CN103327646B - A kind of amending method and device of time reference cell - Google Patents
A kind of amending method and device of time reference cell Download PDFInfo
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- CN103327646B CN103327646B CN201210073088.0A CN201210073088A CN103327646B CN 103327646 B CN103327646 B CN 103327646B CN 201210073088 A CN201210073088 A CN 201210073088A CN 103327646 B CN103327646 B CN 103327646B
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Abstract
The invention discloses a kind of amending method and device of time reference cell, including：User equipment will first be arranged to the time reference cell of auxiliary serving cell packet when needing to change the time reference cell of auxiliary serving cell packet as the cell of time reference cell, afterwards, make original time reference cell unavailable in auxiliary serving cell packet；Or user equipment first makes original time reference cell unavailable in auxiliary serving cell packet, afterwards, the time reference cell of auxiliary serving cell packet will be arranged to as the cell of time reference cell；Or user equipment make original time reference cell auxiliary serving cell packet in it is disabled simultaneously, will be arranged to as the cell of time reference cell auxiliary serving cell be grouped time reference cell.The present invention under more TA carrier aggregation systems, can determine the selection time and entry-into-force time point of the time reference cell of auxiliary serving cell packet.
Description
Technical field
The present invention relates to moving communicating field, more particularly to a kind of amending method and device of time reference cell.
Background technology
Draw in advanced long-term evolution system (Long Term Evolution Advance, referred to as LTE-Advanced)
Many new technologies are entered to meet IMT-Advanced primary demand, one technology of most important of which is exactly carrier aggregation.
Due to the property in short supply of current radio spectrum resources, and IMT-Advanced requires that the index of peak rate is higher (high
100Mbps is supported under mobility, 1Gbps is supported under Hypomobility), the bandwidth with current LTE standard maximum 20MHz is can not
Meet IMT-Advanced requirements, so needing to extend to more high bandwidth, such as 40MHz, 60MHz, even more high.Improve band
One of wide and peak rate method is that frequency domain is expanded, for example, several LTE frequency bands based on 20MHz are passed through into " carrier wave
The mode of polymerization " carries out bandwidth expansion, and here it is the essence of carrier aggregation technology.Therefore, LTE-Advanced systems are fallen within
Multicarrier system.
In LTE-Advanced systems, the carrier wave for participating in polymerization is referred to as component carrier (Component Carrier), uses
Family equipment (User Equipment, referred to as UE) can carry out transmitting-receiving transmission on multiple component carriers with eNB simultaneously.Component
Carrier wave can use LTE defined frequency ranges, can also use the frequency range specially increased newly for LTE-Advanced.Based on current
Frequency spectrum resource is nervous, it is impossible to always has continuous component carrier on frequency domain to distribute to operator's use, therefore component carrier
Can be continuous or discontinuous on frequency band.The concept of main plot and secondary cell is introduced in carrier aggregation, it is main
Cell refers to UE and initiates RRC connections foundation or RRC connection reconstructions or the cell that main plot is designated as in handoff procedure；Secondary cell
Refer to the frequency for being different from main plot, and configured after UE enters RRC connection status, for providing extra Radio Resource.Carrying
In ripple paradigmatic system, serving cell includes main serving cell and auxiliary serving cell.
After introducing carrier aggregation technology, UE can be simultaneously in multiple serving cells in RRC connected states (RRC_CONNECTED)
On carry out transmitting-receiving transmission, but for Idle state (RRC_IDLE) UE, as LTE, be only capable of it is resident on one cell, UE
After being successfully accessed in the cell, i.e. after UE establishes RRC connections in the cell, according to business needs, base station can be by special
It is the newly-increased cell of UE distribution with RRC signaling, distributing after these newly-increased cells base station and UE, at this, to increase cell newly not enterprising immediately
Row data transmit-receive, i.e. base station do not increase newly at this and send business datum to UE in cell, and UE preserves the configuration information in the cell,
Also business datum is sent to base station not in the cell, waits the further action of base station.Subsequent base stations can be according to business
Need to activate the cell, after the cell is activated, base station and UE could carry out data transmit-receive in the cell.
