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 PDF

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Publication number
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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WO
WIPO (PCT)
Prior art keywords
interleaver
data
sending device
sent
synchronization code
Prior art date
Application number
PCT/CN2013/075715
Other languages
English (en)
French (fr)
Inventor
吕永霞
张雯
汲桐
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP13884435.2A priority Critical patent/EP2988546A4/en
Priority to KR1020157035297A priority patent/KR20160007644A/ko
Priority to PCT/CN2013/075715 priority patent/WO2014183291A1/zh
Priority to JP2016513195A priority patent/JP2016523050A/ja
Priority to CN201380002654.1A priority patent/CN104380790B/zh
Publication of WO2014183291A1 publication Critical patent/WO2014183291A1/zh
Priority to US14/941,187 priority patent/US10321422B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • H04W56/001Synchronization between nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0071Use of interleaving
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/27Coding, 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M13/00Coding, 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
    • H03M13/27Coding, 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
    • H03M13/2771Internal interleaver for turbo codes
    • H03M13/2775Contention or collision free turbo code internal interleaver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0041Arrangements at the transmitter end
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters
    • H04W28/20Negotiating bandwidth
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control 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

本发明的实施例公开一种数据传输的方法、设备及系统,应用于通讯领域,能够提高数据的传输效率降低时间延迟。该方法包括:发送设备获取待发送数据使用的时频资源及交织器的信息,所述交织器的信息包括交织器与时间同步码的对应关系,其中,时间同步码与交织器一一对应;根据所述交织器的信息为所述待发送数据选择时间同步码及交织器;通过所述选择的交织器对所述待发送数据进行交织处理,将带有所述选择的时间同步码的经交织后的待发送数据在所述时频资源上发送至接收设备。本发明的是实例应用于数据传输。

Description

一种数据的传输方法、 设备及系统
技术领域
本发明涉及通讯领域, 尤其涉及一种数据的传输方法、 设备及 系统。 背景技术
在目前的 LTE ( Long Term Evolut ion, 长期演进) 中, 釆用基 于连接的方式传输数据, 而对于 M2M ( Machine to Machine, 设备 对设备) 小数据包而言, 现有技术需要每次都建立链接取得同步后 才传输数据, 即在进行数据传输之前, 数据交换的设备需要先进行 链接建立然后开始数据传输, 在该过程中涉及到包括 15条信令和 1 个数据包的信息交互。
在以上的数据传输过程中, 现有技术中, 由于数据传输准备过 程中 (及链接建立的同步处理过程中 ), 需要大量的信令交互, 因此 不适合海量设备的小数据包传输的情况, 其存在传输效率低下、 延 时严重的问题。 发明内容
本发明的实施例提供一种数据传输的方法、 设备及系统, 能够 降低信令开销, 提高数据的传输效率降低时间延迟。
为达到上述目的, 本发明的实施例釆用如下技术方案:
一方面, 提供一种数据传输的方法, 包括:
发送设备获取待发送数据使用的时频资源及交织器的信息, 所 述交织器的信息包括交织器与时间同步码的对应关系, 其中, 时间 同步码与交织器——对应;
根据所述交织器的信息为所述待发送数据选择时间同步码及交 织器;
通过所述选择的交织器对所述待发送数据进行交织处理, 将带 有所述选择的时间同步码的经交织后的待发送数据在所述时频资源 上发送至接收设备。
在第一种可能的实现方式中, 结合第一方面, 所述发送设备获 取待数据使用的时频资源及所有可用交织器的信息, 包括:
所述发送设备通过系统广播消息、 专用信令通知、 或者根据预 先配置, 获取所述待发送数据使用的时频资源;
所述发送设备通过系统广播消息、 专用信令通知、 或者根据预 先配置, 获取所述待发送数据使用的交织器的信息。
