公开(公告)号：US20160080351A1

公开(公告)日：2016-03-17

申请号：US14949293

申请日：2015-11-23

Applicant: STMICROELECTRONICS, INC.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04L29/06 ,  H04W12/06

CPC classification number: H04L63/08 ,  H04L63/0892 ,  H04L63/105 ,  H04L63/18 ,  H04W12/06 ,  H04W84/12

Abstract: A wireless local area network system establishes a PASSPOINT™ connection between a mobile station and a hotspot using an enhanced single SSID method or an enhanced dual SSID method. In the dual SSID method, an access point associates and authenticates a mobile device to a secondary SSID of the access point during enrollment and provisioning. After enrollment, the access point authenticates the mobile station to a primary SSID of the access point using the credential that the mobile station received from an online sign-up (“OSU”) server in connection with the secondary SSID. In the single SSID method, an access point performs two levels of authentication. During authentication, communications are limited to an 802.1x controlled port running on the mobile station and access point. After a first authentication, communications between the OSU server and the mobile station are unblocked. After the second authentication, all traffic from the mobile station is unblocked.

Abstract translation: 无线局域网系统使用增强型单SSID方法或增强型双SSID方法在移动台和热点之间建立PASSPOINT TM连接。 在双SSID方法中，接入点在注册和配置期间将移动设备与接入点的辅助SSID相关联并将其认证。 在注册之后，接入点使用移动台从在线注册（“OSU”）服务器接收到的与辅助SSID相关联的凭证将移动台认证为接入点的主SSID。 在单个SSID方法中，接入点执行两个级别的认证。 在认证期间，通信仅限于在移动台和接入点上运行的802.1x控制端口。 在第一次认证之后，OSU服务器和移动台之间的通信被解除封锁。 在第二次认证之后，来自移动台的所有业务都被解除封锁。

公开(公告)号：US09191889B2

公开(公告)日：2015-11-17

申请号：US13952397

申请日：2013-07-26

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W52/02 ,  H04W74/04 ,  H04W72/04

CPC classification number: H04W52/0206 ,  H04W52/0216 ,  H04W72/0446 ,  H04W74/04 ,  Y02D70/142

Abstract: An access point (AP) associated with a several mobile stations (STAs) implements a slot-based power save poll (PS-Poll) method. The AP divides a slot-based access period into multiple time slots and allocates each time slot to either a STA determined to have slot-based PS-Poll capabilities or a STA determined to have buffered data present at the AP. The AP creates a traffic indication map (TIM) having a number of bits equal to the number of stations associated with the AP, and then transmits a beacon including the TIM. The TIM indicates to a slot-based PS-Poll capable STA which time slots are assigned to a selected set of associated stations. After receiving the beacon from the AP, the STA refrains from attempting to communicate with the AP outside the time slot assigned to the STA, yet transmits information to the AP during the time slot assigned to the STA.

Abstract translation: 与几个移动站（STA）相关联的接入点（AP）实现基于时隙的省电轮询（PS-Poll）方法。 AP将基于时隙的接入周期划分成多个时隙，并且将每个时隙分配给被确定为具有基于时隙的PS轮询功能的STA或被确定为具有存在于AP的缓冲数据的STA。 AP创建具有等于与AP关联的站的数量的位数的流量指示图（TIM），然后发送包括TIM的信标。 TIM向基于时隙的PS-Poll功能STA指示哪些时隙被分配给所选择的一组相关联的站。 在从AP接收到信标之后，STA不试图在分配给STA的时隙之外与AP进行通信，而是在分配给STA的时隙内向AP发送信息。

公开(公告)号：US20140029512A1

公开(公告)日：2014-01-30

申请号：US13685308

申请日：2012-11-26

Applicant: STMICROELECTRONICS, INC.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W12/06

CPC classification number: H04L63/08 ,  H04L63/0892 ,  H04L63/105 ,  H04L63/18 ,  H04W12/06 ,  H04W84/12

Abstract: A wireless local area network system establishes a PASSPOINT™ connection between a mobile station and a hotspot using an enhanced single SSID method or an enhanced dual SSID method. In the dual SSID method, an access point associates and authenticates a mobile device to a secondary SSID of the access point during enrollment and provisioning. After enrollment, the access point authenticates the mobile station to a primary SSID of the access point using the credential that the mobile station received from an online sign-up (“OSU”) server in connection with the secondary SSID. In the single SSID method, an access point performs two levels of authentication. During authentication, communications are limited to an 802.1x controlled port running on the mobile station and access point. After a first authentication, communications between the OSU server and the mobile station are unblocked. After the second authentication, all traffic from the mobile station is unblocked.

