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131. 发明授权

US11855918B2 Flexible frame structure for wireless communication 有权
公开(公告)号：US11855918B2
公开(公告)日：2023-12-26
申请号：US16887361
申请日：2020-05-29
申请人： Jianglei Ma , Peiying Zhu , Wen Tong , Ming Jia
发明人： Jianglei Ma , Peiying Zhu , Wen Tong , Ming Jia
IPC分类号： H04L5/00 , H04L27/26
CPC分类号： H04L5/0044 , H04L27/2628
摘要： Current radio frame structures in Long-Term Evolution (LTE) and New Radio (NR) have some restrictions. A frame structure is disclosed herein that aims to provide more flexibility. Embodiments of the flexible frame structure include different parameters that are flexible, i.e. that are configurable. A non-exhaustive list of parameters that may be configurable include: length of the frame; length of a subframe (if a subframe is even defined); length of a slot and/or number of symbol blocks in a slot (if a slot is even defined); length of the CP and/or data portion in a symbol block, or ratio of CP to data portion, which may vary between symbol blocks; downlink/uplink switching gap length, etc.

132. 发明授权

US09451622B2 Methods and systems for wireless networks with relays 有权
标题翻译：具有继电器的无线网络的方法和系统
公开(公告)号：US09451622B2
公开(公告)日：2016-09-20
申请号：US13618926
申请日：2012-09-14
申请人： Jianglei Ma , Hang Zhang , Peiying Zhu , Mo-Han Fong , Wen Tong , Ming Jia
发明人： Jianglei Ma , Hang Zhang , Peiying Zhu , Mo-Han Fong , Wen Tong , Ming Jia
IPC分类号： G08C15/00 , H04W72/06 , H04B7/26 , H04L5/00 , H04L27/26 , H04L25/02 , H04L25/03 , H04W16/26 , H04W52/34 , H04W84/04
CPC分类号： H04W72/06 , H04B7/2606 , H04B7/2615 , H04L5/0023 , H04L5/0035 , H04L5/0037 , H04L5/0044 , H04L5/0048 , H04L25/0204 , H04L25/0226 , H04L25/0232 , H04L25/03866 , H04L27/2613 , H04L27/2655 , H04W16/26 , H04W52/34 , H04W84/047
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 an RS to initially access the network, access of the RS by MSs initially accessing the network, methods of 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RS初始接入网络的方法，初始访问网络的MS接入RS的方法，用于分配用于BS，RS和/或MS之间通信的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。

133. 发明授权

US08891481B2 Scattered pilot pattern and channel estimation method for MIMO-OFDM systems 有权
标题翻译： MIMO-OFDM系统的分散导频模式和信道估计方法
公开(公告)号：US08891481B2
公开(公告)日：2014-11-18
申请号：US13617175
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： H04W72/04
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.
摘要翻译：提供了使用用于数据符号和/或导频符号的跳频图案在OFDM（正交频分复用）传输资源中插入数据符号和导频符号的方法和装置。数据符号和导频符号以二维时频模式分配给下行链路（基站到移动台）和上行链路（移动台到基站）传输资源。对于MIMO-OFDM（多输入多输出OFDM）通信系统的每个天线，导频符号以时间 - 频率的散射图案插入，并且数据符号以与其它信号的时间频率相同的跳频图案插入天线。

