Mobile Broadband Service » CDMA1x

Hybrid modem technology: Bakrie Connectivity AHA modem

engineer — Mon, 28 Jun 2010 00:33:48 +0000

Mobile broadband providers which already upgraded their network platform will still keep old network and provided the old service to their subscribers. For example CDMA mobile providers which already upgrade to the EVDO Rev A or EVDO Rev B or GSM network platform to 3G or 4G. They will serve at least 2 wireless internet service, CDMA 1x and EVDO service. The main reason due to it is need high cost investment to replace traditional network (CDMA or GSM) to the new one (CDMA Rev A or CDMA Rev B). Therefore they will provide hybrid modem technology to support both network platforms to their wireless internet subscribers.

Bakrie Connectivity with their new mobile broadband AHA is also doing the same to provide hybrid modem technology. With hybrid modem technology, Bakrie Connectivity subscribers will still access wireless internet service on CDMA 1x while they can not get EVDO signal on particular area. Basically hybrid modem technology permits us to select what network platform available on particular area. Hybrid modem technology by default will select the best network platform in this case CDMA Rev A or CDMA Rev B. Once its area can not covered by those signal but CDMA 1x is available then your internet connection will be served by CDMA1x platform.

Hybrid modem technology allows us to keep connected with any available network. There are also modem technology which built with single technology platform either CDMA or EVDO platform. In such modem, once an area get no EVDO signal then a modem technology with CDMA platform is useless and vice versa. Mobile broadband providers for some reasons such as modem tariff. Bakrie Connectivity with their mobile broadband service called AHA provided such modem technology as well

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Smart Telecom mobile Broadband service

engineer — Sun, 03 Jan 2010 16:50:49 +0000

Revolution to the telecommunication technology must be taken by each of telecommunication companies to meet subscriber requirement. Data service infrastructure is one of the network elements which should be upgrade to support the latest service of mobile broadband internet service or high speed internet access. Telecommunication companies with CDMA platform should migrate to EVDO technology to replace CDMA1x 2000 while they want to serve broadband internet service to their subscribers. Smart Telecom with their broadband internet service is one of the service which aware regarding to the latest technology
The same evolution is done by Smart Telecom as one of the telecommunication companies with CDMA platform in Indonesia. Smart Telecom mobile broadband internet service is high speed internet access provided by Smart Telecom based on EVDO technology. Smart Telecom Mobile broadband internet service is using wireless CDMA (Code Division Multiple Access) modem such as Axesstel MV140B and ZTE USB Modem AC2728 which support to the EVDO Rev-A technology

The speed capability of Smart Telecom mobile broadband internet service is very reliable because it has a dedicated connection for data channel, which is separate from the voice connection. The access speed to download through Smart Telecom mobile broadband reaches 3.1 Mbps and uploads speeds up to 1.8 Mbps.

The evolution to the latest technology is very critical to support telecommunication service. The same way is also happening to another telecommunication companies with GSM platform and migrate to 3G network such as Telkomsel, XL, and Indosat. Telecommunication companies with the old technology (CDMA platform) such as Bakrie Telecom and Telkom if they did not decide to migrate to the latest one to support high speed internet service will be left by their subscribers

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Failure points of wireless internet services

engineer — Fri, 04 Sep 2009 05:55:18 +0000

Wireless or mobile broadband internet service such as CDMA1x, GPRS, 3G or EVDO will have unstable connection. More subscribers they have, more often they will experience an unstable connection. The root cause of this problem could be anywhere depends on the capacity and occupancy of the network infrastructures. Generally, the point where wireless or mobile broadband internet service gets unstable connection could be;

Base Transceiver Station (BTS) capacity
Link utilization
International bandwidth capacity

While subscriber makes a data service on mobile broadband internet service session by dialing to the particular short code (for example #456) from their mobile phone or modem, BTS will allocate some resources for this session. Number of resources needed by data service session is bigger than voice or messaging (SMS) service. It needs around four times of voice resource. It means that if voice needs 64 kbps to make sure the calling session running well, data service (wireless or mobile broadband internet services) need 4×64 kbps. Meanwhile each BTS has limited capacity. Therefore, Telecommunication Company which has limited carrier frequency will assign first priority to voice and messaging (SMS) services rather than data service (wireless or mobile broadband internet services). There are many ways to resolve the capacity issue on the BTS side;

Assigning dedicated RF channel frequency for data service (wireless or mobile broadband internet services)
Different frequency between voice and data services (wireless or mobile broadband internet services)
Adding RF capacity by install more BTS

Traffic which requested by subscribers is huge internet traffic so then need high link capacity to carry out them. It different with voice and messaging (SMS) services which has certainty capacity then Telecommunication Company can predict how much link capacity to carry out this service. Meanwhile data service (wireless internet services) will has unpredictable traffic more often they will has huge traffic during peak hour. As the result, utilization link to carry out traffic from subscriber to Public Data Serving Node (PDSN) – suppose on the CDMA platform – will always getting saturated. Telecommunication Company will take some action to resolve this issue e.g.

1. Adding E1 capacity or

2. Migrate to optical network

International Bandwidth very expensive and usually Telecommunication Company will consider many times to add more bandwidth capacity. It could be that no issue found on the RF capacity and the link network but more often they will experience lack of international bandwidth capacity especially during peak hour while many subscribers trying to access internet on mobile broadband internet service