-
公开(公告)号：US20150263878A1
公开(公告)日：2015-09-17
申请号：US14712964
申请日：2015-05-15
Applicant: Apple Inc.
Inventor： Adrian Smith , Xiao-Dong Li , David Steer , Kelvin Kar-Kin Au , Robert Novak , Mark Earnshaw
CPC classification number: H04L27/2646 , H04B7/18534 , H04L5/0007 , H04L5/023 , H04W56/0045
Abstract: A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques.
Abstract translation: 一种用于通过解决由于移动台和无线电接入节点之间的信号中的传播时间差异而可能发生的定时未对准问题来在多个OFDM无线电系统中实现链路预算改进的方法和系统。 在主无线接入节点的主要路径和到各种无线接入节点的不同路径之间共享或分割定时偏移。 调整移动站之间的相对定时偏移，使用各种不同的分组技术将移动站分组成区域，并且使用各种调度技术中的一种或多种调度每个移动站的传输。
-
公开(公告)号：US20140050126A1
公开(公告)日：2014-02-20
申请号：US13944424
申请日：2013-07-17
Applicant: Apple Inc.
Inventor： James Naden , Gamini Senarath , David Steer
IPC: H04L12/741 , H04B7/14
CPC classification number: H04L45/74 , H04B7/14 , H04B7/155 , H04B7/2606 , H04L5/0016 , H04L5/0039 , H04L5/0044 , H04L5/0053 , H04L5/1469 , H04L25/03866 , H04L27/2656
Abstract: A wireless network includes a base station which can serve terminals directly, or via multi-hop transmission paths via relay stations. The base station transmits a downlink sub-frame which includes a first set of frame control information and a second set of frame control information. The second set of frame control information occupies a different position within the downlink sub-frame compared to the first set of frame control information. A relay station is able to transmit a downlink sub-frame to a terminal, or another relay station, while still being able to receive a set of frame control at a different time during the downlink sub-frame. The invention is especially useful in a wireless network in which the downlink transmissions of a base station and a relay station are synchronized to one another and where the downlink transmissions of a base station and relay station occupy the same, or similar, frequency bearer.
Abstract translation: 无线网络包括可以直接服务终端的基站，或经由中继站的多跳传输路径。 基站发送包括第一组帧控制信息和第二组帧控制信息的下行链路子帧。 与第一组帧控制信息相比，第二组帧控制信息在下行链路子帧内占据不同的位置。 中继站能够在下行链路子帧期间能够在不同时间接收一组帧控制的同时向终端或另一个中继站发送下行链路子帧。 本发明在其中基站和中继站的下行链路传输彼此同步并且其中基站和中继站的下行链路传输占据相同或类似的频率承载的无线网络中特别有用。
-
3.发明申请Method and System for Diversity Using Orthogonal Frequency/Division Multiplexing 审中-公开使用正交频分复用的分集方法和系统公开(公告)号：US20130051312A1
公开(公告)日：2013-02-28
申请号：US13656311
申请日：2012-10-19
Applicant: Apple Inc.
Inventor： Adrian Smith , Xiao-Dong Li , David Steer , Kelvin Kar-Kin Au , Robert Novak , Mark Earnshaw
IPC: H04W56/00
CPC classification number: H04L27/2646 , H04B7/18534 , H04L5/0007 , H04L5/023 , H04W56/0045
Abstract: A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques.
Abstract translation: 一种用于通过解决由于移动台和无线电接入节点之间的信号中的传播时间差异而可能发生的定时未对准问题来在多个OFDM无线电系统中实现链路预算改进的方法和系统。 在主无线接入节点的主要路径和到各种无线接入节点的不同路径之间共享或分割定时偏移。 调整移动站之间的相对定时偏移，使用各种不同的分组技术将移动站分组成区域，并且使用各种调度技术中的一种或多种调度每个移动站的传输。
-
4.发明授权Method and system for diversity using orthogonal frequency/division multiplexing 有权使用正交频分复用的分集方法和系统公开(公告)号：US09037093B2
公开(公告)日：2015-05-19
申请号：US13656311
申请日：2012-10-19
Applicant: Apple Inc.
Inventor： Adrian Smith , Xiao-Dong Li , David Steer , Kelvin Kar-Kin Au , Robert Novak , Mark Earnshaw
CPC classification number: H04L27/2646 , H04B7/18534 , H04L5/0007 , H04L5/023 , H04W56/0045
Abstract: A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques.
Abstract translation: 一种用于通过解决由于移动台和无线电接入节点之间的信号中的传播时间差异而可能发生的定时未对准问题来在多个OFDM无线电系统中实现链路预算改进的方法和系统。 在主无线接入节点的主要路径和到各种无线接入节点的不同路径之间共享或分割定时偏移。 调整移动站之间的相对定时偏移，使用各种不同的分组技术将移动站分组成区域，并且使用各种调度技术中的一种或多种调度每个移动站的传输。
-
公开(公告)号：US10554465B2
公开(公告)日：2020-02-04
申请号：US16415111
申请日：2019-05-17
Applicant: Apple Inc.
Inventor： Adrian Smith , Xiao-Dong Li , David Steer , Kelvin Kar-Kin Au , Robert Novak , Mark Earnshaw
Abstract: A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques.
