New Radio MBS Scheduling for Unicast-Broadcast Signal Collisions
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Solution Overview
Problem
Existing wireless communication systems face challenges in ensuring accurate signal transmission and reception while maintaining battery life, particularly in devices supporting multicast and broadcast services, where simultaneous unicast and broadcast transmissions can strain power requirements.
Innovation Solution
Implementing methods for wireless devices to receive and transmit multicast and broadcast services by adjusting scheduling and configuration information, including reporting interest indications and capability requests, to optimize simultaneous unicast and broadcast reception, and allowing for decoupled or shared processing capabilities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a wireless device receives both unicast and broadcast transmissions simultaneously, then the functionality and service capability are improved, but the power consumption increases
Solution Approach 1:
The patent implements dynamic scheduling where the base station adjusts the timing and resources of unicast and broadcast transmissions based on device capabilities and current network conditions. The network can dynamically switch between simultaneous transmission mode and time-division mode, optimizing power consumption while maintaining service capability.
Solution Approach 2:
The patent segments the reception process by introducing separate reception configurations for unicast and broadcast services. The network can configure different component carriers or time resources for each service type, allowing the device to process them separately rather than simultaneously, thereby reducing power consumption while maintaining both service capabilities.
2Reliability
If the network configures separate component carriers for unicast and broadcast services, then the collision between transmissions is reduced, but the device complexity increases
Solution Approach 1:
The patent implements a unified reception management mechanism where a single receiver component handles both unicast and broadcast services. The base station provides unified configuration information that specifies resource allocations for both service types, allowing the device to manage multiple services through a single processing path rather than requiring separate dedicated receivers for each service type.
3Productivity
If the wireless device reports capability information and interest indications, then the network can optimize resource allocation, but the signaling overhead increases
Solution Approach 1:
The patent merges the capability reporting and interest indication into a single unified signaling message exchanged between the device and base station. This combined reporting mechanism reduces the number of separate signaling transactions required, thereby reducing overall signaling overhead while still providing the network with both capability and interest information needed for optimized resource allocation.
Data Source
AI summary
A wireless device can receive, on a first component carrier (CC), a radio resource control (RRC) configuration message from a serving base station (BS). The RRC configuration message can comprise multicast and broadcast services (MBS) scheduling information or configuration information. The wireless device can further receive a transmission from a MBS BS comprising additional MBS information on the first CC. The wireless device can determine a collision between a unicast transmission and a broadcast transmission and transmit an indication of interest to the MBS BS. The wireless device can receive, from the MBS BS and on a second CC a RRC reconfiguration message comprising adjusted scheduling information or configuration information corresponding to the unicast transmission. The wireless device can receive the broadcast transmission from the MBS BS and the unicast transmission from the serving BS based at least in part on the adjusted scheduling information or configuration information.