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

To: waitwatchwander who wrote (33286)	3/9/2003 10:23:33 PM
From: rkral	Read Replies (2) \| Respond to of 196720

Northforce, re "The handoff is at the phone." That's definitely incorrect. The phone participates in the handoff, but the phone is handed off by facilitates at the other end of the air interface. IOW, a change in the connection path involves more than just a change in the carrier frequency, e.g., the CDMA channel. In CDMA, the terms softer, soft, and hard handoff each mean a different handoff responsibility, at least conceptually. A softer handoff is from sector to another sector within one Base Transceiver Station ("BTS"), so the BTS could handle the handoff without any assistance from the (higher level) Mobile Switching Center ("MSC"). Whether it does or not, I don't know. A soft handoff is from one BTS to another BTS and must be handled by the MSC (or higher level device). I think a hard handoff must be handled by the core network. re "a handoff from ANSI-41 Mobile Application Part ("MAP") to GSM-MAP core network, or vice versa " I could easily be wrong about that never happening. The MAP is just part of the software protocol stack. IMHO, there is nothing preventing the same physical core network from having both an ANSI-41 MAP and a GSM MAP. I'm unaware of that combination existing anywhere, but that doesn't mean much. I'm sure to be unaware of many things. <gg> Regards, Ron