公开(公告)号：GB2369008B

公开(公告)日：2002-09-11

申请号：GB0027688

申请日：2000-11-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BHATOOLAUL DAVID LAHIRI ,  CAO QIANG ,  CHARRIERE PATRICK ,  LIM SEAU SIAN

IPC: H04W88/02 ,  H04Q7/34 ,  H04Q7/22

Abstract: Battery operated user equipment is disclosed for use in a radio telecommunications network, including means for monitoring the state of charge of the battery and means for communicating state of charge data to a base station during call set up.

公开(公告)号：CA2323645A1

公开(公告)日：2001-05-23

申请号：CA2323645

申请日：2000-10-18

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BHATOOLAUL DAVID LAHIRI ,  CHARRIERE PATRICK ,  CAO QIANG ,  LIM SEAU SIAN

IPC: H04L12/70 ,  H04L12/933 ,  H04Q11/04 ,  H04W28/02 ,  H04W88/18 ,  H04W92/04 ,  H04Q7/36

Abstract: In a data packet, e.g. a PDU of the UMTS, a length indicator field (16) of variable granularity is created, depending on the exact length of the payload to be transmitted. An additional field (14) is provided, a single bit in length, to indicate the granularity of the length indicator field. This increases the resolution of the header, whilst keeping low an overhead of extra field bits. The method of the invention comprises: a. assessing (32, 34) the length of the data to determine the appropriate units, from a plurality of possible units, in which the length should be expressed; b. setting (36, 40) a granularity field to define said appropriate units in which the length of the data is to be indicated; and c. setting (38, 42) the length indicator field to indicate the data length.

公开(公告)号：DE60207981T2

公开(公告)日：2006-08-03

申请号：DE60207981

申请日：2002-04-10

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CAO QIANG ,  CHARRIERE PATRICK ,  LIM SEAU SIAN

IPC: H04W36/14 ,  H04W48/10 ,  H04W48/12

Abstract: A method is provided of informing mobile user terminals (12) camped on a cell of a base station (8) of a radio telecommunications network that a service is unavailable, such that a mobile user terminal (12) desirous of said service is handed over to another cell which provides said service. The method comprises informing the terminals (12) that selectably at least one of circuit-switched services (4) and packet-switched services (6) are unavailable.

公开(公告)号：DE60028179D1

公开(公告)日：2006-06-29

申请号：DE60028179

申请日：2000-03-14

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BHATOOLAUL DAVID LAHIRI ,  CAO QIANG ,  CHARRIERE PATRICK ,  LIM SEAU SIAN

IPC: H04B7/00 ,  H04J13/00 ,  H04B7/26 ,  H04J3/00 ,  H04M3/00 ,  H04W36/08 ,  H04W52/00 ,  H04W52/04 ,  H04W74/08

Abstract: When a mobile is switched on in a cellular system, it first searches for the best cell that it can connect to and then attempts to send a message to the best cell found. In CDMA cellular systems, the likelihood of a mobile's RACH message being successfully received by a cell is largely dependent on its transmit power. Unfortunately having all mobiles transmit at the maximum power possible is in many circumstances not only unnecessary but also unacceptable due to the resultant intra-cell interference generated. A cellular mobile telephone network is disclosed in which a mobile station requests service in data modulated on a common random access channel (RACH) in a format associated with first a cell in which the mobile station is located. Base stations in cells neighbouring the first cell, are configured to demodulate the RACH message burst having the format associated with the first cell, and to pass the demodulated data to a radio network controller (RNC). This enables the average power required for a successful RACH transmission to be reduced.

