MOB_MSHO-RSP Mobile Station Handover Response message

Last updated on May 8, 2023

The Mobile Station Handover Response (MOB_MSHO-RSP) message is a signaling message used in cellular networks to facilitate the handover of a mobile station (MS) from one base station (BS) to another during an ongoing call or data session. The MOB_MSHO-RSP message is sent by the target base station to the source base station in response to a MOB_MSHO-REQ message sent by the source base station to request the handover of the mobile station. This message contains critical information that enables the source base station to perform the handover of the mobile station smoothly and without interruption to the ongoing call or data session.

In this article, we will discuss the MOB_MSHO-RSP message in detail, including its purpose, format, and contents.

Purpose of the MOB_MSHO-RSP Message

The MOB_MSHO-RSP message is a response message sent by the target base station to the source base station in response to a MOB_MSHO-REQ message sent by the source base station. The purpose of the MOB_MSHO-RSP message is to acknowledge the MOB_MSHO-REQ message and to provide the necessary information to enable the source base station to perform the handover of the mobile station smoothly and without interruption to the ongoing call or data session.

The MOB_MSHO-RSP message contains several key parameters that are used by the source base station to prepare for the handover. These parameters include the timing advance, frequency, and channel information for the target base station, as well as any other relevant information needed to complete the handover process.

Format of the MOB_MSHO-RSP Message

The MOB_MSHO-RSP message is a signaling message that is transmitted between base stations over the air interface using a specified protocol. The message is sent from the target base station to the source base station and contains the following fields:

Message Type: This field identifies the MOB_MSHO-RSP message type.
Transaction Identifier: This field is used to match the MOB_MSHO-RSP message with the corresponding MOB_MSHO-REQ message.
Target BS Identifier: This field identifies the target base station to which the mobile station is being handed over.
Timing Advance: This field provides the timing advance value for the target base station. The timing advance is a measure of the time delay between the mobile station and the base station, and is used to synchronize the transmission of signals between the two.
Frequency: This field specifies the frequency to be used by the mobile station after handover to the target base station.
Channel Type: This field specifies the type of channel to be used by the mobile station after handover to the target base station.
Encryption Information: This field provides information about the encryption to be used for the handover.
Additional Information: This field may contain any additional information that the target base station wants to provide to the source base station to facilitate the handover process.

The format of the MOB_MSHO-RSP message is designed to be efficient and compact, while providing all the necessary information to enable the source base station to perform the handover smoothly and without interruption.

Contents of the MOB_MSHO-RSP Message

The MOB_MSHO-RSP message contains several critical parameters that are used by the source base station to perform the handover of the mobile station smoothly and without interruption. These parameters include the timing advance, frequency, and channel information for the target base station, as well as any other relevant information needed to complete the handover process.

The following are the key contents of the MOB_MSHO-RSP message:

Message Type: This field identifies the MOB_MSHO-RSP message type.
Transaction Identifier: This field is used to match the MOB_MSHO-RSP message with the corresponding MOB_MSHO-REQ message sent by the source base station.
Target BS Identifier: This field identifies the target base station to which the mobile station is being handed over. It contains the identity of the target base station, including its cell identity and the location area code (LAC).
Timing Advance: This field provides the timing advance value for the target base station. The timing advance is a measure of the time delay between the mobile station and the base station, and is used to synchronize the transmission of signals between the two. The timing advance value is important for ensuring that the mobile station can properly synchronize with the target base station after handover.
Frequency: This field specifies the frequency to be used by the mobile station after handover to the target base station. The frequency is an essential parameter for the mobile station to continue communication with the network after the handover.
Channel Type: This field specifies the type of channel to be used by the mobile station after handover to the target base station. The channel type may be different from the one used by the source base station, and it is important for the mobile station to switch to the new channel type after the handover is complete.
Encryption Information: This field provides information about the encryption to be used for the handover. The encryption information may include the encryption algorithm and the encryption key used for securing the communication between the mobile station and the target base station after the handover.
Additional Information: This field may contain any additional information that the target base station wants to provide to the source base station to facilitate the handover process. For example, it may contain information about the quality of service (QoS) parameters for the new connection, or any other information that may be relevant for the handover.

The MOB_MSHO-RSP message is critical for the handover process, as it provides the necessary information for the source base station to prepare the mobile station for handover to the target base station. The timing advance, frequency, and channel type parameters are essential for ensuring that the mobile station can continue communication with the network without interruption after the handover is complete. The encryption information and additional information parameters may also be important for ensuring the security and quality of the handover process.

Conclusion

The MOB_MSHO-RSP message is a critical signaling message used in cellular networks to facilitate the handover of a mobile station from one base station to another during an ongoing call or data session. The message is sent by the target base station to the source base station in response to a MOB_MSHO-REQ message sent by the source base station to request the handover of the mobile station. The MOB_MSHO-RSP message contains several critical parameters, including the timing advance, frequency, and channel type, which are essential for ensuring that the mobile station can continue communication with the network without interruption after the handover is complete. Understanding the format and contents of the MOB_MSHO-RSP message is essential for network engineers and telecommunications professionals involved in designing, deploying, and maintaining cellular networks.