WO2022183765A1 - 信息传输方法、装置、设备和存储介质 - Google Patents
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- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
- H04W72/232—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal the control data signalling from the physical layer, e.g. DCI signalling
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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
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- H04L27/26—Systems using multi-frequency codes
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- H04L27/2647—Arrangements specific to the receiver only
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- H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
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- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements 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
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Definitions
- the present application relates to the field of communication technologies, for example, to an information transmission method, apparatus, device, and storage medium.
- a new radio interface When a new radio interface (New Radio, NR) operates in a high frequency band (greater than 52.6 GHz), a large sub-carrier space (Sub-Carrier Space, SCS) (such as 480 kHz and 960 kHz) is usually used. At this time, the duration of a time slot in the time domain will be very short. If the Physical Downlink Control Channel (PDCCH) still adopts the transmission method in the related art, that is, if it is transmitted on less than or equal to 3 OFDM symbols, the time Very short-lived, poor coverage and reduced reliability.
- PDCCH Physical Downlink Control Channel
- the present application provides information transmission methods, apparatuses, devices and storage media.
- an embodiment of the present application provides an information transmission method, and the method is applied to a first communication node, including:
- the physical downlink control channel PDCCH is detected on consecutive OFDM symbols in one slot or multiple slots.
- an embodiment of the present application provides an information transmission method, and the method is applied to a second communication node, including:
- the physical downlink control channel PDCCH is sent on consecutive OFDM symbols of one time slot or multiple time slots, so that the first communication node detects the PDCCH.
- an embodiment of the present application provides an information transmission apparatus, where the apparatus is configured on a first communication node, including:
- the detection module is configured to detect the physical downlink control channel PDCCH on a time slot or multiple consecutive OFDM symbols of multiple time slots.
- an embodiment of the present application provides an information transmission apparatus, where the apparatus is configured on a second communication node, including:
- the sending module is configured to send the physical downlink control channel PDCCH on a time slot or multiple consecutive OFDM symbols of multiple time slots, so that the first communication node detects the PDCCH.
- an information transmission device including:
- processors one or more processors
- memory configured to store one or more programs
- the one or more processors When the one or more programs are executed by the one or more processors, the one or more processors implement the information transmission method described in any one of the above embodiments.
- an embodiment of the present application provides a computer storage medium, where a computer program is stored in the computer storage medium, and when the computer program is executed by a processor, the information transmission method according to any one of the foregoing embodiments is implemented .
- FIG. 3 is a schematic structural diagram of a resource unit provided by an embodiment of the present application.
- FIG. 4 is a schematic structural diagram of another resource unit provided by an embodiment of the present application.
- FIG. 5 is a schematic structural diagram of another resource unit provided by an embodiment of the present application.
- FIG. 6 is a schematic diagram of configuring different numbers of symbols in the next PDCCH under different SCSs provided by an embodiment of the present application;
- FIG. 7 is a schematic diagram of mapping one PDCCH to 4 OFDM symbols provided by an embodiment of the present application.
- FIG. 8 is a schematic diagram of mapping one PDCCH to 8 OFDM symbols provided by an embodiment of the present application.
- FIG. 9 is a schematic structural diagram of another resource unit provided by an embodiment of the present application.
- FIG. 10 is a schematic diagram of an information transmission apparatus provided by an embodiment of the present application.
- FIG. 11 is a schematic diagram of an information transmission apparatus provided by an embodiment of the present application.
- FIG. 12 is a schematic diagram of an information transmission device provided by an embodiment of the present application.
- GSM Global System of Mobile communication
- CDMA Code Division Multiple Access
- Wideband Code Division Multiple Access Wideband Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- LTE-A Advanced Long Term Evolution
- UMTS Universal Mobile Telecommunication System
- 5G fifth generation mobile communication technology
- the base station may be a device capable of communicating with a user terminal.
- the base station can be any device with wireless transceiver function. Including but not limited to: base station NodeB, evolved base station eNodeB, base station in 5G communication system, base station in future communication system, access node in WiFi system, wireless relay node, wireless backhaul node, etc.
- the base station may also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario; the base station may also be a small cell, a transmission reference point (transmission reference point, TRP), etc., which are not limited in the embodiments of the present application.
