WO2021217374A1 - 链路自适应参数指示以及链路自适应参数确定方法和装置 - Google Patents

链路自适应参数指示以及链路自适应参数确定方法和装置 Download PDF

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Publication number
WO2021217374A1
WO2021217374A1 PCT/CN2020/087330 CN2020087330W WO2021217374A1 WO 2021217374 A1 WO2021217374 A1 WO 2021217374A1 CN 2020087330 W CN2020087330 W CN 2020087330W WO 2021217374 A1 WO2021217374 A1 WO 2021217374A1
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WIPO (PCT)
Prior art keywords
link adaptation
adaptation parameter
subset
indication information
modulation
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PCT/CN2020/087330
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English (en)
French (fr)
Inventor
牟勤
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北京小米移动软件有限公司
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Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN202311229552.5A priority Critical patent/CN117294391A/zh
Priority to US17/997,211 priority patent/US20230198661A1/en
Priority to PCT/CN2020/087330 priority patent/WO2021217374A1/zh
Priority to CN202080000802.6A priority patent/CN114270738B/zh
Publication of WO2021217374A1 publication Critical patent/WO2021217374A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0033—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the transmitter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
    • H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0015—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the adaptation strategy
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

Definitions

  • the present disclosure relates to the field of communication technology, and in particular, to a link adaptive parameter indicating method, a link adaptive parameter determining method, a link adaptive parameter indicating device, a link adaptive parameter determining device, electronic equipment, and computer readable Storage medium.
  • link adaptation parameters such as the modulation and coding strategy, the number of repeated transmissions of downlink data, etc., can be sent to the base station.
  • the terminal needs an appropriate Modulation and Coding Scheme (MCS for short) for data transmission, and the modulation and coding strategy is indicated by the base station to the terminal based on the modulation and coding strategy table.
  • the modulation and coding strategy table contains multiple modulation and coding strategies, as well as the index corresponding to each modulation and coding strategy, that is, the MCS index.
  • the base station can use several bits in the downlink control information (Downlink Control Information, referred to as DCI). Indicate the index of the modulation and coding strategy, and further indicate the modulation and coding strategy corresponding to the index.
  • DCI Downlink Control Information
  • the modulation and coding strategy table includes 32 modulation and coding strategies, then the base station needs to indicate the modulation and coding strategy through 5 bits in the downlink control information. Caused more occupation.
  • the base station can repeatedly send downlink information to the terminal.
  • the terminal will be configured with multiple candidate repeated transmission times.
  • the base station needs to pass several bits in the downlink control information. Indicate to the terminal a number of repeated transmissions in the set of repeated transmissions. This also causes more occupation of downlink control information.
  • the embodiments of the present disclosure propose a link adaptation parameter indication method, a link adaptation parameter determination method, a link adaptation parameter indication device, a link adaptation parameter determination device, electronic equipment, and computer-readable storage Media to solve technical problems in related technologies.
  • a method for indicating link adaptation parameters which includes:
  • the indication information used to indicate the target link adaptation parameter is sent to the terminal, where the target link adaptation parameter is a link adaptation parameter in the link adaptation parameter subset.
  • a method for determining link adaptation parameters which includes:
  • a link adaptation parameter indicating device including:
  • a subset determining module configured to determine a link adaptation parameter subset from a link adaptation parameter set, the link adaptation parameter subset including at least one link adaptation parameter;
  • An indication sending module configured to send indication information for indicating the target link adaptation parameter to the terminal, wherein the target link adaptation parameter is a link in the link adaptation parameter subset Adaptive parameters.
  • a device for determining a link adaptive parameter including:
  • An indication receiving module configured to receive indication information sent by the base station for indicating link adaptation parameters
  • the subset determining module is configured to determine that the received indication information corresponds to the link adaptation parameter subset in the link adaptation parameter set according to the association relationship between the prestored indication information and the link adaptation parameter subset in the link adaptation parameter set The target link adaptation parameters.
  • an electronic device including:
  • a memory for storing processor executable instructions
  • the processor is configured to implement the link adaptation parameter indication method described in any of the foregoing embodiments.
  • an electronic device including:
  • a memory for storing processor executable instructions
  • the processor is configured to implement the link adaptation parameter determination method described in any of the foregoing embodiments.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the link adaptation parameter indication method described in any of the above embodiments is implemented A step of.
  • a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the method for determining the link adaptive parameter described in any of the above embodiments is implemented A step of.
  • the base station since the base station does not need to determine the target link adaptation parameter that needs to be indicated to the terminal in the link adaptation parameter set, it can determine the link adaptation parameter subset from the link adaptation parameter set. , And then select the target link adaptation parameter in the link adaptation parameter subset and indicate it to the terminal.
  • the target link adaptation parameters are determined in the link adaptation parameter subset
  • the generated indication information is compared with the indication information generated by determining the target link adaptation parameter in the link adaptation parameter set, the number of bits required for the indication information is reduced, which saves communication resources.
  • Fig. 1 is a schematic flowchart of a method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 2 is a schematic flowchart of another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 3 is a schematic flowchart of yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 4 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 5 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 6 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 7 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 8 is a schematic flowchart of determining indication information according to an embodiment of the present disclosure.
  • Fig. 9 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 10 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 11 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 12 is a schematic flowchart showing a method for determining link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 13 is a schematic flowchart of another method for determining link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 14 is a schematic flowchart showing yet another method for determining link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 15 is a schematic flowchart showing yet another method for determining link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 16 is a schematic block diagram showing a device for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • Fig. 17 is a schematic block diagram showing another link adaptation parameter indicating device according to an embodiment of the present disclosure.
  • Fig. 18 is a schematic block diagram showing yet another link adaptation parameter indicating device according to an embodiment of the present disclosure.
  • Fig. 19 is a schematic block diagram showing still another link adaptation parameter indicating device according to an embodiment of the present disclosure.
  • Fig. 20 is a schematic block diagram showing a device for determining a link adaptive parameter according to an embodiment of the present disclosure.
  • Fig. 21 is a schematic block diagram showing a subset determining module according to an embodiment of the present disclosure.
  • Fig. 22 is a schematic block diagram showing a device for link adaptation parameter determination according to an embodiment of the present disclosure.
  • Fig. 23 is a schematic block diagram showing a device for link adaptation parameter indication according to an embodiment of the present disclosure.
  • Fig. 1 is a schematic flowchart of a method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • the link adaptation parameter indication method shown in this embodiment can be applied to base stations, such as 5G NR base stations, 4G LTE base stations, etc.
  • the base station can communicate with terminals as user equipment, including but not limited to mobile phones, Tablet computers, wearable devices, personal computers, smart homes, industrial sensors, etc., the type of terminal can be an NR-lite terminal.
  • the link adaptation parameter indication method may include the following steps:
  • a link adaptation parameter subset is determined from a link adaptation parameter set, and the link adaptation parameter subset includes at least one link adaptation parameter;
  • step S102 indication information for indicating the target link adaptation parameter is sent to the terminal, where the target link adaptation parameter is the link adaptation parameter in the link adaptation parameter subset parameter.
  • the base station may not need to determine the target link adaptation parameters that need to be indicated to the terminal in the link adaptation parameter set, but may first determine the link adaptation parameter subset from the link adaptation parameter set. For example, according to the terminal channel state information, at least one link adaptation parameter suitable for the channel state information may be determined in the link adaptation parameter set as the link adaptation parameter subset, and the link adaptation parameter The subset may be a proper subset of the link adaptation parameter set, that is, the number of link adaptation parameters in the link adaptation parameter subset is less than the number of link adaptation parameters in the link adaptation parameter set.
  • the base station may select the target link adaptation parameter in the subset of the link adaptation parameter and indicate it to the terminal.
  • the link adaptation parameter subset may be configured by the base station for the terminal, or determined according to the protocol, or determined by the base station and the terminal separately based on the same determination method, or the terminal may be determined by the base station. One or more parameters sent are determined.
  • the operation of the base station indicating the target link adaptation parameters to the terminal may occur multiple times, that is, the foregoing step S102 may occur multiple times.
  • determining the subset of link adaptation parameters from the set of link adaptation parameters, that is, step S101, can be performed only once before the base station indicates multiple operations of the target link adaptation parameters to the terminal, so that the base station can determine At least one link adaptation parameter is used as a subset of link adaptation parameters.
  • the base station since the base station does not need to determine the target link adaptation parameter that needs to be indicated to the terminal in the link adaptation parameter set, it can determine the link adaptation parameter subset from the link adaptation parameter set. , And then select the target link adaptation parameter in the link adaptation parameter subset and indicate it to the terminal.
  • the target link adaptation parameter generation is determined in the link adaptation parameter subset Compared with the indication information generated by determining the target link adaptation parameter in the link adaptation parameter, the number of bits required for the indication information is reduced, which saves communication resources.
  • the modulation and coding strategy table includes 32 modulation and coding strategies, that is, the number of modulation and coding strategy sets is 32, and the base station needs 5-bit indication information to indicate the modulation and coding strategy.
  • the link adaptation parameter subset is only part of the above 32 modulation and coding strategies.
  • the link adaptation parameter subset includes 4 modulation and coding strategies, then the base station only needs 2
  • the bit indication information can be used to indicate the modulation and coding strategy, thereby reducing the number of occupied bits.
  • Fig. 2 is a schematic flowchart of another method for indicating link adaptation parameters according to an embodiment of the present disclosure. As shown in Figure 2, the method further includes:
  • step S103 the link adaptation parameter subset is sent to the terminal.
  • the base station may send the determined link adaptation parameters to the terminal by itself, so that the terminal may first determine the range within which the target chain corresponding to the indication information needs to be determined after receiving the indication information sent by the base station.
  • Road adaptive parameters may be used to determine the range within which the target chain corresponding to the indication information needs to be determined after receiving the indication information sent by the base station.
  • the link adaptation parameter subset may also be pre-stored by the terminal. This disclosure does not limit this, and can be set as required.
  • Fig. 3 is a schematic flowchart of yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • the link adaptation parameters include a modulation and coding strategy
  • the determining a subset of link adaptation parameters from a set of link adaptation parameters includes:
  • a modulation and coding strategy subset is determined from a modulation and coding strategy set, and the modulation and coding strategy subset includes a modulation and coding strategy subset.
  • the link adaptation parameters may include modulation and coding strategies
  • the link adaptation parameter set is the modulation and coding strategy set, for example, it may be the above 32 modulation and coding strategies
  • the link is determined from the link adaptation parameter set.
  • the path adaptation parameter subset can be a modulation and coding strategy subset that is determined in the modulation and coding strategy set, and the specific number of modulation and coding strategies in the modulation and coding strategy subset can be determined according to actual conditions.
  • Fig. 4 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • the sending indication information for indicating the target link adaptation parameter to the terminal includes:
  • step S1021 according to the first association relationship between the indication information and the modulation and coding strategy, the indication information for identifying the corresponding modulation and coding strategy is determined, and the indication information is sent to the terminal.
  • the first association relationship between the indication information and the modulation and coding strategy may be configured by the base station for the terminal, or determined according to the protocol, or determined by the base station and the terminal separately based on the same determination method, or It is determined by the terminal through one or more parameters sent by the base station.
  • the base station may pre-store the indication information and the first association relationship between the modulation and coding strategy (that is, the above-mentioned modulation and coding strategy subset).
  • the modulation and coding strategy subset includes 4 modulation and coding strategies, which are MCS1 ( The modulation and coding strategy corresponding to index 1), MCS2 (the modulation and coding strategy corresponding to index 2), MCS3 (the modulation and coding strategy corresponding to index 3) and MCS6 (the modulation and coding strategy corresponding to index 6), then the indication information can be 2 bits, They are 00, 01, 10, and 11 respectively, and the first association relationship may be that MCS1 corresponds to 00, MCS2 corresponds to 01, MCS3 corresponds to 10, and MCS6 corresponds to 11.
  • the base station can determine the indication information corresponding to the target modulation and coding strategy according to the first association relationship.
  • the target modulation and coding strategy is MCS2. Then, according to the above first association relationship, it can be determined that the indication information corresponding to MCS2 is 01, so that two bits can be generated.
  • the instruction information 01 is sent to the terminal.
  • the terminal may also pre-store or receive the above-mentioned first association relationship from the base station, and after receiving the indication information 01, the terminal may determine the target modulation and coding strategy indicated by the indication information 01 according to the above-mentioned first association relationship. For MCS2.
  • Fig. 5 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • the link adaptation parameters include the number of repeated transmissions of downlink information
  • the determining a subset of the link adaptation parameters from the link adaptation parameter set includes:
  • step S1012 a subset of the number of repeated transmissions is determined in the set of the number of repeated transmissions, and the subset of the number of repeated transmissions includes at least one number of repeated transmissions.
  • the link adaptation parameter may include the number of repeated transmissions of downlink information, then the link adaptation parameter set is the set of repeated transmissions.
  • the set of repeated transmissions can be set to include 4 types of repeated transmissions, which are R1. , R2, R3, and R4 (the specific times represented by R1 to R4 can be set according to needs), the link adaptation parameter subset can be determined from the set of link adaptation parameters to determine the number of repeated transmissions in the set of repeated transmissions Subset, the number of repeated transmissions The specific number of repeated transmissions in the subset can be determined according to actual conditions.
  • Fig. 6 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure. As shown in FIG. 6, the determining a subset of link adaptation parameters from a set of link adaptation parameters includes:
  • step S1022 according to the second association relationship between the instruction information and the number of repeated transmissions, the instruction information for identifying the corresponding number of repeated transmissions is determined, and the instruction information is sent to the terminal.
  • the second association relationship between the indication information and the number of repeated transmissions may be configured by the base station to the terminal, or determined according to a protocol, or determined by the base station and the terminal separately based on the same determination method, or It is determined by the terminal through one or more parameters sent by the base station.
  • the base station may pre-store the indication information and the second association relationship between the number of repeated transmissions (that is, the above-mentioned subset of the number of repeated transmissions).
  • the subset of the number of repeated transmissions includes two repeated transmission times, which are R1 and R2, then the indication information can be 1 bit, 0 and 1, respectively, and the second association relationship can be that R1 corresponds to 0 and R2 corresponds to 1.
  • the base station can determine the indication information corresponding to the target number of repeated transmissions according to the second association relationship. For example, if the target number of repeated transmissions is R1, then according to the above second association relationship, it can be determined that the indication information corresponding to R1 is 0, so that 1 bit can be generated.
  • the instruction information 0 is sent to the terminal.
  • the terminal may also pre-store or receive the above-mentioned second association relationship from the base station, and after receiving the indication information 0, the terminal may determine the number of target repeated transmissions indicated by the indication information 0 according to the above-mentioned second association relationship. For R1.
  • Fig. 7 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • the link adaptation parameters include a modulation and coding strategy and the number of repeated transmissions of downlink information
  • the determining a subset of link adaptation parameters from a set of link adaptation parameters includes:
  • a modulation and coding strategy subset is determined in the modulation and coding strategy set, and the modulation and coding strategy subset includes at least one modulation and coding strategy; The subset includes at least one number of repeated transmissions.
  • the link adaptation parameters can include both modulation and coding strategies and the number of repeated transmissions of downlink information. Then the link adaptation parameter set can be divided into two parts, one is the modulation and coding strategy set, and the other is the modulation and coding strategy set. Set the number of repeated transmissions, and determine the subset of link adaptation parameters from the set of link adaptation parameters, which can be determined by determining the modulation and coding strategy subset in the modulation and coding strategy set, and determining the number of repeated transmissions in the set of repeated transmissions. set.
  • the indication information includes a first part of indication information used to indicate a modulation and coding strategy and a second part of indication information used to indicate the number of repetitions in the candidate repetition subset; wherein, the number of candidate repetitions It is determined according to the third association relationship between the number of repetitions and the modulation and coding strategy.
  • the link adaptation parameter may include both the modulation and coding strategy and the number of repeated transmissions of downlink information
  • This association relationship is called the third association relationship.
  • the association relationship between the foregoing MCS1, MCS2, MCS3, and MCS6 and the number of repeated transmissions R1 to R4 may be as shown in Table 1:
  • Modulation coding strategy At least one repetition MCS1 R1, R2 MCS2 R1, R2 MCS3 R3, R4 MCS6 R3, R4
  • the transmission times corresponding to MCS1 and MCS2 are both R1 and R2, and the transmission times corresponding to MCS3 and MCS6 are both R3 and R4.
  • the third association relationship may be sent by the base station to the terminal, or pre-stored by the terminal.
  • the terminal may determine the target modulation indicated by the indication information according to the association relationship between the pre-stored indication information and the modulation and coding strategy. Coding strategy, and then determine the set of candidate repetition times corresponding to the target modulation and coding strategy according to the third association relationship.
  • the third association relationship between the number of repeated transmissions and the modulation and coding strategy may be configured by the base station to the terminal, or determined according to the protocol, or determined by the base station and the terminal separately based on the same determination method, Or the terminal is determined by one or more parameters sent by the base station.
  • the indication information may include two parts, where the first part of the indication information is used to indicate the modulation and coding strategy, and the second part of the indication information is used to indicate the number of repeated transmissions.
  • the indication information includes 3 bits, which may specifically be 011, where the first two bits are used as the first part of the indication information to indicate the modulation and coding strategy, and the last bit is used as the second part of the indication information to indicate the number of repeated transmissions.
  • the modulation and coding strategy determined according to 01 may be MCS1, and the at least one number of repeated transmissions corresponding to MCS1 may be queried as R1 and R2 according to the third association relationship.
  • the terminal may also receive from the base station, or pre-store the association relationship between the indication information and the candidate retransmission times subset.
  • the association relationship between the indication information and the candidate retransmission times subset mentioned here and The second association relationship in the foregoing embodiment may be different.
  • the number of repeated transmissions in the subset of candidate repeated transmissions can be sorted according to a specific rule, for example, sorted from small to large, then the indication information and the number of repeated transmissions are different here.
  • the inter-association relationship may be an association relationship between the indication information and the number of repeated transmissions in a specific order.
  • a subset of candidate retransmission times includes two candidate retransmission times R1 and R2.
  • R1 is smaller
  • R2 is larger
  • R1 is ranked before R2
  • the third association relationship is indicating information 0.
  • the number of repeated transmissions indicates the number of repeated transmissions in the lower order of the indication information 1.
  • the terminal can accurately determine the modulation and coding strategy and the number of repeated transmissions.
  • Fig. 8 is a schematic flowchart of determining indication information according to an embodiment of the present disclosure. As shown in Figure 8, the indication information can be determined in the following manner:
  • step SA determine the first part of the indication information corresponding to the target modulation and coding strategy according to the association relationship between the pre-stored indication information and the modulation and coding strategy;
  • step SB a subset of candidate repeated transmission times corresponding to the target modulation and coding strategy is determined according to the third association relationship;
  • step SC determine the second part of the indication information corresponding to the target repeated transmission count in the candidate repeated transmission count subset according to the pre-stored indication information and the association relationship between the candidate repeated transmission count subset;
  • step SD the indication information is determined according to the first part of the indication information and the second part of the indication information.
  • the base station also needs to take the third association relationship into consideration when determining the indication information according to the target link adaptation parameter.
  • the first part of the indication information corresponding to the target modulation and coding strategy may be determined first according to the association relationship between the pre-stored indication information and the modulation and coding strategy.
  • the target modulation and coding strategy is MCS2
  • the corresponding first part of the indication information is 01.
  • a subset of candidate retransmission times corresponding to the target modulation and coding strategy is determined.
  • the candidate retransmission times subset corresponding to MCS2 is itself formed by R1 and R2.
  • the second part of the instruction information corresponding to the target repeated transmission number in the candidate repeated transmission number subset can be determined according to the pre-stored indication information and the candidate repeated transmission number subset.
  • the target repeated transmission number is R2
  • the corresponding For the number of repeated transmissions in the lower-ranked candidate repeated transmission number subset, then the generated second part of the indication information may be 1.
  • the indication information is determined according to the first part of the indication information and the second part of the indication information. For example, if the first part of the indication information is 01 and the second part of the indication information is 1, then the determined indication information is 011.
  • Fig. 9 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure. As shown in Figure 9, the method further includes:
  • step S104 record historical channel state information of the terminal
  • the determining a subset of link adaptation parameters from a set of link adaptation parameters includes:
  • step S1014 in the link adaptation parameter set, at least one link adaptation parameter that matches the historical channel state information is determined as the link adaptation parameter subset.
  • the base station can record the historical channel state information of the terminal.
  • the method for the base station to determine the channel state information of the terminal can be selected as required. According to the analysis, the present disclosure does not limit this.
  • the channel state will affect the communication link between the base station and the terminal. Therefore, when determining the link adaptation parameter subset from the link adaptation parameter set, you can determine at least one link that matches the historical channel state information
  • the adaptation parameters are used as a subset of the link adaptation parameters, so that the base station can subsequently select the target link adaptation parameter from at least one link adaptation parameter that matches the historical channel state information and indicate it to the terminal to ensure that the selected link adaptation parameter is selected.
  • the target link adaptation parameters of are also matched with the historical channel state information, so that the terminal can communicate well with the base station in the channel state it is in based on the indicated target link adaptation parameters.
  • Fig. 10 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure. As shown in FIG. 10, before the target link adaptation parameter is determined in the at least one link adaptation parameter, the method further includes:
  • step S105 determine the current channel state information of the terminal
  • the target link adaptation parameter is a link adaptation parameter matching the current state information in the subset of link adaptation parameters.
  • the channel state will affect the communication link between the base station and the terminal. Therefore, when the target link adaptation parameter is determined in the link adaptation parameter subset, it can be determined to match the current state information
  • the target link adaptation parameter of the target link can ensure that the terminal can communicate well with the base station under the channel state it is in based on the indicated target link adaptation parameter.
  • Fig. 11 is a schematic flowchart showing yet another method for indicating link adaptation parameters according to an embodiment of the present disclosure. As shown in FIG. 11, the determining a subset of link adaptation parameters from a set of link adaptation parameters includes:
  • step S1015 in the case where the type of the terminal belongs to the preset type, or in the case where the first frequency at which the position of the terminal changes is less than the first preset frequency, or in the historical channel state of the terminal In the case where the second frequency of the information change is less than the second preset frequency, the link adaptation parameter subset is determined from the link adaptation parameter set, and the subsequent steps of the embodiment shown in FIG. 1.
  • the base station may first determine the type of the terminal, and determine whether the steps in the embodiment shown in FIG. 1 need to be performed according to whether the type of the terminal belongs to a preset type.
  • the type of the terminal can be reported to the base station by the terminal itself, or can be obtained by the base station from the core network, which can be specifically selected according to needs.
  • a terminal belonging to the preset type can perform the steps in the embodiment shown in FIG. 1, while for a terminal not belonging to the preset type, the target link adaptation parameter can be directly determined in the link adaptation parameter set.
  • the base station may first determine the first frequency at which the position of the terminal changes, and determine whether it is necessary to perform the steps in the embodiment shown in FIG. 1 according to the first frequency.
  • the first frequency of the location change of the terminal may be reported by the terminal itself to the base station, or may be obtained by the base station in other ways, and may be specifically selected according to needs.
  • the steps in the embodiment shown in FIG. 1 can be performed, and when the first frequency is not less than the first preset frequency, then The target link adaptation parameter can be determined directly in the link adaptation parameter set.
  • the base station may first determine the second frequency at which the historical channel state information of the terminal changes, and determine whether it is necessary to perform the steps in the embodiment shown in FIG. 1 according to the second frequency.
  • the second frequency of the historical channel state information change of the terminal may be reported to the base station by the terminal itself, or may be obtained by the base station in other ways, and may be specifically selected according to needs.
  • the steps in the embodiment shown in FIG. 1 can be performed, and when the second frequency is not less than the second preset frequency, it can be directly Determine the target link adaptation parameter in the link adaptation parameter set.
  • the link adaptation parameter subset includes multiple consecutive link adaptation parameters in the link adaptation parameter set, or includes multiple non-continuous link adaptation parameters in the link adaptation parameter set. Link adaptation parameters.
  • the subset of link adaptation parameters determined in the link adaptation parameter set may be consecutive multiple link adaptation parameters in the link adaptation parameter set, or it may be the link adaptation parameter set. Adapt multiple non-continuous link adaptation parameters in the parameter set.
  • the modulation and coding strategy subset can be the 4 modulation and coding strategies of the link, such as MCS2, MCS3, MCS4 and MCS5, or it can be non-contiguous 4 of them
  • Modulation and coding strategies, such as MCS1, MCS2, MCS3, and MCS6, can be specifically set as required, or can be determined according to the historical channel state information of the terminal.
  • Fig. 12 is a schematic flowchart showing a method for determining link adaptation parameters according to an embodiment of the present disclosure.
  • the method for determining link adaptation parameters shown in this embodiment can be applied to a terminal, and the terminal can be used as a user equipment to communicate with the base station described in the above embodiment, such as a 5G NR base station, a 4G LTE base station, etc.
  • the terminal includes but Not limited to mobile phones, tablet computers, wearable devices, personal computers, smart furniture, industrial sensors, etc., the type of the terminal can be an NR-lite terminal.
  • the method for determining link adaptation parameters may include the following steps:
  • step S201 receiving indication information sent by the base station for indicating link adaptation parameters
  • step S202 according to the association relationship between the pre-stored indication information and the link adaptation parameter subset in the link adaptation parameter set, the target chain corresponding to the received indication information in the link adaptation parameter subset is determined Road adaptive parameters.
  • the base station does not need to determine the target link adaptation parameters that need to be indicated to the terminal in the link adaptation parameter set, but may determine the link adaptation parameter subset from the link adaptation parameter set, and then In this subset of link adaptation parameters, the target link adaptation parameters are selected and indicated to the terminal.
  • the terminal Before receiving the indication information, the terminal has stored the association relationship between the indication information and the link adaptation parameter subset in the link adaptation parameter set, so that after receiving the indication information, it can communicate with the link according to the pre-stored indication information.
  • the association relationship of the link adaptation parameter subset in the adaptation parameter set is determined, and the target link adaptation parameter corresponding to the received indication information in the link adaptation parameter subset is determined, that is, the target link indicated by the base station is determined Road adaptive parameters.
  • the link adaptation parameter is a modulation and coding strategy
  • the target link adaptation parameter indicated by the base station is MCS2
  • the association relationship between the indication information stored in advance by the terminal and the link adaptation parameter subset in the link adaptation parameter set is: MCS1 corresponds to indication information 00, MCS2 corresponds to indication information 01, MCS3 corresponds to indication information 10, and MCS6 corresponds to indication information 11. If the received indication information is 01, it can be determined that the target modulation and coding strategy indicated by the base station is MCS2.
  • Fig. 13 is a schematic flowchart of another method for determining link adaptation parameters according to an embodiment of the present disclosure.
  • the link adaptation parameters include a modulation and coding strategy, and the received indication is determined according to the association relationship between the pre-stored indication information and the link adaptation parameter subset in the link adaptation parameter set.
  • the target link adaptation parameters corresponding to the information in the link adaptation parameter subset include:
  • step S2021 according to the first association relationship between the pre-stored indication information and the modulation and coding strategy subset in the modulation and coding strategy set, the target modulation and coding strategy corresponding to the received indication information in the modulation and coding strategy subset is determined.
  • the terminal may pre-store the indication information and the first association relationship between the modulation and coding strategy subset in the modulation and coding strategy set, and then determine according to the association relationship
  • the received indication information corresponds to the target modulation and coding strategy in the modulation and coding strategy subset.
  • Fig. 14 is a schematic flowchart showing yet another method for determining link adaptation parameters according to an embodiment of the present disclosure.
  • the link adaptation parameters include the number of repeated transmissions of downlink information, and the reception is determined according to the association relationship between the pre-stored indication information and the link adaptation parameter subset in the link adaptation parameter set.
  • the target link adaptation parameters corresponding to the received indication information in the link adaptation parameter subset include:
  • step S2022 according to the second association relationship between the pre-stored indication information and the repetitive transmission frequency subset in the repetitive transmission frequency set, the target repeated transmission frequency corresponding to the received indication information in the repetitive transmission frequency subset is determined.
  • the terminal may pre-store the indication information and the second association relationship of the subset of the repeated transmission times in the set of repeated transmission times, and then determine according to the association relationship The number of target repeated transmissions corresponding to the received indication information in the subset of the number of repeated transmissions.
  • Fig. 15 is a schematic flowchart showing yet another method for determining link adaptation parameters according to an embodiment of the present disclosure.
  • the link adaptation parameters include a modulation and coding strategy and the number of repeated transmissions of downlink information.
  • the association relationship, determining the target link adaptation parameter corresponding to the received indication information in the link adaptation parameter subset includes:
  • step S2023 obtain the first part of the indication information corresponding to the modulation and coding strategy and the second part of the indication information corresponding to the number of repeated transmissions;
  • step S2024 the target modulation and coding strategy corresponding to the first part of the indication information is determined according to the association relationship between the pre-stored indication information and the modulation and coding strategy;
  • step S2025 a subset of candidate repeated transmission times corresponding to the target modulation and coding strategy is determined according to the third association relationship between the modulation and coding strategy and the number of repeated transmissions;
  • step S2026 the target repeated transmission times corresponding to the second part of the indication information in the candidate repeated transmission times subset are determined according to the pre-stored indication information and the association relationship between the candidate repeated transmission times subset.
  • the link adaptation parameter may include both the modulation and coding strategy and the number of repeated transmissions of downlink information
  • This association is called the third association.
  • the modulation and coding strategy includes MCS1, MCS2, MCS3, and MCS6, and the number of repeated transmissions includes R1, R2, R3, and R4.
  • MCS1, MCS2, MCS3, and MCS6 and the number of repeated transmissions R1 to The association relationship between R4 can be as shown in Table 1 above.
  • the terminal may receive the third association relationship sent by the base station, or pre-store the third association relationship. After receiving the indication information, the terminal may determine what the indication information indicates based on the association relationship between the pre-stored indication information and the modulation and coding strategy. Modulation and coding strategy, and the indication information may include two parts, where the first part of the indication information is used to indicate the modulation and coding strategy, and the second part of the indication information is used to indicate the number of repeated transmissions.
  • the indication information includes 3 bits, which may be specifically 011.
  • the first two bits are used as the first part of the indication information to indicate the modulation and coding strategy, and the last bit is used as the second part of the indication information to indicate the number of repeated transmissions.
  • the modulation and coding strategy determined according to 01 may be MCS1, and the subset of candidate repeated transmission times corresponding to MCS1 may be queried according to the third association relationship as R1 and R2.
  • the terminal also pre-stores the association relationship between the indication information and the number of repeated transmissions.
  • the number of repeated transmissions in the subset of repeated transmissions can be sorted according to a specific rule, such as sorting from small to large, then the indication information and the number of repeated transmissions
  • the inter-association relationship may be an association relationship between the indication information and the number of repeated transmissions in a specific order.
  • R1 is smaller, R2 is larger, R1 is ranked before R2, and the third association relationship is the number of repeated transmissions indicating information 0 is associated with the highest order, and indicating information 1 is associated with the lowest order.
  • the number of repeated transmissions in the case where the last bit in the indication information is 1, it can be determined that the number of repeated transmissions associated with the indication information is R2. According to this, the terminal can accurately determine the modulation and coding strategy and the number of repeated transmissions.
  • the present disclosure also provides embodiments of the link adaptation parameter indication device and the link adaptation parameter determination device.
  • Fig. 16 is a schematic block diagram showing a device for indicating link adaptation parameters according to an embodiment of the present disclosure.
  • the link adaptation parameter indication device shown in this embodiment can be applied to base stations, such as 5G NR base stations, 4G LTE base stations, etc.
  • the base station can communicate with terminals as user equipment, including but not limited to mobile phones, Tablet computers, wearable devices, personal computers, smart furniture, industrial sensors, etc., the type of terminal can be an NR-lite terminal.
  • the link adaptation parameter indicating device may include:
  • the subset determining module 101 is configured to determine a link adaptation parameter subset from a link adaptation parameter set, where the link adaptation parameter subset includes at least one link adaptation parameter;
  • the indication sending module 102 is configured to send indication information for indicating the target link adaptation parameter to the terminal, where the target link adaptation parameter is a link in the link adaptation parameter subset. Road adaptive parameters.
  • Fig. 17 is a schematic block diagram showing another link adaptation parameter indicating device according to an embodiment of the present disclosure. As shown in Figure 17, the device further includes:
  • the subset sending module 103 is configured to send the link adaptation parameter subset to the terminal.
  • the link adaptation parameters include a modulation and coding strategy
  • the subset determining module is configured to determine a modulation and coding strategy subset from a modulation and coding strategy set, and the modulation and coding strategy subset includes a modulation and coding strategy Subset.
  • the instruction sending module is configured to determine the instruction information for identifying the corresponding modulation and coding strategy according to the first association relationship between the instruction information and the modulation and coding strategy, and send the instruction information to the terminal.
  • the link adaptation parameter includes the number of repeated transmissions of the downlink information
  • the subset determining module is configured to determine a subset of the number of repeated transmissions in the set of the number of repeated transmissions, and the subset of the number of repeated transmissions includes At least one number of repeated transmissions.
  • the instruction sending module is configured to determine the instruction information for identifying the corresponding number of repeated transmissions according to the second association relationship between the instruction information and the number of repeated transmissions, and send the instruction information to the terminal.
  • the link adaptation parameters include a modulation and coding strategy and the number of repeated transmissions of downlink information
  • the subset determining module is configured to determine a modulation and coding strategy subset in a modulation and coding strategy set, and the modulation and coding strategy
  • the strategy subset includes at least one modulation and coding strategy; a subset of the number of repeated transmissions is determined in the set of the number of repeated transmissions, and the subset of the number of repeated transmissions includes at least one number of repeated transmissions.
  • the indication information includes the first part of the indication information used to indicate the modulation and coding strategy and the second part of the indication information used to indicate the number of repetitions in the subset of candidate repetition times; wherein, the candidate repetition times are Determined according to the third association relationship between the number of repetitions and the modulation and coding strategy.
  • Fig. 18 is a schematic block diagram showing still another link adaptation parameter indicating device according to an embodiment of the present disclosure. As shown in Figure 18, the device further includes:
  • the state recording module 104 is configured to record historical channel state information of the terminal
  • the subset determining module 101 is configured to determine at least one link adaptation parameter matching the historical channel state information in the link adaptation parameter set as the link adaptation parameter subset .
