MULTI-MODE WLAN/PAN MAC

• US 20130259019A1
• Filed: 05/27/2013
• Published: 10/03/2013
• Est. Priority Date: 01/05/2004
• Status: Active Grant

• Current Assignee: Avago Technologies International Sales Pte Limited (Broadcom, Inc.)
• Original Assignee: Broadcom Corporation (Broadcom, Inc.)
• Inventors: Karaoguz, Jeyhan, Ojard, Eric J., Frank, Edward J.
• Granted Patent: US 9,668,299 B2
• Time in Patent Office: Days
• US Class Current: 370/338
• CPC Class Codes: H04W 74/00 Wireless channel access
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

A novel solution is presented in which a MAC (Medium Access Controller) is implemented that includes multiple functionality types. This MAC may include functionality supporting communication according to one or more of the IEEE 802.11 WLAN (Wireless Local Area Network) related standards and also to one or more of the standards generated by the IEEE 802.15.3 PAN (Personal Area Network) working group. By providing this dual functionality of a multi-mode WLAN/PAN MAC, a communication device may adaptively change the manner in which it communicates with other communication devices. For example, in an effort to maximize throughput and overall efficiency of communication within a communication system, certain of the various devices may change from using the WLAN related standards to using the PAN related standards, and vice versa, based on any one or more of a variety of operational parameters including system configuration.

Claims

1. A wireless communication device, comprising:

a processor configured to generate a first plurality of beacons based on a first wireless communication protocol and a second plurality of beacons based on a second wireless communication protocol; and

a communication interface configured to transmit the first plurality of beacons and the second plurality of beacons simultaneously to at least one wireless communication device.

2. The wireless communication device of claim 1, wherein the first wireless communication protocol is a piconet/PAN (Personal Area Network) communication protocol;

and

the second wireless communication protocol is a wireless local area network (WLAN/WiFi) communication protocol.

3. The wireless communication device of claim 1, wherein the communication interface is further configured to:

receive first communications from the at least one wireless communication device based on the first wireless communication protocol; and

receive second communications from the at least one wireless communication device or at least one additional wireless communication device based on the second wireless communication protocol.

4. The wireless communication device of claim 1, wherein the communication interface is further configured to:

receive first communications from the at least one wireless communication device based on the first wireless communication protocol that includes the at least one wireless communication device gaining communication medium access by carrier sense multiple access/collision avoidance (CSMA/CA); and

receive second communications from the at least one wireless communication device or at least one additional wireless communication device based on the second wireless communication protocol that includes operation the at least one wireless communication device or the at least one additional wireless communication device using at least one of plurality of assigned time slots for uplink communications to the wireless communication device.

5. The wireless communication device of claim 1, wherein the communication interface further comprises a PHY (PHYsical layer) transceiver that includes a first PHY transceiver portion configured to transmit the first plurality of beacons and a second PHY transceiver portion configured to transmit the first plurality of beacons;

and

the processor further comprises a MAC (Medium Access Controller), directly coupled to the PHY transceiver at a MAC/PHY interface, configured to generate the first plurality of beacons based on the first wireless communication protocol and the second plurality of beacons based on the second wireless communication protocol.

6. The wireless communication device of claim 1, wherein the wireless communication device and the at least one wireless communication device configured to make a symmetric key exchange to authenticate a secured relationship before supporting communications based on at least one of the first wireless communication protocol and the second wireless communication protocol.

7. The wireless communication device of claim 1, wherein the communication interface is further configured to support communications with the at least one wireless communication device or at least one additional wireless communication device based on a WMAN (Wireless Metropolitan Area Network) communication protocol.

8. The wireless communication device of claim 1, further comprising:

the wireless communication device including an access point (AP); and

the at least one wireless communication devices including a wireless station (STA).

9. A wireless communication device, comprising:

a processor configured to generate a first plurality of beacons based on a piconet/PAN (Personal Area Network) communication protocol and a second plurality of beacons based on a wireless local area network (WLAN/WiFi) communication protocol; and

a communication interface configured to;

transmit the first plurality of beacons and the second plurality of beacons simultaneously to a first wireless communication device;

support first communications with the first wireless communication device based on the piconet/PAN communication protocol; and

support second communications with the first wireless communication device or a second wireless communication device based on the WLAN/WiFi communication protocol.

10. The wireless communication device of claim 9, wherein the communication interface further comprises a PHY (PHYsical layer) transceiver that includes a first PHY transceiver portion configured to transmit the first plurality of beacons and a second PHY transceiver portion configured to transmit the first plurality of beacons;

and

the processor further comprises a MAC (Medium Access Controller), directly coupled to the PHY transceiver at a MAC/PHY interface, configured to generate the first plurality of beacons based on the piconet/PAN communication protocol and the second plurality of beacons based on the WLAN/WiFi communication protocol.

11. The wireless communication device of claim 9, wherein the wireless communication device and at least one of the first wireless communication device and the second wireless communication device configured to make a symmetric key exchange to authenticate a secured relationship before supporting communications based on at least one of the piconet/PAN communication protocol and the WLAN/WiFi communication protocol.

12. The wireless communication device of claim 9, wherein the communication interface is further configured to support communications with the first wireless communication device, the second wireless communication device, or a third wireless communication device based on a WMAN (Wireless Metropolitan Area Network) communication protocol.

13. The wireless communication device of claim 9, further comprising:

the wireless communication device including an access point (AP); and

the at least one wireless communication devices including a wireless station (STA).

14. A method for operating a first wireless communication device, the method comprising:

generating a first plurality of beacons based on a first wireless communication protocol;

generating a second plurality of beacons based on a second wireless communication protocol; and

via a communication interface of the first wireless communication device, transmitting the first plurality of beacons and the second plurality of beacons simultaneously to a second wireless communication device.

15. The method of claim 14, wherein the first wireless communication protocol is a piconet/PAN (Personal Area Network) communication protocol;

and

the second wireless communication protocol is a wireless local area network (WLAN/WiFi) communication protocol.

16. The method of claim 14, further comprising:

via the communication interface of the first wireless communication device, receiving first communications from the first wireless communication device based on the first wireless communication protocol; and

via the communication interface of the first wireless communication device, receiving second communications from the first wireless communication device or the second wireless communication device based on the second wireless communication protocol.

17. The method of claim 14, further comprising:

operating the second wireless communication device to gain communication medium access by carrier sense multiple access/collision avoidance (CSMA/CA);

via the communication interface of the first wireless communication device, receiving first communications from the first wireless communication device based on the first wireless communication protocol; and

via the communication interface of the first wireless communication device, receiving second communications from the second wireless communication device or a third wireless communication device based on the second wireless communication protocol during at least one of plurality of assigned time slots for uplink communications to the first wireless communication device.

18. The method of claim 14, wherein the communication interface further comprises a PHY (PHYsical layer) transceiver that includes a first PHY transceiver portion configured to transmit the first plurality of beacons and a second PHY transceiver portion configured to transmit the first plurality of beacons;

and

the wireless communication device also includes a MAC (Medium Access Controller), directly coupled to the PHY transceiver at a MAC/PHY interface, configured to generate the first plurality of beacons based on the first wireless communication protocol and the second plurality of beacons based on the second wireless communication protocol.

19. The method of claim 14, further comprising:

operating the communication interface of the first wireless communication device to support communications with the second wireless communication device or a third wireless communication device based on a WMAN (Wireless Metropolitan Area Network) communication protocol.

20. The method of claim 14, further comprising:

the first wireless communication device including an access point (AP); and

the second wireless communication devices including a wireless station (STA).