公开(公告)号：PH12012501868A1

公开(公告)日：2015-05-18

申请号：PH12012501868

申请日：2012-09-20

Applicant: QUALCOMM INC

Inventor： PRASAD MALLADI DURGA ,  BYOUNG-HOON KIM ,  JUAN MONTOJO ,  SANDIP SARKAR

IPC: H04L1/18 ,  H04L5/00 ,  H04L27/26

Abstract: Techniques for sending control information in a wireless communication system are described. In an aspect, a UE spreads control information across frequency with a DFT and across time with an orthogonal sequence to obtain output data for the control information. In one design, the UE receives codewords for N HARQ processes in N downlink subframes, determines an ACK value for each HARQ process, codes N ACK values for the N HARQ processes to obtain ACK information, generates output data for the ACK information, and sends the output data in one of M uplink subframes. In another aspect, first control information is processed based on a first coding and multiplexing scheme utilizing code division multiplexing in time and frequency domains.; Second control information is processed based on a second coding and multiplexing scheme utilizing code division multiplexing in time domain and spreading in frequency domain.

公开(公告)号：MY151933A

公开(公告)日：2014-07-31

申请号：MYPI20093082

申请日：2008-02-14

Applicant: QUALCOMM INC

Inventor： PRASAD MALLADI DURGA ,  JUAN MONTOJO

IPC: H04B7/00

Abstract: SYSTEMS AND METHODOLOGIES ARE DESCRIBED THAT FACILITATE UTILIZING POWER CONTROL PREAMBLES WITH CLOSED LOOP POWER CONTROL TECHNIQUES IN A WIRELESS COMMUNICATION ENVIRONMENT. AN UPLINK GRANT CAN BE TRANSFERRED OVER A DOWNLINK (E.G. A FIRST UPLINK GRANT AFTER UPLINK INACTIVITY), AND A POWER CONTROL PREAMBLE CAN BE SENT OVER AN UPLINK IN RESPONSE TO THE UPLINK GRANT. ACCORDING TO AN EXAMPLE, TRANSMISSION OF THE POWER CONTROL PREAMBLE CAN BE EXPLICITLY SCHEDULED AND/OR IMPLICITLY SCHEDULED. THE POWER CONTROL PREAMBLE CAN BE TRANSMITTED AT A POWER LEVEL DETERMINED BY AN ACCESS TERMINAL UTILIZING AN OPEN LOOP POWER CONTROL MECHANISM. A BASE STATION (102) CAN ANALYZE THE POWER CONTROL PREAMBLE AND GENERATE A POWER CONTROL COMMAND BASED THEREUPON TO CORRECT THE POWER LEVEL EMPLOYED BY THE ACCESS TERMINAL (116, 122). THE ACCESS TERMINAL CAN THEREAFTER UTILIZE THE POWER CONTROL COMMAND TO ADJUST THE POWER LEVEL FOR UPLINK DATA TRANSMISSION.

公开(公告)号：MY151406A

公开(公告)日：2014-05-30

申请号：MYPI20093147

申请日：2008-02-20

Applicant: QUALCOMM INC

Inventor： AKBAR ATTAR RASHID AHMED ,  PRASAD MALLADI DURGA ,  FRANCESCO GRILLI ,  KIRTI GUPTA ,  LORENZO CASACCIA ,  EDWARD TENNY NATHAN ,  ORONZO FLORE

