JP4903033B2 - 無線通信基地局装置及び無線通信方法 - Google Patents
無線通信基地局装置及び無線通信方法 Download PDFInfo
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- JP4903033B2 JP4903033B2 JP2006344925A JP2006344925A JP4903033B2 JP 4903033 B2 JP4903033 B2 JP 4903033B2 JP 2006344925 A JP2006344925 A JP 2006344925A JP 2006344925 A JP2006344925 A JP 2006344925A JP 4903033 B2 JP4903033 B2 JP 4903033B2
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- Prior art keywords
- mbms
- information
- sib
- sfn
- sfn operation
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Classifications
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- 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
- H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
-
- 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)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Small-Scale Networks (AREA)
Description
3GPP TS25.346 "Introduction of the Multimedia Broadcast Multicast Service in the Radio Access Network" 3GPP TS25.331 "Radio Resource Control"
図1は、本発明の実施の形態1に係るMIB, MBMS SB, MBMS SIBの関係を示す図である。UMTSでは、MCCHとして定義されている複数のMessageが報知情報の形態、すなわち、System information block (SIB)とは異なる体系で送信されていたが、ここでは、図1に示したように、MBMS用のSIB(以下、「MBMS SIB」という)として定義されている。なお、SIBの単位としては、UMTSのMCCHでのmessage毎として考えることができる。例えば、MBMS MODIFIED SERVICES INFORMATIONに該当するような情報を伝送するSIBを一つ定義し、MBMS UNMODIFIED SERVICES INFORMATIONに該当するような情報を伝送するSIBを一つ定義するなどである。ただし、SIBの割り当て方としては、上記の方法に限らず、別の方法を用いてもかまわない。
LTE (Long Term Evolution)でのMBMSにおいては、SFN (Single Frequency Network) operationが検討されている。SFN operationとは、複数の基地局から同じ周波数帯域で同じタイミングで同一情報を送信することにより、信号を無線上で合成する機能である。このSFN operationにより、セルエッジに存在するような端末の受信品質を大幅に改善することが可能である。
実施の形態2では、SFN operation用のMBMSデータに対する制御情報(MCCH)をSFN operationを行い、Non SFN operation用のMBMSデータに対する制御情報(MCCH)をNon SFN operationを行う場合について説明したが、SFN operationを行うか、Non SFN operationを行うかがMBMS制御手順であるProcedureの途中で変わることが考えられる。
UMTSにおいて、MBMS Indication Channel (MICH)が定義されており、これによりMCCHの受信を端末に対して指示することが可能となっている。より詳細には、図19に示すようにMICHが、次のModification periodの最初からMCCHのNotification message (MBMS MODIFIED SERVICES INFORMATION、MBMS UNMODIFIED SERVICES INFORMATION)を受信することを促すような動作となっている。また、ここで、MICHとしては複数のサービスをまとめたIDを用いて端末に対する指示を行う。そのため、端末としては実際に受信したいサービスに対する通知ではない場合もある。よって、端末はNotificationの内容を確認して最終的に自分の受信したいサービスが存在するのかを判断するようになる。
102 報知情報データベース部
103 MIB作成部
104 MBMS SB作成部
105、403、801 MBMSデータベース部
106 MBMS SIB作成部
107 送信部
201 SFN対応スケジューリング部
202 SFN対応MBMS SB作成部
203 SFN operation用MBMS SIB作成部
204 Non SFN operation用MBMS SIB作成部
401 受信部
402 Counting処理部
601 報知情報受信部
602 MIB処理部
603 MBMS SB処理部
604 MBMS SIB処理部
605 MBMS制御部
606 MBMS関連Message送信部
607 MBMSデータ受信部
802 MICH作成部
803 L3/L2送信部
804 MICH送信タイミング調整部
805 L1送信部
901 MICH受信部
Claims (4)
- Multimedia Broadcast Multicast Service (MBMS)用の制御情報を報知情報の形態であるSystem Information Block (SIB)としてMBMS SIBを作成するMBMS SIB作成手段と、
前記制御情報のスケジューリング情報を含めてMBMS用のScheduling Block (MBMS SB)を作成するMBMS SB作成手段と、
前記MBMS SBのスケジューリング情報を含めてMaster Information Block (MIB)を作成するMIB作成手段と、
作成された前記MBMS SIB、前記MBMS SB、前記MIBを送信する送信手段と、
MBMS用の制御情報の取得指示を無線通信端末装置に通知するMessageと、前記MBMS SBとが同一の送信単位となるように、送信タイミングを調整する送信タイミング調整手段と、
