WO2017140194A1 - Procédé de transmission de données, et dispositif et système de communication - Google Patents

Procédé de transmission de données, et dispositif et système de communication Download PDF

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Publication number
WO2017140194A1
WO2017140194A1 PCT/CN2017/070765 CN2017070765W WO2017140194A1 WO 2017140194 A1 WO2017140194 A1 WO 2017140194A1 CN 2017070765 W CN2017070765 W CN 2017070765W WO 2017140194 A1 WO2017140194 A1 WO 2017140194A1
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Prior art keywords
transmission resource
communication mode
communication
data
group
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PCT/CN2017/070765
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English (en)
Chinese (zh)
Inventor
王坚
李榕
乔云飞
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华为技术有限公司
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Publication of WO2017140194A1 publication Critical patent/WO2017140194A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a data transmission method, a communication device, and a system.
  • D2D communication is a new communication technology introduced in the Long Term Evolution (LTE) network architecture proposed by the 3rd Generation Partnership Project (3GPP). It allows two terminals in the cellular network to communicate directly with each other through a specific channel, which can improve system throughput, reduce system energy overhead, and enhance system coverage.
  • LTE Long Term Evolution
  • 3GPP 3rd Generation Partnership Project
  • FIG. 1 is a schematic diagram of an application for introducing D2D communication in a cellular network.
  • the user equipment (User Equipment, UE for short) 1 the UE2, the UE3, and the UE4, such as the UE1 and the UE4, directly transmit data without performing data forwarding through the base station.
  • UE5 and UE6 are implemented for cellular communication, and when the UE5 transmits data to the UE6, the data is forwarded to the UE6 by the base station.
  • a common method for realizing the coexistence of cellular communication and D2D communication is to use D2D communication and cellular communication to use different time-frequency resources to avoid mutual interference, which requires dividing the time-frequency resources of the entire cellular network into two parts that are completely orthogonal. Part of it is used for D2D communication, and part is used for cellular communication, which not only guarantees the quality of cellular communication and D2D communication, but also ensures that it does not cause excessive interference between cellular communication and D2D communication, and realizes coexistence of cellular communication and D2D communication.
  • Embodiments of the present invention provide a data transmission method, a communication device, and a system, which are used to implement coexistence of two communication modes on the basis of ensuring time-frequency resource utilization.
  • the first aspect of the present invention provides a data transmission method, including:
  • data may be transmitted based on the first communication mode and the second communication mode, first acquiring the first data and the second data, and determining that the first communication mode is used to transmit the first data and determine the second communication mode. Used to transfer the second data.
  • the communication device selects, from the set of transmission resource units, a first target transmission resource unit for transmitting the first data, and selects, from the transmission resource unit set, a second target transmission resource unit for transmitting the second data, wherein the transmission provided by the present invention
  • a resource unit set includes a plurality of transmission resource units, each of which includes a time
  • the domain resource, the frequency domain resource, and the coding resource, and the coding resource is determined by the code domain resource and/or the pilot resource, and the coding resources of any two transmission resource units are different, and the second target transmission resource unit and the first target provided above are provided.
  • a transmission resource unit is two different transmission resource units in a transmission resource unit set.
  • the communication device maps the first data to the first target transmission resource unit, obtains a first data frame, transmits the first data frame by using the first communication mode, and maps the second data to the second target transmission resource unit Obtaining a second data frame, and transmitting the second data frame by using the second target communication mode.
  • the communication device acquires the first data, determines a first communication mode for transmitting the first data, and then the communication device selects the first target transmission resource unit from the set of transmission resource units, and then Mapping the first data to the first target transmission resource unit, obtaining a first data frame, and transmitting the first data frame by using the first communication mode.
  • the communication device acquires the second data and determines a second communication mode for transmitting the second data. That is, the communication device provided by the present invention implements different communication modes to transmit data based on different transmission resource units.
  • the coding resources are determined by the code domain resources and/or the pilot resources, the coding resources in each of the two transmission resource units are different, that is, the timing domain resources and the frequency domain resources are not limited, so that the two communication modes are
  • the data can be transmitted on the same time-frequency resource or on different time-frequency resources to ensure the utilization of time-frequency resources.
  • different encodings of the two transmitted data are realized by using different coding resources. Therefore, the communication device implements different communication modes to transmit data through different transmission resource units, thereby realizing coexistence of the two communication modes.
  • the foregoing communications device may be the same communications device, or may be two different communications devices, including the first communications device and the second communications device.
  • the communication device when the communication device is a communication device, data can be simultaneously transmitted through the first communication mode and the second communication mode on the communication device, because the data frame is transmitted through the first communication mode.
  • the first target transmission resource unit when the data frame is transmitted through the second communication mode, the second target transmission resource unit is utilized, and therefore, the same communication device does not cause the simultaneous communication based on the two communication modes.
  • the interference between each other can also enable the communication device receiving the data frame to correctly demodulate the data frames under different communication mode communication, thereby improving the communication quality.
  • the first communication device transmits data by using the first target transmission resource unit based on the first communication mode
  • the second communication device is based on the second communication device.
  • the second communication mode utilizes the second target transmission resource unit to transmit data, so that two different communication devices can select different transmissions based on different communication modes under the same time-frequency resource or under different time-frequency resources.
  • the resource units can reduce the interference between each other, and can also enable the communication device receiving the data frame to correctly demodulate the data frames under different communication mode communication, thereby improving the communication quality.
  • the above communication device, the first communication device and the second communication device may be a mobile terminal, such as a mobile phone, or a "cellular" phone, and a computer having a mobile terminal, for example, may be portable, pocket-sized, Handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with a wireless access network.
  • the communication device, the first communication device, and the second communication device may also be devices on the radio access network side, such as a base station (eNB).
  • eNB base station
  • the coding resources of any two of the foregoing transmission resource units are different: the code domain resources in the coding resources of any two transmission resource units are different, or any two transmission resource units
  • the pilot resources in the coding resources are different, or the code domain resources and the pilot resources in the coding resources of any two transmission resource units are different.
  • the first communication mode is D2D communication
  • the second communication mode is cellular communication
  • the first communication mode is cellular communication
  • the second communication mode is D2D communication
  • the communications device selects a first target transmission resource unit from the set of transmission resource units according to the first communication mode, and from the foregoing transmission resource unit set according to the second communication mode.
  • Selecting the second target transmission resource unit includes: the communication device selecting the first target transmission resource unit from the first group of transmission resource units according to the first communication mode, and transmitting from the second group according to the second communication mode Selecting, in the resource unit, the foregoing second target transmission resource unit, where the foregoing transmission resource unit set includes the first group of transmission resource units and the second group of transmission resource units, where the first group of transmission resource units includes multiple transmission resource units, and the foregoing
  • the two sets of transmission resource units include a plurality of transmission resource units, and the first group of transmission resource units and the second group of transmission resource units are combined to obtain the transmission resource unit set.
  • the data transmission in the two communication modes exists, and the communication device that receives the data can correctly identify the data frame transmitted based on which communication mode, which is pre-in the embodiment of the present invention.
  • the transmission resource unit in the transmission resource unit set is divided into two groups, which are a first group transmission resource unit and a second group transmission resource unit, respectively.
  • first group of transmission resource units and the second group of transmission resource units are only for one type of different transmission resource unit combinations, instead of defining that the first communication device uses the first group of transmission resource units, and the second communication device uses The second group of transmission resource units may be used when the first group of transmission resource units are set for the first communication mode to transmit data, and the second group of transmission resource units are used for the second communication mode for transmitting data, correspondingly, Then, when the communication device determines that the first data is transmitted based on the first communication mode, the communication device selects a first target transmission resource unit from the first group of transmission resource units, and the communication device determines that the second to be transmitted is based on the second communication mode transmission, the communication The device selects a second target transmission resource unit from the second group of transmission resource units.
  • the communication device determines that the first data is transmitted based on the second communication mode
  • the communication device selects a first target transmission resource unit from the second group of transmission resource units
  • the communication device determines that the second data is transmitted based on the first communication mode
  • the communication The device selects a second target transmission resource unit from the first group of transmission resource units.
  • the communications device acquires a transmission resource unit grouping indication, where the foregoing transmission resource unit grouping indication is used to indicate that the foregoing transmission resource unit set includes the first group of transmission resource units and the second group of transmissions.
  • the resource unit, the first group of transmission resource units are used for the first communication mode communication, and the second group of transmission resource units are used for the second communication mode communication.
  • the communication device on the radio access network side may obtain the notification of the transmission resource unit group, for example, obtaining the transmission resource unit group indication from the base station. .
  • how to perform the grouping of the transmission resource unit in the transmission resource unit set may also be preset in the communication device according to a protocol.
  • the communication device that receives the transmission resource unit in the set of transmission resource units to receive the data frame can identify which communication mode transmission the data frame is based on, and By carrying the upper communication mode indication in the transmission data frame, it is possible to determine which communication mode transmission the data frame is based on based on the communication mode indication. Therefore, in the embodiment of the present invention, the first data frame and the second data frame respectively include a communication mode indication, where the first data frame and the second data frame are used to indicate that the first data frame and the second data frame are based on the first communication mode or the second communication mode. transmission.
  • the communications device maps the first data to the first target Transmitting the resource unit to obtain the first data frame, and transmitting the first data frame by using the first communication mode includes: the communication device encoding the first data according to the coding resource of the first target transmission resource unit to obtain the foregoing a data frame; the communication device invoking the time domain resource and the frequency domain resource of the first target transmission resource unit, transmitting the first data frame by using the first communication mode; and mapping the second data to the second target transmission
  • the resource unit obtains the second data frame, and the transmitting the second data frame by using the second target communication mode includes: the communication device encoding the second data according to the coding resource of the second target transmission resource unit to obtain the second a data frame; the communication device invoking the time domain resource and the frequency domain resource of the second target transmission resource unit, and transmitting the second data frame by using the second communication mode.
  • the coding resources in the transmission resource unit provided by the embodiment of the present invention are determined by the code domain resource and/or the pilot resource, so that there are three cases in which the transmission data is mapped into the transmission resource unit:
  • the first type the coding resource is determined by the code domain resource, that is, the transmission resource unit is determined by the time domain resource, the frequency domain resource, and the code domain resource.
