公开(公告)号：HK1165124A1

公开(公告)日：2012-09-28

申请号：HK12105735

申请日：2012-06-13

Applicant: QUALCOMM INC

Inventor： BYOUNG-HOON KIM B ,  YONGBIN WEI ,  AMIR DABBAGH A

IPC: H04L20060101

公开(公告)号：HK1168948A1

公开(公告)日：2013-01-11

申请号：HK12109606

申请日：2012-09-28

Applicant: QUALCOMM INC

Inventor： BYOUNG-HOON KIM B ,  WEI YONGBIN ,  AMIR DABBAGH A

IPC: H04B20060101 ,  H04J20060101 ,  H04L20060101

Abstract: Techniques for multiplexing pilots in a wireless transmission are described. In one aspect, a transmitter station generates multiple pilot sequences for multiple transmit antennas, with each pilot sequence comprising pilot symbols sent in the time domain on a different set of subcarriers. The transmitter station further generates multiple pilot transmissions for the transmit antennas based on the pilot sequences. In another aspect, a transmitter station generates multiple pilot sequences for multiple transmit antennas based on frequency-domain code division multiplexing (FD-CDM) of a Chu sequence defined by a transmitter-specific value. The transmitter station further generates multiple pilot transmissions for the transmit antennas based on the pilot sequences. In yet another aspect, a transmitter station generates multiple pilot transmissions for multiple transmit antennas based on a first multiplexing scheme and generates multiple data transmissions based on a second multiplexing scheme that is different from the first multiplexing scheme.

公开(公告)号：HK1138687A1

公开(公告)日：2010-08-27

申请号：HK10105260

申请日：2010-05-28

Applicant: QUALCOMM INC

Inventor： DP DURGA PRASAD MALLADI ,  BYOUNG-HOON KIM B ,  LUO TAO

IPC: H04L20060101 ,  H04J20060101

Abstract: Systems and methodologies are described that facilitate searches for a cell in a wireless communication environment. A mobile device can employ a searcher that can detect timing information respectively associated with PSCs and cells to determine the cell with the highest correlation. The searcher can detect SSCs, which can include detecting associated phase information, to determine the SSC with the highest correlation, CP length, and/or other information to facilitate identifying a desired cell having the strongest signal to establish communication between the mobile device and the desired cell. PSCs respectively associated with cells can have different positions in the symbol sequences, and SSCs can respectively be phase shifted at different angles to facilitate detection and identification of a cell(s), where a PSC can be utilized as a phase reference by the associated SSC.

公开(公告)号：HK1134596A1

公开(公告)日：2010-04-30

申请号：HK10102525

申请日：2010-03-11

Applicant: QUALCOMM INC

Inventor： JUAN MONTOJO J ,  BYOUNG-HOON KIM B ,  DP DURGA PRASAD MALLADI ,  LUO TAO

IPC: H04L20060101 ,  H04J20060101

公开(公告)号：HK1143670A1

公开(公告)日：2011-01-07

申请号：HK10110203

申请日：2010-10-29

Applicant: QUALCOMM INC

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

IPC: H04B20060101

Abstract: Techniques for sending traffic data and control information in a wireless communication system are described. In one design, a transmitter (e.g., a Node B or a UE) may perform beamforming to send traffic data on M layers based on a precoding matrix, where M may be one or greater. The transmitter may also perform beamforming to send control information on up to M layers based on the same precoding matrix used for the traffic data. The transmitter may send the beamformed traffic data on a first physical channel and may send the beamformed control information on a second physical channel. The transmitter may multiplex the beamformed traffic data and the beamformed control information using time division multiplexing (TDM) or frequency division multiplexing (FDM).

公开(公告)号：HK1138710A1

公开(公告)日：2010-08-27

申请号：HK10105218

申请日：2010-05-28

Applicant: QUALCOMM INC

Inventor： BYOUNG-HOON KIM B ,  DP DURGA PRASAD MALLADI ,  DN DUNG N DOAN

IPC: H04W20090101 ,  H04W28/18

Abstract: Systems, methodologies, and devices are described that can facilitate bandwidth efficient non-coherent signaling for uplink control channel transmissions. A communication device (e.g., a mobile device, base station) can be configured to utilize or generate a set of complex orthogonal codewords to facilitate transmission of control channel information using non-coherent signaling in a bandwidth efficient manner. A complex orthogonal codeword set can comprise a first subset of codewords where such codewords have a desirable cross-correlation property and another subset(s) of codewords that can include expurgated codewords, where the expurgated codewords can include discarded codewords and/or codeword pairs that produce a worst-case cross-correlation property. The codeword set and subsets are determined based at least in part on a predefined codeword criterion. A portion of the discarded codewords can be used for other purposes, such as erasure decoding, interference-level estimation, and/or multi-mode control channel operation.

公开(公告)号：HK1138685A1

公开(公告)日：2010-08-27

申请号：HK10105220

申请日：2010-05-28

Applicant: QUALCOMM INC

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

IPC: H04L20060101 ,  H04B20060101

Abstract: A method for wireless communication, comprising: selecting a delay from among a plurality of delays; sending the selected delay from a first entity to a second entity; and exchanging data with the second entity with cyclic delay diversity based on the selected delay.

公开(公告)号：HK1134180A1

公开(公告)日：2010-04-16

申请号：HK10101190

申请日：2010-02-04

Applicant: QUALCOMM INC

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

IPC: H04L20060101

Abstract: An apparatus that operates in a wireless communication environment with orthogonal frequency division multiple access (OFDMA) is provided. The apparatus includes multiple detection components that acquire simultaneously multiple cell information in multiple subcarrier intervals, a processor configured to process the multiple cell information, and a memory coupled to the processor for storing data.