WO2020200053A1 - 一种数据传输方法及装置 - Google Patents
一种数据传输方法及装置 Download PDFInfo
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- WO2020200053A1 WO2020200053A1 PCT/CN2020/081509 CN2020081509W WO2020200053A1 WO 2020200053 A1 WO2020200053 A1 WO 2020200053A1 CN 2020081509 W CN2020081509 W CN 2020081509W WO 2020200053 A1 WO2020200053 A1 WO 2020200053A1
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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
- H04L1/0002—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
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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
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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
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
Definitions
- This application relates to the field of mobile communication technology, and in particular to a data transmission method and device.
- network equipment In the process of mobile communication, network equipment (such as base stations) will send downlink control information (DCI) to user equipment (UE) (such as terminals).
- DCI downlink control information
- UE user equipment
- the DCI can be carried on a physical downlink control channel. PDCCH
- the DCI can be used to indicate the information of the data channel.
- the data channel here is, for example, a physical downlink shared channel (PUSCH) used to carry uplink data, or a physical downlink shared channel (PUSCH) used to carry downlink data ( physical downlink shared channel, PDSCH).
- the DCI can also be used to indicate the modulation and coding scheme (MCS) adopted by the data channel, so that the user equipment can determine the MCS according to the DCI to achieve correct data reception.
- MCS modulation and coding scheme
- the high-priority services include ultra-reliable and low-latency communications (URLLC) services, etc.
- URLLC ultra-reliable and low-latency communications
- modulation and Coding scheme cell radio network temporary identification modulation and coding scheme-cell radio network template identity, MCS-C-RNTI
- newly defined wireless network temporary identification such as high-priority cell wireless network temporary identification Higher-priority-C- RNTI, or referred to as URLLC-C-RNTI for extremely reliable and extremely low-latency wireless network temporary identification.
- the original method of determining the MCS based on the DCI will no longer be applicable, and the user equipment cannot accurately determine the MCS, resulting in failure of data reception.
- the present application provides a data transmission method and device, which are used to implement MCS determination when the DCI is scrambled by a newly introduced physical layer identifier.
- this application provides a data transmission method, which can be implemented by a terminal device (which may also be referred to as a terminal device in this application).
- the terminal device can receive the first information, and determine the modulation and coding scheme MCS table used by the data according to the scrambling identification and target information of the first information, and the first information is used to schedule the data.
- the scrambling identifier of the first information is the modulation and coding scheme cell radio network temporary identifier MCS-C-RNTI or the high-priority cell radio network temporary identifier Higher-priority-C-RNTI, and the Higher-priority-C-RNTI is used To identify that the first information is used for scheduling high-priority data.
- receiving or sending the data, and the MCS used by the data is determined according to the first information and the MCS table.
- the terminal device can determine the MCS table used for the data according to the scrambling identifier and target information of the first information, and according to the table And the first information can determine the MCS used by the data, so that the MCS can be determined.
- the target information may include at least one of the following information: the format of the first information; or, the search space where the first information is located; or, the second information, the second information It is used to indicate the MCS table; or, the value of the bit field in the first information, and the value of the bit field is used to indicate the priority of the data. Therefore, the flexible indication of the MCS table can be realized according to the first information and any of the above target information.
- the target information may include the format of the first information.
- the terminal device may determine that the MCS table is the first MCS table; and/or, if the format of the first information is the second DCI format, the terminal device It can be determined that the MCS table is a second MCS table; wherein, the first DCI format and the second DCI format are different, and the first MCS table and the second MCS table are different.
- the target information includes the information of the search space where the first information is located, and the modulation and coding scheme used by the data is determined according to the scrambling identifier of the first information and the target information.
- the terminal device may determine that the MCS table is the second MCS table; and/or, if the search space where the first information is located The space is a common search space, and the terminal device may determine that the MCS table is a first MCS table, where the first MCS table and the second MCS table are different.
- the target information includes the information of the search space where the first information is located, and the modulation and coding scheme MCS table used by the data is determined according to the scrambling identifier of the first information and the target information. If the index of the search space is greater than or equal to the index threshold, the terminal device may determine that the MCS table used by the data is the second MCS table; and/or, if the index of the search space is less than the index threshold, The terminal device may determine that the MCS table is a first MCS table, where the first MCS table and the second MCS table are different.
- the target information includes second information
- the second information is used to indicate the MCS table
- the data usage is determined according to the scrambled identifier of the first information and the target information. If the second information indicates the second MCS table, the terminal device may determine that the MCS table is the second MCS table; and/or, if the second information indicates The first MCS table, the terminal device may determine that the MCS table is the first MCS table, where the first MCS table and the second MCS table are different.
- the terminal device may use a default MCS table as the MCS table.
- This default MCS form can be the first MCS form or the second MCS form. Thereby the MCS table can be determined more flexibly.
- the second information may be configuration information carried in higher layer signaling.
- the target information includes the value of the bit field in the first information
- the modulation and coding scheme used by the data is determined according to the scrambling identifier of the first information and the target information.
- the terminal device may determine that the MCS table is the first MCS table; and/or if the first information If the value of the middle bit field is greater than the first threshold, the terminal device may determine that the MCS table is the second MCS table, where the first MCS table and the second MCS table are different.
- the target information includes the value of the bit field in the first information
- the modulation and coding scheme used by the data is determined according to the scrambling identifier of the first information and the target information.
- the terminal device may determine that the MCS table is the first MCS table; and/or if the first information
- the value of the middle bit field is less than the second threshold, and the terminal device may determine that the MCS table is the second MCS table, where the first MCS table and the second MCS table are different.
- the first threshold and the second threshold may be the same or different.
- Network equipment and terminal equipment can use any of the methods described in the above design to determine the MCS table, which can agree on the MCS table determination method between the network equipment and the terminal equipment, and avoid the difference in the MCS table determined by the network equipment and the terminal equipment. As a result, the data cannot be received.
- it compared to directly using a certain MCS table, it can switch between multiple MCS tables according to the scrambling identifier and target information of the first information, so as to achieve different reliability requirements for data with different business priorities. Thereby improving resource utilization.
- the above methods can be selected or used in combination when indicating the MCS form, so as to realize the flexible indication of the MCS form.
- the first information may include an MCS indication field, which may include N bits, where N is less than log 2 M, M is the number of MCS in the MCS table, M is a positive integer, and N is Non-negative integer.
- the terminal device may also determine the MCS used by the data from the MCS table according to the MCS indication field. Therefore, the length of the MCS indication field in the first information can be reduced to reduce the number of DCI bits. In the case that the DCI occupies the same time-frequency resource, the transmission code rate can be reduced to achieve the purpose of improving the reliability of DCI transmission.
- the terminal device when determining the MCS used by the data from the MCS table according to the MCS indication field, if the value of the MCS indication field is m, the terminal device may determine The MCS used by the data is the n+m+1th MCS in the MCS table; or, if the value of the MCS indication field is m, the terminal device may determine that the MCS used by the data is the The m*n+1th MCS in the MCS table, where m and n are non-negative integers.
- the value of n may be indicated by the network device through the third information.
- the third information may be configuration information carried in higher layer signaling.
- the terminal device may also determine the MCS used by the data from the 2 N candidate MCSs in the MCS table, where N is a positive integer. Among them, 2 N candidate MCSs are pre-configured. Alternatively, the 2 N candidate MCSs are indicated by the network device 102 through configuration information. At this time, the terminal device may also receive fourth information from the network device, and the fourth information is used to indicate the candidate MCSs.
