公开(公告)号：US11888615B2

公开(公告)日：2024-01-30

申请号：US16397152

申请日：2019-04-29

Applicant: APPLE INC.

Inventor： Robert Novak ,  Hang Zhang ,  Sophie Vrzic ,  Mo-Han Fong ,  Kelvin Kar-Kin Au ,  Jianglei Ma ,  Peiying Zhu ,  Wen Tong

IPC: H04L1/00 ,  H04L5/00 ,  H04L1/14 ,  H04L1/1607 ,  H04L1/1867 ,  H04L65/80 ,  H04L65/70 ,  H04L65/1101

CPC classification number: H04L1/0067 ,  H04L1/0013 ,  H04L1/0025 ,  H04L1/14 ,  H04L1/1614 ,  H04L1/1867 ,  H04L5/0037 ,  H04L5/0042 ,  H04L5/0046 ,  H04L5/0064 ,  H04L65/1101 ,  H04L65/70 ,  H04L65/80 ,  H04L5/0007 ,  H04L2001/0093

Abstract: Methods and systems are provided for allocating resources including VoIP (voice over Internet Protocol) and Non-VoIP resources. In some embodiments, multiplexing schemes are provided for use with OFDMA (orthogonal frequency division multiplexing access) systems, for example for use in transmitting VoIP traffic. In some embodiments, various HARQ (Hybrid Automatic request) techniques are provided for use with OFDMA systems. In various embodiments, there are provided methods and systems for dealing with issues such as Handling non-full rate vocoder frames, VoIP packet jitter handling, VoIP capacity increasing schemes, persistent and non-persistent assignment of resources in OFDMA systems.

公开(公告)号：US11515969B2

公开(公告)日：2022-11-29

申请号：US17215623

申请日：2021-03-29

Applicant: Apple Inc.

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

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

Abstract: 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.

公开(公告)号：US10554465B2

公开(公告)日：2020-02-04

申请号：US16415111

申请日：2019-05-17

Applicant: Apple Inc.

Inventor： Adrian Smith ,  Xiao-Dong Li ,  David Steer ,  Kelvin Kar-Kin Au ,  Robert Novak ,  Mark Earnshaw

IPC: H04L27/26 ,  H04L5/02 ,  H04B7/185 ,  H04L5/00 ,  H04W56/00

Abstract: A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques.

公开(公告)号：US20190273645A1

公开(公告)日：2019-09-05

申请号：US16415111

申请日：2019-05-17

Applicant: Apple Inc.

Inventor： Adrian Smith ,  Xiao-Dong Li ,  David Steer ,  Kelvin Kar-Kin Au ,  Robert Novak ,  Mark Earnshaw

IPC: H04L27/26 ,  H04W56/00 ,  H04B7/185 ,  H04L5/02 ,  H04L5/00

Abstract: A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques.

公开(公告)号：US20190044671A1

公开(公告)日：2019-02-07

申请号：US16157413

申请日：2018-10-11

Applicant: Apple Inc.

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

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

Abstract: 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.

公开(公告)号：US20180294925A1

公开(公告)日：2018-10-11

申请号：US16004740

申请日：2018-06-11

Applicant: Apple Inc.

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

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

Abstract: 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.

公开(公告)号：US10044472B2

公开(公告)日：2018-08-07

申请号：US15893969

申请日：2018-02-12

Applicant: Apple Inc.

Inventor： Robert Novak ,  Hosein Nikopourdeilami ,  Mo-Han Fong ,  Sophie Vrzic

IPC: H04L1/02 ,  H04L1/06 ,  H04L1/18 ,  H04B7/06 ,  H04B7/0456 ,  H04L5/00 ,  H04L27/26 ,  H04L1/00

CPC classification number: H04L1/0668 ,  H04B7/0473 ,  H04B7/0667 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0026 ,  H04L1/0067 ,  H04L1/0071 ,  H04L1/0643 ,  H04L1/1812 ,  H04L1/1816 ,  H04L1/1893 ,  H04L5/0026 ,  H04L27/2628

Abstract: A method for transmitting data in a multiple-input-multiple-output space-time coded communication using a mapping table mapping a plurality of symbols defining the communication to respective antennae from amongst a plurality of transmission antennae and to at least one other transmission resource. The mapping table may comprise Alamouti-coded primary segments and may also comprise secondary segments, comprising primary segments. The primary segments in the secondary segments may be defined in accordance to an Alamouti based code pattern applied at the segment level to define a segment-level Alamouti based code.

公开(公告)号：US10009149B2

公开(公告)日：2018-06-26

申请号：US15491575

申请日：2017-04-19

Applicant: Apple Inc.

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

IPC: H04L1/18 ,  H04L27/26 ,  H04W72/04

CPC classification number: H04L1/1812 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1816 ,  H04L1/1861 ,  H04L1/1887 ,  H04L1/1896 ,  H04L5/0055 ,  H04L5/14 ,  H04L27/2659 ,  H04L27/2666 ,  H04W28/04 ,  H04W72/005 ,  H04W72/042 ,  H04W72/044 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/1257 ,  H04W72/1268 ,  H04W88/04 ,  H04W88/06

Abstract: 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.

公开(公告)号：US20180027558A1

公开(公告)日：2018-01-25

申请号：US15723310

申请日：2017-10-03

Applicant: Apple Inc.

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

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

CPC classification number: H04W72/0446 ,  H04J11/00 ,  H04L5/005 ,  H04L5/0053 ,  H04L5/0055 ,  H04L27/2602 ,  H04W72/0413 ,  H04W72/042 ,  H04W74/004 ,  H04W74/0833 ,  H04W74/0866 ,  H04W84/12 ,  H04W88/085 ,  H04W88/12

Abstract: 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.

公开(公告)号：US09614650B2

公开(公告)日：2017-04-04

申请号：US14285908

申请日：2014-05-23

Applicant: Apple Inc.

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

IPC: H04W4/00 ,  H04J3/00 ,  H04L5/00 ,  H04W52/34 ,  H04W52/48 ,  H04W72/04 ,  H04L1/18 ,  H04W72/12

CPC classification number: H04L5/0005 ,  H04L1/1812 ,  H04L1/1893 ,  H04L5/0044 ,  H04W52/34 ,  H04W52/48 ,  H04W72/04 ,  H04W72/042 ,  H04W72/0446 ,  H04W72/0453 ,  H04W72/12

Abstract: 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.