- a 5G base station is used as an example for description.
- the user terminal is a device with a wireless transceiver function.
- User terminals can be deployed on land, including indoor or outdoor, hand-held, wearable or vehicle-mounted; can also be deployed on water (such as ships, etc.); can also be deployed in the air (such as aircraft, balloons and satellites, etc.).
- the user terminal may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal, an augmented reality (Augmented Reality, AR) terminal, an industrial control (industrial control) wireless terminals in ), wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, wireless terminals in transportation safety , wireless terminals in smart cities, wireless terminals in smart homes, and so on.
- the embodiments of the present application do not limit application scenarios.
- a user terminal may also sometimes be referred to as a terminal, access terminal, UE unit, UE station, mobile station, mobile station, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE proxy, or UE device, or the like.
- the embodiments of the present application are not limited.
- a new radio interface When a new radio interface (New Radio, NR) operates in a high frequency band (greater than 52.6 GHz), a large sub-carrier space (Sub-Carrier Space, SCS) (such as 480 kHz and 960 kHz) is usually used. At this time, the duration of a time slot in the time domain will be very short. If the Physical Downlink Control Channel (PDCCH) still adopts the transmission method in the related art, that is, if it is transmitted on less than or equal to 3 OFDM symbols, the time Very short-lived, poor coverage and reduced reliability.
- PDCCH Physical Downlink Control Channel
- one PDCCH is used to schedule multiple Physical Downlink Shared Channels (PDSCH) and one PDCCH is used to schedule multiple Physical Uplink Shared Channels (PUSCH) scheduling mechanisms, as well as multiple time slots ( slot) PDCCH detection opportunity strategy, so once the downlink control information (Downlink Control Information, DCI) is lost, it will have a serious impact on data scheduling and transmission, which is not conducive to improving data transmission efficiency, and has a great impact on system performance.
- PDSCH Physical Downlink Shared Channels
- PUSCH Physical Uplink Shared Channels
- the number of orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiplexing, OFDM) symbols occupied by the PDCCH of NR is configured by the duration in the configuration control resource set (CORESET), and the value range is is is ⁇ 1, 2, 3 ⁇ , that is, one PDCCH is mapped to 3 OFDM symbols at most.
- the demodulation reference signal (Demodulation Reference Signal, DMRS) and the PDCCH are multiplexed by means of FDM, that is, the DMRS and the PDCCH respectively occupy different resource elements (Resource Element, RE) of the same OFDM symbol.
- the SCS of the PDCCH and the PDSCH/PUSCH are the same.
- the base station For areas with regulatory requirements for unlicensed carriers, the base station must perform Listen Before Talk (LBT) before sending the PDCCH. If the LBT fails, the base station cannot send the PDCCH, and the base station can only send the PDCCH when the LBT is successful.
- LBT Listen Before Talk
- an embodiment of the present application provides an information transmission method, and the information transmission method may be executed by an information processing apparatus, and the information transmission apparatus may be implemented by means of software and/or hardware.
- the information transmission method is applied to a first communication node, and the first communication node may be any of the foregoing terminals, which is not limited in this embodiment.
- the information processing method provided by the embodiment of the present application mainly includes step S11 .
- detecting the PDCCH on consecutive OFDM symbols in one slot or multiple slots includes:
- the PDCCH is detected on consecutive M OFDM symbols of N time slots, where N is an integer greater than or equal to 1, and M is a positive integer greater than 3.
- detecting the physical downlink control channel PDCCH on a time slot or multiple consecutive OFDM symbols of multiple time slots includes:
- the repetitively transmitted PDCCH is detected on multiple OFDM symbols of one slot or multiple slots.
- the repetition times of the PDCCH of different SCS configurations are different.
- the time domain repetition times configuration information is included in the PDCCH high layer configuration parameter.
- the value of the repetition factor that can be configured for different SCSs is different.
- the repeated transmission of the PDCCH may occupy one or more slots at most.
- the method further includes: determining that the PDCCH is transmitted in a repeated manner by one of the following methods:
- the configured search space searchspace includes the PDCCH repetition factor.