  • Fig. 19 is a schematic block diagram showing still another link adaptation parameter indicating device according to an embodiment of the present disclosure. As shown in FIG. 19, before the target link adaptation parameter is determined in the at least one link adaptation parameter, the apparatus further includes:
  • the state determining module 105 is configured to determine the current channel state information of the terminal
  • the target link adaptation parameter is a link adaptation parameter matching the current state information in the subset of link adaptation parameters.
  • the subset determining module 101 is configured to: when the type of the terminal belongs to a preset type, or when the first frequency at which the position of the terminal changes is less than the first preset frequency Or in a case where the second frequency of the historical channel state information change of the terminal is less than the second preset frequency, the link adaptation parameter subset is determined from the link adaptation parameter set.
  • the at least one link adaptation parameter is consecutive multiple link adaptation parameters in the link adaptation parameter set, or multiple non-consecutive links in the link adaptation parameter set Road adaptive parameters.
  • Fig. 20 is a schematic block diagram showing a device for determining a link adaptive parameter according to an embodiment of the present disclosure.
  • the apparatus for determining link adaptation parameters shown in this embodiment can be applied to a terminal, and the terminal can be used as a user equipment to communicate with the base station described in the above embodiment, such as a 5G NR base station, a 4G LTE base station, etc.
  • the terminal includes but Not limited to mobile phones, tablet computers, wearable devices, personal computers, smart furniture, industrial sensors, etc., the type of the terminal can be an NR-lite terminal.
  • the device for determining link adaptation parameters may include:
  • the indication receiving module 201 is configured to receive indication information sent by the base station for indicating link adaptation parameters
  • the subset determining module 202 is configured to determine that the received indication information is in the link adaptation parameter subset according to the association relationship between the prestored indication information and the link adaptation parameter subset in the link adaptation parameter set Corresponding target link adaptation parameters.
  • the link adaptation parameter includes a modulation and coding strategy
  • the subset determining module is configured to determine according to the first association relationship between the pre-stored indication information and the modulation and coding strategy subset in the modulation and coding strategy set
  • the received indication information corresponds to the target modulation and coding strategy in the modulation and coding strategy subset.
  • the link adaptation parameter includes the number of repeated transmissions of the downlink information
  • the subset determining module is configured to perform a second association between the pre-stored indication information and a subset of the number of repeated transmissions in the set of repeated transmissions. Relationship, determining the number of target repeated transmissions corresponding to the received instruction information in the subset of the number of repeated transmissions.
  • Fig. 21 is a schematic block diagram showing a subset determining module according to an embodiment of the present disclosure.
  • the link adaptation parameters include a modulation and coding strategy and the number of repeated transmissions of downlink information.
  • the subset determining module 202 includes:
  • the instruction obtaining submodule 2021 is configured to obtain the first part of the indication information corresponding to the modulation and coding strategy and the second part of the indication information corresponding to the number of repeated transmissions;
  • the strategy determination sub-module 2022 is configured to determine the target modulation and coding strategy corresponding to the first part of the instruction information according to the pre-stored association relationship between the instruction information and the modulation and coding strategy;
  • the candidate determination submodule 2023 is configured to determine a subset of candidate repeated transmission times corresponding to the target modulation and coding strategy according to the third association relationship between the modulation and coding strategy and the number of repeated transmissions;
  • the frequency determination submodule 2024 is configured to determine the target repeated transmission times corresponding to the second part of the indication information in the candidate repeated transmission frequency subset according to the pre-stored indication information and the association relationship between the candidate repeated transmission frequency subset.
  • the relevant part can refer to the part of the description of the method embodiment.
  • the device embodiments described above are merely illustrative, and the modules described as separate components may or may not be physically separated, and the components displayed as modules may or may not be physical modules, that is, they may be located in One place, or it can be distributed to multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the objectives of the solutions of the embodiments. Those of ordinary skill in the art can understand and implement without creative work.
  • the embodiment of the present disclosure also proposes an electronic device, including:
  • a memory for storing processor executable instructions
  • the processor is configured to implement the link adaptation parameter indication method described in any of the foregoing embodiments.
  • the embodiment of the present disclosure also proposes an electronic device, including:
  • a memory for storing processor executable instructions
  • the processor is configured to implement the link adaptation parameter determination method described in any of the foregoing embodiments.
  • the embodiment of the present disclosure also proposes a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps in the link adaptation parameter indication method described in any of the above embodiments are implemented.
  • the embodiment of the present disclosure also proposes a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps in the link adaptive parameter determination method described in any of the above embodiments are implemented.
  • FIG. 22 is a schematic block diagram of a device 2200 for determining link adaptation parameters according to an embodiment of the present disclosure.
  • the apparatus 2200 may be provided as a base station. 22, the device 2200 includes a processing component 2222, a wireless transmitting/receiving component 2224, an antenna component 2226, and a signal processing part specific to a wireless interface.
  • the processing component 2222 may further include one or more processors. One of the processors in the processing component 2222 may be configured to implement the link adaptation parameter determination method described in any of the foregoing embodiments.
  • Fig. 23 is a schematic block diagram showing a device 2300 for link adaptation parameter indication according to an embodiment of the present disclosure.
  • the device 2300 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • the device 2300 may include one or more of the following components: a processing component 2302, a memory 2304, a power supply component 2306, a multimedia component 2308, an audio component 2310, an input/output (I/O) interface 2312, a sensor component 2314, And the communication component 2316.
  • the processing component 2302 generally controls the overall operations of the device 2300, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • the processing component 2302 may include one or more processors 2320 to execute instructions to complete all or part of the steps of the above-mentioned link adaptation parameter indication method.
  • the processing component 2302 may include one or more modules to facilitate the interaction between the processing component 2302 and other components.
  • the processing component 2302 may include a multimedia module to facilitate the interaction between the multimedia component 2308 and the processing component 2302.
  • the memory 2304 is configured to store various types of data to support the operation of the device 2300. Examples of these data include instructions for any application or method operating on the device 2300, contact data, phone book data, messages, pictures, videos, etc.
  • the memory 2304 can be implemented by any type of volatile or non-volatile storage device or their combination, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable and Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read-only memory
  • EPROM erasable and Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Magnetic Disk Magnetic Disk or Optical Disk.
  • the power supply component 2306 provides power to various components of the device 2300.
  • the power supply component 2306 may include a power management system, one or more power supplies, and other components associated with the generation, management, and distribution of power for the device 2300.
  • the multimedia component 2308 includes a screen that provides an output interface between the device 2300 and the user.
  • the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touch, sliding, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure related to the touch or slide operation.
  • the multimedia component 2308 includes a front camera and/or a rear camera. When the device 2300 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front camera and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 2310 is configured to output and/or input audio signals.
  • the audio component 2310 includes a microphone (MIC).
  • the microphone is configured to receive external audio signals.
  • the received audio signal may be further stored in the memory 2304 or transmitted via the communication component 2316.
  • the audio component 2310 further includes a speaker for outputting audio signals.
  • the I/O interface 2312 provides an interface between the processing component 2302 and the peripheral interface module.
  • the peripheral interface module may be a keyboard, a click wheel, a button, and the like. These buttons may include, but are not limited to: home button, volume button, start button, and lock button.
  • the sensor component 2314 includes one or more sensors for providing the device 2300 with various aspects of state evaluation.
  • the sensor component 2314 can detect the open/close state of the device 2300 and the relative positioning of the components.
  • the component is the display and the keypad of the device 2300.
  • the sensor component 2314 can also detect the position change of the device 2300 or a component of the device 2300. , The presence or absence of contact between the user and the device 2300, the orientation or acceleration/deceleration of the device 2300, and the temperature change of the device 2300.
  • the sensor assembly 2314 may include a proximity sensor configured to detect the presence of nearby objects when there is no physical contact.
  • the sensor component 2314 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications.
  • the sensor component 2314 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • the communication component 2316 is configured to facilitate wired or wireless communication between the device 2300 and other devices.
  • the device 2300 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G LTE, 5G NR, or a combination thereof.
  • the communication component 2316 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel.
  • the communication component 2316 further includes a near field communication (NFC) module to facilitate short-range communication.
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • the apparatus 2300 may be implemented by one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing equipment (DSPD), programmable logic devices (PLD), field programmable Implemented by a gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components, and used to implement the above-mentioned link adaptive parameter indication method.
  • ASIC application specific integrated circuits
  • DSP digital signal processors
  • DSPD digital signal processing equipment
  • PLD programmable logic devices
  • FPGA field programmable Implemented by a gate array (FPGA), controller, microcontroller, microprocessor, or other electronic components, and used to implement the above-mentioned link adaptive parameter indication method.
  • a non-transitory computer-readable storage medium including instructions, such as a memory 2304 including instructions, which can be executed by the processor 2320 of the device 2300 to complete the link adaptation parameter indication.