- the fourth information may be configuration information carried in higher layer signaling.
- the number 2 ⁇ N can be alternatively MCS MCS table index of 2 N successive alternate MCS.
- the 2 N candidate MCSs may be MCSs with discontinuous indexes in the MCS table, and the index difference between two adjacent candidate MCSs is the same, for example, between two adjacent candidate MCSs The index difference is 2.
- the spectral efficiency of the above-mentioned first MCS table is higher than the spectral efficiency of the above-mentioned second MCS table, so the transmission reliability of the data transmitted by the above second MCS table is higher.
- the first MCS table is an MCS table with a highest modulation and coding mode of 64QAM and relatively high spectral efficiency, such as Table 1 defined by the protocol.
- the second MCS table is the MCS table with the highest modulation and coding mode of 64QAM and relatively low spectral efficiency, such as Table 3 defined by the protocol.
- the above method can also be implemented by network equipment.
- the network device can send the above first information, and receive or send data, where the first information is used to schedule the data, and the scrambling identifier of the first information is a modulation and coding scheme.
- Cell wireless network The temporary identifier MCS-C-RNTI or the high-priority cell radio network temporary identifier Higher-priority-C-RNTI, the Higher-priority-C-RNTI is used to identify that the first information is used for scheduling high-priority data.
- the MCS used by the data is determined according to the first information and the MCS table.
- the target information may include at least one of the following information: the format of the first information; or, the search space where the first information is located; or, the second information, the second information It is used to indicate the MCS table; or, the value of the bit field in the first information, and the value of the bit field is used to indicate the priority of the data. Therefore, the flexible indication of the MCS table can be realized according to the first information and any of the above target information.
- the target information may include the format of the first information. If the format of the first information is the first DCI format, the MCS table may be the first MCS table; and/or, If the format of the first information is a second DCI format, the MCS table may be a second MCS table; wherein, the first DCI format and the second DCI format are different, and the first MCS table and the second MCS table The table is different.
- the target information includes information about the search space where the first information is located. If the search space where the first information is located is a user-specific search space, the MCS table may be the second MCS table; and/or, if the search space where the first information is located is a common search space, the MCS table may be a first MCS table, wherein the first MCS table and the second MCS table are different.
- the target information includes information about the search space where the first information is located, and if the index of the search space is greater than or equal to an index threshold, the MCS table used by the data may be the second MCS table; And/or, if the index of the search space is less than an index threshold, the MCS table may be a first MCS table, wherein the first MCS table and the second MCS table are different.
- the target information includes second information, and the second information is used to indicate the MCS table. If the second information indicates the second MCS table, the MCS table may be the A second MCS table; and/or, if the second information indicates a first MCS table, the MCS table may be the first MCS table, wherein the first MCS table and the second MCS table are different.
- the terminal device may also use a default MCS table as the MCS table.
- This default MCS form can be the first MCS form or the second MCS form.
- the MCS table can be indicated more flexibly.
- the second information may be configuration information carried in higher layer signaling.
- the target information includes the value of the bit field in the first information. If the value of the bit field in the first information is less than or equal to the first threshold, the MCS table may Is the first MCS table; and/or, if the value of the bit field in the first information is greater than the first threshold, the MCS table may be a second MCS table, wherein the first MCS table and the first MCS table Two MCS forms are different.
- the target information includes the value of the bit field in the first information, and if the value of the bit field in the first information is greater than or equal to a second threshold, the MCS table may Is the first MCS table; and/or, if the value of the bit field in the first information is less than the second threshold, the MCS table may be the second MCS table, wherein the first MCS table and the second MCS table Two MCS forms are different.
- the first threshold and the second threshold may be the same or different.
- the first information may include an MCS indication field, which may include N bits, where N is less than log 2 M, M is the number of MCS in the MCS table, M is a positive integer, and N is Non-negative integer.
- the MCS indication field can be used to indicate the MCS used by the data from the MCS table. Therefore, the length of the MCS indication field in the first information can be reduced to reduce the code rate.
- the MCS used by the data may be the n+m+1th MCS in the MCS table; or, if the MCS indicates The value of the field is m, the MCS used by the data may be the m*n+1th MCS in the MCS table, where m and n are non-negative integers.
- the network device may also send third information to the terminal device, where the third information is used to indicate the value of n.
- the third information may be configuration information carried in higher layer signaling.
- the MCS indication field may also be used to indicate the MCS used by the data from 2 ⁇ N candidate MCSs in the MCS table, where N is a positive integer.
- N is a positive integer.
- 2 N candidate MCSs are pre-configured.
- the 2 N candidate MCSs are indicated by the network device 102 through configuration information.
- the network device may also send fourth information to the terminal device, where the fourth information is used to indicate the candidate MCSs.
- the fourth information may be configuration information carried in higher layer signaling.
- the MCS table may be the MCS index of 2 N successive alternate MCS.
- the 2 N candidate MCSs may be MCSs with discontinuous indexes in the MCS table, and the index difference between two adjacent candidate MCSs is the same, for example, between two adjacent candidate MCSs The index difference is 2.
- the above-mentioned first MCS table may be a high spectrum efficiency MCS table with the highest modulation mode of 64QAM, and the name or logo of the first MCS table may be recorded as'qam64HighSE'.
- the above-mentioned second MCS table may be a low spectrum efficiency MCS table with the highest modulation mode of 64QAM, and the name or logo of the second MCS table may be recorded as'qam64LowSE'.
- this application provides a data transmission method.
- the terminal device can receive first information, which can be used to schedule data, and the value of the bit field in the first information is used to indicate the priority of the data.
- the terminal device may also determine the MCS table used by the data according to the value of the bit field, and receive or send the data, where the MCS used by the data is determined according to the first information and the MCS table.
- the terminal device can determine the MCS table used by the data according to the value of the bit field in the first information, and according to the MCS table and the first information One piece of information can determine the MCS used by the data, so that the MCS can be determined.
- the terminal device may determine that the MCS table is the first MCS table when the value of the bit field in the first information is less than or equal to the first threshold; and/or, the terminal device may When the value of the bit field in the first information is greater than the first threshold, it is determined that the MCS table is the second MCS table.
- the terminal device may determine that the MCS table is the first MCS table when the value of the bit field in the first information is greater than or equal to the second threshold; and/or, the terminal device may When the value of the bit field in the first information is less than the second threshold, it is determined that the MCS table is the second MCS table.
- the method can also be executed by a network device.
- the network device can send first information, the first information can be used to schedule data, the value of the bit field in the first information is used to indicate the priority of the data, and the value of the bit field can also be used to determine the data used MCS form.
- the network device may also receive or send the data, where the MCS used by the data is determined according to the first information and the MCS table.
- the MCS table when the value of the bit field in the first information is less than or equal to the first threshold, the MCS table may be the first MCS table; and/or, in the first information When the value of the bit field is greater than the first threshold, the MCS table may be a second MCS table.
- the MCS table when the value of the bit field in the first information is greater than or equal to the second threshold, the MCS table may be the first MCS table; and/or, in the first information When the value of the bit field is smaller than the second threshold, the MCS table may be a second MCS table.
- the above-mentioned first MCS table may be a high spectrum efficiency MCS table with the highest modulation mode of 64QAM, and the name or logo of the first MCS table may be recorded as'qam64HighSE'.
- the above-mentioned second MCS table may be a low spectrum efficiency MCS table with the highest modulation mode of 64QAM, and the name or logo of the second MCS table may be recorded as'qam64LowSE'.
