SYSTEM AND METHOD FOR MANAGING COMMUNICATIONS FOR TWO NETWORKS IN A COMMUNICATION DEVICE

• US 20150036514A1
• Filed: 07/31/2013
• Published: 02/05/2015
• Est. Priority Date: 07/31/2013
• Status: Active Grant

• Current Assignee: Blackberry Limited
• Original Assignee: Blackberry Limited
• Inventors: Zhu, Lizhong, Wu, Yan, Zhou, Qingmai, Xu, Jun, Montemurro, Michael Peter, He, Fei, Zhang, Zongyou
• Granted Patent: US 9,749,878 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 52/18 TPC being performed according to specific parameters
• CPC Class Codes: H04W 52/244 Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
• CPC Class Codes: H04W 52/367 Power values between minimum and maximum limits, e.g. dynamic range
• CPC Class Codes: H04W 52/38 TPC being performed in particular situations
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• 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 system, method and device for adjusting communication parameters for networks communicating with a communication device are provided. The method comprises: when the communication device is linked to a first communication network and a second communication network, comparing a strength of received signals from the second network against a threshold; and when the strength of the received signals is less than the threshold, adjusting a network parameter of signals received from the second communication network by the communication device.

Claims

1. A method of adjusting communication parameters for networks communicating with a communication device, the method comprising:

when the communication device is linked to a first communication network and a second communication network,

comparing a strength of received signals from the second network against a threshold; and

when the strength of the received signals is less than the threshold, adjusting a network parameter of signals received from the second communication network by the communication device.

2. The method of adjusting communication parameters for networks as claimed in claim 1, wherein when the communication device is linked to the first communication network and the second communication network, the method further comprises:

when the strength of the received signals is greater than the threshold, not adjusting the network parameter of the signals received from the second communication network and not adjusting transmission parameters of signals transmitted to the first communication network.

3. The method of adjusting communication parameters for networks as claimed in claim 1, wherein:

the first network is a cellular network; and

the second network is a WLAN communication network.

4. The method of adjusting communication parameters for networks as claimed in claim 1, wherein:

the first network is a cellular network; and

the second network utilizes an industrial, scientific and medical (ISM) communication band.

5. The method of adjusting communication parameters for networks as claimed in claim 1, wherein:

the network parameter adjusts times when the received signals are monitored, utilizing a first time slot for processing communications for the first network and a second time slot for monitoring for the received signals, the second time slot not overlapping with the first time slot.

6. The method of adjusting communication parameters for networks as claimed in claim 5, wherein:

during the first time slot, the communication device does not monitor for the received signals.

7. The method of adjusting communication parameters for networks as claimed in claim 1, wherein:

the threshold comprises a required sensitivity level for signals at a data rate received from the second network at the communication device, a de-sense value of signals received from the second network due to interference of the first network and a factor incorporating operating conditions of the communication device.

8. The method of adjusting communication parameters for networks as claimed in claim 7, wherein:

the required sensitivity level for signals incorporates sensitivity data for a class of communication devices.

9. The method of adjusting communication parameters for networks as claimed in claim 7, wherein:

the de-sense value indicates a received signal sensitivity level for signals received from the second communication network.

10. The method of adjusting communication parameters for networks as claimed in claim 1, wherein when the communication device is linked to the first communication network and the second communication network, the method further comprises:

when the strength of the received signals is not greater than the threshold, adjusting a network parameter of signals received from the second communication network by the communication device.

11. The method of adjusting communication parameters for networks as claimed in claim 10, wherein:

the network parameter adjusts times when the received signals are monitored, utilizing a first time slot for processing communications for the first network and a second time slot for monitoring for the received signals, the second time slot not overlapping with the first time slot.

12. The method of adjusting communication parameters for networks as claimed in claim 11, wherein:

during the first time slot, the communication device does not monitor for the received signals.

13. The method of adjusting communication parameters for networks as claimed in claim 10, wherein when the communication device is linked to the first communication network and the second communication network, the method further comprises:

when the strength of the received signals is greater than the threshold, lowering a transmission power of signals sent to the second communication network.

14. The method of adjusting communication parameters for networks as claimed in claim 13, wherein when the communication device is linked to the first communication network and the second communication network, wherein:

the transmission power of signals sent to the second communication network is lowered by a factor accounting to specific absorption rate (SAR) limits.

15. A system for adjusting communication parameters for networks communicating with a communication device, the system comprising:

a processor;

a memory module for storing instructions for execution on the processor; and

a monitoring module for providing instructions for execution on the processor to monitor for when the communication device is linked to a first communication network and a second communication network and then

compare a strength of received signals from the second network against a threshold; and

when the strength of the received signals is less than the threshold, initiate an adjustment of a network parameter of signals received from the second communication network by the communication device.

16. The system for adjusting communication parameters for networks as claimed in claim 15, wherein when the strength of the received signals is greater than the threshold the monitoring module provides further instructions to the processor to not adjust the network parameter of the signals received from the second communication network and not adjusting transmission parameters of signals transmitted to the first communication network.

17. The system for adjusting communication parameters for networks as claimed in claim 15, wherein:

the network parameter adjusts times when the received signals are monitored, utilizing a first time slot for processing communications for the first network and a second time slot for monitoring for the received signals, the second time slot not overlapping with the first time slot.

18. The system for adjusting communication parameters for networks as claimed in claim 17, wherein:

during the first time slot, the communication device does not monitor for the received signals.

19. The system for adjusting communication parameters for networks as claimed in claim 15, wherein:

the first network is a cellular network; and

the second network is a WLAN communication network.

20. The system for adjusting communication parameters for networks as claimed in claim 15, wherein:

the threshold comprises a required sensitivity level for signals at a data rate received from the second network at the communication device, a de-sense value of signals received from the second network due to interference of the first network and a factor incorporating operating conditions of the communication device.