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公开(公告)号：EP2449714B1
公开(公告)日：2013-03-06
申请号：EP09780051.0
申请日：2009-07-01
IPC分类号： H04L1/20
CPC分类号： H04L1/0026 , H04B7/0632 , H04B17/24 , H04B17/309 , H04L1/0033 , H04L1/20
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公开(公告)号：EP1891824A1
公开(公告)日：2008-02-27
申请号：EP06733316.1
申请日：2006-04-18
发明人： CRAIG, Stephen , ERIKSSON, Stefan
IPC分类号： H04Q7/38
CPC分类号： H04W36/28
摘要： The invention relates to a handover or cell change procedure in a cellular radio Communications system (1) comprising a mobile user terminal (10) present in a serving cell (25) and having multiple radio resources (22, 24, 26, 28) simultaneously allocated for communication with a base station (20) of the cell (25). In this procedure, when there is a need for a cell change, the multiple radio resources (22, 24, 26, 28) are sequentially replaced with radio resources (32, 34, 36, 38, 42) allocated to the terminal (10) for communication with at least one base station (20, 30, 40) having an associated cell (35, 45) different from the serving cell (25). This cell change procedure provides macro diversity without requiring the complexity of soft handovers and has enhanced service coverage and handover robustness compared to hard handover.
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公开(公告)号：EP2745562B1
公开(公告)日：2017-11-15
申请号：EP12823445.7
申请日：2012-04-26
发明人： JOHANSSON, Klas , CRAIG, Stephen
IPC分类号： H04W36/00 , H04W36/18 , H04W52/40 , H04B7/02 , H04W36/30 , H04W52/24 , H04W52/36 , H04B7/022
CPC分类号： H04W36/18 , H04B7/022 , H04W36/30 , H04W52/241 , H04W52/365 , H04W52/40
摘要： Method and controlling network node (140) for transmitting data to a user equipment (130) over a set of radio links (115, 125), when a radio link (115, 125) is added, or removed. The controlling network node (140) is configured to communicate data to the respective radio network node (110, 120) over a respective backhaul link (118, 128), of which at least one backhaul link (118) is connected over an Internet Protocol, IP, network (150). The method (500) comprises measuring (501) the time delay over the corresponding backhaul link (118, 128) for each radio link (115, 125), determining (502) time difference between them, calculating (503) a buffer time for each radio link (115, 125), and buffering (507) data in a buffer (625) for the calculated period of time before forwarding the data to the radio network node (110, 120), for transmission to the user equipment (130).
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14.发明授权
公开(公告)号：EP1862025B1
公开(公告)日：2013-10-23
申请号：EP05722211.9
申请日：2005-03-14
发明人： CRAIG, Stephen
IPC分类号： H04W36/00
CPC分类号： H04W36/0055 , H04W72/082
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公开(公告)号：EP2550828A1
公开(公告)日：2013-01-30
申请号：EP10848560.8
申请日：2010-03-23
发明人： CRAIG, Stephen , WIGREN, Torbjörn
CPC分类号： H04B17/336 , H04L43/0882 , H04W52/241 , H04W52/343 , H04W52/40
摘要： Method and arrangement in a base station for providing an input parameter in an algorithm for predicting uplink load in a cell in a wireless communication system. The cell comprises at least one user equipment. The method comprises obtaining SIR target value associated with the user equipment, measuring SIR value on a signal sent from the user equipment, comparing the difference between the obtained SIR target value and the measured SIR value with a threshold limit value, selecting the SIR value as input parameter in the uplink load prediction algorithm for the user equipment, if the difference between the obtained SIR target value and the measured SIR value is bigger than the threshold limit value. Otherwise selecting the SIR target value as input parameter in the uplink load prediction algorithm for the user equipment.
