CN104883740A - Base station and user terminal multi-cell implement method and apparatus - Google Patents

Base station and user terminal multi-cell implement method and apparatus Download PDF

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Publication number
CN104883740A
CN104883740A CN201410073791.0A CN201410073791A CN104883740A CN 104883740 A CN104883740 A CN 104883740A CN 201410073791 A CN201410073791 A CN 201410073791A CN 104883740 A CN104883740 A CN 104883740A
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China
Prior art keywords
base station
main control
subframe subset
master control
control base
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CN201410073791.0A
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Chinese (zh)
Inventor
陈哲
鲁智
池连刚
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Potevio Information Technology Co Ltd
Putian Information Technology Co Ltd
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Putian Information Technology Co Ltd
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Priority to CN201410073791.0A priority Critical patent/CN104883740A/en
Publication of CN104883740A publication Critical patent/CN104883740A/en
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Abstract

The invention provides a base station and user terminal multi-cell implement method and apparatus, comprising: determining a non master control base station and a master control base station; dividing all subframes into at least one master control subframe subset which corresponds with the physical cell ID (PCI) of the master control base station; and allowing the master control base station to perform uplink and downlink signal channel transmission with each subscriber terminal on the master control subframe subset according to the PCI of the master control base station. According to the invention, through division of the master control base station and the non master control base station, time delay sensitive operations such as voice can be transmitted through the master control base station, and other operations are transmitted through the non master control base station, thereby avoiding the problems of reduced user equipment (UE) data transfer rate and deteriorated communication quality of time delay sensitive operations caused by frequent switching among cells under the condition of co-frequency cell dense disposition, guaranteeing continuous transmission of the time delay sensitive operations, and reducing influence to system throughput and user experience.

Description

The implementation method of base station and user terminal of multi-cell and device
Technical field
The present invention relates to communication technical field, particularly relate to implementation method and the device of a kind of base station and user terminal of multi-cell.
Background technology
At current time division duplex Long Term Evolution (TDD-LTE, TimeDivision DuplexingLong Term Evolution) or Frequency Division Duplexing (FDD) Long Term Evolution (FDD-LTE, Frequency Division Duplexing Long Term Evolution) in system, each community has a Physical Cell Identifier (PCI, physical cell ID).The physical signalling that each community sends and physical channel, such as primary/secondary synchronizing signal (PSS/SSS, primary synchronization signal/secondary synchronization signal), the symbol of cell special reference (CRS, cell-specific reference signal) and frequency domain position, data channel scramble sequence etc. all generate based on the PCI of oneself.User terminal (UE, User Equipment) determines the PCI of community by detecting primary/secondary synchronizing signal, and by realizing based on physical signalling and the physical channel process of this PCI and the communicating of cell base station.Wherein different districts especially generally uses different PCI in neighbor cell, make UE can find each community and report the received signal quality of each community, network side then judges the need of carrying out cell merge UE according to the received signal quality reported result of multiple community, assists UE to complete cell merge as needs then send dependent instruction.
The cell merge of current LTE adopts hard handover approach, that is: first disconnect with source base station, then be connected with target BS.When direct-cut operation occurs, UE, by stopping the transmission of data service, this means that cell merge will cause the reduction of UE data transmission efficiency.This efficiency of transmission be lost in the scene of macro-cell deployment under and not obvious, but will clearly under with the border, field of frequently small-cell dense deployment because cell merge will frequently occur under this scene.
Summary of the invention
(1) technical problem that will solve
The invention provides implementation method and the device of a kind of base station and user terminal of multi-cell, to solve the technical problem of the UE data transmission efficiency reduction caused during frequent switching between small-cell in prior art.
(2) technical scheme
For solving the problems of the technologies described above, the embodiment of the present invention provides the implementation method of a kind of base station multiple cell, comprising:
Determine non-main control base station and a main control base station;
All subframes are at least marked off a master control subframe subset, the Physical Cell Identifier of the corresponding described main control base station of described master control subframe subset;
Make described main control base station according to the Physical Cell Identifier of main control base station, in described master control subframe subset, carry out uplink and downlink signals transmission with each user terminal.
Further,
Describedly determine that non-main control base station and a main control base station comprise: one of them of multiple base station is defined as main control base station, and all the other are non-main control base station; Or all base stations are defined as non-main control base station, and introducing a virtual base station is main control base station;
Described main control base station is used for propagation delay time sensitive traffic, and described non-main control base station is for transmitting non-delay sensitive business.
Further,
Describedly all subframes are at least marked off a master control subframe subset and also comprise: sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset;
Described method also comprises: make non-main control base station according to the Physical Cell Identifier of non-main control base station, carries out uplink and downlink signals transmission with described user terminal in corresponding non-master control subframe subset.
