Frame structure for filter bank multi-carrier (FBMC) waveforms
First Claim
1. A method for communicating, the method comprising:
- communicating, by a wireless device, a filter bank multi-carrier (FBMC) frame having a frame duration that is an integer multiple of a duration of one of an orthogonal frequency division multiple access (OFDMA) frame communicated in a wireless network or in a neighboring wireless network, a transmission time interval (TTI) of the OFDMA frame, or a slot in the TTI of the OFDMA frame, wherein the FBMC frame and the OFDMA frame are communicated in accordance with at least one of;
a time division multiplexed (TDM) communications scheme;
ora frequency division multiplexed (FDM) communications scheme, the FDM communications scheme specifying that the FBMC frame and the OFDMA frame are communicated in different frequency sub-bands.
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Abstract
A unified frame structure for filter bank multi-carrier (FBMC) and orthogonal frequency division multiplexed (OFDM) waveforms may allow FBMC and OFDM frames to be communicated over a common channel without significant inter-frame gaps. The unified frame structure may set an FBMC frame duration to an integer multiple of an OFDM frame element duration to enable alignment of FBMC frames and OFDM frames in the time domain. The unified frame structure may also map control channels in the FBMC and OFDM frames to common resource locations so that the respective control channels are aligned in the time and/or frequency domains. The unified frame structure may also share synchronization channels between FBMC and OFDM frames. Additionally, overhead in an FBMC time division duplexed (TDD) communications channel can be reduced by overlapping time windows appended to FBMC blocks.
60 Citations
18 Claims
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1. A method for communicating, the method comprising:
communicating, by a wireless device, a filter bank multi-carrier (FBMC) frame having a frame duration that is an integer multiple of a duration of one of an orthogonal frequency division multiple access (OFDMA) frame communicated in a wireless network or in a neighboring wireless network, a transmission time interval (TTI) of the OFDMA frame, or a slot in the TTI of the OFDMA frame, wherein the FBMC frame and the OFDMA frame are communicated in accordance with at least one of; a time division multiplexed (TDM) communications scheme;
ora frequency division multiplexed (FDM) communications scheme, the FDM communications scheme specifying that the FBMC frame and the OFDMA frame are communicated in different frequency sub-bands. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A wireless device comprising:
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a processor; and a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to; communicate a filter bank multi-carrier (FBMC) frame having a frame duration that is an integer multiple of a duration of one of an orthogonal frequency division multiple access (OFDMA) frame communicated in a wireless network or in a neighboring wireless network, a transmission time interval (TTI) of the OFDMA frame, or a slot in the TTI of the OFDMA frame, wherein the FBMC frame and the OFDMA frame are communicated in accordance with at least one of; a time division multiplexed (TDM) communications scheme;
ora frequency division multiplexed (FDM) communications scheme, the FDM communications scheme specifying that the FBMC frame and the OFDMA frame are communicated in different frequency sub-bands. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A method comprising:
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communicating, by a wireless device, a filter bank multi-carrier (FBMC) frame over a wireless network; and communicating, by the wireless device, an orthogonal frequency division multiple access (OFDMA) frame over the wireless network, the FBMC frame and the OFDMA frame being communicated by the same wireless device over the same wireless network, wherein the FBMC frame and the OFDMA frame share at least one synchronization channel, and wherein the FBMC frame and the OFDMA frame are communicated in accordance with at least one of; a time division multiplexed (TDM) communications scheme;
ora frequency division multiplexed (FDM) communications scheme, the FDM communications scheme specifying that the FBMC frame and the OFDMA frame are communicated in different frequency sub-bands. - View Dependent Claims (16)
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17. A wireless device comprising:
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a processor; and a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to; communicate a filter bank multi-carrier (FBMC) frame over a wireless network; and communicate an orthogonal frequency division multiple access (OFDMA) frame over the wireless network, the FBMC frame and the OFDMA frame being communicated by the same wireless device over the same wireless network, wherein the FBMC frame and the OFDMA frame share at least one synchronization channel, and wherein the FBMC frame and the OFDMA frame are communicated in accordance with at least one of; a time division multiplexed (TDM) communications scheme;
ora frequency division multiplexed (FDM) communications scheme, the FDM communications scheme specifying that the FBMC frame and the OFDMA frame are communicated in different frequency sub-bands. - View Dependent Claims (18)
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Specification