HARQ Feedback Bit Determination for Multiplexed PUCCH Services
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Solution Overview
Problem
Existing protocols for determining the number of bits of hybrid automatic repeat request (HARQ) feedback information on a physical uplink control channel (PUCCH) are inadequate for scenarios where both unicast and multicast/broadcast services coexist and are multiplexed on the same resource, as introduced in the 5G standard release 17.
Innovation Solution
A method to determine the number of bits of HARQ feedback information by obtaining service information of both services multiplexed on the PUCCH, using configuration information to record channel transmission parameters, and calculating the number of bits based on the service information of each service type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only unicast service is considered for determining HARQ feedback information bits, then the protocol is simple, but it cannot support multicast/broadcast service multiplexing scenarios
Solution Approach 1:
The patent segments the service types into unicast service and multicast/broadcast service, and separately determines the number of HARQ feedback information bits for each service type. This segmentation allows the protocol to handle different service types independently while maintaining overall simplicity.
Solution Approach 2:
The patent creates a universal determination method that can handle both unicast service and multicast/broadcast service through a unified protocol framework. The method uses service identification fields to universally accommodate different service types without requiring separate protocols.
2Productivity
If multiple service types are multiplexed on the same PUCCH, then service efficiency is improved, but the existing protocol cannot determine the number of HARQ feedback information bits accurately
Solution Approach 1:
The patent performs preliminary determination of the number of HARQ feedback information bits for each service type before multiplexing. By calculating the bit requirements in advance for both unicast and multicast/broadcast services, the protocol ensures accurate bit number determination while enabling efficient multiplexed transmission.
Solution Approach 2:
The patent introduces service identification information as an intermediary element that enables the protocol to distinguish between different service types multiplexed on the same PUCCH. This intermediary mechanism allows accurate determination of HARQ feedback bit numbers by identifying which service type each bit corresponds to.
Data Source
AI summary
Provided is a method for determining a number of bits, an electrical device, and a storage medium. The method includes the following. Obtain service information of a first service and service information of a second service, where the first service and the second service are carried in the same physical uplink control channel (PUCCH). Obtain the number of bits of hybrid automatic repeat request (HARQ) feedback information of the PUCCH according to configuration information, the service information of the first service, and the service information of the second service, where the configuration information is used for recording a configuration parameter for a channel for transmitting the first service and the second service.