TW529264B - Intelligent Bluetooth inquiry procedure - Google Patents

Abstract

A method of providing useful connection information to an inquiring node, about neighboring nodes and the services and device types they can access, in an ad-hoc communication system. The method provides for special or modified access codes that first, informs neighboring nodes of the service or device type the inquiring node wishes to receive information about, and secondly, forces the neighboring node that responds to provide useful connection information, through a variety of methods, in a variety of means.

Description

V. Description of the invention (Background of the invention, the present invention is generally related to the network structure. It is used to provide network nodes related to the network. In particular, the present invention is information about other nodes. The traditional network protocol is based on the network structure in the fixed network, which usually does not have the characteristics of ^^ and 。. Fixes and removes the nodes, but usually does not change s to increase the reason in the fixed network. The disadvantage is that it cannot be easily installed. = The power increase of the path (or system load) transmitted by the two jumpers "Due to the explanation of the data traffic overtime, the surrounding nodes may experience increased transmission :: 12 due to -nodes 増 -4 = :: V contention network It is dynamic.-The special network is formed by the joint participation of the network materials-the network began to take shape. Since the special road: r is that it operates in the form of a king machine and a router at the same time, the special network :::: fixed The internal structure required by the network. Therefore, the special network protocol is based on the assumption that a point may not always be located in the same physical location. • Bluetooth—a typical special network technology. Bluetooth is a type of voice and data Open description of wireless communication. It is based on a Distance, global radio link, and provide a small ad hoc group of mechanical devices that form a connected device without the need for a fixed network structure such as printers, PDAs, desktop computers, fax machines, keyboards, Joystick, phone, or (in fact) any digital device. Bluetooth operates in the unlicensed 2.4 GHz Industrial_Scientific_Medical (ISM) band. The first blueprint depicts a Bluetooth piconet. A piconet is a collection of digital devices connected to any of the above using special bud technology. A piconet is the most -4-This paper size is applicable to China National Standard (CNS) A4 specifications (210 × 297 mm) 529264 A7 B7 V. The description of the invention is formed by two connected devices, which are referred to herein as Bluetooth devices ... A piconet can include up to several Bluetooth devices. Each piconet, such as a piconet, has-a main Bluetooth unit and-or more Multiple slave Bluetooth units. Bluetooth unit 101 in the picture is-master unit 'and unit 102 is a Bluetooth slave unit. Figure 2 depicts-a larger piconet, including-a master unit and several slave units. According to Bluetooth technology, one A slave unit can only be directly connected to a master unit. Figure 2 depicts a piconet with a master unit arranged in a star network and a plurality of slave units 202-208. If the slave unit 202 wants to connect to the slave unit 206, the slave unit 202 must communicate the information about its hope to the master unit 201. The master unit 201 will then transmit this information to the slave unit 206. Figure 3 depicts a typical scattering network 300. The scattering network is formed by several independent and non-synchronized piconets. The piconet i in FIG. 3 includes a master node 303 and slave nodes 30b, 302, and 300; the piconet 4 includes a master node 305 and The slave nodes 304, 306, 307, and 308; and the piconet 5 includes a master node 309 and slave nodes 308 and 31. To implement a scattering network, you must use more than one piconet node. Such nodes are referred to as forward nodes in this paper. For example, if node 301 wants to connect to node 310, then nodes 304 and 308 may pass forward information between two piconets, especially between nodes 301 and 310, as forward nodes. For example, node 301 sends information to the master node of piconet 1, that is, node 303 ° master node 303 sends this information to the front node 304. The W node 304 then forwards this information to the master node 305, which in turn sends this information to the front node 308. Forwarding node 308 Forwarding this information to the master node -5-This paper size is suitable for financial ® Standard (CNS) A Vision Grid x 297 mm)

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k 529264 A7 B7 5. Invention description (3) 309, which transmits this information to the destination node 3 1 0. A Bluetooth unit can be a slave unit of a multiple pico network at the same time, but it can only be a master unit in a pico network. In addition, a Bluetooth unit as a master unit in a pico network can participate in other pico networks as a slave unit. A Bluetooth unit can only send and receive data in one piconet at a time, so participating in multiple piconet networks requires a time-division and multi-tasking method. Each Bluetooth unit has a globally unique 48-bit IEEE 802 address. This address is assigned when the Bluetooth unit is manufactured. It is called the Bluetooth Device Address (BD-ADDR) and will never change. In addition, the main unit of a piconet assigns a regional active part address (AM_ADDR) to each active part of this piconet. Dynamically assign and unassign this AM-ADDR, which is only three bits long, and is only found in a single piconet. The master unit uses this AM_ADDR when interrogating a slave unit in the piconet. However, when the slave unit is triggered by a packet addressed to the master unit addressed by the slave unit AM_ADDR, when transmitting a packet to the master unit, it includes AM-ADDR (AM-ADDR of the non-master unit) which is itself located in the packet header. Figure 4 depicts a Bluetooth packet. A traditional Bluetooth packet is composed of an access code 4 10, a header 420, and a payload 430. The header 420 includes AM-ADDR and several subsequent control parameters, such as a bit indicating the acknowledgement signal of a previous packet or a retransmission request at the time of implementation, and a header error detection (HEC). The access code of the packet can be of the following three types: a channel access code (CAC), a device access code (DAC) or an interrogation access code (IAC). Channel access code identifies a channel for a particular piconet, that is, the channel access code essentially identifies the piconet. Causes all packets to be transmitted at the same frequency -6-This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 529264 A7--B7 V. Description of the invention (4) Piconet with return access code The on-road exchange ^ channel access code is derived from the BD-ADDR of the pico network and the main unit. The device code is derived from a BD-ADDR in a special Bluetooth unit. The device access code is used for special signal programs, such as the PAGE program described below. There are two types of interrogation access codes: General Interrogation Access Code (GIAC) and Dedicated Interrogation Access Code (DIAC). Send a General Interrogation Access Code (GIAC) to find any Bluetooth unit in the vicinity. The transmission of the special inquiry access code (DIAC) is only used to discover specific types of Bluetooth units. Each individual dedicated inquiry access code is unique to different types of Bluetooth units. Both general access code and special access code are used in the INQUIRY process. Since ad hoc networks are dynamic, ad hoc network technologies often have a proximity discovery feature. Zheng Jin's discovery feature allows a Bluetooth unit to discover any Bluetooth unit that can be connected to the first monitor bud unit, and thus forms a special network that can be connected. The proximity discovery procedure in the Bluetooth is the inquiry procedure. Once a Bluetooth unit recognizes a neighboring Bluetooth unit 'a Bluetooth unit can be connected to a neighboring Bluetooth unit using the PAGE program. Figure 5 depicts signals for performing proximity discovery and connection establishment between two Bluetooth units. Please note that there are two headings "Information" in Figure 5. The purpose is to indicate the relevant sequence of transmission. A Bluetooth unit (such as a Bluetooth unit 1 wishing to discover a nearby Bluetooth unit 1) broadcasts an INQUIRY message. The Bluetooth unit that sends out an inquiry message is called an inquiry Bluetooth unit (IBTU) ^ Then the Bluetooth unit waits for and listens to the inquiry response (INQUIRY RESPONSE) message. An inquiry message consists of an inquiry access code (ie, GIAC or DIAC) ) Composition. This inquiry will be transmitted again and again according to the clearly specified time limit and frequency sequence. This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm)

