公开(公告)号：US08910271B2

公开(公告)日：2014-12-09

申请号：US13635213

申请日：2006-10-27

申请人： Rajavelsamy Rajadurai ,  Venkateswar Jeedigunta ,  Rahul Suhas Vaidya ,  O-Sok Song ,  Sung-Ho Choi

发明人： Rajavelsamy Rajadurai ,  Venkateswar Jeedigunta ,  Rahul Suhas Vaidya ,  O-Sok Song ,  Sung-Ho Choi

IPC分类号： H04L29/06 ,  H04W36/00 ,  H04W88/06 ,  H04W12/06

CPC分类号： H04L63/0892 ,  H04W12/06 ,  H04W36/0022 ,  H04W36/0038 ,  H04W36/14 ,  H04W84/12 ,  H04W88/06

摘要： This invention relates to the area of Mobility and Handover between heterogeneous wireless networks. The scope of the invention also covers the case when the UE is capable of accessing both the WLAN and EUTRAN access systems simultaneously and also the case where the UE is not capable of accessing both the WLAN and EUTRAN access systems simultaneously. This invention provides a system and method to perform Mobility between the access systems with optimized authentication procedure using security context transfer between the access systems and also minimize the data loss by buffering the data during the handover. More specifically, this invention provides a system and method to support handover between the I-WLAN and the EUTRAN access systems.

摘要翻译： 本发明涉及异构无线网络之间的移动和切换的领域。 本发明的范围还涵盖了UE能够同时访问WLAN和EUTRAN接入系统两者的情况，还涉及UE不能同时接入WLAN和EUTRAN接入系统的情况。 本发明提供了一种使用优化的认证过程在接入系统之间执行移动性的系统和方法，该接入系统使用接入系统之间的安全上下文传输，并且还通过在切换期间缓冲数据来最小化数据丢失。 更具体地，本发明提供了支持I-WLAN和EUTRAN接入系统之间的切换的系统和方法。

公开(公告)号：US20130042304A1

公开(公告)日：2013-02-14

申请号：US13635213

申请日：2006-10-27

申请人： R. Rajavelsamy ,  Venkateswar Jeedigunta ,  Rahul Suhas Vaidya ,  O-Sok Song ,  Sung-Ho Choi

发明人： R. Rajavelsamy ,  Venkateswar Jeedigunta ,  Rahul Suhas Vaidya ,  O-Sok Song ,  Sung-Ho Choi

IPC分类号： H04W12/06

CPC分类号： H04L63/0892 ,  H04W12/06 ,  H04W36/0022 ,  H04W36/0038 ,  H04W36/14 ,  H04W84/12 ,  H04W88/06

摘要： This invention relates to the area of Mobility and Handover between heterogeneous wireless networks. The scope of the invention also covers the case when the UE is capable of accessing both the WLAN and EUTRAN access systems simultaneously and also the case where the UE is not capable of accessing both the WLAN and EUTRAN access systems simultaneously. This invention provides a system and method to perform Mobility between the access systems with optimized authentication procedure using security context transfer between the access systems and also minimize the data loss by buffering the data during the handover. More specifically, this invention provides a system and method to support handover between the I-WLAN and the EUTRAN access systems.

摘要翻译： 本发明涉及异构无线网络之间的移动和切换的领域。 本发明的范围还涵盖了UE能够同时访问WLAN和EUTRAN接入系统两者的情况，还涉及UE不能同时接入WLAN和EUTRAN接入系统的情况。 本发明提供了一种使用优化的认证过程在接入系统之间执行移动性的系统和方法，该接入系统使用接入系统之间的安全上下文传输，并且还通过在切换期间缓冲数据来最小化数据丢失。 更具体地，本发明提供了支持I-WLAN和EUTRAN接入系统之间的切换的系统和方法。

公开(公告)号：US20080317064A1

公开(公告)日：2008-12-25

申请号：US12228921

申请日：2008-08-18

申请人： Sung-Ho Choi ,  O-Sok Song ,  Rahul Suhas Vaidya

发明人： Sung-Ho Choi ,  O-Sok Song ,  Rahul Suhas Vaidya

IPC分类号： H04J3/22

CPC分类号： H04W80/045 ,  H04W8/14 ,  H04W88/182

摘要： The present invention provides session continuity when a User Equipment (UE) moves from one network to another network. A method and system for providing access to nodes supporting, for example, both Internet Protocol Version 4 (IPv4) and Internet Protocol Version (IPv6) on a network supporting only one of the IP versions are provided. In addition, both network based mobility and UE based mobility mechanisms are supported to allow a UE supporting dual stack mobility access to a network supporting only one of IPv4 or IPv6. The invention provides for a reduction of header overhead and signaling overhead.

