RADIO (NR) UNLICENSED PHYSICAL UPLINK CONTROL CHANNEL WITH INTERLACED STRUCTURE

    公开(公告)号:US20210135803A1

    公开(公告)日:2021-05-06

    申请号:US16640045

    申请日:2018-08-17

    Abstract: Technology for a next generation node B (gNB), operable for new radio (NR) unlicensed communication. The gNB can encode a discovery reference signal (DRS) in a single subframe. The DRS comprising a first synchronization signal (SS) block comprising a plurality of contiguous orthogonal frequency division multiplexed (OFDM) symbols in the single subframe. The DRS comprising a second SS block comprising a plurality of contiguous OFDM symbols in the single subframe. The DRS comprising a plurality of additional OFDM symbols for an SS block in the single subframe. The gNB can send the DRS in the single subframe to a user equipment (UE). The gNB can have a memory interface configured to send to a memory the DRS.

    Transmission of (E)PDCCH within partial subframe in licensed assisted access (LAA)

    公开(公告)号:US10555339B2

    公开(公告)日:2020-02-04

    申请号:US15765764

    申请日:2016-03-28

    Abstract: Techniques for transmission of a physical downlink control channel (PDCCH) or enhanced PDCCH (EPDCCH) within a partial subframe of a license assisted access (LAA) burst are discussed. One example apparatus comprises a processor configured to generate a LAA burst; generate one or more downlink control channel messages that comprise at least one of PDCCH messages or EPDCCH messages; generate a physical layer encoding of the LAA burst comprising a first partial subframe, wherein the first partial subframe comprises a physical layer encoding of the one or more downlink control channel messages; and output the first partial subframe comprising the physical layer encoding of the one or more control channel messages to transmitter circuitry for subsequent transmission via an unlicensed carrier.

    PARTIAL UPLINK SUBFRAME TRANSMISSIONS ON UNLICENSED CARRIERS

    公开(公告)号:US20190327117A1

    公开(公告)日:2019-10-24

    申请号:US16465121

    申请日:2018-03-20

    Abstract: Technology for a user equipment (UE), operable for an uplink partial subframe transmission on an unlicensed carrier is disclosed. The UE can select one or more uplink (UL) partial subframe configurations based on one or more prospective lengths of a listen before talk (LBT) period, wherein each prospective length of the LBT period provides a prospective starting time. The UE can encode data for each of the one or more UL partial subframe configurations to form one or more UL partial subframe configuration encodings. The UE can identify an actual LBT period. The UE can select one of the one or more UL partial subframe configuration encodings for UL transmission of the data on the unlicensed carrier based on the actual LBT period and a corresponding prospective starting time.

    COVERAGE ENHANCEMENT FOR UNLICENSED INTERNET OF THINGS (U-IOT)

    公开(公告)号:US20190288811A1

    公开(公告)日:2019-09-19

    申请号:US16349963

    申请日:2017-11-15

    Abstract: Technology for a next generation node B (gNB) operable to provide coverage enhancement for unlicensed internet of of things (IoT) is disclosed. The gNB can encode, for transmission on a physical downlink shared channel (PDSCH), data in a selected subframe. The gNB can encode, for transmission to a user equipment (UE), a number of repetitions in time, a value of Ni, for the data to be transmitted on the PDSCH, wherein the value of N1 is a positive integer value. The gNB can encode the data on N1 consecutive subframes for repeated transmission of the data in the selected subframe to the UE. The gNB can include a memory interface configured to receive from a memory the data in the selected subframe.

    Devices and method using transmit power control and scheduling for LTE unlicensed band operation

    公开(公告)号:US09888445B2

    公开(公告)日:2018-02-06

    申请号:US15327167

    申请日:2015-08-21

    Abstract: An enhanced NodeB (eNB), user equipment (UE) and communication methods therebetween using an unlicensed channel of an unlicensed band are generally described. The eNB measures an interference power level (IPL) of the unlicensed channel at the eNB and determine a transmit power level (TPL) for a downlink transmission based on the IPL, the TPL decreasing with increasing IPL. Feedback including unlicensed channel conditions measured by the UE is used by the eNB to determine the UE-eNB proximity. The eNB determines whether to transmit the downlink transmission to the UE based on the IPL and the proximity; as the IPL increases, the eNB services increasingly proximate UEs until, when the IPL exceeds a predetermined threshold, the eNB does not service any UE using the unlicensed channel. The eNB schedules and transmits the downlink transmission to the UE using the transmit power level.

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