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公开(公告)号:DE60006700T2
公开(公告)日:2004-09-30
申请号:DE60006700
申请日:2000-12-20
Applicant: LUCENT TECHNOLOGIES INC
Inventor: CHENG FANG-CHEN , YOUNG GORDON PETER , TATESH SAID , CAO QIANG , CHARRIERE PATRICK
Abstract: In the UMTS, semi-static uplink and downlink connection parameters relating to the frequently-used services of voice, fax and web browsing are intermittently broadcast to mobile user equipment (20) which stores the parameters. When a mobile requests(30) one of those services, the relevant dynamic parameters are sent (32) over the radio interface and the mobile is asked whether it has in its store the relevant parameters for the requested service; if so (34), the call is set up; if not (36), the semi-static parameters relevant to the requested service are sent (38) to the user equipment. Considerable saving of radio resource results.
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公开(公告)号:DE60006700D1
公开(公告)日:2003-12-24
申请号:DE60006700
申请日:2000-12-20
Applicant: LUCENT TECHNOLOGIES INC
Inventor: CHENG FANG-CHEN , YOUNG GORDON PETER , TATESH SAID , CAO QIANG , CHARRIERE PATRICK
Abstract: In the UMTS, semi-static uplink and downlink connection parameters relating to the frequently-used services of voice, fax and web browsing are intermittently broadcast to mobile user equipment (20) which stores the parameters. When a mobile requests(30) one of those services, the relevant dynamic parameters are sent (32) over the radio interface and the mobile is asked whether it has in its store the relevant parameters for the requested service; if so (34), the call is set up; if not (36), the semi-static parameters relevant to the requested service are sent (38) to the user equipment. Considerable saving of radio resource results.
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公开(公告)号:CA2248515C
公开(公告)日:2003-04-15
申请号:CA2248515
申请日:1998-09-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor: CAO QIANG , BADEN CHARLOTTE CATHERINE ELIZ , FREIBERG LORENZ , READER DAVID JONATHAN
IPC: H04B7/212 , H04B7/216 , H04J3/00 , H04J3/02 , H04J3/24 , H04L12/56 , H04L29/10 , H04M1/00 , H04W74/00 , H04W74/04 , H04W80/00 , H04W84/04 , H04W99/00 , H04Q7/36
Abstract: The invention relates to mobile cellular communication systems in which asymmetric access to a time division duplex (TDD) communication channel is p rovided. The channel is divided (by TDD) into slots which are allocated to either upl ink communication or downlink communication by the base station in each cell. Ti ming of slots, and thus of compulsory uplink and downlink slots, is co-ordinated acr oss the cells of a system.
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公开(公告)号:GB2369009B
公开(公告)日:2002-10-09
申请号:GB0027690
申请日:2000-11-13
Applicant: LUCENT TECHNOLOGIES INC
Inventor: BHATOOLAUL DAVID LAHIRI , CAO QIANG , CHARRIERE PATRICK , LIM SEAU SIAN
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公开(公告)号:AU748635B2
公开(公告)日:2002-06-06
申请号:AU7166600
申请日:2000-11-17
Applicant: LUCENT TECHNOLOGIES INC
Inventor: BHATOOLAUL DAVID LAHIRI , CAO QIANG , CHARRIERE PATRICK , LIM SEAU SIAN
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.
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公开(公告)号:GB2369010A
公开(公告)日:2002-05-15
申请号:GB0027695
申请日:2000-11-13
Applicant: LUCENT TECHNOLOGIES INC
Inventor: BHATOOLAUL DAVID LAHIRI , LIM SEAU SIAN , CAO QIANG , CHARRIERE PATRICK
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. Non-urgent data may be sent to the user equipment at times of low network activity, for example at night. Accordingly, the processor is responsive to downlink signalling during the setting up of a data transfer call to inhibit any audible alert.
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公开(公告)号:GB2369008A
公开(公告)日:2002-05-15
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
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 for monitoring the capacity remaining in the store and reporting to the base station during call set-up if there is insufficient capacity for the amount of data to be transferred. The call may be refused or terminated accordingly.
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公开(公告)号:AU7166600A
公开(公告)日:2001-05-24
申请号:AU7166600
申请日:2000-11-17
Applicant: LUCENT TECHNOLOGIES INC
Inventor: BHATOOLAUL DAVID LAHIRI , LIM SEAU SIAN , CHARRIERE PATRICK , CAO QIANG
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.
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公开(公告)号:AU727121B2
公开(公告)日:2000-11-30
申请号:AU5266699
申请日:1999-10-01
Applicant: LUCENT TECHNOLOGIES INC
Inventor: CAO QIANG , FREIBERG LORENZ FRED , LIM SEAU SIAN , LIN JIE , READER DAVID JONATHAN , STANTON JAMES LESLIE
Abstract: There is disclosed a method of transmitting data in a code division multiple access system, comprising the steps of: outputting data blocks associated with a plurality of respective users in a plurality of corresponding data streams, the data blocks of each data stream being arranged in successive time frames of a constant, predetermined length; and multiplexing the data blocks on all the data streams for each given time frame. A communications system including circuitry for utilising such a method is also disclosed.
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公开(公告)号:AU1671000A
公开(公告)日:2000-10-04
申请号:AU1671000
申请日:1999-12-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor: BHATOOLAUL DAVID LAHIRI , LIM SEAU SIAN , CAO QIANG
Abstract: In a UMTS, the AICH is arranged to send, in addition to a signal acknowledging that a preamble from a mobile is at an acceptable strength, an additional signal indicating that the mobile is not currently permitted to send its message; this may apply when the BTS does not have hardware resources available. If the BTS can predict when the hardware will become available, the additional signal can include a time out (T) after which the mobile system can send its message signal.
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