公开(公告)号：US20220345193A1

公开(公告)日：2022-10-27

申请号：US17724328

申请日：2022-04-19

Applicant: CommScope Technologies LLC

Inventor： Gerhard Braun ,  Gerald Steidle ,  Josef Mayer ,  Patrick Braun ,  Daniel Schwab ,  Peter Gunzner ,  Thomas Rauwolf ,  Rainer Friedrich

IPC: H04B7/06 ,  H04B7/0413 ,  H04L1/00 ,  H04L5/14

Abstract: In one embodiment, a RF signal repeater switchable between SISO and MIMO comprises: a controller; a first transmitter path switchably coupled to first donor and coverage antennas; a second transmitter path switchably coupled to second donor and coverage antennas; a first receiver path switchably coupled to the first donor and coverage antennas; a second receiver path switchably coupled to the second donor and coverage antennas. The controller configures the repeater for a MIMO TDD operating mode by: configuring the first transmitter path and the second receiver path to repeat at least a first MIMO channel of UE uplink RF signals and at least a first MIMO channel of base station downlink RF signals; and configuring the second transmitter path and the first receiver path to repeat at least a second MIMO channel of UE uplink RF signals and at least a second MIMO channel of base station downlink RF signals.

公开(公告)号：US20190052234A1

公开(公告)日：2019-02-14

申请号：US16050740

申请日：2018-07-31

Applicant: CommScope Technologies LLC

Inventor： Patrick Braun ,  Joerg Stefanik ,  Mohammed Dokni ,  Peter Schmid ,  Rainer Friedrich

IPC: H03F1/32 ,  H04B1/00 ,  H04L27/36 ,  H04B1/04

Abstract: A method is provided. The method, comprises: power amplifying, with at least two parallel power amplifiers, at least two pre-distorted signals each corresponding to a unique transmit band, wherein each power amplifier operates in a unique transmit band; and pre-distorting, with a single pre-distortion system, at least two signals in different transmit bands, where the pre-distortion of each of the at least two signals is based upon a portion of a corresponding power amplified, pre-distorted signal, and where the pre-distortion diminishes certain IMD products in the corresponding power amplified, pre-distorted signal.