  • the communication device first transmits the resource unit according to the first target.
  • the code domain resource encodes the first data, obtains the information part in the first data frame, and then obtains the frame header by other means, thereby generating a complete first data frame, and then using the first target transmission resource unit
  • the time domain resource transmits the first data frame.
  • the communication device first encodes the second data according to the code domain resource in the second target transmission resource unit, obtains the information part in the second data frame, and then obtains the frame header by other means, thereby generating a complete first And the second data frame is transmitted by using the time domain resource in the second target transmission resource unit.
  • the communication device transmits the resource element from the first target. Obtaining a pilot signal in the pilot resource, and then generating a first data frame according to the pilot signal and the first data, the pilot signal is used as a frame header of the first data frame, and then utilizing a time domain in the first target transmission resource unit The resource transmits the first data frame.
  • the communication device acquires a pilot signal from the pilot resources in the second target transmission resource unit, and then generates a second data frame according to the pilot signal and the second data, and then uses the time in the second target transmission resource unit.
  • the domain resource transmits a second data frame.
  • the third type the coding resource is determined by the code domain resource and the pilot resource, and the communication device encodes the first data according to the code domain resource in the coding resource in the first target transmission resource unit, to obtain the information in the first data frame. And then acquiring a pilot signal from a pilot resource of the coding resource in the first target transmission resource unit, and generating a first data frame according to the obtained pilot signal and the encoded information part, and using the pilot signal as the first data. The frame header of the frame. Similarly, the communication device encodes the second data according to the code domain resource in the coding resource in the second target transmission resource unit, obtains the information part in the second data frame, and then transmits the coding in the resource element from the second target. A pilot signal is obtained from a pilot resource of the resource, and a second data frame is generated according to the obtained pilot signal and the encoded information portion.
  • the communication mode indication may be carried in the frame header or the information part of the first data frame.
  • the code domain resource in the coding resource may be a codebook in a Sparse Code Multiple Access (SCMA), or may be a signature in a Low Density Signature (LDS).
  • SCMA Sparse Code Multiple Access
  • LDS Low Density Signature
  • the codebook of the SCMA specifies the mapping relationship between the information bits and the time-frequency resource elements corresponding to the SCMA codebook, and different users use different codebooks for encoding.
  • the signature in the LDS is the signature of the user, and different users use different signatures.
  • a second aspect of the present invention provides a data transmission method, which may include:
  • the communication device For the communication device as the receiving end, there is a first data frame and a second data frame received simultaneously, and the first data frame is transmitted in the first communication mode, and the second data frame is transmitted in the second communication mode.
  • the communication device determines a first target transmission resource unit for transmitting the first data frame, and determines a second target transmission resource unit for transmitting the second data frame, and then extracts according to the determined first target transmission resource unit. Adjusting the first data frame to obtain the first data, and demodulating the second data frame to obtain the second data according to the determined second target transmission resource unit.
  • the first communication mode for transmitting the first data frame may be determined when determining the first target transmission resource unit, and/or the first data frame is determined to be transmitted according to the demodulated first data.
  • the first communication mode Likewise, a second communication mode in which the second data frame is transmitted is determined when determining the second target transmission resource unit, and/or a second communication mode in which the second data frame is transmitted is determined based on the demodulated second data.
  • the communication device simultaneously receives the data frames transmitted in the two communication modes, and the data frames transmitted in the different communication modes are transmitted through different transmission resource units, therefore, the communication device will each Data frames are treated as data frames that need to be demodulated, rather than simply as interference, thereby correctly demodulating the data frames transmitted in each communication mode to reduce data transmission in the same signal-to-noise ratio.
  • the bit error rate improves the transmission quality.
  • the communication device registers the first communication mode and the second communication mode, and after demodulating the first data and the second data, the communication device delivers the first data to the first communication mode.
  • the matching protocol layer is further processed, and the second data is handed over to the protocol layer that matches the second communication mode for further processing. It should be noted that if the communication device only registers the first communication mode, the communication device hands the first data to the protocol layer that matches the first communication mode for further processing, and does not further process the second data. On the other hand, if the communication device only registers the second communication mode, the communication device hands the second data to the protocol layer matching the second communication mode for further processing, and does not further process the first data.
  • the transmission resource unit set is divided into a first group of transmission resource units and a second group of transmission resource units, and the first group of transmission resource units is defined for the first communication mode, Two sets of transmission resource units are used for the second communication mode.
  • the communication mode of the transmitted data frame is thus determined by transmitting the packet of the resource unit.
  • how to perform the grouping of the transmission resource unit in the transmission resource unit set in the embodiment of the present invention may be determined and notified by the upper layer device of the communication device, for example, the transmission resource unit group indication may be obtained from the upper layer device.
  • the communication mode indication may be carried in the data frame to indicate a target communication mode used for transmitting the data frame.
  • the communication mode for demodulating the data frame and determining the transmission data frame also has a certain sequence, which specifically includes two cases:
  • the communication mode is identified by grouping transmission resource units.
  • the communication device may determine that the first target transmission resource unit belongs to the first group of transmission resource units, thereby determining that the first data frame is transmitted in the first communication mode.
  • the second target transmission resource unit for the second data frame it may be determined that the second target transmission resource unit belongs to the second group of transmission resource units, thereby determining that the second data frame is transmitted in the second communication mode. .
  • the communication mode is indicated by carrying a communication mode indication in the data frame.
  • the communication device first transmits the resource unit through the first target of the first data frame, and demodulates the first data frame with the first target transmission resource unit to obtain the first The data then obtains a communication mode indication from the first data, and finally determines a first communication mode in which the first data frame is transmitted according to the communication mode indication.
  • the communication device first transmits the second data frame by using the second target transmission resource unit of the second data transmission unit to obtain the second data, and then obtains the communication mode indication from the second data, and finally according to the communication.
  • the mode indication determines a second communication mode in which the second data frame is transmitted.
  • the communication mode indication may be carried in a frame header of the data frame or carried in an information part of the data frame according to an actual situation.
  • the first communication mode is cellular communication
  • the second communication mode is D2D communication
  • the first communication mode is D2D communication
  • the second communication mode is cellular communication
  • the coding resources in the transmission resource unit are determined by the code domain resources.
  • the communication device obtains the time domain resource and the frequency domain resource in the target transmission resource unit according to the time and frequency of the bearer data frame; secondly, in this case, the code domain resource is scheduled and allocated by the system of the communication device, and the communication device determines the target according to the system scheduling information.
  • the code domain resource in the transmission resource unit is obtained from the time domain resource, the frequency domain resource, and the code domain resource.
  • the coding resources in the transmission resource unit are determined by the pilot resources.
  • the communication device obtains the time domain resource and the frequency domain resource in the target transmission resource unit according to the time and frequency of the bearer transmission data frame; secondly, the communication device detects the pilot portion of the data frame (for example, the pilot is an orthogonal sequence, The correlation operation can be used to detect the pilot resources.
  • the target transmission resource unit is obtained from the time domain resource, the frequency domain resource, and the pilot resource.
  • the coding resources in the transmission resource unit are determined by pilot resources and code domain resources.
  • the communication device obtains the time domain resource and the frequency domain resource in the target transmission resource unit according to the time and frequency of carrying the first data frame; secondly, the communication device detects the pilot portion of the data frame (for example, the pilot is an orthogonal sequence) , the correlation operation can be used to detect), and the pilot resource is determined.
  • the code domain resource is determined according to a mapping relationship of the pilot resource to the code domain resource specified by the communication device.
  • the target transmission resource unit is obtained by the time domain resource, the frequency domain resource, the pilot resource and the code domain resource.
  • the data frame is demodulated and divided into the following three demodulation methods:
  • the first type the coding resource is determined by the code domain resource, and the information part of the data frame is decoded by using the code domain resource of the target transmission resource unit to obtain the transmission data.
  • the coding resources are determined by pilot resources.
  • the communication device obtains the pilot information from the frame header of the data frame, thereby determining the pilot resource, and then determining the target transmission resource unit according to the transmission resource unit set.
  • the transmission data is obtained according to the information part of the data frame.
  • the coding resources are determined by code domain resources and pilot resources.
  • the communication device decodes the information portion in the data frame according to the code domain resource in the target transmission resource unit to obtain the transmission data.
  • the communication device may register the first communication mode or the second communication mode, or simultaneously register the first communication mode and the second communication mode, and the communication device may simultaneously receive the data frames sent by the two communication modes, wherein, if the communication The device only registers the first communication mode, and the communication device will no longer process the transmission data demodulated by the data frame transmitted by the second communication mode. If the communication device only registers the second communication mode, the communication device will no longer process the first communication.
  • the data frame transmitted by the mode demodulates the transmitted data.
  • a third aspect of the present invention provides a communication device, which may include: a processing module and a transmission module;
  • the processing module is configured to acquire first data and second data, and determine a first part for transmitting the first data. a communication mode and determining a second communication mode for transmitting the second data; selecting a first target transmission resource unit from the set of transmission resource units according to the first communication mode, and transmitting from the transmission according to the second communication mode Selecting a second target transmission resource unit in the resource unit set; mapping the first data to the first target transmission resource unit to obtain a first data frame, and mapping the second data to the second target transmission resource unit to obtain a second a data frame; and the transmission module is configured to transmit the first data frame by using the first communication mode, and transmit the second data frame by using the second target communication mode.
  • the processing module is specifically configured to select the first target transmission resource unit from the first group of transmission resource units according to the first communication mode, and according to the second communication mode. And selecting, by the second group of transmission resource units, the second target transmission resource unit, where the transmission resource unit set includes the first group of transmission resource units and the second group of transmission resource units, where the first group of transmission resource units includes multiple And a transmission resource unit, where the second group of transmission resource units includes a plurality of transmission resource units, and the first group of transmission resource units and the second group of transmission resource units are combined to obtain the transmission resource unit set.
