TH41289A3 - Methods and devices for generating and transmitting encrypted symbols in CDMA communication systems. - Google Patents

Abstract

DC60 (26/08/42) channel transmitter for communication system The multi-access type relies on a code segmentation (CDMA) that uses at least two carriers. In the signal input device Channel code scatter symbol According to the matrix model, subtract the symbols that define the matrix model, delete the symbols. Are assigned to distribute symbols over various carriers with decay. Minimal performance, although some carriers may be damaged The scatter will accept the symbol and the scatter it receives. To the carrier according to the scatter symbol Methods and devices for giving birth And distribute the circular code In such a way that Deterioration in quality of work Due to bad connection May be minimal during detachment Transponder code In CDMA communication systems, the rotary encoder encodes the data transmitted at the Encoding at R = 1/6 and can be used for channel encoders. Channel encoder Such a signal It can be used in DS-CDAM communication systems and multi-carrier CDMA communication systems when channel encoders are used in multi-carrier CDMA communication systems, the symbols that are output from multiple composite encoders. For the encoder, the channel will be Distributed to the channels of various finders according to the established rules And a composite encoder for the Encrypt the channel The quality degradation in all channel encoders can be minimized even though the output of one of the encoders. In particular, it will be completely separated from the transmission channel. Transmission devices for communication systems The multi-access type relies on a code segmentation (CDMA) that uses at least two carriers. In the signal input device Channel code scatter symbol According to the matrix model, subtract the symbols that define the matrix model, delete the symbols. Are assigned to distribute symbols over various carriers with decay. Minimal performance, although some carriers may be damaged The scatter will accept the symbol and the scatter it receives. To the carrier according to the scatter symbol Methods and devices for giving birth And distribute the circular code In such a way that Deterioration in quality of work Due to bad connection May be minimal during detachment Transponder code In CDMA communication systems, the rotary encoder encodes the data transmitted at the Encoding at R = 1/6 and can be used for channel encoders. Channel encoder Such a signal It can be used in DS-CDAM communication systems and multi-carrier DCMA communication systems when channel encoders are used in multi-carrier CDMA communication systems, the symbols that are output from multiple composite encoders. For encoding channels will be Distributed to the channels of various finders according to the established rules And a composite encoder for the Encrypt the channel This reduces the quality of all channel encoders in that even one of the encoders' output In particular, it will be completely separated from the transmission channel.

Claims (1)

1. Channel equipment for communication systems With multiple entry channels A code interval (CDMA) that uses at least two carriers. Where it contains: a channel encoder to encode the channel information To be sent as a symbol The rate of the encoding as specified; Channel controller to generate signal Scatter symbols that follow the body Matrix model Delete the assigned symbol. Where the matrix model subtracts the notation Will be determined for that Will distribute symbols among the carriers, with tags: