Wireless Response Information Resource Allocation in Multi-Carrier Systems
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in resource allocation for response information transmission, particularly in multi-carrier environments, leading to increased data and error detection complexities, which affect transmission efficiency and performance.
Innovation Solution
A method for allocating resources for response information transmission based on a transmission environment, using either an implicit or explicit allocation scheme within the control channel, allowing for efficient calculation and retransmission decisions in wireless communication systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If response information is transmitted for each piece of data in multi-carrier environments, then transmission accuracy and error detection capability are improved, but resource allocation complexity and data processing complexity increase
Solution Approach 1:
The patent segments response information transmission by allocating dedicated resources for different types of response information (ACK/NACK for data, CQI for channel quality, SR for scheduling requests). This segmentation allows the system to maintain high reliability through comprehensive error detection while managing complexity by organizing resource allocation into distinct categories rather than treating all response information uniformly.
Solution Approach 2:
The patent introduces an intermediary mechanism where the base station allocates specific uplink resources in advance for response information transmission. This intermediary resource allocation layer mediates between the need for reliable acknowledgment transmission and the complexity of dynamic resource management, providing a structured framework that simplifies both UE transmission and base station processing.
2Productivity
If response information resources are allocated dynamically for each transmission, then transmission efficiency and adaptability to channel conditions are improved, but processing overhead and system complexity increase
Solution Approach 1:
The patent applies preliminary action by having the base station pre-allocate uplink resources for response information transmission before actual data transmission occurs. This advance resource assignment reduces processing overhead during active transmission by eliminating the need for dynamic resource negotiation, while still maintaining adaptability through the ability to re-allocate resources for different transmission scenarios.
Solution Approach 2:
The patent utilizes parameter changes by allowing the base station to adjust resource allocation parameters (such as resource block assignments, modulation schemes, and power levels) based on channel conditions and traffic requirements. This enables the system to optimize transmission efficiency for different scenarios while managing complexity through standardized parameter adjustment procedures rather than fundamental system changes.
3Productivity
If multiple component carriers are used to increase data capacity, then system throughput and data transmission capability are improved, but the amount of response information and resource allocation complexity increase
Solution Approach 1:
The patent applies merging by combining multiple ACK/NACK responses from different component carriers into a single uplink transmission opportunity. Instead of requiring separate resource allocations for each carrier's response, the system merges these responses and transmits them collectively using pre-allocated uplink resources, thereby reducing the total amount of response information that needs to be managed while maintaining high throughput across multiple carriers.
Solution Approach 2:
The patent implements universality by designing a unified resource allocation framework that handles multiple types of response information (ACK/NACK, CQI, SR) across multiple component carriers through a single set of allocation rules. This multi-functional approach allows the same resource allocation mechanism to serve diverse purposes, reducing the overall complexity despite the increased quantity of response information from multiple carriers.
Data Source
AI summary
A method for allocating a resource for response information transmission and transmitting according to transmission conditions in a wireless communication system according to the present invention comprises the steps of: setting a specific field value of a control channel depending on the allocation method by determining a transmission method or transmission quantity of data to be transmitted to a user's terminal from a data channel, a method of generating response information of the data according to the transmission quantity or transmission method, and an allocation method for indicating the response information resource; transmitting the data channel including the transmitting data and the control channel to the user's terminal; confirming the response information, which is transmitted from a resource allocated by the allocation method, for the data transmitted from the user's terminal; and determining whether the transmitted data area retransmitted according to the confirmed response information.