-
公开(公告)号:US11201648B2
公开(公告)日:2021-12-14
申请号:US16745516
申请日:2020-01-17
Applicant: Apple Inc.
Inventor: Wen Tong , Ming Jia , Jianglei Ma , Peiying Zhu , Hua Xu , Dong-Sheng Yu , Hang Zhang , Mo-Han Fong
IPC: H04B7/0456 , H04B7/06 , H04L5/00 , H04W48/08 , H04B7/0413 , H04W72/04 , H04W72/08 , H04W74/06 , H04L5/02 , H04L27/26
Abstract: Systems and methods for closed loop MIMO (multiple input and multiple output) wireless communication are provided. Various transmit formats including spatial multiplexing and STTD are defined in which vector or matrix weighting is employed using information fed back from receivers. The feedback information may include channel matrix or SVD-based feedback.
-
公开(公告)号:US11025376B2
公开(公告)日:2021-06-01
申请号:US15574765
申请日:2015-12-15
Applicant: Apple Inc.
Inventor: Gang Xiong , Pingping Zong , Yujian Zhang , Mo-Han Fong , Jong-Kae Fwu
Abstract: Disclosed herein are apparatuses, systems, and methods using or implementing dynamic resource allocation (DRA) of resources for machine-type communication (MTC), as a secondary partition within a system bandwidth. Allocations outside the secondary partition are configured as a primary partition for other than MTC. Apparatuses may perform MTC communications within the secondary partition when DRA configuration information includes allocation information for the secondary partition and the apparatus is configured for MTC. Otherwise, if the apparatus is other than MTC, the apparatus may refrain from performing communications in the secondary partition. Other embodiments are described.
-
公开(公告)号:US10985892B2
公开(公告)日:2021-04-20
申请号:US16591711
申请日:2019-10-03
Applicant: Apple Inc.
Inventor: Hang Zhang , Mo-Han Fong , Peiying Zhu , Wen Tong
IPC: H04L5/00 , H04L1/18 , H04L9/08 , H04L9/30 , H04L1/16 , H04L27/26 , H04W12/00 , H04W12/02 , H04L1/00 , H04L1/06 , 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.
-
公开(公告)号:US20200162138A1
公开(公告)日:2020-05-21
申请号:US16749687
申请日:2020-01-22
Applicant: APPLE INC.
Inventor: Hang ZHANG , Mo-Han Fong , Peiying Zhu , Jianglei Ma , Wen Tong
IPC: H04B7/0456 , H04B7/0413 , H04W74/06 , H04W72/08 , H04W72/04 , H04W48/08 , H04L5/02 , H04L5/00 , H04B7/06
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.
-
公开(公告)号:US10554272B2
公开(公告)日:2020-02-04
申请号:US15486060
申请日:2017-04-12
Applicant: APPLE INC.
Inventor: Wen Tong , Ming Jia , Jianglei Ma , Peiying Zhu , Hua Xu , Dong-Sheng Yu , Hang Zhang , Mo-Han Fong
IPC: H04B7/0456 , H04B7/06 , H04L5/00 , H04W48/08 , H04B7/0413 , H04W72/04 , H04L5/02 , H04W72/08 , H04W74/06 , H04L27/26
Abstract: Systems and methods for closed loop MIMO (multiple input and multiple output) wireless communication are provided. Various transmit formats including spatial multiplexing and STTD are defined in which vector or matrix weighting is employed using information fed back from receivers. The feedback information may include channel matrix or SVD-based feedback.
-
106.
公开(公告)号:US20200037300A1
公开(公告)日:2020-01-30
申请号:US16593326
申请日:2019-10-04
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
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.
-
107.
公开(公告)号:US10277374B2
公开(公告)日:2019-04-30
申请号:US15806923
申请日:2017-11-08
Applicant: Apple Inc.
Inventor: Jianglei Ma , Ming Jia , Wen Tong , Peiying Zhu , Hang Zhang , Mo-Han Fong
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.
-
公开(公告)号:US10244529B2
公开(公告)日:2019-03-26
申请号:US15681557
申请日:2017-08-21
Applicant: Apple Inc.
Inventor: Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
IPC: H04W72/04 , H04B7/12 , H04L1/00 , H04L5/00 , H04L25/02 , H04L27/26 , H04L29/06 , H04B7/06 , H04L1/06 , H04L1/18 , H04L25/03 , H04B7/02
Abstract: Systems and methods for OFDM channelization are provided that allow for the coexistence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided and systematic channel definition and labeling schemes are provided.
-
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
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:US20180310304A1
公开(公告)日:2018-10-25
申请号:US16021546
申请日:2018-06-28
Applicant: Apple Inc.
Inventor: Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
IPC: H04W72/04 , H04L5/00 , H04L27/26 , H04L1/00 , H04L25/02 , H04L29/06 , H04B7/12 , H04B7/06 , H04L1/06 , H04L1/18 , H04B7/02 , H04L25/03
CPC classification number: H04W72/0446 , H04B7/02 , H04B7/0669 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0656 , H04L1/1812 , H04L1/1887 , H04L5/0007 , H04L5/0023 , H04L5/0039 , H04L5/0041 , H04L5/0042 , H04L5/0046 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/006 , H04L5/0085 , H04L5/0096 , H04L25/0226 , H04L25/0228 , H04L25/03057 , H04L27/2627 , H04L27/2655 , H04L65/1066 , H04W72/0453
Abstract: Systems and methods for OFDM channelization are provided that allow for the coexistence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided and systematic channel definition and labeling schemes are provided.
-
-
-
-
-
-
-
-
-