Downlink transmission sending method, downlink transmission receiving method, device and communication equipment

Abstract

The embodiments of the present disclosure disclose a downlink transmission sending method, a downlink transmission receiving method, an apparatus and a communication device. Applied in a base station, the downlink transmission sending method includes: for a downlink transmission with N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resource of the synchronization signal block, abandoning the sending of the downlink transmission on the first transmission resource, or punching holes on the first transmission resource to send the downlink transmission; wherein, the first transmission resource is: the transmission resource of the repeated transmission that overlaps with the transmission resource of the synchronization signal block in at least one resource unit RE; and N is a positive integer equal to or greater than 2.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology but is not limited to the field of wireless communication technology, and in particular to a downlink transmission sending method, a downlink transmission receiving method, an apparatus and a communication device. Background Art

[0002] In the 4th Generation (4G) mobile communication system of Long Term Evolution (LTE), two technologies, Machine Type Communications (MTC) and Narrow Band Insternt of Things (NB-IoT), are proposed to support IoT services. These two technologies are mainly aimed at low-rate, high-latency scenarios, such as meter reading and environmental monitoring. NB-IoT currently only supports a maximum rate of several hundred k, and MTC currently only supports a maximum rate of several M.

[0003] On the other hand, with the continuous development of IoT services, such as video surveillance, smart home, wearable devices and industrial sensor monitoring, these services usually require a rate of tens to 100M, and also have relatively high requirements for latency, so it is difficult for MTC and NB-IoT technologies in LTE to meet the requirements. Based on this situation, many companies have proposed to design a new IoT technology in the fifth generation mobile communication (5th Generation, 5G) new radio (New Radio, NR) to cover the requirements of such mid-range IoT devices.

[0004] On the other hand, similar to IoT devices in LTE, IoT based on 5G NR usually needs to meet the following requirements: low cost, low complexity, a certain degree of coverage enhancement and power saving.

[0005] Since the current NR new air interface is designed for high-end terminals such as high speed and low latency, the current design cannot meet the above requirements of NR-IoT. Therefore, the current NR system needs to be modified to meet the requirements of NR-IoT. For example, in order to meet the requirements of low cost and low complexity, the NR-IoT radio frequency (RF) bandwidth can be limited, such as to 5 MHz or 10 MHz, or the size of the NR-IoT buffer can be limited, thereby limiting the size of each received transmission block, etc. For power saving, possible optimization directions are to simplify the communication process, reduce the number of times NR-IoT users detect downlink control channels, etc.

[0006] In the scenario of NR coverage enhancement, for NR-lite user equipment, due to the limitation of terminal capabilities, such as bandwidth and number of receiving antennas, it will have a negative impact on the coverage of the terminal, so a coverage enhancement solution is needed.

[0007] In order to enhance coverage, a commonly used coverage enhancement solution is repeated transmission, such as repeatedly sending the same information in the time domain and then combining and receiving it at the terminal.

[0008] The purpose of sending the Synchronization Signal Block (SSB) in NR is to enable the terminal to find the cell when it is powered on and to find a new cell when the terminal moves within the system. Summary of the invention

[0009] In view of this, the embodiments of the present disclosure provide a downlink transmission sending method, a downlink transmission receiving method, an apparatus and a communication device.

[0010] A first aspect of an embodiment of the present application provides a downlink transmission sending method, wherein the method is applied in a base station, and the method includes:

[0011] For a downlink transmission having N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resources of a synchronization signal block, the sending of the downlink transmission on a first transmission resource is abandoned, or the downlink transmission is sent by puncturing the first transmission resource; wherein the first transmission resource is: the transmission resource of the repeated transmission overlapping with the transmission resources of the synchronization signal block in at least one resource unit RE; the puncturing sending is: abandoning sending part of the downlink transmission mapped on the overlapping resources of the first transmission resource and the second resource; and N is a positive integer equal to or greater than 2.

[0012] Based on the above solution, the method further includes:

[0013] When the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet a preset condition, determining to abandon the downlink transmission sent on the first transmission resource;

[0014] and / or

[0015] When the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block meets the preset condition, it is determined to puncture the first transmission resource to send the downlink transmission.

[0016] Based on the above solution, the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following:

[0017] The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold;

[0018] The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

[0019] Based on the above solution, when giving up sending the downlink transmission on the first transmission resource, the method further includes:

[0020] discarding the M repeated transmissions corresponding to the first transmission resource, the downlink transmission having a total of NM repeated transmissions;

[0021] or,

[0022] Delaying the sending of the repeated transmissions M times corresponding to the first transmission resource, the downlink transmission having a total of N repeated transmissions;

[0023] Wherein, M is a positive integer less than N.

[0024] Based on the above solution, the method further includes:

[0025] When the downlink transmission is sent by puncturing the first transmission resource, rate matching of the downlink transmission is performed according to the resource quantity of the first transmission resource.

[0026] Based on the above solution, the downlink transmission includes: physical downlink shared channel PDSCH transmission and / or physical downlink control channel PDCCH transmission.

[0027] A second aspect of an embodiment of the present application provides a downlink transmission receiving method, which is applied in a terminal and includes:

[0028] For a downlink transmission having N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resources of a synchronization signal block, the receiving of the downlink transmission on a first transmission resource is abandoned, or the downlink transmission is received by puncturing the first transmission resource; wherein the first transmission resource is: the transmission resource of the repeated transmission overlapping with the transmission resources of the synchronization signal block in at least one resource unit RE; the punctured reception is: abandoning the reception of part of the downlink transmission mapped on the overlapping resources of the first transmission resource and the second resource; and N is a positive integer equal to or greater than 2.

[0029] Based on the above solution, the method further includes:

[0030] When the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet a preset condition, determining to abandon the downlink transmission received on the first transmission resource;

[0031] and / or

[0032] When the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block meets the preset condition, it is determined to punch holes on the first transmission resource to receive the downlink transmission.

[0033] Based on the above solution, the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following:

[0034] The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold;

[0035] The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

[0036] Based on the above solution, the method further includes:

[0037] When decoding and puncturing the received downlink transmission, the data length of the punctured first transmission resource is padded to the data length of the unpunctured first transmission resource.

[0038] Based on the above solution, when receiving the downlink transmission through decoding and puncturing, padding the data length of the punctured first transmission resource to the data length of the unpunctured first transmission resource includes:

[0039] When decoding the downlink transmission received by puncturing, setting the receiving power of the punctured transmission resource in the first transmission resource to a preset value;

[0040] or,

[0041] When decoding the downlink transmission received by puncturing, using a preset sequence as a data symbol carried by the punctured transmission resource in the first transmission resource;

[0042] or,

[0043] When decoding the downlink transmission received by puncturing, a predetermined value is used as the data bit carried by the punctured transmission resource in the first transmission resource.

[0044] Based on the above solution, when giving up receiving the downlink transmission on the first transmission resource, the method further includes:

[0045] Data decoding is performed according to the repeated transmission of NM, wherein M is the number of repeated transmissions overlapping with the transmission resources of the synchronization signal block; and M is a positive integer less than N.

[0046] Based on the above solution, when giving up receiving the downlink transmission on the first transmission resource, the method further includes:

[0047] delaying reception of the M repeated transmissions corresponding to the first transmission resource;

[0048] Data decoding is performed according to the N times of repeated transmission.

[0049] A third aspect of an embodiment of the present application provides a downlink transmission receiving device, wherein the device is applied to a base station, and includes:

[0050] A sending module is configured to, for a downlink transmission with N repeated transmissions, abandon sending the downlink transmission on a first transmission resource, or puncture the first transmission resource to send the downlink transmission in response to the existence of the repeated transmission overlapping with the transmission resources of a synchronization signal block; wherein the first transmission resource is: the transmission resource of the repeated transmission overlapping with the transmission resources of the synchronization signal block in at least one resource unit RE; the punctured sending is: abandoning sending the part of the downlink transmission mapped on the overlapping resources of the first transmission resource and the second resource; and N is a positive integer equal to or greater than 2.

[0051] Based on the above solution, the device further includes: a first determination module;

[0052] The first determination module is configured to determine to abandon the downlink transmission sent on the first transmission resource when the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet the preset condition; and / or, when the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block meets the preset condition, determine to puncture the first transmission resource to send the downlink transmission.

[0053] Based on the above solution, the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following:

[0054] The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold;

[0055] The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

[0056] Based on the above solution, when giving up sending the downlink transmission on the first transmission resource, the apparatus further includes:

[0057] A discarding module, configured to discard the M repeated transmissions corresponding to the first transmission resource, the downlink transmission having a total of NM repeated transmissions;

[0058] or,

[0059] A first delay module is configured to delay sending of the M repeated transmissions corresponding to the first transmission resource, and the downlink transmission has a total of N repeated transmissions;

[0060] Wherein, M is a positive integer less than N.

[0061] Based on the above solution, the device also includes:

[0062] The rate matching module is used to perform rate matching of the downlink transmission according to the resource quantity of the first transmission resource when the downlink transmission is sent by punching holes on the first transmission resource.

[0063] Based on the above solution, the downlink transmission includes: physical downlink shared channel PDSCH transmission and / or physical downlink control channel PDCCH transmission.