  • the processing module is further configured to: obtain a transmission resource unit group indication, where the foregoing transmission resource unit group indication is used to indicate that the foregoing transmission resource unit set includes the first group of transmission resource units and the foregoing And a second group of transmission resource units, wherein the first group of transmission resource units are used for the first communication mode communication, and the second group of transmission resource units are used for the second communication mode communication.
  • the first data frame and the second data frame carry a communication mode indication, where the communication mode indication is used to indicate that the first data frame or the second data frame is transmitted.
  • the coding resources of any two of the foregoing transmission resource units are different: the code domain resources in the coding resources of any two transmission resource units are different, or any two transmission resource units
  • the pilot resources in the coding resources are different, or the code domain resources and the pilot resources in the coding resources of any two transmission resource units are different.
  • the communication device is a communication device.
  • the foregoing communications device includes a first communications device and a second communications device; wherein the first communications device and the second communications device are independent two communications devices, each having its own processing a module and a transmission module, the processing module of the first communication device is configured to acquire the first data, determine a first communication mode for transmitting the first data, and select the first target from the set of transmission resource units according to the first communication mode Transmitting the resource unit, mapping the first data to the first target transmission resource unit, to obtain a first data frame, and transmitting the first data frame by using the first communication mode; the transmission module of the first communication device is configured to pass the foregoing A communication mode transmits the first data frame.
  • the processing module of the second communication device is configured to acquire second data, determine a second communication mode for transmitting the second data, and select a second target transmission resource unit from the set of transmission resource units according to the second communication mode, Mapping the second data to the second target transmission resource unit to obtain a second data frame; and the transmission module of the second communication device is configured to transmit the second data frame by using the second target communication mode.
  • the first communication mode is cellular communication
  • the second communication mode is D2D communication
  • the first communication mode is D2D communication
  • the second communication mode is cellular communication
  • a fourth aspect of the present invention provides a communication device, which may include: a receiving module and a processing module;
  • the receiving module is configured to receive the first data frame and the second data frame
  • the processing module is configured to determine a first target transmission resource unit for transmitting the first data frame, and determine to transmit the second data.
  • a second target transmission resource unit of the frame where the first target transmission resource unit and the second target transmission resource unit are different two transmission resource units in the transmission resource unit set, and the transmission resource unit set includes multiple a transmission resource unit, each of the transmission resource units includes a time domain resource, a frequency domain resource, and an encoding resource, where the coding resource is determined by a code domain resource and/or a pilot resource, and coding resources of any two transmission resource units are different;
  • the first target transmission resource unit performs demodulation processing on the first data frame to obtain first data, and determines, according to the first data and/or the first target transmission resource unit, that the a first communication mode of the first data frame; performing demodulation processing on the second data frame according to the second target transmission resource unit to obtain a second number , Based on the second data and / or the second
  • the processing module is specifically configured to determine whether the first target transmission resource unit belongs to the first group of transmission resource units, and if the first target transmission resource unit belongs to the a set of transmission resource units, determining that a communication mode for transmitting the first data frame is a first communication mode; determining whether the second target transmission resource unit belongs to a second group of transmission resource units, if the second target The transmission resource unit belongs to the second group of transmission resource units, and then determines that the communication mode for transmitting the second data frame is the second communication mode; wherein the transmission resource unit set includes the first group of transmission resource units and a second group of transmission resource units, the first group of transmission resource units comprising a plurality of transmission resource units, the second group of transmission resource units comprising a plurality of transmission resource units, the first group of transmission resource units and the The two sets of transmission resource units are combined to obtain the set of transmission resource units.
  • the receiving module is further configured to: obtain a transmission resource unit group indication, where the transmission resource unit group indication is used to indicate that the transmission resource unit set includes the first group of transmission resources. And a second group of transmission resource units, the first group of transmission resource units being for the first communication mode communication, and the second group of transmission resource units being for the second communication mode communication.
  • the processing module is further configured to: obtain a communication mode indication from the first data, and determine, according to the communication mode indication acquired from the first data, to transmit the a communication mode of a data frame is a first communication mode; obtaining a communication mode indication from the second data, determining, according to a communication mode indication acquired from the second data, a communication mode for transmitting the second data frame is a communication mode indication indicating a communication mode used to transmit the first data frame or the second data frame.
  • the first communication mode is cellular communication
  • the second communication mode is D2D communication
  • the first communication mode is D2D communication
  • the second communication mode is cellular communication
  • a fifth aspect of the present invention provides a data transmission system, which may include: the communication device provided by the third aspect, and the communication device provided by the fourth aspect.
  • a sixth aspect of the present invention provides a communication device, which may include: a transceiver, a memory, and a processor; wherein the memory is configured to store program instructions; the processor is configured to invoke the program instructions to perform processing of: acquiring first data And second data, and determining a first communication mode for transmitting the first data and determining a second communication mode for transmitting the second data; selecting the first from the set of transmission resource units according to the first communication mode a target transmission resource unit, and selecting a second target transmission resource unit from the set of transmission resource units according to the second communication mode, wherein the transmission resource unit set includes a plurality of transmission resource units, each of the transmission resource units The time domain resource, the frequency domain resource and the coding resource are determined by the code domain resource and/or the pilot resource, and the coding resources of any two transmission resource units are different, and the second target transmission resource unit is different from the first a target transmission resource unit; mapping the first data to the first target transmission resource unit to obtain a first data frame, mapping the second data to the second target transmission resource
  • the foregoing processor specifically performs: processing, according to the foregoing first communication mode, the first target transmission resource unit from the first group of transmission resource units, and according to the second communication a mode, the second target transmission resource unit is selected from the second group of transmission resource units, where the transmission resource unit set includes the first group of transmission resource units and the second group of transmission resource units, where the first group of transmission resource units includes multiple The transmission resource unit, the second group of transmission resource units includes a plurality of transmission resource units, and the first group of transmission resource units and the second group of transmission resource units are combined to obtain the transmission resource unit set.
  • the processor further performs: acquiring a transmission resource unit group indication, where the foregoing transmission resource unit group indication is used to indicate that the foregoing transmission resource unit set includes the foregoing first group of transmission resource units and In the second group of transmission resource units, the first group of transmission resource units are used for the first communication mode communication, and the second group of transmission resource units are used for the second communication mode communication.
  • the first data frame and the second data frame carry a communication mode indication, where the communication mode indication is used to indicate that the first data frame or the second data frame is transmitted.
  • the communication device is a communication device.
  • the communications device includes a first communications device and a second communications device;
  • the first communications device includes a first transceiver, a first memory, and a first processor connected by a bus
  • the first memory is configured to store a program instruction
  • the first processor is configured to execute a program instruction stored in the memory
  • the first processor is further configured to acquire the first data, and determine a first one for transmitting the first data.
  • the second communication device includes a second transceiver, a second memory, and a second processor connected by a bus, where the second memory is configured to store program instructions, where a second processor for executing program instructions stored in the above memory; the second processor is further configured to obtain a second data, determining a second communication mode for transmitting the second data, selecting a second target transmission resource unit from the set of transmission resource units according to the second communication mode, mapping the second data to the second The target transmission resource unit obtains a second data frame; the second transceiver is configured to transmit the second data frame by using the second target communication mode.
  • the coding resources of any two of the foregoing transmission resource units are different: the code domain resources in the coding resources of any two transmission resource units are different, or any two transmission resource units
  • the pilot resources in the coding resources are different, or the code domain resources and the pilot resources in the coding resources of any two transmission resource units are different.
  • the first communication mode is cellular communication, and the second communication mode is D2D communication; or the first communication mode is D2D communication, and the second communication mode is cellular communication.
  • a seventh aspect of the present invention provides a communication device, which may include: a transceiver, a memory, and a processor; wherein the memory is configured to store program instructions; the processor is configured to invoke the program instructions to perform processing of: instructing a transceiver to be used Receiving a first data frame and a second data frame; determining a first target transmission resource unit for transmitting the first data frame, and determining a second target transmission resource unit for transmitting the second data frame,
  • the first target transmission resource unit and the second target transmission resource unit are different two transmission resource units in the transmission resource unit set, and the transmission resource unit set includes a plurality of transmission resource units, each of the transmission resource units includes a domain resource, a frequency domain resource, and a coding resource, where the coding resource is determined by a code domain resource and/or a pilot resource, and coding resources of any two transmission resource units are different; according to the first target transmission resource unit, Performing demodulation processing on the first data frame to obtain first data, according to the first data and/or
  • the foregoing processor specifically performs: determining whether the first target transmission resource unit belongs to the first group of transmission resource units, if the first target transmission resource unit belongs to the a first group of transmission resource units, determining that a communication mode for transmitting the first data frame is a first communication mode; determining whether the second target transmission resource unit belongs to a second group of transmission resource units, if the second The target transmission resource unit belongs to the second group of transmission resource units, and then determines that the communication mode for transmitting the second data frame is the second communication mode; wherein the transmission resource unit set includes the first group of transmission resource units and The second group of transmission resource units, the first group of transmission resource units includes a plurality of transmission resource units, the second group of transmission resource units includes a plurality of transmission resource units, the first group of transmission resource units, and the The second set of transmission resource units is combined to obtain the set of transmission resource units.
  • the processor further performs: acquiring a transmission resource unit group indication, where the foregoing transmission resource unit group indication is used to indicate that the foregoing transmission resource unit set includes the foregoing first group of transmission resource units and In the second group of transmission resource units, the first group of transmission resource units are used for the first communication mode communication, and the second group of transmission resource units are used for the second communication mode communication.
  • the foregoing processor specifically performs: acquiring a communication mode indication from the first data, determining, according to the communication mode indication acquired from the first data, for transmitting the a communication mode of a data frame is a first communication mode; obtaining a communication mode indication from the second data, determining, according to a communication mode indication acquired from the second data, a communication mode for transmitting the second data frame is a communication mode indication indicating a communication mode used to transmit the first data frame or the second data frame.
  • the first communication mode is cellular communication
  • the second communication mode is D2D communication
  • the first communication mode is D2D communication
  • the second communication mode is cellular communication
  • An eighth aspect of the present invention provides a data transmission system, which may include: the communication device provided by the sixth aspect, and the communication device provided by the seventh aspect.
