公开(公告)号：AU7951998A

公开(公告)日：1999-03-08

申请号：AU7951998

申请日：1998-06-26

Applicant: ERICSSON TELEFON AB L M

Inventor： FRODIGH MAGNUS ,  ALMGREN MAGNUS ,  OLOFSSON HAKAN

IPC: H04B7/26 ,  H04W36/30 ,  H04Q7/38

Abstract: The invention relates to a method of performing handover in a mobile radio system. The mobile radio system performs quality measurements on signals transmitted (300) between a mobile terminal and predetermined radio base stations. Handover is performed (301, 302, 303) when some of the measured signal strengths exceeds the signal strength for the radio base station to which the mobile terminal for the moment is set up, added to a handover value. The handover value is dependent on measured signal strengths and neighboring cell relation values. The neighboring cell relation values depend on a probability for handover to be performed from one radio base station to another radio base station in the mobile radio system.

公开(公告)号：AU7948898A

公开(公告)日：1999-01-04

申请号：AU7948898

申请日：1998-06-16

Applicant: ERICSSON TELEFON AB L M

Inventor： ALMGREN MAGNUS ,  FRODIGH MAGNUS ,  GUDMUNDSON MIKAEL ,  KRONESTEDT FREDRIC

IPC: H04B1/04 ,  H04B7/005 ,  H04B7/26

公开(公告)号：AU5130896A

公开(公告)日：1996-10-08

申请号：AU5130896

申请日：1996-03-20

Applicant: ERICSSON TELEFON AB L M

Inventor： WALLSTEDT KENNETH ,  ALMGREN MAGNUS ,  FRODIGH MAGNUS ,  ANDERSSON HIKAN

IPC: H04B7/005 ,  H04W16/10 ,  H04W52/34 ,  H04Q7/36

Abstract: In a cellular communication system, a method and apparatus are provided for allocating a channel for use on a connection between a base station and a mobile station in a cell, without making measurements of downlink interference. Throughout the system, uplink and downlink power levels are regulated so that, within each cell, their sum changes by an amount whose magnitude is substantially equal to the magnitude of change in path gain between the mobile station and the base station in that cell, and which sum is opposite in sign to the amount of change in path gain. This power regulation scheme assures that there will be a strong correlation between system-wide measurements of uplink and downlink interference. Therefore, with the power regulation scheme in place, each cell determines uplink carrier to interference (C/I) ratios for the free channels available for use in the cell and selects an acceptable free channel having a C/I value that is within a predetermined acceptable range. If uplink C/I on the acceptable free channel is greater than the uplink C/I value of a channel currently assigned to a connection, then an intra-cell handover is performed so that the connection will be reassigned to the acceptable free channel. This technique is useful for providing an adaptive channel allocation scheme to systems, such as analog cellular communications systems, in which downlink interference measurements cannot be made.

公开(公告)号：RU2632930C1

公开(公告)日：2017-10-11

申请号：RU2016138435

申请日：2014-03-04

Applicant: ERICSSON TELEFON AB L M (PUBL)

Inventor： SACHS JOACHIM ,  MILDH GUNNAR ,  HOOK MIKAEL ,  FRODIGH MAGNUS ,  DAHLMAN ERIK ,  KALLIN HARALD

IPC: H04W28/24 ,  H04W4/00 ,  H04W76/10 ,  H04W76/12

Abstract: Изобретениеотноситсяк беспроводнойсвязи. Техническийрезультатзаключаетсяв улучшениикачестваобслуживания. Раскрытыспособи беспроводноеустройстводляуправленияоднонаправленным EPS-каналом, способи базоваярадиостанциядляустановкипараметроводнонаправленного S1-каналаилиоднонаправленного Iu-канала, атакжеспособи второйсетевойузелдляуправленияоднонаправленным EPS-каналом. Беспроводноеустройствоотправляет, вовторойсетевойузел, запроснаустановлениеоднонаправленного EPS-каналадляслужбы. Запроссвязанс требуемымуровнемсоединяемостидляслужбы. Требуемыйуровеньотноситсяк вероятностиподдержаниясоединяемостипонаправлениюк первомусетевомуузлу. Второйсетевойузелдополнительнопринимаеттребуемыйуровеньсоединяемостидляслужбы. Второйсетевойузелотправляет, вбазовуюрадиостанцию, запроснаустановкупараметроводнонаправленного S1-каналаилиоднонаправленного Iu-канала. 9 н. и 22 з.п. ф-лы, 10 ил.

公开(公告)号：BR9811198B1

公开(公告)日：2015-02-03

申请号：BR9811198

申请日：1998-06-26

Applicant: ERICSSON TELEFON AB L M

Inventor： FRODIGH MAGNUS ,  ALMGREN MAGNUS ,  OLOFSSON HAAKAN

IPC: H04W36/30 ,  H04B7/26

Abstract: The invention relates to a method of performing handover in a mobile radio system. The mobile radio system performs quality measurements on signals transmitted (300) between a mobile terminal and predetermined radio base stations. Handover is performed (301, 302, 303) when some of the measured signal strengths exceeds the signal strength for the radio base station to which the mobile terminal for the moment is set up, added to a handover value. The handover value is dependent on measured signal strengths and neighboring cell relation values. The neighboring cell relation values depend on a probability for handover to be performed from one radio base station to another radio base station in the mobile radio system.

