WO2023123099A1 - 物理下行控制信道接收、发送方法和装置 - Google Patents

物理下行控制信道接收、发送方法和装置 Download PDF

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Publication number
WO2023123099A1
WO2023123099A1 PCT/CN2021/142632 CN2021142632W WO2023123099A1 WO 2023123099 A1 WO2023123099 A1 WO 2023123099A1 CN 2021142632 W CN2021142632 W CN 2021142632W WO 2023123099 A1 WO2023123099 A1 WO 2023123099A1
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WIPO (PCT)
Prior art keywords
receiving
pdcch
terminal
downlink control
mode
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PCT/CN2021/142632
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English (en)
French (fr)
Inventor
赵群
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202180004538.8A priority Critical patent/CN114586310A/zh
Priority to PCT/CN2021/142632 priority patent/WO2023123099A1/zh
Publication of WO2023123099A1 publication Critical patent/WO2023123099A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • 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

Definitions

  • the present disclosure relates to the field of communication technologies, and in particular, to a method for receiving a physical downlink control channel, a method for sending a physical downlink control channel, a device for receiving a physical downlink control channel, a device for sending a physical downlink control channel, a communication device, and a computer-readable storage medium.
  • the LTE (Long Term Evolution, long-term evolution) system and the NR (New Radio, new air interface) system can coexist in the same frequency spectrum.
  • the LTE system needs to continuously send CRS (Cell-specific Reference Signal, cell transmission reference signal), which will cause strong interference to the NR system.
  • CRS Cell-specific Reference Signal, cell transmission reference signal
  • the terminal does not expect to receive NR PDCCH on the conflicting RE .
  • RE Resource Element, resource element
  • NR PDCCH Physical Downlink Control Channel
  • embodiments of the present disclosure propose a method for receiving a physical downlink control channel, a method for sending a physical downlink control channel, a device for receiving a physical downlink control channel, a device for sending a physical downlink control channel, a communication device, and a computer-readable storage medium to solve Technical issues in related technologies.
  • a method for receiving a physical downlink control channel is proposed, which is executed by a terminal, and the method includes: determining when the long-term evolution cell-specific reference signal LTE CRS collides with the new air interface physical downlink control channel NR PDCCH Under the circumstances, receive the receiving mode of described NR PDCCH; Receive described NR PDCCH according to described receiving mode.
  • a method for sending a physical downlink control channel is proposed, which is performed by a network side device.
  • the method includes: determining the long-term evolution cell-specific reference signal LTE CRS and the new air interface physical downlink control channel NR PDCCH
  • the terminal receives the receiving mode of the NR PDCCH; and sends indication information to the terminal, wherein the indication information is used to indicate the receiving mode.
  • a physical downlink control channel receiving device including: a processing module configured to determine the conflict between the long-term evolution cell-specific reference signal LTE CRS and the new air interface physical downlink control channel NR PDCCH Next, receive the receiving mode of the NR PDCCH; the receiving module is configured to receive the NR PDCCH according to the receiving mode.
  • a physical downlink control channel sending device including: a processing module configured to determine the conflict between the long-term evolution cell-specific reference signal LTE CRS and the new air interface physical downlink control channel NR PDCCH Next, the terminal receives the receiving mode of the NR PDCCH; the sending module is configured to send indication information to the terminal, wherein the indication information is used to indicate the receiving mode.
  • a communication device including: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, the above method for receiving the physical downlink control channel is implemented .
  • a communication device including: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, the above-mentioned physical downlink control channel transmission method is implemented .
  • a computer-readable storage medium for storing a computer program, and when the computer program is executed by a processor, the steps in the above method for receiving a physical downlink control channel are implemented.
  • a computer-readable storage medium for storing a computer program, and when the computer program is executed by a processor, the steps in the above method for sending a physical downlink control channel are implemented.
  • the terminal may determine a reception mode for receiving the NR PDCCH when the LTE CRS conflicts with the NR PDCCH, and then receive the NR PDCCH according to the reception mode. Accordingly, the terminal can determine an appropriate receiving method according to needs, and receive the NR PDCCH when the LTE CRS and the NR PDCCH conflict. Compared with the related art, which can only receive the NR PDCCH in a fixed receiving method, it is beneficial to ensure the receiving method Adapt to the actual situation.
  • Fig. 1 is a schematic flowchart of a method for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • Fig. 2 is a schematic diagram of LTE CRS according to an embodiment of the present disclosure.
  • Fig. 3 is a schematic diagram showing a collision between NR PDCCH and LTE CRS according to an embodiment of the present disclosure.
  • Fig. 4 is a schematic diagram of puncturing the second resource where the NR PDCCH is located according to the first resource corresponding to the LTE CRS according to an embodiment of the present disclosure.
  • Fig. 5 is a schematic diagram of performing rate matching on the NR PDCCH according to the first resource corresponding to the LTE CRS according to an embodiment of the present disclosure.
  • Fig. 6 is a schematic flowchart of another method for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • Fig. 7 is a schematic flowchart of another method for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • Fig. 8 is a schematic flowchart of another method for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • Fig. 9 is a schematic flowchart of a method for sending a physical downlink control channel according to an embodiment of the present disclosure.
  • Fig. 10 is a schematic flowchart of another method for sending a physical downlink control channel according to an embodiment of the present disclosure.
  • Fig. 11 is a schematic flow chart showing another method for sending a physical downlink control channel according to an embodiment of the present disclosure.
  • Fig. 12 is a schematic block diagram of a device for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • Fig. 13 is a schematic block diagram of an apparatus for sending a physical downlink control channel according to an embodiment of the present disclosure.
  • Fig. 14 is a schematic block diagram of an apparatus for sending a physical downlink control channel according to an embodiment of the present disclosure.
  • Fig. 15 is a schematic block diagram of an apparatus for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • first, second, third, etc. may use the terms first, second, third, etc. to describe various information, the information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another. For example, without departing from the scope of the embodiments of the present disclosure, first information may also be called second information, and similarly, second information may also be called first information. Depending on the context, the word “if” as used herein may be interpreted as “at” or "when” or "in response to a determination.”
  • the terms used herein are “greater than” or “less than”, “higher than” or “lower than” when representing a size relationship. But for those skilled in the art, it can be understood that the term “greater than” also covers the meaning of “greater than or equal to”, and “less than” also covers the meaning of “less than or equal to”; the term “higher than” covers the meaning of “higher than or equal to”. “The meaning of "below” also covers the meaning of "less than or equal to”.
  • Fig. 1 is a schematic flowchart of a method for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • the method for receiving a physical downlink control channel shown in this embodiment can be executed by a terminal, and the terminal includes but is not limited to a communication device such as a mobile phone, a tablet computer, a wearable device, a sensor, and an Internet of Things device.
  • the terminal can communicate with network-side equipment, and the network-side equipment includes but is not limited to network-side equipment in communication systems such as 4G, 5G, and 6G, such as base stations and core networks.
  • the physical downlink control channel receiving method may include the following steps:
  • step S101 determine the receiving mode of receiving the NR PDCCH under the condition that the long-term evolution cell-specific reference signal LTE CRS collides with the new air interface physical downlink control channel NR PDCCH;
  • step S102 the NR PDCCH is received according to the receiving manner.
  • Fig. 2 is a schematic diagram of LTE CRS according to an embodiment of the present disclosure.
  • the LTE cell ID (Cell ID) equal to 0 and the LTE CRS supporting 4 ports as an example, they are antenna port 0, antenna port 1, antenna port 2 and antenna port 3 respectively.
  • the LTE CRS corresponding to each antenna port occupies different resources, and the resources occupied by the LTE CRS corresponding to the four antenna ports are superimposed together as the first resource.
  • RB Resource Block, resource block
  • 14 symbols such as Orthogonal Frequency Division Multiplexing OFDM symbols
  • 12 RE Resource Element, resource element
  • REs are numbered RE#0 to RE#11 from bottom to top.
  • the resources occupied by LTE CRS include the first, second, fifth, eighth, On the 9th and 12th symbols, REs numbered RE#0, RE#3, RE#6, RE#9.
  • the LTE CRS can be sent by the LTE network side device, but the NR network side device can also determine the resource occupied by the LTE CRS, for example, it can be determined by communicating with the LTE network side device, for example, it can also be determined based on the agreement.
  • the terminal can also determine the resources occupied by the LTE CRS, for example, the terminal can determine the resources occupied by the LTE CRS based on the agreement.
  • Fig. 3 is a schematic diagram showing a collision between NR PDCCH and LTE CRS according to an embodiment of the present disclosure.
  • the duration of the control resource set CORESET is 3 time-domain symbols, such as the first 3 symbols in the RB, then for the REs used to carry the NR PDCCH in the CORESET, the first and second On two symbols, the NR PDCCH carried by the REs numbered RE#0, RE#3, and RE#6 conflicts with the LTE CRS. Then on these conflicting REs, the terminal does not expect to receive the NR PDCCH, but in the CORESET On other REs, NR PDCCH still needs to be received.
  • NR PDCCH DMRS Demodulation Reference Signal, demodulation reference signal
  • the numbers on the first and second symbols are RE
  • the #9 RE carrying NR PDCCH DMRS conflicts with LTE CRS, and on these conflicting REs, the terminal will not expect to receive NR PDCCH DMRS.
  • the reception method for the terminal to receive the NR PDCCH is fixed, and is not determined by the terminal or the network side device according to the needs, which makes it difficult to adapt the reception method to the actual situation.
  • the terminal may determine a reception mode for receiving the NR PDCCH when the LTE CRS conflicts with the NR PDCCH, and then receive the NR PDCCH according to the reception mode. Accordingly, the terminal can determine an appropriate receiving method according to needs, and receive the NR PDCCH when the LTE CRS and the NR PDCCH conflict. Compared with the related art, which can only receive the NR PDCCH in a fixed receiving method, it is beneficial to ensure the receiving method Adapt to the actual situation.
  • the receiving method includes at least one of the following:
  • the first receiving method according to the first resource corresponding to the LTE CRS, the second resource where the NR PDCCH is located is punctured;
  • the second receiving manner performing rate matching on the NR PDCCH according to the first resource corresponding to the LTE CRS.
  • the reception method adopted by the terminal includes, for example, two types. One is to puncture the second resource where the NR PDCCH is located according to the first resource corresponding to the LTE CRS, referred to as the first reception method; the other is to puncture the second resource based on the LTE CRS.