Further, describedly all subframes are at least marked off a master control subframe subset and comprise:
Independently subframe subset division is carried out to sub-frame of uplink and descending sub frame, obtains master control subframe subset sums non-master control subframe subset;
Or, subframe subset division is carried out to descending sub frame, by HARQ timing corresponding relation, recessive subframe subset division is carried out to sub-frame of uplink, obtain master control subframe subset sums non-master control subframe subset.
Further, described all subframes are at least marked off a master control subframe subset after, and make described main control base station according to the Physical Cell Identifier of main control base station described, before carrying out uplink and downlink signals transmission with each user terminal in described master control subframe subset, also comprise:
Utilize dominant Signalling exchange to coordinate the division of subframe subset between base station, and by dominant signaled user terminal sub-frame division result.
Further, described dominant signaling comprises:
Bitmap indicates; Or, cycle and skew instruction.
On the other hand, the present invention also provides a kind of implementation method of user terminal of multi-cell, comprising:
Receive the subframe subset division result of base station, subframe is at least marked off a master control subframe subset, the Physical Cell Identifier of the corresponding main control base station of described master control subframe subset;
Described master control subframe subset carries out uplink and downlink signals transmission with main control base station.
Further, described method also comprises:
Sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset;
Described non-master control subframe subset carries out uplink and downlink signals transmission with corresponding non-main control base station.
Further, the subframe subset division result of described reception base station comprises:
Receive the dominant signaling of base station, obtain subframe subset division result.
Further, described dominant signaling comprises:
Bitmap indicates; Or, cycle and skew instruction.
Again on the one hand, the present invention also provides the implement device of a kind of base station multiple cell, comprising:
Main control base station determining unit, is positioned at all inside of base station, for carrying out base station information interaction, determines non-main control base station and a main control base station;
Subset division unit, for all subframes at least being marked off a master control subframe subset, the Physical Cell Identifier of the corresponding described main control base station of described master control subframe subset;
Be positioned at the master control transmission unit of described main control base station, be connected with described subset division unit with described main control base station determining unit respectively, for the Physical Cell Identifier according to main control base station, in described master control subframe subset, carry out uplink and downlink signals transmission with each user terminal.
Further,
Described main control base station determining unit is used for: one of them of multiple base station is defined as main control base station, and all the other are non-main control base station; Or all base stations are defined as non-main control base station, and introducing a virtual base station is main control base station;
Described main control base station is used for propagation delay time sensitive traffic, and described non-main control base station is for transmitting non-delay sensitive business.
Further,
Described subset division unit also for: sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset;
Described device also comprises: non-master control transmission unit, be positioned at described non-main control base station, be connected with described subset division unit with described main control base station determining unit respectively, for the Physical Cell Identifier according to non-main control base station, in corresponding non-master control subframe subset, carry out uplink and downlink signals transmission with described user terminal.
Further, described subset division unit is used for:
Independently subframe subset division is carried out to sub-frame of uplink and descending sub frame, obtains master control subframe subset sums non-master control subframe subset;
Or, subframe subset division is carried out to descending sub frame, by HARQ timing corresponding relation, recessive subframe subset division is carried out to sub-frame of uplink, obtain master control subframe subset sums non-master control subframe subset.
Further, described master control transmission unit and non-master control transmission unit also for:
Utilize dominant Signalling exchange to coordinate the division of subframe subset between base station, by dominant signaled user terminal sub-frame division result.
Further, described dominant signaling comprises:
Bitmap indicates; Or, cycle and skew instruction.
On the other hand, the present invention also provides a kind of implement device of user terminal of multi-cell, comprising:
Division unit, for receiving the subframe subset division result of base station, at least marks off a master control subframe subset by subframe, the Physical Cell Identifier of the corresponding main control base station of described master control subframe subset;
Transmission unit, for carrying out uplink and downlink signals transmission with main control base station in described master control subframe subset.
Further,
Described division unit also for: sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset;
Described transmission unit also for: in described non-master control subframe subset, carry out uplink and downlink signals transmission with corresponding non-main control base station.
Further, described division unit also for:
Receive the dominant signaling of base station, obtain subframe subset division result.
Further, described dominant signaling comprises:
Bitmap indicates; Or, cycle and skew instruction.
