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JPWO2016072717A5
JPWO2016072717A5 JP2017524418A JP2017524418A JPWO2016072717A5 JP WO2016072717 A5 JPWO2016072717 A5 JP WO2016072717A5 JP 2017524418 A JP2017524418 A JP 2017524418A JP 2017524418 A JP2017524418 A JP 2017524418A JP WO2016072717 A5 JPWO2016072717 A5 JP WO2016072717A5
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本明細書で機論されるように、ＬＢＴプロトコルは、物理信号タイプ／物理チャンネルタイプのような送信タイプ又は送信機能に従って異なることができる。その理由の一つは、特定送信タイプのチャンネルアクセスに対するより高い優先順位を可能にし、それによってアンライセンススペクトルで不連続送信を有する制御/データ受信のためにＵＥには粗い同期化を獲得することが重要であるので、粗い同期化に使用されるディスカバリ信号に対してチャンネルアクセスにおいてより高い優先順位が与えられる。もう一つの理由は、同一のサブフレームで複数のＬＡＡセルのディスカバリ信号をより容易に多重化するためである。 As discussed herein, the LBT protocol can vary according to transmission type or transmission function, such as physical signal type / physical channel type. One of the reasons is to allow higher priority for channel access of a particular transmission type, thereby gaining coarse synchronization for the UE for control / data reception with discontinuous transmission in the unlicensed spectrum. Is important, so that the discovery signal used for coarse synchronization is given a higher priority in channel access. Another reason is to more easily multiplex the discovery signals of multiple LAA cells in the same subframe.

本発明の実施形態による方法は、無線通信システムにおける免許帯域に対応する第１の周波数帯域と非免許帯域に対応する第２の周波数帯域とに基づく通信サービスをサポートする基地局の方法であって、前記第２の周波数帯域を利用し、第１のＬＢＴ（listen-before-talk）プロトコルに関連するチャンネル上で送信するデータが存在する場合、予め決定された範囲内で選択されたランダム数をカウンタの初期値として割り当てるステップと、スロット区間の間に、前記第２の周波数帯域を利用する前記チャンネルがアイドル状態であるか否かをセンシングするステップと、前記センシングされたスロット区間の間、前記チャンネルがアイドル状態であり、前記カウンタが０より大きい場合、前記カウンタを１ずつ減少させるステップと、前記カウンタが０に到達し、前記センシングされたスロット区間がアイドル状態であると、前記チャンネル上でデータを送信するステップと、を含み、前記選択されたランダム数から１ずつ減少される前記カウンタが０より大きい間には、前記スロット区間の後に続くスロット区間ごとに前記センシングするステップ及び前記減少させるステップが反復され、前記基地局は、第２のＬＢＴ（listen-before-talk）プロトコルに関連する信号送信のための少なくとも一つのスロット区間の間に前記カウンタを減少させず、ＬＢＴ（listen-before-talk）プロトコルは、物理信号タイプ／物理チャンネルタイプに従って異なることを特徴とする。
本発明の実施形態による装置は、無線通信システムにおける免許帯域に対応する第１の周波数帯域と非免許帯域に対応する第２の周波数帯域とに基づく通信サービスをサポートする基地局であって、送信部と、前記第２の周波数帯域を利用し、第１のＬＢＴ（listen-before-talk）プロトコルに関連するチャンネル上で送信するデータが存在する場合、予め決定された範囲内で選択されたランダム数をカウンタの初期値として割り当てて、スロット区間の間に前記第２の周波数帯域を利用する前記チャンネルがアイドル状態であるか否かをセンシングし、前記センシングされたスロット区間の間、前記チャンネルがアイドル状態であり、前記カウンタが０より大きい場合、前記カウンタを１ずつ減少させて、前記カウンタが０に到達し、前記センシングされたスロット区間がアイドル状態であると、前記チャンネル上でデータを送信するように前記送信部を制御する制御部と、を含み、前記選択されたランダム数から１ずつ減少される前記カウンタが０より大きい間には、前記スロット区間の後に続くスロット区間ごとに前記センシング及び前記減少が反復され、前記基地局は、第２のＬＢＴ（listen-before-talk）プロトコルに関連する信号送信のための少なくとも一つのスロット区間の間に前記カウンタを減少させず、ＬＢＴ（listen-before-talk）プロトコルは、物理信号タイプ／物理チャンネルタイプに従って異なることを特徴とする。 The method according to the embodiment of the present invention is a method of a base station that supports a communication service based on a first frequency band corresponding to a licensed band and a second frequency band corresponding to an unlicensed band in a wireless communication system. If there is data to be transmitted on a channel related to the first LBT (listen-before-talk) protocol using the second frequency band, a random number selected within a predetermined range is used. Between the step assigned as the initial value of the counter, the step of sensing whether or not the channel using the second frequency band is idle, and the sensed slot section, the said When the channel is idle and the counter is greater than 0, the step of decrementing the counter by 1 and when the counter reaches 0 and the sensed slot section is idle, on the channel. While the counter, including the step of transmitting data and being decremented by 1 from the selected random number, is greater than 0, the sensing step and the decrementing for each slot section following the slot section. The steps are repeated and the base station does not decrement the counter during at least one slot section for signal transmission associated with a second LBT (listen-before-talk) protocol, and the LBT (listen-before-talk). -talk) Protocols are characterized by different according to physical signal type / physical channel type .
