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    • 1. 发明申请
    • DATA TRANSMISSION FOR LOW COST MTC DEVICES
    • 低成本MTC设备的数据传输
    • WO2014110785A1
    • 2014-07-24
    • PCT/CN2013/070668
    • 2013-01-18
    • BROADCOM CORPORATIONZENG, ErlinGAO, ChunyanWEI, NaTAN, ShuangBAI, WeiWANG, Haiming
    • ZENG, ErlinGAO, ChunyanWEI, NaTAN, ShuangBAI, WeiWANG, Haiming
    • H04W72/04
    • H04L1/0038H04L1/18
    • A user equipment (UE) conducting machine-type communication (MTC) attempts to blindly decode a message it received using a pre-arranged and finite set of transport formats; and sends on an uplink radio resource feedback about the message, wherein the feedback is based on a result of the blind decoding. Each transport format of the pre-arranged set comprises a unique combination of modulation and coding scheme, physical resource block set;, and number of transmit repetitions. Prior to the message the pre-arranged set may be indicated to the UE in wireless signaling, or it may be specified in a radio standard. The set may be designated for downlink messages and a second set designated for uplink messages. Various embodiments are described for the uplink radio resource on which the feedback is sent, and conventional HARQ feedback is adapted for MTC in these teachings.
    • 进行机器型通信(MTC)的用户设备(UE)尝试使用预先安排的和有限的传输格式集盲解码其接收的消息; 并且在上行链路无线电资源上发送关于消息的反馈,其中反馈基于盲解码的结果。 预先设置的集合的每个传输格式包括调制和编码方案,物理资源块集合和发送重复次数的唯一组合。 在消息之前,可以在无线信令中向UE指示预先安排的集合,或者可以在无线电标准中指定。 该集合可以被指定用于下行链路消息,第二组被指定用于上行链路消息。 对于其上发送反馈的上行链路无线电资源描述了各种实施例,并且在这些教导中常规HARQ反馈适用于MTC。
    • 2. 发明申请
    • RANDOM ACCESS FOR COVERAGE IMPROVEMENT
    • 随机访问覆盖改进
    • WO2014110805A1
    • 2014-07-24
    • PCT/CN2013/070708
    • 2013-01-18
    • BROADCOM CORPORATIONWEI, NaGAO, ChunyanZENG, ErlinBAI, WeiWANG, HaimingTAN, Shuang
    • WEI, NaGAO, ChunyanZENG, ErlinBAI, WeiWANG, HaimingTAN, Shuang
    • H04W74/08
    • H04W74/0866
    • A user equipment UE sends in a first message on a random access channel at least one instance of a cyclic prefix CP and a configurable number of N instances of a sequence (N>1); then searches for a second message that replies to the first in a window defined by the first message and implicitly linked to the number N used in the first message. N can be configured by the UE based on its estimate of coverage improvement, and/or by the network and signaled via broadcast SIB/MIB. In one embodiment the first message has one CP and N sequences; in another the CP and sequence are placed in each of N transmission time intervals TTIs. Transmission of the first message begins in a TTI that is a function of a) a system frame number and the number N; and/or b) a time and frequency radio resource based on the number N.
    • 用户设备UE在随机接入信道上发送循环前缀CP和可配置数量的N个序列(N> 1)的至少一个实例的第一消息; 然后搜索在由第一消息定义的窗口中回复第一个消息并隐式链接到第一个消息中使用的数字N的第二个消息。 N可以由UE基于其对覆盖改进的估计和/或由网络配置并且经由广播SIB / MIB发信号。 在一个实施例中,第一消息具有一个CP和N个序列; 在另一个中,CP和序列被放置在N个传输时间间隔TTI中的每一个中。 第一消息的传输在TTI中开始,该TTI是a)系统帧号和数字N的函数; 和/或b)基于数量N的时间和频率无线电资源。