- the present application provides a communication device, which can be used to implement any possible design of the first aspect or the first aspect, or any possible design of the second aspect or the second aspect.
- the communication device can implement the functions in the above-mentioned methods in the form of a hardware structure, a software module, or a hardware structure plus a software module.
- the communication device may include a communication module, a processing module, and a data transmission module that are coupled to each other.
- the communication device may include a transceiver, a memory, a processor, etc. coupled with each other.
- the communication module of the communication device can be used to receive first information, the first information is used for scheduling data, and the scrambling identifier of the first information is the modulation and coding scheme. Identifies the MCS-C-RNTI or the high-priority cell radio network temporary identifier Higher-priority-C-RNTI, and the Higher-priority-C-RNTI is used to identify that the first information is used for scheduling high-priority data.
- the processing module can be used to determine the modulation and coding scheme MCS table used by the data according to the scrambling identification and target information of the first information.
- the data transmission module can be used to receive or send the data, wherein the MCS used for the data is determined according to the first information and the MCS table.
- the target information may include the format of the first information, the search space where the first information is located, the second information, or part or all of the value of the bit field in the first information, where the bit The value of the field can be used to indicate the priority of the data.
- the processing module when determining the modulation and coding scheme MCS table used by the data according to the scrambling identifier of the first information and the target information, the processing module can be located at all When the format of the first information is the first DCI format, determine that the MCS table is the first MCS table; and/or, when the format of the first information is the second DCI format, the processing module may determine that the MCS table is The second MCS form.
- the processing module may determine that the MCS table is the second MCS table when the search space where the first information is located is a user-specific search space; and/or, the processing module may determine that the search space where the first information is located is a common search space At this time, it is determined that the MCS table is the first MCS table.
- processing The module may determine that the MCS table used by the data is the second MCS table when the index of the search space is greater than or equal to the index threshold; and/or, the processing module may determine that the index of the search space is less than the index threshold
- the MCS form is the first MCS form.
- the processing module can be in the second When the information indicates the second MCS table, determine that the MCS table is the second MCS table; and/or, the processing module may determine that the MCS table is the first MCS when the second information indicates the first MCS table form.
- the processing module may determine a default MCS form as the MCS form.
- the default MCS form may be the first MCS form or The second MCS form.
- the second information may be configuration information carried in higher layer signaling.
- the processing module may determine that the MCS table is the first MCS table when the value is less than or equal to the first threshold; and/or, the processing module may determine the MCS table when the value is greater than the first threshold It is the second MCS form.
- the processing module may determine that the MCS table is the first MCS table when the value is greater than or equal to the second threshold; and/or the processing module may determine the MCS table when the value is less than the second threshold It is the second MCS form.
- the first information may also include an MCS indicator field
- the MCS indicator field includes N bits, N is less than log 2 M, M is the number of MCS in the MCS table, M is a positive integer, and N It is a non-negative integer
- the processing module can also be used to determine the MCS used by the data from the MCS table according to the MCS indication field, so that the data can be received and sent according to the MCS.
- the processing module when determining the MCS, if the value of the MCS indication field is m, the processing module may use the n+m+1th MCS in the MCS table as the MCS, or the processing module may The n*m+1th MCS in the MCS table is used as the MCS. Among them, m and n are non-negative integers.
- the value of n may be pre-configured, or the communication module may also be used to receive third information used to indicate the value of n.
- the third information may be configuration information carried in higher layer signaling.
- the processing module may also determine the MCS used by the data from the 2 N candidate MCSs in the MCS table according to the MCS indication field, where N is a positive integer. Among them, 2 N candidate MCSs are pre-configured. Alternatively, the 2 N candidate MCSs are indicated by the network device through configuration information. At this time, the communication module may also be used to receive fourth information sent by the network device, where the fourth information is used to indicate the candidate MCS.
- the fourth information may be configuration information carried in higher layer signaling.
- the MCS table may be the MCS index of 2 N successive alternate MCS.
- the 2 N candidate MCSs may be MCSs with discontinuous indexes in the MCS table, and the index difference between two adjacent candidate MCSs is the same, for example, between two adjacent candidate MCSs The index difference is 2.
- the communication module of the communication device can be used to receive first information, the first information is used for scheduling data, and the value of the bit field in the first information is used to indicate the priority of the data. level.
- the processing module may be used to determine the MCS table used by the data according to the value of the bit field in the first information; the value of the bit field is used to indicate the priority of the service to which the data belongs.
- the data transmission module can be used to receive or send the data, where the MCS used for the data is determined by the information and the MCS table by decomposing the place.
- the processing module when determining the MCS table used by the data according to the value of the bit field in the first information, the processing module may be specifically configured to specify that the value of the bit field in the first information is less than or equal to the first information.
- a threshold value determine that the MCS table is the first MCS table; and/or, when the value of the bit field in the first information is greater than the first threshold value, the processing module determines that the MCS table is the second MCS form.
- the processing module when determining the MCS table used by the data according to the value of the bit field in the first information, the processing module may be specifically configured to specify that the value of the bit field in the first information is greater than or equal to the first information.
- the threshold is two, determine that the MCS table is the first MCS table; and/or, when the value of the bit field in the first information is less than the second threshold, the processing module determines that the MCS table is the second MCS form.
- the steps executed by the above processing module may be executed by the processor, and the steps executed by the above communication module and/or the data transmission module may be executed by the transceiver.
- this application provides a communication device that can be used to implement any possible design of the first aspect or the first aspect, or any possible design of the second aspect or the second aspect.
- the communication device can implement the functions in the above-mentioned methods in the form of a hardware structure, a software module, or a hardware structure plus a software module.
- the communication device may include a communication module and a data transmission module coupled with each other.
- the communication device may include a transceiver, a memory, a processor, etc. coupled with each other.
- the communication module of the communication device can be used to send first information, the first information is used for scheduling data, and the scrambling identifier of the first information is the modulation and coding scheme. Identifies the MCS-C-RNTI or the high-priority cell radio network temporary identifier Higher-priority-C-RNTI, and the Higher-priority-C-RNTI is used to identify that the first information is used for scheduling high-priority data.
- the data transmission module can be used to receive or send the data, where the scrambling identifier and target information of the first information are used to determine the MCS table used by the data, and the MCS used by the data is determined according to the first information and the MCS table .
- the target information may include the format of the first information, the search space where the first information is located, the second information, or part or all of the value of the bit field in the first information, where the bit The value of the field can be used to indicate the priority of the data.
- the MCS table may be the first MCS table; and/or, if the first information If the format is the second DCI format, the MCS table may be the second MCS table.
- the MCS table may be the second MCS table and/or, when the search space where the first information is located is a common search space, the MCS table may be the first MCS table.
- the MCS table used by the data when the index of the search space is greater than or equal to the index threshold, the MCS table used by the data may be the second MCS table; and/ Or, when the index of the search space is less than an index threshold, the MCS table may be the first MCS table.
- the MCS table may be the second MCS table; and/or, when the second information indicates In the case of the first MCS table, the MCS table may be the first MCS table.
- a default MCS table may be used as the MCS table, and the default MCS table may be the first MCS table or the second MCS table.
- the second information may be configuration information carried in higher layer signaling.
- the MCS table when the value is less than or equal to the first threshold, the MCS table may be the first MCS table; and/or, When the value is greater than the first threshold, the MCS table may be a second MCS table.
- the MCS table may be the first MCS table; and/or, When the value is less than the second threshold, the MCS table may be a second MCS table.
