CN105099605B - The method and device changed for main plot in doubly-linked welding system - Google Patents
The method and device changed for main plot in doubly-linked welding system Download PDFInfo
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- CN105099605B CN105099605B CN201410192910.4A CN201410192910A CN105099605B CN 105099605 B CN105099605 B CN 105099605B CN 201410192910 A CN201410192910 A CN 201410192910A CN 105099605 B CN105099605 B CN 105099605B
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Abstract
The present invention describes a kind of method and device changed for main plot in doubly-linked welding system, include user equipment receive come from master base station about the main plot alteration command from base station；After main plot alteration command is received, the channel quality instruction index that goes beyond the scope is indicated to being sent from base station；According to the transmission block time slot come from Physical Downlink Shared Channel received, the encapsulation of ACK or NACK in corresponding Physical Uplink Control Channel is determined；And it continues to come from the physical mixed automatic re-transmission indicating channel from the first main plot of base station after main plot alteration command is received, utilize the solution of the present invention, it not only solves since the problem of caused channel-quality feedback, HARQ feedback are fuzzy is changed in the main plot for not performing random access procedure, and make smoothly transmit data during main plot is changed from base station and user equipment, contribute to the promotion of spectrum efficiency.
Description
Technical field
The present invention relates generally to main plots in the doubly-linked welding system in LTE communication field more particularly to LTE communication system
The method and device of change.
Background technology
E-UTRAN supports doubly-linked welding system, wherein user equipment (UE：User Equipment) it can utilize by master base station
(MeNB：Master eNB) and from base station (SeNB：Secondary eNB) provide radio resource.Master base station and from base station it
Between connected by the return link of imperfection by X2 interface.User equipment accesses master base station and establishes RRC connections in macrocell,
User equipment and there is no wireless heterogeneous networks (RRC from base station：Radio Resource Control) connection is user from base station
The parameter of device configuration needs to be sent to user equipment by RRC signaling from master base station.In general, the covering of master base station jurisdiction district
Range is bigger and the coverage area from base station jurisdiction district is smaller.When the user device configuration for from base station being dual link one
During a or multiple serving cells, one of serving cell is more special, and for the user equipment, the serving cell is configured with object
Manage uplink control channel (PUCCH：Physical Uplink Control Channel), which is known as principal and subordinate's service
Cell (pSCell, primary Secondary Cell) for simplicity, main plot is collectively referred to as in the present invention.In doubly-linked
In welding system, it is made of the serving cell that a user equipment is configured there are two subset：Macrocell set (MCG：Master
Cell Group), the serving cell including master base station；From set of cells (SCG：Secondary Cell Group), packet
Include the serving cell from base station.It, can be according to from set of cells from the main plot in set of cells according to the progress of 3GPP
Changing process (SCG Modification procedure) and change.In the process, it is able to decide whether to need from base station
Random access procedure, for example, depending on whether the main plot after original main plot and change belongs to same timing advance group
(TAG：Timing Advanced Group).It means that if the main plot after original main plot and change belongs to same
A TAG can also be changed without random access procedure from the main plot of base station.
As shown in Figure 1, user equipment, there are two the serving cell for belonging to SCG, the first main plot is original main plot, the
Two main plots are the main plot behind new main plot i.e. change.If user equipment receives main plot change in subframe 4
Instruction (instruction is such as RRC signaling, is sent from master base station to user equipment), then since subframe 4, main plot second
Main plot, user equipment should send channel quality instruction (CQI on the PUCCH of the second main plot：Channel Quality
Indicator) index, ACK/NACK feedbacks.
Assuming that being configured according to CQI, user equipment should report CQI in subframe 5.Before subframe 4, the first main plot is
The main plot of user equipment, user equipment obtain and the first main plot 1 associated CQI of subframe (i.e. in subframe 1, Yong Hushe
The CQI of standby the first main plot obtained), but user equipment can't obtain with 1 associated CQI of the subframe of the second main plot,
This is because user equipment is thought not needing to report with 1 associated CQI of the subframe of the second main plot.After subframe 4, Yong Hushe
It is standby by the second main plot as main plot, user equipment should report with 1 associated CQI of the subframe of the second main plot, still
There is no the 1 associated CQI of subframe for obtaining the second main plot for user equipment, this has resulted in CQI and has reported the problem of fuzzy.
Assuming that user equipment receives Physical Downlink Shared Channel simultaneously in the subframe 1 of the first main plot and the second main plot
(PDSCH：Physical Downlink Shared Channel) transmission data, according to the uplink of 3GPP agreement defineds
ACK or NACK time slots, user equipment should report ACK or NACK in such as subframe 5, and (FDD system, the time slot of TDD system correspond to
Relationship slightly has difference).If using the form 1b of PUCCH, table 1 of the user equipment in such as 3GPP36.213 performs transmission block
(TB：Transport Block) and serving cell mapping.
Wherein, main plot refers to original main plot or new main plot, j represent PUCCH resource index and 0≤
J≤A-1 and A ∈ { 2,3,4 }, if main plot refers to new main plot namely the second main plot.User equipment is receiving
Whether have the predefined time slot of PUCCH of the time enough in the second main plot after the instruction of main plot change, for example, subframe 5 to
The mapping relations sent after the change of main plot from base station 200 can be another problem.In addition, the physics that user equipment needs receive
Combining retransmission indicating channel (PHICH：Physical HARQ Indication Channel) it is also possible to change in main plot
It is missed during more.
The mapping relations of table 1TB and serving cell on PUCCH format 1b HARQ-ACK
In order to solve to change the caused above problem by the main plot for not performing random access procedure, the present invention proposes
The scheme of corresponding physical layer enhancing.
Invention content
The method disclosed in the present is solved due to CQI caused by the main plot change for not performing random access procedure
The problem of report, ascending HARQ-ACK are reported and downlink ACK/NACK is received.
