公开(公告)号：US11128992B2

公开(公告)日：2021-09-21

申请号：US16581760

申请日：2019-09-25

Applicant: Sony Corporation

Inventor： Qimei Cui ,  Tong Zhang ,  Zhongbin Qin ,  Weijuan Gao ,  Hui Liang ,  Qinyan Jiang

IPC: H04W4/08 ,  H04B7/06 ,  H04W16/18 ,  H04W16/28

Abstract: A communications apparatus, a base station, and a communications method. The communications apparatus includes processing circuitry configured to: group users in a 3D beam-forming space of a current cell into multiple space user groups; determine group configuration information of the users in the 3D beam-forming space of the current cell; notify a neighbor cell of the group configuration information of the users in the 3D beam-forming space of the current cell to assist inter-cell interference coordination, wherein the current cell is configured with an antenna array having multiple physical antennas to achieve 3D beam-forming.

公开(公告)号：US10798586B2

公开(公告)日：2020-10-06

申请号：US16379814

申请日：2019-04-10

Applicant: Sony Corporation

Inventor： Qimei Cui ,  Xiaodong Xu ,  Jiahui Liu ,  Ningyu Chen ,  Xiang Zhou ,  Yu Sun

IPC: H04W16/14 ,  H04W74/08 ,  H04W74/00

Abstract: A base station side device and method and user side device and method for wireless communication. The device includes: a sending unit configured to send instruction on an unauthorized frequency band detection to a user equipment (UE) served by the cell where the device is located; a receiving unit configured to receive from the UE a signal representing occupancy status of the unauthorized frequency band; and a determination unit configured to determine based on the signal received by the receiving unit whether to use the unauthorized frequency band for communication, the unauthorized frequency band occupancy status includes occupied/idle status and the type of the occupying system, and the type of occupying system includes one of an unauthorized communication system and an authorized communication system.

公开(公告)号：US10674492B2

公开(公告)日：2020-06-02

申请号：US16293644

申请日：2019-03-06

Applicant: Sony Corporation

Inventor： Qimei Cui ,  Ningyu Chen ,  Jiahui Liu ,  Yingni Zhang ,  Liang Zeng ,  Zhongbin Qin

IPC: H04W72/04 ,  H04W52/02 ,  H04W72/10 ,  H04W76/27 ,  H04W72/08

Abstract: A device and method controlling working state change of a small cell and a base station including the device. The device includes: an information acquiring unit that acquires interference between a small cell to be controlled and an adjacent small cell and/or load of the small cell to be controlled; and a state change determination unit that determines working state change to be performed by the small cell to be controlled according to the acquired interference and/or load. The working state includes multiple sleep levels from low to high. A sleep degree of the small cell to be controlled in a low sleep level is less than a sleep degree of the small cell to be controlled in a high sleep level, the working state change being performed among multiple sleep levels.

公开(公告)号：US10567122B2

公开(公告)日：2020-02-18

申请号：US16368851

申请日：2019-03-28

Applicant: Sony Corporation

Inventor： Qimei Cui ,  Mingliang Tao ,  Ting Fu

IPC: H04L1/18 ,  H04W72/12 ,  H04B7/26 ,  H04L5/00 ,  H04W72/04

Abstract: A method, base station, and terminal for dynamic uplink configuration in a wireless communication system, the method including: determining reconfiguration information including a reconfiguration point of time, to employ first uplink and downlink subframe configuration in the first configuration period before the reconfiguration point of time, and to employ second uplink and downlink subframe configuration in a second configuration period after the reconfiguration point of time; and in the last transmission period before the reconfiguration point of time, employing an uplink scheduling timing sequence of a reference uplink and downlink subframe configuration according to an uplink data timing sequence, the reference uplink and downlink subframe configuration including the second uplink and downlink subframe configuration. The method, base station, and terminal efficiently achieve at least one of: ensuring resource utilization, addressing timing sequence conflicts, coordinating processes, ensuring user throughput, or reducing transmission delay during TDD uplink and downlink reconfiguration.

公开(公告)号：US20190357218A1

公开(公告)日：2019-11-21

申请号：US16525610

申请日：2019-07-30

Applicant: Sony Corporation

Inventor： Yanzhao Hou ,  Qimei Cui ,  Shiwei Cao ,  Hui Liang ,  Qinyan Jiang ,  Shiyu Zhang ,  Xin Guo ,  Chen Sun

IPC: H04W72/04 ,  H04W4/40 ,  H04W4/90 ,  H04W72/10 ,  H04W52/28 ,  H04W4/70

Abstract: The present disclosure relates to a wireless communication device and a wireless communication method. The wireless communication device according to one embodiment comprises one or more processors, wherein the processor(s) is/are configured to acquire the type of information to be transmitted via device-to-device communication, wherein the type is one of a plurality of types at least including a first type and a second type; and the processor(s) is/are also configured to determine a resource use manner and a power control manner which are used for transmitting information at least according to the type of the information.