在第二种可能的实现方式中, 结合第一方面, 所述根据所述交 织器的信息为所述待发送数据选择时间同步码及交织器, 包括: 根据所述发送设备的标识信息及所述交织器的信息选择时间同 步码及交织器, 所述发送设备的标识信息对应唯一的交织器及时间 同步码。
在第三种可能的实现方式中, 结合第二种可能的实现方式, 在 所述待发送数据中包含所述发送设备的标识信息。
在第四种可能的实现方式中, 结合第二种或第三种可能的实现 方式, 所述标识信息包括所述发送设备的小区无线网络临时标识
C-RNT I , 所述发送设备与所述接收设备建立连接过程中获取的介质 访问层控制 MAC 地址, 所述待发送数据的时间信息, 所述待发送数 据使用的固定时频资源标识中的一种或多种。
在第五种可能的实现方式中, 结合第一方面及第一方面中任意 一种可能的实现方式, 所述待发送数据中还包括保护时间间隔。
第二方面, 提供一种数据传输的方法, 包括:
接收设备在预置的时频资源上接收发送设备发送的带有时间同 步码的发送数据;
根据预置的交织器的信息调用所述时间同步码对应的交织器解 交织所述发送数据, 所述交织器的信息包括交织器与时间同步码的 对应关系, 其中, 时间同步码与交织器——对应。
在第一种可能的实现方式中, 结合第二方面, 接收设备在预置 的时频资源上接收发送设备发送的经交织后并带有时间同步码的发 送数据之前, 包括:
所述接收设备通过系统广播消息, 或专用信令通知向所述发送 设备通知为所述发送设备分配的时频资源;
所述接收设备通过系统广播消息, 或专用信令通知向所述发送 设备通知所述交织器的信息。
在第二种可能的实现方式中, 结合第二方面, 所述待发送数据 中包含所述发送设备的标识信息时, 所述发送设备的标识信息对应 唯一的交织器及时间同步码;
所述根据预置的交织器信息调用所述时间同步码对应的交织器 解交织所述发送数据后, 还包括: 所述接收设备根据所述发送设备 的标识信息确定所述发送数据对应的发送设备。
在第三种可能的实现方式中, 结合第二结合第二种可能的实现 方式, 所述标识信息包括所述发送设备的小区无线网络临时标识 C-RNT I , 所述发送设备与所述接收设备建立连接过程中获取的介质 访问层控制 MAC 地址, 所述发送数据的时间信息, 所述发送数据使 用的固定时频资源标识中的一种或多种
在第四种可能的实现方式中, 结合第二方面及第二方面中任意 一种可能的实现方式, 所述发送数据中还包括保护时间间隔时, 所述方法还包括:
在所述保护时间间隔后对接收到的下一发送数据进行解交织处 理。
第三方面, 提供一种发送设备, 包括:
获取单元, 用于获取待发送数据使用的时频资源及交织器的信 息, 所述交织器的信息包括交织器与时间同步码的对应关系, 其中, 时间同步码与交织器——对应;
配置单元, 用于根据所述获取单元获取的所述交织器的信息为 所述待发送数据选择时间同步码及交织器;
发送单元, 用于通过配置单元选择的交织器对所述待发送数据 进行交织处理, 将带有所述选择的时间同步码的经交织后的待发送 数据在所述获取单元获取的所述时频资源上发送至接收设备。
在第一种可能的实现方式中, 结合第三方面, 所述获取单元具 体用于,
通过系统广播消息、 专用信令通知、 或者根据预先配置, 获取 所述待发送数据使用的时频资源;
通过系统广播消息、 专用信令通知、 或者根据预先配置, 获取 所述待发送数据使用的交织器的信息。
在第二种可能的实现方式中, 结合第三方面,
所述配置单元具体用于, 根据所述发送设备的标识信息及所述 获取单元发送的所述交织器的信息选择时间同步码及交织器, 所述 发送设备的标识信息对应唯一的交织器及时间同步码。
在第三种可能的实现方式中, 结合第二种可能的实现方式, 在所述待发送数据中包含所述发送设备的标识信息。
在第四种可能的实现方式中, 结合第二种或第三种可能的实现 方式,
所述标识信息包括所述发送设备的小区无线网络临时标识
C-RNT I , 所述发送设备与所述接收设备建立连接过程中获取的介质 访问层控制 MAC 地址, 所述待发送数据的时间信息, 所述待发送数 据使用的固定时频资源标识中的一种或多种。
在第五种可能的实现方式中, 结合第三方面及第三方面中任意 一种可能的实现方式, 所述待发送数据中还包括保护时间间隔。
第四方面, 提供一种接收设备, 包括:
接收单元, 用于在预置的时频资源上接收发送设备发送的带有 时间同步码的发送数据;
解交织单元, 用于根据预置的交织器的信息调用所述时间同步 码对应的交织器解交织所述接收单元接收到的所述发送数据, 所述 交织器的信息包括交织器与时间同步码的对应关系, 其中, 时间同 步码与交织器——对应。
在第一种可能的实现方式中, 结合第四方面, 所述接收设备还 包括: 发送单元, 用于通过系统广播消息, 或专用信令通知向所述 发送设备通知为所述发送设备分配的时频资源;
通过系统广播消息, 或专用信令通知向所述发送设备通知所述 交织器的信息。
在第二种可能的实现方式中, 结合第四方面, 所述接收设备还 包括: 识别单元,
用于在所述发送数据中包含所述发送设备的标识信息时, 根据 所述发送设备的标识信息确定所述发送数据对应的发送设备。
在第三种可能的实现方式中, 结合第四方面及第四方面中任意 一种可能的实现方式, 所述发送数据中还包括保护时间间隔时, 所述解交织单元还用于在所述保护时间间隔后对接收到的下一 发送数据进行解交织处理。
第五方面, 提供一种发送设备, 包括: 至少一个处理器、 存储 器、 发射器和总线, 所述至少一个处理器、 存储器和发射器通过总 线连接并完成相互间的通信, 所述存储器用于存储程序代码, 其中: 所述处理器用于获取待发送数据使用的时频资源及交织器的信 息, 所述交织器的信息包括交织器与时间同步码的对应关系, 其中, 时间同步码与交织器——对应;
所述处理器, 用于根据所述交织器的信息为所述待发送数据选 择时间同步码及交织器;
所述处理器, 用于通过选择的交织器对所述待发送数据进行交 织处理, 将带有所述选择的时间同步码的经交织后的待发送数据在 所述时频资源上通过所述发射器发送至接收设备。
在第一种可能的实现方式中, 结合第五方面, 所述发送设备还 包括与所述总线连接的接收器, 所述处理器具体用于,
通过所述接收器接收的系统广播消息、 所述接收器接收的专用 信令通知、 或者根据所述处理器预先配置, 获取所述待发送数据使 用的时频资源;
通过所述接收器接收的系统广播消息、 所述接收器接收的专用 信令通知、 或者根据所述处理器预先配置, 获取所述待发送数据使 用的交织器的信息。
在第二种可能的实现方式中, 结合第五方面,
