JP5192201B2 - Wireless communication system and method - Google Patents

Description

  This application claims the benefit of US Provisional Application No. 60 / 842,675, filed September 7, 2006, the entire contents of which are hereby incorporated by reference for any purpose. Incorporate.

  The present invention relates generally to a method and apparatus for a wireless communication system, and more particularly to a wireless communication system, a wireless communication method, and a wireless communication apparatus including a control node, an intermediate node, and a destination node.

  Wireless communication systems continue to expand due to the increasing number of wireless devices and the increasing demand for wireless services. In order to meet the growing demand, wireless providers have deployed a very large number of wireless transmitters. However, as an alternative, wireless providers also use relay-based systems.

  In a relay-based system, one node of a wireless system can communicate with another node in the wireless system using one or more intermediate nodes called relay nodes. In some systems, a relay node is referred to as a relay station, and such a combination of nodes and a connection between a source node and a destination node is referred to as a transmission line. Relay-based systems can be found in any type of wireless network.

  An example relay-based system is a multi-hop relay (MR) network. FIG. 1 is a diagram showing an example of a conventional MR network 100 based on the standard of the Institute of Electrical and Electronics Engineers (IEEE) 802.16 family.

  As shown in FIG. 1, MR network 100 includes one or more transmitters, such as a base station (BS) 110, one or more relay stations (RS) 120 (including RSs 120a, 120b, and 120c), and 1 One or more subscriber stations (SS) 130 (including SS 130w, 130x, 130y, and 130z) may be included.

  In an MR network, communication between a transmitting station (eg, BS 110) and a subscriber station (eg, SS 130w, SS 130x, SS 130y, SS 130z, etc.) is performed by one or more relay stations (eg, RS 120a, RS 120b, RS 120c, etc.). It can be realized using. For example, in the MR network 100, the RS 120a can receive data from the BS 110 and transmit the data to another relay station (eg, RS 120b). Alternatively, the RS 120a can receive data from a lower relay station (eg, RS 120b) and transmit the data to the BS 110. As another example, RS 120c may receive data from RS 120b and send the data to a supported subscriber station (eg, SS 130w). Alternatively, the RS 120c can receive data from a subscriber station (eg, SS 130w) and transmit the data to an upper relay station (eg, RS 120b).

  In some examples, such as the MR network 100, a scheduling algorithm can be used, which allows a subscriber station (eg, SS 130w, SS 130x, SS 130y, SS 130z, etc.) to be in the network (ie, a subscriber station within range). On the other hand, the initial entry can be competed only once for a communication network configured by causing the BS 110 to function. Once the initial entry for the network is won, an access slot is assigned by the BS 110. In another example, access slots can be dynamically allocated at each frame interval. In either case, the access slot can be expanded or contracted, but the access slot will remain assigned to a particular subscriber station, thereby allowing other subscriber stations to Use of the access slot can be eliminated.

  FIG. 2 is a diagram illustrating an example of a media access control (MAC) frame format based on the IEEE 802.16 family of standards using frequency division multiple access (OFDMA). As shown in FIG. 2, the transmission time can be divided into variable length subframes, ie, uplink (UL) subframe and downlink (DL) subframe. Although not shown in detail, the UL subframe may include a UL data burst including a ranging channel, a channel quality information channel (CQICH) and data.

  The DL subframe may include a preamble, a frame control header (FCH), a DL-MAP, a UL-MAP, and a DL data burst region. The preamble can be used to provide a reference for synchronization. For example, the preamble can be used to adjust timing offset, frequency offset, and power. The FCH can include frame control information for each connection including, for example, decoding information for the SS 130.

  DL-MAP messages and UL-MAP messages can be used to allocate respective channels for downlink and uplink communications. That is, the DL-MAP message can provide the access slot location directory in the current downlink subframe, and the UL-MAP message can access the access slot location directory in the current uplink subframe. Can be provided. For DL-MAP messages, this directory may be in the form of one or more DL-MAP information elements (MAP IEs). Each MAP IE in the DL-MAP message may include parameters for a single connection (ie, a connection with a single SS 130). These parameters can be used in the current subframe to identify where the data burst is located, the length of the data burst, the identity of a given recipient of the data burst, and one or more transmission parameters. .

  For example, each MAP IE uses a connection ID (CID) for identifying a destination device (for example, SS130w, SS130x, SS130y, SS130z, etc.) to which a data burst is directed, and uses a downlink interval in which downlink transmission is specified. Includes downlink interval usage code (DIUC) to indicate code, OFDMA symbol offset indicating the offset of the OFDMA symbol where the data burst starts, subchannel offset indicating the minimum index OFDMA subchannel for carrying the data burst, etc. be able to. Further, the MAP IE may include other parameters such as a boosting parameter, a parameter indicating an OFDMA symbol number, and a parameter indicating a subchannel number. As used in the following description, the conventional MAC header and MAP IE are referred to as connection switching control data.

  The data burst region can follow each of the DL-MAP and UL-MAP messages. Each data burst in the data burst area can be modulated and encoded according to the type of control of the corresponding connection switching control data. For example, referring to FIG. 3, MAP IE “w” provides control information for data burst “w”, MAP IE “x” provides control information for data burst “x”, and MAP IE “x” provides control information for data burst “x”. IE “y” may provide control information for data burst “y”, and MAP IE “z” may provide control information for data burst “z”.

  Referring back to FIG. 1, BS 110 can receive data bursts for SS 130w, SS 130x, SS 130y, and SS 130z, each of which is a subscriber device to RS 120c. The BS 110 can generate connection switching control data for each SS 130 and insert the connection switching control data into the DL MAP IE slot of the frame. The BS 110 can insert a data burst associated with each SS 130 into a data burst area corresponding to each connection switching control data. The BS 110 can transmit the frame to the first node along the transmission path, that is, the RS 120a. The RS 120a can receive the data and process each connection switching control data to determine which data is for the RS 120a subscriber device. If none of the data is intended for an RS 120a subscriber device, the RS 120a can transfer it to the next RS 120 along the transmission path. In this example, none of the data is directed to the RS 120a subscriber device, and the RS 120a can transmit the data to the RS 120b.

  Similarly, the RS 120b can receive the data and process each connection switching control data to determine which data is for the RS 120b subscriber device. If none of the data is intended for RS120b subscriber equipment, RS120b can also transfer to the next RS120 along the transmission path, that is, RS120c. The RS 120c can receive the data and process each connection switching control data to determine which data is for the RS 120c subscriber device. In this example, SS130w, SS130x, SS130y and SS130z are RS120c subscriber devices, which process the connection switching control data and send the appropriate data according to the transmission parameters stored in the MAP IE. It can transmit to each SS130.

  In the MR network 100, each RS 120 along the transmission path transmits all connection switching control data (for example, MAC header and MAP IE) of the frame until individual control data and data associated with the control data arrive at the destination. ) Will be processed. Therefore, for example, each of the connection switching control data in FIG. 1 is processed three times before the data arrives at the destination. This will result in considerable use of system resources and corresponding transmission latency.

