Repeated signal transmission determination method, communication apparatus, storage medium, and program product

Abstract

The present disclosure provides a repeated signal transmission determination method, a communication apparatus, a storage medium, and a program product. The repeated signal transmission determination method comprises: determining repeated transmission information of a downlink channel based on predefined information and / or instruction information, the instruction information being located in least one of the following: a channel previously transmitted by the downlink channel, and a physical downlink control channel corresponding to the downlink channel.

Description

Method for determining signal repetition transmission, communication device, storage medium, and program product

[0001] The present disclosure claims priority to Chinese Patent Application No. 202410662921.8, filed on May 24, 2024, the entire contents of which are incorporated herein by reference. TECHNICAL FIELD

[0002] The present disclosure relates to the field of communication technology, and in particular, to a method for determining signal repetition transmission, a communication device, a storage medium, and a program product. BACKGROUND

[0003] In a non-terrestrial network (NTN) scenario, due to the limited link budget of satellite transmission power and propagation loss, link-level enhancement of the downlink channel is an effective method to improve coverage. Link-level enhancement can use repetition transmission to accumulate time-domain energy and improve the link budget margin. Some downlink channels are monitored by non-connected terminal devices, and provide key information for terminal devices to access the network and maintain correct downlink synchronization. SUMMARY

[0004] In an aspect, a method for determining signal repetition transmission is provided. The method includes:

[0005] determining repetition 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, and a physical downlink control channel corresponding to the downlink channel.

[0006] In another aspect, a device for determining signal repetition transmission is provided. The device includes:

[0007] a processing module configured to determine repetition 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, and a physical downlink control channel corresponding to the downlink channel.

[0008] In yet another aspect, a communication device is provided. The communication device includes a memory and a processor; the memory and the processor are coupled; the memory is configured to store computer program instructions executable by the processor; and the processor, when executing the computer program instructions, implements the method for determining signal repetition transmission described in the above aspect.

[0009] In yet another aspect, a computer readable storage medium is provided. The computer readable storage medium stores computer program instructions which, when executed on a computer (e.g., a communication device or a signal repetition transmission determination device), implement the signal repetition transmission determination method according to the above aspect.

[0010] In yet another aspect, a computer program product is provided. The computer program product includes computer program instructions which, when executed, implement the signal repetition transmission determination method according to the above aspect. BRIEF DESCRIPTION OF DRAWINGS

[0011] FIG. 1 is a schematic diagram of an architecture of an NTN communication system according to an embodiment of the present disclosure.

[0012] FIG. 2 is a flowchart of a signal repetition transmission determination method according to an embodiment of the present disclosure.

[0013] FIG. 3 is a schematic diagram of another structure of a signal repetition transmission determination device according to an embodiment of the present disclosure.

[0014] FIG. 4 is a schematic diagram of a structure of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solutions of the embodiments of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, not all the embodiments. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present disclosure.

[0016] In the description of the present disclosure, unless otherwise specified, the symbol " / " represents the meaning of "or", for example, A / B can represent A or B. The term "and / or" in this document only represents a description of the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent: only A, only B, and A and B. In addition, "at least one" means one or more, and "multiple" means two or more. The terms "first", "second", etc. do not limit the quantity and execution order, and the terms "first", "second", etc. also do not necessarily mean different.

[0017] It should be noted that the terms "exemplary" or "for example" are used herein to mean "an example of" or "one example, among others," not "an ideal or preferred implementation." Any embodiment or design scheme described as "exemplary" or "for example" in this disclosure should not be construed as preferred or advantageous over other embodiments or design schemes. Rather, the use of terms "exemplary" or "for example" is intended to present concepts in a concrete manner.

[0018] To expand the application scenarios of the 5th-generation mobile communication technology (5G) new air interface access technology, 5G / 6G connection through satellites and / or aircraft is considered as a promising application. In some standardization, new air interface-non-terrestrial network (NR-NTN) and internet of things-non-terrestrial network (IoT NTN) are supported. But there are unique restrictions on satellite payload limitations, for example, satellite transmit power is limited, resulting in a gain difference between nadir beams and edge beams. Therefore, in order to improve the downlink performance, especially when handheld terminals (such as mobile phones with a lower antenna gain of-5.5dBi) are directly connected to satellites, downlink coverage enhancement is needed.

[0019] In addition, in the terrestrial network, as the wireless communication system moves to higher frequencies, the propagation conditions deteriorate compared to lower frequencies, exacerbating the coverage challenge. Therefore, the downlink coverage performance, especially the common channels that are usually transmitted with wide beams, needs to be enhanced.

[0020] For link-level enhancement, repetition transmission can be used to improve the link budget margin by accumulating time-domain energy. The current specification supports PDSCH transmission of common channels including system information, downlink messages related to random access procedures, paging, etc. These channels are monitored by non-connected state (for example, non RRC_CONNECTED) terminal devices (for example, user equipment (UE)) and provide key information for the UE to access the network and maintain correct downlink synchronization. If repetition transmission is applied on these channels to improve link performance, a suitable way is needed for the UE to know the repetition transmission method used.

[0021] Exemplarily, in the current NR-NTN specification, a physical downlink shared channel (PDSCH) is divided into common scheduling and user-specific scheduling, and is scheduled by physical downlink control channels (PDCCHs) in different search spaces (SSs), respectively. The types of PDCCHs that can be used can be referred to Table 1. Since different SS types use different radio network temporary identity (RNTI) types for PDCCH CRC (cyclic redundancy check) scrambling, the SS type used can also be determined based on the RNTI type, so that the channel transmitted on the corresponding PDSCH can be known. The network node configures the SS for the user to indicate when the UE should detect the PDCCH.

[0022] Table 1

[0023] In view of this, the present disclosure provides a signal repetition transmission determination method, which determines repetition 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, and a physical downlink control channel corresponding to the downlink channel. In this way, when the downlink channel is repeatedly transmitted to enhance coverage, the terminal can accurately learn the repetition transmission information of the downlink channel in time, which can reduce unnecessary monitoring time of the downlink channel and reduce the energy consumption of the terminal. At the same time, when the terminal can accurately determine the repetition transmission information of the downlink channel, even in a poor communication environment, a high communication success rate can be maintained.

[0024] The signal repetition transmission determination method provided by the embodiments of the present disclosure can be applied to systems of various communication standards. For example, the signal repetition transmission determination method provided by the embodiments of the present disclosure can be applied to systems including but not limited to NTN systems, LTE systems, various versions based on LTE evolution, new radio (NR) systems, various versions based on NR evolution, 5G systems, Ambient Internet of Things (Ambient IoT), NR-NTN, IoT NTN, and the like. In addition, the signal repetition transmission determination method provided by the embodiments of the present disclosure can also be applied to future-oriented communication systems (for example, 6G communication systems) and the like.

[0025] Exemplarily, FIG. 1 provides an NTN communication system. As shown in FIG. 1, the communication system includes terminals 20, access network devices 10 and satellites 30. The terminals 20, the access network devices 10 and the satellites 30 can be one or more, and the number is not limited.

[0026] The terminals 20 can communicate with the access network devices 10 through the satellites 30, and correspondingly, the access network devices 10 can also communicate with the terminals 20 through the satellites 30. The link between the terminals 20 and the satellites 30 is a service link, the link between the access network devices 10 (such as base stations, NTN base stations, gateway stations) and the satellites 30 is a feeder link, and the access network devices 10 are common to all terminals 20 in the same cell.

[0027] In some embodiments, the access network device provides wireless access service for the terminal. One access network device provides at least one service coverage area (also referred to as a cell). The terminal entering the area can communicate with the access network device through a wireless signal to accept the wireless access service provided by the access network device.

[0028] In some embodiments, the base station (base station, BS) can be a base station in long term evolution (long term evolution, LTE), long term evolution enhancement (long term evolution advanced, LTEA) or evolutional node B (evolutional node B, eNB or eNodeB), a base station device in a 5G network, or a base station in a future communication system, etc., and the base station can include various macro base stations, micro base stations, home base stations, wireless remote devices, reconfigurable intelligent surfaces (reconfigurable intelligent surface, RIS), routers, relays, network controllable repeaters, TRPs, wireless fidelity (wireless fidelity, WIFI) devices, user equipment (user equipment, UE) and various network side devices.

