公开(公告)号：US20140119268A1

公开(公告)日：2014-05-01

申请号：US14148047

申请日：2014-01-06

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W74/04 ,  H04W72/04 ,  H04W72/00

CPC classification number: H04W72/0446 ,  H04L12/43 ,  H04W72/005 ,  H04W74/04

Abstract: Methods and apparatus for implementing a robust unicast/broadcast/multicast protocol are provided. In one aspect, a method of avoiding collision of intra-basic service set unicast, broadcast or multicast transmissions notifies stations in the basic service set of a reserved transmit opportunity for a unicast, broadcast or multicast transmission. Transmissions from at least one station in the basic service set are deferred until after the reserved unicast, broadcast or multicast transmit opportunity.

Abstract translation: 提供了用于实现鲁棒的单播/广播/多播协议的方法和装置。 在一个方面，避免基本内部服务设置单播，广播或多播传输的冲突的方法通知用于单播，广播或多播传输的预留发送机会的基本服务集中的站。 基本服务集中的至少一个站的传输延迟到保留的单播，广播或多播发送机会之后。

公开(公告)号：US20140105098A1

公开(公告)日：2014-04-17

申请号：US14050575

申请日：2013-10-10

Applicant: STMICROELECTRONICS, INC.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04B7/155

CPC classification number: H04B7/15528 ,  H04W28/065

Abstract: A compressed header format is used for messages transmitted in a wireless network. The compressed header includes a first address field and a frame control field including at least one bit specifying whether the first address is for an access point of the wireless communications network. The frame control field may further include at least one additional bit identifying whether the frame is being relayed by a relay node positioned between the access point and a wireless station. The frame control field may further include at least one further bit identifying whether AID is used for the first address field.

Abstract translation: 压缩报头格式用于在无线网络中发送的消息。 压缩报头包括第一地址字段和帧控制字段，该字段包括指定第一地址是否用于无线通信网络的接入点的至少一个比特。 帧控制字段还可以包括至少一个附加位，标识帧是否被位于接入点和无线站之间的中继节点中继。 帧控制字段还可以包括至少一个识别是否将AID用于第一地址字段的另一位。

公开(公告)号：US20140078949A1

公开(公告)日：2014-03-20

申请号：US14025456

申请日：2013-09-12

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W52/02

CPC classification number: H04W52/0209 ,  H04W52/0219 ,  Y02D70/142

Abstract: An additional cyclic redundancy check (CRC) is inserted in IEEE 802.11 beacon or data frames prior to the end of the frame, at a location following information sufficient for the receiving station to determine whether the frame is from an overlapping basic service set or intended for a different station and to extract other necessary or useful information such as a time of the next full beacon. Upon detecting the CRC, the receiving STA can terminate reception of the frame early to conserve power, and then enter a low power operational mode to further conserve power.

Abstract translation: 在足以使接收站确定帧是否来自重叠的基本业务集或旨在为重叠的基本业务集合的信息之后的位置处，在帧的结尾之前的IEEE 802.11信标或数据帧中插入附加的循环冗余校验（CRC） 一个不同的站，并提取其他必要或有用的信息，如下一个完整信标的时间。 在检测到CRC时，接收STA可以提前终止帧的接收以节省功率，然后进入低功率操作模式以进一步节省功率。

公开(公告)号：US20140029597A1

公开(公告)日：2014-01-30

申请号：US13685341

申请日：2012-11-26

Applicant: STMICROELECTRONICS, INC.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W52/02

CPC classification number: H04W52/0209 ,  H04W8/22 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0222 ,  H04W52/0229 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/142

Abstract: A IEEE 802.11 Wireless Local Area Network (WLAN) system of an access point (AP) and one or more stations (STAB) reduces power consumption and increases battery life of power efficient low power STAB by decreasing the amount of time that a power efficient low power STA remains in an awake state. After indicating power efficient low power operation during association with an AP supporting such operation, the power efficient low power STA may enter the doze state from the time that the power efficient low power STA sends a PS-Poll until the power efficient low power STA receives the buffered DATA frame from the AP. While implementing the power efficient PS-Poll method, the AP can send the buffered DATA frame to the STA SIFS after the AP sends an ACK to the received PS-Poll from the STA.

