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公开(公告)号：SE0402003D0
公开(公告)日：2004-08-06
申请号：SE0402003
申请日：2004-08-06
Applicant: ERICSSON TELEFON AB L M
Inventor： HAGERMAN BO , OESTMAN THOMAS
Abstract: The present invention relates to communications. More especially it relates to handover of connections. Particularly it relates to soft handover of connections between cells or sectors providing optimized performance in hand over boundary or region balancing various coverage ranges.
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公开(公告)号：GB2342544B
公开(公告)日：2002-02-20
申请号：GB9930679
申请日：1998-06-16
Applicant: ERICSSON TELEFON AB L M
Inventor： MAZUR SARA , HAGERMAN BO , OESTMAN THOMAS
Abstract: Power control apparatus and an associated method for a transmitting station operable in a TDMA communication system. The transmitting station includes transmitter branches for communicating communication signal bursts during selected time slots. Communication signal bursts transmitted upon adjacent time slots partially overlap so that a receiving station is able to extract information from a communication signal burst transmitted upon an adjacent time slot.
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公开(公告)号：SE0003748D0
公开(公告)日：2000-10-13
申请号：SE0003748
申请日：2000-10-13
Applicant: ERICSSON TELEFON AB L M
Inventor： MONELL GUNNAR , OESTMAN THOMAS , SOEDERKVIST JAN ERIK
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公开(公告)号：GB2342544A
公开(公告)日：2000-04-12
申请号：GB9930679
申请日：1998-06-16
Applicant: ERICSSON TELEFON AB L M
Inventor： MAZUR SARA , HAGERMAN BO , OESTMAN THOMAS
Abstract: Power control apparatus (54) and an associated method for a transmitting station (32) operable in a TDMA communication system (30). The transmitting station includes transmitter branches (38) for communicating communication signal bursts during selected time slots (12). Communication signal bursts transmitted upon adjacent time slots partially overlap so that a receiving station (34) is able to extract information from a communication signal burst transmitted upon an adjacent time slot.
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公开(公告)号：CA2277987A1
公开(公告)日：1998-07-30
申请号：CA2277987
申请日：1998-01-09
Applicant: ERICSSON TELEFON AB L M
Inventor： OESTMAN THOMAS , MAEHLER HANS , FORSSEN ULF , HAGERMAN BO
Abstract: Directional-beam generative apparatus (62), and an associated method (102) for a radio communication station (36) forms directional antenna beam patterns (22, 34, 36, 52, 54, 56) for the communication of communication signals with remote communication stations (24, 26, 28) operable in a TDMA communication system (10). Channels (12, f1) are allocated for effectuation of communications between the radio communication station (18) and the remote stations (24, 26, 28) responsive to indications of locations at which the remote communication stations (24, 26, 28) are indicated to be positioned. Remote communication stations indicated to be positioned within a selected area are allocated to channels (12, f1) formed upon a single carrier (f1).
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Patent Agency Ranking
公开(公告)号：FI973200A
公开(公告)日：1997-10-03
申请号：FI973200
申请日：1997-08-01
Applicant: ERICSSON TELEFON AB L M
Inventor： OESTMAN THOMAS , GUSTAFSSON MAGNUS , JAERLEHOLM ANDERS
Abstract: A device and method are provided for fully realizing the precision gained internally from a conventional digital signal processor by generating a feed forward automatic gain control (AGC) signal. The feed forward AGC bit is indicative of the output of the digital signal processor being multiplied by a gain factor when the output from the digital filter included in the digital signal processor is below a threshold value. When the feed forward AGC signal is received by an inphase and quadrature (I/Q)-to-(logR/ phi ) converter connected to the digital signal processor, a corresponding value is subtracted from the radius component of the signal calculated by the (I/Q)-to-(logR/ phi ) converter. Because conventional digital signal processors have 16 IO bits, the feed forward AGC signal allows an input signal with a dynamic range and precision exceeding 16 bits to be transferred from the digital signal processor without loosing performance. As a result, a digital signal processor with a fewer number of IO bits than is nominally required for the precision and dynamic range of the output signal is implemented.