摘要翻译： 当用户设备（UE）从一个网络移动到另一个网络时，本发明提供会话连续性。 提供了一种方法和系统，用于提供对仅支持一个IP版本的网络上支持例如互联网协议版本4（IPv4）和因特网协议版本（IPv6）两者的节点的访问。 此外，支持基于网络的移动性和基于UE的移动性机制，以允许UE支持对仅支持IPv4或IPv6中的一个的网络的双栈移动性访问。 本发明提供了头部开销和信令开销的减少。

公开(公告)号：US07813347B2

公开(公告)日：2010-10-12

申请号：US12228921

申请日：2008-08-18

申请人： Sung-Ho Choi ,  O-Sok Song ,  Rahul Suhas Vaidya

发明人： Sung-Ho Choi ,  O-Sok Song ,  Rahul Suhas Vaidya

IPC分类号： H04L12/28 ,  H04J3/16

CPC分类号： H04W80/045 ,  H04W8/14 ,  H04W88/182

摘要： The present invention provides session continuity when a User Equipment (UE) moves from one network to another network. A method and system for providing access to nodes supporting, for example, both Internet Protocol Version 4 (IPv4) and Internet Protocol Version (IPv6) on a network supporting only one of the IP versions are provided. In addition, both network based mobility and UE based mobility mechanisms are supported to allow a UE supporting dual stack mobility access to a network supporting only one of IPv4 or IPv6. The invention provides for a reduction of header overhead and signaling overhead.

摘要翻译： 当用户设备（UE）从一个网络移动到另一个网络时，本发明提供会话连续性。 提供了一种方法和系统，用于提供对仅支持一个IP版本的网络上支持例如互联网协议版本4（IPv4）和因特网协议版本（IPv6）两者的节点的访问。 此外，支持基于网络的移动性和基于UE的移动性机制，以允许UE支持对仅支持IPv4或IPv6中的一个的网络的双栈移动性访问。 本发明提供了头部开销和信令开销的减少。

公开(公告)号：US08634400B2

公开(公告)日：2014-01-21

申请号：US11520781

申请日：2006-09-14

申请人： Soeng-Hun Kim ,  Sung-Ho Choi ,  O-Sok Song ,  Gert Jan Van Lieshout ,  Himke Van Der Velde

发明人： Soeng-Hun Kim ,  Sung-Ho Choi ,  O-Sok Song ,  Gert Jan Van Lieshout ,  Himke Van Der Velde

IPC分类号： H04L12/58

CPC分类号： H04W28/0278 ,  H04L1/1635 ,  H04L1/1642 ,  H04L1/1657 ,  H04L1/1825 ,  H04L1/1854 ,  H04W36/02

摘要： A method and terminal apparatus for transmitting a status report comprising a received status of packet data in a mobile communication system are provided, in which whether transmission of an implicit Negative Acknowledge (NACK) signal is required for requesting retransmission of at least one non-received data packet whose sequence number is unidentified is determined, if transmission of the implicit NACK signal is required, the implicit NACK signal including a sequence number of the last packet is generated among successfully received data packets, and a status report including the implicit NACK signal is transmitted to the transmitter, and if transmission of the implicit NACK signal is not required, a status report is transmitted to the transmitter including at least one of an ACK signal comprising a sequence number of a successfully received data packet and an explicit NACK signal comprising a sequence number of a non-received data packet whose sequence number is identified.

摘要翻译： 提供了一种用于在移动通信系统中发送包括分组数据的接收状态的状态报告的方法和终端装置，其中是否需要传输隐式负应答（NACK）信号以请求重传至少一个未接收 确定序列号未识别的数据分组，如果需要传输隐式NACK信号，则在成功接收的数据分组之间生成包括最后分组的序列号的隐式NACK信号，并且包括隐式NACK信号的状态报告是 并且如果不需要传输隐式NACK信号，则向发射机发送包括包括成功接收的数据分组的序列号的ACK信号和包括a的显式NACK信号中的至少一个的状态报告 识别序列号的未接收数据包的序列号。

公开(公告)号：US07962138B2

公开(公告)日：2011-06-14

申请号：US11703599

申请日：2007-02-07

申请人： Eun-Hui Bae ,  Sung-Ho Choi ,  O-Sok Song ,  Beom-Sik Bae ,  No-Jun Kwak ,  Gert Jan Van Lieshout

发明人： Eun-Hui Bae ,  Sung-Ho Choi ,  O-Sok Song ,  Beom-Sik Bae ,  No-Jun Kwak ,  Gert Jan Van Lieshout

IPC分类号： H04W36/00

CPC分类号： H04W60/00

摘要： A method and apparatus is provided for reducing a signaling overhead in routing area update performed by a mobile station in a mobile communication system. The method includes grouping cells of the mobile communication system into predetermined cell groups by the network entity, wherein each of the predetermined cell groups is a minimum unit for routing area update; determining cell group identifiers of the cell groups by the network entity; and determining metric information for determining a shape of the routing area by the network entity.

