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公开(公告)号:US20210144023A1
公开(公告)日:2021-05-13
申请号:US17152284
申请日:2021-01-19
申请人: Neo Wireless LLC
发明人: Haiming Huang , Xiaodong Li , Titus Lo , Kemin Li
IPC分类号: H04L12/18 , H04N21/2385 , H04N21/262 , H04N21/442 , H04N21/61 , H04N21/658 , H04W72/00 , H04L5/00 , H04L5/14 , H04W52/02
摘要: A mobile station may comprise a receiver configured to receive, from a base station, a broadcast signal indicating a first subframe configuration for use in an uplink direction and a downlink direction and a second subframe configuration for use in at least a downlink direction. The mobile station may be configured to receive first downlink data and transmit first uplink data, during a single subframe of one or more radio frames, using the first subframe configuration. The mobile station may receive second downlink data, during a single subframe of the one or more radio frames, using the second subframe configuration. The first subframe configuration and the second subframe configuration may be different OFDM subframe configurations and a first subframe configured in accordance with the first subframe configuration and a second subframe configured in accordance with the second subframe configuration may have a same duration.
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公开(公告)号:US10862696B2
公开(公告)日:2020-12-08
申请号:US16055873
申请日:2018-08-06
申请人: Neo Wireless LLC
发明人: Haiming Huang , Xiaodong Li , Titus Lo , Kemin Li
IPC分类号: H04L12/18 , H04N21/2385 , H04N21/262 , H04N21/442 , H04N21/61 , H04N21/658 , H04W72/00 , H04L5/00 , H04L5/14 , H04W52/02 , H04L1/00 , H04L1/18 , H04W72/04 , H04W84/04 , H04W92/10
摘要: In a cellular wireless network, methods and apparatus are disclosed for a signal broadcasting scheme that can be individually augmented for users with poor reception. The network employs a first downlink channel for broadcasting data to all mobile stations, a second downlink channel for sending signals to a specific mobile station in a cell, and an uplink channel for feeding back information to the base station. To achieve a certain user reception quality, the system adjusts its broadcasting parameters based on the statistical analysis of the feedback data. If some users still require better reception, the system individually augments their broadcast signals via the second downlink channels. Methods and apparatus are also disclosed for synchronization of data distribution by base stations, which, in part, allows the receivers to combine the receiving signals and improve their reception quality.
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公开(公告)号:US10771302B2
公开(公告)日:2020-09-08
申请号:US15953950
申请日:2018-04-16
申请人: Neo Wireless LLC
发明人: Xiaodong Li , Titus Lo , Kemin Li , Haiming Huang
IPC分类号: H04L12/26 , H04L27/26 , H04L5/00 , H04L25/03 , H04L27/00 , H04B1/707 , H04B1/711 , H04L25/02
摘要: In a broadband wireless communication system, a spread spectrum signal is intentionally overlapped with an OFDM signal, in a time domain, a frequency domain, or both. The OFDM signal, which inherently has a high spectral efficiency, is used for carrying broadband data or control information. The spread spectrum signal, which is designed to have a high spread gain for overcoming severe interference, is used for facilitating system functions such as initial random access, channel probing, or short messaging. Methods and techniques are devised to ensure that the mutual interference between the overlapped signals is minimized to have insignificant impact on either signal and that both signals are detectable with expected performance by a receiver.
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公开(公告)号:US20200187257A1
公开(公告)日:2020-06-11
申请号:US16544201
申请日:2019-08-19
申请人: Neo Wireless LLC
发明人: Xiaodong Li , Titus Lo , Kemin Li , Haiming Huang
摘要: Methods and apparatus in a multi-carrier cellular wireless network with random access improve receiving reliability and reduce interference of uplink signals of a random access, while improving the detection performance of a base station receiver by employing specifically configured ranging signals.
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55.
公开(公告)号:US11979248B2
公开(公告)日:2024-05-07
申请号:US17186306
申请日:2021-02-26
申请人: Neo Wireless LLC
发明人: Haiming Huang , Xiaodong Li , Titus Lo , Kemin Li
IPC分类号: H04L12/18 , H04L5/00 , H04L5/14 , H04N21/2385 , H04N21/262 , H04N21/442 , H04N21/61 , H04N21/658 , H04W52/02 , H04W72/0446 , H04W72/30 , H04L1/00 , H04L1/18 , H04W72/04 , H04W84/04 , H04W92/10
CPC分类号: H04L12/1881 , H04L5/0007 , H04L5/005 , H04L5/14 , H04L12/189 , H04N21/2385 , H04N21/26208 , H04N21/44209 , H04N21/6131 , H04N21/6582 , H04W52/0216 , H04W72/0446 , H04W72/30 , H04L1/0003 , H04L1/0061 , H04L2001/0093 , H04L1/18 , H04W72/04 , H04W84/042 , H04W92/10 , Y02D30/70
摘要: A method for receiving broadcast information in an OFDM communication system may comprise receiving, by a mobile station, a periodically broadcast scheduling message from a base station which indicates for each type of a plurality of types of broadcast information included in broadcast information, a pattern of frames to monitor for the type of broadcast information and indicates a length of time to monitor. The mobile station may monitor for information corresponding to at least one of the plurality of types of broadcast information, based on the periodically broadcast scheduling message.
