WO2016045037A1 - Procédé d'envoi de signal, procédé de réception de signal et dispositif associé - Google Patents

Procédé d'envoi de signal, procédé de réception de signal et dispositif associé Download PDF

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Publication number
WO2016045037A1
WO2016045037A1 PCT/CN2014/087407 CN2014087407W WO2016045037A1 WO 2016045037 A1 WO2016045037 A1 WO 2016045037A1 CN 2014087407 W CN2014087407 W CN 2014087407W WO 2016045037 A1 WO2016045037 A1 WO 2016045037A1
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WIPO (PCT)
Prior art keywords
synchronization
subframe
control channel
signal
synchronization signal
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PCT/CN2014/087407
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English (en)
Chinese (zh)
Inventor
黎超
萨特瑞•菲利普
Original Assignee
华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201480013811.3A priority Critical patent/CN106031269B/zh
Priority to PCT/CN2014/087407 priority patent/WO2016045037A1/fr
Publication of WO2016045037A1 publication Critical patent/WO2016045037A1/fr

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    • 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 signal transmitting method, a signal receiving method, and related devices.
  • D2D Device to Device
  • 3GPP 3rd Generation Patnership Project
  • D2D technology because there is less participation of base stations, there is a need for more coordinated mechanisms between devices.
  • One of the mechanisms is that synchronization needs to be established between multiple devices, so it is necessary to send synchronization signals between multiple devices.
  • some basic control information needs to be broadcast through a synchronous control channel.
  • the synchronization signal and the synchronization control channel only occupy part of the resources of the transmitted synchronization signal subframe or the synchronization control channel subframe, and are synchronized. There are still many time-frequency resources in the signal sub-frame or the synchronization control channel sub-frame that are not utilized, resulting in waste of time-frequency resources.
  • the embodiment of the invention provides a signal sending method, a signal receiving method and a related device thereof, which are used for effectively utilizing unoccupied resources in a synchronization signal subframe and/or a synchronization control channel subframe, thereby improving system resources. Utilization.
  • a first aspect of the embodiments of the present invention provides a signaling method, including:
  • the transmitting end device determines a synchronization signal sub-frame of the device to the device D2D and/or an unoccupied resource in the synchronization control channel sub-frame, where the synchronization signal sub-frame includes a synchronization signal, and the synchronization control channel sub-frame includes synchronization control channel;
  • the transmitting device sends the loaded data to the receiving device.
  • the transmitting end device is not occupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the steps to load data on the resource also include:
  • the transmitting end device loads the first reference signal in the synchronization signal subframe, which is not occupied by the synchronization signal and is different from the synchronization signal. ;
  • the transmitting end device loads the symbol that is not occupied by the synchronization control channel and is different from the synchronization control channel in the synchronization control channel subframe.
  • the transmitting end device When the synchronization signal subframe or the synchronization control channel subframe includes both the synchronization signal and the synchronization control channel, the transmitting end device is not synchronized in the synchronization signal subframe or the synchronization control channel subframe. And the synchronization control channel is occupied, and the third reference signal is loaded on the symbol different from the synchronization signal and the synchronization control channel.
  • the first reference signal, the second reference signal, or the third reference signal are respectively determined by a unique Sequence generation, and its corresponding sequence generation methods include:
  • the transmitting end device is not occupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the steps to load data on the resource also include:
  • the transmitting end device superimposes and loads the fourth reference signal on the symbol occupied by the synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting end device is not occupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the steps to load data on the resource also include:
  • the transmitting end device is in the synchronization signal subframe and/or the synchronization control channel.
  • loading the fifth reference signal specifically includes:
  • the transmitting end device generates the fifth reference signal at a position that does not overlap the bandwidth of the synchronization signal or the synchronization control channel on the bandwidth of the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the resource that is not occupied by the transmitting end device in the synchronization signal subframe and/or the control channel subframe Before the step of loading data it also includes:
  • the transmitting end device determines whether a quasi-co-located QCL is found between the respective synchronization sources in the group, and the QCL is used to indicate that the signals sent by the multiple transmitting end devices in the discovery group can be approximated as signals from the same station.
  • the synchronization source includes a transmitting end device and a receiving end device in the discovery group;
  • the demodulation reference signal is not loaded on the synchronization signal subframe or the synchronization control channel subframe, or is outside the bandwidth of the synchronization signal or the synchronization control channel. Loading a fifth reference signal at the location;
  • the fourth reference signal is superimposed and loaded on the symbol occupied by the synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe, or
  • the first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal in the synchronization signal subframe including the synchronization control channel, and is not occupied by the synchronization control channel in the synchronization control channel subframe that does not include the synchronization signal.
  • a third reference signal is loaded on the symbols of different positions of the control channel.
  • the method according to claim 7 wherein the transmitting end device Before the step of judging whether it is a quasi-co-site QCL between each synchronization source in the group, the method further includes:
  • the transmitting end device When it is determined that the transmitting end device is not a synchronous source transmitter, triggering, by the transmitting end device, a step of determining whether the respective synchronization sources in the group are quasi-co-located QCLs;
  • the demodulation reference signal is not loaded on the synchronization signal subframe or the synchronization control channel subframe, or is located outside the bandwidth of the synchronization signal or the synchronization control channel.
  • the first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal, and is not occupied by the synchronization control channel and is different from the synchronous control channel in the synchronization control channel subframe that does not include the synchronization signal.
  • the second reference signal is loaded on the symbol, and is not occupied by the synchronization signal and the synchronization control channel and is synchronized with the synchronization signal and the synchronization control channel in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel.
  • the third reference signal is loaded on the symbols of different positions.
  • the data is data of a D2D link, or a cellular link. data.
  • the transmitting end device when the data is cellular link data, the transmitting end device And the step of determining, by the transmitting end device, the synchronization signal subframe of the device D2D and/or the unoccupied resource in the synchronization control channel subframe, the method further includes:
  • first indication information that is sent by the base station, where the first indication information is used to indicate whether a subframe currently transmitted by the cellular terminal is a synchronization signal subframe and/or a synchronization control channel subframe;
  • the transmitting device is triggered to determine a device to the synchronization signal subframe of the device D2D and/or the unoccupied resource in the synchronization control channel subframe.
  • the transmitting end device is in the synchronization signal subframe and/or
  • the step of loading data on the unoccupied resources in the synchronization control channel subframe further includes:
  • the transmitting device performs rate matching on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel.
  • the unoccupied resources include:
  • Subframes, symbols, or bandwidth that are not occupied by the synchronization signal and/or the synchronization control channel are not occupied by the synchronization signal and/or the synchronization control channel.
  • the bandwidth of the data when the bandwidth of the data is greater than the synchronization signal or synchronization
  • the bandwidth of the data does not span the bandwidth of the synchronization signal or the synchronization control channel; when the bandwidth of the data is less than the bandwidth of the synchronization signal or the synchronization control channel, the bandwidth of the data is in the synchronization Within the bandwidth of the signal or synchronization control channel.
  • the synchronization signal includes a primary synchronization signal and a secondary synchronization signal
  • Each synchronization signal subframe includes two slots before and after, and each slot in the synchronization signal subframe of the extended cyclic prefix CP includes six symbols of 0 to 5, each of the synchronization signal subframes of the normal cyclic prefix CP.
  • the time slot includes seven symbols from 0 to 6;
  • the primary synchronization signal and the secondary synchronization signal have the same interval in the two slots before and after;
  • the primary synchronization signal and the secondary synchronization signal occupy symbol 1 and symbol 2 in two slots before and after the synchronization signal subframe ;
  • the primary synchronization signal and the secondary synchronization signal occupy symbols 1 and 2 in the two slots before and after the synchronization signal subframe. Symbol 3;
  • the synchronization signal subframe is a synchronization signal subframe of the extended cyclic prefix CP
  • the primary synchronization signal and the secondary synchronization signal occupy symbol 0 and symbol 1 in the previous time slot of the synchronization signal subframe, and occupy symbols 3 and 4 in the subsequent time slot;
  • the primary synchronization signal and the secondary synchronization signal occupy symbol 2 and in two slots before and after the synchronization signal subframe.
  • the primary synchronization signal and the secondary synchronization signal occupy symbol 2 and in two slots before and after the synchronization signal subframe.
  • the primary synchronization signal and the secondary synchronization signal occupy a symbol 0 in the previous time slot of the synchronization signal subframe. And symbol 1, and occupy symbol 4 and symbol 5 in the latter slot.
  • each synchronization signal subframe includes two slots before and after,
  • Each slot in the synchronization signal subframe of the extended cyclic prefix CP includes six symbols of 0 to 5, and each slot in the synchronization signal subframe of the normal cyclic prefix CP includes seven symbols of 0 to 6;
  • the synchronous control channel occupies three or four symbols different from the position of the synchronization signal in the synchronization signal subframe.
  • the synchronous control channel includes: a first synchronous control channel and a second synchronous control channel, the first synchronous control channel is loaded by the first transmitting end device, and the second synchronous control channel is loaded by the second transmitting end device.
  • the first synchronization control channel and the second synchronization control channel occupy different synchronization signal subframes
  • the first synchronization control channel and the second synchronization control channel occupy different symbols in the same synchronization signal subframe.
  • the location occupied by the synchronous control channel is Predefined parameters are associated;
  • the predefined parameter is the synchronization source hop count
  • the first source device and the second transmitter device are currently at different synchronization source hops
  • the first source device and the second source device use different synchronization source identifiers.
  • a second aspect of the embodiments of the present invention provides a signal receiving method, including:
  • the receiving end device receives data that is sent by the transmitting end device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, where the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control channel subframe is D2D. Synchronous control channel subframe;
  • the receiving end device parses the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the receiving end device parses the data in the synchronization signal subframe and/or the synchronization control channel subframe Specifically include:
  • the receiving end uses the synchronization signal as a demodulation reference signal of the data, and parses out the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the receiving end device receives the subframe loaded in the synchronization signal and/or the synchronization control channel sent by the transmitting device.
  • the data in the specific includes:
  • the receiving end device receives data and a first reference signal that are loaded on a synchronization signal subframe that does not include a synchronization control channel, and the first reference signal is not loaded in the synchronization signal subframe that does not include the synchronization control channel. a symbol on which the sync signal occupies and is different from the sync signal;
  • the determining, by the receiving device, the data in the synchronization signal subframe and/or the synchronization control channel subframe includes:
  • the receiving end uses the first reference signal as a demodulation reference signal of the data, and parses out the synchronization signal subframe that does not include the synchronization control channel.
  • the data ;
  • the receiving end uses the second reference signal as a demodulation reference signal of the data, and parses out the synchronization control channel subframe that does not include the synchronization signal.
  • the data ;
  • the receiving end uses the third reference signal as a demodulation reference signal of the data, and parses out the synchronization signal and Synchronizing the synchronization signal sub-frame of the control channel or the data in the synchronization control channel sub-frame.
  • the receiving end device receives the subframe loaded in the synchronization signal and/or the synchronization control channel sent by the transmitting device.
  • the data in the specific includes:
  • the determining, by the receiving device, the data in the synchronization signal subframe and/or the synchronization control channel subframe includes:
  • the receiving end uses the fourth reference signal as a demodulation reference signal of the data, and parses out the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the receiving end device receives the subframe loaded in the synchronization signal and/or the synchronization control channel sent by the transmitting device.
  • the data in the specific includes:
  • the determining, by the receiving device, the data in the synchronization signal subframe and/or the synchronization control channel subframe includes:
  • the receiving end device uses the third reference signal and the synchronization signal as demodulation reference signals of the data, and parses out that the synchronization is included a synchronization signal sub-frame of a signal or the data in a synchronization control channel sub-frame;
  • the receiving end device uses the third reference signal as a demodulation reference signal of data outside the bandwidth of the synchronization control channel, and uses a demodulation reference dedicated to the synchronization control channel.
  • the signal is used as a demodulation reference signal for data within the bandwidth of the synchronization control channel, and the data in the synchronization control channel subframe not including the synchronization signal is parsed.
  • the receiving end device receives the subframe loaded in the synchronization signal and/or the synchronization control channel sent by the transmitting device.
  • the data in the previous one also includes:
  • the receiving end device receives the indication signaling sent by the sending end device, where the indication signaling is used to indicate whether the synchronization sources in the group are QCL, and the QCL is used to indicate multiple
  • the signal sent by the transmitting device is approximately a signal from the same site, and the synchronization source includes a transmitting device and a receiving device in the discovery group;
  • the receiving end device receiving the data that is sent by the transmitting end device and loaded in the synchronization signal sub-frame and/or the synchronization control channel sub-frame includes:
  • the receiving end device receives data loaded in the synchronization signal subframe and/or the synchronization control channel subframe, or the receiving The end device receives the data loaded in the synchronization signal subframe and/or the synchronization control channel subframe and the fifth reference signal, and the fifth reference signal is loaded and synchronized in the synchronization signal subframe and/or the synchronization control channel subframe. a position outside the bandwidth of the signal or synchronization control channel;
  • the receiving end device receives data and a first reference signal that are loaded on a synchronization signal subframe that does not include the synchronization control channel.
  • the first reference signal is loaded on the symbol of the synchronization signal sub-frame that does not include the synchronization control channel and is not occupied by the synchronization signal and is different from the synchronization signal, and the receiving end device receives the synchronization control that does not include the synchronization signal.
  • the receiving device Receiving data and a third reference signal loaded on a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal and a synchronization control channel, the third The reference signal is loaded on a symbol in the synchronization signal subframe or the synchronization control channel subframe that is not occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel, or the receiving end Receiving, by the device, the data loaded in the synchronization signal subframe and/or the synchronization control channel subframe and the fourth reference signal, where the fourth reference signal is superimposed and loaded on the symbol occupied by the synchronization signal;
  • the determining, by the receiving device, the data in the synchronization signal subframe and/or the synchronization control channel subframe includes:
  • the receiving end parses the synchronization signal subframe and/or synchronization by using a synchronization signal as a demodulation reference signal of the data.
  • the receiving end device uses the third reference signal and the synchronization signal as the data Demodulating the reference signal, parsing the data in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal, and in the synchronization control channel subframe not including the synchronization signal, the receiving device uses The third reference signal is used as a demodulation reference signal for data outside the bandwidth of the synchronization control channel, and the demodulation reference signal dedicated to the synchronization control channel is used as a demodulation reference signal for data in the bandwidth of the synchronization control channel, and the Not including the data in the synchronization control channel subframe with the synchronization
  • the receiving end device uses the first reference signal as the a demodulation reference signal of the data, parsing the data in the synchronization signal subframe not including the synchronization control channel, and in the synchronization control channel subframe not including the synchronization signal, the receiving end device uses the second a reference signal as a demodulation reference signal of the data, parsing the data in the synchronization control channel subframe not including the synchronization signal, in a synchronization signal subframe or a synchronization control channel including a synchronization signal and a synchronization control channel
  • the receiving end device uses the third reference signal as a demodulation reference signal of the data, and parses out the synchronization signal subframe or the synchronization control channel subframe included in the synchronization signal and the synchronization control channel.
  • Data, or the receiving end device uses the fourth reference signal as a demodulation reference signal of the data, parses out the synchronization signal subframe or the synchronization control channel subframe included in the synchronization signal and the synchronization
  • the data is D2D data, or cellular data.
  • the transmitting end device when the data is cellular link data, the transmitting end device When the receiving end device is a cellular link terminal, the receiving end device further includes: before receiving the data that is sent by the transmitting end device and loaded in the synchronization signal sub-frame and/or the synchronization control channel sub-frame:
  • the second indication information is used to indicate whether the subframe currently received by the cellular link terminal is a synchronization signal subframe and/or a synchronization control channel. frame;
  • the second indication information indicates that the currently received subframe is a synchronization signal and/or a synchronization control channel subframe subframe
  • triggering, by the receiving end device, the loading of the synchronization signal subframe and/or synchronization sent by the transmitting device The step of controlling the data in the channel subframe.
  • a third aspect of the embodiments of the present invention provides a transmitting end device, including:
  • a determining module configured to determine a synchronization signal subframe of the device to the device D2D and/or an unoccupied resource in the synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, where the synchronization control channel subframe includes Synchronous control channel;
  • a data loading module configured to load data on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe determined by the determining module;
  • a sending module configured to send the data loaded by the data loading module to the receiving end device.
  • the transmitting device further includes:
  • a first reference loading module configured to: when the synchronization signal sub-frame does not include a synchronization control channel, in the synchronization signal sub-frame, the symbol that is not occupied by the synchronization signal and is different from the synchronization signal is loaded on the symbol a reference signal;
  • a second reference loading module configured to: when the synchronization control channel subframe does not include a synchronization signal, a symbol that is not occupied by the synchronization control channel and is different from the synchronization control channel in the synchronization control channel subframe Loading a second reference signal;
  • a third reference loading module configured to: when the synchronization signal subframe or the synchronization control channel subframe includes a synchronization signal and a synchronization control channel, in the synchronization signal subframe or the synchronization control channel subframe, Occupied by the synchronization signal and the synchronization control channel, and with the synchronization signal and the synchronization control channel
  • the third reference signal is loaded on the symbols of different positions.
  • the transmitting device further includes:
  • a sequence generating module configured to generate, on a bandwidth of the data, a unique determined sequence corresponding to the first reference signal, the second reference signal, or the third reference signal, or generate a bandwidth on a synchronization signal or a synchronous control channel Corresponding to a first portion of the uniquely determined sequence of the first reference signal, the second reference signal, or the third reference signal, and generating a second portion of the sequence over the remaining bandwidth.
  • the transmitting device further includes:
  • a fourth reference loading module configured to superimpose and load the fourth reference signal on the symbol occupied by the synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting device further includes:
  • a fifth reference loading module configured to load a fifth reference signal at a position outside the bandwidth of the synchronization signal or the synchronization control channel in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the fifth reference loading module is specifically configured to: in the synchronization signal subframe and/or Or a demodulation reference sequence on a bandwidth of the generated control channel, or a portion of the demodulation reference sequence on the bandwidth of the data that overlaps with the bandwidth of the synchronization signal or the control channel, and the demodulation The remaining portion of the reference sequence is placed at a corresponding location to generate the fifth reference signal, or in the bandwidth of the data in the synchronization signal subframe and/or the synchronization control channel subframe, with the synchronization signal or the synchronization control channel
  • the fifth reference signal is generated at a position where the bandwidth does not overlap.
