Communication method, apparatus and device, and chip, storage medium, product and program

Abstract

Provided in the embodiments of the present application is a communication method. The method comprises: a terminal device receiving a plurality of first channels, wherein the content carried on the plurality of first channels is the same, the first channels are used for indicating first resources, and the first resources are used for transmitting downlink information.

Description

A communication method, apparatus, device, chip, storage medium, product, and program. Technical Field

[0001] This application relates to the field of communication technology, specifically to a communication method, apparatus, device, chip, storage medium, product, and program. Background Technology

[0002] The Physical Downlink Control Channel (PDCCH) is a critical downlink control channel in communication systems, used to transmit control information such as scheduling instructions, power control commands, and uplink grants. Therefore, improving the transmission reliability of the PDCCH is a pressing issue that needs to be addressed. Summary of the Invention

[0003] This application provides a communication method, apparatus, device, chip, storage medium, product, and program.

[0004] In a first aspect, embodiments of this application provide a communication method, the method comprising: a terminal device receiving a plurality of first channels, the plurality of first channels carrying identical content; wherein, the first channels are used to indicate a first resource, and the first resource is used to transmit downlink information.

[0005] Secondly, embodiments of this application provide a communication method, the method comprising: a network device sending a plurality of first channels, the plurality of first channels carrying identical content; wherein, the first channels are used to indicate a first resource, and the first resource is used to transmit downlink information.

[0006] Thirdly, embodiments of this application provide a communication device applied to a terminal device. The device includes: a first communication unit configured to receive a plurality of first channels, wherein the plurality of first channels carry the same content; wherein the first channels are used to indicate a first resource, and the first resource is used to transmit downlink information.

[0007] Fourthly, embodiments of this application provide a communication device applied to a network device. The device includes: a second communication unit configured to transmit a plurality of first channels, wherein the plurality of first channels carry the same content; wherein the first channels are used to indicate a first resource, and the first resource is used to transmit downlink information.

[0008] Fifthly, embodiments of this application provide a communication device including a processor and a memory. The memory stores computer-executable instructions, and the processor is connected to the memory to execute the computer-executable instructions to implement the aforementioned communication method.

[0009] Sixthly, embodiments of this application provide a chip for implementing the above-described communication method.

[0010] Specifically, the chip includes a processor for retrieving and running a computer program from memory, causing a device equipped with the chip to perform the aforementioned communication method.

[0011] In a seventh aspect, embodiments of this application provide a computer-readable storage medium storing a computer program that, when executed by at least one processor, implements the aforementioned communication method.

[0012] Eighthly, embodiments of this application provide a computer program product including a computer storage medium storing a computer program, the computer program including instructions executable by at least one processor, which, when executed by at least one processor, implement the above-described communication method.

[0013] Ninthly, embodiments of this application provide a computer program that, when run on a computer, causes the computer to execute the above-described communication method.

[0014] In this embodiment, a network device can transmit multiple first channels, and correspondingly, a terminal device can receive multiple first channels, each carrying the same content. The first channels can be used to indicate first resources, which can be used to transmit downlink information. According to the method of this embodiment, transmitting multiple first channels with identical content improves the transmission reliability (or success rate) of the first channels. Furthermore, since the transmission resources for downlink information (i.e., the first resources) can be indicated through the first channels, improving the transmission reliability (or success rate) of the first channels also improves the transmission reliability (or success rate) of the downlink information. Exemplarily, the method of this embodiment is applicable to scenarios where "the first channel carries part of the PDCCH information, and / or, the downlink information includes another part of the PDCCH information." In this scenario, the method of this embodiment can improve the transmission reliability (or success rate) of the PDCCH. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0016] Figure 1 is a schematic diagram of an application scenario of an embodiment of this application;

[0017] Figure 2 is a schematic diagram of the SS / PBCH structure provided in an embodiment of this application;

[0018] Figure 3 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0019] Figure 4 is a schematic diagram of the resources of a plurality of first channel indication control blocks and / or data blocks provided in an embodiment of this application;

[0020] Figure 5 is a schematic diagram of the resources of a plurality of first channel indication control blocks and / or data blocks provided in an embodiment of this application;

[0021] Figure 6 is a schematic diagram of the resources of multiple first channel indication control blocks and / or data blocks provided in the embodiments of this application;

[0022] Figure 7 is a schematic diagram of the structural composition of the communication device provided in an embodiment of this application;

[0023] Figure 8 is a schematic diagram of the structural composition of the communication device provided in an embodiment of this application;

[0024] Figure 9 is a schematic structural diagram of a communication device provided in an embodiment of this application;

[0025] Figure 10 is a schematic structural diagram of a chip according to an embodiment of this application;

[0026] Figure 11 is a schematic block diagram of a communication system provided in an embodiment of this application. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0028] Figure 1 is a schematic diagram of an application scenario of an embodiment of this application.

[0029] As shown in Figure 1, the communication system 100 may include a terminal device 110 and a network device 120. The network device 120 can communicate with the terminal device 110 via an air interface. Multi-service transmission is supported between the terminal device 110 and the network device 120.

[0030] It should be understood that the embodiments of this application are only illustrated by way of example with communication system 100, but the embodiments of this application are not limited thereto. That is to say, the technical solutions of the embodiments of this application can be applied to various communication systems, such as: Long Term Evolution (LTE) system, LTE Time Division Duplex (TDD), Universal Mobile Telecommunication System (UMTS), Internet of Things (IoT) system, Narrow Band Internet of Things (NB-IoT) system, enhanced Machine-Type Communications (eMTC) system, 5G communication system (also known as New Radio (NR) communication system), 6G communication system, or future communication systems, etc.

[0031] In the communication system 100 shown in Figure 1, network device 120 may be an access network device that communicates with terminal device 110. The access network device can provide communication coverage for a specific geographical area and can communicate with terminal device 110 (e.g., UE) located within that coverage area.

[0032] Network device 120 may be an evolved Node B (eNB or eNodeB) in a Long Term Evolution (LTE) system, or a Next Generation Radio Access Network (NG RAN) device, or a base station (gNB) in an NR system, or a base station in a 6G system, or a radio controller in a Cloud Radio Access Network (CRAN), or the network device 120 may be a relay station, access point, vehicle-mounted equipment, wearable device, hub, switch, bridge, router, or network equipment in a future evolved Public Land Mobile Network (PLMN), etc.

[0033] Terminal device 110 can be any terminal device, including but not limited to terminal devices that are connected to network device 120 or other terminal devices via wired or wireless connections.

[0034] For example, the terminal device 110 can refer to an access terminal, user equipment (UE), user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device. The access terminal can be a cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, IoT device, satellite handheld terminal, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a 5G network, terminal device in a 6G network, or terminal device in a future evolved network, etc.

[0035] Terminal device 110 can be used for device-to-device (D2D) communication.

[0036] The communication system 100 may further include a core network device 130 that communicates with the network device 120. This core network device 130 may be a 5G core network (5G Core, 5GC) device, such as an Access and Mobility Management Function (AMF), an Authentication Server Function (AUSF), a User Plane Function (UPF), or a Session Management Function (SMF). In some embodiments, the core network device 130 may also be an Evolved Packet Core (EPC) device for an LTE network, such as a Session Management Function + Core Packet Gateway (SMF+PGW-C) device. It should be understood that SMF+PGW-C can simultaneously implement the functions of both SMF and PGW-C. During network evolution, the aforementioned core network device may also be called by other names, or new network entities may be formed by dividing the core network functions; this embodiment does not limit this.

[0037] The various functional units in the communication system 100 can also establish connections through interfaces to achieve communication.

[0038] For example, terminal devices establish air interface connections with access network devices through the NR interface for transmitting user plane data and control plane signaling; terminal devices can establish control plane signaling connections with the AMF through the N1 interface; access network devices, such as next-generation radio access base stations (gNBs), can establish user plane data connections with the UPF through the NG-U interface (i.e., the N3 interface); access network devices can establish control plane signaling connections with the AMF through the NG-C interface (i.e., the N2 interface); the UPF can establish control plane signaling connections with the SMF through the N4 interface; the UPF can interact with the data network to exchange user plane data through the N6 interface; the AMF can establish control plane signaling connections with the SMF through the N11 interface; and the SMF can establish control plane signaling connections with the PCF through the N7 interface.

[0039] Figure 1 exemplarily illustrates a network device, a core network device, and two terminal devices. Optionally, the communication system 100 may include multiple network devices, and each network device may include other numbers of terminal devices within its coverage area. This application embodiment does not limit this.

[0040] It should be noted that Figure 1 is merely an example illustrating the system to which this application applies. Of course, the method shown in the embodiments of this application can also be applied to other systems. Furthermore, the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship. It should also be understood that "instruction" mentioned in the embodiments of this application can be a direct instruction, an indirect instruction, or an indication of a related relationship. For example, A instructing B can mean that A directly instructs B, for example, B can be obtained through A; it can also mean that A indirectly instructs B, for example, A instructs C, B can be obtained through C; or it can mean that there is a related relationship between A and B. It should also be understood that "correspondence" mentioned in the embodiments of this application can indicate a direct or indirect correspondence between two things, or an related relationship between two things, or a relationship of instruction and being instructed, configuration and being configured, etc. It should also be understood that the "predefined" or "predefined rules" mentioned in the embodiments of this application can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices), and this application does not limit the specific implementation method. For example, predefined can refer to those defined in a protocol. It should also be understood that in the embodiments of this application, the "protocol" can refer to standard protocols in the field of communication, such as LTE protocol, NR protocol, and related protocols applied to future communication systems, and this application does not limit this.

