WO2022120600A1 - Procédé et appareil de transmission répétée, et dispositif et support de stockage - Google Patents

Procédé et appareil de transmission répétée, et dispositif et support de stockage Download PDF

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Publication number
WO2022120600A1
WO2022120600A1 PCT/CN2020/134672 CN2020134672W WO2022120600A1 WO 2022120600 A1 WO2022120600 A1 WO 2022120600A1 CN 2020134672 W CN2020134672 W CN 2020134672W WO 2022120600 A1 WO2022120600 A1 WO 2022120600A1
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Prior art keywords
time slot
sets
transmission
rvs
time slots
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PCT/CN2020/134672
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English (en)
Chinese (zh)
Inventor
崔胜江
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Oppo广东移动通信有限公司
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Application filed by Oppo广东移动通信有限公司 filed Critical Oppo广东移动通信有限公司
Priority to PCT/CN2020/134672 priority Critical patent/WO2022120600A1/fr
Priority to CN202080106999.1A priority patent/CN116349181A/zh
Publication of WO2022120600A1 publication Critical patent/WO2022120600A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability

Definitions

  • the embodiments of the present application relate to the field of communication technologies, and in particular, to a method, apparatus, device, and storage medium for repeated transmission.
  • 3GPP 3rd Generation Partnership Project, 3rd Generation Partnership Project
  • NR New Radio, new air interface
  • the data repetition transmission mechanism means that the sender uses the same symbol allocation scheme in multiple consecutive time slots (Slots) to transmit the same TB (Transport Block, transport block) multiple times.
  • Slots Time Slot
  • the sender needs to segment the TB, then encode each segment of the segmented TB separately, and place the encoded data in the ring buffer.
  • the transmitting end performs rate matching on the TB-encoded data based on the RV (Redundant Version, redundancy version) to determine the data transmitted to the receiving end in this transmission process.
  • an aggregation factor is also defined to indicate the number of timeslots that need to perform repeated transmission.
  • the aggregation factor is collectively referred to as the transmission repetition value . Based on this, if there are time slots that do not meet the data transmission requirements in multiple consecutive time slots, the repeated transmissions in these time slots that do not meet the data transmission requirements will be ignored, and the actual number of repeated transmissions does not meet the transmission requirements. Duplicate values, resulting in less than ideal coverage enhancement.
  • Embodiments of the present application provide a method, apparatus, device, and storage medium for repeated transmission.
  • the technical solution is as follows:
  • an embodiment of the present application provides a method for repeated transmission, and the method includes:
  • n time slots for repeated transmission where n is a positive integer
  • the first RE (Resource Elements, resource element) in the first time slot is divided to obtain k RE sets, the m is a positive integer, and the k is a positive integer; wherein, the first time slot includes at least one time slot in the n time slots;
  • the above-mentioned repeated transmission method is applied in a terminal device; or, the above-mentioned repeated transmission method is applied in a network device.
  • an embodiment of the present application provides a repeated transmission device, the device comprising:
  • a time slot determination module configured to determine n time slots for repeated transmission, where n is a positive integer
  • a resource division module configured to divide the first REs in the first time slot based on m RVs for the first time slot in the n time slots to obtain k RE sets, where m is a positive integer, the k is a positive integer; wherein, the first time slot includes at least one time slot in the n time slots;
  • a data transmission module configured to transmit, in the first time slot, data corresponding to the m RVs based on the k RE sets.
  • the above-mentioned repeated transmission apparatus is set in a terminal device; or, the above-mentioned repeated transmission apparatus is set in a network device.
  • an embodiment of the present application provides a device, the device includes: a processor, and a transceiver connected to the processor; wherein:
  • the processor configured to determine n time slots for repeated transmission, where n is a positive integer
  • the processor is further configured to, for the first time slot in the n time slots, divide the first REs in the first time slot based on m RVs to obtain k RE sets, the m is a positive integer, and the k is a positive integer; wherein, the first time slot includes at least one time slot in the n time slots;
  • the transceiver is configured to transmit, in the first time slot, data corresponding to the m RVs based on the k RE sets.
  • the above-mentioned device is a terminal device; or, the above-mentioned device is a network device.
  • an embodiment of the present application provides a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is configured to be executed by a processor of a device to implement the above-mentioned method for repeated transmission.
  • the above-mentioned device is a terminal device; or, the above-mentioned device is a network device.
  • an embodiment of the present application provides a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a device, it is used to implement the above-mentioned repeated transmission method.
  • the above-mentioned device is a terminal device; or, the above-mentioned device is a network device.
  • an embodiment of the present application provides a computer program product, which is used to implement the above-mentioned repeated transmission method when the computer program product runs on a device.
  • the above-mentioned device is a terminal device; or, the above-mentioned device is a network device.
  • the transmitting end divides REs that can be used for repeated transmission in the time slot, and transmits data corresponding to multiple redundant versions at the same time based on the divided REs, so that the data corresponding to multiple redundant versions can be transmitted in one time slot. transmission.
  • the embodiment of the present application realizes that the actual number of repeated transmissions is increased as much as possible under the configuration of a limited transmission repetition value, which effectively avoids The number of transmission time slots does not reach the transmission repetition value, and the ideal coverage enhancement effect cannot be achieved, which solves the problem of limited coverage and ensures effective repeated transmission between the terminal device and the network device.
  • the embodiment of the present application divides the REs that can be used for repeated transmission in the time slot.
  • the original RE design in the time slot improves the compatibility and adaptability of repeated transmission.
  • FIG. 1 is a schematic diagram of a system architecture provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a self-contained time slot provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of a timing relationship provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a combination of data repeated transmission and a flexible time slot structure provided by an embodiment of the present application
  • FIG. 6 is a schematic diagram of a time slot provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of resource partitioning provided by an embodiment of the present application.
  • FIG. 8 is a schematic diagram of resource partitioning provided by another embodiment of the present application.
  • FIG. 9 is a schematic diagram of resource partitioning provided by another embodiment of the present application.
  • FIG. 10 is a schematic diagram of resource partitioning provided by another embodiment of the present application.
  • FIG. 11 is a schematic diagram of resource partitioning provided by yet another embodiment of the present application.
  • FIG. 12 is a block diagram of a repeated transmission device provided by an embodiment of the present application.
  • FIG. 13 is a block diagram of a repeated transmission device provided by another embodiment of the present application.
