EXHIBIT 8
1 

U.S. Patent No. 9,124,558 

LG Stylo 6 
US Patent No. 9,124,558: Claim 5 

“5 [preamble]. A communication device utilized in a wireless communication system for correctly handling d

packet data convergence protocol (PDCP) layer upon handover, the communication device compr

2 

“5 [preamble]. A communication device utilized in a wireless communication system for correctly handling data decryption in a packet data convergence protocol (PDCP) layer upon handover, the communication device comprising:” 

To the extent the preamble is limiting, LG’s Stylo 6 is a communication device uticommunication system for correctly handling data decryption in a packet data conv(PDCP) layer upon handover. See U.S. Patent No. 9,124,558 col. 6 l. 9-12 (filed OThe Stylo 6 is a device for communicating over a cellular network whereby a handthe PDCP when decrypting data packets from the source base station. Further, the decrypts user plane or control plane packet data, and the handover procedure uses decrypted data to perform handover of user equipment from a source base station. 
US Patent No. 9,124,558: Claim 5 

“5 [a]. a control circuit for realizing functions of the communications device;” 

3 

“5 [a]. a control circuit for realizing functions of the communications device;” 

LG’s Stylo 6 contains a control circuit for realizing functions of the communicationpatent col. 6 l. 13-14. The Stylo 6 comprises a MediaTek Helio P35 Octa Core processor, which is a contrrealizing functions of the communication device. LG, LG Stylo 6 Specifications & Features 3 (2020), https://www.lg.com/us/support/products/documents/LGSpecSheet_RegionalCarriers_Stylo%206_082720.pdf. 
US Patent No. 9,124,558: Claim 5 

“5 [b]. a processor installed in the control circuit; and” 

4 

“5 [b]. a processor installed in the control circuit; and” 

LG’s Stylo 6 contains a processor installed in the control circuit. See ’558 patent colThe control circuit MediaTek Helio P35 Octa Core processor has an installed proces
US Patent No. 9,124,558: Claim 5 

“5 [c]. a storage device installed in the control circuit and coupled to the processor;” 

“5 [d]. wherein the processor executes a program code stored in memory to:” 

5 

“5 [c]. a storage device installed in the control circuit and coupled to the processor; 5 [d]. wherein the processor executes a program code stored in memory to:” 

LG’s Stylo 6 contains a storage device installed in the control circuit and coupled to 

’558 patent col. 6 l. 16-17. The Stylo 6 comprises an eMMC 5.1 memory installed in the control circuit and coprocessor, wherein the processor executes code. 
US Patent No. 9,124,558: Claim 5 

“5 [e]. initiate a handover procedure from a source base station to a target base station;” 

6 

“5 [e]. initiate a handover procedure from a source base station to a target base station;” 

LG’s Stylo 6 executes a program code that initiates a handover procedure from a starget base station. See ’558 patent col. 6 l. 20-21. The Stylo 6 is capable of receiving a RRCConnectionReconfiguration message. Af

RRCConnectionReconfiguration message, the Stylo 6 initiates a handover procedu

station to a target base station. 
US Patent No. 9,124,558: Claim 5 

“5 [f]. use security variables corresponding to a source base station to decipher packets received from the sourc

7 

“5 [f]. use security variables corresponding to a source base station to decipher packets received from the source base station; and” 

LG’s Stylo 6 executes a program code that uses security variables corresponding tstation to decipher packets received from the source base station. See ’558 patent 

The Stylo 6 is capable of using the Next_PDCP_RX_SN and RX_HFN security v

data packets after it reestablishes the PDCP during handover. These security variavariables used to process previous packets from the source base station. 
US Patent No. 9,124,558: Claim 5 

“5 [g]. reset the security variables after using the security variables to decipher all the data packets received fr

station;” 

8 

“5 [g]. reset the security variables after using the security variables to decipher all the data packets received from the source base station;” 

LG’s Stylo 6 executes a program code that resets the security variables after using variables to decipher all the data packets received from the source base station. Se

25-27. The Stylo 6 is capable of resetting the security variables Next_PDCP_RX_SN and after the PDCP Data PDUs are processed once the Stylo 6 reestablished the PDCP Bearers in response to reception of the RRCConnectionReconfiguration message. 
US Patent No. 9,124,558: Claim 5 

“5 [h] wherein the security variables comprise a next PDCP receiver sequence number (Next_PDCP_RX_S

hyperframe number (RX_HFN).” 

9 

“5 [h] wherein the security variables comprise a next PDCP receiver sequence number (Next_PDCP_RX_SN) and a receiver hyperframe number (RX_HFN).” 

LG’s Stylo 6 executes a program code wherein the security variables comprise a sequence number (Next_PDCP_RX_SN) and a receiver hyperframe number (RXpatent col. 6 l. 28-30. As noted above, the security variable that the Stylo 6 is capable of resetting to zeNext_PDCP_RX_SN and RX_HFN security variables.