公开(公告)号：EP0481190B1

公开(公告)日：1998-12-30

申请号：EP91114027.5

申请日：1991-08-22

申请人： Nippon Motorola Ltd.

发明人： Nakatani, Yuuichi ,  Miyake, Hironori

IPC分类号： H03M1/14 ,  H03M1/36

CPC分类号： H03M1/069 ,  H03M1/1215 ,  H03M1/142 ,  H03M1/144 ,  H03M1/146

公开(公告)号：EP0865710A1

公开(公告)日：1998-09-23

申请号：EP96939023.0

申请日：1996-11-13

申请人： MOTOROLA LTD

发明人： BENN, Howard

IPC分类号： H04W88

CPC分类号： H04W88/085

摘要： As exemplified, signal processing for multiple Radio Frequency (RF) heads (162-172) of a communication system (160) is located at a central control unit (158), such as a base station transceiver. More particularly, in the case where the RF head requires transmission and reception capabilities (in a TDM pico-cellular environment, for example), the central control unit is arranged to undertake power intensive channel coding and channel decoding for each of the RF heads, while the RF heads principally contain RF circuitry required for communication. As such, power consumption and heat generation arising from signal processing is restricted to the central control unit (158), thereby allowing a reduction in the cost and physical size of the RF heads (162-172).

公开(公告)号：EP0855107A1

公开(公告)日：1998-07-29

申请号：EP96933367.0

申请日：1996-09-24

申请人： MOTOROLA LTD

发明人： GOLDING, Paul ,  BENNETT, Irwin

IPC分类号： H03M13 ,  H04L1

CPC分类号： H04L1/0054 ,  H03M13/41 ,  H03M13/4115 ,  H03M13/4146 ,  H03M13/4153 ,  H03M13/4169 ,  H03M13/6502 ,  H03M13/6505 ,  H04L1/0053

摘要： A reduction in the number of metric-difference calculations (used in Window Error Detection) in a Viterbi state trellis (120) is achieved by performing two passes of a frame through the trellis (120). During a first pass, metric-difference calculations are suspended, but path metric calculations are indexed. At an identified branch, trellis data words (138-144) are recorded and associated with the branch (see the figure). Upon completion of the first pass, a desired survivor path is determined and 'traced-back' to its corresponding state in the identified branch using indexed path metrics, for example. The path metric corresponding to this state is nominally reloaded and, starting from that state, decoding of the frame occurs for a second pass while metric-difference (L-value) calculations are performed on the desired survivor path only, and only a single lowest L-value for the desired survivor path is recorded.

摘要翻译： 维特比状态网格（120）是窗口错误检测，并通过网格（120）影响帧的两次通过。 在第一次通过期间，度量差异计算被暂停，但路径度量计算被索引。 在识别的分支处，格状数据字（138-144）被记录并与分支相关联。 在第一遍完成时，例如，使用索引路径度量来确定期望的幸存者路径并将其“跟踪”到所识别的分支中的对应状态。 与该状态相对应的路径度量名义上重新加载，并且从该状态开始，对于第二遍而发生帧的解码，而对期望的幸存路径仅进行度量差（L值）计算，并且仅仅是最低的 记录所需幸存路径的L值。 这是为了减少计算的内存空间，并降低功耗要求。 它可以用于使用前向纠错的GSM蜂窝通信。

公开(公告)号：EP0586656B1

公开(公告)日：1998-06-10

申请号：EP93906550.4

申请日：1993-03-18

申请人： MOTOROLA LTD

发明人： BARNES, Nigel Everard

IPC分类号： H04B1/38 ,  H04Q1/30

CPC分类号： H04M1/72511 ,  H04W72/06

摘要： A communications system comprising: first (1) and second (40) communications units (e.g. a base station and a handset of a telepoint system) having means for communicating over a base set of communications channels, means for selecting one of said base set for establishing communication and means in said first unit for communicating to said second unit information as to capabilities of said first unit when communication has been established. The system is characterized in that the first unit has means for communicating over an extended set of communications channels in addition to the base set and the means in the first unit for communicating the information comprise means for informing the second unit of the first unit's extended channel capability and the spectral location of the extended set of channels.

公开(公告)号：EP0813801A1

公开(公告)日：1997-12-29

申请号：EP96937265

申请日：1996-10-28

申请人： MOTOROLA LTD

发明人： BENN HOWARD PETER

IPC分类号： H04W16/32 ,  H04W74/08 ,  H04W88/08 ,  H04Q7/36

CPC分类号： H04W16/32 ,  H04W74/08 ,  H04W88/08

摘要： A radio communications system (200) that utilises multiple cells (201, 203, 205) to provide radio communication services to a plurality of mobile stations (405, 407). In the cells (201) that service high concentrations of mobile stations within a very small geographic area, such as large office buildings (207), there are provided a plurality of radio frequency (RF) capsules (209) within the geographic area serviced by the cell (201). In addition to having a base site (300) for providing a Broadcast Control Channel (BCCH), the cell (201) contains multiple RF capsules (313) for transmitting and receiving traffic channels as well as receiving Random Access Channel (RACH) bursts form a plurality of mobile stations in a portion of the geographic area serviced by the base site. The RF capsules (313) do not provide a BCCH, rather the BCCH is provided by a microcell transceiver (311) that is servicing the particular cell (201).

