CN100369501C - Personal handset system base station and method for realizing multi-control channel - Google Patents
Personal handset system base station and method for realizing multi-control channel Download PDFInfo
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- CN100369501C CN100369501C CNB2004100775478A CN200410077547A CN100369501C CN 100369501 C CN100369501 C CN 100369501C CN B2004100775478 A CNB2004100775478 A CN B2004100775478A CN 200410077547 A CN200410077547 A CN 200410077547A CN 100369501 C CN100369501 C CN 100369501C
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Abstract
The present invention relates to a base station of a personal handset system and a method for realizing multiple control channels. In the system which comprises a plurality of modems, corresponding transceivers of one or a plurality of modem systems are combined into a virtual logic sub base station, one of the logic sub base stations is arranged as a main sub base station, and each of the logic sub base stations has a corresponding antenna feed system. The selection of a control time slot is completed by the main sub base station firstly, the own control time slots of the other logic sub base stations are selected respectively, and the other logic sub base stations are relatively independent in the processes of the selection of the control time slots; a logic control channel signal is transmitted by each of the logic sub base stations according to the own independent method completely, and the channel allocation resource of the call requests from the control channel of each of the logic sub base stations is limited by the resource controlled by the logic sub base station. The present invention has the advantages that single-point coverage is changed into multi-point coverage, and the coverage to different regions is realized by adopting different antenna feed systems according to practical situation; thereby, the effective coverage is ensured, and the channel resource is fully utilized.
Description
Technical field
The present invention relates to the base station in the PHS system, relate in particular to the base station of a plurality of modem systems.
Background technology
At present PHS system (Personal Handyphone System personal hand held phone system, the domestic wireless local telephone system that claims again) is increasingly mature, the Personal Handyphone System(PHS) total number of users of China nearly 6,000 ten thousand, and with sustainable growth.For surge and the reduction user cost that adapts to user's telephone traffic, the multi channel high-power base station of many employings in the network system, and generally there is a plurality of MODEM (modulator-demodulator) system this class base station.
Because PHS standard microcellulor, current networking is difficult to accomplish the complete covering of the whole network All Ranges, and user's call performance and speech quality have been brought certain influence.Along with user group's the increase and the raising of user quality requirement, an urgent demand operator carries out complete covering to all coverage holes.But the telephone traffic of this part zone (as escalator, stair-corridor, Administrative Area etc.) is smaller usually, and point is many, if use existing base station to realize covering fully, certainly will cause the idle and higher construction cost of more resource.
Summary of the invention
One of purpose of the present invention is to propose a kind of new PHS base station, and existing base station is improved, and realizes that the interior effective covering of multiple spot in base station can guarantee make full use of (the low traffic zone multiple spot covering function) of channel resource again on a large scale.
Two of purpose of the present invention is to realize multi-control channel with new base station.
A kind of new PHS base station that the present invention proposes comprises a plurality of modem systems, and the transceiver of one of them or several modulation demodulation system correspondences is combined into a virtual logical sub base station; One that sets in the logical sub base station be the boss base station, and the Base Station Identification number of PHS system assignment is used in the boss base station, and the part BIT position in Base Station Identifications of other original distribution of subbase stations change PHS systems number forms new Base Station Identification number.
In above-mentioned base station, all there is corresponding antenna-feedback system each logical sub base station; The antenna-feedback system of each logical sub base station can all be taked omnidirectional antenna according to field condition, or whole directional antenna, or part adopts omnidirectional antenna partly to adopt directional antenna.
The method of realization multi-control channel is in above-mentioned PHS system base-station, and the selection of control time slot is at first finished in the boss base station, and other logical sub base station is selected the control time slot of oneself respectively then, and is relatively independent in selection course; Each logical sub base station fully according to oneself independently mode send the logical control channel signal; Be limited to the resource that inherent logic subbase station is controlled from the channel allocation resource bureau of the next call request of each logical sub base stations control channel.