所述处理器具体用于根据根据所述发送设备的标识信息及所述 交织器的信息选择时间同步码及交织器, 所述发送设备的标识信息 对应唯一的交织器及时间同步码。
在第三种可能的实现方式中, 结合第二种可能的实现方式, 在 所述待发送数据中包含所述发送设备的标识信息。
在第四种可能的实现方式中, 结合第二种或第三种可能的实现 方式,
所述标识信息包括所述发送设备的小区无线网络临时标识
C-RNT I , 或者所述发送设备与所述接收设备建立连接过程中获取的 介质访问层控制 MAC 地址, 或者所述待发送数据的时间信息, 或者 所述待发送数据使用的固定时频资源标识中的一种或多种。
在第五种可能的实现方式中, 结合第五方面及第五方面中任意 一种可能的实现方式, 所述待发送数据中还包括保护时间间隔。
第六方面, 提供一种接收设备, 包括: 至少一个处理器、 存储 器、 接收器和总线, 所述至少一个处理器、 存储器和接收器通过总 线连接并完成相互间的通信, 所述存储器用于存储程序代码, 其中: 所述接收器, 用于在预置的时频资源上接收发送设备发送的带 有时间同步码的发送数据;
所述处理器, 用于根据预置的交织器的信息调用所述时间同步 码对应的交织器解交织所述发送数据, 所述交织器的信息包括交织 器与时间同步码的对应关系, 其中, 时间同步码与交织器——对应。
在第一种可能的实现方式中, 结合第六方面, 所述接收设备还 包括与所述总线连接的发射器, 所发射器用于,
通过系统广播消息, 或专用信令通知向所述发送设备通知为所 述发送设备分配的时频资源;
通过系统广播消息, 或专用信令通知向所述发送设备通知所述 交织器的信息。
在第二种可能的实现方式中, 结合第六方面, 所述处理器, 还用于在所述发送数据中包含所述发送设备的标识信息时, 根 据所述发送设备的标识信息确定所述待发送数据对应的发送设备。
在第三种可能的实现方式中, 结合第六方面及第六方面中任意 一种可能的实现方式, 所述发送数据中还包括保护时间间隔时, 所述处理器还用于在所述保护时间间隔后对接收到的下一发送 数据进行解交织处理。
第七方面, 提供一种数据传输系统, 包括上述任一发送设备, 及上述任一接收设备。
本发明的实施例提供的数据传输方法、 设备及系统, 通过为待 发送的数据选择时间同步码及对应的交织器进行数据发送, 不必在 每次数据发送的过程首先通过请求资源建立设备间的链接同步, 进 而实现了非授权式的数据发送, 有效降低了信令的开销, 提高了传 输效率降低了时间延时。 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案, 下 面将对实施例或现有技术描述中所需要使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一些实施例, 对于 本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以 根据这些附图获得其他的附图。
图 1 为本发明的实施例提供的一种数据传输方法流程示意图; 图 2 为本发明的实施例提供的另一种数据传输方法流程示意 图;
图 3 为本发明的另一实施例提供的一种数据传输方法流程示意 图;
图 4为本发明的实施例提供的一种 I DMA 系统架构示意图; 图 5为本发明的实施例提供的一种发送设备结构示意图; 图 6为本发明的实施例提供的一种接收设备结构示意图; 图 7为本发明的另一实施例提供的一种发送设备结构示意图; 图 8为本发明的另一实施例提供的一种接收设备结构示意图; 图 9 为本发明的实施例提供的一种数据传输系统的结构示意 图。
具体实施方式
下面将结合本发明实施例中的附图, 对本发明实施例中的技术 方案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明 一部分实施例, 而不是全部的实施例。 基于本发明中的实施例, 本 领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他 实施例, 都属于本发明保护的范围。
本发明的实施例可以应用于包括 IDMA ( interleave-division multiple-access , 交织分多 址 )、 IDMA+0FDM ( IDMA+or thogona 1 frequency division multiplexing, 交织分多址及正交频分复用 )、 IDMA + OFDMA ( IDMA + Or thogona 1 Frequency Division Multiple Access 交织分多址及正交频分复用多址)或者 IDMA + SC-FDMA( IDMA + Single-carrier Frequency-Division Multiple Access, 交织分多 址及单载波频分多址) 等多址方式的数据发送格式, 即 IDMA 或者 IDMA与其他多址方式的混合方式, 当然本发明的实施例对此不做限 定, 以下釆用 IDMA多址方式为例进行说明, 本发明的实施例提供的 数据传输方法可以应用于 LTE 中 M2M小数据包传输, 当然该方法还 可以应用于 LTE-a等其他系统这里仅是以应用于 LTE为例进行说明 并不是作为限制, 在发送设备侧, 具体参照图 1 所示, 包括以下步 骤:
101、 发送设备获取待发送数据使用的时频资源及交织器的信 息, 所述交织器的信息包括交织器与时间同步码的对应关系, 其中, 时间同步码与交织器——对应。
102、发送设备根据所述交织器的信息为所述待发送数据选择时 间同步码及交织器。
当然这里交织器或者时间同步码是随机为发送设备配置的, 由 于时间同步码和交织器之间存在时间同步码与交织器——对应这一 对应关系, 因此在步骤 102 中可以认为发送设备先配置时间同步码 或者先配置交织器均可, 只要确定了两者中的一个另一方便可以根 据对应关系确定, 因此本发明在此不作限制。
103、发送设备通过所述选择的交织器对所述待发送数据进行交 织处理, 将带有所述选择的时间同步码的经交织后的待发送数据在 所述时频资源上发送至接收设备。
当然根据 IDMA 构架下, 步骤 103 是通过通用编码器 ( ENC, encoder ) ( 该通用编码器可以为前向纠错编码器 ( FEC, Forward Error Correct ion ), 扩频器 s reader 或二者的级联 ) 对待发送数 据进行编码后, 通过该选定的交织器发送至接收设备, 这里的编码 方式为现有技术不做具体限定, 当然可以为发送设备预设的编码方 式或者接收设备发送的编码方式, 具体包括: QPSK ( Quadrature Phase Shift Keying, 正交相移键控) 编码, l/3Turbo编码等。
