公开(公告)号：US09955374B2

公开(公告)日：2018-04-24

申请号：US15040011

申请日：2016-02-10

Applicant: Telefonaktiebolaget L M Ericsson (publ)

Inventor： Sairamesh Nammi ,  Muhammad Kazmi ,  Namir Lidian

IPC: H04W24/10 ,  H04L1/00 ,  H04L1/06 ,  H04L1/20 ,  H04L5/00 ,  H04W52/22 ,  H04W72/02 ,  H04W72/04

CPC classification number: H04W24/10 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/20 ,  H04L5/0057 ,  H04W52/228 ,  H04W72/02 ,  H04W72/0413

Abstract: Disclosed herein, among other things, is a method performed by a user equipment (UE) for providing to a network channel station information (CSI). The method comprises: receiving from the network two measurement power offsets, a first measurement power offset and a second measurement power offset; selecting one of said two measurement power offsets; computing CSI using the selected measurement power offset; and transmitting to the network the determined CSI.

公开(公告)号：US09954710B2

公开(公告)日：2018-04-24

申请号：US15419088

申请日：2017-01-30

Applicant: Sony Deutschland GmbH

Inventor： Seiichi Izumi

IPC: H04L27/26 ,  H04W52/02 ,  H04L25/02

CPC classification number: H04L27/263 ,  H04B1/0475 ,  H04B1/0483 ,  H04B7/0413 ,  H04B7/0613 ,  H04B7/0615 ,  H04B7/0626 ,  H04B7/066 ,  H04B7/0697 ,  H04B7/0842 ,  H04B7/0857 ,  H04L1/0001 ,  H04L1/06 ,  H04L5/0003 ,  H04L5/0007 ,  H04L5/0023 ,  H04L5/0044 ,  H04L5/005 ,  H04L5/0058 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/0242 ,  H04L27/2628 ,  H04L27/2647 ,  H04W52/02 ,  Y02D70/00 ,  Y02D70/40 ,  Y02D70/444

Abstract: A communication device for transmitting orthogonal frequency division multiplexed (OFDM) signals in a wireless communication system. The device includes a plurality of antenna elements that transmit the OFDM signals to a receiver over a plurality of transmission channels in the wireless communication system. The device also generates weight coefficients applied to each of the plurality of subcarrier signals, and controls an amplitude and/or phase of the plurality of subcarrier signals as a function of said weight coefficients.

公开(公告)号：US09949243B2

公开(公告)日：2018-04-17

申请号：US13993023

申请日：2012-06-27

Applicant: Maruti Gupta ,  Ali Taha Koc ,  Rath Vannithamby

Inventor： Maruti Gupta ,  Ali Taha Koc ,  Rath Vannithamby

IPC: H04W72/04 ,  H04W72/12 ,  H04W72/08 ,  H04W88/06 ,  H04B7/06 ,  H04L1/00 ,  H04L1/06 ,  H04B15/00 ,  H04W8/02 ,  H04W24/00 ,  H04W52/24 ,  H04W52/02 ,  H04L5/00 ,  H04L27/34 ,  H04L5/14 ,  H04W4/00 ,  H04W72/02 ,  H04W76/02 ,  H04W52/14 ,  H04W24/08 ,  H04W76/04 ,  H04L27/36 ,  H04W52/32 ,  H04W84/04

CPC classification number: H04W72/042 ,  H04B7/0697 ,  H04B15/00 ,  H04L1/0025 ,  H04L1/0038 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/06 ,  H04L5/0037 ,  H04L5/14 ,  H04L27/34 ,  H04L27/362 ,  H04W4/70 ,  H04W8/02 ,  H04W24/00 ,  H04W24/08 ,  H04W52/0209 ,  H04W52/0212 ,  H04W52/0251 ,  H04W52/0258 ,  H04W52/143 ,  H04W52/242 ,  H04W52/244 ,  H04W52/325 ,  H04W72/02 ,  H04W72/04 ,  H04W72/0446 ,  H04W72/082 ,  H04W72/1215 ,  H04W72/1278 ,  H04W76/19 ,  H04W76/28 ,  H04W84/042 ,  H04W88/06 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1226 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/146 ,  Y02D70/164 ,  Y02D70/168 ,  Y02D70/21 ,  Y02D70/23 ,  Y02D70/24 ,  Y02D70/444

Abstract: Embodiments of user equipment (UE) and methods for application-agnostic discontinuous reception (DRX) triggering are generally described herein. In some embodiments, a UE is configured to monitor buffer status history and traffic activity history, and trigger DRX mode activation based on the buffer status and the traffic activity history. In some embodiments, the UE may determine a probability, based on the buffer status history and the traffic activity history, that a level of traffic activity that cannot be handled during DRX mode would occur. In these embodiments, the UE may trigger DRX mode activation when the probability is below a threshold.

