Relay UE Paging Message Identity Segmentation
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Solution Overview
Problem
Relay UE faces challenges in processing paging messages, as it needs to determine whether the message contains its own UE identity or that of a remote UE, especially when in different states (IDLE or INACTIVE), and must correctly handle these identities to initiate appropriate procedures.
Innovation Solution
The relay UE receives a paging message, obtains UE identities from upper layers or the RRC layer, and determines whether the message contains its own or the remote UE's identity, generating a paging indication accordingly, and initiating procedures such as entering an IDLE state or resuming an RRC connection based on these determinations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the relay UE monitors and receives paging messages for both itself and the remote UE, then the reachability of the remote UE is ensured, but the complexity of processing the paging message increases
Solution Approach 1:
The relay UE segments the paging message processing by separately identifying and handling paging messages intended for itself versus those intended for the remote UE. It extracts and compares UE identities from the paging message against stored identities, dividing the complex processing task into manageable identification and routing steps.
Solution Approach 2:
The relay UE acts as an intermediary between the base station and the remote UE. It receives paging messages from the base station, processes them to determine intended recipients, and forwards relevant paging messages to the remote UE, thereby mediating the communication and ensuring reachability while managing processing complexity.
2Measurement precision
If the relay UE needs to confirm different UE identities in the paging message, then the accuracy of message routing is improved, but the processing time increases
Solution Approach 1:
The relay UE performs preliminary actions by pre-storing UE identities (both its own and the remote UE's identity) in its memory before receiving paging messages. When a paging message arrives, it immediately compares the message content against these pre-stored identities, eliminating the need for complex real-time identity resolution and reducing processing time while maintaining accuracy.
3Adaptability or versatility
If the relay UE stores multiple UE identities, then the ability to handle paging for both relay and remote UE is improved, but the memory requirements increase
Solution Approach 1:
The relay UE implements multi-functionality by using a single storage structure to hold multiple UE identities (both its own identity and the remote UE's identity) that serve different purposes. This universal storage approach allows the relay UE to handle various paging scenarios (self-paging, remote UE paging, and forwarded paging) without requiring separate dedicated storage for each function, thereby improving adaptability while minimizing memory requirements.
Data Source
AI summary
Provided in the present invention are a processing method for a relay UE and user equipment. In the processing method for a relay UE, the relay UE serves a remote UE, and the processing method includes: the relay UE receiving a paging message transmitted from a base station, and confirming a UE identity in the received paging message; the relay UE obtaining a UE identity of the remote UE from an upper layer or an RRC layer of the relay UE; the relay UE determining whether the received paging message includes the UE identity of the remote UE; and if the paging message includes the UE identity of the remote UE, the relay UE generating a paging indication that includes the UE identity of the remote UE or indicates that the UE identity of the remote UE has been received.