WO2025129456A1 - Pdcch的接收方法、发送方法、设备及存储介质 - Google Patents

Pdcch的接收方法、发送方法、设备及存储介质 Download PDF

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Publication number
WO2025129456A1
WO2025129456A1 PCT/CN2023/139928 CN2023139928W WO2025129456A1 WO 2025129456 A1 WO2025129456 A1 WO 2025129456A1 CN 2023139928 W CN2023139928 W CN 2023139928W WO 2025129456 A1 WO2025129456 A1 WO 2025129456A1
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Prior art keywords
pdcch
candidate
coreset
candidate pdcch
pdcchs
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PCT/CN2023/139928
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English (en)
French (fr)
Inventor
赵楠德
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to PCT/CN2023/139928 priority Critical patent/WO2025129456A1/zh
Priority to CN202380101670.XA priority patent/CN121773586A/zh
Publication of WO2025129456A1 publication Critical patent/WO2025129456A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path

Definitions

  • the present application relates to the field of mobile communication technology, and in particular to a PDCCH receiving method, sending method, device and storage medium.
  • terminal equipment can receive PDCCH by monitoring candidate PDCCHs in a candidate PDCCH set.
  • the limited transmission power of satellites in the NTN system limits the downlink coverage performance, which may result in the terminal device being unable to detect the PDCCH, affecting the data transmission process.
  • the embodiments of the present application provide a PDCCH receiving method, sending method, device and storage medium.
  • the technical solution is as follows:
  • an embodiment of the present application provides a method for receiving a PDCCH, the method being performed by a terminal device, and the method further comprising:
  • the PDCCH corresponds to one candidate PDCCH in the candidate PDCCH set, or multiple candidate PDCCHs.
  • an embodiment of the present application provides a method for sending a PDCCH, the method being performed by a network device, and the method further comprising:
  • a PDCCH is sent to the terminal device; the PDCCH corresponds to one candidate PDCCH in the candidate PDCCH set, or multiple candidate PDCCHs.
  • an embodiment of the present application provides a PDCCH receiving device, the device comprising:
  • a receiving module configured to receive a PDCCH based on a candidate PDCCH set
  • the PDCCH corresponds to one candidate PDCCH in the candidate PDCCH set, or multiple candidate PDCCHs.
  • an embodiment of the present application provides a PDCCH sending device, the device comprising:
  • the sending module is used to send a PDCCH to a terminal device based on a candidate PDCCH set; the PDCCH corresponds to a candidate PDCCH or multiple candidate PDCCHs in the candidate PDCCH set.
  • an embodiment of the present application provides a terminal device, the terminal device comprising a processor, a memory, and a transceiver;
  • a computer program is stored in the memory, and the processor executes the computer program so that the terminal device implements the above-mentioned PDCCH receiving method or sending method.
  • an embodiment of the present application provides a network device, the network device comprising a processor, a memory, and a transceiver;
  • the memory stores a computer program, and the processor executes the computer program so that the network device implements the above-mentioned PDCCH receiving method or sending method.
  • an embodiment of the present application further provides a computer-readable storage medium, in which a computer program is stored.
  • the computer program is loaded and executed by a processor to implement the above-mentioned PDCCH receiving method or sending method.
  • the present application also provides a chip, which is used to run in a communication device so that the communication device executes the above-mentioned PDCCH receiving method or sending method.
  • the present application provides a computer program product, which includes computer instructions, which are stored in a computer-readable storage medium.
  • a processor of a communication device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the communication device performs the above-mentioned PDCCH receiving method or sending method.
  • the present application provides a computer program, which is executed by a processor of a communication device to implement the above-mentioned PDCCH receiving method or sending method.
  • the embodiments of the present application provide a PDCCH reception scheme and a PDCCH transmission scheme, which transmits and receives the PDCCH based on a candidate PDCCH set.
  • the PDCCH received by the terminal device corresponds to one or more candidate PDCCHs in the candidate PDCCH set.
  • the terminal device can repeatedly transmit the PDCCH or introduce a larger aggregation level, thereby greatly improving the coverage performance of the PDCCH and improving the reliability of data transmission in the NTN system.
  • FIG1 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG2 is a flow chart of a PDCCH receiving method and a PDCCH sending method provided by an embodiment of the present application
  • FIG3 is a schematic diagram of a candidate PDCCH repetition transmission set provided by an exemplary embodiment of the present application.
  • FIG4 is a schematic diagram of a CCE index corresponding to a candidate PDCCH located in a CORESET in a candidate PDCCH repetition transmission set provided by an exemplary embodiment of the present application;
  • FIG5 is a schematic diagram of candidate PDCCHs in a candidate PDCCH repetition transmission set corresponding to discontinuous candidate PDCCHs in a search space set provided by an exemplary embodiment of the present application;
  • FIG6 is a schematic diagram of consecutive candidate PDCCHs in a search space set corresponding to candidate PDCCHs in a candidate PDCCH repetition transmission set provided by an exemplary embodiment of the present application;
  • FIG. 7 is a schematic diagram of a candidate PDCCH in a search space set corresponding to a first candidate PDCCH in a candidate PDCCH repetition transmission set provided by an exemplary embodiment of the present application;
  • FIG8 is a schematic diagram showing that some candidate PDCCHs in a candidate PDCCH repetition transmission set are located outside the CORESET according to an exemplary embodiment of the present application;
  • FIG9 is a schematic diagram of an exemplary embodiment of the present application providing a candidate PDCCH repetition transmission set outside the CORESET using interleaved mapping;
  • FIG10 is a schematic diagram of non-interleaved mapping of candidate PDCCHs outside CORESET in a candidate PDCCH repetition transmission set provided by an exemplary embodiment of the present application;
  • FIG11 is a schematic diagram of determining a PDCCH repetition transmission region according to a CORESET configuration and a PDCCH repetition transmission number provided by an exemplary embodiment of the present application;
  • FIG12 is a block diagram of a PDCCH receiving device provided by an embodiment of the present application.
  • FIG13 is a block diagram of a PDCCH transmitting apparatus provided by an embodiment of the present application.
  • FIG. 14 is a schematic diagram of the structure of a communication device provided in one embodiment of the present application.
  • the network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application.
  • a person of ordinary skill in the art can appreciate that with the evolution of the network architecture 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 communication system involved in an exemplary embodiment of the present application.
  • the communication system includes a network device 110 and a terminal device 120, and/or a terminal device 120 and a terminal device 130, which are not limited in the present application.
  • the network device 110 in the present application provides a wireless communication function, and the network device 110 includes but is not limited to: an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., Home Evolved Node B, or Home Node B, HNB), a baseband unit (BBU), an access point (AP) in a wireless fidelity (Wi-Fi) system, a wireless relay node, a wireless backhaul node, a transmission point (TP) or a transmission and reception point (TRP), etc. It can also be a fifth generation (5G) mobile communication system.
  • eNB evolved Node B
  • RNC radio network controller
  • NB Node B
  • BSC base station controller
  • BTS base transceiver station
  • HNB home base station
  • BBU baseband unit
  • AP access point
  • Wi-Fi wireless fidelity
  • Next Generation Node B or transmission point (TRP or TP), or one or a group of (including multiple antenna panels) antenna panels of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DU), or a base station in a Beyond Fifth Generation (B5G) or 6th Generation (6G) mobile communication system, or a core network (CN), fronthaul, backhaul, radio access network (RAN), network slicing, or a service cell, a primary cell (PCell), a primary secondary cell (PSCell), a special cell (SpCell), a secondary cell (SCell), a neighboring cell, etc. of a terminal device.
  • BBU baseband unit
  • DU distributed unit
  • B5G Fifth Generation
  • 6G 6th Generation
  • CN core network
  • fronthaul, backhaul radio access network
  • RAN radio access network
  • SCell secondary cell
  • the terminal device 120 and/or terminal device 130 in the present application are also called user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, and user device.
  • the terminal includes but is not limited to: handheld devices, wearable devices, vehicle-mounted devices and Internet of Things devices, such as: mobile phones, tablet computers, e-book readers, laptop computers, desktop computers, televisions, game consoles, mobile Internet devices (Mobile Internet Device, MID), augmented reality (Augmented Reality, AR) terminals, virtual reality (Virtual Reality, VR) terminals and mixed reality (Mixed Reality, MR) terminals, wearable devices, handles, electronic tags, controllers, wireless terminals in industrial control (Industrial Control), wireless terminals in self-driving (Self Driving), wireless terminals in remote medical care (Remote Medical), wireless terminals in smart grid (Smart Grid), wireless terminals in transportation safety (Transportation Safety), wireless terminals in smart cities (Smart
  • the network device 110 and the terminal device 120 communicate with each other via some air interface technology, such as a Uu interface.
  • Uplink communication refers to sending signals to the network device 110
  • downlink communication refers to sending signals to the terminal device 120.
  • the terminal device 120 and the terminal device 130 communicate with each other via some air interface technology, such as a PC5 interface.
  • Terminal device 120 and terminal device 130 are both within the network coverage and located in the same cell, or terminal device 120 and terminal device 130 are both within the network coverage but located in different cells, or terminal device 120 is within the network coverage but terminal device 130 is outside the network coverage.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • LTE-A Advanced Long Term Evolution
  • UMT Universal Mobile Telecommunication System
  • NR Worldwide Interoperability for Microwave Access (WiMAX) communication system
  • 5G mobile communication system New Radio (NR) system, NR system evolution system, LTE-based access to unlicensed spectrum (LTE-U) system, NR-based access to unlicensed spectrum (NR-U) system, terrestrial communication network (TN) system, non-terrestrial communication network (NTN) system, wireless local area network (WLAN), wireless fidelity (Wi-Fi), cellular Internet of Things system, cellular passive Internet of Things system, and may also be applicable to the subsequent evolution system of 5G NR system, and may also be applicable to B5G, 6G and subsequent evolution systems.
  • NR may also be referred to as 5G NR system or 5G system.
  • the 5G mobile communication system may include non-standalone (NSA) and/or standalone (SA).
  • the technical solution provided in the embodiments of the present application can also be applied to machine type communication (MTC), long term evolution technology for machine-to-machine communication (LTE-M), device to device (D2D) network, machine to machine (M2M) network, Internet of Things (IoT) network or other networks.
  • IoT network can include vehicle networking, for example.
  • vehicle to X, V2X, X can represent anything), for example, the V2X can include: vehicle to vehicle (V2V) communication, vehicle to infrastructure (V2I) communication, vehicle to pedestrian communication (V2P) or vehicle to network (V2N) communication, etc.
  • a physical downlink control channel consists of one or more control channel elements (CCE).
  • CCE control channel elements
  • the number of CCEs that make up the PDCCH is called the aggregation level.
  • the aggregation levels currently supported in related technologies are shown in Table 1.
  • a CCE consists of six resource element groups (REGs), where one REG is equal to the physical resources corresponding to one orthogonal frequency division multiplexing (OFDM) symbol in the time domain and one resource block (RB) in the frequency domain.
  • REGs resource element groups
  • OFDM orthogonal frequency division multiplexing
  • PDCCH is transmitted in the control resource set (CORESET).
  • CORESET consists of RBs and time domain
  • the REG in a CORESET starts from the first OFDM symbol of the CORESET.
  • the RBs with the lowest RB number are numbered in ascending order starting from 0 in a time domain priority manner.
  • a terminal device can be configured with multiple CORESETs, and each CORESET is associated with only one CCE-REG mapping mode.
  • the CCE-REG mapping within a CORESET can be interleaved mapping or non-interleaved mapping, and is described by REG bundles:
  • REG bundle i is defined as REGs ⁇ iL,iL+1,...,iL+L-1 ⁇ , where L is the size of the REG bundle, is the number of REGs in CORESET;
  • CCE j consists of REG bundles ⁇ f(6j/L),f(6j/L+1),...f(6j/L+6/L-1) ⁇ , where f( ⁇ ) is the interleaving function.
  • R is the number of rows of the rectangular interleaver and R ⁇ 2,3,6 ⁇ ;
  • C is an integer;
  • n shift is an offset parameter used to achieve randomization of inter-cell interference.
  • the terminal device determines the set of candidate PDCCHs to be monitored based on the PDCCH search space set configured by the high-level layer.
  • the search space set can be a common search space (CSS) set or a user-specific search space (USS) set.
  • the terminal device determines the candidate PDCCH
  • the corresponding CCE index is:
  • the maximum aggregation level of PDCCH is 16, and PDCCH repeated transmission is not supported.
  • the terminal device may not detect PDCCH at this time, affecting the data transmission process in the NTN system. Therefore, how to improve PDCCH coverage performance is an urgent problem to be solved.
  • the PDCCH corresponds to one candidate PDCCH in the candidate PDCCH set, or multiple candidate PDCCHs.
  • the network device sends a PDCCH to the terminal device, and the terminal device receives the PDCCH by monitoring the candidate PDCCH in the candidate PDCCH set.
  • the PDCCH received by the terminal device corresponds to one or more candidate PDCCHs in the candidate PDCCH set.
  • the terminal device may repeatedly transmit PDCCH or introduce a larger aggregation level.
  • the PDCCH received by the terminal device corresponds to multiple candidate PDCCHs in the candidate PDCCH set, then:
  • At least one candidate PDCCH is located in the CORESET, and the CCE index corresponding to the candidate PDCCH in the CORESET is determined according to the configuration information of the search space set;
  • One or more candidate PDCCHs may be located outside the CORESET, and the resource location of the candidate PDCCH outside the CORESET is determined based on the resource location of the candidate PDCCH in the CORESET;
  • the aggregation level of the candidate PDCCH is greater than 16.
  • the scheme shown in the embodiment of the present application sends and receives PDCCH based on a candidate PDCCH set.
  • the PDCCH received by the terminal device corresponds to one or more candidate PDCCHs in the candidate PDCCH set.
  • the terminal device can repeatedly transmit the PDCCH or introduce a larger aggregation level, thereby greatly improving the coverage performance of the PDCCH and improving the reliability of data transmission in the NTN system.