According to the first aspect of the invention, a kind of method changed for main plot in doubly-linked welding system, institute are provided
It states method and includes the following steps performed by user equipment：Receiving step, wherein user equipment reception comes from master base station
About the main plot alteration command from base station, it is described to be used to indicate the user from the main plot alteration command of base station and set
It is standby from it is described be altered to from the first main plot of base station it is described from the second main plot of base station, wherein first main plot and institute
State the timing advance group that the second main plot belongs to identical；Channel quality step is sent, wherein coming from the main base receiving
Stand about the main plot alteration command from base station after, the user equipment according to channel quality instruction configuration to it is described from
Base station sends channel quality instruction index, and the channel quality instruction indexes to go beyond the scope to represent that the user equipment receives
To come from the master base station about the main plot alteration command from base station；Encapsulation step is determined, wherein the use
Family equipment according to receive come from described in from the biography in the Physical Downlink Shared Channel of at least any serving cell of base station
Defeated piece of time slot determines the encapsulation of ACK or NACK in corresponding Physical Uplink Control Channel；And it receives mixed automatic retransfer and refers to
Show step, receive come from the master base station about the main plot alteration command from base station after, if it is described from
First main plot of base station is configured as cross-carrier scheduling after being changed in main plot and the user equipment is come from receiving
In at least any serving cell from base station before the master base station is about the main plot alteration command from base station
Physical Uplink Shared Channel on have sent transmission block, the user equipment continues to come from first master from base station
The physical mixed automatic re-transmission indicating channel of cell is until the first time slot.
It should be noted that the transmission channel quality step, determines encapsulation step and receives mixed automatic retransfer instruction
Step does not need to exist simultaneously.If user equipment does not receive the transmission block sent on PDSCH, then do not need to feeding back ACK/
NACK, also there is no need to determine encapsulation step.It is described to be configured as after the change of main plot across load from the first main plot of base station
Wave scheduling refers to that the first main plot is dispatched after being changed in main plot by other serving cells (can be the second main plot), that is, uses
Family equipment does not need to the descending control signaling on the first main plot of detection, the downlink control transmitted in the others serving cell
The CIF included in signaling indicates whether to dispatch first main plot.
According to one embodiment of present invention, the determining encapsulation step further includes：If receive come from it is described
Master base station about the main plot alteration command from base station before, the user equipment have received come from it is described from base
The transmission block on the Physical Downlink Shared Channel of at least any serving cell stood, the user equipment is in first main plot
Physical Uplink Control Channel predefined time slot in send described in be total to from the physical down of at least any serving cell of base station
Enjoy the ACK or NACK of the transmission block in channel；If receive come from the master base station about the master from base station
After cell alteration command, the user equipment has received the physics for coming from least any serving cell from base station
Transmission block on DSCH Downlink Shared Channel, the user equipment second main plot Physical Uplink Control Channel it is predefined
Sent in time slot the ACK from the transmission block in the Physical Downlink Shared Channel of at least any serving cell of base station or
NACK。
According to one embodiment of present invention, the determining encapsulation step further includes：If receive come from it is described
Master base station about the main plot alteration command from base station before, the user equipment have received come from it is described from base
The transmission block on the Physical Downlink Shared Channel of at least any serving cell stood, the user equipment come from institute receiving
State the small about at least any service from base station is not sent after the main plot alteration command from base station of master base station
The ACK or NACK of transmission block in the Physical Downlink Shared Channel in area；If receive come from the master base station about
After the main plot alteration command from base station, the user equipment have received come from it is described from at least any of base station
Transmission block on the Physical Downlink Shared Channel of serving cell, the user equipment is in the physical uplink control of second main plot
It is sent in the predefined time slot of channel processed described from the biography in the Physical Downlink Shared Channel of at least any serving cell of base station
Defeated piece of ACK or NACK.
According to one embodiment of present invention, first time slot comes from the master receiving for the user equipment
The last transmission sent on channel is shared about the physically row before the main plot alteration command from base station in base station
The time slot of the physical mixed automatic re-transmission indicating channel from the first main plot of base station corresponding to block.
According to one embodiment of present invention, it is further included before the receiving step：Reception comes from described from base station
Transmission block on the Physical Downlink Shared Channel of at least any serving cell；In at least any serving cell from base station
On Physical Uplink Shared Channel transmission block is sent from base station to described.
According to one embodiment of present invention, the reception mixed automatic retransfer instruction step further includes the user equipment
It continues to come from the physical mixed autonomous retransmission instruction letter from the first main plot of base station in predefined time slot
Road is until first time slot.
According to the second aspect of the invention, a kind of method changed for main plot in doubly-linked welding system, institute are provided
It states method and includes the following steps performed by master base station：Reception come from from described in base station from the main plot of base station change please
It asks, it is described to change request from the main plot of base station for the master base station to be asked to indicate user equipment from described from the first of base station
Main plot be altered to it is described from the second main plot of base station, wherein first main plot and second main plot belong to identical
Timing advance group；And send the main plot alteration command from base station, the master from base station to the user equipment
Cell alteration command is used to indicate user equipment and is altered to second master from base station from the first main plot of base station from described
Cell.
According to the third aspect of the present invention, the method changed for main plot in doubly-linked welding system, the side are provided
Method includes the following steps by being performed from base station：Described change from the main plot of base station is sent to master base station to ask, it is described from base
The main plot change stood asks that the master base station is asked to indicate that user equipment is changed from described from the first main plot of base station
To described from the second main plot of base station, wherein first main plot and second main plot belong to identical timing advance
Group；After the change request from the main plot of base station is sent to the master base station, the letter for coming from the user equipment is received
Road quality instruction index, the channel quality instruction index instruction go beyond the scope to represent described in the user equipment from base station
Main plot change；Receive the object come from corresponding to the predefined time slot in the Physical Uplink Control Channel of the user equipment
Manage the ACK or NACK of the transmission block of DSCH Downlink Shared Channel；It is sent out in first main plot from base station to the user equipment
Send physical mixed automatic re-transmission indicating channel with indicate the user equipment receive come from the master base station about institute
State from before the alteration command of the main plot of base station described from the Physical Uplink Shared Channel of any serving cell of base station
The ACK or NACK of the transmission block of transmission.
According to one embodiment of present invention, the method changed for main plot in doubly-linked welding system be additionally included in it is described from
On the Physical Downlink Shared Channel of at least any serving cell of base station transmission block is sent to the user equipment；Reception comes from
The user equipment in the transmission block from the Physical Uplink Shared Channel of at least any serving cell of base station.
