Method of allocating radio resources in a wireless communication system

• US 8,315,658 B2
• Filed: 06/24/2011
• Issued: 11/20/2012
• Est. Priority Date: 08/22/2007
• 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): Alam, Fayyaz
• Application Number:
  US13/168,672
• Publication Number:
  US 20110256879A1
• Time in Patent Office: 515 Days
• Field of Search: 455509-516, 370326-330, 370319-322
• US Class Current: 455/509
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• 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: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/04 Wireless resource allocation
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/535 based on resource usage policies

Abstract

A method of allocating radio resources in a wireless communication system is disclosed. A method of allocating radio resources from a network of a wireless communication system in accordance with a plurality of scheduling modes comprises transmitting first scheduling information to a user equipment to allocate radio resources to the user equipment in accordance with a first scheduling mode, the first scheduling information including a first user equipment identifier, and transmitting second scheduling information to the user equipment to allocate radio resources to the user equipment in accordance with a second scheduling mode, the second scheduling information including a second user equipment identifier.

Claims

1. A method of receiving data at a user equipment in a wireless communication system, the method comprising:

receiving first scheduling information from a network and receiving an initial packet from the network based on the first scheduling information;

transmitting NACK to the network if the user equipment fails to decode the initial packet successfully;

receiving second scheduling information from the network and receiving a retransmission packet from the network based on the second scheduling information; and

combining the retransmission packet with the initial packet to recover a packet associated with the initial packet and the retransmission packet,

wherein each of the first scheduling information and the second scheduling information comprising either a radio network temporary identifier (C-RNTI) to indicate that the scheduling information is associated with a dynamic scheduling mode or a Semi-Persistent Scheduling RNTI (SPS-C-RNTI) to indicate that the scheduling information is associated with a semi-persistent scheduling mode.

2. The method of claim 1, wherein the C-RNTI and the SPS-C-RNTI are allocated to the user equipment before receiving the scheduling information.

3. The method of claim 1, wherein the scheduling information is received on a physical downlink control channel (PDCCH).

4. The method of claim 1, wherein each of the first scheduling information and the second scheduling information further comprises an HARQ process identifier.

5. The method of claim 1, wherein each of the first scheduling information and the second scheduling information further comprises an indicator which indicates a corresponding packet is an initial packet or a retransmission packet.

6. A user equipment for receiving data in a wireless communication system, the user equipment configured to:

receive first scheduling information from a network and receive an initial packet from the network based on the first scheduling information;

transmit NACK to the network if the user equipment fails to decode the initial packet successfully;

receive second scheduling information from the network and receive a retransmission packet from the network based on the second scheduling information; and

combine the retransmission packet with the initial packet to recover a packet associated with the initial packet and the retransmission packet,

wherein each of the first scheduling information and the second scheduling information comprising either a radio network temporary identifier (C-RNTI) to indicate that the scheduling information is associated with a dynamic scheduling mode or a Semi-Persistent Scheduling RNTI (SPS-C-RNTI) to indicate that the scheduling information is associated with a semi-persistent scheduling mode.

7. The user equipment of claim 6, wherein the C-RNTI and the SPS-C-RNTI are allocated to the user equipment before receiving the scheduling information.

8. The user equipment of claim 6, wherein the scheduling information is received on a physical downlink control channel (PDCCH).

9. The user equipment of claim 6, wherein each of the first scheduling information and the second scheduling information further comprises an HARQ process identifier.

10. The user equipment of claim 6, wherein each of the first scheduling information and the second scheduling information further comprises an indicator which indicates a corresponding packet is an initial packet or a retransmission packet.