Signal repeated transmission determination method and device, storage medium and program product

Abstract

The invention provides a signal repeated transmission determination method and device, a storage medium and a program product, relates to the technical field of communication, and helps a terminal to determine a repeated transmission mode of a signal in time. The method comprises the following steps: determining repeated transmission information of a downlink channel based on predefined information and / or instruction information; the instruction information is located in at least one of the following items: a channel transmitted before the downlink channel and a physical downlink control channel corresponding to the downlink channel.

Description

Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular, to a method, apparatus, storage medium, and program product for determining signal repeated transmission. Background Art

[0002] In a non-terrestrial networks (NTN) scenario, since the link budget is limited by satellite transmit power and propagation path loss, link-level enhancement of the downlink channel is an effective method to improve coverage. Link-level enhancement can adopt repeated transmission to achieve the effect of increasing the link budget margin through time-domain energy accumulation. Since some downlink channels are monitored by non-connected terminal devices and provide key information for the terminal devices to access the network and maintain correct downlink synchronization. Therefore, if repeated transmission is applied on these downlink channels, there is a need for a suitable way to let the terminal devices know the specific repeated transmission method used to improve the transmission efficiency of the system. Summary of the Invention

[0003] Embodiments of the present disclosure provide a method, apparatus, storage medium, and program product for determining signal repeated transmission, which helps a terminal to timely determine the repeated transmission method of a signal. The technical solutions provided by the embodiments of the present disclosure are as follows:

[0004] On the one hand, a method for determining signal repeated transmission is provided. The method includes:

[0005] Based on predefined information and / or instruction information, determine the repeated transmission information of the downlink channel; the instruction information is located in at least one of the following: the channel transmitted before the downlink channel, the physical downlink control channel corresponding to the downlink channel.

[0006] On the other hand, a device for determining signal repeated transmission is provided. The device includes:

[0007] A processing module, configured to determine the repeated transmission information of the downlink channel based on predefined information and / or instruction information; the instruction information is located in at least one of the following: the channel transmitted before the downlink channel, the physical downlink control channel corresponding to the downlink channel.

[0008] In still another aspect, a communication device is provided, including: a memory and a processor; the memory and the processor are coupled; the memory is used to store computer program instructions executable by the processor; when the processor executes the computer program instructions, the method for determining signal repeated transmission according to any of the above embodiments is implemented.

[0009] In another aspect, a computer-readable storage medium is provided, on which computer program instructions are stored. When the computer program instructions run on a computer (such as a communication device or a signal retransmission determination device), the signal retransmission determination method of any of the above embodiments is implemented.

[0010] In another aspect, a computer program product is provided, which includes computer program instructions. When the computer program instructions are executed, the signal retransmission determination method of any of the above embodiments is implemented.

[0011] The technical solution provided by the embodiments of the present disclosure determines the retransmission information of the downlink channel based on predefined information and / or instruction information; the instruction information is located in at least one of the following: the channel transmitted before the downlink channel, and the physical downlink control channel corresponding to the downlink channel. In this way, when enhancing coverage through downlink channel retransmission, the terminal can timely and accurately learn the retransmission information of the downlink channel, can reduce the unnecessary listening time for the downlink channel, and reduce the power consumption of the terminal. At the same time, when the terminal can accurately determine the retransmission information of the downlink channel, even in a harsh communication environment, a high communication success rate can be maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the architecture of an NTN communication system provided by an embodiment of the present disclosure;

[0013] Figure 2 It is a flowchart of a signal retransmission determination method provided by an embodiment of the present disclosure;

[0014] Figure 3 It is a schematic diagram of the structure of another signal retransmission determination device provided by an embodiment of the present disclosure;

[0015] Figure 4 It is a schematic diagram of the structure of a communication device provided by an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] Next, the technical solutions in the embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only a part of the embodiments of the present disclosure, rather than all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.

[0017] In the description of the present disclosure, unless otherwise specified, " / " means "or". For example, A / B may represent A or B. The "and / or" herein is merely an association relationship describing associated objects, indicating that there can be three relationships. For example, A and / or B may represent: A exists alone, A and B exist simultaneously, and B exists alone. In addition, "at least one" means one or more, and "a plurality" means two or more. The terms such as "first" and "second" do not limit the quantity and execution order, and the terms such as "first" and "second" do not necessarily mean different.

[0018] It should be noted that in the present disclosure, words such as "exemplary" or "for example" are used to give examples, illustrations or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the present disclosure should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific manner.

[0019] To expand the application scenarios of new air interface access technologies for 5th-generation mobile communication technology (5G), 5G / 6G connections via satellites and / or aircraft are considered a promising application. In relevant standardizations, new radio-non-terrestrial network (NR-NTN) and internet of things-non-terrestrial network (IoT NTN) are supported. However, there are specific limitations in satellite payloads, such as limited satellite transmit power, resulting in a gain difference between the nadir beam and the edge beam. Therefore, to improve the downlink performance, especially when a handheld terminal (such as a mobile phone with a relatively low antenna gain of -5.5 dBi) is directly connected to a satellite, downlink coverage enhancement is required.

[0020] In addition, in terrestrial networks, as wireless communication systems move to higher frequencies, the propagation conditions deteriorate compared with lower frequencies, exacerbating the coverage challenge. Therefore, the downlink coverage performance, especially for common channels that usually use wide beam transmissions, needs to be enhanced specifically.

[0021] For link - level enhancement, re - transmission can be adopted to improve the link budget margin through time - domain energy accumulation. The current specification supports using the PDSCH to transmit common channels including system information, downlink messages related to the random access process, paging, etc. These channels are listened to by terminal devices (user equipment, UE) in the non - connected state (e.g., non RRC_CONNECTED) and provide key information for the UE to access the network and maintain correct downlink synchronization. If re - transmission is applied to these channels to improve link performance, there needs to be a suitable way for the UE to know the specific re - transmission method used.

[0022] Exemplarily, in the current NR - NTN specification, the physical downlink shared channel (PDSCH) is divided into common scheduling and user - specific scheduling, and is scheduled by the physical downlink control channel (PDCCH) in different search spaces (SS) respectively. The specific types of PDCCH that can be adopted can be referred to in Table 1. Since different SS types use different types of temporary identifiers (RNTI) for PDCCH CRC scrambling, the SS type adopted can also be determined based on the RNTI type, and thus the channel transmitted on the corresponding PDSCH can be known. The network node configures the SS for the user to indicate the timing when the UE should detect the PDCCH.

[0023] Table 1

[0024]

[0025]

[0026] In view of this, the present disclosure provides a method for determining signal re - transmission. By determining the re - transmission information of the downlink channel based on predefined information and / or instruction information; the instruction information is located in at least one of the following: the channel transmitted before the downlink channel, the physical downlink control channel corresponding to the downlink channel. In this way, when enhancing coverage through downlink channel re - transmission, the terminal can timely and accurately know the re - transmission information of the downlink channel, reduce the unnecessary listening time for the downlink channel, and reduce the energy consumption of the terminal. At the same time, when the terminal can accurately determine the re - transmission information of the downlink channel, even in a harsh communication environment, a high communication success rate can be maintained.

[0027] The signal repeated transmission determination method provided by the embodiments of the present disclosure can be applied to systems of multiple communication systems. For example, the systems to which the signal repeated transmission determination method provided by the embodiments of the present disclosure can be applied include, but are not limited to, NTN systems, LTE systems, various versions evolved from LTE, new radio (NR) systems, various versions evolved from NR, 5G systems, Ambient Internet of Things (Ambient IoT), NR-NTN, IoT NTN and other communication systems. In addition, the signal repeated transmission determination method provided by the embodiments of the present disclosure can also be applied to future-oriented communication systems (such as 6G communication systems), etc.

[0028] Exemplarily, Figure 1 Provide an NTN communication system, such as Figure 1 As shown, the communication system includes a terminal 20, an access network device 10, and a satellite 30. The terminal 20, the access network device 10, and the satellite 30 can be one or more, and the quantity is not limited.

[0029] The terminal 20 can communicate with the access network device 10 through the satellite 30. Correspondingly, the access network device 10 can also communicate with the terminal 20 through the satellite 30. Among them, the link between the terminal 20 and the satellite 30 is a service link, and the link between the access network device 10 (such as a base station, an NTN base station, a gateway station) and the satellite 30 is a feeder link, and it is common to all terminals 20 in the same cell.

[0030] In some embodiments, the access network device provides wireless access services for the terminal. One access network device provides at least one service coverage area (also called a cell). The terminal entering this area can communicate with the access network device through a wireless signal to receive the wireless access services provided by the access network device.

[0031] In some embodiments, the base station (BS) may be a base station in Long Term Evolution (LTE), Long Term Evolution Advanced (LTE-A), or an evolved Node B (eNB or eNodeB), a base station device in a 5G network, or a base station in a future communication system, etc. The base station may include various macro base stations, micro base stations, home base stations, remote radio heads, reconfigurable intelligent surfaces (RISs), routers, relays, network-controlled repeaters, transmit and receive points (TRPs), wireless fidelity (WIFI) devices, user equipment (UE), and other various network-side devices.

