Beam Selection via SINR to Mitigate Inter-Cell Interference
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Solution Overview
Problem
Existing wireless communication systems face interference issues due to the lack of consideration for neighboring cell interference during the receiving beam selection process, leading to decreased communication performance and resource wastage.
Innovation Solution
The implementation of electronic equipment with processing circuitry that performs a beam measurement process to determine channel quality under various interference scenarios, allowing user equipment to select a receiving beam that maximizes the signal-to-interference-plus-noise ratio, thereby reducing interference between cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If user equipment selects receiving beam based on RSRP without considering interference, then beam selection is simple, but communication performance decreases due to inter-cell interference
Solution Approach 1:
The patent changes the selection criterion from RSRP (reference signal receiving power) to SINR (signal to interference plus noise ratio). This parameter change allows the system to consider both signal strength and interference levels, thereby improving communication performance while maintaining a relatively simple selection process. The SINR metric inherently balances signal quality and interference conditions without requiring complex multi-step procedures.
2Object-affected harmful factors
If network side equipment uses silence method to eliminate inter-cell interference, then interference is reduced, but resource utilization decreases
Solution Approach 1:
The patent implements a feedback mechanism where user equipment measures interference levels on physical uplink control channels and reports this information to the network side equipment. Based on this feedback, the network side equipment dynamically adjusts transmitting beam selection and resource allocation to avoid or mitigate interference. This feedback-driven approach eliminates the need for blanket silence periods, allowing continuous resource utilization while maintaining interference management through informed decision-making.
3Measurement precision
If user equipment considers interference scenarios in beam measurement, then receiving beam selection accuracy improves, but measurement complexity increases
Solution Approach 1:
The patent applies partial action by focusing measurements only on the physical uplink control channel resources that are most susceptible to inter-cell interference, rather than requiring comprehensive measurements across all channels and beams. The user equipment measures interference levels on specific control channel resources and uses this partial measurement information to make informed beam selection decisions. This approach achieves sufficient accuracy for practical purposes while significantly reducing measurement complexity compared to exhaustive measurement schemes.
Data Source
AI summary
An electronic device includes a processing circuit configured to execute a beam measurement process, so as to determine, under each pre-set interference scene, the channel quality between each receiving beam of the electronic device and each transmitting beam of a network side device serving the electronic device, and determine a receiving beam according to the channel quality under each pre-set interference scene, the transmitting beam of the network side device and a pre-set interference scene in which the electronic device is located, such that a signal-to-interference-and-noise ratio obtained when the electronic device uses the determined receiving beam to receive a signal is the maximum, the pre-set interference scene representing an interference situation of the network side device around the electronic device to the electronic device.