  • the first resource corresponding to the LTE CRS performs rate matching and RM allocation on the NR PDCCH, which is referred to as the second receiving method.
  • Fig. 4 is a schematic diagram of puncturing the second resource where the NR PDCCH is located according to the first resource corresponding to the LTE CRS according to an embodiment of the present disclosure.
  • the terminal determines to receive the NR PDCCH in the first receiving manner, and locates the NR PDCCH according to the first resource corresponding to the LTE CRS. Then, for the terminal, regardless of the existence of the LTE CRS, the RE that sends the LTE CRS is regarded as sending the NR PDCCH, and the NR PDCCH is detected on this basis.
  • the process of this method is relatively simple, but it may cause NR PDCCH loss.
  • the terminal when the second resource where the NR PDCCH is located is punctured according to the first resource corresponding to the LTE CRS, the terminal does not consider the existence of the LTE CRS, and regards all REs in the CORESET as It is used to send NR PDCCH and NR PDCCH DMRS, and to detect and receive NR PDCCH on this basis.
  • Fig. 5 is a schematic diagram of performing rate matching on the NR PDCCH according to the first resource corresponding to the LTE CRS according to an embodiment of the present disclosure.
  • the terminal determines to receive the NR PDCCH in the second receiving manner, and performs the NR PDCCH according to the first resource corresponding to the LTE CRS.
  • Rate matching then for the terminal, it can determine the existence of LTE CRS, and then perform rate matching on NR PDCCH according to the first resource corresponding to LTE CRS, such as detecting and receiving NR PDCCH on REs that do not have LTE CRS.
  • the processing complexity of this method is relatively high, and to a certain extent, it will increase the effective code rate of DCI (Downlink Control Information, downlink control information) in NR PDCCH, but this method can ensure the integrity of NR PDCCH to the greatest extent.
  • DCI Downlink Control Information, downlink control information
  • the terminal when the second resource where the NR PDCCH is located is punctured according to the first resource corresponding to the LTE CRS, the terminal determines the existence of the LTE CRS, and uses the CORESET to send the LTE CRS
  • the RE is determined not to be used to send NR PDCCH and NR PDCCH DMRS, and on this basis to detect and receive NR PDCCH.
  • the first receiving method and the second receiving method above are the receiving methods for receiving NR PDCCH for the terminal, and for the network side device, the sending method adopted by the network side device may not be limited to the terminal selection the receiving method.
  • the network side device can first map NR PDCCH on the RE in the CORESET, and then remove the RE corresponding to NR PDCCH on the RE occupied by the LTE CRS, and then send the NR PDCCH.
  • the network side device can also map the NR PDCCH on the RE in the CORESET, and then send the NR PDCCH.
  • Fig. 6 is a schematic flowchart of another method for receiving a physical downlink control channel according to an embodiment of the present disclosure. As shown in FIG. 6 , the determination that the receiving method of receiving the NR PDCCH includes:
  • step S601 receiving indication information sent by the network side device
  • step S602 the receiving mode is determined according to the indication information.
  • the network side device may indicate the receiving mode adopted by the terminal by sending indication information.
  • the terminal indicates the receiving mode. As shown in Table 1:
  • the terminal may store the correspondence between the indication information and the receiving mode as shown in Table 1, where the indication information is 0 to indicate the first receiving mode, and the indication information is 1 to indicate the second receiving mode.
  • the network side device can determine the receiving mode that the terminal needs to adopt according to the actual situation, and then indicate the corresponding receiving mode to the terminal through the indication information, which is beneficial to ensure that the receiving mode adopted by the terminal adapts to the actual situation.
  • the indication information is carried in at least one of the following: radio resource control (Radio Resource Control, RRC) signaling; broadcast information.
  • RRC Radio Resource Control
  • the network side device may send the indication information to the terminal in a unicast manner, for example, send the indication information to the terminal through RRC signaling; it may also send the indication information to the terminal in a broadcast manner, for example, carry the indication information through broadcast information Sending, wherein the broadcast information includes but not limited to system information, paging signaling and so on.
  • Fig. 7 is a schematic flowchart of another method for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • the determination of receiving the NR PDCCH in the case where the long-term evolution cell-specific reference signal LTE CRS collides with the new air interface physical downlink control channel NR PDCCH includes:
  • step S701 the reception mode is determined according to the support capability of the terminal for the reception mode.
  • the terminal can determine its ability to support receiving methods, such as only supporting the first receiving method, only supporting the second receiving method, supporting both the first receiving method and the second receiving method, and then can Determine the receiving method for receiving NR PDCCH, so as to ensure that the selected receiving method is compatible with its own capabilities.
  • the determining the receiving mode according to the terminal's support capability for the receiving mode includes:
  • the terminal In a case where the terminal supports the first receiving manner and the second receiving manner, determine that the default receiving manner is the receiving manner in the first receiving manner and the second receiving manner.
  • the terminal when the terminal determines that it only supports the first receiving method, it may choose to receive NR PDCCH according to the first method; for example, when the terminal determines that it only supports the second receiving method, it may choose to receive NR PDCCH according to the second method.
  • the terminal determines that it supports both the first receiving method and the second receiving method, it can choose to receive NR PDCCH according to the default method.
  • the default method can be the first receiving method or the second receiving method, for example
  • the default mode can be determined based on agreement. Accordingly, it can be ensured that the receiving mode selected by the terminal is compatible with its own capabilities.
  • the method also includes:
  • the terminal can also report information about its own support capability to the network side device, so that the network side device can perform appropriate operations according to the terminal's support capability. For example, the network side device can instruct the terminal to adopt the reception method according to the establishment of the terminal's indication of the receiving mode.
  • the terminal can autonomously determine the receiving method of receiving NR PDCCH according to its own ability to support the receiving method, or it can first report its own ability to support the receiving method to the network side device, and then based on the support capability of the network side device The indication sent determines how the NR PDCCH is received.
  • Fig. 8 is a schematic flowchart of another method for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • the determination of receiving the NR PDCCH in the case where the long-term evolution cell-specific reference signal LTE CRS conflicts with the new air interface physical downlink control channel NR PDCCH includes:
  • step S801 determine the aggregation level corresponding to the PDCCH candidate candidate in the NR PDCCH;
  • step S802 the receiving mode is determined according to the aggregation level.
  • CCEs control channel element, control channel element
  • a PDCCH candidate wherein the number of CCEs aggregated into a PDCCH candidate can be used as an aggregation level (Aggregation Level, AL), for example including but not limited to 1, 2, 4, 8, 16, etc.
  • AL aggregation Level
  • the terminal can determine the aggregation level corresponding to the PDCCH candidate in the NR PDCCH, and then determine the receiving mode according to the aggregation level, thereby ensuring that the adopted receiving mode meets the aggregation level of the PDCCH candidate.
  • the terminal may determine the receiving mode of receiving the NR PDCCH autonomously according to the aggregation level, or may determine the receiving mode of receiving the NR PDCCH according to the indication information sent by the network side device based on the aggregation level.
  • the determining the receiving mode according to the aggregation level includes:
  • the terminal can receive NR PDCCH according to the first receiving method when the aggregation level is relatively large, for example, greater than the first preset threshold; and when the aggregation level is relatively small, for example, it is less than or equal to the first preset threshold.
  • the threshold is set, the NR PDCCH can be received according to the second receiving method.
  • the first preset threshold may be determined based on the agreement, or may be indicated by the network side device, for example, when the aggregation level includes 1, 2, 4, 8, 16, the first preset threshold may be 4, Then when the aggregation level is one of 1, 2, or 4, the NR PDCCH can be received in the second receiving manner, and when the aggregation level is 8 or 16, the NR PDCCH can be received in the first receiving manner.
  • the second receiving manner may be used to perform rate matching on the NR PDCCH according to the first resource corresponding to the LTE CRS, so as to ensure the integrity of the NR PDCCH as much as possible, and ensure that the NR PDCCH can be accurately detected.
  • the aggregation level is relatively high, the number of CCEs contained in the PDCCH candidate is large, and the number of CCEs is large, so the CEs corresponding to the NR PDCCH are relatively large.
  • Punching the second resource where the NR PDCCH is located according to the first resource corresponding to the LTE CRS will not cause the NR PDCCH to lack a large proportion of information, but it can effectively reduce the complexity of detection and shorten the detection time of NR. Time consumption of PDCCH. Therefore, in this case, the NR PDCCH can be received in the first receiving manner.
  • the first receiving method is used to receive NR PDCCH
  • the second receiving method is used to receive NR PDCCH, which is only one implementation among multiple embodiments of the present disclosure.
  • the logic for determining the receiving mode according to the aggregation level can also be determined as needed. For example:
  • the determining the receiving mode according to the aggregation level includes: when the aggregation level is greater than a second preset threshold, determining the second receiving mode as the receiving mode; When the level is less than or equal to a second preset threshold, determine that the first receiving mode is the receiving mode.
  • the second threshold may be the same as or different from the above-mentioned first threshold.
  • the receiving mode according to the aggregation level it may be determined based on the agreement, or may be determined according to the instruction of the network side device.
  • Fig. 9 is a schematic flowchart of a method for sending a physical downlink control channel according to an embodiment of the present disclosure.
  • the physical downlink control channel transmission method shown in this embodiment can be performed by network-side equipment, which can communicate with terminals, and the network-side equipment includes but is not limited to 4G base stations, 5G base stations, 6G base stations, and other communication systems
  • the base station, the terminal includes but is not limited to communication devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices.
  • the physical downlink control channel sending method may include the following steps:
  • step S901 it is determined that in the case where the long-term evolution cell-specific reference signal LTE CRS collides with the new air interface physical downlink control channel NR PDCCH, the terminal receives the reception mode of the NR PDCCH;
  • step S902 send indication information to the terminal, where the indication information is used to indicate the receiving manner.
  • the network side device may determine the reception mode for the terminal to receive the NR PDCCH when the LTE CRS conflicts with the NR PDCCH, and then receive the NR PDCCH according to the reception mode. Accordingly, the network-side device can determine an appropriate receiving method as needed and indicate it to the terminal, so that the terminal can receive the NR PDCCH when the LTE CRS and the NR PDCCH conflict according to the indicated receiving method. Receiving NR PDCCH in a fixed receiving method is beneficial to ensure that the receiving method adapts to the actual situation.
  • the receiving method includes at least one of the following:
  • the first receiving method according to the first resource corresponding to the LTE CRS, the second resource where the NR PDCCH is located is punctured;
  • the second receiving manner performing rate matching on the NR PDCCH according to the first resource corresponding to the LTE CRS.
  • the reception method adopted by the terminal includes, for example, two types. One is to puncture the second resource where the NR PDCCH is located according to the first resource corresponding to the LTE CRS, referred to as the first reception method; the other is to puncture the second resource based on the LTE CRS.
  • the first resource corresponding to the LTE CRS performs rate matching and RM allocation on the NR PDCCH, which is referred to as the second receiving method.
  • Fig. 4 is a schematic diagram of puncturing the second resource where the NR PDCCH is located according to the first resource corresponding to the LTE CRS according to an embodiment of the present disclosure.
  • the terminal determines to receive the NR PDCCH in the first receiving manner, and locates the NR PDCCH according to the first resource corresponding to the LTE CRS. Then, for the terminal, regardless of the existence of the LTE CRS, the RE that sends the LTE CRS is regarded as sending the NR PDCCH, and the NR PDCCH is detected on this basis.
  • the process of this method is relatively simple, but it may cause NR PDCCH loss.
  • the terminal when the second resource where the NR PDCCH is located is punctured according to the first resource corresponding to the LTE CRS, the terminal does not consider the existence of the LTE CRS, and regards all REs in the CORESET as It is used to send NR PDCCH and NR PDCCH DMRS, and to detect and receive NR PDCCH on this basis.
  • Fig. 5 is a schematic diagram of performing rate matching on the NR PDCCH according to the first resource corresponding to the LTE CRS according to an embodiment of the present disclosure.
  • the terminal determines to receive the NR PDCCH in the second receiving manner, and performs the NR PDCCH according to the first resource corresponding to the LTE CRS.
  • Rate matching then for the terminal, it can determine the existence of LTE CRS, and then perform rate matching on NR PDCCH according to the first resource corresponding to LTE CRS, such as detecting and receiving NR PDCCH on REs that do not have LTE CRS.
  • the processing complexity of this method is relatively high, and to a certain extent, it will increase the effective code rate of DCI (Downlink Control Information, downlink control information) in NR PDCCH, but this method can ensure the integrity of NR PDCCH to the greatest extent.
  • DCI Downlink Control Information, downlink control information
  • the terminal when the second resource where the NR PDCCH is located is punctured according to the first resource corresponding to the LTE CRS, the terminal determines the existence of the LTE CRS, and uses the CORESET to send the LTE CRS
  • the RE is determined not to be used to send NR PDCCH and NR PDCCH DMRS, and on this basis to detect and receive NR PDCCH.
  • the first receiving method and the second receiving method above are the receiving methods for receiving NR PDCCH for the terminal, and for the network side device, the sending method adopted by the network side device may not be limited to the terminal selection the receiving method.
  • the network side device can first map NR PDCCH on the RE in the CORESET, and then remove the RE corresponding to NR PDCCH on the RE occupied by the LTE CRS, and then send the NR PDCCH.
  • the network side device can also map the NR PDCCH on the RE in the CORESET, and then send the NR PDCCH.
  • the indication information is carried in at least one of the following: radio resource control signaling; broadcast information.
  • the network side device may send the indication information to the terminal in a unicast manner, for example, send the indication information to the terminal through RRC signaling; it may also send the indication information to the terminal in a broadcast manner, for example, carry the indication information through broadcast information Sending, wherein the broadcast information includes but not limited to system information, paging signaling and so on.
  • Fig. 10 is a schematic flowchart of another method for sending a physical downlink control channel according to an embodiment of the present disclosure.
  • the reception method for the terminal to receive the NR PDCCH includes:
  • step S1001 determine the support capability of the terminal for the receiving mode
  • step S1002 the reception mode is determined according to the support capability of the terminal for the reception mode.
  • the network-side device can determine the terminal's ability to support receiving methods, such as only supporting the first receiving method, only supporting the second receiving method, supporting both the first receiving method and the second receiving method, and then according to The support capability determines how the terminal receives the NR PDCCH, so as to ensure that the receiving method indicated to the terminal is compatible with the capability of the terminal.
  • the determining the receiving mode according to the terminal's support capability for the receiving mode includes:
  • the terminal In a case where the terminal supports the first receiving manner and the second receiving manner, determine that the default receiving manner is the receiving manner in the first receiving manner and the second receiving manner.
  • the network side device when the network side device determines that the terminal only supports the first receiving method, it may instruct the terminal to receive NR PDCCH according to the first method; Two ways to receive NR PDCCH.
  • the network side device determines that the terminal supports both the first receiving method and the second receiving method, it can choose to instruct the terminal to receive NR PDCCH according to the default method.
  • the default method can be the first receiving method or the second receiving method.
  • the receiving mode for example, the default mode may be determined based on the agreement. Accordingly, it can be ensured that the receiving mode selected by the terminal is compatible with its own capabilities.
  • the method also includes:
  • the terminal can also report information about its own support capability to the network side device, so that the network side device can perform appropriate operations according to the terminal's support capability. For example, the network side device can instruct the terminal to adopt the reception method according to the establishment of the terminal's indication of the receiving mode.
  • the terminal can autonomously determine the receiving method of receiving NR PDCCH according to its own ability to support the receiving method, or it can first report its own ability to support the receiving method to the network side device, and then based on the support capability of the network side device The indication sent determines how the NR PDCCH is received.
  • Fig. 11 is a schematic flow chart showing another method for sending a physical downlink control channel according to an embodiment of the present disclosure.
  • the reception method of sending the NR PDCCH includes:
  • step S1101 determine the aggregation level corresponding to the PDCCH candidate candidate in the NR PDCCH;
  • step S1102 the receiving mode is determined according to the aggregation level.
  • several CCEs can be aggregated into a PDCCH candidate, where the number of CCEs aggregated into a PDCCH candidate can be used as an aggregation level, for example including but not limited to 1, 2, 4, 8, 16, etc.
  • the network side device can determine the aggregation level corresponding to the PDCCH candidate in the NR PDCCH, and then determine the receiving mode according to the aggregation level and indicate it to the terminal, thereby ensuring that the receiving mode adopted by the terminal meets the aggregation level of the PDCCH candidate.
  • the terminal may determine the receiving mode of receiving the NR PDCCH autonomously according to the aggregation level, or may determine the receiving mode of receiving the NR PDCCH according to the indication information sent by the network side device based on the aggregation level.
  • the determining the receiving mode according to the aggregation level includes:
  • the network side device may instruct the terminal to receive NR PDCCH according to the first receiving method when the aggregation level is relatively large, for example, greater than the first preset threshold; and when the aggregation level is relatively small, for example, less than or equal to When the first preset threshold is reached, the terminal may be instructed to receive the NR PDCCH according to the second receiving manner.
  • the first preset threshold may be determined based on the agreement, or may be indicated by the network side device, for example, when the aggregation level includes 1, 2, 4, 8, 16, the first preset threshold may be 4, Then when the aggregation level is one of 1, 2, or 4, the NR PDCCH can be received in the second receiving manner, and when the aggregation level is 8 or 16, the NR PDCCH can be received in the first receiving manner.
  • the second receiving manner may be used to perform rate matching on the NR PDCCH according to the first resource corresponding to the LTE CRS, so as to ensure the integrity of the NR PDCCH as much as possible, and ensure that the NR PDCCH can be accurately detected.
  • the aggregation level is relatively high, the number of CCEs contained in the PDCCH candidate is large, and the number of CCEs is large, so the CEs corresponding to the NR PDCCH are relatively large.
  • Punching the second resource where the NR PDCCH is located according to the first resource corresponding to the LTE CRS will not cause the NR PDCCH to lack a large proportion of information, but it can effectively reduce the complexity of detection and shorten the detection time of NR. Time consumption of PDCCH. Therefore, in this case, the NR PDCCH can be received in the first receiving manner.
  • the first receiving method is used to receive NR PDCCH
  • the second receiving method is used to receive NR PDCCH, which is only one implementation among multiple embodiments of the present disclosure.
  • the logic for determining the receiving mode according to the aggregation level can also be determined as required. For example:
  • the determining the receiving mode according to the aggregation level includes: when the aggregation level is greater than a second preset threshold, determining the second receiving mode as the receiving mode; When the level is less than or equal to a second preset threshold, determine that the first receiving mode is the receiving mode.
  • the second threshold may be the same as or different from the above-mentioned first threshold.
  • the receiving mode according to the aggregation level it may be determined based on the agreement, or may be determined according to the instruction of the network side device.
  • the present disclosure also provides embodiments of a physical downlink control channel receiving device and a physical downlink control channel sending device.
  • Fig. 12 is a schematic block diagram of a device for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • the device for receiving the physical downlink control channel shown in this embodiment can be applied to a terminal, and the terminal includes but is not limited to a communication device such as a mobile phone, a tablet computer, a wearable device, a sensor, and an Internet of Things device.
  • the terminal can communicate with network-side equipment, and the network-side equipment includes but is not limited to network-side equipment in communication systems such as 4G, 5G, and 6G, such as base stations and core networks.
  • the device for receiving the physical downlink control channel may include
  • the processing module 1201 is configured to determine the reception mode of receiving the NR PDCCH in the case that the long-term evolution cell-specific reference signal LTE CRS conflicts with the new air interface physical downlink control channel NR PDCCH;
  • the receiving module 1202 is configured to receive the NR PDCCH according to the receiving manner.
  • the receiving method includes at least one of the following:
  • the first receiving method according to the first resource corresponding to the LTE CRS, the second resource where the NR PDCCH is located is punctured;
  • the second receiving manner performing rate matching on the NR PDCCH according to the first resource corresponding to the LTE CRS.
  • it is configured to receive indication information sent by a network side device; and determine the receiving manner according to the indication information.
  • the indication information is carried in at least one of the following: radio resource control signaling; broadcast information.
  • the processing module is configured to determine the reception mode according to the terminal's support capability for the reception mode.
  • the processing module is configured to determine that the first receiving method is the receiving method if the terminal only supports the first receiving method; In the case of the second receiving method, determine the second receiving method as the receiving method; if the terminal supports the first receiving method and the second receiving method, in the first receiving method mode and the second receiving mode determine that the default mode is the receiving mode.
  • the apparatus further includes: a sending module configured to report the information of the support capability to the network side device.
  • the processing module is configured to determine an aggregation level corresponding to a PDCCH candidate in the NR PDCCH; determine the receiving mode according to the aggregation level.
  • the processing module is configured to determine the first receiving mode as the receiving mode when the aggregation level is greater than a first preset threshold; When the threshold is preset, it is determined that the second receiving mode is the receiving mode.
  • the processing module is configured to determine that the second receiving mode is the receiving mode when the aggregation level is greater than a second preset threshold; when the aggregation level is less than or equal to the second When the threshold is preset, it is determined that the first receiving mode is the receiving mode.
  • Fig. 13 is a schematic block diagram of an apparatus for sending a physical downlink control channel according to an embodiment of the present disclosure.
  • the physical downlink control channel sending device shown in this embodiment can be applied to network-side equipment that can communicate with terminals, and the network-side equipment includes but is not limited to 4G base stations, 5G base stations, 6G base stations, and other communication systems
  • the base station, the terminal includes but is not limited to communication devices such as mobile phones, tablet computers, wearable devices, sensors, and Internet of Things devices.
  • the device for sending the physical downlink control channel may include:
  • the processing module 1301 is configured to determine the receiving mode for the terminal to receive the NR PDCCH when the long-term evolution cell-specific reference signal LTE CRS conflicts with the new air interface physical downlink control channel NR PDCCH;
  • the sending module 1302 is configured to send indication information to the terminal, where the indication information is used to indicate the receiving manner.
  • the receiving method includes at least one of the following:
  • the first receiving method according to the first resource corresponding to the LTE CRS, the second resource where the NR PDCCH is located is punctured;
  • the second receiving manner performing rate matching on the NR PDCCH according to the first resource corresponding to the LTE CRS.
  • the indication information is carried in at least one of the following: radio resource control signaling; broadcast information.
  • the processing module is configured to determine the terminal's ability to support the reception mode; and determine the reception mode according to the terminal's support capability to the reception mode.
  • the processing module is configured to determine that the first receiving method is the receiving method if the terminal only supports the first receiving method; In the case of the second receiving method, determine the second receiving method as the receiving method; if the terminal supports the first receiving method and the second receiving method, in the first receiving method mode and the second receiving mode determine that the default mode is the receiving mode.
  • the apparatus further includes: a receiving module configured to receive the information of the support capability reported by the terminal.
  • the processing module is configured to determine an aggregation level corresponding to a PDCCH candidate in the NR PDCCH; determine the receiving mode according to the aggregation level.
  • the processing module is configured to determine the first receiving mode as the receiving mode when the aggregation level is greater than a first preset threshold; When the threshold is preset, it is determined that the second receiving mode is the receiving mode.
  • the processing module is configured to determine that the second receiving mode is the receiving mode when the aggregation level is greater than a second preset threshold; when the aggregation level is less than or equal to the second When the threshold is preset, it is determined that the first receiving mode is the receiving mode.
  • the device embodiment since it basically corresponds to the method embodiment, for related parts, please refer to the part description of the method embodiment.
  • the device embodiments described above are only illustrative, and the modules described as separate components may or may not be physically separated, and the components shown as modules may or may not be physical modules, that is, they may be located in One place, or it can be distributed to multiple network modules. Part or all of the modules can be selected according to actual needs to achieve the purpose of the solution of this embodiment. It can be understood and implemented by those skilled in the art without creative effort.
  • Embodiments of the present disclosure also propose a communication device, including: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, the physical downlink control described in any of the above embodiments is implemented channel receive method.
  • Embodiments of the present disclosure also propose a communication device, including: a processor; a memory for storing a computer program; wherein, when the computer program is executed by the processor, the physical downlink control described in any of the above embodiments is implemented Channel send method.
  • Embodiments of the present disclosure also provide a computer-readable storage medium for storing a computer program.
  • the computer program is executed by a processor, the steps in the method for receiving a physical downlink control channel described in any of the above-mentioned embodiments are implemented.
  • Embodiments of the present disclosure also propose a computer-readable storage medium for storing a computer program, and when the computer program is executed by a processor, the steps in the physical downlink control channel transmission method described in any of the above-mentioned embodiments are implemented .
  • FIG. 14 is a schematic block diagram of an apparatus 1400 for sending a physical downlink control channel according to an embodiment of the present disclosure.
  • Apparatus 1400 may be provided as a base station.
  • the device 1400 includes a processing component 1422 , a wireless transmitting/receiving component 1424 , an antenna component 1426 , and a signal processing part specific to the wireless interface.
  • the processing component 1422 may further include one or more processors.
  • One of the processors in the processing component 1422 may be configured to implement the method for sending a physical downlink control channel described in any of the foregoing embodiments.
  • Fig. 15 is a schematic block diagram of an apparatus 1500 for receiving a physical downlink control channel according to an embodiment of the present disclosure.
  • the apparatus 1500 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • device 1500 may include one or more of the following components: processing component 1502, memory 1504, power supply component 1506, multimedia component 1508, audio component 1510, input/output (I/O) interface 1512, sensor component 1514 and Communication component 1516 .
  • the processing component 1502 generally controls the overall operations of the device 1500, such as those associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 1502 may include one or more processors 1520 to execute instructions to complete all or part of the steps of the above-mentioned method for receiving a physical downlink control channel.
  • processing component 1502 may include one or more modules that facilitate interaction between processing component 1502 and other components.
  • processing component 1502 may include a multimedia module to facilitate interaction between multimedia component 1508 and processing component 1502 .
  • the memory 1504 is configured to store various types of data to support operations at the device 1500 . Examples of such data include instructions for any application or method operating on device 1500, contact data, phonebook data, messages, pictures, videos, and the like.
  • the memory 1504 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic or Optical Disk Magnetic Disk
  • the power supply component 1506 provides power to various components of the device 1500 .
  • Power components 1506 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for device 1500.
  • the multimedia component 1508 includes a screen that provides an output interface between the device 1500 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user.
  • the touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may not only sense a boundary of a touch or swipe action, but also detect duration and pressure associated with the touch or swipe action.
  • the multimedia component 1508 includes a front camera and/or a rear camera. When the device 1500 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capability.
  • the audio component 1510 is configured to output and/or input audio signals.
  • the audio component 1510 includes a microphone (MIC), which is configured to receive external audio signals when the device 1500 is in operation modes, such as call mode, recording mode and voice recognition mode. Received audio signals may be further stored in memory 1504 or sent via communication component 1516 .
  • the audio component 1510 also includes a speaker for outputting audio signals.
  • the I/O interface 1512 provides an interface between the processing component 1502 and a peripheral interface module, which may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: a home button, volume buttons, start button, and lock button.
  • Sensor assembly 1514 includes one or more sensors for providing status assessments of various aspects of device 1500 .
  • the sensor component 1514 can detect the open/closed state of the device 1500, the relative positioning of components, such as the display and keypad of the device 1500, and the sensor component 1514 can also detect a change in the position of the device 1500 or a component of the device 1500 , the presence or absence of user contact with the device 1500 , the device 1500 orientation or acceleration/deceleration and the temperature change of the device 1500 .
  • Sensor assembly 1514 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact.
  • Sensor assembly 1514 may also include optical sensors, such as CMOS or CCD image sensors, for use in imaging applications.
  • the sensor component 1514 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.
  • the communication component 1516 is configured to facilitate wired or wireless communication between the apparatus 1500 and other devices.
  • the device 1500 can access wireless networks based on communication standards, such as WiFi, 2G, 3G, 4G LTE, 5G NR or combinations thereof.
  • the communication component 1516 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 1516 also includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, Infrared Data Association (IrDA) technology, Ultra Wide Band (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID Radio Frequency Identification
  • IrDA Infrared Data Association
  • UWB Ultra Wide Band
  • Bluetooth Bluetooth
  • apparatus 1500 may be programmed by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable Realized by a gate array (FPGA), a controller, a microcontroller, a microprocessor or other electronic components, it is used to execute the method for receiving the physical downlink control channel above.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable Realized by a gate array
  • controller a controller
  • microcontroller a microcontroller
  • microprocessor or other electronic components it is used to execute the method for receiving the physical downlink control channel above.
  • a non-transitory computer-readable storage medium including instructions such as a memory 1504 including instructions, the instructions can be executed by the processor 1520 of the device 1500 to complete the above method for receiving the physical downlink control channel .
  • the non-transitory computer readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, and the like.

