公开(公告)号：DK2559182T3

公开(公告)日：2015-01-12

申请号：DK11717392

申请日：2011-04-13

Applicant: QUALCOMM INC

Inventor： BARBIERI ALAN ,  JI TINGFANG ,  AGASHE PARAG ARUN ,  WEI YONGBIN ,  YOO TAESANG ,  LUO TAO ,  VAJAPEYAM MADHAVAN SRINIVASAN ,  XU HAO ,  DAMNJANOVIC ALEKSANDAR

IPC: H04W24/00 ,  H04L1/00 ,  H04W28/04 ,  H04W28/16

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

IPC: H04B7/06 ,  H04B7/04 ,  H04L1/00 ,  H04L1/06

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.

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.

公开(公告)号：ZA201208165B

公开(公告)日：2013-06-26

申请号：ZA201208165

申请日：2012-10-30

Applicant: QUALCOMM INC

Inventor： BARBIERI ALAN ,  AGASHE PARAG ARUN ,  YOO TAESANG ,  VAJAPEYAM MADHAVAN SRINIVASAN ,  DAMNJANOVIC ALEKSANDAR ,  JI TINGFANG ,  WEI YONGBIN ,  LUO TAO ,  XU HAO

IPC: H04L20060101 ,  H04W20090101

公开(公告)号：AU2011240585A1

公开(公告)日：2012-11-01

申请号：AU2011240585

申请日：2011-04-13

Applicant: QUALCOMM INC

Inventor： BARBIERI ALAN ,  JI TINGFANG ,  AGASHE PARAG ARUN ,  WEI YONGBIN ,  YOO TAESANG ,  LUO TAO ,  VAJAPEYAM MADHAVAN SRINIVASAN ,  XU HAO ,  DAMNJANOVIC ALEKSANDAR

IPC: H04L1/00 ,  H04W28/06 ,  H04W28/26 ,  H04W48/08 ,  H04W72/12

Abstract: Techniques for estimating and reporting channel quality indicator (CQI) are disclosed. Neighboring base stations may cause strong interference to one another and may be allocated different resources, e.g., different subframes. A UE may observe different levels of interference on different resources. In an aspect, the UE may determine a CQI for resources allocated to a base station and having reduced or no interference from at least one interfering base station. In another aspect, the UE may determine multiple CQI for resources of different types and associated with different interference levels. For example, the UE may determine a first CQI based on at least one first subframe allocated to the base station and having reduced or no interference from the interfering base station(s). The UE may determine a second CQI based on at least one second subframe allocated to the interfering base station(s).

公开(公告)号：CA2795355A1

公开(公告)日：2011-10-20

申请号：CA2795355

申请日：2011-04-15

Applicant: QUALCOMM INC

Inventor： YOO TAESANG ,  LUO TAO ,  LUO XILIANG

IPC: H04B17/00 ,  H04L5/00

Abstract: A method for communicating in an advanced long term evolution (LTE-A) network using common reference signal (CRS) resources associated with different interference levels due to resource partitioning is disclosed. Signals are received from an eNodeB indicating a subset of CRS resources for radio link monitoring (RLM) and/or reference signal received power (RSRP) measuring. The subset of CRS resources includes the CRS resources expected to have lower interference from the interfering eNodeBs. RLM and/or RSRP measurements are performed based on the indicated subset.

公开(公告)号：CA2709523A1

公开(公告)日：2009-07-16

申请号：CA2709523

申请日：2009-01-07

Applicant: QUALCOMM INC

Inventor： KIM BYOUNG-HOON ,  YOO TAESANG

IPC: H04B7/04 ,  H04B7/06 ,  H04L1/00

Abstract: Systems and methodologies are described that facilitate creating a unified format that can accommodate various MIMO modes. The unified format can employed with a single payload size that includes uplink control information for each available MIMO mode. By packaging the payload with uplink control information related to each MIMO mode, the uplink control information can be utilized with any suitable or available MIMO mode.

公开(公告)号：NO20092159L

公开(公告)日：2009-06-03

申请号：NO20092159

申请日：2009-06-03

Applicant: QUALCOMM INC

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

IPC: H04B7/06 ,  H04L1/06

公开(公告)号：MX2009004838A

公开(公告)日：2009-05-15

申请号：MX2009004838

申请日：2007-11-06

Applicant: QUALCOMM INC

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

IPC: H04B7/06 ,  H04L1/06

Abstract: Se describen técnicas para soportar transmisión MIMO con permutación de capa. En un aspecto, pueden ser generadas palabras de código múltiples para la transmisión desde antenas múltiples (por ejemplo, antenas virtuales), con el número de palabras de código siendo menor que el número de antenas. Cada palabra de código puede ser trazada a través de las antenas múltiples. Pueden ser generadas dos palabras de código. Para el rango 3, la primera palabra de código puede ser trazada a una capa (o a una antena sobre cada subportador) y la segunda palabra de código puede ser trazada a dos capas (o dos antenas sobre cada subportador). Para el rango 4, cada palabra de código puede ser trazada a dos capas. En otro aspecto, puede determinarse una CQI base indicativa de una calidad de señal promedio. También puede ser determinada una delta CQI indicativa de mejoras sobre la calidad de señal promedio. En otro aspecto más, la selección puede ser efectuada con diferentes factores de penalización para diferentes rangos o número de palabras de código.

公开(公告)号：CA2682808A1

公开(公告)日：2008-11-06

申请号：CA2682808

申请日：2008-04-25

Applicant: QUALCOMM INC

Inventor： KIM BYOUNG-HOON ,  YOO TAESANG ,  ZHANG XIAOXIA

IPC: H04B7/06 ,  H04B7/04

Abstract: Systems and methodologies are described that facilitate applying cyclic d elay diversity (CDD) and precoding to wireless transmissions. In particular, data vectors to be transmitted to a number of receive antennas of a receive r can be transformed to a virtual antenna domain. CDD can be applied to this domain followed by precoding to allow the benefits of precoding to remain t hough CDD is applied. In this regard, the resulting signals can be transmitt ed without pouring transmission energy into null spaces unreachable by recei ving devices.