134. 发明授权

US08588326B2 System and method for mapping symbols for MIMO transmission 有权
标题翻译：用于映射MIMO传输符号的系统和方法
公开(公告)号：US08588326B2
公开(公告)日：2013-11-19
申请号：US11631842
申请日：2005-07-07
申请人： Mahmoud Taherzadehboroujeni , Hosein Nikopourdeilami , Amir Keyvan Khandani , Wen Tong , Ming Jia , Peiying Zhu , Dong-Sheng Yu , Jianglei Ma
发明人： Mahmoud Taherzadehboroujeni , Hosein Nikopourdeilami , Amir Keyvan Khandani , Wen Tong , Ming Jia , Peiying Zhu , Dong-Sheng Yu , Jianglei Ma
IPC分类号： H04B7/24 , H04B7/00 , H04L27/00 , H04L27/04
CPC分类号： H04B7/0669 , H04B7/0413 , H04B7/06 , H04B7/0697 , H04B7/0891 , H04L1/0606 , H04L1/0625 , H04L1/0643 , H04L1/0668 , H04L5/0007 , H04L5/0023 , H04L5/0028 , H04L27/2626
摘要： Methods and devices are provided for MIMO OFDM transmitter and receivers having odd and/even numbers of transmit antennas. Various methods for pre-coding information bits before space time coding (STC) are described for enabling transmission of information bits over all antennas. Methods of decoding received signals that have been pre-coded and STC coded are also provided by embodiments of the invention. Pilot patterns for downlink and uplink transmission between a base station and one or more wireless terminals for three transmit antenna transmitters are also provided. Variable rate codes are provided that combine various fixed rate codes in a manner that results in codes whose rates are dependent on all the various fixed rate codes that are combined.
摘要翻译：为具有奇数和偶数个发射天线的MIMO OFDM发射机和接收机提供了方法和设备。描述了用于在空间时间编码（STC）之前预编码信息比特的各种方法，以使得能够在所有天线上传输信息比特。对已经被预编码和STC编码的接收信号进行解码的方法也由本发明的实施例提供。还提供了用于三个发射天线发射机的基站与一个或多个无线终端之间的下行链路和上行链路传输的导频模式。提供了可变速率代码，其以导致其速率取决于组合的所有各种固定速率代码的代码的方式组合各种固定速率代码。

135. 发明授权

US08542771B2 Methods and systems for orthogonal frequency division multiplexing (OFDM) multiple zone partitioning 有权
标题翻译：用于正交频分复用（OFDM）多区划分的方法和系统
公开(公告)号：US08542771B2
公开(公告)日：2013-09-24
申请号：US13292643
申请日：2011-11-09
申请人： Jianglei Ma , Ming Jia , Wen Tong , Peiying Zhu , Hang Zhang , Mo-Han Fong
发明人： Jianglei Ma , Ming Jia , Wen Tong , Peiying Zhu , Hang Zhang , Mo-Han Fong
IPC分类号： H04L27/00
CPC分类号： H04L5/0051 , H04L1/0003 , H04L1/0009 , H04L1/0618 , H04L5/0007 , H04L5/0023 , H04L5/0048 , H04L5/005 , H04L25/02 , H04L27/2602 , H04L27/2613 , H04L27/2647 , H04W52/325
摘要： Aspects of the invention include methods and devices for inserting data and pilot symbols into Orthogonal Frequency Division Multiplexing (OFDM) frames having a time domain and a frequency domain. A method involves inserting in at least one zone of a first type a two dimensional array of data and pilot symbols in time and frequency and inserting in at least one zone of a second type a two dimensional array of data and pilot symbols in time and frequency. In some implementations the zone of the first type comprises common pilot symbols that can be detected by all receivers receiving the OFDM frame. In some implementations the zone of the second type comprises dedicated pilot symbols that are only detectable by a receiver that is aware of pre-processing used to encode the dedicated pilot symbols.
摘要翻译：本发明的方面包括用于将数据和导频符号插入具有时域和频域的正交频分复用（OFDM）帧的方法和装置。一种方法包括在时间和频率上插入数据和导频符号的二维阵列的第一类型的至少一个区域，并在第二类型的至少一个区域中插入时间和频率的数据和导频符号的二维阵列。在一些实现中，第一类型的区域包括可由接收OFDM帧的所有接收机检测的公共导频符号。在一些实施方式中，第二类型的区域包括专用导频符号，其仅可以被知道用于对专用导频符号进行编码的预处理的接收机检测。

