You can't do this with a simple layout update xml. The easiest way to achieve this is create a new root template specific to your cms page. Steps for this is given below.
1. Layout Update XML File
Go to CMS > Pages > [Select your CMS Page] > Design > Layout Update XML
section. Put this layout update code there.
<!-- removing default page heading block -->
<reference name="content">
<remove name="page_content_heading" />
</reference>
<!-- defines new root template;add new page head block -->
<reference name="root">
<action method="setTemplate">
<template>custom/page/cms_1column.phtml</template>
</action>
<block type="core/template" name="cms_page_heading" as="cms_page_heading" template="cms/content_heading.phtml"/>
</reference>
This code basically performs 3 actions.
It removes the default CMS Page heading block from layouts; So it will eventually removes the default title section that you are viewing in your cms page.
It defines a new root template, custom/page/cms_1column.phtml
for your CMS Page; I will explain why we need this.
We are again redefining CMS Page heading block, but this time it comes inside root
block and not inside content
block.
2. Define Custom Root Template
Now create a new file app\design\frontend\[package]\[theme]\template\custom/page/cms_1column.phtml
and copy paste all content of app\design\frontend\[package]\[theme]\template\page/1column.phtml
to that file. Then call our heading block inside that file as like this.
<div class="wrapper">
<?php echo $this->getChildHtml('global_notices') ?>
<div class="page">
<?php echo $this->getChildHtml('header') ?>
<?php echo $this->getChildHtml('cms_page_heading') ?>
<div class="main-container col1-layout">
<div class="main">
...
As you can see <?php echo $this->getChildHtml('cms_page_heading') ?>
this part renders the CMS Page heading block and it comes above layout-div block. You can adjust the position of your CMS page heading block according to your need as per your need.
We are using a new root template only for adding this custom CMS Page heading block. This will avoid touching of core files and hence would be the best solution in this case.