Beam acquisition with receiving beamforming

    公开(公告)号:US11152997B2

    公开(公告)日:2021-10-19

    申请号:US16408450

    申请日:2019-05-09

    Abstract: Briefly, in accordance with one or more embodiments, an apparatus of a user equipment (UE) comprising circuitry to receive a Beamforming Reference Signal (BRS) transmission from an evolved NodeB (eNB) via one or more transmission beams, divide the one or more transmission beams into one or more transmission beam sets, wherein a transmission beam set comprises a number of consecutive orthogonal frequency-division multiplexing (OFDM) symbols, scan consecutive receiving beams for corresponding transmission beam sets to obtain channel measurements to select a transmission beam and a receiving beam based at least in part on the channel measurements, and receive transmissions from the eNB using the selected transmission beam and the selected receiving beam.

    PHYSICAL DOWNLINK CONTROL CHANNEL FOR FIFTH-GENERATION NETWORKS

    公开(公告)号:US20200213982A1

    公开(公告)日:2020-07-02

    申请号:US16807799

    申请日:2020-03-03

    Abstract: Disclosed herein are apparatuses, systems, and methods using or implementing a control channel (PDCCH) design. The PDCCH can occupy an initial number of OFDM symbols of a downlink subframe, while occupying less than the full system bandwidth. The PDCCH can be time division multiplexed (TDM) with a shared channel (PDSCH) or frequency division multiplexed (FDM) with a PDSCH. The PDCCH can further be multiplexed with another PDCCH in a contiguous or non-contiguous region. Resources allocated to the PDCCH can overlap or partially overlap resources allocated to the PDSCH. An Evolved Node-B (eNB) can provide configuration information for the PDCCH design in Radio Resource Control (RRC) signaling to a user equipment (UE), or through use of a Master Information Block (MIB) or System Information Block (SIB).

    Low latency contention based scheduling request

    公开(公告)号:US10555322B2

    公开(公告)日:2020-02-04

    申请号:US15575320

    申请日:2015-12-24

    Abstract: Technology for decreasing latency for contention based scheduling request (SR) transmission is disclosed. A user equipment (UE) can process, for transmission to an enhanced node B (eNB), a DeModulation Reference Signal (DM-RS) that is randomly selected from a set of configured DM-RS sequences or configured by the eNB. The UE can select an SR transmission resource as a function of a DM-RS sequence index or cell identification (ID) based on a predefined mapping rule. The UE can process, for transmission to the eNB, a SR message having a buffer status report (BSR) and UE identification (UE-ID) information on the selected SR transmission resource.

    EVOLVED NODE-B AND USER EQUIPMENT AND METHODS FOR OPERATION IN A COVERAGE ENHANCEMENT MODE

    公开(公告)号:US20200037278A1

    公开(公告)日:2020-01-30

    申请号:US16538823

    申请日:2019-08-13

    Abstract: Embodiments of an eNB to operate in accordance with a coverage enhancement mode are disclosed herein. The eNB may comprise hardware processing circuitry to, during a legacy sub-frame, transmit a system information block (SIB) in legacy SIB frequency resources according to a legacy SIB transmission format and refrain from transmission of channel state information reference signals (CSI-RS). The hardware processing circuitry may be further to, during a first coverage enhancement sub-frame, transmit a first portion of the SIB in first SIB frequency resources included in the legacy SIB frequency resources. The hardware processing circuitry may be further to, during a first coverage enhancement sub-frame, transmit a first set of CSI-RS in first CSI-RS frequency resources that include at least a portion of the legacy SIB frequency resources.

    Device, system and method employing unified flexible 5G air interface

    公开(公告)号:US10548129B2

    公开(公告)日:2020-01-28

    申请号:US15542716

    申请日:2015-08-11

    Abstract: An eNodeB (eNB), user equipment (UE) and method of providing a flexible Radio Access Technology (FRAT) are generally described. The information (resource allocation, partition information and numerology) of at least one of a plurality of RATs used by the eNB is provided to a UE. Each RAT has a flexible subcarrier spacing and symbol duration, which are integer multiples of a base subcarrier spacing and symbol duration, and is associated with at least one of different temporal and frequency resources. The symbol and/or frame structure of each RAT are independent. A Transmission Time Interval (TTI) boundary between the RATs is common, and the RATs comprise a common reference TTI duration. The information of the RATs is provided either via a different RAT than the RAT used by the UE for communication or via a dedicated carrier in the RAT used by the UE for communication.

    Reference signals for initial acquisition in 5G systems

    公开(公告)号:US10326514B2

    公开(公告)日:2019-06-18

    申请号:US15759070

    申请日:2015-12-21

    Abstract: Disclosed herein are apparatuses, systems, and methods for reference signal design for initial acquisition, by receiving a first primary synchronization signal (PSS) and a first secondary synchronization signal (SSS) from a first transmit (Tx) beam, in first contiguous orthogonal frequency division multiplexing (OFDM) symbols of a downlink subframe. A UE can receive at least a second PSS and a second SSS from a second Tx beam in contiguous OFDM symbols of the downlink subframe. A UE can then detect beamforming reference signals (BRSs) corresponding to the first Tx beam and the second Tx beam, based on identification of physical cell ID information and timing information processed from the first PSS, the second PSS, the first SSS, and the second SSS. The UE can select the first Tx beam or the second Tx beam that was received with the highest power, based on the BRSs. Other embodiments are described.

Patent Agency Ranking