Utilizing guard band between FDD and TDD wireless systems
First Claim
1. A wireless network comprising:
- a frequency division duplex (FDD) system configured to provide at least a first FDD channel operating within a first frequency band;
a time division duplex (TDD) system configured to provide at least a first TDD channel operating within a second frequency band, the first frequency band and the second frequency band being separated by a third frequency band; and
a half-duplex frequency division duplex (H-FDD) system configured to provide at least a first H-FDD channel operating within the third frequency band, a transmission of the first H-FDD channel being synchronized with one of an uplink transmission or a downlink transmission of the TDD channel.
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Accused Products
Abstract
A wireless system and method includes a frequency division duplex (FDD) system configured to provide at least a first FDD channel operating within a first frequency band. A time division duplex (TDD) system is configured to provide at least a first TDD channel operating within a second frequency band. The first frequency band and the second frequency band are separated by a third frequency band, and a half-duplex frequency division duplex (H-FDD) system is configured to provide at least a first H-FDD channel operating within the third frequency band. A transmission of the first H-FDD channel may be synchronized with one of an uplink transmission and a downlink transmission of the first TDD channel.
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Citations
21 Claims
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1. A wireless network comprising:
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a frequency division duplex (FDD) system configured to provide at least a first FDD channel operating within a first frequency band;
a time division duplex (TDD) system configured to provide at least a first TDD channel operating within a second frequency band, the first frequency band and the second frequency band being separated by a third frequency band; and
a half-duplex frequency division duplex (H-FDD) system configured to provide at least a first H-FDD channel operating within the third frequency band, a transmission of the first H-FDD channel being synchronized with one of an uplink transmission or a downlink transmission of the TDD channel. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for sharing a frequency spectrum between multiple collocated wireless systems comprising:
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providing at least a first frequency division duplex (FDD) channel operating within a first frequency band;
providing at least a first time division duplex (TDD) channel operating within a second frequency band, the first frequency band and the second frequency band being separated by a third frequency band; and
providing at least a first half-duplex frequency division duplex (H-FDD) channel operating within the third frequency band, a transmission of the first H-FDD channel being synchronized with one of a an uplink transmission or a downlink transmission of the TDD channel;
the first FDD channel, the first TDD channel, and the first H-FDD channel being collocated with one another. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method for implementing a time division duplex (TDD) wireless system in a wireless network including a frequency division duplex (FDD) wireless system, the method comprising:
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replacing a first frequency band of a the FDD wireless system with at least a first TDD wireless channel, including leaving a first and a second guard band separating the first TDD wireless channel and at least a first and a second adjacent FDD wireless channel;
deploying a half-duplex frequency division duplex (H-FDD) system in the first and second guard bands. - View Dependent Claims (14, 15, 16, 17, 18)
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19. A wireless system comprising:
a half-duplex frequency division duplex (H-FDD) system configured to provide at least a first H-FDD channel, a transmission of the first H-FDD channel being configured to be synchronized with one of an uplink transmission or a downlink transmission of a TDD channel of a TDD wireless system. - View Dependent Claims (20, 21)
Specification