CN113301215A - Method for negotiating specific encoding and decoding based on AS (application server) cooperative terminal - Google Patents
Method for negotiating specific encoding and decoding based on AS (application server) cooperative terminal Download PDFInfo
- Publication number
- CN113301215A CN113301215A CN202110495365.6A CN202110495365A CN113301215A CN 113301215 A CN113301215 A CN 113301215A CN 202110495365 A CN202110495365 A CN 202110495365A CN 113301215 A CN113301215 A CN 113301215A
- Authority
- CN
- China
- Prior art keywords
- specific
- calling
- terminal
- service scene
- call request
- 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.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M7/00—Arrangements for interconnection between switching centres
- H04M7/006—Networks other than PSTN/ISDN providing telephone service, e.g. Voice over Internet Protocol (VoIP), including next generation networks with a packet-switched transport layer
- H04M7/0072—Speech codec negotiation
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention provides a method for negotiating specific coding and decoding based on an AS (application server) cooperative terminal, which comprises the following steps: s100, call initiation: a calling terminal initiates a call request and sends call request information to an AS; s200, calling request information identification: the AS judges the service scene, carries out specific identification on the call request information and sends the call request information to the called terminal; s300, call request information identification: the called terminal identifies the call request information of the specific identifier, performs corresponding processing work, rings to generate ringing response information at the same time, and sends the ringing response information to the AS; s400, response information identification: the AS judges the service scene, identifies the ringing response information and sends the ringing response information to the calling terminal; s500, response information identification: the calling terminal identifies the ringing response information of the specific identifier and carries out corresponding processing work. The invention improves the success rate of the encrypted call, and simultaneously realizes the automatic judgment by the network and the communication by adopting the specific coding and decoding in cooperation with the terminal.
Description
Technical Field
The invention relates to the field of network technology and safety, in particular to a method for negotiating specific coding and decoding based on an AS (application server) cooperation terminal.
Background
The dialing interface of the currently adopted 2G encrypted terminal equipment has two sending keys of 'bright' and 'secret', a calling user selects the encrypted call, the terminal sends an encrypted call request message to the encrypted call platform when calling, the encrypted call platform receives the encrypted call request message and sends an encrypted call notification message to a called terminal, the called terminal receives the encrypted call notification message and indicates that the call is the encrypted call, the calling terminal and the called terminal are switched to the encrypted call for communication after the call is answered, the voice is a real-time service, the messages are non-real-time services, the paths of the short messages are different, the encrypted call notification message is sent by the encrypted call platform, the time when the called terminal successfully receives the messages is difficult to ensure, for example, a mobile switch receives a downlink message within a time period from the time when the voice call initiates paging and establishes a service channel, a failure is returned resulting in a failure to establish the secret session.
At the same time, media codec offer/answer negotiation is mainly carried out between a calling terminal and a called terminal of the encrypted communication related to the VoLTE network through an SDP protocol, the calling terminal simultaneously carries a plurality of supported optional codecs through the SDP offer, one codec is selected by the called terminal according to the self support condition and is returned to the calling terminal as an SDP answer, so that end-to-end media codec negotiation is completed, although the end-to-end media codec negotiation can be completed by the mode, the calling terminal has no way to guide the called terminal to select the specific codec in the communication process.
Disclosure of Invention
In view of the above-mentioned deficiencies of the prior art, the present invention aims to provide a method for negotiating a specific codec based on an AS cooperative terminal, so AS to ensure the success rate of a secret call and realize automatic judgment by a network and communication by using the specific codec in cooperation with the terminal.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for negotiating specific coding and decoding based on AS cooperative terminal includes the following steps:
s100, call initiation: a calling terminal initiates a call request, and sends call request information composed of a calling number, a called number, SDP offer including a plurality of coding and decoding options including specific coding and decoding and the like to an AS through a calling network;
s200, calling request information identification: the AS judges the service scene, carries out specific identification on the call request information and sends the call request information with the specific identification to a called terminal through a called network;
s300, call request information identification: the called terminal identifies the call request information of the specific identifier, performs corresponding processing work, generates ringing response information by ringing at the same time, and sends the ringing response information to the AS through the called network;
s400, response information identification: the AS judges the service scene, identifies the ringing response information and sends the ringing response information to the calling terminal through the calling network;
s500, response information identification: the calling terminal identifies the ringing response information of the specific identifier and carries out corresponding processing work.
