Base Station HARQ Information Acquisition for CCCH Decoding
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Solution Overview
Problem
Current technologies are unable to effectively obtain Hybrid Automatic Repeat Request (HARQ) information for the Common Control Channel (CCCH) in mobile communication systems, leading to potential decoding failures and reduced signal reception success rates.
Innovation Solution
A method and apparatus where a base station receives a request message from a Radio Network Controller (RNC) to obtain HARQ information for the CCCH, allowing the base station to correctly decode signals and improve data reception by establishing the corresponding relationship between CCCH logical channels and HARQ information.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the current 3GPP protocol interface definitions are used, then the common E-DCH MAC flow information is defined for DCCH and DTCH logic channels, but the HARQ profile information for CCCH logic channel cannot be obtained
Solution Approach 1:
The RNC performs preliminary action by determining the HARQ profile information for the CCCH logic channel before the UE sends data, and includes this information in the common E-DCH MAC-d flow information that is sent to the Node B. This ensures the Node B has the necessary HARQ information available before needing to decode CCCH data.
Solution Approach 2:
The existing common E-DCH MAC-d flow information structure, originally designed for DCCH and DTCH channels, is extended to also carry HARQ profile information for the CCCH logic channel. This makes the information structure universal and applicable to multiple logic channel types without creating separate dedicated structures.
2Adaptability or versatility
If the common E-DCH MAC flow information is used for DCCH and DTCH channels, then those channels can obtain HARQ information, but the CCCH channel remains without HARQ information
Solution Approach 1:
The common E-DCH MAC-d flow information structure is designed to serve multiple logic channel types (DCCH, DTCH, and CCCH) universally. By including the logic channel identifier and corresponding HARQ profile information together, the same information structure can be used across different channel types, achieving multi-functionality without requiring channel-specific modifications.
Data Source
AI summary
The present invention discloses a method and an apparatus for obtaining the Hybrid Automatic Repeat Request (HARQ) information of a CCCH, wherein the method for obtaining the HARQ information of the CCCH comprises: a base station receiving a request message from a Radio Network Controller (RNC), wherein the request message is used to indicate the HARQ information used by the CCCH; the base station obtaining the HARQ information used by the CCCH according to the request message. According to the present invention, the base station obtains the HARQ information of the CCCH according to the message from the radio network controller, thus which is convenient for both the base station and a UE to know exactly the corresponding relationship between the CCCH logical channel and the HARQ used by the CCCH logical channel, thereby guaranteeing Node B to perform decoding correctly and improving the reception success rate of signal and data.