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公开(公告)号：US20120163282A1
公开(公告)日：2012-06-28
申请号：US13126226
申请日：2009-10-30
申请人： Hua Xu , Jianglei Ma , Hang Zhang , Ming Jia , Peiying Zhu , Lai King Tee , Jun Li
发明人： Hua Xu , Jianglei Ma , Hang Zhang , Ming Jia , Peiying Zhu , Lai King Tee , Jun Li
CPC分类号： H04W4/06 , H04B7/2606 , H04L25/023 , H04L27/2647 , H04W84/047 , H04W92/045
摘要： The present invention provides a solution to improve coverage and cell edge performance in a mobile user communication system is the use of fixed relays, which are pieces of infrastructure without a wired backhaul connection. The relays transmit or “relay” downlink messages between the base station (BS) and mobile stations (MSs) through a multi-hop communication. The present invention is a method and system for supporting a multiple user mobile broadband communication network that includes relay techniques suitable for user equipment in the downlink communication to the user equipment.
摘要翻译： 本发明提供了一种在移动用户通信系统中提高覆盖和小区边缘性能的解决方案，即使用固定继电器，固定继电器是没有有线回程连接的基础设施。 中继站通过多跳通信在基站（BS）和移动站（MS）之间发送或“中继”下行链路消息。 本发明是一种用于支持多用户移动宽带通信网络的方法和系统，该多用户移动宽带通信网络包括适用于向用户设备的下行链路通信中的用户设备的中继技术。
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公开(公告)号：US20090060081A1
公开(公告)日：2009-03-05
申请号：US11887114
申请日：2006-03-30
申请人： Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
发明人： Hang Zhang , Jianglei Ma , Ming Jia , Sophie Vrzic , Mo-Han Fong , Dong-Sheng Yu , Hua Xu
IPC分类号： H04B7/02
CPC分类号： H04W72/0446 , H04B7/02 , H04B7/0669 , H04B7/12 , H04L1/0003 , H04L1/0009 , H04L1/0026 , H04L1/0071 , H04L1/0656 , H04L1/1812 , H04L1/1887 , H04L5/0007 , H04L5/0023 , H04L5/0039 , H04L5/0041 , H04L5/0042 , H04L5/0046 , H04L5/0048 , H04L5/0051 , H04L5/0053 , H04L5/006 , H04L5/0085 , H04L5/0096 , H04L25/0226 , H04L25/0228 , H04L25/03057 , H04L27/2627 , H04L27/2655 , H04L65/1066 , H04W72/0453
摘要： Systems and methods for OFDM channelization are provided that allow for the co-existence of sub-band channels and diversity channels. Methods of defining diversity sub-channels and sub-band sub-channels are provided, and systematic channel definition and labeling schemes are provided.
摘要翻译： 提供了用于OFDM信道化的系统和方法，其允许子带信道和分集信道的共存。 提供了确定分集子信道和子带子信道的方法，并提供了系统信道定义和标签方案。
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公开(公告)号：US11533211B2
公开(公告)日：2022-12-20
申请号：US17209430
申请日：2021-03-23
申请人： Ming Jia , Jianglei Ma
发明人： Ming Jia , Jianglei Ma
摘要： A system and method of DFT-S-OFDM modulation is provided that uses a set of frequency domain patterns. For a given transmitter, for a set of DFT-S-OFDM symbols, the frequency domain pattern changes according to a time domain hopping pattern. Advantageously, the time domain hopping patterns are defined to allow only a certain amount of overlap, for example for only one DFT-S-OFDM symbol, between any two time domain hopping patterns. This functions to reduce the effect of a collision, when two transmitters use the same frequency pattern, they will do so only for part of the overall transmission. Optionally, frequency domain spectral spreading is used in the transmitter. This can further reduce the PAPR. In the receiver, successive interference cancellation may be employed to reduce the effect of colliding transmissions.
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公开(公告)号：US11177995B2
公开(公告)日：2021-11-16
申请号：US16782453
申请日：2020-02-05
申请人： Nuwan Suresh Ferdinand , Ming Jia , Jianglei Ma
发明人： Nuwan Suresh Ferdinand , Ming Jia , Jianglei Ma
摘要： Aspects of the present application provide methods and devices for time domain implementation of a single carrier waveform such as single carrier quadrature amplitude modulation (QAM) DFT-s-OFDM and single carrier Offset QAM (OQAM). A time domain implementation allows flexible symbol lengths, lower implementation complexity as a large IDFT operation is not required in the time domain and support for variable cyclic prefix (CP) length. An OQAM implementation utilizes a pre-processing step to convert a K complex QAM symbol sequence into a 2K OQAM symbol sequence and generates a sequence for transmission in the time domain as opposed to the frequency domain.
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公开(公告)号：US11050532B2
公开(公告)日：2021-06-29
申请号：US16369023
申请日：2019-03-29
申请人： Ming Jia , Jianglei Ma , Alireza Bayesteh , Sanjeewa Herath
发明人： Ming Jia , Jianglei Ma , Alireza Bayesteh , Sanjeewa Herath
摘要： A bit-level operation may be implemented prior to modulation and resource element (RE) mapping in order to generate a NoMA transmission using standard (QAM, QPSK, BPSK, etc.) modulators. In this way, the bit-level operation is exploited to achieve the benefits of NoMA (e.g., improved spectral efficiency, reduced overhead, etc.) at significantly less signal processing and hardware implementation complexity. The bit-level operation is specifically designed to produce an output bit-stream that is longer than the input bit-stream, and that includes output bit-values that are computed as a function of the input bit-values such that when the output bit-stream is subjected to modulation (e.g., m-ary QAM, QPSK, BPSK), the resulting symbols emulate a spreading operation that would otherwise have been generated from the input bit-stream, either by a NoMA-specific modulator or by a symbol-domain spreading operation.
