公开(公告)号：US20230050488A1

公开(公告)日：2023-02-16

申请号：US17978411

申请日：2022-11-01

申请人： AT&T Intellectual Property I, L.P.

发明人： Ernest Tsui ,  Paul Maxwell ,  Brian Gavin

IPC分类号： H04L25/02 ,  H04B7/06 ,  H04B17/318 ,  H04W24/08 ,  H04L5/14 ,  H04W72/12 ,  H04B7/0417 ,  H01Q3/26 ,  H04L43/0888 ,  H04B17/12 ,  H04B7/08 ,  H04B7/0452 ,  H04B7/0456 ,  H04W72/04 ,  H04L5/00 ,  H04W24/02 ,  H04W16/28 ,  H04W84/04 ,  G06N20/00 ,  H04B7/0426 ,  H04B17/336 ,  H04W72/08 ,  H04B17/309 ,  H04W52/14 ,  H04W52/26 ,  H04L43/16 ,  H04J11/00

摘要： Aspects of the subject disclosure may include, for example, causing a reference antenna element of a first set of antenna elements of a first antenna array to transmit a first signal, determining for each antenna element of a second set of antenna elements of a second antenna array, a receive-related offset, relative to the reference element, based on inter-element propagation delays between the first and second sets of elements, causing each antenna element of the second set of elements to transmit a respective second signal, based on the reference antenna element receiving the respective second signals, calculating a respective transmit-related offset for each antenna element of the second set of antenna elements relative to the reference antenna element based on the inter-element propagation delays, and performing calibration between the first antenna array and the second antenna array based on the respective receive-related and transmit-related offsets. Other embodiments are disclosed.

公开(公告)号：US11509435B2

公开(公告)日：2022-11-22

申请号：US16944725

申请日：2020-07-31

申请人： AT&T Intellectual Property I, L.P.

发明人： Ernest Tsui ,  Brian Gavin ,  Paul Maxwell ,  Weihua Ye

IPC分类号： H04W4/00 ,  H04L5/00 ,  H04B1/10 ,  H04W72/04 ,  H04L27/26

摘要： A system includes a base band unit pooling component that determines, via a base band unit pool of base station devices, respective uplink channel estimates of an uplink channel wirelessly coupling, using frequency division duplexing via respective modular antenna elements, a user equipment to the base band unit pool. A downlink channel estimation component of the system derives, based on the respective uplink channel estimates, a downlink channel estimate of a downlink channel wirelessly coupling, using the frequency division duplexing via a portion of the respective modular antenna elements corresponding to a base station device of the base band unit pool, the base station device to the user equipment. In turn, the system generates, using the downlink channel estimate, a group of downlink sector beams to be transmitted to the user equipment using the downlink channel via the portion of the respective modular antenna elements.

公开(公告)号：US12120052B2

公开(公告)日：2024-10-15

申请号：US17971480

申请日：2022-10-21

申请人： AT&T Intellectual Property I, L.P.

发明人： Ernest Tsui ,  Brian Gavin ,  Paul Maxwell ,  Weihua Ye

IPC分类号： H04W72/04 ,  H04B1/10 ,  H04L5/00 ,  H04L27/26 ,  H04W72/21 ,  H04W72/23 ,  H04W76/00 ,  H04W88/08

CPC分类号： H04L5/0048 ,  H04B1/1027 ,  H04L5/0023 ,  H04L27/2613 ,  H04W72/21 ,  H04W72/23

摘要： A system includes a base band unit pooling component that determines, via a base band unit pool of base station devices, respective uplink channel estimates of an uplink channel wirelessly coupling, using frequency division duplexing via respective modular antenna elements, a user equipment to the base band unit pool. A downlink channel estimation component of the system derives, based on the respective uplink channel estimates, a downlink channel estimate of a downlink channel wirelessly coupling, using the frequency division duplexing via a portion of the respective modular antenna elements corresponding to a base station device of the base band unit pool, the base station device to the user equipment. In turn, the system generates, using the downlink channel estimate, a group of downlink sector beams to be transmitted to the user equipment using the downlink channel via the portion of the respective modular antenna elements.

