Antenna switch diversity or cyclic delay diversity selection

Patent metadata

Field	Value
Publication number	US-11444672-B2
Application number	US-202117202922-A
Country	US
Kind code	B2
Filing date	Mar 16, 2021
Priority date	Mar 16, 2020
Publication date	Sep 13, 2022
Grant date	Sep 13, 2022

Abstract

Aspects relate to mechanisms for a wireless communication device to select between a cyclic delay diversity mode and an antenna switch diversity mode for transmission of a signal based on at least one parameter associated with communication over a wireless channel. The parameter(s) may include a channel estimation parameter associated with the wireless channel, a communication parameter associated with at least one communication on the wireless channel, or a combination thereof.

First claim

What is claimed is:

1. A method of wireless communication at a wireless communication device, the method comprising:
obtaining a plurality of parameters associated with communication by the wireless communication device over a wireless channel, wherein each of the plurality of parameters corresponds to a different channel estimation parameter associated with the wireless channel or a different communication parameter associated with at least one communication on the wireless channel;
selecting a transmission mode based on a combination of the plurality of parameters, wherein the transmission mode comprises one of an antenna switch diversity mode or a cyclic delay diversity (CDD) mode; and
transmitting a signal using the selected transmission mode.

2. The method of claim 1 , wherein the channel estimation parameter comprises one or more of a Doppler spread, a delay spread, an antenna imbalance between at least a first antenna and a second antenna, or an antenna correlation between at least the first antenna and the second antenna.

3. The method of claim 1 , wherein the communication parameter comprises one or more of a modulation and coding scheme (MCS) or an allocated resource block (RB) size.

4. The method of claim 1 , wherein the obtaining the plurality of parameters further comprises:
determining a respective combined value for at least one parameter of the plurality of parameters associated with a set of signals communicated over a time window to produce at least one combined parameter, wherein the selecting the transmission mode further comprises:
selecting the transmission mode based on the respective combined value for the at least one parameter.

5. The method of claim 1 , further comprising:
applying a respective weight to each of the plurality of parameters to produce a plurality of weighted parameters, wherein the selecting the transmission mode further comprises:
selecting the transmission mode based on the plurality of weighted parameters.

6. The method of claim 1 , wherein the transmitting the signal using the selected transmission mode further comprises:
transmitting the signal on a sidelink to another wireless communication device.

7. A wireless communication device in a wireless communication network, comprising:
a transceiver coupled to at least a first antenna and a second antenna;
a memory; and
a processor coupled to the transceiver and the memory, wherein the processor and the memory are configured to:
obtain a plurality of parameters associated with communication by the wireless communication device over a wireless channel, wherein each of the plurality of parameters corresponds to a different channel estimation parameter associated with the wireless channel or a different communication parameter associated with at least one communication on the wireless channel;
select a transmission mode based on a combination of the plurality of parameters, wherein the transmission mode comprises one of an antenna switch diversity mode or a cyclic delay diversity (CDD) mode; and
transmit a signal using the selected transmission mode via the transceiver.

8. The wireless communication device of claim 7 , wherein the channel estimation parameter comprises one or more of a Doppler spread, a delay spread, an antenna imbalance between at least the first antenna and the second antenna, or an antenna correlation between at least the first antenna and the second antenna.

9. The wireless communication device of claim 7 , wherein the communication parameter comprises one or more of a modulation and coding scheme (MCS) or an allocated resource block (RB) size.

10. The wireless communication device of claim 7 , wherein the processor and the memory are further configured to:
determine a respective combined value for at least one parameter of the plurality of parameters associated with a set of signals communicated over a time window to produce at least one combined parameter; and
select the transmission mode based on the respective combined value for the at least one parameter.

11. The wireless communication device of claim 7 , wherein the processor and the memory are further configured to:
apply a respective weight to each of the plurality of parameters to produce a plurality of weighted parameters; and
select the transmission mode based on the plurality of parameters.

12. The wireless communication device of claim 7 , wherein the processor and the memory are further configured to transmit the signal on a sidelink to another wireless communication device.

13. A wireless communication device in a wireless communication network, comprising:
means for obtaining a plurality of parameters associated with communication by the wireless communication device over a wireless channel, wherein each of the plurality of parameters corresponds to a different channel estimation parameter associated with the wireless channel or a different communication parameter associated with at least one communication on the wireless channel;
means for selecting a transmission mode based on a combination of the plurality of parameters, wherein the transmission mode comprises one of an antenna switch diversity mode or a cyclic delay diversity (CDD) mode; and
means for transmitting a signal using the selected transmission mode.

14. The wireless communication device of claim 13 , wherein the channel estimation parameter comprises one or more of a Doppler spread, a delay spread, an antenna imbalance between at least a first antenna and a second antenna, or an antenna correlation between at least the first antenna and the second antenna.

15. The wireless communication device of claim 13 , wherein the communication parameter comprises one or more of a modulation and coding scheme (MCS) or an allocated resource block (RB) size.

16. The wireless communication device of claim 13 , wherein the means for obtaining plurality of parameters further comprises:
means for determining a respective combined value for at least one parameter of the plurality of parameters associated with a set of signals communicated over a time window to produce at least one combined parameter, wherein the means for selecting the transmission mode further comprises:
means for selecting the transmission mode based on the respective combined value for the at least one parameter.

17. The wireless communication device of claim 13 , further comprising:
means for applying a respective weight to each of the plurality of parameters to produce a plurality of weighted parameters, wherein the means for selecting the transmission mode further comprises:
means for selecting the transmission mode based on the plurality of weighted parameters.

18. The wireless communication device of claim 13 , wherein the means for transmitting the signal using the selected transmission mode further comprises:
means for transmitting the signal on a sidelink to another wireless communication device.

19. A non-transitory computer-readable medium having stored therein instructions executable by one or more processors of a wireless communication device to:
obtain a plurality of parameters associated with communication by the wireless communication device over a wireless channel, wherein each of the plurality of parameters corresponds to a different channel estimation parameter associated with the wireless channel or a different communication parameter associated with at least one communication on the wireless channel;
select a transmission mode based on a combination of the plurality of parameters, wher

Assignees

• Qualcomm Inc

Inventors

• Berger Peer
• Landis Shay
• Ben-Ari Moshe
• Touboul Assaf
• Bar-Or Tillinger Amit
• Levitsky Michael
• Park Cheol Hee
• Weissman Haim
• Park Jungsik
• Yeo In Hyuck

Classifications

• H04B7/0689 Primary

  using different transmission schemes, at least one of them being a diversity transmission scheme · CPC title

• H04B7/0671 Primary

  using different delays between antennas · CPC title

• H04B7/0602

  using antenna switching (H04B7/0686 takes precedence; antenna beam directivity switching H01Q3/24) · CPC title

• H04L5/0023

  Time-frequency-space · CPC title