- the UE first determines the number of OFDM symbols occupied by a PDCCH without repetition according to the corresponding PDCCH symbol number parameter duration in the CORESET, and then repeatedly receives the PDCCH according to the repetition factor parameter configured in the search space. , and then combine and demodulate the PDCCH of each repeated data.
- the CORESET configuration includes a repetition factor parameter in addition to the duration parameter.
- a repetition factor parameter is added to the search space configuration, indicating the number of consecutive repetitions of the PDCCH.
- detecting the physical downlink control channel PDCCH on a time slot or multiple consecutive OFDM symbols of multiple time slots includes:
- the PDCCH transmitted by non-repetitive mapping is detected on multiple OFDM symbols in one slot.
- the maximum number of PDCCH symbols supported by different SCSs is different.
- the duration in the CORESET configuration of the control resource set is any integer between 3 and 14.
- the value range of the duration in the CORESET configuration in the related art is modified.
- the configuration value range of the duration corresponding to different SCSs is different.
- one PDCCH is mapped to multiple OFDM symbols, including one of the following manners:
- the PDCCH and the scheduled PDSCH or PUSCH use different SCSs.
- the PDCCH carries beam indication information, where the beam indication information is used to indicate a beam for data transmission and reception.
- an embodiment of the present application provides an information transmission method, and the information transmission method may be performed by an information processing apparatus, and the information transmission apparatus may be implemented by means of software and/or hardware.
- the information processing method is applied to a second communication node, and the second communication node may be any of the foregoing base stations, which is not limited in this embodiment.
- the information processing method provided by the embodiment of the present application mainly includes step S21 .
- sending the physical downlink control channel PDCCH on a time slot or multiple consecutive OFDM symbols of multiple time slots includes one of the following ways:
- the PDCCH is mapped to multiple OFDM symbols in one slot in a non-repetitive manner.
- the method further includes:
- the PDCCH adopts the default SCS.
- the PDCCH adopts the default SCS.
- 120kHz is not the same as the SCS of the configured BWP
- the SCS of the PDSCH is still the same as the SCS of the configured BWP. Therefore, when the SCS configured by the activated BWP is not 120kHz, the downlink transmission adopts the method of Mixed numerology.
- the method further includes:
- the same downlink control information DCI is sent to the same first communication node through different PDCCHs by means of multiple TRPs.
- the same downlink control information DCI is sent to the same first communication node through different PDCCHs by means of multiple TRPs, including one of the following ways:
- Different TRPs send the PDCCH to the same first communication node by means of time division multiplexing mode TDM;
- Different TRPs send the same DCI content to the same first communication node through different PDCCHs by means of FDM.
- the OFDM symbols occupied by the PDCCH in the entire time domain are more sparse and the time is very short.
- the transmission structure of the downlink channel needs to be modified.
- the structure of downlink control and services within one RU (0.125 ms) may be as shown in Figure 4 below. That is, one PDCCH can be mapped to more than 3 consecutive symbols. Or consider some other PDCCH coverage and reliability improvement methods.
- Method 1 The PDCCH is sent on multiple consecutive OFDM symbols on one or more slots in a repeated manner.
- the maximum number of PDCCH symbols supported by different SCSs is different, and the repetition times of PDCCHs configured by different SCSs are different.
- Method 2 The PDCCH is mapped to more than 3 consecutive OFDM symbols on one slot in a non-repetitive manner.
- the maximum number of PDCCH symbols supported by different SCSs is different, and the PDCCH repetition times configured by different SCSs are different.
- the number of symbols occupied by the PDCCH may be 4, 8, or 12 (according to the original number of symbols occupied by the PDCCH is 1 to 3).
- the number of symbols occupied by the PDCCH can be 8, 16, or 24.
- it also includes increasing the number of symbols of CORESET.
- the PDCCH structure is extended over more than 3 OFDM symbols in one of the following ways.
- Manner 1 Modify the number of REGs included in the original CCE and the number of REGs included in the REG bundle.
- a REG bundle contains REGs
- a CCE also contains REGs, where m and n are positive integers greater than 1.
