IP Library › Granted Patent US 11,638,218

Granted Patent B2

US 11,638,218 · App. 16/893,004 · Granted Apr 25, 2023

System and method for controlling beam type in signal transmission

Inventors: Ruhua He (San Diego, CA); Shrenik Patel (San Diego, CA); Sang-June Park (San Diego, CA); Mihir Vijay Laghate (San Diego, CA); Raghu Narayan Challa (San Diego, CA)

Assignee: QUALCOMM Incorporated

H04W52/146 H04B17/318 H04L1/0004 H04L5/0092 H04W52/241 H04W52/42 H04W52/52 H04W72/046 H04W72/0473

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Quick Facts

Patent No.: US 11,638,218
App. No.: 16/893,004
Granted: Apr 25, 2023
Kind: B2

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USPTO Patent Center↗ Full Patent PDF↗

Abstract

In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be configured to determine a PSD based on a transmission power associated with transmission of an uplink signal. The apparatus may be configured to select one of a first beam or a second beam for the transmission of the uplink signal based on the PSD. The second beam may be wider than the first beam, and may be generated by a single antenna element of the apparatus. The apparatus may be configured to transmit the uplink signal using the selected one of the first beam or the second beam.

Claims (50)

1. A method of wireless communication by a user equipment (UE), the method comprising:

selecting one of a first beam or a second beam that is wider than the first beam for transmission of an uplink signal when a power spectrum density (PSD) satisfies at least one threshold or the second beam when the PSD fails to satisfy the at least one threshold, the PSD being based on a transmission power associated with the transmission of the uplink signal; and

transmitting the uplink signal using the selected one of the first beam or the second beam.

2. The method of claim 1 , wherein the first beam is generated by a plurality of antenna elements of the UE, and wherein the second beam is generated by a single antenna element of the UE.

3. The method of claim 1 , wherein the selecting one of the first beam or the second beam that is wider than the first beam for the transmission of the uplink signal when the PSD satisfies the at least one threshold or the second beam when the PSD fails to satisfy the at least one threshold comprises:

comparing the PSD with a first threshold of the at least one threshold;

selecting the second beam for the transmission of the uplink signal when the PSD is less than the first threshold;

comparing the PSD with a second threshold of the at least one threshold that is relatively greater than the first threshold; and

selecting the first beam or the second beam for the transmission of the uplink signal based on a transmission power associated with the uplink signal when the PSD is greater than the second threshold.

4. The method of claim 3 , wherein, when the PSD is between the first threshold and the second threshold, the selecting one of the first beam or the second beam is based on which of the first beam or the second beam is used for transmission of a previous uplink signal.

5. The method of claim 1 , further comprising:

increasing gain associated with the transmission of the uplink signal when the second beam is selected for the transmission of the uplink signal.

6. The method of claim 1 , further comprising:

calculating the transmission power associated with the transmission of the uplink signal based on at least one of a modulation and coding scheme (MCS) associated with the transmission of the uplink signal, a bandwidth part associated with the transmission of the uplink signal, a power control command received from a base station, or one or more measurements associated with downlink signals received from the base station,

wherein the PSD is determined based on the calculated transmission power divided by a bandwidth of the uplink signal.

7. A user equipment (UE), comprising:

means for selecting one of a first beam or a second beam that is wider than the first beam for transmission of an uplink signal when a power spectrum density (PSD) satisfies at least one threshold or the second beam when the PSD fails to satisfy the at least one threshold, the PSD being based on a transmission power associated with the transmission of the uplink signal; and

means for transmitting the uplink signal using the selected one of the first beam or the second beam.

8. The UE of claim 7 , wherein the first beam is generated by a plurality of antenna elements of the UE, and wherein the second beam is generated by a single antenna element of the UE.

9. The UE of claim 7 , wherein the means for selecting one of the first beam or the second beam that is wider than the first beam for the transmission of the uplink signal when the PSD satisfies the at least one threshold or the second beam when the PSD fails to satisfy the at least one threshold is configured for:

comparing the PSD with a first threshold of the at least one threshold;

selecting the second beam for the transmission of the uplink signal when the PSD is less than the first threshold;

comparing the PSD with a second threshold of the at least one threshold that is relatively greater than the first threshold; and

10. The UE of claim 9 , wherein, when the PSD is between the first threshold and the second threshold, the selecting one of the first beam or the second beam is based on which of the first beam or the second beam is used for transmission of a previous uplink signal.

11. The UE of claim 7 , further comprising:

means for increasing gain associated with the transmission of the uplink signal when the second beam is selected for the transmission of the uplink signal.

12. The UE of claim 7 , further comprising:

means for calculating the transmission power associated with the transmission of the uplink signal based on at least one of a modulation and coding scheme (MCS) associated with the transmission of the uplink signal, a bandwidth part associated with the transmission of the uplink signal, a power control command received from a base station, or one or more measurements associated with downlink signals received from the base station,

wherein the PSD is determined based on the calculated transmission power divided by a bandwidth of the uplink signal.

13. A user equipment (UE), comprising:

a memory; and

at least one processor coupled to the memory and configured to:

select one of a first beam or a second beam that is wider than the first beam for transmission of an uplink signal when a power spectrum density (PSD) satisfies at least one threshold or the second beam when the PSD fails to satisfy the at least one threshold, the PSD being based on a transmission power associated with the transmission of the uplink signal; and

transmit the uplink signal using the selected one of the first beam or the second beam.

14. The UE of claim 13 , wherein the first beam is generated by a plurality of antenna elements of the UE, and wherein the second beam is generated by a single antenna element of the UE.

15. The UE of claim 13 , wherein the selection of one of the first beam or the second beam that is wider than the first beam for the transmission of the uplink signal when the PSD satisfies the at least one threshold or the second beam when the PSD fails to satisfy the at least one threshold comprises to:

compare the PSD with a first threshold of the at least one threshold;

select the second beam for the transmission of the uplink signal when the PSD is less than the first threshold;

compare the PSD with a second threshold of the at least one threshold that is relatively greater than the first threshold; and

select the first beam or the second beam for the transmission of the uplink signal based on a transmission power associated with the uplink signal when the PSD is greater than the second threshold.

16. The UE of claim 15 , wherein, when the PSD is between the first threshold and the second threshold, the selection of one of the first beam or the second beam is based on which of the first beam or the second beam is used for transmission of a previous uplink signal.

17. The UE of claim 13 , wherein the at least one processor is further configured to:

increase gain associated with the transmission of the uplink signal when the second beam is selected for the transmission of the uplink signal.

18. The UE of claim 13 , wherein the at least one processor is further configured to:

calculate the transmission power associated with the transmission of the uplink signal based on at least one of a modulation and coding scheme (MCS) associated with the transmission of the uplink signal, a bandwidth part associated with the transmission of the uplink signal, a power control command received from a base station, or one or more measurements associated with downlink signals received from the base station,

wherein the PSD is determined based on the calculated transmission power divided by a bandwidth of the uplink signal.

19. A non-transitory, computer-readable medium storing computer-executable code for wireless communication by a user equipment (UE), comprising code to:

transmit the uplink signal using the selected one of the first beam or the second beam.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 6, 2021

From: HE, RUHUA; PATEL, SHRENIK; PARK, SANG-JUNE; LAGHATE, MIHIR VIJAY; CHALLA, RAGHU NARAYAN

To: QUALCOMM INCORPORATED

Reel/Frame 055843/0332 →

Continuity (2)

Provisional Application 62859620 · Jun 10, 2019

Related Publication 20200389850A1 · Dec 10, 2020

Cited By (1)

US 12,463,696