WO2007128220A1 - Procédé et dispositif destinés à un relais combiné composé de plusieurs relais combinés stations-relais mis en oeuvre dans des réseaux de communication sans fil - Google Patents
Procédé et dispositif destinés à un relais combiné composé de plusieurs relais combinés stations-relais mis en oeuvre dans des réseaux de communication sans fil Download PDFInfo
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- WO2007128220A1 WO2007128220A1 PCT/CN2007/001419 CN2007001419W WO2007128220A1 WO 2007128220 A1 WO2007128220 A1 WO 2007128220A1 CN 2007001419 W CN2007001419 W CN 2007001419W WO 2007128220 A1 WO2007128220 A1 WO 2007128220A1
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- signal
- channel processing
- relay
- network node
- base station
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15592—Adapting at the relay station communication parameters for supporting cooperative relaying, i.e. transmission of the same data via direct - and relayed path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2603—Arrangements for wireless physical layer control
- H04B7/2606—Arrangements for base station coverage control, e.g. by using relays in tunnels
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/02—Terminal devices
- H04W88/04—Terminal devices adapted for relaying to or from another terminal or user
Definitions
- the present invention relates to a wireless communication network, and more particularly to a relay device, a base station, and a method thereof for implementing joint relaying of multiple relay devices in a wireless communication network.
- Joint relay as an emerging technology in the field of wireless communications, the basic idea is to utilize the diversity effect through independent channels.
- a source node broadcasts a signal that needs to be transmitted, and a part of a relay device deployed in the network can receive the signal, and then processes and forwards the signal.
- a multi-hop relay network The signals forwarded by the relay device will reach the relay device located at the next hop, and the relay device processes and forwards the signal until the signal reaches the destination (sink).
- the present invention has been made to solve the above problems in the prior art.
- a method for joint relaying of multiple relay devices in a relay device of a wireless communication network comprising the steps of: receiving a signal from a higher level network node; The operation indication information of the base station processes the received signal by using a specific codec manner; and sends the processed signal to the next-level network node.
- a relay apparatus for joint relaying of multiple relay apparatuses in a wireless communication network, comprising a receiving apparatus for receiving a signal from a node of a higher level network; a signal processing apparatus, configured to process the received signal by using a specific codec manner according to operation indication information from the base station; and a sending apparatus, configured to send the processed signal to a next-level network node .
- a method for implementing joint relay of multiple relays based on virtual multiple input in a relay device of a wireless communication network comprising the steps of: receiving a signal from a higher-level network node; performing a channel processing operation on the received signal in a specific channel processing operation manner to generate a signal processed by the channel processing operation; transmitting the signal of the channel processing operation to a next level Network node.
- a relay apparatus for implementing multi-relay apparatus joint relay based on virtual multiple input in a wireless communication network, comprising a receiving apparatus for receiving a network from a higher level a signal of a node; a signal processing device for performing a channel processing operation on the received signal by a specific channel processing operation to generate a signal subjected to channel processing operation; and a transmitting device for transmitting the channel processed The signal of the operation is given to the next level network node.
- a method for assisting a multi-relay device joint relay based on a virtual multiple input multiple in a base station of a wireless communication network comprising the steps of: receiving a network node from a higher level Signaling: performing channel processing reverse operation on the signal from the upper-level network node to generate a signal sequence that is inversely operated by channel processing.
- a base station for assisting a multi-relay device joint relay based on a virtual multiple access multiple in a wireless communication network including a receiving device for receiving a node from a higher-level network a channel processing reverse operation device for performing channel processing reverse operation on the signal from the upper-level network node to generate a signal sequence for channel reverse processing operation.
- spatial diversity or spatial multiplexing gain can be obtained by employing spatial diversity or spatial multiplexing.
- FIG. 1 is a topology diagram of a multi-relay device network according to an embodiment of the present invention
- FIG. 2 is a schematic diagram of an uplink of a joint relay of two relay devices according to an embodiment of the present invention
- FIG. 3 is a flow chart of a method for implementing joint relaying of multiple relay devices in a relay device of a wireless network according to an embodiment of the present invention
- FIG. 4 is a block diagram of a relay device for implementing joint relaying of multiple relay devices in a wireless network according to an embodiment of the present invention
- FIG. 5 is a flowchart of a method for implementing joint relay of multiple relay devices based on virtual multiple input in a relay device of a wireless communication network according to an embodiment of the present invention
- FIG. 6 is a virtual-based network in a wireless communication network in accordance with an embodiment of the present invention.
