Method and apparatus for determining ue mobility status
AssigneeTelefonaktiebolaget LM Ericsson (publ)
InventorsJiandong ZHUANG, Xixian CHEN
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Abstract
A radio user equipment (UE) mobility status is determined in a communications node. UE mobility status measurements associated with the UE communicating over a radio channel are performed. The UE mobility status corresponds to a degree of variation of the radio channel over time. Channel characteristics of the radio channel at a first time and at a second later time are determined. Based on the determined channel characteristics, a channel characteristic error metric is determined and compared to a predetermined threshold. The UE mobility status is determined based on one or more iterations of the threshold comparison.
Claims44
A method for determining a radio user equipment (UE) mobility status in a radio communications node, comprising the steps of:
- a-performing UE mobility status measurements associated with the UE communicating over a radio channel, where the UE mobility status corresponds to a degree of variation of the radio channel over at least one of time and frequency;
- b-determining a channel characteristic of the radio channel at a first time;
- c-determining a channel characteristic of the radio channel at a second later time;
- d-determining a channel characteristic error metric based on the channel characteristics determined at the first time and at the second time;
- e-comparing the channel characteristic error metric to a predetermined threshold;
- and
- f-determining the UE mobility status based on the threshold comparison.
Apparatus for determining a radio user equipment (UE) mobility status in a radio communications node, comprising a data processor configured to:
- a-perform UE mobility status measurements associated with the UE communicating over a radio channel, where the UE mobility status corresponds to a degree of variation of the radio channel over at least one of time and frequency;
- b-determine a channel characteristic of the radio channel at a first time;
- c-determine a channel characteristic of the radio channel at a second later time;
- d-determine a channel characteristic error metric based on the channel characteristic determined at the first time and the channel characteristic determined at the second time;
- e-compare the channel characteristic error metric to a predetermined threshold;
- and
- f-determine the UE mobility status based on the threshold comparison.
Dependencies are inferred from the claim text.