  • FIG. 1 is a schematic diagram of an application for introducing D2D communication in a cellular network
  • FIG. 2a is a schematic diagram of an application for introducing D2D communication in a cellular network according to an embodiment of the present invention
  • 2b is a schematic diagram of a transmission resource unit according to an embodiment of the present invention.
  • 3a is a schematic diagram of application of a data transmission method according to an embodiment of the present invention.
  • FIG. 3b is a schematic structural diagram of a frame of a MAC PDU according to an embodiment of the present disclosure
  • FIGS. 4a-4b are schematic diagrams of CTU division according to some embodiments of the present invention.
  • 4c-4d are schematic diagrams of coding provided by some embodiments of the present invention.
  • FIG. 5 is a schematic diagram of application of a data transmission method according to another embodiment of the present invention.
  • 6a is a schematic diagram of application of a data transmission method according to another embodiment of the present invention.
  • FIG. 6b is a schematic diagram of application of a data transmission method according to another embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a communication device according to another embodiment of the present invention.
  • 9a is a schematic structural diagram of a data transmission system according to an embodiment of the present invention.
  • 9b is a block diagram showing a partial structure of a mobile phone related to a mobile terminal according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the embodiment of the invention provides a data transmission method for realizing the coexistence of two communication modes under one network on the basis of ensuring the utilization of time-frequency resources.
  • the embodiment of the invention further provides a communication device and a data transmission system.
  • the embodiment of the present invention can be applied to a cellular network in which D2D communication is introduced, and can be applied to other networks capable of implementing two communication modes.
  • a cellular network that introduces D2D communication is taken as an example to the present invention. Carry out a detailed introduction.
  • FIG. 2a is a schematic diagram of an application for introducing D2D communication in a cellular network according to an embodiment of the present invention.
  • D2D communication is introduced in the cellular network, then there is D2D communication and cellular communication in the cellular network.
  • Any one of the UEs may be registered as a D2D communication user, or may be registered as a cellular communication user. Of course, the same UE may be simultaneously registered as a D2D communication user and a cellular communication user.
  • UE1 is simultaneously registered as a D2D communication user and a cellular communication user
  • UE2 and UE3 are registered as D2D communication
  • UE4 and UE5 are registered as cellular communication.
  • the UE1 can perform D2D communication with the UE2, and can also perform cellular communication with the base station. Of course, the UE1 can simultaneously implement D2D communication and cellular communication. UE2 and UE3 can perform D2D communication, and UE4 and UE5 can perform cellular communication.
  • the embodiment of the present invention can be used to implement the coexistence of D2D communication and cellular communication on the basis of ensuring the utilization of time-frequency resources.
  • the embodiments of the present invention are based on time domain resources, frequency domain resources, and coding resources.
  • the three variables define a transmission resource unit in three-dimensional space, and any two transmission resource units are different from each other.
  • FIG. 2b is a schematic diagram of a transmission resource unit according to an embodiment of the present invention. In Fig.
  • the time domain resource is taken as the X axis of the three-dimensional space coordinate
  • the frequency domain resource is taken as the Y axis of the three-dimensional space coordinate
  • the coding resource is taken as the Z axis of the three-dimensional space coordinate.
  • the coding resource is determined by a code domain resource and/or a pilot resource, and the coding resource is used to encode the data.
  • the code domain resource is a resource of a code space for encoding data in a communication system, such as a codebook multiple access (SRAM) codebook, code division multiple access (Code Division Multiple Access, Amplified codewords in CDMA), signatures in Low Density Signature (LDS), etc.
  • the pilot resource can also be said to be a pilot signal, specifically for pilot detection.
  • one code domain resource may correspond to one pilot resource set.
  • the coding resource is a fixed value, and at least one of the time domain resource and the frequency domain resource is used as The amount of change can be regarded as the prior art in this case, that is, the coexistence of D2D communication and cellular communication is realized by different time domain resources or frequency domain resources or time-frequency resources, and will not be described in detail herein.
  • the coding resource is used as the variation, and the time-frequency resource is not used as the basis for discussion. That is, the two different transmission resource units described in the embodiment of the present invention are at least due to the coding resource. Not identical.
  • the coexistence of D2D communication and cellular communication is implemented, mainly when different data transmission modes are used, and different transmission resource units are respectively used, that is, It is said that the transmission resource unit used by the D2D communication and the transmission resource unit used by the cellular communication are two transmission resource units that are different from each other.
  • the first communication device and the second communication device register at least the first communication mode, and the third communication device and the fourth communication device register at least the second communication mode. Meanwhile, the first communication device transmits data to the second communication device through the first communication mode, and the third communication device transmits data to the fourth communication device through the second communication mode. Due to the broadcast characteristic of the wireless communication, the second communication device receives the data transmitted by the third communication device in addition to the data transmitted by the first communication device. Similarly, the fourth communication device receives the data transmitted by the third communication device. Data transmitted by the first communication device is also received.
  • the first communication device registers at least the first communication mode
  • the second communication device registers at least the second communication mode
  • the third communication device simultaneously registers the first communication mode and the second communication mode. Meanwhile, the first communication device transmits data through the first communication mode and the third communication device, the second communication device transmits data through the second communication mode and the third communication device, and the third communication device receives the data transmitted by the first communication device and Data transmitted by the second communication device.
  • the first communication device simultaneously registers the first communication mode and the second communication mode, the second communication device registers at least the first communication mode, and the third communication device registers at least the second communication mode.
  • the first communication device transmits data to the second communication device through the first communication mode
  • the first communication device transmits data to the third communication device through the second communication mode
  • the second communication device receives the data in addition to the broadcast characteristic of the wireless communication device.
  • the third communication device receives the data transmitted by the first communication device to the third communication device.
  • the third communication device receives the data transmitted by the first communication device to itself, and receives the data. The data transmitted by the first communication device to the second communication device.
  • FIG. 3a is a schematic flowchart of a data transmission method according to an embodiment of the present invention. As shown in FIG. 3a, a data transmission method may include:
  • the first communication device acquires the first data, and determines a first communication mode for transmitting the first data.
  • the second communication device acquires the second data and determines a second communication mode for transmitting the second data.
  • the second communication mode is cellular communication; conversely, if the first communication mode is cellular communication, the second communication mode is D2D communication.
  • the first communication device and the second communication device are two communication devices that are different from each other, and the first communication device and the second communication device simultaneously perform data transmission.
  • the first communication device and the second communication device may be the UE of FIG. 2a, and the UE may be a mobile terminal, such as a mobile phone, or a "cellular" phone, and a computer with a mobile terminal, for example, may be portable, pocket-sized , handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with a wireless access network.
  • the first communication device and the second communication device may also be devices on the radio access network side, such as a base station (eNB).
  • eNB base station
  • the first communication device is registered at least as a user who uses the first communication mode
  • the second communication device is registered at least as a user who uses the second communication mode.
  • the first communications device selects a first target transmission resource unit from the set of transmission resource units, and the second communications device selects a second target transmission resource unit from the set of transmission resource units.
  • the first communications device maps the first data to the first target transmission resource unit to obtain a first data frame, and transmits the first data frame by using the first communications mode.
  • the second communication device maps the second data to the second target transmission resource unit to obtain a second data frame, and transmits the second data frame by using the second communication mode.
  • the first target transmission resource unit is different from the second target transmission resource unit.
  • the transmission resource unit set in the embodiment of the present invention includes the transmission resource unit introduced in FIG. 2b.
  • the first target transmission resource unit selected by the first communication device and the second target transmission resource unit selected by the second communication device are different two transmission resource units, and the two different transmission resource units are at least embodied in their coding resources.
  • the coding resources are determined by the code domain resources and/or the pilot resources, the coding resources are different in the code domain resources, or are different in the pilot resources, or are embodied in the code domain resources and the pilot resources. At the same time not the same.
  • each code domain resource corresponds to multiple pilot resources, whether the pilot resources are different, the code domain resources are different, or the pilot resources and the code domain resources are different, the first communication device and the second device are illustrated. Communication devices use different pilot resources.
  • the first communication device selects the first target transmission resource unit and the second communication device selects the second target transmission resource unit, that is, the first communication mode and the second communication mode are simultaneously based on different transmission resource units.
  • the coding resource is determined by the code domain resource and the pilot resource, and the coding resources in each of the two transmission resource units are different, that is, the timing domain resource and the frequency domain resource are not limited, so that the data is transmitted in two communication modes. It can be on the same time-frequency resource or on different time-frequency resources to ensure the utilization of time-frequency resources. At the same time, only by using different coding resources to realize different numbers of two transmission data, thereby completing The first communication device transmits data based on the first communication mode while the second communication device transmits data based on the second communication mode.
  • the coding resources in the transmission resource unit provided by the embodiment of the present invention are determined by the code domain resource and/or the pilot resource, so that there are three cases in which the transmission data is mapped into the transmission resource unit:
  • the first type the coding resource is determined by the code domain resource, that is, the transmission resource unit is determined by the time domain resource, the frequency domain resource, and the code domain resource.
  • the communication device first transmits the resource unit according to the first target.
  • the code domain resource encodes the first data, obtains the information part in the first data frame, and then obtains the frame header by other means, thereby generating a complete first data frame, and then using the first target transmission resource unit
  • the time domain resource transmits the first data frame.
  • the communication device first encodes the second data according to the code domain resource in the second target transmission resource unit, obtains the information part in the second data frame, and then obtains the frame header by other means, thereby generating a complete first And the second data frame is transmitted by using the time domain resource in the second target transmission resource unit.
  • the communication device transmits the resource element from the first target.
  • the pilot signal is obtained from the pilot resource, and then the first data frame is generated according to the pilot signal and the first data, and then the first data frame is transmitted by using the time domain resource in the first target transmission resource unit.
  • the communication device acquires a pilot signal from the pilot resources in the second target transmission resource unit, and then generates a second data frame according to the pilot signal and the second data, and then uses the time in the second target transmission resource unit.
  • the domain resource transmits a second data frame.
