-
公开(公告)号：US11057858B1
公开(公告)日：2021-07-06
申请号：US16075685
申请日：2017-01-26
Applicant: SoftBank Corp.
Inventor： Sho Nabatame , Mitsukuni Konishi , Atsushi Nagate , Teruya Fujii
Abstract: A base station, a communication system and a time synchronization method between base stations are provided, which are capable of performing a time synchronization with another base station using a downlink signal of the other base station cell in which the own cell is located, without stopping transmission of the own base station even during operation. A base station receives a downlink signal that includes a downlink signal including a synchronization signal transmitted from the other base station and a downlink wraparound signal transmitted from own base station, removes an interference of the wraparound signal from the downlink received signal, with respect to a predetermined subframe in which the downlink wraparound signal from own base station interferes with the synchronization signal of the base station, among subframes of the downlink signal including the synchronization signal of the base station, performs a time synchronization processing with the base station by detecting a synchronization signal timing of the base station based on the downlink received signal from which the interference of wraparound signal is removed.
-
2.发明公开公开(公告)号：US20240259889A1
公开(公告)日：2024-08-01
申请号：US18018284
申请日：2021-07-28
Applicant: SoftBank Corp.
Inventor： Takuya Nishimaki , Sho Nabatame , Mitsukuni Konishi
CPC classification number: H04W36/0058 , H04W36/0061 , H04W36/0072 , H04W36/304
Abstract: In an overlay cell configuration in which a second cell, a second cell of a same frequency and a third cell of a different frequency are overlapped at least partially with each other, a concentration of communication traffic on the first cell is prevented. It is obtained of a measurement result (MR) including a measurement result of a reception-quality level measured at the same frequency reported by a mobile station connected to a second base station of the same frequency and a cell identifier of a receiving target cell, it is decided whether to change a value of a parameter for determination used for determining a different-frequency-measurement start that is set in the second base station of the same frequency, based on the measured value of the reception-quality level of the signal from the first cell included in the measurement report (MR), when the measurement report (MR) includes the cell identifier of the first cell, and the value of the parameter for determination is changed based on a result of the deciding.
-
公开(公告)号：US20210195542A1
公开(公告)日：2021-06-24
申请号：US16075685
申请日：2017-01-26
Applicant: SoftBank Corp.
Inventor： Sho Nabatame , Mitsukuni Konishi , Atsushi Nagate , Teruya Fujii
Abstract: A base station, a communication system and a time synchronization method between base stations are provided, which are capable of performing a time synchronization with another base station using a downlink signal of the other base station cell in which the own cell is located, without stopping transmission of the own base station even during operation. A base station 20 receives a downlink signal 255 that includes a downlink signal 11 including a synchronization signal transmitted from the other base station 10 and a downlink wraparound signal 22 transmitted from own base station 20, removes an interference of the wraparound signal from the downlink received signal, with respect to a predetermined subframe in which the downlink wraparound signal from own base station 20 interferes with the synchronization signal of the base station 10, among subframes of the downlink signal including the synchronization signal of the base station 10, performs a time synchronization processing with the base station 10 by detecting a synchronization signal timing of the base station 10 based on the downlink received signal from which the interference of wraparound signal is removed.
-
-
Search Results
3
records
(took 0.02 seconds)