(3) beneficial effect
Visible, in the implementation method and device of the base station that the embodiment of the present invention provides and user terminal of multi-cell, can by the division of main control base station and non-main control base station, the subframe subset of corresponding main control base station in all user terminal subframes is made all to carry out uplink and downlink signals transmission with main control base station, wherein, the delay sensitive business such as voice can be transmitted by main control base station, all the other business are by non-master control base-station transmission, thus avoid and cause UE data transmission rate to reduce with frequent switching between small-cell under frequently small-cell dense deployment scene, the technical problem of the communication quality decline of delay sensitive business, ensure that the continuous transmission of delay sensitive business, reduce the impact on throughput of system and Consumer's Experience.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the implementation method basic procedure schematic diagram of embodiment of the present invention base station multiple cell;
Fig. 2 is the implementation method basic procedure schematic diagram of embodiment of the present invention user terminal of multi-cell;
Fig. 3 is the implementation method schematic flow sheet of the embodiment of the present invention 1 base station multiple cell;
Fig. 4 is the embodiment of the present invention 1 base station schematic diagram;
Fig. 5 is the embodiment of the present invention 1 to 3 subframe subset division schematic diagram;
Fig. 6 is the implementation method schematic flow sheet of the embodiment of the present invention 2 base station multiple cell;
Fig. 7 is the embodiment of the present invention 2 base station schematic diagram;
Fig. 8 is the implementation method schematic flow sheet of the embodiment of the present invention 2 user terminal of multi-cell;
Fig. 9 is the implement device basic structure schematic diagram of embodiment of the present invention base station multiple cell;
Figure 10 is the implement device preferred structure schematic diagram of embodiment of the present invention base station multiple cell;
Figure 11 is the implement device basic structure schematic diagram of embodiment of the present invention user terminal of multi-cell.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the present invention provides the implementation method of a kind of base station multiple cell, and see Fig. 1, the method comprises:
Step 101: determine non-main control base station and a main control base station.
Step 102: all subframes are at least marked off a master control subframe subset, the Physical Cell Identifier of the corresponding described main control base station of described master control subframe subset.
Step 103: make described main control base station according to the Physical Cell Identifier of main control base station, carries out uplink and downlink signals transmission with each user terminal in described master control subframe subset.
The embodiment of the present invention also provides a kind of implementation method of user terminal of multi-cell, see Fig. 2, comprising:
Step 201: the subframe subset division result receiving base station, at least marks off a master control subframe subset by subframe, the Physical Cell Identifier of the corresponding main control base station of described master control subframe subset.
Step 202: carry out uplink and downlink signals transmission with main control base station in described master control subframe subset.
Visible, in the implementation method of the base station that the embodiment of the present invention provides and user terminal of multi-cell, can by the division of main control base station, the subframe subset of corresponding main control base station in all user terminal subframes is made all to carry out uplink and downlink signals transmission with main control base station, thus frequently switch the technical problem causing UE data transmission rate to reduce between small-cell under avoiding same small-cell dense deployment scene frequently, reduce the impact on throughput of system and Consumer's Experience.
Preferably, in the implementation method of the base station multiple cell of the embodiment of the present invention, determine that non-main control base station and a main control base station can comprise: one of them of multiple base station is defined as main control base station, and all the other are non-main control base station; Or all base stations are defined as non-main control base station, and introducing a virtual base station is main control base station.Described main control base station is used for the delay sensitive business such as transferring voice, and described non-main control base station is for transmitting non-delay sensitive business.
Preferably, all subframes at least being marked off a master control subframe subset can also comprise: sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset; Correspondingly, method can also comprise: make non-main control base station according to the Physical Cell Identifier of non-main control base station, carries out uplink and downlink signals transmission with described user terminal in corresponding non-master control subframe subset.
Preferably, all subframes at least being marked off a master control subframe subset can comprise: carry out independently subframe subset division to sub-frame of uplink and descending sub frame, obtains master control subframe subset sums non-master control subframe subset; Or, subframe subset division is carried out to descending sub frame, by certain corresponding relation, as HARQ timing corresponding relation carries out recessive subframe subset division to sub-frame of uplink, obtains master control subframe subset sums non-master control subframe subset.
Preferably, described all subframes are at least marked off a master control subframe subset after, and make described main control base station according to the Physical Cell Identifier of main control base station described, before carrying out uplink and downlink signals transmission with each user terminal in described master control subframe subset, can also comprise: utilize dominant Signalling exchange to coordinate the division of subframe subset between base station, and by dominant signaled user terminal sub-frame division result.
Wherein, dominant signaling can adopt the instruction of bitmap, as made in bitmap containing multiple bit, subframe one_to_one corresponding in each bit and one-period, when configuring some subframe subsets, if bit is 1, represent that corresponding subframe belongs to this subframe subset, if bit is 0, represent that corresponding subframe does not belong to this subframe subset.And about the indicating mode of cycle and skew, specifically, if the cycle of a subframe subset configuration be T, for k(, wherein T, k are positive integer in skew), then represent and belong to this subframe subset containing the kth subframe in the one-period of T subframe.
Preferably, in the implementation method of the user terminal of multi-cell of the embodiment of the present invention, can also comprise: sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset; Described non-master control subframe subset carries out uplink and downlink signals transmission with corresponding non-main control base station.
