RESOURCE BLOCK CANDIDATE SELECTION TECHNIQUE EMPLOYING PACKET SCHEDULING IN WIRELESS COMMUNICATION SYSTEMS

• US 20140153519A1
• Filed: 12/26/2013
• Published: 06/05/2014
• Est. Priority Date: 02/24/2006
• Status: Active Grant

• Current Assignee: Sun Patent Trust
• Original Assignee: Panasonic Corporation (Panasonic Holdings Corporation)
• Inventors: Wengerter, Christian, Loehr, Joachim
• Granted Patent: US 9,100,981 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

A method of transmitting data packets over a plurality of dynamically allocated resource blocks in at least one or a combination of a time, code or frequency domain on a shared channel of a wireless communication system, comprising the steps of selecting a number of resource block candidates for potential transmission of data packets destined for a receiver and transmitting the data packet to the receiver using at least one allocated resource block from the selected resource block candidates. The invention also relates to a corresponding method of decoding data packets, a transmitter, receiver and communication system.

Claims

1. A method of detecting data packets received by a receiver over a plurality of dynamically allocated resource units, the unit being a minimum unit for data allocation in a combination of time and frequency domains on a shared channel of a wireless communication system, the method comprising the steps of:

receiving at least part of the data packets and dedicated control information (DCI) destined for the receiver from a transmitter on a subset of selected resource unit candidates, which are selected by the transmitter, the DCI including modulation and coding information of the data packets; and

attempting to decode the selected resource unit candidates to successfully decode the DCI destined for the receiver and transmitted on said subset to detect the at least part of the data packets,

wherein the step of receiving the at least part of the data packets and the DCI includes receiving the DCI that is mapped at a beginning first slot of said subset of the selected resource unit candidates and receiving the at least part of the data packets containing user data mapped at a second slot of said subset.

2. The method according to claim 1, further comprising a step of receiving information related to the selected resource unit candidates from the transmitter before receiving the at least part of the data packets and the DCI.

3. The method according to claim 1, wherein the step of attempting to decode the selected resource unit candidates is carried out in a parallel manner.

4. The method according to claim 1, wherein the step of attempting to decode the selected resource unit candidates is carried out in a serial manner with a priority scheme.

5. The method according to one of claim 1, further comprising a step of signalling a feedback message containing information for use by the transmitter to select the resource unit candidates.

6. The method according to claim 1, wherein the DCI carries an identifier of the receiver for use by the receiver in decoding the DCI destined for the receiver.

7. The method according to claim 1, wherein the DCI is modulated and encoded using at least one of a modulation parameter, coding parameter or transport parameter, which allows the receiver to distinguish the DCI destined therefor from those destined to other receivers.

8. A receiver for receiving data packets over a plurality of dynamically allocated resource units, the unit being a minimum unit for data allocation in a combination of time and frequency domains on a shared channel of a wireless communication system, the receiver comprising one or more processors configured to perform the steps comprising:

receiving at least part of the data packets and dedicated control information (DCI) destined for the receiver from a transmitter on a subset of selected resource unit candidates, which are selected by the transmitter, the DCI including modulation and coding information of the data packets; and

attempting to decode the selected resource unit candidates to successfully decode the DCI destined for the receiver and transmitted on said subset to detect the at least part of the data packets,

wherein the step of receiving the at least part of the data packets and the DCI includes receiving the DCI that is mapped at a beginning first slot of said subset of the selected resource unit candidates and receiving the at least part of the data packets containing user data mapped at a second slot of said subset.

9. The receiver according to claim 8, wherein the one or more processors are further configured to perform a step of receiving information related to the selected resource unit candidates from the transmitter before performing the step of receiving the at least part of the data packets and the DCI.

10. The receiver according to claim 8, wherein the one or more processors are configured to perform the step of attempting to decode the selected resource unit candidates in a parallel manner.

11. The receiver according to claim 8, wherein the one or more processors are configured to perform the step of attempting to decode the selected resource unit candidates in a serial manner with a priority scheme.

12. The receiver according to claim 8, wherein the one or more processors are further configured to perform a step of signalling a feedback message containing information for use by the transmitter to select the resource unit candidates.

13. The receiver according to claim 8, wherein the DCI carries an identifier of the receiver for use by the receiver in decoding the DCI destined for the receiver.

14. The receiver according to claim 8, wherein the DCI is modulated and encoded using at least one of a modulation parameter, coding parameter or transport parameter, which allows the receiver to distinguish the DCI destined therefor from those destined to other receivers.