CN103037516A

CN103037516A - Method for grouping servicing cells, user equipment and base station

Info

Publication number: CN103037516A
Application number: CN2011102977417A
Authority: CN
Inventors: 陈中明; 杜忠达; 黄亚达
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2013-04-10
Anticipated expiration: 2031-09-30
Also published as: WO2013044655A1; CN103037516B

Abstract

The invention discloses a method for grouping servicing cells, user equipment and a base station. The method includes: the user equipment transmit grouping adjustment information to the base station, wherein the grouping adjustment information contains information indicating to cut the serving cells to be grouped into the existing time advance (TA) group or information indicating to cut the serving cells to be grouped into a newly built TA group or information indicating that the current grouping of the serving cells to be grouped does not need to be adjusted. The method solves the grouping problem of auxiliary serving cells, enables a terminal to accurately maintain the groups, reduces redundant management expenditure and improves user experience.

Description

A kind of method, subscriber equipment and base station that Serving cell is divided into groups

Technical field

The present invention relates to wireless communication field, relate in particular to a kind of method, subscriber equipment and base station that Serving cell is divided into groups.

Background technology

In LTE (Long Term Evolution, the Long Term Evolution) system, be in the UE (UserEquipment, subscriber equipment) of connected state before sending data to the base station, need uplink synchronous and the down-going synchronous of realization and base station.When UE certain residential quarter was carried out measure after, namely obtained the down-going synchronous with this residential quarter, otherwise, need to carry out the process of similar Cell searching.Uplink synchronous realizes by carrying out random access procedure, in random access procedure, can also get access to transmitting time lead (Time Advance, be called for short TA), TA is mainly used in the moment that UE determines to send data, after UE realizes uplink synchronous, start upstream synchronous timing device (timeAlignmentTimer is referred to as TAT), if UE can receive the Timing Advance that the base station sends to UE before TAT is overtime, then think to keep uplink synchronous between this UE and this base station; Otherwise TAT is overtime, and UE thinks and lose uplink synchronous, lose uplink synchronous after, if also need to send data to the base station, then need again to realize uplink synchronous.Because LTE system small area only has a carrier wave, therefore a terminal only has a TA.

For higher data rate is provided to the mobile subscriber, advanced long-term evolution system (Long TermEvolution Advance, abbreviation LTE-A) carrier aggregation technology (Carrier Aggregation has been proposed, be called for short CA), its objective is as the UE with respective capabilities provides larger broadband, improve the peak rate of UE.Among the LTE, the maximum downstream transmission bandwidth of system's support is 20MHz, carrier aggregation is with two or more component carrier (Component Carriers, abbreviation CC) polymerization gets up to support greater than 20MHz, maximum is no more than the transmission bandwidth of 100MHz, and the sum of initial stage configuration UL CC (upstream components carrier wave) is less than or equal to the sum of DL CC (downlink component carrier).

LTE-A UE with carrier aggregation capacity, transceiving data on a plurality of component carriers simultaneously, the UE that below relates to is the UE with carrier aggregation capacity except specifying.In the LTE-A system, UE can communicate by a plurality of component carriers (such as CC1 and CC2) and base station after entering connected state simultaneously, the base station can or be decided to be approximately UE according to agreement by explicit configuration and specify a principal component carrier wave (Primary Component Carrier, PCC), other component carrier is called auxiliary component carrier (Secondary Component Carrier, SCC).Serving cell on PCC is called main Serving cell (Primary Cell, Pcell), and the Serving cell on SCC is called auxiliary serving cell (SecondaryCell, Scell).Auxiliary serving cell base station after UE enters connected state is the UE configuration.

Generally speaking, Serving cell has symmetrical upstream components carrier wave and downlink component carrier (Scell can a configurating downlink) and at SIB2 (system information block 2, System information block 2) explicitly points out in, interference for fear of control channel, introduced the concept of striding carrier dispatching, namely in the more serious situation of PDCCH (Physical Downlink Control Channel letter) interference ratio of certain Scell, the PDCCH of this Scell does not just enable, but dispatch the PDSCH of this Scell by the another one Serving cell, the another one Serving cell here can pass through RRC (Radio Resource control) signal deployment.The base station only is that a UE distributes a C-RNTI (Cell Radio Network Temporary Identifier/Identity, Cell-RNTI), and namely the C-RNTI of each Serving cell is identical.Each Serving cell has the sign of a configuration, is called the Serving cell sign, and the Serving cell sign of Pcell is fixed as 0.For auxiliary serving cell, also have independent auxiliary serving cell sign, the auxiliary serving cell sign of auxiliary serving cell is identical with corresponding Serving cell sign.

Carrier aggregation initial stage (being Rel10), the number of Scell is fewer as only have 1, and scene is also restricted as not supporting up RRH (Remote radio header, Remote Radio Unit) and repeater (repeater), therefore only there is a TA, UE only need to initiate uplink synchronous at Pcell and get final product, and can not initiate on the Scell.

Follow-up phase (being Rel11), because the lifting of data volume, the number of Scell can increase, as is increased to 4, and scene also can be relaxed, as supports up RRH and repeater, and a TA can not satisfy the demand, and therefore can introduce a plurality of TA.For convenient management, use the Serving cell of identical TA to be included into a TA group for each UE, how to divide into groups to be disposed by RRC.At this moment, the TA group that comprises Pcell only need to be initiated uplink synchronous at Pcell, synchronously after, interior other residential quarters of this group enter synchronous regime automatically.The TA group that does not comprise Pcell, must initiate uplink synchronous at certain Scell, and after activating, this Scell just carries out random access procedure, Scell must just can carry out normal upstream data and send after uplink synchronous is finished, equally, after Scell was synchronous, other residential quarters entered synchronous regime automatically in this group.Be each auxiliary serving cell of UE configuration at present for the base station, how to the auxiliary serving cell grouping, relevant method not yet arranged at present.

