DIFFERENTIAL MATCHED SUMMED POSITIONING

• Main Authors: BURGER MARTIN, SMITH ROLAND, SKOF MIKE, DWIVEDI SATYAM
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2021
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING; WIRELESS COMMUNICATIONS NETWORKS

A method and network node for differential matched summed antenna positioning are disclosed. According to one aspect, a method includes summing sequential uplink data signals at each of a plurality of antennas of the network node to produce a plurality of antenna signal sums. The method also includes selecting one of the antenna signal sums to be used as a reference antenna signal sum. A channel impulse response is determined for each of a plurality of other antennas by cross correlating the reference antenna signal sum with the others of the plurality of antenna signal sums. The method further includes estimating a time difference of arrival from the channel impulse responses of the plurality of antennas, and estimating an error of the estimated time difference of arrival of each antenna. A position of a wireless device is determined using the estimated time differences of arrival. 公开了一种用于差分匹配求和天线定位的方法和网络节点。根据一个方面，一种方法包括在网络节点的多个天线中的每个天线处对顺序上行链路数据信号求和，以产生多个天线信号和。该方法还包括选择天线信号和之一用作参考天线信号和。通过将参考天线信号和与多个天线信号和中的其它