- FIG. 7 is a flowchart of a method for supporting a multi-relay device joint relay based on virtual multiple input in a base station of a wireless communication network according to an embodiment of the present invention
- FIG. 8 is a block diagram of a base station supporting multi-relay device joint relay based on virtual multiple input in a wireless communication network according to an embodiment of the present invention
- FIG. 9 is a schematic diagram of an uplink of a multi-relay network using spatial multiplexing according to an embodiment of the present invention.
- FIG. 10 is a schematic diagram of an uplink of a multi-relay network employing spatial diversity according to an embodiment of the present invention
- FIG. 11 is a block diagram of a device for processing spatial multiplexing based multiplex signals from a plurality of relay devices in accordance with an embodiment of the present invention
- Figure 12 is a block diagram of an apparatus for processing spatial diversity based multiplex signals from a plurality of relay devices in accordance with an embodiment of the present invention. detailed description
- FIG. 1 is a topological diagram of a multi-relay device network in accordance with an embodiment of the present invention.
- two mobile stations MSS1, MSS2, three relay devices RS1, RS2, S3 and one base station BS are shown.
- RS1 and RS2 serve MSS1, while RS2 and RS3 serve MSS2 to implement joint relay.
- the role of the relay is similar to the remote antenna of the base station or subscriber station.
- the MSS1 in the upper part of Figure 1 sends a signal to a group of relay devices RS1, RS2, after the group of relay devices undergo corresponding processing (for example, space-time coded STC or space-frequency coded SFC) , the processed signals are sent separately.
- processing for example, space-time coded STC or space-frequency coded SFC
- the traditional STC/SFC is a traditional single-relay space-time (frequency) coded transmission method.
- RS1 independently assumes the relay task for signals from MSS1.
- MSS1 represented by [XI, X2]
- RS1 is encoded to generate a new signal sequence (represented by [ ⁇ 2,, - ⁇ ]) and it is combined with another signal (such as The original signal [Xl, X2] is forwarded together in the next hop (for example, forwarded to the BS).
- signals from one source can be separately processed and forwarded by two or more relay devices.
- the MSS2 in the lower part of Figure 1 sends the original signal to a group of relay devices RS2, RS3 serving it. If a single relay scheme is adopted, it may be The base station determines which relay device performs the relay according to the wireless channel related parameters (such as ranging information), and then the selected relay device performs processing and then forwards by using the foregoing signal processing manner.
- the wireless channel related parameters such as ranging information
- the two relay devices respectively process and forward the received signal.
- RS3 forwards the original signal [ ⁇ 1, ⁇ 2] to the base station at the next stage.
- the RS2 processes the signal to generate a new signal sequence [ ⁇ 2,, - ⁇ ] and sends it to the base station.
- FIG. 2 is a schematic diagram of an uplink of a joint relay of two relay apparatuses according to an embodiment of the present invention.
- a mobile station SS transmits original data [ ⁇ 1, ⁇ 2] to two relay devices RS1 and RS2 for which joint relay is provided, and RS1 and RS2 respectively process the original data, thereby generating a signal sequence [ ⁇ 1, ⁇ 2,] and [ ⁇ 2, - ⁇ ], and in the next hop are sent to the network node at the next level (base station, BS as shown).
- the signal received by the base station is expressed as [Yl, ⁇ 2], Yl, ⁇ 2, and the expression is as follows:
- h, and h 2 are channel parameters corresponding to RSI and RS2, respectively. According to the above formula, the following expression can be easily obtained:
- the power control of each relay device can be performed by the base station (the specific implementation is similar to the power control for the mobile station), so that the signals from different RSs are at the same power.
- the level is then received by the base station.
- FIG. 3 is a flow chart of a method for implementing joint relaying of multiple relays in a relay device of a wireless network, in accordance with an embodiment of the present invention.
- step S101 the relay device receives from the upper level The signal of the network node.
- the upper-level network node may be a mobile station, a base station or multiple relay devices, and for different upper-level network nodes, the operation of the incoming signal by the relay device may be different. Therefore, it is necessary to proceed to step S102.
