摘要:
A mobile communication system capable of performing communication between a user equipment device connected to a relay device and a core network if the relay device moves. A relay device sets a tracking area of a base station device to be connected with the own device as a tracking area of the own device. For example, when the relay device moves along an arrow, the tracking area of the relay device is changed from a first tracking area to which a fourth base station device belongs to a third tracking area to which a tenth base station device belongs. Upon change of the tracking area of the relay device as described above, a user equipment device transmits a tracking area update request signal of the own device to a target second mobility management entity.
摘要:
In a mobile communication system, an RRM measurement set is set as a collection of cells to become targets on which a UE performs a process of detecting whether or not radio communication is allowed. Among the cells in the RRM measurement set, a CoMP measurement set is set as a collection of cells to become candidates on which the UE performs a process of detecting whether or not coordinated communication (CoMP communication) is allowed. Among the cells of the CoMP measurement set, a CoMP active set is set as a collection of cells to become targets on which the UE performs the process of detecting whether or not CoMP communication is allowed.
摘要:
A mobile communication system capable of continuing communication between a relay device and a base station device if the relay device moves. In a handover process, when it is judged that an establishment cause for RRC connection is attached from an RN, a target eNB judges whether the own device has the DeNB function. In a case of judging that the own device does not have the DeNB function, the target eNB notifies the RN of an RRC connection rejection. When being notified of the RRC connection reject, the RN stops the handover process and then returns to a source eNB.
摘要:
A radio communication system capable of, in a case where a base station device is movable, easily estimating the location of a base station device and easily estimating the location of a user equipment device using the estimation results, and also provide a user equipment device, a base station device, and a management device included in the radio communication system. In addition to an E-SMLC for UE for use in location estimation of a target UE, an E-SMLC for eNB for use in location estimation of an eNB is provided. The E-SMLC for eNB estimates location information of an eNB in an E-UTRAN and performs a process, such as the management of moving of a target eNode B_s and a target eNode B_uu based on the estimated location information.
摘要:
A mobile communication system capable of continuing communication between a relay device and a base station device if the relay device moves. In a handover process, when it is judged that an establishment cause for RRC connection is attached from an RN, a target eNB judges whether the own device has the DeNB function. In a case of judging that the own device does not have the DeNB function, the target eNB notifies the RN of an RRC connection rejection. When being notified of the RRC connection reject, the RN stops the handover process and then returns to a source eNB.
摘要:
A random number sequence is previously generated by the function f8 for data confidentiality processing, which generates a random number sequence, and stored in a random number sequence memory (buffer). When data (message) is input, the random number sequence stored in the random number sequence memory is obtained, and the data (message) is encrypted by an XOR circuit to generate ciphertext data. In case of decrypting data, a random number sequence is also previously generated by the function f8 for data confidentiality processing and stored in the random number sequence memory (buffer). When the ciphertext data is input, by the XOR circuit, the random number sequence stored in the random number sequence memory is read and the ciphertext data is decrypted into the data (message).
摘要:
A data error control method for data passing through error correction encoding. It has a radio frame including fields for storing the data, a data number associated with said data and a retransmission request data number. It receives the radio frame from a data transmitting end. If an error is detected as a result of decoding the data received, it stores the data number associated with said data into the field of the radio frame as the retransmission request data number, and transmits the radio frame to the data transmitting end. It receives the retransmission data associated with the data number from the data transmitting end. It can speed up the retransmission control and reduce the processing load of the network.
摘要:
A mobile communication system capable of performing communication between a user equipment device connected to a relay device and a core network if the relay device moves. A relay device sets a tracking area of a base station device to be connected with the own device as a tracking area of the own device. For example, when the relay device moves along an arrow, the tracking area of the relay device is changed from a first tracking area to which a fourth base station device belongs to a third tracking area to which a tenth base station device belongs. Upon change of the tracking area of the relay device as described above, a user equipment device transmits a tracking area update request signal of the own device to a target second mobility management entity.
摘要:
In a mobile communication system, an RRM measurement set is set as a collection of cells to become targets on which a UE performs a process of detecting whether or not radio communication is allowed. Among the cells in the RRM measurement set, a CoMP measurement set is set as a collection of cells to become candidates on which the UE performs a process of detecting whether or not coordinated communication (CoMP communication) is allowed. Among the cells of the CoMP measurement set, a CoMP active set is set as a collection of cells to become targets on which the UE performs the process of detecting whether or not CoMP communication is allowed.
摘要:
A mobile communication system includes a movable user equipment device, a plurality of base station devices configured to perform radio communication with the user equipment device, and a relay device movably configured to relay radio communications between the user equipment device and the base station devices. In a handover process of switching a base station device to be connected with the relay device from a base station device being a moving source to a base station device being a moving destination along with moving of the relay device, the base station device being a moving source selects the base station device being a moving destination from base station devices other than a base station device that does not have a function supporting the relay device, and performs the handover process such that the relay device is connected to the selected base station device.