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    Uplink control in a wireless communication network
    2.
    发明授权
    Uplink control in a wireless communication network 有权

    公开(公告)号：US11425713B2

    公开(公告)日：2022-08-23

    申请号：US16900954

    申请日：2020-06-14

    申请人： Apple Inc.

    发明人： Sophie Vrzic ,  Jun Yuan ,  Mo-Han Fong ,  Robert Novak ,  Dong-Sheng Yu ,  Jianglei Ma

    IPC分类号： H04W4/00 ,  H04W72/04 ,  H04W74/00 ,  H04W74/08 ,  H04L5/00 ,  H04L27/26 ,  H04J11/00 ,  H04W84/12 ,  H04W88/08 ,  H04W88/12

    摘要： A method and system are provided having an uplink control structure and a pilot signal having minimal signal overhead for providing channel estimation and data demodulation in a wireless communication network. The uplink control structures enable mobile terminals to communicate with corresponding base stations to perform various functions including obtaining initial system access, submitting a bandwidth request, triggering a continuation of negotiated service, or providing a proposed allocation re-configuration header. A dedicated random access channel is provided to communicatively couple the base station and the mobile terminal so that the mobile terminal can select a random access signaling identification. A resource request is received at the base station to uplink resource information from the mobile terminal and an initial access information request is received from the mobile terminal to configure the base station connection. Pilot signals with varying density configurations are provided to include low density symbol patterns for multiple contiguous resource blocks and high density symbol patterns for single resource blocks.

    Communication of Control Information Using Alert Flag and Version Number
    3.
    发明申请
    Communication of Control Information Using Alert Flag and Version Number 有权

    公开(公告)号：US20220248389A1

    公开(公告)日：2022-08-04

    申请号：US17725795

    申请日：2022-04-21

    申请人： Apple Inc.

    发明人： Mo-Han Fong ,  Hang Zhang ,  Sophie Vrzic ,  Robert Novak ,  Jun Yuan ,  Dong-Sheng Yu

    IPC分类号： H04W72/04 ,  H04W48/12 ,  H04L1/18 ,  H04W24/10 ,  H04W72/08 ,  H04L5/00

    摘要： To effectively and efficiently provide control information, a broadcast pointer channel (BPCH) may be used to identify the type and perhaps relative location of control information that is being provided in a given frame structure, such as a sub-frame, frame, or superframe. A sub-frame (or like framing entity, such a frame or superframe) may have a BPCH and a corresponding system control information segment in which control information may reside. The system control information segment may have any number of control information blocks, wherein each control information block that is present may correspond to a particular type of control information. The BPCH is used to identify the type of control information that is present in a corresponding system control information segment, and if needed or desired, the relative locations of the various control information.

    Methods and systems for HARQ protocols
    4.
    发明授权
    Methods and systems for HARQ protocols 有权

    公开(公告)号：US10686561B2

    公开(公告)日：2020-06-16

    申请号：US16004740

    申请日：2018-06-11

    申请人： Apple Inc.

    发明人： Mo-han Fong ,  Sophie Vrzic ,  Robert Novak ,  Jun Yuan ,  Dong-Sheng Yu

    IPC分类号： H04W72/04 ,  H04L1/18 ,  H04W72/12 ,  H04W72/00 ,  H04L5/14 ,  H04L5/00 ,  H04L1/00 ,  H04L27/26 ,  H04W88/04 ,  H04W88/06 ,  H04W28/04

    摘要： Methods described herein are for wireless communication systems. One aspect of the invention is directed to a method for a HARQ process, in which the HARQ process includes a first transmission of an encoder packet and at least one retransmission. The method involves allocating a transmission resource for each respective transmission. The method involves transmitting control information from a base station to a mobile station for each respective transmission. The control information includes information to uniquely identify the HARQ process and an identification of one of a time resource, a frequency resource and a time and frequency resource that is allocated for the transmission. In some embodiments of the invention, specific control information is signalled from a base station to a mobile station to enable RAS-HARQ operation. In some embodiments of the invention, retransmission signaling in included as part of regular unicast signaling used for both first transmission and retransmissions. In some embodiments of the invention, a 3-state acknowledgement channel and associated error recovery operation enables the base station and mobile station to recover from control signaling error and reduce packet loss.

    Methods and systems for resource allocation
    10.
    发明授权
    Methods and systems for resource allocation 有权

    公开(公告)号：US11509431B2

    公开(公告)日：2022-11-22

    申请号：US16940286

    申请日：2020-07-27

    申请人： Apple Inc.

    发明人： Robert Novak ,  Mo-Han Fong ,  Hang Zhang ,  Sophie Vrzic

    IPC分类号： H04L5/00 ,  H04L1/18 ,  H04W52/48 ,  H04W72/12 ,  H04W52/34 ,  H04W72/04

    摘要： Various methods and systems are provided for allocating time-frequency resources for downlink (DL) and uplink (UL) communications between base stations and mobile stations. Different forms of resource allocation messages including combinations of bitmaps and bitfields provide additional information about the resources and/or how they are assigned. In some implementations the resource allocation messages enable reduced overhead, which may ultimately improve transmission rates and/or the quality of transmissions.