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公开(公告)号：EP2186378A1
公开(公告)日：2010-05-19
申请号：EP07808859.8
申请日：2007-09-05
发明人： LINDGREN, Stefan , SJÖBERG, Sten
CPC分类号： H04W16/08 , H04W52/0206 , H04W88/08 , Y02D70/146
摘要： The present invention relates to a method for energy saving in a telecommunication system with at least one first base station 24 for enabling communication within a first cell. A signal having a frame structure is transmitted in the first cell by the first base station 24. The structure of at least some frames comprises an overhead part with at least synchronization or system information. The first base station 24 is in a normal mode operated to transmit at least the overhead part so that it substantially reaches all user terminals within the first cell covering a first area 27. The method is particularly characterized in that the first base station 24 in a power saving mode is operated to transmit at least the overhead part so that it substantially reaches all user terminals within the first cell covering a second area 23 being larger than the first area 27.
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公开(公告)号：EP2186263A1
公开(公告)日：2010-05-19
申请号：EP07808857.2
申请日：2007-09-05
发明人： LINDGREN, Stefan , SJÖBERG, Sten
CPC分类号： H04W52/0206 , Y02D70/1222 , Y02D70/1242 , Y02D70/1262 , Y02D70/146 , Y02D70/23
摘要： A signal having a frame structure is transmitted and received in a cell by a first base station, the structure of the frame having a downlink frame part and an uplink frame part. Each frame part has the ability of carrying at least one data region allocated to at least one user or broadcasted for the traffic flow between the telecommunication network and the user terminal via the first base station. The downlink frame part has an overhead part with at least synchronization or system information. The frame structured signal is transmitted periodically Frame N, Frame N+1, Frame N+2, Frame N+3 with a normal interval defined by the system. The system during, a power saving mode, increases the interval between at least a first and the next following second frame structured signal to a power saving interval.
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公开(公告)号：EP0876633B1
公开(公告)日：2007-03-14
申请号：EP97901884.3
申请日：1997-01-22
IPC分类号： G02B6/42
CPC分类号： G02B6/4214 , G02B6/3636 , G02B6/3692 , G02B6/4239
摘要： Optical components intended for telecommunications purposes must be manufactured and mounted with a great degree of accuracy, since a component, such as an optochip, when mounted must be coupled optically, electrically, mechanically and thermally at the same time. In order to obtain a right-angled geometry when using surface-emitting or surface-detecting components, and to obtain a reduced optical travel path and accurate fixation of an optofibre, a reflective surface (12) which slopes at an angle of 45 degrees is arranged between a light-conducting core (16) and the active surface (10) of an optochip, and the light-conducting core has been placed closer to the reflective surface by bevelling the optofibre (9) and fitting the fibre in a V-groove and accurately fixating the fibre in the groove by means of a flat cover means (20). The aforesaid solutions relate generally to problems of a geometrical nature, but are able to provide important advantages in the arrangement of optical components in so-called optical micro-structures in comparison with earlier known techniques with regard to requirements of space, signal transmission performances and manufacturing costs.
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公开(公告)号：EP2140690B1
公开(公告)日：2014-02-12
申请号：EP07748461.6
申请日：2007-05-03
IPC分类号： H04W52/02
CPC分类号： H04W52/0216 , H04W68/00 , Y02D70/146
摘要： A base station for use in a WiMAX system comprise means for sending a wake-up signal to an idle terminal to indicate to the terminal that a paging signal is about to be sent to the terminal. The terminal receives and interprets the wake-up signal and prepares itself for receiving the paging signal. This saves battery power in the terminal since the wake-up signal can be detected more easily than the paging signal. The base station, in the mean time, can reduce its paging message traffic and saves overhead in downlink transmission.
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公开(公告)号：EP2206263A1
公开(公告)日：2010-07-14
申请号：EP07861090.4
申请日：2007-12-20
发明人： LAMM, Anders , LINDGREN, Stefan , SJÖBERG, Sten , TSAI, Shawn
IPC分类号： H04L1/00
CPC分类号： H04B7/2656
摘要： The present invention is directed to a method and a node arrangement for extending the cell range in a wireless communication system, which communication system comprises a communication network arranged to operatively communicate with at least one mobile terminal via an air interface having a cell range extending to a cell edge, and at least one mobile terminal arranged to operatively communicate with said communication network via said air interface. The method comprises the steps of: obtaining information about the condition of an up-link signal from said at least one mobile terminal; determining whether said terminal is located at or near the cell edge, and extending the cell range by increasing the time for up-link transmission if the terminal is located at or near the cell edge.
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公开(公告)号：EP2140690A1
公开(公告)日：2010-01-06
申请号：EP07748461.6
申请日：2007-05-03
CPC分类号： H04W52/0216 , H04W68/00 , Y02D70/146
摘要： A base station for use in a WiMAX system comprise means for sending a wake-up signal to an idle terminal to indicate to the terminal that a paging signal is about to be sent to the terminal. The terminal receives and interprets the wake-up signal and prepares itself for receiving the paging signal. This saves battery power in the terminal since the wake-up signal can be detected more easily than the paging signal. The base station, in the mean time, can reduce its paging message traffic and saves overhead in downlink transmission.
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