BLE link-cluster architecture
A device includes a BLUETOOTH low energy (BLE) link layer (LL) controller configured to maintain a link cluster including multiple links between the device and one or more connected devices that share parameters associated with the link cluster and to process data associated with the links of the link cluster at a LL. The links of the link cluster established according to a BLE communication standard. The device further includes or is coupled to BLE physical link (PHY) interfaces coupled to the BLE LL controller and configured to exchange the data on different links of the link cluster at different respective signal frequencies, interface with the BLE LL controller, and process the data at a PHY layer.
1 . A method comprising:
maintaining, by a first wireless device, a link cluster that includes first and second communication links between the first wireless device and a second wireless device;
exchanging data between the first and second wireless devices using the first communication link at a first frequency, and using the second communication link at a second frequency different from the first frequency, wherein the exchange of data between the first and second wireless devices using the first and second communication link occurs in parallel; and
coordinating and synchronizing transmission and reception of frames of the data on the first and second communication links;
simultaneously transmitting, receiving or transmitting and receiving the frames on the first and second communication links;
fragmenting and reassembling the frames on the first and second communication links;
duplicating the frames and detecting duplicated frames on the first and second communication links;
dynamically switching the frames on the first and second communication links; or
retransmitting the frames on the first and second communication links.
2 . The method of claim 1 , wherein exchanging data between the first and second wireless devices comprises:
transmitting, by the first wireless device to the second wireless device, first data using the first communication link at the first frequency; and
transmitting, by the first wireless device to the second wireless device, second data using the second communication link at the second frequency.
3 . The method of claim 2 , wherein the second data is a replica of the first data.
4 . The method of claim 1 , wherein exchanging data between the first and second wireless devices comprises transmitting, by the first wireless device to the second wireless device, first and second portions of the data using the first and second communication links, respectively.
5 . The method of claim 1 , wherein the first and second communication links are established according to a BLUETOOTH low energy (BLE) standard.
6 . The method of claim 1 , wherein exchanging data between the first and second wireless devices comprises:
receiving, by the first wireless device from the second wireless device, first data using the first communication link at the first frequency; and
receiving, by the first wireless device from the second wireless device, second data using the second communication link at the second frequency.
7 . The method of claim 6 , wherein the second data is a replica of the first data.
8 . The method of claim 1 , wherein exchanging data between the first and second wireless devices comprises receiving, by the first wireless device from the second wireless device, first and second portions of the data using the first and second communication links, respectively.
9 . The method of claim 1 , wherein the first wireless device operates as a peripheral device of a first network, and the second wireless device operates as a central device of the first network.
10 . The method of claim 9 , further comprising exchanging further data between the first wireless device and a third wireless device, wherein the first wireless device operates as a central device in a second network, and the third wireless device operates as a peripheral device in the second network.
11 . The method of claim 9 , further comprising exchanging further data between the first wireless device and a third wireless device, wherein the first wireless device operates as a peripheral device in a second network, and the third wireless device operates as a central device in the second network.
12 . The method of claim 11 , further comprising exchanging yet further data between the third wireless device and a fourth wireless device, wherein the third wireless device operates as a peripheral device in a third network, and the fourth wireless device operates as a central device in the third network.
13 . The method of claim 11 , further comprising exchanging yet further data between the third wireless device and a fourth wireless device, wherein the third wireless device operates as a central device in the second network, and the fourth wireless device operates as a peripheral device in the second network.
14 . The method of claim 1 , further comprising exchanging further data between the first wireless device and a third wireless device using a third communication link at a third frequency different from the first and second frequencies.
15 . The method of claim 14 , wherein exchanging the further data between the first and third wireless devices further comprises using a fourth communication link at a fourth frequency different from the first, second, and third frequencies.
16 . The method of claim 15 , further comprises exchanging yet further data between the second and third wireless devices using a fifth communication link at a fifth frequency different from the first, second, third, and fourth frequencies, and using a sixth communication link at a sixth frequency different from the first, second, third, fourth, and fifth frequencies.
17 . The method of claim 1 , wherein the first wireless device comprises a link layer controller that maintains the link cluster between the first and second wireless devices, and wherein first and second transceivers respectively provide first and second physical layer interfaces to the link layer controller and establish the first and second communications links, respectively.
18 . The method of claim 17 , wherein the first and second transceivers provide the first and second physical layer interfaces to the link layer controller via a network that includes one or more wireless devices.
19 . The method of claim 18 , wherein the link layer controller operates as a central link layer controller, and wherein the first and second transceivers include first and second link layer interfaces.
20 . The method of claim 1 , wherein the first wireless device comprises a link layer controller that maintains the link cluster between the first and second wireless devices, and a transceiver that uses a single antenna to communicate with the second wireless device using the first and second communication links.
21 . The method of claim 20 , wherein the transceiver comprises first and second physical layer interfaces for exchanging the data using the first and second communication links, respectively.
22 . The method of claim 20 , wherein the first wireless device comprises:
first and second radio-frequency (RF) front end circuits for exchanging the data using the first and second communication links, respectively; and
a single physical layer interface coupled to the first and second RF front end circuits.
23 . The method of claim 22 , wherein the first and second RF front end circuits share a power amplifier coupled to the single antenna, and a low-noise amplifier coupled to the single antenna.
24 . The method of claim 1 , wherein the first wireless device further comprises:
an application layer circuit that process the data at an application layer;
a host layer circuit that manages host device functions and interfaces with the application layer circuit; and
a host to controller interface (HCI/IF) that provides a communication interface between the host layer circuit and a link layer controller of the first wireless device.