  • the non-transitory computer-readable storage medium may be ROM, random access memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Abstract

本公开涉及链路自适应参数指示方法，包括：从链路自适应参数集合中确定链路自适应参数子集；将所述至少一个链路自适应参数发送至终端；在所述至少一个链路自适应参数中确定目标链路自适应参数；根据所述目标链路自适应参数确定指示信息，向所述终端发送所述指示信息。根据本公开的实施例，由于基站不必在链路自适应参数集合中确定需要指示给终端的目标链路自适应参数，而是可以从链路自适应参数集合中确定链路自适应参数子集，进而在这至少一个链路自适应参数中选择目标链路自适应参数指示给终端，指示信息所需占用的比特数就减少了，节约了通信资源。

Description

链路自适应参数指示以及链路自适应参数确定方法和装置 技术领域
本公开涉及通信技术领域，具体而言，涉及链路自适应参数指示方法、链路自适应参数确定方法、链路自适应参数指示装置、链路自适应参数确定装置、电子设备和计算机可读存储介质。
背景技术
在基站与终端通信时，为了使得终端能够适应当前链路的状态，可以向基站发送链路自适应参数，例如调制编码策略、下行数据的重复发送次数等。
基于信道不同的状态，终端需要适当的调制编码策略(Modulation and Coding Scheme，简称MCS)用于数据传输，而调制编码策略是由基站基于调制编码策略表格对终端进行指示的。在调制编码策略表格中包含多种调制编码策略，以及每个调制编码策略对应的索引，也即MCS index，基站可以通过下行链路控制信息(Downlink Control Information，简称DCI)中的若干个比特来指示调制编码策略的索引，进而指示索引对应的调制编码策略。
例如在NR(New Radio，新空口)中，调制编码策略表格包括32种调制编码策略，那么基站就需要通过下行链路控制信息中的5比特来指示调制编码策略，这对下行链路控制信息造成了较多的占用。
为了进行覆盖增强，基站可以重复向终端发送下行信息，同时考虑到终端信道的状态会发生变化，会为终端配置多个候选的重复发送次数，基站需要通过下行链路控制信息中的若干个比特向终端指示重复发送次数集合中的一个重复发送次数。这也对下行链路控制信息造成了较多的占用。
发明内容
有鉴于此，本公开的实施例提出了链路自适应参数指示方法、链路自适应参数确定方法、链路自适应参数指示装置、链路自适应参数确定装置、电子设备和计算机可读存储介质，以解决相关技术中的技术问题。
根据本公开实施例的第一方面，提出一种链路自适应参数指示方法，包括：
从链路自适应参数集合中确定链路自适应参数子集，所述链路自适应参数子集中包括至少一个链路自适应参数；
将用于指示所述目标链路自适应参数的指示信息发送给所述终端，其中所述目标链路自适应参数为所述链路自适应参数子集中的链路自适应参数。
根据本公开实施例的第二方面，提出一种链路自适应参数确定方法，包括：
接收基站发送的用于指示链路自适应参数的指示信息；
根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数。
根据本公开实施例的第三方面，提出一种链路自适应参数指示装置，包括：
子集确定模块，被配置为从链路自适应参数集合中确定链路自适应参数子集，所述链路自适应参数子集中包括至少一个链路自适应参数；
指示发送模块，被配置为将用于指示所述目标链路自适应参数的指示信息发送给所述终端，其中所述目标链路自适应参数为所述链路自适应参数子集中的链路自适应参数。
根据本公开实施例的第四方面，提出一种链路自适应参数确定装置，包括：
指示接收模块，被配置为接收基站发送的用于指示链路自适应参数的指示信息；
子集确定模块，被配置为根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数。
根据本公开实施例的第五方面，提出一种电子设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为实现上述任一实施例所述的链路自适应参数指示方法。
根据本公开实施例的第六方面，提出一种电子设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为实现上述任一实施例所述的链路自适应参数确定方法。
根据本公开实施例的第七方面，提出一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述任一实施例所述的链路自适应参数指示方法中的步骤。
根据本公开实施例的第八方面，提出一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述任一实施例所述的链路自适应参数确定方法中的步骤。
根据本公开的实施例，由于基站不必在链路自适应参数集合中确定需要指示给终端的目标链路自适应参数，而是可以从链路自适应参数集合中确定链路自适应参数子集，进而在链路自适应参数子集中选择目标链路自适应参数指示给终端。
由于链路自适应参数子集中链路自适应参数的数量，少于链路自适应参数集合中链路自适应参数的数量，那么在链路自适应参数子集中中确定目标链路自适应参数生成的指示信息，相对于在链路自适应参数集合中确定目标链路自适应参数生成的指示信息，指示信息所需占用的比特数就减少了，节约了通信资源。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1是根据本公开的实施例示出的一种链路自适应参数指示方法的示意流程图。
图2是根据本公开的实施例示出的另一种链路自适应参数指示方法的示意流程图。
图3是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。
图4是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。
图5是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。
图6是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。
图7是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。
图8是根据本公开的实施例示出的一种确定指示信息的示意流程图。
图9是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。
图10是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。
图11是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。
图12是根据本公开的实施例示出的一种链路自适应参数确定方法的示意流程图。
图13是根据本公开的实施例示出的另一种链路自适应参数确定方法的示意流程图。
图14是根据本公开的实施例示出的又一种链路自适应参数确定方法的示意流程图。
图15是根据本公开的实施例示出的又一种链路自适应参数确定方法的示意流程图。
图16是根据本公开的实施例示出的一种链路自适应参数指示装置的示意框图。
图17是根据本公开的实施例示出的另一种链路自适应参数指示装置的示意框图。
图18是根据本公开的实施例示出的又一种链路自适应参数指示装置的示意框 图。
图19是根据本公开的实施例示出的又一种链路自适应参数指示装置的示意框图。
图20是根据本公开的实施例示出的一种链路自适应参数确定装置的示意框图。
图21是根据本公开的实施例示出的一种子集确定模块的示意框图。
图22是根据本公开的实施例示出的一种用于链路自适应参数确定的装置的示意框图。
图23是根据本公开的实施例示出的一种用于链路自适应参数指示的装置的示意框图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
图1是根据本公开的实施例示出的一种链路自适应参数指示方法的示意流程图。本实施例所示的链路自适应参数指示方法可以适用于基站，例如5G NR基站，4G LTE基站等，所述基站可以与作为用户设备的终端进行通信，所述终端包括但不限于手机、平板电脑、可穿戴设备、个人计算机、智能家居、工业传感器等，该终端的类型可以是NR-lite终端。
如图1所示，所述链路自适应参数指示方法可以包括以下步骤：
在步骤S101中，从链路自适应参数集合中确定链路自适应参数子集，所述链路自适应参数子集中包括至少一个链路自适应参数；
在步骤S102中，将用于指示所述目标链路自适应参数的指示信息发送给所述终端，其中所述目标链路自适应参数为所述链路自适应参数子集中的链路自适应参数。
在一个实施例中，基站可以不必在链路自适应参数集合中确定需要指示给终端的目标链路自适应参数，而是可以先从链路自适应参数集合中确定链路自适应参数子集，例如可以根据终端信道状态信息，在链路自适应参数集合中确定适用于该信道状 态信息的至少一个链路自适应参数作为所述链路自适应参数子集，所述链路自适应参数子集可以是所述链路自适应参数集合的真子集，也即链路自适应参数子集中链路自适应参数的数量，少于链路自适应参数集合中链路自适应参数的数量。基站后续在向终端指示链路自适应参数时，可以在该链路自适应参数子集中选择目标链路自适应参数指示给终端。
在本公开的所有实施例中，链路自适应参数子集可以是基站配置给终端的，或是根据协议确定的，或是基站和终端基于相同的确定方式分别确定的，或是终端通过基站发送的一个或多个参数确定的。
需要说明的是，基站向终端指示目标链路自适应参数的操作可以发生多次，也即上述步骤S102可以发生多次。而从链路自适应参数集合中确定链路自适应参数子集，也即步骤S101，则可以在基站向终端指示目标链路自适应参数的多次操作之前仅执行一次，即可使得基站确定至少一个链路自适应参数作为链路自适应参数子集。
根据本公开的实施例，由于基站不必在链路自适应参数集合中确定需要指示给终端的目标链路自适应参数，而是可以从链路自适应参数集合中确定链路自适应参数子集，进而在链路自适应参数子集中选择目标链路自适应参数指示给终端。
由于链路自适应参数子集中链路自适应参数的数量，少于链路自适应参数集合中链路自适应参数的数量，那么在链路自适应参数子集中确定目标链路自适应参数生成的指示信息，相对于在链路自适应参数中确定目标链路自适应参数生成的指示信息，指示信息所需占用的比特数就减少了，节约了通信资源。
例如在NR中，调制编码策略表格包括32种调制编码策略，也即调制编码策略集合的数量为32个，那么基站就需要5比特的指示信息来指示调制编码策略。而根据本公开的实施例，链路自适应参数子集只是上述32个调制编码策略中的部分调制编码策略，例如链路自适应参数子集包括4种调制编码策略，那么基站就只需要2比特的指示信息来指示调制编码策略即可，从而减少了占用的比特数。
图2是根据本公开的实施例示出的另一种链路自适应参数指示方法的示意流程图。如图2所示，所述方法还包括：
在步骤S103中，将所述链路自适应参数子集发送至终端。
在一个实施例中，基站可以将确定的链路自适应参数自己发送给终端，以便终端在接收到基站发送的所述指示信息后，可以先确定需要在什么范围内确定指示信息 对应的目标链路自适应参数。
需要说明的是，链路自适应参数子集除了可以由基站指示给终端，也可以是终端预先存储的，对此，本公开不做限制，可以根据需要设置。
图3是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。如图3所示，所述链路自适应参数包括调制编码策略，所述从链路自适应参数集合中确定链路自适应参数子集包括：
在步骤S1011中，从调制编码策略集合中确定调制编码策略子集，所述调制编码策略子集中包括调制编码策略子集。
在一个实施例中，链路自适应参数可以包括调制编码策略，那么链路自适应参数集合就是调制编码策略集合，例如可以是上述32种调制编码策略，从链路自适应参数集合中确定链路自适应参数子集就可以是在调制编码策略集合中确定调制编码策略子集，调制编码策略子集中调制编码策略的具体数量可以根据实际情况确定。
图4是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。如图4所示，所述将用于指示所述目标链路自适应参数的指示信息发送给所述终端包括：
在步骤S1021中，根据指示信息与调制编码策略的第一关联关系，确定用于标识对应调制编码策略的指示信息，并将所述指示信息发送到所述终端。
在本公开的所有实施例中，指示信息与调制编码策略的第一关联关系可以是基站配置给终端的，或是根据协议确定的，或是基站和终端基于相同的确定方式分别确定的，或是终端通过基站发送的一个或多个参数确定的。
在一个实施例中，基站可以预先存储的指示信息与调制编码策略(也即上述调制编码策略子集)的第一关联关系，例如调制编码策略子集包括4个调制编码策略，分别是MCS1(索引1对应的调制编码策略)、MCS2(索引2对应的调制编码策略)、MCS3(索引3对应的调制编码策略)和MCS6(索引6对应的调制编码策略)，那么指示信息可以为2比特，分别为00、01、10、11，第一关联关系可以是MCS1对应00、MCS2对应01、MCS3对应10、MCS6对应11。
进而基站可以根据该第一关联关系确定目标调制编码策略对应的指示信息，例如目标调制编码策略为MCS2，那么根据上述第一关联关系，可以确定MCS2对应的指示信息为01，从而可以生成两比特的指示信息01发送至终端。
需要说明的是，终端也可以预先存储或者从基站接收上述第一关联关系，进而终端在接收到指示信息01后，就可以根据上述第一关联关系，确定指示信息01所指示的目标调制编码策略为MCS2。
图5是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。如图5所示，所述链路自适应参数包括下行信息的重复发送次数，所述从链路自适应参数集合中确定链路自适应参数子集包括：
在步骤S1012中，在重复发送次数集合中确定重复发送次数子集，所述重复发送次数子集中包括至少一个重复发送次数。
在一个实施例中，链路自适应参数可以包括下行信息的重复发送次数，那么链路自适应参数集合就是重复发送次数集合，例如可以设置重复发送次数集合包括4种重复发送次数，分别为R1、R2、R3和R4(R1至R4具体所代表的次数可以根据需要设置)，从链路自适应参数集合中确定链路自适应参数子集就可以是在重复发送次数集合中确定重复发送次数子集，重复发送次数子集中重复发送次数的具体数量可以根据实际情况确定。
图6是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。如图6所示，所述从链路自适应参数集合中确定链路自适应参数子集包括：
在步骤S1022中，根据指示信息与重复发送次数的第二关联关系，确定用于标识对应重复发送次数的指示信息，并将所述指示信息发送到所述终端。
在本公开的所有实施例中，指示信息与重复发送次数的第二关联关系可以是基站配置给终端的，或是根据协议确定的，或是基站和终端基于相同的确定方式分别确定的，或是终端通过基站发送的一个或多个参数确定的。
在一个实施例中，基站可以预先存储的指示信息与重复发送次数(也即上述重复发送次数子集)的第二关联关系，例如重复发送次数子集包括2个重复发送次数，分别是R1和R2，那么指示信息可以为1比特，分别为0和1，第二关联关系可以是R1对应0、R2对应1。
进而基站可以根据该第二关联关系确定目标重复发送次数对应的指示信息，例如目标重复发送次数为R1，那么根据上述第二关联关系，可以确定R1对应的指示信息为0，从而可以生成1比特的指示信息0发送至终端。
需要说明的是，终端也可以预先存储或者从基站接收上述第二关联关系，进而 终端在接收到指示信息0后，就可以根据上述第二关联关系，确定指示信息0所指示的目标重复发送次数为R1。
图7是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。如图7所示，所述链路自适应参数包括调制编码策略和下行信息的重复发送次数，所述从链路自适应参数集合中确定链路自适应参数子集包括：
在步骤S1013中，在调制编码策略集合中确定调制编码策略子集，所述调制编码策略子集中至少包括一个调制编码策略；在重复发送次数集合中确定重复发送次数子集，所述重复发送次数子集中至少包括一个重复发送次数。
在一个实施例中，链路自适应参数可以既包括调制编码策略，又包括下行信息的重复发送次数，那么链路自适应参数集合可以分为两部分，一部分是调制编码策略集合，另一部分是重复发送次数集合，从链路自适应参数集合中确定链路自适应参数子集，就可以是在调制编码策略集合中确定调制编码策略子集，以及在重复发送次数集合中确定重复发送次数子集。
可选地，所述指示信息包括用于指示调制编码策略的第一部分指示信息和用于指示候选重复发生次子集合中的重复发生次数的第二部分指示信息；其中，所述候选重复发生次数为根据所述重复发生次数与所述调制编码策略之间的第三关联关系确定的。
在一个实施例中，在链路自适应参数可以既包括调制编码策略，又包括下行信息的重复发送次数的情况下，调制编码策略与重复发送次数子集之间可以存在关联关系，本实施例将该关联关系称作第三关联关系，例如上述MCS1、MCS2、MCS3和MCS6与重复发送次数R1至R4之间的关联关系可以如表1所示：
调制编码策略 至少一个重复发送次数
MCS1 R1,R2
MCS2 R1,R2
MCS3 R3,R4
MCS6 R3,R4
表1
也即MCS1和MCS2对应的传输次数都是R1和R2，MCS3和MCS6对应的传 输次数都是R3和R4。
第三关联关系可以由基站发送至终端，也可以由终端预先存储，终端在接收到指示信息后，可以根据预先存储的指示信息与调制编码策略之间的关联关系确定指示信息所指示的目标调制编码策略，然后根据第三关联关系确定目标调制编码策略对应的候选重复发生次数集合。
在本公开的所有实施例中，重复发送次数与调制编码策略的第三关联关系可以是基站配置给终端的，或是根据协议确定的，或是基站和终端基于相同的确定方式分别确定的，或是终端通过基站发送的一个或多个参数确定的。
而指示信息可以包括两部分，其中第一部分指示信息用于指示调制编码策略，第二部分指示信息用于指示重复发送次数。例如指示信息包括3比特，具体可以为011，其中前两比特作为第一部分指示信息用于指示调制编码策略，最后一个比特作为第二部分指示信息用于指示重复传出次数。例如根据01确定的调制编码策略可以为MCS1，进而可以根据第三关联关系查询MCS1对应的至少一个重复传输次数为R1和R2。
终端还可以从基站接收，或者预先存储指示信息与候选重复发送次数子集之间的关联关系，需要说明的是此处所指的指示信息与候选重复发送次数子集之间的关联关系，与上述实施例中的第二关联关系可以是不同的，其中，可以先将候选重复发送次数子集中的重复发送次数按照特定规则排序，例如从小到大排序，那么此处指示信息与重复发送次数之间的关联关系，可以是指示信息与位于特定排序的重复发送次数之间的关联关系。
例如候选重复发送次数子集包括两个候选重复发送次数R1和R2，在R1和R2中，R1较小，R2较大，R1排在R2之前，第三关联关系是指示信息0关联排序靠前的重复发送次数，指示信息1关联排序靠后的重复发送次数，那么在指示信息中最后一个比特为1的情况下，可以确定指示信息关联的重复发送次数为R2。据此，可以使得终端准确地确定调制编码策略和重复发送次数。
图8是根据本公开的实施例示出的一种确定指示信息的示意流程图。如图8所示，所述指示信息可以通过以下方式确定：
在步骤SA中，根据预先存储的指示信息与调制编码策略的关联关系，确定目标调制编码策略对应的第一部分指示信息；
在步骤SB中，根据所述第三关联关系确定所述目标调制编码策略对应的候选 重复发送次数子集；
在步骤SC中，根据预先存储的指示信息与所述候选重复发送次数子集的关联关系，确定所述候选重复发送次数子集中目标重复发送次数对应的第二部分指示信息；
在步骤SD中，根据所述第一部分指示信息和所述第二部分指示信息确定所述指示信息。
在一个实施例中，基站在根据目标链路自适应参数确定指示信息时，也需要将第三关联关系考虑进来。
具体地，可以先根据预先存储的指示信息与调制编码策略的关联关系，确定目标调制编码策略对应的第一部分指示信息，例如目标调制编码策略是MCS2，其对应的第一部分指示信息为01。
然后根据所述第三关联关系确定所述目标调制编码策略对应的候选重复发送次数子集，例如根据上述表1可知，MCS2对应的候选重复发送次数子集为R1和R2构成的自己。接下来可以根据预先存储的指示信息与所述候选重复发送次数子集的关联关系，确定候选重复发送次数子集中目标重复发送次数对应的第二部分指示信息，例如目标重复发送次数为R2，对应候选重复发送次数子集中排序靠后的重复发送次数，那么生成的第二部分指示信息可以为1。
最后根据所述第一部分指示信息和所述第二部分指示信息确定所述指示信息，例如第一部分指示信息为01，第二部分指示信息为1，那么确定的指示信息就是011。
图9是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。如图9所示，所述方法还包括：
在步骤S104中，记录终端的历史信道状态信息；
其中，所述从链路自适应参数集合中确定链路自适应参数子集包括：
在步骤S1014中，在链路自适应参数集合中，确定与所述历史信道状态信息相匹配的至少一个链路自适应参数作为所述链路自适应参数子集。
在一个实施例中，基站可以记录终端的历史信道状态信息，其中，基站确定终端的信道状态信息的方式可以根据需要进行选择，例如可以由终端主动上报，也可以由基站根据来自终端的上行数据进行分析得到，对此，本公开不作限制。
信道状态会对基站与终端之间的通信链路造成影响，因此从链路自适应参数集 合中确定链路自适应参数子集时，可以，确定与历史信道状态信息相匹配的至少一个链路自适应参数作为所述链路自适应参数子集，从而使得基站后续可以在与历史信道状态信息相匹配的至少一个链路自适应参数中挑选目标链路自适应参数指示给终端，确保所选择的目标链路自适应参数也都是与历史信道状态信息相匹配的，以便终端基于所指示的目标链路自适应参数能够良好地在其所处的信道状态下与基站进行良好地通信。
图10是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。如图10所示，在所述至少一个链路自适应参数中确定目标链路自适应参数之前，所述方法还包括：
在步骤S105中，确定所述终端的当前信道状态信息；
其中，所述目标链路自适应参数为所述链路自适应参数子集中与所述当前状态信息相匹配的链路自适应参数。
在一个实施例中，信道状态会对基站与终端之间的通信链路造成影响，因此在所述链路自适应参数子集中确定目标链路自适应参数时，可以确定与当前状态信息相匹配的目标链路自适应参数，从而确保终端能够基于所指示的目标链路自适应参数能够良好地在其所处的信道状态下与基站进行良好地通信。
图11是根据本公开的实施例示出的又一种链路自适应参数指示方法的示意流程图。如图11所示，所述从链路自适应参数集合中确定链路自适应参数子集包括：
在步骤S1015中，在所述终端的类型属于预设类型的情况下，或在所述终端的位置变化的第一频率小于第一预设频率的情况下，或在所述终端的历史信道状态信息变化的第二频率小于第二预设频率的情况下，从链路自适应参数集合中确定链路自适应参数子集，以及图1所示实施例的后续步骤。
在一个实施例中，基站可以先确定终端的类型，并根据终端的类型是否属于预设类型来判断是否需要执行图1所示实施例中的步骤。其中，终端的类型可以由终端自己上报给基站，也可以由基站从核心网获取，具体可以根据需要选择。
由于预设类型的终端的使用位置相对固定，例如工业传感器，那么其信道状态信息几乎是保持不变的，那么可以不必大幅改变为其指示的链路自适应参数，因此对于这种终端，也即属于预设类型的终端，可以执行图1所示实施例中的步骤，而对于不属于预设类型的终端，则可以直接在链路自适应参数集合中确定目标链路自适应参 数。
在一个实施例中，基站可以先确定终端的位置变化的第一频率，并根据第一频率判断是否需要执行图1所示实施例中的步骤。其中，终端的位置变化的第一频率可以由终端自己上报给基站，也可以由基站通过其他方式获取，具体可以根据需要选择。
基于终端的位置变化的第一频率，可以判断终端的使用位置是否相对固定，若第一频率小于第一预设频率，那么可以判定其位置相对固定，其信道状态信息几乎是保持不变的，那么可以不必大幅改变为其指示的链路自适应参数，因此对于这种终端，可以执行图1所示实施例中的步骤，而在第一频率不小于第一预设频率的情况下，则可以直接在链路自适应参数集合中确定目标链路自适应参数。
在一个实施例中，基站可以先确定终端的历史信道状态信息变化的第二频率，并根据第二频率判断是否需要执行图1所示实施例中的步骤。其中，终端的历史信道状态信息变化的第二频率可以由终端自己上报给基站，也可以由基站通过其他方式获取，具体可以根据需要选择。
基于终端的历史信道状态信息变化的第二频率，可以判断终端的信道状态是否相对固定，若第二频率小于第二预设频率，那么可以判定其信道状态信息几乎是保持不变的，那么可以不必大幅改变为其指示的链路自适应参数，因此对于这种终端，可以执行图1所示实施例中的步骤，而在第二频率不小于第二预设频率的情况下，则可以直接在链路自适应参数集合中确定目标链路自适应参数。
可选地，所述链路自适应参数子集包括所述链路自适应参数集合中的多个连续的链路自适应参数，或包括所述链路自适应参数集合中的多个非连续的链路自适应参数。
在一个实施例中，在链路自适应参数集合中确定的链路自适应参数子集，可以是链路自适应参数集合中的连续多个链路自适应参数，也可以是为链路自适应参数集合中的非连续多个链路自适应参数。
以链路自适应参数包括调制编码策略为例，例如调制编码策略集合如表2所示：
索引 调制阶数 目标码率 频谱效率
0 2 120 0.2344
1 2 157 0.3066
2 2 193 0.3770
3 2 251 0.4902
4 2 308 0.6016
…… …… …… ……
29 2 reserved reserved
30 4 reserved reserved
31 6 reserved reserved
表2
其中包括MCS0至MCS31，共32个调制编码策略，那么调制编码策略子集，可以是其中链路的4个调制编码策略，例如MCS2、MCS3、MCS4和MCS5，也可以是其中非连续的4个调制编码策略，例如MCS1、MCS2、MCS3和MCS6，具体可以根据需要设置，也可以根据终端的历史信道状态信息来确定。
图12是根据本公开的实施例示出的一种链路自适应参数确定方法的示意流程图。本实施例所示的链路自适应参数确定方法可以适用于终端，所述终端可以作为用户设备与上述实施例所述的基站通信，例如5G NR基站，4G LTE基站等，所述终端包括但不限于手机、平板电脑、可穿戴设备、个人计算机、智能家具、工业传感器等，该终端的类型可以是NR-lite终端。
