Patent ID: 8611481

Claim:
A method, comprising: receiving a sequence of channelization encoded correlated symbols, analyzing properties of the received sequence to detect a presence or absence of a specific control channel, wherein said analyzing is performed without use of a specific channelization code for the specific control channel, wherein the analyzing comprises: summing up a plurality of symbols to obtain a first sum, multiplying each one of the plurality of symbols with a respective multiplier to obtain a plurality of respective products, summing up the plurality of respective products to obtain a second sum, and dividing a square of the first sum by a divisor to obtain a ratio, wherein the divisor comprises the second sum or a square of the second sum, and deciding on the presence or absence of the specific control channel based on the analyzed properties, wherein the deciding comprises comparing the ratio with at least one threshold value, wherein, in response to the ratio being larger than a first threshold value, the specific control channel is decided to be present, and in response to the ratio being smaller than a second threshold value, the specific control channel is decided to be absent.