[0041] To facilitate understanding of the technical solutions of the embodiments of this application, the relevant technologies of the embodiments of this application are described below. The following relevant technologies are optional solutions and can be combined with the technical solutions of the embodiments of this application in any way, and they all fall within the protection scope of the embodiments of this application.

[0042] 1. Design Mechanism of Physical Downlink Control Channel (PDCCH)

[0043] In 5G NR and other systems (such as LTE), the control channel uses a single-slot, multi-symbol transmission method. A PDCCH can be transmitted in a search space, which is mapped to a control channel resource CORESET.

[0044] 2. Control Resource Set (CORESET)

[0045] In 5G NR systems, the concept of CORESET is introduced to define a set of time-frequency resources that carry control information. The UE detects the NR-PDCCH channel within this set of time-frequency resources to obtain scheduling information. The configuration information of CORESET mainly includes the following:

[0046] The physical resource blocks (PRBs) occupied by CORESET;

[0047] The number of consecutive orthogonal frequency division multiplexing (OFDM) symbols occupied by CORESET;

[0048] Initial value of the scrambling sequence for the PDCCH demodulation reference signal (DMRS);

[0049] Precoding granularity in the frequency domain;

[0050] The mapping type between Control Channel Element (CCE) and Resource Element Group (REG);

[0051] Quasi-co-address information for antenna ports: This information is used to indicate the quasi-co-address information of the DMRS antenna ports used for PDCCH reception. This information is selected from the TCI-States configured by higher-layer signaling and configured to the terminal via MAC CE.

[0052] Indicates whether the Transmission Configuration Indication (TCI) field appears in DCI format 1_1.

[0053] 3. NR's PDCCH Search Space Set

[0054] NR UE PDCCH monitoring is performed within a PDCCH search space set. Each different aggregation level of candidates constitutes a search space, and a search space set consists of multiple search spaces. The configuration information for the PDCCH search space set includes the following:

[0055] Search space collection ID;

[0056] controlResourceSetId: Indicates the configuration ID of the control resource set, which configures the time-frequency resources of the PDCCH search space set;

[0057] The period of the listening time slot and the offset within the period; currently, NR supports periods of 1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 160, 320, 640, 1280, and 2560 time slots;

[0058] The starting symbol of the listening time slot;

[0059] Duration: Indicates the number of time slots continuously monitored from the start of a cycle in the PDCCH search space set;

[0060] monitoringSymbolsWithinSlot: Indicates which symbols are monitored for PDCCH within the time slot of PDCCH monitoring;

[0061] PDCCH candidates: Indicates the configuration information of PDCCH candidates; it includes information on the number of candidates at each aggregation level.

[0062] Search space type: Indicates whether the PDCCH search space is a common search space or a UE-specific search space.

[0063] 4. PDCCH detection

[0064] The network sends Downlink Control Information (DCI) to the terminal. DCI is used for downlink scheduling (e.g., scheduling PDSCH) or uplink granting (e.g., scheduling PUSCH), or for transmitting common control information. DCI is carried over PDCCH. The network configures a search space for the terminal, which can be configured with different aggregation levels (AL). At each aggregation level, the number of candidate PDCCHs the terminal needs to monitor is configured. The terminal needs to perform blind PDCCH detection in the search space. The maximum number of PDCCHs the terminal can blindly detect in a time slot is related to the subcarrier spacing. For example, with a 15kHz subcarrier spacing, the maximum number of PDCCHs the terminal can detect in a time slot is 44. Refer to Table 1; μ values ​​of 0, 1, 2, and 3 correspond to subcarrier spacings of 15kHz, 30kHz, 60kHz, and 120kHz, respectively.

[0065] Table 1

[0066] In 5G NR systems, DCI uses Polar encoding. Each time the terminal detects PDCCH, it needs to perform decoding, which leads to higher power consumption and increased processing latency.

[0067] A PDCCH's transmission resources can include M1 CCEs, corresponding to different aggregation levels. For example, the relationship between aggregation levels M1 = 1, 2, 4, 8, 16, 32 and the number of CCEs is shown in Table 2. Each CCE can include M2 ​​REGs, for example, M2 = 6. One REG corresponds to one PRB in the frequency domain and one OFDM symbol in the time domain. The transmission reliability varies depending on the number of CCEs occupied by the PDCCH; for example, the more CCEs a PDCCH occupies, the higher its transmission reliability.

[0068] Table 2

[0069] 5. SS / PBCH block (SSB) of the NR system

[0070] During communication, the terminal obtains synchronization based on the synchronization signal (SS) sent by the network and then performs subsequent data reception or transmission. It also obtains the master information block (MIB) based on the physical broadcast channel (PBCH) sent by the network. The NR network transmits synchronization signals and PBCH in the form of SS / PBCH blocks. The synchronization signals include the Primary Synchronization Signal (PSS) and the Secondary Synchronization Signal (SSS). Specifically, the structure of the SS / PBCH is shown in Figure 2: the frequency domain size of the SS / PBCH block is 20 PRBs, and the time domain occupies 4 OFDM symbols. The PSS and SSS are located in the first and third OFDM symbols, respectively, with a sequence length of 127, mapped to the middle 12 PRBs of the 20 PRBs. The PBCH is located in the second and fourth OFDM symbols, and on some subcarriers of the third OFDM symbol. In the second and fourth OFDM symbols, the PBCH (including PBCH DMRS) is mapped to all subcarriers corresponding to the 20 PRBs (a total of 240 subcarriers). In the third OFDM symbol, the PBCH (including PBCH DMRS) is mapped to all subcarriers corresponding to the 20 PRBs. DMRS is mapped to the four PRBs with the lowest frequency domain position and the four PRBs with the highest frequency domain position among the 20 PRBs.

[0071] Within a cycle, different SSBs can use different beams for transmission.

[0072] The above provides a brief explanation of the relevant technologies / terms involved in this application, which will not be repeated in the following embodiments.

[0073] The PDCCH is a critical downlink control channel in communication systems, used to transmit control information such as scheduling instructions, power control commands, and uplink grants. Therefore, improving the transmission reliability of the PDCCH is a pressing issue that needs to be addressed.

[0074] In view of the above, this application provides a communication method, apparatus, device, chip, storage medium, product, and program. In this method, a network device can transmit multiple first channels, and correspondingly, a terminal device can receive multiple first channels, wherein the multiple first channels can carry the same content; wherein, the first channels can be used to indicate first resources, and the first resources can be used to transmit downlink information.

[0075] According to the method of this application embodiment, by transmitting multiple first channels with identical content, the transmission reliability (or success rate) of the first channels can be improved. Furthermore, since the transmission resources for downlink information (i.e., the first resources) can be indicated through the first channels, the transmission reliability (or success rate) of the downlink information can also be improved when the transmission reliability (or success rate) of the first channels is improved. Exemplarily, the method of this application embodiment can be applied to scenarios where "the first channel carries part of the PDCCH information, and / or, the downlink information includes another part of the PDCCH information." In this scenario, the method of this application embodiment can improve the transmission reliability (or success rate) of the PDCCH.

[0076] To facilitate understanding of the technical solutions of the embodiments of this application, the technical solutions of this application are described in detail below through specific embodiments. The above-mentioned related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0077] Figure 3 is a flowchart illustrating the communication method provided in an embodiment of this application. As shown in Figure 3, the method may include the following steps:

[0078] S301, the terminal device receives multiple first channels, the multiple first channels carrying the same content; wherein, the first channel is used to indicate a first resource, and the first resource is used to transmit downlink information.

[0079] In this embodiment, the network device may send multiple first channels (e.g., the network device may send multiple first channels to the terminal device), and correspondingly, the terminal device may receive multiple first channels (e.g., the terminal device may receive multiple first channels sent by the network device), and these multiple first channels may carry the same content. The first channels may be used to indicate a first resource, and the first resource may be used to transmit downlink information.

[0080] In some embodiments, the content carried by the first channel can be used to indicate that downlink information will be transmitted subsequently. Thus, upon receiving the first channel, the terminal device can know that downlink information will be transmitted subsequently. Furthermore, the terminal device can detect / receive downlink information sent by the network device on the first resource indicated by the first channel.

[0081] In some embodiments, the downlink information may include downlink control information and / or downlink data.

[0082] According to the method of this embodiment, the network device can send multiple first channels with identical content, and correspondingly, the terminal device can receive multiple first channels with identical content, thereby improving the transmission reliability (or success rate) of the first channel. Furthermore, since the transmission resources for downlink information (i.e., the first resources) can be indicated through the first channel, the transmission reliability (or success rate) of the downlink information can also be improved when the transmission reliability (or success rate) of the first channel is improved.

[0083] In some embodiments, the time-domain location of the first channel can be used to indicate the time-domain location of the first resource; and / or, the frequency-domain location of the first channel can be used to indicate the frequency-domain location of the first resource.

[0084] For example, the time domain location of the first channel can also be understood as: the time domain location where the time domain resources used to transmit the first channel are located; the frequency domain location of the first channel can also be understood as: the frequency domain location where the frequency domain resources used to transmit the first channel are located.

[0085] For example, the time-domain location of the first channel can be used to indicate the time-domain location of the first resource. That is, the time-domain location of the first resource can be determined based on the time-domain location of the first channel.

[0086] In one implementation, there may be a certain time-domain offset between the time-domain location of the first channel and the time-domain location of the first resource indicated by the first channel. In this way, after receiving the first channel, the terminal device can determine the time-domain location of the first resource based on the time-domain location of the first channel and the time-domain offset.

[0087] As an example, the time-domain offset between the time-domain location of the first channel and the time-domain location of the first resource indicated by the first channel may include one or more of the following: the time-domain offset between the start time-domain location or the end time-domain location of the first channel and the start time-domain location or the end time-domain location of the first resource; the time-domain offset between the start time-domain location or the end time-domain location of the time slot in which the first channel is located and the start time-domain location or the end time-domain location of the time slot in which the first resource is located.

