Patents by Inventor Sony John Akkarakaran
Sony John Akkarakaran 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).
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Patent number: 9699677Abstract: Aspects of the present disclosures are directed to outer loop power control (OLPC) mechanisms that can achieve or realize the desired block error rate (BLER) performance in a wireless network that supports frame early termination (FET) utilizing multiple decoding attempts during the same transmit time interval.Type: GrantFiled: November 5, 2014Date of Patent: July 4, 2017Assignee: QUALCOMM IncorporatedInventors: Peyman Razaghi, Sony John Akkarakaran, Sharad Deepak Sambhwani
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Patent number: 9516609Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, a single inner loop power control may be utilized to control a power of both a primary stream and a secondary stream, in a system where the power of the secondary stream is linked to the power of the primary stream. That is, a single transmit power control command calculated according to the primary stream and directly controlling the power of the primary stream can effectively control the power of both uplink streams. Further, the disclosure provides outer loop power control, where a signal-to-interference ratio target used in the inner loop power control can be adjusted. Here, the SIR target may be adjusted in accordance with at least one of a block error rate performance or a HARQ failure performance of one of the primary stream or the secondary stream.Type: GrantFiled: November 7, 2011Date of Patent: December 6, 2016Assignee: QUALCOMM IncorporatedInventors: Sharad Deepak Sambhwani, Sony John Akkarakaran
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Patent number: 9084207Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, an enhanced pilot reference may be provided for enabling increased data rates on a secondary stream. Specifically, a primary stream, provided on a primary virtual antenna, includes an enhanced primary data channel E-DPDCH, a primary control channel DPCCH, and an enhanced primary control channel E-DPCCH. Further, a secondary stream, provided on a secondary virtual antenna, includes an enhanced secondary data channel S-E-DPDCH and a secondary control channel S-DPCCH. Here, the secondary control channel S-DPCCH may be transmitted at a boosted power level relative to a determined reference power level.Type: GrantFiled: November 7, 2011Date of Patent: July 14, 2015Assignee: QUALCOMM IncorporatedInventors: Sharad Deepak Sambhwani, Sony John Akkarakaran
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Publication number: 20150131466Abstract: Aspects of the present disclosures are directed to outer loop power control (OLPC) mechanisms that can achieve or realize the desired block error rate (BLER) performance in a wireless network that supports frame early termination (FET) utilizing multiple decoding attempts during the same transmit time interval.Type: ApplicationFiled: November 5, 2014Publication date: May 14, 2015Inventors: Peyman Razaghi, Sony John Akkarakaran, Sharad Deepak Sambhwani
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Patent number: 9007888Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In some particular aspects, scheduling of the uplink MIMO transmissions may make a determination between single stream, rank=1 transmissions and dual stream, rank=2 transmissions based on various factors. Further, when switching between single and dual stream transmissions in the presence of HARQ retransmissions of failed packets, the scheduling function may determine to transmit the HARQ retransmissions on a single stream transmission or to transmit the HARQ retransmissions on one stream while transmitting new packets on the other stream.Type: GrantFiled: November 7, 2011Date of Patent: April 14, 2015Assignee: QUALCOMM IncorporatedInventors: Sharad Deepak Sambhwani, Sony John Akkarakaran
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Patent number: 8953713Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, a primary stream (610) may be utilized to carry a primary data channel E-DPDCH (624), and a secondary stream (612) may be utilized to carry a secondary data channel S-E-DPDCH (620). Further, the primary stream (610) may be precoded utilizing a primary precoding vector, and the secondary stream (612) may be precoded utilizing a secondary precoding vector, with coefficients orthogonal to those of the primary precoding vector. The primary stream may include an enhanced control channel E-DPCCH (614) adapted to carry control information associated with both the primary data channel E-DPDCH (624) and the secondary data channel S-E-DPDCH (620).Type: GrantFiled: November 7, 2011Date of Patent: February 10, 2015Assignee: QUALCOMM IncorporatedInventors: Sharad Deepak Sambhwani, Sony John Akkarakaran
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Patent number: 8804627Abstract: Attributes of access terminals are employed in determining durations for erasure sequences. Transmissions from access terminals are analyzed to determine different attributes are based at least on these attributes traffic models are estimated. Those terminals whose traffic models tend towards more frequent occurrences of longer erasures are assigned longer erasure durations to improve performance in erasure sequence detection.Type: GrantFiled: December 19, 2007Date of Patent: August 12, 2014Assignee: QUALCOMM IncorporatedInventors: Sony John Akkarakaran, Ming-Chang Tsai, Tingfang Ji
