CN103997789B - A kind of physical uplink control channel resource allocation methods and base station - Google Patents
A kind of physical uplink control channel resource allocation methods and base station Download PDFInfo
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- CN103997789B CN103997789B CN201310054136.6A CN201310054136A CN103997789B CN 103997789 B CN103997789 B CN 103997789B CN 201310054136 A CN201310054136 A CN 201310054136A CN 103997789 B CN103997789 B CN 103997789B
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Abstract
This application discloses a kind of physical uplink control channel PUCCH resource distribution methods, this method comprises: base station is since the both ends for the uplink band that each FDD cell shares, frequency resource is sequentially allocated for N number of FDD cell, it is transmitted for PUCCH 2/2a/2b and PUCCH 1/1a/1b, and remaining frequency resource is used for PUSCH transmission.Based on same inventive concept, the application also proposes a kind of base station, can be avoided collision problem of multiple FDD cells when using same uplink control channel.
Description
Technical field
This application involves field of communication technology, in particular to a kind of physical uplink control channel (PUCCH) resource point
Method of completing the square and base station.
Background technique
Long term evolution (Long Term Evolution, LTE) project is the evolution of 3G, it improves and enhances the sky of 3G
Middle access technology, using orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM)
Sole criterion with multiple-input and multiple-output (Multi-input Multi-output, MIMO) as its wireless network evolution.
The main performance target of 3GPP LTE project include: 20MHz spectral bandwidth be capable of providing downlink 100Mbps, on
The peak rate of row 50Mbps；Improve the performance of Cell Edge User；Improve cell capacity；Reduce system delay, user plane
Internal unidirectional transmission time delay is lower than 5ms, controls plane and is lower than 50ms from sleep state to state of activation transit time, from resident shape
The transit time of state to state of activation is less than 100ms；Support the MPS process of 100Km radius；It can be 350Km/h high-speed mobile
The access service of user offer > 100kbps；Support pairs of or non-paired frequency spectrum, and flexibly configurable 1.25MHz to 20MHz is more
Kind bandwidth.
When operator has in pairs with not pairs of frequency range, flexible use spectrum is very important.In order to integrate point
Scattered frequency spectrum achievees the purpose that abundant working frequency, has the method for many flexible use spectrums, including carrier aggregation technology, has
The UE of carrier aggregation capacity can polymerize unpaired band downlink in such a way that carrier wave polymerize to reach high-speed down data
The purpose of transmission, this method are more demanding to terminal grade.
Another method is that azygous frequency range may be used as frequency division duplex (Frequency Division
Duplexing, FDD) band downlink, be paired into a new FDD frequency range with the uplink band of other FDD in pairs.Referring to
Fig. 1, Fig. 1 are the structural schematic diagram that not pairs of frequency range and pairs of frequency range form new FDD frequency range.In Fig. 1, the first of FDD cell 1
Uplink band and the first band downlink are the pairs of frequency ranges of FDD, and the azygous band downlink as FDD is in FDD cell 2
Second band downlink.The second band downlink and the first uplink band are also now paired into a new FDD frequency range.
It is said from terminal point, there are two LTE FDD cells, when two cells use identical ascending resource, by
It is sent on a up-link carrier in the uplink control channel of two cells, therefore, the terminal of two cells is in the same PRB pair
Collision can be clashed when upper transmission, when using identical ascending resource there are multiple cells, this conflict collision will
It can be more.
Summary of the invention
In view of this, the application provides a kind of physical uplink control channel resource allocation methods and base station, can keep away
Exempt from collision problem of multiple FDD cells when using same uplink control channel.
In order to solve the above technical problems, the technical scheme of the present invention is realized as follows:
A kind of physical uplink control channel resource allocation methods are applied to same uplink band and different band downlinks
On base station in the LTE network of pairing, when any uplink band matches clock synchronization, the money of the uplink band with N number of band downlink
Source is shared by the corresponding N number of FDD cell of N number of band downlink, comprising:
Since the both ends of the uplink band, it is sequentially allocated frequency resource for N number of FDD cell, is used for PUCCH2/2a/
2b and PUCCH 1/1a/1b transmission, and remaining frequency resource is used for PUSCH transmission, wherein for the distribution of each FDD cell
PUCCH 2/2a/2b and PUCCH 1/1a/1b are symmetrical at the both ends of the uplink band.
