Method for transmitting information using voice channel in DECT radio communication system
A wireless communication system and information dissemination technology, applied in the field of voice channel dissemination of information, can solve problems such as interference with data or voice transmission, only suitable for short message transmission, and human ear discomfort
Inactive Publication Date: 2005-07-27
WINBOND ELECTRONICS CORP
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Problems solved by technology
The first type of C / L downlink service (short-SHORT) uses the A field to transmit information. Its advantage is that it will not affect the ongoing data or voice transmission, but its disadvantage is that it is only suitable for short message transmission.
The second C / L downlink service (long-LONG) uses the B field to transmit information. Its advantage is that it is suitable for long information transmission, but the disadvantage is that the C / L downlink data will interfere with ongoing data or voice transmission. ear discomfort
It can be seen from Figure 2 that the P channel can only be used in the 0th, 2nd, 4th, 6th, 10th, and 12th frames
Method used
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[0035]Regardless of whether the mobile terminal is connected to the base station or not, the mobile terminal will definitely receive the paging message in the 0th frame, and decide whether to receive the paging message in the subsequent frame according to the value of the extended flag in it. Through this feature, the present invention utilizes the B column to transmit long information to all mobile phones.
[0036] The present invention utilizes the data form (info-type) (4 bits) column (see Fig. 3) in the paging format of the zero-length paging message of MAC layer P channel, defines one and jumps away from (ESCAPE) coding, and its embodiment value is ( 0, 1, 1, 1). When the decoding results in ESCAPE, it means that the subsequent 12 bits can be used as broadcast control (broadcast control), refer to FIG. 4 .
[0037] According to an embodiment of the present invention, the 12 bits of the propagation control are divided into 3 fields and defined as shown in FIG. 5 . The fi...
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45. The invention relates to a method transmitting information by audio channels in a DECT radio communication system. The DECT radio communication system comprises at lease a base station and a mobile phone end, M frequency channels, wherein, each channel includes N time slot. The base station transmits signals and data to the mobile phone end by many sashes. The said sashes comprise first-type sashes for transmitting P logical channel data and N logical channel data. The first-type sashes include a Zero, a Second, a Fourth, a Sixth, a Tenth, and a Twelfth sash. The said method comprises the following steps: 1) in the Zero sash, set an extension sign in zero-length calling column as 1 which is transmitted by P logical channel, to notify the mobile phone end to receive calling information in the second sash; 2) in the first-type sashes closest followed the second sash, by the data / audio signals column, transmit information in turn to the mobile phone end.
Description
technical field [0001] The present invention relates to a method for disseminating information, in particular to a method for disseminating information by using a voice channel under a DECT wireless communication system. Background technique [0002] US Patent 5,493,609, US Patent 5,521,925, US Patent 5,892,794. [0003] Pan-European (Digital Enhanced Cordless Telecommunications--DECT) communication standard is a standard formulated by the European Telecommunications Standards Institute (European Telecommunication Standard Institute) in 1988. This standard regulates digital mobile communications throughout Europe. DECT covers wireless PBXs, telecommunications points ( telepoint), residential cordless telephones, wireless access to the public switched telephone network, closed user groups (CUGs), local area networks (Local Area Networks) and wireless local loop. [0004] DECT only defines a radio link between two points and can be used as a remote access to public or privat...
Claims
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IPC IPC(8): H04W68/00
CPCH04W68/00
Inventor 马国勇刘昭荫
Owner WINBOND ELECTRONICS CORP