CN101959320B - Method and device for realizing compatibility of codec types among calling stations - Google Patents
Method and device for realizing compatibility of codec types among calling stations Download PDFInfo
- Publication number
- CN101959320B CN101959320B CN201010503789.4A CN201010503789A CN101959320B CN 101959320 B CN101959320 B CN 101959320B CN 201010503789 A CN201010503789 A CN 201010503789A CN 101959320 B CN101959320 B CN 101959320B
- Authority
- CN
- China
- Prior art keywords
- office
- landing
- acl
- scl
- decoding
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Telephonic Communication Services (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method for realizing the compatibility of codec types among calling stations, which comprises the following steps of: transmitting a selective codec list (SCL) to a backward station from a calling station; deleting incompatible codecs in an SCL transmitted by a forward station from an SCL of a middle station, and transmitting the codec-deleted SCL to the backward station; deleting incompatible codecs in the SCL transmitted by the forward station from an SCL of a landing station, and taking the codec-deleted SCL as an available codec list (ACL) of the landing station; deleting incompatible codecs in the ACL of the landing station from the SCL transmitted by the forward station by using the landing station, taking the codec-deleted ACL as the ACL of the forward station, and transmitting to the forward station; and after the middle station receives the ACL of the middle station transmitted by the backward station, deleting incompatible codecs in the ACL of the middle station from the SCL transmitted by the forward station, taking the codec-deleted ACL as the ACL of the forward station, and transmitting to the forward station. The method guarantees the smooth butt joint of network equipment of various manufactures. The invention also correspondingly discloses a device for realizing the compatibility of the codec types among the calling stations.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to implementation method and the device of code/decode type compatibility between a kind of calling station.
Background technology
At GSM (Global System for Mobile CommuNicatioNs, global system for mobile communications) network and WCDMA (WidebaNd Code DivisioN Multiple Access, Wideband Code Division Multiple Access (WCDMA)) in network, deposit due to GSM network and WCDMA network, after particularly GSM network realizes IPization, setting up a calling needs multiple network element to coordinate, the code/decode type of each network element support is also not quite similar, and this just occurs needing multiple code/decode type to coordinate the situation setting up a calling.For arrowband multi-speed encoding/decoding, various exist compatibility between code/decode type UMTS_AMR_2, FR_AMR, UMTS_AMR, OHR_AMR, HR_AMR.Such as there is compatibility of multi-rate in UMTS_AMR_2 and FR_AMR, OHR_AMR, HR_AMR; There is single-rate compatibility in UMTS_AMR_2 and UMTS_AMR; Compatibility of multi-rate is there is between FR_AMR, OHR_AMR, HR_AMR.Clearly do not provide the algorithm that a kind of each producer follows jointly in agreement, make the situation occurring that each plant equipment cannot smoothly dock.Illustrate, as shown in Figure 1, it is indefinite because agreement requires, manufacturer 2 take into account encoding and decoding compatibility when processing, and take it for granted that the equipment of the manufacturer 1 of forward office should be able to process this compatibility, so the encoding and decoding (ACL=FR_AMR returned, HR_AMR, SC=FR_AMR) not at the encoding and decoding list (SCL=UMTS_AMR_2 that manufacturer 1 supports, UMTS_AMR) in, and in fact manufacturer 1 does not support this compatibility, manufacturer 1 thinks that this situation should be processed by manufacturer 2 oneself, so there is the situation causing two vendor equipment docking failed because protocol requirement is indefinite.
Aim to provide the compatible algorithm of a kind of clear and definite encoding and decoding herein, make to utilize the compatibility between encoding and decoding to form TRFO (TraNscoder Free OperatioN, encode/decode-free operation), Shi Ge producer communication equipment can smoothly dock again.
Summary of the invention
The technical problem to be solved in the present invention is to provide implementation method and the device of code/decode type compatibility between a kind of calling station, effectively to solve code/decode type compatibling problem between calling station, ensures the level and smooth docking of each producer communication equipment.