  • the transmitting device further includes:
  • the quasi-work station judging module is configured to determine whether the synchronization sources in the group are quasi-co-located QCLs, and the QCL is used to indicate that the signals sent by the multiple transmitter devices in the discovery group are approximated from the same site.
  • the synchronization source includes a transmitting end device and a receiving end device in the discovery group;
  • a sixth reference loading module configured to: when determining that the synchronization sources in the discovery group are QCLs, do not load the demodulation reference signal on the synchronization signal subframe or the synchronization control channel subframe, or in the Loading a fifth reference signal at a position outside the bandwidth of the synchronization signal or the synchronization control channel;
  • a seventh reference loading module configured to: when determining that the synchronization sources in the transmission group are not QCL, superimposing and loading on the symbols occupied by the synchronization signals in the synchronization signal subframe and/or the synchronization control channel subframe a fourth reference signal, or a first control signal that is not occupied by the synchronization signal and that is different from the synchronization signal in a synchronization signal sub-frame that does not include the synchronization control channel, in a synchronization control channel that does not include the synchronization signal a second reference signal is loaded on a symbol in the frame that is not occupied by the synchronization control channel and is different from the synchronous control channel, in a synchronization signal subframe or a synchronization control channel subframe that includes both the synchronization signal and the synchronization control channel, A third reference signal is loaded on the symbol occupied by the synchronization signal and the synchronization control channel and at a different location from the synchronization signal and the synchronization control channel.
  • the transmitting device further includes:
  • a synchronization source determining module configured to determine whether the transmitting end device is a synchronous source transmitter
  • a first triggering module configured to trigger the quasi-work station determining module when determining that the transmitting end device is not a synchronous source transmitter
  • An eighth reference loading module configured to: when the transmitting end device is determined to be a synchronous source transmitter, not to load a demodulation reference signal on the synchronization signal subframe or the synchronization control channel subframe, or in the synchronization signal or synchronization Loading a fifth reference signal at a position outside the bandwidth of the control channel, or superimposing a fourth reference signal on a symbol occupied by the synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe, or not including synchronization
  • the first reference signal is loaded on the symbol of the synchronization signal sub-frame of the control channel that is not occupied by the synchronization signal and is different from the synchronization signal, and is not occupied by the synchronization control channel in the synchronization control channel subframe that does not include the synchronization signal and
  • the second reference signal is loaded on the symbols of the different positions of the synchronous control channel, and is not occupied by the synchronization signal and the synchronization control channel in the synchronization signal sub
  • the transmitting end device when the data is cellular link data, the transmitting end device When the receiving end device is a base station, the transmitting end device further includes:
  • a receiving module configured to receive first indication information sent by the base station, where the first indication information is used to indicate whether a subframe currently transmitted by the cellular terminal is a synchronization signal subframe and/or a synchronization control channel Subframe
  • a second triggering module configured to trigger the determining module when the first indication information indicates that the currently transmitted subframe is a synchronization signal subframe and/or a synchronization control channel subframe;
  • the transmitting device further includes:
  • a rate matching module configured to perform rate matching on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel.
  • a fourth aspect of the embodiments of the present invention provides a receiving end device, including:
  • a first receiving module configured to receive data that is sent by the transmitting end device and is loaded in a synchronization signal subframe and/or a synchronization control channel subframe, where the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control channel
  • the subframe is a synchronous control channel subframe of D2D;
  • a parsing module configured to parse the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the parsing module is specifically configured to: use a synchronization signal as a demodulation reference signal of the data, and parse the The data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the first receiving module specifically includes:
  • a first receiving unit configured to receive data and a first reference signal that are loaded on a synchronization signal subframe that does not include a synchronization control channel, where the first reference signal is loaded in the synchronization signal subframe that does not include the synchronization control channel a symbol that is not occupied by the synchronization signal and is different from the synchronization signal;
  • a second receiving unit configured to receive data and a second reference signal that are loaded on a synchronization control channel subframe that does not include a synchronization signal, where the second reference signal is recorded in the synchronization control channel subframe and is not synchronized with the control channel A symbol that occupies and is different from the synchronous control channel;
  • a third receiving unit configured to receive data and a third reference signal that are loaded on a synchronization signal subframe or a synchronization control channel subframe that includes a synchronization signal and a synchronization control channel, where the third reference signal is loaded in the synchronization signal a symbol in a frame or a synchronization control channel subframe that is not occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel;
  • the parsing module specifically includes:
  • a first parsing unit configured to use the first reference signal as a demodulation reference signal of the data in a synchronization signal subframe that does not include a synchronization control channel, and parse the synchronization signal that does not include a synchronization control channel The data in the frame;
  • a second parsing unit configured to use the second reference signal as a demodulation reference signal of the data in a synchronization control channel subframe that does not include a synchronization signal, and parse the synchronization control channel that does not include the synchronization signal The data in the frame;
  • a third parsing unit configured to parse the inclusion by using the third reference signal as a demodulation reference signal of the data on a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal and a synchronization control channel
  • the synchronization signal and the synchronization signal sub-frame of the synchronization control channel or the data in the synchronization control channel subframe is a third parsing unit, configured to parse the inclusion by using the third reference signal as a demodulation reference signal of the data on a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal and a synchronization control channel.
  • the first receiving module is specifically configured to receive and load a synchronization signal subframe and/or a synchronization control channel subframe. And the fourth reference signal is superimposed and loaded on the symbol occupied by the synchronization signal;
  • the parsing module is configured to parse the data in the synchronization signal subframe and/or the synchronization control channel subframe by using the fourth reference signal as a demodulation reference signal of the data.
  • the first receiving module is specifically configured to receive a subframe that is loaded in a synchronization signal and/or a synchronization control channel. And a fifth reference signal, the fifth reference signal being loaded at a position outside the bandwidth of the synchronization signal or the synchronization control channel in the synchronization signal subframe and/or the synchronization control channel subframe;
  • the parsing module specifically includes:
  • a fourth parsing unit configured to use the third reference signal and the synchronization signal as a demodulation reference signal of the data in a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal, and parse the inclusion a synchronization signal sub-frame having a synchronization signal or the data in a synchronization control channel subframe;
  • a fifth parsing unit configured to use the third reference signal as a demodulation reference signal of data outside the bandwidth of the synchronization control channel in a synchronization control channel subframe that does not include the synchronization signal, and use a solution dedicated to the synchronization control channel
  • the tone reference signal is used as a demodulation reference signal for data within the bandwidth of the synchronization control channel, and the data in the synchronization control channel subframe not including the synchronization signal is parsed.
  • the receiving device further includes:
  • a second receiving module configured to receive the indication signaling sent by the sending end device, where the indication signaling is used to indicate whether each synchronization source in the group is a QCL, and the QCL is used to indicate the discovery group
  • the signals sent by the multiple transmitting end devices are approximately signals from the same station, and the synchronization source includes the transmitting end device and the receiving end device in the discovery group;
  • the first receiving module specifically includes:
  • a fourth receiving unit configured to: when the indication signaling indicates that the synchronization sources in the discovery group are QCLs, receive data loaded in the synchronization signal subframe and/or the synchronization control channel subframe, or receive Loading data in a synchronization signal subframe and/or a synchronization control channel subframe and a fifth reference signal, the fifth reference signal being loaded in the synchronization signal subframe and/or the synchronization control channel subframe in synchronization signal or synchronization Position outside the bandwidth of the control channel;
  • a fifth receiving unit configured to: when the indication signaling indicates that the synchronization sources in the discovery group are not QCL, receive data and a first reference signal that are loaded on a synchronization signal subframe that does not include the synchronization control channel. And the first reference signal is loaded on the symbol of the synchronization signal subframe that does not include the synchronization control channel, which is not occupied by the synchronization signal and is different from the synchronization signal, and is received by the synchronization control channel subframe that does not include the synchronization signal.
  • the upper data and the second reference signal are recorded in a symbol of the synchronization control channel subframe that is not occupied by the synchronization control channel and is different from the synchronization control channel, and the reception is loaded with the synchronization signal and the synchronization a synchronization signal sub-frame of the control channel or data on the synchronization control channel sub-frame and a third reference signal, the third reference signal being loaded in the synchronization signal sub-frame or the synchronization control channel sub-frame without the synchronization signal and Synchronizing the control channel to occupy a symbol different from the synchronization signal and the synchronization control channel, or receiving the synchronization signal And / or a synchronization control channel and a data subframe fourth reference signal, said fourth reference signal is superimposed on the load signal occupied symbol synchronization;
  • the parsing module specifically includes:
  • a sixth parsing module configured to parse the synchronization signal subframe and the synchronization signal as a demodulation reference signal of the data when the indication signaling indicates that the synchronization sources in the discovery group are QCLs And/or synchronizing the data in the control channel subframe, or in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal, using the third reference signal and the synchronization signal as demodulation of the data a reference signal, parsing the synchronization signal sub-frame or synchronization control signal including the synchronization signal
  • the data in the sub-frame, in the synchronization control channel subframe not including the synchronization signal using the third reference signal as a demodulation reference signal of data outside the bandwidth of the synchronization control channel, using a synchronization control channel dedicated Demodulating the reference signal as a demodulation reference signal of data within a bandwidth of the synchronization control channel, parsing the data in the synchronization control channel subframe not including the synchronization signal;
  • a seventh parsing module configured to: when the indication signaling indicates that the synchronization sources in the discovery group are not QCL, in the synchronization signal subframe that does not include the synchronization control channel, use the first reference signal as And demodulating the reference signal of the data, parsing the data in the synchronization signal subframe that does not include the synchronization control channel, and using the second reference signal as a synchronization control channel subframe that does not include the synchronization signal Demodulating the reference signal of the data, parsing the data in the synchronization control channel subframe that does not include the synchronization signal, on a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal and a synchronization control channel, Using the third reference signal as a demodulation reference signal of the data, parsing the data in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel, or using the The fourth reference signal is used as a demodulation
  • the transmitting end device when the data is cellular link data, the transmitting end device When the receiving end device is a cellular link terminal, the receiving end device further includes:
  • a third receiving module configured to receive second indication information that is sent by the base station, where the second indication information is used to indicate whether a subframe currently received by the cellular link terminal is a synchronization signal subframe and/or a synchronization control channel Subframe
  • the third triggering module is configured to trigger the first receiving module when the second indication information indicates that the currently received subframe is a synchronization signal and/or a synchronization control channel subframe subframe.
  • a fifth aspect of the embodiments of the present invention provides a sending end device, including:
  • Input device output device, processor and memory
  • the processor is configured to perform the following operations by calling an operation instruction stored in the memory:
  • a synchronization signal subframe of the device D2D and/or an unoccupied resource in the synchronization control channel subframe where the synchronization signal subframe includes a synchronization signal, and the synchronization control channel subframe includes a synchronization control channel;
  • the processor is further configured to perform the following operations:
  • the first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal;
  • a second reference signal is loaded on a symbol that is not occupied by the synchronization control channel and is different from the synchronization control channel;
  • the synchronization signal subframe or the synchronization control channel subframe includes both the synchronization signal and the synchronization control channel
  • the synchronization signal and the synchronization control channel are occupied. And loading a third reference signal on a symbol different from the synchronization signal and the synchronization control channel.
  • the processor is further configured to perform the following operations:
  • the processor is further configured to perform the following operations:
  • the processor is further configured to perform the following operations:
  • the fifth reference signal is loaded at a position outside the bandwidth of the synchronization signal or the synchronization control channel.
  • the processor is specifically configured to perform the following operations:
  • the processor is further configured to perform the following operations:
  • the respective synchronization sources in the group are quasi-co-located QCLs, wherein the QCL is used to indicate that the signals sent by the multiple transmitting end devices in the discovery group can be approximated as signals from the same station, and the synchronization source includes The transmitting end device and the receiving end device in the discovery group;
  • the demodulation reference signal is not loaded on the synchronization signal subframe or the synchronization control channel subframe, or is outside the bandwidth of the synchronization signal or the synchronization control channel. Loading a fifth reference signal at the location;
  • the fourth reference signal is superimposed and loaded on the symbol occupied by the synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe, or
  • the first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal in the synchronization signal subframe including the synchronization control channel, and is not occupied by the synchronization control channel in the synchronization control channel subframe that does not include the synchronization signal.
  • the second reference signal on the symbol different from the synchronous control channel, and in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel, the synchronization signal and the synchronization control channel are occupied. And loading a third reference signal on a symbol different from the synchronization signal and the synchronization control channel.
  • the sending end device according to claim 50, characterized in that the processing It is also used to perform the following operations:
  • the transmitting end device When the transmitting end device is determined to be a synchronous source transmitter, not in the synchronization signal subframe or synchronization Loading a demodulation reference signal on a control channel subframe, or loading a fifth reference signal at a position outside the bandwidth of the synchronization signal or the synchronization control channel, or in the synchronization signal subframe and/or the synchronization control channel subframe Superimposing a fourth reference signal on a symbol occupied by the synchronization signal, or loading a first reference signal on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal in a synchronization signal sub-frame that does not include the synchronization control channel, a synchronization control channel subframe that does not include a synchronization signal, a second reference signal that is not occupied by the synchronization control channel and that is different from the synchronization control channel, and a synchronization signal subframe that includes both the synchronization signal and the synchronization control channel Or in the synchronization control
  • the transmitting end device when the data is cellular link data, the transmitting end device When the receiving end device is a base station, the processor is further configured to perform the following operations:
  • first indication information is used to indicate whether a subframe currently transmitted by the cellular terminal is a synchronization signal subframe and/or a synchronization control channel subframe;
  • the determining device When the first indication information indicates that the currently transmitted subframe is a synchronization signal subframe and/or a synchronization control channel subframe, triggering the determining device to the synchronization signal subframe and/or the synchronization control channel subframe of the device D2D The operation of unoccupied resources.
  • the processor is further configured to perform the following operations:
  • Rate matching is performed on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel.
  • a sixth aspect of the embodiments of the present invention provides a receiving end device, including:
  • Input device output device, processor and memory
  • the processor is configured to perform the following operations by calling an operation instruction stored in the memory:
  • the synchronization signal subframe is a D2D synchronization signal subframe
  • the synchronization control channel subframe is a D2D synchronization control.
  • the processor is specifically configured to perform the following operations:
  • the synchronization signal is used as a demodulation reference signal of the data, and the data in the synchronization signal subframe and/or the synchronization control channel subframe is parsed.
  • the processor is specifically configured to perform the following operations:
  • a third reference signal loaded on a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal and a synchronization control channel, the third reference signal being loaded in the synchronization signal subframe or the synchronization control channel subframe a symbol that is not occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel;
  • the third reference signal as a demodulation reference signal of the data on the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel, parsing the synchronization signal and the synchronization control channel The data in the sync signal subframe or the synchronization control channel subframe.
  • the processor is specifically configured to perform the following operations:
  • the fourth reference signal as a demodulation reference signal of the data, parsing the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the processor is specifically configured to perform the following operations:
  • the third reference signal and the synchronization signal are used as demodulation reference signals of the data, and the synchronization signal including the synchronization signal is parsed
  • the third reference signal is used as a demodulation reference signal of data outside the bandwidth of the synchronization control channel, and a demodulation reference signal dedicated to the synchronization control channel is used as the synchronization control channel.
  • the demodulation reference signal of the data within the bandwidth resolves the data in the synchronization control channel subframe that does not include the synchronization signal.
  • the processor is further configured to perform the following operations:
  • the indication signaling is used to indicate whether each synchronization source in the group is a QCL, and the QCL is used to indicate that multiple sending end devices in the discovery group send
  • the signal is approximately a signal from the same site, and the synchronization source includes a transmitting device and a receiving device in the discovery group;
  • the processor is specifically configured to perform the following operations:
  • the indication signaling indicates that the respective synchronization sources in the discovery group are QCLs, receiving data loaded in the synchronization signal subframe and/or the synchronization control channel subframe, or receiving the synchronization signal subframe and And synchronizing data in the control channel subframe and a fifth reference signal, the fifth reference signal being loaded in a position outside the bandwidth of the synchronization signal or the synchronization control channel in the synchronization signal subframe and/or the synchronization control channel subframe on;
  • the first reference signal Loading in the synchronization signal sub-frame that does not include the synchronous control channel is not occupied by the synchronization signal
  • the second reference signal is recorded in the synchronization control channel subframe
  • the synchronization signal is used as a demodulation reference signal of the data, and the synchronization signal subframe and/or the synchronization control channel subframe are parsed out.
  • the first reference signal is used as a demodulation reference of the data.
  • Signaling, parsing the data in the synchronization signal subframe that does not include the synchronization control channel, and using the second reference signal as a demodulation reference of the data in a synchronization control channel subframe that does not include a synchronization signal Transmitting, by the signal, the data in the synchronization control channel subframe that does not include the synchronization signal, using the third reference signal on a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal and a synchronization control channel
  • the demodulation reference signal of the data parsing the data in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel, or using the fourth reference signal as the The demodulation reference signal of the data parses out the
  • the present invention is implemented in a sixth implementation manner of the sixth aspect, the processor is further configured to perform the following operations:
  • Second indication information is used to indicate whether a subframe currently received by the cellular link terminal is a synchronization signal subframe and/or a synchronization control channel subframe;
  • the second indication information indicates that the currently received subframe is a synchronization signal and/or a synchronization control channel subframe subframe
  • triggering the loading of the receiving transmitter device to be transmitted in the synchronization signal subframe and/or the synchronization control channel The operation of the data in the frame.