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Patent number: 8718036Abstract: Techniques for transmitting configurable pilots in a wireless communication system are described. The placement of pilots is determined based on an assignment of resources for transmission. Different placements of pilots are used for different assignments of resources. The assignment may be for one or more frames and/or one or more H-ARQ interlaces. The placement of pilot(s) in each frame or H-ARQ interlace may be determined based on the placement of pilot(s) in prior frame(s) or H-ARQ interlace(s). Pilots are sent at time and frequency locations determined by the placement of the pilots. Each pilot may be sent on one or more subcarriers in one or more symbol periods. The pilots may be TDM pilots and/or some other type of pilot. The pilots may be sent using IFDMA, LFDMA, EFDMA, OFDMA, or some other multiplexing scheme.Type: GrantFiled: February 2, 2011Date of Patent: May 6, 2014Assignee: QUALCOMM IncorporatedInventors: Sony John Akkarakaran, Aamod Khandekar
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Patent number: 8488566Abstract: The disclosed embodiments provide for methods and systems for allocating a plurality of users on a control channel in a wireless communication network. In one aspect, a method for allocating a plurality of users on a control channel includes assigning a first number of modulation symbols to a hop region for a control channel, and allocating a second number of users to the first number of modulation symbols.Type: GrantFiled: April 12, 2012Date of Patent: July 16, 2013Assignee: QUALCOMM IncorporatedInventors: Arak Sutivong, Sony John Akkarakaran
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Patent number: 8332710Abstract: Aspects described a low receiver complexity approach for reliable packet decoding when Hybrid ARQ protocol is employed with persistent assignment and potentially an erasure sequence transmission. Multiple hypotheses packet decoding performance is achieved while mitigating multiple hypotheses receiver complexity. A reference number is utilized to perform hypotheses. The reference number is independent of a start of packet. A sequence of reference numbers can be utilized, which may not necessarily be sequential numbers. The reference numbers are pre-defined.Type: GrantFiled: March 17, 2008Date of Patent: December 11, 2012Assignee: QUALCOMM IncorporatedInventors: Ming-Chang Tsai, Gwendolyn Barriac, Sony John Akkarakaran
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Publication number: 20120287965Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, a primary stream (610) may be utilized to carry a primary data channel E-DPDCH (624), and a secondary stream (612) may be utilized to carry a secondary data channel S-E-DPDCH (620). Further, the primary stream (610) may be precoded utilizing a primary precoding vector, and the secondary stream (612) may be precoded utilizing a secondary precoding vector, with coefficients orthogonal to those of the primary precoding vector. The primary stream may include an enhanced control channel E-DPCCH (614) adapted to carry control information associated with both the primary data channel E-DPDCH (624) and the secondary data channel S-E-DPDCH (620).Type: ApplicationFiled: November 7, 2011Publication date: November 15, 2012Applicant: QUALCOMM INCORPORATEDInventors: Sharad Deepak Sambhwani, Sony John Akkarakaran
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Publication number: 20120287868Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In some particular aspects, scheduling of the uplink MIMO transmissions may make a determination between single stream, rank=1 transmissions and dual stream, rank=2 transmissions based on various factors. Further, when switching between single and dual stream transmissions in the presence of HARQ retransmissions of failed packets, the scheduling function may determine to transmit the HARQ retransmissions on a single stream transmission or to transmit the HARQ retransmissions on one stream while transmitting new packets on the other stream.Type: ApplicationFiled: November 7, 2011Publication date: November 15, 2012Applicant: QUALCOMM INCORPORATEDInventors: Sharad Deepak Sambhwani, Sony John Akkarakaran
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Publication number: 20120287798Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, a single inner loop power control may be utilized to control a power of both a primary stream and a secondary stream, in a system where the power of the secondary stream is linked to the power of the primary stream. That is, a single transmit power control command calculated according to the primary stream and directly controlling the power of the primary stream can effectively control the power of both uplink streams. Further, the disclosure provides outer loop power control, where a signal-to-interference ratio target used in the inner loop power control can be adjusted. Here, the SIR target may be adjusted in accordance with at least one of a block error rate performance or a HARQ failure performance of one of the primary stream or the secondary stream.Type: ApplicationFiled: November 7, 2011Publication date: November 15, 2012Applicant: QUALCOMM INCORPORATEDInventors: Sharad Deepak Sambhwani, Sony John Akkarakaran
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Publication number: 20120287867Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, an enhanced pilot reference may be provided for enabling increased data rates on a secondary stream. Specifically, a primary stream, provided on a primary virtual antenna, includes an enhanced primary data channel E-DPDCH, a primary control channel DPCCH, and an enhanced primary control channel E-DPCCH. Further, a secondary stream, provided on a secondary virtual antenna, includes an enhanced secondary data channel S-E-DPDCH and a secondary control channel S-DPCCH. Here, the secondary control channel S-DPCCH may be transmitted at a boosted power level relative to a determined reference power level.Type: ApplicationFiled: November 7, 2011Publication date: November 15, 2012Applicant: QUALCOMM INCORPORATEDInventors: Sharad Deepak Sambhwani, Sony John Akkarakaran
