Buffer Size Report Octet Presence Indicator Wireless Latency
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Solution Overview
Problem
In wireless communication systems, existing methods for transmitting buffer size reports (BSR) are inefficient due to limited radio resources and high latency, particularly in systems with increased user equipment (UE) and data transmission demands, which can lead to performance degradation.
Innovation Solution
A method for transmitting a buffer size report (BSR) that includes octet presence indications, where each octet indicates the presence or absence of corresponding buffer size information, with the number of octet presence indications varying based on the highest value of logical channel group (LCG) identities, allowing for efficient data transmission and reduced latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional BSR transmission methods are used, then the transmission process is simple, but the efficiency is low and latency is high due to limited radio resources
Solution Approach 1:
The patent segments the buffer size report into multiple octets, where each octet corresponds to a specific logical channel group (LCG). This segmentation allows the BS to transmit buffer size information for different LCGs in a structured manner, enabling efficient use of radio resources by only transmitting octets that contain relevant information, thereby reducing latency and improving transmission efficiency.
Solution Approach 2:
The patent introduces dynamic octet presence indicators that allow the BSR structure to adapt its size and content based on the actual buffer status of different LCGs. When an LCG has no data to report, its corresponding octet can be omitted or marked, dynamically adjusting the transmission size to match actual needs, thus optimizing radio resource utilization and reducing unnecessary transmission time.
2Adaptability or versatility
If more LCGs are supported, then the system can handle more data channels, but the BSR structure becomes more complex requiring more octets
Solution Approach 1:
The patent applies partial action by including only the necessary number of octets in the BSR based on the highest LCG identity configured. Instead of always transmitting a fixed maximum size BSR, the structure dynamically includes only the required number of octets (e.g., 8 octets for LCGs 0-7, 16 octets for LCGs 0-15), reducing complexity when fewer LCGs are active while maintaining full capability when needed.
Solution Approach 2:
The patent changes the parameter of BSR size based on the highest LCG identity present in the configuration. The number of octets in the BSR is determined by the ceiling of (highest LCG identity / 8) + 1, allowing the structure to scale efficiently with the number of active LCGs. This parameter adaptation maintains versatility for supporting up to 64 LCGs while keeping the actual transmission size proportional to actual needs.
Data Source
AI summary
A method for transmitting a buffer size report (BSR) by a wireless node in a wireless communication system is disclosed. The method comprises receiving logical channel group (LCG) configuration information including identities of LCGs from the network; generating the BSR including octet presence indications; and transmitting the BSR to a network, wherein each of the octet presence indications indicates whether a corresponding octet is present or not in the BSR, wherein a number of the octet presence indications is variable according to a highest value of the identities of LCGs.