CN1138426C - Phonetic channel exchange method for calling adaptation in mobile communication system - Google Patents
Phonetic channel exchange method for calling adaptation in mobile communication system Download PDFInfo
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- CN1138426C CN1138426C CNB011130172A CN01113017A CN1138426C CN 1138426 C CN1138426 C CN 1138426C CN B011130172 A CNB011130172 A CN B011130172A CN 01113017 A CN01113017 A CN 01113017A CN 1138426 C CN1138426 C CN 1138426C
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Abstract
The present invention relates to a phonetic channel exchange method for calling adaptation in a mobile communication system. Exchange networks are added in base station receiving and transmitting channel stations; a mobile communication system completes the authentication to a call mobile station and the determination to the position area of a called mobile station; then, the mobile communication system originates a call; information of the call and the called covering areas of the base station receiving and transmitting channel stations of mobile stations is obtained; the mobile communication system judges whether the information is in the same base station receiving and transmitting channel station or not; if true, the added exchange networks in the base station receiving and transmitting channel stations complete the calling adaptation of phonetic channels; if false, a mobile exchanger completes the calling adaptation of the phonetic channels. The present invention can reduce the circuity of telephone channels and data flow among son systems of the mobile communication system.
Description
The present invention relates to mobile communcations system, more specifically refer to a kind ofly realize in the mobile communcations system call proceeding supporting the base station to finish the method for voice channel exchange.
At present mobile communcations system (as: Golbal System for Mobile Communic-ations GSM, code division multiple access system CDMA, broadband CDMA system WCDMA, code division multiple access system CDMA2000 etc.) in, the exchange of voice channel is by mobile switch in the call proceeding, as mobile switching centre in the gsm system (MSC), core net in the WCDMA system (CN), mobile switching centre in the CDMA2000 system (MSC) finishes, even the calling and called travelling carriage is arranged in same base station (as gsm system base transceiver station BTS, base station node B in the WCDMA system, base transceiver station BTS in the CDMA2000 system) area of coverage, the voice channel exchange still need be finished by mobile switch.
As shown in Figure 1, travelling carriage calling travelling carriage handshaking procedure may further comprise the steps under the same base station overlay area of Golbal System for Mobile Communic-ations (GSM): 1) travelling carriage a (Msa) sends the international integrated service digital network number (MSISDN) of travelling carriage by base station system BSS (comprising base transceiver station BTS and base station controller BSC) to MSC, finishes processes such as channel request, service request, authentication request, channel assignment; 2) MSC initiates request to attaching position register/AUC (HLR/AUC), asks for mobile station roaming number (MSRN); 3) VLR Visitor Location Register (VLR) provides mobile station roaming number (MSRN) and is recycled to mobile switching centre (MSC); 4) mobile switching centre (MSC) analyzes mobile station roaming number (MSRN) and learns the called local subscriber of being, is sent as calling to VLR and sends information (S.F.I.C); 5) VLR sends out the paging request to MSC; 6) MSC sends the paging request and finds travelling carriage b (Msb) to base station system (BSS); 7) in MSC, finish the exchange of voice channel.
The exchange of voice channel is finished at MSC in the above-mentioned call proceeding.Can cause the alternative channel between BTS to BSC, BSC to MSC like this, and then increase data transfer throughput and propagation delay time between unnecessary subsystem, some transmission system particularly, as sts satellite transmission system, the introducing of time delay and error code is more, about 540 milliseconds of the time delay of double jump, thus the transmission link lease expenses increased.
The object of the present invention is to provide a kind of method that realizes voice channel exchange in the mobile communcations system call proceeding, utilize this method can reduce alternative channel, reduce data traffic and propagation delay time between the mobile system subsystem, and save the transmission link lease expenses.
To achieve these goals, a kind of method that realizes voice channel exchange in the mobile communcations system call proceeding provided by the present invention comprises the following steps: a, increases switching network in base transceiver station; B, mobile communcations system finish to the authentication of caller travelling carriage, to determining and called mobile station is initiated paging in called mobile station belonging positions district; C obtains the information of the travelling carriage calling and called both sides base transceiver station area of coverage of living in, and judges whether the calling and called both sides are positioned at same base transceiver station; D when judging that the calling and called both sides are positioned at same base transceiver station, then finishes continuing of voice channel by the switching network that increases in base transceiver station; E when judging that the calling and called both sides are positioned at the different base station transceiver station, then finishes continuing of voice channel by mobile switch.
