Buffer Size Information Transmission in Wireless Systems
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Solution Overview
Problem
In wireless communication systems, there is a challenge in efficiently transmitting buffer size information due to limited radio resources, which affects data and control information transmission, particularly in terms of latency and delay.
Innovation Solution
A method for transmitting buffer size information in a wireless communication system involves configuring logical channel groups and using uplink grants to efficiently transmit this information, allowing for the inclusion of buffer size data from multiple logical channel groups when specific conditions are met, such as availability of the uplink grant.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If buffer size information from multiple logical channel groups is transmitted together, then transmission efficiency is improved, but the complexity of managing and selecting which channels to include increases
Solution Approach 1:
The patent segments logical channels into different groups (first logical channel group and second logical channel group) with different characteristics. The buffer size information transmission method selectively includes buffer size information from different groups based on specific conditions, allowing efficient transmission while managing complexity through structured organization of channels.
Solution Approach 2:
The patent applies different transmission strategies to different logical channel groups based on their specific characteristics. The first logical channel group may have different buffer size information transmission conditions compared to the second logical channel group, allowing optimization for each group's specific requirements while maintaining overall system efficiency.
2Productivity
If radio resources are allocated for transmitting buffer size information, then data transmission capability is improved, but available resources for data transmission are reduced
Solution Approach 1:
The patent transmits buffer size information selectively rather than comprehensively. By determining whether to include buffer size information from the second logical channel group based on specific conditions (such as whether the uplink grant allows it), the system transmits only the necessary information, optimizing the balance between data transmission capability and available radio resources.
Solution Approach 2:
The patent changes the transmission parameters and conditions for buffer size information based on the uplink grant characteristics. When the first uplink grant is not allowed to be used for transmission of buffer size information of the second logical channel group, the method adjusts what information is transmitted, thereby optimizing resource utilization.
3Loss of time
If buffer size information is transmitted immediately when available, then latency is reduced, but radio resources are wasted when no data needs transmission
Solution Approach 1:
The patent uses feedback from the uplink grant determination to decide whether to transmit buffer size information. By checking whether the first uplink grant is allowed to be used for transmission of buffer size information of the second logical channel group, the system avoids transmitting unnecessary information, thereby preventing waste of radio resources and energy while maintaining low latency when transmission is needed.
Solution Approach 2:
The patent dynamically adjusts the buffer size information transmission strategy based on real-time conditions. The determination of whether to include buffer size information from the second logical channel group is made dynamically based on the uplink grant characteristics, allowing the system to adapt to changing network conditions and avoid wasting resources on unnecessary transmissions.
Data Source
AI summary
The present disclosure relates to a method for transmitting signals by a transmission end in a wireless communication system. In particular, the method includes configuring first and second type logical channel groups; receiving a first uplink grant; and transmitting buffer size information based on the uplink grant, wherein, when the first uplink grant is allowed to be used for transmission of buffer size information of the second logical channel group, the buffer size information includes the buffer size information of the first and second logical channel groups, and wherein, when the first uplink grant is not allowed to be used for transmission of buffer size information of the second logical channel group, the buffer size information includes the buffer size information of the first logical channel group.