在接收设备侧, 参照图 2所示, 包括以下步骤:
201、接收设备在预置的时频资源上接收发送设备发送的带有时 间同步码的发送数据。
202、接收设备根据预置的交织器的信息调用所述时间同步码对 应的交织器解交织所述发送数据, 所述交织器的信息包括交织器与 时间同步码的对应关系, 其中, 时间同步码与交织器——对应。
本发明的实施例提供的数据传输方法, 通过为待发送的数据选 择时间同步码及对应的交织器进行数据发送, 不必在每次数据发送 的过程首先通过请求资源建立设备间的链接同步, 进而实现了非授 权式的数据发送, 有效降低了信令的开销, 提高了传输效率降低了 时间延时。
以下结合, IDMA交织多址的复用技术方案对本发明的实施例提 供的技术方案进行说明, 首先本发明的实施例提供了如图 3所示的, IDMA构架,其中在数据发送端的发送设备通过一个通用编码器( ENC ) 及交织器 对于每一个用户数据(即每一个发送设备发送的数据, 图 中第一用户信号至第 k 用户信号) 进行编码以及交织处理, 通过对 接入通道复用为信号 r 后发送至接收设备。 在数据接收端, 接收设 备 包括一 个基本 的 信 号 估计 器 ( ESE , elementary signal estimator ), 一组解交织器 1及一组单用户最大后验概率 ( AP , a posteriori ) 译码器 ( DEC, decoder ) 构成, 每个解交织器和每个 译码器负责对应一个用户 (发送设备) 的解交织和译码工作, 当然 这里只给出了 IDMA 的译码架构, 在上述的实施例中还提到了结合 IDMA的其他混合式的多址架构, 这是现有技术此处不再赘述。
在上述的构架下, 本发明的实施例具体按照如下方式实施, 参 照图 4所示:
301、 发送设备获取待发送数据使用的时频资源及交织器的信 息, 所述交织器的信息包括交织器与时间同步码的对应关系, 其中, 时间同步码与交织器——对应。
可选的, 步骤 301具体包括: 所述发送设备通过系统广播消息、 专用信令通知、 或者根据预先配置, 获取所述待发送数据使用的时 频资源; 所述发送设备通过系统广播消息、 专用信令通知、 或者根 据预先配置, 获取所述待发送数据使用的交织器的信息。
具体的包括以下各种可能组合出现的情况:
所述发送设备通过系统广播消息中获取为所述发送设备分配的 时频资源及交织器的信息。
或者, 所述发送设备接收专用信令通知, 所述专用信令通知中 包含为所述发送设备分配的时频资源及交织器的信息。
或者, 所述发送设备获取自身预配置的交织器的信息并在自身 预设的时频资源中选取所述待发送数据使用的时频资源。
或者, 所述发送设备在系统广播消息中获取为所述发送设备分 配的时频资源, 并接收专用信令通知, 所述专用信令通知中包含为 所述发送设备分配的交织器的信息。
或者, 所述发送设备在系统广播消息中获取为所述发送设备分 配的交织器的信息, 并接收专用信令通知, 所述专用信令通知中包 含为所述发送设备分配的时频资源。
或者, 所述发送设备获取自身预配置的交织器的信息, 并在系 统广播中获取为所述发送设备分配的时频资源。
或者, 所述发送设备在自身预设的时频资源中选取所述待发送 数据使用的时频资源, 在系统广播消息中获取为所述发送设备分配 的交织器的信息。
或者, 所述发送设备获取自身预配置的交织器的信息, 并接收 专用信令通知, 所述专用信令通知中包含为所述发送设备分配的交 织器的信息。
或者, 在自身预设的时频资源中选取所述待发送数据使用的时 频资源, 并接收专用信令通知, 所述专用信令通知中包含为所述发 送设备分配的交织器的信息。
对应的, 接收设备通过系统广播消息, 或专用信令通知向所述 发送设备通知为所述发送设备分配的时频资源; 所述接收设备通过 系统广播消息, 或专用信令通知向所述发送设备通知所述交织器的 信息。
这时, 在选定的时频资源上, 发送数据可以釆用时间同步码 + 数据的形式进行发送, 进一步可选的, 待发送数据中还包括保护时 间间隔, 此时可以釆用时间同步码 +数据 +保护时间间隔 G T字符的格 式进行数据发送, 参照下表 1 : 时间同步码
Figure imgf000013_0001
GT
此时时间同步码是发送设备随机选择的, 而添加数据传输保护 时间字符 ( G T , g ua r d t i me ) 是为了避免在接收设备侧对接收下一 帧数据的干扰。
这里由于时间同步码与交织器——对应, 因此, 时间同步码和 交织器的对应关系可以如下表 2所示: 时间同步码 交织器 时间同步码 # 0 交织器 # 0 时间同步码 #1 交织器 #1 时间同步码 #2 交织器 #2 时间同步码 #3 交织器 #3 时间同步码 #4 交织器 #4 时间同步码 #5 交织器 #5
如前所述, 该表 2 所反映的对应关系可以作为交织器信息通过 接收设备向发送设备广播, 或者专用信令通知, 或者在发送设备侧 预先设置。
302、发送设备根据所述交织器的信息为所述待发送数据选择时 间同步码及交织器。
当然这里交织器或者时间同步码是随机为发送设备配置的, 由 于时间同步码和交织器之间存在时间同步码与交织器——对应这一 对应关系, 因此在步骤 302 中可以认为发送设备先配置时间同步码 或者先配置交织器均可, 只要确定了两者中的一个另一方便可以根 据对应关系确定, 因此本发明在此不作限制。
可选的, 在所述待发送数据中包含所述发送设备的标识信息。 所述发送设备的标识信息对应唯一的交织器及时间同步码, 其 中所述标识信息包括所述发送设备的小区无线网络临时标识 C-RNTI ( Cell Radio Network Temporary Identifier ); 所述发送设备与 所述接收设备建立连接过程中获取的介质访问层控制 MAC ( Media Access Control ) 地址; 所述待发送数据的时间信息, 当然这里的 时间信息可以包括子帧、 无线帧、 时隙等; 所述待发送数据使用的 固定时频资源标识中的一种或多种;
如同步骤 301 中设置的表 1 所示的数据发送格式, 为了使得接 收设备可以区分发送设备及对应发送设备发送的数据, 可以在待发 送数据中设置对应发送设备的标识信息, 该标识信息可以为设置在 待发送数据的前 1 6 个比特位中的标识信息, 以便接收设备根据该
1 6个比特位识别接收设备。
