An electronic device provided includes a communication module, an external module, and a signal integration circuit including first to fourth input ports, and first and second output ports. The first input port is for inputting an input signal. The second input port is for inputting a first L1 band signal. The third input port is for inputting a first L5 band signal. The fourth input port is for inputting a second L1 band signal and a second L5 band signal. The first output port selectively outputs a first output signal and a second output signal. The second output port selectively outputs the first L5 band signal and the second L5 band signal. When the fourth input port is not coupled to an external module, the first output port outputs the first output signal, and the second output port outputs the first L5 band signal.

An aggregation unit includes a transceiver configured to transmit unique signals to a plurality of transmission reception points (TRxPs) for transmission by the plurality of TRxPs and receive uplink signals received by the plurality of TRxPs from a user equipment. The aggregation unit also includes a processor configured to generate a sum of the uplink signals from a subset of the plurality of TRxPs. The subset is determined based on measurements of the unique signals performed by the UE. In some cases, the subset is determined by a baseband unit that receives a measurement report including the measurements performed by the UE. The transceiver is configured to transmit the sum of the uplink signals to the baseband unit over a fronthaul link.

Methods and apparatus are provided. In an example aspect, a method in an antenna apparatus is provided. The antenna apparatus comprises an antenna array comprising a plurality of antennas. The method comprises comparing output of a first antenna of the plurality of antennas with a threshold based on output of at least one other antenna of the plurality of antennas, and based on the comparing, selectively combining the output of the first antenna with the output of the other antennas of the plurality of antennas to provide a combined signal.

An electronic device provided includes a communication module, an external module, and a signal integration circuit including first to fourth input ports, and first and second output ports. The first input port is for inputting an input signal. The second input port is for inputting a first L1 band signal. The third input port is for inputting a first L5 band signal. The fourth input port is for inputting a second L1 band signal and a second L5 band signal. The first output port selectively outputs a first output signal and a second output signal. The second output port selectively outputs the first L5 band signal and the second L5 band signal. When the fourth input port is not coupled to an external module, the first output port outputs the first output signal, and the second output port outputs the first L5 band signal.

An information handling system include a processor; a memory; a power management unit; a wireless interface adapter for transceiving wireless communications via RF waves having a third wireless protocol subsystem operatively and selectively couplable to one of a first antenna and a second antenna via an RF switch to initiate OOB communications with a network; and an antenna controller operatively coupled to the RF switch configured to receive radio telemetry data indicating radio connection status information of the first wireless protocol subsystem, the second wireless protocol subsystem, and the third wireless protocol subsystem; and determine assignment of one of the first antenna and second antenna to be a shared antenna and switched to the third wireless protocol subsystem based on the operational status of the first wireless protocol subsystem, second wireless protocol subsystem, and third wireless protocol subsystem.

An electronic device is provided. The electronic device includes a first antenna, a second antenna, a transmission/reception path unit, a first reception path unit, a second reception path unit including a low noise amplifier (LNA), a signal path selection unit configured to connect each of the first antenna and the second antenna to the transmission/reception path unit, the first reception path unit, or the second reception path unit, and a radio frequency integrated circuit (RFIC) module or a processor including the RFIC module configured to control the signal path selection unit to have a first state in which the first antenna is connected to the transmission/reception path unit and the second antenna is connected to the second reception path unit or control the signal path selection unit to have a second state in which the first antenna is connected to the first reception path unit and the second antenna is connected to the transmission/reception path unit.

A method performed by a user equipment (UE) configured with a plurality of antenna panels. Each antenna panel is configured to beamform over a millimeter wave (mmWave) frequency band. The method includes identifying a predetermined condition corresponding to a first antenna panel of the plurality of antenna panels, selecting a second antenna panel of the plurality of antenna panels based on identifying the predetermined condition corresponding to the first antenna panel and transmitting a beam via the second antenna panel based on the selection.

A method for adjusting an antenna configuration of the terminal device (30) in a cellular communication system (10). The system (10) includes a base station (20) and a terminal device (30) having a plurality of antenna elements (40-43). In the terminal device (30) a plurality of preset antenna configurations is provided. Each antenna configuration defines at least one reception parameter for the plurality of antenna elements (40-43). For each antenna configuration of the plurality of preset antenna configurations the antenna configuration is applied to the plurality of antenna elements (40-43) and a reception characteristic of a signal transmission from the base station (20) is determined. Based on the plurality of reception characteristics one antenna configuration is selected and applied to the plurality of antenna elements (40-43) for further signal transmissions.

An antenna control method selects as required one of two inbuilt antenna paths for optimal communication and includes a first transmission power of the antenna being acquired from one antenna path when a first and a second switch device are connected, and a second transmission power from a second antenna path when so connected. A determination is made on events or on a periodic basis as to whether the second transmission power is greater than or equal to the first transmission power, and the antenna path with greater power is selected for communication.

A method and an apparatus for acquiring channel information in a polarization division duplex system. An uplink signal transmitted from a terminal is received, the uplink signal indicating that a null subcarrier is disposed in a first subcarrier overlapped with a second subcarrier including a downlink pilot signal, and a self-interference channel is estimated by using a signal received from the null subcarrier. A signal corresponding to the null subcarrier from the uplink signal is removed, and channel information is acquired by estimating the uplink channel based on estimation results of the self-interference channel and a pilot signal included in the uplink signal from which the null subcarrier is removed.