WO2014183291A1 - 一种数据的传输方法、设备及系统 - Google Patents
一种数据的传输方法、设备及系统 Download PDFInfo
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- WO2014183291A1 WO2014183291A1 PCT/CN2013/075715 CN2013075715W WO2014183291A1 WO 2014183291 A1 WO2014183291 A1 WO 2014183291A1 CN 2013075715 W CN2013075715 W CN 2013075715W WO 2014183291 A1 WO2014183291 A1 WO 2014183291A1
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- interleaver
- data
- sending device
- sent
- synchronization code
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 101
- 238000000034 method Methods 0.000 title claims abstract description 55
- 238000004891 communication Methods 0.000 claims abstract description 10
- 230000011664 signaling Effects 0.000 claims description 58
- 238000013507 mapping Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 8
- 238000011022 operating instruction Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 210000004556 brain Anatomy 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0056—Systems characterized by the type of code used
- H04L1/0071—Use of interleaving
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M13/00—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes
- H03M13/27—Coding, decoding or code conversion, for error detection or error correction; Coding theory basic assumptions; Coding bounds; Error probability evaluation methods; Channel models; Simulation or testing of codes using interleaving techniques
- H03M13/2771—Internal interleaver for turbo codes
- H03M13/2775—Contention or collision free turbo code internal interleaver
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
- H04L1/0041—Arrangements at the transmitter end
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/20—Negotiating bandwidth
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0446—Resources in time domain, e.g. slots or frames
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Definitions
- the present invention relates to the field of communications, and in particular, to a data transmission method, device and system. Background technique
- Embodiments of the present invention provide a data transmission method, device, and system, which can reduce signaling overhead, improve data transmission efficiency, and reduce time delay.
- a method of data transmission including:
- the transmitting device obtains the time-frequency resource used by the data to be transmitted and the information of the interleaver, where the information of the interleaver includes a correspondence between the interleaver and the time synchronization code, where the time synchronization code corresponds to the interleaver;
- the sending device obtains time-frequency resources to be used by the data and information of all available interleavers, including:
- the transmitting device acquires time-frequency resources used by the to-be-sent data by using a system broadcast message, a dedicated signaling, or according to a pre-configuration;
- the sending device acquires information of an interleaver used by the to-be-sent data by using a system broadcast message, a dedicated signaling, or according to a pre-configuration.
- the selecting, according to the information of the interleaver, the time synchronization code and the interleaver for the data to be sent includes: according to the identifier information and the location of the sending device The information of the interleaver selects a time synchronization code and an interleaver, and the identification information of the transmitting device corresponds to a unique interleaver and a time synchronization code.
- the identifier information of the sending device is included in the to-be-sent data.
- the identifier information includes a temporary identifier of a cell wireless network of the sending device.
- a media access layer control MAC address obtained by the sending device and the receiving device in the process of establishing a connection, the time information of the to-be-sent data, and the fixed time-frequency resource identifier used by the to-be-sent data One or more.
- the data to be sent further includes a guard time interval.
- a method for data transmission including:
- the interleaver corresponding to the time synchronization code is used to deinterleave the transmission data according to the information of the preset interleaver, where the information of the interleaver includes a correspondence between an interleaver and a time synchronization code, where the time synchronization code and the interleaver --correspond.
- the receiving device receives, on the preset time-frequency resource, the interleaved transmission with the time synchronization code sent by the sending device.
- the sending device receives, on the preset time-frequency resource, the interleaved transmission with the time synchronization code sent by the sending device.
- the receiving device notifies the sending device of the time-frequency resource allocated to the sending device by using a system broadcast message or a dedicated signaling notification;
- the receiving device notifies the transmitting device of the information of the interleaver through a system broadcast message or a dedicated signaling.
- the identifier information of the sending device corresponds to a unique interleaver and a time synchronization code
- the method further includes: determining, by the receiving device, the sending corresponding to the sending data according to the identifier information of the sending device device.
- the identifier information includes a cell radio network temporary identifier C-RNT I of the sending device, and the sending device and the receiving The media access layer control MAC address obtained during the connection establishment process of the device, the time information of the sent data, and one or more of the fixed time-frequency resource identifiers used by the sending data
- the method further includes:
- the received next transmission data is deinterleaved after the guard time interval.
- a sending device including:
- An acquiring unit configured to acquire time-frequency resources used by the data to be transmitted and information of the interleaver, where the information of the interleaver includes a correspondence between the interleaver and the time synchronization code, where the time synchronization code corresponds to the interleaver;
- a configuration unit configured to select, according to the information about the interleaver acquired by the acquiring unit, a time synchronization code and an interleaver for the data to be sent;
- a sending unit configured to perform interleaving processing on the to-be-transmitted data by using an interleaver selected by the configuration unit, to perform interleaving to be sent with the selected time synchronization code
- the data is sent to the receiving device on the time-frequency resource acquired by the acquiring unit.
- the acquiring unit is specifically configured to:
- the information of the interleaver used by the data to be transmitted is obtained through a system broadcast message, a dedicated signaling notification, or according to a pre-configuration.
- the configuration unit is specifically configured to: select a time synchronization code and an interleaver according to the identifier information of the sending device and the information of the interleaver sent by the acquiring unit, where the identifier information of the sending device corresponds to a unique interleaver and Time synchronization code.
- the identifier information of the sending device is included in the to-be-sent data.
- the identifier information includes a cell wireless network temporary identifier of the sending device
- a media access layer control MAC address obtained by the sending device and the receiving device in the process of establishing a connection, the time information of the to-be-sent data, and the fixed time-frequency resource identifier used by the to-be-sent data One or more.
- the data to be sent further includes a guard time interval.
- a receiving device including:
- a receiving unit configured to receive, on the preset time-frequency resource, the sending data that is sent by the sending device and has a time synchronization code
- a deinterleaving unit configured to: according to the information of the preset interleaver, invoke an interleaver corresponding to the time synchronization code to deinterleave the transmission data received by the receiving unit, where the information of the interleaver includes an interleaver and a time synchronization Correspondence of codes, wherein the time synchronization code corresponds to the interleaver.
- the receiving device is further The method includes: a sending unit, configured to notify, by using a system broadcast message, or a dedicated signaling, to notify, by the sending device, a time-frequency resource allocated to the sending device;
- the information of the interleaver is notified to the transmitting device by a system broadcast message, or a dedicated signaling.
- the receiving device further includes: an identifying unit,
- the deinterleaving unit is further configured to: The received next transmission data is deinterleaved after the guard interval.
- a fifth aspect provides a transmitting device, including: at least one processor, a memory, a transmitter, and a bus, wherein the at least one processor, the memory, and the transmitter are connected by a bus and complete communication with each other, and the memory is used for And storing the program code, where: the processor is configured to acquire time-frequency resources used by the data to be transmitted and information of the interleaver, where the information of the interleaver includes a correspondence between the interleaver and the time synchronization code, where the time synchronization code and the interlace Device - corresponding
- the processor is configured to select a time synchronization code and an interleaver for the to-be-transmitted data according to the information of the interleaver;
- the processor is configured to perform interleaving processing on the data to be sent by using a selected interleaver, and pass the interleaved data to be sent with the selected time synchronization code on the time-frequency resource.
- the transmitter is sent to the receiving device.
- the sending device further includes a receiver connected to the bus, where the processor is specifically configured to:
- the processor is specifically configured to select a time synchronization code and an interleaver according to the identifier information of the sending device and the information of the interleaver, where the identifier information of the sending device corresponds to a unique interleaver and a time synchronization code.
- the identifier information of the sending device is included in the to-be-sent data.
- the identifier information includes a cell wireless network temporary identifier of the sending device
- the data to be sent further includes a guard time interval.
- a sixth aspect provides a receiving device, including: at least one processor, a memory, a receiver, and a bus, wherein the at least one processor, the memory, and the receiver are connected by a bus and complete communication with each other, the memory being used for And storing the program code, where: the receiver is configured to receive, on a preset time-frequency resource, the sending data that is sent by the sending device and has a time synchronization code;
- the processor is configured to: according to the information of the preset interleaver, invoke an interleaver corresponding to the time synchronization code to deinterleave the transmission data, where the information of the interleaver includes a correspondence between an interleaver and a time synchronization code, where , time synchronization code and interleaver - corresponding.
- the receiving device further includes a transmitter connected to the bus, where the transmitter is configured to:
- the processor is further configured to: when the sending data includes the identifier information of the sending device, determine, according to the identifier information of the sending device, The sending device corresponding to the data to be sent.
- the processor further uses the protection when the sending data further includes a guard time interval. After the time interval, the received next transmission data is deinterleaved.
- a data transmission system including any of the foregoing transmission devices, and any of the foregoing receiving devices.
