WO2014054386A1 - 移動局及び無線基地局 - Google Patents
移動局及び無線基地局 Download PDFInfo
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- WO2014054386A1 WO2014054386A1 PCT/JP2013/074298 JP2013074298W WO2014054386A1 WO 2014054386 A1 WO2014054386 A1 WO 2014054386A1 JP 2013074298 W JP2013074298 W JP 2013074298W WO 2014054386 A1 WO2014054386 A1 WO 2014054386A1
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- cell
- mobile station
- downlink
- uplink
- pucch
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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
- H04W72/04—Wireless resource allocation
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/20—Manipulation of established connections
- H04W76/27—Transitions between radio resource control [RRC] states
Definitions
- the present invention relates to a mobile station and a radio base station.
- PUCCH Physical Uplink Control Channel
- LTE Long Term Evolution
- CQI Channel
- ACK / NACK that is delivery confirmation information for a data signal transmitted in the downlink
- SR Scheduling Request
- the mobile station UE is configured to be able to perform CA (Carrier Aggregation) using a plurality of cells (or CC: Component Carrier).
- CA Carrier Aggregation
- CC Component Carrier
- a Pcell Primary cell
- a Scell Secondary cell
- the mobile station UE can connect to the Pcell and add a Scell as necessary.
- the Pcell is a cell similar to the cell in the LTE system that supports RLM (Radio Link Monitoring), SPS (Semi-Persistent Scheduling), and the like.
- RLM Radio Link Monitoring
- SPS Semi-Persistent Scheduling
- Scell is a cell that is added to Pcell and set for mobile station UE.
- the addition and deletion of Scell is performed by RRC (Radio Resource Control) signaling.
- RRC Radio Resource Control
- the Scell Immediately after being set for the mobile station UE, the Scell is in an inactive state (deactivate state). is there.
- PUCCH Physical Uplink Control Channel
- feedback information (CQI, ACK / NACK, etc.) transmitted via PUCCH should be transmitted to the radio base station eNB that performed each downlink transmission. From the viewpoint, support for PUCCH is also being considered in Scell.
- the radio base station eNB does not know which uplink cell PUCCH should expect to receive such feedback information.
- the present invention has been made in view of the above-described problems, and in CA performed using a plurality of cells supporting PUCCH, which downlink cell feedback information and which uplink cell. It is an object of the present invention to provide a mobile station and a radio base station that can determine whether to transmit via a PUCCH.
- a first feature of the present invention is a mobile station configured to be able to perform carrier aggregation using a plurality of cells that support a physical uplink control channel, and includes a downlink cell and an uplink cell.
- a management unit configured to associate and manage a link cell, and feedback information for a signal transmitted via the downlink cell, for the uplink associated with the downlink cell
- a transmitter configured to transmit via a physical uplink control channel of the cell.
- a second feature of the present invention is a radio base station capable of communicating with a mobile station configured to be able to perform carrier aggregation using a plurality of cells supporting a physical uplink control channel.
- a management unit configured to manage a downlink cell and an uplink cell in association with each other, and feedback information on a signal transmitted to the mobile station via the downlink cell.
- a receiving unit configured to receive via a physical uplink control channel of the uplink cell associated with the link cell.
- a third feature of the present invention is a mobile station configured to be able to perform carrier aggregation using a plurality of component carriers that support a physical uplink control channel.
- the gist of the present invention is to provide a transmitter configured to notify the number of component carriers capable of supporting the physical uplink control channel.
- FIG. 1 is an overall configuration diagram of a mobile communication system according to a first embodiment of the present invention.
- FIG. 2 is a functional block diagram of the radio base station according to the first embodiment of the present invention.
- FIG. 3 is a diagram illustrating an example of an association between a downlink cell and an uplink cell in the mobile communication system according to the first embodiment of the present invention.
- FIG. 4 is a functional block diagram of the mobile station according to the first embodiment of the present invention.
- FIG. 5 is a flowchart showing the operation of the mobile station according to the first embodiment of the present invention.
- FIG. 6 is a diagram for explaining the prior art.
- FIG. 7 is a diagram for explaining the prior art.
- FIG. 8 is a diagram for explaining the prior art.