- Mode 2 The number of REGs included in the CCE is not modified, and the CCE aggregation level supported by one PDCCH is limited, so that one PDCCH occupies an integer number of REG bundles. At the same time, the duration in the high-level configuration CORESET is
- Method 3 Modify the REG number to give priority to the frequency domain.
- Method 3 No matter how many SCSs are configured with BWP, the PDCCH adopts the default SCS.
- the SCS configured by the activated BWP is not 120 kHz, the downlink transmission adopts the sending mode of mixed SCS.
- Method 4 The same PDCCH is sent to the same UE by means of multiple TRPs.
- transmission modes between multiple TRPs include FDM and TDM.
- the PDCCH and the corresponding DMRS can be transmitted on different OFDM symbols by means of TDM, so as to improve the channel estimation performance of the DMRS, thereby also improving the demodulation performance of the PDCCH.
- the PDCCH carries beam indication information, and through the beam indication information, the UE can receive downlink data on the beam, or perform uplink channel sharing.
- This embodiment describes the method for improving the PDCCH coverage performance by continuously sending the PDCCH on one or more slots in a repeated manner mentioned in the above method 1.
- the time domain repetition times configuration information is included in the PDCCH high layer configuration parameter. For example, the value of the repetition factor that can be configured for different SCSs is different.
- the repeated transmission of the PDCCH may occupy one or more slots at most.
- a repetition factor parameter is added in the search space (searchspace) configuration to indicate the number of consecutive repetitions of the PDCCH.
- searchspace search space
- the set of configurable repetition factors is ⁇ 1, 2, 4, 8 ⁇ , for 480kHz SCS PDCCH
- the set of configurable repetition factors is ⁇ 4, 8, 16, 32 ⁇ , for 960kHz
- the set of configurable repetition factors is ⁇ 8, 16, 32, 64 ⁇ .
- the UE first determines the number of OFDM symbols occupied by a PDCCH without repetition according to the corresponding PDCCH symbol number parameter duration in the CORESET, and then repeatedly receives the PDCCH according to the repetition factor parameter configured in the searchspace, and then combines the repeated data. Demodulate PDCCH.
- the PDCCH is transmitted in a repeated manner for 8 consecutive symbols in a slot, and then starts from the third symbol. Repeated transmission 3 times, that is, the PDCCH is repeatedly transmitted 4 times in one slot. If the duration value is configured as 2 and the repetition factor is configured as 5, the PDCCH is repeatedly sent on 10 OFDM symbols in units of 2 symbols, as shown in Figure 5 below.
- the CORESET configuration includes the repetition factor parameter in addition to the duration parameter.
- the parameter that contains the number of repetitions in CORESET is 3, which means that CORESET will be repeated 3 times in a row.
- the original design that one CCE of the PDCCH contains 6 REGs may not be modified, and the PDCCH is repeatedly transmitted according to the unit of the value configured in the duration to improve the coverage performance of the PDCCH.
- This embodiment describes a configuration implementation method in which the PDCCH is mapped to more than 3 consecutive OFDM symbols on one slot in a non-repetitive manner in the above-mentioned method 2.
- the value range of the duration in the CORESET configuration in the related art needs to be modified.
- the configuration value range of the duration corresponding to different SCSs is different.
- the current 1-3 OFDM symbols can be modified to 2-14 OFDM symbols, that is, the PDCCH can occupy a maximum of 14 OFDM symbols.
- the configuration range of duration can be ⁇ 4 ⁇ 14*n ⁇
- the configuration range of duration can be ⁇ 8 ⁇ 14 ⁇ m ⁇ , where m and n are positive integers and less than or equal to 4.
- the number of symbols that can be configured on the next PDCCH for different SCSs may be different.
- the slashed box represents the number of OFDM symbols occupied by the PDCCH
- the horizontal box represents the OFDM symbols occupied by the PDSCH.
- the number of symbols occupied by PDCCH may be two slots under 960kHz, and the number of symbols occupied by PDCCH may be one slot and 14 OFDM symbols under 480kHz.
- the number of symbols occupied by PDCCH may be 6 OFDM symbols, and for 120 kHz, the number of symbols occupied by PDCCH may be 3 OFDM symbols.
- the PDCCH will be finally mapped to the resources of the corresponding number of symbols according to the configuration information, and the specific mapping method will be specifically described in the following embodiments.
