Method for robust handoff in wireless communication system
    11.
    发明专利
    Method for robust handoff in wireless communication system 有权
    无线通信系统中稳健手动的方法

    公开(公告)号:JP2010226732A

    公开(公告)日:2010-10-07

    申请号:JP2010096925

    申请日:2010-04-20

    CPC classification number: H04W36/18 H04B17/318 H04W36/30

    Abstract: PROBLEM TO BE SOLVED: To provide a communication system capable of completing soft hand-off, even when a communication link between an active base station and a mobile station deteriorates before the mobile station receives a handoff direction message. SOLUTION: A device for wireless communications (hereinafter referred to as device) maintains a list of base stations X that the mobile station is in communication with, referred to as an "Active Set". Further, the device maintains another list of base stations Y close to the base stations X in the Active Set. The list is called a "Neighbor Set". A memory in the device includes information which enables the device to demodulate information transmitted from the base stations Y in the Neighbor Set. When a base station Y is included in a pilot strength measurement message (PSMM), the device places the base station Y in the Active Set. COPYRIGHT: (C)2011,JPO&INPIT

    Abstract translation: 要解决的问题:即使在移动台接收到切换方向消息之前,即使在活动基站和移动站之间的通信链路恶化的情况下,也可以提供能够完成软越区切换的通信系统。 解决方案:用于无线通信的设备(以下称为设备)维护移动台与之通信的基站X的列表,称为“活动集”。 此外,设备保持靠近活动集合中的基站X的基站Y的另一个列表。 列表被称为“邻居集”。 设备中的存储器包括使设备能够解调从邻居集中的基站Y发送的信息的信息。 当基站Y包含在导频强度测量消息(PSMM)中时,设备将基站Y置于活动集中。 版权所有(C)2011,JPO&INPIT

    Method and apparatus for monitoring link activity to prevent system deadlock in dispatch system
    12.
    发明专利
    Method and apparatus for monitoring link activity to prevent system deadlock in dispatch system 有权
    用于监控链路活动以防止系统死锁的方法和装置

    公开(公告)号:JP2010068539A

    公开(公告)日:2010-03-25

    申请号:JP2009266351

    申请日:2009-11-24

    CPC classification number: H04W4/10 H04W76/005

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for monitoring link activity to prevent system deadlock in a dispatch system. SOLUTION: The method and an apparatus are provided to prevent system deadlock in a dispatch system by monitoring link activity. The dispatch system is comprised of remote units 10, 20, 22 which communicate with each other by broadcasting one at a time to the group. The remote unit 10 communicates with the other remote units through at least one base station 44. A communications manager 40 grants the remote unit 10 to be an exclusive system talker upon request through the base station servicing the requesting remote unit 44. The base station 44 monitors a series of data from the remote unit designated as the system talker 10 to detect voice activity. The base station 44 sends a surrogate request to the communications manager 40 to relinquish the system talker privilege if the voice activity falls below a predetermined threshold. COPYRIGHT: (C)2010,JPO&INPIT

    Abstract translation: 要解决的问题:提供用于监视链路活动以防止调度系统中的系统死锁的方法和装置。 解决方案:提供了通过监视链路活动来防止调度系统中的系统死锁的方法和装置。 调度系统由远程单元10,20,22组成,远程单元10,20,22通过一次一个地向组进行广播而相互通信。 远程单元10通过至少一个基站44与其他远程单元进行通信。通信管理器40通过服务于请求的远程单元44的基站,请求远程单元10成为专用系统讲话者。基站44 监视来自指定为系统讲话者10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44向通信管理器40发送替代请求以放弃系统讲话者特权。 版权所有(C)2010,JPO&INPIT

    Method and apparatus for preserving power of remote unit in dispatch system
    15.
    发明专利
    Method and apparatus for preserving power of remote unit in dispatch system 审中-公开
    用于在分配系统中保护远程单元的功率的方法和装置

