公开(公告)号：US20180254922A1

公开(公告)日：2018-09-06

申请号：US15448102

申请日：2017-03-02

Applicant: Futurewei Technologies, Inc.

Inventor： Richard Stirling-Gallacher ,  Bin Liu ,  Pengfei Xia ,  Nathan Edward Tenny ,  Hongcheng Zhuang

IPC: H04L25/02 ,  H04L5/00 ,  H04W72/04

Abstract: A method for transmitting feedback includes generating explicit channel feedback for a plurality of transmit beam-receive beam combinations (TRBCs) between the user device and a transmit-receive point (TRP), generating a modified resource in accordance with explicit feedback configuration information, the modified resource configured to convey the explicit channel feedback, wherein an explicit channel feedback associated with each TRBC is conveyed on a different data symbol of the modified resource, and transmitting the modified resource to the TRP using a single TRBC.

公开(公告)号：US10057787B2

公开(公告)日：2018-08-21

申请号：US15092388

申请日：2016-04-06

Applicant: Futurewei Technologies, Inc.

Inventor： Richard Stirling-Gallacher ,  Nathan Edward Tenny ,  Bin Liu ,  Lili Zhang

IPC: H04L12/28 ,  H04W16/28 ,  H04W24/08 ,  H04W56/00

CPC classification number: H04W16/28 ,  H04B7/024 ,  H04B7/0617 ,  H04W24/08 ,  H04W56/001

Abstract: A method includes measuring beam-formed reference signals transmitted by a plurality of mmWave transmission points (TPs), sending a cloud cell formation request including indicators associated with best mmWave TPs determined in accordance with the measured beam-formed reference signals, receiving a cloud cell formation request response including indicators associated with a subset of the best mmWave TPs selected by a central controller in accordance with selection information, where the subset of the best mmWave TPs includes a first mmWave transmission point (TP) serving as a master TP and a second mmWave TP serving as a slave TP, and establishing a cloud cell with mmWave TPs of the subset of the best mmWave TPs selected by the central controller, where a data connection is established with the slave TP and at least a control connection is established with the master TP.

公开(公告)号：US20180199328A1

公开(公告)日：2018-07-12

申请号：US15587309

申请日：2017-05-04

Applicant: Futurewei Technologies, Inc.

Inventor： Aimin Justin Sang ,  Bin Liu ,  Hongcheng Zhuang

IPC: H04W72/04

Abstract: A communication device includes a level one (L1) processing element configured to measure downlink (DL) reference signals from multiple beams received via a transceiver to generate L1 data describing the multiple beams. The device also includes a level two (L2) processing element configured to consolidate, select, or filter the multiple beams responsive to the L1 data to produce L2 data corresponding to one or more of the multiple beams in a first cell that are consistent with preconfigured parameters. Furthermore, the device includes a level three (L3) processing element coupled to the L1 and L2 processing elements and configured to generate L3 data corresponding to one or more of the multiple beams in each of the first cell and a second cell. The device also includes a report generator coupled to the L1, L2 and L3 processing elements and configured to generate a report for a mobility event.

公开(公告)号：US20180192375A1

公开(公告)日：2018-07-05

申请号：US15821319

申请日：2017-11-22

Applicant: Futurewei Technologies, Inc.

Inventor： Pengfei Xia ,  Bin Liu ,  Richard Stirling-Gallacher

IPC: H04W52/14 ,  H04W52/32 ,  H04B7/06 ,  H04W52/36

Abstract: A method for controlling an uplink signal transmit power at the user equipment and a UE configured to perform such a method are disclosed. In an embodiment, the method includes receiving a downlink reference signal transmit power associated with a first resource indicator, a downlink reference signal transmit beamforming gain associated with a second resource indicator, an uplink signal receive beamforming gain associated with a third resource indicator, and an uplink signal target receive power associated with a fourth resource indicator and transmitting an uplink signal associated with a fifth resource indicator to a transmission point with a transmit power calculated based on the combination, wherein the downlink reference signal transmit power associated with the first resource indicator and the downlink reference signal transmit beamforming gain associated with the second resource indicator are signaled together as a single metric associated with a sixth resource indicator.

公开(公告)号：US20180191418A1

公开(公告)日：2018-07-05

申请号：US15839382

申请日：2017-12-12

Applicant: Futurewei Technologies, Inc.

Inventor： Pengfei Xia ,  Bin Liu

IPC: H04B7/06 ,  H04L5/00 ,  H04B17/318 ,  H04W16/28 ,  H04W72/04

Abstract: Embodiments of this disclosure provide techniques for determining a device's beam correspondence status. As used herein, a device is considered to have “beam correspondence” when the device's TX and RX antennas satisfy a calibration criteria. In one example, a device's TX and RX antennas satisfy the calibration criteria when a difference between quality parameters corresponding to reference signals transmitted and received using corresponding TX and RX beams is less than a threshold. In another example, a device's TX and RX antennas satisfy the calibration criteria when a list of indices ranking the device's TX beams matches a list of indices ranking the device's RX beams. The lists of indices may be derived by transmitting and receiving references signals according to the devices RX and TX beams, and then generating list of indices based on quality parameters of the respective RX and TX beams.