[0064] A fourth aspect of an embodiment of the present application provides a data receiving device, which is applied to a terminal and includes:

[0065] A receiving module is configured to, for a downlink transmission with N repeated transmissions, abandon receiving the downlink transmission on a first transmission resource, or puncture the first transmission resource to receive the downlink transmission in response to the existence of the repeated transmission overlapping with the transmission resource of the synchronization signal block; wherein the first transmission resource is: the transmission resource of the repeated transmission overlapping with the transmission resource of the synchronization signal block in at least one resource unit RE; the punctured reception is: abandoning receiving part of the downlink transmission mapped on the overlapping resources of the first transmission resource and the second resource; and N is a positive integer equal to or greater than 2.

[0066] Based on the above solution, the device further includes: a second determination module;

[0067] The second determination module is configured to determine to abandon the downlink transmission received on the first transmission resource when the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet the preset condition; and / or, when the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block meets the preset condition, determine to punch holes on the first transmission resource to receive the downlink transmission.

[0068] Based on the above solution, the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following:

[0069] The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold;

[0070] The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

[0071] Based on the above solution, the device also includes:

[0072] The padding module is configured to pad the data length of the punctured first transmission resource to the data length of the unpunctured first transmission resource when decoding and receiving the downlink transmission.

[0073] Based on the above scheme, the padding module is configured to set the receiving power of the punctured transmission resource in the first transmission resource to a preset value when decoding the downlink transmission received by the puncturing; or, when decoding the downlink transmission received by the puncturing, use a preset sequence as the data symbol carried by the punctured transmission resource in the first transmission resource; or, when decoding the downlink transmission received by the puncturing, use a predetermined value as the data bit carried by the punctured transmission resource in the first transmission resource.

[0074] Based on the above solution, when giving up receiving the downlink transmission on the first transmission resource, the apparatus further includes:

[0075] The first decoding module is configured to perform data decoding according to the repeated transmission NM, wherein M is the number of repeated transmissions overlapping with the transmission resources of the synchronization signal block; and M is a positive integer less than N.

[0076] Based on the above solution, when giving up receiving the downlink transmission on the first transmission resource, the apparatus further includes:

[0077] A second delay module is configured to delay the reception of the M repeated transmissions corresponding to the first transmission resource;

[0078] The second decoding module is configured to perform data decoding according to the N times of repeated transmission.

[0079] A fifth aspect of an embodiment of the present application provides a communication device, comprising a processor, a transceiver, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein the processor executes the method provided by any technical solution of the first aspect or the second aspect when running the executable program.

[0080] A sixth aspect of an embodiment of the present application provides a computer storage medium, which stores an executable program; after the executable program is executed by a processor, it can execute the method provided by any technical solution of the first aspect or the second aspect mentioned above.

[0081] The technical solution provided by the embodiment of the present application is that if there is a resource conflict between one or more repeated transmissions in N repeated transmissions and the transmission of the synchronization signal, the base station will abandon sending downlink transmissions or punch holes to send downlink transmissions on the corresponding one or more repeated transmissions. In this way, the problem of how the base station resolves the conflict of wireless signals when there are multiple repeated transmissions in the downlink transmission and the transmission resources of the SSB overlap with the transmission resources of at least one repeated transmission is solved, and conflict-free and effective transmission of the synchronization signal and the wireless signal in the scenario of multiple repeated transmissions is achieved. The terminal will abandon the reception of downlink transmissions or punch holes to send downlink transmissions on the corresponding one or more repeated transmissions, thereby reducing unnecessary reception of the terminal and reducing terminal power consumption.

[0082] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0083] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the embodiments of the present invention.

[0084] Figure 1 is a schematic structural diagram of a wireless communication system according to an exemplary embodiment;

[0085] Figure 2 It is a flowchart of a downlink transmission sending method according to an exemplary embodiment;

[0086] Figure 3 It is a flowchart of a downlink transmission sending method according to an exemplary embodiment;

[0087] Figure 4 is a flow chart of a downlink transmission receiving method according to an exemplary embodiment;

[0088] Figure 5 is a flowchart of another downlink transmission receiving method according to an exemplary embodiment;

[0089] Figure 6 is a schematic structural diagram of a downlink transmission sending device according to an exemplary embodiment;

[0090] Figure 7 is a structural schematic diagram of a downlink transmission receiving device according to an exemplary embodiment;

[0091] Figure 8 is a schematic diagram of the structure of a terminal according to an exemplary embodiment;

[0092] Fig. 9is a schematic structural diagram of a base station according to an exemplary embodiment;

[0093] Fig.10 The figure is a flowchart of a downlink transmission sending method according to an exemplary embodiment. DETAILED DESCRIPTION

[0094] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the following exemplary embodiments do not represent all implementations consistent with the embodiments of the present invention. Instead, they are merely examples of devices and methods consistent with some aspects of the embodiments of the present invention as detailed in the appended claims.

[0095] The terms used in the disclosed embodiments are only for the purpose of describing specific embodiments and are not intended to limit the disclosed embodiments. The singular forms of "a", "said" and "the" used in the disclosed embodiments and the appended claims are also intended to include plural forms unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used herein refers to and includes any or all possible combinations of one or more associated listed items.

[0096] It should be understood that although the terms first, second, third, etc. may be used to describe various information in the disclosed embodiments, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the disclosed embodiments, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining".

[0097] Please refer to Figure 1 , which shows a schematic diagram of the structure of a wireless communication system provided by an embodiment of the present disclosure. Figure 1 As shown, the wireless communication system is a communication system based on cellular mobile communication technology, and the wireless communication system may include: a plurality of terminals 11 and a plurality of base stations 12 .

[0098] Among them, the terminal 11 can be a device that provides voice and / or data connectivity to the user. The terminal 11 can communicate with one or more core networks via a radio access network (RAN). The terminal 11 can be an Internet of Things terminal, such as a sensor device, a mobile phone (or a "cellular" phone), and a computer with an Internet of Things terminal. For example, it can be a fixed, portable, pocket-sized, handheld, computer-built-in or vehicle-mounted device. For example, a station (STA), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, an access point, a remote terminal, an access terminal, a user terminal, a user agent, a user device, or a user equipment (UE). Alternatively, the terminal 11 can also be a device of an unmanned aerial vehicle. Alternatively, the terminal 11 can also be a vehicle-mounted device, for example, it can be a driving computer with wireless communication function, or a wireless communication device connected to an external driving computer. Alternatively, the terminal 11 may also be a roadside device, for example, a street lamp, a traffic light or other roadside device with a wireless communication function.

[0099] The base station 12 may be a network-side device in a wireless communication system. The wireless communication system may be a fourth generation mobile communication technology (4G) system, also known as a long term evolution (LTE) system; or, the wireless communication system may be a 5G system, also known as a new radio (NR) system or a 5G NR system. Alternatively, the wireless communication system may be the next generation system of the 5G system. The access network in the 5G system may be referred to as NG-RAN (New Generation-Radio Access Network). Alternatively, an MTC system.

[0100] Among them, the base station 12 can be an evolved base station (eNB) adopted in the 4G system. Alternatively, the base station 12 can also be a base station (gNB) adopting a centralized distributed architecture in the 5G system. When the base station 12 adopts a centralized distributed architecture, it usually includes a centralized unit (CU) and at least two distributed units (DU). The centralized unit is provided with a protocol stack of a packet data convergence protocol (PDCP) layer, a radio link layer control protocol (RLC) layer, and a media access control (MAC) layer; the distributed unit is provided with a physical (Physical, PHY) layer protocol stack. The specific implementation method of the base station 12 is not limited in the embodiment of the present disclosure.

[0101] A wireless connection can be established between the base station 12 and the terminal 11 through a wireless air interface. In different implementations, the wireless air interface is a wireless air interface based on the fourth generation mobile communication network technology (4G) standard; or, the wireless air interface is a wireless air interface based on the fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a new air interface; or, the wireless air interface can also be a wireless air interface based on the next generation mobile communication network technology standard of 5G.

[0102] In some embodiments, E2E (End to End) connections may also be established between the terminals 11, such as V2V (vehicle to vehicle) communication, V2I (vehicle to Infrastructure) communication, and V2P (vehicle to pedestrian) communication in vehicle to everything (V2X) communication.

[0103] In some embodiments, the wireless communication system may further include a network management device 13 .

[0104] Several base stations 12 are respectively connected to a network management device 13. The network management device 13 may be a core network device in a wireless communication system. For example, the network management device 13 may be a mobility management entity (MME) in an evolved packet core (EPC). Alternatively, the network management device may be other core network devices, such as a serving gateway (SGW), a public data network gateway (PGW), a policy and charging rules function (PCRF), or a home subscriber server (HSS). The implementation form of the network management device 13 is not limited in the embodiments of the present disclosure.

[0105] like Figure 2 As shown, an embodiment of the present application provides a downlink transmission sending method, wherein the method is applied in a base station, and the method includes:

[0106] S110: For a downlink transmission having N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resources of a synchronization signal block, abandon sending the downlink transmission on a first transmission resource, or puncture the first transmission resource to send the downlink transmission; wherein, the first transmission resource is: the transmission resource of the repeated transmission overlapping with the transmission resources of the synchronization signal block in at least one RE; and N is a positive integer equal to or greater than 2.

