Disclosed are techniques for wireless communication. In an aspect, a receiver user equipment (UE) receives, from a transmitter UE, a sidelink reference signal over a sidelink established with the transmitter UE, and transmits a sidelink timing adjust (TA) command to the transmitter UE based on the sidelink reference signal, the sidelink TA command requesting the transmitter UE to adjust a sidelink transmit time of the transmitter UE. In an aspect, a transmitter UE transmits, to a receiver UE, a sidelink reference signal over a sidelink established with the receiver UE, and receives a first sidelink TA command from the receiver UE based on the sidelink reference signal, the sidelink TA command requesting the transmitter UE to adjust a sidelink transmit time of the transmitter UE.

Methods and devices are provided to enable a cluster of user equipments (UEs) to receive a multicast signal over a first spectrum band and access a second spectrum band as a single virtual entity for device-to-device (D2D) mutual broadcast within the cluster. In an embodiment, a first UE in a cluster receives a multicast signal from a wireless network over the first spectrum band, the multicast signal including downlink information targeted to a second UE in the cluster. The first UE performs in a contention procedure for a transmission opportunity (TXOP) in the second spectrum band in accordance with group listen-before-talk (LBT) parameters configured for the cluster. If the contention procedure has acquired a TXOP in the second spectrum band for the cluster, the first UE sends at least a portion of the downlink information to the second UE over the second spectrum band during the TXOP.

Aspects of the present disclosure provide various mechanisms for protection of MU transmissions, such as UL MU MIMO and UL OFDMA. The mechanisms may allow for various NAV setting options for UL MU MIMO or UL OFDMA. Aspects of the present invention relate to a processing system configured to generate a first frame configured to trigger multiple transmissions from multiple devices, wherein the first frame has a duration field set to a value corresponding to a duration that covers at least the multiple transmissions, and an interface configured to output the frame for transmission

A user equipment (UE) and base station (BS) in a wireless communication network. The UE includes a receiver configured to receive at least one semi-persistent scheduling (SPS) configuration among a plurality of SPS configurations from a BS. Each of the SPS configurations configures the UE with a different periodicity of a sidelink transmission to be transmitted to another UE. The UE also includes a transmitter configured to transmit the sidelink transmission in the different periodicity according to the at least one of the plurality of SPS configurations. The BS includes a controller configured to select at least one SPS configuration among a plurality of SPS configurations for a UE. Each of the SPS configurations configures the UE with a different periodicity of a sidelink transmission to be transmitted to another UE. The BS also includes a transmitter configured to transmit the selected at least one SPS configuration to the UE.

Inter-cell interference can be reduced by re-assigning uplink scheduling responsibilities for a user equipment (UE) from a controller associated with a serving access point (AP) to a controller associated with a neighboring AP, as the controller associated with the neighboring AP may have better access to channel information corresponding to interference experienced by the neighboring AP as a result of uplink transmissions from the UE. After the re-assignment, the controller associated with the neighboring AP may independently schedule an uplink transmission parameter (e.g., a transmit power level, a modulation coding scheme level and/or a precoder) of the UE in a manner that mitigates inter-cell-interference in the neighboring cell.

Certain aspects of the present disclosure provide techniques for autonomous uplink (UL) cancellation. A method that may be performed by a user equipment (UE) includes receiving one or more configurations scheduling a communication with at least one base station (BS), wherein the one or more configurations schedule a UL transmission and a DL transmission such that the UL transmission and the DL transmission overlap in a time domain, determining whether to cancel at least a portion of the UL transmission based on one or more conditions associated with the UL transmission or the DL transmission, wherein the determination of whether to cancel at least the portion of the UL transmission is in response to the UL transmission and the DL transmission overlapping in the time domain, and performing the communication based on the determination, in accordance with aspects of the present disclosure.

An access node (100) of a wireless communication network assigns a selection probability to each of a plurality of frequency channels. On the basis of the selection probabilities, the access node (100) randomly selects one of the frequency channels as current operating frequency channel of the access node (100). Further, the access node (100) determines a channel quality of the current operating frequency channel. In response to the channel quality of the current operating frequency channel complying with a configured selection criterion, the access node (100) maintains the current operating frequency channel. In response to the channel quality of the current operating frequency channel not complying with the configured selection criterion, the access node selects, randomly on the basis of the selection probabilities, a further one of the frequency channels for evaluation and compares a channel quality of the frequency channel selected for evaluation to the channel quality of the current operating frequency channel. In response to the channel quality of the frequency channel selected for evaluation being higher than the channel quality of the current operating frequency channel, the access node (100) sets the frequency channel selected for evaluation as new operating frequency channel of the access node (100). In response to the channel quality of the frequency channel selected for evaluation not being higher than the channel quality of the current operating frequency channel, the access node (100) maintains the current operating frequency channel and decrementing the selection probability assigned to the frequency channel selected for evaluation.

A method may include allocating transmission resource patterns among multiple terminals. The transmission resource patterns may be associated with vectors from multiple matrices. Each element of the matrices may correspond to a different frequency-domain resource unit and each element position within the vector may correspond to a different time-domain resource unit. Each of the elements may occur at least twice within each matrix of the multiple matrices. Each element of each matrix of the multiple matrices may be unique relative to each other element of the same column of the same matrix and may be unique relative to each other element of the same row of the same matrix.

The present invention relates to generating an interference pattern for controlling inter-cell interference, a method for signaling therefor, and an apparatus utilizing the method. The method for signaling an interference pattern according to the present invention may comprise the steps of: determining the length and cyclic shift offset for a first interference pattern to be allocated to a set reference resource from among interference pattern sets; generating a cell-specific sequence to which the cyclic shift offset of the first interference pattern has been applied; and allocating the first interference pattern and cell-specific sequence to a resource and transmitting same.

The present invention relates to a wireless communication system. More particularly, the present invention relates to a method for transmitting uplink control information and a device therefor, the method comprising the steps of: forming a plurality of serving cells each having different UL-DL configurations; receiving one or more signals requiring a HARQ-ACK response from M (M≧1) number of subframes; and executing the process for transmitting the HARQ-ACK response to the one or more signals in a specific subframe corresponding to the M number of subframes, wherein, only when the specific subframe is set as an uplink in all of the plurality of serving cells, the HARQ-ACK response to the one or more signals are transmitted through the specific subframe.