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公开(公告)号：US11546114B2
公开(公告)日：2023-01-03
申请号：US16868661
申请日：2020-05-07
Applicant: Keyvan Zarifi , Javad Abdoli
Inventor： Keyvan Zarifi , Javad Abdoli
Abstract: Aspects of the present application provide methods and devices in a communication network that aid in implementing sounding reference signal (SRS) measurement by multiple cells (i.e. serving cells and non-serving cells, also known as “neighbor cells”) as well as NR LMUs.
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公开(公告)号：US11700102B2
公开(公告)日：2023-07-11
申请号：US16937823
申请日：2020-07-24
Applicant: Sanjeewa Herath , Javad Abdoli
Inventor： Sanjeewa Herath , Javad Abdoli
CPC classification number: H04L5/0055 , H04L5/0007 , H04L5/0042 , H04L5/0094 , H04L27/2604
Abstract: Systems and methods for transmitting uplink control information, for example ACK/NACK, while in RRC_inactive state, are provided. Uplink control information is transmitted while in RRC_INACTIVE state by transmitting a sequence from a set of possible sequences to convey the uplink control information, the transmitted sequence associated with a value of the uplink control information. The sequence is asynchronously transmitted. Signalling may be used to configure a transmission resource within which to transmit the sequence, wherein the transmission resource has a time duration that is longer than a time duration to transmit the sequence. This has the effect of introducing a gap following sequence transmission that can ensure the sequence transmission does not interfere with a data transmission.
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公开(公告)号：US11038641B2
公开(公告)日：2021-06-15
申请号：US15374065
申请日：2016-12-09
Applicant: Yu Cao , Javad Abdoli , Jianglei Ma
Inventor： Yu Cao , Javad Abdoli , Jianglei Ma
Abstract: Systems and methods are provided in which uplink transmission of pilot uses time-frequency resources that overlap with time-resources for the uplink transmission of data, by the same UE or different UEs. This can result in a decrease in pilot overhead, or if longer pilot sequences are used, can result in a decrease in collision probability. In a group-based approach, UEs are organized into groups, and each group is allocated the same resources for pilot and data.
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公开(公告)号：US12295058B2
公开(公告)日：2025-05-06
申请号：US17582557
申请日：2022-01-24
Applicant: Javad Abdoli , Sanjeewa Herath
Inventor： Javad Abdoli , Sanjeewa Herath
Abstract: Some aspects of the present disclosure introduce a new downlink (DL) bandwidth part (BWP) and a new uplink (UL) BWP for communication in the RRC_INACTIVE state. In addition, aspects of the disclosure also provide for configuring generic parameters of the BWP, which include, but not limited to, frequency location, bandwidth, subcarrier spacing (SCS), and cyclic prefix (CP). Some aspects of the present disclosure may support a reinterpretation of generic parameters of a BWP, for example which may be configured for the RRC_CONNECTED state, to be used in the RRC_INACTIVE state. Some aspects of the present disclosure are directed to implicit DL BWP switching in the RRC_INACTIVE state where no BWP identifier (ID) indication is needed as part of the switching mechanism.
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公开(公告)号：US10098121B2
公开(公告)日：2018-10-09
申请号：US15055146
申请日：2016-02-26
Applicant: Javad Abdoli , Ming Jia , Jianglei Ma
Inventor： Javad Abdoli , Ming Jia , Jianglei Ma
Abstract: 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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Patent Agency Ranking
公开(公告)号：US10033550B2
公开(公告)日：2018-07-24
申请号：US15076128
申请日：2016-03-21
Applicant: Javad Abdoli , Ming Jia
Inventor： Javad Abdoli , Ming Jia
Abstract: Systems and methods for detecting potentially active user equipment (UE) in a network are provided. A set of potentially active UEs is detected using an iterative method. In a first iteration UE detection is performed using compressed sensing (CS) based on first pilot sequences to detect a first set of potentially active UEs. Channel estimation is then performed for the first set of potentially active UEs. In subsequent iterations, UE detection is performed using CS to detect another set, typically reduced in size, of potentially active UEs using results of the channel estimation from the previous iteration. Channel estimation is then again performed for the new set of potentially active UEs. After the last iteration, the set of potentially active UEs detected in the last iteration is output as the determined set of potentially active UEs along with channel estimates for the set of potentially active UEs determined in last iteration.
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公开(公告)号：US20160353471A1
公开(公告)日：2016-12-01
申请号：US15167477
申请日：2016-05-27
Applicant: Ming Jia , Jianglei Ma , Javad Abdoli
Inventor： Ming Jia , Jianglei Ma , Javad Abdoli
CPC classification number: H04L5/0007 , H04B1/707 , H04B1/71072 , H04B7/0413 , H04B2201/709709 , H04J11/0026 , H04J11/004 , H04L5/0026
Abstract: Methods, devices and systems for encoding and transmitting data in a wireless communications system and, in particular, for unscheduled data transmissions including low data rate transmissions. The method for transmitting data in a wireless network includes mapping data according to a predefined sequence pattern from a group of sequence patterns to provide a spreading sequence that includes multiple non-zero elements and that is enabled to partially collide in the wireless network with other spreading sequences that have been mapped according to other sequence patterns from the group; and transmitting the spreading sequence. Multiple sequences may be received by a network node and decoded using successive interference cancellation (SIC) techniques.
Abstract translation: 用于在无线通信系统中编码和传输数据的方法，设备和系统，特别是用于包括低数据速率传输的非预定数据传输。 用于在无线网络中传输数据的方法包括根据来自一组序列模式的预定义序列模式映射数据，以提供包括多个非零元素的扩展序列，并且能够在无线网络中部分地与其他扩展 已经根据组中的其他序列模式映射的序列; 并发送扩展序列。 多个序列可以由网络节点接收并且使用连续干扰消除（SIC）技术进行解码。
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公开(公告)号：US11070245B1
公开(公告)日：2021-07-20
申请号：US16999747
申请日：2020-08-21
Applicant: Sanjeewa Herath , Monirosharieh Vameghestahbanati , Javad Abdoli
Inventor： Sanjeewa Herath , Monirosharieh Vameghestahbanati , Javad Abdoli
Abstract: A transmission method, and corresponding transmitter are provided that use a combination of sparse symbol mapping with non-sparse spreading. This can be used for a low-PAPR multiple access scheme where good performance is achieved by sparse domain multi-user detection. The provided method uses per-frequency block time-domain non-sparse spreading across sparse blocks which provides PAPR reduction. Sparsity patterns are partitioned into groups that allows PAPR reduction. The method may be used to support the transmission of a single-carrier signal, e.g. DFT-spread signal, to provide PAPR reduction. More generally the provided method can use any low-PAPR waveform, for example any single-carrier waveform or any single-subcarrier waveform.
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公开(公告)号：US10128897B2
公开(公告)日：2018-11-13
申请号：US15165249
申请日：2016-05-26
Applicant: Javad Abdoli , Ming Jia
Inventor： Javad Abdoli , Ming Jia
Abstract: A two-phase approach to machine-type communications is provided. In a first phase, for activity detection, at least one symbol is transmitted using a long signature. During a second phase, for data transmission, information-carrying symbols are transmitted using a short spreading signature. Activity detection performance is enhanced through the use of a longer spreading signature.
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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
Applicant: Javad Abdoli , Ming Jia , Jianglei Ma
Inventor： Javad Abdoli , Ming Jia , Jianglei Ma
CPC classification number: H04W72/0466 , H04B1/71072 , H04J13/0003 , H04W72/0413 , H04W74/0825
Abstract: 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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