Preferably, the method further includes:
It in the cell for last dividing frequency resource, distributes between PUCCH 2/2a/2b and PUCCH 1/1a/1b, distribution
RB transmission of the frequency resource for PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
A kind of base station can be applied in the LTE network that same uplink band is matched from different band downlinks, base station packet
It includes: configuration unit and allocation unit；
The configuration unit matches clock synchronization with N number of band downlink for configuring any uplink band, the uplink band
Resource is shared by the corresponding N number of FDD cell of N number of band downlink；
The allocation unit is small for N number of FDD for since the both ends of the uplink band of the configuration of described dispensing unit
Area is sequentially allocated frequency resource, transmits for PUCCH 2/2a/2b and PUCCH 1/1a/1b, and remaining frequency resource is used
In PUSCH transmission, wherein be the PUCCH 2/2a/2b and PUCCH1/1a/1b of each FDD cell distribution the two of the uplink band
It holds symmetrical.
Preferably,
The allocation unit is further used for distributing PUCCH2/2a/2b in the FDD cell for last dividing frequency resource
Between PUCCH 1/1a/1b, RB transmission of the dividing frequency resource for PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
In conclusion the application by base station since each FDD cell share uplink band both ends, for N number of FDD
Cell is sequentially allocated frequency resource, transmits for PUCCH 2/2a/2b and PUCCH 1/1a/1b, and by remaining frequency resource
For PUSCH transmission, collision problem of multiple FDD cells when using same uplink control channel can be avoided.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that not pairs of frequency range and pairs of frequency range form new FDD frequency range；
Fig. 2 is physical uplink control channel resource allocation methods flow diagram in the specific embodiment of the invention；
Fig. 3 is physical uplink control channel resource allocation structure schematic diagram in the specific embodiment of the invention；
Fig. 4 is the structural schematic diagram for being applied to the base station of above-mentioned technology in the specific embodiment of the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, right hereinafter, referring to the drawings and the embodiments,
Scheme of the present invention is described in further detail.
A kind of physical uplink control channel resource allocation methods are proposed in the embodiment of the present invention, are applied to same uplink
On the base station in LTE network that frequency range is matched from different band downlinks, base station is distinguished by the resource location of uplink control channel
Different community can be avoided collision problem of multiple FDD cells when using same uplink control channel.
Referring to fig. 2, Fig. 2 is that physical uplink control channel resource allocation methods process is shown in the specific embodiment of the invention
It is intended to.Specific steps are as follows:
Step 201, when any uplink band matches clock synchronization with N number of band downlink, the frequency resource of the uplink band is by under N number of
The corresponding N number of FDD cell of line frequency section shares.
Step 202, base station is sequentially allocated frequency resource since the both ends of the uplink band for N number of FDD cell, uses
It is transmitted in PUCCH 2/2a/2b and PUCCH 1/1a/1b.
Base station is PUCCH 2/2a/2b and the PUCCH 1/1a/1b of each FDD cell distribution at the both ends pair of the uplink band
Claim distribution.Wherein, what PUCCH 2/2a/2b was carried is the feedback information of CSI, in system configuration, the number of this part resource
Amount is relatively-stationary, therefore they are distributed in as the outside of the frequency band where the frequency resource of each cell distribution, resource
Particular number semi-static instruction is carried out by high-level signaling.
PUCCH 1/1a/1b carrying is scheduling request information and the ACK information to downlink data, and resource quantity is dynamic
Variation, it is related to the quantity of the downlink data sent in cell, therefore by its point in the uplink control channel design in standard
It fits over close to the position of center frequency, facilitates the transmission that the frequency resource of system spare is used for PUSCH.But in the present embodiment
For the small allocating frequency resource of multiple FDD, therefore, only for closest to the FDD cell distribution of center frequency in the upstream band
PUCCH 1/1a/1b can play the role of this.