  • FIG. 14 is a structural block diagram of a device provided by an embodiment of the present application.
  • the network architecture and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application.
  • the evolution of new business scenarios and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
  • FIG. 1 shows a schematic diagram of a system architecture provided by an embodiment of the present application.
  • the system architecture may include: a terminal device 10 and a network device 20 .
  • the number of terminal devices 10 is usually multiple, and one or more terminal devices 10 may be distributed in a cell managed by each network device 20 .
  • the terminal device 10 may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to wireless modems with wireless communication functions, as well as various forms of user equipment (UE), mobile stations (Mobile Station, MS) and so on.
  • UE user equipment
  • MS Mobile Station
  • the network device 20 is a device deployed in an access network to provide a wireless communication function for the terminal device 10 .
  • the network device 20 may include various forms of macro base stations, micro base stations, relay stations, access points, and the like.
  • the names of devices with network device functions may be different, such as in 5G NR systems or NR-U (New Radio-Unlicensed, Unlicensed Carrier New Radio) systems , called gNodeB or gNB.
  • gNodeB New Radio-Unlicensed, Unlicensed Carrier New Radio
  • the name "network equipment” may change.
  • the above-mentioned apparatuses for providing a wireless communication function for the terminal device 10 are collectively referred to as network devices.
  • the "5G NR system" in the embodiments of this application may also be referred to as a 5G system or an NR system, but those skilled in the art can understand its meaning.
  • the technical solutions described in the embodiments of this application may be applicable to the 5G NR system or the NR-U system, and may also be applicable to the subsequent evolution system of the 5G NR system or the NR-U system.
  • 3GPP introduced a data repetition transmission mechanism in the NR system.
  • the data repetition transmission mechanism means that the transmitter uses the same symbol allocation scheme in multiple consecutive time slots to transmit the same TB multiple times.
  • the sender needs to segment the TB, then encode each segment of the segmented TB separately, and place the encoded data in the ring buffer.
  • the transmitting end performs rate matching on the TB-encoded data based on the RV to determine the data transmitted to the receiving end in this transmission process.
  • an aggregation factor (AggregationFactor) is also defined in the data repetition transmission mechanism to indicate the number of timeslots that need to be repeated transmission.
  • the aggregation factor is collectively referred to as a transmission repetition value.
  • the transmission repetition value For the repeated transmission of downlink data in PDSCH (Physical Downlink Shared Channel, physical downlink shared channel), that is, when the sender is a network device, the transmission repetition value is defined as the parameter pdsch-AggregationFactor (downlink transmission repetition value);
  • the transmission repetition value is defined as the parameter pusch-AggregationFactor (uplink transmission repetition value).
  • the transmission repetition value includes any of the following: 1, 2, 4, and 8.
  • the sender when the transmission repetition value is greater than 1, that is, when the parameter pdsch-AggregationFactor>1 or the parameter pusch-AggregationFactor>1, the sender will transmit multiple consecutive time slots with the number of time slots equal to the transmission repetition value The same TB is transmitted multiple times using the same symbol allocation scheme.
  • the RV corresponding to the data transmitted by the sender is shown in Table 1 and Table 2 below.
  • the NR system implements FDD (Frequency Division Duplex) by configuring the OFDM (Orthogonal Frequency Division Multiplexing, Orthogonal Frequency Division Multiplexing) symbols in the time slot as uplink symbols or downlink symbols. Effect.
  • the uplink and downlink configuration period of the TDD (Time Division Duplex) frequency band can also be flexibly configured.
  • cycle lengths such as 5ms, 10ms, etc.
  • the concept of self-contained time slot and flexible time slot structure is also introduced in the NR system.
  • FIG. 2 shows a schematic diagram of a self-contained time slot provided by an embodiment of the present application.
  • a self-contained time slot means that in order to reduce the time delay between data transmission and ACK/NACK (Acknowledge/Negative Acknowledge, acknowledgement/non-acknowledgement) feedback, the data part and the feedback channel are included in one time slot.
  • the terminal device can implement data reception and feedback (ie ACK/NACK) corresponding to the data reception in the same time slot.
  • the terminal device when the terminal device receives downlink data, it has already The decoding of the reference signal and the downlink control information is completed, so that the downlink data can be decoded immediately; according to the decoding result of the downlink data, the terminal device can prepare the uplink control information such as ACK/NACK during the downlink and uplink switching; In the uplink, the terminal equipment sends the uplink control information. It can be seen that the self-contained time slot can enable the network device and the terminal device to complete the complete data interaction within one time slot, thereby greatly reducing the delay caused by feedback.
  • each symbol in a time slot can be configured as a symbol with flexible attributes in addition to being fixedly configured as an uplink symbol and a downlink symbol.
  • the flexible attribute symbol can be used as a guard symbol or a guard interval for
  • the uplink and downlink conversion time can also be dynamically indicated based on the control channel of the physical layer, and it can take effect in real time as a downlink symbol or an uplink symbol, so as to achieve the effect of flexibly supporting service diversity.
  • the NR system includes all downlink time slots, all uplink time slots, all flexible time slots, and time slot structures with different numbers of downlink symbols, uplink symbols, and flexible symbols, and different time slots.
  • the structures correspond to a slot format index respectively.
  • the NR system takes into account the flexibility of scheduling, especially for URLLC (Ultra Reliable and Low Latency Communications) services that require extremely short delay
  • NR has designed the timing relationship as shown in Figure 3 , the timing diagram of NR PDSCH/PUSCH scheduling/retransmission is given.
  • the K0 value represents the transmission time slot offset between downlink scheduling and downlink data transmission
  • the K1 value represents the transmission time slot offset between downlink data transmission and feedback information
  • the K3 value represents the difference between the feedback information and the feedback information.
  • the value of K2 represents the transmission time slot offset between uplink scheduling and uplink data transmission.
  • FIG. 4 it shows a schematic diagram of a combination of data repeated transmission and a flexible time slot structure provided by an embodiment of the present application.
  • timeslot 1 and timeslot 2 are configured for downlink transmission, so the actual number of repeated transmissions is only 2 times, which does not reach the parameter pusch-AggregationFactor requirements, and thus cannot achieve the desired coverage enhancement effect.
