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Channel state information triggering for uplink dominated traffic

A technology for channel state information and state information, which is applied in the directions of transmission path sub-channel allocation, signaling allocation, wireless communication, etc., and can solve problems such as low efficiency

Pending Publication Date: 2022-06-21
QUALCOMM INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Current techniques for reporting CSI from UE to base station may be inefficient for certain types of traffic (e.g. for uplink dominant traffic)

Method used

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  • Channel state information triggering for uplink dominated traffic
  • Channel state information triggering for uplink dominated traffic
  • Channel state information triggering for uplink dominated traffic

Examples

Experimental program
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Embodiment Construction

[0035] In some wireless communication systems, user equipment (UE) may be configured to perform channel measurements on downlink signals received from a base station and report the channel measurements to the base station. In such a system, the UE may send the results of channel measurements in channel state information (CSI) feedback to the base station. Using CSI feedback, the base station can identify suitable parameters for downlink transmissions to the UE to increase the likelihood that the downlink transmission will be received by the UE. In some cases, the communication between the UE and the base station may be uplink-dominated, and conventional techniques for facilitating CSI reporting may be deficient. In one example, if the UE is configured to periodically report CSI to the base station, the CSI reported by the UE may not be used by the base station (eg, resulting in wasted resources) when there is no downlink traffic. In another example, if the base station is con...

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PUM

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Abstract

Methods, systems, and devices for wireless communication are described. In general, the described techniques provide for reporting channel state information (CSI) efficiently with limited overhead. In one aspect, if a user equipment (UE) is configured to periodically transmit data and CSI to a base station, the UE may transmit CSI when the UE has data to transmit to the base station. In particular, if the UE has data to be transmitted in a transmission occasion, the UE may transmit data and CSI reports during the transmission occasion. Otherwise, the UE may suppress transmission of CSI reports. In another aspect, a UE may be configured to transmit CSI to a base station when downlink channel conditions change. In particular, when channel conditions change, the UE may request to report CSI to the base station, and the base station may trigger the UE to report CSI upon receiving the request.

Description

technical field [0001] The following relates generally to wireless communications, and more particularly to channel state information (CSI) triggering for uplink dominant traffic. Background technique [0002] Wireless communication systems are widely deployed to provide various types of communication content, such as voice, video, packet data, messaging, broadcast, and the like. These systems are capable of supporting communication with multiple users by sharing available system resources (eg, time, frequency, and power). Examples of such multiple-access systems include Fourth Generation (4G) systems such as Long Term Evolution (LTE) systems, LTE-Advanced (LTE-A) systems, or LTE-APro systems, and Fourth Generation (4G) systems that may be referred to as New Radio (NR) systems Fifth-generation (5G) systems. These systems may employ techniques such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Ortho...

Claims

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Application Information

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IPC IPC(8): H04W24/08
CPCH04L5/0057H04L5/0044H04L5/0078H04L5/0058H04L5/0055H04L5/0053H04L5/0094H04W74/0816H04W72/23H04W72/54
Inventor 魏超雷静郝辰曦P.P.L.翁徐慧琳陈万士K.K.穆克维利刘乐H.D.李
Owner QUALCOMM INC