公开(公告)号：EP0742974A1

公开(公告)日：1996-11-20

申请号：EP95941673.0

申请日：1995-12-05

申请人： MOTOROLA LTD

发明人： HOWARD, Paul ,  JONES, Alan

IPC分类号： H03L7 ,  H04B1 ,  H04J3

CPC分类号： H03L7/107 ,  H03L7/23 ,  H04B1/713

摘要： A method for implementing frequency hopping in a time domain system having at least a first synthesiser including the steps of locking (32) onto a first frequency by the first synthesiser in wide loop bandwith mode, transmitting from the first synthesiser (34), and converting to a narrow bandwith mode (36) on the first synthesiser after a delayed period of time.

公开(公告)号：EP0698311A1

公开(公告)日：1996-02-28

申请号：EP95911280.0

申请日：1995-03-02

申请人： MOTOROLA LTD

发明人： BOSCOVIC, Dragan ,  VALENTINE, Stephen ,  BASTANI, Babak ,  WRAY, Antony

IPC分类号： H03G3 ,  H03F1 ,  H04B1

CPC分类号： H03F1/3247 ,  H03F1/345 ,  H03F2201/3233

摘要： A method for amplitude training for a power amplifier is described employing adaptively changing an input training signal of a feedback circuit.

公开(公告)号：EP0660190A1

公开(公告)日：1995-06-28

申请号：EP94118581.1

申请日：1994-11-25

申请人： MOTOROLA LTD

发明人： Wootton, Phil ,  Morland, Graeme ,  Mautz, Karl E. ,  Dalziel, John

IPC分类号： G03F7/42

CPC分类号： H01L21/02071 ,  G03F7/427

摘要： A method of removing photoresist (20) from a metal layer (16) formed on a substrate (1) and having a pattern defined by means of a corrosive gas plasma etch.
The method consists of etching the resist (20) in an oxygen gas plasma for a period of time and at a sufficiently high temperature to remove all residual corrosive gas absorbed in the photoresist and below the temperature at which the metal beings to flow. An etching time of 3 minutes at 300°C is typically used.

摘要翻译： 从形成在基板（1）上的金属层（16）去除光致抗蚀剂（20）并具有通过腐蚀性气体等离子体蚀刻限定的图案的方法。 该方法包括在氧气等离子体中蚀刻抗蚀剂（20）一段时间并且处于足够高的温度以除去吸收在光致抗蚀剂中的所有残留的腐蚀性气体，并低于金属流动的温度。 通常使用在300℃下3分钟的蚀刻时间。

公开(公告)号：EP0630125A3

公开(公告)日：1995-03-08

申请号：EP94112328.3

申请日：1991-04-02

申请人： MOTOROLA LTD

发明人： Rees, Idris John Mark ,  Pickersgill, Phillip

IPC分类号： H04B17/00 ,  H04Q7/04

CPC分类号： H04W24/00 ,  H04B17/103 ,  H04B17/17 ,  H04B17/20 ,  H04J3/0682

摘要： Base Station Transceiver Equipment (10) is provided such as for use in a cellular radio telephone system (fig. 3). A receiver (32) associated with a first base station transmitter in a first cell has means for monitoring a parameter of transmissions from a second base station transmitter (34-38) remotely located from the first base station transmitter. The receiver further comprises means for reporting, to a central management centre (40) responsible for the operational control of base stations (32-28) in the cellular radio communications system, if a change in said parameter is detected. The operation management centre (40) has means for determining whether the reported change in said parameter is due to a fault in the second base station transmitter and not to a specific operational change anticipated by the operation management centre.

公开(公告)号：EP0586656A1

公开(公告)日：1994-03-16

申请号：EP93906550.0

申请日：1993-03-18

申请人： MOTOROLA LTD

发明人： BARNES, Nigel Everard

IPC分类号： H04B1 ,  H04M1 ,  H04W72

CPC分类号： H04M1/72511 ,  H04W72/06

摘要： Système de télécommunication comportant une première (1) et une seconde (40) unité de télécommunication (par exemple une station de base et le combiné d'un système télépoint) permettant de communiquer par l'intermédiaire d'un ensemble de canaux de base, et de sélectionner l'un de ces canaux afin d'établir la communication, ladite première unité pouvant transmettre à ladite seconde unité des informations concernant les capacités de ladite première unité une fois que la communication est établie. Le système est caractérisé en ce que la première unité peut communiquer par l'intermédiaire d'un ensemble étendu de canaux venant s'ajouter à l'ensemble de base, et en ce que le dispositif permettant à la première unité d'envoyer lesdites informations comporte un dispositif destiné à signaler à la seconde unité que la capacité en canaux de la première unité est étendue, et à lui indiquer le domaine spectral dans lequel est compris l'ensemble étendu de canaux.