METHOD AND APPARATUS FOR TRANSMITTING AND RECEIVING AN ACCESSPARAMETERS GROUP MESSAGE IN A WIRELESS COMMUNICATION SYSTEM

• US 20090097437A1
• Filed: 10/27/2006
• Published: 04/16/2009
• Est. Priority Date: 10/27/2005
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Gorokhov, Alexei, Sutivong, Arak, Prakash, Rajat
• Granted Patent: US 8,184,574 B2
• Time in Patent Office: Days
• US Class Current: 370/328
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04B 17/382 for resource allocation, admission control or handover
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0028 Formatting
• CPC Class Codes: H04L 1/0675 characterised by the signaling
• CPC Class Codes: H04L 27/2647 Arrangements specific to the receiver only equalisation H04L27/01
• CPC Class Codes: H04L 41/0803 Configuration setting
• CPC Class Codes: H04L 41/083 for increasing network speed
• CPC Class Codes: H04L 41/0869 Validating the configuration within one network element
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 52/0235 where the received signal is a power saving command
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: Y02D 30/00 Reducing energy consumption in communication networks
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method and apparatus for transmitting an AccessParameters group message in a wireless communication system, the method comprising generating the AccessParameters group message comprising a 2 bit AccessCycle Duration field wherein the AccessCycle Duration field determines the duration of the access cycle in units of Control Segment Periods (as defined by the Physical Layer), a 5 bit AccessSequencePartition field wherein the AccessSequencePartition field indicates the partition of the access sequence space to allow the access terminal to signal pilot power and buffer status information with the access sequence, a 4 bit MaxProbesPerSequence field wherein the MaxProbesPerSequence field determines the maximum number of probe sequence that can be part of one access sequence and is set to n+1, a 4 bit ProbeRampUpStepSize field wherein the ProbeRampUpStepSize field determines the power ramp up used for probes within a probe sequence and is set to a value 0.5*(1+n)dB, a 6 bit RDCHInitialPacketFormat field wherein the RDCHInitialPacketFormat field is set to the packet format that is used on the first transmission the access terminal makes on the R-DCH after getting an access grant, a 2 bit PilotStrengthSegmentation field wherein the PilotStrengthSegmentation field comprises a PilotThreshold1 and PilotThreshold2, a 8 bit OpenLoopAdjust field wherein the OpenLoopAdjust field determines the nominal power used by access terminal in the open loop power estimate and is set to value 70+n dB and transmitting the AccessParameters group message over a communication link.

Claims

1. A method of transmitting an AccessParameters group message in a wireless communication system, the method characterized in that:

generating the AccessParameters group message, the message comprising a 2 bit AccessCycle Duration field;

wherein the AccessCycle Duration field determines the duration of the access cycle in units of Control Segment Periods, a 5 bit AccessSequencePartition field, wherein the AccessSequencePartition field indicates the partition of the access sequence space to allow the access terminal to signal pilot power and buffer status information with the access sequence, a 4 bit MaxProbesPerSequence field, wherein the MaxProbesPerSequence field determines the maximum number of probe sequence that can be part of one access sequence and is set to n+1, a 4 bit ProbeRampUpStepSize field, wherein the ProbeRampUpStepSize field determines the power ramp up used for probes within a probe sequence and is set to a value 0.5*(1+n)dB, a 6 bit RDCHInitialPacketFormat field, wherein the RDCHInitialPacketFormat field is set to the packet format that is used on the first transmission the access terminal makes on the R-DCH after getting an access grant, a 2 bit PilotStrengthSegmentation field, wherein the PilotStrengthSegmentation field comprises a PilotThreshold1 and PilotThreshold2, an 8 bit OpenLoopAdjust field, wherein the OpenLoopAdjust field determines the nominal power used by access terminal in the open loop power estimate and is set to value 70+n dB; and

transmitting the AccessParameters group message over a communication link.

2. The method as claimed in claim 1, characterized in that generating the AccessParameters group message includes a 3 bit AccessRetryPersistance field wherein the AccessRetryPersistance field determines the persistence probability for determining access sequence backoff.

3. The method as claimed in claim 1, characterized in that:

the duration of the access cycle is ‘

1’

control segment period if the AccessCycleDuration field is set to ‘

00’

;

the duration of the access cycle is ‘

2’

control segment period if the AccessCycleDuration field is set to ‘

01’

;

the duration of the access cycle is ‘

3’

control segment period if the AccessCycleDuration field is set to ‘

10’

; and

the duration of the access cycle is ‘

4’

control segment period if the AccessCycleDuration field is set to ‘

11’

.

4. The method as claimed in claim 2, characterized in that the access terminal use 2⁻

n as the retry persistence if the AccessRetryPersistance field is set to n.

