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Method and arrangement for d2d discovery

A technology of user equipment and geographic location, applied in the field of D2D discovery and placement

Active Publication Date: 2019-04-05
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cells are served by base stations

Method used

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  • Method and arrangement for d2d discovery
  • Method and arrangement for d2d discovery
  • Method and arrangement for d2d discovery

Examples

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Embodiment Construction

[0051] Embodiments herein mainly relate to a D2D peer-to-peer discovery scheme in cellular based networks.

[0052] The concept of the embodiments herein is a combined location-based peer discovery (LPD) and autonomous peer discovery (APD) type peer discovery process, which overcomes the shortcomings of the prior art and can be divided into the following concepts. According to embodiments herein, the cell coverage area is divided into small areas. Collisions can be avoided between areas that are close to each other, while reuse of PD resources can be allowed between areas that are far away from each other. As a complement, reactivation programs can reduce intraregional conflict.

[0053] figure 1 A cellular communication network 100 is depicted in which embodiments herein may be implemented. The cellular communication network 100 is a wireless communication network such as LTE, WCDMA, GSM network, any 3GPP cellular network, Wimax or any cellular network or system.

[0054]...

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Abstract

According to a first aspect of the embodiments herein, the object is achieved by a method in a base station with respect to handling a procedure for discovering candidate user equipments for device-to-device D2D communication in a cell. A cell is served by a base station. The base station divides (200) the cell into regions. The base station then assigns (201) to each of the plurality of regions channel resources for use in that region. The channel resources are used to send beacon signals during the process of discovering D2D candidate user equipments.

Description

technical field [0001] The embodiments herein relate to a base station, a first user equipment, a second user equipment and methods therein. Specifically, it involves handling the process of discovering candidate user equipments for device-to-device (D2D) communication in a cell. Background technique [0002] A communication device, such as a terminal, is also eg called User Equipment (UE), mobile terminal, wireless terminal and / or mobile station. Terminals are capable of communicating wirelessly in a cellular communication network or wireless communication system, also sometimes referred to as a cellular radio system or cellular network. Communications may be performed between two terminals, between a terminal and an ordinary telephone and / or between a terminal and a server, for example via a radio access network (RAN) and possibly one or more core networks comprised in a cellular communication network . [0003] A terminal may also be called a mobile phone, a cellular p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/00H04W16/30H04W76/14H04W4/02H04W4/029H04W72/54
CPCH04W8/005H04W16/30H04W76/14H04W4/02H04W4/029H04W72/04
Inventor 卢前溪G·弗多缪庆育
Owner TELEFON AB LM ERICSSON (PUBL)