公开(公告)号：AU3251101A

公开(公告)日：2001-09-03

申请号：AU3251101

申请日：2001-01-26

Applicant: ERICSSON TELEFON AB L M

Inventor： MAGNUSSON SVERKER ,  CRAIG STEPHEN ,  EDGREN ERIK ,  NYBERG HENRIK

IPC: H04B1/713

Abstract: 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 frequency hopping 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 hopping sequences 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.

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

IPC: H04B1/713 ,  H04J13/00 ,  H04J13/06

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.

公开(公告)号：AU6332200A

公开(公告)日：2001-04-30

申请号：AU6332200

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 ,  H04J13/00 ,  H04J13/06

公开(公告)号：DE60143470D1

公开(公告)日：2010-12-30

申请号：DE60143470

申请日：2001-01-26

Applicant: ERICSSON TELEFON AB L M

Inventor： MAGNUSSON SVERKER ,  CRAIG STEPHEN ,  EDGREN ERIK ,  NYBERG HENRIK

IPC: H04B1/713

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.

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

IPC: H04B1/713 ,  H04J13/00 ,  H04J13/06

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.