公开(公告)号：DE69430095D1

公开(公告)日：2002-04-18

申请号：DE69430095

申请日：1994-06-14

Applicant: ERICSSON TELEFON AB L M

Inventor： GRIMLUND ERIK ,  EWERBRING LARS-MAGNUS ,  WILLARS HANS

IPC: H04J13/04 ,  H04B7/005 ,  H04B7/26 ,  H04L1/00 ,  H04W28/06 ,  H04W36/18 ,  H04W52/26 ,  H04W52/28 ,  H04W52/44 ,  H04J13/00 ,  H04Q7/20

Abstract: Introduction of discontinuous transmission in CDMA communications techniques is achieved by using a lower spreading ratio, whereby the spread information only fills an information part of a frame in a compressed mode, leaving an idle part of the frame in which to perform other functions, such as evaluation of other frequencies and execution of seamless handover between frequencies.

公开(公告)号：DE69430095T2

公开(公告)日：2002-10-31

申请号：DE69430095

申请日：1994-06-14

Applicant: ERICSSON TELEFON AB L M

Inventor： GRIMLUND ERIK ,  EWERBRING LARS-MAGNUS ,  WILLARS HANS

IPC: H04J13/04 ,  H04B7/005 ,  H04B7/26 ,  H04L1/00 ,  H04W28/06 ,  H04W36/18 ,  H04W52/26 ,  H04W52/28 ,  H04W52/44 ,  H04J13/00 ,  H04Q7/20

Abstract: Introduction of discontinuous transmission in CDMA communications techniques is achieved by using a lower spreading ratio, whereby the spread information only fills an information part of a frame in a compressed mode, leaving an idle part of the frame in which to perform other functions, such as evaluation of other frequencies and execution of seamless handover between frequencies.

公开(公告)号：DE69827129D1

公开(公告)日：2004-11-25

申请号：DE69827129

申请日：1998-05-29

Applicant: ERICSSON TELEFON AB L M

Inventor： WILLARS HANS ,  NAESMAN ANDERS

IPC: H04B7/26 ,  H04J3/06 ,  H04J13/00 ,  H04L7/08 ,  H04W36/18 ,  H04W56/00 ,  H04Q7/38

Abstract: The present invention relates to a method and an arrangement for synchronising communication of framed data via asynchronous base stations (BS1, BS2) in a cellular communications system, e.g. a CDMA-system. The synchronisation method is performed continuously by sending out certain system frame counter states from a central node in the system to all its connected base stations (BS1, BS2). Each base station (BS1, BS2) comprises a local frame counter (LFCBS1; LFCBS2), which generates local frame counter states (t1(1)-t1(4); t2(1)-t2(4)) correlated to the system frame counter states. Transmission of information via the base stations (BS1, BS2) is synchronised by assigning each data frame (DF(1)-DF(4)) a particular frame number, which is given by the local frame counter states (t1(1)-t1(4); t2(1)-t2(4)), so that data frames (DF(1)-DF(4)) having identical numbers are contain copies of a certain data packet. Correct frame numbers are derived from common downlink channel offset measurements (CCO1; CCO2) carried out in the base stations (BS1, BS2), and timing advance values (TA2) and downlink channel offsets (DCO1; DCO2) calculated in the central node.

公开(公告)号：DE69933470D1

公开(公告)日：2006-11-16

申请号：DE69933470

申请日：1999-11-30

Applicant: ERICSSON TELEFON AB L M

Inventor： WILLARS HANS ,  LAGNEBORG JOHAN

IPC: H04M3/42 ,  H04M3/00 ,  H04W68/00

Abstract: When a mobile terminal in a mobile radio network has a user data connection established to a core network node, and receives a page message on a paging channel from a second core network node to which the terminal has no data connection established, the mobile terminal can send a page response message to the second core network node on the existing signaling channel between the mobile terminal and the radio access network associated with the established data connection to that core network node. The page response then triggers a multiplexing between the mobile terminal and radio access network, of the established connection with the first core network node and the desired call connection (precipitated by the page request) from the second core network node. This way, the mobile station can receive simultaneous calls from two different core network nodes over a common traffic and signaling connection.

