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Explicit spatial replay protection

A location and terminal device technology, applied in location-based services, network traffic/resource management, electrical components, etc.

Active Publication Date: 2022-03-15
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] One problem with the current protocol is that an attacker may be able to listen on the air interface at the first location, collect the discovery messages broadcast by the first UE, and broadcast the discovery messages from the second location

Method used

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  • Explicit spatial replay protection
  • Explicit spatial replay protection
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Embodiment Construction

[0033] Specific details, such as specific examples, are set forth below for purposes of explanation and not limitation. It will be understood, however, by those skilled in the art that other embodiments may be employed without these specific details. In some instances, detailed descriptions of well-known methods, nodes, interfaces, circuits and devices are omitted so as not to obscure the description with unnecessary detail. Those skilled in the art will appreciate that the described functions may be implemented using hardware circuitry (e.g., analog and / or discrete logic gates interconnected to perform dedicated functions, ASICs, PLAs, etc.) and / or using software programs and data, in conjunction with specially adapted Based on the execution of such programs, one or more digital microprocessors or general purpose computers carrying out the processes disclosed herein are implemented in one or more nodes. Nodes that communicate using the air interface also have suitable radio ...

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Abstract

A terminal device such as a 3GPP Proximity Service (ProSe) enabled user equipment obtains imprecise location information about the location of the terminal device and transmits a proximity service discovery message, wherein the discovery message includes the imprecise location information. Again the second terminal device, for example a 3GPP Proximity Service (ProSe) enabled user equipment, receives the Proximity Service Discovery message containing the location information. The second terminal device obtains location information related to its location, and calculates a distance from the location indicated by the location information in the received discovery message to the location of the second terminal device. The second terminal reacts to the received discovery message only if the calculated distance is smaller than the predetermined distance.

Description

technical field [0001] The invention relates to methods of operation of terminal devices and network nodes in a cellular communication network. Background technique [0002] Proximity Service (ProSe) is a new feature of 3GPP communication networks that provides services for ProSe-enabled user equipment devices (UEs) that are in close proximity to each other. These characteristics are standardized in TS 22.278 v13.0.0 and TS 23.303 v13.0.0. [0003] The ProSe feature consists of ProSe Discovery and ProSe Direct Communication. ProSe discovery identifies ProSe-enabled UEs that are in proximity to each other. ProSe direct communication enables establishment of a communication path between ProSe-enabled UEs in direct communication range. [0004] One problem with the current protocol is that an attacker may be able to listen on the air interface at the first location, collect the discovery messages broadcast by the first UE, and broadcast the discovery messages from the second...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/51H04W4/021H04W4/029H04W28/02H04W4/02
CPCH04W4/023H04W4/025H04W12/12H04W12/02H04W12/106H04L67/51H04W88/04
Inventor M.维夫韦松N.本亨达K.普费弗V.莱托弗塔V.托尔维南S.苏尔塔纳
Owner TELEFON AB LM ERICSSON (PUBL)