OTDOA (OBSERVED TIME DIFFERENCE OF ARRIVAL) POSITIONING ENHANCEMENT BY USING HETEROGENEOUS REFERENCE SIGNALS

    公开(公告)号:US20220276335A1

    公开(公告)日:2022-09-01

    申请号:US17749241

    申请日:2022-05-20

    Applicant: Apple Inc.

    Abstract: Techniques for observed time difference of arrival (OTDOA) positioning based on heterogeneous reference signals (RSs) are discussed. One example apparatus configured to be employed within a user equipment (UE) comprises receiver circuitry, a processor, and transmitter circuitry. The receiver circuitry can receive, from each of a plurality of evolved Node Bs (eNBs), one or more RSs of each of a plurality of distinct types of RSs. The processor can determine, for each of the eNBs, a time of arrival (TOA) of the one or more RSs of each of the plurality of distinct types of RSs; and compute, for each of the eNBs, a reference signal time difference (RSTD) based at least in part on the TOAs of the one or more RSs of each of the plurality of distinct types of RSs. The transmitter circuitry can transmit the RSTD computed for each of the eNBs.

    Techniques in measurement gap configurations in new radio (NR)

    公开(公告)号:US11363477B2

    公开(公告)日:2022-06-14

    申请号:US16408053

    申请日:2019-05-09

    Applicant: Apple Inc.

    Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for beam management techniques in New Radio (NR) Standalone (SA) applications. Various embodiments describe how to configure one or more measurement gaps in an NR SA network so that a UE may apply the same or different measurement gaps while operating with various technologies or services in various frequency ranges. Other embodiments may be described and claimed.

    NEW RADIO SECONDARY CELL ACTIVATION WITH FINE-BEAM CHANNEL STATE INFORMATION

    公开(公告)号:US20220078801A1

    公开(公告)日:2022-03-10

    申请号:US17416770

    申请日:2020-03-26

    Applicant: Apple Inc.

    Abstract: An electronic device may receive, from a radio node, a measurement configuration associated with a wireless communication system. In response, the electronic device may perform measurements using narrow beam patterns based at least in part on a network configuration, where the narrow beam patterns are narrower than a wide beam pattern of the electronic device. Furthermore, performing the measurements using the narrow beams pattern may include performing a beam-pattern search up to the network configuration. Then, the electronic device may perform an SCell activation procedure of an SCell with the radio node. Note that the SCell activation procedure may include reporting, to the radio node, CSI of a narrow beam pattern of the SCell that is to be activated, where the narrow beam pattern is narrower than the wide beam pattern of the electronic device, and the narrow beam pattern is based at least in part on the measurements.

    System, method, and product for selecting timing information based on subcarrier spacing

    公开(公告)号:US11265837B2

    公开(公告)日:2022-03-01

    申请号:US16480272

    申请日:2018-03-14

    Applicant: Apple Inc.

    Abstract: User equipment performs autonomous time adjustment that includes selecting a Timing Error Limit (i.e. Te_NR) and Maximum Autonomous Time Adjustment Step (i.e. Tq_NR) based on bandwidth (BW) and subcarrier spacing (SCS). In one embodiment, given a certain downlink BW, if the SCS=x(kHz) and the Te_NR of this SCS is N, then the Te_NR of SCS=x/2(kHz) is 2*N. Given a certain downlink BW, if the SCS=x(kHz) and the Te_NR of this SCS is N, then the Te_NR of SCS=2*x(kHz) is N/2. For example, given BW=10 MHz, if the Te_NR of SCS=30kHz is n*Ts_NR (TS_NR is the basic timing unit for NR system), then the Te_NR of SCS=60 kHz is N/2*Ts_NR, and the Te_NR of SCS=15 kHz is 2*N*Ts_NR.

    DETERMINING TIMING DIFFERENCES BETWEEN PRIMARY AND SECONDARY COMPONENT CARRIERS HAVING VARIABLE TRANSMISSION TIME INTERVALS

    公开(公告)号:US20210410094A1

    公开(公告)日:2021-12-30

    申请号:US16476397

    申请日:2018-02-06

    Applicant: Apple Inc.

    Abstract: Methods and architectures to determine whether carrier aggregation (CA) component carrier signals transmitted or received by a user equipment (UE) device with a primary serving cell (PCell) and one or more secondary serving cells (SCell) exceed a maximum transmission timing difference compare a relative difference of signals derived from subframe boundaries, a subslot transmission time interval (sTTI) boundary or a combination thereof, with a maximum receive timing threshold value. In the uplink, timing advance groups (TAGs) for the PCell and/SCells may be compared by the UE to a maximum transmit timing threshold value. If the maximum thresholds are exceeded, the SCell may be dropped or changed to avoid UE from exceeding its power maximums.

    UE capability indication to positioning server

    公开(公告)号:US11134464B2

    公开(公告)日:2021-09-28

    申请号:US16487406

    申请日:2018-04-02

    Applicant: Apple Inc.

    Inventor: Jie Cui Yang Tang

    Abstract: Embodiments of the present disclosure describe methods, apparatuses, storage media, and systems for delivering UE capability indication to a positioning server in a wireless communication network. A user equipment (UE) or access note (AN) may notify a positioning server of UE capability information associated with positioning measurements so that the positioning server may determine corresponding positioning measurement configurations based on acknowledgement of such UE capability information in terms of the positioning measurement. Embodiments describe UE capability indications to a positioning server that may enable flexible deployment and integration of various types of UEs. Other embodiments may be described and claimed.

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