WO2018188475A1 - 数据发送方法、接收方法和相关设备 - Google Patents

数据发送方法、接收方法和相关设备 Download PDF

Info

Publication number
WO2018188475A1
WO2018188475A1 PCT/CN2018/080503 CN2018080503W WO2018188475A1 WO 2018188475 A1 WO2018188475 A1 WO 2018188475A1 CN 2018080503 W CN2018080503 W CN 2018080503W WO 2018188475 A1 WO2018188475 A1 WO 2018188475A1
Authority
WO
WIPO (PCT)
Prior art keywords
data
subset
sequence
type
processing
Prior art date
Application number
PCT/CN2018/080503
Other languages
English (en)
French (fr)
Inventor
管鹏
樊波
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18783741.4A priority Critical patent/EP3576478B1/en
Priority to BR112019021530-1A priority patent/BR112019021530A2/pt
Publication of WO2018188475A1 publication Critical patent/WO2018188475A1/zh
Priority to US16/598,912 priority patent/US11374687B2/en

Links

Images

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/53Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • H04L1/1896ARQ related signaling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0061Error detection codes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0056Systems characterized by the type of code used
    • H04L1/0067Rate matching
    • H04L1/0068Rate matching by puncturing
    • H04L1/0069Puncturing patterns
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867Arrangements specially adapted for the transmitter end
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes
    • H04L27/2601Multicarrier modulation systems
    • H04L27/2647Arrangements specific to the receiver only
    • H04L27/2649Demodulators
    • H04L27/265Fourier transform demodulators, e.g. fast Fourier transform [FFT] or discrete Fourier transform [DFT] demodulators
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0466Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/535Allocation or scheduling criteria for wireless resources based on resource usage policies
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/50Allocation or scheduling criteria for wireless resources
    • H04W72/56Allocation or scheduling criteria for wireless resources based on priority criteria
    • H04W72/566Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient
    • H04W72/569Allocation or scheduling criteria for wireless resources based on priority criteria of the information or information source or recipient of the traffic information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W80/00Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02Data link layer protocols