- the data transmission method, device and system provided by the embodiments of the present invention perform data transmission by selecting a time synchronization code and a corresponding interleaver for data to be transmitted, and do not need to first establish an inter-device by requesting resources in each data transmission process.
- Link synchronization which realizes unauthorized data transmission, effectively reduces signaling overhead, improves transmission efficiency, and reduces time delay.
- FIG. 1 is a schematic flowchart of a data transmission method according to an embodiment of the present invention
- FIG. 2 is a schematic flowchart of another data transmission method according to an embodiment of the present invention
- FIG. 3 is a schematic flow chart of a data transmission method according to another embodiment of the present invention.
- FIG. 4 is a schematic structural diagram of an I DMA system according to an embodiment of the present invention
- FIG. 5 is a schematic structural diagram of a transmitting device according to an embodiment of the present invention
- FIG. 6 is a schematic structural diagram of a receiving device according to an embodiment of the present invention
- schematic diagram is a schematic structural diagram of a transmitting device according to another embodiment of the present invention
- FIG. 8 is a schematic structural diagram of a receiving device according to another embodiment of the present invention
- FIG. 9 is a schematic diagram of a receiving device according to an embodiment of the present invention
- Embodiments of the present invention can be applied to include IDMA (interleave-division multiple-access), IDMA+0FDM (IDMA+or thogona 1 frequency division multiplexing, interleaved division multiple access and orthogonal frequency division multiplexing), IDMA + OFDMA (IDMA + Or thogona 1 Frequency Division Multiple Access Interleaved Multiple Access and Orthogonal Frequency Division Multiple Access) or IDMA + SC-FDMA (IDMA + Single-carrier Frequency-Division Multiple Access) Single-carrier frequency division multiple access)
- IDMA interleave-division multiple-access
- IDMA+0FDM IDMA+or thogona 1 frequency division multiplexing, interleaved division multiple access and orthogonal frequency division multiplexing
- IDMA + OFDMA IDMA + Or thogona 1 Frequency Division Multiple Access Interleaved Multiple Access and Orthogonal Frequency Division Multiple Access
- IDMA + SC-FDMA IDMA +
- the data transmission method provided by the embodiment of the present invention can be applied to M2M small data packet transmission in LTE.
- the method can also be applied to other systems such as LTE-a.
- the following steps are included:
- the sending device acquires time-frequency resources used by the data to be sent and information of the interleaver, where the information of the interleaver includes a correspondence between the interleaver and the time synchronization code, where the time synchronization code corresponds to the interleaver.
- the transmitting device selects a time synchronization code and an interleaver for the to-be-sent data according to the information of the interleaver.
- the interleaver or time synchronization code is randomly configured for the transmitting device, There is a time synchronization code and an interleaver between the time synchronization code and the interleaver - corresponding to the corresponding relationship, so in step 102, it can be considered that the transmitting device first configures the time synchronization code or configures the interleaver first, as long as two are determined.
- the transmitting device first configures the time synchronization code or configures the interleaver first, as long as two are determined.
- One of the other conveniences can be determined based on the correspondence, and thus the present invention is not limited thereto.
- the transmitting device performs interleaving processing on the data to be sent by using the selected interleaver, and sends the interleaved data to be sent with the selected time synchronization code to the receiving device on the time-frequency resource. .
- step 103 is through a universal encoder (ENC, encoder) (the universal encoder can be a forward error correction encoder (FEC), a spreader s reader, or both.
- the coded data is encoded by the selected interleaver and sent to the receiving device by the selected interleaver.
- the encoding mode is not limited in the prior art, and may be the encoding mode preset by the sending device or the encoding sent by the receiving device.
- the method includes: QPSK (Quadature Phase Shift Keying) coding, l/3 Turbo coding, and the like.
- the receiving device receives the sending data with the time synchronization code sent by the sending device on the preset time-frequency resource.
- the receiving device invokes an interleaver corresponding to the time synchronization code to deinterleave the sending data, where the information of the interleaver includes a correspondence between an interleaver and a time synchronization code, where time synchronization The code corresponds to the interleaver.
- the data transmission method provided by the embodiment of the present invention performs data transmission by selecting a time synchronization code and a corresponding interleaver for data to be transmitted, and does not need to first establish link synchronization between devices by requesting resources in each data transmission process, and further Unauthorized data transmission is realized, which effectively reduces signaling overhead, improves transmission efficiency, and reduces time delay.
