Wireless Device Paging Response Control for Power Reduction
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently controlling the transmission of response signals, particularly in reducing power consumption and message latency, especially in scenarios requiring selective response transmissions.
Innovation Solution
A method and apparatus for a wireless device that receives a paging signal and downlink data, determining the transmission of a paging response or ACK information based on information included in the signal, allowing for selective transmission and reducing unnecessary signaling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE always transmits a response signal to the network upon receiving paging or DL data, then the network can reliably receive acknowledgment information, but the UE's power consumption increases and signaling overhead increases
Solution Approach 1:
The patent implements dynamic response signal transmission by introducing a field in the paging message that indicates whether the network requires a response signal from the UE. This transforms the static behavior of always transmitting responses into a dynamic behavior where responses are transmitted only when necessary, as determined by network conditions and data type, thereby reducing power consumption while maintaining reliability when needed
Solution Approach 2:
The patent changes the parameter of response signal transmission from a fixed state (always transmit) to a variable state (transmit conditionally). By modifying the paging message to include response requirement indication and having the UE adjust its transmission behavior based on this parameter, the system achieves optimal balance between reliability and power consumption
2Reliability
If the UE always transmits a response signal to the network, then the network can maintain accurate communication state tracking, but the message latency increases due to unnecessary signaling exchanges
Solution Approach 1:
The patent extracts the essential function of response signal transmission (acknowledging data receipt) from the mandatory always-transmit framework. By selectively removing unnecessary response transmissions based on network indication, the system eliminates redundant signaling steps that contribute to latency while preserving the core function when actually needed
3Loss of information
If the UE transmits response signals for all paging and DL data receptions, then the network receives complete acknowledgment information, but the signaling overhead increases
Solution Approach 1:
The patent applies partial action by having the UE transmit response signals only for a subset of paging or DL data receptions rather than all of them. The network indicates which specific messages require acknowledgments, allowing the UE to perform partial acknowledgment actions that suffice for maintaining information completeness while reducing overall signaling volume
Data Source
AI summary
The present disclosure relates to method and apparatus for controlling a transmission of a response signal in a wireless communication system. According to an embodiment of the present disclosure, a method performed by a wireless device in a wireless communication system, comprises receiving a signal for a paging from a network; and receiving downlink (DL) data related to the paging, wherein a transmission of at least one of a paging response for the paging or acknowledgment (ACK) information for the DL data is determined based on information included in the signal for the paging.