CN105188109B - A kind of selection method of the PUCCH SCell in more than 5 carrier aggregation scenes - Google Patents
A kind of selection method of the PUCCH SCell in more than 5 carrier aggregation scenes Download PDFInfo
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- CN105188109B CN105188109B CN201510640044.5A CN201510640044A CN105188109B CN 105188109 B CN105188109 B CN 105188109B CN 201510640044 A CN201510640044 A CN 201510640044A CN 105188109 B CN105188109 B CN 105188109B
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- 238000004220 aggregation Methods 0.000 title claims abstract description 23
- 238000010187 selection method Methods 0.000 title claims abstract description 19
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 41
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- 238000004891 communication Methods 0.000 claims description 6
- 230000014759 maintenance of location Effects 0.000 claims description 4
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- 230000000977 initiatory effect Effects 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 description 7
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- H—ELECTRICITY
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- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
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Abstract
The invention discloses a kind of selection methods of the PUCCH SCell in more than 5 carrier aggregation scenes, when the TA time-out of the PUCCH SCell in Secondary PUCCH group, PUCCH SCell classify to the SCell of the Secondary PUCCH group, the TA values of PUCCH SCell selections sTAG are minimum, and the SCell of SCell load minimums is as new PUCCH SCell.It can be seen that, new scheduling is made to the SCell in Secondary PUCCH group by eNB, the timeout issue of PUCCH SCell can be avoided to cause the termination transmission of entire Secondary PUCCH group SCell, can more rationally and effectively utilize available resources.
Description
Technical field
The present invention relates to wireless communication technology fields, more particularly, to 3GPP LTE/LTE-A technical fields, especially
It is related to a kind of selection method of the PUCCH SCell in more than 5 carrier aggregation scenes.
Background technology
In long term evolution（Long Term Evolution, LTE）In cordless communication network, can by carrier wave polymerization come
Improve UE（User Equipment, user equipment）Uplink and downlink rate.3GPP starts from R10 to the work that carrier wave polymerize, mainly
It is the support of the carrier wave polymerization subject under discussion on basis.Then, the interior TDD of band of different uplink-downlink configurations is gradually supported（Time division duplex）It carries
Wave polymerize and the interstructural polymerization-TDD-FDD CA of different frame（TDD-FDD carrier waves polymerize）.
LAA（Exempt to authorize frequency spectrum）New field, CA (Carrier have been opened up for LTE carrier aggregation subject under discussion
Aggregation, carrier wave polymerization) technology can 5GHz exempt from authorize frequency spectrum to obtain higher gain.WLAN is worked at present
On the frequency band of 5GHz, the bandwidth of 80MHz and 160MHz is supported（Continue to use 2 scenes of 802.11ac Wave）.In addition to exempting to authorize frequency spectrum,
3.5GHz is another selection of carrier wave polymerization.In order to efficiently use the similar bandwidth of LTE, in R13,3GPP polymerize carrier wave
It is proposed new evolution tendency --- support that the carrier wave more than 5 carrier waves polymerize（At least supported in downlink）, can be more effectively sharp
Communication requirement is coped with usable spectrum resource.
For the carrier wave polymerization more than 5 carrier waves, 3GPP proposes new concept --- " PUCCH Cell Groups
（PUCCH CG, physical uplink control channel cell group）", i.e., by it is all polymerize small be distinguished into two or more
PUCCH CG, wherein containing PCell（Main plot）PUCCH CG be known as Primary PUCCH group（Main PUCCH cells
Group）, another or other PUCCH CG are known as Secondary PUCCH group（Auxiliary PUCCH cell groups）, Secondary
The SCell that PUCCH is carried in PUCCH group is referred to as PUCCH SCell（PUCCH secondary cells）.
Because introducing new PUCCH, work as sTAG（Auxiliary TA groups）TA（Timing advance）Time-out, especially PUCCH
The TA time-out of sTAG where SCell can extreme influence PUCCH if handling the TA timeout issues with existing protocol at this time
The service efficiency of SCell, very maximum probability terminate the transmission of Secondary PUCCH group, influence efficiency of transmission, this and introducing
The purpose that the carrier wave more than 5 carrier waves polymerize is supported to disagree.