The apparatus according to the embodiment of the present invention is a base station that supports a communication service based on a first frequency band corresponding to a licensed band and a second frequency band corresponding to an unlicensed band in a wireless communication system, and is a transmission. If there is data to be transmitted on a channel related to the first LBT (listen-before-talk) protocol using the second frequency band, a random selected within a predetermined range. A number is assigned as the initial value of the counter to sense whether or not the channel utilizing the second frequency band is idle during the slot section, and the channel is used during the sensed slot section. When the counter is idle and the counter is greater than 0, the counter is decremented by 1, and when the counter reaches 0 and the sensed slot section is idle, data is transmitted on the channel. A control unit that controls the transmission unit so as to perform the sensing, for each slot section following the slot section, while the counter, which is decremented by 1 from the selected random number, is greater than 0. And the decrement is repeated, the base station does not decrement the counter during at least one slot section for signal transmission associated with a second LBT (listen-before-talk) protocol, and the LBT (listen). -before-talk) Protocols are characterized by different according to physical signal type / physical channel type .

Claims (4)

無線通信システムにおける免許帯域に対応する第１の周波数帯域と非免許帯域に対応する第２の周波数帯域とに基づく通信サービスをサポートする基地局の方法であって、
前記第２の周波数帯域を利用し、第１のＬＢＴ（listen-before-talk）プロトコルに関連するチャンネル上で送信するデータが存在する場合、予め決定された範囲内で選択されたランダム数をカウンタの初期値として割り当てるステップと、
スロット区間の間に、前記第２の周波数帯域を利用する前記チャンネルがアイドル状態であるか否かをセンシングするステップと、
前記センシングされたスロット区間の間、前記チャンネルがアイドル状態であり、前記カウンタが０より大きい場合、前記カウンタを１ずつ減少させるステップと、
前記カウンタが０に到達し、前記センシングされたスロット区間がアイドル状態であると、前記チャンネル上でデータを送信するステップと、を含み、
前記選択されたランダム数から１ずつ減少される前記カウンタが０より大きい間には、前記スロット区間の後に続くスロット区間ごとに前記センシングするステップ及び前記減少させるステップが反復され、
前記基地局は、第２のＬＢＴ（listen-before-talk）プロトコルに関連する信号送信のための少なくとも一つのスロット区間の間に前記カウンタを減少させず、
ＬＢＴ（listen-before-talk）プロトコルは、物理信号タイプ／物理チャンネルタイプに従って異なることを特徴とする基地局方法。 A method of a base station that supports a communication service based on a first frequency band corresponding to a licensed band and a second frequency band corresponding to an unlicensed band in a wireless communication system.
When there is data to be transmitted on the channel related to the first LBT (listen-before-talk) protocol using the second frequency band, a random number selected within a predetermined range is countered. And the step to assign as the initial value of
During the slot section, a step of sensing whether or not the channel using the second frequency band is idle, and
When the channel is idle and the counter is greater than 0 during the sensed slot section, the step of decrementing the counter by 1 and the step.
