公开(公告)号：IN2514CHN2014A

公开(公告)日：2015-07-31

申请号：IN2514CHN2014

申请日：2014-04-02

Applicant: QUALCOMM INC

Inventor： CHEN WANSHI ,  GAAL PETER ,  LUO TAO ,  DAMNJANOVIC JELENA ,  GEIRHOFER STEFAN

IPC: H04W72/04

Abstract: Certain aspects of the present disclosure provide techniques for managing resources utilized for enhanced physical downlink control channel (PDCCH) transmissions.

公开(公告)号：IN3141CHN2014A

公开(公告)日：2015-07-03

申请号：IN3141CHN2014

申请日：2014-04-25

Applicant: QUALCOMM INC

Inventor： CHEN WANSHI ,  LUO TAO ,  DAMNJANOVIC JELENA ,  GAAL PETER ,  MONTOJO JUAN

IPC: H04L1/18 ,  H04L5/00

Abstract: An enhanced physical downlink control channel (e PDCCH) may provide carrier aggregation (CA) enhancements help support new carriers which may not be backwards compatible reduce control channel capacity limitations of coordinated multipoint (CoMP) transmissions and enhance DL MIMO. In wireless communication networks such as Long Term Evolution (LTE) user equipments (UEs) may monitor both a common search space and a UE specific search space in a control region. A search space may comprise a set of channel control element (CCE) locations where a UE may find its PDCCHs. One or more CCEs are used to transmit each PDCCH. Certain aspects provide methods and apparatus for determining a search space comprising a subset of CCEs located on a band edge of available frequency resources and performing a search of the search space to decode at least one PDCCH.

公开(公告)号：CA2930862A1

公开(公告)日：2015-07-02

申请号：CA2930862

申请日：2014-11-05

Applicant: QUALCOMM INC

Inventor： YOO TAESANG ,  MALLIK SIDDHARTHA ,  CHENDAMARAI KANNAN ARUMUGAM ,  DAMNJANOVIC JELENA ,  VAJAPEYAM MADHAVAN SRINIVASAN ,  WANG JUN ,  WEI YONGBIN ,  MALLADI DURGA PRASAD

IPC: H04L5/00 ,  H04L27/26

Abstract: Methods, systems, and devices are described for hierarchical communications and low latency support within a wireless communications system. An eNB and/or a UE may be configured to operate within the wireless communications system which is at least partially defined through a first layer with first layer transmissions having a first subframe type and a second layer with second layer transmissions having a second subframe type. The first subframe type may have a first round trip time (RTT) between transmission and acknowledgment of receipt of the transmission, and the second layer may have a second RTT that is less than the first RTT. Subframes of the first subframe type may be multiplexed with subframes of the second subframe type, such as through time division multiplexing. In some examples symbols of different duration may be multiplexed such that they different symbol durations coexist.

公开(公告)号：IN2485CHN2014A

公开(公告)日：2015-06-26

申请号：IN2485CHN2014

申请日：2014-04-02

Applicant: QUALCOMM INC

Inventor： CHEN WANSHI ,  GAAL PETER ,  WEI YONGBIN ,  MONTOJO JUAN ,  LUO TAO ,  XU HAO ,  GEIRHOFER STEFAN ,  DAMNJANOVIC JELENA ,  DAMNJANOVIC ALEKSANDAR

IPC: H04L5/00

Abstract: Aspects of the present disclosure relate generally to wireless communication systems and more particularly to defining a structure of and enhanced physical downlink control channel (e PDCCH). Certain aspects provide methods and apparatus for determining a search space in which a base station (eNodeB) may transmit an enhanced physical downlink control channel (e PDCCH) wherein the search space comprises one or more fractional portions of frequency time resources of a physical resource block (PRB) pair and attempting to decode the e PDCCH based on the determined search space.

公开(公告)号：CA2926653A1

公开(公告)日：2015-05-07

申请号：CA2926653

申请日：2014-10-24

Applicant: QUALCOMM INC

Inventor： DAMNJANOVIC JELENA ,  CHEN WANSHI

IPC: H04W36/28 ,  H04L5/00

Abstract: Certain aspects of the present disclosure relate to procedures for aggregation in dual connectivity. In one aspect, a wireless device may receive configuration information to communicate with a first network entity (e.g., master eNodeB) through a first primary cell (PCell) of a corresponding group of cells of the first network entity, and with a second network entity (e.g., secondary eNodeB) through a second primary cell (PCellSCG) of a corresponding group of cells of the second network entity. The second network entity may be non-collocated with the first network entity. The wireless device may include an information convergence entity (e.g., PDCP entity) that aggregates the configuration information from the first and second network entities when the wireless device is in communication with both entities. In another aspect, the second network entity may have one of the cells in the corresponding group of cells operate as the second primary cell.