Invention content
In order to solve the above-mentioned technical problem, it is an object of the invention to propose one kind in more than 5 carrier aggregation scenes
The selection method of PUCCH SCell, in the carrier aggregation scene more than 5 carrier waves, when the TA time-out of the sTAG of PUCCH SCell
When, eNB makes new scheduling to Secondary PUCCH group other SCell belonging to PUCCH SCell, should with processing
The problem of TA time-out is brought.
A kind of selection method of the PUCCH SCell in more than 5 carrier aggregation scenes, including：
Step 1：When the TA time-out of the sTAG comprising PUCCH SCell, UE is to the Secondary belonging to PUCCH SCell
All SCell in PUCCH group make classification；
Step 2：UE discharges all SCell's in the Secondary PUCCH group belonging to the PUCCH SCell
SRS and HARQ buffer, and deactivate；UE initiates PUCCH SCell RACH to PUCCH SCell；
Step 3：After the PUCCH SCell RACH for receiving UE transmissions, PUCCH SCell are used PUCCH SCell
The identical sorting technique of step 1 makes all SCell in the Secondary PUCCH group belonging to PUCCH SCell
Classification；
Step 4：PUCCH SCell selected in the first kind, the second class and third class SCell suitable SCell as
New PUCCH SCell；
Step 5：If PUCCH SCell select first kind SCell as new PUCCH SCell, step 6 is executed；If
PUCCH SCell select the second class or third class SCell as new PUCCH SCell, execute step 7；
Step 6：PUCCH SCell are fed back to UERA Response, then execute step 8；
Step 7：PUCCH SCell send new PUCCH SCell configuration informations to PCell by X2 interface mode, no
It is fed back to UERA Response；After receiving new PUCCH SCell configuration informations, PCell sends corresponding to UERACH-configDedicatedor PDCCH order, then execute step 8；
Step 8：UE according toRA ResponseOrRACH-config Dedicatedor PDCCH orderIt continues to complete
Follow-up random access procedure；
Step 9：PCell sends new Secondary PUCCH group configuration informations to UE, PCell and new
The Secondary PUCCH group configuration informations of PUCCH SCell update storages, UE complete the addition of SCell, positive normal open
Letter.
Wherein, in step 1：When the TA time-out of the sTAG comprising PUCCH SCell, UE is to belonging to PUCCH SCell
Before all SCell in Secondary PUCCH group make classification, further include：
Step a：UE is initially accessed；
Step b：UE completes the addition of SCell according to configuration information, carries out normal transmission.
Wherein, the step a：UE is initially accessed, specially：
UE is in Idle state, and to eNB initiating random access procedures, eNB sends Secondary according to certain criterion to UE
PUCCH group configuration informations, and PCell and PUCCH SCell preserve the configuration of current Secondary PUCCH group
Information.
Wherein, in the step 1, to all in the Secondary PUCCH group belonging to PUCCH SCell
SCell classification method be：
A) PUCCH SCell itself are defined as first kind SCell；
B) will belong to Secondary PUCCH group, and with PUCCH SCell the same sTAG all SCell
It is defined as the second class SCell；
C) for belonging to Secondary PUCCH group, but not with PUCCH SCell in the same sTAG
SCell：
If all SCell that the sTAG belonging to SCell is included belong to Secondary PUCCH group, definition should
SCell is third class SCell；
It is fixed if all SCell that the sTAG belonging to SCell is included not exclusively belong to Secondary PUCCH group
The justice SCell is the 4th class SCell.
Wherein, the step 4：PUCCH SCell are selected suitably in the first kind, the second class and third class SCell
SCell is as the method for new PUCCH SCell：
Step 1：ENB is calculated according to the ramdom access preamble that UE is transmitted between UE and PUCCH SCell
New propagation delay time updates TA values；
Step 2：The TA values for comparing each sTAG filter out the sTAG of minimum TA values；
Step 3：Select the SCell of minimum load as new PUCCH SCell in the sTAG of minimum TA values.
Wherein, in the step 9, PCell sends new Secondary PUCCH group configuration informations to UE, have with
Lower two methods：
Method one：Can be according to real network situation, when being initially accessed according to UE, PCell initial configurations Secondary
PUCCH group methods reconfigure；
Method two：The configuration of former Secondary PUCCH group is continued to use as far as possible.
Wherein, for the processing of the 4th class SCell, PCell can be averagely negative according to current Primary PUCCH group
Situation is carried, the 4th class SCell is added in Primary PUCCH group.
A kind of selection method of the PUCCH SCell in more than 5 carrier aggregation scenes, when there is multiple Secondary
When PUCCH group, method described in any one of the above embodiments is respectively adopted for different Secondary PUCCH group and is handled.