Definitions

  • the present invention relates to the field of communications, and in particular, to a data sending method, a receiving method, and related devices.
  • eMBB enhanced Mobile BroadBand, enhanced mobile broadband, eMBB for short
  • URLLC Ultra-Reliable and Low Latency Communication
  • Data can be transmitted in the same scheduling time. Due to the low latency and high reliability of the URLLC data, it usually has a higher priority.
  • the base station During the process of the base station preparing to send eMBB data, if the new URLLC data arrives, the base station will play on the time-frequency resources of the eMBB data. The hole allocates time-frequency resources originally belonging to the eMBB data to the received URLLC data. Referring to FIG. 1a and FIG. 1b, FIG.
  • FIG. 1a shows a schematic diagram of time-frequency resources allocated to eMBB data on time slot n
  • FIG. 1b shows a schematic diagram of puncturing URLLC data on time-frequency resources of eMBB data on time slot n.
  • the time-frequency resources of the eMBB data are punctured by the URLLC data
  • the eMBB data sent by the base station on the time slot n is incomplete.
  • the base station needs to retransmit the eMBB data, how to retransmit.
  • eMBB data is an urgent problem to be solved.
  • the technical problem to be solved by the embodiments of the present invention is to provide a data sending method, a receiving method, and a related device, which solve the problem of retransmitting the punctured data.
  • the present application provides a data sending method, including: in a first scheduling time, a first type of data of a network device is punctured by a second type of data, where the network device may be a base station, and the first type of data And the second type of data is data of two different service types, and the second type of data has higher priority than the first priority data, for example, the first type of data is eMBB data, and the second type of data is URLLC data.
  • Punching indicates that the time-frequency resource of the first type of data is preempted by the second type of data
  • the network device determines a first subset of data of the first type of data punctured by the second type of data, and determining that the first subset of data is at the first
  • the punch location information in the type data, the data of the first type data not punctured by the second type data is the second data subset, and the first data subset and the second data subset constitute the first type data.
  • the network device transmits the second subset of data and the second type of data.
  • the second scheduling time the network device transmits the first data subset, the punching location information, and the puncturing indication information, where the puncturing indication information indicates that the first data subset transmitted by the second scheduling time is a puncturing triggered retransmission data. .
  • the network device sets the first scheduling time and the second scheduling time to the same HARQ process ID, indicating that both the first scheduling time and the second scheduling time are used to transmit the first type of data, and the HARQ process number can be carried in the DCI. in.
  • the network device saves the punctured first data subset and the first data subset in the first type of data in the first type of data user equipment if the first type of data is punctured Punching the location information, retransmitting the first data subset at the second scheduling time, so that the network device can perform the retransmission operation without waiting for the feedback from the user equipment, reducing the delay of retransmission, and the network device is in the second scheduling.
  • the network device In time, only the first data subset that is punctured needs to be retransmitted, and the entire first type of data does not need to be retransmitted, which reduces the amount of retransmitted data and the consumption of transmission resources.
  • the first data subset, the second data subset, and the first type of data are scrambled processed scrambling sequences.
  • the first subset of data is one or more consecutive bit sequences in the first type of data.
  • the first data subset and the first type of data are modulation symbol sequences obtained after the modulation process.
  • the puncturing position information represents a starting position of the first subset of data in the first type of data and a length of the first subset of data.
  • the puncturing position information in a case where the first data subset is a continuous bit sequence in the first type data, includes a sequence number of the first bit of the bit sequence in the first type data and a length of the bit sequence
  • the puncturing position information in the case where the first subset of data is a plurality of consecutive bit sequences in the first type of data, the puncturing position information includes a sequence number of the first bit of each bit sequence in the first type of data and a sequence of each bit sequence length.
  • the punching position information indicates:
  • transmitting the first subset of data includes:
  • the code block to which the CRC code is added is subjected to channel coding processing to obtain a channel coding sequence
  • the OFDM (Orthogonal Frequency Division Multiplexing) symbol is obtained by performing a resource mapping and an IFFT (Inverse Fast Fourier Transform, IFFT) processing.
  • IFFT Inverse Fast Fourier Transform
  • transmitting the first subset of data includes:
  • the punctured location information is transmitted to the user equipment by using downlink control information DCI or a physical downlink shared channel in the physical downlink control channel.
  • the puncturing indication information is sent to the user equipment by DCI (Downlink Control Information, DCI for short) or MAC-CE in the physical downlink control channel.
  • DCI Downlink Control Information, DCI for short
  • MAC-CE MAC-CE
  • the present application provides a method for receiving eMBB data.
  • a user equipment receives a second subset of data at a first scheduling time, and saves a second subset of data, where the user equipment receives the second scheduling time.
  • a data subset, location information, and puncturing indication information a puncturing position information indicating a position of the first data subset in the first type of data
  • the puncturing indication information indicating that the first data subset is a puncturing triggered retransmission data .
  • the user equipment further receives the second type of data at the first scheduling time, where the second type of data is data that is punctured on the time-frequency resource block of the first type of data; the first type of data and the second type of data are For the data of different service types, the second type of data has higher priority than the first type of data, for example, the first type of data is eMBB data, and the second type of data is URLLC data.
  • the user equipment receives the puncturing indication information on the second scheduling time, it is determined that the first data subset is the puncturing triggered retransmission data.
  • all the scheduling times are set to the same HARQ process ID, and the user equipment can obtain the current HRAQ process ID according to the DCI received at the second scheduling time, and then determine and current in the previous scheduling time.
  • the first scheduling time of the HARQ process ID is the same, the second data subset saved in the first scheduling time is obtained, and the first data subset and the second data subset are combined according to the punching location information to obtain the original data.
  • the user equipment saves the second data subset when receiving the second data subset on the first scheduling time, and the user equipment receives the first data subset in the second scheduling time, according to
  • the hole indication information determines that the first data subset is the retransmission data triggered by the puncturing, and the user equipment combines the first data subset and the second data subset according to the location information to obtain the complete first type data, and the network device does not need to wait for the user equipment.
  • the feedback can retransmit the data to the user equipment, reducing the delay of retransmission, and the user equipment receives the first data subset of the retransmitted data belonging to a part of the first type of data, and does not need to receive the entire first type of data, which is reduced.
  • the amount of data received to retransmit data can be used to the user equipment.
  • the first data subset, the second data subset, and the first type of data are demodulated and processed scrambling sequences.
  • the first data subset, the second data subset, and the first type data are fast Fourier transform FFT processed modulation symbol sequences.
  • the puncturing position information indicates a starting position of the first subset of data in the first type of data, and a length of the first subset of data.
  • the punching position information indicates:
  • mapping rule corresponds to a correspondence between the first mapping pattern and the second mapping pattern.
  • receiving the first subset of data includes:
  • the CRC code in the first parity sequence is removed to obtain a first subset of data.
  • the method further includes:
  • Whether the information bit sequence in the check bit sequence is correct is determined according to the CRC code in the second check bit sequence.
  • the method further includes:
  • the CRC processing is performed based on the CRC code in the check bit sequence.
  • the punctured location information is received by using downlink control information DCI or a physical downlink shared channel in the physical downlink control channel.
  • the puncturing indication information is received by using a DCI or a MAC-CE in the physical downlink control channel.
  • the application provides a data sending apparatus, including:
  • a saving unit configured to: in a first scheduling time, save the first data subset occupied by the second type data in the first type data and the first data in a case where the first type data is punctured by the second type data Punch location information of a subset of data in the first type of data;
  • a transmission unit configured to transmit, by the second scheduling time, the first data subset, the punching location information, and the puncturing indication information; wherein the puncturing indication information is used to indicate that the first data subset is The retransmission data triggered by the punch.
  • the transmission unit is configured to:
  • the transmission unit is configured to:
  • the present application provides an apparatus comprising: a processor and a memory, wherein the memory stores instructions that, when operating the apparatus, cause the processor to perform the following steps:
  • a first scheduling time in a case where the first type of data is punctured by the second type of data, instructing the memory to save the first data subset of the first type of data occupied by the second type of data and the first Punch location information of the subset of data in the first type of data;
  • the punching indication information is used to indicate that the first data subset is a punching triggered retransmission data.
  • the processor is further configured to:
  • the radio frequency signal is output.
  • the processor is further configured to:
  • the radio frequency signal is output.
  • the present application discloses a data receiving apparatus, including:
  • a saving unit configured to receive and save the second subset of data, for the first scheduling time
  • the receiving unit is configured to receive the first data subset, the punching location information, and the puncturing indication information, where the puncturing indication information is used to indicate that the first data subset is a puncturing trigger Retransmitting data, the punch location information indicating a location of the first subset of data in the first type of data;
  • a merging unit configured to combine the first data subset and the second data subset according to the puncturing location information to obtain the first type of data.
  • the receiving unit is configured to:
  • the method further includes:
  • a descrambling unit configured to perform descrambling processing on the first type of data to obtain a second redundancy version sequence
  • a rate matching unit configured to perform rate de-matching on the second redundancy version sequence to obtain a second channel coding sequence
  • a decoding unit configured to perform channel decoding processing on the second channel coding sequence to obtain a second parity bit sequence
  • a CRC unit configured to determine, according to the CRC code in the second check bit sequence, whether the information bit sequence in the check bit sequence is correct.
  • the method further includes:
  • a demodulation unit configured to perform demodulation processing on the first type of data to obtain a modulation symbol sequence
  • a descrambling unit configured to perform descrambling processing on the modulation symbol sequence to obtain a redundancy version sequence
  • a rate matching unit configured to de-rate match the redundancy version sequence to obtain a channel coding sequence
  • a decoding unit configured to perform channel decoding processing on the channel coding sequence to obtain a check bit sequence
  • a CRC unit configured to perform CRC processing according to the CRC code in the check bit sequence.
  • the present application discloses an apparatus comprising a processor and a memory, the memory storing instructions for causing the processor to perform the following steps when the apparatus is operated:
  • the puncturing position information indicates a location of the first subset of data in the first type of data
  • the memory is configured to save the second subset of data at the first scheduling time.
  • the processor is further configured to perform FFT processing on the OFDM symbol to obtain a modulation symbol sequence
  • the processor is further configured to:
  • the processor is further configured to:
  • the CRC processing is performed based on the CRC code in the check bit sequence.
  • the present application discloses a computer readable storage medium comprising instructions which, when run on a computer, cause the computer to perform the data transmitting method as described in the first aspect.
  • the present application discloses a computer readable storage medium comprising instructions which, when run on a computer, cause the computer to perform the data receiving method as described in the second aspect.
  • Figure 1a is a mapping diagram of a control channel and eMBB data on a time-frequency resource block of slot n;
  • FIG. 1b is a schematic diagram of puncturing URLLC data on time-frequency resources of eMBB data
  • 2a is a network architecture diagram of a communication system according to an embodiment of the present invention.
  • FIG. 2b is a flowchart of processing a data at a physical layer of a base station and a user equipment according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a data sending method according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart of a data receiving method according to an embodiment of the present invention.
  • FIG. 5 is another schematic flowchart of a data sending method according to an embodiment of the present disclosure.
  • FIG. 6 is another schematic flowchart of a data receiving method according to an embodiment of the present invention.
  • FIG. 7a is a schematic diagram of data puncturing according to an embodiment of the present invention.
  • FIG. 7b is another schematic diagram of data puncturing according to an embodiment of the present invention.
  • FIG. 8 is another schematic flowchart of a data sending method according to an embodiment of the present disclosure.
  • FIG. 9 is another schematic flowchart of a data receiving method according to an embodiment of the present disclosure.
  • FIG. 10 is a mapping diagram of first eMBB data on a time-frequency resource block according to an embodiment of the present invention
  • FIG. 11 is a schematic structural diagram of a data sending apparatus according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a data receiving apparatus according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 2a is a schematic structural diagram of a communication system according to an embodiment of the present invention, where the communication system includes a base station and a user equipment.
  • the communication system may be a Global System for Mobile Communication (GSM), a Code Division Multiple Access (CDMA) system, or a Wideband Code Division Multiple Access (WCDMA) system.
  • GSM Global System for Mobile Communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • WiMAX Worldwide Interoperability for Microwave Access
  • LTE long term evolution
  • 5G communication system such as New Radio (NR) system
  • NR New Radio
  • multi-communication technology integrated communication system For example, a communication system in which LTE technology and NR technology are integrated, or a subsequent evolution communication system.
  • the base station can communicate with the user equipment through the wireless air interface, and the base station can be a BTS (Base Transceiver Station, BTS for short) in a GSM system or a CDMA (Code Division Multiple Access, CDMA) system. It can also be an NB (Node B, Node B, NB for short) in the WCDMA system, or an eNB (evolutional Node B, eNB for short) in the LTE system, or even a base station in the 5G system. And base stations in future communication systems.
  • the base station is mainly responsible for radio resource management, quality of service (QoS), data compression, and encryption on the air interface side.
  • QoS quality of service
  • the base station is mainly responsible for forwarding control plane signaling and user plane service data to the core network.
  • the user equipment is a device that accesses the network side through the base station, and the user equipment includes but is not limited to a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, and a Wireless Local Loop (WLL) station.
  • a cellular phone a cordless phone
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • handheld devices with wireless communication capabilities computing devices or other processing devices connected to wireless modems
  • in-vehicle devices wearable devices
  • terminal devices in future 5G networks.
  • FIG. 2b is a schematic diagram of a working process of a communication system according to an embodiment of the present invention.
  • the workflow includes:
  • the transport block (TB) may be any transport type that carries any service type, for example, a transport block that is an eMBB service or a transport block of a URLLC service.
  • the base station receives the transport block sent by the MAC layer at the physical layer, and the transport block is a bit sequence.
  • the length of the transport block is not limited in this embodiment, and the lengths of the transport blocks of different service types are different. It should be noted that the base station can process multiple transport blocks, and the processing flow of each transport block in the physical layer is the same. The following describes the processing flow of the physical transport layer by one transport block.
  • the base station may calculate a CRC code of the transport block according to a preset CRC algorithm, and the calculated CRC code is a binary sequence of a specified length, and the base station adds the calculated CRC code to the TB to generate a check bit sequence.
  • the CRC algorithm includes but is not limited to any one of CRC-8, CRC-12, CRC-16, and CRC-32.
  • the segmentation is an optional step, and the base station determines whether the length of the check bit sequence generated by S202 is greater than a preset length threshold (for example, 6144 bits), where the length threshold is the maximum bit that the encoder can process in S204. If the result of the determination is yes, the base station divides the transport block of S201 into multiple sub-blocks, and adds a corresponding CRC code after each sub-block to obtain a code block (CB), which needs to ensure each code block. The length is less than the length threshold described above. If the result of the determination is no, the segmentation processing step is not performed. It should be noted that if segmentation is required, the processing flow of each code block passes through S204 to S209. The process of not requiring segmentation of S204-S209 will be described below.
  • a preset length threshold for example, 6144 bits
  • the channel coding provides error detection and error correction for the transmission of information bits.
  • the channel coding algorithm includes but is not limited to a Turbo code, a polarization code, and an LDPC (Low Density Parity Check Code, LDPC for short). ).
  • the base station performs channel coding on the parity bit sequence or the code block to which the CRC code is added to obtain a channel coding sequence.
  • the rate matching is used to match the amount of data to be transmitted and the number of transmission resources.
  • the Turbo encoder outputs three bit streams in parallel after channel coding the input bit stream, and the three bit streams are a system bit stream, a first parity bit stream, and a second parity bit stream, the three bit streams are simultaneously input into the row and column interleaver and stored in the ring buffer, the system bit stream is located at the head of the ring buffer, and the first parity bit stream and the second parity bit stream are sequentially Arranged after the system bit stream, the bit selector selects a starting point in the ring buffer and sequentially selects one line of data of a specified length from the starting point order as the input bit stream.
  • There are four kinds of starting point selection positions and the input bit stream corresponding to the four positions is called 4 Redundancy Version (RV).
  • RV Redundancy Version
  • the output bit stream of four redundant versions is called a redundancy version. sequence.
  • the base station performs a modulo two operation on the scrambling code sequence and the redundancy version sequence obtained in S205 to obtain a scrambling sequence, and the scrambling process is to randomize the interference.
  • the modulation is used to load the scrambling sequence on the carrier.
  • the modulation method includes, but is not limited to, any one of QAM, APSK, ASK, and QPSK.
  • the modulation order can be set as needed, which is not limited in this embodiment.
  • the base station modulates the scrambling sequence to obtain a sequence of modulation symbols.
  • the resource mapping indicates that the modulation symbols in the modulation symbol sequence are mapped to the corresponding antenna port and the video resource block corresponding to the slot n.
  • the rules of the resource mapping may be pre-defined by the protocol of the communication system, and the rules of the resource mapping may be related to the Cell.
  • the ID and subframe number are related to the scheduling policy of the base station.
  • the base station converts the QAM symbols mapped to the respective subcarriers in each symbol time into OFDM symbols through the IFFT, and then the base station up-converts the OFDM symbols to obtain a radio frequency signal, and sends the radio frequency signal to the user equipment through the wireless air interface.
  • S210 Receive an OFDM symbol.
  • the processing flow of the data in each sub-frame by the user equipment is consistent at the physical layer, and the user equipment first receives the control information in the control channel, and then obtains the data information in the data channel by using the control information.
  • the user equipment receives the OFDM symbol transmitted by the base station in slot n.
  • the user equipment performs FFT processing on the received OFDM symbol, converts the OFDM symbol into a modulation symbol, and searches for a modulation sent to the user equipment in the time-frequency resource block corresponding to the slot n according to the time-frequency resource location indicated by the base station.
  • the symbol, the modulation symbol transmitted to the user equipment is referred to as a sequence of modulation symbols in this embodiment.
  • the user equipment demodulates the modulation symbol sequence obtained after the FFT processing to obtain a scrambling sequence.
  • the user equipment performs a modulo two-add operation on the scrambling sequence by using a preset scrambling code sequence to obtain a redundant version of the redundancy version.
  • the user equipment performs de-synchronization matching on the redundancy version sequence obtained by S213 to obtain a channel coding sequence.
  • the user equipment separately performs channel decoding on each code block.
  • the user equipment performs channel decoding to obtain a check bit sequence.
  • the user equipment determines the CRC code and the information bit sequence in the check bit sequence, and calculates a CRC code by using the same CRC algorithm as S202, and compares whether the calculated CRC code and the CRC code in the check bit sequence are the same. The same indicates that the check passes, and the user equipment sends an ACK to the base station on the time slot n+t1; if not, it indicates that the check fails, and the user equipment sends a NACK to the base station on the time slot n+t1. It should be noted that if the TB is segmented on the base station side, the user equipment needs to perform verification on each CB, and then perform verification on the entire TB. After two successful verifications, the verification is passed, otherwise the verification is not performed. by.
  • the base station If the base station receives the ACK sent by the user equipment in the time slot n+t1, confirms that the transport block is successfully transmitted, and releases the HARQ process of the transport block; if the base station receives the NACK sent by the user in the time slot n+t1, it is confirmed that the transport block is not transmitted. Upon success, the base station retransmits another redundancy version to the user equipment at time slot n+t1+t2. Therefore, the method for retransmitting the data is that the base station needs to receive the NACK returned by the user equipment before performing retransmission. Generally, the time length of the eight time slots is required to be retransmitted. In addition, the base station needs to retransmit the entire transport block when receiving the NACK fed back by the user, and the amount of retransmitted data is large and occupies a large amount of transmission resources.
  • FIG. 3 is a schematic flowchart of a data sending method according to an embodiment of the present invention.
  • the method includes, but is not limited to, the following steps:
  • the first scheduling time where the first type data is punctured by the second type data, saving the first data subset occupied by the second type data in the first type data and the first data sub Punch position information gathered in the first type of data.
  • the unit of the first scheduling time may be a time slot or a sub-frame.
  • the length of the first scheduling time may be at least one time slot or at least one subframe.
  • the length of the time slot and the subframe is not limited in this embodiment.
  • the first type of data and the second type of data are data of two different types of services, and the second type of data has higher priority than the first type of data, for example, the first type of data is eMBB data, and the second type of data is URLLC data.
  • the time-frequency resource corresponding to the scheduling time is a time-frequency resource block, and the time-frequency resource block is a plurality of OFDM symbols in the entire time domain, and the duration of the multiple OFDM symbols is equal to the scheduling time, and the time-frequency resource block is more in the entire frequency domain.
  • One subcarrier, one OFDM symbol and one subcarrier are RE (Resouce Element, Resource Particle, RE for short) of the time-frequency resource block.
  • the time-frequency resource block corresponding to the first scheduling time is a first time-frequency resource block, and before the first type of data is punctured by the second type of data, the network device has allocated the first type of data in the first time-frequency resource block.
  • the network device can be a base station.
  • the puncturing is performed on the time-frequency resource of the first type of data, and the location of the network device puncturing the time-frequency resource of the first type of data is not limited in this embodiment.
  • the puncturing means that the network device allocates the time-frequency resource originally allocated to the first data subset in the time-frequency resource of the first type of data to the second type of data, so the network device can know that the first data subset is in the first type of data. Which REs are punctured, and the network device determines the punctured first data subset and the first data subset in the first type of data according to the position of the punctured RE, the network The device saves the first subset of data and the punch location information. Since the first type of data is punctured by the second type of data, the network device can only send the second data subset and the second of the first type data that are not punctured by the second type of data in the first scheduling time. Type data.
  • the second scheduling time is used to transmit the first data subset, the punching location information, and the puncturing indication information.
  • the unit of the second scheduling time may be a time slot or a subframe, and the duration of the second scheduling time is at least one time slot or at least one subframe.
  • the length of the time slot and the subframe is not limited in this embodiment.
  • the first scheduling time and the second scheduling time may belong to two adjacent scheduling operations, or may belong to two scheduling operations that are not adjacent; for example, the first scheduling time is slot n, and the second scheduling time is slot.
  • the first scheduling time is slot n
  • the second scheduling time is slot n+3.
  • the time-frequency resource block corresponding to the second scheduling time is a second time-frequency resource block.
  • the network device transmits the first data subset, the punching location information, and the puncturing indication information in the second scheduling time, where the puncturing location information indicates a location of the first data subset in the first type of data, and the puncturing indication information indicates A subset of data is the retransmission data triggered by the puncturing.
  • the puncturing location information and the puncturing indication information are carried in the DCI sent by the network device in the second scheduling time, and may be carried in other information sent by the network device in the second scheduling time, which is not limited in this embodiment.
  • the network device saves the first data subset of the first type data punctured by the second type data. And the punching position information of the first data subset in the first type of data, sending the first data subset, the punching location information, and the punching indication information to the user equipment at the second scheduling time, the network device does not need to wait for the user equipment
  • the feedback performs the retransmission operation, which reduces the delay of the retransmission operation.
  • the network device does not need to retransmit the entire first type of data when retransmitting, and only needs to retransmit the punctured first data subset, reducing The amount of data retransmitted and the retransmission operation occupy the time-frequency resources.
  • FIG. 4 is a schematic flowchart of a data receiving method according to an embodiment of the present invention.
  • the method includes:
  • the unit of the first scheduling time may be a time slot or a subframe, and the length of the time slot or the subframe is not limited in this embodiment.
  • the first scheduling time includes at least one time slot or at least one subframe, and the length of the first scheduling time. This embodiment is not limited.
  • the time-frequency resource corresponding to the first scheduling time is a first time-frequency resource block, and the user equipment acquires the second data subset at a specified location of the first time-frequency resource block according to the control information of the network device, and saves the second data subset.
  • the second subset of data belongs to a part of the first type of data to be sent in the network device, and the second subset of data is data that is not punctured by the second type of data in the first type of data.
  • the second scheduling time receives the first data subset, the punching location information, and the puncturing indication information.
