Uplink FSTD Resource Allocation With Independent Tx Back-Off
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In existing frequency switched transmit diversity (FSTD) technology, transmit chains (Txs) are required to apply the same output back-off power, leading to reduced power when their output back-off levels are different, affecting uplink performance.
Innovation Solution
The method allows for independent output back-off on each transmit chain by supporting multiple independent Txs, enabling separate power management based on individual Tx capabilities, and allocating resource sets to each Tx to optimize power usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the same back-off power is applied to all transmit chains in FSTD technology, then the system maintains simplicity in power management, but the power of transmit chains is reduced when their output back-off levels differ
Solution Approach 1:
The patent segments the power management of transmit chains by introducing independent back-off control for each Tx. Instead of applying a uniform back-off power to all transmit chains, the system now allows each Tx to have its own back-off level (e.g., first back-off for first Tx, second back-off for second Tx), enabling optimized power allocation that prevents unnecessary power reduction while maintaining operational simplicity through structured control signaling.
2Power
If independent back-off power is allowed for each transmit chain, then the power of transmit chains is maintained or enhanced, but the complexity of power management increases
Solution Approach 1:
The patent introduces an intermediary mechanism in the form of standardized control signaling between the network device and terminal device. The network device determines appropriate back-off levels for each transmit chain and communicates these through defined signaling procedures, mediating the complexity of independent power management. This intermediary approach allows independent back-off control without requiring complex distributed decision-making, as the network device centrally manages the back-off parameters while the terminal device executes them.
3Ease of operation
If resource allocation is performed uniformly across all transmit chains, then the resource management is simple, but the uplink transmission performance is limited when transmit chains have different capabilities
Solution Approach 1:
The patent applies local quality by enabling differentiated resource allocation for different transmit chains based on their individual characteristics and back-off levels. Instead of uniform resource management, the system allocates frequency domain resources (such as physical uplink shared channel resources) specifically tailored to each Tx's capabilities, allowing optimal resource utilization that enhances uplink transmission performance while maintaining manageable complexity through structured allocation rules.
Data Source
AI summary
This application provides a communication method and apparatus, and relates to the communication field. A terminal device can send uplink information on a plurality of mutually independent transmit chains Txs. The method includes: The terminal device sends capability information, where the capability information indicates that the terminal device supports FSTD of the plurality of mutually independent Txs; receives first information, where the first information indicates an uplink resource, the uplink resource includes a plurality of resource sets, and the plurality of resource sets respectively correspond to the plurality of Txs; and sends uplink information on the plurality of resource sets.