Ϊ273785 · 九、發明說明： 【發明所屬之技術領域】 於一』；線ί汛裝置基地台切換與資料存取方法，特別 、㈣;;置中採用支援同時擁有複數_域資訊的 1汛杈、、且’猎以達到無接缝通訊之目的。 【先前技術】 當一終端設備（terminal)從一網段（netw〇rk segment) 移動至另一網段的涵蓋範圍時，因為終端設備必須重新設 定下一個網段的網路位址（IP)與其相關網域資訊以建立 連線，這時封包傳輸會出現短暫的中斷，當所需傳輸的資 料為一般數據封包（data)，則此中斷並無太大影響，但所 需傳輸的資料為即時語音封包，則有即時傳輸的需求，此 時的中斷則會影響正常的通訊。 故利用無線網路（如WLAN，WiMAX等）的行動通訊 技術除了穩定傳輸訊號外，需於兩個網段間漫遊（roaming) 切換時，能使訊號完整接收，即需達到無接缝（seamless) 的通訊效果。 如美國公開案US2004/0121772號所揭露以無線區域 網路（WLAN )傳輸行動語音的方法，其中即藉兩個無線 存取裝置（ Access Point)間傳遞一終端裝置訊息達到訊號 切換（handover)之目的。該無線網路終端設備進行語音 傳輸時則不斷地偵測鄰近無線訊號，當漫遊（roaming)於 兩個無線存取裝置間進行訊號切換過程時，則利用於連線 第一無線存取裝置之該終端設備的資訊與其網路卡實體位Ϊ 273785 · Nine, invention description: [Technical field of invention] Yu Yi"; line 汛 device base station switching and data access method, special, (four);; centering support 1 复 domain information at the same time , and 'hunting to achieve the purpose of seamless communication. [Prior Art] When a terminal moves from a network segment (netw〇rk segment) to another network segment, because the terminal device must reset the network address (IP) of the next network segment. When the connection with the relevant domain information is established, there will be a short interruption in the transmission of the packet. When the data to be transmitted is a general data packet, the interruption does not have much impact, but the data to be transmitted is instantaneous. Voice packets have the need for instant transmission, and interruptions at this time will affect normal communication. Therefore, in addition to the stable transmission of signals, the mobile communication technology using wireless networks (such as WLAN, WiMAX, etc.) needs to be completely received when roaming between two network segments, that is, seamless (seamless) ) Communication effect. A method for transmitting mobile voice over a wireless local area network (WLAN) is disclosed in US Patent Publication No. 2004/0121772, in which a terminal device message is transmitted between two access points to achieve signal handover. purpose. When the wireless network terminal device performs voice transmission, the neighboring wireless signal is continuously detected, and when roaming is performed between the two wireless access devices for signal switching, the wireless access device is used to connect to the first wireless access device. The information of the terminal device and its network card entity
1273785 · 址（MAC address)來連線第二無線存取裝置，達成切換至 下一個無線存取裝置之目的。 再如美國公開案US2004/0203785號所述的VoIP通訊 傳輸的方法，如第一圖所示，其中一無線終端裝置1〇 (如 行動電話等）進行以無線網路為基礎的語音通話（v〇ice over IP)，並漫遊於廣泛分佈各地的基地台1〇1，1〇2，i〇3 間，其中之一實施例為各基地台1〇1，1〇2, 1〇3分別連接不 同的閘道器（Gateway) 104, 105, 106，藉此閘道器進行語 音封包的傳遞與轉換，如封包的壓縮與解壓縮等，各閘道 器1〇4, 1〇5, 106各連接有控制器1〇7, 108, 1〇9，係藉以控 制傳輸頻寬與訊號處理。當該無線終端裝置1〇進行兩基地 台的切換時，其對應之控制器則相互傳遞所需之訊息，使 能順利連接下一個無線基地台。 上述技術中係提供無線終端裝置於語音通訊時進行基 地台切換訊號續傳的解決方式，但於訊號進行切換時難免 有訊號中斷的問題，且可能因為克服續傳問題而需要改變 現有無線通訊的架構，然本發明即於終端裝置中設置一模 擬之DHCP飼服器模組，並能同時擁有複數組網域資訊（= 括網路位址與其相關網域資訊）的通訊模組，利用其中= 路位址轉換（NAT)的機制，使於無線通訊裴置在美地^ 切換時’達到無接缝（seamless)通訊的目的。 【發明内容】 一種無線通訊裴置基地台切換與資料存取 漫遊於紐個無絲料_無祕絲^設置 6 ⑧ 1273785 之動也、主枝組悲協定（Dynamic Host Configuration Protocol，DHCP)飼服器模組，並—可同時擁有複數組網 ，位址與其相_域f訊的虛擬的D{jGp客戶職組，藉公 眾網域轉換至私有網域的NAT機制，使該無線通訊裝置在 基地台切換時，能達到無接縫通訊之目的。 該無線通訊裝置基地台切換方法包括有：搜尋可用之 無”號’之❹卩建立鱗通絲置與-第-無線基 地口之第-連線’並請求第_網路位址與其相關網域資 Λ ’於傳达-省電模式訊息至第一無線基地台後，即進行 搜尋無線網路訊號之步驟，再傳送—喚醒模式訊息至第— ，線基地台後，進行#料傳輸。