摘要翻译： 提供了一种用于减少由移动通信系统中的移动台执行的路由区域更新中的信令开销的方法和装置。 该方法包括：由网络实体将移动通信系统的小区分组成预定小区组，其中每个预定小区组是用于路由区域更新的最小单元; 由网络实体确定小区组的小区组标识符; 以及确定由所述网络实体确定所述路由区域的形状的度量信息。

公开(公告)号：US07953042B2

公开(公告)日：2011-05-31

申请号：US11482109

申请日：2006-07-07

申请人： No-Jun Kwak ,  Sung-Ho Choi ,  Soeng-Hun Kim ,  Kyeong-In Jeong ,  Eun-Hui Bae ,  Han-Na Lim ,  O-Sok Song

发明人： No-Jun Kwak ,  Sung-Ho Choi ,  Soeng-Hun Kim ,  Kyeong-In Jeong ,  Eun-Hui Bae ,  Han-Na Lim ,  O-Sok Song

IPC分类号： H04W4/00 ,  H04B7/26

CPC分类号： H04W36/0066 ,  H04W36/0011 ,  H04W36/14 ,  H04W76/22 ,  H04W92/02

摘要： A method and apparatus performs handover from an OFDM-based E-UMTS system to a CDMA-based UMTS system. A UE in communication with a PDN via the E-UMTS system, measures signal strength of the UMTS system, and sends a measurement report message indicating the measured signal strength to the E-UMTS system. A radio access network (E-RAN) of the E-UMTS system, determines whether to perform handover from the E-UMTS system to the UMTS system based on the measured signal strength. If the handover is to be performed, a core network (E-CN) of the E-UMTS system generates a PDP context and an MM context for the UE in response to a handover request from the E-RAN. The E-CN sets up a data tunnel for the UE to a GGSN of the UMTS system using the PDP/MM context. After setting up the data tunnel, the E-CN sends to the UE a handover command message including information on a radio bearer (RB) to be used by the UE to access the UMTS system. The UE accesses the UMTS system using the RB information. After accessing the UMTS system, the UE forwards user data for the UE via a data transmission path composed of the E-CN, the data tunnel, a SGSN, and a RAN of the UMTS system, between the PDN and the UE.

摘要翻译： 方法和装置执行从基于OFDM的E-UMTS系统到基于CDMA的UMTS系统的切换。 经由E-UMTS系统与PDN通信的UE测量UMTS系统的信号强度，并向E-UMTS系统发送指示测量信号强度的测量报告消息。 E-UMTS系统的无线接入网络（E-RAN）基于测量的信号强度来确定是否执行从E-UMTS系统到UMTS系统的切换。 如果要执行切换，E-UMTS系统的核心网络（E-CN）响应于来自E-RAN的切换请求，为UE生成PDP上下文和MM上下文。 E-CN使用PDP / MM上下文为UE建立到UMTS系统的GGSN的数据隧道。 在建立数据隧道之后，E-CN向UE发送切换命令消息，该切换命令消息包括要被UE用于接入UMTS系统的无线承载（RB）信息。 UE使用RB信息访问UMTS系统。 在接入UMTS系统之后，UE经由PDN与UE之间的E-CN，数据隧道，SGSN和RAN的RAN组成的数据传输路径转发UE的用户数据。

公开(公告)号：US20100220717A1

公开(公告)日：2010-09-02

申请号：US12659168

申请日：2010-02-26

申请人： Soeng-Hun Kim ,  Sung-Ho Choi ,  Gert-Jan Van Lieshout ,  Himke Van Der Velde ,  O-Sok Song ,  No-Jun Kwak ,  Kyeong-In Jeong

发明人： Soeng-Hun Kim ,  Sung-Ho Choi ,  Gert-Jan Van Lieshout ,  Himke Van Der Velde ,  O-Sok Song ,  No-Jun Kwak ,  Kyeong-In Jeong

