Certain aspects of the present disclosure provide techniques for multi-universal subscriber identification module (USIM) and dual connectivity operation. A method performed by a user equipment (UE) includes establishing a first access link, associated with a first SIM of the UE, for communicating with a first base station; establishing a second access link, associated with the first SIM of the UE, for communicating with a second base station; establishing a third access link associated with a second SIM of the UE; determining a need for reduced capability on the second access link to communicate on the third access link; transmitting an indication of the need for the reduced capability to the second base station; and communicating on the third access link using the second SIM simultaneously with communicating on the second access link using the first SIM, wherein communicating on the second access link is at the reduced capability.

A method for wireless communication performed by a user equipment (UE) includes receiving a reference signal (RS) configuration from a first base station. The RS configuration indicates an RS identifier (ID) of an RS associated with a second base station. The method also includes receiving the RS from the second base station based on receiving the RS configuration. The method further includes transmitting, to the first base station, an interference measurement report associated with receiving the RS from the second base station. The interference measurement report indicates the RS ID associated with the RS from the second base station.

Methods, systems, and devices for wireless communications are described in which multiple operators may perform spectrum sharing using shared radio units (RUs), where the multiple different operators can access a same RU for communications with a user equipment (UE). A shared RU may receive requests for resources from two or more network nodes of two or more different network operators, for wireless resources in a first time period. The RU may determine a first resource allocation for the first time period based on different priorities of the different network operators. A first network operator may have a higher priority than a second or third network operator, and resources may be allocated to the first network operator ahead of the second or third network operators. The RU may transmit the first resource allocation to each of the different network nodes that transmitted requests for resources.

User equipment (UE)—initiated accesses within a cellular network are optimized to account for cell size and to reduce signaling overhead. A fixed set of preamble parameter configurations for use across a complete range of cell sizes within the cellular network is established and stored within each UE. A UE located in a given cell receives a configuration number transmitted from a nodeB serving the cell, the configuration number being indicative of a size of the cell. The UE selects a preamble parameter configuration from the fixed set of preamble parameter configurations in response to the received configuration number and then transmits a preamble from the UE to the nodeB using the preamble parameter configuration indicated by the configuration number.

Disclosed are a method and apparatus for determining an occasion of an HARQ-ACK feedback. The method includes: in response to one DCI scheduling PDSCHs of more than one cell, taking a timeslot in which an end occasion of a PDSCH of one of the scheduled cells is located as a reference timeslot, calculating a timeslot in which an occasion of an HARQ-ACK feedback is located according to the following equation: the timeslot in which the occasion of the HARQ-ACK feedback is located=n+k, where n represents the reference timeslot, and k represents a timeslot offset, indicated in the DCI, between the timeslot in which the occasion of the HARQ-ACK feedback is located and the reference timeslot.

A wireless communication method and a terminal device are described. The method can comprise: acquiring frequency domain resource information corresponding to a first slot on a first frequency band, wherein the first frequency band comprises a first carrier or a first bandwidth part, the first slot corresponds to at least two frequency domain resources, the at least two frequency domain resources comprise a first frequency domain resource and a second frequency domain resource, the first frequency domain resource is used for transmitting a first synchronization signal block (SSB), and the second frequency domain resource is used for transmitting a first channel or a first signal. A first slot on a first frequency band corresponds to at least two frequency domain resources. The first frequency domain resource is used for transmitting a first SSB, and a second frequency domain resource is used for transmitting a first channel or a first signal.

An apparatus is provided, the apparatus being connectable to at least one user equipment by a radio connection, and being connectable to at least one centralized unit, the apparatus comprising at least one processor and at least one memory including computer program code, the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform: sending to at least one centralized unit sharing information which concern information about sharing of same physical radio resources of the apparatus with more than one centralized unit.

According to one embodiment, a wireless communication device includes a control unit and a wireless unit. The control unit is configured to confirm whether or not a notification that a first frame was successfully transmitted is received from a second communication device. The control unit is configured to transmit, in a case where the notification is not received, the first frame to a first communication device via the wireless unit, and transmit, in a case where a response frame with respect to the first frame is successfully received from the first communication device, the notification to the second communication device. The control unit is configured to discard, in a case where the notification is received, the first frame.

Wireless devices may receive channel state information (CSI) measurement resources for a plurality of cells, including cells of a first transmission point and cells of a second transmission point. The wireless device may measure CSI for each cell, and may quantize the measured CSI jointly across the cells. The wireless device may send the jointly quantized CSI to a base station, and the jointly quantized CSI may be used in communications via the first transmission point and the second transmission point.

Wireless communications systems and methods related to uplink (UL) communications in a wireless network are provided. In some instances, a wireless communication device is configured to: transmit, to a second wireless communication device, a transmission grant indicating a transmission period; transmit a configuration indicating a plurality of reference signal symbols within the transmission period and an association between a plurality of starting locations and the plurality of reference signal symbols; monitor, in response to the transmission grant, for a communication signal from the second wireless communication device in the transmission period; and identify, upon detection of the communication signal, a starting location of the communication signal from among the plurality of starting locations within the transmission period.