Jha also stressed that Qualcomm’s own flavor of LTE, dubbed Ultra Mobile Broadband (UMB), being pushed by the 3GPP2 organization and seen as the route to faster data rates as will be based on OFDM and multiple-input multiple-output (MIMO) antenna technologies, but cautioned this does not mean compatibility between the two approaches or with mobile WiMAX. WiMAX, touted as potential rival to developing 3G mobile phone standards, is a bone of contention with Jha, and Qualcomm. “The bottom line is we don’t think it is exceptional technology and the business case is not convincing either.”
“As it stands, the standard is flawed; there are poor control channel structures, and the system will not do latency or hand off. Then there is the spectral efficiency. There are so many versions and radios that have to be supported – where is the scale, where is the economy, where is the ubiquity coming from? And if there is one thing that irks me more than anything about what its proponents and analysts say, it is that WiMax is and will be cheaper to deploy for an IP network than cellular. I have yet to understand why that should be so. From Release 7 on there is full support for IP and backhaul in HSDPA and HSPA, not to mention HSPAplus.”
- from EEtimes.eu, June 4 2007
No comments:
Post a Comment