专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

WO2007124577A1 WLAN AND WWAN CONNECTION MIGRATION METHODS AND APPARATUS 审中-公开
标题翻译： WLAN和WWAN连接移动方法和设备
公开(公告)号：WO2007124577A1
公开(公告)日：2007-11-08
申请号：PCT/CA2007/000713
申请日：2007-04-27
申请人： RESEARCH IN MOTION LIMITED , MCMASTER UNIVERSITY , KEZYS, Vytautas, Robertas , TODD, Terence, D.
发明人： KEZYS, Vytautas, Robertas , TODD, Terence, D.
IPC分类号： H04L12/28 , H04L12/66 , H04L29/02 , H04M11/06 , H04Q7/38
CPC分类号： H04L12/66 , H04W36/14 , H04W36/30 , H04W76/22 , H04W84/12 , H04W92/18
摘要： Intra-enterprise wireless handset (WH) calls between WHs operating in a wireless local area network (WLAN) are established directly between the WHs via a call connection that is maintained within the LAN without being routed through the cellular network (CN). This eliminates the cost of placing and maintaining calls through the CN for intra-enterprise calls, and also enables use of capabilities that are available in the enterprise telecomm equipment. Upon detection of a trigger condition, if and when it is more likely that a complete vertical handover (VHO) may be needed, the call connection between the WHs in the LAN is replaced by one that is routed through the CN. Thereafter, a VHO may occur (if at all) upon detection of a radio handover condition.
摘要翻译：无线局域网（WLAN）之间的企业间无线手机（WH）呼叫直接通过在LAN内维护的呼叫连接在WH之间建立，而不通过蜂窝网络（CN）进行路由。这消除了通过CN拨打和维护用于企业内部呼叫的呼叫的成本，并且还能够使用企业电话设备中可用的功能。在检测到触发条件时，如果可能需要完整的垂直切换（VHO）更可能，LAN中的WH之间的呼叫连接将被通过CN路由的呼叫连接所取代。此后，当检测到无线电切换条件时，可能发生VHO（如果有的话）。

2. 发明申请

WO2007033485A3 CONFERENCING PSTN GATEWAY METHODS AND APPARATUS TO FACILITATE HETEROGENEOUS WIRELESS NETWORK HANDOVERS FOR MOBILE COMMUNICATION DEVICES 审中-公开
公开(公告)号：WO2007033485A3
公开(公告)日：2007-03-29
申请号：PCT/CA2006/001560
申请日：2006-09-22
申请人： RESEARCH IN MOTION LIMITED , MCMASTER UNIVERSITY , KEZYS, Vytautas, Robertas , TODD, Terence, D. , SMADI, Mohammed , ZHAO, Dongmei
发明人： KEZYS, Vytautas, Robertas , TODD, Terence, D. , SMADI, Mohammed , ZHAO, Dongmei
IPC分类号： H04Q7/38 , H04L12/66 , H04L12/28 , H04L29/06 , H04Q7/32
摘要： In one illustrative example, a mobile communication device operating in a wireless local area network (WLAN) of a communication network maintains an inter-enterprise voice call via its WLAN interface (e.g. 802.11/VoIP/SIP) with another communication device in the communication network. Communications of the voice call are maintained solely within the communication network and not routed through a conferencing gateway. During the voice call, a handover of the voice call from the WLAN to a wireless wide area network (WWAN) (e.g. GSM/GPRS) may or may not be required. In response to identifying a handover indication during the voice call, the mobile device causes a request message (e.g. a SIP INVITE message) to be sent over the WWAN to the conferencing gateway for establishing a first connection leg through the WWAN via its WWAN interface with a conference room of the conferencing gateway. The mobile device also causes a re-routing message (e.g. a SIP REFER message) to be sent over the WLAN to the communication device, so that a second connection leg between the communication device and the conference room of the conferencing gateway may be established. The first and the second connection legs are connected together in the conference room of the conferencing gateway for the voice call. Advantageously, inter-enterprise voice calls in the communication network need not unnecessarily and unduly burden the conferencing gateway, unless and until a handover of the voice call between the WLAN and the WWAN is required. Variations and other PSTN conferencing gateway techniques are also described.