Advantageous effect：
The selection method of PUCCH SCell in more than 5 carrier aggregation scenes of the present invention a kind of is being carried more than 5
In the carrier aggregation scene of wave, when the TA time-out of the sTAG of PUCCH SCell, eNB is to belonging to PUCCH SCell
Other SCell of Secondary PUCCH group make new scheduling, to handle the problem of TA time-out is brought.When
When the TA time-out of the sTAG of PUCCH SCell in Secondary PUCCH group, PUCCH SCell are to this
The SCell of Secondary PUCCH group classifies.The TA values of PUCCH SCell selections sTAG are minimum, and the SCell
Minimum SCell is loaded as new PUCCH SCell；If selecting first kind SCell as new PUCCH SCell, i.e.,
PUCCH SCell are constant, and PUCCH SCell are fed back to UERA response；If select the second class or third class SCell as
New PUCCH SCell, PUCCH SCell send the configuration information of new PUCCH SCell to PCell, and PCell refers to UE again
Show the configuration of Secondary PUCCH group.The technical program has the following advantages：1）Present method solves PUCCH
The coping mechanism of the TA time-out of SCell, existing protocol do not have corresponding solution；2）One kind is proposed to can be applied to
The selection method of new PUCCH SCell under the scene of the TA time-out of PUCCH SCell, this method by screen minimum TA with
The constraints of minimum load ensures that new PUCCH SCell have higher validity and stabilization than original PUCCH SCell
Property；3）In step 7, PUCCH SCell send new Secondary PUCCH group to PCell by X2 interface mode
Configuration information and continue to use former Secondary PUCCH group configuration, it is possible to reduce X2 signalings are mutually handed over and Network reconfiguration expense,
Improve the availability of frequency spectrum simultaneously, moreover it is possible to ensure the fast quick-recovery of UE communication after PUCCH SCell TA time-out；4）Based on the 4th class
SCell belongs to identical TAG with a certain SCell in PCell originally, and the 4th class SCell is determined with the loading condition of current PC ell
Whether need that Primary PUCCH group are added, ensure that the assigned reasonability of SCell.
Description of the drawings
Fig. 1：A kind of selection for PUCCH SCell in more than 5 carrier aggregation scenes that the specific embodiment of the invention provides
The flow chart of method.
Fig. 2：A kind of schematic diagram of a scenario for carrier wave polymerization being more than 5 carrier waves that the specific embodiment of the invention provides.
Explanation of nouns：
LTE long term evolutions
TDD time division duplexs
FDD frequency division duplex
TDD-FDD CA TDD-FDD carrier waves polymerize
LAA exempts to authorize frequency spectrum
WLAN Wireless LAN
PUCCH physical uplink control channels
PUCCH Cell Groups PUCCH cell groups
The main PUCCH cell groups of Primary PUCCH group
The auxiliary PUCCH cell groups of Secondary PUCCH group
The main plots PCell
SCell secondary cells
ENB evolved base stations
TA timing advances
TAG TA groups
The main TA groups of pTAG
The auxiliary TA groups of sTAG
The base stations eNB
SRS detection reference signals
HARQ hybrid automatic repeat-requests
RACH random access channel.
RA random access
RACH-configDedicatedor PDCCH order configure dedicated random access channel PDCCH orders
RA ResponseRandom access response
Ramdom access preamble random access guidings.
Specific implementation mode
Technical solution of the present invention is described in detail in the following with reference to the drawings and specific embodiments as follows：
Fig. 1：A kind of selection for PUCCH SCell in more than 5 carrier aggregation scenes that the specific embodiment of the invention provides
The flow chart of method.As shown in Figure 1, the selection of PUCCH SCell in more than 5 carrier aggregation scenes of the present invention a kind of
Method, including：
Step a：UE is initially accessed；Specially：
UE is in Idle state, and to eNB initiating random access procedures, eNB sends Secondary according to certain criterion to UE
PUCCH group configuration informations, and PCell and PUCCH SCell preserve the configuration of current Secondary PUCCH group
Information.
Fig. 2：A kind of schematic diagram of a scenario for carrier wave polymerization being more than 5 carrier waves that the specific embodiment of the invention provides.Such as Fig. 2 institutes
Show, in the scene polymerizeing more than the carrier wave of 5 carrier waves, the distribution of TAG is likely to occur a variety of situations, below with two PUCCH CG
For, referring specifically to Fig. 2：
There are PCell and SCell 7 in Primary PUCCH group.
