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Mobile station, wireless base station, and communication control method

A technology of wireless base station and mobile station, applied in the field of mobile station, wireless base station and communication control

Active Publication Date: 2012-11-07
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In the case of (Formula 2), both hysteresis and offset operate with a hysteresis

Method used

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  • Mobile station, wireless base station, and communication control method
  • Mobile station, wireless base station, and communication control method
  • Mobile station, wireless base station, and communication control method

Examples

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Embodiment Construction

[0064] (Configuration of the mobile communication system according to the first embodiment of the present invention)

[0065] Next, a mobile communication system according to a first embodiment of the present invention will be described with reference to the drawings. Throughout the drawings for describing the present embodiment, elements having the same functions are attached with the same symbols, and overlapping descriptions are omitted.

[0066] The mobile communication system of this embodiment is a system to which, for example, the LTE-Advanced scheme is applied. That is, the mobile communication system according to this embodiment includes a radio base station eNB and a mobile station UE communicating with the radio base station eNB, and the radio base station eNB and the mobile station UE communicate using the LTE-Advanced scheme. In addition, the mobile station UE may also be called a user equipment.

[0067] When the LTE-Advanced method is applied, "carrier aggrega...

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Abstract

The disclosed mobile station (UE) is equipped with: measurement units (102) that measure the wireless quality of a currently communicating cell or a neighboring cell for each carrier among at least two carriers; a determination unit (104) that determines whether or not the wireless base station (eNB) should be notified of the measurement results of the measurement units (102) for each carrier among the at least two carriers; and a transmission unit (106) that transmits the measurement results of the measurement units (102) to the wireless base station (eNB) when the determination unit (104) has determined that the wireless base station (eNB) should be notified of the measurement results of the measurement units (102). Along with the measurement results relating to the carrier for which it has been determined by the determination unit (104) that the wireless base station (eNB) shall be notified of the measurement results of the measurement units (102), the transmission unit (106) transmits measurement results relating to carriers other than said carrier.

Description

technical field [0001] The present invention relates to a mobile station, a wireless base station and a communication control method. Background technique [0002] Wideband Code Division Multiple Access (WCDMA: Wideband Code Division Multiplexing Access), High-Speed ​​Downlink Packet Access (HSDPA: High-Speed ​​Downlink Packet Access), High-Speed ​​Uplink Packet Access (HSUPA: High-Speed The Long Term Evolution (LTE: Long Term Evolution) method, which is a successor communication method such as the Uplink Packet Access method, has been studied and standardized by 3GPP, the standardization organization of WCDMA. [0003] In addition, an LTE-advanced (LTE-advanced) scheme is being studied by 3GPP as a communication scheme succeeding the above-mentioned LTE scheme. The requirements for the LTE-Advanced scheme are summarized in Non-Patent Document 1. [0004] In the LTE-Advanced method, as a request condition, "carrier aggregation (Carrier aggregation)" is agreed to be perform...

Claims

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Application Information

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IPC IPC(8): H04W36/30H04W36/00
CPCH04L5/001H04W24/10H04L5/0057H04W36/0058H04W36/0085H04W36/30
Inventor 石井启之岩村干生
Owner NTT DOCOMO INC
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