Abstract

本公开涉及物理下行控制信道接收、发送方法和装置，其中，物理下行控制信道接收方法，包括：确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式；根据所述接收方式接收所述NR PDCCH。根据本公开，终端可以确定在LTE CRS与NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式，进而根据所述接收方式接收所述NR PDCCH。据此，终端可以根据需要确定合适的接收方式，在LTE CRS与NR PDCCH冲突的情况下接收所述NR PDCCH，相对于相关技术中只能以固定的接收方式接收NR PDCCH，有利于确保接收方式适应实际情况。

Description

物理下行控制信道接收、发送方法和装置 技术领域
本公开涉及通信技术领域，具体而言，涉及物理下行控制信道接收方法、物理下行控制信道发送方法、物理下行控制信道接收装置、物理下行控制信道发送装置、通信装置和计算机可读存储介质。
背景技术
目前，LTE(Long Term Evolution，长期演进)系统与NR(New Radio，新空口)系统可以在相同的频谱共存。LTE系统需要持续发送CRS(Cell-specific Reference Signal，小区传输参考信号)，这对NR系统会造成强烈的干扰。
在相关技术中，在LTE CRS对应的RE(Resource Element，资源元素)与NR PDCCH(Physical Downlink Control Channel，物理下行控制信道)对应的RE冲突时，终端在冲突的RE上就不期待接收NR PDCCH。
发明内容
有鉴于此，本公开的实施例提出了物理下行控制信道接收方法、物理下行控制信道发送方法、物理下行控制信道接收装置、物理下行控制信道发送装置、通信装置和计算机可读存储介质，以解决相关技术中的技术问题。
根据本公开实施例的第一方面，提出一种物理下行控制信道接收方法，由终端执行，所述方法包括：确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式；根据所述接收方式接收所述NR PDCCH。
根据本公开实施例的第二方面，提出一种物理下行控制信道发送方法，由网络侧设备执行，所述方法包括：确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，终端接收所述NR PDCCH的接收方式；向所述终端发送指示信息，其中，所述指示信息用于指示所述接收方式。
根据本公开实施例的第三方面，提出一种物理下行控制信道接收装置，包括：处理模块，被配置为确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控 制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式；接收模块，被配置为根据所述接收方式接收所述NR PDCCH。
根据本公开实施例的第四方面，提出一种物理下行控制信道发送装置，包括：处理模块，被配置为确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，终端接收所述NR PDCCH的接收方式；发送模块，被配置为向所述终端发送指示信息，其中，所述指示信息用于指示所述接收方式。
根据本公开实施例的第五方面，提出一种通信装置，包括：处理器；用于存储计算机程序的存储器；其中，当所述计算机程序被处理器执行时，实现上述物理下行控制信道接收方法。
根据本公开实施例的第六方面，提出一种通信装置，包括：处理器；用于存储计算机程序的存储器；其中，当所述计算机程序被处理器执行时，实现上述物理下行控制信道发送方法。
根据本公开实施例的第七方面，提出一种计算机可读存储介质，用于存储计算机程序，当所述计算机程序被处理器执行时，实现上述物理下行控制信道接收方法中的步骤。
根据本公开实施例的第八方面，提出一种计算机可读存储介质，用于存储计算机程序，当所述计算机程序被处理器执行时，实现上述物理下行控制信道发送方法中的步骤。
根据本公开的实施例，终端可以确定在LTE CRS与NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式，进而根据所述接收方式接收所述NR PDCCH。据此，终端可以根据需要确定合适的接收方式，在LTE CRS与NR PDCCH冲突的情况下接收所述NR PDCCH，相对于相关技术中只能以固定的接收方式接收NR PDCCH，有利于确保接收方式适应实际情况。
附图说明
为了更清楚地说明本公开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公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是根据本公开的实施例示出的一种物理下行控制信道接收方法的示意流程图。
图2是根据本公开的实施例示出的一种LTE CRS分别示意图。
图3是根据本公开的实施例示出的一种NR PDCCH与LTE CRS冲突的示意图。
图4是根据本公开的实施例示出的根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔的示意图。
图5是根据本公开的实施例示出的根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配的示意图。
图6是根据本公开的实施例示出的另一种物理下行控制信道接收方法的示意流程图。
图7是根据本公开的实施例示出的又一种物理下行控制信道接收方法的示意流程图。
图8是根据本公开的实施例示出的又一种物理下行控制信道接收方法的示意流程图。
图9是根据本公开的实施例示出的一种物理下行控制信道发送方法的示意流程图。
图10是根据本公开的实施例示出的另一种物理下行控制信道发送方法的示意流程图。
图11是根据本公开的实施例示出的又一种物理下行控制信道发送方法的示意流程图。
图12是根据本公开的实施例示出的一种物理下行控制信道接收装置的示意框图。
图13是根据本公开的实施例示出的一种物理下行控制信道发送装置的示意框图。
图14是根据本公开的实施例示出的一种用于物理下行控制信道发送的装置的示意框图。
图15是根据本公开的实施例示出的一种用于物理下行控制信道接收的装置的 示意框图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”可以被解释成为“在……时”或“当……时”或“响应于确定”。
出于简洁和便于理解的目的，本文在表征大小关系时，所使用的术语为“大于”或“小于”、“高于”或“低于”。但对于本领域技术人员来说，可以理解：术语“大于”也涵盖了“大于等于”的含义，“小于”也涵盖了“小于等于”的含义；术语“高于”涵盖了“高于等于”的含义，“低于”也涵盖了“低于等于”的含义。
图1是根据本公开的实施例示出的一种物理下行控制信道接收方法的示意流程图。本实施例所示的物理下行控制信道接收方法可以由终端执行，所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等通信装置。所述终端可以与网络侧设备通信，所述网络侧设备包括但不限于4G、5G、6G等通信系统中的网络侧设备，例如基站、核心网等。
如图1所示，所述物理下行控制信道接收方法可以包括以下步骤：
在步骤S101中，确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式；
在步骤S102中，根据所述接收方式接收所述NR PDCCH。
图2是根据本公开的实施例示出的一种LTE CRS分别示意图。
在一个实施例中，以LTE小区的标识(Cell ID)等于0，LTE CRS支持4个端口为例，分别为天线端口0、天线端口1、天线端口2和天线端口3。每个天线端口对应的LTE CRS分别占用不同的资源，4个天线端口对应的LTE CRS占用的资源叠加在一起作为第一资源。
如图2所示，在一个RB(Resource Block，资源块)中，时域上包含14个符号(例如正交频分复用OFDM符号)，频域上包含12个RE(Resource Element，资源元素)。例如在一个符号上，RE从下到上的编号为RE#0至RE#11，如图2所示，LTE CRS占用的资源包括第1个、第2个、第5个、第8个、第9个和第12个符号上，编号为RE#0、RE#3、RE#6、RE#9的RE。
需要说明的是，LTE CRS可以由LTE网络侧设备发送，但是NR网络侧设备也可以确定LTE CRS占用的资源，例如可以通过与LTE网络侧设备通信确定，例如也可以是基于协议约定确定的。另外，终端也可以确定LTE CRS占用的资源，例如终端可以基于协议约定确定LTE CRS占用的资源。
图3是根据本公开的实施例示出的一种NR PDCCH与LTE CRS冲突的示意图。如图3所示，例如控制资源集CORESET的持续长度duration为3个时域符号，例如为RB中的前3个符号，那么对于CORESET中用于携带NR PDCCH的RE，在第1个、第2个符号上，编号为RE#0、RE#3、RE#6的RE携带的NR PDCCH与LTE CRS冲突，那么在这些冲突的RE上，终端就不期待接收NR PDCCH了，但是在CORESET的其他RE上，仍然需要接收NR PDCCH。
其中，例如图3所示，除了LTE CRS除了会与NR PDCCH冲突，与NR PDCCH DMRS(Demodulation Reference Signal，解调参考信号)也可以产生冲突，例如第1个、第2个符号上编号为RE#9的RE携带NR PDCCH DMRS与LTE CRS冲突，在这些冲突的RE上，终端也不会期待接收NR PDCCH DMRS。
在相关技术中，这种情况下终端接收NR PDCCH的接收方式是固定的，并不是终端或者网络侧设备根据需要确定的，这就导致接收方式难以适应实际情况。
根据本公开的实施例，终端可以确定在LTE CRS与NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式，进而根据所述接收方式接收所述NR PDCCH。据此，终端可以根据需要确定合适的接收方式，在LTE CRS与NR PDCCH冲突的情况下接 收所述NR PDCCH，相对于相关技术中只能以固定的接收方式接收NR PDCCH，有利于确保接收方式适应实际情况。
在一个实施例中，所述接收方式包括以下至少之一：
第一接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔；
第二接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配rate matching。
终端所采用的接收方式例如包括两种，一种是根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔，简称第一接收方式；另一种是根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配配RM，简称第二接收方式。
图4是根据本公开的实施例示出的根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔的示意图。
例如在图3所示实施例的基础上，在NR PDCCH与LTE CRS冲突的情况下，终端确定采用第一接收方式接收NR PDCCH，根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔，那么对于终端而言，可以不考虑LTE CRS的存在，将发送LTE CRS的RE视为发送NR PDCCH，并在此基础上检测NR PDCCH。这种方式处理过程相对简单，但是可能造成NR PDCCH丢失。
如图4所示，对于终端而言，在根据LTE CRS对应的第一资源对NR PDCCH所在的第二资源进行打孔的情况下，终端不考虑LTE CRS的存在，将CORESET中的RE都视为用于发送NR PDCCH和NR PDCCH DMRS，并在此基础上检测、接收NR PDCCH。
图5是根据本公开的实施例示出的根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配的示意图。
例如在图3所示实施例的基础上，在NR PDCCH与LTE CRS冲突的情况下，终端确定采用第二接收方式接收NR PDCCH，根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配，那么对于终端而言，可以确定LTE CRS的存在，进而根据LTE CRS对应的第一资源对NR PDCCH进行速率匹配，例如在不存在LTE CRS的RE上检测、接收NR PDCCH。这种方式处理复杂度相对较高，并且一定程度上会 提高NR PDCCH中DCI(Downlink Control Information，下行控制信息)的有效码率，但是这种方式可以最大程度上确保NR PDCCH的完整性。