之後，於偵測—漫遊事件 ί壯ΪΪ省，式訊息至第一無線基地台，並建立無線通 線基地台之第二連線，亦向第二無線基 1::: f 一’:再路位址與其相關網域資訊’然後’傳送省 至第二無線基地台，秘傳送喚醒模式訊息至 無，基地台與進行資料傳輸後，· :弟二連線傳輸資料，即傳送喚醒_ : 地台，以進行資料傳輪。 弟…線基 而^無線通崎额基地台㈣存取方法係於一益 Γατ :衣f曼遊於複數個無線網路中，藉通訊裝置内部： 二方法達成無接縫資料傳輸，基地 ==;=，與其_域資訊，再轉換i /、 位址，藉此網路位址轉換機制傳 1273785 · :=資料\同時搜尋另—無線網路訊號，以與第二無 奶Γ、σ建立—第—連線’以獲得—第二網路位址與其相 關網域資訊，於判斷連線狀態時，備測到一漫遊事件，再 2=虛擬網路位址與第二網路位址，藉此網路位址轉 換枝制傳送或接收資料。 【實施方式】 ‘本發明實施例以無線網路為基礎的語音通話（νοΙΡ) 無線通訊ft置油，無線通訊裝置巾之·模纟种内建一 動態主機組態協定客戶端（DHCPCUent)模組，是為了對 無線網路基地台内的DHCP伺服器（DHCP server)請求該 所屬網域的網路位址與其相關網域資訊，如閘道主機 (Gateway )、名稱伺服器（DNS )、廣播位址（Br〇adcast)、 網域遮罩（Netmask)等網域資訊。 本發明係於基地台切換時之資料傳輸方法包括可同時 建立與複數個無線基地台的複數個連線，藉其中省電模式 訊息與喚醒模式訊息控制與基地台間的資料傳輪，並 無線模組内虛擬網址與公眾網址的轉址機制進行資料傳 輸。 、 如第二A圖所述習知之網路通訊協定架構，於網路傳 輸的應用中，伺服端與客戶端需相對應有圖示之應用層 (Application Layer) 21，是指連線軟體部份；網路^ (Network Layer) 22，其中制定有兩方傳輪的通訊協定= 如無線網路常用的tcp/ip通訊協定等；網路鏈層 (Data-LinkLayer) 23，係藉以定義二個不同網路系^先曰，1273785 The MAC address is used to connect the second wireless access device to achieve the purpose of switching to the next wireless access device. The method for transmitting VoIP communication as described in US Publication No. 2004/0203785, as shown in the first figure, wherein a wireless terminal device (such as a mobile phone, etc.) performs a wireless network-based voice call (v 〇ice over IP), and roaming between the base stations 1〇1,1〇2,i〇3, which are widely distributed, one of the embodiments is connected to each base station 1〇1,1〇2, 1〇3 Different gateways (Gateway) 104, 105, 106, whereby the gateway performs voice packet transmission and conversion, such as compression and decompression of packets, and each gateway 1〇4, 1〇5, 106 The controllers 1〇7, 108, 1〇9 are connected to control the transmission bandwidth and signal processing. When the wireless terminal device 1 performs the switching between the two base stations, the corresponding controllers transmit the required messages to each other, enabling the smooth connection to the next wireless base station. The above technology provides a solution for the wireless terminal device to perform the base station switching signal retransmission in the voice communication, but the signal interruption is inevitable when the signal is switched, and the existing wireless communication may need to be changed because of overcoming the retransmission problem. The present invention is to provide a simulated DHCP feeding device module in the terminal device, and can simultaneously have a communication module of complex array domain information (= network address and related domain information), and utilize the same. = Road Address Translation (NAT) mechanism that enables wireless communication to achieve seamless communication when switching between the US and the US. SUMMARY OF THE INVENTION A wireless communication device base station switching and data access roaming in a new piece of silk material _ no secret wire ^ setting 6 8 1273785 movement, the main branch group (Dynamic Host Configuration Protocol, DHCP) feeding The server module, and can simultaneously have a complex array network, the virtual D{jGp client group with the address and the domain_domain, and the public network domain is converted to the NAT mechanism of the private domain, so that the wireless communication device When switching between base stations, the purpose of seamless communication can be achieved. The method for switching the base station of the wireless communication device