KR100696031B1 - 무선 통신 시스템에서 로버스트 핸드오프에 대한 방법 - Google Patents
무선 통신 시스템에서 로버스트 핸드오프에 대한 방법 Download PDFInfo
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- KR100696031B1 KR100696031B1 KR1020017003558A KR20017003558A KR100696031B1 KR 100696031 B1 KR100696031 B1 KR 100696031B1 KR 1020017003558 A KR1020017003558 A KR 1020017003558A KR 20017003558 A KR20017003558 A KR 20017003558A KR 100696031 B1 KR100696031 B1 KR 100696031B1
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- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000004891 communication Methods 0.000 title claims abstract description 34
- 230000001413 cellular effect Effects 0.000 claims description 6
- 238000013468 resource allocation Methods 0.000 claims 2
- 238000005259 measurement Methods 0.000 abstract description 4
- 230000005540 biological transmission Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 5
- 230000010267 cellular communication Effects 0.000 description 3
- 210000004271 bone marrow stromal cell Anatomy 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 1
- 230000008568 cell cell communication Effects 0.000 description 1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
- H04W36/304—Reselection being triggered by specific parameters by measured or perceived connection quality data due to measured or perceived resources with higher communication quality
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
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- Signal Processing (AREA)
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- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
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- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Communication Control (AREA)
- Radar Systems Or Details Thereof (AREA)
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Abstract
Description
상기 다양한 도면에서 동일한 참조 번호들 및 명칭은 동일한 엘리먼트를 지시한다.
도 2는 개시된 장치의 일 실시예에 따른 이동국(200)을 도시한 도면이다. 도 2에 도시된 바와 같이, 이동국(200)은 프론트 엔드(201), 신호 처리기(203), 범용 처리기(205), 및 메모리(207)를 갖는다. 메모리는 "활성 세트"가 저장되어 있는 영역(209), 및 "인접 세트"가 저장되어 있는 영역(211)을 포함한다. 이동국(200)의 구성요소의 각각의 기능은 하기에 기술될 것이다.
Claims (25)
- 다수의 기지국 송수신기에 의해 송신된 신호들의 파워를 이동국에서 측정하는 단계;상기 이동국과 트래픽 채널을 통해 통신하고 있지 않으며, 임계치보다 큰 측정된 신호 파워를 갖는 각각의 기지국 송수신기를 결정하는 단계;상기 결정에 따라 기지국 송수신기들의 표시자들을, 상기 이동국에 의해 활성 세트로 부가하는 단계;트래픽 채널을 통해 상기 이동국과 통신하고 있는 적어도 하나의 기지국 송수신기를 통해 상기 활성 세트로부터 표시자들을 전달하는 단계; 및트래픽 채널을 통해 상기 이동국과 통신하고 있지 않은 상기 전달된 기지국 중 적어도 하나와 상기 이동국 사이에 트래픽 채널을 구축하는 단계를 포함하는,소프트 핸드오프 방법.
- 제 1항에 있어서, 트래픽 채널을 구축한 상기 기지국 송수신기들 중 적어도 하나가 데이터를 상기 이동국으로 전송하도록 명령하는 단계를 더 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 1항에 있어서, 자원 할당 명령을 전송하는 단계를 더 포함하며,상기 자원 할당 명령을 전송하는 단계는 시스템 제어기에 의해 트래픽 채널을 구축한 상기 기지국 송수신기들 중 적어도 하나에게 상기 이동국과의 통신을 준비할 것을 알리는 단계를 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 1항에 있어서, 방향 메시지를 전송하는 단계를 더 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 삭제
- 제 1항에 있어서, 방향 메시지를 수신하는 단계를 더 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 삭제