In LTE system, in order to realize and keep the uplink synchronous between user equipment and base station, base station according to base station with
Propagation delay time between each user equipment sends Timing Advance (Timing Advance, referred to as TA) to each user equipment,
The Timing Advance that user equipment is sent according to base station shifts to an earlier date or postponed the opportunity of respective uplink, so as to make up user equipment
To the propagation delay time of base station so that the upward signal of different user devices all reaches base station within the reception window of base station.Such as
Fruit is larger for the propagation delay time difference of each minizone in the cell of some user device configuration, can not use identical TA, that
Just need to introduce more TA concept in carrier aggregation system.According to the situation using TA, identical TA UE can will be used
It is placed in same group, thus introduces the concept of packet.
In carrier aggregation system before, all cells use identical TA, upward signal of the main plot as UE
Reference cell during transmission, hereinafter referred to as time reference cell.Needed after packet and more TA concept is introduced in each packet
One cell of middle selection is as time reference cell.In the packet comprising main plot, can be continuing with main plot as when
Between reference cell；In only the group of multiple secondary cells is included, time reference cell of the secondary cell as the group is selected.Due to
The deployment of frequency selective amplifier and radio frequency remote equipment in carrier aggregation system be present, therefore, during UE is moved
The situation of the time reference cell change of auxiliary serving cell packet is likely to occur, this just draws following problem：
(1) opportunity of new time reference cell selection；
(2) the entry-into-force time point of new time reference cell；
Selected for time reference cell new in auxiliary serving cell packet under more TA carrier aggregation systems in correlation technique
The problem of entry-into-force time point of opportunity for selecting and new time reference cell, not yet proposes effective solution at present.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of amending method and device of time reference cell, can determine
The entry-into-force time point of new time reference cell.
In order to solve the above technical problems, a kind of amending method of time reference cell of the present invention, including：
User equipment will first be used as time reference small when needing to change the time reference cell of auxiliary serving cell packet
The cell in area is arranged to the time reference cell of auxiliary serving cell packet, afterwards, makes original time reference cell small in auxiliary service
It is unavailable in differentiation group；Or user equipment first makes original time reference cell unavailable in auxiliary serving cell packet, it
Afterwards, the time reference cell of auxiliary serving cell packet will be arranged to as the cell of time reference cell；Or user equipment
Make original time reference cell auxiliary serving cell packet in it is disabled simultaneously, will be set as the cell of time reference cell
It is set to the time reference cell of auxiliary serving cell packet.
Further, it is necessary to which the situation for changing the time reference cell of auxiliary serving cell packet is：The auxiliary serving cell
The time reference cell of packet needs to be deleted or be fitted on other packets outside auxiliary serving cell packet again or deactivated.
Further, user equipment knows the mode for the time reference cell for needing to change auxiliary serving cell packet, including：
Base station needs to be deleted or be fitted on again auxiliary serving cell point in the time reference cell that the auxiliary serving cell is grouped
During other packets outside group, notify that the user equipment is deleted or time reference again with auxiliary serving cell packet is small
Area, the user equipment know the time reference cell for needing to change auxiliary serving cell packet；Or
The user equipment obtains when the time reference cell for judging the auxiliary serving cell packet needs to be deactivated
Know the time reference cell for needing to change auxiliary serving cell packet.
Further, judging the time reference cell of the auxiliary serving cell packet needs to be deactivated, including：
The user equipment receives the order of the time reference cell of the deactivation auxiliary serving cell packet of base station transmission,
Or the packet data inactivity timer time-out of the time reference cell.
Further, user equipment knows to the cell as time reference cell, including：
Base station will notify described to the user equipment as the cell of time reference cell, the user equipment according to
The notice of the base station know it is described will be as the cell of time reference cell；Or the user equipment is voluntarily from described auxiliary
In cell in serving cell packet in addition to original time reference cell, select to be used as the time to join described in cell conduct
Examine the cell of cell.
Further, the base station needs to be deleted or be fitted on again in the time reference cell that the auxiliary serving cell is grouped
Auxiliary serving cell packet outside other packet when, by wireless heterogeneous networks (RRC) connect reconfiguration message notify the use
Family equipment is deleted or the time reference cell again with auxiliary serving cell packet, using it is described will be as time reference cell
When cell is notified to the user equipment, the small of time reference cell will be also used as by the RRC connections reconfiguration message
Area is notified to the user equipment.
Further, in addition to：
The user equipment voluntarily from the auxiliary serving cell packet in it is small in addition to original time reference cell
Qu Zhong, select a cell described in asing will after the cell as time reference cell, according to selected cell calculating it is new when
Between lead (TA), or use current TA.
Further, new Timing Advance is calculated according to selected cell, including：
The downgoing time of the downgoing time of cell selected by the current TA+ of new TA=-original time reference cell.
