DCI-Based Beam Selection for Valid Time Resources in Wireless Links
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately and efficiently transmitting and receiving signals, particularly in environments requiring enhanced mobile broadband communication, massive Machine Type Communication, and Ultra-Reliable and Low Latency Communication, where beam management and resource allocation are critical.
Innovation Solution
A method involving a control link with a base station and an access link with user equipment, utilizing downlink control information (DCI) to configure beams by identifying valid time resource fields and beam indication fields, and selectively operating on these resources to enhance signal transmission and reception efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If beam indication fields and time resource fields are configured for each time resource in DCI, then beam management accuracy is improved, but device complexity and signaling overhead increase
Solution Approach 1:
The patent segments the beam indication and time resource field configurations by introducing a validity field that divides time resources into valid and invalid segments. This allows the device to process only relevant beam configurations for valid time resources, reducing complexity while maintaining accuracy for active resources.
Solution Approach 2:
Instead of processing all beam indication fields for all time resources, the patent applies partial action by using the validity field to identify and process only the necessary subset of beam configurations corresponding to valid time resources, thereby reducing device complexity and signaling overhead.
2Reliability
If multiple beam indication fields are provided for different time resources, then signal transmission reliability is improved, but DCI message size and processing complexity increase
Solution Approach 1:
The patent extracts the essential information needed for beam management by introducing a validity field that indicates which beam indication fields are actually applicable. This allows the system to maintain multiple beam configurations for reliability while avoiding transmission of redundant information for invalid time resources, thus reducing DCI message size.
Solution Approach 2:
The validity field provides preliminary filtering information that allows the receiving device to pre-identify which beam indication fields are valid before processing the complete DCI message. This preliminary action reduces the amount of data that needs to be fully processed and transmitted, optimizing the balance between reliability and message size.
3Manufacturing precision
If the device processes all time resource fields in DCI, then beam configuration completeness is improved, but processing time and energy consumption increase
Solution Approach 1:
The patent introduces dynamic processing behavior where the device adapts its processing scope based on the validity field indications. Instead of statically processing all time resource fields, the device dynamically adjusts to process only the valid subset, maintaining configuration completeness for active resources while reducing processing time and energy consumption.
Solution Approach 2:
The validity field enables local quality differentiation across time resources, allowing the device to apply different processing intensities to different time resource segments. Valid time resources receive complete beam configuration processing, while invalid resources are skipped, optimizing the balance between completeness and processing efficiency.
Data Source
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AI summary
A device in which a control link with a base station, and an access link with a terminal are established in a wireless communication system, according to various embodiments, can receive, through the control link, a downlink control indicator (DCI) including a plurality of time resource fields, a plurality of beam indication fields and a validity field for configuring a beam of the access link, specify a valid first time resource field from among the plurality of time resource fields on the basis of the validity field, and determine a beam for the access link on the basis of a first beam indication field corresponding to the first time resource fields from among the plurality of beam indication fields.