- Mobile communication system according to the first embodiment of the present invention A mobile communication system according to a first embodiment of the present invention will be described with reference to FIG. 1 to FIG.
- the mobile communication system is an LTE-Advanced mobile communication system, which includes a radio base station eNB that manages Pcells and Scells # 1 to # 3, a mobile station UE, It has.
- Pcell and Scell # 1 to # 3 may be configured to be managed by a plurality of radio base stations eNB, or may be managed by the same radio base station eNB.
- the mobile station UE is configured to perform CA using Pcell / Scell supporting PUCCH.
- PUCCH is supported by both Pcell and Scell.
- the radio base station eNB includes a management unit 11, a transmission unit 12, and a reception unit 13.
- the management unit 11 is configured to associate and manage a downlink cell and an uplink cell that transmits feedback information (CQI, ACK / NACK, etc.) for a signal transmitted via the downlink cell. Has been.
- the management unit 11 associates Pcell as a downlink cell with Scell # 1 as an uplink cell, and uses Scell # 1 as a downlink cell and an uplink cell. Are associated with each other, and Scell # 2 / # 3 as a downlink cell and Scell # 2 as an uplink cell are associated with each other and managed.
- the management unit 11 may be configured to associate and manage the downlink cell and the uplink cell for each mobile station UE.
- management unit 11 may be configured to associate and manage the downlink cell and the uplink cell for each CC or for each CC group.
- the CC group may be grouped in the same manner as the TAG in the Multiple-TA, or in the case of “Inter-site CA”, it may be grouped in the CC under the same radio base station eNB. It may be good or grouped for each band.
- the management unit 11 may be configured to associate and manage the downlink cell and the uplink cell for each type of PUCCH.
- PUCCH for CQI transmission PUCCH for ACK / NACK transmission
- PUCCH for SR transmission PUCCH for SR transmission
- the management unit 11 may be configured to manage the Pcell as the above-described downlink cell and manage the Scell as the above-described uplink cell.
- the management unit 11 may be configured to manage the Scell as the above-described downlink cell and manage the Pcell as the above-described uplink cell.
- the management unit 11 may be configured to manage a plurality of downlink cells in association with one uplink cell.
- the management unit 11 may be configured to manage the downlink cell and the PUCCH resource of the uplink cell in association with each other.
- the transmission unit 12 is configured to transmit various signals to the mobile station UE in the cell under the radio base station eNB, and the reception unit 13 receives the signal from the mobile station UE in the cell under the radio base station eNB. It is configured to receive various signals.
- the transmission part 12 may be comprised so that the cell (Pcell or Scell) which should set above-mentioned PUCCH may be notified with respect to the mobile station UE in the cell under the radio base station eNB.
- the transmission unit 12 may be configured to notify the mobile station UE in the cell under the radio base station eNB of information indicating the association between the downlink cell and the uplink cell. Good.
- the transmission unit 12 sets the PUCCH in an arbitrary layer such as an RRC layer, a PDCP (Packet Data Convergence Protocol) layer, an RLC (Radio Link Control) layer, a MAC layer, a physical layer, or the like, and the association thereof. You may be comprised so that the information to show may be notified.
- RRC Radio Resource Control
- PDCP Packet Data Convergence Protocol
- RLC Radio Link Control
- the reception unit 13 provides feedback information on the signal transmitted from the transmission unit 12 to the mobile station UE via the downlink cell, and transmits the PUCCH (uplink cell PUCCH) associated with the downlink cell.
- the PUCCH uplink cell PUCCH
- it is configured to receive via PUSCH (when it is piggybacked to PUSCH (Physical Uplink Shared Channel)).
- the mobile station UE includes a management unit 21, a reception unit 22, and a transmission unit 23.
- the management unit 21 manages the downlink cell in association with the uplink cell that transmits feedback information for a signal transmitted through the downlink cell. Is configured to do.
- the management unit 21 associates Pcell as a downlink cell with Scell # 1 as an uplink cell, and uses Scell # 1 as a downlink cell and an uplink cell. And Scell # 2 / # 3 as a downlink cell and Scell # 2 as an uplink cell are associated with each other and managed.
- the management unit 21 may be configured to associate and manage the downlink cell and the uplink cell for each CC or for each CC group.