  • the third type the coding resource is determined by the code domain resource and the pilot resource, and the communication device encodes the first data according to the code domain resource in the coding resource in the first target transmission resource unit, to obtain the information in the first data frame. And then acquiring a pilot signal from a pilot resource of the coding resource in the first target transmission resource unit, and generating a first data frame according to the obtained pilot signal and the encoded information part. Similarly, the communication device encodes the second data according to the code domain resource in the coding resource in the second target transmission resource unit, obtains the information part in the second data frame, and then transmits the coding in the resource element from the second target.
  • a pilot signal is obtained from a pilot resource of the resource, and a second data frame is generated according to the obtained pilot signal and the encoded information portion.
  • the communication device since the communication device can simultaneously register the first communication mode and the second communication mode, the communication device receiving the data must be able to recognize which communication mode the data is transmitted based on, in the implementation of the present invention There are two ways to provide this example:
  • the transmission resource unit set is divided into two groups, which are a first group of transmission resource units and a second group of transmission resource units, respectively.
  • the first group of transmission resource units includes a part of the transmission resource unit
  • the second group of transmission resource units includes another part of the transmission resource unit.
  • the transmission resource unit in the first group of transmission resource units and the transmission resource unit in the second group of transmission resource units together constitute all of the transmission resource units in the set of transmission resource units. Of course, the same two transmission resource units do not exist in the first group of transmission resource units and the second group of transmission resource units.
  • the first communication mode uses the first set of transmission resource units and the second communication mode uses the second set of transmission resource elements.
  • the target transmission resource unit is selected from the first group of transmission resource units, and if the data is transmitted through the second communication mode, the target transmission is selected from the second group of transmission resource units.
  • Resource unit if the first communication mode is the first communication mode, the first communication device selects the first target transmission resource unit from the first group of transmission resource units, and at this time, the second communication mode is the second In the communication mode, the second communication device selects the second target transmission resource unit from the second group of transmission resource units.
  • the first communication device selects the first target transmission resource unit from the second group of transmission resource units, and at this time, the second communication mode is the first communication mode, and the second communication device A second target transmission resource unit is selected from the first group of transmission resource units.
  • the first target transmission resource unit and the second target transmission resource unit in the embodiment of the present invention are only tables. Two different transmission resource units are shown, not limited to a particular transmission resource unit.
  • the dividing and defining the foregoing set of transmission resource units may be sent by the communication device on the radio access network side to send a transmission resource unit group indication, and the transmission resource is indicated in the transmission resource unit group indication.
  • the set of units includes a first set of transmission resource units for a first communication mode communication and a second set of transmission resource units for a second communication mode communication.
  • the communication device may be a mobile terminal or a computer with a mobile terminal, and may also be a radio access network side device, such as a base station (eNB). Therefore, if the first communication device and the second communication device are mobile terminals or computers with mobile terminals, the base station can broadcast signaling to all mobile terminals in the coverage cell or computers having the mobile terminal, including in the broadcast signaling. There is a transmission resource unit grouping indication. If the first communication device and the second communication device are radio access network side devices, such as a base station (eNB), etc., they have the capability to know which transmission resource units are used in the first communication mode, and which transmission resource units are used. In the second communication mode.
  • eNB base station
  • the foregoing division and limitation of the set of transmission resource units may also be preset in a communication device in a protocol manner. Therefore, when the first communication device and the second communication device perform data transmission, the target transmission resource unit can be acquired from the transmission resource unit of the corresponding packet.
  • Manner 2 Carrying a communication mode indication in the data frame. It can be understood that since the D2D communication application does not have a wide range of cellular communication applications, if the transmission resource units used for D2D communication and cellular communication are defined, it is possible that the transmission resource unit defined for D2D communication is idle when there is no D2D communication, resulting in Waste of transmission resources. Therefore, by increasing the communication mode indication in the data frame to indicate whether the transmission is based on D2D communication or cellular communication, the utilization of the transmission resource unit can be improved. For example, a communication mode indication is added to a MAC frame header of a Protocol Data Unit (PDU) of a Media Access Control (MAC) layer. The PDU format of the MAC layer is as shown in FIG.
  • PDU Protocol Data Unit
  • MAC Media Access Control
  • the MAC PDU includes a MAC SDU and the MAC header includes a subheader as an example.
  • the communication mode is indicated by adding "T" in the subheader of the MAC frame header. When T is 0, it indicates that the communication mode is D2D communication, and when T is 1, it indicates that the communication mode is cellular communication.
  • R is a reserved field of the MAC frame header
  • E is used to indicate whether the current MAC SDU is the last MAC SDU in the MAC PDU
  • LCID indicates the identity (ID) of the logical channel
  • L indicates the phase
  • F indicates the length of the "L” field.
  • the code domain resource in the coding resource provided by the embodiment of the present invention may be a codebook in a sparse code division multiple access (SCMA), or may be a low density signature (Low density signature).
  • SCMA sparse code division multiple access
  • Low density signature Low density signature
  • Signature in LDS The codebook of the SCMA specifies the mapping relationship of the information bits to the time-frequency resource elements of the SCMA codebook, and different users use different codebooks for encoding.
  • the signature in the LDS is the signature of the user, and different users use different signatures.
  • the transmission resource unit can be regarded as a Contention Transmission Unit (CTU).
  • CTU Contention Transmission Unit
  • Each CTU is defined by a time domain resource, a frequency domain resource, and a codebook and/or a pilot resource, and each CTU is defined. Can be reused by multiple users.
  • the four variables of the time domain resource, the frequency domain resource, the codebook and the pilot resource are defined, wherein the coding resource in FIG. 2b is replaced by a codebook, and each codebook corresponds to one pilot resource set. If there are J codebooks, one pilot set corresponding to each codebook has L pilots, and the base station side according to the pilot knowledge The data from different users is not completed, and the channel estimation is completed.
  • the number of users that can be distinguished on each CTU is L*J.
  • the codebook used by the user is determined.
  • the user encodes and maps the information bits that need to be sent by the selected codebook, and finally places the obtained time-frequency resource elements on the time-frequency resources in the CTU for transmission.
  • the pilot resources in the CTU are divided to implement the division of the CTU, including but not limited to the two division modes shown in FIG. 4a and FIG. 4b, where one code This corresponds to L pilot resources, and J codebooks correspond to J*L pilot resources.
  • FIG. 4a some pilot resources are allocated in each codebook for use by the communication device of the D2D communication, the pilot resource P11 in the codebook C1, and the pilot resource P21 in the codebook C2, up to the codebook CJ.
  • the pilot resources PJ1 are all allocated to D2D communication, and the remaining pilot resources are used by the communication device of the cellular communication.
  • FIG. 4a some pilot resources are allocated in each codebook for use by the communication device of the D2D communication, the pilot resource P11 in the codebook C1, and the pilot resource P21 in the codebook C2, up to the codebook CJ.
  • the pilot resources PJ1 are all allocated to D2D communication, and the remaining pilot resources are used by the communication device of the cellular communication.
  • the codebook division that is, all the pilot resources in which some codebooks are located are allocated to the communication device of the D2D communication, for example, the codebooks C1 and C2 are divided into D2D communication, that is, the codebook C1 is used. All pilot resources under C2 are allocated to D2D communication, and the remaining pilot resources are used by the communication device of the cellular communication.
  • the D2D communication and the cellular communication select CTUs corresponding to different pilot resources, and at the same time, the codebooks in the two CTUs are the same.
  • the C1 codebook is used to encode the data, that is, the data is mapped to the fourth time-frequency resource element corresponding to the SCMA codebook.
  • the encoded data is added to the pilot signal provided in the pilot resource to obtain the data frame to be transmitted, and finally the data frame is mapped to the time domain resource in the selected CTU.
  • the cell communication selects the CTU corresponding to the pilot resource of P12, since the codebook corresponding to the P12 pilot resource in the CTU is also C1, the C1 codebook is also used to encode the data, and the data is also mapped to the first time.
  • the frequency resource element and the second time-frequency resource element but because the pilot resources are different, the D2D communication uses the P11 pilot resource to transmit the pilot signal, and the cellular communication uses the P12 pilot resource to transmit the pilot signal, so that the D2D communication And cellular communication does not have interference on the pilot channel, enabling coexistence of D2D communication and cellular communication.
  • the D2D communication and the cellular communication select CTUs corresponding to different pilot resources, and at the same time, the codebooks in the two CTUs are different.
  • the C1 codebook is used to encode the data, that is, the data is mapped to the four time-frequency resource elements corresponding to the SCMA codebook.
  • the encoded data is added to the pilot signal provided in the pilot resource to obtain a data frame to be transmitted, and finally the data frame is mapped to the selected CTU.
  • the time domain resources and the time domain resources formed by the frequency domain resources are transmitted on the time-frequency resources.
  • the CTU corresponding to the pilot resource of P31 is selected by the cellular communication
  • the codebook corresponding to the P31 pilot resource in the CTU is also C3
  • the C3 codebook encodes the data, and the data is mapped to the third in the SCMA.
  • the D2D communication uses the P11 pilot resource to transmit the pilot signal
  • the cellular communication uses the P31 pilot resource to transmit the pilot signal, so that the D2D is used. Communication and cellular communication do not have interference on the pilot channel, enabling coexistence of D2D communication and cellular communication.
  • FIG. 5 is a schematic diagram of application of a data transmission method according to another embodiment of the present invention.
  • a data transmission method can include:
  • the communication device acquires the first data and the second data, and determines a first communication mode for transmitting the first data and a second communication mode for transmitting the second data, respectively.
  • the difference from the embodiment shown in FIG. 3a is that the embodiment shown in FIG. 3a is that two different communication devices simultaneously transmit data through different communication modes, and realize coexistence by using different transmission resource units.
  • the embodiment shown in FIG. 5 is that the same communication device simultaneously performs data transmission through two communication modes, and also transmits data by using different transmission resource units to realize coexistence of two communication modes.
  • the first communication mode and the second communication mode may be D2D communication or cellular communication.
  • the communications device acquires, by the set of transmission resource units, a first target transmission resource unit for transmitting the first data, and obtains, by the set of the transmission resource unit, a second target transmission resource unit for transmitting the second data.
  • the communication device maps the first data to the first target transmission resource unit, obtains the first data frame, and transmits the first data frame by using the first communication mode, and simultaneously mapping the second data to the second target transmission resource unit to obtain the first data frame.
