公开(公告)号：US10523246B1

公开(公告)日：2019-12-31

申请号：US16144595

申请日：2018-09-27

Applicant: Marvell International Ltd.

Inventor： Hongyuan Zhang ,  Sergey Timofeev ,  Lance Nagamine ,  Tsunglun Yu

IPC: H04B1/00 ,  H04B7/0413 ,  H04B7/0404 ,  H04W88/06

Abstract: The present disclosure describes apparatuses and methods for a configurable wireless communication chip. In some aspects, a wireless communication chip includes multiple radio paths and is capable of operating in a first communication mode that supports communication in non-contiguous segments of bandwidth and a second communication mode that does not support communication in non-contiguous segments of bandwidth. Based on a hardware configuration external to the wireless communication chip, the radio paths can be configured to operate in the first communication mode or the second communication mode. In some cases, the hardware configuration external to the wireless communication chip includes fewer antennas or amplifier paths than radio paths of the chip, such as due to cost or form-factor considerations. In such cases, the wireless communication chip can operate in the second communication mode to implement advanced communication techniques with reduced hardware, enabling flexibility to design lower cost or smaller devices.

公开(公告)号：US10477452B1

公开(公告)日：2019-11-12

申请号：US15446656

申请日：2017-03-01

Applicant: Marvell International LTD.

Inventor： Jinjing Jiang ,  Liwen Chu ,  Lei Wang ,  Yakun Sun ,  Hongyuan Zhang ,  Hui-Ling Lou

IPC: H04W4/00 ,  H04W40/24 ,  H04W72/04 ,  H04W84/10 ,  H04W84/12

Abstract: The present disclosure proposes systems and methods for performing spatial reuse using the following techniques at access points and stations. More specifically, the present disclosure relates to spatial reuse of medium with a spatial reuse opportunity announcement provided to STAs by an AP, opportunistic directional sensing performed by STAs, and a channel access method with a new backoff procedure performed by the STAs. An AP may provision a spatial reuse opportunity announcement in a beacon interval, and STAs may perform opportunistic directional sensing based on the announcement and perform channel access after performing opportunistic directional sensing.

公开(公告)号：US10419143B1

公开(公告)日：2019-09-17

申请号：US15940602

申请日：2018-03-29

Applicant: Marvell International Ltd.

Inventor： Hongyuan Zhang ,  Hui-Ling Lou ,  Rohit U. Nabar

IPC: H04J1/00

Abstract: The present disclosure includes systems and techniques relating to wireless local area network devices. Systems and techniques include multiplexing information for a single wireless communication device onto multiple radio pathways to produce a data packet, operating the multiple radio pathways to generate different portions of the data packet, and transmitting the data packet to the single wireless communication device by concurrent transmissions of the different portions of the data packet over different wireless channels.

公开(公告)号：US10396963B1

公开(公告)日：2019-08-27

申请号：US15709186

申请日：2017-09-19

Applicant: Marvell International Ltd.

Inventor： Liwen Chu ,  Ken Kinwah Ho ,  Seong Yong Park ,  Tianan Tim Ma ,  Hongyuan Zhang

IPC: H04L5/00 ,  H04L1/16 ,  H04W84/12

Abstract: A first communication device generates a packet associated with acknowledgment of frames corresponding to multiple second communication devices. Generating the packet includes generating a frame that includes a field having respective acknowledgment information for the multiple second communication devices in respective subfields. The subfields have a plurality of different formats. The subfields are arranged within the field in groups of adjacent subfields such that each group includes only subfields of a same format and/or includes only subfields corresponding to second communication devices that have communicated to the first communication device a same set of supported formats of the subfields. The first communication device transmits the packet to the multiple second communication devices.

公开(公告)号：US10314025B1

公开(公告)日：2019-06-04

申请号：US15422235

申请日：2017-02-01

Applicant: Marvell International Ltd.

Inventor： Liwen Chu ,  Hongyuan Zhang ,  Yakun Sun ,  Lei Wang ,  Jinjing Jiang ,  Hui-Ling Lou

IPC: H04W72/04 ,  H04L1/16

Abstract: Systems and methods are provided for performing multi-user transmissions across different segments of a transmission medium. A connection between a first access point and a plurality of stations is established; wherein a first station of the plurality of stations detects that a primary channel of communication between the first access point and the plurality of stations is being used for transmission by a second access point. The first access point allocates a transmission channel to the first station to communicate with the first access point. The first access point determines whether an acknowledgement from the first station is received. In response to determining that the acknowledgement has been received, the first access point allocates a resource unit to the first station using the transmission channel. In response to determining that the acknowledgement has not been received, the first access point reallocates the first station to a different transmission channel.

公开(公告)号：US10306603B1

公开(公告)日：2019-05-28

申请号：US15442398

申请日：2017-02-24

Applicant: Marvell International Ltd.