[0029] In some embodiments, the terminal can be a device with wireless transceiver function. The terminal can be a passive device, an ambient IoT device, a mobile phone, a Pad, a computer with wireless transceiver function, 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 smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Embodiments of the present disclosure are not limited to the application scenarios. The terminal can also be referred to as a user, a user equipment (UE), an access terminal, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a UE terminal, a wireless communication device, a UE agent or a UE apparatus, etc. Embodiments of the present disclosure are not limited thereto.

[0030] It should be noted that FIG. 1 is only an exemplary framework diagram, the number of devices included in FIG. 1, and the name of each device are not limited, and in addition to the devices shown in FIG. 1, the communication system can also include other devices, such as core network devices.

[0031] The application scenarios of embodiments of the present disclosure are not limited. The system architecture and business scenarios described in the embodiments of the present disclosure are used to more clearly illustrate 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 skilled in the art can know that with the evolution of network architecture and the appearance of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.

[0032] Embodiments of the present disclosure provide a signal repetition transmission determination method, applied to a first node. As shown in FIG. 2, the method comprises S101.

[0033] S101, determining repetition transmission information of a downlink channel based on pre-defined information and / or instruction information.

[0034] The predefined information can be a rule or a value agreed in some protocol, and known to both the access network device and the terminal. For example, a set of repetition times can be predefined in some specifications. If the access network device does not explicitly indicate signaling, the UE determines the repetition transmission of the downlink channel according to the default value in the predefined repetition time set.

[0035] 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 a bit in the signaling information transmitted by the access network device, which is used to enable the predefined information or enable the related indication in other signaling. The configuration information refers to the configuration information in the signaling information transmitted by the access network device, which is generally quasi-static information, for example, as the content of a high-layer message. For example, the high-layer message in NR includes radio resource control (RRC), media access control-control element (MAC CE), and the like. The indication information refers to the indication information in the signaling information transmitted by the access network device, which is generally dynamic information. For example, the dynamic signaling in NR includes MAC CE, downlink control information (DCI), and the like.

[0036] In some embodiments, the downlink channel is one of: system information (SI), system information block 1 (SIB1), system information block x (denoted as SIBx), and physical downlink shared channel (PDSCH); wherein x is an integer greater than 1.

[0037] In some embodiments, the repetition transmission information can include identification information of the downlink channel. For example, the name of the downlink channel or the RNTI type corresponding to the downlink channel.

[0038] The PDSCH names include at least: message 2 (denoted as Msg2), message 4 (denoted as Msg4), message B (denoted as MsgB), paging message (denoted as paging), common channel (denoted as common PDSCH), group common channel (denoted as group common PDSCH). The RNTI types related to PDSCH include at least: SI-RNTI, RA-RNTI (Random Access RNTI), TC-RNTI (Temporary Cell RNTI), MsgB-RNTI, C-RNTI (Cell RNTI), CS-RNTI (Configured Scheduling RNTI), P-RNTI (Paging RNTI), PEI-RNTI (Paging Early Indication RNTI), INT-RNTI (Interruption RNTI), SFI-RNTI (Slot Format Indication RNTI), TPC-PUSCH-RNTI (Transmit Power Control-Physical Uplink Shared Channel RNTI), TPC-PUCCH-RNTI (Transmit Power Control-Physical Uplink Control Channel RNTI), TPC-SRS-RNTI (Transmit Power Control-Sounding Reference Signal RNTI), CI-RNTI (Cancellation Indicator RNTI), cellDTRX-RNTI (cell DTX / DRX RNTI), MCS-C-RNTI (Modulation and Coding Scheme-Cell-RNTI), PS-RNTI (Power Saving RNTI). Thus, the downlink channel which needs to be repeatedly transmitted can be determined based on the PDSCH name or the RNTI type.

[0039] In some embodiments, the instruction information corresponding to the downlink channel is located in at least one of: a channel transmitted before the downlink channel, a physical downlink control channel corresponding to the downlink channel.

[0040] For example, the instruction information corresponding to SIB1 can be located in at least one of: a master information block (MIB), a physical broadcast channel (PBCH), a PDCCH corresponding to SIB1. The instruction information corresponding to SI or SIBx can be located in at least one of: a MIB, a PBCH, a PDCCH corresponding to SIB1, a PDCCH corresponding to SIBx, a PDCCH corresponding to SIBy, a PDCCH corresponding to SIBx, a SI, a PDCCH corresponding to SI. The instruction information corresponding to PDSCH can be located in at least one of: a MIB, a PBCH, a PDCCH corresponding to SIB1, a PDCCH corresponding to SIBx, a PDCCH corresponding to SIBy, a SI, a PDCCH corresponding to PDSCH, where y is an integer not equal to x and greater than 1.

[0041] In some embodiments, the repetition transmission information at least comprises a repetition transmission number of the downlink channel.

[0042] In some embodiments, the instruction information comprises first instruction information (also referred to as a flag bit, etc.), and the determining the repetition transmission information of the downlink channel based on the instruction information comprises: determining, based on the first instruction information, whether the repetition transmission number of the downlink channel is a default value in a predefined repetition number set.

[0043] In some embodiments, the first instruction information is located in a channel transmitted before the downlink channel.

[0044] All sets in the present disclosure can have one or more elements.

[0045] All sets in the present disclosure can have one element as a default value. For example, the default value can be understood as a default value. For example, if a set has only one element, it is considered as a default value. For example, if a set has multiple elements, the xth element is the default value, where x is a predefined value, for example, x is equal to 1.

[0046] For example, for the repetition transmission of SIB1, the UE can determine, according to the first instruction information in the MIB, the PBCH, or the PDCCH corresponding to SIB1, whether the repetition transmission number of SIB1 is a default value in a predefined repetition number set.

[0047] Exemplarily, for the repetition transmission of SI / SIBx, the UE can determine whether the repetition transmission number of SI / SIBx is the default value in the predefined repetition number set according to the first instruction information in the MIB, PBCH, SIB1, SIBy or PDCCH corresponding to SI / SIBx, where y is an integer not equal to x.

[0048] Exemplarily, for the repetition transmission of PDSCH, there should be a predefined PDSCH name set and a predefined repetition number set in some specifications. The UE can determine whether the repetition transmission number of the plurality of PDSCHs corresponding to the predefined PDSCH name set is the default value in the predefined repetition number set according to the first instruction information in the MIB, PBCH, SIB1, SI / SIBx or PDCCH corresponding to the PDSCH.

[0049] In some embodiments, the instruction information includes second instruction information, and determining the repetition transmission information of the downlink channel based on the instruction information includes: determining the repetition transmission number 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 including 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, 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 repetition transmission downlink channel (the repetition transmission downlink channel can be referred to as an applicable target), the applicable target index is used to determine a repetition transmission downlink channel in the applicable target set, and the association relationship set contains at least one association relationship between a repetition transmission downlink channel and a repetition number, and the association relationship index is used to determine an association relationship in the association relationship set.

[0050] In some embodiments, the second instruction information is located in a channel transmitted before the downlink channel.

[0051] In some embodiments, when the second instruction information includes a repetition number set, the UE determines the repetition transmission number of the downlink channel as the default value in the repetition number set.

[0052] In some embodiments, when the second instruction information comprises the repetition number index, the UE obtains the repetition transmission number of the downlink channel from a pre-defined repetition number set according to the repetition number index. The repetition number index and the repetition number in the pre-defined repetition number set have a corresponding relationship. For example, as shown in Table 2, a 2-bit repetition number index can correspond to four different repetition numbers. The four repetition numbers {2, 4, 8, 16} constitute a repetition number set, wherein 2 can be pre-defined as the default value of the repetition number.

[0053] Table 2

[0054] In some embodiments, when the second instruction information comprises the repetition number index and the repetition number set, the UE obtains the repetition transmission number of the downlink channel from the repetition number set according to the repetition number index. The repetition number index and the repetition number in the repetition number set have a corresponding relationship.

[0055] In some embodiments, when the second instruction information comprises the applicable target set, the UE determines that the downlink channel corresponding to the default value of the applicable target set will have repetition transmission, and determines that the repetition transmission number of the downlink channel is the default value in the pre-defined repetition number set.