を具備する無線通信基地局装置。 - 複数の無線通信基地局装置から同一周波数帯及び同一タイミングで同一情報を送信するSingle Frequency Network (SFN) operation用のMBMSデータに対する制御情報と、前記SFN operationを用いないNon SFN operation用のMBMSデータに対する制御情報とをそれぞれスケジューリングするスケジューリング手段を具備する請求項1に記載の無線通信基地局装置。
- 前記無線通信端末装置に通知するMessageにSFN operationを適用するかNon SFN operationを適用するかを示す情報を含めて、前記Messageより先に送信する他のMessageを作成するMessage作成手段を具備する請求項2に記載の無線通信基地局装置。
- 無線通信基地局装置における無線通信方法であって、
Multimedia Broadcast Multicast Service (MBMS)用の制御情報を報知情報の形態であるSystem Information Block (SIB)としてMBMS SIBを作成するMBMS SIB作成工程と、
前記制御情報のスケジューリング情報を含めてMBMS用のScheduling Block (MBMS SB)を作成するMBMS SB作成工程と、
前記MBMS SBのスケジューリング情報を含めてMaster Information Block (MIB)を作成するMIB作成工程と、
作成された前記MBMS SIB、前記MBMS SB、前記MIBを送信する送信工程と、
MBMS用の制御情報の取得指示を無線通信端末装置に通知するMessageと、前記MBMS SBとが同一の送信単位となるように、送信タイミングを調整する送信タイミング調整工程と、
を具備する無線通信方法。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006344925A JP4903033B2 (ja) | 2006-10-30 | 2006-12-21 | 無線通信基地局装置及び無線通信方法 |
US12/377,373 US8270332B2 (en) | 2006-10-30 | 2007-10-12 | Wireless communication base station device and wireless communication method |
EP07829721.5A EP2051410A4 (en) | 2006-10-30 | 2007-10-12 | Radio communication base station device and radio communication method |
CN2007800288939A CN101502025B (zh) | 2006-10-30 | 2007-10-12 | 无线通信基站装置和无线通信方法 |
PCT/JP2007/069985 WO2008053686A1 (en) | 2006-10-30 | 2007-10-12 | Wireless communication base station device and wireless communication method |
US13/590,841 US8582573B2 (en) | 2006-10-30 | 2012-08-21 | Radio communication base station apparatus and radio communication method |
Applications Claiming Priority (3)
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JP2006294728 | 2006-10-30 | ||
JP2006294728 | 2006-10-30 | ||
JP2006344925A JP4903033B2 (ja) | 2006-10-30 | 2006-12-21 | 無線通信基地局装置及び無線通信方法 |
Related Child Applications (1)
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JP2011244485A Division JP5372113B2 (ja) | 2006-10-30 | 2011-11-08 | 無線通信基地局装置 |
Publications (2)
Publication Number | Publication Date |
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JP2008136151A JP2008136151A (ja) | 2008-06-12 |
JP4903033B2 true JP4903033B2 (ja) | 2012-03-21 |
Family
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JP2006344925A Expired - Fee Related JP4903033B2 (ja) | 2006-10-30 | 2006-12-21 | 無線通信基地局装置及び無線通信方法 |
Country Status (4)
Country | Link |
---|---|
US (2) | US8270332B2 (ja) |
EP (1) | EP2051410A4 (ja) |
JP (1) | JP4903033B2 (ja) |
WO (1) | WO2008053686A1 (ja) |
Cited By (1)
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US20220278735A1 (en) * | 2021-02-24 | 2022-09-01 | Bluehalo, Llc | System and method for a digitally beamformed phased array feed |
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- 2007-10-12 US US12/377,373 patent/US8270332B2/en not_active Expired - Fee Related
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Also Published As
Publication number | Publication date |
---|---|
US8270332B2 (en) | 2012-09-18 |
JP2008136151A (ja) | 2008-06-12 |
US20120314645A1 (en) | 2012-12-13 |
WO2008053686A1 (en) | 2008-05-08 |
EP2051410A4 (en) | 2016-06-08 |
US20100234034A1 (en) | 2010-09-16 |
EP2051410A1 (en) | 2009-04-22 |
US8582573B2 (en) | 2013-11-12 |
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