Inventor： Liwen Chu ,  Hongyuan Zhang ,  Lei Wang ,  Yakun Sun ,  Jinjing Jiang ,  Hui-Ling Lou

IPC: H04W28/02 ,  H04W72/04 ,  H04L12/833

Abstract: A method for transmitting a resource request for an uplink (UL) multi-user (MU) transmission is described. A High Throughput (HT) Control field that includes buffer information corresponding to media access control (MAC) protocol data units (MPDUs) that are queued for transmission by a first communication device is generated by the first communication device. The buffer information indicates a number of bytes for the MPDUs that are queued for transmission. A resource request MPDU that includes the HT Control field is generated by the first communication device. The resource request MPDU is transmitted by the first communication device to a second communication device via a wireless communication channel to request an allocation of radio resources for the UL MU transmission by the second communication device.

公开(公告)号：US10264544B1

公开(公告)日：2019-04-16

申请号：US15979100

申请日：2018-05-14

Applicant: Marvell International Ltd.

Inventor： Liwen Chu ,  Hongyuan Zhang ,  Hui-Ling Lou ,  Christian R. Berger ,  Niranjan Grandhe

IPC: H04W64/00 ,  H04L5/00 ,  H04W24/10 ,  H04W72/12 ,  H04W84/12

Abstract: A first communication determines, for a null data packet (NDP) ranging measurement procedure, i) a start time, ii) a time duration of each time slot of a plurality of time slots, and iii) a time interval between adjacent time slots. The first communication device generates one or more packets that include: i) an indication of the start time, ii) an indication of the time duration, and iii) an indication of the time interval, and transmits the one or more packets to multiple second communication devices prior to the NDP ranging measurement procedure. During the NDP ranging measurement procedure, the first communication device transmits a downlink NDP transmission to a group of second communication devices, and receives an uplink multi-user NDP transmission from the group of second communication devices.

公开(公告)号：US10237891B1

公开(公告)日：2019-03-19

申请号：US15438732

申请日：2017-02-21

Applicant: Marvell International Ltd.

Inventor： Liwen Chu ,  Lei Wang ,  Jinjing Jiang ,  Hongyuan Zhang ,  Yakun Sun ,  Hui-Ling Lou

IPC: H04W74/00 ,  H04L29/08 ,  H04W88/10

Abstract: A method for identifying association identifiers (AIDs) for multiple basic service sets (BSSs) supported by a first communication device is described. A reference identifier that indicates a fixed mapping of AIDs to BSS identifiers (BSSIDs) in a multiple-BSSID set is identified by a first communication device. The multiple-BSSID set includes BSSIDs of a first and second BSS. A management frame that includes a maximum BSSID indicator that indicates a maximum size of the multiple-BSSID set, the reference identifier, and a transmitter address of the management frame is generated for a receiver of the management frame to derive a first AID corresponding to the first BSS and a second AID corresponding to the second BSS based on the maximum BSSID indicator, the reference identifier, and the transmitter address. The management frame is transmitted to at least one second communication device associated with one of the first BSS and the second BSS.

公开(公告)号：US10159043B1

公开(公告)日：2018-12-18

申请号：US15221438

申请日：2016-07-27

Applicant: Marvell International Ltd.

Inventor： Rui Cao ,  Yakun Sun ,  Hongyuan Zhang

IPC: H04L27/26 ,  H04W52/02 ,  H04L5/00 ,  H04W84/12

Abstract: The present disclosure includes systems and techniques relating to training sequences used in wireless communication systems. In some implementations, a transmission mode of a transmitting device is determined for transmitting a long training field (LTF) sequence for High Efficiency (HE) wireless local area network (WLAN) communication. Based on the transmission mode, candidate training sequences for the LTF sequence are constructed. Each candidate sequence includes a first number of base sequences and a second number of floating sequences, wherein the base sequences reuse an LTF sequence for Very High Throughput (VHT) WLAN communication. The candidate training sequences are constructed by varying values and locations of the floating sequences. A target training sequence is selected that has a desired peak-to-average power ratio (PAPR) value. The target training sequence is assigned to the transmitting device for transmitting the target training sequence in the LTF for the HE WLAN communication.

公开(公告)号：US10153857B1

公开(公告)日：2018-12-11

申请号：US15096050

申请日：2016-04-11

Applicant: Marvell International Ltd.

Inventor： Liwen Chu ,  Lei Wang ,  Hongyuan Zhang ,  Hui-Ling Lou ,  Jinjing Jiang

IPC: H04J11/00 ,  H04W72/04 ,  H04L5/00 ,  H04W84/12

Abstract: A method for simultaneous communication in a wireless local area network is described. A first control frame is transmitted by a first communication device to a plurality of communication devices, is duplicated across each of a plurality of sub-channels of an orthogonal frequency division multiplexing channel, and indicates that the communication devices are requested to simultaneously transmit respective control frames to the first communication device. Respective control frames are received, including second and third control frames from second and third communication devices, respectively, that are transmitted via a same sub-channel having a smallest bandwidth of the wireless local area network and indicate that at least some of the plurality of sub-channels are available. One of an orthogonal frequency division multiple access data unit and a duplicated legacy data unit is transmitted by the first communication device in response to the control frames via the available sub-channels.