- the relay device determines the upper-level network node according to the operation indication information from the base station (for example, the MAP (mapping) information including the network topology and the signal processing mode adopted by each relay device) (for example, the type of the upper-level network node is known by the MAP information, and the signal processing mode of the upper-level network node is also known correspondingly.
- the subsequent processing of the signal by the relay device is different from the case where the upper-level network node is a mobile station or a base station.
- step S103 the first coding mode of the received signal is adopted according to the operation indication information from the base station.
- the corresponding first decoding mode decodes the signal (the decoding mode can be known by the operation indication information from the base station) to generate a decoded signal sequence, and proceeds to step S104;
- step S104 When the result of the determination is that the upper-level network node is a mobile station or a base station, generally, the signal is the original signal, therefore, directly proceeds to step S104;
- step S104 the relay device uses the specific second coding mode to decode the signal sequence decoded by the first decoding mode in step S103 according to the operation indication information from the base station (including the information indicating the coding mode to be used, etc.) or The original signal from the base station or the mobile station is encoded to generate an encoded signal sequence, and proceeds to step S105;
- step S105 the relay device sends the encoded signal to the next-level network node, and the relay device has learned the type of the next-level network node from the operation indication information sent by the base station and the specific The coding mode, therefore, even if the next-level network node is a mobile station, the encoded signal can still be successfully received and recognized at the receiving end.
- the relay device includes a receiving device 201, a determining device 202, an information processing device 203, and a transmitting device 204.
- the information processing device 203 further includes a decoding device 2031 and an encoding device 2032.
- the receiving device 201 receives a signal from a higher level network node.
- the upper-level network node may be a mobile station, a base station or multiple relay devices, and for different upper-level network nodes, the relay device may operate differently on incoming signals. Therefore, the receiving device 201 needs to transmit the signal according to the determination result of the determining device 202. Give the corresponding device;
- the determining device 202 determines the upper-level network node of the relay device according to the operation indication information from the base station (for example, the MAP information including the network topology and the signal processing manner adopted by each relay device).
- the MAP information knows the type of the upper-level network node, and also knows the signal processing mode of the upper-level network node. For the case where the upper-level network node is a plurality of relay devices, the subsequent processing of the signal by the relay device is different from the case where the upper-level network node is a mobile station or a base station;
- the receiving device 201 transmits the received signal to the decoding device 2031;
- the decoding device 2031 decodes the signal according to the operation indication information from the base station by using a first decoding manner corresponding to the first coding mode of the received signal (the decoding mode may be performed by the base station
- the operation indication information is known;), to generate a decoded signal sequence, and the decoded signal sequence is passed to the encoding device 2032;
- the receiving device 201 directly transmits the received signal to the above-mentioned encoding device 2032;
- the encoding device 2032 performs a signal sequence decoded by the first 'decoding method in the decoding device 2031 or from the base station according to the operation indication information from the base station (including information indicating the encoding mode to be used, etc.) by using a specific second encoding method. Or the original signal of the mobile station is encoded to generate an encoded signal sequence, and the encoded signal sequence is transmitted to the transmitting device 204;
- the transmitting device 204 sends the encoded signal to the next-level network node. Since the relay device has learned the type of the next-level network node and the specific coding mode to be adopted, the operation indication information sent by the base station is Even if the next-level network node is a mobile station, the encoded signal can still be successfully received and recognized at the receiving end.
- FIG. 5 is a flow chart of a method for implementing multi-relay device joint relay based on virtual multiple input in a relay device of a wireless communication network according to an embodiment of the present invention.
- step S301 the relay device receives a signal from a higher-level network node.
- the upper-level network node may be a mobile station, a base station or multiple relay devices, and for different upper-level network nodes, the relay device may operate differently on incoming signals. Therefore, it is necessary to proceed to step S302.
- the relay device determines the operation instruction information (for example, the MAP information including the network topology and the signal processing mode adopted by each relay device) from the base station.
- the upper-level network node for example, the type of the upper-level network node is known by the MAP information, and the signal processing manner of the upper-level network node is also correspondingly known, such as the channel processing operation mode, including spatial diversity and spatial multiplexing. Forward and reverse operation).
- the subsequent processing of the signal by the relay device is different from the case where the upper-level network node is a mobile station or a base station.
- step S303 When the determination result is that the upper-level network node includes multiple relay devices, the process proceeds to step S303; in step S303, according to the indication information from the base station, the first channel processing with the received signal is adopted.