Abstract translation: 无线局域网系统使用增强的单个SSID方法或增强型双SSID方法在移动台和热点之间建立PASSPOINT TM连接。 在双SSID方法中，接入点在注册和配置期间将移动设备与接入点的辅助SSID相关联并将其认证。 在注册之后，接入点使用移动台从在线注册（“OSU”）服务器接收到的与辅助SSID相关联的凭证将移动台认证为接入点的主SSID。 在单个SSID方法中，接入点执行两个级别的认证。 在认证期间，通信仅限于在移动台和接入点上运行的802.1x控制端口。 在第一次认证之后，OSU服务器和移动台之间的通信被解除封锁。 在第二次认证之后，来自移动台的所有业务都被解除封锁。

公开(公告)号：US20140029499A1

公开(公告)日：2014-01-30

申请号：US13952397

申请日：2013-07-26

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W52/02

CPC classification number: H04W52/0206 ,  H04W52/0216 ,  H04W72/0446 ,  H04W74/04 ,  Y02D70/142

Abstract: An access point (AP) associated with a several mobile stations (STAs) implements a slot-based power save poll (PS-Poll) method. The AP divides a slot-based access period into multiple time slots and allocates each time slot to either a STA determined to have slot-based PS-Poll capabilities or a STA determined to have buffered data present at the AP. The AP creates a traffic indication map (TIM) having a number of bits equal to the number of stations associated with the AP, and then transmits a beacon including the TIM. The TIM indicates to a slot-based PS-Poll capable STA which time slots are assigned to a selected set of associated stations. After receiving the beacon from the AP, the STA refrains from attempting to communicate with the AP outside the time slot assigned to the STA, yet transmits information to the AP during the time slot assigned to the STA.

Abstract translation: 与几个移动站（STA）相关联的接入点（AP）实现基于时隙的省电轮询（PS-Poll）方法。 AP将基于时隙的接入周期划分成多个时隙，并且将每个时隙分配给被确定为具有基于时隙的PS轮询功能的STA或被确定为具有存在于AP的缓冲数据的STA。 AP创建具有等于与AP关联的站的数量的位数的流量指示图（TIM），然后发送包括TIM的信标。 TIM向基于时隙的PS-Poll功能STA指示哪些时隙被分配给所选择的一组相关联的站。 在从AP接收到信标之后，STA不试图在分配给STA的时隙之外与AP进行通信，而是在分配给STA的时隙内向AP发送信息。

公开(公告)号：US20130155930A1

公开(公告)日：2013-06-20

申请号：US13710282

申请日：2012-12-10

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W52/02

CPC classification number: H04W52/0206 ,  H04W52/0219 ,  Y02D70/142

Abstract: Methods and systems are disclosed for reduced power consumption in communication networks, including sensor networks implemented according to IEEE 802.11ah, by organizing stations into groups having long sleep periods. By organizing the stations of the network into groups, the access point can match each group's traffic identification map with its target beacon transmit time. One embodiment organizes the stations sequentially by AID numbers. Other embodiments organize the stations by similar power save requirements and/or nearby geographical location. Forms of an Extended Traffic Identification Map are matched with an awaken Target Beacon Transmit Time of the group.

Abstract translation: 公开的方法和系统通过将站组织成具有长睡眠周期的群组来降低通信网络中的功耗，包括根据IEEE 802.11ah实现的传感器网络。 通过将网络组合成组，接入点可以将每个组的流量识别图与其目标信标发送时间相匹配。 一个实施例按照AID号顺序组织站。 其他实施例通过类似的省电要求和/或附近的地理位置组织站。 扩展流量识别图的形式与组的唤醒目标信标发送时间相匹配。

公开(公告)号：US09980219B2

公开(公告)日：2018-05-22

申请号：US15808592

申请日：2017-11-09

Applicant: STMICROELECTRONICS, INC.