IPC: H04W36/14 ,  H04W36/38

Abstract: AN INTER-SYSTEM HANDOVER SYSTEM FOR A WIRELESS COMMUNICATION SYSTEM (10) SUPPORTS HAND-DOWN AND HAND-UP OF USER EQUIPMENT (UE) (204) TO DIFFERENT RADIO ACCESS TECHNOLOGIES, INCLUDING SYNCHRONOUS AND ASYNCHRONOUS SYSTEMS. LATENCY AND HANDOVER CONNECTION FAILURES ARE REDUCED BY AN ACCESS NODE (NODEB) (202, 304) BROADCASTING INFORMATION ABOUT NEIGHBORING SYSTEMS (TARGETS) WHEN THE UE (204) RECEPTION (RX) CAPABILITY IS BOTH INSIDE OR OUTSIDE THE RECEPTION RANGE OF THE TARGET. A SINGLE RX CHAIN IS SUFFICIENT, ALTHOUGH TRANSITIONING BETWEEN A WIRELESS WIDE AREA NETWORK (WWAN) TO A WIRELESS LOCAL AREA NETWORK (WLAN) MAY ADVANTAGEOUSLY BENEFIT FROM SIMULTANEOUS OPERATION ON TWO RX CHAINS. OPTIMIZED LIST OF NEIGHBORING RAT SYSTEMS (TARGETS) ARE BROADCAST FROM THE NETWORK, INCLUDING MEASUREMENT PARAMETERS AND REPORTING INSTRUCTIONS. THEREBY, UE-DRIVEN REPORTING MINIMIZES LATENCIES. UE (204) REPORTS OTHER-SYSTEM SEARCHES TO NETWORK ONLY IF NEEDED FOR A HANDOVER. IN ADDITION, HANDOVER REQUESTS CAN BE BUNDLED WITH OTHER-SYSTEM MEASUREMENT INFORMATION, IF NECESSARY, FOR ADDITIONAL EFFICIENCIES.

公开(公告)号：MY149955A

公开(公告)日：2013-11-15

申请号：MYPI20092512

申请日：2008-01-10

Applicant: QUALCOMM INC

Inventor： PRASAD MALLADI DURGA ,  BYOUNG-HOON KIM

IPC: H04J11/00

Abstract: TECHNIQUES FOR TRANSMITTING INFORMATION USING CYCLICALLY SHIFTED SEQUENCES ARE DESCRIBED. IN ONE DESIGN, FIRST AND SECOND SEQUENCES MAY BE GENERATED BY CYCLICALLY SHIFTING A BASE SEQUENCE BY FIRST AND SECOND AMOUNTS, RESPECTIVELY. THE BASE SEQUENCE MAY BE A CAZAC SEQUENCE, A PN SEQUENCE, OR SOME OTHER SEQUENCE HAVING GOOD CORRELATION PROPERTIES. THE CYCLIC SHIFTS FOR THE FIRST AND SECOND SEQUENCES MAY BE DETERMINED BASED ON A HOPPING PATTERN. A FIRST MODULATED SEQUENCE MAY BE GENERATED BASED ON THE FIRST SEQUENCE AND A FIRST MODULATION SYMBOL AND MAY BE SENT IN A FIRST TIME INTERVAL. A SECOND MODULATED SEQUENCE MAY BE GENERATED BASED ON THE SECOND SEQUENCE AND A SECOND MODULATION SYMBOL AND MAY BE SENT IN A SECOND TIME INTERVAL. EACH K MODULATED SEQUENCE MAY BE SENT ON K CONSECUTIVE SUBCARRIERS USING LOCALIZED FREQUENCY DIVISION MULTIPLEXING (LFDM).

公开(公告)号：MY149950A

公开(公告)日：2013-11-15

申请号：MYPI20092741

申请日：2008-01-28

Applicant: QUALCOMM INC

Inventor： PRASAD MALLADI DURGA

IPC: H04L1/16

Abstract: AN ACKNOWLEDGMENT (ACK) MAPPING AUTOMATION THAT REDUCES OVERHEAD FOR A WIRELESS COMMUNICATION SYSTEMS SUCH AS UTRAN-LTE, GLOBAL SYSTEM FOR MOBILE COMMUNICATIONS (GSM: ORIGINALLY FROM GROUPE SPÉCIAL MOBILE), HIGH-SPEED DOWNLINK PACKET ACCESS (HSDPA), OR ANY PACKET-SWITCHED SYSTEM, BY PROVIDING A MAPPING OF UPLINK (UL) LOCATION (I.E., MODULATION LOCATION IN TIME, FREQUENCY, AND CODE) BASED UPON A DOWNLINK (DL) ALLOCATIONS. ASPECTS ADDRESS DYNAMIC AND PERSISTENT SCHEDULING OF USER EQUIPMENT (EU) WITH A SELECTED COMBINATION OF IMPLICIT AND EXPLICIT MAPPING.

