LTE: SK Telecom launched HD Voice call service over LTE.

WorldWide Tech & Science. Francisco De Jesùs.

LTE: SK Telecom launched HD Voice call service over LTE.

South Korean service provider SK Telecom has launched HD voice call service over LTE. According to the company, HD voice call connection time is less than 0.25 to 2.5 seconds, 2 to 20 times shorter than 3G voice calls that require an average of 5 seconds to connect a call.

SK Telecom claims to be first to offer high definition voice call service over LTE that can dramatically push up audio quality. HD Voice uses Adapted Multi-Rate Wide Band (AMR-WB) codec, which offers much upgraded 3G speech coding, and 23.85 Kbps transmission bandwidth, 2.2 times wider than that of 3G voice call, thereby transmitting the previously-inaudible low and high sound waves, and improving voice quality by 40% compared to that of 3G. HD Voice (AMR-WB) provides a much richer, clearer and more natural speech quality due to a wider speech bandwidth of 50–7000 Hz compared to 3G voice call service that is optimized for only 300–2400 Hz voice band.

Operator will offer HD Voice at same rates (KRW 1.8 per second) as that of 3G under pay-per-second billing scheme and allow users to make/receive HD Voice calls without going through a subscription process, thus enabling them to conveniently experience the high-quality, premium service with no additional cost burden.

The company will begin selling Galaxy S3 LTE embedded with HD Voice feature on August 8 and plans to offer firmware upgrades for existing users of Galaxy S3 LTE within this month. In addition SK Telecom plans to embed HD Voice as a basic feature in most of its LTE smartphones to be released in the future.

As an All IP-based premium service that provides high-quality voice, video and data in an integrated manner unlike traditional simple voice calls, HD Voice can be expanded to many new and value-added services. For instance, it offers both voice and video services characterized by seamless in-call voice-to-video call switching and content sharing by linking to RCS services.

SK Telecom completed nationwide LTE rollout (covering 99% of the population) by June 2012 and is providing LTE coverage in underground and in-building areas as well as mountainous region, and coastal/island/marine areas.

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LTE: South Korea: SK Telecom hits 4 million suscribers.

WorldWide Tech & Science. Francisco De Jesùs.

South Korea: SK Telecom hits 4 million suscribers.

South Korean number-one operator SK Telekom revealed it now has more than 4 million subscribers on its LTE network.

The operator added 1 million subscribers in just 44 days (it hit the 3 million mark on June 6), with an average of 41,000 LTE users signing up per day in July, a 71 percent increase from the 24,000 in June.

The company said the subscriber growth “solidifies” its position as the world’s second-largest LTE service provider (behind Verizon Wireless of the US).

With 75 percent of new subscribers choosing its LTE services, SK expects to add 1 million users in July, with the number of subscribers hitting 7 million by the end of the year.

 

According to executive VP and head of SK Telecom’s marketing division, Jang Dong-hyun, the operator completed its LTE deployment, covering 99 percent of the population, by 1 June.

At the beginning of July, SK launched what it claims is the first multi-carrier LTE service. The operator plans to roll out the multi-carrier LTE technology across Seoul and six other metropolitan cities by the end of 2012. More than 300,000 multi-carrier compatible devices have been sold so far, with SK expecting to sell more than 3 million devices by the end of the year.

Around 200,000 LTE-enabled Samsung Galaxy S3 devices were sold in the 10 days following its launch on 9 July.

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LTE: SK Telecom in talks with Vodafone for LTE.

WorldWide Tech & Science. Francisco De Jesùs.

LTE: SK Telecom in talks with Vodafone for LTE.

SK Telecom, the south korea nation’s top mobile carrier, said Tuesday that it is in negotiations with U.K. firm Vodafone to export its in-house advanced telecommunications technology. The firm said the move is part of efforts to strengthen alliances to enable a global presence.

The so-called Smart Push technology is the primary target for the United Kingdom-based telecom group. ``Collaboration with Vodafone will be strengthened as it has keen interest in using the SK technology amid the migration into data-intensive long-term evolution (LTE),’’ said an SK executive, Tuesday.

In February, senior Vodafone executives, who manage the corporate network-related strategies, met with SK Telecom officials in Seoul and tentatively agreed to forge a close tie-up in LTE services.

The Smart Push tech, which is one of SK Telecom’s ``PETA’’-dubbed solutions, enables the smooth usage of social networking services or messengers and also facilitates the large amount of data traffic on Web-connected smartphones and tablets.

Vodafone isn’t the only firm that wants to boost a strategic partnership with the Korean mobile carrier. France’s No. 2 carrier SFR has also approached SK Telecom to check out the development phase of SK’s LTE solutions before entering into a comprehensive partnership, SK said.

SK Telecom is partnering with Nokia Siemens Networks (NSN) for the Smart Push technology. Under the pact, the Korean firm is providing the solution, while NSN will be in charge of overseas sales.

``We have signed various non-binding memorandum of understanding with top overseas carriers. One inspiring signal is that they want to learn from our experiences and know-how in managing LTE services,’’ said a company spokesman.

SK Telecom is Korea’s top LTE service provider with the number of its customers exceeding 3.6 million as of last Friday, followed by LG Uplus and KT with 2.9 million and 1.5 million, respectively. 

Currently, the flagship of SK Group is the world’s second-biggest LTE service provider beating Japan’s NTT DOCOMO but behind Verizon Wireless of the United States. 

To offset the stalling local growth, all Korea’s three carriers are heavily investing in LTE networks, though huge costs for promotional campaigns in the nascent but growing market are causing them to suffer from a steep decline in profit.

Although SK Telecom was late in LTE solutions, the carrier has begun stealing share from rivals by offering high-end LTE solutions including Multi-Carrier, Advanced-SCAN and Hybrid Network Integration System as well as PETA.

In a statement, SK said Taiwan Mobile Chief Technology Officer Tom Koh also recently visited the firm’s headquarters to discuss several pending issues with SK management. ``Taiwan Mobile has requested the meeting,’’ he said, adding the partnership has been expanded to education, healthcare and security.

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