  • the unit of the second scheduling time may be a time slot or a subframe, and the length of the time slot or the subframe is not limited in this embodiment, and the second scheduling time includes at least one time slot or at least one subframe, the first scheduling time and the first
  • the two scheduling times may belong to two adjacent scheduling operations, or may belong to two scheduling operations that are not adjacent.
  • the first scheduling time is slot n
  • the second scheduling time is slot n+1; for example, the first scheduling time is slot n, and the second scheduling time is slot n+2.
  • the time-frequency resource corresponding to the second scheduling time is the second time-frequency resource block
  • the user equipment may parse the first data subset, the punching location information, and the punching indication information in the second time-frequency resource block according to the indication of the network device.
  • the puncturing location information and the puncturing indication information may be in a DCI of a downlink physical control channel of the second time-frequency resource block.
  • the user equipment determines a location of the first subset of data in the first type of data based on the puncturing location information, whereby a positional relationship between the first subset of data and the second subset of data may be determined.
  • the user equipment determines the location relationship between the first data subset and the second data subset according to the puncturing location information, and the user equipment combines the first data subset and the second data subset to obtain the first type data.
  • the user equipment receives and saves the second data subset at the first scheduling time, and the user equipment receives the first data subset, the punching location information, and the punching indication information at the second scheduling time, and the user equipment performs the punching according to the punching
  • the indication information is learned that the first data subset is the retransmission data triggered by the puncturing, and the user equipment combines the first data subset and the second data subset according to the puncturing location information to obtain the first type data, so that the network device does not need to wait for the user equipment.
  • the feedback can retransmit the data to the user equipment, reducing the delay of the retransmission operation.
  • the user equipment does not need to receive all the eMBB data during the retransmission operation, and only needs to receive the data belonging to a part of the first type of data, which is reduced.
  • the first type of data is original eMBB data
  • the second service type data is eMBB data
  • the first data subset is the first eMBB data
  • the second data subset is the second eMBB data
  • the first eMBB data is as follows.
  • the second eMBB data and the original eMBB data are taken as a scrambling sequence after the scrambling process, and a method for transmitting the eMBB data according to the embodiment of the present invention is described in detail.
  • the method includes:
  • S501 Receive a transport block of an eMBB service.
  • the base station receives the transport block of the eMBB service in the slot n.
  • S501 to S506 is the same as that of S201 to S206 in FIG. 2b. For details, refer to the descriptions of S201 to S206, and details are not described herein again. It should be noted that the scrambling sequence of the eMBB service generated by the base station after the scrambling process is the original eMBB data.
  • the base station modulates the original eMBB data to generate a sequence of modulation symbols.
  • the specific modulation method is not limited in this embodiment.
  • the time-frequency resource block corresponding to the time slot n is the first time-frequency resource block
  • the base station maps the modulation symbol sequence of the eMBB service to the RE of the first time-frequency resource block, and the mapping method is not limited in this embodiment.
  • the first time-frequency resource block corresponds to 7 OFDM symbols in the time domain, 12 subcarriers in the frequency domain, and the first time-frequency resource block includes 84 REs, and the base station modulates the eMBB service.
  • the symbol sequence is mapped to the REs of the third column to the seventh column in the first time-frequency resource block, each modulation symbol is mapped with one RE, and the modulation symbols of the eMBB service are allocated a total of 60 REs.
  • the REs of the first column and the second column of the first time-frequency resource block are allocated to the control channel.
  • the physical layer of the base station receives the transport block of the new URLLC service.
  • the step of the base station receiving the transport block of the URLLC service may be located before or after any one of the steps S501 to S508, which is not limited in this embodiment.
  • the implementation process of S509 to S514 is the same as the steps of S201 to S206 in FIG. 2b.
  • the base station generates a scrambling bit sequence of the URLLC service after performing the scrambling process, and the scrambling bit sequence of the URLLC service is referred to as URLLC data in this embodiment.
  • the base station modulates the URLLC data to generate a sequence of modulation symbols of the URLLC service.
  • the modulation method is not limited in this embodiment.
  • the base station performs puncturing on the time-frequency resource block of the original eMBB data in the first time-frequency resource block, and the puncturing indicates that the URLLC data preempts the time-frequency resource in the time-frequency resource block of the original eMBB data, and the original eMBB data is used.
  • the time-frequency resource for mapping the first eMBB data in the frequency resource block is allocated to the URLLC data.
  • the base station performs puncturing on the REs of the third column to the seventh column, assuming that the base station is The puncturing position selected on the first time-frequency resource block is the RE of the fourth column, and the base station allocates the fourth column RE of the first time-frequency resource block to the URLLC data.
  • the base station since the original eMBB data, the first eMBB data, and the second eMBB data are scrambled bit sequences, the base station first determines the punctured REs in the first time-frequency resource block, and the base station according to the RE and the modulation.
  • the base station saves the first eMBB data and the punch location information.
  • the puncturing position information can be represented by the starting position and length of the first eMBB data in the original eMBB data.
  • the first eMBB data may be a continuous sequence in the original eMBB data, or the first eMBB data is a sequence of multiple consecutive segments in the original eMBB data, which is not limited in this embodiment.
  • the data in the first row of FIG. 7a is the unpunctured original eMBB data
  • the data in the second row is the URLLC data received in the slot n
  • the base station according to the punching on the first video resource block.
  • the pattern determines that the location of the original LCB data is the middle of the dotted line in the punctured position of the original eMBB data
  • the first eMBB data is the sixth to fifteenth bits in the original eMBB data
  • the base station determines that the first eMBB data is a continuous sequence
  • the puncturing position information is represented by the starting position and length of the first eMBB data.
  • the starting position of the first eMBB data is 6 and the length is 10.
  • the portion of the original eMBB data that is not punctured by the first eMBB data is the second eMBB data.
  • the data in the fourth row of FIG. 7a is a distribution diagram of URLLC data and second eMBB data obtained after puncturing the original eMBB data.
  • the first eMBB data is a two-sequence continuous sequence, and the base station uses the starting position of each sequence and the length of each sequence to indicate the punching position information.
  • the first eMBB is the first.
  • the segment sequence has a starting position of 6 and a length of 10; the second segment has a starting position of 22 and a length of 4.
  • the data in the fourth row of FIG. 7a is a distribution diagram of URLLC data and second eMBB data obtained after puncturing the original eMBB data.
  • the base station obtains the first OFDM symbol according to the URLLC data and the second eMBB data, and up-converts the first OFDM symbol to generate a radio frequency signal, and the base station sends the radio frequency signal to the user equipment.
  • the base station can construct a binary sequence A, and the binary sequence A is used to represent the first eMBB data and the punch location information.
  • the first eMBB data is a continuous sequence
  • Bits 00000110 indicate that the start position of the first eMBB data is the sixth bit in the original eMBB data, and 00001010 indicates that the length of the first eMBB data is 10.
  • the first eMBB data is a two-sequence continuous sequence
  • D1 to d9 represent the bits of the first segment sequence
  • 00000110 indicates that the start position of the first segment sequence is the sixth bit in the original eMBB data
  • 00001010 indicates that the length of the first segment sequence is 10
  • e1 to e4 indicate the first
  • 00010110 indicates that the start position of the second-segment sequence is the 22nd bit in the original eMBB data
  • 00000100 indicates that the length of the second-segment sequence is 4.
  • the length of the bit used to indicate the starting position and the length is not limited to the 8 bits of
  • the first eMBB data and the puncturing location information are not limited to the foregoing methods, and may be separately stored, and the puncturing location information is carried in the DCI or MAC-CE of the downlink control channel.
  • the base station acquires the first eMBB data and the punching position information saved in advance, and t is an integer greater than 0.
  • adding the CRC code is an optional step, adding a CRC code to the first eMBB data to increase the error detection and error correction capability of the data.
  • channel coding is an optional step, and channel coding is used to improve the anti-interference ability of the data.
  • the base station obtains the second OFDM symbol after the IFFT processing, and performs the up-conversion processing on the second OFDM symbol to obtain the radio frequency signal, and sends the radio frequency signal to the user equipment. It is worth noting that the user needs to send the puncturing indication information to the user equipment in the time slot n+t.
  • the puncturing indication information may be carried in the DCI of the downlink physical control channel, or carried in the MAC-CE, or carried in the time slot n. In other messages of +t, this embodiment is not limited.
  • the puncturing indication information indicates that the first eMBB data is a retransmission data triggered by puncturing.
  • the implementation process of S521 and S527 can be referred to the description of S202 to S207 of FIG. 2b.
  • the base station performs the process of adding the CRC code and the channel coding to the first eMBB data, thereby improving the reliability of transmitting the first eMBB data.
  • the base station in the case of slot n, the original scrambling sequence to be transmitted, the base station saves the punctured scrambling sequence and the punctured scrambling sequence in the original eMBB data in the original scrambling sequence.
  • the hole position information transmits the punctured scrambling sequence, the puncturing position information, and the puncturing indication information to the user equipment at the time slot n+t, and the base station does not need to wait for feedback from the user equipment to perform the retransmission operation, which reduces the weight.
  • the delay of the transmission operation, and the base station does not need to retransmit the entire original scrambling sequence when retransmitting, and only needs to retransmit the punctured scrambling sequence, reducing the amount of retransmitted data and the retransmission operation on the time-frequency resource. Occupied.
  • FIG. 6 is a process of the user equipment receiving the eMBB data in FIG. 5.
  • the process of receiving the eMBB data includes but is not limited to:
  • the user equipment receives the first OFDM symbol sent by the base station in the time slot n, and the process of generating the first OFDM symbol is shown in FIG. 5.
  • S601 to S606 is the same as that of S210 to S215 in FIG. 2b.
  • S210 to S215 For details, refer to the descriptions of S210 to S215, and details are not described herein again.
  • the check bit sequence includes an information bit and a CRC code
  • the CRC code is a bit sequence corresponding to the original eMBB data
  • the information bit here is a bit sequence corresponding to the second eMBB data
  • the CRC code calculated by the current information bits is different from the CRC code carried in the check bit sequence, and the result of the CRC in S607 is not passed.
  • the user equipment may save the scrambling sequence after generating the scrambling sequence in S603, where the scrambling sequence is the second eMBB data. It should be noted that, if the user equipment passes the verification result of the CRC in S607, the stored second eMBB data is deleted.
  • the base station receives the second OFDM symbol in the slot n+t, and the process of generating the second OFDM symbol can refer to the process shown in FIG. 5.
  • the first eMBB data is obtained after the CRC code is taken out.
  • the puncturing location information and the puncturing indication information sent by the base station are obtained in the time slot n+t, and the user equipment determines, according to the puncturing indication information, that the first eMBB data is the retransmission data triggered by the puncturing, acquiring the time slot.
  • the HARQ process number transmitted in n+t where the HARQ process number can be carried in the DCI of the time slot n+t transmission.
  • the base station determines, according to the HARQ process number obtained by the slot n+t, that the initial transmission operation is located in the slot n, and the slot n and the slot n+t have the same HARQ process number.
  • the user equipment acquires the second eMBB data saved in the time slot n, and combines the first eMBB data and the second eMBB data according to the punctured location information to obtain the original eMBB data, where the original eMBB data is a scrambling sequence.
  • the base station performs descrambling processing on the scrambling sequence to obtain a redundancy version sequence.
  • the user equipment receives and stores the unpunctured scrambling sequence in the original scrambling sequence in the time slot n, and the user equipment receives the punctured scrambling sequence, the puncturing position information, and the punctured location information in the slot n+t
  • the punching indication information is obtained by the user equipment according to the punching indication information, and the data received by the time slot n+t is the retransmission data triggered by the punching, and the user equipment combines the scrambling sequence of the punching and the unpunctured according to the punching position information.
  • the scrambling sequence obtains the original scrambling sequence, so that the base station can retransmit the data to the user equipment without waiting for feedback from the user equipment, reducing the delay of the retransmission operation, and the user equipment does not need to receive all the original additions during the retransmission operation.
  • the scrambling sequence only needs to receive data belonging to a part of the original scrambling sequence, which reduces the amount of data of the retransmission operation and the occupation of the time-frequency resources.
  • the first type of data is original eMBB data
  • the second service type data is eMBB data
  • the first data subset is the first eMBB data
  • the second data subset is the second eMBB data
  • the first eMBB data is used below.
  • the second eMBB data and the original eMBB data are modulation symbols to describe a method for transmitting eMBB data in the embodiment.
  • the implementation process of S801 to S807 can be referred to the description of S201 to S207 in FIG. 2b.
  • the modulation symbol sequence is generated after the modulation process, and the modulation symbol sequence at this time is the original eMBB data.
  • the time-frequency resource block corresponding to the time slot n is the first time-frequency resource block, and the base station maps the original eMBB data to the RE of the first time-frequency resource block.
  • the mapping method is not limited in this embodiment.
  • the first time-frequency resource block corresponds to 7 OFDM symbols on the slot, and corresponds to 12 sub-carriers in the frequency domain
  • the base station maps the original eMBB data to the third column in the first time-frequency resource block.
  • the RE of the seventh column one RE is mapped to each modulation symbol in the original eMBB data, and the original eMBB data is allocated a total of 60 REs.
  • the REs of the first column and the second column of the first time-frequency resource block are allocated to the control channel for use.
  • the physical layer of the base station receives the transport block of the new URLLC service.
  • the step of the base station receiving the transport block of the URLLC service may be located before or after any one of the steps S801 to S808, which is not limited in this embodiment.
  • the implementation process of S810 to S815 is the same as that of S201 to S206 in FIG. 2b.
  • the specific implementation process may refer to the descriptions of S201 to S206.
  • the base station generates a modulation symbol sequence of the URLLC service after performing modulation processing, and the modulation symbol sequence of the URLLC service is referred to as URLLC data in this embodiment.
  • the base station performs puncturing on the time-frequency resource block of the original eMBB data in the first time-frequency resource block, and puncturing indicates that the URLLC data preempts the time-frequency resource in the time-frequency resource block of the original eMBB data, and the time of the original eMBB data is
  • the time-frequency resource for mapping the first eMBB data in the frequency resource block is allocated to the URLLC data.
  • the base station when the base station receives the URLLC data on the slot n, the base station determines that the time-frequency resource of the original eMBB data mapping in the first time-frequency resource block is the RE of the third to seventh columns, and the base station Punching is performed on the REs of the third column to the seventh column. Assuming that the punching position is the RE of the fourth column, the base station assigns the RE of the fourth column to the URLLC data. The base station determines the punctured RE in the first time-frequency resource block, and determines the first eMBB data punctured by the URLLC data in the original eMBB data according to the mapping relationship between the RE and the modulation symbol.
  • the base station transmits a first OFDM symbol, and the first OFDM symbol is generated by the URLLC data and the second eMBB data.
  • the first eMBB data is a modulation symbol
  • the punctured location information indicates a first mapping pattern of the first eMBB data in the time-frequency resource block corresponding to the first scheduling time.
  • the base station stores the first mapping pattern of the first eMBB data of FIG. 1b in the time-frequency resource block.
  • the time-frequency resource block corresponding to the time slot n+t is a second time-frequency resource block
  • the base station maps the first eMBB data on the second time-frequency resource block, and the base station may first perform the time-domain frequency domain when performing resource mapping.
  • the mapping of the rules is performed, and the mapping position of the base station on the second time-frequency resource block is not limited in this embodiment.
  • the mapping position of the first eMBB data in the time-frequency resource block corresponding to the slot n+t is the RE composed of the third column to the seventh column and the eighth row to the ninth row.
  • the first mapping pattern in the time-frequency resource block corresponding to the first eMBB data in the slot n is the same as the second mapping pattern in the time-frequency resource block corresponding to the first eMBB data in the slot n+t.
  • the punch location information notified by the base station to the user equipment in the slot n+t may be the first mapping pattern or the second mapping pattern.
  • the puncturing location information may further represent a conversion rule of the first eMBB data in the time-frequency resource block corresponding to the second scheduling time; wherein the conversion rule indicates that the first mapping pattern and the first eMBB data are in the Corresponding relationship between the second mapping patterns in the time-frequency resource block corresponding to the second scheduling time.
  • the conversion rule represents a correspondence between the first mapping pattern of FIG. 1b and the second mapping pattern of FIG.
  • the base station obtains the second OFDM symbol by performing IFFT on the first eMBB data, and upconverts the second OFDM symbol to obtain a radio frequency signal, and sends the radio frequency signal to the user equipment.
  • the base station in the case of slot n, the original modulation symbol sequence to be transmitted, the base station saves the punctured modulation symbol sequence and the punctured modulation symbol sequence in the original eMBB data in the original modulation symbol sequence.
  • the hole position information transmits the punctured modulation symbol sequence, the puncturing position information, and the puncturing indication information to the user equipment at the time slot n+t, and the base station does not need to wait for the feedback of the user equipment to perform the retransmission operation, which reduces the weight.
  • the delay of the transmission operation, and the base station does not need to retransmit the entire original modulation symbol sequence during retransmission, and only needs to retransmit the punctured modulation symbol sequence, thereby reducing the amount of retransmitted data and the retransmission operation on the time-frequency resource. Occupied.
  • FIG. 9 is a schematic flowchart of the user equipment corresponding to FIG. 8 receiving the eMBB data.
  • the method includes, but is not limited to, the following steps:
  • the user equipment receives the first OFDM symbol on the time slot n, and the process of generating the first OFDM symbol can refer to the description in FIG. 8.
  • S901 to S906 is the same as that of S210 to S215 in FIG. 2b.
  • S210 to S215 For details, refer to the descriptions of S210 to S215, and details are not described herein again.
  • the check bit sequence includes an information bit sequence and a check code
  • the check code is generated by the information bit sequence corresponding to the original eMBB data, and the information bit sequence here is the second eMBB.
  • the information bit sequence corresponding to the data is different. Therefore, the CRC code calculated according to the current information bit sequence is different from the CRC code carried in the check bit sequence, and the result of the CRC in S907 is not passed.
  • the user equipment may store the second eMBB data after generating the modulation symbol sequence. It should be noted that, in the case where the result of the CRC is passed in S907, the user equipment deletes the stored second eMBB data.
  • the user equipment receives the second OFDM symbol in the slot n+t, and the process of generating the second OFDM symbol can refer to the process shown in FIG. 8.
  • the user equipment obtains the first eMBB data after the FFT, and the first eMBB data is a sequence of modulation symbols.
  • the first eMBB data is determined to be the retransmission data triggered by the puncturing, and the second eMBB data pre-stored in the time slot n is obtained.
  • the base station may determine the implementation n with the same HARQ process ID according to the HARQ process number corresponding to the slot n+t.
  • the puncturing indication information may be carried in the DCI or the MAC-CE of the downlink physical channel, or may be carried in other messages in the time slot n+t, which is not limited in this embodiment.
  • the puncturing location information indicates a first mapping pattern of the first eMBB data in the first time-frequency resource block of the slot n.
  • the puncturing position information indicates a conversion rule between the first mapping pattern and the second mapping pattern
  • the second mapping pattern indicates the second time-frequency resource of the second eMBB data in the time slot n+t
  • the user equipment may obtain the first mapping pattern of the first eMBB data in the first time-frequency resource block of the slot n according to the conversion rule and the second mapping pattern.
  • the step 910 further includes a step of demapping for obtaining the first mapping pattern according to the second mapping pattern and the conversion rule.
  • the punctured location information may be carried in the DCI or MAC-CE of the time slot n+t, or other messages, which are not limited in this embodiment.
  • the user equipment receives the puncturing position information sent by the base station in the time slot n+t, determines the positional relationship between the first eMBB data and the second eMBB data according to the puncturing position information, and performs the first eMBB data and the second eMBB data. Merge to get the original eMBB data.
  • the user equipment receives and stores the un-punctured modulation symbol sequence in the original modulation symbol sequence in the time slot n, and the user equipment receives the punctured modulation symbol sequence, the puncturing position information, and the time slot n+t
  • the punching indication information is obtained by the user equipment according to the punching indication information, and the data received by the time slot n+t is the retransmission data triggered by the punching, and the user equipment combines the punched modulation symbol sequence and the unpunctured according to the punching position information.
  • the modulation symbol sequence obtains the original modulation symbol sequence, so that the base station can retransmit the data to the user equipment without waiting for feedback from the user equipment, reducing the delay of the retransmission operation, and the user equipment does not need to receive all the original modulation during the retransmission operation.
  • the symbol sequence only needs to receive data belonging to a part of the original modulation symbol sequence, which reduces the amount of data of the retransmission operation and the occupation of the time-frequency resource.
  • the data transmitting apparatus 11 shown in FIG. 11 can implement the network device side of the embodiment shown in FIG. 3, wherein the saving unit 1101 is configured to perform step S301; and the transmitting unit 1102 is configured to perform step S302.
  • the data transmitting device 11 may be a base station, and the data transmitting device 11 may also be an application specific integrated circuit (ASIC) or a digital signal processor (English: Digital Signal Processor). Abbreviation: DSP) or chip.
  • ASIC application specific integrated circuit
  • DSP Digital Signal Processor
  • the data receiving apparatus 12 shown in FIG. 12 can implement the user equipment side of the embodiment shown in FIG. 4, wherein the saving unit 1201 is configured to perform step S401; the receiving unit 1202 is configured to perform step S402; and the merging unit 1203 is performed. Used to perform step S403.
  • the data receiving device 12 may be a user equipment, and the data receiving device 12 may also be a field-programmable gate array (FPGA) or an application specific integrated circuit (ASIC) that implements related functions.
  • FPGA field-programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processor
  • microcontroller (micro controller) Unit MCU
  • PLD programmable logic device
  • an embodiment of the present invention further provides an apparatus 13.
  • the method includes:
  • the memory 1303 is configured to store programs and data, where the memory may be random access memory (English: Random Access Memory, RAM for short) or read only memory (English: Read Only Memory, ROM for short) or flash memory, where the memory
  • the 1303 can be located either alone in the communication device or inside the processor 1301.
  • the memory 1303 is configured to save the first data subset occupied by the second type data in the first type data and the punch location information of the first data subset in the first type data.
  • the transceiver 1302 can be used as a separate chip, or can be a transceiver circuit in the processor 1301 or as an input/output interface.
  • the transceiver 1302 is configured to receive the first type data and the second type data at the first scheduling time, and the second scheduling time, and transmit the first data subset, the punch location information, and the puncturing indication information;
  • the punching indication information is used to indicate that the first subset of data is a retransmission data triggered by a punch.
  • a processor 1301 configured to execute the program stored by the memory, when the program is executed, the processor 1301 is used for a first scheduling time, in a case where the first type data is punctured by the second type data,
  • the indication memory 1302 stores a first subset of data of the first type of data occupied by the second type of data and puncturing location information of the first subset of data in the first type of data.
  • the transceiver 1303, the memory 1302, and the processor 1301 are optionally connected by a bus 3024.
  • the network device 13 When the network device 13 is a chip, it may be a field-programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (SoC) for implementing related functions.
  • FPGA field-programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processor
  • MCU microcontroller
  • PLD programmable Controller
  • PLD programmable logic device
  • chips may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device that includes one or more servers, data centers, etc. that can be integrated with the media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a solid state disk (SSD)
  • an embodiment of the present invention further provides a device 14.
  • the method includes:
  • the transceiver 1403 can be used as a separate chip, or can be a transceiver circuit in the processor 1401 or as an input/output interface.
  • the transceiver 1401 receives a second subset of data at a first scheduling time, and receives a first subset of data, puncturing location information, and puncturing indication information at a second scheduling time; wherein the puncturing indication information is used
  • the first data subset is indicated to be a puncturing triggered retransmission data
  • the puncturing location information indicates a location of the first subset of data in the first type of data.
  • the memory 1402 is configured to store programs and data; wherein the memory may be a RAM or a ROM or a flash memory, wherein the memory may be located in the communication device alone or inside the processor 4042.
  • the memory 1402 is configured to save the second subset of data at the first scheduling time.
  • the processor 1401 is configured to execute the program stored by the memory.
  • the processor 1401 is configured to combine the first data subset and the second data subset according to the punch location information to obtain the first type of data.
  • the transceiver 1403, the memory 1402, and the processor 1401 are optionally connected by a bus.
  • the device 14 When the device 14 is a chip, it may be a field-programmable gate array (FPGA), an application specific integrated circuit (ASIC), or a system on chip (SoC) for implementing related functions.
  • FPGA field-programmable gate array
  • ASIC application specific integrated circuit
  • SoC system on chip
  • CPU central processor unit
  • NP network processor
  • DSP digital signal processor
  • MCU microcontroller
  • PLD programmable Controller
  • PLD programmable logic device
  • chips may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device that includes one or more servers, data centers, etc. that can be integrated with the media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a solid state disk (SSD)
  • the embodiment of the present invention further provides a communication system, including the network device and the user equipment in the foregoing network device embodiment.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used 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. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Detection And Prevention Of Errors In Transmission (AREA)

