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公开(公告)号:EP1982453A4
公开(公告)日:2012-10-24
申请号:EP06748034
申请日:2006-06-13
Applicant: ERICSSON TELEFON AB L M
Inventor: THURFJELL MAGNUS , JOENSSON TOMAS , OLSSON MAGNUS
CPC classification number: H04L1/0026 , H04L1/0003 , H04L1/0009 , H04L1/0015 , H04L2001/0093 , H04W24/10
Abstract: In a method of link quality control for communication links between a plurality of mobile terminals and a node in a radio communication system, providing (S0) at least one data block for transmission between said node and at least one of said mobile terminals, providing (S1) at least two measurement reports comprising measurements of the quality for a plurality of potential burst constellations on which to transmit said at least one data block, jointly selecting (S2) a respective burst constellation for each said at least one data block based at least on said measurement reports, jointly selecting (S3) a respective modulation and coding scheme for each said data block based at least on said measurement reports. Subsequently, scheduling (S4) bursts for transmission on at least one available channel based at least on said jointly selected modulation and coding scheme and said jointly selected burst constellation.
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公开(公告)号:AT528943T
公开(公告)日:2011-10-15
申请号:AT05744156
申请日:2005-04-22
Applicant: ERICSSON TELEFON AB L M
Inventor: THURFJELL MAGNUS , HAEGGLUND FREDRIK
IPC: H04W52/04
Abstract: The present invention pertains to power control in cellular networks (1). A power control algorithm (201) is operated to control transmission powers on radio links (downlinks and/or uplinks). An information collector (203; 127) is adapted to collect power distribution information indicating how the transmission powers of a selected plurality of radio links are distributed in a dynamic power range extending from a minimum power level Pmin to a maximum power level Pmax. A feedback generator (205; 129) is adapted to generate feedback for modifying the operation of the power control algorithm (201) based on the power distribution information. The feedback makes the operation of the power control algorithm (201) less sensitive to initial settings of operational parameters and varying conditions in the radio environment. The burden on the operator to select optimal settings for operational parameters is therefore lowered. The invention can be achieved using conventional measurement reports from user terminals.
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公开(公告)号:ES2342921T3
公开(公告)日:2010-07-19
申请号:ES00950186
申请日:2000-07-31
Applicant: ERICSSON TELEFON AB L M
Inventor: MAGNUSSON SVERKER , CRAIG STEPHEN G , EDGREN ERIK , THURFJELL MAGNUS
IPC: H04B1/713 , H04B1/7143 , H04B1/715 , H04J13/16
Abstract: Método de saltos de frecuencia para un sistema de radiotelecomunicaciones celular que utiliza saltos de frecuencia, en el que cada célula de un grupo de células contiene una estación base, en donde el método comprende las etapas de: establecer una secuencia de referencia de saltos de frecuencia para cada una del grupo de células; asignar un número de desplazamientos de frecuencias a cada uno del grupo de células; y asignar una primera secuencia de saltos de desplazamiento de frecuencias a una primera estación móvil operativa en una primera de las células, en donde cada desplazamiento de frecuencias asociado con la primera secuencia de saltos de desplazamiento de frecuencias es uno del número de desplazamientos de frecuencias asignados a la primera célula, y donde la primera estación móvil, durante un periodo de tiempo dado, salta desde una frecuencia a la siguiente frecuencia en función de la secuencia de referencia de saltos de frecuencia y de la primera secuencia de saltos de desplazamiento de frecuencias.
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公开(公告)号:CA2385565A1
公开(公告)日:2001-04-05
申请号:CA2385565
申请日:2000-07-31
Applicant: ERICSSON TELEFON AB L M
Inventor: EDGREN ERIK , THURFJELL MAGNUS , MAGNUSSON SVERKER , CRAIG STEPHEN G
Abstract: In a cellular radio telecommunications system that employs frequency hopping , system performance can be significantly improved by more fully exploiting interference diversity, while maintaining frequency diversity, which is already associated with frequency hopping techniques. In order to more fully exploit interference diversity, each mobile station operating in a cell is allocated, in addition to a frequency hopping sequence, a frequency offset hopping sequence such that each mobile station hops from one frequency to th e next frequency as a function of the frequency hopping sequence and its allocated frequency offset hopping sequence. This technique is readily applicable to increase both intercell and intracell interference diversity i n unsynchronized or synchronizhed cells.
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公开(公告)号:CA2976822C
公开(公告)日:2019-07-16
申请号:CA2976822
申请日:2015-02-20
Applicant: ERICSSON TELEFON AB L M
Inventor: ERICSON MARTEN , DE BRUIN PETER , THURFJELL MAGNUS
Abstract: Embodiments herein relate to a method performed by a radio unit (101) for controlling power levels of spatially separated transceivers (110-119) connected to the radio unit (101) via corresponding antenna ports (a-j). Each transceiver (110-119) is capable of performing measurements on uplink transmissions from wireless devices in a wireless communication network (100). The radio unit (101) receives, from each transceiver (110-119), measurements on uplink transmissions from wireless devices. Then, the radio unit (101) determines, for each transceiver (110-119), a load based on how many wireless devices that have the transceiver as the transceiver with the most relevant measurement for its uplink transmissions. The radio unit (101) also controls a power level of at least one first transceiver (110) based on at least one of the determined loads for the transceivers (110-119). Embodiments of the radio unit (101) are also described.