Further, it is described to make original time reference cell unavailable in auxiliary serving cell packet, it is auxiliary with needing to change
The situation of the time reference cell of serving cell packet is corresponding, is respectively：To the time reference of auxiliary serving cell packet
Cell is deleted or is fitted on again other packets outside auxiliary serving cell packet or deactivated.
Further, a kind of modification device of time reference cell, including：Modification opportunity determining unit and time reference are small
Area's setting unit, wherein：
The modification opportunity determining unit, it is used to determine whether to need the time reference of change auxiliary serving cell packet small
Area；
The time reference cell setting unit, for determining needing to change auxiliary clothes in the modification opportunity determining unit
During the time reference cell for cell group of being engaged in, auxiliary serving cell packet will be first arranged to as the cell of time reference cell
Time reference cell, afterwards, make original time reference cell unavailable in auxiliary serving cell packet；Or first when making original
Between reference cell auxiliary serving cell packet in it is unavailable, afterwards, will be used as time reference cell cell setting supplemented by take
The time reference cell for cell group of being engaged in；Or make original time reference cell disabled same in auxiliary serving cell packet
When, the time reference cell that auxiliary serving cell is grouped will be arranged to as the cell of time reference cell.
Further, the modification opportunity determining unit, specifically for the time reference being grouped in the auxiliary serving cell
Cell needs to be deleted or be fitted on other packets outside auxiliary serving cell packet or deactivated again when, it is determined that needing to change auxiliary
The time reference cell of serving cell packet.
Further, the modification opportunity determining unit, specifically for what is be grouped according to base station in the auxiliary serving cell
Time reference cell needs to be deleted or be fitted on other packets outside auxiliary serving cell packet again when, the deletion of transmission or match somebody with somebody again
The notice of the time reference cell of the auxiliary serving cell packet, know that the time reference for needing to change auxiliary serving cell packet is small
Area；Or,
When the time reference cell for judging auxiliary serving cell packet needs to be deactivated, know need to change it is auxiliary
The time reference cell of serving cell packet.
Further, the modification opportunity determining unit, specifically for receiving the auxiliary service of deactivation of base station transmission
The order of the time reference cell of cell group, or the packet data inactivity timer time-out of the time reference cell, judge institute
Stating the time reference cell of auxiliary serving cell packet needs to be deactivated.
Further, in addition to time reference cell determining unit, wherein：
The time reference cell determining unit, for be used as time reference described in knowing according to the notice of the base station
The cell of cell；Or voluntarily in the cell from auxiliary serving cell packet in addition to original time reference cell, choosing
Selecting a cell will be as the cell of time reference cell as described in.
Further, in addition to：Timing Advance determining unit, wherein：
The Timing Advance determining unit, in the time reference cell determining unit voluntarily from the auxiliary clothes
In cell in cell group of being engaged in addition to original time reference cell, select to be used as time reference described in cell conduct
After the cell of cell, new Timing Advance (TA) is calculated according to selected cell, or uses current TA, wherein, it is described
The downgoing time of the downgoing time of cell selected by the current TA+ of new TA=-original time reference cell.
In summary, the present invention under more TA carrier aggregation systems, can determine the time reference of auxiliary serving cell packet
The selection time of cell and entry-into-force time point.
Brief description of the drawings
Fig. 1 is the schematic diagram of the covering of carrier aggregation according to embodiments of the present invention；
Fig. 2~Fig. 6 is the flow chart of embodiment 1~5 in the present invention；
Fig. 7 is the schematic diagram of the new Timing Advance of the calculating of embodiment of the present invention；
Fig. 8 is the Organization Chart of the modification device of the time reference cell of embodiment of the present invention.
Embodiment
In present embodiment, new time reference cell chooses the right moment, including：Auxiliary serving cell is grouped Central Plains having time
Reference cell is deleted or is fitted on again other serving cell packets or is deactivated, and now, UE needs that the time will be used as
The cell of reference cell is arranged to the time reference cell of auxiliary serving cell packet.
Above-mentioned deactivation actively deactivates original time reference cell in secondary cell packet, or time ginseng comprising base station
Examine the packet data inactivity timer of cell then, UE voluntarily deactivates original time reference cell.
