A method and apparatus for adaptive uplink/downlink resource assignment may include determining uplink interference associated with each of several uplink resources. A wireless network device may produce an uplink list with values for the uplink resources. The device may compare a downlink power level to at least one threshold for each of the downlink resources, wherein at least two of the downlink resources are each associated with a different portion of a frame. The device may produce a downlink list, which may be a bit stream providing an indication, for each downlink resource, indicating whether each of the downlink resources have a downlink power level which is less than or equal to the at least one threshold. The device may send the uplink and downlink lists and may receive an uplink list and a downlink list from each of several neighboring wireless network devices.

Systems and methods are described for determining position of a receiver. The positioning system comprises a transmitter network including transmitters that broadcast positioning signals. The positioning system comprises a remote receiver that acquires and tracks the positioning signals and/or satellite signals. The satellite signals are signals of a satellite-based positioning system. A first mode of the remote receiver uses terminal-based positioning in which the remote receiver computes a position using the positioning signals and/or the satellite signals. The positioning system comprises a server coupled to the remote receiver. A second operating mode of the remote receiver comprises network-based positioning in which the server computes a position of the remote receiver from the positioning signals and/or satellite signals, where the remote receiver receives and transfers to the server the positioning signals and/or satellite signals.

The invention involves utilizing pieces of disjoint spectral blocks. In one embodiment, a frequency division duplex approach is used, where each spectral block is utilized solely for either uplink or downlink communications. In another embodiment, a time division duplex approach is used, where each spectral block is time divided and uplink and downlink communications are assigned to different time slots within the same spectral blocks. In another embodiment, a code division duplex approach is utilized, where uplink and downlink communications are assigned different codes/hopping patterns within a same spectral block.

Methods, apparatuses, and systems are described for wireless communications. A transmission timing difference between a first cell group and a second cell group may be determined. If the transmission timing difference exceeds a threshold, one or more devices may stop transmitting uplink signals via one or more secondary cells and/or may not apply the timing adjustment for a cell group.

Systems and methods are described for determining position of a receiver. The positioning system comprises a transmitter network including transmitters that broadcast positioning signals. The positioning system comprises a remote receiver that acquires and tracks the positioning signals and/or satellite signals. The satellite signals are signals of a satellite-based positioning system. A first mode of the remote receiver uses terminal-based positioning in which the remote receiver computes a position using the positioning signals and/or the satellite signals. The positioning system comprises a server coupled to the remote receiver. A second operating mode of the remote receiver comprises network-based positioning in which the server computes a position of the remote receiver from the positioning signals and/or satellite signals, where the remote receiver receives and transfers to the server the positioning signals and/or satellite signals.

Wireless communications are described. A wireless device may be configured to transmit a first signal via a first cell group that may overlap in time with a second signal via a second cell group. The wireless device may adjust a signal transmission power of at least one of the first signal or the second signal. Additionally or alternatively, the wireless device may drop at least one of the first signal or the second signal. Adjusting and/or dropping at least one of the first signal or the second signal may be based on the overlap in time of these signals satisfying a duration threshold and a total power to transmit the first signal and the second signal exceeding a power threshold.

Systems and methods to co-locate RFID readers with in-band sensor networks, such as LoRa sensor networks, are disclosed herein. An example arrangement is a co-located device that includes a dual-mode transceiver configured to communicate with targets operating in a first protocol (e.g., RFID) and other targets operating in a second protocol (e.g., LoRa). The example arrangement includes a dual-mode controller that operates the dual-mode transceiver to communicate via the first protocol during a first time period while disabling communication via the second protocol and to communicate via the second protocol in a second time period while disabling communication via the first protocol.

Wireless communications are described. A wireless device may be configured to transmit a first signal via a first cell group that may overlap in time with a second signal via a second cell group. The wireless device may adjust a signal transmission power of at least one of the first signal or the second signal. Additionally or alternatively, the wireless device may drop at least one of the first signal or the second signal. Adjusting and/or dropping at least one of the first signal or the second signal may be based on the overlap in time of these signals satisfying a duration threshold and a total power to transmit the first signal and the second signal exceeding a power threshold.

Methods, apparatuses, and systems are described for wireless communications. Cells may be grouped into a plurality of cell groups. A wireless device may transmit or drop one or more of a plurality of signals.

Systems, methods, and apparatuses are described for wireless communications. A wireless device may transmit an uplink signal via a cell of a cell group. Transmission timing of the uplink signal may be based on a cell of the cell group and a timing adjustment associated with a different cell group.