专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

11. 发明授权

US10721114B2 Method and system for symbol sequence generation and transmission for non-orthogonal multiple access transmission 有权
公开(公告)号：US10721114B2
公开(公告)日：2020-07-21
申请号：US15821809
申请日：2017-11-23
申请人： Sanjeewa Herath , Alireza Bayesteh , Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong
发明人： Sanjeewa Herath , Alireza Bayesteh , Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong
IPC分类号： H04L27/34 , H04W72/04 , H04L5/00 , H04W88/08 , H04L27/26 , H04W88/02
摘要： Methods and systems are disclosed for symbol sequence generation and transmission for non-orthogonal multiple access (NoMA) transmission. A NoMA signal may be generated based on: (1) a first symbol sequence, the first symbol sequence determined from a set of input bits and associated with a first MA signature within a first MA signature space; (2) a second symbol sequence determined based on the first symbol sequence, the second symbol sequence being associated with a second MA signature within a second MA signature space; and (3) a symbol-to-resource element mapping applied to the second symbol sequence to produce the NoMA signal.

12. 发明授权

US09801028B2 Multimedia broadcast multicast service (MBMS) utilizing spatial multiplexing 有权
公开(公告)号：US09801028B2
公开(公告)日：2017-10-24
申请号：US12933740
申请日：2009-03-20
申请人： Jianglei Ma , Aaron Callard , Ming Jia , Wen Tong , Peiying Zhu , Hang Zhang
发明人： Jianglei Ma , Aaron Callard , Ming Jia , Wen Tong , Peiying Zhu , Hang Zhang
IPC分类号： H04L12/28 , H04W4/06 , H04W72/00 , H04B7/06 , H04W36/30
CPC分类号： H04W4/06 , H04B7/0413 , H04B7/0697 , H04L5/0007 , H04L5/0048 , H04L5/0082 , H04W36/0005 , H04W36/30 , H04W72/005
摘要： Systems and methods are disclosed herein for an enhanced Multimedia Broadcast Multicast Service (MBMS) in a wireless communications network. In one embodiment, a number of base stations in a MBMS zone, or broadcast region, accommodate both Spatial Multiplexing (SM) enabled user elements and non-SM enabled user elements. In another embodiment, a number of base stations form a MBMS zone, or broadcast region, where the MBMS zone is sub-divided into an SM zone and a non-SM zone. In another embodiment, the wireless communications network includes multiple MBMS zones. For each MBMS zone, base stations serving the MBMS zone transmit an MBMS zone identifier (ID) for the MBMS zone. The MBMS zone ID may be used by a user element for decoding and/or to determine when to perform a handoff from one MBMS zone to another.

13. 发明授权

US08804598B2 Method and system using relays with aggregated spectrum 有权
标题翻译：具有聚合频谱的继电器的方法和系统
公开(公告)号：US08804598B2
公开(公告)日：2014-08-12
申请号：US12996189
申请日：2009-06-12
申请人： Jianglei Ma , Hang Zhang , Ming Jia , Wen Tong , Hua Xu , Peiying Zhu
发明人： Jianglei Ma , Hang Zhang , Ming Jia , Wen Tong , Hua Xu , Peiying Zhu
IPC分类号： H04B7/14 , H04W72/04 , H04W72/08 , H04W52/04
CPC分类号： H04L5/0039 , A61K9/2081 , A61K9/209 , A61K9/2886 , A61K9/5026 , A61K9/5073 , A61K9/5084 , A61K31/455 , A61K31/54 , A61K45/06 , H04B7/15542 , H04L5/0007 , H04L5/003 , H04L5/14 , H04L25/20 , H04W52/143 , H04W72/0453 , H04W84/047 , A61K2300/00
摘要： International Mobile Telecommunications (IMT) Advanced technology, also known as 4th Generation (4G) targets to support up to 100 MHz BW. LTE currently supports single carrier bandwidths of up to 20 MHz. The present application describes a multi-carrier approach in which some embodiments of the invention provide a simple solution of aggregating multiple single carrier bandwidths to obtain a wider bandwidth (>20 MHz). Such an approach may extend Long Term Evolution (LTE) bandwidth to greater than that provided by a single carrier, yet maintain full backward compatibility with technologies that predate 4G technology and utilize smaller, single carrier bandwidths. More generally, embodiments of the invention can apply to other communication standards than only LTE.
摘要翻译：国际移动电信（IMT）先进技术，也被称为第四代（4G）目标，以支持高达100 MHz的BW。 LTE目前支持高达20 MHz的单载波带宽。本申请描述了多载波方法，其中本发明的一些实施例提供聚合多个单载波带宽以获得更宽带宽（> 20MHz）的简单解决方案。这种方法可以将长期演进（LTE）带宽扩展到大于由单个载波提供的带宽，但仍然保持与早于4G技术并利用更小的单载波带宽的技术的完全向后兼容性。更一般地，本发明的实施例可以应用于仅比LTE的其他通信标准。

