Telecommunications – Radiotelephone system – Zoned or cellular telephone system
Reexamination Certificate
2011-02-15
2011-02-15
Cai, Wayne (Department: 2617)
Telecommunications
Radiotelephone system
Zoned or cellular telephone system
C455S001000, C455S451000, C455S452100, C455S452200, C455S453000, C370S329000, C370S341000, C370S431000, C370S437000
Reexamination Certificate
active
07890115
ABSTRACT:
A method of scheduling resources in an uplink of a wireless cellular communication system, comprising the steps of measuring, by each user equipment in a present cell, pilot strengths of adjacent cells to find base stations within adjacent cells on which the user equipment has the strongest inter-cell interferences and to calculate values of the inter-cell interferences in an uplink direction which is caused by the user equipment on said base stations within said adjacent cells; grouping all user equipments within the present cell based on the calculated values of the inter-cell interferences; grouping used sub-carriers based on the groups of the user equipments so that each group of user equipments corresponds to one group of sub-carriers; allocating each group of sub-carriers to the user equipments included in the group of user equipments selected corresponding to the group of sub-carriers; and based on the allocation of the group of the sub-carriers, calculating a modified signal noise interference power ratio of each user equipment on the corresponding group of sub-carriers, and performing a multi-user equipment resource scheduling algorithm.
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Feng, Minghai, et al., “Uplink Adaptive Resource Allocation Mitigating Inter-cell Interface Fluctuation for Future Cellular Systems”, Proceedings of the 2007 IEEE International Conference on Communications, Jun. 1, 2007, pp. 5519-5524, Glasgow, UK.
Koutsopolous, Iordanis, et al., “Carrier assignment algorithms in wireless broadband networks with channel adaptation”, 2001 IEEE International Conference on Communications, Jun. 11, 2001, pp. 1401-1405, vol. 5, Helsinki, Finland.
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Chen Lan
Feng Minghai
She Xiaoming
Blakely , Sokoloff, Taylor & Zafman LLP
Cai Wayne
NTT Docomo Inc.
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