- the first information may also include an MCS indicator field, where the MCS indicator field includes N bits, N is less than log 2 M, M is the number of MCS in the MCS table, and M is a positive integer , N is a non-negative integer, and the MCS indication field can be used to determine the MCS used by the data from the MCS table.
- the n+m+1th MCS in the MCS table can be used as the MCS, or the n*m+th MCS in the MCS table can be used as the MCS.
- One MCS serves as the MCS. Among them, m and n are non-negative integers.
- the value of n may be preconfigured, or the communication module may also be used to send third information indicating the value of n.
- the third information may be configuration information carried in higher layer signaling.
- the MCS indication field may also be used to determine the MCS used by the data from the 2 N candidate MCSs in the MCS table, where N is a positive integer.
- N is a positive integer.
- 2 N candidate MCSs are pre-configured.
- the 2 N candidate MCSs are indicated by the network device through the configuration information.
- the communication module may also be used to send fourth information to the terminal device, where the fourth information is used to indicate the candidate MCSs.
- the fourth information may be configuration information carried in higher layer signaling.
- the MCS table may be the MCS index of 2 N successive alternate MCS.
- the 2 N candidate MCSs may be MCSs with discontinuous indexes in the MCS table, and the index difference between two adjacent candidate MCSs is the same, for example, between two adjacent candidate MCSs The index difference is 2.
- the communication module can be used to send first information, which is used to schedule data, and the value of the bit field in the first information is used to determine the MCS table used by the data.
- the data transmission module can be used to receive or send data, where the MCS used for the data is determined according to the first information and the MCS table.
- the MCS table may be the first MCS table; and/or, if the first information is If the value of the bit field is greater than the first threshold, the MCS table may be a second MCS table.
- the MCS table may be the first MCS table; and/or, if the first information is If the value of the bit field is smaller than the second threshold, the MCS table may be the second MCS table.
- the transceiver may execute the steps performed by the above communication module and/or data transmission module.
- the present application provides a communication system, which may include the communication device described in the third aspect and/or the communication device described in the fourth aspect.
- this application provides a computer storage medium in which instructions (or programs) are stored, which when invoked and executed on a computer, cause the computer to execute the first aspect or the first aspect described above.
- instructions or programs
- the present application provides a computer program product.
- the basic computing product may contain instructions that, when the computer program product runs on a computer, cause the computer to execute the first aspect or any possible design of the first aspect.
- the present application provides a chip or a chip system including the chip, and the chip may include a processor.
- the chip may also include memory and/or communication modules.
- the chip can be used to implement the method described in the first aspect or any possible design of the first aspect, or used to implement the method described in the second aspect or any possible design of the second aspect.
- the chip system may be composed of the above-mentioned chips, or may include the above-mentioned chips and other discrete devices, such as communication modules.
- FIG. 1 is a schematic diagram of the architecture of a wireless communication system provided by this application.
- FIG. 2 is a schematic flowchart of a data transmission method provided by this application.
- FIG. 3 is a schematic flowchart of another data transmission method provided by this application.
- FIG. 4 is a schematic structural diagram of a communication device provided by this application.
- FIG. 5 is a schematic structural diagram of another communication device provided by this application.
- FIG. 6 is a schematic structural diagram of another communication device provided by this application.
- FIG. 7 is a schematic structural diagram of another communication device provided by this application.
- At least one refers to one or more than one, that is, includes one, two, three and more.
- Multiple refers to two or more than two, that is, two, three and more.
- Carrying can mean that a certain message is used to carry certain information or data, or it can mean that a certain message is composed of certain information.
- Coupling refers to the indirect coupling or communication connection between devices, units or modules, which can be electrical, mechanical or other forms, and is used for information exchange between devices, units or modules.
- the uplink and downlink data includes uplink data and/or downlink data.
- the downlink data can be carried on the PDSCH, and the uplink data can be carried on the PUSCH.
- the scheduling information in the downlink control information DCI may include data time domain resource indication information, frequency domain resource indication information, and the modulation and coding scheme MCS adopted by the data channel. These information are all necessary information for receiving uplink and downlink data, such as time domain or frequency domain resource indication information, used to determine the time domain and frequency domain resources of the received data, and the modulation and coding method MCS is used to determine the transmission on the time-frequency resource.
- the code rate used by the data the user can determine the size of the data, or the number of bits of the data, according to the code rate and the size of the indicated time-frequency resource, so that the data can be received correctly.
- Temporary wireless network identification When sending DCI, the network device can scramble DCI through the temporary wireless network identification, and the terminal device can descramble DCI according to the identification, and the identification can realize user identification or special function for DCI Identify it.
- wireless network temporary identifiers include cell radio network tempory identity (C-RNTI), MCS-C-RNTI, and configured scheduling wireless network temporary identity (configured schedulingradio network tempory identity, CS-RNTI), etc. .
- the network equipment can allocate the cell radio network temporary identification C-RNTI to each terminal equipment.
- the terminal equipment can use its own C-RNTI for descrambling, thereby receiving the network equipment sent to itself DCI.
- CS-RNTI is mainly an identifier used in semi-persistent scheduling (SPS) PDSCH activation, deactivation, and uplink scheduling-free indication.
- SPS semi-persistent scheduling
- DCI format In this application, DCI with different DCI content and/or different numbers of DCI bits is called DCI with different formats.
- DCI format 1_0 and DCI format 0_0 are both DCI formats used for scheduling PUSCH.
- DCI format 1_1 and DCI format 0_1 are both DCI formats used to schedule PDSCH.
- DCI format 1_2 In order to support high-priority services, it is possible to introduce a new DCI format, which we call DCI format 1_2.
- This DCI format can be determined as a specific number of bits through configuration information, and the number of bits can be less than that of all existing DCI formats. The number of bits.
- This DCI format can be used to schedule high-priority services.
- the search space is some candidate locations indicated by the network device to the terminal device that may send DCI, and the terminal device receives the DCI by detecting whether there is a corresponding DCI in the search space. If a DCI is received, the search space of the DCI is the search space of this DCI.
- the search space is divided into a common search space (CSS) and a user-specific search space (UE-specific search space, USS).
- the search space has an identifier (such as an index), and each search space corresponds to a type, either a public search space or a user-specific search space, depending on the type configuration information of each search space received. This type of configuration information can be carried in configuration information.
- the high-level signaling may refer to the signaling sent by the high-level protocol layer.
- the high-level protocol layer is at least one protocol layer above the physical layer. Among them, the high-level protocol layer may specifically include at least one of the following protocol layers: medium access control (MAC) layer, radio link control (RLC) layer, packet data convergence protocol (packet data convergence) Protocol, PDCP) layer, radio resource control (RRC) layer and non-access stratum (NAS).
- MAC medium access control
- RLC radio link control
- PDCP packet data convergence protocol
- RRC radio resource control
- NAS non-access stratum
- SPS PDSCH Semi-persistent scheduling data, it is the network device sending configuration information to indicate the period of data and other information, and then the network device will send an activated PDCCH to activate, and the activated PDCCH will indicate time-frequency resource information and MCS information, etc. PDCCH will not be sent in the future, and data will be sent according to the period indicated by the configuration information. Therefore, for the first SPS PDSCH, there is a corresponding DCI, that is, the SPS PDSCH with scheduling information, and the following SPSPDSCHs are all SPS PDSCHs without scheduling information, because they are sent periodically.