[0032] In some embodiments, the terminal may be a device with wireless transceiver functions. The terminal may be a passive device, an ambient Internet of Things (IoT) device, a mobile phone, a tablet (Pad), a computer with wireless transceiver functions, a virtual reality (VR) terminal, an augmented reality (AR) terminal, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, and so on. The embodiments of the present disclosure do not limit the application scenarios. The terminal may sometimes also be referred to as a user, user equipment (UE), access terminal, UE unit, UE station, mobile station, mobile unit, remote station, remote terminal, mobile device, UE terminal, wireless communication device, UE agent, or UE device, etc. The embodiments of the present disclosure do not limit this.

[0033] It should be noted that Figure 1 it is only an exemplary framework diagram, Figure 1 the number of devices included in it, and the names of each device are not restricted, and in addition to Figure 1 the devices shown, the communication system may also include other devices, such as core network devices.

[0034] The application scenarios of the embodiments of the present disclosure are not limited. The system architecture and service scenarios described in the embodiments of the present disclosure are for more clearly explaining the technical solutions of the embodiments of the present disclosure, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure. Those of ordinary skill in the art know that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided by the embodiments of the present disclosure are equally applicable to similar technical problems.

[0035] The embodiments of the present disclosure provide a method for determining signal repeated transmission, which is applied to a first node. As Figure 2 shown, the method includes the following steps:

[0036] S101. Determine the repeated transmission information of the downlink channel based on predefined information and / or instruction information.

[0037] Among them, the predefined information can be rules or values agreed upon in relevant protocols that are known to both the access network device and the terminal. For example, a set of repeated transmission times can be predefined in relevant specifications. If the access network device does not explicitly indicate by signaling, the UE determines the repeated transmission situation of the downlink channel according to the default value in the predefined set of repeated times.

[0038] The instruction information can include various types of instruction information. For example, the instruction information includes a flag bit, configuration information, and indication information. The flag bit refers to the bit in the signaling information sent by the access network device, which is used to enable the predefined information or enable relevant indications in other signaling. The configuration information refers to the configuration information in the signaling information sent by the access network device, generally quasi-static information, such as the content of a high-layer message. For example, high-layer messages in NR include radio resource control (RRC), media access control element (MAC control element, MAC CE), etc. The indication information refers to the indication information in the signaling information sent by the access network device, generally dynamic information. For example, dynamic signaling in NR includes MAC CE, downlink control information (DCI), etc.

[0039] In some embodiments, the downlink channel is one of the following: system information (SI), system information block 1 (SIB1), system information block x (denoted as SIBx), physical downlink shared channel (PDSCH); where x is an integer greater than 1.

[0040] In some embodiments, the repeated transmission information may include the identification information of the downlink channel. For example, the name of the downlink channel or the type of RNTI corresponding to the downlink channel.

[0041] Among them, the PDSCH names include at least: the second message (denoted as Msg2), the fourth message (denoted as Msg4), the Bth message (denoted as MsgB), the paging message (denoted as paging), the common channel (denoted as common PDSCH), and the common channel group (denoted as group common PDSCH). The RNTI types related to PDSCH include at least: SI-RNTI, RA-RNTI, TC-RNTI, MsgB-RNTI, C-RNTI, CS-RNTI, P-RNTI, PEI-RNTI, INT-RNTI, SFI-RNTI, TPC-PUSCH-RNTI, TPC-PUCCH-RNTI, TPC-SRS-RNTI, CI-RNTI, cellDTRX-RNTI, C-RNTI, MCS-C-RNTI, CS-RNTI(s), PS-RNTI. In this way, the downlink channel that needs to be retransmitted can be determined based on the PDSCH name or the RNTI type.

[0042] In some embodiments, the instruction information corresponding to the downlink channel is located in at least one of the following: the channel transmitted before the downlink channel, and the physical downlink control channel corresponding to the downlink channel.

[0043] For example, the instruction information corresponding to SIB1 can be located in at least one of the following: the master information block (MIB), the physical broadcast channel (PBCH), and the PDCCH corresponding to SIB1. The instruction information corresponding to SI or SIBx can be located in at least one of the following: MIB, PBCH, SIB1, the PDCCH corresponding to SIBx, SIBy, the PDCCH corresponding to SIBx, SI, and the PDCCH corresponding to SI. The instruction information corresponding to PDSCH can be located in at least one of the following: MIB, PBCH, SIB1, SIBx, SIBy, SI, and the PDCCH corresponding to PDSCH. Where y is an integer greater than 1 and not equal to x.

[0044] In some embodiments, the retransmission information includes at least the number of retransmissions of the downlink channel.

[0045] In some embodiments, the instruction information includes first instruction information (which can also be referred to as a flag bit, etc.). Determining the retransmission information of the downlink channel based on the instruction information includes: determining whether the number of retransmissions of the downlink channel is the default value in a predefined set of retransmission times based on the first instruction information.

[0046] In some embodiments, the first instruction information is located in a channel transmitted before the downlink channel.

[0047] Among them, all sets in the present disclosure can have one or more elements.

[0048] All sets in the present disclosure can have one element as the default value. For example, the default value can be understood as the default. For example, if a set has only one element, it is regarded as the default value. For example, if a set has multiple elements, the x-th element is the default value, where x is predefined, for example, x is equal to 1.

[0049] Exemplarily, for the repeated transmission of SIB1, the UE can determine whether the repeated transmission times of SIB1 are the default values in a predefined set of repeated times according to the first instruction information in the MIB, PBCH, or the PDCCH corresponding to SIB1.

[0050] Exemplarily, for the repeated transmission of SI / SIBx, the UE can determine whether the repeated transmission times of SI / SIBx are the default values in a predefined set of repeated times according to the first instruction information in the MIB, PBCH, SIB1, SIBy, or the PDCCH corresponding to SI / SIBx. Where y is an integer not equal to x.

[0051] Exemplarily, for the repeated transmission of PDSCH, there should be a predefined set of PDSCH names and a predefined set of repeated times in the relevant specifications. The UE can determine whether the repeated transmission times of multiple PDSCHs corresponding to the predefined set of PDSCH names are the default values in the predefined set of repeated times according to the first instruction information in the MIB, PBCH, SIB1, SI / SIBx, or the PDCCH corresponding to PDSCH.

[0052] In some embodiments, the instruction information includes second instruction information. Determining the repeated transmission information of the downlink channel based on the instruction information includes: determining the repeated transmission times of the downlink channel based on the second instruction information (which can also be referred to as configuration information, indication information, etc.). The second instruction information includes at least one of the following: a set of repeated times, a repeated times index, a set of applicable targets, an applicable target index, a set of association relationships, an association relationship index; the set of repeated times includes at least one repeated time, the repeated times index is used to determine at least one repeated time in the set of repeated times, the set of applicable targets includes at least one downlink channel for repeated transmission (the downlink channel for repeated transmission can be denoted as an applicable target), the applicable target index is used to determine a downlink channel for repeated transmission in the set of applicable targets, the set of association relationships contains the association relationships between at least one downlink channel for repeated transmission and the repeated times, and the association relationship index is used to determine the association relationship in the set of association relationships.

[0053] In some embodiments, the second instruction information is located in a channel transmitted before the downlink channel.

[0054] In some embodiments, when the second instruction information includes a set of repetition times, the UE determines that the repetition transmission times of the downlink channel are the default values in the set of repetition times.

[0055] In some embodiments, when the second instruction information includes a repetition - count index, the UE obtains the repetition transmission times of the downlink channel according to the repetition - count index from a predefined set of repetition times. There is a corresponding relationship between the repetition - count index and the repetition times in the predefined set of repetition times. Exemplarily, as shown in Table 2, a 2 - bit repetition - count index can correspond to 4 different repetition times. The 4 repetition times {2, 4, 8, 16} form a set of repetition times, and 2 can be predefined as the default value of the repetition times.

[0056] Table 2

[0057] Repetition number index Repetition number 00 2 01 4 10 8 11 16

[0058] In some embodiments, when the second instruction information includes a repetition - count index and a set of repetition times, the UE obtains the repetition transmission times of the downlink channel according to the repetition - count index from the set of repetition times. There is a corresponding relationship between the repetition - count index and the repetition times in the set of repetition times.

[0059] In some embodiments, when the second instruction information includes an applicable - target set, the UE determines that the downlink channels corresponding to the default value of the applicable - target set will have repetition transmissions, and determines that the repetition transmission times of the downlink channels are the default values in a predefined set of repetition times.

[0060] In some embodiments, when the second instruction information includes an applicable - target index, the UE obtains the downlink channels with repetition transmissions from a predefined applicable - target set according to the applicable - target index, and determines that the repetition transmission times of the downlink channels are the default values in a predefined set of repetition times.

[0061] In some embodiments, when the second instruction information includes a set of repetition times and an applicable - target set, the UE determines that the downlink channels corresponding to the default value of the applicable - target set will have repetition transmissions, and determines that the repetition transmission times of the downlink channels are the default values in the set of repetition times.