公开(公告)号：MY149270A

公开(公告)日：2013-08-15

申请号：MYPI20091519

申请日：2007-11-06

Applicant: QUALCOMM INC

Inventor： PRASAD MALLADI DURGA ,  BYOUNG-HOON KIM ,  TAESANG YOO

IPC: H04B7/06

Abstract: TECHNIQUES FOR SUPPORTING MIMO TRANSMISSION WITH LAYER PERMUTATION ARE DESCRIBED. IN ONE ASPECT, MULTIPLE CODEWORDS MAY BE GENERATED FOR TRANSMISSION FROM MULTIPLE ANTENNAS (E.G., VIRTUAL ANTENNAS), WITH THE NUMBER OF CODEWORDS BEING LESS THAN THE NUMBER OF ANTENNAS (1212). EACH CODEWORD MAY BE MAPPED ACROSS THE MULTIPLE ANTENNAS (1214). TWO CODEWORDS MAY BE GENERATED. FOR RANK 3, THE FIRST CODEWORD MAY BE MAPPED TO ONE LAYER (OR ONE ANTENNA ON EACH SUBCARRIER), AND THE SECOND CODEWORD MAY BE MAPPED TO TWO LAYERS (OR TWO ANTENNAS ON EACH SUBCARRIER). FOR RANK 4, EACH CODEWORD MAY BE MAPPED TO TWO LAYERS. IN ANOTHER ASPECT, A BASE CQI INDICATIVE OF AN AVERAGE SIGNAL QUALITY MAY BE DETERMINED. A DELTA CQI INDICATIVE OF IMPROVEMENT OVER THE AVERAGE SIGNAL QUALITY MAY ALSO BE DETERMINED. IN YET ANOTHER ASPECT, SELECTION MAY BE PERFORMED WITH DIFFERENT PENALTY FACTORS FOR DIFFERENT RANKS OR NUMBER OF CODEWORDS.

公开(公告)号：MY147244A

公开(公告)日：2012-11-14

申请号：MYPI20091532

申请日：2007-11-06

Applicant: QUALCOMM INC

Inventor： PRASAD MALLADI DURGA

IPC: H04L25/03

Abstract: WO 2008/058109 PCT/US2007/083730 27 ABSTMCR CODEWORD LEVEL SCRAMBLING FOR MIMO TRANSMISSION TECHNIQUES FOR PERFORMING CODEWORD LEVEL SCRAMBLING FOR A MIMO TRANSMISSION 5 ARE DESCRIBED. A TRANSMITTER STATION MAY PERFORM CHANNEL ENCODING FOR MULTIPLE DATA STREAMS BEING SENT SIMULTANEOUSLY FOR A MIMO TRANSMISSION. 'THE CHANNEL ENCODING MAV INCLUDE FORWARD ERROR CORRECTION (FEC) ENCODING AND/OR RATE MATCHING. THE TRANSMITTER STATION MAY PERFORM SCRAMBLING FOR THE MULTIPLE DATA STREAMS WITH DIFFERENT SCRAMBLING CODES AFTER THE CHANNEL ENCODING. THE TRANSMITTER STATION MAY ALSO PERFORM 10 CHANNEL INTERLEAVING, SYMBOL MAPPING, AND SPATIAL PROCESSING FOR THE MULTIPLE DATA STREAMS AFTER THE CHANNEL ENCODING. A RECEIVER STATION MAY RECEIVE THE MIMO TRANSMISSION, PERFORM DESCRAMBLING FOR THE MULTIPLE DATA STREAMS WITH THE DIFFERENT SCRAMBLING CODES, AND THEN PERFORM CHANNEL DECODING FOR THE MULTIPLE DATA STREAMS. THE SCRAMBLING MAY ALLOW THE RECEIVER STATION TO ISOLATE EACH DATA STREAM BY PERFORMING 15 THE COMPLEMENTARY DESCRAMB]IDG AND TO OBTAIN RANDOMIZED INTERFERENCE FROM THE REMAINING DATA STREANI(S), WHICH MAY IMPROVE PERFORMANCE.