- Uplink scheduling-free includes two types. Type 1 means that all data communication information is configured by the network device through the configuration information, and then the network device directly uses the configuration to send data when sending data , There is no need to send any additional PDCCH indication. Type 2 refers to the SPS PUSCH, which is similar to the downlink SPS PDSCH process, but this is the user equipment sending data to the network device, please refer to the foregoing description of the SPS PDSCH.
- PUSCH with/without transform precoding transform precoding: There are currently two waveforms for PUSCH, and the PUSCH with transform precoding corresponds to a single carrier orthogonal frequency division multiplexing (synchronous coherent orthogonal frequency division multiplexing, SC-OFDM) waveform
- SC-OFDM synchronous coherent orthogonal frequency division multiplexing
- the PUSCH without transform precoding corresponds to the cyclic prefix-orthogonal frequency division multiplexing (CP-OFDM) waveform, and the specific waveform of the uplink PUSCH transmission can be indicated by the network device through configuration information.
- CP-OFDM cyclic prefix-orthogonal frequency division multiplexing
- At least one of a, b, or c can mean: a, b, c, a and b, a and c, b and c, or a, b and c, where a, b, c It can be single or multiple.
- the wireless communication system 100 may include a terminal device 101 and a network device 102.
- the wireless communication system 100 provided in the embodiment of the present application is applicable to both low-frequency scenarios (sub 6G) and high-frequency scenarios (above 6G).
- the application scenarios of the wireless communication system 100 provided in the embodiments of the present application include, but are not limited to, the Global System of Mobile Communication (GSM) system, Code Division Multiple Access (CDMA) system, and Wideband Code Division Multiple Access.
- GSM Global System of Mobile Communication
- CDMA Code Division Multiple Access
- Wideband Code Division Multiple Access Wideband Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interoperability for Microwave Access
- 5G 5th Generation
- 5NR new radio
- the terminal device 101 shown above may be a user equipment (UE), a terminal (terminal), a mobile station (mobile station, MS), a mobile terminal (mobile terminal), etc.
- the terminal device 101 can communicate with one or more One or more network devices of the communication system communicate and accept network services provided by the network devices.
- the network devices here include but are not limited to the network device 102 shown in the figure.
- the terminal device 101 in the embodiment of the present application may be a mobile phone (or called a "cellular" phone), a computer with a mobile terminal, etc., and the terminal device 101 may also be portable, pocket-sized, handheld, and built-in computer. , Or on-board mobile devices.
- the terminal device 101 may also be a communication chip with a communication module.
- the network device 102 may include a base station (base station, BS), or includes a base station and a wireless resource management device for controlling the base station, etc.
- the network device 102 may be a relay station (relay device), an access point, a vehicle-mounted device, or a wearable
- the equipment and the base station in the future 5G network, the base station in the future evolved public land mobile network (PLMN) network, or the NR base station, etc., are not limited in the embodiment of the present application.
- the network device 102 may also be a communication chip with a communication module.
- the data transmission method provided by the embodiment of the present application can be implemented by the communication system as shown in FIG. 1, and the transmission of high-priority service data can be realized by this method.
- the data transmission method provided by the embodiment of the present application is introduced. As shown in FIG. 2, the method may include the following steps:
- the network device 102 sends first information, where the first information is used for scheduling data, and the scrambling identifier of the first information is MCS-C-RNTI or a high-priority cell radio network temporary identifier Higher-priority-C-RNTI.
- the Higher-priority-C-RNTI is used to identify that the first information is used for scheduling high-priority data.
- the first information may be the DCI sent by the network device 102 to the terminal device 101, and the DCI may be used to schedule uplink and downlink data between the network device 102 and the terminal device 101.
- the high-priority data involved in S101 includes high-priority service data, such as URLLC service data.
- the network device 102 may scramble the first information by using the MCS-C-RNTI identifier or the Higher-priority-C-RNTI identifier to indicate that the data is high-priority data.
- the Higher-priority-C-RNTI logo here is just an example. This application does not limit the use of Higher-priority-C-RNTI as a new logo to scramble DCI to indicate high-priority data. If URLLC-RNTI is introduced Or another identifier is used as the new identifier, and it should be understood that the Higher-priority-C-RNTI in the embodiment of the present application can be replaced with URLLC-RNTI or the other identifier.
- the network device 102 uses the scrambled identifier to identify the service priority, it can also indicate in the first information that the data is a further priority under a service of the same priority through a bit field. For example, if a certain DCI is scrambled by Higher-priority-C-RNTI, it is determined that the first information schedules high-priority data, and there is a bit field in the DCI, indicating that such high-priority data is further detailed Priority of change.
- the terminal device 101 receives the first information
- the terminal device 101 determines the MCS table used by the data according to the scrambling identifier of the first information and the target information.
- performing data transmission includes the network device 102 sending downlink data to the terminal device 101. At this time, the network device 102 sends the data, and the terminal device 101 receives the data. Alternatively, performing data transmission includes the terminal device 101 sending uplink data to the network device 102. At this time, the terminal device 101 sends the data, and the network device 102 receives the data.
- the terminal device 101 can determine the MCS table used by the data according to the scrambling identifier and target information of the first information, and according to the The table and the first information can determine the MCS used by the data, so that the terminal device 101 can determine the MCS.
- the target information involved in S103 may include the format of the first information, the search space where the first information is located, the second information, or some or all of the information in the value of the bit field in the first information.
- the second information is used to indicate the MCS table.
- the second information is configuration information, so the MCS table can be indicated by the network device 102 to the terminal device 101.
- the value of the bit field in the first information can be used to indicate the priority of the service to which the data scheduled by the DCI belongs.
- a 2-bit (bit) bit field is used in the DCI, and its value is configured as 0, 1, 2 or 3, respectively indicating that the priority of the service is 0, 1, 2 or 3, the value of 0, 1, 2 or 3 corresponds to the priority from low to high, or from high to low.
- the network device 102 can indicate a certain MCS table according to the scrambling identifier and target information of the first information. Accordingly, the terminal device 101 can be based on the method provided in the embodiment of this application, according to the first The scrambled identifier of the information and the target information determine the MCS table, so that a consensus can be reached between the network device 102 and the terminal device 101 on the way to determine the MCS table, and the MCS table determined by the network device 102 and the terminal device 101 is not different As a result, the data cannot be received.
- the following takes the first information as DCI as an example to specifically introduce several methods of determining the MCS table used by data according to the scrambling identifier and target information of the first information provided in the embodiments of the present application. It should be understood that the network device 102 can use the same method to determine the MCS table, and/or the network device 102 can first select the MCS table used to transmit data according to this method, and then reversely derive the addition of the first information based on the MCS table. Scrambling identification and target information, and using the scrambling identification and target information to send DCI.
- Manner 1 Determine the MCS table according to the scrambling identifier of the DCI and the format of the DCI.
- the terminal device 101 determines that the MCS table is the first MCS table or the second DCI format.
- the first DCI format and the second DCI format are different DCI formats.
- the terminal device 101 determines that the MCS table is the second MCS table; or, if the format of the first information is the second DCI format, the terminal device 101 determines that the MCS table is the first MCS table.
- the first DCI format and the second DCI format are different DCI formats.
- the terminal device 101 may determine the MCS table It is the first MCS form.
- the terminal device 101 may determine that the MCS table is the first 2. MCS form.
- the terminal device 101 may determine that the MCS table is the first MCS table. Or, when the network device 102 scrambles the DCI with Higher-priority-C-RNTI, and the format of the DCI is 1_2, the terminal device 101 may determine that the MCS table is the second MCS table.
