Patents by Inventor Peter J. Black
Peter J. Black has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8867456Abstract: Interference that occurs during wireless communication may be managed by hybrid time reuse. A method, apparatus amend medium of communication determines one or more time reuse patterns of respective one or more unplanned access points. A second time reuse pattern that is less interfering with the one or more time reuse patterns is selected. Signals are transmitted according to the second time reuse pattern from a second unplanned access point to an associated access terminal.Type: GrantFiled: November 24, 2008Date of Patent: October 21, 2014Assignee: QUALCOMM IncorporatedInventors: Mehmet Yavuz, Peter J. Black, Sanjiv Nanda
-
Patent number: 8854944Abstract: Disclosed are methods and apparatus for interference cancellation in a wireless communication system. In particular, the disclosed methods and apparatus provide for interference cancellation in a wireless device, including extending linear interference cancellation techniques, such as quasi-linear interference cancellation (QLIC), in the wireless device to a first orthogonal set, which may be a first quasi orthogonal function (QOF) set for a cdma2000 system to cancel interference from that set upon another desired QOF set. QLIC may also be extended to cancellation of signals from non-intended base stations as well. Accordingly, the present methods and apparatus afford reduced interference through QLIC by canceling signals due to either undesired QOF sets or non-intended base stations, which in turn results in an increase in forward link capacity.Type: GrantFiled: November 8, 2009Date of Patent: October 7, 2014Assignee: QUALCOMM IncorporatedInventors: Yu-Cheun Jou, Rashid A. Attar, Peter J. Black
-
Patent number: 8824979Abstract: 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.Type: GrantFiled: September 17, 2008Date of Patent: September 2, 2014Assignee: QUALCOMM IncorporatedInventors: Mehmet Yavuz, Peter J. Black, Sanjiv Nanda
-
Publication number: 20140241249Abstract: In a transmission scheme wherein multi-slot packet transmissions to a remote station can be terminated by an acknowledgment signal from the remote station, code symbols can be efficiently packed over the multi-slot packet so that the remote station can easily decode the data payload of the multi-slot packet by decoding only a portion of the multi-slot packet. Hence, the remote station can signal for the early termination of the multi-slot packet transmission, which thereby increases the data throughput of the system.Type: ApplicationFiled: May 8, 2014Publication date: August 28, 2014Applicant: QUALCOMM IncorporatedInventors: Nagabhushana Sindhushayana, Peter J. Black
-
Publication number: 20140233416Abstract: Interference that occurs during wireless communication may be managed by determination of a selected transmit waveform exhibiting a preferred channel quality. A method, apparatus and medium of communication determine a transmit waveform from among a plurality of allocated waveforms of an unplanned access point to an associated access terminal. The transmit waveform exhibiting a highest channel quality with an associated access terminal over others of the plurality of allocated waveforms is determined. Signals are transmitted according to the transmit waveform from the unplanned access point to the associated access terminal.Type: ApplicationFiled: April 28, 2014Publication date: August 21, 2014Applicant: QUALCOMM IncorporatedInventors: Peter J. Black, Mingxi Fan, Sarut Vanichpun, Mehmet Yavuz
-
Publication number: 20140187248Abstract: Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.Type: ApplicationFiled: November 8, 2013Publication date: July 3, 2014Applicant: Qualcomm IncorporatedInventors: Peter J. Black, Christopher G. Lott, Rashid A. Attar, Yu-Cheun Jou, Jun Ma
-
Patent number: 8737538Abstract: Synchronized broadcast transmits a same broadcast content using a same waveform from multiple transmitters. Transmitters each apply a same spreading code for broadcast transmissions. In a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchronized broadcast. An OFDM receiver is then used to process the received synchronized broadcast transmission. An alternate embodiment implements a broadcast Pseudo-random Noise (PN) code for use by multiple transmitters. An equalizer is then employed to estimate the synchronized broadcast transmission.Type: GrantFiled: January 5, 2011Date of Patent: May 27, 2014Assignee: Qualcomm IncorporatedInventors: Matthew S. Grob, Peter J. Black, Srikant Jayaraman, Paul E. Jacobs
-