  In one aspect of the present invention, a method for processing wireless data in a wireless communication network including a plurality of intermediate nodes and a plurality of destination devices is provided. The method includes determining at least one transmission path for each of a plurality of intermediate nodes. The at least one transmission line includes data associated with all intermediate nodes along the at least one transmission line. The method also includes determining a transmission path identifier that is a destination node identifier for each of the at least one transmission path, and transmitting transmission data to at least one destination apparatus of the plurality of destination apparatuses. Includes steps. The transmission data is transmitted based on at least one transmission path identifier.

  In another aspect of the present invention, a wireless communication station for wireless communication in a wireless communication network including a plurality of intermediate nodes and a plurality of destination devices is provided. The wireless communication station comprises at least one memory for storing data and instructions and at least one processor configured to access the memory. The at least one processor is configured to determine at least one transmission path for each of the plurality of intermediate nodes when executing the instructions. The information of the at least one transmission path includes data associated with all intermediate nodes along the at least one transmission path. In addition, when executing the instruction, the at least one processor determines a transmission path identifier that is a destination node identifier for each of the at least one transmission path, and transmits transmission data to at least one of the plurality of destination devices. It is configured to transmit to one destination device. The transmission data is transmitted based on at least one transmission path identifier.

  In another aspect of the present invention, a method for performing data processing at an intermediate node is provided. The method includes receiving transmission data by a receiving unit. The transmission data includes at least one first control data and at least one second control data. Each of the at least one first control data includes a connection identifier, each of the at least one second control data includes a transmission path identifier, and the transmission path identifier is a destination node identifier. The method further includes processing the transmission data by the receiving unit and communicating with the receiving unit by the buffer unit to buffer the processed data. The method further includes the steps of communicating with the buffer unit by the transmitting unit to receive the buffered data from the buffer unit and performing pre-transmission processing of the buffered data. The method further includes communicating by the control unit with the receiving unit, the buffer unit and the transmitting unit to set one or more receiving parameters associated with the receiving unit.

  In another aspect of the present invention, an intermediate node for performing data processing in a wireless communication network is provided. The intermediate node has a receiving unit operable to receive and process transmission data. The transmission data includes at least one first control data and at least one second control data. Each of the at least one first control data includes a connection identifier, each of the at least one second control data includes a transmission path identifier, and the transmission path identifier is a destination node identifier. The intermediate node further includes a buffer unit configured to communicate with the receiving unit and buffer processing data, and a transmitting unit configured to communicate with the buffer unit and receive buffered data from the buffer unit. And have. In addition, the intermediate node has a control unit that operates to communicate with the receiving unit, the buffer unit, and the transmitting unit to set one or more receiving parameters associated with the receiving unit.

  In another aspect of the present invention, a method for processing data in a wireless communication network including a plurality of intermediate nodes and a plurality of destination devices is provided. The method includes receiving data for transmission to at least one destination device of the plurality of destination devices, and determining a transmission path for the destination intermediate node. At least one destination device communicates with the destination intermediate node. The method further includes assigning to the data first control data that includes one or more parameters associated with the at least one destination device. The method also includes assigning second control data including a transmission path identifier to the data. The transmission path identifier is a destination node identifier. The method further includes transmitting at least one transmission frame including the data along the transmission path.

  In another aspect of the present invention, a wireless communication station for wireless communication in a wireless communication network including a plurality of intermediate nodes and a plurality of destination devices is provided. The wireless communication station has at least one memory for storing data and instructions and at least one processor configured to access the memory. The at least one processor is configured to receive data for transmission to at least one destination device of the plurality of destination devices and determine a transmission path for the destination intermediate node when executing the instructions. At least one destination device communicates with the destination intermediate node. The at least one processor is further configured to assign first control data to the data including one or more parameters associated with the at least one destination device. Further, the at least one processor is configured to allocate second control data including the transmission path identifier to the data. The transmission path identifier is a destination node identifier. Further, the at least one processor is configured to transmit at least one transmission frame including the data along the transmission line.

  In another aspect of the invention, a method is provided for processing data by an intermediate node in a wireless communication network that includes a plurality of intermediate nodes and a plurality of destination devices. The method includes receiving data, the data including destination device data for at least one destination device of the plurality of destination devices, at least one first control data, and at least one second control. Data. Each of the at least one first control data includes a connection identifier, each of the at least one second control data includes a transmission path identifier, and the transmission path identifier is a destination node identifier. The method further includes evaluating a transmission path identifier in each of the at least one second control data and processing the data based on the transmission path identifier.

  In another aspect of the invention, an intermediate node in a wireless communication network is provided that includes a plurality of intermediate nodes and a plurality of destination devices. The intermediate node has at least one memory for storing data and instructions and at least one processor configured to access the memory. At least one processor is configured to receive data when executing the instructions. The data includes destination device data for at least one destination device among the plurality of destination devices, at least one first control data, and at least one second control data. Each of the at least one first control data includes a connection identifier, each of the at least one second control data includes a transmission path identifier, and the transmission path identifier is a destination node identifier. The at least one processor is further configured to evaluate a transmission path identifier in each of the at least one second control data and process the data based on the transmission path identifier.

  FIG. 4 is a block diagram illustrating an example of a tag switching network 400 corresponding to the disclosed embodiment. The tag switching network 400 can use one or more tags for routing data and / or communication. In one embodiment, tag switching network 400 may be based on the IEEE 802.16 family of standards. As shown in FIG. 4, in one embodiment, the tag switching network 400 includes one or more transmitters such as a base station (BS) 410, one or more relay stations (RS) including RSs 420a, 420b, and 420c. 420 and one or more subscriber stations (SS) 430 including SS 430w, 430x and 430y.

  BS 410 may be any type of communication device configured to transmit and / or receive data, and / or many of which communicate based on one or more wireless standards known in the art. To do. For example, the BS 410 communicates with one or more SS 430, RS 420, one or more other BSs 410 and / or other networks (not shown) using a communication protocol defined by the IEEE 802.16 family of standards. It can be constituted as follows. In some examples, BS 410 is also referred to as, for example, a Node B, a base station transmitter (BTS), an access point, and so on.

  As shown in FIG. 5A, BS 410 accesses and stores at least one central processing unit (CPU) 411 that executes computer program instructions, information and computer instructions to perform various processes and methods. One or more databases storing random access memory (RAM) 412 and read only memory (ROM) 413, memory (memory) 414 for storing data and information, tables, lists or other data structures One or more of these components may be included, such as 415, one or more I / O devices 416, one or more interfaces 417, and one or more antennas 418. Each of these components is well known in the art and will not be further described.

  Referring back to FIG. 4, in one embodiment, the BS 410 can be configured to generate and store one or more BS tag tables 440. The BS tag table 440 may include data associated with one or more nodes and / or one or more transmission paths in the tag switching network 400. For example, the BS tag table 440 may include information on one or more relay node identifiers, one or more transmission paths and / or one or more transmission path identifiers, and relationships between data. Further, the BS tag table 440 may include other parameters such as transmission parameters for one or more transmission paths, transmission parameters for one or more RSs 420, transmission parameters for one or more SSs 430, and the like.