In the method that voice channel exchanges in above-mentioned realization mobile communcations system call proceeding, when above-mentioned mobile communcations system is Golbal System for Mobile Communic-ations (GSM), among the step c, the information of obtaining the MO mobile origination base transceiver station area of coverage of living in is carried cell identification by MO mobile origination and number is reached, and judges by mobile switching centre or base transceiver station whether the calling and called travelling carriage is positioned at same base transceiver station service area.
In the method that voice channel exchanges in above-mentioned realization mobile communcations system call proceeding, when above-mentioned mobile communcations system is broadband CDMA system, among the step c, the information of obtaining the MO mobile origination base transceiver station area of coverage of living in is carried cell identification information by MO mobile origination and is reached, and judges by core switching network or base station whether the calling and called travelling carriage is positioned at same base station service area.
Owing to adopted above-mentioned method, when the calling and called both sides are positioned at same base transceiver station, finished the exchange of voice channel by the switching network that in base transceiver station, increases.Reduced the data traffic between alternative channel and mobile communcations system subsystem on the one hand, thereby reduced the lease expenses of transmission,, had bigger meaning especially for the big system of data traffics such as WCDMA, CDMA2000; Reduced time delay that unnecessary transmission causes on the other hand and, the exchange of the calling and called user's voice in the same BTS has been finished in BTS, avoided unnecessary double jump time delay the influence of voice quality.
Below in conjunction with drawings and Examples, method of the present invention is described in further detail.
Fig. 1 is the existing gsm system schematic flow sheet that mobile calls moves under same BTS;
Fig. 2 is a schematic flow sheet of the present invention;
The schematic flow sheet that Fig. 3 uses in gsm system for the present invention;
The schematic flow sheet that Fig. 4 uses in the WCDMA system for the present invention.
See also Fig. 2, a kind of method that realizes voice channel exchange in the mobile communcations system call proceeding provided by the present invention comprises the following steps:
A increases switching network in base transceiver station;
B, mobile communcations system finish to the authentication of caller travelling carriage, to determining and called mobile station is initiated paging in called mobile station belonging positions district;
C obtains the information of the travelling carriage calling and called both sides base transceiver station area of coverage of living in, and judges whether the calling and called both sides are positioned at same base transceiver station;
D when judging that the calling and called both sides are positioned at same base transceiver station, then finishes continuing of voice channel by the switching network that increases in base transceiver station;
E when judging that the calling and called both sides are positioned at the different base station transceiver station, then finishes continuing of voice channel by mobile switch.
Please again in conjunction with shown in Figure 3, when above-mentioned mobile communcations system is Golbal System for Mobile Communic-ations (GSM), MO mobile origination carries caller cell identification number, judges by mobile switching centre (MSC) or base transceiver station (BTS) whether the calling and called travelling carriage is positioned at same base transceiver station service area.
This method specifically may further comprise the steps: obtain travelling carriage calling and called both sides cell identification number 1.
The service area of BTS is determined by cell identification CGI.For omni-base station, a sub-district is only arranged, a corresponding cell identification number; Directional base station has the sub-district of respective numbers according to the number of sectors difference, corresponding a plurality of cell identification number.
In the flow process that continues of calling out, need to be positioned at the cell identification number of BTS service area, the sub-district that is currently located at definite travelling carriage according to the called mobile station of from VLR, obtaining.
Called mobile station cell identification number just can be obtained in existing call flow.
Caller travelling carriage cell identification number can be carried cell identification information when the message that base station system sends by travelling carriage and be obtained.2. judge by MSC or BTS whether the calling and called mobile subscriber is positioned at same BTS service area
Need to increase the tabulation of same BTS cell identification number among the MSC, according to the existing call flow process, after finishing caller travelling carriage authentication, called mobile station belonging positions district being determined and called mobile station initiated paging, MSC looks into relevant form, determine whether the current cell identification of calling and called mobile subscriber number belongs to same BTS, thereby determine whether the calling and called mobile subscriber is positioned at same BTS service area.
In order to reduce the impact to existing network, above-mentioned functions also can realize in BTS.3. support the BTS of inner voice channel function of exchange
BTS has switching network, the support voice channel switch, and structure of switching network (can be time interchanger or space switch) and capacity need be determined according to the statistics that the calling and called travelling carriage is positioned at same BTS service area possibility.
