Methods, systems, and devices for wireless communications are described for relaying communications from a source device to a destination device via one or more relay devices. Scheduled resource grants may be used to provide resources for the relayed communications, and may provide one or more associated relaying parameters for relayed communications. A source device and relay device may use parameters to determine a relaying priority for multiple communications that are to be relayed. Additionally or alternatively, scheduled resource grants may include energy harvesting (EH) parameters for communications that use the scheduled resources. The EH parameters may include, for example, time-switching energy harvesting parameters that configure a first subset of symbols for data and a second subset of symbols for EH, or power-splitting EH where power of a received signal is split between EH components and decoding components.

In one embodiment, a RF signal repeater switchable between SISO and MIMO comprises: a controller; a first transmitter path switchably coupled to first donor and coverage antennas; a second transmitter path switchably coupled to second donor and coverage antennas; a first receiver path switchably coupled to the first donor and coverage antennas; a second receiver path switchably coupled to the second donor and coverage antennas. The controller configures the repeater for a MIMO TDD operating mode by: configuring the first transmitter path and the second receiver path to repeat at least a first MIMO channel of UE uplink RF signals and at least a first MIMO channel of base station downlink RF signals; and configuring the second transmitter path and the first receiver path to repeat at least a second MIMO channel of UE uplink RF signals and at least a second MIMO channel of base station downlink RF signals.

An information transmission method and a node device. The method includes: coordinating target information with a second node device; and determining, based on the target information, working information of a third node device; where the target information includes at least one of first information, second information, feedback information for the first information, and feedback information for the second information; the working information includes identification information of the third node device; and the working information further includes at least one of the following: on/off information of switch elements of reflecting or refracting units in the third node device; a working mode of the third node device; phase related information; amplitude related information; polarization related information; and frequency related information.

Provided herein are apparatus and methods for radio frequency signal boosters for cellular and broadcast television signals with Wi-Fi signals transmission function. Cell phone, Wi-Fi, and broadcast television signals are boosted and retransmitted over a shared antenna or over more than one antenna. In certain implementations, a multi-band signal booster is configured to provide signal path gain to at least three signal paths: a first signal path configured to receive a first time division duplexed Wi-Fi signal, a second signal path configured to receive a first frequency division duplexed mobile or cellular signal, and a second signal path configured to receive a broadcast television signal.

The present disclosure provides an apparatus for setting a gain of a RF repeater includes: a synchronization signal power calculator configured to determine an average received power level of a synchronization signal received over a predetermined number of times as a synchronization signal power; a downlink power calculator configured to calculate a downlink input power according to a power ratio of synchronization signal to data channel signal based on the synchronization signal power; and a downlink gain setting unit configured to calculate a downlink gain by subtracting the downlink input power from a downlink output power determined by hardware specifications to set the downlink gain.

One embodiment is directed to a repeater system for use with a Fifth Generation (5G) New Radio (NR) base station. The repeater system includes repeater circuitry configured to switch between a downlink mode and an uplink mode. The repeater circuitry is configured to determine basic time-division duplexing (TDD) parameters for a 5G NR cell served by the 5G NR base station. The repeater circuitry is configured to determine timing of 5G NR time-division duplexing of the 5G NR cell based at least in part on correlating a waveform of a downlink signal with one or more of: a 5G NR Primary Synchronization Signal expected to be in the downlink signal as indicated by at least some of the basic TDD parameters and a 5G NR Secondary Synchronization Signal expected to be in the downlink signal as indicated by at least some of the basic TDD parameters.

Methods and apparatuses are described for cooperation of two or more devices to improve the transmissions over a Uu interface. A source receives or transmits an indicator indicating a first mode of two modes of cooperation between the source apparatus and at least a first cooperating device. The two modes of cooperation includes a joint communication mode and a relay mode of cooperation. If the first mode is the joint communication mode, at least a portion of the data, intended for the intended recipient, is transmitted to at least the first cooperating device to be further transmitted by the first cooperating device to the intended recipient. A same or different portion of the data is transmitted to the intended recipient or to a second cooperating device to be further transmitted by the second cooperating device to the intended recipient.

A repeater device that includes control circuitry, which executes a network time synchronization with the base station, where the repeater device functions as a remote antenna for the base station or a remote radio for the base station based on the network time synchronization. The control circuitry further activates a slave mode in the repeater device, and executes a synchronization with a modem of a first wireless communication device in which the repeater device in the slave mode follows a radio state of the modem of the first wireless communication device. In the slave mode, the repeater device is exclusively shared with the first wireless communication device or electronic accessories associated with the first wireless communication device and not shared with other wireless communication devices present in a same area of the first wireless communication device.

Methods, systems, and devices for wireless communications are described. In some systems, a repeater may receive a first signal from a transmitting device and determine an amplified version of the signal may not be successfully received by a receiving device. The repeater may transmit a mode switch message to the transmitting device to indicate a request for the transmitting device to switch to a transmission mode associated with one or more different transmission parameters based on detecting that the amplified version of the signal may not be received by the receiving device. The transmitting device may adjust one or more transmission parameters according to the mode switch message and may transmit a second signal to the repeater based on the adjusted transmission parameters. The repeater, operating according to the mode switch message, may receive the second signal and transmit an amplified version of the second signal to the receiving device.

An indication method, including receiving, by first user equipment, a first message sent by second user equipment, where the first message includes information indicating that the second user equipment supports an evolved user equipment-to-network relay function, and receiving, by the first user equipment, a second message sent by a network device, where the second message includes information indicating that the network device supports an evolved user equipment-to-network relay, or the second message includes information indicating that a cell in which the network device sends the second message supports an evolved user equipment-to-network relay.