In present embodiment, the entry-into-force time point of new time reference cell includes：UE is needing to change auxiliary serving cell
During the time reference cell of packet, the time ginseng of auxiliary serving cell packet will be first arranged to as the cell of time reference cell
Cell is examined, afterwards, makes original time reference cell unavailable in auxiliary serving cell packet；Or user equipment first make it is original
Time reference cell auxiliary serving cell packet in it is unavailable, afterwards, will be used as time reference cell cell setting supplemented by
The time reference cell of serving cell packet；Or user equipment makes original time reference cell in auxiliary serving cell packet
It is disabled simultaneously, will be arranged to as the cell of time reference cell auxiliary serving cell packet time reference cell.
It is above-mentioned to make original time reference cell unavailable in auxiliary serving cell packet, it is with needing to change auxiliary serving cell
The situation of the time reference cell of packet is corresponding, is respectively：The time reference cell of auxiliary serving cell packet is carried out
Other packets or deactivation delete, being fitted on again outside auxiliary serving cell packet.
The above method is illustrated separately below.
Method one：
UE receives RRC connection reconfiguration messages, is used in RRC connection reconfiguration messages comprising auxiliary serving cell packet
Original time reference cell is deleted or is fitted on again the information of other packets by the information of new time reference cell, and notice UE
When, the new time reference cell configured in RRC connection reallocation messages is arranged to the time reference of auxiliary serving cell packet by UE
Cell, then, perform and delete or match somebody with somebody again original time reference cell；
Or UE first carries out deletion or matches somebody with somebody original time reference cell again, then will be configured in RRC connection reallocation messages
New time reference cell is arranged to the time reference cell of auxiliary serving cell packet；
Or UE will match somebody with somebody while performing deletion or matching somebody with somebody original time reference cell again in RRC connection reallocation messages
The new time reference cell put is arranged to the time reference cell of auxiliary serving cell packet.
Method two：
UE receives RRC connection reconfiguration messages, and auxiliary serving cell is deleted comprising notice UE in RRC connection reconfiguration messages
When the time reference cell of packet or the information for being grouped time reference cell configuration to other serving cells, UE is independently selected simultaneously
Using a new time reference cell, then perform and delete or match somebody with somebody again original time reference cell；
Or UE first carries out deletion or match somebody with somebody original time reference cell again, then autonomous selection and apply one it is new when
Between reference cell；
It is autonomous to select simultaneously application one new or UE is while performing deletion or matching somebody with somebody original time reference cell again
Time reference cell.
Method three：
When the time reference cell for judging auxiliary serving cell packet needs to be deactivated, UE is independently selected user equipment
And a new time reference cell is applied, then perform deactivation；
Or user equipment is first held when the time reference cell for judging auxiliary serving cell packet needs to be deactivated
Row is deactivated, and then UE is independently selected and applied a new time reference cell；
Or user equipment performs when the time reference cell for judging auxiliary serving cell packet needs to be deactivated
It is autonomous to select and apply a new time reference cell while deactivation.
Two kinds of technical schemes of the present invention are further elaborated on specific embodiment below in conjunction with the accompanying drawings.
Fig. 1 is the schematic diagram of the covering of carrier aggregation according to embodiments of the present invention.
Below to be retouched exemplified by mode of frequency division duplexing (Frequency Division Duplex, referred to as FDD)
State.
As shown in figure 1, serving cell 1 (descending frequency f1, up frequency f1 '), referred to as CC1 (DLf1, UL f1 ')；Clothes
Cell 2 of being engaged in (descending frequency f2, up frequency f2 '), referred to as CC2 (DLf2, UL f2 ')；Serving cell 3 (descending frequency f3,
Up frequency f3 ')；Serving cell 4 (descending frequency f4, up frequency f4 ') can carry out carrier aggregation.User equipment (UE) is resident
RRC connection procedures are initiated on CC1 and on CC1, CC1 is considered UE main serving cell, and CC1 is in group 1.Serving cell
CC2, CC3 and CC4 are secondary cell, in group 2.CC1 to CC4 cell designation is respectively 1~4.
