公开(公告)号：US20200337035A1

公开(公告)日：2020-10-22

申请号：US16921265

申请日：2020-07-06

Applicant: NEC Corporation

Inventor： Yassin Aden AWAD ,  Robert ARNOTT

IPC: H04W72/04 ,  H04L5/00 ,  H04W4/70

Abstract: A communications system is described that has a base station and a number of user devices, including legacy user devices and non-legacy user devices. The base station generates control data for transmission to the user devices, the control data including common control data for reception and decoding by a plurality of user devices and user specific control data for reception and decoding by a specific user device. The common control data is for reception and decoding by the non-legacy user devices and cannot be decoded by the legacy user devices. The common control data is repeated within multiple subframes for reception and decoding by non-legacy user devices. The non-legacy user devices are typically Machine Type Communications (MTC) user devices.

公开(公告)号：US20190182683A1

公开(公告)日：2019-06-13

申请号：US16324761

申请日：2017-08-10

Applicant: NEC CORPORATION

Inventor： Chadi KHIRALLAH ,  Yassin Aden AWAD ,  Neeraj GUPTA ,  Robert ARNOTT

IPC: H04W16/28 ,  H04B7/06 ,  H04W24/08

Abstract: A communication system is disclosed in which a base station serves a communication area, wherein the communication area is formed by a plurality of directional beams each covering a respective portion of the communication area and each having a different respective beam identifier. The base station communicates control information, for a communication device (UE), using at least one directional beam associated with that communication device (e.g. a UE-specific operational beam set).

公开(公告)号：US20180175923A1

公开(公告)日：2018-06-21

申请号：US15735348

申请日：2016-06-07

Applicant: NEC Corporation

Inventor： Caroline LIANG ,  Robert ARNOTT

IPC: H04B7/06 ,  H04W24/10 ,  H04L1/00

CPC classification number: H04B7/0626 ,  H04B7/024 ,  H04L1/0026 ,  H04L5/0035 ,  H04W24/10

Abstract: A communication system is disclosed in which coordinated multi-point transmissions for a mobile device are carried out in two stages. In the first stage, a central controller obtains Channel State Information (CSI) reports from multiple transmission points, based on which the controller estimates respective data rates for transmissions between each transmission point and the mobile device. The controller determines an active set of transmission points to be associated with the mobile device, and informs the transmission points about the association made. In the second stage, the transmission points included in the active set carry out scheduling for the mobile device independently from each other until the controller updates the active set of transmission points.

公开(公告)号：US20160029355A1

公开(公告)日：2016-01-28

申请号：US14875797

申请日：2015-10-06

Applicant: NEC Corporation

Inventor： Jagdeep Singh AHLUWALIA ,  Robert ARNOTT

IPC: H04W72/04 ,  H04W48/12

CPC classification number: H04W72/042 ,  H04W36/06 ,  H04W48/12 ,  H04W68/00 ,  H04W72/005 ,  H04W72/0453 ,  H04W88/02 ,  H04W88/08

Abstract: A mobile communications system is proposed in which mobile communications devices are arranged to transmit signals to and to receive signals from a base station using one or a subset of available sub-bands, with the base station being configured to move the mobile communications devices between the sub-bands. An anchor sub-band is also provided on which idle mobile communications devices camp until they are moved to one or more other sub-bands in addition to or instead of the anchor sub-band.

Abstract translation: 提出了一种移动通信系统，其中移动通信设备被布置为使用一个或一个可用子带的子集向基站发送信号并从基站接收信号，其中该基站被配置为使移动通信设备在 子带。 锚定子带还被设置在空闲的移动通信设备上，直到它们移动到一个或多个其他子带之外，除了或代替锚子带之外。

公开(公告)号：US20230328769A1

公开(公告)日：2023-10-12

申请号：US18203373

申请日：2023-05-30

Applicant: NEC Corporation

Inventor： Chadi KHIRALLAH ,  Yassin Aden AWAD ,  Yuhua CHEN ,  Robert ARNOTT

IPC: H04L49/25 ,  H04W72/23 ,  H04W72/542

CPC classification number: H04W72/542 ,  H04L49/25 ,  H04W72/23

Abstract: A communication system is disclosed in which a base station manages the transmission of on-demand system information to optimise the trade-off between the additional signalling overhead associated with on-demand transmission and the resource usage inefficiencies associated with the sometimes unnecessary transmission of system information on a periodic basis. The base station manages switching from on-demand transmission to periodic transmission, and vice versa, based on one or more utilisation thresholds.