14. 发明授权

US08526400B2 Radio access system and method using OFDM and CDMA for broadband data transmission 有权
标题翻译：使用OFDM和CDMA进行宽带数据传输的无线接入系统和方法
公开(公告)号：US08526400B2
公开(公告)日：2013-09-03
申请号：US11816370
申请日：2006-02-15
申请人： Wen Tong , Jianglei Ma , Hang Zhang , Mo-Han Fong , Ming Jia , Peiying Zhu , Geng Wu , Jun Li , Dong-Sheng Yu
发明人： Wen Tong , Jianglei Ma , Hang Zhang , Mo-Han Fong , Ming Jia , Peiying Zhu , Geng Wu , Jun Li , Dong-Sheng Yu
IPC分类号： H04B7/216
CPC分类号： H04W88/06 , H04B1/707 , H04J11/0093 , H04L5/001 , H04L5/0023 , H04L5/0035 , H04L5/0044 , H04L5/0048 , H04L5/0087 , H04L25/0204 , H04L25/0226 , H04W28/10 , H04W88/10
摘要： A method and system for wireless data communication using a first wireless communication technology and a second wireless communication technology. The second wireless communication technology being different from the first wireless communication technology. A transmitter is arranged to transmit data using frame structures based on the first wireless communication technology and the second wireless communication technology in which the frame structure based on the second wireless communication technology has a timing structure, MAC and pilot that are also used with the frame structure of the first wireless communication technology. The transmitter is arranged to selectively change transmission on a frame by frame basis between the first wireless communication technology and the second wireless communication technology.
摘要翻译：一种使用第一无线通信技术和第二无线通信技术进行无线数据通信的方法和系统。第二无线通信技术与第一无线通信技术不同。发射机被布置为使用基于第一无线通信技术的帧结构和基于第二无线通信技术的帧结构具有定时结构的第二无线通信技术来发送数据，也与帧一起使用的MAC和导频第一种无线通信技术的结构。发射机被布置为在第一无线通信技术和第二无线通信技术之间逐帧地选择性地改变传输。

15. 发明授权

US08446879B2 Soft handoff in OFDMA system 有权
标题翻译： OFDMA系统中的软切换
公开(公告)号：US08446879B2
公开(公告)日：2013-05-21
申请号：US13551726
申请日：2012-07-18
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： H04W36/18
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.
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。

