CN1277428C - Automatic re-origination method for multimedia or voice call in mobile station - Google Patents
Automatic re-origination method for multimedia or voice call in mobile station Download PDFInfo
- Publication number
- CN1277428C CN1277428C CNB031476732A CN03147673A CN1277428C CN 1277428 C CN1277428 C CN 1277428C CN B031476732 A CNB031476732 A CN B031476732A CN 03147673 A CN03147673 A CN 03147673A CN 1277428 C CN1277428 C CN 1277428C
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- China
- Prior art keywords
- base station
- wll terminal
- power
- received signal
- terminal
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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]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W40/00—Communication routing or communication path finding
- H04W40/02—Communication route or path selection, e.g. power-based or shortest path routing
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
Abstract
A method for controlling a WLL terminal having a limited mobility function and a control method thereof are provided to measure RSSIs of many base stations to set an activated regional range, and to operate the WLL terminal only when all RSSI values are located within the activated regional range, thereby exactly executing the limited mobility function. A system is in initial state(S1), and individually measures RSSIs delivered from many base stations(S2). The system sets an activated region, and registers terminals in each base station(S3). The system decides whether an RSSI received from the first base station is located within a preset valid reception range(S4). If so, the system decides whether an RSSI of the second base station is located within the preset valid reception range(S6). If so, the system decides whether an RSSI of the third base station is located within the reception range(S7). If so, the system activates the terminals, and executes functions of the set terminals.
Description
Technical field
The present invention relates to a kind of apparatus and method that are used to limit the mobility of WLL (wireless local loop) terminal, specifically, the alignment features that the present invention relates to be used for the receiving element by the restriction wll terminal limits the apparatus and method of the mobility of wll terminal.
Background technology
Usually, wireless local loop (WLL) system has constituted the telephone system with subscribers feeder radio communication rather than that utilize cable intracardiac in the about 2-6km in base station.
As the WLL system, developed many systems, comprise the system that utilizes satellite; Utilize the fixedly system of microwave; Utilize the system of cellular technology and utilize the system that does not have sign indicating number technology (codeless).Wherein, utilize the system of cellular technology to be widely used.
For the system that utilizes cellular technology, can in bigger zone, provide professional by utilizing mobile telephone service or Personal Communications Services (PCS) network, and can make up business network economically.
Utilize the system of cellular technology to comprise frequency division multiple access (FDMA) method, time division multiple access (TDMA) method and code division multiple access (CDMA) method, wherein, the WLL system of CDMA method is widely used.
Fig. 1 is the block diagram that illustrates according to the structure of the wll terminal of routine techniques, and wherein the mobility of wll terminal is limited.
As shown in Figure 1, the WLL system comprises: wll terminal 10; Base station 20 is used to receive the radio signal from wll terminal 10; With switch 30, it is provided for from the base station the 20 best speech path that are sent to the data of heterogeneous networks.
Base station 20 comprises mobility limiting unit 21, and the location registration information and the handover information of its storage wll terminal 10 are judged the motion and the restriction call processing of wll terminal 10 on the basis of described information.
Switch 30 has the location verification as the information of the wll terminal 10 of registration in base station 20 and each wll terminal 10 of execution.
To the method that be used to limit the wll terminal mobility be described by the operation that utilizes the conventional WLL system that as above makes up now.
If the user uses wll terminal 10 for the first time, he registers wll terminal 10 in adjacent base station 20, be used for using in the cell range of respective base station 20.
Then, mobility limiting unit 21 receives and stores location registration information and the handover information from the wll terminal in the sub-district that is present in base station 20, also receive end message from the location verification information that comprises wll terminal 10 of switch 30, and store this information, thereby make up the database 31 of the positional information of each wll terminal 10 be used for being present in the sub-district.
Mobility limiting unit 21 judges whether setup requests receives from wll terminal 10 by base station 20.
When setup requests receives, the information of the current location information of the wll terminal that mobility limiting unit 21 request call is more set up and the previous wll terminal of in database 31, registering 10.If the information of front is consistent with the information of back, then mobility limiting unit 21 is verified call setups.
But if the information inconsistency of the information of front and back, then mobility limiting unit 21 is not verified call setup, but issue disconnects the instruction of calling out.
For the calling of previous foundation, whether mobility limiting unit 21 monitoring hand-off request receive from wll terminal 10.
