公开(公告)号：JP2002204471A

公开(公告)日：2002-07-19

申请号：JP2001347146

申请日：2001-11-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： ELOY STEPHANE ,  FALAKI HAMID REZA ,  KARIMI HAMID REZA ,  GOFF YVON LE ,  YOUNG GORDON PETER

IPC: H04J3/00 ,  H04B7/26 ,  H04W16/26 ,  H04Q7/36

Abstract: PROBLEM TO BE SOLVED: To provide an increased cell seize with minimum modification to hardware and software. SOLUTION: In a UTRAN(UMTS(Universal Mobile Telephone System) Terrestrial Radio Access Network) operating time division duplexing, one time slot 22 (11) in each frame is maintained in a no-transmit condition, all preceding time slots 22 (1) to 22 (10) being uplink time slots and all succeeding time slots 22 (1) to 22 (15) being down link time slots (or vice versa). The cell size is markedly increased.

公开(公告)号：JP2002238072A

公开(公告)日：2002-08-23

申请号：JP2001373800

申请日：2001-12-07

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BRIAND JACQUES ,  FALAKI HAMID REZA ,  KARIMI HAMID REZA ,  GOFF YVON LE ,  SOULABAIL ROLAND

IPC: H04J3/00 ,  H04B7/212 ,  H04B7/26 ,  H04L7/10 ,  H04W56/00 ,  H04Q7/36

Abstract: PROBLEM TO BE SOLVED: To provide a frame structure for cellular telecommunication systems. SOLUTION: In order to double the size of cells for a UMTS/ UTRAN(Universal Mobile Terrestrial System/UMTS Terrestrial Radio Access Network) system operating in time division mode (TDD) from 3.75 km to 7.5 km, the node B station defines a guard period (66) for a downlink slot followed by an adjacent uplink slot to be longer than the guard period (68) for an uplink slot, followed by an adjacent downlink slot, whereby the cell size is extended. Each UE(user equipment) adjusts its timing, in response to timing deviation signals (64) transmitted at the start of each downlink burst, so as to transmit an uplink burst which arrive at the node B, at the beginning of the next uplink slot.

公开(公告)号：BR0107055A

公开(公告)日：2002-08-06

申请号：BR0107055

申请日：2001-11-27

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BRIAND JACQUES ,  KARIMI HAMID REZA ,  GOFF YVON LE ,  SOULABAIL ROLAND ,  FALAKI HAMID REZA

IPC: H04J3/00 ,  H04B7/212 ,  H04B7/26 ,  H04L7/10 ,  H04W56/00 ,  H04Q7/36

Abstract: In order to double the size of cells for a UMTS/ UTRAN system operating in time division mode (TDD) from 3.75 km to 7.5 km, the node B station defines the guard period (66) for a downlink slot followed by an adjacent uplink slot to be longer than the guard period (68) for an uplink slot followed by an adjacent downlink slot, whereby the cell size is extended. Each UE adjusts its timing in reponse to timing deviation signals (64) transmitted at the start of each downlink bust, so as to transmit an uplink burst which arrive at the Node B, at the beginning of the next uplink slot.

公开(公告)号：AU9705801A

公开(公告)日：2002-06-13

申请号：AU9705801

申请日：2001-12-04

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BRIAND JACQUES ,  SOULABAIL ROLAND ,  GOFF YVON LE ,  KARIMI HAMID REZA ,  FALAKI HAMID REZA

IPC: H04J3/00 ,  H04B7/212 ,  H04B7/26 ,  H04L7/10 ,  H04W56/00 ,  H04L5/22

Abstract: In order to double the size of cells for a UMTS/ UTRAN system operating in time division mode (TDD) from 3.75 km to 7.5 km, the node B station defines the guard period (66) for a downlink slot followed by an adjacent uplink slot to be longer than the guard period (68) for an uplink slot followed by an adjacent downlink slot, whereby the cell size is extended. Each UE adjusts its timing in reponse to timing deviation signals (64) transmitted at the start of each downlink bust, so as to transmit an uplink burst which arrive at the Node B, at the beginning of the next uplink slot.