摘要:
Devices, systems, and methods are provided to enable power saving when operating a communication device in an idle state in a Universal Mobile Telecommunications System. In some embodiments a method is provided to enable universal mode communication devices operating in a Universal Mobile Telecommunications System to determine whether a serving base station transmits signals using a selected Radio Access Technology (RAT) during an idle state of operation. In the case where the serving base station transmits signals using a non-selected RAT, the communication device may select a neighboring base station where an adequate signal is provided using the selected RAT, irrespective of the signal strength in the cell being served.
摘要:
A femtocell power control module is operative to: obtain at least one uplink communication characteristic associated with the uplink signals transmitted by the at least one cellular communication device and received by the femtocell base station; estimate, from the obtained uplink communication characteristic, the power level of the downlink signals transmitted by the femtocell base station, as received by the at least one cellular communication device; if the estimated power level of the downlink signals transmitted by the femtocell base station as received by the at least one cellular communication device exceeds a predefined threshold power level, reduce the power level of the downlink signals transmitted by the femtocell base station to a reduced power level.
摘要:
A method of improving frequency accuracy of a clock unit adapted to clock a femtocell local cellular communication home base station is provided. The method comprising: providing a local cellular communication home base station having an oscillator adapted to operate as a clock therein, wherein at least one cellular communication device is camped thereto, and wherein the at least one camped cellular communication device is further in communication with at least one neighboring cellular communication base station which is associated with an oscillator adapted to operate as a clock therein; periodically applying a derivative operator over periodically obtained local communication parameters and periodically obtained neighboring communication parameters thereby generating derivative communication parameters over time; and correcting the accuracy of the frequency of the clock in the femtocell local cellular communication home base station using the derivative communication parameters over time.
摘要:
Provided is coordinating user equipment handover in a heterogeneous network cell that includes a plurality of overlaying cell layers. An access controller of a network core receives a first parameter relating to signal quality for the user equipment with a serving cell of a cell layer of the plurality of overlaying cell layers, and receives a second parameter based upon a velocity estimation of user equipment within the heterogeneous network cell. When the first parameter indicates a cell boundary, the access controller forms a handoff decision to a cell base station of a cell layer of the plurality of overlaying cell layers based upon the second parameter, and initiates a handoff to the cell base station based upon the handoff decision.
摘要:
A femtocell power control module is operative to: obtain at least one uplink communication characteristic associated with the uplink signal transmitted by the at least one cellular communication device and received by the femtocell base station; estimate, from the obtained uplink communication characteristic, the power level of the downlink signals transmitted by the femtocell base station, as received by the at least one cellular communication device; if the estimated power level of the downlink signals transmitted by the femtocell base station as received by the at least one cellular communication device exceeds a predefined threshold power level, reduce the power level of the downlink signals transmitted by the femtocell base station to a reduced power level.
摘要:
In a wireless communications system, during a base station or cell monitoring procedure, a device, system, and method may enable a communication device to determine if a serving base station is transmitting an adequate signal, and, if the base station is not transmitting an adequate signal, identifying another base station that may provide adequate service. For example, it may be determined if at least one other base station in a list of previously identified base stations transmits adequate signals. If this is not the case, a scan may be performed of a set of channels to identify further base stations or cells.