Apparatus and Method For Automatic Repeat Request Signalling With Reduced Retransmission Indications in a Wireless VoIP Communication System

• US 20080062944A1
• Filed: 09/08/2006
• Published: 03/13/2008
• Est. Priority Date: 09/08/2006
• Status: Abandoned Application

• Current Assignee: Motorola Mobility, Inc. (Lenovo Group Ltd.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Bi, Hao, Reed, John D., O'Connor, James M., McBeath, Sean M., Smith, Jack A., Pinckley, Danny T.
• Application Number:
  US11/530,352
• Publication Number:
  US 20080062944A1
• Time in Patent Office: Days
• US Class Current: 370/342
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04W 72/121 for groups of terminals or users
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/30 Resource management for broadcast services

Abstract

A base station (103) assigns a set of mobile stations (101) to a group wherein the group will share a set of radio resources. A shared control channel information element (501) is sent to the group of mobile stations (101) and provides a bitmap having fields for a control header (502), utilized resources (510), and first HARQ transmission assignments (530). HARQ subgroups may be defined to associate subgroups of mobile stations with specific HARQ transmission opportunities on the super-frame. The mobile stations (101) are assigned resources in a persistent manner in each long frame of a super-frame for which a first HARQ transmission opportunity is defined.

Claims

1. A method of operating a network infrastructure entity, the method comprising:

sending, to a group of mobile stations, a first indicator for indicating resources in use from a set of shared resources; and

sending a second indicator for indicating which mobile stations of said group have a first transmission opportunity defined and are being allocated at least one resource of said set of shared resources.

2. The method of claim 1, wherein sending said first indicator further comprises sending a bitmap, wherein each position in the bitmap corresponds to one resource of said set of shared resources.

3. The method of claim 1, wherein sending said second indicator further comprises sending a bitmap, wherein each position in the bitmap corresponds to a mobile station for which said first transmission opportunity is defined.

4. The method of claim 1, further comprising sending a first transmission of an encoded packet to a mobile station indicated as active via said second indictor using a resource of said set of shared resources that is not indicated as in use via said first indicator.

5. The method of claim 4, further comprising sending a second transmission to said mobile station using said resource.

6. A method in a mobile station, the method comprising:

receiving a first indicator for indicating resources in use from a set of shared resources;

receiving a second indicator for indicating which mobile stations of said group have a first transmission opportunity defined and are being allocated at least one resource of said set of shared resources; and

determining if said mobile station is assigned at least one of said set of shared resources if a pending transmission opportunity for said mobile stations is a first transmission opportunity, using said first indicator and said second indicator.

7. A mobile station comprising:

at least one transceiver;

at least one processor coupled to said transceiver;

said processor configured to;

receive a first indicator for indicating resources in use from a set of shared resources;

receive a second indicator for indicating which mobile stations of said group have a first transmission opportunity defined and are being allocated at least one resource of said set of shared resources; and

determine if said mobile station is assigned at least one of said set of shared resources if a pending transmission opportunity for said mobile stations is a first transmission opportunity, using said first indicator and said second indicator.

8. A base station comprising:

a transceiver;

a processor coupled to said transceiver, said processor configured to;

send, to a group of mobile stations, a first indicator for indicating resources in use from a set of shared resources; and

send a second indicator for indicating which mobile stations of said group have a first transmission opportunity defined and are being allocated at least one resource of said set of shared resources.

9. The base station of claim 8, wherein said processor is further configured to send said first indicator by sending a bitmap, wherein each position in the bitmap corresponds to one resource of said set of shared resources.

10. The base station of claim 8, wherein said processor is further configured to send said second indicator by sending a bitmap, wherein each position in the bitmap corresponds to a mobile station for which said first transmission opportunity is defined.

11. The base station of claim 8, wherein said processor is further configured to send a first transmission of an encoded packet to a mobile station indicated as active via said second indictor using a resource of said set of shared resources that is not indicated as in use via said first indicator.

12. The base station of claim 8, wherein said processor is further configured to send a second transmission to said mobile station using said resource.