Wireless Communication Pilot Scheduling Through Beam-Time Mapping
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Solution Overview
Problem
In wireless communication systems where the terminal device and base station are unaware of their relative direction, transmitting/receiving pilot signals in a beam sweeping manner leads to low resource utilization, increased power consumption, and prolonged receiving delays.
Innovation Solution
Determine a resource for transmitting/receiving pilot signals based on a correspondence between beam sweeping directions and time domain locations using first information, allowing for direct transmission/reception without beam sweeping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pilot signal is transmitted/received in beam sweeping manner, then relative direction can be discovered, but resource utilization is low
Solution Approach 1:
The patent applies preliminary action by pre-configuring a correspondence relationship between beam sweeping directions and time domain locations before actual communication. This pre-established mapping allows the terminal device to directly determine the appropriate time domain location for pilot signal transmission based on the beam sweeping direction, eliminating the need for real-time beam sweeping and thereby improving resource utilization while maintaining direction discovery capability.
2Reliability
If pilot signal is transmitted/received in beam sweeping manner, then relative direction can be discovered, but receiving delay is long
Solution Approach 1:
The patent uses preliminary action by pre-establishing the correspondence between beam sweeping directions and time domain locations. This allows the terminal device to directly determine the correct time domain location for pilot signal transmission without performing real-time beam sweeping, thereby significantly reducing receiving delay while still enabling accurate direction discovery.
Solution Approach 2:
The patent applies the skipping principle by allowing the terminal device to skip the beam sweeping process entirely. Through the pre-configured correspondence relationship, the terminal device can directly jump to the correct time domain location for pilot signal transmission, eliminating the time-consuming beam sweeping operation and achieving rapid direction discovery.
3Reliability
If pilot signal is transmitted/received in beam sweeping manner, then relative direction can be discovered, but device power consumption is increased
Solution Approach 1:
The patent applies preliminary action by pre-configuring the correspondence relationship between beam sweeping directions and time domain locations. This eliminates the need for the terminal device to perform real-time beam sweeping operations, thereby significantly reducing device power consumption while maintaining the ability to discover relative direction.
Solution Approach 2:
The patent uses the skipping principle to allow the terminal device to skip the energy-intensive beam sweeping process. By directly determining the time domain location through the pre-established correspondence relationship, the terminal device avoids continuous scanning and significantly reduces power consumption while still achieving direction discovery.
Data Source
AI summary
Disclosed are a wireless communication method and a communications apparatus. One example method includes: transmitting or receiving a first reference signal, wherein a resource for transmitting or receiving the first reference signal is determined based on first information, and the first information indicates a correspondence between one or more beam sweeping directions and one or more time domain locations.