这样, 待发送数据中包含发送设备的标识信息, 由于每个发送 设备的标识信息是不同的, 在数据发送过程中, 每个发送设备便可 以根据所述发送设备的标识信息为发送设备选取不同的时间同步码 及交织器, 因此相当于发送设备选取的交织器及时间同步码的标识 与发送设备的标识信息——对应, 在一个小区中, 发送设备的标识 信息是唯一且不同的, 因此在发送端根据发送设备标识信息选择交 织器及时间同步码, 便决定了同一个小区中不同的发送设备会通过 不同的交织器进行数据的发送, 进而避免了数据发送时的碰撞。 当 然可选的, 在待发送数据中也可以不包含发送设备的标识信息, 而 只是在发送设备侧根据所述发送设备的标识信息选择时间同步码及 交织器, 使得不同的发送设备选择不同的交织器进行数据交织处理, 这样也可以良好的避免数据发送时的碰撞; 只是在待发送数据中包 含发送设备的标识信息时便于接收设备根据该标识信息识别接收设 备。
类似的, 也可以设置发送设备可选取的交织器及时间同步码的 标识与发送设备的标识信息的集合——对应, 此时假设发送设备的 设备标识为 , 其对应的时间同步码的标识为 S , 则 与 s 的关系 为: ^腦 dM , 其中 M为预设的固定值, 或者小区内可用交织器的 总数, 若 M= 3 2 , 此时标识为 5、 3 7、 6 9 的发送设备均釆用 s = 5 的交织器; 进一步的, 为了使得接收设备获知对应的接收设备, 也 可在待发送数据中设置包含发送设备的设备标识的参数作为标识信 息, 可在设备标识为 n'D的发送设备的数据中设置参数 K , 使得 k = floor(nID I M) ^ 其中 表示不大于 x的最大整数, 如设备标识为 3 7 的发送设备, 其数据中应包含参数为 " 1 " ( k = floor( H 2) = \ ) ? 这 样在接收设备侧可以根据 s先确定对应的交织器,再根据 k确定对应 的发送设备, 避免了数据的碰撞。 303、发送设备通过所述选择的交织器对所述待发送数据进行交 织处理, 将带有所述选择的时间同步码的经交织后的待发送数据在 所述时频资源上发送至接收设备。
当然根据 I DMA构架下, 步骤 30 3是通过通用编码器( ENC ) (该 通用编码器可以为前向纠错编码器 ( FEC )、 扩频器或二者的级联) 对待发送数据进行编码后, 通过该选定的交织器进行交织处理发送 至接收设备, 这里的调制编码方式为现有技术不做具体限定, 当然 可以为发送设备预设的编码方式或者接收设备发送的编码方式, 具 体包括: QP SK编码, l / 3 Tu r bo编码等。
304、接收设备在预置的时频资源上接收发送设备发送的带有时 间同步码的发送数据。
305、接收设备根据预置的交织器的信息调用所述时间同步码对 应的交织器解交织所述发送数据, 所述交织器的信息包括交织器与 时间同步码的对应关系, 其中, 时间同步码与交织器——对应。
可选的, 在所述待发送数据中包含所述发送设备的标识信息时, 还包括以下步骤:
306、接收设备根据所述发送设备的标识信息确定所述发送数据 对应的发送设备。
进一步可选的, 由于在步骤 301 中, 表 1 所示的数据格式中包 含保护时间间隔 GT字符, 因此, 接收设备在所述保护时间间隔后对 接收到的下一发送数据进行解交织处理。
本发明的实施例提供的数据传输方法, 通过为待发送的数据选 择时间同步码及对应的交织器进行数据发送, 不必在每次数据发送 的过程首先通过请求资源建立设备间的链接同步, 进而实现了非授 权式的数据发送, 有效降低了信令的开销, 提高了传输效率降低了 时间延时; 此外在待发送数据中包含发送设备的标识信息时, 在接 收设备侧可以通过不同的交织器识别不同发送设备的数据, 并进行 相应的解交织处理, 降低了数据传输过程中发生碰撞的可能性。
本发明的实施例提供一种发送设备, 基于 I DMA架构或 I DMA形 成的混合架构, 该发送设备用于实现上述方法实施例中提供的数据 传输方法, 该发送设备可以为移动终端如: 手机、 掌上电脑, 或者 其他入网的用户端设备, 如个人电脑、 企业服务器等等, 参照图 5 所示, 该发送设备 5 包括: 获取单元 5 1、 配置单元 5 2 及发送单元 5 3 ; 其中,
获取单元 5 1 , 用于获取待发送数据使用的时频资源及交织器的 信息, 所述交织器的信息包括交织器与时间同步码的对应关系, 其 中, 时间同步码与交织器——对应;
可选的, 获取单元 5 1具体用于, 通过系统广播消息、 专用信令 通知、 或者根据预先配置, 获取所述待发送数据使用的时频资源; 通过系统广播消息、 专用信令通知、 或者根据预先配置, 获取 所述待发送数据使用的交织器的信息。
配置单元 52 , 用于根据所述获取单元 5 1 获取的所述交织器的 信息为所述待发送数据选择时间同步码及交织器;
可选的配置单元 52具体用于, 根据所述发送设备的标识信息选 择时间同步码或者交织器, 所述发送设备的标识信息对应唯一的交 织器及时间同步码, 其中所述标识信息包括所述发送设备的小区无 线网络临时标识 C-RNT I , 所述发送设备与所述接收设备建立连接过 程中获取的介质访问层控制 MAC地址, 所述待发送数据的时间信息, 所述待发送数据使用的固定时频资源标识中的一种或多种。 这样在 发送设备侧根据所述发送设备的标识信息选择时间同步码或者交织 器, 使得不同的发送设备选择不同的交织器进行数据交织处理, 这 样也可以良好的避免数据发送时的碰撞。
发送单元 5 3 , 用于通过配置单元 52 选择的交织器对所述待发 送数据进行交织处理, 将带有所述选择的时间同步码的经交织后的 待发送数据在所述获取单元 5 1 获取的所述时频资源上发送至接收 设备。
本发明的实施例提供的发送设备, 通过为待发送的数据选择时 间同步码及对应的交织器进行数据发送, 不必在每次数据发送的过 程首先通过请求资源建立设备间的链接同步, 进而实现了非授权式 的数据发送, 有效降低了信令的开销, 提高了传输效率降低了时间 延时。
进一步的, 在所述待发送数据中包含所述发送设备的标识信息; 这样, 在接收设备侧可以通过不同的交织器识别不同发送设备的数 据, 并进行相应的解交织处理, 降低了数据传输过程中发生碰撞的 可能性。
可选的, 待发送数据中还包括数据传输保护时间字符。 以便接 收设备在所述数据传输保护时间字符指示的保护时间后对接收到的 下一待发送数据进行解交织处理, 避免了对下一帧的干扰。
本发明的实施例提供一种接收设备, 基于 I DMA或 I DMA形成的 混合架构, 该接收设备用于实现上述方法实施例中提供的数据传输 方法, 该接收设备包括: 运营商部署的大型的基站、 及闭合用户组 中的小型网络收发节点, 参照图 6所示, 该接收设备 6 包括: 6 1接 收单元和解交织单元 62 , 其中,
接收单元 6 1 , 用于在预置的时频资源上接收发送设备发送的带 有时间同步码的发送数据;
