FLEXIBLE SUBFRAMES
First Claim
Patent Images
1. A radio terminal for use in a radio communications network, comprising:
- electronic circuitry configured to process data for or from a frame structure that includes one or more downlink subframes preconfigured as a downlink subframe, one or more uplink subframes preconfigured as an uplink subframe, and one or more flexible subframes, where a flexible subframe is dynamically allocated to be an uplink subframe in one instance of a frame and a downlink subframe in another frame instance;
receive circuitry configured to receive and process information sent by a base station in a flexible subframe;
transmit circuitry configured to;
transmit information in an uplink direction using a flexible subframe as a uplink subframe; and
transmit information directly to another radio terminal thereby bypassing the base station using a second flexible subframe.
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Accused Products
Abstract
The technology disclosed provides the ability for a subframe to be configured as a “flexible” subframe. As a result, at least three different types of subframes in a TDD system may be configured: a downlink (“DL”) subframe, an uplink (“UL”) subframe, and a “flexible” subframe. While the DL and UL subframes are preconfigured for each frame instance, the flexible subframes are dynamically allocated to be an uplink subframe in one instance of a frame and a downlink subframe in another instance of the frame.
15 Citations
14 Claims
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1. A radio terminal for use in a radio communications network, comprising:
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electronic circuitry configured to process data for or from a frame structure that includes one or more downlink subframes preconfigured as a downlink subframe, one or more uplink subframes preconfigured as an uplink subframe, and one or more flexible subframes, where a flexible subframe is dynamically allocated to be an uplink subframe in one instance of a frame and a downlink subframe in another frame instance; receive circuitry configured to receive and process information sent by a base station in a flexible subframe; transmit circuitry configured to; transmit information in an uplink direction using a flexible subframe as a uplink subframe; and transmit information directly to another radio terminal thereby bypassing the base station using a second flexible subframe. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for a radio terminal in a radio communications network, comprising:
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processing data, in electronic circuitry, for or from a frame structure that includes one or more downlink subframes preconfigured as a downlink subframe, one or more uplink subframes preconfigured as an uplink subframe, and one or more flexible subframes, where a flexible subframe is dynamically allocated to be an uplink subframe in one instance of a frame and a downlink subframe in another frame instance; receiving and processing with a receiver information sent by a base station in a flexible subframe; transmiting with a transmitter information in an uplink direction using a flexible subframe as a uplink subframe; and transmitting information directly to another radio terminal thereby bypassing the base station using a second flexible subframe. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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Specification