- the embodiment of the present invention provides an IDMA architecture as shown in FIG. 3, where the transmitting device at the data transmitting end passes.
- a universal encoder (ENC) and interleaver for each user data ie data sent by each transmitting device, figure
- the first user signal to the kth user signal are encoded and interleaved, and are multiplexed into the signal r by the access channel and then transmitted to the receiving device.
- the receiving device includes a basic signal estimator (ESE), a set of deinterleaver 1 and a set of single-user maximum posterior probability (AP, a posteriori) decoders (DEC, decoder Constituting, each deinterleaver and each decoder is responsible for the deinterleaving and decoding work of a corresponding user (sending device).
- ESE basic signal estimator
- AP a posteriori
- DEC decoder Constituting
- the sending device acquires time-frequency resources used by the data to be sent and information of the interleaver, where the information of the interleaver includes a correspondence between the interleaver and the time synchronization code, where the time synchronization code corresponds to the interleaver.
- the step 301 includes: the sending device acquires a time-frequency resource used by the to-be-sent data by using a system broadcast message, a dedicated signaling, or according to a pre-configuration; the sending device broadcasts a message through the system.
- the information of the interleaver used by the to-be-sent data is obtained by signaling, or according to a pre-configuration.
- the sending device acquires time-frequency resources and information of the interleaver allocated to the sending device by using a system broadcast message.
- the sending device receives a dedicated signaling notification, where the dedicated signaling notification includes information of a time-frequency resource and an interleaver allocated for the sending device.
- the sending device acquires the information of the pre-configured interleaver and selects the time-frequency resource used by the to-be-sent data in the preset time-frequency resource.
- the sending device acquires a time-frequency resource allocated to the sending device in a system broadcast message, and receives a dedicated signaling notification, where the dedicated signaling notification includes information of an interleaver allocated for the sending device.
- the sending device acquires information about an interleaver allocated to the sending device in a system broadcast message, and receives a dedicated signaling, where the dedicated signaling is included in the packet Contains time-frequency resources allocated for the transmitting device.
- the sending device acquires the information of the pre-configured interleaver, and acquires the time-frequency resource allocated to the sending device in the system broadcast.
- the transmitting device selects the time-frequency resource used by the to-be-sent data in the preset time-frequency resource, and acquires the information of the interleaver allocated to the sending device in the system broadcast message.
- the transmitting device acquires information of an interleaver that is pre-configured by itself, and receives a dedicated signaling notification, where the dedicated signaling notification includes information of the interleaver allocated for the transmitting device.
- the time-frequency resource used by the to-be-sent data is selected in the preset time-frequency resource, and the dedicated signaling notification is received, where the dedicated signaling notification includes information about the interleaver allocated for the sending device.
- the receiving device notifies the sending device of the time-frequency resource allocated to the sending device by using a system broadcast message or a dedicated signaling; the receiving device sends the message to the sending by using a system broadcast message or a dedicated signaling The device notifies the information of the interleaver.
- the sending data may be sent in the form of time synchronization code + data.
- the data to be transmitted also includes a guard time interval, and the time synchronization code may be used at this time.
- +Data + protection time interval GT character format for data transmission refer to the following table 1: Time synchronization code GT
- the time synchronization code is randomly selected by the transmitting device, and the data transmission protection time character (G T , g ua r d t i me ) is added to avoid interference on the receiving device side to receive the next frame data.
- the correspondence reflected by the table 2 can be broadcasted as an interleaver information to the transmitting device through the receiving device, or by dedicated signaling, or preset on the transmitting device side.
- the sending device selects a time synchronization code and an interleaver for the to-be-sent data according to the information of the interleaver.
- the interleaver or the time synchronization code is randomly configured for the transmitting device. Since the time synchronization code and the interleaver have a corresponding relationship between the time synchronization code and the interleaver, the transmitting device can be considered as the first in step 302.
- the time synchronization code may be configured or the interleaver may be configured first. As long as one of the two is determined, the other convenience may be determined according to the correspondence, and thus the present invention is not limited thereto.
- the identifier information of the sending device is included in the to-be-sent data.
- the identifier information of the sending device corresponds to a unique interleaver and a time synchronization code, where the identifier information includes a cell radio network temporary identifier C-RNTI (Cellular Network Temporary Identifier) of the sending device;
- C-RNTI Cellular Network Temporary Identifier
- the medium access layer control MAC Media Access Control
- the time information of the data to be sent may include a subframe, a radio frame, a time slot, etc.;
- the data may be sent.
