Patent classifications
H04W56/001
MODIFIED SYNCHRONIZATION SIGNAL BLOCK FOR NETWORK ENERGY SAVING
Aspects presented herein may enable a transmitting entity, such as a base station, to indicate to one or more receiving entities that SSBs of one or more cells (which may include the transmitting entity) are to be transmitted with modified configurations. The method may also enable the transmitting entity to transmit modified SSBs to enable network energy saving. In one aspect, a base station configures one or more cells of a plurality of cells with one or more modified SSBs associated with an ES mode. The base station transmits an indication of the one or more cells associated with a transmission of the one or more modified SSBs, the transmission of the one or more modified SSBs corresponding to an ES mode at the one or more cells, the one or more cells being associated with the base station or at least one other base station.
PHYSICAL BROADCAST CHANNEL (PBCH) RESOURCE ALLOCATION FOR REDUCED BANDWIDTH DEVICES
This disclosure provides systems, methods, and devices for wireless communication that support allocation of resources for a physical broadcast channel (PBCH) for reduced bandwidth devices. In a first aspect, a method includes monitoring, by a user equipment (UE) configured for reduced bandwidth operation, at least a subset of a first set of time and frequency resources allocated to a synchronization signal block (SSB) for UEs configured for non-reduced bandwidth operation. The SSB includes synchronization signals and a PBCH. The method includes monitoring, by the UE, a second set of time and frequency resources allocated to the PBCH for UEs configured for reduced bandwidth operation. The method includes receiving, by the UE, the synchronization signals and the PBCH within at least the subset of the first set of time and frequency resources and the second set of time and frequency resources. Other aspects and features are also claimed and described.
CONTROL RESOURCE SET (CORESET) ALLOCATION FOR REDUCED BANDWIDTH DEVICES IN 5G-NR
This disclosure provides systems, methods, and devices for wireless communication that support reduced bandwidth devices and particularly, allocation of control resource sets for reduced bandwidths. In a first aspect, a method of wireless communication includes receiving, from a base station at a user equipment (UE) having a first type, a master information block (MIB) within a physical broadcast channel (PBCH). The MIB includes CORESET size information and search space information for devices having a second type. The method also includes selecting a CORESET size from a plurality of preconfigured CORESET sizes based on a subcarrier spacing used to communicate with the base station. The method further includes monitoring a set of time and frequency resources to receive a message from the base station. The set of time and frequency resources has the selected CORESET size. Other aspects and features are also claimed and described.
SPARSE TRANSMISSION OF DISCOVERY SIGNALS FOR NETWORK ENERGY SAVING
Aspects presented herein may provide various power saving techniques and features for network nodes by configuring different power saving modes for the network nodes. Aspects presented herein may enable a network node to transmit SSBs less frequently to reduce an amount of power utilized. In one aspect, a base station configures a plurality of SSB Tx periodicities associated with a plurality of ES modes. The base station transmits an indication of the plurality of SSB Tx periodicities associated with the plurality of ES modes. The base station transmits one or more SSBs based on one of the plurality of SSB Tx periodicities associated with one of the plurality of ES modes.
TIMING-AWARE SCHEDULING
Wireless communications systems and methods related to monitoring and/or measuring synchronization signal blocks (SSBs) in one or more beam directions based on timing offsets associated with the beam directions are provided. In some aspects, a method of wireless communication performed by a user equipment (UE) includes: receiving, from a wireless communication device, a synchronization signal block (SSB); and measuring, based on timing offsets for each of a plurality of beams of the SSB, one or multiple beams of the SSB. In some instances, the UE determines a number of beams of the SSB to measure based on the timing offsets for each of the plurality of beams of the SSB.
Cell Grouping for Wireless Communications
Wireless communications may use a plurality of cell groups. A downlink-uplink cell may be assigned to each cell group of a plurality of cell groups, and each of a plurality of downlink-only cells may be assigned to a cell group of the plurality of cell groups. A wireless device may transmit an uplink signal via a downlink-uplink cell based on a timing advance command.
DISTRIBUTED ANTENNA SYSTEM IMPLEMENTED OVER OPEN RADIO ACCESS NETWORK
One embodiment is directed to an open radio access network (O-RAN) distributed antenna system (DAS) that comprises a central access node (CAN) configured to communicatively couple at least one O-RAN distributed unit (O-DU) to the O-RAN DAS, where the O-DU is configured to communicate with a single O-RAN remote unit (O-RU) entity. The O-RAN DAS also includes a plurality of O-RAN remote units (O-RUs) communicatively coupled to the CAN over a fronthaul network, where the O-DU, CAN, and O-RUs are configured to natively use an O-RAN fronthaul interface to communicate fronthaul data over the fronthaul network. The CAN is configured to appear to the O-DU as the single O-RU entity for a cell served by the O-DU even though the CAN is configured to serve the cell using multiple O-RUs that form a simulcast group for that cell. One or more CANs can be used. Other embodiments are disclosed.
NEIGHBORHOOD MANAGEMENT BETWEEN WIFI AND UNLICENSED SPECTRUM RADIOS
Techniques for neighborhood management between WiFi and unlicensed spectrum radios. A wireless access point (AP), including a first radio, identifies a neighboring second radio operating using at least a portion of an unlicensed radio spectrum, based on a time that the AP receives a transmission from the second radio using a frequency within the unlicensed radio spectrum. Transmission between the first radio and the second radio is synchronized by identifying a clock offset between a first clock relating to the first radio and a second clock relating to the second radio.
SIDELINK SS/PSBCH BLOCK STRUCTURE FOR UNLICENSED OPERATION
Methods and apparatuses for a sidelink synchronization signals and physical sidelink broadcast channel block (S-SS/PSBCH) block structure for unlicensed operation. A method of a user equipment (UE) in a wireless communication system includes determining a subcarrier spacing (SCS) of a sidelink synchronization signals and physical sidelink broadcast channel (S-SS/PSBCH) block; determining a set of interlaced resource blocks (RBs). The set of interlaced RBs includes RBs with a uniform interval k. The method further includes mapping the S-SS/PSBCH block to the set of interlaced RBs and transmitting, to another UE, the S-SS/PSBCH block over a sidelink channel.
METHOD AND DEVICE FOR PERFORMING CONFIGURED GRANT-BASED SMALL DATA TRANSMISSION
A method for a UE for performing a CG-SDT is provided. The method includes receiving a CG-SDT-specific RSRP threshold from a BS, the CG-SDT-specific RSRP threshold being configured to the UE for an SSB selection for the CG-SDT; in a case that one or more SSBs with RSRPs above the CG-SDT-specific RSRP threshold are available, performing the SSB selection to determine a first SSB index from one or more SSB indices of the one or more SSBs; and performing an initial transmission of the CG-SDT or a subsequent new transmission of the CG-SDT through a first UL grant corresponding to the first SSB index.