Embodiment 1：
As shown in Fig. 2 the amending method of the time reference cell of present embodiment, including：
Step 201：UE initiates RRC connections on CC1, and base station configures CC2 in RRC connection reallocation messages to UE, CC3 and
CC4 information and grouping information；
CC1 is main serving cell, and it is auxiliary serving cell to be grouped 1, CC2~CC4, is grouped 2；
Step 202：Base station activates CC2~CC4 when UE is in RRC connection status, and indicates to initiate to connect at random on CC2
Enter process and complete uplink synchronous；Upward signal can be sent on CC2~CC4 after the completion uplink synchronous of group 2, CC2 is as group 2
Time reference cell；
Step 203：After a period of time, when base station needs to delete CC2, send the instruction of RRC connections reallocation message and delete
CC2, and the time reference cell that CC3 is group 2 is indicated in the message；
Step 204：UE is received first using the time reference cell that CC3 is group 2 after RRC connection reallocation messages, then by CC2
Delete；
Step 205：UE sends RRC connections to base station and matches somebody with somebody response message again；
Step 206：After a period of time, base station sends RRC connection reallocation messages and CC3 is adjusted in group 1, and in the message
Indicate the time reference cell that CC4 is group 2；
Step 207：UE is the time reference cell of group 2 using CC4 first after receiving RRC information, then CC3 is configured into group
In 1；
Step 208：UE sends RRC connections to base station and matches somebody with somebody response message again.
Embodiment 2：
As shown in figure 3, the amending method of the time reference cell of present embodiment, including：
Step 301：UE initiates RRC connections on CC1, base station in RRC connection reallocation messages to UE configure CC2, CC3 and
CC4 information and grouping information；
CC1 is main serving cell, and it is auxiliary serving cell to be grouped 1, CC2~CC4, is grouped 2.
Step 302：Base station activates CC2~CC4 when UE is in RRC connection status, and indicates to initiate to connect at random on CC2
Enter process and complete uplink synchronous；Upward signal can be sent on CC2~CC4 after the completion uplink synchronous of group 2, CC2 is as group 2
Time reference cell；
Step 303：After a period of time, base station needs to delete CC2, sends the instruction of RRC connections reallocation message and deletes CC2,
And the time reference cell that CC3 is group 2 is indicated in the message；
Step 304：UE first deletes CC2 after receiving RRC connection reallocation messages, reapplies the time reference that CC3 is group 2
Cell；
Step 305：UE sends RRC connections to base station and matches somebody with somebody response message again；
Step 306：After a period of time, base station sends RRC connection reallocation messages and CC3 is adjusted in group 1, and in the message
Indicate the time reference cell that CC4 is group 2；
Step 307：CC3 is configured in group 1 by UE first after receiving RRC information, reapplies the time reference that CC4 is group 2
Cell；
Step 308：UE sends RRC connections to base station and matches somebody with somebody response message again.
Embodiment 3：
As shown in figure 4, the amending method of the time reference cell of present embodiment, including：
Step 401：UE initiates RRC connections on CC1, and base station configures CC2 in RRC connection reallocation messages to UE, CC3 and
CC4 information and grouping information；
CC1 is main serving cell, and it is auxiliary serving cell to be grouped 1, CC2~CC4, is grouped 2.
Step 402：Base station activates CC2~CC4 when UE is in RRC connection status, and indicates to initiate to connect at random on CC2
Enter process and complete uplink synchronous；Upward signal can be sent on CC2~CC4 after the completion uplink synchronous of group 2, CC2 is as group 2
Time reference cell；
Step 403：After a period of time, base station needs to delete CC2, and base station sends the instruction of RRC connections reallocation message and deleted
CC2；
Step 404：UE first deletes CC2 after receiving RRC information, and reselection is simultaneously small using the time reference that CC3 is group 2
Area；
Step 405：UE sends RRC connections to base station and matches somebody with somebody response message again；
Step 406：After a period of time, base station sends RRC connection reallocation messages and CC3 is adjusted in group 1；
Step 407：UE is received and CC3 is configured in group 1 first after RRC information, reselection and application CC4 be group 2 when
Between reference cell；
Step 408：UE sends RRC connections to base station and matches somebody with somebody response message again.
Embodiment 4：
As shown in figure 5, the amending method of the time reference cell of present embodiment, including：
Step 501：UE initiates RRC connections on CC1, and base station configures CC2 in RRC connection reallocation messages to UE, CC3 and
CC4 information and grouping information；
CC1 is main serving cell, and it is auxiliary serving cell to be grouped 1, CC2~CC4, is grouped 2.