如图5所示，对于终端而言，在根据LTE CRS对应的第一资源对NR PDCCH所在的第二资源进行打孔的情况下，终端确定LTE CRS的存在，将CORESET中用于发送LTE CRS的RE判定为不用于发送NR PDCCH和NR PDCCH DMRS，并在此基础上检测、接收NR PDCCH。
需要说明的是，以上第一接收方式和第二接收方式，是对于终端而言接收NR PDCCH的接收方式，而对于网络侧设备而言，网络侧设备采用的发送方式可以不受限于终端选择的接收方式。
例如网络侧设备可以先在CORESET内的RE上映射NR PDCCH，然后在LTE CRS占用的RE上将NR PDCCH对应的RE去掉，进而再发送NR PDCCH。例如网络侧设备也可以在CORESET内的RE上映射NR PDCCH，然后就发送NR PDCCH。
图6是根据本公开的实施例示出的另一种物理下行控制信道接收方法的示意流程图。如图6所示，所述确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式包括：
在步骤S601中，接收网络侧设备发送的指示信息；
在步骤S602中，根据所述指示信息确定所述接收方式。
在一个实施例中，网络侧设备可以通过发送指示信息，指示终端采用的接收方式，例如在接收方式包括上述第一接收方式和第二接收方式的情况下，网络侧设备可以通过1个比特向终端指示所述接收方式。如表1所示：
方式配置信息 NR PDCCH接收方式
0 第一接收方式
1 第二接收方式
表1
例如终端可以存储如表1所示的指示信息与接收方式的对应关系，指示信息为0用于指示第一接收方式，指示信息为1用于指示第二接收方式。
据此，网络侧设备可以根据实际情况确定终端需要采用的接收方式，进而通过指示信息向终端指示相应的接收方式，有利于确保终端采用的接收方式适应实际情况。
在一个实施例中，所述指示信息携带在以下至少之一中：无线资源控制(Radio  Resource Control，RRC)信令；广播信息。
在一个实施例中，网络侧设备可以以单播的方式向终端发送指示信息，例如通过RRC信令携带指示发送给终端；也可以通过广播的方式向终端发送指示信息，例如通过广播信息携带指示进行发送，其中，广播信息包括但不限于系统信息、寻呼信令等。
图7是根据本公开的实施例示出的又一种物理下行控制信道接收方法的示意流程图。如图7所示，所述确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式包括：
在步骤S701中，根据所述终端对所述接收方式的支持能力确定所述接收方式。
在一个实施例中，终端可以确定自身对接收方式的支持能力，例如仅支持第一接收方式、仅支持第二接收方式、既支持第一接收方式又支持第二接收方式，进而可以根据支持能力确定接收NR PDCCH的接收方式，从而确保选择的接收方式与自身的能力相适应。
在一个实施例中，所述根据所述终端对所述接收方式的支持能力确定所述接收方式包括：
在所述终端仅支持所述第一接收方式的情况下，确定所述第一接收方式为所述接收方式；
在所述终端仅支持所述第二接收方式的情况下，确定所述第二接收方式为所述接收方式；
在所述终端支持所述第一接收方式和所述第二接收方式的情况下，在所述第一接收方式和所述第二接收方式确定默认方式为所述接收方式。
例如终端在确定自身仅支持第一接收方式的情况下，可以选择根据第一方式接收NR PDCCH；例如终端在确定自身仅支持第二接收方式的情况下，可以选择根据第二方式接收NR PDCCH。而在终端确定自身既支持第一接收方式，又支持第二接收方式的情况下，则可以选择根据默认方式接收NR PDCCH，默认方式可以是第一接收方式，也可以是第二接收方式，例如可以基于协议约定确定默认方式。据此，可以确保终端选择的接收方式与自身的能力相适应。
在一个实施例中，所述方法还包括：
向网络侧设备上报所述支持能力的信息。
终端还可以将自身支持能力的信息上报至网络侧设备，以便网络侧设备根据终端的支持能力进行适当的操作，例如网络侧设备可以根据终端对于接收方式的指示成立指示终端所需采用接收方式。
需要说明的是，终端可以自主地根据自身对接收方式的支持能力确定接收NR PDCCH的接收方式，也可以先将自身对接收方式的支持能力上报给网络侧设备，然后根据网络侧设备基于支持能力发送的指示确定接收NR PDCCH的接收方式。
图8是根据本公开的实施例示出的又一种物理下行控制信道接收方法的示意流程图。如图8所示，所述确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式包括：
在步骤S801中，确定所述NR PDCCH中PDCCH候选candidate对应的聚合等级；
在步骤S802中，根据所述聚合等级确定所述接收方式。
在一个实施例中，若干个CCE(control channel element，控制信道单元)可以聚合成PDCCH candidate，其中，聚合成PDCCH candidate的CCE的数量可以作为聚合等级(Aggregation Level，AL)，例如包括但不限于1、2、4、8、16等。终端可以确定NR PDCCH中PDCCH candidate对应的聚合等级，进而根据聚合等级确定所述接收方式，据此，可以确保采用的接收方式满足PDCCH candidate的聚合等级。
需要说明的是，终端可以自主地根据所述聚合等级确定接收NR PDCCH的接收方式，也可以根据网络侧设备基于所述集合等级发送的指示信息确定接收NR PDCCH的接收方式。
在一个实施例中，所述根据所述聚合等级确定所述接收方式包括：
在所述聚合等级大于第一预设门限时，确定所述第一接收方式为所述接收方式；
在所述聚合等级小于或等于第一预设门限时，确定所述第二接收方式为所述接收方式。
在一个实施例中，终端可以在聚合等级相对较大时，例如大于第一预设门限时，根据第一接收方式接收NR PDCCH；而在聚合等级相对较小时，例如小于或等于第一 预设门限时，可以根据第二接收方式接收NR PDCCH。
其中，第一预设门限可以根据是基于协议约定确定的，也可以由网络侧设备指示的，例如在聚合等级包括1、2、4、8、16时，第一预设门限可以为4，那么当聚合等级为1、2、4之一时，可以采用第二接收方式接收NR PDCCH，在聚合等级为8或16时，可以采用第一接收方式接收NR PDCCH。
由于在聚合等级相对较低时，PDCCH candidate包含的CCE的数量较少，CCE的数量较少，那么NR PDCCH对应的CE也就相对较少，在这种情况下，如果采用第一接收方式，根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔，会导致NR PDCCH缺失较大比例的信息，难以准确检测出NR PDCCH。因此，可以采用第二接收方式，根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配，以尽量保证NR PDCCH的完整性，确保可以准确检测出NR PDCCH。
而在聚合等级相对较高时，PDCCH candidate包含的CCE的数量较多，CCE的数量较多，那么NR PDCCH对应的CE也就相对较多，在这种情况下，即使采用第一接收方式，根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔，也不会导致NR PDCCH缺失较大比例的信息，但是却可以有效降低检测的复杂度，缩短检测NR PDCCH的耗时。因此，在这种情况下可以采用第一接收方式接收NR PDCCH。
需要说明的是，在聚合等级相对较高时采用第一接收方式接收NR PDCCH，在聚合等级相对较低时，采用第二接收方式接收NR PDCCH，只是本公开多个实施例中的一种实施例，也可以根据需要确定根据聚合等级确定接收方式的逻辑。例如：
在一个实施例中，所述根据所述聚合等级确定所述接收方式包括：在所述聚合等级大于第二预设门限时，确定所述第二接收方式为所述接收方式；在所述聚合等级小于或等于第二预设门限时，确定所述第一接收方式为所述接收方式。其中，第二门限阈值可以与上述第一门限阈值相同或不同。
关于上述两种根据聚合等级确定接收方式的逻辑，可以基于协议约定确定，也可以根据网络侧设备指示确定。
图9是根据本公开的实施例示出的一种物理下行控制信道发送方法的示意流程图。本实施例所示的物理下行控制信道发送方法可以由网络侧设备执行，所述网络侧设备可以与终端通信，所述网络侧设备包括但不限于4G基站、5G基站、6G基站等 通信系统中的基站，所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等通信装置。
如图9所示，所述物理下行控制信道发送方法可以包括以下步骤：
在步骤S901中，确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，终端接收所述NR PDCCH的接收方式；
在步骤S902中，向所述终端发送指示信息，其中，所述指示信息用于指示所述接收方式。
根据本公开的实施例，网络侧设备可以确定在LTE CRS与NR PDCCH冲突的情况下，终端接收所述NR PDCCH的接收方式，进而根据所述接收方式接收所述NR PDCCH。据此，网络侧设备可以根据需要确定合适的接收方式并指示给终端，使得终端根据所指示的接收方式在LTE CRS与NR PDCCH冲突的情况下接收所述NR PDCCH，相对于相关技术中只能以固定的接收方式接收NR PDCCH，有利于确保接收方式适应实际情况。
在一个实施例中，所述接收方式包括以下至少之一：
第一接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔；
第二接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配rate matching。
终端所采用的接收方式例如包括两种，一种是根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔，简称第一接收方式；另一种是根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配配RM，简称第二接收方式。
图4是根据本公开的实施例示出的根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔的示意图。
例如在图3所示实施例的基础上，在NR PDCCH与LTE CRS冲突的情况下，终端确定采用第一接收方式接收NR PDCCH，根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔，那么对于终端而言，可以不考虑LTE CRS的存在，将发送LTE CRS的RE视为发送NR PDCCH，并在此基础上检测NR PDCCH。 这种方式处理过程相对简单，但是可能造成NR PDCCH丢失。
如图4所示，对于终端而言，在根据LTE CRS对应的第一资源对NR PDCCH所在的第二资源进行打孔的情况下，终端不考虑LTE CRS的存在，将CORESET中的RE都视为用于发送NR PDCCH和NR PDCCH DMRS，并在此基础上检测、接收NR PDCCH。
图5是根据本公开的实施例示出的根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配的示意图。
例如在图3所示实施例的基础上，在NR PDCCH与LTE CRS冲突的情况下，终端确定采用第二接收方式接收NR PDCCH，根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配，那么对于终端而言，可以确定LTE CRS的存在，进而根据LTE CRS对应的第一资源对NR PDCCH进行速率匹配，例如在不存在LTE CRS的RE上检测、接收NR PDCCH。这种方式处理复杂度相对较高，并且一定程度上会提高NR PDCCH中DCI(Downlink Control Information，下行控制信息)的有效码率，但是这种方式可以最大程度上确保NR PDCCH的完整性。
如图5所示，对于终端而言，在根据LTE CRS对应的第一资源对NR PDCCH所在的第二资源进行打孔的情况下，终端确定LTE CRS的存在，将CORESET中用于发送LTE CRS的RE判定为不用于发送NR PDCCH和NR PDCCH DMRS，并在此基础上检测、接收NR PDCCH。
需要说明的是，以上第一接收方式和第二接收方式，是对于终端而言接收NR PDCCH的接收方式，而对于网络侧设备而言，网络侧设备采用的发送方式可以不受限于终端选择的接收方式。
例如网络侧设备可以先在CORESET内的RE上映射NR PDCCH，然后在LTE CRS占用的RE上将NR PDCCH对应的RE去掉，进而再发送NR PDCCH。例如网络侧设备也可以在CORESET内的RE上映射NR PDCCH，然后就发送NR PDCCH。
在一个实施例中，所述指示信息携带在以下至少之一中：无线资源控制信令；广播信息。
