Wireless device communication using carrier priority

Patent metadata

Field	Value
Publication number	US-9485702-B1
Application number	US-201313875131-A
Country	US
Kind code	B1
Filing date	May 1, 2013
Priority date	May 1, 2013
Publication date	Nov 1, 2016
Grant date	Nov 1, 2016

Abstract

In systems and methods of wireless device communication using carrier priority, it is determined for a wireless device using a lower priority carrier that a signal strength of a higher priority carrier meets a signal strength criteria. It is further determined that a loading of the higher priority carrier meets a loading criteria. When the loading meets the loading criteria and the signal strength meets the signal strength criteria, a handover is performed of the wireless device from the lower priority carrier to the higher priority carrier.

First claim

What is claimed is:

1. A method of wireless device communication, comprising:
exchanging loading information between a first access node controlled by a first network operator and a neighboring access node controlled by a second network operator, the loading information being associated with a plurality of wireless devices communicating with the first access node using a first spectrum carrier and the neighboring access node using a second spectrum carrier;
starting a timer at the first access node for a period of time;
after the timer expires, determining that a maximum permitted delay of one or more wireless devices communicating with the first access node using the first spectrum carrier meets a priority associated with the second spectrum carrier of the neighboring access node, wherein the second spectrum carrier has a higher priority than the first spectrum carrier and comprises greater structure penetration characteristics than the first spectrum carrier, wherein the structure penetration characteristics of the first spectrum carrier and the second spectrum carrier are based on a throughout to the one or more wireless devices, an available modulation and coding scheme (MCS), and a location of the one or more wireless devices;
determining, at the first access node, that a loading of the second spectrum carrier meets an overload criteria, the overload criteria being based on a capacity of the second spectrum carrier to support the one or more wireless devices communicating with the first access node using the first spectrum carrier and historical loading information of the second spectrum carrier; and
performing a handover of the one or more wireless devices communicating with the first access node using the first spectrum carrier from the first spectrum carrier to the second spectrum carrier of the neighboring access node when a signal strength of the second spectrum carrier meets a signal strength criteria.

2. The method of claim 1 , wherein the first spectrum carrier comprises a first frequency associated with the first network operator and the second spectrum carrier comprises a second frequency associated with the second network operator.

3. The method of claim 1 , wherein the second spectrum carrier comprises a lower multipath interference than the first spectrum carrier.

4. The method of claim 1 , wherein the second spectrum carrier comprises greater throughput characteristics than the first spectrum carrier, wherein the throughput characteristics of the first spectrum carrier and the second spectrum carrier are based on at least one of the available MCS, a number of bandwidth divisions, and a multiple input-multiple output (MIMO) communication type.

5. The method of claim 1 , wherein determining that the loading of the second spectrum carrier meets the overload criteria further comprises determining that a handover failure metric does not meet a handover failure criteria.

6. The method of claim 1 , wherein determining that the loading of the second spectrum carrier meets the overload criteria further comprises determining that a dropped call metric does not meet a dropped call criteria.

7. A system for wireless device communication, comprising:
a processing node configured to:
exchange loading information between a first access node controlled by a first network operator and a neighboring access node controlled by a second network operator, wherein the loading information is associated with a plurality of wireless devices communicating with the first access node using a first spectrum carrier and the neighboring access node using a second spectrum carrier;
start a timer at the first access node for a period of time;
after the timer expires, determine a maximum permitted delay of one or more wireless devices communicating with the first access node using the first spectrum carrier meets a priority associated with the second spectrum carrier of the neighboring access node, wherein the second spectrum carrier has a higher priority than the first spectrum carrier and comprises greater structure penetration characteristics than the first spectrum carrier, wherein the structure penetration characteristics of the first spectrum carrier and the second spectrum carrier are based on a throughput to the one or more wireless devices, an available modulation and coding scheme (MCS), and a location of the one or more wireless devices;
determine that a loading of the second spectrum carrier meets an overload criteria, the overload criteria being based on a capacity of the second spectrum carrier to support the one or more wireless devices communicating with the first access node using the first spectrum carrier and historical loading information of the second spectrum carrier; and
perform a handover of the one or more wireless device communicating with the first access node using the first spectrum carrier from the first spectrum carrier to the second spectrum carrier of the neighboring access node when a signal strength of the second spectrum carrier meets a signal strength criteria.

8. The system of claim 7 , wherein the first spectrum carrier comprises a first frequency associated with the first network operator and the second spectrum carrier comprises a second frequency associated with the second network operator.

9. The system of claim 7 , wherein the second spectrum carrier comprises a lower multipath interference than the first spectrum carrier.

10. The system of claim 7 , wherein the second spectrum carrier comprises greater throughput characteristics than the first spectrum carrier, wherein the throughput characteristics of the first spectrum carrier and the second spectrum carrier are based on at least one of the available MCS, a number of bandwidth divisions, and a multiple input-multiple output (MIMO) communication type.

11. The system of claim 7 , wherein determining that the loading of the second spectrum carrier meets the overload criteria further comprises determining that a handover failure metric does not meet a handover failure criteria.

12. The system of claim 7 , wherein determining that the loading of the second spectrum carrier meets the overload criteria further comprises determining that a dropped call metric does not meet a dropped call criteria.

Assignees

• Sprint Spectrum Lp
• Sprint Spectrum Lp

Inventors

• Chindapol Aik
• Liu Chunmei
• Naim Muhammad
• Zhou Yu

Classifications

• H04W36/30 Primary

  by measured or perceived connection quality data · CPC title

• H04W36/305 Primary

  Handover due to radio link failure (control signalling for hand-off failure H04W36/0079) · CPC title