- the management unit 21 may be configured to manage a plurality of downlink cells belonging to the same CC group in association with one uplink cell.
- the CC group may be grouped in the same manner as the TAG in the Multiple-TA, or in the case of “Inter-site CA”, it may be grouped in the CC under the same radio base station eNB. It may be good or grouped for each band.
- management unit 21 may be configured to perform CC grouping based on a multiplexing mode (duplex mode).
- a plurality of CCs may be grouped as a CC group of FDD (Frequency Division Duplex) and a CC group of TDD (Time Division Duplex).
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- management unit 21 may be configured to associate and manage the downlink cell and the uplink cell for each type of PUCCH.
- PUCCH for CQI transmission PUCCH for ACK / NACK transmission
- PUCCH for SR transmission PUCCH for SR transmission
- the management unit 21 may be configured to manage the Pcell as the above-described downlink cell and manage the Scell as the above-described uplink cell.
- management unit 21 may be configured to manage a plurality of downlink cells and one uplink cell in association with each other.
- management unit 21 may be configured to associate and manage the downlink cell and the PUCCH resource of the uplink cell.
- the receiving unit 22 is configured to receive various signals from the radio base station eNB, and the transmitting unit 23 is configured to transmit various signals to the radio base station eNB.
- the reception unit 22 may be configured to acquire information indicating the association between the downlink cell and the uplink cell from the radio base station eNB and transmit the information to the management unit 21. Good.
- the transmission unit 23 provides feedback information on a signal transmitted via the downlink cell to the radio base station eNB in the PUCCH of the uplink cell associated with the downlink cell (or When it is piggybacked to PUSCH (Physical Uplink Shared Channel), it is configured to transmit via PUSCH).
- PUSCH Physical Uplink Shared Channel
- the transmission unit 23 when the transmission unit 23 is piggybacked to PUCCH (or PUSCH) of a predetermined cell (default cell), feedback information for a signal transmitted via a downlink cell that is not associated with an uplink cell May be configured to transmit via PUSCH).
- Modification 1 the mobile communication system according to the first modification of the present invention will be described by focusing on the differences from the mobile communication system according to the first embodiment described above.
- the transmission unit 23 of the mobile station UE according to the first modification is configured to notify the radio base station eNB of capability information indicating the number of CCs (or cells) that can support the PUCCH. Note that the number of CCs (or cells) depends on the capability of the mobile station UE.
- the transmission unit 23 may be configured to notify such capability information for each type of PUCCH.
- the transmission unit 23 may be configured to notify this capability information for each band.
- the transmission unit 23 may be configured to notify such capability information in association with “Multiple-TA capability”.
- load distribution can be performed only by PUCCH types that need to be distributed, and resource utilization efficiency can be improved.
- the management unit 21 is configured to manage the Pcell (primary cell) as the above-described downlink cell and manage the Scell (subcell) as the above-described uplink cell. It may be.
- the transmission unit 23 uses the PUCCH (or PUSCH of a predetermined cell) for feedback information for a signal transmitted via a downlink cell that is not associated with an uplink cell. In the case of piggybacking, it may be configured to transmit via PUSCH).
