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    • 6. 发明授权
    • Adaptive digital wireless communications network apparatus and process
    • 自适应数字无线通信网络设备和过程
    • US6097707A
    • 2000-08-01
    • US444553
    • 1995-05-19
    • Migdat I. HodzicJames M. Brennan
    • Migdat I. HodzicJames M. Brennan
    • H04L12/28H04L12/56H04J3/16
    • H04W74/0891H04W28/26H04W72/0406H04W74/06
    • A single channel wireless digital communication network [10] has a cellular topology which includes a central unit [12] ("CW") controlling communications with a plurality of remote units [14] ("TU") in a star configuration. Network access is synchronously controlled through a time division multiplexed cycle [20] of variable total duration having an up-link phase [21] of a variable number of fixed size time slots [25, 27, 27a], each pre-assigned by reservation by a remote unit, and a down-link phase [22] of a variable number of variable size slots [31a, 31b] which are adaptively utilized. The CU adaptively manages all slot assignments according to a variety of parameters. RU up-link slot reservations are confirmed by the CU in a variety of ways. During the up-link phase, RU's which did not reserve a slot on the previous up-link cycle are temporarily suspended and are then polled or periodically tested for re-entry. A repeater unit [15] ("RU") having a back-to-back coupled ccu-tu pair operates as a minicell within the major cell where major cell coverage is not broad enough to reach all major cell TU's.
    • 单通道无线数字通信网络具有蜂窝拓扑,其包括以星形配置来控制与多个远程单元[14](“TU”)的通信的中央单元[12](“CW”)。 通过具有可变数量的固定大小时隙[25,27,27a]的上行链路相位[21]的可变总持续时间的时分复用周期[20]同步控制网络接入,每个预定义 以及自适应地使用的可变数量的可变大小的时隙[31a,31b]的下行链路相位[22]。 CU根据各种参数自动管理所有插槽分配。 CU上行链路槽预留由CU以各种方式确认。 在上行链路阶段,未在上一个上行链路周期中保留时隙的RU暂时停止,然后轮询或定期测试重新进入。 具有背对背耦合CCU-TUB对的中继器单元[15](“RU”)在主要单元内作为小型存储器操作,其中主单元覆盖范围不足以达到所有主单元TU。