Preferably, the subframe subset division result receiving base station can also comprise: the dominant signaling receiving base station, obtains subframe subset division result.
Below to be embodied as example for adopting the homogeneous frequency adjacent area of TDD-LTE to carry out multiple cell, describe the implementation procedure of the embodiment of the present invention in detail.
Embodiment 1:
The embodiment of the present invention 1 is the implementation method of the virtual multiple cell in base station, and concrete steps are see Fig. 3.
Step 301: determine non-main control base station and a main control base station.
In the embodiment of the present invention, under adjacent 2 community A, community B are all operated in TDD-LTE pattern and carrier frequency is identical, community A and community B has different PCI, and namely respective PCI is respectively PCI-a, PCI-b.First, a main control base station is determined by information interaction between community A and community B, in this step, introduce a virtual base station S as main control base station, virtual base station S is arranged on community A and community B, and PCI is that PCI-s, PCI-s and PCI-a and PCI-b are all different, see Fig. 4, then now community A and community B is non-main control base station.
In addition, the method for introducing virtual base station S is not limited to the one in the present embodiment, and such as, virtual base station S can also be separately set on the A of community, now PCI-s can be identical with PCI-a, also can be different from PCI-a; Or be arranged on separately by virtual base station S on the B of community, PCI-s can be identical with PCI-b, also can be different.
Step 302: all subframes are all marked off non-master control subframe subset sums master control subframe subset.
In this step, be all 2 subframe subsets according to model split shown in Fig. 5 by all subframes, wherein, first subset division carried out to descending sub frame, then by HARQ timing corresponding relation, recessive subset division is carried out to sub-frame of uplink.In the embodiment of the present invention, for community A, first subframe subset is made up of the subframe #0/1/2/5/6/7 of each radio frames, the corresponding PCI-a of PCI1, and second subframe subset is made up of the subframe #3/4/8/9 of each radio frames, the corresponding PCI-s of PCI2; For community B, make first subframe subset be made up of the subframe #0/1/2/5/6/7 of each radio frames, the corresponding PCI-b of PCI1, second subframe subset is made up of the subframe #3/4/8/9 of each radio frames, the corresponding PCI-s of PCI2.Therefore, for community A and community B, first subframe subset is non-master control subframe subset, and second subframe subset is master control subframe subset.
In subframe subset division process, dominant Signalling exchange can be utilized to coordinate the division of subframe subset between base station, and its dominant signaling can indicate for bitmap, also can be cycle and skew instruction.In embodiments of the present invention, as shown in Figure 5, can make containing 20 bits in bitmap, the subframe one_to_one corresponding in each bit and one-period, wherein the cycle is the subframe of 20 shown in figure or 20ms.During a configuration subframe subset, if bit is 1, represent that corresponding subframe belongs to this subframe subset, if bit is 0, represent that corresponding subframe does not belong to this subframe subset.
Step 303: by dominant signaled user terminal sub-frame division result.
Step 304: make main control base station according to the Physical Cell Identifier PCI-s of main control base station, carry out uplink and downlink signals transmission with each user terminal in master control subframe subset.
In the embodiment of the present invention, the communication quality of the delay sensitive business (as voice) that the handover delay in order to avoid cell merge causes declines, and the delay sensitive business such as voice can be placed on community S, is also that main control base station is transmitted.In transmission, in second subframe subset of each community, each DL subframe (i.e. subframe #4/9) will carry out generation and the transmission of downlink physical signal and/or down physical channel in accordance with PCI-s, comprising: generate the symbol of CRS according to PCI-s and determine the frequency domain position etc. of CRS; And on each UL subframe (i.e. subframe #3/8), then carry out the reception process of ascending physical signal signal and uplink physical channel in accordance with PCI-s.
Above for be the situation that community S is arranged on community A and community B, if community S is arranged on separately on the A of community, then only in second subframe subset of community A, each DL subframe (i.e. subframe #4/9) carries out generation and the transmission of downlink physical signal and/or down physical channel in accordance with PCI-s; Each UL subframe (i.e. subframe #3/8) carries out the reception process of ascending physical signal signal and uplink physical channel in accordance with PCI-s, second subframe subset of community B does not carry out uplink and downlink signals transmission.In like manner, if community S is arranged on separately on the B of community, with regard in second subframe subset of Zhi community B, each DL subframe (i.e. subframe #4/9) carries out generation and the transmission of downlink physical signal and/or down physical channel in accordance with PCI-s; Each UL subframe (i.e. subframe #3/8) carries out the reception process of ascending physical signal signal and uplink physical channel in accordance with PCI-s, second subframe subset of community A does not carry out uplink and downlink signals transmission.
Step 305: make non-main control base station according to Physical Cell Identifier PCI-a or PCI-b of non-main control base station, carries out uplink and downlink signals transmission with user terminal in corresponding non-master control subframe subset.
