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公开(公告)号:BRPI0717887A2
公开(公告)日:2013-11-12
申请号:BRPI0717887
申请日:2007-10-31
Applicant: QUALCOMM INC
Inventor: MONTOJO JUAN , KIM BYOUNG-HOON , MALLADI DURGA PRASAD , LUO TAO
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公开(公告)号:BRPI0717954A2
公开(公告)日:2013-11-05
申请号:BRPI0717954
申请日:2007-11-06
Applicant: QUALCOMM INC
Inventor: MALLADI DURGA PRASAD , KIM BYOUNG-HOON , YOO TAESANG
Abstract: Techniques for supporting MIMO transmission with layer permutation are described. In one aspect, a base channel quality indicator (CQI) and a delta CQI for a multiple-input multiple-output (MIMO) transmission comprising multiple codewords are determined; and the base CQI and the delta CQI are sent as feedback information for the MIMO transmission.
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公开(公告)号:CA2675575C
公开(公告)日:2013-07-30
申请号:CA2675575
申请日:2008-02-06
Applicant: QUALCOMM INC
Inventor: KIM BYOUNG-HOON , MALLADI DURGA PRASAD , ZHANG XIAOXIA
IPC: H04B7/06
Abstract: Techniques for transmitting data using a combination of explicit cyclic delay and implicit cyclic delay are described. A transmitter may perform fir
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公开(公告)号:CA2675254C
公开(公告)日:2013-07-09
申请号:CA2675254
申请日:2008-02-06
Applicant: QUALCOMM INC
Inventor: KIM BYOUNG-HOON , MALLADI DURGA PRASAD , ZHANG XIAOXIA , YOO TAESANG
IPC: H04B7/06
Abstract: Techniques for sending a MIMO transmission using a combination of cyclic delay diversity and precoding are described. A set of delays (e.g., zero delay, small delay, and large delay) for cyclic delay diversity and a set of precoding matrices may be supported. In one design, a Node B may select a delay specifically for a UE or for a set of UEs served by the Node B. In another design, a UE may evaluate different combinations of precoding matrix and delay, determine the combination with the best performance, and send this combination of precoding matrix and delay to the Node B. The Node B may perform precoding with the precoding matrix and then processing for cyclic delay diversity based on the selected delay. Alternatively, the Node B may perform processing for cyclic delay diversity based on the selected delay and then precoding with the precoding matrix.
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公开(公告)号:CA2659466C
公开(公告)日:2013-04-16
申请号:CA2659466
申请日:2007-08-23
Applicant: QUALCOMM INC
Inventor: KIM BYOUNG-HOON , MALLADI DURGA PRASAD , MONTOJO JUAN
IPC: H04L27/26
Abstract: Systems and methods allow cell acquisition in a wireless communication system in frequency division multiple access mode of operation. Code sequences transmitted over primary synchronization channel (P-SCH) enable detection of symbol boundary, cyclic prefix duration, and indication of broadcast channel bandwidth. Sequences transmitted over secondary synchronization channel (S-SCH) afford radio frame boundary detection, cell identification, and broadcast channel bandwidth indication. Cell identification can be conveyed jointly between P-SCH and S-SCH codes. Broadcast channel sequences convey cyclic prefix timing, system bandwidth, and other system information. Relay of cell acquisition information, as well as multiple-cell acquisition when wireless system operates with frequency reuse are described.
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公开(公告)号:SG183706A1
公开(公告)日:2012-09-27
申请号:SG2012058822
申请日:2008-08-13
Applicant: QUALCOMM INC
Inventor: MALLADI DURGA PRASAD , KIM BYOUNG-HOON , MONTOJO JUAN , SARKAR SANDIP
Abstract: CODING AND MULTIPLEXING OF CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEMTechniques 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.Figure 7
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公开(公告)号:SG183705A1
公开(公告)日:2012-09-27
申请号:SG2012058814
申请日:2008-08-13
Applicant: QUALCOMM INC
Inventor: MALLADI DURGA PRASAD , KIM BYOUNG-HOON , MONTOJO JUAN , SARKAR SANDIP
Abstract: CODING AND MULTIPLEXING OF CONTROL INFORMATION IN A WIRELESS COMMUNICATION SYSTEMTechniques 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.Figure 7
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公开(公告)号:UA98636C2
公开(公告)日:2012-06-11
申请号:UAA200909128
申请日:2008-02-06
Applicant: QUALCOMM INC
Inventor: KIM BYOUNG-HOON , MALLADI DURGA PRASAD , ZHANG XIAOXIA
IPC: H04B7/06
Abstract: Описаныспособыдляпередачиданных, которыеиспользуюткомбинациюявнойциклическойзадержкии неявнойциклическойзадержки. Передатчикможетвыполнятьпервуюобработкудляразносас циклическойзадержкой (илиобработкуявнойциклическойзадержки) наосновепервогонаборазначенийциклическойзадержки, известныхприемнику. Передатчикможетвыполнятьпредварительноекодированиенаосновематрицыпредварительногокодированиянакакперед, таки послеобработкиявнойциклическойзадержки. Передатчикможетвыполнятьвторуюобработкудляразнесенияс циклическойзадержкой (илиобработкунеявнойциклическойзадержки) наосновевторогонаборазначенийциклическойзадержки, неизвестныхприемнику. Передатчикможетвыполнятьобработкукакявнойциклическойзадержки, таки неявнойциклическойзадержки, дляданных, иможетвыполнятьтолькообработкунеявнойциклическойзадержкидляпилотногосигнала. Одинобъектможетвыбиратьпервыйнаборзначенийциклическойзадержкии информироватьдругойобъект. Передатчикможетсамостоятельновыбиратьвторойнаборзначенийциклическойзадержкибезинформированияприемника.
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公开(公告)号:CA2644418C
公开(公告)日:2012-03-20
申请号:CA2644418
申请日:2007-03-27
Applicant: QUALCOMM INC
Inventor: KIM BYOUNG-HOON , MALLADI DURGA PRASAD , ZHANG XIAOXIA
Abstract: A method for controlling power in a wireless network is provided. The method includes determining a relative power parameter at a wireless device such as a mobile wireless terminal and receiving a load parameter at the wireless device, where the load parameter is associated with at least one other wireless cell. The method includes adjusting transmit power of the wireless device in view of the relative power parameter and the load parameter. In another embodiment, the transmit power can be controlled in view of an absolute power spectral density parameter.
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150.
公开(公告)号:AU2008318777B2
公开(公告)日:2012-03-15
申请号:AU2008318777
申请日:2008-10-29
Applicant: QUALCOMM INC
Inventor: KIM BYOUNG-HOON , MONTOJO JUAN , SARKAR SANDIP , MALLADI DURGA PRASAD
Abstract: Systems and methods for utilizing paging group IDs and paging indicators are disclosed for PDCCH and PDSCH transmissions to mobile terminals in a mobile communication system. By use of the paging group IDs and paging indicators, various groups of mobile terminals, including subsets of those groups can be paged with reduced decoding requirements. Nesting of the grouping is exploited and packing of the PDCCH frame to accomplish efficient use is described.
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