-
Patent Agency Ranking
公开(公告)号：US20190273645A1
公开(公告)日：2019-09-05
申请号：US16415111
申请日：2019-05-17
Applicant: Apple Inc.
Inventor： Adrian Smith , Xiao-Dong Li , David Steer , Kelvin Kar-Kin Au , Robert Novak , Mark Earnshaw
Abstract: A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques.
-
公开(公告)号：US09049156B2
公开(公告)日：2015-06-02
申请号：US13944424
申请日：2013-07-17
Applicant: Apple Inc.
Inventor： James Naden , Gamini Senarath , David Steer
IPC: H04L5/00 , H04L12/26 , H04L12/28 , H04L12/741 , H04B7/155 , H04B7/26 , H04L5/14 , H04L25/03 , H04B7/14 , H04L27/26
CPC classification number: H04L45/74 , H04B7/14 , H04B7/155 , H04B7/2606 , H04L5/0016 , H04L5/0039 , H04L5/0044 , H04L5/0053 , H04L5/1469 , H04L25/03866 , H04L27/2656
Abstract: A wireless network includes a base station which can serve terminals directly, or via multi-hop transmission paths via relay stations. The base station transmits a downlink sub-frame which includes a first set of frame control information and a second set of frame control information. The second set of frame control information occupies a different position within the downlink sub-frame compared to the first set of frame control information. A relay station is able to transmit a downlink sub-frame to a terminal, or another relay station, while still being able to receive a set of frame control at a different time during the downlink sub-frame. The invention is especially useful in a wireless network in which the downlink transmissions of a base station and a relay station are synchronized to one another and where the downlink transmissions of a base station and relay station occupy the same, or similar, frequency bearer.
Abstract translation: 无线网络包括可以直接服务终端的基站，或经由中继站的多跳传输路径。 基站发送包括第一组帧控制信息和第二组帧控制信息的下行链路子帧。 与第一组帧控制信息相比，第二组帧控制信息在下行链路子帧内占据不同的位置。 中继站能够在下行链路子帧期间能够在不同时间接收一组帧控制的同时向终端或另一个中继站发送下行链路子帧。 本发明在其中基站和中继站的下行链路传输彼此同步并且其中基站和中继站的下行链路传输占据相同或类似的频率承载的无线网络中特别有用。
-
公开(公告)号：US20130246784A1
公开(公告)日：2013-09-19
申请号：US13766519
申请日：2013-02-13
Applicant: Apple, Inc.
Inventor： Hang Zhang , Peiying Zhu , Mo-Han Fong , Wen Tong , Gamini Senarath , Derek Yu , David Steer
IPC: H04W12/02
CPC classification number: H04W12/02 , H04B7/155 , H04L63/0428 , H04L63/0464 , H04L63/0478 , H04W28/16 , H04W84/18 , H04W88/04 , H04W88/08
Abstract: Security in wireless communication networks that employ relay stations to facilitate communications between base stations and mobile stations is enhanced. In one embodiment, resource information provided to one or more relay stations from a base station or another relay station is encrypted prior to being delivered to the one or more relay stations. Only authorized relay stations are allocated an appropriate key necessary to decrypt the resource information. As such, only appropriate relay stations are able to access and use the resource information to effect communications directly or indirectly between the base stations and the mobile stations. In certain embodiments, the resource information is delivered between the various base and relay stations using either unicast or multicast delivery techniques.
-
公开(公告)号：US10298433B2
公开(公告)日：2019-05-21
申请号：US14712964
申请日：2015-05-15
Applicant: Apple Inc.
Inventor： Adrian Smith , Xiao-Dong Li , David Steer , Kelvin Kar-Kin Au , Robert Novak , Mark Earnshaw
Abstract: A method and system for achieving a link budget improvement in a diverse OFDM radio system by addressing the timing misalignment issue that can occur due to the differences in propagation time in signals between mobile stations and Radio Access Nodes. Timing misalignment is shared or split between the primary path to a primary Radio Access Node and a diverse path to a diverse Radio Access Node. The relative timing offsets between mobile stations are adjusted, the mobile stations are grouped into zones using a variety of different grouping techniques, and the transmission for each mobile station is scheduled, using one or more of a variety of scheduling techniques.
-
公开(公告)号：US09510190B2
公开(公告)日：2016-11-29
申请号：US13766519
申请日：2013-02-13
Applicant: APPLE INC.
Inventor： Hang Zhang , Peiying Zhu , Mo-Han Fong , Wen Tong , Gamini Senarath , Derek Yu , David Steer
CPC classification number: H04W12/02 , H04B7/155 , H04L63/0428 , H04L63/0464 , H04L63/0478 , H04W28/16 , H04W84/18 , H04W88/04 , H04W88/08
Abstract: Security in wireless communication networks that employ relay stations to facilitate communications between base stations and mobile stations is enhanced. In one embodiment, resource information provided to one or more relay stations from a base station or another relay station is encrypted prior to being delivered to the one or more relay stations. Only authorized relay stations are allocated an appropriate key necessary to decrypt the resource information. As such, only appropriate relay stations are able to access and use the resource information to effect communications directly or indirectly between the base stations and the mobile stations. In certain embodiments, the resource information is delivered between the various base and relay stations using either unicast or multicast delivery techniques.
-
-
-
-
-
-
-
-
-
Search Results
10
records
(took 0.022 seconds)
