CN101568121B - Method for realizing district partitions - Google Patents
Method for realizing district partitions Download PDFInfo
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- CN101568121B CN101568121B CN200810093971XA CN200810093971A CN101568121B CN 101568121 B CN101568121 B CN 101568121B CN 200810093971X A CN200810093971X A CN 200810093971XA CN 200810093971 A CN200810093971 A CN 200810093971A CN 101568121 B CN101568121 B CN 101568121B
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Abstract
The invention provides a method for realizing district partitions. One district comprises a first number group of antennae, the coverage area of each group of antennae is defined as a district partition, each group of antennae comprises a second number group of antennae, wherein the first number is larger than 1 and the second number is larger than or equal to 1. According to the method for realizing district partitions, the application scene of intelligent antennae can be increased, and the method can effectively solve the problems of networking and covering in a complex scene.
Description
Technical field
The present invention relates to wireless communication technique, particularly a kind of method that realizes cell portion.
Background technology
Mode of frequency division duplexing (Frequency Division Duplex, FDD) performance and the application scenario in order to promote smart antenna, cell portion (Cell Portion has been proposed, CP) notion, cell portion is a semi-static geographic area of sub-district, differentiating uplink and downlink not, base station (Node B) can be to radio network controller (Radio Network Controller, RNC) report this regional measurement result, cell portion ID can identify a cell portion uniquely in a sub-district, can (3rdGeneration Partnership Project, 3GPP) agreement 25.887R6 version be about the definition of cell portion with reference to third generation partner program.
Fig. 1 realizes the scene schematic diagram of cell portion down for fdd mode.As shown in Figure 1, in this implementation, disposed 4 cell portions in the sub-district, i.e. CP1, CP2, CP3 and CP4, each CP cover the scopes of about 20 degree.These 4 cell portions are shared one group of smart antenna of being made up of 8 antennas.In order to realize the cell portion function, RNC need be secondary common pilot channel (the Secondary Common Pilot Channel of a special use of each cell portion configuration, SCPICH), Node B feeds back the position that detected SCPICH channel is known the cell portion at UE place by UE.
(Time Division Duplex TDD) under the pattern is exactly certain wave beam angle of arrival (Angle of Arrival, AoA) overlay area in the angular range of smart antenna to the undefined cell portion of fdd mode at time division duplex.At present, the 3GPP agreement is not also replenished the application of cell portion under the tdd mode.
Under tdd mode, the precision that smart antenna is measured under nothing is blocked situation is very high, and still, in the city or indoor, because the existence of reflection, multipath, the measurement result of AoA can not truly reflect UE place direction, sometimes or even antipodal result.Therefore, FDD can't be applied in the tdd mode about the prior art of cell portion among the 3GPP.For improving the application of smart antenna, need to replenish and adjust the implementation method of cell portion under the tdd mode.
Summary of the invention
The objective of the invention is to, a kind of method that realizes cell portion under tdd mode is provided.
The method of realization cell portion of the present invention wherein, comprises the first number group antenna in the sub-district, the coverage of every group of antenna is defined as a cell portion, comprises the second number root antenna in described every group of antenna; Wherein, described first number is greater than 1; Described second number is more than or equal to 1.
Wherein, described each cell portion is supported identical frequency set, and the sign indicating number resource is shared between described cell portion, and common signal channel takies identical sign indicating number resource with shared channel in all cell portions.
Wherein, when the isolation of cell portion reaches pre-provisioning request, be that user in the different cell portion distributes identical High-Speed Physical Downlink Shared Channel HS-PDSCH channel by Node B.
Described pre-provisioning request is that the interference of same physical channel between different cell portions is when being left in the basket.
In addition, the described first number size depends on actual covering demand.
Wherein, cover blind spot and need mend blind or overlay area when existing the hot spot region to need concurrent heating when the indoor covering of the high customer volume of needs or overlay area exist, described first number is big; Otherwise described first number is little.
In addition, the described second number size depends on the demand of actual covering scene and/or overlay area size and/or telephone traffic.
Wherein, covering scene short for transmission range, that concentrate the overlay area, power is lower or telephone traffic hour are used single or the cell portion of root antenna less; Use the cell portion of many antennas when covering scene big for coverage, that transmission range is far away or telephone traffic are big.
The method of realization cell portion of the present invention is applicable to FDD pattern and TDD pattern.
The invention has the beneficial effects as follows: according to the method that under tdd mode, realizes cell portion of the present invention, can improve the application scenarios of smart antenna, and effectively solve networking and covering problem, especially dense city under the complex scene, indoor and mend the application scenarios of blind concurrent heating; In addition, this method does not need to revise the consensus standard of wave point, only needs RNC and Node B cooperation can finish the distribution of cell portion resource; And, needing in the prior art can also avoid UE to carry out channel estimating and feed back the shortcoming that the place cell portion is given NodeB again.
Description of drawings
Fig. 1 realizes the scene schematic diagram of cell portion down for fdd mode;
Fig. 2 is the scene schematic diagram that the tdd mode of the embodiment of the invention is realized cell portion down.
Embodiment
Below, be described in detail with reference to the attached drawings the method for realization cell portion of the present invention.