  • the second data frame transmits the second data frame through the second communication mode.
  • the embodiment of the present invention not only realizes simultaneous communication of two communication modes on different two communication devices, but also enables simultaneous communication of two communication modes on the same communication device.
  • FIG. 6a is a schematic flowchart of a data transmission method according to another embodiment of the present invention. As shown in FIG. 6a, a data transmission method may include:
  • the communication device receives the first data frame and the second data frame.
  • the communication device registers the first communication mode, or registers the second communication mode, or simultaneously registers the first communication mode and the second communication mode.
  • the description is made by taking the communication device only registering the first communication mode as an example.
  • the communication device may receive the second transmission in the second communication mode in addition to the first data frame transmitted in the first communication mode due to the broadcast characteristic of the wireless communication. Data Frame.
  • the communications device determines, according to the first data frame, a first target transmission resource unit used for transmitting the first data frame, and determines a first communication mode for transmitting the first data frame.
  • the communications device determines the transmission according to the second data frame. a second target transmission resource unit used by the second data frame, and a second communication mode for determining to transmit the second data frame;
  • the transmission resource unit set is divided into the first group transmission resource unit and the second group transmission resource unit, and the first group transmission resource unit is defined for the first communication mode communication, and the second group transmission is used.
  • the resource unit is used for the second communication mode communication. Therefore, in step 602 of the embodiment of the present invention, when determining, by the communications device, the first target transmission resource unit, the communication device may determine that the first target transmission resource unit belongs to the first group of transmission resource units. Thereby, it is determined that the communication mode for transmitting the first data frame is the first communication mode, and in this way, the communication mode for transmitting the second data is determined to be the second communication mode.
  • the communication device demodulates the first data frame according to the first target transmission resource unit to obtain the first data, and demodulates the second data frame according to the second target transmission resource unit to obtain the second data.
  • the communication device since the communication device only registers the first communication mode, the communication device only needs to pay attention to the first data frame, but the first data frame and the second data frame may be in the When the same time domain resource and the frequency domain resource are transmitted, when the data frame is demodulated, the communication device cannot determine the first data frame that matches the first communication mode by a simple time division or frequency division method, and when When the system uses a non-orthogonal modulation and demodulation method, such as SCMA, LDS, etc., the communication device needs to jointly demodulate the first data frame and the second data frame, instead of simply treating the second data frame as interference.
  • the method of joint demodulation is beneficial to obtain a lower bit error rate under the same signal-to-noise ratio, thereby improving the transmission quality.
  • the communications device hands the first data to a protocol layer that matches the first communications mode to further process the first data for the protocol layer that matches the first communications mode.
  • the second data can no longer be processed further.
  • the communication device registers the first communication mode as an example for description.
  • the communication device registers the second communication mode without registering the first communication mode, so that the communication device delivers the data corresponding to the demodulated second communication mode to the second communication mode.
  • the protocol layer performs further processing, and the data corresponding to the first communication mode can be further processed.
  • the communication device registers the first communication mode and the second communication mode, and the communication device delivers the data corresponding to the demodulated first communication mode to the protocol layer matched by the first communication mode. Further processing is performed, and the demodulated data corresponding to the second communication mode is forwarded to the protocol layer matched by the second communication mode for further processing. The latter two cases will not be described in detail here.
  • determining the target transmission resource unit used for transmitting the data frame is specifically divided into the following three cases:
  • the coding resources in the transmission resource unit are determined by the code domain resources.
  • the communication device obtains the time domain resource and the frequency domain resource in the target transmission resource unit according to the time and frequency of the bearer data frame; secondly, in this case, the code domain resource is scheduled and allocated by the system of the communication device, and the communication device determines the target according to the system scheduling information.
  • the code domain resource in the transmission resource unit is obtained from the time domain resource, the frequency domain resource, and the code domain resource.
  • the coding resources in the transmission resource unit are determined by the pilot resources.
  • the communication device obtains the time domain resource and the frequency domain resource in the target transmission resource unit according to the time and frequency of the bearer transmission data frame; secondly, the communication device detects the pilot portion of the data frame (for example, the pilot is an orthogonal sequence, The correlation operation can be used to detect the pilot resources.
  • the target transmission resource unit is obtained from the time domain resource, the frequency domain resource, and the pilot resource.
  • the coding resources in the transmission resource unit are determined by pilot resources and code domain resources.
  • the communication device obtains the time domain resource and the frequency domain resource in the target transmission resource unit according to the time and frequency of carrying the first data frame; secondly, the communication device detects the pilot portion of the data frame (for example, the pilot is an orthogonal sequence) , the correlation operation can be used to detect), and the pilot resource is determined.
  • the code domain resource is determined according to a mapping relationship of the pilot resource to the code domain resource specified by the communication device.
  • the target transmission resource unit is obtained by the time domain resource, the frequency domain resource, the pilot resource and the code domain resource.
  • step 603 the demodulation process of the data frame is divided into the following three cases:
  • the coding resources in the transmission resource unit are determined by the code domain resources. Demodulating the data frame using the code domain resource in the determined target transmission resource unit;
  • the coding resources in the transmission resource unit are determined by the pilot resources.
  • the data frame is demodulated using a demodulation method corresponding to the pilot resource in the determined target transmission resource unit. For example, if the pilot resource corresponds to some modulation and coding combination of data, the third communication device and the fourth communication device demodulate the data frame by using a corresponding modulation and coding manner.
  • the coding resources in the transmission resource unit are determined by pilot resources and code domain resources.
  • the data frame is demodulated by using the code domain resource corresponding to the pilot resource in the determined target transmission resource unit.
  • the pilot resource corresponds to the SCMA codebook used when encoding the data frame
  • the third communication device and the fourth communication device use the codebook to demodulate the data frame.
  • the third communication device and the fourth communication device will also store the transmission resource unit set divided into the first group of transmission resource units and the second group of transmission resource units.
  • how to define the grouping can refer to the manner described above, and details are not described herein again.
  • FIG. 6b is a schematic flowchart of a data transmission method according to another embodiment of the present invention. As shown in FIG. 6b, a data transmission method may include:
  • the communication device receives the first data frame and the second data frame.
  • the first communication mode is also registered by the communication device as an example.
  • the communications device determines, according to the first data frame, a first target transmission resource unit that is used to transmit the first data frame, and determines, according to the second data frame, a second target transmission resource unit that is used to transmit the second data frame.
  • the difference from the embodiment shown in FIG. 6a is that, in the embodiment of the present invention, the first communication mode for transmitting the first data frame is indicated by carrying the communication mode indication in the data frame, and the second transmission is performed. a second communication mode of the data frame. Therefore, in the embodiment of the present invention, when determining the target transmission resource unit used by the first data frame and the second data frame, it is not determined that the first data frame and the second data are transmitted. The communication mode of the frame.
  • the communication device demodulates the first data frame according to the first target transmission resource unit, to obtain the first data, and demodulates the second data frame according to the second target transmission resource unit to obtain the second data.
  • the communication device acquires a communication mode indication from the first data, determines a first communication mode for transmitting the first data frame according to the communication mode indication acquired from the first data, and obtains a communication mode indication from the second data, according to the The communication mode indication of the second data acquisition determines a second communication mode for transmitting the second data frame;
  • the communications device delivers the first data to a protocol layer that matches the first communications mode to further process the first data for a protocol layer that matches the first communications mode.
  • the second data can no longer be processed further.
  • the communication device registers the first communication mode, in order to reduce the error rate during demodulation, although the first data frame and the second data frame are simultaneously demodulated, The first data demodulated by the first data frame is further processed, and the second data demodulated by the second data frame can be further processed.
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present invention. As shown in FIG. 7, a communication device 700 may include:
  • the processing module 710 is configured to acquire first data and second data, and determine a first communication mode for transmitting the first data and a second communication mode for transmitting the second data; according to the first communication mode Selecting a first target transmission resource unit from the set of transmission resource units, and selecting a second target transmission resource unit from the set of transmission resource units according to the second communication mode; mapping the first data to the first target transmission a resource unit, obtaining a first data frame, mapping the second data to the second target transmission resource unit to obtain a second data frame;
  • the transmitting module 720 is configured to transmit the first data frame by using the first communication mode, and transmit the second data frame by using the second target communication mode.
  • the processing module is specifically configured to select the first target transmission resource unit from the first group of transmission resource units according to the first communication mode, and according to the second communication mode. And selecting, by the second group of transmission resource units, the second target transmission resource unit, where the transmission resource unit set includes the first group of transmission resource units and the second group of transmission resource units, where the first group of transmission resource units includes multiple And a transmission resource unit, where the second group of transmission resource units includes a plurality of transmission resource units, and the first group of transmission resource units and the second group of transmission resource units are combined to obtain the transmission resource unit set.
  • the processing module 710 is further configured to: obtain a transmission resource unit group indication, where the foregoing transmission resource unit group indication is used to indicate that the foregoing transmission resource unit set includes the foregoing first group of transmission resource units and In the second group of transmission resource units, the first group of transmission resource units are used for the first communication mode communication, and the second group of transmission resource units are used for the second communication mode communication.
  • the first data frame and the second data frame carry a communication mode indication, where the communication mode indication is used to indicate that the first data frame or the second data frame is transmitted.
  • the coding resources of any two of the foregoing transmission resource units are different: the code domain resources in the coding resources of any two transmission resource units are different, or any two transmission resource units
  • the pilot resources in the coding resources are different, or the code domain resources and the pilot resources in the coding resources of any two transmission resource units are different.
  • the communication device is a communication device.
  • the foregoing communications device includes a first communications device and a second communications device; wherein the first communications device and the second communications device are independent two communications devices, each having its own processing a module and a transmission module, the processing module of the first communication device is configured to acquire the first data, determine a first communication mode for transmitting the first data, and select the first target from the set of transmission resource units according to the first communication mode Transmitting a resource unit, mapping the first data to the first target transmission resource unit, to obtain a first data frame, by using the first communication The mode transmits the first data frame, and the transmission module of the first communication device is configured to transmit the first data frame by using the first communication mode.
