中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

316 records (took 0.028 seconds)

    SCHEDULING REQUEST COLLECTION AFTER A DISCONTINUOUS RECEPTION PERIOD
    192.
    发明专利
    SCHEDULING REQUEST COLLECTION AFTER A DISCONTINUOUS RECEPTION PERIOD 未知

    公开(公告)号：CA3016569A1

    公开(公告)日：2017-10-12

    申请号：CA3016569

    申请日：2017-03-27

    Applicant: QUALCOMM INC

    Inventor： ISLAM MUHAMMAD NAZMUL ,  LI JUNYI ,  SUBRAMANIAN SUNDAR ,  CEZANNE JUERGEN ,  LUO TAO ,  SAMPATH ASHWIN

    IPC: H04W72/12

    Abstract: A wireless device configured for discontinuous reception (DRX) may and operating in a system that uses directional beamforming may identify a random access time period after awaking from a DRX sleep mode. The device may then transmit a scheduling request during the random access time period. In some cases, the device may transmit the scheduling request using frequency resources also associated with random access transmissions. In other cases, the device may utilize resources that are not associated with random access. The determination of which frequency resources are used may depend on the length of the DRX. That is, if a device has been in a sleep mode for a long time, it may use random access frequency resources that are associated with a more robust transmission configuration.

    BEAM REFERENCE SIGNAL FOR BROADCAST DECODING
    193.
    发明专利
    BEAM REFERENCE SIGNAL FOR BROADCAST DECODING 未知

    公开(公告)号：CA3015533A1

    公开(公告)日：2017-10-05

    申请号：CA3015533

    申请日：2017-03-29

    Applicant: QUALCOMM INC

    Inventor： CEZANNE JUERGEN ,  SUBRAMANIAN SUNDAR ,  ISLAM MUHAMMAD NAZMUL ,  SADIQ BILAL ,  SAMPATH ASHWIN ,  LI JUNYI

    IPC: H04B7/06 ,  H04L5/00

    Abstract: Methods, systems, and devices for wireless communication are described. A base station may transmit a subframe that includes physical broadcast channel (PBCH) signals interspersed within beam reference signals, where the subframe may be a synchronization subframe including one or more synchronization signals. In some cases, the beam reference signals from different antenna ports may be code division multiplexed or frequency division multiplexed over multiple frequency tones. A user equipment (UE) may use the beam reference signals to generate channel estimates for the PBCH signals. In some cases, orthogonal cover codes for code division multiplexed signals may be selected to facilitate generation of channel estimates for PBCH signals transmitted using nearby frequency tones.

    Esquema de transmisión robusta para redes inalámbricas
    194.
    发明专利
    Esquema de transmisión robusta para redes inalámbricas 未知

    公开(公告)号：ES2574955T3

    公开(公告)日：2016-06-23

    申请号：ES07797480

    申请日：2007-05-15

    Applicant: QUALCOMM INC

    Inventor： SAMPATH ASHWIN

    IPC: H04L5/02 ,  H04B7/26 ,  H04W16/12 ,  H04W16/14

    Abstract: Un procedimiento (300) para usar un protocolo de transmisión robusta en un punto de acceso en un entorno de comunicaciones inalámbricas (200), que comprende las etapas de: definir (302, 304) recursos de periodo de tiempo de transmisión robusta, RTTP, para al menos un punto de acceso (202) según las condiciones de interferencia, donde dichos recursos RTTP identifican la ubicación de al menos una ranura RTTP (702); ejecutar (306) un protocolo de ortogonalización para mitigar las interferencias realizando transmisiones perturbadoras total o parcialmente ortogonales durante una o más ranuras RTTP (702), donde las ranuras RTTP están definidas como candidatas potenciales durante las cuales puede ejecutarse el protocolo de ortogonalización, donde los recursos RTTP comprenden un conjunto de al menos una portadora de entre las portadoras disponibles para ejecutar el protocolo de ortogonalización durante la al menos una ranura RTTP; y ejecutar (308) un protocolo de reutilización universal de frecuencias con todas las portadoras disponibles durante ranuras que no son RTTP (704) para transmisiones no restringidas.

    BEACON-BASED CONTROL CHANNELS
    200.
    发明专利
    BEACON-BASED CONTROL CHANNELS 未知

    公开(公告)号：CA2703104C

    公开(公告)日：2013-07-16

    申请号：CA2703104

    申请日：2008-09-04

    Applicant: QUALCOMM INC

    Inventor： PALANKI RAVI ,  AGRAWAL AVNEESH ,  GOROKHOV ALEXEI ,  KHANDEKAR AAMOD ,  SAMPATH ASHWIN ,  LIN DEXU

    IPC: H04L5/00

    Abstract: Systems and methodologies are described that facilitate transmitting control information in wireless networks. Portions of bandwidth can be blanked for transmitting control information, and the control information transmitters can utilize beacon symbols to convey the control information. In this regard, interference is mitigated with respect to data transmissions over the control information bandwidth. Selected frequencies of the beacon symbols in a codeword can be used to indicate the control information. The codewords can be encoded with an error control code to provide redundancy for decoding in the presence of some interference.

Patent Agency Ranking