如图12所示，所述链路自适应参数确定方法可以包括以下步骤：
在步骤S201中，接收基站发送的用于指示链路自适应参数的指示信息；
在步骤S202中，根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数。
在一个实施例中，基站不必在链路自适应参数集合中确定需要指示给终端的目标链路自适应参数，而是可以从链路自适应参数集合中确定链路自适应参数子集，进 而在这链路自适应参数子集中选择目标链路自适应参数指示给终端。
终端在接收到指示信息之前，已经存储了指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，从而在接收到指示信息之后，可以根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数，也即确定基站所指示的目标链路自适应参数。
例如链路自适应参数为调制编码策略，基站所指示的目标链路自适应参数为MCS2，终端预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系为，MCS1对应指示信息00、MCS2对应指示信息01、MCS3对应指示信息10、MCS6对应指示信息11，若接收到的指示信息为01，则可以确定基站所指示的目标调制编码策略为MCS2。
图13是根据本公开的实施例示出的另一种链路自适应参数确定方法的示意流程图。如图13所示，所述链路自适应参数包括调制编码策略，所述根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数包括：
在步骤S2021中，根据预先存储的指示信息与调制编码策略集合中调制编码策略子集的第一关联关系，确定接收到的指示信息在所述调制编码策子集中对应的目标调制编码策略。
在一个实施例中，在链路自适应参数包括调制编码策略的情况下，终端可以预先存储指示信息与调制编码策略集合中调制编码策略子集的第一关联关系，进而根据该关联关系，确定接收到的指示信息在所述调制编码策略子集中对应的目标调制编码策略。
图14是根据本公开的实施例示出的又一种链路自适应参数确定方法的示意流程图。如图14所示，所述链路自适应参数包括下行信息的重复发送次数，所述根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数包括：
在步骤S2022中，根据预先存储的指示信息与重复发送次数集合中重复发送次数子集的第二关联关系，确定接收到的指示信息在所述重复发送次数子集中对应的目标重复发送次数。
在一个实施例中，在链路自适应参数包括重复发送次数的情况下，终端可以预先存储指示信息与重复发送次数集合中重复发送次数子集的第二关联关系，进而根据该关联关系，确定接收到的指示信息在所述重复发送次数子集中对应的目标重复发送次数。
图15是根据本公开的实施例示出的又一种链路自适应参数确定方法的示意流程图。如图15所示，所述链路自适应参数包括调制编码策略，以及下行信息的重复发送次数，所述根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数包括：
在步骤S2023中，获取所述指示信息与调制编码策略对应的第一部分指示信息，以及与重复发送次数对应的第二部分指示信息；
在步骤S2024中，根据预先存储的指示信息与调制编码策略的关联关系，确定所述第一部分指示信息对应的目标调制编码策略；
在步骤S2025中，根据调制编码策略与重复发送次数之间的第三关联关系确定所述目标调制编码策略对应的候选重复发送次数子集；
在步骤S2026中，根据预先存储的指示信息与所述候选重复发送次数子集的关联关系，确定所述第二部分指示信息在候选重复发送次数子集中对应的目标重复发送次数。
在一个实施例中，在链路自适应参数可以既包括调制编码策略，又包括下行信息的重复发送次数的情况下，调制编码策略与重复发送次数子集之间可以存在关联关系，本实施例将该关联关系称作第三关联关系，例如调制编码策略包括MCS1、MCS2、MCS3和MCS6，重复发送次数包括R1、R2、R3和R4，那么MCS1、MCS2、MCS3和MCS6与重复发送次数R1至R4之间的关联关系可以如上述表1所示。
终端可以接收基站发送的第三关联关系，或者预先存储该第三关联关系，终端在接收到指示信息后，可以根据预先存储了指示信息与调制编码策略之间的关联关系确定指示信息所指示的调制编码策略，而指示信息可以包括两部分，其中第一部分指示信息用于指示调制编码策略，第二部分指示信息用于指示重复发送次数。
例如指示信息包括3比特，具体可以为011，其中前两比特作为第一部分指示信息用于指示调制编码策略，最后一个比特作为第二部分指示信息用于指示重复传出 次数。例如根据01确定的调制编码策略可以为MCS1，进而可以根据第三关联关系查询MCS1对应的候选重复发送次数子集为R1和R2。
终端还预先存储了指示信息与重复发送次数之间的关联关系，可以先将重复发送次数子集中的重复发送次数按照特定规则排序，例如从小到大排序，那么此处指示信息与重复发送次数之间的关联关系，可以是指示信息与位于特定排序的重复发送次数之间的关联关系。
例如至少一个重复传输次数R1和R2中，R1较小，R2较大，R1排在R2之前，第三关联关系是指示信息0关联排序靠前的重复发送次数，指示信息1关联排序靠后的重复发送次数，那么在指示信息中最后一个比特为1的情况下，可以确定指示信息关联的重复发送次数为R2。据此，可以使得终端准确地确定调制编码策略和重复发送次数。
与前述的链路自适应参数指示方法和链路自适应参数确定方法的实施例相对应，本公开还提供了链路自适应参数指示装置和链路自适应参数确定装置的实施例。
图16是根据本公开的实施例示出的一种链路自适应参数指示装置的示意框图。本实施例所示的链路自适应参数指示装置可以适用于基站，例如5G NR基站，4G LTE基站等，所述基站可以与作为用户设备的终端进行通信，所述终端包括但不限于手机、平板电脑、可穿戴设备、个人计算机、智能家具、工业传感器等，该终端的类型可以是NR-lite终端。
如图16所示，所述链路自适应参数指示装置可以包括：
子集确定模块101，被配置为从链路自适应参数集合中确定链路自适应参数子集，所述链路自适应参数子集中包括至少一个链路自适应参数；
指示发送模块102，被配置为将用于指示所述目标链路自适应参数的指示信息发送给所述终端，其中所述目标链路自适应参数为所述链路自适应参数子集中的链路自适应参数。
图17是根据本公开的实施例示出的另一种链路自适应参数指示装置的示意框图。如图17所示，所述装置还包括：
子集发送模块103，被配置为将所述链路自适应参数子集发送至终端。
可选地，所述链路自适应参数包括调制编码策略，所述子集确定模块，被配置 为从调制编码策略集合中确定调制编码策略子集，所述调制编码策略子集中包括调制编码策略子集。
可选地，所述指示发送模块，被配置为根据指示信息与调制编码策略的第一关联关系，确定用于标识对应调制编码策略的指示信息，并将所述指示信息发送到所述终端。
可选地，所述链路自适应参数包括下行信息的重复发送次数，所述子集确定模块，被配置为在重复发送次数集合中确定重复发送次数子集，所述重复发送次数子集中包括至少一个重复发送次数。
可选地，所述指示发送模块，被配置为根据指示信息与重复发送次数的第二关联关系，确定用于标识对应重复发送次数的指示信息，并将所述指示信息发送到所述终端。
可选地，所述链路自适应参数包括调制编码策略和下行信息的重复发送次数，所述子集确定模块，被配置为在调制编码策略集合中确定调制编码策略子集，所述调制编码策略子集中至少包括一个调制编码策略；在重复发送次数集合中确定重复发送次数子集，所述重复发送次数子集中至少包括一个重复发送次数。
可选地，所述指示信息包括用于指示调制编码策略的第一部分指示信息和用于指示候选重复发生次数子集中的重复发生次数的第二部分指示信息；其中，所述候选重复发生次数为根据所述重复发生次数与所述调制编码策略之间的第三关联关系确定的。
图18是根据本公开的实施例示出的又一种链路自适应参数指示装置的示意框图。如图18所示，所述装置还包括：
状态记录模块104，被配置为记录终端的历史信道状态信息；
其中，所述子集确定模块101，被配置为在链路自适应参数集合中，确定与所述历史信道状态信息相匹配的至少一个链路自适应参数作为所述链路自适应参数子集。
图19是根据本公开的实施例示出的又一种链路自适应参数指示装置的示意框图。如图19所示，在所述至少一个链路自适应参数中确定目标链路自适应参数之前，所述装置还包括：
状态确定模块105，被配置为确定所述终端的当前信道状态信息；
其中，所述目标链路自适应参数为所述链路自适应参数子集中与所述当前状态信息相匹配的链路自适应参数。
可选地，所述子集确定模块101，被配置为在所述终端的类型属于预设类型的情况下，或在所述终端的位置变化的第一频率小于第一预设频率的情况下，或在所述终端的历史信道状态信息变化的第二频率小于第二预设频率的情况下，从链路自适应参数集合中确定链路自适应参数子集。
可选地，所述至少一个链路自适应参数为所述链路自适应参数集合中的连续多个链路自适应参数，或为所述链路自适应参数集合中的非连续多个链路自适应参数。
图20是根据本公开的实施例示出的一种链路自适应参数确定装置的示意框图。本实施例所示的链路自适应参数确定装置可以适用于终端，所述终端可以作为用户设备与上述实施例所述的基站通信，例如5G NR基站，4G LTE基站等，所述终端包括但不限于手机、平板电脑、可穿戴设备、个人计算机、智能家具、工业传感器等，该终端的类型可以是NR-lite终端。
如图20所示，所述链路自适应参数确定装置可以包括：
指示接收模块201，被配置为接收基站发送的用于指示链路自适应参数的指示信息；
子集确定模块202，被配置为根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数。
可选地，所述链路自适应参数包括调制编码策略，所述子集确定模块，被配置为根据预先存储的指示信息与调制编码策略集合中调制编码策略子集的第一关联关系，确定接收到的指示信息在所述调制编码策子集中对应的目标调制编码策略。
可选地，所述链路自适应参数包括下行信息的重复发送次数，所述子集确定模块，被配置为根据预先存储的指示信息与重复发送次数集合中重复发送次数子集的第二关联关系，确定接收到的指示信息在所述重复发送次数子集中对应的目标重复发送次数。
图21是根据本公开的实施例示出的一种子集确定模块的示意框图。如图21所 示，所述链路自适应参数包括调制编码策略，以及下行信息的重复发送次数，所述子集确定模块202包括：
指示获取子模块2021，被配置为获取所述指示信息与调制编码策略对应的第一部分指示信息，以及与重复发送次数对应的第二部分指示信息；
策略确定子模块2022，被配置为根据预先存储的指示信息与调制编码策略的关联关系，确定所述第一部分指示信息对应的目标调制编码策略；
候选确定子模块2023，被配置为根据调制编码策略与重复发送次数之间的第三关联关系确定所述目标调制编码策略对应的候选重复发送次数子集；
次数确定子模块2024，被配置为根据预先存储的指示信息与所述候选重复发送次数子集的关联关系，确定所述第二部分指示信息在候选重复发送次数子集中对应的目标重复发送次数。
关于上述实施例中的装置，其中各个模块执行操作的具体方式已经在相关方法的实施例中进行了详细描述，此处将不做详细阐述说明。
对于装置实施例而言，由于其基本对应于方法实施例，所以相关之处参见方法实施例的部分说明即可。以上所描述的装置实施例仅仅是示意性的，其中所述作为分离部件说明的模块可以是或者也可以不是物理上分开的，作为模块显示的部件可以是或者也可以不是物理模块，即可以位于一个地方，或者也可以分布到多个网络模块上。可以根据实际的需要选择其中的部分或者全部模块来实现本实施例方案的目的。本领域普通技术人员在不付出创造性劳动的情况下，即可以理解并实施。
本公开的实施例还提出了一种电子设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为实现上述任一实施例所述的链路自适应参数指示方法。
本公开的实施例还提出了一种电子设备，包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为实现上述任一实施例所述的链路自适应参数确定方法。
本公开的实施例还提出了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述任一实施例所述的链路自适应参数指示方法中的步骤。
本公开的实施例还提出了一种计算机可读存储介质，其上存储有计算机程序，该程序被处理器执行时实现上述任一实施例所述的链路自适应参数确定方法中的步骤。
如图22所示，图22是根据本公开的实施例示出的一种用于链路自适应参数确定的装置2200的示意框图。装置2200可以被提供为一基站。参照图22，装置2200包括处理组件2222、无线发射/接收组件2224、天线组件2226、以及无线接口特有的信号处理部分，处理组件2222可进一步包括一个或多个处理器。处理组件2222中的其中一个处理器可以被配置为实现上述任一实施例所述的链路自适应参数确定方法。
图23是根据本公开的实施例示出的一种用于链路自适应参数指示的装置2300的示意框图。例如，装置2300可以是移动电话，计算机，数字广播终端，消息收发设备，游戏控制台，平板设备，医疗设备，健身设备，个人数字助理等。
参照图23，装置2300可以包括以下一个或多个组件：处理组件2302，存储器2304，电源组件2306，多媒体组件2308，音频组件2310，输入/输出(I/O)的接口2312，传感器组件2314，以及通信组件2316。
