Patent ID: 9191126
Filing Date: 2015-11-17
Classification: H04B,H04W

Abstract:
1. A body channel communication method comprising the steps of: (a) detecting if a body channel is established; (b) when that a body channel is established is detected, receiving a check packet from an electrical device, which is at another end of the body channel, through the body channel; (c) estimating a current interference power of the body channel according to the received check packet; (d) obtaining a current transmission mode for the body channel according to the current interference power; and (e) transmitting data through the body channel, which is set to the current transmission mode; wherein the check packet comprises at least one check symbol, and step (c) comprises the step of: calculating the current interference power of the body channel according to the at least one check symbol and at least one preset symbol corresponding to the check packet; wherein the at least one preset symbol comprises at least one preset uniform symbol and at least one preset null symbol, and the at least one check symbol comprises at least one uniform symbol for check and at least one null symbol for check; wherein the step of calculating the current interference power of the body channel according to the at least one check symbol and the at least one preset symbol is implemented as follows: wherein I