[0062] In some embodiments, when the second instruction information includes a set of repetition counts, a repetition count index, and an applicable target index, the UE obtains the downlink channel for repeated transmission from a predefined set of applicable targets according to the applicable target index, and obtains the number of repeated transmissions of the downlink channel from the set of repetition counts according to the repetition count index.

[0063] In some embodiments, when the second instruction information includes a repetition count index and an applicable target index, the UE obtains the downlink channel for repeated transmission from a predefined set of applicable targets according to the applicable target index, and obtains the number of repeated transmissions of the downlink channel from a predefined set of repetition counts according to the repetition count index.

[0064] In some embodiments, when the second instruction information includes a set of repetition counts and an applicable target index, the UE obtains the downlink channel for repeated transmission from a predefined set of applicable targets according to the applicable target index, and determines that the number of repeated transmissions of the downlink channel is the default value in the set of repetition counts.

[0065] In some embodiments, when the second instruction information includes a set of applicable targets and a repetition count index, the UE determines that there will be repeated transmission for the downlink channel corresponding to the default value of the set of applicable targets, and obtains the number of repeated transmissions of the downlink channel from a predefined set of applicable repetition counts according to the repetition count index.

[0066] In some embodiments, when the second instruction information includes a set of applicable targets and an applicable target index, the UE obtains at least one downlink channel for repeated transmission from the set of applicable targets according to the applicable target index, and determines that the number of repeated transmissions of the at least one downlink channel for repeated transmission is the default value in a predefined set of repetition counts.

[0067] In some embodiments, when the second instruction information includes a set of repetition counts, a set of applicable targets, and an applicable target index, the UE obtains the downlink channel for repeated transmission from the set of applicable targets according to the applicable target index, and determines that the number of repeated transmissions of the downlink channel for repeated transmission is the default value in the set of repetition counts.

[0068] In some embodiments, when the second instruction information includes a repetition count index, a set of applicable targets, and an applicable target index, the UE obtains the downlink channel for repeated transmission from the set of applicable targets according to the applicable target index, and obtains the number of repeated transmissions of the downlink channel for repeated transmission from a predefined set of repetition counts according to the repetition count index.

[0069] In some embodiments, when the second instruction information includes a set of repetition counts, a repetition count index, a set of applicable targets, and an applicable target index, the UE obtains the downlink channel for repeated transmission from the set of applicable targets according to the applicable target index, and obtains the number of repetitions of the downlink channel for repeated transmission from the set of repetition counts according to the repetition count index.

[0070] In some embodiments, the association relationships in the association relationship set include the following ways:

[0071] There is an omitted 1-to-1. For example, if there is only one predefined or configured applicable target, only the repetition count may be included. For example, if there is only one predefined or configured repetition count, only the applicable target may be included.

[0072] There is an omitted N-to-1. For example, if there are at least one predefined or configured applicable targets and all use the same repetition count, only the repetition count may be included.

[0073] 1-to-1, {1 applicable target, 1 repetition count};

[0074] N-to-1, {N applicable targets, 1 repetition count}, where N >= 1 in this example;

[0075] N-to-N, {N applicable targets, N repetition counts}, with the applicable targets and repetition counts corresponding one by one in order;

[0076] N-to-N, N groups of correspondences, {[applicable target 1, repetition count 1], [applicable target 2, repetition count 2]... [applicable target N, repetition count N]};

[0077] N-to-M, N applicable targets, M repetition counts, grouping multiple usage targets with the same repetition count together, where M is greater than or equal to N. For example, {[repetition count 1], [applicable target 1, applicable target 2]} + {[repetition count 2], [applicable target 3, applicable target 4, applicable target 5]} +... + {[repetition count M], [applicable target N]}.

[0078] If the association relationship between the applicable target and the repetition count is a predefined association relationship set, at least one association relationship between the applicable target and the repetition count in the predefined set, or the association relationship index between the applicable target and the repetition count, may be included. If the predefined association relationship set contains only 1 element, this second instruction information may not include the association relationship index.

[0079] In some embodiments, there may be a predefined association relationship between the downlink channel (the downlink channel may also be denoted as the applicable target) in the applicable target set in the present disclosure and the repetition count in the set of repetition counts.

[0080] Exemplarily, the predefined association relationships may include the following types:

[0081] 1-to-1, {1 applicable target, 1 repetition count};

[0082] N-to-1, {N applicable targets, 1 repetition count}, where N >= 1 in this example;

[0083] N-to-N, {N applicable targets, N repetition counts}, and the applicable targets and repetition counts correspond one by one in order;

[0084] N-to-N, N groups of correspondences, {[Applicable Target 1, Repetition Count 1], [Applicable Target 2, Repetition Count 2]... [Applicable Target N, Repetition Count N]};

[0085] N-to-M, N applicable targets, M repetition counts, grouping multiple usage targets with the same repetition count together, where M is greater than or equal to N. For example, {[Repetition Count 1], [Applicable Target 1, Applicable Target 2]} + {[Repetition Count 2], [Applicable Target 3, Applicable Target 4, Applicable Target 5]} +... + {[Repetition Count M], [Applicable Target N]}.

[0086] Among them, the applicable target set in the present disclosure may be one of the following: the name set of the downlink channel (such as the SI / SIBx set, the PDSCH name set), the name index set of the downlink channel, the RNTI type set, the RNTI type index set. It can be understood that as long as the downlink channel for repeated transmission can be determined based on the elements in the applicable target set, it is within the protection scope of the present disclosure. If the applicable target set is predefined, the corresponding indication of the applicable target set can be omitted.

[0087] For example, if the applicable target set is the name set of the downlink channel, the applicable target index may be the name index of the downlink channel. Or, if the applicable target set is the RNTI type set, the applicable target index may be the RNTI type index.

[0088] Among them, in the present disclosure, the repetition count can be obtained from the repetition count set included in the signaling or from the predefined repetition count set based on the repetition count index.

[0089] In the present disclosure, the applicable target (or the downlink channel for repeated transmission) can be obtained from the applicable target set included in the signaling or from the predefined applicable target set based on the applicable target index.

[0090] Exemplarily, for the repeated transmission of SIB1, the UE can determine the repeated transmission times of SIB1 according to the second instruction information in the MIB, PBCH, or the PDCCH corresponding to SIB1. For the repeated transmission of SI / SIBx, the UE can determine the repeated transmission times of SI / SIBx according to the second instruction information in the MIB, PBCH, SIB1, SIBy, or the PDCCH corresponding to SI / SIBx. Among them, the second instruction information includes at least one of the following at least: a set of repetition times, a repetition times index.

[0091] For example, in the case where the second instruction information includes a set of repetition times, the UE determines that the SIB1 / SI / SIBx of the downlink channel is the default value in the set of repetition times.

[0092] In the case where the second instruction information includes a repetition times index, the UE obtains and determines the repeated transmission times of SIB1 / SI / SIBx from a predefined set of repetition times according to the repetition times index.

[0093] In the case where the second instruction information includes a repetition times index and a set of repetition times, the UE obtains and determines the repeated transmission times of SIB1 / SI / SIBx from the set of repetition times according to the repetition times index.

[0094] Another exemplarily, for the repeated transmission of PDSCH, the UE can determine the repeated transmission times of PDSCH according to the second instruction information in the MIB, PBCH, SIB1, SI / SIBx, SIBy, or the PDCCH corresponding to PDSCH.

[0095] Among them, the second instruction information includes at least one of the following at least: a set of repetition times, a repetition times index, a set of PDSCH names, a PDSCH name index, a set of RNTI types, an RNTI type index.

[0096] For example, in the case where the second instruction information includes a set of repetition times and a set of PDSCH names, the UE determines that the PDSCH corresponding to the default value of the set of PDSCH names has repeated transmission, and determines that the repeated transmission times of the PDSCH is the default value in the set of repetition times.

[0097] In the case where the second instruction information includes a repetition times index and a set of PDSCH names, the UE determines that the PDSCH corresponding to the default value of the set of PDSCH names has repeated transmission, and obtains the repeated transmission times of the PDSCH from a predefined set of repetition times according to the repetition times index.

[0098] When the second instruction information includes a set of repetition counts and a set of RNTI types, the UE determines that there will be repeated transmissions for the PDSCH corresponding to the default value of the set of RNTI types, and determines that the number of repeated transmissions of the PDSCH is the default value in the set of repetition counts.

[0099] When the second instruction information includes a repetition count index and a set of RNTI types, the UE determines that there will be repeated transmissions for the PDSCH corresponding to the default value of the set of RNTI types, and obtains the number of repeated transmissions of the PDSCH from a predefined set of repetition counts according to the repetition count index.

[0100] In some embodiments, the instruction information includes third instruction information. Determining the repeated transmission information of the downlink channel based on the instruction information includes: determining the number of repeated transmissions of the downlink channel based on the third instruction information included in the channel transmitted before the downlink channel, where the third instruction information is used to indicate that the number of repeated transmissions of the downlink channel is the same as the number of repeated transmissions of the channel transmitted before the downlink channel.

