Multiple compatible OFDM systems with different bandwidths
First Claim
1. A base station of a radio access network comprising:
- transceiver circuitry configured to communicate a frame of information over a radio interface with one or more first radio terminals configured in accordance with a first radio access technology system that permits radio terminal communications over a first channel bandwidth and with one or more second radio terminals configured in accordance with a second radio access technology system that permits radio terminal communications over a second channel bandwidth; and
a frame handler configured to process data to be transmitted to the first and second radio terminals into a frame with multiple symbol time periods using a frame format that is compatible with both the first radio access technology system and the second radio access technology system so that both the first and second radio terminals may receive and extract data from the frame intended for each of those radio terminals,wherein the frame format includes a first data allocation having an amount up to a maximum bandwidth equal to the first channel bandwidth for transmission to one of the first radio terminals during a symbol time period and a second data allocation having an amount up to a maximum bandwidth equal to the second channel bandwidth for transmission to one of the second radio terminals during the same symbol time period, andwherein the second channel bandwidth is grater than the first channel bandwidth and spans across at least one first channel bandwidth.
1 Assignment
0 Petitions
Accused Products
Abstract
The technology provides a frame handler, a controller, and a frame structure design for a new radio communications system that provides backward compatibility with an existing or legacy radio communications system with lower signal bandwidth. Data to be transmitted to the new and legacy radio terminals is processed into a frame using a frame format that is compatible with both the new radio access technology system and the legacy radio access technology system so that both types of radio terminals may receive and extract data from the frame intended for each of those radio terminals. The format allows new and legacy radio terminal communications across the different bandwidths employed by the new and legacy systems.
41 Citations
43 Claims
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1. A base station of a radio access network comprising:
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transceiver circuitry configured to communicate a frame of information over a radio interface with one or more first radio terminals configured in accordance with a first radio access technology system that permits radio terminal communications over a first channel bandwidth and with one or more second radio terminals configured in accordance with a second radio access technology system that permits radio terminal communications over a second channel bandwidth; and a frame handler configured to process data to be transmitted to the first and second radio terminals into a frame with multiple symbol time periods using a frame format that is compatible with both the first radio access technology system and the second radio access technology system so that both the first and second radio terminals may receive and extract data from the frame intended for each of those radio terminals, wherein the frame format includes a first data allocation having an amount up to a maximum bandwidth equal to the first channel bandwidth for transmission to one of the first radio terminals during a symbol time period and a second data allocation having an amount up to a maximum bandwidth equal to the second channel bandwidth for transmission to one of the second radio terminals during the same symbol time period, and wherein the second channel bandwidth is grater than the first channel bandwidth and spans across at least one first channel bandwidth. - View Dependent Claims (2, 3, 4, 5)
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6. A base station of a radio access network comprising:
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transceiver circuitry configured to communicate a frame of information over a radio interface with one or more first radio terminals configured in accordance with a first radio access technology system that permits radio terminal communications over a first channel bandwidth and with one or more second radio terminals configured in accordance with a second radio access technology system that permits radio terminal communications over a second channel bandwidth; and a frame handler configured to process data to be transmitted to the first and second radio terminals into a frame with multiple symbol time periods using a frame format that is compatible with both the first radio access technology system and the second radio access technology system so that both the first and second radio terminals may receive and extract data from the frame intended for each of those radio terminals, wherein the frame format includes a first data allocation for transmission to the one or more first radio terminals using a sub-band of the second channel bandwidth during a symbol time period, the sub-band corresponding to the first channel bandwidth, and a second data allocation for transmission to one or more of the second radio terminals during the same symbol time period using more than one sub-band included in the second channel bandwidth, and wherein the second channel bandwidth is greater than the first channel bandwidth and spans across at least one first channel bandwidth. - View Dependent Claims (7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method for operating a base station in a radio access network comprising:
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communicating a frame of information over a radio interface with one or more first radio terminals configured in accordance with a first radio access technology system that permits radio terminal communications over a first channel bandwidth and with one or more second radio terminals configured in accordance with a second radio access technology system that permits radio terminal communications over a second channel bandwidth; and processing data to be transmitted to the first and second radio terminals into a frame with multiple symbol time periods using a frame format that is compatible with both the first radio access technology system and the second radio access technology system so that both the first and second radio terminals may receive and extract data from the frame intended for each of those radio terminals, wherein the frame format includes a first data allocation having an amount up to a maximum bandwidth equal to the first channel bandwidth for transmission to one of the first radio terminals during a symbol time period and a second data allocation having an amount up to a maximum bandwidth equal to the second channel bandwidth for transmission to one of the second radio terminals during the same symbol time period, and wherein the second channel bandwidth is greater than the first channel bandwidth and spans across at one first channel bandwidth. - View Dependent Claims (17, 18, 19, 20)
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21. A method for operating a base station in a radio access network comprising:
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communicating a frame of information over a radio interface with one or more first radio terminals configured in accordance with a first radio access technology system that permits radio terminal communications over a first channel bandwidth and with one or more second radio terminals configured in accordance with a second radio access technology system that permits radio terminal communications over a second channel bandwidth; and processing data to be transmitted to the first and second radio terminals into a frame with multiple symbol time periods using a frame format that is compatible with both the first radio access technology system and the second radio access technology system so that both the first and second radio terminals may receive and extract data from the frame intended for each of those radio terminals, wherein the frame format includes a first data allocation for transmission to the one or more first radio terminals using a sub-band of the second channel bandwidth, the sub-band corresponding to the first channel bandwidth, and a second data allocation for transmission to one or more of the second radio terminals during the same symbol time period using more than one sub-band included in the second channel bandwidth, and wherein the second channel bandwidth is greater than the first channel bandwidth and spans across at least one first channel bandwidth. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32)
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33. Radio terminal apparatus, comprising:
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transceiver circuitry for communicating a frame of information over a radio interface to a base station, where the radio terminal and the base station are configured in accordance with a first radio access technology system that permits radio communications over a first channel bandwidth that is different than a second channel bandwidth associated with a second radio access technology that the base station is also configured to support, where the first channel bandwidth configured in accordance with the first radio access technology includes multiple sub-bands, with each sub-band corresponding to the second bandwidth and one or more of the sub-bands is configured in accordance with the second radio access technology; and a frame handler configured to process data to be transmitted to the base station into a frame with multiple symbol time periods using a frame format that is compatible with both the first radio access technology and the second radio access technology, where the data is allocated for transmission across multiple sub-bands, and wherein the frame format includes a first data allocation having an amount up to a maximum bandwidth equal to the first channel bandwidth for transmission to one of the first radio terminals during a symbol time period and a second data allocation having an amount up to a maximum bandwidth equal to the second channel bandwidth for transmission to one of the second radio terminals during the same symbol time period, and wherein the first channel bandwidth is greater than the channel bandwidth and spans across at least one first channel bandwidth. - View Dependent Claims (34, 35, 36, 37, 38, 39, 40, 41, 42, 43)
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Specification