Controller for allocating radio resource blocks to user devices located in cells of a cellular network

A method of mitigating interference experienced by a user device in a cellular network, the method comprising:

• allocating a communication channel to a first user device located in a cell of the network by assigning a resource block for communications between the user device and a first base station that serves the cell, the first user device being a central user device located in a central region of the cell;
• allocating a communication channel to a center user device located at a center of the cell by assigning a respective resource block for communications between the center user device and the first base station;
• identifying at least one other user device that is located in an edge region of the cell and which is presently communicating with a second base station located in a neighbouring cell using the same resource block;
• and
• adjusting the power of transmissions between the first user device and the first base station so as to reduce the interference caused by the transmissions between the first user device and the first base station at the at least one other user device presently communicating with the second base station, wherein
• the power of transmission between the first user device and the first base station is varied through a plurality of levels,
• for each level, a performance criterion is determined, the performance criterion being based on the transmission rates of each user device presently within range of the first base station,
• the method further comprises selecting the power level that results in the best value for the performance criterion, and
• the center user device is allocated a same resource block as the at least one other user device.

A controller for allocating a radio resource block to a user device located in a cell of a cellular network, the cell having a first base station, the controller comprising:

• a processor programmed to:
• identify a plurality of edge user devices that are within range of the first base station, the edge user devices being ones located at an edge region of the cell and being identified by comparing a signal power received by the device from the first base station and from a neighbouring base station;
• identify, from the plurality of edge user devices, a first edge user device with which the first base station intends to communicate and a second edge user device that is presently communicating with a second base station located in a neighbouring cell, the first edge user device being one of a plurality of first identified edge user devices within range of the first base station and with which the first base station intends to communicate;
• allocate a communication channel to each of the first edge user devices by assigning a respective resource block for communications between each first edge user device and the first base station;
• and
• allocate a communication channel to a center user device located at a center of the cell by assigning a respective resource block for communications between the center user device and the first base station, wherein
• for each of the first edge user devices, the allocating includes selecting the resource block that will provide the highest transmission rate for the first edge user device in question, whilst differing from any resource blocks already allocated for communication between the second edge user device and the second base station,
• each of the first edge user devices is assigned a plurality of resource blocks in turn, and
• the center user device is allocated a same resource block as the second edge user device.

A controller for controlling the power of transmissions between a base station and a user device in a cellular network, the controller comprising:

• a processor programmed to:
• allocate a communication channel to a first user device located in a cell of the network by assigning a resource block for communications between the user device and a first base station that serves the cell, the first user device being a central user device located in a central region of the cell;
• allocate a communication channel to a center user device located at a center of the cell by assigning a respective resource block for communications between the center user device and the first base station;
• identify at least one other user device that is located in an edge region of the cell and which is presently communicating with a second base station located in a neighbouring cell using the same resource block;
• and
• adjust the power of transmissions between the first user device and the first base station so as to reduce the interference caused by the transmissions between the first user device and the first base station at the at least one other user device presently communicating with the second base station, wherein
• the power of transmission between the first user device and the first base station is varied through a plurality of levels,
• for each level, a performance criterion is determined, the performance criterion being based on the transmission rates of each user device presently within range of the first base station,
• the controller is further configured to select the power level that results in the best value for the performance criterion,
• the center user device is allocated a same resource block as the at least one other user device.

A non-transitory computer readable storage medium comprising computer executable instructions that when executed by a computer will cause the computer to implement a method of allocating a radio resource block to a user device located in a cell of a cellular network, the cell having a first base station, the method comprising:

• identifying a plurality of edge user devices that are within range of the first base station, the edge user devices being ones located at an edge region of the cell and being identified by comparing a signal power received by the device from the first base station and from a neighbouring base station;
• identifying, from the plurality of edge user devices, a first edge user device with which the first base station intends to communicate and a second edge user device that is presently communicating with a second base station located in a neighbouring cell, the first edge user device being one of a plurality of first identified edge user devices within range of the first base station and with which the first base station intends to communicate;
• allocating a communication channel to each of the first edge user devices by assigning a respective resource block for communications between each first edge user device and the first base station;
• and
• allocating a communication channel to a center user device located at a center of the cell by assigning a respective resource block for communications between the center user device and the first base station, wherein
• for each of the first edge user devices, the resource block that is assigned is selected as being the one that will provide the highest transmission rate for the first edge user device in question, whilst differing from any resource blocks already allocated for communication between the second edge user device and the second base station,
• each of the first edge user devices is assigned a plurality of resource blocks in turn, and
• the center user device is allocated a same resource block as the second edge user device.