[0101] Wherein, the third instruction information may include the name or name index of the downlink channel (or message) that needs to have the same number of repeated transmissions as the channel transmitted before the downlink channel. If it is the name index of the downlink channel (or message), there should be a predefined set of names of the downlink channel (or message).

[0102] Exemplarily, for the repeated transmission of SI / SIBx, it can follow the number of repeated transmissions of SIB1 (i.e., the same as the number of repeated transmissions of SIB1), that is, SIB1 contains the third instruction information, which is used to indicate that the number of repeated transmissions of SI / SIBx is the same as the number of repeated transmissions of SIB1.

[0103] For example, the UE determines the number of repetitions of SIB1 and applies this number of repetitions to at least one of SI / SIBx. The at least one SI / SIBx can be predefined or indicated in SIB1. The predefined or indication includes: one or more specific message names or message name indexes in the SI / SIBx set. If it is a message name index, there should be a predefined set of message names.

[0104] For the repeated transmission of SI / SIBx, it can also follow the number of repeated transmissions of other SI / SIBy (i.e., the same as the number of repeated transmissions of other SI / SIBy), that is, SI / SIBy contains the third instruction information, which is used to indicate that the number of repeated transmissions of SI / SIBx is the same as the number of repeated transmissions of SI / SIBy, where y is not equal to x.

[0105] For example, the UE determines the repetition count of SI / SIBy and applies this repetition count to SI / SIBx. y is not equal to x. The correspondence between x and y can be predefined or indicated in SI / SIBy. x can be a value or a set.

[0106] Exemplarily, for the repeated transmission of PDSCH, it can follow the repetition count of SIB1 or SI / SIBx (i.e., the same as the repeated transmission count of SIB1 or SI / SIBx), that is, SIB1 or SI / SIBx contains the third instruction information for indicating that the repeated transmission count of PDSCH is the same as the repeated transmission count of SIB1 or SI / SIBx.

[0107] For example, the UE determines the repetition count of SIB1 and applies this repetition count to at least one of the PDSCHs. The at least one PDSCH can be predefined or configured or indicated in SIB1 / SIBx.

[0108] For example, the UE determines the repetition count of SI / SIBx and applies this repetition count to at least one of the PDSCHs. The SI / SIBx and the corresponding at least one PDSCH can be predefined or configured or indicated in SIB1 / SIBx.

[0109] In some embodiments, the instruction information includes the fourth instruction information (which can also be referred to as configuration information, etc.) and the fifth instruction information (which can also be referred to as indication information, etc.). Based on the instruction information, determining the repeated transmission information of the downlink channel includes:

[0110] Based on the fourth instruction information and the fifth instruction indication information, determining the repeated transmission information of the downlink channel; the fourth instruction information includes at least one of the following at least: applicable target set, repetition count set, association relationship set. The applicable target set includes at least one downlink channel for repeated transmission. The repetition count set includes at least one repetition count. The association relationship set contains the association relationship between at least one downlink channel for repeated transmission and the repetition count. The fifth instruction information is at least used to indicate at least one of the following: at least one downlink channel for repeated transmission in the applicable target set, at least one repetition count in the repetition count set, at least one association relationship in the association relationship set.

[0111] It can be understood that if the applicable target set has only 1 element, it is regarded as the default usage target, then the fifth instruction information for indicating at least one downlink channel for repeated transmission in the applicable target set can be omitted. If the repetition count set has only 1 element, it is regarded as the default repetition count, then the fifth instruction information for indicating at least one repeated transmission count in the repetition count set can be omitted.

[0112] Among them, the association relationship set includes the association relationship between at least one downlink channel (or applicable target) transmitted repeatedly and the number of repetitions, and specific reference can be made to the description above.

[0113] In some embodiments, the fourth instruction information is located in the first channel transmitted before the downlink channel, and the fifth instruction information is located in the second channel transmitted before the downlink channel; or, the fourth instruction information is located in the channel transmitted before the downlink channel, and the fifth instruction information is located in the physical downlink control channel corresponding to the downlink channel.

[0114] Exemplarily, for the repeated transmission of SI / SIBx, the placement of the fourth instruction information and the fifth instruction information is one of the following:

[0115] The fourth instruction information is located in the MIB or PBCH, and the fifth instruction information is located in the SIB1 or SI / SIBy, where y is not equal to x;

[0116] The fourth instruction information is located in the MIB or PBCH, and the fifth instruction information is located in the PDCCH corresponding to SI / SIBx;

[0117] The fourth instruction information is located in the SIB1, and the fifth instruction information is located in the PDCCH corresponding to SI / SIBx.

[0118] Another exemplarily, for the repeated transmission of PDSCH, the placement of the fourth instruction information and the fifth instruction information is one of the following:

[0119] The fourth instruction information is located in the MIB or PBCH, and the fifth instruction information is located in the SIB1 or SI / SIBx;

[0120] The fourth instruction information is located in the SIB1, and the fifth instruction information is located in the SI / SIBx;

[0121] The fourth instruction information is located in the SIB1 or SI / SIBx, and the fifth instruction information is located in the PDCCH corresponding to the PDSCH.

[0122] In some embodiments, the UE determines whether to apply the fifth instruction indication information in the second channel transmitted before the downlink channel based on the fourth instruction information in the first channel transmitted before the downlink channel.

[0123] Exemplarily, for the repeated transmission of PDSCH x, the UE determines its repeated transmission situation according to one of the following.

[0124] The UE determines whether there is a fifth instruction message in PDSCH y or whether to apply the fifth instruction indication message in PDSCH y according to the fourth instruction message. The fourth instruction message exists in one or more of {MIB, PBCH, SIB1, SIBx}. The fifth instruction message is used to indicate whether PDSCH x is repeatedly transmitted. x is not equal to y.

[0125] The fourth instruction message at least includes: an applicable target set (such as a PDSCH name set, an RNTI type set), a repetition count set, and an association relationship set.

[0126] Any of the above sets can have only 1 element.

[0127] Any of the above sets can be predefined.

[0128] There is an association relationship between the downlink channel in the applicable target set (the downlink channel can also be denoted as the applicable target) and the repetition count in the repetition count set, and reference can be made to the above description for details.

[0129] The fifth instruction message in PDSCH y is used to indicate at least one of the following: at least one repeatedly transmitted PDSCH in the applicable target set, at least one repetition count in the repetition count set, and at least one association relationship in the association relationship set.

[0130] For example, if the fourth instruction message contains an applicable target set, the fifth instruction message is used to indicate at least one repeatedly transmitted PDSCH (or PDSCH name, PDSCH name index, RNTI type, RNTI type index) in the applicable target set.

[0131] If there is no fourth instruction message, or the fourth instruction message does not contain an applicable target set, the fifth instruction message is used to indicate at least one repeatedly transmitted PDSCH (or PDSCH name, PDSCH name index, RNTI type, RNTI type index).

[0132] If the applicable target set is a predefined set, the fifth instruction message indicates at least one PDSCH (or PDSCH name, PDSCH name index, RNTI type, RNTI type index) in the predefined set. If the predefined set contains only 1 element, the indication of at least one repeatedly transmitted PDSCH in the applicable target set in this fifth instruction message can be omitted.

[0133] If the fourth instruction message contains a repetition count set, the fifth instruction message is used to indicate selecting at least one repetition count or repetition count index from the set.

[0134] In the absence of the fourth instruction information, or if the fourth instruction information does not contain a set of repetition counts, the fifth instruction information is used to indicate at least one repetition count.

[0135] If the set of repetition counts is predefined, the fifth instruction information is used to indicate at least one repetition count or repetition count index in the predefined set. If the predefined set contains only one element, the indication of at least one repetition count or repetition count index in the predefined set in this fifth instruction information may be omitted.

[0136] If the fourth instruction information contains a set of associations between applicable targets and repetition counts, the fifth instruction information is used to indicate at least one association between an applicable target and a repetition count or an index of the association between an applicable target and a repetition count selected from the set.

[0137] In the absence of the fourth instruction information, or if the fourth instruction information does not contain a set of associations between applicable targets and repetition counts, the fifth instruction information indicates at least one association between an applicable target and a repetition count. At least the following methods are included:

[0138] There is an omitted 1-to-1. For example, if there is only one predefined or configured applicable target, the fifth instruction information may only indicate the repetition count. For example, if there is only one predefined or configured repetition count, the fifth instruction information may only indicate the applicable target.

[0139] There is an omitted N-to-1. For example, if there are at least one predefined or configured applicable targets and they all use the same repetition count, the fifth instruction information may only indicate the repetition count.

[0140] 1-to-1, {applicable target, repetition count}.

[0141] N-to-1, {N applicable targets, 1 repetition count}, N >= 1.

[0142] N-to-N, {N applicable targets, N repetition counts}, the applicable targets and repetition counts are in one-to-one correspondence in order.

[0143] N-to-N, N groups of correspondences, {[applicable target 1, repetition count 1], [applicable target 2, repetition count 2]... [applicable target N, repetition count N]}.