In transmission, non-delay sensitive business is transmitted through non-main control base station A or B.In first subframe subset of community A, generation and transmission that each DL subframe (i.e. subframe #0/1/5/6) carries out downlink physical signal and/or down physical channel in accordance with PCI-a, comprising: generate the symbol of CRS according to PCI-a and determine the frequency domain position etc. of CRS; And on each UL subframe (i.e. subframe #2/7), then carry out the reception process of ascending physical signal signal and uplink physical channel in accordance with PCI-a.
In first subframe subset of community B, generation and transmission that each DL subframe (i.e. subframe #0/1/5/6) carries out downlink physical signal and/or down physical channel in accordance with PCI-b, comprising: generate the symbol of CRS according to PCI-b and determine the frequency domain position etc. of CRS; And on each UL subframe (i.e. subframe #2/7), then carry out the reception process of ascending physical signal signal and uplink physical channel in accordance with PCI-b.
So far, then the overall process of the multiple cell implementation method of the embodiment of the present invention 1 base station end is completed.
Embodiment 2:
The embodiment of the present invention 2 is the implementation method of base station multiple cell, and concrete steps are see Fig. 6.
Step 601: determine non-main control base station and a main control base station.
In the embodiment of the present invention 2, there are 3 communities: community A, community B and community S, under being all operated in TDD-LTE pattern and carrier frequency is identical, its PCI had is respectively PCI-a, PCI-b and PCI-s.First, by information interaction between each community, determine that community S is as main control base station, community A, community B are non-main control base station, see Fig. 7.
Step 602: subframe is all marked off master control subframe subset.
In this step, be all 2 subframe subsets according to model split shown in Fig. 5 by all subframes in community A, community B and community S, wherein, first subset division is carried out to descending sub frame, then by HARQ timing corresponding relation, recessive subset division is carried out to sub-frame of uplink.In the embodiment of the present invention, for community A, first subframe subset is made up of the subframe #0/1/2/5/6/7 of each radio frames, the corresponding PCI-a of PCI1, and second subframe subset is made up of the subframe #3/4/8/9 of each radio frames, the corresponding PCI-s of PCI2; For community B, make first subframe subset be made up of the subframe #0/1/2/5/6/7 of each radio frames, the corresponding PCI-b of PCI1, second subframe subset is made up of the subframe #3/4/8/9 of each radio frames, the corresponding PCI-s of PCI2; For community S, also make first subframe subset be made up of the subframe #0/1/2/5/6/7 of each radio frames, the corresponding PCI-s of PCI1, second subframe subset is made up of the subframe #3/4/8/9 of each radio frames, and PCI2 is corresponding PCI-s also.Therefore, for community A, community B and community S, first subframe subset is non-master control subframe subset, and second subframe subset is master control subframe subset.
In subframe subset division process, dominant Signalling exchange can be utilized to coordinate the division of subframe subset between base station, and its dominant signaling can indicate for bitmap, also can be cycle and skew instruction.In the embodiment of the present invention 2, as shown in Figure 5, can make containing 20 bits in bitmap, the subframe one_to_one corresponding in each bit and one-period, wherein the cycle is the subframe of 20 shown in figure or 20ms.During a configuration subframe subset, if bit is 1, represent that corresponding subframe belongs to this subframe subset, if bit is 0, represent that corresponding subframe does not belong to this subframe subset.
Step 603: by dominant signaled user terminal sub-frame division result.
Step 604: make main control base station according to the Physical Cell Identifier PCI-s of main control base station, carry out uplink and downlink signals transmission with each user terminal in master control subframe subset.
In the embodiment of the present invention, the communication quality of the delay sensitive business (as voice) that the handover delay in order to avoid cell merge causes declines, and the delay sensitive business such as voice can be placed on community S, is also that main control base station is transmitted.In transmission, in the master control subframe subset of community S, each DL subframe (i.e. subframe #4/9) will carry out generation and the transmission of downlink physical signal and/or down physical channel in accordance with PCI-s, comprising: generate the symbol of CRS according to PCI-s and determine the frequency domain position etc. of CRS; And on each UL subframe (i.e. subframe #3/8), then carry out the reception process of ascending physical signal signal and uplink physical channel in accordance with PCI-s.
Step 605: make non-main control base station carry out uplink and downlink signals transmission with user terminal according to the Physical Cell Identifier of non-main control base station in corresponding non-master control subframe subset.
In transmission, non-delay sensitive business is transmitted through non-main control base station A or B.In first subframe subset of community A, generation and transmission that each DL subframe (i.e. subframe #0/1/5/6) carries out downlink physical signal and/or down physical channel in accordance with PCI-a, comprising: generate the symbol of CRS according to PCI-a and determine the frequency domain position etc. of CRS; And on each UL subframe (i.e. subframe #2/7), then carry out the reception process of ascending physical signal signal and uplink physical channel in accordance with PCI-a.
