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1. 发明授权

US06982949B2 Vertical roaming in wireless networks through improved wireless network cell boundary detection 有权
标题翻译：通过改进的无线网络单元边界检测在无线网络中垂直漫游
公开(公告)号：US06982949B2
公开(公告)日：2006-01-03
申请号：US10376881
申请日：2003-02-28
申请人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
发明人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
IPC分类号： H04J11/00
CPC分类号： H04W36/30 , H04B2201/70702
摘要： A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.
摘要翻译：一种用于改善不同类型无线网络之间的垂直切换的系统和方法。网络分配向量占用和分组冲突概率被用作服务质量度量，使得垂直切换被延迟，直到实际上有益于服务质量。利用基于傅里叶的技术结合自适应确定的最小操作信号强度阈值来实现垂直切换场景中改进的无线网孔单元边界检测。改进的无线网络小区边界检测能够使来自高质量服务网络的垂直切换尽可能延迟。总而言之，在垂直切换场景中实际的无线网络服务质量测量和无线网络小区边界的改进检测降低了不必要的垂直切换的速率，从而导致无线网络类型之间漫游的移动计算设备所经历的更高的整体服务质量。

2. 发明申请

US20050083874A1 Vertical roaming in wireless networks through improved quality of service measures 有权
公开(公告)号：US20050083874A1
公开(公告)日：2005-04-21
申请号：US10968696
申请日：2004-10-18
申请人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
发明人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
IPC分类号： H04W36/04 , H04W36/14 , H04W36/22 , H04Q7/00
CPC分类号： H04W36/0088 , H04W36/04 , H04W36/14 , H04W36/22
摘要： A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.

3. 发明申请

US20050068982A1 Vertical roaming in wireless networks through improved quality of service measures 有权
标题翻译：通过提高服务质量的措施，在无线网络中进行垂直漫游
公开(公告)号：US20050068982A1
公开(公告)日：2005-03-31
申请号：US10968602
申请日：2004-10-18
申请人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
发明人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
IPC分类号： H04W36/04 , H04W36/14 , H04W36/22 , H04J3/16
CPC分类号： H04W36/0088 , H04W36/04 , H04W36/14 , H04W36/22
摘要： A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.
摘要翻译：一种用于改善不同类型无线网络之间的垂直切换的系统和方法。网络分配向量占用和分组冲突概率被用作服务质量度量，使得垂直切换被延迟，直到实际上有益于服务质量。利用基于傅里叶的技术结合自适应确定的最小操作信号强度阈值来实现垂直切换场景中改进的无线网孔单元边界检测。改进的无线网络小区边界检测能够使来自高质量服务网络的垂直切换尽可能延迟。总而言之，在垂直切换场景中实际的无线网络服务质量测量和无线网络小区边界的改进检测降低了不必要的垂直切换的速率，从而导致无线网络类型之间漫游的移动计算设备所经历的更高的整体服务质量。

4. 发明授权

US07426178B2 Vertical roaming in wireless networks through improved wireless network cell boundary detection 有权
标题翻译：通过改进的无线网络单元边界检测在无线网络中垂直漫游
公开(公告)号：US07426178B2
公开(公告)日：2008-09-16
申请号：US11146965
申请日：2005-06-07
申请人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
发明人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
IPC分类号： H04J11/00
CPC分类号： H04W36/30 , H04B2201/70702
摘要： A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.
摘要翻译：一种用于改善不同类型无线网络之间的垂直切换的系统和方法。网络分配向量占用和分组冲突概率被用作服务质量度量，使得垂直切换被延迟，直到实际上有益于服务质量。利用基于傅里叶的技术结合自适应确定的最小操作信号强度阈值来实现垂直切换场景中改进的无线网孔单元边界检测。改进的无线网络小区边界检测能够使来自高质量服务网络的垂直切换尽可能延迟。总而言之，在垂直切换场景中实际的无线网络服务质量测量和无线网络小区边界的改进检测降低了不必要的垂直切换的速率，从而导致无线网络类型之间漫游的移动计算设备所经历的更高的整体服务质量。

5. 发明授权

US07154869B2 Vertical roaming in wireless networks through improved quality of service measures 有权
公开(公告)号：US07154869B2
公开(公告)日：2006-12-26
申请号：US11168254
申请日：2005-06-27
申请人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
发明人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
IPC分类号： H04Q7/00 , H04Q7/20
CPC分类号： H04W36/0088 , H04W36/04 , H04W36/14 , H04W36/22
摘要： A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.

6. 发明申请

US20050250508A1 Vertical roaming in wireless networks through improved quality of service measures 有权
公开(公告)号：US20050250508A1
公开(公告)日：2005-11-10
申请号：US11168254
申请日：2005-06-27
申请人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
发明人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
IPC分类号： H04W36/04 , H04W36/14 , H04W36/22 , H04Q7/20
CPC分类号： H04W36/0088 , H04W36/04 , H04W36/14 , H04W36/22
摘要： A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.