[0107] The downlink transmission sending method in this embodiment can be applied to 4G or 5G or any subsequent generation communication system. Taking the 5G system as an example, each NR cell will periodically send a synchronization signal in the downlink. The synchronization signal carried by the synchronization signal block includes the primary synchronization signal, the secondary synchronization signal and the physical broadcast channel, which is called the synchronization signal. For a specific SSB, it lasts for 4 orthogonal frequency division multiplexing (OFDM) symbols in the time domain and 240 subcarriers in the frequency domain.

[0108] A key difference between SSB and LTE signals is that the network (e.g., base station) may send SSB in a beam scanning manner, that is, sending different SSBs on different beams in a time division multiplexing manner. The set of SSBs in beam scanning is called a synchronization signal burst set (SSB burst). For a specific terminal, it may only see one SSB, and for other SSBs, it needs to be notified through high-level signaling.

[0109] However, in some scenarios, the transmission resources of SSB overlap with the resources of downlink transmission. The downlink transmission here may include: transmission of downlink control channel and / or transmission of downlink data channel. For example, the downlink transmission includes: transmission of physical downlink control channel (Physical Downlink Control Channel, PDCCH) and / or transmission of physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).

[0110] There may be multiple repeated transmissions for downlink transmission of MTC terminals, NB-IoT terminals or NR-lite terminals. Typical NR-lite terminals include but are not limited to wearable devices, industrial sensors, monitoring equipment and / or medical equipment.

[0111] For example, a data has N repeated transmissions, so the transmission resources occupied by one or more repeated transmissions in the N repeated transmissions may overlap with the transmission resources of the SSB. Resource overlap here means that the transmission resources occupied by one or more repeated transmissions are also occupied by the SSB.

[0112] In an embodiment of the present application, if it is found that the transmission resources of one or more repeated transmissions overlap with the transmission resources of SSB by at least one RE, the downlink transmission on the first transmission resource with at least one RE resource overlap is abandoned, or resource puncturing is performed on the first transmission resource to perform punctured transmission.

[0113] Here, giving up sending downlink transmission on the first transmission resource means that no data transmission is performed on the transmission resource of repeated transmission that overlaps with the SSB by at least one RE, and only the synchronization signal is transmitted.

[0114] The puncturing transmission here means: the puncturing transmission means: giving up sending the part of the downlink transmission mapped on the overlapping resources of the first transmission resource and the second resource. Specifically, the puncturing transmission means: puncturing the part of the first transmission resource occupied by the SSB, that is, discarding the data information mapped to the part occupied by the SSB, but the part of the first transmission resource not occupied by the SSB is still used for sending the downlink transmission.

[0115] In an embodiment of the present application, if one or more repeated transmissions in N repeated transmissions overlap with the transmission of the synchronization signal, it is provided that the downlink transmission is abandoned or the downlink transmission is sent by punching holes on the corresponding one or more repeated transmissions. In this way, when there are multiple repeated transmissions in the downlink transmission, when the transmission resources of the SSB overlap with the transmission resources of at least one repeated transmission, how the base station performs the conflict of the wireless signal is solved, and the conflict-free and effective transmission of the synchronization signal and the wireless signal in the scenario of multiple repeated transmissions is realized.

[0116] In some embodiments, the method further comprises:

[0117] When the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet a preset condition, determining to abandon the downlink transmission sent on the first transmission resource;

[0118] and / or

[0119] When the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block meets the preset condition, it is determined to puncture the first transmission resource to send the downlink transmission.

[0120] In an embodiment of the present application, whether the base station adopts the method of abandoning transmission or perforating transmission on the first transmission resource is determined according to the overlapping condition of the first transmission resource repeatedly transmitted once or multiple times and the second transmission resource of the synchronization signal block.

[0121] For example, if the degree of overlap between the first transmission resource and the second transmission resource of the synchronization signal block is very small, if the transmission on the entire first transmission resource is abandoned, it may cause a lot of transmission resource waste. At this time, it is preferred to choose punctured transmission, so as to reduce resource waste.

[0122] For another example, if the first transmission resource and the second transmission resource of the synchronization signal block overlap to a large extent, if puncturing is adopted, the amount of data transmitted downlink by puncturing is very small, and the transmission complexity of the base station and the complexity of the terminal are increased. In this case, it can be preferred to send SSB on the entire first transmission resource to reduce the complexity of data transmission for the base station and the terminal.

[0123] For example, the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following:

[0124] The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold;

[0125] The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

[0126] In the embodiment of the present application, the overlapping resources of the first transmission resource and the second transmission resource are counted in units of RE. If the number of overlapping REs is less than the first threshold, it can be considered that the degree of overlap is small, and puncturing can be given priority to reduce resource waste. The first threshold is a positive integer, which can be an experimental value or an empirical value.

[0127] However, in other embodiments, if the resources of the first transmission resource and the second transmission resource are relatively small or relatively large, comparing the number of overlapping REs with the first threshold to determine the degree of overlap may still lead to unnecessary waste of resources and / or complexity of encoding and decoding. In this case, the second threshold may be determined based on the percentage of the number of overlapping resources to the first transmission resource. The second threshold may be a ratio, for example, a percentage. The specific value of the second threshold may be 0.2, 0.3, 0.4, or 0.5.

[0128] In summary, in the embodiments of the present application, the method of abandoning sending or perforating sending suitable for the current overlapping situation will be selected according to the overlapping situation, thereby minimizing unnecessary waste of resources and suppressing unnecessary increase in encoding and decoding complexity.

[0129] In some embodiments, when giving up sending the downlink transmission on the first transmission resource, the method further includes:

[0130] discarding the M repeated transmissions corresponding to the first transmission resource, the downlink transmission having a total of NM repeated transmissions;

[0131] or,

[0132] Delaying the sending of the repeated transmissions M times corresponding to the first transmission resource, the downlink transmission having a total of N repeated transmissions;

[0133] Wherein, M is a positive integer less than N.

[0134] When sending on the first transmission resource is abandoned, the number of repeated transmissions by the base station on the originally configured resource may be less than the configured N times. For example, by abandoning repeated transmission on the first transmission resource, the number of repeated transmissions actually completed is NM times.

[0135] In the embodiment of the present application, there are two processing methods for this situation:

[0136] One is: abandon M repeated transmissions and maintain NM repeated transmissions;

[0137] The other is: if N transmissions need to be guaranteed, then the M repeated transmissions abandoned on the first transmission resource will be delayed. For example, after completing NM transmissions, the unfinished M repeated transmissions are immediately performed. For another example, the transmission is delayed to the next transmission cycle. For periodic transmissions, the M repeated transmissions abandoned in this cycle will be automatically delayed to the transmission resources configured in the next cycle. The delayed transmission here refers to the original transmission time of the abandoned M transmissions.

[0138] In one embodiment, the specific transmission mode of abandoning M repeated transmissions or delaying M repeated transmissions can be determined according to the current channel conditions. For example, if the current channel condition is good, for example, through the transmission of various types of reference signals, it is found that the received strength of the reference signal is greater than or equal to the strength threshold, it can be considered that the current channel condition is good, and the M repeated transmissions can be directly abandoned without delaying the transmission. If it is found that the current channel condition is not good, for example, the received strength of the reference signal is less than the aforementioned strength threshold, the M repeated transmissions can be delayed.

[0139] Thus, when the channel condition is good, the receiving gain of the terminal can still be ensured by appropriately reducing one or more repeated transmissions. When the channel condition is bad, the receiving gain of the terminal can also be ensured by delaying M repeated transmissions.

[0140] In another embodiment, whether to abandon M repeated transmissions or delay M repeated transmissions can be determined according to the value of M. For example, if M is greater than or equal to the abandonment threshold, and delayed transmission is not performed at this time, the terminal may not be able to obtain sufficient time domain gain to successfully decode the data sent by the base station, so delayed transmission is used so that the final actual number of repeated transmissions remains M. If the current M is less than the abandonment threshold, delayed transmission is not performed at this time, the number of repeated transmissions actually received by the terminal is still relatively large, and there is also sufficient time domain gain to successfully decode the data sent by the base station.

[0141] In some embodiments, the abandonment threshold may be determined according to N, and the abandonment threshold may be a preset percentage of N.

[0142] In some other embodiments, the value of M and the channel conditions are combined to comprehensively determine whether to abandon M repeated transmissions so that the actual number of repeated transmissions is NM times, or to delay M repeated transmissions so that the actual number of repeated transmissions is N times.

[0143] In the embodiment of the present application, the puncturing and sending includes: sending the downlink transmission on the first transmission resource other than the overlapping resource. The puncturing and sending method can reduce the waste of transmission resources as much as possible.

[0144] In some embodiments, Figure 3 As shown, the method also includes:

[0145] S100: When puncturing and sending the downlink transmission on the first transmission resource, rate matching of the downlink transmission is performed according to the resource quantity of the first transmission resource. Punctured transmission includes: punctured transmission and punctured reception. For downlink transmission, punctured transmission on the base station side is punctured transmission, and on the terminal side, punctured transmission is punctured reception.