[0056] In some embodiments, when the second instruction information comprises the applicable target index, the UE obtains the repetition transmission downlink channel from the pre-defined applicable target set according to the applicable target index, and determines that the repetition transmission number of the downlink channel is the default value in the pre-defined repetition number set.

[0057] In some embodiments, when the second instruction information comprises the repetition number set and the applicable target set, the UE determines that the downlink channel corresponding to the default value of the applicable target set will have repetition transmission, and determines that the repetition transmission number of the downlink channel is the default value in the repetition number set.

[0058] In some embodiments, when the second instruction information comprises the repetition number set, the repetition number index and the applicable target index, the UE obtains the repetition transmission downlink channel from the pre-defined applicable target set according to the applicable target index, and obtains the repetition transmission number of the downlink channel from the repetition number set according to the repetition number index.

[0059] In some embodiments, when the second instruction information comprises the repetition number index and the applicable target index, the UE obtains the repetition transmission downlink channel from the pre-defined applicable target set according to the applicable target index, and obtains the repetition transmission number of the downlink channel from the pre-defined repetition number set according to the repetition number index.

[0060] In some embodiments, when the second instruction information comprises the repetition number set, the applicable target index, the UE obtains the downlink channel with repetition transmission from the pre-defined applicable target set according to the applicable target index, and determines the repetition number of the downlink channel with repetition transmission as the default value in the repetition number set.

[0061] In some embodiments, when the second instruction information comprises the applicable target set, the repetition number index, the UE determines that the downlink channel corresponding to the default value of the applicable target set has repetition transmission, and obtains the repetition number of the downlink channel according to the repetition number index from the pre-defined repetition number set.

[0062] In some embodiments, when the second instruction information comprises the applicable target set, the applicable target index, the UE obtains the downlink channel with repetition transmission from the applicable target set according to the applicable target index, and determines the repetition number of the downlink channel with repetition transmission as the default value in the pre-defined repetition number set.

[0063] In some embodiments, when the second instruction information comprises the repetition number set, the applicable target set, the applicable target index, the UE obtains the downlink channel with repetition transmission from the applicable target set according to the applicable target index, and determines the repetition number of the downlink channel with repetition transmission as the default value in the repetition number set.

[0064] In some embodiments, when the second instruction information comprises the repetition number index, the applicable target set, the applicable target index, the UE obtains the downlink channel with repetition transmission from the applicable target set according to the applicable target index, and obtains the repetition number of the downlink channel with repetition transmission according to the repetition number index from the pre-defined repetition number set.

[0065] In some embodiments, when the second instruction information comprises the repetition number set, the repetition number index, the applicable target set, the applicable target index, the UE obtains the downlink channel with repetition transmission from the applicable target set according to the applicable target index, and obtains the repetition number of the downlink channel with repetition transmission according to the repetition number index from the repetition number set.

[0066] In some embodiments, the association relationship in the association relationship set comprises the following ways:

[0067] 1-to-1 (one-to-one) with omission. For example, there is only one pre-defined or configured applicable target, and only the repetition number can be included. For example, there is only one pre-defined or configured repetition number, and only the applicable target can be included.

[0068] N-to-1 (N to 1) with omission. For example, if there is at least one predefined or configured applicable target, all using the same repetition number, then only the repetition number can be included.

[0069] 1-to-1, {1 applicable target, 1 repetition number};

[0070] N-to-1, {N applicable targets, 1 repetition number}, where N >= 1 in this example;

[0071] N-to-N (N to N), {N applicable targets, N repetition numbers}, one-to-one correspondence between applicable targets and repetition numbers in order;

[0072] N-to-N, N groups of correspondence, {[applicable target 1, repetition number 1], [applicable target 2, repetition number 2] … [applicable target N, repetition number N]};

[0073] N-to-M (N to M), N applicable targets, M repetition numbers, multiple applicable targets with the same repetition number are organized together, where M is greater than or equal to N. For example, {[repetition number 1], [applicable target 1, applicable target 2]} + {[repetition number 2], [applicable target 3, applicable target 4, applicable target 5]} + … + {[repetition number M], [applicable target N]}.

[0074] If the association relationship between the applicable target and the repetition number is a predefined association relationship set, at least one association relationship between the applicable target and the repetition number in the predefined set can be included, or an association relationship index of the applicable target and the repetition number. If the predefined association relationship set only contains one element, the second instruction information can not contain the association relationship index.

[0075] In some embodiments, there can be a predefined association relationship between the downlink channel (the downlink channel can also be recorded as the applicable target) in the applicable target set in the present disclosure and the repetition number in the repetition number set.

[0076] Exemplarily, the predefined association relationship can include the following:

[0077] 1-to-1, {1 applicable target, 1 repetition number};

[0078] N-to-1, {N applicable targets, 1 repetition number}, where N >= 1 in this example;

[0079] N-to-N, {N applicable targets, N repetition numbers}, one-to-one correspondence between applicable targets and repetition numbers in order;

[0080] N-to-N, N groups of corresponding, {[applicable target 1, number of repetitions 1], [applicable target 2, number of repetitions 2] … [applicable target N, number of repetitions N]};

[0081] N-to-M, N applicable targets, M number of repetitions, multiple applicable targets with the same number of repetitions are organized together, wherein 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]}.

[0082] The applicable target set in the present disclosure can be one of the following: a set of names of downlink channels (such as a set of SI / SIBx, a set of PDSCH names), a set of name indexes of downlink channels, a set of RNTI types, a set of RNTI type indexes. It can be understood that as long as the repeated transmission of the downlink channel based on the elements in the applicable target set is determined, it is within the protection scope of the present disclosure. If the applicable target set is predefined, the indication corresponding to the applicable target set can be omitted.

[0083] For example, the applicable target set can be a set of names of downlink channels, and the applicable target index can be a name index of the downlink channel. Alternatively, the applicable target set can be a set of RNTI types, and the applicable target index can be an RNTI type index.

[0084] In the present disclosure, the number of repetitions can be obtained from the set of numbers of repetitions contained in the signaling or from the predefined set of numbers of repetitions based on the number of repetitions index.

[0085] In the present disclosure, the applicable target (or the downlink channel of repeated transmission) can be obtained from the applicable target set contained in the signaling or from the predefined applicable target set based on the applicable target index.

[0086] Exemplarily, for the repeated transmission of SIB1, the UE can determine the number of repetitions of SIB1 according to the second instruction information in the MIB, PBCH or PDCCH corresponding to SIB1. For the repeated transmission of SI / SIBx, the UE can determine the number of repetitions of SI / SIBx according to the second instruction information in the MIB, PBCH, SIB1, SIBy or PDCCH corresponding to SI / SIBx. The second instruction information includes at least one of the following: a set of numbers of repetitions, a number of repetitions index.

[0087] For example, in the case where the second instruction information includes a set of numbers of repetitions, the UE determines the SIB1 / SI / SIBx of the downlink channel as the default value in the set of numbers of repetitions.

[0088] In a case that the second instruction information includes the repetition number index, the UE determines the repetition transmission number of the SIB1 / SI / SIBx according to the repetition number index from a pre-defined repetition number set.

[0089] In a case that the second instruction information includes the repetition number index and the repetition number set, the UE determines the repetition transmission number of the SIB1 / SI / SIBx according to the repetition number index from the repetition number set.

[0090] Further exemplarily, for the repetition transmission of the PDSCH, the UE can determine the repetition transmission number of the PDSCH according to the second instruction information in the MIB, the PBCH, the SIB1, the SI / SIBx, the SIBy or the PDCCH corresponding to the PDSCH.

[0091] The second instruction information includes at least one of the following: the repetition number set, the repetition number index, the PDSCH name set, the PDSCH name index, the RNTI type set, the RNTI type index.

[0092] For example, in a case that the second instruction information includes the repetition number set and the PDSCH name set, the UE determines that the PDSCH corresponding to the default value of the PDSCH name set will have the repetition transmission, and determines the repetition transmission number of the PDSCH as the default value in the repetition number set.

[0093] In a case that the second instruction information includes the repetition number index and the PDSCH name set, the UE determines that the PDSCH corresponding to the default value of the PDSCH name set will have the repetition transmission, and determines the repetition transmission number of the PDSCH according to the repetition number index from a pre-defined repetition number set.

