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公开(公告)号：US10375677B2
公开(公告)日：2019-08-06
申请号：US14494659
申请日：2014-09-24
Applicant: Apple Inc.
Inventor： Hang Zhang , Jianglei Ma , Ming Jia , Mo-Han Fong , Peiying Zhu , Wen Tong
IPC: H04W72/04 , H04W72/00 , H04L12/18 , H04W4/08 , H04W48/10 , H04B7/0413 , H04L1/18 , H04L27/26 , H04L29/12 , H04W74/00 , H04L5/02
Abstract: A method and system for allocating shareable wireless transmission resources. A resource pool is established. The resource pool is divided into a plurality of physical layer allocation units usable for wirelessly transmitting control information and traffic data. The allocation units are assigned at the media access control layer for the wireless transmission of the control information and traffic data. The system and method of the present invention also allows mobile stations to be dynamically grouped into multicast groupings to reduce system overhead resource requirements.
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公开(公告)号：US20190229827A1
公开(公告)日：2019-07-25
申请号：US16374147
申请日：2019-04-03
Applicant: Apple Inc.
Inventor： Jianglei Ma , Ming Jia , Wen Tong , Peiying Zhu , Hua Xu , Hang Zhang , Mo-Han Fong
CPC classification number: H04J13/0003 , H04B1/707 , H04B7/0404 , H04B7/0678 , H04J13/00 , H04J13/16 , H04L5/0016 , H04L5/0026 , H04L5/0048 , H04L5/005 , H04L25/0204 , H04L25/0226 , H04L25/0232 , H04L25/03866 , H04L27/2613 , H04L27/2627 , H04W72/044
Abstract: In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol durations in time. Each cluster includes data as well as pilot information as a reference signal for channel estimation. In some embodiments, a plurality of clusters collectively occupy the available sub-carrier set in the frequency domain that is used for transmission. In some embodiments of the invention data and/or pilots are spread within each cluster using code division multiplexing (CDM). In some embodiments pilots and data are separated by distributing data on a particular number of the plurality of OFDM symbol durations and pilots on a remainder of the OFDM symbol durations. CDM spreading can be performed in time and/or frequency directions.
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公开(公告)号：US10263677B2
公开(公告)日：2019-04-16
申请号：US14685252
申请日：2015-04-13
Applicant: APPLE INC.
Inventor： Hang Zhang , Mo-Han Fong , Peiying Zhu , Jianglei Ma , Wen Tong
IPC: H04B7/0456 , H04B7/06 , H04L5/00 , H04W48/08 , H04B7/0413 , H04W72/04 , H04W72/08 , H04W74/06 , H04L5/02 , H04L27/26
Abstract: Aspects of the present invention provide additional MAC functionality to support the PHY features of a wireless communication system framework. The additional MAC functionality aids in enabling feedback from wireless terminals to base stations. In some aspects of the invention the feedback is provided on an allocated feedback channel. In other aspects of the invention the feedback is provided by MAC protocol data units (PDU) in a header, mini-header, or subheader. The feedback may be transmitted from the wireless terminal to the base station autonomously by the wireless terminal or in response to an indication from the base station that feedback is requested. Aspects of the invention also provide for allocating feedback resources to form a dedicated feedback channel. One or more of these enhancements is included in a given implementation. Base stations and wireless terminals are also described upon which methods described herein can be implemented.
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公开(公告)号：US20180152331A1
公开(公告)日：2018-05-31
申请号：US15823072
申请日：2017-11-27
Applicant: APPLE INC.
Inventor： Jianglei Ma , Hang Zhang , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong
CPC classification number: H04L27/2692 , H04B7/02 , H04B7/0452 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L7/043 , H04L27/2613 , H04L27/265 , H04L27/2655 , H04L27/2686 , H04W24/02
Abstract: The present invention provides a preamble that is inserted into an OFDMA frame and has a common sequence for all the base stations participating in a transmission. The subscriber station performs fine synchronization using the common sequence on the common preamble, and the resulting peaks will provide the locations of candidate base stations. The base station specific search is then performed in the vicinities of those peaks by using base station specific pseudo-noise sequences. With this two stage cell search, the searching window is drastically reduced. The preamble is matched to known values by a respective receiver to decode the signals and permit multiple signals to be transferred from the transmitter to the receiver. The preamble may comprise two parts, Preamble-I and Preamble-2, which may be used in different systems, including multioutput, multi-input (MIMO) systems.
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公开(公告)号：US09794938B2
公开(公告)日：2017-10-17
申请号：US15055793
申请日：2016-02-29
Applicant: Apple Inc.
Inventor： Sophie Vrzic , Jun Yuan , Mo-Han Fong , Robert Novak , Dong-Sheng Yu , Jianglei Ma
IPC: H04W72/04 , H04W74/00 , H04W74/08 , H04L5/00 , H04L27/26 , H04J11/00 , H04W84/12 , H04W88/08 , H04W88/12
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.
