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

IPC: H04L5/00 ,  H04L27/26

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.

公开(公告)号：US09686681B2

公开(公告)日：2017-06-20

申请号：US15291586

申请日：2016-10-12

Applicant: Apple Inc.

Inventor： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Nimal Gamini Senarath ,  Derek Yu

IPC: H04W12/04 ,  H04W76/04 ,  H04W76/02 ,  H04L29/06 ,  H04W12/06 ,  H04W84/04 ,  H04W88/04 ,  H04W16/26 ,  H04B7/155 ,  H04W12/02 ,  H04W72/00

CPC classification number: H04W12/04 ,  H04B7/155 ,  H04L63/06 ,  H04L63/083 ,  H04W12/02 ,  H04W12/06 ,  H04W16/26 ,  H04W72/00 ,  H04W76/10 ,  H04W76/11 ,  H04W76/20 ,  H04W84/047 ,  H04W88/04

Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.

公开(公告)号：US09686061B2

公开(公告)日：2017-06-20

申请号：US13944365

申请日：2013-07-17

Applicant: Apple Inc.

Inventor： Jianglei Ma ,  Hang Zhang ,  Ming Jia ,  Wen Tong ,  Hua Xu ,  Peiying Zhu

IPC: H04W52/14 ,  H04L5/00 ,  H04B7/155 ,  H04L5/14 ,  H04L25/20 ,  H04W72/04 ,  A61K45/06 ,  A61K9/20 ,  A61K9/24 ,  A61K31/455 ,  A61K31/54 ,  H04W84/04 ,  A61K9/28 ,  A61K9/50

CPC classification number: H04L5/0039 ,  A61K9/2081 ,  A61K9/209 ,  A61K9/2886 ,  A61K9/5026 ,  A61K9/5073 ,  A61K9/5084 ,  A61K31/455 ,  A61K31/54 ,  A61K45/06 ,  H04B7/15542 ,  H04L5/0007 ,  H04L5/003 ,  H04L5/14 ,  H04L25/20 ,  H04W52/143 ,  H04W72/0453 ,  H04W84/047 ,  A61K2300/00

Abstract: International Mobile Telecommunications (IMT) Advanced technology, also known as 4th Generation (4G) targets to support up to 100 MHz BW. LTE currently supports single carrier bandwidths of up to 20 MHz. The present application describes a multi-carrier approach in which some embodiments of the invention provide a simple solution of aggregating multiple single carrier bandwidths to obtain a wider bandwidth (>20 MHz). Such an approach may extend Long Term Evolution (LTE) bandwidth to greater than that provided by a single carrier, yet maintain full backward compatibility with technologies that predate 4G technology and utilize smaller, single carrier bandwidths. More generally, embodiments of the invention can apply to other communication standards than only LTE.

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.

公开(公告)号：US09485792B2

公开(公告)日：2016-11-01

申请号：US14918690

申请日：2015-10-21

Applicant: Apple Inc.

Inventor： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Nimal Gamini Senarath ,  Derek Yu

IPC: H04W76/02 ,  H04W76/04 ,  H04W84/04 ,  H04W88/04 ,  H04W16/26 ,  H04B7/155 ,  H04W12/02 ,  H04W72/00

CPC classification number: H04W12/04 ,  H04B7/155 ,  H04L63/06 ,  H04L63/083 ,  H04W12/02 ,  H04W12/06 ,  H04W16/26 ,  H04W72/00 ,  H04W76/10 ,  H04W76/11 ,  H04W76/20 ,  H04W84/047 ,  H04W88/04

Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.

公开(公告)号：US09462425B2

公开(公告)日：2016-10-04

申请号：US14589994

申请日：2015-01-05

Applicant: APPLE INC.

Inventor： Wen Tong ,  Jianglei Ma ,  Mo-Han Fong ,  Peiying Zhu ,  Aaron Callard

IPC: H04W4/00 ,  H04W4/06 ,  H04W72/12 ,  H04W72/00 ,  H04W72/04 ,  H04B7/08 ,  H04H20/42 ,  H04H20/67 ,  H04H20/72 ,  H04W52/32 ,  H04L12/18

CPC classification number: H04W4/06 ,  H04B7/0874 ,  H04H20/42 ,  H04H20/67 ,  H04H20/72 ,  H04L12/189 ,  H04W52/327 ,  H04W72/005 ,  H04W72/04 ,  H04W72/0453 ,  H04W72/121

Abstract: Methods and devices are provided for implementing two types of sub-channel arrangements. A first type of sub-channel arrangement involves defining a first traffic portion and a second traffic portion of a transmission resource, transmitting broadcast traffic on at least one first antenna of a plurality of antennas in the first traffic portion using a first sub-channelization, transmitting multicast traffic on at least one second antenna of the plurality of antennas, the at least one second antenna being distinct from the at least one first antenna, in the first traffic portion using a second sub-channelization, and transmitting unicast traffic on at least one antenna of the plurality of antennas in the second traffic portion using a third sub-channelization. A second type of sub-channel arrangement involves defining a first traffic portion and a second traffic portion, wherein for a portion of the transmission resource, a portion of the first traffic portion overlaps with a portion of the second traffic portion. In the portion of the transmission resource in which a portion of the first traffic portion overlaps with a portion of the second traffic portion, the channel arrangement involves transmitting broadcast/multicast traffic on at least one first antenna of a plurality of antennas using a first sub-channelization and b) transmitting unicast traffic on at least one second antenna of the plurality of antennas, the at least one second antenna being distinct from the at least one first antenna, using a second sub-channelization. The first, second and third sub-channelizations may be based on either one of or a combination of FDM sub-channelization and TDM sub-channelization.