[0094] In a case that the second instruction information includes the repetition number set and the RNTI type set, the UE determines that the PDSCH corresponding to the default value of the RNTI type set will have the repetition transmission, and determines the repetition transmission number of the PDSCH as the default value in the repetition number set.

[0095] In a case that the second instruction information includes the repetition number index and the RNTI type set, the UE determines that the PDSCH corresponding to the default value of the RNTI type set will have the repetition transmission, and determines the repetition transmission number of the PDSCH according to the repetition number index from a pre-defined repetition number set.

[0096] In some embodiments, the instruction information comprises third instruction information, and the determining the repetition transmission information of the downlink channel based on the instruction information comprises: determining the repetition transmission times of the downlink channel based on the third instruction information comprised in the channel transmitted before the downlink channel, the third instruction information being used to indicate that the repetition transmission times of the downlink channel are same as the repetition transmission times of the channel transmitted before the downlink channel.

[0097] The third instruction information can comprise the name or name index of the downlink channel (or message) which needs to have the same repetition transmission times as the channel transmitted before the downlink channel. If the third instruction information is the name index of the downlink channel (or message), there should be a predefined set of names of the downlink channel (or message).

[0098] Exemplarily, for the repetition transmission of SI / SIBx, the repetition transmission times of SIB1 can be followed (i.e., the repetition transmission times of SI / SIBx are same as the repetition transmission times of SIB1). That is, the third instruction information is comprised in SIB1, which is used to indicate that the repetition transmission times of SI / SIBx are same as the repetition transmission times of SIB1.

[0099] For example, the UE determines the repetition times of SIB1, and applies the repetition times to at least one of SI / SIBx. The at least one SI / SIBx can be predefined or indicated in SIB1. The predefined or indication comprises one or more specific message names or message name indexes in a set of SI / SIBx. If the predefined or indication is the message name index, there should be a predefined set of message names.

[0100] For the repetition transmission of SI / SIBx, the repetition transmission times of other SI / SIBy can also be followed (i.e., the repetition transmission times of SI / SIBx are same as the repetition transmission times of other SI / SIBy). That is, the third instruction information is comprised in SI / SIBy, which is used to indicate that the repetition transmission times of SI / SIBx are same as the repetition transmission times of SI / SIBy, where y is not equal to x.

[0101] For example, the UE determines the repetition times of SI / SIBy, and applies the repetition times 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.

[0102] Exemplarily, for PDSCH repetition transmission, the repetition number of SIB1 or SI / SIBx can be followed (i.e., the repetition number of PDSCH repetition transmission is the same as that of SIB1 or SI / SIBx). That is, the third instruction information is contained in SIB1 or SI / SIBx, which is used to indicate that the repetition number of PDSCH is the same as that of SIB1 or SI / SIBx.

[0103] For example, the UE determines the repetition number of SIB1 and applies the repetition number to at least one of PDSCH. The at least one PDSCH can be predefined or configured or indicated in SIB1 / SIBx.

[0104] For example, the UE determines the repetition number of SI / SIBx and applies the repetition number to at least one of PDSCH. The SI / SIBx and the corresponding at least one PDSCH can be predefined or configured or indicated in SIB1 / SIBx.

[0105] In some embodiments, the instruction information includes fourth instruction information (which can also be referred to as configuration information, etc.) and fifth instruction information (which can also be referred to as indication information, etc.), and based on the instruction information, the repetition transmission information of the downlink channel is determined, including:

[0106] Based on the fourth instruction information and the fifth instruction information, the repetition transmission information of the downlink channel is determined; the fourth instruction information at least 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 repetition transmission downlink channel, the repetition number set includes at least one repetition number, and the association relationship set contains the association relationship between at least one repetition transmission downlink channel and repetition number; the fifth instruction information at least indicates at least one of the following: at least one repetition transmission 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.

[0107] It can be understood that if the applicable target set has only one element, it is considered as a default applicable target, and the fifth instruction information for indicating at least one repetition transmission downlink channel in the applicable target set can be omitted. If the repetition number set has only one element, it is considered as a default repetition number, and the fifth instruction information for indicating at least one repetition transmission number in the repetition number set can be omitted.

[0108] The association relationship set contains the association relationship between at least one repetition transmission downlink channel (or applicable target) and repetition number, and the related content can be referred to the description above.

[0109] 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.

[0110] Exemplarily, for SI / SIBx repetition transmission, the placement of the fourth instruction information and the fifth instruction information is one of the following:

[0111] The fourth instruction information is located in MIB or PBCH, and the fifth instruction information is located in SIB1 or SI / SIBy, y not equal to x;

[0112] The fourth instruction information is located in MIB or PBCH, and the fifth instruction information is located in a PDCCH corresponding to SI / SIBx;

[0113] The fourth instruction information is located in SIB1, and the fifth instruction information is located in a PDCCH corresponding to SI / SIBx.

[0114] Exemplarily, for PDSCH repetition transmission, 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 MIB or PBCH, and the fifth instruction information is located in SIB1 or SI / SIBx;

[0116] The fourth instruction information is located in SIB1, and the fifth instruction information is located in SI / SIBx;

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

[0118] In some embodiments, the UE determines whether to apply the fifth instruction 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.

[0119] Exemplarily, for PDSCH x repetition transmission, the UE determines its repetition transmission according to one of the following:

[0120] The UE determines whether there is fifth instruction information in PDSCH y or whether to apply the fifth instruction information in PDSCH y according to the fourth instruction information. The fourth instruction information is located in one or more of {MIB, PBCH, SIB1, SIBx}. The fifth instruction information is used to indicate whether PDSCH x is repetition transmitted, x not equal to y.

[0121] The fourth instruction information at least includes: a target set (e.g., a PDSCH name set, an RNTI type set), a repetition number set, and a correlation set.

[0122] Any of the above sets can have only one element.

[0123] Any of the above sets can be predefined.

[0124] There is a correlation between the downlink channel (the downlink channel can also be referred to as the target) in the target set and the repetition number in the repetition number set. For related content, please refer to the above description.

[0125] The fifth instruction information in the PDSCH y is used to indicate at least one of the following: at least one PDSCH for repeated transmission in the target set, at least one repetition number in the repetition number set, and at least one correlation in the correlation set.

[0126] For example, the target set is included in the fourth instruction information, and the fifth instruction information is used to indicate at least one PDSCH (or PDSCH name, PDSCH name index, RNTI type, RNTI type index) for repeated transmission in the target set.

[0127] If there is no fourth instruction information or the target set is not included in the fourth instruction information, the fifth instruction information is used to indicate at least one PDSCH (or PDSCH name, PDSCH name index, RNTI type, RNTI type index) for repeated transmission.

[0128] If the target set is a predefined set, the fifth instruction information indicates at least one PDSCH (or PDSCH name, PDSCH name index, RNTI type, RNTI type index) in the predefined set. If the predefined set has only one element, the fifth instruction information for indicating at least one PDSCH for repeated transmission in the target set can be omitted.

[0129] If the repetition number set is included in the fourth instruction information, the fifth instruction information is used to indicate at least one repetition number or repetition number index selected from the set.

[0130] If there is no fourth instruction information or the repetition number set is not included in the fourth instruction information, the fifth instruction information is used to indicate at least one repetition number.

[0131] If the set of repetition times is predefined, the fifth instruction information is used to indicate at least one repetition time or repetition time index in the predefined set. If the predefined set only contains one element, the fifth instruction information can be omitted.

[0132] If the fourth instruction information contains a set of associations between applicable targets and repetition times, the fifth instruction information is used to indicate at least one association between applicable targets and repetition times or an association index between applicable targets and repetition times selected from the set.

[0133] If there is no fourth instruction information or the fourth instruction information does not contain a set of associations between applicable targets and repetition times, the fifth instruction information indicates at least one association between applicable targets and repetition times. At least the following ways are included:

[0134] 1-to-1 with omission. For example, there is only one predefined or configured applicable target, the fifth instruction information can only indicate the repetition time. For example, there is only one predefined or configured repetition time, the fifth instruction information can only indicate the applicable target.

[0135] N-to-1 with omission. For example, there is at least one predefined or configured applicable target, and the same repetition time is used, the fifth instruction information can only indicate the repetition time.

