UL transmission method for ENDC dual connection device

Patent metadata

Field	Value
Publication number	US-11324060-B2
Application number	US-202016896069-A
Country	US
Kind code	B2
Filing date	Jun 8, 2020
Priority date	Aug 16, 2019
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

One or more aspects of uplink transmissions for dual connectivity connection devices are disclosed. In some implementations, a method of wireless communication includes adjusting, by a user equipment (UE) while in a dual connectivity configuration, a threshold. The method also includes routing, by the UE, data to one of multiple radio link control (RLC) layers based on the adjusted threshold. The method further includes transmitting, by the UE, the data.

First claim

The invention claimed is:

1. A method of wireless communication, the method comprising:
determining, by a user equipment (UE):
a first value including a first number of bits sent by a primary radio link control (RLC) layer of the UE during a first time period, a first power efficiency value corresponding to the primary RLC layer, or a combination thereof; or
a second value including a second number of bits sent by a secondary RLC layer of the UE during a second time period, a second power efficiency value corresponding to the secondary RLC layer, or a combination thereof;

adjusting, by the UE while in a dual connectivity configuration and based on the determined first value or the determined second value, a threshold;
routing, by the UE, data to the one of multiple RLC layers based on the adjusted threshold; and
transmitting, by the UE, the data.

2. The method of claim 1 , wherein:
the dual connectivity configuration corresponds to an evolved universal terrestrial radio access (E-UTRA) new radio (NR) dual connectivity (ENDO) configuration;
the threshold comprises a ul-DataSplitThreshold;
the data comprises a packet data unit (PDU); or
a combination thereof.

3. The method of claim 1 , further comprising determining, by the UE, a first data rate corresponding to the primary RLC layer, a second data rate corresponding to the secondary RLC layer, or both, wherein:
the multiple RLC layers comprise a first RLC layer and a second RLC layer;
the first RLC layer and the second RLC layer belong to different cell groups; and
the first time period and the second time period are different time periods.

4. The method of claim 3 , wherein:
a first set of layers corresponds to a primary entity, the first set of layers comprising the first RLC layer; and
a second set of layers corresponds to a secondary entity, the second set of layers comprising the second RLC layer.

5. The method of claim 4 , wherein:
the data is routed from a packet data convergence protocol (PDCP) layer to the one of the multiple RLC layers; and
the PDCP corresponds to the primary entity.

6. The method of claim 1 , further comprising:
determining, by the UE, the first power efficiency value corresponding to the primary RLC layer and the second power efficiency value corresponding to the second RLC layer, wherein the adjusting is based on a RLC layer selected from among one of multiple RLC layers by a comparison of the first power efficiency value and the second power efficiency value.

7. The method of claim 6 , further comprising:
providing, by the UE, the data from an application layer to a PDCP layer; and
receiving, by the UE, a selection of one of multiple uplink transmission modes, wherein:
the selection is received via a user interface of the UE or determined by the UE;
the multiple uplink transmission modes include a power mode and a turbo mode; or
a combination thereof.

8. The method of claim 1 , further comprising:
determining, by the UE, a first power value associated with the primary RLC layer corresponding to the first time period; and
determining, by the UE, a second power value associated with the secondary RLC layer corresponding to the second time period.

9. The method of claim 8 , wherein:
the first power value corresponds to a transmit power of a primary medium access control (MAC) layer; and
the second power value corresponds to a transmit power of a secondary MAC layer.

10. An apparatus configured for wireless communication, the apparatus comprising:
at least one processor; and
a memory coupled to the at least one processor,
wherein the at least one processor is configured to:
determine, by a user equipment (UE):
a first value including a first number of bits sent by a primary radio link control (RLC) layer of the UE during a first time period, a first power efficiency value corresponding to the primary RLC layer, or a combination thereof; or
a second value including a second number of bits sent by a secondary RLC layer of the UE during a second time period, a second power efficiency value corresponding to the secondary RLC layer, or a combination thereof;

adjust, by the UE while in a dual connectivity configuration and based on the determined first value or the determined second value, a threshold;
route data to one of multiple RLC layers based on the adjusted threshold; and
initiate transmission of the data.

11. The apparatus of claim 10 , wherein the at least one processor is further configured to:
calculate the first power efficiency value; and
calculate the second power efficiency value.

12. The apparatus of claim 11 , wherein:
the first power efficiency value is calculated based on the first number of bits and a first power value; and
the second power efficiency value is calculated based on the second number of bits and a second power value.

13. The apparatus of claim 11 , wherein the at least one processor is further configured to:
perform a comparison based on the first power efficiency value and the second power efficiency value; and
select the one of the multiple RLC layers based on a result of the comparison; and
wherein the threshold is adjusted based on the one of the multiple RLC layers.

14. The apparatus of claim 10 , wherein the at least one processor is further configured to:
determine the first power efficiency value corresponding to the primary RLC layer and the second power efficiency value corresponding to the secondary RLC layer; and
route the data to the one of the multiple RLC layers based on a comparison between the first power efficiency value and the second power efficiency value.

15. The apparatus of claim 10 , wherein the at least one processor is further configured to:
calculate a first data rate corresponding to the first time period, the first data rate calculated based on the first number of bits; and
calculate a second data rate corresponding to the second time period, the second data rate calculated based on the second number of bits.

16. The apparatus of claim 15 , wherein the at least one processor is further configured to:
perform a comparison based on the first data rate and the second data rate; and
select the one of the multiple RLC layers based on a result of the comparison; and
wherein the threshold is adjusted based further on the one of the multiple RLC layers.

17. The apparatus of claim 10 , wherein the at least one processor is further configured to:
determine a first data rate corresponding to the primary RLC layer and a second data rate corresponding to the secondary RLC layer; and
route the data to the one of the multiple RLC layers based on a comparison between the first data rate and the second data rate.

18. A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:
program code executable by a computer for causing the computer to adjust, by a user equipment (UE) while in a dual connectivity configuration, a threshold;
program code executable by the computer for causing the computer to route data to one of multiple radio link control (RLC) layers based on the threshold;
program code executable by the computer for causing the computer to, based on the one of the multiple RLC layers corresponding to a primary entity:
increase a buffer status report (BSR) value of a BSR corresponding to the primary, entity to generate a modified BSR corresponding to the primary entity;
decrease a BSR value of a BSR corresponding to a secondary entity to generate a modified BSR corresponding to the seco

Assignees

• Qualcomm Inc

Inventors

• Wang Haojun
• Yang Kaikai
• Cui Zhenqing

Classifications

• H04W52/346

  distributing total power among users or channels · CPC title

• H04W52/365

  Power headroom reporting · CPC title

• H04W76/15 Primary

  Setup of multiple wireless link connections · CPC title

• H04W80/02

  Data link layer protocols · CPC title

• H04W40/24

  Connectivity information management, e.g. connectivity discovery or connectivity update · CPC title