Tag identifier mapping in a code division multiplexing communication
AssigneeQUALCOMM Incorporated
InventorsRaviteja Patchava, Piyush Gupta
Life of this patent
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Abstract
In some implementations, a reader receives a first message (e.g., msg1) from an ambient internet of things (A-IoT) device indicating a sequence of bits. The reader generates a second message (e.g., msg2) indicating a tag identifier (ID) including a sequence identifier associated with the sequence of bits and a sampling frequency offset (SFO) identifier associated with the with the first message. The reader transmits the second message to the device, where the tag ID is indicative of a resource allocation for the device to transmit a third message (e.g., msg3) to the reader. The tag ID is 16 bits. The reader and device are communicating in a code division multiplexing (CDM) communication system.
Claims20
An apparatus for wireless communication, comprising:
- one or more memories comprising instructions;
- and
- one or more processors coupled with the one or more memories and individually or collectively operable to execute the instructions to cause the apparatus to:
- receive a first message from a device indicating a sequence of bits;
- generate a second message indicating a tag identifier comprising a sequence identifier associated with the sequence of bits and an indication of a sampling frequency offset associated with the first message;
- and
- transmit the second message to the device, wherein the tag identifier is indicative of a resource allocation for the device to transmit a third message to the apparatus.
A method of wireless communication performed at a wireless node, comprising:
- receiving a first message from a device indicating a sequence of bits;
- generating a second message indicating a tag identifier comprising a sequence identifier associated with the sequence of bits and an indication of a sampling frequency offset associated with the first message;
- and
- transmitting the second message to the device, wherein the tag identifier is indicative of a resource allocation for the device to transmit a third message to the wireless node.
A non-transitory computer-readable medium storing code for wireless communications, the code comprising instructions executable by one or more processors to:
- receive a first message from a device indicating a sequence of bits;
- generate a second message indicating a tag identifier comprising a sequence identifier associated with the sequence of bits and an indication of a sampling frequency offset associated with the first message;
- and
- transmit the second message to the device, wherein the tag identifier is indicative of a resource allocation for the device to transmit a third message to a wireless node.
Dependencies are inferred from the claim text.