Abstract

本申请公开了一种数据发送方法、接收方法和装置。所述数据发送方法包括网络设备在第一类型数据被打孔的情况下,保存第一类型数据中被打孔的第一数据子集和第一数据子集在第一类型数据用户设备打孔位置信息,在第二调度时间重传第一数据子集,这样网络设备不需要等待用户设备反馈就能进行重传操作,减小了重传的时延,另外网络设备在第二调度时间上只需要重传被打孔的第一数据子集,不需要重传整个第一类型数据,减少了重传的数据量和对传输资源的消耗。

Description

数据发送方法、接收方法和相关设备 技术领域
本发明涉及通信领域,尤其涉及一种数据发送方法、接收方法和相关设备。
背景技术
在5G新空口的应用场景中,多种业务类型的数据可以并行传输,例如:eMBB(enhanced Mobile BroadBand,增强移动宽带,简称eMBB)数据和URLLC(Ultra-Reliable and Low Latency Communication,高可靠低时延通信)数据可以在同一个调度时间内进行传输。由于URLLC数据具有低时延和高可靠性的特点,通常具有更高的优先级,基站准备发送eMBB数据的过程中,如果新的URLLC数据到达,基站会在eMBB数据的时频资源上进行打孔,将原本属于eMBB数据的时频资源分配给接收到的URLLC数据。参见图1a和图1b所示,图1a表示时隙n上分配给eMBB数据的时频资源的示意图,图1b表示在时隙n上URLLC数据在eMBB数据的时频资源上进行打孔的示意图,由于eMBB数据的时频资源被URLLC数据打孔,会造成基站在时隙n上发送的eMBB数据不完整,为确保用户设备接收到正确的eMBB数据,基站需要重传eMBB数据,如何重传eMBB数据是目前亟待解决的问题。
发明内容
本发明实施例所要解决的技术问题在于,提供一种数据发送方法、接收方法和相关设备,解决了重传被打孔数据的问题。
第一方面,本申请提供了一种数据发送方法,包括:在第一调度时间内,网络设备的第一类型数据被第二类型数据打孔,其中,网络设备可以是基站,第一类型数据和第二类型数据为两种不同业务类型的数据,第二类型数据的优先级高于第一优先级数据,例如:第一类型数据为eMBB数据,第二类型数据为URLLC数据。打孔表示第一类型数据的时频资源被第二类型数据抢占,网络设备确定第一类型数据中被第二类型数据打孔的第一数据子集,以及确定第一数据子集在第一类型数据中的打孔位置信息,第一类型数据中未被第二类型数据打孔的数据为第二数据子集,第一数据子集和第二数据子集组成第一类型数据。在第一调度时间上,网络设备传输第二数据子集和第二类型数据。在第二调度时间上,网络设备传输第一数据子集、打孔位置信息和打孔指示信息,打孔指示信息表示第二调度时间传输的第一数据子集为打孔触发的重传数据。
需要说明的是,网络设备将第一调度时间和第二调度时间设置相同的HARQ进程号,表明第一调度时间和第二调度时间都用于传输第一类型数据,HARQ进程号可携带在DCI中。实施第一方面的实施例,网络设备在第一类型数据被打孔的情况下,保存第一类型数据中被打孔的第一数据子集和第一数据子集在第一类型数据用户设备打孔位置信息,在第二调度时间重传第一数据子集,这样网络设备不需要等待用户设备反馈就能进行重传操作,减小了重传的时延,另外网络设备在第二调度时间上只需要重传被打孔的第一数据子集,不需要重传整个第一类型数据,减少了重传的数据量和对传输资源的消耗。
在第一方面的一种可能的实现方式中,第一数据子集、第二数据子集和第一类型数据为加扰处理后的加扰序列。其中,第一数据子集为第一类型数据中一段或多段连续的比特序列。
在第一方面的一种可能的实现方式中,第一数据子集和第一类型数据的为调制处理后得到的调制符号序列。
在第一方面的一种可能的实现方式中,打孔位置信息表示第一数据子集在第一类型数据中的起始位置和第一数据子集的长度。其中,在第一数据子集为第一类型数据中一段连续的比特序列的情况下,打孔位置信息包括该比特序列的首个比特位在第一类型数据中的序号和该比特序列的长度;在第一数据子集为第一类型数据中多段连续的比特序列的情况下,打孔位置信息包括每段比特序列的首个比特位在第一类型数据中的序号和每段比特序列的长度。
在第一方面的一种可能的实现方式中,打孔位置信息表示:
第一数据子集在第一调度时间对应的时频资源块中的第一映射图样;或
第一数据子集在第二调度时间对应的时频资源块中的转换规则;其中,转换规则表示第一映射图样和第一数据子集在第二调度时间对应的时频资源块中的第二映射图样之间的对应关系。
在第一方面的一种可能的实现方式中,传输第一数据子集包括:
根据CRC(Cyclic Redundancy Check,循环冗余校验,简称CRC)算法计算第一数据子集的循环冗余校验CRC码;
将CRC码添加到第一数据子集的后面生成校验比特序列;
将校验比特序列进行分段处理得到多个码块;
为每个码块添加CRC码;
将添加CRC码的码块进行信道编码处理得到信道编码序列;
将信道编码序列进行速率匹配得到冗余版本序列;
将冗余版本序列进行加扰处理得到加扰序列;
将加扰序列进行调制处理后得到调制符号序列;
将调制符号序列进行资源映射和IFFT(Inverse Fast Fourier Transform,快速傅里叶逆变换,简称IFFT)处理后得到OFDM(Orthogonal Frequency Division Multiplexing,正交频分复用,简称OFDM)符号;
将OFDM符号进行上变频处理得到射频信号;
向用户设备发送射频信号。
在第一方面的一种可能的实现方式中,传输第一数据子集包括:
将第一数据子集进行资源映射和IFFT处理后得到OFDM符号;
将OFDM符号进行上变频处理得到射频信号;
向用户设备发送射频信号。
在第一方面的一种可能的实现方式中,打孔位置信息通过物理下行控制信道中的下行控制信息DCI或物理下行共享信道传输给用户设备。
在第一方面的一种可能的实现方式中,打孔指示信息通过物理下行控制信道中的DCI (Downlink Control Information,下行控制信息,简称DCI)或MAC-CE发送给用户设备。
第二方面,本申请提供了一种eMBB数据的接收方法,首先,用户设备在第一调度时间上接收第二数据子集,保存第二数据子集,用户设备在第二调度时间上接收第一数据子集、位置信息和打孔指示信息,打孔位置信息表示第一数据子集在第一类型数据中的位置,打孔指示信息表示第一数据子集为打孔触发的重传数据。其中,用户设备在第一调度时间上还会接收第二类型数据,第二类型数据为在第一类型数据的时频资源块上进行打孔的数据;第一类型数据和第二类型数据为不同业务类型的数据,第二类型数据的优先级高于第一类型数据,例如:第一类型数据为eMBB数据,第二类型数据为URLLC数据。用户设备在第二调度时间上接收到的打孔指示信息的情况下,确定第一数据子集为打孔触发的重传数据。网络设备在调度一次数据传输时,将所有的调度时间都设置相同的HARQ进程号,用户设备可根据在第二调度时间接收的DCI获取当前的HRAQ进程号,然后在前面的调度时间确定与当前的HARQ进程号相同的第一调度时间,获取第一调度时间上保存的第二数据子集,根据打孔位置信息将第一数据子集和第二数据子集进行合并得到原始数据。实施第二方面的实施例,用户设备在接收到第一调度时间上的第二数据子集时保存第二数据子集,用户设备在第二调度时间上接收到第一数据子集,根据打孔指示信息确定第一数据子集为打孔触发的重传数据,用户设备根据位置信息合并第一数据子集和第二数据子集得到完整的第一类型数据,网络设备不需要等待用户设备反馈就能向用户设备重传数据,减少重传的时延,同时用户设备接收重传的数据属于第一类型数据的一部分的第一数据子集,不需要接收整个第一类型数据,减少了接收重传数据的数据量。
在第二方面的一种可能的实现方式中,第一数据子集、第二数据子集和第一类型数据为解调处理后的加扰序列。
在第二方面的一种可能的实现方式中,第一数据子集、第二数据子集和第一类型数据为快速傅里叶变换FFT处理后的调制符号序列。
在第二方面的一种可能的实现方式中,打孔位置信息表示第一数据子集在第一类型数据中的起始位置,以及第一数据子集的长度。
在第二方面的一种可能的实现方式中,打孔位置信息表示:
第一数据子集在第一调度时间对应的时频资源块中的第一映射图样;或
第一数据子集在第二调度时间对应的时频资源块中的第二映射图样和转换规则;其中,转换规则第一映射图样和第二映射图样之间的对应关系。
在第二方面的一种可能的实现方式中,接收第一数据子集包括:
接收OFDM符号;
将OFDM符号进行FFT处理得到调制符号序列;
将调制符号序列进行解调处理得到加扰序列;
将加扰序列进行解扰处理得到第一冗余版本序列;
将第一冗余版本序列进行解速率匹配处理得到第一信道编码序列;
将第一信道编码序列进行信道解码处理得到第一校验比特序列;
去除第一校验比特序列中的CRC码得到第一数据子集。
在第二方面的一种可能的实现方式中,还包括:
将第一类型数据进行解扰处理得到第二冗余版本序列;
将第二冗余版本序列进行解速率匹配得到第二信道编码序列;
将第二信道编码序列进行信道解码处理得到第二校验比特序列;
根据第二校验比特序列中的CRC码判断校验比特序列中的信息比特序列是否正确。
在第二方面的一种可能的实现方式中,还包括:
将第一类型数据进行解调处理得到调制符号序列;
将调制符号序列进行解扰处理得到冗余版本序列;
将冗余版本序列进行解速率匹配得到信道编码序列;
将信道编码序列进行信道解码处理得到校验比特序列;
根据校验比特序列中的CRC码进行CRC处理。
在第二方面的一种可能的实现方式中,打孔位置信息通过物理下行控制信道中的下行控制信息DCI或物理下行共享信道接收的。
在第二方面的一种可能的实现方式中,打孔指示信息通过物理下行控制信道中的DCI或MAC-CE接收的。
第三方面,本申请提供了一种数据发送装置,包括:
保存单元,用于第一调度时间,在第一类型数据被第二类型数据打孔的情况下,保存第一类型数据中被所述第二类型数据占用的第一数据子集以及所述第一数据子集在所述第一类型数据中的打孔位置信息;
传输单元,用于第二调度时间,传输所述第一数据子集、所述打孔位置信息以及打孔指示信息;其中,所述打孔指示信息用于表示所述第一数据子集为打孔触发的重传数据。
在第三方面的一种可能的实现方式中,所述传输单元用于:
根据CRC算法计算所述第一数据子集的循环冗余校验CRC码;
将所述CRC码添加到所述第一数据子集的后面生成校验比特序列;
将所述校验比特序列进行分段处理得到码块;
为每个码块添加对应的CRC码;
将添加CRC码后的码块进行信道编码处理得到信道编码序列;
将所述信道编码序列进行速率匹配得到冗余版本序列;
将所述冗余版本序列进行加扰处理得到加扰序列;
将所述加扰序列进行调制处理后得到调制符号序列;
将所述调制符号序列进行资源映射和IFFT处理后得到OFDM符号;
将所述OFDM符号进行上变频处理得到射频信号;
向用户设备发送所述射频信号。
在第三方面的一种可能的实现方式中,所述传输单元用于:
将所述第一数据子集进行资源映射和IFFT处理后得到OFDM符号;
将所述OFDM符号进行上变频处理得到射频信号;
向用户设备发送所述射频信号。
第四方面,本申请提供了一种装置,包括:处理器和存储器,其中,存储器存储了指令,当运行该装置时,使得所述处理器执行以下步骤:
第一调度时间,在第一类型数据被第二类型数据打孔的情况下,指示所述存储器保存第一类型数据中被所述第二类型数据占用的第一数据子集以及所述第一数据子集在所述第一类型数据中的打孔位置信息;
输出所述第一数据子集、所述打孔位置信息以及打孔指示信息;其中,所述打孔指示信息用于表示所述第一数据子集为打孔触发的重传数据。
在第四方面的一种可能的实现方式中,所述处理器还用于:
根据CRC算法计算所述第一数据子集的循环冗余校验CRC码;
将所述CRC码添加到所述第一数据子集的后面生成校验比特序列;
将所述校验比特序列进行分段处理得到码块;
为每个码块添加对应的CRC码;
将添加CRC码后的码块进行信道编码处理得到信道编码序列;
将所述信道编码序列进行速率匹配得到冗余版本序列;
将所述冗余版本序列进行加扰处理得到加扰序列;
将所述加扰序列进行调制处理后得到调制符号序列;
将所述调制符号序列进行资源映射和IFFT处理后得到OFDM符号;
将所述OFDM符号进行上变频处理得到射频信号;
输出所述射频信号。
在第四方面的一种可能的实现方式中,所述处理器还用于:
将所述第一数据子集进行资源映射和IFFT处理后得到OFDM符号;
将所述OFDM符号进行上变频处理得到射频信号;
输出所述射频信号。
第五方面,本申请公开了一种数据接收装置,包括:
保存单元,用于第一调度时间,接收并保存第二数据子集;
接收单元,用于第二调度时间,接收第一数据子集、打孔位置信息以及打孔指示信息;其中,所述打孔指示信息用于指示所述第一数据子集是打孔触发的重传数据,所述打孔位置信息表示所述第一数据子集在第一类型数据中的位置;
合并单元,用于根据所述打孔位置信息合并所述第一数据子集和所述第二数据子集得到所述第一类型数据。
在第五方面的一种可能的实施方式中,所述接收单元用于:
接收OFDM符号;
将所述OFDM符号进行FFT处理得到调制符号序列;
将调制符号序列进行解调处理得到加扰序列;
将所述加扰序列进行解扰处理得到第一冗余版本序列;
将第一冗余版本序列进行解速率匹配处理得到第一信道编码序列;
将所述第一信道编码序列进行信道解码处理得到第一校验比特序列;
去除所述第一校验比特序列中的CRC码得到所述第一数据子集。
在第五方面的一种可能的实现方式中,还包括:
解扰单元,用于将所述第一类型数据进行解扰处理得到第二冗余版本序列;
解速率匹配单元,用于将所述第二冗余版本序列进行解速率匹配得到第二信道编码序列;
解码单元,用于将所述第二信道编码序列进行信道解码处理得到第二校验比特序列;
CRC单元,用于根据所述第二校验比特序列中的CRC码判断所述校验比特序列中的信息比特序列是否正确。
在第五方面的一种可能的实现方式中,还包括:
解调单元,用于将所述第一类型数据进行解调处理得到调制符号序列;
解扰单元,用于将所述调制符号序列进行解扰处理得到冗余版本序列;
解速率匹配单元,用于将冗余版本序列进行解速率匹配得到信道编码序列;
解码单元,用于将所述信道编码序列进行信道解码处理得到校验比特序列;
CRC单元,用于根据所述校验比特序列中的CRC码进行CRC处理。
第六方面,本申请公开了一种装置,包括处理器和存储器,存储器中存储了指令,当运行该装置时,使得所述处理器用于执行以下步骤:
第一调度时间,接收第二数据子集;
在第二调度时间,接收第一数据子集、打孔位置信息以及打孔指示信息;其中,所述打孔指示信息用于指示所述第一数据子集是打孔触发的重传数据,所述打孔位置信息表示所述第一数据子集在第一类型数据中的位置;
根据所述打孔位置信息合并所述第一数据子集和所述第二数据子集得到所述第一类型数据;
所述存储器,用于在所述第一调度时间保存所述第二数据子集。
在第六方面的一种可能的实现方式中,
所述处理器,还用于将所述OFDM符号进行FFT处理得到调制符号序列;
将调制符号序列进行解调处理得到加扰序列;
将所述加扰序列进行解扰处理得到第一冗余版本序列;
将第一冗余版本序列进行解速率匹配处理得到第一信道编码序列;
将所述第一信道编码序列进行信道解码处理得到第一校验比特序列;
去除所述第一校验比特序列中的CRC码得到所述第一数据子集。
在第六方面的一种可能的实现方式中,所述处理器还用于:
将所述第一类型数据进行解扰处理得到第二冗余版本序列;
将所述第二冗余版本序列进行解速率匹配得到第二信道编码序列;
将所述第二信道编码序列进行信道解码处理得到第二校验比特序列;
根据所述第二校验比特序列中的CRC码判断所述校验比特序列中的信息比特序列是否正确。
在第六方面的一种可能的实现方式中,所述处理器还用于:
将所述第一类型数据进行解调处理得到调制符号序列;
将所述调制符号序列进行解扰处理得到冗余版本序列;
将冗余版本序列进行解速率匹配得到信道编码序列;
将所述信道编码序列进行信道解码处理得到校验比特序列;
根据所述校验比特序列中的CRC码进行CRC处理。
第七方面,本申请公开了一种计算机可读存储介质,包括指令,当其在计算机上运行时,使得计算机执行如第一方面所述的数据发送方法。
第八方面,本申请公开了一种计算机可读存储介质,包括指令,当其在计算机上运行时,使得计算机执行如第二方面所述的数据接收方法。
附图说明
为了更清楚地说明本发明实施例或背景技术用户设备技术方案,下面将对本发明实施例或背景技术中所需要使用的附图进行说明。
图1a是控制信道和eMBB数据在时隙n的时频资源块上的映射图样;
图1b是URLLC数据在eMBB数据的时频资源上进行打孔的示意图;
图2a是本发明实施例的通信系统的网络架构图;
图2b本发明实施例提供的一种数据在基站和用户设备的物理层的处理流程图;
图3是本发明实施例提供的一种数据发送方法的流程示意图;
图4是本发明实施例提供的一种数据接收方法的流程示意图;
图5是本发明实施例提供的一种数据发送方法的另一流程示意图;
图6是本发明实施例提供的一种数据接收方法的另一流程示意图;
图7a是本发明实施例提供的一种数据打孔示意图;
图7b是本发明实施例提供的另一种数据打孔示意图;
图8是本发明实施例提供的一种数据发送方法的另一流程示意图;
图9是本发明实施例提供的一种数据接收方法的另一流程示意图;
图10是本发明实施例提供的一种第一eMBB数据在时频资源块上的映射图样;
图11是本发明实施例提供的一种数据发送装置的结构示意图;
图12是本发明实施例提供的一种数据接收装置的结构示意图;
图13是本发明实施例提供的一种网络设备的结构示意图;
图14是本发明实施例提供的一种用户设备的结构示意图。
具体实施方式
参见图2a,图2a为本发明实施例涉及的一种通信系统的结构示意图,所述通信系统包括基站和用户设备。该通信系统可以是全球移动通信系统(Global System for Mobile Communication,GSM),码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统,全球微波互联接入(Worldwide Interoperability for Microwave Access,WiMAX)系统、长期演进(long term evolution,LTE)系统,5G通信系统(例如新空口(New Radio,NR)系统、多种通信技术融合的通信系统(例如LTE技术和NR技术融合的通信系统),或者后续演进通信系统。
其中,基站通过无线空口与用户设备进行通信,基站可以是GSM系统或CDMA(Code Division Multiple Access,码分多址,简称CDMA)系统中的BTS(Base Transceiver Station,基站收发信台,简称BTS),也可以是WCDMA系统中的NB(Node B,节点B,简称NB), 还可以是LTE系统中的eNB(evolutional Node B,演进节点B,简称eNB),甚至还可以是5G系统中的基站及未来通信系统中的基站。基站主要负责空口侧的无线资源管理、服务质量管理(Quality of Service,QoS)、数据压缩和加密等功能。针对核心网侧,基站主要负责向核心网转发控制面信令和用户面业务数据。
