公开(公告)号：US20200014473A1

公开(公告)日：2020-01-09

申请号：US16571967

申请日：2019-09-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexis Decurninge ,  Maxime Guillaud ,  Xiwen Jiang ,  Florian Kaltenberger

IPC: H04B17/21 ,  H04B17/12 ,  H04B7/0456 ,  H04B7/06 ,  H04B1/38

Abstract: Intra-array pilot measurements are performed with an antenna array of a MIMO transceiver. The antenna array comprises N transceive antennas. The antenna array is partitioned into K groups of antennas, Gk, k=1, . . . , K, wherein K≥2, each group Gk comprising Nk antennas, Aki, i=1, . . . , Nk, of the antenna array. For each k=1, . . . , K, Sk pilot measurements, Mks, s=1, . . . , Sk, are performed, wherein Sk≥1 and wherein each pilot measurement Mks comprises transmitting simultaneously by each antenna Aki, i=1, . . . , Nk, of the group Gk a pilot signal Pkis and generating by each antenna Ak′i′, i′=1, . . . , Nk′, of the other groups, Gk′, k′≠k, a received signal Ykk′i′s by receiving the pilot signals Pkis transmitted by the antennas Aki, i=1, . . . , Nk. The measurements can be performed in a mode for detecting whether current hardware impairment parameters are valid or in a mode for updating the hardware impairment parameters.

公开(公告)号：US10998987B2

公开(公告)日：2021-05-04

申请号：US16571967

申请日：2019-09-16

Applicant: Huawei Technologies Co., Ltd.

Inventor： Alexis Decurninge ,  Maxime Guillaud ,  Xiwen Jiang ,  Florian Kaltenberger

IPC: H04B17/21 ,  H04B17/12 ,  H04B1/38 ,  H04B7/0456 ,  H04B7/06

Abstract: Intra-array pilot measurements are performed with an antenna array of a MIMO transceiver. The antenna array comprises N transceive antennas. The antenna array is partitioned into K groups of antennas, Gk, k=1, . . . , K, wherein K≥2, each group Gk comprising Nk antennas, Aki, i=1, . . . , Nk, of the antenna array. For each k=1, . . . , K, Sk pilot measurements, Mks, s=1, . . . , Sk, are performed, wherein Sk≥1 and wherein each pilot measurement Mks comprises transmitting simultaneously by each antenna Aki, i=1, . . . , Nk, of the group Gk a pilot signal Pkis and generating by each antenna Ak′i′, i′=1, . . . , Nk′, of the other groups, Gk′, k′≠k, a received signal Ykk′i′s by receiving the pilot signals Pkis transmitted by the antennas Aki, i=1, . . . , Nk. The measurements can be performed in a mode for detecting whether current hardware impairment parameters are valid or in a mode for updating the hardware impairment parameters.