In first subframe subset of community B, generation and transmission that each DL subframe (i.e. subframe #0/1/5/6) carries out downlink physical signal and/or down physical channel in accordance with PCI-b, comprising: generate the symbol of CRS according to PCI-b and determine the frequency domain position etc. of CRS; And on each UL subframe (i.e. subframe #2/7), then carry out the reception process of ascending physical signal signal and uplink physical channel in accordance with PCI-b.
And for community S, first subframe subset, be also in non-master control subframe subset, not by the impact of multiple cell implementation method in the present embodiment, still normally uplink and downlink signals transmission can be carried out for the user of oneself community.
So far, then the overall process of the virtual multiple cell implementation method of the embodiment of the present invention 2 base station end is completed.
Embodiment 3:
The embodiment of the present invention 3 is the implementation method of the virtual multiple cell of user terminal, and concrete steps are see Fig. 8.
Step 801: the subframe subset division result receiving base station, all marks off non-master control subframe subset sums master control subframe subset by all subframes.
In this step, receive the dominant signaling of base station to obtain sub-frame division result, be all 2 subframe subsets according to model split shown in Fig. 5 by all subframes, in the embodiment of the present invention, first subframe subset is made up of the subframe #0/1/2/5/6/7 of each radio frames, corresponding PCI-a or PCI-b of PCI1, second subframe subset is made up of the subframe #3/4/8/9 of each radio frames, the corresponding PCI-s of PCI2.Therefore, first subframe subset is non-master control subframe subset, and corresponding to community A or community B, wherein corresponding relation depends on UE position in the lte networks; Second subframe subset is master control subframe subset.
Step 802: carry out uplink and downlink signals transmission with main control base station in master control subframe subset.
In the embodiment of the present invention, the communication quality of the delay sensitive business (as voice) that the handover delay in order to avoid cell merge causes declines, and the delay sensitive business such as voice can be placed on community S, is also that main control base station is transmitted.In transmission, in second subframe subset, each DL subframe (i.e. subframe #4/9) will carry out the reception process of downlink physical signal and/or down physical channel in accordance with PCI-s; And on each UL subframe (i.e. subframe #3/8), then carry out generation and the transmission of ascending physical signal signal and uplink physical channel in accordance with PCI-s, comprising: determine basic sequence and redirect pattern etc. thereof.
Step 803: carry out uplink and downlink signals transmission with corresponding non-main control base station in non-master control subframe subset.
In transmission, non-delay sensitive business is transmitted through non-main control base station A or B.From UE side, for first subframe subset, UE according to PCI-a or PCI-b downlink data receiving in DL subframe, will send upstream data according to PCI-a or PCI-b in the UL sub-frame, that is, UE will communicate with community A or community B first subframe subset.UE is from community A to the scene of community B movement, UE first communicates with community A first subframe subset, and after cell merge completes, UE will communicate with community B first subframe subset.
Wherein, with the communication process of community A, each DL subframe (i.e. subframe #0/1/5/6) in first subframe subset carries out the reception process of downlink physical signal and/or down physical channel in accordance with PCI-a; And on each UL subframe (i.e. subframe #2/7), then carry out generation and the transmission of ascending physical signal signal and uplink physical channel in accordance with PCI-a, comprising: determine basic sequence and redirect pattern etc. thereof.
With the communication process of community B, each DL subframe (i.e. subframe #0/1/5/6) in first subframe subset carries out the reception process of downlink physical signal and/or down physical channel in accordance with PCI-b; And on each UL subframe (i.e. subframe #2/7), then carry out generation and the transmission of ascending physical signal signal and uplink physical channel in accordance with PCI-b, comprising: determine basic sequence and redirect pattern etc. thereof.
So far, then the overall process of the virtual multiple cell implementation method of the embodiment of the present invention 3 user terminal is completed.
The embodiment of the present invention additionally provides the implement device of a kind of base station multiple cell, see Fig. 9, comprising:
Main control base station determining unit 901, is positioned at all inside of base station, for carrying out base station information interaction, determines non-main control base station and a main control base station;
Subset division unit 902, for all subframes at least being marked off a master control subframe subset, the Physical Cell Identifier of the corresponding described main control base station of described master control subframe subset;
Be positioned at the master control transmission unit 903 of described main control base station, be connected with described subset division unit 902 with described main control base station determining unit 901 respectively, for the Physical Cell Identifier according to main control base station, in described master control subframe subset, carry out uplink and downlink signals transmission with each user terminal.