Patent number: 8712461Abstract: 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.Type: GrantFiled: August 6, 2008Date of Patent: April 29, 2014Assignee: QUALCOMM IncorporatedInventors: Mehmet Yavuz, Peter J. Black, Sanjiv Nanda
-
Patent number: 8700083Abstract: 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.Type: GrantFiled: August 6, 2008Date of Patent: April 15, 2014Assignee: QUALCOMM IncorporatedInventors: Mehmet Yavuz, Peter J. Black, Sanjiv Nanda
-
Patent number: 8638758Abstract: Embodiments described herein relate to providing variable rate broadcast services with soft handoff in wireless communications. In an embodiment, a plurality of access points (e.g., servicing various cells in a broadcast area) may transmit a broadcast content in accordance with a rate set. The rate set may include a plurality of distinct data rates each associated with a transmission format, configured to allow the broadcast packets transmitted by the access points to be incrementally combined (e.g., on a per-slot basis at a subscribing AT). The data rates and corresponding transmission formats in the rate set may be selected in relation to the supportable data rates of the cells in the broadcast area, as well as the requirements for supporting soft handoff in these cells.Type: GrantFiled: December 22, 2011Date of Patent: January 28, 2014Assignee: QUALCOMM IncorporatedInventor: Peter J. Black
-
Patent number: 8634438Abstract: Systems and methods for performing a handoff of an access terminal from a macro node to a femto node are disclosed. To direct handoff of the access terminal, an identity of the femto node is determined. A femto node provided may be identified by at least a difference between the offset of a first pilot signal and the offset of a second pilot signal.Type: GrantFiled: November 24, 2009Date of Patent: January 21, 2014Assignee: QUALCOMM IncorporatedInventors: Sanjiv Nanda, Mehmet Yavuz, J. Rodney Walton, Peter J. Black
-
Patent number: 8630602Abstract: Techniques for generalized pilot interference cancellation in a communications receiver. In an exemplary embodiment, a residual pilot is cancelled from a post-traffic cancellation signal following initial first-pass pilot cancellation. Residual pilot cancellation is achieved by adding the first-pass cancelled pilot as earlier stored in memory back to the post-traffic cancellation signal, and pilot filtering the resulting signal to generate an improved pilot interference estimate. In an alternative exemplary embodiment, an arbitrary number of iterations may be applied to generate the pilot interference estimate by successively storing each generated pilot interference estimate in memory.Type: GrantFiled: June 15, 2009Date of Patent: January 14, 2014Assignee: QUALCOMM IncorporatedInventors: Rashid Ahmed A. Attar, Yu-Cheun Jou, Peter J. Black, Jun Ma
-
Patent number: 8619835Abstract: Synchronized broadcast transmits a same broadcast content using a same waveform from multiple transmitters. Transmitters each apply a same spreading code for broadcast transmissions. In a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchronized broadcast. An OFDM receiver is then used to process the received synchronized broadcast transmission. An alternate embodiment implements a broadcast Pseudo-random Noise (PN) code for use by multiple transmitters. An equalizer is then employed to estimate the synchronized broadcast transmission.Type: GrantFiled: January 5, 2011Date of Patent: December 31, 2013Assignee: Qualcomm IncorporatedInventors: Matthew S. Grob, Peter J. Black, Srikant Jayaraman, Paul E. Jacobs
-
Patent number: 8611305Abstract: Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.Type: GrantFiled: September 22, 2009Date of Patent: December 17, 2013Assignee: QUALCOMM IncorporatedInventors: Peter J. Black, Christopher G. Lott, Rashid A. Attar, Yu-Cheun Jou, Jun Ma
-
Patent number: 8611310Abstract: Techniques to improve the acquisition process in a spread spectrum environment. The signals from different CDMA systems are spread with different sets of PN sequences, with the PN sequences in each set being uncorrelated to the PN sequences in the other sets. The mobile station can attempt to acquire the pilot signal by processing the received signal with a first set of PN sequences corresponding to a first hypothesis of the particular signal being acquired. If acquisition of the pilot signal fails, a second set of PN sequences corresponding to a second hypothesis is selected and used to process the received signal. The PN sequences in the second set are uncorrelated to the PN sequences in the first set.Type: GrantFiled: September 10, 2003Date of Patent: December 17, 2013Assignee: Qualcomm IncorporatedInventors: Peter J. Black, Roberto Padovani, Lindsay A. Weaver, Jr.