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
図1乃至図5を参照して、本発明の第1の実施形態に係る移動通信システムについて説明する。
以下、本発明の変更例1に係る移動通システムについて、上述の第1の実施形態に係る移動通信システムとの相違点に着目して説明する。
UE…移動局
11、21…管理部
12、23…送信部
13、22…受信部
Claims (10)
- 物理上りリンク制御チャネルをサポートしている複数のセルを用いてキャリアアグリゲーションを行うことができるように構成されている移動局であって、
下りリンク用セルと上りリンク用セルとを関連付けて管理するように構成されている管理部と、
前記下りリンク用セルを介して送信された信号に対するフィードバック情報を、該下りリンク用セルに関連付けられている前記上りリンク用セルの物理上りリンク制御チャネルを介して送信するように構成されている送信部とを具備することを特徴とする移動局。 - 前記管理部は、コンポーネントキャリアごとに、或いは、コンポーネントキャリアのグループごとに、前記下りリンク用セルと前記上りリンク用セルとを関連付けて管理するように構成されていることを特徴とする請求項1に記載の移動局。
- 前記管理部は、前記物理上りリンク制御チャネルの種別ごとに、前記下りリンク用セルと前記上りリンク用セルとを関連付けて管理するように構成されていることを特徴とする請求項1に記載の移動局。
- 前記管理部は、前記下りリンク用セルとして主セルを管理し、前記上りリンク用セルとして副セルを管理するように構成されていることを特徴とする請求項1に記載の移動局。
- 前記送信部は、上りリンク用セルに関連付けられていない下りリンク用セルを介して送信された信号に対するフィードバック情報については、所定セルの物理上りリンク制御チャネルを介して送信するように構成されていることを特徴とする請求項1に記載の移動局。
- 前記管理部は、複数の下りリンク用セルと1つの上りリンク用セルとを関連付けて管理するように構成されていることを特徴とする請求項1に記載の移動局。
- 前記管理部は、前記下りリンク用セルと前記上りリンク用セルの物理上りリンク制御チャネル用リソースとを関連付けて管理するように構成されていることを特徴とする請求項1に記載の移動局。
- 物理上りリンク制御チャネルをサポートしている複数のセルを用いてキャリアアグリゲーションを行うことができるように構成されている移動局と通信可能な無線基地局であって、
下りリンク用セルと上りリンク用セルとを関連付けて管理するように構成されている管理部と、
前記移動局に対して前記下りリンク用セルを介して送信した信号に対するフィードバック情報を、該下りリンク用セルに関連付けられている前記上りリンク用セルの物理上りリンク制御チャネルを介して受信するように構成されている受信部とを具備することを特徴とする無線基地局。 - 物理上りリンク制御チャネルをサポートしている複数のコンポーネントキャリアを用いてキャリアアグリゲーションを行うことができるように構成されている移動局であって、
無線基地局に対して、前記物理上りリンク制御チャネルをサポート可能なコンポーネントキャリアの数を通知するように構成されている送信部を具備することを特徴とする移動局。 - 前記管理部は、多重化モードに基づいて、前記コンポーネントキャリアのグルーピングを行うように構成されていることを特徴とする請求項2に記載の移動局。
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020157006977A KR20150064031A (ko) | 2012-10-04 | 2013-09-10 | 이동국 및 무선기지국 |
| EP13844151.4A EP2906007A4 (en) | 2012-10-04 | 2013-09-10 | MOBILE STATION AND WIRELESS BASE STATION |
| CN201380052011.8A CN104704899A (zh) | 2012-10-04 | 2013-09-10 | 移动台以及无线基站 |
| US14/433,291 US20150264679A1 (en) | 2012-10-04 | 2013-09-10 | Mobile station and radio base station |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012222251 | 2012-10-04 | ||
| JP2012-222251 | 2012-10-04 | ||
| JP2013-023464 | 2013-02-08 | ||
| JP2013023464A JP2014090396A (ja) | 2012-10-04 | 2013-02-08 | 移動局及び無線基地局 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014054386A1 true WO2014054386A1 (ja) | 2014-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| PCT/JP2013/074298 Ceased WO2014054386A1 (ja) | 2012-10-04 | 2013-09-10 | 移動局及び無線基地局 |
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| Country | Link |
|---|---|
| US (1) | US20150264679A1 (ja) |
| EP (1) | EP2906007A4 (ja) |
| JP (1) | JP2014090396A (ja) |
| KR (1) | KR20150064031A (ja) |
| CN (1) | CN104704899A (ja) |
| WO (1) | WO2014054386A1 (ja) |
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| EP3242519A4 (en) * | 2015-01-29 | 2018-01-03 | Huawei Technologies Co., Ltd. | Pucch allocation method and apparatus |
| US10448376B2 (en) | 2015-01-29 | 2019-10-15 | Huawei Technologies Co., Ltd. | PUCCH configuration method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104704899A (zh) | 2015-06-10 |
| EP2906007A4 (en) | 2016-05-25 |
| EP2906007A1 (en) | 2015-08-12 |
| JP2014090396A (ja) | 2014-05-15 |
| US20150264679A1 (en) | 2015-09-17 |
| KR20150064031A (ko) | 2015-06-10 |
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