CN1249111A - Method of allocating a home cell to a subscriber station - Google Patents
Method of allocating a home cell to a subscriber station Download PDFInfo
- Publication number
- CN1249111A CN1249111A CN 98802840 CN98802840A CN1249111A CN 1249111 A CN1249111 A CN 1249111A CN 98802840 CN98802840 CN 98802840 CN 98802840 A CN98802840 A CN 98802840A CN 1249111 A CN1249111 A CN 1249111A
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- CN
- China
- Prior art keywords
- subscriber station
- home cell
- station
- base station
- wireless area
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/14—WLL [Wireless Local Loop]; RLL [Radio Local Loop]
Abstract
The present invention relates to a method of allocating a home cell to a subscriber station of a cellular radio system. For choosing the best possible cell as the home cell for the subscriber station, the subscriber station is freely allowed to use any radio cell or a certain limited group of several optional radio cells within the system. When the subscriber station establishes a connection through a given radio cell, an identifier indicating the radio cell being utilized is stored in a register. The radio cells, the subscriber station has utilized the most, are identified on the basis of the data stored in the register, and at least one of said radio cells, the subscriber station has utilized the most, is allocated as the home cell to the subscriber station.
Description
The present invention relates to a method of distributing a home cell (home cell) for a subscriber station, the invention still further relates to a cellular radio system, this system comprises a mobile services switching centre, subscriber station in being contained in its overlay area provides the base station of the device that is communicated to connect by radiofrequency signal, control this base station and between subscriber station and mobile services switching centre, transmit device and a subscriber station that establishes a communications link that can utilize in some selecteed base stations of signal of communication.
Though the present invention also can be used in other connection, but the present invention relates generally to a wireless local circuit system (WLL), system that utilizes fixing all subscriber stations just, the signal of communication of each subscriber station then utilizes the wireless path of a cellular radio system to transmit.Because the subscriber station in the WLL system is fixedly mounted in the address of an appointment usually, usually do not need promptly to set up a possibility that communicates to connect by any one base station in the system for above-mentioned subscriber station provides mobility.Although the WLL subscriber station is a subscriber station in the cellular radio system, wherein also contain system ambulant mobile subscriber station above-mentioned is provided for it, but, if can cancel mobility, perhaps limit the sub-district that does not need moving freely property at least from the WLL subscriber station, this is good.So, can reduce necessary address and upgrade and handoff operation, thereby save system resource.As a result, be connected to the WLL system, just need distribute a home cell to each subscriber station.
In known method, it is such distributing the way of a home cell for a designated user station, when this subscriber station adds this system, and an operator, for example use a map, check which wireless area and cover the region that subscriber station is installed comparatively best.Then, the operator distributes to subscriber station to above-mentioned wireless area as home cell.The significant disadvantages of this known method is that the field intensity of a wireless area has sizable variation from the three unities to another place in the sub-district, particularly in the urban district, and the propagation that building can interference signal.Therefore, if be that a designated user station selects a home cell just may fail uniquely according to the map.Owing to actual reason, relate to huge workload, the operator can not send the maintenance personal to go to measure field intensity to the address of each subscriber station.
A target of the present invention is exactly to solve the problem propose above and a way of distributing a home cell to a designated user station is provided, and selects only home cell in reliable and easily mode for each subscriber station.Can to reach this target with method of the present invention, to it is characterized in that allowing this subscriber station freely to use any one wireless area in this system scope or the group that some chosen wireless area of certain limitation is arranged in order establishing a communications link.When this subscriber station is set up a connection by a wireless area, maybe when setting up one when connecting to this subscriber station by a wireless area, the identifier of this used wireless area is deposited in the predetermined register, this subscriber station goes out the most frequently used wireless area according to the data identification in the above-mentioned register, and at least an above-mentioned the most frequently used wireless area is distributed to subscriber station as home cell.
