Dual Beam Mobility Management in 5G User Equipment
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Solution Overview
Problem
In 3GPP 5G communication systems, mobility and efficient beam management are challenges due to the high frequency bands used, which require advanced antenna techniques and network architectures to maintain connectivity and spectral efficiency.
Innovation Solution
The implementation of dual beam transmission capabilities in user equipment (UE) and transmission reception points (TRPs) allows for simultaneous broadcasting of multiple beams, enabling beam association, addition, release, and change operations to support mobility and flexible multi-point transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high frequency bands are used for 5G communication, then spectral efficiency is improved, but mobility and beam management become more difficult
Solution Approach 1:
The patent segments the communication connection into multiple independent beams instead of relying on a single beam. The UE and TRP establish and maintain multiple beam connections simultaneously, allowing the system to divide the communication task across multiple beam paths. This segmentation enables easier beam management during mobility as individual beams can be added or removed without affecting the entire connection.
Solution Approach 2:
The patent implements preliminary beam association and addition operations before handover is needed. The UE proactively establishes beam connections with potential target TRPs in advance, so when mobility is required, the handover can be executed seamlessly by switching to pre-established beams. This preliminary action reduces the complexity of real-time beam management during actual handover events.
2Reliability
If dual beam transmission is implemented, then mobility support is improved, but device complexity increases
Solution Approach 1:
The patent creates universal beam management procedures that can be applied across different mobility scenarios and network configurations. The same beam association, addition, release, and change operations are used whether the UE is moving between TRPs, cells, or performing handovers. This multi-functional approach reduces device complexity by providing a unified beam management framework rather than requiring separate mechanisms for different mobility cases.
Solution Approach 2:
The patent implements feedback mechanisms where the UE reports beam quality measurements and handover status to the network. This feedback enables the network to automatically adjust beam configurations and manage beam lifecycles based on actual channel conditions and mobility requirements. The feedback loop reduces device complexity by offloading beam management decisions to the network while maintaining reliable dual-beam operation.
3Reliability
If multiple beams are broadcast simultaneously, then handover performance is improved, but energy consumption increases
Solution Approach 1:
The patent implements partial beam transmission where not all beams are maintained at full power simultaneously. The system transmits multiple beams but adjusts their power levels based on current needs - active beams receive full power while standby or less critical beams are transmitted at reduced power. This partial action approach maintains handover performance by ensuring sufficient signal quality on primary beams while reducing overall energy consumption through selective power allocation.
Data Source
AI summary
Technology for a user equipment (UE) operable to communicate with an one or more extended transmission reception points (TRPs) is disclosed. The UE can signal a transceiver of the UE to simultaneously broadcast two or more transmission beams to establish a connection with one or more of an extended eNodeB or one or more extended transmission reception points (TRP), wherein each extended TRP is connected to the UE via an extended interface with the extended eNodeB. The UE can decode, at the UE, higher layer signaling received from the one or more extended TRPs to form beam association, beam addition, beam release, beam change, or a combination thereof between the UE and the one or more extended TRPs.