If hand-off request receives from wll terminal 10, then 21 requests of transmitting of mobility limiting unit are used for information that the calling of wll terminal 10 disconnects to switch 30.Then, switch 30 transmits this and calls out open command to corresponding wll terminal 10.
As mentioned above, the conventional equipment and the method that are used to limit the wll terminal mobility are characterised in that, after one of the base station of wll terminal structure has the database of the positional information that is present in the wll terminal in the base station cell, by utilizing the moving range of Location Registration and hand-off functionality restriction wll terminal.Therefore, attempt at the Location Registration/call setup of different base station or attempt to the different base station handover if registration is used for the wll terminal of certain base station, then the WLL system disconnects forcibly and calls out or stop service.
But conventional equipment and method have following problem.
That is to say, because base station monitoring and the management positional information of a plurality of wll terminals or wll terminal handover whether, so the load of system strengthens.
In addition, if wll terminal uses near the base station, wll terminal can guarantee its mobility in the zone of a broad, and no matter the moving direction of wll terminal, if but the boundary vicinity of wll terminal between the base station uses, then the mobility of wll terminal is less.
That is to say that according to the zone at each wll terminal place, the used zone of wll terminal is different, causes a problem like this, promptly can not accurately monitor the mobility restriction of wll terminal.
Foregoing is cited at this as reference, is suitable for the explanation of additional or alternative details, feature and/or technical background in these contents of the place of quoting.
Summary of the invention
Therefore, one object of the present invention is to provide a kind of apparatus and method, is used to limit the mobility of wll terminal, wherein, the alignment features of the receiving element of wll terminal is limited to partly in the initial procedure of registration wll terminal to be used, thus the mobility of restriction wll terminal.
In order to realize above-mentioned purpose at least in part or all, a kind of wll terminal of mobility of the wll terminal that is used to limit the WLL system is provided, wherein wll terminal is wirelessly communicated by letter with a plurality of adjacent base stations, it comprises: a memory cell is used for storing the power of the received signal that receives from each base station when initial registration; With a controller, be used for each base station is provided for activating the activation scope of wll terminal and whether is included in the operation of controlling wll terminal in the activation scope according to the received signal power that receives from each base station.
In order to realize these advantages at least in part or all, a kind of method that is used to limit the wll terminal mobility also is provided, and it comprises: from the power of the received signal of adjacent a plurality of base stations input and respective base station the basis of initial registration wll terminal the activation scope is set; With determine whether to operate wll terminal by the power of the received signal that relatively receives and the activation scope of setting from each base station.
In order to realize these advantages at least in part or all, a kind of method that is used to limit the wll terminal mobility also is provided, it comprises: measure in certain time cycle from the power of the received signal of base station input; A part of calibration operation data are set to the activation scope on the power basis of the measurement of received signal; The information of registration wll terminal in the base station; Whether judgement belongs to the activation scope from the power of the received signal of the current input in base station; If belong to the activation scope with the power of received signal, then activate and operate wll terminal.
Additional advantages of the present invention, purpose and feature will be described in the following description, on the basis of examination following content, it is very clear that additional advantages of the present invention, purpose and feature will become concerning those skilled in the art, perhaps can know additional advantages of the present invention, purpose and feature from the practice of the present invention.Can as particularly point out in the appended claims realize and obtain objects and advantages of the present invention.
Description of drawings
Describe the present invention with reference to the accompanying drawings in detail, in the accompanying drawings, identical number designation is represented components identical, wherein:
Fig. 1 is the block diagram that illustrates according to the WLL system configuration of routine techniques;
Fig. 2 is the block diagram that the apparatus structure that is used to limit the wll terminal mobility according to the preferred embodiment of the invention is shown;
Fig. 3 is the chart that the calibration operation of wll terminal according to the present invention is shown;
Fig. 4 illustrates the chart that is set to a part of calibration operation data of active region among Fig. 3;
Fig. 5 illustrates the view that the wll terminal that is limited by Fig. 4 active region can utilize the zone;
Fig. 6 illustrates mobility by the view of the wll terminal of adjacent several base station limits; With
Fig. 7 is used to limit the flow chart of the method for wll terminal mobility according to the preferred embodiment of the invention.
Embodiment
Fig. 2 is the block diagram that the apparatus structure that is used to limit the wll terminal mobility according to the preferred embodiment of the invention is shown, and it comprises: base station 200a, 200b and 200c that wll terminal 100 with mobility limitation function and a plurality of and wll terminal 100 are adjacent.
