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1. 发明授权

US08903393B2 Wireless communication device for maintaining minimum quality of service (QoS) communication sessions during hard handoffs 有权
标题翻译：用于在硬切换期间维持最低服务质量（QoS）通信会话的无线通信设备
公开(公告)号：US08903393B2
公开(公告)日：2014-12-02
申请号：US11835143
申请日：2007-08-07
申请人： Ajith T. Payyappilly , Lei Shen , Parag Arun Agashe , Reza Shahidi
发明人： Ajith T. Payyappilly , Lei Shen , Parag Arun Agashe , Reza Shahidi
IPC分类号： H04W36/00 , H04W36/26 , H04W28/24
CPC分类号： H04W36/26 , H04W28/24 , H04W36/0055
摘要： The disclosure relates to techniques for maintaining minimum quality of service (QoS) communication sessions with a wireless communication device (WCD) over a data-based communication network during a hard handoff between access networks for the WCD. More specifically, the techniques determine whether a closed connection between the WCD and a first access network during a minimum QoS communication session is due to a hard handoff between the first access network and a second access network. In the case of a hard handoff, the techniques maintain open QoS reservations associated with data flows included in the minimum QoS communication session for a predetermined period of time to enable a new connection to be established between the WCD and a second access network. The techniques described herein may especially useful when performing a voice over Internet Protocol (VoIP) call over an Evolution-Data Optimized (EVDO) communication network.
摘要翻译：本公开涉及用于在用于WCD的接入网络之间的硬切换期间通过基于数据的通信网络来维持与无线通信设备（WCD）的最小服务质量（QoS）通信会话的技术。更具体地，该技术确定在最小QoS通信会话期间WCD和第一接入网络之间的闭合连接是否是由于第一接入网络和第二接入网络之间的硬切换。在硬切换的情况下，技术保持与包括在最小QoS通信会话中的数据流相关联的预定时间段的开放QoS保留，以使得能够在WCD和第二接入网络之间建立新连接。当在演进数据优化（EVDO）通信网络上执行通过因特网协议（VoIP）呼叫的语音呼叫时，本文描述的技术尤其有用。

2. 发明申请

US20090005044A1 MAINTAINING MINIMUM QUALITY OF SERVICE (QoS) COMMUNICATION SESSIONS DURING HARD HANDOFFS 有权
标题翻译：维持最低质量的服务（QoS）通信会议在硬汉
公开(公告)号：US20090005044A1
公开(公告)日：2009-01-01
申请号：US11835143
申请日：2007-08-07
申请人： Ajith T. Payyappilly , Lei Shen , Parag Arun Agashe , Reza Shahidi
发明人： Ajith T. Payyappilly , Lei Shen , Parag Arun Agashe , Reza Shahidi
IPC分类号： H04Q7/20
CPC分类号： H04W36/26 , H04W28/24 , H04W36/0055
摘要： The disclosure relates to techniques for maintaining minimum quality of service (QoS) communication sessions with a wireless communication device (WCD) over a data-based communication network during a hard handoff between access networks for the WCD. More specifically, the techniques determine whether a closed connection between the WCD and a first access network during a minimum QoS communication session is due to a hard handoff between the first access network and a second access network. In the case of a hard handoff, the techniques maintain open QoS reservations associated with data flows included in the minimum QoS communication session for a predetermined period of time to enable a new connection to be established between the WCD and a second access network. The techniques described herein may especially useful when performing a voice over Internet Protocol (VoIP) call over an Evolution-Data Optimized (EVDO) communication network.
摘要翻译：本公开涉及用于在用于WCD的接入网络之间的硬切换期间通过基于数据的通信网络来维持与无线通信设备（WCD）的最小服务质量（QoS）通信会话的技术。更具体地，该技术确定在最小QoS通信会话期间WCD和第一接入网络之间的闭合连接是否是由于第一接入网络和第二接入网络之间的硬切换。在硬切换的情况下，技术保持与包括在最小QoS通信会话中的数据流相关联的预定时间段的开放QoS保留，以使得能够在WCD和第二接入网络之间建立新连接。当在演进数据优化（EVDO）通信网络上执行通过因特网协议（VoIP）呼叫的语音呼叫时，本文描述的技术尤其有用。