In a preferred embodiment of the present invention, in step S200, the specific logic of the AS specifically identifying the call request information is AS follows: and the AS judges the service scene according to the information of the calling number/number segment combination, the called number/number segment combination, the access network element and the like, inserts a specific identifier into the call request information if the service scene is accordant with the specific service scene, and directly sends the call request information to the called terminal if the service scene is not accordant with the specific service scene.
In a preferred embodiment of the present invention, in step S300, the processing of the called terminal after receiving the call request message with the specific identifier includes using the specific codec as an SDP answer to return to the calling terminal, performing special processing on the communication content, performing media delivery with the agreed specific codec, and indicating that the call employs the specific codec processing in a certain striking manner on the UI interface of the called terminal.
In a preferred embodiment of the present invention, in step S400, the specific logic of the AS specifically identifying the ringing response information is: and the AS judges the service scene according to the information of the calling number/number segment combination, the called number/number segment combination, the access network element and the like, inserts a specific identifier into the ringing response information if the service scene is accordant with the specific service scene, and directly sends the ringing response information to the calling terminal if the service scene is not accordant with the specific service scene.
In a preferred embodiment of the present invention, in step S500, the processing of the calling terminal receiving the ringing response message with the specific identifier includes performing special processing on the communication content, performing media delivery with an agreed specific codec, and indicating that the call employs the specific codec in a certain striking manner on the UI interface of the calling terminal.
In a preferred embodiment of the present invention, the calling network and the called network both use VoLTE networks.
Through the technical scheme, the invention has the following beneficial effects:
(1) the invention adopts 4G secret call to improve service use perception, the terminal dialing interface only has a single sending key, a user does not need to distinguish the plain call and the secret call, the terminal is not informed of secret entering in a short message mode, and the success rate of the secret call is improved;
(2) the invention is realized based on the VoLTE network, and realizes that the network automatically judges and cooperates with the terminal to adopt specific coding and decoding for communication without user intervention by introducing the AS to cooperate with the 4G terminal to carry out coding and decoding negotiation, and simultaneously realizes the 'channel following' transmission of the service control information and the voice call signaling, thereby ensuring the real-time property and the reliability of the service control information.
Drawings
FIG. 1 is a flow chart of a method for negotiating a specific codec based on an AS cooperative terminal according to the present invention;
fig. 2 is a flowchart illustrating a specific real-time case of a method for negotiating specific codec based on an AS cooperative terminal according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
AS shown in fig. 1, a method for negotiating a specific codec based on an AS cooperative terminal according to the present invention is shown, which includes the following steps:
s100, call initiation: a calling terminal initiates a call request, and sends call request information composed of a calling number, a called number, SDP offer including a plurality of coding and decoding options including specific coding and decoding and the like to an AS through a calling network;
specifically, when a user signs up AS and calls, the AS is triggered, a calling terminal generates a corresponding SIP call message and transmits the SIP call message to the AS, the SIP is an application layer signaling control protocol and is used for creating, modifying and releasing sessions of one or more participants, the sessions can be Internet multimedia conferences, IP phones or multimedia distribution, the participants of the sessions can communicate by multicast, mesh unicast or a mixture of the two, and the SIP information is divided into two types: request information and response information. The request information is information that the SIP client sends to the server in order to activate a specific operation, and the SIP response information is used to respond to the request information and indicate the success or failure status of the call.
S200, calling request information identification: the AS judges the service scene, carries out specific identification on the call request information and sends the call request information with the specific identification to a called terminal through a called network;
specifically, the AS judges a service scene according to the information of the calling number/number segment combination, the called number/number segment combination, the access network element and the like, inserts a specific identifier into the calling message if the service scene is in accordance with the specific service scene, and directly sends the calling request information to the called terminal if the service scene is not in accordance with the specific service scene.
