公开(公告)号：US12160932B2

公开(公告)日：2024-12-03

申请号：US18312409

申请日：2023-05-04

Applicant: Outdoor Wireless Networks LLC

Inventor： Patrick Braun ,  Christoph Gollinger

IPC: H04L25/02 ,  H04W16/24 ,  H04W88/08

Abstract: One embodiment is directed to a distributed antenna system (DAS) for use with one or more base stations. The DAS comprises a plurality of remote antenna units, one or more donor units, and one or more transport units. The DAS is configured to communicatively couple each donor unit to at least one of the transport units and to communicatively couple each transport unit to at least one of the donor units. The DAS is configured so that all active downlink digital processing for producing the downlink transport signals transmitted from the transport units to the remote antenna units is performed by the donor units and the transport units. The DAS is configured so that all active uplink digital processing of the uplink transport signals received by the transport units from the remote antenna units is performed by the donor units and the transport units.

公开(公告)号：USRE50175E1

公开(公告)日：2024-10-15

申请号：US18138436

申请日：2023-04-24

Applicant: Outdoor Wireless Networks LLC

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

IPC: H04B1/04 ,  H03F1/32 ,  H03F3/189 ,  H03F3/24 ,  H03F3/72 ,  H04B1/00 ,  H04L27/36 ,  H04J3/04

CPC classification number: H03F1/3247 ,  H03F3/189 ,  H03F3/24 ,  H03F3/72 ,  H04B1/0028 ,  H04B1/0475 ,  H04L27/367 ,  H03F2200/111 ,  H03F2203/7209 ,  H04B2001/0425 ,  H04J3/047

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.