JP7293435B2 - Pcp/ap通信装置および通信方法 - Google Patents
Pcp/ap通信装置および通信方法 Download PDFInfo
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- H04B7/046—Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting taking physical layer constraints into account
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Description
実施の形態1では、下りリンクセクタスイープにおいて、通信装置(STA)100bが、DMG Beaconの受信電力と、DMG Beaconに含まれる上りリンクセクタスイープ時に使用される通信装置(AP)100aの擬似無指向性(quasi-omni)アンテナの受信ゲインとを用いて、上りリンクスイープにおけるSSWフレームが、通信装置(AP)100aによって受信可能であるか否かを判断する方法について説明する。
PathLoss_Beacon = EIRP_Beacon + RxGain_Beacon - RSSI_Beacon (式1)
RSSI_ABFT = EIRP_ABFT - PathLoss_Beacon + RxGain_ABFT (式2)
RSSI_STA_Data = EIRP_AP_Data - PathLoss_Beacon + RxGain_STA_Data (式3)
RSSI_AP_Data = EIRP_STA_Data - PathLoss_Beacon + RxGain_AP_Data (式4)
実施の形態1では、DMG Beaconフレームに、DMG BeaconフレームにTX EIRPフィールド及びA-BFT RX Antenna Gainフィールド、Probe RequestフレームにBeamed TX EIRPフィールド及びBeamed RX Gainフィールドを含めて送信したが、実施の形態2は、DMG BeaconフレームにTX EIRPフィールド及びA-BFT RX Antenna Gainフィールドを含めて送信し、更に、Probe RequestフレームにBeamed TX EIRPフィールド及びBeamed RX Gainフィールドを含めて送信する場合について説明する。
実施の形態2は、DMG Beaconフレームにおいて、TX EIRPの値とA-BFT RX Antenna Gainの値をそれぞれ、送信したが、実施の形態2の変形例では、TX EIRPの値とA-BFT RX Antenna Gainの値の差分をDMG Beaconフレームにて送信する。
DIFF_Gain_Beacon = EIRP_Beacon - RxGain_ABFT (式5)
RSSI_ABFT
= EIRP_ABFT - PathLoss_Beacon + RxGain_ABFT
= EIRP_ABFT - (EIRP_Beacon + RxGain_Beacon - RSSI_Beacon) + RxGain_ABFT
= RSSI_Beacon + EIRP_ABFT -RxGain_Beacon - (EIRP_Beacon - RxGain_ABFT)
= RSSI_Beacon + EIRP_ABFT -RxGain_Beacon - DIFF_Gain_Beacon (式6)
EIRP_AP_Relative = EIRP_AP_Data - EIRP_Beacon (式7)
RxGain_AP_Relative = RxGain_AP_Data - RxGain_ABFT (式8)
RSSI_STA_Data
= EIRP_AP_Data - PathLoss_Beacon + RxGain_STA_Data
= EIRP_AP_Data - (EIRP_Beacon + RxGain_Beacon -RSSI_Beacon)+RxGain_STA_Data
= RSSI_Beacon+(EIRP_AP_Data -EIRP_Beacon)+(RxGain_STA_Data - RxGain_Beacon)
= RSSI_Beacon + EIRP_AP_Relative + (RxGain_STA_Data - RxGain_Beacon)
・・・(式9)
RSSI_AP_Data
= EIRP_STA_Data - PathLoss_Beacon + RxGain_AP_Data
= EIRP_STA_Data - (EIRP_Beacon + RxGain_Beacon -RSSI_Beacon)+RxGain_AP_Data
= RSSI_Beacon - (EIRP_Beacon - RxGain_AP_Data)+(EIRP_STA_Data - RSSI_Beacon)
= RSSI_Beacon + (RxGain_STA_Data - RxGain_Beacon)
- (DIFF_Gain_Beacon + RxGain_ABFT - RxGain_AP_Relative - RxGain_ABFT)
= RSSI_Beacon + (RxGain_STA_Data - RxGain_Beacon)
(DIFF_Gain_Beacon - RxGain_AP_Relative) (式10)
実施の形態1及び実施の形態2では、通信装置(STA)100bは、1つの通信装置(AP)100aから受信したDMG Beaconフレームに基づいて、SSWフレームの送信の有無を判断していたが、実施の形態3は、複数の通信装置(AP)100aから受信したDMG Beaconフレームに基づいて、SSWフレームの送信の有無を判断する。
実施の形態1から3では、通信装置(STA)100bはDMG Beaconに基づいて、SSWフレームを送信するか否かを判断し、送信しないと判断した場合は、通信装置(AP)100aとの接続を中断していた。実施の形態4では、DMG Beaconに基づいて、SSWフレームを送信しないと判断した場合であっても、他の無線方式を用いて、無線リンクの確立に必要な情報を送信する方法について説明する。
