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    • 6. 发明申请
    • RELAY-ASSISTED HARQ TRANSMISSION SYSTEM
    • 中继辅助传输系统
    • WO2008024158A1
    • 2008-02-28
    • PCT/US2007/015850
    • 2007-07-12
    • SIEMENS CORPORATE RESEARCH, INC.CHINDAPOL, AikMILLICEVIC, Marija
    • CHINDAPOL, AikMILLICEVIC, Marija
    • H04L1/18
    • H04L1/1812H04L1/1607H04L2001/0092H04W88/04
    • A method for transmitting data from a source to a destination. The method includes: transmitting the data from the source to both the destination and a relay station within a first transmission; decoding the data in the first transmitting at both the relay station and the destination wherein the destination acknowledges success of the decoding by generating a ACK message or lack of success by generating either a NACK message or by failing to generate the ACK signal; retransmitting from the source information related to the first transmission in response to either the NACK message or the failure of the destination to generate the ACK message; and wherein when the relay station decodes the data sent by the source within the first transmission correctly, the relay station transmits a second transmission; or, on the other hand, if the relay station is unable to decode the data correctly from the first transmission sent by the source, the relay station remains silent. The destination may be another relay station.
    • 一种从源到目的地传输数据的方法。 该方法包括:在第一传输内将数据从源传输到目的地和中继站; 在中继站和目的地的第一次发送中对数据进行解码,其中目的地通过产生ACK消息或通过生成NACK消息或通过不产生ACK信号来生成ACK消息或缺少成功来确认解码的成功; 响应于所述NACK消息或所述目的地的故障来从与所述第一传输相关的源信息重传以生成所述ACK消息; 并且其中当所述中继站正确地解码由所述源在所述第一传输中发送的数据时,所述中继站发送第二传输; 或者另一方面,如果中继站不能从源发送的第一传输中正确解码数据,则中继站保持静音。 目的地可以是另一个中继站。
    • 10. 发明申请
    • DYNAMIC REUSE PARTITIONING AND SUBCHANNEL ALLOCATION SCHEME IN MULTICELL OFDMA DOWNLINK SYSTEMS
    • 多媒体下行链路系统中的动态重用分区和子信道分配方案
    • WO2007041521A1
    • 2007-04-12
    • PCT/US2006/038503
    • 2006-10-02
    • SIEMENS CORPORATE RESEARCH, INC.CAO, JianCHINDAPOL, Aik
    • CAO, JianCHINDAPOL, Aik
    • H04Q7/36
    • H04W16/12H04W16/02
    • The reuse partitioning problem for a cellular orthogonal frequency division multiple access (OFDMA) system with dynamic subcarrier allocation is considered. One objective is to allocate the network resources in an efficient way in order to maximize the system's total throughput under individual user's guality-of-service (QoS) constraint. A suboptimal two-step approach is used where the radio network controller (RNC) solves the network planning problem and each base station (BS) solves the cell throughput maximization problem. Compared with the optimal resource allocation scheme, the approach described herein has much lower computational complexity in the RNC. Moreover, the communication overhead between each BS and the RNC is reduced substantially which renders our approach more practical for delay sensitive applications.
    • 考虑了具有动态子载波分配的蜂窝正交频分多址(OFDMA)系统的重用分区问题。 一个目标是以有效的方式分配网络资源,以便在单个用户的服务质量(QoS)约束下最大化系统的总吞吐量。 无线电网络控制器(RNC)解决网络规划问题,每个基站(BS)解决小区吞吐量最大化问题,都采用次优的两步法。 与最优资源分配方案相比,本文描述的方法在RNC中具有低得多的计算复杂度。 此外,每个BS和RNC之间的通信开销大大降低,这使得我们的方法对延迟敏感的应用更为实用。