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Content for  TR 45.912  Word version:  16.0.0

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0  IntroductionWord‑p. 17

GERAN is a result of over a decade of radio interface evolution that is still ongoing. While GERAN is or is being deployed worldwide also in emerging markets, evolving further the GERAN radio interface needs to be studied to ensure not only that the same services are available regardless of the underlying radio technology UTRAN or GERAN, but essentially that service continuity exists across these radio technologies supported by core network evolution e.g. IMS. Such an evolution is also needed to maintain GERAN competitiveness as well as UTRAN competitiveness.
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1  ScopeWord‑p. 18

The present document is an output of the 3GPP work item "Future GERAN Evolution" [1].
The scope of this document is to capture the results of the feasibility study on the GERAN, the objectives of which are to: increase capacity, coverage and data rates; reduce latency; and enhance service continuity with other RATs; while minimising impacts to infrastructure.

2  References

The following documents contain provisions which, through reference in this text, constitute provisions of the present document.
  • References are either specific (identified by date of publication, edition number, version number, etc.) or non specific.
  • For a specific reference, subsequent revisions do not apply.
  • For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document.
[1]
3GPP TSG-GERAN#24 Tdoc GP-051052 "Work Item Description: Future GERAN Evolution".
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3  Abbreviations

For the purposes of the present document, the following abbreviations apply:
ACP
Adjacent Channel Power
ACR
Adjacent Channel Rejection
AGI
Antenna Gain Imbalance
AMR
Adaptive Multi-Rate
AOA
Angle Of Arrival
BEP
Bit Error Probability
BLEP
BLock Error Probability
BLER
BLock Error Rate
BN
Bit Number
BTS
Base Transceiver Station
CDCU
Constrained Dual-Carrier Uplink
CDF
Cumulative Density Function
CIR
Carrier to Interference Ratio
CR
Conventional Receiver
DA
Dynamic Allocation
DARP
Downlink Advanced Receiver Performance
DSR
Dual Symbol Rate
EDA
Extended Dynamic Allocation
EFL
Effective Frequency Load
EGPRS
EDGE General Packet Radio Service
GEV
GERAN EVolution
HOMTC
Higher Order Modulation and Turbo Codes
HSN
Hopping Sequence Number
IM
InterModulation
IR
Incremental Redundancy
IRC
Interference Rejection Combining
LQC
Link Quality Control
MCS
Modulation and Coding Schemes
MDSR
Modified Dual Symbol Rate
MIP
Multipath Intensity Profile
MRC
Maximal Ratio Combining
MSRD
Mobile Station Receive Diversity
OOR
Out-Of-Range
PA
Power Amplifier
PAR
Peak-Average Ratio
RMS
Root Mean Square
SAIC
Single Antenna Interference Cancellation
SF
Stealing Flag
TTI
Transmission Time Interval
TU
Typical Urban
VSRB
Variable Sized Radio Block
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