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MOB_BSHO-REQ Base Station Handover Request message

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MOB_BSHO-REQ stands for "Mobile Station Base Station Handover Request". It is a message sent by a mobile station to a base station in a wireless communication system to request a handover from the current base station to a target base station. This message is an important part of the handover process in wireless communication systems such as GSM, UMTS, and LTE.

In this article, we will explain the MOB_BSHO-REQ message in detail, including its purpose, contents, and significance in the handover process.

Purpose of MOB_BSHO-REQ Message:

The purpose of the MOB_BSHO-REQ message is to initiate a handover process from the current base station to a target base station. The handover process is necessary in wireless communication systems to maintain a seamless connection between the mobile station and the network while the mobile station is moving. When a mobile station moves away from its current base station, the signal strength of the current base station decreases, and the signal strength of neighboring base stations increases. In such cases, the mobile station needs to perform a handover to the neighboring base station with a stronger signal to maintain a seamless connection.

The MOB_BSHO-REQ message is sent by the mobile station to the current base station to request a handover to a target base station. The target base station is selected by the mobile station based on certain criteria such as signal strength, quality, and available resources. The current base station receives the MOB_BSHO-REQ message and forwards it to the target base station. If the target base station is able to accept the handover request, it sends a handover command to the mobile station, and the handover process begins.

Contents of MOB_BSHO-REQ Message:

The MOB_BSHO-REQ message consists of several fields that contain information about the mobile station and the target base station. The following is a description of each field in the MOB_BSHO-REQ message:

  1. Message type: The message type field indicates that the message is a MOB_BSHO-REQ message.
  2. Transaction identifier: The transaction identifier field is used to identify the message in the handover process. It is generated by the mobile station and included in the MOB_BSHO-REQ message.
  3. Mobile station identity: The mobile station identity field contains the International Mobile Subscriber Identity (IMSI) of the mobile station. The IMSI is a unique identifier assigned to each mobile station in the network.
  4. Target base station identity: The target base station identity field contains the identity of the target base station that the mobile station wants to handover to. The identity may be a Cell Global Identity (CGI), a Radio Network Controller (RNC) Identity, or an eNodeB (eNB) Identity depending on the wireless communication system.
  5. Measurement results: The measurement results field contains the measurement results of the neighboring base stations. The mobile station measures the signal strength, quality, and available resources of neighboring base stations and includes the results in the MOB_BSHO-REQ message. The measurement results are used by the target base station to determine if it is able to accept the handover request.
  6. Cause of handover: The cause of handover field indicates the reason for the handover request. The cause may be due to a decrease in signal strength, quality, or available resources of the current base station.

Significance of MOB_BSHO-REQ Message:

The MOB_BSHO-REQ message is an important part of the handover process in wireless communication systems. It enables the mobile station to request a handover to a target base station when the signal strength, quality, or available resources of the current base station are inadequate for maintaining a seamless connection. Without the MOB_BSHO-REQ message, the mobile station would not be able to request a handover, and the connection would be lost, resulting in a dropped call or a disrupted data transfer.

The MOB_BSHO-REQ message also enables the target base station to make an informed decision about accepting or rejecting the handover request. The measurement results included in the MOB_BSHO-REQ message provide the target base station with information about the signal strength, quality, and available resources of neighboring base stations. This information is used by the target base station to determine if it has sufficient resources to accommodate the handover request and maintain a high-quality connection.

In addition, the MOB_BSHO-REQ message helps to optimize the use of network resources by enabling the mobile station to select the best available base station for handover. By measuring the signal strength, quality, and available resources of neighboring base stations, the mobile station can select the base station that offers the best overall performance, which can help to reduce the number of handovers and improve the overall efficiency of the network.

Conclusion:

The MOB_BSHO-REQ message is a crucial part of the handover process in wireless communication systems. It enables the mobile station to request a handover to a target base station when the signal strength, quality, or available resources of the current base station are inadequate for maintaining a seamless connection. The message also provides the target base station with information about the signal strength, quality, and available resources of neighboring base stations, which enables the target base station to make an informed decision about accepting or rejecting the handover request. By optimizing the use of network resources, the MOB_BSHO-REQ message helps to improve the overall efficiency and performance of the network.