解交织单元 62 , 用于根据预置的交织器的信息调用所述时间同 步码对应的交织器解交织所述接收单元 6 1接收到的所述发送数据, 所述交织器的信息包括交织器与时间同步码的对应关系, 其中, 时 间同步码与交织器——对应。
可选的, 参照图 6所示, 接收设备还包括发送单元 6 0 , 所述发 送单元 6 0通过系统广播消息, 或专用信令通知向所述发送设备通知 为所述发送设备分配的时频资源;
通过系统广播消息, 或专用信令通知向所述发送设备通知所述 交织器的信息。
本发明的实施例提供的接收设备, 通过接收发送设备发送的带 有与交织器——对应的时间同步码的待发送数据, 不必在每次数据 传输的过程首先通过发送设备请求资源建立设备间的链接同步, 进 而实现了非授权式的数据发送, 有效降低了信令的开销, 提高了传 输效率降低了时间延时。
进一步可选的, 参照图 6所示, 接收设备还包括: 识别单元 63, 用于在所述待发送数据中包含所述发送设备的标识信息时, 根 据所述发送设备的标识信息确定所述发送数据对应的发送设备。
这样, 在接收设备侧可以通过不同的交织器识别不同发送设备 的数据, 并进行相应的解交织处理, 降低了数据传输过程中发生碰 撞的可能性。
进一步可选的, 所述发送数据中还包括保护时间间隔,
所述解交织单元 62 还用于在所述保护时间间隔后对接收到的 下一发送数据进行解交织处理, 这样避免了对下一帧的干扰。
本发明的实施例提供一种发送设备, 参照图 7 所示, 包括: 至 少一个处理器 71、 存储器 72、 发射器 73和总线 74, 所述至少一个 处理器 71、 存储器 72 和发射器 73通过总线 74 连接并完成相互间 的通信, 所述存储器 72用于存储程序代码, 其中:
该总线 74 可以是工业标准体系结构 ( Industry Standard Architecture , 简称为 ISA ) 总线、 夕卜部设备互连 ( Peripheral Component, 简称为 PCI ) 总线或扩展工业标准体系结构 ( Extended Indus try Standard Architecture, 简称为 EISA ) 总线等。 该总线 74可以分为地址总线、 总线、 控制总线等。 为便于表示, 图 7 中仅 用一条粗线表示, 但并不表示仅有一根总线或一种类型的总线。 其 中:
存储器 72用于存储可执行程序代码, 该程序代码包括计算机操 作指令。 存储器 72可能包含高速 RAM存储器, 也可能还包括非易失 性存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。
处理器 71可能是一个中央处理器 ( Central Processing Unit, 简称为 CPU ) , 或者是特定集成电路 ( Application Specif ic Integrated Circuit, 简称为 ASIC ), 或者是被配置成实施本发明 实施例的一个或多个集成电路。 发射器 73, 主要用于实现本实施例的发送设备和接收设备之间 的通信。
处理器 71, 还用于调用存储器 72 中的程序代码, 用以执行以 下操作:
所述处理器 71 用于获取待发送数据使用的时频资源及交织器 的信息, 所述交织器的信息包括交织器与时间同步码的对应关系, 其中, 时间同步码与交织器——对应;
所述处理器 71, 用于根据所述交织器的信息为所述待发送数据 选择时间同步码及交织器;
所述处理器 71, 用于通过选择的交织器对所述待发送数据进行 交织处理, 将带有所述选择的时间同步码的经交织后的待发送数据 在所述时频资源上通过所述发射器 73发送至接收设备。
本发明的实施例提供的发送设备, 通过为待发送的数据选择时 间同步码及对应的交织器进行数据发送, 不必在每次数据发送的过 程首先通过请求资源建立设备间的链接同步, 进而实现了非授权式 的数据发送, 有效降低了信令的开销, 提高了传输效率降低了时间 延时。
可选的, 发送设备还包括与所述总线连接的接收器 75, 处理器 71具体用于,
通过所述接收器 75接收的系统广播消息、 所述接收器 75接收 的专用信令通知、 或者根据所述处理器 71预先配置, 获取所述待发 送数据使用的时频资源;
通过所述接收器 75接收的系统广播消息、 所述接收器 75接收 的专用信令通知、 或者根据所述处理器 71预先配置, 获取所述待发 送数据使用的交织器的信息。
可选的, 所述处理器 71具体用于根据根据所述发送设备的标识 信息及所述交织器的信息选择时间同步码及交织器, 所述发送设备 的标识信息对应唯一的交织器及时间同步码。 其中所述标识信息包 括所述发送设备的小区无线网络临时标识 C-RNTI, 所述发送设备与 所述接收设备建立连接过程中获取的介质访问层控制 MAC 地址, 所 述待发送数据的时间信息, 所述待发送数据使用的固定时频资源标 识中的一种或多种。 这样在发送设备侧根据所述发送设备的标识信 息选择时间同步码或者交织器, 使得不同的发送设备选择不同的交 织器进行数据交织处理, 这样也可以良好的避免数据发送时的碰撞。
进一步的, 在所述待发送数据中包含所述发送设备的标识信息; 这样, 在接收设备侧可以通过不同的交织器识别不同发送设备的数 据, 并进行相应的解交织处理, 降低了数据传输过程中发生碰撞的 可能性。
可选的, 所述待发送数据中还包括保护时间间隔。 以便接收设 备在所述保护时间间隔后对接收到的下一待发送数据进行解交织处 理, 避免了对下一帧的干扰。
本发明的实施例提供一种接收设备, 包括: 至少一个处理器 81、 存储器 82、 接收器 83和总线 84, 所述至少一个处理器 81、 存储器 82和接收器 83通过总线 84连接并完成相互间的通信, 所述存储器 82用于存储程序代码, 其中:
该总线 84 可以是工业标准体系结构 ( Industry Standard Architecture , 简称为 ISA ) 总线、 夕卜部设备互连 ( Peripheral Component, 简称为 PCI ) 总线或扩展工业标准体系结构 ( Extended Indus try Standard Architecture, 简称为 EISA ) 总线等。 该总线 84可以分为地址总线、 总线、 控制总线等。 为便于表示, 图 8 中仅 用一条粗线表示, 但并不表示仅有一根总线或一种类型的总线。 其 中:
存储器 82用于存储可执行程序代码, 该程序代码包括计算机操 作指令。 存储器 82可能包含高速 RAM存储器, 也可能还包括非易失 性存储器 ( non-volatile memory ), 例如至少一个磁盘存储器。