  • the embodiment of the present invention has the following advantages: in the embodiment of the present invention, the transmitting end device first determines the unoccupied resources in the D2D synchronization signal subframe and/or the synchronization control channel subframe, in the synchronization. The data is loaded on the unoccupied resources in the signal subframe and/or the synchronization control channel subframe, and the transmitting device sends the data loaded in the synchronization signal subframe and/or the synchronization control channel subframe to the receiving device.
  • the effective use of the unoccupied resources in the D2D synchronization signal subframe improves the utilization of resources by the system.
  • FIG. 1 is a schematic diagram of an example of a relationship between a synchronization signal subframe and a synchronization control channel subframe according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of another example of a relationship between a synchronization signal subframe and a synchronization control channel subframe according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of another example of a relationship between a synchronization signal subframe and a synchronization control channel subframe according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of another example of a relationship between a synchronization signal subframe and a synchronization control channel subframe according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of an example of a synchronization signal or a synchronization control channel occupying a symbol position in a subframe according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram showing another example of a synchronization signal or a synchronization control channel occupying a symbol position in a subframe according to an embodiment of the present invention
  • FIG. 7 is a schematic diagram showing another example of a synchronization signal or a synchronization control channel occupying symbol position in a subframe according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a synchronization signal or a synchronization control channel occupying a symbol position in a subframe according to an embodiment of the present invention. An example schematic diagram;
  • FIG. 9 is a schematic diagram of an example of a synchronization control channel and a symbol position occupied by a demodulation reference signal in a synchronization control channel subframe that does not include a synchronization signal according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of another example of a synchronization control channel and a demodulation reference signal occupying a symbol position in a synchronization control channel subframe that does not include a synchronization signal according to an embodiment of the present invention
  • FIG. 11 is a schematic flowchart of a signal sending method according to an embodiment of the present invention.
  • FIG. 12 is a schematic diagram of an application scenario in which an unoccupied resource is used in a D2D link according to an embodiment of the present disclosure
  • FIG. 13 is a schematic diagram of an example of bandwidth of data loaded in a synchronization signal or a synchronous control channel according to an embodiment of the present invention
  • FIG. 14 is another schematic flowchart of a signal sending method according to an embodiment of the present invention.
  • 15 is a schematic diagram of an example of bandwidth of data loaded in a manner that exceeds a synchronization signal or a synchronous control channel according to an embodiment of the present invention
  • 16 is another schematic flowchart of a signal sending method according to an embodiment of the present invention.
  • FIG. 17 is a schematic diagram of an example of loading a first reference signal by using a time division manner in a synchronization signal subframe that does not include a synchronization control channel according to an embodiment of the present disclosure
  • FIG. 18 is a schematic diagram of an example of loading a second reference signal by using a time division manner in a synchronization signal subframe that does not include a synchronization control channel according to an embodiment of the present disclosure
  • FIG. 19 is a schematic diagram of an example of loading a third reference signal by using a time division manner in a synchronization signal subframe that does not include a synchronization control channel according to an embodiment of the present disclosure
  • FIG. 21 is a schematic diagram showing an example of superimposing and loading a fourth reference signal on a symbol occupied by a synchronization signal according to an embodiment of the present invention.
  • FIG. 22 is another schematic flowchart of a signal sending method according to an embodiment of the present invention.
  • FIG. 23 is another schematic flowchart of a signal sending method according to an embodiment of the present invention.
  • FIG. 24 is a schematic diagram of an application scenario in which an unoccupied resource is used in a cellular link according to an embodiment of the present invention.
  • 25 is another schematic flowchart of a signal sending method according to an embodiment of the present invention.
  • 26 is a schematic flowchart of a signal receiving method according to an embodiment of the present invention.
  • FIG. 27 is another schematic flowchart of a signal receiving method according to an embodiment of the present invention.
  • 29 is another schematic flowchart of a signal receiving method according to an embodiment of the present invention.
  • FIG. 30 is a schematic diagram of another flow of a signal receiving method according to an embodiment of the present invention.
  • FIG. 31 is another schematic flowchart of a signal receiving method according to an embodiment of the present invention.
  • 33 is a schematic diagram of an example of using different synchronization signal subframes when different synchronization sources send synchronization control channels according to an embodiment of the present invention
  • FIG. 34 is a schematic diagram of an example of using different symbols in a subframe of the same synchronization signal when different synchronization sources send synchronization control channels according to an embodiment of the present invention
  • 35 is a schematic diagram of an example of different D2D synchronization sources having different current synchronization source hops according to an embodiment of the present invention
  • 36 is a schematic structural diagram of a device at a transmitting end according to an embodiment of the present invention.
  • FIG. 37 is another schematic structural diagram of a transmitting end device according to an embodiment of the present invention.
  • 39 is another schematic structural diagram of a transmitting end device according to an embodiment of the present invention.
  • FIG. 40 is another schematic structural diagram of a transmitting end device according to an embodiment of the present invention.
  • 41 is another schematic structural diagram of a transmitting end device according to an embodiment of the present invention.
  • FIG. 42 is a schematic structural diagram of another apparatus of a transmitting end device according to an embodiment of the present invention.
  • FIG. 43 is a schematic structural diagram of a receiving end device according to an embodiment of the present invention.
  • 44 is another schematic structural diagram of a receiving end device according to an embodiment of the present invention.
  • 45 is another schematic structural diagram of a receiving end device according to an embodiment of the present invention.
  • FIG. 46 is another schematic structural diagram of a receiving end device according to an embodiment of the present invention.
  • 47 is another schematic structural diagram of a receiving end device according to an embodiment of the present invention.
  • FIG. 48 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • first, second, etc. may be used to describe various reference signals or transmitting devices in the embodiments of the present invention, the reference signals or transmitting devices should not be limited to these terms. These terms are only used to distinguish one another from a reference signal or a transmitting device.
  • the first reference signal may also be referred to as a second reference signal without departing from the scope of the embodiments of the present invention.
  • the second reference signal may also be referred to as a first reference signal;
  • the second The transmitting device can also be referred to as a third transmitting device or the like, which is not limited in this embodiment of the present invention.
  • synchronization signal subframe denotes a subframe containing a synchronization signal
  • synchronization control channel subframe denotes a subframe for containing a synchronization control channel
  • the synchronization signal may also include synchronization control in a subframe.
  • the channel, the synchronization control signal may also include a synchronization signal in the subframe.
  • the synchronization signal in the present invention is a synchronization signal from the device to the device D2D, and can be described by the abbreviation D2DSS (D2D Synchronization Signal).
  • the synchronization signal specifically includes a primary D2D Synchronization Signal (PD2DSS) and a secondary D2D Synchronization Signal (SD2DSS), and the synchronous control channel is a synchronous source transmitter sent to the receiver to receive the common control and common indication information.
  • the channel may be referred to as a broadcast control channel, abbreviated as PD2DSCH (Physical D2D Synchronization Channel), and may also be referred to as SL-BCH (SideLink Broadcast CHannel).
  • PD2DSCH Physical D2D Synchronization Channel
  • SL-BCH SideLink Broadcast CHannel
  • the D2DSS effective signal occupies 62 data subcarriers of the 72 PRBs (Physical Resource Block) of the center, and the remaining 10 subcarriers serve as protection subcarriers of the D2DSS.
  • the PD2DSCH channel occupies part or all of the bandwidth of the central 6PRB total 72 subcarriers.
  • the contents of the control signaling that may be included in the synchronous control channel are: D2D frame number, TDD configuration, Time Division Duplex (TDD)/Frequency Division Duplex (FDD). Indicates signaling, system bandwidth, synchronization source type, current hop count, indication information of the transmit or receive resource pool, and so on.
  • this synchronous control channel mainly refers to: the common indication information transmitted at the synchronization source transmitter, which is used by the receiver for the D2D synchronization source to receive and use. Channel.
  • D2DSS is used as an abbreviation of the synchronization signal
  • PD2DSS is used as an abbreviation of the main D2D synchronization signal
  • SD2DSS is used as an abbreviation of the D2D synchronization signal
  • PD2DSCH is used as an abbreviation of the synchronization control channel.
  • the resources of the subframe include a time domain resource and a frequency domain resource.
  • one subframe is divided into two slots, the former slot can be called the first slot, the latter slot can be called the second slot; the subframe of the normal cyclic prefix CP
  • Each time slot is further divided into 7 symbols, numbered from 0 to 6; the subframe of the extended cyclic prefix CP is further divided into 6 symbols, numbered from 0 to 5, and the second of each subframe.
  • the last symbol of the time slot is occupied by the GAP (that is, the part that is not sent out in the time domain). That is, the term "symbol" refers to a partial time domain resource in a subframe.
  • different frequency domain resources can also be utilized in the same time domain resource.
  • demodulation reference signal means a reference signal dedicated to demodulating data, which is represented by the abbreviation DMRS in the embodiment of the present invention.
  • each reference signal in the embodiment of the present invention includes: a first reference signal to a fifth reference signal, which are demodulation reference signals used for demodulating the loaded data.
  • these reference signals can also be used as a demodulation reference signal of the synchronous control channel, which is not limited herein.
  • the PD2DSCH subframe may be included in the D2DSS subframe or may not be included in the D2DSS subframe.
  • the transmission period of the PD2DSCH subframe and the D2DSS subframe is also not limited.
  • the PD2DSCH subframes are all included in the D2DSS subframe:
  • the transmission period of the D2DSS (that is, the interval between each transmission) is 40 ms, and the transmission period of the D2DSS subframe is used as one PD2DSCH, and the transmission period of one PD2DSCH is 160 ms.
  • Four D2DSS subframes are transmitted, and two consecutive D2DSS subframes can be used to transmit the content of the PD2DSCH.
  • the PD2DSCH subframe is also included.
  • the D2DSS subframe two symbols are respectively occupied by the SD2DSS and the PD2DSS, and in the D2DSS subframe including the PD2DSCH subframe, except for the symbols occupied by the SD2DSS and the PD2DSS and occupied by the D2D guard interval GAP, other symbols are used.
  • Have been PD2DSCH is occupied.
  • the symbols of the D2DSS subframes that do not contain the PD2DSCH subframe are only occupied by SD2DSS, PD2DSS, and GAP, and the remaining time-frequency resources are not used.
  • the remaining 9 symbols in the D2DSS subframe of the normal cyclic prefix CP are not used.
  • the second case Please refer to Figure 2, or take the D2DSS transmission period (that is, the interval between each transmission) is 40ms, using 4 D2DSS subframes as a PD2DSCH transmission period as an example, but in each D2DSS sub- A part of the PD2DSCH is transmitted in the frame. For example, in each D2DSS subframe, SD2DSS and PD2DSS occupy 2 symbols respectively, and PD2DSCH occupies 3 symbols, then 6 symbols remain in the D2DSS subframe of the normal cyclic prefix CP. use.
  • the PD2DSCH subframes are all included in the D2DSS subframe, and each PD2DSCH subframe includes D2DSS, and each D2DSS subframe includes PD2DSCH.
  • the PD2DSCH subframe portion is included in the D2DSS subframe.
  • the transmission period of the D2DSS subframe is 40 ms
  • the transmission period of the PD2DSCH subframe is 10 ms.
  • the PD2DSCH subframe is equally spaced in 4 subframes of 40 ms, and one PD2DSCH subframe. Included in the D2DSS subframe, other PD2DSCH subframes exist separately. In this scenario, among the four PD2DSCH subframes transmitted within 40 ms, only three PD2DSCH subframes contain PD2DSCH and do not include D2DSS, so the remaining symbols are not used.
  • the PD2DSCH subframe is not included in the D2DSS subframe.
  • the fourth case Referring to FIG. 4, the transmission period of the D2DSS subframe is 40 ms, and the transmission period of the PD2DSCH subframe is 10 ms.
  • the PD2DSCH subframe is not located in the D2DSS subframe, and not in each D2DSS subframe.
  • the PD2DSCH is included, and each of the PD2DSCH subframes does not include a D2DSS subframe, so that the remaining symbols in each subframe are not used.
  • the transmission period of the D2DSS in the above example and the transmission period of the PD2DSCH are only specific examples, and do not constitute a limitation of the present invention, for example, transmission of the D2DSS.
  • the period can also be 80ms, 160ms, and the transmission period of the D2DSS can also be 20ms, 10ms, etc., which is not limited herein.
  • the D2DSS subframe or the PD2DSCH subframe may be a subframe of a normal cyclic prefix CP, or may be a subframe of an extended cyclic prefix CP.
  • Extended cyclic prefix CP with normal cyclic prefix CP Just in the 1ms sub-frame, the number of symbols is different, the length of the CP is different, and the position of the reference signal is different.
  • the location of the D2DSS or PD2DSCH occupied symbols in each sub-frame can also be specified according to the actual situation or protocol. There are many cases, which are not limited here.
  • FIG. 5 An example of the location of the D2DSS and PD2DSCH occupied symbols in the subframe of the extended cyclic prefix CP is shown in FIG. 5, where the PD2DSS occupies the symbol 1 of the 1st and 2nd slots, and the SD2DSS occupies the 1st and 2nd Symbol 2 of the slot, PD2DSCH occupies symbol 0, symbol 3 and symbol 4 of the second slot.
  • FIG. 6 An example of the location of the D2DSS and PD2DSCH occupied symbols in the subframe of the normal cyclic prefix CP is shown in FIG. 6, where the PD2DSS occupies the symbol 2 of the 1st and 2nd slots, and the SD2DSS occupies the 1st and 2nd Symbol 3 of the slot, PD2DSCH occupies symbol 1, symbol 4 and symbol 5 of the second slot.
  • FIG. 7 Another example of the location of the D2DSS and PD2DSCH occupied symbols in the subframe of the extended cyclic prefix CP is shown in FIG. 7, where the PD2DSS occupies the symbol 1 of the 1st and 2nd slots, and the SD2DSS occupies the 1st and 2nd. Symbol 3 of the time slot, PD2DSCH occupies symbol 0, symbol 2 and symbol 4 of the second time slot.
  • FIG. 8 Another example of the location of the D2DSS and PD2DSCH occupied symbols in the subframe of the normal cyclic prefix CP is shown in FIG. 8, where the PD2DSS occupies the symbol 2 of the 1st and 2nd slots, and the SD2DSS occupies the 1st and 2nd. Symbol 4 of the time slot, PD2DSCH occupies symbol 1, symbol 3 and symbol 5 of the second time slot.
  • the D2DSS itself is a known sequence generated by the reference signal, it does not need to demodulate the reference signal, and the information transmitted in the PD2DSCH is information to be determined by the receiver when the PD2DSCH is required.
  • the PD2DSCH may use the D2DSS in the subframe as the demodulation reference signal, but when in the separately existing PD2DSCH subframe, that is, the subframe that does not include the D2DSS, a separate demodulation reference needs to be loaded.
  • the signal is used to demodulate the PD2DSCH, that is, in the PD2DSCH subframe that does not include the D2DSS, the demodulation reference signal dedicated to demodulating the PD2DSCH also occupies part of the symbol.
  • the PD2DSCH may use the synchronization signal as the demodulation reference signal, and may also use a dedicated demodulation reference signal, which is not limited herein.
  • the bandwidth occupied by the DMRS on the symbol is at least not less than the bandwidth occupied by the PD2DSCH channel.
  • FIG. 10 is an example of PD2DSCH and DMRS occupied symbol positions in a PD2DSCH subframe that does not include an extended cyclic prefix CP of D2DSS, where PD2DSCH occupies symbol 3 and symbol 4 of the second slot, and DMRS occupies the second Symbol 2 of the time slot.
  • the foregoing is only some examples in which the PD2DSCH or the D2DSS occupies the symbol position in the PD2DSCH subframe or the D2DSS subframe. According to the actual requirements or the protocol, there may be more ways to occupy the symbol position, which is not limited herein. .
  • the primary synchronization signal and the secondary synchronization signal in the synchronization signal there are more ways, and wherein the positions of the primary synchronization signal and the symbols occupied from the synchronization signal are interchangeable, and the primary synchronization signal and the slave synchronization
  • the signal has the same interval between the two slots:
  • the primary synchronization signal and the secondary synchronization signal occupy symbol 1 and symbol 2 in two slots before and after the synchronization signal subframe ;
  • the primary synchronization signal and the secondary synchronization signal occupy symbols 1 and 2 in the two slots before and after the synchronization signal subframe. Symbol 3;
  • the primary synchronization signal and the secondary synchronization signal occupy a symbol 0 in the previous time slot of the synchronization signal subframe. And symbol 1, and occupy symbol 3 and symbol 4 in the subsequent slot;
  • the primary synchronization signal and the secondary synchronization signal occupy symbol 2 and in two slots before and after the synchronization signal subframe.
  • the primary synchronization signal and the secondary synchronization signal occupy symbol 2 and in two slots before and after the synchronization signal subframe.
  • the primary synchronization signal and the secondary synchronization signal occupy the previous time slot of the synchronization signal subframe.
  • Symbol 0 and symbol 1 and occupy symbol 4 and symbol 5 in the subsequent slot;
  • the synchronous control channel can occupy three or four symbols different from the position of the synchronization signal in the synchronization signal subframe.
  • an embodiment of a signal sending method in an embodiment of the present invention includes:
  • the transmitting end device determines an unoccupied resource in a D2D synchronization signal subframe and/or a synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, and the synchronization control channel subframe includes a synchronization control channel. ;
  • the transmitting device determines unoccupied resources in the D2D synchronization signal subframe (D2DSS subframe) and/or the synchronization control channel subframe (PD2DSCH subframe).
  • D2DSS subframe D2D synchronization signal subframe
  • PD2DSCH subframe synchronization control channel subframe
  • the transmitting device is a transmitter of data, but not necessarily a transmitter of a synchronization source (ie, D2DSS or PD2DSCH). If the transmitting device is a synchronous source transmitter, the D2DSS subframe and/or The D2DSS or PD2DSCH occupying the symbol position in the PD2DSCH subframe may be transmitted by the transmitting device itself. If the transmitting device is not the synchronization source transmitter, the D2DSS occupying the symbol position in the D2DSS subframe and/or the PD2DSCH subframe or The PD2DSCH may be transmitted by other transmitters that are synchronization sources, which are not limited herein.