公开(公告)号：DE69713882T2

公开(公告)日：2003-02-27

申请号：DE69713882

申请日：1997-04-16

Applicant: ERICSSON TELEFON AB L M

Inventor： DAHLMAN BENGT ,  EWERBRING LARS-MAGNUS ,  GRIMLUND ERIK ,  WILLARS HANS

IPC: H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04J13/12 ,  H04J13/16 ,  H04L1/00 ,  H04W36/18 ,  H04W36/30 ,  H04W36/36 ,  H04W48/12 ,  H04W52/28 ,  H04W52/44 ,  H04Q7/38

Abstract: Introduction of discontinuous transmission in CDMA communications techniques is achieved by using selectively puncturing coded output of a convolutional encoder. By temporarily increasing the coding rate during a frame, information only fills an information part of a frame in a compressed mode, leaving an idle part of the frame in which to perform other functions, such as evaluation of other frequencies for use in handover between frequencies.

公开(公告)号：DE69933470T2

公开(公告)日：2007-08-16

申请号：DE69933470

申请日：1999-11-30

Applicant: ERICSSON TELEFON AB L M

Inventor： WILLARS HANS ,  LAGNEBORG JOHAN

IPC: H04M3/42 ,  H04M3/00 ,  H04W68/00

Abstract: When a mobile terminal in a mobile radio network has a user data connection established to a core network node, and receives a page message on a paging channel from a second core network node to which the terminal has no data connection established, the mobile terminal can send a page response message to the second core network node on the existing signaling channel between the mobile terminal and the radio access network associated with the established data connection to that core network node. The page response then triggers a multiplexing between the mobile terminal and radio access network, of the established connection with the first core network node and the desired call connection (precipitated by the page request) from the second core network node. This way, the mobile station can receive simultaneous calls from two different core network nodes over a common traffic and signaling connection.

公开(公告)号：DE69827129T2

公开(公告)日：2005-03-17

申请号：DE69827129

申请日：1998-05-29

Applicant: ERICSSON TELEFON AB L M

Inventor： WILLARS HANS ,  NAESMAN ANDERS

IPC: H04B7/26 ,  H04J3/06 ,  H04J13/00 ,  H04L7/08 ,  H04W36/18 ,  H04W56/00 ,  H04Q7/38

Abstract: The present invention relates to a method and an arrangement for synchronising communication of framed data via asynchronous base stations (BS1, BS2) in a cellular communications system, e.g. a CDMA-system. The synchronisation method is performed continuously by sending out certain system frame counter states from a central node in the system to all its connected base stations (BS1, BS2). Each base station (BS1, BS2) comprises a local frame counter (LFCBS1; LFCBS2), which generates local frame counter states (t1(1)-t1(4); t2(1)-t2(4)) correlated to the system frame counter states. Transmission of information via the base stations (BS1, BS2) is synchronised by assigning each data frame (DF(1)-DF(4)) a particular frame number, which is given by the local frame counter states (t1(1)-t1(4); t2(1)-t2(4)), so that data frames (DF(1)-DF(4)) having identical numbers are contain copies of a certain data packet. Correct frame numbers are derived from common downlink channel offset measurements (CCO1; CCO2) carried out in the base stations (BS1, BS2), and timing advance values (TA2) and downlink channel offsets (DCO1; DCO2) calculated in the central node.

公开(公告)号：DE69713882D1

公开(公告)日：2002-08-14

申请号：DE69713882

申请日：1997-04-16

Applicant: ERICSSON TELEFON AB L M

Inventor： DAHLMAN BENGT ,  EWERBRING LARS-MAGNUS ,  GRIMLUND ERIK ,  WILLARS HANS

IPC: H04B1/707 ,  H04B7/005 ,  H04B7/26 ,  H04J13/00 ,  H04J13/12 ,  H04J13/16 ,  H04L1/00 ,  H04W36/18 ,  H04W36/30 ,  H04W36/36 ,  H04W48/12 ,  H04W52/28 ,  H04W52/44 ,  H04Q7/38

Abstract: Introduction of discontinuous transmission in CDMA communications techniques is achieved by using selectively puncturing coded output of a convolutional encoder. By temporarily increasing the coding rate during a frame, information only fills an information part of a frame in a compressed mode, leaving an idle part of the frame in which to perform other functions, such as evaluation of other frequencies for use in handover between frequencies.