Step 502：Base station activates CC2~CC4 when UE is in RRC connection status, and indicates to initiate to connect at random on CC2
Enter process and complete uplink synchronous；Upward signal can be sent on CC2~CC4 after the completion uplink synchronous of group 2, CC2 is as group 2
Time reference cell；
Step 503：After a period of time, base station needs to delete CC2, and base station sends the instruction of RRC connections reallocation message and deleted
CC2；
Step 504：UE is selected first after receiving RRC information and the time reference cell using CC3 for group 2, then CC2 is deleted
Remove；
Step 505：UE sends RRC connections to base station and matches somebody with somebody response message again；
Step 506：After a period of time, base station sends RRC connection reallocation messages and CC3 is adjusted in group 1；
Step 507：UE is selected first after receiving RRC information and the time reference cell using CC4 for group 2, then CC3 is matched somebody with somebody
Put in group 1；
Step 508：UE sends RRC connections to base station and matches somebody with somebody response message again.
Embodiment 5：
As shown in fig. 6, the amending method of the time reference cell of present embodiment, including：
Step 601：UE initiates RRC connections on CC1, and base station configures CC2 in RRC connection reallocation messages to UE, CC3 and
CC4 information and grouping information；
CC1 is main serving cell, and it is auxiliary serving cell to be grouped 1, CC2~CC4, is grouped 2.
UE auxiliary serving cell packet in cell, as on CC2~CC4 complete down-going synchronous after, can with start recording this
The downgoing time of several cells is poor, and if CC2 downgoing time is DL_T2, CC3 downgoing time is DL_T3, CC4 it is descending when
Between be DL_T4, UE can know that CC2 and CC3 downgoing time difference is DL_T2-DL_T3, and equally, UE can know CC3 and CC4
Downgoing time difference be that DL_T3-DL_T4, CC2 and CC4 downgoing time difference is DL_T2-DL_T4, and descending connect according to newest
Receipts are updated, and renewal can be real-time, i.e., often receive one it is descending just recalculate once, or renewal be timing,
Updated again after a period of time, update method can be the average value using the time difference of this period.
Step 602：Base station activates CC2~CC4 when UE is in RRC connection status, and indicates to initiate to connect at random on CC2
Enter process and complete uplink synchronous；Upward signal can be sent on CC2~CC4 after the completion uplink synchronous of group 2, CC2 is as group 2
Time reference cell, current TA are TA1；
UE adjusts TA1 according to the TAC of base station or voluntarily adjusts TA1, no matter carry out that what kind of adjustment is referred to as TA1, i.e.,
TA1 can change.
Step 603：After a period of time, measurement report that base station reports according to UE, it is found that CC2 signal is deteriorated, it is necessary to go
CC2 is activated, sends the order for deactivating CC2 to UE；
Step 604：After UE receives the order for deactivating CC2, new cell such as CC3 is voluntarily selected as new time reference
Cell, and new TA such as TA2 are calculated according to new time reference cell, (such as receive deactivation command while CC2 is deactivated
After 8ms), using new TA；
As shown in fig. 7, UE voluntarily calculates new TA (TA2), can be according to new time reference cell CC3 and original time
Reference cell CC2 downgoing time poor and current TA1 is calculated：Time reference the cell new current TA+ of new TA=
The downgoing time of downgoing time-original time reference cell, wherein, downgoing time-ginseng of original time of new time reference cell
Examine downgoing time=DL_T3-DL_T2 of cell, be exactly CC2 and CC3 downgoing time it is poor, so TA2=TA1+DL_T3-DL_
T2。
In this step, UE can not also voluntarily adjust TA, i.e., directly use current TA1.
Step 605：After a period of time, CC3 packet data inactivity timer time-out, UE voluntarily selects such as CC4 conducts of new cell
New time reference cell, and new TA values are calculated according to new time reference cell, (such as deactivated while CC3 is deactivated
During active timer time-out), using new TA values, the same step 4 of computational methods of new TA values；
In above-mentioned steps four, if current time reference cell is CC3, then current TA is TA2, when CC3 is deactivated
After work, UE selects CC2 as time reference, then the downgoing time of the time reference cell of new TA=current TA values+new-original
The downgoing time of time reference cell, it is exactly TA1=TA2+DL_T2-DL_T3.
As shown in figure 8, present embodiment additionally provides a kind of modification device of time reference cell, including：Modification opportunity
Determining unit and time reference cell setting unit, wherein：
Modification opportunity determining unit, it is used to determine whether to need the time reference cell for changing auxiliary serving cell packet；
Time reference cell setting unit, for determining needing to change auxiliary serving cell point in modification opportunity determining unit
During the time reference cell of group, the time reference of auxiliary serving cell packet will be first arranged to as the cell of time reference cell
Cell, afterwards, make original time reference cell unavailable in auxiliary serving cell packet；Or first make original time reference small
Area is unavailable in auxiliary serving cell packet, afterwards, auxiliary serving cell point will be arranged to as the cell of time reference cell
The time reference cell of group；Or make original time reference cell auxiliary serving cell packet in it is disabled simultaneously, Jiang Yaozuo
The time reference cell of auxiliary serving cell packet is arranged to for the cell of time reference cell.