Summary of the invention

The technical problem to be solved in the present invention provides a kind of method, subscriber equipment and base station that Serving cell is divided into groups, and can realize auxiliary serving cell is divided into groups.

For solving the problems of the technologies described above, a kind of method that Serving cell is divided into groups of the present invention comprises:

Subscriber equipment sends the grouping adjustment information to the base station, comprise indication in the described grouping adjustment information and will treat that the packet service residential quarter puts the information of existing Timing Advance (TA) group or indication under and will describedly treat that the packet service residential quarter puts information or the indication that newly-built TA organizes under and need not to adjust the information for the treatment of packet service residential quarter current group.

Further, described grouping adjustment information also comprises described cell ID or the auxiliary serving cell sign for the treatment of the packet service residential quarter.

Further, also comprise:

Described subscriber equipment comprises indication with described when treating that the packet service residential quarter puts the information of existing TA group under in described grouping adjustment information, in described grouping information, also comprise the group # for the treatment of the existing TA group that the packet service residential quarter puts under with described, or cell ID or the auxiliary serving cell sign of the Serving cell in the described existing TA group.

Further, also comprise:

Described base station is after receiving described grouping adjustment information, when in described grouping adjustment information, comprising indication and will treat that the packet service residential quarter puts the information of existing TA group under, the described packet service residential quarter for the treatment of is put under in the cell ID of the group # that comprises in the described grouping adjustment information or the Serving cell in the described existing TA group or the existing TA group that the auxiliary serving cell sign is pointed to; When in described grouping adjustment information, comprising indication and will treat that the packet service residential quarter puts the information of newly-built TA group under, will describedly treat that the packet service residential quarter puts under during newly-built TA organizes; In described grouping adjustment information, comprise and indicate when need not to adjust the information for the treatment of packet service residential quarter current group, keep the described packet service residential quarter for the treatment of in current grouping.

Further, when described subscriber equipment in the base station is this user device configuration auxiliary serving cell, or when auxiliary serving cell enters synchronous regime by desynchronizing state, or when the grouping of base station notice auxiliary serving cell need to be adjusted, or when finding that the auxiliary serving cell grouping needs to adjust, described auxiliary serving cell as the described packet service residential quarter for the treatment of, is sent the grouping adjustment information to the base station.

Further, a kind of method that Serving cell is divided into groups comprises:

Subscriber equipment sends the grouping adjustment information to the base station, comprise the difference of the uplink time delay of the Serving cell of selection in the uplink time delay for the treatment of the packet service residential quarter and the existing TA group in the described grouping adjustment information.

Further, described grouping adjustment information also comprises described cell ID or the auxiliary serving cell sign for the treatment of the packet service residential quarter, and/or the cell ID of the Serving cell of selecting in the existing TA group or auxiliary serving cell sign.

Further, also comprise:

Described base station is when receiving described grouping adjustment information, the difference of the uplink time delay of the Serving cell treating to select in the uplink time delay of packet service residential quarter and the existing TA group is compared with the packet threshold that sets in advance, determine the described TA group for the treatment of the packet service residential quarter.

Further, also comprise:

Described subscriber equipment is that the described value of the uplink time delay of packet service residential quarter for the treatment of deducts the result of the value of the uplink time delay of the Serving cell of selection in the described existing TA group with the difference of described uplink time delay also, or the value of the uplink time delay of the Serving cell of selecting in the described existing TA group deducts the result of the value of the described uplink time delay for the treatment of the packet service residential quarter, and notice is to the base station;

Described base station is according to the notice of described subscriber equipment, and the difference of described uplink time delay is compared with corresponding packet threshold, determines the described TA group for the treatment of the packet service residential quarter.

Further, to determine that the described TA group for the treatment of the packet service residential quarter comprises one of following at least in described base station:

Described base station is in described difference during less than described packet threshold, determines describedly to treat that the packet service residential quarter puts under during described existing TA organizes;

During greater than described packet threshold, determine that the described packet service residential quarter for the treatment of puts newly-built TA group under in described difference;

When described difference equals described packet threshold, determine the described packet service residential quarter for the treatment of is put under in described existing TA group or the newly-built TA group.

Further, a kind of method that Serving cell is divided into groups comprises:

Subscriber equipment comprises current TA and the described descending time delay difference for the treatment of the Serving cell of selection in packet service residential quarter and the described existing TA group of the current TA that treats the packet service residential quarter, existing TA group to base station transmission grouping adjustment information in the described grouping adjustment information.

Further, also comprise:

Described descending time delay difference is that the described value of the descending time delay of packet service residential quarter for the treatment of deducts the result of the value of the descending time delay of the Serving cell of selection in the described existing TA group;

After described base station receives described grouping adjustment information, get value that the described value for the treatment of the current TA of packet service residential quarter deducts the current TA of described existing TA group and deduct the result of described descending time delay difference, difference as the uplink time delay of the Serving cell in the described uplink time delay for the treatment of the packet service residential quarter and the existing TA group, the difference of described uplink time delay is compared with the packet threshold that sets in advance, determine the described TA group for the treatment of the packet service residential quarter.

Further, also comprise:

Described descending time delay difference is the result that the value of the descending time delay of the Serving cell selected in the described existing TA group deducts the value of the described descending time delay for the treatment of the packet service residential quarter;

After described base station receives described grouping adjustment information, the value of getting the current TA of described existing TA group deducts the described value of the current TA of packet service residential quarter for the treatment of and deducts the result of described descending time delay difference, difference as the uplink time delay of the Serving cell in the described uplink time delay for the treatment of the packet service residential quarter and the existing TA group, the difference of described uplink time delay is compared with the packet threshold that sets in advance, determine the described TA group for the treatment of the packet service residential quarter.

Further, a kind of method that Serving cell is divided into groups comprises:

Report detection information to described base station on the Serving cell that the base station equipment for indicating user is selected in treating packet service residential quarter and existing TA group;

Described subscriber equipment to described base station reports detection information simultaneously according to the indication of described base station on the described Serving cell for the treatment of to select in packet service residential quarter and the existing TA group;

The described group result for the treatment of the packet service residential quarter is determined according to the time that receives described detection information in described base station.

