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：HK1151643A1

公开(公告)日：2012-02-03

申请号：HK11105687

申请日：2011-06-07

Applicant: QUALCOMM INC

Inventor： PETER GAAL P ,  DP DURGA PRASAD MALLADI ,  ZHANG XIAOXIA

IPC: H04L20060101

Abstract: A method for allocating a sequence resource through randomization is described, the method comprising: producing (918) a cyclic shift offset for use in random assignment of the sequence resource to a mobile device, assigning a sequence resource randomly through implementation of the produced cyclic shift offset, characterized in that the method further comprises: determining a distance between base stations, mobile devices or mobile devices and base stations, inferring (904) if the determined distance is such that interference is expected, determining (908) if the cyclic shift offset should be coordinated among nearby base stations or uncoordinated based upon a result of the inference, as well as corresponding apparatus.

公开(公告)号：HK1142743A1

公开(公告)日：2010-12-10

申请号：HK10108996

申请日：2010-09-21

Applicant: QUALCOMM INC

Inventor： ZHANG XIAOXIA ,  DP DURGA PRASAD MALLADI ,  JUAN MONTOJO J

IPC: H04L20060101

Abstract: Systems and methodologies are described that facilitate selecting frequency for transmitting control channel format indicator (CCFI) data such to identify a related cell. In one example, the CCFI data can be transmitted in an initial portion of frequency (such as an orthogonal frequency division multiplexing (OFDM) symbol) in a time transmit interval (TTI). The CCFI data can be spread across the initial portion of frequency and be shifted to identify the transmitting cell. Additionally, the CCFI data can be scrambled to further identify the cell. The CCFI data can also be utilized to determine structure of subsequent control and/or data channels.

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：HK1137595A1

公开(公告)日：2010-07-30

申请号：HK10105256

申请日：2010-05-28

Applicant: QUALCOMM INC

Inventor： DP DURGA PRASAD MALLADI

IPC: H04L20060101

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：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：HK1130579A1

公开(公告)日：2009-12-31

申请号：HK09109481

申请日：2009-10-14

Applicant: QUALCOMM INC

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

IPC: H04B20060101

Abstract: Facilitating frequency hopping for single carrier, frequency division multiple access (SC-FDMA) transmission is described herein. By way of example, user data transmitted within a transmission allocation unit can be frequency shifted with respect to time based slots of the allocation unit. As a result, frequency hopping can be accomplished while preserving single carrier constraints and a low peak to average power ratio (PAPR). Furthermore, various frequency shifted mechanisms are disclosed to accomplish preservation of single carrier restraints. For example, a scheduler can select between cyclic frequency shifting, transposed frequency shifting, and multiplexing of frequency selective scheduled and frequency hopped data based on an audit of scheduled data for the transmission allocation unit. As a result, the reduction in interference achieved through frequency hopping can be combined with the low PAPR for various data allocation configurations.