Base Station Coverage Compensation for MBMS Service Continuity
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless communication systems, when a base station switches to a power-off or idle state for energy saving, there is a risk of service interruption for user equipment receiving MBMS services due to lack of signaling procedures between base stations, leading to incomplete coverage compensation and potential handover failures.
Innovation Solution
A method involving signal transmission between base stations to determine MBMS service support and coverage compensation feasibility, using X2 interface configuration and an MBMS coordinating entity to ensure seamless service continuity by identifying and coordinating coverage between neighboring base stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If a base station switches to power-off or idle state for energy saving, then power consumption is reduced, but coverage compensation fails and service interruption occurs due to lack of signaling procedures with neighboring base stations
Solution Approach 1:
The patent applies preliminary action by establishing signaling procedures between base stations before the active base station switches to power-off or idle state. The neighboring base station is pre-notified and pre-configured to compensate for coverage, ensuring seamless service continuity when the switch occurs. This prevents service interruption by preparing the compensation mechanism in advance.
2Loss of energy
If a base station switches to power-off or idle state, then energy consumption is reduced, but handover fails and coverage compensation is incomplete due to lack of coordination with neighboring base stations
Solution Approach 1:
The patent implements feedback by establishing a signaling mechanism where the active base station notifies neighboring base stations of its intent to switch states, and the neighboring base stations provide feedback regarding their ability to compensate for coverage. This feedback loop ensures that coverage compensation is only activated when the neighboring base station is capable and properly configured, preventing incomplete compensation.
Solution Approach 2:
The patent uses a signaling procedure as an intermediary mechanism between the active base station and neighboring base stations. This intermediary enables coordination and information exchange, allowing the system to determine whether coverage compensation is feasible before the base station switches states, thereby ensuring effective coverage compensation.
3Use of energy by stationary object
If a base station supporting MBMS switches to power-off state without signaling procedure with neighboring base station, then power is saved, but MBMS service interruption occurs because neighboring base station may not support MBMS
Solution Approach 1:
The patent applies preliminary action by having the base station notify neighboring base stations of its MBMS service provision and intent to switch to power-off state before the switch occurs. This allows the neighboring base station to verify MBMS support capability in advance and prepare appropriate compensation measures, ensuring MBMS service continuity.
Solution Approach 2:
The patent implements feedback through a signaling procedure where the active base station provides information about MBMS service to neighboring base stations, and the neighboring base station responds with feedback regarding its MBMS support capability. This feedback mechanism ensures that coverage compensation for MBMS services is only activated when the neighboring base station is confirmed to support MBMS, preventing service interruption.
Data Source
AI summary
The present invention relates to a method of transmitting, by a base station, a signal for compensating for coverage in a wireless communication system, and an apparatus therefor. A method of transmitting, by a base station, a signal for compensating for coverage, comprises: receiving information indicating that a first base station is a base station supporting a multimedia broadcast/multicast service (MBMS), from the first base station in a state enabling switching off; receiving a coverage compensation request message containing MBMS-related information of the first base station from the first base station; and transmitting, by a compensation base station to the first base station, a coverage compensation response message indicating whether it is possible to compensate for the coverage of the first base station, wherein whether it is possible to compensate for the coverage of the first base station is determined on the basis of the MBMS-related information.