3. 发明申请

US20090003208A1 METHOD AND APPARATUS FOR MAINTAINING AN ALWAYS-ON DATA SESSION IN A WIRELESS COMMUNICATION NETWORK 有权
标题翻译：在无线通信网络中维护一个全局数据会话的方法和装置
公开(公告)号：US20090003208A1
公开(公告)日：2009-01-01
申请号：US11830710
申请日：2007-07-30
申请人： Ajith T. Payyappilly , Lei Shen , Parag Arun Agashe , Reza Shahidi
发明人： Ajith T. Payyappilly , Lei Shen , Parag Arun Agashe , Reza Shahidi
IPC分类号： G08C15/00
CPC分类号： H04W76/045 , H04L67/14 , H04L67/145 , H04L67/147 , H04W4/20 , H04W76/25 , H04W80/02
摘要： Techniques for maintaining an always-on data session for an access terminal are described. Messages to keep alive the data session may be sent using non-traffic channels to avoid bringing up traffic channels just to send these messages. In one design, an access network may send a first message (e.g., a RouteUpdateRequest message) on a first non-traffic channel (e.g., a control channel) to the access terminal. The access terminal may return a second message (e.g., a RouteUpdate message) on a second non-traffic channel (e.g., an access channel) to the access network. The access network may then send a third message (e.g., for an Echo-Request) on the first non-traffic channel over a smaller area covering an approximate location of the access terminal, which may be determined based on the second message. The access terminal may return a fourth message (e.g., for an Echo-Reply) on the second non-traffic channel to the access network.
摘要翻译：描述了用于维护接入终端的始终接通数据会话的技术。可以使用非流量信道发送保持数据会话的消息，以避免产生流量信道来发送这些消息。在一种设计中，接入网络可以在第一非业务信道（例如，控制信道）上向接入终端发送第一消息（例如，RouteUpdateRequest消息）。接入终端可以在接入网络的第二非业务信道（例如，接入信道）上返回第二消息（例如，RouteUpdate消息）。然后，接入网络可以在覆盖接入终端的大致位置的较小区域上，在第一非业务信道上发送第三消息（例如，对于Echo请求），其可以基于第二消息来确定。接入终端可以在第二非业务信道上向接入网络返回第四消息（例如，用于回应 - 回复）。

4. 发明授权

US09414429B2 Method and apparatus for maintaining an always-on data session in a wireless communication network 有权
标题翻译：用于在无线通信网络中维持始终在线数据会话的方法和装置
公开(公告)号：US09414429B2
公开(公告)日：2016-08-09
申请号：US11830710
申请日：2007-07-30
申请人： Ajith T. Payyappilly , Lei Shen , Parag Arun Agashe , Reza Shahidi
发明人： Ajith T. Payyappilly , Lei Shen , Parag Arun Agashe , Reza Shahidi
IPC分类号： H04L29/08 , H04W76/04 , H04W4/20 , H04W80/02
CPC分类号： H04W76/045 , H04L67/14 , H04L67/145 , H04L67/147 , H04W4/20 , H04W76/25 , H04W80/02
摘要： Techniques for maintaining an always-on data session for an access terminal are described. Messages to keep alive the data session may be sent using non-traffic channels to avoid bringing up traffic channels just to send these messages. In one design, an access network may send a first message (e.g., a RouteUpdateRequest message) on a first non-traffic channel (e.g., a control channel) to the access terminal. The access terminal may return a second message (e.g., a RouteUpdate message) on a second non-traffic channel (e.g., an access channel) to the access network. The access network may then send a third message (e.g., for an Echo-Request) on the first non-traffic channel over a smaller area covering an approximate location of the access terminal, which may be determined based on the second message. The access terminal may return a fourth message (e.g., for an Echo-Reply) on the second non-traffic channel to the access network.
摘要翻译：描述了用于维护接入终端的始终接通数据会话的技术。可以使用非流量信道发送保持数据会话的消息，以避免产生流量信道来发送这些消息。在一种设计中，接入网络可以在第一非业务信道（例如，控制信道）上向接入终端发送第一消息（例如，RouteUpdateRequest消息）。接入终端可以在接入网络的第二非业务信道（例如，接入信道）上返回第二消息（例如，RouteUpdate消息）。然后，接入网络可以在覆盖接入终端的大致位置的较小区域上，在第一非业务信道上发送第三消息（例如，对于Echo请求），其可以基于第二消息来确定。接入终端可以在第二非业务信道上向接入网络返回第四消息（例如，用于回应 - 回复）。

