Communication method and device

Abstract

The present application provides a communication method and apparatus that can be applied to a communication system, such as a long term evolution system or a new air interface system. The communication method includes: a terminal device obtains a first index, and determines, based on a first mapping relationship: a target uplink control resource and a target repetition factor corresponding to the first index. In the first mapping relationship, one index can correspond to one repetition factor and one uplink control resource. The terminal device sends an uplink signal on the target uplink control resource according to the target repetition factor. Through the embodiments of the present application, the repetition factor corresponding to the uplink signal takes into account both resource overhead and flexibility, which can improve communication efficiency.

Description

Technical Field

[0001] The present application relates to the field of communications, and in particular to a communication method and device. Background Art

[0002] To ensure communication quality, the physical uplink control channel (PUCCH) can be sent repeatedly, and the number of times the PUCCH is sent is the repetition factor.

[0003] Currently, the repetition factor can be determined based on three schemes: the PUCCH resource indicator (PRI) field in the downlink control information (DCI), the transmit power control (TPC) field, or a newly added field. Specifically, in the PRI-based scheme, the repetition factor can be implicitly indicated based on the association between the PUCCH resource and the repetition factor, that is, the PRI is reused to indicate the repetition factor. In the TPC-based scheme, the TPC field can be used to indicate the repetition factor in scenarios where the transmit power does not need to be adjusted, such as scenarios with limited coverage. Of course, the repetition factor can also be indicated based on a newly added field in the DCI.

[0004] However, in the PRI-based solution, since each PUCCH resource is only associated with one repetition factor, that is, the PRI indication information corresponds to the repetition factor one-to-one, the indicated repetition factor is fixed. If it cannot match the channel conditions, the flexibility is poor. The TPC-based solution can only be applied to scenarios with limited coverage and has limited applicability. In the solution based on the newly added DCI field, the newly added field will increase resource overhead, and when the number of bits in the newly added field is small, it can only indicate part of the repetition factor, and the flexibility is still poor. In summary, none of the above three solutions can take into account both resource overhead and flexibility. Summary of the Invention

[0005] The embodiments of the present application provide a communication method and apparatus that can improve communication efficiency.

[0006] To achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, a communication method is provided. The communication method includes: a terminal device obtaining a first index and determining, based on a first mapping relationship, a target uplink control resource and a target repetition factor corresponding to the first index. In the first mapping relationship, one index may correspond to one repetition factor and one uplink control resource. The target repetition factor is used to send an uplink signal on the target uplink control resource.

[0008] Based on the communication method provided in the first aspect, a target uplink control resource and a target repetition factor can be determined based on an index and a first mapping relationship. One index corresponds to one uplink control resource and one repetition factor, i.e., combinations of uplink control resources and different repetition factors correspond to different indexes. In this way, the same uplink control resource can correspond to multiple repetition factors, and the target repetition factor is determined from the repetition factors corresponding to the uplink control resource based on the index, making the indication of the repetition factor more flexible. For example, the repetition factor can be indicated based on the channel environment, thereby improving communication efficiency.

[0009] In addition, the index can be determined by existing fields to achieve implicit indication of the repetition factor without adding new fields, thereby avoiding additional resource overhead and further improving communication efficiency.

[0010] In addition, the index can be used to indicate the repetition factor under different conditions, such as coverage-constrained conditions or non-coverage-constrained conditions, which can increase the flexibility of the repetition factor indication, thereby further improving communication efficiency. In summary, the communication method described in the first aspect can balance resource overhead and flexibility, thereby improving communication efficiency.

[0011] It should be noted that, in some possible design schemes, in the first mapping relationship in the embodiment of the present application, an index may also correspond to an index of a repetition factor and an index of an uplink control resource.

[0012] In one possible design, the terminal device obtaining the first index may include: the terminal device obtaining configuration information and determining the first index based on the configuration information. The configuration information may include: the number of uplink control resources, the number of repetition factors corresponding to the first mapping relationship, first uplink resource index indication information, the total number of control channel elements (CCEs) in the downlink control resource set (CORESET), and the first resource index.

[0013] Optionally, the first uplink resource index indication information may be uplink control resource indication information.

[0014] Optionally, the first resource index may be the index of the first CCE occupied by the physical downlink control channel.

[0015] In one possible design scheme, the first index is related to the ratio of the first resource index to the total number of CCEs in the downlink control resource set, and the first uplink resource index indication information.

[0016] In a possible design solution, the first index may satisfy the following relationship: Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, nCCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI In this way, different indexes can be determined by different combinations of the PRI and the first resource index, thereby enabling flexible indication of different repetition factors and uplink control resources, further improving communication efficiency.

[0017] In a possible design solution, the first index may satisfy one of the following relationships: or, Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0018] In a possible design solution, the first index may satisfy the following relationship: Among them, r re，rep is the first joint index, N CCE，p is the number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R repetition is the number of repetition factors, Δ PRI is the value of the first uplink resource index indication information.

[0019] In a possible design solution, the first index may satisfy the following relationship: Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0020] In a possible design solution, the first index may satisfy the following relationship: Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R repetition is the number of repeated factors, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0021] In a possible design solution, the first index may satisfy the following relationship: Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0022] In a possible design solution, the first index may satisfy the following relationship: Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R repetition is the number of repeated factors, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0023] In a possible design scheme, the method described in the first aspect may further include: the terminal device obtains first indication information, and determines a first mapping relationship based on the first repetition factor set and the uplink control resource set. The first indication information is used to indicate the first repetition factor set, and the first repetition factor set is one of multiple repetition factor sets. In this way, a repetition factor set can be selected from multiple repetition factor sets, and the first mapping relationship can be determined based on the selected repetition factor set. For example, the repetition factor set can be selected according to the scenario, which can make the indication of the repetition factor more flexible, thereby further improving communication efficiency.

[0024] Furthermore, the method described in the first aspect may further include: the terminal device receiving second indication information; wherein the second indication information is used to indicate multiple repetition factor sets. In this way, different repetition factor sets can be dynamically configured. For example, the repetition factor sets can be configured based on the scenario, thereby making the repetition factor indication more flexible and further improving communication efficiency.

[0025] Optionally, the second indication information can be carried in one or more of the following: downlink control information, or media access control-control information element; wherein the downlink control information includes one or more of the following: modulation and coding scheme indication information, carrier indication information, antenna port indication information, or priority indication information.

[0026] Alternatively, optionally, the second indication information may be RNTI, and RNTI is used to scramble downlink control information.

[0027] In one possible design scheme, the terminal device determines, based on a first mapping relationship, a target uplink control resource and a target repetition factor corresponding to a first index, which may include: the terminal device determining, based on a first joint index, an index of the target uplink control resource and an index of the target repetition factor. The terminal device determines the target uplink control resource and the target repetition factor based on the index of the target uplink control resource and the index of the target repetition factor.

[0028] It can be understood that in an embodiment of the present application, the terminal device can also directly determine the target uplink control resource and the target repetition factor through the first index.

[0029] Optionally, the index of the target uplink control resource and the index of the target repetition factor may satisfy the following conditions: rep_index=r re，rep mod R repetition Where re_index is the index of the target uplink control resource, rep_index is the index of the target repetition factor, R repetition is the number of repetition factors, r re，repThe index corresponding to the combination of target uplink control resource and target repetition factor.

[0030] Alternatively, the index of the target uplink control resource and the index of the target repetition factor may satisfy the following conditions: re_index = r re，rep mod R PUCCH ; Among them, re_index is the index of the target uplink control resource, rep_index is the index of the target repetition factor, R PUCCH is the number of uplink control resources, r re，rep The index corresponding to the combination of target uplink control resource and target repetition factor.

[0031] In a second aspect, a communication method is provided, comprising: a network device determining a target uplink control resource and a target repetition factor. The target repetition factor is used to receive an uplink signal on the target uplink control resource. The network device transmits first information. The first information comprises: the number of uplink control resources, the repetition factor, a first uplink resource index indication, a total number of control channel elements (CCEs) in a downlink control resource set (CORESET), and a first resource index.

[0032] In a possible design scheme, the first uplink resource index indication information may be uplink control resource indication information.

[0033] In a possible design scheme, the first resource index may be the index of the first CCE occupied by the physical downlink control channel.

[0034] In one possible design, the target repetition factor is determined based on a first repetition factor set. The method described in the second aspect may further include: sending first indication information. The first indication information is used to indicate a first repetition factor set, which is one of multiple repetition factor sets.

[0035] Optionally, the method described in the second aspect may further include: sending second indication information, wherein the second indication information is used to indicate multiple repetition factor sets.

[0036] In addition, the technical effects of the communication method described in the second aspect can refer to the technical effects of the communication method described in the first aspect, and will not be repeated here.

[0037] According to a third aspect, a communication method is provided, comprising: a terminal device obtaining third indication information. The third indication information is used to indicate target association information, where the target association information is one of multiple candidate association information, each candidate association information including: a mapping relationship between each uplink control resource and a repetition factor in an uplink control resource set. The terminal device determines a target repetition factor for a target uplink control resource based on the target association information. The target uplink control resource is the uplink control resource indicated by the fourth indication information, and the target repetition factor is used to send an uplink signal on the target uplink control resource.

[0038] Based on the communication method described in the third aspect, a piece of association information can be selected from multiple pieces of association information, and then, from the selected association information, a target repetition factor can be determined using the target uplink control resource. Thus, by selecting the association information using the third indication information, the target repetition factor can be selected from the repetition factors corresponding to the target uplink control resource, thereby increasing the flexibility of the repetition factor indication and thereby improving communication efficiency.

[0039] In addition, the associated information is indicated by the third indication information, and the repetition factor can be implicitly indicated through the uplink control resource indication information. The implicit indication of the repetition factor can be achieved through the existing field without the need for adding a new field to avoid additional resource overhead, thereby further improving communication efficiency.

[0040] By selecting associated information through the third indication information, different associated information can also be selected according to channel conditions, such as selecting associated information with a large repetition factor when coverage is limited, and selecting associated information with a small repetition factor when coverage is not limited, thereby increasing flexibility and further improving communication efficiency.

[0041] In summary, the communication method described in the third aspect can take into account both resource overhead and flexibility, thereby improving communication efficiency.

[0042] In one possible design, the third indication information may be carried in one or more of the following: downlink control information or a media access control (MAC) control information element (CI). The downlink control information may include one or more of the following: modulation and coding scheme indication information, carrier indication information, antenna port indication information, or priority indication information. This allows the use of existing fields in the downlink control information to indicate associated information, thereby avoiding additional resource overhead and further improving communication efficiency. Furthermore, using the MAC control information element and the modulation and coding scheme indication information in the downlink control information to indicate associated information allows the repetition factor to be indicated in non-coverage-restricted scenarios, thereby improving flexibility.

[0043] In one possible design, the terminal device obtaining the third indication information may include: the terminal device receiving downlink control information. The downlink control information is scrambled using a first RNTI. The terminal device obtaining target association information corresponding to the first RNTI; wherein the multiple candidate association information correspond to different RNTIs used to scramble the downlink control information. In this way, the RNTI can be obtained based on the downlink control information, thereby avoiding additional resource overhead and further improving communication efficiency.

[0044] In one possible design, the candidate association information may be associated with the format of an uplink control resource set or an uplink channel. In this way, the association information can be determined based on different uplink control resource sets or uplink channel formats. For example, configuring a repetition factor set associated with the format of an uplink control resource set or an uplink channel can better adapt to different scenarios and increase the flexibility of the transmission repetition factor.

[0045] In a fourth aspect, a communication method is provided for use with a network device. The communication method includes determining a target uplink control resource and a target repetition factor. The target repetition factor is used to receive an uplink signal on the target uplink control resource. The network device transmits association information indication information indicating a target association relationship.

[0046] In one possible design, the associated information indication information may be carried in downlink control information or a media access control-control information element.

[0047] In a possible design scheme, the associated information indication information may be downlink control information scrambled by the first RNTI; and multiple candidate associated information respectively correspond to different RNTIs used to scramble the downlink control information.

[0048] The technical effects of the communication method described in the fourth aspect can refer to the technical effects of the communication method described in the third aspect, and will not be repeated here.

[0049] In a fifth aspect, a communication method is provided, comprising: a terminal device receiving fifth indication information. The fifth indication information is carried in one or more of the following: downlink control information or a media access control (MAC) control information element. The fifth indication information corresponds to a repetition factor. The terminal device determines a target repetition factor based on the fifth indication information. The target repetition factor is used to transmit an uplink signal on a target uplink control resource.

[0050] Based on the communication method described in the fifth aspect, the target repetition factor can be indicated based on downlink control information or media access control-control information elements, where one repetition factor can correspond to different repetition factors. In this way, different repetition factors can be indicated based on downlink control information or media access control-control information elements, thereby flexibly implementing the indication of the repetition factor and improving communication efficiency. In addition, using existing fields to indicate the repetition factor can avoid additional resource overhead, thereby improving communication efficiency. In addition, indicating the target repetition factor based on downlink control information or media access control-control information elements can achieve implicit indication of the repetition factor. For example, the repetition factor can be determined based on the MCS index, thereby enabling the indication of the repetition factor under different coverage conditions, thereby improving the flexibility of the repetition factor indication and further improving communication efficiency.

[0051] In summary, the communication method described in the fifth aspect can improve flexibility and thus improve communication efficiency.

[0052] In one possible design, the fifth indication information may include one or more of the following: modulation and coding scheme (MCS) indication information, carrier indication information, antenna port indication information, or priority indication information. In this way, existing fields in the downlink control information can be utilized to flexibly indicate the repetition factor without requiring additional resource overhead, thereby improving efficiency.

[0053] Optionally, the modulation and coding scheme indication information is used to indicate an MCS index, and the repetition factor may be related to the MCS index and / or the modulation order corresponding to the MCS index. In this way, the repetition factor can be implicitly indicated based on the MCS index indicated by the modulation and coding scheme indication information, and the repetition factor can be indicated under different coverage conditions, such as coverage-limited or non-coverage-limited conditions, thereby flexibly indicating the repetition factor and further improving communication efficiency.

