TW200803254A - Wireless network system and method for transmitting and receiving data in the wireless network - Google Patents
Wireless network system and method for transmitting and receiving data in the wireless network Download PDFInfo
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- TW200803254A TW200803254A TW096115243A TW96115243A TW200803254A TW 200803254 A TW200803254 A TW 200803254A TW 096115243 A TW096115243 A TW 096115243A TW 96115243 A TW96115243 A TW 96115243A TW 200803254 A TW200803254 A TW 200803254A
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- 238000004891 communication Methods 0.000 claims abstract description 31
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/24—Cell structures
- H04W16/28—Cell structures using beam steering
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/26—Resource reservation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
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Abstract
Description
200803254 —---w ** 九、發明說明: 【發明所屬之技術領域】 本發明是有關於一種無線網路與在此無線網路中傳送 與接收資料的裝置與方法,且特別是有關於一種無線網路 - 系統以及在無線網路中傳送與接收資料的方法,其中在其 参 超訊框(superframe)中具有用於定向搜索的特定時間週 期以致能以高頻率頻寬完成方向性通訊的工作站,以有效 A 地執行定向搜索。 > 【先前技術】 圖1是繪示採用請求-發送(ReqUest_To_Send,RTS) 與清除-發送(Clear-To-Send,CTS)訊號的半雙工無線網 路的不意圖。 一般來說,無線網路會由於其無法同時執行傳送與接 收而採用半雙工機制。在使用半雙工機制存取無線媒體的 同時,RTS訊號111與CTS訊號121是用來避免由於媒體 佔用而造成的碰撞。 ® 具有欲傳送之訊框的發送工作站110會傳送RTS訊號 111來開始傳輸程序,並且已接受到RTS訊號m的所有 鄰近工作站會停止產生無線電波。在接收到RTS訊號Hi - 之後’接收工作站12〇會以CTS訊號121來回應RTS訊 ‘ 號m,其會依次使所有鄰近工作站停止產生無線電波。 接收到CTS訊號121的發送工作站11〇會傳送訊框112並 且之後從已接受到訊框112的接收工作站12〇中接收確認 訊號122。 6 200803254 具碰撞避免的載波感測多重存取(carrier sense multiple access with collision avoidance, CSMA/CA )是由乙 太網路中的分散協調功能(distributed coordination function, DCF )來提供,其一般是在無線區域網路(l〇cai area network, LAN )的環境下所使用的媒體存取控制(Media Access Control,MAC)演算法,其會在發送工作站Π〇傳送訊框 112之前判斷無線連結是否為空的,並且在各別訊框112 的結束時間裡使用任何後移(back-off)來避免與其他工作 站石亚才童。 載波感測功能是用來判斷傳輸媒體是否可用,並且可 分為用以實體感測載波的功能與用以虛擬感測載波的功 能。實體感測載波的功能是由實體層來提供,並且是依據 所採用的媒體與所使用的調變機制。虛擬感測載波的功能 是由網路配置向量(network allocation vector,NAV )所提 供’其中NAV會對應計時器,其包含媒體已保留之情況 中的時間資訊。在此,NAV是包括在RTS訊號111與CTS 訊號121的訊框標頭中且由此訊框標頭來傳送,以及發送 工作站110與接收工作站120皆會設定時間至]s[AV以避 免其他工作站使用此媒體,此為完成其運作所必須的。 其間’在無線個人網路(Personal Area Network,PAN ) 下’計時是依據超訊框。 圖2是繪示習知超訊框的示意圖,其中超訊框2〇〇包 括信標週期21〇、競爭存取週期22〇以及通道時間配置週 期 230。 200803254 競爭存取週期220是用於傳送或接收非同步資料或控 制指令。通道時間配置週期230包括通道時間配置(channd time allocation,CTA ) 232與管理通道時間配置 (management channel time allocation,MCTA) 213,並且 是用於傳送或接收控制指♦、等時資料(is〇chr_usdata) 或非同步資料。 —观爭存取週期220的長度是由存取點來決定,並且會 藉由放佈至週期210的信標訊框來傳送至組成網路的 工作站。 在競爭存取週期220期間,上述CSMA/CA會用作為. 媒體存取機制。在通道時間配置週期23G期間,會使用分 Γί!! (Time Di™ Access, TDMA) ^ 制’二、有用於每一工作站的特定時窗。在此,存取點备 =通道時_期給請求存取賴的 配^ 期間傳送至相關工作站或從 =_的工作站,並且;:為置二 ΜΑ錄存取或使用槽式ALOHA協定。/、疋 用數另二使用ΐ GbPS頻寬傳送無壓縮㈣的機制會鱼# 大於芦二頻見傳送壓縮資料的機制-起被測試。i;斗旦 2,料的無壓縮資料僅可使用數十Gbps的ϋ 傳^。在封包於資料傳送期間遺失的^ 來 在貧料輸出上的影響比魏㈣小。 *縮資料 以焉頻頻寬的資料傳送與接收可經由方向性通訊來完 8 200803254 在兩工作站的方向為彼此不同的情況中, 因此’兩工作站必須改變通訊的曰、 3向搜索。在定向搜索完成的情況中 由八他工作站或協調者所使用時,則其盔法—二 【發要在工作站之_定’^ 因此’本發明用以解決習知 發明的目的在此提供用以在無線網路7中傳送盘 =立時間週期以致能以高頻率頻寬完成== 的工作站,以有效地執行定向搜索。 由 本查明的目的就是提供一種在無線網路系 ,路協調器。此協調器包括媒體存取控制單元、頻 媒體存取控制單元用以產生建構超訊框 框,超訊框包括至少一個通道時間區塊。頻寬管 以在通道時間區塊之中設定特定通道時間區塊給 在麟中的工作站之中傳送與接收用於定向搜*㈤細 search)的封包的時間週期(齡州⑽)。傳輪單元 透過^通訊通道傳送具有在設定上之#訊的信襟訊框。 盥接再—目蚊提供—種在無線網路_中傳送 與接收貢料的工作站。此工作站包括媒體存取控制單元i 傳輸單元。媒體存取控鮮元用以產生在包括於超訊框中、 9 200803254 傳輸單元。媒體存取控制單元 的一個或多個通道時間區魏之中二產生在包括於超訊框中 求頻見配置的封包。傳輪單元,疋通道時間區塊中請 應請求頻寬配置的封包時 /虽已執行頻寬配置以回 通訊通道傳送請求定向搜索的=道時間區機中透過指定 本發明的又一目的是提供—匕。 網路的方法,包括:產生椹:種在無線網路系統中架構 具有至少-個通道時間區塊°框的信標訊框,超訊框 定通道時間區塊給在網路中的,道時間區塊之中設定特 定向搜索的封包的時間购7站之中傳送與接收用於 具有在設定上之資訊的信標訊框。透過預定通訊通道傳送 本發明的另一目的是提供— 與接收資料的方法,包括··用以 热線網路系統中傳送 一個或多個通道時間區塊之中在包括於超訊框中的 頻寬配置的封包姆 配置以回應所傳送的封包時在)%:=行頻寬 定通訊通道傳送請求定向搜索的=物間區塊中透過指 本發明提出一種封包資斜纟士 框中的-個或多個通道時門^籌j/、用以在包括在超訊 中請求頻寬配在特定通道時間區塊 收用於定向搜間區塊用作為傳送與接 至小ιί索包間的時間週期,此結構包括以下 曰^\之一·目的地識別符欄位,詳述請求頻寬配置的 ^作站的識別符;串流請求識別符攔位,詳述在目標 作站接收到串流索引之前已請求的資訊的識別符;串流 10 200803254 宗弓I攔位 中傳送或接=;::索道時間區塊 通道時間區塊的數目;時間區塊持續訊框中特定 訊框中各別通道時_塊之間的持續期門詳述在超 欄位,詳述在兩個用於此配 巴=小排程週期 之間允許的時間;以及優先·塊的開始時間 封包的優先權。 σ平返凊求頻寬配置的200803254 —---w ** IX. Description of the Invention: [Technical Field] The present invention relates to a wireless network and an apparatus and method for transmitting and receiving data in the wireless network, and in particular A wireless network-system and method for transmitting and receiving data in a wireless network, wherein in its superframe, there is a specific time period for directed search to enable directional communication with high frequency bandwidth The workstation performs a directed search with a valid A. > [Prior Art] FIG. 1 is a schematic diagram showing a half-duplex wireless network using a ReqUest_To_Send (RTS) and a Clear-To-Send (CTS) signal. In general, wireless networks use a half-duplex mechanism because they cannot perform both transmission and reception. While accessing the wireless medium using the half-duplex mechanism, the RTS signal 111 and the CTS signal 121 are used to avoid collisions due to media occupancy. The transmitting station 110 with the frame to be transmitted transmits the RTS signal 111 to start the transmission process, and all neighboring stations that have received the RTS signal m stop generating radio waves. After receiving the RTS signal Hi -, the receiving station 12 will respond to the RTS message with the CTS signal 121, which in turn will cause all neighboring stations to stop generating radio waves. The transmitting station 11 receiving the CTS signal 121 transmits a frame 112 and then receives an acknowledgment signal 122 from the receiving station 12 that has received the frame 112. 