  • the multiple candidate PDCCHs are used for repeated transmission of the PDCCH.
  • the above multiple candidate PDCCHs can be used to repeatedly transmit the PDCCH, and the embodiment of the present application can improve the coverage performance of the PDCCH.
  • step 201 of FIG. 2 above may be implemented as follows:
  • the terminal device receives the PDCCH based on the candidate PDCCH repetition transmission set; the candidate PDCCH repetition transmission set consists of multiple candidate PDCCHs in the candidate PDCCH set.
  • the multiple candidate PDCCHs constitute a candidate PDCCH repetition transmission set
  • the candidate PDCCH repetition transmission set is used for the terminal device to receive the PDCCH.
  • the PDCCH received by the terminal device corresponds to multiple candidate PDCCHs in the candidate PDCCH set.
  • the terminal device can receive PDCCH repetition transmissions by monitoring the candidate PDCCH repetition transmission set in the candidate PDCCH set, thereby improving the reliability of data transmission.
  • FIG. 3 shows a schematic diagram of a candidate PDCCH repetition transmission set provided by an exemplary embodiment of the present application.
  • the candidate PDCCH set includes candidate PDCCHs ⁇ 0, 1, 2, 3 ⁇ .
  • the candidate PDCCH set further includes a candidate PDCCH repeated transmission set ⁇ 0, 1 ⁇ .
  • the candidate PDCCH repetition transmission set #0 includes candidate PDCCHs ⁇ 0, 1 ⁇
  • the candidate PDCCH repetition transmission set #1 includes candidate PDCCHs ⁇ 2, 3 ⁇ .
  • the terminal device receives PDCCH repetition transmission by monitoring candidate PDCCH repetition transmission sets #0 and #1.
  • At least one candidate PDCCH in the candidate PDCCH repetition transmission set is located in a first CORESET; the first CORESET is the CORESET where the PDCCH repetition transmission is located.
  • the embodiment of the present application makes the resource configuration of PDCCH repetition transmission more flexible, providing more space for further expansion in the future.
  • the CORESET itself may not have PDCCH repetition transmission information. For example, when the first CORESET is associated with the first search space set (SS set), PDCCH repetition transmission is performed; when the first CORESET is associated with the second SS set, PDCCH repetition transmission is not performed.
  • SS set first search space set
  • PDCCH repetition transmission is performed; when the first CORESET is associated with the second SS set, PDCCH repetition transmission is not performed.
  • the method shown in FIG2 further includes:
  • the terminal device determines the CCE index corresponding to the first candidate PDCCH; the first candidate PDCCH is one of the candidate PDCCHs located in the first CORESET in the candidate PDCCH repetition transmission set.
  • the CCE index corresponding to the first candidate PDCCH is determined by the configuration information of the search space set.
  • At least one candidate PDCCH in the candidate PDCCH repetition transmission set is located in the CORESET.
  • the terminal device can determine the CCE index corresponding to the candidate PDCCH in the candidate PDCCH repetition transmission set located in the CORESET based on the configuration information of the search space set, that is, determine the CCE index corresponding to the first candidate PDCCH.
  • FIG. 4 shows a schematic diagram of CCE indexes corresponding to candidate PDCCHs located in a CORESET in a candidate PDCCH repetition transmission set provided by an exemplary embodiment of the present application.
  • the terminal device first determines the candidate PDCCH in the search space set s.
  • the corresponding CCE index is:
  • the candidate PDCCH The corresponding CCE index is CCE#0-1.
  • the terminal device further determines that the CCE index corresponding to the candidate PDCCH #0 in the candidate PDCCH repetition transmission set #0 is CCE #0-1.
  • An embodiment of the present application provides a feasible solution for determining the CCE index corresponding to the first candidate PDCCH through the configuration information of the search space set, which can reduce the standardization complexity; the terminal device determines the CCE index corresponding to the candidate PDCCH located in the CORESET in the candidate PDCCH repetition transmission set based on the CCE index corresponding to the candidate PDCCH in the search space set, that is, determines the CCE index corresponding to the above-mentioned first candidate PDCCH, thereby determining the resource position corresponding to the first candidate PDCCH.
  • the determining of the CCE index corresponding to the first candidate PDCCH based on the configuration information of the search space set includes:
  • the terminal device determines the CCE index corresponding to the first candidate PDCCH
  • the second candidate PDCCH is a candidate PDCCH in the search space set that has a corresponding relationship with the first candidate PDCCH.
  • the CCE index corresponding to the first candidate PDCCH is determined by the CCE index corresponding to the second candidate PDCCH.
  • At least one candidate PDCCH in the candidate PDCCH repetition transmission set located in the CORESET has a corresponding relationship with the candidate PDCCH in the search space set.
  • the terminal device can determine the CCE index corresponding to the candidate PDCCH in the corresponding candidate PDCCH repetition transmission set according to the CCE index corresponding to the candidate PDCCH in the search space set.
  • An embodiment of the present application provides a feasible solution for determining the CCE index corresponding to the first candidate PDCCH based on a corresponding relationship, which can reduce the standardization complexity; the first candidate PDCCH and the second candidate PDCCH have a corresponding relationship, and the terminal device can determine the CCE index of the first candidate PDCCH according to the CCE index of the second candidate PDCCH, thereby determining the resource position corresponding to the first candidate PDCCH.
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set located in the CORESET may correspond to discontinuous candidate PDCCHs in the search space set; or, may correspond to continuous candidate PDCCHs in the search space set.
  • the candidate PDCCH in the candidate PDCCH repetition transmission set located in the CORESET corresponds to a discontinuous candidate PDCCH in the search space set.
  • Figure 5 shows a schematic diagram of the candidate PDCCH in the candidate PDCCH repetition transmission set corresponding to a discontinuous candidate PDCCH in the search space set provided by an exemplary embodiment of the present application.
  • the candidate PDCCH ⁇ 0,1 ⁇ in the candidate PDCCH repetition transmission set #0 corresponds to the candidate PDCCH in the search space set s.
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set and the candidate PDCCHs in the search space set have a more flexible corresponding relationship, so that the resource configuration of the PDCCH repetition transmission is more flexible.
  • the terminal device can search for candidate PDCCHs in the search space set s.
  • the corresponding CCE index determines the CCE index corresponding to the candidate PDCCH #0 in the candidate PDCCH repetition transmission set #0, that is, CCE #0-1;
  • the terminal device can search for candidate PDCCHs in the search space set s.
  • the corresponding CCE index determines the CCE index corresponding to the candidate PDCCH #1 in the candidate PDCCH repetition transmission set #0, that is, CCE #4-5.
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set that are located in the CORESET correspond to consecutive candidate PDCCHs in the search space set.
  • FIG. 6 shows a schematic diagram of candidate PDCCHs in a candidate PDCCH repetition transmission set corresponding to consecutive candidate PDCCHs in a search space set provided by an exemplary embodiment of the present application.
  • the search space set configuration is the same as that of FIG. 4 .
  • the terminal device first determines the candidate PDCCH in the search space set.
  • the corresponding CCE indexes are CCE#0-1 and CCE#2-3 respectively. If the candidate PDCCH ⁇ 0,1 ⁇ in the candidate PDCCH repetition transmission set #0 is the same as the candidate PDCCH in the search space set s In one-to-one correspondence, the terminal device further determines that the CCE indexes corresponding to the candidate PDCCH ⁇ 0,1 ⁇ in the candidate PDCCH repetition transmission set #0 are CCE#0-1 and CCE#2-3 respectively.
  • a candidate PDCCH ⁇ 0,1 ⁇ located in the CORESET in the candidate PDCCH repetition transmission set is the first candidate PDCCH;
  • the method shown in FIG2 further includes:
  • the terminal device determines the resource position of the third candidate PDCCH; the third candidate PDCCH is any one of the candidate PDCCHs in the candidate PDCCH repetition transmission set located in the first CORESET except the first candidate PDCCH.
  • the resource position of the third candidate PDCCH is determined by the resource position of the first candidate PDCCH.
  • the first candidate PDCCH located in the CORESET in the candidate PDCCH repetition transmission set corresponds to the candidate PDCCH in the search space set, and the resource positions corresponding to other candidate PDCCHs (i.e., the third candidate PDCCH) located in the CORESET in the candidate PDCCH repetition transmission set are determined based on the resource positions corresponding to the first candidate PDCCH.
  • FIG. 7 shows a schematic diagram of a candidate PDCCH in a search space set corresponding to a first candidate PDCCH in a candidate PDCCH repetition transmission set provided by an exemplary embodiment of the present application.
  • the first candidate PDCCH in the candidate PDCCH repetition transmission set #0 corresponds to the candidate PDCCH in the search space set s.
  • the corresponding frequency domain resources are determined according to the first candidate PDCCH, such as candidate PDCCH #1 and candidate PDCCH #0 occupy adjacent CCE indexes or adjacent frequency domain resources.
  • the CCE index or frequency domain resources of other candidate PDCCHs can be determined based on the CCE index or frequency domain resources of a candidate PDCCH located in the CORESET in the candidate PDCCH repetition transmission set; the embodiment of the present application can improve the feasibility of PDCCH repetition transmission.
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set have at least one of the following corresponding relationships:
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set correspond to consecutive candidate PDCCHs in the search space set;
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set correspond to consecutive CCE indexes
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set correspond to consecutive resource positions.
  • the above correspondence can be any of the following three types: the candidate PDCCH in the candidate PDCCH repetition transmission set corresponds to the consecutive candidate PDCCH in the search space set; or, corresponds to consecutive CCE indexes; or, corresponds to consecutive resource locations; it can also be any combination of the three correspondences; the embodiment of the present application can simplify the process of the terminal device receiving PDCCH, thereby reducing the workload.
  • the candidate PDCCHs in the candidate PDCCH retransmission set located in the CORESET correspond to the consecutive candidate PDCCHs in the search space set.
  • the candidate PDCCHs ⁇ 0,1 ⁇ in the candidate PDCCH retransmission set #0 correspond to the candidate PDCCHs in the search space set s.
  • the terminal device can determine the CCE indexes corresponding to other candidate PDCCHs located in CORESET in the candidate PDCCH repetition transmission set based on the CCE index corresponding to a candidate PDCCH located in CORESET in the candidate PDCCH repetition transmission set, thereby reducing the complexity of the terminal device detecting PDCCH repetition transmission.
  • the terminal device searches for a candidate PDCCH in the search space set s (i.e., the second candidate PDCCH) corresponds to the CCE index corresponding to the candidate PDCCH #0 in the candidate PDCCH repetition transmission set #0 (i.e., the first candidate PDCCH), that is, CCE #0-1; then, based on the continuous correspondence, the CCE index corresponding to the candidate PDCCH #0 (i.e., the first candidate PDCCH) in the candidate PDCCH repetition transmission set #0 can also be used to determine the CCE index corresponding to the candidate PDCCH #1 in the candidate PDCCH repetition transmission set #0, that is, CCE #2-3.
  • the candidate PDCCH in the search space set s and the candidate PDCCH in the search space set s i.e., the second candidate PDCCH
  • the candidate PDCCH #1 in the candidate PDCCH repetition transmission set #0 is adjacent to the candidate PDCCH #0 (i.e., the first candidate PDCCH) in the candidate PDCCH repetition transmission set #0;
  • Candidate PDCCHs in the search space set s The candidate PDCCH #1 in the candidate PDCCH repetition transmission set #0 has a corresponding relationship with the candidate PDCCH #1 in the search space set s. (ie, the second candidate PDCCH) has a corresponding relationship with candidate PDCCH #0 (ie, the first candidate PDCCH) in candidate PDCCH repetition transmission set #0.
  • At least one candidate PDCCH in the candidate PDCCH repetition transmission set is located outside the first CORESET.
  • the embodiment of the present application makes the resource configuration of PDCCH repetition transmission more flexible, providing more space for further expansion in the future.
  • FIG. 8 shows a schematic diagram showing that some candidate PDCCHs in a candidate PDCCH repetition transmission set are located outside the CORESET according to an exemplary embodiment of the present application.
  • the terminal device determines that candidate PDCCH#0 in the candidate PDCCH repetition transmission set is located in the CORESET, and candidate PDCCH#1 is located outside the CORESET.
  • the method shown in FIG2 further includes:
  • the terminal device determines the resource position of the fourth candidate PDCCH; the fourth candidate PDCCH is any one of the candidate PDCCHs in the candidate PDCCH repetition transmission set that is located outside the first CORESET.
  • the resource position of the fourth candidate PDCCH is determined by the resource position of the first candidate PDCCH.
  • the terminal device first determines that the CCE index corresponding to the candidate PDCCH#0 in the candidate PDCCH repetition transmission set located in the CORESET is CCE#0-3, that is, the resource position of the first candidate PDCCH is first determined. Subsequently, one or more resource regions are determined outside the CORESET, for example, the resource region has the same size as the CORESET, and the resource position corresponding to the candidate PDCCH#1 is determined in the resource region, that is, the resource position of the fourth candidate PDCCH is determined.
  • the number of resource regions outside the CORESET depends on the number of candidate PDCCHs outside the CORESET.
  • a resource determination scheme for a candidate PDCCH located outside a first CORESET in a candidate PDCCH repetition transmission set is provided, and a terminal device determines the resource position of a candidate PDCCH located outside a CORESET in a candidate PDCCH repetition transmission set based on the resource position of a candidate PDCCH located within a CORESET in the candidate PDCCH repetition transmission set; thereby reducing the workload of resource determination.
  • the first candidate PDCCH and the fourth candidate PDCCH adopt interleaved mapping; or,
  • the first candidate PDCCH adopts interleaved mapping
  • the fourth candidate PDCCH adopts non-interleaved mapping
  • the candidate PDCCH located in the CORESET in the PDCCH repetition transmission set (ie, the first candidate PDCCH) adopts non-interleaved mapping
  • the candidate PDCCH located outside the CORESET in the PDCCH repetition transmission set (ie, the fourth candidate PDCCH) also adopts non-interleaved mapping.