Preferably, main control base station determining unit 901 also for: one of them of multiple base station is defined as main control base station, and all the other are non-main control base station; Or all base stations are defined as non-main control base station, and introducing a virtual base station is main control base station.Described main control base station is used for propagation delay time sensitive traffic, and described non-main control base station is for transmitting non-delay sensitive business.
Preferably, subset division unit 902 also for: sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset.Correspondingly, device can also comprise: non-master control transmission unit 1001, see Figure 10, be positioned at non-main control base station, be connected with subset division unit 902 with main control base station determining unit 901 respectively, for the Physical Cell Identifier according to non-main control base station, in corresponding non-master control subframe subset, carry out uplink and downlink signals transmission with user terminal.
Preferably, subset division unit 902 also for: independently subframe subset division is carried out to sub-frame of uplink and descending sub frame, obtains master control subframe subset sums non-master control subframe subset; Or, subframe subset division is carried out to descending sub frame, by HARQ timing corresponding relation, recessive subframe subset division is carried out to sub-frame of uplink, obtain master control subframe subset sums non-master control subframe subset.
Preferably, master control transmission unit 903 and non-master control transmission unit 1001 also for: utilize dominant Signalling exchange to coordinate the division of subframe subset between base station, by dominant signaled user terminal sub-frame division result.
Preferably, dominant signaling can comprise: bitmap indicates; Or, cycle and skew instruction.
The embodiment of the present invention also provides a kind of implement device of user terminal of multi-cell, see Figure 11, comprising:
Division unit 1101, for receiving the subframe subset division result of base station, at least marks off a master control subframe subset by subframe, the Physical Cell Identifier of the corresponding main control base station of described master control subframe subset;
Transmission unit 1102, for carrying out uplink and downlink signals transmission with main control base station in described master control subframe subset.
Preferably, division unit 1101 also for: sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset; Transmission unit 1102 also for: in described non-master control subframe subset, carry out uplink and downlink signals transmission with corresponding non-main control base station.
Preferably, division unit 1101 also for: receive the dominant signaling of base station, obtain subframe subset division result.
Preferably, dominant signaling can comprise: bitmap indicates; Or, cycle and skew instruction.
Visible, the embodiment of the present invention has following beneficial effect:
In the implementation method and device of the base station that the embodiment of the present invention provides and user terminal of multi-cell, can by the division of main control base station and non-main control base station, the subframe subset of corresponding main control base station in all user terminal subframes is made all to carry out uplink and downlink signals transmission with main control base station, wherein, the delay sensitive business such as voice can be transmitted by main control base station, all the other business are by non-master control base-station transmission, thus avoid and cause UE data transmission rate to reduce with frequent switching between small-cell under frequently small-cell dense deployment scene, the technical problem of the communication quality decline of delay sensitive business, ensure that the continuous transmission of delay sensitive business, reduce the impact on throughput of system and Consumer's Experience.
Last it is noted that above embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.

Claims (20)

1. an implementation method for base station multiple cell, is characterized in that, comprising:
Determine non-main control base station and a main control base station;
All subframes are at least marked off a master control subframe subset, the Physical Cell Identifier of the corresponding described main control base station of described master control subframe subset;
Make described main control base station according to the Physical Cell Identifier of main control base station, in described master control subframe subset, carry out uplink and downlink signals transmission with each user terminal.
2. the implementation method of base station according to claim 1 multiple cell, is characterized in that:
Describedly determine that non-main control base station and a main control base station comprise: one of them of multiple base station is defined as main control base station, and all the other are non-main control base station; Or all base stations are defined as non-main control base station, and introducing a virtual base station is main control base station;
Described main control base station is used for propagation delay time sensitive traffic, and described non-main control base station is for transmitting non-delay sensitive business.
3. the implementation method of base station according to claim 1 multiple cell, is characterized in that:
Describedly all subframes are at least marked off a master control subframe subset and also comprise: sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset;
Described method also comprises: make non-main control base station according to the Physical Cell Identifier of non-main control base station, carries out uplink and downlink signals transmission with described user terminal in corresponding non-master control subframe subset.
4. the implementation method of base station according to claim 3 multiple cell, is characterized in that, describedly all subframes is at least marked off a master control subframe subset and comprises:
Independently subframe subset division is carried out to sub-frame of uplink and descending sub frame, obtains master control subframe subset sums non-master control subframe subset;
Or, subframe subset division is carried out to descending sub frame, by HARQ timing corresponding relation, recessive subframe subset division is carried out to sub-frame of uplink, obtain master control subframe subset sums non-master control subframe subset.
5. the implementation method of base station according to any one of claim 1 to 4 multiple cell, it is characterized in that, described all subframes are at least marked off a master control subframe subset after, and make described main control base station according to the Physical Cell Identifier of main control base station described, before carrying out uplink and downlink signals transmission with each user terminal in described master control subframe subset, also comprise:
Utilize dominant Signalling exchange to coordinate the division of subframe subset between base station, and by dominant signaled user terminal sub-frame division result.