[0088] As an example, the aforementioned time-domain offset can be pre-configured, predefined, or configured by the network device.

[0089] According to the method of this embodiment, the time-domain location of the first resource can be indicated by the time-domain location of the first channel. Thus, after receiving the first channel sent by the network device, the terminal device can determine the time-domain location of the first resource based on the time-domain location of the first channel, and subsequently detect / receive downlink information sent by the network device at the time-domain location of the first resource.

[0090] For example, the frequency domain location of the first channel can be used to indicate the frequency domain location of the first resource. That is, the frequency domain location of the first resource can be determined based on the frequency domain location of the first channel.

[0091] In one implementation, there may be a certain frequency domain offset between the frequency domain location of the first channel and the frequency domain location of the first resource indicated by the first channel. In this way, after receiving the first channel, the terminal device can determine the frequency domain location of the first resource based on the frequency domain location of the first channel and the frequency domain offset.

[0092] As an example, the frequency domain offset between the frequency domain position of the first channel and the frequency domain position of the first resource indicated by the first channel may include: the frequency domain offset between the start or end frequency domain position of the first channel and the start or end frequency domain position of the first resource.

[0093] As an example, the frequency domain offset mentioned above can be pre-configured, predefined, or configured by the network device.

[0094] According to the method of this embodiment, the frequency domain location of the first resource can be indicated by the frequency domain location of the first channel. Thus, after receiving the first channel sent by the network device, the terminal device can determine the frequency domain location of the first resource based on the frequency domain location of the first channel, and subsequently detect / receive downlink information sent by the network device at the frequency domain location of the first resource.

[0095] In some embodiments, different first channels may occupy different time units. For example, the plurality of first channels may include first channel #1 and first channel #2, wherein first channel #1 may occupy time unit #a and first channel #2 may occupy time unit #b.

[0096] For example, a time unit may include one or more symbols.

[0097] For example, a time unit may include one symbol, with channel #1 occupying symbol #a and channel #2 occupying symbol #b. Alternatively, a time unit may include multiple symbols, with channel #1 occupying symbols #a through #b and channel #2 occupying symbols #c through #d.

[0098] According to the method of this embodiment, the network device can transmit the first channel in multiple different time units, thereby improving the transmission reliability (or success rate) of the first channel.

[0099] In some embodiments, the plurality of first channels may be located within one or more time slots. Alternatively, the time-domain resources of the plurality of first channels may be located within one or more time slots.

[0100] As an example, the multiple first channels may reside within a single time slot. That is, the multiple first channels can be transmitted within the same time slot. For instance, a network device may send the multiple first channels to a terminal device within the same time slot.

[0101] In another example, the multiple first channels may reside within multiple time slots. That is, the multiple first channels can be transmitted within the time range corresponding to multiple time slots. For example, a network device can transmit the multiple first channels within the time range corresponding to multiple time slots.

[0102] In one implementation, some of the multiple first channels are located in the same time slot, while others are located in different time slots. For example, the multiple first channels include first channel #1, first channel #2, and first channel #3, wherein first channel #1 and first channel #2 may be located in time slot #a, and first channel #3 may be located in time slot b.

[0103] As another implementation, each of the plurality of first channels may be located in a separate time slot. For example, the plurality of first channels may include first channel #1, first channel #2, and first channel #3, wherein first channel #1 may be located in time slot #a, first channel #2 may be located in time slot #b, and first channel #3 may be located in time slot #c.

[0104] In some embodiments, the plurality of first channels can be transmitted using multiple spatial resources. That is, the network device can use multiple spatial resources to transmit the plurality of first channels.

[0105] For example, the spatial resources in the embodiments of this application may be beams.

[0106] In some scenarios, the "space resources" in the embodiments of this application may also be referred to as "space transmission resources" or "space launch resources".

[0107] In one implementation, some of the multiple first channels transmit through the same spatial resources, while others transmit through different spatial resources. For example, the multiple first channels include first channel #1, first channel #2, and first channel #3, wherein first channel #1 and first channel #2 can be transmitted through spatial resource #a, and first channel #3 can be transmitted through spatial resource #b.

[0108] As another implementation, each of the plurality of first channels can be transmitted through a separate spatial resource. For example, the plurality of first channels includes first channel #1, first channel #2, and first channel #3, wherein first channel #1 can be transmitted through spatial resource #a, first channel #2 can be transmitted through spatial resource #b, and first channel #3 can be transmitted through spatial resource #c.

[0109] According to the method of this embodiment, the network device can use multiple spatial resources to send multiple first channels, thereby increasing the spatial coverage of the first channels and thus improving the transmission reliability (or success rate) of the first channels.

[0110] In some embodiments, the plurality of spatial resources may include a first spatial resource, and the number of first channels through which transmission is performed may be one or more. Exemplarily, the first spatial resource may be any one of the plurality of spatial resources.

[0111] In other words, a network device can use multiple spatial resources to transmit the first channel separately, and can use one of the spatial resources (such as the first spatial resource) to transmit one or more first channels.

[0112] For example, a network device may use multiple spatial resources (e.g., including spatial resource #a, spatial resource #b, and spatial resource #c) to transmit a first channel, wherein the number of first channels transmitted by the network device using the first spatial resources (e.g., spatial resource #a, spatial resource #b, or spatial resource #c) is one or more.

[0113] In some embodiments, when there are multiple first channels transmitted through the first spatial resources, the multiple first channels transmitted through the first spatial resources are located within one or more time slots.

[0114] In other words, when a network device uses the first spatial resources to send multiple first channels, the multiple first channels may be located in the same time slot, or the multiple first channels may be located within the time range corresponding to multiple time slots.

[0115] In some embodiments, the plurality of spatial resources may include a first spatial resource, and a first channel transmitted through the first spatial resource may be located within a first time unit (or, the time domain resource of the first channel may be located within the first time unit), and the first time unit is associated with the first spatial resource (or, the first time unit is associated with the first spatial resource).

[0116] Thus, based on the relationship between time units and spatial resources, it can be determined which spatial resource should be used to transmit the first channel within that time unit. For example, if it is known that a first time unit and a first spatial resource are associated (or that the first time unit and the first spatial resource are related), then it can be determined that the first spatial resource should be used to transmit the first channel within the first time unit. In this case, the network device can use the first spatial resource to transmit the first channel that needs to be transmitted within the first time unit.

[0117] In some embodiments, the association between time units and spatial resources may be pre-configured, pre-defined, or configured by network devices. For example, the association between a first time unit and a first spatial resource may be pre-configured, pre-defined, or configured by network devices.

[0118] In some embodiments, a time unit may be associated with a spatial resource, including the following situations: the index of the time unit is associated with the spatial resource.

[0119] In other words, for a given time unit, if the index of that time unit is associated with a certain spatial resource (or, in other words, the index of that time unit is related to a certain spatial resource), then it can be considered that the time unit and the spatial resource are associated (or, in other words, the time unit and the spatial resource are related). For example, for a first time unit, if the index of the first time unit is associated with a first spatial resource, then it can be considered that the first time unit and the first spatial resource are associated.

[0120] In some embodiments, a time unit is associated with a spatial resource, which may include the following: the index of the time slot in which the time unit is located is associated with the spatial resource.

[0121] In other words, for a given time unit, if the index of the time slot containing that time unit is associated with a certain spatial resource (or, in other words, the index of the time slot containing that time unit is associated with a certain spatial resource), then it can be considered that the time unit and the spatial resource are associated (or, in other words, the time unit and the spatial resource are associated). For example, for a first time unit, if the index of the time slot containing the first time unit is associated with a first spatial resource, then it can be considered that the first time unit and the first spatial resource are associated.

[0122] In some embodiments, the first spatial resource is the spatial resource used for transmitting the first synchronization signal block (SSB).

[0123] In other words, the first time unit is associated with the space resources used to transmit the first SSB (or, the first time unit is associated with the space resources used to transmit the first SSB). In this case, the space resources used to transmit the first SSB can be used to transmit the first channel transmitted within the first time unit.

[0124] Thus, based on the association between time units and the spatial resources used to transmit SSBs, it can be determined which SSB's spatial resources should be used to transmit the first channel within that time unit. For example, if it is known that a first time unit is associated with the spatial resources used to transmit the first SSB (or in other words, the first time unit is associated with the spatial resources used to transmit the first SSB), then it can be determined that the spatial resources used to transmit the first SSB should be used to transmit the first channel within the first time unit. In this case, the network device can use the spatial resources used to transmit the first SSB to transmit the first channel that needs to be transmitted within the first time unit.

[0125] In some embodiments, the association between a time unit and spatial resources used to transmit an SSB can be pre-configured, pre-defined, or configured by a network device. For example, the association between a first time unit and spatial resources used to transmit a first SSB can be pre-configured, pre-defined, or configured by a network device.

[0126] In some embodiments, the plurality of spatial resources may include a first spatial resource for transmitting a first SSB, a first channel transmitted through the first spatial resource being located at a first time-domain location (or, the time-domain resource of the first channel being located at a first time-domain location), and the first time-domain location being associated with the time-domain location of the first SSB (or, the first time-domain location being associated with the time-domain location of the first SSB).

[0127] In other words, the first spatial resource can be used to transmit the first channel at the first time domain location and can also be used to transmit the first SSB, wherein the first time domain location and the time domain location of the first SSB are related.

[0128] Thus, based on the correlation between the time-domain location of the first channel and the time-domain location of the SSB, it can be determined which SSB's spatial resources should be used for transmission of the first channel. For example, if the time-domain location of a certain first channel is a first time-domain location, and if it is known that there is a correlation between the first time-domain location and the time-domain location of the first SSB (or, in other words, the first time-domain location is associated with the time-domain location of the first SSB), then it can be determined that the spatial resources used to transmit the first channel are the spatial resources used to transmit the first SSB.