- Manner 2 Determine the MCS table according to the scrambling identifier of the DCI and the search space of the DCI.
- the MCS table can be determined according to the scrambling identifier of the DCI and whether the search space of the DCI is a user-specific search space or a common search space. Specifically, when the scrambling identifier is MCS-C-RNTI or Higher-priority-C-RNTI, if the search space where the DCI is located is a user-specific search space, the terminal device 101 determines that the MCS table is the first Two MCS tables; or, if the search space where DCI is located is a common search space, the terminal device 101 determines that the MCS table is the first MCS table.
- the MCS table can be determined according to the scrambling identifier of the DCI and whether the search space of the DCI is a user-specific search space or a common search space. Specifically, when the scrambling identifier is MCS-C-RNTI or Higher-priority-C-RNTI, if the search space where the DCI is located is a user-specific search space, the terminal device 101 determines that the MCS table is the first An MCS table; or, if the search space where the DCI is located is a common search space, the terminal device 101 determines that the MCS table is the second MCS table.
- the terminal device 101 may determine that the MCS table is the second MCS table. Or, when the network device 102 allocates an MCS-C-RNTI to the terminal device 101 and scrambles the DCI with the MCS-C-RNTI, and the search space where the DCI is located is a common search space, the terminal device 101 can determine The MCS form is the first MCS form.
- the terminal device 101 may determine that the MCS table is the second MCS table. Or, when the network device 102 scrambles the DCI with Higher-priority-C-RNTI, and the search space where the DCI is located is a common search space, the terminal device 101 may determine that the MCS table is the first MCS table.
- the MCS table can also be determined according to the scrambling identifier of the DCI and the index of the DCI search space. Specifically, when the scrambling identifier is MCS-C-RNTI or Higher-priority-C-RNTI, if the index of the search space where the DCI is located is greater than or equal to the index threshold, the terminal device 101 determines that the MCS table is The second MCS table; or, if the index of the search space where the DCI is located is less than the index threshold, the terminal device 101 determines that the MCS table is the first MCS table. Among them, the first MCS table and the second MCS table are different MCS tables.
- the index threshold may be indicated to the terminal device 101 by the network device 102 through configuration information, or the index threshold may be defined by a protocol or determined in a pre-configured manner.
- the MCS table can also be determined according to the scrambling identifier of the DCI and the index of the DCI search space. Specifically, when the scrambling identifier is MCS-C-RNTI or Higher-priority-C-RNTI, if the index of the search space where the DCI is located is less than or equal to the index threshold, the terminal device 101 determines that the MCS table is The second MCS table; or, if the index of the search space where the DCI is located is greater than the index threshold, the terminal device 101 determines that the MCS table is the first MCS table. Among them, the first MCS table and the second MCS table are different MCS tables.
- the index threshold may be indicated to the terminal device 101 by the network device 102 through configuration information, or the index threshold may be defined by a protocol or determined in a pre-configured manner.
- the terminal device 101 may determine that the MCS table used by the data is the second MCS table.
- the terminal device 101 may Make sure that the MCS form is the first MCS form.
- the terminal device 101 may determine that the MCS table is the first MCS table.
- the terminal device 101 may determine that the MCS table is the second MCS table.
- the MCS table determined by the terminal device may be the same as the MCS table when the index of the search space where the DCI is located is less than the index threshold, or the index of the search space where the DCI is located The MCS table is the same when it is greater than the index threshold.
- different MCS tables are determined in combination with the type or index of the search space where the DCI is located.
- using this rule can reach agreement between the network device 102 and the terminal device 101 on the way to determine the MCS table, so as to avoid the difference in MCS tables determined by the network device 102 and the terminal device 101, which may result in data not being received.
- it can switch between multiple MCS tables according to the DCI scrambling identifier and the type or index of the search space in which the DCI is located, so as to achieve different data of different business priorities. Reliability requirements, thereby improving resource utilization.
- Manner 3 Determine the MCS table according to the scrambling identifier of the DCI and the second information.
- the terminal device 101 determines that the second MCS table is the MCS table used by the data. Or, when the second information indicates the first MCS table, the terminal device 101 determines that the first MCS table is the MCS table used by the data.
- the second information may include the index of the MCS table.
- the second information may carry the index of the first MCS table (such as index 0) to indicate the first MCS table.
- the second information may be a specific bit in the configuration information, and the value of the specific bit may be used to indicate the MCS table. For example, when the specific bit is configured as 0, the second information may be used to indicate the first MCS table When the specific bit is configured as 1, the second information can be used to indicate the second MCS table; or, the second information can carry the name or flag of the MCS table to indicate the MCS table.
- the MCS table used by the data is the first MCS table, or when the name and mark of the MCS table carried in the second information
- the mark is the name or mark of the second MCS form, it is determined that the MCS form used by the data is the second MCS form.
- the terminal device 101 may determine that the MCS form is the first MCS form. Or, when the network device 102 allocates the MCS-C-RNTI to the terminal device 101 and scrambles the DCI with the MCS-C-RNTI, and the second information sent by the network device 102 to the terminal device 101 indicates the second MCS table , The terminal device 101 may determine that the MCS table is the second MCS table.
- the terminal device 101 may determine that the MCS table is the first MCS table . Or, when the network device 102 scrambles the DCI with Higher-priority-C-RNTI, and the second information sent by the network device 102 to the terminal device 101 indicates the second MCS table, the terminal device 101 may determine that the MCS table is the second MCS form.
- the terminal device 101 determines that the second MCS table is the data usage The MCS form. If the terminal device 101 determines that it has not received the second information sent by the network device 102, the terminal device 101 can use the first MCS table as the MCS table for the data by default; in addition, when the network device 102 uses the MCS-C-RNTI or When the Higher-priority-C-RNTI scrambles the DCI, if the second information indicates the first MCS table, the terminal device 101 determines that the first MCS table is the MCS table used by the data. If the terminal device 101 determines that it has not received the second information sent by the network device 102, the terminal device 101 may use the second MCS table as the MCS table used for the data by default.
- the second information determines different MCS tables.
- using this rule can reach agreement between the network device 102 and the terminal device 101 on the way to determine the MCS table, so as to avoid the difference in MCS tables determined by the network device 102 and the terminal device 101, which may result in data not being received.
- it can switch between multiple MCS tables according to the DCI scrambling identifier and the second information, so as to achieve different reliability requirements for data with different business priorities, thereby improving Resource utilization.
- Method 4 Determine the MCS table according to the scrambling identifier of the DCI and the value of the bit field in the DCI. Among them, the value of the bit field can be used to indicate the priority of the service.
- the terminal device 101 determines that the MCS table is the first MCS table.
- the terminal device 101 determines that the MCS table is the second MCS table.
- the first threshold may be indicated by the network device 102 to the terminal device 101 through configuration information, or may be defined by a protocol or determined in a pre-configuration manner.
- the MCS table determined by the terminal device may be the same as the MCS table when the value of the bit field in the DCI is greater than the first threshold, or the bit field in the DCI The MCS table when the value is less than the first threshold is the same.
- the first threshold may be 1.
- the terminal device 101 can determine The MCS form is the first MCS form.
- the terminal device 101 allocates the MCS-C-RNTI to the terminal device 101 and scrambles the DCI with the MCS-C-RNTI, and the value of the bit field in the DCI is 2 or 3, the terminal device 101 It can be determined that the MCS form is the second MCS form.