[0054] Furthermore, the MCS index may include at least two intervals, each of the at least two intervals corresponding to a repetition factor. Alternatively, the modulation order corresponding to the MCS index may include at least two intervals, each of the at least two intervals corresponding to a repetition factor.

[0055] Alternatively, the repetition factor may correspond to the number of modulation and demodulation reference signal ports. Further, the number of modulation and demodulation reference signal ports may include at least two intervals, and each of the at least two intervals corresponds to a repetition factor.

[0056] In a possible design scheme, the method described in the fifth aspect may further include: the terminal device determines the target repetition factor in the target repetition factor set according to the fifth indication information.

[0057] In one possible design, the method described in aspect 5 may further include: the terminal device receiving sixth indication information, wherein the sixth indication information is used to indicate a target repetition factor set, which is one of multiple candidate repetition factor sets.

[0058] Optionally, the method described in the fifth aspect may further include: the terminal device receiving seventh indication information, wherein the seventh indication information is used to indicate multiple candidate repetition factor sets.

[0059] Optionally, the candidate repetition factor set is related to the format of the uplink control resource set or the uplink channel.

[0060] According to a sixth aspect, a communication method is provided for use in a network device. The communication method includes determining a target uplink control resource and a target repetition factor. The target repetition factor is used to receive an uplink signal on the target uplink control resource. Fifth indication information is transmitted. The fifth indication information is carried in one or more of the following: downlink control information or a media access control control information element; the fifth indication information corresponds to the repetition factor.

[0061] In one possible design scheme, the fifth indication information may include one or more of the following: modulation and coding scheme MCS indication information, carrier indication information, antenna port indication information, or priority indication information.

[0062] In one possible design, the communication method described in the sixth aspect may further include: sending sixth indication information, wherein the sixth indication information is used to indicate: a target repetition factor set in which the target repetition factor is located; the target repetition factor set being one of multiple candidate repetition factor sets.

[0063] Furthermore, the communication method described in the sixth aspect may further include: sending sixth indication information, wherein the sixth indication information is used to indicate multiple candidate repetition factor sets.

[0064] In addition, the technical effects of the communication method described in the sixth aspect can refer to the technical effects of the communication method described in the fifth aspect, and will not be repeated here.

[0065] In a seventh aspect, a communication method is provided, comprising: a terminal device receiving downlink control information, wherein the downlink control information is scrambled using a second RNTI; obtaining a target repetition factor corresponding to the second RNTI; wherein the RNTIs used for scrambling the downlink control information correspond to different repetition factors, respectively; and the target repetition factor is used to send an uplink signal on a target uplink control resource.

[0066] The communication method based on the seventh aspect can indicate the repetition factor using different RNTIs, eliminating the need for new fields and avoiding additional resource overhead. Assigning different RNTIs to different repetition factors allows for flexible indication of the repetition factor, thereby improving communication efficiency. Furthermore, the repetition factor can be indicated under different coverage conditions, making the indication of the repetition factor more flexible. In summary, the communication method of the seventh aspect balances resource overhead and flexibility.

[0067] In a possible design scheme, the communication method described in the seventh aspect may further include: the terminal device determines the target repetition factor in the target repetition factor set according to the eighth indication information.

[0068] In one possible design, the communication method described in the seventh aspect may further include: the terminal device receiving ninth indication information. The ninth indication information is used to indicate a target repetition factor set. The target repetition factor set is one of a plurality of candidate repetition factor sets.

[0069] Optionally, the communication method described in the seventh aspect may further include: the terminal device receiving tenth indication information, wherein the tenth indication information is used to indicate a plurality of candidate repetition factor sets.

[0070] Optionally, the candidate repetition factor set is related to the format of the uplink control resource set or the uplink channel.

[0071] In addition, the technical effects of the communication method described in the seventh aspect can refer to the technical effects of the communication method described in the third aspect, and will not be repeated here.

[0072] In an eighth aspect, a communication method is provided, comprising: a network device determining a target uplink control resource and a target repetition factor. The target repetition factor is used to receive an uplink signal on the target uplink control resource. First downlink control information is sent. The first downlink control information is scrambled using a second RNTI; different RNTIs used to scramble the downlink control information correspond to different repetition factors.

[0073] In addition, the technical effects of the communication method described in the eighth aspect can refer to the technical effects of the communication method described in the seventh aspect, and will not be repeated here.

[0074] In a ninth aspect, a communication device is provided, comprising: an acquisition module and a determination module. The acquisition module is configured to acquire a first index. The determination module is configured to determine, based on a first mapping relationship, a target uplink control resource and a target repetition factor corresponding to the first index. In the first mapping relationship, one index corresponds to one repetition factor and one uplink control resource; the target repetition factor is used to transmit an uplink signal on the target uplink control resource.

[0075] In one possible design, the acquisition module may be configured to acquire configuration information. The configuration information may include: the number of uplink control resources, the repetition factor corresponding to the first mapping relationship, first uplink resource index indication information, the total number of control channel elements (CCEs) in the downlink control resource set (CORESET), and the first resource index. The determination module may also be configured to determine the first index based on the configuration information.

[0076] Optionally, the first uplink resource index indication information may be uplink control resource indication information.

[0077] Optionally, the first resource index may be the index of the first CCE occupied by the physical downlink control channel.

[0078] In one possible design scheme, the first index is related to the ratio of the first resource index to the total number of CCEs in the downlink control resource set, and the first uplink resource index indication information.

[0079] In a possible design solution, the first index may satisfy the following relationship: Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0080] In one design solution, the first index may satisfy one of the following relationships: or, Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0081] In one possible design, the acquisition module may also be configured to acquire first indication information, wherein the first indication information is configured to indicate a first repetition factor set, which is one of a plurality of repetition factor sets, and determine a first mapping relationship based on the first repetition factor set and the uplink control resource set.

[0082] Furthermore, the acquisition module can also be used to receive second indication information, where the second indication information is used to indicate multiple repetition factor sets.

[0083] Optionally, the acquisition module may include a receiving module and a sending module. The sending module is used to implement the sending function and the receiving function of the communication device described in the ninth aspect. The sending module and the receiving module may also be integrated into one module, such as a sending module.

[0084] Optionally, the communication device described in the ninth aspect may further include a storage module, wherein the storage module stores a program or instruction. When the processing module executes the program or instruction, the communication device may execute the communication method described in the first aspect.

[0085] It should be noted that the communication device described in the ninth aspect can be a terminal device or a network device, or a chip (system) or other parts or components that can be set in a terminal device or a network device, or a device that includes a terminal device or a network device. This application does not limit this.

[0086] In addition, the technical effects of the communication method described in the ninth aspect can refer to the technical effects of the communication method described in the first aspect, and will not be repeated here.

[0087] In a tenth aspect, a communication device is provided, comprising: a processing module and a transceiver module. The processing module is configured to determine a target uplink control resource and a target repetition factor. The target repetition factor is used to receive an uplink signal on the target uplink control resource. The transceiver module is configured to send first information. The first information includes: the number of uplink control resources, the repetition factor, first uplink resource index indication information, the total number of control channel elements (CCEs) in a downlink control resource set (CORESET), and a first resource index.

[0088] In a possible design scheme, the first uplink resource index indication information may be uplink control resource indication information.

[0089] In a possible design scheme, the first resource index may be the index of the first CCE occupied by the physical downlink control channel.

[0090] In one possible design, the target repetition factor is determined based on a first repetition factor set. The transceiver module is further configured to send first indication information, wherein the first indication information is configured to indicate a first repetition factor set, which is one of a plurality of repetition factor sets.

[0091] Optionally, the transceiver module may also be configured to send second indication information, wherein the second indication information is configured to indicate multiple repetition factor sets.

[0092] Optionally, the transceiver module may include a receiving module and a sending module, wherein the transceiver module is used to implement the sending function and the receiving function of the communication device described in the fifth aspect.

[0093] Optionally, the communication device described in the tenth aspect may further include a storage module, wherein the storage module stores a program or instruction. When the processing module executes the program or instruction, the communication device may execute the communication method described in the third aspect.

[0094] It should be noted that the communication device described in the tenth aspect can be a terminal device or a network device, or a chip (system) or other parts or components that can be set in a terminal device or a network device, or a device that includes a terminal device or a network device. This application does not limit this.

[0095] In addition, the technical effects of the communication method described in the tenth aspect can refer to the technical effects of the communication method described in the first aspect, and will not be repeated here.

[0096] In an eleventh aspect, a communication device is provided, wherein the communication device is configured to execute the communication method described in any one of the implementations of the first to eighth aspects.

[0097] In the present application, the communication device described in the eleventh aspect can be the terminal device described in any one of the first, third, fifth or seventh aspects, or the network device described in any one of the second, fourth, sixth or eighth aspects, or can be set in a chip (system) or other parts or components of the terminal device or network device, or a device including the terminal device or network device.

[0098] It should be understood that the communication device described in the eleventh aspect includes a module, unit, or means corresponding to the communication method described in any one of the first to eighth aspects above. The module, unit, or means can be implemented by hardware, software, or by hardware executing the corresponding software implementation. The hardware or software includes one or more modules or units for performing the functions involved in the above-mentioned communication method.

[0099] In addition, the technical effects of the communication device described in the eleventh aspect can refer to the technical effects of the communication method described in any one of the first to eighth aspects, and will not be repeated here.

[0100] In a twelfth aspect, a communication device is provided, comprising: a processor configured to execute the communication method described in any possible implementation of the first to eighth aspects.

[0101] In one possible design solution, the communication device described in aspect 12 may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in aspect 12 to communicate with other communication devices.

[0102] In one possible design, the communication device described in aspect 12 may further include a memory. The memory may be integrated with the processor or provided separately. The memory may be used to store computer programs and / or data involved in the communication method described in any one of aspects 1 to 8.

[0103] In the present application, the communication device described in aspect 12 can be the terminal device in aspect 1, aspect 3, aspect 5, or aspect 7, or the network device in aspect 2, aspect 4, aspect 6, or aspect 8, or can be set in a chip (system) or other parts or components of the terminal device or network device, or a device including the terminal device or network device.

[0104] In addition, the technical effects of the communication device described in the twelfth aspect can refer to the technical effects of the communication method described in any one of the implementation methods in the first to eighth aspects, and will not be repeated here.

[0105] In a thirteenth aspect, a communication device is provided. The communication device includes: a processor coupled to a memory, the processor being configured to execute a computer program stored in the memory, so that the communication device performs the communication method described in any possible implementation of the first to eighth aspects.

[0106] In one possible design solution, the communication device described in aspect 13 may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in aspect 13 to communicate with other communication devices.

[0107] In the present application, the communication device described in the thirteenth aspect can be the terminal device in the first aspect, the third aspect, the fifth aspect, or the seventh aspect, or the network device in the second aspect, the fourth aspect, the sixth aspect, or the eighth aspect, or can be set in a chip (system) or other parts or components of the terminal device or network device, or a device including the terminal device or network device.

[0108] In addition, the technical effects of the communication device described in the thirteenth aspect can refer to the technical effects of the communication method described in any one of the implementation methods in the first to eighth aspects, and will not be repeated here.

[0109] In the fourteenth aspect, a communication device is provided, comprising: a processor and a memory; the memory is used to store a computer program, and when the processor executes the computer program, the communication device executes the communication method described in any one of the implementation methods of the first to eighth aspects.

[0110] In one possible design solution, the communication device described in aspect 148 may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in aspect 14 to communicate with other communication devices.

[0111] In the present application, the communication device described in the fourteenth aspect can be the terminal device in the first aspect, the third aspect, the fifth aspect, or the seventh aspect, or the network device in the second aspect, the fourth aspect, the sixth aspect, or the eighth aspect, or can be set in a chip (system) or other parts or components of the terminal device or network device, or a device including the terminal device or network device.

[0112] In addition, the technical effects of the communication device described in the fourteenth aspect can refer to the technical effects of the communication method described in any one of the implementation methods in the first to eighth aspects, and will not be repeated here.

[0113] In the fifteenth aspect, a communication device is provided, comprising: a processor; the processor is used to couple with a memory, and after reading a computer program in the memory, execute the communication method as described in any one of the implementation methods of the first to eighth aspects according to the computer program.

[0114] In one possible design solution, the communication device described in aspect 15 may further include a transceiver. The transceiver may be a transceiver circuit or an interface circuit. The transceiver may be used for the communication device described in aspect 15 to communicate with other communication devices.

[0115] In the present application, the communication device described in aspect 15 can be the terminal device in aspect 1, aspect 3, aspect 5, or aspect 7, or the network device in aspect 2, aspect 4, aspect 6, or aspect 8, or can be set in a chip (system) or other parts or components of the terminal device or network device, or a device including the terminal device or network device.

[0116] In addition, the technical effects of the communication device described in the fifteenth aspect can refer to the technical effects of the communication method described in any one of the implementation methods in the first to eighth aspects, and will not be repeated here.

[0117] In a sixteenth aspect, a processor is provided, wherein the processor is configured to execute the communication method described in any possible implementation manner of the first to eighth aspects.

[0118] In a seventeenth aspect, a communication system is provided, which includes one or more terminal devices and one or more network devices.

[0119] In the eighteenth aspect, a computer-readable storage medium is provided, comprising: a computer program or instructions; when the computer program or instructions are run on a computer, the computer executes the communication method described in any possible implementation method of the first to eighth aspects.

