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1.发明专利
公开(公告)号：JP2001111479A
公开(公告)日：2001-04-20
申请号：JP2000255257
申请日：2000-08-25
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KAMEL RAAFAT EDWARD , KUO WEN-YI , MEYERS MARTIN HOWARD , WEAVER CARL FRANCIS , WU XIAO CHENG
Abstract: PROBLEM TO BE SOLVED: To reinforce a power control ability by deciding a vocoding rate before receiving the sequence of a downward frame or an interleaving frame. SOLUTION: In a base station 14, one frame is organized, which includes an information bit in the vocoding rate as a channel bit in one channel rate, in order to transmit a downward signal on a traffic channel and at least one rate indicating bit which expresses the vocoding rate is arranged in the head part of the frame. In a mobile station 16, downward transmission power is calculated by taking the vocoding rate expressed by at least one rate indicating bit in consideration and the vocoding rate is decided by decoding the head part of the frame so that power control is executed in a period being shorter than one frame from the repetition of the first frame.
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公开(公告)号：JP2001078269A
公开(公告)日：2001-03-23
申请号：JP2000214300
申请日：2000-07-14
Applicant: LUCENT TECHNOLOGIES INC
Inventor： EIBLING EDWARD ELLIS , GANDHI ASIF DAWOODI , KUO WEN-YI , THOMAS MATHEW , WEAVER CARL FRANCIS
Abstract: PROBLEM TO BE SOLVED: To provide a call blockade start method in call reception control in a radio system. SOLUTION: In a method for starting call blockade in response to a pilot fraction as a call quality measurement value in a base station 200 in a radio system, a sampling square integral circuit 202 obtains a power level based on a current time length, a sampling square integral circuit 204 obtains a power level of a pilot based on the current time length and the both the power levels are fed to a 1st averaging element 210. The 1st averaging element 210 decides a mean pilot fraction based on the current time length from both the power levels. The comparator 220 compares the mean pilot fraction and a pilot fraction blockage threshold value and a controller 240 uses a call reception program to start call blockade in response to the case that the mean pilot fraction is smaller than the pilot fracture blockage threshold value. A frame error rate may be used in place of the pilot fraction for a call quality measurement value.
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公开(公告)号：JP2000316192A
公开(公告)日：2000-11-14
申请号：JP2000104828
申请日：2000-04-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHEN TSAO-TSEN , KUO WEN-YI , MEYERS MARTIN HOWARD
Abstract: PROBLEM TO BE SOLVED: To improve a burst control method of a CDMA system. SOLUTION: An MS(mobile station) detects relative signal strength received from a BTS(base transceiver station) in an active set (the set of the BTS which can be connected with the MS). A limited active set (sub-set) constituted of the BTS which can service the MS in the active set is prepared. Then, the geometry of each sub-set is decided, and power adjustment (the difference of power for bits) is calculated for each sub-set by using the geometry. Then, an available data rate is decided for each sub-set by using the power adjustment and available power of the BTS in the sub-set. The minimum value of the data rates of all the BTS in the sub-set is selected as the available data rate of the subset. The maximum value of the available data rates of all the sub-sets is selected as the data rate of the MS.
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公开(公告)号：JP2000333265A
公开(公告)日：2000-11-30
申请号：JP2000108520
申请日：2000-04-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KUO WEN-YI , LU MING
Abstract: PROBLEM TO BE SOLVED: To inhibit jamming in an opposite direction by determining a data rate that can be supplied to each base station in an evaluation set and selecting the data rate. SOLUTION: Relative signal intensity that a mobile station(MS) receives from a nearby base terminal station(BTS) is detected. The loss of a communication path is evaluated by monitoring and evaluating the influence of jamming in an opposite direction in the BTS. A BTS which does not exist in the active group of BTSs communicating with a specified MS is combined with the active group and an evaluation set, namely, the super set of the BTS, which is called as an e-set, is generated. A data rate that can be supplied is determined for each BTS in the e-set communicating with an MS. It is determined by selecting the lowest data rate that BTS in the e-set can supply with respect to the transmission of data between the BTS in the e-set and the MS. The transmission of an opposite direction link is of especially high power, and high data rate transmission is stopped or the reduction of power is instructed.
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公开(公告)号：JP2000333241A
公开(公告)日：2000-11-30
申请号：JP2000108518
申请日：2000-04-10
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHEN TSAO-TSEN , KUO WEN-YI
Abstract: PROBLEM TO BE SOLVED: To improve the performance and the throughput of a wireless communication system by allocating a burst transmission period to transmission path between a base station and a mobile station in accordance with the function of phasing fluctuation. SOLUTION: The fluctuation of the phasing of a data channel serviced to a user is determined in a step 101. A short burst transmission period is allocated to the user having the high fluctuation of phasing (step 103) and the long burst transmission period is allocated to the user with the small fluctuation of phasing (step 104). In allocating the transmission period of burst, a system decides the level of the moving degree of the user in a step 102 in addition to the consideration of phasing fluctuation. When the mobile station is decided to move with the high moving degree, the short burst transmission period is allocated to communication with the mobile station in the step 103. The long burst transmission period is allocated to the mobile station with the low moving degree in the step 104.
