JP2020099067A - 車両端末、通信方法、及びv2xアプリケーションサーバ - Google Patents
車両端末、通信方法、及びv2xアプリケーションサーバ Download PDFInfo
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- G08G—TRAFFIC CONTROL SYSTEMS
- G08G1/00—Traffic control systems for road vehicles
- G08G1/09—Arrangements for giving variable traffic instructions
- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096708—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control
- G08G1/096716—Systems involving transmission of highway information, e.g. weather, speed limits where the received information might be used to generate an automatic action on the vehicle control where the received information does not generate an automatic action on the vehicle control
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- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
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- G08G1/0962—Arrangements for giving variable traffic instructions having an indicator mounted inside the vehicle, e.g. giving voice messages
- G08G1/0967—Systems involving transmission of highway information, e.g. weather, speed limits
- G08G1/096766—Systems involving transmission of highway information, e.g. weather, speed limits where the system is characterised by the origin of the information transmission
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Abstract
Description
以下、図面を参照して本発明の実施の形態について説明する。図1を用いて本発明の実施の形態1にかかる車両通信システムの構成例について説明する。車両通信システムは、車両端末10、車両端末11、車両用基地局20、車両用基地局21及びサーバ装置30を有している。車両端末10、車両端末11、車両用基地局20、車両用基地局21及びサーバ装置30は、プロセッサがメモリに格納されているプログラムを実行することによって動作するコンピュータ装置であってもよい。
続いて、図2を用いて本発明の実施の形態2にかかる車両通信システムの構成例について説明する。図2の車両通信システムは、車両端末40、デバイス端末50、V2X(Vehicle to X:Xは、車両、歩行者、サーバ装置等) eNB(evolved NodeB)61、eNB62、MME(Mobility Management Entity)63、HSS(Home Subscriber Server)64、SCEF(Service Capability Exposure Function)65、GW(Gateway)67、PDN(Packet Data Network)68及びV2X APL(Application)サーバ装置69を有している。
11 車両端末
20 車両用基地局
21 車両用基地局
30 サーバ装置
40 車両端末
41 無線通信部
42 無線処理部
43 V2Xアプリケーション
44 サービス情報記憶部
50 デバイス端末
61 V2X eNB
62 eNB
63 MME
64 HSS
65 SCEF
67 GW
68 PDN
69 V2X APLサーバ装置
101 S1AP通信部
102 S1AP呼処理部
103 LTE処理部
104 無線処理部
105 GTP−U(S1)通信部
106 GTP−U(S1処理部)
107 Context記憶部
108 GTP−U(X2)処理部
109 GTP−U(X2)通信部
110 X2AP処理部
111 X2AP通信部
112 ユニキャストパケット生成部
113 V2X APL処理部
114 V2X APL通信部
121 Diameter通信部
122 S1AP通信部
123 GTP−C通信部
124 Context記憶部
125 MME呼処理部
131 Diameter(S6a)通信部
132 Diameter(Sh)通信部
133 加入者情報処理部
134 加入者情報記憶部
141 V2X APL処理部
142 サービス情報記憶部
143 メッセージ通信部
Claims (9)
- V2Xアプリケーションサーバと、基地局とを含む車両通信システムで用いられる車両端末であって、
前記車両端末が実行するサービスを示す情報を記憶する記憶手段と、
前記V2XアプリケーションサーバのFQDN(Fully Qualified Domain Name)を生成し、DNS(Domain Name System)解決に基づき前記V2XアプリケーションサーバのIPアドレスを取得する取得手段と、
前記情報を前記基地局を介して、前記IPアドレスに従った前記V2Xアプリケーションサーバに送信する送信手段と、
前記V2Xアプリケーションサーバから、V2Xサービスに関するメッセージを、前記基地局を介して、ユニキャストにて受信する受信手段と、を有する、
車両端末。 - 前記V2Xアプリケーションサーバと前記基地局間に、伝送遅延を削減するため、前記基地局の近傍に配置されたLGW(Local Gateway)を設ける、
請求項1記載の車両端末。 - 前記V2Xアプリケーションサーバは、前記車両端末の地理情報または位置情報に基づき、前記メッセージをユニキャストで送信する、
請求項1記載の車両端末。 - 前記車両端末は、複数の前記V2Xアプリケーションサーバと通信する、請求項1記載の車両端末。
- V2Xアプリケーションサーバと、基地局とを含む車両通信システムで用いられる車両端末の通信方法であって、
前記車両端末が実行するサービスを示す情報を記憶し、
前記V2XアプリケーションサーバのFQDN(Fully Qualified Domain Name)を生成し、DNS(Domain Name System)解決に基づき前記V2XアプリケーションサーバのIPアドレスを取得し、
前記情報を前記基地局を介して、前記IPアドレスに従った前記V2Xアプリケーションサーバに送信し、
前記V2Xアプリケーションサーバから、V2Xサービスに関するメッセージを、前記基地局を介して、ユニキャストにて受信する、
通信方法。 - 車両端末と、基地局とを含む車両通信システムで用いられるV2Xアプリケーションサーバであって、
前記車両端末から、前記車両端末が実行するサービスを示す情報を、前記基地局を介して、受信する受信手段と、
前記車両端末の地理情報または位置情報を入手する手段と、
前記車両端末の地理情報または位置情報に基づき、V2Xに関するメッセージを、前記基地局を介して、前記車両端末にユニキャストにて送信する送信手段と、を有する、
V2Xアプリケーションサーバ。 - 前記V2Xアプリケーションサーバと前記基地局間に、伝送遅延を削減するため、前記基地局の近傍に配置されたLGW(Local Gateway)を設ける、
請求項6記載のV2Xアプリケーションサーバ。 - 前記車両通信システムは、複数の前記V2Xアプリケーションサーバを設ける、
請求項6記載のV2Xアプリケーションサーバ。 - 車両端末と、基地局とを含む車両通信システムで用いられるV2Xアプリケーションサーバの通信方法であって、
前記車両端末から、前記車両端末が実行するサービスを示す情報を、前記基地局を介して、受信し、
前記車両端末の地理情報または位置情報を入手し、
前記車両端末の地理情報または位置情報に基づき、V2Xに関するメッセージを、前記基地局を介して、前記車両端末にユニキャストにて送信する、
通信方法。
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2019
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2021
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US11330490B2 (en) | 2022-05-10 |
EP3273708A4 (en) | 2018-12-12 |
EP3273708A1 (en) | 2018-01-24 |
JP6881297B2 (ja) | 2021-06-02 |
JP7010315B2 (ja) | 2022-01-26 |
US20180049088A1 (en) | 2018-02-15 |
US20200329412A1 (en) | 2020-10-15 |
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