Abstract translation: 接入点（AP）和一个或多个站（STAB）的IEEE 802.11无线局域网（WLAN）系统通过减少功率有效低的时间量来降低功率消耗并增加功率有效的低功率STAB的电池寿命 电源STA保持在唤醒状态。 在与支持这种操作的AP相关联之后指示功率有效的低功率操作之后，功率有效的低功率STA可以从功率有效的低功率STA发送PS-Poll直到功率有效的低功率STA接收到的时候进入打盹状态 来自AP的缓冲的DATA帧。 在实现功率有效的PS-Poll方法时，AP可以在AP从STA发送ACK到接收的PS-Poll之后将缓冲的DATA帧发送到STA SIFS。

公开(公告)号：US09991996B2

公开(公告)日：2018-06-05

申请号：US15006191

申请日：2016-01-26

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04L5/00 ,  H04L1/16 ,  H04W72/12 ,  H04W72/04 ,  H04W74/08 ,  H04W84/12

CPC classification number: H04L5/003 ,  H04L1/16 ,  H04L1/1607 ,  H04L1/1854 ,  H04L5/0007 ,  H04L5/0037 ,  H04W72/04 ,  H04W72/121 ,  H04W72/1289 ,  H04W74/0816 ,  H04W84/12

Abstract: An access point (AP) contends for a medium during a contention period in order to obtain exclusive control of the medium for a certain time period that may include one or more transmission opportunities. The AP and client stations (STAs) communicate during the time period using orthogonal frequency division multiple access (OFDMA) techniques with scheduled use (i.e., allocation) of sub-channels of the medium. The AP controls this scheduling for down-link and up-link communications by sending control signaling to inform the STAs of the resource allocation schedule which specifies STAs involved in the OFDMA communications along with the sub-channel identification bandwidth allocated to each STA. The control signaling may be a combination of physical layer (PHY) and medium access control layer (MAC) communicated information.

公开(公告)号：US09838963B2

公开(公告)日：2017-12-05

申请号：US15365600

申请日：2016-11-30

Applicant: STMICROELECTRONICS, INC.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W52/02 ,  H04W8/22 ,  H04W84/12 ,  H04W88/08 ,  H04W88/02

CPC classification number: H04W52/0209 ,  H04W8/22 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0222 ,  H04W52/0229 ,  H04W84/12 ,  H04W88/02 ,  H04W88/08 ,  Y02D70/00 ,  Y02D70/142

Abstract: A IEEE 802.11 Wireless Local Area Network (WLAN) system of an access point (AP) and one or more stations (STAs) reduces power consumption and increases battery life of power efficient low power STAs by decreasing the amount of time that a power efficient low power STA remains in an awake state. After indicating power efficient low power operation during association with an AP supporting such operation, the power efficient low power STA may enter the doze state from the time that the power efficient low power STA sends a PS-Poll until the power efficient low power STA receives the buffered DATA frame from the AP. While implementing the power efficient PS-Poll method, the AP can send the buffered DATA frame to the STA SIFS after the AP sends an ACK to the received PS-Poll from the STA.

公开(公告)号：US09661573B2

公开(公告)日：2017-05-23

申请号：US14953977

申请日：2015-11-30

Applicant: STMICROELECTRONICS, INC.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W52/02 ,  H04L29/12 ,  H04W8/26 ,  H04W84/12 ,  H04W74/00 ,  H04W74/08 ,  H04W12/06 ,  H04W76/02

CPC classification number: H04W52/0222 ,  H04L29/1232 ,  H04L29/12839 ,  H04L61/2092 ,  H04L61/6022 ,  H04W8/26 ,  H04W12/06 ,  H04W52/0216 ,  H04W74/006 ,  H04W74/08 ,  H04W76/14 ,  H04W84/12 ,  Y02D70/142

Abstract: Multiple virtual MAC addresses may be added to WGA devices that may have different traffic streams to another device that requires different services, thus creating distinct MAC and device level implications. Beamforming training can be done at the device level for all virtual MAC addresses. Wakeup, doze, and ATIM power save can be done at the device level depending on the frames received. Authentication, deauthentication, association, and deassociation can be done variously at both levels. Further MSDUs can be aggregated for the multiple MAC addresses.

