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公开(公告)号：US10411846B1
公开(公告)日：2019-09-10
申请号：US14981603
申请日：2015-12-28
Applicant: Marvell International Ltd.
Inventor： Hongyuan Zhang , Hui-Ling Lou , Rohit U. Nabar
Abstract: The present disclosure includes systems and techniques relating to wireless local area network devices. A described technique include accessing a data stream intended for transmission to a single wireless communication device; multiplexing the data stream to two or more radio pathways to produce a data packet; generating, via the two or more radio pathways, two or more different portions of the data packet based on an aggregated capacity of two or more wireless channels that are associated with the two or more radio pathways, the two or more radio pathways being respectively configured to use two or more groups of orthogonal frequency division multiplexing (OFDM) subcarriers to generate the two or more different portions of the data packet; and transmitting the data packet to the single wireless communication device by concurrent transmissions of the two or more different portions via the two or more wireless channels.
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公开(公告)号：US10405265B1
公开(公告)日：2019-09-03
申请号：US15374786
申请日：2016-12-09
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Lei Wang , Jinjing Jiang , Hongyuan Zhang , Hui-Ling Lou
Abstract: The present disclosure includes systems and techniques relating to controlling access to a shared communication medium in a wireless communication system. In some implementations, a first communication device associated with a first basic service set (BSS) identified by a first BSS indicator receives a data unit transmitted by a second communication device. The data unit includes (i) a second BSS indicator indicating a second BSS associated with the second communication device and (ii) a duration indicator indicating a duration of time for which the shared communication medium is expected to be busy. An inter-BSS channel access counter is set based on the duration of time indicated by the duration indicator if the second BSS is different from the first BSS. An intra-BSS channel access counter is set based on the duration of time indicated by the duration indicator if the second BSS is the same as the first BSS.
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公开(公告)号：US10251065B1
公开(公告)日：2019-04-02
申请号：US15291818
申请日：2016-10-12
Applicant: Marvell International Ltd.
Inventor： Jinjing Jiang , Liwen Chu , Yakun Sun , Lei Wang , Hongyuan Zhang , Hui-Ling Lou
IPC: H04W16/02 , H04W52/36 , H04L12/741 , H04W84/12
Abstract: A first communication device maintains respective spatial reuse information for respective pairs of second communication devices, the respective spatial reuse information for determining whether the first communication device can simultaneously transmit during respective transmissions between the respective pairs of second communication devices. The first communication device determines whether the first communication device can transmit a spatial reuse transmission to a third communication device simultaneously with one or more ongoing transmissions between one or more pairs of second communication devices using the spatial reuse information. Responsive to determining that the first communication device can transmit the spatial reuse transmission, the first communication device transmits a packet to the third communication device simultaneously with the one or more ongoing transmissions between one or more pairs of second communication devices.
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公开(公告)号：US10244536B1
公开(公告)日：2019-03-26
申请号：US15692979
申请日：2017-08-31
Applicant: Marvell International Ltd.
Inventor： Jinjing Jiang , Liwen Chu , Lei Wang , Hongyuan Zhang , Hui-Ling Lou
Abstract: In a method for determining whether a communication device can transmit via a first communication channel, the communication device receives a packet via a second communication channel and sets a network allocation vector (NAV) timer corresponding to the second communication channel using duration information included in the header of the packet. The communication device determines whether the second communication channel overlaps in frequency with a first communication channel. If the second communication channel overlaps the first communication channel, the communication device is not permitted to transmit via the first communication channel when the NAV timer is not zero. If the second communication channel does not overlap the first communication channel, the communication device is permitted to transmit via the second communication channel even when the NAV timer is not zero.
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公开(公告)号：US10243711B1
公开(公告)日：2019-03-26
申请号：US15334550
申请日：2016-10-26
Applicant: Marvell International Ltd.
Inventor： Rui Cao , Xiayu Zheng , Hongyuan Zhang , Hui-Ling Lou , Liwen Chu , Yakun Sun
Abstract: A first communication device receives, from a second communication device, a synchronization frame having an allocation indicator that indicates a non-overlapping allocation of pilot tones. The first communication device generates a first data frame that comprises a plurality of orthogonal frequency division multiplexing (OFDM) symbols of a non-legacy training field portion, the plurality of OFDM symbols including only pilot tones corresponding to the non-overlapping allocation of pilot tones. The first communication device transmits, in response to the synchronization frame and via a multiple input, multiple output (MIMO) communication channel, the first data frame to the second communication device simultaneously with a transmission of a second data frame by a third communication device via the MIMO communication channel, wherein corresponding OFDM symbols of respective non-legacy training field portions of the first data frame and the second data frame include non-overlapping pilot tones according to the non-overlapping allocation.