在一个实施例中，网络侧设备可以以单播的方式向终端发送指示信息，例如通过RRC信令携带指示发送给终端；也可以通过广播的方式向终端发送指示信息，例如通过广播信息携带指示进行发送，其中，广播信息包括但不限于系统信息、寻呼信令 等。
图10是根据本公开的实施例示出的另一种物理下行控制信道发送方法的示意流程图。如图10所示，所述确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，终端接收所述NR PDCCH的接收方式包括：
在步骤S1001中，确定所述终端对所述接收方式的支持能力；
在步骤S1002中，根据所述终端对所述接收方式的支持能力确定所述接收方式。
在一个实施例中，网络侧设备可以确定终端对接收方式的支持能力，例如仅支持第一接收方式、仅支持第二接收方式、既支持第一接收方式又支持第二接收方式，进而可以根据支持能力确定终端接收NR PDCCH的接收方式，从而确保指示给终端的接收方式与终端的能力相适应。
在一个实施例中，所述根据所述终端对所述接收方式的支持能力确定所述接收方式包括：
在所述终端仅支持所述第一接收方式的情况下，确定所述第一接收方式为所述接收方式；
在所述终端仅支持所述第二接收方式的情况下，确定所述第二接收方式为所述接收方式；
在所述终端支持所述第一接收方式和所述第二接收方式的情况下，在所述第一接收方式和所述第二接收方式确定默认方式为所述接收方式。
例如网络侧设备在确定终端仅支持第一接收方式的情况下，可以指示终端根据第一方式接收NR PDCCH；例如网络侧设备在确定终端仅支持第二接收方式的情况下，可以指示终端根据第二方式接收NR PDCCH。而在网络侧设备在确定终端既支持第一接收方式，又支持第二接收方式的情况下，则可以选择指示终端根据默认方式接收NR PDCCH，默认方式可以是第一接收方式，也可以是第二接收方式，例如可以基于协议约定确定默认方式。据此，可以确保终端选择的接收方式与自身的能力相适应。
在一个实施例中，所述方法还包括：
接收所述终端上报的所述支持能力的信息。
终端还可以将自身支持能力的信息上报至网络侧设备，以便网络侧设备根据终端的支持能力进行适当的操作，例如网络侧设备可以根据终端对于接收方式的指示成立指示终端所需采用接收方式。
需要说明的是，终端可以自主地根据自身对接收方式的支持能力确定接收NR PDCCH的接收方式，也可以先将自身对接收方式的支持能力上报给网络侧设备，然后根据网络侧设备基于支持能力发送的指示确定接收NR PDCCH的接收方式。
图11是根据本公开的实施例示出的又一种物理下行控制信道发送方法的示意流程图。如图11所示，所述确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，发送所述NR PDCCH的接收方式包括：
在步骤S1101中，确定所述NR PDCCH中PDCCH候选candidate对应的聚合等级；
在步骤S1102中，根据所述聚合等级确定所述接收方式。
在一个实施例中，若干个CCE可以聚合成PDCCH candidate，其中，聚合成PDCCH candidate的CCE的数量可以作为聚合等级，例如包括但不限于1、2、4、8、16等。网络侧设备可以确定NR PDCCH中PDCCH candidate对应的聚合等级，进而根据聚合等级确定所述接收方式并指示给终端，据此，可以确保终端采用的接收方式满足PDCCH candidate的聚合等级。
需要说明的是，终端可以自主地根据所述聚合等级确定接收NR PDCCH的接收方式，也可以根据网络侧设备基于所述集合等级发送的指示信息确定接收NR PDCCH的接收方式。
在一个实施例中，所述根据所述聚合等级确定所述接收方式包括：
在所述聚合等级大于第一预设门限时，确定所述第一接收方式为所述接收方式；
在所述聚合等级小于或等于第一预设门限时，确定所述第二接收方式为所述接收方式。
在一个实施例中，网络侧设备可以在聚合等级相对较大时，例如大于第一预设门限时，指示终端根据第一接收方式接收NR PDCCH；而在聚合等级相对较小时，例如小于或等于第一预设门限时，可以指示终端根据第二接收方式接收NR PDCCH。
其中，第一预设门限可以根据是基于协议约定确定的，也可以由网络侧设备指示的，例如在聚合等级包括1、2、4、8、16时，第一预设门限可以为4，那么当聚合等级为1、2、4之一时，可以采用第二接收方式接收NR PDCCH，在聚合等级为8或16时，可以采用第一接收方式接收NR PDCCH。
由于在聚合等级相对较低时，PDCCH candidate包含的CCE的数量较少，CCE的数量较少，那么NR PDCCH对应的CE也就相对较少，在这种情况下，如果采用第一接收方式，根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔，会导致NR PDCCH缺失较大比例的信息，难以准确检测出NR PDCCH。因此，可以采用第二接收方式，根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配，以尽量保证NR PDCCH的完整性，确保可以准确检测出NR PDCCH。
而在聚合等级相对较高时，PDCCH candidate包含的CCE的数量较多，CCE的数量较多，那么NR PDCCH对应的CE也就相对较多，在这种情况下，即使采用第一接收方式，根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔，也不会导致NR PDCCH缺失较大比例的信息，但是却可以有效降低检测的复杂度，缩短检测NR PDCCH的耗时。因此，在这种情况下可以采用第一接收方式接收NR PDCCH。
需要说明的是，在聚合等级相对较高时采用第一接收方式接收NR PDCCH，在聚合等级相对较低时，采用第二接收方式接收NR PDCCH，只是本公开多个实施例中的一种实施例，也可以根据需要确定根据聚合等级确定接收方式的逻辑。例如：
在一个实施例中，所述根据所述聚合等级确定所述接收方式包括：在所述聚合等级大于第二预设门限时，确定所述第二接收方式为所述接收方式；在所述聚合等级小于或等于第二预设门限时，确定所述第一接收方式为所述接收方式。其中，第二门限阈值可以与上述第一门限阈值相同或不同。
关于上述两种根据聚合等级确定接收方式的逻辑，可以基于协议约定确定，也可以根据网络侧设备指示确定。
与前述的物理下行控制信道接收方法和物理下行控制信道发送方法的实施例相对应，本公开还提供了物理下行控制信道接收装置和物理下行控制信道发送装置的实施例。
图12是根据本公开的实施例示出的一种物理下行控制信道接收装置的示意框 图。本实施例所示的物理下行控制信道接收装置可以适用于终端，所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等通信装置。所述终端可以与网络侧设备通信，所述网络侧设备包括但不限于4G、5G、6G等通信系统中的网络侧设备，例如基站、核心网等。
如图12所示，所述物理下行控制信道接收装置可以包括
处理模块1201，被配置为确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式；
接收模块1202，被配置为根据所述接收方式接收所述NR PDCCH。
在一个实施例中，所述接收方式包括以下至少之一：
第一接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔；
第二接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配rate matching。
在一个实施例中，被配置为接收网络侧设备发送的指示信息；根据所述指示信息确定所述接收方式。
在一个实施例中，所述指示信息携带在以下至少之一中：无线资源控制信令；广播信息。
在一个实施例中，所述处理模块，被配置为根据所述终端对所述接收方式的支持能力确定所述接收方式。
在一个实施例中，所述处理模块，被配置为在所述终端仅支持所述第一接收方式的情况下，确定所述第一接收方式为所述接收方式；在所述终端仅支持所述第二接收方式的情况下，确定所述第二接收方式为所述接收方式；在所述终端支持所述第一接收方式和所述第二接收方式的情况下，在所述第一接收方式和所述第二接收方式确定默认方式为所述接收方式。
在一个实施例中，所述装置还包括：发送模块，被配置为向网络侧设备上报所述支持能力的信息。
在一个实施例中，所述处理模块，被配置为确定所述NR PDCCH中PDCCH候选candidate对应的聚合等级；根据所述聚合等级确定所述接收方式。
在一个实施例中，所述处理模块，被配置为在所述聚合等级大于第一预设门限时，确定所述第一接收方式为所述接收方式；在所述聚合等级小于或等于第一预设门限时，确定所述第二接收方式为所述接收方式。
在一个实施例中，所述处理模块，被配置为在所述聚合等级大于第二预设门限时，确定所述第二接收方式为所述接收方式；在所述聚合等级小于或等于第二预设门限时，确定所述第一接收方式为所述接收方式。
图13是根据本公开的实施例示出的一种物理下行控制信道发送装置的示意框图。本实施例所示的物理下行控制信道发送装置可以适用于网络侧设备，所述网络侧设备可以与终端通信，所述网络侧设备包括但不限于4G基站、5G基站、6G基站等通信系统中的基站，所述终端包括但不限于手机、平板电脑、可穿戴设备、传感器、物联网设备等通信装置。
如图13所示，所述物理下行控制信道发送装置可以包括：
处理模块1301，被配置为确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，终端接收所述NR PDCCH的接收方式；
发送模块1302，被配置为向所述终端发送指示信息，其中，所述指示信息用于指示所述接收方式。
在一个实施例中，所述接收方式包括以下至少之一：
第一接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔；
第二接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配rate matching。
在一个实施例中，所述指示信息携带在以下至少之一中：无线资源控制信令；广播信息。
在一个实施例中，所述处理模块，被配置为确定所述终端对所述接收方式的支持能力；根据所述终端对所述接收方式的支持能力确定所述接收方式。
在一个实施例中，所述处理模块，被配置为在所述终端仅支持所述第一接收方式的情况下，确定所述第一接收方式为所述接收方式；在所述终端仅支持所述第二接 收方式的情况下，确定所述第二接收方式为所述接收方式；在所述终端支持所述第一接收方式和所述第二接收方式的情况下，在所述第一接收方式和所述第二接收方式确定默认方式为所述接收方式。
在一个实施例中，所述装置还包括：接收模块，被配置为接收所述终端上报的所述支持能力的信息。
在一个实施例中，所述处理模块，被配置为确定所述NR PDCCH中PDCCH候选candidate对应的聚合等级；根据所述聚合等级确定所述接收方式。
在一个实施例中，所述处理模块，被配置为在所述聚合等级大于第一预设门限时，确定所述第一接收方式为所述接收方式；在所述聚合等级小于或等于第一预设门限时，确定所述第二接收方式为所述接收方式。
在一个实施例中，所述处理模块，被配置为在所述聚合等级大于第二预设门限时，确定所述第二接收方式为所述接收方式；在所述聚合等级小于或等于第二预设门限时，确定所述第一接收方式为所述接收方式。
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相关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。
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的模块可以是或者也可以不是物理上分开的，作为模块显示的部件可以是或者也可以不是物理模块，即可以位于一个地方，或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
本公开的实施例还提出一种通信装置，包括：处理器；用于存储计算机程序的存储器；其中，当所述计算机程序被处理器执行时，实现上述任一实施例所述的物理下行控制信道接收方法。
本公开的实施例还提出一种通信装置，包括：处理器；用于存储计算机程序的存储器；其中，当所述计算机程序被处理器执行时，实现上述任一实施例所述的物理下行控制信道发送方法。
本公开的实施例还提出一种计算机可读存储介质，用于存储计算机程序，所述计算机程序被处理器执行时，实现上述任一实施例所述的物理下行控制信道接收方法 中的步骤。
本公开的实施例还提出一种计算机可读存储介质，用于存储计算机程序，当所述计算机程序被处理器执行时，实现上述任一实施例所述的物理下行控制信道发送方法中的步骤。
如图14所示，图14是根据本公开的实施例示出的一种用于物理下行控制信道发送的装置1400的示意框图。装置1400可以被提供为一基站。参照图14，装置1400包括处理组件1422、无线发射/接收组件1424、天线组件1426、以及无线接口特有的信号处理部分，处理组件1422可进一步包括一个或多个处理器。处理组件1422中的其中一个处理器可以被配置为实现上述任一实施例所述的物理下行控制信道发送方法。
