公开(公告)号：US11206713B2

公开(公告)日：2021-12-21

申请号：US16728989

申请日：2019-12-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Inaki Estella Aguerri ,  Meryem Benammar ,  Abdellatif Zaidi

IPC: H04W4/00 ,  H04W88/08 ,  H04B7/0456 ,  H04B7/06 ,  H04W72/04 ,  H03M7/40 ,  H04B7/0413

Abstract: A multi-antenna receiver within an uplink MIMO communication system is described. The antenna receiver includes an RRU and a BBU communicating between themselves through a fronthaul (FH) link. The multi-antenna receiver significantly decreases the fronthaul (FH) throughput requirements, while guaranteeing a low EVM between the time-domain signals transmitted from the users towards the RRU and the signals reconstructed and recovered at the BBU. The RRU processes the obtained frequency-domain signals in a space of dimensionality N by projecting them into a signal space of lower dimensionality (N′) and compressing them in the obtained projected signal subspace. At the BBU, the frequency-domain signals are decompressed and reconstructed on the projected signal subspace, before recovering the transmitted time-domain signals.

公开(公告)号：US11096088B2

公开(公告)日：2021-08-17

申请号：US16413489

申请日：2019-05-15

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Inaki Estella Aguerri ,  Meryem Benammar ,  Abdellatif Zaidi

IPC: H04W28/06 ,  H04B7/0456 ,  H04B7/06 ,  H04B7/024

Abstract: The present disclosure relates to reception of radio frequency (RF) signals from one or more user communication devices at N RF signal receiving devices, wherein N is a positive integer, and to processing of the received RF signals by the one or more RF signal receiving devices. A RF signal receiving device decompresses compressed output signals received from one or more RF signal receiving devices of the N RF signal receiving devices and generates a compressed output signal by executing a signal compression with regard to the decompressed signals and with regard to a RF signal received by the RF signal receiving device. Additionally, the present disclosure is directed to a further processing of output signals of a RF signal receiving device of the N RF signal receiving devices at a signal processing device.