  • DDDSU in five consecutive time slots, D represents all downlink time slots, U represents all uplink time slots, and S represents mixed uplink and downlink and guard time slots
  • configure the parameter pusch-AggregationFactor If it is 4, then in 4 consecutive time slots, only one effective uplink transmission can be actually performed, and the configured parameter pusch-AggregationFactor does not play a role, so the repeated data transmission in the related art has no effect on the system of the TDD frame structure.
  • the coverage limit is too large, which affects the deployment efficiency of TDD.
  • an embodiment of the present application provides a method for repeated transmission, which can be used to perform repeated transmission of multiple redundancy versions at the same time, so as to improve the coverage enhancement effect.
  • a method for repeated transmission which can be used to perform repeated transmission of multiple redundancy versions at the same time, so as to improve the coverage enhancement effect.
  • FIG. 5 shows a flowchart of a repeated transmission method provided by an embodiment of the present application.
  • the repeated transmission method can be applied to the terminal device 10 shown in FIG. 1 above, and can also be applied to the network device 20 shown in FIG. 1 above.
  • the method includes the following steps.
  • Step 510 determine n time slots for repeated transmission.
  • the repeated transmission described in the embodiments of the present application can be either uplink repeated transmission, that is, the sender is a terminal device, or downlink repeated transmission, that is, the sender is a network device.
  • the transmitting end Before the transmitting end performs repeated transmission, it needs to determine n time slots for repeated transmission, where n is a positive integer.
  • the n time slots used for repeated transmission are consecutive n time slots.
  • the above step 510 includes: determining n time slots based on timing information of DCI (Downlink Control Information, downlink control information) and a transmission repetition value.
  • DCI refers to control information transmitted through a PDCCH (Physical Downlink Control Channel, physical downlink control channel), which can be used for both uplink scheduling and downlink scheduling, which is not limited in this embodiment of the present application. It can be known from the above description of time domain resource allocation and timing that the timing information of the DCI is used to indicate the transmission slot offset.
  • the transmission repetition value (AggregationFactor) is used to configure the number of time slots of multiple time slots used for repeated transmission.
  • the transmission repetition value is equal to n.
  • the sender Since the DCI and the transmission repetition value are configured by the network device and sent to the terminal device, in the case where the sender is a terminal device, it needs to receive the DCI and transmission repetition value sent by the network device, and then based on the timing information of the DCI and the transmission repetition value. Repeat values are transmitted to determine n time slots.
  • determining n time slots based on the timing information of the DCI and the transmission repetition value including: starting with the time slot indicated by the timing information of the DCI, determining the time for repeated transmission indicated by the transmission repetition value. slot to get n time slots.
  • the timing information of the DCI is used to indicate the transmission time slot offset, starting with the time slot indicated by the timing information of the DCI, combined with the configured transmission repetition value, the amount of time occupied by each repeated transmission can be determined. time slot.
  • the timing information of the DCI includes first timing information, and the first timing information is used to indicate the transmission time slot offset of the downlink transmission, that is, the receiving time slot of the DCI.
  • the first timing information is the K0 value in the above description of time domain resource allocation and timing; when DCI is used for uplink scheduling, DCI
  • the timing information includes second timing information, and the second timing information is used to indicate the transmission time slot offset of the uplink transmission, that is, the transmission time slot offset between the receiving time slot of the DCI and the uplink transmission time slot,
  • the second timing information is the K2 value in the above description of time-domain resource allocation and timing.
  • Step 520 For the first time slot in the n time slots, based on the m RVs, divide the first RE in the first time slot to obtain k RE sets.
  • the first time slot includes at least one time slot among the n time slots, that is, the first time slot may include one time slot among the n time slots, or the first time slot may include more than one time slot among the n time slots.
  • timeslots such as 2 timeslots, 3 timeslots, 4 timeslots, etc.
  • the multiple time slots included in the first time slot are consecutive time slots;
  • the multiple time slots are discontinuous time slots, and it is not limited whether the multiple time slots included in the first time slot are continuous in this embodiment of the present application.
  • the embodiment of the present application divides the first REs in the first time slot based on m RVs to obtain k RE sets, each RE set includes at least one first RE, and m is positive Integer, k is a positive integer.
  • the m RVs refer to the RVs that are uniformly selected by the transmitting end and the receiving end for repeated transmission. This embodiment of the present application does not limit the manner of determining m RVs.
  • m RVs are determined based on the first RE in the first time slot, the transmission repetition value, and the version indication information included in the DCI, and the version indication information is to indicate the RV corresponding to the initial transmission in the repeated transmission.
  • m RVs are determined through an algorithm, and based on the algorithm, m RVs can be obtained by taking the first RE in the first time slot, the transmission repetition value, and the version indication information included in the DCI as inputs.
  • the m RVs determined in the embodiments of the present application include the RV number (ie, m) of the m RVs and/or the RV identifiers (Identifiers, IDs) of the m RVs.
  • the first RE refers to an RE that can be used for repeated transmission.
  • the time slot includes 14 symbols, wherein the symbol 0 and symbol 11 are used for the transmission of the pre-demodulation reference signal and the additional demodulation reference signal, respectively, and the remaining 12 symbols (ie, symbol 1 to symbol 10 and symbol 12 to symbol 13) can be used for repeated transmission.
  • the first time slot includes 144 REs, that is, the first time slot in the first time slot contains 144 REs.
  • the number of REs is 144.
  • k RE sets can be obtained. Since the data characteristics corresponding to different RVs are different (that is, the numbers and positions of data bits and check bits contained in different RVs are different), the data corresponding to different RVs have different requirements for transmission resources, that is, the requirements for REs are different. The needs are also different. In an example, in the process of dividing the first RE in the first time slot to obtain k RE sets, the mapping relationship between m RVs and k RE sets may be determined at the same time.
  • dividing the first REs in the first time slot to obtain k RE sets including: dividing the first REs in the first time slot based on the number of RVs and RV identifiers of the m RVs to obtain k RE sets, and the mapping relationship between m RVs and k RE sets.
  • the segmentation can be selectively performed to achieve a higher fit with the specific RV identifiers of m RVs Spend.
  • the mapping relationship between m RVs and k RE sets is determined.
  • the above is based on m RVs , dividing the first RE in the first time slot to obtain k RE sets, including: dividing the first RE in the first time slot based on the RV number of m RVs to obtain k RE sets.
  • the first RE in the first time slot is divided, and after k RE sets are obtained, it further includes: RV identifiers based on m RVs, Determine the mapping relationship between m RVs and k RE sets.
  • the embodiments of the present application do not limit the relationship between m and k.