According to the fourth aspect of the present invention, a kind of device changed for main plot in doubly-linked welding system, institute are provided
Device is stated to include：First receiving unit is used for user equipment reception and comes from the small about the master from base station of master base station
Area's alteration command, it is described to be used to indicate the user equipment from described from the first master of base station from the main plot alteration command of base station
Cell be altered to it is described from the second main plot of base station, wherein first main plot and second main plot belong to identical
Timing advance group；Transmitter unit, be used for receive come from the master base station about it is described from the main plot of base station become
After more instructing, the user equipment sends channel quality instruction index, institute to described according to channel quality instruction configuration from base station
State channel quality instruction index for go beyond the scope with represent the user equipment have received come from the master base station about
The main plot alteration command from base station；Determination unit, be used for the user equipment according to receive come from described in
From the time slot of the transmission block in the Physical Downlink Shared Channel of at least any serving cell of base station, corresponding physical uplink is determined
The encapsulation of ACK or NACK in control channel；And second receiving unit, it is used to receive the pass that comes from the master base station
After the main plot alteration command from base station, if described be configured from the first main plot of base station after the change of main plot
For it is cross-carrier scheduling and the user equipment receive come from the master base station about described from the main plot of base station
Transmission block is had sent from the Physical Uplink Shared Channel of at least any serving cell of base station described before alteration command, it is described
User equipment continues to come from the physical mixed automatic re-transmission indicating channel from the first main plot of base station until the
One time slot.
According to one embodiment of present invention, the determination unit further includes：If come from the main base receiving
Stand about the main plot alteration command from base station before, the user equipment have received come from it is described from base station
Transmission block on the Physical Downlink Shared Channel of at least any serving cell, the user equipment is in the object of first main plot
It manages and shares letter from the physical down of at least any serving cell of base station described in being sent in the predefined time slot of uplink control channel
The ACK or NACK of transmission block in road；If receive come from the master base station about described from the main plot of base station
After alteration command, the user equipment has received the physical down for coming from least any serving cell from base station
Transmission block on shared channel, the user equipment is in the predefined time slot of the Physical Uplink Control Channel of second main plot
From the ACK or NACK of the transmission block in the Physical Downlink Shared Channel of at least any serving cell of base station described in middle transmission.
According to one embodiment of present invention, the determination unit further includes：If come from the main base receiving
Stand about the main plot alteration command from base station before, the user equipment have received come from it is described from base station
Transmission block on the Physical Downlink Shared Channel of at least any serving cell, the user equipment come from the master receiving
Base station about at least any serving cell from base station is not sent after the main plot alteration command from base station
The ACK or NACK of transmission block in Physical Downlink Shared Channel；If receive come from the master base station about described
After the main plot alteration command of base station, the user equipment, which has received, comes from least any service from base station
Transmission block on the Physical Downlink Shared Channel of cell, physical uplink of the user equipment in second main plot control letter
It is sent in the predefined time slot in road described from the transmission block in the Physical Downlink Shared Channel of at least any serving cell of base station
ACK or NACK.
According to one embodiment of present invention, first time slot comes from the master receiving for the user equipment
The last transmission sent on channel is shared about the physically row before the main plot alteration command from base station in base station
The time slot of the physical mixed automatic re-transmission indicating channel from the first main plot of base station corresponding to block.
According to the fifth aspect of the present invention, a kind of device changed for main plot in doubly-linked welding system, institute are provided
Device is stated to include：Receiving unit, be used for receive come from from described in base station from the main plot of base station change ask, it is described from
The main plot change of base station asks that the master base station is asked to indicate that user equipment becomes from described from the first main plot of base station
From the second main plot of base station described in more arriving, wherein first main plot and second main plot belong to identical timing and carry
Preceding group；And transmitter unit, it is used to send the main plot alteration command from base station to the user equipment, it is described from base
The main plot alteration command stood be used to indicate user equipment from it is described be altered to from the first main plot of base station it is described from base station
Second main plot.
According to the sixth aspect of the invention, a kind of device changed for main plot in doubly-linked welding system, institute are provided
Device is stated to include：First transmitter unit is used to ask to described change from the main plot of base station of master base station transmission, described from base
The main plot change stood asks that the master base station is asked to indicate that user equipment is changed from described from the first main plot of base station
To described from the second main plot of base station, wherein first main plot and second main plot belong to identical timing advance
Group；First receiving unit is used for after the change request from the main plot of base station is sent to the master base station, and reception comes from
Index is indicated in the channel quality of the user equipment, and the channel quality instruction index instruction goes beyond the scope to represent the use
The described of family equipment is changed from the main plot of base station；Second receiving unit is used to receive the object for coming from the user equipment
Manage the ACK or NACK of the transmission block of the Physical Downlink Shared Channel corresponding to the predefined time slot in uplink control channel；Second
Transmitter unit is used in first main plot from base station refer to user equipment transmission physical mixed autonomous retransmission
Show channel with indicate the user equipment receive come from the master base station about the change from the main plot of base station
More instruct before the transmission block sent from the Physical Uplink Shared Channel of any serving cell of base station ACK or
NACK。
Using the solution of the present invention, not only solve since what is caused changed in the main plot for not performing random access procedure
The problem of channel-quality feedback, HARQ feedback are fuzzy, and make can be suitable during main plot is changed from base station and user equipment
The transmission data of profit, contribute to the promotion of spectrum efficiency.
Description of the drawings
It, will be more preferable geographical after description by the specific embodiment below with reference to the present invention given by drawings below
The solution present invention, and other objects of the present invention, details, features and advantages will become apparent.
Attached drawing 1 shows the schematic diagram of information feedback when a main plot for doubly-linked welding system is changed；
Attached drawing 2 shows the signal of ACK or NACK feedbacks in PUCCH when a main plot for doubly-linked welding system is changed
Figure；
Attached drawing 3 show another for doubly-linked welding system main plot change when PUCCH in ACK or NACK feedback show
It is intended to；
Attached drawing 4 shows the signal of ACK or NACK feedbacks in PHICH when a main plot for doubly-linked welding system is changed
Figure；
Attached drawing 5 shows the flow chart of control signaling when a main plot for doubly-linked welding system is changed；
Attached drawing 6 shows 100 schematic diagram of device that a main plot for doubly-linked welding system is changed；
Attached drawing 7 shows 200 schematic diagram of device that a main plot for doubly-linked welding system is changed；And
Attached drawing 8 shows the schematic diagram for the device 300 that a main plot for doubly-linked welding system is changed.