includes: searching for the available "No" number, establishing the first line connection of the -1 - wireless base port and requesting the first network address and its related network After the message is sent to the first wireless base station, the step of searching for the wireless network signal is performed, and then the awake mode message is sent to the first, and after the line base station, the material transmission is performed. After that, in the detection-roaming event ί, the message is sent to the first wireless base station, and the second connection of the wireless channel base station is established, and the second wireless base 1::: f a ': The road address and its related domain information 'then' are transmitted to the second wireless base station, and the secret transmission mode message is sent to none. After the base station and the data transmission, the second transmission data is transmitted, ie, the wake-up is transmitted _: The platform is used for data transmission. Brother... Line base and ^ Wireless Tosaki's base station (four) access method is based on Yiyi τατ: clothing f man swims in multiple wireless networks, by communication device inside: two methods Achieve seamless data transmission, base ==;=, and its_ Domain information, then convert i /, address, thereby using the network address translation mechanism to pass 1273785 · := data\simultaneous search for another wireless network signal to establish a second connection with the second milkless σ, σ 'Getting the second network address and its related domain information, when determining the connection status, preparing a roaming event, then 2=virtual network address and second network address, thereby using the network The address conversion switch transmits or receives data. [Embodiment] In the embodiment of the present invention, a wireless network-based voice call (νοΙΡ) wireless communication ft oil, a wireless communication device, a model, a built-in dynamic The host configuration protocol client (DHCPCUent) module is used to request the DHCP server of the wireless network base station to request the network address of the domain and its related domain information, such as the gateway host ( Domain information such as Gateway), name server (DNS), broadcast address (Br〇adcast), and network mask (Netmask). The present invention is a data transmission method for switching between base stations including simultaneous establishment and plural Multiple connections of the wireless base station, borrowing The power saving mode message and the wake mode message control and the data transfer between the base stations, and the data transfer between the virtual website and the public website address mechanism in the wireless module. The network communication as described in the second figure A The protocol architecture, in the application of network transmission, the application layer (Application Layer) 21 corresponding to the server and the client end is referred to as the connection software part; the network layer (Network Layer) 22, which is formulated There are two-way communication protocol = tcp/ip communication protocol commonly used in wireless networks, etc.; Data-Link Layer 23 is used to define two different network systems.