When the counter reaches 0 and the sensed slot section is idle, it comprises a step of transmitting data on the channel.
While the counter, which is decremented by 1 from the selected random number, is greater than 0, the sensing step and the decrementing step are repeated for each slot section following the slot section.
The base station does not decrement the counter during at least one slot section for signal transmission associated with a second LBT (listen-before-talk) protocol.
The LBT (listen-before-talk) protocol is a base station method characterized by being different according to a physical signal type / physical channel type . 前記第２の周波数帯域を利用する前記チャンネルは、前記チャンネルに対して検出されたパワーが閾値より低い場合、アイドル状態としてセンシングされることを特徴とする請求項１に記載の基地局方法。 The base station method according to claim 1, wherein the channel utilizing the second frequency band is sensed as an idle state when the power detected for the channel is lower than the threshold value. 無線通信システムにおける免許帯域に対応する第１の周波数帯域と非免許帯域に対応する第２の周波数帯域とに基づく通信サービスをサポートする基地局であって、
送信部と、
前記第２の周波数帯域を利用し、第１のＬＢＴ（listen-before-talk）プロトコルに関連するチャンネル上で送信するデータが存在する場合、予め決定された範囲内で選択されたランダム数をカウンタの初期値として割り当てて、スロット区間の間に前記第２の周波数帯域を利用する前記チャンネルがアイドル状態であるか否かをセンシングし、前記センシングされたスロット区間の間、前記チャンネルがアイドル状態であり、前記カウンタが０より大きい場合、前記カウンタを１ずつ減少させて、前記カウンタが０に到達し、前記センシングされたスロット区間がアイドル状態であると、前記チャンネル上でデータを送信するように前記送信部を制御する制御部と、を含み、
前記選択されたランダム数から１ずつ減少される前記カウンタが０より大きい間には、前記スロット区間の後に続くスロット区間ごとに前記センシング及び前記減少が反復され、
前記基地局は、第２のＬＢＴ（listen-before-talk）プロトコルに関連する信号送信のための少なくとも一つのスロット区間の間に前記カウンタを減少させず、
ＬＢＴ（listen-before-talk）プロトコルは、物理信号タイプ／物理チャンネルタイプに従って異なることを特徴とする基地局。 A base station that supports communication services based on a first frequency band corresponding to a licensed band and a second frequency band corresponding to an unlicensed band in a wireless communication system.
With the transmitter
When there is data to be transmitted on the channel related to the first LBT (listen-before-talk) protocol using the second frequency band, a random number selected within a predetermined range is countered. Is assigned as the initial value of, and whether or not the channel using the second frequency band is idle during the slot section is sensed, and the channel is idle during the sensed slot section. Yes, if the counter is greater than 0, the counter is decremented by 1 so that when the counter reaches 0 and the sensed slot section is idle, data is transmitted on the channel. Including a control unit that controls the transmission unit,
While the counter, which is decremented by 1 from the selected random number, is greater than 0, the sensing and decrement are repeated for each slot section that follows the slot section.
The base station does not decrement the counter during at least one slot section for signal transmission associated with a second LBT (listen-before-talk) protocol.
The LBT (listen-before-talk) protocol is a base station characterized by being different according to a physical signal type / physical channel type . 前記第２の周波数帯域を利用する前記チャンネルは、前記チャンネルに対して検出されたパワーが閾値より低い場合、アイドル状態としてセンシングされることを特徴とする請求項３に記載の基地局。 The base station according to claim 3, wherein the channel utilizing the second frequency band is sensed as an idle state when the power detected for the channel is lower than the threshold value.
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US201462074545P 2014-11-03 2014-11-03
US62/074,545 2014-11-03
US201462086018P 2014-12-01 2014-12-01
US62/086,018 2014-12-01
US201462092120P 2014-12-15 2014-12-15
US62/092,120 2014-12-15
US201562131687P 2015-03-11 2015-03-11
US62/131,687 2015-03-11
US201562134386P 2015-03-17 2015-03-17
US62/134,386 2015-03-17
US14/930,453 2015-11-02
US14/930,453 US10637619B2 (en) 2014-11-03 2015-11-02 Method and apparatus for channel access for LTE on unlicensed spectrum
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