- 제 6항에 있어서,상기 방향 메시지에 따라 상기 활성 세트 표시자를 조정하는 단계를 더 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 8항에 있어서, 상기 조정 단계는,상기 방향 메시지의 적어도 하나의 표시자와 매칭되지 않는 임의의 표시자를 상기 활성 세트로부터 제거하는 단계를 더 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 1항에 있어서, 상기 표시자들을 부가하는 단계는,인접 송수신기인 상기 결정된 기지국 송수신기들 각각에 대한 표시자를 부가하는 단계를 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 6항에 있어서,상기 방향 메시지를 탐색하기 위하여 상기 활성 세트의 상기 표시자들을 이용하는 단계를 더 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 1항에 있어서, 상기 표시자들을 부가하는 단계는,상기 결정된 기지국 송수신기들 각각에 대한 표시자를 부가하는 단계를 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 삭제
- 제 1항에 있어서,시스템 제어기에 의해 제공되는 적어도 하나의 인접 송수신기의 식별을 상기 이동국의 상기 활성 세트에 부가하는 단계;상기 활성 세트의 상기 식별들을 이용하여 상기 방향 메시지를 탐색하는 단계; 및상기 적어도 하나의 인접 송수신기로부터 상기 방향 메시지를 수신하는 단계를 더 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 삭제
- 제 1항에 있어서, 상기 다수의 기지국 송수신기 중 제1 세트는 셀룰러 시스템의 셀에 대한 커버리지를 제공하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 1항에 있어서, 다수의 기지국 송수신기 중 제2 세트는 셀룰러 시스템의 셀의 섹터에 대한 커버리지를 제공하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 4항에 있어서, 상기 방향 메시지를 전송하는 단계, 상기 전달된 표시자에 의해 식별된 상기 기지국 송수신기들을 통해 방향 메시지를 전송하는 단계를 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 4항에 있어서, 상기 방향 메시지를 전송하는 단계는, 상기 전달된 표시자들에 따라 시스템 제어기에 의해 식별된 적어도 하나의 기지국 송수신기를 통해 방향 메시지를 전송하는 단계를 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 4항에 있어서, 상기 방향 메시지를 전송하는 단계는, 트래픽 채널을 통해 상기 이동국과 통신하지 않는 적어도 하나의 기지국 송수신기를 통해 방향 메시지를 전송하는 단계를 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 6항에 있어서, 상기 방향 메시지를 수신하는 단계는, 트래픽 채널을 통해 상기 이동국과 통신하지 않는 적어도 하나의 기지국 송수신기를 통해 방향 메시지를 수신하는 단계를 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 제 1항에 있어서, 상기 표시자들을 전달하는 단계는 상기 활성 세트에 포함된 상기 표시자들을 전달하는 단계를 포함하는 것을 특징으로 하는 소프트 핸드오프 방법.
- 적어도 하나의 프로세서, 및 청구항1항 내지 22항 중 어느 한 항에 따른 방법을 실행하기 위해 상기 적어도 하나의 프로세서에 의해 실핼될 수 있는 명령들을 포함하는 적어도 하나의 메모리를 포함하는 이동국.
- 청구항1-4, 6, 8-12, 16-22항 중 어느 한 항에 따른 단계들을 실행하도록 적용된 수단들을 포함하는 통신 장치.
- 다수의 기지국 송수신기에 의해 송신된 신호들의 파워를 이동국에서 측정하는 수단;상기 이동국과 트래픽 채널을 통해 통신하고 있지 않으며, 임계치보다 큰 측정된 신호 파워를 갖는 각각의 기지국 송수신기를 결정하는 수단;상기 이동국에 의해 상기 결정에 따라 기지국 송수신기들의 표시자들을 활성 세트로 부가하는 수단;트래픽 채널을 통해 상기 이동국과 통신하고 있는 적어도 하나의 기지국 송수신기를 통해 상기 활성 세트로부터 표시자들을 전달하는 수단; 및트래픽 채널을 통해 상기 이동국과 통신하고 있지 않은 상기 전달된 기지국 중 적어도 하나와 상기 이동국 사이에 트래픽 채널을 구축하는 수단을 포함하는,통신 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/158,665 | 1998-09-22 | ||
US09/158,665 US6360100B1 (en) | 1998-09-22 | 1998-09-22 | Method for robust handoff in wireless communication system |
Publications (2)
Publication Number | Publication Date |
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KR20010075227A KR20010075227A (ko) | 2001-08-09 |
KR100696031B1 true KR100696031B1 (ko) | 2007-03-15 |
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KR1020017003558A KR100696031B1 (ko) | 1998-09-22 | 1999-09-22 | 무선 통신 시스템에서 로버스트 핸드오프에 대한 방법 |
Country Status (17)
Country | Link |
---|---|
US (3) | US6360100B1 (ko) |
EP (3) | EP1765033B1 (ko) |
JP (3) | JP4536926B2 (ko) |
KR (1) | KR100696031B1 (ko) |
CN (2) | CN101394669B (ko) |
AT (2) | ATE349146T1 (ko) |
AU (1) | AU764067B2 (ko) |
BR (1) | BRPI9913883B1 (ko) |
CA (1) | CA2344482C (ko) |
DE (2) | DE69934502T2 (ko) |
ES (1) | ES2332734T3 (ko) |
HK (2) | HK1039015B (ko) |
ID (1) | ID28725A (ko) |
IL (1) | IL141971A0 (ko) |
NO (1) | NO325668B1 (ko) |
RU (1) | RU2233560C2 (ko) |
WO (1) | WO2000018173A1 (ko) |
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