Inserting virtual carrier in conventional OFDM host carrier in communications system
First Claim
1. A method of allocating transmission resources in an OFDM wireless telecommunication system arranged to communicate data using a plurality of OFDM sub-carriers, the method comprising:
- allocating transmission resources provided by a first group of the plurality of OFDM sub-carriers within a first physical resource block to terminals of a first type;
allocating transmission resources provided by a second group of the plurality of OFDM sub-carriers to terminals of a second type within a second physical resource, the second group being smaller than the first group and the second physical resource block being selected from within the first physical resource block;
transmitting control information comprising resource allocation information for terminals of the first type over a first bandwidth corresponding to the combined first and second groups of OFDM sub-carriers in different OFDM symbols to transmission of control information comprising resource allocation information for the terminals of the second type; and
transmitting control information comprising resource allocation information for terminals of the second type over a second bandwidth corresponding to the second group of OFDM sub-carriers.
3 Assignments
0 Petitions
Accused Products
Abstract
A method of allocating transmission resources in an OFDM wireless telecommunication system arranged to communicate data using a plurality of OFDM sub-carriers. The method comprises allocating transmission resources provided by a first group of the plurality of OFDM sub-carriers within a first frequency band to terminals of a first type; allocating transmission resources provided by a second group of the plurality of OFDM sub-carriers within a second frequency band to terminals of a second type, the second group being smaller than the first group and the second frequency band being selected from within the first frequency band; transmitting control information comprising resource allocation information for terminals of the first type over a first bandwidth corresponding to the combined first and second groups of OFDM sub-carriers; and then transmitting control information comprising resource allocation information for terminals of the second type over a second bandwidth corresponding to the second group of OFDM sub-carriers.
8 Citations
18 Claims
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1. A method of allocating transmission resources in an OFDM wireless telecommunication system arranged to communicate data using a plurality of OFDM sub-carriers, the method comprising:
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allocating transmission resources provided by a first group of the plurality of OFDM sub-carriers within a first physical resource block to terminals of a first type; allocating transmission resources provided by a second group of the plurality of OFDM sub-carriers to terminals of a second type within a second physical resource, the second group being smaller than the first group and the second physical resource block being selected from within the first physical resource block; transmitting control information comprising resource allocation information for terminals of the first type over a first bandwidth corresponding to the combined first and second groups of OFDM sub-carriers in different OFDM symbols to transmission of control information comprising resource allocation information for the terminals of the second type; and transmitting control information comprising resource allocation information for terminals of the second type over a second bandwidth corresponding to the second group of OFDM sub-carriers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A mobile terminal comprising:
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a receiver configured to receive data transmitted from a base station via a plurality of OFDM sub-carriers on a radio downlink; and a transmitter configured to transmit data to the base station via a plurality of OFDM sub-carriers on a radio uplink, wherein the base station configured to transmit data to mobile terminals of a first type on a first group of a plurality of OFDM sub-carriers within a first physical resource block and to transmit data to mobile terminals of a second type to which the mobile terminal belongs on a second group of the plurality of OFDM sub-carriers within a second physical resource block, the second group being smaller than the first group and the second physical resource block being selected from within the first physical resource block, and the base station configured to transmit control information comprising resource allocation information for terminals of the first type over a first bandwidth corresponding to the combined first and second groups of OFDM sub-carriers in different OFDM symbols to transmission of control information comprising resource allocation information for the terminals of the second type and to transmit control information comprising resource allocation information for terminals of the second type over a second bandwidth corresponding to the second group of OFDM sub-carriers. - View Dependent Claims (14, 15, 16, 17)
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18. A method performed by a mobile terminal, the method comprising:
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receiving data transmitted from a base station via a plurality of OFDM sub-carriers on a radio downlink; and a transmitting data to the base station via a plurality of OFDM sub-carriers on a radio uplink, wherein the second group being smaller than the first group and the second physical resource block being selected from within the first physical resource block, and the base station configured to transmit control information comprising resource allocation information for terminals of the first type over a first bandwidth corresponding to the combined first and second groups of OFDM sub-carriers in different OFDM symbols to transmission of control information comprising resource allocation information for the terminals of the second type and to transmit control information comprising resource allocation information for terminals of the second type over a second bandwidth corresponding to the second group of OFDM sub-carriers.
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Specification