CN103493539A - Communication method, base station and user equipment - Google Patents

Communication method, base station and user equipment Download PDF

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Publication number
CN103493539A
CN103493539A CN201180070282.7A CN201180070282A CN103493539A CN 103493539 A CN103493539 A CN 103493539A CN 201180070282 A CN201180070282 A CN 201180070282A CN 103493539 A CN103493539 A CN 103493539A
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base station
tti
sfn
dst
time interval
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CN103493539B (en
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王金灵
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0064—Transmission or use of information for re-establishing the radio link of control information between different access points

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Disclosed are a communication method, a base station and a user equipment (UE). The method comprises a first base station receiving a confirmation message of allowing a UE to perform handover sent by a second base station, the first base station being a base station controlling a source cell of the UE, and the second base station being a base station controlling a destination cell of the UE; the first base station sending a handover command to the UE, the handover command comprising a TTIdiff, the TTIdiff being a difference between a transmission time interval TTIdst of the second base station and a transmission time interval TTIsrc of the first base station. The method can avoid a CRC error caused by different understanding about configuration by the UE and the base station after the UE accesses the base station.

Description

Communication method, base station and user equipment
Communication means, base station and user's i an ancient weapon made of bamboos are for technical field
The present invention relates to communication technical field, more particularly to a kind of communication means, base station and user equipment.Background technology
In Long Term Evolution（Long Term Evolution, english abbreviation is LTE) in system, user equipment (User Equipment, english abbreviation is UE) uplink synchronous and connection can be set up by non-initial random access procedure and base station (Evolved NodeB, english abbreviation is eNB).
The main of non-initial random access procedure includes switching（Hand over, english abbreviation is HO), for example：UE receives the switching command that source base station is sent, and initiates the Stochastic accessing to Target cell according to the switching command；After UE access Target cells, namely after handover success, using independent of System Frame Number（System Frame Number, english abbreviation is SFN) configuration, such as cycle is less than 10 milliseconds（Ms configuration), carries out normal data transfer, and starts to receive the main system block of Target cell（Master Information Block, english abbreviation is MIB);Then, UE adjusts the system frame number SFN of itself according to the system frame number SFN of the MIB Target cells carried, makes UE itself Transmission Time Interval（Transmission Time Interval, english abbreviation is TTI) keep and Target cell Transmission Time Interval TTIdUnanimously, after UE adjusts itself SFN, using the configuration dependent on SFN, for example：The channel quality that cycle is more than 10ms is indicated（Channel Quality Indicator, english abbreviation is CQI), dispatch request（Scheduling Request, english abbreviation is SR) and sounding reference symbol（Sounding Reference Symbol, english abbreviation is SRS).
During the present invention is realized, inventor has found that at least there are the following problems in the prior art：UE access Target cell to complete itself TTI adjustment, namely UE receive MIB after adjustment SFN, this period in, it is impossible to application dependence SFN configuration.Therefore, if the UE sends data to the target BS in this period, and meet CQI, SR, SRS cycle at the time of UE transmission data, the eNB will be mistakenly considered control information of the packet containing CQI, SR and SRS of UE transmissions, so as to cause CRC (Cyclical Redundancy Check, english abbreviation the is CRC) error to the data. The content of the invention
Embodiments of the invention provide a kind of communication means, base station and user equipment, can avoid UE after access base station, UE and base station are to crc error caused by the different understanding of configuration.
One aspect of the present invention provides a kind of communication means, including：
First base station receives the confirmation message that the permission user equipment (UE) of the second base station transmission is switched over, and the first base station is controls the base station of the cell-of-origin of the UE, and second base station is the base station for the Target cell for controlling the UE；
The first base station sends switching command to the UE, and the switching command includes TTIDLFF, the TTIDLFFFor the Transmission Time Interval sequence number TTI of second base stationDSTWith the Transmission Time Interval sequence number TTU differences of the first base station.
