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公开(公告)号：JP2000059850A
公开(公告)日：2000-02-25
申请号：JP20518399
申请日：1999-07-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KUMAR SARATH , NANDA SANJIV , VITEBSKY STANLEY
IPC: H04B1/707 , H04L12/56 , H04W28/04 , H04W28/20 , H04W72/04 , H04W74/00 , H04W74/04 , H04W84/04 , H04Q7/36 , H04Q7/38
Abstract: PROBLEM TO BE SOLVED: To provide a method and its system that assign impartially and efficiently an additional band in a cellular communication system that supports transmission/reception of a data burst with a mobile body. SOLUTION: An initial request relating to assignment of an additional band and a consecutive request relating to reassignment of the additional band to a burst while it is continuing are received and whether the initial request and the consecutive request are accepted or rejected is decided. In the case that the requests are rejected, an instruction to send a retrial request is given after a back-off time. Furthermore, a retrial request relating to the assignment of the additional band after a preceding request is rejected is received and whether the retrial request is accepted or rejected is decided. In the case that the retrial request is rejected, an instruction to send the retrial request is given after the back-off time.
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公开(公告)号：AT325515T
公开(公告)日：2006-06-15
申请号：AT99305506
申请日：1999-07-12
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KUMAR SARATH , NANDA SANJIV , VITEBSKY STANLEY
IPC: H04B1/707 , H04L12/56 , H04W28/04 , H04W28/20 , H04W72/04 , H04W74/00 , H04W74/04 , H04W84/04 , H04Q7/38
Abstract: Bursts of additional bandwidth (e.g., one or more supplemental channels or a channel having variable bandwidth) is assigned to users (e.g., high-speed data users) in a cellular telecommunication system. A request for assignment of additional bandwidth may be an initial request, a continuation request for an on-going burst, or a retry requests after a previously rejected request. In any case, it is determined whether to grant or reject the request. If the request is rejected, instructions are given to submit a retry request after a specified back-off time. The present invention may be implemented using either an asynchronous approach or a synchronous approach. According to the asynchronous approach, all requests are handled asynchronously. According to the synchronous approach, initial requests are handled asynchronously, but continuation requests and retry requests are handled synchronously at epoch times that coincide with specific time slots.
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公开(公告)号：DE60109717D1
公开(公告)日：2005-05-04
申请号：DE60109717
申请日：2001-06-11
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BALOGH DAN ANTHONY , BURGESS JOHN K , KIANG T ROGER , VITEBSKY STANLEY
Abstract: Disclosed is a method for utilizing SCH resources more efficiently for supplemental channels (SCH) by minimizing gaps between data bursts due to overhead delays. Such gaps are minimized using a supplemental channel sharing algorithm to prospectively assign SCH resources supporting existing SCHs and to schedule future issuance of data notify requests DNRs such that currently unavailable SCH resources may be prospectively assigned based on states of the SCH resources, wherein an existing SCH is a SCH over which a data burst is currently being transmitted. For this purpose a data burst is followed by a preferred used assignment window (PUA), indicating the current user, a waiting user assignment window (WUA) and an expired reassignment window (ERA).
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公开(公告)号：DE60104322D1
公开(公告)日：2004-08-19
申请号：DE60104322
申请日：2001-03-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GOPALAKRISHNAN NANDU , JOSHI NIRANJAN SUDHIR , KADABA SRINIVAS R , KOGIANTIS ACHILLES GEORGE , RUDRAPATNA ASHOK N , SUNAY MEHMET OGUZ , SUNDARAM GANAPATHY SUBRAMANIAN , VITEBSKY STANLEY
Abstract: Disclosed is a method of integrating voice and data services onto a same frequency channel using available transmit power information to determine data rates, wherein the available transmit power information indicates an amount of transmit power available for future data transmissions over one or more data channels. In a "distributed" embodiment, a transmitter or base station transmits, via a forward link, an available power message to a receiver or mobile-telephone indicating an amount of available transmit power at some future time t+z. The mobile-telephone performs signal-to-interference measurements corresponding to the received forward link and received interference, and uses such signal-to-interference measurements and the available power message to determine a data rate that can be supported by the mobile-telephone. Preferably, the determined data rate corresponds to a maximum data rate at which a minimum level of quality of service can be achieved at the mobile-telephone. In a "centralized" embodiment, the mobile-telephone transmits the signal-to-interference measurements to the base station, and the base station determines the data rate based on the available transmit power at future time t+z.
