Sidelink Grant Generation Using Alternative Resource Pools After Beam Failure
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Solution Overview
Problem
Existing wireless communication systems face inefficiencies in beam management and grant creation due to beam failures, leading to delayed and power-consuming operations when selecting resource pools for transmission in scenarios like sidelink beam failure.
Innovation Solution
A method and device for performing wireless communication that involves detecting beam failures and selecting a resource pool other than the failed beam, triggering beam recovery procedures, and creating grants on available resource pools to ensure efficient sidelink data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If beam failure recovery procedure is triggered and executed, then communication reliability is improved, but time consumption and power consumption increase
Solution Approach 1:
The patent applies preliminary action by having the terminal device detect beam failure conditions and prepare alternative resource pools in advance. When beam failure is detected, the device has already identified suitable alternative resource pools from pre-configured sets, enabling faster transition without waiting for exhaustive search procedures, thus reducing recovery time while maintaining reliability.
Solution Approach 2:
The patent implements skipping by directly selecting from pre-configured alternative resource pools instead of performing complete beam search procedures. The terminal device skips the time-consuming steps of重新establishing beam connections by directly transitioning to alternative resource pools that were pre-identified, thereby rushing through the recovery process while ensuring reliable communication.
2Reliability
If beam failure recovery procedure is triggered and executed, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring alternative resource pools and detection parameters before beam failure occurs. This eliminates the need for continuous monitoring and exhaustive search procedures during recovery, reducing power consumption while maintaining reliable communication through pre-prepared alternatives.
Solution Approach 2:
The patent implements skipping by bypassing intensive power-consuming operations such as complete beam sweeping and re-authentication. The terminal device directly transitions to pre-identified alternative resource pools, skipping the energy-intensive steps of重新establishing beam connections, thereby reducing power consumption during recovery.
3Reliability
If resource pool selection is performed after beam failure detection, then communication continuity is maintained, but time delay increases
Solution Approach 1:
The patent applies preliminary action by pre-configuring multiple resource pools with different beam directions and characteristics before beam failure occurs. When failure is detected, the device immediately selects from these pre-prepared options rather than performing real-time selection, maintaining communication continuity while minimizing time delay through instant transition.
Solution Approach 2:
The patent implements skipping by directly transitioning to alternative resource pools from pre-configured sets, bypassing the time-consuming processes of real-time beam selection and resource allocation. This rushing through of the selection process maintains communication continuity while significantly reducing time delay during beam failure recovery.
Data Source
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AI summary
Provided are a method for a first device to perform wireless communication and a device supporting same. The method may comprise the steps of: acquiring information related to a plurality of resource pools; detecting beam failure related to at least one resource pool among the plurality of resource pools; selecting a first resource pool among the plurality of resource pools; and generating a grant on the first resource pool. For example, the first resource pool may be a resource pool other than the at least one resource pool in which the beam failure has been detected among the plurality of resource pools.