Friday, September 23, 2011
Thursday, June 30, 2011
Role of Interconnect Network in enabling HD Voice
http://emags.tmcnet.com/emags/2011/uc/UC_Jun2011.pdf
Sunday, June 5, 2011
Beyond the Border: Differentiating IPX services with value added features
Moving up the Value Chain and Capturing New Revenue Streams with IMS
NGN Article: Moving up the Value Chain and Capturing New Revenue Streams with IMS
Thursday, January 20, 2011
Smartphone OS update
I continue to believe that, in the long run, Android and iPhone OS will triumph in the marketplace. The iPhone OS relies entirely on iPhone sales. Android, on the other hand, runs on a variety of phones from different handset manufacturers. As a result, in the long run, Android will be the No.1 smartphone OS in the market. Windows has a good product in WP7, and there are rumors that Nokia will OEM MIcrosoft's WP7. However, it is unlikely that WP7 will take away any market share from Android and iPhone OS. In the long run, there will be only 2 OS running on smartphones - iPhone OS running on all iPhones, and Android running on all other smartphones.
My ranking of smartphone OS:
- Android
- iPhone OS
- BLackberry OS
- Microsoft WM7
- Symbian
- Linux-based
Wednesday, March 17, 2010
LTE Releases - A Commentary
3GPP is responsible for defining the specifications for a number of wireless standards such as GSM, GPRS, UMTS, HSPA, IMS, and LTE. 3GPP specifications are organized and issued as “Releases” – Release 99, Release 1, Release 2, etc. However, each Release and, in many cases, each specification within a Release, includes changes and updates to multiple standards such as GPRS, UMTS, IMS etc. For the average reader, this is confusing and it is sometimes difficult to ascertain which section(s) of a specification or which update applies to which standard.
For example, the Release 8 March 2009 version of the 3GPP specifications is considered to be the first stable reference release for all LTE commercial products. This is not necessarily obvious to an average reader. Subsequent LTE releases are all expected to be backward compatible with this release. In fact, Release 8 is the first 3GPP release that defines the LTE specifications.
Release 9 builds on the functionality specified in Release 8, and includes a number of enhancements. These include enhancements to Home Node B (also called Femto Cells), definition of the requirements for LTE Home Node B, Emergency Calls for VoIP, MBMS (Multimedia Broadcast Multicast Service), LTE Self Organizing Networks, among others.
Release 10 introduces “LTE Advanced” which is expected to provide true 4G speeds at 100Mbps peak. This is achieved by aggregating spectrum for better bandwidth. This release is expected to be available in March 2011 and will be backward compatible with the previous releases. Release 10 is expected to be a “major” release – any operator deploying Release 10 can apply the trademarked label “LTE Advanced” to its network. Release 10 is expected to provide full support for LTE Home Node B (LTE Femto Cells), as well as fully specify LTE Self Organizing Networks (SON). SON is important in LTE due to the flat nature of the network in which Node Bs interface with each other over the X2 interface.
LTE specifications are expected to support both Voice and Data, contrary to popular notion that it only supports Data. Support for Voice is enabled through a series of updates to the 3GPP specifications, such as the support high quality VOIP encoding in Release 7 (to match the quality of circuit switched voice calls), support for IMS emergency calls in Release 7, and updates to the radio and core network in Release 8. Support for Voice in LTE will be based on IMS, and is being specified in conjunction with a GSMA initiative called “Voice Over LTE” (previously called OneVoice).