Wherein, the same or similar reference numeral represents the same or similar steps characteristic/device (module).
Specific embodiment
It, will be with reference to the appended attached drawing for forming a present invention part in the specific descriptions of following preferred embodiment.Institute
Attached attached drawing, which has been illustrated by way of example, can realize specific embodiment.Exemplary embodiment is not intended to
Limit all embodiments according to the present invention.It should be noted that although being described in the present invention with particular order in attached drawing has
The step of pass method, but this does not require that or implies and must perform these operations or necessary according to the particular order
Performing the operation shown in whole could realize desired as a result, on the contrary, step described herein, which can change, performs sequence.
Additionally or alternatively, it is convenient to omit multiple steps are merged into step and performed and/or by a step by certain steps
Decompose dimension execution of multiple steps.
In order to help the understanding of the present invention, make an explanation below to some concepts occurred in the present invention：
Master base station：In doubly-linked welding system, base station that S1-MME interface is terminated, the control plane such as RRC of user equipment
Positioned at master base station.
From base station：In doubly-linked welding system, extra resource and not master base station base station is provided for user equipment.
From set of cells：It is small in doubly-linked welding system and from the associated one group of service for user device configuration in base station
Area, this group of serving cell include main plot (pSCell) and optional one or more from cell.
First main plot：It is the clothes for being configured with PUCCH from base station that the user equipment in dual link state is accessed
Business cell.
Second main plot：It is user equipment institute after the user equipment is received about being instructed from the migration of the main plot of base station
The serving cell for being configured with PUCCH from base station of access.Before the main plot alteration command from base station is not received by, the
Two main plots by user equipment access from base station without being configured the serving cell of PUCCH, and first main plot and the
Two main plots belong to identical TAG.
Cross-carrier scheduling：In the present invention, the main cross-carrier scheduling described from base station side.Two are included at least from set of cells
A serving cell, one of them is main plot (pSCell).If being configured with cross-carrier scheduling, main plot can not only dispatch certainly
Oneself, can also dispatch other serving cells.Specifically, CIF (Carrier are included in descending control signaling in main plot
Indicator Field) it is used to indicate whether to dispatch oneself or other serving cells.It main plot cannot be small by other services
Area carries out cross-carrier scheduling.
In an embodiment of the present invention, it is described according to the agreement of LTE FDD scenes, but the also the same of the present invention is suitble to
In LTE TDD systems and other use dual link wireless communication system.Although the present invention is led with the first main plot and second
Illustrate the solution of the present invention for cell, but the present invention is not intended to limit the number from the serving cell in set of cells,
In addition to the first main plot as described in the present invention and the second main plot from set of cells, can also there are one or multiple services
Cell.
As shown in Figure 1, user equipment establishes dual link with master base station and from base station, is set for the user
Have in the SCG of standby configuration at least there are two serving cell, the first main plot is original main plot, and the second main plot is new master
Cell.First main plot and the second main plot belong to identical TAG, do not need to execution random access procedure in this way and can be carried out
It changes main plot.
Fig. 5 shows the flow chart of a control signaling when main plot is changed.
In step s 51, it is sent from base station 200 to master base station 100 (specific from the change request of the main plot of base station 200
Request title is not construed as limiting, and can be SCG modifications request), it is used to indicate user equipment from the change request of the main plot of base station 200
300 are altered to from from the first main plot of base station 200 from the second main plot of base station 200, wherein the first main plot and the second master
Cell belongs to identical TAG.
In step S52, from base station 200 on the Physical Downlink Shared Channel of at least any serving cell to user equipment
300 send transmission block.For example, from base station 200 in subframe 1 respectively on the PDSCH of the first main plot and the second main plot to
User equipment 300 sends transmission block, that is, data.
In step S53, user equipment 300 shares letter in the physical uplink of at least any serving cell from base station 200
On road transmission block is sent to from base station 200.For example, user equipment 300 in subframe 1 respectively in the first main plot and the second main plot
PUSCH on to from base station 200 send transmission block.
In step S54, master base station 100 sends the main plot alteration command from base station 200 to user equipment 300, from base
The 200 main plot alteration command of standing is used to indicate user equipment 300 and is altered to from from the first main plot of base station 200 from base station
200 the second main plot.In this alteration command, without switching the finger of (intra-cell handover) in triggering cell
Show, therefore user equipment 300 does not need to implement random access to carry out the change of main plot.
In addition, can be sent in RRC signaling can also be in any suitable down channel for the main plot alteration command
It is sent to user equipment 300.The main plot alteration command can also include for example cross-carrier scheduling mechanism configuration information and
Other relevant informations necessary to the change of main plot.For example, the second main plot can be configured to can both dispatch itself, also may be used
To dispatch the first main plot；Second main plot can also be configured to both dispatch itself, its that belong to SCG can also be dispatched
Its any serving cell.
User equipment receives the main plot alteration command from base station in such as subframe 4, since subframe 4, the second master
Cell is main plot, and user equipment needs the PUCCH in the second main plot to send CQI, HARQ feedback etc. to from base station.
As shown in Figure 1, being configured according to CQI report, user equipment 300 should report CQI in such as subframe 5 to from base station.
Before subframe 4, user equipment 300 as main plot and is obtained related to the subframe 1 of the first main plot using the first main plot
The CQI of connection (i.e. in subframe 1, the CQI for the first main plot that user equipment obtains).In subframe 4, user equipment 300 is known
Main plot is altered to the second main plot from the first main plot, but the configuration of the CQI report of main plot still remains unchanged, in subframe
When 5, user equipment 300 must report with 1 associated CQI of the subframe of the second main plot, but user equipment 300 does not obtain
Take with 1 associated CQI of the subframe of the second main plot, which results in CQI to report the problem of fuzzy.
In step 55, user equipment 300 receive come from master base station 100 about from the main plot of base station 200
After alteration command, user equipment 300 is configured according to CQI and sends channel quality instruction index to from base station 200 in the second main plot,
Such as CQI==0 (going beyond the scope), with represent user equipment 300 have received come from master base station 100 about from base station
200 main plot alteration command.In this way, it is small to be aware of the master that the user equipment 300 do not perform random access procedure from base station 200
It changes in area.If it should be noted that user equipment 300 in subframe 1 according to original CQI report configuration (namely original CQI
Having been indicated in report configuration needs to report CQI of second main plot in subframe 1) CQI of the second main plot has been obtained,
Then in subframe 5, user equipment 300 indicates index to sending acquired channel quality from base station 200 in the second main plot.