Another aspect of the present invention provides a kind of communication means, including：
User equipment (UE) receives the switching command that first base station is sent, the switching command The Τ is the Transmission Time Interval sequence number TTI of the second base stationDSTWith the Transmission Time Interval sequence number TTU differences of the first base station；Wherein, the cell-of-origin of the UE is controlled by the first base station, and the Target cell of the UE is controlled by second base station, the Transmission Time Interval sequence number TTI that the UE is usedUEWith the TTISRCIt is identical；
UE UE according to TTId^^ Transmission Time Interval sequence number TTIUEIt is adjusted to identical with the sound of chopping wood 1^.
Another aspect of the present invention provides a kind of communication means, including：
User equipment (UE) receives the switching command that first base station is sent, and the switching command includes Τ Τ Ι, and the Τ is the Transmission Time Interval sequence number TTI of the second base stationDSTWith the Transmission Time Interval sequence number TTU differences of the first base station；Wherein, the cell-of-origin of the UE is controlled by the first base station, and the Target cell of the UE is controlled by second base station, the Transmission Time Interval sequence number TTIUE and the TTI of the UESRCIt is identical；
The UE is according to the TTI^f and the TTIUEDetermine the system frame number SFN of the Target cell of the UEdst; If the system frame number SFN of the UEUEWith the SFNdstOdd even is on the contrary, the UE adjusts the SFNUE, the adjustment SFNui^ is by the SFNUEIncrease or decrease 10 milliseconds of integral multiple.
Another aspect of the present invention provides a kind of base station, including：
First receiver, for receiving the confirmation message that the permission user equipment (UE) that the second base station is sent is switched over, the first base station is controls the base station of the cell-of-origin of the UE, and second base station is the base station for the Target cell for controlling the UE；And,
First transmitter, for sending switching command to the UE, the switching command includes TTIDLFF, the Τ is the Transmission Time Interval sequence number 171^ of second base station and the Transmission Time Interval sequence number TTU differences of the first base station.
Another aspect of the present invention provides a kind of user equipment, including：
Second receiver, the switching command for receiving first base station transmission, the switching command includes TTIDLFF, the fourth！！^ is the Transmission Time Interval sequence number TTI of the second base stationDSTWith the Transmission Time Interval sequence number TTU differences of the first base station；Wherein, the cell-of-origin of the UE is controlled by the first base station, and the Target cell of the UE is controlled by second base station, the Transmission Time Interval sequence number TTI that the UE is usedUEWith the TTISRCIt is identical；And
Second processor, for according to the TTIDLFFThe Transmission Time Interval sequence number TTIUE of the UE is adjusted to and the TTIDSTIt is identical.
Another aspect of the present invention provides a kind of user equipment, including：
3rd receiver, the switching command for receiving first base station transmission, the switching command includes TTIDLFF, the fourth！！^ is the Transmission Time Interval sequence number TTI of the second base stationDSTWith the Transmission Time Interval sequence number TTI of the first base stationSDifference；Wherein, the cell-of-origin of the UE is controlled by the first base station, and the Target cell of the UE is controlled by second base station, and the Transmission Time Interval sequence number TTIUE of the UE is identical with the sound of chopping wood 1^；
3rd processor, for according to the TTIDLFFWith the TTIUEDetermine the system frame number SFN of the Target cell of the UEdst, and if the system frame number SFN of the UEUEWith the SFNdstOdd even is on the contrary, the UE adjusts the SFNUE, the adjustment SFNUERefer to the SFNUEIncrease or decrease 10 milliseconds Integral multiple.
Above-mentioned technical proposal can be before UE access Target cells, according to the Transmission Time Interval TTI of Target cellDSTSubtract the Transmission Time Interval TTI of cell-of-originSRCThe difference TTI obtained afterwardsDLFF, the TTIUE of the UE is adjusted to the TTI with Target cellDST- cause, or the UE is according to the TTIDLFFJudge Target cell SFNDSTParity, after the UE is linked into Target cell immediately application dependent on SFN configuration, it is to avoid UE and base station are to crc error caused by the different understanding of configuration.Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
The communication means flow chart that Fig. 1 provides for one embodiment of the invention；
The communication means flow chart that Fig. 2 provides for another embodiment of the present invention；
The communication means flow chart that Fig. 3 provides for another embodiment of the present invention；
The architecture of base station schematic diagram that Fig. 4, Fig. 5 provide for another embodiment of the present invention；
The user device architecture schematic diagram that Fig. 6 provides for another embodiment of the present invention；
The user device architecture schematic diagram that Fig. 7 provides for another embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, all other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
To make the advantage of technical solution of the present invention clearer, the present invention is elaborated with reference to the accompanying drawings and examples.
