Beam information for independent links

Patent metadata

Field	Value
Publication number	US-11509569-B2
Application number	US-201715659598-A
Country	US
Kind code	B2
Filing date	Jul 25, 2017
Priority date	Aug 22, 2016
Publication date	Nov 22, 2022
Grant date	Nov 22, 2022

Abstract

Various aspects of the disclosure relate to beam information for independent links. For example, beam information for one link may be sent on at least one other link. In some aspects, the independent links may involve a first device (e.g., a user equipment) communicating via different independent links with different devices (e.g., transmit receive points (TRPs) or sets of TRPs). For example, the first device may communicate with a second device (e.g., a TRP) via a first link and communicate with a third device (e.g., a TRP) via a second link. In some scenarios, one link can indicate beam switching for at least one other link. In some scenarios, one link can indicate link recovery for at least one other link. In some scenarios, one link can indicate link failure for at least one other link.

First claim

What is claimed is:

1. A method of communication for an apparatus, comprising:
communicating data via a first beamformed wireless communication link; and
communicating beam information for a second beamformed wireless communication link via the first beamformed wireless communication link,
the beam information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, comprising:
an indication of a preferred beam for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link.

2. The method of claim 1 , wherein the beam information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, further comprises:
an indication that at least one beam for at least one beamformed wireless communication link is being switched, which is communicated via the first beamformed wireless communication link.

3. The method of claim 1 , wherein the beam information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, further comprises:
an indication that a user equipment (UE) is switching to another beam or beam direction for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link.

4. The method of claim 1 , wherein the beam information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, further comprises:
an indication of a failure event on the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link.

5. The method of claim 1 , wherein the beam information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, further comprises
a confirmation of a beam switch for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link.

6. The method of claim 1 , further comprising:
communicating first transport blocks via the first beamformed wireless communication link,
wherein the first transport blocks are processed independently of second transport blocks communicated via the second beamformed wireless communication link.

7. The method of claim 6 , wherein error processing of the first transport blocks is independent of error processing of the second transport blocks.

8. The method of claim 6 , wherein cyclic redundancy check (CRC) processing of the first transport blocks is independent of CRC processing of the second transport blocks.

9. The method of claim 6 , wherein:
the communication of the first transport blocks is via a first beam; and
the communication of the second transport blocks is via a second beam.

10. The method of claim 1 , further comprising:
sending the beam information for the second beamformed wireless communication link to another apparatus that is configured to communicate via the second beamformed wireless communication link.

11. The method of claim 1 , further comprising:
communicating other data via the second beamformed wireless communication link.

12. The method of claim 11 , wherein:
the communication via the first beamformed wireless communication link uses a first antenna sub-array of the apparatus; and
the communication via the second beamformed wireless communication link uses a second antenna sub-array of the apparatus.

13. The method of claim 11 , wherein:
the communication via the first beamformed wireless communication link uses a first radio frequency (RF) chain of the apparatus; and
the communication via the second beamformed wireless communication link uses a second RF chain of the apparatus.

14. A method of communication for an apparatus, comprising:
communicating data via a first beamformed wireless communication link; and
communicating beam information for a second beamformed wireless communication link via the first beamformed wireless communication link,
the beam information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, comprising:
a random access channel (RACH) message for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link;
the RACH message for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, being indicative of a beam failure on the second wireless communication link.

15. A method of communication for an apparatus, comprising:
communicating data via a first beamformed wireless communication link; and
communicating beam information for a second beamformed wireless communication link via the first beamformed wireless communication link,
the beam information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, comprising:
beam recovery information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link.

16. A method of communication for an apparatus, comprising:
communicating data via a first beamformed wireless communication link; and
communicating beam information for a second beamformed wireless communication link via the first beamformed wireless communication link,
the beam information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, comprising:
a scheduling request for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link;
the scheduling request for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, being indicative of a beam failure on the second wireless communication link.

17. A method of communication for an apparatus, comprising:
communicating data via a first beamformed wireless communication link; and
communicating beam information for a second beamformed wireless communication link via the first beamformed wireless communication link,
the beam information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, comprising:
an indication to send new beam pairing information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link.

18. A method of communication for an apparatus, comprising:
communicating data via a first beamformed wireless communication link; and
communicating beam information for a second beamformed wireless communication link via the first beamformed wireless communication link,
the beam information for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link, comprising:
a beam identifier for the second beamformed wireless communication link, which is communicated via the first beamformed wireless communication link.

19. A method of communication for an apparatus, comprising:
communicating data via a first beamformed wireless communication link; and
communicati

Assignees

• Qualcomm Inc

Inventors

• Luo Tao
• Montojo Juan
• Kadous Tamer
• Li Junyi
• Zhang Xiaoxia
• Sun Jing
• Yoo Taesang
• Mallik Siddhartha

Classifications

• H04W72/54

  based on quality criteria · CPC title

• H04W72/53

  based on regulatory allocation policies · CPC title

• H04W72/52

  based on load · CPC title

• H04W72/20

  Control channels or signalling for resource management · CPC title

• H04W72/21

  in the uplink direction of a wireless link, i.e. towards the network · CPC title