Method of data communication in a wireless communication system

• US 20090238128A1
• Filed: 03/20/2009
• Published: 09/24/2009
• Est. Priority Date: 03/21/2008
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Park, Sung Jun, Lee, Young Dae, Yi, Seung June, Chun, Sung Duck
• Granted Patent: US 7,756,081 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/18 Automatic repetition systems, e.g. Van Duuren systems
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0064 Rate requirement of the data, e.g. scalable bandwidth, data priority
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path

Abstract

A method of data communication in a wireless communication system is disclosed. A method of receiving data in a user equipment of a wireless communication system comprises receiving scheduling information from a network, the scheduling information including downlink (DL) resource assignment information and an indicator; if the scheduling information includes a first UE identity and the first indicator has a first value, utilizing the scheduling information as configuration information of a persistent scheduling to receive a downlink data packet from the network; and if the scheduling information includes the first UE identity and the first indicator has a second value, utilizing the scheduling information to receive a retransmission data packet from the network.

Claims

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

receiving scheduling information from a network, the scheduling information including downlink (DL) resource assignment information and an indicator;

if the scheduling information includes a first UE identity and the first indicator has a first value, utilizing the scheduling information as configuration information of a persistent scheduling to receive a downlink data packet from the network; and

if the scheduling information includes the first UE identity and the first indicator has a second value, utilizing the scheduling information to receive a retransmission data packet from the network.

2. The method of claim 1, wherein, if the scheduling information includes a second UE identity, utilizing the scheduling information as downlink assignment information according to a dynamic scheduling to receive a downlink data packet from the network.

3. The method of claim 1, wherein, if the scheduling information includes the first UE identity and the first indicator has the first value, the scheduling information is used for at least two transmission time intervals (TTIs).

4. The method of claim 1, wherein, if the scheduling information includes the first UE identity and the indicator has the second value or if the scheduling information includes the second UE identity, the scheduling information is used for a single transmission time interval (TTI).

5. The method of claim 1, wherein the first UE identity is a Semi-Persistent Scheduling C-RNTI (SPS-C-RNTI).

6. The method of claim 1, wherein the indicator is a new data indicator (NDI).

7. The method of claim 1, wherein the second UE identity is C-RNTI or a temporary C-RNTI.

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

9. The method of claim 1, wherein the downlink data packet is an initial transmission data packet.

10. The method of claim 9, wherein the retransmission data packet is a data packet for an initial transmission data packet which has been received based on the persistent scheduling.

11. A method of data communication at a user equipment (UE) in a wireless communication system, the method comprising:

receiving scheduling information from a network, the scheduling information including uplink (UL) resource assignment information and an indicator;

if the scheduling information includes a first UE identity and the first indicator has a first value, utilizing the scheduling information as configuration information of a persistent scheduling to transmit an uplink data packet to the network; and

if the scheduling information includes the first UE identity and the first indicator has a second value, utilizing the scheduling information to transmit a retransmission data packet to the network.

12. The method of claim 11, wherein, if the scheduling information includes a second UE identity, utilizing the scheduling information as uplink assignment information according to a dynamic scheduling to transmit an uplink data packet to the network.

13. The method of claim 11, wherein, if the scheduling information includes the first UE identity and the first indicator has the first value, the scheduling information is used for at least two transmission time intervals (TTIs).

14. The method of claim 11, wherein, if the scheduling information includes the first UE identity and the indicator has the second value or if the scheduling information includes the second UE identity, the scheduling information is used for a single transmission time interval (TTI).

15. The method of claim 11, wherein the first UE identity is a Semi-Persistent Scheduling C-RNTI (SPS-C-RNTI).

16. The method of claim 11, wherein the indicator is a new data indicator (NDI).

17. The method of claim 11, wherein the second UE identity is C-RNTI or a temporary C-RNTI.

18. The method of claim 11, wherein the scheduling information is received through a physical downlink control channel (PDCCH).

19. The method of claim 11, wherein the uplink data packet is an initial transmission data packet.

20. The method of claim 19, wherein the retransmission data packet is a data packet for an initial transmission data packet which has been transmitted based on the persistent scheduling.

21. A method of data communication at a user equipment (UE) in a wireless communication system, the method comprising:

receiving scheduling information for configuration of a persistent scheduling from a network; and

receiving at least two downlink data packets from the network based on the received scheduling information,

wherein each of HARQ process identifiers for the at least two downlink data packets is set to each at least two HARQ process identifiers one after another, the at least two HARQ process identifiers previously allocated to the UE by the network.

22. The method of claim 21, wherein the at least two downlink data packets are initial transmission data packets.

23. The method of claim 21, wherein the scheduling information includes a Semi-Persistent Scheduling C-RNTI (SPS-C-RNTI) identifying the UE and a new data indicator (NDI) having a predefined value.

24. The method of claim 21, wherein the scheduling information includes downlink resource assignment information and HARQ-related information.

25. A method of data communication at a network in a wireless communication system, the method comprising:

allocating at least two HARQ process identifiers to a user equipment (UE) to receive downlink data in accordance with a persistent scheduling;

transmitting scheduling information for configuration of the persistent scheduling to the UE; and

transmitting at least two downlink data packets to the UE based on the scheduling information,

wherein each of HARQ process identifiers for the at least two downlink data packets is set to each of the allocated at least two HARQ process identifiers one after another.

26. The method of claim 25, wherein the at least two downlink data packets are initial transmission data packets.

27. The method of claim 25, wherein the scheduling information includes a Semi-Persistent Scheduling C-RNTI (SPS-C-RNTI) identifying the UE and a new data indicator (NDI) having a predefined value.

28. The method of claim 25, wherein the scheduling information includes downlink resource assignment information and HARQ-related information.