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公开(公告)号：US11134521B2
公开(公告)日：2021-09-28
申请号：US15660769
申请日：2017-07-26
Applicant: Futurewei Technologies, Inc.
Inventor： Bin Liu , Pengfei Xia
Abstract: According to some embodiments, a base station (BS) transmits a first allocation of a plurality of channel subsets to user equipments (UEs) for contention transmission of the UEs to the BS. The first allocation allocates one or more channel subsets to each UE so that each UE can only contend for channels within a channel subset allocated to the UE using a contention-based mechanism. In response to receipt of the first allocation, one or more UEs send requests to the BS requesting for access of channels for uplink transmissions determined by the one or more UEs. The BS determines, based on at least the requests sent by the UEs, channels to be allocated to the UEs for performing uplink transmissions, and sends a second allocation indicating the allocated channels. The UEs then perform uplink transmissions based on the second allocation.
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公开(公告)号：US11012210B2
公开(公告)日：2021-05-18
申请号：US16563560
申请日：2019-09-06
Applicant: Futurewei Technologies, Inc.
Inventor： Pengfei Xia , Bin Liu
Abstract: An embodiment method defines a demodulation reference signal (DMRS) pattern for transmitting DMRSs for rank 3 or rank 4 transmissions. The DMRS pattern specifies 12 REs in total per physical resource block (PRB) for carrying DMRSs on three or four antenna ports in antenna ports 7-14 for rank 3 or rank 4 transmissions. DMRS settings for transmitting DMRS according to the DMRS pattern may be specified using a downlink control information table.
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公开(公告)号：US10951285B2
公开(公告)日：2021-03-16
申请号：US15587309
申请日：2017-05-04
Applicant: Futurewei Technologies, Inc.
Inventor： Aimin Justin Sang , Bin Liu , Hongcheng Zhuang
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, L2and L3 processing elements and configured to generate a report for a mobility event.
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公开(公告)号：US10931514B2
公开(公告)日：2021-02-23
申请号：US15890925
申请日：2018-02-07
Applicant: Futurewei Technologies, Inc.
Inventor： Pengfei Xia , Bin Liu
IPC: H04W72/04 , H04W74/08 , H04W72/14 , H04W74/00 , H04L12/24 , H04L5/00 , H04B7/08 , H04B7/06 , H04W16/28 , H04W76/27 , H04W88/02
Abstract: A method for operating an access node includes generating a configuration message including information specifying a set of reference signals of a first reference signal type and a set of reference signals of a second reference signal type used to identify a new beam, and information specifying random access channel resources allocated for transmitting preamble sequences, wherein each random access channel resource is associated with a reference signal of the first reference signal type, sending, to one or more user equipments (UEs), the configuration message, receiving, from a UE, a preamble sequence on one of the random access channel resources, and determining an identity of the UE in accordance with the preamble sequence and the one of the random access channel resources.
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公开(公告)号：US20210051488A1
公开(公告)日：2021-02-18
申请号：US16944888
申请日：2020-07-31
Applicant: Futurewei Technologies, Inc.
Inventor： Richard Stirling-Gallacher , Nathan Edward Tenny , Bin Liu , Lili Zhang
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.
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Patent Agency Ranking
公开(公告)号：US20200344092A1
公开(公告)日：2020-10-29
申请号：US16871876
申请日：2020-05-11
Applicant: Futurewei Technologies, Inc.
Inventor： Richard Stirling-Gallacher , Bin Liu , Pengfei Xia , Nathan Edward Tenny , Hongcheng Zhuang
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.
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公开(公告)号：US20200304187A1
公开(公告)日：2020-09-24
申请号：US16894038
申请日：2020-06-05
Applicant: Futurewei Technologies, Inc.
Inventor： Pengfei Xia , Bin Liu
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.
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公开(公告)号：US20200220772A1
公开(公告)日：2020-07-09
申请号：US16820283
申请日：2020-03-16
Applicant: Futurewei Technologies, Inc.
Inventor： Pengfei Xia , Bin Liu
IPC: H04L12/24 , H04B7/08 , H04L5/00 , H04W16/28 , H04W72/04 , H04W72/14 , H04W74/00 , H04W74/08 , H04B7/06
Abstract: A method for operating an access node includes generating a configuration message including information specifying a set of reference signals of a first reference signal type and a set of reference signals of a second reference signal type used to identify a new beam, and information specifying random access channel resources allocated for transmitting preamble sequences, wherein each random access channel resource is associated with a reference signal of the first reference signal type, sending, to one or more user equipments (UEs), the configuration message, receiving, from a UE, a preamble sequence on one of the random access channel resources, and determining an identity of the UE in accordance with the preamble sequence and the one of the random access channel resources.
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公开(公告)号：US10687367B2
公开(公告)日：2020-06-16
申请号：US16160776
申请日：2018-10-15
Applicant: Futurewei Technologies, Inc.
Inventor： Bin Liu , Yongbo Zeng , Jian Wang , Guorong Li , Yu Cai
Abstract: A method of performing a random access procedure includes randomly selecting a backoff time from within a backoff window ranging from 0 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.
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公开(公告)号：US10680689B2
公开(公告)日：2020-06-09
申请号：US15839382
申请日：2017-12-12
Applicant: Futurewei Technologies, Inc.
Inventor： Pengfei Xia , Bin Liu
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.
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