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HelloCellular™ products enable voice and data services on 2/2.5/3G wireless networks. HelloSoft offers end-to-end radio access solutions for converged wireless networks such as UMA/WCDMA and existing networks such as GSM.
HelloSoft offers complete solutions for existing wireless networks such as GSM/GPRS/EDGE and also for emerging wireless networks such as UMA and
UMTS.
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| HelloSoft's GSM/GPRS/EDGE solution comprises of
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| i.
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Implementation of physical layer (L1) and protocol stacks (L2/L3) for GSM/GPRS/EDGE (terminal side), integrated with analog front-end (AFE) and RF modules
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| ii. |
Highly optimized implementation of physical layer software on wide range of
DSP/FPGA platforms
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| iii. |
Complete protocol stacks software suite that includes LLC,
RLC/MAC, SMS, SM, CC, LAPDm, RRM, MM, GMM, SNDCP and SIM controller. The protocol stacks software is optimized for industry leading CPUs such as ARM and
MIPS
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| HelloGSM/GPRSTM |
| HelloSoft's GSM/GPRS/EDGE solution is ETSI Phase 2+ compliant and consists of |
| i. |
Physical layer (L1) and Protocol stacks (L2/L3) for
GSM/GPRS/EDGE |
| ii. |
Highly optimized implementation of physical layer on processors such as Sand Bridge, TIC55x and other proprietary processors/FPGAs.
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| iii. |
POSIX compliant protocol stacks are optimized for porting onto processors such as ARM and MIPS. |
| Product Features |
| i. |
Class B, C Mobile stations with Class 1-14 multi slot GPRS |
| ii. |
GSM services using HR, FR, EFR and AMR speech codecs |
| iii. |
Transparent and non transparent data services include CSD, ECSD and HSCSD |
| iv. |
GSM 850/900/1800/1900 MHz bands |
| Physical layer IP blocks |
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The GSM/GPRS/EDGE solution includes innovative and low complexity patented algorithms for superior receiver performance even under worst channel conditions.
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| The IP blocks include: |
| i. |
GMSK Modulation (Patent Pending) / 8PSK Modulation |
| ii. |
Time and Frequency Synchronization (Patent Pending) |
| iii. |
A novel modified SOVA based GMSK equalizer (Patent
Pending) |
| iv. |
Low complexity Fire decoder for CS1 channel decoder (Patent Pending) |
| v. |
Supports CS 1-4 and MCS 1-9 |
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| Salient Protocol Features |
| HelloSoft provides optimized implementation of the GSM/GPRS/EDGE protocol stacks. Features include: |
| i. |
Highly Optimized, modular and scalable design with high performance and small footprint |
| ii. |
Optimized inter and intra-layer communication for best performance with clearly defined interfaces between layers
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| iii. |
Macro level debug facility |
| iv. |
Can be ported to any operating system with minimal effort |
| The functional blocks of the protocol stack software are as follows: |
| Conformance to ETSI |
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The GSM/GPRS/EDGE solutions has been tested to industry standard system simulators (ANITE/AEROFLEX). The physical layer performance exceeds the ETSI
specifications.
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| Solution Availability |
| i. |
HelloSoft's GSM/GPRS/EDGE L2/L3 solution is available in ANSI C (fixed point). b) HelloSoft's
GSM / GPRS / EDGE L1 solution is available in ANSI C (fixed point) and RTL formats
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| ii. |
The physical layer is ported on to different processors such as
SandBridge, TIC55x. |
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