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Patent Agency Ranking
公开(公告)号：JP2000324178A
公开(公告)日：2000-11-24
申请号：JP2000111054
申请日：2000-04-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KIANG ROGER T , KUO WEN-YI , MEYERS MARTIN HOWARD
IPC: H04L29/08 , H04B7/26 , H04L12/28 , H04L12/56 , H04W28/04 , H04W28/06 , H04W28/14 , H04W88/18 , H04L12/66 , H04Q7/38
Abstract: PROBLEM TO BE SOLVED: To improve data throughput to a communication link set between a data node and a mobile user by interrupting the data packets sent from a data source, buffering the data packets before they are sent to a desired data link and receiving these packets. SOLUTION: An IWFTCP proxy receives a packet from a data server 50 before it transfers the packet to an MS 10 as a new TCP origination and also buffers temporarily the received packet. A TCP function particularly confirms whether the packet that is received from the server 50 and addressed to a specific user (e.g. the MS 10) is correctly received. If the packet is correctly received, the IWFTCP proxy instantaneously sends the ACK back to the server 50 for the received packet. Thereby these packets arrive at each desired destination from the viewpoint of the server 50 and the ACK is quickly returned. Thus, a data rate can be scaled up.
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公开(公告)号：JP2000224106A
公开(公告)日：2000-08-11
申请号：JP2000019660
申请日：2000-01-28
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KOO YUEN-YIN L , KUO WEN-YI , MEYERS MARTIN HOWARD , WEAVER CARL FRANCIS
IPC: H04B1/7075 , H04B1/7097 , H04B7/005 , H04B7/26 , H04J13/00
Abstract: PROBLEM TO BE SOLVED: To correctly calculate transmission power of a mobile station by accurately comprehending path loss in a code division multiple access(CDMA) communication system. SOLUTION: A mobile station recognizes a path loss with a base station by receiving a pilot signal to adjust transmission power of an uplink. The communication system decides an interference correction term for each access probe of the base station by taking detection of an inactive set pilot signal, a thermal nose or a non-CDMA interference into account for this adjustment and executes open loop power control on the basis thereof.
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公开(公告)号：JP2000102068A
公开(公告)日：2000-04-07
申请号：JP24424099
申请日：1999-08-31
Applicant: LUCENT TECHNOLOGIES INC
Inventor： JIANG FRANCES , KUO WEN-YI
IPC: H04B7/155 , H04B7/26 , H04J3/06 , H04W16/26 , H04W88/08 , H04Q7/36 , H04Q7/22 , H04Q7/24 , H04Q7/26 , H04Q7/30
Abstract: PROBLEM TO BE SOLVED: To extend a cell size or an access range by a concentric base station that has relating micro cells and macro cells so as to receive a signal sent by a mobile telephone set in a corresponding cell within a limit of a retrieval window relating to a timing protocol. SOLUTION: A timing schedule 50 includes a series of frames 52-1-52-n. Each frame shares a time interval (f) and a frame border indicates a start of each frame at a time Fn in matching with a GPS time obtained by using a receiver. According to this corrected timing protocol, a base station retrieves a mobile telephone signal within a retrieval window Wn where transmission of a base station signal is started at a time Fn-q and retrieval is finished between a time Fn and a time Fn+p. Simultaneously, a mobile telephone set starts transmission of a signal at a point of time that is about a multiple of (x) of the frame time interval after the mobile telephone set starts reception of the base station signal.
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公开(公告)号：JP2001148659A
公开(公告)日：2001-05-29
申请号：JP2000277408
申请日：2000-09-13
Applicant: LUCENT TECHNOLOGIES INC
Inventor： EIBLING EDWARD ELLIS , KAMEL RAAFAT EDWARD , KUO WEN-YI , THOMAS MATHEW , WEAVER CARL FRANCIS
Abstract: PROBLEM TO BE SOLVED: To solve the problem of the deterioration of communication quality accompanying traffic increase. SOLUTION: Other output level measured values such as the output level of the set of signals are used instead of the pilot ratio of a forward direction link or by being added to it so as to adjust the output level of the set of the signals. The output level of the set of the signals is changed by a method including scaling by a scaling factor or the increase of the output level by a fixed or variable amount. The output level measured value of the set of the signals is obtained during a present period and the scaling factor to be used in the next period is decided by using the output level measured value. The scaling factor is obtained from a lookup table based on the output level measured value. In the case that a cell provided with a base station 200 is provided with some sectors, the output level of the set of the signals in the sector is adjusted when the output level measured value in the sector indicates that the output level is to be adjusted.
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公开(公告)号：JP2000341338A
公开(公告)日：2000-12-08
申请号：JP2000104829
申请日：2000-04-06
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CLOUTIER JOSEPH E , KUO WEN-YI , RAMAKRISHNA SUDHIR
Abstract: PROBLEM TO BE SOLVED: To improve the channel use rate in a wireless communication system by increasing the burst period so that additional data which become usable in the first burst transmission allocation are transmitted and adapting the burst period to an input data message. SOLUTION: A mobile communication exchange center 100, base station controllers 102, base transceiver stations 104, and remote users which operate respective mobile stations 106 are included. A wireless communication system like this allocates a burst period which is long enough to transmit data currently usable for transmission. The allocation of this long burst period accepts the transmission of additional message data arriving before the data burst transmission is completed. Message data arriving before a data burst ends are added to data allocated before the burst and the period of the burst is extended exceeding the initially allocated period when necessary.
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