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公开(公告)号：EP1673879B1
公开(公告)日：2009-11-11
申请号：EP04775449.4
申请日：2004-09-17
发明人： NYBERG, Henrik , CRAIG, Stephen
CPC分类号： H04B1/715
摘要： A frequency hopping sequence generator system ( 40 ) for use in a radio telecommunications system utilizes variable frequency offsets (FO) to determine a frequency hopping sequence for use in communication between a mobile station and a network node. The frequency hopping sequence generator comprises a frequency offset hopping generator ( 42 ) which chooses the variable frequency offsets so that the frequency hopping sequence provides intra-cell interference diversity. For each mobile station, the frequency offset hopping generator determines a frequency offset index (FOI) which is mapped to one of plural possible frequency offsets (FO). The frequency offset index (and thus the corresponding frequency offset) is determined to provide the frequency hopping sequence with both interference diversity and orthogonality. The frequency offset index has an inter-cell component (that provides, e.g., collision diversity between FO hopping sequences that are not orthogonal) and an intra-cell component (that provides orthogonal (non-colliding) sequences with a variable difference between two sequences).
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公开(公告)号：EP1258088A1
公开(公告)日：2002-11-20
申请号：EP01904681.2
申请日：2001-01-26
IPC分类号： H04B1/713
CPC分类号： H04B1/713 , H04W72/02 , H04W72/0466 , H04W72/082
摘要： In a telecommunications system that employs frequency hopping techniques, network performance can be significantly improved by taking into consideration the level of interaction (e.g., the collision rate) between frequency hopping sequences, when allocating the frequency hopping sequences, throughout the network. In a cellular network, this may be accomplished by deriving a network performance measure as a function of a current allocation of frequencyhopping sequences for a number of cells and as a function of an expected collision rate (between the frequency hopping sequences) that appear for the current allocation. The frequency hopping sequences are then re-allocated amongst one or more cells until network performance is optimized. The allocation of frequency hoppingsequences that results in optimized network performance may then be used for assigning frequency hopping sequences to new or existing connections (e.g., cellular calls) within a corresponding cell.
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公开(公告)号：EP2923525B1
公开(公告)日：2019-02-27
申请号：EP13856912.4
申请日：2013-09-16
发明人： WIGREN, Torbjörn , CRAIG, Stephen
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公开(公告)号：EP2721880A1
公开(公告)日：2014-04-23
申请号：EP11867981.0
申请日：2011-06-16
IPC分类号： H04W52/02
CPC分类号： H04W52/0203 , H04W28/0236 , H04W28/08 , H04W52/0206 , Y02D70/1226 , Y02D70/1242 , Y02D70/1262 , Y02D70/1264 , Y02D70/146
摘要： Method and arrangement in a network node (110), for traffic based energy saving, wherein the network node (110) comprises an observing part (111) and a controlled part (112) which comprises modules (112-1, 112-2) associated with radio communication, such as transmission or reception of radio signals. The method comprises acquiring (401) a predicted traffic load related information from the observing part (111), evaluating (403) the number of active modules (112-1, 112-2), which is required for radio communication at the predicted traffic load, adjusting (405) the number of active modules (112-1, 112-2) at the controlled pari (112), according to the required number of active modules (112-1, 112-2),
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公开(公告)号：EP1258088B1
公开(公告)日：2010-11-17
申请号：EP01904681.2
申请日：2001-01-26
IPC分类号： H04B1/713
CPC分类号： H04B1/713 , H04W72/02 , H04W72/0466 , H04W72/082
摘要： In a telecommunications system that employs frequency hopping techniques, network performance can be significantly improved by taking into consideration the level of interaction (e.g., the collision rate) between frequency hopping sequences, when allocating the frequency hopping sequences, throughout the network. In a cellular network, this may be accomplished by deriving a network performance measure as a function of a current allocation of frequencyhopping sequences for a number of cells and as a function of an expected collision rate (between the frequency hopping sequences) that appear for the current allocation. The frequency hopping sequences are then re-allocated amongst one or more cells until network performance is optimized. The allocation of frequency hoppingsequences that results in optimized network performance may then be used for assigning frequency hopping sequences to new or existing connections (e.g., cellular calls) within a corresponding cell.
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