Configurable downlink and uplink channels for improving transmission of data by switching duplex nominal frequency spacing according to conditions
First Claim
1. A method comprising:
- establishing a connection between a terminal and a current sector serving the terminal via a first frequency channel for a first link and a second frequency channel for a second link for utilizing frequency division duplexing;
selecting a third frequency channel from multiple frequency channels available in the current sector for the first link, wherein the first frequency channel and the third frequency channel are in the same frequency band, and wherein a base station that serves the current sector is configured to send sector information associated with the multiple frequency channels available in the current sector to the terminal; and
switching the connection between the terminal and the current sector to the third frequency channel for the first link while continuing to utilize frequency division duplexing and maintaining the connection between the terminal and the current sector via the second frequency channel for the second link, wherein the first, second, and third frequency channels are different from one another.
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Abstract
Transmission techniques using configurable channels for the downlink and/or uplink are described. In one aspect, the downlink channel and/or uplink channel may be independently selected for a terminal. The terminal may establish a connection with a base station on default downlink and uplink channels. Another downlink channel and/or another uplink channel may be selected based on various factors such as channel quality, loading, and interference. The terminal would then switch to the new downlink and/or uplink channel for communication. In another aspect, the base stations broadcast sector information used by the terminals for communication and/or channel selection. The sector information may include various types of information such as the available downlink and uplink channels, the frequencies of the available channels, the loading on the available channels, and QoS information. The terminals may select a sector, a downlink channel, and/or an uplink channel based on the sector information.
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Citations
20 Claims
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1. A method comprising:
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establishing a connection between a terminal and a current sector serving the terminal via a first frequency channel for a first link and a second frequency channel for a second link for utilizing frequency division duplexing; selecting a third frequency channel from multiple frequency channels available in the current sector for the first link, wherein the first frequency channel and the third frequency channel are in the same frequency band, and wherein a base station that serves the current sector is configured to send sector information associated with the multiple frequency channels available in the current sector to the terminal; and switching the connection between the terminal and the current sector to the third frequency channel for the first link while continuing to utilize frequency division duplexing and maintaining the connection between the terminal and the current sector via the second frequency channel for the second link, wherein the first, second, and third frequency channels are different from one another. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An apparatus comprising:
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at least one processor configured to establish a connection between a terminal and a current sector serving the terminal via a first frequency channel for a first link and a second frequency channel for a second link for utilizing frequency division duplexing, to select a third frequency channel from multiple frequency channels available in the current sector for the first link, wherein the first frequency channel and the third frequency channel are in the same frequency band, and wherein a base station that serves the current sector is configured to send sector information associated with the multiple frequency channels available in the current sector to the terminal, and to switch the connection between the terminal and the current sector to the third frequency channel for the first link while continuing to utilize frequency division duplexing and maintaining the connection between the terminal and the current sector via the second frequency channel for the second link, wherein the first, second, and third frequency channels are different from one another; and a memory coupled to the at least one processor. - View Dependent Claims (13, 14)
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15. An apparatus, comprising:
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means for establishing a connection between a terminal and a current sector serving the terminal via a first frequency channel for a first link and a second frequency channel for a second link for utilizing frequency division duplexing; means for selecting a third frequency channel from multiple frequency channels available in the current sector for the first link, wherein the first frequency channel and the third frequency channel are in the same frequency band, and wherein a base station that serves the current sector is configured to send sector information associated with the multiple frequency channels available in the current sector to the terminal; and means for switching the connection between the terminal and the current sector to the third frequency channel for the first link while continuing to utilize frequency division duplexing and maintaining the connection between the terminal and the current sector via the second frequency channel for the second link, wherein the first, second, and third frequency channels are different from one another. - View Dependent Claims (16, 17)
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18. A non-transitory computer-readable medium storing computer-executable instructions configured to cause a computer to:
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establish a connection between a terminal and a current sector serving the terminal via a first frequency channel for a first link and a second frequency channel for a second link for utilizing frequency division duplexing; select a third frequency channel from multiple frequency channels available in the current sector for the first link, wherein the first frequency channel and the third frequency channel are in the same frequency band, and wherein a base station that serves the current sector is configured to send sector information associated with the multiple frequency channels available in the current sector to the terminal; and switch the connection between the terminal and the current sector to the third frequency channel for the first link while continuing to utilize frequency division duplexing and maintaining the connection between the terminal and the current sector via the second frequency channel for the second link, wherein the first, second, and third frequency channels are different from one another. - View Dependent Claims (19, 20)
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Specification