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529264 A7 B7 V. Description of the invention (5) When a neighboring Bluetooth unit (such as the Bluetooth unit 2) receives a query message, the Bluetooth unit 2 responds to a query response message. In response to this inquiry, the neighboring Bluetooth unit is called a Responding Bluetooth Unit (RBTU). The challenge response message is a frequency jumper synchronization (FHS) packet. Messages 1 and 2 form a proximity discovery procedure, or an inquiry procedure. Figure 6 depicts a frequency jumper synchronous packet. All fields in the FHS packet, except for the AM_ADDR field (and undefined fields), indicate the characteristics or parameters of the Bluetooth unit transmitting the FHS packet. FHS packets are used for parity, lower address part (LAP), scan repeat (SR) 'scan period (SP), upper address part (UAP), non-significant address part (NAP), device Level, AM-ADDR, transmission unit clock internal value, and call scan mode. LAP, UAP and NAP together form the BD_ADDR of the transmission unit. The "device level" field indicates the level of the device responding to the Bluetooth unit. For example, a device may be a facsimile, telephone, printer, or refrigerator. The CLK field contains the current value in response to the internal clock of the Bluetooth unit. SR, SP and call scan mode are the control parameters used in the PAGE program. You can use the AM_ADDR field to allocate an AM_ADDR to a Bluetooth unit that changes to a pico network slave unit (that is, AM_ADDR is used only when the PAGE program uses FHS packets), and the undefined field is reserved for future use. Please refer to FIG. 5 again. When a Bluetooth unit wishes to establish a connection with a neighboring Bluetooth unit, the Bluetooth unit transmits a PAGE message. Messages 3 to 6 form a linking program, or a PAGE program. A PAGE message (message 3) is from the source -8-

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The paper size of the paper is applicable to the Chinese National Standard (CNS) A4 specification (210X 297 mm) 529264 A7 ___ _B7 V. Description of the invention (6) It is composed of the device access code (DAC) of the BD-ADDR that has called the Bluetooth unit . A Bluetooth unit that receives the PAGE information of its unique DAC, such as Bluetooth Unit 2, responds with an identical packet, that is, a packet containing only the DAC (Message 4) of the called Bluetooth unit (Bluegrass Unit 2). Then call the Bluetooth unit (ie Bluetooth unit 1) to respond to an FHS packet (message 5), which contains the BD-ADDR of the called Bluetooth unit (Bluetooth unit 1) and the call to the Bluetooth unit (Bluetooth unit 1) Shao clock current value, AM-ADDR assigned to the called Bluetooth unit (Bluetooth unit 2), and other parameters. Then, the Bluetooth unit (Bluetooth Unit 2) has been called in response to its DAC (Message 6) to establish a connection between the two Bluetooth units. If the calling Bluetooth unit is already the master unit of the piconet, then the called Bluetooth unit is added to this piconet as a new slave unit. Otherwise, the two Bluetooth units will just form a new piconet with the calling Bluetooth unit as the main unit. Even though the existing Bluetooth specifications have stated that they can be used to build pico networks and mechanical devices that form scattering networks, they do not specify the criteria for creating special scattering networks. The INQUIRY and PAGE procedures have been clearly stated, but there are no rules or standards for establishing such procedures. For example, when a neighboring unit is found, it is impossible to know the objects that can be connected to form a proper piconet. As a result, piconets are formed approximately randomly, often leading to distances from ideal piconet and scatternet structures. Providing information on the types of services and devices available will benefit the piconet and scatternet formation processes. In addition, since it is a very time-consuming task to set up a plurality of nodes to expose this type of information (that is, to perform an inquiry and PAGE procedure with each node in the plurality of nodes). Applicable to China National Standard (CNS) A4 specification (210 X 297 public love) 529264 A7 __ B7 _ Li-Invention Note (7) Provide information about available services and the availability of pears before the connection. Decide on connected nodes. SUMMARY OF THE INVENTION According to an exemplary embodiment of the present invention, before establishing a connection between a node and a network, it is provided to inform a network node < method and device of available services and / or device types in the network. More specifically, the response is a message for discovering neighboring nodes. The neighboring node responds with a message indicating the types of services and / or devices in the network of the neighboring nodes. An exemplary embodiment of the present invention has a method for selectively establishing a communication link between an interfering budding unit and one or more neighboring bluetooth units. This method begins by transmitting an inquiry Bluetooth unit containing an inquiry message with an inquiry access code. The query access code indicates a request to ask the Bluetooth unit 'to determine whether there is any service or device that can be accessed through the neighboring Bluetooth unit. If the nearby Bluetooth unit has received the inquiry from the Bluetooth unit, the nearby Bluetooth unit sends an inquiry response message to the inquiry Bluetooth unit, which contains the requested accessible device or service information, and can be used at the nearby Bluetooth unit. Other useful information to make a connection with the Bluetooth unit. Adjacent Bluetooth units responding in this way are known as responding Bluetooth units. If the responding monitor unit connects (through its own piconet, or through its own piconet with other piconets) to the desired Bluetooth unit, the inquiring monitor unit can choose to respond to the response The Bluetooth unit is either connected to another responding Bluetooth unit or connected to several responding Bluetooth units, each of which has access to the desired service or device type. Then ask the Bluetooth unit to use the information obtained from the inquiry information to generate a call letter -10-This paper size applies the Chinese National Standard (CNS) Α ^^ · (21〇χ 泪 公 爱) 529264 A7 ----- 5. Description of the invention (8) The information is given to the responding Bluetooth unit. The responding Bluetooth unit responds to the inquiring Bluetooth unit by transmitting a message containing a DAC of the responding Bluetooth unit. According to the institute's response information, the Bluetooth unit was asked to send an F H S packet with selective connection information to connect the responding Bluetooth unit. The responding Bluetooth unit will then send a DAC message to the querying Bluetooth unit to form a connection. According to an embodiment of the present invention, a method for providing connection information in a special network is described, which includes the following steps: a query node broadcasts a query message to neighboring nodes, and the query information requests about accessible nodes <; Connection information. The inquiring node receives a response from a neighboring node, and this response should contain information about the connection between the responding node and a node accessible to the neighboring node. Finally, it is decided whether to establish a network with responding neighboring nodes and using the connection information in the reply. "A brief description of the drawings The following detailed description and drawings will help to understand the purpose and advantages of the present invention: Figure 1 depicts a Bluetooth piconet; Figure 2 depicts a larger piconet, which contains a main Unit and several slave units; 'Figure 3 depicts a typical teaching network; Figure 4 depicts a query (IisfQUIRY) information packet; Figure 5 depicts signals for performing proximity discovery and connection establishment between two Bluetooth units; Figure Describes an INQUIRY RESPONSE information packet; Figures 7 and 10 describe a two-node-11 as described in the first embodiment of the present invention-this paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm)

529264 A7 B7 V. Description of the invention (9 signals for establishing a selective connection; Figure depicts the bit configuration of the redefined field in the Q-response message packet; Figure 9 depicts the Example of bit correspondence of available bits; FIG. 11 illustrates an example of a list of available bits in a redefined field in a challenge response packet; FIG. 2 14 15, 16, 18, and 19 describe a second embodiment of the present invention. Signal used to establish a selective connection between two nodes; Figure 13 depicts a query self-packet modified with a first query access code; 'Figure 17 depicts an extended query response message' its representation-for extended query response In the extended part of the message, the bit configuration of the redefining field; Figure 20 depicts the extended inquiry response message, which represents-used in the first (general) and second (extended) part of the extended inquiry response message. Bit allocation in the field; Figures 21, 23, 24, 25, 26, and 27 describe the signals used to establish a selective connection between two nodes as the third example of the present invention; The query information for the second query access code modification t1 * 〇 ~ Figures 28, 30, 31, 32, 33, and 34 describe the μ example of the present invention for establishing a selective connection between two nodes. -Take the third query access code to modify the package; 4 L 息 义 封 封 -12-