[0136] 1-to-1, {applicable target, repetition time}.

[0137] N-to-1, {N applicable targets, 1 repetition time}, N >= 1.

[0138] N-to-N, {N applicable targets, N repetition times}, the applicable targets and the repetition times correspond one by one in order.

[0139] N-to-N, N groups of correspondence, {[applicable target 1, repetition time 1], [applicable target 2, repetition time 2] … [applicable target N, repetition time N]}.

[0140] N-to-M, N applicable targets, M repetition times, multiple applicable targets with the same repetition time are organized together, {[repetition time 1], [applicable target 1, applicable target 2]} + {[repetition time 2], [applicable target 3, applicable target 4, applicable target 5]} + … + {[repetition time M], [applicable target N]}.

[0141] If the association between the applicable target and the repetition number is a predefined association set, the fifth instruction information indicates at least one applicable target and repetition number association in the predefined association set or an applicable target and repetition number association index. If the predefined set only contains one element, the fifth instruction information is used to indicate that at least one association in the association set can be omitted.

[0142] In some embodiments, based on the sixth instruction information (also 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 (also 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 the second instruction information exists in the second channel transmitted before the downlink channel or the control channel corresponding to the downlink channel.

[0143] In the case of determining to apply the second instruction information in the second channel transmitted before the downlink channel or the control channel corresponding to the downlink channel or determining that the second instruction information exists in the second channel transmitted before the downlink channel or the control channel corresponding to the downlink channel, the repetition transmission information of the downlink channel is determined based on the second instruction information.

[0144] The second instruction information at least 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 set, and an association index; the applicable target set includes at least one repeatedly transmitted downlink channel, the applicable target index is used to determine at least one repeatedly transmitted downlink channel 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 set contains at least one association between a repeatedly transmitted downlink channel and a repetition number, and the association index is used to determine an association in the association set.

[0145] The repetition number index indicates that one repetition number in a repetition number set is applied. If the second instruction information includes a repetition number index, there needs to be a corresponding repetition number set so as to obtain the repetition number from the repetition number set based on the repetition number index. The repetition number set can be predefined or carried in the second instruction information. The repetition number set can only have one element.

[0146] In some embodiments, the first channel is located before the second channel.

[0147] Exemplarily, for SI / SIBx repetition transmission, the sixth instruction information and the second instruction information satisfy one of the following cases:

[0148] The sixth instruction information is located in the MIB or the PBCH, and the sixth instruction information is used to determine whether the second instruction information exists in the SIB1 or the SIBy;

[0149] The sixth instruction information is located in the MIB or the PBCH, and the sixth instruction information is used to determine whether to apply the second instruction information in the SIB1 or the SIBy;

[0150] The sixth instruction information is located in the SIB1 or the SIBy, and the sixth instruction information is used to determine whether the second instruction information exists in the PDCCH corresponding to the SI / SIBx;

[0151] The sixth instruction information is located in the SIBy, and the sixth instruction information is used to determine whether to apply the second instruction information in the SIBn.

[0152] 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: a SI / SIBx set used to determine at least one SI / SIBx for repeated transmission, a repetition number set including at least one repetition number.

[0153] In the present example, the second instruction information at least includes at least one of the following:

[0154] (1) Applicable target of repetition transmission, including at least one SI / SIBx. If the SI / SIBx is predefined, this indication can be omitted.

[0155] (2) Repetition number, or repetition number index.

[0156] The repetition number index indicates to apply a certain repetition number in a repetition number set. The predefined repetition number set can have only one element.

[0157] If the repetition number index is included, the repetition number must have a corresponding predefined set. The set can have only one element.

[0158] (3) Repetition number set. The set can have only one element.

[0159] (4) Association between applicable target and repetition number. The relevant content can be referred to the description above.

[0160] Exemplarily, for PDSCH repetition transmission, the placement of the sixth instruction information and the second instruction information is one of the following:

[0161] The sixth instruction information is located in the MIB or the PBCH, and the sixth instruction information is used to determine whether the second instruction information exists in the SIB1 or the SIBx or the PDSCH corresponding PDCCH.

[0162] The sixth instruction information is located in the MIB or the PBCH, and the sixth instruction information is used to determine whether the second instruction information exists in the SIB1 or the SIBx or the PDSCH corresponding PDCCH.

[0163] The sixth instruction information is located in the SIB1, and the sixth instruction information is used to determine whether the second instruction information exists in the SIBx or the PDSCH corresponding PDCCH.

[0164] The sixth instruction information is located in the SIB1, and the sixth instruction information is used to determine whether the second instruction information exists in the SIBx or the PDSCH corresponding PDCCH.

[0165] The sixth instruction information is located in the SIBx, and the sixth instruction information is used to determine whether the second instruction information exists in the SIBy or the PDSCH corresponding PDCCH.

[0166] The sixth instruction information is located in the SIBx, and the sixth instruction information is used to determine whether the second instruction information exists in the SIBy or the PDSCH corresponding PDCCH.

[0167] y is an integer greater than 1 and not equal to x, and n is an integer not equal to x.

[0168] In this example, the second instruction information can include at least one of the following: a target set, a repetition number set, a repetition number index, and a relationship set.

[0169] For example, the target includes at least: a PDSCH name, and an RNTI type. If the PDSCH name is predefined, this indication can be omitted. If the RNTI type is predefined, this indication can be omitted. If the repetition number index is included, the repetition number must have a corresponding predefined set. The set can have only one element. If the repetition number set is included, the repetition number set can have only one element. The relationship set can refer to the description above.

[0170] Exemplarily, the PDSCH x is repeatedly transmitted. The UE determines the PDSCH x repetition transmission information according to the following:

[0171] The UE determines whether the second instruction information exists in the PDSCH y or whether the second instruction information in the PDSCH y is applied 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 the PDSCH x is repeatedly transmitted. x is not equal to y.

[0172] The second instruction information includes at least one of the following: a set of applicable targets, an index of the set of applicable targets, a set of repetition times, an index of the set of repetition times, a set of association relationships, and an index of the set of association relationships.

[0173] For example, if there is a predefined set of PDSCH names, the second instruction information can indicate at least one PDSCH name or a PDSCH name index in the predefined set of PDSCH names. If the predefined set of PDSCH names has only one element, the second instruction information can be omitted.

[0174] For example, if there is a predefined set of RNTI types, the second instruction information can indicate at least one RNTI type or an RNTI type index in the predefined set of RNTI types. If the predefined set of RNTI types has only one element, the indication can be omitted.

[0175] For example, if there is a predefined set of repetition times, the second instruction information can indicate at least one repetition time or a repetition time index in the predefined set of repetition times. If the predefined set of repetition times has only one element, the indication can be omitted.

[0176] For example, if there is a set of association relationships, the second instruction information can indicate at least one association relationship between an applicable target and a repetition time or an index of the association relationship between the applicable target and the repetition time. The content of the set of association relationships between the applicable target and the repetition time can refer to the description above.

[0177] For example, if there is no set of association relationships, the second instruction information indicates at least one association relationship between an applicable target and a repetition time. The association relationship includes at least the following:

[0178] There is an omitted 1-to-1. For example, there is only one predefined or configured applicable target, and only the repetition time can be included. For example, there is only one predefined or configured repetition time, and only the applicable target can be included.

[0179] There is an omitted N-to-1. For example, there is at least one predefined or configured applicable target, and the same repetition time is used, and only the repetition time can be included.

[0180] 1-to-1, {1 applicable target, 1 repetition time};

[0181] N-to-1, {N applicable targets, 1 repetition time}, where N>=1 in the example;

[0182] N-to-N, {N applicable targets, N repetition times}, the applicable targets and the repetition times correspond to each other in order;

[0183] N-to-N, N groups of corresponding, {[applicable target 1, number of repetitions 1], [applicable target 2, number of repetitions 2] … [applicable target N, number of repetitions N]};

[0184] N-to-M, N applicable targets, M number of repetitions, multiple applicable targets with the same number of repetitions are organized together, wherein 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]}.

[0185] If the association relationship between the applicable target and the number of repetitions is a predefined association relationship set, the second instruction information indicates at least one of the association relationship between the applicable target and the number of repetitions in the predefined association relationship set or the association relationship index between the applicable target and the number of repetitions. If the predefined association relationship set contains only one element, this indication can be omitted.

