Wireless Device Preferred Bandwidth Part Configuration and Duty Cycle Indication

    公开(公告)号:US20190281598A1

    公开(公告)日:2019-09-12

    申请号:US16186350

    申请日:2018-11-09

    Applicant: Apple Inc.

    Abstract: This disclosure relates to techniques for a wireless device to indicate a preferred bandwidth part and duty cycle in a cellular communication system. A wireless device and a cellular base station may establish a radio resource control connection. The wireless device may transmit an indication of a preferred bandwidth part, or a preferred communication duty cycle, or both, to the cellular base station. The cellular base station may select a bandwidth part, or communication duty cycle, or both, based at least in part on the indication provided by the wireless device, and may transmit an indication of the selected bandwidth part, communication duty cycle, or both, to the wireless device. The cellular base station and the wireless device may perform cellular communication using the selected bandwidth part, communication duty cycle, or both.

    Power Saving for Channel State Information Reference Signal Reception

    公开(公告)号:US20190281546A1

    公开(公告)日:2019-09-12

    申请号:US16295431

    申请日:2019-03-07

    Applicant: Apple Inc.

    Abstract: A base station and mobile device (UE) may coordinate transmission of reference signals and reception of corresponding channel state information (CSI) reports. If a periodic reference signal is scheduled for transmission outside the on-duration period of the UE, even if the reference signal corresponds to a periodic CSI report scheduled to be transmitted by the UE during the on-duration period, the base station may not transmit the periodic reference signal, thereby allowing the UE not to prematurely exit a low-power state. The base station may instead transmit an aperiodic reference signal at a specified point in time later than the scheduled transmission of the periodic reference signal. The UE may receive the aperiodic reference signal and either transmit the periodic CSI report or an aperiodic CSI report in response, depending on how close to the start of the on-duration period the transmission of the periodic CSI report is scheduled.

    Asymmetric Bandwidth Support and Dynamic Bandwidth Adjustment

    公开(公告)号:US20190132830A1

    公开(公告)日:2019-05-02

    申请号:US15571577

    申请日:2016-11-05

    Applicant: Apple Inc.

    Abstract: This disclosure relates to techniques for supporting asymmetric uplink and downlink bandwidth allocations for a wireless device, and for dynamically modifying the bandwidth allocations for a wireless device, in a wireless communication system. A cellular communication link may be established between a base station and a wireless device. The base station may determine an uplink bandwidth allocation and a downlink bandwidth allocation for the wireless device. The uplink bandwidth allocation and the downlink bandwidth allocation may be selected based on different criteria and may include different amounts of bandwidth. Indications of the uplink bandwidth allocation and the downlink bandwidth allocation may be provided to the wireless device. The base station and wireless device may communicate according to the uplink bandwidth allocation and the downlink bandwidth allocation.

    Control Channel for UE Power Saving
    66.
    发明申请

    公开(公告)号:US20180368112A1

    公开(公告)日:2018-12-20

    申请号:US15923078

    申请日:2018-03-16

    Applicant: Apple Inc.

    Abstract: A downlink control information (DCI), such as a blanking DCI (bDCI) message may be transmitted by a base station (e.g., eNB) and received by a mobile device (e.g., UE). The bDCI may indicate that the eNB will not transmit a subsequent DCI to the UE for a duration of time. The UE may be in continuous reception mode or connected discontinuous reception (C-DRX) mode. The UE may therefore determine to enter a sleep state or take other action. The bDCI may specify an explicit blanking duration, or an index indicating a blanking duration from a lookup table, and/or the blanking duration (and/or a blanking duration offset value) may be determined in advance, e.g., semi-statically. When the UE is in C-DRX mode, the UE may be configured such that either the sleep/wake period of the C-DRX mode or the blanking period of the bDCI may take precedence over the other.

    Control Indicator for Power Saving in a Mobile Wireless Communication Device

    公开(公告)号:US20180279223A1

    公开(公告)日:2018-09-27

    申请号:US15892859

    申请日:2018-02-09

    Applicant: Apple Inc.

    Abstract: A wireless communication device (UE) may receive control indicator information (CII) indicating whether one or more candidate physical control channels (PCCs) are available to the UE for decoding. The UE may perform respective blind decoding if the CII indicates that the one or more candidate PCCs are available, to decode a respective PCC intended for the UE. The UE may receive the CII in the same slot in which PCCs are transmitted, or it may receive the CII in another slot, which may be a narrowband slot. The UE may receive the PCCs in the same slot in which corresponding physical data channels (PDCs) are transmitted, or it may receive the PCCs in another slot, e.g. a slot immediately preceding the slot in which the corresponding PDCs are transmitted. By eliminating unnecessary blind decoding and receiving the CII over narrowband, power consumption of the UE may be greatly reduced.

    Uplink OFDMA Processing in WLANs
    69.
    发明申请
    Uplink OFDMA Processing in WLANs 有权
    WLAN中的上行OFDMA处理

    公开(公告)号:US20160205672A1

    公开(公告)日:2016-07-14

    申请号:US14989945

    申请日:2016-01-07

    Applicant: Apple Inc.

    Abstract: This disclosure relates to orthogonal frequency division multiple access (OFDMA) communication in wireless local area networks (WLANs). According to some embodiments, a downlink OFDMA frame may be transmitted. An uplink OFDMA frame including acknowledgements associated with the downlink OFDMA frame may be received. The uplink OFDMA frame may be processed, in some instances including determining which devices receiving the downlink OFDMA frame transmitted an acknowledgement associated with the downlink OFDMA frame in the uplink OFDMA frame.

    Abstract translation: 本公开涉及无线局域网(WLAN)中的正交频分多址(OFDMA)通信。 根据一些实施例,可以发送下行链路OFDMA帧。 可以接收包括与下行链路OFDMA帧相关联的确认的上行链路OFDMA帧。 可以处理上行链路OFDMA帧,在某些情况下,包括确定在上行链路OFDMA帧中接收下行链路OFDMA帧发送的与下行链路OFDMA帧相关联的确认的设备。

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