Further, the described group result for the treatment of the packet service residential quarter is determined according to receiving described detection information time in described base station, comprising:

Described base station will treat that packet service the residential quarter time that receives described detection information and the time that the Serving cell of selecting receives described detection information subtracts each other from described from described existing TA group, obtain the difference of the uplink time delay of the Serving cell selected in the described uplink time delay for the treatment of the packet service residential quarter and the existing TA group, the difference of described uplink time delay is compared with the packet threshold that sets in advance, determine the described TA group for the treatment of the packet service residential quarter.

Further, a kind of subscriber equipment comprises: information determining unit and information transmitting unit, wherein:

Described information determining unit, be used for treating the packet service residential quarter and determine the grouping adjustment information, comprise indication in the described grouping adjustment information and will treat that the packet service residential quarter puts the information of existing Timing Advance (TA) group or indication under and will describedly treat that the packet service residential quarter puts information or the indication that newly-built TA organizes under and need not to adjust the information for the treatment of packet service residential quarter current group;

Described information transmitting unit is used for to base station transmission grouping adjustment information.

Further, described information determining unit, also be used for when described grouping adjustment information comprises indication and will describedly treat that the packet service residential quarter puts the information that existing TA organizes under, in described grouping information, also comprise the group # for the treatment of the existing TA group that the packet service residential quarter puts under with described, or cell ID or the auxiliary serving cell sign of the Serving cell in the described existing TA group.

Further, a kind of base station based on above-mentioned subscriber equipment comprises: information receiving unit and grouping adjustment unit, wherein:

Described information receiving unit is used for receiving the grouping adjustment information;

Described grouping adjustment unit, be used for when described grouping adjustment information comprises indication and will treat that the packet service residential quarter puts the information of existing TA group under, the described packet service residential quarter for the treatment of is put under in the cell ID of the group # that comprises in the described grouping adjustment information or the Serving cell in the described existing TA group or the existing TA group that the auxiliary serving cell sign is pointed to; In described grouping adjustment information, comprise and indicate when need not to adjust the information for the treatment of packet service residential quarter current group, keep the described packet service residential quarter for the treatment of in current grouping.

Described information determining unit is used for treating the packet service residential quarter and determines the grouping adjustment information, comprises the difference of the uplink time delay of the Serving cell of selection in the uplink time delay for the treatment of the packet service residential quarter and the existing TA group in the described grouping adjustment information;

Described grouping adjustment unit is used for treating that the uplink time delay of packet service residential quarter and the difference of the uplink time delay that existing TA organizes the Serving cell of selecting compare with the packet threshold that sets in advance, and determines the described TA group for the treatment of the packet service residential quarter.

Described information determining unit, be used for treating the definite grouping in packet service residential quarter adjustment information, comprise current TA and the described descending time delay difference for the treatment of the Serving cell of selection in packet service residential quarter and the described existing TA group of the current TA that treats the packet service residential quarter, existing TA group in the described grouping adjustment information;

Described grouping adjustment unit, be used for described descending time delay difference be the described value for the treatment of the descending time delay of the packet service residential quarter descending time delay that deducts the Serving cell that described existing TA group selects value as a result the time, get value that the described value for the treatment of the current TA of packet service residential quarter deducts the current TA of described existing TA group and deduct the result of described descending time delay difference, difference as the uplink time delay of the Serving cell in the described uplink time delay for the treatment of the packet service residential quarter and the existing TA group, the difference of described uplink time delay is compared with the packet threshold that sets in advance, determine the described TA group for the treatment of the packet service residential quarter.

Further, a kind of base station comprises: detect information trigger element and grouping adjustment unit, wherein:

Described detection information trigger element is used to indicate on the Serving cell that subscriber equipment selects in treating packet service residential quarter and existing TA group and reports detection information to described base station;

Described grouping adjustment unit is used for determining the described group result for the treatment of the packet service residential quarter according to the time that receives described detection information.

Further, a kind of subscriber equipment based on above-mentioned base station comprises: signaling receiving element and detection information transmitting unit, wherein:

Described signaling receiving element is used for receiving the base station indication in the instruction for the treatment of to report to described base station simultaneously on the Serving cell that packet service residential quarter and existing TA group is selected detection information;

Described inspection message transmitting element is used for to described base station reporting detection information simultaneously described treating on the Serving cell that packet service residential quarter and existing TA group select.

In sum, the invention solves the grouping problem to auxiliary serving cell, make terminal can safeguard exactly each grouping, reduce redundant administration overhead, improve the user and experience.

Description of drawings

The flow chart of Fig. 1 method one that to be the present invention divide into groups to Serving cell;

The flow chart of Fig. 2 method two that to be the present invention divide into groups to Serving cell;

The flow chart of example 1～6 is used in Fig. 3～8 for the present invention;

Fig. 9 is the Organization Chart of the subscriber equipment of embodiment of the present invention;

Figure 10 is the Organization Chart of the base station of embodiment of the present invention;

Figure 11 is the Organization Chart of the subscriber equipment of another embodiment of the present invention;

Figure 12 is the Organization Chart of the base station of another embodiment of the present invention.

Embodiment

Can adopt following two kinds of methods that auxiliary serving cell is divided into groups in the present embodiment.

Method one:

Current is Pcell for UE disposes Cell1, belongs to group 0, for compatible with Rel10, can think to be defaulted as group 0 this moment, namely not need the explicit configuration of RRC, suppose that the base station is UE configuration auxiliary serving cell Cell2, Cell2 is as treating the packet service residential quarter, and as shown in Figure 1, the method comprises:

Step 101: the base station is UE configuration auxiliary serving cell Cell2, Cell2 is set belongs to group 2;

Step 102: Cell2 is activated by the MAC signaling in the base station;

Step 103: base station indication UE obtains the TA on the Cell2, and notice need to report the grouping adjustment information of Cell2;

Step 104:UE obtains the process of TA by random access procedure or other, obtain the TA on Cell2 and the Cell1, obtain the difference of the uplink time delay of Cell2 and Cell1 according to the TA on Cell2 and the Cell1, determine the grouping adjustment result of Cell2 according to the difference of uplink time delay, obtain the adjustment information of dividing into groups, the adjustment information of will dividing into groups informing base station.