公开(公告)号：DE69924998T2

公开(公告)日：2006-05-04

申请号：DE69924998

申请日：1999-11-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BHATOOLAUL DAVID LAHIRI ,  CAO QIANG ,  CHARRIERE PATRICK ,  LIM SEAU SIAN ,  MUECKENHEIM JENS

IPC: H04L12/56 ,  H04L12/28 ,  H04W48/12 ,  H04W74/08 ,  H04W84/04

公开(公告)号：DE69924998D1

公开(公告)日：2005-06-02

申请号：DE69924998

申请日：1999-11-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BHATOOLAUL DAVID LAHIRI ,  CAO QIANG ,  CHARRIERE PATRICK ,  LIM SEAU SIAN ,  MUECKENHEIM JENS

IPC: H04L12/28 ,  H04L12/56 ,  H04W48/12 ,  H04W74/08 ,  H04W84/04 ,  H04Q7/22 ,  H04Q7/38

公开(公告)号：GB2369011A

公开(公告)日：2002-05-15

申请号：GB0027697

申请日：2000-11-13

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BHATOOLAUL DAVID LAHIRI ,  LIM SEAU SIAN ,  CAO QIANG ,  CHARRIERE PATRICK

IPC: H04W52/02 ,  H04Q7/32 ,  H04Q7/22

Abstract: User equipment for use in a mobile communication network has a data store 20 and a processor 2 for writing data received from a base station in the network to the store. The user equipment comprises means 28 for monitoring the charge state of the battery 26 and reporting to the base station during call set-up if there is insufficient battery life for the amount of data to be transferred. The call may be refused or terminated accordingly.

公开(公告)号：BR0005403A

公开(公告)日：2001-08-07

申请号：BR0005403

申请日：2000-11-16

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BHATOOLAUL DAVID LAHIRI ,  CAO QIANG ,  CHARRIERE PATRICK ,  LIM SEAU SIAN

IPC: H04L12/70 ,  H04L12/933 ,  H04Q11/04 ,  H04W28/02 ,  H04W88/18 ,  H04W92/04 ,  H04Q7/22

Abstract: In a data packet, e.g. a PDU of the UMTS, a length indicator field (16) of variable granularity is created, depending on the exact length of the payload to be transmitted. An additional field (14) is provided, a single bit in length, to indicate the granularity of the length indicator field. This increases the resolution of the header, whilst keeping low an overhead of extra field bits. The method of the invention comprises: a. assessing (32, 34) the length of the data to determine the appropriate units, from a plurality of possible units, in which the length should be expressed; b. setting (36, 40) a granularity field to define said appropriate units in which the length of the data is to be indicated; and c. setting (38, 42) the length indicator field to indicate the data length.

公开(公告)号：DE602005013021D1

公开(公告)日：2009-04-16

申请号：DE602005013021

申请日：2005-04-15

Applicant: LUCENT TECHNOLOGIES INC

Inventor： BRUECK STEFAN ,  MUECKENHEIM JENS ,  CHARRIERE PATRICK

IPC: H04B7/005 ,  H04B7/26 ,  H04W52/12 ,  H04W52/34

Abstract: Methods of providing power overload control in a communication system having a least one base station serving one or more users of at least one cell are described which may avoid an overload condition in the system. In one aspect, a target signal-to-interference ratio (SIR target ) may be controlled for inner loop power control implemented by the base station, so as to maintain the loading of the communication system below an overload condition. In another aspect, a target block error rate (BLER target ) may be controlled for outer loop power control implemented by the base station, so as to maintain the loading of communication system below an overload condition.

公开(公告)号：DE60212571T2

公开(公告)日：2007-06-21

申请号：DE60212571

申请日：2002-04-23

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CAO QIANG ,  CHARRIERE PATRICK ,  LIM SEAU SIAN ,  SAPIANO PHILIP CHARLES

IPC: H04L1/18 ,  H04L1/16 ,  H04L12/64 ,  H04N7/24

Abstract: A radio telecommunications network comprises a transmitter (2) and a receiver (4). The transmitter (2) is operative to send signals indicative of data, and the receiver (4) is operative to receive the signals (12) and decode the signals to determine the data. The receiver (4) comprises indicator means to send to the transmitter (2) an indication of whether data has been correctly determined, and the transmitter (2) is operative to retransmit at least some data not correctly determined. The receiver (4) further comprises a buffer (14) operative to store the determined data. The buffer (14) is operative to output the determined data at a predetermined rate.