公开(公告)号：US20240204838A1

公开(公告)日：2024-06-20

申请号：US18515666

申请日：2023-11-21

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Muhammad Ayyaz QURESHI ,  Tilman FELGENTREFF ,  Martin STEIERT ,  Suresh KALYANASUNDARAM ,  Shalini GULATI

IPC: H04B7/06 ,  H04B7/0408 ,  H04B7/08

CPC classification number: H04B7/0617 ,  H04B7/0408 ,  H04B7/0877

Abstract: A method and apparatus determine a transmission beam for downlink transmissions, and provides first beamforming instructions for forming the transmission beam to a transmission path. The method and apparatus also determine at least one receiving beam that is a first receiving beam, and at least one receiving beam that is a second receiving beam. A first antenna sub-array is configured to provide a first plurality of concurrent receiving beams and a second antenna sub-array is configured to provide a second plurality of concurrent receiving beams, providing second beamforming instructions, for forming at least the first receiving beam and at least the second receiving beams, to a first receiving path and a second receiving path, respectively.

公开(公告)号：US20230284199A1

公开(公告)日：2023-09-07

申请号：US18118373

申请日：2023-03-07

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Muhammad Ayyaz QURESHI ,  Martin STEIERT ,  Tilman FELGENTREFF ,  Suresh KALYANASUNDARAM ,  Jinesh P. NAIR ,  Shalini GULATI

IPC: H04W72/044 ,  H04W72/52

CPC classification number: H04W72/046 ,  H04W72/52 ,  H04W16/28

Abstract: A method comprises selecting a beam to be scheduled for a slot that is upcoming, and selecting a terminal device to be scheduled in the selected beam. Selection of the terminal device is based on the terminal device considering the selected beam as its best beam. Physical resource blocks are allocated to the terminal device, and a beam configuration to be used for the selected beam is chosen based in part on user traffic and load distribution. A switching event is triggered. The switching event comprises producing the chosen beam configuration by providing a beamforming command and using a control line controlling a switch network comprised in phase shifters to steer the beam. The phase shifters are comprised in a radio frequency front-end unit comprising a plurality of antenna columns. The phase shifters are placed in front of selected antenna sub-arrays comprised in the plurality of antenna columns.

公开(公告)号：US20150145602A1

公开(公告)日：2015-05-28

申请号：US14553144

申请日：2014-11-25

Applicant: Nokia Solutions and Networks Oy

Inventor： Tilman FELGENTREFF ,  Christian MUSOLFF ,  Georg FISCHER

IPC: H03F1/02 ,  H03F3/21 ,  H04W88/08 ,  H03F3/193

CPC classification number: H03F1/0288 ,  H03F1/02 ,  H03F1/42 ,  H03F1/56 ,  H03F3/193 ,  H03F3/195 ,  H03F3/211 ,  H03F3/24 ,  H03F3/245 ,  H03F2200/255 ,  H03F2200/36 ,  H03F2200/387 ,  H03F2200/451 ,  H03F2200/541 ,  H03F2203/21106 ,  H04B2001/045 ,  H04W88/08

Abstract: An apparatus includes a main amplifier core and auxiliary amplifier core(s), an input signal splitter connected to inputs of the main amplifier core and the auxiliary amplifier core(s), and an output combiner connected to outputs of the main amplifier core and an the auxiliary amplifier core(s). The input signal splitter is configured to split an input signal into a first signal for the main amplifier core and at second signal(s) for the auxiliary amplifier core(s) according to frequency dependent nonlinear input drive functions. The output combiner is configured to combine output signals of the main amplifier core and the auxiliary amplifier core(s), and to provide a continuum of optimum termination impedances of the main amplifier core for the fundamental frequency and at least one harmonic frequency over a predetermined bandwidth of operation, in a low power region. The low power region is defined by the auxiliary amplifier core(s) being inactive.

Abstract translation: 一种装置包括主放大器核心和辅助放大器核心，连接到主放大器核心和辅助放大器核心的输入端的输入信号分离器，以及连接到主放大器核心的输出端的输出组合器和 辅助放大器核心。 输入信号分配器被配置为根据频率相关的非线性输入驱动功能，将输入信号分离成用于主放大器核心的第一信号和用于辅助放大器核心的第二信号。 输出组合器被配置为组合主放大器核心和辅助放大器核心的输出信号，并且为基本频率提供主放大器核心的最佳终端阻抗的连续性，并且在预定的频率上提供至少一个谐波频率 在低功率区域的运行带宽。 低功率区域由辅助放大器核心无效定义。