6 200803254 Carrier sense multiple access with collision avoidance (CSMA/CA) is provided by the distributed coordination function (DCF) in the Ethernet network, which is generally A Media Access Control (MAC) algorithm used in the environment of a wireless area network (LAN), which determines whether the wireless link is before transmitting the workstation/transmitting frame 112. It is empty and uses any back-off at the end of each frame 112 to avoid being connected to other workstations. The carrier sensing function is used to judge whether the transmission medium is available, and can be divided into a function for physically sensing a carrier and a function for virtual sensing a carrier. The function of the entity sensing carrier is provided by the physical layer and is based on the media used and the modulation mechanism used. The function of the virtual sensing carrier is provided by a network allocation vector (NAV), where the NAV corresponds to a timer containing time information in the case where the media has been reserved. Here, the NAV is included in the frame header of the RTS signal 111 and the CTS signal 121 and transmitted by the frame header, and both the transmitting station 110 and the receiving station 120 set the time to [sAV] to avoid other The workstation uses this media, which is required to complete its operation. In the meantime, the 'time under the Personal Area Network (PAN)' is based on the hyperframe. 2 is a schematic diagram showing a conventional hyperframe, wherein the hyperframe 2 includes a beacon period 21, a contention access period 22, and a channel time configuration period 230. 200803254 The contention access period 220 is used to transmit or receive asynchronous data or control instructions. The channel time configuration period 230 includes a channd time allocation (CTA) 232 and a management channel time allocation (MCTA) 213, and is used for transmitting or receiving control fingers and isochronous data (is〇chr_usdata). ) or asynchronous data. The length of the watch-through access cycle 220 is determined by the access point and is transmitted to the workstations that make up the network by the beacon frame placed in cycle 210. During the contention access period 220, the above CSMA/CA will be used as a media access mechanism. During the channel time configuration period 23G, a Γί!! (Time DiTM Access, TDMA) system is used. 2. There is a specific time window for each workstation. Here, the access point backup = channel time _ period is sent to the relevant workstation or the workstation from =_ during the request access period, and is: for the second record access or use the slot ALOHA protocol. /, 疋 Use the other two to use ΐ GbPS bandwidth transmission uncompressed (four) mechanism will fish # greater than the two frequency see the mechanism to transfer compressed data - from the test. i; Douhan 2, the uncompressed data of the material can only be used for tens of Gbps. The loss of the package during the data transfer is less affected by Wei (four) than the Wei (four). * Reduced data Data transmission and reception with 焉 frequency bandwidth can be completed via directional communication. 200803254 In the case where the directions of the two workstations are different from each other, the two workstations must change the communication 3, 3-way search. In the case where the directional search is completed, it is used by the eight-station workstation or the coordinator, and then the helmet method is the same as the purpose of solving the conventional invention. A workstation that transmits a disk = a time period in the wireless network 7 so that the high frequency bandwidth is completed == is performed to efficiently perform the directional search. The purpose of this identification is to provide a system in the wireless network, road coordinator. The coordinator includes a media access control unit, a media access control unit for generating a constructed hyperframe, and the hyperframe includes at least one channel time block. The bandwidth is a time period (aged state (10)) in which a specific channel time block is set in a channel time block to transmit and receive a packet for direct search (five) search. The transmission unit transmits a signal frame having the # signal in the setting through the ^ communication channel.盥 再 — - Mosquitoes provide a kind of workstation that transmits and receives tributes in the wireless network _. This workstation includes a media access control unit i transport unit. The media access control element is used to generate the transmission unit included in the superframe, 9 200803254. One or more of the channel time zones of the media access control unit are generated in a packet that is included in the frame of the super-frequency frame. In the transmission channel unit, when the packet is requested to be bandwidth-configured, the bandwidth configuration is performed to return to the communication channel to transmit the request. The direction of the search is determined by the purpose of specifying another aspect of the present invention. Provide - 匕. The method of the network includes: generating a beacon: a frame of a beacon frame having at least one channel time block in the wireless network system, and the frame of the channel is given to the time zone in the network. Among the blocks in the block, a time slot for specifying the packet to be searched is transmitted and received among the seven stations for the information having the information on the setting. Another object of the present invention is to provide and receive data by means of a predetermined communication channel, including: for transmitting one or more channel time blocks in a hot wire network system, included in a superframe The bandwidth configuration of the packet is configured in response to the transmitted packet when the %:= line bandwidth is determined by the communication channel transmission request directional search = in the inter-block, by the present invention, a packet is provided in the sloping gentleman box - One or more channel gates, used to request the bandwidth in the super channel to be used in the specific channel time block for the directional inter-segment block for transmission and connection to the small 索 索 包Time period, this structure includes the following 目的地^\················································································ The identifier of the information requested before the stream index; stream 10 200803254 The transmission or connection in the Zonggong I block =;:: the number of the channel time block channel block; the time block continuous frame specific message Between each block in the box _ block between continuations The gate is detailed in the super field, detailing the time allowed between the two for this allocation = small scheduling period; and the priority of the priority block start time packet. σ flat back to the bandwidth configuration
