KR970055719A - Traffic Capacity Control Method of Base Station in CDMA Mobile Communication System - Google Patents

Traffic Capacity Control Method of Base Station in CDMA Mobile Communication System Download PDF

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Publication number
KR970055719A
KR970055719A KR1019950047868A KR19950047868A KR970055719A KR 970055719 A KR970055719 A KR 970055719A KR 1019950047868 A KR1019950047868 A KR 1019950047868A KR 19950047868 A KR19950047868 A KR 19950047868A KR 970055719 A KR970055719 A KR 970055719A
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South Korea
Prior art keywords
mobile stations
maximum value
base station
stations
noise level
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KR1019950047868A
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Korean (ko)
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KR0170187B1 (en
Inventor
이숙진
엄화영
임순용
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양승택
한국전자통신연구원
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Priority to KR1019950047868A priority Critical patent/KR0170187B1/en
Publication of KR970055719A publication Critical patent/KR970055719A/en
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Publication of KR0170187B1 publication Critical patent/KR0170187B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR or Eb/lo
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/08—Load balancing or load distribution
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/06—TPC algorithms
    • H04W52/12—Outer and inner loops
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. Transmission Power Control [TPC] or power classes
    • H04W52/04—Transmission power control [TPC]
    • H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
    • H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

본 발명은 CDMA 이동통신 시스템에서의 통화 블럭킹 현상은 주로 다른 사용자들의 통화에 기인하여 간섭잡음 레벨량이 일정 수준 이상될 때 일어나는 현상이므로 상기 시스템에서 트래픽 제어는 통화 블럭킹이 일어나지 않도록 간섭 잡음레벨이 강한 셀에서의 간섭 잡음레벨이 감소되도록 제어하기 위한 것으로 기지국과 제어국이 이동국의 최대 Eb/No를 관리하여 간섭 잡음레벨이 큰 기지국의 MSR. 이 MSRsc_th보다 크고, 인접 셀의 MSR이 MSRnc_th보다 작은 경우, 해당 기지국의 파일럿 채널 전력을 감소시켜 간섭 간섭 잡음레벨량을 제어하여 시스템 운용중에도 부하가 심한 셀의 크기를 조정함으로써 시스템의 트래픽을 능동적으로 관리할수 있다.In the present invention, since the call blocking phenomenon in the CDMA mobile communication system occurs mainly when the amount of interference noise level is caused by a call of other users, the interference control is performed in a cell with a strong interference noise level so that the call blocking does not occur. In order to control the interference noise level in the MSR, the base station and the control station manages the maximum Eb / No of the mobile station MSR of the base station having a large interference noise level. If the MSRsc_th is larger than the MSRsc_th and the MSR of the neighboring cell is smaller than the MSRnc_th, the pilot channel power of the corresponding base station is reduced to control the amount of interference interference noise level so that the traffic of the system can be actively controlled by adjusting the size of the heavy cell during system operation. Can manage

Description

CDMA 이동통신 시스템에서의 기지국의 트래픽용량 제어방법Traffic Capacity Control Method of Base Station in CDMA Mobile Communication System

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명이 적용되는 CDMA 이동통신 시스템에서의 간략 구조도.1 is a simplified structural diagram of a CDMA mobile communication system to which the present invention is applied.

제2도는 본 발명이 적용되는 CDMA 이동통신 시스템에서의 폐쇄 루프 전력 제어 흐름도.2 is a closed loop power control flowchart in a CDMA mobile communication system to which the present invention is applied.

