A system for managing control of signal penetration into a building includes an exterior RF transmission unit located on an outside of the building, for transceiving signals at a first frequency that experiences losses when penetrating a structure of the building on a first RF communications link from an exterior base station and converting between the received signals at the first frequency and second signals in a first format that overcome losses caused by penetrating the structure of the building over a wireless communications link. An interior RF transmission unit located on the interior of the building and communicatively linked with the exterior RF transmission unit via the wireless communications link, receives and transmits the converted second signals in the first format that counteracts the losses caused by penetrating the structure of the building. A management control system configures operating parameters of the exterior RF transmission unit and the interior RF transmission unit within a system configuration controller. At least one interface enables user access to the management control system.

A method for communication processing includes obtaining a received power of each of two antennas in an antenna system of a mobile device; determining a difference between the received powers of the two antennas; determining a confidence level based on the difference, the difference being proportional to the confidence level; and determining a communication mode of the antenna system for communication based on the confidence level.

According to certain embodiments, a method is disclosed for use in a network node. The method comprises transmitting a set of system information transmission. Each transmission within the set comprises system information, and the set of transmissions enable soft combining by configuring a portion of the system information to be the same for each transmission within the set. For each transmission, the method comprises providing an indication of an identifier associated with the respective transmission. The indication is provided other than in the system information.

RF communication systems with interference cancellation for coexistence are provided herein. In certain embodiments, an RF communication system includes a transmitter that transmits a transmit signal through a first front end circuit, a receiver that processes a receive signal from a second front end circuit, and a feedback receiver that processes a feedback signal from the first front end circuit to generate a digital interference cancellation signal that compensates the receiver for interference arising from the transmitter.

Provided is a frame configuration usable for both SISO transmission and MISO and/or MIMO transmission. A frame configurator of a transmission device configures a frame by gathering data for SISO and configures a frame by gathering data for MISO and/or MIMO data, thereby to improve the reception performance (detection performance) of a reception device.

A receiver system (100) comprising: a plurality of receiver-input-terminals (102), each of which is configured to receive an input-signal from a respective antenna (106), wherein the input-signals comprise: i. one or more undesired-signal-components; and ii. one or more combined-signal-components. The receiver system (100) also includes a spatial-information-processing-block (112; 212) configured to: calculate spatial information (222) of the undesired-signal-components of the plurality of input-signals; calculate spatial information (220) of the combined-signal-components of the plurality of input-signals; calculate weighting-coefficients (226) for each of the input-signals based on the spatial information (220) of the combined-signal-components and the spatial information (222) of the undesired-signal-components; and combine the plurality of input-signals by applying the weighting-coefficients to each of the input-signals to provide a spatial-output-signal (114; 214). The receiver system (100) further includes a signal-combiner (130) configured to combine a plurality of signal-processing-path-output-signals (110) with the spatial-output-signal (114; 214) in order to provide a receiver-output-signal (108).

Systems, methods, apparatuses, and computer program products for non-linear precoding in radio access networks are provided. One method may include, when it is determined that a user equipment is capable of being non-linearly precoded, determining one of two non-linear precoding modes and indicating the determined non-linear precoding mode to the user equipment. One of the two non-linear precoding modes is configured to use explicit beamformed channel state information, and the other one of the two non-linear precoding modes is configured to use explicit full downlink channel state information.

A wireless communication system with scalable diversity and multi-transceiver diversity deployment is disclosed. An example communication system includes a first wireless transceiver, having a first bandwidth and a first center frequency, a second transceiver, having a second bandwidth and a second center frequency, and a processor. The processor is configured to operate the wireless communication system in a first mode when a difference between the first center frequency and the second center frequency is greater than or equal to half of the first bandwidth plus the second bandwidth. The processor is also configured to operate the wireless communication system in a second mode when a difference between the first center frequency and the second center frequency is less than half of the first bandwidth plus the second bandwidth.

To provide a terminal apparatus and a communication method capable of improving reliability and frequency efficiency in a case of transmission by beamforming. Provided are a higher layer processing unit configured with demodulation reference signal (DMRS) antenna port groups for indicating two groups of antenna ports of a DMRS, a receiver configured to receive the DMRS, downlink control information (DCI), and a downlink shared channel (PDSCH), and a decoding unit configured to decode the PDSCH, wherein the PDSCH includes a transport block, and in a case that the number of the transport blocks configured in the DCI is one, the PDSCH demodulated using a DMRS of a first group and/or the PDSCH demodulated using a DMRS of a second group is used to decode one transport block.

Systems for determining a variability in a state of a medium include one or more transmit elements or antennas and one or more receive elements or antennas which are relatively decoupled from one another. The transmit and receive elements or antennas can be less than 95% coupled to one another. The system also includes a transmit circuit configured to generate a transmit signal to be transmitted, which is in a radio or microwave frequency range of the electromagnetic spectrum. The system also includes a receive circuit configured to receive a response detected by the at least one receive antenna resulting from transmission of the transmit signal into the medium. The system includes a processor configured to determine the variability in the state of the medium based on processing of the response over time. The variability can further be used to direct notifications or automated actions.