Inventor： Liwen Chu ,  George A. Vlantis

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

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：US09826434B2

公开(公告)日：2017-11-21

申请号：US13710321

申请日：2012-12-10

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W28/20 ,  H04W28/22

CPC classification number: H04W28/20

Abstract: Methods and systems are disclosed for the operation of wireless communication networks, in which communication channels can have possibly overlapping bandwidths of different sizes, including sensor networks operating by the IEEE 802.11ah standard. A first method of signaling to negotiate the channel bandwidth conveys the needed information in the SIG field of the PPDUs of duplicate RTS/CTS frames, and uses the SIG field of PPDUs of duplicated data, control and management frames to perform transmit opportunity protection. A second method of signaling to negotiate the channel bandwidth conveys the needed information in the scrambling sequence field of PPDUs of duplicate RTS, and uses the scrambling sequence field of PPDUs of duplicated data, control and management frames to perform transmit opportunity protection.

公开(公告)号：US09326234B2

公开(公告)日：2016-04-26

申请号：US13710282

申请日：2012-12-10

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: H04W52/02 ,  H04W52/14

CPC classification number: H04W52/0206 ,  H04W52/0219 ,  Y02D70/142

Abstract: Methods and systems are disclosed for reduced power consumption in communication networks, including sensor networks implemented according to IEEE 802.11ah, by organizing stations into groups having long sleep periods. By organizing the stations of the network into groups, the access point can match each group's traffic identification map with its target beacon transmit time. One embodiment organizes the stations sequentially by AID numbers. Other embodiments organize the stations by similar power save requirements and/or nearby geographical location. Forms of an Extended Traffic Identification Map are matched with an awaken Target Beacon Transmit Time of the group.

Abstract translation: 公开的方法和系统通过将站组织成具有长睡眠周期的群组来降低通信网络中的功耗，包括根据IEEE 802.11ah实现的传感器网络。 通过将网络组合成组，接入点可以将每个组的流量识别图与其目标信标发送时间相匹配。 一个实施例按照AID号顺序组织站。 其他实施例通过类似的省电要求和/或附近的地理位置组织站。 扩展流量识别图的形式与组的唤醒目标信标发送时间相匹配。

公开(公告)号：US08934390B2

公开(公告)日：2015-01-13

申请号：US13631284

申请日：2012-09-28

Applicant: STMicroelectronics, Inc.

Inventor： Liwen Chu ,  George A. Vlantis

IPC: G08C17/00 ,  G01R31/08 ,  G06F11/00 ,  G08C15/00 ,  H04J1/16 ,  H04J3/14 ,  H04L1/00 ,  H04L12/26 ,  H04L12/28 ,  H04J3/00 ,  H04L12/413

CPC classification number: H04W52/0216 ,  Y02D70/122 ,  Y02D70/142

Abstract: Enhanced low power medium access (LPMA) processes involve the enhanced LPMA STA indicating low power capabilities during association and being allocated an AID. The AID(s) for one or a group of enhanced LPMA STA(s) are included in one TIM sent during a different BEACON interval than the AID(s) for another or another group of enhanced LPMA STA(s). In addition, or alternatively, the AID(s) for enhanced LPMA STA(s) are located at an edge of the AID set within a TIM, a portion of the TIM that may be easily truncated and therefore not sent. The enhanced LPMA STAs and associated access point negotiate unique offset and sleepinterval periods for polling or data uplink by the enhanced LPMA STAs.

Abstract translation: 增强的低功率介质访问（LPMA）处理涉及增强的LPMA STA，其指示关联期间的低功率能力并且被分配AID。 一个或一组增强型LPMA STA的AID包括在与另一组或另一组增强型LPMA STA的AID不同的BEACON间隔期间发送的一个TIM中。 另外或替代地，用于增强的LPMA STA的AID位于TIM内的AID集合的边缘，该TIM的一部分可以容易地被截断，因此不被发送。 增强的LPMA STA和相关联的接入点通过增强的LPMA STA协商轮询或数据上行链路的唯一偏移和休眠间隔周期。

公开(公告)号：US08913607B2

公开(公告)日：2014-12-16

申请号：US13739857

申请日：2013-01-11

Applicant: STMicroelectronics, Inc. ,  STMicroelectronics S.r.l.

Inventor： Liwen Chu ,  George Vlantis ,  Vincenzo Scarpa

IPC: H04L12/28 ,  H04L12/50 ,  H04W84/18 ,  H04W72/12 ,  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.

Abstract translation: 在无线网状网络中向信标帧和对等链路动作帧添加高吞吐量能力元素使得能够利用所需特征而无需进一步修改网络。 可以为网格网络中的高吞吐量网格点保护，空时块代码（STBC）操作和20/40 MHz操作选择建立规则。 然而，PSMP（省电多轮询）和PCO（分阶段共存操作）等功能被禁止实施以防止冲突。