An initial access method and apparatus
By using the spatial division multiplexing (SSB) transmission method, multiple SSB beams can be transmitted on the same time-frequency resources in the 5G NR system, which solves the problem of high base station power consumption and achieves the effect of reducing time domain overhead and maintaining beam resolution.
Patent Information
- Application Number
- CN202111393305.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-11-23
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2041-11-23
AI Technical Summary
In cellular communication systems, especially 5G NR systems, base stations still need to transmit a large number of public signals (such as SSB) when they are not in use, resulting in high energy consumption. Existing technologies make it difficult to maintain beam resolution and coverage while reducing time domain overhead.
The SSB transmission method using spatial division multiplexing transmits multiple SSB beams simultaneously on the same time-frequency resources. By introducing multiple common channels with consistent spatial filtering parameters, the time-domain overhead is reduced while maintaining beam resolution.
It effectively reduced the power consumption of the base station while maintaining the beam resolution and coverage of the SSB, reduced the probability of PRACH congestion, and improved the access success rate.