Secondary Cell State Configuration for LTE User Equipment
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Solution Overview
Problem
The introduction of a new state between activated and deactivated states for secondary cells in LTE systems creates a configuration ambiguity, as existing mechanisms only define activated and deactivated states, leading to a need for explicit state management for user equipment.
Innovation Solution
A state processing method that includes receiving and sending state configuration information to determine the initial state of secondary cells and their associated Bandwidth Parts (BWP) to a new state, with the option to set the new state timer, allowing for rapid activation and deactivation of secondary cells and BWPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a new state between activated and deactivated is introduced for secondary cells, then the state management capability is improved, but the configuration clarity deteriorates due to lack of explicit state definition
Solution Approach 1:
The patent applies preliminary action by pre-defining the initial state of secondary cells and associated BWPs through configuration information before the UE operates them. The base station sends state configuration information that explicitly sets the initial state (activated, deactivated, or new intermediate state) and configures the new state timer value in advance, eliminating configuration ambiguity when the UE encounters the new intermediate state during operation.
Solution Approach 2:
The patent introduces an intermediary mechanism (new state timer and associated configuration information) to bridge the gap between activated and deactivated states. This intermediary state with configurable timer allows smooth transition and explicit state management, resolving the configuration clarity issue by providing defined behavior for the intermediate state rather than leaving it ambiguous.
2Speed
If the initial state of secondary cells is set to activated, then the service activation speed is improved, but the energy consumption increases
Solution Approach 1:
The patent applies dynamics by making the initial state of secondary cells configurable rather than fixed. The base station can dynamically set the initial state (activated, deactivated, or new intermediate state with timer) based on service requirements and send appropriate configuration information to the UE. This allows the system to adapt between fast activation (activated state) and energy saving (deactivated state) scenarios.
Solution Approach 2:
The patent changes the parameter of initial state from a fixed value to a configurable parameter transmitted through state configuration information. By varying this parameter based on different operational scenarios, the system can optimize between activation speed and energy consumption trade-offs.
3Speed
If the new state timer is configured with a short duration, then the state transition speed is improved, but the stability of the new state deteriorates
Solution Approach 1:
The patent applies parameter changes by allowing the new state timer duration to be configurable through state configuration information from the base station. The timer value can be adjusted based on service requirements, enabling the system to balance between fast state transition (short timer) and adequate state stability (longer timer) depending on the specific operational context.
Data Source
AI summary
A state processing method, a user equipment and a base station are provided. The method includes: receiving state configuration information sent by a base station; and determining, based on the state configuration information, whether to set an initial state of the secondary cell and an initial state of a Bandwidth Part (BWP) associated with the secondary cell to a new state, where the new state is a state between an activated state and a deactivated state, and a quantity of secondary cells configured by the base station for a user equipment is at least one.