In various embodiments of the present invention, first base station controls UE cell-of-origin, and the second base station controls the UE's Target cell, namely the source base station that first base station is the UE, the second base station is the target BS of the UE.For convenience of description, hereinafter, TTIsrcRepresent the Transmission Time Interval sequence number of the first base station, TTIdstThe Transmission Time Interval sequence number of second base station is represented, TTIUE represents UE Transmission Time Interval sequence number, or the Transmission Time Interval sequence number used for UE.
In various embodiments of the present invention, the English abbreviation of Transmission Time Interval sequence number can be TTI No., and be determined with+Subframe the index of SFN X 10, so which system-frame the position for indicating the TTI is（Alternatively referred to as radio frames）Which of subframe.Wherein, SFN for [0,1023) any value in interval, Subframe index represent subframe numbers, be [0,9) any value in interval.Repeat no more hereinafter.Further, the method that simple introduction determines the SFN (namely current SFN) of base station below：0 point of second obtained for 0 second counts when the current absolute time in the base station is subtracted into 1 day 0 January in 1970（As POSIX time) after, 100 (unit 10ms) are multiplied by, then to 1024 remainders, resulting value is the current SFN of the base station.
One embodiment of the present of invention provides a kind of communication means, as shown in figure 1, methods described comprises the following steps.
101st, first base station receives the confirmation message that the permission user equipment (UE) of the second base station transmission is switched over.
The confirmation message that permission UE in this step is switched over can be understood as the confirmation message for indicating to allow user equipment (UE) to switch over, or the confirmation response that the request switched over for UE is done.
102nd, first base station sends switching command, the switching command to the UE The TTIdlffFor the TTIdsτ τ υ differences described in ^.
Optionally, the TTIdlff = TTIsrc + (Tsrc - Tdst) - TTIdst;Wherein, TsrcThe system absolute time of first base station when receiving the confirmation message for the first base station, 1^ is the system absolute time of the second base station when second base station sends switch acknowledgment message.Optionally, fourth！！^ and！^ can be carried in the confirmation message, namely the first base station obtains the TTI by receiving confirmation messageds^pTdst。
Optionally, if the Absolute Time Synchronization of the first base station and second base station, and the first base station is by the TTIsrcIt is adjusted to and the TTIdstPhase synchronization, the fourth！^^ is..
Optionally, the present embodiment also includes step A and step B.Wherein, step A is the first base station Synchronized with the absolute time of second base station, step B is that the 171^ is adjusted to carry out Phase synchronization with the 171^ by the first base station.
Optionally, in step, the mode that the first base station and the absolute time of second base station are synchronized is not limited to following several：Utilize global positioning system（Global Positioning System, english abbreviation is GPS), or 1588V2 agreements, or NTP（Network Time Protocol, english abbreviation is NTP).For example, the first base station and second base station can install gps receiver, the time synchronized with gps system, so as to realize the Absolute Time Synchronization of first base station and the second base station.
Optionally, in stepb, if making the first base station regular identical with the Transmission Time Interval sequence number of second base station, on the premise of the Absolute Time Synchronization for then making the first base station and second base station in step, the first base station and the Transmission Time Interval sequence number of second base station are exactly identical, i.e. TTISRC= TTIDST, also it is achieved that described Phase synchronization.
It should be noted that step B is performed after step, and the sequencing of step A, step B and step 101 without certainty, with step 102 also without inevitable sequencing.For example, the first base station can be with second base station when upper electric absolute time synchronize, absolute time that can also be with second base station between receiving the confirmation message and sending switching command is synchronized, and absolute time that can also be with second base station after switching command is sent is synchronized.
