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RU2012149441A - Способ и устройство для использования mbsfn-субкадров для отправки одноадресной информации - Google Patents

Способ и устройство для использования mbsfn-субкадров для отправки одноадресной информации Download PDF

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RU2012149441A
RU2012149441A RU2012149441/07A RU2012149441A RU2012149441A RU 2012149441 A RU2012149441 A RU 2012149441A RU 2012149441/07 A RU2012149441/07 A RU 2012149441/07A RU 2012149441 A RU2012149441 A RU 2012149441A RU 2012149441 A RU2012149441 A RU 2012149441A
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base station
subframe
sending
reserved
reserved subframe
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Аамод Д. КХАНДЕКАР
Хуан МОНТОХО
Нага БХУШАН
Рави ПАЛАНКИ
Тинфан ЦЗИ
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Квэлкомм Инкорпорейтед
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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
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • 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
    • 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
    • H04L5/0057—Physical resource allocation for CQI
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/26—Resource reservation
    • 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
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/143—Downlink power control
    • 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
    • H04W52/244—Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services

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

Abstract

1. Способ уменьшения помех в сети беспроводной связи, содержащий этапы, на которых:резервируют субкадр посредством первой базовой станции для второй базовой станции;отправляют опорный сигнал в первой части зарезервированного субкадра в соответствии с форматом субкадра многоадресной/широковещательной одночастотной сети (MBSFN); ине отправляют передачи или отправляют передачи с низким уровнем мощности передачи в оставшейся части зарезервированного субкадра, чтобы уменьшить помехи для станций, обслуживаемых посредством второй базовой станции.2. Способ по п.1, дополнительно содержащий этап, на котором:отправляют системную информацию, передающую зарезервированный субкадр как MBSFN-субкадр, в станции, обслуживаемые посредством первой базовой станции.3. Способ по п.1, в котором отправка опорного сигнала содержит этап, на котором отправляют опорный сигнал в первых M периодах символа зарезервированного субкадра, где M равно единице или более и зависит от числа антенн в первой базовой станции.4. Способ по п.1, в котором первая базовая станция - это базовая станция с высоким уровнем мощности, а вторая базовая станция - это базовая станция с низким уровнем мощности.5. Способ по п.1, в котором первая базовая станция имеет ограниченный доступ, а вторая базовая станция имеет ограниченный или неограниченный доступ.6. Устройство для беспроводной связи, содержащее:средство для резервирования субкадра посредством первой базовой станции для второй базовой станции;средство для отправки опорного сигнала в первой части зарезервированного субкадра в соответствии с форматом субкадра многоадресной/широковещательной одночастотной сет�

Claims (13)

