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A method performed in a radio node and the radio node

A radio and node technology, applied in wireless communication, electrical components, connection management, etc., can solve the problems that beacon signals cannot be detected, D2D discovery is difficult, and impossible to achieve

Active Publication Date: 2019-04-26
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technique can result in multiple adjacent devices using conflicting PDRs
Such beacon signal collisions prevent the beacon signal from being detected, or decoded by the receiving device
Therefore, D2D discovery with the aid of beacon signals becomes difficult or even impossible
[0008] A second prior art uses greedy or opportunistic selection of so-called PDRs

Method used

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  • A method performed in a radio node and the radio node
  • A method performed in a radio node and the radio node
  • A method performed in a radio node and the radio node

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Embodiment Construction

[0023] Where appropriate, in the description below, like reference numerals are used to refer to like elements, nodes, unit modules, parts, items or features. In the figures, features that appear in some embodiments are indicated by dashed lines.

[0024] figure 1 An exemplary ad-hoc radio communication network 100 is shown in which embodiments herein may be implemented. In this example, the radio communication network 100 is a Long Term Evolution (LTE) system. In other examples, the radio communication network may be any 3rd Generation Partnership Project (3GPP) cellular communication system, such as a Wideband Code Division Multiple Access (WCDMA) network, a Global System for Mobile Communications (GSM network), etc., or any evolution thereof . The ad-hoc radio communication network 100 may or may not be within the coverage of a radio network node (not shown). A radio network node may be a radio base station, eNB, radio network controller, base station controller, etc. ...

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PUM

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Abstract

A method and a radio node (110) for managing resources for device-to-device discovery in an ad-hoc radio communication network are disclosed. The radio node (110) measures received power on a plurality of resources to obtain a value of the received power. The value of received power includes a respective value of received power for each of the plurality of resources. The received power includes the power of any existing beacon signals received from one or more of the other radio nodes (120, 130, 140). A radio node (110) selects at least one resource from a plurality of resources. The respective values ​​of received power for the selected at least one resource are among the obtained minimum values ​​of the respective values ​​of received power. The radio node (110) broadcasts a beacon signal on the selected at least one resource to other radio nodes (120, 130, 140), wherein the beacon signal includes one or more of the values ​​of received power.

Description

technical field [0001] Embodiments herein relate to wireless communication systems, such as telecommunication systems. A method and a radio node for managing resources for device-to-device discovery in an ad-hoc radio communication network are disclosed. Background technique [0002] In the field of telecommunication systems, techniques for creating so-called ad-hoc networks have been developed, for example to simplify network deployment and to provide a more dynamic network environment. An ad-hoc network includes a collection of network nodes, such as cellular telephones. Network nodes may join or leave an ad-hoc network for various reasons, such as mobility, coverage conditions, and so on. In order for a network node to join the ad-hoc network, it is required that the joining network node (that is, the network node wishing to join the ad-hoc network) be able to discover the ad-hoc network. This means that an ad-hoc network includes network nodes that have joined the ad-...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W74/08H04W8/00H04W72/54
CPCH04W8/005H04W76/14H04W4/06H04W72/542H04W72/046H04W84/18
Inventor 纳迪亚·伯拉米盖博·福多
Owner TELEFON AB LM ERICSSON (PUBL)
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