1273785 擬的DHCP舰减組請求—網路位址（丨p)與其试 =固此^該無線通訊裝置内私有（ρΗ缝）的網路位址或 :'、、、疋立址，使該無線通訊裝置之網 ^漫遊不_域㈣動網路位址（包括相_域資 2線基地台所發送的公眾（pubHe)網路位 伺服器模組2Q3接收，利用其中網路位$ 路=ir/nddress Translation，NAT)機制將公眾網 路位址轉換為固定的私有網路位址，使其中網路模組不因 網路位址轉換而有延遲、中斷的現象。 如第三A圖所示之無線通訊裝置漫遊示意圖，益 線通訊裝置3〇運作於第—祕基地台Αρι與第：無線祕 σ AP2之間，其中網路模組需制無線訊號品質來判&連 接之基地台。當進行兩無線基地台之切換（hand〇ver)時， 即利用無線模_模擬之黯客戶端模組接收連線基地 。DHCP飼服為模組分配的網路位址與其相關網域資訊，而 本發明無__模擬之DHGP客戶職㈣支援、同時擁 有稷數組（此以兩組為例）於基地台切換時所連接的網路 位址，並彻其巾網路位轉換鋪義無接縫切換的目 的0 第三B圖係為MCP客戶端模組請求與網域資訊時槽 圖。無線模組會於固定時間内對所連接的無線基地台發^ 汛息，如省電模式訊息（power save m〇de) 3〇1，此係為 IEEE 802.11無線通訊協定中針對電力的管理提出的機 制，這機制讓每一個無線通訊裝置或基地台依據其電力消 耗情況或通訊狀況，適當地調整該設備或基地台的電源管 1273785 理狀您（power management state)為省電模式或運作模 式（active mode)，可以藉此節省通訊裝置電力的消耗。 無線通訊裝置對無線基地台定時發送的各省電模式訊 息301間的時間内即為無線模組運作模式時間，如此時可 、 進行接收或傳送資料，本發明則利用各省電模式訊息3〇1 • 間來週期性對無線基地台發送請求訊號（request signal) ， 302，即對DHCP伺服器請求該網段之網路位址（ip)與其 相關網域資訊，此時並會搜尋其他無線網路訊號。 Φ 其連線流程請參閱第四圖本發明實施例之無線通訊裝 呈與無線基地台連線流程圖。 開始時，開啟一無線通訊裝置，如v〇Ip行動電話等以 . 無線網路為連線的無線通話裝置（步驟S401)，該無線通 Λ衣置中之然線模組即進行搜尋可用之無線網路訊號（步 驟S403)，其實施例即由該無線模組掃描偵測無線網路訊 號，並進行認證（authenticati〇n)、登錄網路相關訊息、 連線品質測試等程序，當獲得適當無線基地台回應後广即 • 第一無線基地台建立第一連線（步驟S405),並請求 —第一網路位址（IP1)，其一較佳實施例為該建立連線之 : 步驟包括安全性與身分認證之程序，並進行三向交握 (three-way handshake)等連線過程，如傳送 syn—syn—ack ; 訊號等。 完成連線後，由無線通訊裝置傳送一第一省電模式 jpower save)訊息至該第一無線基地台，當傳送第一省 ^式訊息至無線基地台時，基地台則暫停（suspending) 封此無線通訊裝置進行服務（步驟S407)，並於此時進行 11 1273785 搜尋鄰近的無線訊號（步驟S4〇9)。 =無線通訊裝置再傳送第_喚醒模式(磁 息^該弟-無線基地台（步驟S411)，已進行傳送與接^ 數據貝枓（步，驟S413)，於本發明之較佳實施例中， 訊 包的傳送與接收’亦可為-般的數據訊息 傳I接收。在進行語音或其他數據#料收發時，若此叙 線^裝置移動至-第二無線基地台之訊號涵蓋範圍，^ 會偵測到可能的漫遊（_ing)事件（步驟s4i5 )，此時， 無線通訊裝置的無線模組即傳送第―省電模式訊息至 線的士第-無線基地台（步驟S4n)，請求其服務暫停，於 此時間内則與第二無線基地台建立第二連、線（步 S419)，請求第二網路位址（IP2)，此時本發明所述之 通訊裝置雜有兩㈣複數組網路位址與其相關網域資 接著，則由無線通訊裝置傳送第二省電模式訊息至第 二無線基地台（步驟期），並傳送第—喚醒模式訊息至 第二無線基地台（步驟S423)，此例中同時保持第一連線 與第二連線，並仍由第-無線基地台傳送與接收數據資 料’如語音封包等（步驟S425>因為該無線通訊裝置處 於漫遊複數無線基地台間的狀態，此時可利 進行判斷收發資料之連線（步驟S427)，其一實施例可^ 用無線訊號強度指示（Radio Signal Strength Indicator, RSSI)偵測無線網路訊號強度的變化，藉以判斷是否停止 第一連線的傳輸而使用第二連線的傳輸，反之亦然。若需 要停止或中斷第一連線的傳輸，則需傳送第二唤醒模式訊 12 ⑧ 1273785 息至第二無線基地台（步驟S429)，以進行傳送與接收語 音等數據資料（步驟S431)。 重複上述搜尋網路、連線與判斷連線等步驟，配合第 五圖所述之資料傳輸方法，可使本發明無線通訊裝置漫遊 於各基地台間，並進行無接缝之切換與資料存取。 第五圖係為本發明實施例之資料傳輸架構實施例示意 圖，此示意圖敘述支援同時擁有兩組網路位址之無線通訊 裝置，其利用其中網路模組50之網路位址轉換機制，達到 於各無線基地之各網段間漫遊而能進行順暢的無接缝傳輸 之目的。 圖式中，其無線模組50中模擬一支援同時擁有兩組或 複數組網路位址（包括相關網域資訊）之虛擬洲⑶客戶端 杈組53 ’藉其接收第一無線基地台Αρι所分配之第一網路 位址IP1，建立第一連線；亦於搜尋到的第二無線基地台 AP2接收所分配的第二網路位址ίρ2，建立第二連線。藉網 路品質與訊號強弱等因素來判斷由第一連線或是第二連線 進行資料傳輸，故於一時刻中僅以其中之一連線進行傳輸。 圖中所示之第一網路位址ΙΡ1與第二網路位址ΙΡ2為 ，線基地台ΑΡ1，ΑΡ2所分配的公眾（public)網路位址， 每一基地台所涵蓋之區域有不同網段的網路位址。 而無線模組50内原有的DHCP客戶端模組55則接收盆 中模擬的DHCP伺服器模組58所分配的虛擬網路位址卟3 與其相，網域資訊，此虛擬網路位址lp3為該無線模組5〇 内自行定義的私有（Private)網路位址，使此無線通訊裝 置中之無線餘5G不需因產生漫遊事件而隨時更動網路 13 ⑧ 1273785 =址，，疋藉其中網路位址轉換（NAT)單元54將基地台 二Z =第一網路位址IP1或第二網路位址1P2藉NAT機制 二、：、、、私有的虛擬網路位址Ip3，同理應用於反向轉換之 取後由無線模組5〇内之實體的網路鏈結層56與實體 =層+ 57备NAT機制轉換成公眾網域接钱傳送資料，使 二各模、、且50不須因漫遊而隨時可能更動網路設定產生錯 誤或延遲的問題。1273785 The proposed DHCP ship reduction request - the network address (丨p) and its test = fixed this ^ the wireless communication device private (p quilting) network address or: ',,, 疋 address, so that The wireless communication device network ^ roaming is not _ domain (four) dynamic network address (including the phase _ domain 2 line base station sent by the public (pubHe) network bit server module 2Q3 received, using the network bit $ road = The ir/nddress Translation (NAT) mechanism converts the public network address into a fixed private network address, so that the network module does not have delay or interruption due to network address translation. As