Logical Channel Carrier Mapping in Wireless Terminals
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Solution Overview
Problem
In carrier aggregation scenarios, existing technologies lack an efficient method to release the corresponding relationship between logical channels and carriers, leading to limited data transmission efficiency due to restricted mapping of logical channels to specific carriers.
Innovation Solution
The method involves a terminal device receiving indication information to stop duplication transmission of radio bearers and map logical channels to all configured carriers, thereby releasing the pre-configured mapping relationships between logical channels and carriers, allowing data transmission across multiple carriers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the corresponding relationship between logical channel and carrier is pre-configured, then the configuration is simple and easy to manage, but the data transmission efficiency is reduced due to limited mapping flexibility
Solution Approach 1:
The patent introduces dynamic mapping mechanisms that allow logical channels to be flexibly mapped to different carriers based on real-time transmission needs. The network device can dynamically adjust the mapping relationships through indication information, enabling the system to transition from static pre-configured mapping to dynamic adaptive mapping, thereby improving data transmission efficiency while maintaining configuration simplicity through standardized procedures.
2Loss of information
If the logical channel is mapped to specific carriers only, then the mapping relationship is clear and unambiguous, but the adaptability of data transmission is reduced
Solution Approach 1:
The patent segments the mapping relationship management into two parts: a pre-configured base mapping relationship that provides clarity and stability, and a dynamic indication mechanism that provides adaptability. The indication information can be segmented into different types (e.g., carrier-specific indications, group indications) that selectively modify the base mapping without creating ambiguity, thus maintaining clarity while enhancing adaptability.
Solution Approach 2:
The patent establishes pre-configured mapping relationships as a foundation before dynamic adjustments are needed. This preliminary configuration provides a clear baseline mapping relationship, and subsequent dynamic indications build upon this foundation rather than creating confusion. The pre-configuration acts as a default state that is only modified when specific dynamic conditions arise, maintaining overall clarity while enabling adaptability.
3Loss of energy
If duplication transmission is stopped, then the resource consumption is reduced, but the reliability of data transmission may be affected
Solution Approach 1:
The patent implements partial duplication transmission by allowing selective stopping of duplication for specific logical channels or carriers based on transmission conditions. Instead of completely disabling duplication across all channels, the system applies duplication only where and when needed, reducing overall resource consumption while maintaining reliability for critical data transmissions. This partial action approach optimizes the balance between resource efficiency and transmission reliability.
Data Source
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AI summary
Provided are a wireless communication method, a terminal device and a network device. The wireless communication method comprises: a terminal device receiving first instruction information sent by a network device, wherein the first instruction information is used for instructing the terminal device to stop copying and transmitting data of one or more wireless bearers; the terminal device mapping a first logic channel to all carriers of a plurality of carriers according to the first instruction information, wherein the plurality of carriers are all carriers of carriers configured by the network device for the terminal device. In the embodiments of the present invention, by means of the first instruction information, the terminal device can map a logic channel to all carriers, thereby preventing the logic channel from being limited to a specified carrier, and thus the efficiency of data transmission is improved.