary cell；
In the operation phase of the TAT for the grouping for only including secondary cell, when all auxiliary small in the only grouping comprising secondary cell
After area deactivates, UE obtains TA using continuing to send the method for interception reference signal SRS in deactivated predetermined secondary cell,
The predetermined secondary cell includes one below：The secondary cell of the duration of TAT is configured for, any one secondary cell.
2. according to the method described in claim 1, it is characterized in that, start or restart the grouping comprising main plot at the following moment
TAT：
At the time of the UE receives the grouping comprising main plot relevant time advance order TAC.
3. according to the method described in claim 1, it is characterized in that, start at the following moment or restart point only comprising secondary cell
The TAT of group：
At the time of the UE receives the only TA of the grouping comprising secondary cell；Or
At the time of the UE receives the only TA control elements of the grouping comprising secondary cell.
4. according to the method described in claim 1, it is characterized in that, it is described only comprising secondary cell grouping TAT time-out before,
It to be activated if there are secondary cells in the only grouping comprising secondary cell, the secondary cell being activated is still within synchronous shape
State, the secondary cell being activated do not need to perform uplink synchronous process.
It is 5. according to the method described in claim 1, it is characterized in that, predetermined in the only grouping comprising secondary cell in UE
After sending SRS in secondary cell, further include：
The UE restarts institute after receiving the TA adjusted values of the grouping where the predetermined secondary cell that base station is sent by main plot
The TAT of grouping is stated, wherein, it needs to be that base station is determined by detecting the SRS to the time adjustment that secondary cell carries out.
6. according to the method described in claim 1, it is characterized in that, the TAT of the grouping comprising main plot is in situations below
It is lower to keep former operating status：
When the cell comprising in the grouping of main plot receives the TA controls for issuing the only grouping comprising secondary cell in base station
In the case of element；And/or
It is described to include master after UE receives the activation of the secondary cell in the grouping comprising main plot or deactivation command and execution
Also there are at least one cells in the grouping of cell to be active；And/or
In the case of TAT time-out in the only grouping comprising secondary cell.
7. the method according to claim 1 or 6, which is characterized in that the only timeout treatment of the TAT of the grouping comprising secondary cell
Including at least one of：
When the only TAT time-out of the grouping comprising secondary cell, stop the TAT, if point only comprising secondary cell
There is the secondary cell of activation in group, some activated in the only grouping comprising secondary cell according to the instruction UE of base station
The uplink synchronous of the grouping of secondary cell is only included in secondary cell described in initiating random access procedure foundation, after the UE gets TA
The only TAT of the grouping comprising secondary cell described in starting；
When the only TAT time-out of the grouping comprising secondary cell, stop the TAT, according to deactivating the instruction of base station
All secondary cells only in the grouping comprising secondary cell；
When the only TAT time-out of the grouping comprising secondary cell, stop the TAT, only included described in base station and UE acquiescences auxiliary
All secondary cells in the grouping of cell have deactivated；
When the only TAT time-out of the grouping comprising secondary cell, only included described in deletion all auxiliary in the grouping of secondary cell
The configuration of cell；
When the only TAT time-out of the grouping comprising secondary cell, all places in the only grouping comprising secondary cell are emptied
In the HARQ memories of the secondary cell of state of activation, UE is stopped in all secondary cells in the only grouping comprising secondary cell
SRS is sent, the SRS resource of all secondary cells in the grouping of secondary cell is only included described in release or reservation；
In the case of the also surplus scheduled duration of TAT distances time-out of the only grouping comprising secondary cell, if described only comprising auxiliary
There are still secondary cells in the grouping of cell to be active, point according to deactivating the instruction of base station only comprising secondary cell
All secondary cells in group when the only TAT time-out of the grouping comprising secondary cell, stop the TAT；
In the case of the also surplus scheduled duration of TAT distances time-out of the only grouping comprising secondary cell, base station and UE acquiescences institute
All secondary cells stated in the only grouping comprising secondary cell have deactivated, when the TAT of the only grouping comprising secondary cell surpasses
Constantly, stop the TAT；
In the case of the also surplus scheduled duration of TAT distances time-out of the only grouping comprising secondary cell, according to the instruction of base station
All secondary cells in the grouping of secondary cell are only included described in deactivating, are emptied all in the only grouping comprising secondary cell
The HARQ memories for the secondary cell being active, UE stop at all secondary cells in the only grouping comprising secondary cell
The SRS resource of all secondary cells in the grouping of secondary cell is only included described in upper transmission SRS, release or reservation, is only wrapped when described
During the TAT time-out of the grouping containing secondary cell, stop the TAT；
In the case of the also surplus scheduled duration of TAT distances time-out of the only grouping comprising secondary cell, base station and UE acquiescences institute
All secondary cells stated in the only grouping comprising secondary cell have deactivated, and empty the institute in the only grouping comprising secondary cell
There are the HARQ memories for the secondary cell being active, UE stops at all auxiliary small in the only grouping comprising secondary cell
Send SRS in area, release or the SRS resource for retaining all secondary cells in the grouping for only including secondary cell, when it is described only
During the TAT time-out of the grouping comprising secondary cell, stop the TAT.
