摘要:
In order to assure reception of broadcast information by a user terminal handed over to a micro base station by CRE (Cell Range Expansion) and to reduce the number of transmission stopped subframes in a macro base station, the present invention provides a notification method for a user terminal to receive modification notification information for notifying modification in system information from the micro base station, the notification method including: the macro base station notifying the micro base station of a subframe pattern including a protection subframe to protect the modification notification information every a plurality of radio frames; and the micro base station notifying the user terminal of identification information of the protection subframe in the subframe pattern.
摘要:
In order to assure reception of broadcast information by a user terminal handed over to a micro base station by CRE (Cell Range Expansion) and to reduce the number of transmission stopped subframes in a macro base station, the present invention provides a notification method for a user terminal to receive modification notification information for notifying modification in system information from the micro base station, the notification method including: the macro base station notifying the micro base station of a subframe pattern including a protection subframe to protect the modification notification information every a plurality of radio frames; and the micro base station notifying the user terminal of identification information of the protection subframe in the subframe pattern.
摘要:
To control a radio link capacity in a backhaul link optimally, and to enhance a throughput in an access link, in the radio communications system using the relay transmission technology. A relay frequency allocation method according to the present invention includes: determining whether or not carrier aggregation is to be applied in a backhaul link from a radio base station apparatus to a mobile terminal device under the command of the radio base station apparatus, and/or an access link from a radio relay station apparatus to a mobile terminal device under the command of the radio relay station apparatus; allocating a frequency band for transmitting a downlink signal in the backhaul link and/or the access link, when applying the carrier aggregation; and transmitting the downlink signal with the allocated frequency band in the backhaul link and/or the access link.
摘要:
A communication control device includes a parameter acquisition unit which acquires a first parameter determined on the basis of the number of mobile stations connected to the first cell or the number of mobile stations connected to the second cell, a parameter determination unit which changes the number of mobile stations connectable to the first cell or the number of mobile stations connectable to the second cell on the basis of the first parameter, and a parameter notification unit which notifies at least any one of the first base station and the second base station of the determined second parameter.
摘要:
The present invention relates to a mobile communication method of sending and receiving the signaling of an S1AP/X2AP layer on DRB established between a radio base station DeNB and a relay node RN, the method comprising a step of generating a key KS1X2_int for performing integrity protection in the above DRB, in an SMC (security mode command) process performed in an attach process of the relay node RN.
摘要:
A radio base station includes a mobile communication system, a relay node and a radio base station connected via a radio bearer. A mobile station is configured to conduct a handover process between the state in which a radio bearer is set with the relay node in order to communicate via the relay node and the radio base station, and the state in which a radio bearer is set with the radio base station in order to communicate via the radio base station. The mobile station is configured such that during the handover process, control signals involved in the handover process are sent and received via a radio bearer between the relay node and the radio base station.
摘要:
User equipment having operating modes of at least a connected mode (CONN) and an idle mode (IDLE) includes a measurement unit configured to measure radio quality in the idle mode in accordance with measurement target information indicating that the user equipment is preset to report a measurement value of the radio quality to a base station, a storage unit configured to store the measurement target information and the measurement value of the radio quality measured by the measurement unit and a transmitting unit configured to, if a predefined report condition (log exist condition, FIG. 3) is satisfied, transmit an indicator indicative of presence of the measurement value of the radio quality to the base station in the connected mode and in response to a request from the base station, transmit a report signal including the measurement value of the radio quality.
摘要:
A mobile communication method according to the present invention includes: a step of a mobile switching center MME managing access information that defines accessible CSG-ID of a mobile station UE; a step of the mobile switching center MME accommodating a combination of eNB-IDs and CSG-IDs of a radio base station HeNB2 from a gateway device HeNB-GW; and a step of the mobile switching center MME determining whether the mobile station UE is accessible to the radio base station HeNB2 based on identification information of the mobile station UE and eNB-ID of the radio base station HeNB2 included in “HO Required” received from the radio base station eNB, which are included in the handover request signal, with reference to the access information and the combination.
摘要:
A radio base station includes a mobile communication system, a first relay node and a first radio base station connected via a radio bearer, a second relay node, and a second radio base station connected via a radio bearer. The first radio base station and the second radio base station are connected via a bearer, in which a mobile station is configured so as to conduct a handover process between a first and second state. In the first state a radio bearer is established with the first relay node in order to communicate. In the second state a radio bearer is established with the second relay node in order to communicate. The mobile station is configured such that in the handover process, control signals are transmitted and received via the radio bearer between the first relay node, first radio base station, second radio base station, and second relay node.
摘要:
A mobile communication method according to the present invention includes the steps of: (A) notifying, from a radio base station (DeNB) to a relay node (RN), a predetermined timing, when setting a connection between the radio base station (DeNB) and the relay node (RN); (B) scheduling, at the radio base station (DeNB), to transmit a downlink signal to the relay node (RN) at the predetermined timing; and (C) scheduling, at the relay node (RN), to transmit a downlink signal at a timing other than the predetermined timing.