  • the candidate PDCCH#0 located in the CORESET in the candidate PDCCH repetition transmission set adopts non-interleaved mapping and corresponds to CCE#0-3; the candidate PDCCH#1 located outside the CORESET also adopts non-interleaved mapping in the resource area outside the CORESET and corresponds to CCE#0-3.
  • FIG. 9 shows a schematic diagram of adopting interleaved mapping for candidate PDCCHs outside CORESET in a candidate PDCCH repetition transmission set provided by an exemplary embodiment of the present application.
  • the candidate PDCCH located in the CORESET in the PDCCH repetition transmission set (ie, the first candidate PDCCH) adopts interleaved mapping
  • the candidate PDCCH located outside the CORESET in the PDCCH repetition transmission set (ie, the fourth candidate PDCCH) adopts non-interleaved mapping.
  • FIG. 10 shows a schematic diagram of adopting non-interleaved mapping for candidate PDCCHs outside CORESET in a candidate PDCCH repetition transmission set provided by an exemplary embodiment of the present application.
  • the candidate PDCCH outside the CORESET can occupy continuous frequency domain resources.
  • the method shown in FIG2 further includes:
  • the terminal device determines the number of PDCCH repetition transmissions. Resource range.
  • the resource interval used for PDCCH repetition transmission is determined by the configuration information of the first CORESET and/or the number of PDCCH repetition transmissions.
  • an embodiment of the present application provides a feasible solution for determining the resource interval used for PDCCH repetition transmission, so as to better meet the needs of PDCCH repetition transmission.
  • the terminal device determines the resource region used for repeated transmission of the PDCCH according to the CORESET configuration and/or the number of repeated transmissions of the PDCCH.
  • determining a resource interval for repeated PDCCH transmission based on CORESET configuration and/or the number of repeated PDCCH transmissions includes:
  • the terminal device determines the first CORESET
  • the first CORESET candidate value set is a CORESET candidate value set where PDCCH is repeatedly transmitted.
  • the first CORESET is determined by the first CORESET candidate value set and the indication information of the MIB.
  • a CORESET candidate value set for repeated PDCCH transmission is introduced, and the terminal device determines the applied CORESET from the CORESET candidate value set according to the indication information configured by CORESET0 in the MIB.
  • a set of CORESET candidate values for repeated PDCCH transmission is introduced, such as The network device instructs the terminal device to use the instruction information configured in CORESET0 in MIB The terminal device determines that the CORESET used for repeated PDCCH transmission has RBs and symbol.
  • An embodiment of the present application provides a scheme for determining the CORESET where PDCCH repeated transmission is located.
  • the terminal device can determine the CORESET where PDCCH repeated transmission is located based on the CORESET candidate value set where PDCCH repeated transmission is located and the indication information of MIB; the embodiment of the present application introduces a CORESET candidate value set for PDCCH repeated transmission, and uses the existing MIB indication information to simplify the acquisition process of the first CORESET and reduce the standardization complexity.
  • the number of PDCCH repetition transmissions is equal to the number of candidate PDCCHs in the candidate PDCCH repetition transmission set.
  • the number of PDCCH repetition transmissions of a candidate PDCCH repetition transmission set is equal to the number of candidate PDCCHs in the candidate PDCCH repetition transmission set.
  • FIG. 11 shows a schematic diagram of determining a PDCCH repetition transmission area according to a CORESET configuration and a number of PDCCH repetition transmissions provided by an exemplary embodiment of the present application.
  • One candidate PDCCH is located in the CORESET, and the other three candidate PDCCHs are located outside the CORESET.
  • a scheme for obtaining the number of PDCCH repetition transmissions is provided.
  • the terminal device can regard the number of candidate PDCCHs in the candidate PDCCH repetition transmission set as the corresponding number of PDCCH repetition transmissions to improve the PDCCH coverage performance.
  • the number of PDCCH repetition transmissions is determined by the CORESET configuration information or the search space set configuration information.
  • a scheme for obtaining the number of PDCCH repetition transmissions is provided, and a terminal device can determine the required number of PDCCH repetition transmissions based on a candidate PDCCH index, or a starting CCE index corresponding to the candidate PDCCH; this can reduce the workload of obtaining the number of PDCCH repetition transmissions, and at the same time provide more space for further expansion in the future.
  • the method shown in FIG2 further includes:
  • whether to apply the first CORESET candidate value set and/or the number of PDCCH repetition transmissions is determined by the indication information in the PBCH.
  • the terminal device determines whether to apply the PDCCH repeated transmission process according to the indication information in the PBCH, and the PDCCH repeated transmission process includes at least one of the following: a first CORESET candidate value set and a number of PDCCH repeated transmission times.
  • the current PBCH information bit It is a reserved bit and can be used to indicate whether to apply the PDCCH repeated transmission process, such as When the PDCCH retransmission process is not applied, Indicates the application of PDCCH repeated transmission process.
  • the PDCCH repetition transmission process includes a CORESET candidate value set and/or a PDCCH repetition transmission number introduced for PDCCH repetition transmission.
  • a scheme for determining whether to apply the first CORESET candidate value set and the number of PDCCH repeated transmissions, so as to further optimize the PDCCH repeated transmission process and make the scheme more flexible.
  • an aggregation level of the candidate PDCCH is greater than 16.
  • the aggregation level of the candidate PDCCH is greater than 16, and the embodiment of the present application can improve the coverage performance of the PDCCH.
  • the terminal device determines the candidate PDCCH
  • the corresponding CCE index is:
  • the formula for determining the CCE index corresponding to the candidate PDCCH is the same.
  • the method shown in FIG2 further includes:
  • the terminal device determines the second CORESET
  • the second CORESET candidate value set is a CORESET candidate value set in which the number of CCEs is greater than 16, and the second CORESET is a CORESET in which the number of CCEs is greater than 16.
  • the second CORESET is determined by the second CORESET candidate value set and the indication information of the MIB.
  • a CORESET candidate value set with a CCE number > 16 is introduced, and the terminal device determines the applied CORESET from the CORESET candidate value set according to the indication information configured by CORESET0 in the MIB.
  • a set of CORESET candidate values with CCE number > 16 is introduced, such as The network device instructs the terminal device to use the instruction information configured in CORESET0 in MIB
  • a scheme for determining a CORESET with a CCE number greater than 16 is provided to support candidate PDCCHs with an aggregation level greater than 16, thereby improving the coverage performance of the PDCCH.
  • the method shown in FIG2 further includes:
  • the terminal device determines whether to apply the second CORESET candidate value set and/or a PDCCH with an aggregation level greater than 16.
  • whether to apply the second CORESET candidate value set and/or a PDCCH with an aggregation level greater than 16 is determined by the indication information in the PBCH.
  • the embodiment of the present application provides a solution for determining whether to apply the second CORESET candidate value set and the PDCCH with an aggregation level greater than 16, further optimizing the PDCCH transmission process, thereby reducing the workload of the present solution.
  • the method shown in FIG2 further includes:
  • the terminal device determines the number of fifth candidate PDCCHs in the candidate PDCCH set; the fifth candidate PDCCH is a candidate PDCCH with an aggregation level greater than 16.
  • the number of candidate PDCCHs with aggregation level L>16 is provided in the search space set configuration information.
  • the present application repeats the transmission of PDCCH or introduces a larger aggregation level.
  • the terminal device receives PDCCH by monitoring the candidate PDCCH in the candidate PDCCH set, wherein the received PDCCH corresponds to one or more candidate PDCCHs in the candidate PDCCH set.
  • the terminal device can determine the resource region used for PDCCH repetition transmission and the number of PDCCH repetition transmissions.
  • FIG. 12 shows a block diagram of a PDCCH receiving device provided by an embodiment of the present application.
  • the PDCCH receiving device has the function of implementing the method shown in FIG. 2 above, which is performed by the terminal device.
  • the device may include:
  • the receiving module 1201 is configured to receive a PDCCH based on a candidate PDCCH set
  • the PDCCH corresponds to one candidate PDCCH in the candidate PDCCH set, or multiple candidate PDCCHs.
  • the multiple candidate PDCCHs are used for repeated transmission of the PDCCH.
  • the receiving module 1201 is used to:
  • the candidate PDCCH repetition transmission set consists of multiple candidate PDCCHs in the candidate PDCCH set.
  • At least one candidate PDCCH in the candidate PDCCH repetition transmission set is located in a first CORESET; the first CORESET is the CORESET where the PDCCH repetition transmission is located.
  • the apparatus further includes a first determining module, configured to:
  • the first candidate PDCCH is one of the candidate PDCCHs in the candidate PDCCH repetition transmission set and located in the first CORESET.
  • the first determining module is used to:
  • the second candidate PDCCH is a candidate PDCCH in the search space set that has a corresponding relationship with the first candidate PDCCH.
  • the apparatus further includes a second determining module, configured to:
  • the third candidate PDCCH is any one of the candidate PDCCHs in the candidate PDCCH repetition transmission set that is located in the first CORESET except the first candidate PDCCH.
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set have at least one of the following corresponding relationships:
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set correspond to consecutive candidate PDCCHs in the search space set;
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set correspond to consecutive CCE indexes
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set correspond to consecutive resource positions.
  • At least one candidate PDCCH in the candidate PDCCH repetition transmission set is located outside the first CORESET.
  • the apparatus further includes a third determining module, configured to:
  • the fourth candidate PDCCH is any one of the candidate PDCCHs in the candidate PDCCH repetition transmission set that is outside the first CORESET.
  • the first candidate PDCCH and the fourth candidate PDCCH adopt non-interleaved mapping; or,
  • the first candidate PDCCH and the fourth candidate PDCCH adopt interleaved mapping; or,
  • the first candidate PDCCH adopts interleaved mapping
  • the fourth candidate PDCCH adopts non-interleaved mapping
  • the apparatus further includes a fourth determining module, configured to:
  • the fourth determining module is used to:
  • the first CORESET candidate value set is a candidate value set of the CORESET where the PDCCH is repeatedly transmitted.
  • the number of PDCCH repetition transmissions is equal to the number of candidate PDCCHs in the candidate PDCCH repetition transmission set.
  • the device further includes a first acquisition module, configured to:
  • the number of PDCCH repetition transmissions is obtained.
  • the device further includes a second acquisition module, configured to:
  • the number of PDCCH repetition transmissions is obtained based on the candidate PDCCH index or the starting CCE index corresponding to the candidate PDCCH.
  • the apparatus further includes a fifth determining module, configured to:
  • the apparatus further includes a sixth determining module, configured to:
  • the fifth candidate PDCCH is a candidate PDCCH with an aggregation level greater than 16.
  • the multiple candidate PDCCHs are used for repeated transmission of the PDCCH.
  • the multiple candidate PDCCHs constitute a candidate PDCCH repetition transmission set.
  • At least one candidate PDCCH in the candidate PDCCH repetition transmission set is located within the first CORESET;
  • the second candidate PDCCH is a candidate PDCCH in the search space set that has a corresponding relationship with the first candidate PDCCH.
  • the resource position of the third candidate PDCCH is determined by the resource position of the first candidate PDCCH
  • the candidate PDCCHs in the candidate PDCCH repetition transmission set correspond to consecutive resource positions.
  • the first candidate PDCCH adopts interleaved mapping
  • the fourth candidate PDCCH adopts non-interleaved mapping
  • the first CORESET is determined by a first CORESET candidate value set and indication information of the MIB;
  • the number of PDCCH repetition transmissions is equal to the number of candidate PDCCHs in the candidate PDCCH repetition transmission set.
  • the number of PDCCH repetition transmissions is determined by CORESET configuration information or search space set configuration information.
  • an aggregation level of the candidate PDCCH is greater than 16.
  • the second CORESET is determined by a second CORESET candidate value set and indication information of the MIB;
  • the second CORESET candidate value set is a CORESET candidate value set in which the number of CCEs is greater than 16, and the second CORESET is a CORESET in which the number of CCEs is greater than 16.
  • whether to apply the second CORESET candidate value set and/or a PDCCH with an aggregation level greater than 16 is determined by indication information in the PBCH.
  • the fifth candidate PDCCH is a candidate PDCCH with an aggregation level greater than 16.
  • the device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example to implement its functions.
  • the above-mentioned functions can be assigned to different functional modules according to actual needs, that is, the content structure of the device can be divided into different functional modules to complete all or part of the functions described above.
  • FIG14 shows a schematic diagram of the structure of a communication device 1400 provided in one embodiment of the present application.
  • the communication device 1400 may include: a processor 1401 , a receiver 1402 , a transmitter 1403 , a memory 1404 and a bus 1405 .
  • the processor 1401 includes one or more processing cores.
  • the processor 1401 executes various functional applications and information processing by running software programs and modules.
  • the receiver 1402 and the transmitter 1403 may be implemented as a communication component, which may be a communication chip.
  • the communication chip may also be called a transceiver.
  • the memory 1404 is connected to the processor 1401 via a bus 1405.
  • the memory 1404 may be used to store computer programs.
  • the processor 1401 is used to execute the computer program to implement each step in the above method embodiment.
  • memory 1404 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, and volatile or non-volatile storage devices include but are not limited to: magnetic disks or optical disks, electrically erasable programmable read-only memory, erasable programmable read-only memory, static access memory, read-only memory, magnetic memory, flash memory, and programmable read-only memory.
  • the transmitter 1403 and the processor 1401 execute a computer program so that the communication device implements the various steps performed by the network device in the method shown in Figure 2.
  • the above-mentioned transmitter 1403 can correspondingly implement the method and steps implemented by the sending module 1301 in Figure 13
  • the receiver 1402 can correspondingly implement the method and steps implemented by the receiving module in Figure 13.
  • An embodiment of the present application also provides a computer-readable storage medium, in which a computer program is stored.
  • the computer program is loaded and executed by a processor to implement all or part of the steps performed by a terminal device or a network device in the method shown in FIG. 2 above.
  • the present application also provides a computer program product, the computer program product or computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium.