Between calling station of the present invention, the implementation method of code/decode type compatibility is applied to the communication system having comprised and exhaled office, intermediate office and landing office, wherein the number of intermediate office is N, N be more than or equal to 0 integer, between calling station of the present invention, the implementation method of code/decode type compatibility comprises the steps:
Rise and exhale office to work to backward office transmission is described the selection encoding and decoding list SCL exhaling office;
After intermediate office receives the next SCL of forward office transmission, from the SCL that described intermediate office is supported, delete encoding and decoding incompatible in the next SCL of this forward office transmission, the SCL after deleting is transmitted to backward office;
After landing office receives the next SCL of forward office transmission, from the SCL that described landing office is supported, delete encoding and decoding incompatible in the next SCL of this forward office transmission, as the available encoding and decoding list ACL of described landing office;
Described landing office deletes encoding and decoding incompatible in the ACL of described landing office from the SCL that the transmission of this forward office comes, and as the ACL of this forward office, and transmits to this forward office;
After the ACL of the described intermediate office that the backward office transmission that intermediate office receives described intermediate office comes, encoding and decoding incompatible in the ACL of described intermediate office are deleted from the SCL that the forward office transmission of described intermediate office comes, as the ACL of the forward office of described intermediate office, and transmit to the forward office of described intermediate office;
Described backward office has referred to a rear office of exhaling office or intermediate office;
Described forward office refers to the previous office of intermediate office or landing office.
Further, between calling station of the present invention, the implementation method of code/decode type compatibility also comprises:
Landing office determines the selection encoding and decoding SC of described landing office from the ACL of described landing office;
Described landing office is determined the SC of its forward office, and is transmitted to its forward office delete the coding incompatible with the SC of described landing office in the ACL of its forward office after;
Described intermediate office is determined the SC of its forward office, and is transmitted to its forward office delete the coding incompatible with the SC of described intermediate office in the ACL of its forward office after.
Further, landing office determines the selection encoding and decoding SC of described landing office from the ACL of described landing office, and its scheme adopted comprises: the SC obtaining described landing office according to the characteristic of base station system.
Further, described landing office determines the SC of its forward office, and the scheme of employing comprises: described landing office gets the SC of the highest encoding and decoding of its medium priority as its forward office delete the coding incompatible with the SC of described landing office in the ACL of its forward office after;
Described intermediate office determines the SC of its forward office, and the scheme of employing comprises: described intermediate office gets the SC of the highest encoding and decoding of its medium priority as its forward office delete the coding incompatible with the SC of described intermediate office in the ACL of its forward office after.
Further, described intermediate office comprises tandem exchange or gateway exchange.
Further, the SCL after deletion is transmitted to backward office by initial address IAM message by described intermediate office.
Further, described intermediate office or landing office are by ACL or SC of application transport APM message to forward office transmission forward office.
Between calling station of the present invention, the implement device of code/decode type compatibility has comprised and has exhaled office, intermediate office and landing office, the number of wherein said intermediate office to be N, N be more than or equal to 0 integer;
Exhale office for working to backward office transmission is described the selection encoding and decoding list SCL exhaling office for described;
Described intermediate office is used for, and after receiving the next SCL of forward office transmission, deletes encoding and decoding incompatible in the next SCL of this forward office transmission, transmitted by the SCL after deleting to backward office from the SCL that described intermediate office is supported;
Described landing office is used for, and after receiving the next SCL of forward office transmission, deletes encoding and decoding incompatible in the next SCL of this forward office transmission, as the available encoding and decoding list ACL of described landing office from the SCL that described landing office is supported;
Described landing office also for, from this forward office transmission come SCL delete encoding and decoding incompatible in the ACL of described landing office, as the ACL of this forward office, and transmit to this forward office;
Described intermediate office also for, after the ACL of the described intermediate office that the backward office transmission receiving described intermediate office comes, encoding and decoding incompatible in the ACL of described intermediate office are deleted from the SCL that the forward office transmission of described intermediate office comes, as the ACL of the forward office of described intermediate office, and transmit to the forward office of described intermediate office;
Described backward office has referred to a rear office of exhaling office or intermediate office;
Described forward office refers to the previous office of intermediate office or landing office.
Further, described landing office also for, from the ACL of described landing office, determine the selection encoding and decoding SC of described landing office;
Described landing office also for, delete the coding incompatible with the SC of described landing office in the ACL of its forward office after, determine the SC of its forward office, and transmit to its forward office;
Described intermediate office also for, delete the coding incompatible with the SC of described intermediate office in the ACL of its forward office after, determine the SC of its forward office, and transmit to its forward office.
Further, described intermediate office comprises tandem exchange or gateway exchange.
