Serving-Grant Allocation for HSUPA Channel Usage
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Solution Overview
Problem
The existing high-speed uplink packet access systems lack flexibility in serving-grant allocation, leading to reduced network control and increased system complexity due to the dependency of stored-secondary-grant allocation on primary/secondary grant switching, resulting in inefficient channel usage and potential data transmission issues.
Innovation Solution
A serving-grant allocation method that allows independent allocation of stored-secondary-grant based on the initial allocation message, eliminating the need for Node B to allocate stored-secondary-grant values via E-AGCH, thereby enhancing channel bandwidth usage and network control while simplifying system processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If stored-secondary-grant allocation depends on primary/secondary grant switching, then network control is maintained, but system complexity increases and channel usage efficiency decreases
Solution Approach 1:
The patent segments the grant allocation process into two independent parts: serving-grant allocation and stored-secondary-grant allocation. The mobile subscriber independently allocates stored-secondary-grant based on the initial allocation message without waiting for primary/secondary grant switching, thereby reducing system complexity while maintaining network control flexibility.
Solution Approach 2:
The patent implements preliminary action by allowing the mobile subscriber to allocate stored-secondary-grant in advance based on the initial allocation message, rather than waiting for grant switching events. This proactive allocation reduces processing complexity and improves channel usage efficiency while the network retains control through the initial allocation message.
2Reliability
If Node B allocates stored-secondary-grant via E-AGCH, then grant management is centralized, but channel bandwidth is wasted and system complexity increases
Solution Approach 1:
The patent extracts the stored-secondary-grant allocation function from the centralized Node B control process and transfers it to the mobile subscriber. The mobile subscriber independently allocates stored-secondary-grant based on the initial allocation message, eliminating the need for additional E-AGCH transmissions and reducing channel bandwidth consumption while maintaining allocation reliability.
Solution Approach 2:
The patent implements self-service by enabling the mobile subscriber to autonomously allocate stored-secondary-grant without requiring continuous Node B intervention via E-AGCH. The subscriber uses information from the initial allocation message to perform self-allocation, reducing channel bandwidth usage and system complexity while maintaining reliable grant management.
3Adaptability or versatility
If primary/secondary grant switching is used for stored-secondary-grant allocation, then network control is maintained, but data transmission continuity may be interrupted
Solution Approach 1:
The patent applies preliminary action by enabling the mobile subscriber to allocate stored-secondary-grant in advance based on the initial allocation message, before any grant switching occurs. This ensures that the subscriber has the necessary grant information ready, preventing transmission interruptions while the network maintains control through the initial allocation parameters.
Solution Approach 2:
The patent implements feedback mechanisms where the mobile subscriber monitors the initial allocation message and autonomously adjusts stored-secondary-grant allocation based on transmission needs. This feedback loop ensures continuous data transmission while maintaining network control flexibility through the initial allocation framework.
Data Source
AI summary
The present invention provides a serving-grant allocation method for a high-speed uplink packet access system. It includes these steps: a. Transmission of the serving-grant initial allocation message to mobile subscribers via network; b. The mobile subscriber decides whether setting the stored-secondary-grant is needed based on the initial allocation message description. If it is needed, then set the stored-secondary-grant to the value indicated in the aforementioned initial allocation message. The present invention solves problems such as the mobile subscriber can not allocate stored-secondary-grant during wireless channel allocation, or the primary/secondary grant can only allocate one out of the two, and the subsequent process issues that occur as a result of stored-secondary-grant not being set up during the initial allocation with the existing technology. The present invention effectively enhances the usage of the wireless channel and network's capacity to exercise control over mobile subscribers, thereby reducing system complexity, and improving system performance.