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1. 发明申请

WO2019032399A1 MULTI-USER NULL DATA PACKET (NDP) RANGING 审中-公开
公开(公告)号：WO2019032399A1
公开(公告)日：2019-02-14
申请号：PCT/US2018/045182
申请日：2018-08-03
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , ZHANG, Hongyuan , BERGER, Christian, R. , GRANDHE, Niranjan , SRINIVASA, Sudhir , LOU, Hui-Ling
发明人： CHU, Liwen , ZHANG, Hongyuan , BERGER, Christian, R. , GRANDHE, Niranjan , SRINIVASA, Sudhir , LOU, Hui-Ling
IPC分类号： H04W64/00
摘要： A first communication device prompts a plurality of second communication devices to transmit, during a contiguous time period reserved for a range measurement exchange, respective first null data packets (NDPs) at respective times. The first communication device receives first NDPs from at least some of the second communication devices during the contiguous time period, and transmits one or more second NDPs to the plurality of second communication devices. The first communication device uses reception of the first NDPs and transmission of the one or more second NDPs to determine respective ranges between the first communication device and respective second communication devices.

2. 发明申请

WO2019194856A1 BASIC SERVICE SET (BSS) COLOR IN NULL DATA PACKET (NDP) RANGING 审中-公开
公开(公告)号：WO2019194856A1
公开(公告)日：2019-10-10
申请号：PCT/US2018/044684
申请日：2018-07-31
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , BERGER, Christian R. , GRANDHE, Niranjan , ZHANG, Hongyuan , LOU, Hui-Ling
发明人： CHU, Liwen , BERGER, Christian R. , GRANDHE, Niranjan , ZHANG, Hongyuan , LOU, Hui-Ling
IPC分类号： H04W24/00 , H04W88/00
摘要： A communication device determines an identifier of a wireless network with which the communication device is not associated. While the communication device is not associated with the wireless network, the communication device participates in a ranging procedure with an access point (AP) of the wireless network. The ranging procedure is for estimating a distance between the communication device and the AP based on measuring times of flight of transmissions between the communication device and the AP. Participating in the ranging procedure includes: the communication device transmitting a packet to the AP as part of the ranging procedure. The packet includes a PHY preamble, and the PHY preamble includes a signal field. The signal field includes a wireless network identifier subfield set to the identifier of the wireless network.

3. 发明申请

WO2018165599A1 SYSTEMS AND METHODS FOR SEGMENTATION AND REASSEMBLY OF DATA FRAMES IN 802.11 WIRELESS LOCAL AREA NETWORSKS 审中-公开
公开(公告)号：WO2018165599A1
公开(公告)日：2018-09-13
申请号：PCT/US2018/021824
申请日：2018-03-09
申请人： MARVELL WORLD TRADE LTD. , JIANG, Jinjin , CHU, Liwen , ZHANG, Hongyuan , LOU, Hui-Ling
发明人： JIANG, Jinjin , CHU, Liwen , ZHANG, Hongyuan , LOU, Hui-Ling
IPC分类号： H04L12/805 , H04L12/801
摘要： Embodiments described herein provide a method for fragmenting and reassembling data frames on a medium access control (MAC) layer in a wireless local area network. A datagram is received from an application running on a first network device, for transmission over a wireless communication link in the wireless local area network. A negotiation request is initiated with a second network device for determining whether both the first network device and the second network device have enhanced directional multi-gigabit capability (EMDG) for data segmentation and reassembly. When both devices have EMDG capability and the size of the datagram exceeds the maximum size defined by the wireless local area network transmission protocol, the datagram is segmented into a plurality of transmission data units on the MAC layer.

