Hybrid driving method based on time-driven and event-driven in wireless communication system simulation
A wireless communication system, time-driven technology, applied in the field of communication, can solve problems such as single time-driven mode, not suitable for time-driven, can not reflect the characteristics of WALN, etc., to achieve the effect of reducing sampling frequency, improving accuracy and simulation efficiency
Active Publication Date: 2019-05-24
展视网(北京)科技有限公司
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[0007] Most of the existing wireless communication system-level simulation platforms use a single time-driven or event-driven approach. System-level simulations similar to LTE-A cellular topologies have obvious time characteristics and are suitable for time-driven approaches. WALN system simulation is not suitable for time-driven, fixed time sampling frequency can not reflect the characteristics of WALN, at this time event-driven is more suitable for him
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[0028] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.
[0029] First introduce the event driver. The event driver completes the entire simulation process by continuously processing events. figure 2 is the formation block diagram of the event list in the event driver. The main components of the event driver (Simulator) include event (Event) definition, generation (MakeEvent), insertion (Insert), scheduling (Schedule) and processing (Process). The main division of labor of each module is as follows: Event is mainly responsible for the basic definition of events, MakeEvent uses a large number of template metaprogramming to realize the binding of events and operations, and returns events for inserting function calls; Calendar is responsible for event sorting and storage as an event collector; The event scheduler takes out the events in the event lis...
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The present invention provides a hybrid driving method based on time driving and event driving in wireless communication system simulation. The method comprises the following steps of 1 setting a fixed time step as a time frame within the wireless communication system simulation duration; dividing the whole wireless communication system simulation duration into a plurality of time frames, taking the ending moment of each time frame as a simulation reference point, and orderly updating the user states at each simulation reference point; 2 obtaining an event list within the corresponding time frame according to an initial event set in each time frame and a timestamp corresponding to each event, and arranging each event in the event list within the corresponding time frame according to the own timestamp attribute; 3 starting a driving engine in the wireless communication system simulation, and according to the order of the time frames, orderly executing the events in the event list in each time frame, and ending the simulation until all events in the last time frame are executed.
Description
technical field [0001] The invention belongs to the technical field of communication, and relates to a driving method in system-level simulation, in particular to a hybrid driving method based on time-driven and event-driven in wireless communication system simulation. Background technique [0002] There are two main types of simulation methods for wireless communication systems: link-level simulation and system-level simulation. There are two mainstream methods of system-level simulation: static simulation and dynamic simulation. [0003] Static simulation, also called snapshot method. By taking a certain number of snapshots of the scene of the wireless mobile communication system, an ideal system balance point is established for each snapshot, and the performance of the entire system is analyzed through statistics. The statistical average accuracy mainly depends on the number of snapshots. If the number of snapshots is too small, the confidence level will decrease. Howev...
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IPC IPC(8): H04W24/06
CPCH04W24/06
Inventor 李国兵欧文超吕刚明杜清河任品毅刘猛
Owner 展视网(北京)科技有限公司