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61. 发明授权

US08300570B2 Ranging regions for wireless communication relay stations 有权
标题翻译：无线通信中继站测距区域
公开(公告)号：US08300570B2
公开(公告)日：2012-10-30
申请号：US12299259
申请日：2007-06-01
申请人： Hang Zhang , Jianglei Ma , Peiying Zhu , Wen Tong
发明人： Hang Zhang , Jianglei Ma , Peiying Zhu , Wen Tong
IPC分类号： H04B7/14
CPC分类号： H04B7/15542 , H04W88/04 , H04W92/10
摘要： One embodiment of the present invention provides a unique ranging technique in wireless communication environments that employ relay stations associated with a base station. Each relay station, and optionally the base station itself, can be allocated a unique ranging region having unique ranging resources that may be used by a mobile station to initiate a ranging function with the corresponding relay station or base station.
摘要翻译：本发明的一个实施例提供了采用与基站相关联的中继站的无线通信环境中的唯一测距技术。每个中继站以及可选的基站本身都可以被分配唯一的测距区域，该测距区域具有唯一的测距资源，该测距资源可以由移动台用于与对应的中继站或基站发起测距功能。

62. 发明授权

US08279836B2 Soft handoff in OFDMA system 有权
公开(公告)号：US08279836B2
公开(公告)日：2012-10-02
申请号：US13221621
申请日：2011-08-30
申请人： Jianglei Ma , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong , Hang Zhang
发明人： Jianglei Ma , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong , Hang Zhang
IPC分类号： H04W36/00
CPC分类号： H04W36/18 , H04B7/022 , H04B7/0691
摘要： Soft handoff in an OFDMA system is disclosed. If the pilot signal strength for a base station exceeds the defined threshold, the base station is added to an active set list. Subcarriers in a plurality of orthogonal frequency division multiplexing (OFDM) symbols are divided and allocated into subchannels. The OFDM symbols are divided and multiplexed. A soft handoff zone with a first dimension of the subchannels and a second dimension of the divided and multiplexed OFDM symbols is defined. The soft handoff zone has subcarriers with a subchannel definition, for example, an identical permutation.

63. 发明授权

US08165094B2 Soft handoff in OFDMA system 有权
标题翻译： OFDMA系统中的软切换
公开(公告)号：US08165094B2
公开(公告)日：2012-04-24
申请号：US13221601
申请日：2011-08-30
申请人： Jianglei Ma , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong , Hang Zhang
发明人： Jianglei Ma , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong , Hang Zhang
IPC分类号： H04W36/00
CPC分类号： H04W36/18 , H04B7/022 , H04B7/0691
摘要： Soft handoff in an OFDMA system is disclosed. If the pilot signal strength for a base station exceeds the defined threshold, the base station is added to an active set list. Subcarriers in a plurality of orthogonal frequency division multiplexing (OFDM) symbols are divided and allocated into subchannels. The OFDM symbols are divided and multiplexed. A soft handoff zone with a first dimension of the subchannels and a second dimension of the divided and multiplexed OFDM symbols is defined. The soft handoff zone has subcarriers with a subchannel definition, for example, an identical permutation.
摘要翻译：披露了OFDMA系统中的软切换。如果基站的导频信号强度超过定义的阈值，则将基站添加到活动集列表中。多个正交频分复用（OFDM）符号中的子载波被划分并分配给子信道。 OFDM符号被分割和多路复用。定义了具有子信道的第一维度和分割和多路复用的OFDM符号的第二维度的软切换区域。软切换区具有子信道定义的子载波，例如相同的置换。

64. 发明授权

US08111763B2 Methods and systems for OFDM using code division multiplexing 有权
标题翻译：使用码分复用的OFDM方法和系统
公开(公告)号：US08111763B2
公开(公告)日：2012-02-07
申请号：US11910091
申请日：2006-03-30
申请人： Jianglei Ma , Ming Jia , Wen Tong , Peiying Zhu , Hua Xu , Hang Zhang , Mo-Han Fong
发明人： Jianglei Ma , Ming Jia , Wen Tong , Peiying Zhu , Hua Xu , Hang Zhang , Mo-Han Fong
IPC分类号： H04L27/28
CPC分类号： H04J13/0003 , H04B1/707 , H04B7/0404 , H04B7/0678 , H04J13/00 , H04J13/16 , H04L5/0016 , H04L5/0026 , H04L5/0048 , H04L5/005 , H04L25/0204 , H04L25/0226 , H04L25/0232 , H04L25/03866 , H04L27/2613 , H04L27/2627 , H04W72/044
摘要： In some embodiments of the invention, OFDM symbols are transmitted as a plurality of clusters. A cluster includes a plurality of OFDM sub-carriers in frequency, over a plurality of OFDM symbol durations in time. Each cluster includes data as well as pilot information as a reference signal for channel estimation. In some embodiments, a plurality of clusters collectively occupy the available sub-carrier set in the frequency domain that is used for transmission. In some embodiments of the invention data and/or pilots are spread within each cluster using code division multiplexing (CDM). In some embodiments pilots and data are separated by distributing data on a particular number of the plurality of OFDM symbol durations and pilots on a remainder of the OFDM symbol durations. CDM spreading can be performed in time and/or frequency directions.
摘要翻译：在本发明的一些实施例中，OFDM符号作为多个簇发送。在多个OFDM符号持续时间内，群集包括频率上的多个OFDM子载波。每个簇包括数据以及作为信道估计的参考信号的导频信息。在一些实施例中，多个集群共同地占用用于传输的频域中的可用子载波集合。在本发明的一些实施例中，使用码分多路复用（CDM）在每个簇内扩展数据和/或导频。在一些实施例中，通过在OFDM码元持续时间的其余部分上分配关于多个OFDM符号持续时间的特定数目和导频上的数据来分离导频和数据。可以在时间和/或频率方向上执行CDM扩展。