shown in Figure 3A, the wireless communication device roaming diagram, the benefit line communication device 3〇 operates between the first secret base station Αρι and the first: wireless secret AP AP2, wherein the network module needs to be determined by the wireless signal quality. & connected base station. When the two wireless base stations are switched (hand〇ver), the wireless module is used to receive the connection base. The DHCP feed service is the network address assigned by the module and its related domain information, and the present invention does not have the __ simulated DHGP customer service (4) support, and has the 稷 array (this is taken as two groups) when switching at the base station. The network address of the connection, and the purpose of seamlessly switching the network address conversion. The third B picture is the MCP client module request and the domain information time slot map. The wireless module will send a message to the connected wireless base station within a fixed time, such as power save mode message (3), which is proposed for the management of power in the IEEE 802.11 wireless communication protocol. Mechanism, which allows each wireless communication device or base station to properly adjust the power supply of the device or base station according to its power consumption or communication status. 1273785 Power management state is the power saving mode or operation mode. (active mode), thereby saving power consumption of the communication device. The time between the power saving mode messages 301 periodically sent by the wireless communication device to the wireless base station is the wireless module operating mode time, so that the data can be received or transmitted, and the present invention utilizes the power saving mode messages 3〇1. Periodically, a request signal is sent to the wireless base station, 302, that is, the DHCP server requests the network address (ip) of the network segment and its related domain information, and searches for other wireless networks. Signal. Φ For the connection process, please refer to the flowchart of the connection between the wireless communication device and the wireless base station according to the fourth embodiment of the present invention. Initially, a wireless communication device, such as a wireless communication device connected to the wireless network, is opened (step S401), and the wireless module in the wireless device is searched for available. The wireless network signal (step S403), in the embodiment, the wireless module scans and detects the wireless network signal, and performs authentication (authenticati〇n), login network related information, connection quality test, and the like, when obtained. After the appropriate wireless base station responds, the first wireless base station establishes a first connection (step S405), and requests a first network address (IP1). A preferred embodiment of the connection is: The steps include security and identity authentication procedures, and three-way handshakes, such as sending syn-syn-acks; signals, and so on. After the connection is completed, the first communication mode is sent to the first wireless base station by the wireless communication device, and when the first state information is transmitted to the wireless base station, the base station suspends the seal. The