The present invention is based on such thought, when a home cell is distributed to the subscriber station of an appointment, in order to establish a communications link, this subscriber station at first is allowed to freely use any one wireless area, or uses one group of some chosen wireless area that certain limitation is arranged in system scope.In other words, above-mentioned subscriber station at first is allowed to or mobility is fully freely arranged, and perhaps in some predetermined sub-district mobility is freely arranged at least.So this subscriber station can be set up a connection by this selecteed wireless area in the system, condition available vacant channels in above-mentioned sub-district naturally.If this subscriber station of discussing moves in a restricted zone, perhaps change a fixing subscriber station into, such as the subscriber station that is a WLL, above-mentioned subscriber station just might be installed in the place of some selecteed wireless area of energy uppick.Thereby this subscriber station tries hard to select the best wireless area of audibility.The audibility of a wireless area is bad in the time of also might fashion, thereby this subscriber station there is no need always to select same wireless area when connecting setting up one.According to the present invention, the used wireless area of this subscriber station is added up, through after the regular period, the most frequently used sub-district, just subscriber station is best home cell hereto, just can determine according to statistics.According to the present invention, collect about the length of the calling undertaken by different sub-districts by this subscriber station and carry out above-mentioned statistics with the data of the number of times of the calling of being undertaken by different sub-districts by this subscriber station.Further, collection is about the data of the traffic load (promptly silent/rush hour) of used wireless area, add up about the data of the traffic load of the adjacent area of the sub-district of using with about the data of the field strength measurement of the sub-district of using and adjacent area.
The most tangible advantage of method of the present invention is, when distributing a home cell, can consider the actual audibility of each sub-district on the subscriber station mounting points, and the unnecessary field strength measurement that carries out on mounting points also has, when in the network change being arranged, do slightly to make great efforts just can distribute a new home cell to each subscriber station, and method of the present invention also can be applied to existing systems, because existing systems can be changed by the software of analogy reorganization mobile services switching centre.
Method of the present invention also can be used continuously, just, can monitor continuously that such as system one was once set up the sub-district of a connection by the subscriber station attempt by it, in this case, the home cell of subscriber station or his each home cell can be such as automatically redistributing by fixing interval.
Method of the present invention can also be used to distributing a more than home cell to the subscriber station of an appointment.If a user, such as he villa and dwelling house in use same subscriber station, in this situation, distribute two home cells that the phase mutual edge distance is opened can for this subscriber station.According to the present invention, also can distribute to this subscriber station to a group home cell, every group comprises several adjacent sub-districts.Like this, just can be equipped with only wireless area among the home cell group to subscriber station.
The invention still further relates to the cellular radio system that to use method of the present invention therein.System of the present invention is characterised in that this system comprises the register setting of the necessary data in the storage some base stations of identification, above-mentioned subscriber station is set up one by this base station just and is communicated to connect, and perhaps sets up a connection of receiving above-mentioned subscriber station by this base station just.This system also comprises the device of the above-mentioned subscriber station of identification the most frequently used base station in it communicates to connect.
Method of the present invention and system of the present invention are disclosed in attached dependent claims 2 to 4 and 6 to 9.
Below, the present invention will be described in more detail by some band embodiment with reference to the accompanying drawings, wherein
Fig. 1 represents the flow chart of embodiment of first recommendation of method of the present invention.
Fig. 2 represents the block diagram of embodiment of first recommendation of system of the present invention.
Fig. 3 represents the block diagram of embodiment of second recommendation of system of the present invention.
Fig. 4 represents the block diagram of embodiment of the 3rd recommendation of system of the present invention.
Fig. 1 represents the flow chart of embodiment of first recommendation of method of the present invention.In the A of Fig. 1 frame, distribute a home cell for a subscriber station, make this subscriber station at first obtain moving freely property in system, that is to say that this subscriber station freely any one base station in the using system is set up one and communicated to connect.Perhaps, allow this subscriber station that mobility is freely arranged in the area group of an appointment.This subscriber station of being discussed may be a new subscriber station that comes into operation recently, perhaps other situation, the home cell that is assigned to before this subscriber station has, because some changes in the analogy network, the operator wishes whether the home cell of examining above-mentioned subscriber station should change.
In the B frame, this subscriber station of system monitoring, with the calling that detects portable terminal point or, accordingly, the calling of mobile originating point.
When the calling of calling that detects a portable terminal point or mobile originating point, in the C frame, the required identifier in identification sub-district/base station deposits a predetermined register in.Simultaneously, when calling out or after calling out, can also be the connect hours, promptly from this subscriber station by above-mentioned sub-district/base station connect the duration, the data about the traffic load in the data of the data of the traffic load in above-mentioned sub-district/base station (being the capacity that is using in this sub-district/base station total amount) each base station adjacent with above-mentioned sub-district/base station with explanation are deposited in register.Further, can also deposit the signal quality data how that to receive each wireless area about this subscriber station in register.A subscriber station can be received six base stations that signal the strongest about the measurement data of its used base station with it to this System Reports such as the subscriber station of gsm mobile telephone system.According to the present invention, these measurement data also can deposit in the register.