  • m is equal to k, so that for each RV, from the first time
  • the first RE in the slot is divided into a set of REs for the transmission of the RV.
  • each RV transmitted at the same time transmits at least once, that is, there is a certain RV or some RVs in the m RVs transmit multiple times in the first time slot
  • k is greater than m
  • the division of the first RE in the first time slot is used as an example to describe the division of the first RE in the first time slot, and the division of the first RE in other time slots may be the same as
  • the division of the first REs in the first time slot is the same, that is, the division manner of the first REs in each of the n time slots is the first division manner;
  • the division of the REs may also be different from the division of the first REs in the first time slot, that is, the n time slots include the second time slot, and the way of dividing the first REs in the second time slot is different from that for the first REs in the second time slot.
  • the division manners of the first REs in the first time slot are different. Different time slots in the n time slots can adopt different RE division methods, so that the flexible time slots can be fully and effectively used, so as to avoid the difference between the number of symbols available for data transmission in the flexible time slots and all uplink time slots or all downlink time slots. When the number of symbols available for data transmission in the time slot is not the same, the repeated transmission in the flexible time slot is ignored.
  • the second time slot includes at least one time slot among the n time slots except the first time slot, that is, the second time slot may include one time slot among the n time slots, or, the second time slot Multiple time slots out of n time slots may be included, such as 2 time slots, 3 time slots, 4 time slots, and so on.
  • the multiple time slots included in the second time slot are consecutive time slots;
  • the multiple time slots are discontinuous time slots, and it is not limited whether the multiple time slots included in the second time slot are continuous in this embodiment of the present application.
  • the number of time slots included in the second time slot may be equal to the number of time slots included in the first time slot, or may not be equal to the number of time slots included in the first time slot, which is not limited in this embodiment of the present application.
  • Step 530 in the first time slot, transmit data corresponding to m RVs based on the k RE sets.
  • the transmitting end can perform rate matching on the encoded data based on the m RVs to determine the data corresponding to each RV in the m RVs, and perform the rate matching on the coded data in the first time slot.
  • the RE set corresponding to the RV is used to transmit the data corresponding to the RV.
  • the above step 530 includes: determining encoding parameters; encoding the data to be transmitted according to the encoding parameters to obtain a transmission code block; performing rate matching on the transmission code block based on m RVs to obtain the corresponding Data; based on k RE sets, transmit data corresponding to m RVs.
  • the encoding parameter refers to a parameter on which the data to be transmitted is encoded. This embodiment of the present application does not limit the specific content of the encoding parameter.
  • the encoding parameter includes a code rate and/or a size of a transmission code block.
  • the embodiments of the present application also do not limit the specific manner of determining the encoding parameters. Several ways of determining encoding parameters are shown below.
  • the n time slots include a third time slot; the foregoing determining the coding parameter includes: determining the coding parameter based on the first RE in the third time slot.
  • the third time slot includes at least one time slot in n time slots, that is, the third time slot may include one time slot in n time slots, or the third time slot may include in n time slots multiple timeslots, such as 2 timeslots, 3 timeslots, 4 timeslots, etc.; optionally, when the third timeslot includes multiple timeslots in the n timeslots, the third timeslot
  • the multiple time slots included in the slot are continuous time slots; or, the multiple time slots included in the third time slot are discontinuous time slots.
  • the third time slot may be the above-mentioned first time slot, or may be at least one time slot other than the first time slot among the n time slots.
  • the coding parameter may be determined based on the first RE in one time slot or multiple time slots, optionally, the coding parameter is determined based on the number of REs of the first RE in one time slot or multiple time slots Sure.
  • the above-mentioned determining the encoding parameter includes: determining the encoding parameter based on the third RE set in the k RE sets.
  • the number of REs included in the third RE set is the set with the largest number of REs included in the k RE sets, and the time slot occupied by the third RE set includes at least one time slot in the n time slots. That is, in this embodiment of the present application, the encoding parameter may also be determined based on the RE set (the third RE set) that contains the largest number of REs, and optionally, the encoding parameter is determined based on the number of REs included in the third RE set. Sure.
  • the transmitting end After determining the encoding parameter, the transmitting end encodes the data to be transmitted according to the encoding parameter, thereby obtaining the transmission code block. Based on the m RVs, the transmitting end may perform rate matching on the encoded transport code blocks to determine data corresponding to each RV. Optionally, the transmitting end can determine the bit size occupied by the transmitted data according to the REs that can be used for data transmission and the modulation method, and then the transmitting end can determine the bit size occupied by the m RVs and the transmitted data from the encoded data. The data corresponding to each RV is determined in the transmission code block. After that, the transmitting end only needs to transmit data corresponding to m RVs based on the k RE sets.
  • the data corresponding to the RV described in the embodiments of the present application refers to the data segment corresponding to the RV in the transmission code block obtained after encoding, and is not used to specifically refer to data bits. It should be understood that the data corresponding to the RV includes: data bits and/or redundant bits, that is, the data corresponding to the RV includes three cases: only data bits, only redundant bits, and both data bits and redundant bits. .
  • the repeated transmission is stopped.
  • repeated transmission may be stopped to avoid wasting transmission resources.
  • the embodiments of the present application are designed to transmit multiple RVs at the same time on the basis of being compatible with the original data repetition transmission, such as compatibility with transmission repetition values, that is, multiple RVs are performed in the same time slot. , in order to achieve more repeated transmission times and improve the coverage enhancement effect. Therefore, what the transmission repetition value indicates is still the number of timeslots for repeated transmission, and the sender stops the repeated transmission when the number of timeslots for repeated transmission meets the transmission repetition value.
  • the above further includes: demodulating data corresponding to m RVs to obtain data demodulation results corresponding to the first time slot; combining the data demodulation results corresponding to the w time slots to obtain combined data , w is a positive integer less than or equal to n; decode the combined data.
  • the receiving end When the receiving end receives the data corresponding to m RVs transmitted by the transmitting end in the first time slot, according to the above-mentioned method for the transmitting end to determine the mapping relationship between the first RE in the first time slot and the m RVs, to The first RE in the first time slot is divided to obtain k RE sets, and the RV corresponding to each RE set is determined, so that according to this information, the receiving end can The data is demodulated, and the demodulation result is obtained. After demodulation, the receiving end needs to combine the demodulation results, for example, performing IR (Incremental Redundancy, incremental redundancy) combination of soft bits on the demodulation results to obtain combined data.