5. A computer readable medium including instruction stored thereon, characterized in that:

a first set of instructions for generating the AccessParameters group message, the message comprising a 2 bit AccessCycle Duration field;

wherein the AccessCycle Duration field determines the duration of the access cycle in units of Control Segment Periods, a 5 bit AccessSequencePartition field, wherein the AccessSequencePartition field indicates the partition of the access sequence space to allow the access terminal to signal pilot power and buffer status information with the access sequence, a 4 bit MaxProbesPerSequence field, wherein the MaxProbesPerSequence field determines the maximum number of probe sequence that can be part of one access sequence and is set to n+1, a 4 bit ProbeRampUpStepSize field, wherein the ProbeRampUpStepSize field determines the power ramp up used for probes within a probe sequence and is set to a value 0.5*(1+n)dB, a 6 bit RDCHInitialPacketFormat field, wherein the RDCHInitialPacketFormat field is set to the packet format that is used on the first transmission the access terminal makes on the R-DCH after getting an access grant, a 2 bit PilotStrengthSegmentation field, wherein the PilotStrengthSegmentation field comprises a PilotThreshold1 and PilotThreshold2, an 8 bit OpenLoopAdjust field, wherein the OpenLoopAdjust field determines the nominal power used by access terminal in the open loop power estimate and is set to value 70+n dB; and

a second set of instructions for transmitting the AccessParameters group message over a communication link.

6. In a wireless communication system, a signal characterized in that:

a first portion having a 2 bit AccessCycle Duration field wherein the AccessCycle Duration field determines the duration of the access cycle in units of Control Segment Periods;

a second portion having a 5 bit AccessSequencePartition field wherein the AccessSequencePartition field indicates the partition of the access sequence space to allow the access terminal to signal pilot power and buffer status information with the access sequence;

a third portion having a 4 bit MaxProbesPerSequence field wherein the MaxProbesPerSequence field determines the maximum number of probe sequence that can be part of one access sequence and is set to n+1;

a fourth portion having a 4 bit ProbeRampUpStepSize field wherein the ProbeRampUpStepSize field determines the power ramp up used for probes within a probe sequence and is set to a value 0.5*(1+n)dB;

a fifth portion having a 6 bit RDCHInitialPacketFormat field wherein the RDCHInitialPacketFormat field is set to the packet format that is used on the first transmission the access terminal makes on the R-DCH after getting an access grant;

a sixth portion having a 2 bit PilotStrengthSegmentation field wherein the PilotStrengthSegmentation field comprises a PilotThreshold1 and PilotThreshold2; and

a seventh portion having a 8 bit OpenLoopAdjust field wherein the OpenLoopAdjust field determines the nominal power used by access terminal in the open loop power estimate and is set to value 70+n dB.

7. In a wireless communication system, an apparatus characterized in that:

a processor configured to generating the AccessParameters group message, the message comprising a 2 bit AccessCycle Duration field;

wherein the AccessCycle Duration field determines the duration of the access cycle in units of Control Segment Periods, a 5 bit AccessSequencePartition field, wherein the AccessSequencePartition field indicates the partition of the access sequence space to allow the access terminal to signal pilot power and buffer status information with the access sequence, a 4 bit MaxProbesPerSequence field, wherein the MaxProbesPerSequence field determines the maximum number of probe sequence that can be part of one access sequence and is set to n+1, a 4 bit ProbeRampUpStepSize field, wherein the ProbeRampUpStepSize field determines the power ramp up used for probes within a probe sequence and is set to a value 0.5*(1+n)dB, a 6 bit RDCHInitialPacketFormat field, wherein the RDCHInitialPacketFormat field is set to the packet format that is used on the first transmission the access terminal makes on the R-DCH after getting an access grant, a 2 bit PilotStrengthSegmentation field, wherein the PilotStrengthSegmentation field comprises a PilotThreshold1 and PilotThreshold2, an 8 bit OpenLoopAdjust field, wherein the OpenLoopAdjust field determines the nominal power used by access terminal in the open loop power estimate and is set to value 70+n dB;

the processor configured to transmit the AccessParameters group message over a communication link; and

a memory coupled to the processor.

8. An apparatus operable in a wireless communication system, the apparatus characterized in that:

means for generating the AccessParameters group message, the message comprising a 2 bit AccessCycle Duration field;

wherein the AccessCycle Duration field determines the duration of the access cycle in units of Control Segment Periods, a 5 bit AccessSequencePartition field, wherein the AccessSequencePartition field indicates the partition of the access sequence space to allow the access terminal to signal pilot power and buffer status information with the access sequence, a 4 bit MaxProbesPerSequence field, wherein the MaxProbesPerSequence field determines the maximum number of probe sequence that can be part of one access sequence and is set to n+1, a 4 bit ProbeRampUpStepSize field, wherein the ProbeRampUpStepSize field determines the power ramp up used for probes within a probe sequence and is set to a value 0.5*(1+n)dB, a 6 bit RDCHInitialPacketFormat field, wherein the RDCHInitialPacketFormat field is set to the packet format that is used on the first transmission the access terminal makes on the R-DCH after getting an access grant, a 2 bit PilotStrengthSegmentation field, wherein the PilotStrengthSegmentation field comprises a PilotThreshold1 and PilotThreshold2, an 8 bit OpenLoopAdjust field, wherein the OpenLoopAdjust field determines the nominal power used by access terminal in the open loop power estimate and is set to value 70+n dB; and

means for transmitting the AccessParameters group message over a communication link.

