Carrier and bandwidth requirements for current and future wireless air interfaces pose challenges for 3G base station OEMs who must choose a platform that can quickly meet the processing requirements of high-density baseband applications. TI's new and scalable programmable development environment enables high flexibility and efficiency, enabling operators to easily upgrade from GSM/WCDMA/HSPA to LTE on a unified platform, enabling OEMs to unify The platform meets the requirements of various wireless standards to maximize network utilization efficiency.
The development platform is based on TI's multi-core TMS320TCI6487 and TMS320TCI6488 DSP and multi-interface software libraries, and supports a variety of major air interfaces, including GSM-EDGE, HSPA+, TD-SCDMA, LTE and WiMAX.
The TMS320TCI6487 is a triple-core DSP running at up to 3.6GHz. Combined with a powerful software library, it can meet the complex algorithm requirements of LTE and fully comply with the high-density MIPS Long Term Evolution (LTE) wireless standard. The target market for the TCI6487 is the TD-SCDMA, WiMAX and CDMA2000 wireless infrastructure baseband markets, which can easily support MIMO, beamforming, etc. without any hardware design.
Block diagram of the TMS320TCI6487/8.
The TMS320TCI6488 is a high performance DSP specifically designed for WCDMA wireless infrastructure baseband applications. It features high functional integration and high channel density on a single chip, providing a modular and scalable design with a small footprint for lower system cost and eliminates the need for an accelerator ASIC. The TCI6488 is an ideal solution for femto base stations, micro base stations, and macro base stations, providing system-on-chip (SoC) baseband solutions for WCDMA Tx and Rx applications. The TCI6488 is also a software programmable solution that allows reuse of existing C64x and C64x+DSP code.
In addition to reducing development time, TI simplifies design by enabling MAC and PHY layer processing on the same platform. The advantages of this development platform are mainly reflected in the following aspects.
1. Multi-carrier platforms reduce operator investment. The TI baseband platform provides the largest number of carriers per channel card, helping operators to achieve significant cost savings (CAPEX) and ensuring support for new features and standards based on unified baseband hardware.
2. Multi-standard platforms increase operator flexibility. TI's multi-standard DSP platform gives operators the flexibility to support new standards and features based on market demand. For example, 3G operators can use TIDSP-based platforms to support current WCDMA-HSPA and upgrade to the same hardware based on market demand. HSPA+ or LTE to meet the market demand for new applications. Similarly, TD-SCDMA operators can upgrade to LTE-TDD, and in some cases, GSM-EDGE operators can upgrade directly to LTE.
3. Multi-core DSPs support end-to-end performance. The TCI6487 and TCI6488 support the need to handle intensive, high-density applications with its rich, high-performance features. Multi-core DSPs have on-chip accelerators that support multiple wireless communication applications without the need for an FPGA or microprocessor. Both DSPs use an on-chip antenna interface that complies with OBSAI and CPRI standards, allowing direct connection to an RF transceiver card or remote radio head (RRH) via the backplane.
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