Modification opportunity determining unit, need to be deleted specifically for the time reference cell that is grouped in auxiliary serving cell or
Be fitted on again auxiliary serving cell packet outside other packet or deactivate when, it is determined that need change auxiliary serving cell packet when
Between reference cell.
Modification opportunity determining unit, specifically for according to base station the time reference cell that auxiliary serving cell is grouped need by
Delete or be fitted on again auxiliary serving cell packet outside other packet when, the deletion of transmission or again with auxiliary serving cell packet when
Between reference cell notice, know need change auxiliary serving cell packet time reference cell；Or,
When the time reference cell for judging auxiliary serving cell packet needs to be deactivated, knowing needs to change auxiliary service
The time reference cell of cell group.
Modification opportunity determining unit, specifically for the time being grouped in the deactivation auxiliary serving cell for receiving base station transmission
The order of reference cell, or the packet data inactivity timer time-out of time reference cell, judge the time of auxiliary serving cell packet
Reference cell needs to be deactivated.
The device also includes time reference cell determining unit, wherein：
Time reference cell determining unit, for knowing to the cell as time reference cell according to the notice of base station；
Or voluntarily in the cell from auxiliary serving cell packet in addition to original time reference cell, selecting a cell to be used as will conduct
The cell of time reference cell.
The device also includes：Timing Advance determining unit, wherein：
Timing Advance determining unit, for time reference cell determining unit voluntarily from auxiliary serving cell packet in
In cell in addition to original time reference cell, after selecting cell of the cell as time reference cell to be used as, according to institute
The cell of selection calculates new Timing Advance (TA), or uses current TA, wherein, selected by the current TA+ of new TA=
The downgoing time of the downgoing time of cell-original time reference cell.
The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.Within the spirit and principles of the invention, that is made any repaiies
Change, equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (10)
- A kind of 1. amending method of time reference cell, it is characterised in that including：User equipment, first will be as time reference cell when needing to change the time reference cell of auxiliary serving cell packet Cell is arranged to the time reference cell of auxiliary serving cell packet, afterwards, makes original time reference cell in auxiliary serving cell point It is unavailable in group；, afterwards, will or user equipment first makes original time reference cell unavailable in auxiliary serving cell packet The time reference cell of auxiliary serving cell packet is arranged to as the cell of time reference cell；Or user equipment makes original Having time reference cell auxiliary serving cell packet in it is disabled simultaneously, will be arranged to as the cell of time reference cell The time reference cell of auxiliary serving cell packet；Wherein, user equipment knows to the cell as time reference cell, including：The user equipment voluntarily in the cell from auxiliary serving cell packet in addition to original time reference cell, selects Selecting a cell will be as the cell of time reference cell as described in；Wherein, the user equipment voluntarily from the auxiliary serving cell packet in it is small in addition to original time reference cell Qu Zhong, select a cell described in asing will after the cell as time reference cell, according to selected cell calculating it is new when Between lead TA, or use current TA.
- 2. the method as described in claim 1, it is characterised in that need to change the time reference cell of auxiliary serving cell packet Situation is：The time reference cell of the auxiliary serving cell packet needs to be deleted or be fitted on again outside auxiliary serving cell packet Other packet or deactivate.
- 3. method as claimed in claim 2, it is characterised in that user equipment know need change auxiliary serving cell packet when Between reference cell mode, including：Base station needs to be deleted or be fitted on auxiliary serving cell again to be grouped it in the time reference cell that the auxiliary serving cell is grouped During other outer packets, notify that the user equipment is deleted or the time reference cell again with auxiliary serving cell packet, institute State user equipment and know the time reference cell for needing to change auxiliary serving cell packet；OrWhen the time reference cell for judging the auxiliary serving cell packet needs to be deactivated, know needs the user equipment Change the time reference cell of auxiliary serving cell packet.
- 4. method as claimed in claim 3, it is characterised in that judge the time reference cell of the auxiliary serving cell packet Need to be deactivated, including：The user equipment receives the order of the time reference cell of the deactivation auxiliary serving cell packet of base station transmission, or The packet data inactivity timer time-out of the time reference cell.