- Setting the identifier information of the corresponding sending device in the sending data where the identifier information may be the identifier information set in the first 16 bits of the data to be sent, so that the receiving device according to the
- the to-be-sent data includes the identification information of the sending device. Since the identification information of each sending device is different, each transmitting device may select differently for the sending device according to the identification information of the sending device during the data sending process.
- the time synchronization code and the interleaver are therefore equivalent to the identifier of the interleaver and the time synchronization code selected by the transmitting device and the identification information of the transmitting device.
- the identification information of the transmitting device is unique and different, so When the transmitting end selects the interleaver and the time synchronization code according to the sending device identification information, it is determined that different transmitting devices in the same cell transmit data through different interleavers, thereby avoiding collision when data is transmitted.
- the data to be sent may not include the identifier information of the sending device, but only the time synchronization code and the interleaver are selected according to the identifier information of the sending device, so that different sending devices select different ones.
- the interleaver performs data interleaving processing, so that collisions during data transmission can be well avoided; only when the data to be transmitted includes the identification information of the transmitting device, the receiving device can identify the receiving device according to the identification information.
- the identifier of the interleaver and the time synchronization code that can be selected by the sending device can be set to correspond to the set of the identification information of the sending device, and the device identifier of the sending device is assumed to be the identifier of the corresponding time synchronization code.
- M 3 2
- the identification is 5, 3 7, 6 9 transmission
- the corresponding interleaver can be determined on the receiving device side according to s, and then the corresponding transmitting device is determined according to k, thereby avoiding collision of data.
- the sending device performs interleaving processing on the data to be sent by using the selected interleaver, and sends the interleaved data to be sent with the selected time synchronization code to the receiving device on the time-frequency resource. .
- step 303 is to encode the data to be transmitted by a universal encoder (ENC) (which can be a forward error correction coder (FEC), a spreader, or a cascade of both). Then, the interleaving process is performed by the selected interleaver to be sent to the receiving device, where the modulation and coding mode is not specifically limited in the prior art, and may be the encoding mode preset by the sending device or the encoding mode sent by the receiving device. Including: QP SK coding, l / 3 Tu r bo coding, etc.
- the receiving device receives the sending data with the time synchronization code sent by the sending device on the preset time-frequency resource.
- the receiving device invokes an interleaver corresponding to the time synchronization code to deinterleave the sending data, where the information of the interleaver includes a correspondence between an interleaver and a time synchronization code, where time synchronization The code corresponds to the interleaver.
- the method further includes the following steps:
- the receiving device determines, according to the identifier information of the sending device, the sending device corresponding to the sending data.
- the receiving device performs deinterleave processing on the received next transmission data after the guard time interval.
- the data transmission method provided by the embodiment of the present invention performs data transmission by selecting a time synchronization code and a corresponding interleaver for data to be transmitted, and does not need to first establish link synchronization between devices by requesting resources in each data transmission process, and further
- the non-authorized data transmission is implemented, which effectively reduces the signaling overhead, improves the transmission efficiency and reduces the time delay.
- the to-be-sent data includes the identification information of the transmitting device
- the receiving device side can pass different interleaving. The device identifies the data of different transmitting devices and performs corresponding deinterleaving processing, which reduces the possibility of collision during data transmission.
- Embodiments of the present invention provide a transmitting device, based on an I DMA architecture or an I DMA shape
- the hybrid device is configured to implement the data transmission method provided in the foregoing method embodiment, where the sending device can be a mobile terminal, such as a mobile phone, a palmtop computer, or other networked user equipment, such as a personal computer or an enterprise server.
- the transmitting device 5 includes: an obtaining unit 5 1 , a configuration unit 5 2 , and a sending unit 5 3 ;
- the acquiring unit 5 1 is configured to acquire time-frequency resources used by the data to be transmitted and information of the interleaver, where the information of the interleaver includes a correspondence between the interleaver and the time synchronization code, where the time synchronization code corresponds to the interleaver ;
- the obtaining unit 51 is specifically configured to: acquire, by using a system broadcast message, a dedicated signaling, or according to a pre-configuration, a time-frequency resource used by the to-be-sent data; by using a system broadcast message, a dedicated signaling, or Obtaining information of the interleaver used by the to-be-sent data according to pre-configuration.