4. 发明申请

WO2017070393A1 ACKNOWLEDGMENT DATA UNIT FOR MULTIPLE UPLINK DATA UNITS 审中-公开
标题翻译：用于多个上行数据单元的确认数据单元
公开(公告)号：WO2017070393A1
公开(公告)日：2017-04-27
申请号：PCT/US2016/057978
申请日：2016-10-20
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , WANG, Lei , ZHANG, Hongyuan , JIANG, Jinjing , LOU, Hui-Ling
发明人： CHU, Liwen , WANG, Lei , ZHANG, Hongyuan , JIANG, Jinjing , LOU, Hui-Ling
IPC分类号： H04L1/16 , H04L1/18 , H04L1/00 , H04L5/00
CPC分类号： H04W76/15 , H04L1/1614 , H04L1/1671 , H04L1/1854 , H04L5/0055 , H04L2001/0093 , H04W84/12
摘要： A method for simultaneously communicating with multiple communication devices in a wireless local area network is described. Multiple uplink data units are received that are simultaneously transmitted by multiple second communication devices. The multiple uplink data units include a management data unit and a traffic data unit. An acknowledgment data unit is generated to acknowledge receipt of the multiple data units. The acknowledgment data unit includes (i) an indication that indicates that the acknowledgment data unit is intended for the multiple second communication devices, and (ii) respective acknowledgment information fields for the multiple second communication devices. The respective acknowledgment information fields include a first acknowledgment information field for the management data unit and a second acknowledgment information field for the traffic data unit. The acknowledgment data unit is caused to be transmitted from the first communication device to the multiple second communication devices.
摘要翻译：描述了用于同时与无线局域网中的多个通信设备进行通信的方法。接收由多个第二通信设备同时发送的多个上行链路数据单元。多个上行链路数据单元包括管理数据单元和业务数据单元。生成确认数据单元以确认收到多个数据单元。确认数据单元包括（i）指示确认数据单元是针对多个第二通信设备的指示，以及（ii）多个第二通信设备的相应确认信息字段。各个确认信息字段包括管理数据单元的第一确认信息字段和业务数据单元的第二确认信息字段。使确认数据单元从第一通信设备传送到多个第二通信设备。

5. 发明申请

WO2015168639A1 MULTIPLE USER ALLOCATION SIGNALING IN A WIRELESS COMMUNICATION NETWORK 审中-公开
标题翻译：无线通信网络中的多用户分配信令
公开(公告)号：WO2015168639A1
公开(公告)日：2015-11-05
申请号：PCT/US2015/028920
申请日：2015-05-01
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , ZHANG, Hongyuan , LOU, Hui-Ling , WANG, Lei , SUN, Yakun
发明人： CHU, Liwen , ZHANG, Hongyuan , LOU, Hui-Ling , WANG, Lei , SUN, Yakun
IPC分类号： H04L5/00 , H04L27/26
CPC分类号： H04W72/0406 , H04L5/0007 , H04L5/0023 , H04L5/0039 , H04L5/0078 , H04L5/0089 , H04L5/0094 , H04L27/2602 , H04W56/00 , H04W84/12
摘要： A respective primary sub-channel block is statically allocated to each of the two or more communication devices in an orthogonal frequency division multiple access (OFDMA) group of communication devices. The respective statically allocated primary sub-channel blocks remain allocated to the second communication devices for transmission of at least two PHY data units. At least some of remaining sub-channel blocks are dynamically allocated among the two or more communication devices for transmission of each of the at least two PHY data units. Indications of the respective sub-channel blocks allocated to the two or more communication devices. A physical layer (PHY) data unit is transmitted to the two or more communication devices or is received from the two or more communication devices. The PHY data unit includes respective orthogonal frequency division multiplexing (OFDM) data units transmitted using respective sub-channel blocks allocated to the two or more communication devices.
摘要翻译：相应的主要子信道块被静态地分配给正交频分多址（OFDMA）通信设备组中的两个或更多个通信设备中的每一个。相应的静态分配的主子信道块保持分配给第二通信设备以传输至少两个PHY数据单元。在两个或更多个通信设备中动态地分配剩余的子信道块中的至少一些，用于传输至少两个PHY数据单元中的每一个。分配给两个或更多个通信设备的各个子信道块的指示。物理层（PHY）数据单元被发送到两个或更多个通信设备，或者从两个或更多个通信设备接收。 PHY数据单元包括使用分配给两个或更多个通信设备的各个子信道块发送的各个正交频分复用（OFDM）数据单元。

