Method and system for additional information transmission
An additional information and information source technology, applied in service signaling, communication supplementary services, etc., can solve the problems of wasting channel resources, voice or video distortion, and cannot be widely used, so as to ensure communication quality and reduce the impact of decoding accuracy Effect
Inactive Publication Date: 2009-05-06
ZTE CORP
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[0003] Method 1: Encapsulate the data into signaling according to the frame format of the air interface, remove the current service frame, and send the signaling; this method will seriously affect the basic service due to the discarding of too many service frames when additional information is transmitted frequently poor communication quality, resulting in distortions such as voice or video
[0004] Method 2: Use concurrent services to transmit additional information; this method needs to establish a dedicated channel to transmit additional information, wasting precious channel resources, especially when the source or destination of the additional information is a mobile terminal, this method is used to realize the transmission of additional information , the mobile terminal also needs to support concurrent services, and currently there are very few terminals supporting concurrent services, so this method cannot be widely used at present
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[0042] The implementation system of the present invention includes an additional information source and an additional information destination, the additional information source is used to receive service frames, or code the service information to generate a service frame, and is used to negotiate with the additional information destination to define the additional information service frame indication signaling, and generating additional information service frame indication signaling, and sending the additional information service frame indication signaling and carrying the additional information service frame to the additional information destination end; the additional information destination end is used to receive the additional information service frame indication signal command and carry additional information service frames, and forward or decode the recovery service frames; the service frame carrying additional information refers to the service frame carrying additional in...
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The present invention discloses a method which is used for transmitting additional information and comprises the following procedures: receiving service frame, or coding the service information for generating service frame; replacing the information at the secondary bit information of the service frame with additional information for obtaining the service frame carrying the additional information, and transmitting the service frame carrying the additional information; extracting the additional information in the received service frame carrying the additional information, filling 0 or 1 at the position of secondary bit for obtaining the resumed service frame, and retransmitting or decoding the resumed service frame. The invention discloses a system which is used for transmitting the additional information and comprises an additional information source, an information substitution module, an additional information target end and an information extraction module. The method and system according to the invention can complete the transmission of the additional information and guarantee the communication quality of the basic service without additionally establishing a signal channel.
Description
technical field [0001] The present invention relates to wireless communication technology, in particular to a method and system for transmitting additional information. Background technique [0002] In the mobile communication system, quite a few application scenarios require the mobile terminal to transmit some data different from the current service data type to the core network while running basic service types such as voice, video, and data. Data is additional information. For example: some types of positioning services require the terminal to transmit the information of the relevant base station to the core network at the same time as the voice call, as a parameter for positioning calculation; in some encrypted communication systems, in order to complete the encryption and Decryption requires regular transmission of synchronous data with the source for cryptographic synchronization. Currently used in the above application scenarios, the methods for implementing additi...
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IPC IPC(8): H04W4/20H04W4/16
Inventor 楼红伟蒋峄
Owner ZTE CORP