  • IR Intelligent Redundancy, incremental redundancy
  • This embodiment of the present application does not limit the number of time slots corresponding to when the receiving end performs combining processing.
  • the receiving end combines demodulation results corresponding to one time slot; or, the receiving end demodulates corresponding to multiple time slots. The results are merged. Finally, the receiving end decodes the combined data.
  • the above method further includes: obtaining a feedback time slot based on the timing information of the DCI and the time slot when the repeated transmission is stopped; in the feedback time slot, transmitting feedback information, where the feedback information is used to indicate data reception.
  • the receiving end may determine a feedback time slot, and transmit feedback information to the transmitting end in the feedback time slot, so as to indicate the data reception situation to the transmitting end.
  • the feedback information includes ACK or NACK.
  • the feedback time slot is determined based on the timing information of the DCI and the time slot when the transmitting end stops repeated transmission.
  • the timing information of the DCI includes third timing information
  • the third timing information is used to indicate the transmission time slot offset of the feedback information, that is, the transmission time slot offset between the downlink data transmission and the feedback information
  • the third timing information includes the above K1 value.
  • the feedback time slot is the sum of the time slot when the transmitting end stops repeated transmission and the transmission time slot offset indicated by the third timing information.
  • the transmitting end divides the REs that can be used for repeated transmission in the time slot, and simultaneously transmits data corresponding to multiple redundant versions based on the divided REs, thereby realizing the Data transmission corresponding to multiple redundancy versions is performed in one time slot.
  • the embodiment of the present application realizes that under the configuration of limited transmission repetition value, the actual number of repeated transmissions is increased as much as possible, and the actual repetition is effectively avoided.
  • the number of transmission time slots does not reach the transmission repetition value, and the ideal coverage enhancement effect cannot be achieved, which solves the problem of limited coverage and ensures effective repeated transmission between the terminal device and the network device.
  • the embodiment of the present application divides the REs that can be used for repeated transmission in the time slot.
  • the original RE design in the time slot improves the compatibility and adaptability of repeated transmission.
  • m is equal to k
  • the m RVs correspond one-to-one with the k RE sets.
  • each RV only transmits once in the first time slot, m and k are equal. Based on this, there is a one-to-one correspondence between the m RVs and the k RE sets, that is, each RE set in the k divided RE sets corresponds to one RV, and different RE sets correspond to different RVs.
  • the first time slot including one time slot among n time slots as an example, as shown in FIG. 7 , it shows a schematic diagram of resource partitioning provided by an embodiment of the present application.
  • the first time slot is time slot n
  • the number of RV versions is 4, which are RV 0 , RV 1 , RV 2 and RV 3 respectively.
  • 4 RE sets are obtained, and each RV corresponds to one RE set respectively.
  • m is less than k
  • a first RV of the m RVs corresponds to at least two RE sets of the k RE sets.
  • k is greater than m when there are m RVs in which the RV performs at least two transmissions in the first time slot. Based on this, among the m RVs, an RV that performs multiple transmissions corresponds to multiple RE sets, and an RV that performs one transmission corresponds to one RE set.
  • the first time slot including one time slot among n time slots as an example, as shown in FIG. 8 , it shows a schematic diagram of resource partitioning provided by another embodiment of the present application.
  • the first time slot is time slot n
  • the number of RV versions is 4, which are RV 0 , RV 1 , RV 2 and RV 3 respectively
  • RV 0 transmits twice
  • RV 1 , RV 2 and RV 3 respectively make a transfer.
  • RV 0 corresponds to two RE sets
  • RV 1 , RV 2 and RV 3 respectively correspond to one RE set.
  • the number of REs included in each of the k RE sets is the first number of REs.
  • the number of REs included in each RE set in the k RE sets obtained by the division is the same, that is, the number of the first REs is the same.
  • the first time slot including one time slot among n time slots shows a schematic diagram of resource partitioning provided by an embodiment of the present application. It is assumed that the first time slot is time slot n, the first RE in the first time slot occupies 12 symbols and 12 subcarriers, and 4 RE sets are obtained after dividing the first RE in the first time slot. Then there are a total of 144 REs in the first time slot, and each RE set in the 4 RE sets contains an equal number of REs, both of which are 36.
  • the number of REs included in the first RE set in the k RE sets is different from the number of REs included in the second RE set in the k RE sets.
  • the number of included REs is not equal to the number of REs included in the second RE set in the k RE sets.
  • the number of REs included in the third RE set may be equal to the number of REs included in the first RE set, or may be equal to the number of REs included in the second RE set.
  • the number of REs included in the set may also be different from the number of REs included in the first RE set and the number of REs included in the second RE set, which is not limited in this embodiment of the present application.
  • the first time slot including one time slot among n time slots as an example, as shown in FIG. 9 , it shows a schematic diagram of resource partitioning provided by another embodiment of the present application. It is assumed that the first time slot is time slot n, the first RE in the first time slot occupies 12 symbols and 12 subcarriers, and 4 RE sets are obtained after dividing the first RE in the first time slot. Then there are 144 REs in the first time slot, and the number of REs included in the 4 RE sets are: 84, 24, 24, and 12 respectively.
  • the subcarriers occupied by each of the k RE sets are consecutive.
  • the k RE sets obtained by dividing the first RE in the first time slot there may be one or some RE sets occupying multiple subcarriers, optionally, multiple subcarriers occupied by the RE set occupying multiple subcarriers are consecutive subcarriers.
  • FIG. 7 shows a schematic diagram of resource partitioning provided by an embodiment of the present application. It is assumed that the first time slot is time slot n, the first RE in the first time slot occupies 12 symbols and 12 subcarriers, and 4 RE sets are obtained after dividing the first RE in the first time slot. As shown in FIG. 7 , each of the four RE sets occupies multiple subcarriers, and the subcarriers occupied by each RE set are consecutive.
  • subcarriers occupied by at least one RE set in the k RE sets are discontinuous.
  • the k RE sets obtained by dividing the first REs in the first time slot there may be one or some RE sets occupying multiple subcarriers, optionally, at least one RE exists in the RE sets occupying multiple subcarriers Sets occupy non-contiguous subcarriers. That is, the RE sets occupying multiple subcarriers all occupy non-contiguous subcarriers; or, some RE sets in the RE set occupying multiple subcarriers all occupy continuous subcarriers, and some RE sets all occupy non-consecutive subcarriers.