处理器 81可能是一个中央处理器 ( Central Processing Unit, 简称为 CPU ) , 或者是特定集成电路 ( Application Specif ic Integrated Circuit, 简称为 ASIC ), 或者是被配置成实施本发明 实施例的一个或多个集成电路。
接收器 8 3 , 主要用于实现本实施例的发送设备和接收设备之间 的通信。
处理器 8 1 , 还用于调用存储器 82 中的程序代码, 用以执行以 下操作:
接收器 8 3 , 用于在预置的时频资源上接收发送设备发送的带有 时间同步码的发送数据;
处理器 8 1 , 用于根据预置的交织器的信息调用所述时间同步码 对应的交织器解交织所述发送数据, 所述交织器的信息包括交织器 与时间同步码的对应关系, 其中, 时间同步码与交织器——对应。
可选的, 接收设备还包括与所述总线 84 连接的发射器 85 , 发 射器 85用于, 通过系统广播消息, 或专用信令通知向所述发送设备 通知为所述发送设备分配的时频资源;
通过系统广播消息, 或专用信令通知向所述发送设备通知所述 交织器的信息。
本发明的实施例提供的接收设备, 通过接收发送设备发送的带 有与交织器——对应的时间同步码的待发送的数据, 不必在每次数 据传输的过程首先通过发送设备请求资源建立设备间的链接同步, 进而实现了非授权式的数据发送, 有效降低了信令的开销, 提高了 传输效率降低了时间延时。
进一步的, 处理器 8 1 , 还用于在所述待发送数据中包含所述发 送设备的标识信息时, 根据所述发送设备的标识信息确定所述发送 数据对应的发送设备。
这样, 在接收设备侧可以通过不同的交织器识别不同发送设备 的数据, 并进行相应的解交织处理, 降低了数据传输过程中发生碰 撞的可能性。
进一步可选的, 所述发送数据中还包括保护时间间隔时, 处理器 8 1 还用于在所述保护时间间隔后对接收到的下一发送 数据进行解交织处理, 这样避免了对下一帧的干扰。 本发明的实施例提供一种数据传输系统 9 , 用于实现上述法法 实施例提供的数据传输方法, 包括上述实施例提供的接收设备 9 1和 发送设备 92。
本发明的实施例提供的数据传输系统, 通过为待发送的数据选 择固定的时间同步码及对应的交织器进行数据发送, 不必在每次数 据发送的过程首先通过请求资源建立设备间的链接同步, 进而实现 了非授权式的数据发送, 有效降低了信令的开销, 提高了传输效率 降低了时间延时; 此外, 在待发送数据中包含发送设备的标识信息 时, 在接收设备侧可以通过不同的交织器识别不同发送设备的数据, 并进行相应的解交织处理, 降低了数据传输过程中发生碰撞的可能 性。
以上所述, 仅为本发明的具体实施方式, 但本发明的保护范围 并不局限于此, 任何熟悉本技术领域的技术人员在本发明揭露的技 术范围内, 可轻易想到变化或替换, 都应涵盖在本发明的保护范围 之内。 因此, 本发明的保护范围应所述以权利要求的保护范围为准。

Claims

权 利 要 求 书
1、 一种数据传输的方法, 其特征在于, 包括:
发送设备获取待发送数据使用的时频资源及交织器的信息, 所述 交织器的信息包括交织器与时间同步码的对应关系, 其中, 时间同步 码与交织器——对应;
根据所述交织器的信息为所述待发送数据选择时间同步码及交 织器;
通过所述选择的交织器对所述待发送数据进行交织处理, 将带有 所述选择的时间同步码的经交织后的待发送数据在所述时频资源上 发送至接收设备。
2、 根据权利要求 1 所述的方法, 其特征在于, 所述发送设备获 取待发送数据使用的时频资源及交织器的信息, 包括:
所述发送设备通过系统广播消息、 专用信令通知、 或者根据预先 配置, 获取所述待发送数据使用的时频资源;
所述发送设备通过系统广播消息、 专用信令通知、 或者根据预先 配置, 获取所述待发送数据使用的交织器的信息。
3、 根据权利要求 1 所述的方法, 其特征在于, 所述根据所述交 织器的信息为所述待发送数据选择时间同步码及交织器, 包括: 根据所述发送设备的标识信息及所述交织器的信息选择时间同 步码及交织器, 所述发送设备的标识信息对应唯一的交织器及时间同 步码。
4、 根据权利要求 3所述的方法, 其特征在于,
在所述待发送数据中包含所述发送设备的标识信息。
5、 根据权利要求 3或 4所述的方法, 其特征在于,
所述标识信息包括所述发送设备的小 区无线网络临时标识 C-RNT I , 所述发送设备与所述接收设备建立连接过程中获取的介质访 问层控制 MAC地址, 所述待发送数据的时间信息, 所述待发送数据使 用的固定时频资源标识中的一种或多种。
6、 根据权利要求 1 - 5 任一项所述的方法, 其特征在于, 所述待 发送数据中还包括保护时间间隔。
7、 一种数据传输的方法, 其特征在于, 包括:
接收设备在预置的时频资源上接收发送设备发送的带有时间同 步码的发送数据;
根据预置的交织器的信息调用所述时间同步码对应的交织器解 交织所述发送数据, 所述交织器的信息包括交织器与时间同步码的对 应关系, 其中, 时间同步码与交织器——对应。
8、 根据权利要求 7 所述的方法, 其特征在于, 接收设备在预置 的时频资源上接收发送设备发送的经交织后并带有时间同步码的发 送数据之前, 包括:
所述接收设备通过系统广播消息, 或专用信令通知向所述发送设 备通知为所述发送设备分配的时频资源;
所述接收设备通过系统广播消息, 或专用信令通知向所述发送设 备通知所述交织器的信息。
9、 根据权利要求 7 所述的方法, 其特征在于, 所述发送数据中 包含所述发送设备的标识信息时, 所述发送设备的标识信息对应唯一 的交织器及时间同步码;
所述根据预置的交织器信息调用所述时间同步码对应的交织器 解交织所述发送数据后, 还包括: 所述接收设备根据所述发送设备的 标识信息确定所述待发送数据对应的发送设备。
1 0、 根据权利要求 9所述的方法, 其特征在于, 所述标识信息包 括所述发送设备的小区无线网络临时标识 C-RNT I , 所述发送设备与 所述接收设备建立连接过程中获取的介质访问层控制 MAC地址, 所述 发送数据的时间信息, 所述发送数据使用的固定时频资源标识中的一 种或多种。
1 1、 根据权利要求 7 - 1 0任一项所述的方法, 其特征在于, 所述 发送数据中还包括保护时间间隔时,
所述方法还包括:
在所述保护时间间隔后对接收到的下一发送数据进行解交织处 理。
1 2、 一种发送设备, 其特征在于, 包括:
获取单元, 用于获取待发送数据使用的时频资源及交织器的信 息, 所述交织器的信息包括交织器与时间同步码的对应关系, 其中, 时间同步码与交织器——对应;
