Reference signal and signalling design for non-orthogonal multiple access with legacy user equipment as a base layer
AssigneeQUALCOMM Incorporated
InventorsJing SUN, Peter GAAL
Life of this patent
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Abstract
In accordance with various aspect of the present disclosure, apparatus may transmit a first data resource element for a first UE on a base layer. The first UE is unconfigured for NOMA communication. The apparatus may also transmits data for a second UE on an enhancement layer. The second UE is configured for NOMA communication. Additionally, the base layer is overlayed with the enhancement layer. The reference signal may include a cell specific reference signal. The apparatus may be further configured to receive a traffic power ratio for the second UE to be followed by the second UE when the second UE is a base layer UE in a NOMA communication.
Claims30
A method of Non-Orthogonal Multiple Access (NOMA) communications at a base station, the method comprising:
- transmitting a first data resource element for a first User Equipment (UE) on a base layer, the first UE unconfigured for NOMA communication;
- transmitting data for a second UE on an enhancement layer, the second UE configured for NOMA communication, wherein the base layer is overlayed with the enhancement layer;
- and
- transmitting a reference signal.
A method of Non-Orthogonal Multiple Access (NOMA) communications at a first User Equipment (UE), the first UE configured for NOMA communication, the method comprising:
- receiving a first data resource element on a base layer, the first data resource element configured for a second UE, the second UE not preconfigured for NOMA communication;
- receiving data for the first UE on an enhancement layer, the base layer overlayed with the enhancement layer;
- receiving a reference signal;
- and
- canceling the first data resource element for the second UE and decoding the data for the first UE.
A base station for Non-Orthogonal Multiple Access (NOMA) communications, comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- transmit a first data resource element for a first User Equipment (UE) on a base layer, the first UE unconfigured for NOMA communication;
- transmit data for a second UE on an enhancement layer, the second UE configured for NOMA communication, wherein the base layer is overlayed with the enhancement layer;
- and
- transmit a reference signal.
An apparatus, the apparatus comprising a first User Equipment (UE) configured for NOMA communication, the first UE comprising:
- a memory;
- and
- at least one processor coupled to the memory and configured to:
- receive a first data resource element on a base layer, the first data resource element configured for a second UE, the second UE not preconfigured for NOMA communication;
- receive data for the first UE on an enhancement layer, the base layer overlayed with the enhancement layer;
- receive a reference signal;
- and
- cancel the first data resource element for the second UE and decode the data for the first UE.
Dependencies are inferred from the claim text.