公开(公告)号：US11546919B1

公开(公告)日：2023-01-03

申请号：US17527614

申请日：2021-11-16

Applicant: T-Mobile Innovations LLC

Inventor： Roopesh Kumar Polaganga

IPC: H04L1/02 ,  H04W72/08 ,  H04B7/0452 ,  H04B17/318

Abstract: Systems and methods are provided to address issues related to poor radio conditions (e.g., SS-RSRP/SS-RSRQ/SS-SINR) associated with poor coverage for user devices (e.g., user equipment (UEs)) positioned between Synchronization Signal Block (SSB) beams emitted from a cell tower. Specifically, Next Generation Node B (gNB) may identify the location of the user devices (reporting poor signal strength due to poor radio conditions) based on angle or arrival and/or timing advance. Systems and methods further include controlling a phase and amplitude of the SSB beam(s) serving the user device to improve the signal strength of these user devices experiencing poor radio conditions, until the signal strength is within/above target threshold value(s). In this manner, user coverage is improved, with the option to prioritize premium subscribers, without the need for employing a more expensive alternative (e.g., building additional cell sites and towers) for improving user coverage.

公开(公告)号：US11283501B2

公开(公告)日：2022-03-22

申请号：US17257774

申请日：2018-07-07

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Icaro Leonardo Jeronimo Da Silva ,  Igor Moaco Guerreiro ,  Victor Farias Monteiro

IPC: H04L1/02 ,  H04B7/06 ,  H04B7/08 ,  H04L5/00 ,  H04B7/0408

Abstract: An aspect of an embodiment provides a method for controlling channel quality monitoring in a wireless communication system that utilises beamforming, whereby a plurality of signals are transmitted from a base station to a user equipment and the quality of a received signal is measured at the user equipment for each of the plurality of signals, each of the plurality of signals being transmitted by the base station utilising a different frequency sub-band and beam pairing. The method includes: identifying plural frequency sub-band and beam pairings for which the received signal quality is correlated; and, for each frequency sub-band and beam pairing within a group of plural frequency sub-band and beam pairings for which the received signal quality is correlated, evaluating the periodicity of a received signal quality analysis process, and determining whether or not to adjust the periodicity.

公开(公告)号：US11251856B2

公开(公告)日：2022-02-15

申请号：US17228832

申请日：2021-04-13

Applicant: NEC Corporation

Inventor： Jun Shikida ,  Naoto Ishii

IPC: H04B7/10 ,  H04L1/02 ,  H04B7/08

Abstract: A control apparatus includes a determination unit configured to determine first and second reception weight matrixes by using first and second channel matrixes between first and second radio apparatuses and the first and second terminals, a first calculation unit configured to calculate a data channel matrix of a data signal transmitted from the first radio apparatus to the first terminal by using the first channel matrix and the first reception weight matrix, a second calculation unit configured to calculate an interference channel matrix of interference to the second terminal caused by the first radio apparatus by using a third channel matrix between the first radio apparatus and the second terminal and the second reception weight matrix, and a third calculation unit configured to calculate a transmission weight matrix for transmitting a data signal so that the interference is suppressed by using the data channel matrix and the interference channel matrix.

公开(公告)号：US11240836B2

公开(公告)日：2022-02-01

申请号：US16987224

申请日：2020-08-06

Applicant: QUALCOMM Incorporated

Inventor： Mostafa Khoshnevisan ,  Tao Luo ,  Xiaoxia Zhang ,  Arumugam Chendamarai Kannan ,  Sungwoo Park

IPC: H04L1/02 ,  H04W72/12 ,  H04L5/00 ,  H04L5/02

Abstract: Certain aspects of the present disclosure provide techniques for making multi-transmission configuration indicator (TCI) state data scheduling more reliable. A method that may be performed by a user equipment (UE) includes receiving, from a base station (BS), a first signal indicative of a plurality of demodulation reference signal (DMRS) ports. The method may also include receiving, from the BS, a second signal indicative of a first spatial state of a physical channel and a second spatial state of the physical channel. The method may also include communicating data over the second subset and not the first subset, based on which of the plurality of DMRS ports are part of the first subset and which of the plurality of DMRS ports are part of the second subset.

公开(公告)号：US20210367665A1

公开(公告)日：2021-11-25

申请号：US16963237

申请日：2018-02-15

Applicant: Telefonaktiebolaget LM Ericsson (publ)

Inventor： Paolo Debenedetti ,  Raoul Fiorone

IPC: H04B10/032 ,  H04B10/2575 ,  H04J3/14 ,  H04L1/00 ,  H04L1/02 ,  H04L1/08 ,  H04J3/06

Abstract: There is provided a method and device for forwarding a digital signal arranged into portions that each contain a timestamp and an error detection code. Duplicates of the digital signal are received on a first optical path and a second, separate optical path. Corresponding timestamps are identified in the signals and used to synchronize corresponding portions of the signals. The error detection codes in the synchronized portions are used to allow one and only one of the corresponding portions to be selected for forwarding. The selected portions are then forwarded.

