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公开(公告)号：BR0003572A
公开(公告)日：2001-01-09
申请号：BR0003572
申请日：2000-06-07
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KUMAR SARATH , NANDA SANJIV , RUBIN HARVEY , VITEBSKY STANLEY
Abstract: A back haul architecture enables efficient primary transfer (i.e., transfer of the designation of primary base station from one base station to another). A frame selection/distribution (FSD) function queues packets of forward-link data -- to which sequence numbers have been assigned --for packet-mode transmission over the back haul only to one base station -- the current primary base station -- where the packets are again queued for over-the-air transmission to the mobile unit. If and when it becomes appropriate to transfer the designation of primary base station to another base station, there may still be packets of data queued at the old primary base station awaiting transmission to the mobile unit. The old primary base station sends a message to the new primary base station indicating a particular sequence number that identifies the remaining packets of forward-link data queued at the old primary base station. The new primary base station then sends a message to the FSD function requesting transmission of those packets of forward-link data corresponding to the particular sequence number. The FSD function then transmits those requested packets of forward-link data to the new primary base station, which queues the requested packets for over-the-air transmission to the mobile unit. In this way, transmission of all of the forward-link data to the mobile unit is enabled without having to transmit the remaining queued packets of forward-link data from the old primary base station to the new primary base station over the back haul, thereby providing an efficient mechanism for primary transfer in wireless communications systems that support forward-link data transmissions only in simplex mode.
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32.发明专利
公开(公告)号：CA2310486A1
公开(公告)日：2000-12-11
申请号：CA2310486
申请日：2000-06-01
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KUMAR SARATH , VITEBSKY STANLEY , NANDA SANJIV , RUBIN HARVEY
Abstract: A back haul architecture enables efficient primary transfer (i.e., transfer of the designation of primary base station from one base station to another). A frame selection/distribution (FSD) function queues packets of forward-link data -- to which sequence numbers have been assigned --for packet-mode transmission over the back haul only to one base station -- the current primary base station -- where the packets are again queued for over-the-air transmission to the mobile unit. If and when it becomes appropriate to transfer the designation of primary base station to another base station, there may still be packets of data queued at the old primary base station awaiting transmission to the mobile unit. The old primary base station sends a message to the new primary base station indicating a particular sequence number that identifies the remaining packets of forward-link data queued at the old primary base station. The new primary base station then sends a message to the FSD function requesting transmission of those packets of forward-link data corresponding to the particular sequence number. The FSD function then transmits those requested packets of forward-link data to the new primary base station, which queues the requested packets for over-the-air transmission to the mobile unit. In this way, transmission of all of the forward-link data to the mobile unit is enabled without having to transmit the remaining queued packets of forward-link data from the old primary base station to the new primary base station over the back haul, thereby providing an efficient mechanism for primary transfer in wireless communications systems that support forward-link data transmissions only in simplex mode.
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公开(公告)号：DE60109717T2
公开(公告)日：2006-02-02
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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34.发明专利
公开(公告)号：CA2310486C
公开(公告)日：2006-01-10
申请号：CA2310486
申请日：2000-06-01
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KUMAR SARATH , NANDA SANJIV , RUBIN HARVEY , VITEBSKY STANLEY
Abstract: A back haul architecture enables efficient primary transfer (i.e., transfer of the designation of primary base station from one base station to another). A frame selection/distribution (FSD) function queues packets of forward-link data -- to which sequence numbers ha ve been assigned -- for packet-mode transmission over the back haul only to one base station -- the current primary base station -- where the packets are again queued for over-the-air transmission to the mobile unit. If and when it becomes appropriate to transfer the designation of primary ba se station to another base station, there may still be packets of data queued at the old primary base station awaiting transmission to the mobile unit. The old primary base station sends a messag e to the new primary base station indicating a particular sequence number that identifies the remaining packets of forward-link data queued at the old primary base station. The new primary ba se station then sends a message to the FSD function requesting transmission of those packets of forward-link data corresponding to the particular sequence number. The FSD function then transmits those requested packets of forward-link data to the new primary base station, which queues t he requested packets for over-the-air transmission to the mobile unit. In this way, transmission of all of the forward-link data to the mobile unit is enabled without having to transmit the remaining queued packets of forward-link data from the old primary base station to the new primary base station over the back haul, thereby providing an efficient mechanism for primary transfer in wireless communications systems that support forward-link data transmissions only in simplex mode.
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公开(公告)号：DE60301035D1
公开(公告)日：2005-08-25
申请号：DE60301035
申请日：2003-05-22
Applicant: LUCENT TECHNOLOGIES INC
Inventor： BI QI , HUANG CHING YAO , CHEN PI-CHUN , LI PATRICK , VITEBSKY STANLEY
Abstract: In the method, scheduling of a plurality of users for receiving transmitted data is prioritized within a communications system. A next data transmission among the plurality of users is allocated based on the prioritized scheduling.