As shown in Figure 2 and step S52 described in, user equipment 300 such as subframe 1 have received respectively the first main plot with
The transmission block sent on the PDSCH of second main plot, if changed without main plot, user equipment 300 should be in the first master
(FDD system is subframe 5 in the predefined time slot of the PUCCH of cell.HARQ sequential relationships belong to the prior art, and the present invention does not open up
Open narration) send ACK or NACK feedbacks to from base station 200.
At step 56, user equipment 300 comes from according to what is received from least any serving cell of base station 200
The time slot of Physical Downlink Shared Channel determines the encapsulation of ACK or NACK in corresponding Physical Uplink Control Channel：
If receive come from master base station 100 about before the main plot alteration command of base station 200, Yong Hushe
Standby 300 have received the transmission block come from from the Physical Downlink Shared Channel of at least any serving cell of base station 200, use
Family equipment 300 is sent in the predefined time slot of the Physical Uplink Control Channel of the first main plot from at least any of base station 200
The ACK or NACK of transmission block in the Physical Downlink Shared Channel of serving cell；Or
User equipment 300 receive come from master base station 100 about after the main plot alteration command of base station 200
In the Physical Downlink Shared Channel for not sending at least any serving cell from base station 200 after subframe 1 (including subframe 1)
The ACK or NACK of transmission block；
If receive come from master base station 100 about after the main plot alteration command of base station 200, Yong Hushe
Standby 300 have received the transmission block come from from the Physical Downlink Shared Channel of at least any serving cell of base station 200, use
Family equipment 300 is sent in the predefined time slot of the Physical Uplink Control Channel of the second main plot from at least any of base station 200
The ACK or NACK of transmission block in the Physical Downlink Shared Channel of serving cell.
As shown in Fig. 2, user equipment 300 is received on PDSCH simultaneously in the subframe 1 of the first main plot and the second main plot
Transmission block, if without main plot change, user equipment 300 should be in the predefined time slot of the PUCCH of the first main plot
In, such as subframe 5, to from the transmission of base station 200 ACK/NACK feedbacks, ACK/NACK feedbacks are based on such as TB of table 2 and service small
The mapping relations in area.
The mapping relations of table 2TB and serving cell on PUCCH format 1b HARQ-ACK
When subframe 4, user equipment 300 has received for example, by RRC information comes from being used for for master base station 100
Indicate the instruction of main plot change, user equipment should in the predefined time slot of the PUCCH of the second main plot, such as subframe 5 to
ACK/N A C K feedbacks are sent from base station 200.But due to the change of main plot when subframe 4, TB and master in table 1
Mapping relations between cell are changed, and user equipment 300 needs to Reseal based on mapping relations new in such as table 3
ACK or NACK feedbacks, and Resealing needs the regular hour, this may cause should be in the PUCCH subframes 5 of the second main plot
The ACK or NACK of transmission cannot be sent in time.Therefore, as shown in Fig. 2, the present invention proposes the PDSCH received before subframe 4
In transmission block corresponding to ACK or NACK feedback send and keep on the PUCCH of the first main plot with the first main plot
For the mapping relations in the TB of main plot and the mapping relations of serving cell namely table 2.
The mapping relations of table 3TB and serving cell on PUCCH format 1b HARQ-ACK
Optionally, as shown in figure 3, user equipment 300 can not also be sent in before subframe 4 and after subframe 1 (including
Subframe 1) ACK or NACK feedbacks corresponding to transmission block in the PDSCH that receives.If user equipment is not sent in subframe 4
The ACK or NACK feedbacks corresponding to transmission block in the PDSCH received before, can be according to system configuration, example from base station 200
Such as, affirmation mode (AM：Acknowledged Mode) or Unacknowledged Mode (UM：Unacknowledged Mode) or it is maximum
HARQ number of retransmissions etc. is retransmitted to select or is not retransmitted.
It is sent from the PDSCH of any serving cell of base station 200 for what is received after subframe 4 (including subframe 4)
Transmission block, user equipment 300 sent in the predefined time slot of the PUCCH of the second main plot and the PDSCH in transmission block
Corresponding ACK or NACK.
In step 57, user equipment 300 receive come from master base station 100 about from the main plot of base station 200
After alteration command, if being configured with cross-carrier scheduling mechanism and user from the first main plot of base station 200 and the second main plot
Equipment 300 receive come from master base station 100 about before the main plot alteration command of base station 200 from base station 200
Have sent transmission block on the Physical Uplink Shared Channel of at least any serving cell, the user equipment continue to come from from
The physical mixed automatic re-transmission indicating channel of first main plot of base station 200 is set until the first time slot, first time slot for user
Standby 300 receive come from master base station 100 about shared from the physically row before the main plot alteration command of base station 200
The physical mixed autonomous retransmission from the first main plot of base station 200 corresponding to the last transmission block sent on channel indicates letter
The time slot in road.
If being configured with cross-carrier scheduling mechanism from base station 200 for the first main plot, the first main plot can both dispatch certainly
Oneself can also dispatch the second main plot.As described in step S53, user equipment 300 is scheduled simultaneously in subframe 1 in the first master
Cell and the PUSCH transmission data of the second main plot.If changed without main plot, user equipment 300 should according to configuration
Subframe 5 in the first main plot receives corresponding PHICH.But when subframe 4, user equipment 300 disappears for example, by RRC
Breath has received the instruction for being used to indicate main plot change for coming from master base station 100, and user equipment 300 is thought in subframe 4,
Second main plot is as main plot.But do not know that main plot is altered when subframe 4 from base station 200, from base station 200
Still the ACK/NACK of the transmission block in PUSCH when the first main plot sends PHICH to feed back in subframe 1.If user
Equipment 300 does not receive PHICH in subframe 5 in the first main plot, and user equipment 300 does not just know the PUSCH in subframe 1
In TB response situation.If in RRC information, the second main plot is configured as that oneself can be dispatched or dispatches
One main plot, after subframe 4,300 meetings of user equipment detect PHICH in the second main plot.Therefore, as shown in figure 4, i.e.