  • the processor of the communication device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the communication device executes all or part of the steps executed by the terminal device or the network device in the method shown in FIG. 2 above.
  • the present application also provides a computer program, which is executed by a processor of a communication device to implement all or part of the steps executed by a terminal device or a network device in the method shown in FIG. 2 above.
  • Computer-readable media include computer storage media and communication media, wherein the communication media include any media that facilitates the transmission of a computer program from one place to another.
  • the storage medium can be any available medium that a general or special-purpose computer can access.

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Abstract

一种PDCCH的接收方法、发送方法、设备及存储介质,属于移动通信技术领域。该方法由终端设备执行,包括:基于候选PDCCH集合,接收PDCCH;该PDCCH对应候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。该方案可以提升PDCCH的覆盖性能,提高数据传输的可靠性。

Description

PDCCH的接收方法、发送方法、设备及存储介质 技术领域
本申请涉及移动通信技术领域,特别涉及一种PDCCH的接收方法、发送方法、设备及存储介质。
背景技术
随着移动通信技术的不断发展,终端设备可以通过监听候选PDCCH集合中的候选PDCCH进行PDCCH接收。
在相关技术中,NTN系统中的卫星发送功率有限造成下行覆盖性能受限,导致终端设备可能检测不到PDCCH,影响数据传输过程。
发明内容
本申请实施例提供了一种PDCCH的接收方法、发送方法、设备及存储介质。所述技术方案如下:
一方面,本申请实施例提供了一种PDCCH的接收方法,所述方法由终端设备执行,所述方法还包括:
基于候选PDCCH集合,接收PDCCH;
所述PDCCH对应所述候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
一方面,本申请实施例提供了一种PDCCH的发送方法,所述方法由网络设备执行,所述方法还包括:
基于候选PDCCH集合,向终端设备发送PDCCH;所述PDCCH对应所述候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
另一方面,本申请实施例提供了一种PDCCH的接收装置,所述装置包括:
接收模块,用于基于候选PDCCH集合,接收PDCCH;
所述PDCCH对应所述候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
另一方面,本申请实施例提供了一种PDCCH的发送装置,所述装置包括:
发送模块,用于基于候选PDCCH集合,向终端设备发送PDCCH;所述PDCCH对应所述候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
另一方面,本申请实施例提供了一种终端设备,所述终端设备包括处理器、存储器和收发器;
所述存储器中存储有计算机程序,所述处理器执行所述计算机程序,以使得所述终端设备实现上述PDCCH的接收方法或发送方法。
另一方面,本申请实施例提供了一种网络设备,所述网络设备包括处理器、存储器和收发器;
所述存储器中存储有计算机程序,所述处理器执行所述计算机程序,以使得所述网络设备实现上述PDCCH的接收方法或发送方法。
又一方面,本申请实施例还提供了一种计算机可读存储介质,所述存储介质中存储有计算机程序,所述计算机程序由处理器加载并执行以实现上述PDCCH的接收方法或发送方法。
又一方面,本申请还提供了一种芯片,所述芯片用于在通信设备中运行,以使得所述通信设备执行上述PDCCH的接收方法或发送方法。
又一方面,本申请提供了一种计算机程序产品,该计算机程序产品包括计算机指令,该计算机指令存储在计算机可读存储介质中。通信设备的处理器从计算机可读存储介质读取该计算机指令,处理器执行该计算机指令,使得该通信设备执行上述PDCCH的接收方法或发送方法。
又一方面,本申请提供了一种计算机程序,该计算机程序由通信设备的处理器执行,以实现上述PDCCH的接收方法或发送方法。
本申请实施例提供了一种PDCCH的接收方案和发送方案,基于候选PDCCH集合进行PDCCH的发送和接收,终端设备接收的PDCCH对应候选PDCCH集合中的一个或多个候选PDCCH,终端设备可以对PDCCH进行重复传输或引入更大的聚合等级,极大程度上提升PDCCH的覆盖性能,提高NTN系统中数据传输的可靠性。
附图说明
为了更清楚地说明本申请实施例中的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本申请的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是本申请一个实施例提供的通信系统的架构示意图;
图2是本申请一个实施例提供的PDCCH的接收方法、发送方法的流程图;
图3是本申请一个示例性实施例提供的候选PDCCH重复传输集合的示意图;
图4是本申请一个示例性实施例提供的候选PDCCH重复传输集合中位于CORESET内的候选PDCCH对应的CCE索引的示意图;
图5是本申请一个示例性实施例提供的候选PDCCH重复传输集合中的候选PDCCH对应搜索空间集合中不连续的候选PDCCH的示意图;
图6是本申请一个示例性实施例提供的候选PDCCH重复传输集合中的候选PDCCH对应搜索空间集合中连续的候选PDCCH的示意图;
图7是本申请一个示例性实施例提供的候选PDCCH重复传输集合中第一候选PDCCH对应搜索空间集合中的候选PDCCH的示意图;
图8是本申请一个示例性实施例提供的候选PDCCH重复传输集合中的部分候选PDCCH位于CORESET外的示意图;
图9是本申请一个示例性实施例提供的候选PDCCH重复传输集合中CORESET外的候选PDCCH采用交织映射的示意图;
图10是本申请一个示例性实施例提供的候选PDCCH重复传输集合中CORESET外的候选PDCCH采用非交织映射的示意图;
图11是本申请一个示例性实施例提供的根据CORESET配置和PDCCH重复传输次数确定PDCCH重复传输区域的示意图;
图12是本申请一个实施例提供的PDCCH的接收装置的框图;
图13是本申请一个实施例提供的PDCCH的发送装置的框图;
图14是本申请一个实施例提供的通信设备的结构示意图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚,下面结合附图对本申请实施方式作进一步地详细描述。
本申请实施例描述的网络架构以及业务场景是为了更加清楚地说明本申请实施例的技术方案,并不构成对本申请实施例提供的技术方案的限定,本领域普通技术人员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。
图1示出了本申请示例性实施例涉及的通信系统的示意图。该通信系统包括网络设备110与终端设备120,和/或终端设备120与终端设备130,本申请对此不作限定。
本申请中的网络设备110提供无线通信功能,该网络设备110包括但不限于:演进型节点B(Evolved Node B,eNB)、无线网络控制器(Radio Network Controller,RNC)、节点B(Node B,NB)、基站控制器(Base Station Controller,BSC)、基站收发台(Base Transceiver Station,BTS)、家庭基站(例如,Home Evolved Node B,或Home Node B,HNB)、基带单元(Baseband Unit,BBU)、无线保真(Wireless Fidelity,Wi-Fi)系统中的接入点(Access Point,AP)、无线中继节点、无线回传节点、传输点(Transmission Point,TP)或者发送接收点(Transmission and Reception Point,TRP)等,还可以为第五代(5th Generation,5G)移动通信系统中的下一代节点B(Next Generation Node B,gNB)或传输点(TRP或TP),或者,为5G系统中的基站的一个或一组(包括多个天线面板)天线面板,或者,还可以为构成gNB或传输点的网络节点,如基带单元(BBU)或分布式单元(Distributed Unit,DU)等,或者超5代移动通信系统(Beyond Fifth Generation,B5G)、第六代(6th Generation,6G)移动通信系统中的基站等,或者核心网(Core Network,CN)、前传(Fronthaul)、回传(Backhaul)、无线接入网(Radio Access Network,RAN)、网络切片等,或者终端设备的服务小区、主小区(Primary Cell,PCell)、主辅小区(Primary Secondary Cell,PSCell)、特殊小区(Special Cell,SpCell)、辅小区(Secondary Cell,SCell)、邻小区等。
本申请中的终端设备120和/或终端设备130,或称用户设备(User Equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理、用户装置。该终端包括但不限于:手持设备、可穿戴设备、车载设备和物联网设备等,例如:手机、平板电脑、电子书阅读器、膝上便携计算机、台式计算机、电视机、游戏机、移动互联网设备(Mobile Internet Device,MID)、增强现实(Augmented Reality,AR)终端、虚拟现实(Virtual Reality,VR)终端和混合现实(Mixed Reality,MR)终端、可穿戴设备、手柄、电子标签、控制器、工业控制(Industrial Control)中的无线终端、自动驾驶(Self Driving)中的无线终端、远程医疗(Remote Medical)中的无线终端、智能电网(Smart Grid)中的无线终端、运输安全(Transportation Safety)中的无线终端、智慧城市(Smart City)中的无线终端、智慧家庭(Smart Home)中的无线终端、远程手术(Remote Medical Surgery)中的无线终 端、蜂窝电话、无绳电话、会话启动协议(Session Initiation Protocol,SIP)电话、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)、电视机顶盒(Set Top Box,STB)、用户驻地设备(Customer Premise Equipment,CPE)等。
网络设备110与终端设备120之间通过某种空口技术互相通信,例如Uu接口。
示例性的,网络设备110与终端设备120之间存在两种通信场景:上行通信场景与下行通信场景。其中,上行通信是指向网络设备110发送信号;下行通信是指向终端设备120发送信号。
终端设备120与终端设备130之间通过某种空口技术互相通信,例如PC5接口。
在一些实施例中,终端设备120与终端设备130之间存在两种通信场景:第一侧行通信场景与第二侧行通信场景。第一侧行通信是指向终端设备130发送信号;第二侧行通信是指向终端设备120发送信号。
终端设备120与终端设备130均在网络覆盖范围内且位于相同的小区,或者终端设备120与终端设备130均在网络覆盖范围内但位于不同的小区,或者终端设备120在网络覆盖范围内但终端设备130在网络覆盖范围外。
本申请中实施例提供的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)系统、先进的长期演进(Advanced Long Term Evolution,LTE-A)系统、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统、5G移动通信系统、新空口(New Radio,NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum,LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum,NR-U)系统、地面通信网络(Terrestrial Networks,TN)系统、非地面通信网络(Non-Terrestrial Networks,NTN)系统、无线局域网(Wireless Local Area Networks,WLAN)、无线保真(Wireless Fidelity,Wi-Fi)、蜂窝物联网系统、蜂窝无源物联网系统,也可以适用于5G NR系统后续的演进系统,还可以适用于B5G、6G以及后续的演进系统。本申请的一些实施例中,“NR”也可以称为5G NR系统或者5G系统。其中,5G移动通信系统可以包括非独立组网(Non-Standalone,NSA)和/或独立组网(Standalone,SA)。
本申请中实施例提供的技术方案还可以应用于机器类通信(Machine Type Communication,MTC)、机器间通信长期演进技术(Long Term Evolution-Machine,LTE-M)、设备到设备(Device to Device,D2D)网络、机器到机器(Machine to Machine,M2M)网络、物联网(Internet of Things,IoT)网络或者其他网络。其中,IoT网络例如可以包括车联网。其中,车联网系统中的通信方式统称为车到其他设备(Vehicle to X,V2X,X可以代表任何事物),例如,该V2X可以包括:车辆到车辆(Vehicle to Vehicle,V2V)通信、车辆与基础设施(Vehicle to Infrastructure,V2I)通信、车辆与行人之间的通信(Vehicle to Pedestrian,V2P)或车辆与网络(Vehicle to Network,V2N)通信等。
