Method of repeater gain control, repeater and storage medium

1 . A method of repeater gain control for a repeater, in which the repeater is used to amplify cellular communication signals between a base station and a user equipment, the method comprising:

estimating a power of received signals by utilizing a measured power of pre- defined patterns or symbols of the received signals, wherein the power of received signals is estimated based on a power factor associated with a measurement object corresponding to the pre-defined patterns or symbols;

determining a gain of the repeater based on the estimated power of received signals; and

updating the power factor based on a measured power of the received signals and a measured power of the measurement object,

wherein the subsequent power of received signals is estimated based on the updated power factor.

2 . The method according to claim 1 , wherein the pre-defined patterns or symbols of the received signals comprise at least one of synchronization signals, preambles, pilots, or reference signals.

3 . The method according to claim 1 , wherein the measured power of the received signals or the measurement object is an average or maximum power level measured within a power factor update period.

4 . The method according to claim 1 , wherein the gain of the repeater is determined by a minimum of a maximum gain, and a maximum output power minus the estimated power of received signals.

5 . The method according to claim 1 , further comprising:

based on the estimated power of received signals, adjusting a Rx gain of the repeater by stepwise decrement or increment; and

determining a Tx gain of the repeater based on the determined gain and the adjusted Rx gain.

6 . A non-transitory machine-readable medium, comprising a plurality of instructions, when executed by a machine, the instructions cause the machine to perform the method of repeater gain control according to claim 1 .

7 . A repeater, used to amplify cellular communication signals between a base station and a user equipment, the repeater comprising:

a Rx circuit;

a Tx circuit; and

a controller, coupled to the Rx circuit and the Tx circuit, the controller being configured to:

estimate a power of received signals by utilizing a measured power of pre-defined patterns or symbols of the received signals, wherein the power of received signals is estimated based on a power factor associated with a measurement object corresponding to the pre-defined patterns or symbols;

determine a gain of the repeater based on the estimated power of received signals; and

update the power factor based on a measured power of the received signals and a measured power of the measurement object,

wherein the subsequent power of received signals is estimated based on the updated power factor.

8 . The repeater according to claim 7 , wherein the pre-defined patterns or symbols of the received signals comprise at least one of synchronization signals, preambles, pilots, or reference signals.

9 . The repeater according to claim 8 , wherein the measured power of the received signals or the measurement object is an average or maximum power level measured within a power factor update period.

10 . The repeater according to claim 7 , wherein the gain of the repeater is determined by a minimum of a maximum gain, and a maximum output power minus the estimated power of received signals.

11 . The repeater according to claim 7 , wherein the controller is further configured to:

based on the estimated power of received signals, adjust a Rx gain of the repeater by stepwise decrement or increment; and

determine a Tx gain of the repeater based on the determined gain and the adjusted Rx gain.