公开(公告)号：US20180205395A1

公开(公告)日：2018-07-19

申请号：US15408202

申请日：2017-01-17

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： SaiRamesh Nammi

IPC: H03M13/29 ,  H04W72/04 ,  H04L1/00 ,  H03M13/23 ,  H03M13/11 ,  H03M13/13 ,  H04L1/18

CPC classification number: H04L1/1812 ,  H03M13/1102 ,  H03M13/13 ,  H03M13/2957 ,  H03M13/353 ,  H03M13/6306 ,  H04L1/001 ,  H04L1/0045 ,  H04L1/0046 ,  H04L1/0056 ,  H04L1/0058 ,  H04L1/007 ,  H04L1/0086 ,  H04L1/0088 ,  H04L1/0089 ,  H04L1/0091 ,  H04L1/1816 ,  H04L1/1819 ,  H04L1/1825 ,  H04W72/042

Abstract: An adaptive downlink control channel structure is provided to enable a transmitter to switch between forward error correction codes that use either Chase combining or incremental redundancy hybrid automatic repeat request (HARQ) techniques. Chase combining HARQ can be more efficient for forward error correction codes that use higher code rates, while incremental redundancy can be more effective for forward error correction codes that use lower code rates. The transmitter will also selectively comprise the redundancy version indicator bits depending on the HARQ method selected, which can reduce the sizes of the transport blocks when not using incremental redundancy. A receiver device can also decode transport blocks and determine whether a redundancy version indicator is present based on the forward error correction code selected.

公开(公告)号：US09929813B1

公开(公告)日：2018-03-27

申请号：US15450635

申请日：2017-03-06

Applicant: TYCO ELECTRONICS SUBSEA COMMUNICATIONS LLC

Inventor： Hussam G. Batshon ,  Maxim A. Bolshtyansky

IPC: H04B10/00 ,  H04B10/516

CPC classification number: H04B10/516 ,  H04L1/0042 ,  H04L1/0045 ,  H04L1/0058 ,  H04L1/0086 ,  H04L27/34

Abstract: A system and method involving using a nonlinear reversible code for probabilistic constellation shaping. A nonlinear reversible code encoder receives information bits and applies a nonlinear reversible code to the information bits to provide encoded bits. A mapper maps the encoded bits to successive amplitude and phase-shift keying (APSK) symbols. Each of the APSK symbols has an APSK modulation format with an associated constellation and the mapper maps each of the symbols to an associated constellation location of the constellation in response to one or more associated ones of the encoded bits.

公开(公告)号：US09918195B2

公开(公告)日：2018-03-13

申请号：US15346482

申请日：2016-11-08

Applicant: QUALCOMM Incorporated

Inventor： Rahul Malik ,  Carlos Horacio Aldana

IPC: H04W24/00 ,  H04W4/02 ,  H04B17/27 ,  G01S3/72 ,  G01S3/74 ,  H04B7/06 ,  H04L5/00 ,  H04L1/00

CPC classification number: H04W4/023 ,  G01S3/72 ,  G01S3/74 ,  H01Q3/2605 ,  H04B7/0682 ,  H04B17/27 ,  H04L1/0086 ,  H04L5/0044 ,  H04L5/0053

Abstract: Aspects of the present disclosure may compensate for cyclic shift delays (CSD) in transmitted signals when estimating angle of arrival information of a wireless signal transmitted by a transmitting device. In some aspects, a receiving device may determine a presence of CSD in the wireless signal, and estimate an angle of arrival of the wireless signal based at least in part on the presence of CSD. For example, the receiving device may determine a first tap of the wireless channel based at least in part on the CSD. The receiving device may then determine a phase difference of the wireless signal between a plurality of antennas of the receiving device based on the first tap of the wireless channel. The receiving device may estimate the angle of arrival of the wireless signal based on the phase difference.