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公开(公告)号：CA2582065C
公开(公告)日：2014-11-25
申请号：CA2582065
申请日：2005-10-12
Applicant: ERICSSON TELEFON AB L M , HUAWEI TECH CO LTD , NEC CORP , NORTEL NETWORKS SA , SIEMENS AG
Inventor： AARFLOT TORBJOERN , OESTERLING JACOB , OESTMAN THOMAS , SPLETT ARMIN , KROENER HANS , MERZ PETER , KORTE WERNER , HASSLER BERND , LAGRANGE PATRICK , GEORGEAUX ERIC , SATO TOSHIFUMI , NAWATA HIZURU , YAGAWA KENICHIRO , GANGHUA YANG , HAIQING LAN , ZHIBIN LIN
Abstract: An interface, apparatus, and method are described for communication between a radio equipment control (REC) node and first and second radio equipment (RE) nodes in a radio base station that transceives information over radio interface using multiple antenna carriers. The REC node is separate from and coupled to the first RE node by a first transmission link, and the second RE node coupled to the first RE by a second transmission link. Both control information and user information intended for communication between the REC node and the first RE node and the REC and the second RE node are conveyed over the first transmission link. The first RE node also conveys information between the REC and second RE node. Many advantageous features are described.
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公开(公告)号：ES2368854T3
公开(公告)日：2011-11-23
申请号：ES05754520
申请日：2005-06-08
Applicant: ERICSSON TELEFON AB L M
Inventor： WIGREN TORBJOERN , PETERS GUNNAR , OESTMAN THOMAS
Abstract: Un metodo para la estimaci6n de la potencia del ruido termico en un sistema de telecomunicaciones (50) , que comprende las etapas de: medir (210) la potencia de banda ancha recibida total instantanea en un receptor y la suma instantanea de potencias de todos los enlaces utilizados en una celda (30) del citado sistema de telecomunicaciones celular (50) al cual el citado receptor (20) esta asociado; determinar (212) un valor de extremo de una diferencia entre la citada potencia de banda ancha recibida total sobre un periodo de tiempo y la citada suma de potencias de enlaces utilizadas en la citada celda (30) ; y estimar (214) un lfmite de un nivel de ruido termico como el medido por el citado receptor del citado valor de extremo.
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公开(公告)号：AT522104T
公开(公告)日：2011-09-15
申请号：AT05754520
申请日：2005-06-08
Applicant: ERICSSON TELEFON AB L M
Inventor： WIGREN TORBJOERN , PETERS GUNNAR , OESTMAN THOMAS
Abstract: An inherent non-observability of the thermal noise power level is circumvented by estimating an upper limit of the thermal noise power level by time evaluations. An instantaneous total received wideband power is measured in a receiver. Preferably, also an instantaneous sum of powers of all links used in the same cell is provided. A quantity (P′), preferably the difference between the instantaneous total received wideband power and the instantaneous sum of powers of all links used in the same cell, is followed (110) during a time period (TLag). A minimum value (PMIN) of that quantity is then used as an estimate of the thermal noise power level upper limit. Preferably, the time period is configured as a sliding window. An improved determination of noise rise can then be calculated and used for controlling traffic within the cell.
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公开(公告)号：DE60330405D1
公开(公告)日：2010-01-14
申请号：DE60330405
申请日：2003-10-07
Applicant: ERICSSON TELEFON AB L M
Inventor： OESTMAN THOMAS , PETTERSSON JAN
Abstract: The present invention relates to cellular mobile radio systems, and more especially it relates to Code Division Multiple Access, CDMA, cellular mobile radio systems, particularly to transmission power control in such systems. A method and apparatus for transmission of compensated TPC commands when a substantial loop delay is experienced for one or more user equipment entities is disclosed.
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