Methods, systems, and devices for wireless communications are described. A communication device, such as a user equipment (UE) may receive control signaling indicating a set of configurations including a set of random access channel (RACH) configurations or a set of scheduling request (SR) configurations. At least one RACH configuration of the set of RACH configurations includes a UE-group common RACH configuration or at least one SR configuration of the set of SR configurations includes a UE-group common SR configuration. The UE may select one or more configurations of the set of RACH configurations or the set of SR configurations based on receiving the control signaling and may perform the wireless communications.

Techniques are provided for diminishing (a) interference at GAA CBSD(s), and/or (b) maximum transmit power(s) of each of one or more GAA CBSD(s) by eliminating contention(s) between one or more pairs of spectrum access systems.

A wireless transmit receive unit (WTRU) may be operated in a first scheduling mode for device-to-device communication. In the first scheduling mode, a network entity may schedule resources to be used by the WTRU for device-to-device communications. The WTRU may detect that a radio link failure (RLF) timer is running or has been started. The WTRU may switch from the first scheduling mode for device-to-device communication to a second scheduling mode for device-to-device communication in response to detecting that the radio link failure timer is running or has been started. In the second scheduling mode, the WTRU may select a resource from a resource pool for the WTRU to use for one or more device-to-device communications.

Methods, systems, and devices for wireless communications are described. A base station may transmit, and a user equipment (UE) may receive a group physical control channel signaling, which may configure grant uplink transmissions for a set of UEs including the receiving UE. The group physical control channel signaling may indicate allotted resources for configured grant uplink transmissions. The group physical control channel signaling may further indicate a group physical control channel which a UE may monitor for control messages. The UE may transmit a configured grant uplink transmission in accordance with the group physical control channel signaling. The base station may receive the configured grant uplink transmission and may determine a control message which it may transmit in the group physical control channel based on the configured grant uplink transmission. The UE may receive the control message, and may determine whether to retransmit a configured grant uplink transmission based thereon.

This disclosure provides systems, methods and apparatus for partitioning a physical sidelink shared channel (PSSCH) into multiple shortened PSSCHs (sPSSCHs) within a slot and selecting a transmit power for each sPSSCH. In one aspect, a transmitting user equipment (UE) may select the transmit power for each sPSSCH in accordance with an open loop power control operation. In some examples, the transmitting UE may select a common transmit power for each sPSSCH. Alternatively, the transmitting UE may perform independent power control operations for each sPSSCH and may cap variation in transmit power across sPSSCHs as a result of employing lower and upper bound transmit powers. Additionally, or alternatively, the transmitting UE may provide a default beta offset for the set of receiving UEs via sidelink control information (SCI) part one (SCI-1) and may provide beta offset updates via each SCI part two (SCI-2) transmission in the multiple sPSSCHs.

This disclosure relates to techniques for supporting narrowband device-to-device wireless communication, including possible techniques for performing discovery in an off grid radio system. A wireless device may obtain synchronization with a peer-to-peer communication group. The wireless device may determine the location of the wireless device within the peer-to-peer communication group based at least in part on signal strength of a synchronization signal used to obtain the synchronization. The wireless device may perform peer-to-peer discovery in the peer-to-peer communication group, such that time and frequency resources used by the wireless device to perform the peer-to-peer discovery are determined based at least in part on the location of the first wireless device within the peer-to-peer communication group.

This application provides an information transmission method and apparatus. The method includes: generating, by a network device, first information; and sending, by the network device, the first information to a terminal device, where the first information is used to instruct the terminal device to detect at least one group common PDCCH on N component carriers CCs, N is a positive integer and is less than or equal to M, M is a quantity of CCs configured for the terminal device, and M is a positive integer. Based on this, after receiving the first information, the terminal device detects the at least one group common PDCCH on the N CCs according to the first information.

Methods, systems, and devices for wireless communications are described. A communication device, which may be otherwise known as a user equipment may receive control signaling that configures the communication device with a set of configured grant configurations. The communication device may receive, via a group control channel, group downlink control information (DCI) for a plurality of communication devices that includes the communication device. In some examples, the group control channel may be a group physical downlink control channel. The communication device may communicate a data transmission in accordance with a first configured grant configuration of the plurality of configured grant configurations based on a configuration indication in the group DCI indicating the first configured grant configuration.

Examples refer to communication networks between user equipment, UEs, and a base station BS. Examples refer to communication devices, such as UE(s) and/or BS(s). Full duplexing communications, FDC, may be used to reduce interferences between different UEs.

Mechanisms for calibrating radio frequency branches of a radio transceiver device in a radio access network node. The method includes co-scheduling downlink time/frequency resources for terminal devices in accordance with a set of terminal device identifiers. One of the terminal device identifiers is not of any terminal device served by the radio access network node. The downlink time/frequency resources for this terminal device identifier define time/frequency resources for calibrating the radio frequency branches. The method includes determining a difference in amplitude/phase between the radio frequency branches by analysing a signal as received via an internal coupler unit in the radio transceiver device. The signal represents the time/frequency resources as transmitted over at least some of the radio frequency branches. The method includes calibrating the radio frequency branches by adjusting an amplitude/phase setting of at least one of the radio frequency branches according to the determined difference.