Asynchronous non-orthogonal multiple access for ambient internet of things (AIoT) devices
AssigneeLenovo (United States) Inc.
InventorsAbir Ben Hadj Fredj, Karthikeyan Ganesan, Ali Ramadan Ali
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Abstract
Various aspects of the present disclosure relate to performing non-orthogonal multiple access (NOMA) for ambient Internet of Things (AIoT) devices. For example, each AIoT device of a group of AIoT devices (e.g., a group of AIoT devices associated with a reader device) may append to transmitted data a prefix at the start of one or more chips with the transmitted data. An associated network entity may determine a length or duration of the prefix (or prefixes). In doing so, the NOMA mechanism enables the AIoT devices to utilize NOMA when transmitting data.
Claims12
A user equipment (UE) for wireless communication, comprising:
- at least one memory;
- and
- at least one processor coupled with the at least one memory and configured to cause the UE to:
- determine one or more groups of chips for transmission over a physical device-to-reader channel (PDRCH),
- wherein the transmission comprises a preamble and a postamble, and
- wherein the one or more groups of chips for transmission over the PDRCH are located between the preamble and the postamble;
- append a prefix to each group of chips of the one or more groups of chips,
- wherein the prefix is appended to a beginning chip of each group of chips;
- and
- perform the transmission on the PDRCH over one or more non-orthogonal resources.
A processor for wireless communication, comprising:
- at least one controller coupled with the at least one memory and configured to cause the processor to:
- determine one or more groups of chips for transmission over a physical device-to-reader channel (PDRCH),
- wherein the transmission comprises a preamble and a postamble, and
- wherein the one or more groups of chips for transmission over the PDRCH are located between the preamble and the postamble;
- append a prefix to each group of chips of the one or more groups of chips,
- wherein the prefix is appended to a beginning chip of each group of chips;
- and
- perform the transmission on the PDRCH over non-orthogonal resources.
Dependencies are inferred from the claim text.