公开(公告)号：US20180175997A1

公开(公告)日：2018-06-21

申请号：US15897576

申请日：2018-02-15

Applicant: Futurewei Technologies, Inc.

Inventor： Bin Liu ,  Richard Stirling-Gallacher ,  Jian Wang ,  Lili Zhang

IPC: H04L5/14 ,  H04W52/04 ,  H04L1/00

Abstract: A method for operating a communications controller adapted for full duplex (FD) operation includes receiving a measurement report from a user equipment served by the communications controller, the measurement report indicating a first power margin between a current transmit power and a transmit power break point and a second power margin between the current transmit power and a maximum transmit power capable of supporting FD operation, performing FD link adaptation (LA) in accordance with the first power margin and the second power margin to adjust one or more FD configuration parameters of a link between the communications controller and the user equipment, wherein the link includes a downlink and an uplink, and instructing the user equipment to communicate over the link in accordance with the one or more FD configuration parameters.

公开(公告)号：US20180131486A1

公开(公告)日：2018-05-10

申请号：US15800955

申请日：2017-11-01

Applicant: FutureWei Technologies, Inc.

Inventor： Bin Liu ,  Pengfei Xia

IPC: H04L5/00 ,  H04W72/04

CPC classification number: H04L5/0048 ,  H04B7/063 ,  H04B7/0639 ,  H04B7/066 ,  H04B7/0695 ,  H04L5/0057 ,  H04L25/0226 ,  H04W72/046

Abstract: Embodiments of this disclosure provide techniques for receiving reference signals by a user equipment (UE) from a base station in a downlink channel, as well as transmitting a linear combination index from the UE to the base station. In particular, the linear combination index identifies a combination of beams selected from a set of beams in accordance with the RS.

公开(公告)号：US20180092067A1

公开(公告)日：2018-03-29

申请号：US15278896

申请日：2016-09-28

Applicant: Futurewei Technologies, Inc.

Inventor： Bin Liu ,  Yongbo Zeng ,  Richard Stirling-Gallacher ,  Aimin Justin Sang

IPC: H04W72/04 ,  H04W76/02

CPC classification number: H04W72/04 ,  H04W72/048 ,  H04W72/0486 ,  H04W76/14

Abstract: A system and method for device-to-device (D2D) communication includes detecting, by a transmitting user equipment (UE) of a plurality of UEs, a sidelink type of a receiving UE of the plurality of UEs, the sidelink type used by the receiving UE to communicate on a discovery channel, determining, by the transmitting UE, a pool of resources for an air interface supported by the receiving UE and the transmitting UE, selecting, by the transmitting UE, transmission resources from the pool of resources according to the sidelink type of the receiving UE, indicating, by the transmitting UE, the transmission resources to the receiving UE over the discovery channel, and communicating, by the transmitting UE, directly with the receiving UE using the transmission resources

公开(公告)号：US20170325268A1

公开(公告)日：2017-11-09

申请号：US15659909

申请日：2017-07-26

Applicant: Futurewei Technologies, Inc.

Inventor： Bin Liu ,  Yongbo Zeng ,  Jian Wang ,  Guorong Li ,  Yu Cai

IPC: H04W74/08 ,  H04W72/04

CPC classification number: H04W74/0833 ,  H04W72/0413 ,  H04W74/0841

Abstract: A method of performing a random access procedure includes randomly selecting a backoff time from within a backoff window ranging from o to a specified multiple of a random access preamble unit, waiting until a time initialized with the backoff time expires, and retransmitting a random access preamble.

公开(公告)号：US20170317866A1

公开(公告)日：2017-11-02

申请号：US15139987

申请日：2016-04-27

Applicant: Futurewei Technologies, Inc.

Inventor： Richard Stirling-Gallacher ,  Nathan Edward Tenny ,  Bin Liu

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

CPC classification number: H04L27/261 ,  H04B7/0695 ,  H04B7/08 ,  H04B7/088 ,  H04L5/0048 ,  H04L5/1469

Abstract: A system and method of communicating sounding reference signals (SRSs) in a cellular time division duplex (TDD) mmWave system. A transmission point (TP) may transmit beamformed reference signals to a user equipment (UE), each of the beamformed reference signals having been transmitted according to a beam direction in a set of beam directions available to the TP. The TP may receive a feedback message from the UE that identifies one of the beamformed reference signals transmitted to the UE. The TP may select, from the set of beam directions available to the TP, a subset of beam directions for SRS reception based on the feedback message received from the UE, and receive uplink SRS signals according to beam directions in the subset of beam directions. The set of beam directions available to the TP includes at least one beam direction that is excluded from the subset of beam directions.