[0120] In the nineteenth aspect, a computer program product is provided, comprising a computer program or instructions, which, when executed on a computer, enables the computer to execute the communication method described in any one of the possible implementations of the first to eighth aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0121] Figure 1 A schematic diagram of the architecture of a communication system provided in an embodiment of the present application;

[0122] Figure 2 Schematic diagram of the communication method provided in this embodiment Figure 1 ;

[0123] Figure 3 Schematic diagram of the communication method provided in this embodiment Figure 2 ;

[0124] Figure 4 Provides a flow diagram of a communication method for an embodiment of the present application Figure 3 ;

[0125] Figure 5 Schematic diagram of the communication method provided in this embodiment Figure 4 ;

[0126] Figure 6Schematic diagram of the structure of the communication device provided in the embodiment of the present application Figure 1 ;

[0127] Figure 7 Schematic diagram of the structure of the communication device provided in the embodiment of the present application Figure 2 ;

[0128] Figure 8 Schematic diagram of the structure of the communication device provided in the embodiment of the present application Figure 3 . DETAILED DESCRIPTION

[0129] The following first introduces the technical terms of the embodiments of the present application:

[0130] 1. PUCCH resource indicator (PRI): included in downlink control information (DCI) format 1_0, DCI format 1_1, and DCI format 1_2 used to schedule the physical downlink shared channel (PDSCH). This field is 3 bits in DCI format 1_0 and format 1_1, and 0, 1, 2, or 3 bits in DCI format 1_2. The number of bits is indicated by the field "numberOfBitsForPUCCH-ResourceIndicatorDCI-1-2" in the higher-layer parameters. It is used to indicate the resources used by the PUCCH for the automatic repeat request (HARQ) acknowledgment (ACK) feedback corresponding to the PDSCH scheduled by the DCI.

[0131] 2. Modulation and Coding Scheme (MCS): The modulation and coding strategy of a terminal device. Rate configuration in New Radio (NR) is achieved through the Modulation and Coding Index (MCS index). A larger MCS index corresponds to a higher modulation order and rate. The MCS index and channel quality are related as follows: better channel conditions correspond to larger MCS indexes, while worse channel conditions correspond to smaller MCS indexes. Channel quality is related to the Channel Quality Indicator (CQI). The channel environment can be determined based on the Signal-to-Interference-plus-Noise Ratio (SINR). A higher SINR indicates a better channel environment, which can improve channel capacity and system throughput; a lower SINR indicates a worse channel environment. For example, a higher SINR corresponds to a larger MCS index than a lower SINR. In communications, rate-influencing factors in the modulation and coding scheme and the MCS index are combined as rows to form a rate table.

[0132] The technical solution in this application will be described below with reference to the accompanying drawings.

[0133] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as wireless fidelity (WiFi) systems, vehicle-to-everything (V2X) communication systems, device-to-device (D2D) communication systems, Internet of Vehicles communication systems, 4th generation (4G) mobile communication systems, such as long term evolution (LTE) systems, world-wide interoperability for microwave access (WiMAX) communication systems, 5th generation (5G) mobile communication systems, such as new radio (NR) systems, and future communication systems, such as 6th generation (6G) mobile communication systems.

[0134] This application will present various aspects, embodiments, or features in the context of systems that may include multiple devices, components, modules, etc. It should be understood and appreciated that each system may include additional devices, components, modules, etc., and / or may not include all of the devices, components, modules, etc. discussed in conjunction with the figures. Furthermore, combinations of these aspects may also be used.

[0135] Additionally, in the embodiments of this application, words such as "exemplarily" and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as an "exemplary" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of the word "exemplary" is intended to present concepts in a concrete manner.

[0136] In the embodiments of the present application, the terms "information," "signal," "message," "channel," and "signaling" may sometimes be used interchangeably. It should be noted that, when the distinction between them is not emphasized, the meanings they intend to convey are the same. The terms "of," "corresponding," and "corresponding" may sometimes be used interchangeably. It should be noted that, when the distinction between them is not emphasized, the meanings they intend to convey are the same.

[0137] The network architecture and business scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. Ordinary technicians in this field will know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.

[0138] To facilitate understanding of the embodiments of the present application, first Figure 1 The communication system shown in FIG is used as an example to describe in detail the communication system applicable to the embodiment of the present application. Figure 1 A schematic diagram of the architecture of a communication system applicable to the communication method provided in an embodiment of the present application.

[0139] like Figure 1 As shown, the communication system includes network equipment and terminal equipment.

[0140] The network device is located on the network side of the communication system and has wireless transceiver functions or is a chip or chip system that can be installed in the device. The network device includes, but is not limited to, an access point (AP) in a wireless fidelity (WiFi) system, such as a home gateway, a router, a server, a switch, a bridge, etc., an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station (e.g., home evolved NodeB, or homeNode B, HNB), a baseband unit (BBU), a wireless relay node, a wireless backhaul node, a transmission and reception point (TRP or transmission point, TP), etc. It can also be 5G, such as a gNB in a new radio (NR) system, or a transmission point (TRP or TP), one or a group of antenna panels (including multiple antenna panels) of a base station in a 5G system, or a network node constituting a gNB or a transmission point, such as a baseband unit (BBU) or a distributed unit (DBU). unit (DU), road side unit (RSU) with base station function, etc.

[0141] The above-mentioned terminal device is a terminal that accesses the above-mentioned communication system and has a wireless transceiver function or a chip or chip system that can be set at the terminal. The terminal device can also be called a user device, an access terminal, a user unit, a user station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent or a user device. The terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a computer with a wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control (industrial control), a wireless terminal in self-driving (selfdriving), a wireless terminal in telemedicine (remote medical), a wireless terminal in smart grid (smartgrid), a wireless terminal in transportation safety (transportation safety), a wireless terminal in smart city (smartcity), a wireless terminal in smart home (smart home), a vehicle-mounted terminal, an RSU with terminal function, etc. The terminal device of the present application can also be a vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit built into the vehicle as one or more components or units. The vehicle can implement the communication method provided by the present application through the built-in vehicle-mounted module, vehicle-mounted module, vehicle-mounted component, vehicle-mounted chip or vehicle-mounted unit.

[0142] It should be noted that the communication method provided in the embodiment of the present application can be applied to Figure 1 The communication between the terminal device and the network device shown in the figure can be specifically implemented by referring to the following method embodiment, which will not be repeated here.

[0143] It should be noted that the solutions in the embodiments of the present application can also be applied to other communication systems, and the corresponding names can also be replaced by the names of corresponding functions in other communication systems.

[0144] It should be understood that Figure 1 This is a simplified schematic diagram for ease of understanding only. The communication system may also include other network devices and / or other terminal devices. Figure 1 Not drawn in.

[0145] The following will be combined Figure 2-Figure 8 The communication method provided in the embodiments of the present application is described in detail.

[0146] For example, Figure 2 Schematic diagram of the communication method provided in this embodiment Figure 1 This communication method can be applied to Figure 1 The communication between the terminal device and the network device shown in FIG. Figure 2 As shown, the communication method includes the following steps:

[0147] S201: A network device determines a target uplink control resource and a target repetition factor.

[0148] The target repetition factor is used to receive an uplink signal on a target uplink control resource.

[0149] Exemplarily, the target uplink control resource may be a resource for receiving an uplink signal, such as a physical uplink control channel PUCCH. The target repetition factor is a repetition factor corresponding to the uplink signal, and is used to indicate the number of times the uplink signal is sent on the target uplink control resource.

[0150] Specifically, the network device may determine the target uplink control resource and the target repetition factor according to factors such as the configured uplink control resource and the measured channel state.

[0151] S202, the network device sends the first information, and the terminal device receives the first information.

[0152] The first information includes: the number of uplink control resources, the repetition factor, the first uplink resource index indication information, the total number of control channel elements (CCE) in the downlink control resource set CORESET, and the first resource index.

[0153] Exemplarily, the number of uplink control resources may be the number of all uplink control resources in the uplink control resource set where the uplink control resources used to send uplink signals are located. For example, uplink resource set 0 includes uplink control resources 0 to uplink control resource 7, and the number of uplink control resources is 8. For another example, uplink resource set 0 includes uplink control resources 0 to uplink control resources 15, and the number of uplink control resources is 16. The number of repetition factors may be the number of repetition factors in the above-mentioned first mapping relationship, which may be configured through RRC signaling. For example, the repetition factors in the first mapping relationship include repetition factor "2" and repetition factor "4", and the number of repetition factors is 2. The first uplink resource index indication information may be uplink control resource indication information (PUCCH resource indicator, PRI). The total number of control channel elements in the downlink control resource set may be the number of all control channel elements CCE in the downlink control resource set. For example, if a downlink control resource set contains 100 control channel elements in total, the total number of control channel elements in the downlink control resource set is 100. The first resource index may be the index of the first CCE occupied by the physical downlink control channel.

[0154] S203: The terminal device obtains a first index.

[0155] The first index is one of multiple indexes (hereinafter referred to as joint indexes for ease of distinction), and the joint index is used to indicate an uplink control resource and a repetition factor. One joint index corresponds to one uplink control resource and one repetition factor. In other words, one uplink control resource and one repetition factor constitute a combination, and one joint index corresponds to one such combination.

[0156] It can be understood that, in the present application, a joint index corresponds to an uplink control resource and a repetition factor, indicating that there is a corresponding relationship between a joint index and the indication information of a combination of an uplink control resource and a repetition factor. For example, a joint index corresponding to an uplink control resource and a repetition factor may include: a joint index corresponding to a repetition factor value and an uplink control resource, or a joint index corresponding to a repetition factor value and an uplink control resource identifier (e.g., an index), or a joint index corresponding to an index of a repetition factor and an uplink control resource identifier (e.g., an index).

[0157] For ease of understanding, the following example illustrates that the upper control resources include resource 0 and resource 1, and the repetition factors include repetition factors "2" and "4." As shown in Table 1, joint index 0 indicates resource 0 and repetition factor 2, joint index 1 indicates resource 0 and repetition factor 4, joint index 2 indicates resource 1 and repetition factor 2, and joint index 3 indicates resource 1 and repetition factor 4.

[0158] Table 1

[0159] Joint Index Uplink control resources Repetition factor 0 Resource 0 2 1 Resource 0 4 2 Resource 1 2 3 Resource 1 4

[0160] Optionally, the first index satisfies the following relationship:

[0161]

[0162] Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0163] It should be noted that formula (1) can be a relationship that the number of uplink control resources is greater than or equal to the uplink control resource number threshold, such as when the threshold is 8, the first index satisfies the relationship. In this case, PRI is used to indicate uplink control resources, and the number of state values indicated by PRI is 8, that is, Δ PRI Alternatively, formula (1) can also be a relationship that the first index satisfies when the number of combinations of uplink control resources and repetition factors is greater than or equal to the combination threshold, such as 8. In this case, PRI is used to indicate the combination of uplink control resources and repetition factors, and the number of state values indicated by PRI is 8, that is, Δ PRI The number of values of is 8. In formula (1), the “≤” symbol can also be the “<” symbol, and the “>” symbol can also be the “≥” symbol.

[0164] For example, the uplink control resource number threshold may be determined based on the number of possible PRI values. For example, if the possible PRI values range from 0 to 7, which are 8 in total, the uplink control resource number threshold may be 8.

[0165] Taking the uplink control resource set including 16 uplink control resources and 4 repetition factors as an example, in the above formula (1), n CCE，p / N CCE，p , Δ PRI and r re，rep The mapping relationship between and is shown in Table 2 below.

[0166] Table 2

[0167]

[0168] Table 2 continued

[0169]

[0170] Alternatively, optionally, the first index satisfies one of the following relationships:

[0171]

[0172] or,

[0173]

[0174] Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRIis the value of the first uplink resource index indication information.

[0175] Formula (2) or formula (3) can be the relationship satisfied by the first index when the number of uplink control resources is less than or equal to the uplink control resource number threshold, or when the number of combinations of uplink control resources and repetition factors is less than or equal to the combination threshold. In this case, PRI is used to indicate uplink control resources, and the number of state values indicated by PRI is the same as the number of uplink control resources, which is 8. That is, Δ PRI The number of possible values is 8.

[0176] Alternatively, formula (2) and formula (3) may also be a relationship where the number of combinations of uplink control resources and repetition factors is less than or equal to the combination threshold, such as when the threshold is 8, the first index satisfies the relationship. In this case, the number of status values indicated by the PRI is the same as the number of uplink control resources, that is, Δ PRI The number of values of is the same as the number of uplink control resources. If there are 4 types of uplink control resources, the possible values of the first uplink resource index indication information PRI are 4, which can be "000", "001", "010", "011" and "100". Correspondingly, Δ PRI The possible values of PRI are "0", "1", "2", "3", and "4". For another example, if the number of uplink control resources is 5, the first uplink resource index indication information can be indicated by 3 bits, and the possible values of the first uplink resource index indication information PRI are "000", "001", "010", "011", and "100". Correspondingly, Δ PRI The possible values of are "0", "1", "2", "3", "4".

[0177] In formula (2) and formula (3), the “≤” symbol may also be the “<” symbol, and the “>” symbol may also be the “≥” symbol.

[0178] It should be noted that, in the embodiment of the present application, when the number of uplink control resources is less than or equal to the uplink control resource number threshold, or when the number of combinations of uplink control resources and repetition factors is less than or equal to the combination threshold, the combination of repetition factor and uplink control resource can also be indicated by PRI, that is, the joint index can be indicated by PRI. For example, when the number of combinations of uplink control resources and repetition factors is less than or equal to the combination threshold, R is used. re，rep The value of a PRI indicates a joint index, that is, the number of combinations of uplink control resources and repetition factors. The value of a PRI indicates a joint index.

[0179] Formula (3) can be a simplified formula of Formula (2). For example, in R re，rep =R PUCCH ·R repetition When fΔ PRI <Rre，rep mod R PUCCH The situation does not exist, and formula (2) is simplified to obtain formula (3).

[0180] It can be understood that the implementation principle of the uplink control resource number threshold is similar to the implementation principle of the uplink control resource threshold in Formula 1, and will not be repeated here.

[0181] In the following example, the uplink control resource set includes 4 uplink control resources and 4 repetition factors. In the above formula (2) or formula (3), n CCE，p / N CCE，p , Δ PRI and r re，rep The mapping relationship between them is shown in Table 3 below.

