HARQ PROCESS RESTRICTION AND TRANSMISSION OF NON-SCHEDULED CONTROL DATA VIA UPLINK CHANNELS

• US 20090034487A1
• Filed: 09/29/2008
• Published: 02/05/2009
• Est. Priority Date: 07/25/2005
• Status: Active Grant

• Current Assignee: Panasonic Intellectual Property Corporation of America (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Lohr, Joachim, Iochi, Hitoshi
• Granted Patent: US 8,259,693 B2
• Time in Patent Office: Days
• US Class Current: 370/335
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1822 involving configuration of automatic repeat request [ARQ] with parallel processes
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements

Abstract

The present invention relates to a method and mobile terminal for performing a data allocation process for scheduled data, non-scheduled user data and non-scheduled control data obeying restrictions on the resource utilization defined by a scheduling grant and at least one non-scheduled grant. Further, the invention relates to a method for transmitting control signaling from a network entity in a radio access network of a mobile communication system controlling the radio resources of mobile terminals to at least one of said mobile terminal and the network entity in a radio access network. In order to reduce the delays to control signaling implied by a conventional HARQ process restriction mechanism the present invention suggests a new categorization of uplink data into scheduled data, non-scheduled user data and non-scheduled control data and a new HARQ process restriction mechanism disabling certain HARQ processes for non-scheduled user data only.

Claims

1. A data transmission method performed by a mobile terminal for transmitting non-scheduled user data and non-scheduled control data using HARQ processes, the method comprising:

restricting a subset of a plurality of HARQ processes for a transmission of the non-scheduled user data, and

transmitting the non-scheduled control data using said subset of a plurality of HARQ processes.

2. The data transmission method according to claim 1, further comprising receiving a non-scheduled grant indicating the maximum amount of resources the mobile terminal is allowed to utilize for transmitting the non-scheduling user data on an uplink channel.

3. The data transmission method according to claim 1, wherein the non-scheduled control data is scheduling information for the mobile terminal to request resources.

4. A mobile terminal for transmitting non-scheduled user data and non-scheduled control data using HARQ processes, comprising:

a restriction section that restricts a subset of a plurality of HARQ processes for a transmission of the non-scheduled user data, and

a transmission section that transmits the non-scheduled control data using said subset of a plurality of HARQ processes.

5. The mobile terminal according to claim 4, further comprising a reception section that receives a non-scheduled grant indicating the maximum amount of resources the mobile terminal is allowed to utilize for transmitting the non-scheduling user data on an uplink channel.

6. The mobile terminal according to claim 4, wherein the non-scheduled control data is scheduling information for the mobile terminal to request resources.