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Publication number: 20120281642Abstract: Methods and apparatuses are provided for uplink MIMO transmissions in a wireless communication system. In particular, scheduled uplink transmission power is allocated between a primary stream including an E-DPDCH and a secondary stream including an S-E-DPDCH. Specifically, a ratio between the power of the E-DPDCH and a primary pilot channel DPCCH, as well as a ratio between the power of the S-E-DPCCH and an unboosted power of the S-DPCCH, each corresponds to a first traffic to pilot power ratio. Further, the transport block size for a primary transport block provided on the E-DPDCH is determined based on the first traffic to pilot power ratio, while the transport block size for a secondary transport block provided on the S-E-DPDCH is determined based on a second traffic to pilot power ratio.Type: ApplicationFiled: November 7, 2011Publication date: November 8, 2012Applicant: QUALCOMM INCORPORATEDInventors: Sharad Deepak Sambhwani, Sony John Akkarakaran
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Publication number: 20120195279Abstract: The disclosed embodiments provide for methods and systems for allocating a plurality of users on a control channel in a wireless communication network. In one aspect, a method for allocating a plurality of users on a control channel includes assigning a first number of modulation symbols to a hop region for a control channel, and allocating a second number of users to the first number of modulation symbols.Type: ApplicationFiled: April 12, 2012Publication date: August 2, 2012Applicant: QUALCOMM INCORPORATEDInventors: Arak Sutivong, Sony John Akkarakaran
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Patent number: 8160046Abstract: The disclosed embodiments provide for methods and systems for allocating a plurality of users on a control channel in a wireless communication network. In one aspect, a method for allocating a plurality of users on a control channel includes assigning a first number of modulation symbols to a hop region for a control channel, and allocating a second number of users to the first number of modulation symbols.Type: GrantFiled: December 22, 2004Date of Patent: April 17, 2012Assignee: QUALCOMM IncorporatedInventors: Arak Sutivong, Sony John Akkarakaran
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Patent number: 7986748Abstract: A method and transmitter for generating a transmission signal are disclosed in various embodiments. In one step, a first magnitude relationship of a received first plurality of symbols is determined to see if it qualifies for modification. At least one of the first plurality of symbols are modified when the first magnitude relationship qualifies to produce a second plurality of symbols. A transmission signal is produced using the second plurality of symbols, where a second magnitude relationship of the second plurality of symbols is different than the first magnitude relationship.Type: GrantFiled: December 8, 2005Date of Patent: July 26, 2011Assignee: QUALCOMM, IncorporatedInventors: Sony John Akkarakaran, Aamod Khandekar, Alexei Gorokhov
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Publication number: 20110122838Abstract: Techniques for transmitting configurable pilots in a wireless communication system are described. The placement of pilots is determined based on an assignment of resources for transmission. Different placements of pilots are used for different assignments of resources. The assignment may be for one or more frames and/or one or more H-ARQ interlaces. The placement of pilot(s) in each frame or H-ARQ interlace may be determined based on the placement of pilot(s) in prior frame(s) or H-ARQ interlace(s). Pilots are sent at time and frequency locations determined by the placement of the pilots. Each pilot may be sent on one or more subcarriers in one or more symbol periods. The pilots may be TDM pilots and/or some other type of pilot. The pilots may be sent using IFDMA, LFDMA, EFDMA, OFDMA, or some other multiplexing scheme.Type: ApplicationFiled: February 2, 2011Publication date: May 26, 2011Applicant: QUALCOMM INCORPORATEDInventors: Sony John Akkarakaran, Aamod Khandekar
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Patent number: 7903628Abstract: Techniques for transmitting configurable pilots in a wireless communication system are described. The placement of pilots is determined based on an assignment of resources for transmission. Different placements of pilots are used for different assignments of resources. The assignment may be for one or more frames and/or one or more H-ARQ interlaces. The placement of pilot(s) in each frame or H-ARQ interlace may be determined based on the placement of pilot(s) in prior frame(s) or H-ARQ interlace(s). Pilots are sent at time and frequency locations determined by the placement of the pilots. Each pilot may be sent on one or more subcarriers in one or more symbol periods. The pilots may be TDM pilots and/or some other type of pilot. The pilots may be sent using IFDMA, LFDMA, EFDMA, OFDMA, or some other multiplexing scheme.Type: GrantFiled: August 17, 2006Date of Patent: March 8, 2011Assignee: QUALCOMM IncorporatedInventors: Sony John Akkarakaran, Aamod Khandekar