_ Installation line 529264 V. Description of the invention (10) Figures 35, 37, 38, 39, 40 and 41 describe the letter for establishing a selective connection between two nodes as the fifth embodiment of the present invention, Figure 3 6 Description ~ ^ m Inquire the access code modification number with 24; The inquiry information cover Figure 42 describes several pico networks Pichi Ichiro eats ^ It shows the device from a Bluetooth unit to a ^ special type device The total number of jumpers is shown in Figure 43. Figure 43 describes: an example of the response information of a jumper with redefinition fields; Figure 44 depicts an extended rabbit pE | # I 彳 甲 洵 问 反应 # 息 内Example of embedding jumper count information; FIG. 45 depicts an example of embedding human jumper count information in the first and extended query response information; FIG. 46 depicts a method for establishing a choice between two nodes according to the sixth embodiment of the present invention. Signal of a sexual connection; FIG. 47 depicts an inquiry message packet modified with a fifth inquiry access code; FIG. 48 depicts a first example of embedding jumper count information in an inquiry response message; FIG. 49 depicts an extension Jumper meter embedded in inquiry response message A second example of information; Figures 5 〇 A and 5 〇 B describe various types and definitions of query access codes as in Table 3 and examples of query access codes; Figure 51 illustrates an arrangement that can be arranged to implement the present invention. Block diagram; and -13-This paper size applies Chinese National Standard (CNS) A4 specification (210X 297 mm) binding line 529264 V. Description of the invention (11; 52 describes an example setting of a device, in which the map can be implemented The arrangement of 51. The invention is described in detail. The material is the material. The material is more specifically, the invention is aimed at obtaining information about the available devices and / or services in the special network. The content is to explain that a node transmits a related service. Or the type of device, the requirements of the information. The fact is that in general special network technology, especially the -node system in the monitor is related to-physical objects, such as: a passthrough machine, a brain's scanner, car audio, etc. Etc. The above physical objects are used in this article: device. The present invention provides information about the device to the query node. In addition, according to the present invention, # 问 蓝芽 （BLU㈣0TH） units can also request (or be granted) relevant " service,, Since the service is not a physical object or technology, it is not a "node". However, in order to access a service, ask the Bluetooth unit to access a node that provides services or provides services for a link. (Such as) a node of another node. Therefore, for the purpose of the present invention, although the technical difference is equal to a "node" and "service", since the service can only be accessed through one node, it should be understood that a connection about the service The information request is the same as the request information provided by the node for the service. Figure 7 depicts a signal for establishing a selective connection between two nodes as in the first embodiment of the present invention. According to the convention, when an inquiry Bluetooth unit broadcasts an inquiry Information, you cannot indicate the type of service or device you want to connect to. As shown in Fig. 7, the inquiry bluetooth unit broadcasts a question message (1) to all neighboring nodes. The numbers in parentheses indicate the order in which a particular message is transmitted. It indicates the time limit for inquiries and responses to the transmission of information broadcast or transmitted by the Bluetooth unit.

V order line-14-This paper size is in accordance with Chinese National Standard (CNS) A4 specification (210 X 297 mm) 529264 A7 B7 V. Description of the invention (12) Since no strong connection has been established between nodes, it is not between nodes Establishing a `` master unit, '' or `` slave unit, '' however, the transmission agreement is establishing an inquiry to the Bluetooth unit as the master unit, and a response Bluetooth unit as the slave unit.-Sending a query response message to receive a query The neighboring Bluetooth unit for information and response is called a responding Bluetooth unit (RBTU). According to the first embodiment of the present invention, a responding Bluetooth unit uses a device level field, an AM-ADDR field, an undefined field, and an inquiry Respond to the NAp field in the message to provide information about accessible services or device types. It should be understood that redefining any combination of sub-sets of these three fields will not change the principles of this embodiment, only reducing the number of redefining bits However, in this particular embodiment, the device level field must be one of the redefinition fields, which will be understood from the in-depth description of this embodiment. A query response bit configuration of the redefinition field of the information packet. The undefined field in FIG. 8 (as described in 0), the NAp field (2), the device level field (3), and the AM-ADDR field have been redefined传送 to send connection information about available services or device types. "Redefined, meaning that the bits allocated for the purpose indicated by the second name (such as AM-ADDR) are now available to transmit connection information. The bit does not send AM-ADDR data in response to the Bluetooth unit, but instead sends connection information. In the traditional inquiry response information, the device level field is divided into two parts. The first part contains the first 2 bits, and the latter part contains the next 22 bits. The first part is used to indicate the form in which the remainder of the device level field of one of the four independent forms will follow. Only one of the four forms is currently defined, which indicates the level to which the responding device belongs. • • 15 · ^ The paper size applies the Chinese National Standard (CNS) A4 specification (210 χ ------- 529264 A7 ------ B7) V. Description of the invention (13) ~ " 1 ~-Mu Li Within the defined form code, the three sub-levels divide the remaining U-level service levels (network, capture, audio, telephone, etc.), Wang Yao device levels (computer, telephone local area network, storage (Points, peripherals, etc.), and sub-service levels (for example, when the main sub-level is “Computer,”, a detailed description of the main device level such as a desktop workstation, laptop, palmtop PC, or PDA) Sub-level). Although it is best to use one of the undefined codes to indicate an inquiry response that contains connection information about the service or device type, the currently defined code can still be used. Two undefined bits can also be used to Send information about accessible service or device type. In addition, NAp field (06 bits) can also be used) to make the total number of available bits for transmitting information about accessible service or device type to 43. According to the present invention, Response to Bluetooth unit Use the first two bits of the device level field 7G 'to inform the inquiring Bluetooth unit about the response. The Bluetooth unit is returning an inquiry response message with a redefined field, which indicates the type or indication of the service or device to which the Bluetooth unit is connected. In itself, please refer to Table 1 describing the bit configuration of each field. -16-This paper size applies to China National Standard (CNS) A4 specifications (210X297 male I) 529264 A7 B7 · V. Description of invention (14) Table 1 Field Name Bit Configuration Device Level-Form (2)-Data 22 AM_ADDR 3 Undefined Field 2 NAP 16. Total: 43 According to the present invention, the 43 bits of the undefined field will contain the accessibility related to the use of one bit. Service or device type information. In Table 1, since the two bits of the device-level bit are not used to transmit connection information, the total is 43. Figure 9 depicts the use of a redefinition field within a challenge response message packet. Example bit mapping of bit. Each bit of bit mapping represents whether the Bluetooth unit can be accessed (such as setting a special bit to one) or inaccessible ( If a special bit is set to zero) A service or device-type. For example, bit 22 can represent the network access point service, and bit 30 can represent the application service. The above is only an example, so it does not represent a limitation In the present invention, bits are numbered from right to left. There are two columns in FIG. 9; the left column is called `` Available Bits, and the right column is called `` Ding ▲ ''. The available bits are bad, which means that there are 45 available bits gathered together in a continuous column. In any particular column, the two leftmost bits represent the bits of the undefined field. The next 16 bits are from the NAp domain. The next 24 bits are from the device level field. Final 2-17-This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm) 529264 A7 B7 V. Invention description (15 bits are from the AM_ADDR field. It should be acknowledged that it can handle services or devices For the future growth of the total number of types, in terms of describing the available services, an available bit should be allocated to represent the general service level "other services." Similarly, when describing the types of available devices, an available bit should be allocated to represent the general Device type level "other device types". In either case, the same available bits can be allocated for this purpose, or various available bits for services and device types. According to the present invention, the two first The bits (bits 4 and 5) are used to indicate a query response message containing connection information. The above two bits are shown in bold in Figure 9. The remaining 43 bits are available for transmitting connection information. In FIG. 9, as described in the first bit mapping, the first row indicates a printer service, a fax service, a scanner service, a network access point service, and an application service. An application service is a service that allows customers to pay for an application that exists on the computer of an application service provider. A network access point service is a service that allows a Bluetooth unit to access certain networks on an access point of the network Please note that the total number of five bits has been set to "1". A "1" indicates the type of service or device shown, that is, the connection information. The second line emphasizes the bit of the network access point service , The third line emphasizes the bits used for application services. As one bit corresponds to the Bluetooth unit, it is allowed to respond to the Bluetooth unit to inquire about the various services or devices in the high density form (only one bit per service or device type). The accessibility or non-accessibility of the type is valid. However, since one bit is allocated to each service or device type, the bit correspondence is limited by the number of available bits. In this case, about 43 -18 different sizes-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) binding