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公开(公告)号:US11804870B2
公开(公告)日:2023-10-31
申请号:US17845702
申请日:2022-06-21
申请人: NEO WIRELESS LLC
发明人: Xiaodong Li , Titus Lo , Kemin Li , Haiming Huang
CPC分类号: H04B1/707 , H04B1/711 , H04L5/0007 , H04L5/0028 , H04L25/03834 , H04L27/0008 , H04L27/0012 , H04L27/2602 , H04L27/2626 , H04L27/2647 , H04L5/0016 , H04L25/0228 , H04L27/2607 , H04L27/2655
摘要: In a broadband wireless communication system, a spread spectrum signal is intentionally overlapped with an OFDM signal, in a time domain, a frequency domain, or both. The OFDM signal, which inherently has a high spectral efficiency, is used for carrying broadband data or control information. The spread spectrum signal, which is designed to have a high spread gain for overcoming severe interference, is used for facilitating system functions such as initial random access, channel probing, or short messaging. Methods and techniques are devised to ensure that the mutual interference between the overlapped signals is minimized to have insignificant impact on either signal and that both signals are detectable with expected performance by a receiver.
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公开(公告)号:US20220393833A1
公开(公告)日:2022-12-08
申请号:US17884725
申请日:2022-08-10
申请人: NEO WIRELESS LLC
发明人: Xiaodong Li , Haiming Huang , Titus Lo , Ruifeng Wang
摘要: A method and system for minimizing the control overhead in a multi-carrier wireless communication network that utilizes a time-frequency resource is disclosed. In some embodiments, one or more zones in the time-frequency resource are designated for particular applications, such as a zone dedicated for voice-over-IP (VoIP) applications. By grouping applications of a similar type together within a zone, a reduction in the number of bits necessary for mapping a packet stream to a portion of the time-frequency resource can be achieved. In some embodiments, modular coding schemes associated with the packet streams may be selected that further reduce the amount of necessary control information. In some embodiments, packets may be classified for transmission in accordance with application type, QoS parameters, and other properties. In some embodiments, improved control messages may be constructed to facilitate the control process and minimize associated overhead.
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公开(公告)号:US20220352922A1
公开(公告)日:2022-11-03
申请号:US17845702
申请日:2022-06-21
申请人: NEO WIRELESS LLC
发明人: Xiaodong Li , Titus Lo , Kemin Li , Haiming Huang
摘要: In a broadband wireless communication system, a spread spectrum signal is intentionally overlapped with an OFDM signal, in a time domain, a frequency domain, or both. The OFDM signal, which inherently has a high spectral efficiency, is used for carrying broadband data or control information. The spread spectrum signal, which is designed to have a high spread gain for overcoming severe interference, is used for facilitating system functions such as initial random access, channel probing, or short messaging. Methods and techniques are devised to ensure that the mutual interference between the overlapped signals is minimized to have insignificant impact on either signal and that both signals are detectable with expected performance by a receiver.
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公开(公告)号:US20220330243A1
公开(公告)日:2022-10-13
申请号:US17723752
申请日:2022-04-19
申请人: NEO WIRELESS LLC
发明人: Titus Lo , Xiaodong Li
IPC分类号: H04W72/04 , H04W16/14 , H04L5/14 , H04L5/00 , H04L41/04 , H04L41/12 , H04L45/02 , H04W8/00 , H04W24/02 , H04W48/16
摘要: Methods and systems are disclosed for communicating in a wireless communications system utilizing a plurality of frequency bands for downlink (DL) transmission and a plurality of frequency bands for uplink (UL) transmission. In an embodiment, a mobile device receives a DL signal via a DL frequency band. The DL signal contains DL-UL frequency band association information which is used to determine a UL frequency band for UL transmission. The mobile device configures its radio-frequency (RF) circuitry to operate in the UL frequency band for UL transmission.
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60.
公开(公告)号:US20220303971A1
公开(公告)日:2022-09-22
申请号:US17831878
申请日:2022-06-03
申请人: Neo Wireless LLC
发明人: Xiaodong Li , Titus Lo , Kemin Li , Haiming Huang
IPC分类号: H04W72/04 , H04L5/00 , H04L1/00 , H04B7/0413
摘要: An arrangement is disclosed where in a multi-carrier communication system, the modulation scheme, coding attributes, training pilots, and signal power may be adjusted to adapt to channel conditions in order to maximize the overall system capacity and spectral efficiency without wasting radio resources or compromising error probability performance, etc.
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