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A voice format notification method and device

A format and voice technology, applied in the field of voice format notification methods and devices, can solve the problems that the base station cannot know the voice format, cannot realize the normal transmission of voice service data, cannot know the voice format type of the service data, etc., so as to save the air interface overhead. Effect

Active Publication Date: 2022-04-19
CHENGDU TD TECH LTD
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Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that in the above-mentioned system supporting the two voice formats of AMR Over PDCP and VOIP, which voice format to use is negotiated between the terminal and the server, and the base station does not participate in the negotiation process. Therefore, The base station cannot know the voice format it uses before the service data is transmitted
During service data transmission, in order to reduce the resource overhead of the air interface, when the AMR Over PDCP voice format is used, the air interface only transmits the payload of the AMR, and does not transmit the indication information of the AMR Over PDCP voice format, so that the base station cannot know the location of the currently received service data. The voice format type is adopted, so that the normal transmission of voice service data cannot be realized

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  • A voice format notification method and device
  • A voice format notification method and device
  • A voice format notification method and device

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Embodiment Construction

[0026] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings and examples.

[0027] The voice format notification method realized by the embodiment of the present invention mainly includes:

[0028] Before transmitting service data for the user, the enhanced mobility management entity eMME notifies the serving base station of the user of the voice format type corresponding to the user by using a preset event process.

[0029] In order to save air interface overhead when using the AMR Over PDCP voice format (that is, the air interface only transmits the payload), and at the same time, it can also enable the base station to correctly process the received data during service data transmission. , when the preset event process is executed, the eMME notifies the user's serving base station of the voice format type corresponding ...

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Abstract

The present application discloses a voice format notification method and device, wherein the method includes: before transmitting service data for the user, the enhanced mobility management entity eMME uses a preset event process to notify the voice format type corresponding to the user to For the serving base station of the user, the event process includes a user establishment process, a user bearer establishment process, and a user bearer modification process. The technical solution disclosed in this application is applied to a system supporting multiple voice formats, which is beneficial to realize normal transmission of voice service data while saving air interface overhead.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a notification method and device in a voice format. Background technique [0002] Currently, in B-TrunC technology and LTE technology, the VOIP voice format is supported by default. In the total length of the VOIP format, the IP header accounts for 50% of the entire data length. [0003] In order to save wireless resources on the air interface, B-TrunC introduces the voice format of Adaptive Multi-Rate Coding (AMR Over PDCP) based on Packet Data Convergence Protocol, and transmits the payload of Adaptive Multi-Rate Coding (AMR) on the air interface. Only the AMR three sub-streams are transmitted. In this way, compared with the standard VOIP format data, 42 bytes are reduced, which can increase the utilization rate of air interface resources by 50%. [0004] In the process of realizing the present invention, the inventor found that in the above-mentioned s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W4/08H04W4/16H04W28/02H04W36/00H04W36/08
CPCH04W4/08H04W4/16H04W36/0033H04W36/08H04W28/0205
Inventor 熊途施荣荣周志宏陈迎刘海君
Owner CHENGDU TD TECH LTD