处理组件2302通常控制装置2300的整体操作，诸如与显示，电话呼叫，数据通信，相机操作和记录操作相关联的操作。处理组件2302可以包括一个或多个处理器2320来执行指令，以完成上述的链路自适应参数指示方法的全部或部分步骤。此外，处理组件2302可以包括一个或多个模块，便于处理组件2302和其他组件之间的交互。例如，处理组件2302可以包括多媒体模块，以方便多媒体组件2308和处理组件2302之间的交互。
存储器2304被配置为存储各种类型的数据以支持在装置2300的操作。这些数据的示例包括用于在装置2300上操作的任何应用程序或方法的指令，联系人数据，电话簿数据，消息，图片，视频等。存储器2304可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，如静态随机存取存储器(SRAM)，电可擦除可编程只 读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，可编程只读存储器(PROM)，只读存储器(ROM)，磁存储器，快闪存储器，磁盘或光盘。
电源组件2306为装置2300的各种组件提供电力。电源组件2306可以包括电源管理系统，一个或多个电源，及其他与为装置2300生成、管理和分配电力相关联的组件。
多媒体组件2308包括在所述装置2300和用户之间的提供一个输出接口的屏幕。在一些实施例中，屏幕可以包括液晶显示器(LCD)和触摸面板(TP)。如果屏幕包括触摸面板，屏幕可以被实现为触摸屏，以接收来自用户的输入信号。触摸面板包括一个或多个触摸传感器以感测触摸、滑动和触摸面板上的手势。所述触摸传感器可以不仅感测触摸或滑动动作的边界，而且还检测与所述触摸或滑动操作相关的持续时间和压力。在一些实施例中，多媒体组件2308包括一个前置摄像头和/或后置摄像头。当装置2300处于操作模式，如拍摄模式或视频模式时，前置摄像头和/或后置摄像头可以接收外部的多媒体数据。每个前置摄像头和后置摄像头可以是一个固定的光学透镜系统或具有焦距和光学变焦能力。
音频组件2310被配置为输出和/或输入音频信号。例如，音频组件2310包括一个麦克风(MIC)，当装置2300处于操作模式，如呼叫模式、记录模式和语音识别模式时，麦克风被配置为接收外部音频信号。所接收的音频信号可以被进一步存储在存储器2304或经由通信组件2316发送。在一些实施例中，音频组件2310还包括一个扬声器，用于输出音频信号。
I/O接口2312为处理组件2302和外围接口模块之间提供接口，上述外围接口模块可以是键盘，点击轮，按钮等。这些按钮可包括但不限于：主页按钮、音量按钮、启动按钮和锁定按钮。
传感器组件2314包括一个或多个传感器，用于为装置2300提供各个方面的状态评估。例如，传感器组件2314可以检测到装置2300的打开/关闭状态，组件的相对定位，例如所述组件为装置2300的显示器和小键盘，传感器组件2314还可以检测装置2300或装置2300一个组件的位置改变，用户与装置2300接触的存在或不存在，装置2300方位或加速/减速和装置2300的温度变化。传感器组件2314可以包括接近传感器，被配置用来在没有任何的物理接触时检测附近物体的存在。传感器组件2314还可以包括光传感器，如CMOS或CCD图像传感器，用于在成像应用中使用。在一些实施例中，该传感器组件2314还可以包括加速度传感器，陀螺仪传感器，磁传感器， 压力传感器或温度传感器。
通信组件2316被配置为便于装置2300和其他设备之间有线或无线方式的通信。装置2300可以接入基于通信标准的无线网络，如WiFi，2G或3G，4G LTE、5G NR或它们的组合。在一个示例性实施例中，通信组件2316经由广播信道接收来自外部广播管理系统的广播信号或广播相关信息。在一个示例性实施例中，所述通信组件2316还包括近场通信(NFC)模块，以促进短程通信。例如，在NFC模块可基于射频识别(RFID)技术，红外数据协会(IrDA)技术，超宽带(UWB)技术，蓝牙(BT)技术和其他技术来实现。
在示例性实施例中，装置2300可以被一个或多个应用专用集成电路(ASIC)、数字信号处理器(DSP)、数字信号处理设备(DSPD)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、控制器、微控制器、微处理器或其他电子元件实现，用于执行上述链路自适应参数指示方法。
在示例性实施例中，还提供了一种包括指令的非临时性计算机可读存储介质，例如包括指令的存储器2304，上述指令可由装置2300的处理器2320执行以完成上述链路自适应参数指示方法。例如，所述非临时性计算机可读存储介质可以是ROM、随机存取存储器(RAM)、CD-ROM、磁带、软盘和光数据存储设备等。
本领域技术人员在考虑说明书及实践这里公开的公开后，将容易想到本公开的其它实施方案。本公开旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。
需要说明的是，在本文中，诸如第一和第二等之类的关系术语仅仅用来将一个实体或者操作与另一个实体或操作区分开来，而不一定要求或者暗示这些实体或操作之间存在任何这种实际的关系或者顺序。术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者设备不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方 法、物品或者设备所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括所述要素的过程、方法、物品或者设备中还存在另外的相同要素。
以上对本公开实施例所提供的方法和装置进行了详细介绍，本文中应用了具体个例对本公开的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本公开的方法及其核心思想；同时，对于本领域的一般技术人员，依据本公开的思想，在具体实施方式及应用范围上均会有改变之处，综上所述，本说明书内容不应理解为对本公开的限制。

Claims (22)

  1. 一种链路自适应参数指示方法，其特征在于，包括：
    从链路自适应参数集合中确定链路自适应参数子集，所述链路自适应参数子集中包括至少一个链路自适应参数；
    将用于指示所述目标链路自适应参数的指示信息发送给所述终端，其中所述目标链路自适应参数为所述链路自适应参数子集中的链路自适应参数。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    将所述链路自适应参数子集发送至终端。
  3. 根据权利要求1所述的方法，其特征在于，所述链路自适应参数包括调制编码策略，所述从链路自适应参数集合中确定链路自适应参数子集包括：
    从调制编码策略集合中确定调制编码策略子集，所述调制编码策略子集中包括至少一个调制编码策略。
  4. 根据权利要求3所述的方法，其特征在于，所述将用于指示所述目标链路自适应参数的指示信息发送给所述终端包括：
    根据指示信息与调制编码策略的第一关联关系，确定用于标识对应调制编码策略的指示信息，并将所述指示信息发送到所述终端。
  5. 根据权利要求1所述的方法，其特征在于，所述链路自适应参数包括下行信息的重复发送次数，所述从链路自适应参数集合中确定链路自适应参数子集包括：
    在重复发送次数集合中确定重复发送次数子集，所述重复发送次数子集中包括至少一个重复发送次数。
  6. 根据权利要求5所述的方法，其特征在于，所述从链路自适应参数集合中确定链路自适应参数子集包括：
    根据指示信息与重复发送次数的第二关联关系，确定用于标识对应重复发送次数的指示信息，并将所述指示信息发送到所述终端。
  7. 根据权利要求1所述的方法，其特征在于，所述链路自适应参数包括调制编码策略和下行信息的重复发送次数，所述从链路自适应参数集合中确定链路自适应参数子集包括：
    在调制编码策略集合中确定调制编码策略子集，所述调制编码策略子集中至少包括一个调制编码策略；在重复发送次数集合中确定重复发送次数子集，所述重复发送次数子集中至少包括一个重复发送次数。
  8. 根据权利要求7述的方法，其特征在于，所述指示信息包括用于指示调制编码 策略的第一部分指示信息和用于指示候选重复发生次数子集中的重复发生次数的第二部分指示信息；其中，所述候选重复发生次数为根据所述重复发生次数与所述调制编码策略之间的第三关联关系确定的。
  9. 根据权利要求1至8中任一项所述的方法，其特征在于，所述方法还包括：
    记录终端的历史信道状态信息；
    其中，所述从链路自适应参数集合中确定链路自适应参数子集包括：
    在所述链路自适应参数集合中，确定与所述历史信道状态信息相匹配的至少一个链路自适应参数作为所述链路自适应参数子集。
  10. 根据权利要求1至8中任一项所述的方法，其特征在于，所述方法还包括：
    确定所述终端的当前信道状态信息；
    其中，所述目标链路自适应参数为所述链路自适应参数子集中与所述当前状态信息相匹配的链路自适应参数。
  11. 根据权利要求1至8中任一项所述的方法，其特征在于，所述从链路自适应参数集合中确定链路自适应参数子集包括：
    在所述终端的类型属于预设类型的情况下，或在所述终端的位置变化的第一频率小于第一预设频率的情况下，或在所述终端的历史信道状态信息变化的第二频率小于第二预设频率的情况下，从链路自适应参数集合中确定链路自适应参数子集。
  12. 根据权利要求1至8中任一项所述的方法，其特征在于，所述链路自适应参数子集包括所述链路自适应参数集合中的多个连续的链路自适应参数，或包括所述链路自适应参数集合中的多个非连续的链路自适应参数。
  13. 一种链路自适应参数确定方法，其特征在于，包括：
    接收基站发送的用于指示链路自适应参数的指示信息；
    根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数。
  14. 根据权利要求13所述的方法，其特征在于，所述链路自适应参数包括调制编码策略，所述根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数包括：
    根据预先存储的指示信息与调制编码策略集合中调制编码策略子集的第一关联关系，确定接收到的指示信息在所述调制编码策子集中对应的目标调制编码策略。
  15. 根据权利要求13所述的方法，其特征在于，所述链路自适应参数包括下行信 息的重复发送次数，所述根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数包括：
    根据预先存储的指示信息与重复发送次数集合中重复发送次数子集的第二关联关系，确定接收到的指示信息在所述重复发送次数子集中对应的目标重复发送次数。
  16. 根据权利要求13所述的方法，其特征在于，所述链路自适应参数包括调制编码策略，以及下行信息的重复发送次数，所述根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数包括：
    获取所述指示信息与调制编码策略对应的第一部分指示信息，以及与重复发送次数对应的第二部分指示信息；
    根据预先存储的指示信息与调制编码策略的关联关系，确定所述第一部分指示信息对应的目标调制编码策略；
    根据调制编码策略与重复发送次数之间的第三关联关系确定所述目标调制编码策略对应的候选重复发送次数子集；
    根据预先存储的指示信息与所述候选重复发送次数子集的关联关系，确定所述第二部分指示信息在候选重复发送次数子集中对应的目标重复发送次数。
  17. 一种链路自适应参数指示装置，其特征在于，包括：
    子集确定模块，被配置为从链路自适应参数集合中确定链路自适应参数子集，所述链路自适应参数子集中包括至少一个链路自适应参数；
    指示发送模块，被配置为将用于指示所述目标链路自适应参数的指示信息发送给所述终端，其中所述目标链路自适应参数为所述链路自适应参数子集中的链路自适应参数。
  18. 一种链路自适应参数确定装置，其特征在于，包括：
    指示接收模块，被配置为接收基站发送的用于指示链路自适应参数的指示信息；
    子集确定模块，被配置为根据预先存储的指示信息与链路自适应参数集合中链路自适应参数子集的关联关系，确定接收到的指示信息在所述链路自适应参数子集中对应的目标链路自适应参数。
  19. 一种电子设备，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为实现权利要求1至12中任一项所述的链路自适应参数指示方法。
  20. 一种电子设备，其特征在于，包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为实现权利要求13至16中任一项所述的链路自适应参数确定方法。
  21. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现权利要求1至12中任一项所述的链路自适应参数指示方法中的步骤。
  22. 一种计算机可读存储介质，其上存储有计算机程序，其特征在于，该程序被处理器执行时实现权利要求13至16中任一项所述的链路自适应参数确定方法中的步骤。
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