The implementation method comparative maturity of switching network can adopt network board, switching net etc., also can use for reference existing switching network among the MSC.4. whether be positioned at the judged result of same BTS service area according to the calling and called mobile subscriber, select suitable voice channel exchanged form
If the calling and called mobile subscriber is not positioned at same BTS service area, finish the function of exchange of voice channel according to current existing flow process, promptly finish the exchange of voice channel by MSC;
If the calling and called mobile subscriber is positioned at same BTS service area, the BTS that notice is supported the inner exchanging function finishes the function of exchange of voice channel by it.
In sum, the function that the voice channel clearing house has in Golbal System for Mobile Communic-ations (GSM) call proceeding is as follows: the information of carrying caller cell identification number during MO mobile origination; MSC increases the tabulation of same BTS cell identification number; MSC judges whether the current cell identification of calling and called mobile subscriber number belongs to same BTS, and perhaps this task is finished by BTS; BTS has switching network, can finish the voice channel function of exchange.
Please again in conjunction with shown in Figure 4, when above-mentioned mobile communcations system is broadband CDMA system (WCDMA), MO mobile origination carries caller cell identification information, judges by core switching network (CN) or base station (NodeB) whether the calling and called travelling carriage is positioned at same base station service area.
Claims (3)
1. a method that realizes voice channel exchange in the mobile communcations system call proceeding comprises the following steps:
A increases switching network in base transceiver station;
B, mobile communcations system finish to the authentication of caller travelling carriage, to determining and called mobile station is initiated paging in called mobile station belonging positions district;
C obtains the information of the travelling carriage calling and called both sides base transceiver station area of coverage of living in, and judges whether the calling and called both sides are positioned at same base transceiver station;
D when judging that the calling and called both sides are positioned at same base transceiver station, then finishes continuing of voice channel by the switching network that increases in base transceiver station;
E when judging that the calling and called both sides are positioned at the different base station transceiver station, then finishes continuing of voice channel by mobile switch.
2. a kind of method that realizes voice channel exchange in the mobile communcations system call proceeding as claimed in claim 1, it is characterized in that, when above-mentioned mobile communcations system is Golbal System for Mobile Communic-ations (GSM), among the step c, the information of obtaining the MO mobile origination base transceiver station area of coverage of living in is carried cell identification by MO mobile origination and number is reached, and judges by mobile switching centre or base transceiver station whether the calling and called travelling carriage is positioned at same base transceiver station service area.
3. a kind of method that realizes voice channel exchange in the mobile communcations system call proceeding as claimed in claim 1, it is characterized in that, when above-mentioned mobile communcations system is broadband CDMA system, among the step c, the information of obtaining the MO mobile origination base transceiver station area of coverage of living in is carried cell identification information by MO mobile origination and is reached, and judges by core switching network or base station whether the calling and called travelling carriage is positioned at same base station service area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011130172A CN1138426C (en) | 2001-05-30 | 2001-05-30 | Phonetic channel exchange method for calling adaptation in mobile communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011130172A CN1138426C (en) | 2001-05-30 | 2001-05-30 | Phonetic channel exchange method for calling adaptation in mobile communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1388711A CN1388711A (en) | 2003-01-01 |
| CN1138426C true CN1138426C (en) | 2004-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB011130172A Expired - Lifetime CN1138426C (en) | 2001-05-30 | 2001-05-30 | Phonetic channel exchange method for calling adaptation in mobile communication system |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101141515B (en) * | 2006-09-07 | 2011-06-22 | 中兴通讯股份有限公司 | Method of eliminating speech channel circuity in value-added service |
| CN101431812B (en) * | 2007-11-09 | 2010-09-22 | 华为技术有限公司 | Business processing method, system and equipment for circuit commutative field |
| CN101801105A (en) * | 2009-02-10 | 2010-08-11 | 华为技术有限公司 | Method, device and system for establishing local exchange |
| CN101801053B (en) * | 2009-02-11 | 2013-03-13 | 华为技术有限公司 | Method for removing local exchange, core network equipment and base station subsystem |
| CN102045871B (en) * | 2009-10-23 | 2015-08-12 | 中兴通讯股份有限公司 | Local switching communication method and system |
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2001
- 2001-05-30 CN CNB011130172A patent/CN1138426C/en not_active Expired - Lifetime
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| CN1388711A (en) | 2003-01-01 |
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