US 11,606,184 B2 · Indication of asymmetric default operating frequencies for bidirectional communications

Abstract

This disclosure provides systems, methods and apparatus, including computer programs encoded on computer storage media, for indication of asymmetric default operating frequencies (DOFs) for bidirectional communications. In one aspect, a first device may report to the second device that the first device is using either a same DOF for communications in different transmission directions or different DOFs for the different transmission directions. Based on the reported DOF(s), the second device may use beam correspondence-based beam relationships on the different transmission directions if the DOFs are the same and resource block allocations for the communications in both transmission directions are closely matched in frequencies. Alternatively, if the DOFs are different for the different transmission directions, the second device may adjust either a codebook parameter or may use an appropriate antenna panel. Additionally, or alternatively, the second device may direct the first device to use respective antenna subarrays with similar DOFs.

Claims30

Dependent claims

An apparatus for wireless communications, comprising:

at least one processor;
and
memory comprising instructions executable by the at least one processor to cause the apparatus to:
output an indication of:
a first default operating frequency for communications with a wireless device in a first transmission direction, wherein the first default operating frequency is associated with a first radio frequency chain and a first set of antenna elements of the apparatus,
a second default operating frequency for communications with the wireless device in a second transmission direction, wherein the second default operating frequency is associated with a second radio frequency chain and a second set of antenna elements of the apparatus, or
both;
and
output a message for transmission to the wireless device in the first transmission direction using the first default operating frequency and the first set of antenna elements, the second transmission direction using the second default operating frequency and the second set of antenna elements, or both.

6 more elements

An apparatus for wireless communications, comprising:

at least one processor;
and
memory comprising instructions executable by the at least one processor to cause the apparatus to:
obtain an indication of:
a first default operating frequency for communications with a wireless device in a first transmission direction, wherein the first default operating frequency is associated with a first radio frequency chain and a first set of antenna elements of the wireless device,
a second default operating frequency for communications with the wireless device in a second transmission direction, wherein the second default operating frequency is associated with a second radio frequency chain and a second set of antenna elements of the wireless device, or
both;
and
obtain a message from the wireless device according to one or more transmission parameters corresponding to the first default operating frequency, the second default operating frequency, or both.

6 more elements

A method for wireless communications at a first wireless device, comprising:

transmitting an indication of:
a first default operating frequency for communications with a second wireless device in a first transmission direction, wherein the first default operating frequency is associated with a first radio frequency chain and a first set of antenna elements of the first wireless device,
a second default operating frequency for communications with the second wireless device in a second transmission direction, wherein the second default operating frequency is associated with a second radio frequency chain and a second set of antenna elements of the first wireless device, or
both;
and
communicating with the second wireless device in the first transmission direction using the first default operating frequency and the first set of antenna elements, the second transmission direction using the second default operating frequency and the second set of antenna elements, or both.

3 more elements

A method for wireless communications at a first wireless device, comprising:

receiving an indication of:
a first default operating frequency for communications with a second wireless device in a first transmission direction, wherein the first default operating frequency is associated with a first radio frequency chain and a first set of antenna elements of the first wireless device,
a second default operating frequency for communications with the second wireless device in a second transmission direction, wherein the second default operating frequency is associated with a second radio frequency chain and a second set of antenna elements of the first wireless device, or
both;
and
communicating with the second wireless device according to one or more transmission parameters corresponding to the first default operating frequency, the second default operating frequency, or both.

3 more elements

Dependencies are inferred from the claim text.

Indication of asymmetric default operating frequencies for bidirectional communications

Life of this patent

Indication of asymmetric default operating frequencies for bidirectional communications

Life of this patent

Abstract

Claims30