wireless communication device performs a service (step S407), and at this time, 11 1273785 searches for neighboring wireless signals (step S4〇9). = the wireless communication device retransmits the first awake mode (magnetic information ^ the wireless base station (step S411), and has transmitted and received data (step S413), in a preferred embodiment of the present invention The transmission and reception of the packet can also be received by the general data message. When the voice or other data is transmitted or received, if the device moves to the signal coverage of the second wireless base station, ^ A possible roaming (_ing) event is detected (step s4i5). At this time, the wireless module of the wireless communication device transmits the first power saving mode message to the line taxi-radio base station (step S4n), requesting The service is suspended. During this time, a second connection (line) is established with the second wireless base station (step S419), and the second network address (IP2) is requested. At this time, the communication device of the present invention has two (4) After the complex array network address and its associated domain resources are followed, the wireless communication device transmits the second power saving mode message to the second wireless base station (step period), and transmits the first awake mode message to the second wireless base station ( Step S423), in this example, the first connection is maintained at the same time. The line is connected to the second line, and the data is still transmitted and received by the first-radio base station, such as a voice packet (step S425); since the wireless communication device is in a state of roaming plural wireless base stations, the judgment can be made at this time. Transmitting and transmitting data (step S427), an embodiment of the method can detect a change in the strength of the wireless network signal by using a Radio Signal Strength Indicator (RSI) to determine whether to stop the transmission of the first connection. The second connection is used for transmission, and vice versa. If it is necessary to stop or interrupt the transmission of the first connection, the second wake-up mode is transmitted to the second wireless base station (step S429) for transmission. And receiving data data such as voice (step S431). Repeating the steps of searching the network, connecting and judging the connection, and the data transmission method described in FIG. 5, the wireless communication device of the present invention can be roamed between the base stations. And performing seamless connection and data access. The fifth figure is a schematic diagram of an embodiment of a data transmission architecture according to an embodiment of the present invention. A wireless communication device having two sets of network addresses, which utilizes a network address conversion mechanism of the network module 50 to roam between the network segments of each wireless base for smooth seamless transmission. In the figure, the wireless module 50 simulates a virtual continent (3) client group 53 that supports two sets or complex array network addresses (including related domain information) to receive the first wireless base. The first network address IP1 assigned by the computer 建立ι establishes a first connection; and the second