- This configuration can improve the transmission coverage performance of the PDCCH.
- PDCCH performs resource mapping in units of REG bundles.
- a REG bundle uses the same precoding matrix.
- a PDCCH occupies 4 symbols. If the CCE aggregation level is 1, it is necessary to modify a CCE to include 4 or 8 RGEs, so that a PDCCH can be mapped to 4 OFDM symbols, as shown in Figure 7. Or it is not modified that a CCE contains 6 REGs, but the CCE aggregation level of a PDCCH supports more than 2, that is, a PDCCH occupies at least 12 REGs, so that a PDCCH can also be mapped to 4 OFDM symbols.
- a CCE contains at least 8 REGs, or the size of a CCE is not modified, but the aggregation level supported by the PDCCH must be above 4, that is, a PDCCH contains 3 REG bundles.
- one PDCCH can be mapped to transmission of more than 3 OFDM symbols in one of the following three ways:
- Manner 1 Modify the number of REGs included in the original CCE and the number of REGs included in the REG bundle.
- a REG bundle contains REGs
- a CCE also contains REGs, where m and n are positive integers greater than 1.
- Mode 2 The number of REGs included in the CCE is not modified, and the CCE aggregation level supported by one PDCCH is limited, so that one PDCCH occupies an integer number of REG bundles.
- Method 3 Modify the REG number to give priority to the frequency domain.
- a PDCCH can be mapped to more than 3 OFDM symbols in a non-repetitive manner.
- This embodiment describes another method for improving PDCCH coverage.
- Mixed numerology For the downlink transmission in the high frequency band, Mixed numerology can be used, that is, the PDCCH can use the default 120kHz SCS regardless of the SCS of other channels.
- PDCCH and PDSCH use different SCSs, that is, Mixed numerology.
- Implementation methods include:
- the PDCCH adopts the default SCS, such as 120 kHz, which is not the same as the SCS of the configured BWP, and the SCS of the PDSCH is still the same as the SCS of the configured BWP. Therefore, when the SCS configured by the activated BWP is not 120kHz, the downlink transmission adopts the method of Mixed numerology.
- the SCS is configured when the BWP is configured. If all channel signals are not configured separately, this unified SCS is used.
- the PDCCH high frequency is 120k by default, and the PDSCH is 480k.
- This embodiment describes how to improve the reliability of the PDCCH by using the method of multiple TRPs.
- Sending methods include:
- Method 1 Different TRPs send the PDCCH to the same UE on different symbols or slots by means of TDM.
- TRP1 sends PDCCH1 to the UE on symbols 0-2
- TRP2 sends PDCCH2 to the UE on symbols 3-5
- TRP3 sends PDCCH3 to the UE on symbols 6-8.
- the DCI contents carried by the three PDCCHs are exactly the same, for example, it may be one DCI for scheduling multiple PDSCH transmissions.
- the UE performs combined demodulation after receiving the three PDCCHs, and the reliability of the PDCCHs can be improved by this method.
- Method 2 Different TRPs send the same DCI content to the UE through FDM.
- the FDM scheme includes different carriers, different BWPs, or different REGs.
- TRP1 sends PDCCH1 to the UE on BWP1
- TRP2 sends PDCCH2 to the UE on BWP2
- TRP3 sends PDCCH3 to the UE on BWP3.
- the DCI contents carried by the three PDCCHs are exactly the same, for example, one DCI that schedules multiple PUSCH transmissions.
- the UE performs combined demodulation after receiving the three PDCCHs, and the reliability of the PDCCHs can be improved by this method.
- This embodiment describes the beam configuration of the PDCCH.
- each CORESET can be configured with multiple TCI states, and the base station can perform LBT on beams corresponding to multiple TCI states before sending PDCCH on unlicensed carriers, or according to The priority sequence performs LBT on the beams corresponding to multiple TCI states in turn, whichever succeeds sends the PDCCH on which beam, and the base station notifies the subordinate UE of the beam information through DCI 2_0.
- whether the base station includes beam indication information in DCI 2_0 is configured through RRC parameters.
- this parameter is configured, the location of the information in the DCI will also be configured.
