Granted Patent B2

US 12,641,518 · App. 18/229,191 · Granted May 26, 2026

Inventors: Jun-Jie Qin (Suzhou, CN); Hong-Feng Shi (Suzhou, CN); Quan Yang (Suzhou, CN)

Assignee: REALTEK SEMICONDUCTOR CORPORATION

H04W40/22H04W84/12

Abstract

Claims (29)

1 . A wireless communication device, comprising:

a packet transceiver circuit; and

a computing circuit coupled to the packet transceiver circuit and configured

to control the packet transceiver circuit to send a first frame, wherein the first frame comprises a first receiver address, a first transmitter address, a first destination address, and a first source address, and

to control the packet transceiver circuit to receive a second frame, wherein the second frame comprises a second receiver address, a second transmitter address, a second destination address, and a second source address;

wherein the first frame is sent by the wireless communication device, and the second frame is received by the wireless communication device, and the first source address is identical to the second destination address, the second source address is identical to the first destination address, the first receiver address is identical to the second transmitter address, and the second receiver address is identical to the first transmitter address;

wherein before sending the first frame and receiving the second frame, the computing circuit is further configured

to control the packet transceiver circuit to send a first management frame, wherein the first management frame comprises a third receiver address, a third transmitter address, and a first basic service set identification (BSSID), and the third receiver address is a broadcast media access control address, the third transmitter address is a media access control address of the wireless communication device, and the first BSSID is the broadcast media access control address, and

to control the packet transceiver circuit to receive a second management frame, wherein the second management frame comprises a fourth receiver address, a fourth transmitter address, and a second BSSID, and the fourth receiver address is the media access control address of the wireless communication device;

wherein the fourth transmitter address, the first receiver address, and the second transmitter address are identical.

2 . The wireless communication device of claim 1 , wherein the first frame and the second frame are management frames of an 802.11 communication protocol.

3 . The wireless communication device of claim 1 , wherein the first source address and the second source address belong to a same distribution system.

4 . The wireless communication device of claim 1 , wherein the first receiver address and the second transmitter address are media access control addresses of a wireless repeater, the wireless communication device is connected to a wireless access point (AP) through the wireless repeater, the first frame and the second frame are part of a key negotiation procedure, and the key negotiation procedure derives a pairwise transient key between the wireless communication device and the wireless AP.

5 . The wireless communication device of claim 4 , wherein the first frame further comprises a first data, the second frame further comprises a second data, and the first data and the second data are data encrypted with the pairwise transient key.

6 . A wireless repeater in communication with a wireless communication device and a wireless access point (AP), the wireless repeater comprising:

a packet transceiver circuit; and

a computing circuit coupled to the packet transceiver circuit and configured

to control the packet transceiver circuit to receive a first frame from the wireless communication device or the wireless AP, wherein the first frame comprises a first receiver address, a first transmitter address, a first destination address, and a first source address, and

to control the packet transceiver circuit to send a second frame to the wireless AP or the wireless communication device, wherein the second frame comprises a second receiver address, a second transmitter address, a second destination address, and a second source address;

wherein the first frame is received by the wireless repeater, and the second frame is sent by the wireless repeater, and the first source address is identical to the second source address, the first destination address is identical to the second destination address, and the first receiver address is identical to the second transmitter address;

wherein before receiving the first frame and sending the second frame, the computing circuit is further configured

to control the packet transceiver circuit to receive a first management frame from the wireless communication device, wherein the first management frame comprises a third receiver address, a third transmitter address, and a first basic service set identification (BSSID), and the third receiver address is a broadcast media access control address, the third transmitter address is a media access control address of the wireless communication device, and the first BSSID is the broadcast media access control address, and

to control the packet transceiver circuit to send a second management frame to the wireless communication device, wherein the second management frame comprises a fourth receiver address, a fourth transmitter address, and a second BSSID, and the fourth receiver address is the media access control address of the wireless communication device;

wherein the fourth transmitter address, the first receiver address, and the second transmitter address are identical.

7 . The wireless repeater of claim 6 , wherein the first frame and the second frame are management frames of an 802.11 communication protocol.

8 . The wireless repeater of claim 6 , wherein the first source address and the first destination address belong to a same distribution system.

9 . The wireless repeater of claim 6 , wherein the first frame further comprises a first data, the second frame further comprises the first data, the first data is a data encrypted with a pairwise transient key, and the pairwise transient key is a key between the wireless communication device and the wireless AP.

10 . The wireless repeater of claim 9 , wherein the wireless repeater does not decrypt the first data.

11 . The wireless repeater of claim 6 , wherein the first transmitter address is different from the second receiver address.

Assignments (1)

Priority Claims (1)

Continuity (1)

References Cited (13)