Above-mentioned technical proposal is by by the TTIDLFFUE is sent to switching command, the UE can be made according to the TTIDLFFAdjust TTIUEOr SFNUE, so as to avoid UE and base station to crc error caused by the different understanding of configuration.
Following examples are further described according to the TTI from UE sidesDIFFAdjust TTIUE or SFNUEMethod, these embodiments can be combined with above-described embodiment.
An alternative embodiment of the invention provides a kind of communication means, as shown in Fig. 2 methods described includes：
201st, UE receives the switching command that first base station is sent, and the switching command includes Τ, the TTIDLFFFor the TTIDSTWith the TTISJ differences；Wherein, the UE is used in this step（Namely current）TTIUE is identical with the sound of chopping wood 1^.
202nd, the UE is according to the TTIdlffThe Transmission Time Interval that the UE is used in step 201 TTIUEIt is adjusted to identical with the sound of chopping wood 1^.
Optionally, the UE uses the UE in step 201 the TTIUE and Τ Τ Ι ^ take and, and using be worth the TTI as the UEUE, namely the UE new TTIUE。
Optionally, after step 202, the present embodiment also includes step 203 to 205.
203rd, the UE accesses the Target cell.
204th, the UE applies the configuration dependent on SFN, for example, the cycle is more than 10ms CQI, SR and SRS.It should be understood that the UE is immediately performed step 204 after step 203, the present embodiment is contributed to obtain more preferable effect.
205th, if there is uplink authorization, the UE sends data to second base station.
Optionally, after step 204, the present embodiment also includes step 206.
206th, the UE receives the main system block MIB that second base station is sent.
Above-mentioned technical proposal can make UE according to TTIdlffCurrent TTIUEIt is adjusted to and the TTIds^ is same, to avoid UE and base station to crc error caused by the different understanding of configuration.
An alternative embodiment of the invention provides a kind of communication means, as shown in figure 3, methods described includes：
301st, UE receives the switching command that first base station is sent, and the switching command includes Τ, the TTIdlffFor the TTIdstWith the TTU differences；Wherein, the UE is used in this step（Namely current）TTIUE is identical with the sound of chopping wood 1^.
302nd, the UE is according to the TTIdlffThe system frame number SFN of the fixed UE of TTIu^jl used in step 301 with the UE Target celldst。
If the 303, system frame number SFN of the UEUEWith the SFNdstOdd even is on the contrary, the UE adjusts the SFNUE, the adjustment SFNui^ is by the SFNUEIncrease or decrease 10ms integral multiple.
Optionally, if Physical Random Access Channel (Physical Random Access Channel, english abbreviation the is PRACH) configuration of the Target cell of the UE（PRACH configuration) the transmission cycle be 20ms, after step 303, the present embodiment also includes step 304 to 306.One transmission cycle is being exemplified as that 20ms PRACH is configured, and the configuration includes： PRACH configurations 0, 1, 2, 15, 16, 17, 18, 31, 32, 33, 34, 47, 48, 49, 50 and 63. 304th, the UE utilizes the SFN after adjustmentUEAccess lead is sent to second base station.It should be noted that the step and the TTIdlffWhether be less than 5ms networking requirement there is no positive connection.
305th, the UE accesses Target cell.
306th, the UE applies the configuration dependent on SFN.For example, the cycle is more than 10ms CQI, SR and SRS.
Optionally, after step 305, the present embodiment also includes step 307 to 308.
307th, the UE receives the main system block MIB that second base station is sent.
308th, the UE by step 303 adjust after SFNUEIt is adjusted to the SFN with Target celldstIt is identical.
Above-mentioned technical proposal can make the UE according to the TTId!Ff^ breaks SFNds^ parities, with the SFNdstSFN with same parityUEThe upper transmission cycle is 20ms access lead, to avoid UE and base station to crc error caused by the different understanding of configuration, and reduces base station networking requirement.
It should be noted that communication means provided in an embodiment of the present invention, which is applied to UE, carries out the scene of cell switching, but it is not limited only to this.