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Patent Agency Ranking
公开(公告)号：AT292360T
公开(公告)日：2005-04-15
申请号：AT01305079
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：DE60102786D1
公开(公告)日：2004-05-19
申请号：DE60102786
申请日：2001-08-14
Applicant: LUCENT TECHNOLOGIES INC
Inventor： KAMEL RAAFAT E , SALVARANI ALEXANDRO , THOMAS MATHEW , VITEBSKY STANLEY
Abstract: A method and apparatus estimate the initial power level and transmission rate of a burst on a secondary channel (182) when the secondary channel (182) is on fewer legs (132) of a handoff, such as a soft or softer handoff, than the primary channel (162, 164, 166). In accordance with the present invention, the initial power level of the burst transmitted over a current secondary channel (182) on a particular leg(s) is a function of a power level of a previous burst transmitted over a previous secondary channel on the identical leg(s) (132) as the current secondary channel (182). For example, the initial power level of the burst can be based on the power level at the end of the previous burst shortly prior to the termination of the previous burst, where the termination of the previous burst was within a predetermined time interval of the start of the burst. Optionally, the initial power level of a burst can also be additionally adjusted based on characteristics of the communication link of the primary channel (162), the previous secondary channel, and the current secondary channel (182). The transmission rate may then be adjusted based on the initial power level determined as described above to obtain a more efficient transmission rate.
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公开(公告)号：DE60102770D1
公开(公告)日：2004-05-19
申请号：DE60102770
申请日：2001-08-28
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GANDHI ASIF D , KAMEL RAAFAT E , KOSTIC ANDREW R , SALVARANI ALEXANDRO , THOMAS MATHEW , VITEBSKY STANLEY , WEAVER CARL FRANCIS
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公开(公告)号：BR0005605A
公开(公告)日：2001-06-12
申请号：BR0005605
申请日：2000-09-29
Applicant: LUCENT TECHNOLOGIES INC
Inventor： GANDHI ASIF DAWOODI , VITEBSKY STANLEY , IBANEZ MARC BENEDICT , SONG LEI , THOMAS MATHEW
Abstract: A system and a method for reverse link power control in a wireless communications network generates power adjust commands for mobiles being served by a network base station in a centralized manner by considering overall system performance when an increased interference condition is detected. In one implementation, a base station power control processor adopts a modified reverse inner loop power control (RILPC) and/or a reverse outer loop power control (ROLPC) algorithm when an increased interference condition is detected. According to the modified RILPC algorithm, a percentage of power-up adjust commands which would normally be generated when Eb/No measurements for served mobiles do not meet target Eb/No levels are converted to power down-adjust commands, thereby forcing some mobiles to reduce transmit power, at least temporarily, to constrain interference. When the increased interference condition persists, the percentage of power-up adjust commands which are converted to power-down commands may be changed. According to the modified ROLPC algorithm, the power control processor adjusts target Eb/No levels in a centralized manner based on an overall system state so that only a limited number of target Eb/No levels are allowed to increase when frame erasures occur. By preventing a percentage of target Eb/No level increases, at least temporarily, when frame erasures occur, a percentage of power up-adjust commands are avoided. Therefore, a similar effect to that achieved by the modified RILPC is achieved. In accordance with still a further implementation of the present invention, the modified RILPC algorithm may be used in combination with the modified ROLPC algorithm to provide greater resistance to increased interference conditions.
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公开(公告)号：CA2322236A1
公开(公告)日：2001-04-06
申请号：CA2322236
申请日：2000-10-03
Applicant: LUCENT TECHNOLOGIES INC
Inventor： THOMAS MATHEW , SONG LEI , IBANEZ MARC BENEDICT , GANDHI ASIF DAWOODI , VITEBSKY STANLEY
Abstract: A system and a method for reverse link power control in a wireless communications network generates power adjust commands for mobiles being served by a network base station in a centralized manner by considering overall system performance when an increased interference condition is detected. In one implementation, a base station power control processor adopts a modified reverse inner loop power control (RILPC) and/or a reverse outer loop power control (ROLPC) algorithm when an increased interference condition is detected. According to the modified RILPC algorithm, a percentage of power-up adjust commands which would normally be generated when E b/N o measurements for served mobiles do not meet target E b/N o levels are converted to power down-adjust commands, thereby forcing some mobiles to reduce transmit power, at least temporarily, to constrain interference. When the increased interference condition persists, the percentage of power-up adjust commands which are converted to power-down commands may be changed. According to the modified ROLPC algorithm, the power control processor adjusts target E b/N o levels in a centralized manner based on an overall system state so that only a limited number of target E b/N o levels are allowed to increase when frame erasures occur. By preventing a percentage of target E b/N o level increases, at least temporarily, when frame erasures occur, a percentage of power up-adjust commands are avoided. Therefore, a similar effect to that achieved by the modified RILPC is achieved. In accordance with still a further implementation of the present invention, the modified RILPC algorithm may be used in combination with the modified ROLPC algorithm to provide greater resistance to increased interference conditions.
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