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Uplink power control prioritization in dual connectivity

A technology of priority and transmission power, applied in the field of wireless communication, can solve problems such as power limitation

Pending Publication Date: 2021-09-28
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in some cases, a UE operating in dual connectivity mode may be power limited (i.e., the UE may only have limited power for transmitting uplink signals), and for the UE, it is determined how to Allocating power for simultaneous uplink transmissions to multiple base stations can be challenging

Method used

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  • Uplink power control prioritization in dual connectivity
  • Uplink power control prioritization in dual connectivity
  • Uplink power control prioritization in dual connectivity

Examples

Experimental program
Comparison scheme
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example 1

[0131] Example 1: A method for wireless communication at a UE, comprising: identifying that the UE is operating in dual connectivity with a set of primary cells and a set of secondary cells; SCell group minimum reserved transmit power for group transmissions to determine the SCell group reserved transmit power for allocation across the SCell group component carriers during a transmission occasion; based at least in part on the SCell group reserved transmit power and channel type priority to allocate the primary cell group reserved transmission power between scheduled transmissions to the primary cell group during the transmission occasion; to allocate the secondary cell group between scheduled transmissions to the secondary cell group during the transmission occasion reserving transmission power; and communicating with the primary cell group and with the secondary cell group according to the power allocation.

example 2

[0132] Example 2: The method of example 1, further comprising: identifying a minimum secondary cell group reserved transmission power for transmission from the UE to the secondary cell group during the transmission occasion; and determining the primary cell group reserved transmission power, the primary The cell group reserves transmit power for allocation across component carriers of the primary cell group during transmission occasions.

example 3

[0133] Example 3: The method according to Example 1 or 2, wherein determining the reserved transmission power of the primary cell group includes: determining that the total scheduled transmission power of the primary cell group is less than or equal to the difference between the total available transmission power and the minimum reserved transmission power of the secondary cell group and setting the primary cell group reserved transmission power equal to the primary cell group total scheduled transmission power based at least in part on the primary cell group total scheduled transmission power being less than or equal to the difference.

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Abstract

Methods, systems, and devices for wireless communication are described. Generally, the described techniques provide for efficiently performing dynamic power control with minimal complexity in a dual connectivity mode. In particular, a user equipment (UE) may determine the reserved power (or maximum available power) for uplink transmissions on one or more cells in one cell group to a base station based on the total power available to the UE and the minimum reserved power for uplink transmissions on one or more cells in another cell group. Once the UE determines the reserved power for conflicting uplink transmissions on one or more cells in a cell group, the UE may allocate the reserved power to each uplink transmission on the one or more cells in the cell group (e.g., based on a priority of each of the uplink transmissions).

Description

[0001] cross reference [0002] This patent application claims priority to U.S. Patent Application No. 16 / 799,654, filed February 24, 2020, by HOSSEINI et al., entitled "UPLINK POWER CONTROL PRIORITIZATION IN DUAL CONNECT"; and by HOSSEINI et al. U.S. Provisional Patent Application No. 62 / 810,368, filed February 25, 2019, entitled "UPLINK POWERCONTROL PRIORITIZATION IN DUAL CONNECTIVITY," each of which is assigned to the assignee of the present application. technical field [0003] The following relates generally to wireless communications, and more specifically to uplink power control prioritization in dual connectivity. Background technique [0004] Wireless communication systems are widely deployed to provide various types of communication content such as voice, video, packet data, messaging, broadcast, and so on. These systems may be capable of supporting communication with multiple users by sharing available system resources (eg, time, frequency, and power). Examples ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W52/14H04W52/36H04W52/28H04W52/34
CPCH04W52/146H04W52/367H04W52/281H04W52/34H04W72/0473H04W72/1268H04W72/56H04W76/15H04W84/20
Inventor S·侯赛尼P·加尔X·F·王
Owner QUALCOMM INC