公开(公告)号：US20230044755A1

公开(公告)日：2023-02-09

申请号：US17971480

申请日：2022-10-21

申请人： AT&T Intellectual Property I, L.P.

发明人： Ernest Tsui ,  Brian Gavin ,  Paul Maxwell ,  Weihua Ye

IPC分类号： H04L5/00 ,  H04B1/10 ,  H04W72/04 ,  H04L27/26

摘要： A system includes a base band unit pooling component that determines, via a base band unit pool of base station devices, respective uplink channel estimates of an uplink channel wirelessly coupling, using frequency division duplexing via respective modular antenna elements, a user equipment to the base band unit pool. A downlink channel estimation component of the system derives, based on the respective uplink channel estimates, a downlink channel estimate of a downlink channel wirelessly coupling, using the frequency division duplexing via a portion of the respective modular antenna elements corresponding to a base station device of the base band unit pool, the base station device to the user equipment. In turn, the system generates, using the downlink channel estimate, a group of downlink sector beams to be transmitted to the user equipment using the downlink channel via the portion of the respective modular antenna elements.

公开(公告)号：US11532882B2

公开(公告)日：2022-12-20

申请号：US17376793

申请日：2021-07-15

申请人： AT&T Intellectual Property I, L.P.

发明人： Ernest Tsui ,  Paul Maxwell ,  Brian Gavin

IPC分类号： H04B1/00 ,  H01Q3/26 ,  H04B7/0452 ,  H04B17/12

摘要： Aspects of the subject disclosure may include, for example, causing a reference antenna element of a first set of antenna elements of a first antenna array to transmit a first signal, determining for each antenna element of a second set of antenna elements of a second antenna array, a receive-related offset, relative to the reference element, based on inter-element propagation delays between the first and second sets of elements, causing each antenna element of the second set of elements to transmit a respective second signal, based on the reference antenna element receiving the respective second signals, calculating a respective transmit-related offset for each antenna element of the second set of antenna elements relative to the reference antenna element based on the inter-element propagation delays, and performing calibration between the first antenna array and the second antenna array based on the respective receive-related and transmit-related offsets. Other embodiments are disclosed.

公开(公告)号：US20220278448A1

公开(公告)日：2022-09-01

申请号：US17376793

申请日：2021-07-15

申请人： AT&T Intellectual Property I, L.P.

发明人： Ernest Tsui ,  Paul Maxwell ,  Brian Gavin

IPC分类号： H01Q3/26 ,  H04B17/12 ,  H04B7/0452

摘要： Aspects of the subject disclosure may include, for example, causing a reference antenna element of a first set of antenna elements of a first antenna array to transmit a first signal, determining for each antenna element of a second set of antenna elements of a second antenna array, a receive-related offset, relative to the reference element, based on inter-element propagation delays between the first and second sets of elements, causing each antenna element of the second set of elements to transmit a respective second signal, based on the reference antenna element receiving the respective second signals, calculating a respective transmit-related offset for each antenna element of the second set of antenna elements relative to the reference antenna element based on the inter-element propagation delays, and performing calibration between the first antenna array and the second antenna array based on the respective receive-related and transmit-related offsets. Other embodiments are disclosed.

公开(公告)号：US20220038230A1

公开(公告)日：2022-02-03

申请号：US16944725

申请日：2020-07-31

申请人： AT&T Intellectual Property I, L.P.

发明人： Ernest Tsui ,  Brian Gavin ,  Paul Maxwell ,  Weihua Ye

IPC分类号： H04L5/00 ,  H04W72/04 ,  H04L27/26 ,  H04B1/10

摘要： A system includes a base band unit pooling component that determines, via a base band unit pool of base station devices, respective uplink channel estimates of an uplink channel wirelessly coupling, using frequency division duplexing via respective modular antenna elements, a user equipment to the base band unit pool. A downlink channel estimation component of the system derives, based on the respective uplink channel estimates, a downlink channel estimate of a downlink channel wirelessly coupling, using the frequency division duplexing via a portion of the respective modular antenna elements corresponding to a base station device of the base band unit pool, the base station device to the user equipment. In turn, the system generates, using the downlink channel estimate, a group of downlink sector beams to be transmitted to the user equipment using the downlink channel via the portion of the respective modular antenna elements.