6. 发明申请

WO2016077490A1 ACKNOWLEDGMENT FOR MULTIPLE USER COMMUNICATION IN A WLAN 审中-公开
标题翻译：在WLAN中进行多用户通信的确认
公开(公告)号：WO2016077490A1
公开(公告)日：2016-05-19
申请号：PCT/US2015/060211
申请日：2015-11-11
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , ZHANG, Hongyuan , WANG, Lei , LOU, Hui-ling , JIANG, Jinjing
发明人： CHU, Liwen , ZHANG, Hongyuan , WANG, Lei , LOU, Hui-ling , JIANG, Jinjing
IPC分类号： H04L5/00 , H04B7/00
CPC分类号： H04W72/0453 , H04B7/0452 , H04L5/0007 , H04L5/0037 , H04L5/0055 , H04L5/0094 , H04L27/2608 , H04W84/12
摘要： A first communication device generates a multi-user (MU) physical layer (PHY) data unit having independent data for multiple second communication devices. The first communication device also generates respective control frames to prompt second communication devices to transmit an orthogonal frequency division multiple access (OFDMA) PHY data unit to acknowledge that the second communication devices received the MU PHY data unit. The MU PHY data unit and the respective control frames are transmitted to the multiple second communication devices. The first communication device receives the OFDMA PHY data unit from at least some of the second communication devices. The first communication device processes the OFDMA PHY data unit to determine whether the multiple second communication devices received the MU PHY data unit.
摘要翻译：第一通信设备生成具有用于多个第二通信设备的独立数据的多用户（MU）物理层（PHY）数据单元。第一通信设备还产生相应的控制帧，以提示第二通信设备发送正交频分多址（OFDMA）PHY数据单元，以确认第二通信设备接收到MU PHY数据单元。 MU PHY数据单元和各个控制帧被发送到多个第二通信设备。第一通信设备从至少一些第二通信设备接收OFDMA PHY数据单元。第一通信设备处理OFDMA PHY数据单元以确定多个第二通信设备是否接收到MU PHY数据单元。

7. 发明申请

WO2019182685A1 SYSTEMS AND METHODS FOR GENERATING AND TRANSMITTING SHORT LOW POWER WAKE-UP REQUEST (WUR) FRAMES IN A WIRELESS COMMUNICATION SYSTEM 审中-公开
公开(公告)号：WO2019182685A1
公开(公告)日：2019-09-26
申请号：PCT/US2019/016066
申请日：2019-01-31
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , ZHANG, Hongyuan , LOU, Hui-ling
发明人： CHU, Liwen , ZHANG, Hongyuan , LOU, Hui-ling
IPC分类号： H04W52/02
摘要： Embodiments described herein provide a method for creating a low power wake-up radio frame. The method comprises generating, at an access point, a wake-up radio frame for transmission to one or more client stations, determining whether the wake-up radio frame is to be transmitted inside or outside a basic service set associated with the access point, the basic service set having a basic service set identifier that is used to identify the access point. And in response to determining that the wake-up radio frame is to be transmitted outside the basic service set, computing, a target frame check sequence for the wake-up radio frame without using the basic service set identifier associated with the basic service set, appending the target frame check sequence to the wake-up radio frame; and transmitting, to one or more client stations, the wake-up radio frame with the appended target frame check sequence.

