Handoff – A Significant Feature of Mobile Communication



Introduction:

Mobility is the most important feature of a wireless cellular communication system. Usually, continuous service is achieved by supporting handoff (or handover) from one cell to another. Handoff is the process of changing the channel (frequency, time slot, spreading code, or combination of them) associated with the current connection while a call is in progress.

Soft Handoff in Mobile Communication

Soft Handoff in Mobile Communication

In first-generation cellular systems like the Advanced Mobile Phone System (AMPS), handoffs were relatively simple. Second-generation cellular systems like the Global System for Mobile Communications (GSM) and the Personal Access Communication System (PACS) are superior to first-generation ones in many ways, including the handoff algorithms used. More sophisticated signal processing and handoff decision procedures have been incorporated in these systems. The control/decision structures have been improved so that in progressing from network-controlled toward mobile assisted handoffs (MAHO) or mobile-controlled handoffs (MCHO), the handoff decision delay has been substantially reduced. [Read more...]


Nepal Telecom slashes charges, comes with a little relief



Finally Nepal Telecom (NT) has slashed some of the subscription charges and calling rates on its major services including 3G, GSM, CDMA and PSTN International (ISDN) calling rates. However, the lowered rates are not much likely what the subscribers expected from the country’s largest telecommunication company.

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Mobile Operators in Nepal : FAQs

Here are few Frequently Asked Questions about Mobile Operators in Nepal. Most of these are answered by independent persons working on Techno-Telecom area, even inside the Telecom offices.

Frequently asked questions, FAQs, Questions and Answers Q&N

QnA about Nepalese Telco

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Nepal Telecom launches Mobile Service at the top of Mount Everest

Nepal Telecom (NT) has finally launches the Mobile telephony service at the top of the Mount Everest – the highest peak (8848 m) in the world. It was in November 2009, Cell phone service atop Mount Everest soon – was published after NT made it on news. Now mountaineers can  talk to the  world using GSM mobile service from Telecom. [Read more...]

Competitors may outshine NT soon, says Minister Kathmandu.

Minister for Information and Communications, Shankar Pokharel, called attention to Nepal Telecom (NT)’s technological backwardness, in a programme organized to celebrate the 20th anniversary of Telecom Employee Association of Nepal (TEAN).
He stressed that NT has a great scope for the incorporation of value added services. “However, NTC does not explore the possibilities but waits for some outside sources to come up with the proposal, as a result, it lags behind the competitors,” he complained, adding that the NT is slow in terms of upgrading technology, which he said is rapidly changing. “Due to different contractual difficulties as well as other similar hitches, NT is using old technology in spite of being capable.”
He also urged NT to address the gap between demand and supply of its services. “Consumers will not wait for too long and they will switch on to available alternatives,” he cautioned.
He said that he had noticed a tendency in NT that even after providing the training, most employees are not assigned the job they are trained for.
He appreciated the way NT is mobilizing its surplus fund by investment in different national projects. He commended it as a key step toward ensuring the capital protection.
Regarding management and employee relationship, he advised, “Management and employee need to generate a better working relation between themselves and the workers.” In the ceremony, most of the members of employee associations complained about the lack of co-operation be tween management and the workers. They also pointed that there need to be a supervising authority that needs to regulate the purchase of equipment and machineries so that NT can provide high quality services to its customers.
Till date, NT has a total of around 50 lakh customers -the largest customer base. The total teledensity of Nepal is 26.71 per cent of which NT alone accounts for 17.56 per cent. The company during the last fiscal year has posted a total of Rs 10.17 billion profit.
Meantime, NT had extended the discounts of fered to the end of Baisakh.
Earlier on its anniversary, NT had announced certain discounts in its services from the beginning of Falgun till the end of Chaitra.
The discounts offered have no connecting charge for PSTN service and no fine for pending bill payment. The SMS service charge of CDMA and GSM within the network will be subjected to 50 per cent discount, Data/ Video Streaming Charges of GSM 2G and 3G services will cost 1 paisa per kilobyte and EVDO services and CDMA Mobile’s PDSN will cost 15 paisa per 100 kilobyte.

Minister for Information and Communications, Shankar Pokharel, called attention to Nepal Telecom (NT)’s technological backwardness, in a programme organised to celebrate the 20th anniversary of Telecom Employee Association of Nepal (TEAN).He stressed that NT has a great scope for the incorporation of value added services. “However, NTC does not explore the possibilities but waits for some outside sources to come up with the proposal, as a result, it lags behind the competitors,” he complained, adding that the NT is slow in terms of upgrading technology, which he said is rapidly changing. “Due to different contractual difficulties as well as other similar hitches, NT is using old technology in spite of being capable.”
He also urged NT to address the gap between demand and supply of its services. “Consumers will not wait for too long and they will switch on to available alternatives,” he cautioned.
He said that he had noticed a tendency in NT that even after providing the training, most employees are not assigned the job they are trained for.
He appreciated the way NT is mobilising its surplus fund by investment in different national projects. He commended it as a key step toward ensuring the capital protection.
Regarding management and employee relationship, he advised, “Management and employee need to generate a better working relation between themselves and the workers.” In the ceremony, most of the members of employee associations complained about the lack of co-operation be tween management and the workers. They also pointed that there need to be a supervising authority that needs to regulate the purchase of equipment and machineries so that NT can provide high quality services to its customers.
Till date, NT has a total of around 50 lakh customers -the largest customer base. The total teledensity of Nepal is 26.71 per cent of which NT alone accounts for 17.56 per cent. The company during the last fiscal year has posted a total of Rs 10.17 billion profit.
Meantime, NT had extended the discounts of fered to the end of Baisakh.
Earlier on its anniversary, NT had announced certain discounts in its services from the beginning of Falgun till the end of Chaitra.
The discounts offered have no connecting charge for PSTN service and no fine for pending bill payment. The SMS service charge of CDMA and GSM within the network will be subjected to 50 per cent discount, Data/ Video Streaming Charges of GSM 2G and 3G services will cost 1 paisa per kilobyte and EVDO services and CDMA Mobile’s PDSN will cost 15 paisa per 100 kilobyte.