METHODS AND SYSTEMS FOR PROVIDING ENHANCED POSITION LOCATION IN WIRELESS COMMUNICATIONS
    91.
    发明申请
    METHODS AND SYSTEMS FOR PROVIDING ENHANCED POSITION LOCATION IN WIRELESS COMMUNICATIONS 有权
    在无线通信中提供增强位置的方法和系统

    公开(公告)号:US20090160709A1

    公开(公告)日:2009-06-25

    申请号:US12361273

    申请日:2009-01-28

    IPC分类号: G01S1/00

    摘要: Embodiments disclosed herein relate to methods and systems for providing improved position-location (e.g., time-of-arrival) measurement and enhanced position location in wireless communication systems. In an embodiment, an access point may replace information (e.g., data) transmission by a “known” transmission (or “reference transmission”) at a predetermined time known to access terminals in the corresponding sectors. The access terminals may use the received reference transmission to perform a position-location measurement, and report back the measured information. The access point may also send a reference transmission on demand, e.g., in response to a request from an access terminal in need for a location-based service.

    摘要翻译: 本文公开的实施例涉及用于在无线通信系统中提供改进的位置定位(例如到达时间)测量和增强的位置定位的方法和系统。 在一个实施例中,接入点可以在对已知的传输(或“参考传输”)在对应扇区中的接入终端已知的预定时间内替换信息(例如,数据)传输。 接入终端可以使用接收到的参考传输来执行位置测量,并且返回所测量的信息。 接入点还可以例如响应于需要基于位置的服务的接入终端的请求,按需发送参考传输。

    Method and apparatus of providing a single state mobile unit in a modem connection comprising a wireless link
    94.
    发明授权
    Method and apparatus of providing a single state mobile unit in a modem connection comprising a wireless link 失效
    在包括无线链路的调制解调器连接中提供单个状态移动单元的方法和装置

    公开(公告)号:US06914965B1

    公开(公告)日:2005-07-05

    申请号:US08316158

    申请日:1994-09-30

    CPC分类号: H04N1/00307

    摘要: An apparatus and method of providing a reliable method of entering command mode and executing modem commands with a modem comprising a wireless communications channel. A wireless communications channel inserted into a standard modem configuration splits the functions of the modem between a mobile unit and a base station. When the system enters command mode, only the base station equipment changes state. The mobile unit continues to operate in the same manner as when the system is in data mode. Any command issued in command mode requiring action from the mobile unit is first sent to the base station. The base station recognizes that the command is intended for the mobile unit and sends a mobile unit-command over an independent private command channel to the mobile unit. The mobile unit constantly monitors the private channel regardless of the state of the system. The mobile unit receives the command on the private command channel, executes the command, and returns any required result code to the terminal equipment.

    摘要翻译: 一种提供输入命令模式和使用包括无线通信信道的调制解调器执行调制解调器命令的可靠方法的装置和方法。 插入到标准调制解调器配置中的无线通信信道在移动单元和基站之间分离调制解调器的功能。 当系统进入命令模式时,只有基站设备改变状态。 移动单元继续以与系统处于数据模式时相同的方式运行。 在命令模式下发出的任何要求移动单元需要动作的命令首先被发送到基站。 基站识别出该命令用于移动单元,并通过独立的私有命令信道向移动单元发送移动单元命令。 无论系统的状态如何,移动单元都会持续监控私有通道。 移动单元在专用命令通道上接收命令,执行命令,并向终端设备返回任何所需的结果代码。

    Method and apparatus for signal combining in a high data rate communication system
    95.
    发明授权
    Method and apparatus for signal combining in a high data rate communication system 有权
    在高数据速率通信系统中信号组合的方法和装置

    公开(公告)号:US06804210B2

    公开(公告)日:2004-10-12

    申请号:US10357986

    申请日:2003-02-04

    IPC分类号: H04Q700

    摘要: Reverse link busy bits are independently generated by each base station and indicate whether a base station has reached a reverse link capacity limit. A remote station combines multipath components of the reverse link busy bits in its Active Set and in response transmits a reverse link signal only when all of the reverse link busy bits indicate that the base stations in the Active Set have reverse link capacity. In an embodiment, the remote station weights the reverse link busy signals in accordance with the signal strength of the transmitting base station and determines whether to transmit based on the weighted sum of the busy signals. In an embodiment, the remote station weights the reverse link busy signals in accordance with the signal strength of the transmitting base station and determines a maximum reverse link data rate based on the weighted sum of the busy signals.