Wll terminal 100 comprises: a memory cell 101 is used for when initial registration measuring from each intensity of the received signal of base station 200a, 200b and 200c transmission and stores them; A controller 102 is used for being provided for activating the active region of wll terminal and controlling corresponding operation by base station 200a, 200b and 200c; A RF module 103 is used to handle the RF signal that is used for carrying out with base station 200a, 200b and 200c radio communication; A modulator-demodulator 104 is used for the signal that demodulation is outwards transmitted by the RF signal or the modulation of 103 inputs of RF module; A keyboard unit 105 is used to import user's request signal; With a display unit 106, be used to show the mode of operation of wll terminal 100.
For wll terminal is normally operated, the firm power of received signal (power) must input controller.But, in this, be input to wll terminal received signal power can owing to various factors for example the distance between base station and the terminal change.
For the power (wherein the power of received signal is with the variable in distance between wll terminal and the base station) with received signal remains on a constant size and with this firm power input controller, wll terminal to received signal power when manufactured is carried out calibration operation.
Calibration operation refers to the gain of control at the antenna and the gain amplifier between the controller of wll terminal, even so that introduce the variable power of the received signal of wll terminal antenna, but the power that is input to the received signal of wll terminal controller still is maintained at constant.
Fig. 3 is the chart that the calibration operation of wll terminal according to the present invention is shown, and wherein, when the power of the received signal of wll terminal increased, the gain Be Controlled of gain-controlled amplifier reduced, thereby remains on the power of received signal constant.
The calibration operation storage of calculating by calibration operation in memory cell 101, then, relatively import wll terminal 100 received signal power and be stored in calibration operation data in the memory cell 101 with the power of the received signal of control wll terminal 100.
In brief, as follows according to the operation of WLL of the present invention system.
When wll terminal 100 is at first used, wll terminal 100 is measured from each power of the received signal of adjacent base station 200a, 200b and 200c transmission, and by these power of base station stored, will be sent to the initial registration that base station 200a, 200b and 200c are used for corresponding wll terminal 100 about the positional information of the information of wll terminal 100 and wll terminal then.
Then, calibrate after only a part is set to active region of operational data, in base station 200a, 200b and 200c, register at the power of the received signal by utilizing base station 200a, 200b and 200c.
If the received signal power of wll terminal 100 is in the scope of active region, then wll terminal 100 is activated and operation normally.Simultaneously, if the received signal power of wll terminal 100 not in active region, then wll terminal 100 is not activated.
Fig. 4 illustrates the chart that is set to a part of calibration operation data of active region among Fig. 3.Fig. 5 illustrates the view that can be utilized the zone by the wll terminal of the active region of Fig. 4 restriction, and Fig. 6 illustrates mobility by the view of the wll terminal of adjacent several base station limits.
Active region is set to by adding the value that variation that certain range of tolerable variance gives the received signal power value of measured wll terminal 100 obtains.The value of active region is determined by the controller 102 of wll terminal.
The received power of wll terminal changes according to the distance to the base station.Therefore, the received signal power of restriction wll terminal can be obtained and the identical effect of distance that limits between base station and the wll terminal.
Because wll terminal 100 can be measured the power of the received signal that receives from several base stations simultaneously, if restriction is used for the power of the received signal of adjacent base station simultaneously, as shown in Figure 6, active region is formed and the mobility of wll terminal also is limited in a zone, in this zone, all activated zone of base station overlaps each other.
Fig. 7 is the flow chart that is used to limit according to the method for preferred embodiment of the present invention wll terminal mobility.
Describe the operation of wll terminal in detail now with reference to Fig. 7.
At initial period (step S1), when wll terminal 100 at first was used, wll terminal 100 was measured from the power of the received signal of each adjacent base station 200a, 200b and 200c reception, and with these power storage (step S2) in memory.
The controller 102 of wll terminal is measured in certain time cycle from the excursion of the received signal power of each base station 200a, 200b and 200c reception, being provided with by adding certain range of tolerable variance gives the value of received signal power excursion acquisition as active region, and transmit about the information of wll terminal 100 and the position signalling of wll terminal 100 and give each base station 200a, 200b and 200c, be used for the initial limit (step S3) of wll terminal 100.
The active region in WLL zone 100 is set to common ground, and at common ground, the active region of base station 200a, 200b and 200c overlaps each other, so that the mobility of wll terminal 100 is limited.
