US20040174846A1 - Method and apparatus for controlling a reverse traffic rate in a mobile communication system - Google Patents

Method and apparatus for controlling a reverse traffic rate in a mobile communication system Download PDF

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Publication number
US20040174846A1
US20040174846A1 US10/794,992 US79499204A US2004174846A1 US 20040174846 A1 US20040174846 A1 US 20040174846A1 US 79499204 A US79499204 A US 79499204A US 2004174846 A1 US2004174846 A1 US 2004174846A1
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US
United States
Prior art keywords
rate
reverse
packet data
data frame
mobile station
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/794,992
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English (en)
Inventor
Hwan-Joon Kwon
Dong-Hee Kim
Youn-Sun Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Assigned to SAMSUNG ELECTRONICS CO., LTD. reassignment SAMSUNG ELECTRONICS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KIM, DONG-HEE, KIM, YOUN-SUN, KWON, HWAN-JOON
Publication of US20040174846A1 publication Critical patent/US20040174846A1/en
Priority to US12/431,457 priority Critical patent/US9967899B2/en
Priority to US12/493,930 priority patent/US20090262720A1/en
Abandoned legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/08—Active safety systems predicting or avoiding probable or impending collision or attempting to minimise its consequences
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L47/00—Traffic control in data switching networks
    • H04L47/10—Flow control; Congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W50/00—Details of control systems for road vehicle drive control not related to the control of a particular sub-unit, e.g. process diagnostic or vehicle driver interfaces
    • B60W50/08—Interaction between the driver and the control system
    • B60W50/14—Means for informing the driver, warning the driver or prompting a driver intervention
    • B60W2050/146—Display means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2420/00—Indexing codes relating to the type of sensors based on the principle of their operation
    • B60W2420/54—Audio sensitive means, e.g. ultrasound
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/16—Deriving transmission power values from another channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/32—TPC of broadcast or control channels
    • H04W52/325—Power control of control or pilot channels
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • Reverse data transmission from a mobile station to a base station is performed over a reverse packet data channel (R-PDCH) by the physical layer packet (PLP), and a packet length is fixed.
  • a data rate is variable for each packet, and a data rate of each packet is controlled depending on a power of a mobile station transmitting the corresponding packet, a total amount of transmission data, and a rate control bit (RCB) provided from a base station over a forward rate control channel (RCCH).
  • R-PDCH reverse packet data channel
  • PGP physical layer packet
  • a gain of the corresponding channel has a fixed value compared with a gain of a pilot channel.
  • a system informs TPR allowed for each mobile station instead of directly informing the scheduled result as a data rate.
  • TPR is increased according to an increase in a data rate. For example, if a data rate is increased two times, power assigned to a traffic channel by a mobile station is increased about two times, which means TPR is doubled.
  • a mobile station transmits a data frame over a packet data channel (PDCH) at a rate of 9.6 Kbps (see 210 ).
  • a base station determines whether to increase, decrease, or hold a data rate of a mobile station in consideration of an RoT, a buffer status, and a power status of the corresponding mobile station, generates an RCB according to the determination result, and transmits the generated RCB to the mobile station (see 220 ). Then the mobile station receives the RCB, analyzes the RCB, and determines whether to increase, decrease, or hold a rate of PDCH in the next time interval t2.
  • a base station receives a data frame from a mobile station at a rate of 153.6 Kbps, and in the same time interval, the base station determines to increase a data rate of the mobile station by one step from the current rate of 153.6 Kbps according to conditions of other mobile stations, generates a corresponding RCB(+), and transmits the generated RCB(+) to the mobile station.
  • the RCB(+) is transmitted for a time interval t6
  • a time interval where the RCB(+) is actually applied becomes t7 taking into account a time required when the mobile station receives the RCB(+) and analyzes the RCB(+).
  • the mobile station sets a rate 614.4 Kbps, which is increased one step higher than a rate 307.2 Kbps for the previous time interval t6.
  • a mobile station receives and analyzes a rate control bit (RCB) for an n th time interval.
  • the mobile station determines whether a value of the RCB indicates ‘rate up’. If a value of the rate control bit is ‘+1’, indicating ‘rate up’, in step 330 , the mobile station sets a rate R(n+1) to be used in the next time interval ‘n+1’ to a value (or rate), which is increased one step higher than a rate R(n ⁇ RCD) for a time interval occurring a predetermined RCD ahead of the current time interval, and then proceeds to step 370 .
  • This can be expressed as shown below in Equation 1.
  • step 360 the mobile station sets a rate R(n+1) to be used in the next time interval ‘n+1’ to the same value as a rate R(n ⁇ RCD) for a time interval occurring a predetermined RCD ahead of the current time interval. This can be expressed as shown below in Equation 3.
  • step 370 the mobile station transmits a data frame in the next time interval ‘n+1’ according to the determined rate R(n+1).
  • FIG. 7 is a flowchart illustrating an operation of a base station in a system employing HARQ technology and energy reduction technology according to another embodiment of the present invention.
  • FIG. 8 is a timing diagram illustrating an operation of determining a reverse rate by a mobile station in a system employing HARQ technology and energy reduction technology according to another embodiment of the present invention.
  • the height of a packet data channel denotes a channel gain.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Human Computer Interaction (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Communication Control (AREA)
  • Traffic Control Systems (AREA)
US10/794,992 2003-03-05 2004-03-05 Method and apparatus for controlling a reverse traffic rate in a mobile communication system Abandoned US20040174846A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US12/431,457 US9967899B2 (en) 2003-03-05 2009-04-28 Method and apparatus for controlling an uplink transmission power ratio in a mobile communication system
US12/493,930 US20090262720A1 (en) 2003-03-05 2009-06-29 Method and apparatus for controlling a reverse traffic rate in a mobile communication system

