Method for QoS guarantees in a multilayer structure

• US 8,588,167 B2
• Filed: 04/06/2012
• Issued: 11/19/2013
• Est. Priority Date: 09/18/2007
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Chun, Sung Duck, Lee, Young Dae, Park, Sung Jun, Yi, Seung June
• Primary Examiner(s): Sinkantarakorn, Pao
• Assistant Examiner(s): Chang, Richard K
• Application Number:
  US13/441,698
• Publication Number:
  US 20120195276A1
• Time in Patent Office: 592 Days
• Field of Search: 370/329, 370/469, 455/68, 455/503
• US Class Current: 370/329
• CPC Class Codes: H04L 1/1877 for semi-reliable protocols, e.g. for less sensitive applications like streaming video buffer level management for video bitstream control arrangements H04N21/44004
• CPC Class Codes: H04L 1/188 Time-out mechanisms
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/30 in combination with information about buffer occupancy at either end or at transit nodes
• CPC Class Codes: H04L 47/32 by discarding or delaying data units, e.g. packets or frames
• CPC Class Codes: H04L 49/90 Buffering arrangements
• CPC Class Codes: H04W 28/0252 per individual bearer or channel dynamic wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 28/0268 using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 28/14 using intermediate storage
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/044 based on the type of the allocated resource
• CPC Class Codes: H04W 8/00 Network data management
• CPC Class Codes: H04W 8/04 Registration at HLR or HSS [Home Subscriber Server]

Abstract

A method in which a user equipment processes data in a wireless mobile communication system is provided. The method includes the steps of receiving a first data block from an upper layer, transferring a second data block including the first data block to a lower layer at a particular protocol layer, discarding the first and second data blocks present in the particular protocol layer if a certain period of time has passed, and transferring information associated with the discard of the second data block to the lower layer.

Claims

1. A method of processing data at a transmitting end in a wireless mobile communication system, the method comprising the steps of:

receiving, at a Radio Link Control (RLC) layer of the transmitting end, a data block from a Packet Data Convergence Protocol (PDCP) layer of the transmitting end;

receiving, at the RLC layer of the transmitting end, information associated with a discard of the data block from the PDCP layer of the transmitting end; and

discarding, at the RLC layer of the transmitting end, the data block in accordance with the information,

wherein the information associated with the discard indicates that the data block has been discarded at the PDCP layer or instructs the RLC layer to discard the data block.

2. The method of claim 1, wherein the data block is a RLC SDU.

3. The method of claim 1, wherein the RLC layer operates in an Acknowledged Mode (AM) or an Unacknowledged Mode (UM).

4. The method of claim 1, further comprising:

discarding, at the PDCP layer of the transmitting end, the data block present in the PDCP layer, if a certain period of time has passed.

5. The method of claim 4, further comprising:

transferring, at the PDCP layer of the transmitting end, the information associated with the discard of the data block to the RLC layer of the transmitting end, if the data block has already been transferred from the PDCP layer to the RLC layer.

6. An apparatus for use in a wireless mobile communication system, the apparatus comprising:

a Packet Data Convergence Protocol (PDCP) entity; and

a Radio Link Control (RLC) entity placed below the PDCP layer entity,

wherein the RLC entity is configured;

to receive a data block from the PDCP entity;

to receive information associated with a discard of the data block from the PDCP entity; and

to discard the data block in accordance with the information,

wherein the information associated with the discard indicates that the data block has been discarded at the PDCP entity or instructs the RLC entity to discard the data block.

7. The apparatus of claim 6, wherein the data block is a RLC SDU.

8. The apparatus of claim 6, wherein the RLC entity operates in an Acknowledged Mode (AM) or an Unacknowledged Mode (UM).

9. The apparatus of claim 6, wherein the PDCP entity is configured to discard the data block present in the PDCP entity, if a certain period of time has passed.

10. The apparatus of claim 9, wherein the PDCP entity is further configured to transfer the information associated with the discard of the data block to the RLC entity, if the data block has already been transferred from the PDCP entity to the RLC entity.