S300, call request information identification: the called terminal identifies the call request information of the specific identifier, performs corresponding processing work, generates ringing response information by ringing at the same time, and sends the ringing response information to the AS through the called network;
specifically, the processing work of the called terminal after receiving the call request information of the specific identifier comprises the steps of using a specific codec as an SDP answer to return to the calling terminal, performing special processing on communication content, carrying out media transmission by using the agreed specific codec, and indicating that the call adopts the specific codec processing in a certain striking way on a UI interface of the called terminal;
s400, response information identification: the AS judges the service scene, identifies the ringing response information and sends the ringing response information to the calling terminal through the calling network;
specifically, the AS judges a service scene according to the information of the calling number/number segment combination, the called number/number segment combination, the access network element and the like, inserts a specific identifier into the ringing response information if the service scene is in accordance with the specific service scene, and directly sends the ringing response information to the calling terminal if the service scene is not in accordance with the specific service scene;
s500, response information identification: the calling terminal identifies the ringing response information of the specific identifier and carries out corresponding processing work;
specifically, the processing work of the calling terminal when receiving the ringing response information of the specific identifier comprises the steps of carrying out special processing on communication content, carrying out media transmission by using appointed specific coding and decoding, and indicating that the calling adopts specific coding and decoding processing in a certain striking mode on a calling terminal UI interface, wherein the calling personnel can conveniently know the current conversation state by adopting the specific coding and decoding processing mode on the calling terminal UI interface;
specifically, the calling network and the called network both adopt a VoLTE network, so that the transmission quality of signals is ensured, and the disconnection rate is reduced.
The present invention is further explained by a specific real-time case, as shown in fig. 2, which shows a specific flowchart of an embodiment of the present invention, specifically:
the first process comprises call request information processing: firstly, a calling terminal initiates a call, an Invite message is sent to a calling VoLTE network, wherein the Invite message comprises a called number, a calling number and an SDP offer, the SDP offer comprises a plurality of selectable codecs including a specific codec, such AS AMR-NB, AMR-WB, EVS, G.711 and the like, then the calling VoLTE network triggers a calling AS, the Invite message is forwarded to the calling AS, the calling AS analyzes the calling and called numbers, judges that the call conforms to a specific service scene, if the calling AS conforms to the specific service scene, the calling AS sends the Invite message to the calling VoLTE network, the calling VoLTE network is connected with the called VoLTE network, the Invite message is sent to the called AS through the called VoLTE network, the called AS analyzes the calling and called numbers, judges that the call conforms to the specific service scene, if the call conforms to the specific identifier is inserted into the Invite message, the Invite message with the specific identifier is sent to the called terminal through the called VoLTE network, and the specific identifier is identified by the called terminal, corresponding processing is carried out, a specific codec is selected as an SDP answer, a 183 response message is returned, and meanwhile, the called terminal rings and returns a 180 response message;
and a second process of response message processing: the called VoLTE network forwards the 183 response to the called AS, the 183 response is forwarded to the calling VoLTE network in the original way, the call returns to the calling terminal through the calling VoLTE network, meanwhile, the called VoLTE network forwards the 180 response to the called AS, the called AS analyzes the calling and called numbers, judges that the call conforms to a specific service scene, if the call conforms to the specific service scene, the called AS sends an Invite message to the called VoLTE network, then the called VoLTE network sends the 180 response to the calling AS through the calling VoLTE network, the calling AS analyzes the calling and called numbers, judges that the call conforms to the specific service scene, if the call conforms to the specific service scene, a specific identifier is inserted into the 180 response message, the 180 response with the specific identifier is sent to the calling terminal through the calling VoLTE network, and the calling terminal identifies the specific identifier and performs corresponding processing.
Compared with the prior art, the invention has the following advantages:
(1) the invention adopts 4G secret call to improve service use perception, the terminal dialing interface only has a single sending key, a user does not need to distinguish the plain call and the secret call, the terminal is not informed of secret entering in a short message mode, and the success rate of the secret call is improved;
(2) the invention is realized based on the VoLTE network, and realizes that the network automatically judges and cooperates with the terminal to adopt specific coding and decoding for communication without user intervention by introducing the AS to cooperate with the 4G terminal to carry out coding and decoding negotiation, and simultaneously realizes the 'channel following' transmission of the service control information and the voice call signaling, thereby ensuring the real-time property and the reliability of the service control information.
While the invention has been described with respect to a preferred embodiment, it will be understood by those skilled in the art that the foregoing and other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention. Those skilled in the art can make various changes, modifications and equivalent arrangements, which are equivalent to the embodiments of the present invention, without departing from the spirit and scope of the present invention, and which may be made by utilizing the techniques disclosed above; meanwhile, any changes, modifications and variations of the above-described embodiments, which are equivalent to those of the technical spirit of the present invention, are within the scope of the technical solution of the present invention.