Core concept of the present invention is: by Node B the antenna of a sub-district is divided into some groups, wherein the overlay area of each group antenna constitutes a cell portion, each cell portion ID has identified a cell portion uniquely, the sign indicating number resource is shared between cell portion, and power resource is shared in cell portion.
Below, system is an example with TD SDMA (TD-SCDMA), and the technical solution adopted in the present invention is described in further detail.
By Node B a sub-district is divided into n group antenna, the coverage of every group of antenna is defined as a cell portion CP.Wherein, antenna sets is counted n greater than 1, if when antenna sets is counted n=1, is common TDD smart antenna solutions based on the implementation of cell portion.In addition, every group of antenna comprises m root antenna, and wherein, antenna radical m is more than or equal to 1.
Wherein, adopt a plurality of antenna sets (being the size that antenna sets is counted n) to cover and to depend on actual covering demand.When scene more complicated that needs cover, for example outdoor and indoor mixing covers, the indoor covering of high customer volume, and it is blind that the overlay area exists the covering blind spot to mend, and when the overlay area exists the hot spot region to need concurrent heating, can adopt the coverage mode of a plurality of antenna sets.
In addition, how many root antennas each cell portion need adopt depend on the demand of covering scene, overlay area size and telephone traffic.For example, indoor covering is general because transmission range is short, concentrate the overlay area, power is lower, uses the CP of single antenna to get final product, and a CP can cover one or more layers.In the shopping mall, use the CP of a plurality of single antenna to cover because telephone traffic is big with first floor.Outdoor because coverage is bigger, transmission range is far away, generally uses the CP of many antennas, to make full use of the effect of smart antenna.
Whether in addition, different cell portions distribute identical resource to depend on actual channel type, algorithm etc. for different users.
For example, when dedicated physical channels allocated (Dedicated Physical Channel, DPCH) during resource, same user occupies the same code resource of all CP, the different districts subregion can not distribute identical sign indicating number resource for different users; For high speed downlink packet access technology (High Speed Downlink Packet Access, HSDPA) and high speed uplink packet insert (High Speed Uplink Packet Access, HSUPA) employed physical channel resources, because resource is distributed by Node B, depend on that therefore the algorithm of Node B is realized.
For example, when the isolation of CP reaches certain requirement (for example 20dB), be that same physical channel disturbs in the time of can ignoring between different CP, Node B distributes identical High-Speed Physical Downlink Shared Channel (High Speed Physical Downlink Shared Channel can for the user among the different CP, HS-PDSCH), this method can not revised node B application part (Node B Application Part, NBAP), Radio Resource control (Radio Resource Control, RRC) downlink throughput capacity of increase HSDPA under the prerequisite of agreement.Wherein HSUPA and HSPA+ principle are similar with HSDPA.
As shown in Figure 2, for realizing the scene schematic diagram of cell portion under the tdd mode of the present invention, this scene is the mixing covering scene of indoor and outdoors, has 4 adjacent area A1, A2, A3 and A4 to need to cover under this scene.Wherein A1, A2 and A3 are room area, and A4 is an outdoor area.
With reference to figure 2, tdd mode of the present invention is realized the method for cell portion down, comprises the following steps:
Step 201: adopt corresponding radical antenna to carry out the sub-district covering according to coverage and telephone traffic;
For example, adopt the sub-district of one 8 antenna 3 carrier waves to cover, wherein, the frequency of 3 carrier waves is: F1, F2 and F3.
Step 202: on Node B, home cell is carried out corresponding configuration, comprise, antenna radical in antenna sets number, the every group of antenna etc.
For example, configuration antenna sets number is 3, and every group of corresponding cell portion of antenna promptly disposed 3 cell portions in this sub-district, and wherein: antenna 1 independently is one group, corresponding CP1, and the overlay area is A1 and A2; Antenna 2 independently is one group, corresponding CP2, and the overlay area is A3; Antenna 3,4,5,6,7 and 8 is one group, corresponding CP3, and the overlay area is A4.
Step 203: (promptly frequency F1, F2 and F3 carry out the resource audit to radio network controller then, and finish the sub-district and set up for Radio Network Controller, RNC) the corresponding frequency of configuration in the sub-district.
Wherein, step 203 is a prior art, and the present invention is not described in detail.
In addition, according to aforesaid cell portion method, when calling out and in the sub-district, switch between the cell portion, may further comprise the steps:
Step 301:UE carries out 12.2K and calls out in the CP1 of sub-district; RNC distributes physical channel resources to UE, and ascending time slot (Timeslot, TS) in 2, CC16/1, CC16/2; Among the descending TS5, CC16/1, CC16/2;
Wherein: CC16/1 refers to that (Spread Factor SF) is 16 the 1st physical channel to spreading factor, and CC16/2 refers to that SF is 16 the 2nd physical channel.