Subscriber equipment during less than packet threshold, determines to treat that packet service residential quarter Cell2 puts under in the existing TA group (group 0) in difference; During greater than packet threshold, determine that Cell2 puts newly-built TA group under in difference; When described difference equaled packet threshold, definite Cell2 is put under in existing TA group or the newly-built TA group all could.

The grouping adjustment information comprises indication will treat that the packet service residential quarter puts information or the indication that the information of existing TA group or indication will treat that the packet service residential quarter puts newly-built TA group under under and need not to adjust the information for the treatment of packet service residential quarter current group.Subscriber equipment comprises cell ID or the auxiliary serving cell sign for the treatment of the packet service residential quarter in the grouping adjustment information, and/or the cell ID of the Serving cell of selecting in the existing TA group or auxiliary serving cell sign, and when comprising indication and will treat that the packet service residential quarter puts the information of existing TA group under, in the grouping adjustment information, also comprise and will treat the group # of the existing TA group that the packet service residential quarter puts under, or the cell ID of certain Serving cell in the existing TA group or auxiliary serving cell sign.

Step 105: the information that the base station provides according to UE, determine whether adjust the grouping of Cell2, if do not need to adjust the grouping of Cell2, then finish; If need to adjust the grouping of Cell2, then revise the grouping of Cell2.

The base station is after receiving the grouping adjustment information, when grouping comprises indication in the adjustment information and will treat that the packet service residential quarter puts the information of existing TA group under, will treat that the packet service residential quarter puts under in the cell ID of the group # that comprises in the grouping adjustment information or the Serving cell in the existing TA group or the existing TA group that the auxiliary serving cell sign is pointed to; When grouping comprises indication in the adjustment information and will treat that the packet service residential quarter puts the information of newly-built TA group under, will treat that the packet service residential quarter puts under in the newly-built TA group; In the grouping adjustment information, comprise and indicate when need not to adjust the information for the treatment of packet service residential quarter current group, keep and treat that the packet service residential quarter is in current grouping.

Subscriber equipment is except being this user device configuration auxiliary serving cell in the base station, when auxiliary serving cell enters synchronous regime by desynchronizing state, when the grouping of base station notice auxiliary serving cell need to be adjusted, when finding that the auxiliary serving cell grouping needs to adjust, will be all with auxiliary serving cell as treating the packet service residential quarter, send the adjustment information of dividing into groups to the base station.

Treat that the packet service residential quarter is that the base station is the auxiliary serving cell in the existing TA group of the newly assigned auxiliary serving cell of subscriber equipment or subscriber equipment.

Moreover, subscriber equipment also can comprise in grouping the difference of the uplink time delay of the Serving cell of selection in the uplink time delay for the treatment of the packet service residential quarter and the existing TA group in the adjustment information, that is: with the difference informing base station of the uplink time delay of the uplink time delay of Cell2 and Cell1.

The difference of uplink time delay is to treat that the value of the uplink time delay of packet service residential quarter deducts the result of the value of the uplink time delay of the Serving cell of selection in the existing TA group; Or deduct the result of the value of the uplink time delay for the treatment of the packet service residential quarter for the value of the uplink time delay of the Serving cell selected in the existing TA group.Subscriber equipment also will be to treat that the value of the uplink time delay of packet service residential quarter deducts the result of the value of the uplink time delay of the Serving cell of selection in the existing TA group with the difference of uplink time delay, or the value of the uplink time delay of the Serving cell of selecting in the existing TA group deducts the result of the value of the uplink time delay for the treatment of the packet service residential quarter, notice is to the base station, the difference of these two kinds of uplink time delays can corresponding different packet threshold, and corresponding packet threshold is adopted according to the notice of subscriber equipment in the base station; Perhaps the difference of the difference of uplink time delay acquiescence selection uplink time delay is to treat that the value of the uplink time delay of packet service residential quarter deducts the result of the value of the uplink time delay of the Serving cell of selection in the existing TA group; Perhaps the difference of uplink time delay acquiescence selects the value of the uplink time delay of the Serving cell of selection in the existing TA group to deduct the result of the value of the uplink time delay for the treatment of the packet service residential quarter.

The base station will treat that the difference of the uplink time delay of the Serving cell selected in the uplink time delay of packet service residential quarter and the existing TA group compares with the packet threshold that sets in advance, and determines the described TA group for the treatment of the packet service residential quarter.The base station during less than packet threshold, determines to treat that the packet service residential quarter puts under in the existing TA group in difference; During greater than packet threshold, determine to treat that the packet service residential quarter puts newly-built TA group under in difference; When difference equals packet threshold, determine to treat that the packet service residential quarter puts under in existing TA group or the newly-built TA group all can.

Subscriber equipment can also grouping comprise the current TA of the current TA that treats the packet service residential quarter, existing TA group in the adjustment information and treat the packet service residential quarter with existing TA group in the descending time delay difference of Serving cell of selection, that is: the difference of the descending time delay of the descending time delay of the current TA of Cell1 and Cell2 and Cell2 and Cell1.

Descending time delay difference be the described value for the treatment of the descending time delay of the packet service residential quarter descending time delay that deducts the Serving cell of selecting in the described existing TA group value as a result the time, after the base station receives the grouping adjustment information, get value that the described value for the treatment of the current TA of packet service residential quarter deducts the current TA of described existing TA group and deduct the result of described descending time delay difference, difference as the uplink time delay of the Serving cell in the described uplink time delay for the treatment of the packet service residential quarter and the existing TA group, the difference of described uplink time delay is compared with the packet threshold that sets in advance, determine the described TA group for the treatment of the packet service residential quarter.

