| 主权项 |
1. A method for combining a plurality of binary Code Division Multiple Access (CDMA) codes, the method comprising:
receiving by a first computer device a plurality of codes, wherein the plurality of codes are binary CDMA codes having possible logical values of −1 or +1, wherein the plurality of codes comprises an even number of codes, and wherein the first computer device comprises at least one processor and operatively associated memory; and generating, by the first computer device, a first output based on a sum of the plurality of codes, wherein the generating comprises:
determining, by the first computer device, a sum of the plurality of codes wherein, depending on logical values of the plurality of codes, the sum is one of: greater than zero, less than zero, or equal to zero; anddetermining, by the first computer device, a signum of the sum of the plurality of codes, wherein the first output is equal to the signum of the sum of the plurality of codes, and wherein, depending on the sum of the plurality of codes, the signum of the plurality of codes takes one of the following conditional values:1, in the case where the sum of the plurality of codes is greater than zero;−1, in the case where the sum of the plurality of codes is less than zero; and0, in the case where the sum of the plurality of codes is equal to zero;modulating the first output onto a carrier signal to generate a modulated signal; andgenerating a transmit signal, wherein the transmit signal is equal to an amplified representation of the modulated signal when the first output is non-zero and wherein the transmit signal is equal to zero when the first output is zero. |
