Patent ID: 7848281
Filing Date: 2010-12-07
Classification: G06F,G11B,H03L,H04B,H04J,H04L,H04M,H04N,H04Q,H04W,Y10S

Abstract:
1. A method for selecting a transmission channel for transmission and sending a message from a mobile terminal to a base station, comprising: initially sending from the mobile terminal a send authorization request signal for a specific transmission channel to the base station; sending from the base station to the mobile terminal a response signal containing a first decision value, wherein a first set of signature character sequences is used for encoding the first decision value in the response signal, the first decision value indicating whether the mobile terminal is authorized to send a message on the specific transmission channel and, if the first decision value indicates the mobile terminal is refused authorization to use the specific transmission channel and the mobile terminal is authorized to send a message on another transmission channel, the response signal including a second decision value, wherein said second decision value in the response signal is encoded using at least one signature character sequence orthogonal to the first set of signature character sequences, and wherein the at least one signature character sequence used for encoding the second decision value is created by multiplying only each second character of a signature character sequence of the first set of signature character sequences by −1; analyzing by the mobile terminal, upon detection that the first decision value in the response signal is negative, the response signal to determine whether the second decision value is included in the response signal, indicating authorization of the mobile terminal to send a message on another transmission channel; and sending the message by the mobile terminal to the base station on one of the transmission channels available.