图15是根据本公开的实施例示出的一种用于物理下行控制信道接收的装置1500的示意框图。例如，装置1500可以是移动电话、计算机、数字广播终端、消息收发设备、游戏控制台、平板设备、医疗设备、健身设备、个人数字助理等。
参照图15，装置1500可以包括以下一个或多个组件：处理组件1502、存储器1504、电源组件1506、多媒体组件1508、音频组件1510、输入/输出(I/O)的接口1512、传感器组件1514以及通信组件1516。
处理组件1502通常控制装置1500的整体操作，诸如与显示、电话呼叫、数据通信、相机操作和记录操作相关联的操作。处理组件1502可以包括一个或多个处理器1520来执行指令，以完成上述的物理下行控制信道接收方法的全部或部分步骤。此外，处理组件1502可以包括一个或多个模块，便于处理组件1502和其他组件之间的交互。例如，处理组件1502可以包括多媒体模块，以方便多媒体组件1508和处理组件1502之间的交互。
存储器1504被配置为存储各种类型的数据以支持在装置1500的操作。这些数据的示例包括用于在装置1500上操作的任何应用程序或方法的指令、联系人数据、电话簿数据、消息、图片、视频等。存储器1504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，如静态随机存取存储器(SRAM)、电可擦除可编程只读存储器(EEPROM)、可擦除可编程只读存储器(EPROM)、可编程只读存储器(PROM)，只读存储器(ROM)、磁存储器、快闪存储器、磁盘或光盘。
电源组件1506为装置1500的各种组件提供电力。电源组件1506可以包括电 源管理系统，一个或多个电源，及其他与为装置1500生成、管理和分配电力相关联的组件。
多媒体组件1508包括在所述装置1500和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件1508包括一个前置摄像头和/或后置摄像头。当装置1500处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件1510被配置为输出和/或输入音频信号。例如，音频组件1510包括一个麦克风(MIC)，当装置1500处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器1504或经由通信组件1516发送。在一些实施例中，音频组件1510还包括一个扬声器，用于输出音频信号。
I/O接口1512为处理组件1502和外围接口模块之间提供接口，上述外围接口模块可以是键盘、点击轮、按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件1514包括一个或多个传感器，用于为装置1500提供各个方面的状态评估。例如，传感器组件1514可以检测到装置1500的打开/关闭状态，组件的相对定位，例如所述组件为装置1500的显示器和小键盘，传感器组件1514还可以检测装置1500或装置1500一个组件的位置改变，用户与装置1500接触的存在或不存在，装置1500方位或加速/减速和装置1500的温度变化。传感器组件1514可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件1514还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件1514还可以包括加速度传感器、陀螺仪传感器、磁传感器、压力传感器或温度传感器。
通信组件1516被配置为便于装置1500和其他设备之间有线或无线方式的通信。装置1500可以接入基于通信标准的无线网络，如WiFi、2G、3G、4G LTE、5G NR 或它们的组合。在一个示例性实施例中，通信组件1516经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件1516还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术、红外数据协会(IrDA)技术、超宽带(UWB)技术、蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置1500可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述物理下行控制信道接收方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器1504，上述指令可由装置1500的处理器1520执行以完成上述物理下行控制信道接收方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上对本公开实施例所提供的方法和装置进行了详细介绍，本文中应用了具体个例对本公开的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本公开的方法及其核心思想；同时，对于本领域的一般技术人员，依据本公开的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本公开的限制。

Claims (25)

  1. 一种物理下行控制信道接收方法，其特征在于，由终端执行，所述方法包括：
    确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式；
    根据所述接收方式接收所述NR PDCCH。
  2. 根据权利要求1所述的方法，其特征在于，所述接收方式包括以下至少之一：
    第一接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔；
    第二接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配rate matching。
  3. 根据权利要求2所述的方法，其特征在于，所述确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式包括：
    接收网络侧设备发送的指示信息；
    根据所述指示信息确定所述接收方式。
  4. 根据权利要求3所述的方法，其特征在于，所述指示信息携带在以下至少之一中：
    无线资源控制信令；
    广播信息。
  5. 根据权利要求2所述的方法，其特征在于，所述确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式包括：
    根据所述终端对所述接收方式的支持能力确定所述接收方式。
  6. 根据权利要求5所述的方法，其特征在于，所述根据所述终端对所述接收方式的支持能力确定所述接收方式包括：
    在所述终端仅支持所述第一接收方式的情况下，确定所述第一接收方式为所述接收方式；
    在所述终端仅支持所述第二接收方式的情况下，确定所述第二接收方式为所述接收方式；
    在所述终端支持所述第一接收方式和所述第二接收方式的情况下，在所述第一接收方式和所述第二接收方式确定默认方式为所述接收方式。
  7. 根据权利要求5所述的方法，其特征在于，所述方法还包括：
    向网络侧设备上报所述支持能力的信息。
  8. 根据权利要求2所述的方法，其特征在于，所述确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式包括：
    确定所述NR PDCCH中PDCCH候选candidate对应的聚合等级；
    根据所述聚合等级确定所述接收方式。
  9. 根据权利要求8所述的方法，其特征在于，所述根据所述聚合等级确定所述接收方式包括：
    在所述聚合等级大于第一预设门限时，确定所述第一接收方式为所述接收方式；
    在所述聚合等级小于或等于第一预设门限时，确定所述第二接收方式为所述接收方式。
  10. 根据权利要求8所述的方法，其特征在于，所述根据所述聚合等级确定所述接收方式包括：
    在所述聚合等级大于第二预设门限时，确定所述第二接收方式为所述接收方式；
    在所述聚合等级小于或等于第二预设门限时，确定所述第一接收方式为所述接收方式。
  11. 一种物理下行控制信道发送方法，其特征在于，由网络侧设备执行，所述方法包括：
    确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，终端接收所述NR PDCCH的接收方式；
    向所述终端发送指示信息，其中，所述指示信息用于指示所述接收方式。
  12. 根据权利要求11所述的方法，其特征在于，所述接收方式包括以下至少之一：
    第一接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH所在的第二资源进行打孔；
    第二接收方式：根据所述LTE CRS对应的第一资源对所述NR PDCCH进行速率匹配rate matching。
  13. 根据权利要求11所述的方法，其特征在于，所述指示信息携带在以下至少之一中：
    无线资源控制信令；
    广播信息。
  14. 根据权利要求12所述的方法，其特征在于，所述确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，终端接收所述NR PDCCH的接收方式包括：
    确定所述终端对所述接收方式的支持能力；
    根据所述终端对所述接收方式的支持能力确定所述接收方式。
  15. 根据权利要求14所述的方法，其特征在于，所述根据所述终端对所述接收方式的支持能力确定所述接收方式包括：
    在所述终端仅支持所述第一接收方式的情况下，确定所述第一接收方式为所述接收方式；
    在所述终端仅支持所述第二接收方式的情况下，确定所述第二接收方式为所述接收方式；
    在所述终端支持所述第一接收方式和所述第二接收方式的情况下，在所述第一接收方式和所述第二接收方式确定默认方式为所述接收方式。
  16. 根据权利要求14所述的方法，其特征在于，所述方法还包括：
    接收所述终端上报的所述支持能力的信息。
  17. 根据权利要求12所述的方法，其特征在于，所述确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，发送所述NR PDCCH的接收方式包括：
    确定所述NR PDCCH中PDCCH候选candidate对应的聚合等级；
    根据所述聚合等级确定所述接收方式。
  18. 根据权利要求17所述的方法，其特征在于，所述根据所述聚合等级确定所述接收方式包括：
    在所述聚合等级大于第一预设门限时，确定所述第一接收方式为所述接收方式；
    在所述聚合等级小于或等于第一预设门限时，确定所述第二接收方式为所述接收方式。
  19. 根据权利要求17所述的方法，其特征在于，所述根据所述聚合等级确定所述接收方式包括：
    在所述聚合等级大于第二预设门限时，确定所述第二接收方式为所述接收方式；
    在所述聚合等级小于或等于第二预设门限时，确定所述第一接收方式为所述接收方式。
  20. 一种物理下行控制信道接收装置，其特征在于，包括：
    处理模块，被配置为确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，接收所述NR PDCCH的接收方式；
    接收模块，被配置为根据所述接收方式接收所述NR PDCCH。
  21. 一种物理下行控制信道发送装置，其特征在于，包括：
    处理模块，被配置为确定在长期演进小区专属参考信号LTE CRS与新空口物理下行控制信道NR PDCCH冲突的情况下，终端接收所述NR PDCCH的接收方式；
    发送模块，被配置为向所述终端发送指示信息，其中，所述指示信息用于指示所述接收方式。
  22. 一种通信装置，其特征在于，包括：
    处理器；
    用于存储计算机程序的存储器；
    其中，当所述计算机程序被处理器执行时，实现权利要求1至10中任一项所述的物理下行控制信道接收方法。
  23. 一种通信装置，其特征在于，包括：
    处理器；
    用于存储计算机程序的存储器；
    其中，当所述计算机程序被处理器执行时，实现权利要求11至19中任一项所述的物理下行控制信道发送方法。
  24. 一种计算机可读存储介质，用于存储计算机程序，其特征在于，当所述计算机程序被处理器执行时，实现权利要求1至10中任一项所述的物理下行控制信道接收方法中的步骤。
  25. 一种计算机可读存储介质，用于存储计算机程序，其特征在于，当所述计算机程序被处理器执行时，实现权利要求11至19中任一项所述的物理下行控制信道发送方法中的步骤。
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