In the frequency domain resource of occupied 1 RB-pair, PUCCH 2/2a/2b and PUCCH 1/1a/1b are used
The mode of code point is further multiplexed multiple PUCCH channels.Therefore when the PUCCH 2/2a/2b channel quantity of configuration is occupied
When number of resources is not RB-pair integral multiple, incited somebody to action in the intersection of PUCCH 2/2a/2b and PUCCH 1/1a/1b frequency domain
There are them in certain 1 RB-pair in a manner of code point the case where mixed transport.
Base station is distributed between PUCCH 2/2a/2b and PUCCH 1/1a/1b in the cell for last dividing frequency resource,
RB transmission of the dividing frequency resource for PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.I.e. from the uplink band both ends
When starting allocating frequency resource small for each FDD, the FDD cell of last dividing frequency resource, i.e. distance are used for transmission PUSCH biography
The FDD cell of the adjacent frequency resource allocation of defeated frequency.
Base station is mixed in the frequency resource allocation closest to PUSCH to PUCCH 1/1a/1b and PUCCH 2/2a/2b
RB, it is close also for the format of the physical uplink control channel of same standard in order to save resource overhead, convenient for processing.
Step 203, remaining frequency resource is used for Physical Uplink Shared Channel (PUSCH) transmission by base station.
The content that the application is indicated by signaling indicates the PUCCH of multiple cells compared with standard compared to signaling is increased
1/1a/1b and PUCCH 2/2a/2b, and PUCCH 1/ is indicated in the nearest FDD cell of the center frequency apart from the uplink band
The RB of 1a/1b and PUCCH 2/2a/2b mixing.
Therefore it is provided in the specific embodiment of the invention by distinguishing the upload control for each cell for sharing the uplink control channel
Source avoids the collision problem that different FDD cells share the uplink control channel to distinguish the uplink control channel of each cell.
Below with N for 2, i.e., when two FDD cells share a uplink band, for frequency resource allocation, come specifically
It is bright how to realize physical uplink control channel resource allocation methods.It is object in the specific embodiment of the invention referring to Fig. 3, Fig. 3
Manage uplink control channel resource distribution structure schematic diagram.
As seen from Figure 3, it is 1 dividing frequency resource of cell since the both ends of the uplink band, distributes for cell for passing
The frequency resource of defeated PUCCH2/2a/2b and PUCCH 1/1a/1b, and the resource of first distribution transmission PUCCH 2/2a/2b, after
The resource of distribution transmission PUCCH 1/1a/1b, what it is in the upstream band is in symmetrical distribution.After being distributed for FDD cell 1, it is
FDD cell 2 is distributed, and distributes the mode of PUCCH 2/2a/2b and PUCCH 1/1a/1b with FDD cell 1, due to FDD cell 2 away from
It is nearest from the centre frequency of the uplink band, therefore distribute and be used for transmission between PUCCH2/2a/2b and PUCCH 1/1a/1b
The frequency resource of the RB of PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
Same inventive concept is based in the specific embodiment of the invention, it is also proposed that a kind of base station can be applied to same uplink
In the LTE network that frequency range is matched from different band downlinks.Referring to fig. 4, Fig. 4 is to be applied to above-mentioned skill in the specific embodiment of the invention
The structural schematic diagram of the base station of art.The base station includes: configuration unit 401 and allocation unit 402.
Configuration unit 401 matches clock synchronization with N number of band downlink for configuring any uplink band, the uplink band
Resource is shared by the corresponding N number of FDD cell of N number of band downlink.
Allocation unit 402, for since the both ends for the uplink band that configuration unit 401 configures, for N number of FDD cell
It is sequentially allocated frequency resource, is transmitted for PUCCH 2/2a/2b and PUCCH 1/1a/1b, and remaining frequency resource is used for
PUSCH transmission, wherein be the PUCCH 2/2a/2b and PUCCH1/1a/1b of each FDD cell distribution at the both ends of the uplink band
It is symmetrical.
Preferably,
Allocation unit 402 is further used for distributing PUCCH2/2a/2b in the FDD cell for last dividing frequency resource
Between PUCCH 1/1a/1b, RB transmission of the dividing frequency resource for PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
The unit of above-described embodiment can integrate in one, can also be deployed separately；It can be merged into a unit, it can also
To be further split into multiple subelements.