[0146] Here, the rate matching of downlink transmission is performed according to the first transmission resource quantity, that is, when performing rate matching, the number of resources participating in the rate matching includes the part overlapping with the SSB transmission resources.

[0147] Here, if the base station uses perforated transmission to perform repeated transmission overlapping with SSB resources, in order to reduce the complexity of rate matching, the rate matching of downlink transmission is still performed according to the number of resources of the first transmission resource before perforation, thereby reducing multiple repeated transmissions of the same data. There are multiple rate matchings, resulting in high coding and modulation complexity and high decoding and demodulation complexity of the terminal.

[0148] In some embodiments, the downlink transmission includes: physical downlink shared channel PDSCH transmission and / or physical downlink control channel PDCCH transmission.

[0149] For example, for PDSCH, the base station will not send repeated transmissions of this PDSCH, and the base station will preferentially transmit SSB on this resource.

[0150] For PDCCH, if a repeated transmission of a candidate resource position of a PDCCH overlaps with the transmission resources of SSB, and the base station selects this PDCCH candidate resource position to carry PDCCH information, then the base station will not transmit at the repeated transmission position where there is a collision (i.e., resource overlap), and the base station will give priority to transmitting SSB.

[0151] Of course, the above is an example of downlink transmission, and the specific implementation process is not limited to the above example.

[0152] like Figure 4 As shown, this embodiment provides a downlink transmission receiving method, which is applied in a terminal and includes:

[0153] S210: For a downlink transmission with N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resource of the synchronization signal block, abandon receiving the downlink transmission on the first transmission resource, or puncture the first transmission resource to receive the downlink transmission; wherein the first transmission resource is: the transmission resource of the repeated transmission overlapping with the transmission resource of the synchronization signal block in at least one RE; N is a positive integer equal to or greater than 2. The punctured reception may be: abandoning receiving part of the downlink transmission mapped on the overlapping resources of the first transmission resource and the second resource.

[0154] The terminal described in the embodiments of the present application may be various types of terminals, for example, an MTC terminal, an NB-IoT terminal or an NR-lite terminal.

[0155] Since the resource scheduling of downlink transmission and SSB is completed in advance, the terminal can determine whether there is resource overlap between downlink transmission and SSB through the resource scheduling of the base station before officially receiving the downlink transmission.

[0156] Therefore, in the embodiment of the present application, for downlink transmission with N repeated transmissions, the terminal will also give up receiving the downlink transmission on the first transmission resource or puncture the downlink transmission when it is determined that the transmission resource of one or more repeated transmissions overlaps with the transmission resource of SSB by at least one RE. The punctured reception here means: puncturing the part of the first transmission resource occupied by SSB, that is, discarding the data information mapped to the part occupied by SSB, but the part of the first transmission resource not occupied by SSB is still used for receiving downlink transmission.

[0157] By giving up receiving or performing puncturing reception, the terminal can reduce the reception of unnecessary downlink transmissions, reduce the power consumption generated by such unnecessary downlink reception, and thus extend the standby time of the terminal.

[0158] In some embodiments, the method further comprises:

[0159] When the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet a preset condition, determining to abandon the downlink transmission received on the first transmission resource;

[0160] and / or

[0161] When the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block meets the preset condition, it is determined to punch holes on the first transmission resource to receive the downlink transmission.

[0162] In the embodiment of the present application, the terminal also determines whether the preset conditions are met according to the overlapping conditions, and if the preset conditions are met, puncturing reception is adopted to reduce the resource waste caused by directly abandoning the transmission. If the preset conditions are not met, the reception is abandoned, thereby reducing unnecessary reception.

[0163] In some embodiments, the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following:

[0164] The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold;

[0165] The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

[0166] In the embodiment of the present application, the overlapping condition between the first transmission resource and the second transmission resource is measured in units of RE. The more overlapping REs there are, the more serious the overlapping condition is.

[0167] Specifically, how to meet the preset condition can be determined by counting the overlapping REs and then comparing the number of overlapping REs with the first threshold to determine whether the preset condition is met. Of course, it can also be measured in percentage to more accurately indicate the degree of overlap between the first transmission resource and the second transmission resource of the SSB.

[0168] In some embodiments, Figure 5 As shown, the method also includes:

[0169] S220: When decoding and puncturing the received downlink transmission, pad the data length of the punctured first transmission resource to the data length of the unpunctured first transmission resource.

[0170] If the terminal performs punctured reception, the terminal will still receive N repeated transmissions, but if there is punctured reception of one or more repeated transmissions, the data length of the repeated transmissions received by puncturing is smaller than the expected data length. In order to achieve comprehensive decoding of multiple repeated transmissions, the data length of the first transmission resource of the punctured transmission will be padded, and the padded data length will be consistent with the originally expected data length of the first transmission resource, so that it can be aligned with other multiple repeated transmissions of non-punctured transmissions for decoding to ensure the decoding correctness of the terminal.

[0171] In some embodiments, when receiving the downlink transmission by decoding the puncturing, padding the data length of the punctured first transmission resource to the data length of the unpunctured first transmission resource includes:

[0172] When decoding the downlink transmission received by puncturing, setting the receiving power of the punctured transmission resource in the first transmission resource to a preset value;

[0173] or,

[0174] When decoding the downlink transmission received by puncturing, using a preset sequence as a data symbol carried by the punctured transmission resource in the first transmission resource;

[0175] or,

[0176] When decoding the downlink transmission received by puncturing, a predetermined value is used as the data bit carried by the punctured transmission resource in the first transmission resource.

[0177] There are two optional ways to pad the data length. One is to set the receiving power of the punctured transmission resource to a preset value before decoding the punctured received downlink data. The preset value can be 0 or any positive number, so that the data length is padded from the power level.

[0178] Another way is to use a preset sequence as data symbols or data bits of the punctured transmission resource when decoding the punctured received downlink transmission.

[0179] The preset sequence may be: an all-"0" sequence or an all-"1" sequence, or an alternate sequence of "0" and "1". The terminal may restore the data sent by the base station through various error correction mechanisms.

[0180] In some embodiments, when padding data symbols with a preset sequence, a mixed sequence formed by a combination of "0" and "1" can be given priority. Generally, most data contains "0" and "1" during transmission, which can reduce the workload of error correction during decoding.

[0181] In an embodiment of the present application, one data symbol corresponds to multiple data bits. For example, one data symbol is modulated by multiple data bits. When padding the data length of the punctured first transmission resource, the data length can be padded with a data symbol as the minimum unit or with a data bit as the minimum unit.

[0182] In one embodiment, the predetermined value may be "0" or "1".

[0183] In another embodiment, the predetermined value may include: "0" and "1" at the same time; in the process of padding the data length, "0" or "1" is selectively used for padding according to the padding strategy. For example, "0" and "1" are used alternately to pad the data length according to the padding strategy to reduce the workload of error correction in the decoding process as much as possible.

[0184] In the embodiment of the present application, data symbols are padded with a preset sequence, which is the length padding after the terminal receives the data, converts it into data symbols according to the received power and before demodulation.

[0185] In the embodiment of the present application, the padding of data bits with a predetermined value is to pad the data length after the terminal completes demodulation.

[0186] In short, there are many ways to complete the data, which can occur at various stages of the terminal's data decoding.

[0187] In some embodiments, when giving up receiving the downlink transmission on the first transmission resource, the method further includes:

[0188] Data decoding is performed according to the repeated transmission of NM, wherein M is the number of repeated transmissions overlapping with the transmission resources of the synchronization signal block; and M is a positive integer less than N.

[0189] If the M repeated transmissions that are repeated with the transmission resources of the SSB are directly abandoned, the terminal can decode according to the NM repeated transmissions actually transmitted, for example, combine the NM repeated transmissions to perform data decoding.

[0190] In some other embodiments, when the receiving of the downlink transmission on the first transmission resource is abandoned, the method further includes:

[0191] delaying reception of the M repeated transmissions corresponding to the first transmission resource;

[0192] Data decoding is performed according to the N times of repeated transmission.

[0193] If the receiving of M repeated transmissions on the first transmission resource is abandoned, but the base station delays these M repeated transmissions, the terminal delays receiving M transmissions, and the number of repeated transmissions actually received by the terminal is still N. Therefore, during decoding, data decoding is still performed based on these N repeated transmissions.

[0194] In order to ensure N receptions, the M repeated receptions abandoned on the first transmission resource will be delayed. For example, after completing NM transmissions, the unfinished M repeated receptions will be immediately performed. For another example, the transmission is delayed to the next transmission cycle. For periodic transmissions, the M repeated transmissions abandoned in this cycle will be automatically delayed to be received on the transmission resources configured in the next cycle. The delayed transmission here refers to the original transmission time of the abandoned M transmissions.

[0195] Specifically, the abandonment of M repeated transmissions is collected and the M repeated transmissions are delayed. Reference may be made to the embodiment applied in the base station, which is determined by the terminal according to the channel status and the value of / M.

