Electronic enthusiast network [compilation / vincent]: For more than a year, many well-known chip companies including ST-Ericsson, Nvidia, Marvell, Renesas Mobile, etc. have been developing LTE baseband chips. However, so far, there have been few opportunities to showcase their R & D results.
They all claim to have their own modem chips, which will come in handy when LTE is put into commercial use on a large scale, but there is currently no actual plan, and even at the CES show last week, it is difficult to see the signs of LTE commercial use.
We can certainly blame the LTE market, which currently hardly exists. In addition to the United States, LTE launched elsewhere has been progressing slowly.
We can also complain about Samsung and Apple. The two companies almost monopolized the high-end smartphone market. Samsung designs its own LTE baseband chip, while Apple uses Qualcomm chips, so there is not much room for others.
The development of baseband chips is a never-ending task. It needs to be adjusted, tested, modified, certified, or before mass production.
For any company, this is a long and arduous process, and it is destined to take up a lot of resources.
Some people speculate that ST-Ericsson and Renesas Mobile may have no choice but to be acquired by companies like Samsung due to limited time and resources, so that these companies can survive the endless difficulties before they see their Production of mobile phones with chip design.
Will Strauss, president of Forward Concepts, believes that a large number of successful LTE modem designs may be announced during the Mobile World Congress next month.
In fact, there is no shortage of news about new LTE chips at CES. Qualcomm announced its Snapdragon 8000, which has a quad-core Krait 400 CPU (which will speed up to 2.3 GHz per core), Adreno330 GPU and 4G LTE Cat 4 and 802.11ac, providing connectivity to cellular modems with data transfer rates up to 150 Mbps and 802.11ac Up to 1 Gbps speed.
The NovaThor L8580 modem / application processor that ST-Ericsson unveiled at CES is based on the 28-nanometer FD-SOI process. The company stated that LTE multi-mode type 4 chips can support up to 10 LTE / HSPA / TD-SCDMA / GSM bands.
At the same time, Nvidia also announced that its new application processor Tegr 4 SoC and a separate modem are connected to the Tegra 4 chip Icera I500. Icera I500 is expected to be launched in the second half of this year. It is a software-based modem. It has a highly adaptive performance and its flexible algorithms can adapt to different types of networks.
When NVIDIA acquired Icera, Icera entered the modem market later than its competitors, Carmack said.
According to Strauss, Renesas Mobile has launched an MP6530 modem with a quad-core processor, including FDD / TDD LTE / DC-HSPA + / EDGE / GPRS / GSM and other modes, using ARM dual-core Cortex-A15 and dual-core Cortex-A7 MPCores.
At the same time, Marvell's PXA18012 chip CAT4 multimode LTE modem / application processor has its own RF and PMIC sampling and certification.
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