【實施方式】 ^讓本發明之上述和其他目的、特徵、和糾能更明 鱼元件)1 IT財巾所㈣㈣容(例如詳細結構 二=)疋用以幫助綜合的瞭解本發明。 =明亦可在非此些所定義之内容下完成。在= 相同7L件麥考編號在不關式巾是表示相同的元 y,樣的’在下述描述中會省略孰知功能或結構以使得 柄述本發明的技術特徵時更為清楚。 入- f 3疋根據本發明範例實施例缘示無線網路系統的栖L 心示思圖。!線網路系統包括無線網路協調者與無線 網路工作站321、322、323與324。 恶線網路協調者310會傳送信標訊框,並且用以控制 存於網路中的工作站321、322、323與324的頻寬配置。 即構成此網路的一個或多個工作站321、322、323與324 會苓考所接收的信標訊框,並且待命獲取頻寬配置。而, 在頻見配置於工作站的情況中,此工作站可在所配置的頻 200803254 寬中傳送資料至其他工作站。 士根據本發明範例實施例的網路是 %間區塊的超訊框有關來架構m 士至少-個通道 塊疋對應保留以使得頻寬可 ^通運時間區 的時間週期並且非保留通道時間;2:中之特地工作站 置給在網路甲透過在工作站之姐心而:其中頻寬是配 時間週期。在此,通道時間區塊是擇的工作站的 作站之中資料傳送或接收的時間週期^3ΐ於網f中的工 間區塊與非保留通道時間區塊分別地對廡:保留通這時 期與競爭存取週期。 #應通逼時間配置週 欲傳送資料的工作站必須 其他工作站競爭以傳送此資料,區塊中與 工作站的保留通道時間區塊中傳送資、^月匕夠在配置給此 塊,=特框I包括至少一個保留通道時間區 於定====日區塊可奴為在傳送或接收用 期(=::=:(以下稱為“定向搜索封包,,)的週 間配_寬的任何期期 搜索索封包可分為請求定向搜索的封包與回應定向 索的封包i傳細乍站能夠傳送請求定向搜 作站(即站。基此,傳送此資料的工 、乍站)运元成定向搜索來傳送回應定向搜 12 200803254 索的封包以回應接收請求定向搜索的封包。 包,定向搜索封 中頻寬配置請求會在 的人見給接收工作站,其 過在網路中的工;站二的V爭來:留通道時間區塊中透 索週期期間請求頻寬配行。在此,在定向搜[Embodiment] The above and other objects, features, and corrections of the present invention are made clear. The fish component (4) (4) (for example, detailed structure 2 =) is used to help comprehensively understand the present invention. = Ming can also be completed without the content defined above. The same 7L piece of the McCaw number is indicated by the same element in the case of a non-closed towel, and the like function is omitted in the following description so as to make the technical features of the present invention clearer. In-f 3疋 illustrates a habitat diagram of a wireless network system in accordance with an exemplary embodiment of the present invention. ! The wire network system includes wireless network coordinators and wireless network workstations 321, 322, 323, and 324. The bad line network coordinator 310 transmits a beacon frame and controls the bandwidth configuration of the workstations 321, 322, 323, and 324 stored in the network. That is, one or more of the workstations 321, 322, 323, and 324 that make up the network will reference the received beacon frame and stand by to obtain the bandwidth configuration. However, in the case of frequent configuration on the workstation, this workstation can transfer data to other workstations in the configured frequency of 200803254. According to an exemplary embodiment of the present invention, the network is a hyperframe related to the % inter-block, and at least one channel block is reserved correspondingly so that the bandwidth can be a time period of the transit time zone and the non-reserved channel time; 2: The special workstation in the middle is placed in the network through the sister of the workstation: the bandwidth is matched with the time period. Here, the channel time block is the time period during which the data transmission or reception is performed in the station of the selected workstation, and the inter-block and the non-reserved channel time block in the network f are respectively opposed to each other: With a competitive access cycle. # should force the time to configure the workstations that want to transmit data in the week. Other workstations must compete to transmit this data. In the block and the reserved channel time block of the workstation, the data is transmitted in the block, and the monthly configuration is given to this block. Including at least one reserved channel time zone in the ==== day block can be used as the period of the transmission or reception period (=::=: (hereinafter referred to as "directional search packet,") The search packet can be divided into a packet requesting a directed search and a packet responding to the directional cable. The station can transmit a request to the search station (ie, the station. Based on the work, the station transmitting the data) The search sends a response to the targeted search 12 200803254 to respond to the packet requesting the targeted search. The package, the directed search, the bandwidth configuration request will be seen by the person receiving the workstation, and the work in the network; V contends: requesting bandwidth allocation during the cable period in the time zone of the channel. Here, in the directional search
二=優第先,用於不同目的之請求頻 作站』為弟二頻寬配置請求封包)。例如,當第-工 -、弟—工作站分別地傳送第一主' ,,置請求封包時,依照第—頻寬配置二求封 頻寬配置請求封包的縣權,無“路協^器 曰在特定保留通道時間區塊中配置頻寬給第一工Second = excellent first, the requesting frequency station for different purposes is configured for the second bandwidth configuration request packet). For example, when the first-worker-child-station-station transmits the first master' separately, and the request packet is set, the county right of the request bandwidth packet is configured according to the first-bandwidth configuration, and there is no "road association" Configure the bandwidth to the first job in the specific reserved channel time block
站0 F 圖4是根據本發明範例實施例繪示通訊層的概念示意 圖。 ^ 一般來說,通訊層400包括通道層44〇、實體層43〇、 媒體存取控制(mecjia accesscontr〇i,MAc)層“ο與上層 410。通道層440是配置在最底層並且是在所指定無線電信 號傳播的頻率頻寬中的實體媒體。實體層43〇包括射頻 (radio frequenCy,RF)層432與基頻層431。在此,高於 MAC層420的上層410可包括長連結控制(l〇ng 1址 control,LLC)層、網路層、傳輸層、應用層等。 期間’根據本發明實施例射頻通道可不只包括低頻率 13 200803254 3寬(例如2遍z或5GHz),也包括高頻率頻寬(例如 6〇GHz )。因此,通道層44〇不僅可實行i方向 (nondirectional) iftfl,(unidirectional) 通 sfL。 圖5是根據本發明範例實施例繪示超訊框 :=Ε525Γ/括信標週期別、非保_時: /、524以及保留通逞時間區塊531盥532。 間區塊的數N以及保留通糊 塊N152f 時間區塊2 522與非保留通道時間區 “ 23之間可以有更多通道時間區塊。 框。線r協調器會散佈信標訊 頻寬並===後與另—工作站競爭以獲取網路中的 收資料。"夠傳送㈣至此"作站或從此卫作站中接 競爭中被選^之I作站彼此競爭期間的週期,並且僅在 6擇的卫作站可在所配置的頻K巾傳送資料。 工作間區塊531 # 532對應頻寬被配置於特定 所配置的S3’並且僅被配置頻寬的特定4站4 見中傳送欲傳送的資料。 非保留通=門如圖5所示’單—超訊框可包括至少-個 間區魏52卜522、523與524以及至少—個 14 200803254 广其中特定保留通道時間區 尾糾了。又疋為 _包至,或從,==:=定向 在獲取於此定向搜索期間所 =框::保留通道時間區塊中彼此競二= 置的封包至無_路協補來彼此競 ]明水須兑配置的封句(艮爸—办 求話說’在接收到第一與第二頻^己^請 =處理::使得表示頻二 寬配置,二=或:::=器會_二頻 訊框對應保留通道時間區塊’並且接收此信標 索週期期間被資料,以支援在此定向搜 包的本例緣示請求頻寬配置的封 括識別符攔位配置請求封包6〇0包 求項欄位630。 攔位62G與至少—個頻寬配置請 的: = :: =旗標或唯-識別符,其表示有關 士匕,亚且大小欄位62Q包括頻寬配 200803254 ~ - · -r-~ 1㉖求封包的大小。 母個頻寬配置請求項欄位糾、632與ό3 日 ⑹、區求識職欄位松、串物丨· 持病期nift 1位(即用於區塊數的攔位)咖、時間區塊 65;最::P用於在時間區塊間持續_^ 55取小排程週期_ 656與優先權欄位657等 ) 少-個攔位。