An alternative embodiment of the invention provides a kind of base station, as shown in figure 4, the base station includes：First receiver 41, for receiving the confirmation message that the permission user equipment (UE) that the second base station is sent is switched over, the first base station is controls the base station of the cell-of-origin of the UE, and second base station is the base station for the Target cell for controlling the UE；And
First transmitter 42, for sending switching command to the UE, the switching command includes TTIdlff, the TTIdlffFor the Transmission Time Interval sequence number fourth of second base station！！The ^ and Transmission Time Interval sequence number TTI of the first base stationSJ differences.
Optionally, as shown in figure 5, the base station that the present embodiment is provided also includes：First processor 43, for determining the TTI according to equation belowdlff: TTIdlff = TTIsrc + (Tsrc - Tdst) - TTIdst;Wherein, TsrcThe system absolute time of first base station, T when receiving the confirmation message for the first base stationdsThe system absolute time of second base station when second base station described in ^ sends switch acknowledgment message.
Optionally, the first processor 43 is additionally operable to synchronize with the absolute time of second base station, And be adjusted to the 171^ to carry out Phase synchronization with the sound of chopping wood 1^.
Wherein, first processor 43 is connected with the first transmitter 42, can also be connected with the first receiver 41.The Τ is sent to UE by above-mentioned technical proposal by the first transmitter 42 with switching command, and the UE can be made to adjust TTIUE or SFN according to the Τ Τ ΙUE, so as to avoid UE and base station to crc error caused by the different understanding of configuration.
The base station that the present embodiment is provided can be used for performing the action that first base station is performed in the method that above-described embodiment is provided, reference can be made to above-described embodiment, here is omitted.
An alternative embodiment of the invention provides a kind of user equipment (UE), as shown in fig. 6, the user equipment includes：
Second receiver 61, the switching command for receiving first base station transmission, the switching command includes TTIdlff, the fourth！！^ is the Transmission Time Interval sequence number TTI of the second base stationdstWith the Transmission Time Interval sequence number TTU differences of the first base station；Wherein, the cell-of-origin of the UE is controlled by the first base station, and the Target cell of the UE is controlled by second base station, the Transmission Time Interval sequence number TTI that the UE is usedUEWith the TTIsrcIt is identical；And
Second processor 62, for according to the TTIDLFFThe TTIUE of the UE is adjusted to and the TTIDSTIt is identical.
For example, the second processor 62 specifically for：By the TTIUE of the UE and the TTIDLFFTake and, and by the fourth！！The ^ and TTIdlffAnd value as UE TTIUE。
Optionally, the second processor 62 is additionally operable to：The UE is accessed into the Target cell；And configuration of the application dependent on system frame number SFN（As the cycle is more than 10ms CQI, SR and SRS), and if there is uplink authorization, send data to second base station.
Optionally, the second processor 62 is additionally operable to：Receive the main system block MIB that second base station is sent.
Above-mentioned technical proposal can make UE receive TTI by the second receiver 61dlffAfterwards, by second processor 62 according to TTIdlffCurrent TTIUEIt is adjusted to and the TTIdstIt is identical, to avoid UE and base station to crc error caused by the different understanding of configuration. U ¾Fourth ^ is acted, reference can be made to above-described embodiment, here is omitted.
An alternative embodiment of the invention provides a kind of user equipment (UE), as shown in fig. 7, the user equipment includes：
3rd receiver 71, the switching command for receiving first base station transmission, the switching command includes TTIdlff, the fourth！！^ is the Transmission Time Interval sequence number TTI of the second base stationdstWith the Transmission Time Interval sequence number TTU differences of the first base station；Wherein, the cell-of-origin of the UE is controlled by the first base station, and the Target cell of the UE is controlled by second base station, the Transmission Time Interval sequence number TTI of the UEUEWith the TTIsrcIt is identical；And
3rd processor 72, for according to the TTIdlffWith the TTIUEDetermine the SFN of the Target cell of the UEdst, and if the system frame number SFN of the UEUEWith the SFNdstOdd even is on the contrary, the UE adjusts the SFNUE, the adjustment SFNui^ is by the SFNUEIncrease or decrease 10 milliseconds of integral multiple.
