Company: GCTS
Filing Date: 2025-03-25
Form Type: 10-K
Source: 0000950170-25-044438
Chunk: 72

Company: GCT Semiconductor Holding, Inc.
Filing Date: 2025-03-25
Form: 10-K
Item: Item 1
Chunk 72
---
2000
    ​
    CDMA
    ​
    0.153Mbps

    3.5G
    ​
    EV-DO
    ​
    CDMA/TDMA
    ​
    3.072Mbps

    ​
    HSPA
    ​
    W-CDMA
    ​
    14.4Mbps

    4G
    ​
    LTE
    ​
    DL: OFDMA UL: SC-FDMA
    ​
    DL: 100Mbps UL: 50Mbps

    ​
    WiMAX
    ​
    OFDMA
    ​
    DL: 128Mbps UL: 56Mbps

    ​
    LTE-A
    ​
    DL: OFDMA UL: SC-FDMA
    ​
    DL: 1Gbps UL: 500Mbps

    5G
    ​
    NR
    ​
    OFDMA
    ​
    Up-to 10Gbps

​

The increased demand for wireless data services after 3G led to the development of 4G technology, known as LTE. While Worldwide Interoperability for Microwave Access (“WiMAX”) was another 4G technology, the market eventually consolidated around LTE. LTE was defined by the 3rd generation partnership project (“3GPP”), which established the Rel-8/9 standards. LTE later evolved into LTE-Advanced (“LTE-A”) and 3Band LTE-A, including standards like Rel-10 and beyond, which introduced technologies like Carrier Aggregation (“CA”), Coordinated Multi-Point (“CoMP”), relaying, and Multi-Input Multi-Output (“MIMO”).

    4G Technology
        
    Features
        
    CarrierBandwidth
        
    Downlink peak throughput

    LTE(4G : CAT3)
    ​
    Technology that is approximately 5 times faster for downloads and about 7 times faster for uploads than traditional WCDMA
    ​
    10MHz
    ​
    75Mbps
    ​

    Wideband LTE(4G : CAT4)
    ​
    Mobile communication services that are twice as fast as LTE, utilizing a 20MHz wideband LTE frequency
    ​
    20MHz
    ​
    150Mbps
    ​

    Wideband LTE-A(4.5G : CAT6)
    ​
    Mobile communication services that utilize CA (Carrier Ag