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公开(公告)号：US10454625B2
公开(公告)日：2019-10-22
申请号：US15873478
申请日：2018-01-17
申请人： Ming Jia , Jianglei Ma
发明人： Ming Jia , Jianglei Ma
摘要： Methods are disclosed herein for generating and using outer codes based on non-equal length code blocks. In one embodiment, the outer code has a length equal to the length of the longest code block. This can be achieved by padding shorter code blocks such that they are also of equal length to the longest code block. The padding may be a standardized pseudo-random pattern or a standardized repeating pattern. In another embodiment, the outer code has a length shorter than the length of the longest code block. If a code block is received in error it may be recovered by using one or more of: the first outer code block, information bits of other code blocks and the parity bits of the failed code block.
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公开(公告)号：US10448368B2
公开(公告)日：2019-10-15
申请号：US15783515
申请日：2017-10-13
申请人： Alireza Bayesteh , Jianglei Ma , Ming Jia
发明人： Alireza Bayesteh , Jianglei Ma , Ming Jia
摘要： Communication resources for grant-free transmission are assigned to a User Equipment (UE) in a communication system. A diversity channel for uplink grant-free data transmission includes uplink grant free transmission resources assigned to the UE. The uplink grant-free transmission resources include one or more positions corresponding to partitions of an access region and one or more positions corresponding to resource elements (REs) in each partition of the access region. At a UE, an uplink initial data transmission and a subsequent transmission are transmitted by the UE in the diversity channel without receiving grant information from a network equipment. At a network equipment, the uplink initial data transmission and the subsequent transmission are received in the diversity channel without transmitting grant information to the UE.
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公开(公告)号：US10355901B2
公开(公告)日：2019-07-16
申请号：US15782400
申请日：2017-10-12
申请人： Ming Jia , Jianglei Ma
发明人： Ming Jia , Jianglei Ma
摘要： Aspects of the description provide a method and devices to allow frequency domain spectral shaping (FDSS) to be used on both a reference sequence and data to enable low PAPR. Being able to use FDSS on both the reference sequence and data allows the FDSS to be transparent to the receiver. The method comprises obtaining a first sequence, wherein the first sequence is a base sequence of a set of base sequences, the set of base sequences comprising sub group base sequences, the first sequence obtained by cyclically repeating the sub group sequences at least once; and transmitting, by the device, a reference signal based on the first sequence.
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公开(公告)号：US20170251479A1
公开(公告)日：2017-08-31
申请号：US15055146
申请日：2016-02-26
申请人： Javad Abdoli , Ming Jia , Jianglei Ma
发明人： Javad Abdoli , Ming Jia , Jianglei Ma
CPC分类号： H04W72/0466 , H04B1/71072 , H04J13/0003 , H04W72/0413 , H04W74/0825
摘要： Methods and devices are disclosed for decoding multiple sparsely encoded data sequences in a wireless communications network. A received signal carrying multiple sparsely encoded data sequences is decoded by selecting a first plurality of the data sequences and performing multi-user decoding on the received signal to decode the first plurality of data sequences. Other data sequences are treated as noise. The plurality of data sequences is selected to meet a collision threshold for the multi-user decoding. Data sequences may be selected based on a collision contribution and signal quality metrics. A modified received signal is generated to remove signals associated with the multiple sparsely encoded data sequences which have been successfully decoded. The method may be performed for additional iterations to select a new plurality of data sequences, and perform the multi-user decoding on the modified received signal to decode additional data sequences, until a stopping condition is met.
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190.发明申请公开(公告)号：US20160365905A1
公开(公告)日：2016-12-15
申请号：US14738144
申请日：2015-06-12
申请人： Hao Hu , Ming Jia , Jianglei Ma
发明人： Hao Hu , Ming Jia , Jianglei Ma
IPC分类号： H04B7/04 , H04L27/34 , H04L25/497
CPC分类号： H04B7/0456 , H04B7/0482 , H04B7/0697 , H04L25/497 , H04L27/3488 , H04L27/3494 , H04W88/02 , H04W88/08
摘要： Methods and systems for transmitting a signal. A first signal from a first device operating in spatial multiplexing transmission is concatenated with a second signal from a second device operating without spatial multiplexing transmission to generate a concatenated signal in a non-linearly superpositioned constellation, in which a portion of the constellation corresponding to the first signal is symmetrical about each of the real and imaginary axes. The concatenated signal is processed according to transmission processing of the second device, to generate a processed signal. The processed signal is transmitted.
摘要翻译： 发送信号的方法和系统。 来自在空间复用传输中工作的第一设备的第一信号与来自不进行空间复用传输的第二设备的第二信号连接，以在非线性叠加星座中生成级联信号，其中星座的一部分对应于 第一个信号是关于每个实数和虚轴对称的。 根据第二设备的传输处理来处理级联的信号，以产生处理的信号。 处理后的信号被发送。
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