There are 7 SCell in Secondary PUCCH group, is PUCCH SCell, 1 SCell, SCell respectively
2, SCell 3, SCell 4, SCell 5 and SCell 6.
The scene shares 5 TAG, is pTAG, sTAG 1, sTAG 2, sTAG 3 and sTAG 4 respectively.Wherein, PCell belongs to
In pTAG；PUCCH SCell and SCell 1 belongs to sTAG 1；SCell 2 and SCell 3 belong to sTAG 2；4 Hes of SCell
SCell 5 belongs to sTAG 3；SCell 5 and SCell 6 belong to sTAG 7.
PCell and PUCCH SCell preserve the configuration information of current Secondary PUCCH group.
Step b：UE completes the addition of SCell according to configuration information, carries out normal transmission.
UE completes the addition of SCell according to configuration information, and SCell described here refers to Secondary PUCCH
It includes which that the configuration of Scell in group, Secondary PUCCH group, which include to the Secondary PUCCH group,
A little SCell, which SCell are the frequency etc. of PUCCH SCell and these SCell, together constitute configuration information, be by
PCell is determined according to certain criterion, and the configuration information is then sent to UE, and UE is communicated according to instruction with SCell.
After completing above-mentioned steps a, step b, this method mainly includes the following steps that：
Step 1：When the TA time-out of the sTAG comprising PUCCH SCell, UE is to the Secondary belonging to PUCCH SCell
All SCell in PUCCH group make classification；
It should be noted that before step 1, further include：
It is first, right when the TA time-out for the sTAG in Secondary PUCCH group including PUCCH SCell
All SCell in Secondary PUCCH group classify.To the Secondary PUCCH belonging to PUCCH SCell
In group all SCell classification method be：
A) PUCCH SCell itself are defined as first kind SCell；
B) will belong to Secondary PUCCH group, and with PUCCH SCell the same sTAG all SCell
It is defined as the second class SCell；
C) for belonging to Secondary PUCCH group, but not with PUCCH SCell in the same sTAG
SCell：
If all SCell that the sTAG belonging to SCell is included belong to Secondary PUCCH group, definition should
SCell is third class SCell；
It is fixed if all SCell that the sTAG belonging to SCell is included not exclusively belong to Secondary PUCCH group
The justice SCell is the 4th class SCell.
By taking Fig. 2 as an example, for PUCCH SCell itself, it is defined as first kind SCell；
Secondary PUCCH group will be belonged to, and determined in all SCell of the same sTAG with PUCCH SCell
Justice is that the second class SCell, SCell 1 belongs to the second class SCell；
For belonging to Secondary PUCCH group, but not with PUCCH SCell in the same sTAG, and it is affiliated
STAG all SCell for being included belong to Secondary PUCCH group, it is third class SCell to define the SCell,
SCell 2 and SCell 3 belongs to third class SCell；Similarly, SCell 4 and SCell 5 is also defined as third class SCell；
For belonging to Secondary PUCCH group, but not with PUCCH SCell in the same sTAG, and it is affiliated
STAG all SCell for being included not exclusively belong to Secondary PUCCH group, be defined as the 4th class SCell,
SCell 6 belongs to the 4th class SCell.
Step 2：UE discharges all SCell's in the Secondary PUCCH group belonging to the PUCCH SCell
SRS and HARQ buffer, and deactivate；UE initiates PUCCH SCell RACH to PUCCH SCell；
Step 3：After the PUCCH SCell RACH for receiving UE transmissions, PUCCH SCell are used PUCCH SCell
The identical sorting technique of step 1 makes all SCell in the Secondary PUCCH group belonging to PUCCH SCell
Classification；
Step 4：PUCCH SCell selected in the first kind, the second class and third class SCell suitable SCell as
New PUCCH SCell；
Specifically, new PUCCH SCell selection methods are as follows：
Step 1：ENB is calculated according to the ramdom access preamble that UE is transmitted between UE and PUCCH SCell
New propagation delay time updates TA values；
Step 2：The TA values for comparing each sTAG filter out the sTAG of minimum TA values；
Step 3：Select the SCell of minimum load as new PUCCH SCell in the sTAG of minimum TA values.
