CN101715195B - Method for establishing multi-carrier-frequency indoor base stations - Google Patents
Method for establishing multi-carrier-frequency indoor base stations Download PDFInfo
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- CN101715195B CN101715195B CN200810200806XA CN200810200806A CN101715195B CN 101715195 B CN101715195 B CN 101715195B CN 200810200806X A CN200810200806X A CN 200810200806XA CN 200810200806 A CN200810200806 A CN 200810200806A CN 101715195 B CN101715195 B CN 101715195B
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- 238000013508 migration Methods 0.000 claims abstract description 9
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- 239000000284 extract Substances 0.000 claims description 10
- 238000013475 authorization Methods 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 4
- 230000001960 triggered effect Effects 0.000 claims description 4
- 238000010295 mobile communication Methods 0.000 abstract description 8
- 230000005540 biological transmission Effects 0.000 abstract description 2
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- 238000005516 engineering process Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 238000013439 planning Methods 0.000 description 2
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Abstract
The invention relates to a method for establishing indoor base stations in a third-generation mobile communication system. The method comprises the following steps that: an indoor base station selects at least one carrier frequency as a traction carrier frequency from a plurality of carrier frequencies; the indoor base station takes a non-traction carrier frequency in the carrier frequencies as a service carrier frequency; the indoor base station constructs a traction cell on the traction carrier frequency and then performs migration management on mobile terminal users entering/leaving signal coverage areas of the indoor base station through the traction cell; and the indoor base station constructs a service cell on the service carrier frequency and then provides communication service for authorized mobile terminal users through the service carrier frequency. The indoor base station comprehensively solves the problem of restrictions on access modes as well as indoor environment coverage and capacity, and the mobile terminal users can separately enjoy wireless and wired transmission resources indoors so as to obtain mobile broadband multimedia business services.
Description
Technical field
The invention belongs to moving communicating field, relate in particular to a kind of method of in the 3G (Third Generation) Moblie system, setting up indoor base station.
Background technology
According to statistics, 70% of the telephone traffic of mobile communication subscriber occurs in indoor environment, so mobile communication signal is most important for satisfied communication service is provided for mobile communication subscriber at the covering quality of indoor distributed system.Especially in 3G (Third Generation) Moblie (3G) system; Owing to be operated in higher frequency, receive the restriction of nature of radio propagation, a little less than the penetration capacity of signal; Space loss is big; Add the 3G system the multifarious service that bandwidth is had higher requirements will be provided, so relative 2G system, 3G has higher requirement to the indoor covering of signal.
From solving covering, capacity, these three network plannings of quality and optimizing angle analysis, indoor distributed system has different effects.From the network coverage, indoor distributed system can solve indoor blind area and interference region; From network capacity, indoor distributed system is the extension and the expansion of outdoor macro base station signal, promptly will take the Radio Resource of former mobile communication base station; From network quality, indoor covering has reduced the load of outdoor system, and the planning of indoor distributed system also is very important, plans that bad then mutual interference can influence the signal quality of network.
Present indoor soverlay technique is come out by the application development of 2G network mostly; For example radio frequency remote technology, repeater technology etc. respectively have pluses and minuses, also can solve the part practical problem; But the problem that ubiquity cost of investment and management cost are high; And only solved indoor covering, and not comparatively satisfactory technical scheme, problem that indoor signal covers and mobile subscriber have become the application of 3G system and universal key to the demand of broadband services.
Summary of the invention
For solving above-mentioned existing technical problem; The purpose of this invention is to provide a kind of method; Set up a kind of like this indoor base station: this indoor base station is with less system resource and cost, and the indoor covering of satisfactory solution 3G GSM signal and mobile subscriber are to the demand of wireless high-speed, broadband data service.
