81.
    发明专利
    未知

    公开(公告)号:FI117842B

    公开(公告)日:2007-03-15

    申请号:FI20001071

    申请日:2000-05-08

    Applicant: QUALCOMM INC

    Abstract: An efficient retransmission of data using symbol accumulation wherein the packet received in error is retransmitted at a lower energy-per-bit level concurrently in the same frame with the new packet. The destination device receives the data transmission and retransmission, demodulate the signal, and separates the received data into the new and retransmitted packet. The destination device then accumulates the energy of the retransmitted packet with the energy already accumulated for the packet received in error and decodes the accumulated packet. The accumulation of the additional energy provided by the subsequent retransmissions improves the probability of a correct decoding. The throughput rate can be improved since the packet received in error is retransmitted concurrently with the transmission of the new data packet. The capacity is maximized since the retransmission of the packet received in error is at a lower energy level than that of the new packet.

    Apparatus, system, and method for managing reverse link communication

    公开(公告)号:AU2007200167A1

    公开(公告)日:2007-02-01

    申请号:AU2007200167

    申请日:2007-01-16

    Applicant: QUALCOMM INC

    Abstract: In accordance with an exemplary embodiment of the invention, an apparatus, system, and method efficiently manage reverse link resources by allowing a mobile station to select between transmitting a payload a standard power level and transmitting a smaller payload at a boosted power level. The mobile station, therefore, can autonomously select a QoS (Quality of Service) level for physical layer packets. Based on reverse link transmission information received from a base station, the mobile station derives a reverse link transmission guideline defining the power levels and associated payloads for at least a standard service and boosted service. The mobile station selects a reverse link transmission power level from a plurality of power levels including at least a standard reverse link transmission power level associated with a standard payload size and a boosted reverse link transmission power level associated with a boosted payload size where the standard payload size is greater than the boosted payload size.

    85.
    发明专利
    未知

    公开(公告)号:BR0209169A

    公开(公告)日:2006-05-23

    申请号:BR0209169

    申请日:2002-04-24

    Applicant: QUALCOMM INC

    Abstract: Rather than attaching a preamble to a data traffic subpacket, a preamble channel is transmitted along with a traffic channel. An ARQ channel is established on the reverse link in response to a received transmission on the preamble channel and the traffic channel. In accordance with the type of ARQ signal received (622, 626, 627, 631), or the lack of receipt thereof (630, 635), a scheduling element in the base station alters an already existing transmission schedule for transmitting old data traffic or new data traffic.

    86.
    发明专利
    未知

    公开(公告)号:NO20060009L

    公开(公告)日:2006-02-27

    申请号:NO20060009

    申请日:2006-01-02

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus provides for efficient data rate control and power control processes by transmitting a primary and a secondary pilot channel associated with a data channel in the reverse (uplink) link. The primary and secondary pilot channels are used for decoding the data. A ratio of power levels of the primary and secondary pilot channels is based on at least one of the data rate and payload size of the data channel. It is determined whether the transmission of the primary pilot channel and the secondary pilot channel associated with the data channel is necessary based on comparing one of the data rate and the payload size of the channel in the reverse link to a predetermined value. The power level of the primary pilot channel is maintained independent of at least one of data rate and payload size of the data channel. The power level of the secondary pilot channel may be adjusted based on at least one of data rate and payload size of the data channel.

    88.
    发明专利
    未知

    公开(公告)号:BRPI0407567A

    公开(公告)日:2006-02-14

    申请号:BRPI0407567

    申请日:2004-02-17

    Applicant: QUALCOMM INC

    Abstract: An apparatus includes a first encoder for receiving a plurality of symbol streams for respective ones of a plurality of mobile stations and encoding each of the symbol streams with one of a plurality of covering sequences to form a plurality of covered sequences. The apparatus further includes a summer for summing the plurality of covered sequences to form a first Code Division Multiplexed (CDM) signal. In addition, the apparatus includes a second encoder for covering the first CDM signal with a covering sequence to form a first covered CDM signal. A system and method for multiplexing plurality of symbol streams are also provided.

    PILOT BASED TRANSMIT POWER CONTROL
    89.
    发明专利

    公开(公告)号:CA2278927C

    公开(公告)日:2006-01-24

    申请号:CA2278927

    申请日:1998-01-27

    Applicant: QUALCOMM INC

    Abstract: A novel and improved method for performing transmit power control is described. A signal is transmitted at a transmit power and includes a traffic channel transmitted at a traffic channel transmit power, and a pilot channel transmitting at a pilot channel (70) transmit power. The receive energy of the pilot channel is measured, and a decrease power control command (121) is generated when the receive energy is greater than a receive energy threshold. If the receive energy is less than the receive energy threshold, an increase power control command (121) is generated. The power control command (121) is transmitted t o the system generating the signal.

    DEMULTIPLEXER FOR CHANNEL INTERLEAVING

    公开(公告)号:HK1068742A1

    公开(公告)日:2005-04-29

    申请号:HK05100876

    申请日:2002-04-25

    Applicant: QUALCOMM INC

    Abstract: A demultiplexer (402) for channel interleaving in communications systems with multiple carriers and/or transmitter diversity includes a distribution module (700) that distributes data bits in succession to successive transmitter antennas, and a switching module coupled to the distribution module. The distribution module (700) routes one data bit to each antenna such that no data bit is routed to the same antenna as the previous data bit. The switching module controls the distribution module (700) to skip an antenna in the routing process once each time a predefined number of data bits has been routed. Alternatively, the switching module may control the distribution module to repeat an antenna in the routing process once each time a predefined number of data bits has been routed. The transmitter antennas may, in the alternative, be different carrier frequency bands.

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