公开(公告)号：US11101854B2

公开(公告)日：2021-08-24

申请号：US17029715

申请日：2020-09-23

Applicant: Apple Inc.

Inventor： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Seigo Nakao ,  Daichi Imamura

IPC: H04B7/0456 ,  H04L25/03 ,  H04B7/06 ,  H04B7/024 ,  H04B1/3827 ,  H04W88/02 ,  H04W88/08

Abstract: The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which contains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal.

公开(公告)号：US20230084236A1

公开(公告)日：2023-03-16

申请号：US17983251

申请日：2022-11-08

Applicant: Apple Inc.

Inventor： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Seigo Nakao ,  Daichi Imamura

IPC: H04B7/0456 ,  H04L25/03 ,  H04B7/06 ,  H04B7/024

Abstract: The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which contains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal.

公开(公告)号：US20210384947A1

公开(公告)日：2021-12-09

申请号：US17404869

申请日：2021-08-17

Applicant: Apple Inc.

Inventor： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Seigo Nakao ,  Daichi Imamura

IPC: H04B7/0456 ,  H04L25/03 ,  H04B7/06 ,  H04B7/024

Abstract: The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which contains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal.

公开(公告)号：US11757501B2

公开(公告)日：2023-09-12

申请号：US17983251

申请日：2022-11-08

Applicant: Apple Inc.

Inventor： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Seigo Nakao ,  Daichi Imamura

IPC: H04B7/0456 ,  H04L25/03 ,  H04B7/06 ,  H04B7/024 ,  H04B1/3827 ,  H04W88/02 ,  H04W88/08

CPC classification number: H04B7/0478 ,  H04B7/024 ,  H04B7/0456 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0641 ,  H04B7/0663 ,  H04L25/03904 ,  H04L25/03917 ,  H04B7/0469 ,  H04B2001/3855 ,  H04B2001/3861 ,  H04W88/02 ,  H04W88/08

Abstract: The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which contains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal.

公开(公告)号：US11528065B2

公开(公告)日：2022-12-13

申请号：US17404869

申请日：2021-08-17

Applicant: Apple Inc.

Inventor： Hui Tong ,  Masayuki Hoshino ,  Ming Xu ,  Seigo Nakao ,  Daichi Imamura

IPC: H04B7/0456 ,  H04L25/03 ,  H04B7/06 ,  H04B7/024 ,  H04B1/3827 ,  H04W88/02 ,  H04W88/08

Abstract: The present disclosure provides a method of generating codebook in a wireless communication system with multiple antenna arrays, as well as a wireless communication system, base station and terminal using the codebook for communication. The method comprises steps of: providing a basic codebook which contains multiple pre-coding matrices; and assigning phase offsets to certain pre-coding matrices in the basic codebook to form a codebook with phase offset. The feedback overhead from a client to a base station side is reduced and a good precision of feedback for multi-antenna array is kept by applying the method of generating codebook and using the generated codebook in the wireless communication system, base station and terminal.