# US 2014/0153397 A1 · Apparatus And Method For Controlling Traffic Flow In Backhaul Link In Wireless Communication Network

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- Number: US 2014/0153397 A1
- Document ID: US20140153397A1
- Status: Published application
- Kind: A1
- Application number: 14/177,085
- Filed: 2014-02-10
- Published: 2014-06-05
- Earliest claimed: 2007-09-07
- Assignees: WiChorus, Inc.
- Applicants: WiChorus Inc.
- Inventors: Mustafa Ergen; Pawan Uberoy; Rehan Jalil
- Web page: https://patentgrep.com/patent/US20140153397A1

## CPC

- H04W 28/0247: {based on conditions of the access network or the infrastructure network (central resource management H04W28/16)}
- H04L 47/70: Admission control; Resource allocation
- H04L 47/762: triggered by the network
- H04L 47/788: {Autonomous allocation of resources}
- H04L 47/822: {Collecting or measuring resource availability data}
- H04L 47/824: {Applicable to portable or mobile terminals}
- H04W 8/04: Registration at HLR or HSS [Home Subscriber Server]
- H04W 28/12: using signalling between network elements
- H04W 24/00: Supervisory, monitoring or testing arrangements
- H04W 92/12: between access points and access point controllers
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)
- H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M)

## Abstract

A method, system, and apparatus for controlling traffic flow in one or more backhaul links in a wireless communication network is provided. Each backhaul link of the one or more backhaul links includes a backhaul uplink and a backhaul downlink. The method includes analyzing one or more backhaul uplinks and one or more backhaul downlinks between a controller and one or more Base Transceiver Stations (BTSs). The method further includes communicating one or more messages between the controller and the one or more BTSs. The one or more messages include analysis of one or more analyses of one of the one or more backhaul uplinks and the one or more backhaul downlinks. The method further includes controlling the traffic flow in at least one of the one or more backhaul uplinks and the one or more backhaul downlinks based on the one or more messages.

## Claims

### Claim 1

A method of communicating in a wireless communication network, the method comprising:
communicating at least one message between a controller and at least one Base Transceiver Station (BTS), the at least one message including at least one result of an analysis of at least one backhaul uplink or at least one backhaul downlink between the controller and the at least one BTS; and
controlling traffic flow in at least one of the at least one backhaul uplink and the at least one backhaul downlink based on the at least one message, the at least one message being appended with information specific to at least one of the controller and the at least one BTS.

### Claim 2 (depends on 1)

The method of claim 1, wherein the communicating and controlling are performed in a manner consistent with a protocol according to a Wireless Interoperability Microwave Access (WiMAX) communication network, a Long Term Evolution (LTE) network, an Ultra Mobile Broadband (UMB) network, a Wireless Fidelity (WiFi) network, or an Orthogonal Frequency Division Multiple Access (OFDMA) communication network having the at least one backhaul link.

### Claim 3 (depends on 1)

The method of claim 1, wherein the information appended is a vendor specific Type/Length/Value (TLV) acting as a unique identifier for the at least one of the controller and the at least one BTS.

### Claim 4 (depends on 1)

The method of claim 1, further comprising enabling the controller to identify overall capabilities associated with the at least one BTS based on the information appended.

### Claim 5 (depends on 4)

The method of claim 4, wherein controlling the traffic flow in the at least one backhaul downlink includes controlling the traffic flow based on the overall capabilities identified.

### Claim 6 (depends on 1)

The method of claim 1, further comprising analyzing the at least one backhaul uplink by:
determining a variation in a capacity of the at least one backhaul uplink from a predefined uplink capacity, wherein the at least one backhaul uplink is between the controller and a given BTS of the at least one BTS; and
determining whether a failure of the backhaul uplink has occurred.

### Claim 7 (depends on 6)

The method of claim 6, wherein communicating the at least one message is performed by transmitting the at least one message by the controller to the given BTS, the message including a result of the analyzing.

### Claim 8 (depends on 7)

The method of claim 7, wherein the given BTS controls an amount of traffic flow in the backhaul uplink based on the at least one message.