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公开(公告)号：DE60101769D1
公开(公告)日：2004-02-19
申请号：DE60101769
申请日：2001-03-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GOPALAKRISHNAN NANDU , JOSHI NIRANJAN SUDHIR , KADABA SRINIVAS , KOGIANTIS ACHILLES GEORGE , RUDRAPATNA ASHOK N , SUNAY MEHMET OGUZ , SUNDARAM GANAPATHY SUBRAMANIAN , VITEBSKY STANLEY
Abstract: Disclosed is a method of integrating voice and data services onto a same frequency channel using available transmit power information to determine data rates, wherein the available transmit power information indicates an amount of transmit power available for future data transmissions over one or more data channels. In a "distributed" embodiment, a transmitter or base station transmits, via a forward link, an available power message to a receiver or mobile-telephone indicating an amount of available transmit power at some future time t+z. The mobile-telephone performs signal-to-interference measurements corresponding to the received forward link and received interference, and uses such signal-to-interference measurements and the available power message to determine a data rate that can be supported by the mobile-telephone. Preferably, the determined data rate corresponds to a maximum data rate at which a minimum level of quality of service can be achieved at the mobile-telephone. In a "centralized" embodiment, the mobile-telephone transmits the signal-to-interference measurements to the base station, and the base station determines the data rate based on the available transmit power at future time t+z.
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Patent Agency Ranking
公开(公告)号：CA2361934A1
公开(公告)日：2002-06-01
申请号：CA2361934
申请日：2001-11-13
Applicant: LUCENT TECHNOLOGIES INC
Inventor： VITEBSKY STANLEY , KIANG T ROGER , BURGESS JOHN K , BALOGH DAN ANTHONY
Abstract: Disclosed is a method for utilizing SCH resources more efficiently for supplemental channels (SCH) by minimizing gaps between data bursts due to overhead delays. Such gaps are minimized using a supplemental channel sharing algorit hm to prospectively assign SCH resources supporting existing SCHs and to schedule future issuance of DNRs such that currently unavailable SCH resources may be prospectively assigned based on states of the SCH resources, wherein an existing SCH is a SCH over which a data burst is currently being transmitted.
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公开(公告)号：DE60120331T2
公开(公告)日：2007-05-24
申请号：DE60120331
申请日：2001-06-18
Applicant: LUCENT TECHNOLOGIES INC
Inventor： CHENG TERRY SI-FONG , JIANG FRANCES , VITEBSKY STANLEY
Abstract: A method for determining the reverse link data Rate Limit for mobile stations active on the reverse link of a High Data Rate system is disclosed. In the ideal case, the Rate Limit is based on only the number of mobile stations located in a common sector that are actually active on the reverse link. Currently, the Rate Limit is determined from the total number of mobile stations in a common sector where the total includes mobiles that are transmitting and receiving. Thus, the current method includes mobile stations that are active on the forward link and may not be active on the reverse link. In this invention, a more optimum method of estimating the reverse link loading is obtained from calculations which includes only the mobile stations which are active on the reverse link. An estimate of the reverse link loading of the mobile stations in a common cell is obtained by adding together the data rates of the data sent from each mobile in a common sector during a common frame. This aggregate rate of data during the frame is filtered to minimize irregularities by using the moving average of an infinite impulse response filter and then normalized. The normalized result is a percentage of the maximum achievable aggregate reverse link rate. The final result is compared with a set of threshold values to obtain the maximum Rate Limit that is then set for each mobile station.
