Methods and systems for adaptive channel estimation/prediction filter design

摘要

A method to adapt a set of multi-point channel estimation filters for use in wireless communications including measuring a plurality of reception values is provided. Each reception value included in the plurality of reception values is associated with one of the network nodes. The method includes sorting the plurality of reception values according to magnitude and determining a select reception value. The method includes selecting a particular network node from the set of network nodes based on the reception value. The reception value is within a threshold from the select reception value. The method includes adjusting the length of a multi-point channel estimation filter associated with the particular network node. The adjusting the length is based on a lookup table and on the reception value associated with the particular network node, according to some embodiments. User equipment in a wireless network adapted for the above method is also provided.

主权项

1. A method to configure a set of multi-point channel estimation filters for use by a wireless communication device, the method comprising:
measuring at the wireless communication device a plurality of reception values for signals received from a set of two or more network nodes of a wireless network, each reception value in the plurality of reception values associated with a corresponding network node in the set of two or more network nodes; selecting a particular network node from the set of two or more network nodes based on the reception value associated with the particular network node; calculating a coherence time value for a channel between the particular network node and the wireless communication device based on a velocity of the wireless communication device; and adjusting a length of a multi-point channel estimation filter associated with the particular network node based on a filter lookup table and on the calculated coherence time value for the channel between the particular network node and the wireless communication device, wherein the filter lookup table associates filter length values with coherence time values and comprises at least:
a low filter length value associated with a first range of coherence time values, anda high filter length value that exceeds the low filter length value and is associated with a second range of coherence time values that exceed the first range of coherence time values.