System and method for signal boost in an LTE network

• US 9,867,190 B1
• Filed: 03/09/2017
• Issued: 01/09/2018
• Est. Priority Date: 03/09/2017
• Status: Active Grant

• Current Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Original Assignee: Verizon Patent and Licensing Incorporated (Verizon Communications Inc.)
• Inventors: Sinnaduray, David Sanjiv
• Primary Examiner(s): Rego, Dominic
• Application Number:
  US15/455,068
• Time in Patent Office: 306 Days
• Field of Search: 455522, 455 6711, 455 68- 70, 4551153, 370318
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04W 52/245 taking into account received signal strength
• CPC Class Codes: H04W 52/283 Power depending on the position of the mobile
• CPC Class Codes: H04W 56/0005 synchronizing of arrival of multiple uplinks
• CPC Class Codes: H04W 64/00 Locating users or terminals or network equipment for network management purposes, e.g. mobility management

Abstract

A method for improving LTE connectivity in known trouble areas is disclosed. The method includes receiving, at an eNodeB, a communication message from a mobile device and determining a first timing advance (TA) information associated with the communication message received from the mobile device. Based on the first TA information it is determined if the mobile device is located in an area susceptible to a communication failure. Upon determining that the mobile device is located in the area susceptible to the communication failure, messages are temporality transmitted from the eNodeB to the mobile device at an increased power level.

Claims

1. A method comprising:

receiving, at an eNodeB, a communication message from a mobile device;

determining a first timing advance (TA) information associated with the communication message received from the mobile device;

determining based on the first TA information if the mobile device is located in an area susceptible to a communication failure; and

upon determining that the mobile device is located in the area susceptible to the communication failure, temporality transmitting messages from the eNodeB to the mobile device at an increased power level.

2. The method of claim 1, wherein the communication message includes Physical Random Access Channel (PRACH) control plane messages.

3. The method of claim 1, wherein the communication message includes a Physical Uplink Shared Channel (PUSCH) user plane message.

4. The method of claim 1, wherein determining if the mobile device is located in the area susceptible to the communication failure includes comparing the first TA information with a TA information associated with an area susceptible to communication failure.

5. The method of claim 4, wherein the TA information associated with the area susceptible to the communication failure includes a first range of TA information having a lower limit and an upper limit.

6. The method of claim 4, wherein the TA information associated with the area susceptible to the communication failure is automatically determined by the eNodeB by examining a set of communication failures between the eNodeB and a set of communicatively connected mobile devices, identifying a TA range indicative of the set of communication failures and common to the set of communicatively connected mobile devices, and storing the TA range to a nonvolatile memory as the TA information associated with the area susceptible to the communication failure.

7. The method of claim 1, further comprising:

receiving Reference Signal Received Power (RSRP) information from the mobile device;

extracting signal power information from the RSRP information; and

determining based on the RSRP information that the mobile device is located in the area susceptible to the communication failure,

wherein temporarily transmitting messages from the eNodeB to the mobile device at the increased power level includes temporarily transmitting messages from the eNodeB to the mobile device at the increased power level based on the RSRP information.

8. The method of claim 1, further comprising upon determining that the mobile device is located in the area susceptible to communication failure, transmitting instructions directing the mobile device to transmit messages to eNodeB at an increased power level.

9. The method of claim 1, wherein the temporality transmitting messages from the eNodeB to the mobile device at an increased power level comprises:

determining whether the eNodeB is transmitting to the mobile device on a frequency at less than full power that the eNodeB is capable of transmitting;

responsive to the determining, directing the mobile device to accept transmission at a second frequency; and

transmitting on the second frequency at full power.

10. The method of claim 1 wherein the communication message comprises a voice call.

11. At least one non-transitory computer readable medium on which are stored instructions comprising instructions that when executed cause a programmable device to:

receive a communication message from a mobile device at an eNodeB;

determine a first timing advance (TA) information associated with the communication message received from the mobile device;

determine based on the first TA information if the mobile device is located in an area susceptible to communication failure; and

upon the determination that the mobile device is located in the area susceptible to communication failure, temporarily transmit messages from the eNodeB to the mobile device at an increased power level.

12. The computer readable medium of claim 11, wherein the communication message includes Physical Random Access Channel (PRACH) control plane messages.

13. The computer readable medium of claim 11, wherein:

the instructions further include instructions that when executed cause the programmable device to automatically determine by the eNodeB by examining a set of communication failures between the eNodeB and a set of communicatively connected mobile devices a TA range indicative of the set of communication failures and common to the set of communicatively connected mobile devices, and store the TA range to a nonvolatile memory as a threshold, and

to determine if the mobile device is located in an area susceptible to communication failure, the instructions include instructions that when executed cause the programmable device to determine if the mobile device is located in an area susceptible to communication failure by comparing the first TA information with the threshold.

14. The computer readable medium of claim 11, wherein to determine if the mobile device is located in an area susceptible to communication failure the instructions further include instructions that when executed cause the programmable device to evaluate whether the first TA exists in a first range of threshold indicative of the area susceptible to communication failure.

15. The computer readable medium of claim 11, wherein the instructions further include instructions that when executed cause the programmable device to:

receive Reference Signal Received Power (RSRP) information from the mobile device;

extract signal power information from the RSRP information; and

confirm based on RSRP information that the mobile device is located in the area susceptible to the communication failure,

wherein the instructions to temporarily transmit messages from the eNodeB to the mobile device at the increased power level includes instructions to temporarily transmit messages from the eNodeB to the mobile device at the increased power level based on the RSRP information.

16. The computer readable medium of claim 11, wherein the instructions further include instructions that when executed cause the programmable device to:

upon the determination that the mobile device is located in the area susceptible to communication failure, transmit instructions directing the mobile device to transmit at a third increased power level.

17. A device comprising:

a processor;

a wireless communication module communicatively coupled to the processor;

a memory, communicatively coupled to the processor on which are stored instructions that when executed configure the processor to;

receive a communication message from a mobile device at the wireless communication module;

determine a first timing advance (TA) information associated with the communication message received from the mobile device;

determine based on the first TA information that the mobile device is located in an area susceptible to communication failure; and

upon the determination that the mobile device is located in the area susceptible to communication failure, temporarily transmit messages from the wireless communication module to the mobile device at an increased power level.

18. The device of claim 17, wherein:

the memory further stores instructions that when executed configure the processor to automatically determine by examining a set of communication failures between the eNodeB and a set of communicatively connected mobile devices a TA range indicative of the set of communication failures and common to the set of communicatively connected mobile devices, and store the TA range to a nonvolatile memory as a threshold, and

to determine if the mobile device is located in the area susceptible to communication failure, the memory further stores instructions that when executed configure the processor to determine if the mobile device is located in an area susceptible to communication failure by comparing the first TA information with the threshold.

19. The device of claim 17, the memory further stores instructions that when executed configure the processor to:

receive reference signal received power (RSRP) information from the mobile device;

extract signal power information from the RSRP information; and

confirm based on the RSRP information that the mobile device is located in the area susceptible to the communication failure,

wherein the instructions to temporarily transmit messages from the eNodeB to the mobile device at the increased power level includes instructions to temporarily transmit messages from the eNodeB to the mobile device at the increased power level based on RSRP information.