[0186] In some embodiments, based on the seventh instruction information in the first channel transmitted before the downlink channel, it is determined whether the second channel transmitted before the downlink channel has fourth instruction information or whether the fourth instruction information in the second channel transmitted before the downlink channel is applied; 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 contains at least one association relationship between the repeatedly transmitted downlink channel and the repetition number.

[0187] In the case where it is determined that the second channel transmitted before the downlink channel has the fourth instruction information or the fourth instruction information in the second channel transmitted before the downlink channel is applied, based on the fourth instruction information and the fifth instruction information in the control channel corresponding to the downlink channel, the repetition transmission information of the downlink channel is determined; 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.

[0188] It can be understood that the applicable target set can be a set of downlink channel names or a set of RNTI types (or a set of RNTI type indexes). For example, a set of SI / SIBx (or a set of SI / SIBx indexes), a set of PDSCH names (or a set of PDSCH indexes). The applicable target set and / or the repetition number set can have only one element. The association between the downlink channel in the applicable target set (the downlink channel can also be referred to as the applicable target) and the repetition number in the repetition number set can refer to the description above.

[0189] In some embodiments, in the case that the fourth instruction information includes an applicable target set (for example, a set of SI / SIBx, a set of PDSCH names, a set of RNTI types), the fifth instruction information can be used to indicate at least one downlink channel for repeated transmission in the applicable target set (for example, the fifth instruction information contains SI / SIBx, PDSCH name, PDSCH name index, RNTI type, RNTI type index). In the case that the fourth instruction information does not include an applicable target set (for example, a set of SI / SIBx), the fifth instruction information can be used to indicate at least one downlink channel for repeated transmission in a predefined applicable target set (for example, SI / SIBx). If the applicable target set or the predefined applicable target set contains only one element, the fifth instruction information can only indicate one repetition number or repetition number index in the repetition number set, or the fifth instruction information can be omitted.

[0190] In some embodiments, in the case that 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. In the case that 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.

[0191] In some embodiments, the first channel is located before the second channel.

[0192] Exemplarily, for SI / SIBx repeated transmission, one of the following is determined:

[0193] (1) The UE determines whether the fourth instruction information exists in SIB1 or SIBy based on the seventh instruction information in the MIB or PBCH. The seventh instruction information is used to determine whether the fourth instruction information exists in SIB1 or SIBy.

[0194] If the fourth instruction information is determined to exist in the SIB1 or the SIBy, the UE determines the repetition transmission information of the SI / SIBx based on the fourth instruction information and the fifth instruction information in the PDCCH corresponding to the SI / SIBx.

[0195] If the fourth instruction information is determined not to exist, the UE determines that the fifth instruction information does not exist in the PDCCH corresponding to the SI / SIBx, or the indication in the PDCCH corresponding to the SI / SIBx is invalid, y is not equal to x.

[0196] (2) The UE determines whether to apply the fourth instruction information in the SIB1 or the SIBy according to the seventh instruction information in the MIB or the PBCH.

[0197] If the UE determines to apply, the UE determines that the fifth instruction information exists 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 repetition transmission information of the SI / SIBx based on the fourth instruction information and the fifth instruction information in the PDCCH corresponding to the SI / SIBx.

[0198] If the UE determines 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.

[0199] The fourth instruction information in the present example at least includes: the applicable target of the repetition transmission, at least including: a set of SI / SIBx; a set of repetition times; any of the above sets can only have one element. The content of the association relationship between the applicable target and the repetition times can be referred to the description above.

[0200] The fifth instruction information in the present example at least can include at least one of the following:

[0201] The applicable target of the repetition transmission:

[0202] If the fourth instruction information contains the applicable target of the repetition transmission, the fifth instruction information indicates at least one SI / SIBx selected from the set or the index of at least one SI / SIBx. If the fourth instruction information does not contain the applicable target of the repetition transmission, the fifth instruction information indicates at least one SI / SIBx. If the set of SI / SIBx is predefined, the fifth instruction information indicates at least one SI / SIBx or the index of SI / SIBx in the predefined set. If the predefined set only has one element, the indication can be omitted.

[0203] The number of repetitions, or the index of the number of repetitions:

[0204] If the fourth instruction information contains a set of repetition times, the fifth instruction information indicates at least one repetition time or repetition time index selected from the set.

[0205] If the fourth instruction information does not contain a set of repetition times, the fifth instruction information indicates at least one repetition time.

[0206] If the set of repetition times is predefined, the fifth instruction information indicates at least one repetition time or repetition time index in the predefined set. If the predefined set contains only one element, this indication can be omitted.

[0207] The association between the applicable target and the repetition time:

[0208] If the fourth instruction information contains a set of associations between the applicable target and the repetition time, the fifth instruction information indicates at least one association between the applicable target and the repetition time or an association index selected from the set.

[0209] If the fourth instruction information does not contain a set of associations between the applicable target and the repetition time, the fifth instruction information indicates at least one association between the applicable target and the repetition time. At least the following ways:

[0210] 1-to-1 with omission. For example, there is only one predefined or configured applicable target, and only the repetition time can be included. For example, there is only one predefined or configured repetition time, and only the applicable target can be included.

[0211] N-to-1 with omission. For example, there is at least one predefined or configured applicable target, and the same repetition time is used, and only the repetition time can be included.

[0212] 1-to-1, {1 applicable target, 1 repetition time};

[0213] N-to-1, {N applicable targets, 1 repetition time}, where N>=1 in this example;

[0214] N-to-N, {N applicable targets, N repetition times}, the applicable targets and the repetition times are one-to-one corresponding in order;

[0215] N-to-N, N groups of correspondence, {[applicable target 1, repetition time 1], [applicable target 2, repetition time 2] … [applicable target N, repetition time N]};

[0216] N-to-M, N number of applicable targets, M number of repetitions, multiple applicable targets with same number of repetitions are organized together, where M is greater than or equal to N. For example, {[repetition number 1], [applicable target 1, applicable target 2]} + {[repetition number 2], [applicable target 3, applicable target 4, applicable target 5]} + … + {[repetition number M], [applicable target N]}.

[0217] If the association between applicable target and repetition number is a predefined set, the fifth instruction information indicates at least one of the association between applicable target and repetition number in the predefined set or an index of the association between applicable target and repetition number. If the predefined set only contains one element, this indication can be omitted.

[0218] Exemplarily, for PDSCH repetition transmission, one of the following is determined:

[0219] (1) The UE determines according to the seventh instruction information in the MIB or PBCH, the seventh instruction information indicating whether the fourth instruction information exists in SIB1 or SIBx. If the fourth instruction information exists, the fifth instruction information exists in the PDCCH corresponding to the PDSCH to indicate one of the options in the configuration. If the fourth instruction information does not exist, the fifth instruction information does not exist in the PDCCH corresponding to the PDSCH, or the indication is invalid.

[0220] (2) The UE determines according to the seventh instruction information in the MIB or PBCH, the seventh instruction information indicating whether to apply the fourth instruction information in SIB1 or SIBx. If the fourth instruction information is applied, the fifth instruction information exists 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, the fifth instruction information does not exist in the PDCCH corresponding to the PDSCH, or the indication is invalid.

[0221] (3) The UE determines according to the seventh instruction information in SIB1, indicating whether the fourth instruction information exists in SIBx. If the fourth instruction information exists, the fifth instruction information exists in the PDCCH corresponding to the PDSCH to indicate one of the options in the configuration. If the fourth instruction information does not exist, the fifth instruction information does not exist in the PDCCH corresponding to the PDSCH, or the indication is invalid.

[0222] (4) UE determines whether to apply the fourth instruction information in SIB1 or SIBx according to the seventh instruction information in SIB1. If the fourth instruction information is applied, the fifth instruction information exists 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, the fifth instruction information does not exist in the PDCCH corresponding to the PDSCH or the fifth instruction information is invalid.

[0223] In the present example, the fourth instruction information can include at least one of the following: a set of applicable targets (e.g., a set of PDSCH names, a set of RNTI types), a set of repetition numbers, a set of association relationships (the relevant content can be referred to the description above). And any set can have only one element.

