Base Station Hotspot Cell Data Transmission Method
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Solution Overview
Problem
Current WiFi-based data transmission methods interrupt user experience when user equipment (UE) leaves the hotspot area, as the base station does not accurately identify data transmitted through hotspot cells as belonging to the UE.
Innovation Solution
A data transmission method where the base station receives a transmission request message from the UE that includes identifiers for the bearer and hotspot cell, allowing it to acknowledge and receive data from the UE using these identifiers, ensuring continuous service even when the UE leaves the hotspot area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If data is transmitted through a hotspot cell by another UE, then transmission rate and coverage are improved, but the base station cannot accurately identify the data source causing service interruption when UE leaves the hotspot area
Solution Approach 1:
The patent introduces an intermediary identifier mechanism where the base station uses a combination of UE identity and hotspot cell identifier as a mediator to track data sources. When data is transmitted through a hotspot cell, the base station records the mapping between the actual UE and the hotspot cell, allowing accurate identification even when the UE moves out of the hotspot coverage area.
Solution Approach 2:
The patent segments the data transmission identification into two parts: the UE identity and the hotspot cell identifier. This segmentation allows the base station to separately track the actual data source (UE) and the transmission path (hotspot cell), resolving the ambiguity of data source identification while maintaining high transmission rates through the hotspot infrastructure.
2Adaptability or versatility
If WiFi hotspot sharing is enabled among multiple UEs, then network accessibility and coverage are improved, but data transmission is interrupted when UEs leave the hotspot area
Solution Approach 1:
The patent applies preliminary action by having the base station pre-establish the mapping relationship between UE identity and hotspot cell identifier before data transmission occurs. This advance preparation ensures that when UEs move out of the hotspot area, the base station already has the necessary information to maintain service continuity without interruption.
Solution Approach 2:
The patent implements a feedback mechanism where the base station continuously monitors the location and transmission status of UEs. When a UE leaves the hotspot area, the base station receives feedback about the location change and uses the pre-established mapping to redirect data transmission, ensuring service reliability while maintaining network accessibility.
3Productivity
If data from multiple UEs is transmitted through a single hotspot cell, then resource utilization is improved, but the base station loses track of which data belongs to which UE
Solution Approach 1:
The patent uses a nested doll approach by embedding the UE identity within the data transmission context of the hotspot cell. The data transmission is structured with nested identifiers: the outer layer identifies the hotspot cell (for resource routing) and the inner layer identifies the specific UE (for data ownership). This nested structure allows efficient resource utilization through the hotspot while preserving complete data ownership information.
Data Source
Figure 1~2A
Figure 2B~2C
Figure 2D~3
AI summary
The present invention discloses a data transmission method, a base station, a user equipment, and a communications apparatus. The method includes: receiving, by a base station, a first transmission request message that is sent by a UE and requests to send data to the base station by using a first bearer of a first hotspot cell, where the first transmission request message carries an identifier of the first bearer and an identifier of the first hotspot cell; sending, by the base station, a first transmission response message in response to the first transmission request message to the UE; and receiving, by the base station, the data that is sent, after the UE receives the first transmission response message, by the UE by using the first bearer of the first hotspot cell. According to the data transmission method, the base station, the user equipment, and the communications apparatus in embodiments of the present invention, the base station can learn that data transmitted from a hotspot cell belongs to the UE, which can ensure that a subsequent related service is not interrupted when the UE leaves the hotspot cell, thereby improving user experience.