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Emergency Unlock Reset USER DESCRIPTION

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Copyright © Copyright Ericsson AB 2009–2010. All rights reserved. Disclaimer No part of this document may be reproduced in any form without the written permission of the copyright owner. The contents of this document are subject to revision without notice due to continued progress in methodology, design and manufacturing. Ericsson shall have no liability for any error or damage of any kind resulting from the use of this document.

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Contents

Contents 1

Introduction

1

1.1

Basic Characteristics

1

1.2

Dependencies and Associated Features

1

2

Feature Overview

3

2.1

Benefits

3

2.2

Impacts

3

2.3

Further Information

3

3

Feature Operation Details

5

3.1

Network Configuration Requirements

6

3.2

Emergency Unlock Reset Process Steps

6

4

Parameters

7

4.1

Introduced Parameters

7

4.2

Affected Parameters

7

5

Network Impact

9

6

Associated Features

11

6.1

Prerequisite Features

11

6.2

Affected Features

11

6.3

Affected System Functions

11

6.4

Related Features

11

7

Performance

13

7.1

KPIs

13

7.2

Counters and Events

13

8

O&M Information

15

8.1

License Management

15

8.2

Activating the Feature

15

8.3

Using the Feature

15

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Emergency Unlock Reset

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Introduction

1

Introduction This document describes the Emergency Unlock Reset feature. The information in this document reflects the feature at the time of its release. The main characteristics of the feature are presented below.

1.1

Basic Characteristics Feature identity: FAJ 221 0973, Emergency Unlock Reset This feature has replaced: N/A Connected to:

1.2

N/A

Dependencies and Associated Features This section lists related features. For more detailed information, see Section 6 on page 11. This feature requires the following RAN features to be active: •

No prerequisite features are required

Note: Emergency Unlock is a required feature but is present by default since it is a basic LTE feature. This feature may affect the following RAN features: •

Emergency Unlock

•

Any licensed feature restricting RBS capacity and function

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Emergency Unlock Reset

2

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Feature Overview

2

Feature Overview Emergency Unlock Reset is a licensed feature that can be used after the first or second activation of the Emergency Unlock feature. Use of the Emergency Unlock Reset feature will result in the following three events:

2.1

•

Immediately cancel the RBS emergency state if it is currently active

•

Clear the alarm generated by the use of the Emergency Unlock feature

•

Reset the number of future applications of the Emergency Unlock feature to two

Benefits This section describes the feature benefits and impacts in the LTE RAN. This feature will allow continued availability of the Emergency Unlock feature after it has been used. The Emergency Unlock Reset feature is the only way to clear the alarm generated after the first use of the Emergency Unlock feature.

2.2

Impacts The RBS may not be placed in the emergency state more than two times unless the Emergency Unlock Reset feature is applied.

2.3

Further Information For further information about this feature and related topics, refer to the following documentation: •

Licensing

•

Emergency Unlock of Software Licensing

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Emergency Unlock Reset

4

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Feature Operation Details

3

Feature Operation Details Emergency Unlock Reset is a licensed feature that works in conjunction with the Emergency Unlock feature which is part of the basic LTE functions. To perform an Emergency Unlock Reset is to apply a License Key File (LKF) containing an Emergency Unlock Reset key. Emergency Unlock Reset can be applied after the first or second activation of the Emergency Unlock feature and will return the Emergency Unlock feature to its initial state and clear the emergency unlock alarm. The following figure shows the various states of the Emergency Unlock feature and how the use of Emergency Unlock Reset will change the state:

Never used

Emergency unlock set

Emergency unlock reset

Emergency unlock reset

Use disabled

Active Emergency unlock reset

Emergency unlock reset After 7 days

After 7 days

Active again

Emergency unlock set

Use degraded L0000284A

Figure 1

States of Emergency Unlock

The Licensing MO attribute EmergencyStatus will show the current state of the Emergency Unlock feature. Possible states are: •

NEVER_USED: Emergency status has not been activated since the last license was installed

•

ACTIVE: The first time in emergency status. All license-controlled functions get unlimited capacity. The maximum time in this state is 7 days

•

USE_DEGRADED: All features and capacities are license-controlled in accordance with the installed LKF

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Emergency Unlock Reset

•

ACTIVE_AGAIN:. The second time in emergency status. All license controlled functions get unlimited capacity and all features are enabled. The maximum time in this state is 7 days