- the UE After the UE receives the information, it will receive downlink data in the corresponding beam direction or can do channel occupancy sharing to transmit some uplink data.
- an embodiment of the present application provides an information transmission apparatus, and the information transmission apparatus may be implemented by means of software and/or hardware.
- the information transmission apparatus is configured in a first communication node, and the first communication node may be any terminal described above, which is not limited in this embodiment.
- the information processing apparatus mainly includes a detection module 101 .
- the detection module 101 is configured to detect the physical downlink control channel PDCCH on a time slot or multiple consecutive OFDM symbols of multiple time slots.
- detecting the PDCCH on consecutive OFDM symbols in one slot or multiple slots includes:
- the PDCCH is detected on consecutive M OFDM symbols of N time slots, where N is an integer greater than or equal to 1, and M is a positive integer greater than 3.
- detecting the physical downlink control channel PDCCH on a time slot or multiple consecutive OFDM symbols of multiple time slots includes:
- the repetitively transmitted PDCCH is detected on multiple OFDM symbols of one slot or multiple slots.
- the repetition times of the PDCCH of different SCS configurations are different.
- the method further includes: determining that the PDCCH is transmitted in a repeated manner by one of the following methods:
- the configured search space searchspace includes the PDCCH repetition factor.
- detecting the physical downlink control channel PDCCH on a time slot or multiple consecutive OFDM symbols of multiple time slots includes:
- the PDCCH transmitted by non-repetitive mapping is detected on multiple OFDM symbols in one slot.
- the maximum number of PDCCH symbols supported by different SCSs is different.
- the duration in the CORESET configuration of the control resource set is any integer between 3 and 14.
- one PDCCH is mapped to multiple OFDM symbols, including one of the following manners:
- the PDCCH and the scheduled PDSCH or PUSCH use different SCSs.
- the PDCCH carries beam indication information, where the beam indication information is used to indicate a beam used for data transceiving.
- the information transmission apparatus provided in this embodiment can execute the information transmission method provided by any embodiment of this application, and has corresponding functional modules and beneficial effects for executing the method.
- the information transmission apparatus provided in this embodiment can execute the information transmission method provided by any embodiment of this application, and has corresponding functional modules and beneficial effects for executing the method.
- the units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized;
- the specific names of the functional units are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application.
- an embodiment of the present application provides an information transmission apparatus, and the information transmission apparatus may be implemented by means of software and/or hardware.
- the information transmission apparatus is configured in the second communication node, and the first communication node may be any of the foregoing base stations, which is not limited in this embodiment.
- the information processing apparatus mainly includes a sending module 111 .
- the sending module 111 is configured to send the physical downlink control channel PDCCH in one time slot or multiple consecutive OFDM symbols in multiple time slots, so that the first communication node detects the PDCCH.
- the physical downlink control channel PDCCH is sent on a time slot or multiple consecutive OFDM symbols of multiple time slots, including one of the following ways:
- the PDCCH is mapped to multiple OFDM symbols in one slot in a non-repetitive manner.
- the method further includes:
- the PDCCH adopts the default SCS.
- the method further includes:
- the same downlink control information DCI is sent to the same first communication node through different PDCCHs by means of multiple TRPs.
- the same downlink control information DCI is sent to the same first communication node through different PDCCHs by means of multiple TRPs, including one of the following ways:
- Different TRPs send the PDCCH to the same first communication node by means of TDM;
- Different TRPs send the same DCI content to the same first communication node through different PDCCHs by means of FDM.
- the information transmission apparatus provided in this embodiment can execute the information transmission method provided by any embodiment of this application, and has corresponding functional modules and beneficial effects for executing the method.
- the information transmission apparatus provided in this embodiment can execute the information transmission method provided by any embodiment of this application, and has corresponding functional modules and beneficial effects for executing the method.
- the units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be realized;
- the specific names of the functional units are only for the convenience of distinguishing from each other, and are not used to limit the protection scope of the present application.
- FIG. 12 is a schematic structural diagram of a device provided by an embodiment of the present application.
