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Technology Stocks : Qualcomm Moderated Thread - please read rules before posting -- Ignore unavailable to you. Want to Upgrade?

To: Dexter Lives On who wrote (43691)	12/11/2004 4:49:02 AM
From: Raymond	Read Replies (2) \| Respond to of 197443

About message #43692 Why does this happens so often when you read technical articles.The writers get their technical information from one side and don't care to check it up or don't want to because it doesn't fit with the picture they want to give "although pre-standard technologies such as Wi-Lan’s Mobilis support hand-off at over 100 miles per hour, so the indications are good that WiMAX will be as mobile as HSDPA" WCDMA disadvantage "its uplink peak is 384Kbps" Enhanced uplink HSUPA will be out in real networks with uplink speeds up around 3.8 Mbit/s within 2 years. How many thinks that Wimax will be as mobile as WCDMA ever.I don't. It doesn't stop there.After 3GPP Rel6 with HSUPA comes Rel7 and so on with more features. "W-CDMA operators are stuck with a compromised technology with lower real world performance and lower spectral efficiency than EV-DO" In what way are WCDMA HSDPA less spectral efficient than EV-DO? In what way are WCDMA compromised? Their is no backward compatible issues for WCDMA to the GSM air interface.So what is he talking about. WCDMA has one big advantage compared with EV-DO which is always forgotten.Their is no limit what you can do at the same time on the same physical channel.Talk in the phone or video at the same time as you are doing a packet transmission for example. Another thing that is as important as Downlink max speeds is the round trip delay where HSDPA lowering it considerable compared to older type of Radio access bearers(RABs).One of the reasons for this is that they created a new retransmissionprotocol in the RBS:s and changed how often you can send a package on the air to 2 ms from 10 ms on older RABs HSDPA is also much more spectral efficient then the older RABs.You can use more of the maximum power of the cell.If the old max speeds where 384 kbps for a user you could get in much less users on a cell the then with 384kbps on HSDPA. The turbo coding rate is also much higher (Less codingbits in addition to the data bits) with HSDPA which together with 16QAM in addition to QPSK gives a higher throughput. The reason why I write all this stuff is just to show that the standards don't stand still.Everything is improving for every releaese of the standard. This is just one of the articles in a long row that compares WCDMA out in the field today with what other technologies can do in the future. I just have to repeat masa:s question. "I just have to say this: if q has "only one claim", but a competitor, well, let's say 5 or e.g. 50, who is paying what?" When this 5 basics patents is not valid any more.Will QCOM get any income at all from the other big companies in the cellular area or will it be the other way around when other companies basic WCDMA,EDGE,OFDM patents are still valid? /R

To: Dexter Lives On who wrote (43691)	12/13/2004 1:02:30 PM
From: Dexter Lives On	Read Replies (2) \| Respond to of 197443

Ericsson Joins WiMAX Forum Monday, December 13 @ 09:36:03 PST Ericsson has joined the WiMAX Forum as a principal member. Earlier in the year Ericsson announced it would stop supporting Bluetooth. Ericsson is a strong believer in open standards. "WiMAX ensures interoperability of the open IEEE 802.16 standard for broadband wireless access. It is a natural part of an operator's Ethernet broadband offering and can also serve as transmission backhaul," said Karl Thedeen, Vice President, Product Area Wireline. The fixed broadband wireless access market has until now been fragmented by different proprietary technologies. WiMAX will bring an open and widely accepted standard to that market. A WiMAX Forum Certified broadband wireless access solution would fit well in Ericsson's existing portfolio of fixed broadband and WLAN solutions. Once available, Ericsson plans to offer WiMAX as part of the Public Ethernet offering and as a complement to DSL. WiMAX technology is optimized for fixed or nomadic broadband wireless access and targets a different segment than 3G that combines mobile broadband & telephony as well as fixed usage. As the leader in communications, Ericsson is driving the evolution towards an always best connected vision. news.designtechnica.com Willie Trombone .... o8-)