[0144] N-to-M, N applicable targets, M repetition counts, grouping multiple usage targets with the same repetition count together, {[repetition count 1], [applicable target 1, applicable target 2]} + {[repetition count 2], [applicable target 3, applicable target 4, applicable target 5]} +... + {[repetition count M], [applicable target N]}.

[0145] If the association relationship between the applicable target and the number of repetitions is a predefined association relationship set, the fifth instruction information indicates at least one association relationship between the applicable target and the number of repetitions or the association relationship index between the applicable target and the number of repetitions in the predefined association relationship set. If the predefined set contains only 1 element, this fifth instruction information is used to indicate that at least one association relationship in the association relationship set can be omitted.

[0146] In some embodiments, based on the sixth instruction information (which can also be referred to as a flag bit, etc.) in the first channel transmitted before the downlink channel, it is determined whether to apply the second instruction information (which can also be referred to as indication information, configuration information, etc.) in the second channel transmitted before the downlink channel or the control channel corresponding to the downlink channel; or based on the sixth instruction information in the first channel transmitted before the downlink channel, it is determined whether there is second instruction information in the second channel transmitted before the downlink channel or the control channel corresponding to the downlink channel.

[0147] In the case of determination being yes, based on the second instruction information, the repeated transmission information of the downlink channel is determined.

[0148] Wherein, the second instruction information at least includes at least one of the following: applicable target set, applicable target index, number of repetitions set, number of repetitions index, association relationship set, association relationship index; the applicable target set includes at least one downlink channel for repeated transmission, the applicable target index is used to determine at least one downlink channel for repeated transmission in the applicable target set, the number of repetitions set includes at least one number of repetitions, the number of repetitions index is used to determine at least one number of repetitions in the number of repetitions set, the association relationship set contains the association relationship between at least one downlink channel for repeated transmission and the number of repetitions, and the association relationship index is used to determine the association relationship in the association relationship set.

[0149] The number of repetitions index indicates the application of a certain number of repetitions in a set of numbers of repetitions. If the second instruction information includes the number of repetitions index, there needs to be a corresponding set of numbers of repetitions so as to obtain the number of repetitions from the set of numbers of repetitions based on the number of repetitions index. Among them, this set of numbers of repetitions can be predefined or carried in the second instruction information. The set of numbers of repetitions can have only 1 element.

[0150] In some embodiments, the first channel is located before the second channel.

[0151] Exemplarily, for SI / SIBx repeated transmission, the sixth instruction information and the second instruction information satisfy one of the following conditions:

[0152] The sixth instruction information is located in the MIB or PBCH, and is used to determine whether there is second instruction information in SIB1 or SIBy;

[0153] The sixth instruction information is located in the MIB or PBCH, and is used to determine whether to apply the second instruction information in SIB1 or SIBy;

[0154] The sixth instruction information is located in SIB1 or SIBy, and is used to determine whether there is second instruction information in the PDCCH corresponding to SI / SIBx;

[0155] The sixth instruction information is located in SIBy, and is used to determine whether to apply the second instruction information in SIBn.

[0156] Wherein, y is an integer greater than 1 and not equal to x, and n is an integer not equal to x. The second instruction information at least includes at least one of the following: SI / SIBx set, repetition count set, repetition count index. The SI / SIBx set is used to determine at least one SI / SIBx for repeated transmission, and the repetition count set includes at least one repetition count.

[0157] In this example, the second instruction information at least includes at least one of the following:

[0158] (1) The applicable target for repeated transmission, including at least one SI / SIBx. If the SI / SIBx is predefined, this indication may be omitted.

[0159] (2) Repetition count, or repetition count index.

[0160] The repetition count index indicates to apply a certain repetition count in a repetition count set. The predefined repetition count set may have only 1 element.

[0161] If the repetition count index is included, the repetition count must have a corresponding predefined set. The set may have only 1 element.

[0162] (3) Repetition count set. The set may have only 1 element.

[0163] (4) The association relationship between the applicable target and the repetition count. Specifically, reference can be made to the above description.

[0164] Another exemplary case is that for the repeated transmission of PDSCH, the placement of the sixth instruction information and the second instruction information is one of the following:

[0165] The sixth instruction information is located in the MIB or PBCH, and is used to determine whether there is second instruction information in the PDCCH corresponding to SIB1 or SIBx or PDSCH;

[0166] The sixth instruction information is located in the MIB or PBCH, and the sixth instruction information is used to determine whether to apply the second instruction information in SIB1 or SIBx;

[0167] The sixth instruction information is located in SIB1, and the sixth instruction information is used to determine whether there is second instruction information in the PDCCH corresponding to SIBx or PDSCH;

[0168] The sixth instruction information is located in SIB1, and the sixth instruction information is used to determine whether to apply the second instruction information in SIBx;

[0169] The sixth instruction information is located in SIBx, and the sixth instruction information is used to determine whether there is second instruction information in the PDCCH corresponding to SIBy or PDSCH;

[0170] The sixth instruction information is located in SIBx, and the sixth instruction information is used to determine whether to apply the second instruction information in SIBy.

[0171] Wherein, y is an integer greater than 1 and not equal to x, and n is an integer not equal to x.

[0172] In this example, the second instruction information may at least include at least one of the following: applicable target set, repetition count set, repetition count index, association relationship set.

[0173] For example, the applicable targets at least include: PDSCH name, RNTI type. If the PDSCH name is predefined, this indication may be omitted. If the RNTI type is predefined, this indication may be omitted. If a repetition count index is included, there must be a corresponding predefined set for the repetition count. The set may have only 1 element. If a repetition count set is included, the repetition count set may have only 1 element. The association relationship set may refer to the description above.

[0174] Exemplarily, for PDSCH x, retransmission is performed. The UE specifically determines the PDSCH x retransmission information based on the following:

[0175] The UE determines whether there is second instruction information in PDSCH y or whether to apply the second instruction information in PDSCH y according to the sixth instruction information. The sixth instruction information exists in one or more of {MIB, PBCH, SIB1, SIBx}. The second instruction information is used to indicate whether PDSCH x is retransmitted. x is not equal to y.

[0176] Wherein, the second instruction information at least includes at least one of the following: applicable target set, applicable target index, repetition count set, repetition count index, association relationship set, association relationship index.

[0177] For example, if there is a predefined set of PDSCH names, the second instruction information may indicate at least one of the PDSCH names or PDSCH name indexes. If the predefined set of PDSCH names has only one element, this second instruction information may be omitted.

[0178] If there is a predefined set of RNTI types, the second instruction information may indicate at least one of the RNTI types or RNTI type indexes. If the predefined RNTI type has only one element, this indication may be omitted.

[0179] If there is a predefined set of repetition times, the second instruction information may indicate at least one of the repetition times or repetition time indexes. If the predefined set of repetition times has only one element, this indication may be omitted.

[0180] If there is a set of association relationships, the second instruction information may indicate an association relationship or an association relationship index for selecting at least one applicable target and repetition times from the set. The specific set of association relationships between applicable targets and repetition times can refer to the description above.

[0181] If there is no set of association relationships, the second instruction information indicates an association relationship for at least one applicable target and repetition times. It includes at least the following methods:

[0182] There is an omitted 1-to-1. For example, if there is only one predefined or configured applicable target, only the repetition times may be included. For example, if there is only one predefined or configured repetition time, only the applicable target may be included.

[0183] There is an omitted N-to-1. For example, if there are at least one predefined or configured applicable targets and all use the same repetition time, only the repetition time may be included.

[0184] 1-to-1, {1 applicable target, 1 repetition time};

[0185] N-to-1, {N applicable targets, 1 repetition time}, where N >= 1 in this example;

[0186] N-to-N, {N applicable targets, N repetition times}, the applicable targets and repetition times correspond one by one in order;

[0187] N-to-N, N groups of correspondences, {[applicable target 1, repetition time 1], [applicable target 2, repetition time 2]... [applicable target N, repetition time N]};

[0188] N-to-M, where there are N applicable targets and M repetition times. Multiple usage targets with the same repetition times are grouped together, where M is greater than or equal to N. For example, {

Repetition times 1

Applicable target 1, Applicable target 2

Repetition times 2

Applicable target 3, Applicable target 4, Applicable target 5

Repetition times M

Applicable target N

[0189] If the association relationship between the applicable target and the repetition times is a predefined association relationship set, the second instruction information indicates at least one association relationship between the applicable target and the repetition times or the association relationship index between the applicable target and the repetition times in the predefined association relationship set. If the predefined association relationship set contains only 1 element, this indication can be omitted.

[0190] In some embodiments, based on the seventh instruction information in the first channel transmitted before the downlink channel, it is determined whether there is fourth instruction information in the second channel transmitted before the downlink channel or whether to apply the fourth instruction information in the second channel transmitted before the downlink channel; the fourth instruction information includes at least one of the following: a set of applicable targets, a set of repetition times, and a set of association relationships. The set of applicable targets includes at least one downlink channel for repeated transmission, the set of repetition times includes at least one repetition time, and the set of association relationships includes the association relationship between at least one downlink channel for repeated transmission and the repetition times.

