公开(公告)号：BRPI0418863A

公开(公告)日：2007-11-20

申请号：BRPI0418863

申请日：2004-07-01

Applicant: ERICSSON TELEFON AB L M

Inventor： FURUSKOR ANDERS ,  SIMONSSON ARNE ,  PETTERSSON JONAS ,  ROMMER STEFAN

IPC: H04B7/005

Abstract: In a wireless network using a carrier sense multiple access (CSMA) scheme is provided a method, system, devices and instruction sets for detecting transmission levels and adjusting the transmission levels for both a connection point and mobile stations within the network in order to reduce power consumption in network devices and minimize interference problems while keeping hidden node problems on a controlled level.

公开(公告)号：BR0016246A

公开(公告)日：2002-11-12

申请号：BR0016246

申请日：2000-12-01

Applicant: ERICSSON TELEFON AB L M

Inventor： JOVERBRING STEFAN ,  FURUSKOR ANDERS ,  ERIKSSON STEFAN

IPC: G01D1/00

公开(公告)号：BR9907854A

公开(公告)日：2000-10-24

申请号：BR9907854

申请日：1999-02-09

Applicant: ERICSSON TELEFON AB L M

Inventor： FURUSKOR ANDERS ,  FRODIGH MAGNUS CARL ,  JOHANSSON J CHRISTER

IPC: H04L1/00 ,  H04J3/24 ,  H04L1/12 ,  H04L1/20 ,  H04Q7/22 ,  H04Q7/28 ,  H04Q7/36

Abstract: A communication system supports multiple modulation/FEC coding schemes. One scheme is selected for initiating transmission on the link. The performance of the transmissions is evaluated after a variable update interval expires. The update interval is varied as a function of time, amount of information, LLC blocks, etc., in order to optimize throughput in the system. A shorter update interval can be used initially until an optimal modulation/FEC coding scheme is determined for a particular data transmission.

公开(公告)号：BR0008299A

公开(公告)日：2002-01-22

申请号：BR0008299

申请日：2000-02-11

Applicant: ERICSSON TELEFON AB L M

Inventor： JOVERBRING STEFAN ,  ERICSSON STEFAN ,  WALLMAN MATTIAS ,  FURUSKOR ANDERS

IPC: H04L1/00 ,  H04L1/12 ,  H04L1/18

Abstract: Control signalling for systems employing link adaptation and incremental redundancy is described. A link adaptation/incremental redundancy message can be transmitted from a receiving entity to a transmitting entity to inform the transmitting entity of the receiving entity's incremental redundancy status or preference. Another message, which indicates whether resegmentation should be performed for retransmitted blocks can also be transmitted from a receiving entity to a transmitting entity. Both of these messages can be used by the transmitting entity to determine an appropriate modulation/coding scheme for subsequent transmissions of both original data blocks and retransmitted data blocks. The messages can be used together or independently in either link (uplink or downlink) between a base station and a mobile station in a radiocommunication system.