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1.发明专利
公开(公告)号：JP2000174697A
公开(公告)日：2000-06-23
申请号：JP34292699
申请日：1999-12-02
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHUAH MOOI CHOO , YUE ON-CHING , ZHANG QINQING
Abstract: PROBLEM TO BE SOLVED: To discriminate a signal transmitted by a remote terminal whose strength is below a signal threshold by discriminating whether or not the strength of the received signal is larger than or equal to a 1st power threshold, allowing a receiver section to increase the signal strength by a prescribed amount and to re-transmit the signal with the enhanced power. SOLUTION: When the strength of a original signal transmitted by a remote terminal does not exceed a DTHRESHI (detection threshold level), a base station discriminates whether or not the signal exceeds a PTHRESHI (power threshold level). In the case that the strength of the received original signal exceeds the PTHRESHI, the base station transmits a PTHRESHI excess message to the remote terminal. Upon receipt of the message from a receiver section 406, the remote terminal uses a processor 402 to give a control signal to a transmitter section 408 to increase the transmission power level of the signal, and retransmits an access request signal to the base station.
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公开(公告)号：JP2000201172A
公开(公告)日：2000-07-18
申请号：JP34700899
申请日：1999-12-07
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BUDKA KENNETH CARL , CHUAH MOOI CHOO , YUE ON-CHING
Abstract: PROBLEM TO BE SOLVED: To attain a route optimization in a GPRS network by establishing a communication route between a support node included in a network under the visiting and a serving support node having the direct communication with a mobile station in the network under the visiting. SOLUTION: It is not needed to route a packet via a GGSN 60 of a home PLMN of an MS 40 after a route 62 is established between a CH 56 and the GGSN 60. Thereby, the conventional route non-efficiency caused between the MS 40 and the CH 56 is eliminated in a GPRS network. The packet can be routed via a the GGSN 60 of a PLMN 54 of a visiting destination. Thus, a route set among the MS 40, an SGSN 48 of the visiting destination, the GGSN 60 of the visiting destination and the CH 56 is much more effective than a conventional route that must be routed to another PLMN. An external host can access only the GGSN 60, based on a GSM/GPRS standard.
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3.发明专利
公开(公告)号：JP2000196664A
公开(公告)日：2000-07-14
申请号：JP26801899
申请日：1999-09-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： DOSHI BHARAT TARACHAND , HERNANDEZ-VALENCIA ENRIQUE , SRIRAM KOTIKALAPUDI , WANG YUNG-TERNG , YUE ON-CHING
Abstract: PROBLEM TO BE SOLVED: To insure service quality for IP network transmission traffic. SOLUTION: An IP network path used for IP packet transmission between a transmission side edge device and a destination edge device is identified, and bandwidth is virtually supplied to voice traffic. It is secured to meet voice delay requirement of a high priority by allowing a connection request for a new voice call based on residual free capacity after giving a priority to a voice packet. Also, a VP server 230 maintains data about bandwidth capacity of each path segment in an IP network 205, the data of the bandwidth is supplied to a signaling gateway 250, it is allowed or rejected based on the quantity of empty bandwidth, and the decision of permission or rejection is notified to the transmission side edge device. Thus, guarantee about allowable delay and jitters can be attained without having to directly send a signal to respective IP routers constituting the IP network path.
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4.发明专利
公开(公告)号：JP2000188784A
公开(公告)日：2000-07-04
申请号：JP29173999
申请日：1999-10-14
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHUAH MOOI CHOO , YUE ON-CHING , ZHANG QINQING
Abstract: PROBLEM TO BE SOLVED: To obtain a method and a system to provide access priority order control in a communication system, especially to obtain a method and a system where access priority order control is provided in a medium access control protocol in the next generation mobile telecommunication system. SOLUTION: The access priority order control method for a remote terminal in a radio communication system typically has a step where a chip delay related to an access request signal is selected among different chip delays related respectively to access priority order classes set up in advance and a step where the access request signal is sent to a base station in the radio communication system through a selected logical access channel.
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公开(公告)号：JP2000228787A
公开(公告)日：2000-08-15
申请号：JP34278699
申请日：1999-12-02
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHUAH MOOI CHOO , YUE ON-CHING , ZHANG QINQING
IPC: A41C3/00 , A41C3/10 , A41C3/12 , A41C3/14 , A61B19/00 , A61F5/00 , A61F5/01 , A61F5/03 , A61F5/042 , H04B7/204 , H04J3/00 , H04W74/08 , H04Q7/38 , H04J13/00 , H04L12/28 , H04Q7/28
Abstract: PROBLEM TO BE SOLVED: To obtain a method and a system for providing a short random access channel (RACH) frame in order to decrease the delay. SOLUTION: An enhanced RACH access burst configuration and frame structure are provided. That is, a method and a system are provided to support a plurality of access burst lengths in a UMTS access channel structure. Preferably two access burst lengths of 5 ms and 10 ms are supported. The configuration above is effective to an application desiring a short access delay real time traffic of voice and other form. This method and the system are to support a plurality of frame sizes and can reduce an access delay furthermore by allowing a physical layer of UMTS to support a plurality of frame sizes. In the case that the RACH is used for a UMTS short message service, an access burst signal sent from a remote terminal to the RACH may be access request or a data packet.
