Enhanced packet service for telecommunications

Patent metadata

Field	Value
Publication number	US-9386596-B2
Application number	US-61779206-A
Country	US
Kind code	B2
Filing date	Dec 29, 2006
Priority date	Jun 30, 2006
Publication date	Jul 5, 2016
Grant date	Jul 5, 2016

Abstract

A packet service enhancement mode ( 60 ) and packet service enhancer ( 35 ) is provided for operating a packet channel ( 25 ) existing over an air interface ( 27 ) between a base station node and a user equipment unit of a telecommunications network. As one aspect of the technology, a packet service enhancement method comprises performing a monitoring of a radio link connection carried by the packet channel and, in accordance with the monitoring, both modifying an operational parameter for the packet channel and dropping non-consecutive packets from the packet channel.

First claim

What is claimed is:

1. A method of operating a transmitting entity communicating on a packet channel existing over an air interface, the method comprising:
performing, at the transmitting entity, a monitoring of a radio link connection carried by the packet channel;
detecting a deterioration of the radio link connection based on the monitoring; and
in response to detecting the deterioration of the radio link connection:
modifying an operational parameter for the packet channel; and,
dropping non-consecutive packets from the packet channel so that dropped non-consecutive packets are not carried over the air interface wherein an application source rate at which packets are transmitted is compatible with an available physical channel rate of the high speed packet access channel.

2. The method of claim 1 , wherein performing the monitoring comprises detecting deterioration of the radio link connection carried by the packet channel.

3. The method of claim 1 , wherein the act of modifying the operational parameter for the packet channel is performed to prevent premature dropping of a packet due to a prevailing reordering timer timeout setting.

4. The method of claim 1 , wherein the act of modifying the operational parameter for the packet channel comprises increasing an allowed transmission time for a frame carried by the packet channel.

5. The method of claim 4 , wherein the packet channel is a HSDPA channel, wherein the transmitting entity is a base station node, and wherein increasing the allowed transmission time for a frame carried by the packet channel comprises increasing a delay threshold in a packet scheduler of the base station node.

6. The method of claim 1 , wherein the act of modifying the operational parameter for the packet channel comprises modifying a delay requirement for packets of the radio link connection carried by the packet channel.

7. The method of claim 1 , wherein the act of modifying the operational parameter for the packet channel comprises increasing total received energy of packets transmitted on the packet channel.

8. The method of claim 7 , wherein the act of increasing total received energy of packets transmitted on the packet channel comprises increasing transmission power for the packet channel.

9. The method of claim 7 , wherein the act of modifying the operational parameter comprises increasing an allowable number of retransmission attempts for packets on the packet channel.

10. The method of claim 9 , wherein the transmitting entity is a user equipment unit (UE), and further comprising signaling a new allowable number of retransmission attempts in a field of a MAC-e header.

11. The method of claim 1 , wherein the transmitting entity is a base station node, and wherein the packet channel is a High Speed Downlink Packet Access (HSDPA) channel.

12. The method of claim 1 , wherein the transmitting entity is a user equipment unit (UE), and wherein the packet channel is an E-DCH channel.

13. The method of claim 1 , wherein the act of detecting deterioration of a radio link connection with the user equipment unit comprises one of: (1) monitoring a number of transmission attempts for each packet; (2) counting a number of times a maximum number of transmissions attempts has been exceeded, (3) counting a number of abandoned packets, and (4) measuring actual power needed to transmit the packets on the packet channel.

14. The method of claim 1 , wherein the act of dropping the non-consecutive packets from the packet channel comprises dropping non-consecutive packets according to a predetermined strategy.

15. The method of claim 14 , wherein the predetermined strategy of dropping the non-consecutive packets from the packet channel comprises one of:
(1) dropping packets according to a probability theory;
(2) dropping packets based on packet size;
(3) dropping packets based on packet content;
(4) dropping every n th packet, wherein n is a positive integer greater than two.

16. The method of claim 1 , wherein the act of dropping the non-consecutive packets from the packet channel comprises one of: (1) dropping packets already queued in a packet queue; (2) dropping incoming packets before entry into a packet queue; (3) a combination of (1) and (2).

17. The method of claim 1 , further comprising exiting an enhancement mode of operation after a predetermined number of successful transmissions have occurred on the packet channel, the returning to the non-deterioration mode of operation comprising:
de-modifying the operational parameter for the packet channel; and
removing a requirement of dropping non-consecutive packets from the packet channel.

18. A base station node of a telecommunications system which transmits a downlink HSDPA packet channel existing over an air interface between the base station node and a user equipment unit, the base station node comprising:
a detector configured to detect deterioration of a radio link connection carried by the packet channel; and
a processor configured to:
modify an operational parameter for the packet channel;
drop non-consecutive packets from the packet channel so that dropped non-consecutive packets are not carried over the air interface wherein an application source rate at which packets are transmitted is compatible with an available physical channel rate of the high speed packet access channel.

19. A user equipment unit which transmits an uplink E-DCH packet channel existing over an air interface between the user equipment unit and a base station node of a telecommunications system, the user equipment unit comprising:
a detector configured to detect deterioration of a radio link connection carried by the packet channel; and
a processor configured to:
modify an operational parameter for the packet channel;
drop non-consecutive packets from the packet channel so that dropped non-consecutive packets are not carried over the air interface wherein an application source rate at which packets are transmitted is compatible with an available physical channel rate of the high speed packet access channel.

20. A base station node of a telecommunications system comprising:
a transmitter configured to transmit packets over an air interface on a packet channel;
a detector configured to detect deterioration of a radio link connection carried by the packet channel;
a packet service enhancer configured to drop non-consecutive packets from the packet channel in response to detection of the deterioration wherein an application source rate at which packets are transmitted is compatible with an available physical channel rate of the high speed packet access channel.

21. The node of claim 20 , wherein the packet service enhancer is configured to drop only non-consecutive packets from the packet channel upon detection of the deterioration.

22. The node of claim 20 , wherein the packet service enhancer is configured to either:
(1) drop packets according to a probability theory;
(2) drop packets based on packet size;
(3) drop packets based on packet content; or
(4) drop every n th packet, wherein n is a positive integer greater than two.

23. The node of claim 20 , further comprising a packet queue, and wherein the packet service enhancer is configured to either (1) drop packets already queued in a packet queue; (2) drop incoming packets before entry into a packet queue; (3) perform a combination of (1) and (2).

24. The node of claim 20 , wherein the packet service e

Assignees

• Peisa Janne
• Olofsson Håkan
• Sågfors Mats Fredrik
• Synnergren Per
• Ericsson Telefon Ab L M

Inventors

• Peisa Janne
• Olofsson Håkan
• Sågfors Mats Fredrik
• Synnergren Per

Classifications

• H04W72/542 Primary

  using measured or perceived quality · CPC title

• H04W88/08

  Access point devices · CPC title

• H04W52/286

  during data packet transmission, e.g. high speed packet access [HSPA] · CPC title

• H04W72/1231 Primary

  Electricity · mapped topic