Message Retrieving System with Signal Collision Mitigation and A Method Thereof

摘要

A message retrieving system and method for signal collision mitigation and the method thereof are disclosed. The message retrieving system transmits two orthogonal signals over two isolated antenna during a time period that it expects to receive the response. Two virtual channels are artificially created and the collision of response signals originated from the respondents is mitigated.

主权项

1. A message retrieving system for at least one respondent comprising:
a) a first antenna configured to transmit a first signal to said respondent and to receive a response signal from said respondent; b) a second antenna configured to transmit a second signal to said respondent and to receive said response signal from said respondent; c) a first demodulator coupled to said first antenna and configured to extract a first component from said response signal; d) a second demodulator coupled to said second antenna and configured to extract a second component from said response signal; and e) a retrieving module configured to retrieve at least one message of said respondent based on said first component and said second component;wherein said first antenna is substantially isolated with said second antenna; and said first signal is substantially orthogonal to said second signal in time domain.