[0182] Table 3

[0183]

[0184] Alternatively, optionally, the first index satisfies the following relationship:

[0185]

[0186] Among them, r re，rep is the first index, N CCE，p is the number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R repetition is the number of repetition factors, Δ PRI is the value of the first uplink resource index indication information.

[0187] It should be noted that formula (4) can be a relationship that the number of uplink control resources is less than or equal to the uplink control resource number threshold, such as when the threshold is 8, the first index satisfies the relationship. In this case, PRI is used to indicate uplink control resources, and the number of state values indicated by PRI is the same as the number of uplink control resources, which is 8. That is, Δ PRI The number of values.

[0188] Alternatively, formula (4) may also be a relationship where the number of combinations of uplink control resources and repetition factors is less than or equal to the combination threshold, such as when the threshold is 8, the first index satisfies the relationship. In this case, PRI is used to indicate the combination of uplink control resources and repetition factors, and the number of state values indicated by PRI is the same as the number of uplink control resources, that is, Δ PRI The number of values of is the same as the number of uplink control resources. PRI The realization of the value of can refer to the above formula (2) and formula (3) in Δ PRI The implementation method will not be described here.

[0189] In formula (4), the “≤” symbol may also be the “<” symbol, and the “>” symbol may also be the “≥” symbol.

[0190] Formula (4) can be a simplified formula of Formula (2) or Formula (3). For example, in R re，rep =R PUCCH ·R repetition When Δ PRI <R re，rep mod R pUCCH The situation does not exist, and formula (2) or formula (3) is simplified to obtain formula (4).

[0191] Taking the uplink control resource set including 4 uplink control resources and 4 repetition factors as an example, in the above formula (4), n CCE，p / N CCE，p , Δ PRI and r re，rep The mapping relationship between them can be referred to as shown in Table 3 above.

[0192] Alternatively, optionally, the first index satisfies the following relationship:

[0193]

[0194] Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0195] Taking the uplink control resource set including 16 uplink control resources and 4 repetition factors as an example, in the above formula (5), n CCE，p / N CCE，p , Δ PRI 、r re，rep The mapping relationship between and is shown in Table 4.

[0196] Table 4

[0197]

[0198] Table 4 continued

[0199]

[0200] Taking the uplink control resource set including 4 uplink control resources and 4 repetition factors as an example, in the above formula (6) or formula (7), n CCE，p / N CCE，p , Δ PRI and r re，rep The mapping relationship between them is shown in Table 5 below.

[0201] Table 5

[0202]

[0203] Alternatively, optionally, the first index satisfies the following relationship:

[0204]

[0205] Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R repetition is the number of repeated factors, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0206] It should be noted that formula (6) can be a simplified formula of formula (5). For example, R PUCCH ≤8, Can be replaced by R repetition , formula (6) is simplified to formula (5).

[0207] Taking the uplink control resource set including 16 uplink control resources and 4 repetition factors as an example, according to the above formula (6) or formula (7), n CCE，p / N CCE，p , Δ PRI and r re，rep The mapping relationship between them can be referred to as shown in Table 4 above, which will not be repeated here.

[0208] Taking the uplink control resource set including 8 uplink control resources and 4 repetition factors as an example, in the above formula (6), n CCE，p / N CCE，p , Δ PRI and r re，rep The mapping relationship between them can be referred to as shown in Table 3 above.

[0209] Alternatively, optionally, the first index satisfies the following relationship:

[0210]

[0211] Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0212] Taking the uplink control resource set including 16 uplink control resources and 4 repetition factors as an example, n in the above formula (7) is CCE，p / N CCE，p , Δ PRI 、r re，rep The mapping relationship between and can be referred to as shown in Table 2 above, which will not be repeated here. Taking the uplink control resource set including 8 uplink control resources and 4 repetition factors as an example, in the above formula (7), n CCE，p / N CCE，p , Δ PRI and r re，rep The mapping relationship between them is shown in Table 3 above.

[0213] Alternatively, optionally, the first index satisfies the following relationship:

[0214]

[0215] Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R repetition is the number of repeated factors, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0216] In any of formulas (5) to (8), the relationship satisfied by the first index may be when the number of uplink control resources is greater than 8, equal to 8, or less than 8. Alternatively, the relationship satisfied by the first index may be when the number of combinations of uplink control resources and repetition factors is greater than 8, equal to 8, or less than 8.

[0217] In any of the formulas (5) to (8), the “≤” symbol may be a “<” symbol, and the “>” symbol may be a “≥” symbol.

[0218] It should be noted that formula (8) can be a simplified formula of formula (7). For example, R PUCCH ≤8, Can be replaced by R repetition , formula (8) is simplified to formula (7).

[0219] Taking the uplink control resource set including 16 uplink control resources and 4 repetition factors as an example, according to the above formula (5), the determined n CCE，p / N CCE，p , Δ PRI and r re，rep The mapping relationship between them can be referred to as shown in Table 2 above, which will not be repeated here. Taking the uplink control resource set including 8 uplink control resources and 4 repetition factors as an example, in the above formula (7), n CCE，p / N CCE，p , Δ PRI and r re，rep The mapping relationship between them is shown in Table 3 above.

[0220] It should be noted that, in the embodiment of the present application, if the number of uplink control resources is less than 8, and the resource value is indicated by PRI, then the value of the first uplink resource index indication information is consistent with the number of uplink control resources that need to be indicated. For example, if the number of uplink control resources is 5, the first uplink resource index indication information can be indicated by 3 bits, and the possible values of the first uplink resource index indication information PRI are "000", "001", "010", "011" and "100". Accordingly, Δ PRI The possible values of are "0", "1", "2", "3", "4".

[0221] If the number of combinations of uplink control resources and repetition factors is greater than 8, the possible values of the PRI first uplink resource index indication information PRI are 8. If the number of combinations of uplink control resources and repetition factors is less than 8, the number of possible values of the PRI first uplink resource index indication information PRI is the same as the number of uplink control resources. For example, if there are 4 uplink control resources, the possible values of the first uplink resource index indication information PRI are 4, which can be "000", "001", "010", "011" and "100". Correspondingly, Δ PRI The possible values of are "0", "1", "2", "3", "4".

[0222] Exemplarily, the target uplink control resource may be an uplink control resource used to transmit an uplink signal, such as a physical uplink control channel PUCCH. The target repetition factor is a repetition factor corresponding to the uplink signal, and is used to indicate the number of times the uplink signal is transmitted on the target uplink control resource.

[0223] In this way, different joint indexes can be determined through different combinations of the PRI and the first resource index, thereby enabling flexible indication of different repetition factors and uplink control resources, further improving communication efficiency.

[0224] In a possible design scheme, the above step S203, in which the terminal device obtains the first index, may include step 1 and step 2.

[0225] Step 1: The terminal device obtains configuration information.

[0226] The configuration information may include: the number of uplink control resources, the number of repetition factors corresponding to the first mapping relationship, the first uplink resource index indication information, the total number of control channel elements CCE in the downlink control resource set CORESET, and the first resource index.

[0227] Exemplarily, the number of uplink control resources may be the number of uplink control resources in the uplink control resource set. For example, uplink resource set 0 includes uplink control resources 0 to uplink control resource 7, and the number of uplink control resources is 8. For another example, uplink resource set 0 includes uplink control resources 0 to uplink control resources 15, and the number of uplink control resources is 16. The number of repetition factors may be the number of repetition factors in the first mapping relationship, and may be configured through RRC signaling. The first mapping relationship is determined based on the repetition factor set and the resource set. For example, if the repetition factors in the first mapping relationship include repetition factor "2" and repetition factor "4", the number of repetition factors is 2.

[0228] The first uplink resource index indication information may be uplink control resource indication information (PUCCH resource indicator, PRI). In different DCIs, PRI may be 3 bits or 0 to 3 bits. The first uplink resource index indication information may also be timing indication information, and the timing indication information may be the physical downlink shared channel (PDSCH) to HARQ feedback timing indication (PDSCH-to-HARQ_feedback timing indicator) field in the DCI. It may be used to indicate that the terminal device transmits response information, such as an acknowledgement (ACK) or a negative acknowledgement (NACK). In the hybrid automatic repeat request (HARQ) mechanism, ACK and NACK are collectively referred to as HARQ-ACK information. For example, the HARQ-ACK information in DCI format1_0, DCI format1_1, and DCI format1_2 are 3 bits, 0 to 3 bits, and 0 to 3 bits, respectively.

[0229] The total number of control channel elements in the downlink control resource set may be the number of all control channel elements in the downlink control resource set. For example, if a downlink control resource set includes 100 control channel elements, the total number of control channel elements in the downlink control resource set is 100. The first resource index may be the index of the first CCE occupied by the physical downlink control channel.

[0230] It should be noted that the modulus of the index of the first CCE occupied by the physical downlink control channel (which may be the index value) and the aggregation level of the downlink channel (which may be the value of the aggregation level) is 0.

[0231] Step 2: Determine the first index according to the configuration information.

[0232] Specifically, the terminal device determines the first index according to the configuration information, which may include: the terminal device determines the first index according to one of formulas (1) to (8).

[0233] Specifically, if the number of uplink control resources is greater than the uplink control resource number threshold, or the number of combinations of uplink control resources and repetition factors is greater than the combination threshold, the terminal device can determine the first index according to formula (1). It should be noted that if the number of uplink control resources is equal to the uplink control resource number threshold, or the number of combinations of uplink control resources and repetition factors is equal to the combination threshold, the terminal device can also determine the first index according to formula (1). Alternatively, if the number of uplink control resources is less than or equal to the uplink control resource number threshold, or the number of combinations of uplink control resources and repetition factors is less than or equal to the combination threshold, the terminal device can determine the first index according to one of the following: the above formula (2), the above formula (3), or the above formula (4). Alternatively, the terminal device determines the first index according to one of the following: formula (5), formula (6), formula (7) and formula (8).

[0234] It should be noted that, in the embodiment of the present application, formula (1) to formula (8) are only used for examples. In specific implementation, other methods can also be used to obtain the first index. For example, according to Tables 2 to 5, n CCE，p / N CCE，p , Δ PRI and r re，rep The mapping relationship between them is used to obtain the first index.

[0235] S204, the terminal device determines, according to the first mapping relationship: the target uplink control resource and the target repetition factor corresponding to the first index.

[0236] In the first mapping relationship, one joint index corresponds to one repetition factor and one uplink control resource. The target repetition factor is used to send an uplink signal on the target uplink control resource.

[0237] Exemplarily, one joint index corresponds to one repetition factor and one uplink control resource, that is, one uplink control resource and one repetition factor together correspond to one joint index.

[0238] For example, the first mapping relationship may be a mapping relationship between repetition factors in the first repetition factor set and uplink control resources in the uplink control resource set. In the following, the uplink control resources include resource 0 and resource 1, and the repetition factors include repetition factor "2" and repetition factor "4".

[0239] As shown in Table 1 above, joint index 0 corresponds to resource 0 and repetition factor 2, joint index 1 corresponds to resource 0 and repetition factor 4, joint index 2 corresponds to resource 0 and repetition factor 2, and joint index 3 corresponds to resource 0 and repetition factor 4.

[0240] It should be noted that, in some possible design solutions, in the first mapping relationship, a joint index may also correspond to a repetition factor index and an uplink control resource index.

[0241] For example, consider the case where the uplink control resources include resource 0 and resource 1, and the repetition factors include repetition factors "2" and "4." Resource 0 and resource 1 are indexed by resource index 0 and resource index 1, respectively. Repetition factor "2" is indexed by repetition factor 0, and repetition factor "4" is indexed by repetition factor 1. The mapping relationship between the joint index, repetition factor index, and uplink control resource index is shown in Table 6.

[0242] Table 6

[0243] Joint Index Uplink control resource index Repeat factor index 0 Resource 0 Repetition factor 0 1 Resource 0 Repetition factor 1 2 Resource 1 Repetition factor 0 3 Resource 1 Repetition factor 1

[0244] In one possible design embodiment of the present application, Figure 2 The communication method shown may further include: the network device sends downlink control information or a media access control-control information element to the terminal device. The terminal device obtains the first indication information.

[0245] The first indication information is used to indicate a first repetition factor set, and the first repetition factor set is one of multiple repetition factor sets.

[0246] Optionally, the terminal device obtaining the first indication information may include: the terminal device receiving downlink control information or a media access control-control information element to obtain the first indication information. In other words, the first indication information may be carried in the downlink control information or the media access control-control information element.

[0247] Exemplarily, the first indication information may be used to indicate a first repetition factor set. The first repetition factor set may be a set of all repetition factors in the first mapping relationship.

[0248] The first indication information may be carried in the downlink control information. For example, the first indication information may be carried in one or more of the following items of the downlink control information: modulation and coding scheme indication information, carrier indication information, antenna port indication information, or priority indication information. The modulation and coding scheme indication information may also be referred to as a modulation and coding (modulationand coding scheme) field, the carrier indication information may also be referred to as a carrier indicator field, the antenna port indication information may also be referred to as an antenna port (Antenna port(s)) field, and the priority indication information may also be referred to as a priority indicator (priority indicator) field.

[0249] It can be understood that the first indication information may also be a newly added field in the downlink control information.

[0250] Specifically, the first indication information may include bits in one or more fields of the downlink control information. The first indication information may also be carried in a media access control-control information element, or the first indication information may be carried in a field of the downlink control information and in a media access control-control information element. For example, if the repetition factor set includes two, only one bit is required to indicate the repetition factor. In this case, the first indication information may be carried in a field of the downlink control information or in a media access control-control information element.

[0251] If the repetition factor includes a total of 4, a 2-bit indication is required. In this case, one bit of the first indication information can be carried in the downlink control information field, and the other bit can be carried in the media access control-control information element. Alternatively, both bits of the first indication information can be carried in the downlink control information field. Alternatively, both bits of the first indication information can be carried in the media access control-control information element.

