Embodiments of the disclosure are generally directed to disabling sounding, resource-block allocation, and various full-duplex (FDX) capabilities in a particular portion of a spectrum used in FDX-enabled cable networks. The disclosure further describes using an upstream mode of communication in the particular portion of the spectrum originally designated for FDX communication. In another aspect, the disclosure can thereby facilitate an increase in upstream capacity on the cable network, for example, a fifteen-fold increase in the upstream capacity. In some embodiments, control messages can be transmitted from a controller node to devices on the network periodically, describing the usage of the FDX portion of the spectrum for upstream transmission. The control messages can include medium access control (MAC) management messages and/or tag-length-value (TLV) messages.

Disclosed is a method for transmitting acknowledgement information by a user equipment in a wireless communication system, including receiving information indicating a resource for transmission of the acknowledgement information on a downlink control channel, determining a resource for transmitting the acknowledgement information based on the received information, and transmitting the acknowledgement information on the determined resource.

Systems and methods are disclosed herein that relate to resource allocation and/or fallback operation for an uplink control channel format, e.g., that supports feedback (e.g., Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK) (HARQ-ACK) feedback) for up to a large number (e.g., thirty-two) carriers.

A multifunctional amplifier for Time Division Duplex signals and Frequency Division Duplex signals in Very High Bit-Rate Subscriber Line, is disclosed. The multifunctional amplifier may include a first and second bidirectional terminals, at least one first filter connected between said first and second bidirectional terminals for bypassing signals in a first configuration, an amplifier circuit arranged in a signal path between first and second bidirectional terminals to amplify said signals, the amplifier circuit being operable in a second configuration for amplifying said signals in one direction along the signal path and a third configuration for amplifying said signals in the opposite direction along the signal path, and a control circuit arranged to control said amplifier circuit to change configuration.

Systems, methods, and circuitries are provided to perform full duplex communication using edge timing in a common signal. In one example, a method for a slave device includes receiving a common signal resulting from combination of a slave signal transmitted by the slave device on a signal line and a master signal transmitted by the master device on the signal line. The common signal includes a series of signal periods having a first edge and a second edge. The method includes, in a period of the common signal: determining slave information to be communicated; selecting a second edge timing corresponding to the slave information; detecting the first edge in the common signal; transmitting a slave signal having a first slave edge at the second edge timing after the first edge; and determining master information based on a detected level of the common signal at a check point of the signal period.

A system and method of subframe configuration in licensed-assisted access using long-term evolution (LAA-LTE) with carrier aggregation (CA). A wireless device such as an eNodeB (eNB) may transmit control information in a subframe from a secondary cell (SCell) in downlink control information (DCI) to a user equipment (UE). The SCell may operate in an unlicensed band. The control information may indicate at least one of a non-ending subframe in a data burst, an ending subframe, and a duration of the ending subframe. The duration may be one of a predefined number of orthogonal frequency-division multiplexing (OFDM) symbol durations, and the ending subframe may be a partial or full subframe. A partial ending subframe may use a time slot structure in a time division duplexing (TDD) scheme, e.g., downlink pilot time slots (DwPTS). The eNB may then transmit to the UE data in the subframe according to the control information.

In one embodiment, a TDD repeater system comprises: a master unit comprising separate uplink and downlink signal paths defined therein, and configured to couple in an uplink direction to a base station and in a downlink direction to at least one remote antenna unit, wherein the uplink path communicates uplink communication signals, wherein the downlink path communicates downlink communication signals; a switch configured to change direction of signal transmissions within the master unit between the uplink communication signals and the downlink communication signals; a synchronizing unit is configured to receive via the downlink signal path a clock signal from the downlink communication signals, wherein the synchronizing unit supplies a control signal to the switch corresponding to the clock signal; wherein the switch swaps the direction of signal transmissions within the master unit between the uplink communication signals and the downlink communication signals in response to the control signal.

A wireless transmit/receive unit (WTRU) includes a receiver and a processor configured to receive information from a network node indicating an assignment of periodic time intervals to transmit sounding signals. The WTRU includes a transmitter and the processor configured to transmit sounding signals to the network node in the assigned periodic time intervals in response to the received information. The WTRU does not transmit any data at a same time that the WTRU transmits the sounding signals. The transmitted sounding signals from the WTRU are distinguishable from sounding signals from other WTRUs.

A multifunctional amplifier for Time Division Duplex signals and Frequency Division Duplex signals in Very High Bit-Rate Subscriber Line, is disclosed. The multifunctional amplifier may include a first and second bidirectional terminals, at least one first filter connected between said first and second bidirectional terminals for bypassing signals in a first configuration, an amplifier circuit arranged in a signal path between first and second bidirectional terminals to amplify said signals, the amplifier circuit being operable in a second configuration for amplifying said signals in one direction along the signal path and a third configuration for amplifying said signals in the opposite direction along the signal path, and a control circuit arranged to control said amplifier circuit to change configuration.

The present invention discloses a downlink control information sending method and device, and a downlink control information receiving method and device. The sending method includes: sending, by a base station device, downlink control information DCI on a physical downlink control channel PDCCH of a downlink subframe, where the DCI is used to instruct user equipment UE to receive physical downlink shared channel PDSCH information in an uplink subframe; and sending the PDSCH information in the uplink subframe. In this way, the base station can effectively schedule an uplink subframe, and a purpose of transmitting a downlink service by using an uplink subframe is achieved, which not only improves utilization of a wireless spectrum resource corresponding to the uplink subframe, but also effectively diverts load pressure of a wireless spectrum resource corresponding to a downlink subframe. Therefore, overall utilization of wireless spectrum resources of a system is improved.