Ultra-wideband communication systems and methods

Abstract

A method of communicating over a wideband communication channel divided into a plurality of sub-channels comprises dividing a single serial message intended for one of the plurality of communication devices into a plurality of parallel messages, encoding each of the plurality of parallel messages onto at least some of the plurality of sub-channels, and transmitting the encoded plurality of parallel messages to the communication device over the wideband communication channel. This Abstract is provided for the sole purpose of complying with the Abstract requirement rules that allow a reader to quickly ascertain the subject matter of the disclosure contained herein. This Abstract is submitted with the explicit understanding that it will not be used to interpret or to limit the scope or the meaning of the claims.

1 . A method for generating a plurality of synchronization codes for use in an ultra-wideband communication system, the method comprising the steps of: 
 selecting a synchronization code sequence;    generating a first synchronization code by repeating the synchronization code sequence a number of times equal to a reuse factor; and    generating subsequent synchronization codes by shifting the first synchronization code in frequency.    
     
     
         2 . The method of  claim 1 , wherein shifting the first synchronization code in frequency is achieved using the following equation:  
           z   r ( m )= y ( m )*exp( j* 2 *π*r*m /( n*L )), where:  
       where: r=1 to L, L being the length of the synchronization code sequence being used to generate the subsequent synchronization codes; 
 z r (m)=each subsequent synchronization code sequence;  
 y(m)=the first synchronization code sequence;  
 n=the number of times the synchronization code sequence is repeated; and  
 m=0 to n*L−1.  
 
     
     
         3 . An ultra-wideband communication system, comprising: 
 a plurality of base stations configured to communicate with a plurality of ultra-wideband communication devices over a common communication channel, with each base station configured to use a unique synchronization code relative to other adjacent base stations when communicating with the plurality of ultra-wideband communication devices over the common communication channel, with the common communication channel comprising a radio frequency bandwidth that is divided into a plurality of non-overlapping sub-channels.    
     
     
         4 . The ultra-wideband communication system of  claim 3 , wherein the synchronization codes have at least one ideal cross correlation property relative to each other.  
     
     
         5 . The ultra-wideband communication system of  claim 3 , where the system is configured to use a synchronization code reuse factor of 4.