[0252] It should be noted that if some fields in the downlink control information cannot be used to carry the bits of the first indication information, the corresponding bits can be carried by other fields of the downlink control information. For example, when coverage is limited, the first indication information can be carried in the carrier indication information, the antenna port indication information, or the priority indication information. For another example, when coverage is not limited, the first indication information can be carried in other information other than the carrier indication information, such as the modulation and coding scheme indication information. When specifically indicating, it can be indicated by the most significant bit or the least significant bit of the corresponding information, or it can be indicated by the status value of the corresponding information. For example, in 3-bit information, the status value can be "111" or "110".

[0253] In addition, the first indication information can be provided either implicitly or explicitly. For example, the first repetition factor set can be implicitly indicated via modulation and coding scheme indication information. Exemplarily, the first repetition factor set can be determined based on the interval in which the MCS index is located. If the MCS index is large, such as one of MCS index 17 to MCS index 28, then a smaller repetition factor set, such as {1, 2}, corresponds. If the MCS index is small, such as one of MCS index 0 to MCS index 16, then a larger repetition factor set, such as {4, 8}, corresponds.

[0254] The first indication information may also be a combination of explicit indication and implicit indication. For example, when the first indication information is implemented using two bits, one bit of the first indication information may be indicated by explicit indication, and the other bit of the first indication information may be indicated by implicit indication.

[0255] Alternatively, optionally, the terminal device receives downlink control information and obtains a radio network temporary identifier (RNTI) used to scramble the downlink control information from the downlink control information to obtain the first indication information. In other words, the first indication information is the RNTI used to scramble the downlink control information. Specifically, when two repetition factor sets are configured, the first indication information can be 1 bit.

[0256] In an embodiment of the present application, the first repetition factor set of the terminal device can also be determined based on the modulation and coding scheme index table (MCS index table). For example, if the target code rate or target modulation order corresponding to the modulation and coding scheme index table (MCSindex table) configured on the terminal device side is low, the first repetition factor set can be determined to be a larger repetition factor set, such as repetition factors {4, 8}. For another example, if the target code rate or target modulation order corresponding to the modulation and coding scheme index table (MCSindex table) configured on the terminal device side is high, the first repetition factor set can be determined to be a smaller repetition factor set, such as repetition factors {1, 2}.

[0257] It should be noted that in the embodiments of the present application, the repetition factor set may also be determined by the protocol. It is understood that in the embodiments of the present application, there may be only one repetition factor set. In this case, this repetition factor set is the first repetition factor set. When there is only one repetition factor set, it may also be configured by RRC signaling or determined by the protocol.

[0258] After the terminal device obtains the first indication information, the terminal device determines a first mapping relationship based on the first repetition factor set and the uplink control resource set.

[0259] In this way, a repetition factor set can be selected from multiple repetition factor sets, and the first mapping relationship can be determined based on the selected repetition factor set. For example, the repetition factor set can be selected based on the scenario, which can make the indication of the repetition factor more flexible, thereby further improving communication efficiency.

[0260] Furthermore, Figure 2 The communication method may further include: the network device sending second indication information, and the terminal device receiving the second indication information. The second indication information is used to indicate multiple repetition factor sets. In other words, the network device can configure multiple repetition factor sets for the terminal device by sending the second indication information.

[0261] Exemplarily, the second indication information may be a radio resource control (RRC) message.

[0262] In this way, different repetition factor sets can be dynamically configured. For example, the repetition factor set can be configured according to the scenario, thereby making the indication of the repetition factor more flexible, thereby further improving communication efficiency.

[0263] The following uses the first or second method as an example to illustrate how to determine the first mapping relationship.

[0264] Method 1: first determine the joint index according to the ascending order of the repetition factor index, and then determine the joint index according to the ascending order of the uplink control resource index. For ease of understanding, the following is a detailed description with reference to an example.

[0265] The uplink control resources in an uplink control resource set include resources 0 through 15. The repetition factor set includes repetition factors 0 through 3, which correspond to repetition factors of 1, 2, 4, and 8, respectively. Table 7 shows the correspondence between uplink control resources and repetition factors. Each uplink control resource in resources 0 through 15 corresponds to a repetition factor of 4.

[0266] Table 7

[0267] Uplink control resources Repetition factor 0 Repetition factor 1 Repetition factor 2 Repetition factor 3 Resource 0 1 2 3 4 Resource 1 1 2 3 4 Resource 2 1 2 3 4 Resource 3 1 2 3 4 Resource 4 1 2 3 4 Resource 5 1 2 3 4 Resource 6 1 2 3 4 Resource 7 1 2 3 4 Resource 8 1 2 3 4 Resource 9 1 2 3 4 Resource 10 1 2 3 4 Resource 11 1 2 3 4 Resource 12 1 2 3 4 Resource 13 1 2 3 4 Resource 14 1 2 3 4 Resource 15 1 2 3 4

[0268] When determining the first mapping relationship, first, from left to right, determine the joint index corresponding to the combination of resource 0 and each repetition factor, and then, from left to right, determine the joint index corresponding to the combination of resource 1 and each repetition factor, ..., until the joint index of the combination of resource 15 and the repetition factor "4" is determined.

[0269] Figure 7 The mapping relationship between the uplink control resource, repetition factor and joint index in is shown in Table 8.

[0270] Table 8

[0271]

[0272]

[0273]

[0274] Method 2: first determine the joint index according to the uplink control resource index in ascending order, and then determine the joint index according to the repetition factor index in ascending order. For easier understanding, the following is a detailed description with reference to an example.

[0275] As shown in Table 7, the uplink control resources in an uplink control resource set include resources 0 to 15, and the repetition factors include repetition factors "1", "2", "4" and "8". Each resource from resource 0 to resource 15 corresponds to 4 repetition factors. When determining the first mapping relationship, first, from top to bottom, determine the joint index corresponding to the combination of repetition factor "1" and each uplink control resource, and then, from top to bottom, determine the joint index corresponding to the combination of repetition factor "2" and each repetition factor, ..., until the joint index of the combination of repetition factor "4" and resource 15 is determined. The mapping relationship between repetition factor, uplink control resource, and joint index is shown in Table 9.

[0276] Table 9

[0277]

[0278]

[0279]

[0280] It is understood that in the embodiment of the present application, the first mapping relationship may also be determined in other ways, and the mapping relationship between the uplink control resource, the repetition factor, and the joint index in the first mapping relationship is not limited to the examples shown in Tables 8 and 9. For example, in Table 9, the repetition factor 8 and the resource 14 may correspond to the joint index 63, and the repetition factor 8 and the resource 15 may correspond to the joint index 62.

[0281] Furthermore, Tables 8 and 9 are merely examples of the first mapping relationship. In some possible implementations, the mapping relationship may be implemented in other ways. For example, the first mapping relationship may be implemented in the form of an array. As shown in Table 9, when the first mapping relationship is implemented in an array, the mapping relationship between the repetition factor 8, the resource 15, and the joint index 63 is {8, 15, 63}.

[0282] For example, the target uplink control resource may be implemented by referring to the implementation method of the target uplink control resource in step S201, and the target repetition factor may be implemented by referring to the implementation method of the target repetition factor in step S202, which will not be described in detail here.

[0283] Exemplarily, if in the first mapping relationship, a joint index corresponds to a repetition factor and an uplink control resource, then in the above step S204, the terminal device determines, according to the first mapping relationship: the target uplink control resource and the target repetition factor corresponding to the first index, which may include: the terminal device determines the target uplink control resource and the target repetition factor from the mapping relationship among the joint index, the uplink control resource and the repetition factor.

[0284] The first mapping relationship is as follows Figure 8As shown in the example, if the first index is the joint index 7, then the target uplink control resource can be determined to be resource 1, and the target repetition factor is "8".

[0285] Exemplarily, if in the first mapping relationship, a joint index corresponds to an index of a repetition factor and an index of an uplink control resource, then in the above step S204, the terminal device determines according to the first mapping relationship: the target uplink control resource and target repetition factor corresponding to the first index, which may include steps 3 and 4.

[0286] Step 3: The terminal device determines the index of the target uplink control resource and the index of the target repetition factor based on the first index.

[0287] Optionally, if the first mapping relationship is determined according to the above-mentioned method 1, the index of the target uplink control resource and the index of the target repetition factor satisfy the following relationship:

[0288]

[0289] rep_index=r re，rep mod R repetition ; (10)

[0290] Among them, re_index is the index of the target uplink control resource, rep_index is the index of the target repetition factor, R repetition is the number of repetition factors, r re，rep It is the joint index corresponding to the combination of target uplink control resource and target repetition factor.

[0291] Alternatively, optionally, if the first mapping relationship is determined according to the above-mentioned second method, the index of the target uplink control resource and the index of the target repetition factor satisfy the following relationship:

[0292] re_index=r re，rep mod R PUCCH ; (11)

[0293]

[0294] Among them, re_index is the index of the target uplink control resource, rep_index is the index of the target repetition factor, R PUCCH is the number of uplink control resources, r re，rep It is the joint index corresponding to the combination of target uplink control resource and target repetition factor.

[0295] It should be noted that in the embodiments of the present application, formulas (9) to (12) are only used for examples. In specific implementations, other implementation methods may also be used to obtain the index of the target repetition factor and the index of the target uplink control resource.

[0296] Step 4: The terminal device determines the target uplink control resource and the target repetition factor based on the index of the target uplink control resource and the index of the target repetition factor.

[0297] Exemplarily, if the index re_index of the target uplink control resource is "0", the target uplink control resource is resource 0. If the index rep_index of the target repetition factor is "3", the target repetition factor is "4".

[0298] It can be understood that in the embodiment of the present application, the target uplink control resource and the target repetition factor can also be determined according to the coordinates of the joint index. For example, after calculating the index of the target uplink control resource and the index of the target repetition factor according to the above formulas (9) and (10), or according to the above formulas (11) and (12), the coordinates of the first index are determined according to the index of the target uplink control resource and the index of the target repetition factor. Specifically, the position coordinates of the target uplink control resource are re_index+1. The index of the target repetition factor is rep_index, and the position coordinates of the repetition factor are rep_index+1. Taking the repetition factor as the horizontal coordinate and the resource as the vertical coordinate as an example, if the horizontal coordinate of repetition factor 0 is 1, the horizontal coordinates of repetition factor 0 to repetition factor 3 are horizontal coordinate "1" to horizontal coordinate "4" respectively, and the vertical coordinates of resource 0 to resource 15 are vertical coordinate "1" to vertical coordinate "16" respectively. The position coordinates corresponding to target repetition factor 0 to target repetition factor 3 and resource 0 to resource 15 are shown in Table 10. If the index of the target uplink resource is "0" and the index of the target repetition factor is "2", it can be determined that the coordinates corresponding to the target uplink resource and the target repetition factor are (3, 1).

[0299] Table 10

[0300]

[0301]

[0302] In the embodiment of the present application, the target repetition factor can also be determined by the first index through RRC signaling. In other words, in the embodiment of the present application, the target repetition factor is determined by the first index. Figure 2 The method shown determines the repetition factor and can be controlled by RRC signaling.

[0303] In this way, the same uplink control resource can correspond to multiple repetition factors, and the target repetition factor is determined from the repetition factors corresponding to the uplink control resource according to the index, making the indication of the repetition factor more flexible. For example, the repetition factor can be indicated according to the channel environment, thereby improving communication efficiency.

[0304] In addition, the index can be determined by existing fields to achieve implicit indication of the repetition factor without adding new fields, thereby avoiding additional resource overhead and further improving communication efficiency.

[0305] In addition, the repetition factor can be indicated under different conditions, such as coverage-limited conditions or non-coverage-limited conditions, through the index, which can improve the flexibility of the repetition factor indication, thereby further improving the communication efficiency.

[0306] In summary, Figure 2 The communication method shown can balance resource overhead and flexibility, thereby improving communication efficiency.

[0307] In the embodiment of the present application, the repetition factor can also be indicated based on the index of the first CCE occupied by the physical downlink control channel and the total number of control channel elements (CCEs) in the downlink control resource set. The index of the target repetition factor satisfies the following relationship:

[0308]

[0309] Among them, rep_index is the index of the target repetition factor, NCCE, p is the number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R repetition is the number of repetition factors.

[0310] Specifically, the index of the repetition factor can be determined according to formula (13), and then the repetition factor can be determined according to the index of the repetition factor.

[0311] In the embodiment of the present application, the formula To round up, To round down.

[0312] Figure 3 This is a flow diagram of the communication method provided in the embodiment of the present application. Figure 2 This communication method can be applied to Figure 1 Communication between terminal devices and network devices is shown. Figure 3 The communication methods shown include:

[0313] S301: The network device determines a target uplink control resource and a target repetition factor.

[0314] The target repetition factor is used to receive an uplink signal on a target uplink control resource.

[0315] For the implementation of step S301, please refer to the above Figure 2 The implementation method of step S201 in will not be repeated here.

[0316] S302: The network device sends association information indication information.

[0317] The association information indication information is used to indicate target association information. The association information indication information is carried in downlink control information or media access control-control information element. Alternatively, the association information indication information is downlink control information scrambled by the first RNTI.

[0318] Regarding the implementation method of the associated indication information, reference may be made to the implementation method of the first indication information described above, which will not be repeated here.

[0319] S303: The terminal device obtains third indication information.

[0320] The third indication information is used to indicate target association information, and the target association information is one of a plurality of candidate association information. One candidate association information includes: a mapping relationship between each uplink control resource and a repetition factor in an uplink control resource set.

[0321] In a possible design, the candidate association information may also be pre-configured by RRC or determined by a protocol.

[0322] In one possible design, the candidate association information may be related to a format of an uplink control resource set or an uplink channel, such as an uplink control channel PUCCH.

