Techniques for reducing overhead in a communications system

• US 9,999,043 B2
• Filed: 11/12/2012
• Issued: 06/12/2018
• Est. Priority Date: 01/22/2002
• Status: Expired due to Term

• Current Assignee: IPR Licensing Incorporated (InterDigital, Inc.)
• Original Assignee: IPR Licensing Incorporated (InterDigital, Inc.)
• Inventors: Cornett, Jr., John B., Johnson, Kevin P., Nelson, Jr., George R.
• Primary Examiner(s): Jain, Raj
• Application Number:
  US13/674,457
• Publication Number:
  US 20130064232A1
• Time in Patent Office: 2,038 Days
• Field of Search: 3703102, 370314, 370321, 370329, 370330, 370337, 370338, 370341, 370343, 370344, 370347, 370442, 370436, 370498
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 28/20 Negotiating bandwidth
• CPC Class Codes: H04W 28/24 Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 52/04 TPC
• CPC Class Codes: H04W 52/08 Closed loop power control
• CPC Class Codes: H04W 52/14 Separate analysis of uplink or downlink
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

Parallel demodulators are provided in field units. Forward and reverse channel allocation information may be broadcast to the field units in the same epoch as traffic data but on first and second channels, such as paging and traffic channels. This assures that all field units are able to receive forward and reverse channel allocation information every epoch. By having parallel demodulators in the field unit, switching between the first and second channels is avoided and channel allocation information is not lost.

Claims

1. A mobile device configured to receive and transmit data in allocated time intervals, wherein each time interval includes at least one forward link control channel and a forward link shared channel, the mobile device comprising:

a receiver configured to receive control information in the at least one forward link control channel of a first time interval, wherein the control information is associated with forward link shared channel allocations of resources and reverse link shared channel allocations of resources;

the receiver further configured to receive data based on the control information indicating that forward link shared channel resources are allocated to the mobile device; and

a transmitter configured to transmit data, based on the control information indicating that reverse link shared channel resources are allocated to the mobile device, in a second time interval that is a fixed number of time intervals after the first time interval.

2. The mobile device of claim 1, wherein each time interval includes at least one time slot.

3. The mobile device of claim 1, further comprising:

a processor further configured to determine whether an identification of the mobile device is present in the control information.

4. The mobile device of claim 1, wherein the control information for the mobile device further includes power control information.

5. The mobile device of claim 1, wherein the data is IP packet data.

6. A method for use in a mobile device configured to receive and transmit data in allocated time intervals, wherein each time interval includes at least one forward link control channel and a forward link shared channel, the method comprising:

receiving, by a receiver, control information in the at least one forward link control channel of a first time interval, wherein the control information is associated with forward link shared channel allocations of resources and reverse link shared channel allocations of resources;

receiving, by the receiver, data based on the control information indicating that forward link shared channel resources are allocated to the mobile device; and

transmitting, by a transmitter, data, based on the control information indicating that reverse link shared channel resources are allocated to the mobile device, in a second time interval that is a fixed number of time intervals after the first time interval.

7. The method of claim 6, wherein each time interval includes at least one time slot.

8. The method of claim 6, further comprising:

determining, by a processor, whether an identification of the mobile device is present in the control information.

9. The method of claim 6, wherein the control information for the mobile device further includes power control information.

10. The method of claim 6, wherein the data is IP packet data.

11. A base station configured to allocate resources in time intervals, wherein each time interval includes at least one forward link control channel and a forward link shared channel, the base station comprising:

a transmitter configured to transmit control information in the at least one forward link control channel of a first time interval, wherein the control information is associated with forward link shared channel allocations of resources and reverse link shared channel allocations of resources;

the transmitter further configured to transmit data to a mobile device based on the control information indicating that forward link shared channel resources are allocated to the mobile device; and

a receiver configured to receive data from the mobile device, based on the control information indicating that reverse link shared channel resources are allocated to the mobile device, in a second time interval that is a fixed number of time intervals after the first time interval.

12. The base station of claim 11, wherein each time interval includes at least one time slot.

13. The base station of claim 11, wherein the control information for the mobile device includes an identification of the mobile device.

14. The base station of claim 11, wherein the control information for the mobile device further includes power control information.

15. The base station of claim 11, wherein the data is IP packet data.