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Patent Agency Ranking6.发明专利
公开(公告)号：JP2000209661A
公开(公告)日：2000-07-28
申请号：JP29174099
申请日：1999-10-14
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHUAH MOOI CHOO , YUE ON-CHING , ZHANG QINQING
Abstract: PROBLEM TO BE SOLVED: To assign a different chip delay to each priority class by selecting a back-off delay among different back-off delays relating respectively to a access priority class established in advance and transmitting a new access request signal through a selected logic access channel to a base station. SOLUTION: A remote terminal receives and stores an access priority system parameter that is multiple addressed to a base station. The terminal decides whether or not a new class request is required for reception of a packet to be sent and selects a logical access channel as required. The terminal selects random chip delay from a distribution on the basis of a required priority class or a priority class belonging to the terminal and transmits an access request according to the selected chip delay on a selected logical access channel. Then the terminal decides whether or not the access request is received by the base station.
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公开(公告)号：JP2000201383A
公开(公告)日：2000-07-18
申请号：JP29173899
申请日：1999-10-14
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHUAH MOOI CHOO , YUE ON-CHING , ZHANG QINQING
Abstract: PROBLEM TO BE SOLVED: To enable access priority control by assigning an access priority attribute having the priority higher than the priority concerning an access priority attribute, which is assigned to an access request signal, to a following access request signal when the access request signal is not received. SOLUTION: When a terminal judges an access request is not received by a base station, a function called no-tx is incremented just for '1'. Then, no-tx is compared with Ki (the maximum number of retransmission retry of class (i)). Then, the greater Ki (namely Ki>=Ki+1) is assigned to the class of higher priority and the retry of retransmission is performed often. When the maximum value of retransmission is not reached, a back-off process is executed. Then, a remote terminal waits the next usable access slot and repeats the process. Thus, when the priority of transmission is high, since the selection is performed from the bottom random chip delay distribution, the possibility to make the request successful is improved.
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公开(公告)号：DE69927227T2
公开(公告)日：2006-07-13
申请号：DE69927227
申请日：1999-10-05
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHUAH MOOI CHOO , YUE ON-CHING , ZHANG QINQING
Abstract: The present invention provides methods and apparatus for providing access priority in a MAC protocol of a communications system such as, for example, with respect to UMTS RACH. Particularly, the invention introduces several access priority methodologies including: (i) random chip delay access priority (RCDAP); (ii) random backoff based access priority (RBBAP); (iii) variable logical channel based access priority (VLCAP); (iv) UMTS-specific variable logical channel based access priority (VLCAP'); (v) probability based access priority (PBAP); and (vi) retransmission based access priority (REBAP). Each methodology associates some parameter or parameters to access priority classes in order to influence the likelihood of a remote terminal completing a successful access request to a base station.
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公开(公告)号：CA2281454C
公开(公告)日：2004-07-06
申请号：CA2281454
申请日：1999-09-08
Applicant: LUCENT TECHNOLOGIES INC
Inventor： ZHANG QINQING , YUE ON-CHING , CHUAH MOOI CHOO
Abstract: The present invention provides methods and apparatus for providing access priority in a MAC protocol of a communications system such as, for example, with respect to UMTS RACH. Particularly, the invention introduces several access priority methodologies including: (i) random chip delay access priority (RCDAP); (ii) random backoff based access priority (RBBAP); (iii) variable logical channel based access priority (VLCAP); (iv) UMTS-specific variable logical channel based access priority (VLCAP'); (v) probability based access priority (PBAP); and (vi) retransmission based access priority (REBAP). Each methodology associates some parameter or parameter's to access priority classes in order to influence the likelihood of a remote terminal completing a successful access request to a base station.
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公开(公告)号：CA2287613A1
公开(公告)日：2000-06-07
申请号：CA2287613
申请日：1999-10-26
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BUDKA KENNETH CARL , YUE ON-CHING , CHUAH MOOI CHOO
Abstract: A route optimization technique in a GPRS network includes establishing a gateway GPRS support node in a visiting public land mobile network in which a roaming mobile station is currently located. Specifically, a tunnel is formed between the gateway GPRS support node and a serving GPRS support node to which the mobile station is in direct communication over a radio link. In this manner, external corresponding hosts may route packets to the gateway GPRS support node, rather than the GPRS support node in the mobile station's home public mobile network, as is done in conventional GPRS networks. Advantageously, a shorter path is established for transfer of packets between a mobile station and a corresponding host. A similar route optimization technique is provided in a CDPD network, wherein a home mobile dataintermediate system node (local HMD-IS) in the foreign (visiting) network serves as a gateway node to the roaming mobile-end system.
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