Claims (6)
1. A method for negotiating specific coding and decoding based on AS cooperative terminal is characterized by comprising the following steps:
s100, call initiation: a calling terminal initiates a call request, and sends call request information composed of a calling number, a called number, SDP offer including a plurality of coding and decoding options including specific coding and decoding and the like to an AS through a calling network;
s200, calling request information identification: the AS judges the service scene, carries out specific identification on the call request information and sends the call request information with the specific identification to a called terminal through a called network;
s300, call request information identification: the called terminal identifies the call request information of the specific identifier, performs corresponding processing work, generates ringing response information by ringing at the same time, and sends the ringing response information to the AS through the called network;
s400, response information identification: the AS judges the service scene, identifies the ringing response information and sends the ringing response information to the calling terminal through the calling network;
s500, response information identification: the calling terminal identifies the ringing response information of the specific identifier and carries out corresponding processing work.
2. The method for negotiating specific codec based on AS cooperative terminal according to claim 1, wherein in step S200, the specific logic of the AS performing specific identification on the call request information is: and the AS judges the service scene according to the information of the calling number/number segment combination, the called number/number segment combination, the access network element and the like, inserts a specific identifier into the call request information if the service scene is accordant with the specific service scene, and directly sends the call request information to the called terminal if the service scene is not accordant with the specific service scene.
3. The method AS claimed in claim 1, wherein in step S300, the processing of the called terminal after receiving the call request message with the specific identifier includes using the specific codec AS an SDP answer to return to the calling terminal, performing special processing on communication content, performing media delivery with the agreed specific codec, and indicating that the call employs the specific codec in a certain striking manner on a UI interface of the called terminal.
4. The method for negotiating specific codec based on AS cooperative terminal according to claim 1, wherein in step S400, the specific logic of the AS performing specific identification on the ringing response information is: and the AS judges the service scene according to the information of the calling number/number segment combination, the called number/number segment combination, the access network element and the like, inserts a specific identifier into the ringing response information if the service scene is accordant with the specific service scene, and directly sends the ringing response information to the calling terminal if the service scene is not accordant with the specific service scene.
5. The AS cooperative terminal-based method for negotiating specific codec AS claimed in claim 1, wherein in step S500, the processing of the calling terminal receiving the ringing response message with specific identifier includes performing specific processing on the communication content, performing media delivery with agreed specific codec, and indicating that the call employs specific codec processing in a striking manner on the UI interface of the calling terminal.
6. The AS cooperative terminal-based method for negotiating specific codec AS claimed in claim 1, wherein the calling network and the called network both use VoLTE networks.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110495365.6A CN113301215B (en) | 2021-05-07 | 2021-05-07 | Method for negotiating specific encoding and decoding based on AS (application server) cooperative terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110495365.6A CN113301215B (en) | 2021-05-07 | 2021-05-07 | Method for negotiating specific encoding and decoding based on AS (application server) cooperative terminal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113301215A true CN113301215A (en) | 2021-08-24 |
| CN113301215B CN113301215B (en) | 2022-05-31 |
Family
ID=77321089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110495365.6A Active CN113301215B (en) | 2021-05-07 | 2021-05-07 | Method for negotiating specific encoding and decoding based on AS (application server) cooperative terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113301215B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257988A1 (en) * | 2021-06-09 | 2022-12-15 | 中国电信股份有限公司 | Call establishment method, application server system, terminal, communication network device, and system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101052154A (en) * | 2007-05-11 | 2007-10-10 | 华为技术有限公司 | IP multimedia sub system and its coding and decoding switching control method |