-
Patent number: 8605801Abstract: In a wireless communication system where different frequency bands are deployed to generate various communication zones, pilot signal set management for a plurality of pilot signals generated from an additional coverage zone is based on identifying a preselected signal set from the plurality of pilot signals and determining whether a predetermined criterion is met.Type: GrantFiled: May 15, 2009Date of Patent: December 10, 2013Assignee: QUALCOMM IncorporatedInventors: Ramin Rezaiifar, Christopher G. Lott, Donna Ghosh, Peter J. Black, Rashid Ahmed A. Attar
-
Patent number: 8594252Abstract: Techniques for improving the capacity of a wireless communications system using interference cancellation (IC). In an early decoding and IC aspect, a frame transmitted from a user to a base station may be decoded prior to the entire frame being received by the base station. The remaining portion of the frame may then be re-constructed at the base station prior to its reception, and cancelled from the receive signal to reduce the interference to frames received from other users. In a power control aspect for early decoding and IC, the power control target level at a local base station may be adjusted in response to successfully early decoding a frame, without affecting the overall outer loop power control operation. Further aspects include late decoding techniques for utilizing the IC of other users' signals to improve the probability of decoding a given user's frames, as well as techniques for traffic channel demodulation using channel re-estimation.Type: GrantFiled: September 22, 2009Date of Patent: November 26, 2013Assignee: QUALCOMM IncorporatedInventors: Peter J. Black, Christopher G. Lott, Rashid A. Attar, Yu-Cheun Jou, Jun Ma
-
Publication number: 20130310025Abstract: Devices and methods are provided for providing wireless coverage redundancy in case, for example, the backhaul of an access point (AP) base station is not available. In one embodiment, the method involves monitoring the backhaul, and in response to the backhaul being available, facilitating communication between an access terminal (AT) and the macro network via the backhaul. In addition, or in the alternative (e.g., when the backhaul is not available), a communication signal between the AT and a macro base station (or another AP base station) may be boosted.Type: ApplicationFiled: July 19, 2013Publication date: November 21, 2013Applicant: Qualcomm IncorporatedInventors: Peter J. BLACK, Matthew S. GROB
-
Patent number: 8583137Abstract: Techniques for dynamically varying coverage in a multi-carrier communication system are described. A sector may operate on multiple carriers. The sector may vary coverage on a given carrier k based on its load, so that less interference may be caused to other sectors when the sector load is light. In one design, the sector may communicate on a first carrier at a first transmit power level and on a second carrier at a second transmit power level equal to or lower than the first transmit power level. The sector may vary the second transmit power level based on its load to vary the coverage of the second carrier. The sector may reduce the second transmit power level to zero or a low level if the sector load is light. The sector may also vary the second transmit power level based on a function of sector load or a switching pattern.Type: GrantFiled: May 14, 2009Date of Patent: November 12, 2013Assignee: QUALCOMM IncorporatedInventors: Ramin Rezaiifar, Peter J. Black
-
Patent number: 8582621Abstract: Synchronized broadcast transmits a same broadcast content using a same waveform from multiple transmitters. Transmitters each apply a same spreading code for broadcast transmissions. In a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchronized broadcast. An OFDM receiver is then used to process the received synchronized broadcast transmission. An alternate embodiment implements a broadcast Pseudo-random Noise (PN) code for use by multiple transmitters. An equalizer is then employed to estimate the synchronized broadcast transmission.Type: GrantFiled: January 5, 2011Date of Patent: November 12, 2013Assignee: Qualcomm IncorporatedInventors: Matthew S. Grob, Peter J. Black, Srikant Jayaraman, Paul E. Jacobs