Method and apparatus for signaling user equipment status information for uplink packet transmission in a soft handover region

• US 20100103899A1
• Filed: 12/16/2009
• Published: 04/29/2010
• Est. Priority Date: 08/07/2004
• Status: Active Grant

• Current Assignee: Joon-Young Cho, Ju-Ho Lee, Kook-Heui Lee, Yong-Jun Kwak, Young-Bum Kim, Youn Hyoung Heo
• Original Assignee: Joon-Young Cho, Ju-Ho Lee, Kook-Heui Lee, Yong-Jun Kwak, Young-Bum Kim, Youn Hyoung Heo
• Inventors: Heo, Youn-Hyoung, Kim, Young-Bum, Kwak, Yong-Jun, Cho, Joon-Young, Lee, Ju-Ho, Lee, Kook-Heui
• Granted Patent: US 8,204,449 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1893 Physical mapping arrangements physical resource mapping in general H04L5/00
• CPC Class Codes: H04L 2001/0092 Error control systems characterised by the topology of the transmission link
• CPC Class Codes: H04W 36/00695 using split of the control plane or user plane
• CPC Class Codes: H04W 52/32 TPC of broadcast or control channels
• CPC Class Codes: H04W 52/362 Aspects of the step size
• CPC Class Codes: H04W 52/40 during macro-diversity or soft handoff
• CPC Class Codes: H04W 8/20 Transfer of user or subscriber data

Abstract

A method and apparatus are provided for transmitting user equipment (UE) status information in communication with one serving Node B and at least one non-serving Node B in a mobile communication system. The method and apparatus comprise generating transport channel data including UE status information; transmitting the transport channel data to the serving Node B and the at least one non-serving Node B, receiving a response signal for the transport channel data from the serving Node B, and retransmitting the transport channel data if the response signal received from the serving Node B is a non-acknowledge (NACK) signal, and ending the retransmission of the transport channel data if the response signal received from the serving Node B is an acknowledge (ACK) signal.

Claims

1. A signaling method for transmitting scheduling information for scheduling by a user equipment, UE in communication with a serving Node B and at least one non-serving Node B in a mobile communication system supporting an uplink packet data service, wherein the scheduling information for scheduling is contained in a MAC-e packet data unit, PDU, the method comprising the steps of:

generating the MAC-e PDU containing the scheduling information for scheduling;

transmitting the MAC-e PDU to the serving Node B and the at least one non-serving Node B; and

performing an Hybrid Automatic Retransmission Request, HARQ, operation for retransmitting the MAC-e PDU containing the scheduling information until an acknowledge, ACK, signal for the MAC-e PDU is received from the serving Node B with regardless of receiving an ACK signal from the at least one non-serving Node B,

wherein the scheduling information for scheduling is transmitted without transmission packet data.

2. The signaling method of claim 1, wherein the scheduling information is inserted in a payload of the MAC-e PDU.

3. The signaling method of claim 1, further comprising the step of:

performing the HARQ operation within a predetermined maximum number of retransmissions.

13. A signaling method of claim 1, wherein the scheduling information comprises at least one of buffer status information, uplink transmission power information and information indicating available power.

4. A signaling method for transmitting scheduling information for scheduling by a user equipment, UE in communication with a serving Node B and at least one non-serving Node B in a mobile communication system supporting an uplink packet data service, wherein the scheduling information for scheduling is contained in a MAC-e packet data unit, PDU, the method comprising the steps of:

generating the MAC-e PDU containing the scheduling information for scheduling;

transmitting the MAC-e PDU to the serving Node B and the at least one non-serving Node B;

performing an Hybrid Automatic Retransmission Request, HARQ, operation for retransmitting the MAC-e PDU containing the scheduling information for scheduling until an acknowledge, ACK, signal for the MAC-e PDU is received from the serving Node B or the at least one non-serving Node B,

wherein the scheduling information for scheduling is transmitted together with transmission packet data; and

transmitting the scheduling information and a new transmission packet data in the next period if an ACK signal is received from any one of non-serving Node Bs.

5. The signaling method of claim 4, wherein the scheduling information is inserted in a payload of the MAC-e PDU.

6. The signaling method of claim 4, further comprising the step of:

performing the HARQ operation within a predetermined maximum number of retransmissions.

14. A signaling method of claim 4, wherein the scheduling information comprises at least one of buffer status information, uplink transmission power information and information indicating available power.

7. A user equipment, UE, apparatus for scheduling by a UE in communication with a serving Node B and at least one non-serving Node B in a mobile communication system supporting an uplink packet data service, wherein the scheduling information for scheduling is contained in a MAC-e packet data unit, PDU, the apparatus comprising:

means for generating the MAC-e PDU containing the scheduling information for scheduling;

means for transmitting the MAC-e PDU to the serving Node B and the at least one non-serving Node B;

means for receiving a response signal for the MAC-e PDU from to the serving Node B and the at least one non-serving Node B; and

means for controlling performing an Hybrid Automatic Retransmission Request, HARQ, operation for retransmitting the MAC-e PDU containing the scheduling information until an acknowledge, ACK, signal in response to the MAC-e PDU is received from the serving Node B with regardless of receiving an ACK signal from the at least one non-serving Node B, wherein the scheduling information for scheduling is transmitted without transmission packet data.

8. The UE apparatus of claim 7, wherein the means for generating the MAC-e PDU is further configured to insert the scheduling information in a payload of the MAC-e PDU.

9. The UE apparatus of claim 7, wherein the HARQ operation is performed within a predetermined maximum number of retransmissions.

15. A user equipment (UE) apparatus of claim 7, wherein the scheduling information comprises at least one of buffer status information, uplink transmission power information and information indicating available power.

10. A user equipment, UE, apparatus for scheduling by a UE in communication with a serving Node B and at least one non-serving Node B in a mobile communication system supporting an uplink packet data service, wherein the scheduling information for scheduling is contained in a MAC-e packet data unit, PDU, the apparatus comprising:

means for generating the MAC-e PDU containing the scheduling information for scheduling;

means for transmitting the MAC-e PDU to the serving Node B and the at least one non-serving Node B;

means for receiving a response signal for the MAC-e PDU from to the serving Node B and the at least one non-serving Node B; and

means for controlling performing an Hybrid Automatic Retransmission Request, HARQ, operation for retransmitting the MAC-e PDU containing the scheduling information for scheduling until an acknowledge, ACK, signal for the MAC-e PDU is received from the serving Node B or the at least one non-serving Node B, wherein the scheduling information for scheduling is transmitted together with transmission packet data, and controlling the means for transmitting the MAC-e PDU and the means for generating the MAC-e PDU in order to transmit the scheduling information and a new transmission packet data in the next period if an ACK signal is received from any one of non-serving Node Bs.

11. The UE apparatus of claim 10, wherein the means for generating the MAC-e PDU is further configured to insert the scheduling information in a payload of the MAC-e PDU.

12. The UE apparatus of claim 10, wherein the HARQ operation is performed within a predetermined maximum number of retransmissions.

16. A user equipment (UE) apparatus of claim 10, wherein the scheduling information comprises at least one of buffer status information, uplink transmission power information and information indicating available power.