  • a synchronization source ie, D2DSS or PD2DSCH.
  • the transmitting end device loads data on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting device determines the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data is loaded on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe can be used for the D2D link, and can also be used for the cellular link, and correspondingly, the unoccupied resources.
  • the data loaded on the data of the D2D link or the data of the cellular link, here is not Limited.
  • the transmitting end device sends the loaded data to a receiving end device.
  • the transmitter device loads data on the unoccupied resource in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data sent in the synchronization signal subframe and/or the synchronization control channel subframe is sent to the receiver. End device.
  • the transmitting end device first determines that the D2D synchronization signal subframe and/or the unoccupied resource in the synchronization control channel subframe are unoccupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the data is loaded on the resource, and the transmitting device sends the data loaded in the synchronization signal subframe and/or the synchronization control channel subframe to the receiving device, so that the D2D synchronization signal subframe is effectively occupied.
  • Resources improve the utilization of resources by the system.
  • FIG. 12 is an application scenario in which an unoccupied resource is used in a D2D link, where the base station device may or may not exist, but at least (a schematic diagram of a transmitter is shown in FIG. 12)
  • the D2D transmitting end device and the several D2D receiving end devices, the transmitting end device and the receiving end device are D2D terminals.
  • D2DUE1 is a transmitting end device
  • D2DUE2 and D2DUE3 are both receiving end devices.
  • the data loaded on the unoccupied resource needs to have a demodulation reference signal to be demodulated, and it is also considered in loading the demodulation reference signal that the transmitting device in the embodiment of the present invention must be data.
  • the transmitter but not necessarily the transmitter of the synchronization source, whether the transmitter is the source of the synchronization source or the demodulation reference signal of the loaded data, and the bandwidth of the loaded data may be greater than
  • the bandwidth of the synchronization signal or the synchronization control channel may also be smaller than the bandwidth of the synchronization signal or the synchronization control channel, which also has a certain influence on the demodulation reference signal of the loaded data.
  • the signals in the embodiment of the present invention are divided into various different situations. The sending method is described in detail:
  • the transmitting device is a transmitter of data and a transmitter of a synchronous source.
  • the bandwidth of the loaded data is within the bandwidth of the synchronization signal or the synchronous control channel:
  • the transmitting device since the transmitting device is also the transmitter of the synchronization source, the data loaded on the unused resources can use the synchronization signal transmitted by the transmitting device as the demodulation reference signal, that is, When there is a synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe, the transmitting end device does not need to separately load the demodulation reference signal dedicated to the loaded data demodulation on the unoccupied resources, as shown in FIG. 5 to As shown in any one of FIG. 8, there is a synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe, and there is no need to load a demodulation reference signal dedicated to demodulating data; as shown in FIG. 9 or FIG.
  • the transmitting device In the synchronization control channel subframe that does not include the synchronization signal, the transmitting device originally needs to separately load a demodulation reference signal for the synchronous control channel. Since the transmitting device is also the transmitter of the synchronization source, it can also be used for synchronization.
  • the demodulation reference signal of the control channel demodulation is used as the demodulation reference signal of the loaded data, and the demodulation reference signal dedicated to the loaded data demodulation is not separately loaded on the unoccupied resources, as shown in FIG. For example, an example of the bandwidth of the loaded data within the bandwidth of the synchronization signal or the synchronization control channel.
  • the bandwidth of the loaded data exceeds the bandwidth of the synchronization signal or the synchronous control channel:
  • another embodiment of a signaling method in an embodiment of the present invention includes:
  • the transmitting end device determines an unoccupied resource in a D2D synchronization signal subframe and/or a synchronization control channel subframe.
  • FIG. 15 an example diagram is shown in which the bandwidth of the loaded data exceeds the bandwidth of the synchronization signal or the synchronization control channel.
  • the synchronization signal subframe and/or the synchronization control channel subframe are ready to be loaded.
  • the bandwidth of the data exceeds the bandwidth of the synchronization signal or the synchronization control channel. Therefore, when determining the unoccupied resources in the D2D synchronization signal subframe and/or the synchronization control channel subframe, the synchronization signal or the portion outside the bandwidth of the synchronization control channel is also It is an unoccupied resource.
  • the transmitting end device loads a fifth reference signal at a position outside the bandwidth of the synchronization signal or the synchronization control channel in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting device since there is no demodulation reference signal outside the bandwidth of the synchronization signal or the synchronization control channel in the D2D synchronization signal subframe and/or the synchronization control channel subframe, in order to demodulate the data to be loaded later, the transmitting device is in the In the synchronization signal subframe and/or the synchronization control channel subframe, the fifth reference signal is loaded at a position outside the bandwidth of the synchronization signal or the synchronization control channel.
  • the DMRS 5 is an example of the loaded fifth reference signal as shown in FIG.
  • the specific method for loading the fifth reference signal may include the following manners:
  • the transmitting end device generates a demodulation reference sequence on a bandwidth of the data in the synchronization signal subframe and/or the synchronization control channel subframe, and demodulates the reference sequence and the synchronization signal on the bandwidth of the data. Or partially deleting the bandwidth of the control channel, and placing the remaining portion of the demodulation reference sequence at a corresponding position to generate the fifth reference signal;
  • the transmitting end device generates the fifth reference signal at a position where the bandwidth of the data in the synchronization signal subframe and/or the synchronization control channel subframe does not overlap with the bandwidth of the synchronization signal or the synchronization control channel.
  • the above two methods may be used to generate the fifth reference signal. It is to be understood that there are other ways in which the fifth reference signal can be generated, which is not limited herein.
  • the transmitting end device loads data on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe include subframes, symbols, or bandwidths that are not occupied by the synchronization signal and the synchronization control channel, the GAP, and the demodulation reference signal.
  • the bandwidth of the loaded data exceeds the bandwidth of the synchronization signal or the synchronization control channel.
  • the transmitting end device sends the loaded data to a receiving end device.
  • the transmitter device loads data on the unoccupied resource in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data sent in the synchronization signal subframe and/or the synchronization control channel subframe is sent to the receiver. End device.
  • the transmitting device when the bandwidth of the loaded data exceeds the bandwidth of the synchronization signal or the synchronization control channel, performs the synchronization signal or the synchronization control in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the fifth reference signal is loaded, so that the data can be loaded outside the bandwidth of the synchronization signal or the synchronization control channel, and the synchronization signal subframe and/or the synchronization control channel subframe are utilized to a greater extent. Time-frequency resources.
  • the positional relationship between the bandwidth of the data and the bandwidth of the synchronization signal or the synchronization control channel may be two cases, one is The bandwidth of the data includes the bandwidth of the synchronization signal or the synchronization control channel, and the other is the end of the bandwidth of the data and the end of the bandwidth of the synchronization signal or the synchronization control channel, and the bandwidth of the part of the data at the other end is in the synchronization signal or The outside of the bandwidth of the synchronous control channel.
  • priority should be given: when the bandwidth of the data is greater than the bandwidth of the synchronization signal or the synchronous control channel, the bandwidth of the data does not span the bandwidth of the synchronization signal or the synchronization control channel; when the bandwidth of the data is smaller than the synchronization signal or the synchronization control signal When bandwidth is used, the bandwidth of the data is in the bandwidth of the synchronization signal or the synchronization control channel.
  • the transmitting device is the transmitter of the data, but not necessarily the transmitter of the synchronization source.
  • the transmitting end device may be a transmitter of a synchronization source or a transmitter of a synchronization source, and the loaded data uses a reference signal separately loaded by the transmitting end data as a demodulation reference signal, and is divided into two modes. : Time or superimposed.
  • another embodiment of a signaling method in an embodiment of the present invention includes:
  • the transmitting end device determines an unoccupied resource in a D2D synchronization signal subframe and/or a synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, and the synchronization control channel subframe includes a synchronization control channel. ;
  • the transmitting device determines unoccupied resources in the D2D synchronization signal subframe (D2DSS subframe) and/or the synchronization control channel subframe (PD2DSCH subframe).
  • D2DSS subframe D2D synchronization signal subframe
  • PD2DSCH subframe synchronization control channel subframe
  • the transmitting end device loads the first symbol in the synchronization signal subframe that is not occupied by the synchronization signal and is different from the synchronization signal.
  • the transmitting end device When the synchronization control channel subframe does not include a synchronization signal, the transmitting end device is not occupied by the synchronization control channel and is different from the synchronization control channel in the synchronization control channel subframe. Loading a second reference signal;
  • the loaded The second reference signal can simultaneously serve as a demodulation reference signal of the synchronization control channel.
  • the partial symbol of the synchronization control channel subframe is also dedicated to demodulating the solution of the synchronous control channel. Used by the reference signal.
  • the transmitting end device is not in the synchronization signal subframe or the synchronization control channel subframe.
  • the synchronization signal and the synchronization control channel occupy, and the third reference signal is loaded on the symbol at a different position from the synchronization signal and the synchronization control channel.
  • an example of loading a third reference signal in a time division manner in a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal and a synchronization control channel where the transmitting device is In the synchronization signal sub-frame, the synchronization signal and the synchronization control channel are not occupied, and the third reference signal DMRS3 is loaded on the symbol different from the synchronization signal and the synchronization control channel.
  • step 1602 to step 1604 at least one step may be selected according to different situations of the subframes sent by the transmitting device, and not all steps are performed, which is not limited herein.
  • the loaded first reference signal, the second reference signal, or the third reference signal has the same bandwidth as the data.
  • the first reference signal, the second reference signal, or the third reference signal are respectively generated by a uniquely determined sequence, and the corresponding sequence generating method includes:
  • the transmitting end device loads data on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting device determines the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data is loaded on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe at this time include the subframes occupied by the unsynchronized signal, the synchronization control channel, the GAP, the first reference signal, the second reference signal, and the third reference signal. , symbol or bandwidth.
  • the transmitting end device sends the loaded data to a receiving end device.
  • the transmitter device loads data on the unoccupied resource in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data sent in the synchronization signal subframe and/or the synchronization control channel subframe is sent to the receiver. End device.
  • the first reference signal, the second reference signal, or the third reference signal is loaded in the synchronization signal subframe and/or the synchronization control channel subframe by using the time division method, thereby ensuring that the loaded data can be smoothly demodulated.
  • another embodiment of a signaling method in an embodiment of the present invention includes:
  • the transmitting end device determines an unoccupied resource in a D2D synchronization signal subframe and/or a synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, and the synchronization control channel subframe includes a synchronization control channel. ;
  • the transmitting end device superimposes and loads the fourth reference signal on a symbol occupied by the synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe.
  • a transmitting end device superimposes a fourth reference signal on a symbol occupied by a synchronization signal, in a synchronization signal subframe and/or a synchronization control channel subframe including a synchronization signal
  • the transmission superimposes and loads the fourth reference signal DMRS4 on the symbol occupied by the synchronization signal.
  • the transmitting device in a synchronization control channel subframe that does not include a synchronization signal, if the transmitting device is a synchronization source transmitter, the transmitting device can be occupied by the synchronization control channel and the synchronous control channel.
  • the fourth reference signal is loaded on the symbol of the different location. If the transmitting device is not the synchronous source transmitter, the transmitting device may synchronize the symbol occupied by the demodulation reference signal of the control channel in the synchronous control channel subframe. , superimposing the fourth reference signal.
  • the bandwidth of the loaded fourth reference signal is the same as the bandwidth of the data.
  • some of the signals in the synchronization signal sub-frame will perform power back-off, so that the power at the back-off can be used to demodulate the transmission of the reference signal. That is to say, the demodulation reference signal can be superimposed on the symbol on which the synchronization signal is located for transmission. That is, the demodulation reference signal and the synchronization signal are superimposed on the same symbol in the synchronization signal sub-frame using different powers. give away.
  • the demodulation reference signal is used to demodulate the D2D data, and the synchronization signal is used for synchronization of the D2D receiver.
  • the transmitting end device loads data on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting device determines the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data is loaded on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe include an unsynchronized signal, a synchronization control channel, a GAP, a subframe, a symbol or a bandwidth occupied by the fourth reference signal.
  • the transmitting device sends the loaded data to the receiving device.
  • the transmitter device loads data on the unoccupied resource in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data sent in the synchronization signal subframe and/or the synchronization control channel subframe is sent to the receiver. End device.
  • the fourth reference signal is superimposed on the synchronization signal as a demodulation reference signal of the data, which saves the position of the symbol in the synchronization signal subframe and/or the synchronization control channel subframe, and increases the loadability of the data.
  • Time domain resources improve the utilization of resources.
  • the transmitting device may first determine whether each synchronization source quality check is a quasi-co-site (QCL). Then, different manners are selected according to the judgment result to perform demodulation reference signal and data loading.
  • QCL refers to the signals from multiple independent transmitters, the parameters corresponding to the channels they experience (such as the maximum delay spread corresponding to the channel, the maximum frequency spread, or the maximum Doppler shift value, etc.) from the receiver. Looking at the differences, they can be approximated as signals from the same site.
  • the transmitter judges by receiving the D2DSS of all synchronization sources in the group before transmitting the data, and estimating and analyzing their channels. If the channels of all synchronization sources are approximately the same, the conditions of the QCL can be considered to be satisfied. .
  • the QCL can also be obtained by means of network signaling. The network can determine whether each synchronization source in the current group is a QCL by acquiring the channel information of the UE on the cellular link or by reporting the channel information of each synchronization source detected by the UE.
  • another embodiment of a signaling method in an embodiment of the present invention includes:
  • the transmitting end device determines a D2D synchronization signal subframe and/or an unoccupied resource in the synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, and the synchronization control channel subframe includes a synchronization control channel. ;
  • the transmitting end device determines whether a quasi-co-site QCL is found between each synchronization source in the group;
  • the transmitting end device determines whether a quasi-co-located QCL is found between the respective synchronization sources in the group, and the QCL is used to indicate that the signals sent by the multiple transmitting end devices in the discovery group can be approximated as signals from the same station.
  • the synchronization source includes a transmitting end device and a receiving end device in the discovery group;
  • the demodulation reference signal is not loaded on the synchronization signal subframe or the synchronization control channel subframe, or the bandwidth of the synchronization signal or the synchronization control channel is The fifth reference signal is loaded at the outer position.
  • the bandwidth of the synchronization signal or the synchronization control channel in the synchronization signal subframe or the synchronization control channel subframe may be compared with the bandwidth of the data to be loaded, when the bandwidth of the loaded data is within the bandwidth of the synchronization signal or the synchronization control channel.
  • the demodulation reference signal dedicated to the demodulation-loaded data may not be loaded, because the synchronization signal subframe or the synchronization control channel subframe has a synchronization signal, The synchronization signal is used as the demodulation reference signal of the loaded data.
  • the demodulation reference signal of the demodulation synchronous control channel can be used as the loaded data. Demodulate the reference signal.
  • the bandwidth of the data to be loaded exceeds the bandwidth of the synchronization signal or the synchronization control channel
  • the data loaded outside the bandwidth of the synchronization signal or the synchronization control channel cannot utilize the demodulation reference signal of the synchronization signal or the synchronization control channel as the demodulation reference.
  • the fourth reference signal is superimposed and loaded on the symbol occupied by the synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe, or
  • the first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal in the synchronization signal subframe that does not include the synchronization control channel, and is not synchronously controlled in the synchronization control channel subframe that does not include the synchronization signal.
  • a second reference signal is loaded on a symbol occupied by the channel and different from the synchronous control channel, and a synchronization signal subframe including both the synchronization signal and the synchronization control channel Or in the synchronization control channel subframe, the third reference signal is loaded on the symbol that is not occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel.
  • the demodulation reference signal is loaded in the synchronization signal subframe or the synchronization control channel subframe in a manner that the superposition can be selected, thereby saving part.
  • the demodulation reference signal may be loaded on the unoccupied symbol in a time division manner: in the synchronization signal sub-frame not including the synchronization control channel, the synchronization signal is not occupied and is different from the synchronization signal.
  • the first reference signal is loaded on the symbol
  • the second reference signal is loaded on the symbol that is not occupied by the synchronization control channel and is different from the synchronous control channel in the synchronization control channel subframe that does not include the synchronization signal, and includes the synchronization signal Unsynchronized signal and synchronous control in a synchronization signal subframe or a synchronization control channel subframe including a synchronous control channel
  • a third reference signal is loaded on a symbol occupied by the channel and at a different location from the synchronization signal and the synchronization control channel.
  • the transmitting end device loads data on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting device determines the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data is loaded on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe include an unsynchronized signal, a synchronization control channel, a GAP, a subframe, a symbol or a bandwidth occupied by the first reference signal to the fifth reference signal.
  • the transmitting end device sends the loaded data to the receiving end device.
  • the transmitter device loads data on the unoccupied resource in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data sent in the synchronization signal subframe and/or the synchronization control channel subframe is sent to the receiver. End device.
  • the transmitting end device loads the data and demodulates the reference signal, it is first determined whether For the QCL, the demodulation reference signal is loaded according to the judgment result in a different manner, so that the loading of the demodulation reference signal is more flexible.
  • the transmitting end device determines an unoccupied resource in the D2D synchronization signal subframe and/or the synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, and the synchronization control channel subframe includes a synchronization control channel. ;
  • the transmitting end device determines whether the transmitting end device is a synchronous source transmitter
  • step 2304 is triggered.
  • the synchronized source transmitter is the transmitter of the synchronization signal and/or the synchronization control channel.
  • the demodulation reference signal is not loaded on the synchronization signal subframe or the synchronization control channel subframe, or the fifth reference signal is loaded at a position outside the bandwidth of the synchronization signal or the synchronization control channel, or the synchronization signal is
  • the fourth reference signal is superimposed on the symbol occupied by the synchronization signal in the subframe and/or the synchronization control channel subframe, or is not occupied by the synchronization signal and is different from the synchronization signal in the synchronization signal subframe not including the synchronization control channel.