For realizing above-mentioned purpose, the present invention provides a kind of method for building up of multi-carrier-frequency indoor base stations, it is characterized in that, said method comprising the steps of:
Said indoor base station is chosen at least one carrier frequency as the traction carrier frequency in a plurality of carrier frequency;
Said indoor base station with the non-traction carrier frequency in described a plurality of carrier frequency as business carrier frequency;
Said indoor base station is constructed the traction sub-district on said traction carrier frequency, through said traction sub-district the mobile phone users that passes in and out said leaving signal coverage areas is carried out migration management then;
Said indoor base station is constructed service district on said business carrier frequency, to the mobile phone users of obtaining the authorization communication service is provided through said service district then.
Optional, said indoor base station sends the broadcast and the down-bound pilot frequency signal of traction sub-district on said traction sub-district;
Said indoor base station sends the broadcast and the down-bound pilot frequency signal of service district on said service district.
Optional, said indoor base station is operated in terminal pattern, receives the signal of self-position peripheral base station, measures the signal power of peripheral base station, receives the broadcast on the broadcast channel, obtains adjacent sub-district with tabulation and alien frequencies tabulation frequently.
Optional, said indoor base station is tabulated with tabulation frequently and alien frequencies according to the described adjacent sub-district that obtains and the signal power of the said peripheral base station that records is chosen described traction carrier frequency and cell ID.
Optional, said indoor base station is included on the said traction sub-district the migration management of the mobile phone users that passes in and out said leaving signal coverage areas through said traction sub-district mobile phone users is carried out authentication.
Optional; Said indoor base station is meant the mobile phone users to obtaining the authorization through said traction sub-district to the migration management of the mobile phone users that passes in and out said leaving signal coverage areas; Said indoor base station is moved to self base station with its base station from other; To the mobile phone users of not obtaining the authorization, said indoor base station is repatriated go back to former base station with it.
Optional, said indoor base station sends the broadcast of drawing the sub-district to be less than or equal to the indoor base station rated output power on said traction sub-district.
Optional, said indoor base station on said service district to be less than or equal to the broadcast that the indoor base station rated output power sends service district.
Optional, said indoor base station is set synchronizing signal.
Optional, comprise that also said indoor base station receives and extract the synchronizing signal of self-position peripheral base station.
Optional, said indoor base station receives and extracts the synchronizing signal of self-position peripheral base station with the mode of timing triggering or Event triggered.
Optional, comprise that also said indoor base station carries out preferably in the synchronizing signal of more than one self-position peripheral base station.
Optional, said indoor base station receives the descending pilot frequency from self-position peripheral base station synchronisation source on said traction carrier frequency or said business carrier frequency time slot corresponding, extract synchronizing signal and reference clock that synchronizing signal is calibrated said indoor base station.
Optional, comprise that also said indoor base station is to produce synchronizing signal as synchronisation source certainly.
Optional, said indoor base station is constructed the system message of said traction sub-district and said service district voluntarily.
Optional, said indoor base station is participated in the system message of structure said traction sub-district and said service district by external equipment.
Optional, said indoor base station comprises gateway device by the said external equipment in the system message of external equipment participation structure said traction sub-district and said service district.
Optional, said method comprises following sequential steps:
Step 1, said indoor base station work in terminal pattern, measure the signal of self-position peripheral base station and receive broadcast, obtain adjacent sub-district with tabulation and shift frequency tabulation frequently;
Step 2, said indoor base station are chosen traction carrier frequency and business carrier frequency, structure traction sub-district and service district;
Step 3, said indoor base station are confirmed synchronisation source, extract synchronizing signal, produce the synchronizing signal of indoor base station;
Step 4, said indoor base station convert base station mode into, on the traction carrier frequency, send the broadcast and the down-bound pilot frequency signal of traction sub-district, on business carrier frequency, send the broadcast and the down-bound pilot frequency signal of service district;
Step 5, said indoor base station obtain the mobile terminal subscriber information of entering on the traction sub-district, judge whether it is authorized user, if unauthorized user is then repatriated go back to former base station with this user, if authorized user then gets into next procedure;
Step 6, said indoor base station are moved to service district with authorized user, set up service channel according to business demand, provide professional;
Step 7, said indoor base station detect variation and self operating state of peripheral cell environment, if change or unusually then said indoor base station is got back to step 1, if do not change or unusual, said indoor base station is got back to step 4.
