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公开(公告)号:CA2693279C
公开(公告)日:2014-07-15
申请号:CA2693279
申请日:2008-08-08
Applicant: QUALCOMM INC
Inventor: YAVUZ MEHMET , BLACK PETER J , NANDA SANJIV
IPC: H04W52/04
Abstract: Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a minimum coupling loss from a transmitting node to a receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference. Transmit power may be defined based on channel quality. Transmit power may be defined based on a signal-to-noise ratio at an access terminal. The transmit power of neighboring access nodes also may be controlled by inter-access node signaling.
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公开(公告)号:UA102398C2
公开(公告)日:2013-07-10
申请号:UAA201100244
申请日:2009-06-09
Applicant: QUALCOMM INC
Inventor: JOU YU-CHEUN , BLACK PETER J , ATTAR RASHID AHMED AKBAR
IPC: H04L1/00
Abstract: Методыповышенияпропускнойспособностив системебеспроводнойсвязи. Согласноаспекту, предусмотреносистематическоеугнетениепередачиили "обнуление" кадровминимальнойскорости, передаваемыхв системесвязи. Виллюстративномвариантеосуществления, кадрыскоростиоднавосьмаяв системеречевойсвязи cdma2000 систематическизаменяютсякадраминулевойскорости, несутнольбитовграфика. Однако, предполагаетсяпередачаопределенныхкадров, указанныхкак "критические", например, вокодером. Приемникобнаруживаетприсутствиепередачнулевойскоростиилиненулевойскоростии, соответственно, обрабатываетпринятыекадры, включаяобновленияуправлениямощностьюповнешнемуциклутольков ответнакадрыненулевойскорости. Предусмотреныдополнительныеметодыизмененияшаблонастробируемойпилотнойпередачи, помогающиеприемникуобнаруживатькадрынулевойскорости. Согласнодругомуаспекту, предусмотренораннееокончаниепередачисигналапобеспроводнойлиниисвязи. Виллюстративномвариантеосуществлениябазоваястанция (BS) передаетгруппыуправлениямощностью (PCG) длякадрапопрямойлиниисвязи (FL) намобильнуюстанцию(MS), покабезошибочныйприемкадранебудетквитирован MS пообратнойлиниисвязи (RL), возможно, кприемувсех PCG кадрапо FL. ВозможныеспособысигнализацииАСК, определенныедляканалов, связанныхс системойбеспроводнойсвязи cdma2000. Вдругомиллюстративномвариантеосуществлениятакжепредусмотреныметодыраннегоокончанияобратнойлиниисвязи.
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公开(公告)号:SG187390A1
公开(公告)日:2013-02-28
申请号:SG2012094256
申请日:2008-09-19
Applicant: QUALCOMM INC
Inventor: YAVUZ MEHMET , BLACK PETER J , NANDA SANJIV
Abstract: INTERFERENCE MANAGEMENT UTILIZING POWER AND ATTENUATION PROFILESInterference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. Figure 5
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公开(公告)号:UA100988C2
公开(公告)日:2013-02-25
申请号:UAA201002643
申请日:2008-08-08
Applicant: QUALCOMM INC
Inventor: YAVUZ MEHMET , BLACK PETER J , NANDA SANJIV
IPC: H04W52/00
Abstract: Мощностьпередачи (например, максимальнаямощностьпередачи) можетзадаватьсянаосновемаксимальнойинтенсивностисигнала, допустимойдляприемника, иминимальныхпотерьиз-запереходногозатуханияотпередающегоузлак приемнику. Мощностьпередачиможетзадаватьсядляузладоступа (например, фемтовузла) так, чтоограничиваетсясоответствующийперерыврадиосвязи, которыйсоздаетсяв соте (например, макросоте), новсежеобеспечиваядопустимыйуровеньпокрытиядлятерминаловдоступа, ассоциированныхс узломдоступа. Узелдоступаможетавтономнорегулироватьсвоюмощностьпередачи, наосновеизмеренийканалаи заданномпропускев покрытии, чтобыуменьшитьпомехи. Мощно
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公开(公告)号:SG186680A1
公开(公告)日:2013-01-30
申请号:SG2012094280
申请日:2008-09-19
Applicant: QUALCOMM INC
Inventor: YAVUZ MEHMET , BLACK PETER J , NANDA SANJIV
Abstract: INTERFERENCE MANAGEMENT EMPLOYING FRACTIONAL FREQUENCY REUSEInterference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. Figure 12
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公开(公告)号:UA100566C2
公开(公告)日:2013-01-10
申请号:UAA201100225
申请日:2009-06-09
Applicant: QUALCOMM INC
Inventor: JOU YU-CHEUN , BLACK PETER J , ATTAR RASHID AHMED AKBAR
IPC: H04L1/00
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公开(公告)号:CA2435440C
公开(公告)日:2012-12-18
申请号:CA2435440
申请日:2002-01-17
Applicant: QUALCOMM INC
