FKRC161636 Multi-standard remote radio Confidentiality letter Cover Letter(s)

Confidentiality Class External Confidentiality Label Document Type Ericsson Confidential Prepared By (Subject Responsible) EHUAYAN Hua Yang Document Number Exhibit 13 Approved By (Document Responsible) Checked Revision Date Reference TA8FKRC161636/287AB-FS161636 A 2023-06-19 Page 1 (1) Federal Communications Commission Authorization & Evaluation Division 7435 Oakland Mills Road Columbia, Maryland 21046, USA Attention: Equipment Authorization Branch Innovation, Science and Economic Development Canada Certification and Engineering Bureau 3701 Carling Avenue, Bldg.94 P.O. Box 11490, Station H Ottawa, Ontario K2H 8S2 Canada Subject: Request for Confidentiality To Whom It May Concern:

We, Ericsson AB, hereby request that the Exhibits/Items listed below be withheld from public inspection in accordance with Sections 0.457 and 0.459 of the Commissions rules for FCC and in accordance with RSP-

100 Section 12.4 for ISED. This due to the following reasons:

This Base Stations (BS) are designed strictly based on the technical specifications of the international project 3GPP (the 3rd Generation Partnership Project). The competition in this field is very intense and a less advanced solution/design could get an unfair advantage by accessing the information as listed below from common domain. As we believe that we have implemented groundbreaking solutions and designs into our recent BS/Radio Unit (RU) / Remote Radio Unit (RRU) / Radio DoT (RD) /Antenna Integrated Radio

(AIR) compared to the previous BS/RU/RRU/RD/AIR, the listed Exhibits/Items need to be protected from disclosure to our competitors in the industry. As the FCC/ISED records have in-depth information and a very wide distribution, we believe that you can understand our concerns. We are strong in our belief that all vendors in the industry need to compete by their own merits. We regard these Exhibits/Items to be our intellectual property and therefore as confidential information. There are advanced technical and design solutions/information in the Exhibits/Items, as mentioned above, that we regard as Ericsson proprietary, with actual and potential patents pending. The information can be advantageous to our competitors as well as sources seeking ways to hack past the built-in security functionality. These solutions or information thereof are not accessible even for our customers or partners unless non-disclosure agreements for particular item(s) have been signed. Confidential product information can be found in, but not necessarily limited to, internal photos of the BS, RU, RRU and RD, block diagrams, schematics diagrams, and parts lists as well as certain documents, such as the users manuals. Those documents can only be accessible by the customers who purchase our BS/RU/RRU/RD/AIR and accept the conditions and therefore are provided with unique information access tools. EXHIBIT 4 Block Diagrams EXHIBIT 8 Manuals EXHIBIT 10 Parts List EXHIBIT 5 Schematics EXHIBIT 9 Internal Photos EXHIBIT 12 Technical Circuit Description Hua Yang Staff Engineer, Regulatory Programs Ericsson AB Isafjordsgatan 10 Kista, SE-164 80 Stockholm, Sweden Telephone No.: +86 10 8476 7133 e-mail: hua.yang@ericsson.com