Step 302:Node B detects UE behind CP1, and it is mutual to use TS2:CC16/1, CC16/2 and TS5:CC16/1, CC16/2 and UE to carry out physical layer in CP1;
Step 303:UE moves CP2 from CP1, and Node B detects UE behind CP2, and it is mutual to use TS2:CC16/1, CC16/2 and TS5:CC16/1, CC16/2 and UE to carry out physical layer in CP2;
Step 304:UE moves CP4 from CP2, and Node B detects UE behind CP4, and it is mutual to use TS2:CC16/1, CC16/2 and TS5:CC16/1, CC16/2 and UE to carry out physical layer in CP4;
Step 305:UE call release.
Need to prove, more than only tdd mode is realized that down the method for cell portion illustrates, but the present invention is not limited thereto, can also be applicable to fdd mode.
In sum,, improved the application scenarios of smart antenna, can effectively solve networking and covering problem, especially dense city under the complex scene, indoor and mend the application scenarios of blind concurrent heating according to the method for realization cell portion of the present invention; In addition, this method does not need to revise the consensus standard of wave point, only needs RNC and Node B cooperation can finish the distribution of cell portion resource; And, needing in the prior art can also avoid UE to carry out channel estimating and feed back the shortcoming that the place cell portion is given Node B again.
More than be in order to make those of ordinary skills understand the present invention; and to detailed description that the present invention carried out; but can expect; in the scope that does not break away from claim of the present invention and contained, can also make other variation and modification, these variations and revising all in protection scope of the present invention.
Claims (8)
1. a method that realizes cell portion is characterized in that, comprises the first number group antenna in the sub-district, and the coverage of every group of antenna is defined as a cell portion, comprises the second number root antenna in described every group of antenna; Wherein, described first number is greater than 1; Described second number is more than or equal to 1; Wherein, described each cell portion is supported identical frequency set, and the sign indicating number resource is shared between described cell portion, and common signal channel takies identical sign indicating number resource with shared channel in all cell portions.
2. the method for realization cell portion as claimed in claim 1, it is characterized in that, when the isolation of cell portion reaches pre-provisioning request, be that user in the different cell portion distributes identical High-Speed Physical Downlink Shared Channel HS-PDSCH channel or high speed ascending grouped access channel HSUPA channel or HSPA+ channel by Node B.
3. the method for realization cell portion as claimed in claim 2 is characterized in that, described pre-provisioning request is that the interference of same physical channel between different cell portions is when being left in the basket.
4. the method for realization cell portion as claimed in claim 1 is characterized in that, the described first number size depends on actual covering demand.
5. the method for realization cell portion as claimed in claim 4, it is characterized in that, cover blind spot and need mend blind or overlay area when existing the hot spot region to need concurrent heating when the indoor covering of the high customer volume of needs or overlay area exist, described first number is big; Otherwise described first number is little.
6. the method for realization cell portion as claimed in claim 1 is characterized in that, the described second number size depends on the demand of actual covering scene and/or overlay area size and/or telephone traffic.
7. the method for realization cell portion as claimed in claim 6 is characterized in that, covering scene short for transmission range, that concentrate the overlay area, power is lower or telephone traffic hour are used single or the cell portion of root antenna less; Use the cell portion of many antennas when covering scene big for coverage, that transmission range is far away or telephone traffic are big.
8. the method for realization cell portion as claimed in claim 1 is characterized in that, is applicable to FDD pattern and TDD pattern.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200810093971XA CN101568121B (en) | 2008-04-24 | 2008-04-24 | Method for realizing district partitions |
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| CN200810093971XA CN101568121B (en) | 2008-04-24 | 2008-04-24 | Method for realizing district partitions |
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| CN101568121A CN101568121A (en) | 2009-10-28 |
| CN101568121B true CN101568121B (en) | 2011-11-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102075957B (en) * | 2009-11-24 | 2013-09-11 | 中兴通讯股份有限公司 | Neighbor cell processing method and device for cell |
| CN102638898A (en) * | 2011-02-11 | 2012-08-15 | 中兴通讯股份有限公司 | Centralized-type wired port data transmission method and system based on coordinated multiple points |
| CN102651910A (en) * | 2011-02-24 | 2012-08-29 | 华为技术有限公司 | Method and device for managing user equipment |
| CN107211290B (en) * | 2015-08-31 | 2020-04-03 | 华为技术有限公司 | Method and device for sending data |
| CN107708136B (en) * | 2017-09-20 | 2020-12-15 | 北京市天元网络技术股份有限公司 | High-speed rail cell identification method and device |
Citations (2)
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|---|---|---|---|---|
| CN1345133A (en) * | 1994-01-11 | 2002-04-17 | 艾利森公司 | Channelling-improved cellular/satellite communication system |
| US20070049324A1 (en) * | 2005-08-26 | 2007-03-01 | Qualcomm Incorporated | Fast cell selection in TD-CDMA (UMTS TDD) |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1345133A (en) * | 1994-01-11 | 2002-04-17 | 艾利森公司 | Channelling-improved cellular/satellite communication system |
| US20070049324A1 (en) * | 2005-08-26 | 2007-03-01 | Qualcomm Incorporated | Fast cell selection in TD-CDMA (UMTS TDD) |
Non-Patent Citations (1)
| Title |
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| 段敏.《TD-SCDMA频率规划和组网模式浅谈》.电信科学.2006,(12),70-72. * |
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