Methods and apparatus for power allocation on a reverse link power control channel of a communication system.

    公开(公告)号:HK1042796A1

    公开(公告)日:2002-08-23

    申请号:HK02104357

    申请日:2002-06-11

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus that determines how much power to allocate to each of a plurality of reverse link power control (RLPC) Channels to be transmitted from a base station, based upon data rate control (DRC) messages transmitted to the base station. Historical information is used to determine the quality of the Forward Link over which the RLPC is to be transmitted. If the history of the DRCs received indicates that the remote station to which the RLPC Channel is to be directed has not transmitted a DRC recently, then the base station allocates power to the RLPC Channels based upon information provided to the base station in DRCs that were received by the base station, but that were directed to other base stations. Accordingly, the base station can allocate power among the RLPC Channels without having received explicit information as to the quality of the Forward Link between the base station and every remote station intended to receive the information on the RLPC Channels.

    Method and apparatus for variable and fixed forwa rd link rate control in a mobile radio communication system.

    公开(公告)号:HK1042007A1

    公开(公告)日:2002-07-26

    申请号:HK02103578

    申请日:2002-05-13

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus for controlling a data rate associated with the transmission of information from a base station (100) to a mobile station (300) in a mobile radio communication system. The mobile station (300) alternately receives information from a basestation (100) either in a variable rate mode or a fixed rate mode. The transmission rate from a base station (600) in the variable rate mode varies between successive data transmit intervals, and the transmission rate from a base station in the fixed rate mode remains fixed between successive data transmit intervals. Data is transmitted from a first base station (400) to the mobile station in the variable rate mode until the first base station is unable to receive the variable data rate control information from the mobile station. When the first base station (400) is unable to receive the variable data rate control information from the mobile station (300), the mobile station (300) attempts to remain in the variable rate mode by searching for a second base station that will support data transmissions to the mobile station (300) in the variable rate mode and, if the mobile station (300) is able to locate the second base station that will support data transmissions to the mobile station in the variable rate mode, then the second base station transmits data to the mobile station in the variable rate mode and transmissions from the first base station to the mobile station (300) in the variable rate mode terminate. If the mobile station is unable to locate the second base station that will support data transmissions to the mobile station in the variable rate mode, data is transmitted to the mobile station (300) from either the first base station (400) or a different base station in the fixed rate mode.

    A METHOD AND AN APPARATUS FOR A QUICK RETRANSMISSION OF SIGNALS IN A COMMUNICATION SYSTEM

    公开(公告)号:CA2406216A1

    公开(公告)日:2001-10-25

    申请号:CA2406216

    申请日:2001-04-13

    Applicant: QUALCOMM INC

    Abstract: A transmitting terminal, transmits signals in a form of packets to a receivi ng terminal, if the packet was intended for the receiving terminal, if so, the receiving terminal demodulates the packet. The receiving terminal then computes a quality metric of the packet, and compares the computed quality metric with a quality metric contained in the packet. If the quality metrics match, the packet is forwarded for further processing. If the quality metric s fail to match, the receiving terminal sends a request for retransmission of the packet. The transmitting terminal determines which packet needs to be retransmitted based on the request for retransmission. If delivery of the packet in accordance with the aforementioned description fails, retransmissi on in accordance with conventional sequence-number-based schemes, e.g., radio link protocol, is attempted.

    Methods and apparatus for power allocation on a reverse link power control channel of a communication system

    公开(公告)号:AU3527400A

    公开(公告)日:2000-09-28

    申请号:AU3527400

    申请日:2000-03-13

    Applicant: QUALCOMM INC

    Abstract: A method and apparatus that determines how much power to allocate to each of a plurality of reverse link power control (RLPC) Channels to be transmitted from a base station, based upon data rate control (DRC) messages transmitted to the base station. Historical information is used to determine the quality of the Forward Link over which the RLPC is to be transmitted. If the history of the DRCs received indicates that the remote station to which the RLPC Channel is to be directed has not transmitted a DRC recently, then the base station allocates power to the RLPC Channels based upon information provided to the base station in DRCs that were received by the base station, but that were directed to other base stations. Accordingly, the base station can allocate power among the RLPC Channels without having received explicit information as to the quality of the Forward Link between the base station and every remote station intended to receive the information on the RLPC Channels.

    METHOD AND APPARATUS FOR FORWARD POWER CONTROL IN A COMMUNICATION SYSTEM
    98.
    发明申请
    METHOD AND APPARATUS FOR FORWARD POWER CONTROL IN A COMMUNICATION SYSTEM 审中-公开
    用于通信系统中前向功率控制的方法和装置

    公开(公告)号:WO02054617A3

    公开(公告)日:2003-06-19

    申请号:PCT/US0150641

    申请日:2001-12-27

    Applicant: QUALCOMM INC

    Abstract: In a data communication system capable of variable rate transmission, the data rate is determined by the largest C/I measurement of the forward link signals as measured at the Access Terminal (6). In one embodiment, the date transmission is scheduled based on an Access Terminal (6) initiated forward power control, which reduces forward link rate quantization loss due to excess transmit power. The Access Terminal (6) reports to the Access Point (4) the excess C/I estimate for the selected rate. The Access Point (4) then reduces its transmit power by an appropriate amount when serving that Access Terminal (6). In another embodiment, the data transmission is scheduled based on an Access Point (4) initiated forward power control. The Access Point (4) varies its transmit power over time either randomly or in synchronism with neighboring Access Point (4) in the communication system, which enables an increase in the throughput achieved by users that receive a significant amount of interference.

    Abstract translation: 在能够进行可变速率传输的数据通信系统中,数据速率由在接入终端(6)处测量的正向链路信号的最大C / I测量来确定。 在一个实施例中,基于接入终端(6)发起的正向功率控制来调度日期传输,其减少由于超量发射功率引起的前向链路速率量化丢失。 接入点(6)向接入点(4)报告所选择率的过量C / I估计。 接入点(4)然后在为该接入终端(6)服务时将其发射功率降低适当的量。 在另一个实施例中,基于接入点(4)启动的正向功率控制来调度数据传输。 接入点(4)随时随地或与通信系统中的相邻接入点(4)同步地改变其发射功率,这使得能够增加接收到大量干扰的用户实现的吞吐量。

    METHOD AND APPARATUS FOR FAST CLOSED-LOOP RATE ADAPTATION IN A HIGH RATE PACKET DATA TRANSMISSION
    99.
    发明申请
    METHOD AND APPARATUS FOR FAST CLOSED-LOOP RATE ADAPTATION IN A HIGH RATE PACKET DATA TRANSMISSION 审中-公开
    用于高速分组数据传输中快速闭环速率适应的方法和装置

    公开(公告)号:WO0189162A2

    公开(公告)日:2001-11-22

    申请号:PCT/US0115381

    申请日:2001-05-11

    Applicant: QUALCOMM INC

    CPC classification number: H04W16/02 H04W28/04 H04W28/18

    Abstract: In a high data rate communication system capable of variable rate transmission, an open loop rate control can be adjusted with a closed loop rate control to maximize throughput. An access point generates interleaved multi-slot packets that allow an access terminal to transmit indicator messages to the access point in accordance with recently received data carried within slots of the multi-slot packets.

    Abstract translation: 在能够进行可变速率传输的高数据速率通信系统中,可以通过闭环速率控制来调节开环速率控制以最大化吞吐量。 接入点产生交错多时隙分组,其允许接入终端根据在多时隙分组的时隙内承载的最近接收的数据向接入点发送指示符消息。

Patent Agency Ranking