This subscriber station can be monitored in one period scheduled time before analogy is assigned to the home cell of this subscriber station reality.Perhaps, this home cell can the incident just distribution afterwards about this subscriber station of recording scheduled quantity in above-mentioned register.In such cases, program is carried out to frame E by frame D.Distributing a home cell also can be a continuous process, promptly monitors this subscriber station continuously, then, home cell just can, such as automatically redistributing by predetermined interval.
In frame E,, determine once by the identifier of the most frequently used those sub-districts that establish a communications link of above-mentioned subscriber station by means of the data that write down in the register.
In frame F, in the most frequently used sub-district of this subscriber station one distributes to this subscriber station as home cell.The number of times that can be used by this subscriber station according to this sub-district or total connect hours are selected.Therefore, the once the most frequently used sub-district of this subscriber station needn't automatically be selected as home cell, and also can consider other factor in selection.For example, if once by the most frequently used sub-district of this subscriber station, its average traffic surpasses next the most frequently used sub-district significantly, and the latter can be assigned to home cell (certainly, condition is that they will overlap and cover the almost adjacent area of same area mutually).When distributing a home cell, can use the data of relating to frame C narration about traffic load and various thermometricallies, can select the traffic load that uses such as this subscriber station in the sub-district usually not significantly greater than the sub-district of its adjacent area.According to the present invention, the data that can obtain when monitoring this subscriber station are distributed to this subscriber station to some home cell or some home cell group rather than a home cell.
Fig. 2 represents the block diagram of embodiment of first recommendation of system of the present invention.Cellular radio system among Fig. 2 can be such as a part that is GSM (Groupe Special Mobile).Provide to the communicating to connect of all mobile radio station MS and WLL subscriber station 1 with the system among Fig. 2, these stations meanings are fixedly mounted in appointed positions.
System among Fig. 2 comprises a mobile services switching centre MSC, and by two base station controller BSC 1 and BSC2 and three base transceiver station BTS1, BTS2 and BTS3 provide service for all subscriber station MS and 1 in system coverage area for it.
WLL subscriber station 1 among Fig. 2 is by a terminal that comprises a radio unit and a remote adapter, with a user interface, just a network telephone that is connected to terminal is formed, and is installed in to make it can use base station BTS 1 or the BTS3 place that communicates to connect as it.If system operator wishes to distribute a home cell to give this subscriber station 1, so, according to the present invention, this subscriber station at first obtains the moving freely property in system, perhaps, obtains at certain hour, promptly in learning phase, the moving freely property in some part of system.So subscriber station (supposition is fixedly mounted in place shown in Figure 2) can freely use base station BTS 1 or BTS3.This mobile services switching centre MSC monitors this subscriber station 1 in above-mentioned learning phase, and whenever this subscriber station 1 is set up a connection by certain sub-district/base station, when communicating to connect connection, in register 2, write down record about this sub-district/base station.Register can couple together with the HLR (original position address register) such as mobile services switching centre.
After above-mentioned learning phase is finished, go out the most frequently used base station of this subscriber station according to the data identification that is stored in register 2.Above-mentioned subscriber station should at first be distributed to as home cell certainly in sub-district by this most frequently used base station maintain, unless the reason of other various kinds is arranged, just select certain other sub-district.When home cell has been distributed to this WLL subscriber station, mobile services switching centre deposits the data of relevant this home cell in register 2.After, mobile services switching centre just can prevent that above-mentioned subscriber station from using other sub-district, the result, and the address that needs in the system is upgraded and the handover number of times just can reduce.If although to require at one be not to be traffic channel of request in his home cell to this subscriber station 1, mobile services switching centre MSC also will be for above-mentioned subscriber station provides traffic channel with base station controller BSC 1, and just this traffic channel is the home cell of this subscriber station.In addition, when a situation of bordering on the area that is installed in two adjacent areas that subscriber station is static, the present invention can prevent from ceaselessly to carry out the operation of handover.
In the system of Fig. 2, can be according to corresponding method recited above a home cell, or some home cells are distributed to mobile radio station MS naturally, when this mobile radio station was set up a connection with one in his home cell, an operator can rely on this method to reduce price for above-mentioned mobile radio station.
Fig. 3 represents the block diagram of embodiment of second recommendation of system of the present invention.Embodiment among Fig. 3 in other respects all with Fig. 2 in situation suitable, difference is among the embodiment in Fig. 3, arranged a register, the data of those base stations were used in preservation at learning phase about subscriber station MS, this register is connected with base station controller BSC 3, rather than resembles and be connected with mobile services switching centre the situation among Fig. 2.Therefore, in learning phase, just in register 3, write down data when having only this subscriber station to use sub-district BTS4 or BTS5.Correspondingly, after learning phase is finished, and a home cell or some home cells have been distributed to this subscriber station, data about these home cells just are stored in the register 3 of this base station controller, when setting up a connection of leading to this subscriber station MS, can from register 3, retrieve these data.