其中,用户设备是通过基站接入网络侧的设备,用户设备包括但不限于蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其他处理设备、车载设备、可穿戴设备以及未来5G网络中的终端设备等。
参见图2b,为本发明实施例提供的通信系统的工作流程示意图,在本发明实施例中,工作流程包括:
S201、接收传输块。
其中,传输块(Transport Block,TB)可以是承载任意业务类型,例如传输块为eMBB业务的传输块或URLLC业务的传输块。在时隙n上,基站在物理层接收MAC层发送的传输块,传输块为一个比特序列,传输块的长度本实施例不作限制,不同业务类型的传输块的长度有所不同。需要说明的是,基站可处理多个传输块,每个传输块在物理层的处理流程相同,下面以1个传输块在物理层的处理流程进行说明。
S202、添加CRC码。
其中,基站可根据预设的CRC算法计算传输块的CRC码,计算得到的CRC码为一个指定长度的二进制序列,基站将计算得到的CRC码添加到TB的后面生成校验比特序列。在本发明实施例中,CRC算法包括但不限于CRC-8、CRC-12、CRC-16、CRC-32中的任意一种。
S203、分段。
其中,分段为可选的步骤,基站判断S202生成的校验比特序列的长度是否大于预设的长度阈值(例如:6144位),该长度阈值为S204中编码器能处理的比特位的最大长度,若判断结果为是,基站将S201的传输块分割为多个子块,并且在每子块后面添加各自对应的CRC码后得到码块(Code Block,CB),需要保证每个码块的长度小于上述的长度阈值。若判断结果为否,不执行分段处理步骤。需要说明的是,如果需要分段,每个码块的处理流程都经过S204至S209。下面以不需要分段对S204-S209的过程进行说明。
S204、信道编码。
其中,信道编码为信息比特的传输提供检错和纠错的能力,信道编码的算法包括但不限于Turbo码、极化码、LDPC(Low Density Parity Check Code,低密度奇偶校验码,简称LDPC)。基站对校验比特序列或添加了CRC码的码块进行信道编码后得到信道编码序列。
S205、速率匹配。
其中,速率匹配用于将待传输的数量的数据量和传输资源的数量进行匹配。以S204采用Turbo编码器进行信道编码为例,Turbo编码器在对输入的比特流进行信道编码后并行的输出三个比特流,三个比特流分别为系统比特流、第一校验比特流和第二校验比特流,将三个比特流同时输入行列交织器后存储在环形缓冲器中,系统比特流位于环形缓冲器的头 部,第一校验比特流和第二校验比特流依次排列在系统比特流的后面,比特选择器在环形缓冲器中选择一个起点,并从该起点顺序的选择除指定长度的一行数据作为输入比特流。其中,共有4种起点选择位置,4个位置对应的输入比特流称为4个冗余版本(Redundancy Version,RV),本实施例中将4个冗余版本的输出比特流称为冗余版本序列。
S206、加扰。
其中,基站将扰码序列和S205得到的冗余版本序列进行模二操作得到加扰序列,加扰处理的作用在于将干扰随机化。
S207、调制。
其中,调制用于将加扰序列加载到载波上,调制的方法包括但不限于QAM、APSK、ASK、QPSK中的任意一种,调制阶数可根据需要进行设置,本实施例不作限制。基站对加扰序列进行调制后得到调制符号序列。
S208、资源映射。
其中,资源映射表示将调制符号序列中的调制符号映射到相应的天线端口上和时隙n对应的视频资源块中,资源映射的规则可由通信系统的协议预先规定,资源映射的规则可与Cell ID、子帧号和基站的调度策略相关。
S209、IFFT。
其中,基站通过IFFT将映射到每个符号时间内的各个子载波的QAM符号变换为OFDM符号,然后基站将OFDM符号进行上变频得到射频信号,将射频信号通过无线空口发送给用户设备。
S210、接收OFDM符号。
其中,用户设备在物理层对每个子帧内的数据的处理流程是一致的,用户设备首先接收控制信道中的控制信息,然后通过控制信息在数据信道中获取数据信息。用户设备在时隙n接收基站发送的OFDM符号。
S211、FFT。
其中,用户设备将接收到的OFDM符号进行FFT处理,将OFDM符号变换为调制符号,并根据基站指示的时频资源位置在时隙n对应的时频资源块中搜索到发送给用户设备的调制符号,发送给用户设备的调制符号在本实施例中称为调制符号序列。
S212、解调。
其中,用户设备将FFT处理后得到的调制符号序列进行解调处理,得到加扰序列。
S213、解扰。
其中,用户设备将预设的扰码序列对加扰序列进行模二加操作得到一个冗余版本的冗余版本序列。
S214、解速率匹配。
其中,用户设备将S213得到的冗余版本序列进行解速配匹配得到信道编码序列。
S215、信道解码。
其中,如果传输块在基站侧进行了分段处理,用户设备分别对每个码块进行信道解码。用户设备进行信道解码后得到校验比特序列。
S216、CRC。
其中,用户设备确定校验比特序列中的CRC码和信息比特序列,采用和S202相同的CRC算法计算得到一个CRC码,比较计算得到的CRC码和校验比特序列中的CRC码是否相同,若相同,表明校验通过,用户设备在时隙n+t1上向基站发送ACK;若不相同,表明校验不通过,用户设备在时隙n+t1上向基站发送NACK。需要说明的是,如果TB在基站侧进行了分段,用户设备需要对每个CB进行校验,然后对整个TB再进行校验,两次校验成功后表明校验通过,否则校验不通过。
如果基站在时隙n+t1上接收用户设备发送的ACK,确认传输块成功传输,释放该传输块的HARQ进程;如果基站在时隙n+t1接收用户发送的NACK,确认该传输块未传输成功,基站在时隙n+t1+t2向用户设备重传另一个冗余版本。由此可见,上述数据重传的方法存在的问题是:基站需要接收到用户设备返回的NACK之后再进行重传,一般情况下,需要经过8个时隙的时间长度后再进行重传,重传时延大;另外,基站在接收用户反馈的NACK时需要重传整个传输块,重传的数据量大和占用大量的传输资源。
参见图3,为本发明实施例提供的一种数据发送方法的流程示意图,在本发明实施例中,所述方法包括但不限于以下步骤:
S301、第一调度时间,在第一类型数据被第二类型数据打孔的情况下,保存第一类型数据中被所述第二类型数据占用的第一数据子集以及所述第一数据子集在所述第一类型数据中的打孔位置信息。
其中,第一调度时间的单位可以是时隙或子帧,第一调度时间的长度可以是至少一个时隙或至少一个子帧,时隙和子帧的长度本实施例不作限制。第一类型数据和第二类型数据为两组不同业务类型的数据,第二类型数据的优先级高于第一类型数据,例如:第一类型数据为eMBB数据,第二类型数据为URLLC数据。调度时间对应的时频资源为时频资源块,时频资源块在整个时域上即为多个OFDM符号,多个OFDM符号的时长等于调度时间,时频资源块在整个频域上为多个子载波,一个OFDM符号和一个子载波为时频资源块的RE(Resouce Element,资源粒子,简称RE)。第一调度时间对应的时频资源块为第一时频资源块,在第一类型数据被第二类型数据打孔之前,网络设备已经在第一时频资源块中为第一类型数据分配有时频资源,网络设备可以为基站。网络设备在第一调度时间接收第二类型数据时,在第一类型数据的时频资源上进行打孔,网络设备在第一类型数据的时频资源上打孔的位置本实施例不作限制。打孔表示网络设备将第一类型数据的时频资源中原来分配给第一数据子集的时频资源分配给第二类型数据,因此网络设备能够得知第一数据子集在第一类型数据的哪些RE上进行了打孔的位置,网络设备根据被打孔的RE的位置确定被打孔的第一数据子集和第一数据子集在第一类型数据中的打孔位置信息,网络设备保存第一数据子集和打孔位置信息。由于第一类型数据被第二类型数据打孔,因此在第一调度时间内网络设备只能向用户设备发送第一类型数据中未被第二类型数据打孔的第二数据子集和第二类型数据。
S302、第二调度时间,传输所述第一数据子集、所述打孔位置信息以及打孔指示信息。
具体的,第二调度时间的单位可以是时隙或子帧,第二调度时间的时长为至少一个时隙或至少一个子帧,时隙和子帧的长度本实施例不作限制。其中,第一调度时间和第二调 度时间可属于相邻的两次调度操作,也可以属于不相邻的两次调度操作;例如第一调度时间为时隙n,第二调度时间为时隙n+1;又例如:第一调度时间为时隙n,第二调度时间为时隙n+3。第二调度时间对应的时频资源块为第二时频资源块。网络设备在第二调度时间内传输第一数据子集、打孔位置信息和打孔指示信息,打孔位置信息表示第一数据子集在第一类型数据中的位置,打孔指示信息表示第一数据子集为打孔触发的重传数据。其中,打孔位置信息和打孔指示信息携带在第二调度时间中网络设备下发的DCI中,也可以携带在第二调度时间内网络设备下发的其他信息中,本实施例不作限制。
实施上述实施例,在第一调度时间,待发送的第一类型数据被第二类型数据打孔的情况下,网络设备保存第一类型数据中被第二类型数据打孔的第一数据子集和第一数据子集在第一类型数据中的打孔位置信息,在第二调度时间向用户设备发送第一数据子集、打孔位置信息和打孔指示信息,网络设备不需要等待用户设备的反馈就进行重传操作,减小了重传操作的时延,另外网络设备在重传时不需要重传整个第一类型数据,只需要重传被打孔的第一数据子集,减少了重传的数据量和重传操作对时频资源的占用。
参见图4,为本发明实施例提供的一种数据接收方法的流程示意图,在本发明实施例中,所述方法包括:
S401、第一调度时间,接收并保存第二数据子集。
其中,第一调度时间的单位可以是时隙或子帧,时隙或子帧的长度本实施例不作限制,第一调度时间包括至少一个时隙或至少一个子帧,第一调度时间的长度本实施例不作限制。第一调度时间对应的时频资源为第一时频资源块,用户设备根据网络设备的控制信息在第一时频资源块的指定位置获取第二数据子集,并保存第二数据子集,其中第二数据子集属于网络设备中待发送的第一类型数据中的一部分,第二数据子集为第一类型数据中未被第二类型数据打孔的数据。
S402、第二调度时间,接收第一数据子集、打孔位置信息以及打孔指示信息。
其中,第二调度时间的单位可以是时隙或子帧,时隙或子帧的长度本实施例不作限制,第二调度时间包括至少一个时隙或至少一个子帧,第一调度时间和第二调度时间可以属于相邻的两次调度操作,也可以属于不相邻的两次调度操作。例如:第一调度时间为时隙n,第二调度时间为时隙n+1;又例如,第一调度时间为时隙n,第二调度时间为时隙n+2。第二调度时间对应的时频资源为第二时频资源块,用户设备可根据网络设备的指示在第二时频资源块中解析得到第一数据子集、打孔位置信息和打孔指示信息,其中,打孔位置信息和打孔指示信息可以在第二时频资源块的下行物理控制信道的DCI中。用户设备根据打孔位置信息确定第一数据子集在第一类型数据中的位置,由此可以确定第一数据子集和第二数据子集之间的位置关系。
S403、根据所述打孔位置信息合并所述第一数据子集和所述第二数据子集得到所述第一类型数据。
具体的,用户设备根据打孔位置信息确定第一数据子集和第二数据子集的位置关系,用户设备将第一数据子集和第二数据子集进行合并得到第一类型数据。
实施上述实施例,用户设备在第一调度时间接收和保存第二数据子集,用户设备在第 二调度时间接收第一数据子集、打孔位置信息和打孔指示信息,用户设备根据打孔指示信息获知第一数据子集为打孔触发的重传数据,用户设备根据打孔位置信息合并第一数据子集和第二数据子集得到第一类型数据,这样网络设备不需要等待用户设备反馈就能向用户设备重传数据,减小重传操作的时延,另外用户设备在重传操作时不需要接收全部的eMBB数据,只需要接收属于第一类型数据的一部分的数据,减少了重传操作的数据量和对时频资源的占用。
参见图5,第一类型数据为原始eMBB数据,第二业务类型数据为eMBB数据,第一数据子集为第一eMBB数据,第二数据子集为第二eMBB数据,下面就第一eMBB数据、第二eMBB数据和原始eMBB数据为加扰处理后的加扰序列为例,对本发明实施例的一种eMBB数据的发送方法进行详细的说明。在本实施例中,所述方法包括:
S501、接收eMBB业务的传输块。其中,基站在时隙n接收eMBB业务的传输块。
S502、添加CRC码。
S503、分段。
S504、信道编码。
S505、速率匹配。
S506、加扰。
其中,S501至S506的实现过程和图2b中的S201至S206相同,具体过程可参照S201至S206的描述,此处不再赘述。需要说明的是,基站经过加扰处理后生成的eMBB业务的加扰序列为原始eMBB数据。
S507、调制。
其中,基站将原始eMBB数据进行调制生成调制符号序列,具体的调制方法本实施例不作限制。
S508、资源映射。
其中,时隙n对应的时频资源块为第一时频资源块,基站将eMBB业务的调制符号序列映射到第一时频资源块的RE上,映射方法本实施例不作限制。
例如:参见图1a所示,第一时频资源块在时域上对应7个OFDM符号,在频域上为12个子载波,第一时频资源块包含84个RE,基站将eMBB业务的调制符号序列映射到第一时频资源块中的第3列至第7列的RE上,每个调制符号映射一个RE,eMBB业务的调制符号一共分配有60个RE。其中,第一时频资源块中第1列和第2列的RE分配给控制信道。
S509、接收URLLC业务的传输块。
其中,在时隙n,基站的物理层接收新的URLLC业务的传输块。需要说明的是,基站接收URLLC业务的传输块的步骤可位于S501至S508中任意一个步骤的前面或后面,本实施例不作限制。
S510、添加CRC码。
S511、分段。
S512、信道编码。
S513、速率匹配。
S514、加扰。
其中,S509至S514的实现过程和图2b中的S201至S206的步骤相同,具体实现过程可参照S201至S206的描述,此处不再赘述。需要说明的是,基站在进行加扰处理后生成URLLC业务的加扰比特序列,URLLC业务的加扰比特序列在本实施例中称为URLLC数据。
S515、调制。
其中,基站将URLLC数据进行调制,生成URLLC业务的调制符号序列,调制方法本实施例不作限制。
S516、打孔。
其中,基站在第一时频资源块中原始eMBB数据的时频资源块上进行打孔,打孔表示URLLC数据抢占原始eMBB数据的时频资源块中的时频资源,将原始eMBB数据的时频资源块中用于映射第一eMBB数据的时频资源分配给URLLC数据。
例如,参见图1b,第一时频资源块的第3列至第7列RE已分配给原始eMBB数据的情况下,基站在第3列至第7列的RE上进行打孔,假设基站在第一时频资源块上选择的打孔位置为第4列的RE,基站将第一时频资源块的第4列RE分配给URLLC数据。在本实施例中,由于原始eMBB数据、第一eMBB数据和第二eMBB数据为加扰处理后的比特序列,基站首先确定第一时频资源块中被打孔的RE,基站根据RE和调制符号的对应关系,确定被打孔的eMBB业务的调制符号序列,然后根据调制符号和加扰比特之间的对应关系,确定被打孔的eMBB业务的调制符号序列对应的加扰比特序列(即第一eMBB数据),基站保存第一eMBB数据和打孔位置信息。在本实施例中,打孔位置信息可以用第一eMBB数据在原始eMBB数据中的起始位置和长度来表示。其中,第一eMBB数据可以为原始eMBB数据中一段连续的序列,或者第一eMBB数据为原始eMBB数据中多段连续的序列,本实施例不作限制。
参见图7a所示,图7a中第1行的数据为未打孔的原始eMBB数据,第2行的数据为在时隙n接收到的URLLC数据,基站根据第一视频资源块上的打孔图样确定URLLC数据在原始eMBB数据的打孔位置为虚线中间的比特位,第一eMBB数据为原始eMBB数据中第6至第15个比特位,基站确定第一eMBB数据为一段连续的序列,基站采用第一eMBB数据的起始位置和长度来表示打孔位置信息,本实施例中第一eMBB数据的起始位置为6,长度为10。原始eMBB数据中未被第一eMBB数据打孔的部分为第二eMBB数据。图7a中第4行数据为原始eMBB数据打孔后得到的URLLC数据和第二eMBB数据的分布示意图。
参见图7b所示,第一eMBB数据为两段连续的序列,基站采用每段序列的起始位置和每段序列的长度来表示打孔位置信息,本实施例中,第一eMBB的第1段序列的起始位置为6,长度为10;第2段序列的起始位置为22,长度为4。图7a中第4行数据为原始eMBB数据打孔后得到的URLLC数据和第二eMBB数据的分布示意图。
S517、IFFT。
其中,基站根据URLLC数据和第二eMBB数据得到第一OFDM符号,将第一OFDM 符号进行上变频生成射频信号,基站向用户设备发送射频信号。
S518、存储第一eMBB数据和打孔位置信息。
其中,基站可构建一个二进制序列A,用二进制序列A来表示第一eMBB数据和打孔位置信息。以图7a所示,第一eMBB数据为一段连续的序列,基站存储第一eMBB数据和打孔位置信息表示为A={d1d2d3d4d5d6d7d8d9d10,000000110,00001010},其中d1至d9表示第一eMBB数据的比特位,00000110表示第一eMBB数据的起始位置为原始eMBB数据中的第6个比特位,00001010表示第一eMBB数据的长度为10。
以图7b所示,第一eMBB数据为两段连续的序列,基站存储第一eMBB数据和打孔位置信息的二进制信息表示为A={d1d2d3d4d5d6d7d8d9d10,000000110,00001010;e1e2e3e4,00010110,00000100},其中d1至d9表示第1段序列的比特位,00000110表示第1段序列的起始位置为原始eMBB数据中的第6个比特位,00001010表示第1段序列的长度为10;e1至e4表示第2段序列的比特位,00010110表示第2段序列的起始位置为原始eMBB数据中的第22个比特位,00000100表示第2段序列的长度为4。需要说明的是,用于表示起始位置和长度的比特位的长度并不限于本实施例的8位,具体的位数可根据需要进行设置。
可选的,第一eMBB数据和打孔位置信息并不限于以上的方法,也可以分开进行存储,打孔位置信息携带在下行控制信道的DCI或MAC-CE中。
S519、获取第一eMBB数据。
其中,在时隙n+t上,基站获取预先保存的第一eMBB数据和打孔位置信息,t为大于0的整数。
S520、添加CRC码。
其中,添加CRC码为可选的步骤,为第一eMBB数据添加CRC码增加数据的检错和纠错能力。
S521、分段。
S522、信道编码。
其中,信道编码为可选的步骤,信道编码用于提高数据的抗干扰能力。
S523、速率匹配。
S524、加扰。
S525、调制。
S526、资源映射。
S527、IFFT。
其中,基站经过IFFT处理后得到第二OFDM符号,将第二OFDM符号进行上变频处理后得到射频信号,向用户设备发送射频信号。值得说明是,用户在时隙n+t还需要向用户设备发送打孔指示信息,打孔指示信息可携带在下行物理控制信道的DCI,或者携带在MAC-CE中,或者携带在时隙n+t的其他消息中,本实施例不作限制。打孔指示信息表示第一eMBB数据为打孔触发的重传数据。