9. A method of receiving an AccessParameters group message in a wireless communication system, the method characterized in that:

receiving the AccessParameters group message comprising a 2 bit AccessCycle Duration field wherein the AccessCycle Duration field determines the duration of the access cycle in units of Control Segment Periods, a 5 bit AccessSequencePartition field wherein the AccessSequencePartition field indicates the partition of the access sequence space to allow the access terminal to signal pilot power and buffer status information with the access sequence, a 4 bit MaxProbesPerSequence field wherein the MaxProbesPerSequence field determines the maximum number of probe sequence that can be part of one access sequence and is interpreted as n+1, a 4 bit ProbeRampUpStepSize field wherein the ProbeRampUpStepSize field determines the power ramp up used for probes within a probe sequence and is interpreted as value 0.5*(1+n)dB, a 6 bit RDCHInitialPacketFormat field wherein the RDCHInitialPacketFormat field is set to the packet format that is used on the first transmission the access terminal makes on the R-DCH after getting an access grant, a 2 bit PilotStrengthSegmentation field wherein the PilotStrengthSegmentation field comprises a PilotThreshold1 and PilotThreshold2, a 8 bit OpenLoopAdjust field wherein the OpenLoopAdjust field determines the nominal power used by access terminal in the open loop power estimate and is interpreted as value 70+n dB; and

processing the AccessParameters group message.

10. The method as claimed in claim 16, characterized in that receiving the AccessParameters group message including a 3 bit AccessRetryPersistance field wherein the AccessRetryPersistance field determines the persistence probability for determining access sequence backoff.

11. The method as claimed in claim 16, characterized in that:

the duration of the access cycle is interpreted as ‘

1’

control segment period if the AccessCycleDuration field is set to ‘

00’

;

the duration of the access cycle is interpreted as ‘

2’

control segment period if the AccessCycleDuration field is set to ‘

01’

.

the duration of the access cycle is interpreted as ‘

3’

control segment period if the AccessCycleDuration field is set to ‘

10’

.

the duration of the access cycle is interpreted as ‘

4’

control segment period if the AccessCycleDuration field is set to ‘

11’

.

12. The method as claimed in claim 17, characterized in that the access terminal use 2⁻

n as the retry persistence if the AccessRetryPersistance field is set to n.

13. A computer readable medium including instructions stored thereon, characterized in that:

a first set of instructions for receiving the AccessParameters group message comprising a 2 bit AccessCycle Duration field wherein the AccessCycle Duration field determines the duration of the access cycle in units of Control Segment Periods, a 5 bit AccessSequencePartition field wherein the AccessSequencePartition field indicates the partition of the access sequence space to allow the access terminal to signal pilot power and buffer status information with the access sequence, a 4 bit MaxProbesPerSequence field wherein the MaxProbesPerSequence field determines the maximum number of probe sequence that can be part of one access sequence and is interpreted as n+1 , a 4 bit ProbeRampUpStepSize field wherein the ProbeRampUpStepSize field determines the power ramp up used for probes within a probe sequence and is interpreted as value 0.5*(1+n)dB, a 6 bit RDCHInitialPacketFormat field wherein the RDCHInitialPacketFormat field is set to the packet format that is used on the first transmission the access terminal makes on the R-DCH after getting an access grant, a 2 bit PilotStrengthSegmentation field wherein the PilotStrengthSegmentation field comprises a PilotThreshold1 and PilotThreshold2, a 8 bit OpenLoopAdjust field wherein the OpenLoopAdjust field determines the nominal power used by access terminal in the open loop power estimate and is interpreted as value 70+n dB; and

a second set of instructions for processing the AccessParameters group message over a communication link.

14. An apparatus operable in a wireless communication system, the apparatus characterized in that:

means for receiving the AccessParameters group message comprising a 2 bit AccessCycle Duration field wherein the AccessCycle Duration field determines the duration of the access cycle in units of Control Segment Periods (as defined by the Physical Layer), a 5 bit AccessSequencePartition field wherein the AccessSequencePartition field indicates the partition of the access sequence space to allow the access terminal to signal pilot power and buffer status information with the access sequence, a 4 bit MaxProbesPerSequence field wherein the MaxProbesPerSequence field determines the maximum number of probe sequence that can be part of one access sequence and is interpreted as n+1, a 4 bit ProbeRampUpStepSize field wherein the ProbeRampUpStepSize field determines the power ramp up used for probes within a probe sequence and is interpreted as value 0.5*(1+n)dB, a 6 bit RDCHInitialPacketFormat field wherein the RDCHInitialPacketFormat field is set to the packet format that is used on the first transmission the access terminal makes on the R-DCH after getting an access grant, a 2 bit PilotStrengthSegmentation field wherein the PilotStrengthSegmentation field comprises a PilotThreshold1 and PilotThreshold2, a 8 bit OpenLoopAdjust field wherein the OpenLoopAdjust field determines the nominal power used by access terminal in the open loop power estimate and is interpreted as value 70+n dB; and

means for processing the AccessParameters group message over a communication link.