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20030013838 2003-03-05
KR13838/2003 2003-03-05
KR60631/2003 2003-08-30
KR20030060631 2003-08-30

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US12/431,457 Continuation US9967899B2 (en) 2003-03-05 2009-04-28 Method and apparatus for controlling an uplink transmission power ratio in a mobile communication system
US12/493,930 Continuation US20090262720A1 (en) 2003-03-05 2009-06-29 Method and apparatus for controlling a reverse traffic rate in a mobile communication system

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US20040174846A1 true US20040174846A1 (en) 2004-09-09

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US10/794,992 Abandoned US20040174846A1 (en) 2003-03-05 2004-03-05 Method and apparatus for controlling a reverse traffic rate in a mobile communication system
US12/431,457 Active 2026-12-11 US9967899B2 (en) 2003-03-05 2009-04-28 Method and apparatus for controlling an uplink transmission power ratio in a mobile communication system
US12/493,930 Abandoned US20090262720A1 (en) 2003-03-05 2009-06-29 Method and apparatus for controlling a reverse traffic rate in a mobile communication system

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US12/493,930 Abandoned US20090262720A1 (en) 2003-03-05 2009-06-29 Method and apparatus for controlling a reverse traffic rate in a mobile communication system

Country Status (12)

Country Link
US (3) US20040174846A1 (fr)
EP (1) EP1455492B1 (fr)
JP (1) JP4308206B2 (fr)
KR (1) KR100640331B1 (fr)
AT (1) ATE527782T1 (fr)
AU (1) AU2004217203C1 (fr)
BR (1) BRPI0408084B1 (fr)
CA (1) CA2513455C (fr)
DK (1) DK1455492T3 (fr)
PL (1) PL1455492T3 (fr)
RU (1) RU2302694C2 (fr)
WO (1) WO2004079944A1 (fr)

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KR20040079326A (ko) 2004-09-14
EP1455492B1 (fr) 2011-10-05
WO2004079944A1 (fr) 2004-09-16
US20090215485A1 (en) 2009-08-27
ATE527782T1 (de) 2011-10-15
KR100640331B1 (ko) 2006-10-30
US9967899B2 (en) 2018-05-08
CA2513455C (fr) 2013-12-03
JP4308206B2 (ja) 2009-08-05
BRPI0408084B1 (pt) 2017-11-21
RU2005127600A (ru) 2006-01-27
RU2302694C2 (ru) 2007-07-10
PL1455492T3 (pl) 2012-03-30
EP1455492A2 (fr) 2004-09-08
AU2004217203A1 (en) 2004-09-16
US20090262720A1 (en) 2009-10-22
JP2006514515A (ja) 2006-04-27
DK1455492T3 (da) 2012-01-16
AU2004217203C1 (en) 2008-07-24
BRPI0408084A (pt) 2006-02-14
CA2513455A1 (fr) 2004-09-16
AU2004217203B2 (en) 2007-11-01
EP1455492A3 (fr) 2010-04-07

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