Optionally, the 3rd processor 62 is additionally operable to：
If the transmission cycle of the Physical Random Access Channel PRACH configurations of the Target cell of the UE is 20ms, SFN after the adjustmentUEOn to second base station send access lead, independent of first base station and the absolute time of the second base station difference be less than 5ms networking requirement；After the UE accesses Target cell, using the configuration dependent on SFN（As the cycle is more than 10ms CQI, SR and SRS);And if there is uplink authorization, the UE sends data to second base station.
Optionally, the 3rd processor 62 is additionally operable to：Receive the main system block MIB that second base station is sent;And according to the system frame number SFN d of the MIB Target cells included1SFNu^jf after the adjustment is whole to be arrived and the SFNdst- cause.
Above-mentioned technical proposal can make the UE by the 3rd processor 72 according to the TTIdlffJudge SFNdstParity, and with the SFNdstSFN with same parityUEThe upper transmission cycle is 20ms access lead, to avoid UE and base station to crc error caused by the different understanding of configuration, and reduces base station networking requirement.
It is dynamic Make, reference can be made to above-described embodiment, here is omitted.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, computer program is can be by instruct the hardware of correlation to complete, described program can be stored in a computer read/write memory medium, the program is upon execution, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, described storage medium can be magnetic disc, CD, read-only memory（Read-Only Memory, ROM) or random deposit ^ ^ oneself recalls body (Random Access Memory, RAM) etc..
It is described above; only embodiment of the invention, but protection scope of the present invention is not limited thereto, any one skilled in the art the invention discloses technical scope in; the change or replacement that can be readily occurred in, should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be defined by scope of the claims.

Claims (1)

  1. Claims
    1st, a kind of communication means, it is characterised in that including：
    First base station receives the confirmation message that the permission user equipment (UE) of the second base station transmission is switched over, and the first base station is controls the base station of the cell-of-origin of the UE, and second base station is the base station for the Target cell for controlling the UE；
    The first base station sends switching command to the UE, and the switching command includes Τ, the TTIDLFFFor the Transmission Time Interval sequence number TTI of second base stationDSThe Transmission Time Interval sequence number τ τ υ differences of first base station described in ^.
    2nd, communication means according to claim 1, it is characterised in that
    The TTIDIFF = TTISRC + (TSRC - TDST) - TTIDST;
    Wherein, TSRCThe system absolute time of first base station, T when receiving the confirmation message for the first base stationDSTThe system absolute time of second base station when sending switch acknowledgment message for second base station.
    3rd, communication means according to claim 1 or 2, it is characterised in that if the Absolute Time Synchronization of the first base station and second base station, and the first base station would be by the TTISRCIt is adjusted to and the TTIDSTPhase synchronization, the TTIDLFFFor 0.
    4th, communication means according to claim 3, it is characterised in that methods described also includes：The first base station and the absolute time of second base station are synchronized；
    The 171^ is adjusted to and the TTI by the first base stationDST;Line phase is synchronous.
    5th, a kind of communication means, it is characterised in that including：
    User equipment (UE) receives the switching command that first base station is sent, and the switching command includes TTIDLFF, the TTIDLFFFor the Transmission Time Interval sequence number TTI of the second base stationDSTWith the Transmission Time Interval sequence number TTU differences of the first base station；Wherein, the cell-of-origin of the UE is controlled by the first base station, and the Target cell of the UE is controlled by second base station, the Transmission Time Interval sequence number TTIUE that the UE the is used and TTISRCIt is identical；
    The UE is according to the TTIDLFFBy the Transmission Time Interval sequence number TTI of the UEUEIt is adjusted to and the TTIDSTIt is identical. 6th, communication means according to claim 5, it is characterised in that the UE is by the TTIUEIt is adjusted to and the TTIdstIt is identical including：
    By the TTIUE and the TTIDLFFTake and, and by the TTIUE and the TTIDLFFAnd value as the UE TTIUE。
    7th, the communication means according to claim 5 or 6, it is characterised in that the TTIUE is adjusted to and the TTI by the UEdstAfter identical, in addition to：
    The UE accesses the Target cell；
    The UE applies the configuration dependent on system frame number SFN；
    If there is uplink authorization, the UE sends data to second base station.
