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    • 4. 发明申请
    • METHOD AND TRANSCEIVING DEVICE FOR TRANSMITTING INFORMATION UNITS VIA RADIO LINKS
    • 用于通过无线电链路传输信息单元的方法和收发设备
    • WO2003007533A1
    • 2003-01-23
    • PCT/EP2001/007874
    • 2001-07-09
    • NOKIA CORPORATIONWANG, Yan
    • WANG, Yan
    • H04L1/18
    • H04L1/1819
    • In order to reduce and increase throughput of conventional hybrid type II automatic repeat request (ARQ) the present invention slows a method for estimating the signal to interference ratio SIR of a transmission time division duplex (TDD) channel slot to apply an adapted code ratings for the encoding of information units transmitted trough this slot. The adapted code ratings are achieved by defining a set of distinct transmission and retransmission thresholds which allow to refer a code rating by take a signal to interference ratio SIR of a timeshifted different TDD channel slot into consideration assuming that the correlation of the conditions of the TDD channel is high enough.
    • 为了降低和增加传统混合II型自动重复请求(ARQ)的吞吐量,本发明减慢了用于估计传输时分双工(TDD)信道时隙的信干比SIR的方法,以将适用的代码等级应用于 通过此槽传输的信息单元的编码。 通过定义一组不同的传输和重传阈值来实现适配的代码等级,这些阈值允许通过将时间移位的不同TDD信道时隙的信号与干扰比SIR相加来考虑代码评估,假设TDD的条件的相关性 频道足够高。
    • 6. 发明申请
    • METHOD AND TRANSCEIVING DEVICE FOR RETRANSMITTING ERRONEOUS INFORMATION UNITS IN RADIO LINKS
    • 用于在无线电链路中重新发送错误信息单元的方法和收发设备
    • WO2003007534A1
    • 2003-01-23
    • PCT/EP2001/007940
    • 2001-07-10
    • NOKIA CORPORATIONWANG, Yan
    • WANG, Yan
    • H04L1/18
    • H04L1/1835H04L1/1819
    • The present invention is related to an error handling in transmission of information units in radio links and in particular it is related to an error handling using automatic repeat request (ARQ) and transmission of information units in mobile communication. Type II hybrid ARQ schemes introduce a set of consequent code ratings. Information is first sent with high code rating, i.e. little redundancy, and if one erroneous unit is requested to be retransmitted, additional code bits will be added for the following transmission to enhance the reliability of the retransmission. The fine code rating granularity results in a higher link throughput but in higher normalised packet delays as well. To reduce the access delay of packet data services, the present invention uses different code ratings according to type II hybrid ARQ for different erroneous information units selected from a formatted block of information units, that have been transmitted, are selected and the set of selected erroneous information units is divided into a set of n subsets encoded with n code ratings. Advantageously, the retransmission of portions of the formatted block with different code ratings enhances the reliability of the retransmission.
    • 本发明涉及无线电链路中的信息单元的传输中的错误处理,特别涉及使用自动重传请求(ARQ)的错误处理和移动通信中信息单元的传输。 II型混合ARQ方案引入了一套后续的代码评级。 信息首先以高代码等级发送,即很少的冗余,如果一个错误的单元被请求被重新发送,则将为后续的传输添加附加的码位,以增强重传的可靠性。 精细的代码评级粒度导致更高的链路吞吐量,但是在较高的归一化分组延迟中也是如此。 为了减少分组数据业务的接入延迟,本发明根据类型II混合ARQ对不同的错误信息单元使用不同的代码等级,这些不同的错误信息单元从被格式化的已经发送的信息单元块中选出,并且选择了错误信息 信息单元被划分为n个编码的n个子集的集合。 有利地,具有不同代码额定值的格式化块的部分的重传增强了重传的可靠性。