7. 发明申请

US20050213542A1 Vertical roaming in wireless networks through improved wireless network cell boundary detection 有权
标题翻译：通过改进的无线网络单元边界检测在无线网络中垂直漫游
公开(公告)号：US20050213542A1
公开(公告)日：2005-09-29
申请号：US11146965
申请日：2005-06-07
申请人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
发明人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
IPC分类号： H04B7/212 , H04B7/26 , H04J3/16 , H04J7/00 , H04J11/00 , H04L20060101 , H04L12/28 , H04W36/14 , H04W36/30 , H04Q7/00
CPC分类号： H04W36/30 , H04B2201/70702
摘要： A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.
摘要翻译：一种用于改善不同类型无线网络之间的垂直切换的系统和方法。网络分配向量占用和分组冲突概率被用作服务质量度量，使得垂直切换被延迟，直到实际上有益于服务质量。利用基于傅里叶的技术结合自适应确定的最小操作信号强度阈值来实现垂直切换场景中改进的无线网孔单元边界检测。改进的无线网络小区边界检测能够使来自高质量服务网络的垂直切换尽可能延迟。总而言之，在垂直切换场景中实际的无线网络服务质量测量和无线网络小区边界的改进检测降低了不必要的垂直切换速率，从而导致移动计算设备在无线网络类型之间漫游所遇到的更高的整体服务质量。

8. 发明授权

US06944144B2 Vertical roaming in wireless networks through improved quality of service measures 有权
公开(公告)号：US06944144B2
公开(公告)日：2005-09-13
申请号：US10377494
申请日：2003-02-28
申请人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
发明人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
IPC分类号： H04W36/04 , H04W36/14 , H04W36/22 , H04Q7/00 , H04B7/212 , H04J3/00 , H04L12/43
CPC分类号： H04W36/0088 , H04W36/04 , H04W36/14 , H04W36/22
摘要： A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.

9. 发明授权

US07499432B2 Vertical roaming in wireless networks through improved quality of service measures 有权
标题翻译：通过提高服务质量的措施，在无线网络中进行垂直漫游
公开(公告)号：US07499432B2
公开(公告)日：2009-03-03
申请号：US10968696
申请日：2004-10-18
申请人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
发明人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
IPC分类号： H04Q7/00 , H04J3/00 , H04B7/212 , H04L12/43
CPC分类号： H04W36/0088 , H04W36/04 , H04W36/14 , H04W36/22
摘要： A system and method for improved vertical handoff between different types of wireless network. Network allocation vector occupation and packet collision probability are used as quality of service measures, enabling vertical handoffs to be delayed until actually beneficial to quality of service. Improved wireless network cell boundary detection in vertical handoff scenarios is achieved with a Fourier-based technique in conjunction with an adaptively determined minimum operating signal strength threshold. Improved wireless network cell boundary detection enables vertical handoffs from high quality of service networks to be delayed as long as possible. Together, practical wireless network quality of service measures and improved detection of wireless network cell boundaries in vertical handoff scenarios reduce the rate of unnecessary vertical handoff resulting in higher overall quality of service experienced by a mobile computing device roaming between wireless network types.
摘要翻译：一种用于改善不同类型无线网络之间的垂直切换的系统和方法。网络分配向量占用和分组冲突概率被用作服务质量度量，使得垂直切换被延迟，直到实际上有益于服务质量。利用基于傅里叶的技术结合自适应确定的最小操作信号强度阈值来实现垂直切换场景中改进的无线网孔单元边界检测。改进的无线网络小区边界检测能够使来自高质量服务网络的垂直切换尽可能延迟。总而言之，在垂直切换场景中实际的无线网络服务质量测量和无线网络小区边界的改进检测降低了不必要的垂直切换的速率，从而导致无线网络类型之间漫游的移动计算设备所经历的更高的整体服务质量。

10. 发明授权

US07092405B2 Vertical roaming in wireless networks through improved quality of service measures 有权
标题翻译：通过提高服务质量的措施，在无线网络中进行垂直漫游
公开(公告)号：US07092405B2
公开(公告)日：2006-08-15
申请号：US10968602
申请日：2004-10-18
申请人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
发明人： Zihua Guo , Qian Zhang , Richard Yao , Wenwu Zhu
IPC分类号： H04J3/16 , H04J3/18
CPC分类号： H04W36/0088 , H04W36/04 , H04W36/14 , H04W36/22
摘要： A system and method for vertical handoff between different types of wireless networks. A network allocation vector of a first wireless network is sampled for a period of time. The network allocation vector may include a transmission time advertised by a sender in the first wireless network. A network allocation vector occupation is calculated. The calculation of the network allocation vector may include calculating a ratio of an amount of time that the network allocation vector is busy during the time period to a total amount of time during the time period. A wireless network quality of service measure is calculated as a function of the network allocation vector occupation. A vertical handoff may be initiated from a second wireless network to the first wireless network based at least in part on the calculated wireless network quality of service measure.
摘要翻译：一种用于不同类型无线网络之间垂直切换的系统和方法。第一无线网络的网络分配向量被采样一段时间。网络分配向量可以包括由第一无线网络中的发送者通告的传输时间。计算网络分配向量占用。网络分配向量的计算可以包括计算网络分配向量在该时间段期间占用的时间量与该时间段内的总时间量的比率。计算无线网络服务质量度量作为网络分配向量占用的函数。至少部分地基于所计算的无线网络服务质量度量，可以从第二无线网络向第一无线网络发起垂直切换。

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