[0196] like Figure 6 As shown, this embodiment provides a downlink transmission receiving device, which is applied in a base station, and the device includes:

[0197] The sending module 610 is configured to, for downlink transmission with N repeated transmissions, abandon sending the downlink transmission on a first transmission resource, or puncture the downlink transmission on the first transmission resource in response to the existence of the repeated transmission overlapping with the transmission resource of the synchronization signal block; wherein the first transmission resource is: the transmission resource of the repeated transmission overlapping with the transmission resource of the synchronization signal block in at least one resource unit RE; and N is a positive integer equal to or greater than 2. The puncturing transmission may be: abandoning sending part of the downlink transmission mapped on the overlapping resources of the first transmission resource and the second resource.

[0198] In some embodiments, the sending module 610 may be a program module; after the program module is executed by the processor, it can, for a downlink transmission having N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resources of the synchronization signal block, abandon sending the downlink transmission on the first transmission resource, or punch holes on the first transmission resource to send the downlink transmission; wherein, the first transmission resource is: the transmission resource of the repeated transmission that overlaps with the transmission resources of the synchronization signal block in at least one resource unit RE.

[0199] In some other embodiments, the sending module 610 may be a soft-hard combination module; the soft-hard combination module includes but is not limited to various programmable arrays; the programmable array includes but is not limited to: a complex programmable array or a field programmable array.

[0200] In some other embodiments, the sending module 610 may include: a pure hardware module; a pure hardware module includes but is not limited to: a dedicated integrated circuit.

[0201] In some embodiments, the apparatus further comprises: a first determination module;

[0202] The first determination module is configured to determine to abandon the downlink transmission sent on the first transmission resource when the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet the preset condition; and / or, when the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block meets the preset condition, determine to puncture the first transmission resource to send the downlink transmission.

[0203] In some embodiments, the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following:

[0204] The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold;

[0205] The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

[0206] In some embodiments, when giving up sending the downlink transmission on the first transmission resource, the apparatus further includes:

[0207] A discarding module, configured to discard the M repeated transmissions corresponding to the first transmission resource, the downlink transmission having a total of NM repeated transmissions;

[0208] or,

[0209] A first delay module is configured to delay sending of the M repeated transmissions corresponding to the first transmission resource, and the downlink transmission has a total of N repeated transmissions;

[0210] Wherein, M is a positive integer less than N.

[0211] In some embodiments, the apparatus further comprises:

[0212] The rate matching module is used to perform rate matching of the downlink transmission according to the resource quantity of the first transmission resource when the downlink transmission is sent by punching holes on the first transmission resource.

[0213] In some embodiments, the downlink transmission includes: physical downlink shared channel PDSCH transmission and / or physical downlink control channel PDCCH transmission.

[0214] like Figure 7 As shown, an embodiment of the present application provides a data receiving device, which is applied to a terminal and includes:

[0215] The receiving module 710 is configured to, for downlink transmission with N repeated transmissions, abandon receiving the downlink transmission on a first transmission resource, or puncture the first transmission resource to receive the downlink transmission in response to the existence of the repeated transmission overlapping with the transmission resource of the synchronization signal block; wherein the first transmission resource is: the transmission resource of the repeated transmission overlapping with the transmission resource of the synchronization signal block in at least one resource unit RE; and N is a positive integer equal to or greater than 2. The punctured reception may be: abandoning receiving part of the downlink transmission mapped on the overlapping resources of the first transmission resource and the second resource.

[0216] In some embodiments, the receiving module 710 may be a program module; after the program module is executed by the processor, it can, for a downlink transmission having N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resources of the synchronization signal block, abandon receiving the downlink transmission on the first transmission resource, or punch holes on the first transmission resource to receive the downlink transmission; wherein, the first transmission resource is: the transmission resource of the repeated transmission that overlaps with the transmission resources of the synchronization signal block in at least one resource unit RE.

[0217] In some other embodiments, the receiving module 710 may be a soft-hard combination module; the soft-hard combination module includes but is not limited to various programmable arrays; the programmable array includes but is not limited to: a complex programmable array or a field programmable array.

[0218] In some other embodiments, the receiving module 710 may include: a pure hardware module; a pure hardware module includes but is not limited to: a dedicated integrated circuit.

[0219] Based on the above scheme, the device further includes: a second determination module. The second determination module is configured to determine to abandon the downlink transmission received on the first transmission resource when the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet the preset condition; and / or determine to puncture the first transmission resource to receive the downlink transmission when the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block meets the preset condition.

[0220] In some embodiments, the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following:

[0221] The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold;

[0222] The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

[0223] In some embodiments, the apparatus further comprises:

[0224] The padding module is configured to pad the data length of the punctured first transmission resource to the data length of the unpunctured first transmission resource when decoding and receiving the downlink transmission.

[0225] In some embodiments, the padding module is configured to set the receiving power of the punctured transmission resource in the first transmission resource to a preset value when decoding the downlink transmission received by the puncturing; or, when decoding the downlink transmission received by the puncturing, use a preset sequence as the data symbol carried by the punctured transmission resource in the first transmission resource; or, when decoding the downlink transmission received by the puncturing, use a predetermined value as the data bit carried by the punctured transmission resource in the first transmission resource.

[0226] In some embodiments, when giving up receiving the downlink transmission on the first transmission resource, the apparatus further includes:

[0227] The first decoding module is configured to perform data decoding according to the repeated transmission NM, wherein M is the number of repeated transmissions overlapping with the transmission resources of the synchronization signal block; and M is a positive integer less than N.

[0228] In some embodiments, when giving up receiving the downlink transmission on the first transmission resource, the apparatus further includes:

[0229] A second delay module is configured to delay the reception of the M repeated transmissions corresponding to the first transmission resource;

[0230] The second decoding module is configured to perform data decoding according to the N times of repeated transmission.

[0231] The downlink transmission scenarios targeted by this example include but are not limited to:

[0232] One scenario is: during repeated transmission of the PDSCH scheduled by the network, when at least one repeated transmission resource overlaps with the transmission resource of the SSB;

[0233] Another scenario is that among all PDCCH candidate resource positions (candidates) detected by the user equipment, there is at least one scenario in which repeated transmission resources overlap with SSB transmission resources among the resources configured for repeated transmission by the base station.

[0234] There are two solutions to the above resource overlap:

[0235] Method 1: When a collision occurs: adopt the method of abandoning downlink transmission, that is, when the resources of a repeated transmission overlap with the transmission resources of SSB, skip the repeated transmission with collision.

[0236] For example, for downlink transmission of PDSCH, the base station will not send the repeated transmission of PDSCH, and the base station will preferentially transmit SSB on this resource. When receiving, the user will skip receiving and processing this repeated transmission.

[0237] For another example, for PDCCH, if a repeated transmission of a certain PDCCH candidate resource position overlaps with the transmission resource of SSB, and the base station selects this PDCCH candidate resource position (candidate) to carry PDCCH information, then the base station will not transmit at the repeated transmission position with collision, and the base station will give priority to transmitting SSB. On the user side, for the reception of this PDCCH candidate resource position, the user will skip the reception of the repeated transmission with collision.

[0238] When the number of repetitions configured by the network is N, if there are M repetitions that collide with SSB, there are two ways to handle it:

[0239] The first type: the repeated transmissions that are skipped are discarded, that is, the actual number of transmissions is NM times.

[0240] The second type: the skipped repeated transmission is delayed to a subsequent time domain without collision. Then the actual number of transmissions is still N, but the transmission time is extended.

[0241] Method 2: Punching method, retaining the number of repetitions of PDSCH / PDCCH candidate resource positions (candidate) with resource overlap with SSB, and only abandoning transmission for the overlapping part of resources.

[0242] Specifically, when the base station performs rate matching, it still performs rate matching according to the resources allocated to the user, that is, it does not subtract the resources occupied by SSB from the total allocated resources. When some repeatedly transmitted resources collide with SSB resources, the base station transmits SSB resources in a limited manner and discards the PDCCH / PDSCH information mapped to these overlapping resources.

[0243] When the user equipment is receiving the signal, the user will receive the repeated transmission, but the user end will take additional processing for the data carried on the resources occupied by the SSB, such as setting the power of the data symbols carried by that part to "0", or replacing the data carried by that part with "0" or "1", and correcting it through channel decoding.

[0244] The specific transmission method of mode 1 or mode 2 can be determined according to the resource overlap situation. For example, a condition is predefined, and when the condition is met, the puncturing transmission of mode 2 is adopted, that is, the repeated transmissions that collide are retained, and when the condition is not met, a repeated transmission that overlaps resources is discarded.

[0245] The predefined condition may be, for example, that the number of REs where resource overlap occurs is less than a certain value, or that the percentage of the amount of overlapping resources to the total amount of resources at the PDSCH or PDCCH candidate resource position is less than a certain ratio.

[0246] An embodiment of the present application provides a communication device, including a processor, a transceiver, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein when the processor runs the executable program, any of the aforementioned technical solutions is executed as a downlink transmission sending method applied in a base station or a downlink transmission receiving method applied in a terminal.

[0247] The communication device may be the aforementioned base station or terminal.

[0248] The processor may include various types of storage media, which are non-temporary computer storage media that can continue to memorize information stored thereon after the communication device loses power. Here, the communication device includes a base station or a user equipment.