User equipment 300 is made to have received main plot alteration command in subframe 4, user equipment 300 is continued in the first main plot
Receive subframe 1 PUSCH in TB corresponding to PHICH until the PHICH time slots corresponding to the TB in the PUSCH of subframe 3 (i.e.
Subframe 7).If user equipment 300 does not send transmission block in subframe 3 on PUSCH, user equipment 300 does not need to
Subframe 7 detects the PHICH in the first main plot.
The application scenarios that user equipment 300 continues to receive PHICH in the first main plot include but not limited to：1st, in master
Before cell change, itself and cross-carrier scheduling the second main plot or other serving cells are dispatched in the first main plot.In master
After cell change, itself is also dispatched in the second main plot the first main plot of cross-carrier scheduling.Before signaling is changed in main plot
(for FDD, k in the k subframe of (i.e. user equipment 300 is received corresponding to main plot change signaling before subframe)<=3；It is right
In TDD, k can be more than 3) user equipment 300 in the first main plot and/or other services in the cross-carrier scheduling in the first main plot
Transmission block is had sent on the PUSCH of cell.The transmission block that user equipment 300 is sent when earlier (i.e. except k subframe), user
Equipment 300 has obtained the feedback of ACK/NACK when receiving main plot change signaling.
2nd, before main plot is changed, itself is only dispatched in the first main plot.Main plot change after, the second main plot across
Carrier wave dispatches the first main plot, also dispatches itself.(for FDD, k in k subframe before signaling is changed in main plot<=3；
For TDD, k can have sent transmission block more than 3) user equipment 300 on the PUSCH of the first main plot.
Fig. 6 shows the schematic diagram of the device 100 changed for main plot in doubly-linked welding system.Device 100 for example can be with
It is or can realizes above in association with the user equipment 300 in the described embodiments of Fig. 5.
As shown in fig. 6, device 100 includes the first receiving unit 110, it is used for the reception of user equipment 300 and comes from main base
Stand 100 about the main plot alteration command from base station 200, be used to indicate user from the main plot alteration command of base station 200 and set
Standby 300 are altered to from from the first main plot of base station 200 from the second main plot of base station 200, wherein the first main plot and second
Main plot belongs to identical timing advance group；Transmitter unit 120, be used for receive come from master base station 100 about from
After the main plot alteration command of base station 200, user equipment 300 sends channel according to channel quality instruction configuration to from base station 200
Quality instruction index, channel quality instruction index come from main base to go beyond the scope to represent that user equipment 300 has received
Stand 100 about the main plot alteration command from base station 200；Determination unit 130 is used for user equipment 300 according to receiving
Come from from the transmission block time slot in the Physical Downlink Shared Channel of at least any serving cell of base station 200, determine corresponding
Physical Uplink Control Channel in ACK or NACK encapsulation；And second receiving unit 140, come from master base station receiving
100 about after the main plot alteration command of base station 200, if after being changed from the first main plot of base station 200 in main plot
It is configured as cross-carrier scheduling and user equipment 300 comes from the small about the master from base station 200 of master base station 100 receiving
Transmission block is had sent on the Physical Uplink Shared Channel from least any serving cell of base station 200 before area's alteration command, is used
Family equipment 300 continues to come from the physical mixed automatic re-transmission indicating channel from the first main plot of base station 200 until
One time slot.
In one implementation, the determination unit 130 of device 100 further includes：If come from master base station receiving
100 about before the main plot alteration command of base station 200, user equipment 300 have received come from from base station 200 to
Transmission block on the Physical Downlink Shared Channel of few any serving cell, user equipment 300 is in the physics of first main plot
It is sent from the Physical Downlink Shared Channel of at least any serving cell of base station 200 in the predefined time slot of uplink control channel
Transmission block ACK or NACK；If come from referring to about the change from the main plot of base station 200 for master base station 100 receiving
After order, user equipment 300 has received the Physical Downlink Shared Channel come from from least any serving cell of base station 200
On transmission block, user equipment 300 sent in the predefined time slot of the Physical Uplink Control Channel of second main plot from
The ACK or NACK of transmission block in the Physical Downlink Shared Channel of at least any serving cell of base station 200.
In one implementation, if the determination unit 130 of device 100, which is further included, comes from master base station receiving
100 about before the main plot alteration command of base station 200, user equipment 300 have received come from from base station 200 to
Transmission block on the Physical Downlink Shared Channel of few any serving cell, user equipment 300 come from master base station 100 receiving
About not sent after the main plot alteration command of base station 200 under the physics of at least any serving cell of base station 200
The ACK or NACK of transmission block in the shared channel of row；If receive come from master base station 100 about from base station 200
After the alteration command of main plot, user equipment 300 has received the physics come from from least any serving cell of base station 200
Transmission block on DSCH Downlink Shared Channel, user equipment 300 is in the predefined time slot of the Physical Uplink Control Channel of the second main plot
The middle ACK or NACK sent from the transmission block in the Physical Downlink Shared Channel of at least any serving cell of base station 200.
In one implementation, the first time slot of the second receiving unit 140 of device 100 is connecing for the user equipment
It receives and comes from being shared on channel about the physically row before the main plot alteration command from base station for the master base station
The physical mixed automatic re-transmission indicating channel from the first main plot of base station corresponding to last transmission block sent
Time slot.
Fig. 7 shows the schematic diagram of the device 200 changed for main plot in doubly-linked welding system.Device 200 for example can be with
It is or can realizes above in association with the master base station 100 in the described embodiments of Fig. 5.
As shown in fig. 7, device 200 includes receiving unit 210, it is used to receive and comes from from base station 200 from base station 200
Main plot change request, change request from the main plot of base station 200 for master base station 100 to be asked to indicate user equipment from from base
Stand 200 the first main plot is altered to from the second main plot of base station 200, wherein the first main plot and the second main plot belong to phase
Same timing advance group；And
Transmitter unit 220 is used to send main plot alteration command from base station 200 to user equipment 300, from base station
200 main plot alteration command is used to indicate user equipment 300 and is altered to from from the first main plot of base station 200 from base station 200
The second main plot.
Fig. 8 shows the schematic diagram of the device 300 changed for main plot in doubly-linked welding system.Device 300 for example can be with
Be or can realize above in association in the described embodiments of Fig. 5 from base station 200.
