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公开(公告)号：US11881870B2
公开(公告)日：2024-01-23
申请号：US17856645
申请日：2022-07-01
发明人： Guido Montorsi , Sergio Benedetto , Wei Lin , Yan Xin
CPC分类号： H03M13/118 , H03M13/616
摘要： A low-density parity-check (LDPC) code encoding method and a communication apparatus are described that provide increased redundant bits through retransmission in an IR-HARQ mechanism, so as to decrease a channel coding rate, and improve decoding performance of an LDPC code. A check matrix of the LDPC code is used as a basic matrix, and the basic matrix is extended to obtain a mother matrix compatible with a plurality of code rates. During LDPC encoding, a transmit device reads, from the mother matrix, a check matrix corresponding to a required code rate, and performs LDPC encoding on an information bit sequence based on the read check matrix. LDPC encoding is performed on the information bit sequence by using check matrices of different sizes, to obtain different quantities of redundant bits.
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公开(公告)号：US20230189015A1
公开(公告)日：2023-06-15
申请号：US18165050
申请日：2023-02-06
发明人： Mengyao Ma , Sheng Sun , Yan Xin
摘要： A method for performing a central coordination function includes that when a first central coordinator node cannot perform a central coordination function, a candidate central coordinator node may send, to another node, a first change request message used to request to change a node parameter, and receive a change request response message of the first change request message sent by the another node.
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公开(公告)号：US11606164B2
公开(公告)日：2023-03-14
申请号：US17466895
申请日：2021-09-03
发明人： Yan Xin , Osama Aboul-Magd , Jung Hoon Suh
摘要： Methods and devices for transmitting data in an Orthogonal Frequency-Division Multiple Access (OFDMA) wireless local area network, comprising: selecting, for a first resource unit assigned to the target station, a first modulation type; selecting, for a second resource unit assigned to the target station, a second modulation type different from the first modulation type; and modulating coded data and mapping the modulated data onto subcarriers associated with the assigned resource units based on the respective modulation types selected for each of the assigned resource units.
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公开(公告)号：US20230008045A1
公开(公告)日：2023-01-12
申请号：US17815383
申请日：2022-07-27
发明人： Xiao Han , Chenlong Jia , Yan Xin
摘要： Embodiments of this application relate to the communications field, and in particular, to an information sending/receiving method and apparatus in the communications field. The information receiving method includes: determining an information receiving time based on any two of a time division duplex sector sweep acknowledgement frame count index, a count index, and a time division duplex sector sweep frame count index, duration of a time division duplex sector sweep frame, and duration of a time division duplex sector sweep acknowledgement frame; and receiving information at the determined information receiving time. According to the information receiving/sending method provided in the embodiments of this application, the information sending apparatus can send information at an accurate information sending time, the information receiving apparatus can receive the information at an accurate information receiving time, and system communication can be normally performed.
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公开(公告)号：US11552726B2
公开(公告)日：2023-01-10
申请号：US17466895
申请日：2021-09-03
发明人： Yan Xin , Osama Aboul-Magd , Jung Hoon Suh
摘要： Methods and devices for transmitting data in an Orthogonal Frequency-Division Multiple Access (OFDMA) wireless local area network, comprising: selecting, for a first resource unit assigned to the target station, a first modulation type; selecting, for a second resource unit assigned to the target station, a second modulation type different from the first modulation type; and modulating coded data and mapping the modulated data onto subcarriers associated with the assigned resource units based on the respective modulation types selected for each of the assigned resource units.
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公开(公告)号：US20220124810A1
公开(公告)日：2022-04-21
申请号：US17565100
申请日：2021-12-29
发明人： Jiayin Zhang , Lei Huang , Yingpei Lin , Yan Xin
摘要： A method and system for LBT or CCA threshold setting for directional reception and transmission are provided. In an embodiment, a method in a wireless device for determining if a channel is clear in an unlicensed band channel in a wireless network includes detecting, with the wireless device, an energy along a first beamforming direction. The method also includes determining, with the wireless device, an energy detection threshold. The method also includes determining, with the wireless device, whether the unlicensed band channel is clear in at least the first receiving direction according to the energy and the energy detection threshold.
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公开(公告)号：US11251841B2
公开(公告)日：2022-02-15
申请号：US16856652
申请日：2020-04-23
发明人： Jung Hoon Suh , Osama Aboul-Magd , Yan Xin
摘要： Disclosed herein are devices, systems and methods between a between a plurality of collaborating Access Points (APs) and a receiving station (STA) operating in a wireless local area network (WLAN). The method include the steps of: transmitting, by each AP in the plurality of collaborating APs, a data frame to the receiving STA, each data frame has a preamble portion, the preamble portion including a signal (SIG) field, and the SIG field has a subfield including information representative of a total number of spatial streams transmitted by the plurality of collaborating APs.
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公开(公告)号：US11102049B2
公开(公告)日：2021-08-24
申请号：US16725128
申请日：2019-12-23
发明人： Guido Montorsi , Sergio Benedetto , Yan Xin , Min Yan , Wei Lin
IPC分类号： H04L27/34
摘要： Methods and apparatus for facilitating wireless communication using digital Quadrature Amplitude Modulation are disclosed. A wireless communication device utilizes a signal constellation for quadrature modulating a signal for transmission or quadrature demodulating a received signal. The signal constellation includes multiple constellation symbols and associated bit sequences, which can be translated there between. Specific signal constellations are disclosed.
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公开(公告)号：US10567210B2
公开(公告)日：2020-02-18
申请号：US15729309
申请日：2017-10-10
发明人： Guido Montorsi , Sergio Benedetto , Yan Xin , Min Yan
摘要： Methods and apparatus for facilitating wireless communication using digital Quadrature Amplitude Modulation are disclosed. A mapping module electronic component of a wireless communication device utilizes a signal constellation for quadrature modulating a signal for transmission or quadrature demodulating a received signal. The signal constellation includes multiple constellation symbols and associated bit sequences. Specific signal constellations are disclosed. The signal constellations may be obtained through an optimization procedure which accounts for both phase noise and power amplifier nonlinearity.
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公开(公告)号：US09894594B2
公开(公告)日：2018-02-13
申请号：US14830488
申请日：2015-08-19
发明人： Sheng Sun , Osama Aboul-Magd , Jung Hoon Suh , Yan Xin , Kwok Shum Au
摘要： A method for operating a first access point of a first plurality of access points comprising access points participating in cumulative beacon operations includes generating a cumulative beacon including basic service set identifiers (BSSIDs) and service set identifiers (SSIDs) of each access point in the first plurality of access points, and sending the cumulative beacon.
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