CN103997789A - Physical uplink control channel resource distribution method and base station - Google Patents
Physical uplink control channel resource distribution method and base station Download PDFInfo
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- CN103997789A CN103997789A CN201310054136.6A CN201310054136A CN103997789A CN 103997789 A CN103997789 A CN 103997789A CN 201310054136 A CN201310054136 A CN 201310054136A CN 103997789 A CN103997789 A CN 103997789A
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Abstract
The application discloses a physical uplink control channel (PUCCH) resource distribution method. The method comprises: a base station distributes frequency resources successively for N frequency division duplexing (FDD) cells by starting with the two ends of an uplink frequency band shared by all FDD cells, wherein the distributed frequency resources are used for PUCCH 2/2a/2b and PUCCH 1/1a/1b transmission and the rest of frequency resources are used for physical uplink shared channel (PUSCH) transmission. On the basis of the same inventive concept, the application also puts forward a base station, thereby avoiding a phenomenon that collision exists when a plurality of FDD cells use the same uplink control channel.
Description
Technical field
The application relates to communication technical field, particularly a kind of physical uplink control channel (PUCCH) resource allocation methods and base station.
Background technology
Long Term Evolution (Long Term Evolution, LTE) project is the evolution of 3G, it improves and has strengthened the aerial access technology of 3G, adopt OFDM (Orthogonal Frequency Division Multiplexing, OFDM) and multiple-input and multiple-output (Multi-input Multi-output, MIMO) as the sole criterion of its wireless network evolution.
The main performance target of 3GPP LTE project comprises: the peak rate that descending 100Mbps, up 50Mbps can be provided in 20MHz spectral bandwidth; Improve the performance of Cell Edge User; Improve cell capacity; Reduce system delay, the inner unidirectional transmission time delay of user plane is lower than 5ms, and control plane is from sleep state to state of activation transit time lower than 50ms, and the transit time from resident state to state of activation is less than 100ms; Support the community of 100Km radius to cover; The access service of >100kbps can be provided for 350Km/h high-speed mobile user; Support paired or non-paired frequency spectrum, and can flexible configuration 1.25MHz to 20MHz various bandwidth.
When operator has in pairs and not in pairs when frequency range, flexible use spectrum is very important.Reach the object of abundant use frequency range in order to integrate the frequency spectrum of dispersion, there is the method for a lot of flexible use spectrums, comprise carrier aggregation technology, the UE with carrier aggregation capacity can be by the mode of carrier aggregation, the unpaired band downlink of polymerization reaches the object of high-speed down data transmission, and this method is had relatively high expectations to terminal grade.
Another method is the band downlink that azygous frequency range can be used as Frequency Division Duplexing (FDD) (Frequency Division Duplexing, FDD), is paired into a new FDD frequency range with other the uplink band of paired FDD.Referring to Fig. 1, Fig. 1 is the structural representation that paired frequency range and paired frequency range form new FDD frequency range.In Fig. 1, the first uplink band of FDD community 1 and the first band downlink are the paired frequency ranges of FDD, and in FDD community 2, the azygous band downlink as FDD is the second band downlink.Now the second band downlink and the first uplink band are also paired into a new FDD frequency range.
From terminal angle, there are two GeLTE FDD communities, when Dang Liangge community is used identical ascending resource, because the ascending control channel of Liang Ge community sends on a up-link carrier, therefore, the terminal of Liang Ge community same PRB on can clash collision while sending, in the time existing multiple communities to use identical ascending resource, this conflict collision will 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 avoid the collision problem of multiple FDD community in the time using same ascending control channel.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
A kind of physical uplink control channel resource allocation methods, be applied on the base station in the LTE network of same uplink band and the pairing of different band downlinks, in the time that arbitrary described uplink band matches with N band downlink, the resource of this uplink band is shared by N N GeFDD community corresponding to band downlink, comprising:
From the two ends of this uplink band, for this N GeFDD community dividing frequency resource successively, for PUCCH2/2a/2b and PUCCH 1/1a/1b transmission, and remaining frequency resource is transmitted for PUSCH, wherein, for PUCCH 2/2a/2b and the PUCCH 1/1a/1b of each FDD cell allocation are symmetrical at the two ends of this uplink band.
Preferably, described method further comprises:
In the community that is last dividing frequency resource, to distribute between PUCCH 2/2a/2b and PUCCH 1/1a/1b, dividing frequency resource is for the RB transmission of PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
A kind of base station, can be applicable in LTE network that same uplink band matches with different band downlinks, and this base station comprises: dispensing unit and allocation units;
Described dispensing unit, while pairing with N band downlink for configuring arbitrary described uplink band, the resource of this uplink band is shared by N N GeFDD community corresponding to band downlink;
Described allocation units, for from the two ends of the uplink band of described dispensing unit configuration, for this N GeFDD community dividing frequency resource successively, for PUCCH 2/2a/2b and PUCCH 1/1a/1b transmission, and remaining frequency resource is transmitted for PUSCH, wherein, for PUCCH 2/2a/2b and the PUCCH1/1a/1b of each FDD cell allocation are symmetrical at the two ends of this uplink band.