529264 A7 B7 V. Description of the invention (16) Set the maximum type or service to the inquiry Bluetooth unit. The service or device type that can be accessed is the service or device type that can access the response Bluetooth unit. Responding to the Bluetooth unit usually knows this information before inquiring about it. Information about accessible services and device types can be dispersed within a scatter network, which uses any existing protocol for publishing, discovery, and location of services, such as Bluetooth's Service Discovery Protocol (SDP) , Service Location Agreement (SLP, RFC2608), UPnP (Global Contact and Play) Simple Service Discovery Protocol (SSDP), or Extended Service Discovery Protocol, which is an extension of SDP based on UPnP. Accessible device types can be derived from service information or assigned through the same device. In order to reduce the network load, these mechanical devices may use a proxy or commission concept that contains service information on behalf of the service publisher. Other Bluetooth units may then request that the information from an appointment or an agent may transmit some transmission information that was triggered by an event. Please refer to FIG. 7 again. The inquiry response message (2) occurs after the inquiry message. Inquiring Bluetooth unit After receiving the inquiry response message from the neighboring Bluetooth unit, the inquiring Bluetooth unit determines the responding Bluetooth unit to which it is trying to connect (assuming that one or more of them have been responded to). It is assumed that the responding Bluetooth unit indicates that the desired device type or service is accessible (meaning that the responding Bluetooth unit itself or another reachable node via the same special network provides the desired service or device type ), The inquiring Bluetooth unit sends a PAGE message (3) to the specific responding Bluetooth unit in response to the inquiry response (inquiry RESPONSE) # information. The responding Bluetooth unit receives a page message sent to the responding Bluetooth unit by sending an identical message (4) (including its own DAC) to the querying Bluetooth unit to respond. Inquiry about Bluetooth unit by response Bluetooth -19-This paper size applies Chinese National Standard (CNS) A4 (210X297 mm) binding

Line 529264 5. Invention Description (17) The unit receives the response message and sends a message to the responding Bluetooth unit. The packet composed of packet (5) responds to the Bluetooth unit's use of transmitting another FHS message received by Fengya Phantom and responds to 'when asked about the Bluetooth unit :, from :: two, and formally connects the two Bluetooth units. "Yuancheng Formation Process" For the purpose of illustration, Fig. 7 refers to an inquiry to a Bluetooth unit, which responds to the Bluetooth unit earlier. Since Theory 1 __ θ connected to the return of Zhao Xu ~ /, the cylinder sounds right-ask the Bluetooth unit to try: "There should be no limitation on the number of early digits in the mouth", so the invention cannot be limited. ......, Example "Signal for establishing a selective connection between two nodes. 4i 2 = 0 u The description of the embodiment of the invention is similar to the description of FIG. 7, except that t +: information of service or device type is encoded in a list form, so that the service or device can be accessed before it is accessed. Such standardized service characteristics already exist and are used in conjunction with the above-mentioned service information distribution agreements. FIG. 11 illustrates an example of a list of available bits in a redefined field within a challenge response packet. In this list, specific contiguous bits are used to list accessible service or device types. In Figure η, eight bits are used by way of example only. Similarly, the first two bits in the device level field are set to "1" to indicate that the responding Bluetooth unit has connection information to the inquiring Bluetooth unit about a specific service or device type, that is, indicating the inquiry response information. Form code. Emphasizes the first and second nibbles in the first line (numbered from right to left, for illustration purposes only) to indicate the characteristics of the list of printer services (〇〇1 〇20-this leaflet The standard is applicable to China National Standard (CNS) A4 specification (21 × X 297 mm), and 529264 A7 B7. 5. Description of the invention (18) 1 〇01). The nibbles 3 and 4 indicate the characteristics of the fax service (丨〇〇〇〇0 1 0 0). Then describe the list of application services (〇〇 1 1〇⑽〇), the scanner service (00 11 〇〇〇1) and the network access point service (〇11 〇1 00 1). The second line only shows the characteristics of the network access point service (〇 丨 i 0 丨 〇〇 丨). In Figure 11, it is shown by way of example only, and the second line indicates that it is set in Banfengfeng 9 and 1 0 network access point service features. Please note that this is the first available Feature area space; if there is only one communication service feature, this service feature will be set here. The responding Bluetooth unit will set the service or device type feature to the most convenient location, not any particular location. If there are two services in total Features' will be set in nibbles 9 and 10, then nibbles 7 and 8. This is the case for the three lines in Figure 11. The example shown is just a list of ways in which this embodiment can be constructed . Although Figure 11 depicts eight bits that define service or device type characteristics, it will still recognize the use of other bit field sizes to define characteristics. The number of service or device type characteristics that can be transmitted immediately is limited to the number of available bits divided by the definition The number of bits for a feature. In this example, dividing 43 by 8 produces five features for each query response message, plus three extra bits. Since each feature uses 8 bits, there is only f There are 2 different features available to me. This yields 2 5 6 features. Since 11 features will be used to indicate "other services, or other" device types, only 254 features are used. Since the extra bits after the last item should be set to zero to distinguish it from the list item ', it is not possible to use all the zero characteristics or 00 ((00)). If the size of this feature is defined as 8 bits, 3 bits will be left. The unused position 7L can be a sufficient flag to indicate more available services or device types or -21-This paper size applies to China National Standard (CNS) A4 (21〇 X 297 public love)

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529264 A7 B7 V. Description of the invention Respond to the service or device type identified by the Bluetooth unit. In addition, for example, ^ indicates that the service will be notified only once. If the responding Bluetooth unit knows or links 2 ^ more print services, it will inform the consumer that only one service is connected. Please note that the use of bit mapping is important compared to the list of the first embodiment of the present invention. If a list format is used (254 different services or device types in this example), the hierarchy of possible service or device types will be much larger. Hierarchy when practical one-bit correspondence (this example has 42 ^ ^ service or device types, plus bits for "other services, or" other device types "). On the other hand, the advantage of the high-density bit-corresponding form is that it informs more of the services or device types in the same inquiry response message than the list form (only 5) (42 in this example). Fig. 12 illustrates a signal for establishing a selective connection between two nodes according to a second embodiment of the present invention. · 丄 According to the second embodiment of the present invention, the inquiry information includes information as the connection information searched by the inquiry Bluetooth unit. This is done by using a new access code located in the challenge message. The first query access code is referred to as two: access service general query access code (AS-GIAC). Figure 3 depicts a query message packet modified with a first query access code. The use of the first inquiry access code indicates that the inquiry Bluetooth unit is interested in the services accessible through the neighboring Bluetooth unit ', including the services provided by the neighboring Bluetooth unit itself. 2 According to the present invention, in accordance with receiving an inquiry message including an AS-GIAC, whether or not to connect to any service or device type, and regardless of the type of service or device, or the number of connections, the neighboring Bluetooth units are Will respond. As with the first embodiment of the present invention, there are various ways to respond to Bluetooth binding