16. 发明申请

US20130010808A1 SCATTERED PILOT PATTERN AND CHANNEL ESTIMATION METHOD FOR MIMO-OFDM SYSTEMS 有权
公开(公告)号：US20130010808A1
公开(公告)日：2013-01-10
申请号：US13616438
申请日：2012-09-14
申请人： Jianglei Ma , Ming Jia , Peiying Zhu , Wen Tong
发明人： Jianglei Ma , Ming Jia , Peiying Zhu , Wen Tong
IPC分类号： H04L27/28
CPC分类号： H04L27/2613 , H04B7/04 , H04B7/0413 , H04B7/0684 , H04L1/0618 , H04L5/0023 , H04L5/0048 , H04L25/0204 , H04L25/022 , H04L25/0234 , H04L25/0244 , H04L27/2602 , H04L27/2627 , H04W52/42
摘要： Methods and apparatus are provided for inserting data symbols and pilot symbols in an OFDM (orthogonal frequency division multiplexing) transmission resource utilizing frequency hopping patterns for the data symbols and/or the pilot symbols. Data symbols and pilot symbols are allocated for down link (base station to mobile station) and up link (mobile station to bases station) transmission resources in a two-dimensional time-frequency pattern. For each antenna of a MIMO-OFDM (multiple input multiple output OFDM) communication system, pilot symbols are inserted in a scattered pattern in time-frequency and data symbols are inserted in an identical frequency-hopping pattern in time-frequency as that of other antennas.

17. 发明授权

US08351967B2 Multi-antenna scheduling system and method 有权
标题翻译：多天线调度系统及方法
公开(公告)号：US08351967B2
公开(公告)日：2013-01-08
申请号：US13252636
申请日：2011-10-04
申请人： Ming Jia , Jianglei Ma , Jianming Wu , Peiying Zhu , Wen Tong
发明人： Ming Jia , Jianglei Ma , Jianming Wu , Peiying Zhu , Wen Tong
IPC分类号： H04B7/00
CPC分类号： H04W72/082 , H04B7/0417 , H04B7/0443 , H04B7/0452 , H04B7/0632 , H04W72/1231
摘要： A wireless communication method and system using virtual MIMO (“V-MIMO”) are provided. Post processing signal to interference and noise ratios (“SINR”) for a plurality of signals corresponding to a plurality of mobile terminals arranged as a V-MIMO group are estimated. The one of the plurality of mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected mobile terminal is scheduled. The signal corresponding to the selected mobile terminal is cancelled. Post processing signal to interference and noise ratios (“SINR”) for the signals corresponding to the remaining mobile terminals is re-estimated. The one of the remaining mobile terminals having the highest post processing SINR is selected. Wireless communication for the selected remaining mobile terminal is scheduled.
摘要翻译：提供了一种使用虚拟MIMO（V-MIMO）的无线通信方法和系统。估计对应于排列为V-MIMO组的多个移动终端的多个信号的后处理信号与干扰和噪声比（SINR）。选择具有最高后处理SINR的多个移动终端中的一个。安排所选移动终端的无线通信。对应于所选移动终端的信号被取消。对与剩余的移动终端相对应的信号的后处理信号与干扰和噪声比（SINR）进行重新估计。选择具有最高后处理SINR的剩余移动终端中的一个。调度所选择的剩余移动终端的无线通信。

18. 发明授权

US08340072B2 Preambles in OFDMA system 有权
标题翻译： OFDMA系统中的前缀
公开(公告)号：US08340072B2
公开(公告)日：2012-12-25
申请号：US13114579
申请日：2011-05-24
申请人： Jianglei Ma , Hang Zhang , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong
发明人： Jianglei Ma , Hang Zhang , Wen Tong , Ming Jia , Peiying Zhu , Mo-Han Fong
IPC分类号： H04W72/04
CPC分类号： H04L27/2692 , H04B7/02 , H04B7/0452 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L7/043 , H04L27/2613 , H04L27/265 , H04L27/2655 , H04L27/2686 , H04W24/02
摘要： The present invention provides a preamble that is inserted into an OFDMA frame and has a common sequence for all the base stations participating in a transmission. The subscriber station performs fine synchronization using the common sequence on the common preamble, and the resulting peaks will provide the locations of candidate base stations. The base station specific search is then performed in the vicinities of those peaks by using base station specific pseudo-noise sequences. With this two stage cell search, the searching window is drastically reduced. The preamble is matched to known values by a respective receiver to decode the signals and permit multiple signals to be transferred from the transmitter to the receiver. The preamble may comprise two parts, Preamble-I and Preamble-2, which may be used in different systems, including multioutput, multi-input (MIMO) systems.
摘要翻译：本发明提供插入到OFDMA帧中并具有参与传输的所有基站的公共序列的前同步码。用户站使用公共前导码上的公共序列执行精细同步，并且所得到的峰值将提供候选基站的位置。然后通过使用基站专用伪噪声序列，在那些峰附近执行基站专用搜索。通过这两个阶段的单元格搜索，搜索窗口大大减少。前导码由相应的接收机与已知值匹配以对信号进行解码，并允许多个信号从发射机传送到接收机。前导码可以包括两个部分，即前导码1和前导码2，其可以在不同的系统中使用，包括多输入多输入（MIMO）系统。