公开(公告)号：CA2513015C

公开(公告)日：2011-11-08

申请号：CA2513015

申请日：2004-01-12

Applicant: QUALCOMM INC

Inventor： JAIN AVINASH ,  DAMNJANOVIC JELENA ,  CHEN TAO

IPC: H04W28/14 ,  H04W28/22 ,  H04W52/00 ,  H04W52/12 ,  H04W52/54 ,  H04W72/04 ,  H04W72/12 ,  H04W84/04

Abstract: A system and method for a time-scalable priority-based scheduler. A flexible scheduling algorithm utilizing variable scheduling durations enables better system capacity utilization. A rate request (408) is transmitted if data arrives in a buffer, data in the buffer exceeds a buffer depth, and sufficient power exists to transmit at the rate requested. A rate assignment (418) responsive to the rate request indicates a scheduled duration and a scheduled rate applicable for the scheduled duration. The scheduled duration is less than or equal to a scheduling period (508). The scheduling period is an interval of time after which a scheduler makes a scheduling decision. The scheduling period is variable and the scheduled duration is variable. The scheduler is preferably applied in a UMTS, CDMA 2000 or HDR-system for reverse link rate scheduling.

公开(公告)号：BRPI0709079A2

公开(公告)日：2011-06-28

申请号：BRPI0709079

申请日：2007-03-26

Applicant: QUALCOMM INC

Inventor： KIM BYOUNG-HOON ,  MALLADI DURGA PRASAD ,  DAMNJANOVIC JELENA

IPC: H04L1/00 ,  H04L7/06 ,  H04L27/26

Abstract: Techniques for efficiently sending channel state information using differential encoding are described. Differential encoding may be performed across space, across frequency, across space and frequency, across space, frequency and time, or across some other combination of dimensions. In one design, spatial state information may be determined for multiple spatial channels on multiple subbands. The spatial channels may correspond to different antennas, different precoding vectors, etc. Channel quality indicator (CQI) values may be obtained for the multiple spatial channels on the multiple subbands. The CQI values may be differentially encoded across the multiple spatial channels and the multiple subbands to obtain differential CQI information. In another design, CQI values may be obtained for multiple spatial channels on the multiple subbands in multiple time intervals and may be differentially encoded across space, frequency and time. The differential CQI information and the spatial state information may be sent as feedback.

公开(公告)号：HK1130588A1

公开(公告)日：2009-12-31

申请号：HK09109480

申请日：2009-10-14

Applicant: QUALCOMM INC

Inventor： KIM BYOUNG-HOON ,  MALLADI DURGA PRASAD ,  DAMNJANOVIC JELENA

IPC: H04L20060101 ,  H04B20060101

Abstract: Techniques for efficiently sending channel state information using differential encoding are described. Differential encoding may be performed across space, across frequency, across space and frequency, across space, frequency and time, or across some other combination of dimensions. In one design, spatial state information may be determined for multiple spatial channels on multiple subbands. The spatial channels may correspond to different antennas, different precoding vectors, etc. Channel quality indicator (CQI) values may be obtained for the multiple spatial channels on the multiple subbands. The CQI values may be differentially encoded across the multiple spatial channels and the multiple subbands to obtain differential CQI information. In another design, CQI values may be obtained for multiple spatial channels on the multiple subbands in multiple time intervals and may be differentially encoded across space, frequency and time. The differential CQI information and the spatial state information may be sent as feedback.

公开(公告)号：DE60327083D1

公开(公告)日：2009-05-20

申请号：DE60327083

申请日：2003-09-10

Applicant: QUALCOMM INC

Inventor： JAIN AVINASH ,  DAMNJANOVIC JELENA ,  CHEN TAO

IPC: H04W28/22 ,  H04B7/005 ,  H04W52/12 ,  H04W52/26 ,  H04W52/34 ,  H04W52/44 ,  H04W52/54 ,  H04W72/12

公开(公告)号：CA2646504A1

公开(公告)日：2007-10-04

申请号：CA2646504

申请日：2007-03-26

Applicant: QUALCOMM INC

Inventor： KIM BYOUNG-HOON ,  MALLADI DURGA PRASAD ,  DAMNJANOVIC JELENA

IPC: H04L1/00 ,  H04B7/06 ,  H04L27/26

Abstract: Techniques for efficiently sending channel state information using differential encoding are described. Differential encoding may be performed across space, across frequency, across space and frequency, across space, frequency and time, or across some other combination of dimensions. In one design, spatial state information may be determined for multiple spatial channels on multiple subbands. The spatial channels may correspond to different antennas, different precoding vectors, etc. Channel quality indicator (CQI) values may be obtained for the multiple spatial channels on the multiple subbands. The CQI values may be differentially encoded across the multiple spatial channels and the multiple subbands to obtain differential CQI information. In another design, CQI values may be obtained for multiple spatial channels on the multiple subbands in multiple time intervals and may be differentially encoded across space, frequency and time. The differential CQI information and the spatial state information may be sent as feedback.