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Communication control method, base station, user terminal, processor, and storage medium

a communication control and base station technology, applied in the direction of power management, electrical equipment, connection management, etc., can solve the problems of difficult compatibility between cellular communication, d2d communication, and the 3gpp standard that does not define specifications for appropriately controlling d2d communication

Inactive Publication Date: 2015-10-22
KYOCERA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

Enables compatible and controlled D2D communication, reducing network traffic and battery consumption, and ensuring interference avoidance by dynamically managing transmission power and radio resources.

Problems solved by technology

However, the current 3GPP standards do not define specifications for appropriately controlling the D2D communication.
Thus, there is a problem that the D2D communication and the cellular communication (radio communication between a user terminal and a base station) are difficult to be compatible with each other.

Method used

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  • Communication control method, base station, user terminal, processor, and storage medium
  • Communication control method, base station, user terminal, processor, and storage medium
  • Communication control method, base station, user terminal, processor, and storage medium

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embodiment

Overview of Embodiment

[0026]A communication control method according to the present embodiment is a communication control method used in a cellular mobile communication system that supports inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state where a radio connection with a network is established, comprising: a step of transmitting, by a base station, maximum power information indicating maximum transmission power permitted in the inter-terminal communication.

[0027]In the present embodiment, in the step of transmitting, the base station may transmit the maximum power information over a broadcast channel.

[0028]The communication control method according to the present embodiment may further comprise: a step of notifying, by a user terminal performing the inter-terminal communication, the base station that the maximum transmission power is exceeded when transmission power in the inter-terminal communication exceeds...

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Abstract

A communication control method used in a cellular mobile communication system that supports inter-terminal communication that is direct radio communication capable of being performed between user terminals in a state where a radio connection with a network is established, comprises a step of transmitting, by a base station, maximum power information indicating maximum transmission power permitted in the inter-terminal communication.

Description

TECHNICAL FIELD[0001]The present invention relates to a communication control method, a base station, a user terminal, a processor, and a storage medium, which are used in a cellular mobile communication system supporting D2D communication.BACKGROUND ART[0002]In 3GPP (3rd Generation Partnership Project) which is a project aiming to standardize a cellular mobile communication system, the introduction of Device to Device (D2D) communication is discussed as a new function after release 12 (see Non-Patent Document 1).[0003]In the D2D communication, a plurality of user terminals proximal to one another are able to perform direct communication with each other in the state where a radio connection with a network is established (in the state where synchronization is achieved).[0004]In addition, the D2D communication is also called Proximity Service communication.PRIOR ART DOCUMENTNon-Patent Document[0005]Non-Patent Document 1:3GPP technical report “TR 22.803 V0.3.0” May 2012SUMMARY OF THE I...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04W52/38H04W72/00H04W76/02H04W52/24H04W52/36
CPCH04W52/383H04W52/242H04W92/18H04W76/023H04W72/005H04W52/367H04W76/14H04W76/20H04W72/51H04W72/30H04W24/02H04W24/08H04W52/16H04W52/322
Inventor MORITA, KUGOYAMAZAKI, CHIHARU
Owner KYOCERA CORP