KR102014792B1 - 상향링크 신호 전송 전력을 제어하는 단말 장치 및 그 방법 - Google Patents
상향링크 신호 전송 전력을 제어하는 단말 장치 및 그 방법 Download PDFInfo
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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]
- H04W52/30—Transmission power control [TPC] using constraints in the total amount of available transmission power
- H04W52/36—Transmission power control [TPC] using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0014—Three-dimensional division
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- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/10—Flow control between communication endpoints
- H04W28/12—Flow control between communication endpoints using signalling between network elements
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- 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
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
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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
- H04W52/243—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account interferences
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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]
- H04W52/30—Transmission power control [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
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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]
- H04W52/30—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
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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]
- H04W52/30—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
- H04W52/346—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading distributing total power among users or channels
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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]
- H04W52/38—TPC being performed in particular situations
- H04W52/50—TPC being performed in particular situations at the moment of starting communication in a multiple access environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0473—Wireless resource allocation based on the type of the allocated resource the resource being transmission power
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/51—Allocation or scheduling criteria for wireless resources based on terminal or device properties
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signalling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
- H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0833—Random access procedures, e.g. with 4-step access
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
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Abstract
Description
도 1은 무선 통신 시스템(100)에서의 기지국(105) 및 단말기(110)의 구성을 도시한 블록도,
도 2는 이동통신 시스템의 일 예인 3GPP LTE 시스템에서 사용되는 무선 프레임의 구조를 예시하는 도면,
도 3은 이동통신 시스템의 일 예인 3GPP LTE 시스템의 하향링크 및 상향링크 서브프레임의 구조를 나타낸 도면,
도 4는 3GPP LTE 시스템에서 하향링크의 시간-주파수 자원 격자 구조(resource grid structure)를 나타낸 도면,
도 5는 단말이 상향링크 신호를 전송하기 위한 신호 처리 과정을 설명하기 위한 도면,
도 6(a)은 기지국의 다중 캐리어(Multiple carrier)를 설명하기 위한 도면,
도 6(b)는 단말의 다중 캐리어(Multiple carrier)를 설명하기 위한 도면,
도 7(a)은 기지국의 다중 캐리어(Multiple carrier)를 설명하기 위한 도면,
도 7(b)는 단말의 다중 캐리어(Multiple carrier)를 설명하기 위한 도면,
도 8(a)은 기지국의 다중 캐리어(Multiple carrier)를 설명하기 위한 도면,
도 8(b)는 단말의 다중 캐리어(Multiple carrier)를 설명하기 위한 도면,
도 9는 기지국 및 RRH 구조의 일 예를 도시한 도면, 그리고,
도 10은 본 발명이 적용되는 다중 노드 통신 환경의 일 예를 나타내는 도면이다.
Claims (16)
- 무선통신 시스템에서 단말이 전송 전력을 제어하는 방법에 있어서,
소정 시간 구간에서 제 1 서빙 셀(serving cell)의 물리 랜덤 액세스 채널(physical random access channel, PRACH) 전송과 제 2 서빙 셀의 사운딩 참조 신호(Sounding Reference Signal, SRS) 전송이 오버랩(overlap)되는 경우에 기초하여 상기 PRACH 전송을 위한 PRACH 전송 전력과 상기 SRS 전송을 위한 SRS 전송 전력의 전송 전력 합이 상기 단말에 설정된 최대 전송 전력을 초과하는지 여부를 체크하는 단계; 및
상기 소정 시간 구간 내에서 상기 전송 전력 합이 상기 단말에 설정된 최대 전송 전력을 초과하는 경우에 기초하여 상기 SRS 전송 보다 상기 PRACH 전송에 우선적으로 전송 전력을 할당하는 단계를 포함하는, 전송 전력 제어 방법. - 제 1항에 있어서,
상기 PRACH 전송을 위해 우선적으로 할당된 전송 전력에 기초하여 상기 PRACH를 상기 제 1 서빙 셀 상에서 전송하는 단계를 더 포함하는, 전송 전력 제어 방법. - 제 1항에 있어서,
상기 SRS 전송 보다 상기 PRACH 전송에 우선적으로 전송 전력을 할당하되 상기 전송 전력 합이 상기 단말에 설정된 최대 전송 전력을 초과하지 않도록 할당하는, 전송 전력 제어 방법. - 제 1항에 있어서,
상기 제 1 서빙 셀은 제 1 타이밍 어드밴스 그룹(Timing Advance Group, TAG)에 속하고 상기 제 2 서빙 셀은 제 2 TAG에 속하는, 전송 전력 제어 방법. - 삭제
- 무선통신 시스템에서 전송 전력을 제어하는 단말에 있어서,
소정 시간 구간에서 제 1 서빙 셀(serving cell)의 물리 랜덤 액세스 채널(physical random access channel, PRACH) 전송과 제 2 서빙 셀의 사운딩 참조 신호(Sounding Reference Signal, SRS) 전송이 오버랩(overlap)되는 경우에 기초하여 상기 PRACH 전송을 위한 PRACH 전송 전력과 상기 SRS 전송을 위한 SRS 전송 전력의 전송 전력 합이 상기 단말에 설정된 최대 전송 전력을 초과하는지 여부를 체크하고,
상기 소정 시간 구간 내에서 상기 전송 전력 합이 상기 단말에 설정된 최대 전송 전력을 초과하는 경우에 기초하여, 상기 SRS 전송 보다 상기 PRACH 전송에 우선적으로 전송 전력을 할당하는 프로세서를 포함하는, 단말. - 제 6항에 있어서,
상기 PRACH 전송을 위해 우선적으로 할당된 전송 전력에 기초하여 상기 PRACH를 상기 제 1 서빙 셀 상에서 전송하는 송신기를 더 포함하는, 단말. - 제 6항에 있어서,
상기 프로세서는 상기 SRS 전송 보다 상기 PRACH 전송에 우선적으로 전송 전력을 할당하되 상기 전송 전력 합이 상기 단말에 설정된 최대 전송 전력을 초과하지 않도록 할당하는, 단말. - 제 6항에 있어서,
상기 제 1 서빙 셀은 제 1 타이밍 어드밴스 그룹(Timing Advance Group, TAG)에 속하고 상기 제 2 서빙 셀은 제 2 TAG에 속하는, 단말. - 삭제
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Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161537066P | 2011-09-21 | 2011-09-21 | |
| US61/537,066 | 2011-09-21 | ||
| US201161540522P | 2011-09-28 | 2011-09-28 | |
| US61/540,522 | 2011-09-28 | ||
| PCT/KR2012/007584 WO2013042980A2 (ko) | 2011-09-21 | 2012-09-21 | 상향링크 신호 전송 전력을 제어하는 단말 장치 및 그 방법 |
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| Publication Number | Publication Date |
|---|---|
| KR20140066710A KR20140066710A (ko) | 2014-06-02 |
| KR102014792B1 true KR102014792B1 (ko) | 2019-08-27 |
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| KR1020147004591A Active KR102014792B1 (ko) | 2011-09-21 | 2012-09-21 | 상향링크 신호 전송 전력을 제어하는 단말 장치 및 그 방법 |
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| Country | Link |
|---|---|
| US (3) | US9295012B2 (ko) |
| EP (3) | EP3451747B1 (ko) |
| JP (3) | JP5727100B2 (ko) |
| KR (1) | KR102014792B1 (ko) |
| CN (3) | CN107197512B (ko) |
| ES (1) | ES2663837T3 (ko) |
| WO (1) | WO2013042980A2 (ko) |
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