  One or more relay node identifiers can be used to uniquely identify each node in the tag switching network 400. The one or more nodes may include, for example, a BS 410, one or more RSs 420, and / or one or more SSs 430. Each of the one or more transmission paths can include one or more RSs 420 from which data can be routed through the tag switching network 400, each transmission path being uniquely identified by a transmission path identifier. The transmission path identifier may be referred to as “tag” or “tag switching connection identifier”. In one embodiment, the one or more transmission paths are also known as “relay paths”. In some examples, the disclosed transmission method may be referred to as tunnel transmission and the tag switching connection identifier may be referred to as a tunnel CID.

  In one embodiment, the tag can serve as an index to the BS tag table 440. For example, the transmission path from BS 410 to RS 420a can include RS 420a, which can be identified by tag "1". The transmission path from BS 410 to RS 420b can include RS 420a and RS 420b, which can be identified by tag "2". The tag “3” can identify a transmission path from the BS 410 to the RS 420c including the RS 420a, RS 420b, and RS 420c. In some examples, the BS tag table 440 can be configured to uniquely identify one or more transmission paths to one or more RSs 420 in the tag switching network 400.

  Alternatively and / or additionally, the BS tag table 440 may identify relationships between one or more nodes in the tag switching network 400. For example, the BS tag table 440 can identify a lower and upper relationship between one or more nodes in the tag switching network 400. Further, the BS tag table 440 can be used to identify the RS 420 or BS 410 that functions for each SS 430 in the tag switching network 400. The functioning RS 420 or BS 410 can be a node, through which the SS 430 can transmit and / or receive data via the tag switching network 400. As shown in FIG. 4, RS 420c is an RS 420 that functions for SS 430w, SS 430x, and SS 430y. Accordingly, the BS tag table 440 may include data associated with SS 430w (ie, CID = w), SS 430x (ie, CID = x), and SS 430y (ie, CID = y).

  BS 410 can also be configured to generate one or more RS tag tables 450. The RS tag table 450 may include information associated with the BS 410, one or more RSs 420 and / or one or more SSs 430. For example, the RS tag table 450 may include one or more relay node identifiers, one or more transmission paths, and / or transmission path identifiers. Further, the RS tag table 450 may include other parameters such as transmission parameters associated with one or more transmission paths, transmission parameters associated with one or more RSs 420, transmission parameters associated with one or more SS430s, and the like. Can be included.

  In one embodiment, one or more RS tag tables 450 can be generated specifically for each RS 420 and include information associated with one or more transmission lines that can be noded by a particular RS 420. be able to. Thus, for example, the RS tag table 450 in one of the RSs 420 may include data associated with all SSs 430 that are directly connected to that RS 420 as well as all subordinate RSs 420. For example, referring to FIG. 4, the RS tag table 450a includes a transmission path identified by the tag “2” from the BS 410 to the RS 420b and a transmission path identified by the tag “3” from the BS 410 to the RS 420c (both of them). May include data associated with RS420a). Similarly, the RS table 450b can include data associated with the transmission path (including the RS 420b) identified by the tag “3” from the BS 410 to the RS 420c. In some examples, the RS tag table 450 may include data associated with one or more SSs 430. For example, the RS tag table 450c may include data associated with SS 430w (ie, “w”), SS 430x (ie, “x”), and SS 430y (ie, “y”). In one embodiment, the tags stored in the tag switching control data serve as an index to the RS tag table 450, and each RS 420 is responsible for data routing and routing according to parameters found in the RS tag table 450 and the tag switching MAP IE. Allows transmission to be performed.

  BS 410 may be configured to generate and / or store one or more BS tag tables 440 and / or one or more RS tag tables 450 when there is some type of change in tag switching network 400. . For example, the BS 410 may be configured when the tag switching network 400 is first established, when one or more RSs 420 are deployed in the tag switching network 400, or when one or more RSs 420 are relocated to the tag switching network. For example, one or more BS tag tables 440 and / or RS tag tables 450 may be generated.

  RS 420 is configured to transmit and / or receive data and / or communicate with one or more SS 430, RS 420 and / or other BS 410 using a communication protocol defined by one or more wireless standards. Any type of communication device may be used. In the disclosed embodiment, RS 420 can function as an intermediate node between one or more SS 430, RS 420, and / or BS 410. For example, the RS 420 can receive data from the BS 410 and send the data to one or more subordinate SSs 430 and / or RS 420. Similarly, in the reverse direction, the RS 420 can receive data from the SS 430 or a lower RS 420 and send the data to another RS 420 or BS 410.

  Further, the RS 420 can be configured to store and / or access one or more RS tag tables 450. For example, as shown in FIG. 4, the RS 420a can store the RS tag table 450a, the RS 420b can store the RS tag table 450b, and the RS 420c can store the RS tag table 450c.

  As shown in FIG. 5B, the RS 420 accesses and stores at least one central processing unit (CPU) 421, information and computer program instructions configured to execute computer programs for performing various processes and methods. Random access memory (RAM) 422 and read only memory (ROM) 423 configured to: memory (memory) 424 for storing data and information, for storing tables, lists, or other data structures One or more databases 425, one or more I / O devices 426, one or more interfaces 427, one or more antennas 428, etc., can include one or more of these components. Each of these components is well known in the art and will not be further described.

  SS 430 may be any type of wireless client device configured to communicate with BS 410 and / or other SS 430 and RS 420 using one or more wireless communication standards. SS430 includes, for example, servers, client devices, mainframes, desktop computers, laptop computers, network computers, workstations, personal digital assistants (PDAs), tablet PCs, scanners, telephone devices, pagers, cameras, music devices, etc. Can be included. In one example, SS 430 may be a mobile computing device. In other examples, SS 430 may be a “non-mobile” computing device that is placed in a mobile environment (eg, an airplane, ship, bus, passenger vehicle, automobile, etc.).

  As shown in FIG. 5C, the SS 430 accesses and stores at least one central processing unit (CPU) 431, information and computer program instructions configured to execute computer programs for performing various processes and methods. Random access memory (RAM) 432 and read only memory (ROM) 433 configured to: memory (memory) 434 for storing data and information, for storing tables, lists, or other data structures One or more databases 435, one or more I / O devices 436, one or more interfaces 437, one or more antennas 438, etc., may be included. Each of these components is well known in the art and will not be further described.

