Network coding to mitigate blockage with spatial division multiplexing beams

Patent metadata

Field	Value
Publication number	US-12212412-B2
Application number	US-202117204861-A
Country	US
Kind code	B2
Filing date	Mar 17, 2021
Priority date	Mar 17, 2021
Publication date	Jan 28, 2025
Grant date	Jan 28, 2025

Abstract

Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive control signaling indicating a network coding configuration for a set of transmit beams, each transmit beam in the set of transmit beams being spatial division multiplexed with respect to the other transmit beams of the set. The UE may identify based at least in part on the control signaling, a first set of one or more transmit beams of the set of transmit beams carrying parity information for a second set of one or more transmit beams in the set of transmit beams. The UE may perform beamformed communications over the set of transmit beams in accordance with the network coding configuration and the parity information.

First claim

What is claimed is:

1. An apparatus for wireless communication at a user equipment (UE), comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
receive an indication of network coding for a plurality of transmit beams,
each transmit beam in the plurality of transmit beams being spatial division multiplexed with respect to other transmit beams in the plurality of transmit beams, wherein the plurality of transmit beams comprises a first set of one or more transmit beams and a second set of one or more transmit beams;
identify, based at least in part on the indicated network coding, the first set of one or more transmit beams carrying parity information and first information, wherein the first information is unique to the first set of one or more transmit beams and the parity information is associated with recovery of second information carried on the second set of one or more transmit beams, wherein the parity information comprises an exclusive or (XOR) of the second information transmitted on the second set of one or more transmit beams; and
perform beamformed communications over the plurality of transmit beams using the network coding and the parity information.

2. The apparatus of claim 1 , wherein the instructions to perform beamformed communications over the plurality of transmit beams are further executable by the processor to cause the apparatus to:
transmit the parity information on the first set of one or more transmit beams.

3. The apparatus of claim 2 , wherein the instructions are further executable by the processor to cause the apparatus to:
generate the parity information in accordance with a network coding scheme indicated in the network coding.

4. The apparatus of claim 3 , wherein the network coding scheme comprises an XOR scheme.

5. The apparatus of claim 1 , wherein the instructions to perform beamformed communications over the plurality of transmit beams are further executable by the processor to cause the apparatus to:
receive the parity information on the first set of one or more transmit beams.

6. The apparatus of claim 5 , wherein the instructions are further executable by the processor to cause the apparatus to:
decode information from a first transmit beam of the second set of one or more transmit beams using the parity information received on the first set of one or more transmit beams and information decoded from at least a second transmit beam of the second set of one or more transmit beams, wherein decoding the information from the first transmit beam is in accordance with a network coding scheme indicated in the network coding.

7. The apparatus of claim 6 , wherein the network coding scheme comprises an XOR scheme.

8. The apparatus of claim 6 , wherein the instructions to decode the information from the first transmit beam of the second set of one or more transmit beams are further executable by the processor to cause the apparatus to:
iteratively decode a plurality of beams of the second set of one or more transmit beams, including performing a soft decision decoding procedure using the parity information transmitted on the first set of one or more transmit beams and a decoding result for at least the second transmit beam of the second set of one or more transmit beams.

9. The apparatus of claim 6 , wherein decoding the information from the first transmit beam of the second set of one or more transmit beams is further based at least in part on a retransmission of the information from the first transmit beam.

10. The apparatus of claim 1 , wherein the network coding is specific to one or more of a control channel or a data channel.

11. The apparatus of claim 1 , wherein the network coding is performed at one or more of a channel bit level or an information bit level.

12. An apparatus for wireless communication at a network device, comprising:
a processor;
memory coupled with the processor; and
instructions stored in the memory and executable by the processor to cause the apparatus to:
identify, for a user equipment (UE), a first set of one or more transmit beams of a plurality of transmit beams carrying parity information and first information, wherein the first information is unique to the first set of one or more transmit beams and the parity information is associated with recovery of second information carried on a second set of one or more transmit beams in the plurality of transmit beams, each transmit beam in the plurality of transmit beams being spatial division multiplexed with respect to other transmit beams in the plurality of transmit beams, and wherein the parity information comprises an exclusive or (XOR) of the second information transmitted on the second set of one or more transmit beams;
transmit, to the UE and based at least in part on the identifying, an indication of network coding for the plurality of transmit beams; and
perform beamformed communications over the plurality of transmit beams using the network coding and the parity information.

13. The apparatus of claim 12 , wherein the instructions to perform beamformed communications over the plurality of transmit beams are further executable by the processor to cause the apparatus to:
transmit the parity information on the first set of one or more transmit beams.

14. The apparatus of claim 13 , wherein the instructions are further executable by the processor to cause the apparatus to:
generate the parity information in accordance with a network coding scheme indicated in the network coding.

15. The apparatus of claim 14 , wherein the network coding scheme comprises an XOR scheme.

16. The apparatus of claim 12 , wherein the instructions to perform beamformed communications over the plurality of transmit beams are further executable by the processor to cause the apparatus to:
receive the parity information on the first set of one or more transmit beams.

17. The apparatus of claim 16 , wherein the instructions are further executable by the processor to cause the apparatus to:
decode information from a first transmit beam of the second set of one or more transmit beams using the parity information received on the first set of one or more transmit beams and information decoded from at least a second transmit beam of the second set of one or more transmit beams, wherein decoding the information from the first transmit beam is in accordance with a network coding scheme indicated in the network coding.

18. The apparatus of claim 17 , wherein the network coding scheme comprises an XOR scheme.

19. The apparatus of claim 17 , wherein the instructions to decode the information from the first transmit beam of the second set of one or more transmit beams are further executable by the processor to cause the apparatus to:
iteratively decode a plurality of beams of the second set of one or more transmit beams, including performing a soft decision decoding procedure using the parity information transmitted on the first set of one or more transmit beams and a decoding result for at least the second transmit beam of the second set of one or more transmit beams.

20. The apparatus of claim 17 , wherein decoding the information from the first transmit beam of the second set of one or more transmit beams is further based at least in part on a retransmission of the information from the first transmit beam.

21. The apparatus of claim 12 , wherein the network coding is specific to one or mor

Assignees

• Qualcomm Inc

Inventors

• Landis Shay
• Berliner Ran
• Horn Idan Michael
• Dallal Yehonatan

Classifications

• H04W72/046

  the resource being in the space domain, e.g. beams · CPC title

• H04L1/0076

  Distributed coding, e.g. network coding, involving channel coding (coding in both space and time H04L1/0618; cooperative diversity H04B7/022) · CPC title

• H04L1/0009 Primary

  by adapting the channel coding (H04L1/1812 takes precedence) · CPC title

• H04B7/0408 Primary

  using two or more beams, i.e. beam diversity · CPC title