| CN101282574A (en) * | 2007-04-05 | 2008-10-08 | 华为技术有限公司 | Communication system, equipment and multimedia calling method |
| CN101702710A (en) * | 2009-11-03 | 2010-05-05 | 中兴通讯股份有限公司 | Control method of multimedia color ring back tone service in multimedia subsystem domain and system |
| JP2016054336A (en) * | 2014-09-02 | 2016-04-14 | 沖電気工業株式会社 | Codec arbitration device and program |
| CN106791241A (en) * | 2016-12-09 | 2017-05-31 | 中国联合网络通信集团有限公司 | A kind of coding/decoding negotiation method and call controller |
| CN111756933A (en) * | 2019-03-28 | 2020-10-09 | 华为技术有限公司 | Method for playing multimedia color vibration and color ring and application server |
-
2021
- 2021-05-07 CN CN202110495365.6A patent/CN113301215B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101282574A (en) * | 2007-04-05 | 2008-10-08 | 华为技术有限公司 | Communication system, equipment and multimedia calling method |
| CN101052154A (en) * | 2007-05-11 | 2007-10-10 | 华为技术有限公司 | IP multimedia sub system and its coding and decoding switching control method |
| CN101702710A (en) * | 2009-11-03 | 2010-05-05 | 中兴通讯股份有限公司 | Control method of multimedia color ring back tone service in multimedia subsystem domain and system |
| JP2016054336A (en) * | 2014-09-02 | 2016-04-14 | 沖電気工業株式会社 | Codec arbitration device and program |
| CN106791241A (en) * | 2016-12-09 | 2017-05-31 | 中国联合网络通信集团有限公司 | A kind of coding/decoding negotiation method and call controller |
| CN111756933A (en) * | 2019-03-28 | 2020-10-09 | 华为技术有限公司 | Method for playing multimedia color vibration and color ring and application server |
Non-Patent Citations (2)
| Title |
|---|
| 3GPP: "3rd Generation Partnership Project;Technical Specification Group Services and System Aspects;Media handling and Quality aspects of SRVCC;(Release 14)", 《DRAFT3 3GPP TR 26.916 V1.1.0 (2016-01)》 * |
| ERICSSON LM: "Identified problems with current SRVCC procedures", 《3GPP TSG-SA4 MEETING #86 S4-151283》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022257988A1 (en) * | 2021-06-09 | 2022-12-15 | 中国电信股份有限公司 | Call establishment method, application server system, terminal, communication network device, and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113301215B (en) | 2022-05-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2107714B1 (en) | Method and apparatus for implementing a multimedia ring back tone service and multimedia caller identification service | |
| EP1747692B1 (en) | Handling an audio conference related to a text-based message | |
| US8150334B2 (en) | Methods and apparatus for push to talk type service | |
| US8036608B2 (en) | Apparatus and method providing push to talk over cellular (PoC) dynamic service options | |
| CN106034185B (en) | Method for responding to call request and electronic equipment | |
| CN108881783A (en) | Realize method and apparatus, computer equipment and the storage medium of multi-conference | |
| CN101112071A (en) | Image exchange for image-based push-to-talk user interface | |
| US20090003585A1 (en) | Communication Method, Device And System For Implementing Scheduling Communication Service | |
| WO2012113193A1 (en) | Method and system for implementing multiparty call service | |
| US8391908B2 (en) | Communication systems | |
| CN101459880B (en) | Session request method and system for establishing temporary group call | |
| CN113301215B (en) | Method for negotiating specific encoding and decoding based on AS (application server) cooperative terminal | |
| KR100625123B1 (en) | Method and System for Implementing of Push-to-Talk Service by Using SIP and SDB for Use in Mobile Data Communication Network | |
| CN102316228B (en) | The methods, devices and systems of attendant intrusion call are realized in central office service | |
| CN102664863B (en) | Method, device, and system for realizing call waiting by user equipment | |
| KR100660739B1 (en) | Alternation image service method for call waiting occurrence in telecommunication system | |
| EP2736212B1 (en) | Method and system for implementing broadcast group call in click to dial service | |
| CN101197888B (en) | Method and system for implementing hang-up selection when non-intelligent SIP terminal call waiting | |
| KR100666959B1 (en) | System and method providing multiple session in push to talk system | |
| CN102438084B (en) | Method and system for implementing telephone conference | |
| KR100675166B1 (en) | Method for processing of binary SIP message in wireless communication system | |
| CN101945504B (en) | Coloring ring switching method, multimedia coloring ring server and user equipment | |
| CN101453702B (en) | Method, system and equipment for providing inter-session information | |
| KR100963010B1 (en) | System and method for video communication service based on sip using smart card | |
| KR100493100B1 (en) | Method and apparatus for supporting voice over ip in a mobile communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |