Method for improving dispatch response time
    31.
    发明授权
    Method for improving dispatch response time 有权
    改善调度响应时间的方法

    公开(公告)号:US06606557B2

    公开(公告)日:2003-08-12

    申请号:US10008634

    申请日:2001-12-07

    申请人: Michael D. Kotzin

    发明人: Michael D. Kotzin

    IPC分类号: G01C2134

    CPC分类号: G08G1/202

    摘要: A dispatch system generally provides a means for collecting destination information, selecting a dispatch assignment (104) to be dispatched to the destination (102) and dispatching the selected assignment. In situations where the response time of the assignment is a critical factor, selecting the assignment with the shortest response time is desired. An improved method for improving response time of an assignment with the shortest response time incorporates assignment location, a road condition associated with each assignment, and the traffic conditions associated with each assignment. Event information is also considered in determining the best route and travel time from the mobile entity to the destination.

    摘要翻译: 调度系统通常提供用于收集目的地信息的方法,选择要发送到目的地(102)的调度分配(104)并且分派所选择的分配。 在分配的响应时间是关键因素的情况下,需要以最短的响应时间选择分配。 用于改善具有最短响应时间的分配的响应时间的改进方法包括分配位置,与每个分配相关联的道路状况以及与每个分配相关联的交通状况。 在确定从移动实体到目的地的最佳路线和旅行时间时也考虑到事件信息。

    Method and system for aiding in the location of a subscriber unit in a spread spectrum communication system
    32.
    发明授权
    Method and system for aiding in the location of a subscriber unit in a spread spectrum communication system 失效
    用于辅助扩频通信系统中的用户单元的位置的方法和系统

    公开(公告)号:US06226317B1

    公开(公告)日:2001-05-01

    申请号:US09050283

    申请日:1998-03-30

    IPC分类号: H04B169

    摘要: A mobile subscriber unit (MS) location method and system in a spread spectrum channel coding system uses a known spread spectrum location beacon channel (34) that is time division multiplexed with normal code division multiplexed channels (36). Each base station (12, 14 and 16) in a defined service area transmits the known time division multiplexed spread spectrum location beacon signal (34), such as a known location channel, as a spread spectrum location beacon signal at a same time interval. Mobile subscriber units (18) receive the spread spectrum location beacon signal (34) time division multiplexed with the normal CDMA channels (36) and determine their own location using location techniques such as trilateration. Preferably, all of a base station's transmit power is assigned to this special known location channel (34) during transmission.

    摘要翻译: 扩频信道编码系统中的移动用户单元(MS)定位方法和系统使用与普通码分多路复用信道(36)进行时分复用的已知扩频位置信标信道(34)。 在定义的服务区域中的每个基站(12,14和16)以已知的时分多路复用扩展频谱位置信标信号(34)作为扩展频谱位置信标信号以相同的时间间隔发送,例如已知的位置信道。 移动用户单元(18)接收与正常CDMA信道(36)时分复用的扩频位置信标信号(34),并使用诸如三边测距的定位技术来确定它们自己的位置。 优选地,在传输期间,将基站的所有发射功率分配给该特殊的已知位置信道(34)。

    Apparatus and method for transmitting signals in a communication system
    33.
    发明授权
    Apparatus and method for transmitting signals in a communication system 失效
    用于在通信系统中发送信号的装置和方法

    公开(公告)号:US06173005B2

    公开(公告)日:2001-01-09

    申请号:US08923190

    申请日:1997-09-04

    IPC分类号: H04B1707

    摘要: Orthogonal transmit diversity is implemented by employing a data splitter (803) to subdivide channel information (801) into at least a first portion of bits (802) and a second portion of bits (804). Each portion is spread with its own Walsh code for eventual transmission to a mobile station via a predetermined carrier frequency. When the number of bits in the first and second portion (802, 804) are small, separate Walsh codes are used to maintain orthogonality. When the number of bits in the first and second portion (802, 804) are relatively large, a time-division multiplex transmission is used to maintain orthogonality. A controller (809) controls the subdivision of the channel information and also an interleaver (308) to further enhance the effects of the diversity transmission. Control information related to the subdivision is transmitted to the mobile station so the channel information can be accurately reconstructed prior to decoding.

    摘要翻译: 通过采用数据分离器(803)将信道信息(801)细分为比特(802)和比特(804)的第二部分的至少第一部分来实现正交发射分集。 每个部分用自己的沃尔什码扩展,以便经由预定的载波频率最终传输到移动台。 当第一和第二部分(802,804)中的比特数较少时,使用单独的沃尔什码来维持正交性。 当第一和第二部分(802,804)中的位数相对较大时,使用时分复用传输来保持正交性。 控制器(809)控制信道信息的细分以及交织器(308),以进一步增强分集传输的影响。 将与细分相关的控制信息发送到移动台,使得可以在解码之前准确地重构信道信息。

    Method and apparatus for preempting burst frequency assignments in a
frequency-hopping communication system
    34.
    发明授权
    Method and apparatus for preempting burst frequency assignments in a frequency-hopping communication system 失效
    用于在跳频通信系统中抢占突发频率分配的方法和装置

    公开(公告)号:US6157669A

    公开(公告)日:2000-12-05

    申请号:US321382

    申请日:1994-10-11

    申请人: Michael D. Kotzin

    发明人: Michael D. Kotzin

    摘要: A frequency-hopping communication system preempts certain burst frequency assignments. The communication system is capable of communicating to mobile stations (114, 115) via a radio channel (121) in a TDM/TDMA mode. A plurality of mobile stations are assigned burst frequencies for transmission during timeslots of the TDMA system. To support additional mobile stations without additional burst frequencies, the communication system preempts the burst frequency assignment from the plurality of mobile stations, and utilizes the preempted assignment to support communication to the additional mobile stations.

    摘要翻译: 跳频通信系统抢占特定的突发频率分配。 通信系统能够以TDM / TDMA模式经由无线电信道(121)与移动台(114,115)进行通信。 在TDMA系统的时隙期间,为多个移动台分配用于传输的突发频率。 为了支持没有附加突发频率的附加移动站,通信系统抢占来自多个移动站的突发频率分配,并利用抢占分配来支持与附加移动站的通信。

    Infrastructure transceiver and method for configuration based on RF
operating circumstances
    35.
    发明授权
    Infrastructure transceiver and method for configuration based on RF operating circumstances 失效
    基于射频操作环境的基础收发器和配置方法

    公开(公告)号:US5940768A

    公开(公告)日:1999-08-17

    申请号:US758270

    申请日:1996-11-25

    IPC分类号: H04W16/10 H04B7/26

    CPC分类号: H04W16/10

    摘要: In a radio frequency communication system (100), infrastructure transceivers operate in a configuration mode (301-306) and an active mode (307). When in the configuration mode, a given infrastructure transceiver (106-109) derives information regarding RF operating circumstances proximal to the infrastructure transceiver. The information regarding the RF operating circumstances, information regarding the infrastructure transceiver itself, and optionally information regarding present location of the infrastructure transceiver, is transmitted to a communication system configuration server (105). In response, information regarding operation of the infrastructure transceiver is received by the infrastructure transceiver. When in the given infrastructure transceiver is in the active mode, the information regarding operation of the infrastructure transceiver is used to support communications in the RF communication system. With each infrastructure transceiver operating in this manner, the radio frequency communication system can be automatically configured.

    摘要翻译: 在射频通信系统(100)中,基础收发器以配置模式(301-306)和活动模式(307)工作。 当处于配置模式时,给定的基础设施收发器(106-109)导出关于基础设施收发器附近的RF操作环境的信息。 关于RF操作环境的信息,关于基础设施收发器本身的信息,以及关于基础设施收发器的当前位置的可选信息,被传送到通信系统配置服务器(105)。 作为响应,基础设施收发器接收关于基础架构收发器的操作的信息。 当在给定的基础设施收发器处于活动模式时,关于基础设施收发器的操作的信息用于支持RF通信系统中的通信。 通过以这种方式操作每个基础收发器,可以自动配置射频通信系统。

    Method and apparatus for maintaining call in a communication system
    36.
    发明授权
    Method and apparatus for maintaining call in a communication system 失效
    用于在通信系统中维护呼叫的方法和装置

    公开(公告)号:US5822699A

    公开(公告)日:1998-10-13

    申请号:US926248

    申请日:1997-09-05

    IPC分类号: H04W36/26 H04Q7/20

    CPC分类号: H04W36/26

    摘要: A method of maintaining call quality in a communication system by communicating between a base site (101) and a communication unit (113) on a first channel. The communication unit (113) monitors the downlink communication signal (116) transmitted by the base site (101) and determines a characteristic of the first channel. The communication unit (113) is then handed off to a second channel having a less aggressive reuse pattern, based on the characteristic of the first channel.