The base station BTS 4 that only also allows among the embodiment in Fig. 3 to be in base station controller BSC 3 controls at this subscriber station is in the zone that BTS5 covered, and this system just considers the data about the home cell of this subscriber station MS.Like this, if this subscriber station temporarily be in such as be the sub-district of a base station BTS 6 or some other with the irrelevant sub-district of base station controller BTC3 in, the data in the register 3 that is stored in base station controller BSC 3 are just ignored by this system.
Fig. 4 represents the block diagram of embodiment of the 3rd recommendation of system of the present invention.
Fig. 4 illustrates that two groups of home cells have distributed to the situation of this subscriber station MS.First group of home cell comprises three adjoining sub-district A, and correspondingly, second group of home cell comprises four adjoining sub-district B.Fig. 4 expresses first group of home cell and the second group of home cell and is placed in each other apart place.
In the system of Fig. 4, the operator can stipulate that this mobile radio station MS only allows to set up calling from home cell A and B, but, during connecting, such as the requirement owing to traffic load, this system always can transfer to one to above-mentioned subscriber station by a handoff operation and also not be used as the sub-district that a home cell is distributed to this subscriber station MS.
Be to be understood that above narration only is for the present invention is described with relevant drawing.Obviously, for the people in the industry, can make many changes and variation not breaking away under category disclosed in additional claim and the spirit.
Claims (9)
1. a home cell is distributed to the method for a subscriber station of a cellular radio system, be it is characterized in that
Allow this subscriber station freely to use any one wireless area in this system scope in order to establish a communications link, or the selected wireless area of certain group that certain limitation is arranged,
When this subscriber station is set up a connection by this wireless area, or when setting up a connection of receiving this subscriber station, at least the identifier of a wireless area that is used is deposited in the predetermined register by this wireless area,
By this subscriber station according to be stored in data identification in the above-mentioned register go out the most frequently used wireless area and
At least one above-mentioned the most frequently used wireless area is distributed to this subscriber station as home cell.
2. a method described in the claim 1 is characterized in that some home cell is distributed to this subscriber station.
3. a method described in the claim 1, it is characterized in that some each other apart home cell group distribute to this subscriber station, each home cell group comprises some adjacent sub-districts.
4. a method described in any of claim 1 to 3, it is characterized in that if this home cell or some home cell have been distributed to this subscriber station, use because in communicating to connect, only the traffic channel of the home cell of this subscriber station is distributed to this subscriber station, just prevented that this subscriber station from using his home cell other sub-districts in addition.
5. a cellular radio system wherein comprises
A mobile services switching centre (MSC),
Some base stations (BTS1 is to BTS6), comprising in these base stations by the subscriber station (MS, 1) of radiofrequency signal in being installed in their coverage provides the device that communicates to connect,
Some devices (BSC1 is to BSC4), in order to control the base station between this subscriber station and mobile services switching centre, transmit signal of communication and
Subscriber station (1, MS), can use one in some selected base stations to establish a communications link,
The system is characterized in that and comprise
Register setting (2,3) is in order to storage identification base station (BTS2, BTS3, BTS4, BTS5) required information, above-mentioned subscriber station (1, MS) be to set up one by these base stations to communicate to connect, or by these base stations set up one receive above-mentioned subscriber station communicate to connect and
Some devices (MCS, BSC3), in order to discern above-mentioned subscriber station the most frequently used base station in establishing a communications link.
6. a system described in the claim 5, it is characterized in that this system comprises control device (MCS, BSC3), these control devices (MSC, BSC3) according to register setting (2,3), from the most frequently used base station of this subscriber station (BTS2, BTS3, BTS4, BTS5) in, at least one origin base station distribute to this subscriber station control device (MCS, BSC3), these control devices (MSC, BSC3) be arrange to prevent subscriber station (1, MS) and not be to set up one between some base station of origin base station to communicate to connect.
7. a system described in the claim 5 is characterized in that this system comprises according to register setting, from the most frequently used base station of this subscriber station (BTS2, BTS3, BTS4, BTS5) in, some origin base station are distributed to the control device of this subscriber station.
8. a system described in the claim 6 or 7, which it is characterized in that regardless of the calling of sending by base station from this subscriber station, when replying from calling that this subscriber station is sent, control device (MSC, BSC3) always from an origin base station, distribute a traffic channel to give this subscriber station, such arrangement with prevent subscriber station (1, MS) and not be to set up one between some base station of origin base station to communicate to connect.
