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US 10,433,283 B2Granted
System and method for bandwidth division and resource block allocation
AssigneeHuawei Technologies Co., Ltd.
InventorsToufiqul Islam, Kelvin Kar Kin Au, Liqing Zhang
Life of this patent
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Abstract
Systems and apparatus for assigning sub-bands to numerologies are provided. A system bandwidth is divided into bandwidth portions, and the bandwidth portions are used as the unit of assignment for assigning sub-bands to numerologies. Systems and methods are also provided for allocating resource blocks over a bandwidth such as a sub-band. The available bandwidth is divided into sub-band portions, and the bandwidth portions are used as the unit of allocation for allocating resource blocks to user equipment.
Claims19
A method comprising:
- transmitting a bandwidth portion assignment to indicate an assignment of at least one first bandwidth portion of a plurality of bandwidth portions within an available bandwidth to a given first numerology, the given first numerology having an associated first OFDM subcarrier spacing and first symbol duration, the plurality of bandwidth portions having at least one second bandwidth portion that is assigned to a second numerology, the second numerology having an associated second OFDM subcarrier spacing and second symbol duration, and the first OFDM subcarrier spacing differing from the second OFDM subcarrier spacing by a factor of 2n, where n≠0.
A method comprising:
- transmitting a sub-band portion selection field to select at least one sub-band portion from a plurality of sub-band portions of at least one bandwidth portion assigned to a first numerology, the first numerology having an associated first OFDM subcarrier spacing and first symbol duration, wherein a further at least one bandwidth portion is assigned to a second numerology, the second numerology having an associated second OFDM subcarrier spacing and second symbol duration, the first OFDM subcarrier spacing differing from the second OFDM subcarrier spacing by a factor of 2n, where n≠0;
- and
- transmitting a resource block allocation field to indicate an allocation of resource blocks or resource block groups within the selected at least one sub-band portion.
An apparatus comprising:
- a bandwidth portion assigner configured to transmit a bandwidth portion assignment to indicate an assignment of at least one first bandwidth portion of a plurality of bandwidth portions within an available bandwidth to a given first numerology, the given first numerology having an associated first OFDM subcarrier spacing and first symbol duration, the plurality of bandwidth portions having at least one second bandwidth portion that is assigned to a second numerology, the second numerology having an associated second OFDM subcarrier spacing and second symbol duration, and the first OFDM subcarrier spacing differing from the second OFDM subcarrier spacing by a factor of 2n, where n≠0.
An apparatus comprising:
- a resource block allocator configured to transmit a sub-band portion selection field to select at least one sub-band portion from a plurality of sub-band portions of at least one bandwidth portion assigned to a first numerology, and to transmit a resource block allocation field to indicate an allocation of resource blocks or resource block groups within the selected at least one sub-band portion the first numerology having an associated first OFDM subcarrier spacing and first symbol duration, wherein a further at least one bandwidth portion is assigned to a second numerology, the second numerology having an associated second OFDM subcarrier spacing and second symbol duration, the first OFDM subcarrier spacing differing from the second OFDM subcarrier spacing by a factor of 2n, where n≠0.
Dependencies are inferred from the claim text.