Wireless Beam Timing Advance Configuration via Integrated Signaling
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Solution Overview
Problem
Current mobile communication systems face challenges in supporting high-speed data services due to resource shortages and increased user demands for higher transfer rates, a larger number of connections, very low end-to-end latency, and high energy efficiency, which existing techniques such as small cell enhancement and massive MIMO do not adequately address.
Innovation Solution
A method for configuring multiple timing advance processes using a plurality of beam pairs, allowing User Equipment (UE) to apply the best timing advance value for each beam pair without requiring a separate signaling procedure, thereby efficiently managing resource allocation and reducing overhead through hierarchical TA configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a separate signaling procedure is used for TA configuration, then TA configuration can be performed accurately, but signaling overhead increases and resource efficiency decreases
Solution Approach 1:
The patent merges the TA configuration process with the beam management signaling procedure. Specifically, the TA value is configured together with the beam pair indication through integrated signaling, eliminating the need for separate TA configuration messages. This reduces signaling overhead while maintaining configuration accuracy, as both parameters are transmitted and processed in a unified manner within the same signaling framework.
Solution Approach 2:
The patent makes the beam management signaling procedure serve multiple functions: it simultaneously indicates beam pair information and conveys TA configuration. By designing the signaling message to carry both beam identification and timing advance parameters, the system achieves multi-functionality, reducing the need for dedicated TA signaling while ensuring accurate configuration for each beam pair.
2Measurement precision
If multiple TA processes are configured for multiple beam pairs, then timing accuracy for each beam is improved, but system complexity increases
Solution Approach 1:
The patent segments the TA configuration into beam-specific processes, where each beam pair has its own dedicated TA value and process identifier. This segmentation allows independent optimization of timing for each beam without affecting others, improving timing accuracy per beam while managing complexity through structured organization of multiple TA processes using identification fields and associated signaling.
Solution Approach 2:
The patent introduces a new dimension of beam identification into the TA configuration framework. By associating TA values with beam pair identifiers and using spatial dimension information from beam management signaling, the system manages multiple TA processes through an additional organizational layer, making the complex multi-process configuration more tractable and efficient.
3Loss of information
If hierarchical TA configuration is implemented, then overhead is reduced and resource efficiency improves, but configuration flexibility may be limited
Solution Approach 1:
The patent implements preliminary configuration of TA values through higher-layer signaling (RRC or MAC CE) before actual beam-specific transmission. This preliminary action establishes a pool of TA values that can be efficiently referenced during dynamic beam switching, reducing real-time signaling overhead while maintaining flexibility through pre-established configuration options that can be quickly activated based on beam selection.
Data Source
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AI summary
The present specification provides a method for transmitting and receiving a signal by means of a beam in a wireless communication system. The method for a terminal for transmitting and receiving a signal by means of one or more beams according to the present specification may comprise the steps of: receiving sounding reference signal (SRS) resource configuration information for an SRS transmission from a base station, the SRS resource configuration information comprising configuration information indicating one or more previously configured timing advance values for one or more SRS resources; receiving, from the base station, control information indicating a particular SRS resource from among the one or more SRS resources; and transmitting an uplink signal at the configured temporal uplink transmission point using the timing advance value corresponding to the particular SRS resource.