[0129] In some embodiments, the association between the time-domain location of the first channel and the time-domain location of the SSB can be pre-configured, pre-defined, or configured by the network device. For example, the association between the first time-domain location and the time-domain location of the first SSB can be pre-configured, pre-defined, or configured by the network device.

[0130] In some embodiments, a time interval (such as a first time interval) may exist between the time-domain location of the first channel and the time-domain location of the associated SSB. This time interval may be pre-configured, pre-defined, or configured by the network device. For example, a first time interval may exist between the first time-domain location and the time-domain location of the first SSB. This first time interval may be pre-configured, pre-defined, or configured by the network device.

[0131] Thus, the time domain location of the associated SSB can be determined based on the time domain location of the first channel and the time interval (such as the first time interval), thereby determining which SSB's spatial resources the first channel should use for transmission.

[0132] For example, if the time domain location of a certain first channel is a first time domain location, then, based on the first time domain location and the first time interval, the time domain location of the associated SSB can be determined as the time domain location of the first SSB (or, the first time domain location can be determined to be associated with the time domain location of the first SSB). Furthermore, the spatial resources used to transmit the first channel can be determined as the spatial resources used to transmit the first SSB.

[0133] According to the method of this embodiment, the spatial resources required by the network device when transmitting / sending the first channel are defined.

[0134] In some embodiments, the plurality of spatial resources may include a first spatial resource, and the first resource indicated by the first channel transmitted through the first spatial resource may be used to transmit first downlink information; the spatial resource used to transmit the first downlink information is associated with the first spatial resource.

[0135] In other words, if a network device uses the first resource indicated by the first channel of the first spatial resource transmission to transmit the first downlink information, then the spatial resource used by the network device when sending the first downlink information is related to the first spatial resource, or in other words, the network device can use the spatial resource related to the first spatial resource to send the first downlink information.

[0136] In one implementation, the spatial resources used to transmit the first downlink information are referred to as the first spatial resources. That is, if the network device uses the first spatial resources to transmit the first channel, the first resources indicated by the first resource are used to transmit the first downlink information, then the network device can use the first spatial resources to transmit the first downlink information.

[0137] In some embodiments, the plurality of first channels (i.e., the plurality of first channels sent by the network device to the terminal device) may include a first channel transmitted within a first time unit, and the first resource indicated by the first channel transmitted within the first time unit may be used to transmit first downlink information; the spatial resources used to transmit the first downlink information are associated with the first time unit.

[0138] For example, the spatial resources used for transmitting the first downlink information are associated with the first time unit, and may include one of the following: the spatial resources used for transmitting the first downlink information are associated with the index of the first time unit; or the spatial resources used for transmitting the first downlink information are associated with the index of the time slot in which the first time unit is located.

[0139] In other words, if the first resource indicated by the first channel sent by the network device in the first time unit is used to transmit the first downlink information, then the spatial resources used by the network device when sending the first downlink information are related to the first time unit, or in other words, the network device can use the spatial resources related to the first time unit to send the first downlink information.

[0140] In some embodiments, the association between time units and spatial resources can be pre-configured, pre-defined, or configured by network devices. Thus, the spatial resources associated with a time unit (such as a first time unit) can be determined based on this association.

[0141] According to the method of this embodiment, the spatial resources required by the network device when transmitting / sending downlink information (such as first downlink information) are defined.

[0142] In some embodiments, for one of the plurality of first channels (i.e., the plurality of first channels sent by the network device to the terminal device), the first channel and the first resource indicated by the first channel may be located in the same or different time slots.

[0143] For example, for one of the plurality of first channels, the first channel and the first resource indicated by the first channel may be located in the same time slot, or in other words, the time-domain resource of the first channel and the first resource indicated by the first channel may be located in the same time slot. For instance, if a network device sends a plurality of first channels to a terminal device, including a first channel #1, and the first channel #1 is used to indicate a first resource #1, then the first channel #1 and the first resource #1 may be located in the same time slot, or in other words, the time-domain resource of the first channel #1 and the first resource #1 may be located in the same time slot.

[0144] In another example, for one of the plurality of first channels, the first channel and the first resource indicated by the first channel may be located in different time slots, or in other words, the time-domain resource of the first channel and the first resource indicated by the first channel may be located in different time slots. For example, if a network device sends a plurality of first channels to a terminal device, including a first channel #1, which is used to indicate a first resource #1, then the first channel #1 and the first resource #1 may be located in different time slots, or in other words, the time-domain resource of the first channel #1 and the first resource #1 may be located in different time slots. For example, the first channel #1 may be located in a first time slot (or the time-domain resource of the first channel #1 may be located in a first time slot), and the second channel #2 may be located in a second time slot.

[0145] In some embodiments, one of the plurality of first channels (i.e., the plurality of first channels sent by the network device to the terminal device) may be located in a first time slot, and the first resource indicated by the first channel may be located in a second time slot, wherein the first time slot and the second time slot may be adjacent or not adjacent.

[0146] As an example, one of the plurality of first channels may be located in a first time slot, and the first resource indicated by the first channel may be located in a second time slot, with the first and second time slots being adjacent. That is, for a given first channel, the time slot in which the first channel is located and the time slot in which the first resource indicated by the first channel is located may be adjacent time slots.

[0147] In another example, one of a plurality of first channels may be located within a first timeslot, and the first resource indicated by that first channel may be located within a second timeslot, with the first and second timeslots not being adjacent. For example, there may be at least one timeslot interval between the first and second timeslots. That is, for a given first channel, the timeslot in which the first channel is located and the timeslot in which the first resource indicated by the first channel is located may be non-adjacent timeslots. For example, there may be at least one timeslot interval between the timeslot in which the first channel is located and the timeslot in which the first resource indicated by the first channel is located. This ensures that the terminal device has more time to decode the received first channels.

[0148] In some embodiments, the downlink information transmitted within a first resource indicated by the plurality of first channels includes multiple sets of downlink information, the multiple sets of downlink information having the same content.

[0149] For example, if a network device sends M first channels to a terminal device, and these M first channels indicate M first resources, then within the resource range corresponding to these M first resources, the network device can transmit multiple sets of downlink information, and each set of downlink information can contain the same content.

[0150] According to the method of this embodiment, the network device can send multiple sets of downlink information with the same content, thereby improving the transmission reliability (or success rate) of the downlink information.

[0151] In some embodiments, the locations of the first resources indicated by the different first channels may be the same or different.

[0152] For example, the network device sends multiple first channels to the terminal device, including first channel #1 and first channel #2, wherein the first resource indicated by first channel #1 and the first resource indicated by first channel #2 may be located in the same resource location, or they may be located in different resource locations.

[0153] In some embodiments, the information carried by the first channel may be a first portion of information in the PDCCH; and / or, the aforementioned downlink information may include a second portion of information in the PDCCH. For example, the second portion of information may be information from the payload portion of the PDCCH.

[0154] In some embodiments, the aforementioned downlink information may be information carried by the PDCCH. In this case, the first channel may be considered as indicating the transmission resources of the PDCCH.

[0155] According to the method of this embodiment, the transmission reliability (or success rate) of the first channel and downlink information can be improved, that is, the transmission reliability (or success rate) of PDCCH can be improved.

[0156] In some embodiments, the information carried by the first channel may be based on sequence modulation, or in other words, the first channel may be based on sequence modulation, or the first channel may be transmitted in a sequence manner. As an example, the sequence may include complex (vector) sequences such as CAZAC sequences (constant amplitude zero autocorrelation sequences) and ZC (Zaddoff Chu) sequences, or real sequences such as PN sequences (pseudo-random sequences), Gold sequences, M sequences, and Hadamard sequences.

[0157] In some embodiments, the downlink information described above can be modulated based on channel coding. For example, the original downlink information can be channel coded to form an encoded bit sequence, which can be modulated onto a modulation symbol, and finally the modulation symbol can be mapped onto the corresponding OFDM symbol.

[0158] The communication method provided in the embodiments of this application will be described in detail below with reference to specific application scenarios.

[0159] Option 1

[0160] In some embodiments, a network device may transmit a plurality of first channels, and a terminal device may receive the plurality of first channels accordingly. Each first channel may respectively indicate resources for transmitting control blocks (such as downstream control blocks) and / or data blocks (such as downstream data blocks).

[0161] For example, "first channel" may also be called "detection indication channel", "sequence" or "first-level sequence"; "control block" may also be called "second-level control block"; "data block" may also be called "second-level data block".

[0162] In some embodiments, the plurality of first channels may be transmitted via a plurality of spatial resources. For example, the spatial resources may be beams.

[0163] In some embodiments, the plurality of first channels may be transmitted in one or more OFDM symbols in one time slot, and the first channels transmitted by different symbols may use different spatial resources.

[0164] Figure 4 is a schematic diagram of the resources of multiple first channel indication control blocks and / or data blocks provided in an embodiment of this application. As shown in Figure 4, the network device can send four first channels to the terminal device, and each first channel can occupy one symbol (or other time-domain unit). Exemplarily, the first first channel can be transmitted using beam 1, the second first channel can be transmitted using beam 2, the third first channel can be transmitted using beam 3, and the fourth first channel can be transmitted using beam 4.

[0165] In some embodiments, multiple sets of first channels can transmit the same information. For example, Figure 4 includes four (four sets) of first channels that can transmit the same information.

[0166] In some embodiments, multiple sets of control blocks may transmit the same information, and / or multiple sets of data blocks may transmit the same information.