Preferably,
Described allocation units, are further used for being last dividing frequency resource FDD community, distribute between PUCCH2/2a/2b and PUCCH 1/1a/1b, dividing frequency resource is for the RB transmission of PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
In sum, the application starts by the two ends of the shared uplink band in Cong Ge FDD community, base station, for this N GeFDD community dividing frequency resource successively, for PUCCH 2/2a/2b and PUCCH 1/1a/1b transmission, and remaining frequency resource is transmitted for PUSCH, can avoid the collision problem of multiple FDD community in the time using same ascending control channel.
Brief description of the drawings
Fig. 1 is the structural representation that paired frequency range and paired frequency range form new FDD frequency range;
Fig. 2 is physical uplink control channel resource allocation methods schematic flow sheet 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 representation that is applied to the base station of above-mentioned technology in the specific embodiment of the invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, scheme of the present invention is described in further detail.
A kind of physical uplink control channel resource allocation methods is proposed in the embodiment of the present invention, be applied on the base station in the LTE network of same uplink band and the pairing of different band downlinks, different districts is distinguished by the resource location of ascending control channel in base station, can avoid the collision problem of multiple FDD community in the time using same ascending control channel.
Referring to Fig. 2, Fig. 2 is physical uplink control channel resource allocation methods schematic flow sheet in the specific embodiment of the invention.Concrete steps are:
Step 201, in the time that arbitrary uplink band matches with N band downlink, the frequency resource of this uplink band is shared by N N GeFDD community corresponding to band downlink.
Step 202, base station, from the two ends of this uplink band, is this N GeFDD community dividing frequency resource successively, for PUCCH 2/2a/2b and PUCCH 1/1a/1b transmission.
Base station is that PUCCH 2/2a/2b and the PUCCH 1/1a/1b of each FDD cell allocation is symmetrical at the two ends of this uplink band.Wherein, what PUCCH 2/2a/2b carried is the feedback information of CSI, in system configuration, the quantity of this part of resource is relatively-stationary, therefore the outside that they is distributed in to the frequency band at the frequency resource place distributing into each community, the concrete quantity of resource is carried out semi-static instruction by high-level signaling.
What PUCCH 1/1a/1b carried is dispatch request information and the ACK information to downlink data, resource quantity is dynamic change, relevant to the quantity of the downlink data sending in community, therefore in the design of the ascending control channel in standard, be distributed in the position near frequency center, the convenient transmission for PUSCH by the frequency resource of system spare.But in the present embodiment, be multiple FDD cell allocation frequency resources, therefore, only have the PUCCH 1/1a/1b of the FDD cell allocation for approaching most this upstream band medium frequency center can play this effect.
In the frequency domain resource of 1 shared RB-pair, further multiplexing multiple PUCCH channels of mode that PUCCH 2/2a/2b and PUCCH 1/1a/1b have adopted code to divide.Therefore in the time that the shared number of resources of PUCCH 2/2a/2b channel quantity of configuration is not RB-pair integral multiple, the situation of the mode mixed transport that they divide with code in certain 1 RB-pair will be there is at the intersection of PUCCH 2/2a/2b and PUCCH 1/1a/1b frequency domain.
Base station, in the community that is last dividing frequency resource, is distributed between PUCCH 2/2a/2b and PUCCH 1/1a/1b, and dividing frequency resource is for the RB transmission of PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.When start as each FDD cell allocation frequency resource from these uplink band two ends, last dividing frequency resource FDD community, apart from the adjacent frequency resource allocation FDD community of frequency for transmitting PUSCH transmission.
The RB that mix to PUCCH 1/1a/1b and PUCCH 2/2a/2b in the frequency resource allocation that approaches most PUSCH base station, for saving resource expense, also, for the form of the physical uplink control channel of same standard is close, is convenient to process.
Step 203, transmit remaining frequency resource base station for Physical Uplink Shared Channel (PUSCH).
The content that the application indicates by signaling, compare and increased signaling with existing standard, indicate PUCCH 1/1a/1b and the PUCCH 2/2a/2b of multiple communities, and the RB that indicates PUCCH 1/1a/1b and PUCCH 2/2a/2b to mix in the nearest FDD community, frequency center apart from this uplink band.
Therefore in the specific embodiment of the invention, share the upload control resource of this ascending control channel Ge community by differentiation, distinguish the ascending control channel of each community, avoided different FDD community to share the collision problem of this ascending control channel.
