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Interference management for network assisted device-to-device communication

A device-to-device and interference management technology, applied in network traffic/resource management, machine-to-machine/machine-type communication services, connection management, etc., can solve problems such as limitations

Inactive Publication Date: 2015-03-18
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Thus, the potential to significantly increase the total traffic per area using D2D communication may not be as high as expected at all
Furthermore, when there are too many devices in the same area, there may be severe congestion, limiting the possibility to provide an acceptable quality of service

Method used

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  • Interference management for network assisted device-to-device communication
  • Interference management for network assisted device-to-device communication
  • Interference management for network assisted device-to-device communication

Examples

Experimental program
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Embodiment Construction

[0054] It is to be noted that D2D protocols / communications / connections when used herein refer to any known or future suitable D2D applications. Examples include, but are not limited to, Bluetooth, WLAN (WIFI Direct), FlashlinQ, and D2D using cellular spectrum. For example, network-assisted D2D communication may use uplink and / or downlink resources of cellular spectrum allocated by a network node. Alternatively, network-assisted D2D communication may use unlicensed spectrum, such as the ISM band at 2.45 GHz. D2D communication can be TDD or FDD. A network node may impose constraints on D2D communications (especially when using cellular and / or licensed spectrum), eg power control, such as maximum allowed transmit power and / or power control commands.

[0055] Similarly, it is noted that cellular protocols / communications / connections when used herein refer to any known or future appropriate cellular applications. Examples include, but are not limited to, 3GPP cellular standards (...

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PUM

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Abstract

A method of a first wireless communication device adapted to perform device-to-device communication with a third device is disclosed, wherein a second device causes interference to the device-to-device communication. The method comprises determining an interference criterion associated with the second wireless communication device, and transmitting an interference management request message related to the interference criterion to a network node. A corresponding method of a network node adapted to provide assistance of device-to-device communication is also disclosed. The method comprises receiving the interference management request message related to the interference criterion from the first wireless communication device, and transmitting an interference control message to at least one of the first wireless communication device, the second wireless communication device, and the third wireless communication device. Corresponding computer program product, arrangements, wireless communication device and network node are also disclosed.

Description

technical field [0001] The present invention generally relates to the field of network-assisted device-to-device communications. More specifically, it concerns interference management for such communications. Background technique [0002] Device-to-device (D2D) communication refers to direct communication between devices. In D2D communication, data to be transferred from a first device to a second device is generally not relayed via any cellular network. Some examples of prior art D2D communication are Bluetooth communication, FlashlinQ communication and WLAN (eg IEEE 802.11) communication (eg WIFI Direct). [0003] Device-to-device communication may be applied in various situations. One situation is when a cellular radio access network exists and is able to set up a cellular connection between two devices. In such situations, D2D communication may be complementary to cellular communication. [0004] There may be situations when D2D communication provides better perform...

Claims

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Application Information

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IPC IPC(8): H04W28/04
CPCH04W72/082H04W76/023H04W4/70H04W76/14H04W72/541H04W72/20H04W24/02
Inventor L.维赫姆斯森G.福多尔B.林多夫
Owner TELEFON AB LM ERICSSON (PUBL)