Scheduling Request Transmission via Parameter Segmentation
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Solution Overview
Problem
User Equipment (UE) can only transmit one type of Scheduling Request (SR) at a time, leading to delays in sending both uplink buffer data and Beam Failure Recovery Requests, as they share the same SR resource.
Innovation Solution
A method and apparatus for generating and transmitting SR sequences based on preset parameters, allowing simultaneous transmission of uplink SR and Beam Failure Recovery Requests (BFRQ) without additional SR resources, by determining cyclic shifts and information blocks corresponding to specific PUCCH formats and transmission manners.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UE uses a single SR resource to transmit SR, then the SR resource occupation is low, but the SR transmission types are limited and cannot transmit multiple SR types simultaneously
Solution Approach 1:
The patent segments the SR transmission by dividing it into different SR types (first SR and second SR) with different priorities. Each SR type is assigned different parameter configurations (cyclic shifts, information blocks) that allow them to be transmitted simultaneously on the same physical resource, effectively segmenting the transmission functionality while sharing the resource infrastructure.
Solution Approach 2:
The patent changes parameters (cyclic shifts, information blocks) of the SR sequence based on the SR type and transmission manner. By dynamically adjusting these parameters, the system can differentiate between multiple SR types transmitted on the same resource, enabling versatile SR transmission without increasing resource quantity.
2Adaptability or versatility
If UE transmits multiple SR types simultaneously, then the SR transmission versatility is improved, but the device complexity increases
Solution Approach 1:
The patent creates a universal SR transmission mechanism where a single PUCCH resource can handle multiple SR types (ulink buffer data SR, beam failure recovery SR, random access response SR) through parameter differentiation. This multi-functional approach allows one resource to perform multiple functions without requiring separate dedicated resources for each SR type, thus avoiding increased device complexity.
Solution Approach 2:
The patent introduces dynamic parameter selection where the cyclic shift and information block values are determined based on the current SR type and transmission manner. This dynamic adaptation allows the system to flexibly handle different SR scenarios without requiring complex static configurations for each possible SR type, managing complexity through adaptive parameter selection.
3Speed
If UE can only transmit one SR at a time, then the SR transmission simplicity is maintained, but the SR transmission speed and timeliness deteriorate
Solution Approach 1:
The patent performs preliminary configuration of parameter mappings between SR types and their corresponding parameter values (cyclic shifts, information blocks). This preliminary setup allows the UE to quickly determine the appropriate parameters for transmission without complex real-time calculations, enabling fast simultaneous transmission of multiple SR types and reducing transmission delays.
4Reliability
If multiple SR types are transmitted simultaneously, then the SR transmission timeliness is improved, but the measurement and detection difficulty increases
Solution Approach 1:
The patent uses different cyclic shifts and information blocks as distinctive markers (analogous to color changes) for different SR types. These parameter variations create distinguishable signal characteristics that allow the base station to easily identify and differentiate between multiple simultaneously transmitted SR types, making detection and measurement straightforward despite simultaneous transmission.
Data Source
AI summary
Provided are a method and apparatus for transmitting a Scheduling Request (SR). The method includes: before sending an SR to a base station through a Physical Uplink Control Channel (PUCCH), determining a preset parameter for generating an SR sequence based on the SR and a PUCCH format for sending the SR, the preset parameter corresponding to a transmission manner of the SR and the PUCCH format, the transmission manner of the SR including that a first SR is transmitted, a second SR is transmitted and both the first SR and the second SR are transmitted simultaneously, and the first SR and the second SR being different types of SRs; generating the SR sequence based on the preset parameter; and sending the SR sequence to the base station. Accordingly, the terminal can transmit two types of SRs simultaneously without additionally increasing the SR resource.