JP5852193B1 - ユーザ装置 - Google Patents
ユーザ装置 Download PDFInfo
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- JP5852193B1 JP5852193B1 JP2014160761A JP2014160761A JP5852193B1 JP 5852193 B1 JP5852193 B1 JP 5852193B1 JP 2014160761 A JP2014160761 A JP 2014160761A JP 2014160761 A JP2014160761 A JP 2014160761A JP 5852193 B1 JP5852193 B1 JP 5852193B1
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- 238000000034 method Methods 0.000 claims abstract description 73
- 230000008569 process Effects 0.000 claims abstract description 71
- 230000005540 biological transmission Effects 0.000 claims abstract description 60
- 230000009977 dual effect Effects 0.000 claims abstract description 16
- 230000008859 change Effects 0.000 claims description 21
- 238000012217 deletion Methods 0.000 claims description 14
- 230000037430 deletion Effects 0.000 claims description 14
- 230000004044 response Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 abstract description 5
- 238000004891 communication Methods 0.000 description 39
- 238000010586 diagram Methods 0.000 description 16
- 230000002776 aggregation Effects 0.000 description 7
- 238000004220 aggregation Methods 0.000 description 7
- 230000006870 function Effects 0.000 description 7
- 239000000969 carrier Substances 0.000 description 6
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/30—Connection release
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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
- H04L1/1838—Buffer management for semi-reliable protocols, e.g. for less sensitive applications such as streaming video
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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
- H04L1/1848—Time-out mechanisms
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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
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/32—Hierarchical cell structures
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- 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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
- H04W76/15—Setup of multiple wireless link connections
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/04—Network layer protocols, e.g. mobile IP [Internet Protocol]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
- H04W80/06—Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless
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- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Multimedia (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
100 ユーザ装置
110、210 送受信部
120、220 RLCレイヤ処理部
130、230 PDCPレイヤ処理部
200 基地局
Claims (10)
- デュアルコネクティビティによりマスタ基地局とセカンダリ基地局と同時に通信する送受信部と、
前記マスタ基地局のためのRLC(Radio Link Control)レイヤと前記セカンダリ基地局のためのRLCレイヤとを有するRLCレイヤ処理部と、
前記マスタ基地局のためのRLCレイヤと前記セカンダリ基地局のためのRLCレイヤとの間でデータを送受信するPDCP(Packet Data Convergence Protocol)レイヤを有するPDCPレイヤ処理部と、
を有するユーザ装置であって、
前記RLCレイヤ処理部は、前記セカンダリ基地局に対して設定されているスプリットベアラを削除する際、前記セカンダリ基地局のためのRLCレイヤに対して再確立処理を実行し、前記再確立処理の実行後に前記スプリットベアラを解放するユーザ装置。 - 前記RLCレイヤ処理部は、前記再確立処理において前記セカンダリ基地局のためのRLCレイヤに滞留するデータパケットを前記PDCPレイヤ処理部に送信する、請求項1記載のユーザ装置。
- 前記滞留するデータパケットは、前記セカンダリ基地局のためのRLCレイヤにおけるリオーダリング待ちのRLCパケットデータユニットであり、
前記RLCレイヤ処理部は、前記リオーダリング待ちのRLCパケットデータユニットからRLCサービスデータユニットを構成し、前記PDCPレイヤ処理部に送信する、請求項2記載のユーザ装置。 - 前記スプリットベアラの解放がEPS(Evolved Packet System)ベアラ毎の削除である場合、前記RLCレイヤ処理部は、前記セカンダリ基地局のためのRLCレイヤに対して再確立処理を実行することなく、指定されたEPSベアラを削除する、請求項1乃至3何れか一項記載のユーザ装置。
- 前記PDCPレイヤ処理部は、データパケットのアウトオブシーケンスの検出に応答して起動されるリオーダリングタイマを有し、
前記リオーダリングタイマが満了すると、前記PDCPレイヤ処理部は、前記RLCレイヤ処理部から受信したリオーダリング待ちのデータパケットを上位レイヤに送信する、請求項1乃至4何れか一項記載のユーザ装置。 - 前記PDCPレイヤ処理部は、前記RLCレイヤ処理部から受信したリオーダリング待ちのデータパケットが前記マスタ基地局のためのRLCレイヤに対する再確立処理に伴い送信されたものであるか判断し、前記判断の結果に応じて前記リオーダリングタイマを制御する、請求項5記載のユーザ装置。
- 前記リオーダリング待ちのデータパケットが前記マスタ基地局のためのRLCレイヤに対する再確立処理に伴い送信されたものでない場合、前記PDCPレイヤ処理部は、前記リオーダリングタイマが満了すると、前記RLCレイヤ処理部から受信したリオーダリング待ちのデータパケットを上位レイヤに送信する、請求項6記載のユーザ装置。
- 前記リオーダリング待ちのデータパケットが前記マスタ基地局のためのRLCレイヤに対する再確立処理に伴い送信されたものである場合、前記PDCPレイヤ処理部は、ハンドオーバ時又は再接続時におけるリオーダリング処理を実行する、請求項6又は7記載のユーザ装置。
- 前記マスタ基地局と前記セカンダリ基地局とに対して設定されているスプリットベアラにおいてアップリンクデータパケットの送信方向を変更する際、前記RLCレイヤ処理部は、前記マスタ基地局のためのRLCレイヤと前記セカンダリ基地局のためのRLCレイヤとに対して再確立処理を実行し、前記PDCPレイヤ処理部は、前記PDCPレイヤに対して再確立処理を実行する、請求項1乃至8何れか一項記載のユーザ装置。
- 前記再確立処理は、前記送信方向の変更後にアップリンクデータパケットの送信を停止し、前記送信停止されたアップリンクデータパケットを前記送信方向の変更先の基地局に送信するよう前記RLCレイヤと前記PDCPレイヤとを設定する、請求項9記載のユーザ装置。
Priority Applications (5)
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JP2014160761A JP5852193B1 (ja) | 2014-08-06 | 2014-08-06 | ユーザ装置 |
PCT/JP2015/072281 WO2016021661A1 (ja) | 2014-08-06 | 2015-08-05 | ユーザ装置 |
EP15829556.8A EP3179819B1 (en) | 2014-08-06 | 2015-08-05 | User equipment for dual connectivity |
US15/319,662 US11743780B2 (en) | 2014-08-06 | 2015-08-05 | User equipment |
CN201580041494.0A CN106664737A (zh) | 2014-08-06 | 2015-08-05 | 用户装置 |
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US (1) | US11743780B2 (ja) |
EP (1) | EP3179819B1 (ja) |
JP (1) | JP5852193B1 (ja) |
CN (1) | CN106664737A (ja) |
WO (1) | WO2016021661A1 (ja) |
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EP3179819B1 (en) | 2019-06-19 |
EP3179819A1 (en) | 2017-06-14 |
CN106664737A (zh) | 2017-05-10 |
US11743780B2 (en) | 2023-08-29 |
JP2016039459A (ja) | 2016-03-22 |
EP3179819A4 (en) | 2017-07-12 |
US20170303170A1 (en) | 2017-10-19 |
WO2016021661A1 (ja) | 2016-02-11 |
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