- the terminal device 101 may determine that the MCS table is the first MCS table. Or, when the network device 102 scrambles the DCI with Higher-priority-C-RNTI, and the value of the bit field in the DCI is 2 or 3, the terminal device 101 may determine that the MCS table is the second MCS table.
- the terminal device 101 determines that the MCS table is the first MCS table.
- the terminal device 101 determines that the MCS table is the second MCS table.
- the value of the second threshold may be the same as the value of the first threshold, or may be different from the value of the first threshold.
- the MCS table determined by the terminal device may be the same as the MCS table when the value of the bit field in the DCI is greater than the second threshold, or the value of the bit field in the DCI The MCS table is the same when the value is less than the second threshold.
- the method may include the following steps:
- the network device 102 sends first information, where the first information is used for scheduling data.
- the first information may be the DCI sent by the network device 102 to the terminal device 101, and the DCI may be used to schedule uplink and downlink data between the network device 102 and the terminal device 101.
- S202 The terminal device 101 receives the first information.
- the terminal device 101 determines the MCS table used by the data according to the value of the bit field in the first information, and the value of the bit field can be used to indicate the priority of the service to which the data belongs.
- performing data transmission includes the network device 102 sending downlink data to the terminal device 101. At this time, the network device 102 sends the data, and the terminal device 101 receives the data. Alternatively, performing data transmission includes the terminal device 101 sending uplink data to the network device 102. At this time, the terminal device 101 sends the data, and the network device 102 receives the data.
- the terminal device 101 determines that the MCS table is the second MCS table.
- the setting mode of the first threshold here, refer to the description in the fourth mode.
- the MCS table determined by the terminal device may be the same as the MCS table when the value of the bit field in the DCI is greater than the first threshold, or the bit field in the DCI The MCS table when the value is less than the first threshold is the same.
- the first threshold may be 1.
- the terminal device 101 can determine that the MCS table is the first MCS table.
- the terminal device 101 may determine that the MCS table is the second MCS table.
- the terminal device 101 determines that the MCS table is the second MCS table.
- the manner of setting the second threshold may refer to the description in the foregoing manner 4.
- the first threshold may be the same as or different from the second threshold.
- the MCS table determined by the terminal device may be the same as the MCS table when the value of the bit field in the DCI is greater than the second threshold, or the value of the bit field in the DCI The MCS table is the same when the value is less than the second threshold.
- first MCS table and the second MCS table involved in the above embodiments are different MCS tables.
- the first MCS table determined according to the DCI in the embodiment of the present application may be as shown in Table 1, and/or determined according to the DCI
- the second MCS table can be configured as shown in Table 2. Among them, it can be seen that the second MCS table contains more rows of medium and low code rates (or target code rates), and the lower the code rate, the higher the reliability of transmission. Therefore, the second MCS table can be used more for Where transmission reliability is relatively high.
- the second MCS table may be a low spectrum efficiency MCS table with a highest modulation mode of 64QAM, and the name or logo of the second MCS table is recorded as'qam64LowSE'.
- the first MCS table may be a high spectral efficiency MCS table with a highest modulation mode of 64QAM, and the name or logo of the first MCS table may be recorded as'qam64HighSE'.
- the first MCS table determined according to the DCI in the embodiment of the present application may adopt the configuration shown in Table 3, and/or the second MCS table determined according to the DCI It can be configured as shown in Table 4.
- the second MCS table may be a low spectrum efficiency MCS table with a highest modulation mode of 64QAM, and the name or logo of the second MCS table may be recorded as'qam64LowSE'.
- the first MCS table may be a high spectrum efficiency MCS table with a highest modulation mode of 64QAM, and the name or logo of the first MCS table may be recorded as'qam64HighSE'.
- the first DCI format may be DCI format 1_1, and the second DCI format may be DCI format 1_2.
- different MCS tables are determined according to the relationship between the value of the bit field in the DCI and the first threshold or the second threshold.
- using this rule can reach agreement between the network device 102 and the terminal device 101 on the way to determine the MCS table, so as to avoid the difference in MCS tables determined by the network device 102 and the terminal device 101, which may result in data not being received.
- it can switch between multiple MCS tables according to the value of the bit field in the DCI, so as to achieve different reliability requirements for data with different service priorities, thereby improving resources Utilization rate.
- the specific MCS used can also be determined according to the MCS table and the first information.
- the MCS can be determined from the MCS table according to the MCS indication field in the first information.
- the number of MCS that can be indicated by the MCS indication field in the first message is the same as the number of MCS in the MCS table.
- the number of bits in the MCS indication field is M
- the number of MCS that can be indicated by the MCS indication field in the first message is 2 M
- the number of MCS in the MCS table is 2 M
- M is a positive integer
- the MCS whose MCS index is 1 as shown in Table 1 can be used as the used MCS, and the terminal device 101 And the network device 102 can perform data transmission according to the MCS.
- the length of the MCS indication field in the first information can also be reduced to reduce the number of DCI bits.
- the transmission code rate can be reduced to achieve the purpose of improving the reliability of DCI transmission.
- the number of MCS that can be indicated by the MCS indication field in the first information is less than the number of MCS in the MCS table.
- the number of bits in the MCS indication field is N
- the number of MCS that can be indicated by the MCS indication field in the first information The number is 2 N , N is less than log 2 M, and M is the number of MCS in the MCS table, that is, 2 N is less than M.
- the MCS can still be determined, so that the network device 102 and the terminal device 101 can agree on the MCS determination method , To ensure the normal transmission of data.
- the n+m+1th MCS in the MCS table can be used as the MCS used for data transmission, where m and n Is a non-negative integer.
- the terminal device 101 may determine the m+1th MCS in Table 1 as the MCS used for data transmission.
- the MCS contains 4 bits
- the 4 bits correspond to "00”
- n may be indicated by the network device 102 to the terminal device 101 through configuration information.
- the network device 102 sends third information to the terminal device 101, and the third information is used to indicate the value of n.
- the third indication information may be configuration information.
- the value of n can also be determined in a manner defined by the protocol.
- n indicates which MCS in the determined MCS table starts to indicate.
- the determined MCS form is Table 1.
- the terminal device determines that n is equal to 4 in the above-mentioned manner, which can indicate the start instruction of the fourth row in the MCS table.
- the MCS contains 4 bits
- the 4 bits correspond to "0000”
- the 4bit corresponds to "1111”
- the n*m+1th MCS in the MCS table can be used as the MCS used for data transmission.
- the MCS table is as shown in Table 1, when n is 1, the terminal device 101 may determine the m+1th MCS in Table 1 as the MCS used for data transmission.
- the terminal device 101 may determine the m+1th MCS in Table 1 as the MCS used for data transmission.
- the MCS contains 2bits
- the first MCS in Table 1 can be determined as the data transmission.
- n is used to indicate the interval between the index identifiers of the MCS indicated by the values of two adjacent MCS indication fields.
- the interval is 2, which is n.
- n may be indicated by the network device 102 to the terminal device 101 through configuration information.
- the network device 102 sends third information to the terminal device 101, and the third information is used to indicate the value of n.
- the third indication information may be configuration information.
- the value of n can also be determined in a manner defined by the protocol.
- the MCS used for data transmission may also be selected from 2 N candidate MCSs in the MCS table according to the value of the MCS indication field. For example, if the MCS table as shown in Table I. Alternatively, the 2 N of the MCS table including MCS MCS MCS index is 0 to 15, when the value of MCS indication field is m, may be in the form of 2 N MCS The m+1th MCS in the candidate MCS is used as the MCS for data transmission.