IPC分类号： H04L12/66

CPC分类号： H04W72/0406 ,  H04L29/06027 ,  H04L65/80 ,  H04W88/181

摘要： A method for controlling a rate of a voice service in a mobile communication system supporting the voice service via a packet network. The method includes the steps of receiving a control message at a terminal from a radio network controller (RNC); if the control message indicates control of a downlink rate, determining a downlink rate according to the control message; setting a Change Mode Request (CMR) field of an uplink Voice over Internet Protocol (VoIP) packet according to the downlink rate, and transmitting the uplink VoIP packet from the terminal to the RNC; if the received control message indicates control of an uplink rate, determining an uplink rate according to the control message; and generating an uplink VoIP packet including uplink voice data generated according to the determined uplink rate and frame type (FT) information indicating the determined uplink rate, and transmitting the uplink VoIP packet from the terminal to the RNC.

摘要翻译： 一种用于在经由分组网络支持语音服务的移动通信系统中控制语音服务的速率的方法。 该方法包括以下步骤：在终端从无线网络控制器（RNC）接收控制消息; 如果所述控制消息指示下行链路速率的控制，则根据所述控制消息确定下行链路速率; 根据下行速率设置上行语音上网语音（VoIP）分组的变化模式请求（CMR）字段，并从终端向RNC发送上行VoIP分组; 如果所接收的控制消息指示对上行链路速率的控制，则根据控制消息确定上行链路速率; 以及生成包括根据所确定的上行链路速率生成的上行链路语音数据和指示所确定的上行链路速率的帧类型（FT）信息的上行链路VoIP分组，并且将所述上行链路VoIP分组从所述终端发送到所述RNC。

公开(公告)号：US07391754B2

公开(公告)日：2008-06-24

申请号：US11286329

申请日：2005-11-25

申请人： Eun-Hui Bae ,  O-Sok Song ,  Sung-Ho Choi ,  Dong-Ho Cho ,  Hyun-Ho Choi

发明人： Eun-Hui Bae ,  O-Sok Song ,  Sung-Ho Choi ,  Dong-Ho Cho ,  Hyun-Ho Choi

IPC分类号： H04Q7/00 ,  H04Q7/20

CPC分类号： H04L63/0869 ,  H04L63/04 ,  H04W8/26 ,  H04W12/02 ,  H04W12/06 ,  H04W36/0016 ,  H04W80/04

摘要： A seamless handoff system and method reduces delay and packet loss during handoff of user equipment (UE) from a Wireless Local Area Network (WLAN) network to a Universal Mobile Telecommunication System (UMTS) network. The handoff system and method performs pre-registration and pre-authentication processes before the occurrence of a handoff, buffers packets being delivered to a UE during a handoff period, and forwards the buffered packets to the UE after completion of the handoff, thereby reducing packet loss that can occur during handoff.

摘要翻译： 无缝切换系统和方法减少用户设备（UE）从无线局域网（WLAN）网络切换到通用移动电信系统（UMTS）网络期间的延迟和分组丢失。 切换系统和方法在切换发生之前执行预注册和预认证过程，在切换周期期间缓存递送给UE的分组，并且在切换完成之后将缓冲的分组转发到UE，从而减少分组 在切换过程中可能发生的损失。

公开(公告)号：US20070287476A1

公开(公告)日：2007-12-13

申请号：US11789711

申请日：2007-04-25

申请人： Kyeong-In Jeong ,  O-Sok Song ,  Sung-Ho Choi ,  Gert-Jan Van Lieshout ,  Himke Van Der Velde

发明人： Kyeong-In Jeong ,  O-Sok Song ,  Sung-Ho Choi ,  Gert-Jan Van Lieshout ,  Himke Van Der Velde

IPC分类号： H04Q7/20

CPC分类号： H04W76/10 ,  H04W8/08 ,  H04W28/06 ,  H04W52/0251 ,  H04W76/27 ,  Y02D70/1224 ,  Y02D70/1242 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/164 ,  Y02D70/23

摘要： Disclosed is an apparatus and a method for radio connection setup in a mobile communication system. In the method, a UE reports mobility information to a network, and the network performs according to the mobility information of the UE. Therefore, it is possible to reduce complexity of the UE and reduce the waste in power consumption thereof, and reduce the signaling overhead of the network, thereby achieving efficient use of resources.

摘要翻译： 公开了一种移动通信系统中无线电连接建立的装置和方法。 在该方法中，UE向网络报告移动性信息，网络根据UE的移动性信息进行。 因此，可以降低UE的复杂度并减少其功耗的浪费，并减少网络的信令开销，从而实现资源的有效利用。