5. 发明授权

US09392608B2 Resource partitioning information for enhanced interference coordination 有权
标题翻译：用于增强干扰协调的资源分区信息
公开(公告)号：US09392608B2
公开(公告)日：2016-07-12
申请号：US13085373
申请日：2011-04-12
申请人： Osok Song , Aleksandar Damnjanovic , Tingfang Ji , Taesang Yoo , Parag Arun Agashe , Madhavan Srinivasan Vajapeyam , Yongbin Wei , Tao Luo , Rajat Prakash , Masato Kitazoe
发明人： Osok Song , Aleksandar Damnjanovic , Tingfang Ji , Taesang Yoo , Parag Arun Agashe , Madhavan Srinivasan Vajapeyam , Yongbin Wei , Tao Luo , Rajat Prakash , Masato Kitazoe
IPC分类号： H04W72/00 , H04W72/08
CPC分类号： H04W72/082 , H04W72/08
摘要： Methods and apparatus for partitioning resources for enhanced inter-cell interference coordination (eICIC) are provided. Certain aspects involve broadcasting a message indicating time-domain resource partitioning information (RPI), where a user equipment (UE) may be operating in idle mode. With the RPI, the UE may be able to identify protected resources with reduced/eliminated interference from neighboring cells. The RPI in this broadcasted message may be encoded as a bitmap as an alternative or in addition to enumeration of the U/N/X subframes. Other aspects entail transmitting a dedicated or unicast message indicating the time-domain RPI, where a UE may be operating in connected mode. With the RPI, the UE may be able to determine channel state information (CSI), make radio resource management (RRM) measurements, or perform radio link monitoring (RLM), based on one or more signals from a serving base station during the protected time-domain resources.
摘要翻译：提供了用于分区资源以增强小区间干扰协调（eICIC）的方法和装置。某些方面涉及广播指示时域资源划分信息（RPI）的消息，其中用户设备（UE）可以在空闲模式下操作。利用RPI，UE可能能够识别来自相邻小区的减少/消除的干扰的受保护资源。该广播消息中的RPI可以被编码为位图，作为U / N / X子帧的枚举的替代或补充。其他方面需要发送指示时域RPI的专用或单播消息，其中UE可以在连接模式下操作。利用RPI，UE可以在受保护的基站期间基于来自服务基站的一个或多个信号来确定信道状态信息（CSI），进行无线电资源管理（RRM）测量或执行无线电链路监视（RLM）时域资源。