    公开(公告)号:JP2008283690A

    公开(公告)日:2008-11-20

    申请号:JP2008127461

    申请日:2008-05-14

    CPC classification number: H04W52/0238 H04W4/10 H04W76/005 Y02D70/00

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for preserving power of a remote unit in a dispatch system.
    SOLUTION: To reduce the power consumption of a remote unit in a dispatch system, the remote unit enters a sleep state. A base station (32) transmits a forward link broadcast signal and monitors a common access channel. A first remote unit (10) continually receives and decodes the forward link broadcast signal and judges whether the forward link broadcast signal includes active signals (106). If the remote unit judges that the forward link broadcast signal includes no active signals for a duration T1, the first remote unit enters a sleep mode (148). In the sleep mode, the remote unit sporadically receives and decodes the forward link broadcast signal. If this remote unit or any other remote unit on the same net presses a push-to-talk button (128, 130), it transmits a message on the common access channel.
    COPYRIGHT: (C)2009,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于在调度系统中保持远程单元的功率的方法和装置。

    解决方案:为了减少调度系统中的远程单元的功耗,远程单元进入睡眠状态。 基站(32)发送前向链路广播信号并监视公共接入信道。 第一远程单元(10)连续地接收和解码前向链路广播信号,并且判断前向链路广播信号是否包括有效信号(106)。 如果远程单元判断前向链路广播信号在持续时间T1内不包括活动信号,则第一远程单元进入休眠模式(148)。 在睡眠模式下,远程单元偶尔接收并解码前向链路广播信号。 如果该远程单元或同一网络上的任何其他远程单元按下一键通按钮(128,130),则在公共接入信道上发送消息。 版权所有(C)2009,JPO&INPIT

    Method and device providing bit total integrity, and synchronous data transmission on channel not holding synchronization
    16.
    发明专利
    Method and device providing bit total integrity, and synchronous data transmission on channel not holding synchronization 有权
    提供总共完整性的方法和设备,以及不保存同步信道的同步数据传输

    公开(公告)号:JP2007274677A

    公开(公告)日:2007-10-18

    申请号:JP2007042473

    申请日:2007-02-22

    CPC classification number: H04L7/0083 H04J3/0632

    Abstract: PROBLEM TO BE SOLVED: To provide a bit total integrity and a synchronous data transmission on a channel which does not hold synchronization.
    SOLUTION: A fixed rate bitstream formed by a terminal equipment is provided to a communication unit. A first data frame containing a first set of bit and a value of a first length region, a second data frame containing a second set of bit and a second length region, and a third data frame containing a third set of bit and a value of a third length region, are formed. The first, the second and the third data frames are transmitted to a base station, and the first set of bit from the first frame and a set of filling bits of a number equal to the maximum number of bit contained in any frame are put into queue. The number of set of a second bit of the third data frame is determined, based on the value of the first length region and the value of the third length region, and excess filling bits are overwritten in the queue in the set of the third bit.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:在不保持同步的信道上提供位总的完整性和同步数据传输。 解决方案:由终端设备形成的固定速率比特流被提供给通信单元。 第一数据帧,包含第一组位和第一长度区域的值,第二数据帧包含第二组位和第二长度区域,第三数据帧包含第三组位和值 形成第三长度区域。 将第一,第二和第三数据帧发送到基站,并且将来自第一帧的第一组比特和等于任何帧中包含的最大比特数的一组填充比特放入 队列。 基于第一长度区域的值和第三长度区域的值确定第三数据帧的第二位的集合的数量,并且在第三位的集合中的队列中覆盖多余的填充位 。 版权所有(C)2008,JPO&INPIT

    Method and apparatus for efficient access in dispatch system
    17.
    发明专利
    Method and apparatus for efficient access in dispatch system 有权
    分配系统中有效访问的方法和装置