公开(公告)号：US09554324B2

公开(公告)日：2017-01-24

申请号：US14051583

申请日：2013-10-11

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W40/24 ,  H04W48/16 ,  H04W8/00 ,  H04W48/12

CPC classification number: H04W48/16 ,  H04W8/005 ,  H04W40/244 ,  H04W40/246 ,  H04W48/12

Abstract: A wireless network access point generates a fast initial link setup (FILS) discovery frame for broadcast to one or more wireless stations. The wireless network access point supports many operating channels including a primary channel. The FILS discovery frame includes a data field populated with an identification of a channel number for that primary channel of the wireless network access point. The FILS discovery frame includes another data field populated with a primary channel operating class identification. The broadcast FILS discovery frame further includes data indicating whether indicating whether multiple BSSIDs are supported. An FD capability field of the FILS discovery frame includes sub-fields indicating one or more of operation channel width, PHY type of the wireless access point, number of spatial streams supported by the wireless access point and multiple BSSIDs support provided by the wireless access point.

Abstract translation: 无线网络接入点生成用于广播到一个或多个无线站的快速初始链路建立（FILS）发现帧。 无线网络接入点支持许多操作信道，包括主信道。 FILS发现帧包括填充有无线网络接入点的主信道的信道号的标识的数据字段。 FILS发现帧包括填充有主信道操作类标识的另一数据字段。 广播FILS发现帧还包括指示是否指示是否支持多个BSSID的数据。 FILS发现帧的FD能力字段包括指示操作信道宽度，无线接入点的PHY类型，无线接入点支持的空闲数量的数量和由无线接入点提供的多个BSSID支持中的一个或多个的子字段 。

公开(公告)号：US09538525B2

公开(公告)日：2017-01-03

申请号：US14148047

申请日：2014-01-06

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W74/04 ,  H04W72/00 ,  H04W72/04 ,  H04L12/43

CPC classification number: H04W72/0446 ,  H04L12/43 ,  H04W72/005 ,  H04W74/04

Abstract: Methods and apparatus for implementing a robust unicast/broadcast/multicast protocol are provided. In one aspect, a method of avoiding collision of intra-basic service set unicast, broadcast or multicast transmissions notifies stations in the basic service set of a reserved transmit opportunity for a unicast, broadcast or multicast transmission. Transmissions from at least one station in the basic service set are deferred until after the reserved unicast, broadcast or multicast transmit opportunity.

Abstract translation: 提供了用于实现鲁棒的单播/广播/多播协议的方法和装置。 在一个方面，避免基本内部服务设置单播，广播或多播传输的冲突的方法通知用于单播，广播或多播传输的预留发送机会的基本服务集中的站。 基本服务集中的至少一个站的传输延迟到保留的单播，广播或多播发送机会之后。

公开(公告)号：US09462538B2

公开(公告)日：2016-10-04

申请号：US14520828

申请日：2014-10-22

Applicant: STMICROELECTRONICS, INC. ,  STMICROELECTRONICS S.R.L.

Inventor： Liwen Chu ,  George A. Vlantis ,  Vincenzo Scarpa

IPC: H04L12/28 ,  H04W48/14 ,  H04W72/12 ,  H04W84/18 ,  H04W40/34 ,  H04W48/08 ,  H04W72/02 ,  H04W84/12 ,  H04W84/22

CPC classification number: H04W48/14 ,  H04W40/34 ,  H04W48/08 ,  H04W72/02 ,  H04W72/1252 ,  H04W84/12 ,  H04W84/18 ,  H04W84/22 ,  Y02D70/142 ,  Y02D70/22

Abstract: The addition of high throughput capability elements to beacon frames and peer link action frames in wireless mesh networks enable the utilization of desirable features without further modifications to the network. Rules can be established for high throughput mesh point protection in a mesh network, Space-time Block Code (STBC) operations and 20/40 MHz operation selections. However, features such as PSMP (power save multi-poll) and PCO (phased coexistence operations) are barred from implementation to prevent collisions.