Beneficial effect of the present invention is:
The compatible algorithm of encoding and decoding that the present invention follows jointly by providing a kind of each producer, make to use the network element of different code/decode type to form TRFO as far as possible when setting up calling, greatly improve voice quality, save the resource overhead of network element encoding and decoding conversion, simultaneously for the level and smooth docking of each vendor network equipment provides guarantee.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, is not construed as limiting the invention with enforcement one of the present invention.In the accompanying drawings:
Fig. 1 is the one failure special case occurred in existing network docking operation;
Fig. 2 is the implementation method schematic flow sheet of code/decode type compatibility between calling station of the present invention;
Fig. 3 is the schematic diagram of the inventive method first embodiment;
Fig. 4 is the schematic diagram of the inventive method second embodiment;
Fig. 5 is the implement device structural representation of code/decode type compatibility between calling station of the present invention.
Above in each figure, MSC-O has represented and has exhaled exchange, namely rises and exhales office; MSC-T represents and exhales exchange, i.e. landing office eventually; T represents tandem exchange; GMSC represents gateway exchange.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
Between calling station of the present invention, the implementation method of code/decode type compatibility is applied to the communication system having comprised and exhaled office, intermediate office and landing office, wherein the number of intermediate office to be N, N be more than or equal to 0 integer.
Fig. 2 is the implementation method schematic flow sheet of code/decode type compatibility between calling station of the present invention, and as shown in the figure, between calling station of the present invention, the implementation method of code/decode type compatibility specifically comprises the steps:
1, rise and exhale office to transmit this to backward office to work the selection encoding and decoding list SCL exhaling office;
2, after intermediate office receives the next SCL of forward office transmission, from the SCL of intermediate office support, delete encoding and decoding incompatible in the next SCL of this forward office transmission, the SCL after deleting is transmitted to backward office by initial address IAM message;
3, after landing office receives the next SCL of forward office transmission, from the SCL of landing office support, encoding and decoding incompatible in the next SCL of this forward office transmission are deleted, as the available encoding and decoding list ACL of landing office; Further, landing office, according to the characteristic of base station system, determines the selection encoding and decoding SC of landing office from the ACL of landing office;
4, landing office deletes encoding and decoding incompatible in the ACL of landing office from the SCL that the transmission of this forward office comes, and as the ACL of this forward office, and is transmitted to this forward office by application transport APM message; Further, landing office is got the SC of the highest encoding and decoding of its medium priority as its forward office, and is transmitted to its forward office by application transport APM message delete the coding incompatible with the SC of landing office in the ACL of its forward office after;
After the ACL of the intermediate office that the backward office transmission that 5, intermediate office receives intermediate office comes, encoding and decoding incompatible in the ACL of intermediate office are deleted from the SCL that the forward office transmission of intermediate office comes, as the ACL of the forward office of intermediate office, and transmitted by the forward office of application transport APM message to intermediate office; Further, intermediate office is got the SC of the highest encoding and decoding of its medium priority as its forward office, and is transmitted to its forward office by application transport APM message delete the coding incompatible with the SC of intermediate office in the ACL of its forward office after.
Backward office has referred to a rear office of exhaling office or intermediate office;
Forward office refers to the previous office of intermediate office or landing office.
Intermediate office comprises tandem exchange or gateway exchange.
Fig. 3 is the schematic diagram of the inventive method first embodiment, as shown in the figure, landing office received exhale the code/decode type of office or forward office and intermediate office code/decode type inconsistent time, TRFO can be realized by compatible algorithm of the present invention, specifically comprise the steps:
Step 101, landing office have received the coding/decoding information SCL1 exhaling office or forward office, and carried the coding/decoding information of exhaling office or forward office to support in SCL1, landing office preserves this coding/decoding information.
The encoding and decoding SCL-local of step 102, landing office SCL1 and landing office support holds consultation, and this negotiation supports that encoding and decoding are compatible.
Need in this step in SCL-local, delete the encoding and decoding do not supported in SCL1, this algorithm is supported compatible.As shown in the figure, SCL1=UMTS_AMR_2, UMTS_AMR, and SCL-local=FR_AMR, HR_AMR, because of UMTS_AMR_2 and FR_AMR, HR_AMR is compatibility of multi-rate, and UMTS_AMR and FR_AMR, HR_AMR is incompatible, so when speed is identical, the encoding and decoding that the encoding and decoding drawn by this compatible algorithm are necessarily supported in SCL-local, namely final landing office can encoding and decoding list ACL1 be FR_AMR, HR_AMR, assuming that obtain selecting encoding and decoding SC1 (Selected Codec) to be FR_AMR according to the characteristic of base station system BSS (Base Station System).