其中,S521和S527的实现过程可参照图2b的S202至S207的描述。基站将第一eMBB数据进行添加CRC码和信道编码的处理,提高了传输第一eMBB数据的可靠性。
实施上述实施例,在时隙n,待发送的原始加扰序列的情况下,基站保存原始eMBB数据中被打孔的加扰序列和被打孔的加扰序列在原始加扰序列中的打孔位置信息,在时隙n+t向用户设备发送被打孔的加扰序列、打孔位置信息和打孔指示信息,基站不需要等待用户设备的反馈就进行重传操作,减小了重传操作的时延,另外基站在重传时不需要重传整个原始加扰序列,只需要重传被打孔的加扰序列,减少了重传的数据量和重传操作对时频资源的占用。
相应的,参见图6,图6为图5中用户设备接收eMBB数据的处理过程,在本发明实施例中,接收eMBB数据的过程包括但不限于:
S601、接收第一OFDM符号。
其中,用户设备在时隙n接收基站发送的第一OFDM符号,第一OFDM符号的生成过程参照图5所示。
S602、FFT。
S603、解调。
其中,解调处理后生成的加扰序列,此处的加扰序列为第二eMBB数据。
S604、解扰。
S605、解速率匹配。
S606、信道解码。
其中,S601至S606的实现过程和图2b中的S210至S215相同,具体过程可参照S210至S215的描述,此处不再赘述。
S607、CRC。
其中,信道解码后得到校验比特序列,校验比特序列包括信息比特和CRC码,CRC码是原始eMBB数据对应的比特序列,而此处的信息比特是第二eMBB数据对应的比特序列,根据当前的信息比特计算得到的CRC码和校验比特序列中携带的CRC码不相同,S607中CRC的结果为不通过。
S608、保存第二eMBB数据。
其中,用户设备可以在S603生成加扰序列后保存加扰序列,此时的加扰序列即为第二eMBB数据。需要说明的是,用户设备若在S607中CRC的校验结果为通过的情况下,删除保存的第二eMBB数据。
S609、接收第二OFDM符号。
其中,基站在时隙n+t接收第二OFDM符号,第二OFDM符号的生成过程可参照图5所示的过程。
S610、FFT。
S611、解调。
S612、解扰。
S613、解速率匹配。
S614、信道解码。
S615、去除CRC码。
其中,取出CRC码后得到第一eMBB数据。
S616、数据合并。
其中,在时隙n+t中获取基站发送的打孔位置信息和打孔指示信息,用户设备根据打孔指示信息确定第一eMBB数据为打孔触发的重传数据的情况下,获取时隙n+t中传输的HARQ进程号,其中,HARQ进程号可携带在时隙n+t传输的DCI中。基站根据时隙n+t获得的HARQ进程号确定初传操作位于时隙n,时隙n和时隙n+t具有相同的HARQ进程号。用户设备获取时隙n中保存的第二eMBB数据,根据打孔位置信息合并第一eMBB数据和第二eMBB数据得到原始eMBB数据,原始eMBB数据为加扰序列。
S617、解扰。
其中,基站将加扰序列进行解扰处理得到冗余版本序列。
S618、解速率匹配。
S619、信道解码。
S620、CRC校验。
需要说明的是,S617至S620的实现过程可参照图2b的S213至S216,此处不再赘述。
实施上述实施例,用户设备在时隙n接收和保存原始加扰序列中未被打孔的加扰序列,用户设备在时隙n+t接收被打孔的加扰序列、打孔位置信息和打孔指示信息,用户设备根据打孔指示信息获知时隙n+t接收到的数据为打孔触发的重传数据,用户设备根据打孔位置信息合并打孔的加扰序列和未打孔的加扰序列得到原始加扰序列,这样基站不需要等待用户设备反馈就能向用户设备重传数据,减小重传操作的时延,另外用户设备在重传操作时不需要接收全部的原始加扰序列,只需要接收属于原始加扰序列的一部分的数据,减少了重传操作的数据量和对时频资源的占用。
参见图8,第一类型数据为原始eMBB数据,第二业务类型数据为eMBB数据,第一数据子集为第一eMBB数据,第二数据子集为第二eMBB数据,下面以第一eMBB数据、第二eMBB数据和原始eMBB数据为调制符号对本方实施例的一种eMBB数据的发送方法进行说明。
S801、接收eMBB业务的传输块。
S802、添加CRC码。
S803、分段。
S804、信道编码。
S805、速率匹配。
S806、加扰。
S807、调制。
其中,S801至S807的实现过程可参照图2b中S201至S207的描述。调制处理后生成调制符号序列,此时的调制符号序列为原始eMBB数据。
S808、资源映射。
其中,时隙n对应的时频资源块为第一时频资源块,基站将原始eMBB数据映射到第一时频资源块的RE上,映射的方法本实施例不作限制。
例如:参见1a所示,第一时频资源块在时隙上对应7个OFDM符号,在频域上对应12个子载波,基站将原始eMBB数据映射到第一时频资源块中的第3列至第7列的RE上,原始eMBB数据中每个调制符号映射一个RE,原始eMBB数据一共分配有60个RE。其中,第一时频资源块中第1列和第2列的RE分配给控制信道使用。
S809、接收URLLC业务的传输块。
其中,在时隙n,基站的物理层接收新的URLLC业务的传输块。需要说明的是,基站接收URLLC业务的传输块的步骤可位于S801至S808中任意一个步骤的前面或后面,本实施例不作限制。
S810、添加CRC码。
S811、分段。
S812、信道编码。
S813、速率匹配。
S814、加扰。
S815、调制。
其中,S810至S815的实现过程和图2b中S201至S206相同,具体实现过程可参照S201至S206的描述。需要说明的是,基站在进行调制处理后生成URLLC业务的调制符号序列,URLLC业务的调制符号序列在本实施例中称为URLLC数据。
S816、打孔。
其中,基站在第一时频资块中原始eMBB数据的时频资源块上进行打孔,打孔表示URLLC数据抢占原始eMBB数据的时频资源块中的时频资源,将原始eMBB数据的时频资源块中用于映射第一eMBB数据的时频资源分配给URLLC数据。
例如,参见图1b所示,基站在时隙n上接收URLLC数据的情况下,基站确定第一时频资源块中原始eMBB数据映射的时频资源为第3列至第7列的RE,基站在第3列至第7列的RE上进行打孔,假设打孔位置为第4列的RE,基站将第4列的RE分配给URLLC数据。基站确定第一时频资源块中被打孔的RE,根据RE和调制符号的映射关系,确定原始eMBB数据中被URLLC数据打孔的第一eMBB数据。
S817、IFFT。
其中,基站发送第一OFDM符号,第一OFDM符号由URLLC数据和第二eMBB数据生成的。
S818、存储第一eMBB数据和打孔位置信息。
在一种可能的实现方式中,第一eMBB数据为调制符号,打孔位置信息表示第一eMBB数据在第一调度时间对应的时频资源块中的第一映射图样。例如:基站存储图1b的第一eMBB数据在时频资源块中的第一映射图样。
S819、资源映射。
其中,时隙n+t对应的时频资源块为第二时频资源块,基站将第一eMBB数据映射在第二时频资源块上,基站在进行资源映射时可先时域后频域的规则进行映射,基站在第二时频资源块上的映射位置本实施例不作限制。
例如,参见图10所示,第一eMBB数据在时隙n+t对应的时频资源块中的映射位置为 第3列至第7列以及第8行至第9行组成的RE。
需要说明的是,在第一eMBB数据在时隙n对应的时频资源块中的第一映射图样和第一eMBB数据在时隙n+t对应的时频资源块中的第二映射图样相同的情况下,基站在时隙n+t中向用户设备通知的打孔位置信息可以是第一映射图样或第二映射图样。
另外,打孔位置信息还可以表示第一eMBB数据在所述第二调度时间对应的时频资源块中的转换规则;其中,转换规则表示所述第一映射图样和第一eMBB数据在所述第二调度时间对应的时频资源块中的第二映射图样之间的对应关系。
示例性的,转换规则表示图1b的第一映射图样和图10的第二映射图样之间的对应关系。
S820、IFFT。
其中,基站将第一eMBB数据经过IFFT后得到第二OFDM符号,将第二OFDM符号进行上变频得到射频信号,将射频信号发送给用户设备。
实施上述实施例,在时隙n,待发送的原始调制符号序列的情况下,基站保存原始eMBB数据中被打孔的调制符号序列和被打孔的调制符号序列在原始调制符号序列中的打孔位置信息,在时隙n+t向用户设备发送被打孔的调制符号序列、打孔位置信息和打孔指示信息,基站不需要等待用户设备的反馈就进行重传操作,减小了重传操作的时延,另外基站在重传时不需要重传整个原始调制符号序列,只需要重传被打孔的调制符号序列,减少了重传的数据量和重传操作对时频资源的占用。
参见图9,为图8对应的用户设备接收eMBB数据的流程示意图,在本发明实施例中,所述方法包括但不限于以下步骤:
S901、接收第一OFDM符号。
其中,用户设备在时隙n上接收第一OFDM符号,第一OFDM符号的生成过程可参照图8中的描述。
S902、FFT。
S903、解调。
S904、解扰。
S905、解速率匹配。
S906、信道解码。
其中,S901至S906的实现过程和图2b中的S210至S215相同,具体过程可参照S210至S215的描述,此处不再赘述。
S907、CRC。
其中,信道解码后得到校验比特序列,校验比特序列包含信息比特序列和校验码,校验码是原始eMBB数据对应的信息比特序列生成的,而此处的信息比特序列是第二eMBB数据对应的信息比特序列,因此根据当前的信息比特序列计算得到的CRC码和校验比特序列中携带的CRC码不相同,S907中CRC的结果为不通过。
S908、存储第二eMBB数据。
其中,用户设备可以在生成调制符号序列后存储第二eMBB数据。需要说明的是,在 S907中CRC的结果为通过的情况下,用户设备删除存储的第二eMBB数据。
S909、接收第二OFDM符号。
其中,用户设备在时隙n+t接收第二OFDM符号,第二OFDM符号的生成过程可参照图8所示的过程。
S910、FFT。
其中,用户设备经过FFT后得到第一eMBB数据,第一eMBB数据为调制符号序列。
S911、获取第二eMBB数据。
其中,用户设备在时隙n+t中接收基站发送的打孔指示信息的情况下,确定第一eMBB数据为打孔触发的重传数据,获取时隙n中预先保存的第二eMBB数据,需要说明的是,基站可根据时隙n+t对应的HARQ进程号确定具有相同HARQ进程号的实现n。其中,打孔指示信息可携带在下行物理信道的DCI或MAC-CE中,也可以携带在时隙n+t的其他消息中,本实施例不作限制。
在一种可能的实现方式中,打孔位置信息表示第一eMBB数据在时隙n的第一时频资源块中的第一映射图样。
在一种可能的实现方式中,打孔位置信息表示第一映射图样和第二映射图样之间的转换规则,第二映射图样表示第二eMBB数据在时隙n+t的第二时频资源块中的映射位置,用户设备可根据该转换规则和第二映射图样得到第一eMBB数据在时隙n的第一时频资源块中的第一映射图样。
需要说明的是,在打孔位置信息表示转换规则的情况下,910之后还包括反映射的步骤,反映射用于根据第二映射图样和转换规则得到第一映射图样。
其中,打孔位置信息可携带在时隙n+t的DCI或MAC-CE中,或其他消息中,本实施例不作限制。
S912、数据合并。
其中,用户设备在时隙n+t上接收基站发送的打孔位置信息,根据打孔位置信息确定第一eMBB数据和第二eMBB数据的位置关系,将第一eMBB数据和第二eMBB数据进行合并得到原始eMBB数据。
S913、解调。
S914、解扰。
S915、解速率匹配。
S916、信道解码。
S917、CRC。
其中,S913至S917可参照图2b中S212至S216的描述,此处不再赘述。
实施上述实施例,用户设备在时隙n接收和保存原始调制符号序列中未被打孔的调制符号序列,用户设备在时隙n+t接收被打孔的调制符号序列、打孔位置信息和打孔指示信息,用户设备根据打孔指示信息获知时隙n+t接收到的数据为打孔触发的重传数据,用户设备根据打孔位置信息合并打孔的调制符号序列和未打孔的调制符号序列得到原始调制符号序列,这样基站不需要等待用户设备反馈就能向用户设备重传数据,减小重传操作的时延,另外用户设备在重传操作时不需要接收全部的原始调制符号序列,只需要接收属于原 始调制符号序列的一部分的数据,减少了重传操作的数据量和对时频资源的占用。
需要说明的是,图11所示的数据发送装置11可以实现图3所示实施例的网络设备侧,其中,保存单元1101用于执行步骤S301;传输单元1102用于执行步骤S302。所述数据发送装置11可以为基站,所述数据发送装置11也可以为实现相关功能的专用集成电路(英文:Application Specific Integrated Circuit,简称:ASIC)或者数字信号处理器(英文:Digital Signal Processor,简称:DSP)或者芯片。
需要说明的是,图12所示的数据接收装置12可以实现图4所示实施例的用户设备侧,其中,保存单元1201用于执行步骤S401;接收单元1202用于执行步骤S402;合并单元1203用于执行步骤S403。所述数据接收装置12可以为用户设备,所述数据接收装置12也可以为实现相关功能的现场可编程门阵列(field-programmable gate array,FPGA),专用集成芯片(application specific integrated circuit,ASIC),系统芯片(system on chip,SoC),中央处理器(central processor unit,CPU),网络处理器(network processor,NP),数字信号处理电路(digital signal processor,DSP),微控制器(micro controller unit,MCU),还可以采用可编程控制器(programmable logic device,PLD)或其他集成芯片。
如图13所示,本发明实施例还提供了一种装置13。
该装置13为网络设备,比如基站时,包括:
存储器1303,用于存储程序和数据;其中,该存储器可以为随机访问内存(英文:Random Access Memory,简称:RAM)或者只读内存(英文:Read Only Memory,简称:ROM)或者闪存,其中存储器1303可以位于单独位于通信设备内,也可以位于处理器1301的内部。存储器1303,用于保存第一类型数据中被所述第二类型数据占用的第一数据子集以及所述第一数据子集在所述第一类型数据中的打孔位置信息。
收发器1302,可以作为单独的芯片,也可以为处理器1301内的收发电路或者作为输入输出接口。收发器1302,用于在第一调度时间接收第一类型数据和第二类型数据,以及第二调度时间,传输所述第一数据子集、所述打孔位置信息以及打孔指示信息;其中,所述打孔指示信息用于表示所述第一数据子集为打孔触发的重传数据。
处理器1301,用于执行所述存储器存储的所述程序,当所述程序被执行时,处理器1301用于第一调度时间,在第一类型数据被第二类型数据打孔的情况下,指示存储器1302保存第一类型数据中被所述第二类型数据占用的第一数据子集以及所述第一数据子集在所述第一类型数据中的打孔位置信息。收发器1303、存储器1302、处理器1301之间可选地通过总线3024连接。
当网络设备13为芯片时,可以为实现相关功能的现场可编程门阵列(field-programmable gate array,FPGA),专用集成芯片(application specific integrated circuit,ASIC),系统芯片(system on chip,SoC),中央处理器(central processor unit,CPU),网络处理器(network processor,NP),数字信号处理电路(digital signal processor,DSP),微控制器(micro controller unit,MCU),还可以采用可编程控制器(programmable logic device,PLD)或其他集成芯片。
这些芯片可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时,可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包 括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带),光介质(例如,DVD)、或者半导体介质(例如固态硬盘(solid state disk,SSD))等。
如图14所示,本发明实施例还提供了一种装置14。
当该装置14为用户设备时,包括:
收发器1403,可以作为单独的芯片,也可以为处理器1401内的收发电路或者作为输入输出接口。收发器1401,第一调度时间,接收第二数据子集;以及在第二调度时间,接收第一数据子集、打孔位置信息以及打孔指示信息;其中,所述打孔指示信息用于指示所述第一数据子集是打孔触发的重传数据,所述打孔位置信息表示所述第一数据子集在第一类型数据中的位置。
存储器1402,用于存储程序和数据;其中,该存储器可以为RAM或者ROM或者闪存,其中,存储器可以位于单独位于通信设备内,也可以位于处理器4042的内部。存储器1402,用于在所述第一调度时间保存所述第二数据子集。
处理器1401,用于执行所述存储器存储的所述程序。处理器1401,用于根据所述打孔位置信息合并所述第一数据子集和所述第二数据子集得到所述第一类型数据。
收发器1403、存储器1402、处理器1401之间可选地通过总线连接。
当该装置14为芯片时,可以为实现相关功能的现场可编程门阵列(field-programmable gate array,FPGA),专用集成芯片(application specific integrated circuit,ASIC),系统芯片(system on chip,SoC),中央处理器(central processor unit,CPU),网络处理器(network processor,NP),数字信号处理电路(digital signal processor,DSP),微控制器(micro controller unit,MCU),还可以采用可编程控制器(programmable logic device,PLD)或其他集成芯片。
这些芯片可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时,可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机 能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如,软盘、硬盘、磁带),光介质(例如,DVD)、或者半导体介质(例如固态硬盘(solid state disk,SSD))等。
本发明实施例还提供一个通信系统,包括上述网络设备实施例中的网络设备和用户设备。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
各方法实施例为了方便简洁,也可以互为参考引用,不再赘述。在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应所述以权利要求的保护范围为准。