公开(公告)号：US09948364B2

公开(公告)日：2018-04-17

申请号：US15389612

申请日：2016-12-23

Applicant: INSTITUT MINES-TELECOM

Inventor： Asma Mejri ,  Mohamed-Achraf Khsiba ,  Ghaya Rekaya Ben-Othman

IPC: H04B7/00 ,  H04B7/0413 ,  H04B7/06 ,  H04L27/26 ,  H04L1/04 ,  H04L1/06 ,  H04L25/03 ,  H04W84/04 ,  H04W84/12

CPC classification number: H04B7/0413 ,  H04B7/0697 ,  H04L1/04 ,  H04L1/06 ,  H04L25/03 ,  H04L27/2649 ,  H04W84/042 ,  H04W84/12

Abstract: Embodiments of the invention provide a decoder for decoding a data signal received through a transmission channel in a communication system, said transmission channel being represented by an upper triangular matrix, said signal carrying transmitted symbols, each symbol carrying a set of information bits, wherein said decoder comprises: a processing unit (213) configured to determine at least one sub-block decoding parameter given a target quality of service metric; A sub-block decoding unit (214) configured to divide said data signal into a number of sub-vectors based on said at least one sub-block decoding parameter in accordance with a division of said upper triangular matrix into a number of sub-matrices, said sub-block decoding unit (214) being further configured to determine at least one estimate of each sub-vector of transmitted symbols from said sub-vectors, and determine an estimate of the transmitted symbols from said estimates.

公开(公告)号：US20180102844A1

公开(公告)日：2018-04-12

申请号：US15828338

申请日：2017-11-30

Applicant: Facebook, Inc.

Inventor： Shih-Cheng Wang

IPC: H04B10/112 ,  H04B10/50 ,  H04J14/02 ,  H04L7/033

CPC classification number: H04B10/112 ,  H04B10/1121 ,  H04B10/1129 ,  H04B10/501 ,  H04B10/66 ,  H04J14/02 ,  H04L1/00 ,  H04L1/06 ,  H04L7/0331

Abstract: Optical communication systems and methods using coherently combined optical beams are disclosed. A representative system includes a first data source for sending first data at a first frequency of a first optical beam to a first aperture, and at a second frequency of a second optical beam to a second aperture. The system further includes a second data source for sending second data at a third frequency of a third optical beam to the first aperture, and at a fourth frequency of a fourth optical beam to the second aperture. The system also includes a first interleaver of the first aperture configured to interleave the first data at the first frequency and the second data at the third frequency; and a second interleaver of the second aperture configured to interleave the first data at the second frequency and the second data at fourth frequency.

公开(公告)号：US09941985B2

公开(公告)日：2018-04-10

申请号：US15289658

申请日：2016-10-10

Applicant: LG ELECTRONICS INC.

Inventor： Jinyong Choi ,  Byounggill Kim ,  Woochan Kim ,  Jaehyung Kim ,  Woosuk Ko ,  Sungryong Hong ,  Chulkyu Mun ,  Jaeho Hwang ,  Jongseob Baek ,  Kookyeon Kwak ,  Sangchul Moon

IPC: H04H20/44 ,  H04B7/0413 ,  H04L1/00 ,  H04L1/06 ,  H04B7/0456 ,  H04L27/20 ,  H04L27/34 ,  H04B7/10 ,  H04L5/00

CPC classification number: H04H20/44 ,  H04B7/0413 ,  H04B7/0456 ,  H04B7/10 ,  H04L1/0041 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0065 ,  H04L1/0071 ,  H04L1/06 ,  H04L5/0007 ,  H04L5/0023 ,  H04L27/2046 ,  H04L27/34

Abstract: The present invention provides a method of transmitting broadcast signals. The method includes, formatting input streams into Data Pipe, DP, data; Low-Density Parity-Check, LDPC, encoding the DP data according to a code rate; bit interleaving the LDPC encoded DP data; mapping the bit interleaved DP data onto constellations according to one of QAM (Quadrature Amplitude Modulation), NUQ (Non-Uniform QAM) or NUC (Non-Uniform Constellation); Multi-Input Multi-Output, MIMO, encoding the mapped DP data by using a MIMO encoding matrix having a MIMO encoding parameter; building at least one signal frame by mapping the MIMO encoded DP data; and modulating data in the built signal frame by an Orthogonal Frequency Division Multiplexing, OFDM, method and transmitting the broadcast signals having the modulated data.