[0249] The processor may be connected to the memory via a bus or the like, and is used to read an executable program stored in the memory, for example, Figures 2 to 5 At least one of the methods shown. An embodiment of the present application provides a computer storage medium, wherein the computer storage medium stores an executable program; after the executable program is executed by a processor, the downlink transmission sending method applied to a base station or the downlink transmission receiving method applied to a terminal provided in any of the aforementioned technical solutions can be implemented.

[0250] The present disclosure provides a downlink transmission sending method, the method comprising:

[0251] In response to the first transmission resource of the repeated transmission overlapping with the second transmission resource of the synchronization signal block SSB;

[0252] Overlapping resource units are used for synchronization signal block transmission SSB resource units.

[0253] The transmission resources for one repeated transmission may include: one or more REs.

[0254] In some embodiments, if in a transmission resource of a repeated transmission that overlaps with the transmission resource of SSB, in addition to the overlapping resource units, there are remaining resources that do not overlap with the transmission resource of SSB. The remaining resources can be discarded, and thus, the downlink transmission on the repeated transmission resource that overlaps with the SSB is abandoned. If the remaining resources continue to be used for downlink transmission, it is equivalent to the aforementioned punctured transmission.

[0255] In some embodiments, the method further comprises:

[0256] In response to the first transmission resource of the repeated transmission and the second transmission resource of the synchronization signal block overlapping, an overlapping state of the overlap is determined.

[0257] In some embodiments, using overlapping resource units for synchronization signal block transmission SSB includes:

[0258] In response to the number of resource units in which the first transmission resource of the repeated transmission overlaps with the second transmission resource of the synchronization signal block SSB is greater than or equal to the first threshold;

[0259] Overlapping resource units are used for synchronization signal block SSB transmission.

[0260] In some embodiments, using overlapping resource units for synchronization signal blocks and repeated transmission puncturing transmission includes:

[0261] In response to the number of resource units in which the first transmission resource of the repeated transmission overlaps with the second transmission resource of the synchronization signal block SSB is less than or equal to the first threshold,

[0262] Overlapping resource units are used for synchronization signal blocks and repeated transmission puncturing transmission.

[0263] In some embodiments, using overlapping resource units for synchronization signal block transmission SSB includes:

[0264] In response to the number of resource units in which the first transmission resource of the repeated transmission overlaps with the second transmission resource of the synchronization signal block SSB, as a proportion of the first transmission resource, being less than or equal to the second threshold,

[0265] Overlapping resource units are used for synchronization signal block SSB transmission.

[0266] In some embodiments, using overlapping resource units for synchronization signal blocks and repeated transmission puncturing transmission includes:

[0267] In response to the number of resource units in which the first transmission resource of the repeated transmission overlaps with the second transmission resource of the synchronization signal block SSB, the proportion of the first transmission resource is less than or equal to the second threshold;

[0268] Overlapping resource units are used for synchronization signal blocks and repeated transmission puncturing transmission.

[0269] In some embodiments, using overlapping resource units for synchronization signal block transmission SSB includes:

[0270] In response to the number of resource units in which the first transmission resource of the repeated transmission overlaps with the second transmission resource of the synchronization signal block SSB, the proportion of the second transmission resource being less than the second threshold or less than or equal to the second threshold,

[0271] Overlapping resource units are used for synchronization signal block SSB transmission.

[0272] In some embodiments, using overlapping resource units for synchronization signal block transmission SSB includes:

[0273] In response to the number of resource units in which the first transmission resource of the repeated transmission overlaps with the second transmission resource of the synchronization signal block SSB, the proportion of the second transmission resource being less than or equal to the second threshold,

[0274] Overlapping resource units are used for synchronization signal blocks and repeated transmission puncturing transmission.

[0275] In some embodiments, the method further comprises: performing transmission rate matching according to the determined transmission resources for repeated transmission.

[0276] In some embodiments, using overlapping resource units for synchronization signal blocks and repeated transmission puncturing transmission includes:

[0277] A portion of the overlapping resource units is used to transmit at least a portion of the synchronization signal block SSB, and the other portion of the non-overlapping resource units is used to transmit at least a portion of the downlink transmission.

[0278] like Fig.10 As shown, an embodiment of the present disclosure provides a downlink transmission sending method, wherein the method is applied in a base station, and the method includes:

[0279] S1001: In response to the overlap of the first transmission resource of N repeated transmissions with the second transmission resource of the synchronization signal block SSB, a synchronization information block SSB transmission is performed on the resource unit corresponding to the overlapping transmission resource; N is a positive integer equal to or greater than 2. The N repeated transmissions are N transmissions of the same downlink transmission.

[0280] In an embodiment of the present disclosure, in response to determining that a synchronization information block SSB is transmitted on a resource unit corresponding to the overlapping transmission resource, the repeated transmission corresponding to the transmission unit is abandoned. Abandoning the repeated transmission corresponding to the transmission unit may include no longer transmitting the repeated transmission corresponding to the transmission unit, or transmitting the part of the repeated transmission using the available transmission resources on the available transmission resources.

[0281] In an embodiment of the present disclosure, when encoding repeated transmissions, encoding may be performed for the repeated transmissions; and in response to overlap, the encoding corresponding to the repeated transmission units may be abandoned. In another embodiment of the present disclosure, when encoding repeated transmissions, repeated transmissions corresponding to the overlapping transmission units may be ignored, and other repeated transmissions may be encoded.

[0282] The downlink transmission sending method in this embodiment can be applied to 4G or 5G or any subsequent generation communication system. Taking the 5G system as an example, each NR cell will periodically send a synchronization signal in the downlink, and the synchronization signal carried by the synchronization signal block may include any one or more of the following: primary synchronization signal, secondary synchronization signal, physical broadcast channel. For a specific SSB, it lasts for 4 orthogonal frequency division multiplexing (OFDM) symbols in the time domain and 240 subcarriers in the frequency domain.

[0283] A key difference between SSB and LTE signals is that the network (e.g., base station) may send SSB in a beam scanning manner, that is, sending different SSBs on different beams in a time division multiplexing manner. The set of SSBs in beam scanning is called a synchronization signal burst set (SSB burst). For a specific terminal, it may only see one SSB, and for other SSBs, it needs to be notified through high-level signaling.

[0284] However, in some scenarios, the transmission resources of SSB overlap with the resources of downlink transmission. The downlink transmission here may include: transmission of downlink control channel and / or transmission of downlink data channel. For example, the downlink transmission includes: transmission of physical downlink control channel (Physical Downlink Control Channel, PDCCH) and / or transmission of physical downlink shared channel (Physical Downlink Shared Channel, PDSCH).

[0285] In some scenarios, there may be multiple repeated transmissions in downlink transmission, such as for MTC terminals, NB-IoT terminals, or NR-lite terminals. In some embodiments, typical NR-lite terminals include but are not limited to wearable devices, industrial sensors, monitoring equipment, and / or medical equipment.

[0286] For example, a piece of data is transmitted N times repeatedly, so the transmission resources occupied by any one of the N repeated transmissions may overlap with the transmission resources of the SSB. Resource overlap here means that a transmission resource occupied by a repeated transmission is also occupied by SSB. Of course, it is possible that multiple repeated transmissions among the N repeated transmissions overlap with SSB respectively. In this scenario, the solution of the embodiment of the present disclosure is executed for any overlapping repeated transmission or for each overlapping repeated transmission. The embodiment of the present disclosure is not limited to this.

[0287] In an embodiment of the present application, in response to the first transmission resource corresponding to one transmission of N repeated transmissions and the second transmission resource corresponding to the SSB transmission resource, at least a portion of resource units overlap, and SSB transmission of the synchronization information block is performed in the overlapping resource units, or, puncturing transmission is performed in the overlapping resource units.

[0288] This open embodiment proposes a method of transmitting a synchronization information block SSB in overlapping resource units, which means: transmitting the synchronization information block SSB in overlapping resource units without repeated transmission. That is, in response to the overlap between the first transmission resource and the second transmission resource, the synchronization signal block SSB is only transmitted in the overlapping resource unit, and the overlapping resource unit is not used for downlink transmission. In some embodiments of the present disclosure, punctured transmission means: a part of the overlapping resource unit is used to transmit at least a part of the synchronization signal block SSB, and the other parts of the non-overlapping resource units are used to transmit at least a part of the repeated transmission.

[0289] In the embodiment of the present application, when at least one transmission in the repeated transmission overlaps with the transmission resource corresponding to the transmission of the synchronization signal, the overlapping resource unit is used to transmit the synchronization signal block SSB. In this way, the problem of how to transmit when the transmission resource of SSB overlaps with the transmission resource of at least one repeated transmission in the case of multiple repeated transmissions in the downlink transmission is solved, and the conflict-free and effective transmission of the synchronization signal and the wireless signal in the scenario of multiple repeated transmissions is realized.

[0290] In some embodiments, the method further comprises:

[0291] In response to the overlap between the first transmission resource and the second transmission resource, it is determined to transmit only the synchronization signal block SSB, and to discard the non-overlapping resources or continue to use the non-overlapping resources to perform downlink transmission with N repeated transmissions.

[0292] In an embodiment of the present application, whether the base station uses only sending the synchronization signal block SSB or performing puncturing transmission on the overlapping resource units is determined based on the overlapping status of the first transmission resource of the repeated transmission and the second transmission resource of the synchronization signal block SSB.

