Processing method for realizing forcibly inserting signaling into voice conversation
A processing method and voice call technology, applied in multiplex communication, electrical components, time-division multiplex system, etc. order loss and other issues
Active Publication Date: 2011-01-19
天津七一二移动通信有限公司
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Problems solved by technology
However, in the existing shunting equipment, because the equipment is an analog system, etc., the shunting signaling transmission and the voice call often cannot be carried out synchronously, so that the shunting signaling cannot be received while sending the voice. Therefore, the shunting signaling may be caused. The order is lost, and it will cause trouble in the use of plane shunting equipment
Method used
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Embodiment Construction
[0020] Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings:
[0021] The invention is a processing method for realizing the forced insertion of signaling into a voice call. It is mainly suitable for handheld devices, station platform equipment and district chief station equipment of the wireless plane shunting system, and the equipment works in half-duplex state.
[0022] In this embodiment, the wireless channel in the air adopts time division multiple access technology, and the time slot allocation of the wireless channel in the air is stipulated as figure 1 As shown, each 1S is a frame, and each frame includes 10 time slots, and each time slot is divided into a voice time slot of 55ms, a data time slot of 35ms and a guard time of 5ms, wherein the guard time of 5ms is divided into Used to protect PA (Power Amplifier) power up and down and signal propagation delay.
[0023] The wireless data modulation adopts 4FS...
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The invention relates to a processing method for realizing forcibly inserting a signaling into a voice conversation. The method comprises the following steps: firstly, compressing voice in a digital mode so that the transmission rate thereof is less than the bandwidth of a wireless channel; then segmenting the voice, carrying out time division treatment on the wireless channel, organizing the spare bandwidth of the wireless channel and the voice in a form in accordance with the predefined frame, and sending into the air asynchronously or in a mode of being synchronous with transmitting equipment which runs at the moment; adopting a carrier sense mode to acquire an air wireless signal by a receiving party, carrying out synchronization by utilizing the air wireless signal, and resolving transmitted shunting instruction information, wherein the shunting command is the signaling; and enabling the signaling and the voice to utilize different channels in the frame, thus realizing forcibly inserting the signaling. The invention has the following advantages: the voice and the signaling are ensured not to conflict with each other; the voice and the shunting signaling operate in non-conflicting communication modes; when the voice is used, the signaling can be forcibly inserted, thus ensuring that the voice and the shunting operation can be carried out synchronously and the shunting signaling can not be lost due to signaling transmission and voice conversation.
Description
technical field [0001] The invention relates to the field of train wireless planar shunting communication equipment, in particular to a processing method for realizing the forced insertion of signaling into a voice call, and the method is used in train wireless planar shunting communication. Background technique [0002] In the plane shunting operation, the wireless plane shunting equipment has gradually replaced the original lights and flags, and has become an effective tool for shunting. However, in the existing shunting equipment, because the equipment is an analog system, etc., the shunting signaling transmission and the voice call often cannot be carried out synchronously, so that the shunting signaling cannot be received while sending the voice. Therefore, the shunting signaling may be caused. The order is lost, and it will cause trouble in the use of the plane shunting equipment. Contents of the invention [0003] In view of the above problems, the purpose of the p...
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Inventor 李辉辉秦嗣波张键
Owner 天津七一二移动通信有限公司