公开(公告)号：AU2008230783B2

公开(公告)日：2011-10-13

申请号：AU2008230783

申请日：2008-03-27

Applicant: QUALCOMM INC

Inventor： JUAN MONTOJO ,  PRASAD MALLADI DURGA ,  YONGBIN WEI

IPC: H04L1/00

Abstract: Systems and methodologies are described that facilitate employing circular buffer based rate matching. Encoded block(s) that include systematic, parity 1, and parity 2 bits can be generated using turbo code. Bit type can be identified to separate bits into distinct groups. Systematic bits can be interleaved together to generate a randomized sequence of systematic bits, parity 1 bits can be interleaved together to yield a randomized sequence of parity 1 bits, and parity 2 bits can be interleaved together to output a randomized sequence of parity 2 bits. The randomized sequences of parity 1 bits and parity 2 bits can be interlaced together in an alternating manner. The randomized sequence of systematic bits can be inserted into a circular buffer, and upon inserting the entire sequence, the interlaced parity bits can be inserted into the circular buffer (e.g., until reaching capacity). Bits inserted into the circular buffer are transmitted.

公开(公告)号：MY143300A

公开(公告)日：2011-04-15

申请号：MYPI20082947

申请日：2007-02-07

Applicant: QUALCOMM INC

Inventor： ALEKSANDAR DAMNJANOVIC ,  PRASAD MALLADI DURGA ,  JUAN MONTOJO

IPC: H04L12/56 ,  H04W28/24 ,  H04W52/50 ,  H04W74/08

Abstract: AN APPARATUS AND METHOD FOR FAST ACCESS IN A WIRELESS COMMUNICATION SYSTEM SYSTEMS AND METHODOLOGIES ARE DESCRIBED THAT FACILITATE A FAST ACCESS IN A WIRELESS 5 COMMUNICATION SYSTEM, SUCH AS OFDMA. ACCORDING TO VARIOUS ASPECTS, THE SYSTEM AND METHODS ARE DESCRIBED FOR GENERATING AN ACCESS PROBE COMPRISING AN ACCESS SIGNATURE HAVING QUALITY OF SERVICE INFORMATION AND TRANSMITTING THE ACCESS PROBE ON A RANDOM ACCESS CHANNEL. ALSO, THE SYSTEM AND METHODS OF RECEIVING AN ACCESS PROBE, THE ACCESS PROBE COMPRISING QUALITY OF SERVICE INFORMATION, GENERATING AN ACCESS GRANT IN RESPONSE TO THE RECEIVE ACCESS 10 PROBE, ADDRESSING THE ACCESS GRANT USING INFORMATION FROM THE ACCESS PROBE, AND TRANSMITTING IHE ACCESS GRANT.

公开(公告)号：MY154208A

公开(公告)日：2015-05-15

申请号：MYPI20106283

申请日：2007-10-01

Applicant: QUALCOMM INC

Inventor： PRASAD MALLADI DURGA ,  BYOUNG-HOON KIM

IPC: H04L9/00 ,  H04B1/707

Abstract: TO SUPPORT CELL SEARCH, MULTIPLE (E.G., TWO) SYNCHRONIZATION TRANSMISSIONS ARE SENT IN A FRAME WITH NON-UNIFORM SPACING.INFORMATION IS CONVEYED VIA THE NON-EQUAL DISTANCES BETWEEN CONSECUTIVE SYNCHRONIZATION TRANSMISSIONS. MULTIPLE LEVELS OF NONUNIFORM SPACING MAY BE USED TO CONVEY DIFFERENT TYPES OF INFORMATION. IN ONE DESIGN, THE MULTIPLE SYNCHRONIZATION TRANSMISSIONS ARE SENT IN DIFFERENT SUBFRAMES OF A FRAME, AND EACH SYNCHRONIZATION TRANSMISSION IS SENT IN ONE OF MULTIPLE SYMBOL PERIODS IN A RESPECTIVE SUBFRAME. THE SYNCHRONIZATION TRANSMISSIONS MAY BE SENT IN NON-EVENLY SPACED SUBFRAMES TO CONVEY FRAME BOUNDARY. ONE SYNCHRONIZATION TRANSMISSION MAY BE SENT IN ONE OF MULTIPLE POSSIBLE SYMBOL PERIODS DEPENDING ON THE INFORMATION, E.G., A PARTICULAR GROUP OF CELL IDS, BEING CONVEYED. THE DISTANCES BETWEEN SYNCHRONIZATION TRANSMISSIONS MAY ALSO BE USED TO CONVEY CYCLIC PREFIX LENGTH.A SECONDARY SYNCHRONIZATION TRANSMISSION CARRYING A CELL ID MAY BE SENT AT A PREDETERMINED OFFSET FROM ONE OF THE MULTIPLE SYNCHRONIZATION TRANSMISSIONS.