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User device and transmission method

A technology of user devices and sending units, which is applied in the directions of multiple use of transmission paths, network traffic/resource management, power management, etc., and can solve problems such as increased propagation loss

Inactive Publication Date: 2019-04-02
NTT DOCOMO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In particular, the propagation loss increases in the high frequency band, so in order to compensate for it, the application of beamforming with a narrow beam width is studied

Method used

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  • User device and transmission method
  • User device and transmission method
  • User device and transmission method

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Embodiment Construction

[0025] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the embodiment described below is merely an example, and the embodiment to which the present invention is applied is not limited to the following embodiment. For example, the radio communication system according to this embodiment assumes a system based on an LTE scheme, but the present invention is not limited to LTE and can be applied to other schemes. In addition, in this specification and claims, "LTE" includes not only the communication method supporting Release 8 or 9 of 3GPP, but also the system supporting Release 10, 11, 12, 13 or Release 14 of 3GPP, or the communication method of 5G. used in a broad sense. In the following description, "resource" is used to mean a radio resource.

[0026]

[0027] figure 1 It is a diagram showing a configuration example of a radio communication system according to an embodiment. Such as figure 1 As shown, the ...

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Abstract

Provided is a user device in a wireless communication system including a base station and the user device, the user device having: an acceptance unit for accepting, from the base station, the allocation of a wireless resource used in the transmission of an uplink reference signal; a measurement unit for measuring the reception quality of a downlink signal transmitted from the base station; and a transmission unit for starting transmission of the uplink reference signal using the wireless resource allocated from the base station when the reception quality measured by the measurement unit satisfies a prescribed condition, and stopping transmission of the uplink reference signal when the reception quality measured by the measurement unit does not satisfy the prescribed condition.

Description

technical field [0001] The present invention relates to a user device and a transmission method. Background technique [0002] In LTE (Long Term Evolution), in order to further increase the system capacity, further increase the data transmission speed, further reduce the delay in the wireless section, etc., the so-called 5G is being developed. Research on wireless communication methods. In 5G, in order to satisfy the requirement of achieving a throughput of 10 Gbps or higher and keeping the delay in the wireless section to 1 ms or less, various wireless technologies are being researched. Since there is a high possibility of adopting a wireless technology different from LTE in 5G, in 3GPP, the wireless network supporting 5G is called a new wireless network (NewRAT: New Radio Access Network), and the wireless network supporting LTE is compared. distinguish. [0003] It is assumed that 5G uses a wide range of frequencies from the same low frequency band as LTE to a higher fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W28/10H04W24/10H04W52/02H04W72/04H04W72/12H04W72/54
CPCH04W28/10H04W52/02H04W36/0085H04L5/006H04L5/0048H04L5/0085H04L5/0094H04L5/00H04W36/0088Y02D30/70H04W72/0446H04W72/0453H04W72/0466H04W72/23H04W72/542H04W24/10H04L5/0051H04W88/02
Inventor 高桥秀明内野彻W.A.哈普萨里A.乌美什安部田贞行
Owner NTT DOCOMO INC