公开(公告)号：US20160285597A1

公开(公告)日：2016-09-29

申请号：US15143712

申请日：2016-05-02

Applicant: Apple Inc.

Inventor： Jianglei Ma ,  Ming Jia ,  Wen Tong ,  Peiying Zhu ,  Hang Zhang ,  Mo-Han Fong

IPC: H04L5/00 ,  H04L27/26

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.

公开(公告)号：US20160164706A1

公开(公告)日：2016-06-09

申请号：US15046934

申请日：2016-02-18

Applicant: Apple Inc.

Inventor： Jianglei Ma ,  Ming Jia ,  Wen Tong ,  Peiying Zhu ,  Hang Zhang ,  Hua Xu ,  Dong-Sheng Yu

IPC: H04L27/26 ,  H04B7/08 ,  H04L5/00 ,  H04B7/06

CPC classification number: H04L27/2611 ,  H04B7/06 ,  H04B7/08 ,  H04L5/0007 ,  H04L5/0023 ,  H04L25/0226 ,  H04L25/0232 ,  H04L27/2626 ,  H04L27/2647

Abstract: A method and apparatus for improving channel estimation within an OFDM communication system. Channel estimation in OFDM is usually performed with the aid of pilot symbols. The pilot symbols are typically spaced in time and frequency. The set of frequencies and times at which pilot symbols are inserted is referred to as a pilot pattern. In some cases, the pilot pattern is a diagonal-shaped lattice, either regular or irregular. The method first interpolates in the direction of larger coherence (time or frequency). Using these measurements, the density of pilot symbols in the direction of faster change will be increased thereby improving channel estimation without increasing overhead. As such, the results of the first interpolating step can then be used to assist the interpolation in the dimension of smaller coherence (time or frequency).

Abstract translation: 一种用于改善OFDM通信系统内的信道估计的方法和装置。 OFDM中的信道估计通常借助于导频符号来执行。 导频符号通常在时间和频率上间隔开。 将导频符号插入的频率和时间的集合称为导频模式。 在一些情况下，导频图案是对角线形格子，规则的或不规则的。 该方法首先在较大相干性（时间或频率）的方向内插。 使用这些测量，导频符号在更快变化方向上的密度将增加，从而改善信道估计而不增加开销。 因此，第一内插步骤的结果然后可以用于辅助尺寸较小的相干性（时间或频率）的内插。

公开(公告)号：US20160073436A1

公开(公告)日：2016-03-10

申请号：US14918690

申请日：2015-10-21

Applicant: Apple Inc.

Inventor： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Nimal Gamini Senarath ,  Derek Yu

IPC: H04W76/02

CPC classification number: H04W12/04 ,  H04B7/155 ,  H04L63/06 ,  H04L63/083 ,  H04W12/02 ,  H04W12/06 ,  H04W16/26 ,  H04W72/00 ,  H04W76/10 ,  H04W76/11 ,  H04W76/20 ,  H04W84/047 ,  H04W88/04

Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.

Abstract translation: 提供了用于在由相同基站或中继站服务的两个移动台之间提供有效通信的方法和系统。 基站维护识别其正在服务的移动台的信息。 当在两个移动站之间建立连接时，如果它们都由相同的基站服务，则基站直接在两个移动站之间转发流量，而不将其转发到较高级别的网络实体。

公开(公告)号：US09191978B2

公开(公告)日：2015-11-17

申请号：US13944264

申请日：2013-07-17

Applicant: Apple Inc.

Inventor： Hang Zhang ,  Peiying Zhu ,  Wen Tong ,  Nimal Gamini Senarath ,  Derek Yu

IPC: H04B7/04 ,  H04W76/02 ,  H04W76/04 ,  H04W84/04 ,  H04W88/04 ,  H04W16/26 ,  H04B7/155 ,  H04W12/02 ,  H04W72/00

CPC classification number: H04W12/04 ,  H04B7/155 ,  H04L63/06 ,  H04L63/083 ,  H04W12/02 ,  H04W12/06 ,  H04W16/26 ,  H04W72/00 ,  H04W76/10 ,  H04W76/11 ,  H04W76/20 ,  H04W84/047 ,  H04W88/04

Abstract: Methods and systems for providing efficient communications between two mobile stations served by the same base station or relay station are provided. A base station maintains information identifying which mobile stations it is serving. When a connection is set up between two mobile stations, if they are both being served by the same base station, the base station forwards traffic directly between the two mobile stations without forwarding it on to higher level network entities.

Abstract translation: 提供了用于在由相同基站或中继站服务的两个移动台之间提供有效通信的方法和系统。 基站维护识别其正在服务的移动台的信息。 当在两个移动站之间建立连接时，如果它们都由相同的基站服务，则基站直接在两个移动站之间转发流量，而不将其转发到较高级别的网络实体。