By taking Fig. 2 as an example, first, eNB calculates UE and PUCCH according to the ramdom access preamble that UE is sent
New propagation delay time between SCell updates TAsTAG1 values；
Then, according to the configuration information of the Secondary PUCCH group recorded before, the TA values of more each sTAG take
Minimum, for example, if min { TA_sTAG1, TA_sTAG2, TA_sTAG3 }=TA_sTAG1, then selection sTAG 1 do into
One step selects；
Then select the SCell of minimum load as new PUCCH SCell in the sTAG of the minimum TA filtered out.Example
Such as, the TA values of sTAG 1 are minimum, calculate min { load_PUCCHSCell, load_SCell1 }=load_PUCCHSCell, that
Select PUCCH SCell as new PUCCH SCell, actually PUCCH SCell are constant.
Step 5：If PUCCH SCell select first kind SCell as new PUCCH SCell, step 6 is executed；If
PUCCH SCell select the second class or third class SCell as new PUCCH SCell, execute step 7；
Step 6：PUCCH SCell are fed back to UERA Response, then execute step 8；
Step 7：PUCCH SCell send new PUCCH SCell configuration informations to PCell by X2 interface mode, no
It is fed back to UERA Response；After receiving new PUCCH SCell configuration informations, PCell sends corresponding to UERACH-configDedicatedor PDCCH order, then execute step 8；
Step 8：UE according toRA ResponseOrRACH-config Dedicatedor PDCCH orderIt continues to complete
Follow-up random access procedure, i.e. UE complete new configuration；It should be noted thatRA ResponseWithRACH-config Dedicatedor PDCCH orderIt is the fixed name of two signalings as defined in agreement, in order to distinguish abbreviation, to there is this
It is indicated that italic is the generic representation method of signaling by the part of signaling with italic.
Step 9：PCell sends new Secondary PUCCH group configuration informations to UE, PCell and new
The Secondary PUCCH group configuration informations of PUCCH SCell update storages, UE complete the addition of SCell, positive normal open
Letter.
To select the SCell 2 in third class SCell as new PUCCH SCell, then PUCCH SCell are logical
The configuration information that X2 interface mode sends SCell 2 to PCell is crossed, is not fed back to UERA Response.It is new according to receiving
After PUCCH SCell configuration informations, PCell is sent to UERACH-configDedicatedor PDCCH order, instruction
UE initiates PUCCH SCell RACH to SCell 2.UE according toRACH-config Dedicatedor PDCCH orderInstruction
Continue to complete follow-up random access procedure；After UE completes random access procedure, PCell sends new Secondary to UE
The configuration information of PUCCH group, the Secondary PUCCH group configuration informations of PCell and the update storages of SCell 2,
UE completes the addition of SCell.
As it can be seen that technical solutions according to the invention, mainly solve the problems, such as to be exactly the sTAG when where PUCCH SCell
TA time-out when, eNB makes new scheduling to other SCell in Secondary PUCCH group, avoids PUCCH
The timeout issue of SCell causes the termination transmission of entire Secondary PUCCH group SCell, and this programme can more rationally
Effectively utilize available resources.
In the carrier aggregation scene more than 5 carrier waves, when the TA time-out of the sTAG of PUCCH SCell, eNB is to PUCCH
Secondary PUCCH group other SCell belonging to SCell make new scheduling, are asked with handle that the TA time-out brings
Topic.When the TA time-out of the sTAG of the PUCCH SCell in Secondary PUCCH group, PUCCH SCell are to this
The SCell of Secondary PUCCH group classifies, if selecting first kind SCell as new PUCCH SCell, i.e.,
PUCCH SCell are constant, and PUCCH SCell are fed back to UERA response；If select the second class or third class SCell as
New PUCCH SCell, PUCCH SCell send the configuration information of new PUCCH SCell to PCell, and PCell refers to UE again
Show the configuration of Secondary PUCCH group.
The technical program has the following advantages：1）Present method solves the coping mechanisms of the TA of PUCCH SCell time-out, existing
There is agreement there is no corresponding solution；2）It proposes under a kind of scene for the TA time-out can be applied to PUCCH SCell
The selection method of new PUCCH SCell, this method are ensured new by the constraints of screening minimum TA and minimum load
PUCCH SCell have higher validity and stability than original PUCCH SCell；3）In step 7, PUCCH SCell
New Secondary PUCCH group configuration informations are sent to PCell and continue to use former Secondary by X2 interface mode
PUCCH group configurations, it is possible to reduce X2 signalings are mutually handed over and Network reconfiguration expense, improve the availability of frequency spectrum simultaneously, moreover it is possible to protect
The fast quick-recovery of UE communication after card PUCCH SCell TA time-out；4）Based on the 4th class SCell originally with it is a certain in PCell
SCell belongs to identical TAG, determines whether the 4th class SCell needs that Primary is added with the loading condition of current PC ell
PUCCH group ensure that the assigned reasonability of SCell.