  In one embodiment, one or more DL-MAP and UL-MAP messages can be used to allocate channel access for downlink and uplink communications, respectively. That is, each of the DL-MAP messages may include one or more DL-MAP information elements (MAP IEs), and each of the one or more DL-MAP IEs is within the current downlink subframe. Parameters associated with the access slot can be included. Each UL-MAP message may include one or more UL-MAP IEs, each of the one or more UL-MAP IEs being a parameter associated with an access slot in the current uplink subframe. Can be included. Additionally and / or alternatively, hybrid automatic repeat request (HARQ) MAP messages can be used to allocate channel access for downlink and uplink communications. For example, each HARQ MAP message may include one or more DL-HARQ MAP IEs or UL-HARQ MAP IEs, and each of the one or more DL-HARQ MAP IEs or UL-HARQ MAP IEs may include: It may include parameters associated with access slots (ie, HARQ data bursts) in the current uplink or downlink subframe. In one embodiment, the DL-HARQ MAP IE or UL-HARQ MAP IE may include a reduced CID (RCID) that identifies a destination device (eg, SS 430w, SS 430x, SS 430y, etc.) to which the data burst is directed. As used in the following description, the MAP message may include, for example, a UL-MAP message, a DL-MAP message, a DL-MAP message, a DL-HARQ MAP message, and / or a UL-HARQ MAP message, The MAP IE may include, for example, UL-MAP IE, DL-MAP IE, DL-HARQ MAP IE, and / or UL-HARQ MAP IE, and the CID may include, for example, CID, RCID, and the like. .

  FIG. 6A illustrates a transmission example of tag switching control data related to transmission of a connection switching control data field in a tag switching network such as the tag switching network 400 corresponding to the disclosed embodiment. As shown in FIG. 6A, one or more connection switching control data (eg, MAP IE including CID and / or RCID) may be replaced by a single tag switching control data (ie, MAP IE including tags). The one or more connection switching control data can be transferred to the data burst portion of the subframe associated with the tag switching control data. The tag switching control data can be used to transmit a frame along a transmission path from the BS 410 to the destination RS 420. The connection switching control data can be used by the destination RS 420 to process the data and send it to one or more SSs 430. The destination RS 420 may be an RS 420 that functions for one or more SSs 430.

  For example, the tag switching control data “3” can be stored in the MAP message area instead of the CID (or RCID), and the connection switching control data “w”, “x”, and “y” are associated with each other. Placed in the data portion of the data burst. The control data “3” provides details regarding the connection switching control data in the data burst portion of the frame and the location (eg, location and length) of the data for “w”, “x”, and “y”. Since the tag switching control data identifies the transmission path, only the transmission parameters related to the relay link can be used for the tag switching control data. For example, the tag switching control data can include a tag value (Tag) for identifying a transmission path to the functioning RS 420, a DIUC for a relay link, a parameter for identifying the position of data in the current frame, and the like. .

  Thus, a single tag can be used to identify and manage all connections along a single transmission line. In one embodiment, each RS 420 along a transmission line maintains an RS tag table 450 that identifies connections along the transmission line until it arrives at the destination node and can forward the data to the next node. In another embodiment, routing information can be embedded in the transmission path ID and one or more related instructions can be stored in memory during pre-configuration or signaling. As described above, the RS 420 can be configured to access the command without accessing the RS tag table 450, decode the transmission path ID, and transfer the data. Once the packet data arrives at the destination node, the destination node can unpack and process the frame data and send the data burst to the destination device, ie SS 430.

  For example, referring again to FIG. 4, BS 410 can transmit a data burst (ie, data bursts w, x, and y) to one or more SSs 430 in a single frame. Instead of using a plurality of control data each including a CID or RCID, the BS 410 can use a single tag switching control data including a tag for identifying a transmission path. For example, the BS 410 can transmit data to SS 430w, SS 430x, and SS 430y, which are subordinate to the RS 420c, by identifying a common transmission path to the RS 420c. Accordingly, the BS 410 uses a single tag switching control data for processing via the intermediate RS 420a and RS 420b, that is, a single tag switching control data for identifying a transmission path to the RS 420c using three connection switching control data. To provide information to SS 430w, SS 430x and SS 430y.

  FIG. 6B illustrates an example transmission of tag switching control data prior to transmission of a connection switching control data field in a tag switching network, such as tag switching network 400, corresponding to the disclosed embodiment. As shown in FIG. 6B, tag switching control data in a frame (ie, MAP IE including toughness) is converted into one or more connection switching control data (ie, MAP IE including CID and / or RCID) in another frame. It can be used to transmit data in association. For example, the tag switching control data of the first frame can provide transmission path routing information to one or more connection switching control data included in a data burst portion of a subframe in one or more subsequent frames. The tag switching control data can be used to transmit a frame from the BS 410 along the transmission path to the destination RS 420. The connection switching control data can be used to process the data by destination RS 420 and send it to one or more SSs 430. The destination RS 420 may be an RS 420 that functions for one or more SSs 430. In one embodiment, subsequent frames are contiguous immediately after the first frame. Alternatively and / or additionally, the subsequent frame may be any frame that follows the first frame that includes tag switching control data associated with the subsequent frame.

  For example, tag switching control data “3” can be stored in the MAP message area of the first frame instead of CID (or RCID), and connection switching control data “w”, “x” and “y” It can be placed in the data part of the same frame. The data associated with the tag switching control data “3” may provide details regarding where the control data for “w”, “x” and “y” can be found in the data burst portion of the same frame. it can. Furthermore, the tag switching control data “3” can provide details regarding where in the data burst portion of the subsequent frame the data for “w”, “x” and “y” can be found. Since the tag switching control data specifies a transmission path, only the transmission parameters related to the relay link can be used for the tag switching control data. For example, the tag switching control data includes a tag value for identifying a transmission path to the RS 420 to be functionalized, a DIUC for the relay link, a parameter for identifying the data position of the current frame, and a data position of the subsequent frame. An identifying parameter can be included.

  FIG. 6C illustrates an example transmission of tag switching control data that leads to the setting of the connection switching control data field in a tag switching network, such as the tag switching network 400, corresponding to the disclosed embodiment. As shown in FIG. 6C, the connection switching control data can be set during connection setup. This setting may include, for example, transmission of one or more connection switching control data identifying one or more data burst fields of subsequent frames. Thus, when one or more frames are sent following the connection setup, the tag switching control data (i.e., the MAP IE including the tag) is transmitted to the one or more connection switching control data (i.e., the MAP IE including the tag). It can be used to transmit data in association with MAP IEs including CID and / or RCID. In one embodiment, the subsequent frame may be any frame that follows the connection setup process.

  For example, the tag switching control data “3” can be stored in the MAP message area of the first frame instead of the CID (or RCID), and the data parts “w”, “x”, and “y” Can be placed in the data part. The data associated with the tag switching control data “3” may provide details on where the control data for “w”, “x” and “y” can be found in the data burst portion of the same frame. it can. Connection switching control data set during connection setup can be used to route data for “w”, “x”, and “y” and can be found in the data burst portion of the frame.

  FIG. 7A is an example flowchart 700 a illustrating processing of downlink communication sent from the BS 410. The BS 410 can receive data from the external network (step 705), and determines the destination SS 430 from the data. Based on the destination SS 430, the BS 410 can determine a transmission path including the tag identifier (step 710). The BS 410 allocates resources along the transmission path (step 715). In addition, the BS 410 can add one or more connection switching control data and one or more tag switching control data and assign transmission parameters for both (step 720). Next, the BS 410 can transmit the frame.