[0323] For example, uplink channel format 1 has a better link budget than uplink channel format 2, but a worse link budget than uplink channel format 2. Therefore, the repetition factor of the uplink control resources of uplink channel format 1 can be smaller than the repetition factor of the uplink control resources of uplink channel format 2. Similarly, the repetition factor of the uplink control resources of uplink channel format 3 can be smaller than the repetition factor of the uplink control resources of uplink channel format 1. It should be noted that the uplink channel can be an uplink control channel PUCCH.

[0324] For example, there is a correspondence between the uplink control resource set and the uplink channel format. Uplink control resource set 0 is usually used for the transmission of uplink channel format 0 and uplink channel format 1. Therefore, the repetition factor corresponding to each uplink control resource in the associated information can be determined according to the format of the uplink control resource.

[0325] In this way, association information can be determined based on different uplink control resource sets or uplink channel formats. For example, configuring a repetition factor related to the uplink control resource set or uplink channel format can better adapt to different scenarios and increase the flexibility of the transmission repetition factor.

[0326] It should be noted that the mapping relationship between uplink control resources and repetition factors is different in different candidate association information.

[0327] Taking the uplink control resource set including resources 0 to 7 as an example, if candidate association information 0 includes repetition factors "1" and "2", the mapping relationship between the uplink control resources and the repetition factors is shown in Table 11 below. If candidate association information 1 includes repetition factors "4" and "8", the mapping relationship between the uplink control resources and the repetition factors is shown in Table 12 below.

[0328] Table 11

[0329] Uplink control resources Repetition factor Resource 0 1 Resource 1 2 Resource 2 1 Resource 3 2 Resource 4 1 Resource 5 2 Resource 6 1 Resource 7 2

[0330] Table 12

[0331] Uplink control resources Repetition factor Resource 0 4 Resource 1 8 Resource 2 4 Resource 3 8 Resource 4 4 Resource 5 8 Resource 6 4 Resource 7 8

[0332] In one possible design, the third indication information may be carried in one or more of the following: downlink control information or a media access control-control information element. The downlink control information includes one or more of the following: modulation and coding scheme indication information, carrier indication information, antenna port indication information, or priority indication information.

[0333] The implementation of downlink control information or media access control-control information element can refer to the above Figure 2 In the corresponding communication method, the specific implementation of the downlink control information or the media access control-control information element will not be repeated here.

[0334] Specifically, in an embodiment of the present application, if there are two candidate association information, one bit is required to indicate the target association information. That is, the third indication information can be one bit. For example, when coverage is limited, the third indication information can be one bit in the modulation and coding scheme indication information or the media access control-control information element. Modulation and coding scheme indication information, carrier indication information, antenna port indication information, priority indication information, or one bit in the media access control-control information element. Similarly, if there are three or more candidate association information, two or more bits are required to indicate the target association information.

[0335] For example, if the MCS index table is 3, then coverage is determined to be limited. Alternatively, if the antenna port indication information is determined, for example, if the antenna port indication information indicates an antenna port table via 4 bits, then coverage may be determined to be limited.

[0336] In embodiments of the present application, the associated information can be indicated by the status value of the antenna port indication information indicating a larger number of ports. Alternatively, the associated information can be indicated by the most significant bit or least significant bit in the antenna port indication information. Alternatively, the associated information can be indicated by a bit in newly added antenna port indication information. For example, if the configured antenna port table is indicated by 4 bits, the antenna port indication information can be configured as 5 bits, thereby using 1 bit to indicate the associated information, or using a partial status value consisting of 5 bits to indicate the associated information.

[0337] It can be understood that in the embodiment of the present application, the repetition factor is indicated by using downlink control information and / or media access control-control information element, and can also be configured by RRC signaling.

[0338] It should be noted that, in an embodiment of the present application, if the third indication information has multiple bits, then each bit of the third indication information may include bits from one or more existing fields in the downlink control information, and may also include multiple bits in the media access control-control information element. Alternatively, the third indication information may also include bits from one or more existing fields in the downlink control information, and multiple bits in the media access control-control information element. For example, in a coverage-limited case, the third indication information may include bits from one or more of the following: modulation and coding scheme indication information, carrier indication information, antenna port indication information, priority indication information, and media access control-control information element. In a non-coverage-limited case, the third indication information may include bits from the media access control-control information element. It will be understood that the bits included in the third indication information may also be bits from other newly added fields in the downlink control information.

[0339] Regarding the specific implementation of the third indication information, you can refer to the implementation method of the first indication information mentioned above, which will not be repeated here.

[0340] For example, if the candidate association information configured on the terminal device side includes candidate association information 0 and candidate association information 1, the third indication information may be 1 bit. If the third indication information is a binary number "0", it indicates candidate association information 0. If the third indication information is a binary number "1", it indicates candidate association information 1.

[0341] In one possible design, the terminal device obtains the third indication information, which may include: the terminal device receives downlink control information, the downlink control information is scrambled by the first RNTI, and the terminal device obtains target association information corresponding to the first RNTI.

[0342] The multiple candidate association information respectively correspond to different RNTIs used to scramble downlink control information.

[0343] In the embodiment of the present application, the RNTI may be a cell radio network temporary identity (C-RNTI), a configured scheduling radio network temporary identity (CS-RNTI), or the like.

[0344] In other words, the third indication information can be an RNTI, with different RNTIs corresponding to different candidate association information. For example, a C-RNTI corresponds to one candidate association information, and a CS-RNTI corresponds to another candidate association information. Specifically, the C-RNTI corresponds to candidate association information 0, and the CS-RNTI corresponds to candidate association information 1. If the RNTI in the downlink control information is a C-RNTI, the target association information is candidate association information 0. In this way, the RNTI can be obtained based on the downlink control information, thereby avoiding additional resource overhead and further improving communication efficiency.

[0345] S304: The terminal device determines a target repetition factor of the target uplink control resource according to the target association information.

[0346] The target uplink control resource is the uplink control resource indicated by the fourth indication information, and the target repetition factor is used to send an uplink signal on the target uplink control resource.

[0347] The uplink signal may be a physical uplink control channel PUCCH or uplink data.

[0348] For example, the fourth indication information may be a PRI. The target uplink control resource may be determined based on the PRI. Regarding the implementation of the target uplink control resource, reference may be made to existing implementation methods of uplink control resources, which will not be described in detail here.

[0349] The following describes in detail how to determine the target repetition factor of the target uplink control resource.

[0350] Specifically, the target association information is determined according to the third indication information, and then the target repetition factor is determined in the target association information according to the determined target uplink control resource.

[0351] Taking the target relationship information as the association information in Table 12 above as an example, if the target uplink control resource determined according to the PRI is resource 1, the target repetition factor is the repetition factor "8" corresponding to resource 1.

[0352] Figure 3The communication method shown can select a piece of association information from multiple pieces of association information, then determine a target repetition factor set from the selected association information, and thus determine a target repetition factor. In this way, by selecting association information using the third indication information, the target repetition factor can be selected from the repetition factors corresponding to the target uplink control resource, thereby increasing the flexibility of repetition factor indication and thereby improving communication efficiency.

[0353] In addition, the associated information is indicated by the third indication information, and the repetition factor can be implicitly indicated through the uplink control resource indication information. The implicit indication of the repetition factor can be achieved through the existing field without the need for adding a new field to avoid additional resource overhead, thereby further improving communication efficiency.

[0354] By selecting associated information through the third indication information, different association relationships can also be selected according to channel conditions, such as selecting associated information with a large repetition factor when coverage is limited, and selecting associated information with a small repetition factor when coverage is not limited, thereby improving flexibility and further improving communication efficiency.

[0355] In summary, Figure 3 The communication method shown and described can take into account both resource overhead and flexibility, thereby improving communication efficiency.

[0356] Figure 4 This is a flow diagram of the communication method provided in the embodiment of the present application. Figure 3 This communication method can be applied to Figure 1 Communication between terminal devices and network devices is shown. Figure 4 The communication methods shown include:

[0357] S401: The network device determines a target uplink control resource and a target repetition factor.

[0358] The target repetition factor is used to receive an uplink signal on a target uplink control resource.

[0359] For the implementation of step S401, please refer to the above Figure 2 The implementation method of step S201 in will not be repeated here.

[0360] S402, the network device sends fifth indication information, and the terminal device receives the fifth indication information.

[0361] The fifth indication information is carried in one or more of the following: downlink control information, or a media access control-control information element. The fifth indication information corresponds to a repetition factor.

[0362] Exemplarily, the fifth indication information is information that can be used for downlink indication, such as modulation and coding scheme MCS indication information, carrier indication information, and antenna port indication information. The downlink indication may be related parameters and configurations indicating PDSCH reception.

[0363] S403: The terminal device determines a target repetition factor according to the fifth indication information.

[0364] The target repetition factor is used to send an uplink signal on a target uplink control resource.

[0365] In one possible design, the fifth indication information may include one or more of the following: modulation and coding scheme (MCS) indication information, carrier indication information, antenna port indication information, or priority indication information. In this way, existing fields in the downlink control information can be utilized to indicate the repetition factor, thereby reducing overhead and improving efficiency.

[0366] Exemplarily, the modulation and coding scheme indication information may also be referred to as a modulation and coding field. For example, the modulation and coding field may be a field in DCI_format1_0, DCI_format1_1, or DCI_format1_2. The carrier indication information may also be referred to as a carrier indicator field, the antenna port indication information may also be referred to as an antenna port (Antenna port(s)) field, and the priority indication information may also be referred to as a priority indicator field.

[0367] It should be noted that, in the embodiment of the present application, the repetition factor can also be indicated by other newly added fields.

[0368] Exemplarily, in an embodiment of the present application, the fifth indication information may indicate the repetition factor in one of the following three ways: implicit indication, explicit indication, or a combination of explicit indication and implicit indication.

[0369] For ease of understanding, the implicit indication is explained below in conjunction with the MCS indication information and the antenna port number indication information.

[0370] Optionally, the modulation and coding scheme indication information is used to indicate an MCS index (MCS index), and the repetition factor may be related to the MCS index and / or a modulation order (modulation order) corresponding to the MCS index.

[0371] Specifically, the repetition factor can be determined based on the MCS index, or based on the modulation order corresponding to the MCS index, or based on both the MCS index and the modulation order corresponding to the MCS index. Furthermore, the MCS index can include at least two intervals, each of the at least two intervals corresponding to a repetition factor.

[0372] It can be understood that the MCS index threshold can be configured by RRC signaling or determined by a protocol.

[0373] Exemplarily, the interval corresponding to the MCS index can be divided according to the data segment where the MCS index is located. For example, for MCS index 0-MCS index 28, MCS index 0-MCS index 16 can be designated as one interval, and MCS index 17-MCS index 28 can be designated as another interval. The interval corresponding to the MCS index can also be determined based on one or more MCS index thresholds. The threshold number of MCS indexes and the number of repetition factors satisfy the following relationship: N1=M1-1. Among them, M1 is the number of repetition factors, and N1 is the threshold number of MCS indexes. For example, for MCS index 0-MCS index 28, if the MCS index threshold is 17, it can be determined that MCS indexes with an index less than 17 belong to one interval, and indexes greater than or equal to 17 belong to another interval.

[0374] The following describes the correspondence between intervals and repetition factors in conjunction with Table 13.

[0375] As shown in Table 13, the MCS index includes MCS index 0 to MCS index 31. If MCS index 29 to MCS index 31 are reserved indexes, and MCS index 0 to MCS index 28 are divided into two MCS index intervals, namely, MCS index 0 to MCS index 16 and MCS index 17 to MCS index 28, the MCS indexes in the interval of MCS index 0 to MCS index 16 correspond to a repetition factor, such as a repetition factor of "4", and the MCS indexes in the interval of MCS index 17 to MCS index 28 correspond to a repetition factor, such as a repetition factor of "2".

[0376] Table 13

[0377]

[0378] Table 13 continued

[0379]

[0380] Alternatively, further, the modulation order corresponding to the MCS index may include at least two intervals, and each of the at least two intervals corresponds to a repetition factor.

[0381] Exemplarily, the interval of modulation orders (hereinafter referred to as modulation orders) corresponding to MCS indices can be divided according to the data segments in which the modulation orders are located. For example, for MCS indices 0 to 28, if the modulation order corresponding to MCS indices 0 to 9 is 2, the modulation order corresponding to MCS indices 10 to 16 is 4, and the modulation order corresponding to MCS indices 17 to 28 is 6, then modulation orders 2 and 4 can be specified to belong to one interval, and modulation order 6 to belong to another interval.

[0382] Table 14

[0383]

[0384] Table 14 continued

[0385]

[0386] The interval of the modulation order can also be determined based on one or more modulation order thresholds. The threshold number of modulation orders corresponding to the MCS index and the number of repetition factors satisfy the following relationship: N2 = M2-1. Among them, M2 is the number of repetition factors, and N2 is the threshold number of modulation orders corresponding to the MCS index. For example, for MCS index 0-MCS index 28, if the modulation order threshold is 6, it can be determined that modulation orders less than 6 belong to one interval, and modulation orders greater than or equal to 6 belong to another interval. The following is a description of the correspondence between intervals and repetition factors in conjunction with Table 14.

[0387] As shown in Table 14, the MCS index includes MCS index 0 to MCS index 28. If the modulation order ranges are: modulation order less than 6 and modulation order greater than or equal to 6, then the MCS indexes in the range of MCS index 0 to MCS index 16 correspond to a repetition factor, such as a repetition factor of "4", and the MCS indexes in the range of MCS index 17 to MCS index 28 correspond to a repetition factor, such as a repetition factor of "2".

[0388] It can be understood that the modulation order threshold can be configured by RRC signaling or determined by a protocol.

[0389] In this way, the repetition factor can be implicitly indicated based on the MCS index or modulation order indicated by the modulation and coding scheme indication information, and the repetition factor can be indicated under different coverage conditions, such as coverage-limited or non-coverage-limited conditions, so as to flexibly implement the indication of the repetition factor, thereby further improving communication efficiency.