Indoor base station of the present invention; Have such characteristics; Air interface, the access way of supporting 3-G (Generation Three mobile communication system) is existingly to insert the cable broadband network insertion to indoor base station controller or gateway device with wired or wireless access way through indoor, is connected to the core net of 3-G (Generation Three mobile communication system) again through interface.This kind structure composition has solved access way and indoor environment covers and the restriction of capacity, and mobile phone users can exclusively enjoy wireless and the wire transmission resource indoor, obtains the service of mobile broadband multimedia service.Indoor base station is the equipment to indoor user application, and indoor user can be that the domestic consumer also can be the user of small enterprise.
The present invention proposes a kind of processing method realization mobile phone users of overloading frequency multi-cell that in the 3G (Third Generation) Moblie indoor base station is used, adopts and move to indoor base station, thereby obtain 3G (Third Generation) Moblie network service method from outdoor macro base station.
This speech of migration described in the present invention has mobile phone users is automatically guided the implication of transferring to leaving signal coverage areas; And described repatriation has and it is corresponding to move, and mobile phone users is automatically guided the implication of transferring to macro base station or other indoor base stations.The present invention is in a plurality of carrier frequency passages; One or more carrier frequency passages that are specifically designed to the traction terminal have been defined: the traction carrier frequency; A traction of corresponding structure sub-district; To carry out monitoring and the judgement to the mobile phone users in the new inlet chamber specially on the traction sub-district, all the other carrier frequency channel definition are that business carrier frequency provides the regular traffic service for the mobile phone users of the indoor base station of having moved with this; Traction carrier frequency and business carrier frequency choose the method that adopts autonomous frequency configuration, make indoor base station be minimum with mutual interference mutually between peripheral base station; Send CBCH in traction on the carrier frequency channel, for the mobile phone users of authorizing in this indoor base station work, indoor base station can be automatically moved to the business carrier frequency corresponding district of indoor base station, i.e. service district with it from outdoor macro base station; Business carrier frequency and corresponding service sub-district can be one or more; Not accepting it for unauthorized mobile phone users obtains business service and it is repatriated back macro base station or other indoor base stations on this indoor base station; When authorizing mobile phone users in this indoor base station work to leave when indoor, also can guarantee it and move to outdoor macro base station or other indoor base stations from indoor base station; For guaranteeing the synchronous of indoor base station and GSM; Can be periodically on traction carrier frequency or other carrier frequency or the reception of Event triggered mode and extraction from the synchronizing signal of outdoor macro base station or other indoor base station, calibrate the synchronizing signal and the reference clock of indoor base station with this.
The method of mentioning among the present invention has realized in uninterrupted monitoring and the identification of special use traction carrier frequency to the mobile phone users of entering simultaneously; Also normal business service is provided for the mobile phone users that is operated in business carrier frequency; According to the number of the selected business carrier frequency of the size of traffic carrying capacity, satisfy business demand to high-speed data, multi-user.
The function of the present invention's realization mainly comprises in sum: set special carrier frequency is used for mobile phone users for the traction carrier frequency automatic traction, mandate and unauthorized user authentication, auto acquisition system synchronizing signal; Having set other carrier frequency and be business carrier frequency is used to mobile phone users required business service is provided; Mobile phone users in the indoor base station in the in-hauling is worked simultaneously with the mobile phone users of having moved and is independent of each other each other.
Description of drawings
Fig. 1 is a method flow diagram of setting up indoor base station in one embodiment of the present invention;
Fig. 2 is the traction sub-district sketch map that indoor base station makes up in one embodiment of the present invention;
The service district sketch map that indoor base station makes up in Fig. 3 one embodiment of the present invention;
Indoor base station triggers the sketch map obtain each carrier frequency passage when synchronous in Fig. 4 one embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing execution mode of the present invention is described in detail.
