WIRELESS COMMUNICATION APPARATUS, MOBILE TERMINAL AND WIRELESS COMMUNICATION METHOD
First Claim
1. A terminal apparatus in an OFDMA-scheme communication system using a plurality of frequency channels,wherein the terminal apparatus generates reception quality information cyclically for each of the frequency channels, andnotifies a base station apparatus of the reception quality information in time division.
1 Assignment
0 Petitions
Accused Products
Abstract
To implement wireless communication also with a communicating apparatus that is a limited band terminal capable of receiving only part of frequencies.
Provided are a frequency channel allocating section (10) that allocates frequency channels, a terminal reception quality information processing section (6) that calculates an optimal modulation rate and required transmit power for each subcarrier, a subcarrier power control section (12) that controls a level of transmit power for each subcarrier, and a determining section (10) that checks a reception bandwidth of a communicating apparatus, while determining whether the communicating apparatus is a full band terminal capable of receiving all the frequency channels in the system band or is a limited band terminal capable of receiving only part of frequencies, and when the communicating apparatus is the limited band terminal, the transmit power of all or part of subcarriers is decreased in a frequency channel that is adjacent to a reception band allocated to the communicating apparatus and that is allocated to another communicating apparatus.
-
Citations
4 Claims
-
1. A terminal apparatus in an OFDMA-scheme communication system using a plurality of frequency channels,
wherein the terminal apparatus generates reception quality information cyclically for each of the frequency channels, and notifies a base station apparatus of the reception quality information in time division.
-
3. A communication control method in a terminal apparatus in an OFDMA-scheme communication system using a plurality of frequency channels,
wherein the terminal apparatus generates reception quality information cyclically for each of the frequency channels, and notifies a base station apparatus of the reception quality information in time division.
Specification