[0224] In the case that the fourth instruction information contains a set of applicable targets, based on the fifth instruction information, at least one of the following can be selected from the set: a PDSCH name, a PDSCH name index, an RNTI type, an RNTI type index.

[0225] If the fourth instruction information does not contain a set of applicable targets, the fifth instruction information can indicate at least one of the following: a PDSCH name, an RNTI type.

[0226] If the set of applicable targets is a predefined set, the fifth instruction information can indicate at least one of the following in the predefined set: a PDSCH name, a PDSCH name index, an RNTI type, an RNTI type index. If the predefined set contains only one element, this fifth instruction information can be omitted.

[0227] If the fourth instruction information contains a set of repetition numbers, the fifth instruction information selects at least one of the following from the set: a repetition number, a repetition number index.

[0228] If the fourth instruction information does not contain a set of repetition numbers, the fifth instruction information indicates at least one of the following: a repetition number.

[0229] If the set of repetition numbers is predefined, the fifth instruction information indicates at least one of the following in the predefined set: a repetition number, a repetition number index. If the predefined set contains only one element, this indication information field can be omitted.

[0230] If the fourth instruction information contains a set of association relationships between the downlink channels in the set of applicable targets and the repetition numbers in the set of repetition numbers, at least one of the following is selected from the set: an association relationship between an applicable target and a repetition number, an association relationship index between an applicable target and a repetition number.

[0231] If the fourth instruction information does not contain the association set of the downlink channel in the applicable target set and the repetition number in the repetition number set, the fifth instruction information needs to indicate the association of at least one downlink channel and repetition number. At least the following ways are included:

[0232] 1-to-1 with omission. For example, there is only one predefined or configured applicable target, and only the repetition number can be included. For example, there is only one predefined or configured repetition number, and only the applicable target can be included.

[0233] N-to-1 with omission. For example, there is at least one predefined or configured applicable target, and the same repetition number is used, and only the repetition number can be included.

[0234] 1-to-1, {1 applicable target, 1 repetition number};

[0235] N-to-1, {N applicable targets, 1 repetition number}, where N>=1 in this example;

[0236] N-to-N, {N applicable targets, N repetition numbers}, the applicable targets and the repetition numbers correspond one by one in order;

[0237] N-to-N, N groups of correspondence, {[applicable target 1, repetition number 1], [applicable target 2, repetition number 2] … [applicable target N, repetition number N]};

[0238] N-to-M, N applicable targets, M repetition numbers, multiple applicable targets with the same repetition number are organized together, where M is greater than or equal to N. For example, {[repetition number 1], [applicable target 1, applicable target 2]} + {[repetition number 2], [applicable target 3, applicable target 4, applicable target 5]} + … + {[repetition number M], [applicable target N]}.

[0239] If the association of the downlink channel and the repetition number is a predefined set, the fifth instruction information indicates at least one downlink channel and the association of the repetition number in the predefined set or the index of the association of the downlink channel and the repetition number. If the predefined set only contains one element, this indication can be omitted.

[0240] Based on this, when the downlink channel is repeatedly transmitted to enhance coverage, the terminal can timely and accurately understand the repetition transmission information of the downlink channel, can reduce unnecessary listening time of the downlink channel, and reduce the energy consumption of the terminal. At the same time, when the terminal can accurately determine the repetition transmission information of the downlink channel, even in a poor communication environment, a high communication success rate can be maintained.

[0241] The above describes the scheme of the embodiments of the present disclosure mainly from the perspective of the method. Hereinafter, a signal repetition transmission determination apparatus is also shown, which is configured to perform the signal repetition transmission determination method in any of the above embodiments and possible implementation manners. It can be understood that the signal repetition transmission determination apparatus comprises a hardware structure and / or software module corresponding to the execution of each function in order to implement the signal repetition transmission determination method. It should be easily realized by those skilled in the art that, in combination 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 implemented in hardware or computer software driven hardware depends on the specific application of the technical solution and the design constraint conditions. The skilled person can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present disclosure.

[0242] The embodiments of the present disclosure can divide the signal repetition transmission determination apparatus according to the method embodiments described above, for example, each function module can be divided according to each function, or two or more functions can be integrated into one function module. The above integrated module can be realized in the form of hardware or software. It should be noted that the division of the modules in the embodiments of the present disclosure is illustrative, and is only a logical function division. In actual implementation, there can be another division manner. Hereinafter, taking the division of each function module according to each function as an example for description.

[0243] FIG. 3 is a signal repetition transmission determination apparatus provided by the embodiments of the present disclosure, which is applied to a first node. The signal repetition transmission determination apparatus 300 comprises a processing module 301.

[0244] The processing module 301 is configured to determine repetition 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, and a physical downlink control channel corresponding to the downlink channel.

[0245] In some embodiments, 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.

[0246] In some embodiments, the repetition transmission information at least comprises a repetition transmission number of the downlink channel.

[0247] In some embodiments, the processing module 301 is configured to determine whether the repetition transmission number of the downlink channel is a default value in a predefined repetition number set based on the first instruction information.

[0248] In some embodiments, the processing module 301 is configured to determine the number of repetitions of the downlink channel based on second instruction information, the second instruction information comprising at least one of: 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 comprising at least one repetition number, the repetition number index being used to determine the repetition number in the repetition number set, the applicable target set comprising at least one downlink channel to be repeated, the applicable target index being used to determine the downlink channel to be repeated in the applicable target set, the association relationship set comprising at least one association relationship between the downlink channel to be repeated and the repetition number, and the association relationship index being used to determine the association relationship in the association relationship set.

[0249] In some embodiments, the processing module 301 is configured to determine the number of repetitions of the downlink channel based on third instruction information included in a channel transmitted before the downlink channel, the third instruction information being used to indicate that the number of repetitions of the downlink channel is the same as the number of repetitions of the channel transmitted before the downlink channel.

[0250] In some embodiments, the processing module 301 is configured to determine the repetition information of the downlink channel based on fourth instruction information and fifth instruction information; the fourth instruction information comprising at least one of: an applicable target set, a repetition number set, and an association relationship set; the applicable target set comprising at least one downlink channel to be repeated, the repetition number set comprising at least one repetition number, and the association relationship set comprising at least one association relationship between the downlink channel to be repeated and the repetition number; and the fifth instruction information being used to indicate at least one of: at least one downlink channel to be repeated 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.

[0251] 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.

[0252] 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 in 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 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.

[0253] The processing module 301 is further configured to determine, based on the second instruction information, the repetition transmission information of the downlink channel in a case where the second instruction information is present in the control channel corresponding to the second channel or the downlink channel transmitted before the determination of the application of the downlink channel.

[0254] The second instruction information at least includes at least one of the following: an application target set, an application target index, a repetition number set, a repetition number index, an association relationship set, and an association relationship index. The application target set includes at least one repeatedly transmitted downlink channel, the application target index is used to determine the at least one repeatedly transmitted downlink channel in the application target set, the repetition number set includes at least one repetition number, the repetition number index is used to determine the repetition number in the repetition number set, the association relationship set contains at least one association relationship between the 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.

[0255] In some embodiments, the first channel is located before the second channel.

[0256] In some embodiments, the processing module 301 is configured to determine, based on the seventh instruction information in the first channel transmitted before the downlink channel, whether the fourth instruction information is present in the second channel transmitted before the downlink channel or whether the fourth instruction information in the second channel transmitted before the downlink channel is applied; the fourth instruction information at least includes at least one of the following: an application target set, a repetition number set, and an association relationship set. The application 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 contains at least one association relationship between the repeatedly transmitted downlink channel and the repetition number.

[0257] The processing module 301 is configured to determine, based on the fourth instruction information and the fifth instruction information in the control channel corresponding to the downlink channel, the repetition transmission information of the downlink channel in a case where the fourth instruction information is present in the second channel transmitted before the downlink channel or the fourth instruction information in the second channel transmitted before the downlink channel is applied; the fifth instruction information at least indicates at least one of the following: at least one repeatedly transmitted downlink channel in the application target set, at least one repetition number in the repetition number set, and at least one association relationship in the association relationship set.

[0258] In some embodiments, the first channel is located before the second channel.

[0259] In some embodiments, there is an association relationship between the downlink channel in the application target set and the repetition number in the repetition number set.