- the configuration unit 52 is configured to select a time synchronization code and an interleaver for the to-be-sent data according to the information of the interleaver acquired by the acquiring unit 51;
- the optional configuration unit 52 is specifically configured to: select a time synchronization code or an interleaver according to the identifier information of the sending device, where the identifier information of the sending device corresponds to a unique interleaver and a time synchronization code, where the identifier information includes a cell radio network temporary identifier C-RNT I of the transmitting device, a media access layer control MAC address obtained by the sending device and the receiving device, and a time information of the to-be-sent data, the to-be-sent data One or more of the fixed time-frequency resource identifiers used.
- the time synchronization code or the interleaver is selected according to the identification information of the sending device on the transmitting device side, so that different transmitting devices select different interleavers for data interleaving, so that collisions during data transmission can be well avoided.
- the sending unit 53 is configured to perform interleaving processing on the data to be sent by using an interleaver selected by the configuration unit 52, and the interleaved data to be sent with the selected time synchronization code is in the acquiring unit 5 1
- the obtained time-frequency resource is sent to the receiving device.
- the sending device performs data transmission by selecting a time synchronization code and a corresponding interleaver for data to be transmitted, and does not have to send data every time.
- the process first establishes link synchronization between devices by requesting resources, thereby implementing unauthorised data transmission, effectively reducing signaling overhead, improving transmission efficiency and reducing time delay.
- the identifier of the sending device is included in the to-be-transmitted data; thus, the data of different sending devices can be identified by different interleavers on the receiving device side, and corresponding de-interleaving processing is performed, thereby reducing data transmission. The possibility of a collision in the process.
- the data to be sent also includes a data transmission protection time character.
- the receiving device performs deinterleaving processing on the received next to-be-sent data after the protection time indicated by the data transmission protection time character, thereby avoiding interference to the next frame.
- the embodiment of the present invention provides a receiving device, which is based on an I DMA or an I DMA, and is configured to implement the data transmission method provided in the foregoing method embodiment.
- the receiving device includes: The base station, and the small network transceiver node in the closed user group, as shown in FIG. 6, the receiving device 6 includes: a receiving unit and a de-interleaving unit 62, wherein
- the receiving unit 6 1 is configured to receive, on the preset time-frequency resource, the sending data that is sent by the sending device and that is sent with the time synchronization code;
- the deinterleaving unit 62 is configured to, according to the information of the preset interleaver, invoke an interleaver corresponding to the time synchronization code to deinterleave the transmission data received by the receiving unit 61, where the information of the interleaver includes an interleaver Correspondence with the time synchronization code, wherein the time synchronization code corresponds to the interleaver.
- the receiving device further includes a sending unit 60, and the sending unit 60 notifies the sending device of the time frequency allocated to the sending device by using a system broadcast message or a dedicated signaling notification.
- the information of the interleaver is notified to the transmitting device by a system broadcast message, or a dedicated signaling.
- the receiving device provided by the embodiment of the present invention, by receiving the data to be sent sent by the sending device and having the time synchronization code corresponding to the interleaver, does not need to first request the resource through the sending device to establish the device between each data transmission process.
- Link synchronization, advance The non-authorized data transmission is implemented, which effectively reduces the signaling overhead, improves the transmission efficiency, and reduces the time delay.
- the receiving device further includes: an identifying unit 63, configured to: when the identifier information of the sending device is included in the to-be-sent data, determine the identifier according to the identifier information of the sending device Send the sending device corresponding to the data.
- the data of different transmitting devices can be identified by different interleavers on the receiving device side, and the corresponding de-interleaving processing is performed, thereby reducing the possibility of collision in the data transmission process.
- the sending data further includes a guard time interval.
- the deinterleaving unit 62 is further configured to perform deinterleaving processing on the received next transmission data after the guard time interval, thus avoiding interference to the next frame.
- An embodiment of the present invention provides a transmitting device, as shown in FIG. 7, comprising: at least one processor 71, a memory 72, a transmitter 73, and a bus 74, and the at least one processor 71, the memory 72, and the transmitter 73 pass
- the bus 74 connects and completes communication with each other, and the memory 72 is used to store program codes, wherein:
- the bus 74 can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Indus try Standard Architecture (EISA). ) Bus, etc.
- ISA Industry Standard Architecture
- PCI Peripheral Component
- EISA Extended Indus try Standard Architecture
- the bus 74 can be divided into an address bus, a bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 7, but it does not mean that there is only one bus or one type of bus. among them:
- Memory 72 is for storing executable program code, the program code including computer operating instructions.