Inventor: BLACK PETER J , SINDHUSHAYANA NAGABHUSHANA T
Abstract: Techniques for deriving sample timing for multiple signal instances received on multiple antennas for a given propagation path. In one scheme, a DLL is maintained for each path, and each DLL tracks the timing of the best signal instance for the assigned path. In another scheme, a DLL is maintained for each path, and each DLL tracks the average timing of the multiple signal instances for the assigned path. To reduce timing jitter, the SINR of a signal instance may be estimated for a number of different time offsets. The loop filter for the DLL is initially updated in the normal manner. If a change in the time offset used for the sample timing is detected, then the SINRs for the new and prior offsets are compared. The new time offset is used if the associated SINR is better. Otherwise, the prior time offset is retained and used.
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公开(公告)号:CA2514809C
公开(公告)日:2012-10-02
申请号:CA2514809
申请日:2004-02-02
Applicant: QUALCOMM INC
Inventor: BHUSHAN NAGA , CHAPONNIERE ETIENNE FRANCOIS , BLACK PETER J , TSE DAVID NGAR CHING
Abstract: A transmitter directed, distributed receiver using multi-user diversity provided by the distribution of the receiver. Advantage is taken of the uncorrelated variations over time in the condition of communication links between a common transmitter and several users. The greater the variation in the quality of a particular link over time, the greater the increase in total system throughput provided. An scheduler metric (or scheduler metric) represents the instantaneous quality of the communication link between each user and the transmitter with respect to the average quality of the link. Alternatively, the scheduler metric represents the instantaneous channel condition with respect to the average data throughput over that channel. The common transmitting station uses the scheduler metric to directly compare the desirability of granting each channel access with the desirability of granting each other channel access. The users with links that have the greatest scheduler metric are provided access to the channels.
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公开(公告)号:AU2008302071B2
公开(公告)日:2012-08-23
申请号:AU2008302071
申请日:2008-09-19
Applicant: QUALCOMM INC
Inventor: BLACK PETER J , NANDA SANJIV , YAVUZ MEHMET
Abstract: Interference that occurs during wireless communication may be managed through the use of fractional reuse and other techniques. In some aspects fractional reuse may relate to HARQ interlaces, portions of a timeslot, frequency spectrum, and spreading codes. Interference may be managed through the use of a transmit power profile and/or an attenuation profile. Interference also may be managed through the use of power management-related techniques. In a fractional reuse scheme employing spreading codes, each node may utilize a subset of the spreading codes. The subset may be determined by how much interference is seen when different spreading codes are used.
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公开(公告)号:AU2008286999B2
公开(公告)日:2012-07-26
申请号:AU2008286999
申请日:2008-08-08
Applicant: QUALCOMM INC
Inventor: NANDA SANJIV , YAVUZ MEHMET , BLACK PETER J
IPC: H04W52/24
Abstract: Transmit power (e.g., maximum transmit power) may be defined based on the maximum received signal strength allowed by a receiver and a minimum coupling loss from a transmitting node to a receiver. Transmit power may be defined for an access node (e.g., a femto node) such that a corresponding outage created in a cell (e.g., a macro cell) is limited while still providing an acceptable level of coverage for access terminals associated with the access node. An access node may autonomously adjust its transmit power based on channel measurement and a defined coverage hole to mitigate interference. Transmit power may be defined based on channel quality. Transmit power may be defined based on a signal-to-noise ratio at an access terminal. The transmit power of neighboring access nodes also may be controlled by inter-access node signaling.
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