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公开(公告)号：DE60112034T2
公开(公告)日：2006-04-20
申请号：DE60112034
申请日：2001-08-14
Applicant: LUCENT TECHNOLOGIES INC
Inventor： NEWBURY MARK E , VITEBSKY STANLEY
Abstract: To take advantage of hierarchical cell layers, an inter-layer handoff system determines a cell layer for servicing a wireless unit at least as a function of the duration that the wireless unit is in a cell or set of cells of a cell layer. For example, as a function of the duration that the wireless unit is in the cell or set of cells for a first cell layer, a determination is made as to whether the wireless unit should be serviced by a cell or set of cells of a second cell layer. As such, wireless units moving at higher speeds which will be handed off frequently in a smaller cell layer(s) are serviced by a larger cell layer(s). Thus, the hierarchical cellular communications system can have the increased capacity provided by the smaller cell layer(s) while reducing the number of handoffs which would occur of the faster moving wireless units in the smaller cell layer(s). In certain embodiments, a timer starts when the wireless unit connects to a cell in a first layer, and the timer stops when the wireless unit disconnects from the cell. Depending on the amount of time that the wireless unit is in the cell of the first layer or a function thereof, the inter-layer handoff system determines whether the wireless unit should be serviced by another cell layer. For example, the network can compare a timer value(s) or a function thereof with threshold value(s) which are chosen such that the frequency of handoffs are below a certain level at each cell layer.
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公开(公告)号：CA2357092C
公开(公告)日：2005-03-22
申请号：CA2357092
申请日：2001-08-30
Applicant: LUCENT TECHNOLOGIES INC
Inventor： SUNAY MEHMET OGUZ , RUDRAPATNA ASHOK N , GOPALAKRISHNAN NANDU , KOGIANTIS ACHILLES GEORGE , VITEBSKY STANLEY , JOSHI NIRANJAN SUDHIR , SUNDARAM GANAPATHY SUBRAMANIAN , KADABA SRINIVAS R
IPC: H04B7/005 , H04B7/26 , H04W52/22 , H04W52/24 , H04W52/26 , H04W52/34 , H04W52/54 , H04L12/26 , H04B17/00 , H04L1/20 , H04Q7/36
Abstract: Disclosed is a method of integrating voice and data services onto a sam e frequency channel using available transmit power information to determine da ta rates, wherein the available transmit power information indicates an amount of transmit pow er available for future data transmissions over one or more data channels. In a "distributed" embodiment, a transmitter or base station transmits. via a forward link, an available powe r message to a receiver or mobile-telephone indicating an amount of available transmit power at some future time t+z. The mobile-telephone performs signal-to-interference measurements corresponding to the received forward link and received interference, and uses such signal-to- interference measurements and the available power message to determine a data rate that c an be supported by the mobile-telephone. Preferably, the determined data rate corresponds to a maximum data rate at which a minimum level of quality of service can be achieved at the mobile- telephone. In a "centralized" embodiment, the mobile-telephone transmits the signal-to- interference measurements to the base station, and the base station determines the data rate based on the available transmit power at future time t+z.
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公开(公告)号：DE60101769T2
公开(公告)日：2004-11-04
申请号：DE60101769
申请日：2001-03-19
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GOPALAKRISHNAN NANDU , JOSHI NIRANJAN SUDHIR , KADABA SRINIVAS , KOGIANTIS ACHILLES GEORGE , RUDRAPATNA ASHOK N , SUNAY MEHMET OGUZ , SUNDARAM GANAPATHY SUBRAMANIAN , VITEBSKY STANLEY
Abstract: Disclosed is a method of integrating voice and data services onto a same frequency channel using available transmit power information to determine data rates, wherein the available transmit power information indicates an amount of transmit power available for future data transmissions over one or more data channels. In a "distributed" embodiment, a transmitter or base station transmits, via a forward link, an available power message to a receiver or mobile-telephone indicating an amount of available transmit power at some future time t+z. The mobile-telephone performs signal-to-interference measurements corresponding to the received forward link and received interference, and uses such signal-to-interference measurements and the available power message to determine a data rate that can be supported by the mobile-telephone. Preferably, the determined data rate corresponds to a maximum data rate at which a minimum level of quality of service can be achieved at the mobile-telephone. In a "centralized" embodiment, the mobile-telephone transmits the signal-to-interference measurements to the base station, and the base station determines the data rate based on the available transmit power at future time t+z.
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