- Memory 72 may contain high speed RAM memory and may also include non-volatile memory, such as at least one disk memory.
- the processor 71 may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or one or more configured to implement the embodiments of the present invention. Integrated circuits.
- the transmitter 73 is mainly used to implement communication between the transmitting device and the receiving device of the embodiment.
- the processor 71 is further configured to call the program code in the memory 72 to perform the following operations:
- the processor 71 is configured to acquire time-frequency resources used by the data to be transmitted and information of the interleaver, where the information of the interleaver includes a correspondence between the interleaver and the time synchronization code, where the time synchronization code and the interleaver correspond to each other. ;
- the processor 71 is configured to select a time synchronization code and an interleaver for the to-be-sent data according to the information of the interleaver;
- the processor 71 is configured to perform interleaving processing on the data to be sent by using a selected interleaver, and pass the interleaved data to be sent with the selected time synchronization code on the time-frequency resource.
- the transmitter 73 is sent to the receiving device.
- the sending device performs data transmission by selecting a time synchronization code and a corresponding interleaver for data to be sent, and does not need to first establish link synchronization between devices by requesting resources in each data transmission process. Unauthorized data transmission effectively reduces signaling overhead, improves transmission efficiency, and reduces time delay.
- the sending device further includes a receiver 75 connected to the bus, where the processor 71 is specifically configured to:
- the information of the interleaver used by the to-be-sent data is obtained by a system broadcast message received by the receiver 75, a dedicated signaling notification received by the receiver 75, or pre-configured according to the processor 71.
- the processor 71 is specifically configured to select a time synchronization code and an interleaver according to the identifier information of the sending device and the information of the interleaver, where the identifier information of the sending device corresponds to a unique interleaver and time. Synchronization code.
- the identifier information includes a cell radio network temporary identifier C-RNTI of the sending device, and the sending device and the And the receiving device establishes one or more of a medium access layer control MAC address, a time information of the to-be-sent data, and a fixed time-frequency resource identifier used by the to-be-sent data.
- the time synchronization code or the interleaver is selected according to the identification information of the sending device on the sending device side, so that different transmitting devices select different interleavers for data interleaving processing, so that collisions during data transmission can be well avoided.
- the identifier of the sending device is included in the to-be-transmitted data; thus, the data of different sending devices can be identified by different interleavers on the receiving device side, and corresponding de-interleaving processing is performed, thereby reducing data transmission. The possibility of a collision in the process.
- the to-be-sent data further includes a guard time interval.
- the receiving device performs deinterleaving on the received next to-be-sent data after the guard time interval, thereby avoiding interference to the next frame.
- An embodiment of the present invention provides a receiving device, including: at least one processor 81, a memory 82, a receiver 83, and a bus 84.
- the at least one processor 81, the memory 82, and the receiver 83 are connected by a bus 84 and complete each other.
- the memory 82 is used to store program code, wherein:
- the bus 84 can be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Indus try Standard Architecture (EISA). ) Bus, etc.
- ISA Industry Standard Architecture
- PCI Peripheral Component
- EISA Extended Indus try Standard Architecture
- the bus 84 can be divided into an address bus, a bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus. among them:
- Memory 82 is for storing executable program code, the program code including computer operating instructions.
- the memory 82 may include a high speed RAM memory and may also include a non-volatile memory such as at least one disk memory.
- the processor 81 may be a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or configured to implement the present invention. One or more integrated circuits of an embodiment.
- CPU Central Processing Unit
- ASIC Application Specific Integrated Circuit
- the receiver 8 3 is mainly used to implement communication between the transmitting device and the receiving device of the embodiment.
- the processor 8 1 is also used to call the program code in the memory 82 to perform the following operations:
- the receiver 8 3 is configured to receive, on the preset time-frequency resource, the sending data that is sent by the sending device and has a time synchronization code;
- the processor 8 1 is configured to, according to the information of the preset interleaver, invoke an interleaver corresponding to the time synchronization code to deinterleave the sending data, where the information of the interleaver includes a correspondence between an interleaver and a time synchronization code, where , time synchronization code and interleaver - corresponding.
- the receiving device further includes a transmitter 85 connected to the bus 84, where the transmitter 85 is configured to notify the sending device of the time frequency allocated to the sending device by using a system broadcast message or a dedicated signaling notification.