As shown in figure 8, device 300 includes the first transmitter unit 310, it is used to send from base station 200 to master base station 100
Main plot change request, from the main plot of base station 200 change request for ask master base station 100 indicate user equipment 300 from from
First main plot of base station 200 is altered to from the second main plot of base station 200, wherein the first main plot and the second main plot belong to
Identical timing advance group；
First receiving unit 320 is used to send after the change request of the main plot of base station 200 to master base station 100, connect
The channel quality instruction index for coming from user equipment 300 is received, channel quality instruction index instruction goes beyond the scope to represent to use
Family equipment 300 is changed from the main plot of base station 200；
Second receiving unit 330, be used to receive come from it is predetermined in the Physical Uplink Control Channel of user equipment 300
The ACK or NACK of the transmission block in Physical Downlink Shared Channel corresponding to adopted time slot；
Second transmitter unit 340 is used in the first main plot from base station 200 send physics to user equipment 300
Hybrid automatic retransmission indication channel with indicate user equipment 300 receive come from the master base station about from base station 200
Main plot alteration command before transmission block in the Physical Uplink Shared Channel from any serving cell of base station 200
ACK or NACK.
Herein, method disclosed herein is described with reference to attached drawing.It is it should be appreciated, however, that attached shown in figure
And sequence of steps described in this description is only schematical, without departing from the scope of the claims, this
A little method and steps and/or action can perform and be not limited to institute in shown in attached drawing and specification in a different order
The particular order of description.
The above description of the disclosure is used to that any those of ordinary skill of this field to be enable to realize or use the present invention.It is right
For those of ordinary skill in the art, the various modifications of the disclosure will be apparent from, and generality defined herein
Principle can also be applied to other deformations in the case of without deviating from the spirit and scope of the disclosed invention.Therefore, the present invention simultaneously
Example as described herein and design are not limited to, but it is consistent with the widest scope of principle disclosed herein and novel features.
Claims (11)
1. a kind of method changed for main plot in doubly-linked welding system, the following step that the method includes being performed by user equipment
Suddenly：
Receiving step, wherein the user equipment reception come from master base station about the main plot alteration command from base station, institute
It states and is used to indicate the user equipment from the main plot alteration command of base station and is altered to institute from the first main plot of base station from described
It states from the second main plot of base station, wherein first main plot and second main plot belong to identical timing advance group；
Channel quality step is sent, wherein coming from being changed about described from the main plot of base station for the master base station receiving
After instruction, the user equipment sends channel quality instruction index to described according to channel quality instruction configuration from base station, described
Channel quality instruction index to go beyond the scope with represent the user equipment have received come from the master base station about institute
State the main plot alteration command from base station；
Determine encapsulation step, wherein the user equipment according to receive come from described in from base station it is at least any service it is small
Transmission block time slot in the Physical Downlink Shared Channel in area determines the envelope of ACK or NACK in corresponding Physical Uplink Control Channel
Dress；And
Receive mixed automatic retransfer instruction step, receive come from the master base station about described from the main plot of base station
After alteration command, if it is described from the first main plot of base station main plot change after be configured as it is cross-carrier scheduling and it is described
User equipment receive come from the master base station about the main plot alteration command from base station before described from base
Transmission block is had sent on the Physical Uplink Shared Channel of at least any serving cell stood, the user equipment continues to come from
In the physical mixed automatic re-transmission indicating channel from the first main plot of base station until the first time slot；
Wherein described first time slot for the user equipment receive come from the master base station about described from base station
Described corresponding to the last transmission block sent on the shared channel of physically row before the alteration command of main plot is from base station
The time slot of the physical mixed automatic re-transmission indicating channel of first main plot.
2. the method as described in claim 1, which is characterized in that the determining encapsulation step further includes：
If receive come from the master base station about the main plot alteration command from base station before, the user
Equipment have received come from it is described from the transmission block on the Physical Downlink Shared Channel of at least any serving cell of base station, institute
State user equipment sent in the predefined time slot of the Physical Uplink Control Channel of first main plot it is described from base station to
The ACK or NACK of transmission block in the Physical Downlink Shared Channel of few any serving cell；
If receive come from the master base station about the main plot alteration command from base station after, the user
Equipment have received come from it is described from the transmission block on the Physical Downlink Shared Channel of at least any serving cell of base station, institute
State user equipment sent in the predefined time slot of the Physical Uplink Control Channel of second main plot it is described from base station to
The ACK or NACK of transmission block in the Physical Downlink Shared Channel of few any serving cell.
3. the method as described in claim 1, which is characterized in that the determining encapsulation step further includes：
If receive come from the master base station about the main plot alteration command from base station before, the user
Equipment have received come from it is described from the transmission block on the Physical Downlink Shared Channel of at least any serving cell of base station, institute
State user equipment receive come from the master base station about the main plot alteration command from base station after do not send
The ACK or NACK of the transmission block from the Physical Downlink Shared Channel of at least any serving cell of base station；
If receive come from the master base station about the main plot alteration command from base station after, the user
Equipment have received come from it is described from the transmission block on the Physical Downlink Shared Channel of at least any serving cell of base station, institute
State user equipment sent in the predefined time slot of the Physical Uplink Control Channel of second main plot it is described from base station to
The ACK or NACK of transmission block in the Physical Downlink Shared Channel of few any serving cell.
4. the method as described in claim 1, which is characterized in that further included before the receiving step：
Reception comes from described from the transmission block on the Physical Downlink Shared Channel of at least any serving cell of base station；And/or
Described transmission block is sent from base station from the Physical Uplink Shared Channel of at least any serving cell of base station to described.
5. the method as described in claim 1, which is characterized in that the reception mixed automatic retransfer instruction step further includes
The user equipment continues to come from the physics from the first main plot of base station in predefined time slot and mixes
Automatic re-transmission indicating channel is closed until first time slot.
6. a kind of method changed for main plot in doubly-linked welding system, the method includes the following steps by being performed from base station
Suddenly：
Described change from the main plot of base station is sent to master base station to ask, it is described to change request from the main plot of base station for asking
The master base station indicate user equipment from it is described be altered to from the first main plot of base station it is described from the second main plot of base station,
Described in the first main plot and second main plot belong to identical timing advance group；
After the change request from the main plot of base station is sent to the master base station, the letter for coming from the user equipment is received
Road quality instruction index, the channel quality instruction index instruction go beyond the scope to represent described in the user equipment from base station
Main plot change；
The physical down come from corresponding to the predefined time slot in the Physical Uplink Control Channel of the user equipment is received to be total to
Enjoy the ACK or NACK of the transmission block in channel；
Physical mixed automatic re-transmission indicating channel is sent to refer to the user equipment in first main plot from base station
Show the user equipment receive come from the master base station about described before the alteration command of the main plot of base station
In the ACK or NACK of the transmission block from the Physical Uplink Shared Channel of any serving cell of base station.