6. 发明授权

US09226288B2 Method and apparatus for supporting communications in a heterogeneous network 有权
标题翻译：用于支持异构网络中的通信的方法和装置
公开(公告)号：US09226288B2
公开(公告)日：2015-12-29
申请号：US13085080
申请日：2011-04-12
申请人： Alan Barbieri , Tingfang Ji , Tao Luo , Madhavan Srinivasan Vajapeyam , Osok Song , Aleksandar Damnjanovic , Yongbin Wei , Parag Arun Agashe , Durga Prasad Malladi
发明人： Alan Barbieri , Tingfang Ji , Tao Luo , Madhavan Srinivasan Vajapeyam , Osok Song , Aleksandar Damnjanovic , Yongbin Wei , Parag Arun Agashe , Durga Prasad Malladi
IPC分类号： H04W4/00 , H04W72/04 , H04W72/00 , H04W72/12
CPC分类号： H04W72/0426 , H04W72/005 , H04W72/1231 , H04W72/1289
摘要： A method, an apparatus, and a computer program product for wireless communication are provided in which an apparatus may determine broadcast channel scheduling information for one or more broadcasts of a payload by a broadcast channel associated with a first base station based on one or more broadcast channel interference coordination schemes, wherein reception of the broadcast channel associated with the first base station is interfered at least in part based on one or more transmissions from a second base station, and receive the payload based on the determined broadcast channel scheduling information.
摘要翻译：提供了一种用于无线通信的方法，装置和计算机程序产品，其中装置可以基于一个或多个广播来确定与第一基站相关联的广播信道的有效载荷的一个或多个广播的广播信道调度信息信道干扰协调方案，其中与第一基站相关联的广播信道的接收至少部分地基于来自第二基站的一个或多个传输被干扰，并且基于所确定的广播信道调度信息来接收有效载荷。

7. 发明授权

US08948395B2 Systems and methods for key management for wireless communications systems 有权
标题翻译：无线通信系统密钥管理的系统和方法
公开(公告)号：US08948395B2
公开(公告)日：2015-02-03
申请号：US11843583
申请日：2007-08-22
申请人： Vidya Narayanan , Lakshminath Reddy Dondeti , Parag Arun Agashe , Paul E. Bender
发明人： Vidya Narayanan , Lakshminath Reddy Dondeti , Parag Arun Agashe , Paul E. Bender
IPC分类号： H04L29/06 , H04W12/04 , H04L9/08 , H04W36/08
CPC分类号： H04L63/062 , H04L9/0844 , H04L9/0891 , H04L2209/80 , H04L2463/061 , H04W12/04 , H04W36/08
摘要： A novel key management approach is provided for securing communication handoffs between and access terminal and two access points. This approach provides for securely handing off communications between an access terminal and access point without risking exposure a master key for the access terminal. Temporary master keys are derived for low latency handoffs and secure authentication between a new access point and the access terminal. In one aspect, a distributive key management scheme is provided in which a current access point generates a new security key (based on its own security key) that is used by the next access point with which an access terminal communicates. In another aspect, a centralized key management scheme is provided in which a central authenticator maintains, generates, and distributes new security keys (based on a master security key associated with the access terminal) to access points.
摘要翻译：提供了一种新颖的密钥管理方法，用于保证接入终端与两个接入点之间的通信切换。这种方法提供了安全地切断接入终端和接入点之间的通信，而不会冒着接入终端的主密钥的风险。派生临时主密钥用于低延迟切换和新接入点与接入终端之间的安全认证。一方面，提供一种分配密钥管理方案，其中当前接入点生成由接入终端与之通信的下一个接入点使用的新的安全密钥（基于其自身的安全密钥）。在另一方面，提供一种集中式密钥管理方案，其中中央认证器维护，生成和分发新的安全密钥（基于与接入终端相关联的主安全密钥）到接入点。

