Base Station Segmentation for Mobile Station Power Reduction
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Solution Overview
Problem
In wireless broadcast and multicast systems, the current methods require mobile stations (MS) to maintain a continuous radio frequency receiving state, leading to increased power consumption and redundancy in signal reception due to the need to transmit information at a low encoding rate acceptable to MSs with poor channel conditions, even for those with better conditions.
Innovation Solution
The method involves obtaining basic and increment information bits based on target encoding rates, allowing MSs in good channel conditions to decode with basic information bits only and MSs in poor conditions to receive additional increment bits as needed, thereby optimizing power usage and reducing redundancy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the BS transmits information at a low encoding rate to ensure reliable reception for MSs with poor channel conditions, then the reliability of information reception is improved, but the power consumption of MSs increases and receiving efficiency decreases due to continuous radio frequency receiving state and redundant data reception
Solution Approach 1:
The transmitted information is segmented into two distinct parts: basic information bits and increment information bits. The basic information bits contain essential data that can be decoded independently, while the increment information bits contain additional redundant information. MSs with good channel conditions can decode successfully using only the basic information bits and stop receiving, while MSs with poor channel conditions continue to receive the increment information bits to supplement their decoding. This segmentation allows differentiated reception strategies based on channel quality, reducing power consumption for MSs that don't need continuous reception.
Solution Approach 2:
Instead of transmitting complete redundant information for all MSs, the system transmits only partial information (basic information bits) that is sufficient for MSs with good channel conditions. The increment information bits are transmitted separately and only needed by MSs with poor channel conditions. This partial action approach ensures that MSs with good conditions receive exactly what they need without excessive redundancy, while MSs with poor conditions receive additional information only when necessary for successful decoding.
2Reliability
If the BS transmits information at a low encoding rate to ensure reliable reception for all MSs, then the reliability of information reception for MSs with poor channel conditions is improved, but the receiving efficiency decreases due to a large number of redundancies in the received signals
Solution Approach 1:
The transmitted information is segmented into two distinct parts: basic information bits and increment information bits. The basic information bits contain essential data that can be decoded independently, while the increment information bits contain additional redundant information. MSs with good channel conditions can decode successfully using only the basic information bits and stop receiving, while MSs with poor channel conditions continue to receive the increment information bits to supplement their decoding. This segmentation allows differentiated reception strategies based on channel quality, reducing power consumption for MSs that don't need continuous reception.
Solution Approach 2:
The system extracts and separates the essential information content (basic information bits) from the redundant information (increment information bits). By taking out the core data that can be decoded with higher efficiency and transmitting it separately, the system allows MSs with good channel conditions to receive and decode only the essential parts without being burdened by unnecessary redundancies, thereby improving receiving efficiency while maintaining reliability for all users.
Data Source
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AI summary
An method for transmitting information according to a target encoding rate is provided according to the embodiments of the present invention, which includes: obtaining basic information bits and at least one increment information bit from information encoded by a base station (BS) according to a target encoding rate; and sequentially transmitting the basic information bits and the at least one increment information bit to a mobile station (MS) within a determined time interval, in which the target encoding rate is an encoding rate used by the BS when the MS is capable of correctly decoding the information transmitted by the BS. A BS and an MS are further provided according to the embodiments of the present invention, thereby saving electric quantity of the MS.