  • the first time slot including one time slot among n time slots as an example
  • FIG. 10 shows a schematic diagram of resource division provided by another embodiment of the present application. It is assumed that the first time slot is time slot n, the first RE in the first time slot occupies 12 symbols and 12 subcarriers, and 4 RE sets are obtained after dividing the first RE in the first time slot. As shown in FIG. 10 , each of the four RE sets occupies multiple subcarriers, and the subcarriers occupied by each RE set are non-consecutive.
  • subcarriers occupied by at least two RE sets in the k RE sets include the first subcarrier.
  • the first RE in the first time slot occupies at least one subcarrier, and for the first subcarrier in the at least one subcarrier, the first subcarrier may correspond to one RE set, that is, subcarriers occupied by multiple RE sets There are no overlapping subcarriers in the ; alternatively, the first subcarrier may also correspond to multiple RE sets, that is, the same subcarrier exists in the subcarriers occupied by at least two RE sets in the multiple RE sets.
  • FIG. 11 shows a schematic diagram of resource partitioning provided by another embodiment of the present application. It is assumed that the first time slot is time slot n, the first RE in the first time slot occupies 12 symbols and 12 subcarriers, and 4 RE sets are obtained after dividing the first RE in the first time slot. As shown in FIG. 11 , two of the four RE sets occupy 9 subcarriers respectively, and the occupied subcarriers are the same; the other two RE sets respectively occupy 3 subcarriers, and the occupied subcarriers are also the same.
  • the above step 520 includes: determining a division pattern based on the first RE in the first time slot and the version indication information included in the DCI, where the version indication information is used to indicate the RV corresponding to the initial transmission in the repeated transmission;
  • the first RE in the first time slot is divided according to the division pattern to obtain k RE sets.
  • the first RE can be divided directly after the terminal device and the network device specify the same dividing way; but for some complex ways of dividing the first RE
  • the terminal device and the network device may specify the same segmentation pattern, so that the first RE is segmented based on the segmentation pattern, thereby ensuring the same segmentation results obtained by the terminal device and the network device.
  • the first RE may also be divided based on a division pattern, which is not limited in this embodiment of the present application.
  • the division pattern is determined based on the RV corresponding to the initial transmission in the repeated transmission indicated by the first RE in the first time slot and the DCI.
  • the DCI includes version indication information, where the version indication information is used to indicate the RV corresponding to the initial transmission in the repeated transmission.
  • the division pattern may be further determined by combining the index indication of repeated transmission, that is, based on the division pattern in the first time slot. The division pattern is determined by the first RE, the index indication of repeated transmission, and the version indication information included in the DCI, so that different RE division modes can be adopted in different time slots.
  • the index indication of the repeated transmission may be a time slot index indication, which is used to indicate that the first time slot is the number of timeslots of the repeated transmission; or, the index indication of the repeated transmission may be a set index indication, which is used for The transmission of the data corresponding to the RV mapped to the RE set indicates the number of times of transmission, and the embodiment of the present application does not limit the specific expression of the index indication of repeated transmission.
  • the segmentation pattern is determined through an algorithm; or, it is predefined through a communication protocol, which is not limited in this embodiment of the present application.
  • the segmentation pattern is determined by an algorithm, based on the algorithm, the first RE in the first time slot and the version indication information included in the DCI are used as inputs, and optionally, the index indication of repeated transmission may be further combined as: Enter to get the split pattern.
  • the segmentation pattern may also be determined simultaneously with the m RVs through the same algorithm, or may be determined through a different algorithm with the m RVs, which is not limited in this embodiment of the present application. For example, as shown in FIG. 11 , which shows a schematic diagram of resource division provided by an embodiment of the present application, the schematic diagram of resource division can be used as a division pattern.
  • the number of REs contained in each RE set may or may not be the same; the subcarriers corresponding to each RE set may be different. It can be continuous or discontinuous; a subcarrier can correspond to one RE set or multiple RE sets, thus realizing flexible division of resources for repeated transmission, effectively adapting to the requirements of different configurations for transmission resources, and improving the efficiency of repeated transmission. validity and reliability.
  • FIG. 12 shows a block diagram of a repeated transmission apparatus provided by an embodiment of the present application.
  • the apparatus has the function of implementing the above example of the repeated transmission method.
  • the functions can be implemented by hardware, or can be implemented by hardware executing corresponding software.
  • the apparatus may be the terminal device described above, or may be set in the terminal device; or, the apparatus may be the network device described above, or may be set in the network device.
  • the apparatus 1200 may include: a time slot determination module 1210 , a resource division module 1220 and a data transmission module 1230 .
  • the time slot determination module 1210 is configured to determine n time slots for repeated transmission, where n is a positive integer.
  • the resource division module 1220 is configured to, for the first time slot in the n time slots, divide the first REs in the first time slot based on m RVs to obtain k RE sets, the m is a positive integer, and the k is a positive integer; wherein, the first time slot includes at least one time slot in the n time slots.
  • the data transmission module 1230 is configured to transmit, in the first time slot, data corresponding to the m RVs based on the k RE sets.
  • the m is equal to the k, and the m RVs are in a one-to-one correspondence with the k RE sets.
  • the m is less than the k, and a first RV of the m RVs corresponds to at least two RE sets of the k RE sets.
  • the number of REs included in each of the k RE sets is the first number of REs.
  • the number of REs included in the first RE set in the k RE sets is different from the number of REs included in the second RE set in the k RE sets.
  • the subcarriers occupied by each of the k RE sets are consecutive.
  • subcarriers occupied by at least one RE set in the k RE sets are discontinuous.
  • subcarriers occupied by at least two RE sets in the k RE sets include the first subcarrier.
  • the resource division module 1220 is configured to: determine a division pattern based on the version indication information included in the first RE and the DCI in the first time slot, where the version indication information is used to indicate the The RV corresponding to the initial transmission in the repeated transmission; the first RE in the first time slot is divided according to the division pattern to obtain the k RE sets.
  • determining the division pattern based on the first RE in the first time slot and the version indication information included in the DCI includes: based on the first RE in the first time slot, the repeated transmission The index indication of , and the version indication information determine the division pattern.
  • the index indication of the repeated transmission includes a slot index indication; or, the index indication of the repeated transmission includes a set index indication.
  • the division manners for the first REs in each of the n time slots are the first division manners.
