公开(公告)号：DE60113875D1

公开(公告)日：2005-11-10

申请号：DE60113875

申请日：2001-11-27

Applicant: ERICSSON TELEFON AB L M

Inventor： ZIMMERMANN GERD ,  LI HUI ,  WENGER FABIAN ,  LINDSKOG JAN ,  PAULI MATHIAS

IPC: H04L1/00 ,  H04L1/08

Abstract: In a packet transmission system, especially wireless transmission system, where data is transmitted in packets at different error protection levels and where the error protection level of one packet (= the succeeding packet) may differ from the error protection level of a preceding packet without providing code termination between the said preceding and the said succeeding packet the performance may degrade in case a different error protection level is used by the preceding packet and the succeeding packet. The invention proposes in these cases to insert a supplementary packet between the preceding and the succeeding packet whereby the error protection level of the supplementary packet is higher than the lowest error protection level that is used either by the preceding or the succeeding packet.

公开(公告)号：AU2002347734A1

公开(公告)日：2004-06-07

申请号：AU2002347734

申请日：2002-11-07

Applicant: ERICSSON TELEFON AB L M

Inventor： LINDSKOG JAN ,  RYDNELL GUNNAR ,  WALTHER ROGER ,  KRONQUIST GORAN

IPC: H04L27/26

Abstract: Method of communicating frames of digital data by OFDM modulated signals comprising a first plurality of payload carrying sub-channels and a second plurality of pilot carrying sub-channels, whereby consecutive frames of payload data is are associated with a given pilot configuration and transmitted. Prior to the transmission of a frame of payload data, each of the plurality of pilot configurations are evaluated with regard to PAPR, whereby the pilot configuration being associated with the lowest PAPR value is being chosen for transmission.

公开(公告)号：AU2962902A

公开(公告)日：2002-06-18

申请号：AU2962902

申请日：2001-12-07

Applicant: ERICSSON TELEFON AB L M

Inventor： GRAPATIN PER ,  LINDSKOG JAN ,  RYDNELL GUNNAR

IPC: H04L12/28 ,  H04L12/56 ,  H04L12/00

公开(公告)号：BR0012026A

公开(公告)日：2002-05-14

申请号：BR0012026

申请日：2000-06-20

Applicant: ERICSSON TELEFON AB L M

Inventor： LINDSKOG JAN ,  POHJANVOURI TIMO ,  RYDNELL GUNNAR

IPC: H04B7/26 ,  H04W72/04 ,  H04W72/12 ,  H04W76/04 ,  H04Q7/22

Abstract: The present invention provides a method and system for reducing the delay of the transmission of packet data including receiving data from a network via a base station and assigning a mobile station to a packet channel having an active mode and a variable fast page mode. Packet data is exchanged in the active mode until a first inactivity timer expires. The base station and mobile station are then switched to a variable fast page mode in which additional packet data can be exchanged, wherein the variable fast page mode has a greater delay between transmission opportunities than the active mode. The variable fast page mode schedules specific time slots which are monitored for the transmission and receipt of successive packets. In addition, the periodicity of future time slots can vary based on the delay between the successive packets. The mobile station remains in variable fast page mode until the expiration of a second inactivity timer or at the reception of a transmission opportunity and subsequent data transfer to or from the mobile station.

公开(公告)号：BR0009953A

公开(公告)日：2002-01-08

申请号：BR0009953

申请日：2000-03-28

Applicant: ERICSSON TELEFON AB L M

Inventor： RAITH KRISTER ,  DIACHINA JOHN ,  LINDSKOG JAN ,  RYDNELL GUNNAR

IPC: H04W56/00 ,  H04W72/04 ,  H04Q7/22

公开(公告)号：GB2361845A

公开(公告)日：2001-10-31

申请号：GB0109100

申请日：1999-10-08

Applicant: ERICSSON TELEFON AB L M

Inventor： LINDSKOG JAN ,  RYNDELL GUNNAR

IPC: H04W36/06 ,  H04W72/04 ,  H04Q7/22 ,  H04Q7/38

Abstract: The present invention provides a rehash timer in both the mobile station and the base station in order to synchronize the channel selection process in a radio communication system and to avoid the need to store long rehashing lists in the base station.