[0167] In some embodiments, the index of the OFDM symbol of the first channel is associated with the spatial resources of the SSB. For example, if the index of the OFDM symbol containing the first channel #1 is associated with the spatial resources of SSB #1, then the network device can use the spatial resources of SSB #1 to transmit the first channel #1.

[0168] In some embodiments, the first channel is associated with the spatial resources of the indicated control block and / or data block.

[0169] For example, for a certain first channel, the spatial resources of the first channel may be associated with the spatial resources of the control block and / or data block indicated by the first channel. For instance, the first channel #1 may indicate resources for transmitting control block #1 and / or data block #1, then there may be an association between the spatial resources of the first channel #1 and the spatial resources of control block #1 and / or data block #1. As one implementation, the spatial resources of the first channel #1 may be the same as the spatial resources of control block #1 and / or data block #1.

[0170] For example, for a certain first channel, the index of the OFDM symbol of the first channel may be associated with the spatial resources of the control block and / or data block indicated by the first channel. For example, if the first channel #1 may indicate resources for transmitting control block #1 and / or data block #1, then there may be an association between the index of the OFDM symbol of the first channel #1 and the spatial resources of control block #1 and / or data block #1.

[0171] In some embodiments, the resource element of the first channel is associated with the resource location mapped to the indicated control block and / or data block. For example, there is a certain offset between the location of the resource element of the first channel and the resource location mapped to the indicated control block and / or data block.

[0172] In some embodiments, the terminal device may determine the location of the resource unit of the indicated control block and / or data block by means of configuration information and a first channel.

[0173] For example, this configuration information can be used to configure time-domain offset and / or frequency-domain offset, wherein the time-domain offset is the offset between the time-domain position of the first channel and the time-domain position of the resource unit of the indicated control block and / or data block, and the frequency-domain offset is the offset between the frequency-domain position of the first channel and the frequency-domain position of the resource unit of the indicated control block and / or data block. Thus, the terminal device can determine the time-domain position of the resource unit of the indicated control block and / or data block based on the time-domain offset and the time-domain position of the first channel, and / or can determine the frequency-domain position of the resource unit of the indicated control block and / or data block based on the frequency-domain offset and the frequency-domain position of the first channel.

[0174] In some embodiments, the first channel has a different modulation scheme than the indicated control block and / or data block.

[0175] In some embodiments, the first channel may be based on sequence modulation, or in other words, the first channel may be transmitted in a sequence manner.

[0176] For example, the information carrying method of the first channel is to modulate the sequence of indication information (i.e., the information carried by the first channel) onto one or more OFDM symbols. As an example, the sequence may include complex (vector) sequences such as CAZAC sequences (constant amplitude zero autocorrelation sequences) and ZC (Zaddoff Chu) sequences, or PN sequences (pseudo-random sequences), Gold sequences, M sequences, Hadamard sequences, or other real sequences.

[0177] In some embodiments, the control block and / or data block may be based on channel-coded OFDM modulation. The control and data portions may be mapped and coded independently or jointly.

[0178] For example, the transmission of control block and / or data block channels (i.e., channels for transmitting control blocks and / or data blocks) can be based on OFDM modulation. That is, the original information is encoded into a bit sequence through channel encoding and decoding, and this bit sequence can be directly modulated onto modulation symbols. Finally, multiple modulation symbols can be mapped onto the corresponding OFDM symbols of control blocks and / or data blocks.

[0179] For example, the multiplexing of multiple control block and / or data block channels may include frequency domain multiplexing.

[0180] In some embodiments, the terminal device can determine the resource units and resource granularity of the first channel through a blind detection sequence, and then determine the resource granularity of the indicated control block and / or data block. For example, the terminal device can perform blind detection according to different sequence lengths. If the resource granularity of the detected sequence is a first granularity (such as the minimum granularity), then the resource of the control block and / or data block indicated by the sequence is also a first granularity (such as the minimum granularity).

[0181] Option 2

[0182] In some embodiments, a network device may transmit a plurality of first channels, and a terminal device may receive the plurality of first channels accordingly. Each first channel may respectively indicate resources for transmitting control blocks (such as downstream control blocks) and / or data blocks (such as downstream data blocks).

[0183] For example, "first channel" may also be called "detection indication channel", "sequence" or "first-level sequence"; "control block" may also be called "second-level control block"; "data block" may also be called "second-level data block".

[0184] In some embodiments, the plurality of first channels may be transmitted via a plurality of spatial resources. For example, the spatial resources may be beams.

[0185] In some embodiments, the plurality of first channels may be transmitted separately in OFDM symbols in multiple time slots, and the first channels transmitted by different symbols may use different spatial resources.

[0186] Figure 5 is a schematic diagram of the resources of multiple first channel indication control blocks and / or data blocks provided in an embodiment of this application. As shown in Figure 5, the network device can send four first channels to the terminal device. Different first channels can be located in different time slots, and each first channel can occupy one symbol (or other time-domain unit). For example, the first first channel can be sent using beam 1, the second first channel can be sent using beam 2, the third first channel can be sent using beam 3, and the fourth first channel can be sent using beam 4.

[0187] In some embodiments, multiple sets of first channels can transmit the same information. For example, Figure 5 includes four (four sets) of first channels that can transmit the same information.

[0188] In some embodiments, multiple sets of control blocks may transmit the same information, and / or multiple sets of data blocks may transmit the same information.

[0189] In some embodiments, the index of the time slot where the OFDM symbol of the first channel is located is associated with the spatial resources of the SSB. For example, if the index of the time slot where the OFDM symbol of the first channel #1 is located is associated with the spatial resources of SSB #1, then the network device can use the spatial resources of SSB #1 to transmit the first channel #1.

[0190] In some embodiments, the first channel and the indicated control block and / or data block may be located in different time slots. For example, the first channel #1 may be located in time slot #1, and the control block and / or data block indicated by the first channel #1 may be located in time slot #2.

[0191] In some embodiments, there is a certain time slot offset (or a certain time interval) between the time slot where the first channel is located and the time slot where the indicated control block and / or data block is located; or, the time slot where the first channel is located is adjacent to the time slot where the indicated control block and / or data block is located. For example, the first channel #1 is located in time slot #1, and the control block and / or data block indicated by the first channel #1 is located in time slot #2, wherein there is a certain time slot offset (or a certain time interval) between time slot #1 and time slot #2, or, time slot #1 and time slot #2 are adjacent time slots.

[0192] In some embodiments, the first channel is associated with the spatial resources of the indicated control block and / or data block.

[0193] For example, for a certain first channel, the spatial resources of the first channel may be associated with the spatial resources of the control block and / or data block indicated by the first channel. For instance, the first channel #1 may indicate resources for transmitting control block #1 and / or data block #1, then there may be an association between the spatial resources of the first channel #1 and the spatial resources of control block #1 and / or data block #1. As one implementation, the spatial resources of the first channel #1 may be the same as the spatial resources of control block #1 and / or data block #1.

[0194] For example, for a given first channel, the index of the time slot containing the OFDM symbol of that first channel can be associated with the spatial resources of the control block and / or data block indicated by that first channel. For instance, first channel #1 can indicate resources for transmitting control block #1 and / or data block #1; therefore, there can be an association between the index of the time slot containing the OFDM symbol of first channel #1 and the spatial resources of control block #1 and / or data block #1. As one implementation, a certain offset can be added to the index of the time slot containing the OFDM symbol of first channel #1, thereby determining the spatial resources of control block #1 and / or data block #1 based on the sum.

[0195] In some embodiments, the resource element of the first channel is associated with the resource location mapped to the indicated control block and / or data block. For example, there is a certain offset between the location of the resource element of the first channel and the resource location mapped to the indicated control block and / or data block.

[0196] In some embodiments, the terminal device may determine the location of the resource unit of the indicated control block and / or data block by means of configuration information and a first channel.

[0197] For example, this configuration information can be used to configure time-domain offset and / or frequency-domain offset, wherein the time-domain offset is the offset between the time-domain position of the first channel and the time-domain position of the resource unit of the indicated control block and / or data block, and the frequency-domain offset is the offset between the frequency-domain position of the first channel and the frequency-domain position of the resource unit of the indicated control block and / or data block. Thus, the terminal device can determine the time-domain position of the resource unit of the indicated control block and / or data block based on the time-domain offset and the time-domain position of the first channel, and / or can determine the frequency-domain position of the resource unit of the indicated control block and / or data block based on the frequency-domain offset and the frequency-domain position of the first channel.

[0198] In some embodiments, the first channel has a different modulation scheme than the indicated control block and / or data block.

[0199] In some embodiments, the first channel may be based on sequence modulation, or in other words, the first channel may be transmitted in a sequence manner.

[0200] For example, the information carrying method of the first channel is to modulate the sequence of indication information (i.e., the information carried by the first channel) onto one or more OFDM symbols. As an example, the sequence may include complex (vector) sequences such as CAZAC sequences (constant amplitude zero autocorrelation sequences) and ZC (Zaddoff Chu) sequences, or PN sequences (pseudo-random sequences), Gold sequences, M sequences, Hadamard sequences, or other real sequences.

[0201] In some embodiments, the control block and / or data block may be based on channel-coded OFDM modulation. The control and data portions may be mapped and coded independently or jointly.

[0202] For example, the transmission of control block and / or data block channels (i.e., channels for transmitting control blocks and / or data blocks) can be based on OFDM modulation. That is, the original information is encoded into a bit sequence through channel encoding and decoding, and this bit sequence can be directly modulated onto modulation symbols. Finally, multiple modulation symbols can be mapped onto the corresponding OFDM symbols of control blocks and / or data blocks.

[0203] For example, the multiplexing of multiple control block and / or data block channels may include frequency domain multiplexing.

