Beacon management for network assisted device-to-device (d2d) communication

A device communication and beacon technology, which is applied in network data management, connection management, network topology and other directions, and can solve problems such as cumbersome devices, increased system interference levels, and conflicts.

Active Publication Date: 2015-01-14
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] However, transmitting acknowledgments in an uncoordinated manner (before establishing a D2D connection) risks collisions and/or may increase interference levels in the system
[0017] Furthermore, the all

Method used

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  • Beacon management for network assisted device-to-device (d2d) communication
  • Beacon management for network assisted device-to-device (d2d) communication
  • Beacon management for network assisted device-to-device (d2d) communication

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Embodiment Construction

[0090] Note that D2D protocols / communications / connections when used herein refer to any known or future applicable 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 network nodes. D2D communication can be TDD or FDD. Network nodes may impose restrictions on D2D communications (especially when using cellular and / or licensed spectrum), such as maximum allowed transmit power and / or power control of power control commands.

[0091] Similarly, note that cellular protocols / communications / connections when used herein refer to any known or future applicable cellular applications. Examples include, but are not limited to, 3GPP cellular standards (eg, GSM, WCDMA, TD-SCDMA, LTE), WLAN, and even device-to-device networks. A network node may comprise, for example, a base station, No...

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PUM

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Abstract

A method of a wireless communication device adapted to perform device-to-device communication is disclosed. The method comprises transmitting an indication of device-to-device communication capability to a network node, receiving one or more beacon parameters allocated to one or more second wireless communication devices adapted to perform device-to-device communication, monitoring device-to-device communication beacon signaling based on the received beacon parameters, and performing at least one radio operation task based on measurements of the monitored device-to-device communication beacon signaling. The at least one radio operation task may comprise using the measurements of the monitored device-to-device communication beacon signaling to select or re-select one of the one or more second wireless communication devices for device-to-device communication, and/or transmitting a beacon measurement report to the network node based on the monitored device-to-device communication beacon signaling. Another method of a wireless communication device comprises receiving one or more beacon parameters allocated to the wireless communication device from a network node, transmitting device-to-device communication beacon signaling based on the received beacon parameters, and receiving a beacon measurement report from the network node indicating detection of the transmitted beacon by one or more second wireless communication devices. Corresponding methods of a network node are also disclosed as well as corresponding arrangements, wireless communication devices and network nodes.

Description

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

Claims

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Application Information

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IPC IPC(8): H04W8/00H04W84/18H04W88/06H04W76/02
CPCH04W76/02H04W76/023H04W88/06H04W8/005H04W84/18H04W76/14H04W76/10
Inventor B.林多夫G.福多尔L.维赫斯森M.卡兹米
Owner TELEFON AB LM ERICSSON (PUBL)
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