公开(公告)号：SE0103394D0

公开(公告)日：2001-10-12

申请号：SE0103394

申请日：2001-10-12

Applicant: ERICSSON TELEFON AB L M

Inventor： LINDSKOG JAN

IPC: H04B20060101 ,  H04B

公开(公告)号：AU6035200A

公开(公告)日：2001-01-22

申请号：AU6035200

申请日：2000-06-20

Applicant: ERICSSON TELEFON AB L M

Inventor： LINDSKOG JAN ,  RYDNELL GUNNAR ,  POHJANVUORI TIMO

IPC: H04B7/26 ,  H04W72/04 ,  H04W72/12 ,  H04W76/04 ,  H04Q7/22

Abstract: The present invention provides a method and system for reducing the delay of the transmission of packet data including receiving data from a network via a base station and assigning a mobile station to a packet channel having an active mode and a variable fast page mode. Packet data is exchanged in the active mode until a first inactivity timer expires. The base station and mobile station are then switched to a variable fast page mode in which additional packet data can be exchanged, wherein the variable fast page mode has a greater delay between transmission opportunities than the active mode. The variable fast page mode schedules specific time slots which are monitored for the transmission and receipt of successive packets. In addition, the periodicity of future time slots can vary based on the delay between the successive packets. The mobile station remains in variable fast page mode until the expiration of a second inactivity timer or at the reception of a transmission opportunity and subsequent data transfer to or from the mobile station.

公开(公告)号：CA2370858A1

公开(公告)日：2000-11-02

申请号：CA2370858

申请日：2000-03-28

Applicant: ERICSSON TELEFON AB L M

Inventor： LINDSKOG JAN ,  RAITH ALEX KRISTER ,  DIACHINA JOHN ,  RYDNELL GUNNAR

IPC: H04W56/00 ,  H04W72/04 ,  H04Q7/22

Abstract: The present invention provides a system and method for reducing the delay in reassigning a mobile station to a new channel in those instances where the n ew channel is synchronous with the old channel. According to exemplary embodiments of the present invention, a base station transmits, in a channel reassignment message to a mobile station, channel synchronization informatio n that notifies the mobile station whether or not the new channel to which the mobile station is to tune is synchronous with the old channel from which the mobile station is transferred. As a result, performance of a channel synchronization operation can be avoided in those instances where synchronou s channels exist.

公开(公告)号：AU4322600A

公开(公告)日：2000-10-23

申请号：AU4322600

申请日：2000-04-07

Applicant: ERICSSON TELEFON AB L M

Inventor： LINDSKOG JAN ,  MALMGREN GORAN ,  LI HUI ,  RYDNELL GUNNAR ,  NILSSON FREDRIK ,  MIKLOS GYORGY

IPC: H04L1/16 ,  H04L1/18 ,  H04L12/28 ,  H04L29/08 ,  H04L1/00

Abstract: In a wireline or wireless telecommunications system or data network, which employs a Selective Repeat Automatic Repeat Request (ARQ) to convey data packet reception status for a sequence of data packets grouped together into a number of blocks of data packets, partial bit mapping is employed to improve efficiency, particularly with respect to bandwidth. This may be accomplished, more specifically, by including in the ARQ message that is sent from the receiver to the sender, a number of partial bitmaps, along with a corresponding number of bitmap block numbers, where a first bitmap block number identifies a particular one of the blocks of data packets and the corresponding bitmap defines the reception status of the data packets in that block. Each of the remaining bitmap block numbers identify an additional block of data packets relative to the first block of data packets. Accordingly, the remaining bitmap block numbers require fewer bits to identify their corresponding data packet blocks.