[0204] In some embodiments, the terminal device can determine the resource units and resource granularity of the first channel through a blind detection sequence, and then determine the resource granularity of the indicated control block and / or data block. For example, the terminal device can perform blind detection according to different sequence lengths. If the resource granularity of the detected sequence is a first granularity (such as the minimum granularity), then the resource of the control block and / or data block indicated by the sequence is also a first granularity (such as the minimum granularity).

[0205] Option 3

[0206] In some embodiments, a network device may transmit a plurality of first channels, and a terminal device may receive the plurality of first channels accordingly. Each first channel may respectively indicate resources for transmitting control blocks (such as downstream control blocks) and / or data blocks (such as downstream data blocks).

[0207] For example, "first channel" may also be called "detection indication channel", "sequence" or "first-level sequence"; "control block" may also be called "second-level control block"; "data block" may also be called "second-level data block".

[0208] In some embodiments, the plurality of first channels may be transmitted via a plurality of spatial resources. For example, the spatial resources may be beams.

[0209] In some embodiments, the plurality of first channels may be transmitted separately in OFDM symbols in multiple time slots, and the first channels transmitted by different symbols may use different spatial resources.

[0210] Figure 6 is a schematic diagram of the resources of multiple first channel indication control blocks and / or data blocks provided in an embodiment of this application. As shown in Figure 6, the network device can send four first channels to the terminal device. Different first channels can be located in different time slots, and each first channel can occupy one symbol (or other time-domain unit). For example, the first first channel can be sent using beam 1, the second first channel can be sent using beam 2, the third first channel can be sent using beam 3, and the fourth first channel can be sent using beam 4.

[0211] In some embodiments, multiple sets of control blocks may transmit the same information, and / or multiple sets of data blocks may transmit the same information.

[0212] In some embodiments, for a certain first channel, the time domain location of the first channel (such as the time slot where the OFDM symbol of the first channel is located) can be associated with the time domain location of an SSB (such as the time slot where the SSB is located), and then the spatial resources of the SSB can be used as the spatial resources for transmitting the first channel.

[0213] For example, in Figure 6, the time-domain position of the first first channel is associated with the time-domain position of SSB1, the time-domain position of the second first channel is associated with the time-domain position of SSB2, the time-domain position of the third first channel is associated with the time-domain position of SSB3, and the time-domain position of the fourth first channel is associated with the time-domain position of SSB4. Therefore, the spatial resources of SSB1 can be used as the spatial resources for transmitting the first first channel, the spatial resources of SSB2 can be used as the spatial resources for transmitting the second first channel, the spatial resources of SSB3 can be used as the spatial resources for transmitting the third first channel, and the spatial resources of SSB4 can be used as the spatial resources for transmitting the fourth first channel.

[0214] For example, the time-domain position of the first channel is associated with the time-domain position of the SSB, including the following cases: there is a certain offset (such as offset_t) between the time-domain position of the first channel and the time-domain position of the SSB. That is, if the offset between the time-domain position of a certain first channel and the time-domain position of a certain SSB is offset_t, then the time-domain position of the first channel can be considered to be associated with the time-domain position of the SSB, or the first channel can be considered to be associated with the SSB.

[0215] In some embodiments, the first channel may be located in the same time slot as the indicated control block and / or data block.

[0216] In some embodiments, the time slot containing the first channel is adjacent to the time slot containing the indicated control block and / or data block. For example, the first channel #1 is located in time slot #1, and the control block and / or data block indicated by the first channel #1 is located in time slot #2, wherein time slot #1 and time slot #2 are adjacent time slots.

[0217] In some embodiments, the first channel is associated with the spatial resources of the indicated control block and / or data block.

[0218] For example, for a certain first channel, the spatial resources of the first channel may be associated with the spatial resources of the control block and / or data block indicated by the first channel. For instance, the first channel #1 may indicate resources for transmitting control block #1 and / or data block #1, then there may be an association between the spatial resources of the first channel #1 and the spatial resources of control block #1 and / or data block #1. As one implementation, the spatial resources of the first channel #1 may be the same as the spatial resources of control block #1 and / or data block #1.

[0219] For example, for a certain first channel, the index of the time slot where the OFDM symbol of the first channel is located can be associated with the spatial resources of the control block and / or data block indicated by the first channel. For example, the first channel #1 can indicate resources for transmitting control block #1 and / or data block #1, then there can be an association between the index of the time slot where the OFDM symbol of the first channel #1 is located and the spatial resources of control block #1 and / or data block #1.

[0220] In some embodiments, the resource element of the first channel is associated with the resource location mapped to the indicated control block and / or data block. For example, there is a certain offset between the location of the resource element of the first channel and the resource location mapped to the indicated control block and / or data block.

[0221] In some embodiments, the terminal device may determine the location of the resource unit of the indicated control block and / or data block by means of configuration information and a first channel.

[0222] For example, this configuration information can be used to configure time-domain offset and / or frequency-domain offset, wherein the time-domain offset is the offset between the time-domain position of the first channel and the time-domain position of the resource unit of the indicated control block and / or data block, and the frequency-domain offset is the offset between the frequency-domain position of the first channel and the frequency-domain position of the resource unit of the indicated control block and / or data block. Thus, the terminal device can determine the time-domain position of the resource unit of the indicated control block and / or data block based on the time-domain offset and the time-domain position of the first channel, and / or can determine the frequency-domain position of the resource unit of the indicated control block and / or data block based on the frequency-domain offset and the frequency-domain position of the first channel.

[0223] In some embodiments, the first channel has a different modulation scheme than the indicated control block and / or data block.

[0224] In some embodiments, the first channel may be based on sequence modulation, or in other words, the first channel may be transmitted in a sequence manner.

[0225] For example, the information carrying method of the first channel is to modulate the sequence of indication information (i.e., the information carried by the first channel) onto one or more OFDM symbols. As an example, the sequence may include complex (vector) sequences such as CAZAC sequences (constant amplitude zero autocorrelation sequences) and ZC (Zaddoff Chu) sequences, or PN sequences (pseudo-random sequences), Gold sequences, M sequences, Hadamard sequences, or other real sequences.

[0226] In some embodiments, the control block and / or data block may be based on channel-coded OFDM modulation. The control and data portions may be mapped and coded independently or jointly.

[0227] For example, the transmission of control block and / or data block channels (i.e., channels for transmitting control blocks and / or data blocks) can be based on OFDM modulation. That is, the original information is encoded into a bit sequence through channel encoding and decoding, and this bit sequence can be directly modulated onto modulation symbols. Finally, multiple modulation symbols can be mapped onto the corresponding OFDM symbols of control blocks and / or data blocks.

[0228] For example, the multiplexing of multiple control block and / or data block channels may include frequency domain multiplexing.

[0229] In some embodiments, the terminal device can determine the resource units and resource granularity of the first channel through a blind detection sequence, and then determine the resource granularity of the indicated control block and / or data block. For example, the terminal device can perform blind detection according to different sequence lengths. If the resource granularity of the detected sequence is a first granularity (such as the minimum granularity), then the resource of the control block and / or data block indicated by the sequence is also a first granularity (such as the minimum granularity).

[0230] In some embodiments, the first channel in Scheme 1, Scheme 2 and Scheme 3 above may be a part of PDCCH, and the control block and / or data block may be another part of PDCCH (such as the load portion).

[0231] In the embodiments of this application, the first channel can be repeated in units of symbols or other time-domain units, and corresponds to multiple spatial resources (such as beams). In some scenarios, control blocks and / or data blocks can also be repeated in units of symbols or other time-domain units, and correspond to multiple spatial resources (such as beams).

[0232] In some embodiments, the first channel may be transmitted according to OFDM symbols or other time-domain units. Different symbols or other time-domain units may use different spatial resources to transmit the same information and are associated with the spatial resources of the SSB. That is, the same first channel may be transmitted in multiple symbols (or other time-domain units) and may use different spatial resources.

[0233] In some embodiments, the spatial resources of the sequence indication portion (i.e., the first channel), as well as the spatial resources of the indicated control block and / or data block, may be directly or indirectly associated with the spatial resources of the SSB.

[0234] In existing networks, the PDCCH does not support multi-beam transmission, nor can it improve coverage by flexibly aggregating multiple OFDM symbols to transmit control information. The method in this application overcomes the shortcomings of existing technologies that do not support PDCCH multi-beam scanning, thus enhancing PDCCH coverage performance. The control information transmission structure supported by this application is a sequence indicator + control block and / or data block. Furthermore, this application introduces a method for repeated transmission of the downlink control channel (PDCCH), which improves the coverage range of the PDCCH at the cell edge and fills the gaps in PDCCH coverage.

[0235] This application describes a method for determining the spatial resources of the sequence portion (i.e., the first channel portion) and the payload portion (i.e., the control block and / or data block portion) of the PDCCH through association rules while scheduling control blocks and / or data blocks via a control channel (such as a first channel). The method can be extended to other transmission resource indications (such as time-frequency resources).

[0236] It should be understood that the methods in the embodiments of this application are not limited to the coverage enhancement mode, but can also be used in the energy-saving transmission mode. For example, network devices can transmit in a low-power manner, and terminal devices can receive in a low-power manner.

[0237] The preferred embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this application, various simple modifications can be made to the technical solutions of this application, and these simple modifications all fall within the protection scope of this application. For example, the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, this application will not describe the various possible combinations separately. Furthermore, various different embodiments of this application can also be arbitrarily combined, as long as they do not violate the spirit of this application, they should also be considered as the content disclosed in this application. Moreover, without conflict, the various embodiments and / or the technical features in the various embodiments described in this application can be arbitrarily combined with the prior art, and the resulting technical solutions should also fall within the protection scope of this application.