Suppose and have three adjacent base stations that are used for wll terminal 100, wll terminal only activates in the zone, in this zone, the power of the received signal that receives from each base station 200a, 200b and 200c all is included in the active region of base station 200a, 200b and 200c.
That is to say the controller 102 of wll terminal judges whether the power of the received signal that receives from first base station is included in (step S4) in the active region that sets in advance.If the power of this received signal is not included in the active region, the controller mobility (step S5) that limits wll terminal by not activating wll terminal 100 then.
But if be included in the active region from the power of the received signal of first base station 200a input, then controller 102 judges from the power of the received signal of second base station 200b input whether be included in (step S6) in the active region.
Be not included in the active region that sets in advance if be input to the power of the received signal of wll terminal 100 from second base station 200b, then controller does not activate the mobility (step S5) of wll terminal 100 with restriction wll terminal 100.If the power of this received signal is included in the active region, then whether the controller judgement is included in (step S7) in the active region that sets in advance from the power of the received signal of the 3rd base station 200c input.
If be not included in the active region that sets in advance from the power of the received signal of the 3rd base station 200c input, then controller 102 does not activate wll terminal 100 (step S5).Simultaneously, if the power of this received signal is included in the active region, then controller 102 activates wll terminal 100 and carries out various general utility functionss (step S8).
Like this, the controller 102 of wll terminal only just activates wll terminal 100 when the power of the received signal that receives from the base station is included in all activated zone of base station.
If the power of first base station 200a and the power of second base station 200b are included in the active region of respective base station, but the power of the received signal of the 3rd base station 200c is not included in the active region, and then the controller 102 of wll terminal does not activate the mobility of wll terminal with the restriction wll terminal.
When activating, wll terminal 100 is carried out the general calling pattern, and form calling by the telephone number of user's input, so that the audio signal by receiver 107 inputs can be handled by modulator-demodulator 104 and RF module 103, and be transferred to counterpart terminal, simultaneously, the information that on display unit 106, shows the function executing of closing wll terminal.
As mentioned above, the present invention's apparatus and method of being used to limit the wll terminal mobility have following advantage.
That is to say, for example, measure the power of the received signal of each base station, and in adjacent a plurality of base stations, in the process of initial registration wll terminal active region is set, then, only when wll terminal was arranged in the part that the active region of all base stations overlaps each other, wll terminal can be operated.Therefore, can accurately limit the mobility of wll terminal.
In addition, because only by the mobility of utilization from the Power Limitation wll terminal of the received signal of adjacent base station input, thus do not need watch-dog, thus equipment installation cost can be reduced.
And, because limit the mobility of wll terminal by wll terminal self, thus system load reduced, and correspondingly can make the maximizing efficiency of system.
The foregoing description and advantage only are exemplary and do not have restriction purpose of the present invention.Instruction of the present invention can also easily be applied to the device of other types.Description of the invention is illustrative, does not have the purpose of restriction claims scope.For a person skilled in the art, many changes, change and variation are clearly.In claims, the term that device adds function is used to cover the structure as the described function of execution described here, and the structure of being not only equivalence, also is the structure of equivalence.
Claims (17)
1. the wll terminal of the mobility of a wll terminal that is used to limit the WLL system is wherein communicated by letter wll terminal and a plurality of adjacent base station radios, and this terminal comprises:
Memory cell, the power of the received signal that receives from each base station when being used to be stored in initial registration; With
Controller is used for each base station is provided for activating the activation scope of described wll terminal and whether is included in the operation of controlling wll terminal in the described activation scope according to the received signal power that receives from each base station.
2. terminal as claimed in claim 1, wherein said activation scope are to be provided with for the excursion of the received signal power that receives from each base station by adding certain range of tolerable variance.
3. terminal as claimed in claim 1, the part of the calibration operation data that wherein said activation scope is described wll terminal.
4. terminal as claimed in claim 1, wherein said controller is controlled like this: if the power of the received signal that is received by described wll terminal is included in the described activation scope, then activate described wll terminal, if and the power of received signal is not included in the described activation scope, then do not activate described wll terminal.
5. terminal as claimed in claim 1, wherein said controller inspection be from the power of the received signal of each base station, and and if only if wll terminal activates described wll terminal when being positioned at the scope that all activated scope overlaps each other.
