公开(公告)号：CA2667580A1

公开(公告)日：2008-05-15

申请号：CA2667580

申请日：2007-11-07

Applicant: QUALCOMM INC

Inventor： KOTTILINGAL SUDEEP RAVI ,  RAMASWAMY RAMESH

IPC: H04L29/06 ,  H04W24/00 ,  H04W28/18 ,  H04W60/00

Abstract: The disclosure is directed to managing registration of a wireless communi cation device (WCD) operating in a wireless network. The WCD may support reg istration according to a signaling protocol, such as session initiation prot ocol (SIP). The WCD adjusts a registration timer based on network quality ex perienced by the WCD. When network quality is poor, for example, the WCD red uces the length of the registration timer. Reduced network quality may indic ate that the WCD is at risk of losing network coverage. By reducing the leng th of the registration timer when network quality is degraded, stale registr ations for out-of-coverage WCDs can be reduced. In particular, the shortened registration timer will expire more quickly, permitting the registration to be cleared more quickly. Consequently, the amount of call forwarding and ot her resources devoted to stale registrations can be reduced. If the WCD reta ins network coverage, it can maintain a registration by sending another regi stration request.

公开(公告)号：IN51MUN2015A

公开(公告)日：2015-10-16

申请号：IN51MUN2015

申请日：2015-01-08

Applicant: QUALCOMM INC

Inventor： KOTTILINGAL SUDEEP RAVI ,  RAMASWAMY RAMESH ,  JALIL SUHAIL ,  TOUZNI AZZEDINE

IPC: G06F12/02 ,  G06F12/08 ,  G06F12/10

Abstract: In the various aspects virtualization techniques may be used to improve performance and reduce the amount of power consumed by translating virtual memory addresses into physical addresses on a computing system having hybrid memory. In a first stage of memory translation (712) an operating system translates virtual addresses to intermediate physical addresses. In a second stage of memory translation (714) a chip or virtualization software translates the intermediate physical address to physical addresses based on the characteristics of the physical memory (702) and the characteristics of the processes associated with the physical memory.