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Radio communication system, radio communication device, and radio communication method

一种无线通信系统、无线通信装置的技术，应用在无线通信系统领域，能够解决反馈信息不适当内容等问题

Inactive Publication Date: 2012-04-04
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem that the feedback information in the prior art becomes inappropriate when performing collaborative communication.

Method used

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  • Radio communication system, radio communication device, and radio communication method
  • Radio communication system, radio communication device, and radio communication method
  • Radio communication system, radio communication device, and radio communication method

Examples

Experimental program
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no. 1 Embodiment approach

[0066] Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. figure 1 It is a schematic diagram showing the configuration of the wireless communication system according to the present embodiment. The mobile communication system as the wireless communication system in this embodiment includes: base station apparatuses 100a and 100b (also referred to as first communication apparatuses, cells, transmission points, and transmission antenna groups); mobile terminal device 200 (also referred to as a second communication device, receiving terminal); and network 300 to which base station devices 100a and 100b are connected. exist figure 1 In the illustrated example, the mobile terminal device 200 is located in an area where the cell C1 which is the communication range of the base station device 100a overlaps with the cell C2 which is the communication range of the base station device 100b. Since the base station apparatus 100a a...

no. 2 Embodiment approach

[0173] A second embodiment of the present invention will be described. The wireless communication system in this embodiment includes the same base station devices 100a, 100b and mobile terminal device 200 as the communication system in the first embodiment, but the resource element mapping units 106a to 106m in the base station device 100a are related to the antenna ports 5 to 106m. The mapping method of the resource element mapping part corresponding to 8 is different. Hereinafter, the description will focus on the parts different from those of the first embodiment.

[0174] In this embodiment, if Figure 9 As shown, the case where the base station apparatuses 100a and 100b further add antenna ports to the antenna ports P1a to P4a and P1b to P4b supporting the mobile terminal apparatus 200 that only communicates with the base station apparatus will be described. The additional antenna ports P5a to P8a and P5b to P8b are supported in consideration of both the case where the ...

no. 3 Embodiment approach

[0189] A third embodiment of the present invention will be described. The radio communication system in this embodiment includes the same base station devices 100a and 100b and a mobile terminal device 200a as those in the mobile communication system in the first embodiment. The mobile terminal device 200a is different from the mobile terminal device 200 only in the feedback information generation unit 212a. Hereinafter, the description will focus on the parts different from those of the first embodiment.

[0190] Figure 14 It is a schematic block diagram showing the configuration of the mobile terminal device 200a in this embodiment. The mobile terminal device 200a includes: receiving antennas 201a to 201l, OFDM signal demodulation units 202a to 202l, resource element demapping units 203a to 203l, filter unit 204, deprecoding unit 205, layer demapping unit 206, demodulation unit 207a to 207n, descrambling units 208a to 208n, decoding units 209a to 209n, propagation path e...

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PUM

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Abstract

Disclosed is a radio communication system comprising a first transmission line state-measuring section and a second transmission line state-measuring section, wherein when a second communication device measures the state of a transmission line between a first communication device and the second communication device using the reference signal from the first communication device, the first transmission line state-measuring section measures the state of the transmission line state including the interference due to the signal from another first communication device, and the second transmission line state-measuring section measures the state of the transmission line between the first communication device and the second communication device while suppressing the interference due to the signal from the another first communication device, whereby a proper feedback information can be generated regardless as to when cooperative communication is performed.

Description

technical field [0001] The present invention relates to a wireless communication system, a wireless communication device, and a wireless communication method. [0002] this application claims priority based on Japanese Patent Application No. 2009-106251 for which it applied to Japan on April 24, 2009, and uses the content here. Background technique [0003] In mobile wireless communication systems such as LTE (Long Term Evolution; (3rd generation) long-term evolution), LTE-Advanced (LTE Advanced), and WiMAX (Worldwide Interoperability for Microwave Access; Worldwide Interoperability for Microwave Access), multiple The area covered by the base station (transmitting station, transmitting device, eNodeB) is arranged in a honeycomb structure, which can expand the communication area. In addition, although different frequencies are used between adjacent cells (sectors), mobile terminals (receiving stations, mobile stations, mobile terminal devices 200, UE (User Equipment)) locate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04J11/00H04L5/00H04W72/08H04W72/54
CPCH04L2001/0092H04B7/0689H04L1/0026H04L2025/03808H04L5/0035H04L5/0073H04B17/005H04L5/0023H04L5/0048H04J11/0053H04B7/0678H04L5/0016H04L25/0234H04B7/068H04L5/0053H04W72/082H04B7/026H04B7/0854H04L2025/03426H04B7/0671H04L25/03343H04B17/345H04W72/541
Inventor 示泽寿之野上智造山田升平
Owner SHARP KK