  • the signal also includes a synchronization signal subframe or a synchronization control channel subframe of the synchronization control channel, and the third reference signal is loaded on the symbol that is not occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel;
  • the transmitting device When the transmitting device is a synchronous source transmitter, it may also be determined according to various situations to perform a subsequent operation of loading and demodulating the reference signal, for example, if more data needs to be loaded, more time domains are utilized.
  • the resource loads the data, and the demodulation reference signal is loaded in the synchronization signal subframe or the synchronization control channel subframe in a manner that the superposition can be selected, so that part of the symbol resource can be saved to load the data: in the synchronization signal subframe and/or
  • the fourth reference signal is superimposed on the symbol occupied by the synchronization signal in the synchronization control channel subframe; if it is desired to ensure that the demodulation reference signals do not interfere with each other, the accuracy of the demodulation can be ensured, and the time division method can be adopted, which is unoccupied.
  • a demodulation reference signal on a symbol not occupied by the synchronization signal and different from the synchronization signal in the synchronization signal subframe not including the synchronous control channel
  • Loading a first reference signal on the symbol loading a second reference signal on a symbol that is not occupied by the synchronization control channel and different from the synchronization control channel in a synchronization control channel subframe that does not include the synchronization signal, including synchronization
  • the signal also includes a synchronization signal subframe or a synchronization control channel subframe of the synchronization control channel, and the third reference signal is loaded on the symbol that is not occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel.
  • the demodulation reference signal dedicated to demodulation-loaded data is no longer loaded on the synchronization signal subframe or the synchronization control channel subframe, and the synchronization signal may be used when there is a synchronization signal in the synchronization signal subframe or the synchronization control channel subframe.
  • the demodulation reference signal of the loaded data when there is no synchronization signal, it must be used for demodulation.
  • a control channel demodulation reference signal can demodulate the synchronization control channel demodulation reference signal as a demodulation reference signal data loaded.
  • the bandwidth of the data to be loaded exceeds the bandwidth of the synchronization signal or the synchronization control channel
  • the data loaded outside the bandwidth of the synchronization signal or the synchronization control channel cannot utilize the demodulation reference signal of the synchronization signal or the synchronization control channel as the demodulation reference.
  • Signal at this time, it is necessary to load a demodulation reference signal dedicated to demodulating the loaded data outside the bandwidth of the synchronization signal or the synchronization control channel.
  • the transmitting end device determines whether a quasi-co-site QCL is found between each synchronization source in the group.
  • the transmitting end device determines whether each synchronization source in the group is a quasi-co-site QCL, and the QCL is used to indicate multiple transmitting ends in the discovery group.
  • the signal sent by the device may be approximated as a signal from the same site, and the synchronization source includes a transmitting device and a receiving device in the discovery group;
  • the so-called QCL refers to the signals from multiple independent transmitters, the parameters corresponding to the channels they experience (such as the maximum delay spread corresponding to the channel, the maximum frequency spread, or the maximum Doppler shift value, etc.) from the receiver. Looking at the differences, they can be approximated as signals from the same site.
  • the transmitter judges by receiving the D2DSS of all synchronization sources in the group before transmitting the data, and estimating and analyzing their channels. If the channels of all synchronization sources are approximately the same, the conditions of the QCL can be considered to be satisfied. .
  • the QCL can also be obtained by means of network signaling.
  • the network can determine whether each synchronization source in the current group is a QCL by acquiring the channel information of the UE on the cellular link or by reporting the channel information of each synchronization source detected by the UE.
  • each synchronization source in the discovery group is a QCL
  • the demodulation reference signal is not loaded on the synchronization signal subframe or the synchronization control channel subframe, or the bandwidth of the synchronization signal or the synchronization control channel is
  • the fifth reference signal is loaded at the outer position.
  • the bandwidth of the synchronization signal or the synchronization control channel in the synchronization signal subframe or the synchronization control channel subframe may be compared with the bandwidth of the data to be loaded, when the bandwidth of the loaded data is within the bandwidth of the synchronization signal or the synchronization control channel.
  • the demodulation reference signal dedicated to the demodulation-loaded data may not be loaded, because the synchronization signal subframe or the synchronization control channel subframe has a synchronization signal, The synchronization signal is used as the demodulation reference signal of the loaded data.
  • the demodulation reference signal of the demodulation synchronous control channel can be used as the loaded data. Demodulate the reference signal.
  • the bandwidth of the data to be loaded exceeds the bandwidth of the synchronization signal or the synchronization control channel
  • the data loaded outside the bandwidth of the synchronization signal or the synchronization control channel cannot utilize the demodulation reference signal of the synchronization signal or the synchronization control channel as the demodulation reference.
  • the fourth reference signal is superimposed and loaded on the symbol occupied by the synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe, or
  • the first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal in the synchronization signal subframe that does not include the synchronization control channel, and is not synchronously controlled in the synchronization control channel subframe that does not include the synchronization signal.
  • the second reference signal is loaded on the symbol occupied by the channel and different from the synchronous control channel, and the synchronization signal and the synchronization control are performed in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel.
  • a third reference signal is loaded on a symbol occupied by the channel and at a different location from the synchronization signal and the synchronization control channel.
  • the demodulation reference signal is loaded in the synchronization signal subframe or the synchronization control channel subframe in a manner that the superposition can be selected, thereby saving part.
  • Symbolic resources to load data in the synchronization signal sub-frame and/or synchronization control
  • the fourth reference signal is superimposed on the symbol occupied by the synchronization signal in the channel subframe; if it is desired to ensure that the demodulation reference signals do not interfere with each other, and the accuracy of the demodulation is ensured, the time division method may be adopted on the unoccupied symbol.
  • a first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal in a synchronization signal subframe that does not include the synchronization control channel
  • a synchronization control channel that does not include the synchronization signal
  • a second reference signal is loaded on a symbol in the frame that is not occupied by the synchronization control channel and is different from the synchronous control channel, in a synchronization signal subframe or a synchronization control channel subframe that includes both the synchronization signal and the synchronization control channel
  • a third reference signal is loaded on the symbol occupied by the synchronization signal and the synchronization control channel and at a different location from the synchronization signal and the synchronization control channel.
  • the transmitting end device loads data on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting device determines the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data is loaded on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe include an unsynchronized signal, a synchronization control channel, a GAP, a subframe, a symbol or a bandwidth occupied by the first reference signal to the fifth reference signal.
  • the transmitting end device sends the loaded data to the receiving end device.
  • the transmitter device loads data on the unoccupied resource in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data sent in the synchronization signal subframe and/or the synchronization control channel subframe is sent to the receiver. End device.
  • the transmitting end device before the transmitting end device loads the data and demodulates the reference signal, it is first determined whether the transmitting end device is a synchronous source transmitter, and the demodulation reference signal is loaded according to the judgment result according to the judgment result, so that the demodulation is performed.
  • the loading of the reference signal is more flexible.
  • the transmitting device loads data on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting device is in the synchronization signal subframe and/or The step of loading data on the unoccupied resource in the synchronization control channel subframe further includes: the transmitting end device performing rate matching on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel.
  • FIG. 24 is an application scenario in which an unoccupied resource is used in a cellular link, where the base station and the cellular terminal use the synchronization signal subframe and/or the unoccupied resource in the synchronization control channel subframe to transmit the cellular Data, and the synchronization signal and/or the synchronization control channel in the D2D link is transmitted between the cellular terminal and the cellular terminal using the synchronization signal subframe and/or the resources occupied in the synchronization control channel subframe, such as shown in FIG.
  • the cellular terminal UE4 and the base station device use the unoccupied resources to transmit the cellular link data
  • the cellular terminal UE1 and the UE2 and the UE3 use the occupied resources to transmit the synchronization signal and/or the synchronization control channel in the D2D link.
  • the base station loads the data on the unoccupied resource and then sends the data to the cellular terminal.
  • the base station is the transmitting end device in the embodiment of the present invention
  • the cellular terminal is the receiving end device in the embodiment of the present invention.
  • the base station loads the data and demodulates the reference signal on the unoccupied resources in the synchronization signal subframe or the synchronization control channel subframe, and the base station can be used as the transmitting device, and the foregoing embodiments are used for the transmission.
  • the specific steps of loading the data and demodulating the reference signal are similar to those in the scenario of the D2D link, and are not described here.
  • the cellular terminal loads data on the unoccupied resource and then sends the data to the base station.
  • the cellular terminal is the transmitting end device in the embodiment of the present invention
  • the base station is the receiving end device in the embodiment of the present invention.
  • the difference between the data and the demodulation reference signal in the scenario of the D2D link is that the cellular terminal does not know whether the subframe of the data to be transmitted is a synchronization signal subframe or a synchronization control channel subframe, and the base station knows that it needs to Receiving an indication information sent by the base station to determine whether the currently transmitted subframe is a synchronization signal subframe or a synchronization control channel subframe, and when receiving the first indication information sent by the base station, indicating that the subframe currently transmitted by the cellular terminal is a synchronization signal
  • the subsequent steps of determining the unoccupied resources in the D2D synchronization signal subframe and/or the synchronization control channel subframe are performed, and the subsequent steps are specific to the D2D link.
  • the process is similar. The following is an example of several embodiments:
  • another embodiment of a signaling method in an embodiment of the present invention includes:
  • the transmitting end device receives first indication information sent by the receiving end device, where the first indication information is And indicating whether the subframe currently transmitted by the transmitting device is a synchronization signal subframe and/or a synchronization control channel subframe;
  • the transmitting end device is a cellular terminal, and the receiving end device is a base station.
  • the first indication information may be information indicated by an explicit signaling, or may be information carried by a specific reference signal.
  • the first indication information includes at least two states when transmitting, that is, the indication is a synchronization signal subframe and/or a synchronization control channel subframe; and the indication is not a synchronization signal subframe and/or a synchronization control channel subframe.
  • the transmitting device determines that the D2D synchronization signal subframe and/or the synchronization control channel subframe is not a synchronization resource, where the synchronization signal subframe includes a synchronization signal, and the synchronization control channel subframe includes a synchronization control channel;
  • the transmitting end device loads data on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting device determines the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data is loaded on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting end device sends the loaded data to the receiving end device.
  • the transmitter device loads data on the unoccupied resource in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data sent in the synchronization signal subframe and/or the synchronization control channel subframe is sent to the receiver. End device.
  • the transmitting device can only transmit the symbol loaded with the data, and demodulate the symbol of the demodulated signal of the data to the receiving device, and can also send the complete synchronization signal subframe and/or the synchronization control channel subframe. To the receiving device, it is not limited here.
  • the sending end device when the sending end device is a cellular terminal, the first indication information sent by the base station needs to be received first, and the first indication information determines that the currently transmitted subframe is a synchronization signal subframe and/or a synchronization control channel.
  • the step of determining the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe in the embodiment of the present invention is performed, so that the synchronization signal subframe and/or the synchronization control channel subframe are not occupied.
  • the resources can be used to transmit data for cellular links, broadening the range of use of unoccupied resources.
  • the reference signal is loaded.
  • the specific process can be changed as follows:
  • the transmitting device receives the first indication information sent by the receiving device, where the first indication information is used to indicate whether the subframe currently transmitted by the transmitting device is a synchronization signal subframe and/or a synchronization control channel subframe.
  • the transmitting end device is a cellular terminal, and the receiving end device is a base station.
  • the first indication information may be information indicated by an explicit signaling, or may be information carried by a specific reference signal.
  • the first indication information includes at least two states when transmitting, that is, the indication is a synchronization signal subframe and/or a synchronization control channel subframe; and the indication is not a synchronization signal subframe and/or a synchronization control channel subframe.
  • the transmitting device determines that the D2D synchronization signal subframe and/or the synchronization control channel subframe are not a synchronization resource, where the synchronization signal subframe includes a synchronization signal, and the synchronization control channel subframe includes a synchronization control channel;
  • the transmitting end device loads the first symbol in the synchronization signal sub-frame that is not occupied by the synchronization signal and is different from the synchronization signal.
  • the transmitting end device When the synchronization control channel subframe does not include a synchronization signal, the transmitting end device is not occupied by the synchronization control channel and is different from the synchronization control channel in the synchronization control channel subframe. Loading a second reference signal;
  • the loaded The second reference signal can simultaneously serve as a demodulation reference signal of the synchronization control channel.
  • the partial symbol of the synchronization control channel subframe is also dedicated to demodulating the solution of the synchronous control channel. Used by the reference signal.
  • the transmitting device is not in the synchronization signal subframe or the synchronization control channel subframe.
  • the synchronization signal and the synchronization control channel occupy, and the third reference signal is loaded on the symbol at a different position from the synchronization signal and the synchronization control channel.
  • an example of loading a third reference signal in a time division manner in a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal and a synchronization control channel where the transmitting device is In the synchronization signal sub-frame, the synchronization signal and the synchronization control channel are not occupied, and the third reference signal DMRS3 is loaded on the symbol different from the synchronization signal and the synchronization control channel.
  • step 3 to step 5 according to different situations of the subframes sent by the transmitting device, at least one of the steps may be selected, and not all steps are performed, which is not limited herein.
  • the loaded first reference signal, the second reference signal, or the third reference signal has the same bandwidth as the data.
  • the first reference signal, the second reference signal, or the third reference signal are respectively generated by a uniquely determined sequence, and the corresponding sequence generating method includes:
  • the transmitting end device loads data on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel subframe;
  • the transmitting device determines the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data is loaded on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe at this time include the subframes occupied by the unsynchronized signal, the synchronization control channel, the GAP, the first reference signal, the second reference signal, and the third reference signal. , symbol or bandwidth.
  • the transmitting device sends the loaded data to the receiving device.
  • the transmitter device loads data on the unoccupied resource in the synchronization signal subframe and/or the synchronization control channel subframe
  • the data sent in the synchronization signal subframe and/or the synchronization control channel subframe is sent to the receiver. End device.
  • the demodulation reference is subsequently loaded on the unoccupied resource.
  • the steps of the signal or the data are similar to the specific processes in the foregoing embodiments of the D2D link.
  • the specific loading mode of the embodiments in the foregoing D2D link can be applied in the subsequent steps, and details are not described herein.
  • the demodulation reference signal loaded therein can be used for loading.
  • the demodulation of data can also be used for demodulation of the synchronization control channel; the demodulation reference signal for demodulating the loaded data and the demodulation reference signal for demodulating the control channel can be one or shared.
  • this can improve the demodulation efficiency; in addition, in this case, when the bandwidth of the data exceeds the bandwidth of the synchronous control channel, the transmitting device can directly generate a demodulation reference signal on the bandwidth of the data, thus synchronizing the control channel And the data within the bandwidth of the synchronous control channel can be partially demodulated within the bandwidth of the synchronous control channel using the generated demodulation reference signal, and the data loaded outside the bandwidth of the synchronous control channel can be demodulated using the bandwidth outside the synchronous control channel.
  • the externally loaded demodulation reference signal may be loaded on the same symbol as the demodulation reference signal within the bandwidth of the synchronous control channel, which may be generated separately or simultaneously, and may also be generated multiple times, simultaneously as data and synchronization. Demodulation reference signal of the control channel.
  • the synchronization signal subframe and the synchronization signal subframe are also required. / or synchronous control channel subframes for rate matching.
  • the rate matching of the transmitter is performed on the corresponding time-frequency resource.
  • the data to be transmitted cannot be mapped to the resource that has been used, but the original information bit to be transmitted is generated in the process of generating the encoded bit by the encoder, and the coded bit is generated according to the available usable resource, and then Map to resources that are available for use.
  • an embodiment of a signal receiving method in an embodiment of the present invention includes:
  • the receiving end device receives data that is sent by the transmitting end device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, where the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control channel subframe a synchronization control channel subframe for D2D;
  • the receiving end device parses the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the receiving end device receives the data that is sent by the transmitting end device and is loaded in the synchronization signal sub-frame and/or the synchronization control channel sub-frame, and parses out the synchronization signal sub-frame and/or the synchronization control channel sub-frame.
  • the data of the data utilizes resource transmission data of the synchronization favorite subframe and/or the synchronization control channel subframe, thereby improving resource utilization.
  • the receiving device will parse the data differently:
  • the data received by the receiving device is data of the D2D link.
  • the transmitting device is a transmitter of data and a transmitter of a synchronous source.
  • the bandwidth of the loaded data is within the bandwidth of the synchronization signal or the synchronous control channel:
  • another embodiment of the signal receiving method in the embodiment of the present invention includes:
  • the receiving end device receives data that is sent by the transmitting end device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, where the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control channel subframe a synchronization control channel subframe for D2D;
  • the bandwidth of the data is within the bandwidth of the synchronization signal or the synchronization control channel.
  • the receiving end device uses the synchronization signal as a demodulation reference signal of the data, and parses out the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the transmitting end device is a transmitter of data and is also a transmitter of the synchronization source, and the bandwidth of the loaded data is within the bandwidth of the synchronization signal or the synchronous control channel, and is included in the synchronization signal subframe or the synchronization control signal subframe.
  • the receiving device can use the synchronization signal as the demodulation reference signal of the data; when the synchronization control channel subframe does not contain the synchronization signal, the receiving device can use the synchronization control channel subframe for demodulation synchronization.
  • the demodulation reference signal of the control signal serves as a demodulation reference signal for the data.
  • the receiving end device uses the synchronization signal as the demodulation reference signal of the loaded data. Number, accurately parsing out the loaded data.
  • the bandwidth of the loaded data exceeds the bandwidth of the synchronization signal or the synchronous control channel:
  • another embodiment of a signal receiving method in an embodiment of the present invention includes:
  • the receiving end device receives the data that is sent by the transmitting end device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, and the fifth reference signal, where the fifth reference signal is loaded in the synchronization signal subframe and/or Or at a position outside the bandwidth of the synchronization signal or the synchronization control channel in the synchronization control channel subframe;
  • the receiving end device uses the third reference signal and the synchronization signal as a demodulation reference signal of the data, and parses the including a synchronization signal sub-frame having a synchronization signal or the data in a synchronization control channel subframe;
  • the receiving end device uses the third reference signal as a demodulation reference signal of data outside the bandwidth of the synchronization control channel, and uses a solution dedicated to the synchronization control channel.
