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    METHOD AND APPARATUS FOR OPTIMAL REDUNDANCY VERSION (RV) SELECTION FOR UMTS HSDPA TRANSMISSIONS
    1.
    发明公开
    METHOD AND APPARATUS FOR OPTIMAL REDUNDANCY VERSION (RV) SELECTION FOR UMTS HSDPA TRANSMISSIONS 审中-公开
    方法及装置：用于UMTS HSDPA转拨选择最佳的冗余版本（RV）

    公开(公告)号：EP2074733A4

    公开(公告)日：2014-06-11

    申请号：EP07794151

    申请日：2007-08-09

    Applicant: ERICSSON TELEFON AB L M

    Inventor： CHENG JUNG-FU

    IPC: H04L1/18 ,  H04L1/00

    CPC classification number: H04L1/1819 ,  H04L1/0003 ,  H04L1/0013 ,  H04L1/08 ,  H04L1/1825

    Abstract: A method and apparatus for identifying optimal redundancy version (RV) sequences for HSDPA transmissions based on extensive search. In a first embodiment of the present invention, in HSDPA QPSK mode, the transmitter retransmits according to the RV sequence [0 7 3 4 1 6 5 2] and in HSDPA 16QAM mode, the transmitter retransmits according to the RV sequence [0 1 3 4 5 6 7 1]. In a second embodiment of the present invention, in HSDPA QPSK mode, the transmitter retransmits according to the RV sequence [0 7 3 4 1 6 5 2] if the initial coding rate is greater than or equal to 0.5 and [0 4 3 6 2 1 6 2] if the initial coding rate is less than 0.5. In HSDPA 16QAM mode, the transmitter retransmits according to the RV sequence [0 1 3 4 5 6 7 1] if the initial coding rate is greater than or equal to 0.5 and the transmitter retransmits according to the RV sequence [0 4 5 6 0 4 5 6] if the initial coding rate is less than 0.5. In a third embodiment of the present invention, the transmitter retransmits according to the RV sequence according to each specific initial coding rate. In a fourth embodiment of the present invention, the transmitter retransmits according to the RV sequence according to a specific initial coding rate and a specific mother code rate. An SNR tracking algorithm is provided in conjunction with the optimal sequences for robust HARQ operations.

    SLIDING WINDOW METHOD AND APPARATUS FOR SOFT INPUT/SOFT OUTPUT PROCESSING
    7.
    发明公开
    SLIDING WINDOW METHOD AND APPARATUS FOR SOFT INPUT/SOFT OUTPUT PROCESSING 审中-公开
    推拉窗的方法和设备SOFT输入/输出软处理

    公开(公告)号：EP2077031A4

    公开(公告)日：2012-09-05

    申请号：EP07835286

    申请日：2007-10-03

    Applicant: ERICSSON TELEFON AB L M

    Inventor： CHENG JUNG-FU

    IPC: H03M13/39 ,  H03M13/29

    CPC classification number: H04M15/00 ,  H03M13/2957 ,  H03M13/3905 ,  H03M13/3972 ,  H03M13/413 ,  H04B2201/709727

    Abstract: In one or more embodiments, a method of processing a soft value sequence according to an iterative soft-input-soft-output (SISO) algorithm comprises carrying out sliding-window processing of the soft value sequence in a first iteration using first window placements and in a second iteration using second window placements, and varying the window placements between the first and second iterations. In at least one embodiment, a communication receiver circuit is configured to carry out iterative SISO processing, wherein it processes a soft value sequence using sliding windows, and wherein it varies window placements between one or more iterations. The communication receiver circuit comprises, for example, all or part of a turbo decoding circuit or other type of iterative block decoding circuit, an equalization and decoding circuit, a soft demodulation and decoding circuit, a multi-user detection and decoding circuit, or a multiple-input-multiple-output detection and decoding circuit.

    PAGING PROCEDURES USING AN ENHANCED CONTROL CHANNEL
    8.
    发明公开
    PAGING PROCEDURES USING AN ENHANCED CONTROL CHANNEL 有权
    寻呼基于更宽CONTROL CHANNEL

    公开(公告)号：EP2952049A4

    公开(公告)日：2016-09-07

    申请号：EP13873491

    申请日：2013-01-30

    Applicant: ERICSSON TELEFON AB L M

    Inventor： LARSSON DANIEL ,  FRENNE MATTIAS ,  CHENG JUNG-FU ,  BALDEMAIR ROBERT

    IPC: H04L5/00 ,  H04W68/02

    CPC classification number: H04L5/0053 ,  H04L5/001 ,  H04L5/0023 ,  H04L5/0089 ,  H04L5/0091 ,  H04L5/0092 ,  H04W68/02

    Abstract: Methods are disclosed for supporting transmission of broadcast messages using multiple types of control channels. An example method begins with receiving (1110) a message from each of several user terminals, each message indicating whether the corresponding user terminal supports the receipt of broadcast messages via the second control channel type. In some embodiments, one or more of these messages may indicate that the corresponding user terminal monitors only the second control channel type for broadcast messages. The control node subsequently initiates (1120) a transmission of a broadcast message to one of the user terminals from one or more base stations in a tracking area for the user terminal. This initiation includes indicating to the one or more base stations whether user terminal supports the receipt of broadcast messages via the second control channel type, based on information earlier received by the control node.

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