Method for extending wireless link coverage by controlling wireless communication resource allocation
A method is provided for extending wireless link coverage in a wireless communication system. The method may include limiting a number of allocable sub-channels to a predetermined value in allocating wireless channels that include sub-channels and symbols, calculating a maximum transmission power per sub-channel based on the limited number of allocable sub-channels, and performing power control based on the calculated maximum transmission power per sub-channel. The calculation of the maximum transmission power per sub-channel may be executed at the base station or the mobile terminal by dividing the transmittable maximum power by the limited number of allocable sub-channels.
1 . A method for extending wireless link coverage in a wireless communication system, comprising:
limiting a number of allocable sub-channels to a predetermined value in allocating wireless channels that include sub-channels and symbols;
calculating a maximum transmission power per sub-channel based on the limited number of allocable sub-channels; and
performing power control based on the calculated maximum transmission power per sub-channel.
2 . The method of claim 1 , wherein calculating the maximum transmission power per sub-channel includes dividing a transmittable maximum power by the limited number of allocable sub-channels.
3 . The method of claim 1 , wherein the wireless communication system includes a base station and a mobile terminal, and wherein calculating the maximum transmission power per sub-channel is performed at the base station.
4 . The method of claim 3 , wherein calculating the maximum transmission power per sub-channel includes dividing a transmittable maximum power of the mobile terminal by a maximum number of allocable sub-channels for the mobile terminal.
5 . The method of claim 4 , wherein the maximum number of allocable sub-channels corresponds to the limited number of allocable sub-channels.
6 . The method of claim 4 , further comprising:
the base station receiving information on the transmittable maximum power of the mobile terminal prior to calculating the maximum transmission power per sub-channel.
7 . The method of claim 6 , further comprising transmitting signals based on the power control.
8 . The method of claim 1 , wherein the wireless communication system includes a base station and a mobile terminal, and wherein calculating the maximum transmission power per sub-channel is performed at the mobile terminal.
9 . The method of claim 8 , wherein calculating the maximum transmission power per sub-channel includes dividing a transmittable maximum power of the mobile terminal by a maximum number of allocable sub-channels for the mobile terminal.
10 . The method of claim 9 , further comprising:
the mobile terminal receiving information on a maximum number of allocable sub-channels.
11 . The method of claim 10 , wherein the maximum number of allocable sub-channels corresponds to the limited number of allocable sub-channels.
12 . The method of claim 8 , further comprising transmitting information on the calculated maximum transmission power per sub-channel to the base station.
13 . The method of claim 12 , further comprising transmitting signals based on the power control.
14 . A method for extending wireless link coverage in a wireless communication system including a base station and a mobile terminal, the method executed at the mobile terminal comprising:
receiving information on a number of allocable sub-channels for the mobile terminal from the base station;
calculating a transmission power per sub-channel based on the received information;
transmitting information on the calculated transmission power per sub-channel to the base station; and
transmitting signals under power control based on the information on the transmission power per sub-channel.
15 . The method of claim 14 , wherein receiving information on the number of allocable sub-channels includes receiving information on a maximum number of allocable sub-channels, wherein calculating the transmission power per sub-channel includes calculating a maximum transmission power per sub-channel, and wherein transmitting information on the calculated transmission power per sub-channel includes transmitting information on the calculated maximum transmission power per sub-channel.
16 . The method of claim 15 , wherein calculating the maximum transmission power per sub-channel includes dividing a transmittable maximum power of the mobile terminal by the maximum number of allocable sub-channels for the mobile terminal.
17 . A method for extending wireless link coverage in a wireless communication system including a base station and a mobile terminal, the method executed at the base station comprising:
receiving information on a transmittable power of the mobile terminal from the mobile terminal;
setting a number of allocable sub-channels for the mobile terminal;
calculating a transmission power per sub-channel of the mobile terminal based on the received information and the set number of allocable sub-channels; and
performing power control based on information on the calculated transmission power per sub-channel.
18 . The method of claim 17 , wherein receiving information on the transmittable power includes receiving information on a transmittable maximum power, wherein setting the number of allocable sub-channels includes setting a maximum number of allocable sub-channels, and wherein calculating the transmission power per sub-channel includes calculating a maximum transmission power per sub-channel.
19 . The method of claim 18 , wherein calculating the maximum transmission power per sub-channel includes dividing the transmittable maximum power of the mobile terminal by the maximum number of allocable sub-channels for the mobile terminal.