公开(公告)号：US11683215B2

公开(公告)日：2023-06-20

申请号：US16820283

申请日：2020-03-16

Applicant: Futurewei Technologies, Inc.

Inventor： Pengfei Xia ,  Bin Liu

IPC: H04L41/0654 ,  H04L5/00 ,  H04B7/08 ,  H04B7/06 ,  H04W16/28 ,  H04W72/04 ,  H04W74/08 ,  H04W72/14 ,  H04W74/00 ,  H04W76/27 ,  H04W88/02 ,  H04W72/0453 ,  H04W72/044

CPC classification number: H04L41/0654 ,  H04B7/0695 ,  H04B7/088 ,  H04L5/0023 ,  H04L5/0048 ,  H04L5/0091 ,  H04W16/28 ,  H04W72/042 ,  H04W72/046 ,  H04W72/0453 ,  H04W72/14 ,  H04W74/006 ,  H04W74/0833 ,  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.

公开(公告)号：US11082176B2

公开(公告)日：2021-08-03

申请号：US15800955

申请日：2017-11-01

Applicant: FutureWei Technologies, Inc.

Inventor： Bin Liu ,  Pengfei Xia

IPC: H04L5/00 ,  H04W72/04 ,  H04B7/06 ,  H04L25/02

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：US10965417B2

公开(公告)日：2021-03-30

申请号：US16563560

申请日：2019-09-06

Applicant: Futurewei Technologies, Inc.

Inventor： Pengfei Xia ,  Bin Liu

IPC: H04L5/00 ,  H04W72/04 ,  H04W76/27

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.

公开(公告)号：US10925062B2

公开(公告)日：2021-02-16

申请号：US15837669

申请日：2017-12-11

Applicant: Futurewei Technologies, Inc.

Inventor： Bin Liu ,  Pengfei Xia

IPC: H04W72/04 ,  H04L5/00 ,  H04W56/00 ,  H04W72/00

Abstract: When spatial quasi co-location is established between component carriers, beam management, e.g., beam configuration or reference signal configuration, of one component carrier may be performed based at least in part on beam management information of the other. Information specifying that component carriers or reference signals cross component carriers are spatially quasi co-located, or information about a SQCL group including spatially quasi co-located carriers, may be transmitted to a UE, e.g., using broadcast signaling, radio resource control (RRC) signaling, a media access control-control element (MAC-CE), downlink control information (DCI) signaling, or a combination thereof.

公开(公告)号：US20210029570A1

公开(公告)日：2021-01-28

申请号：US16988394

申请日：2020-08-07

Applicant: Futurewei Technologies, Inc.

Inventor： Young Hoon Kwon ,  Pengfei Xia ,  Bin Liu

IPC: H04W24/10 ,  H04W16/28

Abstract: A method for reporting beam information includes setting, by a user equipment (UE), a report type of a beam information report, wherein the beam information report includes beam indices of communications beams being reported, a reference beam quality measurement of one of the communications beams reported, and a report type field conveying the report type, and sending, by the UE to an access node, the beam information report.

公开(公告)号：US20210021323A1

公开(公告)日：2021-01-21

申请号：US16993611

申请日：2020-08-14

Applicant: Futurewei Technologies, Inc.

Inventor： Young Hoon Kwon ,  Bin Liu ,  Pengfei Xia

IPC: H04B7/06 ,  H04W72/04 ,  H04W72/08 ,  H04W74/00 ,  H04W74/08

Abstract: The disclosure relates to technology for identifying a user equipment beam index in a base station. The base station indicates one or more resources assigned to the user equipment within a beam failure random access channel (BRACH) resource, and transmits one or more synchronization signal block resources and one or more new beam identification reference signal resources to the user equipment. The base station then receives one of the resources from a group of the one or more resources within the BRACH resource assigned to the user equipment corresponding to the BRACH resource, and identifies a preferred beam index of the user equipment based on information in the BRACH resource and the received one of the resources.

公开(公告)号：US10897287B2

公开(公告)日：2021-01-19

申请号：US15718924

申请日：2017-09-28

Applicant: FutureWei Technologies, Inc.

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

IPC: H04B7/0408 ,  H04B7/0456 ,  H04B7/155 ,  H04L5/00 ,  H04L5/02

Abstract: A method includes inserting a first reference signal and a plurality of bit fields on a first channel, to produce a first signal, where the plurality of bit fields includes a first bit field indicating whether a second reference signal is transmitted on a second channel, a second bit field indicating whether the first reference signal has the same precoding as the second reference signal, a third bit field indicating whether precoding of the first reference signal is similar to precoding of the second reference signal, or a fourth bit field indicating transmission precoding differences between the first reference signal and the second reference signal. The method also includes performing precoding on the first signal, to produce a first transmission signal, performing precoding on the second channel, to produce a second transmission signal, transmitting, to a receiver, the first transmission signal and transmitting, to the receiver, the second transmission signal.

公开(公告)号：US10784948B2

公开(公告)日：2020-09-22

申请号：US16560779

申请日：2019-09-04

Applicant: Futurewei Technologies, Inc.

Inventor： Young Hoon Kwon ,  Bin Liu ,  Pengfei Xia

IPC: H04B7/06 ,  H04W72/08 ,  H04W72/04 ,  H04W74/08 ,  H04W74/00

Abstract: The disclosure relates to technology for identifying a user equipment beam index in a base station. The base station indicates one or more resources assigned to the user equipment within a beam failure random access channel (BRACH) resource, and transmits one or more synchronization signal block resources and one or more new beam identification reference signal resources to the user equipment. The base station then receives one of the resources from a group of the one or more resources within the BRACH resource assigned to the user equipment corresponding to the BRACH resource, and identifies a preferred beam index of the user equipment based on information in the BRACH resource and the received one of the resources.

公开(公告)号：US10555359B2

公开(公告)日：2020-02-04

申请号：US15836444

申请日：2017-12-08

Applicant: Futurewei Technologies, Inc.

Inventor： Pengfei Xia ,  Young Hoon Kwon ,  Bin Liu

IPC: H04W72/04 ,  H04W76/18 ,  H04B7/08 ,  H04B7/06 ,  H04L5/00 ,  H04W74/08 ,  H04W4/08

Abstract: A method for operating a user equipment (UE) includes detecting a failure of a first link between the UE and an access node, and based thereon, detecting a second link between the UE and the access node, sending, to the access node, a beam failure recovery request (BFRQ) on one or more physical random access channel (PRACH) resources associated a third link conveying a reference signal, wherein the third link and the second link are quasi co-located (QCLed), wherein the BFRQ includes a group identifier associated with a UE group including the UE, and monitoring one or more PRACH response opportunities associated with the one or more PRACH resources for a beam failure recovery response (BFRP).

公开(公告)号：US20190394004A1

公开(公告)日：2019-12-26

申请号：US16563560

申请日：2019-09-06

Applicant: Futurewei Technologies, Inc.

Inventor： Pengfei Xia ,  Bin Liu

IPC: H04L5/00 ,  H04W72/04 ,  H04W76/27

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.