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公开(公告)号：JP2001186174A
公开(公告)日：2001-07-06
申请号：JP2000355219
申请日：2000-11-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BHATOOLAUL DAVID LAHIRI , CAO QIANG , CHARRIERE PATRICK , LIM SEAU SIAN
Abstract: PROBLEM TO BE SOLVED: To provide a data packet for a mobile telecommunication system. SOLUTION: The data packet, for instance, a length index field 16 of variable grain is prepared in the protocol data unit(PDU) of a universal mobile telecommunication system(UMTS), on the basis of a payload length to be transmitted. An additional field 14 of a single bit length is provided to show the grain of the length index field. Thus, the resolution of a header can be increased, while maintaining the overhead of extra field bits low. This method consists of a process (a) in which a data length is evaluated and a unit suitable to represent the length is selected from among a plurality of possible unit (32 and 34), a process (b) in which a grain field is set so as to define the suitable unit selected to show the data length (36 and 40), and a process (c) in which the length index field is set so as to show the data length (38 and 42).
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公开(公告)号：DE60214010D1
公开(公告)日：2006-09-28
申请号：DE60214010
申请日：2002-11-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： QIANG CAO SWINDON , SAPIANO PHILIP , CHARRIERE PATRICK , LIM SEAU LIM
Abstract: A method is provided of providing to a mobile user terminal (16) a set of measurement reporting criteria to be applied by the mobile user terminal) in respect of a predetermined cell (14) of a radio telecommunications network. The network comprises a plurality of cells (14) and a controller (10,20). The method comprises the controller selecting the set of criteria from stored sets of criteria, one set of which is a default set (34,34',34") for all cells under the control of the controller, and another set of which is a cell-specific set (36,36',36") of criteria.
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公开(公告)号：AT336871T
公开(公告)日：2006-09-15
申请号：AT02257634
申请日：2002-11-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： QIANG CAO , SAPIANO PHILIP , CHARRIERE PATRICK , LIM SEAU LIM
Abstract: A method is provided of providing to a mobile user terminal (16) a set of measurement reporting criteria to be applied by the mobile user terminal) in respect of a predetermined cell (14) of a radio telecommunications network. The network comprises a plurality of cells (14) and a controller (10,20). The method comprises the controller selecting the set of criteria from stored sets of criteria, one set of which is a default set (34,34',34") for all cells under the control of the controller, and another set of which is a cell-specific set (36,36',36") of criteria.
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公开(公告)号：DE60212971D1
公开(公告)日：2006-08-17
申请号：DE60212971
申请日：2002-10-15
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CAO QIANG , CHARRIERE PATRICK , LIM SEAU SIAN , SAPIANO PHILIP
Abstract: The method involves providing a network node (14) of a data frame from a mobile user terminal (20). For each cell (18,22) delay due to transfer of representation of the received data frame across interfaces between the nodes along a transfer path to node (14) is estimated by determining contribution to the delay caused by each interface along transfer path. Cells (18, 22) are selected dependent upon the associated delays. An independent claim is also included for a network for mobile telecommunication.
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公开(公告)号：GB2384650B
公开(公告)日：2003-12-24
申请号：GB0201880
申请日：2002-01-28
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CAO QIANG , CHARRIERE PATRICK , LIM SEAU SIAN
Abstract: A telecommunications network comprises a base station and a mobile station in use in call connection on at least one uplink channel for communicating user data. The base station is operative such that on receipt of a command to transfer to and/or add at least one other uplink channel for communicating user data, the at least one other uplink channel is allocated to the call connection after a predetermined period during which power level adjustment is undertaken to compensate for mobile station movement.
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Patent Agency Ranking
公开(公告)号：GB2369011B
公开(公告)日：2002-09-11
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
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. The battery data can be used to inform a caller that, for example, a called user's apparatus has reduced or limited battery capacity and thus that the expected duration of a call is limited.
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公开(公告)号：DE60132564T2
公开(公告)日：2009-01-29
申请号：DE60132564
申请日：2001-05-25
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CAO QIANG , CHARRIERE PATRICK , DAVIES RICHARD LLEWELYN
Abstract: A telecommunications network comprising a first unit and a second unit. The second unit measures the accuracy with which it receives data and transmits a value representing that accuracy to the first unit. The first unit adjusts its maximum transmission power to the second unit dependent upon said value.
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公开(公告)号：DE60028179T2
公开(公告)日：2007-03-15
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.
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公开(公告)号：AT332616T
公开(公告)日：2006-07-15
申请号：AT02257151
申请日：2002-10-15
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CAO QIANG , CHARRIERE PATRICK , LIM SEAU SIAN , SAPIANO PHILIP
Abstract: The method involves providing a network node (14) of a data frame from a mobile user terminal (20). For each cell (18,22) delay due to transfer of representation of the received data frame across interfaces between the nodes along a transfer path to node (14) is estimated by determining contribution to the delay caused by each interface along transfer path. Cells (18, 22) are selected dependent upon the associated delays. An independent claim is also included for a network for mobile telecommunication.
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公开(公告)号：DE60207981D1
公开(公告)日：2006-01-19
申请号：DE60207981
申请日：2002-04-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CAO QIANG , CHARRIERE PATRICK , LIM SEAU SIAN
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.
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