Friday, 30 September 2011
Saturday, 24 September 2011
Friday, 23 September 2011
Thursday, 22 September 2011
Wednesday, 21 September 2011
Tuesday, 20 September 2011
From the Cambridge Wireless Small Cell Special Interest Group event
“Small Cells: the beginning and where we are now”
15 September 2011
At The IET, Savoy Place, London, WC2R 0BL
Chair: Mike Bowerman, Account Manager, Alcatel Lucent.
Participants (from Left to right):
Professor Will Stewart, IET
Houston Spencer, VP Solutions and Marketing, Alcatel-Lucent
Will Franks, CTO and Founder, Ubiquisys
Chris Cox, Director of Marketing, ip.access
More details about the speakers and the event available at: http://www.cambridgewireless.co.uk/Agenda/SCS1_15.09.11.pdf
Monday, 19 September 2011
Saturday, 17 September 2011
Wednesday, 14 September 2011
- Intra-band on adjacent channels.
- Intra-band on non-adjacent channels.
- Inter-band (e.g., 700 MHz, 1.9 GHz).
- Inter-technology (e.g., LTE on one channel, HSPA+ on another). This is currently a study item for Release 11. While theoretically promising, a considerable number of technical issues will have to be addressed.
Tuesday, 13 September 2011
It is our understanding that some of the Cell_FACH enhancement proposals for Release 11 are targeted to make it more attractive to keep UEs longer in the Cell_FACH state than is expected with pre-Rel-11 devices. This expectation that the UEs may stay longer in the Cell_FACH state is in turn motivating the mobility from Cell_FACH state to LTE proposal.
For instance, as the network can already today release the Cell_FACH UE’s RRC Connection with redirection, network may want to redirect UE to the correct RAT and frequency based on the UE measurement. Specifically if the network strategy is to keep the UEs long time in Cell_FACH state, it would make sense to provide the network the tools to manage the UEs’ mobility in that state. In addition, the needs for mobility to LTE are somewhat different from mobility to e.g. GERAN, as the former would be typically priority based while the latter would happen for coverage reasons. Thus, if introduced, the network controlled mobility from UMTS Cell_FACH would be specifically interesting for the UMTS to LTE case.
Will update once I have more info.
Monday, 12 September 2011
Sunday, 11 September 2011
Saturday, 10 September 2011
Thursday, 8 September 2011
Wednesday, 7 September 2011
Introduction of LTE (Long Term Evolution) brings enhanced quality for 3GPP multimedia services. The high throughput and low latency of LTE enable higher quality media coding than what is possible in UMTS. LTE-specific codecs have not yet been defined but work on them is ongoing in 3GPP. The LTE codecs are expected to improve the basic signal quality, but also to offer new capabilities such as extended audio bandwidth, stereo and multi-channels for voice and higher temporal and spatial resolutions for video. Due to the wide range of functionalities in media coding, LTE gives more flexibility for service provision to cope with heterogeneous terminal capabilities and transmission over heterogeneous network conditions. By adjusting the bit-rate, the computational complexity, and the spatial and temporal resolution of audio and video, transport and rendering can be optimised throughout the media path hence guaranteeing the best possible quality of service.
Sunday, 4 September 2011
Related post: HSPA evolution – beyond 3GPP Release 10 - Ericsson