8. 发明申请

WO2019152564A1 OPERATION WITH BANDWIDTH-LIMITED DEVICES IN A WIRELESS NETWORK 审中-公开
公开(公告)号：WO2019152564A1
公开(公告)日：2019-08-08
申请号：PCT/US2019/015921
申请日：2019-01-30
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , WANG, Lei , ZHANG, Hongyuan , SUN, Yakun , JIANG, Jinjing , LOU, Hui-Ling
发明人： CHU, Liwen , WANG, Lei , ZHANG, Hongyuan , SUN, Yakun , JIANG, Jinjing , LOU, Hui-Ling
IPC分类号： H04L29/08 , H04W72/04 , H04W84/12 , H04L5/00
摘要： A first communication device allocates respective portions of a communication channel, that includes at least one primary component channel and one or more non-primary component channels, to a plurality of second communication devices, including a bandwidth-limited second communication device configured to operate with a maximum bandwidth that is less than a full bandwidth of the communication channel. The bandwidth-limited second communication device is operating in a particular component channel, and allocation of a frequency portion to the bandwidth-limited second communication device is restricted to the particular component channel. The first communication device transmits a data unit that includes one or both of: respective data for the second communication devices in the respective frequency portions allocated to the respective second communication devices, and one or more trigger frames to prompt transmission of respective data by the second communication devices in the respective frequency portions allocated to the respective second communication devices.

9. 发明申请

WO2018200682A1 LOW POWER WAKEUP IN A WIRELESS NETWORK 审中-公开
公开(公告)号：WO2018200682A1
公开(公告)日：2018-11-01
申请号：PCT/US2018/029375
申请日：2018-04-25
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , JIANG, Jinjing , MU, Hua , ZHANG, Hongyuan , LOU, Hui-Ling
发明人： CHU, Liwen , JIANG, Jinjing , MU, Hua , ZHANG, Hongyuan , LOU, Hui-Ling
IPC分类号： H04W52/02
摘要： A first communication device transmits a first packet that includes a wakeup request packet configured to prompt a wakeup radio at a second communication device to prompt a network interface device of the second communication device to transition from a low power state to an active state. The first communication device measures a delay period after an end of transmission of the first packet. The delay period corresponds to a time required for the network interface device of the second communication device to transition from the low power state to the active state. After at least the delay period, the first communication device transmits the second packet.

10. 发明申请

WO2015073543A1 METHOD AND APPARATUS FOR SYNCHRONIZING TIMING AMONG DEVICES IN A WIRELESS LOCAL AREA NETWORK (WLAN) 审中-公开
标题翻译：用于在无线局域网（WLAN）中同步设备的时序的方法和装置
公开(公告)号：WO2015073543A1
公开(公告)日：2015-05-21
申请号：PCT/US2014/065228
申请日：2014-11-12
申请人： MARVELL WORLD TRADE LTD. , CHU, Liwen , LOU, Hui-Ling , ZHANG, Hongyuan
发明人： CHU, Liwen , LOU, Hui-Ling , ZHANG, Hongyuan
IPC分类号： H04W56/00
CPC分类号： H04W56/001 , H04W40/244 , H04W56/0015 , H04W72/0446 , H04W84/12
摘要： A wireless communication device including a first media access control device and a first transceiver. The first media access control device is configured to selectively generate a first timestamp having a first length and a second timestamp having a second length. The first timestamp indicates a first synchronization time of the wireless communication device, the second timestamp indicates only a first portion of the first synchronization time, and the first synchronization time is used by a client station to synchronize timing between the wireless communication device and the client station. The first media access control device is further configured to generate a beacon including either the first timestamp or the second timestamp, and an indication of whether the beacon includes the first timestamp or the second timestamp. The first transceiver is configured to transmit the beacon from the wireless communication device to the client station.
摘要翻译：一种无线通信设备，包括第一媒体接入控制设备和第一收发机。第一媒体访问控制设备被配置为选择性地生成具有第一长度的第一时间戳和具有第二长度的第二时间戳。第一时间戳指示无线通信设备的第一同步时间，第二时间戳仅指示第一同步时间的第一部分，并且客户端使用第一同步时间来同步无线通信设备和客户端之间的定时站。第一媒体访问控制设备还被配置为生成包括第一时间戳或第二时间戳的信标，以及信标是否包括第一时间戳或第二时间戳的指示。第一收发器被配置为将信标从无线通信设备发送到客户站。

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