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529264 A7 __B7 5. Description of the Invention (20) The unit sends useful connection information to the inquiry Bluetooth unit of the second embodiment. As mentioned earlier, it is primarily the use of redefining the area of inquiry response information. With the exception of the device-level domain, the same domain can be redefined in the same way. The first two bit indication special forms must be used here: the reason is that the AS-GIAC in the inquiry message is used to indicate that the returned inquiry response will provide useful connection information. Therefore, there will be 45 available bits instead of just 43 available bits. Please refer to Table 2. In Fig. 9, the query response is described in the second (2) message. Table 2 Field Name Bit Configuration Device Level-Form 2-Data 22 AM_ADDR 3 Undefined Field 2 NAP 16 Total: 45 As mentioned above, the connection information of Figures 8 and 8A can be sent to the inquiry using a list or a bit correspondence Response message. In FIG. 12, a one-bit correspondence is used to transmit a connection from the responding Bluetooth unit to a useful service in the redefinition field of an inquiry response message to the inquiry Bluetooth unit. Fig. 14 illustrates a signal for establishing a selective connection between two nodes according to a second embodiment of the present invention. -23-The national standard (CNS) M standard of this paper standard towel (21G x 297 public love) ---- 529264 A7 B7 V. Description of the invention (21) In Figure 14, the first inquiry in the inquiry information is stored. The code is AS-GIAC, and a list is used to transmit the connection information of the available services in the redefinition field of the inquiry response information from the responding Bluetooth unit to the inquiring Bluetooth unit. According to the second embodiment of the present invention, the method of transmitting the connection information with AS_GIAC using a list is the same as that described in the first embodiment. However, there will now be 45 available bits instead of 43 bits that can be used to transmit the connection complaint in the inquiry response message. Figures 15 and 16 depict signals for establishing a selective connection between two node gates, as is always the case with the present invention. In a second embodiment of the present invention, the second method of transmitting useful connection information from the responding Bluetooth unit to the inquiry Bluetooth unit is to use an extended inquiry port response message. The length of a general inquiry response message is only one time slot. _Extended ^ The length of the question response message is preferably an integer time slot, for example, a longer time slot, t The length of the extended question response is twice the length of the general question response. In the slot ~ (the first part of the extended inquiry response message), it contains the area of the general inquiry response message, and the second slot (the extended part of the extended inquiry response message) can be used to connect information . The use of an extended challenge response message is to provide a large number of available bits to provide available connection information. In Figure 15, a one-bit correspondence is used to encode the connection information in the extended part of the query response message. In Figure 16, a list is used to encode the connection information in the extended portion of the query response message. Figure 17 describes an extended inquiry response message, which is described for extended inquiry-24-This paper size applies Chinese National Standard (CNS) A4 specification (210X 297 mm) 529264 A7 B7 V. Description of the invention (22) Extension of response information The bit allocation of the redefinition field in the section. The entire extension of the challenge response message can be used to encode the data as a one-bit correspondence or as a list. The previous description of the use of the bits in Figs. 9 and 11 is also relevant to the embodiment of the present invention. As the total number of available bits has increased (144), the difference is the total number of service or device types that the Bluetooth unit can inform. Figures 18 and 19 describe signals for establishing a selective connection between two nodes as in the second embodiment of the present invention. In the second embodiment of the present invention, the third method for transmitting useful connection information from the responding Bluetooth unit to the inquiring Bluetooth unit is to use an extended inquiry response message and redefine the _ (_) part of the inquiry response message. Specific areas. Here we will redefine the same domain described in the first method for transmitting useful connections with an AS-GIAC. This third method, that is, the combination of the previous two methods, generates a large number of available bits to transmit useful connection information 0, and the bit correspondence in solid 18 is the first (general) and Connection information in the second (extended) section. In Figure 19, a list is used to encode the connection information in the first (general) and the first (extended) parts of the query response message. FIG. 20 describes an extended query response message, which describes the bit configuration of the redefined 锔 field in the first (general) and second (extended) part of the extended query response message. Please note that by redefining the ;; (-) part of the field of the query response message, a total of 189 bits can be used for -bit mapping or -listing. If you respond to the Bluetooth list, please refer to Figures 12, 14, 15, 16, 18 and 19 -25-This paper size applies to China National Standard (CNS) A4 (210X297 mm) 529264 A7

Bit 4 shows the desired service biting device category penalty county + Bluetooth unit itself or by its — V soil accessible U 'taste provided by the response point related to the reachable festival through the same special network • n, U service or the type of device you want), respond to the Bluetooth order: the same way starts the implementation of the process to the related description of Figure 7 Figures 1 23, 24, 25, 26 and 27 are described as the third embodiment of the present invention Use = Signal to establish a selective connection between two nodes. The third embodiment of the present invention is to change the inquiry information to include a second inquiry access code (IA ^ ~ which means not to ask the Bluetooth unit to receive relevant information). The type of accessible device. The first question access code is called the device's general inquiry access code (ATD-GIAC). Figure 22 depicts a modification of a second query access code Enquiry information packet. The use of the second question access code indicates that the inquiry Bluetooth unit is interested in a device that can be accessed by the adjacent Bluetooth unit (including the adjacent Bluetooth unit itself), and all can "listen" to the inquiry Bluetooth unit Neighboring Bluetooth units will respond ° Whether or not they are connected to any service or device type, and regardless of the type of service or device, or the number of connections, neighboring Bluetooth units will respond. In Figure 21, one bit corresponds It is used to encode the connection information in the query response information field. Therefore, 'connection information about the device type can also be shared with a query Bluetooth unit. All descriptions about the redefinition fields in a query response information The same feature, which uses an extended inquiry response message, or a group of two messages-26-This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 mm) 529264 A7 _ B7 i. Description of the invention (24) Then, according to the second embodiment of the present invention, bit-correspondence or list-encoded data can be used to provide useful connection information about the device type of the third embodiment of the present invention. In FIG. 23, a list Is used to encode the connection information in the query response information field. In FIG. 24, one bit correspondence is used to encode the connection information in the extended part of the query response information field. In FIG. 25, a list is used to encode the query Connection information in the extended part of the response information field. In Figure 26, the -bit correspondence is used to encode the extended part of the query response information field and the specific redefinition in the first (general) part of the query response information field. Field connection information. In Figure 27, a list is used to encode the extended query response information, the extension of the domain, and the specific renewal within the first (general) part of the query response information. Define the connection information for the domain. Please refer to Figures 21, 23, 24, 25, 26, and 27 again. If the response unit indicates that a desired service or device type is accessible (meaning ^: back to the second Bluetooth unit) Provide the desired service or the desired device type by itself or by another reachable ^ point through the same special network), the responding Bluetooth unit will start the PAGE procedure in the same way to the unit described in Figure 7 28, 30, 31, 32, 33, and 34 are described as the present invention. The fourth embodiment of the present invention is a signal for establishing a selective connection between two nodes. It is used to provide useful connection information to an inquiry Bluetooth. Unit 5 is based on < as far as possible, this paper size applies the Chinese National Standard (CNS) A4 specification (210X 297 mm) 529264 A7 B7 5. Invention Description (25) The fourth embodiment is to change the inquiry information to include a third inquiry Access Code (IAC), which describes the information about the type of service (that is, the sub-set of all service types) that the Bluetooth unit wishes to receive. The third inquiry access code is called a dedicated access service general inquiry access code (DAS-GIAC). Many DAS-DIAC's have been defined, and each DAS-DIAC is related to a specific type of January service (ie, a specific sub-set of all service types). Figure 29 depicts a challenge message packet modified with a third challenge access code. The use of a third set of query access codes indicates that the query Bluetooth unit is interested in the same set of services that can be accessed by responding to the Bluetooth unit, and all nearby Bluetooth query units that can "listen" to the query Bluetooth unit will respond . In this case, any nearby Bluetooth unit that can hear the inquiry will respond, but will only transmit useful connection information as directed by the DAS-GIAC for the specific service type. DAS-GIAC will instruct a secondary set of global groups that ask Bluetooth units for services of interest. DAS-GIAC using query information provides the possibility of reducing bit correspondence (for example, to make it always suitable for a non-extended query response message) or list size. Each DAS-GIAC requires specific types of accessible services (such as gateway services, printer services, or more common office services, etc.) that allow for more efficient coding of information about accessible services Use bits. In Fig. 28, a one-bit correspondence is used to encode connection information in a newly defined field of inquiry response information. In FIG. 30, a list is used to encode connection information in a specific redefinition field of the query response information. -28-

This paper size applies to China National Standard (CNS) A4 specifications (210X 297 male D