公开(公告)号：DE69841958D1

公开(公告)日：2010-12-02

申请号：DE69841958

申请日：1998-06-16

Applicant: ERICSSON TELEFON AB L M

Inventor： ALMGREN MAGNUS ,  FRODIGH MAGNUS ,  GUDMUNDSON MIKAEL ,  KRONESTEDT FREDRIC

IPC: H04B1/04 ,  H04B7/005 ,  H04B7/26 ,  H04W4/00

公开(公告)号：DE69734870D1

公开(公告)日：2006-01-19

申请号：DE69734870

申请日：1997-01-28

Applicant: ERICSSON TELEFON AB L M

Inventor： ALMGREN MAGNUS ,  BEMING JOHAN ,  FRODIGH MAGNUS

IPC: H04W16/02 ,  H04W16/12 ,  H04W48/06

Abstract: Circuitry, and an associated method for a multi-user communication system, such as a cellular communication system. Additional communication is selectively permitted in the communication system through operation of the circuitry. Levels of communication quality of ongoing communication in the communication system are determined. When a request is made to admit additional communication, the additional communication is admitted only when the level of communication quality is better than a selected threshold.

公开(公告)号：AU758365B2

公开(公告)日：2003-03-20

申请号：AU1088900

申请日：1999-10-01

Applicant: ERICSSON TELEFON AB L M

Inventor： FRODIGH MAGNUS ,  ALMGREN MAGNUS ,  JOHANSSON CHRISTER ,  HALVARSSON MATS ,  KALLIN HARALD

IPC: H04J13/00 ,  H04B7/26 ,  H04W24/00 ,  H04Q7/34

Abstract: In a mobile telecommunication system the transmission quality is dependent on a wide range of radio conditions. A method for extracting a useful estimation of the radio environment of a mobile station in communication in order to predict how the radio conditions will change in the near future for a considered mobile station in the near future. A measurement report is sent from the mobile station to the base station. The quality measure in the measurement report is filtered over the area by a smoothing filter (220), and then processed through an updating filter (230) resulting in a time varying map (240). Several maps are classified (260). Classified data are grouped (270) resulting in the final map, which is stored in a database (280). The final map may be used to enhance the performance of radio network algorithms.

公开(公告)号：AU754661B2

公开(公告)日：2002-11-21

申请号：AU1303100

申请日：1999-10-01

Applicant: ERICSSON TELEFON AB L M

Inventor： JOHANSSON CHRISTER ,  FRODIGH MAGNUS

IPC: H04B7/005 ,  H04W36/06 ,  H04W36/08 ,  H04W36/22 ,  H04W52/04 ,  H04Q7/38

Abstract: The present invention provides a method by which users may be moved between time slots or between base stations in order to better utilize the MCPA output power resources. According to an exemplary embodiment of the present invention, the power of all transceivers served by a certain MCPA is compared to a threshold value X. The value X is at least related to the capability of the MCPA in terms of output power. If at no times (i.e., at all time slots), the sum of the output power exceeds the threshold value X, it is assumed that the MCPA can handle all simultaneous transmissions. If, during at least one time slot it is found that the required output power exceeds the capability of the serving MCPA, then a reallocation or load sharing algorithm is invoked. The reallocation algorithm searches for time slots to which a reallocation could be performed within the same base station or number of transceivers served by the MCPA. If no time slots can handle users from the time slot in which the MCPA limit is exceeded, then a load sharing algorithm is activated and one starts to look for transmission resources in transceivers served by other MCPAs, e.g., other cells. A number of alternative embodiments of the invention is described, which relates to the way in which the reallocation or load sharing is performed. By reallocating or moving users of a particular kind, e.g., single slot users, and avoiding reallocation of users of other particular kinds, the load sharing and reallocation are further improved.

公开(公告)号：AU6039800A

公开(公告)日：2001-01-30

申请号：AU6039800

申请日：2000-06-29

Applicant: ERICSSON TELEFON AB L M

Inventor： HEDBERG BO ,  FRODIGH MAGNUS ,  JOHANSSON CHRISTER ,  ERIKSSON PATRIK

IPC: H04B7/005 ,  H04L5/06 ,  H04L27/26

Abstract: A transmit power control system and method is provided which utilizes an efficient allocation of average output power of a multi-carrier power amplifier (MCPA), the average output power being a weighted average of the actual power over multiple time slots. Periodically, using the efficient allocation system and method, there will be short periods where the desired average output power will exceed the maximum tolerable power of the MCPA, P MCPA . These short periods in which the desired output power will exceed PMCPA are handled by a system and method which produces a reduced margin between the total power per time slot and PMCPA . This reduced margin allows the MCPA to serve a larger number of users per time slot than conventional MCPAs. Alternatively, the MCPA can serve the same number of users as a conventional MCPA, but with higher demands on output power for each user and/or more efficient use of the MCPA's resources.