3. 发明申请

WO2005094103A1 WIRELESS ACCESS POINT METHODS AND APPARATUS FOR REDUCED POWER CONSUMPTION AND COST 审中-公开
标题翻译：无线接入点方法和降低功耗和成本的方法
公开(公告)号：WO2005094103A1
公开(公告)日：2005-10-06
申请号：PCT/CA2005/000447
申请日：2005-03-24
申请人： RESEARCH IN MOTION LIMITED , MCMASTER UNIVERSITY
发明人： TODD, Terence, D. , KEZYS, Vytautas, Robertas , ZHAO, Dongmei
IPC分类号： H04Q7/32
CPC分类号： H04W52/0216 , H04W74/00 , H04W74/02 , H04W84/12 , Y02D70/1222 , Y02D70/142 , Y02D70/144 , Y02D70/22
摘要： In one illustrative technique, a contention-free period indication is communicated by a wireless access point (AP) (e.g. a battery-powered AP) to a plurality of mobile communication devices within a beacon of a superframe. The contention-free period indication identifies a duration of a contention-free period within which the mobile devices must refrain from communicating through the AP. During each contention period subframe of each superframe, information is communicated to and/or from the mobile devices through a wireless transceiver of the AP. During each power conservation subframe of each superframe, the wireless transceiver is placed into a power conservation mode which is at least part of the contention-free period. Alternatively, or in combination with the wireless transceiver being placed in the power conservation mode, information for the mobile devices may be communicated to and/or from another AP within each relay subframe of each superframe which is at least part of the contention-free period. Advantageously, power consumption may be reduced in the AP and/or a single radio interface may be utilized in the AP for communications. The durations of the power conservation subframe and the other subframes may be variably adjusted to tradeoff power savings with a real-time capacity requirement of the AP.
摘要翻译：在一种说明性技术中，无竞争时段指示由无线接入点（AP）（例如，电池供电的AP）传送到超帧的信标内的多个移动通信设备。无竞争周期指示标识移动设备必须避免通过AP进行通信的无争用时段的持续时间。在每个超帧的每个争用时段子帧期间，信息通过AP的无线收发器被传送到和/或从移动设备传送。在每个超帧的每个功率保存子帧期间，无线收发器被置于至少部分无竞争周期的功率节省模式中。或者，或者与将无线收发机组合放置在功率节省模式中，移动设备的信息可以被传送到每个超帧的每个中继子帧内的另一个AP和/或来自另一个AP，这是至少部分无竞争周期。有利地，AP中的功率消耗可能会降低，和/或可以在AP中利用单个无线电接口进行通信。可以可变地调整功率节省子帧和其他子帧的持续时间，以利用AP的实时容量要求来权衡功率节省。

4. 发明公开

EP1728407A1 WIRELESS ACCESS POINT METHODS AND APPARATUS FOR REDUCED POWER CONSUMPTION AND COST 审中-公开
标题翻译：降低功耗，降低成本的无线接入点的方法和装置
公开(公告)号：EP1728407A1
公开(公告)日：2006-12-06
申请号：EP05714674.8
申请日：2005-03-24
申请人： Research In Motion Limited , McMASTER UNIVERSITY
发明人： TODD, Terence, D. , KEZYS, Vytautas, Robertas , ZHAO, Dongmei
IPC分类号： H04Q7/32 , H04Q7/38 , H04L12/28 , H04L12/12
CPC分类号： H04W52/0216 , H04W74/00 , H04W74/02 , H04W84/12 , Y02D70/1222 , Y02D70/142 , Y02D70/144 , Y02D70/22
摘要： In one illustrative technique, a contention-free period indication is communicated by a wireless access point (AP) (e.g. a battery-powered AP) to a plurality of mobile communication devices within a beacon of a superframe. The contention-free period indication identifies a duration of a contention-free period within which the mobile devices must refrain from communicating through the AP. During each contention period subframe of each superframe, information is communicated to and/or from the mobile devices through a wireless transceiver of the AP. During each power conservation subframe of each superframe, the wireless transceiver is placed into a power conservation mode which is at least part of the contention-free period. Alternatively, or in combination with the wireless transceiver being placed in the power conservation mode, information for the mobile devices may be communicated to and/or from another AP within each relay subframe of each superframe which is at least part of the contention-free period. Advantageously, power consumption may be reduced in the AP and/or a single radio interface may be utilized in the AP for communications. The durations of the power conservation subframe and the other subframes may be variably adjusted to tradeoff power savings with a real-time capacity requirement of the AP.