    摘要翻译: 反向链路忙位由每个基站独立生成,并指示基站是否达到了反向链路容量限制。 远程站组合其活动集中的反向链路忙比特的多路径分量,并且响应仅在所有反向链路忙比特指示活动集中的基站具有反向链路容量时才发送反向链路信号。 在一个实施例中,远程站根据发射基站的信号强度对反向链路忙信号进行加权,并根据忙信号的加权和确定是否发送。 在一个实施例中,远程站根据发射基站的信号强度对反向链路忙信号进行加权,并且基于忙信号的加权和确定最大反向链路数据速率。

    Method and apparatus for variable and fixed forward link rate control in a mobile radio communication system
    96.
    发明授权
    Method and apparatus for variable and fixed forward link rate control in a mobile radio communication system 有权
    移动无线电通信系统中可变和固定的前向链路速率控制的方法和装置

    公开(公告)号:US06560211B2

    公开(公告)日:2003-05-06

    申请号:US09748319

    申请日:2000-12-22

    IPC分类号: H04Q700

    摘要: A method and apparatus for controlling a data rate associated with the transmission of information from a base station to a mobile station in a mobile radio communication system. The mobile station alternately receives information from a base station either in a variable rate mode or a fixed rate mode. The transmission rate from a base station in the variable rate mode varies between successive data transmit intervals, and the transmission rate from a base station in the fixed rate mode remains fixed between successive data transmit intervals. Data is transmitted from a first base station to the mobile station in the variable rate mode until the first base station is unable to receive variable data rate control information from the mobile station.

    摘要翻译: 一种用于在移动无线电通信系统中控制与从基站到移动台的信息传输相关联的数据速率的方法和装置。 移动台以可变速率模式或固定速率模式从基站交替地接收信息。 来自基站的可变速率模式的传输速率在连续的数据发送间隔之间变化,并且来自固定速率模式的基站的传输速率在连续的数据发送间隔之间保持固定。 数据以可变速率模式从第一基站发送到移动台,直到第一基站不能从移动台接收可变数据速率控制信息。

    Method for robust handoff in wireless communication system
    97.
    发明授权
    Method for robust handoff in wireless communication system 有权
    无线通信系统中鲁棒切换的方法

    公开(公告)号:US06360100B1

    公开(公告)日:2002-03-19

    申请号:US09158665

    申请日:1998-09-22

    IPC分类号: H04Q720

    摘要: A communication system that allows a soft handoff to be completed, even when the communications link between the active base station and the mobile station deteriorates before the mobile station has received the handoff direction message. The mobile station maintains a list of base stations that the mobile station is in communication with, referred to as an “Active Set”. In addition, the mobile station maintains another list of base stations that are proximate to the base stations in the active set. This list is referred to as the “Neighbor Set”. A memory within the mobile station includes information that would allow the mobile station to demodulate information transmitted from those base stations on the neighbor set. In accordance with the disclosed method and apparatus, the mobile station places a base station in the active set upon including the base station in a pilot strength measurement message (PSMM). The mobile station monitors transmissions from all of the base stations on the active set to receive a handoff direction message (HDM).