136. 发明授权

US08472423B2 Physical layer structures and initial access schemes in an unsynchronized communication network 有权
标题翻译：物理层结构和不同步通信网络中的初始访问方案
公开(公告)号：US08472423B2
公开(公告)日：2013-06-25
申请号：US12780336
申请日：2010-05-14
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： H04B7/216 , H04N1/00 , H04J11/00
CPC分类号： H04L5/0048 , H04B2201/70701 , H04J11/0069 , H04L5/0007 , H04L25/0224 , H04L27/2655 , H04W74/00
摘要： Physical layer structures and related access schemes for unsynchronized communication networks are provided. Access channel information, preferably including a common synchronization code associated with all transceiver stations in a communication network and a cell-specific synchronization code uniquely associated with one of the transceiver stations, is modulated onto at least one set of time-continuous signal components of a communication signal. In order to access the communication network, communication terminals search for the access channel information in one or more sets of time-continuous signal components and synchronization parameters are then determined based on a location of the access channel information in the sets of time-continuous signal components. Some embodiments of the invention provide for joint frame synchronization and coarse timing synchronization. In further embodiments, the communication signal also includes a scattered pilot channel onto which a portion of the access channel information, preferably the cell-specific synchronization code, is modulated. The pilot channels may then be re-used for initial access operations in addition to its conventional uses for such operations as channel estimation.
摘要翻译：提供了用于非同步通信网络的物理层结构和相关访问方案。优选地包括与通信网络中的所有收发机站相关联的公共同步码和与这些收发信机之一唯一相关联的小区特定同步码的接入信道信息被调制到至少一组时间连续信号分量通信信号。为了访问通信网络，通信终端在一组或多组时间连续信号分量中搜索接入信道信息，然后基于时间连续信号组中的接入信道信息的位置来确定同步参数组件。本发明的一些实施例提供了联合帧同步和粗略定时同步。在另外的实施例中，通信信号还包括一个分散的导频信道，一个部分接入信道信息，最好是小区特定的同步码被调制到该导频信道上。然后，除了用于诸如信道估计之类的操作的常规用途之外，导频信道可以被重新用于初始接入操作。

137. 发明授权

US08462872B2 Scattered pilot pattern and channel estimation method for MIMO-OFDM systems 有权
标题翻译： MIMO-OFDM系统的分散导频模式和信道估计方法
公开(公告)号：US08462872B2
公开(公告)日：2013-06-11
申请号：US13617051
申请日：2012-09-14
申请人： Peiying Zhu , Wen Tong , Jianglei Ma , Ming Jia
发明人： Peiying Zhu , Wen Tong , Jianglei Ma , Ming Jia
IPC分类号： H04L1/02 , H04B7/02
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 base 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.
摘要翻译：提供了使用用于数据符号和/或导频符号的跳频图案在OFDM（正交频分复用）传输资源中插入数据符号和导频符号的方法和装置。数据符号和导频符号分配给二维时频模式的下行链路（基站到移动台）和上行链路（移动台到基站）的传输资源。对于MIMO-OFDM（多输入多输出OFDM）通信系统的每个天线，导频符号以时间 - 频率的散射图案插入，并且数据符号以与其它信号的时间频率相同的跳频图案插入天线。

138. 发明授权

US08441918B2 System access and synchronization methods for MIMO OFDM communications systems and physical layer packet and preamble design 有权
公开(公告)号：US08441918B2
公开(公告)日：2013-05-14
申请号：US13204238
申请日：2011-08-05
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.

139. 发明授权

US08325857B2 Modulation division multiple access 有权
标题翻译：调制分多址
公开(公告)号：US08325857B2
公开(公告)日：2012-12-04
申请号：US13349169
申请日：2012-01-12
申请人： Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong , Curt Dodd
发明人： Ming Jia , Jianglei Ma , Peiying Zhu , Wen Tong , Curt Dodd
IPC分类号： H03D1/00
CPC分类号： H03C3/00 , H04L25/0226 , H04L27/3488
摘要： The present invention employs hierarchical modulation to simultaneously transmit information on different modulation layers using a carrier RF signal. Initially, first data to be transmitted is assigned to a first modulation layer and second data is assigned to a second modulation layer. In one embodiment of the present invention, the first and second data are assigned based on reliability criteria. The first and second modulation layers are hierarchical modulation layers of the carrier RF signal. Once assigned, the first data is transmitted using the first modulation layer of the carrier RF signal and the second data is transmitted using the second modulation layer of the carrier RF signal. In one embodiment of the present invention, information may be transmitted to one end user using one modulation layer, and information may be transmitted to a different end user using a different modulation layer.
摘要翻译：本发明采用层次调制，使用载波RF信号同时发送不同调制层上的信息。首先，要发送的第一数据被分配给第一调制层，并且第二数据被分配给第二调制层。在本发明的一个实施例中，基于可靠性标准来分配第一和第二数据。第一和第二调制层是载波RF信号的分层调制层。一旦被分配，使用载波RF信号的第一调制层发送第一数据，并且使用载波RF信号的第二调制层发送第二数据。在本发明的一个实施例中，可以使用一个调制层向一个终端用户发送信息，并且可以使用不同的调制层向不同的终端用户发送信息。

140. 发明申请

US20120281676A1 SOFT HANDOFF IN OFDMA SYSTEM 有权
公开(公告)号：US20120281676A1
公开(公告)日：2012-11-08
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.

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