Congestion control in a wireless communication network
First Claim
1. A method for congestion control in a wireless communication network comprising an air interface and a transport network interface, the method comprising:
- detecting a congestion condition over the air interface;
storing a current bitrate over the transport network interface at which the congestion condition over the air interface was detected as a new reference bitrate;
requesting a reduction of the bitrate over the transport network interface;
requesting a boost of the bitrate over the transport network interface up to the stored new reference bitrate; and
requesting a gradual increase of the bitrate over the transport network interface beyond the stored new reference bitrate.
5 Assignments
0 Petitions
Accused Products
Abstract
The present invention is related to a method, base station (RBS) and computer program for quickly recovering from a detected congestion over the air interface. First the current bitrate at the which the air interface congestion has been detected is stored as a new reference bitrate. Thereafter, the base station (RBS) requests a reduction of the bitrate associated with the air interface. When the congestion condition has subsided the base station (RBS) requests a boost of the bitrate associated with the air interface up to the stored new reference bitrate. When finally the new reference bitrate has been reached, the base station (RBS) requests a linear increase of the bitrate associated with the air interface.
-
Citations
12 Claims
-
1. A method for congestion control in a wireless communication network comprising an air interface and a transport network interface, the method comprising:
-
detecting a congestion condition over the air interface; storing a current bitrate over the transport network interface at which the congestion condition over the air interface was detected as a new reference bitrate; requesting a reduction of the bitrate over the transport network interface; requesting a boost of the bitrate over the transport network interface up to the stored new reference bitrate; and requesting a gradual increase of the bitrate over the transport network interface beyond the stored new reference bitrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
-
-
9. A base station for communication in a wireless communication network comprising:
-
a receiver/transmitter combination configured to transmit and receive packet data; a buffer unit configured to store packet data before transmission; a measurement unit configured to determine a status of packet data stored in the buffer unit; a processing unit configured to compare the determined status with a predetermined status value; and a control unit configured to transmit requests for adjustments of a bitrate over a transport network interface; wherein the processing unit is configured to store a current bitrate value over a transport network interface as a new reference bitrate value when detecting a congestion condition over an air interface, the processing unit being further configured to instruct the control unit to send control information over the transport network interface indicative of a request for a boost of the bitrate over the transport network interface up to the stored new reference bitrate value.
-
-
10. A base station for communication in a wireless communication network comprising:
-
a receiver/transmitter combination adapted to transmit and receive packet data; a buffer unit configured to store packet data before transmission; a measurement unit adapted to determine a status of packet data stored in the buffer unit; a processing unit configured to compare the determined status with a predetermined status value; and a control unit adapted configured to transmit requests for adjustments of a bitrate over a transport network interface; wherein the base station is further configured to store a current granted bitrate value over the transport network interface as a new reference bitrate value when detecting a congestion condition over an air interface and to instruct the control unit to send control information over the transport network interface indicative of a request for a boost of the bitrate over the transport network interface up to the stored new reference bitrate value.
-
-
11. A computer program product comprising a non-transitory, computer-readable medium having computer-readable instructions stored thereon, the computer readable instructions being executable by computerized device to cause the computerized device perform a method for congestion control in a wireless communication network comprising an air interface and a transport network interface, the method comprising:
-
detecting a congestion condition over the air interface; storing a current bitrate over the transport network interface at which the congestion condition over the air interface was detected as a new reference bitrate; requesting a reduction of the bitrate over the transport network interface; requesting a boost of the bitrate over the transport network interface up to the stored new reference bitrate; and requesting a gradual increase of the bitrate over the transport network interface beyond the stored reference bitrate.
-
-
12. A processing unit for congestion control in a wireless communication network comprising an air interface and a transport network interface, the unit comprising:
-
one or more data processors configured to detect a congestion condition over the air interface; a memory configured to store a bitrate over the transport network interface at which the congestion condition over the air interface was detected as a new reference bitrate; one or more data processors configured to; request a reduction of the bitrate over the transport network interface; request a boost of the bitrate over the transport network interface up to the stored new reference bitrate; and request a gradual increase of the bitrate over the transport network interface beyond the stored reference bitrate.
-
Specification