  • the tone reference signal is used as a demodulation reference signal for data within the bandwidth of the synchronization control channel, and the data in the synchronization control channel subframe not including the synchronization signal is parsed.
  • the fifth reference signal that is loaded outside the bandwidth of the synchronization signal or the synchronization control channel is used for parsing, and the synchronization signal or synchronization is accurately obtained. Data outside the bandwidth of the control channel.
  • the transmitting device is the transmitter of the data, but not necessarily the transmitter of the synchronization source.
  • another embodiment of the signal receiving method in the embodiment of the present invention includes:
  • the receiving end device receives data and a first reference signal that are loaded on a synchronization signal subframe that does not include a synchronization control channel, where the first reference signal is not loaded in the synchronization signal subframe that does not include the synchronization control channel. a symbol on which the sync signal occupies and is different from the sync signal;
  • the receiving end device receives data and a second reference signal that are loaded on a synchronization control channel subframe that does not include a synchronization signal, where the second reference signal is recorded in the synchronous control channel subframe and is not synchronized with the control channel.
  • the receiving end device receives data and a third reference signal that are loaded on a synchronization signal subframe or a synchronization control channel subframe that includes a synchronization signal and a synchronization control channel, where the third reference signal is loaded in the synchronization signal.
  • the synchronization signal and the synchronization control signal are not in the frame or synchronization control channel subframe a symbol occupied by the track and at a different position from the synchronization signal and the synchronization control channel;
  • the receiving end uses the first reference signal as a demodulation reference signal of the data, and parses the synchronization signal subframe that does not include a synchronization control channel.
  • the receiving end uses the second reference signal as a demodulation reference signal of the data, and parses the synchronization control channel subframe that does not include a synchronization signal.
  • the receiving end uses the third reference signal as a demodulation reference signal of the data, and parses the including synchronization The synchronization signal sub-frame of the signal and synchronization control channel or the data in the synchronization control channel sub-frame.
  • the receiving end device uses the first reference signal, the second reference signal, or the third reference signal that are loaded on the synchronization signal subframe or the synchronization control channel subframe in a time division manner as a demodulation reference of the loaded data.
  • the signal accurately resolves the data loaded in the sync signal sub-frame or the sync control channel sub-frame.
  • another embodiment of a signal receiving method in an embodiment of the present invention includes:
  • the receiving end device receives data loaded in a synchronization signal subframe and/or a synchronization control channel subframe and a fourth reference signal, where the fourth reference signal is superimposed and loaded on a symbol occupied by the synchronization signal;
  • the receiving end uses the fourth reference signal as a demodulation reference signal of the data, and parses out the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the receiving end device uses the fourth reference signal that is loaded on the synchronization signal subframe or the synchronization control channel subframe in a superimposed manner as a demodulation reference signal of the loaded data, and accurately parses the loaded synchronization signal. Subframe or synchronization control data in the channel sub-frame.
  • the receiving device may first receive the indication signaling sent by the transmitting device to indicate whether the synchronization sources in the group are QCLs, and then parse the data according to the indication result in different manners:
  • another embodiment of the data receiving method in the embodiment of the present invention includes:
  • the receiving end device receives the indication signaling sent by the sending end device, where the indication signaling is used to indicate whether the synchronization source between the groups is a QCL, and the QCL is used to indicate multiple
  • the signal sent by the transmitting device is approximately a signal from the same site, and the synchronization source includes a transmitting device and a receiving device in the discovery group;
  • the so-called QCL refers to the signals from multiple independent transmitters, the parameters corresponding to the channels they experience (such as the maximum delay spread corresponding to the channel, the maximum frequency spread, or the maximum Doppler shift value, etc.) from the receiver. Looking at the differences, they can be approximated as signals from the same site.
  • the transmitter judges by receiving the D2DSS of all synchronization sources in the group before transmitting the data, and estimating and analyzing their channels. If the channels of all synchronization sources are approximately the same, the conditions of the QCL can be considered to be satisfied. .
  • the QCL can also be obtained by means of network signaling.
  • the network can determine whether each synchronization source in the current group is a QCL by acquiring the channel information of the UE on the cellular link or by reporting the channel information of each synchronization source detected by the UE.
  • the receiving end device receives data loaded in a synchronization signal subframe and/or a synchronization control channel subframe, or The receiving end device receives the data loaded in the synchronization signal subframe and/or the synchronization control channel subframe and the fifth reference signal, and the fifth reference signal is loaded in the synchronization signal subframe and/or the synchronization control channel subframe. a position outside the bandwidth of the synchronization signal or the synchronization control channel;
  • the receiving end device receives data and a first reference signal that are loaded on a synchronization signal subframe that does not include the synchronization control channel. And the first reference signal is loaded on the symbol of the synchronization signal sub-frame that does not include the synchronization control channel and is not occupied by the synchronization signal and is different from the synchronization signal, and the receiving end device receives the loading without including the synchronization signal.
  • the receiving The end device receives the data and the third reference signal loaded on the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel, and the third reference signal is loaded in the synchronization signal subframe or the synchronization control channel a symbol in a subframe that is not occupied by the synchronization signal and the synchronization control channel and that is different from the synchronization signal and the synchronization control channel
  • the receiving end device receives the loading in the synchronization signal subframe and/or the synchronization control channel.
  • the receiving end uses the synchronization signal as a demodulation reference signal of the data, and parses out the synchronization signal subframe and/or Or synchronizing the data in the control channel subframe, or in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal, the receiving end device uses the third reference signal and the synchronization signal as the a demodulation reference signal of the data, parsing the data in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal, in the synchronization control channel subframe not including the synchronization signal, the receiving end The device uses the third reference signal as a demodulation reference signal of data outside the bandwidth of the synchronization control channel, and uses a demodulation reference signal dedicated to the synchronization control channel as a demodulation reference signal of data in a bandwidth of the synchronization control channel, and parses out The data in the synchronization control channel sub
  • the receiving end uses the first reference signal as a location. a demodulation reference signal of the data, parsing the data in the synchronization signal subframe not including the synchronization control channel, and in the synchronization control channel subframe not including the synchronization signal, the receiving end uses the second a reference signal as a demodulation reference signal of the data, parsing the data in the synchronization control channel subframe not including the synchronization signal, in a synchronization signal subframe or a synchronization control channel including a synchronization signal and a synchronization control channel a frame, the receiving end uses the third reference signal as a demodulation reference signal of the data, and parses out the synchronization signal subframe or the synchronization control channel subframe included in the synchronization signal and the synchronization control channel.
  • Data, or the receiving end uses the fourth reference signal as
  • the receiving end device demodulates the loaded data in different manners according to the received instruction information, and can more accurately parse the synchronous signal subframe and/or the synchronous control channel subframe. data.
  • the data received by the receiving device is data of a cellular link.
  • the base station loads the data on the unoccupied resource and then sends the data to the cellular terminal.
  • the base station is the transmitting end device in the embodiment of the present invention
  • the cellular terminal is the receiving end device in the embodiment of the present invention.
  • the difference in parsing data in the scenario of the D2D link is that the cellular terminal does not know whether the subframe received by itself is a synchronization signal subframe or a synchronization control channel subframe, and needs to first receive the second transmission by the base station.
  • the second indication information is used to indicate whether the subframe currently received by the cellular link terminal is a synchronization signal subframe or a synchronization control channel subframe, and the cellular link terminal determines the currently received subframe according to the second indication information.
  • the step of receiving the data loaded in the synchronization signal sub-frame and/or the synchronization control channel sub-frame sent by the transmitting end device is performed, and it can be understood that the subsequent reception is performed.
  • the steps of data and parsing are similar to the specific process of receiving data of the D2D link in the foregoing embodiments. The following is an example of an embodiment:
  • another embodiment of the signal receiving method in the embodiment of the present invention includes:
  • the receiver device receives the second indication information that is sent by the sending end device, where the second indication information is used to indicate whether the subframe currently received by the receiving end device is a synchronization signal subframe and/or a synchronization control channel subframe.
  • the receiving end device is a cellular link UE, and the transmitting end device is a base station.
  • the receiving device receives the loading of the synchronization signal subframe and/or the synchronization control sent by the transmitting device.
  • Data in the channel subframe, the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control channel subframe is a D2D synchronization control channel subframe;
  • the receiving end device parses the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the receiving end device when the receiving end device is a cellular link terminal and the transmitting end device is a base station, the receiving end device first receives the second indication information sent by the sending end device, and when the second indication information indicates the currently received sub
  • the frame is a synchronization signal and/or a synchronization control channel subframe subframe
  • the subsequent steps are performed such that unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe can be used to transmit data of the cellular link. , broaden the scope of use of unoccupied resources.
  • the step of receiving the second indication information sent by the sending end device in step 3201 in each embodiment of the data for receiving the D2D link may be applied to In this scenario, it is not described here.
  • the cellular terminal loads data on the unoccupied resource and then sends the data to the base station.
  • the cellular terminal is the transmitting end device in the embodiment of the present invention
  • the base station is the receiving end device in the embodiment of the present invention.
  • the specific step of the base station parsing the data loaded in the synchronization signal subframe and/or the synchronization control channel subframe, and the base station as the receiving end device refer to the foregoing embodiments of receiving the data of the D2D link.
  • the specific step of parsing the data in the synchronization signal sub-frame and/or the synchronization control channel sub-frame is similar to that in the scenario of receiving the data of the D2D link, and is not described here.
  • the synchronization signal subframe and/or Or synchronous control channel subframes for rate matching.
  • Method 1 Use explicit or implicit signaling to indicate whether the transmitter or receiver of the cellular link is to be rate matched. The location of the rate match is determined by the resources used by the D2D link in the D2DSS subframe and the resources used by the demodulation reference signal in the cellular link.
  • Method 2 For receivers of cellular links, especially downlink receivers (this is the case when TDD downlink subframes are used for D2D), a UE-based approach can be used. A method includes the UE performing detection and decoding according to the transmission of D2DSS and the transmission of no D2DSS, respectively, to see which one the corresponding decoding result is correct.
  • Another method performs despreading energy detection on the demodulated reference signal on the second symbol on the D2DSS subframe, because there is no demodulation reference signal on the second time slot, and the solution on the first time slot After the reference signal is demodulated, there must be a lower energy. If this assumption is true, it indicates that the D2DSS subframe is currently used, and the rate matching on the receiving side needs to be performed.
  • the transmission and transmission cannot be done full duplex. That is, for a D2D UE, the D2D signal and the received D2D signal must be TDM.
  • a certain D2D synchronization source needs to receive the PD2DSCH signal from other synchronization sources, and Send the PD2DSCH signal as its next hop sync source.
  • the synchronization control channel may include a first synchronization control channel and a second synchronization control channel, where the first synchronization control channel has a first transmission.
  • the end device is loaded, and the second synchronous control channel is configured by the second transmitting end device. Loading, the first synchronization control channel and the second synchronization control channel may occupy different synchronization signal subframes.
  • the synchronization control channel sent by the first transmitter device UE1 occupies the first two synchronization signal subframes
  • the synchronous control channel sent by the two transmitting end devices UE2 occupies the third and fourth synchronization signal subframes
  • the synchronous control channel transmitted by the third transmitting end device UE3 occupies the fifth and sixth synchronization signal subframes.
  • the synchronization source UE1 when the PD2DSCH is transmitted, the synchronization source UE1 does not need to receive the PD2DSCH of the 2nd and 3rd UEs in these subframes, but can receive at the position where the 2nd and 3rd UEs transmit the PD2DSCH subframe. Thereby solving the problem of half duplex limitation.
  • the PD2DSCH actually transmitted by one synchronization source UE uses only a part of the subframes, and different synchronization source UEs use different subframes in the entire period when transmitting the PD2DSCH. Also, each transmission can occupy multiple consecutive or non-contiguous subframes.
  • the location of the PD2DSCH sent by each synchronization source may be notified by the base station to the UE, or may be obtained by the UE according to certain parameters. Specifically, which D2DSS subframe is used by the synchronization source UE, multiple D2DSS subframes in the PD2DSCH period may be divided into several parts and then associated by some parameters. For example, the synchronization source UE can be obtained according to the synchronization source ID. As shown in FIG. 33, if a maximum of 3 different PD2DSCHs can be transmitted in the PD2DSCH period, all or a part of different synchronization source IDs may be used for acquisition.
  • 3 refers to the maximum number that can be indicated in the PD2DSCH period.
  • Another method for indicating that different synchronization source UEs use different subframes in the PD2DSCH period is the number of steps of the synchronization source, such as the PD2DSCH of the synchronization source of different hops being placed at different positions within the PD2DSCH period. That is, the number of synchronization source hops of the first transmitting end device and the second transmitting end device is different.
  • the first synchronous control channel and the second synchronous control channel occupy different symbols in the same synchronization signal subframe, or different synchronization sources use different OFDM symbols in the same D2DSS subframe when transmitting the PD2DSCH.
  • the PD2DSCH of the first transmitting end device UE1 can use the symbols of the four positions 0, 1, 4, 5 of the first time slot; and the PD2DSCH of the second transmitting end device UE2 Then, the symbols of the four positions 0, 1, 4, and 5 of the second time slot are used.
  • the symbol can be divided into several parts and then associated by some parameters.
  • the synchronization source UE can be obtained according to the synchronization source ID.
  • the synchronization source Since the transmitter of the synchronization source transmits D2DSS, the synchronization source must also be the transmitter of the PD2DSCH. Different synchronization sources may be independent synchronization sources, or may receive timing references of other synchronization sources, and then transmit D2DSS downwards. The hop count of the synchronization source corresponding to the independent synchronization source is the first hop, and the synchronization source that is transmitted with reference to the first synchronization source is the second hop.
  • FIG. 35 is a schematic diagram showing an example of different D2D synchronization sources having different current synchronization source hops.
  • the current synchronization source hop count at which different synchronization sources are located may be indicated by a D2DSS sequence or by signaling carried in the PD2DSCH.
  • the transmitters having different current synchronization source hops have different positions in the time domain. For example, a PD2DSCH with a hop count of 0 can be at position 0, a PD2DSCH with a hop count of 1 can have an offset position 1 relative to position 0, and a PD2DSCH with a hop count of 2 can have an offset position relative to position 0. 2.
  • the D2DSS may first determine the current hop count of the detected D2DSS, and then determine the location of the corresponding PD2DSCH according to the corresponding offset position in time. Thereby, the detection time of the PD2DSCH receiver can be further reduced.
  • an embodiment of a transmitting device in the embodiment of the present invention includes:
  • a determining module 3601 configured to determine a synchronization signal subframe of the device to the device D2D and/or an unoccupied resource in the synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, where the synchronization control channel subframe Including a synchronous control channel;
  • the data loading module 3602 is configured to load data on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe determined by the determining module 3601;
  • a sending module 3603 configured to send the data loaded by the data loading module 3602 to the interface Receiving device.
  • the determining module 3601 first determines the unoccupied resources in the D2D synchronization signal subframe and/or the synchronization control channel subframe, and the data loading module 3602 is in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the data is loaded on the unoccupied resource, and the sending module 3603 transmits the data loaded in the synchronization signal subframe and/or the synchronization control channel subframe to the receiving device, so that the D2D synchronization signal subframe is effectively utilized.
  • Unoccupied resources increase the utilization of resources by the system.
  • the data of the D2D link and the data of the loaded cellular link are respectively described by the transmitting device on the unoccupied resource:
  • the transmitting device loads the data of the D2D link on the unoccupied resource.
  • FIG. 12 is an application scenario in which an unoccupied resource is used in a D2D link, where the base station device may or may not exist, but at least (a schematic diagram of a transmitter is shown in FIG. 12)
  • the D2D transmitting end device and the several D2D receiving end devices, the transmitting end device and the receiving end device are D2D terminals.
  • D2DUE1 is a transmitting end device
  • D2DUE2 and D2DUE3 are both receiving end devices.
  • both the transmitting device and the receiving device are D2D terminals.
  • the demodulation reference signal may be loaded on the unoccupied resource in a time division manner:
  • another embodiment of the transmitting device in the embodiment of the present invention includes:
  • a determining module 3701 configured to determine, in the synchronization signal subframe of the device to the device D2D and/or an unoccupied resource in the synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, where the synchronization control channel subframe Including a synchronous control channel;
  • the data loading module 3702 is configured to load data on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe determined by the determining module 3701;
  • the sending module 3703 is configured to send the data loaded by the data loading module 3702 to the receiving end device;
  • the transmitting device further includes:
  • the first reference loading module 3704 is configured to: when the synchronization signal sub-frame does not include the synchronization control channel, is not occupied by the synchronization signal and is different from the synchronization signal in the synchronization signal subframe. Loading the first reference signal on the symbol;
  • a second reference loading module 3705 configured to: when the synchronization control channel subframe does not include a synchronization signal, in the synchronization control channel subframe, is not occupied by the synchronization control channel and is different from the synchronous control channel Loading a second reference signal on the symbol;
  • a third reference loading module 3706 configured to: when the synchronization signal subframe or the synchronization control channel subframe includes a synchronization signal and a synchronization control channel, in the synchronization signal subframe or the synchronization control channel subframe, The third reference signal is loaded on the symbol that is not occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel.
  • the transmitting device may further include:
  • a sequence generating module 3707 configured to generate, on a bandwidth of the data, a unique determined sequence corresponding to the first reference signal, the second reference signal, or the third reference signal, or on a bandwidth where the synchronization signal or the synchronization control channel is located A first portion of the uniquely determined sequence corresponding to the first reference signal, the second reference signal, or the third reference signal is generated and a second portion of the sequence is generated over the remaining bandwidth.
  • the first reference loading module 3704, the second reference loading module 3705, and the third reference loading module 3706 load the first reference signal in the synchronization signal subframe and/or the synchronization control channel subframe by using a time division method.
  • the second reference signal or the third reference signal ensures that the loaded data can be smoothly demodulated.