1. Способ уменьшения помех в сети беспроводной связи, содержащий этапы, на которых:
резервируют субкадр посредством первой базовой станции для второй базовой станции;
отправляют опорный сигнал в первой части зарезервированного субкадра в соответствии с форматом субкадра многоадресной/широковещательной одночастотной сети (MBSFN); и
не отправляют передачи или отправляют передачи с низким уровнем мощности передачи в оставшейся части зарезервированного субкадра, чтобы уменьшить помехи для станций, обслуживаемых посредством второй базовой станции.
2. Способ по п.1, дополнительно содержащий этап, на котором:
отправляют системную информацию, передающую зарезервированный субкадр как MBSFN-субкадр, в станции, обслуживаемые посредством первой базовой станции.
3. Способ по п.1, в котором отправка опорного сигнала содержит этап, на котором отправляют опорный сигнал в первых M периодах символа зарезервированного субкадра, где M равно единице или более и зависит от числа антенн в первой базовой станции.
4. Способ по п.1, в котором первая базовая станция - это базовая станция с высоким уровнем мощности, а вторая базовая станция - это базовая станция с низким уровнем мощности.
5. Способ по п.1, в котором первая базовая станция имеет ограниченный доступ, а вторая базовая станция имеет ограниченный или неограниченный доступ.
6. Устройство для беспроводной связи, содержащее:
средство для резервирования субкадра посредством первой базовой станции для второй базовой станции;
средство для отправки опорного сигнала в первой части зарезервированного субкадра в соответствии с форматом субкадра многоадресной/широковещательной одночастотной сети (MBSFN); и
средство для не отправки передач или отправки передач с низким уровнем мощности передачи в оставшейся части зарезервированного субкадра, чтобы уменьшить помехи для станций, обслуживаемых посредством второй базовой станции.
7. Устройство по п.6, дополнительно содержащее:
средство для отправки системной информации, передающей зарезервированный субкадр как MBSFN-субкадр, в станции, обслуживаемые посредством первой базовой станции.
8. Устройство по п.6, в котором средство для отправки опорного сигнала содержит средство для отправки опорного сигнала в первых M периодах символа зарезервированного субкадра, где M равно единице или более и зависит от числа антенн в первой базовой станции.
9. Способ отправки информации в сети беспроводной связи, содержащий этапы, на которых:
принимают индикатор субкадра, зарезервированного посредством первой базовой станции для второй базовой станции;
не отправляют передачи в первой части зарезервированного субкадра, причем первая часть содержит опорный сигнал, отправляемый посредством первой базовой станции в соответствии с форматом субкадра многоадресной/широковещательной одночастотной сети (MBSFN); и
отправляют передачи во второй части зарезервированного субкадра в станции, обслуживаемые посредством второй базовой станции.
10. Способ по п.9, в котором отправка передач во второй части зарезервированного субкадра содержит этапы, на которых:
отправляют опорный сигнал во второй части зарезервированного субкадра,
отправляют управляющую информацию в, по меньшей мере, одном периоде символа во второй части зарезервированного субкадра, и
отправляют одноадресную информацию в оставшихся периодах символов во второй части зарезервированного субкадра в станции, обслуживаемые посредством второй базовой станции.
11. Способ по п.9, в котором первая часть зарезервированного субкадра содержит M периодов символа, где M равно единице или более и зависит от числа антенн в первой базовой станции.
12. Устройство для беспроводной связи, содержащее:
средство для приема индикатора субкадра, зарезервированного посредством первой базовой станции для второй базовой станции;
средство для предотвращения отправки передач в первой части зарезервированного субкадра, причем первая часть содержит опорный сигнал, отправляемый посредством первой базовой станции в соответствии с форматом субкадра многоадресной/широковещательной одночастотной сети (MBSFN); и
средство для отправки передач во второй части зарезервированного субкадра в станции, обслуживаемые посредством второй базовой станции.
13. Устройство по п.12, в котором средство для отправки передач во второй части зарезервированного субкадра содержит:
средство для отправки опорного сигнала во второй части зарезервированного субкадра,
средство для отправки управляющей информации в, по меньшей мере, одном периоде символа во второй части зарезервированного субкадра, и
средство для отправки одноадресной информации в оставшихся периодах символов во второй части зарезервированного субкадра в станции, обслуживаемые посредством второй базовой станции.
RU2012149441/07A 2008-04-07 2012-11-20 Способ и устройство для использования mbsfn-субкадров для отправки одноадресной информации RU2536856C2 (ru)

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US4310408P 2008-04-07 2008-04-07
US61/043,104 2008-04-07
US12/417,364 2009-04-02
US12/417,364 US8675537B2 (en) 2008-04-07 2009-04-02 Method and apparatus for using MBSFN subframes to send unicast information

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RU2012149441/07A RU2536856C2 (ru) 2008-04-07 2012-11-20 Способ и устройство для использования mbsfn-субкадров для отправки одноадресной информации

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US (1) US8675537B2 (ru)
EP (3) EP3059889B1 (ru)
JP (2) JP5415522B2 (ru)
KR (3) KR101271033B1 (ru)
CN (2) CN103945546B (ru)
AU (1) AU2009233869A1 (ru)
BR (1) BRPI0911163B1 (ru)
CA (2) CA2862970A1 (ru)
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