H04B17/327

INTER-INTEGRATED ACCESS AND BACKHAUL NODE CROSS-LINK INTERFACE MEASUREMENT AND REPORTING
20210321281 · 2021-10-14 · ·

Embodiments of the present disclosure describe methods and apparatuses for measurements and reports in integrated access and backhaul networks. An integrated access and backhaul (IAB) node is configured to: receive radio resource control (RRC) signaling from a IAB donor node, the RRC signaling to include configuration information with respect to reference signals of the IAB donor node or one or more neighboring IAB nodes; perform one or more measurements based on the reference signals of the donor node or the one or more neighboring IAB nodes; and transmit measurement report to the IAB donor node, the measurement report to include an indication of results of the one or more measurements.

PRACH resource selection

Systems and methods of selecting a PRACH resource opportunity are described. One of multiple Synchronization Signal Blocks (SSBs) is received. Each SSB has PSSs, SSSs and a PBCH that contain system information. A RACH occasion (RO) is selected from among multiple ROs associated with the SSB. A PRACH is transmitted on resources of the RO. The ROs are configured in a TDM and/or FDM manner. The RO is selected randomly or, if TDM is used, an earliest of the ROs from a UE-initiated RACH transmission in a previous period. A preamble of the RO is selected randomly with equal probability.

PRACH resource selection

Systems and methods of selecting a PRACH resource opportunity are described. One of multiple Synchronization Signal Blocks (SSBs) is received. Each SSB has PSSs, SSSs and a PBCH that contain system information. A RACH occasion (RO) is selected from among multiple ROs associated with the SSB. A PRACH is transmitted on resources of the RO. The ROs are configured in a TDM and/or FDM manner. The RO is selected randomly or, if TDM is used, an earliest of the ROs from a UE-initiated RACH transmission in a previous period. A preamble of the RO is selected randomly with equal probability.

Random access coverage extension in wireless communications

Methods, systems, and devices for wireless communications are described that provide for aggregating random access requests across two or more physical random access channel (PRACH) occasions. Poor channel quality may inhibit the receipt of random access requests, and for user equipments (UEs) located in areas with relatively poor coverage, such aggregated random access requests may have an increased likelihood of successful receipt at a base station. The base station may configure a number of PRACH occasions to be available for aggregation of random access requests. A UE may receive PRACH configuration information from the base station, may aggregate a random access request across two or more PRACH occasions using the PRACH configuration information, and may transmit the aggregated random access request via the PRACH occasions. The base station may also configure one or more PRACH occasions to have a smaller subcarrier spacing for transmission of a random access request.

Random access coverage extension in wireless communications

Methods, systems, and devices for wireless communications are described that provide for aggregating random access requests across two or more physical random access channel (PRACH) occasions. Poor channel quality may inhibit the receipt of random access requests, and for user equipments (UEs) located in areas with relatively poor coverage, such aggregated random access requests may have an increased likelihood of successful receipt at a base station. The base station may configure a number of PRACH occasions to be available for aggregation of random access requests. A UE may receive PRACH configuration information from the base station, may aggregate a random access request across two or more PRACH occasions using the PRACH configuration information, and may transmit the aggregated random access request via the PRACH occasions. The base station may also configure one or more PRACH occasions to have a smaller subcarrier spacing for transmission of a random access request.

A CELL RESELECTION BY ADJUSTING CELL RESELECTION PARAMETER
20210314835 · 2021-10-07 · ·

Provided are a method for adjusting cell reselection procedure. According to an embodiment of the present disclosure, the method includes: receiving information of a first cell from a second cell, determining that the first cell satisfies a cell reselection criteria, and upon initiation of a radio resource control (RRC) connection, performing cell reselection to the first cell by adjusting a cell reselection parameter, and a service is available in the first cell at specific times.

ANTENNA CONFIGURATION SELECTION FOR USER EQUIPMENT

Wireless communications systems and methods related to wireless communications in a system are provided. A user equipment (UE) may determine a plurality of antenna configurations for a plurality of channel frequencies. The UE may determine a set of signal strengths for at least one beam received at one or more antenna configurations of the plurality of antenna configurations for at least one of the channel frequencies. The UE may select, based on the set of signal strengths, a first antenna configuration of the plurality of antenna configurations. After selection of the first antenna configuration, the UE may communicate with a base station, in one or more channel frequencies based on the first antenna configuration.

User terminal and radio communication method

Beam failure detection and/or beam recovery are performed properly. A user terminal according to the present invention has a receiving section that receives a downlink (DL) control channel, and a control section that configures at least part of one or more beams configured for monitoring a beam failure, for monitoring the DL control channel, and the control section configures at least part of one or more beams configured for channel state information (CSI) measurement and/or reporting, for receiving a downlink (DL) data channel.

Methods and user equipment for enabling reception of multimedia broadcast multicast services (MBMS)

Methods performed by a User Equipment (UE) are provided for enabling Multimedia Broadcast Multicast Services (MBMS) reception, the methods include creating, by at least one processor, a unified service guide including a list of at least one MBMS service available over at least one communication path based on information about the at least one MBMS service; selecting, by the at least one processor, a first communication path among the at least one communication path for a selected MBMS service among the list of the at least one MBMS service based on at least one of a signal condition of Multicast Broadcast Single Frequency Network (MBSFN) cell, signal conditions of a serving cell, service availability or a packet switched (PS) enabled stack; and providing, by the at least one processor, the selected MBMS service over the selected communication path.

METHOD AND APPARATUS FOR AVOIDING INTERFERENCE
20210368511 · 2021-11-25 · ·

A system that incorporates the subject disclosure may perform, for example, a method that determines at least one threshold for detecting signal interference in a first plurality of segments occurring in a first radio frequency spectrum of a first wireless communication system, detecting a pattern of recurrence over time of signal interference in a segment of the first plurality of resource blocks according to the at least one threshold, and performing one or more mitigation steps to mitigate the signal interference without filtering the signal interference where the one or more mitigation steps include at least one of transmitting signals out of phase from the signal interference, adjusting transmit power, increasing power in a resource block of a long term evolution communication session, performing beam steering, or changing time parameters for the resource block without changing to a new resource block. Other embodiments are disclosed.