Methods and apparatus for combining received uplink transmissions
Methods and apparatus for combining received uplink transmissions. In an embodiment, a method is provided that includes receiving a descrambled resource element associated with selected second channel state information (CSI2) and receiving a descrambling sequence used to generate the descrambled RE. The method also includes rescrambling the descrambled RE using the descrambling sequence to generate a rescrambled RE and modifying the descrambling sequence to generate a modified descrambling sequence. The method also includes descrambling the rescrambled RE with the modified descrambling sequence to generate a modified descrambled RE and accumulating the modified descrambled RE to form a combined CSI2 value.
1. A method, comprising:
receiving descrambled resource elements (REs) comprising selected second channel state information (CSI2);
receiving descrambling sequences used to generate the descrambled REs;
rescrambling the descrambled REs using the descrambling sequences to generate rescrambled REs;
modifying the descrambling sequences to generate modified descrambling sequences;
descrambling the rescrambled REs with the modified descrambling sequences to generate modified descrambled REs; and
accumulating the modified descrambled REs to form combined CSI2 values.
2. The method of claim 1 , wherein each of the descrambled REs is derived from a symbol received in a new radio (NR) uplink transmission.
3. The method of claim 1 , further comprising determining that a hypothesis value associated with the selected CSI2 information is within a selected range.
4. The method of claim 3 , further comprising storing the combined CSI2 values in a memory.
5. The method of claim 1 , further comprising performing the method for multiple symbols.
6. The method of claim 1 , further comprising outputting the combined CSI2 values to a decoder.
7. An apparatus, comprising:
a processor that receives descrambled resource elements (REs) associated with selected second channel state information (CSI2), and receives descrambling sequences used to generate the descrambled REs; and
a hypothesis processor that rescrambles the descrambled REs using the descrambling sequences to generate rescrambled REs, modifies the descrambling sequences to generate modified descrambling sequences, descrambles the rescrambled REs with the modified descrambling sequences to generate modified descrambled REs, and accumulates the modified descrambled REs to form combined CSI2 values.
8. The apparatus of claim 7 , wherein each of the descrambled REs is derived from a symbol received in a new radio (NR) uplink transmission.
9. The apparatus of claim 7 , wherein the hypothesis processor determines that a hypothesis value associated with the selected CSI2 information is within a selected range.
10. The apparatus of claim 9 , wherein the hypothesis value is received from a resource element identifier.
11. The apparatus of claim 7 , wherein the hypothesis processor stores the combined CSI2 values in a memory.
12. The apparatus of claim 7 , wherein the hypothesis processor forms the combined CSI2 values over multiple symbols.
13. The apparatus of claim 7 , wherein the descrambled REs are received from a descrambler.
14. The apparatus of claim 7 , wherein the hypothesis processor outputs the combined CSI2 value to a decoder.
15. An apparatus, comprising:
means for receiving descrambled resource elements (REs) comprising selected second channel state information (CSI2);
means for receiving descrambling sequences used to generate the descrambled REs;
means for rescrambling the descrambled REs using the descrambling sequences to generate rescrambled REs;
means for modifying the descrambling sequences to generate modified descrambling sequences;
means for descrambling the rescrambled REs with the modified descrambling sequences to generate modified descrambled REs; and
means for accumulating the modified descrambled REs to form combined CSI2 values.
16. The apparatus of claim 15 , wherein each of the descrambled REs is derived from a symbol received in a new radio (NR) uplink transmission.
17. The apparatus of claim 15 , further comprising means for determining that a hypothesis value associated with the selected CSI2 information is within a selected range.
18. The apparatus of claim 17 , further comprising means for storing the combined CSI2 values.
19. The apparatus of claim 15 , further comprising means for forming the combined CSI2 value over multiple symbols.
20. The apparatus of claim 15 , further comprising means for outputting the combined CSI2 values to a decoder.