Claims (1)

CDMA 시스템에서의 불균등하게 분포된 이동국을 제어하는데 있어서 전체 서비스되는 이동국의 수와 최대값 Eb/No를 갖는 이송국의 수의 변수를 설정하는 제1과정과; 트랜스코더에서 아우터-루프 전력제어를 수행하여 기준 Eb/No가 최대 Eb/No라고 판단되는 경우 제어국으로 이동국의 Eb/No가 최대값임을 알리는 과정과; 상기 제2과정의 Eb/No가 최대값임을 알리는 신호를 수신하여 최대값 Eb/No를 갖는 이동국의 수를 증가시키고 이동국의 수에 대한 최대값 Eb/No를 갖는이동국의 수 비율을 계산하는 제3과정과; 상기 제3과정으로부터 계산된 이동국의 수에 대한 최대값 Eb/No를 갖는 이동국의 수 비율이 임계치의 비율보다 큰 경우 인접 기지국의 수에 대한 최대값 Eb/No를 갖는 이송국의 수 비율과 인접 셀의 이동국의 수에 대한 최대값 Eb/No를 갖는 이동국의수의 임계치를 비교하는 제4과정과; 상기 제4과정으로부터 인업 기지국의 이동국의수에 대한 최대값 Eb/No를 갖는 이동국의 수 비율이 인접 셀의 이동국의 수에 대한 최대값 Eb/No를 갖는이동국의 수의 임계치보다 적은 경우 해당 기지국에 파일럿을 감소시키는 시그널을 송신하는 제5과정과;상기 제5과정으로부터 송신된 시그널을 수신하여 파일럿 신호의 세기를 감소시킴으로써 해당 기지국의 범위를 축소시키는 제6과정을 포함하여 수행되는 것을 특징으로 하는 CDMA 이동통신 시스템에서의 기지국의 트래픽 제어방법.Setting a variable of controlling the unevenly distributed mobile stations in the CDMA system, the parameters of the total number of mobile stations serviced and the number of transfer stations having a maximum value Eb / No; Informing the control station that the Eb / No of the mobile station is the maximum value when the transcoder performs outer-loop power control to determine that the reference Eb / No is the maximum Eb / No; Receiving a signal indicating that Eb / No of the second process is the maximum value, increasing the number of mobile stations having the maximum value Eb / No, and calculating a ratio of the number of mobile stations having the maximum value Eb / No to the number of mobile stations; 3 courses; When the ratio of the number of mobile stations having the maximum value Eb / No to the number of mobile stations calculated from the third process is greater than the ratio of the threshold value, the ratio of the number of transfer stations having the maximum value Eb / No to the number of neighboring base stations is adjacent to the number of mobile stations. A fourth step of comparing the threshold of the number of mobile stations with the maximum value Eb / No for the number of mobile stations in the cell; If the ratio of the number of mobile stations having the maximum value Eb / No to the number of mobile stations of the uplink base station is less than the threshold of the number of mobile stations having the maximum value Eb / No to the number of mobile stations in the neighboring cell from the fourth step; And a fifth step of transmitting a signal for reducing a pilot to a sixth step of receiving a signal transmitted from the fifth step and reducing the strength of a pilot signal to reduce a range of a corresponding base station. A traffic control method of a base station in a CDMA mobile communication system. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019950047868A 1995-12-08 1995-12-08 Control method of traffic carrying capacity of base station of cdma mobile communication system KR0170187B1 (en)

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Application Number Priority Date Filing Date Title
KR1019950047868A KR0170187B1 (en) 1995-12-08 1995-12-08 Control method of traffic carrying capacity of base station of cdma mobile communication system

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Application Number Priority Date Filing Date Title
KR1019950047868A KR0170187B1 (en) 1995-12-08 1995-12-08 Control method of traffic carrying capacity of base station of cdma mobile communication system

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KR970055719A true KR970055719A (en) 1997-07-31
KR0170187B1 KR0170187B1 (en) 1999-03-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6385183B1 (en) 1997-01-29 2002-05-07 Yrp Mobile Telecommunications Key Technology Research Laboratories Co., Ltd. CDMA power control system

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1065604A (en) * 1996-08-23 1998-03-06 Sony Corp Communication method, base station and terminal equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6385183B1 (en) 1997-01-29 2002-05-07 Yrp Mobile Telecommunications Key Technology Research Laboratories Co., Ltd. CDMA power control system
KR100330297B1 (en) * 1997-01-29 2002-08-08 오끼 덴끼 고오교 가부시끼가이샤 CDMA Power Control System

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