The present invention splits into several logical sub base station with a physical base station, becomes single-point and is covered as the multiple spot covering, can solve the great puzzlement of the network coverage.In actual application, in the light of actual conditions adopt different antenna-feedback systems that zones of different is realized covering.Guaranteed that promptly effective covering has made full use of channel resource again, the construction and development of PHS network have been had very positive meaning.
Description of drawings
Fig. 1 is a kind of PHS network diagram of the invention process;
Fig. 2 is that two districts adopt different base station signal coverage varies figure;
Fig. 3 is single control channel PHS architecture of base station figure that two MODEM systems are arranged in the prior art;
Fig. 4 is the structure chart that the single channel base station of Fig. 3 is made into two control channel PHS base stations.
Embodiment
Figure 1 shows that a kind of PHS network diagram of the invention process.The PHS system comprises the PHS IAD, a plurality of base station controllers, and each base station controller is controlled a plurality of base stations.
Fig. 2 is that two districts adopt different base station signal coverage varies figure.A district and B district were coverage hole before installed the base station, and adopting single control channel base station to cover needs X and Y two stylobate stations, and covering behind employing one embodiment of the present of invention two control channel base stations only needs Z one stylobate station.
Fig. 3 is single control channel PHS architecture of base station figure that two MODEM systems are arranged in the prior art; Fig. 4 is the structure chart that the single channel base station of Fig. 3 is made into two control channel PHS base stations, promptly will have the single physical base station now according to the solution of the present invention and repack a plurality of logical sub base station into, thereby realize low traffic zone multiple spot is covered.1# transceiver among Fig. 3 and Fig. 4,2# transceiver, 3# transceiver and 4# transceiver refer to each R-T unit and antenna-feedback system thereof respectively.
(1) logical partitioning of a plurality of virtual subnet base station
In the PHS base station that a plurality of MODEM system is arranged, the transceiver of one or more MODEM correspondence can be combined into a virtual logical sub base station.In the embodiment shown in fig. 4, two MODEM systems of MODEM A and MODEM B are arranged in the base station, then the transmitting and receiving system of MODEM A correspondence can be combined into logical sub base station SubA, and the transmitting and receiving system of MODEM B correspondence is combined into logical sub base station SubB.Select one of them subbase station SubA to be the boss base station, the boss base station uses the part BIT position among the PHS CSID of system to form new CSID.
(2) selection strategy of many control time slots
In the multi-control channel base station, the selection of control time slot is at first finished in the boss base station, and other logical sub base station is selected the control time slot of oneself respectively then, and is relatively independent in selection course.
(3) LCCH (logical control channel) of many control time slots sends strategy
In the multi-control channel base station because the CSID of each logical sub base station sign is different, so each logical sub base station fully according to oneself independently mode send LCCH.
(4) multi-control channel base station call resources allocation strategy
In the multi-control channel base station, the channel allocation resource bureau of the call request from each logical sub base stations control channel is limited to the resource that inherent logic subbase station is controlled.As call request to coming on the logic boss base station, channel resource that can only assignment logic boss base station MODEM correspondence, and can not distribute the channel resource of other logical sub base station MODEM correspondence.
(5) the multi-control channel base station antenna feeder system is selected
The multi-control channel base station antenna feeder system is selected to refer to how to carry out antenna-feedback system and is selected to guarantee the maximum efficient of multi-control channel performance.The antenna-feedback system that adopt each logical sub base station, multi-control channel base station is more flexible, and selection mode depends on The field.Can all adopt omnidirectional antenna to realize the covering of specific region, also can under some particular surroundingss, realize the covering of specific region by whole directional antennas, can also adopt directed and omnidirectional antenna hybrid mode (omnidirectional antenna is adopted in some logical sub base station, and directional antenna is adopted in other logical sub base station).
Practical value for better performance multi-control channel base station, need take certain strategy that the antenna-feedback system of logical sub base station correspondence is installed in same overlay area in project installation, the feature according to the actual coverage area territory adopts different antenna-feedback systems simultaneously.