在介绍本申请技术方案之前,先对本申请涉及的一些背景技术知识进行介绍说明。以下相关技术作为可选方案与本申请实施例的技术方案可以进行任意结合,其均属于本申请实施例的保护范围。本申请实施例包括以下内容中的至少部分内容:
1)NR系统PDCCH结构设计
1个物理下行控制信道(Physical Downlink Control Channel,PDCCH)由1个或多个控制信道单元(Control Channel Element,CCE)组成,构成PDCCH的CCE的数量称为聚合等级,目前相关技术中支持的聚合等级如表1所示。1个CCE由6个资源单元组(Resource Element Group,REG)组成,其中1个REG等于时域1个正交频分多址复用(Orthogonal Frequency Division Multiplexing,OFDM)符号和频域1个资源块(Resource Block,RB)对应的物理资源。
表1
PDCCH在控制资源集合(Control-Resource Set,CORESET)内进行传输,1个CORESET由频域个RBs和时域个符号组成。1个CORESET内的REG从CORESET的第1个OFDM符 号和最低RB开始以时域优先的方式从0开始升序编号。
终端设备可以被配置多个CORESET,每一个CORESET仅关联一种CCE-REG映射方式。CORESET内CCE-REG映射可以为交织映射或非交织映射,并通过REG bundle进行描述:
REG bundle i定义为REGs{iL,iL+1,…,iL+L-1},其中,L为REG bundle的大小,为CORESET内REG数量;
CCE j由REG bundles{f(6j/L),f(6j/L+1),…f(6j/L+6/L-1)}组成,其中,f(·)为交织函数。
对于非交织CCE-REG映射,L=6和f(x)=x。
对于交织CCE-REG映射,时L∈{2,6};时,
交织映射采用矩形交织器,且交织函数定义为:
其中,x=cR+r,r=0,1,…,R-1,c=0,1,…,C-1;R为矩形交织器的行数且R∈{2,3,6};且C为整数;nshift为偏移参数,用于实现小区间干扰随机化。
2)NR系统PDCCH监听流程
终端设备根据高层配置的PDCCH搜索空间集合确定要监听的候选PDCCH集合,该搜索空间集合可以为公共搜索空间(Common Search Space,CSS)集合或用户专用搜索空间(UE-specific Search Space,USS)集合。
具体的,对于CORESET p关联的搜索空间集合s,在时隙聚合等级为L时,终端设备确定候选PDCCH对应CCE索引为:
其中:
对于CSS,对于USS,Yp,-1=nRNTI≠0,D=65537,对于p mod 3=0,Ap=39827,对于p mod 3=1,Ap=39829,对于p mod 3=2,Ap=39839;
i=0,…,L-1;
NCCE,p为CORESET p内CCE数量,编号从0到NCCE,p-1;
如果配置了跨载波指示,则nCI为载波指示域的值,以保证调度不同载波的候选PDCCH尽可能占用不重叠的CCE;否则,包括CSS,nCI=0;
其中为高层为终端设备配置的,在服务小区nCI的搜索空间集合s中,聚合等级为L时监听的候选PDCCH数;
对于CSS,对于USS,为搜索空间集合s中聚合等级为L时,所有配置的nCI值中的最大值。
相关技术中PDCCH最大聚合等级为16,且不支持PDCCH重复传输。考虑到NTN系统中卫星发送功率有限导致下行覆盖性能受限,此时终端设备可能检测不到PDCCH,影响NTN系统中数据传输过程。因此,如何提升PDCCH覆盖性能是一个亟需解决的问题。
请参考图2,其示出了本申请一个实施例提供的PDCCH的接收方法、发送方法的流程图,该方法可以由终端设备和网络设备交互执行,其中,上述该终端设备可以是图1所示的网络架构中的终端设备120或终端设备130,上述该网络设备可以是图1所示的网络架构中的网络设备110;该方法可以包括如下步骤:
步骤201,基于候选PDCCH集合,网络设备发送PDCCH;相应的,终端设备基于候选PDCCH集合,接收PDCCH;
PDCCH对应候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
也就是说,网络设备向终端设备发送PDCCH,终端设备通过监听候选PDCCH集合中的候选PDCCH进行PDCCH接收。
其中,终端设备接收的PDCCH对应候选PDCCH集合中的一个或多个候选PDCCH。
为提升PDCCH的覆盖性能,终端设备可以对PDCCH进行重复传输或引入更大的聚合等级。
一方面,若终端设备接收的PDCCH对应候选PDCCH集合中的多个候选PDCCH,则:
1.至少一个候选PDCCH位于CORESET内,并根据搜索空间集合的配置信息确定位于CORESET内的候选PDCCH对应的CCE索引;
2.一个或多个候选PDCCH可以位于CORESET外,根据CORESET内候选PDCCH的资源位置确定CORESET外候选PDCCH的资源位置;
3.提供用于PDCCH重复传输的CORESET配置和/或PDCCH重复传输次数。
另一方面,若终端设备接收的PDCCH对应候选PDCCH集合中的一个候选PDCCH,则:
1.候选PDCCH的聚合等级大于16。
2.提供CCE数量大于16的CORESET配置和/或聚合等级大于16的候选PDCCH个数。
综上所述,本申请实施例所示的方案,基于候选PDCCH集合进行PDCCH的发送和接收,终端设备接收的PDCCH对应候选PDCCH集合中的一个或多个候选PDCCH,终端设备可以对PDCCH进行重复传输或引入更大的聚合等级,极大程度上提升PDCCH的覆盖性能,提高NTN系统中数据传输的可靠性。
在一些实施例中,在终端设备接收的PDCCH对应候选PDCCH集合中的多个候选PDCCH的情况下,多个候选PDCCH用于对PDCCH重复传输。
也就是说,若终端设备接收的PDCCH对应候选PDCCH集合中的多个候选PDCCH,则上述多个候选PDCCH可用于对PDCCH进行重复传输,本申请实施例能够提升PDCCH的覆盖性能。
在一些实施例中,上述图2的步骤201可以实现为:
在终端设备接收的PDCCH对应候选PDCCH集合中的多个候选PDCCH的情况下,基于候选PDCCH重复传输集合,终端设备接收PDCCH;候选PDCCH重复传输集合由候选PDCCH集合中的多个候选PDCCH组成。
也就是说,在终端设备接收的PDCCH对应候选PDCCH集合中的多个候选PDCCH的情况下,多个候选PDCCH组成候选PDCCH重复传输集合,候选PDCCH重复传输集合用于所述终端设备接收PDCCH。
在本申请实施例中,终端设备接收的PDCCH对应候选PDCCH集合中的多个候选PDCCH,此时,终端设备可通过监听候选PDCCH集合中的候选PDCCH重复传输集合接收PDCCH重复传输,提高数据传输的可靠性。
请参考图3,其示出了本申请一个示例性实施例提供的候选PDCCH重复传输集合的示意图。
如图3所示,候选PDCCH集合包含候选PDCCH{0,1,2,3},对于PDCCH重复传输,候选PDCCH集合进一步包含候选PDCCH重复传输集合{0,1}。
其中,候选PDCCH重复传输集合#0包含候选PDCCH{0,1},候选PDCCH重复传输集合#1,包含候选PDCCH{2,3}。
终端设备通过监听候选PDCCH重复传输集合#0和#1接收PDCCH重复传输。
在一些实施例中,候选PDCCH重复传输集合中的至少一个候选PDCCH位于第一CORESET内;第一CORESET是PDCCH重复传输所在的CORESET。
也就是说,上述候选PDCCH重复传输集合中的候选PDCCH皆位于第一CORESET内;或者,上述候选PDCCH重复传输集合中的,一部分候选PDCCH位于第一CORESET内,另一部分候选PDCCH位于第一CORESET外;本申请实施例使得PDCCH重复传输的资源配置更加灵活,为将来进一步扩展提供更多空间。
其中,CORESET本身可能没有PDCCH重复传输信息,比如第一CORESET与第一搜索空间集合(SS set)关联时,进行PDCCH重复传输;第一CORESET与第二SS set关联时,不进行PDCCH重复传输。
在一些实施例中,图2所示的方法还包括:
基于搜索空间集合的配置信息,终端设备确定第一候选PDCCH对应的CCE索引;第一候选PDCCH是候选PDCCH重复传输集合中位于第一CORESET内的候选PDCCH中的一个。
也就是说,第一候选PDCCH对应的CCE索引,由搜索空间集合的配置信息确定。
在本申请实施例中,候选PDCCH重复传输集合中的至少一个候选PDCCH位于CORESET内,此时,终端设备可以根据搜索空间集合的配置信息,确定候选PDCCH重复传输集合中位于CORESET内的候选PDCCH对应的CCE索引,即确定第一候选PDCCH对应的CCE索引。
请参考图4,其示出了本申请一个示例性实施例提供的候选PDCCH重复传输集合中位于CORESET内的候选PDCCH对应的CCE索引的示意图。
如图4所示,以CORESET p的CCE数NCCE,p=8,聚合等级L=2,nCI=0,为例, 根据相关技术,终端设备首先确定搜索空间集合s中的候选PDCCH对应CCE索引为:
即,候选PDCCH对应的CCE索引为CCE#0-1。
随后,若候选PDCCH重复传输集合#0中的候选PDCCH#0与搜索空间集合s中的候选PDCCH对应,则终端设备进一步确定候选PDCCH重复传输集合#0中的候选PDCCH#0对应的CCE索引为CCE#0-1。
本申请实施例提供一种通过搜索空间集合的配置信息,确定第一候选PDCCH对应的CCE索引的可行性方案,能够降低标准化复杂度;终端设备根据搜索空间集合中的候选PDCCH对应的CCE索引,确定候选PDCCH重复传输集合中位于CORESET内的候选PDCCH对应的CCE索引,即确定上述第一候选PDCCH对应的CCE索引,从而确定第一候选PDCCH对应的资源位置。
在一些实施例中,上述基于搜索空间集合的配置信息,确定第一候选PDCCH对应的CCE索引,包括:
基于第二候选PDCCH对应的CCE索引,终端设备确定第一候选PDCCH对应的CCE索引;
第二候选PDCCH是搜索空间集合中与第一候选PDCCH具有对应关系的候选PDCCH。
也就是说,第一候选PDCCH对应的CCE索引,由第二候选PDCCH对应的CCE索引确定。
在本申请实施例中,候选PDCCH重复传输集合中位于CORESET内的至少一个候选PDCCH与搜索空间集合中的候选PDCCH具有对应关系。此时,对于与搜索空间集合中的候选PDCCH具有对应关系的候选PDCCH重复传输集合中的候选PDCCH,终端设备可以根据搜索空间集合中的候选PDCCH对应的CCE索引,确定对应的候选PDCCH重复传输集合中的候选PDCCH对应的CCE索引。
本申请实施例提供一种基于对应关系确定第一候选PDCCH对应的CCE索引的可行性方案,能够降低标准化复杂度;第一候选PDCCH与第二候选PDCCH具有对应关系,终端设备可根据第二候选PDCCH的CCE索引,确定第一候选PDCCH的CCE索引,从而确定第一候选PDCCH对应的资源位置。
在一些实施例中,候选PDCCH重复传输集合中位于CORESET内的候选PDCCH,可以对应搜索空间集合中不连续的候选PDCCH;或者,也可以对应搜索空间集合中连续的候选PDCCH。
一方面,若候选PDCCH重复传输集合中位于CORESET内的候选PDCCH对应搜索空间集合中不连续的候选PDCCH。请参考图5,其示出了本申请一个示例性实施例提供的候选PDCCH重复传输集合中的候选PDCCH对应搜索空间集合中不连续的候选PDCCH的示意图。
如图5所示,候选PDCCH重复传输集合#0中的候选PDCCH{0,1},对应搜索空间集合s中的候选PDCCH
此时,候选PDCCH重复传输集合中的候选PDCCH与搜索空间集合中的候选PDCCH具有更灵活的对应关系,使得PDCCH重复传输的资源配置更加灵活。
其中,终端设备可以根据搜索空间集合s中的候选PDCCH对应的CCE索引,确定候选PDCCH重复传输集合#0中的候选PDCCH#0对应的CCE索引,即CCE#0-1;
终端设备可以根据搜索空间集合s中的候选PDCCH对应的CCE索引,确定候选PDCCH重复传输集合#0中的候选PDCCH#1对应的CCE索引,即CCE#4-5。
另一方面,若候选PDCCH重复传输集合中位于CORESET内的候选PDCCH对应搜索空间集合中连续的候选PDCCH。
请参考图6,其示出了本申请一个示例性实施例提供的候选PDCCH重复传输集合中的候选PDCCH对应搜索空间集合中连续的候选PDCCH的示意图。
如图6所示,其与图4对应的搜索空间集合配置相同,终端设备首先确定搜索空间集合中的候选PDCCH对应的CCE索引分别为CCE#0-1和CCE#2-3,若候选PDCCH重复传输集合#0中的候选PDCCH{0,1}与搜索空间集合s中的候选PDCCH一一对应,则终端设备进一步确定候选PDCCH重复传输集合#0中的候选PDCCH{0,1}对应的CCE索引分别为CCE#0-1和CCE#2-3。
其中,候选PDCCH重复传输集合中位于CORESET内的一个候选PDCCH{0,1},即为第一候选PDCCH; 搜索空间集合中与第一候选PDCCH具有对应关系的一个候选PDCCH即为第二候选PDCCH。
在一些实施例中,图2所示的方法还包括:
基于第一候选PDCCH的资源位置,终端设备确定第三候选PDCCH的资源位置;第三候选PDCCH是候选PDCCH重复传输集合中位于第一CORESET内的,除第一候选PDCCH外的候选PDCCH中的任意一个。
也就是说,第三候选PDCCH的资源位置,由第一候选PDCCH的资源位置确定。
在本申请实施例中,候选PDCCH重复传输集合中位于CORESET内的第一候选PDCCH与搜索空间集合中的候选PDCCH对应,候选PDCCH重复传输集合中位于CORESET内的其他候选PDCCH(即第三候选PDCCH)对应的资源位置,根据第一候选PDCCH对应的资源位置确定。
请参考图7,其示出了本申请一个示例性实施例提供的候选PDCCH重复传输集合中第一候选PDCCH对应搜索空间集合中的候选PDCCH的示意图。
如图7所示,候选PDCCH重复传输集合#0中的第一候选PDCCH,如候选PDCCH#0,对应搜索空间集合s中的候选PDCCH而候选PDCCH重复传输集合#0中位于CORESET的其他候选PDCCH(即第三候选PDCCH),如候选PDCCH#1,对应的频域资源根据第一候选PDCCH确定,如候选PDCCH#1与候选PDCCH#0占用相邻的CCE索引或相邻的频域资源。
也就是说,可以根据候选PDCCH重复传输集合中位于CORESET内的一个候选PDCCH的CCE索引或频域资源,确定其他候选PDCCH的CCE索引或频域资源;本申请实施例可以提高PDCCH重复传输的可行性。
在一些实施例中,候选PDCCH重复传输集合中的候选PDCCH具有以下至少一种对应关系:
候选PDCCH重复传输集合中的候选PDCCH对应搜索空间集合中连续的候选PDCCH;
候选PDCCH重复传输集合中的候选PDCCH对应连续的CCE索引;
候选PDCCH重复传输集合中的候选PDCCH对应连续的资源位置。
也就是说,上述对应关系可以是以下三种:候选PDCCH重复传输集合中的候选PDCCH对应搜索空间集合中连续的候选PDCCH;或者,对应连续的CCE索引;或者,对应连续的资源位置;也可以是三种对应关系的任意组合;本申请实施例可以简化终端设备接收PDCCH的流程,从而可以降低工作量。
其中,候选PDCCH重复传输集合中位于CORESET内的候选PDCCH,对应搜索空间集合中连续的候选PDCCH。如图6所示,候选PDCCH重复传输集合#0中的候选PDCCH{0,1},对应搜索空间集合s中的候选PDCCH此时,终端设备可以根据候选PDCCH重复传输集合中位于CORESET内的一个候选PDCCH对应的CCE索引,确定候选PDCCH重复传输集合中位于CORESET内的其他候选PDCCH对应的CCE索引,从而降低终端设备检测PDCCH重复传输的复杂度。
也就说是,若终端设备根据搜索空间集合s中的候选PDCCH(即第二候选PDCCH)对应的CCE索引,确定候选PDCCH重复传输集合#0中的候选PDCCH#0(即第一候选PDCCH)对应的CCE索引,即CCE#0-1;那么,基于连续对应关系,也可以根据候选PDCCH重复传输集合#0中的候选PDCCH#0(即第一候选PDCCH)对应的CCE索引,确定候选PDCCH重复传输集合#0中的候选PDCCH#1对应的CCE索引,即CCE#2-3。
其中,搜索空间集合s中的候选PDCCH与搜索空间集合s中的候选PDCCH(即第二候选PDCCH)相邻,候选PDCCH重复传输集合#0中的候选PDCCH#1与候选PDCCH重复传输集合#0中的候选PDCCH#0(即第一候选PDCCH)相邻;
搜索空间集合s中的候选PDCCH与候选PDCCH重复传输集合#0中的候选PDCCH#1具有对应关系,搜索空间集合s中的候选PDCCH(即第二候选PDCCH)与候选PDCCH重复传输集合#0中的候选PDCCH#0(即第一候选PDCCH)具有对应关系。
在一些实施例中,候选PDCCH重复传输集合中的至少一个候选PDCCH位于第一CORESET外。
也就是说,上述候选PDCCH重复传输集合中的候选PDCCH皆位于第一CORESET外;或者,上述候选PDCCH重复传输集合中的,一部分候选PDCCH位于第一CORESET外,另一部分候选PDCCH位于第一CORESET内;本申请实施例使得PDCCH重复传输的资源配置更加灵活,为将来进一步扩展提供更多空间。
请参考图8,其示出了本申请一个示例性实施例提供的候选PDCCH重复传输集合中的部分候选PDCCH位于CORESET外的示意图。
如图8所示,以CORESET p的CCE数NCCE,p=4,聚合等级L=4,nCI=0,为例,此时终端设备确定候选PDCCH重复传输集合中的候选PDCCH#0位于CORESET内,候选PDCCH#1位于CORESET外。
在一些实施例中,图2所示的方法还包括:
基于第一候选PDCCH的资源位置,终端设备确定第四候选PDCCH的资源位置;第四候选PDCCH是候选PDCCH重复传输集合中位于第一CORESET外的候选PDCCH中的任意一个。
也就是说,第四候选PDCCH的资源位置,由第一候选PDCCH的资源位置确定。
如图8所示,终端设备首先确定候选PDCCH重复传输集合中位于CORESET内的候选PDCCH#0对应的CCE索引为CCE#0-3,即首先确定第一候选PDCCH的资源位置。随后,在CORESET外确定一个或多个资源区域,例如资源区域与CORESET具有相同大小,并在资源区域中确定候选PDCCH#1对应的资源位置,即再确定第四候选PDCCH的资源位置。
需要说明的是,CORESET外资源区域的个数取决于CORESET外候选PDCCH的个数。
比如,CORESET外仅存在一个候选PDCCH时,仅需要一个CORESET外的资源区域。
在本申请实施例提供一种候选PDCCH重复传输集合中位于第一CORESET外的候选PDCCH的资源确定方案,终端设备根据候选PDCCH重复传输集合中位于CORESET内的候选PDCCH的资源位置,确定候选PDCCH重复传输集合中位于CORESET外的候选PDCCH的资源位置;从而可以降低资源确定的工作量。
在一些实施例中,第一候选PDCCH,以及第四候选PDCCH采用非交织映射;或者,
第一候选PDCCH,以及第四候选PDCCH采用交织映射;或者,
第一候选PDCCH采用交织映射,第四候选PDCCH采用非交织映射。
也就是说,候选PDCCH重复传输集合中位于CORESET内的候选PDCCH,以及候选PDCCH重复传输集合中位于CORESET内的候选PDCCH,可以采用相同的CCE-REG映射方式,也可以采用不同的CCE-REG映射方式;本申请实施例可以提高本方案的灵活性,为将来进一步扩展提供更多空间。
一方面,PDCCH重复传输集合中位于CORESET内的候选PDCCH(即第一候选PDCCH),采用非交织映射;PDCCH重复传输集合中位于CORESET外的候选PDCCH(即第四候选PDCCH),同样采用非交织映射。
如图8所示,候选PDCCH重复传输集合中位于CORESET内的候选PDCCH#0采用非交织映射,且对应CCE#0-3;位于CORESET外的候选PDCCH#1在CORESET外的资源区域中同样采用非交织映射,且对应CCE#0-3。
另一方面,PDCCH重复传输集合中位于CORESET内的候选PDCCH(即第一候选PDCCH),采用交织映射;PDCCH重复传输集合中位于CORESET外的候选PDCCH(即第四候选PDCCH),同样采用交织映射。
请参考图9,其示出了本申请一个示例性实施例提供的候选PDCCH重复传输集合中CORESET外的候选PDCCH采用交织映射的示意图。
如图9所示,以CORESET p的CCE数NCCE,p=4,聚合等级L=2,nCI=0,交织器行数R=2为例,候选PDCCH重复传输集合中位于CORESET内的候选PDCCH#0采用交织映射,且对应CCE#0-1;位于CORESET外的候选PDCCH#1在CORESET外的资源区域中同样采用交织映射,且对应CCE#0-1。
又一方面,PDCCH重复传输集合中位于CORESET内的候选PDCCH(即第一候选PDCCH),采用交织映射;PDCCH重复传输集合中位于CORESET外的候选PDCCH(即第四候选PDCCH),采用非交织映射。
请参考图10,其示出了本申请一个示例性实施例提供的候选PDCCH重复传输集合中CORESET外的候选PDCCH采用非交织映射的示意图。
如图10所示,以CORESET p的CCE数NCCE,p=4,聚合等级L=2,nCI=0,交织器行数R=2为例,候选PDCCH重复传输集合中位于CORESET内的候选PDCCH#0采用交织映射,且对应CCE#0-1;位于CORESET外的候选PDCCH#1在CORESET外的资源区域中采用非交织映射,且对应CCE#0-1。
其中,此时CORESET外的候选PDCCH可以占用连续的频域资源。
在一些实施例中,图2所示的方法还包括:
基于第一CORESET的配置信息和/或PDCCH重复传输次数,终端设备确定用于PDCCH重复传输的 资源区间。
也就是说,用于PDCCH重复传输的资源区间由第一CORESET的配置信息和/或PDCCH重复传输次数确定。
其中,考虑到候选PDCCH重复传输集合中的多个候选PDCCH占用更多的REG,因此需要配置具有更多REG的资源区域,以容纳候选PDCCH重复传输集合中的多个候选PDCCH;本申请实施例提供一种确定用于PDCCH重复传输的资源区间的可行性方案,从而更好地满足PDCCH重复传输的需求。
具体比如,终端设备根据CORESET配置和/或PDCCH重复传输次数,确定用于PDCCH重复传输的资源区域。
在一些实施例中,上述基于CORESET配置和/或PDCCH重复传输次数,确定用于PDCCH重复传输的资源区间,包括:
基于第一CORESET候选值集合,以及MIB的指示信息,终端设备确定第一CORESET;
第一CORESET候选值集合是PDCCH重复传输所在的CORESET候选值集合。
也就是说,第一CORESET,由第一CORESET候选值集合,以及MIB的指示信息确定。
其中,对于CORESET0,引入用于PDCCH重复传输的CORESET候选值集合,终端设备根据MIB中CORESET0配置的指示信息从CORESET候选值集合中确定应用的CORESET。
比如,对于CORESET0,引入用于PDCCH重复传输的CORESET候选值集合,如且网络设备通过MIB中CORESET0配置的指示信息指示终端设备使用则终端设备确定用于PDCCH重复传输的CORESET具有个RBs和个符号。
在本申请实施例提供一种PDCCH重复传输所在的CORESET的确定方案,终端设备可以根据PDCCH重复传输所在的CORESET候选值集合,以及MIB的指示信息,确定PDCCH重复传输所在的CORESET;本申请实施例引入用于PDCCH重复传输的CORESET候选值集合,利用现有的MIB指示信息,可以简化第一CORESET的获取流程,降低标准化复杂度。
在一些实施例中,PDCCH重复传输次数,等于候选PDCCH重复传输集合中候选PDCCH的个数。
也就是说,一个候选PDCCH重复传输集合的PDCCH重复传输次数等于该候选PDCCH重复传输集合中候选PDCCH的个数。
请参考图11,其示出了本申请一个示例性实施例提供的根据CORESET配置和PDCCH重复传输次数确定PDCCH重复传输区域的示意图。
如图11(a)所示,对于CORESET0,目前最大允许配置个RBs和个符号,能够支持3个聚合等级L=16的候选PDCCH。对于PDCCH重复传输,若允许配置CORESET具有个RBs和个符号,即64个CCEs,则能够支持4个聚合等级L=16的候选PDCCH。
如图11(b)所示,网络设备配置CORESET具有个RBs和个符号,同时配置PDCCH重复传输次数等于4,则终端设备确定用于PDCCH重复传输的资源区域具有 个REG,即64个CCEs,能够支持4个聚合等级L=16的候选PDCCH。其中1个候选PDCCH位于CORESET内,另外3个候选PDCCH位于CORESET外。
在本申请实施例提供一种PDCCH重复传输次数的获取方案,终端设备可以将候选PDCCH重复传输集合中候选PDCCH的个数,视为对应的PDCCH重复传输次数,以提升PDCCH覆盖性能。
在一些实施例中,图2所示的方法还包括:
基于CORESET配置信息或搜索空间集合配置信息,终端设备获取PDCCH重复传输次数。
也就是说,PDCCH重复传输次数,由CORESET配置信息或搜索空间集合配置信息确定。
其中,在CORESET配置信息或搜索空间集合配置信息中提供PDCCH重复传输次数。
比如,在CORESET0的配置信息中提供PDCCH重复传输次数,则终端设备接收CORESET0配置信息时确定对应的PDCCH重复传输次数。
再比如,在搜索空间集合配置信息中提供PDCCH重复传输次数,则终端设备接收搜索空间集合配置信息时确定对应的PDCCH重复传输次数。
本申请实施例提供一种PDCCH重复传输次数的获取方案,终端设备可以根据CORESET配置信息或搜索空间集合配置信息,确定需要的PDCCH重复传输次数;能够降低获取PDCCH重复传输次数的工作量,同时为将来进一步扩展提供更多空间。
在一些实施例中,图2所示的方法还包括:
基于候选PDCCH索引,或者候选PDCCH对应的起始CCE索引,终端设备获取PDCCH重复传输次数。
也就是说,PDCCH重复传输次数,与候选PDCCH索引或者候选PDCCH对应的起始CCE索引相关联。
例如,PDCCH重复传输次数候选值包括Nrep={2,4},则候选PDCCH索引时,对应Nrep=2;时,对应Nrep=4。又例如,候选PDCCH的起始CCE索引(ncce,0/L)mod 2=0时,对应Nrep=2;(ncce,0/L)mod 2=1时,对应Nrep=4。
在本申请实施例提供一种PDCCH重复传输次数的获取方案,终端设备可以根据候选PDCCH索引,或者候选PDCCH对应的起始CCE索引,确定需要的PDCCH重复传输次数;能够降低获取PDCCH重复传输次数的工作量,同时为将来进一步扩展提供更多空间。
在一些实施例中,图2所示的方法还包括:
基于PBCH中的指示信息,终端设备确定是否应用第一CORESET候选值集合和/或PDCCH重复传输次数。
也就是说,是否应用第一CORESET候选值集合和/或PDCCH重复传输次数,由PBCH中的指示信息确定。
其中,对于CORESET0,终端设备根据PBCH中的指示信息确定是否应用PDCCH重复传输流程,PDCCH重复传输流程包括以下至少之一种:第一CORESET候选值集合、PDCCH重复传输次数。
比如,当前PBCH信息比特为预留比特,可以用于指示是否应用PDCCH重复传输流程,如时指示不应用PDCCH重复传输流程,时指示应用PDCCH重复传输流程。
PDCCH重复传输流程包括针对PDCCH重复传输引入的CORESET候选值集合和/或PDCCH重复传输次数。
在本申请实施例提供一种是否应用第一CORESET候选值集合、PDCCH重复传输次数的确定方案,进一步优化PDCCH重复传输流程,使得本方案具有更大的灵活性。
在一些实施例中,在终端设备接收的PDCCH对应候选PDCCH集合中的一个候选PDCCH的情况下,一个候选PDCCH的聚合等级大于16。
也就是说,若终端设备接收的PDCCH对应候选PDCCH集合中的一个候选PDCCH,则候选PDCCH的聚合等级大于16,本申请实施例能够提升PDCCH的覆盖性能。
此时,对于CORESET p关联的搜索空间集合s,在时隙聚合等级为L>16时,如L=32,终端设备确定候选PDCCH对应CCE索引为:
即与聚合等级为L≤16时,候选PDCCH对应CCE索引的确定公式相同。
考虑到聚合等级L>16的候选PDCCH占用更多的REG,因此需要配置具有更多REG的CORESET,以容纳聚合等级L>16的候选PDCCH。
在一些实施例中,图2所示的方法还包括:
基于第二CORESET候选值集合,以及MIB的指示信息,终端设备确定第二CORESET;
第二CORESET候选值集合是CCE数量大于16的CORESET候选值集合,第二CORESET是CCE数量大于16的CORESET。
也就是说,第二CORESET由第二CORESET候选值集合,以及MIB的指示信息确定。
在一些实施例中,对于CORESET0,引入CCE数量>16的CORESET候选值集合,终端设备根据MIB中CORESET0配置的指示信息从CORESET候选值集合中确定应用的CORESET。
例如,对于CORESET0,引入CCE数量>16的CORESET候选值集合,如 且网络设备通过MIB中CORESET0配置的指示信息指示终端设备使用则终端设备确定CORESET具有个RBs和个符号,支持聚合等级L=64的候选PDCCH。
在本申请实施例提供一种CCE数量大于16的CORESET的确定方案,以支持聚合等级大于16的候选PDCCH,从而提升PDCCH的覆盖性能。