Taking N as 2, when Liang Ge FDD community shares a uplink band, frequency resource allocation is example, describes in detail and how to realize physical uplink control channel resource allocation methods below.Referring to Fig. 3, Fig. 3 is physical uplink control channel resource allocation structure schematic diagram in the specific embodiment of the invention.
As seen from Figure 3, start from the two ends of this uplink band as community 1 dividing frequency resource, for cell allocation is for transmitting the frequency resource of PUCCH2/2a/2b and PUCCH 1/1a/1b, and first distribute the resource of transmission PUCCH 2/2a/2b, the resource of rear distribution transmission PUCCH 1/1a/1b, in the symmetrical distribution that is of this upstream band.After 1 distribution of WeiFDD community finishes, WeiFDD community 2 is distributed, distribute the mode TongFDD community 1 of PUCCH 2/2a/2b and PUCCH 1/1a/1b, because FDD community 2 is nearest apart from the centre frequency of this uplink band, therefore between PUCCH2/2a/2b and PUCCH 1/1a/1b, divide the frequency resource of the RB that is used in transmission PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
Inventive concept based on same in the specific embodiment of the invention, also proposes a kind of base station, can be applicable in the LTE network of same uplink band and the pairing of different band downlinks.Referring to Fig. 4, Fig. 4 is the structural representation that is applied to the base station of above-mentioned technology in the specific embodiment of the invention.This base station comprises: dispensing unit 401 and allocation units 402.
Dispensing unit 401, while pairing with N band downlink for configuring arbitrary described uplink band, the resource of this uplink band is shared by N N GeFDD community corresponding to band downlink.
Allocation units 402, for the two ends of the uplink band that configures from dispensing unit 401, for this N GeFDD community dividing frequency resource successively, for PUCCH 2/2a/2b and PUCCH 1/1a/1b transmission, and remaining frequency resource is transmitted for PUSCH, wherein, for PUCCH 2/2a/2b and the PUCCH1/1a/1b of each FDD cell allocation are symmetrical at the two ends of this uplink band.
Preferably,
Allocation units 402, are further used for being last dividing frequency resource FDD community, distribute between PUCCH2/2a/2b and PUCCH 1/1a/1b, dividing frequency resource is for the RB transmission of PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
The unit of above-described embodiment can be integrated in one, and also can separate deployment; Can merge into a unit, also can further split into multiple subelements.
In sum, in the specific embodiment of the invention, the two ends of the shared uplink band in Cong Ge FDD community, base station start, for this N GeFDD community dividing frequency resource successively, for PUCCH 2/2a/2b and PUCCH1/1a/1b transmission, and remaining frequency resource is transmitted for PUSCH.By distinguishing the upload control resource that shares this ascending control channel Ge community, distinguish the ascending control channel of each community, can avoid the collision problem of multiple FDD community in the time using same ascending control channel.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (4)
1. a physical uplink control channel PUCCH resource allocation methods, be applied on the base station in the Long Term Evolution LTE network of same uplink band and the pairing of different band downlinks, it is characterized in that, in the time that arbitrary described uplink band matches with N band downlink, the resource of this uplink band is shared by N N FDD community corresponding to band downlink, comprising:
From the two ends of this uplink band, for this N GeFDD community dividing frequency resource successively, for PUCCH2/2a/2b and PUCCH 1/1a/1b transmission, and remaining frequency resource is transmitted for Physical Uplink Shared Channel PUSCH, wherein, for PUCCH 2/2a/2b and the PUCCH 1/1a/1b of each FDD cell allocation are symmetrical at the two ends of this uplink band.
2. method according to claim 1, is characterized in that, described method further comprises:
In the community that is last dividing frequency resource, to distribute between PUCCH 2/2a/2b and PUCCH 1/1a/1b, dividing frequency resource is for the Resource Block RB transmission of PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
3. a base station, can be applicable to, in the Long Term Evolution LTE network of same uplink band and the pairing of different band downlinks, it is characterized in that, this base station comprises: dispensing unit and allocation units;
Described dispensing unit, while pairing with N band downlink for configuring arbitrary described uplink band, the resource of this uplink band is shared by N N FDD community corresponding to band downlink;
Described allocation units, for from the two ends of the uplink band of described dispensing unit configuration, for this N GeFDD community dividing frequency resource successively, for physical uplink control channel PUCCH 2/2a/2b and PUCCH 1/1a/1b transmission, and remaining frequency resource is transmitted for Physical Uplink Shared Channel PUSCH, wherein, for PUCCH 2/2a/2b and the PUCCH 1/1a/1b of each FDD cell allocation are symmetrical at the two ends of this uplink band.
4. base station according to claim 3, is characterized in that,
Described allocation units, are further used for being last dividing frequency resource FDD community, distribute between PUCCH2/2a/2b and PUCCH 1/1a/1b, dividing frequency resource is for the RB transmission of PUCCH 1/1a/1b and PUCCH 2/2a/2b mixing.
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| 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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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| 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 |
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