8. 发明授权

US08903413B2 Hybrid cell management in wireless networks 有权
标题翻译：无线网络中的混合小区管理
公开(公告)号：US08903413B2
公开(公告)日：2014-12-02
申请号：US12727168
申请日：2010-03-18
申请人： Tingfang Ji , Gavin Bernard Horn , Ravi Palanki , Parag Arun Agashe
发明人： Tingfang Ji , Gavin Bernard Horn , Ravi Palanki , Parag Arun Agashe
IPC分类号： H04W72/00 , H04W40/00 , H04W4/00 , H04W36/08 , G06F15/16 , H04W4/06 , H04W76/02
CPC分类号： H04W36/08 , H04W4/06 , H04W76/10 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/22
摘要： Systems and methodologies are described that facilitate providing hybrid cell access points that can support closed subscriber groups (CSG) while providing at least a minimum level of service to wireless devices excluded from the CSG. Hybrid cell access points can allow non-member wireless devices to camp and receive paging signals. Upon receiving a request for resources from non-member wireless devices, hybrid cell access points can handover the non-member wireless devices to an access point that can serve the non-member wireless devices, provide a portion of resources compared to a disparate portion provided to member wireless devices, and/or the like. In addition, hybrid cell access points can vary levels of service and downlink transmission power to provide load balancing for access points. Varying levels of service and downlink transmission power can facilitate additional functionality, such as reducing transmission power to serve member devices while mitigating interference to non-member devices.
摘要翻译：描述了系统和方法，其便于提供可以支持封闭用户组（CSG）的混合小区接入点，同时向从CSG排除的无线设备提供至少最低级别的服务。混合小区接入点可以允许非成员无线设备驻留和接收寻呼信号。在从非成员无线设备接收到对资源的请求时，混合小区接入点可以将非成员无线设备切换到可以服务非成员无线设备的接入点，提供与提供的不同部分相比的一部分资源到成员无线设备和/或类似物。此外，混合小区接入点可以改变服务等级和下行链路传输功率，以为接入点提供负载均衡。不同级别的服务和下行链路传输功率可以促进附加的功能，例如降低传输功率以服务于成员设备，同时减轻对非成员设备的干扰。

9. 发明授权

US08792646B2 Systems and methods for group key distribution and management for wireless communications systems 有权
标题翻译：无线通信系统组密钥分发和管理系统和方法
公开(公告)号：US08792646B2
公开(公告)日：2014-07-29
申请号：US12055200
申请日：2008-03-25
申请人： Peerapol Tinnakornsrisuphap , Fatih Ulupinar , Parag Arun Agashe , Ravindra Patwardhan , Rajat Prakash , Vidya Narayanan
发明人： Peerapol Tinnakornsrisuphap , Fatih Ulupinar , Parag Arun Agashe , Ravindra Patwardhan , Rajat Prakash , Vidya Narayanan
IPC分类号： H04L9/08 , H04L29/06 , H04W12/04
CPC分类号： H04L9/0833 , H04L12/189 , H04L63/062 , H04L63/065 , H04W12/04 , H04W88/08
摘要： A novel group key distribution and management scheme for broadcast message security is provided that allows an access terminal to send a single copy of a broadcast message encrypted with a group key. Access nodes that are members of an active set of access nodes for the access terminal may decrypt and understand the message. The group key is generated and distributed by the access terminal to the access nodes in its active set using temporary unicast keys to secure the group key during distribution. A new group key is provided every time an access node is removed from the active set of access nodes for the access terminal.
摘要翻译：提供了一种用于广播消息安全性的新颖的组密钥分配和管理方案，其允许接入终端发送用组密钥加密的广播消息的单个副本。作为接入终端的有效的接入节点组的成员的接入节点可以解密和理解消息。组密钥由接入终端使用临时单播密钥生成并分发给其活动集中的接入节点，以在分发期间保护组密钥。每次从接入终端的活动接入节点集中移除接入节点时，都会提供一个新的组密钥。

10. 发明授权

US08724545B2 Method and apparatus to facilitate support for multi-radio coexistence 有权
标题翻译：便于支持多无线电共存的方法和装置
公开(公告)号：US08724545B2
公开(公告)日：2014-05-13
申请号：US12851302
申请日：2010-08-05
申请人： Pranav Dayal , Ashok Mantravadi , Tamer Adek Kadous , Parag Arun Agashe
发明人： Pranav Dayal , Ashok Mantravadi , Tamer Adek Kadous , Parag Arun Agashe
IPC分类号： H04Q7/00
CPC分类号： H04W16/14 , H04W72/1215 , H04W88/06
摘要： A method of wireless communication includes identifying at least one current resource for which a coexistence issue is present. The method also includes submitting a message to a base station that includes information indicative of the coexistence issue for the current resource(s). The handover request may include information indicative of the resource for which the coexistence issue is present and/or a desired future resource.
摘要翻译：无线通信的方法包括识别存在共存问题的至少一个当前资源。该方法还包括向基站提交包括指示当前资源的共存问题的信息的消息。切换请求可以包括指示存在共存问题的资源和/或期望的未来资源的信息。

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