  FIG. 7B is an example flowchart 700b illustrating a process of downlink communication received from the BS 410 by the RS 420. RS 420 can receive frame data from BS 410 (step 750) and identifies one or more tag switching control data from the frame (step 755). The RS 420 can check the tag switching control data to determine whether or not the frame is tagged for itself (step 760). If the RS 420 determines that the frame is tagged for itself (step 760, Yes), the RS 420 unpacks the data and switches the connection included in the data burst area of the frame. The control data is decoded (step 765). Further, the RS 420 can transmit data associated with one or more connection switching control data to the SS 430 identified by the respective connection switching control data (step 770).

  If the RS 420 determines that the frame is for another RS 420 (step 760, No), the RS 420 can transfer the data to the next RS 420 along the transmission path. In one embodiment, the RS 420 can access the RS tag table 450, use the tag as an index for the table, decode the tag switching control data, and determine the transmission path associated with the tag ( Step 775). In another embodiment, routing information can be embedded in the channel ID and one or more associated instructions can be stored in memory during presetting or signaling. In this way, the RS 420 can be configured to access the command, decode the transmission path ID, and transfer the data without accessing the RS tag table 450.

  Based on the decoded result, the RS 420 can process the data (step 780). In one embodiment, the RS 420 can process the data, for example, by forwarding the frame to the next RS 420 in the transmission path. Alternatively, the RS 420 can drop the frame. That is, the RS 420a can transfer data to a node in the RS 420a transmission path and drop data destined for a node not in the RS 420 transmission path. Thus, the BS 410 can send frame data to the destination SS 430 by one or more RSs 420 using the tag switching control data.

  FIG. 8A is an example flowchart 800a illustrating processing of uplink communication received from RS 420 by BS 410. BS 410 may receive a notification of incoming data transmission (step 805). The BS 410 can identify the transmission path for the data transmission (step 810) and can allocate resources along the upstream transmission path (step 815). Further, the BS 410 can assign transmission parameters of tag switching control data for SS 430 and RS 420 along the transmission path (step 820). BS 410 may send a control message (ie, a MAP message) that includes transmission parameters to SS 430 (step 825) and may wait for data from SS 430 (step 830).

  FIG. 8B is an example flowchart 800b illustrating processing of uplink communication received from SS 430 by RS 420. RS 420 may receive a MAP message from BS 410 (step 850). RS 420 may identify control data (step 860) and wait for uplink data from SS 430 or a lower RS 420 (step 860). If the uplink data is from SS 430 (step 865, Yes), RS 420 can transmit the data received from SS 430 to BS 410 using the tag switching control data (step 870). If the data is not from SS 430 (step 865, No), RS 420 can directly transfer the received data to BS 410 (step 875).

  FIG. 9 is a block diagram of an example RS420 architecture corresponding to the disclosed embodiments. The architecture 900 can include a receiving unit 910, a buffer unit 920, a transmitting unit 930, and a control unit 940. Receiving unit 910 can be configured to receive data from one or more BSs 410, SS 430, and other RSs 420, and can be configured to process the received data. The buffer unit 920 can be configured to buffer data processed by the receiving unit 910. For example, the buffer unit 920 can identify the data, change the data, and the like. The control unit 940 can be configured to determine whether incoming data is packet data or includes control data, ie, a MAP message. If the incoming data is packet data, the control unit 940 can be configured to perform one or more processes including, for example, retransmission, fragmentation, packing, and the like. If the incoming data is a MAP message, the control unit 940 can be configured to change the control data. Further, the control unit 940 can be configured to determine one or more parameters for the receiving unit 910 and the transmitting unit 930. The transmission unit 930 can be configured to perform preprocessing of data sent from the buffer unit 920 based on one or more parameters determined by the control unit 940. The transmission unit 930 can also be configured to transmit data to one or more BSs 410, SS 430 and other RSs 420.

  FIG. 10 is a flowchart 1000 of an example process by RS 420 using architecture 900, corresponding to the disclosed embodiments. Data sent from one or more BSs 410, SS 430, and other RSs 420 may be received by the receiving unit 910 of RS 420 (step 1005). The receiving unit 910 can perform processing on the received data (step 1010). The processing can include, for example, decoding, demodulation, conversion from an analog radio signal to a digital radio signal, and the like.

  Based on the information provided by the receiving unit 910, the control unit 940 may determine whether the received data is a MAP message (step 1015). If the received data is a MAP message (step 1015, Yes), the control unit 940 can identify one or more control data in the MAP (eg, MAP IE). The control unit 940 can determine whether the control data is for itself or whether the control data is to be relayed to another RS 420 or BS 410 (step 1025). If the control data is for the current RS 420, the control unit 940 receives the next data burst in the defined time slot and subchannel according to the transmission parameters included in the connection switching control data. Can be set. When the control unit 940 determines that the control data is not intended for itself, the control unit 940 can check the tag information in the RS tag table 450 to determine the next node in the transmission path. Furthermore, the control unit 940 can determine one or more transmission parameters and transfer the control data to the transmission unit 930. The transmission unit 930 can perform preprocessing of the received control data (step 930), and can transmit the data according to the transmission parameters determined by the control unit 940 (step 1035).

  If the received data is not control data (step 1015, No), the control unit 940 can execute data processing (step 1020). For example, the control unit 940 of the RS 420 that receives the data can set the transmission unit 930 to forward the data burst to the next node without further processing. If the received data is packet data and is for the receiving RS 420, the control unit 940 can decode the control data embedded in the data burst and / or set during connection setup. . The control unit 940 also configures the transmission unit 930 to transmit one or more associated connection switching control data and packet data for the SS 430 within the indicated time slot and sub-channel coverage (step 1025). ), And the data can be transferred to the transmission unit 930. The transmission unit 930 can perform preprocessing of the received control data (step 1030), and can transmit the data according to the transmission parameters determined by the control unit 940 (step 1035).

  FIG. 11 is a diagram illustrating an example of communication from the BS 110 in the tag switching network 400. As shown in FIG. 11, the network 400 is expanded to include RSs 420d, 420e and 420f, and SS 430s, 430t, 430u and 430z. In one embodiment, the BS 110 can store one or more BS tag tables 440. The one or more BS tag tables 440 may include data associated with one or more relay nodes, one or more transmission paths, and / or one or more transmission path identifiers. As shown in FIG. 11, the BS tag table 440 includes six transmission lines, that is, transmission line 1 (ie, transmission line from BS 410 to RS 420a), transmission line 2 (ie, transmission line from BS 410 to RS 420b), transmission Path 3 (i.e. transmission path from BS 410 to RS 420c), transmission path 4 (i.e. transmission path from BS 410 to RS 420d), transmission path 5 (i.e. transmission path from BS 410 to RS 420e), transmission path 6 (i.e. The transmission path from the BS 410 to the RS 420f can be identified.