[0293] For example, in response to a large overlap between a first transmission resource of repeated transmission and a second transmission resource of a synchronization signal block SSB, the transmission on the entire first transmission resource may be abandoned to reduce the complexity of data transmission between the base station and the terminal.

[0294] For another example, if the degree of overlap between the first transmission resource and the second transmission resource of the synchronization signal block is relatively small, if puncturing is used for transmission, it may result in a relatively large waste of transmission resources.

[0295] For example, if the first transmission resource of the repeated transmission overlaps with the second transmission resource of the synchronization signal block, the overlapping state is determined. In one embodiment of the present disclosure, the overlapping state can be reflected by the number of overlapping REs, or can be reflected by the ratio of the number of overlapping resources to the total number of resources of a repeated transmission. The number of overlapping resource units RE of the first resource unit and the second resource unit is less than a first threshold, which can indicate that there are few overlapping resource units.

[0296] or

[0297] The percentage of the number of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than the second threshold, which may indicate that the number of overlapping resource units is small.

[0298] In the embodiment of the present application, the overlapping resources of the first transmission resource and the second transmission resource are counted in units of RE. If the number of overlapping REs is less than the first threshold, it can be considered that the degree of overlap is small, and puncturing can be given priority to reduce resource waste. The first threshold is a positive integer, which can be an experimental value or an empirical value.

[0299] However, in other embodiments, if the resources of the first transmission resource and the second transmission resource are relatively small or relatively large, comparing the number of overlapping REs with the first threshold to determine the degree of overlap may still lead to unnecessary waste of resources and / or complexity of encoding and decoding. In this case, the second threshold may be determined based on the percentage of the number of overlapping resources to the first transmission resource. The second threshold may be a ratio, for example, a percentage. The specific value of the second threshold may be 0.2, 0.3, 0.4, or 0.5.

[0300] In summary, in the embodiments of the present application, the method of abandoning sending or perforating sending suitable for the current overlapping situation will be selected according to the overlapping situation, thereby minimizing unnecessary waste of resources and suppressing unnecessary increase in encoding and decoding complexity.

[0301] In some embodiments, when giving up sending the downlink transmission on the first transmission resource, the method further includes:

[0302] In response to M repeated transmissions in the N repeated transmissions overlapping with the synchronization signal block SSB transmission, the M repeated transmissions are abandoned, and the downlink transmission has a total of NM repeated transmissions;

[0303] or,

[0304] In response to M repeated transmissions in the N repeated transmissions overlapping with synchronization signal block SSB transmissions, delaying the sending of the M repeated transmissions; the downlink transmission has a total of N repeated transmissions;

[0305] or,

[0306] In response to M repeated transmissions in the N repeated transmissions overlapping with the synchronization signal block SSB transmission, m repeated transmissions are abandoned and Mm repeated transmissions are sent with delay; the downlink transmission has a total of N-M+m repeated transmissions;

[0307] Wherein, M is a positive integer less than N; and m is a positive integer less than M.

[0308] When transmission is abandoned on the first transmission resource, the number of repeated transmissions on the originally configured resource by the base station may be less than the configured N times. For example, by abandoning all overlapping repeated transmissions, the number of repeated transmissions actually completed is NM times. For another example, by abandoning some repeated transmissions, the number of repeated transmissions actually completed is N-M+m times.

[0309] In the embodiment of the present application, there are two processing methods for this situation:

[0310] One is: abandon M or m repeated transmissions and maintain NM repeated transmissions or N-M+m repeated transmissions;

[0311] The other is: if N transmissions need to be guaranteed, then the M repeated transmissions abandoned on the first transmission resource will be delayed. For example, after completing NM transmissions, the unfinished M repeated transmissions are immediately performed. For another example, the transmission is delayed to the next transmission cycle. For periodic transmissions, the M repeated transmissions abandoned in this cycle will be automatically delayed to the transmission resources configured in the next cycle. The delayed transmission here refers to the original transmission time of the abandoned M transmissions.

[0312] In one embodiment, the specific transmission mode of abandoning M repeated transmissions or delaying M repeated transmissions can be determined according to the current channel conditions. For example, if the current channel condition is good, for example, through the transmission of various types of reference signals, it is found that the received strength of the reference signal is greater than or equal to the strength threshold, it can be considered that the current channel condition is good, and the M repeated transmissions can be directly abandoned without delaying the transmission. If it is found that the current channel condition is not good, for example, the received strength of the reference signal is less than the aforementioned strength threshold, the M repeated transmissions can be delayed.

[0313] Thus, when the channel condition is good, the receiving gain of the terminal can still be ensured by appropriately reducing one or more repeated transmissions. When the channel condition is bad, the receiving gain of the terminal can also be ensured by delaying M repeated transmissions.

[0314] In another embodiment, whether to abandon M repeated transmissions or delay M repeated transmissions can be determined according to the value of M. For example, if M is greater than or equal to the abandonment threshold, and delayed transmission is not performed at this time, the terminal may not be able to obtain sufficient time domain gain to successfully decode the data sent by the base station, so delayed transmission is used so that the final actual number of repeated transmissions remains M. If the current M is less than the abandonment threshold, delayed transmission is not performed at this time, the number of repeated transmissions actually received by the terminal is still relatively large, and there is also sufficient time domain gain to successfully decode the data sent by the base station.

[0315] In some embodiments, the abandonment threshold may be determined according to N, and the abandonment threshold may be a preset percentage of N.

[0316] In some other embodiments, the value of M and the channel conditions are combined to comprehensively determine whether to abandon M repeated transmissions so that the actual number of repeated transmissions is NM times, or to delay M repeated transmissions so that the actual number of repeated transmissions is N times.

[0317] In the embodiment of the present application, the puncturing and sending includes: sending the downlink transmission on the first transmission resource other than the overlapping resource. The puncturing and sending method can reduce the waste of transmission resources as much as possible.

[0318] In some embodiments, Figure 3 As shown, the method also includes:

[0319] S100: In response to performing puncturing transmission in the overlapping resource units, rate matching of the downlink transmission is performed according to the resource quantity of the first transmission resources.

[0320] Here, the rate matching of downlink transmission is performed according to the first transmission resource quantity, that is, when performing rate matching, the number of resources participating in the rate matching includes the part overlapping with the SSB transmission resources.

[0321] Here, if the base station adopts the perforated transmission method to perform repeated transmission overlapping with the SSB resources, in order to reduce the complexity of rate matching, the downlink transmission rate matching is still performed according to the resource number of the first transmission resource before perforation, thereby reducing multiple repeated transmissions of the same data. There are multiple rate matchings, resulting in high coding and modulation complexity and high decoding and demodulation complexity of the terminal.

[0322] In some embodiments, the downlink transmission includes: physical downlink shared channel PDSCH transmission and / or physical downlink control channel PDCCH transmission.

[0323] For example, for PDSCH, the base station will not send repeated transmissions of this PDSCH, and the base station will preferentially transmit SSB on this resource.

[0324] For PDCCH, if a repeated transmission of a candidate resource position of a PDCCH overlaps with the transmission resources of SSB, and the base station selects this PDCCH candidate resource position to carry PDCCH information, then the base station will not transmit at the repeated transmission position where there is a collision (i.e., resource overlap), and the base station will give priority to transmitting SSB.

[0325] Of course, the above is an example of downlink transmission, and the specific implementation process is not limited to the above example.

[0326] Figure 8 8 is a block diagram of a terminal (UE) 800 according to an exemplary embodiment. For example, the terminal 800 may be a mobile phone, a computer, a digital broadcast user equipment, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, etc.

[0327] Reference Figure 8 The terminal 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0328] The processing component 802 generally controls the overall operation of the terminal 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0329] The memory 804 is configured to store various types of data to support operations at the terminal 800. Examples of such data include instructions for any application or method operating on the terminal 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 may be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as a static random access memory (SRAM), an electrically erasable programmable read-only memory (EEPROM), an erasable programmable read-only memory (EPROM), a programmable read-only memory (PROM), a read-only memory (ROM), a magnetic memory, a flash memory, a magnetic disk, or an optical disk.

[0330] Power component 806 provides power to various components of terminal 800. Power component 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power to terminal 800.

[0331] The multimedia component 808 includes a screen that provides an output interface between the terminal 800 and the user. In some embodiments, 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 the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the terminal 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and the rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0332] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the terminal 800 is in an operation mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0333] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0334] The sensor assembly 814 includes one or more sensors for providing various aspects of status assessment for the terminal 800. For example, the sensor assembly 814 can detect the open / closed state of the terminal 800, the relative positioning of the components, such as the display and keypad of the terminal 800, and the sensor assembly 814 can also detect the position change of the terminal 800 or a component of the terminal 800, the presence or absence of contact between the user and the terminal 800, the orientation or acceleration / deceleration of the terminal 800 and the temperature change of the terminal 800. The sensor assembly 814 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 may also include an optical sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

[0335] The communication component 816 is configured to facilitate wired or wireless communication between the terminal 800 and other devices. The terminal 800 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0336] In an exemplary embodiment, terminal 800 can be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above methods.

