Relay Data Forwarding Modes for Low-Power Wireless Access
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in supporting a diverse range of wireless devices with varying capabilities and power consumption levels, particularly low-cost and low-power devices, in efficiently exchanging data and accessing cellular networks.
Innovation Solution
Implementing techniques for data forwarding between remote devices and relay devices, utilizing control information from a network to facilitate communication, including normal forward, local path, and local forward modes, with bearer configuration information to manage data routing and exchange.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If low-cost and low-power wireless devices directly access cellular networks, then network coverage and connectivity are improved, but device power consumption and operational cost increase
Solution Approach 1:
The patent introduces a relay device as an intermediary between the remote wireless device and the cellular network. The relay device receives data from the remote device via sidelink communication and forwards it to the network through Uu interface communication, enabling the remote device to access the network without direct connection, thus reducing its power consumption while maintaining connectivity.
2Adaptability or versatility
If relay devices are introduced to enable data forwarding, then support for low-power devices is improved, but system complexity and data routing overhead increase
Solution Approach 1:
The patent implements dynamic data forwarding where the relay device adapts its forwarding behavior based on received control information. The network can dynamically configure the relay device to forward data to specific remote devices or groups of remote devices, allowing flexible adaptation to different device capabilities and usage scenarios without hardcoding complex routing logic.
Solution Approach 2:
The patent segments the communication system into distinct functional components: the cellular network (Uu interface), the relay device (handling both Uu and sidelink communications), and remote wireless devices. This segmentation allows each component to be optimized independently and simplifies the overall system management by clearly defining interfaces and responsibilities.
3Adaptability or versatility
If multiple forwarding modes are implemented, then flexibility in data routing is improved, but control information processing and configuration overhead increase
Solution Approach 1:
The patent implements three distinct forwarding modes (unicast, groupcast, and broadcast) that provide varying degrees of routing specificity. The network can select the appropriate mode based on the specific communication requirements, implementing partial action (only the necessary forwarding mode) rather than requiring all modes to be simultaneously active, thus reducing processing overhead while maintaining flexibility.
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
This disclosure relates to techniques for performingrelay communication by a relay wireless device in a wireless communication system. A relay wireless device may receive bearer configuration information from a network. Based on the bearer configuration information, the UE may establish a bearer with a remote wireless device. The relay wireless device may forward data to/from the remote wireless device using the bearer.