As shown in Figure 1, in the TD-SCDMA system, indoor base station is supported the Uu air interface, utilizes method of the present invention, adopts the scheme of overloading frequency multi-cell to realize the migration of mobile phone users from the outdoor macro base station to the indoor base station.The key point of the signal processing method of overloading frequency multi-cell is: indoor base station equipment is a multi-carrier frequency system.In this system, wherein one or more carrier frequency channel definition are the traction channel, sole duty is used to draw the mobile phone users in the inlet chamber, and all the other carrier frequency passages can be used for business channels; Broadcast channel is constantly sent in the structure sub-district on the traction channel; Whether the judgement decision through obtaining the mobile phone users identity is that it provides professional through indoor base station; If be authorized user then it is moved on the business carrier frequency, otherwise will be repatriated back macro base station; Utilize the downlink pilot time gap of traction carrier frequency passage, the downlink pilot frequency channel that receives outdoor macro base station obtains synchronizing signal, proofreaies and correct the synchronizing signal of indoor base station with this, guarantees synchronous with GSM.
And for example Fig. 2, the channel allocation signal that disclosed one embodiment of the present invention shown in 3 and 4 in the sketch map,
The system broadcast channel of 101-indoor base station traction sub-district;
The downlink pilot frequency channel of 102-indoor base station traction sub-district;
The down channel district of 103-indoor base station traction sub-district;
The up channel district of 104-indoor base station traction sub-district;
The wireless sub-frame of 105-TD-SCDMA system;
The system broadcast channel of 201-indoor base station service district;
The downlink pilot frequency channel of 202-indoor base station service district;
The down channel district of 203-indoor base station service district;
The up channel district of 204-indoor base station service district;
The 301-indoor base station receives the system broadcast channel from synchronisation source;
The 302-indoor base station receives the downlink pilot frequency channel from synchronisation source;
The 303-indoor base station obtains the carrier frequency passage down channel district of synchronizing signal;
The 304-indoor base station obtains the carrier frequency passage up channel district of synchronizing signal;
Other carrier frequency passage down channel district when the 403-indoor base station obtains synchronizing signal;
Other carrier frequency passage up channel district when the 404-indoor base station obtains synchronizing signal;
Its gap corresponding other carrier frequency pathway closure district when the 405-indoor base station obtains synchronizing signal time;
The signal processing method of the overloading frequency multi-cell that this execution mode adopts comprises the steps:
Step S101, indoor base station starts;
Step S102, at first indoor base station works in terminal pattern, and the signal of macro base station and other indoor base station around receiving is measured the power and signal quality of ambient signals, and is received the broadcast on the broadcast channel, obtains adjacent sub-district with tabulation and alien frequencies tabulation frequently;
Step S103 is according to the working frequency points that the signal quality of macro base station around adjacent cell list that reads and the measurement confirms to draw carrier frequency, structure traction sub-district on this traction carrier frequency; According to the situation of the macro base station that exists on every side and other indoor base station, be criterion with this indoor base station with GSM interference minimum each other on every side, select the working frequency points of business carrier frequency, and construct service district with this;
Step S104, the best or good macro base station of selective reception signal quality or other indoor base station are the synchronisation source of this indoor base station, receive the down-bound pilot frequency signal of synchronisation source and extract synchronizing signal; If signal on every side can't reach the signal conditioning as synchronisation source, then oneself to be the living synchronizing signal of main product; If indoor base station is to be synchronisation source with outdoor macro base station or other indoor base station; Then this indoor base station need receive the downlink broadcast channel 301 and down-bound pilot frequency signal 302 from synchronisation source in the time slot of downlink broadcast channel on traction carrier frequency or other carrier frequency and descending pilot frequency, extracts synchronizing signal; And remaining other carrier frequency passage is not launched any signal on the gap at this moment, can this time gap 405 be controlled to be closed condition for guaranteeing the synchronizing signal quality that receives;
Step S105, with periodically or the mode of Event triggered start synchronizing process;
Step S106 converts indoor base station into base station mode, on the traction carrier frequency, sends the broadcast channel 101 and down-bound pilot frequency signal 102 of traction sub-district, on business carrier frequency, sends the broadcast channel 201 and down-bound pilot frequency signal 202 of service district;
Step S107 on the sub-district of traction carrier frequency structure, monitors the mobile phone users that gets into, and obtains the identification code of mobile phone users,
Whether step S108 judges whether it is authorized user, be that it provides professional on business carrier frequency with decision;
Step S109, unauthorized user will be repatriated back macro base station;
Step S110 is moved to it on business carrier frequency authorized user, keeps the normal signaling link of itself and service district and the business of being asked is provided at any time moving to mobile phone users on the service district;
Step S111 causes that when surrounding environment changes condition that indoor base station relies on changes can't use the time, or indoor base station operation irregularity or when resetting, indoor base station need restart above-mentioned process.
