Inserting virtual carrier in conventional OFDM host carrier in communications system
First Claim
1. A mobile terminal comprising:
- a receiver configured to receive data via a plurality of OFDM sub-carriers on a radio downlink; and
a transmitter configured to transmit data via a plurality of OFDM sub-carriers on a radio uplink, whereindata is transmitted 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 data is transmitted 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, andcontrol information comprising resource allocation information for terminals of the first type is transmitted 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 control information comprising resource allocation information for terminals of the second type is transmitted 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 mobile terminal comprising:
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a receiver configured to receive data via a plurality of OFDM sub-carriers on a radio downlink; and a transmitter configured to transmit data via a plurality of OFDM sub-carriers on a radio uplink, wherein data is transmitted 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 data is transmitted 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 control information comprising resource allocation information for terminals of the first type is transmitted 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 control information comprising resource allocation information for terminals of the second type is transmitted over a second bandwidth corresponding to the second group of OFDM sub-carriers. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A mobile terminal comprising:
circuitry configured to receive data transmitted to mobile terminals of a first type, to which the mobile terminal belongs, on a first group of a plurality of OFDM sub-carriers within a first resource block, wherein the first group is smaller than a second group of OFDM sub-carriers within a second resource block used to transmit data to terminals of a second type, and the first resource block is within the second resource block; and receive control information comprising resource allocation information for the terminals of the first type over a first bandwidth corresponding to the first group of OFDM sub-carriers, wherein control information comprising resource allocation information for terminals of the second type is transmitted over a second bandwidth corresponding to the combined first and second groups of OFDM sub-carriers. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method performed by a mobile terminal, the method comprising:
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receiving data transmitted to mobile terminals of a first type, to which the mobile terminal belongs, on a first group of a plurality of OFDM sub-carriers within a first resource block, wherein the first group is smaller than a second group of OFDM sub-carriers within a second resource block used to transmit data to terminals of a second type, and the first resource block is within the second resource block; and receiving control information comprising resource allocation information for the terminals of the first type over a first bandwidth corresponding to the first group of OFDM sub-carriers, wherein control information comprising resource allocation information for terminals of the second type is transmitted over a second bandwidth corresponding to the combined first and second groups of OFDM sub-carriers. - View Dependent Claims (14, 15, 16, 17, 18)
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Specification