    公开(公告)号:JP2007202167A

    公开(公告)日:2007-08-09

    申请号:JP2007034844

    申请日:2007-02-15

    CPC classification number: H04W4/10 H04W76/005

    Abstract: PROBLEM TO BE SOLVED: To provide a method and apparatus for performing efficient system access in a dispatch system.
    SOLUTION: A communications manager (40) grants an exclusive system talker privilege to one remote unit (10) in the system at a time. After a first pre-determined time has elapsed, any other remote unit (20, 22) can request the exclusive system talker privilege and become the exclusive system talker. The exclusive system talker privilege is revoked by the communications manager (40) to any remote unit who retains the exclusive system talker privilege for more than a second pre-determined amount of time. The exclusive system talker privilege is also revoked upon the release of a push-to-talk button on a remote unit (10). Furthermore, a base station (44) in communication with a remote unit (10) designated as the exclusive system talker generates a surrogate relinquishment request to the communications manager (40) when the exclusive system talker travels outside the coverage area of the system.
    COPYRIGHT: (C)2007,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种用于在调度系统中执行有效系统访问的方法和装置。 解决方案:通信管理器(40)一次向系统中的一个远程单元(10)授予专用系统讲话者特权。 在第一个预定时间过去之后,任何其他远程单元(20,22)可以请求排他系统讲话者的特权并成为专用系统讲话者。 通信管理器(40)将独占系统讲话者权限撤销到任何保留专用系统讲话者特权超过第二预定时间量的远程单元。 在远程单元(10)上释放按键通话按钮时,专用系统讲话者权限也被撤销。 此外,当专用系统讲话者在系统的覆盖区域外行进时,与指定为排他系统讲话者的远程单元(10)通信的基站(44)生成代理放弃请求给通信管理器(40)。 版权所有(C)2007,JPO&INPIT

    UPDATE OF OVERHEAD MESSAGE BY DISTRIBUTED CONTROL

    公开(公告)号:JP2002077990A

    公开(公告)日:2002-03-15

    申请号:JP2000245901

    申请日:2000-08-14

    Applicant: QUALCOMM INC

    Abstract: PROBLEM TO BE SOLVED: To provide a system and a method, which give a simple but effective technology for communication an overhead message in a wireless communication system supplying access to a distributed network while band width is saved and power consumption is set to be minimum. SOLUTION: A wireless base station connected to the distributed network transmits a series of signatures in the overhead message to a mobile unit. The mobile unit wakes up and receives the signatures and compares them with a signatures stored in the mobile unit. When the signatures received by the mobile unit differ from the signatures stored in the mobile unit, the mobile unit receives the overhead message transmitted by the wireless base station while it is kept wake up. When the signatures received by the mobile unit are the same as those stored in the mobile unit, the mobile unit returns to sleep.

    Overhead message update with decentralized control
    19.
    发明专利
    Overhead message update with decentralized control 审中-公开
    OTHHEAD消息更新与分散控制

    公开(公告)号:JP2013192248A

    公开(公告)日:2013-09-26

    申请号:JP2013101645

    申请日:2013-05-13

    CPC classification number: Y02D70/00

    Abstract: PROBLEM TO BE SOLVED: To provide a system and method for providing a simple but effective technique for communicating overhead messages in a wireless communication system providing access to a decentralized network, while minimizing power consumption as well as saving bandwidth.SOLUTION: A wireless base station which is connected to a decentralized network transmits a sequence of signatures for overhead messages to a mobile unit. The mobile unit wakes up, receives the signatures and compares them to signatures stored at the mobile unit. If the signatures received by the mobile unit are different from the signatures stored at the mobile unit, the mobile unit stays awake to receive the overhead messages to be transmitted by the wireless base station. If the signatures received by the mobile unit are the same as the signatures stored at the mobile unit, the mobile unit goes back to sleep.

    Abstract translation: 要解决的问题:提供一种系统和方法,用于在提供对分散网络的访问的无线通信系统中提供用于传送开销消息的简单而有效的技术,同时最小化功耗以及节省带宽。解决方案:一种无线基站 连接到分散网络将开销消息的签名序列发送到移动单元。 移动单元唤醒,接收签名并将其与移动单元上存储的签名进行比较。 如果由移动单元接收到的签名与存储在移动单元中的签名不同,则移动单元保持唤醒以接收由无线基站发送的开销消息。 如果由移动单元接收到的签名与存储在移动单元处的签名相同,则移动单元返回睡眠状态。

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