- the device includes a processor 121 , a memory 122 , an input device 123 , an output device 124 and Communication device 1212; the number of processors 121 in the device may be one or more, and one processor 121 is taken as an example in FIG. 12; For connection in other ways, in Figure 12, the connection through the bus is taken as an example.
- the memory 122 may be used to store software programs, computer-executable programs, and modules, such as program instructions/modules corresponding to the methods in the embodiments of the present application.
- the processor 121 executes various functional applications and data processing of the device by running the software programs, instructions, and modules stored in the memory 122, ie, implements any method provided in the embodiments of the present application.
- the memory 122 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the device, and the like. Additionally, memory 122 may include high-speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device. In some examples, memory 122 may include memory located remotely from processor 121, which may be connected to the device through a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
- the input device 123 is configured to receive input numerical or character information, and to generate key signal input related to user settings and function control of the device.
- the output device 124 may include a display device such as a display screen.
- Communication device 125 may include receivers and transmitters.
- the communication device 125 is configured to transmit and receive information according to the control of the processor 121 .
- the embodiments of the present application further provide a storage medium containing computer-executable instructions, where the computer-executable instructions are used to execute an information transmission method when executed by a computer processor, and the The method is applied to the first communication node, including:
- the physical downlink control channel PDCCH is detected on consecutive OFDM symbols in one slot or multiple slots.
- a storage medium containing computer-executable instructions provided by the embodiments of the present application, the computer-executable instructions of which are not limited to the above-mentioned method operations, and can also execute any of the information transmission methods provided in any embodiment of the present application. related operations.
- the embodiments of the present application further provide a storage medium containing computer-executable instructions, where the computer-executable instructions are used to execute an information transmission method when executed by a computer processor, and the The method is applied to the second communication node, comprising:
- the physical downlink control channel PDCCH is sent on consecutive OFDM symbols of one time slot or multiple time slots, so that the first communication node detects the PDCCH.
- a storage medium containing computer-executable instructions provided by the embodiments of the present application, the computer-executable instructions of which are not limited to the above-mentioned method operations, and can also execute any of the information transmission methods provided in any embodiment of the present application. related operations.
- the storage medium of computer-executable instructions may be a non-transitory computer-readable storage medium.
- the present application can be implemented by means of software and necessary general-purpose hardware, and certainly can also be implemented by hardware.
- the technical solutions of the present application can be embodied in the form of software products in essence or the parts that make contributions to related technologies, and the computer software products can be stored in a computer-readable storage medium, such as a computer floppy disk, Read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), flash memory (FLASH), hard disk or optical disk, etc., including several instructions to make a computer device (which can be a personal computer, A server, or a network device, etc.) executes the methods described in the various embodiments of the present application.
- a computer device which can be a personal computer, A server, or a network device, etc.
- user terminal encompasses any suitable type of wireless user equipment, such as a mobile telephone, portable data processing device, portable web browser or vehicle mounted mobile station.
- the various embodiments of the present application may be implemented in hardware or special purpose circuits, software, logic, or any combination thereof.
- some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software that may be executed by a controller, microprocessor or other computing device, although the application is not limited thereto.
- Embodiments of the present application may be implemented by the execution of computer program instructions by a data processor of a mobile device, eg in a processor entity, or by hardware, or by a combination of software and hardware.
- the computer program instructions may be assembly instructions, instruction set architecture (ISA) instructions, machine instructions, machine dependent instructions, microcode, firmware instructions, state setting data, or source code written in any combination of one or more programming languages or object code.
- ISA instruction set architecture
- the block diagrams of any logic flow in the figures of the present application may represent program steps, or may represent interconnected logic circuits, modules and functions, or may represent a combination of program steps and logic circuits, modules and functions.
- Computer programs can be stored on memory.
- the memory may be of any type suitable for the local technical environment and may be implemented using any suitable data storage technology, such as but not limited to read only memory (ROM), random access memory (RAM), optical memory devices and systems (Digital Versatile Discs). DVD or CD disc) etc.
- Computer-readable media may include non-transitory storage media.
- the data processor may be of any type suitable for the local technical environment, such as, but not limited to, a general purpose computer, special purpose computer, microprocessor, digital signal processor (DSP), application specific integrated circuit (ASIC), programmable logic device (FGPA) and processors based on multi-core processor architectures.