公开(公告)号：US20230291530A1

公开(公告)日：2023-09-14

申请号：US18119050

申请日：2023-03-08

Applicant: NEC Corporation

Inventor： Yassin Aden AWAD ,  Chadi KHIRALLAH ,  Jagdeep Singh AHLUWALIA ,  Robert ARNOTT

IPC: H04L5/00 ,  H04W72/0453 ,  H04B7/0408 ,  H04W72/23

CPC classification number: H04L5/0087 ,  H04L5/0007 ,  H04L5/0042 ,  H04L5/0064 ,  H04W72/0453 ,  H04L5/0053 ,  H04L5/0094 ,  H04B7/0408 ,  H04L5/0044 ,  H04W72/23 ,  H04L5/0012 ,  H04W28/20

Abstract: A communication system is disclosed in which a communication device and a base station initially communicate using a first bandwidth. The communication device monitors for control data transmitted, by the base station, using a first control resource set conveyed in the first bandwidth. The communication device and the base station switch to using a second bandwidth, wherein the second bandwidth is different to the first bandwidth, and the communication device monitors for control data transmitted, by the base station, using a second control resource set that is conveyed in the second bandwidth.

公开(公告)号：US20230269058A1

公开(公告)日：2023-08-24

申请号：US18139700

申请日：2023-04-26

Applicant: NEC Corporation

Inventor： Robert ARNOTT ,  Diptendu Mitra

IPC: H04L5/00 ,  H04W72/04 ,  H04W72/23 ,  H04W72/0446

CPC classification number: H04L5/0094 ,  H04W72/04 ,  H04W72/23 ,  H04W72/0446

Abstract: A method of signaling resource allocation data in a communication system which uses a plurality of sub-carriers arranged in a sequence of chunks. An allocation of the sub-carriers for each of a plurality of user devices is received. The received allocations are processed to determine, for each user device, data identifying a start chunk and an end chunk within the sequence of chunks, which depend upon the sub-carriers allocated to the user device. Different resource allocation data is generated for each of the user devices using a predetermined mapping which relates the data identifying the corresponding start chunk and end chunk determined by the processing step to resource allocation data comprising a unique value. The respective resource allocation data is signaled to each of the plurality of user devices.

公开(公告)号：US20230011495A1

公开(公告)日：2023-01-12

申请号：US17718498

申请日：2022-04-12

Applicant: NEC Corporation

Inventor： Robert ARNOTT ,  Yassin Aden AWAD

IPC: H04B1/7143 ,  H04L5/00 ,  H04W72/04 ,  H04B7/26

Abstract: A communications node operable to communicate with another communications node over a communications channel having a plurality of frequency resources, the communications node includes data defining a division of the communications channel into a plurality of contiguous sub-bands each having N frequency resources, wherein each frequency resource in a sub-band has a corresponding frequency resource in each of the other sub-bands, data defining an initial allocation of the frequency resources, a resource determination module operable to apply a frequency shift to the initially allocated frequency resources in accordance with a frequency hopping sequence to determine frequency resources to use for communicating information with the other communications node, wherein the frequency shift applied moves the initially allocated frequency resources to corresponding frequency resources in another sub-band, a transceiver for communicating information with the other communications node using the determined frequency resource.

公开(公告)号：US20220264331A1

公开(公告)日：2022-08-18

申请号：US17629454

申请日：2020-08-27

Applicant: NEC Corporation

Inventor： Robert ARNOTT ,  Alberto SUAREZ ,  Patricia WELLS

IPC: H04W24/02 ,  G06N3/08 ,  H04L41/16

Abstract: We apply the techniques of deep reinforcement learning (RL) to the problem of coverage and capacity optimisation (CCO) in wireless networks. This is motivated by the idea that the type of combinatorial optimisation problems encountered in wireless networks are somewhat analogous to strategy games, for which deep RL has already proven to be an effective approach. We use a computer simulation of a small wireless network to generate synthetic data to train a deep Q network (DQN), and evaluate the performance of the DQN with further simulations. We compare the performance of the DQN with a conventional model-based approach. The results show that the DQN achieves slightly better performance than the conventional method, without the need for an explicit model of the environment. The performance is shown to be further improved by using the DQN within a search algorithm.

公开(公告)号：US20220123875A1

公开(公告)日：2022-04-21

申请号：US17429808

申请日：2020-01-29

Applicant: NEC Corporation

Inventor： Caroline Quanyi LIANG ,  Robert ARNOTT

IPC: H04L1/18 ,  H04L5/00

Abstract: A communication system is disclosed in which a user equipment (UE) receives downlink control information (DCI) in accordance with at least one of a first DCI format and a second DCI format, the DCI indicating at least one communication resource to be used for transmitting Hybrid Automatic Repeat Request Acknowledgement (HARQ-ACK) feedback for downlink data at a symbol or sub-slot level, and the DCI format used indicating whether a timing window in which said downlink data is to be transmitted is shorter or longer than a slot length. The UE receives downlink data during said timing window and transmits corresponding HARQ-ACK using the indicated at least one communication resource.