- 5. the method as described in claim 1, it is characterised in that new Timing Advance, bag are calculated according to selected cell Include：The downgoing time of the downgoing time of cell selected by the current TA+ of new TA=-original time reference cell.
- 6. method as claimed in claim 2, it is characterised in that described to make original time reference cell be grouped in auxiliary serving cell In it is unavailable, with need change auxiliary serving cell packet time reference cell situation it is corresponding, be respectively：To the auxiliary clothes The time reference cell of business cell group is deleted or is fitted on again other packets outside auxiliary serving cell packet or deactivated It is living.
- A kind of 7. modification device of time reference cell, it is characterised in that including：Modification opportunity determining unit and time reference are small Area's setting unit, wherein：The modification opportunity determining unit, it is used to determine whether to need the time reference cell for changing auxiliary serving cell packet；The time reference cell setting unit, for being determined in the modification opportunity determining unit to need to change auxiliary service small During the time reference cell of differentiation group, the time of auxiliary serving cell packet will be first arranged to as the cell of time reference cell Reference cell, afterwards, make original time reference cell unavailable in auxiliary serving cell packet；Or first join original time Examine cell auxiliary serving cell packet in it is unavailable, afterwards, will be used as time reference cell cell setting supplemented by service it is small The time reference cell of differentiation group；Or make original time reference cell auxiliary serving cell packet in it is disabled simultaneously, will The time reference cell of auxiliary serving cell packet is arranged to as the cell of time reference cell；The modification device of the time reference cell also includes time reference cell determining unit, wherein：The time reference cell determining unit, for voluntarily removing original time reference from auxiliary serving cell packet In cell outside cell, select a cell will be as the cell of time reference cell as described in；The modification device of the time reference cell also includes Timing Advance determining unit, wherein：The Timing Advance determining unit, for the time reference cell determining unit voluntarily from it is described it is auxiliary service it is small In cell in differentiation group in addition to original time reference cell, select to be used as time reference cell described in cell conduct Cell after, new Timing Advance TA is calculated according to selected cell, or use current TA, wherein, the new TA The downgoing time of downgoing time-original time reference cell of cell selected by=current TA+.
- 8. device as claimed in claim 7, it is characterised in that：The modification opportunity determining unit, need to be deleted specifically for the time reference cell being grouped in the auxiliary serving cell Except or be fitted on again auxiliary serving cell packet in addition to other packet or deactivate when, it is determined that need change auxiliary serving cell packet Time reference cell.
- 9. device as claimed in claim 8, it is characterised in that：The modification opportunity determining unit, specifically for the time reference cell need being grouped according to base station in the auxiliary serving cell It is to be deleted or be fitted on again outside auxiliary serving cell packet other packets when, the deletion of transmission or match somebody with somebody the auxiliary serving cell again The notice of the time reference cell of packet, know the time reference cell for needing to change auxiliary serving cell packet；Or,When the time reference cell for judging the auxiliary serving cell packet needs to be deactivated, knowing needs to change auxiliary service The time reference cell of cell group.
- 10. device as claimed in claim 9, it is characterised in that：The modification opportunity determining unit, specifically for the time being grouped in the deactivation auxiliary serving cell for receiving base station transmission The order of reference cell, or the packet data inactivity timer time-out of the time reference cell, judge the auxiliary serving cell point The time reference cell of group needs to be deactivated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210073088.0A CN103327646B (en) | 2012-03-19 | 2012-03-19 | A kind of amending method and device of time reference cell |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210073088.0A CN103327646B (en) | 2012-03-19 | 2012-03-19 | A kind of amending method and device of time reference cell |
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| CN103327646A CN103327646A (en) | 2013-09-25 |
| CN103327646B true CN103327646B (en) | 2018-04-06 |
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| WO2016119174A1 (en) * | 2015-01-29 | 2016-08-04 | 华为技术有限公司 | Multi-carrier aggregation communication method and device |
| CN110475358B (en) | 2018-05-11 | 2024-06-28 | 华为技术有限公司 | Communication method and communication device |
| CN110636641B (en) * | 2018-06-25 | 2021-10-15 | 维沃移动通信有限公司 | CA configuration information processing method and terminal |
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| CN102215599A (en) * | 2010-04-05 | 2011-10-12 | 中兴通讯股份有限公司 | Method for determining downlink time reference |
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