Step 103, determine landing office call setup can encoding and decoding be ACL1, the encoding and decoding of selection are after SC1, need to be obtained by compatible algorithm to have mail to coding/decoding information ACL2 and SC2 exhaling office or forward office.
Need in this step in SCL1, delete the encoding and decoding do not supported in ACL1, the result negotiated works as this available encoding and decoding list ACL2 exhaling office or forward office, and in ACL2, delete the encoding and decoding do not supported in SC1, and obtain from negotiation result the highest encoding and decoding of priority as exhale the selection encoding and decoding SC2 of office or forward office.As shown in the figure, ACL1=FR_AMR, HR_AMR, SC1=FR_AMR, and SCL1=UMTS_AMR_2, UMTS_AMR, because of UMTS_AMR_2 and FR_AMR, HR_AMR is compatibility of multi-rate, and UMTS_AMR and FR_AMR, HR_AMR is incompatible, so when speed is identical, the encoding and decoding do not supported in ACL1 are deleted from SCL1, the encoding and decoding of exhaling office or forward office to use are drawn, and this algorithm makes the encoding and decoding consulting out must be the encoding and decoding of exhaling office or forward office to support, because this process is supported compatible, so draw ACL2=UMTS_AMR_2, equally, because of SC1=FR_AMR, delete from ACL2 encoding-decoding process that SC1 do not support be support compatible, so draw SC2=UMTS_AMR_2.
As can be seen from said process, the coding/decoding information of landing office is all within the scope of the encoding and decoding of landing office support, and the coding/decoding information mailing to forward office is also all within the scope of the encoding and decoding of forward office, like this by the compatible algorithm of intermediate office, ensure that the level and smooth docking of different vendor's equipment, have and can ensure that calling is for TRFO calling, ensure that voice quality, decreases TC resource overhead to greatest extent.
Fig. 4 is the schematic diagram of the inventive method second embodiment, as shown in the figure, tandem exchange or gateway exchange received exhale the code/decode type of office or forward office and intermediate office code/decode type inconsistent time, also can with compatible algorithm realization TRFO, concrete steps are as follows:
Step 201, tandem exchange or gateway exchange have received the coding/decoding information SCL1 exhaling office or forward office, and carried the coding/decoding information of exhaling office or forward office to support in SCL1, tandem exchange or gateway exchange preserve this coding/decoding information.
The encoding and decoding SCL-local that step 202, tandem exchange or gateway exchange SCL1 and intermediate office (i.e. this tandem exchange or gateway exchange) are supported holds consultation, this negotiation supports that encoding and decoding are compatible, (to comprise intermediate office) before negotiation result is intermediate office all coding/decoding informations that node supports, this negotiation result is the SCL2 of the follow-up coding/decoding negotiation of user;
Need in this step in SCL-local, delete the encoding and decoding do not supported in SCL1, this algorithm is supported compatible certainly.As shown in the figure, SCL1=FR_AMR, HR_AMR, and SCL-local=UMTS_AMR_2, HR_AMR, because FR_AMR, HR_AMR and UMTS_AMR_2, HR_AMR are compatibility of multi-rate, so when speed is identical, show that the encoding and decoding of the follow-up coding/decoding negotiation of user are UMTS_AMR_2, HR_AMR by compatible algorithm.
The negotiation result SCL2 of step 203, tandem exchange or gateway exchange is used for follow-up coding/decoding negotiation, mails to backward office by IAM message.
If this backward office of step 204 is not landing office, then this backward office adopts the method similar with step 202, hold consultation with the encoding and decoding of SCL2 and this backward office support, this negotiation supports that encoding and decoding are compatible, negotiation result is the SCL3 of the follow-up coding/decoding negotiation of user, and backward office SCL3 being sent this backward office continues process;
If this backward office is landing office, then the encoding and decoding list of landing office SCL1 and landing office support is held consultation, this negotiation supports that encoding and decoding are compatible, namely in the encoding and decoding list of landing office support, the encoding and decoding do not supported in SCL1 are deleted, obtain landing office can encoding and decoding list, then obtain the selection encoding and decoding of landing office according to the characteristic of base station system; Then delete in SCL2 with landing office can the incompatible encoding and decoding of encoding and decoding list, obtain the available encoding and decoding list ACL1 of the forward office (i.e. described tandem exchange or gateway exchange) of this landing office, then in ACL1, the encoding and decoding incompatible with the selection encoding and decoding of this landing office are deleted, obtain a new encoding and decoding list, then get the selection encoding and decoding SC1 of the highest encoding and decoding of its medium priority as the forward office of this landing office.
