JP4995994B2 - 無線通信システムにおける無線リソース割当方法 - Google Patents
無線通信システムにおける無線リソース割当方法 Download PDFInfo
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- JP4995994B2 JP4995994B2 JP2012049342A JP2012049342A JP4995994B2 JP 4995994 B2 JP4995994 B2 JP 4995994B2 JP 2012049342 A JP2012049342 A JP 2012049342A JP 2012049342 A JP2012049342 A JP 2012049342A JP 4995994 B2 JP4995994 B2 JP 4995994B2
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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 signaling, i.e. of overhead other than pilot signals
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- 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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1812—Hybrid protocols; Hybrid automatic repeat request [HARQ]
- H04L1/1819—Hybrid protocols; Hybrid automatic repeat request [HARQ] with retransmission of additional or different redundancy
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- 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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1829—Arrangements specially adapted for the receiver end
- H04L1/1835—Buffer management
-
- 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
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/188—Time-out mechanisms
-
- 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
- H04L5/0078—Timing of allocation
- H04L5/0085—Timing of allocation when channel conditions change
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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
-
- 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), DMT
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- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Description
図7の実施例をより一般的に説明すると、次の通りである。すなわち、ユーザー端末は、ユーザー端末のバッファ状態を指示する第1BSRを基地局に伝送する。第1BSRの伝送に成功した後、既に設定された所定時間が経過するまで上りリンクデータの伝送のための無線リソースの割当を指示する割当情報を受信できなかった場合、ユーザー端末は、第2BSRの伝送手順をトリガーする。この時、第2BSRの伝送手順は、RACH手順またはSRチャネルの伝送手順を通じて行われることができる。ユーザー端末に周期的にSRチャネルが設定された場合、このユーザー端末は、RACHプリアンブル伝送のための無線リソースとSRチャネル用無線リソースのうち、割当時点が早いものを用いてBSR伝送手順を行うことが好ましい。
Claims (6)
- 無線通信システムにおけるユーザ端末(UE)へのバッファ状態報告の伝送方法であって、
前記ユーザ端末(UE)のバッファ状態を指示する第1バッファ状態報告を含む第1メディアアクセス制御プロトコールデータユニット(MAC PDU)を基地局へ伝送する段階と、
前記第1バッファ状態報告を伝送した後で所定期間が経過するまでに、前記基地局からアップリンクデータの伝送のためのアップリンクチャネルリソース割当を指示する割当情報を受信するかを前記ユーザ端末(UE)により、確認する段階と、
前記第1バッファ状態報告を伝送した後で前記所定期間が経過するまでに、前記ユーザ端末(UE)が前記割当情報を受信しない場合には、第2バッファ状態報告の手続をトリガする段階と、
前記第2バッファ状態報告の手続がトリガされた後に、前記第2バッファ状態報告の伝送のためのアップリンクチャネルリソースを前記ユーザ端末(UE)が割り当てたかを確認する段階と、
前記ユーザ端末(UE)が前記の割り当てられたアップリンクチャネルリソースを有する場合に、前記割り当てられたアップリンクチャネルリソースについての前記第2バッファ状態報告を含む第2MAC PDUを伝送する段階と、
前記ユーザ端末が前記割り当てられたアップリンクチャネルリソースを有さない場合に、前記基地局への前記第2バッファ状態報告の伝送のためのアップリンクチャネルリソースの割当を要求するための1ビット情報を含むスケジューリング要求(SR)を伝送する段階と、
前記第1バッファ状態報告と前記第2バッファ状態報告のそれぞれは、ショートバッファ状態報告(ショートBSR)又はロングバッファ状態報告(ロングBSR)のいずれかであり、
前記ショートバッファ状態報告は1つの論理チャネルグループのデータ量を指示するための1つのバッファサイズフィールドを含み、前記ロングバッファ状態報告は4つの論理チャネルグループのデータ量を指示するための4つのバッファサイズフィールドを含み、
論理チャネルグループは最大4つの論理チャネルを含み、
前記第1及び第2MAC PDUのそれぞれのヘッダは、前記第1バッファ状態報告と前記第2バッファ状態報告のいずれかが前記ショートバッファ状態報告又は前記ロングバッファ状態報告のいずれかであるかを指示する識別子を含む、
伝送方法。 - 前記割当情報は、前記アップリンクデータの初期伝送のためのアップリンクチャネルリソースの割当に用いられる、請求項1に記載の伝送方法。
- 肯定確認応答が前記第1バッファ状態報告に対応して前記基地局から受信されたときに、前記所定期間が経過したか又は開始していないかをタイマが確認する、請求項1に記載の伝送方法。
- 前記スケジューリング要求が所定回数繰り返し伝送された後であっても、前記ユーザ端末(UE)に前記アップリンクチャネルリソースが割り当てられない場合には、前記ユーザ端末(UE)は、ランダムアクセス手順を開始する、請求項1に記載の伝送方法。
- 前記所定回数前記スケジューリング要求(SR)を伝送する間に、前記UEに前記アップリンク無線リソースが割当られる場合には、前記ユーザ端末(UE)は前記スケジューリング要求(SR)の伝送を終了する、請求項4に記載の伝送方法。
- システム情報又は無線リソース制御(RRC)メッセージに含まれる、前記所定回数を指示する情報が前記UEにより受信される、請求項4に記載の伝送方法。
Applications Claiming Priority (14)
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US97192107P | 2007-09-13 | 2007-09-13 | |
US60/971,921 | 2007-09-13 | ||
US97344207P | 2007-09-18 | 2007-09-18 | |
US60/973,442 | 2007-09-18 | ||
US97407207P | 2007-09-20 | 2007-09-20 | |
US60/974,072 | 2007-09-20 | ||
US97558207P | 2007-09-27 | 2007-09-27 | |
US60/975,582 | 2007-09-27 | ||
US97676607P | 2007-10-01 | 2007-10-01 | |
US60/976,766 | 2007-10-01 | ||
US3909508P | 2008-03-24 | 2008-03-24 | |
US61/039,095 | 2008-03-24 | ||
KR10-2008-0089719 | 2008-09-11 | ||
KR1020080089719A KR100937432B1 (ko) | 2007-09-13 | 2008-09-11 | 무선 통신 시스템에서의 무선자원 할당 방법 |
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EP (1) | EP2432290B1 (ja) |
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CN (2) | CN101803237B (ja) |
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