Saturday, July 30, 2011

GSA: LTE user devices grow 155% in 6 months

According to recent GSA report 45 manufacturers have announced 161 LTE-enabled user devices, representing 155% growth in the number of products reported by GSA in early February 2011.

Most devices are designed to ensure ubiquitous mobile broadband coverage by supporting existing mobile network technologies – i.e. dual mode working. The report indicates for each device where complementary modes are supported e.g. HSPA, HSPA+ and/or EV-DO and TD-SCDMA as appropriate, in addition to the LTE mode. Around 100 products support LTE and HSPA (or HSPA+) modes.

Breakdown of 161 LTE user devices are shown below.

Source: GSA report Status of the LTE Ecosystem

Network Sharing in LTE

3GPP network sharing architecture allows different core network operators to connect to a shared radio access network. The operators do not only share the radio network elements, but may also share the radio resources themselves.

Network-sharing scenario allows operators without a UMTS/ LTE license to share the network and supply its customers with 3G/4G services. For example, a 2G operator may supply its subscribers with 3G/4G services using another operator’s allocated spectrum.

3GPP has identified two architectures for network sharing. In both architectures, the radio access network is shared.

In first architecture evolved packet core network element MME is also shared in addition of radio access network (E-UTRAN). This configuration is referred to as a Gateway Core Network (GWCN) configuration.

In second architecture only radio access network (E-UTRAN) is shared and is referred as the Multi-Operator Core Network (MOCN) configuration.

The UE behavior in both of these configurations is same. No information concerning the configuration of a shared network is indicated to the UE.

If the E-UTRAN is shared by multiple operators, the system information broadcasted in each shared cell contains the PLMN-id of each operator (up to 6) and a single tracking area code (TAC) valid within all the PLMNs sharing the radio access network resources.

Based on system broadcasts UE selects desired PLMN and reports it to eNB during RRC connection setup. eNB includes the selected PLMN is in the INITIAL UE MESSAGE message while sending it to MME. The MME indicates the selected core network operator PLMN-id to the UE in the GUTI during initial attach procedure.

source: LteWorld

Wednesday, July 20, 2011

GSA: 91 commercial LTE networks by 2012

The GSA (Global mobile Suppliers Association) has confirmed that 218 operators are now investing in LTE. According to GSA, 166 firm commercial LTE network deployments are in progress or planned in 62 countries, including 24 networks which have commercially launched. A further 52 operators in 19 additional countries are engaged in LTE technology trials, tests or studies.

The 62 countries and territories having firm LTE network commitments are Andorra, Armenia, Australia, Austria, Bahrain, Belgium, Brazil, Canada, Chile, China, Colombia, Croatia, Denmark, Estonia, Finland, France, Germany, Hong Kong, Hungary, India, Ireland, Italy, Jamaica, Japan, Jersey, Jordan, Kazakhstan, Kuwait, Latvia, Libya, Lithuania, Luxembourg, Malaysia, Moldova, Monaco, Namibia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Philippines, Poland, Portugal, Qatar, Romania, Russia, Saudi Arabia, Singapore, Slovenia, South Africa, South Korea, Sri Lanka, Sweden, Switzerland, Taiwan, Tunisia, UAE, UK, Uruguay, USA, and Uzbekistan

24 LTE networks are commercially launched in 16 countries: Austria, Denmark, Estonia, Finland, Germany, Hong Kong, Japan, Lithuania, Norway, Philippines, Poland, Singapore, South Korea, Sweden, USA, and Uzbekistan.

source: GSA