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Line 529264 A7 B7 V. Description of the invention (26) In Fig. 31, a one-bit correspondence is used to encode the connection information in the extended part of the inquiry response information. In Fig. 32, a list is used to encode the connection information in the extension of the query response message. In Figure 33, a one-bit correspondence is used to encode the connection information between the extended part of the extended inquiry response message and the specific (re) defined field in the first (general) part of the inquiry response message. In Figure 34, a list is used to encode the connection information between the extended part of the code extension inquiry response message and the first (general) part of the inquiry response message. As a result, connection information about a specific service type can be shared with an interrogating Bluetooth unit. All describing the same features regarding a redefined field within a query response message, which uses an extended query response message, or a combination of the two types of information. 'Then, according to a second embodiment of the invention, a one-bit correspondence or list encoding The data can be used to provide useful connection information about a specific service of the fourth embodiment of the present invention. Please refer to Figures 28, 30, 31, 32, 33, and 34 again. If the response Bluetooth unit means = a desired service or device type is accessible (meaning by the response monitoring unit itself or by another through the same The reachable node of the special network provides the desired service or the desired device type), and the responding Bluetooth unit will start to implement the page procedure to the unit described in Figure 7 in the same way. Figures 7, 38, 39, 40, and 4 describe signals for establishing a selective connection between two nodes as in the fifth embodiment of the present invention. -29-Ben I Zhang Fei New Account Title Family ^ Age Complex)-529264 A7 B7

5. Description of the invention (27 The method of the fifth embodiment of the present invention for providing useful connection information to an interrogating Bluetooth unit is to change the interrogation information to include a fourth interrogating access code (IAC), which explains interrogating the Bluetooth unit. I want to receive connection information about the device type (the second set of all service types). The fourth query access code is called the special access type (DATD_GlAq) of a device general query access code. Many DATD-GIAC's have been defined. DATD-GIAC is related to a specific device type or device type category.

Figure 36 describes a challenge message packet modified with a fourth challenge access code. "Heart, binding

Use the fourth set of query access codes to indicate that the Bluetooth unit is interested in responding to specific types of access to the Bluetooth unit (including the response unit itself), and all nearby Bluetooth queries that can “listen” to the query Bluetooth unit Will all respond. In this case, any neighbouring unit that can listen to the inquiry message will respond, but will only send useful connection information with a specific device type indicated by datd_giac. It will instruct a global group of devices that are interested in the Bluetooth unit. Times collection. : Use ::: Information DATD_GIAC provides a reduced bit correspondence (such as ^ Health ^ suitable for _ non-extended query response information) or list size ^: Each DATD_GIAC requires a specific type of accessible rmr side setting: 'Network Device, network access point, electricity; agree with Yu Dexuan's own documents, fax audio devices, home equipment, etc .: Bit :: When encoding information about the type of accessible device, it is more effective in Figure 35 -The bit mapping is used to encode the query response information: -30-

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Newly defined connection information in the realm. In Fig. 37, a list is used to encode connection information in a specific redefinition field of the challenge response message. In Fig. 38, a one-bit correspondence is used to encode the connection information in the extended portion of the query response message. In Figure 39, a list is used to encode the connection information in the extension of the challenge response message. In Fig. 40, a one-bit correspondence is the connection information for redefining the field in the extended part of the encoded extended inquiry response message and the first (general) part of the extended inquiry response message. In Fig. 41, a list is used to encode the connection information between the extended part of the extended inquiry response message and the first (general) part of the extended inquiry response message. Therefore, connection information about a specific device type can be shared with an interrogating Bluetooth unit. All describing the same features regarding a redefined field within a query response message, which uses an extended query response message, or a combination of the two types of information. 'Then, according to a second embodiment of the invention, a one-bit correspondence or list encoding The data can be used to provide useful connection information about a specific device type of the fifth embodiment of the present invention. Please refer to Figures 35, 37, 38, 39, 40, and 41 again if the response Bluetooth unit indicates that a desired service or device type is accessible (meaning by responding to the Bluetooth unit itself or by another through the same special The network can reach the node to provide the desired service or the desired device type), and the responding Bluetooth unit will start to implement the PAGE procedure in the same way to the relevant instructions in Figure 7-31-This paper standard applies Chinese national standards ( CNS) A4 size (210 X 297 mm)

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In the first five embodiments of the present invention, specific areas derived from question response information have been redefined. It should be understood that some or all of them can be used = field 'additionally' all four fields are used for exemplary purposes only: to limit the spirit and scope of the invention. In addition, in the first five embodiments of the present invention, another feature is added, which provides a detailed description of accessible services or device-type punishments when certain available bits are consumed. The representative responded that the Bluetooth unit could provide the jumper count information for each instruction storage service or device type to the inquiry Bluetooth unit. Each service or device type indicated as accessible should have a jumper count for the query response ^ jumper count in the message. Jumper count setting asks Bluetooth unit ^ Identifies the number of jumpers or connections, from responding to the Bluetooth unit to the closest device that provides a particular service or the closest device of a particular type. For example, the jumper count is 1, which means that the device providing related services or related types of devices are directly connected to the responding Bluetooth unit (but not connected to the inquiry Bluetooth unit). The jumper count is 0, indicating that the responding Bluetooth unit is the service provider itself or the device type itself. Figure 42 depicts several piconets, illustrating the total number of jumpers from a polling bud unit to a device that provides a particular type of service or a particular type of device. In Figure 42 there are two piconets participating together. M⑴ is the main unit of piconet 1, and M (2) is the main unit of piconet 2. Associated with M⑴ are the slaves s (1A), S (1B), and S (1C). The unitary slaves associated with M (2) are S (2A), S (2B), and S (2C). Please note that the slave s (1C) and S (2A) are the same Bluetooth unit. In this scattering network, the slave s (1A) has connection information about the slave S (1B) and the slave S (2B), which can be provided to respond to the Bluetooth single paper size applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 public reply)

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Line 529264 A7 _ B7 V. Description of the invention (30) bit (IBTU). Path 1 (the number of connections between S (1A) and S (1B)) generates a jumper count · 2. The jumper count is determined by the connection between S (1A) and M (1) and the connection between μ (1) and s (1B). Path 2 (the number of connections between S (1Α) and S (2Β)) yields a jumper count: 4. The jumper count is determined by the connection between S (1Α) and Μ⑴ and the connection between Μ⑴ and S (1C / 2A), S (1C / 2A) and Μ (2), and Μ (2) and S (2Β) . A jumper count can be represented by 1 or more bits. The number of bits used is an exchange between a significant bit usage and the level of detail. The number of bits used to indicate jumper count information determines the maximum jumper count that can be represented. For example, if a jumper count is represented by two bits, it can represent a jumper of 0.3. Right · Actual jumper count exceeds 3 jumpers' still indicates that the jumper count value is 3. Therefore, "3 or more jumpers" can be effectively expressed. The situation is particularly interesting when only one jumper count is represented by 1 bit. This is due in part to not using too much space within the query response message. But more importantly, you can set such simple jumper count parameters in response to the Bluetooth unit, without having to expand the actual jumper count in the network. However, this does not fully indicate the jumper count of a service provider node or a node of a specific device type. This depends on the characteristics of the protocols supported in the network, such as general routing protocols. But the information needs to set a simple 1-bit jumper counting parameter that can always be used in the Bluetooth unit. This is because a 1-bit jumper count parameter can only represent two different values: 0 jumper or "1 or more jumpers". Since the jumper 0 means "response to the Bluetooth unit itself", and "1 or more jumpers, it means" any node in the scattering network ", the response Bluetooth unit will always be distinguished by the two values. ≪ -33-This paper size is applicable to China National Standard (CNS) A4 specification (210X297mm) -------- 529264 A7 —____ B7 V. Description of the invention (31) Figure 43 depicts one to one An example of embedding jumper count information with a redefined field in the query response message. The jumper count information has been assigned to the N Ap field, which has 6 bits. It has also been assigned to the undefined field and device level field. Or AM-ADDR field. In any case, the total number of jumper counts will be limited by the number of bits available in a particular data field. However, it is also possible to assign jumper counts to any number of bits anywhere in the available data field. For example, the 3 bits of AM-ADDR, and the first 2 bits in the device level. The jumper count information has been assigned to the NAP field for illustrative purposes only, and is not meant to limit or limit the invention. When one Bit Should be used to encode an accessible service or device type, each pre-defined service or device type within a bit mapping may have 2 bits instead of the assigned 1 bit. One of the bits will indicate whether it is accessible Respond to Bluetooth units accessing a particular service or device type; another bit will indicate a "0" or "1 or more jumper," a jumper count (providing the first bit to indicate that a particular service or device type is available If the first bit indicates that a particular service or device type is not accessible, the jumper count bit will have no meaning). As for a list used to encode the types of accessible services or devices, each item will consist of a service (or device type) characteristic, followed by jumper count parameters for one or more bits. Figure 44 illustrates an example of embedding jumper count information in an extended inquiry response message. The bits in the 16 extended inquiry response messages have been counted here. -34-This paper size is applicable to the Chinese National Standard (CNS) A4 specification (21〇x 297 public love) 529264 A7 B7 V. Description of the invention (32 ): Beixun. The bit attributes are for exemplary purposes only, limiting the scope or spirit of the invention. Figure 45 depicts an example of embedding jumper brother information in the first and extended inquiry response messages. Here's the response-Bluetooth Unit Use-Chapter-and Extended Enquiry Response Messages in response to inquiries from Bluetooth units regarding service or device type. In this case, the 16-bit jumper count information has been allocated to the: part of the inquiry response message. In the same way, neither the number of bits nor the position is essential: the invention, the invention. Bits have also been located in the extended part of the query response, at any of the available 144-bit positions' and given a sufficient number to pass jumper count data. Figure 46 depicts the signal used to establish a selective connection between two nodes, as in the embodiment of the present invention. The sixth embodiment of the present invention for providing useful connection information to an inquiring Bluetooth unit is to change the inquiring information to include a fifth inquiring access code (IAC), which explains that the inquiring blue mandarin woman is visiting J "" now. Teeth hopes to connect to the type of service or device. The fifth query access code is called an accessibility based on a dedicated query access code (A-DIAC). Many A_DIAC 'each a diac system is defined with a specific type < Services or device types or device type categories are relevant and small in any way