Claims (38)

  1. 一种数据发送方法,其特征在于,包括:
    第一调度时间,在第一类型数据被第二类型数据打孔的情况下,保存第一类型数据中被所述第二类型数据占用的第一数据子集以及所述第一数据子集在所述第一类型数据中的打孔位置信息;
    第二调度时间,传输所述第一数据子集、所述打孔位置信息以及打孔指示信息;其中,所述打孔指示信息用于表示所述第一数据子集为打孔触发的重传数据。
  2. 如权利要求1所述的方法,其特征在于,所述第一数据子集和所述第一类型数据为加扰处理后得到的加扰序列。
  3. 如权利要求1所述的方法,其特征在于,所述第一数据子集和所述第一类型数据的为调制处理后得到的调制符号序列。
  4. 如权利要求2所述的方法,其特征在于,所述打孔位置信息包括所述第一数据子集在所述第一类型数据中的起始位置信息、和/或所述第一数据子集的长度信息。
  5. 如权利要求3所述的方法,其特征在于,所述打孔位置信息表示:
    所述第一数据子集在所述第一调度时间对应的时频资源块中的第一映射图样;或
    所述第一数据子集在所述第二调度时间对应的时频资源块中的转换规则;其中,所述转换规则表示所述第一映射图样和所述第一数据子集在所述第二调度时间对应的时频资源块中的第二映射图样之间的对应关系。
  6. 如权利要求2或4所述的方法,其特征在于,所述传输所述第一数据子集包括:
    根据CRC算法计算所述第一数据子集的循环冗余校验CRC码;
    将所述CRC码添加到所述第一数据子集的后面生成校验比特序列;
    将所述校验比特序列进行分段处理得到码块;
    为每个码块添加对应的CRC码;
    将添加CRC码后的码块进行信道编码处理得到信道编码序列;
    将所述信道编码序列进行速率匹配得到冗余版本序列;
    将所述冗余版本序列进行加扰处理得到加扰序列;
    将所述加扰序列进行调制处理后得到调制符号序列;
    将所述调制符号序列进行资源映射和IFFT处理后得到OFDM符号;
    将所述OFDM符号进行上变频处理得到射频信号;
    向终端发送所述射频信号。
  7. 如权利要求3或5所述的方法,其特征在于,所述传输第一数据子集包括:
    将所述第一数据子集进行资源映射和IFFT处理后得到OFDM符号;
    将所述OFDM符号进行上变频处理得到射频信号;
    向终端发送所述射频信号。
  8. 如权利要求1-7任意一项所述的方法,其特征在于,所述打孔位置信息通过物理下行控制信道中的下行控制信息DCI或物理下行共享信道PDSCH传输给终端。
  9. 如权利要求1-7任意一项所述的方法,其特征在于,所述打孔指示信息通过物理下行控制信道中的下行控制信息DCI或媒体接入控制控制元素MAC-CE发送给终端。
  10. 一种数据接收方法,其特征在于,包括:
    第一调度时间,接收并保存第二数据子集,所述第二数据子集是第一类型数据的一部分;
    第二调度时间,接收第一数据子集、打孔位置信息以及打孔指示信息;其中,所述打孔指示信息用于指示所述第一数据子集是所述第一类型数据被打孔触发的重传数据,所述打孔位置信息表示所述第一数据子集在第一类型数据中的位置;
    根据所述打孔位置信息合并所述第一数据子集和所述第二数据子集,得到所述第一类型数据。
  11. 如权利要求10所述的方法,其特征在于,所述第一数据子集、所述第二数据子集和所述第一类型数据为解调处理后的加扰序列。
  12. 如权利要求10所述的方法,其特征在于,所述第一数据子集、所述第二数据子集和所述第一类型数据为快速傅里叶变换FFT处理后的调制符号序列。
  13. 如权利要求11所述的方法,其特征在于,所述打孔位置信息包括所述第一数据子集在所述第一类型数据中的起始位置信息,和/或所述第一数据子集的长度信息。
  14. 如权利要求12所述的方法,其特征在于,所述打孔位置信息表示:
    所述第一数据子集在所述第一调度时间对应的时频资源块中的第一映射图样;或
    所述第一数据子集在所述第二调度时间对应的时频资源块中的转换规则;其中,所述转换规则表示所述第一映射图样和所述第一数据子集在所述第二调度时间对应的时频资源块中的第二映射图样之间的对应关系。
  15. 如权利要求11或13所述的方法,其特征在于,所述接收第一数据子集包括:
    接收OFDM符号;
    将所述OFDM符号进行FFT处理得到调制符号序列;
    将调制符号序列进行解调处理得到加扰序列;
    将所述加扰序列进行解扰处理得到第一冗余版本序列;
    将第一冗余版本序列进行解速率匹配处理得到第一信道编码序列;
    将所述第一信道编码序列进行信道解码处理得到第一校验比特序列;
    去除所述第一校验比特序列中的CRC码得到所述第一数据子集。
  16. 如权利要求15所述的方法,其特征在于,还包括:
    将所述第一类型数据进行解扰处理得到第二冗余版本序列;
    将所述第二冗余版本序列进行解速率匹配得到第二信道编码序列;
    将所述第二信道编码序列进行信道解码处理得到第二校验比特序列;
    根据所述第二校验比特序列中的CRC码判断所述校验比特序列中的信息比特序列是否正确。
  17. 如权利要求12或14所述的方法,其特征在于,还包括:
    将所述第一类型数据进行解调处理得到调制符号序列;
    将所述调制符号序列进行解扰处理得到冗余版本序列;
    将冗余版本序列进行解速率匹配得到信道编码序列;
    将所述信道编码序列进行信道解码处理得到校验比特序列;
    根据所述校验比特序列中的CRC码进行CRC处理。
  18. 如权利要求10-17任意一项所述的方法,其特征在于,所述打孔位置信息通过物理下行控制信道中的下行控制信息DCI或物理下行共享信道接收的。
  19. 如权利要求10-17任意一项所述的方法,其特征在于,所述打孔指示信息通过物理下行控制信道中的下行控制信息DCI或媒体接入控制控制元素MAC-CE接收的。
  20. 一种网络设备,其特征在于,包括:处理器、存储器和收发器,
    所述处理器,用于第一调度时间,在第一类型数据被第二类型数据打孔的情况下,指示所述存储器保存第一类型数据中被所述第二类型数据占用的第一数据子集以及所述第一数据子集在所述第一类型数据中的打孔位置信息;
    所述收发器,用于第二调度时间,传输所述第一数据子集、所述打孔位置信息以及打孔指示信息;其中,所述打孔指示信息用于表示所述第一数据子集为打孔触发的重传数据。
  21. 如权利要求20所述的网络设备,其特征在于,所述第一数据子集和所述第一类型数据为加扰处理后得到的加扰序列。
  22. 如权利要求20所述的网络设备,其特征在于,所述第一数据子集和所述第一类型数据的为调制处理后得到的调制符号序列。
  23. 如权利要求21所述的网络设备,其特征在于,所述打孔位置信息包括所述第一数据子集在所述第一类型数据中的起始位置信息和/或所述第一数据子集的长度信息。
  24. 如权利要求22所述的网络设备,其特征在于,所述打孔位置信息表示:
    所述第一数据子集在所述第一调度时间对应的时频资源块中的第一映射图样;或
    所述第一数据子集在所述第二调度时间对应的时频资源块中的转换规则;其中,所述转换规则表示所述第一映射图样和所述第一数据子集在所述第二调度时间对应的时频资源块中的第二映射图样之间的对应关系。
  25. 如权利要求21或23所述的网络设备,其特征在于,所述处理器还用于:
    根据CRC算法计算所述第一数据子集的循环冗余校验CRC码;
    将所述CRC码添加到所述第一数据子集的后面生成校验比特序列;
    将所述校验比特序列进行分段处理得到码块;
    为每个码块添加对应的CRC码;
    将添加CRC码后的码块进行信道编码处理得到信道编码序列;
    将所述信道编码序列进行速率匹配得到冗余版本序列;
    将所述冗余版本序列进行加扰处理得到加扰序列;
    将所述加扰序列进行调制处理后得到调制符号序列;
    将所述调制符号序列进行资源映射和IFFT处理后得到OFDM符号;
    将所述OFDM符号进行上变频处理得到射频信号;
    指示所述收发器向终端发送所述射频信号。
  26. 如权利要求22或24所述的网络设备,其特征在于,所述处理器还用于:
    将所述第一数据子集进行资源映射和IFFT处理后得到OFDM符号;
    将所述OFDM符号进行上变频处理得到射频信号;
    指示所述收发器向终端发送所述射频信号。
  27. 如权利要求20-26任意一项所述的网络设备,其特征在于,所述打孔位置信息通过物理下行控制信道中的下行控制信息DCI或物理下行共享信道PDSCH传输给终端。
  28. 如权利要求20-26任意一项所述的网络设备,其特征在于,所述打孔指示信息通过物理下行控制信道中的下行控制信息DCI或媒体接入控制控制元素MAC-CE发送给终端。
  29. 一种终端,其特征在于,包括处理器、存储器和收发器,
    所述收发器,用于第一调度时间,接收第二数据子集,其中所述第二数据子集是第一类型数据的一部分;
    所述存储器,用于在所述第一调度时间保存所述第二数据子集;
    所述收发器,还用于在第二调度时间,接收第一数据子集、打孔位置信息以及打孔指示信息;其中,所述打孔指示信息用于指示所述第一数据子集是打孔触发的重传数据,所述打孔位置信息表示所述第一数据子集在第一类型数据中的位置;
    所述处理器,用于根据所述打孔位置信息合并所述第一数据子集和所述第二数据子集得到所述第一类型数据。
  30. 如权利要求29所述的用户设备,其特征在于,所述第一数据子集、所述第二数据子集和所述第一类型数据为解调处理后的加扰序列。
  31. 如权利要求29所述的用户设备,其特征在于,所述第一数据子集、所述第二数据子集和所述第一类型数据为快速傅里叶变换FFT处理后的调制符号序列。
  32. 如权利要求30所述的用户设备,其特征在于,所述打孔位置信息表示所述第一数据子集在所述第一类型数据中的起始位置,以及所述第一数据子集的长度。
  33. 如权利要求31所述的用户设备,其特征在于,所述打孔位置信息表示:
    所述第一数据子集在所述第一调度时间对应的时频资源块中的第一映射图样;或
    所述第一数据子集在所述第二调度时间对应的时频资源块中的转换规则;其中,所述转换规则表示所述第一映射图样和所述第一数据子集在所述第二调度时间对应的时频资源块中的第二映射图样之间的对应关系。
  34. 如权利要求30或32所述的用户设备,其特征在于,
    所述收发器,还用于接收OFDM符号;
    所述处理器,还用于将所述OFDM符号进行FFT处理得到调制符号序列;
    将调制符号序列进行解调处理得到加扰序列;
    将所述加扰序列进行解扰处理得到第一冗余版本序列;
    将第一冗余版本序列进行解速率匹配处理得到第一信道编码序列;
    将所述第一信道编码序列进行信道解码处理得到第一校验比特序列;
    去除所述第一校验比特序列中的CRC码得到所述第一数据子集。
  35. 如权利要求34所述的用户设备,其特征在于,所述处理器还用于:
    将所述第一类型数据进行解扰处理得到第二冗余版本序列;
    将所述第二冗余版本序列进行解速率匹配得到第二信道编码序列;
    将所述第二信道编码序列进行信道解码处理得到第二校验比特序列;
    根据所述第二校验比特序列中的CRC码判断所述校验比特序列中的信息比特序列是否正确。
  36. 如权利要求31或33所述的用户设备,其特征在于,所述处理器还用于:
    将所述第一类型数据进行解调处理得到调制符号序列;
    将所述调制符号序列进行解扰处理得到冗余版本序列;
    将冗余版本序列进行解速率匹配得到信道编码序列;
    将所述信道编码序列进行信道解码处理得到校验比特序列;
    根据所述校验比特序列中的CRC码进行CRC处理。
  37. 如权利要求29-26任意一项所述的用户设备,其特征在于,所述打孔位置信息通过物理下行控制信道中的下行控制信息DCI或物理下行共享信道PDSCH接收的。
  38. 如权利要求29-36任意一项所述的用户设备,其特征在于,所述打孔指示信息通过物理下行控制信道中的下行控制信息DCI或媒体接入控制控制元素MAC-CE接收的。
PCT/CN2018/080503 2017-04-12 2018-03-26 数据发送方法、接收方法和相关设备 WO2018188475A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP18783741.4A EP3576478B1 (en) 2017-04-12 2018-03-26 Data sending method, receiving method and related equipment
BR112019021530-1A BR112019021530A2 (pt) 2017-04-12 2018-03-26 Método de envio de dados, método de recebimento de dados e dispositivo relacionado
US16/598,912 US11374687B2 (en) 2017-04-12 2019-10-10 Data sending method, data receiving method, and related device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710237464.8 2017-04-12
CN201710237464.8A CN108696936B (zh) 2017-04-12 2017-04-12 数据发送方法、接收方法和相关设备

