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Communication control device, communication control method, program, terminal device, and communication control system

A communication control and terminal device technology, applied in transmission systems, wireless communication, digital transmission systems, etc., can solve problems such as decreased throughput, increased buffer traffic, and decreased resource utilization.

Active Publication Date: 2015-03-04
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the link direction configuration update cannot keep up with the change in UL-DL traffic ratio, the amount of buffered traffic will increase and there will be problems of reduced resource utilization and decreased throughput

Method used

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  • Communication control device, communication control method, program, terminal device, and communication control system
  • Communication control device, communication control method, program, terminal device, and communication control system
  • Communication control device, communication control method, program, terminal device, and communication control system

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Embodiment Construction

[0047] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Note that, in this specification and the appended drawings, elements that have substantially the same function and structure are denoted with the same reference numerals, and repeated description is omitted.

[0048] In addition, description is made in the following order.

[0049] 1 Overview

[0050] 1-1. Configure link direction configuration

[0051] 1-2. Signaling Link Direction Configuration

[0052] 1-3. Basic principles

[0053] 2. Configuration of communication control system

[0054] 2-1. System overview

[0055] 2-2. Exemplary configuration of traditional terminals

[0056] 2-3. Exemplary Configuration of Dynamic TDD Termination

[0057] 2-4. Exemplary Configuration of Communication Control Device

[0058] 2-5. Configuration mode change

[0059] 3. Example of processing flow

[0060] 3-1. Processing on the terminal side

[00...

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Abstract

[Problem] To enable the link direction configuration of a terminal device to more quickly keep pace with variations in the UL-DL traffic ratio. [Solution] A communication control device that controls wireless communication performed by one or more terminal devices according to a time division duplex method, the communication control device being equipped with: a setting unit that sets link direction configurations indicating the link direction on a sub-frame by sub-frame basis for each frame containing multiple sub-frames: and a control unit that signals the link direction configurations that have been set by the setting unit to each terminal device. The setting unit sets a first and a second link direction configuration with different periods, and the control unit signals the first link direction configuration to terminal devices belonging to a first terminal group, and signals the second link direction configuration to terminal devices belonging to a second terminal group.

Description

technical field [0001] The present disclosure relates to a communication control device, a communication control method, a program, a terminal device, and a communication control system. Background technique [0002] Recently, a high-speed cellular radio communication scheme called Long Term Evolution (LTE) is being implemented in practice. LTE schemes are classified into FD-LTE schemes and TD-LTE schemes based on differences in duplex schemes. The FD-LTE scheme adopts Frequency Division Duplex (FDD) as a duplex scheme in which uplink and downlink operate in mutually different frequency bands. The TD-LTE scheme adopts Time Division Duplex (TDD) as a duplex scheme in which uplink and downlink operate in the same frequency band. Both the FD-LTE scheme and the TD-LTE scheme use a frame format in which one radio frame (with a duration of 10 ms) is composed of 10 subframes, and each subframe has a duration of 1 ms. In the FD-LTE scheme, the link direction does not change with ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W72/12H04W72/04H04W88/10
CPCH04W72/0446H04W72/042H04W72/23H04L1/1854H04W72/30H04L5/1469H04L5/0055H04L5/14
Inventor 高野裕昭水泽锦
Owner SONY CORP