- DSP digital signal processor
- ASIC application specific integrated circuit
- FGPA programmable logic device
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Abstract
Description
Claims (20)
- 一种信息传输方法,所述方法应用于第一通信节点,包括:在一个时隙或多个时隙的连续多个正交频分复用OFDM符号上检测物理下行控制信道PDCCH。
- 根据权利要求1所述的方法,其中,所述在一个时隙或多个时隙的连续多个OFDM符号上检测PDCCH,包括:在N个时隙的连续M个OFDM符号上检测PDCCH,其中,N是大于或等于1的整数,M是大于3的正整数。
- 根据权利要求1所述的方法,其中,所述在一个时隙或多个时隙的连续多个OFDM符号上检测PDCCH,包括:在所述一个时隙或多个时隙的连续多个OFDM符号上检测通过重复方式传输的PDCCH。
- 根据权利要求3所述的方法,其中,对于所述重复方式,不同的子载波间隔SCS配置的PDCCH的重复次数不同。
- 根据权利要求3所述的方法,还包括:通过如下方式之一确定所述PDCCH采用重复的方式进行传输:配置控制资源集CORESET重复参数;配置的搜索空间searchspace中包括PDCCH重复因子。
- 根据权利要求1所述的方法,其中,所述在一个时隙或多个时隙的连续多个OFDM符号上检测PDCCH,包括:在一个时隙的多个OFDM符号上检测通过非重复的映射方式传输的PDCCH。
- 根据权利要求6所述的方法,其中,对于所述非重复的映射方式,不同的SCS所支持的最大PDCCH符号数目不同。
- 根据权利要求6所述的方法,其中,对于所述非重复的映射方式,控制资源集CORESET配置中持续时间取值为3至14之间的任一整数。
- 根据权利要求1所述的方法,其中,所述PDCCH调度的物理下行共享信道PDSCH或物理上行共享信道PUSCH与所述PDCCH采用不同的SCS。
- 根据权利要求1所述的方法,其中,所述PDCCH中携带波束指示信息,所述波束 指示信息用于指示数据收发的波束。
- 一种信息传输方法,应用于第二通信节点,包括:在一个时隙或多个时隙的连续多个正交频分复用OFDM符号上发送物理下行控制信道PDCCH,以使第一通信节点检测到所述PDCCH。
- 根据权利要求12所述的方法,其中,所述在一个时隙或多个时隙的连续多个OFDM符号上发送PDCCH,包括如下方式之一:通过重复的方式在所述一个或多个时隙上连续发送PDCCH;通过非重复的方式将所述PDCCH映射到一个时隙的多个OFDM符号上。
- 根据权利要求12所述的方法,还包括:PDCCH采用默认的子载波间隔SCS。
- 根据权利要求12所述的方法,还包括:通过多传输节点TRP的方式将相同的下行控制信息DCI通过不同的PDCCH发送给同一个第一通信节点。
- 根据权利要求15所述的方法,其中,所述通过多TRP的方式将相同的下行控制信息DCI通过不同的PDCCH发送给同一个第一通信节点,包括如下方式之一:不同TRP通过时分复用TDM的方式将PDCCH发送给同一个第一通信节点;和不同TRP通过频分复用FDM的方式将同一个DCI通过不同的PDCCH发送给同一个第一通信节点。
- 一种信息传输装置,配置于第一通信节点,包括:检测模块,被配置为在一个时隙或多个时隙的连续多个OFDM符号上检测物理下行控制信道PDCCH。
- 一种信息传输装置,配置于第二通信节点,包括:发送模块,被配置为在一个时隙或多个时隙的连续多个OFDM符号上发送物理下行控制信道PDCCH,以使第一通信节点检测到所述PDCCH。
- 一种信息传输设备,包括:一个或多个处理器;存储器,被配置为存储一个或多个程序;当所述一个或多个程序被所述一个或多个处理器执行,使得所述一个或多个处理器实现权利要求1-16中任一项所述的信息传输方法。
- 一种计算机可读存储介质,所述计算机可读存储介质存储有计算机程序,所述计算机程序被处理器执行时实现权利要求1-16中任一项所述的信息传输方法。
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