InterDigital Inc (IDCC)

[redhot]

TD-SCDMA by IDCC from tdscdma-forum:
A full Layer 1 modem and Layer 2/3 implementation
for narrowband TDD to accelerate time-to-market
for TD-SCDMA products.
Product Features:
• A family of TD-SCDMA modem IP blocks,
terminal components, and associated
software that provide complete solutions
for TSM and for UMTS TDD 1.28Mcps
Option (LCR-TDD)
• A complete TSM modem for integration
with LCR-TDD modem chip
• Complete integrated solution to enhance
GSM with TD-SCDMA operation
• Interfaces with proven FDD or GSM
hardware and software solutions.
• Both products support voice as well as
data at high rates, up to 384kbps. LCR-TDD
version conforms to the UMTS Reference
combination of UE Radio Access capability for
the class of 384kbps. TSM can support a class
mode A, simultaneous transmission and
reception of circuit and packet switch data.
• Extensive power management and sleep
modes enable very low power consumption
• Applications: Phones and Smart Phones,
Wireless PDAs, Communicators, Wireless
Modules, Data Centric Wireless Devices
TD-SCDMA Complete
Product Solution Family
Includes:
• Layer 1 baseband modem libraries and
associated software for TSM
• Layer 1 baseband modem libraries and
associated software for LCR-TDD
• Operation with leading RF radios
• GSM / GPRS Protocol Stack modified for TSM
• UMTS Layer 2/3 protocol stack for LCR-TDD
• Application Notes and Engineering Support
for ASIC design
InterDigital is a pioneer and leader in TDD technologies and is a key
contributor in defining the TDD standard. Our expertise ranges across
all modes of TDD, which makes InterDigital an attractive global partner
for OEMs that want to support multiple modes around the world.
Our narrowband Time-Division Synchronous CDMA (TD-SCDMA)
baseband chip and software products offer cost effective integration
of TD-SCDMA capability into GSM wireless terminals. Two modem
designs support voice as well as high rate data up to 384kbps.
One is fully compliant with the CWTS TD-SCDMA System for Mobile
(TSM) standard. The other is fully compliant with the UMTS TDD
1.28Mcps (LCR-TDD) 384kbps class of UE service. Both designs can
be integrated with existing GSM/GPRS IC solutions to add cost-effective
TD-SCDMA functionality, while accelerating time-to-market. The modem
can also be implemented as a bolt-on ASIC. Manufacturers of smart
phones, communicators or PDAs can offer multimode GSM/TD-SCDMA
user equipment with minimal added development time, cost and risk.
The complete TD-SCDMA baseband modem chip design
includes the physical layer chip, Layer 1 control, Layer
2/3 protocol software and interface to a TDD radio. A
comprehensive reference platform, integration services,
and software development kit reduce integration time
and enable rapid product development.
55MHz of unpaired spectrum have recently been
designated for TD-SCDMA deployment in China
with 100MHz more earmarked for a later date.
Recommendations for designating more bands
will be discussed in WRC-2006 with more unpaired
spectrum possible.