8. according to the method described in any one of claim 1-6, which is characterized in that safeguarding the respective time to be each grouped
It is aligned before the duration of timer TAT, further includes：
Receive base station be respectively each packet configuration the TAT duration, wherein, the duration of the TAT of different grouping it is identical or
It is different.
9. according to the method described in claim 8, it is characterized in that, the duration of the TAT is configured in community configured information, match
Cell of the cell of the community configured information as the management TAT in the grouping is put.
10. a kind of processing unit of time unifying timer in multi-carrier communications systems, which is characterized in that including：
Time unifying timer TAT duration maintenance modules for depositing in case of multiple groups, are safeguarded each for each grouping
From TAT duration, wherein, the cell using identical Timing Advance TA belongs to same grouping；
Whether uplink sync status maintenance module for overtime according to the corresponding TAT of each grouping, is safeguarded upper in the grouping
Row synchronous regime；
Wherein, after all secondary cells in the grouping for only including secondary cell are deactivated, if described only include secondary cell
The TAT of grouping have not timed out, then continue to safeguard the TAT；
The timeout treatment of the TAT of grouping comprising main plot includes at least one of：When the TAT of the grouping comprising main plot surpasses
When but only the TAT of grouping comprising secondary cell has not timed out, the TAT of the acquiescence only grouping comprising secondary cell is overtime；When comprising
The TAT time-out of the grouping of main plot but only the TAT of grouping comprising secondary cell has not timed out, according to deactivating the instruction of base station
All secondary cells being active only in the grouping comprising secondary cell；
In the operation phase of the TAT for the grouping for only including secondary cell, when all auxiliary small in the only grouping comprising secondary cell
After area deactivates, UE obtains TA using continuing to send the method for interception reference signal SRS in deactivated predetermined secondary cell,
The predetermined secondary cell includes one below：The secondary cell of the duration of TAT is configured for, any one secondary cell.
11. device according to claim 10, which is characterized in that the uplink sync status maintenance module and described
TAT durations maintenance module is located at base station side or UE sides.
12. device according to claim 10, which is characterized in that further include：
Configuration module, positioned at base station side, for the duration for the respective TAT of each packet configuration, wherein, different grouping
The duration of TAT is identical or different.
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| CN201110226077.7A CN102932900B (en) | 2011-08-08 | 2011-08-08 | The processing method and processing device of time unifying timer in multi-carrier communications systems |
| PCT/CN2012/079819 WO2013020506A1 (en) | 2011-08-08 | 2012-08-08 | Method and device for handling time alignment timer in multi-carrier communication system |
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| CN201110226077.7A CN102932900B (en) | 2011-08-08 | 2011-08-08 | The processing method and processing device of time unifying timer in multi-carrier communications systems |
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| JP2015088997A (en) * | 2013-10-31 | 2015-05-07 | 株式会社Ｎｔｔドコモ | Mobile station |
| CN105871518A (en) * | 2015-01-21 | 2016-08-17 | 夏普株式会社 | Hybrid automatic repeat request (HARQ) entity management method and user equipment |
| CN106941717B (en) * | 2016-01-04 | 2021-02-12 | 中兴通讯股份有限公司 | Fault reporting method and device |
| CN107666704B (en) * | 2016-07-29 | 2019-10-18 | 深圳市中兴微电子技术有限公司 | A kind of method and user equipment of reboot time calibration TA timer |
| CN109716833B (en) | 2017-03-21 | 2020-03-31 | Oppo广东移动通信有限公司 | Method for keeping uplink synchronization of terminal and terminal |
| CN111432422A (en) * | 2019-01-10 | 2020-07-17 | 索尼公司 | Electronic device, wireless communication method, and computer-readable medium |
| US12010639B2 (en) | 2019-07-09 | 2024-06-11 | Nokia Technologies Oy | Secondary cell activation |
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| CN102123406B (en) * | 2010-01-11 | 2015-10-21 | 中兴通讯股份有限公司 | The maintaining method of multicarrier system up link, Apparatus and system |
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