Method and system for uplink establishment in a wireless cellular communication

• US 8,897,222 B2
• Filed: 02/16/2012
• Issued: 11/25/2014
• Est. Priority Date: 04/06/2005
• Status: Active Grant

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Sundberg, Krister
• Primary Examiner(s): Gidado, Rasheed
• Application Number:
  US13/398,205
• Publication Number:
  US 20120147819A1
• Time in Patent Office: 1,013 Days
• Field of Search: 370/328, 370/352, 370/252, 370/349, 370/356
• US Class Current: 370/328
• CPC Class Codes: H04W 72/12 Wireless traffic scheduling
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 74/04 Scheduled access hybrid access H04W74/02
• CPC Class Codes: H04W 74/0866 using a dedicated channel for access
• CPC Class Codes: H04W 76/10 Connection setup
• CPC Class Codes: H04W 76/15 Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/28 Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/06 adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals

Abstract

The present invention relates to wireless communications. More especially it relates to wireless packet data communications. Particularly it relates to latency reduction by distinguishing connection initiation of circuit switched and packet switched connections, respectively.

Claims

1. A method of uplink establishment in wireless cellular communications, the method comprising:

delaying, by a processor in a user equipment, a connection initiation depending on connection type, wherein the delaying further includes

delaying, by the processor, a sending of a channel request message for circuit-switched connections, and

not delaying, by the processor, a sending of a channel request message for packet-switched connections.

2. The method according to claim 1, wherein the connection initiation is delayed for circuit switched connections, and is not delayed for packet switched connections.

3. The method according to claim 1, wherein the delaying further includes a pseudo-random time delay for circuit switched connections.

4. The method according to claim 3, wherein the pseudo-random time delay has a rectangular probability density function or a rectangular probability distribution.

5. The method according to claim 1, wherein the cellular communications system is a Global System for Mobile Communications (GSM) system with General Packet Radio Service (GPRS) or Enhanced General Packet Radio Service (EGPRS).

6. A communications system comprising a processor for carrying out the method in claim 1.

7. An apparatus of uplink establishment in wireless cellular communications, the apparatus comprising:

a transmitter;

a processor, coupled to the transmitter, the processor for delaying of a connection initiation depending on connection type, wherein the delaying further includes

delaying a sending, by the transmitter, of a channel request message for circuit-switched connections, and

not delaying a sending, by the transmitter, of a channel request message for packet-switched connections.

8. The apparatus according to claim 7, wherein the connection initiation is delayed for initiation of circuit switched connections, and is not delayed for initiation of packet switched connections.

9. The apparatus according to claim 7, further comprising:

a timer for generating a pseudo-random time delay for circuit switched connections.

10. The apparatus according to claim 9, wherein the pseudo-random time delay has a rectangular probability density function or a rectangular probability distribution.

11. The apparatus according to claim 7, further comprising:

a timer for generating a pseudorandom time delay for circuit switched connections.

12. The apparatus according to claim 7, wherein the cellular communications system is a Global System for Mobile Communications (GSM) system with General Packet Radio Service (GPRS) or Enhanced General Packet Radio Service (EGPRS).

13. The apparatus according to claim 7, wherein the apparatus is included in or is user equipment or mobile station.

14. A communications system comprising a plurality of apparatuses according to claim 7.