Base Station Uplink Beam Determination via Multi-Configuration Reception

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Solution Overview

Problem

In new generation mobile communication systems, the higher frequency bands used result in greater propagation loss and smaller coverage radii, necessitating the use of beamforming to increase coverage, but this requires multiple random access signals from terminals, leading to increased power consumption and resource usage.

Innovation Solution

A method and device for determining an uplink receiving beam at a base station by receiving random access signals using multiple configurations, allowing the selection of an optimal receiving configuration based on state information, thereby reducing the need for multiple random access signals from terminals.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Area of stationary object

If beamforming technology is used to increase coverage radius, then coverage is improved, but terminals need to send multiple random access signals which increases power consumption and resource usage

Engineering Contradiction:

Improvecoverage radiusVSAvoidpower consumption of terminal

Core Design Contradiction:

Area of stationary objectVSUse of energy by moving object

Solution Approach 1:

Instead of having the terminal send multiple random access signals to find the best beam (active scanning), the base station receives signals on multiple receiving configurations simultaneously (passive multiple receive). This inverts the traditional approach where the mobile device actively probes different beams, and instead the base station passively receives on multiple configurations, thereby reducing terminal power consumption while maintaining coverage.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The base station is configured with multiple receiving configurations that can simultaneously receive random access signals from multiple terminals. This multi-functionality allows the base station to serve multiple purposes: determining uplink receiving beams, enabling coverage enhancement, and supporting multiple random access attempts without requiring each terminal to independently send multiple signals.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Area of stationary object

If beamforming technology is used to increase coverage radius, then coverage is improved, but the number of random access signals required increases leading to increased resource usage

Engineering Contradiction:

Improvecoverage radiusVSAvoidnumber of random access signals

Core Design Contradiction:

Area of stationary objectVSQuantity of substance

Solution Approach 1:

The traditional approach requires multiple random access signals from terminals to establish reliable connectivity in beamforming systems. This patent inverts the approach by having the base station receive on multiple configurations simultaneously, thereby reducing the number of signals that need to be transmitted while achieving the same reliability and coverage goals.

Inventive Principle:

Principle #13The other way round (Inversion)

Solution Approach 2:

The base station merges multiple receiving configurations into a single reception operation, where multiple random access signals can be received simultaneously on different configurations. This combining of receiving capabilities reduces the total number of separate signal transmissions needed, thereby reducing resource usage while maintaining coverage.

Inventive Principle:

Principle #5Merging (Combining)

3Measurement precision

If the base station uses multiple receiving configurations to determine uplink receiving beam, then receiving accuracy is improved, but device complexity increases

Engineering Contradiction:

Improvereceiving accuracyVSAvoidbase station configuration complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The base station pre-configures multiple receiving configurations before random access occurs. This preliminary setup allows the base station to have ready-made beam configurations that can be quickly activated during random access without requiring complex real-time beamforming calculations, thereby reducing operational complexity while maintaining high receiving accuracy.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent changes the parameters of the receiving configurations (such as beam directions, frequencies, or time slots) to create a set of diverse receiving options. By varying these parameters in advance, the base station can achieve high receiving accuracy across different scenarios without requiring complex adaptive algorithms during operation.

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS12114370B2Determination method, access, transmission, processing method and device, base station and terminal

Publication Date: 2024.10.08 ZTE CORP

AI summary

Disclosed is a determination, access, sending and processing method and device, base station and terminal. The method for determining au uplink receiving beam and applied to a base station includes: receiving, by using N receiving configurations, a random access signal sent by a terminal, where N is an integer equal to or greater than 2; obtaining respective receiving state information corresponding to the N receiving configurations; and determining a receiving configuration of the uplink receiving beam according to the receiving state information.