[0191] In the case of determination being yes, based on the fourth instruction information and the fifth instruction information in the control channel corresponding to the downlink channel, the repeated transmission information of the downlink channel is determined; the fifth instruction information is at least used to indicate at least one of the following: at least one downlink channel for repeated transmission in the set of applicable targets, at least one repetition time in the set of repetition times, and at least one association relationship in the set of association relationships.

[0192] It can be understood that the set of applicable targets can be a set of downlink channel names or a set of RNTI types (or a set of RNTI type indexes). For example, the SI / SIBx set (or the SI / SIBx index set), the PDSCH name set (or the PDSCH index set). The set of applicable targets and / or the set of repetition times can have only 1 element. The association relationship between the downlink channels (the downlink channels can also be denoted as applicable targets) in the set of applicable targets and the repetition times in the set of repetition times can refer to the above description.

[0193] In some embodiments, when the fourth instruction information includes an applicable target set (e.g., SI / SIBx set, PDSCH name set, RNTI type set), the fifth instruction information can be used to indicate at least one repeated transmission downlink channel in the applicable target set (e.g., the fifth instruction information includes SI / SIBx, PDSCH name, PDSCH name index, RNTI type, RNTI type index). When the fourth instruction information does not include an applicable target set (e.g., SI / SIBx set), the fifth instruction information can be used to indicate at least one repeated transmission downlink channel in a predefined applicable target set (e.g., SI / SIBx). If the applicable target set or the predefined applicable target set contains only one element, the fifth instruction information can indicate only one repetition number or repetition number index in the repetition number set, or the fifth instruction information can be omitted.

[0194] In some embodiments, when the fourth instruction information includes a repetition number set, the fifth instruction information can be used to indicate at least one repetition number or repetition number index in the repetition number set. When the fourth instruction information does not include an applicable repetition number set, the fifth instruction information can be used to indicate at least one repetition number or repetition number index in a predefined repetition number set. If the repetition number set or the predefined repetition number set contains only one element, the fifth instruction information can be omitted.

[0195] In some embodiments, the first channel is located before the second channel.

[0196] Exemplarily, for SI / SIBx retransmission, it is determined according to one of the following:

[0197] (1) The UE determines based on the seventh instruction information in the MIB or PBCH, and the seventh instruction information is used to determine whether there is fourth instruction information in SIB1 or SIBy.

[0198] If it is determined that there is fourth instruction information in SIB1 or SIBy, the UE determines the SI / SIBx retransmission information based on the fourth instruction information and the fifth instruction information in the SI / SIBx corresponding PDCCH.

[0199] If it is determined that there is no fourth instruction information, the UE determines that there is no such fifth instruction information in the SI / SIBx corresponding PDCCH, or the indication in the SI / SIBx corresponding PDCCH is invalid. y is not equal to x.

[0200] (2) The UE determines according to the seventh instruction information in the MIB or PBCH, and the seventh instruction information is used to determine whether to apply the fourth instruction information in SIB1 or SIBy.

[0201] If it is determined to apply, the UE determines that there is fifth instruction information in the PDCCH corresponding to the SI / SIBx or applies the fifth instruction information in the PDCCH corresponding to the SI / SIBx. The UE determines the retransmission information of the SI / SIBx based on the fourth instruction information and the fifth instruction information in the PDCCH corresponding to the SI / SIBx.

[0202] If it is determined not to apply, the UE determines that the fifth instruction information does not exist in the PDCCH corresponding to the SI / SIBx, or the fifth instruction information in the PDCCH corresponding to the SI / SIBx is invalid. y is not equal to x.

[0203] Among them, the fourth instruction information in this example at least includes: the applicable targets of retransmission, at least including: the SI / SIBx set; the repetition times set; any of the above sets can have only 1 element. The association relationship between the applicable target and the repetition times can specifically refer to the above description.

[0204] The fifth instruction information in this example can at least include at least one of the following:

[0205] The applicable targets of retransmission:

[0206] If the applicable targets of retransmission are included in the fourth instruction information, the fifth instruction information indicates to select at least one SI / SIBx or the index of at least one SI / SIBx from the set. If the applicable targets of retransmission are not included in the fourth instruction information, the fifth instruction information indicates at least one SI / SIBx. If the SI / SIBx set is predefined, the fifth instruction information indicates at least one SI / SIBx or SI / SIBx index in the predefined set. If the predefined set has only 1 element, this indication can be omitted.

[0207] The repetition times, or the repetition times index:

[0208] If the repetition times set is included in the fourth instruction information, the fifth instruction information indicates to select at least one repetition times or repetition times index from the set.

[0209] If the repetition times set is not included in the fourth instruction information, the fifth instruction information indicates at least one repetition times.

[0210] If the repetition times set is predefined, the fifth instruction information indicates at least one repetition times or repetition times index in the predefined set. If the predefined set has only 1 element, this indication can be omitted.

[0211] The association relationship between the applicable target and the repetition times:

[0212] If the fourth instruction information contains a set of associations between applicable targets and repetition counts, the fifth instruction information indicates to select at least one association between an applicable target and a repetition count or an index of the association between an applicable target and a repetition count from the set.

[0213] If the fourth instruction information does not contain a set of associations between applicable targets and repetition counts, the fifth instruction information indicates at least one association between an applicable target and a repetition count. At least the following methods are included:

[0214] There is an omitted 1-to-1. For example, if there is only one predefined or configured applicable target, only the repetition count may be included. For example, if there is only one predefined or configured repetition count, only the applicable target may be included.

[0215] There is an omitted N-to-1. For example, if there are at least one predefined or configured applicable targets and the same repetition count is used for all of them, only the repetition count may be included.

[0216] 1-to-1, {1 applicable target, 1 repetition count};

[0217] N-to-1, {N applicable targets, 1 repetition count}, where N >= 1 in this example;

[0218] N-to-N, {N applicable targets, N repetition counts}, where the applicable targets and repetition counts correspond one by one in order;

[0219] N-to-N, N groups of correspondences, {[applicable target 1, repetition count 1], [applicable target 2, repetition count 2]... [applicable target N, repetition count N]};

[0220] N-to-M, N applicable targets, M repetition counts, grouping multiple usage targets with the same repetition count together, where M is greater than or equal to N. For example, {[repetition count 1], [applicable target 1, applicable target 2]} + {[repetition count 2], [applicable target 3, applicable target 4, applicable target 5]} +... + {[repetition count M], [applicable target N]}.

[0221] If the association between an applicable target and a repetition count is a predefined set, the fifth instruction information indicates at least one association between an applicable target and a repetition count or an index of the association between an applicable target and a repetition count in the predefined set. If the predefined set contains only 1 element, this indication may be omitted.

[0222] Exemplarily, for the repeated transmission of PDSCH, it is determined according to one of the following:

[0223] (1) The UE determines according to the seventh instruction information in the MIB or PBCH, where the seventh instruction information indicates whether there is fourth instruction information in SIB1 or SIBx. If there is the fourth instruction information, there is fifth instruction information in the PDCCH corresponding to the PDSCH to indicate one of the options in the configuration. If there is no such fourth instruction information, there is no such fifth instruction information in the PDCCH corresponding to the PDSCH, or the indication is invalid.

[0224] (2) The UE determines according to the seventh instruction information in the MIB or PBCH, where the seventh instruction information indicates whether to apply the fourth instruction information in SIB1 or SIBx. If the fourth instruction information is applied, there is fifth instruction information in the PDCCH corresponding to the common PDSCH to indicate one of the options in the fourth instruction information. If the fourth instruction information is not applied, there is no such fifth instruction information in the PDCCH corresponding to the PDSCH, or the indication is invalid.

[0225] (3) The UE determines according to the seventh instruction information in SIB1 to indicate whether there is fourth instruction information in SIBx. If there is the fourth instruction information, there is fifth instruction information in the PDCCH corresponding to the PDSCH to indicate one of the options in the configuration. If there is no such fourth instruction information, there is no such fifth instruction information in the PDCCH corresponding to the PDSCH, or the indication is invalid.

[0226] (4) The UE determines according to the seventh instruction information in SIB1, where the seventh instruction information indicates whether to apply the fourth instruction information in SIB1 or SIBx. If the fourth instruction information is applied, there is fifth instruction information in the PDCCH corresponding to the PDSCH to indicate one of the options in the fourth instruction information. If the fourth instruction information is not applied, there is no such fifth instruction information in the PDCCH corresponding to the PDSCH, or the fifth instruction information is invalid.

[0227] Wherein, in this example, the fourth instruction information may at least include at least one of the following: applicable target set (such as PDSCH name set, RNTI type set), repetition times set, association relationship set (specifically, reference can be made to the above description). And any set may have only one element.

[0228] When the fourth instruction information includes the applicable target set, at least one PDSCH name, PDSCH name index, RNTI type, and RNTI type index can be selected from the set based on the fifth instruction information.

[0229] If the applicable target set is not included in the fourth instruction information, the fifth instruction information can indicate at least one PDSCH name and RNTI type.

