Small cell interference coordination method and wireless communication device
AssigneeSony Corporation
InventorsLiang Wu, Zaichen Zhang, Jian Dang, Yingying Yu, Weiwei Qin
Life of this patent
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Abstract
A small cell interference coordination method and wireless communication device includes obtaining mobile information of at least one of the small cells. Relative movement between the small cells is determined according to at least the movement information. A Doppler frequency shift of a signal between small cells is estimated according to the relative movement. An interference alignment policy between small cells is implemented according to the estimated Doppler frequency shift.
Claims19
An electronic device in a wireless communication system includes a first cell having a first base station providing a signal coverage range and a second cell having a second base station providing a signal coverage range, comprising:
- circuitry, configured to:
- obtain movement information of the first cell and/or the second cell;
- determine a relative moving condition between the first cell and the second cell based on the movement information;
- estimate a doppler shift of a signal between the first cell and the second cell based on the relative moving condition;
- and
- perform interference mitigation between the first cell and the second cell based on the estimated doppler shift when the signal coverage ranges of the first cell and the second cell overlap,
- wherein the interference mitigation comprises adjusting a frequency of a signal of the first cell to shift the interference between the first cell and the second cell to specific transmission resources, and
- wherein the circuitry is further configured to determine, based on the movement information and locations of the first cell and the second cell, a timing to start performing the interference mitigation and/or stop performing the interference mitigation.
A method for a wireless communication system including a first cell having a first base station providing a signal coverage range and a second cell having a second base station providing a signal coverage range, comprising:
- obtaining movement information of the first cell and/or the second cell;
- determining a relative moving condition between the first cell and the second cell based on the movement information;
- estimating a doppler shift of a signal between the first cell and the second cell based on the relative moving condition;
- and
- performing interference mitigation between the first cell and the second cell based on the estimated doppler shift when the signal coverage ranges of the first cell and the second cell overlap,
- wherein the interference mitigation comprises adjusting a frequency of a signal of the first cell to shift the interference between the first cell and the second cell to specific transmission resources,
- the method further comprising determining, based on the movement information and locations of the first cell and the second cell, a timing to start performing the interference mitigation and/or stop performing the interference mitigation.
Dependencies are inferred from the claim text.