    摘要翻译: 一种通过在第一信道上的基站(101)和通信单元(113)之间进行通信来保持通信系统中的呼叫质量的方法。 通信单元(113)监视由基站(101)发送的下行链路通信信号(116),并确定第一信道的特性。 然后,基于第一信道的特性,将通信单元(113)切换到具有较不具有攻击性的重用模式的第二信道。

    Method and apparatus for dynamic load balancing using handoff
    37.
    发明授权
    Method and apparatus for dynamic load balancing using handoff 失效
    使用切换动态负载均衡的方法和装置

    公开(公告)号:US5796722A

    公开(公告)日:1998-08-18

    申请号:US649093

    申请日:1996-05-17

    CPC分类号: H04W28/26 H04W36/08 H04W36/20

    摘要: To mitigate the adverse affects of the load imbalance phenomenon prevalent in spread spectrum, multi-carrier wireless communication systems, the system beneficially employs the use of handoff as a means for balancing the call traffic (commonly referred to as "load") among a plurality of carriers within the communication system. The multi-carrier wireless communication system monitors a plurality of metrics corresponding to the loading of each of the plurality of carriers in the communication system and, based upon the metrics, will handoff call traffic to and between the plurality of carriers, thereby mitigating the adverse effects associated with the load imbalance, in accordance with the invention.

    摘要翻译: 为了减轻扩展频谱,多载波无线通信系统中普遍存在的负载不平衡现象的不利影响,该系统有益地采用了切换作为平衡多个呼叫业务(通常称为“负载”)的手段 的通信系统中的运营商。 多载波无线通信系统监视与通信系统中的多个载波中的每一个载荷相对应的多个量度,并且基于这些度量将切换多个载波之间和之间的呼叫业务,从而减轻不利的 根据本发明,与负载不平衡相关的影响。

    Method and apparatus for transmitting information for multiple
independent users in a communication system
    38.
    发明授权
    Method and apparatus for transmitting information for multiple independent users in a communication system 失效
    用于在通信系统中为多个独立用户发送信息的方法和装置

    公开(公告)号:US5627830A

    公开(公告)日:1997-05-06

    申请号:US40790

    申请日:1993-03-31

    申请人: Michael D. Kotzin

    发明人: Michael D. Kotzin

    IPC分类号: H04B7/26 H04W36/30 H04J3/16

    CPC分类号: H04W36/30

    摘要: An RF cellular communication system employing offset frame synchronization between cells, any cell being omni-directional or directional, such that a frame at one cell is offset by an integral number of frames from another cell; the system incorporating multiplexed speech transcoding of traffic channels from multiple cells while supporting stringent delay requirements. Offset frame synchronization for providing rapid mobile assisted handoff.

    摘要翻译: 一种使用小区之间的偏移帧同步的RF蜂窝通信系统,任何小区是全向或定向的,使得一个小区的帧被来自另一个小区的整数个帧偏移; 该系统结合来自多个小区的业务信道的多路复用语音转码,同时支持严格的延迟要求。 用于提供快速移动辅助切换的偏移帧同步。

    Method and apparatus for operating with a hopping control channel in a
communication system
    40.
    发明授权
    Method and apparatus for operating with a hopping control channel in a communication system 失效
    用于在通信系统中与跳频控制信道一起操作的方法和装置

    公开(公告)号:US5506863A

    公开(公告)日:1996-04-09

    申请号:US112820

    申请日:1993-08-25

    摘要: A communication unit for use in a communication system is provided which includes a hopping mechanism which hops communication frames over a plurality of carrier frequencies according to a predetermined hopping pattern. At least one of the communication frames preferably includes a synchronization channel time slot having data bits from which the predetermined hopping pattern may be derived. In addition, a communication unit is provided which includes a signal acquisition mechanism for initially acquiring a predetermined hopping pattern that specifies the sequence over which hop frames are hopped over a plurality of carrier frequencies. Also, this communication unit includes a hopping mechanism for hopping receiving frequency according to the predetermined hopping pattern such that a control channel may be detected. In an alternative embodiment, either communication unit may derive the predetermined hopping pattern from detected global position satellite information.

    摘要翻译: 提供一种在通信系统中使用的通信单元,其包括跳频机制,该跳频机制根据预定的跳频模式跳越多个载波频率上的通信帧。 通信帧中的至少一个优选地包括具有数据比特的同步信道时隙,可以从其导出预定的跳频模式。 此外,提供一种通信单元,其包括用于最初获取预定跳频图案的信号获取机构,该预定跳频图案指定在多个载波频率上跳过跳帧的序列。 此外,该通信单元包括跳频机构,用于根据预定的跳频模式跳频接收频率,从而可以检测控制信道。 在替代实施例中,通信单元可以从检测到的全球定位卫星信息导出预定的跳频模式。