Download HSDPA HSUPA for UMTS: High Speed Radio Access for Mobile by Harri Holma PDF

By Harri Holma

From the editors of the hugely profitable WCDMA for UMTS, this new ebook presents a finished and updated connection with excessive velocity Packet entry (HSPA) applied sciences for WCDMA. The editors hide either HSDPA and HSUPA, together with an in-depth description and rationalization of 3GPP criteria, and anticipated functionality in line with simulations and primary measurements. The textual content additionally discusses the influence of HSDPA and HSUPA on community dimensioning, covers functions and end-to-end functionality intimately, and features a part on radio frequency standards and terminal layout considerations.The so much complete and complicated consultant to the HSDPA (High pace Downlink Packet entry) and HSUPA (High pace Uplink Packet entry) applied sciences and standardisation, HSDPA/HSUPA for UMTS:Analyses the effect of HSDPA/HSUPA on community dimensioning, discussing co-existence with R99 (Release ninety nine) and GPRS/EDGE (General Packet Radio providers/ more desirable information GSM Environment)Contains a bit on purposes and end-to-end (e2e) performanceIncludes a bankruptcy on radio frequency (RF) requisites and terminal layout issues, masking varied RF bands, multi-band HSDPA and multi-mode HSDPA+EDGE demanding situations, energy consumptionProvides a variety of illustrations of 3GPP (Third iteration Partnership undertaking) criteria and performanceThis name offers very good assurance of the realm for method, point and chip designers, community planners, technical mangers with owners, operators and alertness builders. it's also excellent for postgraduates and researchers in similar parts.

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Extra info for HSDPA HSUPA for UMTS: High Speed Radio Access for Mobile Communications

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Work started during the corrections phase for HSDPA, beginning with the study item on ‘uplink enhancements for dedicated transport channels’ in September 2002. From the vendor side, Motorola, Nokia and Ericsson were the supporting companies to initiate the study in 3GPP. 3: . . . fast physical layer Hybrid-ARQ (HARQ) for the uplink; fast Node B based uplink scheduling; shorter uplink transmission time interval (TTI) length; higher order modulation; fast DCH setup. HSPA standardization and background 13 Fast Node B scheduling for uplink Shorter TTI for uplink HARQ for uplink HSUPA?

One of the motivations for code multiplexing is the case when more than five codes can be devoted to HSDPA use. 11 Operation in the case of single HS-SCCH and time multiplexing. , 15. The higher the data rates and terminal capabilities the smaller the need for code multiplexing. The use of code multiplexing is not necessarily needed either when the carrier is shared with DCH traffic, or when there is a desire to have HSDPA data users operating with reasonable data rates – in the order of 384 kbps or more.

In the downlink, a good-quality common pilot channel (CPICH) allows estimation of the optimum channel without excessive user-specific pilot overhead. The CPICH offers the phase information directly, but there is the need to estimate the power difference between the CPICH and HS-DSCH power level to estimate the amplitude information accurately as well. This suggests that at the base station end there are also power changes that – during the 2-ms transmission – should be avoided. The HS-DSCH can use a number of multicodes, with a spreading factor of 16.

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