在圖6的_實施例中,:Station 0 F Figure 4 is a conceptual diagram showing a communication layer in accordance with an exemplary embodiment of the present invention. In general, the communication layer 400 includes a channel layer 44, a physical layer 43, a media access control (mecjia accesscontr〇i, MAc) layer "o and an upper layer 410. The channel layer 440 is disposed at the lowest level and is in the The physical medium in the frequency bandwidth of the radio signal propagation is specified. The physical layer 43 includes a radio frequency (RF) layer 432 and a base frequency layer 431. Here, the upper layer 410 above the MAC layer 420 may include long link control ( L〇ng 1 address control, LLC) layer, network layer, transport layer, application layer, etc. During the period according to the embodiment of the present invention, the radio frequency channel may include not only the low frequency 13 200803254 3 wide (for example, 2 passes z or 5 GHz), Including the high frequency bandwidth (for example, 6 〇 GHz). Therefore, the channel layer 44 〇 can implement not only the nondirectional iftfl, but also the unidirectional sfL. Fig. 5 is a diagram showing a hyperframe according to an exemplary embodiment of the present invention: Ε 525 Γ / Include beacon period, non-guaranteed _: /, 524 and reserved overnight time block 531 盥 532. Number of inter-block N and reserved pass block N152f time block 2 522 and non-reserved channel time zone "There can be more channel time zones between 23 . frame. The line r coordinator will spread the beacon bandwidth and === and then compete with the other workstation to obtain the data in the network. "Enough transmission (four) to this " station or from this servant station in the competition to be selected in the competition for the period of the competition, and only in the 6 selected station can be transmitted in the configured frequency data. The workspace block 531 # 532 corresponds to the bandwidth allocated to the specific configured S3' and only the specific 4 stations 4 to which the bandwidth is configured see the information to be transmitted. Non-reserved pass = gate as shown in Fig. 5 The 'single-superframe' may include at least one interzone Wei 52 522, 523 and 524 and at least one of the 2008 2008 254 wide areas in which the specific reserved channel time zone is corrected. Also _package to, or from, ==:= directional in the acquisition of this directional search period = box:: reserved channel time block in the competition for each other = set of packets to no _ road complement to compete with each other] Mingshui must be configured with the sentence (艮 Dad - do the words say 'receive the first and second frequency ^ already ^ please = deal with:: make the frequency two width configuration, two = or:::= device will _ The second frequency frame corresponds to the reserved channel time block 'and receives the data during the beacon period to support the packet identifier configuration request packet of the present example request bandwidth configuration. 0 package item field 630. Block 62G and at least - bandwidth configuration please: = :: = flag or only - identifier, which indicates that the gentry, sub-size field 62Q includes bandwidth with 200003254 ~ - · -r-~ 126 Find the size of the packet. The parent bandwidth configuration request field correction, 632 and ό3 days (6), the district seeking the job field loose, the string 丨 · the sick period nift 1 (useful In the block number block) coffee, time block 65; most:: P is used to continue between time blocks _ ^ 55 take small scheduling period _ 656 and priority field 657, etc.) less - Stopped position. In the embodiment of Figure 6,:
括在第-頻寬配置請求項631。 枝攔位疋包 在上述中,目的地識別符欄位651包括請求頻寬 的工作站的識別符。 串流請求識別符欄位652包括在從無線網路協調器中 接收串流索引之前工作站已請求的資訊的識別符。倘若所 睛求的資訊是用於請求關於新等時串流的頻寬配置時,則 串流請求識別符會設為非唯一零的值,其中唯一零是在配 置頻見至此工作站的數個請求之中由此工作站來產生。之 後,在整個新串流被傳送或接收的封包交換程序的從頭到 尾此串流請求識別符會維持其設定值。倘若所請求的資訊 疋修改或消除現有串流,或者請求關於非同步資料的頻寬 配置時,則此串流請求識別符會設為零。 串流索引欄位653包括串流索引,其是由無線網路協 調器所指派,並且所指派的串流索引表示被指派來在通道 時間區塊中傳送或接收的資料的型態。例如,在工作站請 求等時串流產生的案例中,會指明非指派串流索引,其中 此串流索引可以是由此工作站所定義的值。其間,倘若此 16 200803254 工作站請求非时通道Bn㈣ 引可設為此非同步串流的值。同索;b =用,,值,其中當此串流索引搁= 了 :、4見的值日寸’貝,J此有關封包可主張頻寬配置請求封 巴0 區塊數攔位654 間區塊的數目。 具體地包括在超訊框中請求的通道時The first bandwidth configuration request item 631 is included. In the above, the destination identifier field 651 includes the identifier of the workstation requesting the bandwidth. The Streaming Request Identifier field 652 includes an identifier of the information that the workstation has requested before receiving the streaming index from the wireless network coordinator. If the desired information is used to request a bandwidth configuration for the new isochronous stream, then the stream request identifier will be set to a non-unique zero value, where the unique zero is in the configuration frequency to the workstation. Several requests are generated by this workstation. Thereafter, the stream request identifier maintains its set value from beginning to end of the packet exchange procedure in which the entire new stream is transmitted or received. This stream request identifier is set to zero if the requested information modifies or eliminates an existing stream, or requests a bandwidth configuration for asynchronous data. Streaming index field 653 includes a stream index, which is assigned by the wireless network coordinator, and the assigned stream index represents the type of material that is assigned to be transmitted or received in the channel time block. For example, in a case where a workstation request isochronous stream is generated, an unassigned stream index is indicated, where the stream index can be a value defined by the workstation. In the meantime, if this 16 200803254 workstation requests a non-time channel Bn (four), it can be set to the value of this asynchronous stream. Same as the same; b = use,, value, where when the stream index is =:, 4 see the value of the day 'Bei, J this about the packet can claim bandwidth configuration request block 0 block number block 654 The number of blocks. Specifically including the channel requested in the superframe
