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1. 发明申请

WO0131870A2 METHOD AND APPARATUS FOR DISTINGUISHING A COMPACT CONTROL CHANNEL FROM A CLASSIC CONTROL CHANNEL 审中-公开
标题翻译：用于从经典控制信道中分辨紧凑控制信道的方法和设备
公开(公告)号：WO0131870A2
公开(公告)日：2001-05-03
申请号：PCT/IB0001598
申请日：2000-10-25
申请人： NOKIA MOBILE PHONES LTD , NOKIA INC
发明人： JYRKKA KARI , JOKINEN HARRI
IPC分类号： H04B7/26 , H04L27/00 , H04L27/10 , H04W48/16
CPC分类号： H04L27/10 , H04L2027/0024 , H04W48/16
摘要： A method is disclosed to distinguish a first type of control channel from a second type of control channel. The method includes steps of (a) transmitting a carrier of the first type of control channel so as to include a first symbol sequence that results, when demodulated, in a sine wave having a frequency with a first offset from the carrier; (b) transmitting a carrier of the second type of control channel so as to include a second symbol sequence that results, when demodulated, in a sine wave having a frequency with a second offset from the carrier; and (c) demodulating a received carrier and detecting whether the carrier includes the first type of control channel of the second type of control channel. In the preferred embodiment of this invention the first symbol sequence is an all zeroes sequence, and the second type of symbol sequence is an alternating ones and zeroes sequence, which results in the first offset being a positive offset, and the second offset being a negative offset. In a most preferred embodiment the first offset is +67.7 kHz, and the second offset is -67.7 kHz. The step of demodulating includes a step of multiplying an I/Q representation of the received symbol sequence by 1-j, -1j, 1-j,..., and by 1j, -1-j, 1j,...
摘要翻译：公开了一种方法来区分第一类型的控制信道和第二类型的控制信道。该方法包括以下步骤：（a）发送第一类型控制信道的载波，以包括第一符号序列，该第一符号序列在解调时以具有与载波的第一偏移量的频率的正弦波; （b）发送第二类型控制信道的载波，以便包括第二符号序列，当解调时，第二符号序列以具有与载波有第二偏移的频率的正弦波; 和（c）解调接收的载波并检测载波是否包括第二类控制信道的第一类控制信道。在本发明的优选实施例中，第一符号序列是全零序列，并且第二种符号序列是交替的1和0序列，这导致第一偏移量是正偏移量，并且第二偏移量是负抵消。在最优选的实施例中，第一偏移是+67.7kHz，第二偏移是-67.7kHz。解调步骤包括将接收到的符号序列的I / Q表示乘以1-j，-1j，1-j，...和1j，-1-j，1j，...的步骤

2. 发明申请

WO0049739A3 METHOD AND APPARATUS FOR MULTIPLEXING MULTIPLE GSM CONTROL CHANNELS TO A SINGLE CARRIER 审中-公开
标题翻译：用于将多个GSM控制信道复用到单载波的方法和设备
公开(公告)号：WO0049739A3
公开(公告)日：2000-12-14
申请号：PCT/IB0000316
申请日：2000-02-15
申请人： NOKIA MOBILE PHONES LTD
发明人： JYRKKA KARI , LAPPETELAINEN ANTTI , MOTTONEN PEKKA
IPC分类号： H04B7/26 , H04W56/00 , H04W72/12 , H04W74/08 , H04Q7/38
CPC分类号： H04W72/1263 , H04B7/2653 , H04W56/003 , H04W74/08
摘要： A method is disclosed for operating a wireless telecommunications system. The method has a first step of (A) synchronously multiplexing a downlink communication frequency between transmissions of a plurality of base stations such that each base station transmits continuously for a plurality of consecutive time slot periods; and a second step of (B) receiving the transmission from at least one of the plurality of base stations with a mobile station, and transmitting an uplink transmission to one of the base stations from the mobile station during a time when the base station is not transmitting. The downlink transmission from each of the plurality of base stations includes a Broadcast Control Channel (BCCH) signal. The method includes a further step of multiplexing random access uplink transmissions to the plurality of base stations so as to reduce latency. The step (A) of synchronously multiplexing preferably includes a step of inserting a guardtime period between transmissions of different ones of the plurality of base stations.
摘要翻译：公开了一种用于操作无线电信系统的方法。该方法具有以下第一步骤：（A）同步复用多个基站的传输之间的下行链路通信频率，使得每个基站连续传输多个连续的时隙周期; （B）从多个基站中的至少一个基站接收与移动台的传输，并且在基站不是基站期间从移动台向上述基站之一发送上行链路传输发射。来自多个基站中的每一个的下行链路传输包括广播控制信道（BCCH）信号。该方法包括将随机接入上行链路传输复用到多个基站的进一步步骤，以便减少等待时间。同步多路复用的步骤（A）优选地包括在多个基站中的不同基站的传输之间插入保护时间段的步骤。

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