Variable Subcarrier Interval Communication via Fixed Control Signaling
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Solution Overview
Problem
User equipment cannot communicate normally with a base station when the subcarrier interval is configured flexibly, as it requires a fixed subcarrier interval for communication, limiting the ability to switch to variable subcarrier interval services.
Innovation Solution
A communication method that uses a first time-frequency area with a fixed subcarrier interval to assist in switching to a second time-frequency area with a variable subcarrier interval, enabling communication by transmitting control signaling that includes time-frequency location information for the second area, allowing the user equipment to adapt and communicate effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed subcarrier interval is used for communication, then normal communication between user equipment and base station is ensured, but flexible service configuration and variable subcarrier interval services cannot be supported
Solution Approach 1:
The patent segments the time-frequency resources into two distinct areas: a first time-frequency area with fixed subcarrier interval for reliable control signaling, and a second time-frequency area with variable subcarrier interval for flexible service data transmission. This segmentation allows each area to serve its specific function optimally without interference
Solution Approach 2:
The first time-frequency area with fixed subcarrier interval acts as an intermediary that assists the user equipment to access and communicate in the second time-frequency area with variable subcarrier interval. The control signaling in the first area provides guidance for utilizing resources in the second area
2Adaptability or versatility
If a variable subcarrier interval is configured flexibly for different services, then service configuration flexibility is improved, but normal communication between user equipment and base station fails
Solution Approach 1:
The first time-frequency area with fixed subcarrier interval serves as a reliable intermediary that enables the user equipment to access the variable subcarrier interval services. The control signaling transmitted in this fixed area provides necessary guidance for the equipment to communicate in the variable subcarrier area
Solution Approach 2:
The system performs preliminary action by first establishing control signaling communication in the fixed subcarrier interval area before enabling variable subcarrier interval services. This preliminary establishment of reliable control channel prepares the ground for subsequent flexible service transmission
Data Source
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AI summary
The present invention relates to a communication method and apparatus, a computer program and a recording medium, which pertain to the technical field of communications. The method includes: receiving first control signaling transmitted by using a first time-frequency area which is at least one time-frequency area with a fixed subcarrier interval, the first control signaling carrying time-frequency location information about a second time-frequency area which is a time-frequency area with a variable subcarrier interval; and communicating with a base station by using the second time-frequency area, according to the time-frequency location information about the second time-frequency area indicated by the first control signaling. According to the present invention, with the assistance of a first time-frequency area with a fixed subcarrier interval, a user equipment can communicate with a base station by using a second time-frequency area with a variable subcarrier interval, thereby enabling switching of the user equipment to a variable subcarrier interval service with the assistance of a fixed subcarrier interval service and solving the problem that the user equipment cannot communicate with the base station normally when a subcarrier interval is configured flexibly.