6. method that is used to limit the mobility of wll terminal, it comprises:
From the power of the received signal of adjacent a plurality of base stations input and respective base station the basis of initial registration wll terminal the activation scope is set; With
Determine whether to operate wll terminal by the power of the received signal that relatively receives and the activation scope of described setting from each base station.
7. method as claimed in claim 6, the step of wherein said initial registration wll terminal comprises:
In certain time cycle, measure the power of the received signal that receives from each base station; With
At power that received signal is measured with in each base station, be provided for the activation scope of each base station on the basis of the described wll terminal of registration.
8. method as claimed in claim 6, the wherein said step of operating described wll terminal that determines whether comprises:
Whether inspection is included in the activation scope that sets in advance from the power of the received signal of a plurality of base stations input; With
If the power of received signal is included in the described activation scope of base station, then activate and operate described wll terminal.
9. method as claimed in claim 7 even wherein one of power of described received signal is not included in the described activation scope of base station, does not activate described wll terminal yet.
10. method as claimed in claim 6, the part of the calibration operation data that wherein said activation scope is a wll terminal.
11. method as claimed in claim 6, wherein said activation scope are to be provided with for the excursion of the received signal power of each base station by adding certain range of tolerable variance.
12. method as claimed in claim 6, wherein said activation scope are fixing values, this value no longer changes after described initial registration.
13. a mobility method that is used to limit wll terminal, it comprises:
In certain time cycle, measure from the power of the received signal of base station input;
A part of calibration operation data are set to the activation scope on the basis of the power of the received signal of described measurement;
The information of registration wll terminal in described base station;
Whether judgement belongs to described activation scope from the power of the received signal of the current input in described base station; With
If the described power of described received signal belongs to described activation scope, then activate and operate described wll terminal.
14. method as claimed in claim 13 further comprises:
If the power of described received signal is not included in the described activation scope, then do not activate described wll terminal.
15. method as claimed in claim 13 wherein exists one or two or a plurality of base station.
16. method as claimed in claim 15 if two or more base stations are wherein arranged, then is provided with the activation scope by the base station.
17. method as claimed in claim 15, if wherein there are two or more base stations, then check power, and and if only if described wll terminal when being positioned at the scope that all activated scope overlaps each other, then activates described wll terminal from the received signal of each base station.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR41720/2002 | 2002-07-16 | ||
| KR10-2002-0041720A KR100491885B1 (en) | 2002-07-16 | 2002-07-16 | WLL terminal having a mobility restrict function and controlling method therefore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1482822A CN1482822A (en) | 2004-03-17 |
| CN1277428C true CN1277428C (en) | 2006-09-27 |
Family
ID=34191988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031476732A Expired - Fee Related CN1277428C (en) | 2002-07-16 | 2003-07-16 | Automatic re-origination method for multimedia or voice call in mobile station |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100491885B1 (en) |
| CN (1) | CN1277428C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100384294C (en) | 2004-09-30 | 2008-04-23 | 华为技术有限公司 | Method for realizing roaming limitation |
| CN101527903B (en) * | 2008-03-04 | 2011-07-13 | 中兴通讯股份有限公司 | Method and system for automatic number allocation in wireless local loop system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5794141A (en) * | 1994-02-24 | 1998-08-11 | Gte Mobile Comm Servinc | Multi-mode communication network with handset-assisted cordless base station activation |
| US5570412A (en) * | 1994-09-28 | 1996-10-29 | U.S. West Technologies, Inc. | System and method for updating a location databank |
| US5568153A (en) * | 1995-05-30 | 1996-10-22 | Telefonaktiebolaget Lm Ericsson | Individually defined personal home area for subscribers in a cellular telecommunications network |
| EP1041849A1 (en) * | 1999-03-12 | 2000-10-04 | Sony International (Europe) GmbH | Protecting a predetermined area from disturbing usage of mobile terminals |
| US7043242B2 (en) * | 2001-01-31 | 2006-05-09 | Nokia Corporation | Measurement method and device for activating interfrequency handover in a wireless telecommunication network |
-
2002
- 2002-07-16 KR KR10-2002-0041720A patent/KR100491885B1/en not_active IP Right Cessation
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2003
- 2003-07-16 CN CNB031476732A patent/CN1277428C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| KR20040007073A (en) | 2004-01-24 |
| CN1482822A (en) | 2004-03-17 |
| KR100491885B1 (en) | 2005-05-30 |
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