65. 发明申请

US20110310848A1 SOFT HANDOFF IN OFDMA SYSTEM 有权
公开(公告)号：US20110310848A1
公开(公告)日：2011-12-22
申请号：US13221601
申请日：2011-08-30
申请人： Jianglei Ma , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong , Hang Zhang
发明人： Jianglei Ma , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong , Hang Zhang
IPC分类号： H04W36/00
CPC分类号： H04W36/18 , H04B7/022 , H04B7/0691
摘要： Soft handoff in an OFDMA system is disclosed. If the pilot signal strength for a base station exceeds the defined threshold, the base station is added to an active set list. Subcarriers in a plurality of orthogonal frequency division multiplexing (OFDM) symbols are divided and allocated into subchannels. The OFDM symbols are divided and multiplexed. A soft handoff zone with a first dimension of the subchannels and a second dimension of the divided and multiplexed OFDM symbols is defined. The soft handoff zone has subcarriers with a subchannel definition, for example, an identical permutation.

66. 发明申请

US20110310725A1 SOFT HANDOFF IN OFDMA SYSTEM 有权
公开(公告)号：US20110310725A1
公开(公告)日：2011-12-22
申请号：US13221621
申请日：2011-08-30
申请人： Jianglei Ma , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong , Hang Zhang
发明人： Jianglei Ma , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong , Hang Zhang
IPC分类号： H04J11/00 , H04W36/18
CPC分类号： H04W36/18 , H04B7/022 , H04B7/0691
摘要： Soft handoff in an OFDMA system is disclosed. If the pilot signal strength for a base station exceeds the defined threshold, the base station is added to an active set list. Subcarriers in a plurality of orthogonal frequency division multiplexing (OFDM) symbols are divided and allocated into subchannels. The OFDM symbols are divided and multiplexed. A soft handoff zone with a first dimension of the subchannels and a second dimension of the divided and multiplexed OFDM symbols is defined. The soft handoff zone has subcarriers with a subchannel definition, for example, an identical permutation.

67. 发明申请

US20110199996A1 METHOD AND SYSTEM FOR ALLOCATING MEDIA ACCESS CONTROL LAYER RESOURCES IN A WIRELESS COMMUNICATION ENVIRONMENT 有权
标题翻译：在无线通信环境中分配媒体访问控制层资源的方法和系统
公开(公告)号：US20110199996A1
公开(公告)日：2011-08-18
申请号：US13093419
申请日：2011-04-25
申请人： Hang Zhang , Jianglei Ma , Ming Jia , Mo-Han Fong , Peiying Zhu , Wen Tong
发明人： Hang Zhang , Jianglei Ma , Ming Jia , Mo-Han Fong , Peiying Zhu , Wen Tong
IPC分类号： H04W28/00
CPC分类号： H04W72/0406 , H04B7/0413 , H04L1/1887 , H04L5/023 , H04L12/185 , H04L27/2627 , H04L61/2069 , H04W4/08 , H04W48/10 , H04W72/005 , H04W72/04 , H04W74/004 , H04W74/006 , Y02D30/30
摘要： A method and system for allocating shareable wireless transmission resources. A resource pool is established. The resource pool is divided into a plurality of physical layer allocation units usable for wirelessly transmitting control information and traffic data. The allocation units are assigned at the media access control layer for the wireless transmission of the control information and traffic data. The system and method of the present invention also allows mobile stations to be dynamically grouped into multicast groupings to reduce system overhead resource requirements.
摘要翻译：一种用于分配可共享无线传输资源的方法和系统。建立资源池。资源池被划分为可用于无线发送控制信息和业务数据的多个物理层分配单元。分配单元被分配在媒体接入控制层，用于无线传输控制信息和业务数据。本发明的系统和方法还允许移动台被动态分组成多播分组以减少系统开销资源需求。