公开(公告)号：US09935799B2

公开(公告)日：2018-04-03

申请号：US15404910

申请日：2017-01-12

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka Murakami ,  Kiyotaka Kobayashi ,  Masayuki Orihashi ,  Akihiko Matsuoka

IPC: H04L27/00 ,  H04B7/0417 ,  H04L1/00 ,  H04L1/06 ,  H04L1/08 ,  H04L27/34 ,  H04L5/00 ,  H04B7/0413 ,  H04B7/06 ,  H04W52/42

CPC classification number: H04L27/0008 ,  H04B7/0413 ,  H04B7/0417 ,  H04B7/0669 ,  H04L1/0006 ,  H04L1/0026 ,  H04L1/06 ,  H04L1/0618 ,  H04L1/08 ,  H04L5/0046 ,  H04L27/3405 ,  H04W52/42

Abstract: Modulated signal A is transmitted from a first antenna, and modulated signal B is transmitted from a second antenna. As modulated signal B, modulated symbols S2(i) and S2(i+1) obtained from different data are transmitted at time i and time i+1 respectively. In contrast, as modulated signal A, modulated symbols S1(i) and S1(i)′ obtained by changing the signal point arrangement of the same data are transmitted at time i and time i+1 respectively. As a result the reception quality can be changed intentionally at time i and time i+1, and therefore using the demodulation result of modulated signal A of a time when the reception quality is good enables both modulated signals A and B to be demodulated with good error rate performances.

公开(公告)号：US09929980B2

公开(公告)日：2018-03-27

申请号：US14621157

申请日：2015-02-12

Applicant: CommScope Technologies LLC

Inventor： Christopher G. Ranson ,  Mathias A. Schmalisch ,  Van E. Hanson

IPC: H04L12/939 ,  H04L27/26 ,  H04L12/64 ,  H04B7/00 ,  H04W24/04 ,  H04L1/06 ,  H04L29/06 ,  H04L12/70

CPC classification number: H04L49/557 ,  H04B7/00 ,  H04L1/06 ,  H04L12/6418 ,  H04L27/2656 ,  H04L49/552 ,  H04L69/22 ,  H04L2012/5674 ,  H04W24/04

Abstract: Certain features relate to improving the link-fault tolerance in a distributed antenna system (DAS) by utilizing a series of synchronous Ethernet frames. A receiving remote unit or a head-end unit in the DAS can predict the start of incoming Ethernet frames based on frame information extracted from previously received Ethernet frames. For example, a remote unit can be configured to receive one or more Ethernet frames, each of the one or more Ethernet frames including a start-of-frame field. After a period of time corresponding to the frame repetition rate, the remote unit can search for an additional start-of-frame field, indicating the receipt of the next Ethernet frame. The remote unit can extract the payload data from the next Ethernet frame based on the predicted value for the additional start-of-frame field.

公开(公告)号：US20180069569A1

公开(公告)日：2018-03-08

申请号：US15808411

申请日：2017-11-09

Applicant: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA

Inventor： Yutaka MURAKAMI ,  Kiyotaka Kobayashi ,  Choo Eng Yap

IPC: H03M13/11 ,  H04L5/00 ,  H04L1/00 ,  H04L1/18 ,  H04L1/06 ,  H03M13/29

CPC classification number: H03M13/1105 ,  H03M13/1102 ,  H03M13/1157 ,  H03M13/1174 ,  H03M13/1177 ,  H03M13/2909 ,  H04B7/0413 ,  H04L1/0045 ,  H04L1/0057 ,  H04L1/0061 ,  H04L1/06 ,  H04L1/1816 ,  H04L1/1893 ,  H04L5/0023 ,  H04L5/0037 ,  H04L5/0044

Abstract: In a multi-antenna communication system using LDPC codes, a simple method is used to effectively improve the received quality by performing a retransmittal of less data without restricting applicable LDPC codes. In a case of a non-retransmittal, a multi-antenna transmitting apparatus transmits, from two antennas, LDPC encoded data formed by LDPC encoding blocks. In a case of a retransmittal, the multi-antenna transmitting apparatus uses a transmission method, in which the diversity gain is higher than in the previous transmission, to transmit only a part of the LDPC encoded data as previously transmitted. For example, the only the part of the LDPC encoded data to be re-transmitted is transmitted from the single antenna.

公开(公告)号：US20180059769A1

公开(公告)日：2018-03-01

申请号：US15683553

申请日：2017-08-22

Applicant: Qualcomm Incorporated

Inventor： Prashant Udupa SRIPATHI ,  Chinmay Vaze ,  Hongbo Yan ,  Raghu Challa

IPC: G06F1/32 ,  H04W52/02 ,  H04B7/26 ,  H04L12/18

CPC classification number: G06F1/3278 ,  G06F1/3225 ,  H04B7/2603 ,  H04L1/0053 ,  H04L1/06 ,  H04L12/189 ,  H04W52/0232 ,  H04W52/0245 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/449

Abstract: A method, a user equipment, an apparatus, and a computer program product for wireless communication are provided. The user equipment may identify a power consumption condition that relates to a downlink channel associated with the user equipment. The power consumption condition may correspond to a time period that is shorter than or equal to a transmission time interval of the user equipment. The user equipment may configure one or more modems of the user equipment to reduce power consumption during the time period.