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4G Key Technologies Patent Landscape
1.
4G Key Technologies
Patent Landscape 2Q. 2009 ©2009 TechIPm, LLC All Rights Reserved www.techipm.com
2.
1. SC-FDMA Patent
Landscape SC-FDMA (Single Carrier-Frequency Division Multiple Access) is a key technology for LTE Up-Link (from UE to eNode-B) Communication. SC-FDMA reduces the PAPR (Peak-Average-Power-Ratio): high PAPR was the problem with the conventional OFDMA. Analysis for US patents issued before January 1, 2009 and published patent applications before May 1, 2009 shows that 3Com is and Samsung are the leader in issued patent and published patent application respectively. (Fig. 1.1 and Fig. 1.2) ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 2
3.
Fig. 1.1 Top
5 assignees for SC-FDMA issued patents ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 3
4.
Fig. 1.2 Top
5 assignees for SC-FDMA published patent applications ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 4
5.
2. OFDMA Patent
Landscape OFDMA (Orthogonal Frequency-Division Multiple Access), which is a multiple access version of the well known OFDM (Orthogonal Frequency-Division Multiplexing) modulation, is the most important technology in current and emerging wireless communications. Analysis for the top 25 assignees in US patents issued before May 1, 2009 shows that AT&T is the leader followed by Matsushita Electric, Qualcomm, Samsung Electronics, Intel, and Motorola. (Fig 2.1) ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 5
6.
Fig. 2.1 Top
25 assignees for OFDMA issued patents ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 6
7.
3. MIMO Patent
Landscape MIMO (Multiple-Input Multiple-Output) is a key technology for IEEE .802.11n, WiMax, and LTE utilizing multiple antennas at both the transmitter and receiver to improve wireless communication performance. Analysis for US patents issued before May 1, 2009 and published patent applications before May 1, 2009 shows that there was a dramatic increase in patent applications recently due to active technology innovations in 4G mobile Communications. (Fig. 3.1) As for the issued patents, Qualcomm is the leader followed by Intel and Lucent as of April 30. 2009. (Fig. 3.2) As for the published patent applications, Samsung is the leader followed by Qualcomm, InterDigital, Broadcom, and TI as of April 30. 2009. (Fig 3.3) ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 7
8.
Fig. 3.1 Growth
trends for MIMO Issued and published patents ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 8
9.
Fig. 3.2 Top
10 assignees for MIMO issued patents ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 9
10.
Fig. 3.3 Top
10 assignees for MIMO published patent applications ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 10
11.
4. Femto Cell
Patent Landscape Femto cell is an emerging technology designed for use in residential or small business area cellular base station. Research for US published patent applications shows that the femto cell technology got attention among mobile technology innovators recently Research for US published patent applications shows that the femto cell technology got attention among mobile technology innovators recently, and is expected to be very competitive in technology development near future. (Fig. 4.1) Analysis for Top 10 innovators shows that Airwalk Communications and Qualcomm are the leader followed by Via Telecom and Lucent Technologies as of June 16, 2009. (Fig. 4.2) ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 11
12.
Fig. 4.1 Growth
trends for femto cell published patent applications ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 12
13.
Fig. 4.2 Top
10 assignees for femto cell published patent applications ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 13
14.
5. Software Radio
Patent Landscape Software radio system is a wireless communications system where components that have been implemented in HW are instead implemented using SW. Software Radio is a key technology for 4G mobile communications. Analysis for US patents issued before May 1, 2009 shows that there was a rapid increase in patent applications recently due to active technology innovations in 4G mobile communications. (Fig. 5.1) As for the issued patents, Harris Corporation is the leader followed by Ericsson and Motorola. (Fig 5.2) ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 14
15.
Fig. 5.1 Growth
trends for software radio published patent applications ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 15
16.
Fig. 5.2 Top
10 assignees for software radio cell published patent applications ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 16
17.
6. Mesh Networks
Patent Landscape Mesh networks is a key technology for wireless ad hoc networks connected to each other network nodes via multiple hops. Analysis for the top 10 assignees in US patents issued before May 1, 2009 shows that Mesh Networks Inc. is the leader followed by Harris, Microsoft, Nokia, and Cisco. (Fig 6.1) ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 17
18.
Fig. 6.1 Top
10 assignees for Mesh Networks issued patents ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 18
19.
Thank you!
• If you have any questions • please contact • Dr. Alex G. Lee • at alexglee@ techipm.com ©2009 TechIPm, LLC All Rights Reserved www.techipm.com 19