Tech-invite  3GPPspecsRELsGlossariesSIP
21222324252627282931323334353637384‑5x

Top   in Index   Prev   Next

TR 36.878RAN4
Study on Performance enhancements
for High Speed Scenario in LTE

use "3GPP‑Page" to get the Word version
for a better overview, the Table of Contents (ToC) is reproduced
V13.0.0 (Wzip)  2016/01  92 p.

WI Acronym:  FS_LTE_high_speed
Rapporteur:  Mr. Han, Jing

In some countries, several vehicles move with the speed over than 300km/h, e.g., Japan Tohoku Shinkansen (320km/h), German ICE (330km/h), AGV Italo (400km/h), and Shanghai Maglev (430km/h). With the increase of high speed moving environment, the demand of using mobiles in such an environment in E-UTRA is growing larger. Therefore, it is important to guarantee the performance under such environment in E-UTRA.
However, in the current 3GPP specifications, since the maximum speed guaranteed in BS performance is up to 350km/h, it would be challenging to keep up with the speed of vehicles moving around 400km/h. In addition, since the speed guaranteed in BS demodulation, UE demodulation, and UE RRM specifications are different, even though the speed up to 350km/h is guaranteed in BS specification, the same speed cannot also be ensured in UE demodulation and UE RRM specification as well. Given the fact above, it is essential to comprehensively revisit and enhance the existing requirements to ensure the system performance under high speed environment in E-UTRA.
In addition, due to different commercial network deployment scenarios of operators and surrounding environments (downtown/suburban or mountain areas), there may exist some issues/scenarios that the current specified requirements may not be able to cover and to guarantee the solid performance. Therefore, it would be worth investigating potential issues/scenarios and identifying some new requirements to ensure them from various aspects where the current requirements are missing now.
The present document is the Technical Report for the Study Item on performance enhancements for high speed scenario in LTE.

full Table of Contents for  TR 36.878  Word version:   13.0.0

Here   Top

 

1  ScopeWord-p. 6
2  References
3  Definitions, symbols and abbreviations
4  IntroductionWord-p. 8
5  RRM and demodulation requirements enhancements under existing high speed scenarioWord-p. 9
6  RRM and demodulation requirements enhancements under identified high speed scenarios
6.1  General
6.2  Identified Scenarios
6.3  RRM requirements enhancements under identified high speed scenariosWord-p. 38
6.4  Downlink performance enhancements under identified high speed scenariosWord-p. 53
6.5  Uplink performance enhancements under identified high speed scenariosWord-p. 78
7  ConclusionsWord-p. 88
A  Mobility in Unidirectional SFN DeploymentWord-p. 89
B  Change historyWord-p. 91

Up   Top