  • the demodulation reference signal may also be loaded on the unoccupied resources by means of superposition:
  • another embodiment of the transmitting device in the embodiment of the present invention includes:
  • a determining module 3801 configured to determine a synchronization signal subframe of the device to the device D2D and/or an unoccupied resource in the synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, where the synchronization control channel subframe Including a synchronous control channel;
  • the data loading module 3802 is configured to load data on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe determined by the determining module 3801;
  • the sending module 3803 is configured to send the data loaded by the data loading module 3802 to the receiving end device;
  • the transmitting device further includes:
  • a fourth reference loading module 3804 for using the synchronization signal subframe and/or the synchronization control channel On the symbol occupied by the synchronization signal in the frame, the fourth reference signal is superimposed and loaded.
  • the fourth reference loading module 3804 superimposes the fourth reference signal on the synchronization signal as the demodulation reference signal of the data, thereby saving the position of the symbol in the synchronization signal subframe and/or the synchronization control channel subframe, and increasing The ability to load time domain resources that are data increases the utilization of resources.
  • the demodulation reference signal can also be loaded at a position outside the bandwidth of the synchronization signal or the synchronization control channel:
  • another embodiment of the transmitting device in the embodiment of the present invention includes:
  • a determining module 3901 configured to determine a synchronization signal subframe of the device to the device D2D and/or an unoccupied resource in the synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, where the synchronization control channel subframe Including a synchronous control channel;
  • the data loading module 3902 is configured to load data on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe determined by the determining module 3901;
  • the sending module 3903 is configured to send the data loaded by the data loading module 3902 to the receiving end device;
  • the transmitting device further includes:
  • a fifth reference loading module 3904 configured to load a fifth reference signal at a position outside the bandwidth of the synchronization signal or the synchronization control channel in the synchronization signal subframe and/or the synchronization control channel subframe;
  • the fifth reference loading module 3904 is specifically configured to: in the synchronization signal subframe and/or the synchronization control channel subframe, generate a demodulation reference sequence on a bandwidth of the data, and use the bandwidth of the data. a portion of the demodulation reference sequence overlapped with the bandwidth of the synchronization signal or the control channel, and the remaining portion of the demodulation reference sequence is placed at a corresponding position to generate the fifth reference signal, or, in the synchronization
  • the fifth reference signal is generated at a position on the bandwidth of the data in the signal subframe and/or the synchronization control channel subframe that does not overlap the bandwidth of the synchronization signal or the synchronization control channel.
  • each synchronization source in the group is QCL, and then judge according to the judgment.
  • the result of the break is to load the demodulation reference signal.
  • the so-called QCL refers to the signals from multiple independent transmitters, and the parameters corresponding to the channels they experience (such as the maximum delay spread corresponding to the channel, the maximum frequency spread, or the maximum The Pule shift value, etc.) is small from the receiver and can be approximated as a signal from the same site.
  • the transmitter judges by receiving the D2DSS of all synchronization sources in the group before transmitting the data, and estimating and analyzing their channels. If the channels of all synchronization sources are approximately the same, the conditions of the QCL can be considered to be satisfied. .
  • the QCL can also be obtained by means of network signaling.
  • the network can determine whether each synchronization source in the current group is a QCL by acquiring the channel information of the UE on the cellular link or by reporting the channel information of each synchronization source detected by the UE.
  • another embodiment of the transmitting device in the embodiment of the present invention includes:
  • a determining module 4001 configured to determine, in a synchronization signal subframe of the device to the device D2D and/or an unoccupied resource in a synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, where the synchronization control channel subframe Including a synchronous control channel;
  • the data loading module 4002 is configured to load data on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe determined by the determining module 4001;
  • the sending module 4003 is configured to send the data loaded by the data loading module 4002 to the receiving end device;
  • the transmitting device further includes:
  • the quasi-work station judging module 4004 is configured to determine whether a quasi-co-located QCL is found between the respective synchronization sources in the group, and the QCL is used to indicate that the signals sent by the multiple transmitting end devices in the discovery group are approximately from the same a signal of the station, where the synchronization source includes a transmitting end device and a receiving end device in the discovery group;
  • the sixth reference loading module 4005 is configured to: when determining that the synchronization sources in the discovery group are QCLs, do not load the demodulation reference signal on the synchronization signal subframe or the synchronization control channel subframe, or in the synchronization Loading a fifth reference signal at a location outside the bandwidth of the signal or synchronization control channel;
  • a seventh reference loading module 4006 configured to: when determining that the synchronization sources in the transmission group are not QCL, superimposing and loading on the symbols occupied by the synchronization signals in the synchronization signal subframe and/or the synchronization control channel subframe a fourth reference signal, or a first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal in a synchronization signal subframe that does not include the synchronization control channel, a second reference signal is loaded on a symbol of a synchronization control channel subframe including a synchronization signal that is not occupied by the synchronization control channel and is different from the synchronization control channel, and includes a synchronization signal subframe including a synchronization signal and a synchronization control channel or In the synchronization control channel subframe, the third reference signal is loaded on the symbol that is not occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel.
  • the quasi-work station judging module 4004 before the data loading module 4002 loads the data and demodulates the reference signal, the quasi-work station judging module 4004 first determines whether it is a QCL, and the sixth reference loading module 4005 and the seventh reference loading module 4006 according to the judgment result are different according to the judgment result. The method loads the demodulation reference signal, so that the loading of the demodulation reference signal is more flexible.
  • the transmitting end device may also be first determined whether the transmitting end device is a synchronous source transmitter, and then perform subsequent operations according to the judgment structure:
  • another embodiment of the transmitting device in the embodiment of the present invention includes:
  • the determining module 4101 is configured to determine, in the synchronization signal subframe of the device to the device D2D and/or the unoccupied resource in the synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, where the synchronization control channel subframe Including a synchronous control channel;
  • the data loading module 4102 is configured to load data on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe determined by the determining module 4101;
  • the sending module 4103 is configured to send the data loaded by the data loading module 4102 to the receiving end device;
  • the transmitting device also includes:
  • the quasi-work station judging module 4104 is configured to determine whether each of the synchronization sources in the group is a quasi-co-site QCL, and the QCL is used to indicate that the signals sent by the plurality of transmitting end devices in the discovery group are approximately from the same a signal of the station, where the synchronization source includes a transmitting end device and a receiving end device in the discovery group;
  • the sixth reference loading module 4105 is configured to: when determining that the synchronization sources in the discovery group are QCLs, do not load the demodulation reference signal on the synchronization signal subframe or the synchronization control channel subframe, or in the synchronization Loading a fifth reference signal at a location outside the bandwidth of the signal or synchronization control channel;
  • the seventh reference loading module 4106 is configured to: when determining that the synchronization sources in the transmission group are not QCL, superimposing and loading on the symbols occupied by the synchronization signals in the synchronization signal subframe and/or the synchronization control channel subframe
  • the fourth reference signal or in the synchronization signal sub-frame that does not include the synchronous control channel a first reference signal is loaded on a symbol occupied by the synchronization signal and different from the synchronization signal, and a symbol that is not occupied by the synchronization control channel and is different from the synchronization control channel in a synchronization control channel subframe that does not include the synchronization signal Uploading the second reference signal, in the synchronization signal subframe or the synchronization control channel subframe including both the synchronization signal and the synchronization control channel, not occupied by the synchronization signal and the synchronization control channel and different from the synchronization signal and the synchronization control channel Loading a third reference signal on the symbol of the location;
  • the transmitting device further includes:
  • a synchronization source determining module 4107 configured to determine whether the transmitting end device is a synchronization source transmitter
  • the first triggering module 4108 is configured to trigger the quasi-work station determining module 4104 when determining that the transmitting end device is not a synchronous source transmitter;
  • An eighth reference loading module 4109 configured to: when determining that the transmitting end device is a synchronous source transmitter, do not load a demodulation reference signal on the synchronization signal subframe or a synchronization control channel subframe, or in the synchronization signal or Loading a fifth reference signal at a position outside the bandwidth of the synchronization control channel, or superimposing a fourth reference signal on a symbol occupied by the synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe, or not including a first reference signal is loaded on a symbol of a synchronization signal sub-frame of the synchronization control channel that is not occupied by the synchronization signal and is different from the synchronization signal, and is not occupied by the synchronization control channel in a synchronization control channel subframe that does not include the synchronization signal.
  • a third reference signal is loaded on a symbol at a different location from the synchronization signal and the synchronization control channel.
  • the synchronization source determining module 4107 before the transmitting end device loads the data and demodulates the reference signal, the synchronization source determining module 4107 first determines whether the transmitting end device is a synchronous source transmitter, and loads the demodulation reference signal according to different manners according to the judgment result. This makes the loading of the demodulation reference signal more flexible.
  • the data loading module loads data on the un-occupied resources in the synchronization signal sub-frame and/or the synchronization control channel sub-frame.
  • the transmitting end device further includes:
  • a rate matching module configured to perform rate matching on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel.
  • the transmitting device loads the data of the cellular link on the unoccupied resource.
  • the base station loads the data on the unoccupied resource and then sends the data to the cellular terminal.
  • the base station is the transmitting end device in the embodiment of the present invention
  • the cellular terminal is the receiving end device in the embodiment of the present invention.
  • the structure of the base station that loads the data of the cellular link as the transmitting end device is similar to the structure of the D2D terminal that loads the data of the D2D link as the transmitting end device, and details are not described herein.
  • the cellular terminal loads data on the unoccupied resource and then sends the data to the base station.
  • the cellular terminal is the transmitting end device in the embodiment of the present invention
  • the base station is the receiving end device in the embodiment of the present invention.
  • the difference from the D2D terminal that loads the data of the D2D link as the transmitting device is that the cellular terminal that is the transmitting device does not know whether the subframe of the data to be transmitted is the synchronization signal subframe or the synchronization control channel subframe, and receives the
  • the base station of the end device knows, so the transmitting device needs to first receive an indication information sent by the base station to determine whether the currently transmitted subframe is a synchronization signal subframe or a synchronization control channel subframe, and therefore the transmitter device needs to include
  • the module for receiving the indication information is described below by taking several embodiments as an example:
  • another embodiment of the transmitting device in the embodiment of the present invention includes:
  • the transmitting end device When the data is cellular link data, the transmitting end device is a cellular link terminal, and the receiving end device is a base station, the transmitting end device includes:
  • the determining module 4201 is configured to determine, in the synchronization signal subframe of the device to the device D2D and/or the unoccupied resource in the synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, where the synchronization control channel subframe Including a synchronous control channel;
  • the data loading module 4202 is configured to load data on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe determined by the determining module 4201;
  • the sending module 4203 is configured to send the data loaded by the data loading module 4202 to the receiving end device;
  • the transmitting device also includes:
  • the receiving module 4204 is configured to receive first indication information that is sent by the base station, where the first indication information is used to indicate whether a subframe currently transmitted by the cellular terminal is a synchronization signal subframe and/or a synchronization control channel subframe.
  • the second triggering module 4205 is configured to trigger the determining module 4201 when the first indication information indicates that the currently transmitted subframe is a synchronization signal subframe and/or a synchronization control channel subframe.
  • the receiving module 4204 when the sending end device is a cellular terminal, the receiving module 4204 needs to first receive the first indication information sent by the base station, and when the first indication information determines that the currently transmitted subframe is a synchronization signal subframe and/or synchronization.
  • the second trigger module 4205 triggers the determining module 4201 so that unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe can be used to transmit data of the cellular link, which broadens the The scope of use of the occupied resources.
  • the transmitting end device loads the data of the D2D link in a time division manner on the unoccupied resources, and only needs to add the receiving module that receives the first indication information to the transmitting end device. Triggering the trigger module of the determining module, the transmitting device can load the data of the cellular link on the unoccupied resources, and the specific changes are as follows:
  • the transmitting device includes:
  • a determining module configured to determine a synchronization signal subframe of the device to the device D2D and/or an unoccupied resource in the synchronization control channel subframe, where the synchronization signal subframe includes a synchronization signal, where the synchronization control channel subframe includes Synchronous control channel;
  • a data loading module configured to load data on the unoccupied resources in the synchronization signal subframe and/or the synchronization control channel subframe determined by the determining module;
  • a sending module configured to send the data loaded by the data loading module to a receiving end device
  • the transmitting device further includes:
  • a first reference loading module configured to: when the synchronization signal sub-frame does not include a synchronization control channel, in the synchronization signal sub-frame, the symbol that is not occupied by the synchronization signal and is different from the synchronization signal is loaded on the symbol a reference signal;
  • a second reference loading module configured to: when the synchronization control channel subframe does not include a synchronization signal, a symbol that is not occupied by the synchronization control channel and is different from the synchronization control channel in the synchronization control channel subframe Loading a second reference signal;
  • a third reference loading module configured to: when the synchronization signal subframe or the synchronization control channel subframe includes a synchronization signal and a synchronization control channel, in the synchronization signal subframe or the synchronization control channel subframe, The third reference signal is loaded on the symbol that is occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel.
  • the transmitting device may further include:
  • a sequence generating module configured to generate, on a bandwidth of the data, a first reference signal, and a second a uniquely determined sequence of reference signals or third reference signals, or a uniquely determined sequence corresponding to the first reference signal, the second reference signal, or the third reference signal over the bandwidth over which the synchronization signal or synchronization control channel is located Part of, and generating a second portion of the sequence over the remaining bandwidth;
  • the transmitting device further includes:
  • a receiving module configured to receive first indication information that is sent by the base station, where the first indication information is used to indicate whether a subframe currently transmitted by the cellular terminal is a synchronization signal subframe and/or a synchronization control channel subframe;
  • the second triggering module is configured to trigger the determining module when the first indication information indicates that the currently transmitted subframe is a synchronization signal subframe and/or a synchronization control channel subframe.
  • the transmitting device that loads the data of the D2D link in the above embodiments can be used to load the data of the cellular link.
  • the receiving module 4204 and the second triggering module 4205 are added to each of the transmitting end devices that load the data of the D2D link on the unoccupied resource, the data can be applied to load the cellular link. I won't go into details here.
  • an embodiment of a receiving device in the embodiment of the present invention includes:
  • the first receiving module 4301 is configured to receive data that is sent by the transmitting end device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, where the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control
  • the channel subframe is a synchronous control channel subframe of D2D;
  • the parsing module 4302 is configured to parse the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the first receiving module 4301 receives the data that is sent by the transmitting device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, and the parsing module 4302 parses the synchronization signal subframe and/or the synchronization.
  • the data in the control channel subframe utilizes resource transmission data of the synchronization favorite subframe and/or the synchronization control channel subframe, thereby improving resource utilization.
  • the receiving device will parse the data differently:
  • the transmitting device does not load a separate demodulation reference signal for the data.
  • the parsing module 4302 may be specifically configured to use a synchronization signal as a demodulation reference signal of the data. And parsing the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the parsing module 4302 uses the synchronization signal as a demodulation reference signal of the loaded data to accurately parse the loaded data.
  • the transmitting device loads the demodulation reference signal in a time division manner.
  • another embodiment of the receiving device in the embodiment of the present invention includes:
  • the first receiving module 4401 is configured to receive data that is sent by the transmitting end device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, where the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control
  • the channel subframe is a synchronous control channel subframe of D2D;
  • the parsing module 4402 is configured to parse the data in the synchronization signal subframe and/or the synchronization control channel subframe;
  • the first receiving module 4401 specifically includes:
  • a first receiving unit 44011 configured to receive data and a first reference signal that are loaded on a synchronization signal subframe that does not include a synchronization control channel, where the first reference signal is loaded in the synchronization signal subframe that does not include a synchronization control channel a symbol that is not occupied by the synchronization signal and is different from the synchronization signal;
  • a second receiving unit 44012 configured to receive data and a second reference signal that are loaded on a synchronization control channel subframe that does not include a synchronization signal, where the second reference signal is recorded in the synchronization control channel subframe and is not synchronously controlled.
  • a third receiving unit 44013 configured to receive data and a third reference signal that are loaded on a synchronization signal subframe or a synchronization control channel subframe that includes a synchronization signal and a synchronization control channel, where the third reference signal is loaded in the synchronization signal a symbol in a subframe or a synchronization control channel subframe that is not occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel;
  • the parsing module 4402 specifically includes:
  • the first parsing unit 44021 is configured to parse the synchronization signal that does not include the synchronization control channel by using the first reference signal as a demodulation reference signal of the data in a synchronization signal subframe that does not include a synchronization control channel.
  • the second parsing unit 44022 is configured to parse the synchronous control channel that does not include the synchronization signal by using the second reference signal as a demodulation reference signal of the data in a synchronization control channel subframe that does not include a synchronization signal.
  • a third parsing unit 44023 for synchronizing signals including a synchronization signal and a synchronization control channel And using the third reference signal as a demodulation reference signal of the data on the frame or the synchronization control channel subframe, parsing out the synchronization signal subframe or the synchronization control channel subframe included in the synchronization signal and the synchronization control channel The data.
  • the first parsing unit 44021, the second parsing unit 44022, and the third parsing unit 44023 load the first reference signal on the synchronization signal subframe or the synchronization control channel subframe by using the time-division manner by the receiving end device.
  • the second reference signal or the third reference signal is used as a demodulation reference signal of the loaded data, and the data loaded in the synchronization signal subframe or the synchronization control channel subframe is accurately parsed.
  • another embodiment of the receiving device in the embodiment of the present invention includes:
  • the first receiving module 4301 is configured to receive data that is sent by the transmitting end device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, where the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control
  • the channel subframe is a synchronous control channel subframe of D2D;
  • the parsing module 4302 is configured to parse the data in the synchronization signal subframe and/or the synchronization control channel subframe;
  • the first receiving module 4301 is specifically configured to receive data loaded in a synchronization signal subframe and/or a synchronization control channel subframe and a fourth reference signal, where the fourth reference signal is superimposed and loaded in the synchronization signal. Occupied symbol;
  • the parsing module 4302 is specifically configured to parse the data in the synchronization signal subframe and/or the synchronization control channel subframe by using the fourth reference signal as a demodulation reference signal of the data.