7. method as claimed in claim 6, which is characterized in that further include
It is transmitted in described sent from the Physical Downlink Shared Channel of at least any serving cell of base station to the user equipment
Block；
Receive the Physical Uplink Shared Channel come from the user equipment at least any serving cell from base station
The transmission block of upper transmission.
8. a kind of device changed for main plot in doubly-linked welding system, described device include：
First receiving unit, be used for user equipment reception come from master base station about the main plot alteration command from base station,
It is described to be used to indicate the user equipment from the main plot alteration command of base station and be altered to from described from the first main plot of base station
It is described from the second main plot of base station, wherein first main plot and second main plot belong to identical timing advance
Group；
Transmitter unit, be used for receive come from the master base station about the main plot alteration command from base station
Afterwards, the user equipment sends channel quality instruction index, the channel to described according to channel quality instruction configuration from base station
Quality instruction index for go beyond the scope with represent the user equipment have received come from the master base station about it is described from
The main plot alteration command of base station；
Determination unit, be used for the user equipment according to receive come from described in from least any serving cell of base station
Physical Downlink Shared Channel in transmission block time slot, determine the envelope of ACK or NACK in corresponding Physical Uplink Control Channel
Dress；And
Second receiving unit, be used for receive come from the master base station about it is described from the main plot of base station change refer to
After order, if it is described from the first main plot of base station main plot change after be configured as it is cross-carrier scheduling and the user set
It is standby receive come from the master base station about the main plot alteration command from base station before it is described from base station to
Transmission block is had sent on the Physical Uplink Shared Channel of few any serving cell, the user equipment continues to come from described
From the physical mixed automatic re-transmission indicating channel of the first main plot of base station until the first time slot；
Wherein described first time slot for the user equipment receive come from the master base station about described from base station
Described corresponding to the last transmission block sent on the shared channel of physically row before the alteration command of main plot is from base station
The time slot of the physical mixed automatic re-transmission indicating channel of first main plot.
9. device as claimed in claim 8, which is characterized in that the determination unit further includes：
If receive come from the master base station about the main plot alteration command from base station before, the user
Equipment have received come from it is described from the transmission block on the Physical Downlink Shared Channel of at least any serving cell of base station, institute
State user equipment sent in the predefined time slot of the Physical Uplink Control Channel of first main plot it is described from base station to
The ACK or NACK of transmission block in the Physical Downlink Shared Channel of few any serving cell；
If receive come from the master base station about the main plot alteration command from base station after, the user
Equipment have received come from it is described from the transmission block on the Physical Downlink Shared Channel of at least any serving cell of base station, institute
State user equipment sent in the predefined time slot of the Physical Uplink Control Channel of second main plot it is described from base station to
The ACK or NACK of transmission block in the Physical Downlink Shared Channel of few any serving cell.
10. device as claimed in claim 8, which is characterized in that the determination unit further includes：
If receive come from the master base station about the main plot alteration command from base station before, the user
Equipment have received come from it is described from the transmission block on the Physical Downlink Shared Channel of at least any serving cell of base station, institute
State user equipment receive come from the master base station about the main plot alteration command from base station after do not send
The ACK or NACK of the transmission block from the Physical Downlink Shared Channel of at least any serving cell of base station；
If receive come from the master base station about the main plot alteration command from base station after, the user
Equipment have received come from it is described from the transmission block on the Physical Downlink Shared Channel of at least any serving cell of base station, institute
State user equipment sent in the predefined time slot of the Physical Uplink Control Channel of second main plot it is described from base station to
The ACK or NACK of transmission block in the Physical Downlink Shared Channel of few any serving cell.
11. a kind of device changed for main plot in doubly-linked welding system, described device include：
First transmitter unit is used to send to change from the main plot of base station to master base station to ask, described from the main plot of base station
Change request for ask the master base station indicate user equipment from it is described be altered to from the first main plot of base station it is described from base
The second main plot stood, wherein first main plot and second main plot belong to identical timing advance group；
First receiving unit is used for after the change request from the main plot of base station is sent to the master base station, receives and
Index is indicated from the channel quality in the user equipment, and channel quality instruction index instruction goes beyond the scope with described in representing
The described of user equipment is changed from the main plot of base station；
Second receiving unit is used to receive the predefined time slot come from the Physical Uplink Control Channel of the user equipment
The ACK or NACK of the transmission block of corresponding Physical Downlink Shared Channel；
Second transmitter unit is used in first main plot from base station send physical mixed certainly to the user equipment
Dynamic retransmission indicating chanel with indicate the user equipment receive come from the master base station about the master from base station
Before the alteration command of cell in the transmission block sent from the Physical Uplink Shared Channel of any serving cell of base station
ACK or NACK.
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| CN201410192910.4A CN105099605B (en) | 2014-05-08 | 2014-05-08 | The method and device changed for main plot in doubly-linked welding system |
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| JP2022536814A (en) | 2019-05-09 | 2022-08-19 | オッポ広東移動通信有限公司 | Resource configuration method, apparatus, computer device and storage medium |
| CN110519777A (en) * | 2019-08-08 | 2019-11-29 | 武汉虹信通信技术有限责任公司 | Main serving cell variation, host node and auxiliary node under a kind of dual link |
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| CN101772928A (en) * | 2007-08-03 | 2010-07-07 | 交互数字专利控股公司 | The system level information that is used for discontinuous reception, sub-district gravity treatment and RACH |
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|---|---|---|---|---|
| CN101772928A (en) * | 2007-08-03 | 2010-07-07 | 交互数字专利控股公司 | The system level information that is used for discontinuous reception, sub-district gravity treatment and RACH |
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| MeNB handover procedure;NSN, Nokia Corporation;《3GPP TSG-RAN WG2 Meeting #85bis R2-141432》;20140404;第3部分：Text Proposal * |
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