Step 205, tandem exchange or gateway exchange receive the APM message from backward office, wherein carry negotiation result ACL1, SC1, and now tandem exchange or gateway exchange needs determine ACL2 and the SC2 message to forward office transmission by compatible algorithm.
Need in this step in SCL1, to delete by compatible algorithm the encoding and decoding do not supported in ACL1, and using these encoding and decoding as the ACL2 sent to forward office; And in ACL2, deleted the encoding and decoding do not supported in SC1 by compatible algorithm, and the highest for priority is mail to forward office as SC2.As shown in the figure, SCL1=FR_AMR, HR_AMR, and ACL1=UMTS_AMR_2, HR_AMR, because FR_AMR, HR_AMR and UMTS_AMR_2, HR_AMR are compatibility of multi-rate, so when speed is identical, draw ACL2=FR_AMR, HR_AMR by compatible algorithm.Because of SC1=UMTS_AMR_2, and FR_AMR, HR_AMR and UMTS_AMR_2 are compatibility of multi-rate, when speed is identical, draw FR_AMR, HR_AMR by compatible algorithm, because FR_AMR is higher than HR_AMR priority, so draw SC2=FR_AMR.
Fig. 5 is the structural representation of the implement device of code/decode type compatibility between the calling station of the present invention as a specific embodiment, as shown in the figure, between calling station of the present invention, the implement device of code/decode type compatibility has comprised and has exhaled office, intermediate office and landing office, the number of intermediate office to be N, N be more than or equal to 0 integer.
Rising exhales office for having transmitted the selection encoding and decoding list SCL exhaling office to backward office.
Intermediate office is used for, and after receiving the next SCL of forward office transmission, deletes encoding and decoding incompatible in the next SCL of this forward office transmission, transmitted by the SCL after deleting by initial address IAM message to backward office from the SCL of intermediate office support.
Landing office is used for, and after receiving the next SCL of forward office transmission, deletes encoding and decoding incompatible in the next SCL of this forward office transmission, as the available encoding and decoding list ACL of landing office from the SCL of landing office support; And, according to the characteristic of base station system, from the ACL of landing office, determine the selection encoding and decoding SC of landing office.
Landing office also for, from this forward office transmission come SCL delete encoding and decoding incompatible in the ACL of landing office, as the ACL of this forward office, and transmitted to this forward office by application transport APM message; Further, delete the coding incompatible with the SC of landing office in the ACL of its forward office after, get the SC of the highest encoding and decoding of its medium priority as its forward office, and transmitted to its forward office by application transport APM message.
Intermediate office also for, after the ACL of this intermediate office that the backward office transmission receiving this intermediate office comes, encoding and decoding incompatible in the ACL of this intermediate office are deleted from the SCL that the forward office transmission of this intermediate office comes, as the ACL of the forward office of this intermediate office, and transmitted by the forward office of application transport APM message to this intermediate office; And, delete the coding incompatible with the SC of this intermediate office in the ACL of its forward office after, get the SC of the highest encoding and decoding of its medium priority as its forward office, and transmitted to its forward office by application transport APM message.
Backward office has referred to a rear office of exhaling office or intermediate office, and forward office refers to the previous office of intermediate office or landing office.Intermediate office comprises tandem exchange or gateway exchange.