### Claim 9 (depends on 1)

The method of claim 1, wherein the at least one result of the analysis of a given backhaul downlink of the at least one backhaul downlink includes at least one of:
a variation in a capacity of the given backhaul downlink from a predefined downlink capacity, wherein the given backhaul downlink is between the controller and a given BTS of the at least one BTS; and
a failure of the given backhaul downlink.

### Claim 10 (depends on 9)

The method of claim 9, wherein a given message of the at least one message is transmitted by the given BTS to the controller, the given message including the at least one result of the analysis of the given backhaul downlink.

### Claim 11 (depends on 1)

The method of claim 1, further comprising analyzing, at the controller, the at least one backhaul uplink between the controller and the at least one BTS, and analyzing, at the at least one BTS, the at least one backhaul downlink between the controller and the at least one BTS.

### Claim 12 (depends on 1)

The method of claim 1, wherein the at least one result of the analysis of a given backhaul uplink of the at least one backhaul uplink includes:
determining a variation in bandwidth of the given backhaul uplink from a predefined uplink bandwidth, wherein the at least one backhaul uplink is between the controller and a given BTS of the at least one BTS.

### Claim 13 (depends on 1)

The method of claim 1, wherein the at least one result of the analysis of a given backhaul downlink of the at least one backhaul downlink includes:
determining a variation in bandwidth of the given backhaul downlink from a predefined downlink bandwidth, wherein the given backhaul downlink is between the controller and a given BTS of the at least one BTS.

### Claim 14

A method of communicating in a wireless communication network, the method comprising:
analyzing, at a given BTS of the at least one BTS, at least one backhaul downlink between a controller and the given BTS;
communicating at least one message, from the given BTS to the controller, including at least one result of the analyzing of the at least one backhaul downlink and appended with information specific to the given BTS; and
causing the controller to control traffic flow in the at least one backhaul downlink based on the at least one result and the information specific to the given BTS.

### Claim 15 (depends on 14)

The method of claim 14, wherein the communicating and controlling are performed in a manner consistent with a protocol according to a Wireless Interoperability Microwave Access (WiMAX) communication network, a Long Term Evolution (LTE) network, an Ultra Mobile Broadband (UMB) network, a Wireless Fidelity (WiFi) network, or an Orthogonal Frequency Division Multiple Access (OFDMA) communication network having a backhaul link.

### Claim 16 (depends on 14)

The method of claim 14, wherein the information appended is a vendor specific Type/Length/Value (TLV) acting as a unique identifier for the given BTS.

### Claim 17 (depends on 14)

The method of claim 14, wherein the controller is configured to identify overall capabilities associated with the given BTS based on the information specific to the given BTS.

### Claim 18 (depends on 17)

The method of claim 17, wherein the controller is further configured to control the traffic flow in the at least one backhaul downlink based on the overall capabilities identified.

### Claim 19 (depends on 14)

The method of claim 14, wherein causing the controller to control the traffic flow includes causing the controller to control an amount of traffic flow in the at least one backhaul downlink based on the information specific to the given BTS.

### Claim 20

A method of communicating in a wireless communication network, the method comprising:
analyzing, at a controller, at least one backhaul uplink between the controller and at least one Base Transceiver Station (BTS);
communicating at least one message, from the controller to the at least one BTS, including at least one result of the analyzing of the at least one backhaul uplink and appended with information specific to the controller; and
causing the at least one BTS to control traffic flow, at the at least one BTS, in the at least one backhaul uplink, based on the at least one result and the information specific to the controller.

### Claim 21 (depends on 20)

The method of claim 20, wherein the communicating and controlling are performed in a manner consistent with a protocol according to a Wireless Interoperability Microwave Access (WiMAX) communication network, a Long Term Evolution (LTE) network, an Ultra Mobile Broadband (UMB) network, a Wireless Fidelity (WiFi) network, or an Orthogonal Frequency Division Multiple Access (OFDMA) communication network having a backhaul link.

### Claim 22 (depends on 20)

The method of claim 20, wherein the information appended is a vendor specific Type/Length/Value (TLV) acting as a unique identifier for the controller.
