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    • 5. 发明申请
    • POSITIONING REFERENCE SIGNALS IN A TELECOMMUNICATION SYSTEM
    • 电信系统中的定位参考信号
    • WO2011003030A1
    • 2011-01-06
    • PCT/US2010/040833
    • 2010-07-01
    • QUALCOMM INCORPORATEDBACHU, Raja, S.SAMPATH, AshwinKHANDEKAR, Aamod Dinkar
    • BACHU, Raja, S.SAMPATH, AshwinKHANDEKAR, Aamod Dinkar
    • H04L5/00H04W64/00
    • H04L5/0007G01S1/20H04L5/0053H04W64/00H04W72/04
    • Systems and methods are described to supply positioning reference signal (PRS) in a telecommunication system. A base station supplies a PRS sequence according at least to a time-frequency pattern of modulation symbols, wherein the time-frequency pattern assigns a modulation symbol to each frequency tone in a block of time-frequency resources allocated to transmit PRS. The base station associates a modulation symbol in the time-frequency pattern with a reference symbol in the PRS sequence through a mapping that represents the time-frequency pattern. The PRS sequence is conveyed to user equipment through delivery of a set of modulation symbols established through the mapping. Different time-frequency patterns can be exploited based on time-structure of a radio sub-frame. The user equipment receives the PRS sequence according to at least the time-frequency pattern of modulation symbols and utilizes at least the PRS sequence as part of a process to produce a location estimate.
    • 描述了系统和方法以在电信系统中提供定位参考信号(PRS)。 基站至少根据调制符号的时间 - 频率模式提供PRS序列,其中,时分频率模式为分配给发送PRS的时间 - 频率资源的块中的每个频率分配调制符号。 基站通过表示时间 - 频率模式的映射将PRS序列中的时间 - 频率模式中的调制符号与参考符号相关联。 通过传递通过映射建立的一组调制符号将PRS序列传送给用户设备。 可以基于无线电子帧的时间结构来利用不同的时间 - 频率模式。 用户设备至少根据调制符号的时间 - 频率模式接收PRS序列,并且至少使用PRS序列作为产生位置估计的过程的一部分。
    • 7. 发明申请
    • SPATIAL REUSE IN A WIRELESS NETWORK
    • 无线网络中的空间重用
    • WO2012044626A1
    • 2012-04-05
    • PCT/US2011/053517
    • 2011-09-27
    • QUALCOMM INCORPORATEDMADAN, Ritesh, K.SAMPATH, AshwinSADEK, Ahmed, K.
    • MADAN, Ritesh, K.SAMPATH, AshwinSADEK, Ahmed, K.
    • H04W74/08
    • H04W74/0816H04W74/085
    • In a first method, a first apparatus determines a channel gain to a second apparatus with which the first apparatus is communicating. The first apparatus determines interferer backoff information that ensures an interference level at the first apparatus such that a signal received from the second apparatus can be decoded reliably. The interferer backoff information is determined based on the channel gain. The first apparatus transmits information based on the interferer backoff information in a message to the second apparatus. In a second method, a first apparatus in communication with a second apparatus determines a channel gain to a third apparatus with which the first apparatus can potentially interfere. The first apparatus receives a message from the third apparatus. The message includes interferer backoff information. The first apparatus determines a power for transmitting a signal to the second apparatus based on the interferer backoff information and the channel gain.
    • 在第一种方法中,第一装置确定与第一装置正在通信的第二装置的信道增益。 第一装置确定确保第一装置处的干扰电平的干扰源退避信息,使得可以可靠地解码从第二装置接收的信号。 基于信道增益确定干扰源补偿信息。 第一装置基于消息中的干扰源补偿信息向第二装置发送信息。 在第二种方法中,与第二装置通信的第一装置确定对第一装置可能潜在地干扰的第三装置的信道增益。 第一装置从第三装置接收消息。 该消息包括干扰源补偿信息。 第一装置基于干扰源退避信息和信道增益确定用于向第二装置发送信号的功率。