Synchronized broadcast/multicast communication

    公开(公告)号:AU2010202417B2

    公开(公告)日:2013-09-05

    申请号:AU2010202417

    申请日:2010-06-10

    Applicant: QUALCOMM INC

    Abstract: Synchronized broadcast transmits a same broadcast content using a same waveform from multiple transmitters. Transmitters each apply a same spreading code for broadcast transmissions. In 5 a spread-spectrum communication system having a time division multiplexed forward link, a synchronized broadcast transmission is inserted into a broadcast slot. One embodiment employs an Orthogonal Frequency Divisional Multiplex (OFDM) waveform for the synchronized broadcast. An OFDM receiver is then used to process the received synchronized broadcast transmission. An alternate embodiment implements a broadcast Pseudo-random Noise (PN) code for use by multiple 10 transmitters. An equalizer is then employed to estimate the synchronized broadcast transmission. z co C0 C)-J c I L m C) 0 C)o cL L Uo 0z _ HL F-~

    23.
    发明专利
    未知

    公开(公告)号:AT557557T

    公开(公告)日:2012-05-15

    申请号:AT10008593

    申请日:2006-09-22

    Applicant: QUALCOMM INC

    Inventor: BLACK PETER JOHN

    Abstract: Embodiments disclosed herein relate to a method and apparatus for grouping a plurality of pilot signals into one or more pilot groups, each pilot group being identified by a plurality of parameters; and selecting a representative pilot signal from each pilot group for pilot strength reporting.

    PILOT GROUPING AND ROUTE PROTOCOLS IN MULTI-CARRIER COMMUNICATION SYSTEMS

    公开(公告)号:SG158127A1

    公开(公告)日:2010-01-29

    申请号:SG2009082249

    申请日:2006-09-22

    Applicant: QUALCOMM INC

    Inventor: BLACK PETER JOHN

    Abstract: Embodiments disclosed herein relate to methods and systems for pilot grouping, route protocols, and scheduling in multi-carrier communication systems. In an embodiment, an access terminal may group a plurality of pilot signals characterized by different frequencies into one or more pilot groups, each pilot grouping being identified by a plurality of parameters (e.g., a PN offset and a group ID). Each pilot group may include pilot signals having substantially the same coverage area. The access terminal may further select a representative pilot signal from each pilot group for pilot strength reporting. The access terminal may also use the pilot grouping for effective set management.

    METHOD AND APPARATUS FOR DISCONTINUOUS RECEPTION IN USER EQUIPMENT FOR POWER SAVINGS

    公开(公告)号:CA2866163C

    公开(公告)日:2020-08-18

    申请号:CA2866163

    申请日:2013-03-19

    Applicant: QUALCOMM INC

    Abstract: The present aspects relate to methods and apparatuses to power off a modem receiver or components of the receiver at a time prior to the end of the frame based on data in the frame being received and properly decoded before the end of the frame. In an aspect, the apparatuses and methods provide power saving in a wireless device, and include receiving data within a frame at a user equipment, determining whether all payload packet data has been correctly decoded prior to an end of the frame, and powering down a receiver component for a portion of a remainder of the frame in response to determining that all payload packet data has been correctly decoded and where a first time period to a next scheduled overhead bit transmission period of a slot in the frame is greater than a second time period corresponding to a warm-up period for the receiver component.

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