9. a system described in each of claim 5 to 8 is characterized in that above-mentioned cellular radio system is a gsm system.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI970792A FI104684B (en) | 1997-02-25 | 1997-02-25 | Method of selecting a home cell for a subscriber device |
| FI970792 | 1997-02-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1249111A true CN1249111A (en) | 2000-03-29 |
Family
ID=8548277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98802840 Pending CN1249111A (en) | 1997-02-25 | 1998-02-20 | Method of allocating a home cell to a subscriber station |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0963665A2 (en) |
| JP (1) | JP2001513286A (en) |
| CN (1) | CN1249111A (en) |
| AU (1) | AU6217098A (en) |
| CA (1) | CA2282333A1 (en) |
| FI (1) | FI104684B (en) |
| WO (1) | WO1998038819A2 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6070085A (en) * | 1997-08-12 | 2000-05-30 | Qualcomm Inc. | Method and apparatus for controlling transmit power thresholds based on classification of wireless communication subscribers |
| FI107861B (en) | 1998-08-28 | 2001-10-15 | Nokia Mobile Phones Ltd | Neighbor cell measurements for cell reselection |
| FI105636B (en) * | 1998-10-01 | 2000-09-15 | Nokia Networks Oy | Procedure for defining a home area for a subscriber |
| FI990183A (en) * | 1999-02-01 | 2000-08-02 | Nokia Networks Oy | Cellular radio system |
| DK199900573A (en) * | 1999-04-27 | 2000-10-28 | Tele Danmark As | Method and apparatus for automatic, geographically defined, individual differentiation of selected services to b |
| KR100315473B1 (en) * | 1999-11-19 | 2001-11-26 | 윤종용 | Method for updating homezone list |
| KR100365337B1 (en) * | 2000-07-01 | 2002-12-18 | 삼성전자 주식회사 | Method for upgrading data-base of home-zone service area in mobile communication system |
| WO2004014094A1 (en) * | 2002-08-05 | 2004-02-12 | Fujitsu Limited | Channel control device and channel control method |
| FR2861531B1 (en) * | 2003-10-24 | 2006-01-21 | Nec Tech Uk Ltd | METHOD FOR DETECTING A RADIO ENVIRONMENT STABILITY AREA OF A MOBILE TERMINAL IN A CELLULAR TELECOMMUNICATION NETWORK |
| EP1807999B1 (en) | 2004-10-14 | 2013-07-03 | Novatel Wireless, Inc | System and method for limiting a wireless communication device to a specified geographic zone |
| JP5487641B2 (en) * | 2009-02-25 | 2014-05-07 | 日本電気株式会社 | Femtocell information server, femtocell base station, femtocell information providing method and program |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9223586D0 (en) * | 1992-11-11 | 1992-12-23 | Vodafone Ltd | Radio telecommunication systems and methods |
| EP0666700A1 (en) * | 1994-02-03 | 1995-08-09 | AT&T Corp. | Virtual mobile location area |
| US5737702A (en) * | 1995-03-08 | 1998-04-07 | Northern Telecom Limited | Cellular radio communications system |
| US5568153A (en) * | 1995-05-30 | 1996-10-22 | Telefonaktiebolaget Lm Ericsson | Individually defined personal home area for subscribers in a cellular telecommunications network |
| SE9503521L (en) * | 1995-10-05 | 1996-10-07 | Telia Ab | Method and device for identification of home area by mobile telecommunication system |
-
1997
- 1997-02-25 FI FI970792A patent/FI104684B/en active
-
1998
- 1998-02-20 AU AU62170/98A patent/AU6217098A/en not_active Abandoned
- 1998-02-20 JP JP53733898A patent/JP2001513286A/en active Pending
- 1998-02-20 CA CA002282333A patent/CA2282333A1/en not_active Abandoned
- 1998-02-20 WO PCT/FI1998/000154 patent/WO1998038819A2/en not_active Application Discontinuation
- 1998-02-20 EP EP98904199A patent/EP0963665A2/en not_active Withdrawn
- 1998-02-20 CN CN 98802840 patent/CN1249111A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2001513286A (en) | 2001-08-28 |
| AU6217098A (en) | 1998-09-18 |
| WO1998038819A2 (en) | 1998-09-03 |
| EP0963665A2 (en) | 1999-12-15 |
| WO1998038819A3 (en) | 1998-12-17 |
| CA2282333A1 (en) | 1998-09-03 |
| FI970792A0 (en) | 1997-02-25 |
| FI104684B (en) | 2000-04-14 |
| FI970792A (en) | 1998-08-26 |
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