Be the result that the value of the descending time delay of the Serving cell selected in the described existing TA group deducts the value of the described descending time delay for the treatment of the packet service residential quarter in descending time delay difference; After the base station receives described grouping adjustment information, the value of getting the current TA of described existing TA group deducts the described value of the current TA of packet service residential quarter for the treatment of and deducts the result of described descending time delay difference, difference as the uplink time delay of the Serving cell in the described uplink time delay for the treatment of the packet service residential quarter and the existing TA group, the difference of described uplink time delay is compared with the packet threshold that sets in advance, determine the described TA group for the treatment of the packet service residential quarter.

Method two:

As shown in Figure 2, send detection information at the Serving cell of appointment simultaneously by UE, such as SRS (Sounding Reference Symbols, sounding reference symbol), decide group result by the base station, current is Pcell for UE has disposed Cell1, belong to group 0, for compatible with Rel10, can think to be defaulted as group 0 this moment, namely do not need the explicit configuration of RRC, the method comprises:

Step 201: the base station is UE configuration Cell2, belongs to group 1;

Step 202: base station activation Cell2;

Step 203: base station notice UE sends SRS at Cell1 and Cell2 simultaneously;

Step 204: the group result of Cell2 is determined according to the time of receiving SRS at Cell1 and Cell2 in the base station;

The base station will be subtracted each other from the time that described Cell2 receives described detection information and the time that receives described detection information from Cell1, obtain the difference of the uplink time delay of the uplink time delay of Cell2 and Cell1, the difference of uplink time delay is compared with the packet threshold that sets in advance, determine the TA group of Cell2.

Step 205: if do not need to adjust, process leaves it at that, if need to adjust, the base station is with the grouping adjustment of Cell2.

The below is described in further detail the enforcement of technical scheme.

Supposing that in the LTE-A system base station is the base station with carrier aggregation capacity, administer four residential quarters, is respectively Cell1, Cell2, Cell3 and Cell4.The ability that partly or entirely can provide carrier aggregation to subscriber equipment in these four residential quarters is with the bandwidth of expansion transmission.User equipment (UE) 1 has accessed network (or network switches to UE1 the Cell1 of base station) by the Cell1 of base station, Cell1 provides NAS (Non-Access Stratum for UE1, Non-Access Stratum) layer-two mobility information, such as PLMN (Public LandMobile Network, public land mobile network), the information such as global cell identity CGI, Location Area Identification TAC, be the main Serving cell (Pcell) of UE1, UE1 receives only system message and the beep-page message of main Serving cell.Cell1 and Cell2 are common residential quarters, and Cell3 is the RRH residential quarter, and Cell4 has disposed repeater.The Serving cell sign of Cell1, Cell2, Cell3 and Cell4 is respectively 0,1,2,3.These three residential quarters that the residential quarter is FDD, for the residential quarter of TDD, flow process is identical, no longer is repeated in this description herein.

Embodiment 1:

Give tacit consent to current Pcell and be group 0, as shown in Figure 3.

Step 1: the base station disposes Cell2 as auxiliary serving cell according to the ability of UE1 for it, and the Serving cell of Cell2 sign is 1, is included into group 1;

Step 2: base station activation Cell2;

Step 3: the base station notification terminal obtains the TA of Cell2, can carry out random access procedure at Cell2, or obtains the process of TA, and notice need to report the grouping adjustment information of Cell2;

Step 4: after terminal obtains the TA of Cell2, calculate the difference of the uplink time delay of Cell1 and Cell2;

Step 5: terminal is according to result of calculation, informing base station, Cell2 can be included into group 0, namely need to adjust grouping, cell ID such as Cell2 that notification message can comprise the needs adjustment are 1, can also comprise grouping after the adjustment as organizing 0, perhaps organize the 0 cell ID present embodiment that comprises and be Pcell namely 0;

Step 6: the base station determines Cell2 is included into group 0, by RRC reallocation message notification terminal.

Above-mentioned steps five also can be by MAC signaling terminal adjustment grouping.

Above-mentioned steps one, base station also can be included into Cell2 group 0, and afterwards in step 5, terminal is according to result of calculation, and informing base station keeps the current grouping of Cell2, does not namely need to adjust grouping.

Embodiment 2:

Current terminal is carried out polymerization with Cell1 and Cell2, Cell1 be Pcell belong to the group 0, Cell2 belong to the group 0, as shown in Figure 4.

Step 1: because traffic carrying capacity increases, the base station disposes Cell3 as auxiliary serving cell according to the ability of UE1 for it, and the auxiliary serving cell of Cell3 sign is 2, is included into group 1;

Step 2: base station activation Cell3;

Step 3: the TA that the base station notification terminal obtains Cell3 carry out random access procedure at Cell3, or obtain the process of TA, and notice need to report the grouping adjustment information of Cell3;

Step 4: after terminal obtains the TA of Cell3, calculate the difference of the uplink time delay of Cell1 and Cell3, because Cell2 and Cell1 belong to same group, therefore terminal also can be calculated the difference of the uplink time delay of Cell2 and Cell3, perhaps calculates simultaneously the difference of the uplink time delay of the difference of uplink time delay of Cell1 and Cell3 and Cell2 and Cell3;

Step 5: terminal is according to result of calculation, and informing base station keeps current packet mode.

In the present embodiment, also can configured in advance Cell3, in step 1, because traffic carrying capacity increases, need to activate Cell3, then continue follow-up flow process.

Above-mentioned steps one, base station also can be included into Cell2 group 0, and afterwards in step 5, terminal is according to result of calculation, and informing base station can not be included into Cell2 group 0, namely needs to distribute new TA group as group 1 to Cell2.

Embodiment 3:

Current terminal is carried out polymerization with Cell1, Cell2 and Cell3, Cell1 be Pcell belong to the group 0, Cell2 belong to the group 0, Cell3 belong to the group 1, as shown in Figure 4.