  Furthermore, the BS tag table 440 can identify the relationship between one or more transmission paths and one or more SSs 430. For example, the BS tag table 440 communicates SS 430 t (ie, “t”) when communicating via the transmission line 1 and SS 430 u (ie, “u”) when communicating via the transmission line 2 via the transmission line 3. SS 430w, 430x, and 430y (ie, “w”, “x”, and “y”) at the time can be identified as SS 430z (ie, “z”) when communicating via the transmission line 6. Further, the BS tag table 440 can indicate that the SS 430 communicates with the BS 410. While the BS tag table 440 indicates that there is no duplication or overlap of information provided to the SS 430, a single SS 430 can receive information over one or more transmission paths. For example, SS 430 can receive information from RS 420c and RS 420f, which allows SS 430y to be associated with a transmission path for RS 420c and RS 420f. As shown in FIG. 11, “y” appears not only on the same line as “3” shown in the BS tag table 440 but also on the same line as “6” (not shown). ).

  In one embodiment, each RS 420 can store one or more RS tag tables 450. The RS 420a is a higher RS 420 than the RS 420b, RS 420c, RS 420e, and RS 420f, and is in the transmission path for each of these lower RSs 420. For example, the RS tag table 450a includes four transmission lines, that is, transmission line 2 (that is, transmission line to RS 420b), transmission line 3 (that is, transmission line to RS 420c), and transmission line 5 (that is, transmission line to RS 420e). Transmission line) and transmission line 6 (ie, transmission line to RS 420f) can be identified. Furthermore, the RS tag table 450a can instruct that the SS 430t is provided by the RS 420a. Since the RS 420b is an upper RS 420 with respect to the RS 420c and the RS 420f, and is in a transmission path for each of the lower RS 420, the RS tag table 450b has two transmission paths, that is, transmission path 3 (that is, transmission to the RS 420c). Path) and transmission path 6 (ie, transmission path to RS 420f). Further, the RS tag table 450b can instruct that the SS 430u is provided with information by the RS 420b. The RS tag table 450c of the RS 420c does not need to include transmission path information because the RS 420c does not have the lower RS 420. However, the RS tag table 450c can instruct that SS 430w, SS 430x, and SS 430y are provided with information by the RS 420c. Similarly, the RS tag table 450f of the RS 420f does not need to include transmission path information because the RS 420f does not have a lower RS 420. However, the RS tag table 450f can instruct that the SS 430z is provided with information by the RS 420f. RS 420d and RS 420e do not have RS tag table 450 because RS 420d and RS 420e do not have subordinate RS 420, and do not provide any information to SS 430, or RS tag table 450 has their data. It is not necessary to have it.

  In the example of FIG. 11, the BS 410 can receive data for SS 430s, SS 430t, SS 430u, SS 430w, SS 430x, SS 430y, and SS 430z. The BS 410 can access the BS tag table 440, determine a transmission path for each SS 430, and generate a tag switching MAP IE for each transmission path. Further, the BS 410 can generate connection switching control data for each SS 430 that receives data. The BS 410 can place the connection switching control data in the data burst area, and can place the associated tag switching control data in the frame MAP IE slot, the MAC header, or both. For example, referring to data frame 460 between BS 410 and RS 420a, BS 410 can send a frame that includes four tag switching control data (each tag switching control data associated with the data burst region of the frame). . That is, the tag switching control data 1 can be associated with the data burst area t, the tag switching control data 2 can be associated with the data burst area u, and the tag switching control data 3 can be associated with the data burst area wxy. The tag switching control data 6 can be associated with the data burst area z. Once the BS 410 completes processing of the frame, the BS 410 can transmit the frame to the next node in the transmission path, that is, the RS 420a.

  The RS 420a can receive the data frame 460 and process each tag switching control data. In this example, the data frame 460 can include four tag switching control data. The RS 420a can determine that the tag included in the tag switching control data 1 identifies the RS 420a, and the RS 420a can decode the connection switching control data in the data burst region t. Further, the RS 420a can transmit related data included in the data burst area t to the SS 430t according to the parameter of the connection switching control data.

  The RS 420a can determine that the tag switching control data 2, 3 and 6 are not for the RS 420a, and the RS 420a accesses the RS tag table 450a using the tag found in the tag switching control data, respectively. The next node in the transmission path for the current node can be determined. In this example, RS 420a can determine that RS 420b is the next node, and RS 420a can forward the remaining frame data as data frame 470 to RS 420b. However, if the RS 420a determines that the next node is not in the transmission path of the RS 420a, the RS 420a can drop the frame. For example, RS 420a can transfer data to RS 420b and RS 420e, and drop data destined for RS 420d.

  The RS 420b can receive the data frame 470 and process each tag switching control data. In this example, the data frame 470 includes three tag switching control data. The RS 420b can determine that the tag included in the tag switching control data 2 identifies the RS 420b, and the RS 420b can decode the connection switching control data in the corresponding data burst region u. The RS 420b can transmit related data included in the data burst area u to the SS 430u according to the parameter of the connection switching control data.

  The RS 420b can determine that the frame control data 3 and 6 are not intended for the RS 420b, and the RS 420b accesses the RS tag table 450b using the tag found in the tag switching control data, and in the transmission path. The next node can be determined. In this example, RS 420b can determine that RS 420c is the next node for frame data corresponding to control data 3, and RS 420f is the next node for frame data corresponding to control data 6. . The RS 420b can transfer frame data corresponding to the control data 3 as a data frame 480 to the RS 420c, and can transfer frame data corresponding to the control data 6 as a data frame 490 to the RS 420f. However, if the RS 420b determines that the next node is not in the transmission path of the RS 420b, the RS 420b drops the frame. For example, RS 420b can transfer data to RS 420c and RS 420f and drop data destined for RS 420d and RS 420e.

  The RS 420c can receive the data frame 480 and process each tag switching control data. In this example, the data frame 480 can include only one tag switching control data. The RS 420c can determine that the tag included in the tag switching control data 3 identifies the RS 420c, and the RS 420c can decode the connection switching control data in the data burst area wxy. The RS 420c can transmit related data included in the data burst area wxy to SS 430w, SS 430x, and SS 430y according to the parameters of the connection switching control data for each SS 430.

  Similarly, the RS 420f can receive the data frame 490 and process each tag switching control data. In this example, the data frame 490 can include only one tag switching control data. The RS 420f can determine that the tag included in the tag switching control data 6 identifies the RS 420f, and the RS 420f can decode the connection switching control data in the data burst region z. The RS 420f can transmit related data included in the data burst region z to the SS 430z according to the connection switching control data.

  Thus, the network 400 can transmit and receive data using one or more relay nodes by replacing one or more connection switching control data with one or more tag switching control data.

  Although the disclosed embodiment illustrates a tag switching network based on the IEEE 802.16 family of standards, the disclosed embodiment is configured to transmit or retransmit data to one or more other network nodes. Any network that uses one or more network nodes can be implemented. The disclosed embodiments can provide improved performance. In particular, the disclosed embodiments can provide a simplified network node architecture, improve management of wireless communication connections, increase packet switching processing speed, and improve resource utilization.

