公开(公告)号：US6147983A

公开(公告)日：2000-11-14

申请号：US995543

申请日：1997-12-22

申请人： Tomas Backstrom

发明人： Tomas Backstrom

IPC分类号： H04W24/04 ,  H04W36/06 ,  H04W36/38 ,  H04W88/08 ,  H04B7/212 ,  H04Q7/00

CPC分类号： H04W36/06 ,  H04W88/08 ,  H04W24/04 ,  H04W36/38

摘要： A base station comprises a plurality of transceivers, one of which normally performs verifications, but is able to handle traffic channels at time of high demand. When it is desired to block one transceiver, for example for maintenance purposes, calls allocated to that transceiver can be handed off to other transceivers before the device is fully blocked.

摘要翻译： 基站包括多个收发器，其中之一通常执行验证，但能够在高需求时处理话务信道。 当希望阻止一个收发器时，例如为维护目的，分配给该收发器的呼叫可以在设备完全阻塞之前切换到其他收发器。

公开(公告)号：US5229996A

公开(公告)日：1993-07-20

申请号：US915755

申请日：1992-07-21

申请人： Tomas Backstrom ,  Anders Sandell ,  Peter Wahlstrom

发明人： Tomas Backstrom ,  Anders Sandell ,  Peter Wahlstrom

IPC分类号： H04B7/26 ,  H04J3/06 ,  H04L7/08

CPC分类号： H04W56/005 ,  H04B7/2681 ,  H04J3/0602 ,  H04J3/0682 ,  H04W56/0075 ,  H04W56/0085 ,  H04L7/08

摘要： Synchronization is maintained between a regional radio transmitter/receiver and a remote transmitter/receiver communicating across a TDMA channel by detecting time misalignment of communications from the remote transmitter/receiver to the regional transmitter/receiver, commanding the remote transmitter/receiver to adjust its transmission timing, and, until the remote transmitter/receiver has adjusted its transmission timing, looking for a synchronization pattern accompanying transmissions by the remoter transmitter/receiver during two discontinuous time intervals, one centered about a time of occurrence of the synchronization pattern before the command and another centered about an expected time of occurrence of the synchronization pattern in response to the command. Effectively, what would otherwise be a disadvantageously wide time window is split into two advantageously narrow time windows to avoid detection of false syncs. Fewer false syncs are detected, and speech quality is increased.

摘要翻译： 通过检测从远程发射机/接收机到区域发射机/接收机的通信的时间偏移来指示区域无线电发射机/接收机与通过TDMA信道通信的远程发射机/接收机之间的同步，命令远程发射机/接收机调整其传输 定时，并且直到远程发射机/接收机已经调整了其传输定时，寻找伴随远程发射机/接收机在两个不连续时间间隔期间传输的同步模式，一个以指令之前的同步模式出现时间为中心， 另一个以响应于该命令的同步模式的预期时间为中心。 实际上，否则将是不利的宽时间窗口分成两个有利的窄时间窗口，以避免检测到假同步。 检测到较少的错误同步，语音质量提高。

公开(公告)号：US5297169A

公开(公告)日：1994-03-22

申请号：US723266

申请日：1991-06-28

申请人： Tomas Backstrom ,  Torbjorn Ward ,  Gustav Larsson

发明人： Tomas Backstrom ,  Torbjorn Ward ,  Gustav Larsson

IPC分类号： H04L7/033 ,  H04L7/04 ,  H04L25/03 ,  H03H7/30

CPC分类号： H04L25/03178 ,  H04L2025/03401 ,  H04L2025/03789 ,  H04L2025/03796 ,  H04L7/033 ,  H04L7/041

摘要： Reception of a transmission in a radiotelephone system including an equalizer is improved by training the equalizer using a synchronization portion of the transmission having a data pattern chosen for its correlation properties and retraining the equalizer using a portion of the transmission transmitted for a different purpose. In particular, the portion of the transmission transmitted for a different purpose may be the digital verification color code transmitted during each burst in a digital cellular mobile radiotelephone system. Reception quality is increased by training the equalizer at more frequent intervals without increasing transmission overhead.

摘要翻译： 通过使用具有为其相关属性选择的数据模式的传输的同步部分来训练均衡器来改善包括均衡器的无线电话系统中的传输的接收，并且使用为不同目的发送的传输的一部分重新训练均衡器。 特别地，为了不同目的而发送的传输部分可以是在数字蜂窝移动无线电话系统中的每个突发期间发送的数字验证色码。 通过以更频繁的间隔训练均衡器来增加接收质量，而不增加传输开销。