[0230] If the applicable target set is a predefined set, the fifth instruction information may indicate at least one PDSCH name, PDSCH name index, RNTI type, and RNTI type index in the predefined set. If the predefined set contains only one element, this fifth instruction information may be omitted.

[0231] If the fourth instruction information contains a set of repetition counts, the fifth instruction information selects at least one repetition count or repetition count index from the set.

[0232] If the fourth instruction information does not contain a set of repetition counts, the fifth instruction information indicates at least one repetition count.

[0233] If the set of repetition counts is predefined, the fifth instruction information indicates at least one repetition count or repetition count index in the predefined set. If the predefined set contains only one element, this indication information field may be omitted.

[0234] Among them, if the fourth instruction information contains a set of associations between the downlink channels in the applicable target set and the repetition counts in the set of repetition counts, at least one association between the applicable target and the repetition count or an index of the association between the applicable target and the repetition count is selected from the set.

[0235] If the fourth instruction information does not contain a set of associations between the downlink channels in the applicable target set and the repetition counts in the set of repetition counts, the fifth instruction information needs to indicate at least one association between the downlink channel and the repetition count. At least the following methods are included:

[0236] There is an omitted 1-to-1. For example, if there is only one predefined or configured applicable target, only the repetition count may be included. For example, if there is only one predefined or configured repetition count, only the applicable target may be included.

[0237] There is an omitted N-to-1. For example, if there are at least one predefined or configured applicable targets and the same repetition count is used for all of them, only the repetition count may be included.

[0238] 1-to-1, {1 applicable target, 1 repetition count};

[0239] N-to-1, {N applicable targets, 1 repetition count}, where N >= 1 in this example;

[0240] N-to-N, {N applicable targets, N repetition counts}, with the applicable targets and repetition counts corresponding one by one in order;

[0241] N-to-N, corresponding in N groups, {

Applicable target 1, number of repetitions 1

Applicable target 2, number of repetitions 2

Applicable target N, number of repetitions N

[0242] N-to-M, N applicable targets, M numbers of repetitions, grouping multiple usage targets with the same number of repetitions together, where M is greater than or equal to N. For example, {

Number of repetitions 1

Applicable target 1, applicable target 2

Number of repetitions 2

Applicable target 3, applicable target 4, applicable target 5

Number of repetitions M

Applicable target N

[0243] If the association relationship between the following downlink channel and the number of repetitions is a predefined set, then the fifth instruction information indicates the association relationship between at least one downlink channel and the number of repetitions or the association relationship index between the downlink channel and the number of repetitions in the predefined set. If the predefined set contains only 1 element, this indication can be omitted.

[0244] Based on this, when enhancing coverage through repeated transmission of the downlink channel, the terminal can timely and accurately learn the repeated transmission information of the downlink channel, reduce the unnecessary listening time for the downlink channel, and reduce the power consumption of the terminal. At the same time, when the terminal can accurately determine the repeated transmission information of the downlink channel, even in a harsh communication environment, it can maintain a high communication success rate.

[0245] The above mainly introduces the solution of the embodiments of the present disclosure from the perspective of the method. The following also shows a signal repeated transmission determination device for executing the signal repeated transmission determination method in any of the above embodiments and its possible implementation manners. It can be understood that in order to implement the signal repeated transmission determination method, the signal repeated transmission determination device includes the corresponding hardware structure and / or software module for executing each function; those skilled in the art should easily realize that, combined with the algorithm steps of each example described in the embodiments of the present disclosure, the present disclosure can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving the hardware depends on the specific application and design constraint conditions of the technical solution. Professional technicians can use different methods to implement the described function for each specific application, but this implementation should not be considered to exceed the scope of the present disclosure.

[0246] Embodiments of the present disclosure may divide the signal repeated transmission determination device into functional modules according to the above method embodiments. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one functional module. The above integrated module may be implemented in the form of hardware or in the form of software. It should be noted that the division of modules in the embodiments of the present disclosure is illustrative, only a logical function division, and there may be other division methods in actual implementation. The following takes the example of dividing each functional module corresponding to each function for illustration.

[0247] Figure 3 This is a signal repeated transmission determination device provided by an embodiment of the present disclosure, which is applied to a first node. The signal repeated transmission determination device 300 includes: a processing module 301.

[0248] The processing module 301 is configured to determine repeated transmission information of a downlink channel based on predefined information and / or instruction information; the instruction information is located in at least one of the following: a channel transmitted before the downlink channel, a physical downlink control channel corresponding to the downlink channel.

[0249] In some embodiments, the downlink channel is one of the following: system information, system information block 1, system information block x, physical downlink shared channel; where x is an integer greater than 1.

[0250] In some embodiments, the repeated transmission information at least includes the repeated transmission times of the downlink channel.

[0251] In some embodiments, the processing module 301 is configured to determine whether the repeated transmission times of the downlink channel is a default value in a predefined repeated times set based on first instruction information.

[0252] In some embodiments, the processing module 301 is configured to determine the repeated transmission times of the downlink channel based on second instruction information, and the second instruction information at least includes at least one of the following: a repeated times set, a repeated times index, an applicable target set, an applicable target index, an association relationship set, an association relationship index; the repeated times set includes at least one repeated times, the repeated times index is used to determine the repeated times in the repeated times set, the applicable target set includes at least one downlink channel for repeated transmission, the applicable target index is used to determine the downlink channel for repeated transmission in the applicable target set, the association relationship set includes an association relationship between at least one downlink channel for repeated transmission and the repeated times, and the association relationship index is used to determine the association relationship in the association relationship set.

[0253] In some embodiments, the processing module 301 is configured to determine the number of retransmissions of the downlink channel based on third instruction information included in a channel transmitted before the downlink channel, where the third instruction information is used to indicate that the number of retransmissions of the downlink channel is the same as the number of retransmissions of the channel transmitted before the downlink channel.

[0254] In some embodiments, the processing module 301 is configured to determine the retransmission information of the downlink channel based on fourth instruction information and fifth instruction indication information; the fourth instruction information includes at least one of the following at least: an applicable target set, a set of retransmission times, an association relationship set, the applicable target set includes at least one downlink channel for retransmission, the set of retransmission times includes at least one retransmission time, and the association relationship set includes an association relationship between at least one downlink channel for retransmission and the retransmission times; the fifth instruction information is at least used to indicate at least one of the following at least: at least one downlink channel for retransmission in the applicable target set, at least one retransmission time in the set of retransmission times, and at least one association relationship in the association relationship set.

[0255] In some embodiments, the fourth instruction information is located in a first channel transmitted before the downlink channel, and the fifth instruction information is located in a second channel transmitted before the downlink channel; or, the fourth instruction information is located in a channel transmitted before the downlink channel, and the fifth instruction information is located in a physical downlink control channel corresponding to the downlink channel.

[0256] In some embodiments, the processing module 301 is configured to determine whether to apply second instruction information in a second channel transmitted before the downlink channel or a control channel corresponding to the downlink channel based on sixth instruction information in a first channel transmitted before the downlink channel; or determine whether there is second instruction information in a second channel transmitted before the downlink channel or a control channel corresponding to the downlink channel based on sixth instruction information in a first channel transmitted before the downlink channel;

[0257] The processing module 301 is further configured to, in the case of determination being yes, determine the retransmission information of the downlink channel based on the second instruction information;

[0258] Wherein, the second instruction information includes at least one of the following at least: an applicable target set, an applicable target index, a set of retransmission times, a retransmission time index, an association relationship set, an association relationship index; the applicable target set includes at least one downlink channel for retransmission, the applicable target index is used to determine at least one downlink channel for retransmission in the applicable target set, the set of retransmission times includes at least one retransmission time, the retransmission time index is used to determine the retransmission time in the set of retransmission times, the association relationship set includes an association relationship between at least one downlink channel for retransmission and the retransmission times, and the association relationship index is used to determine the association relationship in the association relationship set.

[0259] In some embodiments, the first channel is located before the second channel.

[0260] In some embodiments, the processing module 301 is configured to determine whether there is fourth instruction information in the second channel transmitted before the downlink channel or whether to apply the fourth instruction information in the second channel transmitted before the downlink channel based on the seventh instruction information in the first channel transmitted before the downlink channel; the fourth instruction information includes at least one of the following: an applicable target set, a repetition times set, an association relationship set, the applicable target set includes at least one downlink channel for repeated transmission, the repetition times set includes at least one repetition times, and the association relationship set includes the association relationship between at least one downlink channel for repeated transmission and the repetition times;

[0261] The processing module 301 is configured to, when it is determined to be yes, determine the repeated transmission information of the downlink channel based on the fourth instruction information and the fifth instruction information in the control channel corresponding to the downlink channel; the fifth instruction information is at least used to indicate at least one of the following: at least one downlink channel for repeated transmission in the applicable target set, at least one repetition times in the repetition times set, and at least one association relationship in the association relationship set.

[0262] In some embodiments, the first channel is located before the second channel.

[0263] In some embodiments, there is an association relationship between the downlink channels in the applicable target set and the repetition times in the repetition times set.