公开(公告)号：US09900105B1

公开(公告)日：2018-02-20

申请号：US15289874

申请日：2016-10-10

Applicant: Tyco Electronics Subsea Communications LLC

Inventor： Hussam G. Batshon ,  Maxim A. Bolshtyansky

IPC: H04B10/50 ,  H04B10/516 ,  H04B10/54 ,  H04J14/02 ,  H04B10/548

CPC classification number: H04B10/5161 ,  H04B10/50 ,  H04B10/501 ,  H04B10/505 ,  H04B10/5055 ,  H04B10/516 ,  H04B10/54 ,  H04B10/541 ,  H04B10/548 ,  H04B10/556 ,  H04J14/02 ,  H04L1/0041 ,  H04L1/0058 ,  H04L1/0086 ,  H04L27/34

Abstract: A system and method involving a coded modulation scheme using an M-APSK format with a circular constellation. A maximum achievable spectral efficiency for the transmitters may be selected and a spectral efficiency step-size of the maximum achievable spectral efficiency may be specified. The spectral efficiency for any transmitter in the system may be individually selected by reducing its spectral efficiency from the maximum achievable spectral efficiencies by a selected number of steps corresponding to the step size.

公开(公告)号：US20170366320A1

公开(公告)日：2017-12-21

申请号：US15697068

申请日：2017-09-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ismael GUTIERREZ ,  Alain MOURAD

IPC: H04L5/00 ,  H04L27/26 ,  H04L29/06 ,  H04L1/00 ,  H04W72/04 ,  H04W72/00

CPC classification number: H04L5/0053 ,  H04L1/0057 ,  H04L1/008 ,  H04L1/0084 ,  H04L1/0086 ,  H04L27/2602 ,  H04L65/607 ,  H04W72/005 ,  H04W72/04 ,  H04W72/0446

Abstract: A method of transmitting data by a transmitter in a broadcast system, a transmission device for transmitting at least one data stream in a broadcast system, a method of receiving data by a receiver in a broadcast system, and a receiving device for receiving data in a broadcast system are provided. The method of transmitting data by a transmission device includes generating a first frame comprising a preamble and a payload, wherein the preamble comprises first information related to the payload of the first frame, and wherein the payload comprises the data; and transmitting the first frame, wherein the preamble includes at least one parity bit for third information related to a payload of a second frame, and wherein the second frame is a next frame of the first frame.

公开(公告)号：US09798603B2

公开(公告)日：2017-10-24

申请号：US14708403

申请日：2015-05-11

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takao Yamaguchi ,  Atsushi Yoshida ,  Tomoki Ishii ,  Satoru Tokutsu

IPC: G06F11/00 ,  G06F11/07 ,  H04L1/00

CPC classification number: G06F11/076 ,  G06F11/0745 ,  H04L1/0041 ,  H04L1/0086 ,  H04L2001/0094

Abstract: A communication device includes: a receiving terminal; a storage device which stores a rule in which a condition regarding a bus system operation environment and an error tolerance scheme are associated with each other, and information regarding a path length; an error processor which determines the error tolerance scheme by utilizing the condition regarding the bus system operation environment and the rule so as to generate error tolerance information corresponding to the received data according to the determined error tolerance scheme; and a sending terminal for sending at least one packet including the error tolerance information and the data to the bus. The operation environment-related condition is a condition for granting an error tolerance for a transmission path of which a bus path length to another communication device, which is a destination of the data, is greater than a predetermined value.

公开(公告)号：US09750030B2

公开(公告)日：2017-08-29

申请号：US13197412

申请日：2011-08-03

Applicant: Alan Barbieri ,  Vikas Jain ,  Muruganandam Jayabalan ,  Tao Luo ,  Saikiran Nudurupati ,  Fang Chen

Inventor： Alan Barbieri ,  Vikas Jain ,  Muruganandam Jayabalan ,  Tao Luo ,  Saikiran Nudurupati ,  Fang Chen

IPC: H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L1/18 ,  H04L1/20

CPC classification number: H04W72/048 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0026 ,  H04L1/0031 ,  H04L1/0086 ,  H04L1/1812 ,  H04L1/203 ,  H04L5/0053 ,  H04L2001/0092

Abstract: Downlink rate adaptation in wireless communication systems are disclosed in which a UE reports RIs for both interference-free and interference-limited subframes. In general, the RI for the interference-free subframes will be higher than the RI reported for the interference-limited subframes. However, an eNB selects an RI and a transmission rate for interference-limited subframes based on what the UE can sustain instead of based only on the RI reported by the UE.