  • the processing module of the second communication device is configured to acquire second data, determine a second communication mode for transmitting the second data, and select a second target transmission resource unit from the set of transmission resource units according to the second communication mode, Mapping the second data to the second target transmission resource unit to obtain a second data frame; and the transmission module of the second communication device is configured to transmit the second data frame by using the second target communication mode.
  • the first communication mode is cellular communication
  • the second communication mode is D2D communication
  • the first communication mode is D2D communication
  • the second communication mode is cellular communication
  • FIG. 8 is a schematic structural diagram of a communication device according to another embodiment of the present invention. As shown in FIG. 8, a communication device 800 may include:
  • the receiving module 810 is configured to receive the first data frame and the second data frame.
  • the processing module 820 is configured to determine a first target transmission resource unit for transmitting the first data frame, and determine a second target transmission resource unit for transmitting the second data frame, the first target transmission resource
  • the unit and the second target transmission resource unit are different two transmission resource units in the transmission resource unit set, and the transmission resource unit set includes a plurality of transmission resource units, each of the transmission resource units includes a time domain resource and a frequency domain.
  • the first target transmission resource unit the first data frame Demodulating processing to obtain first data, determining, according to the first data and/or the first target transmission resource unit, a first communication mode for transmitting the first data frame; according to the second target Transmitting a resource unit, performing demodulation processing on the second data frame to obtain second data, according to the second data and/or the second target transmission resource Element, determining a second communication mode for transmitting the second data frame.
  • the processing module 820 is specifically configured to determine whether the first target transmission resource unit belongs to the first group of transmission resource units, if the first target transmission resource unit belongs to the a first group of transmission resource units, determining that a communication mode for transmitting the first data frame is a first communication mode; determining whether the second target transmission resource unit belongs to a second group of transmission resource units, if the second The target transmission resource unit belongs to the second group of transmission resource units, and then determines that the communication mode for transmitting the second data frame is the second communication mode; wherein the transmission resource unit set includes the first group of transmission resource units and The second group of transmission resource units, the first group of transmission resource units includes a plurality of transmission resource units, the second group of transmission resource units includes a plurality of transmission resource units, the first group of transmission resource units, and the The second set of transmission resource units is combined to obtain the set of transmission resource units.
  • the receiving module 810 is further configured to: obtain a transmission resource unit group indication, where the transmission resource unit group indication is used to indicate that the transmission resource unit set includes the first group of transmissions a resource unit and the second group of transmission resource units, the first group of transmission resource units being for the first communication mode communication, and the second group of transmission resource units for the second communication mode communication.
  • the processing module 820 is further configured to: obtain a communication mode indication from the first data, and determine, according to the communication mode indication acquired from the first data, to transmit the The communication mode of the first data frame is a first communication mode; obtaining a communication mode indication from the second data, determining, according to the communication mode indication acquired from the second data, a communication mode for transmitting the second data frame is a second communication mode; the communication mode indication is for indicating a communication mode employed by transmitting the first data frame or the second data frame.
  • the first communication mode is cellular communication
  • the second communication mode is D2D communication
  • the first communication mode is D2D communication
  • the second communication mode is cellular communication
  • FIG. 9a is a schematic structural diagram of a data transmission system according to an embodiment of the present invention. As shown in FIG. 9a, a data transmission system may include:
  • the communication device may be a mobile terminal, or may be a base station, and the mobile terminal may be a mobile phone.
  • FIG. 9b is a block diagram showing a partial structure of a mobile phone related to a mobile terminal according to an embodiment of the present invention.
  • the mobile phone includes: a radio frequency (RF) circuit 910, a memory 920, an input unit 930, a display unit 940, a sensor 950, an audio circuit 960, a wireless fidelity (WiFi) module 970, and a processor 980.
  • RF radio frequency
  • the structure of the handset shown in Figure 9b does not constitute a limitation to the handset, and may include more or fewer components than those illustrated, or some components may be combined, or different components may be arranged.
  • the RF circuit 910 can be used for receiving and transmitting signals during and after receiving or transmitting information, in particular, after receiving the downlink information of the base station, and processing it to the processor 980; in addition, transmitting the designed uplink data to the base station.
  • RF circuit 910 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like.
  • LNA Low Noise Amplifier
  • RF circuitry 910 can also communicate with the network and other devices via wireless communication.
  • the above wireless communication may use any communication standard or protocol, including but not limited to Global System of Mobile communication (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (Code Division). Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), E-mail, Short Messaging Service (SMS), and the like.
  • GSM Global System of Mobile communication
  • GPRS General Packe
  • the memory 920 can be used to store software programs and modules, and the processor 980 executes various functional applications and data processing of the mobile phone by running software programs and modules stored in the memory 920.
  • the memory 920 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.).
  • memory 920 can include high speed random access memory, and can also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
  • the input unit 930 can be configured to receive input numeric or character information and to generate key signal inputs related to user settings and function controls of the handset.
  • the input unit 930 may include a touch panel 931 and other input devices 932.
  • the touch panel 931 also referred to as a touch screen, can collect touch operations on or near the user (such as a user using a finger, a stylus, or the like on the touch panel 931 or near the touch panel 931. Operation), and drive the corresponding connecting device according to a preset program.
  • the touch panel 931 can include a touch detection device and Touch the two parts of the controller.
  • the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information.
  • the processor 980 is provided and can receive commands from the processor 980 and execute them.
  • the touch panel 931 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves.
  • the input unit 930 may also include other input devices 932.
  • other input devices 932 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, joysticks, and the like.
  • the display unit 940 can be used to display information input by the user or information provided to the user as well as various menus of the mobile phone.
  • the display unit 940 can include a display panel 941.
  • the display panel 941 can be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.
  • the touch panel 931 can cover the display panel 941. When the touch panel 931 detects a touch operation on or near the touch panel 931, the touch panel 931 transmits to the processor 980 to determine the type of the touch event, and then the processor 980 according to the touch event. The type provides a corresponding visual output on display panel 941.
  • the touch panel 931 and the display panel 941 are used as two independent components to implement the input and input functions of the mobile phone, in some embodiments, the touch panel 931 can be integrated with the display panel 941. Realize the input and output functions of the phone.
  • the handset may also include at least one type of sensor 950, such as a light sensor, motion sensor, and other sensors.
  • the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the display panel 941 according to the brightness of the ambient light, and the proximity sensor may close the display panel 941 and/or when the mobile phone moves to the ear. Or backlight.
  • the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity.
  • the mobile phone can be used to identify the gesture of the mobile phone (such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; as for the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer Narration.
  • the gesture of the mobile phone such as horizontal and vertical screen switching, related Game, magnetometer attitude calibration
  • vibration recognition related functions such as pedometer, tapping
  • the mobile phone can also be configured with gyroscopes, barometers, hygrometers, thermometers, infrared sensors and other sensors, no longer Narration.
  • An audio circuit 960, a speaker 961, and a microphone 962 can provide an audio interface between the user and the handset.
  • the audio circuit 960 can transmit the converted electrical data of the received audio data to the speaker 961, and convert it into a sound signal output by the speaker 961.
  • the microphone 962 converts the collected sound signal into an electrical signal, and the audio circuit 960 After receiving, it is converted into audio data, and then processed by the audio data output processor 980, sent to the other mobile phone via the RF circuit 910, or outputted to the memory 920 for further processing.
  • WiFi is a short-range wireless transmission technology
  • the mobile phone can help users to send and receive emails, browse web pages, and access streaming media through the WiFi module 970, which provides users with wireless broadband Internet access.
  • FIG. 9b shows the WiFi module 970, it can be understood that it does not belong to the essential configuration of the mobile phone, and can be omitted as needed within the scope of not changing the essence of the invention.
  • the processor 980 is the control center of the handset, which connects various portions of the entire handset using various interfaces and lines, by executing or executing software programs and/or modules stored in the memory 920, and invoking data stored in the memory 920, executing The phone's various functions and processing data, so that the overall monitoring of the phone.
  • the processor 980 may include one or more processing units; preferably, the processor 980 may integrate an application processor and a modem processor, where the application processor mainly processes an operating system, a user interface, an application, and the like.
  • the modem processor mainly processes none Line communication. It will be appreciated that the above described modem processor may also not be integrated into the processor 980.
  • the handset also includes a power source 990 (such as a battery) that supplies power to the various components.
  • a power source 990 such as a battery
  • the power source can be logically coupled to the processor 980 through a power management system to manage functions such as charging, discharging, and power management through the power management system.
  • the mobile phone may further include a camera, a Bluetooth module, and the like, and details are not described herein again.
  • the processor 980 included in the mobile phone further has the following functions: acquiring first data and second data, and determining a first communication mode for transmitting the first data and determining to transmit the foregoing a second communication mode of the second data; selecting, according to the first communication mode, the first target transmission resource unit from the set of transmission resource units, and selecting the second target transmission resource from the set of the transmission resource units according to the second communication mode a unit, where the foregoing transmission resource unit set includes a plurality of transmission resource units, each of the transmission resource units includes a time domain resource, a frequency domain resource, and an encoding resource, where the coding resource is determined by a code domain resource and/or a pilot resource, where any two The coding resources of the transmission resource units are different, the second target transmission resource unit is different from the first target transmission resource unit; mapping the first data to the first target transmission resource unit to obtain the first data frame, Mapping the second data to the second target transmission resource unit to obtain the second data frame;
  • the RF circuit 910 is configured to transmit the first data frame by using the first communication mode, and transmit the second data frame by using the second target communication mode.
  • the processor 980 is specifically configured to select the first target transmission resource unit from the first group of transmission resource units according to the first communication mode, and according to the second communication. a mode, the second target transmission resource unit is selected from the second group of transmission resource units, where the transmission resource unit set includes the first group of transmission resource units and the second group of transmission resource units, where the first group of transmission resource units includes multiple The transmission resource unit, the second group of transmission resource units includes a plurality of transmission resource units, and the first group of transmission resource units and the second group of transmission resource units are combined to obtain the transmission resource unit set.
