Wireless communication system to redirect use equipment (UE) from a wireless relay to a donor base station

Patent metadata

Field	Value
Publication number	US-10028186-B1
Application number	US-201715469269-A
Country	US
Kind code	B1
Filing date	Mar 24, 2017
Priority date	Mar 24, 2017
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

A wireless communication network to redirect User Equipment (UE) to a donor base station, wherein the donor base station wirelessly serves a wireless relay and the UE, and the wireless relay wirelessly serves the UE. The wireless relay wirelessly exchanges user data with the UE using an established data bearer. The wireless relay detects that the data bearer is a Guaranteed Bit Rate (GBR) data bearer and in response, determines that the GBR data bearer is associated with a delay measurement that exceeds a delay measurement threshold. The wireless relay identifies a UE location and UE management data and determines that the donor base station is capable of serving the UE based on the UE location and the UE management data. The wireless relay wirelessly transfers an instruction to the UE redirecting the UE to exchange additional user data with the donor base station.

First claim

What is claimed is:

1. A method of operating a wireless communication network to redirect User Equipment (UE) that is served by a wireless relay and that is located at a UE location, the method comprising:
the wireless relay wirelessly exchanging user data with the UE using a Guaranteed Bit Rate (GBR) data bearer;
a Mobility Management Entity (MME) selecting donor base stations based on the UE location and transferring a list of the donor base stations and donor base station locations for delivery to the wireless relay;
the wireless relay wirelessly receiving the list of donor base stations and the donor base station locations;
the wireless relay detecting that the GBR data bearer has a delay measurement that exceeds a delay measurement threshold, and in response, the wireless relay selecting one of the donor base stations from the list of donor base stations based on the UE location and the donor base station locations; and
the wireless relay wirelessly transferring an instruction to the UE redirecting the UE to exchange additional user data with the selected one of the donor base stations.

2. The method of claim 1 wherein the wireless relay comprises a Relay UE (RE) and a relay evolved NodeB (eNodeB).

3. The method of claim 1 wherein the wireless relay receiving the the list of the donor base stations and the donor base station locations from the MME comprises receiving a Non-Access Stratum (NAS) message.

4. The method of claim 1 wherein the wireless relay receiving the the list of the donor base stations and the donor base station locations from the MME over an S1-MME interface link.

5. The method of claim 1 wherein the GBR data bearer comprises a GBR Quality-of-Service (QoS) Class Identifier (QCI).

6. The method of claim 1 wherein the selected one of the donor base stations comprises a Long Term Evolution (LTE) evolved NodeB (eNodeB).

7. A wireless communication network to redirect User Equipment (UE) that is served by a wireless relay and that is located at a UE location, the wireless communication network comprising:
the wireless relay configured to wirelessly exchange user data with the UE using a Guaranteed Bit Rate (GBR) data bearer;
a Mobility Management Entity (MME) configured to select donor base stations based on the UE location and transfer a list of the donor base stations and donor base station locations for delivery to the wireless relay;
the wireless relay wirelessly configured to receive the list of the donor base stations and the donor base station locations;
the wireless relay configured to detect that the GBR data bearer has a delay measurement that exceeds a delay measurement threshold;
the wireless relay configured to select one of the donor base stations based on the UE location and the donor base station locations; and
the wireless relay configured to wirelessly transfer an instruction to the UE redirecting the UE to exchange additional user data with the selected one of the donor base stations.

8. The wireless communication network of claim 7 wherein:
the wireless relay comprises a Relay UE (RE) and a relay evolved NodeB (eNodeB).

9. The wireless communication network of claim 7 wherein the wireless relay
is configured to receive the list of the donor base stations and the donor base station locations from the MME in a Non-Access Stratum (NAS) message.

10. The wireless communication network of claim 7 wherein the wireless relay is configured to receive the the list of the donor base stations and the donor base station locations from the MME over an S1-MME interface link.

11. The wireless communication network of claim 7 wherein the GBR data bearer comprises a GBR Quality-of-Service (QoS) Class Identifier (QCI).

12. The wireless communication network of claim 7 wherein the selected one of the donor base stations comprises a Long Term Evolution (LTE) evolved NodeB (eNodeB).

Assignees

• Sprint Communications Co Lp

Inventors

• Marupaduga Sreekar

Classifications

• H04W36/26

  by agreed or negotiated communication parameters · CPC title

• H04W4/025 Primary

  using location based information parameters · CPC title

• H04W36/0027

  for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections · CPC title

• H04W84/047

  using dedicated repeater stations · CPC title

• H04W36/30

  by measured or perceived connection quality data · CPC title