公开(公告)号：US11184836B2

公开(公告)日：2021-11-23

申请号：US16011223

申请日：2018-06-18

Applicant: Futurewei Technologies, Inc.

Inventor： Jialing Liu ,  Weimin Xiao ,  Qian Cheng ,  Vipul Desai

IPC: H04W48/12 ,  H04W56/00 ,  H04W24/08 ,  H04L5/00 ,  H04W24/10 ,  H04W48/16 ,  H04W52/02 ,  H04W36/00

Abstract: System and method embodiments are provided for network adaptation and utilization of a discovery signal (DS). In an embodiment, a method in a UE for communicating in a wireless network includes receiving a parameter(s) from a network controller, wherein the parameter provides the UE with an activation time frame within which the UE can expect to receive a common reference signal (CRS) from a network component, a deactivation time frame within which the UE is not to expect to receive the CRS, and information for receiving and processing a DS from the network component; receiving the DS from the network component, wherein a structure and format of the DS conforms to the parameter received by the UE; refraining from attempting to perform CRS based procedures when the CRS is not received; and performing one of synchronization, cell identification, and DS based radio resource management (RRM) measurements according to the DS.

公开(公告)号：US20210359799A1

公开(公告)日：2021-11-18

申请号：US17391605

申请日：2021-08-02

Applicant: Futurewei Technologies, Inc.

Inventor： Philippe Sartori ,  Vipul Desai ,  Qian Cheng ,  Lukasz Krzymien ,  Carmela Cozzo ,  Weimin Xiao ,  Anthony C.K. Soong

IPC: H04L5/00 ,  H04W72/12

Abstract: A system and method of scheduling transmissions. A wireless device such as an eNodeB (eNB) may schedule a transmission of a wideband (WB) signal on a micro-frame selected from a plurality of WB micro-frames of a WB carrier. A narrowband (NB) subframe may span a portion of the selected WB micro-frame in the frequency-domain, and the selected WB micro-frame may overlap at least a portion of the NB subframe in the time-domain. The WB signal and an NB signal may be transmitted over the WB micro-frame and the NB subframe in accordance with a first numerology and a second numerology, respectively. A WB subframe may be divided into a plurality of micro-frames. The transmission direction of the WB micro-frame may be scheduled according to a transmission rule based on the contents of a payload in the NB subframe.

公开(公告)号：US20210075563A1

公开(公告)日：2021-03-11

申请号：US17101974

申请日：2020-11-23

Applicant: Futurewei Technologies, Inc.

Inventor： Qian Cheng ,  Weimin Xiao ,  Philippe Sartori ,  Jialing Liu

IPC: H04L5/00 ,  H04W72/14 ,  H04L25/00

Abstract: Methods for wireless communications over a wideband carrier are provided. Time-frequency resources of the wideband carrier within a transmission time interval are divided into multiple time-frequency resource blocks. Each of the time-frequency resource blocks corresponds to a group of contiguous subcarriers of the wideband carrier and orthogonal frequency division multiplexing symbols. Data streams may be scheduled to be transmitted in different time-frequency resource blocks, and may be destined for different user equipments or the same user equipment. Baseband processing operations may be performed on data streams scheduled in different time-frequency resource blocks independently from one another. Separate control channels or one common control channel may be configured for data transmissions in different time-frequency resource blocks.

公开(公告)号：US10805928B2

公开(公告)日：2020-10-13

申请号：US16036015

申请日：2018-07-16

Applicant: Futurewei Technologies, Inc.

Inventor： Jialing Liu ,  Weimin Xiao ,  Qian Cheng

IPC: H04W72/04 ,  H04L5/00 ,  H04W24/02 ,  H04W24/10

Abstract: Communications in a wireless network for carrier Selection and switching are provided. A terminal in the wireless network is simultaneously receiving data on at most m carriers. A base station in the wireless network sends an activation command associated with more than m carriers to the terminal. The terminal activates the more than m carriers. Then the base station selects a first subset from the activated carriers, and sends a first monitoring command associated with the first subset via a first physical-layer signaling to the terminal. When load and/or interference situations are changed, the base station selects a second subset from the activated carriers, and sends a second monitoring command associated with the second subset via a second physical-layer signaling to the terminal, wherein the first subset is different from the second subset.

公开(公告)号：US10790956B2

公开(公告)日：2020-09-29

申请号：US16101278

申请日：2018-08-10

Applicant: Futurewei Technologies, Inc.

Inventor： Qian Cheng ,  Weimin Xiao ,  Jialing Liu ,  Murali Narasimha

IPC: H04L5/00 ,  H04L27/26

Abstract: A network controller may configure one or more channel state information-reference signal (CSI-RS) configurations for transmitting RSs to user equipments (UEs) for tracking. A CSI-RS configuration may specify a set of CSI-RS resources for transmitting RSs in two consecutive slots. The set of CSI-RS resources may include a plurality of one-port CSI-RS resources configured according to the CSI-RS configuration. The CSI-RS configuration may specify a quasi co-location (QCL) configuration including a set of QCL parameters, where a demodulation reference signal (DMRS) has a QCL relationship with the RS with respect to the set of QCL parameters. The network controller may signal the one or more CSI-RS configurations to UEs.