  • the parsing module 4302 will use the fourth reference signal loaded on the synchronization signal sub-frame or the synchronization control channel sub-frame in a superimposed manner as a demodulation reference signal of the loaded data, and accurately parse the loading in synchronization.
  • the transmitting device loads the demodulation reference signal at a position outside the synchronization signal or the synchronization control channel bandwidth:
  • another embodiment of the receiving device in the embodiment of the present invention includes:
  • the first receiving module 4501 is configured to receive data that is sent by the transmitting end device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, where the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control
  • the channel subframe is a synchronous control channel subframe of D2D;
  • the parsing module 4502 is configured to parse the data in the synchronization signal subframe and/or the synchronization control channel subframe;
  • the first receiving module 4501 is specifically configured to receive data and a fifth reference signal that are loaded in the synchronization signal subframe and/or the synchronization control channel subframe, where the fifth reference signal is loaded in the synchronization signal. a position outside the bandwidth of the synchronization signal or the synchronization control channel in the subframe and/or the synchronization control channel subframe;
  • the parsing module 4502 specifically includes:
  • a fourth parsing unit 45021 configured to use the third reference signal and the synchronization signal as a demodulation reference signal of the data in a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal, and parse the Included in the synchronization signal subframe of the synchronization signal or the data in the synchronization control channel subframe;
  • the fifth parsing unit 45022 is configured to use the third reference signal as a demodulation reference signal of data outside the bandwidth of the synchronization control channel in the synchronization control channel subframe that does not include the synchronization signal, and use the synchronization control channel.
  • the demodulation reference signal is used as a demodulation reference signal for data within the bandwidth of the synchronization control channel, and the data in the synchronization control channel subframe not including the synchronization signal is parsed.
  • the fourth parsing unit 45021 and the fifth parsing unit 45022 perform the fifth reference signal that is loaded outside the bandwidth of the synchronization signal or the synchronization control channel. Analyze and accurately obtain data that is loaded outside the bandwidth of the synchronization signal or the synchronization control channel.
  • the receiving end device includes a module that receives the indication signaling sent by the transmitting end device to indicate whether the respective synchronization sources in the group are QCL:
  • another embodiment of the receiving device in the embodiment of the present invention includes:
  • the first receiving module 4601 is configured to receive data that is sent by the transmitting end device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, where the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control The channel subframe is a synchronous control channel subframe of D2D;
  • the parsing module 4602 is configured to parse the data in the synchronization signal subframe and/or the synchronization control channel subframe;
  • the transmitting device further includes:
  • the second receiving module 4603 is configured to receive the indication signaling sent by the sending end device, where the indication signaling is used to indicate whether each synchronization source in the group is a QCL, and the QCL is used to represent the discovery group.
  • the signals sent by the multiple transmitting end devices are approximately signals from the same station, and the synchronization source includes the transmitting end device and the receiving end device in the discovery group;
  • the first receiving module 4601 specifically includes:
  • the fourth receiving unit 46011 is configured to: when the indication signaling indicates that the synchronization sources in the discovery group are QCLs, receive data loaded in the synchronization signal subframe and/or the synchronization control channel subframe, or Receiving data loaded in a synchronization signal subframe and/or a synchronization control channel subframe and a fifth reference signal, the fifth reference signal being loaded in the synchronization signal subframe and/or the synchronization control channel subframe, or Synchronizing the position of the control channel outside the bandwidth;
  • the fifth receiving unit 46012 is configured to: when the indication signaling indicates that the synchronization sources in the discovery group are not QCL, receive data and a first reference that are loaded on the synchronization signal subframe that does not include the synchronization control channel. a signal, the first reference signal is loaded on a symbol of a synchronization signal sub-frame that does not include a synchronization control channel that is not occupied by a synchronization signal and is different from a synchronization signal, and is received by a synchronization control channel that does not include a synchronization signal.
  • the parsing module 4602 specifically includes:
  • the sixth parsing module 46021 is configured to parse the synchronization signal subframe by using a synchronization signal as a demodulation reference signal of the data when the indication signaling indicates that the synchronization sources in the discovery group are QCLs And/or synchronizing the data in the control channel subframe, or in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal, using the third reference signal and the synchronization signal as solutions of the data Tuning the reference signal, parsing the data in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal, in a synchronization control channel subframe not including the synchronization signal, Using the third reference signal as a demodulation reference signal for data outside the bandwidth of the synchronization control channel, using a demodulation reference signal dedicated to the synchronization control channel as a demodulation reference signal for data in the bandwidth of the synchronization control channel, Denoting the data in a synchronization control channel subframe having a synchron
  • the seventh parsing module 46022 is configured to: when the indication signaling indicates that the synchronization sources in the discovery group are not QCL, use the first reference signal in a synchronization signal subframe that does not include the synchronization control channel.
  • the demodulation reference signal of the data parsing the data in the synchronization signal subframe that does not include the synchronization control channel, and using the second reference signal in a synchronization control channel subframe that does not include the synchronization signal
  • the demodulation reference signal of the data parsing the data in the synchronization control channel subframe that does not include the synchronization signal, on the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel
  • the third reference signal as a demodulation reference signal of the data, parsing the data in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel, or using the The fourth reference signal is used as a demodulation reference
  • the receiving end device demodulates the loaded data in different manners according to the indication signaling received by the second receiving module 4703, and can more accurately parse the synchronization signal subframe and/or the synchronization control channel.
  • the data in the sub-frame is the indication signaling received by the second receiving module 4703, and can more accurately parse the synchronization signal subframe and/or the synchronization control channel.
  • the data in the sub-frame is the indication signaling received by the second receiving module 4703, and can more accurately parse the synchronization signal subframe and/or the synchronization control channel.
  • another embodiment of the receiving device in the embodiment of the present invention includes:
  • the transmitting end device When the data is cellular link data, the transmitting end device is a base station, and the receiving end device is a cellular link terminal, the transmitting end device includes:
  • the first receiving module 4701 is configured to receive data that is sent by the transmitting device and is loaded in the synchronization signal subframe and/or the synchronization control channel subframe, where the synchronization signal subframe is a D2D synchronization signal subframe, and the synchronization control
  • the channel subframe is a synchronous control channel subframe of D2D;
  • the parsing module 4702 is configured to parse the data in the synchronization signal subframe and/or the synchronization control channel subframe;
  • the transmitting device further includes:
  • the third receiving module 4703 is configured to receive second indication information that is sent by the base station, where the second indication information is used to indicate whether a subframe currently received by the cellular link terminal is a synchronization signal subframe and/or a synchronization control.
  • the third triggering module 4704 is configured to trigger the first receiving module 4701 when the second indication information indicates that the currently received subframe is a synchronization signal and/or a synchronization control channel subframe subframe.
  • the third receiving module 4703 when the receiving end device is a cellular link terminal and the transmitting end device is a base station, the third receiving module 4703 first receives the second indication information sent by the sending end device, and when the second indication information indicates the current receiving When the subframe is a synchronization signal and/or a synchronization control channel subframe subframe, the third trigger module 4704 triggers the first receiving module 4701 such that the unseen resources in the synchronization signal subframe and/or the synchronization control channel subframe It can be used to transmit data on cellular links, broadening the range of use of unoccupied resources.
  • the receiving device when the receiving device is a cellular link terminal, the foregoing embodiment of the receiving device that receives the data of the D2D link can be applied only by adding the third receiving module 4703 and the third trigger module 4704. In the corresponding scenario of the cellular link, no further details are provided here.
  • a schematic structural diagram of a network device 4800 in the embodiment of the present invention which may represent a receiving end device or a sending end device.
  • An embodiment of the network device includes:
  • the input device 4801, the output device 4802, the processor 4803, and the memory 4804 (wherein the number of the processors 4803 in the network device 4800 may be one or more, and one processor 4803 in FIG. 48 is taken as an example).
  • the input device 4801, the output device 4802, the processor 4803, and the memory 4804 may be connected by a bus or other means, wherein the bus connection is taken as an example in FIG.
  • the sender device in the embodiment of the present invention is described with reference to FIG. 48:
  • the processor 4803 is configured to perform the following operations by calling an operation instruction stored in the memory 4804:
  • a synchronization signal subframe of the device D2D and/or an unoccupied resource in the synchronization control channel subframe where the synchronization signal subframe includes a synchronization signal, and the synchronization control channel subframe includes a synchronization control channel;
  • the processor 4803 is further configured to perform the following operations:
  • the first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal;
  • a second reference signal is loaded on a symbol that is not occupied by the synchronization control channel and is different from the synchronization control channel;
  • the synchronization signal subframe or the synchronization control channel subframe includes both the synchronization signal and the synchronization control channel
  • the synchronization signal and the synchronization control channel are occupied. And loading a third reference signal on a symbol different from the synchronization signal and the synchronization control channel.
  • the processor 4803 is further configured to perform the following operations:
  • the processor 4803 is further configured to perform the following operations:
  • the processor 4803 is further configured to perform the following operations:
  • the processor 4803 is specifically configured to perform the following operations:
  • the processor 4803 is further configured to perform the following operations:
  • the respective synchronization sources in the group are quasi-co-located QCLs, wherein the QCL is used to indicate that the signals sent by the multiple transmitting end devices in the discovery group can be approximated as signals from the same station, and the synchronization source includes The transmitting end device and the receiving end device in the discovery group;
  • the demodulation reference signal is not loaded on the synchronization signal subframe or the synchronization control channel subframe, or is outside the bandwidth of the synchronization signal or the synchronization control channel. Loading a fifth reference signal at the location;
  • the fourth reference signal is superimposed and loaded on the symbol occupied by the synchronization signal in the synchronization signal subframe and/or the synchronization control channel subframe, or
  • the first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal in the synchronization signal subframe including the synchronization control channel, and is not occupied by the synchronization control channel in the synchronization control channel subframe that does not include the synchronization signal.
  • the second reference signal on the symbol different from the synchronous control channel, and in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel, the synchronization signal and the synchronization control channel are occupied. And loading a third reference signal on a symbol different from the synchronization signal and the synchronization control channel;
  • the processor 4803 is further configured to perform the following operations:
  • the demodulation reference signal is not loaded on the synchronization signal subframe or the synchronization control channel subframe, or is located outside the bandwidth of the synchronization signal or the synchronization control channel.
  • the first reference signal is loaded on a symbol that is not occupied by the synchronization signal and is different from the synchronization signal, and is not occupied by the synchronization control channel and is different from the synchronous control channel in the synchronization control channel subframe that does not include the synchronization signal.
  • the second reference signal is loaded on the symbol, and is not occupied by the synchronization signal and the synchronization control channel and is synchronized with the synchronization signal and the synchronization control channel in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel.
  • Different bits The third reference signal is loaded on the set symbol.
  • the processor 4803 is further configured to perform the following operations:
  • first indication information is used to indicate whether a subframe currently transmitted by the cellular terminal is a synchronization signal subframe and/or a synchronization control channel subframe;
  • the determining device When the first indication information indicates that the currently transmitted subframe is a synchronization signal subframe and/or a synchronization control channel subframe, triggering the determining device to the synchronization signal subframe and/or the synchronization control channel subframe of the device D2D The operation of unoccupied resources.
  • the processor 4803 is further configured to perform the following operations:
  • Rate matching is performed on resources that are not occupied in the synchronization signal subframe and/or the synchronization control channel.
  • the receiving end device in the embodiment of the present invention is described in conjunction with FIG. 48:
  • the processor 4803 is configured to perform the following operations by calling an operation instruction stored in the memory 4804:
  • the synchronization signal subframe is a D2D synchronization signal subframe
  • the synchronization control channel subframe is a D2D synchronization control.
  • the processor 4803 is specifically configured to perform the following operations:
  • the synchronization signal is used as a demodulation reference signal of the data, and the data in the synchronization signal subframe and/or the synchronization control channel subframe is parsed.
  • the processor 4803 is specifically configured to perform the following operations:
  • a third reference signal loaded on a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal and a synchronization control channel, the third reference signal being loaded in the synchronization signal subframe or the synchronization control channel subframe a symbol that is not occupied by the synchronization signal and the synchronization control channel and is different from the synchronization signal and the synchronization control channel;
  • the third reference signal as a demodulation reference signal of the data on the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel, parsing the synchronization signal and the synchronization control channel The data in the sync signal subframe or the synchronization control channel subframe.
  • the processor 4803 is specifically configured to perform the following operations:
  • the fourth reference signal as a demodulation reference signal of the data, parsing the data in the synchronization signal subframe and/or the synchronization control channel subframe.
  • the processor 4803 is specifically configured to perform the following operations:
  • the third reference signal and the synchronization signal are used as demodulation reference signals of the data, and the synchronization signal including the synchronization signal is parsed
  • the third reference signal is used as a demodulation reference signal of data outside the bandwidth of the synchronization control channel, and a demodulation reference signal dedicated to the synchronization control channel is used as the synchronization control channel.
  • Demodulation reference signal of data within the bandwidth, parsing out the packet The data in the synchronization control channel subframe of the synchronization signal is included.
  • the processor 4803 is further configured to perform the following operations:
  • the indication signaling is used to indicate whether each synchronization source in the group is a QCL, and the QCL is used to indicate that multiple sending end devices in the discovery group send
  • the signal is approximately a signal from the same site, and the synchronization source includes a transmitting device and a receiving device in the discovery group;
  • the processor 4803 is specifically configured to perform the following operations:
  • the indication signaling indicates that the respective synchronization sources in the discovery group are QCLs, receiving data loaded in the synchronization signal subframe and/or the synchronization control channel subframe, or receiving the synchronization signal subframe and And synchronizing data in the control channel subframe and a fifth reference signal, the fifth reference signal being loaded in a position outside the bandwidth of the synchronization signal or the synchronization control channel in the synchronization signal subframe and/or the synchronization control channel subframe on;
  • the first reference signal Loading data and a second reference loaded on a synchronization control channel subframe not including the synchronization signal on a symbol of the synchronization signal subframe not including the synchronization control channel that is not occupied by the synchronization signal and different from the synchronization signal
  • the second reference signal is recorded on a symbol of the synchronization control channel subframe that is not occupied by the synchronization control channel and is different from the synchronization control channel, and receives the synchronization signal subframe that is included in the synchronization signal and the synchronization control channel.
  • the third reference signal being loaded in the synchronization signal subframe or the synchronization control channel subframe is not occupied by the synchronization signal and the synchronization control channel and
  • the synchronization signal and the synchronization control channel are at different positions of the symbol, or the reception is loaded in the synchronization signal subframe and/or the synchronization control channel.
  • Data in the subframe and a fourth reference signal, the fourth reference signal is superimposed and loaded on the symbol occupied by the synchronization signal;
  • the synchronization signal is used as a demodulation reference signal of the data, and the synchronization signal subframe and/or the synchronization control channel subframe are parsed out.
  • the demodulation reference signal dedicated to the synchronization control channel is used as the synchronization reference signal in the synchronization control channel subframe not including the synchronization signal. Demodulating a reference signal of data within a bandwidth of the control channel, parsing the data in the synchronization control channel subframe not including the synchronization signal;
  • the first reference signal is used as a demodulation reference of the data.
  • Signaling, parsing the data in the synchronization signal subframe that does not include the synchronization control channel, and using the second reference signal as a demodulation reference of the data in a synchronization control channel subframe that does not include a synchronization signal Transmitting, by the signal, the data in the synchronization control channel subframe that does not include the synchronization signal, using the third reference signal on a synchronization signal subframe or a synchronization control channel subframe including a synchronization signal and a synchronization control channel
  • the demodulation reference signal of the data parsing the data in the synchronization signal subframe or the synchronization control channel subframe including the synchronization signal and the synchronization control channel, or using the fourth reference signal as the The demodulation reference signal of the data parses out the
  • the processor 4803 is further configured to perform the following operations:
  • Second indication information is used to indicate whether a subframe currently received by the cellular link terminal is a synchronization signal subframe and/or a synchronization control channel subframe;
  • the second indication information indicates that the currently received subframe is a synchronization signal and/or a synchronization control channel subframe subframe
  • triggering the loading of the receiving transmitter device to be transmitted in the synchronization signal subframe and/or the synchronization control channel The operation of the data in the frame.
  • 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. It can be 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.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • 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. .

Abstract

L'invention concerne un procédé d'envoi de signal, un procédé de réception de signal et un dispositif associé, qui servent à utiliser une ressource libre efficacement dans une sous-trame de signal synchrone et/ou une sous-trame de canal de commande synchrone afin d'augmenter le taux d'utilisation de ressource par un système. Le procédé selon des modes de réalisation de la présente invention consiste en : un dispositif terminal émetteur déterminant d'abord une ressource libre dans une sous-trame de signal synchrone D2D et/ou une sous-trame de canal de commande synchrone et charge des données sur la ressource libre dans la sous-trame de signal synchrone et/ou la sous-trame de canal de commande synchrone, et ensuite, le dispositif terminal émetteur envoie les données chargées dans la sous-trame de signal synchrone et/ou la sous-trame de canal de commande synchrone à un dispositif terminal récepteur.
PCT/CN2014/087407 2014-09-25 2014-09-25 Procédé d'envoi de signal, procédé de réception de signal et dispositif associé WO2016045037A1 (fr)

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CN201480013811.3A CN106031269B (zh) 2014-09-25 2014-09-25 信号发送方法，信号接收方法及其相关设备
PCT/CN2014/087407 WO2016045037A1 (fr) 2014-09-25 2014-09-25 Procédé d'envoi de signal, procédé de réception de signal et dispositif associé

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CN109391424B (zh) * 2017-08-11 2021-07-20 华为技术有限公司 一种数据发送方法、设备及系统
CN109474370B (zh) * 2017-09-07 2021-11-02 国广融合（北京）传媒科技发展有限公司 数字广播系统的管道数据传输方法和设备
CN110167134A (zh) * 2018-02-13 2019-08-23 北京三星通信技术研究有限公司 同步信号发送和接收的方法及设备
CN111147405B (zh) * 2018-11-02 2022-03-29 大唐移动通信设备有限公司 一种信号的发送方法及终端

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