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公开(公告)号：US07212505B2
公开(公告)日：2007-05-01
申请号：US09813099
申请日：2001-03-19
CPC分类号： H04L29/12009 , H04L29/12207 , H04L61/20 , H04W8/04 , H04W8/26 , H04W36/00 , H04W76/12 , H04W76/22 , H04W80/04 , H04W80/06
摘要： Communicating over a network includes establishing a communication path between a mobile-device in a first communication area and a server through a home-agent, and maintaining the communication path through the home agent when the mobile-device moves to a second-communication-area.
摘要翻译： 通过网络进行通信包括通过归属代理在第一通信区域中的移动设备和服务器之间建立通信路径，并且当移动设备移动到第二通信区域时，维持通过归属代理的通信路径 。
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公开(公告)号：US06987744B2
公开(公告)日：2006-01-17
申请号：US09997282
申请日：2001-11-29
摘要： A system of the present invention is operative for locating a wireless mobile device in communication with a wireless local area network (WLAN) that includes a plurality of cells defining a wireless local area network each having an access point base station. The access point base stations communicate with wireless mobile devices using wireless communication signals as typically spread spectrum communication signals. A processor is operatively connected to each of the access point base stations and operative to process communication signals transmitted from a mobile device and determine which signals are first-to-arrive signals based on a common timing signal and conduct differentiation of the first-to-arrive signals to locate the mobile device.
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公开(公告)号：US07027810B2
公开(公告)日：2006-04-11
申请号：US10238635
申请日：2002-09-11
申请人： Koji Shirai
发明人： Koji Shirai
CPC分类号： H04B17/318 , H04B17/21 , H04W52/221
摘要： A method of determining the present electric field state of a mobile station also in view of an uplink electric field state is disclosed. A TPC bit counter is supplied with a received signal processed by a baseband processor, and counts TPC bits contained in one radio frame. An electric field state determining unit measures the electric field strength of the received signal from the base station which has been received by an RF receiver. A received electric field strength measuring unit determines a TPC bit evaluation value from the TPC bit sum calculated by TPC bit counter, determines a received electric field strength evaluation value from the received electric field strength measured by the electric field state determining unit, multiplies the TPC bit evaluation value by the received electric field strength evaluation value to calculates an electric field state evaluation value, and controls an alarm unit, a display unit, and an LED unit based on the calculated electric field state evaluation value for thereby indicating the electric field state.
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公开(公告)号：US06963918B1
公开(公告)日：2005-11-08
申请号：US09608460
申请日：2000-06-29
申请人： Kent K. Leung
发明人： Kent K. Leung
IPC分类号： G06F15/16 , H04L12/56 , H04L29/06 , H04W8/06 , H04W8/26 , H04W48/08 , H04W60/00 , H04W80/04 , H04W80/10 , H04Q7/216
CPC分类号： H04L65/1009 , H04L29/06027 , H04W8/06 , H04W8/26 , H04W48/08 , H04W60/00 , H04W80/04 , H04W80/10
摘要： An invention is disclosed that includes a Foreign Agent that supports Mobile IP and is configured to enable a node visiting the Foreign Agent to send IP packets including voice information via an IP address obtained from an H.323 gateway. This is accomplished, in part, by sending an agent advertisement identifying an H.323 gateway on the foreign network. A packet is received from the node, where the packet is addressed to the H.323 gateway and requests an IP address associated with a destination. A packet including the requested IP address is forwarded to the node. An IP packet addressed to the IP address and including voice information may then be received from the node. A node visiting the Foreign is capable of sending IP packets including voice information and receives an agent advertisement identifying an H.323 gateway on a foreign network associated with the Foreign Agent. The node sends a packet addressed to the H.323 gateway, where the packet requests an IP address associated with a destination. A packet including the requested IP address is received by the node. The node may then send an IP packet addressed to the IP address and including voice information from the node.
摘要翻译： 公开了一种发明，其包括支持移动IP的外部代理，并且被配置为使访问外部代理的节点能够经由通过从H.323网关获得的IP地址来发送包括语音信息的IP分组。 这部分地通过在外部网络上发送标识H.323网关的代理广告来实现。 从节点接收分组，其中分组被寻址到H.323网关并请求与目的地相关联的IP地址。 包含所请求的IP地址的分组被转发到节点。 然后可以从节点接收寻址到IP地址并且包括语音信息的IP分组。 访问外部的节点能够发送包括语音信息的IP分组，并且在与外部代理相关联的外部网络上接收标识H.323网关的代理广告。 节点发送寻址到H.323网关的数据包，其中数据包请求与目的地相关联的IP地址。 包含所请求的IP地址的分组被节点接收。 节点然后可以发送寻址到IP地址并包括来自节点的语音信息的IP分组。
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5.发明授权Methods and apparatus for random access in multi-carrier communication systems 有权多载波通信系统中随机接入的方法和装置公开(公告)号：US08467366B2
公开(公告)日：2013-06-18
申请号：US13205579
申请日：2011-08-08
申请人： Xiaodong Li , Titus Lo , Kemin Li , Haiming Huang
发明人： Xiaodong Li , Titus Lo , Kemin Li , Haiming Huang
IPC分类号： H04Q7/216
CPC分类号： H04W74/0833 , H04L27/2602 , H04L27/2608 , H04L27/2613 , H04W52/50 , H04W74/08
摘要： Methods and apparatus in a multi-carrier cellular wireless network with random access improve receiving reliability and reduce interference of uplink signals of a random access, while improving the detection performance of a base station receiver by employing specifically configured ranging signals.
摘要翻译： 具有随机接入的多载波蜂窝无线网络中的方法和装置通过采用专门配置的测距信号来提高基站接收机的检测性能，从而提高接收可靠性并降低随机接入上行链路信号的干扰。
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公开(公告)号：US06993001B1
公开(公告)日：2006-01-31
申请号：US09646371
申请日：1999-03-17
申请人： Jeffrey Polan , Stephen G. Dick , Leonid Kazakevich , Fatih M. Ozluturk , Robert T. Regis , Richard Turner
发明人： Jeffrey Polan , Stephen G. Dick , Leonid Kazakevich , Fatih M. Ozluturk , Robert T. Regis , Richard Turner
IPC分类号： H04Q7/216
CPC分类号： H04W72/005 , H04B17/318 , H04B17/382 , H04W16/12 , H04W52/322 , H04W52/325
摘要： The present invention provides a base station architecture that is modular in configuration, lowering the initial cost of implementing a new CDMA telecommunication system for a defined geographical region while allowing for future capacity. The scalable architecture is assembled from a digital base station unit that is configured to support a plurality of simultaneous wireless calls connecting to a conventional public switched telephone network. For initial startup, two base station units are deployed for redundancy in case of a single failure. Additional base station units may be added when the need arises for extra traffic capacity. If sectorization is required, the base station units may be directionally oriented. Coupled to and remote from each base station unit are two amplified antenna modules that contain an omni-directional or an external directional antenna, a high power RF amplifier for transmitted frequencies and a low noise amplifier for received frequencies. A separate power supply module capable of supporting two base station units provides continued service in the event of a mains power outage.
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