CHANNEL OCCUPANCY TIME INDICATION FOR NR BASED UNLICENSED OPERATION

    公开(公告)号:US20220022248A1

    公开(公告)日:2022-01-20

    申请号:US17290281

    申请日:2019-11-01

    Applicant: Apple Inc.

    Abstract: Devices and methods of providing channel occupancy time (COT) are described. After a gNB acquires an unlicensed channel for a COT, the gNB indicates the COT length to a UE using a PDCCH having a DCI formed in accordance with DCI format 2_0. The slot format of the last slot of the COT is indicated using a reserved slot format indicator that is reserved to indicate the end of the COT. The reserved slot format indicator indicates a last slot format of available slot formats of DCI format 2_0. Dummy bits fill the DCI after the reserved slot format indicator. Alternatively, to indicate the COT length, a COT field dedicated to providing the COT is used in the DCI or the CRC is masked using a slot format indication Radio Network Temporary Identifier.

    Scrambling of Physical Broadcast Channel (PBCH)

    公开(公告)号:US20220330208A1

    公开(公告)日:2022-10-13

    申请号:US17825035

    申请日:2022-05-26

    Applicant: Apple Inc.

    Abstract: A user equipment (UE) can include processing circuitry configured to decode physical broadcast channel (PBCH) information received from a base station (BS). The decoded PBCH information includes a scrambled PBCH payload and an unscrambled bit sequence. A scrambling sequence is generated based on time information signaling within the unscrambled bit sequence. The scrambled PBCH payload is de-scrambled using the scrambling sequence, to obtain master information block (MIB) information. System information block (SIB) information is decoded based on the MIB information. The decoded PBCH information includes cyclic redundancy check (CRC) information. The scrambled PBCH payload and the unscrambled bit sequence can be verified based on the CRC information. The time information signaling includes one or more bits of a system frame number (SFN).

    TWO-STEP RACH FOR NEW RADIO (NR) WITH UNLICENSED OPERATION

    公开(公告)号:US20220191935A1

    公开(公告)日:2022-06-16

    申请号:US17439886

    申请日:2020-03-26

    Applicant: Apple Inc.

    Abstract: Systems and methods are described for a 2-Step Random Access Channel (RACH) for New Radio (NR) with unlicensed operation. The systems and methods include at least, generating, by a user equipment (UE), a MsgA of a random access channel (RACH) procedure associated with the NR network, the MsgA having a physical random access channel (PRACH) occasion and an associated physical uplink shared channel (PUSCH) occasion for transmission during the RACH procedure, and transmitting, by the UE, the MsgA to a base station (gNB) over unlicensed spectrum of the NR network during the RACH procedure.

    TIME-DOMAIN RESOURCE ALLOCATION FOR CONFIGURED GRANT TRANSMISSIONS IN NEW RADIO (NR) SYSTEMS

    公开(公告)号:US20220191916A1

    公开(公告)日:2022-06-16

    申请号:US17438261

    申请日:2020-03-20

    Applicant: APPLE INC.

    Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for time-domain resource allocation for configured grant transmissions in New Radio (NR) systems. For example, some embodiments are directed to an electronic device including radio front end circuitry and processor circuitry coupled to the radio front end circuitry. The processor circuitry can be configured to generate a radio resource control (RRC) signal including a bitmap for configuring time-domain resources for configured grant (CG) operation. The processor circuitry can be further configured to transmit, using the radio front end circuitry, the RRC signal to a user equipment (UE) to configure the time-domain resources. The bitmap comprises a plurality of resource units and wherein each resource unit in the plurality of resource units corresponds to a symbol, a

    RESOURCE ALLOCATION AND USER MULTIPLEXING CAPACITY ENHANCEMENTS FOR INTERLACE BASED PHYSICAL UPLINK CONTROL CHANNEL FORMATS IN NEW RADIO (NR)-UNLICENSED

    公开(公告)号:US20220166586A1

    公开(公告)日:2022-05-26

    申请号:US17440944

    申请日:2020-03-30

    Applicant: Apple Inc.

    Abstract: Systems and methods are described for a resource allocation and user multiplexing capacity enhancements for interlace based physical uplink control channel (PUCCH) formats in new radio (NR) using unlicensed spectrum (NR-U). The systems and methods can include at least generating, by the UE, an uplink signal according to a physical uplink control channel (PUCCH) format and having “n” number of physical resource blocks (PRBs) that are mapped in an interlaced manner across a frequency domain on a orthogonal frequency division multiplexing (OFDM) symbol, wherein “n” is an integer multiple of a number of PRBs per interlace, and transmitting, by the UE, the uplink signal over a PUCCH that utilizes unlicensed spectrum in a new radio wireless network.

    CHANNEL OCCUPANCY TIME (COT) STRUCTURE IN NEW RADIO (NR) SYSTEMS OPERATING ON UNLICENSED SPECTRUM

    公开(公告)号:US20220131725A1

    公开(公告)日:2022-04-28

    申请号:US17427498

    申请日:2020-02-13

    Applicant: Apple Inc.

    Abstract: Some embodiments of this disclosure include systems, apparatuses, methods, and computer-readable media for use in a wireless network for generating and using slot format indicator (SFI) and channel occupancy time (COT) structure in new radio (NR) systems operating on unlicensed spectrum. For example, some embodiments are directed to a base station that includes radio front end circuitry and processor circuitry. The processor circuitry can be configured to generate a slot format indicator (SFI) associated with a channel occupancy time (COT) structure. The SFI indicates whether one or more slots associated with the COT structure are to be used for downlink (DL) symbols, uplink (UL) symbols, or flexible symbols. The flexible symbols form one or more gaps in the COT structure in response to the flexible symbols not being overridden as a DL transmission or a UL transmission. The processor circuitry can further be configured to transmit the SFI to a user equipment (UE).

    RESOURCE ALLOCATION FOR PHYSICAL UPLINK CONTROL CHANNEL DURING INITIAL ACCESS IN NR-UNLICENSED

    公开(公告)号:US20220086824A1

    公开(公告)日:2022-03-17

    申请号:US17414486

    申请日:2020-01-09

    Applicant: Apple Inc.

    Abstract: Systems, apparatuses, methods, and computer-readable media are provided for use in a wireless network for resource allocation during initial access. Some embodiments are directed to an apparatus including processor circuitry and radio front circuitry. The processor circuitry can be configured to determine, in accordance with a predetermined requirement, multiple physical resource blocks (PRBs) to be used for transmitting a physical uplink control channel (PUCCH) before a dedicated PUCCH resource configuration. The radio front end circuitry coupled with the processor circuitry can be configured to transmit the PUCCH using the determined PRBs and before the dedicated PUCCH resource configuration. The dedicated PUCCH resource configuration can include initial access before Radio Resource Control (RRC) connection setup.

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