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    Power control for a wireless communication system utilizing orthogonal multiplexing
    21.
    发明专利
    Power control for a wireless communication system utilizing orthogonal multiplexing 未知

    公开(公告)号：AU2011265406A1

    公开(公告)日：2012-01-19

    申请号：AU2011265406

    申请日：2011-12-21

    Applicant: QUALCOMM INC

    Inventor： SUTIVONG ARAK ,  JULIAN DAVID JONATHAN ,  AVNEESH AGRAWAL

    IPC: H04B7/005

    Abstract: Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. The amount of inter sector interference that a terminal may cause may be roughly estimated based on the total interference observed by each neighbor base station, channel gains for the serving and neighbor base stations, and the current transmit power level. The transmit power may be decreased if high interference is observed by a neighbor base station and increased otherwise. The transmit power may be adjusted by a larger amount and/or more frequently if the terminal is located closer to the neighbor base station observing high interference and/or if the current transmit power level is higher, and vice versa. The intra-sector interference is maintained within an acceptable level by limiting a received SNR for the terminal to be within a range of allowable SNRs. Start 300 Process the OSI bit of the strongest neighbor base station '' r322 A332 Determine probability for. Determine probability for decreasing transmit power, increasing transmit power, Prdn(n), based on transmit Prop(n), based on transmit power delta and channel power delta and channel gain ratio for the strongest gain ratio for the strongest neighbor base station neighbor base station 324 t , 134 ndomly select a value x Randomly select a value x between 0.0 and 1.0 between 0.0 and 1.0 x

    Reverse link traffic power control for LBC FDD
    22.
    发明专利
    Reverse link traffic power control for LBC FDD 未知

    公开(公告)号：AU2011203194A1

    公开(公告)日：2011-07-21

    申请号：AU2011203194

    申请日：2011-06-30

    Applicant: QUALCOMM INC

    Inventor： AVNEESH AGRAWAL ,  ALEXEI GOROKHOV ,  BORRAN MOHAMMAD J

    IPC: H04B7/005

    Abstract: Systems and methodologies are described that facilitate controlling reverse link power on a traffic channel. Assignments for reverse link communication can be yielded. Interference from mobile devices in 5 neighboring sectors can be monitored and other sector interference (OSI) indications can be broadcasted. The OSI indications can be obtained by mobile devices to alter delta values employed for delta-based power control. Further, a maximum allowable amount of reduction of a delta value can be allocated per QoS class. Moreover, mobile devices can provide in-band and out-of-band feedback, which can be leveraged for future assignments. ASSIGN BOUNDS FOR ADJUSTMENT 702 OF A DELTA VALUE BASED UPON QoS CLASS TRANSMIT A REVERSE LINK 704 ASSIGNMENT TO AT LEAST ONE SERVED MOBILE DEVICE MONITOR REVERSE LINK INTERFERENCE FROM MOBILE 706 DEVICES IN NEIGHBORING BROADCAST AN OSI INDICATION TO ADJUST REVERSE LINK POWER 708 LEVELS OF THE MOBILE DEVICES IN NEIGHBORING SECTORS

    Robust erasure detection and erasure-rate-based closed loop power control
    23.
    发明专利
    Robust erasure detection and erasure-rate-based closed loop power control 未知

    公开(公告)号：AU2005262561C1

    公开(公告)日：2010-04-29

    申请号：AU2005262561

    申请日：2005-06-07

    Applicant: QUALCOMM INC

    Inventor： JULIAN DAVID JONATHAN ,  AVNEESH AGRAWAL ,  SUTIVONG ARAK

    IPC: H04L1/00 ,  H04B7/005 ,  H04L1/20

    Abstract: Techniques for performing erasure detection and power control for a transmission without error detection coding are described. For erasure detection, a transmitter transmits codewords via a wireless channel. A receiver computes a metric for each received codeword, compares the computed metric against an erasure threshold, and declares the received codeword to be "erased" or "non-erased". The receiver dynamically adjusts the erasure threshold based on received known codewords to achieve a target level of performance. For power control, an inner loop adjusts the transmit power to maintain a received signal quality (SNR) at a target SNR. An outer loop adjusts the target SNR based on the status of received codewords (erased or non-erased) to achieve a target erasure rate. A third loop adjusts the erasure threshold based on the status of received known codewords ("good", "bad", or erased) to achieve a target conditional error rate.

    Power control for a wireless communication system utilizing orthogonal multiplexing
    24.
    发明专利
    Power control for a wireless communication system utilizing orthogonal multiplexing 未知

    公开(公告)号：AU2005262562C1

    公开(公告)日：2009-11-26

    申请号：AU2005262562

    申请日：2005-06-07

    Applicant: QUALCOMM INC

    Inventor： SUTIVONG ARAK ,  JULIAN DAVID JONATHAN ,  AVNEESH AGRAWAL

    IPC: H04B7/005 ,  H04L1/00 ,  H04L1/20 ,  H04W24/00 ,  H04W28/04 ,  H04W52/24 ,  H04W52/28 ,  H04W52/36 ,  H04W52/60 ,  H04W88/08

    Abstract: Techniques for adjusting transmit power to mitigate both intra-sector interference to a serving base station and inter-sector interference to neighbor base stations are described. The amount of inter-sector interference that a terminal may cause may be roughly estimated based on the total interference observed by each neighbor base station, channel gains for the serving and neighbor base stations, and the current transmit power level. The transmit power may be decreased if high interference is observed by a neighbor base station and increased otherwise. The transmit power may be adjusted by a larger amount and/or more frequently if the terminal is located closer to the neighbor base station observing high interference and/or if the current transmit power level is higher, and vice versa. The intra-sector interference is maintained within an acceptable level by limiting a received SNR for the terminal to be within a range of allowable SNRs.

    RESTRICTIVE REUSE FOR A WIRELESS COMMUNICATION SYSTEM
    26.
    发明专利
    RESTRICTIVE REUSE FOR A WIRELESS COMMUNICATION SYSTEM 未知

    公开(公告)号：HK1098906A1

    公开(公告)日：2007-07-27

    申请号：HK07103979

    申请日：2007-04-17

    Applicant: QUALCOMM INC

    Inventor： TINGFANG JI ,  AVNEESH AGRAWAL ,  EDWARD H TEAGUE

    IPC: H04W16/10 ,  H04W16/02 ,  H04W16/12 ,  H04W72/08

    Abstract: A terminal is allocated system resources not used by strong interference entities, if any, identified for the terminal, and wherein each strong interference entity is an entity for which mitigation of interference with the terminal is sought. For restrictive reuse, each cell (or each sector) is assigned (1) a set of usable subbands that may be allocated to users in the cell and (2) a set of forbidden subbands that is not used. The usable and forbidden sets for each cell are orthogonal to one other. The usable set for each cell also overlaps the forbidden set for each neighboring cell. A user u in a cell x may be allocated subbands in the usable set for that cell. If user u observes/causes high level of interference from/to a neighboring cell y, then user u may be allocated subbands from a "restricted" set containing subbands included in both the usable set for cell x and the forbidden set for cell y. User u would then observe/cause no interference from/to cell y. The subband restriction may be extended to avoid interference from multiple neighboring cells.

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