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Patent Agency Ranking
公开(公告)号：US10225338B1
公开(公告)日：2019-03-05
申请号：US14687705
申请日：2015-04-15
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Sagar Tamhane , Sarang Shrikrishna Wagholikar , Hongyuan Zhang , Hui-Ling Lou
Abstract: A method for discovering devices in a peer to peer (P2P) wireless communication network is described. During a search state of a first communication device, a probe request is transmitted by the first communication device on a first channel included in a plurality of channels. During the search state, a probe response transmitted by a second communication device on the first channel is received by the first communication device. In response to the probe response, a ranging exchange with the second communication device is performed by the first communication device.
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公开(公告)号：US10212730B1
公开(公告)日：2019-02-19
申请号：US15488162
申请日：2017-04-14
Applicant: Marvell International Ltd.
Inventor： Liwen Chu , Yakun Sun , Lei Wang , Jinjing Jiang , Hongyuan Zhang , Hui-Ling Lou
Abstract: Systems and techniques relating to partial AID length change notification include: transmitting, to one or more wireless devices within a wireless communication system, a first frame including an indication of a partial association identifier (AID) length and an indication of a target time at which the one or more wireless devices within the wireless communication system will utilize the indicated partial AID length; and transmitting, to the one or more wireless devices within a wireless communication system, one or more additional frames before the target time is reached, where each of the one or more additional frames include the indication of the partial AID length and the indication of the target time.
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公开(公告)号：US10201009B1
公开(公告)日：2019-02-05
申请号：US15236230
申请日：2016-08-12
Applicant: Marvell International Ltd.
Inventor： Lei Wang , Liwen Chu , Jinjing Jiang , Yakun Sun , Hongyuan Zhang , Hui-Ling Lou
Abstract: A channel access timer at a communication device is set to a duration for which a shared communication medium is expected to be busy in a basic service set (BSS) heard by the communication device. The channel access timer is counted down. Before the channel access timer reaches zero, respective indications of respective contention free period durations in multiple basic service sets (BSSs) heard by the communication device are recorded in a BSS record maintained by the communication device. Recording the respective indications includes recording, for each particular BSS of the multiple BSSs, (i) an identifier of the particular BSS and (ii) an offset value corresponding to an offset of an end of a contention free period in the particular BSS from an end of a contention free period in the BSS based on which the channel access timer is currently set at the communication device.
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公开(公告)号：US10187497B1
公开(公告)日：2019-01-22
申请号：US15379027
申请日：2016-12-14
Applicant: Marvell International Ltd.
Inventor： Yakun Sun , Hongyuan Zhang , Lei Wang , Liwen Chu , Jinjing Jiang , Hui-Ling Lou
Abstract: Embodiments described herein provide a method for providing a physical-layer control mechanism in accordance with a wireless local area network communication protocol allowing a high data rate. At a wireless receiver, a physical-layer data frame may be received compliant with the wireless local area network communication protocol. When the physical-layer data frame includes only one data unit, a length of an enhanced directional multi-gigabit header from a header associated with the physical-layer data frame may be obtained, and the enhanced directional multi-gigabit header from the physical-layer data frame may be enhanced based on the length. When the physical-layer data frame includes more than one data unit, a first length of a first data unit may be obtained from a first header associated with the first data unit, and the first data unit may be identified from the data frame based on the first length.
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公开(公告)号：US09991941B1
公开(公告)日：2018-06-05
申请号：US14451248
申请日：2014-08-04
Applicant: MARVELL INTERNATIONAL LTD.
Inventor： Songping Wu , Manyuan Shen , Quan Zhou , Hongyuan Zhang , Hui-Ling Lou
IPC: H04B7/06 , H04B7/0417 , H01Q3/40 , H01Q3/26
CPC classification number: H04B7/0617 , H01Q3/2605 , H01Q3/40 , H04B7/0417 , H04B7/0634 , H04B7/088
Abstract: A plurality of received signals are received at a first communication device, the plurality of received signals corresponding to at least one training signal having been transmitted by a second communication device a plurality of times via a plurality of antennas by the second communication device applying a respective antenna weight vector from a plurality of different antenna weight vectors each time the at least one training signal is transmitted. The first communication device generates a transmitter antenna weight vector based on a mathematical combination of at least i) the plurality of received signals, ii) the antenna weight vectors applied by the second communication device when transmitting the at least one training signal the plurality of times, and iii) the at least one training signal. The first communication device transmits the transmitter antenna weight vector to the second communication device.
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