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Congestion control for NR V2X

A user equipment and window technology, applied in specific environment-based services, machine-to-machine/machine-type communication services, connection management, etc., can solve performance degradation and other problems, reduce delay, improve reliability and throughput Effect

Pending Publication Date: 2022-05-10
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This interference can degrade performance on both the downlink and uplink

Method used

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  • Congestion control for NR V2X
  • Congestion control for NR V2X
  • Congestion control for NR V2X

Examples

Experimental program
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Embodiment Construction

[0024] The following outlines some aspects of the disclosure to provide a basic understanding of the techniques discussed. This summary is not an exhaustive overview of all anticipated features of the disclosure, and is intended to neither identify key or critical elements of all aspects of the disclosure nor delineate the scope of any or all aspects of the disclosure. Its sole purpose is to present some concepts of one or more aspects of the disclosure in a generalized form as a prelude to the more detailed description that is presented later.

[0025] The detailed description relates to congestion control enhancements for device-to-device (D2D) communication. Traditionally, congestion control for D2D communication is based on both usage history and estimated usage for future transmissions. However, estimating future usage may not be reliable in all scenarios. For example, a device may not be able to accurately estimate its future use or the use of other devices and / or medi...

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Abstract

In one aspect, a method includes determining, by a user equipment (UE), a channel busy rate (CBR) window for a CBR measurement for one or more resources; determining, by the UE, CBR measurements for the CBR window and for the one or more resources; determining, by the UE, a channel occupancy (CR) window based on a first number of subframes used for a history of past transmissions, and based on a second number of subframes used for future planned transmissions and corresponding retransmissions; and determining, by the UE, a CR value for the CR window based on the sub-channels used for the one or more resources for the first number of subframes, and based on the sub-channels estimated for the one or more resources for the second number of subframes. In another aspect, a method includes determining a CR window based on CBR measurements.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Patent Application No. 17 / 061,543, filed October 1, 2020, entitled "CONGESTION CONTROL FOR NR V2X," and filed October 4, 2019, entitled US Provisional Patent Application No. 62 / 911,106 for "CONGESTION CONTROL FOR NR V2X," both of which are expressly incorporated herein by reference in their entirety. technical field [0003] In general, aspects of the present disclosure relate to wireless communication systems, and more specifically, aspects of the present disclosure relate to managing device-to-device communications, such as congestion for vehicle-to-everything (V2X) in new radio (NR) control. Background technique [0004] Wireless communication networks are widely deployed to provide various communication services such as voice, video, packet data, messaging, broadcast, and so on. These wireless networks may be multiple-access networks capable of supporting multiple users...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/02H04W24/08H04W4/40
CPCH04W28/0289H04W24/08H04W4/40H04L67/12H04W4/46H04W28/0236H04W76/14H04W4/70
Inventor S·K·巴盖尔K·古拉蒂T·V·阮G·萨奇斯吴栓栓
Owner QUALCOMM INC