Qualifying available reverse link coding rates from access channel power setting

• US 9,185,604 B2
• Filed: 08/18/2014
• Issued: 11/10/2015
• Est. Priority Date: 02/23/2001
• Status: Expired due to Term

• Current Assignee: IPR Licensing Incorporated (InterDigital, Inc.)
• Original Assignee: IPR Licensing Incorporated (InterDigital, Inc.)
• Inventors: Nelson, George R., Hoffmann, John E., Proctor, James A., Rouphael, Antoine J.
• Primary Examiner(s): Lai, Andrew
• Assistant Examiner(s): LEE, ANDREW CHUNG CHEUNG
• Application Number:
  US14/462,124
• Publication Number:
  US 20150043567A1
• Time in Patent Office: 449 Days
• Field of Search: 370/335, 370/336, 370/342, 370/468, 370/310, 370/315, 370/316, 370/320, 370/328, 370/329, 455/63.1, 455/67.11, 455/68, 455/450, 455/507, 455/517, 455/525
• US Class Current: 1/1
• CPC Class Codes: H04J 13/00 Code division multiplex systems for frequency hopping H04B1/713
• CPC Class Codes: H04J 13/0003 Code application, i.e. aspects relating to how codes are applied to form multiplexed channels
• CPC Class Codes: H04L 5/22 using time-division multiplexing
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 28/22 Negotiating communication rate
• CPC Class Codes: H04W 48/08 Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 52/24 using SIR [Signal to Interference Ratio] or other wireless path parameters
• CPC Class Codes: H04W 52/26 using transmission rate or quality of service QoS [Quality of Service]
• CPC Class Codes: H04W 52/365 Power headroom reporting
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0466 the resource being a scrambling code
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• 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
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

Methods and apparatuses are disclosed regarding data rate and resource allocation decisions which are made for a communications channel, such as a wireless reverse connection. The wireless reverse connection may be between stations. One of the stations may be a base station and another station may be a field unit. The field unit may transmit data to a base station at a first data rate, based on a first resource allocation. Also, the field unit may transmit, to the base station, an indication, such as a digital data word, that the field unit has the capability to support the transmission of uplink data at a second data rate. The base station may transmit a second resource allocation to the field unit. After receiving the second resource allocation, the field unit may transmit additional uplink data to the base station at the second data rate based on the second resource allocation.

Claims

1. A field unit comprising:

an antenna;

circuitry configured to transmit uplink data, to a base station, at a first data rate based on a first resource allocation;

circuitry further configured to transmit, to the base station, an indication that the field unit is capable of supporting transmission of uplink data at a second data rate, wherein the indication is based on at least a determination that the field unit is capable of using excess power to support transmission of uplink data at the second data rate;

circuitry further configured to receive, from the base station, a second resource allocation; and

circuitry further configured to transmit, to the base station, additional uplink data at a third data rate based on the received second resource allocation.

2. The field unit of claim 1, wherein the determination is based on at least an amplifier output power of the field unit.

3. The field unit of claim 1, wherein the second data rate is a higher data rate than the first data rate.

4. The field unit of claim 1, wherein the second resource allocation is based on at least the transmitted indication.

5. The field unit of claim 1, wherein the circuitry is further configured to determine a pathloss between the field unit and the base station, wherein the transmission of the indication is in response to the determined pathloss.

6. The field unit of claim 1, wherein the circuitry is further configured to segment data packets into segments, produce dynamically sized blocks derived from data of the segments, encode the produced dynamically sized blocks, and produce modulation symbols from the encoded blocks.

7. The field unit of claim 6, wherein the modulation symbols are quadrature amplitude modulation (QAM) symbols.

8. A method for use in a field unit, comprising:

transmitting, to a base station, at a first data rate based on a first resource allocation;

transmitting, to the base station, an indication that the field unit is capable of supporting transmission of uplink data at a second data rate, wherein the indication is based on at least a determination that the field unit is capable of using excess power to support transmission of uplink data at the second data rate;

receiving, from the base station, a second resource allocation; and

transmitting, to the base station, additional uplink data at a third data rate based on the received second resource allocation.

9. The method of claim 8, wherein the determination is based on at least an amplifier output power of the field unit.

10. The method of claim 8, wherein the second data rate is a higher data rate than the first data rate.

11. The method of claim 8, wherein the second resource allocation is based on at least the transmitted indication.

12. The method of claim 8, further comprising:

determining a pathloss between the field unit and the base station, wherein the transmission of the indication is in response to the determined pathloss.

13. The method of claim 8, further comprising:

segmenting data packets into segments;

producing dynamically sized blocks derived from data of the segments;

encoding the produced dynamically sized blocks; and

producing modulation symbols from the encoded blocks.

14. The method of claim 8, wherein the modulation symbols are quadrature amplitude modulation (QAM) symbols.

15. A method for use in a base station, comprising:

receiving, from a field unit, an indication of an amount of excess power that the field unit is capable of using to support an additional bandwidth allocation;

transmitting, to the field unit, an allocation of additional bandwidth for the field unit in response to the indication; and

receiving, from the field unit, uplink data over the allocated bandwidth in response to the allocation of additional bandwidth.

16. The method of claim 15, wherein the indication of an amount of excess power is derived at least from an amplifier output power of the field unit.