配置单元, 用于根据所述获取单元获取的所述交织器的信息为所 述待发送数据选择时间同步码及交织器;
发送单元, 用于通过配置单元选择的交织器对所述待发送数据进 行交织处理, 将带有所述选择的时间同步码的经交织后的待发送数据 在所述获取单元获取的所述时频资源上发送至接收设备。
1 3、 根据权利要求 1 2 所述的发送设备, 其特征在于, 所述获取 单元具体用于,
通过系统广播消息、 专用信令通知、 或者根据预先配置, 获取所 述待发送数据使用的时频资源;
通过系统广播消息、 专用信令通知、 或者根据预先配置, 获取所 述待发送数据使用的交织器的信息。
1 4、 根据权利要求 1 2所述的发送设备, 其特征在于,
所述配置单元具体用于, 根据所述发送设备的标识信息及所述获 取单元发送的所述交织器的信息选择时间同步码及交织器, 所述发送 设备的标识信息对应唯一的交织器及时间同步码。
1 5、 根据权利要求 1 4 所述的发送设备, 其特征在于, 在所述待 发送数据中包含所述发送设备的标识信息。
1 6、 根据权利要求 1 4或 1 5所述的发送设备, 其特征在于, 所述发送设备的标识信息对应唯一的交织器及时间同步码, 其中 所述标识信息包括所述发送设备的小区无线网络临时标识 C-RNT I , 所述发送设备与所述接收设备建立连接过程中获取的介质访问层控 制 MAC地址, 所述待发送数据的时间信息, 所述待发送数据使用的固 定时频资源标识中的一种或多种。
1 7、 根据权利要求 1 4 - 1 6任一项所述的发送设备, 其特征在于, 所述待发送数据中还包括保护时间间隔。
1 8、 一种接收设备, 其特征在于, 包括:
接收单元, 用于在预置的时频资源上接收发送设备发送的带有时 间同步码的发送数据;
解交织单元, 用于根据预置的交织器的信息调用所述时间同步码 对应的交织器解交织所述接收单元接收到的所述发送数据, 所述交织 器的信息包括交织器与时间同步码的对应关系, 其中, 时间同步码与 交织器——对应。
1 9、 根据权利要求 1 8 所述的接收设备, 其特征在于, 所述接收 设备还包括: 发送单元, 用于通过系统广播消息, 或专用信令通知向 所述发送设备通知为所述发送设备分配的时频资源;
通过系统广播消息, 或专用信令通知向所述发送设备通知所述交 织器的信息。
2 0、 根据权利要求 1 8 所述的接收设备, 其特征在于, 所述接收 设备还包括: 识别单元,
用于在所述发送数据中包含所述发送设备的标识信息时, 根据所 述发送设备的标识信息确定所述发送数据对应的发送设备。
2 1、 根据权利要求 1 8 - 2 0任一项所述的接收设备, 其特征在于, 所述发送数据中还包括时保护时间间隔时,
所述解交织单元还用于在所述保护时间间隔后对接收到的下一 发送数据进行解交织处理。
2 2、 一种发送设备, 其特征在于, 包括: 至少一个处理器、 存储 器、 发射器和总线, 所述至少一个处理器、 存储器和发射器通过总线 连接并完成相互间的通信, 所述存储器用于存储程序代码, 其中: 所述处理器用于获取待发送数据使用的时频资源及交织器的信 息, 所述交织器的信息包括交织器与时间同步码的对应关系, 其中, 时间同步码与交织器——对应;
所述处理器, 用于根据所述交织器的信息为所述待发送数据选择 时间同步码及交织器; 所述处理器, 用于通过选择的交织器对所述待发送数据进行交织 处理, 将带有所述选择的时间同步码的经交织后的待发送数据在所述 时频资源上通过所述发射器发送至接收设备。
2 3、 根据权利要求 22 所述的发送设备, 其特征在于, 所述发送 设备还包括与所述总线连接的接收器, 所述处理器具体用于,
通过所述接收器接收的系统广播消息、 所述接收器接收的专用信 令通知、 或者根据所述处理器预先配置, 获取所述待发送数据使用的 时频资源;
通过所述接收器接收的系统广播消息、 所述接收器接收的专用信 令通知、 或者根据所述处理器预先配置, 获取所述待发送数据使用的 交织器的信息。
24、 根据权利要求 22所述的发送设备, 其特征在于,
所述处理器具体用于根据所述发送设备的标识信息及所述交织 器的信息选择时间同步码及交织器, 所述发送设备的标识信息对应唯 一的交织器及时间同步码。
25、 根据权利要求 24所述的发送设备, 其特征在于,
在所述待发送数据中包含所述发送设备的标识信息。
26、 根据权利要求 24或 25所述的发送设备, 其特征在于, 所述发送设备的标识信息对应唯一的交织器及时间同步码, 其中 所述标识信息包括所述发送设备的小区无线网络临时标识 C-RNT I , 或者所述发送设备与所述接收设备建立连接过程中获取的介质访问 层控制 MAC地址, 或者所述待发送数据的时间信息, 或者所述待发送 数据使用的固定时频资源标识中的一种或多种。
27、 根据权利要求 22 - 26任一项所述的发送设备, 其特征在于, 所述待发送数据中还包括保护时间间隔。
28、 一种接收设备, 其特征在于, 包括: 至少一个处理器、 存储 器、 接收器和总线, 所述至少一个处理器、 存储器和接收器通过总线 连接并完成相互间的通信, 所述存储器用于存储程序代码, 其中: 所述接收器, 用于在预置的时频资源上接收发送设备发送的带有 时间同步码的发送数据;
所述处理器, 用于根据预置的交织器的信息调用所述时间同步码 对应的交织器解交织所述发送数据, 所述交织器的信息包括交织器与 时间同步码的对应关系, 其中, 时间同步码与交织器——对应。
29、 根据权利要求 28 所述的接收设备, 其特征在于, 所述接收 设备还包括与所述总线连接的发射器, 所述发射器用于,
通过系统广播消息, 或专用信令通知向所述发送设备通知为所述 发送设备分配的时频资源;
通过系统广播消息, 或专用信令通知向所述发送设备通知所述交 织器的信息。
30、 根据权利要求 28 所述的接收设备, 其特征在于, 所述处理 器,
还用于在所述发送数据中包含所述发送设备的标识信息时, 根据 所述发送设备的标识信息确定所述发送数据对应的发送设备。
31、 根据权利要求 28 - 30任一项所述的接收设备, 其特征在于, 所述发送数据中还包括保护时间间隔时,
所述处理器还用于在所述保护时间间隔后对接收到的下一发送 数据进行解交织处理。
32、 一种数据传输系统, 其特征在于, 包括权利要求 1 2 - 1 7任一 项所述的发送设备以及权利要求 1 8 -2 1任一项所述的接收设备;
或者, 权利要求 22 -27 任一项所述的发送设备以及权利要求 28- 31任一项所述的接收设备。
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