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US16/598,912 Continuation US11374687B2 (en) 2017-04-12 2019-10-10 Data sending method, data receiving method, and related device

Publications (1)

Publication Number Publication Date
WO2018188475A1 true WO2018188475A1 (zh) 2018-10-18

Family

ID=63793610

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/080503 WO2018188475A1 (zh) 2017-04-12 2018-03-26 数据发送方法、接收方法和相关设备

Country Status (5)

Country Link
US (1) US11374687B2 (zh)
EP (1) EP3576478B1 (zh)
CN (1) CN108696936B (zh)
BR (1) BR112019021530A2 (zh)
WO (1) WO2018188475A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113839737A (zh) * 2020-06-23 2021-12-24 中兴通讯股份有限公司 数据处理方法及装置、存储介质、电子装置

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11678333B2 (en) * 2017-11-03 2023-06-13 Qualcomm Incorporated Methods and apparatus for bandwidth part enhancement
CN111083782B (zh) * 2018-10-19 2023-09-08 荣耀终端有限公司 一种被用于无线通信的用户设备、基站中的方法和装置
CN111107632B (zh) * 2018-10-26 2022-08-05 大唐移动通信设备有限公司 一种数据传输方法及其装置
CN112953674B (zh) * 2019-11-26 2022-10-11 上海华为技术有限公司 一种速率匹配方法、网络设备以及用户设备
WO2021142756A1 (zh) * 2020-01-17 2021-07-22 华为技术有限公司 一种信号处理方法和相关装置
US11374686B2 (en) * 2020-02-04 2022-06-28 Qualcomm Incorporated Parity check bits for non-coherent communication
CN112422243B (zh) * 2020-11-22 2021-08-13 广州技象科技有限公司 基于进程优化的数据传输方法和装置
CN112737736B (zh) * 2021-04-02 2021-07-09 苏州华兴源创科技股份有限公司 信道编码中的数据处理方法、计算机设备及存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160270045A1 (en) * 2015-03-15 2016-09-15 Qualcomm Incorporated Subframe structure with embedded control signaling
CN106413105A (zh) * 2015-07-30 2017-02-15 中国移动通信集团公司 一种资源传输的指示方法、装置、网络侧设备及终端
WO2017056003A2 (en) * 2015-10-01 2017-04-06 Nokia Technologies Oy Apparatus and method for puncturing data transmissions due to higher priority data
CN107295682A (zh) * 2016-04-01 2017-10-24 中国移动通信有限公司研究院 一种下行数据传输及检测方法、装置、相关设备和系统

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7668188B2 (en) * 2006-02-14 2010-02-23 Broadcom Corporation Method and system for HSDPA bit level processor engine
WO2013031118A1 (ja) * 2011-08-30 2013-03-07 パナソニック株式会社 送信装置及び送信方法
WO2017084903A1 (en) * 2015-11-19 2017-05-26 Sony Corporation Telecommunications apparatus and methods
EP3440789B1 (en) * 2016-04-08 2020-06-03 IDAC Holdings, Inc. Phy layer multiplexing of different types of traffic in 5g systems
WO2017184850A1 (en) * 2016-04-20 2017-10-26 Convida Wireless, Llc Physical channels in new radio
EP3471361B1 (en) * 2016-06-17 2021-10-06 LG Electronics Inc. Method and user equipment for receiving downlink signal, method and base station for transmitting downlink signal
CN105979597B (zh) * 2016-06-27 2020-02-21 宇龙计算机通信科技(深圳)有限公司 通信资源的分配方法、分配装置、基站和终端
WO2018004320A1 (ko) * 2016-07-01 2018-01-04 엘지전자 주식회사 데이터 수신 방법 및 수신 장치와, 데이터 전송 방법 및 전송 장치
WO2018113951A1 (en) * 2016-12-21 2018-06-28 Nokia Technologies Oy Automatic retransmission of damaged data in wireless networks
KR102238540B1 (ko) * 2017-01-03 2021-04-09 엘지전자 주식회사 펑처링된 데이터의 재전송 방법 및 이를 위한 장치
WO2018143689A1 (ko) * 2017-02-02 2018-08-09 엘지전자 주식회사 선점된 자원 정보를 지시하는 방법 및 이를 위한 장치
WO2018143740A1 (ko) * 2017-02-05 2018-08-09 엘지전자 주식회사 무선 통신 시스템에서 단말의 상향링크 제어 정보 전송 방법 및 이를 지원하는 장치
WO2018143848A1 (en) * 2017-02-06 2018-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Detection of punctured resources
EP3577806B1 (en) * 2017-02-06 2021-02-03 Telefonaktiebolaget LM Ericsson (publ) Enhancements for retransmission due to conflicting transmissions for different services
WO2018142201A1 (en) * 2017-02-06 2018-08-09 Telefonaktiebolaget Lm Ericsson (Publ) Retransmission for punctured signals
US10757718B2 (en) * 2017-02-16 2020-08-25 Qualcomm Incorporated Post-puncture indication for mobile broadband and low latency communication multiplexing
US10911982B2 (en) * 2017-03-02 2021-02-02 Ntt Docomo, Inc. User terminal and radio communication method
US10932278B2 (en) * 2017-03-20 2021-02-23 Convida Wireless, Llc Scheduling and control in new radio using preemption indication
US10567142B2 (en) * 2017-03-23 2020-02-18 Apple Inc. Preemption indicators and code-block-group-based retransmission techniques for multiplexing different services on physical layer frames
US10892860B2 (en) * 2017-03-23 2021-01-12 Panasonic Intellectual Property Corporation Of America Method, apparatus and system for controlling retransmission scheme
WO2018174780A1 (en) * 2017-03-24 2018-09-27 Telefonaktiebolaget Lm Ericsson (Publ) Network node, ue and methods therein for detecting a damaged transmission of data due to data puncturing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160270045A1 (en) * 2015-03-15 2016-09-15 Qualcomm Incorporated Subframe structure with embedded control signaling
CN106413105A (zh) * 2015-07-30 2017-02-15 中国移动通信集团公司 一种资源传输的指示方法、装置、网络侧设备及终端
WO2017056003A2 (en) * 2015-10-01 2017-04-06 Nokia Technologies Oy Apparatus and method for puncturing data transmissions due to higher priority data
CN107295682A (zh) * 2016-04-01 2017-10-24 中国移动通信有限公司研究院 一种下行数据传输及检测方法、装置、相关设备和系统

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3576478A4 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113839737A (zh) * 2020-06-23 2021-12-24 中兴通讯股份有限公司 数据处理方法及装置、存储介质、电子装置

Also Published As

Publication number Publication date
BR112019021530A2 (pt) 2020-05-12
CN108696936B (zh) 2022-11-11
EP3576478A1 (en) 2019-12-04
EP3576478B1 (en) 2021-10-27
US20200044776A1 (en) 2020-02-06
EP3576478A4 (en) 2020-03-04
US11374687B2 (en) 2022-06-28
CN108696936A (zh) 2018-10-23

Similar Documents

Publication Publication Date Title
WO2018188475A1 (zh) 数据发送方法、接收方法和相关设备
US11212036B2 (en) Data communication method, device, and system
CN107835063B (zh) 信息传输的方法、发送端设备和接收端设备
WO2018086147A1 (zh) 传输上行数据的方法、终端设备和网络设备
JP2018512774A (ja) アップリンクデータ伝送の方法および装置
JP6517346B2 (ja) 指示情報を伝送するための方法および装置
WO2018082485A1 (zh) 数据处理的方法、基站与终端
US11728931B2 (en) Communication method, network device, and terminal
CN112134647B (zh) 传输数据的方法和发送端设备
WO2016134528A1 (zh) 传输下行控制信息的方法和装置
WO2018228457A1 (zh) 发送和接收反馈信息的方法和装置
WO2018081989A1 (zh) 传输上行控制信息的方法、终端设备和网络设备
JP2022046754A (ja) チャネル符号化に用いるユーザー装置、基地局における方法及び装置
US11026244B2 (en) Method and device in terminal and base station for dynamic scheduling
WO2016101108A1 (zh) 传输指示信息的方法和装置
WO2018023485A1 (zh) 传输数据的方法和设备
EP3895356A1 (en) Network access node and client device for indication of multiple data channels in a single control message
WO2016070395A1 (zh) 传输信息的方法、接入点和用户设备
WO2017004819A1 (zh) 资源调度的方法、装置和设备
CN112889329A (zh) 一种dmrs样式指示信息的传输方法和通信装置
CN109644066A (zh) 一种被用于无线通信的用户、基站中的方法和设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18783741

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2018783741

Country of ref document: EP

Effective date: 20190830

NENP Non-entry into the national phase

Ref country code: DE

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112019021530

Country of ref document: BR

ENP Entry into the national phase

Ref document number: 112019021530

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20191014