  • the n time slots include a second time slot, and the second time slot includes at least one time slot other than the first time slot in the n time slots; for the The division manner of the first RE in the second time slot is different from the division manner of the first RE in the first time slot.
  • the time slot determining module 1210 is configured to: determine the n time slots based on timing information of DCI and a transmission repetition value, where the timing information of DCI is used to indicate a transmission time slot offset.
  • the time slot determining module 1210 is configured to: start with the time slot indicated by the timing information of the DCI, and determine the time slot indicated by the transmission repetition value for the repeated transmission , the n time slots are obtained.
  • the timing information of the DCI includes first timing information and/or second timing information; wherein the first timing information is used to indicate a transmission slot offset of uplink transmission, and the second timing information The information is used to indicate the transmission slot offset for downlink transmission.
  • the above-mentioned apparatus 1200 further includes: a version determination module 1290, configured to determine, based on the first RE in the first time slot, the transmission repetition value and the version indication information included in the DCI, For the m RVs, the version indication information is used to indicate the RV corresponding to the initial transmission in the repeated transmission.
  • a version determination module 1290 configured to determine, based on the first RE in the first time slot, the transmission repetition value and the version indication information included in the DCI, For the m RVs, the version indication information is used to indicate the RV corresponding to the initial transmission in the repeated transmission.
  • the above-mentioned resource dividing module 1220 is configured to: based on the number of RVs of the m RVs, divide the first REs in the first time slot to obtain the k RE sets.
  • the above resource partitioning module 1220 is further configured to: determine the mapping relationship between the m RVs and the k RE sets based on the RV identifiers of the m RVs.
  • the above-mentioned resource partitioning module 1220 is configured to: based on the number of RVs and RV identifiers of the m RVs, partition the first RE in the first time slot to obtain the set of k REs, and the mapping relationship between the m RVs and the k RE sets.
  • the data transmission module 1230 includes: a parameter determination unit 1231 for determining encoding parameters; a data encoding unit 1233 for encoding the data to be transmitted according to the encoding parameters to obtain transmission code block; the rate matching unit 1235 is configured to perform rate matching on the transmission code block based on the m RVs to obtain data corresponding to the m RVs; the data transmission unit 1237 is configured to perform rate matching based on the k RVs RE set, and transmit data corresponding to the m RVs.
  • the n time slots include a third time slot, and the third time slot includes at least one time slot in the n time slots; the parameter determining unit 1231 is configured to: based on the The first RE in the third time slot is used to determine the encoding parameter.
  • the parameter determining unit 1231 is configured to: determine the encoding parameter based on a third RE set in the k RE sets; wherein the number of REs included in the third RE set is The set with the largest number of REs included in the k RE sets, and the time slot occupied by the third RE set includes at least one time slot in the n time slots.
  • the encoding parameters include a code rate and/or a size of the transport code block.
  • the repeated transmission is stopped.
  • the apparatus 1200 further includes: a data demodulation module 1240, configured to demodulate the data corresponding to the m RVs to obtain a data solution corresponding to the first time slot
  • the data merging module 1250 is used for merging the data demodulation results corresponding to the w time slots to obtain the merged data, where the w is a positive integer less than or equal to the n; the decoding processing module 1260, using for decoding the combined data.
  • the apparatus 1200 further includes: a time slot calculation module 1270, configured to obtain a feedback time slot based on the DCI timing information and the time slot when the repeated transmission is stopped; a feedback transmission module 1280: In the feedback time slot, transmit feedback information, where the feedback information is used to indicate a data reception situation.
  • a time slot calculation module 1270 configured to obtain a feedback time slot based on the DCI timing information and the time slot when the repeated transmission is stopped
  • a feedback transmission module 1280 In the feedback time slot, transmit feedback information, where the feedback information is used to indicate a data reception situation.
  • the timing information of the DCI includes third timing information, where the third timing information is used to indicate a transmission slot offset of the feedback information.
  • the transmitting end divides the REs that can be used for repeated transmission in the time slot, and simultaneously transmits data corresponding to multiple redundant versions based on the divided REs, thereby realizing the Data transmission corresponding to multiple redundancy versions is performed in one time slot.
  • the embodiment of the present application realizes that the actual number of repeated transmissions is increased as much as possible under the configuration of a limited transmission repetition value, which effectively avoids The number of transmission time slots does not reach the transmission repetition value, and the ideal coverage enhancement effect cannot be achieved, which solves the problem of limited coverage and ensures effective repeated transmission between the terminal device and the network device.
  • the embodiment of the present application divides the REs that can be used for repeated transmission in the time slot.
  • the original RE design in the time slot improves the compatibility and adaptability of repeated transmission.
  • the device provided in the above embodiment realizes its functions, only the division of the above functional modules is used as an example for illustration. In practical applications, the above functions can be allocated to different functional modules according to actual needs. That is, the content structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • FIG. 14 shows a schematic structural diagram of a device 140 provided by an embodiment of the present application.
  • the device can be used to execute the above-mentioned repeated transmission method.
  • the device is a terminal device; or, the device is a network device.
  • the device 140 may include: a processor 141, and a transceiver 142 connected to the processor 141; wherein:
  • the processor 141 includes one or more processing cores, and the processor 141 executes various functional applications and information processing by running software programs and modules.
  • Transceiver 142 includes a receiver and a transmitter.
  • transceiver 142 is a communication chip.
  • device 140 also includes: a memory and a bus.
  • the memory is connected to the processor through a bus.
  • the memory can be used to store a computer program, and the processor is used to execute the computer program, so as to implement the various steps in the above method embodiments.
  • volatile or non-volatile storage devices include but are not limited to: RAM (Random-Access Memory, random access memory) and ROM (Read-Only Memory), EPROM (Erasable Programmable Read-Only Memory, Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory) ), flash memory or other solid-state storage technology, CD-ROM (Compact Disc Read-Only Memory), DVD (Digital Video Disc, high-density digital video disc) or other optical storage, tape cassettes, magnetic tape, disk storage or other magnetic storage devices. in:
  • the processor 141 is configured to determine n time slots for repeated transmission, where n is a positive integer.
  • the processor 141 is further configured to, for the first time slot in the n time slots, divide the first REs in the first time slot based on m RVs to obtain k RE sets, where The m is a positive integer, and the k is a positive integer; wherein, the first time slot includes at least one time slot in the n time slots.
