公开(公告)号：US11646768B2

公开(公告)日：2023-05-09

申请号：US17711249

申请日：2022-04-01

Applicant: HON LIN TECHNOLOGY CO., LTD.

Inventor： Tzu-Yu Lin ,  Shang-Ho Tsai ,  Yu-Heng You ,  Hsin-Hung Chou ,  Wei-Han Hsiao

IPC: H04B7/024 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02

CPC classification number: H04B7/024 ,  H04B7/0626 ,  H04B7/0632 ,  H04L5/0035 ,  H04L25/0206

Abstract: A method for downlink transmission in a cloud radio access network for a number of users is applied in a central unit. The central unit determines a specific number of remote radio heads (RRHs) as non-serving RRHs based on a predetermined data compression ratio. For each of many pieces of user equipment (UEs), the central unit determines a combination of RRHs which are non-serving in coordinated multi-point transmission (CoMP) from a plurality of RRHs based on the determined specific number, and then performs CoMP downlink transmission based on the combination of RRHs which are non-serving in the CoMP.

公开(公告)号：US11522585B2

公开(公告)日：2022-12-06

申请号：US17519254

申请日：2021-11-04

Applicant: HON LIN TECHNOLOGY CO., LTD.

Inventor： Xiang-Quan Ser ,  Chi-Chen Wang ,  Shang-Ho Tsai ,  Hsin-Hung Chou ,  Wei-Han Hsiao

IPC: G06F11/22 ,  H04B7/0456 ,  H04W72/04 ,  H04L25/49

Abstract: A method and a system for processing uplink signals in cloud radio access networks are disclosed The system comprising a baseband unit and a number of remote radio heads. The baseband unit and the remote radio heads are connected through fronthaul links. When one remote radio head receives a signal transmitted from a user equipment, the remote radio head first encodes the received signal according to a post-coding matrix, then quantizes the encoded signal according to a number of quantization bits allocated to the user equipment, and finally transmits the quantized signal to the baseband unit.

公开(公告)号：US11329700B2

公开(公告)日：2022-05-10

申请号：US17032339

申请日：2020-09-25

Applicant: HON LIN TECHNOLOGY CO., LTD.

Inventor： Tzu-Yu Lin ,  Shang-Ho Tsai ,  Yu-Heng You ,  Hsin-Hung Chou ,  Wei-Han Hsiao

IPC: H04W4/00 ,  H04B7/024 ,  H04B7/06 ,  H04L5/00 ,  H04L25/02

Abstract: A method for downlink transmission in a cloud radio access network for a number of users is applied in a central unit. The central unit determines a specific number of remote radio heads (RRHs) as non-serving RRHs based on a predetermined data compression ratio. For each of many pieces of user equipment (UEs), the central unit determines a combination of RRHs which are non-serving in coordinated multi-point transmission (CoMP) from a plurality of RRHs based on the determined specific number, and then performs CoMP downlink transmission based on the combination of RRHs which are non-serving in the CoMP.