If that selection is first kind SCell, PUCCH SCell are directly fed back to UERA Response, it is not necessary to
It is communicated with PCell by X2 mouthfuls, only when PUCCH SCell change, just needs to notify PCell.If according to existing skill
The general rule that art uses, PUCCH SCell time-out, PCell are reconfigured, and need a large amount of reconfiguration information in PCell, newly
It is transmitted between old PUCCH SCell and UE, has a large amount of signaling mutually friendship and time overhead.So working as this method proposition meets one
First kind SCell, i.e. original PUCCH SCell are selected under fixed condition, it can be to avoid unnecessary expense.
In the present solution, in the step 9, PCell sends new Secondary PUCCH group to UE and matches confidence
Breath, there is following two methods：
Method one：Can be according to real network situation, when being initially accessed according to UE, PCell initial configurations Secondary
PUCCH group methods reconfigure；
Method two：The configuration of former Secondary PUCCH group is continued to use as far as possible.PCell is according to original Secondary
PUCCH group configuration informations indicate that UE completes the addition of SCell, i.e., the Secondary PUCCH group include SCell
2, PUCCH SCell, 1 SCell, SCell 3, SCell 4 and SCell 5, totally 6 SCell, and PUCCH SCell and
SCell 1 belongs to sTAG 1；SCell 2 and SCell 3 belong to sTAG 2；SCell 4 and SCell 5 belong to sTAG 3.
In the present solution, particularly, the processing for the 4th class SCell, PCell can be according to current Primary
PUCCH group average load situations, the 4th class SCell is added in Primary PUCCH group.One is set first
Load threshold threshold_load, if average_load_Primary PUCCH group are more than threshold_load,
PCell indicates SCell 6 being added in Primary PUCCH group to UE；If average_load_Primary
PUCCH group are less than or equal to threshold_load, and SCell 6 keeps deactivated state, waits for new scheduling.
For multiple CG（Cell Group）Scene, i.e., when there is multiple Secondary PUCCH group, for not
The selection method that PUCCH SCell described above can be respectively adopted with Secondary PUCCH group is handled.
Specific case used herein is expounded the principle of the present invention and way of example, above example
Illustrate the method and its core concept for being merely used to help understand the present invention；Meanwhile for those of ordinary skill in the art, according to
According to the thought of the present invention, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification
It should not be construed as limiting the invention.
Claims (7)
1. a kind of selection method of the PUCCH SCell in more than 5 carrier aggregation scenes, which is characterized in that including：
Step 1：When the TA time-out of the sTAG comprising PUCCH SCell, UE is to the Secondary belonging to PUCCH SCell
All SCell in PUCCH group make classification；
Step 2：UE discharge all SCell in the Secondary PUCCH group belonging to the PUCCH SCell SRS and
HARQ buffer, and deactivate；UE initiates PUCCH SCell RACH to PUCCH SCell；
Step 3：For PUCCH SCell after the PUCCH SCell RACH for receiving UE transmissions, PUCCH SCell use step
One identical sorting technique makes point all SCell in the Secondary PUCCH group belonging to PUCCH SCell
Class；
Step 4：PUCCH SCell select suitable SCell as new in the first kind, the second class and third class SCell
PUCCH SCell；
Step 5：If PUCCH SCell select first kind SCell as new PUCCH SCell, step 6 is executed；If PUCCH
SCell selects the second class or third class SCell as new PUCCH SCell, executes step 7；
Step 6：PUCCH SCell feed back RA Response to UE, then execute step 8；
Step 7：PUCCH SCell send new PUCCH SCell configuration informations to PCell by X2 interface mode, not to UE
Feed back RA Response；After receiving new PUCCH SCell configuration informations, PCell sends corresponding RACH- to UE
ConfigDedicatedor PDCCH order, then execute step 8；
Step 8：UE is continued to complete subsequently according to RA Response or RACH-config Dedicatedor PDCCH order
Random access procedure；
Step 9：PCell sends new Secondary PUCCH group configuration informations, PCell and new PUCCH to UE
The Secondary PUCCH group configuration informations of SCell update storages, UE complete the addition of SCell, normal communication；
In the step 1, to all SCell classification in the Secondary PUCCH group belonging to PUCCH SCell
Method is：
A) PUCCH SCell itself are defined as first kind SCell；
B) Secondary PUCCH group will be belonged to, and defined in all SCell of the same sTAG with PUCCH SCell
For the second class SCell；
C) for belonging to Secondary PUCCH group, but the not SCell with PUCCH SCell in the same sTAG：
If all SCell that the sTAG belonging to SCell is included belong to Secondary PUCCH group, the SCell is defined
For third class SCell；
If all SCell that the sTAG belonging to SCell is included not exclusively belong to Secondary PUCCH group, definition should
SCell is the 4th class SCell.