時間區塊持續期間攔位655具體地包括在包含在超訊 框的各別通道時間區塊之間的持續期間。 ^小排程週期攔位656具體地包括在用於此配置的兩 個連績時間的開始時間之間的最小允許時間。 優先權攔位657具體地包括串流的優先權。優先權可 用作為串流的服務品質的等級或特定使用,並且在請求定 期定向搜索的情況中優先權是最高的。 因此,在所接收的封包之中,無線網路協調器會先執 =包括優先權欄位的封包的處理,此優先權欄位包括請求 定向搜索之頻寬配置的封包的優先權。 圖7是根據本發明範例實施例繪示無線網路協調者的 方塊圖。請參考圖7,無線網路協調器700包括中央處理 單元(Central Processing Unit,CPU) 710、記憶體 720、媒 體存取控制(media access control,MAC)單元 740、頻寬 管理單元750與實體(PHYsical,PHY)單元760。 CPU 710會控制連接至匯流排730的其他單元,並且 17 200803254 處理關於上層410 (如圖4所示)的程序。因此,CPU710 會處理接收資料(接收媒體存取控制服務資料單元( access control service data unit,MSDU))或產生傳輸資料 (傳輸MSDU),其中接收資料是由MAC單元740提供, 而傳輸資料是之後提供至]VIAC單元740。The time block duration block 655 is specifically included for the duration between the respective channel time blocks contained in the hyperframe. The small scheduling period intercept 656 specifically includes the minimum allowed time between the start times of the two synchronic times for this configuration. Priority block 657 specifically includes the priority of the stream. The priority can be used as a level of service quality for the stream or for a particular use, and the priority is highest in the case of a periodic directed search. Therefore, among the received packets, the wireless network coordinator will first perform the processing of the packet including the priority field, which includes the priority of the packet requesting the bandwidth configuration of the directed search. Figure 7 is a block diagram showing a wireless network coordinator in accordance with an exemplary embodiment of the present invention. Referring to FIG. 7, the wireless network coordinator 700 includes a central processing unit (CPU) 710, a memory 720, a media access control (MAC) unit 740, a bandwidth management unit 750, and an entity ( PHYsical, PHY) unit 760. The CPU 710 will control other units connected to the bus 730, and 17 200803254 will process the program regarding the upper layer 410 (shown in Figure 4). Therefore, the CPU 710 processes the received data (received access control service data unit (MSDU)) or generates the transmitted data (transmitted MSDU), wherein the received data is provided by the MAC unit 740, and the transmitted data is after Provided to] VIAC unit 740.
Afe、體720用來儲存資料,並且是一種模組,例如硬 碟、光碟、快閃記憶體、小型快閃(c〇mpact Flash, CF )Afe, body 720 is used to store data, and is a module, such as a hard disk, a compact disc, a flash memory, a small flash (c〇mpact Flash, CF)
卡、安全數位( secure digital,SD )卡、智慧媒體(smart media, SM)卡、多媒體卡(multimediacard,MMC)、記憶棒與其 他能夠輸入/輸出資訊的媒體。記憶體72〇可内建於無線網 路協调為700中,或者記憶體72〇可以是獨立的設備。 MAC單7〇 740用作為產生信標訊框以架構超訊框,超 訊框包括至少一個通道時間區塊。在此,頻寬管理單元75〇 可设定在保留通道時舰塊之中指定的保留通道時間區塊 給在網路巾之讀站㈣迫傳送或接蚊向搜索封包的週 期(即定向搜索週期)。 同日守田頻覓管理單元設定至少一個通道時間區塊至 定向搜索週期時,則單-超訊框可包括至少-_向搜索 PHY單元會將纟MAC單元74〇所產生的信 框轉換為無線電訊號,並且用以透過指定軌通道送 此無線電訊號。為此目的,ρΗγ單元包括基頻處理哭 761與RF單元762,並且ΡΗΥ單元760是連接至天線7 天線77G能夠在高頻頻帶中傳送或接收方向性無線電訊 18 200803254 =在此丄由RF單元762所形成的通訊通道包括 60GHz頻覓的通訊通道。 ° 的例括來自於請求定向搜索的接收工作站 的i:tC 於執行定向搜索的發送工作站 次口 i索回應封包的至少其中之—。即,在接收到卜 二料的接收卫作站檢查接收$敏度的同時 = ,度是弱的時,則接收工作站能夠在定向搜索二 間,达定向搜索請求封包至發送卫作站。發送工作站會執 行疋向技索且卩4後傳送此定向搜索回應封包以回應此定 ,索凊求封包。在此’所傳送與接收的資料不只包括壓縮 資料,也包括非壓縮資料。 ''Cards, secure digital (SD) cards, smart media (SM) cards, multimedia cards (MMCs), memory sticks, and other media that can input/output information. The memory 72 can be built into the wireless network coordination 700, or the memory 72 can be an independent device. The MAC single 7 740 is used to generate a beacon frame to construct a hyperframe, and the frame includes at least one channel time block. Here, the bandwidth management unit 75 can set the reserved channel time block specified in the ship block when the channel is reserved to the network station (4) forcibly transmitting or receiving the mosquito to search for the packet (ie, the directional search) cycle). When the Shuntian frequency management unit sets at least one channel time block to the directional search period on the same day, the single-hyper frame may include at least -_to the search PHY unit to convert the frame generated by the 纟MAC unit 74 into a radio signal. And used to send this radio signal through the designated track channel. For this purpose, the ρ Η γ unit includes a fundamental frequency processing 276 and RF unit 762, and the ΡΗΥ unit 760 is connected to the antenna 7 The antenna 77G is capable of transmitting or receiving directional radio signals in the high frequency band 18 200803254 = here by the RF unit The communication channel formed by the 762 includes a 60 GHz frequency communication channel. The example of ° includes the i:tC from the receiving workstation that requested the directed search. At least one of the sending workstations that perform the directed search responds to at least one of the packets. That is, when the receiving satellite station receiving the received material checks the reception of the sensitivity by =, the degree is weak, then the receiving station can reach the directed search request packet to the transmitting guard station in the directed search. The sending station will perform the sneak peek and send the directional search response packet after 卩4 in response to this request, requesting the packet. The data transmitted and received here includes not only compressed data but also uncompressed data. ''
^ a圖8是根據本發明範例實施例繪示工作站的方塊圖。 二苓ft?、圖8 ’工作站8〇〇包括CPU 81〇、記憶體82〇、Mac 單兀840、接收靈敏度檢查單元850、判斷單元860與PHY 早兀8 70。 CPU 810會控制其他連接至匯流排83()的單元,並且 負責關於上層410 (如圖4所示)的處理。 因此’ CPU 810會處理接收資料(接收媒體存取控制 服務資料單元(media access control service data unit, msdu))或產生傳輪資料(傳輸MSDU),其中接收資料 是由MAC單元840提供,而傳輸資料是之後提供至mac 單元840。 記憶體820用來儲存資料,並且是一種模組,例如硬 碟、光碟、快閃記憶體、CF卡、SD卡、SM卡、MMC、 19 200803254 記憶棒與其他能夠輸入/輸出資訊的媒體。記憶體82〇可内 建於工作站800中,或者記憶體820可以是獨立的設備。 MAC 840會將MAC標頭加入至由CPU 810所提供的 MSDU (即欲傳送的資料)中,並且產生媒體存取控制協 疋資料單元(media access control protocol data unit, MPDU)。 ’ PHY單元870會將由MAC單元840所產生的MPDU 轉換為恶線電訊號’並且用以透過指定通訊通道來傳送此 無線電訊號。為此目的,PHY單元87〇包括基頻處理器871 與RF單元872,並且PHY單元870是連接至夭線880。 天線880能夠在高頻頻帶中傳送或接收方向性無線電訊 號。 基頻處理器871會將訊號攔位與前文加入矣MAC單 元840所提供的MPDU,並且產生表現協定資料單元 (presentation protocol data unit,PPDU )。RF 單元 872 會將 PPDU轉換為無線電訊號,並且經由天線88〇傳送此無線 • 電訊號。 其間’為了用作為發送工作站,工作站8〇0不是在超 訊框中的保留通道時間區塊中獲取頻寬,就是在非保留通 • 道時間區塊中與其他工作站競爭。反之,為了祚為接收工 作站,工作站800能夠從其他工作站(即發送工作站)中 接收資料,之後檢查所接收資料的接收靈敏度,並且使發 达工作站執行定向搜索。以下,工作站8〇〇表杀接收工作 站。 20 200803254 PHY單元870可接收由發送工作站所傳送的資料,所 接收的資料會輸出至接收靈敏度檢查單元85〇。 