[0390] Optionally, the repetition factor can be determined based on a modulation and coding scheme index table (MCS index table). One modulation and coding scheme index table corresponds to one repetition factor. For example, if the code rate corresponding to the modulation and coding scheme index table (MCS index table) configured on the terminal device side is low, such as modulation and coding scheme index table 3, the target repetition factor can be determined to be a larger repetition factor, such as repetition factor 8. For another example, if the code rate corresponding to the modulation and coding scheme index table (MCS index table) configured on the terminal device side is high, the target repetition factor can be determined to be a smaller repetition factor, such as repetition factor 2.

[0391] Optionally, the repetition factor may correspond to the number of modulation and demodulation reference signal ports.

[0392] Furthermore, the number of modulation and demodulation reference signal ports may include at least two intervals, and each of the at least two intervals corresponds to a repetition factor.

[0393] Exemplarily, the interval of the number of modulation and demodulation reference signal ports indicated by the antenna port indication information can be divided according to the data segment where the number of modulation and demodulation reference signal ports is located. For example, for the antenna port indication information where the number of modulation and demodulation reference signal ports is between port number A and port number B (excluding port number B), it corresponds to one repetition factor. For the antenna port indication information where the number of modulation and demodulation reference signal ports is between port number B (including port number B) and port number C, it corresponds to another repetition factor. Among them, A <B<C。

[0394] Exemplarily, the number of modem reference signal ports may be negatively correlated with the repetition factor. For example, if the number of modem reference signal ports is 1, the corresponding repetition factor may be "4", and if the number of modem reference signal ports is 3, the corresponding repetition factor may be "1".

[0395] The range of the number of modulation and demodulation reference signal ports can also be determined based on one or more port number thresholds. The number of port number thresholds and the number of repetition factors satisfy the following relationship: N3 = M3 - 1, where M3 is the number of repetition factors and N3 is the number of port number thresholds.

[0396] It can be understood that the port number threshold can be configured through RRC signaling or defined by a protocol.

[0397] The following describes the corresponding relationship between the modulation and demodulation reference signal port number interval and the repetition factor in conjunction with Table 13.

[0398] As shown in Table 13, the port indication information is 0-11, and the mapping relationship between the antenna port indication information and the antenna port, the number of antenna ports and the repetition factor is shown in Table 15 below.

[0399] Table 15

[0400]

[0401] In the embodiment of this application, Figure 4 The communication method shown may further include: the network device sending field indication information, and the terminal device receiving the field indication information.

[0402] The field indication information may be used to indicate the repetition factor implicitly indicated by one or more of the following: an MCS index, a modulation order corresponding to the MCS index, or the number of DMRS ports.

[0403] For example, if the uplink coverage condition is associated with the downlink coverage condition, the field indication information is used to indicate: the repetition factor is indicated by the MCS index. The uplink coverage condition is associated with the downlink coverage condition, which can be one of the following conditions: unpaired spectrum, time division multiplexing, or uplink and downlink are at the same frequency (such as 4.9 GHz).

[0404] The explicit indication of the repetition factor is described below in combination with the carrier indication information, the antenna port indication information and the priority indication information.

[0405] Exemplarily, some bits or status values in the carrier indication information can be used to indicate the repetition factor. For example, for DCI format 1_1, the field corresponding to the carrier indication information is 0 bits or 3 bits. If the terminal device is configured with carrier indication information by the serving cell, the field corresponding to the carrier indication information is 3 bits, and the repetition factor can be displayed by the carrier indication information. At this time, the repetition factor can be indicated by 1 bit or 2 bits in the carrier indication information. Specifically, the most significant bit or the least significant bit of the 3 bits can be used to indicate the repetition factor, or the multiplexing status value can be used, such as "111", "110" and "101".

[0406] Similarly, for DCI format 1_2, the carrier indication information configured by the serving cell for the terminal device can be 0 bits, 1 bit, 2 bits, or 3 bits. When indicating the repetition factor through the carrier indication information in DCI format 1_2, the repetition factor can also be indicated by the most significant bit or the least significant bit, or a multiplexed state value such as "111", "110" and "101". For example, to indicate two repetition factors, the most significant bit can be used, or the state values "111" and "110" can be used to indicate the repetition factor.

[0407] For example, the repetition factor can be indicated by some bits of the antenna port indication information, such as bits within the 4-bit, 5-bit, or 6-bit carrier indication information in DCI format 1_1. Another example is bits within the 4-bit, 5-bit, or 6-bit carrier indication information in DCI format 1_2. The implementation of indicating the repetition factor through antenna port indication information is similar to that of the carrier indication information and is not further described here.

[0408] In embodiments of the present application, the repetition factor can be indicated by the status value of the antenna port indication information indicating the larger number of ports. The repetition factor can also be indicated by the most significant bit or the least significant bit in the antenna port indication information. The repetition factor can also be indicated by a bit in the newly added antenna port indication information. For example, if the configured antenna port table is indicated by 4 bits, the antenna port indication information can be configured as 5 bits, thereby using 1 bit to indicate the repetition factor, or using a partial status value consisting of 5 bits to indicate the repetition factor.

[0409] For example, at this time, the priority of the PUCCH carrying feedback information is low. Therefore, the bit of the priority indication information, such as the 1-bit priority indication information configured in DCI format 1_1 or DCI format 1_2, can be used to indicate the repetition factor.

[0410] Regarding the solution for determining coverage limitation, you can refer to the above implementation method for determining coverage limitation, which will not be repeated here.

[0411] It should be noted that, in the embodiment of the present application, RRC signaling can also be used to indicate: certain bits or status values of certain fields in the downlink control information are used to indicate the repetition factor. Specifically, the base station can determine which fields to use based on coverage conditions and then indicate it through RRC information.

[0412] In one possible design, Figure 4 The communication method shown may further include: the terminal device determines a target repetition factor in a target repetition factor set according to fifth indication information.

[0413] In one possible design, Figure 4 The communication method shown may further include: the network device sends sixth indication information. Correspondingly, the terminal device receives the sixth indication information.

[0414] The sixth indication information is used to indicate a target repetition factor set, which is one of multiple candidate repetition factor sets.

[0415] Regarding the implementation method of the sixth indication information, the implementation method of the first indication information mentioned above can be referred to, and will not be repeated here.

[0416] Optionally, Figure 4 The communication method shown may further include: the network device sending seventh indication information. Correspondingly, the terminal device receiving the seventh indication information. The seventh indication information is used to indicate multiple candidate repetition factor sets.

[0417] Regarding the implementation method of the seventh indication information, you can refer to the implementation method of the second indication information mentioned above, which will not be repeated here.

[0418] Optionally, the candidate repetition factor set is related to the format of the uplink control resource set or the uplink channel.

[0419] based on Figure 4 The communication method shown can indicate a target repetition factor based on downlink control information or a media access control (MAC) control cell. This allows different repetition factors to be indicated based on the downlink control information or the MAC control cell, providing greater flexibility and improving communication efficiency. Furthermore, using existing fields to indicate the repetition factor avoids additional resource overhead, thereby improving communication efficiency. Furthermore, indicating the target repetition factor based on the downlink control information or the MAC control cell enables implicit indication of the repetition factor. For example, the repetition factor can be determined based on the MCS index, enabling indication of the repetition factor under different coverage conditions. This increases the flexibility of repetition factor indication and, in turn, improves communication efficiency.

[0420] In summary, Figure 4 The communication method shown can improve flexibility and thus improve communication efficiency.

[0421] Figure 5 This is a flow diagram of the communication method provided in the embodiment of the present application. Figure 4 This communication method can be applied to Figure 1 Communication between terminal devices and network devices is shown.

[0422] Figure 5 The communication methods shown include:

[0423] S501: A network device determines a target uplink control resource and a target repetition factor, wherein the target repetition factor is used to receive an uplink signal on the target uplink control resource.

[0424] S502: The network device sends downlink control information, and the terminal device receives the downlink control information.

[0425] The downlink control information is scrambled by the second RNTI.

[0426] S501, the terminal device obtains a target repetition factor corresponding to the second RNTI.

[0427] The RNTI used to scramble the downlink control information corresponds to different repetition factors. The target repetition factor is used to send uplink signals on the target uplink control resource.

[0428] In one possible design, Figure 5 The method described in the communication method shown may further include: the network device sends eighth indication information, and the terminal device determines the target repetition factor in the target repetition factor set according to the eighth indication information.

[0429] In one possible design, Figure 5 The communication method shown may further include: the network device sends ninth indication information, and the terminal device receives the ninth indication information.

[0430] The ninth indication information is used to indicate a target repetition factor set, which is one of multiple candidate repetition factor sets.

[0431] Regarding the implementation of the eighth and ninth indication information, reference can be made to the implementation of the first indication information, which will not be described in detail here. Figure 5 The communication method shown can indicate the repetition factor using different RNTIs, eliminating the need for new fields and avoiding additional resource overhead. Assigning different RNTIs to different repetition factors allows for flexible repetition factor indication, thereby improving communication efficiency. Furthermore, the repetition factor can be indicated under different coverage conditions, making repetition factor indication more flexible.

[0432] In summary, Figure 5 The communication method shown can balance resource consumption and flexibility.

[0433] Combination of the above Figure 3-Figure 5 The communication method provided by the embodiment of the present application is described in detail. Figure 6-Figure 8 A communication device for executing the communication method provided in an embodiment of the present application is described in detail.

[0434] For example, Figure 6 This is a schematic diagram of the structure of the communication device provided in the embodiment of the present application. Figure 1 .like Figure 6 As shown, the communication device 600 includes: an acquisition module 601 and a determination module 602. For ease of description, Figure 6 Only the main components of the communication device are shown.

[0435] In some embodiments, the communication device 600 may be adapted to Figure 1 In the communication system shown in FIG, execution Figure 2 The function of the terminal device in the communication method shown in, or, performing Figure 3 The function of the terminal device in the communication method shown in, or, performing Figure 4 The function of the terminal device in the communication method shown in, or, performing Figure 5 The functions of the terminal device in the communication method shown in FIG.

[0436] The acquisition module 601 is configured to acquire a first index.

[0437] The determination module 602 is configured to determine, according to a first mapping relationship, a target uplink control resource and a target repetition factor corresponding to a first index.

[0438] In the first mapping relationship, one index corresponds to one repetition factor and one uplink control resource; the target repetition factor is used to send an uplink signal on the target uplink control resource.

[0439] In one possible design, an acquisition module 601 is configured to acquire configuration information. The configuration information includes: the number of uplink control resources, the repetition factor corresponding to the first mapping relationship, first uplink resource index indication information, the total number of control channel elements (CCEs) in a downlink control resource set (CORESET), and a first resource index. A determination module 602 is configured to determine the first index based on the configuration information.

[0440] Optionally, the first uplink resource index indication information is uplink control resource indication information.

[0441] Optionally, the first resource index is the index of the first CCE occupied by the physical downlink control channel.

[0442] In one possible design scheme, the first index is related to the ratio of the first resource index of the total number of CCEs in the downlink control resource set, and the first uplink resource index indication information.

[0443] In a possible design solution, the first index satisfies the following relationship:

[0444]

[0445] Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0446] In one design solution, the first index satisfies one of the following relationships:

[0447] or,

[0448] Among them, r re，rep is the first index, N CCE，p is the total number of CCEs in the downlink control resource set, n CCE，p is the first resource index, 0≤n CCE，p / N CCE，p <1, R PUCCH is the number of uplink control resources, R re，rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

[0449] In one possible design, the acquisition module 601 is further configured to acquire first indication information; wherein the first indication information is used to indicate a first repetition factor set, which is one of a plurality of repetition factor sets;

[0450] A first mapping relationship is determined according to the first repetition factor set and the uplink control resource set.

[0451] Furthermore, the acquisition module 601 is further configured to receive second indication information; wherein the second indication information is used to indicate multiple repetition factor sets.

[0452] Optionally, the acquisition module 601 may include a receiving module and a sending module. The sending and receiving modules are used to implement the sending and receiving functions of the communication device described in the fifth aspect. The sending and receiving modules may also be integrated into a single module, such as a sending and receiving module. The acquisition module 601 may also be a module with data processing functions. The acquisition module 601 and the determination module 602 may be integrated into a single module, such as a processing module.

[0453] Optionally, the communication device 600 may further include a storage module ( Figure 6 (not shown), the storage module stores a program or instruction. When the processing module executes the program or instruction, the communication device 600 can execute Figure 2-Figure 5 The function of the terminal device in any of the communication methods shown.

[0454] It should be understood that the processing module involved in the communication device 600 can be implemented by a processor or a processor-related circuit component, which can be a processor or a processing unit; the transceiver module can be implemented by a transceiver or a transceiver-related circuit component, which can be a transceiver or a transceiver unit.

[0455] It should be noted that the communication device 600 can be a terminal device, a chip (system) or other parts or components that can be set in the terminal device, or a device that includes a terminal device. This application does not limit this.

[0456] In addition, the technical effects of the communication device 600 can be referred to Figure 2-Figure 5 The technical effects of the communication method shown in any one of the items will not be repeated here.

[0457] For example, Figure 7 This is a schematic diagram of the structure of the communication device provided in the embodiment of the present application. Figure 2 .like Figure 7 As shown, the communication device 700 includes: a processing module 701 and a transceiver module 702. For ease of description, Figure 7 Only the main components of the communication device are shown.

[0458] The communication device 700 may be suitable for Figure 1 In the communication system shown in FIG, execution Figure 2 The function of the network device in the communication method shown in, or, performing Figure 3 The function of the network device in the communication method shown in, or, performing Figure 4 The function of the network device in the communication method shown in, or, performing Figure 5 The functions of the network devices in the communication method shown in .

[0459] The processing module 701 is configured to determine a target uplink control resource and a target repetition factor, wherein the target repetition factor is used to receive an uplink signal on the target uplink control resource.

