Known Cell Definition With Beamforming Delay
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Solution Overview
Problem
Existing definitions for a known cell in wireless communication do not account for transmit beamforming of network devices or receive beamforming of terminal devices, making it impossible to define a known cell in scenarios where either or both devices are capable of beamforming.
Innovation Solution
Propose a method to define a known cell condition by categorizing cell conditions into 'known cell and beam', 'known cell and unknown beam', and 'unknown cell', with distinct delay requirements for each category, taking into account the stability of both the target cell and the transmit beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beamforming is implemented in network devices or terminal devices, then communication performance is improved, but the existing known cell definition becomes inapplicable
Solution Approach 1:
The patent segments the known cell definition into three distinct categories: known cell with known beam, known cell with unknown beam, and unknown cell. This segmentation allows the system to handle beamforming scenarios by providing specific definitions and delay requirements for each case, making the definition adaptable to beamforming implementations while maintaining communication performance improvements.
2Device complexity
If a unified known cell definition is used without beamforming considerations, then simplicity is maintained, but delay requirements become inaccurate for beamforming scenarios
Solution Approach 1:
The patent applies local quality by assigning different delay requirements to different cell categories based on beamforming status. Specifically, known cell with known beam gets the shortest delay requirement, known cell with unknown beam gets intermediate delay, and unknown cell gets the longest delay. This localized differentiation maintains simplicity where applicable while providing accurate delay requirements for beamforming scenarios.
Data Source
AI summary
Embodiments of the present disclosure provide methods, devices and computer readable media for communication. In an aspect, a method for communication comprises receiving, at a terminal device, from a network device an indication for the terminal device to establish a connection with a target cell. The method also comprises determining a condition as to whether the target cell and a transmit beam of the target cell for the terminal device are known to the terminal device. The method also comprises determining, based on the condition, a delay for the terminal device to establish the connection. The method further comprises establishing the connection within the delay. The embodiments of the present disclosure can improve communication performance of a terminal device.