UTILIZATION OF THE UPLINK FDD CHANNEL
First Claim
1. A method for communication, comprising:
- communicating over the air with user equipment (UE) in a frequency domain duplexing (FDD) mode, which defines a downlink channel comprising a first set of time-frequency resources in a first frequency range and an uplink channel comprising a second set of time-frequency resources, comprising multiple physical resource blocks (PRBs) in multiple time periods, in a second frequency range, which has two channel edges and is disjoint from the first frequency range;
identifying an excess capacity in the uplink channel;
allocating at least a portion of the excess capacity for downlink communication by assigning a subset of the time-frequency resources in the second frequency range to the downlink communication, wherein the subset does not comprise at least the PRBs at both of the channel edges in at least one of the time periods; and
communicating over the air with at least one UE by transmitting downlink information using the assigned subset of the time-frequency resources in the second frequency range.
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Abstract
A method for communication, includes communicating over the air with user equipment (UE) (304, 305) in a frequency domain duplexing (FDD) mode, which defines a downlink channel comprising a first set of time-frequency resources in a first frequency range and an uplink channel comprising a second set of time-frequency resources in a second frequency range, which is disjoint from the first frequency range. An excess capacity is identified in the uplink channel, and at a least a portion of the excess capacity is allocated for downlink communication by assigning a subset of the time-frequency resources in the second frequency range to the downlink communication. The method includes communicating over the air with at least one UE by transmitting downlink information using the assigned subset of the time-frequency resources in the second frequency range.
39 Citations
29 Claims
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1. A method for communication, comprising:
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communicating over the air with user equipment (UE) in a frequency domain duplexing (FDD) mode, which defines a downlink channel comprising a first set of time-frequency resources in a first frequency range and an uplink channel comprising a second set of time-frequency resources, comprising multiple physical resource blocks (PRBs) in multiple time periods, in a second frequency range, which has two channel edges and is disjoint from the first frequency range; identifying an excess capacity in the uplink channel; allocating at least a portion of the excess capacity for downlink communication by assigning a subset of the time-frequency resources in the second frequency range to the downlink communication, wherein the subset does not comprise at least the PRBs at both of the channel edges in at least one of the time periods; and communicating over the air with at least one UE by transmitting downlink information using the assigned subset of the time-frequency resources in the second frequency range. - View Dependent Claims (3, 4, 5, 6, 7, 8, 9, 10, 11, 13)
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2. (canceled)
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12. (canceled)
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14. Communication apparatus, comprising:
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at least one radio, which is configured to communicate over the air with user equipment (UE) in a frequency domain duplexing (FDD) mode, which defines a downlink channel comprising a first set of time-frequency resources in a first frequency range and an uplink channel comprising a second set of time-frequency resources, comprising multiple physical resource blocks (PRBs) in multiple time periods, in a second frequency range, which has two channel edges and is disjoint from the first frequency range; and a control block, which is configured to identify an excess capacity in the uplink channel and to allocate at least a portion of the excess capacity for downlink communication by assigning a subset of the time-frequency resources in the second frequency range to the downlink communication, wherein the subset does not comprise at least the PRBs at both of the channel edges in at least one of the time periods, so as to enable the downlink communication to be carried out over the air with at least one UE by transmitting downlink information using the assigned subset of the time-frequency resources in the second frequency range. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24)
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15. (canceled)
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25. (canceled)
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26. Communication apparatus, comprising:
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at least one radio, which is configured to communicate over the air with at least one base station using a frequency channel initially defined for a frequency domain duplexing (FDD) mode, which defines a downlink channel comprising a first set of time-frequency resources in a first frequency range and an uplink channel comprising a second set of time-frequency resources, comprising multiple physical resource blocks (PRBs) in multiple time periods, in a second frequency range, which has two channel edges and is disjoint from the first frequency range, wherein communicating with the base station includes a reception operation using a subset of the second set of time-frequency resources identified as excess capacity; a signal processing block, configured to acquire synchronization with the at least one base station in a time domain duplexing (TDD) mode or in a frequency domain duplexing (FDD) mode, in which the at least one base station transmits downlink information using the subset of the second set of time-frequency resources identified as excess capacity, wherein the subset does not comprise at least the PRBs at both of the channel edges in at least one of the time periods; a control block, which is configured to read system information transmitted by the at least one base station in the TDD or FDD mode so as to enable downlink communication to be carried out over the air with the at least one base station in the TDD or FDD mode. - View Dependent Claims (27, 28)
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29. A system for communication, comprising:
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at least one user equipment (UE); and a base station, which is configured to communicate over the air with the at least one user equipment (UE) in a frequency domain duplexing (FDD) mode, which defines a downlink channel comprising a first set of time-frequency resources in a first frequency range and an uplink channel comprising a second set of time-frequency resources, comprising multiple physical resource blocks (PRBs) in multiple time periods, in a second frequency range, which has two channel edges and is disjoint from the first frequency range, to identify an excess capacity in the uplink channel, to allocate at least a portion of the excess capacity for downlink communication by assigning a subset of the time-frequency resources in the second frequency range to the downlink communication, wherein the subset does not comprise at least the PRBs at both channel edges in at least one of the time periods and to communicate over the air with one or more of the at least one UE by transmitting downlink information using the assigned subset of the time-frequency resources in the second frequency range.
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Specification