[0238] It should also be understood that in the various method embodiments of this application, the sequence number of each process does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application. Furthermore, in the embodiments of this application, the terms "downlink," "uplink," and "sidelink" are used to indicate the transmission direction of signals or data. "Downlink" indicates that the transmission direction of signals or data is a first direction from the site to the user equipment in the cell; "uplink" indicates that the transmission direction of signals or data is a second direction from the user equipment in the cell to the site; and "sidelink" indicates that the transmission direction of signals or data is a third direction from user equipment 1 to user equipment 2. For example, "downlink signal" indicates that the transmission direction of the signal is the first direction. Additionally, in the embodiments of this application, the term "and / or" is merely a description of the association relationship between related objects, indicating that three relationships can exist. Specifically, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0239] Based on the foregoing embodiments, this application provides corresponding communication devices.

[0240] Figure 7 is a schematic diagram of the structure of a communication device provided in an embodiment of this application, applied to a terminal device. As shown in Figure 7, the communication device 700 includes:

[0241] The first communication unit 710 is configured to receive a plurality of first channels, wherein the plurality of first channels carry the same content; wherein the first channel is used to indicate a first resource, and the first resource is used to transmit downlink information.

[0242] In some embodiments, the time-domain location of the first channel is used to indicate the time-domain location of the first resource; and / or, the frequency-domain location of the first channel is used to indicate the frequency-domain location of the first resource.

[0243] In some embodiments, different first channels occupy different time units.

[0244] In some embodiments, the plurality of first channels are located within one or more time slots.

[0245] In some embodiments, the plurality of first channels are transmitted through a plurality of spatial resources.

[0246] In some embodiments, the plurality of spatial resources includes a first spatial resource, and the number of first channels transmitted through the first spatial resource is one or more.

[0247] In some embodiments, when there are multiple first channels transmitted through the first spatial resource, the multiple first channels transmitted through the first spatial resource are located within one or more time slots.

[0248] In some embodiments, the plurality of spatial resources includes a first spatial resource, a first channel transmitted through the first spatial resource is located within a first time unit, and the first time unit is associated with the first spatial resource.

[0249] In some embodiments, the first space resource is a space resource used for transmitting the first synchronization signal block (SSB).

[0250] In some embodiments, the plurality of spatial resources includes a first spatial resource for transmitting a first SSB, a first channel transmitted through the first spatial resource is located at a first time domain location, and the first time domain location is associated with the time domain location of the first SSB.

[0251] In some embodiments, a first time interval exists between the first time domain location and the first SSB time domain location, the first time interval being pre-configured, pre-defined, or configured by a network device.

[0252] In some embodiments, the plurality of spatial resources includes a first spatial resource, and a first resource indicated by a first channel transmitted through the first spatial resource is used to transmit first downlink information; the spatial resource used to transmit the first downlink information is associated with the first spatial resource.

[0253] In some embodiments, the plurality of first channels include a first channel transmitted within a first time unit, wherein a first resource indicated by the first channel transmitted within the first time unit is used to transmit first downlink information; and the spatial resources used to transmit the first downlink information are associated with the first time unit.

[0254] In some embodiments, for one of the plurality of first channels, the first channel and the first resource indicated by the first channel are located in the same or different time slots.

[0255] In some embodiments, one of the plurality of first channels is located in a first time slot, and the first resource indicated by the first channel is located in a second time slot, wherein the first time slot is adjacent to or not adjacent to the second time slot.

[0256] In some embodiments, the downlink information transmitted within a first resource indicated by the plurality of first channels includes multiple sets of downlink information, the multiple sets of downlink information having the same content.

[0257] In some embodiments, the locations of the first resources indicated by different first channels may be the same or different.

[0258] In some embodiments, the information carried by the first channel is a first portion of information in the Physical Downlink Control Channel (PDCCH); and / or, the downlink information includes a second portion of information in the PDCCH.

[0259] In some embodiments, the information carried by the first channel is based on sequence modulation; and / or, the downlink information is modulated based on channel coding.

[0260] In some embodiments, the space resource is a beam.

[0261] Figure 8 is a schematic diagram of the structure of a communication device provided in an embodiment of this application, applied to a network device. As shown in Figure 8, the communication device 800 includes:

[0262] The second communication unit 810 is configured to send multiple first channels, the multiple first channels carrying the same content; wherein, the first channel is used to indicate a first resource, and the first resource is used to transmit downlink information.

[0263] In some embodiments, the time-domain location of the first channel is used to indicate the time-domain location of the first resource; and / or, the frequency-domain location of the first channel is used to indicate the frequency-domain location of the first resource.

[0264] In some embodiments, different first channels occupy different time units.

[0265] In some embodiments, the plurality of first channels are located within one or more time slots.

[0266] In some embodiments, the plurality of first channels are transmitted through a plurality of spatial resources.

[0267] In some embodiments, the plurality of spatial resources includes a first spatial resource, and the number of first channels transmitted through the first spatial resource is one or more.

[0268] In some embodiments, when there are multiple first channels transmitted through the first spatial resource, the multiple first channels transmitted through the first spatial resource are located within one or more time slots.

[0269] In some embodiments, the plurality of spatial resources includes a first spatial resource, a first channel transmitted through the first spatial resource is located within a first time unit, and the first time unit is associated with the first spatial resource.

[0270] In some embodiments, the first space resource is a space resource used for transmitting the first synchronization signal block (SSB).

[0271] In some embodiments, the plurality of spatial resources includes a first spatial resource for transmitting a first SSB, a first channel transmitted through the first spatial resource is located at a first time domain location, and the first time domain location is associated with the time domain location of the first SSB.

[0272] In some embodiments, a first time interval exists between the first time domain location and the first SSB time domain location, the first time interval being pre-configured, pre-defined, or configured by a network device.

[0273] In some embodiments, the plurality of spatial resources includes a first spatial resource, and a first resource indicated by a first channel transmitted through the first spatial resource is used to transmit first downlink information; the spatial resource used to transmit the first downlink information is associated with the first spatial resource.

[0274] In some embodiments, the plurality of first channels include a first channel transmitted within a first time unit, wherein the first resource indicated by the first channel transmitted within the first time unit is used to transmit first downlink information; and the spatial resources used to transmit the first downlink information are associated with the first time unit.

[0275] In some embodiments, for one of the plurality of first channels, the first channel and the first resource indicated by the first channel are located in the same or different time slots.

[0276] In some embodiments, one of the plurality of first channels is located in a first time slot, and the first resource indicated by the first channel is located in a second time slot, wherein the first time slot is adjacent to or not adjacent to the second time slot.

[0277] In some embodiments, the downlink information transmitted within a first resource indicated by the plurality of first channels includes multiple sets of downlink information, the multiple sets of downlink information having the same content.

[0278] In some embodiments, the locations of the first resources indicated by different first channels may be the same or different.

[0279] In some embodiments, the information carried by the first channel is a first portion of information in the Physical Downlink Control Channel (PDCCH); and / or, the downlink information includes a second portion of information in the PDCCH.

[0280] In some embodiments, the information carried by the first channel is based on sequence modulation; and / or, the downlink information is modulated based on channel coding.

[0281] In some embodiments, the space resource is a beam.

[0282] Those skilled in the art should understand that the description of the communication device in the embodiments of this application can be understood with reference to the description of the communication method in the embodiments of this application.

[0283] Figure 9 is a schematic structural diagram of a communication device provided in an embodiment of this application. This communication device can be a terminal device or a network device. The communication device 900 shown in Figure 9 includes a processor 910, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0284] Optionally, as shown in FIG9, the communication device 900 may further include a memory 920. The processor 910 may retrieve and run computer programs from the memory 920 to implement the methods described in the embodiments of this application.

[0285] The memory 920 can be a separate device independent of the processor 910, or it can be integrated into the processor 910.

[0286] Optionally, as shown in FIG9, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices. Specifically, it may send information or data to other devices or receive information or data sent by other devices.

[0287] The transceiver 930 may include a transmitter and a receiver. The transceiver 930 may further include antennas, and the number of antennas may be one or more.

[0288] Optionally, the communication device 900 may specifically be a terminal device in the embodiments of this application, and the communication device 900 may implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0289] Optionally, the communication device 900 may specifically be a network device in the embodiments of this application, and the communication device 900 may implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0290] Figure 10 is a schematic structural diagram of a chip according to an embodiment of this application. The chip 1000 shown in Figure 10 includes a processor 1010, which can call and run computer programs from memory to implement the methods in the embodiments of this application.

[0291] Optionally, as shown in FIG10, chip 1000 may further include memory 1020. Processor 1010 can call and run computer programs from memory 1020 to implement the methods in the embodiments of this application.

[0292] The memory 1020 can be a separate device independent of the processor 1010, or it can be integrated into the processor 1010.

[0293] Optionally, the chip 1000 may also include an input interface 1030. The processor 1010 can control the input interface 1030 to communicate with other devices or chips, specifically, to acquire information or data sent by other devices or chips.

[0294] Optionally, the chip 1000 may also include an output interface 1040. The processor 1010 can control the output interface 1040 to communicate with other devices or chips, specifically, to output information or data to other devices or chips.

[0295] Optionally, the chip can be applied to the terminal device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0296] Optionally, the chip can be applied to the network device in the embodiments of this application, and the chip can implement the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0297] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0298] This application also provides a computer storage medium storing one or more programs, which can be executed by one or more processors to implement the methods in this application.

[0299] Figure 11 is a schematic block diagram of a communication system provided in an embodiment of this application. As shown in Figure 11, the communication system 1100 includes a terminal device 1110 and a network device 1120.

[0300] The terminal device 1110 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1120 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, they will not be described in detail here.

