How can I implement a pipe in ionic?

Hello, I am new to the ionic world and every time I find new concepts and ways of doing things, the fact is that I have a list of objects that I bring from an API and I want to filter the results by word, basically what What I want is:

 <ion-searchbar (ionInput)="getItems($event)" (ionCancel)="cancel($event)" 
 [ngModel]="busqueda"></ion-searchbar>

 <ion-list>
 <ion-item *ngFor="let item of items | filter="busqueda"> 
 {{item.title}}
 </ion-item>
 </ion-list>

I have searched the web and tried some things but it does not work for me, I do not know how to implement it.

My home.ts is the following

import { Component } from '@angular/core';
import { NavController } from 'ionic-angular';
import {BqeProvider} from '../../providers/bqe/bqe';

@Component({
selector: 'page-home',
templateUrl: 'home.html'
})

export class HomePage {
public items:any;
busqueda : string = "";

constructor(public navCtrl: NavController, public bqe:BqeProvider) {

}

ionViewDidLoad(){
this.InitializeItems();
}

InitializeItems(){


this.bqe.obtenerDatos().subscribe(
  (respon) => { 
    //this.alquran = respon;

    this.items = respon;
   });
 }

 getItems(ev: any) {}


 cancel(ev:any){
 this.InitializeItems();
 }
 }