    8th, communication means according to claim 7, it is characterised in that the UE is applied after the configuration dependent on SFN, in addition to：
    The UE receives the main system block MIB that second base station is sent.
    9th, the communication means according to claim 7 or 8, it is characterised in that the configuration dependent on SFN includes：Cycle is more than 10ms channel quality indicator (CQI), dispatch request SR and sounding reference symbol SRS.
    10th, a kind of communication means, it is characterised in that including：
    User equipment (UE) receives the switching command that first base station is sent, and the switching command includes TTIdlff, the TTIdlffFor the Transmission Time Interval sequence number TTI of the second base stationdstWith the Transmission Time Interval sequence number TTU differences of the first base station；Wherein, the cell-of-origin of the UE is controlled by the first base station, and the Target cell of the UE is controlled by second base station, and the Transmission Time Interval sequence number TTIUE of the UE is identical with 1 1^；The UE is according to the TTIDLFFThe system frame number SFN of the Target cell of the UE is determined with the TTIUEdst；
    If the system frame number SFN of the UEUEWith the SFNdstOdd even is on the contrary, the UE adjusts the SFNUE, the adjustment SFNui^ is by the SFNUEIncrease or decrease 10 milliseconds of integral multiple.
    11st, communication means according to claim 10, it is characterised in that if the transmission cycle of the Physical Random Access Channel PRACH configurations of the Target cell of the UE is 20 milliseconds, the UE adjusts the SFNUEAfterwards, methods described also includes： The UE utilizes the SFN after adjustmentUEAccess lead is sent to second base station；
    The UE accesses Target cell, and configuration of the application dependent on SFN；
    If there is uplink authorization, the UE sends data to second base station.
    12nd, communication means according to claim 11, it is characterised in that the UE accesses Target cell, and application is depended on after SFN configuration, in addition to：
    The UE receives the main system block MIB that second base station is sent；
    SFNUE after the adjustment is adjusted to the SFN with Target cell by the UEDSTIt is identical.
    13rd, the communication means according to claim 11 or 12, it is characterised in that the configuration dependent on SFN includes：Cycle is more than 10ms channel quality indicator (CQI), dispatch request SR and sounding reference symbol SRS
    14th, a kind of base station, it is characterised in that including：
    First receiver, for receiving the confirmation message that the permission user equipment (UE) that the second base station is sent is switched over, the first base station is controls the base station of the cell-of-origin of the UE, and second base station is the base station for the Target cell for controlling the UE；And,
    First transmitter, for sending switching command to the UE, the switching command includes TTIdlff, the TTIdlffFor the Transmission Time Interval sequence number TTI of second base stationdstWith the Transmission Time Interval sequence number TTI of the first base stationSJ differences.
    15th, base station according to claim 14, it is characterised in that also include：
    First processor, for determining the Τ according to equation belowώίϊ: TTIdlff= TTIsrc + (Tsrc - Tdst)
    - TTIdst;
    Wherein, TsrcThe system absolute time of first base station, T when receiving the confirmation message for the first base stationdstThe system absolute time of second base station when sending switch acknowledgment message for second base station.
    16th, the base station according to claims 14 or 15, it is characterised in that the first processor in the base station, is additionally operable to synchronize with the absolute time of second base station, and by the TTIsrc^ is whole to be arrived and the TTIdstIi line phases are synchronous.
    17th, a kind of user equipment (UE), it is characterised in that including： Second receiver, the switching command for receiving first base station transmission, the switching command includes Τ, the fourth！！^ is the Transmission Time Interval sequence number TTI of the second base stationDSTWith the Transmission Time Interval sequence number TTU differences of the first base station；Wherein, the cell-of-origin of the UE is controlled by the first base station, and the Target cell of the UE is controlled by second base station, the Transmission Time Interval sequence number TTI that the UE is usedUEWith the TTISRCIt is identical；And
    Second processor, for according to the TTIDLFFThe Transmission Time Interval sequence number TTIUE of the UE is adjusted to and the TTIDSTIt is identical.