In conclusion base station is since the both ends for the uplink band that each FDD cell shares in the specific embodiment of the invention
N number of FDD cell is sequentially allocated frequency resource, transmits for PUCCH 2/2a/2b and PUCCH1/1a/1b, and by remaining frequency
Rate resource is used for PUSCH transmission.The upload control resource of each cell of the uplink control channel is shared by distinguishing, it is each to distinguish
The uplink control channel of cell can be avoided collision problem of multiple FDD cells when using same uplink control channel.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention.It is all
Within the spirit and principles in the present invention, any modification, equivalent replacement, improvement and so on should be included in protection of the invention
Within the scope of.
Claims (4)
1. a kind of physical uplink control channel PUCCH resource distribution method is applied to same uplink band and different downlinks
On base station in the long term evolution LTE network of frequency range pairing, which is characterized in that when any uplink band is the same as N number of downlink frequency
Section matches clock synchronization, and the resource of the uplink band is shared by the corresponding N number of Frequency Division Duplex FDD cell of N number of band downlink, comprising:
Since the both ends of the uplink band, be sequentially allocated frequency resource for N number of FDD cell, for PUCCH2/2a/2b and
PUCCH 1/1a/1b transmission, and remaining frequency resource is used for Physical Uplink Shared Channel PUSCH transmission, wherein it is each
PUCCH 2/2a/2b and the PUCCH 1/1a/1b of FDD cell distribution are symmetrical at the both ends of the uplink band.
2. the method according to claim 1, wherein the method further includes:
In the cell for last dividing frequency resource, distribute between PUCCH 2/2a/2b and PUCCH 1/1a/1b, dividing frequency
Resource block RB transmission of the resource for PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
3. a kind of base station can be applied in the long term evolution LTE network that same uplink band is matched from different band downlinks, special
Sign is that the base station includes: configuration unit and allocation unit；
The configuration unit, for configuring any uplink band with N number of band downlink with clock synchronization, the resource of the uplink band
It is shared by the corresponding N number of Frequency Division Duplex FDD cell of N number of band downlink；
The allocation unit, for since the both ends of the uplink band of the configuration of described dispensing unit, for N number of FDD cell according to
Sub-distribution frequency resource is transmitted for physical uplink control channel PUCCH 2/2a/2b and PUCCH 1/1a/1b, and will
Remaining frequency resource is used for Physical Uplink Shared Channel PUSCH transmission, wherein for the PUCCH 2/2a/ of each FDD cell distribution
2b and PUCCH 1/1a/1b is symmetrical at the both ends of the uplink band.
4. base station according to claim 3, which is characterized in that
The allocation unit, is further used in the FDD cell for last dividing frequency resource, distribute PUCCH2/2a/2b and
Between PUCCH 1/1a/1b, RB transmission of the dividing frequency resource for PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
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| CN101729125A (en) * | 2008-10-31 | 2010-06-09 | 大唐移动通信设备有限公司 | Method and device for transmitting signal |
| CN102083211A (en) * | 2010-03-29 | 2011-06-01 | 大唐移动通信设备有限公司 | Determining method and equipment of uplink control channel resources |
| CN102439891A (en) * | 2009-05-12 | 2012-05-02 | 翔跃通信公司 | Dual mode radio for frequency division duplexing and time division duplexing communication modes |
| CN102905270A (en) * | 2012-10-24 | 2013-01-30 | 中国联合网络通信集团有限公司 | Communication method and device for frequency division duplexing (FDD) system and base station |
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2013
- 2013-02-20 CN CN201310054136.6A patent/CN103997789B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101729125A (en) * | 2008-10-31 | 2010-06-09 | 大唐移动通信设备有限公司 | Method and device for transmitting signal |
| CN102439891A (en) * | 2009-05-12 | 2012-05-02 | 翔跃通信公司 | Dual mode radio for frequency division duplexing and time division duplexing communication modes |
| CN102083211A (en) * | 2010-03-29 | 2011-06-01 | 大唐移动通信设备有限公司 | Determining method and equipment of uplink control channel resources |
| CN102905270A (en) * | 2012-10-24 | 2013-01-30 | 中国联合网络通信集团有限公司 | Communication method and device for frequency division duplexing (FDD) system and base station |
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| CN103997789A (en) | 2014-08-20 |
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