wireless base station AP2 that is also searched receives the allocated second network address ίρ2 to establish a second connection. The quality of the road and the strength of the signal determine whether the data is transmitted by the first connection or the second connection. Therefore, only one of the connections is transmitted at a time. The first network address ΙΡ1 and the second network address ΙΡ2 shown in the figure are the public network addresses allocated by the line base stations 1, ΑΡ2, and the area covered by each base station has different networks. The network address of the segment. The original DHCP client module 55 in the wireless module 50 receives the virtual network address 卟3 assigned by the simulated DHCP server module 58 in the basin, and the domain information, the virtual network address lp3 For the private network (Private) network address in the wireless module 5, the wireless 5G in the wireless communication device does not need to change the network at any time due to the occurrence of roaming events. The network address translation (NAT) unit 54 uses the base station 2 Z = the first network address IP1 or the second network address 1P2 to borrow the NAT mechanism 2, :, , and the private virtual network address Ip3. Similarly, after the reverse conversion is applied, the network link layer 56 of the entity in the wireless module 5 and the entity=layer+57 standby NAT mechanism are converted into a public domain to receive money to transmit data, so that the two modules, And 50 does not need to change the network settings at any time due to roaming, causing errors or delays.
五圖之架構的無線通訊裝置資 口月茶閱弟六圖所示藉第 料傳輸流程圖。 一開=，開啟該無線通訊裝置（步驟S601)，由其中 =DHCP客戶端馳對其⑽於網路餘巾峰體或軟體 拉擬之DHGP健賴組請求—虛擬網路位址（ίρ3)(步 ，S^03) ’此h搜哥到無線訊號，並建立與第—無線基地 °之弟一連線（步驟_)，由此基地台分配第—網路位 =(IP1)’並傳送招關網域資訊給無線模組中模擬之耐 各戶端模組（步驟S607)。 接者 、、工得止機^制傳送或接收資料（步驟S609)， 二、中之-實施例係轉換上述之第一網路位址（ιρι)與該虛 -ΐ:路位f (Ifi) ’再由其中之實體網路部份接收或傳送 ^料。之後，搜寻附近可用的無線訊號（步驟s6ii)，當 搜:到另—無線訊號’如第二無線基地台，則可進行與其 =弟二連線，使進行漫❸讀基地台時能隨時接手原本之 傳^步驟㈣）。連線後，即由第二無線基地台分配第 -無線網路位址（1p2)，並傳送相關網域資訊（步驟 14 ⑧The wireless communication device of the five-figure structure is shown in the sixth diagram of the data transmission. One on =, the wireless communication device is turned on (step S601), and the DHGP health group request (virtual network address (ίρ3) is selected by the DHCP client to (10) the network wasteband or software. (step, S^03) 'This h search brother to the wireless signal, and establish a connection with the first - wireless base ° brother (step _), whereby the base station assigns the first - network bit = (IP1) ' Transmitting the domain information to the simulated terminal module in the wireless module (step S607). The receiver, the worker stops the transmission or receives the data (step S609), and the second embodiment - converts the first network address (ιρι) and the virtual-ΐ: the road location f (Ifi ) 'Received or transmitted by the physical network part of it. After that, search for nearby wireless signals (step s6ii), and when searching: to another wireless signal, such as the second wireless base station, you can connect with the second brother, so that you can take over when you are reading the base station. The original pass ^ step (four)). After the connection, the second wireless base station allocates the first wireless network address (1p2) and transmits the relevant network information (step 14 8)