  It will be apparent to those skilled in the art that various modifications and variations can be made in the tag switched wireless transmission system and method. The standards and illustrated aspects are to be considered merely exemplary, with the true scope of the disclosed embodiments being intended to be indicated by the appended claims and their equivalents.

1 is a block diagram of a conventional multi-hop relay (MR) network example. It is a figure which shows the example of the conventional MAC frame control format. It is a figure which shows the conventional MAP IE example. It is a block diagram of the message processing example in a tag switching network corresponding to the disclosed Example. FIG. 6 is a block diagram of an example base station (BS) corresponding to the disclosed embodiments. FIG. 6 is a block diagram of an example relay station (RS) corresponding to the disclosed embodiment. FIG. 6 is a block diagram of an example subscriber station (SS) corresponding to the disclosed embodiment. It is a figure which shows the example of tag switching data processing corresponding to the disclosed Example. It is a figure which shows the example of tag switching data processing corresponding to the disclosed Example. It is a figure which shows the example of tag switching data processing corresponding to the disclosed Example. 6 is a flowchart of an example BS downlink process corresponding to the disclosed embodiment. It is a flowchart of the RS downlink process example corresponding to the disclosed Example. 6 is a flowchart of an example BS uplink process corresponding to the disclosed embodiment. It is a flowchart of the RS uplink process example corresponding to the disclosed Example. FIG. 3 is a block diagram of an example RS architecture corresponding to the disclosed embodiments. It is a flowchart of the process example by RS architecture corresponding to the Example disclosed. It is a system diagram showing an example of data processing in a network corresponding to the disclosed embodiment.

Claims (63)

