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 人参与 | 时间:2021-06-20 02:07:56

Siemens, which has been working for several years with MII on TD-SCDMA, hopes to hold a lead over other wireless vendors. However, all the other major handset and equipment companies have now joined the industry/government TD-SCDMA Forum that is coordinating activity on the standard.

We have now introduced the Quickturn transaction interface. It is very similar to what the Ikos API calls for and we think ours will be faster. We are looking at proposing it to Accellera.”

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Merger activity in the semiconductor industry moved to a new level with the announcement of the agreement for Avago Technologies to acquire Broadcom, according to market research firm IHS.

The deal, which is valued at $37 billion in cash and stock, will create a new company valued at $77 billion.

This is the latest and, by far the largest, merger in the semiconductor industry, as major players continue to move in an aggressive way to establish position and profitability in key segments of the industry, said Dale Ford, vice president and chief analyst for IHS Technology. Investors have responded favorably to the announcement, with promised bottom-line benefits derived from realized cost savings.

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The combined revenues of the two companies in 2014 exceeds $14 billion, making the newly merged semiconductor company the sixth-largest globally, according to final annual semiconductor market shares. More significantly, the combination of the two companies creates the third-largest semiconductor supplier, trailing only Intel and Qualcomm, if memory integrated-circuit (IC) revenues are excluded.

The complementary product portfolios of the two companies move them into a powerful position, in both the communications IC market and the storage IC market, Ford said.

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Quadrupling in size in two yearsThis latest move from Avago Technologies has formed a company with revenues four times greater than in 2013. The two biggest recent mergers by Avago Technologies were the acquisition of LSI in 2014 and this new acquisition of Broadcom.

VoIP, in contrast to PSTN, uses what is called packet-switched telephony. Using this system, the voice information travels to its destination in countless individual network packets across the Internet. This type of communication presents special TCP/IP challenges because the Internet wasn’t designed for the kind of real-time and deterministic communication a phone call represents.

While PTSN-based POTS provides only limited features, low bandwidth, and no mobile capabilities, it has something that after my experiences with VoIP I now value more than I used to: dial-tone availability — that is, a live line — 100 percent available, always or as close to that is as humanly possible. That is due in part to a totally battery-backed up network independent of the power grid. Previously in the United States, when AT&T/Bell was a regulated semi-private company, such backup was government mandated. Now, even though they are no longer government regulated, many of the local telecom companies (BabyBells) that were spun off after deregulation still use it on their PTSN systems, especially in rural areas in the Midwest and inner west of the United States.

Aside from the cost of conversion, the only thing that prevents local BabyBells from doing away with PSTN is that users would scream. I live in a rural area in Northern Arizona, where we get varying levels of snow, rain, and thunderstorms during the fall and winter. Invariably, power outages occur, and when my connection to my Internet Service Provider goes down, there goes not only my ordinary Internet access, but my VoIP line as well. Of course I have my cell phone, but only until my battery runs out. I can recharge the cell phone from the cigarette lighter in my truck, but not my computer or my Internet modem.

There is no such end-to-end battery backup for IP, of course, and there is a lot of work yet to be done to overcome the inherent unreliability of voice over IP. PTSN still has something close to the 99.999% (no more than five minutes of a dead line a year) reliability that the original AT&T/Bell system did. None of the VOIP systems I have tried over the years has anything like this. My grade overall for VoIP is not even 90%. Maybe 70 percent at best.

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