接著’接收靈敏度檢查單元850會檢查所接收資料的 接收靈敏度以確定其強度小於關鍵值以產生檢查結果訊 號。 在接收到接收靈敏度檢查單元850的檢查結果訊號之 後’MAC單元840會產生定向搜索請求封包,之後會透過 指定通訊通料PHY單元_傳送此定向搜索請求^包至 發送工作站。發紅作財在包括於定向搜索請求封 的内容的基礎上執行定向搜索,並且傳送定向搜索Figure 8 is a block diagram showing a workstation in accordance with an exemplary embodiment of the present invention. Fig. 8 'Workstation 8' includes a CPU 81 〇, a memory 82 〇, a Mac 兀 840, a reception sensitivity check unit 850, a judgment unit 860, and a PHY 兀 8 70. The CPU 810 controls other units connected to the bus bar 83() and is responsible for the processing of the upper layer 410 (shown in Figure 4). Therefore, the CPU 810 processes the received data (media access control service data unit (msdu)) or generates the transport data (transmitted MSDU), wherein the received data is provided by the MAC unit 840 and transmitted. The data is then provided to the mac unit 840. The memory 820 is used to store data and is a module such as a hard disk, a compact disc, a flash memory, a CF card, an SD card, an SM card, an MMC, 19 200803254 memory stick and other media capable of inputting/outputting information. The memory 82 can be built into the workstation 800, or the memory 820 can be a standalone device. The MAC 840 adds the MAC header to the MSDU (i.e., the material to be transmitted) provided by the CPU 810, and generates a media access control protocol data unit (MPDU). The PHY unit 870 converts the MPDU generated by the MAC unit 840 into a bad line electrical signal' and transmits the radio signal through a designated communication channel. To this end, the PHY unit 87 includes a baseband processor 871 and an RF unit 872, and the PHY unit 870 is connected to the squall line 880. Antenna 880 is capable of transmitting or receiving directional radio signals in a high frequency band. The baseband processor 871 adds the signal block and the previous text to the MPDU provided by the MAC unit 840, and generates a presentation protocol data unit (PPDU). The RF unit 872 converts the PPDU into a radio signal and transmits the wireless signal via the antenna 88. In the meantime, in order to be used as a transmitting workstation, the workstation 8〇0 does not acquire the bandwidth in the reserved channel time block in the superframe, or competes with other workstations in the non-reserved channel time block. Conversely, in order to be a receiving workstation, workstation 800 can receive data from other workstations (i.e., transmitting workstations), then check the receiving sensitivity of the received data, and cause the transmitting workstation to perform a directed search. Below, the workstation 8 kills the receiving station. 20 200803254 The PHY unit 870 can receive the data transmitted by the transmitting station, and the received data is output to the receiving sensitivity checking unit 85. Then, the reception sensitivity checking unit 850 checks the reception sensitivity of the received data to determine that its intensity is less than the key value to generate the inspection result signal. After receiving the check result signal of the receiving sensitivity checking unit 850, the MAC unit 840 generates a directed search request packet, and then transmits the directed search request packet to the transmitting station through the designated communication PHY unit_. Redemption performs a directed search based on the content included in the targeted search request seal, and transmits a targeted search
包。 〜J 送/接收此定向搜索封包(即定向搜索請求封包 ”疋向搜索回應封包)是比其他麵的封包重要 =期定^射封包之傳送與接收會在保留通道時間區塊中 在超訊框的週期之巾的至少— /接收定向搜索封包。 配置頻見以傳送 即為了獲彻己置在指定包括在超 保留通道時間區塊之中的保留通道時間區塊中的::個 MAC單元84G會產生頻寬配置請尸員見’ _索的頻寬= = 的優先榷疋〶於其他封包的優 ^饱) 的單元-會優先執行“ = = ; 200803254 包的處理。基此,在設定通道時間區塊至在頻寬配置給定 向,索期間的週期(即定向搜索週期)之後,無線網路協 調器7〇〇會傳送回應封包以回應此設定。在此,回 包括信標訊框。 一 信標訊框會散佈至在網路中的所有工作站。判斷單元 860會苓考包括在信標訊框中的頻寬配置資訊來判斷是否 執行頻見配置,並且此判斯結果會提供至MAC單元。 φ 在執行頻見配置以回應工作站800的請求的案例中,ΡΗγ 單元870會在配置頻見的通道時間區塊(即定向搜索週期) 中透過指定通訊通道來傳送由MAC單元84〇所產生的定 向搜索請求封包。 其間,在網路中可有數個工作站,每個工作站會在超 訊框競爭週期期間彼此競爭以獲取頻寬的配置,並且每個 工作站能夠傳送頻寬配置請求封包。此時,獲取存取所使 用媒體的機制可包括具碰撞避免的載波感測存取(c arr i e r sense multiple access with collision avoidance,CSMA/CA) Φ 協定或槽式ALOHA協定。package. ~J send/receive this directional search packet (ie, directional search request packet) to the search response packet) is more important than other packets. The transmission and reception of the packet will be in the reserved channel time block. The frame of the period of the towel at least - / receives the directional search packet. The configuration frequency is transmitted in order to be completely placed in the reserved channel time block specified in the super reserved channel time block:: MAC unit 84G will generate bandwidth configuration. Please see the unit of ' _ cable's bandwidth = = priority 其他 其他 其他 其他 其他 - - - - - - - - - - - - - - - - - - - - - - 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 2008 Accordingly, after setting the channel time block to the period in which the bandwidth configuration is given, during the period (i.e., the directional search period), the wireless network coordinator 7 transmits a response packet in response to the setting. Here, the back includes the beacon frame. A beacon frame is spread across all workstations on the network. The judging unit 860 refers to the bandwidth configuration information included in the beacon frame to determine whether to perform the frequency configuration, and the result is provided to the MAC unit. φ In the case of performing the frequency configuration in response to the request of the workstation 800, the ΡΗ γ unit 870 transmits the generated by the MAC unit 84 through the designated communication channel in the channel time block (ie, the directional search period) in which the frequency is configured. Targeted search request packets. In the meantime, there may be several workstations in the network, each workstation competing with each other during the frame competition period to obtain a bandwidth configuration, and each workstation can transmit a bandwidth configuration request packet. At this time, the mechanism for obtaining access to the used media may include a carrier sense access (CSMA/CA) Φ protocol or a slot ALOHA protocol.