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公开(公告)号:CA3041457A1
公开(公告)日:2018-01-18
申请号:CA3041457
申请日:2017-02-15
Applicant: ERICSSON TELEFON AB L M
Inventor: THURFJELL MAGNUS , OKVIST PETER , SIMONSSON ARNE , JONSSON SVEN-OLOF , PETERSSON SVEN
Abstract: Method performed by a first communication device (101) operating in a wireless communications network (100). The first communication device (101) obtains (301) a set of correspondences (400) associating: i) each set (? i ) of a plurality of sets of antenna weights (? 1 ? i ) having been sent by a third communication device (103) in response to having received a respective set (RSs i ) of a plurality of sets of radio signals (RSs 1 RSs i ) from a set of antenna ports in a second communication device (102), with ii) a respective direction of transmission (d i ) between the second communication device (102) and the third communication device (103). The respective direction is relative to an orientation (a i ) of the second communication device (102). The respective direction of transmission (d i ) is a selected direction of transmission (d i,ai ). The first communication device (101) then initiates (303) transmission of a new radio signal, based on the obtained set of correspondences (400).
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公开(公告)号:RU2660961C1
公开(公告)日:2018-07-11
申请号:RU2017132683
申请日:2015-02-20
Applicant: ERICSSON TELEFON AB L M
Inventor: ERICSON MARTEN , DE BRUIN PETER , THURFJELL MAGNUS
IPC: H04W52/34
Abstract: Изобретениеотноситсяк радиосвязи. Техническийрезультатзаключаетсяв уменьшениипотребленияэнергиии снижениипомех. Вариантынастоящегоизобретенияотносятсяк способу, осуществляемомурадиоблокомдляуправленияуровнямивыходноймощностипространственноразнесенныхприемопередатчиков, соединенныхс радиоблокомчерезсоответствующиеантенныепорты (a-j). Каждыйприемопередатчикспособенвыполнятьизмеренияхарактеристикпередачвосходящейлинииотбеспроводныхустройствв беспроводнойсетисвязи. Радиоблокпринимает, откаждогоприемопередатчика, результатывыполненныхимиизмеренийхарактеристикпередачвосходящейлинииотбеспроводныхустройств. Затемрадиоблокопределяет, длякаждогоприемопередатчика, нагрузкунаосноветого, какмногобеспроводныхустройствимеютэтотприемопередатчикв качествеприемопередатчикас наиболеерелевантнымирезультатамиизмеренийхарактеристикпередачвосходящейлинииотсоответствующегоустройства. Радиоблоктакжеуправляетуровнемвыходноймощностипоменьшеймереодногопервогоприемопередатчиканаосновепоменьшеймереоднойизнайденныхнагрузокдляприемопередатчиков. 3 н. и 19 з.п. ф-лы, 5 ил.
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公开(公告)号:BR0014330A
公开(公告)日:2002-05-28
申请号:BR0014330
申请日:2000-07-31
Applicant: ERICSSON TELEFON AB L M
Inventor: MAGNUSSON SVERKER , CRAIG STEPHEN G , EDGREN ERIK , THURFJELL MAGNUS
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公开(公告)号:CA2976822A1
公开(公告)日:2016-08-25
申请号:CA2976822
申请日:2015-02-20
Applicant: ERICSSON TELEFON AB L M (PUBL)
Inventor: ERICSON MARTEN , DE BRUIN PETER , THURFJELL MAGNUS
Abstract: Embodiments herein relate to a method performed by a radio unit (101) for controlling power levels of spatially separated transceivers (110-119) connected to the radio unit (101) via corresponding antenna ports (a-j). Each transceiver (110-119) is capable of performing measurements on uplink transmissions from wireless devices in a wireless communication network (100). The radio unit (101) receives, from each transceiver (110-119), measurements on uplink transmissions from wireless devices. Then, the radio unit (101) determines, for each transceiver (110-119), a load based on how many wireless devices that have the transceiver as the transceiver with the most relevant measurement for its uplink transmissions. The radio unit (101) also controls a power level of at least one first transceiver (110) based on at least one of the determined loads for the transceivers (110-119). Embodiments of the radio unit (101) are also described.
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公开(公告)号:DE60044089D1
公开(公告)日:2010-05-12
申请号:DE60044089
申请日:2000-07-31
Applicant: ERICSSON TELEFON AB L M
Inventor: MAGNUSSON SVERKER , CRAIG STEPHEN G , EDGREN ERIK , THURFJELL MAGNUS
IPC: H04B1/713 , H04B1/7143 , H04B1/715 , H04J13/16
Abstract: In a synchronized, cellular radio telecommunications system that employs frequency hopping, system performance can be significantly improved by more fully exploiting interference diversity, while maintaining frequency diversity, which is already associated with frequency hopping techniques. In order to more fully exploit interference diversity, each cell belonging to a group of synchronized cells in the cellular radio telecommunications system is allocated a common, reference frequency hopping sequence. However, the various mobile stations operating in any one of these cells is allocated a different frequency offset hopping sequence.
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