The foregoing is only preferred embodiment of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. the implementation method of code/decode type compatibility between calling station, is applied to the communication system having comprised and exhaled office, intermediate office and landing office, wherein the number of intermediate office to be N, N be more than or equal to 0 integer, it is characterized in that comprising the steps:
Rise and exhale office to work to backward office transmission is described the selection encoding and decoding list SCL exhaling office;
After intermediate office receives the next SCL of forward office transmission, from the SCL that described intermediate office is supported, delete encoding and decoding incompatible in the next SCL of this forward office transmission, the SCL after deleting is transmitted to backward office;
After landing office receives the next SCL of forward office transmission, from the SCL that described landing office is supported, delete encoding and decoding incompatible in the next SCL of this forward office transmission, as the available encoding and decoding list ACL of described landing office;
Described landing office deletes encoding and decoding incompatible in the ACL of described landing office from the SCL that the transmission of this forward office comes, and as the ACL of this forward office, and transmits to this forward office;
After the ACL of the described intermediate office that the backward office transmission that intermediate office receives described intermediate office comes, encoding and decoding incompatible in the ACL of described intermediate office are deleted from the SCL that the forward office transmission of described intermediate office comes, as the ACL of the forward office of described intermediate office, and transmit to the forward office of described intermediate office;
Described backward office has referred to a rear office of exhaling office or intermediate office;
Described forward office refers to the previous office of intermediate office or landing office;
Landing office determines the selection encoding and decoding SC of described landing office from the ACL of described landing office;
Described landing office is determined the SC of its forward office, and is transmitted to its forward office delete the coding incompatible with the SC of described landing office in the ACL of its forward office after;
Described intermediate office is determined the SC of its forward office, and is transmitted to its forward office delete the coding incompatible with the SC of described intermediate office in the ACL of its forward office after.
2. the method for claim 1, is characterized in that, landing office determines that from the ACL of described landing office the selection encoding and decoding SC of described landing office comprises: the SC obtaining described landing office according to the characteristic of base station system.
3. the method for claim 1, it is characterized in that, described landing office determines the SC of its forward office, comprising: described landing office gets the SC of the highest encoding and decoding of its medium priority as its forward office delete the coding incompatible with the SC of described landing office in the ACL of its forward office after;
Described intermediate office determines the SC of its forward office, comprising: described intermediate office gets the SC of the highest encoding and decoding of its medium priority as its forward office delete the coding incompatible with the SC of described intermediate office in the ACL of its forward office after.
4. the method for claim 1, is characterized in that, described intermediate office comprises tandem exchange or gateway exchange.
5. the method as described in claim 1 or 4, is characterized in that, the SCL after deletion is transmitted to backward office by initial address IAM message by described intermediate office.
6. the method as described in claim 1 or 4, is characterized in that, described intermediate office or landing office are by ACL or SC of application transport APM message to forward office transmission forward office.
7. the implement device of code/decode type compatibility between calling station, is characterized in that having comprised and exhales office, intermediate office and landing office, the number of wherein said intermediate office to be N, N be more than or equal to 0 integer;
Exhale office for working to backward office transmission is described the selection encoding and decoding list SCL exhaling office for described;
Described intermediate office is used for, and after receiving the next SCL of forward office transmission, deletes encoding and decoding incompatible in the next SCL of this forward office transmission, transmitted by the SCL after deleting to backward office from the SCL that described intermediate office is supported;
Described landing office is used for, and after receiving the next SCL of forward office transmission, deletes encoding and decoding incompatible in the next SCL of this forward office transmission, as the available encoding and decoding list ACL of described landing office from the SCL that described landing office is supported;
Described landing office also for, from this forward office transmission come SCL delete encoding and decoding incompatible in the ACL of described landing office, as the ACL of this forward office, and transmit to this forward office;
Described intermediate office also for, after the ACL of the described intermediate office that the backward office transmission receiving described intermediate office comes, encoding and decoding incompatible in the ACL of described intermediate office are deleted from the SCL that the forward office transmission of described intermediate office comes, as the ACL of the forward office of described intermediate office, and transmit to the forward office of described intermediate office;
Described backward office has referred to a rear office of exhaling office or intermediate office;
Described forward office refers to the previous office of intermediate office or landing office;
Described landing office also for, from the ACL of described landing office, determine the selection encoding and decoding SC of described landing office;
Described landing office also for, delete the coding incompatible with the SC of described landing office in the ACL of its forward office after, determine the SC of its forward office, and transmit to its forward office;
Described intermediate office also for, delete the coding incompatible with the SC of described intermediate office in the ACL of its forward office after, determine the SC of its forward office, and transmit to its forward office.