  • the transceiver 142 is configured to transmit, in the first time slot, data corresponding to the m RVs based on the k RE sets.
  • the m is equal to the k, and the m RVs are in a one-to-one correspondence with the k RE sets.
  • the m is less than the k, and a first RV of the m RVs corresponds to at least two RE sets of the k RE sets.
  • the number of REs included in each of the k RE sets is the first number of REs.
  • the number of REs included in the first RE set in the k RE sets is different from the number of REs included in the second RE set in the k RE sets.
  • the subcarriers occupied by each of the k RE sets are consecutive.
  • subcarriers occupied by at least one RE set in the k RE sets are discontinuous.
  • subcarriers occupied by at least two RE sets in the k RE sets include the first subcarrier.
  • the processor 141 is configured to: determine a division pattern based on the version indication information included in the first RE in the first time slot and the DCI, where the version indication information is used to indicate the repetition The RV corresponding to the initial transmission in the transmission; the first RE in the first time slot is divided according to the division pattern to obtain the k RE sets.
  • determining the division pattern based on the first RE in the first time slot and the version indication information included in the DCI includes: based on the first RE in the first time slot, the repeated transmission The index indication of , and the version indication information determine the division pattern.
  • the index indication of the repeated transmission includes a slot index indication; or, the index indication of the repeated transmission includes a set index indication.
  • the division manners for the first REs in each of the n time slots are the first division manners.
  • the n time slots include a second time slot, and the second time slot includes at least one time slot other than the first time slot in the n time slots; for the The division manner of the first RE in the second time slot is different from the division manner of the first RE in the first time slot.
  • the processor 141 is configured to: determine the n time slots based on timing information of DCI and a transmission repetition value, where the timing information of DCI is used to indicate a transmission slot offset.
  • the processor 141 is configured to: start with the time slot indicated by the timing information of the DCI, determine the time slot indicated by the transmission repetition value for the repeated transmission, and obtain the n time slots.
  • the timing information of the DCI includes first timing information and/or second timing information; wherein the first timing information is used to indicate a transmission slot offset of uplink transmission, and the second timing information The information is used to indicate the transmission slot offset for downlink transmission.
  • the processor 141 is configured to: determine the m RVs based on the first RE in the first time slot, the transmission repetition value, and the version indication information included in the DCI, where the version indicates The information is used to indicate the RV corresponding to the initial transmission in the repeated transmission.
  • the processor 141 is configured to: based on the RV numbers of the m RVs, divide the first REs in the first time slot to obtain the k RE sets.
  • the processor 141 is further configured to: determine the mapping relationship between the m RVs and the k RE sets based on the RV identifiers of the m RVs.
  • the processor 141 is configured to: based on the number of RVs and the RV identifiers of the m RVs, divide the first RE in the first time slot to obtain the set of k REs, and the mapping relationship between the m RVs and the k RE sets.
  • the processor 141 is further configured to: determine an encoding parameter; encode the data to be transmitted according to the encoding parameter to obtain a transmission code block; based on the m RVs, perform a rate calculation on the transmission code block matching, to obtain data corresponding to the m RVs; the transceiver 142 is configured to transmit data corresponding to the m RVs based on the k RE sets.
  • the n time slots include a third time slot, and the third time slot includes at least one time slot in the n time slots; the processor 141 is further configured to: based on the The first RE in the third time slot is used to determine the encoding parameter.
  • the processor 141 is further configured to: determine the encoding parameter based on a third RE set in the k RE sets; wherein the number of REs included in the third RE set is The set with the largest number of REs included in the k RE sets, and the time slot occupied by the third RE set includes at least one time slot in the n time slots.
  • the encoding parameters include a code rate and/or a size of the transport code block.
  • the repeated transmission is stopped.
  • the processor 141 is further configured to: demodulate the data corresponding to the m RVs to obtain a data demodulation result corresponding to the first time slot; combine the corresponding data of the w time slots From the data demodulation result, combined data is obtained, and the w is a positive integer less than or equal to the n; the combined data is decoded.
  • the processor 141 is further configured to: obtain a feedback time slot based on the timing information of the DCI and the time slot when the repeated transmission is stopped; the transceiver 142 is further configured to: in the feedback In the time slot, feedback information is transmitted, and the feedback information is used to indicate the data reception situation.
  • the timing information of the DCI includes third timing information, where the third timing information is used to indicate a transmission slot offset of the feedback information.
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the storage medium, and the computer program is used to be executed by a processor of a device, so as to implement the above-mentioned repeated transmission method.
  • the above-mentioned device is a terminal device; or, the above-mentioned device is a network device.
  • Embodiments of the present application further provide a chip, where the chip includes a programmable logic circuit and/or program instructions, and when the chip runs on a device, it is used to implement the above-mentioned repeated transmission method.
  • the above-mentioned device is a terminal device; or, the above-mentioned device is a network device.
  • the embodiments of the present application also provide a computer program product, which is used to implement the above-mentioned repeated transmission method when the computer program product runs on the device.
  • the above-mentioned device is a terminal device; or, the above-mentioned device is a network device.
  • Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
  • a storage medium can be any available medium that can be accessed by a general purpose or special purpose computer.

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Abstract

La présente demande se rapporte au domaine technique des communications. Un procédé et un appareil de transmission répétée, et un dispositif et un support de stockage sont divulgués. Le procédé fait appel aux étapes suivantes : la détermination de n créneaux pour une transmission répétée ; pour un premier créneau dans les n créneaux, la segmentation d'un premier RE dans le premier créneau sur la base de m RV, de façon à obtenir k ensembles de RE ; et dans le premier créneau, la transmission, sur la base des k ensembles de RE, de données correspondant aux m RV. Au moyen des modes de réalisation de la présente demande, des données correspondant à une pluralité de versions redondantes sont transmises dans un créneau, ce qui permet d'augmenter le nombre réel de transmissions répétées autant que possible sous la configuration d'une valeur de répétition de transmission limitée, résolvant le problème de couverture limitée, et assurant une transmission répétée efficace entre un dispositif terminal et un dispositif de réseau. De plus, au moyen des modes de réalisation de la présente demande, l'efficacité de la transmission répétée est améliorée, et la compatibilité et l'adaptabilité de la transmission répétée sont améliorées.
PCT/CN2020/134672 2020-12-08 2020-12-08 Procédé et appareil de transmission répétée, et dispositif et support de stockage WO2022120600A1 (fr)

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