A method for processing wireless data in a multi-hop relay based wireless communication network including a plurality of intermediate nodes and a plurality of destination devices, comprising:
Determining at least one transmission path for each of the plurality of intermediate nodes, the at least one transmission path transferring data associated with all intermediate nodes along the at least one transmission path;
Determining a transmission path identifier to be a destination node identifier for each of the at least one transmission path;
Transmitting transmission data to be transmitted based on at least one transmission path identifier to at least one destination device of the plurality of destination devices;
Only including,
The transmission data includes the transmission path identifier,
The wireless data processing method , wherein the transmission path identifier includes information for identifying at least one destination node and does not include information for identifying a position of the intermediate node .   The wireless data processing method according to claim 1, further comprising transmitting at least one data frame including transmission data and at least one transmission path identifier to at least one of the plurality of intermediate nodes.   The wireless data processing method according to claim 1, further comprising a step of storing information on the at least one transmission path and the transmission path identifier.   The wireless data processing method according to claim 2, wherein the at least one transmission path identifier is included in control data of the at least one data frame.   The wireless data processing method according to claim 4, wherein the control data of the at least one data frame includes at least one MAP information element (MAP IE).   The wireless data processing method according to claim 4, wherein the control data is included in a MAP message, and the MAP message is a downlink (DL) MAP message.   The wireless data processing method according to claim 4, wherein the control data is included in a MAP message, and the MAP message is an uplink (UL) MAP message.   The radio data processing method according to claim 2, wherein the transmission data is included in a data burst area of the at least one data frame.   The radio data processing method according to claim 8, wherein at least one tag switching connection identifier capable of identifying each transmission path is included in a data burst area of the at least one data frame.   2. The wireless data processing method according to claim 1, wherein the step of determining the transmission path identifier includes the step of determining the transmission path identifier when the wireless communication network is established.   The step of determining the transmission path identifier includes determining the transmission path identifier when at least one of the plurality of intermediate nodes and one of the plurality of destination devices participate in the wireless communication network. The wireless data processing method according to claim 1, further comprising:   The step of determining the transmission path identifier includes determining the transmission path identifier when at least one of the plurality of intermediate nodes and one of the plurality of destination devices leave the wireless communication network. The wireless data processing method according to claim 1. Each of the plurality of intermediate nodes is included in at least one transmission path;
Providing each of the plurality of intermediate nodes with data for transferring the transmission line and a transmission line identifier for each transmission line of the at least one transmission line in which each intermediate node is included; The wireless data processing method according to claim 1, further comprising:   The wireless data processing method according to claim 1, wherein the wireless communication network further includes at least one control node.   The wireless data processing method according to claim 14, wherein the at least one control node is a base station.   The wireless data processing method according to claim 14, wherein the at least one control node is a relay station.   The wireless data processing method according to claim 1, wherein the plurality of intermediate nodes include a plurality of relay stations.   The wireless data processing method according to claim 1, wherein the destination node identifier specifies at least one destination intermediate node among the plurality of intermediate nodes. A wireless communication station for wireless communication in a multi-hop relay-based wireless communication network including a plurality of intermediate nodes and a plurality of destination devices,
At least one memory for storing data and instructions;
And at least one processor configured to access the memory;
The at least one processor executes instructions when
Determining at least one transmission path for each of the plurality of intermediate nodes, the at least one transmission path transferring data associated with all intermediate nodes along the at least one transmission path;
Determining a transmission path identifier to be a destination node identifier for each of the at least one transmission path;
Configured to transmit transmission data transmitted based on at least one of the transmission path identifiers to at least one destination device of the plurality of destination devices ;
The transmission data includes the transmission path identifier,
The wireless communication station , wherein the transmission path identifier includes information identifying at least one destination node, and does not include information identifying a position of the intermediate node . A method for performing data processing at an intermediate node in a multi-hop relay based wireless communication network including a plurality of intermediate nodes and a plurality of destination devices, comprising :
Receiving transmission data including at least one first control data and at least one second control data by a receiving unit, wherein each of the at least one first control data identifies each transmission path; Receiving the transmission data, wherein each of the at least one second control data includes a transmission path identifier, and the transmission path identifier is a destination node identifier;
Processing the transmission data by the receiving unit;
Buffering data processed by communicating with the receiving unit by a buffer unit;
Communicating with the buffer unit by the transmitting unit to receive buffered data from the buffer unit;
Performing pre-transmission processing of the buffered data;
By the control unit, the receiving unit, in communication with the buffer unit and the transmission unit, viewed including the steps of: setting one or more receiving parameters associated with the receiver unit,
The data processing execution method , wherein the transmission path identifier includes information identifying at least one destination node, and does not include information identifying a position of the intermediate node .   The data processing execution method according to claim 20, further comprising the step of setting one or more transmission parameters associated with the transmitting unit by the control unit.   21. The data processing execution method according to claim 20, further comprising the step of processing the buffered data received from the buffer unit by the transmitting unit based on one or more transmission parameters set by the control unit.   The data processing execution method according to claim 20, further comprising a step of determining whether or not the transmission data includes control data by the control unit.   The data processing execution method according to claim 22, further comprising a step of identifying each of at least one second control data when the control unit determines that the transmission data includes control data.   The data processing execution method according to claim 20, wherein the transmission path identifier sets a transmission path including the intermediate node.   The data processing execution method according to claim 20, further comprising a step of determining whether the transmission data is for the intermediate node based on the transmission node identifier.   The data processing execution method according to claim 20, wherein the first control data is a first MAP information element (MAP IE), and the second control data is a second MAP IE.   The data processing execution method according to claim 20, wherein the wireless communication network further includes at least one control node.   The data processing execution method according to claim 28, wherein the at least one control node is a base station.   The data processing execution method according to claim 28, wherein the at least one control node is a relay station.   The data processing execution method according to claim 20, wherein the destination node identifier specifies at least one destination intermediate node. An intermediate node for performing data processing in a multi-hop relay-based wireless communication network including a plurality of intermediate nodes and a plurality of destination devices ,
A receiving unit operable to receive and process transmission data including at least one first control data and at least one second control data, wherein each of the at least one first control data is a transmission line. A receiving unit in which each of the at least one second control data includes a transmission path identifier, and the transmission path identifier is a destination node identifier;
A buffer unit configured to communicate with the receiving unit to buffer the processed data;
A transmission unit configured to communicate with the buffer unit and receive buffered data from the buffer unit;
A control unit operable to communicate with the receiving unit, the buffer unit, and the transmitting unit to set one or more receiving parameters associated with the receiving unit ;
The transmission path identifier includes information identifying at least one destination node, and does not include information identifying the position of the intermediate node. A method for processing data in a multi-hop relay-based wireless communication network including a plurality of intermediate nodes and a plurality of destination devices, comprising:
Comprising the steps of: providing a heat Okude over data to at least one destination device of the plurality of destination devices,
Determining a transmission path for the destination intermediate node to be communicated with the destination intermediate node by the at least one destination device;
Assigning to the data first control data including one or more parameters associated with the at least one destination device;
Assigning second control data including a transmission path identifier to be a destination node identifier to the data;
A step of at least one transmission frame including the data transmitted along the transmission path, viewed contains a
The data processing method , wherein the transmission path identifier includes information for identifying at least one destination node, and does not include information for identifying a position of the intermediate node .   The data processing method according to claim 33, wherein the preparation of data is for receiving data from another node.   34. The data processing method according to claim 33, further comprising the step of storing the first control data in a data portion of the at least one transmission frame.   34. The data processing method according to claim 33, further comprising transmitting the first control data during connection setup.   The data processing method according to claim 33, further comprising the step of storing the second control data in control data of the at least one transmission frame.   The data processing method according to claim 33, wherein the second control data includes a parameter associated with the transmission path.   The data processing method according to claim 33, wherein the second control data is associated with at least one first control data.   The data processing method according to claim 33, wherein the second control data is associated with a plurality of first control data.   41. The data processing method according to claim 40, wherein the plurality of first control data share the same data area of the transmission frame, and the second control data specifies the same data area.   The data processing method according to claim 33, wherein the first control data is a first MAP information element (MAP IE), and the second control data is a second MAP IE.   The data processing method according to claim 33, wherein the wireless communication network further includes at least one control node.   44. The data processing method according to claim 43, wherein the at least one control node is a base station.   44. The data processing method according to claim 43, wherein the at least one control node is a relay station.   The data processing method according to claim 33, wherein the destination node identifier specifies the destination intermediate node. A wireless communication station for wireless communication in a multi-hop relay-based wireless communication network including a plurality of intermediate nodes and a plurality of destination devices,
At least one memory for storing data and instructions;
And at least one processor configured to access the memory;
The at least one processor executes instructions when
Providing a heat Okude over data to at least one destination device of the plurality of destination devices,
Determining a transmission path for the destination intermediate node to be communicated with the destination intermediate node by the at least one destination device;
Assigning to the data first control data including one or more parameters associated with the at least one destination device;
Assigning second control data including a transmission path identifier to be a destination node identifier to the data;
It is configured to transmit at least one transmission frame including the data along the transmission path ,
The wireless communication station , wherein the transmission path identifier includes information identifying at least one destination node, and does not include information identifying a position of the intermediate node . A method for processing data by an intermediate node in a multi-hop relay-based wireless communication network including a plurality of intermediate nodes and a plurality of destination devices, comprising:
Receiving transmission data including destination device data for at least one destination device of a plurality of destination devices, at least one first control data, and at least one second control data, the at least one Each of the first control data includes a tag switching connection identifier capable of identifying each transmission path, each of the at least one second control data includes a transmission path identifier, and the transmission path identifier is a destination node identifier. Receiving the data; and
Evaluating a transmission path identifier in each of the at least one second control data;
Look including the steps of: processing the data based on the transmission path identifier,
The data processing method , wherein the transmission path identifier includes information for identifying at least one destination node, and does not include information for identifying a position of the intermediate node . Processing the data comprises:
49. The data processing method according to claim 48, further comprising: determining a destination intermediate node based on the transmission path identifier included in the at least one second control data.   49. The data processing method according to claim 48, wherein the at least one destination device communicates with the destination intermediate node.   The data processing method according to claim 48, wherein the destination node identifier specifies the destination intermediate node.   49. The data processing method according to claim 48, further comprising a step of processing at least a part of the data for the destination device when the intermediate node is the destination intermediate node.   53. The data processing method according to claim 52, further comprising processing at least a part of the data for the destination device based on the at least one first control data. Processing the data comprises:
49. The data processing method according to claim 48, further comprising the step of determining whether or not a next node specified by the at least one second control data is on the same transmission path as the intermediate node.   55. The data processing method according to claim 54, further comprising a step of dropping said data when said next node is not on the same transmission path as said intermediate node.   55. The data processing method according to claim 54, further comprising a step of transmitting the data when it is determined that the next node is on the same transmission path as the intermediate node.   55. The data processing method according to claim 54, further comprising a step of transmitting the data to another intermediate node on the same transmission path when the intermediate node is not the destination intermediate node.   49. The data processing method according to claim 48, wherein the wireless communication network further includes at least one control node.   59. The data processing method according to claim 58, wherein the at least one control node is a base station.   59. The data processing method according to claim 58, wherein the at least one control node is a relay station.   The data processing method according to claim 48, wherein the intermediate node is a relay station.   The data processing method according to claim 48, wherein the first control data is a first MAP information element (MAP IE), and the second control data is a second MAP IE. An intermediate node in a multi-hop relay-based wireless communication network including a plurality of intermediate nodes and a plurality of destination devices,
At least one memory for storing data and instructions;
And at least one processor configured to access the memory;
The at least one processor executes instructions when
Configured to receive transmission data including destination device data for at least one destination device of the plurality of destination devices, at least one first control data, and at least one second control data; and Each of the at least one first control data includes a tag switching connection identifier capable of identifying each transmission path, each of the at least one second control data includes a transmission path identifier, and the transmission path identifier is The destination node identifier,
Evaluating a channel identifier in each of the at least one second control data;
Configured to process the data based on the transmission path identifier ;
The transmission path identifier includes information identifying at least one destination node, and does not include information identifying the position of the intermediate node.

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