[0264] When the functions of the above integrated modules are implemented in the form of hardware, embodiments of the present disclosure further provide a possible structure of a communication device, and the communication device is used to execute the signal repeated transmission determination method provided by the embodiments of the present disclosure. As Figure 4 shown, the communication device 400 includes: a communication interface 403, a processor 402, and a bus 404. Optionally, the communication device may further include a memory 401.

[0265] The processor 402 may be a logic block, module, and circuit that implements or executes various exemplary ones described in conjunction with the embodiments of the present disclosure. The processor 402 may be a central processing unit, a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field-programmable gate array, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute various exemplary logic blocks, modules, and circuits described in conjunction with the embodiments of the present disclosure. The processor 402 may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, etc.

[0266] A communication interface 403 for connecting to other devices via a communication network. The communication network can be an Ethernet, a radio access network, a wireless local area network (WLAN), etc.

[0267] A memory 401 can be a read-only memory (ROM) or other types of static storage devices that can store static information and instructions, a random access memory (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium, or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto.

[0268] As a possible implementation, the memory 401 can exist independently of the processor 402. The memory 401 can be connected to the processor 402 via a bus 404 for storing instructions or program code. When the processor 402 calls and executes the instructions or program code stored in the memory 401, the signal repetition transmission determination method provided by the embodiments of the present disclosure can be implemented.

[0269] In another possible implementation, the memory 401 can also be integrated with the processor 402.

[0270] The bus 404 can be an extended industry standard architecture (EISA) bus, etc. The bus 404 can be divided into an address bus, a data bus, a control bus, etc. For the sake of simplicity of representation, Figure 4 only a thick line is used to represent it in the figure, but it does not mean that there is only one bus or one type of bus.

[0271] Some embodiments of the present disclosure provide a computer-readable storage medium (e.g., a non-transitory computer-readable storage medium) storing computer program instructions. When the computer program instructions run on a computer, the computer is caused to execute the signal repetition transmission determination method described in any one of the above embodiments.

[0272] In an exemplary implementation, the computer can be the above-mentioned signal repetition transmission determination device, and the specific form of the computer is not limited in the present disclosure.

[0273] In some examples, the computer-readable storage medium may include, but is not limited to: magnetic storage devices (such as hard disks, floppy disks, or magnetic tapes, etc.), optical discs (such as compact disks (CDs), digital versatile disks (DVDs), etc.), smart cards, and flash memory devices (such as erasable programmable read-only memories (EPROMs), cards, sticks, or key drives, etc.). The various computer-readable storage media described in this disclosure may represent one or more devices and / or other machine-readable storage media for storing information. The term "machine-readable storage medium" may include, but is not limited to, wireless channels and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0274] An embodiment of the present disclosure provides a computer program product containing instructions. When the computer program product runs on a computer, it causes the computer to execute the signal repeated transmission determination method described in any one of the above embodiments.

[0275] As described above, the above is only the specific implementation manner of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present disclosure should be covered by the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the protection scope of the claims.

Claims

1. A method for determining signal repetition transmission, characterized in that: The method comprises: Based on predefined information and / or instruction information, the repeated transmission information of the downlink channel is determined; the instruction information is located in at least one of the following: a channel previously transmitted by the downlink channel, and a physical downlink control channel corresponding to the downlink channel.

2. The method according to claim 1, characterized in that The downlink channel is one of the following: system information, system information block 1, system information block x, and physical downlink shared channel; wherein x is an integer greater than 1.

3. The method according to claim 1, characterized in that The repetition transmission information at least includes the number of repetition transmissions of the downlink channel.

4. The method according to claim 1, characterized in that: The instruction information includes first instruction information, and the determining, based on the instruction information, the repeated transmission information of the downlink channel includes: Based on the first instruction information, it is determined whether the number of repeated transmissions of the downlink channel is a default value in a predefined number of repeated transmissions set.

5. The method according to claim 1, characterized in that The instruction information includes second instruction information, and the determining, based on the instruction information, the repeated transmission information of the downlink channel includes: Based on the second instruction information, the number of repeated transmissions of the downlink channel is determined, and the second instruction information includes at least one of the following: a repetition number set, a repetition number index, an applicable target set, an applicable target index, an association relationship set, and an association relationship index; the repetition number set includes at least one repetition number, and the repetition number index is used to determine at least one repetition number in the repetition number set, the applicable target set includes at least one repeatedly transmitted downlink channel, and the applicable target index is used to determine the repeatedly transmitted downlink channel in the applicable target set, the association relationship set contains an association relationship between at least one repeatedly transmitted downlink channel and the repetition number, and the association relationship index is used to determine the association relationship in the association relationship set.

6. The method according to claim 1, characterized in that The instruction information includes third instruction information, and the determining, based on the instruction information, the repeated transmission information of the downlink channel includes: The number of repeated transmissions of the downlink channel is determined based on the third instruction information included in the channel transmitted before the downlink channel, wherein the third instruction information is used to indicate that the number of repeated transmissions of the downlink channel is the same as the number of repeated transmissions of the channel transmitted before the downlink channel.

7. The method according to claim 1, characterized in that The instruction information includes fourth instruction information and fifth instruction information, and determining the repeated transmission information of the downlink channel based on the instruction information includes: Based on the fourth instruction information and the fifth instruction indication information, the repeated transmission information of the downlink channel is determined; the fourth instruction information includes at least one of the following: an applicable target set, a repetition number set, and an association relationship set, the applicable target set includes at least one downlink channel for repeated transmission, the repetition number set includes at least one repetition number, and the association relationship set contains at least one downlink channel for repeated transmission and an association relationship between the repetition numbers; the fifth instruction information is used to indicate at least one of the following: at least one downlink channel for repeated transmission in the applicable target set, at least one repetition number in the repetition number set, and at least one association relationship in the association relationship set.

8. The method according to claim 7, characterized in that The fourth instruction information is located in the first channel transmitted before the downlink channel, and the fifth instruction information is located in the second channel transmitted before the downlink channel; or, the fourth instruction information is located in the channel transmitted before the downlink channel, and the fifth instruction information is located in the physical downlink control channel corresponding to the downlink channel.

9. The method according to claim 1, characterized in that: The instruction information includes sixth instruction information and second instruction information, and determining the repeated transmission information of the downlink channel based on the instruction information includes: Determine whether to apply the second instruction information in the second channel transmitted before the downlink channel or in the control channel corresponding to the downlink channel based on the sixth instruction information in the first channel transmitted before the downlink channel; or determine whether there is second instruction information in the second channel transmitted before the downlink channel or in the control channel corresponding to the downlink channel based on the sixth instruction information in the first channel transmitted before the downlink channel; If it is determined to be yes, determining the repeated transmission information of the downlink channel based on the second instruction information; Among them, the second instruction information includes at least one of the following: an applicable target set, an applicable target index, a repetition number set, a repetition number index, an association relationship set, and an association relationship index; the applicable target set includes at least one downlink channel for repeated transmission, the applicable target index is used to determine at least one downlink channel for repeated transmission in the applicable target set, the repetition number set includes at least one repetition number, the repetition number index is used to determine at least one repetition number in the repetition number set, the association relationship set contains an association relationship between at least one downlink channel for repeated transmission and a repetition number, and the association relationship index is used to determine the association relationship in the association relationship set.

10. The method according to claim 9, characterized in that The first channel is located before the second channel.

11. The method according to claim 1, characterized in that: The instruction information includes seventh instruction information, fourth instruction information and fifth instruction information, and determining the repeated transmission information of the downlink channel based on the instruction information includes: Based on the seventh instruction information in the first channel transmitted before the downlink channel, determine whether the second channel transmitted before the downlink channel has the fourth instruction information or whether to apply the fourth instruction information in the second channel transmitted before the downlink channel; the fourth instruction information includes at least one of the following: an applicable target set, a repetition number set, and an association relationship set, the applicable target set includes at least one repeatedly transmitted downlink channel, the repetition number set includes at least one repetition number, and the association relationship set includes an association relationship between at least one repeatedly transmitted downlink channel and the repetition number; If the determination is yes, the repeated transmission information of the downlink channel is determined based on the fourth instruction information and the fifth instruction information in the control channel corresponding to the downlink channel; the fifth instruction information is used to indicate at least one of the following: at least one repeatedly transmitted downlink channel in the applicable target set, at least one repetition number in the repetition number set, and at least one association relationship in the association relationship set.

12. The method according to claim 11, characterized in that The first channel is located before the second channel.

13. The method according to any one of claims 5, 7, 9 and 11, characterized in that There is a correlation between the downlink channels in the applicable target set and the repetition times in the repetition times set.

14. A communication device, characterized in that: include: Memory and processor; Memory and processor coupling; The memory is used to store instructions executable by the processor; When the processor executes the instructions, the method according to any one of claims 1 to 13 is performed.

15. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer instructions, and when the computer instructions are executed on a communication device, the communication device is caused to execute the method according to any one of claims 1 to 13.

16. A computer program product, characterized in that When the computer program product is executed, the method according to any one of claims 1 to 13 is implemented.

Images