68. 发明授权

US07924935B2 Channel sounding in OFDMA system 有权
标题翻译： OFDMA系统中的频道探测
公开(公告)号：US07924935B2
公开(公告)日：2011-04-12
申请号：US11663946
申请日：2005-09-29
申请人： Wen Tong , Jianglei Ma , Ming Jia , Peiying Zhu , Hang Zhang , Dongsheng Yu , Hua Xu
发明人： Wen Tong , Jianglei Ma , Ming Jia , Peiying Zhu , Hang Zhang , Dongsheng Yu , Hua Xu
IPC分类号： H04B7/02 , H04L1/02 , H04K1/10 , H04L27/28
CPC分类号： H04L1/0026 , H04B7/0413 , H04B7/0619 , H04B7/0669 , H04B7/0697 , H04L1/0675 , H04L5/0007 , H04L5/0032 , H04L5/0048 , H04L5/0057 , H04L25/0204 , H04L25/0224 , H04L27/2602
摘要： Method and apparatus for determining a downlink channel response in an orthogonal frequency division multiplexing access (OFDMA) system. The method and apparatus uses the uplink quality indication channel for determining the downlink channel response, or uses round trip pilot relay channel sounding. The uplink quality indication channel may comprise modified mini-tiles. The subscriber station using round trip pilot relay channel sounding sends composite transponder pilots after receiving the DL pilots.
摘要翻译：用于确定正交频分复用接入（OFDMA）系统中的下行链路信道响应的方法和装置。该方法和装置使用上行链路质量指示信道来确定下行链路信道响应，或者使用往返导频中继信道发声。上行链路质量指示信道可以包括经修改的微瓦。在接收到DL飞行员之后，使用往返导频中继信道探测的用户站发送复合应答器导频。

69. 发明授权

US07813261B2 Methods and systems for transmission of orthogonal frequency division multiplexed symbols 有权
标题翻译：用于传输正交频分复用符号的方法和系统
公开(公告)号：US07813261B2
公开(公告)日：2010-10-12
申请号：US11887115
申请日：2006-03-30
申请人： Jianglei Ma , Hang Zhang , Wen Tong , Peiying Zhu , Ming Jia
发明人： Jianglei Ma , Hang Zhang , Wen Tong , Peiying Zhu , Ming Jia
IPC分类号： H04J11/00 , H04J3/26 , H04H20/71 , H04L23/02
CPC分类号： H04L27/2602 , H04L1/0003 , H04L1/0009 , H04L27/2655
摘要： In some embodiments of the present invention there is provided a frame structure for transmitting an integer number of OFDM symbols in which some of the OFDM symbols are to be transmitted in a unicast format and some of the OFDM symbols are to be transmitted in a broadcast format. The frame structure includes partitioning of a frame into at least two portions to accommodate both unicast and broadcast modes in the frame. The frame structure is used for transmitting multiple frames in a serial manner from at least one transmitter. The unicast mode supports transmission of OFDM symbols from a single transmitter to a single receiver. The broadcast mode supports transmission of OFDM symbols from multiple transmitters to all receivers within range of the multiple transmitters. The multicast mode supports transmission of OFDM symbols from multiple transmitters to multiple receivers within range of the multiple transmitters.
摘要翻译：在本发明的一些实施例中，提供了一种用于发送整数个OFDM符号的帧结构，其中一些OFDM符号将以单播格式发送，并且一些OFDM符号将以广播格式发送。帧结构包括将帧划分成至少两个部分以适应帧中的单播和广播模式。帧结构用于从至少一个发射机以串行方式发送多个帧。单播模式支持将OFDM符号从单个发射机传输到单个接收机。广播模式支持从多个发射机向多个发射机的范围内的所有接收机传输OFDM符号。组播模式支持将多个发射机的OFDM符号从多个发射机的范围内传输到多个接收机。

70. 发明申请

US20090252079A1 METHODS AND SYSTEMS FOR WIRELESS NETWORKS WITH RELAYS 有权
标题翻译：无线网络与继电器的方法与系统
公开(公告)号：US20090252079A1
公开(公告)日：2009-10-08
申请号：US12300522
申请日：2007-05-31
申请人： Hang Zhang , Jianglei Ma , Peiying Zhu , Mo-Han Fong , Wen Tong
发明人： Hang Zhang , Jianglei Ma , Peiying Zhu , Mo-Han Fong , Wen Tong
IPC分类号： H04J11/00 , H04B7/14
CPC分类号： H04B7/14 , H04B7/155 , H04L27/2601 , H04W72/04 , H04W72/0446 , H04W84/047 , H04W88/04
摘要： Methods and systems are provided for use with wireless networks having one or more cell in which each cell includes a base station (BS), at least one relay station (RS) and at least one mobile station (MS). The at least one relay station can be used as an intermediate station for providing communication between the BS and MS. Methods are provided for allocating OFDM resources for communicating between the BS, RS and/or MS for example dividing transmission resources into uplink and downlink transmissions and methods of inserting pilot symbols into transmission resources used by the RS. In some embodiments on the invention, the methods are consistent and/or can be used in conjunction with existing standards such as 802.16e.
摘要翻译：方法和系统被提供用于具有一个或多个小区的无线网络，其中每个小区包括基站（BS），至少一个中继站（RS）和至少一个移动台（MS）。所述至少一个中继站可以用作在BS和MS之间提供通信的中间站。提供了用于分配用于BS，RS和/或MS之间的通信的OFDM资源的方法，例如将传输资源划分为上行链路和下行链路传输，以及将导频符号插入到由RS使用的传输资源中的方法。在本发明的一些实施例中，所述方法是一致的和/或可以与诸如802.16e的现有标准结合使用。

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