[0260] In the case of implementing the functions of the above-mentioned integrated modules in the form of hardware, the embodiments of the present disclosure further provide a structure of a communication device for performing the signal repeated transmission determination method provided by the embodiments of the present disclosure. As shown in FIG. 4, the communication device 400 includes a memory 401, a processor 402, a communication interface 403 and a bus 404.

[0261] The memory 401 can be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, can be a random access memory (RAM) or other type of dynamic storage device that can store dynamic information and instructions, can be an electrically erasable programmable read-only memory (EEPROM), a magnetic disk storage medium or other magnetic storage device, or can be any other medium capable of carrying or storing desired program codes in the form of instructions or data structures and capable of being accessed by a computer, but is not limited thereto.

[0262] The processor 402 can be a logic block, a module and a circuit for implementing or executing the various exemplary methods described in combination with the embodiments of the present disclosure. The processor 402 can 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 device, a transistor logic device, a hardware component or any combination thereof. The processor 402 can also implement or execute the various exemplary logic blocks, modules and circuits described in combination with the embodiments of the present disclosure. The processor 402 can also be a combination of computing functions, such as a combination of one or more microprocessors, a combination of a digital signal processor (DSP) and a microprocessor, etc.

[0263] The communication interface 403 is used to connect with other devices through a communication network. The communication network can be an Ethernet, a wireless access network, a wireless local area network (WLAN), etc.

[0264] As an implementation manner, the memory 401 can exist independently of the processor 402, and the memory 401 can be connected with the processor 402 through the bus 404, for storing instructions or program codes. When the processor 402 invokes and executes the instructions or program codes stored in the memory 401, the signal repeated transmission determination method provided by the embodiments of the present disclosure can be implemented.

[0265] In another implementation, the memory 401 can also be integrated with the processor 402.

[0266] 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 ease of representation, only one thick line is used to represent the bus 404 in FIG. 4, but it does not mean that there is only one bus or only one type of bus.

[0267] Some embodiments of the present disclosure provide a computer readable storage medium (for example, a non-transitory computer readable storage medium) having stored computer program instructions, which, when executed on a computer, cause the computer to perform the signal repetition transmission determination method according to any one of the above embodiments.

[0268] In an exemplary implementation, the computer can be the signal repetition transmission determination apparatus described above, and the present disclosure does not limit the specific form of the computer.

[0269] In some examples, the computer readable storage medium described above can include, but is not limited to, a magnetic storage device (for example, a hard disk, a floppy disk, or a magnetic tape, etc.), an optical disc (for example, a compact disc (CD), a digital versatile disc (DVD), etc.), a smart card, and a flash memory device (for example, an erasable programmable read-only memory (EPROM), a card, a stick, or a key drive, etc.). The various computer readable storage media described in the present disclosure can represent one or more devices and / or other machine readable storage media for storing information. The term "machine readable storage medium" can include, but is not limited to, a wireless channel and various other media capable of storing, containing, and / or carrying instructions and / or data.

[0270] The embodiments of the present disclosure provide a computer program product containing instructions, which, when executed on a computer, cause the computer to perform the signal repetition transmission determination method according to any one of the above embodiments.

[0271] The above description is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any changes or replacements within the technical scope disclosed by the present disclosure should be covered within 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, comprising: determining repetition 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.

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

3. The method of claim 1, wherein wherein The repetition transmission information at least includes the repetition transmission times of the downlink channel.

4. The method of claim 1, wherein, The instruction information includes first instruction information, and the determination of the repetition transmission information of the downlink channel based on the instruction information comprises: determining whether the repetition transmission times of the downlink channel is a default value in a predefined repetition times set based on the first instruction information.

5. The method of claim 1, wherein, The instruction information includes second instruction information, and the determination of the repetition transmission information of the downlink channel based on the instruction information comprises: determining the repetition transmission times of the downlink channel based on the second instruction information, the second instruction information at least includes at least one of the following: a repetition times set, a repetition times index, an applicable target set, an applicable target index, an association relationship set, an association relationship index;The repetition times set includes at least one repetition times, the repetition times index is used to determine at least one repetition times in the repetition times set, the applicable target set includes at least one repetition transmission downlink channel, the applicable target index is used to determine the repetition transmission downlink channel in the applicable target set, the association relationship set contains at least one repetition transmission downlink channel and the association relationship of repetition times, and the association relationship index is used to determine the association relationship in the association relationship set.

6. The method of claim 1, wherein, The instruction information includes third instruction information, and the determination of the repetition transmission information of the downlink channel based on the instruction information comprises: determining the repetition transmission times of the downlink channel based on the third instruction information included in the channel transmitted before the downlink channel, the third instruction information is used to indicate that the repetition transmission times of the downlink channel are the same as the repetition transmission times of the channel transmitted before the downlink channel.

7. The method of claim 1, wherein, The instruction information includes fourth instruction information and fifth instruction information, and the determination of the repetition transmission information of the downlink channel based on the instruction information comprises: determining the repetition transmission information of the downlink channel based on the fourth instruction information and the fifth instruction information;The fourth instruction information at least 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 repetition transmission downlink channel, the repetition times set includes at least one repetition times, and the association relationship set contains at least one repetition transmission downlink channel and the association relationship of repetition times;The fifth instruction information is used to indicate at least one of the following: at least one repetition transmission downlink channel 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.

8. The method of claim 7, wherein, 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.

9. The method of claim 1, wherein, The instruction information comprises sixth instruction information and second instruction information, and the determining of the repetition transmission information of the downlink channel based on the instruction information comprises: determining whether to apply the second instruction information in the second channel transmitted before the downlink channel or in a control channel corresponding to the downlink channel based on the sixth instruction information in the first channel transmitted before the downlink channel, or determining whether the second instruction information exists 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; in a case where it is determined 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 or it is determined that the second instruction information exists in the second channel transmitted before the downlink channel or in the control channel corresponding to the downlink channel, determining the repetition transmission information of the downlink channel based on the second instruction information; wherein the second instruction information comprises at least one of the following: a target set, a target index, a repetition number set, a repetition number index, a correlation set, and a correlation index; the target set comprises at least one repetition transmission downlink channel, the target index is used to determine at least one repetition transmission downlink channel in the target set, the repetition number set comprises at least one repetition number, the repetition number index is used to determine at least one repetition number in the repetition number set, and the correlation set comprises at least one correlation between a repetition transmission downlink channel and a repetition number, and the correlation index is used to determine the correlation in the correlation set.

10. The method of claim 9, wherein, The first channel is located before the second channel.

11. The method of claim 1, wherein, The instruction information comprises seventh instruction information, fourth instruction information, and fifth instruction information, and the determining of the repetition transmission information of the downlink channel based on the instruction information comprises: determining whether the fourth instruction information exists 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 comprises at least one of the following: a target set, a repetition number set, and a correlation set; the target set comprises at least one repetition transmission downlink channel, the repetition number set comprises at least one repetition number, and the correlation set comprises at least one correlation between a repetition transmission downlink channel and a repetition number; In a case that fourth instruction information exists in the second channel transmitted before the downlink channel or the fourth instruction information in the second channel transmitted before the downlink channel is applied, repetition transmission information of the downlink channel is determined based on the fourth instruction information and fifth instruction information in a control channel corresponding to the downlink channel; the fifth instruction information is used at least for indicating at least one of the following: at least one of the downlink channels in the applicable target set, at least one of the repetition times in the repetition time set, and at least one of the association relationships in the association relationship set.

12. The method of claim 11, wherein, The first channel is located before the second channel.

13. The method of any one of claims 5, 7, 9, and 11, wherein, There is an association relationship between the downlink channel in the applicable target set and the repetition time in the repetition time set.

14. A communications device comprising: A memory and a processor; wherein the memory and the processor are coupled; the memory is used for storing instructions executable by the processor; and the processor executes the instructions to perform the signal repetition transmission determination method according to any one of claims 1 to 13.

15. A computer readable storage medium, wherein, The computer readable storage medium has stored thereon computer instructions which, when executed on the communication device, cause the communication device to perform the signal repetition transmission determination method according to any one of claims 1 to 13.

16. A computer program product, wherein, The computer program product, when executed, implements the signal repetition transmission determination method according to any one of claims 1 to 13.

Images