1273785 S615)。 當無線通訊裝置進行移動而偵、測到漫遊事件，而使連 線轉至第二無線基地台（步驟S617)，此時仍以該nat車奎 址機制傳送或接收資料（步驟S619)，此時係停止與第: 無線基地台的資料傳輸（第一連線），而經第二無線基地台 所分配的第二網路位址（IP2)經MT轉址為私有的虛擬; 路位址（IP3)，再由其中之實體網路部份接收或傳送資料。 藉重複上述步驟，當無線通訊裝置漫遊於各網域中， 仍因本發明所揭露藉内部之N A T轉址機制的資料存取方法 達成無接缝傳輸之目的。 彳 所附圖式僅提供參考與說明用，並非用來對本發明加 以限制者。 、、、綜上所述，本發明為一無線通訊裝置基地台切換與資 料存取方法係藉一然線模組内模擬一虛擬之DHcp伺服器 模組與DHCP客戶端模組，再藉其中網路位址轉換機制，& 能於漫聽魏個祕基地㈣時，仍能達到無接缝之 t目^實為—不可多得之發明物品，及具產業上之利 ^新祕及進步性’完全符合發明專利申請要件，爰 yf提出申明，畋請詳查並賜準本案專利，以保障發明者 f隹以上所返僅為本發明之較佳可行實施例，非因此即 =本發明，專利範圍，故舉凡運用本發明說明書及圖示 合=為之等效結構變化，均同理包含於本發明之 内，合予陳明。 15 ⑧ 12737851273785 S615). When the wireless communication device moves to detect and detect the roaming event, and the connection is transferred to the second wireless base station (step S617), the data is still transmitted or received by the nat car address mechanism (step S619), The time stops and the data transmission (the first connection) of the wireless base station, and the second network address (IP2) allocated by the second wireless base station is transferred to the private virtual via the MT; the road address ( IP3), and then receive or transmit data from the physical network part of it. By repeating the above steps, when the wireless communication device roams in each network domain, the seamless access is achieved by the data access method of the internal N A T forwarding mechanism disclosed by the present invention. The drawings are provided for reference and description only and are not intended to limit the invention. In summary, the present invention is a wireless communication device base station switching and data access method by means of a virtual line module to simulate a virtual DHcp server module and a DHCP client module, and then borrow The network address conversion mechanism, & can be used to listen to Wei's secret base (4), still can achieve the seamless t-mesh - the rare inventions, and the industrial benefits ^ new secret and Progressive' is in full compliance with the requirements of the invention patent application, 爰yf filed a statement, please check and grant the patent in this case to ensure that the inventor's return is only a preferred and feasible embodiment of the present invention, and therefore is not The invention, the scope of the patent, and the equivalent structural changes of the present invention and the accompanying drawings are all included in the present invention and are combined with Chen Ming. 15 8 1273785
TCP/IP 202 DHCP伺服器模組203 第一 TCP/IP網路協定層205a 第一網路鏈結層206a DHCP客戶端模組204 第二TCP/IP網路協定層205b 第二網路鏈結層206b 第二實體物理層207b 無線通訊裝置30 第一無線基地台API 第二無線基地台AP2 省電模式訊息301 請求訊號3 0 2 第一網路位址IP1 第二網路位址IP2 虛擬網路位址IP3 網路模組50 虛擬DHCP客戶端模組53 NAT網路位址轉換單元54 DHCP客戶端模組55 網路鏈結層56 實體物理層57 DHCP伺服器模組58TCP/IP 202 DHCP Server Module 203 First TCP/IP Network Protocol Layer 205a First Network Link Layer 206a DHCP Client Module 204 Second TCP/IP Network Protocol Layer 205b Second Network Link Layer 206b second physical layer 207b wireless communication device 30 first wireless base station API second wireless base station AP2 power saving mode message 301 request signal 3 0 2 first network address IP1 second network address IP2 virtual network Road address IP3 network module 50 virtual DHCP client module 53 NAT network address translation unit 54 DHCP client module 55 network link layer 56 physical layer 57 DHCP server module 58