Step 1: because traffic carrying capacity increases, the base station disposes Cell4 as auxiliary serving cell according to the ability of UE1 for it, and the auxiliary serving cell of Cell4 sign is 3, is included into group 2;

Step 2: base station activation Cell4;

Step 3: the TA that the base station notification terminal obtains Cell4 carry out random access procedure at Cell4, or obtain the process of TA, and notice need to report the grouping adjustment information of Cell4;

Step 4: after terminal obtains the TA of Cell4, calculate Cell1 and Cell4, and the difference of the uplink time delay of Cell3 and Cell4, can also calculate the uplink time delay difference of Cell2 and Cell4;

Step 5: terminal is according to result of calculation, and informing base station keeps current packet mode;

Step 6: terminal shifts out the coverage of repeater among the Cell4, and the grouping of Cell4 can be found to need to adjust by the SRS on the Cell4 in the base station, and notification terminal need to report the grouping adjustment information of Cell4; Perhaps terminal is monitored Cell1 and Cell4 always, and the uplink time delay of Cell3 and Cell4 is poor, and the uplink time delay that can also detect Cell2 and Cell4 is poor, sends the grouping adjustment information when grouping of finding Cell4 need to be adjusted to the base station;

If terminal shifts out the coverage of repeater among the Cell4, so that losing uplink synchronous, Cell4 enters desynchronizing state, then need to re-start uplink synchronous and enter synchronous regime, obtain current TA, then continue subsequent step.

Step 7: terminal is calculated Cell1 and Cell4, and the difference of the uplink time delay of Cell3 and Cell4, and the uplink time delay that can also calculate Cell2 and Cell4 is poor;

Step 8: terminal is according to result of calculation, and informing base station can be included into Cell3 group 0, can comprise Serving cell sign or the auxiliary serving cell sign of Cell3;

Step 9: the base station determines Cell4 is included into group 0, by RRC reallocation message notification terminal.

If Cell4 has been in deactivation status in the time of execution in step six, need to activate first, then carry out subsequent process.

Above-mentioned steps five and step 8, terminal is directly informing base station Cell1 and Cell4 also, and the difference of the uplink time delay of Cell3 and Cell4, the uplink time delay difference that can also comprise Cell2 and Cell4, the difference that is the uplink time delay of informing base station Cell1 and Cell4 is the uplink time delay of uplink time delay-Cell4 of Cell1, it perhaps is the uplink time delay of uplink time delay-Cell1 of Cell4, cell ID or the auxiliary serving cell sign that can also comprise Cell1 and Cell4, can also comprise is the uplink time delay that the uplink time delay of Cell1 subtracts Cell4, or the uplink time delay of Cell4 subtracts the uplink time delay of Cell1, and the uplink time delay of Cell3 and Cell4 is poor, cell ID or the auxiliary serving cell sign that can also comprise Cell3 and Cell4, the uplink time delay that can also comprise Cell2 and Cell4 is poor, can also comprise cell ID or the auxiliary serving cell sign of Cell2 and Cell4;

Perhaps, UE is with Cell1, the TA value of Cell3 and the grouping of Cell4 place, and Cell1 and Cell4, and the descending time delay difference informing base station of Cell3 and Cell4, the TA value that can also comprise the grouping of Cell2 place, the descending time delay difference that can also comprise Cell2 and Cell4, it is the TA value of informing base station Cell1 place grouping, the cell ID that can also comprise Cell1, the TA value of Cell3 place grouping, cell ID or the auxiliary serving cell sign that can also comprise Cell3, the TA value of Cell4 place grouping, cell ID or the auxiliary serving cell sign that can also comprise Cell4, the TA value that can also comprise the grouping of Cell2 place, cell ID or the auxiliary serving cell sign that can also comprise Cell2, the descending time delay of descending time delay-Cell4 that the descending time delay difference of Cell1 and Cell4 is Cell1, it perhaps is the descending time delay of descending time delay-Cell1 of Cell4, cell ID or the auxiliary serving cell sign that can also comprise Cell1 and Cell4, can also comprise is the descending time delay that the descending time delay of Cell1 subtracts Cell4, or the descending time delay of Cell4 subtracts the descending time delay of Cell1, and the descending delay inequality of Cell3 and Cell4, can also comprise the cell ID of Cell3 and Cell4 or auxiliary serving cell sign etc., the descending delay inequality that can also comprise Cell2 and Cell4 can also comprise the cell ID of Cell2 and Cell4 or auxiliary serving cell sign etc.

The base station determines the grouping of Cell4, and the difference of the uplink time delay of Serving cell is compared with the packet threshold that sets in advance, and determines the described TA group for the treatment of the packet service residential quarter.The difference of uplink time delay can obtain by calculating, namely the TA value of two Serving cell place groupings is subtracted each other the descending delay inequality that deducts again these two Serving cells, the TA that the TA value of two Serving cell places grouping is kept to first Serving cell mutually deducts the TA of second Serving cell, the descending delay inequality of two Serving cells is the downgoing time of downgoing time-second Serving cell of first Serving cell, described first Serving cell can be Cell1, second Serving cell can be Cell4, perhaps first Serving cell can be Cell4, and second Serving cell can be Cell1.

If the uplink time delay of two Serving cells is poor during less than described packet threshold, these two Serving cells can be included into same group of unified management, the uplink time delay of two Serving cells is poor during greater than described packet threshold, these two Serving cells need separate management, if the uplink time delay of two Serving cells is poor when equaling described packet threshold, these two Serving cells separately or unified management can.

Embodiment 4:

Give tacit consent to current Pcell and be group 0, as shown in Figure 6.