- a transmitter 85 connected to the bus 84, where the transmitter 85 is configured to notify the sending device of the time frequency allocated to the sending device by using a system broadcast message or a dedicated signaling notification.
- the information of the interleaver is notified to the transmitting device by a system broadcast message, or a dedicated signaling.
- the receiving device provided by the embodiment of the present invention, by receiving the data to be sent sent by the sending device and having the time synchronization code corresponding to the interleaver, does not need to first request the resource through the sending device in each data transmission process.
- the synchronization between the links enables unauthorised data transmission, which effectively reduces the signaling overhead, improves the transmission efficiency and reduces the time delay.
- the processor 8 1 is further configured to: when the identifier data of the sending device is included in the to-be-sent data, determine, according to the identifier information of the sending device, the sending device corresponding to the sending data.
- the data of different transmitting devices can be identified by different interleavers on the receiving device side, and the corresponding de-interleaving processing is performed, thereby reducing the possibility of collision in the data transmission process.
- the processor 8 1 is further configured to perform deinterleaving processing on the received next sending data after the guard time interval, thereby avoiding the next step. Frame interference.
- the embodiment of the present invention provides a data transmission system 9 for implementing the data transmission method provided by the foregoing method, including the receiving device 9 1 and the transmitting device 92 provided by the foregoing embodiments.
- the data transmission system performs data transmission by selecting a fixed time synchronization code and a corresponding interleaver for data to be transmitted, and does not need to establish link synchronization between devices by requesting resources in each process of data transmission.
- the non-authorized data transmission is implemented, which effectively reduces the signaling overhead, improves the transmission efficiency, and reduces the time delay.
- the receiving device can pass the Different interleavers recognize the data of different transmitting devices and perform corresponding deinterleaving processing, which reduces the possibility of collision during data transmission.
Abstract
Description
Claims
Priority Applications (6)
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EP13884435.2A EP2988546A4 (en) | 2013-05-16 | 2013-05-16 | DATA TRANSMISSION PROCESS, DEVICE AND SYSTEM |
KR1020157035297A KR20160007644A (ko) | 2013-05-16 | 2013-05-16 | 데이터 송신 방법, 디바이스 및 시스템 |
PCT/CN2013/075715 WO2014183291A1 (zh) | 2013-05-16 | 2013-05-16 | 一种数据的传输方法、设备及系统 |
JP2016513195A JP2016523050A (ja) | 2013-05-16 | 2013-05-16 | データ伝送の方法、装置およびシステム |
CN201380002654.1A CN104380790B (zh) | 2013-05-16 | 2013-05-16 | 一种数据的传输方法、设备及系统 |
US14/941,187 US10321422B2 (en) | 2013-05-16 | 2015-11-13 | Data transmission method, device, and system |
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US (1) | US10321422B2 (zh) |
EP (1) | EP2988546A4 (zh) |
JP (1) | JP2016523050A (zh) |
KR (1) | KR20160007644A (zh) |
CN (1) | CN104380790B (zh) |
WO (1) | WO2014183291A1 (zh) |
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WO2019244885A1 (ja) * | 2018-06-21 | 2019-12-26 | 株式会社横須賀テレコムリサーチパーク | 送受信方法、および送受信システム |
CN112398532A (zh) * | 2019-08-16 | 2021-02-23 | 索尼公司 | 通信设备、通信方法和通信程序 |
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CN107508652A (zh) * | 2016-06-14 | 2017-12-22 | 索尼公司 | 用于交织多址接入通信的电子设备和方法 |
KR102332985B1 (ko) * | 2019-06-07 | 2021-12-31 | 주식회사 퍼스트팔콘 | 다중 무선 통신 시스템 및 그 방법 |
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- 2013-05-16 KR KR1020157035297A patent/KR20160007644A/ko not_active Application Discontinuation
- 2013-05-16 EP EP13884435.2A patent/EP2988546A4/en not_active Withdrawn
- 2013-05-16 JP JP2016513195A patent/JP2016523050A/ja active Pending
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Also Published As
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US20160073368A1 (en) | 2016-03-10 |
EP2988546A4 (en) | 2016-06-01 |
KR20160007644A (ko) | 2016-01-20 |
US10321422B2 (en) | 2019-06-11 |
CN104380790A (zh) | 2015-02-25 |
CN104380790B (zh) | 2019-04-19 |
JP2016523050A (ja) | 2016-08-04 |
EP2988546A1 (en) | 2016-02-24 |
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