19. 发明授权

US08213292B2 System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design 有权
标题翻译：用于MIMO OFDM通信系统和物理层分组和前导码设计的系统接入和同步方法
公开(公告)号：US08213292B2
公开(公告)日：2012-07-03
申请号：US12269432
申请日：2008-11-12
申请人： Jianglei Ma , Ming Jia , Peiying Zhu , Wen Tong
发明人： Jianglei Ma , Ming Jia , Peiying Zhu , Wen Tong
IPC分类号： H04J11/00
CPC分类号： H04W36/08 , H04B7/022 , H04B7/04 , H04B7/0413 , H04B7/0667 , H04B7/0697 , H04J11/0069 , H04L5/0023 , H04L5/0037 , H04L5/0048 , H04L7/0008 , H04L27/2602 , H04L27/2607 , H04L27/2613 , H04L27/2627 , H04L27/2628 , H04L27/2663 , H04L27/2665 , H04L27/2672 , H04L27/2675
摘要： A method and apparatus are provided for performing acquisition, synchronization and cell selection within an MIMO-OFDM communication system. A coarse synchronization is performed to determine a searching window. A fine synchronization is then performed by measuring correlations between subsets of signal samples, whose first signal sample lies within the searching window, and known values. The correlations are performed in the frequency domain of the received signal. In a multiple-output OFDM system, each antenna of the OFDM transmitter has a unique known value. The known value is transmitted as pairs of consecutive pilot symbols, each pair of pilot symbols being transmitted at the same subset of sub-carrier frequencies within the OFDM frame.
摘要翻译：提供了一种用于在MIMO-OFDM通信系统内执行采集，同步和小区选择的方法和装置。执行粗同步以确定搜索窗口。然后通过测量其第一信号样本位于搜索窗口内的信号样本的子集与已知值之间的相关性来执行精细同步。相关性在接收信号的频域中进行。在多输出OFDM系统中，OFDM发射机的每个天线具有唯一的已知值。已知值作为连续导频符号对发送，每对导频符号在OFDM帧内的子载波频率的相同子集上发送。

20. 发明授权

US08189455B1 Coding information for communication over an orthogonal frequency division multiple access (OFDMA)-based wireless link 有权
标题翻译：用于通过基于正交频分多址（OFDMA）的无线链路进行通信的编码信息
公开(公告)号：US08189455B1
公开(公告)日：2012-05-29
申请号：US12266772
申请日：2008-11-07
申请人： Jianglei Ma , Ming Jia , Mo-Han Fong , Peiying Zhu , Wen Tong
发明人： Jianglei Ma , Ming Jia , Mo-Han Fong , Peiying Zhu , Wen Tong
IPC分类号： H04J11/00 , H04B1/00
CPC分类号： H04J11/0023 , H04J13/0062 , H04J13/22
摘要： In a wireless access network, a transmitter provides a pool of sequences having a reduced peak-to-average power ratio. Information to be transmitted is mapped to a selected at least one of the pool of sequences. The selected at least one sequence is transmitted over an orthogonal frequency division multiple access (OFDMA)-based wireless link of the wireless access network.
摘要翻译：在无线接入网络中，发射机提供具有降低的峰值与平均功率比的序列池。要发送的信息被映射到所选择的序列池中的至少一个。所选择的至少一个序列通过无线接入网络的基于正交频分多址（OFDMA）的无线链路传输。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式