•

USE_DISABLED: All features and capacities are license-controlled in accordance with the installed LKF

If the emergency status is: NEVER_USED, USE_DEGRADED or USE_DISABLED the node is licensed controlled. If emergency status is ACTIVE or ACTIVE_AGAIN the RBS gets unlimited capacity and functions. The only way to return the emergency status to the NEVER_USED state is to perform an Emergency Unlock Reset by applying the new license key file containing the “EMERGENCY RESET KEY”. An alarm is raised upon entering the ACTIVE state. The alarm will remain until the Emergency Unlock Reset is applied and the state returns to NEVER_USED

3.1

Network Configuration Requirements The use of Emergency Unlock and Emergency Unlock Reset only makes sense if the RBS capacity and function is being constrained below its hard limit due to licensing restrictions.

3.2

Emergency Unlock Reset Process Steps This section describes the main process steps for the feature flow.

6

•

Order a new Emergency Unlock Reset license

•

Allocate/activate in ELIS the Emergency Unlock Reset license to the ENodeB identity (ULN)

•

Create a new LKF adding the license and key for Emergency Unlock Reset

•

Apply the license. See License Management for more information on how to load the Emergency Unlock Reset license

•

Verify that the EmergencyStatus is showing NEVER_USED and the emergency unlock alarm is cleared.

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Parameters

4

Parameters This section describes the parameters introduced by the feature and parameters affected by activating the feature.

4.1

Introduced Parameters There are no new parameters introduced by this feature.

4.2

Affected Parameters No parameters are significantly affected by the implementation of this feature.

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Emergency Unlock Reset

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Network Impact

5

Network Impact This section describes how the feature impacts the network functions and capabilities. If the RBS is currently in the emergency state, the Emergency Unlock Reset will restore capacity and functions to the licensed level again. RBS capacity and functions will change according to the licensed features available. NOTE: If any License Key has expired or in any way changed during the Emergency Unlock period, those keys will be expired after ending emergency unlock, hence that feature or features have a changed behavior. It is not the case that the RBS reverts back to the state it had when Emergency Unlock was ordered, it simply starts to enforce License Control again.

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Emergency Unlock Reset

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Associated Features

6

Associated Features This section describes how the feature affects other features and functions.

6.1

Prerequisite Features There are no prerequisite features for this feature.

6.2

Affected Features The following features are affected by Emergency Unlock Reset: Emergency Unlock Emergency Unlock Reset can cancel the emergency state created by Emergency Unlock, clear the alarm, and set the number of future use of Emergency Unlock to two.

6.3

Affected System Functions The following functions are affected by Emergency Unlock Reset: License Control

6.4

RBS capacity and functions will be impacted by the emergency state resulting from the use of the Emergency Unlock and Emergency Unlock Reset features.

Related Features There are no other features specifically related to this feature.

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Emergency Unlock Reset

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Performance

7

Performance This section describes performance indicators, counters, and events associated with Emergency Unlock Reset.

7.1

KPIs Since this feature is likely to be used during a period of time when traffic levels are irregular, KPI's are likely to be unstable. Both Emergency Unlock and Emergency Unlock Reset will introduce a step change in carried traffic. Changes in all KPI's are therefore expected.

7.2

Counters and Events There are no specific counters or events associated with this feature.

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Emergency Unlock Reset

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O&M Information

8

O&M Information This section describes how to activate and use the feature.

8.1

License Management See License Management for more information on how to load the Emergency Unlock Reset license.

8.2

Activating the Feature The Emergency Unlock Reset feature is activated by loading the License Key File containing the Emergency Unlock Reset key. The Emergency Unlock Reset key may only be used once, subsequent need to reset the Emergency Unlock feature will require ordering a new Emergency Unlock Reset license. The Emergency Unlock Reset license has an expiration date of 14 days, so license installation should be performed within this period after delivery.

8.3

Using the Feature After the first activation of the Emergency Unlock feature, an alarm is raised indicating that the Emergency Unlock feature can only be used one more time. The alarm will persist until the Emergency Unlock Reset feature is used. After the second activation of the Emergency Unlock feature, the alarm is cleared and a new alarm is raised. The alarm acts as a reminder that unless action is taken, the Emergency Unlock feature cannot be used again later since it has now been used twice. This alarm can only be cleared by performing an Emergency Unlock Reset.

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