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Method and apparatus for interference minimization in direct device-to-device communication

A device-to-device, direct technology, applied in wireless communication, connection management, electrical components, etc., can solve problems such as strong inter-cell interference and uplink interference

Active Publication Date: 2018-06-12
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Similarly, an uplink transmission from the wireless device 22 to a neighboring base station 26 in a neighboring cell 24 using the same UL resources results in a strong inter-cell transmission to the wireless device 18 when a transmission is received from the wireless device 16 over the D2D communication link. interference
Furthermore, although not shown, transmissions between wireless devices 16 and 18 over the D2D communication link using DL resources may result in transmissions from other wireless devices to base station 12 in cell 14 and / or to base stations in neighboring cells ( Interference such as the uplink of neighboring base stations 26 in neighboring cells 24)
[0007] Thus, D2D communication using the same resources for the downlink and uplink in the cellular communication network 10 leads to new interference scenarios unimaginable in conventional cellular communication networks

Method used

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  • Method and apparatus for interference minimization in direct device-to-device communication
  • Method and apparatus for interference minimization in direct device-to-device communication
  • Method and apparatus for interference minimization in direct device-to-device communication

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Embodiment Construction

[0030] The embodiments set forth below represent the necessary information to enable one skilled in the art to practice the embodiments and illustrate the best mode of carrying out the embodiments. Upon reading the following description in light of the accompanying drawing figures, those skilled in the art will understand the concepts of the disclosure and will recognize applications of these concepts not specifically addressed herein. It should be understood that these concepts and applications fall within the scope of the disclosure and the appended claims.

[0031] Systems and methods for selecting resources for direct device-to-device (D2D) communication in a cellular communication network are disclosed. Preferably, the resources used for direct D2D communication are selected to minimize or at least substantially reduce interference caused by direct D2D communication in the cellular communication network. In general, uplink (UL) resources or downlink (DL) resources of the...

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Abstract

Systems and methods for selecting resources for direct device-to-device (D2D) communication in a cellular communication network are disclosed. Preferably, the resources used for direct D2D communication are selected to minimize or at least substantially reduce interference caused by direct D2D communication in the cellular communication network. In general, uplink resources or downlink resources of the cellular communication network are selected for the direct D2D communication link between the first wireless device and the second wireless device in order to minimize or at least substantially reduce the impact on the Interference caused by third wireless devices using the same uplink and downlink resources in the same and / or neighboring cells of the cellular communication network.

Description

technical field [0001] The present disclosure relates to direct device-to-device communication in a cellular communication network, and more particularly, to minimizing interference caused by direct device-to-device communication in a cellular communication network. Background technique [0002] Network-assisted direct device-to-device (D2D) communication is expected to be a key feature supported by next-generation cellular communication networks. figure 1 A cellular communication network 10 enabling direct D2D communication is illustrated. As illustrated, the cellular communication network 10 includes a base station (BS) 12 serving a corresponding cell 14 of the cellular communication network 10 . Although only one base station 12 is illustrated, the cellular communication network 10 includes a plurality of base stations 12 serving corresponding cells 14 . In this example, wireless devices (WDs) 16 , 18 , and 20 are located within cell 14 . Wireless devices 16 and 18 are...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/08H04W76/14H04W72/54
CPCH04W76/15H04W72/541H04W76/14H04W72/54
Inventor K.迪谋G.富多尔T.马希尔F.R.P.卡瓦尔肯蒂
Owner TELEFON AB LM ERICSSON (PUBL)