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Figure 47 describes a query message modified with a fifth query access code. The fifth set of query access codes indicates that the Bluetooth unit is interested in being able to: Over'respond to various specific service or device types accessed by the Bluetooth unit. And there are only audible inquiry Bluetooth units, and the neighboring Bluetooth inquiry units that have access to special service type or device type on the right and the satellites will respond “early” and will therefore be called response Bluetooth • 35-

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5 Qing again refer to Figure 46, if one ..., two right one teeth early response-a 7 message containing an A-DiaC ', which implies that a desired service or device type is accessible, (, ^ 未By responding to the monitoring bud unit itself or by another through the same special network, I reach the node to provide the desired service or the desired device type. The responding I bud unit will start the PAGE process in the same way to the relevant month in Figure 7. It should be noted that it is not necessary to modify the inquiry response information in this embodiment. Another non-essential feature of the sixth embodiment of the present invention (ie, the A-DIAC embodiment) is that the Bluetooth unit may include a jumper count to The nearest device that provides the service type related to A-DIAC or the nearest device type related to A_DIA (: In order to include jumper count information, the query response information must be modified. The field or extension of the general query response information can be redefined Inquire the response information to complete the modification. You can redefine any of at least four different fields to transmit jumper count information: device level field, AM-ADDR field, undefined field, or NAP field. One of the fields. If an extended query response message is used, the first section is used to transmit the general query response message, and the jumper count information is set in the extended section. As described in the first five embodiments, only the The single bit representation of the jumper count is particularly interesting. This is partly because the required 2 rooms in the query response message are small, but more importantly, regardless of whether the jumper count is `` 〇, '' or `` 1 or more Jumpers ”will always be available for responding to Bluetooth units. In the sixth embodiment, since the response information for responding to an A-DIAC inquiry only needs to contain a single -36-this paper size applies the Chinese National Standard (CNS) A4 specification ( 210X 297 mm) 529264 A7 B7 V. Description of the invention (34) Jumper count parameter, so the total size of jumper count information can be very small. If the length of this jumper count parameter is only 丨 or 2 bits, you can Use the undefined field coded jumper count parameter in the query response message, and if the length of this jumper count parameter is 1 to 3 bits, you can use the AM_ADDR field coded jumper count parameter. The above two fields are used in the general inquiry response information, so the general information of the inquiry response information of the above two cases is kept untouched. FIG. 48 illustrates a first example of embedding jumper count information in an inquiry response information. In Figure 48, the jumper count information has been embedded in a device-level field. There are 24 available bits, but only 5 bits are assigned to encode the jumper count information. With the 5 bits allocated, the jumper Counting information can be expressed as 0 to 3 1 jumpers. As mentioned earlier, the number of bits and positioning (limited to the following areas: undefined, NAP, device level, and AM-ADDR) are completely changeable, and the The examples are not intended to limit the scope or spirit of the invention. Figure 49 depicts an example of a younger brother with embedded jumper count information in an extended inquiry response message. In Fig. 49, jumper count information has been embedded in an extended inquiry response message. This generates an extremely large number of available bits (144) that can be used to transmit jumper count information. The actual number of bits will be much lower than this, and the position in the extended query response information area is completely changeable. You can use DIAC and A-DIAC in a two-stage process: first, send 〆DIAC query information; however, if you do not receive a response (that is, there is no device that can be directly connected), send a query message with the corresponding A-DIAC to determine- 37-This paper size applies to China National Standard (CNS) A4 (210X297 mm)

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It is a device of the desired type. The responding Bluetooth unit then responds with a questioning response message, which may include the number of hops to the nearest device of the desired type. The jumper count is zero, which indicates that > /, I ώ should be in the early position as the type you want. Knowing> If the jumper count of Wang Si is included in the query response message, this two-stage process is not needed. Because the jumper count in the response (to the inquiry information containing an A-DIAC) will indicate whether the response Bluetooth unit is the correct one. Need to set the type (that is, jumper count 40), or whether you can access the required device type through the Bluetooth unit. In addition, there are other features which can be included at will. Features in all embodiments of the present invention. A responding Bluetooth unit that has gathered access to services or devices can automatically or through user interaction connect one of the Bluetooth units (using the pAGE program), indicating that the required service or device type is available. Access. For example, if the jumper count is included in the inquiry response message from the Bluetooth unit, it can be the response Bluetooth unit indicating the minimum jumper count to the node providing the service or the node of the required device type. If you ask the Bluetooth unit that you are interested in several different services or device types, you can choose to establish connections with some responding Bluetooth units to access all the required services (or device types). The above is just an example of a Bluetooth unit " T connection-response monitor unit ' or other Bluetooth unit that provides access to the desired service or specific device type. Therefore, the above examples are not intended to limit the scope and / or spirit of the present invention, as there are countless ways to query the Bluetooth unit for connection to other Bluetooth units. Figures 50A and 50B describe various types, definitions, and examples of query access codes as in Table 3; -38-This paper size applies to China National Standard (CNS) A4 (210 X 297 public love)