- the first channel processing reverse operation mode corresponding to the operation mode performs channel processing reverse operation on the signal (the channel processing mode may be known by the indication information from the base station) to generate a signal sequence that is reversely operated by channel processing. Going to step S304;
- step S304 When the result of the determination is that the upper-level network node is a mobile station or a base station, generally, the signal is the original signal, therefore, directly proceeds to step S304;
- step S304 the relay device processes the forward operation mode by using a specific second channel according to the operation indication information from the base station (including information indicating the channel processing operation mode that should be adopted), and the first channel is passed in step S303. Processing the signal sequence of the reverse operation mode or the original signal from the base station or the mobile station for channel processing forward operation to generate a signal sequence for channel processing forward operation, and proceeds to step S305;
- step S305 the relay device sends the signal after the channel processing operation to the next-level network node, because the relay device has learned the type of the next-level network node from the operation indication information sent by the base station, and should adopt The specific channel operation processing mode, therefore, even if the next-level network node is a mobile station, the encoded signal can still be successfully received and recognized at the receiving end.
- FIG. 6 is a block diagram of a relay device for implementing multi-relay device joint relay based on virtual multiple input in a wireless communication network according to an embodiment of the present invention.
- the relay device comprises a receiving device 401, a determining device 402, a signal processing device 403 and a transmitting device 404.
- the signal processing device 403 further comprises a channel processing reverse operating device 4031, a channel processing forward operation Device 4032.
- the receiving device 401 receives a signal from a higher level network node.
- the upper-level network node may be a mobile station, a base station or multiple relay devices, and for different upper-level network nodes, the relay device may operate differently on incoming signals. Therefore, the receiving device 401 needs to transmit the signal to the corresponding device according to the determination result of the determining device 402;
- the determining device 402 determines the upper-level network node of the relay device according to the operation indication information from the base station (for example, the MAP information including the network topology and the signal processing manner adopted by each relay device).
- the MAP information knows the type of the upper-level network node, and also knows the channel processing operation mode of the upper-level network node:). For the case where the upper-level network node is a plurality of relay devices, the subsequent processing of the signal by the relay device is different from the case where the upper-level network node is a mobile station or a base station;
- the receiving device 401 transmits the received signal to the channel processing reverse operation device 4031;
- the channel processing reverse operation device 4031 performs channel processing on the signal by using a first channel processing reverse operation mode corresponding to the first channel processing forward operation mode of the received signal according to the indication information from the base station.
- the reverse operation (the channel processing operation mode can be known by the indication information from the base station) to generate a signal sequence for channel processing reverse operation, and the signal sequence is transmitted to a channel processing forward operation device 4032;
- the signal is the original signal, and therefore, the receiving device 401 directly transmits the received signal to the channel processing forward operating device 4032.
- the channel processing forward operating device 4032 adopts a specific second channel processing forward operation pair according to the indication information from the base station (including information indicating the channel processing operation mode that should be adopted), and the passage in the channel processing reverse operation device 4031.
- a channel processing reverse signal mode or a raw signal from a base station or a mobile station performs channel processing forward operation to generate a signal sequence for channel processing forward operation, and transmits the signal sequence to the transmitting device 404;
- the sending device 404 sends the signal after the channel processing operation to the next-level network node.
- the relay device Since the relay device has learned the type of the next-level network node and the specific coding mode to be adopted from the indication information sent by the base station, Even if the next-level network node is a mobile station, the encoded signal can still be successfully received and recognized at the receiving end.
- FIG. 7 is a flow chart of a method for supporting multi-relay device joint relay based on virtual multiple input in a base station of a wireless communication network according to an embodiment of the present invention.
- step S501 the base station receives a signal from a higher-level network node.
- the upper-level network node is a plurality of relays. Device
- step S502 the signal from the upper-level network node is reversely operated according to the channel processing corresponding to the channel processing forward operation mode adopted by the upper-level network node.
- FIG. 8 is a block diagram of a base station supporting multi-relay device joint relay based on virtual multiple input in a wireless communication network according to an embodiment of the present invention.
