Wireless multi-cell communication system and method for managing resource power to provide high speed downlink packet access services

• US 9,173,176 B2
• Filed: 02/06/2013
• Issued: 10/27/2015
• Est. Priority Date: 03/26/2003
• Status: Active Grant

• Current Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Original Assignee: Interdigital Technology Corporation (InterDigital, Inc.)
• Inventors: Rudolf, Marian, Miller, James M.
• Primary Examiner(s): Phillips, Hassan
• Assistant Examiner(s): Sharma, Gautam
• Application Number:
  US13/760,547
• Publication Number:
  US 20130148604A1
• Time in Patent Office: 993 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04W 52/08 Closed loop power control
• CPC Class Codes: H04W 52/18 TPC being performed according to specific parameters
• CPC Class Codes: H04W 52/286 during data packet transmission, e.g. high speed packet access [HSPA]
• CPC Class Codes: H04W 52/325 Power control of control or pilot channels
• CPC Class Codes: H04W 52/343 taking into account loading or congestion level
• CPC Class Codes: H04W 52/346 distributing total power among users or channels
• CPC Class Codes: H04W 52/386 centralized, e.g. when the radio network controller or equivalent takes part in the power control
• CPC Class Codes: H04W 52/54 Signalisation aspects of the TPC commands, e.g. frame structure
• CPC Class Codes: H04W 72/0473 the resource being transmission power
• CPC Class Codes: H04W 74/04 Scheduled access hybrid access H04W74/02
• CPC Class Codes: H04W 88/12 Access point controller devices
• CPC Class Codes: H04W 92/12 between access points and access point controllers

Abstract

A method and wireless multi-cell communication system for providing high speed downlink packet access (HSDPA) services. The system includes a radio network controller (RNC) in communication with a plurality of base stations. The RNC sends a control signal to at least one base station having a plurality of timeslots, e.g., in a time division duplex (TDD) system and/or frames including transmission timing intervals (TTIs), e.g., in a frequency division duplex (FDD) system assigned thereto for the establishment of HSDPA channels. The control signal indicates a maximum allowed HSDPA transmit power for each of the timeslots and/or TTIs. The base station sends a feedback signal to the RNC indicating the results of measurements of the power of the transmitted HSDPA timeslots and/or TTIs during a predetermined time period.

Claims

1. A Node B comprising:

circuitry configured to receive a first Iub signal from a radio network controller (RNC) indicating a maximum transmit power level for all channel codes transmitted by the Node B;

wherein the circuitry is further configured to receive a second Iub signal from the RNC indicating a maximum transmit power level for high speed downlink shared channel (HS-DSCH) and high speed shared control channel (HS-SCCH) codes of the Node B;

wherein the circuitry is further configured to transmit at least the HS-DSCH and HS-SCCH codes at a power level that does not exceed the maximum transmit power level for HS-DSCH and HS-SCCH codes of the Node B; and

wherein the circuitry is further configured to transmit an Iub signal to the RNC indicating a power associated with the HS-DSCH.

2. The Node B of claim 1 wherein the circuitry is further configured to schedule HS-DSCH transmissions to wireless transmit/receive units (WTRUs).

3. A radio network controller (RNC) comprising:

circuitry configured to transmit a first Iub signal to a Node B indicating a maximum transmit power level for all channel codes transmitted by the Node B;

wherein the circuitry is further configured to transmit a second Iub signal to the Node B indicating a maximum transmit power level for high speed downlink shared channel (HS-DSCH) and high speed shared control channel (HS-SCCH) codes of the Node B; and

the circuitry is further configured to receive an Iub signal from the Node B indicating a power associated with the HS-DSCH.

4. A method, performed by a Node B, of providing high speed downlink packet access (HSDPA) services, the method comprising:

receiving a first Iub signal from a radio network controller (RNC) indicating a maximum transmit power level for all channel codes transmitted by the Node B;

receiving a second Iub signal from the RNC indicating a maximum transmit power level for high speed downlink shared channel (HS-DSCH) and high speed shared control channel (HS-SCCH) codes of the Node B;

transmitting at least the HS-DSCH and HS-SCCH codes at a power level that does not exceed the maximum transmit power level for HS-DSCH and HS-SCCH codes of the Node B; and

transmitting an Iub signal to the RNC indicating a power associated with the HS-DSCH.

5. The method of claim 4 further comprising:

scheduling HS-DSCH transmissions to wireless transmit/receive units (WTRUs).

6. A method, performed by a radio network controller (RNC), of providing high speed downlink packet access (HSDPA) services, the method comprising:

transmitting a first Iub signal to a Node B indicating a maximum transmit power level for all channel codes transmitted by the Node B;

transmitting a second Iub signal to the Node B indicating a maximum transmit power level for high speed downlink shared channel (HS-DSCH) and high speed shared control channel (HS-SCCH) codes of the Node B; and

receiving an Iub signal by the RNC from the Node B indicating a power associated with the HS-DSCH.