2. the selection method of PUCCH SCell in more than 5 carrier aggregation scenes according to claim 1 a kind of, special
Sign is, in step 1：When the TA time-out of the sTAG comprising PUCCH SCell, UE is to belonging to PUCCH SCell
Before all SCell in Secondary PUCCH group make classification, further include：
Step a：UE is initially accessed；
Step b：UE completes the addition of SCell according to configuration information, carries out normal transmission.
3. the selection method of PUCCH SCell in more than 5 carrier aggregation scenes according to claim 2 a kind of, special
Sign is, the step a：UE is initially accessed, specially：
UE is in Idle state, and to eNB initiating random access procedures, eNB sends Secondary PUCCH group to UE and matches confidence
Breath, and PCell and PUCCH SCell preserve the configuration information of current Secondary PUCCH group.
4. the selection method of PUCCH SCell in more than 5 carrier aggregation scenes according to claim 1 a kind of, special
Sign is, the step 4：PUCCH SCell select suitable SCell to make in the first kind, the second class and third class SCell
Method for new PUCCH SCell is：
Step 1：The ramdom access preamble that eNB is transmitted according to UE calculate new between UE and PUCCH SCell
Propagation delay time updates TA values；
Step 2：The TA values for comparing each sTAG filter out the sTAG of minimum TA values；
Step 3：Select the SCell of minimum load as new PUCCH SCell in the sTAG of minimum TA values.
5. the selection method of PUCCH SCell in more than 5 carrier aggregation scenes according to claim 1 a kind of, special
Sign is, in the step 9, PCell sends new Secondary PUCCH group configuration informations to UE, has following two
Method：
Method one：Can be according to real network situation, when being initially accessed according to UE, PCell initial configuration Secondary PUCCH
Group methods reconfigure；
Method two：Continue to use the configuration of former Secondary PUCCH group.
6. the selection method of PUCCH SCell in more than 5 carrier aggregation scenes according to claim 1 a kind of, special
Sign is that the processing for the 4th class SCell, PCell can be according to current Primary PUCCH group average load feelings
4th class SCell is added in Primary PUCCH group by condition.
7. a kind of selection method of the PUCCH SCell in more than 5 carrier aggregation scenes, which is characterized in that multiple when having
When Secondary PUCCH group, it is any that claim 1-6 is respectively adopted for different Secondary PUCCH group
Method processing described in.
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| WO2018048203A1 (en) | 2016-09-06 | 2018-03-15 | Samsung Electronics Co., Ltd. | Apparatus and method for selecting cell in wireless communication system |
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| WO2013178612A1 (en) * | 2012-05-29 | 2013-12-05 | Nokia Siemens Networks Oy | Timing advance management in the presence of repeaters and remote radio heads |
| CN103716897A (en) * | 2012-09-29 | 2014-04-09 | 中兴通讯股份有限公司 | Information transmission method and device based on carrier aggregation |
| CN103843425A (en) * | 2012-08-31 | 2014-06-04 | 华为技术有限公司 | Method for adding secondary cell, base station and terminal |
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| WO2013178612A1 (en) * | 2012-05-29 | 2013-12-05 | Nokia Siemens Networks Oy | Timing advance management in the presence of repeaters and remote radio heads |
| CN103843425A (en) * | 2012-08-31 | 2014-06-04 | 华为技术有限公司 | Method for adding secondary cell, base station and terminal |
| CN103716897A (en) * | 2012-09-29 | 2014-04-09 | 中兴通讯股份有限公司 | Information transmission method and device based on carrier aggregation |
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