公开(公告)号：US10785003B2

公开(公告)日：2020-09-22

申请号：US16242872

申请日：2019-01-08

Applicant: Futurewei Technologies, Inc.

Inventor： Jialing Liu ,  Weimin Xiao ,  Qian Cheng

IPC: H04L25/02 ,  H04L5/00 ,  H04L1/00 ,  H04L25/03 ,  H04W72/08 ,  H04B7/0456 ,  H04W72/04 ,  H04B7/10

Abstract: An embodiment method of network node operation includes indicating, by a first network node, to a first UE, a first number of REs in a first set of RBs for a first reference signal, transmitting, by the first network node, to the first UE, the first reference signal in accordance with the first number of REs and a first precoding in a first subframe, receiving, by the first network node, from the first UE, a report indicating a first MCS in accordance with a level of signal and interference measured by the first UE, wherein the measurement is restricted to the first reference signal, and transmitting, by the first network node, a first data with the indicated first MCS and the first precoding in a second subframe, the first data being transmitted on a second number of REs in the first set of RBs in the second subframe.

公开(公告)号：US10771142B2

公开(公告)日：2020-09-08

申请号：US16422637

申请日：2019-05-24

Applicant: Futurewei Technologies, Inc.

Inventor： Diana Maamari ,  Hao Zhou ,  Qian Cheng ,  Weimin Xiao

IPC: H04L1/02 ,  H04B7/06 ,  H04B7/08 ,  H04B7/04 ,  H04W24/10

Abstract: An embodiment method for beam-related information and channel state information feedback includes receiving first analog beamformed reference signals; transmitting a first report indicating a set of selected analog beamformed reference signals and a transmission rank that jointly maximize a first performance criterion for subsequent transmissions by a transmitter that transmitted the first analog beamformed reference signals; receiving second analog beamformed reference signals maximized in accordance with the set of selected analog beamformed reference signals and the transmission rank; and transmitting a second report, in accordance with the second analog beamformed reference signals, indicating a channel quality indicator and a precoding matrix indicator that maximize a second performance criterion for subsequent transmissions by the transmitter that transmitted the first analog beamformed reference signals and the second analog beamformed reference signals.

公开(公告)号：US20200252111A1

公开(公告)日：2020-08-06

申请号：US16857867

申请日：2020-04-24

Applicant: Futurewei Technologies, Inc.

Inventor： Diana Maamari ,  Jialing Liu ,  Qian Cheng ,  Weimin Xiao ,  Hao Zhou ,  Anthony C.K. Soong

IPC: H04B7/0417 ,  H04L5/00 ,  H04W72/08 ,  H04B7/06 ,  H04W72/04

Abstract: A method for operating a communication device includes receiving a first transmission including a first signal on one or more resources associated with signal reception, deriving a receive filter in accordance with the received first transmission, deriving a transmit filter in accordance with the receive filter, precoding a second signal with the transmit filter, thereby producing a second transmission, and transmitting the second transmission.

公开(公告)号：US10693602B2

公开(公告)日：2020-06-23

申请号：US15162202

申请日：2016-05-23

Applicant: Futurewei Technologies, Inc.

Inventor： Philippe Sartori ,  Vipul Desai ,  Qian Cheng ,  Lukasz Krzymien ,  Carmela Cozzo ,  Weimin Xiao ,  Anthony C. K. Soong

IPC: H04L5/00 ,  H04W72/12 ,  H04W72/04

Abstract: A system and method of scheduling transmissions. A wireless device such as an eNodeB (eNB) may schedule a transmission of a wideband (WB) signal on a micro-frame selected from a plurality of WB micro-frames of a WB carrier. A narrowband (NB) subframe may span a portion of the selected WB micro-frame in the frequency-domain, and the selected WB micro-frame may overlap at least a portion of the NB subframe in the time-domain. The WB signal and an NB signal may be transmitted over the WB micro-frame and the NB subframe in accordance with a first numerology and a second numerology, respectively. A WB subframe may be divided into a plurality of micro-frames. The transmission direction of the WB micro-frame may be scheduled according to a transmission rule based on the contents of a payload in the NB subframe.

公开(公告)号：US20190364513A1

公开(公告)日：2019-11-28

申请号：US16538331

申请日：2019-08-12

Applicant: Futurewei Technologies, Inc.

Inventor： Jialing Liu ,  Weimin Xiao ,  Qian Cheng

IPC: H04W52/14 ,  H04W52/10 ,  H04W52/24 ,  H04W72/04 ,  H04W52/08

Abstract: A method for operating a user equipment (UE) includes receiving at least one of a configuration of a first group of one or more downlink (DL) signals, a configuration of a second group of one or more open-loop power control (PC) parameters, a configuration of a third group of one or more closed-loop PC parameters, or a configuration of a fourth group of one or more loop states, receiving a configuration of a PC setting, wherein the PC setting is associated with at least one of a subset of the first group, a subset of the second group, a subset of the third group, or a subset of the fourth group, selecting a transmit power level in accordance with the PC setting and a pathloss, wherein the pathloss is determined in accordance with a DL reference signal (SS) and a synchronization signal (SS).