なお、通信装置(AP)100aは、規格に示す受信感度点(図12A)に比べ高い受信性能を持つ場合、規格の値と受信性能との差分をRxGain_ABFT及びRxGain_AP_Dataに含めて送信しても良い。
ADD_GAIN_AP = SENSE_REF - SENSE_AP (式11)
RSSI_ABFT > SENSE_AP (式12)
EIRP_ABFT - PathLoss_Beacon + RxGain_ABFT > SENSE_REF - ADD_GAIN_AP
(式13A)
EIRP_ABFT - (EIRP_Beacon + RxGain_Beacon - RSSI_Beacon) + RxGain_ABFT > SENSE_REF - ADD_GAIN_AP (式13B)
(EIRP_ABFT - RxGain_Beacon + RSSI_Beacon) - (EIRP_Beacon - RxGain_ABFT - ADD_GAIN_AP) > SENSE_REF (式13C)
実施の形態5は、通信装置(AP)100aと通信装置(STA)100bが通信を行う実施の形態1から4と異なる方法について説明する。
DMG Beaconの送信における送信セクタの切り替えと同じ順序で、Asymmetric BT allocationにおける受信セクタの切り替えを行う。
実施の形態6は、通信装置(AP)100aと通信装置(STA)100bが通信を行う別の方法について説明する。
(EIRP_ABFT_Qomni - RxGain_Beacon + RSSI_Beacon) - (EIRP_Beacon - RxGain_ABFT - ADD_GAIN_AP) > SENSE_REF (式14)
101 MAC制御部
102 PHY送信回路
103 D/Aコンバータ
104 送信RF回路
105 送信q-omniアンテナ
106 送信アレイアンテナ
112 PHY受信回路
113 A/Dコンバータ
114 受信RF回路
115 受信q-omniアンテナ
116 受信アレイアンテナ
Claims (4)
- セクタスイープ(SSW)フィールドを含むDirectional Multi-Gigabit Beacon(DMG Beacon)フレームを生成し、前記SSWフィールドは、自装置のTX EIRP(Transmission Equivalent Isotropic Radiated Power)の値と前記自装置の受信アンテナゲインの値とを用いて得られる差分の値を示すDifferential Gainサブフィールドを含み、前記Differential Gainサブフィールドの値は、前記DMG Beaconフレームを受信した通信相手装置において、ビームフォーミングトレーニング(BFT)のためのフレームを送信するか否かを判断するのに用いられる、信号生成部と、
前記生成されたDMG Beaconフレームを送信する送信部と、
を備えるPCP/AP(personal basic service point / access point)通信装置。 - 前記差分の値は、前記TX EIRPの値から、前記自装置の前記受信アンテナゲインの値を除算することによって得られる、
請求項1に記載のPCP/AP通信装置。 - PCP/AP通信装置における通信方法であって、
セクタスイープ(SSW)フィールドを含むDirectional Multi-Gigabit Beacon(DMG Beacon)フレームを生成し、前記SSWフィールドは、自装置のTX EIRP(Transmission Equivalent Isotropic Radiated Power)の値と前記自装置の受信アンテナゲインの値とを用いて得られる差分の値を示すDifferential Gainサブフィールドを含み、前記Differential Gainサブフィールドの値は、前記DMG Beaconフレームを受信した通信相手装置において、ビームフォーミングトレーニング(BFT)のためのフレームを送信するか否かを判断するのに用いられるものであり、
前記生成されたDMG Beaconフレームを送信する、
通信方法。 - 前記差分の値は、前記TX EIRPの値から、前記自装置の前記受信アンテナゲインの値を除算することによって得られる、
請求項3に記載の通信方法。
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Application Number | Priority Date | Filing Date | Title |
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JP2016215408 | 2016-11-02 | ||
JP2016215408 | 2016-11-02 | ||
JP2017031029 | 2017-02-22 | ||
JP2017031029 | 2017-02-22 | ||
JP2017088864A JP7039181B2 (ja) | 2016-11-02 | 2017-04-27 | non-PCP/AP通信装置および通信方法 |
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US (2) | US11990975B2 (ja) |
JP (1) | JP7293435B2 (ja) |
KR (4) | KR20230169464A (ja) |
CN (3) | CN109804571B (ja) |
AU (2) | AU2017354452C1 (ja) |
ES (2) | ES2898074T3 (ja) |
MX (1) | MX2023007469A (ja) |
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