[0337] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by a processor 820 of the terminal 800 to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0338] like Fig. 9 As shown, an embodiment of the present disclosure shows a structure of a base station. For example, the base station 900 can be provided as a network side device. Fig. 9The base station 900 includes a processing component 922, which further includes one or more processors, and a memory resource represented by a memory 932 for storing instructions executable by the processing component 922, such as an application. The application stored in the memory 932 may include one or more modules, each corresponding to a set of instructions. In addition, the processing component 922 is configured to execute instructions to perform any of the aforementioned methods applied in the base station, such as Figure 2-3 The method shown.

[0339] The base station 900 may also include a power supply component 926 configured to perform power management of the base station 900, a wired or wireless network interface 950 configured to connect the base station 900 to a network, and an input / output (I / O) interface 958. The base station 900 may operate based on an operating system stored in the memory 932, such as Windows Server TM, Mac OS X TM, Unix TM, Linux TM, FreeBSD TM or the like.

[0340] Those skilled in the art will readily appreciate other embodiments of the present invention after considering the specification and practicing the invention disclosed herein. The present disclosure is intended to cover any variations, uses or adaptations of the present invention that follow the general principles of the present invention and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The description and examples are to be considered exemplary only, and the true scope and spirit of the present invention are indicated by the following claims.

[0341] It should be understood that the present invention is not limited to the exact construction that has been described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. A downlink transmission sending method, wherein: Applied in a base station, the method comprises: For a downlink transmission having N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resource of a synchronization signal block, determining to abandon sending the downlink transmission on a first transmission resource according to the overlapping condition between the downlink transmission of the N repeated transmissions and the transmission resource of the synchronization signal, wherein the downlink transmission includes: physical downlink shared channel PDSCH transmission and / or physical downlink control channel PDCCH transmission; The first transmission resource is: the transmission resource of the repeated transmission that overlaps with the transmission resource of the synchronization signal block in at least one resource unit RE; the determination to abandon sending the downlink transmission on the first transmission resource based on the overlapping condition of the downlink transmission of the N repeated transmissions and the transmission resource of the synchronization signal comprises: when the overlapping M times of the repeated transmissions are less than the abandonment threshold and the channel condition is good, the M times of the repeated transmissions corresponding to the first transmission resource are discarded, and the downlink transmission actually has NM times of repeated transmissions; wherein whether the channel condition is good is determined according to the reception strength and strength threshold of the reference signal; M is a positive integer less than N; and N is a positive integer equal to or greater than 2.

2. The method according to claim 1, wherein: The method further comprises: When the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet a preset condition, it is determined to abandon the downlink transmission sent on the first transmission resource.

3. The method according to claim 2, wherein: The overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following: The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold; The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

4. The method according to claim 1, wherein: When giving up sending the downlink transmission on the first transmission resource, the method further includes: When the overlapping M repeated transmissions are less than or equal to the abandonment threshold and the channel condition is not good, the sending of the M repeated transmissions corresponding to the first transmission resource is delayed, and the downlink transmission has a total of N repeated transmissions.

5. A downlink transmission receiving method, wherein: Applied in terminals, including: For a downlink transmission having N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resources of a synchronization signal block, it is determined to abandon receiving the downlink transmission on a first transmission resource according to the overlapping condition between the downlink transmission of the N repeated transmissions and the transmission resources of the synchronization signal, wherein the downlink transmission includes: a physical downlink shared channel PDSCH transmission and / or a physical downlink control channel PDCCH transmission; the first transmission resource is: a transmission resource of the repeated transmission overlapping with the transmission resources of the synchronization signal block in at least one resource unit RE; the determination to abandon receiving the downlink transmission on the first transmission resource according to the overlapping condition between the downlink transmission of the N repeated transmissions and the transmission resources of the synchronization signal comprises: when the number of overlapping M repeated transmissions is less than a abandonment threshold and the channel condition is good, the M repeated transmissions corresponding to the first transmission resource are discarded, and the downlink transmission actually has NM repeated transmissions; wherein whether the channel condition is good is determined according to the reception strength and strength threshold of a reference signal; M is a positive integer less than N; and N is a positive integer equal to or greater than 2.

6. The method according to claim 5, wherein: The method further comprises: When the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet a preset condition, it is determined to abandon the downlink transmission received on the first transmission resource.

7. The method according to claim 6, wherein: The overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following: The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold; The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

8. The method according to claim 5, wherein: When giving up receiving the downlink transmission on the first transmission resource, the method further includes: Data decoding is performed according to the repeated transmission of NM, wherein M is the number of repeated transmissions overlapping with the transmission resources of the synchronization signal block; and M is a positive integer less than N.

9. The method according to claim 5, wherein: When giving up receiving the downlink transmission on the first transmission resource, the method further includes: delaying reception of the M repeated transmissions corresponding to the first transmission resource; Data decoding is performed according to the N times of repeated transmission.

10. A downlink transmission receiving device, wherein: Applied in a base station, the device comprises: A sending module is configured to, for a downlink transmission with N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resources of a synchronization signal block, determine to abandon sending the downlink transmission on a first transmission resource according to the overlapping condition between the downlink transmission of the N repeated transmissions and the transmission resources of the synchronization signal, wherein the downlink transmission includes: physical downlink shared channel PDSCH transmission and / or physical downlink control channel PDCCH transmission; the first transmission resource is: the transmission resource of the repeated transmission overlapping with the transmission resources of the synchronization signal block in at least one resource unit RE; the determination to abandon sending the downlink transmission on the first transmission resource according to the overlapping condition between the downlink transmission of the N repeated transmissions and the transmission resources of the synchronization signal comprises: when the overlapping M repeated transmissions are less than a abandonment threshold and the channel condition is good, discard the M repeated transmissions corresponding to the first transmission resource, and the downlink transmission actually has NM repeated transmissions; wherein whether the channel condition is good is determined according to the reception strength and strength threshold of the reference signal; M is a positive integer less than N; and N is a positive integer equal to or greater than 2.

11. The device according to claim 10, wherein: The device also includes: a first determination module; The first determination module is configured to determine to abandon the downlink transmission sent on the first transmission resource when the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet the preset condition; and / or, when the overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block meets the preset condition, determine to puncture the first transmission resource to send the downlink transmission.

12. The device according to claim 10, wherein: The overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following: The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold; The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

13. The device according to claim 10, wherein: When giving up sending the downlink transmission on the first transmission resource, the apparatus further includes: The first delay module is configured to delay the sending of the M repeated transmissions corresponding to the first transmission resource, and the downlink transmission has a total of N repeated transmissions.

14. A data receiving device, wherein: Applied in terminals, including: A receiving module is configured to, for a downlink transmission having N repeated transmissions, in response to the existence of the repeated transmission overlapping with the transmission resources of a synchronization signal block, determine to abandon receiving the downlink transmission on a first transmission resource according to the overlapping condition between the downlink transmission of the N repeated transmissions and the transmission resources of the synchronization signal, wherein the downlink transmission includes: a physical downlink shared channel PDSCH transmission and / or a physical downlink control channel PDCCH transmission; the first transmission resource is: a transmission resource of the repeated transmission overlapping with the transmission resources of the synchronization signal block in at least one resource unit RE; the determination to abandon receiving the downlink transmission on the first transmission resource according to the overlapping condition between the downlink transmission of the N repeated transmissions and the transmission resources of the synchronization signal comprises: when the overlapping M repeated transmissions are less than a abandonment threshold and the channel condition is good, discarding the M repeated transmissions corresponding to the first transmission resource, and the downlink transmission actually has NM repeated transmissions; wherein whether the channel condition is good is determined according to the reception strength and strength threshold of the reference signal; M is a positive integer less than N; and N is a positive integer equal to or greater than 2.

15. The device according to claim 14, wherein: The device further includes: a second determining module; The second determination module is configured to determine to abandon the downlink transmission received on the first transmission resource when an overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block does not meet a preset condition.

16. The device according to claim 15, wherein: The overlapping condition between the first transmission resource and the second transmission resource of the synchronization signal block satisfies a preset condition, including at least one of the following: The number of overlapping resource units RE of the first transmission resource and the second transmission resource is less than a first threshold; The percentage of the amount of overlapping resources between the first transmission resource and the second transmission resource to the first transmission resource is less than a second threshold.

17. The device according to claim 14, wherein: When giving up receiving the downlink transmission on the first transmission resource, the apparatus further includes: The first decoding module is configured to perform data decoding according to the repeated transmission NM, wherein M is the number of repeated transmissions overlapping with the transmission resources of the synchronization signal block; and M is a positive integer less than N.

18. The device according to claim 14, wherein: When giving up receiving the downlink transmission on the first transmission resource, the apparatus further includes: A second delay module is configured to delay the reception of the M repeated transmissions corresponding to the first transmission resource; The second decoding module is configured to perform data decoding according to the N times of repeated transmission.

19. A communication device comprising a processor, a transceiver, a memory, and an executable program stored in the memory and capable of being run by the processor, wherein: When the processor runs the executable program, the method provided in any one of claims 1 to 4 or 5 to 9 is performed.

20. A computer storage medium storing an executable program; after being executed by a processor, the executable program can execute the method provided in any one of claims 1 to 4 or 5 to 9.

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