Wireless Oom

The FACH measurement occasion information defines the times when the UTRAN halts downlink transmissions to UEs in the CELL_FACH state
to allow them to make measurements on other cells on other frequencies.

For a UE that is in any state except CELL_DCH, the measurement control information is received via the SIB messages (SIB 11 or SIB 12).
For a UE that is in the CELL_DCH state, the measurements are controlled via a MEASUREMENT CONTROL message directly received from the serving RNC.

UE positioning measurements are made by the UE GPS based measurements and observed time difference of arrival (OTDOA) measurements.
The objective is to estimate the position of the UE within the coverage area.

There are three parameters in UE internal measurements:
1. UE transmit power
2. received RSSI
3. Tx-Rx time difference

Quality measurements are used to access the quality of the RB to a UE.
It is an assessment of the number of errors that occur across the RB at a specific point in time.
Quality measurements are applied to UEs in the CELL_DCH state.

TVM represents traffic volume measurement.
The UTRAN objective is the allocation of minimum required resources to meet the QoS requirements for the UE.
If these resources are insufficient for the traffic that the UE is offering to the network, there is a build-up of traffic in buffers in the UE.
In using TVM, the UTRAN can monitor the [...]

There are three types of signal measurements:
1. intrafrequency
2. interfrequency
3. inter-RAT measurments
The outcome of all types could be either a handover to the measured cell (CELL_DCH state) or a cell reselection to the measured cell (all other states).

There are 5 different measurements in WCDMA.
1. Signal measurement:
2. Traffic volume measurements
3. quality measurement
4. UE internal measurement
5. positioning measurement

02/08/2010
DigiTimes
Domestic shipments of 3G handsets in China are expected to amount to 42.97 million units in 2010, up from 7.2 million in 2009, according to iSuppli. The research firm attributed the significant growth to aggressive subsidies from wireless carriers.
These subsidies, which make pricing of the 3G cell phones more attractive to consumers, are expected [...]

02/04/2010
IDG – Online
IDG News Service – Sony hinted on Thursday that it’s preparing a challenger to Apple’s upcoming iPad.
“That is a market we are also very interested in. We are confident we have the skills to create a product,” said Nobuyuki Oneda, Sony’s CFO, who was speaking at a Tokyo news conference held to [...]