[0460] The transceiver module 702 is configured to send first information, wherein the first information includes: the number of uplink control resources, the repetition factor, the first uplink resource index indication information, the total number of control channel elements (CCEs) in the downlink control resource set (CORESET), and the first resource index.

[0461] In a possible design scheme, the first uplink resource index indication information is uplink control resource indication information.

[0462] In a possible design scheme, the first resource index is the index of the first CCE occupied by the physical downlink control channel.

[0463] In one possible design, the target repetition factor is determined based on a first repetition factor set. The transceiver module is further configured to send first indication information, wherein the first indication information is configured to indicate a first repetition factor set, which is one of a plurality of repetition factor sets.

[0464] Optionally, the transceiver module 702 is further configured to send second indication information, wherein the second indication information is used to indicate multiple repetition factor sets.

[0465] Optionally, the transceiver module 702 may include a receiving module and a sending module. Figure 7 The communication device has a sending function and a receiving function.

[0466] Optionally, Figure 7 The communication device shown may further include a storage module, which stores a program or instruction. When the processing module executes the program or instruction, the communication device can execute Figure 2-Figure 5 The communication method described in .

[0467] It should be understood that the processing module 701 involved in the communication device 700 can be implemented by a processor or a processor-related circuit component, which can be a processor or a processing unit; the transceiver module 702 can be implemented by a transceiver or a transceiver-related circuit component, which can be a transceiver or a transceiver unit.

[0468] It should be noted that the communication device 700 may be Figure 1 The network device shown in the figure may also be a chip (system) or other parts or components provided in the above-mentioned network device, or a device including the network device, which is not limited in the embodiments of the present application.

[0469] In addition, the technical effects of the communication device 700 can be referred to Figure 2-Figure 5 The technical effects of the communication method shown in any one of the items will not be repeated here.

[0470] For example, Figure 8 Schematic diagram of the structure of the communication device provided in the embodiment of the present application Figure 3 The communication device may be a terminal device or a network device, or may be a chip (system) or other component or assembly that can be provided in the terminal device or the network device. Figure 8 As shown, the communication device 800 may include a processor 801. Optionally, the communication device 800 may further include a memory 802 and / or a transceiver 803. The processor 801 is coupled to the memory 802 and the transceiver 803, for example, via a communication bus.

[0471] The following combination Figure 8 The components of the communication device 800 are described in detail.

[0472] The processor 801 is the control center of the communication device 800 and can be a single processor or a collective term for multiple processing elements. For example, the processor 801 can be one or more central processing units (CPUs), an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present application, such as one or more digital signal processors (DSPs) or one or more field programmable gate arrays (FPGAs).

[0473] Optionally, the processor 801 may execute various functions of the communication device 800 by running or executing a software program stored in the memory 802 and calling data stored in the memory 802 .

[0474] In a specific implementation, as an embodiment, the processor 801 may include one or more CPUs, such as Figure 8 CPU0 and CPU1 are shown in FIG.

[0475] In a specific implementation, as an embodiment, the communication device 800 may also include multiple processors, such as Figure 2 1 and 804 are shown in FIG. Each of these processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor herein can refer to one or more devices, circuits, and / or processing cores for processing data (e.g., computer program instructions).

[0476] The memory 802 is used to store the software program for executing the solution of the present application, and the execution is controlled by the processor 801. The specific implementation method can refer to the above method embodiment and will not be repeated here.

[0477] Alternatively, the memory 802 may be a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (RAM) or other type of dynamic storage device that can store information and instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and can be accessed by a computer, but is not limited thereto. The memory 802 may be integrated with the processor 801 or exist independently and accessed through the interface circuit ( Figure 8 (not shown) is coupled to the processor 801, which is not specifically limited in this embodiment of the present application.

[0478] Transceiver 803 is used for communication with other communication devices. For example, if communication device 800 is a terminal device, transceiver 803 can be used to communicate with a network device or another terminal device. For another example, if communication device 800 is a network device, transceiver 803 can be used to communicate with a terminal device or another network device.

[0479] Optionally, the transceiver 803 may include a receiver and a transmitter ( Figure 8 (not shown separately in the figure). The receiver is used to implement a receiving function, and the transmitter is used to implement a sending function.

[0480] Optionally, the transceiver 803 may be integrated with the processor 801 or may exist independently and communicate with the processor 801 through the interface circuit ( Figure 8 (not shown) is coupled to the processor 801, which is not specifically limited in this embodiment of the present application.

[0481] It should be noted that Figure 8 The structure of the communication device 800 shown in the figure does not constitute a limitation on the communication device. The actual communication device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently.

[0482] In addition, the technical effects of the communication device 800 can refer to the technical effects of the communication method described in the above method embodiment, and will not be repeated here.

[0483] An embodiment of the present application provides a communication system, which includes one or more terminal devices described above and one or more network devices.

[0484] It can be understood that the network device implementing the above-mentioned embodiment in the present application can be implemented by one or more functional units (or functional modules), and these one or more functional units (or functional modules) can be located in the same device or in different devices.

[0485] It should be understood that the processor in the embodiments of the present application may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.

[0486] It should also be understood that the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic random access memory (DRAM), synchronous DRAM (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link DRAM (SLDRAM), and direct rambus RAM (DR RAM).

[0487] The above embodiments can be implemented in whole or in part by software, hardware (such as circuits), firmware or any other combination. When implemented using software, the above embodiments can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer program are loaded or executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (such as infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or data center that contains one or more available media sets. The available medium can be a magnetic medium (for example, a floppy disk, a hard disk, a tape), an optical medium (for example, a DVD), or a semiconductor medium. The semiconductor medium can be a solid-state drive.

[0488] It should be understood that the term "and / or" as used herein simply describes an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. A and B can be singular or plural. Furthermore, the character " / " as used herein generally indicates an "or" relationship between the related objects, but it may also indicate an "and / or" relationship. For specific understanding, please refer to the context.

[0489] In this application, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, at least one of a, b, or c can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0490] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean 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 the present application.

[0491] Those skilled in the art will appreciate that the units and algorithm steps of each example 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 performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel 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.

[0492] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0493] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0494] The units described as separate components may or may not be physically separate, and 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 these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0495] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0496] If the functions are implemented in the form of 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 the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0497] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: Applied to a terminal device, the method includes: Get the first index; Obtaining first indication information; wherein the first indication information is used to indicate a first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets; Determine a first mapping relationship according to the first repetition factor set and the uplink control resource set; Determine, according to the first mapping relationship: a target uplink control resource and a target repetition factor corresponding to the first index; In the first mapping relationship, one index corresponds to one repetition factor and one uplink control resource; and the target repetition factor is used to send an uplink signal on the target uplink control resource.

2. The method according to claim 1, characterized in that The obtaining of the first index includes: Obtain configuration information; wherein the configuration information includes: the number of uplink control resources, the number of repetition factors corresponding to the first mapping relationship, the first uplink resource index indication information, the total number of control channel elements CCE in the downlink control resource set CORESET, and the first resource index; The first index is determined according to the configuration information.

3. The method according to claim 2, characterized in that The first uplink resource index indication information is uplink control resource indication information.

4. The method according to claim 2 or 3, characterized in that The first resource index is the index of the first CCE occupied by the physical downlink control channel.

5. The method according to claim 2 or 3, characterized in that The first index is related to a ratio of the first resource index to the total number of CCEs in the downlink control resource set, and the first uplink resource index indication information.

6. The method according to claim 2 or 3, characterized in that The first index satisfies the following relationship: Among them, r re,rep is the first index, N CCE,p is the total number of CCEs in the downlink control resource set, n CCE,p is the first resource index, 0≤n CCE,p / N CCE,p <1, R re,rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

7. The method according to claim 2 or 3, characterized in that The first index satisfies one of the following relationships: or, Among them, r re,rep is the first index, N CCE,p is the total number of CCEs in the downlink control resource set, n CCE,p is the first resource index, 0≤n CCE,p / N CCE,p <1, R PUCCH is the number of uplink control resources, R re,rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

8. The method according to any one of claims 1 to 3, characterized in that The method further comprises: Receive second indication information; wherein the second indication information is used to indicate the multiple repetition factor sets.

9. A communication method, characterized in that: Applied to a network device, the method includes: Determining a target uplink control resource and a target repetition factor; wherein the target repetition factor is used to receive an uplink signal on the target uplink control resource; the target repetition factor is determined according to a first repetition factor set; Sending first indication information; wherein the first indication information is used to indicate the first repetition factor set, and the first repetition factor set is one of multiple repetition factor sets; Send first information; wherein the first information includes: the number of uplink control resources, the repetition factor number, the first uplink resource index indication information, the total number of control channel elements CCE in the downlink control resource set CORESET, and the first resource index.

10. The method according to claim 9, characterized in that The first uplink resource index indication information is uplink control resource indication information.

11. The method according to claim 9 or 10, characterized in that The first resource index is the index of the first CCE occupied by the physical downlink control channel.

12. The method according to claim 9 or 10, characterized in that The method further comprises: Sending second indication information; wherein the second indication information is used to indicate the multiple repetition factor sets.

13. A communication device, characterized in that: The device includes: an acquisition module and a determination module; An acquisition module, configured to acquire a first index; The acquisition module is further configured to acquire first indication information; wherein the first indication information is used to indicate a first repetition factor set, and the first repetition factor set is one of a plurality of repetition factor sets; Determine a first mapping relationship according to the first repetition factor set and the uplink control resource set; a determining module, configured to determine, according to the first mapping relationship: a target uplink control resource and a target repetition factor corresponding to the first index; In the first mapping relationship, one index corresponds to one repetition factor and one uplink control resource; and the target repetition factor is used to send an uplink signal on the target uplink control resource.

14. The device according to claim 13, characterized in that The acquisition module is configured to acquire configuration information; wherein the configuration information includes: the number of uplink control resources, the number of repetition factors corresponding to the first mapping relationship, first uplink resource index indication information, the total number of control channel elements (CCEs) in the downlink control resource set (CORESET), and the first resource index; The determining module is configured to determine the first index according to the configuration information.

15. The device according to claim 14, characterized in that The first uplink resource index indication information is uplink control resource indication information.

16. The device according to claim 14 or 15, characterized in that The first resource index is the index of the first CCE occupied by the physical downlink control channel.

17. The device according to claim 14 or 15, characterized in that The first index is related to a ratio of the first resource index to the total number of CCEs in the downlink control resource set, and the first uplink resource index indication information.

18. The device according to claim 14 or 15, characterized in that The first index satisfies the following relationship: Among them, r re,rep is the first index, n CCE,p is the total number of CCEs in the downlink control resource set, n CCE,p is the first resource index, 0≤n CCE,p / N CCE,p <1, R re,rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

19. The device according to claim 14 or 15, characterized in that The first index satisfies one of the following relationships: or, Among them, r re,rep is the first index, N CCE,p is the total number of CCEs in the downlink control resource set, n CCE,p is the first resource index, 0≤n CCE,p / N CCE,p <1, R PUCCH is the number of uplink control resources, R re,rep is the product of the repetition factor and the number of uplink control resources, Δ PRI is the value of the first uplink resource index indication information.

20. The device according to any one of claims 13 to 15, characterized in that The acquisition module is further configured to receive second indication information; wherein the second indication information is configured to indicate the multiple repetition factor sets.

21. A communication device, characterized in that: The device includes: a processing module and a transceiver module; The processing module is configured to determine a target uplink control resource and a target repetition factor; wherein the target repetition factor is used to receive an uplink signal on the target uplink control resource; and the target repetition factor is determined according to a first repetition factor set; The transceiver module is configured to send first indication information; wherein the first indication information is used to indicate the first repetition factor set, and the first repetition factor set is one of multiple repetition factor sets; The transceiver module is also used to send first information; wherein, the first information includes: the number of uplink control resources, the repetition factor number, the first uplink resource index indication information, the total number of control channel elements CCE in the downlink control resource set CORESET, and the first resource index.

22. The device according to claim 21, characterized in that The first uplink resource index indication information is uplink control resource indication information.

23. The device according to claim 21 or 22, characterized in that The first resource index is the index of the first CCE occupied by the physical downlink control channel.

24. The device according to claim 21 or 22, characterized in that The transceiver module is further configured to send second indication information; wherein the second indication information is configured to indicate the multiple repetition factor sets.

25. A communication device, characterized in that: The communication device includes: a processor; wherein, The processor is configured to execute the communication method according to any one of claims 1 to 12.

26. A communication device, characterized in that: include: a processor coupled to the memory; The processor is configured to execute the computer program stored in the memory, so that the communication device executes the communication method according to any one of claims 1 to 12.

27. A communication device, characterized in that: include: processor; The processor is configured to be coupled to a memory and, after reading instructions from the memory, execute the communication method according to any one of claims 1 to 12 according to the instructions.

28. A communication device, characterized in that: include: processor and memory; The memory is used to store computer instructions, and when the processor executes the instructions, the communication device executes the communication method according to any one of claims 1 to 12.

29. A communication device, characterized in that: include: processor and interface circuit; wherein, The interface circuit is used to receive code instructions and transmit them to the processor; The processor is configured to execute the code instructions to perform the method according to any one of claims 1 to 12.

30. A communication device, characterized in that: The communication device includes a processor and a transceiver, the transceiver is used to exchange information between the communication device and other communication devices, and the processor executes program instructions to perform the communication method according to any one of claims 1 to 12.

31. A processor, characterized in that: include: The processor is configured to execute the communication method according to any one of claims 1 to 12.

32. A computer-readable storage medium, characterized in that The computer-readable storage medium includes a computer program or instructions. When the computer program or instructions are executed on a computer, the computer is caused to execute the communication method according to any one of claims 1 to 12.

33. A computer program product, characterized in that The computer program product comprises: a computer program or instructions, and when the computer program or instructions are run on a computer, the computer is caused to perform the communication method according to any one of claims 1 to 12.

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