公开(公告)号：US09497735B2

公开(公告)日：2016-11-15

申请号：US14012540

申请日：2013-08-28

Applicant: FUJITSU LIMITED

Inventor： Takashi Seyama ,  Takashi Dateki

IPC: H04J3/00 ,  H04W72/04 ,  H04L1/00 ,  H04L5/00 ,  H04L1/12 ,  H04L27/26

CPC classification number: H04W72/04 ,  H04L1/0026 ,  H04L1/0079 ,  H04L1/0086 ,  H04L5/0016 ,  H04L5/0044 ,  H04L5/0055 ,  H04L5/0057 ,  H04L27/2636 ,  H04L2001/125 ,  H04W72/0466 ,  H04W72/0473

Abstract: A transmitter time-division-multiplexes, in time domain, to assign at least a part of a second signal stream of a second channel being relatively high error-resilient compared to a first signal stream of a first channel between a boundary of the blocks and the first signal stream of the first channel of a time-division-multiplexing signal.

公开(公告)号：US20160286553A1

公开(公告)日：2016-09-29

申请号：US15176948

申请日：2016-06-08

Applicant: Samsung Electronics Co., Ltd.

Inventor： Ismael GUTIERREZ ,  Alain MOURAD

IPC: H04W72/04 ,  H04W72/00

CPC classification number: H04L5/0053 ,  H04L1/0057 ,  H04L1/008 ,  H04L1/0084 ,  H04L1/0086 ,  H04L27/2602 ,  H04L65/607 ,  H04W72/005 ,  H04W72/04 ,  H04W72/0446

Abstract: A method of transmitting at least one data stream by a transmitter in a wireless communication system and an apparatus in a transmission device for transmitting at least one data stream in a wireless communication system are provided. The method includes generating a frame including a preamble section and a data section, the preamble section including signaling information and the data section including at least one data stream; and transmitting the generated frame, wherein the signaling information comprises first information related to the at least one data stream of the frame, second information related to the first information of the frame, at least one parity bit for decoding third information related to at least one data stream of a next frame, and information indicating a use of the at least one parity bit.

Abstract translation: 提供了一种在无线通信系统中的发射机发送至少一个数据流的方法和用于在无线通信系统中发送至少一个数据流的传输设备中的装置。 所述方法包括：生成包括前导码部分和数据部分的帧，所述前导码部分包括信令信息，所述数据部分包括至少一个数据流; 并且发送所生成的帧，其中所述信令信息包括与所述帧的所述至少一个数据流相关的第一信息，与所述帧的所述第一信息相关的第二信息，用于解码与至少一个相关的第三信息的至少一个奇偶校验位 下一帧的数据流，以及指示使用该至少一个奇偶校验位的信息。

公开(公告)号：US09363704B2

公开(公告)日：2016-06-07

申请号：US14310970

申请日：2014-06-20

Applicant: Apple Inc.

Inventor： Tarik Tabet ,  Farouk Belghoul ,  S. Aon Mujtaba

IPC: H04W72/04 ,  H04W28/02 ,  H04L1/00 ,  H04W72/08 ,  H04W76/02

CPC classification number: H04W28/0263 ,  H04L1/00 ,  H04L1/0059 ,  H04L1/0066 ,  H04L1/0086 ,  H04L47/2475 ,  H04W72/087 ,  H04W76/15

Abstract: Selecting a physical channel for cellular communication based on application traffic pattern. A radio bearer may be established between a wireless device and a base station. A physical downlink channel may be selected for the radio bearer. The physical downlink channel may be selected based on an application traffic pattern of an application associated with the radio bearer. In some instances, a physical uplink channel may also be selected based on an application traffic pattern of an application associated with the radio bearer.

Abstract translation: 基于应用流量模式选择用于蜂窝通信的物理信道。 可以在无线设备和基站之间建立无线承载。 可以为无线承载选择物理下行链路信道。 可以基于与无线承载相关联的应用的应用业务模式来选择物理下行链路信道。 在一些情况下，还可以基于与无线电承载相关联的应用的应用业务模式来选择物理上行链路信道。