Claims (5)
1. a personal handset system base station comprises a plurality of modem systems, it is characterized in that, the transceiver of one of them or several modem system correspondences is combined into virtual logical sub base station; One that sets in the described logical sub base station is the boss base station, Base Station Identification that personal hand held phone system distributes number is used in the boss base station, and the partial bit position in the original Base Station Identification that distributes of other subbase stations change personal hand held phone systems number forms new Base Station Identification number.
2. the described personal handset system base station of claim 1 is characterized in that, all there is corresponding antenna-feedback system each logical sub base station.
3. the described personal handset system base station of claim 2 is characterized in that, the antenna-feedback system of each logical sub base station is all taked omnidirectional antenna, or whole directional antenna, or part adopts omnidirectional antenna partly to adopt directional antenna.
4. the described personal handset system base station of claim 3 is characterized in that, the antenna-feedback system of each logical sub base station correspondence is installed in same overlay area.
5. method that in the described personal handset system base station of the arbitrary claim of claim 1 to 4, realizes multi-control channel, it is characterized in that, the selection of control time slot is at first finished in the boss base station, and other logical sub base station is selected the control time slot of oneself respectively then; Each logical sub base station fully according to oneself independently mode send the logical control channel signal; Be limited to the resource that inherent logic subbase station is controlled from the channel allocation resource bureau of the next call request of each logical sub base stations control channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100775478A CN100369501C (en) | 2004-12-17 | 2004-12-17 | Personal handset system base station and method for realizing multi-control channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100775478A CN100369501C (en) | 2004-12-17 | 2004-12-17 | Personal handset system base station and method for realizing multi-control channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1791240A CN1791240A (en) | 2006-06-21 |
| CN100369501C true CN100369501C (en) | 2008-02-13 |
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| CNB2004100775478A Expired - Fee Related CN100369501C (en) | 2004-12-17 | 2004-12-17 | Personal handset system base station and method for realizing multi-control channel |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000152308A (en) * | 1998-11-16 | 2000-05-30 | Japan Radio Co Ltd | Mobile communication system |
| CN1325219A (en) * | 2000-08-29 | 2001-12-05 | 深圳市中兴通讯股份有限公司 | First-layer protocol realizing device and method for personal hand-held communication system |
| JP2002016955A (en) * | 2000-06-28 | 2002-01-18 | Nec Commun Syst Ltd | Mobile communication system and method for utilizing multiple frequencies in radio base station for use therein |
| CN1356840A (en) * | 2000-12-06 | 2002-07-03 | 深圳市中兴通讯股份有限公司 | Method fyor dynamic remote downloading of small base station program in public handheld telephone system |
| CN1381964A (en) * | 1997-05-30 | 2002-11-27 | 松下电器产业株式会社 | Fixed user unit for telecommunication |
| WO2003049485A1 (en) * | 2001-12-06 | 2003-06-12 | Telefonaktiebolaget L M Ericsson (Publ) | A method and arrangement for allocation the quantity of a channel to a mobile station as a function of the measured quality |
-
2004
- 2004-12-17 CN CNB2004100775478A patent/CN100369501C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1381964A (en) * | 1997-05-30 | 2002-11-27 | 松下电器产业株式会社 | Fixed user unit for telecommunication |
| JP2000152308A (en) * | 1998-11-16 | 2000-05-30 | Japan Radio Co Ltd | Mobile communication system |
| JP2002016955A (en) * | 2000-06-28 | 2002-01-18 | Nec Commun Syst Ltd | Mobile communication system and method for utilizing multiple frequencies in radio base station for use therein |
| CN1325219A (en) * | 2000-08-29 | 2001-12-05 | 深圳市中兴通讯股份有限公司 | First-layer protocol realizing device and method for personal hand-held communication system |
| CN1356840A (en) * | 2000-12-06 | 2002-07-03 | 深圳市中兴通讯股份有限公司 | Method fyor dynamic remote downloading of small base station program in public handheld telephone system |
| WO2003049485A1 (en) * | 2001-12-06 | 2003-06-12 | Telefonaktiebolaget L M Ericsson (Publ) | A method and arrangement for allocation the quantity of a channel to a mobile station as a function of the measured quality |
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| CN1791240A (en) | 2006-06-21 |
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