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Patent Agency Ranking
公开(公告)号：US09742527B2
公开(公告)日：2017-08-22
申请号：US15452100
申请日：2017-03-07
Applicant: Apple Inc.
Inventor： Robert Novak , Hosein Nikopourdeilami , Mo-Han Fong , Sophie Vrzic
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 to Alamouti based code pattern applied at the segment level to define a segment-level Alamouti based code.
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公开(公告)号：US20170230163A1
公开(公告)日：2017-08-10
申请号：US15494804
申请日：2017-04-24
Applicant: APPLE INC.
Inventor： HANG ZHANG , Mo-Han Fong , PEIYING ZHU , Wen TONG
CPC classification number: H04L5/0055 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0067 , H04L1/0071 , H04L1/0643 , H04L1/1671 , H04L1/1812 , H04L1/1819 , H04L1/1822 , H04L1/1861 , H04L1/1887 , H04L1/189 , H04L1/1896 , H04L9/0891 , H04L9/30 , H04L27/2601 , H04L27/2602 , H04L2209/80 , H04W12/0017 , H04W12/02 , H04W12/04
Abstract: Systems and methods are provided for enabling H-ARQ communication between a base station and one or more wireless terminals. Methods for enabling incremental redundancy (IR) based H-ARQ, Chase based H-ARQ and Space-Time Code combining (STC) based H-ARQ between devices for down-link and up-link direction transmissions are provided in the form of an information element (IE) for use with a Normal MAP convention as currently accepted in the draft version standard of IEEE 802.16. In addition, embodiments of the invention provide a resource management scheme to protect a network from abuse of resources from a wireless terminal not registered with the network. Components of the down-link and up-link mapping components of a data frame transmitted from the base station to one or more wireless terminals included messages that are readable by all wireless terminals as well as some messages that are encrypted and only readable by wireless terminals that are authenticated as being registered with the network.
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公开(公告)号：US20170207888A1
公开(公告)日：2017-07-20
申请号：US15473768
申请日：2017-03-30
Applicant: Apple Inc.
Inventor： Robert Novak , Mo-Han Fong , Hang Zhang , Sophie Vrzic
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.
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19.发明申请公开(公告)号：US20170195097A1
公开(公告)日：2017-07-06
申请号：US15463202
申请日：2017-03-20
Applicant: Apple Inc.
Inventor： Jianglei Ma , Ming Jia , Wen Tong , Peiying Zhu , Hang Zhang , Mo-Han Fong
CPC classification number: H04L5/0051 , H04L1/0003 , H04L1/0009 , H04L1/0618 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L5/005 , H04L25/02 , H04L27/2602 , H04L27/2613 , H04L27/2647 , H04W52/325
Abstract: Aspects of the invention include methods and devices for inserting data and pilot symbols into Orthogonal Frequency Division Multiplexing (OFDM) frames having a time domain and a frequency domain. A method involves inserting in at least one zone of a first type a two dimensional array of data and pilot symbols in time and frequency and inserting in at least one zone of a second type a two dimensional array of data and pilot symbols in time and frequency. In some implementations the zone of the first type comprises common pilot symbols that can be detected by all receivers receiving the OFDM frame. In some implementations the zone of the second type comprises dedicated pilot symbols that are only detectable by a receiver that is aware of pre-processing used to encode the dedicated pilot symbols.
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公开(公告)号：US09634817B2
公开(公告)日：2017-04-25
申请号：US14456993
申请日：2014-08-11
Applicant: APPLE INC.
Inventor： Hang Zhang , Mo-Han Fong , Peiying Zhu , Wen Tong
IPC: H04W4/00 , H04L5/00 , H04L1/16 , H04L1/18 , H04L9/08 , H04L9/30 , H04W12/02 , H04L27/26 , H04L1/00 , H04L1/06 , H04W12/04
CPC classification number: H04L5/0055 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0067 , H04L1/0071 , H04L1/0643 , H04L1/1671 , H04L1/1812 , H04L1/1819 , H04L1/1822 , H04L1/1861 , H04L1/1887 , H04L1/189 , H04L1/1896 , H04L9/0891 , H04L9/30 , H04L27/2601 , H04L27/2602 , H04L2209/80 , H04W12/02 , H04W12/04
Abstract: Systems and methods are provided for enabling H-ARQ communication between a base station and one or more wireless terminals. Methods for enabling incremental redundancy (IR) based H-ARQ, Chase based H-ARQ and Space-Time Code combining (STC) based H-ARQ between devices for down-link and up-link direction transmissions are provided in the form of an information element (IE) for use with a Normal MAP convention as currently accepted in the draft version standard of IEEE 802.16. In addition, embodiments of the invention provide a resource management scheme to protect a network from abuse of resources from a wireless terminal not registered with the network. Components of the down-link and up-link mapping components of a data frame transmitted from the base station to one or more wireless terminals included messages that are readable by all wireless terminals as well as some messages that are encrypted and only readable by wireless terminals that are authenticated as being registered with the network.
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