Systems and methods for improved data speeds for wireless devices

Patent metadata

Field	Value
Publication number	US-9485697-B1
Application number	US-201514836425-A
Country	US
Kind code	B1
Filing date	Aug 26, 2015
Priority date	Aug 26, 2015
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

A system and method for improving the user experience with a mobile wireless device by reconnecting to a faster speed connection after being rejected for the higher speed by an overloaded cell before expiration of a de-prioritization timer when the mobile wireless device travels away from the overloaded cell. In an embodiment, a method includes receiving from the first cell a connection rejection instructing the mobile wireless device to de-prioritize one or more frequencies of the first connection technology and a de-prioritization timer indicating a time period for the frequencies to remain de-prioritized; determining that the mobile wireless device has left the coverage area of the first cell; and connecting to a second cell of the telecommunication network via a connection in the one or more frequencies of the first connection technology prior to the expiration of the de-prioritization timer.

First claim

What is claimed is:

1. A method performed by a mobile wireless device for connecting to a telecommunication network, comprising:
sending a request to connect to a first cell of the telecommunication network, wherein the first cell implements a first connection technology;
receiving from the first cell a connection rejection comprising a de-prioritization request, the de-prioritization request instructing the mobile wireless device to de-prioritize one or more frequencies of the first connection technology and comprising a de-prioritization timer indicating a time period for the one or more frequencies to remain de-prioritized;
in response to the de-prioritization request, connecting to the telecommunication network via a connection of a second connection technology, wherein the connection of the second connection technology is of a higher priority than the de-prioritized one or more frequencies of the first connection technology but is of a lower data rate compared to the one or more frequencies of the first connection technology;
determining that the mobile wireless device has left a coverage area of the first cell; and
connecting to a second cell of the telecommunication network via a connection using one of the one or more frequencies of the first connection technology prior to an expiration of the de-prioritization timer.

2. The method of claim 1 , wherein the step of determining that the mobile wireless device has left the coverage area of the first cell comprises determining that the mobile wireless device has traveled a predetermined distance from the first cell.

3. The method of claim 1 , wherein the step of determining that the mobile wireless device has left the coverage area of the first cell comprises a determination of M consecutive different cell changes, M consecutive reselections, M consecutive handovers, or M consecutive base station (BS) changes, wherein M is a predefined integer.

4. The method of claim 1 , wherein the step of determining that the mobile wireless device has left the coverage area of the first cell comprises determining a geographical region (GEO) change.

5. The method of claim 1 , further comprising connecting via a first connection speed responsive to a determination of a registration zone change, a routing area change, a location area change, a system identification number (SID) change, or a network identification number (NID) change.

6. The method of claim 1 , further comprising: receiving a detection criteria from the first cell, wherein the step of determining that the mobile wireless device has left the coverage area of the first cell comprises determining that the mobile wireless device has left the coverage area of the first cell according to the detection criteria received from the first cell.

7. The method of claim 1 , wherein the timer is a first timer, further comprising:
connecting via a first connection speed responsive to a determination that the mobile wireless device has left the coverage area of the first cell and a determination that a second timer has expired; and
refraining from connecting via the first connection speed and clearing the second timer responsive to a determination that the mobile wireless device travels back to an area covered by the first cell prior to the expiration of the second timer.

8. The method of claim 1 , wherein the connection rejection comprises an RRCConnectionReject message comprises a de-prioritization request type and the de-prioritization timer, wherein the de-prioritization request type indicates that the mobile wireless device is to de-prioritize a current carrier frequency or radio access technology (RAT), and wherein the de-prioritization timer indicates a period for which the current carrier frequency or the RAT is to be de-prioritized.

9. A mobile wireless device, comprising:
a processor; and
a non-transitory computer readable storage medium storing programming for execution by the processor, the programming including instructions to:
send a request to connect to a first cell of a telecommunication network, wherein the first cell implements a first connection technology;
receive from the first cell a connection rejection comprising a de-prioritization request, the de-prioritization request instructing the mobile wireless device to de-prioritize one or more frequencies of the first connection technology and comprising a de-prioritization timer indicating a time period for the one or more frequencies to remain de-prioritized;
connect to the telecommunication network via a connection of a second connection technology in response to the de-prioritization request, wherein the connection of the second connection technology is of a higher priority than a de-prioritized frequency range of the first connection technology but is of a lower data rate compared to the one or more frequencies of the first connection technology;
determine that the mobile wireless device has left a coverage area of the first cell; and
connect to a second cell of the telecommunication network via a connection in the one or more frequencies of the first connection technology prior to an expiration of the de-prioritization timer.

10. The mobile wireless device of claim 9 , wherein the instructions to determine that the mobile wireless device has left the coverage area of the first cell comprises instructions to determine that the mobile wireless device has traveled a predetermined distance from the first cell.

11. The mobile wireless device of claim 9 , wherein the instructions to determine that the mobile wireless device has left the coverage area of the first cell comprises instructions to determine one of M consecutive different cell changes, M consecutive reselections, M consecutive handovers, or M consecutive base station (BS) changes, wherein M is a predefined integer.

12. The mobile wireless device of claim 9 , wherein the instructions to determine that the mobile wireless device has left the coverage area of the first cell comprises instructions to determine a geographical region (GEO) change.

13. The mobile wireless device of claim 9 , the programming further comprising instructions to connect via a first connection speed responsive to a determination of a registration zone change, a routing area change, a location area change, a system identification number (SID) change, or a network identification number (NID) change.

14. The mobile wireless device of claim 9 , the programming further comprising instructions to: receive a detection criteria from the first cell, wherein the instructions to determine that the mobile wireless device has left the coverage area of the first cell comprises instructions to determine that the mobile wireless device has left the coverage area of the first cell according to the detection criteria received from the first cell.

15. The mobile wireless device of claim 9 , wherein the timer is a first timer, the programming further comprising instructions to:
connect via a first connection speed responsive to a determination that the mobile wireless device has left the coverage area of the first cell and a determination that a second timer has expired; and
refrain from connecting via the first connection speed and clear the second timer responsive to a determination that the mobile wireless device travels back to an area covered by the first cell prior to the expiration of the second timer.

16. The mobile wireless device of claim 9 , wherein the connection rejection comprises an RRCConnectionReject message comprising a de-prioritization request type and the de-prioritization timer, wherein the de-priori

Assignees

• Futurewei Technologies Inc

Inventors

• Wang Julia
• Nader Navid
• Jia Zhiping

Classifications

• H04W48/20

  Selecting an access point · CPC title

• H04W36/04

  Reselecting a cell layer in multi-layered cells · CPC title

• H04W76/27

  Transitions between radio resource control [RRC] states · CPC title

• H04W36/22

  for handling the traffic · CPC title

• H04W76/18 Primary

  Management of setup rejection or failure · CPC title