UE Baseband Processing Capability via Bandwidth-Layer Product
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Solution Overview
Problem
Current methods for determining a user equipment's (UE) maximum supported bandwidth for carrier aggregation do not account for multiple-input multiple-output (MIMO) layers, leading to potential overburdening of the UE with excessive bandwidth configurations.
Innovation Solution
A method that involves the UE transmitting carrier aggregation capability information, including a maximum supported layers bandwidth calculated by multiplying the maximum supported bandwidth by the number of MIMO layers, which is then used in conjunction with network resource parameters to configure carrier aggregation, ensuring the total bandwidth does not exceed the UE's capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If carrier aggregation is configured to increase bandwidth, then data rates are improved, but the UE may be overburdened by excessive bandwidth configurations that exceed its processing capacity
Solution Approach 1:
The patent changes the parameter representation from standalone bandwidth to a composite parameter (bandwidth × layers) that captures the true processing burden. This allows the network to configure carrier aggregation and MIMO layers together such that their combined burden does not exceed UE capabilities, resolving the contradiction between maximizing data rate and respecting UE processing limits
Solution Approach 2:
The patent adds a new dimension to bandwidth configuration by introducing the layer multiplier. Instead of considering only bandwidth width, the system now considers bandwidth × layers as a two-dimensional resource consumption metric, enabling proper matching of network configuration to UE baseband processing capacity
2Productivity
If MIMO layers are increased to improve data transmission capacity, then throughput is enhanced, but the UE's baseband processing burden increases beyond its capabilities
Solution Approach 1:
The patent modifies the capability reporting parameter to include the layer multiplier, transforming it from a simple bandwidth indicator to a composite metric (bandwidth × layers). This enables the network to properly assess the baseband processing burden and configure MIMO layers appropriately, balancing throughput enhancement with UE processing complexity limits
3Ease of operation
If bandwidth is configured without considering MIMO layers, then configuration simplicity is maintained, but accurate representation of UE processing burden is lost
Solution Approach 1:
The patent enhances the capability parameter from simple bandwidth to bandwidth × layers composite metric. This single parameter change simultaneously maintains configuration simplicity (it's still just one number exchanged between UE and network) while dramatically improving measurement precision of the actual processing burden, resolving the contradiction between ease of operation and measurement accuracy
Data Source
AI summary
A method, apparatus, system, and computer-readable storage media are provided. Carrier aggregation capability information can be received from a UE. The carrier aggregation capability information can comprise a maximum supported bandwidth multiplied by MIMO layers. The maximum supported layers bandwidth is then utilized in conjunction with one or more network resource parameters to configure carrier aggregation on the UE, with the total bandwidth of carrier aggregation multiplied by MIMO layers configured on the UE does not exceed the maximum supported layers bandwidth.