公开(公告)号：US11171693B2

公开(公告)日：2021-11-09

申请号：US16666149

申请日：2019-10-28

Applicant: QUALCOMM Incorporated

Inventor： Jay Rodney Walton ,  Lizhong Zheng ,  John W. Ketchum ,  Mark S. Wallace ,  Steven J. Howard

IPC: H04L1/02 ,  H04B7/08 ,  H04B7/0417 ,  H04B7/06 ,  H04L1/06 ,  H04B17/336 ,  H04B7/0456

Abstract: Spatial spreading is performed in a multi-antenna system to randomize an “effective” channel observed by a receiving entity for each transmitted data symbol block. For a MIMO system, at a transmitting entity, data is processed (e.g., encoded, interleaved, and modulated) to obtain ND data symbol blocks to be transmitted in NM transmission spans, where ND≥1 and NM>1. The ND blocks are partitioned into NM data symbol subblocks, one subblock for each transmission span. A steering matrix is selected (e.g., in a deterministic or pseudo-random manner from among a set of L steering matrices, where L>1) for each subblock. Each data symbol subblock is spatially processed with the steering matrix selected for that subblock to obtain transmit symbols, which are further processed and transmitted via NT transmit antennas in one transmission span. The ND data symbol blocks are thus spatially processed with NM steering matrices and observe an ensemble of channels.

公开(公告)号：US11050480B2

公开(公告)日：2021-06-29

申请号：US16339871

申请日：2016-10-06

Applicant: LG ELECTRONICS INC.

Inventor： Kukheon Choi ,  Ilmu Byun ,  Kilborn Lee ,  Kyuseok Kim ,  Minki Ahn

IPC: H04L1/02 ,  H04L7/00 ,  H04B7/06 ,  H04W76/11 ,  H04L5/00 ,  H04W72/02 ,  H04W72/04

Abstract: A method for transmitting, by a terminal, an SRS in a wireless communication system comprises the steps of: receiving, from a base station, control information including SRS resource pool information for tracking a transmission beam of the terminal; and transmitting the SRS to the base station on the basis of the control information, wherein the SRS is an SRS used for tracking the transmission beam of the terminal.

公开(公告)号：US11050445B1

公开(公告)日：2021-06-29

申请号：US16769734

申请日：2018-12-03

Applicant: JRD Communication (Shenzhen) LTD.

Inventor： Yanbo Tang

IPC: H04B7/02 ,  H04L1/02 ,  H04B1/00 ,  H04B1/401 ,  H04B7/0404

Abstract: A mobile terminal and an implementation method for bandwidth extension to the LTE band B42 is provided. The mobile terminal includes: an RF circuit configured to incorporate LTE downlink three-carrier technology in a 1.7 to 2.7 GHz band, a 4*4 multi-mode multi-band antenna, and a 256 QAM encoding scheme; a B42 transmitting path and a receiving path is located on the RF circuit. The B42 transmitting path comprises a B42 RF power amplifier and a B42 power coupler, which are connected to a transmission terminal of a primary antenna on the RF circuit. The receiving path comprises a B42 transceiving filter and a diplexer that are connected to four antennas of the RF circuit.

公开(公告)号：US11038558B2

公开(公告)日：2021-06-15

申请号：US16638119

申请日：2018-08-10

Applicant: Samsung Electronics Co., Ltd

Inventor： Shangbin Wu ,  Yinan Qi

IPC: H04L1/02 ,  H04B7/024 ,  H04B7/06

Abstract: The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A method of controlling a network comprising a transmission/reception point (TRP) 10 and a user equipment (UE) 20 is provided. Channel measurements related to a first antenna port 13A and a second antenna port 13B are performed by the UE 20. A quasi co-location (QCL) of the first antenna port 13A and the second antenna port 13B is determined, based at least in part on the channel measurements. A network configuration is adjusted, based at least in part on the determined QCL.

公开(公告)号：US11018780B2

公开(公告)日：2021-05-25

申请号：US16829367

申请日：2020-03-25

Applicant: Verizon Patent and Licensing Inc.

Inventor： Nicholas D. Butcher

IPC: H04L1/02 ,  H04B17/12 ,  H04B17/13 ,  H04B17/10 ,  H04B17/21 ,  H04B17/26 ,  H04B17/14

Abstract: A network device receives first data associated with a first transmission received at a second antenna from a first antenna and stores the first data as a first antenna profile associated with the second antenna. The network device uses the stored first antenna profile for determining at least one first transmission characteristic associated with a third antenna transmitting to the second antenna.