6. the implementation method of base station according to claim 5 multiple cell, is characterized in that, described dominant signaling comprises:
Bitmap indicates; Or, cycle and skew instruction.
7. an implementation method for user terminal of multi-cell, is characterized in that, comprising:
Receive the subframe subset division result of base station, subframe is at least marked off a master control subframe subset, the Physical Cell Identifier of the corresponding main control base station of described master control subframe subset;
Described master control subframe subset carries out uplink and downlink signals transmission with main control base station.
8. the implementation method of user terminal of multi-cell according to claim 7, is characterized in that, described method also comprises:
Sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset;
Described non-master control subframe subset carries out uplink and downlink signals transmission with corresponding non-main control base station.
9. the implementation method of the user terminal of multi-cell according to claim 7 or 8, is characterized in that, the subframe subset division result of described reception base station comprises:
Receive the dominant signaling of base station, obtain subframe subset division result.
10. the implementation method of user terminal of multi-cell according to claim 9, is characterized in that, described dominant signaling comprises:
Bitmap indicates; Or, cycle and skew instruction.
The implement device of 11. 1 kinds of base station multiple cell, is characterized in that, comprising:
Main control base station determining unit, is positioned at all inside of base station, for carrying out base station information interaction, determines non-main control base station and a main control base station;
Subset division unit, for all subframes at least being marked off a master control subframe subset, the Physical Cell Identifier of the corresponding described main control base station of described master control subframe subset;
Be positioned at the master control transmission unit of described main control base station, be connected with described subset division unit with described main control base station determining unit respectively, for the Physical Cell Identifier according to main control base station, in described master control subframe subset, carry out uplink and downlink signals transmission with each user terminal.
The implement device of 12. base station according to claim 11 multiple cell, is characterized in that:
Described main control base station determining unit is used for: one of them of multiple base station is defined as main control base station, and all the other are non-main control base station; Or all base stations are defined as non-main control base station, and introducing a virtual base station is main control base station;
Described main control base station is used for propagation delay time sensitive traffic, and described non-main control base station is for transmitting non-delay sensitive business.
The implement device of 13. base station according to claim 11 multiple cell, is characterized in that:
Described subset division unit also for: sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset;
Described device also comprises: non-master control transmission unit, be positioned at described non-main control base station, be connected with described subset division unit with described main control base station determining unit respectively, for the Physical Cell Identifier according to non-main control base station, in corresponding non-master control subframe subset, carry out uplink and downlink signals transmission with described user terminal.
The implement device of 14. base station according to claim 13 multiple cell, is characterized in that, described subset division unit is used for:
Independently subframe subset division is carried out to sub-frame of uplink and descending sub frame, obtains master control subframe subset sums non-master control subframe subset;
Or, subframe subset division is carried out to descending sub frame, by HARQ timing corresponding relation, recessive subframe subset division is carried out to sub-frame of uplink, obtain master control subframe subset sums non-master control subframe subset.
The implement device of 15. base station according to claim 13 multiple cell, is characterized in that, described master control transmission unit and non-master control transmission unit also for:
Utilize dominant Signalling exchange to coordinate the division of subframe subset between base station, by dominant signaled user terminal sub-frame division result.
The implement device of 16. base station according to claim 15 multiple cell, is characterized in that, described dominant signaling comprises:
Bitmap indicates; Or, cycle and skew instruction.
The implement device of 17. 1 kinds of user terminal of multi-cell, is characterized in that, comprising:
Division unit, for receiving the subframe subset division result of base station, at least marks off a master control subframe subset by subframe, the Physical Cell Identifier of the corresponding main control base station of described master control subframe subset;
Transmission unit, for carrying out uplink and downlink signals transmission with main control base station in described master control subframe subset.
The implement device of 18. user terminal of multi-cell according to claim 17, is characterized in that:
Described division unit also for: sub-frame division is gone out one or more non-master control subframe subset, the Physical Cell Identifier of the corresponding non-main control base station of each non-master control subframe subset;
Described transmission unit also for: in described non-master control subframe subset, carry out uplink and downlink signals transmission with corresponding non-main control base station.
The implement device of 19. user terminal of multi-cell according to claim 17 or 18, is characterized in that, described division unit also for:
Receive the dominant signaling of base station, obtain subframe subset division result.
The implement device of 20. user terminal of multi-cell according to claim 19, is characterized in that, described dominant signaling comprises:
Bitmap indicates; Or, cycle and skew instruction.
CN201410073791.0A 2014-02-28 2014-02-28 Base station and user terminal multi-cell implement method and apparatus Pending CN104883740A (en)

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