在一些实施例中,图2所示的方法还包括:
基于PBCH中的指示信息,终端设备确定是否应用第二CORESET候选值集合和/或聚合等级大于16的PDCCH。
也就是说,是否应用第二CORESET候选值集合和/或聚合等级大于16的PDCCH,由PBCH中的指示信息确定。
本申请实施例提供一种是否应用第二CORESET候选值集合、聚合等级大于16的PDCCH的确定方案,进一步优化PDCCH传输流程,从而降低本方案的工作量。
在一些实施例中,图2所示的方法还包括:
基于搜索空间集合的配置信息,终端设备确定候选PDCCH集合中第五候选PDCCH的个数;第五候选PDCCH是聚合等级大于16的候选PDCCH。
也就是说,候选PDCCH集合中第五候选PDCCH的个数,由搜索空间集合的配置信息确定。
在本申请实施例提供一种聚合等级大于16的候选PDCCH的数量确定方案,引入更大的聚合等级,有助于提升PDCCH覆盖性能。
在一些实施例中,在搜索空间集合配置信息中提供聚合等级L>16的候选PDCCH个数。
例如,在搜索空间集合s的配置信息中提供聚合等级L=32的候选PDCCH个数则终端设备确定对于搜索空间集合s,聚合等级为L=32时,候选PDCCH个数
在相关技术中,终端设备通过在CORESET内监听候选PDCCH集合中的候选PDCCH进行PDCCH接收,其中接收的PDCCH对应候选PDCCH集合中的一个候选PDCCH。
为提升PDCCH的覆盖性能,本申请对PDCCH进行重复传输或引入更大的聚合等级。此时,在一些实施例中,终端设备通过监听候选PDCCH集合中的候选PDCCH进行PDCCH接收,其中,接收的PDCCH对应候选PDCCH集合中的一个或多个候选PDCCH。
本申请的技术方案提供了一种PDCCH覆盖增强的设计方案,包括:终端设备接收的PDCCH对应候选PDCCH集合中的一个或多个候选PDCCH。
若接收的PDCCH对应多个候选PDCCH,则通过PDCCH重复传输提升PDCCH覆盖性能:
1)至少一个候选PDCCH位于CORESET内,则终端设备可以根据搜索空间集合的配置信息,确定位于CORESET内候选PDCCH对应的CCE索引;
2)一个或多个候选PDCCH可以位于CORESET外,则终端设备可以根据CORESET内候选PDCCH的资源位置,确定CORESET外候选PDCCH的资源位置;
3)提供用于PDCCH重复传输的CORESET配置和/或PDCCH重复传输次数,则终端设备可以确定用于PDCCH重复传输的资源区域和PDCCH重复传输次数。
若接收的PDCCH对应一个候选PDCCH:
1)候选PDCCH的聚合等级大于16,则通过更大的聚合等级提升PDCCH覆盖性能;
2)提供聚合等级大于16对应的CORESET配置和候选PDCCH个数,则终端设备可以确定聚合等级大于16的候选PDCCH对应的CCE索引。
本申请的技术方案基于NTN系统进行设计,可扩展至任意应用终端设备上报警报信息方案的系统。
请参考图12,其示出了本申请一个实施例提供的PDCCH的接收装置的框图。该PDCCH的接收装置具有实现上述图2所示的方法中,由终端设备执行的功能。如图12所示,该装置可以包括:
接收模块1201,用于基于候选PDCCH集合,接收PDCCH;
PDCCH对应候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
在一些实施例中,在PDCCH对应候选PDCCH集合中的多个候选PDCCH的情况下,多个候选PDCCH用于对PDCCH重复传输。
在一些实施例中,接收模块1201,用于,
在PDCCH对应候选PDCCH集合中的多个候选PDCCH的情况下,基于候选PDCCH重复传输集合,接收PDCCH;
候选PDCCH重复传输集合由候选PDCCH集合中的多个候选PDCCH组成。
在一些实施例中,候选PDCCH重复传输集合中的至少一个候选PDCCH位于第一CORESET内;第一CORESET是PDCCH重复传输所在的CORESET。
在一些实施例中,该装置还包括第一确定模块,用于,
基于搜索空间集合的配置信息,确定第一候选PDCCH对应的CCE索引;
第一候选PDCCH是候选PDCCH重复传输集合中位于第一CORESET内的候选PDCCH中的一个。
在一些实施例中,第一确定模块,用于,
基于第二候选PDCCH对应的CCE索引,确定第一候选PDCCH对应的CCE索引;
第二候选PDCCH是搜索空间集合中与第一候选PDCCH具有对应关系的候选PDCCH。
在一些实施例中,该装置还包括第二确定模块,用于,
基于第一候选PDCCH的资源位置,确定第三候选PDCCH的资源位置;
第三候选PDCCH是候选PDCCH重复传输集合中位于第一CORESET内的,除第一候选PDCCH外的候选PDCCH中的任意一个。
在一些实施例中,候选PDCCH重复传输集合中的候选PDCCH具有以下至少一种对应关系:
候选PDCCH重复传输集合中的候选PDCCH对应搜索空间集合中连续的候选PDCCH;
候选PDCCH重复传输集合中的候选PDCCH对应连续的CCE索引;
候选PDCCH重复传输集合中的候选PDCCH对应连续的资源位置。
在一些实施例中,候选PDCCH重复传输集合中的至少一个候选PDCCH位于第一CORESET外。
在一些实施例中,该装置还包括第三确定模块,用于,
基于第一候选PDCCH的资源位置,确定第四候选PDCCH的资源位置;
第四候选PDCCH是候选PDCCH重复传输集合中位于第一CORESET外的候选PDCCH中的任意一个。
在一些实施例中,
第一候选PDCCH,以及第四候选PDCCH采用非交织映射;或者,
第一候选PDCCH,以及第四候选PDCCH采用交织映射;或者,
第一候选PDCCH采用交织映射,第四候选PDCCH采用非交织映射。
在一些实施例中,该装置还包括第四确定模块,用于,
基于第一CORESET的配置信息和/或PDCCH重复传输次数,确定用于PDCCH重复传输的资源区间。
在一些实施例中,第四确定模块,用于,
基于第一CORESET候选值集合,以及MIB的指示信息,确定第一CORESET;
第一CORESET候选值集合是PDCCH重复传输所在的CORESET的候选值集合。
在一些实施例中,PDCCH重复传输次数,等于候选PDCCH重复传输集合中候选PDCCH的个数。
在一些实施例中,该装置还包括第一获取模块,用于,
基于CORESET配置信息或搜索空间集合配置信息,获取PDCCH重复传输次数。
在一些实施例中,该装置还包括第二获取模块,用于,
基于候选PDCCH索引,或者候选PDCCH对应的起始CCE索引,获取PDCCH重复传输次数。
在一些实施例中,该装置还包括第五确定模块,用于,
基于PBCH中的指示信息,确定是否应用第一CORESET候选值集合和/或PDCCH重复传输次数。
在一些实施例中,在PDCCH对应候选PDCCH集合中的一个候选PDCCH的情况下,一个候选PDCCH的聚合等级大于16。
在一些实施例中,该装置还包括第六确定模块,用于,
基于第二CORESET候选值集合,以及MIB的指示信息,确定第二CORESET;
第二CORESET候选值集合是CCE数量大于16的CORESET候选值集合,第二CORESET是CCE数量大于16的CORESET。
在一些实施例中,该装置还包括第七确定模块,用于,
基于PBCH中的指示信息,确定是否应用第二CORESET候选值集合和/或聚合等级大于16的PDCCH。
在一些实施例中,该装置还包括第八确定模块,用于,
基于搜索空间集合的配置信息,确定候选PDCCH集合中第五候选PDCCH的个数;
第五候选PDCCH是聚合等级大于16的候选PDCCH。
请参考图13,其示出了本申请一个实施例提供的PDCCH的发送装置的框图。该PDCCH的发送装置具有实现上述图2所示的方法中,由网络设备执行的功能。如图13所示,该装置可以包括:
发送模块1301,用于基于候选PDCCH集合,向终端设备发送PDCCH;PDCCH对应候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
在一些实施例中,在PDCCH对应候选PDCCH集合中的多个候选PDCCH的情况下,多个候选PDCCH用于对PDCCH重复传输。
在一些实施例中,在PDCCH对应候选PDCCH集合中的多个候选PDCCH的情况下,多个候选PDCCH组成候选PDCCH重复传输集合。
在一些实施例中,候选PDCCH重复传输集合中的至少一个候选PDCCH位于第一CORESET内;
第一CORESET是PDCCH重复传输所在的CORESET。
在一些实施例中,第一候选PDCCH对应的CCE索引,由搜索空间集合的配置信息确定;
第一候选PDCCH是候选PDCCH重复传输集合中位于第一CORESET内的候选PDCCH中的一个。
在一些实施例中,第一候选PDCCH对应的CCE索引,由第二候选PDCCH对应的CCE索引确定;
第二候选PDCCH是搜索空间集合中与第一候选PDCCH具有对应关系的候选PDCCH。
在一些实施例中,第三候选PDCCH的资源位置,由第一候选PDCCH的资源位置确定;
第三候选PDCCH是候选PDCCH重复传输集合中位于第一CORESET内的,除第一候选PDCCH外的候选PDCCH中的任意一个。
在一些实施例中,候选PDCCH重复传输集合中的候选PDCCH具有以下至少一种对应关系:
候选PDCCH重复传输集合中的候选PDCCH对应搜索空间集合中连续的候选PDCCH;
候选PDCCH重复传输集合中的候选PDCCH对应连续的CCE索引;
候选PDCCH重复传输集合中的候选PDCCH对应连续的资源位置。
在一些实施例中,候选PDCCH重复传输集合中的至少一个候选PDCCH位于第一CORESET外。
在一些实施例中,第四候选PDCCH的资源位置,由第一候选PDCCH的资源位置确定;
第四候选PDCCH是候选PDCCH重复传输集合中位于第一CORESET外的候选PDCCH中的任意一个。
在一些实施例中,第一候选PDCCH,以及第四候选PDCCH采用非交织映射;或者,
第一候选PDCCH,以及第四候选PDCCH采用交织映射;或者,
第一候选PDCCH采用交织映射,第四候选PDCCH采用非交织映射。
在一些实施例中,用于PDCCH重复传输的资源区间,由第一CORESET的配置信息和/或PDCCH重复传输次数确定。
在一些实施例中,第一CORESET,由第一CORESET候选值集合,以及MIB的指示信息确定;
第一CORESET候选值集合是用于PDCCH重复传输的CORESET候选值集合。
在一些实施例中,PDCCH重复传输次数,等于候选PDCCH重复传输集合中候选PDCCH的个数。
在一些实施例中,PDCCH重复传输次数,由CORESET配置信息或搜索空间集合配置信息确定。
在一些实施例中,PDCCH重复传输次数,由候选PDCCH索引,或者候选PDCCH对应的起始CCE索引确定。
在一些实施例中,是否应用第一CORESET候选值集合和/或PDCCH重复传输次数,由PBCH中的指示信息确定。
在一些实施例中,在PDCCH对应候选PDCCH集合中的一个候选PDCCH的情况下,一个候选PDCCH的聚合等级大于16。
在一些实施例中,第二CORESET,由第二CORESET候选值集合,以及MIB的指示信息确定;
第二CORESET候选值集合是CCE数量大于16的CORESET候选值集合,第二CORESET是CCE数量大于16的CORESET。
在一些实施例中,是否应用第二CORESET候选值集合和/或聚合等级大于16的PDCCH,由PBCH中的指示信息确定。
在一些实施例中,候选PDCCH集合中第五候选PDCCH的个数,由搜索空间集合的配置信息确定;
第五候选PDCCH是聚合等级大于16的候选PDCCH。
需要说明的一点是,上述实施例提供的装置在实现其功能时,仅以上述各个功能模块的划分进行举例说明,实际应用中,可以根据实际需要而将上述功能分配由不同的功能模块完成,即将设备的内容结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。
关于上述实施例中的装置,其中各个模块执行操作的具体方式已经在有关该方法的实施例中进行了详细描述,此处将不做详细阐述说明。
请参考图14,其示出了本申请一个实施例提供的通信设备1400的结构示意图。该通信设备1400可以包括:处理器1401、接收器1402、发射器1403、存储器1404和总线1405。
处理器1401包括一个或者一个以上处理核心,处理器1401通过运行软件程序以及模块,从而执行各种功能应用以及信息处理。
接收器1402和发射器1403可以实现为一个通信组件,该通信组件可以是一块通信芯片。该通信芯片也可以称为收发器。存储器1404通过总线1405与处理器1401相连。存储器1404可用于存储计算机程序, 处理器1401用于执行该计算机程序,以实现上述方法实施例中的各个步骤。
此外,存储器1404可以由任何类型的易失性或非易失性存储设备或者它们的组合实现,易失性或非易失性存储设备包括但不限于:磁盘或光盘,电可擦除可编程只读存储器,可擦除可编程只读存储器,静态随时存取存储器,只读存储器,磁存储器,快闪存储器,可编程只读存储器。
在一个示例性的方案中,当通信设备1400实现为上述终端设备时,接收器1402和处理器1401执行计算机程序,以使得通信设备实现图2所示的方法中,由终端设备执行的各个步骤。此时,上述接收器1402可以对应实现由图12中的接收模块1201实现的方法和步骤,发射器1403可以对应实现由图12中的发送模块实现的方法和步骤。
在一个示例性的方案中,当通信设备1400实现为上述网络设备时,发射器1403和处理器1401执行计算机程序,以使得通信设备实现图2所示的方法中,由网络设备执行的各个步骤。此时,上述发射器1403可以对应实现由图13中的发送模块1301实现的方法和步骤,接收器1402可以对应实现由图13中的接收模块实现的方法和步骤。
本申请实施例还提供了一种计算机可读存储介质,存储介质中存储有计算机程序,计算机程序由处理器加载并执行以实现上述图2所示的方法中,由终端设备或者网络设备执行的全部或者部分步骤。
本申请还提供了一种芯片,该芯片用于在通信设备中运行,以使得通信设备执行上述图2所示的方法中,由终端设备或者网络设备执行的全部或者部分步骤。
本申请还提供了一种计算机程序产品,该计算机程序产品或计算机程序包括计算机指令,该计算机指令存储在计算机可读存储介质中。通信设备的处理器从计算机可读存储介质读取该计算机指令,处理器执行该计算机指令,使得通信设备执行上述图2所示的方法中,由终端设备或者网络设备执行的全部或者部分步骤。
本申请还提供了一种计算机程序,该计算机程序由通信设备的处理器执行,以实现上述图2所示的方法中,由终端设备或者网络设备执行的全部或者部分步骤。
本领域技术人员应该可以意识到,在上述一个或多个示例中,本申请实施例所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时,可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质,其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上仅为本申请的示例性实施例,并不用以限制本申请,凡在本申请的精神和原则之内,所作的任何修改、等同替换、改进等,均应包括在本申请的保护范围之内。