Step 1: base station 1 disposes Cell2 as auxiliary serving cell according to the ability of UE1 for it, and the Serving cell of Cell2 sign is 1, is included into group 1;

Step 2: base station activation Cell2;

Step 3: the base station notification terminal sends SRS at Cell1 and Cell2 simultaneously, and upper parameter such as the time-frequency domain resources that sends SRS of Cell1 and Cell2 can be indicated respectively, perhaps is designated as same;

Step 4: terminal is according to the indication of base station, perhaps according to default rule, with Pcell as time reference, or respectively with SIB2 indication descending such as Cell1 and Cell2 as time reference, send the SRS of Cell1 and Cell2 in the time-frequency domain resources of appointment, when sending SRS, the TA of Cell1 and Cell2 is set to 0 temporarily, after sending, recover original value;

Step 5: the base station is according to the time of receiving SRS at Cell1 and Cell2, calculate the difference (being that the difference that sends to the time of SRS on Cell1 and the Cell2 is received in the base station) of the uplink time delay of Cell1 and Cell2, determine grouping adjustment result according to this difference, Cell2 is included into group 0;

Step 6: the grouping of Cell2 is adjusted in the base station by the RRC reprovision.

Embodiment 5:

Current terminal is carried out polymerization with Cell1 and Cell2, Cell1 be Pcell belong to the group 0, Cell2 belong to the group 0, as shown in Figure 7.

Step 2: base station activation Cell3;

Step 3: the base station notification terminal sends SRS at Cell1 and Cell3 simultaneously, and upper parameter such as the time-frequency domain resources that sends SRS of Cell1 and Cell3 can be indicated respectively, perhaps is designated as same;

Because Cell1 and Cell2 belong to same group, also can send SRS at Cell2 and Cell3 simultaneously by notification terminal.

Step 4: terminal is according to the indication of base station, perhaps according to default rule, with Pcell as time reference, or respectively with SIB2 indication descending such as Cell1 and Cell3 as time reference, send the SRS of Cell1 and Cell3 in the time-frequency domain resources of appointment, when sending SRS, the TA of Cell1 and Cell3 is set to 0 temporarily, after sending, recover original value;

Step 5: the difference of the uplink time delay of Cell1 and Cell3 is calculated according to the time of receiving SRS at Cell1 and Cell3 in the base station, determines that according to this difference grouping adjusts the result, keeps current packet mode.

Embodiment 6:

Current terminal is carried out polymerization with Cell1, Cell2 and Cell3, Cell1 be Pcell belong to the group 0, Cell2 belong to the group 0, Cell3 belong to the group 1, as shown in Figure 8.

Step 2: base station activation Cell4;

Step 3: the base station notification terminal sends SRS at Cell1, Cell3 and Cell4 simultaneously, and upper parameter such as the time-frequency domain resources that sends SRS of Cell1, Cell3 and Cell4 can be indicated respectively, perhaps is designated as same;

Step 4: terminal is according to the indication of base station, perhaps according to default rule, with Pcell as time reference, or respectively with SIB2 indication descending such as Cell1, Cell3 and Cell4 as time reference, send the SRS of Cell1, Cell3 and Cell4 in the time-frequency domain resources of appointment, when sending SRS, the TA of Cell1, Cell3 and Cell4 is set to 0 temporarily, after sending, recover original value;

Step 5: Cell1 and Cell4 are calculated according to the time of receiving SRS at Cell1, Cell3 and Cell4 in the base station, and the difference of the uplink time delay of Cell3 and Cell4 determines that according to these differences grouping adjusts the result, keeps current packet mode;

Step 6: terminal shifts out the coverage of repeater among the Cell4, and the grouping of Cell4 can be found to need to adjust by the SRS on the Cell4 in the base station, and notification terminal sends SRS at Cell1, Cell3 and Cell4 simultaneously again;

Step 7: terminal is according to the indication of base station, perhaps according to default rule, with Pcell as time reference, or respectively with SIB2 indication descending such as Cell1, Cell3 and Cell4 as time reference, send the SRS of Cell1, Cell3 and Cell4 in the time-frequency domain resources of appointment, when sending SRS, the TA of Cell1, Cell3 and Cell4 is set to 0 temporarily, after sending, revert to original value;

Step 8: Cell1 and Cell4 are calculated according to the time of receiving SRS at Cell1, Cell3 and Cell4 in the base station, the difference of the uplink time delay of Cell3 and Cell4,, determine to draw grouping according to these differences and adjust the result, Cell4 is included into group 0;

Step 9: the grouping of Cell4 is adjusted in the base station by the RRC reprovision.

If Cell4 has been in deactivation status in the time of execution in step five, need to activate first, then carry out subsequent process.

Fig. 9 is the subscriber equipment of present embodiment, comprising: information determining unit and information transmitting unit, wherein:

The information determining unit, be used for treating the packet service residential quarter and determine the grouping adjustment information, comprise indication in the grouping adjustment information and will treat that the packet service residential quarter puts information or the indication that the information of existing Timing Advance (TA) group or indication will treat that the packet service residential quarter puts newly-built TA group under under and need not to adjust the information for the treatment of packet service residential quarter current group;

Information transmitting unit is used for to base station transmission grouping adjustment information.

The information determining unit, also be used for when the grouping adjustment information comprises indication and will treat that the packet service residential quarter puts the information of existing TA group under, in grouping information, also comprise and will treat the group # of the existing TA group that the packet service residential quarter puts under, or the cell ID of the Serving cell in the existing TA group or auxiliary serving cell sign.

Figure 10 is the base station based on above-mentioned subscriber equipment, comprising: information receiving unit and grouping adjustment unit, wherein:

Information receiving unit is used for receiving the grouping adjustment information;

The grouping adjustment unit, be used for when the grouping adjustment information comprises indication and will treat that the packet service residential quarter puts the information of existing TA group under, will treat that the packet service residential quarter puts under in the cell ID of the group # that comprises in the grouping adjustment information or the Serving cell in the existing TA group or the existing TA group that the auxiliary serving cell sign is pointed to; In the grouping adjustment information, comprise and indicate when need not to adjust the information for the treatment of packet service residential quarter current group, keep and treat that the packet service residential quarter is in current grouping.