- the base station includes a receiving device 601, configured to receive signals from a higher-level network node (a network topology structure and a technical problem of primary interest to the present invention, the upper-level network node being a plurality of relay devices), and The received signal is passed to a channel processing reverse operation device 602;
- a higher-level network node a network topology structure and a technical problem of primary interest to the present invention, the upper-level network node being a plurality of relay devices
- the channel processing reverse operation device 602 is configured to perform a reverse operation on the channel processing corresponding to the channel processing forward operation mode adopted by the upper-level network node for the signal from the upper-level network node.
- Figure 9 is a schematic diagram of an uplink of a multi-relay network employing spatial multiplexing in accordance with an embodiment of the present invention.
- the signal [X1, X2, X3] from the mobile station SS arrives at a group of relay devices responsible for its joint relay, RS1, RS2, RS3, each of which is responsible for forwarding a part of the signal from the SS.
- RS1 is responsible for forwarding XI
- RS2 is responsible for forwarding X2
- RS3 is responsible for forwarding X3
- base station, BS in the figure base station
- FIG. 10 is a schematic diagram of an uplink of a multi-relay network employing spatial diversity according to an embodiment of the present invention.
- the signal [X1, X2, X3] from the mobile station SS arrives at a group of relay devices responsible for its joint relay, RS1, RS2, RS3, each of which is responsible for forwarding the same length as the original signal.
- the sequence of signals (preferably, may be a sequence of signals that are inverted by a sequence, or a sequence of original signals) may be used to obtain a diversity gain.
- Figure 11 is a block diagram of a device for processing multiplexed signals based on spatial multiplexing from a plurality of relay devices in accordance with an embodiment of the present invention.
- the device comprises a base station and a relay device, and after the received multiplexed signals are subjected to conventional OFDM demodulation, after a virtual multiple input and multiple output detection device, the multiple signal sequences are recombined (because they are each Part of the original signal, and then Turbo decoding, restore the original signal.
- FIG. 12 is a block diagram of an apparatus for processing spatial diversity based multiplex signals from a plurality of relay devices in accordance with an embodiment of the present invention.
- the device comprises a base station and a relay device, and the received multiple signals are subjected to conventional OFDM demodulation, and after a virtual multiple input and multiple detection device, the minimum likelihood ratio detection is performed, and the multiple signaling is performed.
- the sequence of numbers will be aggregated for comparison and selection, and an optimal signal will be selected and passed to the Tuobo decoder for decoding.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US12/298,950 US8948074B2 (en) | 2006-04-29 | 2007-04-27 | Method and device for cooperative relay with multiple relay stations in wireless telecommunication network |
EP07720992.2A EP2017975B1 (en) | 2006-04-29 | 2007-04-27 | The method and device for combined relay with multiple relay stations in wireless communication networks |
KR1020087026386A KR101468882B1 (ko) | 2006-04-29 | 2008-10-28 | 무선 통신 네트워크들에서 다중 중계국들과 협동 중계를 위한 방법 및 디바이스 |
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CN200610026261.6A CN101064915B (zh) | 2006-04-29 | 2006-04-29 | 在无线通信网络中用于多中继站联合中继的方法及装置 |
CN200610026261.6 | 2006-04-29 |
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WO2007128220A1 true WO2007128220A1 (fr) | 2007-11-15 |
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PCT/CN2007/001419 WO2007128220A1 (fr) | 2006-04-29 | 2007-04-27 | Procédé et dispositif destinés à un relais combiné composé de plusieurs relais combinés stations-relais mis en oeuvre dans des réseaux de communication sans fil |
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US (1) | US8948074B2 (zh) |
EP (1) | EP2017975B1 (zh) |
KR (1) | KR101468882B1 (zh) |
CN (1) | CN101064915B (zh) |
WO (1) | WO2007128220A1 (zh) |
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US20110263271A1 (en) * | 2008-09-26 | 2011-10-27 | Christian Hoymann | Techniques for Uplink Cooperation of Access Nodes |
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- 2007-04-27 WO PCT/CN2007/001419 patent/WO2007128220A1/zh active Application Filing
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EP2017975A4 (en) | 2014-03-05 |
US8948074B2 (en) | 2015-02-03 |
CN101064915B (zh) | 2016-10-05 |
EP2017975A1 (en) | 2009-01-21 |
EP2017975B1 (en) | 2017-02-01 |
KR101468882B1 (ko) | 2014-12-04 |
CN101064915A (zh) | 2007-10-31 |
US20090103472A1 (en) | 2009-04-23 |
KR20080111110A (ko) | 2008-12-22 |
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