Claims (50)

  1. 一种PDCCH的接收方法,其特征在于,所述方法由终端设备执行,所述方法包括:
    基于候选PDCCH集合,接收PDCCH;
    所述PDCCH对应所述候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
  2. 根据权利要求1所述的方法,其特征在于,在所述PDCCH对应所述候选PDCCH集合中的多个候选PDCCH的情况下,所述多个候选PDCCH用于对所述PDCCH重复传输。
  3. 根据权利要求1或2所述的方法,其特征在于,所述基于候选PDCCH集合,接收PDCCH,包括:
    在所述PDCCH对应所述候选PDCCH集合中的多个候选PDCCH的情况下,基于候选PDCCH重复传输集合,接收所述PDCCH;
    所述候选PDCCH重复传输集合由所述候选PDCCH集合中的多个候选PDCCH组成。
  4. 根据权利要求3所述的方法,其特征在于,所述候选PDCCH重复传输集合中的至少一个候选PDCCH位于第一CORESET内;所述第一CORESET是PDCCH重复传输所在的CORESET。
  5. 根据权利要求4所述的方法,其特征在于,所述方法还包括:
    基于搜索空间集合的配置信息,确定第一候选PDCCH对应的CCE索引;
    所述第一候选PDCCH是所述候选PDCCH重复传输集合中位于所述第一CORESET内的候选PDCCH中的一个。
  6. 根据权利要求5所述的方法,其特征在于,所述基于搜索空间集合的配置信息,确定第一候选PDCCH对应的CCE索引,包括:
    基于第二候选PDCCH对应的CCE索引,确定所述第一候选PDCCH对应的CCE索引;
    所述第二候选PDCCH是所述搜索空间集合中与所述第一候选PDCCH具有对应关系的候选PDCCH。
  7. 根据权利要求6所述的方法,其特征在于,所述方法还包括:
    基于所述第一候选PDCCH的资源位置,确定第三候选PDCCH的资源位置;
    所述第三候选PDCCH是所述候选PDCCH重复传输集合中位于所述第一CORESET内的,除所述第一候选PDCCH外的候选PDCCH中的任意一个。
  8. 根据权利要求6或7所述的方法,其特征在于,所述候选PDCCH重复传输集合中的候选PDCCH具有以下至少一种对应关系:
    所述候选PDCCH重复传输集合中的候选PDCCH对应搜索空间集合中连续的候选PDCCH;
    所述候选PDCCH重复传输集合中的候选PDCCH对应连续的CCE索引;
    所述候选PDCCH重复传输集合中的候选PDCCH对应连续的资源位置。
  9. 根据权利要求4至8任一所述的方法,其特征在于,所述候选PDCCH重复传输集合中的至少一个候选PDCCH位于所述第一CORESET外。
  10. 根据权利要求9所述的方法,其特征在于,所述方法还包括:
    基于所述第一候选PDCCH的资源位置,确定第四候选PDCCH的资源位置;
    所述第四候选PDCCH是所述候选PDCCH重复传输集合中位于所述第一CORESET外的候选PDCCH中的任意一个。
  11. 根据权利要求10所述的方法,其特征在于,
    所述第一候选PDCCH,以及所述第四候选PDCCH采用非交织映射;或者,
    所述第一候选PDCCH,以及所述第四候选PDCCH采用交织映射;或者,
    所述第一候选PDCCH采用交织映射,所述第四候选PDCCH采用非交织映射。
  12. 根据权利要求4至11任一所述的方法,其特征在于,所述方法还包括:
    基于所述第一CORESET的配置信息和/或PDCCH重复传输次数,确定用于PDCCH重复传输的资源区间。
  13. 根据权利要求12所述的方法,其特征在于,所述基于CORESET配置和/或PDCCH重复传输次数,确定用于PDCCH重复传输的资源区间,包括:
    基于第一CORESET候选值集合,以及MIB的指示信息,确定所述第一CORESET;
    所述第一CORESET候选值集合是PDCCH重复传输所在的CORESET的候选值集合。
  14. 根据权利要求12或13所述的方法,其特征在于,所述PDCCH重复传输次数,等于所述候选PDCCH重复传输集合中候选PDCCH的个数。
  15. 根据权利要求12至14任一所述的方法,其特征在于,所述方法还包括:
    基于CORESET配置信息或搜索空间集合配置信息,获取所述PDCCH重复传输次数。
  16. 根据权利要求12至15任一所述的方法,其特征在于,所述方法还包括:
    基于候选PDCCH索引,或者候选PDCCH对应的起始CCE索引,获取所述PDCCH重复传输次数。
  17. 根据权利要求13或14所述的方法,其特征在于,所述方法还包括:
    基于PBCH中的指示信息,确定是否应用所述第一CORESET候选值集合和/或所述PDCCH重复传输次数。
  18. 根据权利要求1所述的方法,其特征在于,在所述PDCCH对应所述候选PDCCH集合中的一个候选PDCCH的情况下,所述一个候选PDCCH的聚合等级大于16。
  19. 根据权利要求1或18所述的方法,其特征在于,所述方法还包括:
    基于第二CORESET候选值集合,以及MIB的指示信息,确定第二CORESET;
    所述第二CORESET候选值集合是CCE数量大于16的CORESET候选值集合,所述第二CORESET是CCE数量大于16的CORESET。
  20. 根据权利要求19所述的方法,其特征在于,所述方法还包括:
    基于PBCH中的指示信息,确定是否应用所述第二CORESET候选值集合和/或聚合等级大于16的PDCCH。
  21. 根据权利要求18至20任一所述的方法,其特征在于,所述方法还包括:
    基于搜索空间集合的配置信息,确定所述候选PDCCH集合中第五候选PDCCH的个数;
    所述第五候选PDCCH是聚合等级大于16的候选PDCCH。
  22. 一种PDCCH的发送方法,其特征在于,所述方法由网络设备执行,所述方法包括:
    基于候选PDCCH集合,向终端设备发送PDCCH;所述PDCCH对应所述候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
  23. 根据权利要求22所述的方法,其特征在于,所述PDCCH对应所述候选PDCCH集合中的多个候选PDCCH的情况下,所述多个候选PDCCH用于对所述PDCCH重复传输。
  24. 根据权利要求22或23所述的方法,其特征在于,所述PDCCH对应所述候选PDCCH集合中的多个候选PDCCH的情况下,所述多个候选PDCCH组成候选PDCCH重复传输集合。
  25. 根据权利要求24所述的方法,其特征在于,所述候选PDCCH重复传输集合中的至少一个候选PDCCH位于第一CORESET内;
    所述第一CORESET是PDCCH重复传输所在的CORESET。
  26. 根据权利要求25所述的方法,其特征在于,第一候选PDCCH对应的CCE索引,由搜索空间集合的配置信息确定;
    所述第一候选PDCCH是所述候选PDCCH重复传输集合中位于所述第一CORESET内的候选PDCCH中的一个。
  27. 根据权利要求26所述的方法,其特征在于,所述第一候选PDCCH对应的CCE索引,由第二候选PDCCH对应的CCE索引确定;
    所述第二候选PDCCH是所述搜索空间集合中与所述第一候选PDCCH具有对应关系的候选PDCCH。
  28. 根据权利要求27所述的方法,其特征在于,第三候选PDCCH的资源位置,由所述第一候选PDCCH的资源位置确定;
    所述第三候选PDCCH是所述候选PDCCH重复传输集合中位于所述第一CORESET内的,除所述第一候选PDCCH外的候选PDCCH中的任意一个。
  29. 根据权利要求27或28所述的方法,其特征在于,所述候选PDCCH重复传输集合中的候选PDCCH具有以下至少一种对应关系:
    所述候选PDCCH重复传输集合中的候选PDCCH对应搜索空间集合中连续的候选PDCCH;
    所述候选PDCCH重复传输集合中的候选PDCCH对应连续的CCE索引;
    所述候选PDCCH重复传输集合中的候选PDCCH对应连续的资源位置。
  30. 根据权利要求25至29任一所述的方法,其特征在于,所述候选PDCCH重复传输集合中的至少一个候选PDCCH位于所述第一CORESET外。
  31. 根据权利要求30所述的方法,其特征在于,第四候选PDCCH的资源位置,由所述第一候选PDCCH的资源位置确定;
    所述第四候选PDCCH是所述候选PDCCH重复传输集合中位于所述第一CORESET外的候选PDCCH中的任意一个。
  32. 根据权利要求31所述的方法,其特征在于,
    所述第一候选PDCCH,以及所述第四候选PDCCH采用非交织映射;或者,
    所述第一候选PDCCH,以及所述第四候选PDCCH采用交织映射;或者,
    所述第一候选PDCCH采用交织映射,所述第四候选PDCCH采用非交织映射。
  33. 根据权利要求25至32任一所述的方法,其特征在于,用于PDCCH重复传输的资源区间,由所述第一CORESET的配置信息和/或PDCCH重复传输次数确定。
  34. 根据权利要求33所述的方法,其特征在于,所述第一CORESET,由第一CORESET候选值集合,以及MIB的指示信息确定;
    所述第一CORESET候选值集合是用于PDCCH重复传输的CORESET候选值集合。
  35. 根据权利要求33或34所述的方法,其特征在于,所述PDCCH重复传输次数,等于所述候选PDCCH重复传输集合中候选PDCCH的个数。
  36. 根据权利要求33至35任一所述的方法,其特征在于,所述PDCCH重复传输次数,由CORESET配置信息或搜索空间集合配置信息确定。
  37. 根据权利要求33至36任一所述的方法,其特征在于,所述PDCCH重复传输次数,由候选PDCCH索引,或者候选PDCCH对应的起始CCE索引确定。
  38. 根据权利要求34或35任一所述的方法,其特征在于,是否应用所述第一CORESET候选值集合和/或所述PDCCH重复传输次数,由PBCH中的指示信息确定。
  39. 根据权利要求22所述的方法,其特征在于,所述PDCCH对应所述候选PDCCH集合中的一个候选PDCCH的情况下,所述一个候选PDCCH的聚合等级大于16。
  40. 根据权利要求22或39所述的方法,其特征在于,第二CORESET,由第二CORESET候选值集合,以及MIB的指示信息确定;
    所述第二CORESET候选值集合是CCE数量大于16的CORESET候选值集合,所述第二CORESET是CCE数量大于16的CORESET。
  41. 根据权利要求40所述的方法,其特征在于,是否应用所述第二CORESET候选值集合和/或聚合等级大于16的PDCCH,由PBCH中的指示信息确定。
  42. 根据权利要求39至41任一所述的方法,其特征在于,所述候选PDCCH集合中第五候选PDCCH的个数,由搜索空间集合的配置信息确定;
    所述第五候选PDCCH是聚合等级大于16的候选PDCCH。
  43. 一种PDCCH的接收装置,其特征在于,所述装置包括:
    接收模块,用于基于候选PDCCH集合,接收PDCCH;
    所述PDCCH对应所述候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
  44. 一种PDCCH的发送装置,其特征在于,所述装置包括:
    发送模块,用于基于候选PDCCH集合,向终端设备发送PDCCH;所述PDCCH对应所述候选PDCCH集合中的一个候选PDCCH,或者多个候选PDCCH。
  45. 一种终端设备,其特征在于,所述终端设备包括处理器、存储器和收发器;
    所述存储器中存储有计算机程序,所述处理器执行所述计算机程序,以使得所述终端设备实现如上述权利要求1至21任一所述的PDCCH的接收方法。
  46. 一种网络设备,其特征在于,所述网络设备包括处理器、存储器和收发器;
    所述存储器中存储有计算机程序,所述处理器执行所述计算机程序,以使得所述网络设备实现如上述权利要求22至42任一所述的PDCCH的发送方法。
  47. 一种计算机可读存储介质,其特征在于,所述存储介质中存储有计算机程序,所述计算机程序用于被通信设备的处理器执行,以使得所述通信设备实现如权利要求1至42中任一所述的方法。
  48. 一种芯片,其特征在于,所述芯片包括可编程逻辑电路和/或程序指令,所述芯片用于在通信设备中运行,以使得所述通信设备执行如权利要求1至42中任一所述的方法。
  49. 一种计算机程序产品,其特征在于,所述计算机程序产品包括计算机指令,所述计算机指令存储在计算机可读存储介质中;通信设备的处理器从所述计算机可读存储介质读取所述计算机指令,并执行所述计算机指令,使得所述通信设备执行如权利要求1至42中任一所述的方法。
  50. 一种计算机程序,其特征在于,所述计算机程序由通信设备的处理器执行,以使得所述通信设备实现如权利要求1至42中任一所述的方法。
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US20200196283A1 (en) * 2017-06-13 2020-06-18 Lg Electronics Inc. Method for receiving downlink control channel and device therefor
CN111435870A (zh) * 2019-01-11 2020-07-21 中兴通讯股份有限公司 下行控制信道的传输方法及装置、存储介质
CN115244877A (zh) * 2020-03-05 2022-10-25 Oppo广东移动通信有限公司 监听时机的确定方法及装置

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US20200196283A1 (en) * 2017-06-13 2020-06-18 Lg Electronics Inc. Method for receiving downlink control channel and device therefor
CN111435870A (zh) * 2019-01-11 2020-07-21 中兴通讯股份有限公司 下行控制信道的传输方法及装置、存储介质
CN115244877A (zh) * 2020-03-05 2022-10-25 Oppo广东移动通信有限公司 监听时机的确定方法及装置

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