In another embodiment, subscriber equipment comprises: information determining unit and information transmitting unit, wherein:

The information determining unit is used for treating the packet service residential quarter and determines the grouping adjustment information, comprises the difference of the uplink time delay of the Serving cell of selection in the uplink time delay for the treatment of the packet service residential quarter and the existing TA group in the grouping adjustment information;

The base station comprises: information receiving unit and grouping adjustment unit, wherein:

The grouping adjustment unit is used for treating that the uplink time delay of packet service residential quarter and the difference of the uplink time delay that existing TA organizes the Serving cell of selecting compare with the packet threshold that sets in advance, and determines to treat the TA group of packet service residential quarter.

The information determining unit, be used for treating the packet service residential quarter and determine the grouping adjustment information, comprise the current TA of the current TA that treats the packet service residential quarter, existing TA group in the grouping adjustment information and treat the packet service residential quarter with existing TA group in the descending time delay difference of Serving cell of selection;

The grouping adjustment unit, be used for descending time delay difference be the value for the treatment of the descending time delay of the packet service residential quarter descending time delay that deducts the Serving cell that existing TA group selects value as a result the time, the value that the value of getting the current TA that treats the packet service residential quarter deducts the current TA of existing TA group deducts the result of descending time delay difference, difference as the uplink time delay of the Serving cell in the uplink time delay for the treatment of the packet service residential quarter and the existing TA group, the difference of uplink time delay is compared with the packet threshold that sets in advance, determine to treat the TA group of packet service residential quarter; Perhaps, the value of the descending time delay of the Serving cell of selecting in for existing TA group in descending time delay difference deduct the descending time delay for the treatment of the packet service residential quarter value as a result the time, the value that the value of getting the current TA of existing TA group deducts the current TA that treats the packet service residential quarter deducts the result of descending time delay difference, difference as the uplink time delay of the Serving cell in the uplink time delay for the treatment of the packet service residential quarter and the existing TA group, the difference of uplink time delay is compared with the packet threshold that sets in advance, determine to treat the TA group of packet service residential quarter.

Figure 11 is a kind of base station of present embodiment, comprising: detect information trigger element and grouping adjustment unit, wherein:

Detection information trigger element is used to indicate on the Serving cell that subscriber equipment selects in treating packet service residential quarter and existing TA group and reports detection information to the base station;

The grouping adjustment unit is used for determining to treat the group result of packet service residential quarter according to the time that receives detection information.

Figure 12 is the subscriber equipment based on above base station, comprising: signaling receiving element and detection information transmitting unit, wherein:

The signaling receiving element is used for receiving the base station indication in the instruction for the treatment of to report to the base station simultaneously on the Serving cell that packet service residential quarter and existing TA group is selected detection information;

The inspection message transmitting element is used for treating to report simultaneously detection information on the Serving cell that packet service residential quarter and existing TA group is selected to the base station.

The above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.

Claims

1. the method that Serving cell is divided into groups is characterized in that, comprising:

2. the method for claim 1 is characterized in that: described grouping adjustment information also comprises described cell ID or the auxiliary serving cell sign for the treatment of the packet service residential quarter.

3. the method for claim 1 is characterized in that, also comprises:

4. method as claimed in claim 3 is characterized in that, also comprises:

5. the method for claim 1 is characterized in that:

When described subscriber equipment in the base station is this user device configuration auxiliary serving cell, or when auxiliary serving cell enters synchronous regime by desynchronizing state, or when the grouping of base station notice auxiliary serving cell need to be adjusted, or when finding that the auxiliary serving cell grouping needs to adjust, described auxiliary serving cell as the described packet service residential quarter for the treatment of, is sent the grouping adjustment information to the base station.

6. the method that Serving cell is divided into groups is characterized in that, comprising:

7. method as claimed in claim 6 is characterized in that:

Described grouping adjustment information also comprises described cell ID or the auxiliary serving cell sign for the treatment of the packet service residential quarter, and/or the cell ID of the Serving cell of selecting in the existing TA group or auxiliary serving cell sign.

8. method as claimed in claim 6 is characterized in that, also comprises:

9. method as claimed in claim 8 is characterized in that, also comprises:

10. method as claimed in claim 9 is characterized in that, it is one of following at least that described base station determines that the described TA group for the treatment of the packet service residential quarter comprises:

11. the method that Serving cell is divided into groups is characterized in that, comprising:

12. method as claimed in claim 11 is characterized in that:

13. method as claimed in claim 11 is characterized in that, also comprises:

14. method as claimed in claim 11 is characterized in that, also comprises:

15. the method that Serving cell is divided into groups is characterized in that, comprising:

16. method as claimed in claim 15 is characterized in that, the described group result for the treatment of the packet service residential quarter is determined according to receiving described detection information time in described base station, comprising:

17. a subscriber equipment is characterized in that, comprising: information determining unit and information transmitting unit, wherein:

18. subscriber equipment as claimed in claim 17 is characterized in that:

Described information determining unit, also be used for when described grouping adjustment information comprises indication and will describedly treat that the packet service residential quarter puts the information that existing TA organizes under, in described grouping information, also comprise the group # for the treatment of the existing TA group that the packet service residential quarter puts under with described, or cell ID or the auxiliary serving cell sign of the Serving cell in the described existing TA group.

19. the base station based on the subscriber equipment of claim 18 is characterized in that, comprising: information receiving unit and grouping adjustment unit, wherein:

20. a subscriber equipment is characterized in that, comprising: information determining unit and information transmitting unit, wherein:

21. the base station based on the subscriber equipment of claim 13 is characterized in that, comprising: information receiving unit and grouping adjustment unit, wherein:

22. a subscriber equipment is characterized in that, comprising: information determining unit and information transmitting unit, wherein:

23. the base station based on the subscriber equipment of claim 13 is characterized in that, comprising: information receiving unit and grouping adjustment unit, wherein:

24. a base station is characterized in that, comprising: detect information trigger element and grouping adjustment unit, wherein:

25. the subscriber equipment based on the base station of claim 19 is characterized in that, comprising: signaling receiving element and detection information transmitting unit, wherein: