System and method for coordinating multiple radio transceivers within the same device platform

Patent metadata

Field	Value
Publication number	US-9232443-B2
Application number	US-201414200398-A
Country	US
Kind code	B2
Filing date	Mar 7, 2014
Priority date	Jun 18, 2010
Publication date	Jan 5, 2016
Grant date	Jan 5, 2016

Abstract

A wireless device having a central control entity that coordinates multiple radio transceivers co-located within the same device platform to mitigate coexistence interference. The wireless device comprises an LTE transceiver, a WiFi transceiver, a BT transceiver, or a GNSS receiver. In one embodiment, the central control entity receives radio signal information from the transceivers and determines control information. The control information is used to trigger FDM solution such that the transceivers operate in designated frequency channels to mitigate co-existence interference. In another embodiment, the central control entity receives traffic and scheduling information from the transceivers and determines control information. The control information is used to trigger TDM solution such that the transceivers are scheduled for transmitting or receiving radio signals over specific time duration to mitigate co-existence interference. In yet another embodiment, power control solution is used to mitigate coexistence interference.

First claim

What is claimed is:

1. A method comprising:
receiving a first radio signal information from a first control entity, wherein the first control entity belongs to a first LTE radio transceiver;
receiving a second radio signal information from a second control entity, wherein the second control entity belongs to a second transceiver co-located with the first LTE radio transceiver;
determining, based on the first and the second radio signal information, control information to be sent to the first and the second control entity, wherein the first and the second radio transceivers operate in designated frequency channels based at least in part on the control information and thereby mitigating co-existence interference; and
sending a co-existence interference indication to an LTE base station through the first LTE radio transceiver based on at least on the determined control information, wherein the co-existence interference indication is one selected from an indication group comprising: an indication indicates a downlink reception problem due to coexistence interference, an indication indicates which frequency channels suffer significant coexistence interference, and an indication indicates a request for handover from a first RF carrier to a second RF carrier.

2. The method of claim 1 , wherein the second transceiver is a WiFi transceiver, and wherein the control information contains instruction or recommendation of a new WiFi frequency channel for the second WiFi transceiver.

3. The method of claim 1 , wherein the second transceiver is a Bluetooth (BT) transceiver, and wherein the control information contains instruction to adjust frequency-hopping range for the second BT transceiver.

4. The method of claim 1 , wherein the first and the second radio signal information comprises at least one of coexistence interference measurement information, transmission time information, received signal quality information, transmission status information, LTE serving frequency information, WiFi frequency channel information, BT frequency-hopping range information, and center frequency information of GNSS signal.

5. The method of claim 1 , wherein the control information comprises a maximum power restriction level for the first LTE radio transceiver.

6. A wireless communication device, comprising:
a first control entity belongs to a first LTE radio transceiver;
a co-located second control entity belongs to a co-located second radio transceiver; and
a central control entity that receives radio signal information from the first and the second control entities, wherein the central control entity determines control information to be sent to the first and the second control entities, and instructs the first LTE radio transceiver to send a co-existence interference indication to an LTE base station based at least on the control information, and wherein the first and the second radio transceivers operate in designated frequency channels based at least in part on the control information and thereby mitigating co-existence interference, and wherein the co-existence interference indication is one selected from an indication group comprising: an indication indicates a downlink reception problem due to coexistence interference, an indication indicates which frequency channels suffer significant coexistence interference, and an indication indicates a request for handover from a first RF carrier to a second RF carrier.

7. The wireless communication device of claim 6 , wherein the second radio transceiver is a WiFi transceiver, and wherein the control information contains instruction or recommendation of a new WiFi frequency channel for the second WiFi transceiver.

8. The wireless communication device of claim 6 , wherein the second radio transceiver is a Bluetooth (BT) transceiver, and wherein the control information contains instruction to adjust frequency-hopping range for the second BT transceiver.

9. The wireless communication device of claim 6 , wherein the first and the second radio signal information comprises at least one of coexistence interference measurement information, transmission time information, received signal quality information, transmission status information, LTE serving frequency information, WiFi frequency channel information, BT frequency-hopping range information, and center frequency information of GNSS signal.

10. The wireless communication device of claim 6 , wherein the control information comprises a maximum power restriction level for the first LTE radio transceiver.

Assignees

• Mediatek Inc

Inventors

• Fu I-Kang
• Ko Li-Chun
• Lee Chi-Chen
• Ye Huanchun
• Hsu Hong-Kai
• Plumb William

Classifications

• H04B2215/068

  by avoiding a reception frequency range · CPC title

• H04B1/406 Primary

  with more than one transmission mode, e.g. analog and digital modes · CPC title

• H04W36/0005 Primary

  Control or signalling for completing the hand-off · CPC title

• H04W36/1446

  wherein at least one of the networks is unlicensed · CPC title