5. 发明公开

EP1927255A2 CONFERENCING PSTN GATEWAY METHODS AND APPARATUS TO FACILITATE HETEROGENEOUS WIRELESS NETWORK HANDOVERS FOR MOBILE COMMUNICATION DEVICES 审中-公开
标题翻译：会议PSTN网关进程和设备异构无线网络对于移动通信设备HAND OVERS开启时会
公开(公告)号：EP1927255A2
公开(公告)日：2008-06-04
申请号：EP06790726.1
申请日：2006-09-22
申请人： Research In Motion Limited , McMASTER UNIVERSITY
发明人： KEZYS, Vytautas, Robertas , TODD, Terence, D. , SMADI, Mohammed , ZHAO, Dongmei
IPC分类号： H04Q7/38 , H04L12/66 , H04L12/28 , H04L29/06 , H04Q7/32
CPC分类号： H04L12/6418 , H04L29/06027 , H04L65/1083 , H04L65/4038 , H04M7/1235 , H04W36/14 , H04W36/18 , H04W76/10 , H04W76/22 , H04W76/23 , H04W84/12 , H04W88/06 , H04W88/16 , H04W92/02
摘要： A mobile communication device operating in a wireless local area network (WLAN) of a communication network maintains an inter-enterprise voice call via its WLAN interface (e.g. 802.11/VoIP/SIP) with another communication device in the communication network. During the voice call, a handover of the voice call from the WLAN to a wireless wide area network (WWAN) (e.g. GSM/GPRS) is identified. In response to identifying a handover indication, the mobile device causes a request message (e.g. a SIP INVITE message) to be sent over the WWAN to the conferencing gateway for establishing a first connection leg through the WWAN via its WWAN interface with a conference room of the conferencing gateway. The mobile device also causes a re-routing message (e.g. a SIP REFER message) to be sent to the communication device, so that a second connection leg between the communication device and the conference room may be established.

6. 发明公开

EP2014020A1 WLAN AND WWAN CONNECTION MIGRATION METHODS AND APPARATUS 有权
标题翻译： WLAN与WWAN连接迁移过程和装置
公开(公告)号：EP2014020A1
公开(公告)日：2009-01-14
申请号：EP07719639.2
申请日：2007-04-27
申请人： Research in Motion Limited
发明人： KEZYS, Vytautas, Robertas , TODD, Terence, D.
IPC分类号： H04L12/28 , H04L12/66 , H04L29/02 , H04M11/06 , H04Q7/38
CPC分类号： H04L12/66 , H04W36/14 , H04W36/30 , H04W76/22 , H04W84/12 , H04W92/18
摘要： Intra-enterprise wireless handset (WH) calls between WHs operating in a wireless local area network (WLAN) are established directly between the WHs via a call connection that is maintained within the LAN without being routed through the cellular network (CN). This eliminates the cost of placing and maintaining calls through the CN for intra-enterprise calls, and also enables use of capabilities that are available in the enterprise telecomm equipment. Upon detection of a trigger condition, if and when it is more likely that a complete vertical handover (VHO) may be needed, the call connection between the WHs in the LAN is replaced by one that is routed through the CN. Thereafter, a VHO may occur (if at all) upon detection of a radio handover condition.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式