在從無線網路協調器700中接收到用於確認頻寬配置 的封包以回應頻寬配置請求封包的傳輸的案例中,MAC • 單元84〇會依上述程序產生資料,其中通訊通道具有 • 60GHz頻寬,並且其中所傳送的資料可以是壓縮資料。 在存於網路中的工作站之中具有頻寬管理單元75〇的 任何工作站都能夠作為無線網路協調器。即,在此案例中, 此工作站產生信標訊框來散佈此訊標訊框,並且之後能夠 22 200803254 提供此定向搜索週期給網路中的其他工作站。 圖9是根據本發明範例實施例、%示無線網 運作的流程圖。 當在網路中的工作站之巾從其他^站(即發送工作 站勃nt作站(即接收工作站)而需此發送工作 仃疋向=’、日'’則此接收玉作站會傳送頻寬配置請求In the case where a packet for confirming the bandwidth configuration is received from the wireless network coordinator 700 in response to the transmission of the bandwidth configuration request packet, the MAC unit 84 产生 generates data according to the above procedure, wherein the communication channel has • 60 GHz The bandwidth, and the data transmitted therein can be compressed data. Any workstation having a bandwidth management unit 75〇 among workstations stored in the network can function as a wireless network coordinator. That is, in this case, the workstation generates a beacon frame to distribute the beacon frame, and then can provide this directed search cycle to other workstations in the network. Figure 9 is a flow diagram showing the operation of a wireless network in accordance with an exemplary embodiment of the present invention. When the workstation in the network wipes from other stations (that is, the workstation is sent to the station (that is, the receiving station) and needs to send the work to the = ', day'', then the receiving station will transmit the bandwidth. Configuration request
來;,頻見配置5月求封包之後會由無線網路協調器7〇0 來接收(S910)。 、々時,頻寬配置請求封包會透過在超訊框中的非保留 ^逼日守間區塊來傳送’無線網路協調器7⑻在處理其他 包之前會先處理此封包。 —在接收頻寬配置請求封包之下,頻寬管理單元750可 =保留通道時間區塊給在網路巾的卫作狀帽送或接 =搜索封包的週期(即定向搜㈣期),其中此保留通 區塊是在超訊框中的保留通道時_塊之中被指定 再者MAC單元740會產生信標訊框以架構包括至少 二個通道時間區塊的超雜(S93G),並且其可用於信桿 訊框來包括頻寬配置資訊。 在、S930中所產生的信標訊框會在超訊框的信標週期 』間傳达’亚且會散佈至連接至此鹏具致能狀態的每個 作站(S940)。如此,配置頻寬的接收工作站與發送工 站接能夠在定向搜索週期期間接收與傳送定向搜索 包。 23 200803254 圖10是根據本發明範例實施例繪示工作站的運作的 流程圖。 凊芩照圖10,在網路中接收工作站能夠從發送工作站 中接收育料(S1010)。此時,接收工作站的接收靈敏度 - 檢查單元850會檢查所接收資料的接收靈敏度(S1020), 並且&供此檢查結果給MAC單元840。After that, it will be received by the wireless network coordinator 7〇0 after the configuration packet is requested in May (S910). In the case of 々, the bandwidth configuration request packet is transmitted through the non-reserved tamper-evident block in the hyperframe. The wireless network coordinator 7(8) processes the packet before processing other packets. - Under the receive bandwidth configuration request packet, the bandwidth management unit 750 can = reserve the channel time block for the period of the networked headset or the search packet (ie, the directed search (four) period), wherein When the reserved pass block is reserved in the superframe, the block is designated among the blocks, and the MAC unit 740 generates a beacon frame to construct a super-hybrid (S93G) including at least two channel time blocks, and It can be used in the letter box to include bandwidth configuration information. The beacon frame generated in S930 will be transmitted between the beacon periods of the hyperframe and will be distributed to each station connected to the pen-enabled state (S940). Thus, the receiving station and the transmitting station that configure the bandwidth can receive and transmit the directed search packets during the directed search period. 23 200803254 FIG. 10 is a flow chart showing the operation of a workstation in accordance with an exemplary embodiment of the present invention. Referring to Figure 10, the receiving station in the network can receive the nurturing from the transmitting station (S1010). At this time, the receiving sensitivity of the receiving station - the checking unit 850 checks the receiving sensitivity of the received data (S1020), and & gives the result of the check to the MAC unit 840.