  • the processor 980 is further configured to: acquire a transmission resource unit group indication, where the foregoing transmission resource unit group indication is used to indicate that the foregoing transmission resource unit set includes the foregoing first group of transmission resource units and In the second group of transmission resource units, the first group of transmission resource units are used for the first communication mode communication, and the second group of transmission resource units are used for the second communication mode communication.
  • the first data frame and the second data frame carry a communication mode indication, where the communication mode indication is used to indicate that the first data frame or the second data frame is transmitted.
  • the coding resources of any two of the foregoing transmission resource units are different: the code domain resources in the coding resources of any two transmission resource units are different, or any two transmission resource units
  • the pilot resources in the coding resources are different, or the code domain resources and the pilot resources in the coding resources of any two transmission resource units are different.
  • the first communication mode is cellular communication
  • the second communication mode is D2D communication
  • the first communication mode is D2D communication
  • the second communication mode is cellular communication
  • the RF circuit 910 included in the mobile phone further has the following functions: receiving a data frame, where the data frame is obtained by mapping the transmission data to a target transmission resource unit, and the target transmission resource unit is transmitting.
  • a transmission resource unit in the resource unit set where the transmission resource unit set includes a plurality of transmission resource units, each of the transmission resource units includes a time domain resource, a frequency domain resource, and an encoding resource, where the coding resource is determined by the code domain resource and the pilot resource.
  • the coding resources of any two transmission resource units are different;
  • the processor 980 is further configured to: determine, according to the data frame, the target transmission resource unit for transmitting the data frame; perform demodulation processing on the data frame according to the target transmission resource unit, to obtain the transmission data, according to the foregoing And transmitting the data and/or the target transmission resource unit to determine a target communication mode for transmitting the data frame, where the target communication mode is the first communication mode or the second communication mode.
  • the processor 980 is specifically configured to: if it is determined that the target transmission resource unit belongs to the first group of transmission resource units, determine that the target communication mode transmission for transmitting the data frame is a communication mode; if it is determined that the target transmission resource unit belongs to the second group of transmission resource units, determining that the target communication mode for transmitting the data frame is transmitted to the second communication mode; wherein the transmission resource unit set includes the first group a transmission resource unit and the second group of transmission resource units, the first group of transmission resource units comprising a plurality of transmission resource units, the second group of transmission resource units comprising a plurality of transmission resource units, the first group of transmission resource units and the foregoing The two sets of transmission resource units are combined to obtain the above-mentioned transmission resource unit set.
  • the processor 980 is further configured to: acquire a transmission resource unit group indication, where the foregoing transmission resource unit group indication is used to indicate that the foregoing transmission resource unit set includes the foregoing first group of transmission resource units and In the second group of transmission resource units, the first group of transmission resource units are used for the first communication mode communication, and the second group of transmission resource units are used for the second communication mode communication.
  • the processor 980 is further configured to: obtain a communication mode indication from the data frame, where the communication mode indication is used to indicate that the target communication mode for transmitting the data frame is the first Communication mode or the above second communication mode.
  • the first communication mode is cellular communication or device-to-device D2D communication
  • the second communication mode is cellular communication or D2D communication; if the first communication mode is cellular communication, the foregoing The second communication mode is D2D communication; if the first communication mode is D2D communication, the second communication mode is cellular communication.
  • FIG. 10 is a schematic structural diagram of a base station according to an embodiment of the present invention.
  • the base station 1000 may include at least one processor 1001 (eg, a CPU), at least one network interface or other communication interface, a memory 1002, and a transceiver. 1003 and at least one communication bus for implementing connection communication between the devices.
  • the processor 1001 is configured to execute executable modules, such as computer program instructions, stored in the memory 1002.
  • the memory 1002 may include high speed random access memory (RAM), and may also include non-volatile memory, such as at least one disk storage.
  • the communication connection between the system gateway and at least one other network element is implemented by at least one network interface (which may be wired or wireless), and an Internet, a wide area network, a local network, a metropolitan area network, etc. may be used.
  • program instructions are stored in the memory 1002, and the program instructions may be executed by the processor 1001.
  • the processor 1001 specifically performs the following steps: acquiring first data and second data, And determining a first communication mode for transmitting the first data and determining a second communication mode for transmitting the second data; selecting, according to the first communication mode, a first target transmission resource unit from the set of transmission resource units, And selecting, according to the second communication mode, the second target transmission resource unit from the foregoing set of transmission resource units, where
  • the foregoing transmission resource unit set includes a plurality of transmission resource units, each of the transmission resource units includes a time domain resource, a frequency domain resource, and an encoding resource, where the coding resource is determined by a code domain resource and/or a pilot resource, and any two transmission resource units
  • the second target transmission resource unit is different from the first target transmission resource unit; the first data is mapped to the first target transmission resource unit to obtain a first data frame, and the second data is mapped.
  • the transceiver 1003 is configured to transmit the first data frame by using the first communication mode, and transmit the second data frame by using the second target communication mode.
  • the processor 1001 is specifically configured to select the first target transmission resource unit from the first group of transmission resource units according to the first communication mode, and according to the second communication. a mode, the second target transmission resource unit is selected from the second group of transmission resource units, where the transmission resource unit set includes the first group of transmission resource units and the second group of transmission resource units, where the first group of transmission resource units includes multiple The transmission resource unit, the second group of transmission resource units includes a plurality of transmission resource units, and the first group of transmission resource units and the second group of transmission resource units are combined to obtain the transmission resource unit set.
  • the processor 1001 is further configured to: obtain a transmission resource unit group indication, where the foregoing transmission resource unit group indication is used to indicate that the foregoing transmission resource unit set includes the first group of transmission resource units and In the second group of transmission resource units, the first group of transmission resource units are used for the first communication mode communication, and the second group of transmission resource units are used for the second communication mode communication.
  • the first data frame and the second data frame carry a communication mode indication, where the communication mode indication is used to indicate that the first data frame or the second data frame is transmitted.
  • the coding resources of any two of the foregoing transmission resource units are different: the code domain resources in the coding resources of any two transmission resource units are different, or any two transmission resource units
  • the pilot resources in the coding resources are different, or the code domain resources and the pilot resources in the coding resources of any two transmission resource units are different.
  • the first communication mode is cellular communication
  • the second communication mode is D2D communication
  • the first communication mode is D2D communication
  • the second communication mode is cellular communication
  • the memory 1002 stores program instructions, which may be executed by the processor 1001, and the transceiver 1003 is further configured to perform receiving data frames, where the data frames are mapped to the target transmission resource unit.
  • the target transmission resource unit is a transmission resource unit in a transmission resource unit set, where the transmission resource unit set includes multiple transmission resource units, each of the transmission resource units includes a time domain resource, a frequency domain resource, and a coding resource, and the foregoing coding resource Determined by the code domain resource and the pilot resource, the coding resources of any two transmission resource units are different;
  • the processor 1001 specifically performs the following steps: determining, according to the data frame, the target transmission resource unit for transmitting the data frame; and performing demodulation processing on the data frame according to the target transmission resource unit to obtain the foregoing transmission data, And determining, according to the foregoing transmission data and/or the target transmission resource unit, a target communication mode for transmitting the data frame, where the target communication mode is a first communication mode or a second communication mode.
  • the processor 1001 is specifically configured to: if the target transmission resource is determined The source unit belongs to the first group of transmission resource units, and then determines that the target communication mode for transmitting the data frame is transmitted as the first communication mode; if it is determined that the target transmission resource unit belongs to the second group of transmission resource units, determining to transmit the foregoing The target communication mode of the data frame is transmitted to the second communication mode; wherein the transmission resource unit set includes the first group of transmission resource units and the second group of transmission resource units, and the first group of transmission resource units includes multiple transmission resource units
  • the second group of transmission resource units includes a plurality of transmission resource units, and the first group of transmission resource units and the second group of transmission resource units are combined to obtain the transmission resource unit set.
  • the processor 1001 is further configured to: obtain a transmission resource unit group indication, where the foregoing transmission resource unit group indication is used to indicate that the foregoing transmission resource unit set includes the first group of transmission resource units and In the second group of transmission resource units, the first group of transmission resource units are used for the first communication mode communication, and the second group of transmission resource units are used for the second communication mode communication.
  • the processor 1001 is further configured to: obtain a communication mode indication from the data frame, where the communication mode indication is used to indicate that the target communication mode for transmitting the data frame is the first Communication mode or the above second communication mode.
  • the first communication mode is cellular communication or device-to-device D2D communication
  • the second communication mode is cellular communication or D2D communication; if the first communication mode is cellular communication, the foregoing The second communication mode is D2D communication; if the first communication mode is D2D communication, the second communication mode is cellular communication.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention which is essential or contributes to the prior art, or all or part of the technical solution, may be embodied in the form of a software product stored in a storage medium. , including a number of instructions to make a computer device (available All or part of the steps of the method of the various embodiments of the present invention are performed by a personal computer, server, or network device.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

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Abstract

L'invention concerne un procédé de transmission de données, et un dispositif et un système de communication, servant à assurer la coexistence de deux modes de communication sur la base de l'assurance du taux d'utilisation d'une ressource temps-fréquence. Le procédé selon les modes de réalisation de la présente invention consiste : en ce qu'un dispositif de communication acquiert de premières données et de deuxièmes données, et détermine un premier mode de communication pour la transmission des premières données et un deuxième mode de communication pour la transmission des deuxièmes données ; en ce qu'une première unité cible de ressources de transmission est sélectionnée parmi un ensemble d'unités de ressources de transmission selon le premier mode de communication, et en ce qu'une deuxième unité cible de ressources de transmission est sélectionnée parmi l'ensemble d'unités de ressources de transmission selon le deuxième mode de communication ; et en ce que les premières données sont mappées vers la première unité cible de ressources de transmission pour obtenir une première trame de données, en ce que la première trame de données est transmise grâce au premier mode de communication, en ce que les deuxièmes données sont mappées vers la deuxième unité cible de ressources de transmission pour obtenir une deuxième trame de données, et en ce que la deuxième trame de données est transmise grâce au deuxième mode cible de communication.
PCT/CN2017/070765 2016-02-19 2017-01-10 Procédé de transmission de données, et dispositif et système de communication WO2017140194A1 (fr)

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