Qualcomm's next-generation LTE-A Pro Modem engineering sample H2 comes out, 2017 mass production
After 4G commercialization, the problem of slow data uploading and downloading speed of mobile phones has been alleviated to a certain extent. The focus of the industry has gradually shifted to the field of local wireless communication and control, such as Bluetooth Mesh, WiFi, Zigbee and 2.4G RF, but in fact, the world Mobile operators are interested in the next generation of higher data rate LTE-A Pro and 5G cellular network communication technologies. For example, US mobile operator Verizon conducted 5G field trials in 8-9 different locations in the US last month. More than 1 Gbps of data transfer rate is achieved, and mobile hotspots and fixed wireless are planned as early applications for their 5G wireless technology.
Market research firm Juniper Research recently made a far-sighted forecast for the 5G market outlook: although the first 5G commercial deployment is expected to be available in 2020, the adoption of 5G services will be very common by 2025. By 2025, global 5G service revenue is expected to exceed US$65 billion, which is a surge of US$100 million in its first year of commercial operation in 2020, and will account for approximately 7% of total operator service revenue in 2025.
Qualcomm, which has been the market leader in the 2G, 3G and 4G Modem markets, has been developing LTE-A Pro modems in recent years. In February last year, it publicly announced the development of the industry's first LTE-A Pro with a speed of 1Gbps. Modem. According to industry authorities, this Modem project sample from Qualcomm will not be introduced to the market until the second half of 2016, and mass production will be in 2017.
LTE-A Pro and 5G Modem need to be implemented with 5-carrier aggregation technology, which will bring a very large modem control challenge, because each carrier needs to perform measurement, calibration and other processing functions, and often needs to process two simultaneously. Units increase the complexity of receive link control. Moreover, since LTE-A Pro and 5G Modem integrate multiple different modes of modem into one Modem, software solutions that can efficiently integrate LTE-A, 3G, TD-SCDMA and 2G, and ultra-low time are needed. The transfer from one system to another.
The three major challenges of the next-generation LTE-A Pro and 5G modem baseband implementation can be summarized as follows: First, how to arrange the PHY (physical layer) of the modem is a very headache, because you need to schedule many accelerators and processors in real time. And coprocessors, which require a very mechanism to automatically arrange the location of the PHY components to achieve very low latency without additional overhead; second, the complexity of speech processing is growing rapidly. Compared with the traditional codec, the complexity of VoLTE (EVS) has increased by 4-5 times. Not only that, but the power budget is also very tight, and the memory demand has increased 10 times compared with AMR. Third, modem Must be an ultra low energy design. First, the machine must have a competitive battery operating life, which increases design complexity. Second, a special deep sleep mode must be designed for the idle period of the modem.
CEVA's recently launched CEVA-X4 processor IP is the perfect solution for the above design challenges. It is also the world's first processor IP for multi-format PHY control development for LTE-A Pro and 5G modems. It integrates control layer processing and advanced DSP processing for PHY control applications and uses scalable VLIW and SIMD instruction architectures to support fixed-point and floating-point processing operations.
Figure 1: Eran Briman, Vice President, Marketing, CEVA
Eran Briman, vice president of marketing for CEVA, said: "Compared with the previous generation, CEVA-X4 processor IP has improved DSP processing performance by 2 times, power consumption by 50%, and control performance by 3 times. CoreMark/MHz standard The control capability test result is twice that of Qualcomm's similar products."
Figure 2: CEVA-X4 greatly simplifies the current LTE-A Pro and 5G modem baseband design
When CEVA-X4 and CEVA-XC4500 processor IP are used together, the next-generation LTE-A Pro and 5G modem can achieve the following performances: 1) 5 carriers achieve 100MHz bandwidth; 2) downlink data rate reaches 1.2Gbps; 3) uplink The data rate reaches 220Mbps; 4) Simultaneously run multiple standard Modem, realize dual SIM, macro base station and home small base station simultaneous connection, 3G call and LTE-A Pro data downlink; 5) Scalable architecture, able to support upcoming release Rel.14 version (supports 32 carriers).
CEVA is currently the global leader in the IP supply market for baseband processors and the world's number one DSP IP provider for cellular baseband. Eran Briman said: "In 2015, one out of every three smartphones in the world adopted CEVA's baseband IP. CEVA is also the world's first LTE/LTE-A DSP IP provider (to date, it has won more than 20 design wins), CEVA Can provide complete LTE-A, LTE, TD-SCDMA, WCDMA and 2G baseband IP. CEVA's current iconic customers are Samsung, Intel, Lianxin Technology and Spreadtrum."
Suppliers that have obtained CEVA baseband IP licenses include: MediaTek, New Shoreline, VIA, ZTE, Spreadtrum, Samsung, Intel, Lianxin Technology and CYIT.
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