Wireless communication device for controlling a target transmission power of a target cell using a classification of an overall channel quality in a cell cluster

A wireless communication method performed by a wireless communication device operating in a wireless network including a plurality of small cells forming a small cell cluster, the method comprising:

• receiving, via the wireless network, a channel quality of a downlink for each user equipment that uses a specific resource block in each small cell of the plurality of small cells;
• classifying, using circuitry of the wireless communication device, an overall channel quality based on the received channel qualities of downlinks, on the specific resource block, of the plurality of small cells including a target small cell and other small cells in a small cell cluster;
• and
• controlling a target transmission power, on the specific resource block, of the target small cell using the classification of the overall channel quality so that the target small cell operates with the target transmission power, wherein
• according to a predetermined classification criterion, the classification of the overall channel quality comprises:
• good, normal, and bad,
• each of the channel qualities is characterized by a signal to interference plus noise ratio (SINR), and
• the predetermined classification criterion comprises:
• the overall channel quality is classified as good if SINRs of the target small cell and the other small cells are all much greater than 1;
• the overall channel quality is classified as bad if SINRs of the target small cell and the other small cells are all much less than 1;
• and
• the overall channel quality is classified as normal in other cases.

A wireless communication device operating in a wireless network including a plurality of small cells forming a small cell cluster, the plurality of small cells including a target small cell, the wireless communication device comprising:

• a memory;
• and
• circuitry configured to:
• receive, via the wireless network during a predetermined time period, a measure of quality of downlinks to a user equipment;
• determine an average channel quality of downlinks based on the measure of quality of downlinks received during the predetermined time period;
• classify the user equipment in the small cell cluster based on the determined average channel quality of downlinks to the user equipment in the predetermined time period;
• allocate a resource block set to the user equipment at least partly based on the classification of the user equipment, wherein the resource block set is allocated to user equipments of the same classification;
• and
• control a target transmission power of a target small cell on a specific resource block using the classification of the user equipment scheduled by the target small cell on the specific resource block so that the target small cell operates with the target transmission power, wherein
• the average channel quality is characterized by an average SINR of the user equipment in the predetermined time period, and
• the circuitry is further configured to
• classify the user equipment into a first type if the average SINR is much greater than 1;
• classify the user equipment into a second type if the average SINR is much less than 1;
• and
• classify the user equipment into a third type if the average SINR is neither much greater than 1 nor much less than 1.