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US 8,009,623 B2Granted
Base station, user apparatus and method for use of multiple sizes of resource blocks
AssigneeNtt Docomo, Inc.
InventorsKenichi Higuchi, Mamoru Sawahashi
Life of this patent
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Abstract
A base station includes a scheduler at least determining a resource block assigned to a data channel, a transmitted signal generation unit generating a signal to transmit the data channel in accordance with scheduling information supplied from the scheduler, a transmission unit transmitting the signal to a user apparatus, and a resource block size adjustment unit adjusting a size of the resource block.
Claims12
A base station, comprising:
- a scheduler determining a resource block to assign a data channel for a user apparatus, wherein a plurality of resource blocks each occupying a predefined band and a predefined period are arranged in a frequency axis direction in a system band and each of the resource blocks is assigned to a single user apparatus;
- and
- a transmission unit generating a transmission signal for transmitting the data channel assigned to the resource block determined by the scheduler and transmitting the transmission signal to the user apparatus,
- wherein the scheduler defines a first assignment unit having a predefined size and a second assignment unit having as twice size as the first assignment unit as assignment units of the resource blocks,
- a plurality of resource blocks having the first assignment unit allowed to assign to a single user apparatus are locally arranged in two consecutive resource blocks in a system band, and
- resource block groups each consisting of two locally arranged consecutive resource blocks having the first assignment unit are arranged to separate one of the resource block groups from an adjacent one of the resource block group by one resource block having the second assignment unit such that the resource block groups are globally distributed over the system band.
3 more elements
A transmission method, comprising the steps of:
- determining a resource block to assign a data channel for a user apparatus, wherein a plurality of resource blocks each occupying a predefined band and a predefined period are arranged in a frequency axis direction in a system band and each of the resource blocks is assigned to a single user apparatus;
- generating a transmission signal for transmitting the data channel assigned to the determined resource block;
- and
- transmitting the transmission signal to the user apparatus,
- wherein the step of determining comprises defining a first assignment unit having a predefined size and a second assignment unit having as twice size as the first assignment unit as assignment units of the resource blocks,
- a plurality of resource blocks having the first assignment unit allowed to assign to a single user apparatus are locally arranged in two consecutive resource blocks in a system band, and
- resource block groups each consisting of two locally arranged consecutive resource blocks having the first assignment unit are arranged to separate one of the resource block groups from an adjacent one of the resource block group by one resource block having the second assignment unit such that the resource block groups are globally distributed over the system band.
4 more elements
A user apparatus, comprising:
- a reception unit receiving a signal including a data channel assigned by a base station to a resource block, wherein a plurality of resource blocks each occupying a predefined band and a predefined period are arranged in a frequency axis direction in a system band and each of the resource blocks is assigned to a single user apparatus;
- and
- a processing unit deriving the data channel from the signal received by the reception unit,
- wherein the base station defines a first assignment unit having a predefined size and a second assignment unit having as twice size as the first assignment unit as assignment units of the resource blocks in the signal received by the reception unit,
- a plurality of resource blocks having the first assignment unit allowed to assign to a single user apparatus are locally arranged in two consecutive resource blocks in a system band, and
- resource block groups each consisting of two locally arranged consecutive resource blocks having the first assignment unit are arranged to separate one of the resource block groups from an adjacent one of the resource block group by one resource block having the second assignment unit such that the resource block groups are globally distributed over the system band.
3 more elements
A reception method, comprising the steps of:
- receiving a signal including a data channel assigned by a base station to a resource block, wherein a plurality of resource blocks each occupying a predefined band and a predefined period are arranged in a frequency axis direction in a system band and each of the resource blocks is assigned to a single user apparatus;
- and
- deriving the data channel from the signal received by the step of receiving,
- wherein the base station defines a first assignment unit having a predefined size and a second assignment unit having as twice size as the first assignment unit as assignment units of the resource blocks in the signal received at the step of receiving,
- a plurality of resource blocks having the first assignment unit allowed to assign to a single user apparatus are locally arranged in two consecutive resource blocks in a system band, and
- resource block groups each consisting of two locally arranged consecutive resource blocks having the first assignment unit are arranged to separate one of the resource block groups from an adjacent one of the resource block group by one resource block having the second assignment unit such that the resource block groups are globally distributed over the system band.
3 more elements
Dependencies are inferred from the claim text.