    摘要翻译: 即使在移动台已经接收到切换方向消息之前,即使当活动基站和移动台之间的通信链路恶化时,也能够完成软越区切换的通信系统。 移动台保持移动台与之通信的基站的列表,称为“活动集”。 此外,移动站维护在活动集合中靠近基站的另一个基站列表。 该列表被称为“邻居集”。 移动站内的存储器包括允许移动台解调从邻近组上的那些基站发送的信息的信息。 根据所公开的方法和装置,移动台在将基站包括在导频强度测量消息(PSMM)中时将基站放置在活动集中。 移动站监视来自主动集合上的所有基站的传输以接收切换方向消息(HDM)。

    Method and apparatus for monitoring link activity to prevent system
deadlock in a dispatch system
    98.
    发明授权
    Method and apparatus for monitoring link activity to prevent system deadlock in a dispatch system 失效
    监控链路活动以防止调度系统中的系统死锁的方法和装置

    公开(公告)号:US5983114A

    公开(公告)日:1999-11-09

    申请号:US669778

    申请日:1996-06-26

    IPC分类号: H04B7/26 H04W4/10 H04W84/08

    CPC分类号: H04W4/10 H04W76/005

    摘要: Method and apparatus to prevent system deadlock in a dispatch system by monitoring link activity. The dispatch system is comprised of a set of remote units which communicate with each other by broadcasting one at a time to the group. A remote unit communicates with the other remote units through at least one base station. A communications manager grants a remote unit exclusive system talker status upon request through the base station servicing the requesting remote unit. The base station monitors a series of data from the remote unit designated as the system talker to detect voice activity. The base station sends a surrogate request to the communications manager to relinquish the system talker privilege if the voice activity falls below a predetermined threshold.

    摘要翻译: 通过监测链路活动来防止调度系统中系统死锁的方法和装置。 调度系统由一组远程单元组成,它们通过一次一个地向组进行通信来进行通信。 远程单元通过至少一个基站与其他远程单元进行通信。 一个通信管理器通过服务请求的远程单元的基站请求,授予远程单元专用系统讲话者状态。 基站监视来自指定为系统讲话者的远程单元的一系列数据,以检测语音活动。 如果语音活动低于预定阈值,则基站向通信管理器发送代理请求以放弃系统讲话者特权。

    System and method for reducing bottlenecks in low data rate networks
processing facsimile data transmission
    99.
    发明授权
    System and method for reducing bottlenecks in low data rate networks processing facsimile data transmission 失效
    用于减少低数据速率网络处理传真数据传输的瓶颈的系统和方法

    公开(公告)号:US5566000A

    公开(公告)日:1996-10-15

    申请号:US484808

    申请日:1995-06-07

    摘要: System and method for minimizing data bottlenecks in Low Data Rate Networks (LDRNs) that communicate facsimile transmissions. An LDRN is a facsimile network having a transmission data rate less than the data rate of the FAX machines serviced by the network. The system and method can be implemented in any type of LDRN, including analog and digital wired LDRNs, as well as analog and digital wireless (e.g., cellular) LDRNs. The system and method involve processing the facsimile transmissions in order to make the data rates of the LDRN and the FAX machines compatible, thereby minimizing any potential facsimile data bottlenecks that may occur in the LDRN due to its slower data rate. Lines of data are transferred by the LDRN only when the amount of data they contain is less than or equal to a line threshold value, which is adjusted according to the amount of data bottleneck experienced by the LDRN.

    摘要翻译: 用于最小化通信传真传输的低数据速率网络(LDRN)中的数据瓶颈的系统和方法。 LDRN是具有小于由网络服务的传真机的数据速率的传输数据速率的传真网络。 该系统和方法可以在任何类型的LDRN中实现,包括模拟和数字有线LDRN,以及模拟和数字无线(例如,蜂窝)LDRN。 该系统和方法涉及处理传真传输,以便使LDRN和传真机的数据速率相容,从而最小化由于其较慢的数据速率而可能在LDRN中发生的任何可能的传真数据瓶颈。 只有LDRN的数据量小于或等于线路阈值才能由LDRN传输,根据LDRN的数据瓶颈数量进行调整。