Permitting coexistence of data transfer of interferring wireless signals
View Patent ↗A system and method of permitting coexistence of WiFi and Bluetooth® data transfer on a single chip in UE including a transceiver includes using CTS data packets to protect Bluetooth® signals for SCO communication links; using only WiFi circuitry in the chip to determine when Bluetooth® data transfer is required by the UE; establishing a specified period of the Bluetooth® data transfer; and starting WiFi medium contention only upon an end of the specified period of the Bluetooth® data transfer on the single chip. The power save mode of the WiFi circuitry may be used with Bluetooth® ACL data packets in WiFi periodic data transfer gaps. The WiFi data transfer has no timing constraints, whereas the Bluetooth® data transfer has timing constraints and can only occur during the specified period. The WiFi data transfer does not occur when the Bluetooth® data transfer is occurring.
1. A method comprising:
using clear to send (CTS) data packets to protect signals of a first data transmission protocol for synchronous connection-oriented (SCO) communication links;
using a circuitry of a second data transmission protocol to determine when a data transfer of the first data transmission protocol is to be implemented;
establishing a period for the data transfer of the first data transmission protocol;
starting a medium contention of the second data transmission protocol upon an end of the period;
determining the circuitry of the second data transmission protocol has entered into a power save mode;
indicating, from the circuitry for the second data transmission protocol, to a router that a transceiver is entering into the power save mode; and
beginning, by the circuitry for the second data transmission protocol, asynchronous connection-less (ACL) data packet transmissions of the first data transmission protocol in periodic data transfer gaps of the second data transmission protocol during the power save mode,
wherein a data transfer of the second data transmission protocol has no timing constraints, and the data transfer of the first data transmission protocol has timing constraints and occurs during the period.
2. The method of claim 1 , wherein the data transfer of the second data transmission protocol does not occur when the data transfer of the first data transmission protocol is occurring.
3. The method of claim 1 , further comprising using the circuitry of the second data transmission protocol to determine when the period for the data transfer of the first data transmission protocol ends.
4. The method of claim 1 , wherein upon completion of the data transfer for the first data transmission protocol, the circuitry of the second data transmission protocol ending the power save mode by waking up and beginning the data transfer for the second data transmission protocol.
5. The method of claim 1 , further comprising using a sniff mode by a circuitry for the first data transmission protocol during the data transfer for the first data transmission protocol.
6. The method of claim 5 , wherein the circuitry for the first data transmission protocol indicates to a host device that the circuitry for the first data transmission protocol is in the sniff mode and will wake up once the circuitry for the second data transmission protocol causes the circuitry for the first data transmission protocol to wake up from the power save mode.
7. The method of claim 1 , wherein the signals for the first data transmission protocol and the second data transmission protocol are shared and coexist in a time domain.
8. A system comprising:
a circuitry for a second data transmission protocol,
wherein the circuitry for the second data transmission protocol is configured to use clear to send (CTS) data packets that protect signals of a first data transmission protocol for synchronous connection-oriented (SCO) communication links,
wherein the circuitry for the second data transmission protocol is configured to determine when a data transfer of the first data transmission protocol is implemented, and wherein the data transfer for the first data transmission protocol is to occur for a period; and
a data processing system including a processor and configured to cause the processor to:
calculate the period, wherein a medium contention of the second data transmission protocol is to begin upon an end of the period,
determine that the circuitry of the second data transmission protocol has entered into a power save mode,
indicate, from the circuitry for the second data transmission protocol, to a router that a transceiver is entering into the power save mode, and
begin, by the circuitry for the second data transmission protocol, asynchronous connection-less (ACL) data packet transmissions in periodic data transfer gaps of the second data transmission protocol during the power save mode,
wherein a data transfer of the second data transmission protocol has no timing constraints, and the data transfer of the first data transmission protocol has timing constraints and occurs during the period.
9. The system of claim 8 , wherein the data transfer of the second data transmission protocol does not occur when the data transfer of the first data transmission protocol is configured to occur.
10. The system of claim 8 , wherein the circuitry of the second data transmission protocol is configured to determine when the period for the data transfer of the first data transmission protocol ends.
11. The system of claim 8 , wherein upon completion of the data transfer of the first data transmission protocol, the circuitry of the second data transmission protocol is configured to end the power save mode by waking up and beginning the data transfer of the second data transmission protocol.
12. The system of claim 8 , further comprising a circuitry for the first data transmission protocol configured to use a sniff mode during data transfer of the first data transmission protocol.
13. The system of claim 12 , wherein the circuitry for the first data transmission protocol is configured to indicate to a host device that the circuitry of the first data transmission protocol is in the sniff mode and will wake up once the circuitry of the second data transmission protocol causes the circuitry of the first data transmission protocol to wake up from the power save mode.
14. The system of claim 8 , wherein the signals for the first and second data transmission protocols are shared and coexist in a time domain.
15. The method of claim 1 , wherein the first data transmission protocol is a Bluetooth protocol and the second data transmission protocol is a WiFi protocol.
16. The system of claim 8 , wherein the first data transmission protocol is a Bluetooth protocol and the second data transmission protocol is a WiFi protocol.
17. The method of claim 1 , wherein the signals of the first data transmission protocol is generated from circuitry for the first data transmission protocol, and wherein the circuitry of the second data transmission protocol and the circuitry of the first data transmission protocol are on a single chip comprising the transceiver.
18. The system of claim 8 , further comprising:
a circuitry for the first data transmission protocol in a chip comprising the transceiver, wherein the circuitry for the second data transmission protocol is in the chip.
19. The method of claim 1 , wherein establishing the period for the data transfer of the first data transmission protocol is based on durations of the CTS data packets.
20. The system of claim 8 , wherein the data transfer of the first data transmission protocol is established by durations of the CTS data packets.