NodeB Uplink Closed Loop Transmit Diversity Activation
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Solution Overview
Problem
The technical problem in existing communication systems is that the initialized active status for uplink closed loop transmit diversity in NodeB is not specified, which hinders the effective implementation of this technology.
Innovation Solution
A method and device for activating uplink closed loop transmit diversity, where a NodeB receives configuration information from a radio network controller that includes an information element indicating the initialized active status, allowing the NodeB to activate the appropriate status for user equipment, using either predefined or enumerated statuses, ensuring proper function implementation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If uplink closed loop transmit diversity is implemented without specifying initialized active status, then the system can support multiple antenna configurations, but the implementation cannot proceed due to lack of initialization specification
Solution Approach 1:
The patent applies preliminary action by defining the initialized active status in advance through configuration information received from the radio network controller. The NodeB receives and stores the initialized active status before actually activating uplink closed loop transmit diversity, ensuring that the system has a predetermined starting state rather than requiring ad-hoc decisions during operation.
2Reliability
If the NodeB receives and processes configuration information with initialized active status, then the activation process becomes well-defined, but the system complexity increases due to additional information processing
Solution Approach 1:
The patent segments the configuration information into distinct elements, specifically extracting the initialized active status as a separate information element from the overall configuration message. This segmentation allows the NodeB to process only the relevant initialization parameter without handling the entire configuration set, reducing processing complexity while ensuring reliable activation.
3Adaptability or versatility
If five different active statuses are supported for uplink closed loop transmit diversity, then the system becomes more adaptable to different transmission scenarios, but the configuration and control become more complex
Solution Approach 1:
The patent introduces an intermediary mechanism where the radio network controller acts as a mediator that provides the initialized active status to the NodeB through standardized configuration information. This intermediary approach allows the system to support multiple active statuses (five different configurations) without requiring each NodeB to independently manage the complexity of selecting and switching between all possible status combinations.
Data Source
AI summary
Disclosed are a method and device for activating uplink closed loop transmit diversity (UL CLTD). The method comprises: a NodeB receives configuration information for the UL CLTD from a radio network controller, wherein the configuration information for the UL CLTD comprises an information element carrying the initialized UL CLTD active status, and the information element carrying the initialized UL CLTD active status is used for indicating an active status to be used when the NodeB activates the UL CLTD of a user equipment (UE); the NodeB activates the UL CLTD of the UE using the active status indicated by the information element carrying the initialized UL CLTD active status. The disclosure solves the problem in the prior art of the unclearness of which active status is to be used as the initialized active status, so as to ensure the implementation of the UL CLTD function.