Need further be pointed out that; If when when terminal pattern, not monitoring the suitable outdoor base station of received signal quality or other indoor base station signal, this indoor base station will independently be set system information of subdistricts such as the working frequency points, cell ID of traction sub-district and service district.
In the said method of above-mentioned execution mode; The choosing method of indoor base station business carrier frequency is criterion with indoor base station with GSM interference minimum each other on every side; In the working frequency range that indoor base station is supported, the frequency in the available band that selection need of work bandwidth actual with it is complementary in available frequency table is as working frequency points." a kind of method of autonomous configuration 3G (Third Generation) Moblie indoor base station operating frequency " application for a patent for invention of the visible the applicant of concrete grammar.
Above-mentioned execution mode of the present invention; Be not to be restriction to claim protection range of the present invention; Those skilled in the art can the mobile communication system to other standards make various distortion and modification in the appended claim scope of the present invention, can fall into rights protection scope of the present invention too.
Claims (14)
1. the method for building up of a multi-carrier-frequency indoor base stations is characterized in that, said method comprising the steps of:
Said indoor base station is chosen at least one carrier frequency as the traction carrier frequency in a plurality of carrier frequency;
Said indoor base station with the non-traction carrier frequency in described a plurality of carrier frequency as business carrier frequency;
Said indoor base station is constructed the traction sub-district on said traction carrier frequency, through said traction sub-district the mobile phone users that passes in and out said leaving signal coverage areas is carried out migration management then;
Said indoor base station is constructed service district on said business carrier frequency, to the mobile phone users of obtaining the authorization communication service is provided through said service district then, wherein,
Said indoor base station is operated in terminal pattern, receives the signal of self-position peripheral base station, measures the signal power of peripheral base station, receives the broadcast on the broadcast channel, obtains adjacent sub-district with tabulation and alien frequencies tabulation frequently,
The signal power of the said peripheral base station that said indoor base station is tabulated with frequency according to the described adjacent sub-district that obtains and alien frequencies is tabulated and record is chosen described traction carrier frequency and cell ID,
Said indoor base station is included on the said traction sub-district the migration management of the mobile phone users that passes in and out said leaving signal coverage areas through said traction sub-district mobile phone users is carried out authentication,
Said indoor base station is meant the mobile phone users to obtaining the authorization through said traction sub-district to the migration management of the mobile phone users that passes in and out said leaving signal coverage areas; Said indoor base station is moved to self base station with its base station from other; To the mobile phone users of not obtaining the authorization, said indoor base station is repatriated go back to former base station with it.
2. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 1 is characterized in that, also comprises step:
Said indoor base station sends the broadcast and the down-bound pilot frequency signal of traction sub-district on said traction sub-district;
Said indoor base station sends the broadcast and the down-bound pilot frequency signal of service district on said service district.
3. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 1 is characterized in that, said indoor base station sends the broadcast of drawing the sub-district to be less than or equal to the indoor base station rated output power on said traction sub-district.
4. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 1 is characterized in that, said indoor base station on said service district to be less than or equal to the broadcast that the indoor base station rated output power sends service district.
5. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 1 is characterized in that, said indoor base station is set synchronizing signal.
6. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 5 is characterized in that, comprises that also said indoor base station receives and extract the synchronizing signal of self-position peripheral base station.
7. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 6 is characterized in that, said indoor base station receives and extract the synchronizing signal of self-position peripheral base station with the mode of timing triggering or Event triggered.
8. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 6 is characterized in that, comprises that also said indoor base station carries out in the synchronizing signal of more than one self-position peripheral base station preferably.
9. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 6; It is characterized in that; Said indoor base station receives the descending pilot frequency from self-position peripheral base station synchronisation source on said traction carrier frequency or said business carrier frequency time slot corresponding, extract synchronizing signal and reference clock that synchronizing signal is calibrated said indoor base station.
10. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 5 is characterized in that, comprises that also said indoor base station is to produce synchronizing signal as synchronisation source certainly.
11. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 1 is characterized in that, said indoor base station is constructed the system message of said traction sub-district and said service district voluntarily.
12. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 1 is characterized in that, said indoor base station is participated in the system message of structure said traction sub-district and said service district by external equipment.
13. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 12 is characterized in that, said indoor base station comprises gateway device by the said external equipment in the system message of external equipment participation structure said traction sub-district and said service district.
14. the method for building up of multi-carrier-frequency indoor base stations as claimed in claim 1 is characterized in that, said method comprises following sequential steps:
Step 1, said indoor base station work in terminal pattern, measure the signal of self-position peripheral base station and receive broadcast, obtain adjacent sub-district with tabulation and shift frequency tabulation frequently;
Step 2, said indoor base station are chosen traction carrier frequency and business carrier frequency, structure traction sub-district and service district;
Step 3, said indoor base station are confirmed synchronisation source, extract synchronizing signal, produce the synchronizing signal of indoor base station;
Step 4, said indoor base station convert base station mode into, on the traction carrier frequency, send the broadcast and the down-bound pilot frequency signal of traction sub-district, on business carrier frequency, send the broadcast and the down-bound pilot frequency signal of service district;
Step 5, said indoor base station obtain the mobile terminal subscriber information of entering on the traction sub-district, judge whether it is authorized user, if unauthorized user is then repatriated go back to former base station with this user, if authorized user then gets into next procedure;
Step 6, said indoor base station are moved to service district with authorized user, set up service channel according to business demand, provide professional;
Step 7, said indoor base station detect variation and self operating state of peripheral cell environment, if change or unusually then said indoor base station is got back to step 1, if do not change or unusual, said indoor base station is got back to step 4.
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| CN102625348B (en) * | 2012-03-02 | 2014-12-10 | 京信通信系统（中国）有限公司 | Frequency tracking method and device |
| CN103327499B (en) * | 2012-03-23 | 2016-02-24 | 开曼晨星半导体公司 | A kind of indoor base station cell method for building up |
| CN104955057A (en) * | 2014-03-24 | 2015-09-30 | 中国移动通信集团公司 | Method, device and terminal for realizing indoor coverage |
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| CN101018399A (en) * | 2006-12-28 | 2007-08-15 | 电子科技大学 | A fast access method of the mobile communication terminal |
| CN101252786A (en) * | 2008-03-27 | 2008-08-27 | 华为技术有限公司 | Base station, wireless communication system and switch method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101018399A (en) * | 2006-12-28 | 2007-08-15 | 电子科技大学 | A fast access method of the mobile communication terminal |
| CN101252786A (en) * | 2008-03-27 | 2008-08-27 | 华为技术有限公司 | Base station, wireless communication system and switch method |
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