Patent ID: 8897337
Filing Date: 2014-11-25
Classification: H04B,H04J,H04W

Abstract:
1. A method for estimating a ratio of average chip energy to a total transmit power spectrum density (Ec/Ior), comprising: according to a group of spreading codes corresponding to an acquired spreading factor (SF), obtaining an estimated value of a total transmit power spectrum density (Ior); according to a spreading code of a physical channel to be estimated, obtaining an estimated value of average chip transmit energy (Ec); and according to the estimated value of the Ior and the estimated value of the Ec, obtaining an estimated value of Ec/Ior; according to a protocol that is corresponding to a communication system, obtaining an SF value, wherein the SF value is greater than or equal to a minimum SF value of a common channel, wherein the minimum SF value of the common channel is specified by the protocol; wherein the obtaining the estimated value of the Ior according to the group of spreading codes corresponding to the acquired SF comprises: according to  calculating a biased estimated value of the Ior, wherein Ior′ is a biased estimated value of the Ior, A