Pxjvt上傳糾封包會傳送至無線網路協調器7< 早兀870會接收用於回應所傳送封包的封包 依據此結果,當其判斷其接收靈敏度等於或大於關鍵 _ ,日守則MAC單於840會進行資料的接收(sl〇3〇),並且 當其判斷其接收靈敏度小於關鍵值時則在保留通道時間區 塊中產生用於配置頻寬的封包(即頻寬配置請求封包), ^中,保留通道時間區塊是在—個或多健留 免之中。說單元840會致能ΡΗγ單元 來傳达所產生的頻寬配置請求封包(S1050)。 回應封包包括信標訊框。 700,並且 包。在此,The Pxjvt upload correction packet will be transmitted to the wireless network coordinator 7< 兀 870 will receive the packet for responding to the transmitted packet according to the result, when it judges that its receiving sensitivity is equal to or greater than the key _, the daily code MAC is only 840 Receiving data (sl〇3〇), and when it judges that its receiving sensitivity is less than the key value, a packet for configuring the bandwidth (ie, a bandwidth configuration request packet) is generated in the reserved channel time block, ^, The reserved channel time block is in the one or more health reserves. The speaking unit 840 enables the ΡΗ γ unit to communicate the generated bandwidth configuration request packet (S1050). The response packet includes a beacon frame. 700, and package. here,
24twenty four
200803254 保通可讀來進行其傳送與触。 所以其可以 描述明所減與如上所述依此架構的運作,以下將 乾例貫施例的範例效益與效用。 下將 資料======接收 =::r高頻頻寬來實施 雖財發明已雜佳實施·露如上,然其並 本發明,任何熟習此技藝者,在不脫離本發明之铲 =乾圍内,當可作些許之更動與潤飾,因此本發明之 範圍當視後附之申請專利範圍所界定者為準。 /、 【圖式簡單說明】 圖1疋、%不採用請求-發送(Request-To-Send,RTS) 除-發送(Clear-To-Send,CTS)訊號的半雙工無線網 路的示意圖。 圖2是繪示習知超訊框的示意圖 圖3是根據本發明範例實施例繪示無線網路系統的概 念示意圖。 圖4是根據本發明範例實施例繪示通訊層的概念示意 圖〇 圖5是根據本發明範例實施例繪示超訊框的概念示意 25 200803254 ——一r -200803254 Paulton can read and transmit it. Therefore, it can describe the operation of the architecture as described above, and the following examples will illustrate the benefits and effects of the example. Under the data ======receive =:: r high-frequency bandwidth to implement although the financial invention has been well implemented · as above, and the present invention, anyone skilled in the art, without departing from the invention of the shovel = Within the scope of the invention, the scope of the invention is defined by the scope of the appended claims. /, [Simple diagram of the diagram] Figure 1疋, % does not use the request-to-send (RTS) Split-To-Send (CTS) signal half-duplex wireless network diagram. 2 is a schematic diagram showing a conventional hyperframe. FIG. 3 is a schematic diagram showing a schematic diagram of a wireless network system according to an exemplary embodiment of the present invention. FIG. 4 is a schematic diagram showing a communication layer according to an exemplary embodiment of the present invention. FIG. 5 is a conceptual diagram showing a hyperframe according to an exemplary embodiment of the present invention. 25 200803254 - A r -
圖6是根據本發明範例實施例繪示請求頻寬配置的封 包的概念示意圖。 圖7是根據本發明範例實施例繪示無線網路協調者的 方塊圖。 圖8是根據本發明範例實施例繪示工作站的方塊圖。 圖9疋根據本發明乾例實施例繪不無線網路協调者的 運作的流程圖。 、圖1Q是根據本發明範例實施例繪示工作站的 减程圖。 迷作的 【主要元件符號說明】 110 :發送工作站 111 : RTS 訊號 112 :訊框 120 :接收工作站 121:CTS 訊號 122 :確認訊號 200 :超訊框 210 :信標週期 220 :競爭存取週期 230 :通道時間配置週期 231 ··管理通道時間配置 232:通道時間配置 31〇 :無線網路協調者 26 200803254 321、322、323、324 :無線網路工作站 400 通訊層 410 上層 420 媒體存取控制層 430 實體層 431 基頻層 432 射頻層 440 通道層 510 超訊框 521、522、523、524 :非保留通道時間區塊 531、532 :保留通道時間區塊 600 :頻寬配置請求封包 610 :識別符欄位 620 :大小欄位 630 :頻寬配置請求項欄位 631、632、633 ··頻寬配置請求項攔位 651 :目的地識別符欄位 652 :串流請求識別符欄位 653 :串流索引欄位 6 5 4 ·區塊數搁位 655 :時間區塊持續期間欄位 656 :最小排程週期欄位 657 :優先權攔位 700 :無線網路協調器 27 200803254 710 ··中央處理單元 720 :記憶體 730:匯流排 740 :媒體存取控制單元 750 ··頻寬管理單元 760 : PHY 單元 • 761 :基頻處理器 762 : RF單元 • 770 ··天線 800 :工作站 810 : CPU 820 :記憶體 830 :匯流排 840 : MAC 單元 850 :接收靈敏度檢查單元 860 :判斷單元 φ 870:PHY 單元 871 :基頻處理器 872:RF單元 880 :天線 S910、S920、S930、S940 :步驟 S1010、S1020、S1030、S1040、S1050、S1060、S1070、 S1080 :步驟 28FIG. 6 is a conceptual diagram illustrating a packet requesting a bandwidth configuration according to an exemplary embodiment of the present invention. Figure 7 is a block diagram showing a wireless network coordinator in accordance with an exemplary embodiment of the present invention. FIG. 8 is a block diagram showing a workstation in accordance with an exemplary embodiment of the present invention. Figure 9 is a flow chart depicting the operation of a wireless network coordinator in accordance with an exemplary embodiment of the present invention. FIG. 1Q is a diagram showing a subtraction of a workstation according to an exemplary embodiment of the present invention. [Main component symbol description] 110: Transmitting station 111: RTS signal 112: frame 120: receiving station 121: CTS signal 122: confirmation signal 200: hyperframe 210: beacon period 220: contention access period 230: Channel Time Configuration Period 231 ··Management Channel Time Configuration 232: Channel Time Configuration 31〇: Wireless Network Coordinator 26 200803254 321, 322, 323, 324: Wireless Network Workstation 400 Communication Layer 410 Upper Layer 420 Media Access Control Layer 430 Physical layer 431 baseband layer 432 radio frequency layer 440 channel layer 510 hyperframe 521, 522, 523, 524: non-reserved channel time block 531, 532: reserved channel time block 600: bandwidth configuration request packet 610: identifier Field 620: Size field 630: Bandwidth configuration request field 631, 632, 633 · Bandwidth configuration request block 651: Destination identifier field 652: Streaming request identifier field 653: String Flow Index Field 6 5 4 · Block Number Placement 655: Time Block Duration Period Field 656: Minimum Schedule Period Field 657: Priority Block 700: Wireless Network Coordinator 27 200803254 710 · Central Processing Element 720: Memory 730: Bus 740: Media Access Control Unit 750 • Bandwidth Management Unit 760: PHY Unit • 761: Baseband Processor 762: RF Unit • 770 • Antenna 800: Workstation 810: CPU 820 Memory 830: Bus 840: MAC unit 850: Reception sensitivity check unit 860: Judgment unit φ 870: PHY unit 871: Base frequency processor 872: RF unit 880: Antennas S910, S920, S930, S940: Step S1010, S1020, S1030, S1040, S1050, S1060, S1070, S1080: Step 28
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US7593422B2 (en) | 2002-01-03 | 2009-09-22 | Freescale Semiconductor, Inc. | Method of operating a media access controller having pseudo-static guaranteed time slots |
US6980541B2 (en) | 2002-01-03 | 2005-12-27 | Freescale Semiconductor, Inc. | Media access controller having pseudo-static guaranteed time slots |
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