    18th, UE according to claim 17, it is characterised in that the second processor is specifically for by the TTIUE and the TTIDIFFTake and, and by the TTIUE and the TTIDIFFAnd value as the UE TTIUE。
    19th, the UE according to claim 17 or 18, characterized in that, the second processor is additionally operable to the UE accessing the Target cell, and configuration of the application dependent on system frame number SFN, and if there is uplink authorization, send data to second base station.
    20th, UE according to claim 19, it is characterised in that the second processor is additionally operable to receive the main system block MIB that second base station is sent.
    21st, a kind of user equipment (UE), it is characterised in that including：
    3rd receiver, the switching command for receiving first base station transmission, the switching command includes Τ, the fourth！！^ is the Transmission Time Interval sequence number TTI of the second base stationDSTWith the Transmission Time Interval sequence number TTU differences of the first base station；Wherein, the cell-of-origin of the UE is controlled by the first base station, and the Target cell of the UE is controlled by second base station, the Transmission Time Interval sequence number TTIUE and the TTI of the UESRCIt is identical；And
    3rd processor, for according to the TTIDLFFThe system frame number SFN of the Target cell of the UE is determined with the TTIUEDST, and if the system frame number SFN of the UEUEWith the SFNDSTOdd even is on the contrary, the UE adjusts the SFNUE, the adjustment SFNUE refers to the SFNUEIncrease or decrease 10 milliseconds of integral multiple.
    22nd, UE according to claim 21, it is characterised in that if the transmission cycle of the Physical Random Access Channel PRACH configurations of the Target cell of the UE is 20 milliseconds, the 3rd processor is additionally operable to utilize SFN after adjustmentUEAccess lead is sent to second base station, the UE is accessed into Target cell, and configuration of the application dependent on system frame number SFN, and if there is uplink authorization, the UE sends data to second base station.
    23rd, the UE according to claim 21 or 22, it is characterised in that the 3rd processor is additionally operable to receive the main system block MIB that second base station is sent;And by the SFN after the adjustmentUEIt is adjusted to the SFN with Target celldstIt is identical.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109076499A (en) * 2016-05-11 2018-12-21 华为技术有限公司 Base station sub-clustering, base station control method and device
CN115175353A (en) * 2021-04-02 2022-10-11 维沃移动通信有限公司 Scheduling method, device, equipment and readable storage medium

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105578535A (en) * 2014-10-08 2016-05-11 展讯通信（上海）有限公司 Cell hard handover processing system, cell hard handover processing method and mobile terminal

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101090563A (en) * 2006-06-15 2007-12-19 中兴通讯股份有限公司 Method for alignment of soft switchover forward frame of CDMA radio communication system
CN101483892A (en) * 2008-01-08 2009-07-15 华为技术有限公司 Switching command sending method and base station
KR100913889B1 (en) * 2007-03-22 2009-08-26 삼성전자주식회사 Apparatus and method for handover in wireless system
CN101541052A (en) * 2008-03-21 2009-09-23 华为技术有限公司 Method for optimizing switching process and base station equipment

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101848423A (en) * 2009-03-25 2010-09-29 中兴通讯股份有限公司 User equipment soft combination method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101090563A (en) * 2006-06-15 2007-12-19 中兴通讯股份有限公司 Method for alignment of soft switchover forward frame of CDMA radio communication system
KR100913889B1 (en) * 2007-03-22 2009-08-26 삼성전자주식회사 Apparatus and method for handover in wireless system
CN101483892A (en) * 2008-01-08 2009-07-15 华为技术有限公司 Switching command sending method and base station
CN101541052A (en) * 2008-03-21 2009-09-23 华为技术有限公司 Method for optimizing switching process and base station equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109076499A (en) * 2016-05-11 2018-12-21 华为技术有限公司 Base station sub-clustering, base station control method and device
US10708926B2 (en) 2016-05-11 2020-07-07 Huawei Technologies Co., Ltd. Base station clustering method, base station control method, and apparatus
CN115175353A (en) * 2021-04-02 2022-10-11 维沃移动通信有限公司 Scheduling method, device, equipment and readable storage medium

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