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529264 A7 __B7_ __ V. Description of the Invention (36) Figure 51 depicts a block diagram that can be arranged to implement the present invention. The Bluetooth configuration of FIG. 51 is described in two drawings. The first is the transceiver 130, which includes a processor 134, a transmitter 132, a receiver 133, and a duplexer 131 (please note that the component 131 can be alternately a duplexer, converter, circulator, magic T-type bus device, etc. Etc., all of the above allows rf energy to transmit one path, but not other paths at a specific time), antenna 135, waveguides 143A and 143B, and data path 144. The second type further describes the processor 134, which is composed of a memory 136, a floppy disk device 137, an I / O buffer 138, a data path 144, a microprocessor 139, a hard disk device 140, and a data bus 141. The hard disk device 140 and the floppy disk device 137 are optional items, depending on the unit including the transceiver 130. The Bluetooth operating system is a program contained in the memory 136. The Bluetooth operating system determines how the transceiver connects to other Bluetooth nodes. The microprocessor 1 3 9 executes the program steps contained in the memory 13 6 in a manner known in the art. The floppy disk device 137 and the hard disk device 140 are optional items. Although some of the above components will be required, they may not be shown in many Bluetooth arrangements. An input / output (I / O) buffer 138 transmits data to the transmitter 132 portion of the transceiver 130, and receives data from the receiver 133 portion of the transceiver 130. This step is performed through the data path 144. The output of the transmitter 132 is connected to the waveguide 143A, which is connected to the duplexer 131, and its output is connected to the antenna 135. The receiver 133 is connected through the waveguide 143B, which is also connected to the duplexer 131. The use of duplexers in this row is known in the art. As mentioned earlier, there are various circuits that provide a duplexer function. Duplexer-39-This paper size applies to Chinese National Standard (CNS) A4 specification (210X 297 mm) 529264 A7 ---__________ ^ B7_ V. Description of the invention (37) Allow RF energy to be transmitted from the transmitter 132 to the antenna 135 Without damaging the receiving device 133 (because it exceeds its input circuit load). Similarly, the duplexer ΐ3m allows the received RF signal to be transmitted to the receiver π 3 in the afternoon without any RF energy leaking from the transmitter to the receiver during the day. FIG. 52 illustrates an exemplary setting of a device that can implement the arrangement of FIG. 51. FIG. In Figure 52, a car body Jinsheng 541, an Internet access point 543, a refrigerator 542, a pDA 545, and a printer 544 are described in private. Although the method of the present invention has been described through the content of Bluetooth technology, it is still well-known and can be applied to the general wireless ad hoc network method. Of course, compared to ^ Monitor, although the method of including specific descriptions of information in response to the information is not other technologies, the concept of accessible information related to the type of device of the boxer was changed during the discovery process. Road technology. Qian Zhuan 凊 Understand that the above embodiments are only examples, and do not limit the bamboo shoots. In addition to the embodiments described above, the present invention may of course be implemented in a specific form without departing from the spirit of the present invention. Retaining the contents disclosed herein, other modifications such as the basic principles of the scope of patent application are originally within the spirit and scope of the present invention. People improved 40-This paper size applies Chinese National Standard (CNS) A4 (21〇297mm)

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Claims (1)

529264 A8 B8 C8 D8 6. Scope of Patent Application1. A method for providing connection information in a special network, including the following steps: Broadcasting a query message from an interrogating node to neighboring nodes, the interrogating message asking for access Node connection information; receiving a response from an inquiring node responding to a neighboring node, the response including connection information about the responding neighboring node and a node accessible to the neighboring node; and determining whether to use the connection information in the response It responds to connections from neighboring nodes. 2. The method according to item 1 of the scope of patent application, wherein the type of connection information included in the response from the neighboring nodes depends on the type of query message broadcast by the query node. 3. The method according to item 2 of the patent application, wherein the inquiry message type is indicated by a inquiry access code. 4. The method according to item 3 of the patent application, wherein the query access code type is an accessible service general query access code. 5. The method of claim 3, wherein the query access code type is an accessible type of a device haiku query access code. 6. The method of claim 3, wherein the type of the inquiry access code is a dedicated access service inquiry access code. 7. The method according to item 3 of the scope of patent application, wherein the query and η sub-code fetching types are exclusive accessible types of a device access code. 8. The method of claim 3, wherein the inquiry access code is a special inquiry access code that can access the substrate. ’土 -41-This paper is suitable for standard paper ® Standards (CNS) Α4 size (210 × 297 public love) --- ---- Hold 529264 A8 B8 C8 _______ D8 6. Scope of Patent Application — '9. If the method of patent application No. 1 item is used, the connection information is encoded as ~ bit mapping in the response. 10. The method according to item 1 of the patent application scope, wherein the connection information should be encoded as a list in the response. 11. The method according to item 1 of the scope of patent application, wherein the connection information in the response includes jumper count information. 12. As claimed in the method of patent scope item 1, the response contains connection information in multiple redefinition fields. 13. The method of claim 1 in which the response includes connection information for an extended response. 14. The method as claimed in item 1 of the patent scope, wherein the response includes connection information in multiple redefinition fields with an extended response. 15. The method of claim 12 or 14, wherein the plurality of redefined fields include an undefined field, an AM-ADDR field, a NAP field, or a device level field. 16. The method according to item 15 of the patent application, wherein the connection information includes jumper count information in one or more redefinition fields. 17. The method of claim 13 or 14, wherein the connection information includes jumper count information in the extended response. 18. The method of claiming item 8 of the patent, where the response contains jumper count information. 19_ The method of claim 18, wherein the jumper count information is included in one or more redefinition fields. 20. The method according to item 18 of the scope of patent application, wherein the jumper count information package -42-This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) Binding • Line 529264 ABCD 6. The scope of patent application is included in an extended response. 21. The method according to item 19 of the scope of patent application, wherein the redefinition field includes an undefined field, an AM_ADDR field, a NAP field, or a device level field. 22 · —A configuration for providing connection information in a special network, the configuration including: an interrogation node comprising: means for broadcasting an interrogation message, the interrogation message requiring connection information about an access code; for receiving A responding device; a neighboring node includes: a device for receiving the inquiry message; a device for broadcasting a response, the response containing connection information about the responding neighboring node and a node accessible to the responding neighboring node; and the inquiring node It further includes means for deciding whether to establish a connection to a responding neighboring node using the connection information in the response. 23. The configuration of item 22 of the application scope, which includes the type of connection information included in the response from the neighboring nodes, depends on the type of query message broadcast by the query node. 24. The configuration according to item 23 of the scope of patent application, wherein the inquiry message type is indicated by a inquiry access code. 25. The configuration according to item 24 of the scope of patent application, wherein the inquiry access code type is an accessible service general inquiry access code. 26. The configuration of item 24 in the scope of patent application, where the inquiry access code type -43-This paper size applies to China National Standard (CNS) A4 specification (210X297 mm) 529264 A8 Ask a device for the accessibility type of the access code. 27. The configuration according to item 24 of the scope of patent application, wherein the inquiry access code type is a dedicated accessible service inquiry access code. The configuration of item 24 in the scope of patent application, wherein the inquiry access code type is a dedicated accessible class of a device inquiry access code. Change the configuration as in item 24 of the patent application scope, wherein the inquiry access code type is a dedicated inquiry access code that can access the substrate. 30. The configuration of item 22 in the scope of patent application, wherein the connection information is coded as a bit correspondence in the response. 31. For the configuration of item 22 of the scope of patent application, the connection information should be encoded as a list in the response. 32. The configuration of item 22 in the scope of patent application, wherein the connection information in the response includes jumper count information. 33. The configuration of item 22 in the scope of the patent application, wherein the response contains connection information in multiple redefinition fields. 34. The configuration of item 22 in the scope of patent application, wherein the response includes _ connection information in an extended response. 35. The configuration of item 22 in the scope of the patent application, wherein the response includes connection information with an extended response in multiple redefinition fields. 36. The configuration according to item 33 or 35 of the scope of patent application, wherein the plurality of redefined fields include an undefined field, an AM_ADDR field, a NAP field, or a device level field. 37. The configuration of item 36 in the scope of patent application, wherein the connection information includes jumper count information in one or more redefinition fields. -44 · This paper size applies Chinese National Standard (CNS) A4 specification (210 X 297 public love) 529264 AB c D 々, patent application scope 38. For the configuration of the patent application scope item 34 or 35, where the connection information contains Jumper count information in this extended response. 39. For the configuration of item 29 in the scope of patent application, the response includes jumper count information. 40. The configuration of item 39 in the scope of patent application, wherein the jumper count information is included in one or more redefinition fields. 41. The configuration of item 39 in the scope of patent application, wherein the jumper count information is included in an extended response. 42. For the configuration of item 40 in the scope of patent application, where the redefinition fields include undefined fields, AM_ADDR field, NAP field or device level field 0 -45-This paper standard applies to China National Standard (CNS) A4 specifications (210 X (297 mm)