[0301] It should be understood that the processor in the embodiments of this application may be an integrated circuit chip with signal processing capabilities. In implementation, each step of the above method embodiments can be completed by integrated logic circuits in the processor's hardware or by instructions in software form. The processor described above can be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of this application can be directly embodied in the execution of a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules can be located in random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, or other mature storage media in the art. The storage medium is located in memory, and the processor reads information from the memory and, in conjunction with its hardware, completes the steps of the above method.

[0302] It is understood that the memory in the embodiments of this application can be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced Synchronous DRAM (ESDRAM), Synchlink DRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory used in the systems and methods described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0303] It should be understood that the above-described memory is exemplary and not a limiting description. For example, the memory in the embodiments of this application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DR RAM), etc. That is to say, the memory in the embodiments of this application is intended to include, but is not limited to, these and any other suitable types of memory.

[0304] This application also provides a computer-readable storage medium for storing computer programs.

[0305] Optionally, the computer-readable storage medium can be applied to the terminal device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0306] Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of this application, and the computer program causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0307] This application also provides a computer program product, including computer program instructions.

[0308] Optionally, the computer program product can be applied to the terminal device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0309] Optionally, the computer program product can be applied to the network device in the embodiments of this application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, they will not be described in detail here.

[0310] This application also provides a computer program.

[0311] Optionally, the computer program can be applied to the terminal device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the terminal device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0312] Optionally, the computer program can be applied to the network device in the embodiments of this application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of this application. For the sake of brevity, it will not be described in detail here.

[0313] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0314] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0315] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0316] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0317] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0318] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0319] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, the method comprising: The terminal device receives multiple first channels, all of which carry the same content; wherein, the first channel is used to indicate a first resource, and the first resource is used to transmit downlink information.

2. The method according to claim 1, wherein, The time-domain location of the first channel is used to indicate the time-domain location of the first resource; and / or, The frequency domain location of the first channel is used to indicate the frequency domain location of the first resource.

3. The method according to claim 1 or 2, wherein, Among the multiple first channels, different first channels occupy different time units.

4. The method according to any one of claims 1 to 3, wherein, The plurality of first channels are located in one or more time slots.

5. The method according to any one of claims 1 to 4, wherein, The multiple first channels are transmitted through multiple spatial resources.

6. The method according to any one of claims 5, wherein, The plurality of spatial resources includes a first spatial resource, and the number of first channels transmitted through the first spatial resource is one or more.

7. The method according to claim 6, wherein, When there are multiple first channels transmitted through the first space resource, the multiple first channels transmitted through the first space resource are located in one or more time slots.

8. The method according to any one of claims 5 to 7, wherein, The plurality of spatial resources include a first spatial resource, and a first channel transmitted through the first spatial resource is located within a first time unit, and the first time unit is associated with the first spatial resource.

9. The method according to claim 8, wherein, The first space resource is the space resource used to transmit the first synchronization signal block (SSB).

10. The method according to any one of claims 5 to 7, wherein, The plurality of spatial resources include a first spatial resource for transmitting a first SSB, and a first channel transmitted through the first spatial resource is located at a first time domain location, wherein the first time domain location is associated with the time domain location of the first SSB.

11. The method according to claim 10, wherein, There is a first time interval between the first time domain location and the first SSB time domain location, and the first time interval is pre-configured, pre-defined, or configured by the network device.

12. The method according to any one of claims 5 to 11, wherein, The plurality of spatial resources include a first spatial resource, and the first resource indicated by the first channel transmitted through the first spatial resource is used to transmit first downlink information; The spatial resources used to transmit the first downlink information are related to the first spatial resources.

13. The method according to any one of claims 1 to 12, wherein, The plurality of first channels include a first channel transmitted within a first time unit, wherein the first resource indicated by the first channel transmitted within the first time unit is used to transmit first downlink information; the spatial resources used to transmit the first downlink information are related to the first time unit.

14. The method according to any one of claims 1 to 13, wherein, For one of the plurality of first channels, the first channel and the first resource indicated by the first channel are located in the same or different time slots.

15. The method according to any one of claims 1 to 13, wherein, One of the plurality of first channels is located in a first time slot, and the first resource indicated by the first channel is located in a second time slot, wherein the first time slot and the second time slot are adjacent or not adjacent.

16. The method according to any one of claims 1 to 15, wherein, The downlink information transmitted within the first resource indicated by the plurality of first channels includes multiple sets of downlink information, and the content of the multiple sets of downlink information is the same.

17. The method according to any one of claims 1 to 16, wherein, Among the plurality of first channels, the locations of the first resources indicated by different first channels may be the same or different.

18. The method according to any one of claims 1 to 17, wherein, The information carried by the first channel is the first part of the information in the Physical Downlink Control Channel (PDCCH); and / or, The downlink information includes the second part of the information in the PDCCH.

19. The method according to any one of claims 1 to 18, wherein, The information carried by the first channel is based on sequence modulation; and / or, The downlink information is modulated based on channel coding.

20. The method according to any one of claims 1 to 19, wherein, The space resource is a beam.

21. A communication method, the method comprising: The network device sends multiple first channels, all of which carry the same content; wherein, the first channel is used to indicate a first resource, and the first resource is used to transmit downlink information.

22. The method according to claim 21, wherein, The time-domain location of the first channel is used to indicate the time-domain location of the first resource; and / or, The frequency domain location of the first channel is used to indicate the frequency domain location of the first resource.

23. The method according to claim 21 or 22, wherein, Among the multiple first channels, different first channels occupy different time units.

24. The method according to any one of claims 21 to 23, wherein, The plurality of first channels are located in one or more time slots.

25. The method according to any one of claims 21 to 24, wherein, The multiple first channels are transmitted through multiple spatial resources.

26. The method according to any one of claims 25, wherein, The plurality of spatial resources includes a first spatial resource, and the number of first channels transmitted through the first spatial resource is one or more.

27. The method according to claim 26, wherein, When there are multiple first channels transmitted through the first space resource, the multiple first channels transmitted through the first space resource are located in one or more time slots.

28. The method according to any one of claims 25 to 27, wherein, The plurality of spatial resources include a first spatial resource, and a first channel transmitted through the first spatial resource is located within a first time unit, and the first time unit is associated with the first spatial resource.

29. The method according to claim 28, wherein, The first space resource is the space resource used to transmit the first synchronization signal block (SSB).

30. The method according to any one of claims 25 to 27, wherein, The plurality of spatial resources include a first spatial resource for transmitting a first SSB, and a first channel transmitted through the first spatial resource is located at a first time domain location, wherein the first time domain location is associated with the time domain location of the first SSB.

31. The method according to claim 30, wherein, There is a first time interval between the first time domain location and the first SSB time domain location, and the first time interval is pre-configured, pre-defined, or configured by the network device.

32. The method according to any one of claims 25 to 31, wherein, The plurality of spatial resources include a first spatial resource, and the first resource indicated by the first channel transmitted through the first spatial resource is used to transmit first downlink information; The spatial resources used to transmit the first downlink information are related to the first spatial resources.

33. The method according to any one of claims 21 to 32, wherein, The plurality of first channels include a first channel transmitted within a first time unit, wherein the first resource indicated by the first channel transmitted within the first time unit is used to transmit first downlink information; the spatial resources used to transmit the first downlink information are related to the first time unit.

34. The method according to any one of claims 21 to 33, wherein, For one of the plurality of first channels, the first channel and the first resource indicated by the first channel are located in the same or different time slots.

35. The method according to any one of claims 21 to 33, wherein, One of the plurality of first channels is located in a first time slot, and the first resource indicated by the first channel is located in a second time slot, wherein the first time slot and the second time slot are adjacent or not adjacent.

36. The method according to any one of claims 21 to 35, wherein, The downlink information transmitted within the first resource indicated by the plurality of first channels includes multiple sets of downlink information, and the content of the multiple sets of downlink information is the same.

37. The method according to any one of claims 21 to 36, wherein, Among the plurality of first channels, the locations of the first resources indicated by different first channels may be the same or different.

38. The method according to any one of claims 21 to 37, wherein, The information carried by the first channel is the first part of the information in the Physical Downlink Control Channel (PDCCH); and / or, The downlink information includes the second part of the information in the PDCCH.

39. The method according to any one of claims 21 to 38, wherein, The information carried by the first channel is based on sequence modulation; and / or, The downlink information is modulated based on channel coding.

40. The method according to any one of claims 21 to 39, wherein, The space resource is a beam.

41. A communication device applied to a terminal equipment, the device comprising: A first communication unit is configured to receive multiple first channels, the multiple first channels carrying the same content; wherein, the first channel is used to indicate a first resource, and the first resource is used to transmit downlink information.

42. A communication device applied to a network equipment, the device comprising: The second communication unit is configured to send multiple first channels, the multiple first channels carrying the same content; wherein, the first channel is used to indicate a first resource, and the first resource is used to transmit downlink information.

43. A communication device, comprising: Memory is used to store executable instructions for a computer; A processor, connected to the memory, is configured to implement the method of any one of claims 1 to 20 by executing the computer-executable instructions; or to implement the method of any one of claims 21 to 40.

44. A chip, the chip comprising: A processor for retrieving and running a computer program from memory, causing a device having the chip mounted to perform the method as described in any one of claims 1 to 20, or to perform the method as described in any one of claims 21 to 40.

45. A computer-readable storage medium storing a computer program that, when executed by at least one processor, implements the method as claimed in any one of claims 1 to 20, or the method as claimed in any one of claims 21 to 40.

46. ​​A computer program product comprising a computer storage medium storing a computer program, the computer program comprising instructions executable by at least one processor, wherein the instructions, when executed by the at least one processor, implement the method of any one of claims 1 to 20, or the method of any one of claims 21 to 40.

47. A computer program that causes a computer to perform the method as claimed in any one of claims 1 to 20, or to perform the method as claimed in any one of claims 21 to 40.

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