公开(公告)号：US10567074B2

公开(公告)日：2020-02-18

申请号：US15759745

申请日：2016-04-01

Applicant: INTEL IP CORPORATION

Inventor： Sabine Roessel ,  Holger Neuhaus ,  Yeong-Sun Hwang ,  Bertram Gunzelmann ,  Andreas Menkhoff ,  Elmar Wagner ,  Jong-Kae Fwu ,  Xiangyang Zhuang

IPC: H04B7/26 ,  H04L5/14 ,  H04L27/26 ,  H04L5/00 ,  H04W72/04

Abstract: Methods and apparatus for communicating in a wireless network including apparatus comprising transceiver circuitry to send and receive data in a plurality of time periods, defined by a time division duplex (TDD) time grid, to another entity, the plurality of time periods corresponding to a plurality of orthogonal frequency division multiplexing (OFDM) symbols and the transceiver circuitry being operable to switch from receive mode to transmit mode and/or from transmit mode to receive mode according to a flexible uplink and downlink allocation of the plurality of time periods; and baseband circuitry coupled to the transceiver circuitry to control the transceiver circuitry to switch during a switching interval embedded within a time period corresponding to an OFDM symbol of the plurality of OFDM symbols.

公开(公告)号：US09942069B2

公开(公告)日：2018-04-10

申请号：US15246589

申请日：2016-08-25

Applicant: Intel IP Corporation

Inventor： Matthew Hayes ,  Goochul Chung ,  Chris Quanbeck ,  Xiangyang Zhuang

IPC: H04J11/00 ,  H04L27/14 ,  H04L5/00 ,  H04L27/26

CPC classification number: H04L27/14 ,  H04J11/00 ,  H04J11/0069 ,  H04L5/0048 ,  H04L27/261 ,  H04L27/2662 ,  H04L27/2671 ,  H04L27/2675

Abstract: A method and mobile communication device adapted for frequency synchronization with a radio access network (RAN) based on frequency shift detection in a first signal received at the mobile communication device, including: offsetting the first signal's frequency by a first value extracted from a second signal received at the mobile communication device; generating a replica of the first signal from a second value extracted from a third signal received at the mobile communication device; multiplying a component of the offset first signal with the replica to generate a product; transforming the product into a frequency-domain signal; and detecting a peak in the frequency-domain signal to determine the frequency shift.

公开(公告)号：US09900134B2

公开(公告)日：2018-02-20

申请号：US14747663

申请日：2015-06-23

Applicant: Intel IP Corporation

Inventor： Hwan-Joon Kwon ,  Youn Hyoung Heo ,  Seunghee Han ,  Pingping Zong ,  Xiangyang Zhuang

IPC: H04L5/00 ,  H04W16/14 ,  H04L27/00

CPC classification number: H04L5/0048 ,  H04L27/0006 ,  H04W16/14

Abstract: A user equipment device comprises physical layer circuitry configured to transmit and receive radio frequency electrical signals with one or more nodes of a radio access network, including monitor at least one of a communication channel unlicensed to a long term evolution (LTE) network (LTE-U) or a communication channel of a licensed assisted access (LAA) network and detect a reference signal (RS) of a subframe communicated using the at least one communication channel; and processing circuitry configured to measure a channel metric over at least a portion of the subframe that includes the RS, and process information included in the subframe according to an LTE communication protocol when the measured channel metric satisfies a specified channel metric threshold value.