Result of Connection Test between IP-PBX/Business phones and sXGP terminals in FY 2019

XGP Forum (office located in Tokyo, Japan. Chairperson: Yoichi Maeda) has revised "Guideline for Connection Test of sXGP system" and added a test environment using a combination of multi-vendor sXGP equipment in the conncetion test between IP-PBX/Business phone and sXGP terminals. The connection test met with a good result.

XGP Forum has been standardizing a new TD-LTE-based wireless technology, license-free ”sXGP system”, as a radio station which uses 1.9GHz band and vigorously participating in the review meeting of technical requirements set up by Information and Communications Council(“ICC”) under MIC.

Reference: TD-LTE scheme innovates on 1.9GHz Digital Cordless Telephone system

Then, in order to promote the deployment of this method, we informed of the following initiatives.

Reference: Efforts to spread and promote sXGP

In response to ICC’s preliminary answer on March 31, 2017 and amendment enforcement of ministerial order for sXGP systems on October 1, as well as the issuance of standard specification by ARIB, XGP Forum issued test guidelines. Based on the guideline, we have conducted tests continuously with participating companies in this Forum since FY 2018 and have achieved good results.

"Reference provision"

・Ordinance on Radio Equipment (MIC No.60 of 2018) Article 49-8-2-3

　(Radio equipment of Radio Station used for Time Division・ OFDMA Digital Cordless System)

・ARIB Standard STD-T118 “Radio equipment used for OFDMA/TDMA TDD for digital cordless telephone"

Reference

Result of Connection Test between IP-PBX and sXGP terminals on March 23, 2018

Result of Connection Test between IP-PBX/Business phones and sXGP terminals on February 14, 2019

This time, we revised the guideline to add test items related to RFI(Radio Frequency Interference) with other wireless system (PHS system).

The test was co-hosted by HATS Forum (Secretariat: Communications and Information Network Association of Japan (CIAJ), Chairman: Tadao SAITO, Professor Emeritus of the University of Tokyo) and over successfully.

1. Test period:

　　(1) Connection test of multi-vendors` sXGP compliance equipment: September 24, 2019

　　(1) RFI test of sXGP System with other wireless system(PHS System): January 20~30, 2020

2．Participants(Random order)

　　Accuver Co., Ltd（Accuver）

　　IWATSU ELECTRIC CO., LTD

　　NEC Platforms, Ltd

　　Oki Electric Industry Co., Ltd.（OKI）

　　Quortus Ltd,（Quortus）

　　NAKAYO, Ltd

　　Baicells Technologies Co., Ltd.（Baicells）

　　Hitachi Information & Telecommunication Engineering

　　BB Backbone Corporation（BBB）

　　FUJITSU LIMITED

3. Test site:

　　1A Meeting room, ARIB

4. Test organization

XGP Forum(TWG-AdHoc 22 SWG for sXGP-AdHoc TG for interconnectivity) recruited participant corporations and implemented the test.

5. Test Method

Connection test between IP-PBX/Business phones and sXGP terminals was implemented in accordance with "IP-PBX - sXGP Inter-terminal Connection Test Guideline(Version 3)" and "PBX Telecom Server Inter Connection Test Guideline for sXGP Protocol Specification of Terminal Access (HATS-P-104-V3.0)" based on the former.

＜System Configuration : Connection test of multi-vendors` sXGP compliance equipment＞

6. Test Result

（１）Result of connection test with another sXGP compliance equipment

As mentioned below, 8 items(including some option items) were tested with a combination of two models of IP-PBXs from two vendors and one newly added sXGP equipment (EPC, AP) vendor and all of them passed the test.

＜Equipment manufacturer＞

Equipment manufacturer	Device Name
Baicells Technologies Co., Ltd.	EPC: BaiEPC
Baicells Technologies Co., Ltd.	AP : pBS1109

IP-PBX Manufacturer	Device name
NEC Platforms, Ltd	UNIVERGE SV9500
Oki Electric Industry Co., Ltd.（OKI）	DISCOVERY neo

＜Test Result＞

IP-PBX Manufacturer	Incoming & Outgoing of Extension	Transfer	Terminal Move			Sub-normal processing at false mode※2
IP-PBX Manufacturer	Incoming & Outgoing of Extension	Transfer	Handover ※1	Out-cell movement※2	In-cell return ※2	AP	EPC	IP-PBX
NEC Platforms, Ltd	〇	〇	〇	〇	〇	〇	〇	〇
OKI	〇	〇	〇	〇	〇	〇	〇	〇

※1：Confirmation of the handover of one ongoing voice call during the sXGP terminal movement between different APs.

※2：Sub-normal: Confirmation of AP fault, terminal release by EPC / PBX reset

（2）RFI test of sXGP System with PHS System

As mentioned below, 6 items of RFI test were tested with a combination of 6 types of IP-PBXes/business phones from 6 companies together with sXGP compliant equipment and another wireless system(PHS system)all of them passed the test. HATS Conference issued "Certificate of Qualification" to the companies that also members of HATS among them.

＜Equipment manufacturer＞

sXGP equipment vendor	Device Name
Quortus Ltd,	EPC: Q-Core
Accuver Co., Ltd	AP: sXGP AP SC-120J

IP－PBX/Business Phone Manufacturer	Device Name
IWATSU ELECTRIC CO., LTD	Frespec
NEC Platforms, Ltd	UNIVERGE SV9500
Oki Electric Industry Co., Ltd.（OKI）	DISCOVERY neo
NAKAYO, Ltd	NYC-Si
Hitachi Information & Telecommunication Engineering	NETTOWER MX-01
FUJITSU LIMITED	LEGEND-V S100

＜Test Result＞

IP－PBX/Business Phone Manufacturer	RFI of PHS during the call of sXGP terminal	Incoming & Outgoing of PHS extension by carriersense of sXGP
IWATSU ELECTRIC	〇	〇
NEC Platforms	〇	〇
OKI	〇	〇
NAKAYO	〇	〇
Hitachi Information & Telecommunication Engineering	〇	〇
FUJITSU	〇	〇

7. Future Plan
The Access Test is going to be implemented continuously next year as well. We aim to supply products with high convenience for users.

Reference（Japanese only)：　

一般社団法人情報通信ネットワーク産業協会「IP-PBX／ビジネスホン – sXGP端末間接続試験」実施結果について（第3回）（2020年4月1日）