8. the implement device of code/decode type compatibility between calling station according to claim 7, is characterized in that:
Described intermediate office comprises tandem exchange or gateway exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010503789.4A CN101959320B (en) | 2010-10-12 | 2010-10-12 | Method and device for realizing compatibility of codec types among calling stations |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010503789.4A CN101959320B (en) | 2010-10-12 | 2010-10-12 | Method and device for realizing compatibility of codec types among calling stations |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101959320A CN101959320A (en) | 2011-01-26 |
| CN101959320B true CN101959320B (en) | 2015-01-28 |
Family
ID=43486321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010503789.4A Expired - Fee Related CN101959320B (en) | 2010-10-12 | 2010-10-12 | Method and device for realizing compatibility of codec types among calling stations |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101959320B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102726096B (en) * | 2011-12-27 | 2015-07-29 | 华为技术有限公司 | Coding/decoding negotiation method and equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1996970A (en) * | 2006-12-19 | 2007-07-11 | 中兴通讯股份有限公司 | A negotiation method for 3G video gateway multi-media decoding and encoding capability |
| CN101395882A (en) * | 2006-03-02 | 2009-03-25 | 艾利森电话股份有限公司 | Wideband codec negotiation |
| CN101822093A (en) * | 2007-08-14 | 2010-09-01 | 爱立信电话股份有限公司 | Improvements in or relating to codec negotiation and selection |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1983845B (en) * | 2006-04-16 | 2010-05-12 | 华为技术有限公司 | Method for adjusting up-link rate |
| CN101257715B (en) * | 2008-04-11 | 2011-06-22 | 中兴通讯股份有限公司 | Call method for enhancing call completing rate of pre-beep-page process |
-
2010
- 2010-10-12 CN CN201010503789.4A patent/CN101959320B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101395882A (en) * | 2006-03-02 | 2009-03-25 | 艾利森电话股份有限公司 | Wideband codec negotiation |
| CN1996970A (en) * | 2006-12-19 | 2007-07-11 | 中兴通讯股份有限公司 | A negotiation method for 3G video gateway multi-media decoding and encoding capability |
| CN101822093A (en) * | 2007-08-14 | 2010-09-01 | 爱立信电话股份有限公司 | Improvements in or relating to codec negotiation and selection |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101959320A (en) | 2011-01-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101001403B (en) | Expansing codeless conversion operation in system of personal mobile phone | |
| CN105722046A (en) | Implementation method for TD-LTE emergency communication system forced interposing/forced releasing service | |
| CN101222690B (en) | Code switching method, system and device | |
| CN101959320B (en) | Method and device for realizing compatibility of codec types among calling stations | |
| US20030236909A1 (en) | TFO-capable communication apparatus | |
| CN103944806A (en) | Data transmission method and system based on Wechat platform | |
| CN105794267B (en) | The communication means of multimedia broadcasting and multicast, device and system | |
| WO2017045115A1 (en) | Method and network device for establishing a wireless bearer | |
| CN104994054A (en) | Method of transmitting grouped data based on TD-SCDMA transparent transmission voice channel, and mobile terminal | |
| CN106576271A (en) | Method and device for adjusting voice coding rate | |
| CN101159442B (en) | Method and base station of enhancing voice quality | |
| CN101141682A (en) | Method of coding/decoding negotiation between wireless network and core network in mobile communication system | |
| CN102378293A (en) | Code division multiple access system and A17 interface compatibility realization method | |
| CN101835109B (en) | Business Initiator's method and terminal | |
| CN104424951A (en) | A method and device for realizing TFO and TrFO intercommunication conversion between different systems | |
| CN101309487A (en) | Voice frame processing method, system and base station | |
| CN101895838A (en) | Method for assigning messages in multi-media messaging service and system | |
| CN101621847B (en) | Method and terminal for acquiring 3G radio resource management information | |
| CN102340753B (en) | A kind of method and system realizing call priority access | |
| CN105635990A (en) | Method for transmitting short messages and status messages of LTE cluster group calling | |
| CN103650627A (en) | Method, device and system for speech communication | |
| CN105025577A (en) | Long term evolution (LTE) system uplink wireless resource control method and base station | |
| CN102413455B (en) | GTP-U (General Tunneling Protocol-User) data forwarding method | |
| CN101351028A (en) | Method and apparatus for down discontinuousness voice transmission base on IP Abis interface | |
| CN102316500B (en) | E-UTRAN system and task tracking thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180314 Address after: 518000, two 703A, COFCO business park, two Xian Xian Road, Xin'an, Shenzhen, Guangdong, Baoan District Patentee after: Shenzhen Fu Hai Sunshine Technology Co., Ltd. Address before: 518057 Nanshan District Guangdong high tech Industrial Park, South Road, science and technology, ZTE building, Ministry of Justice Patentee before: ZTE Corporation |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150128 Termination date: 20191012 |