公开(公告)号：US10455427B2

公开(公告)日：2019-10-22

申请号：US15572565

申请日：2016-04-13

Applicant: SONY CORPORATION

Inventor： Qimei Cui ,  Jiahui Liu ,  Xiang Zhou ,  Xiaofeng Tao

IPC: H04W28/02 ,  H04W16/10 ,  H04W16/14 ,  H04W24/10 ,  H04W28/08 ,  H04W28/26 ,  H04W72/04 ,  H04W74/08 ,  H04W84/04

Abstract: A frequency allocation method and device for an unauthorized frequency band. The method includes: a controller acquires a business load status of plural macro base stations having similar coverage ranges and operated by different operators, and generates, based on the business load status, allocation information about an unauthorized frequency band, to mutually exclusively allocate the unauthorized frequency band to plural macro base stations; the macro base stations receive the allocation information about the unauthorized frequency band, to determine the unauthorized frequency band monopolized by the macro base stations from an unauthorized frequency band resource, and generate indicative information about the monopolized unauthorized frequency band; and a small base station receives the indicative information, detects state of the unauthorized frequency band monopolized by the macro base stations, and dynamically accesses, according to a detecting result, a specific unauthorized frequency baud in the unauthorized frequency band monopolized by the macro base stations.

公开(公告)号：US10420111B2

公开(公告)日：2019-09-17

申请号：US15742212

申请日：2016-07-05

Applicant: SONY CORPORATION

Inventor： Yanzhao Hou ,  Qimei Cui ,  Shiwei Cao ,  Hui Liang ,  Qinyan Jiang ,  Shiyu Zhang ,  Xin Guo ,  Chen Sun

IPC: H04W72/04 ,  H04W4/70 ,  H04W72/10 ,  H04W52/28 ,  H04W4/90 ,  H04W4/40 ,  H04W4/46

Abstract: The present disclosure relates to a wireless communication device and a wireless communication method. The wireless communication device according to one embodiment comprises one or more processors, wherein the processor(s) is/are configured to acquire the type of information to be transmitted via device-to-device communication, wherein the type is one of a plurality of types at least including a first type and a second type; and the processor(s) is/are also configured to determine a resource use manner and a power control manner which are used for transmitting information at least according to the type of the information.

公开(公告)号：US20190222269A1

公开(公告)日：2019-07-18

申请号：US16362707

申请日：2019-03-25

Applicant: Sony Corporation

Inventor： Qimei Cui ,  Shiyuan Li ,  Xiaofeng Tao ,  Chao Wang

IPC: H04B7/0417 ,  H04B7/06 ,  H04L1/20 ,  H04B7/0452 ,  H04L1/00

CPC classification number: H04B7/0417 ,  H04B7/0452 ,  H04B7/0632 ,  H04B7/0634 ,  H04B7/0639 ,  H04B7/0689 ,  H04L1/0026 ,  H04L1/20

Abstract: A method and device for feeding back downlink channel feedback information, and a method and device for user pairing. The method for feeding back downlink channel feedback information includes: calculating the multi-user channel quality indication error of a user, which error is used to reflect the difference in channel quality indication between the situation of multi-user multiple input multiple output transmission and the situation of single user multiple input multiple output transmission; adding the multi-user channel quality indication error into the downlink channel feedback information which includes a pre-coding matrix indication and a channel quality indication, and feeding the same back to a base station for scheduling. Therefore, the bit error rate of demodulation in the MIMO system can be reduced and the system performance can be improved.

公开(公告)号：US09999012B2

公开(公告)日：2018-06-12

申请号：US14693053

申请日：2015-04-22

Applicant: Sony Corporation

Inventor： Xiaodong Xu ,  Qimei Cui ,  Yu Sun ,  Ningyu Chen ,  Rui Gao ,  Jiahui Liu

IPC: H04W56/00 ,  H04L5/14

CPC classification number: H04W56/002 ,  H04L5/1469 ,  H04W56/0015

Abstract: There is provided a method and device in a wireless communication system, the method comprising: a cell information interacting step of interacting information about a first cell and a second cell having interference with each other between the first cell and the second cell to determine a source cell and a target cell among the first cell and the second cell, wherein the target cell performs synchronization with the source cell being a synchronization source; an initial synchronizing step of performing initial frame-level synchronization by the target cell with the source cell being the synchronization source; a synchronization information interacting step of interacting information about a synchronization subframe position between the source cell and the target cell to determine a synchronization subframe position configurable for both the source cell and the target cell; and a symbol-level synchronizing step of performing symbol-level synchronization between the source cell and the target cell according to the determined synchronization subframe position. According to the disclosure, it is possible to realize synchronization among cells belonging to different operators and/or adopting different synchronizing manners.

公开(公告)号：US09948360B2

公开(公告)日：2018-04-17

申请号：US14431356

申请日：2013-07-08

Applicant: SONY CORPORATION

Inventor： Qimei Cui ,  Hui Wang

IPC: H04W4/00 ,  H04L1/00 ,  H04B7/06 ,  H04B7/024

CPC classification number: H04B7/024 ,  H04B7/0626 ,  H04L1/0026 ,  H04L1/0027

Abstract: Disclosed are a base station, a wireless communication terminal, a wireless communication system, and a wireless communication method. The base station can be used in coordinated multi-point transmission and comprises: a channel quality obtaining unit for obtaining uplink channel quality between a user equipment and a coordinated base station; a channel quality determination unit for comparing the obtained uplink channel quality with a quality threshold to determine whether the uplink channel quality is good or bad; a feedback control unit for determining, according to a determination result, whether to allow the user equipment to feed back channel state information to the corresponding coordinated base station; and a sending unit for sending information, about how to feed back the channel status information, to the user equipment. When the determination result is that the uplink channel quality is better than channel quality represented by the quality threshold, the feedback control unit determines to allow the user equipment to feed back the channel status information to the corresponding coordinated base station; when the determination result is that the uplink channel quality is poorer than the channel quality represented by the quality threshold, the feedback control unit determines not to allow the user equipment to feed back the channel status information to the corresponding coordinated base station.