- the m-th candidate MCS refers to the MCS whose MCS index in all candidate MCSs is numbered from 1, and is labeled m.
- the 2 N alternatively MCS MCS MCS table may be a table index of 2 N consecutive MCS.
- 2 N MCSs with the smallest/largest MCS index in the MCS table are used as candidate MCSs.
- the specific one can be indicated to the terminal device 101 by the network device 102 through configuration information, or can be determined by the protocol definition mode, without introducing dynamic signaling, thereby reducing overhead.
- the 2 N alternatively MCS MCS MCS table may be a table, MCS MCS index between the minimum index p and any adjacent two alternative MCS is the difference of 2 N q, MCS, p, q All are non-negative integers.
- MCS indexes of the candidate MCS in Table 1 are: 1, 3, 5, 7, 9, 11, 13, 15, 17, 19, 21, 23, 25 , 27, 29 and 31.
- the values of p and q mentioned above may be indicated by the network device 102 to the terminal device 101 through configuration information, or may be determined by a protocol definition method. There is no need to introduce dynamic signaling, thereby reducing overhead.
- the network device 102 and/or the terminal device 101 may perform the above-mentioned MCS determination process, including but not limited to the network device 102 and/or the terminal device 101 determining the MCS table according to the first information and target information, and , The network device 102 and/or the terminal device 101 determines the MCS according to the MCS indication field of the first information and the MCS table.
- a method for determining the MCS of the data according to the MCS bit field is specified to ensure a consistent understanding between the base station and the user; and It can flexibly determine a certain MCS in the MCS table as the MCS used for data transmission, ensuring the reliability of service transmission and improving resource utilization.
- an embodiment of the present application also provides a communication device, which can have the functions of the network device 102 and/or the terminal device 101 in the above method embodiment, and can be used To perform the steps performed by the network device 102 and/or the terminal device 101.
- the functions can be realized by hardware, or by software or hardware executing corresponding software.
- the hardware or software includes one or more modules corresponding to the above-mentioned functions.
- the communication device 400 shown in FIG. 4 can be used as the network device 102 involved in the foregoing method embodiment, and executes the steps performed by the network device 102 in the foregoing method embodiment, for example, execute S101 And the actions performed by the network device 102 in the steps shown in S104, or the actions performed by the network device 102 in the steps shown in S201 and S204.
- the communication device 400 may include a communication module 401 and a data transmission module 402, and the communication module 401 and the data transmission module 402 are coupled with each other.
- the communication module 401 may be used to support the communication device 400 to communicate
- the data transmission module 402 may be used to support the communication device to send and receive data.
- the communication module 401 can be used to send first information, and the first information is used for scheduling data.
- the data transmission module 402 can be used to receive or send the data, where the scrambled identifier and target information of the first information are used to determine the MCS table used by the data, and the MCS used by the data is based on the first information and the MCS table determine.
- the target information may include the format of the first information, the search space where the first information is located, the second information, or part or all of the value of the bit field in the first information, where the value of the bit field Can be used to indicate the priority of the data.
- the MCS table may be the first MCS table; and/or, if the format of the first information is the second DCI format, Then the MCS table may be the second MCS table.
- the MCS table may be the second MCS table; and/or, in the first When the search space where the information is located is a public search space, the MCS table may be the first MCS table.
- the MCS table used by the data may be the second MCS table; and/or, in the search space When the index is less than the index threshold, the MCS table may be the first MCS table.
- the setting method of the index threshold refer to the introduction in the above method embodiment.
- the MCS table may be the second MCS table; and/or, when the second information indicates the first MCS table, the The MCS table may be the first MCS table.
- the determination method of the second information refer to the introduction in the above method embodiment.
- a default MCS table may be used as the MCS table, and the default MCS table may be the first MCS table or the second MCS table.
- the MCS table when the value is less than or equal to the first threshold, the MCS table may be the first MCS table; and/or, when the value is greater than the first threshold At a threshold, the MCS table may be the second MCS table.
- the setting method of the first threshold refer to the introduction in the above method embodiment.
- the MCS table when the value is greater than or equal to the second threshold, the MCS table may be the first MCS table; and/or, when the value is less than the first When the threshold is two, the MCS table may be the second MCS table.
- the setting method of the second threshold refer to the introduction in the above method embodiment.
- the first information may also include an MCS indicator field, where the MCS indicator field includes N bits, N is less than log 2 M, M is the number of MCS in the MCS table, M is a positive integer, and N is a non-negative integer.
- the MCS indication field can be used to determine the MCS used by the data from the MCS table.
- the n+m+1th MCS in the MCS table can be used as the MCS, or the n*m+1th MCS in the MCS table can be used as the MCS MCS.
- m and n are non-negative integers.
- the value of n may be preconfigured, or the communication module 401 may also be used to send third information for indicating the value of n.
- the third information here may be a high-level signaling, such as configuration information.
- the MCS indication field can also be used to determine the MCS used by the data from the 2 N candidate MCSs in the MCS table, where N is a positive integer.
- 2 N candidate MCSs are pre-configured.
- the 2 N candidate MCSs are indicated by the network device 102 through configuration information.
- the communication module 401 may also be used to send fourth information to the terminal device 101, where the fourth information is used to indicate the candidate MCSs.
- the fourth information may be configuration information carried in higher layer signaling.
- the MCS table may be the MCS index of 2 N successive alternate MCS.
- the 2 N candidate MCSs may be MCSs with discontinuous indexes in the MCS table, and the index difference between two adjacent candidate MCSs is the same, for example, between two adjacent candidate MCSs The index difference is 2.
- the above first MCS table and second MCS table are different MCS tables.
- the communication module 401 may be used to send first information, which is used to schedule data, and the value of the bit field in the first information is used to determine the MCS table used by the data.
- first information which is used to schedule data
- the value of the bit field in the first information is used to determine the MCS table used by the data.
- the data transmission module 402 can be used to receive or send data, where the MCS used for the data is determined according to the first information and the MCS table.
- the MCS table may be the first MCS table; and/or, if the value of the bit field in the first information is greater than the first threshold
- the first threshold the MCS table may be the second MCS table.
- the MCS table may be the first MCS table; and/or, if the value of the bit field in the first information is less than the second threshold
- the MCS table may be the second MCS table.
- the above first MCS table and second MCS table are different MCS tables.
- an embodiment of the present application also provides a communication device 500.
- the communication device 500 can be used as the terminal device 101 involved in the foregoing method embodiment, and executes what is executed by the terminal device 101 in the foregoing method embodiment. Steps, such as performing the actions performed by the terminal device 101 in the steps shown in S102, S103 and S104, or performing the actions performed by the terminal device 101 in the steps shown in S202, S203, and S204.
- the communication device 500 may include a communication module 501, a processing module 502, and a data transmission module 503, and any two of the above communication module 501, processing module 502, and data transmission module 503 are coupled with each other.
- the communication module 501 can be used to receive first information, and the first information is used for scheduling data.
- the processing module 502 can be used to determine the modulation and coding scheme MCS table used by the data according to the scrambling identifier and target information of the first information.
- the data transmission module 503 can be used to receive or send the data, where the MCS used for the data is determined according to the first information and the MCS table.
- the target information may include the format of the first information, the search space where the first information is located, the second information, or part or all of the value of the bit field in the first information, where the value of the bit field Can be used to indicate the priority of the data.
- the processing module 502 may determine that the format of the first information is When the first DCI format is used, determine that the MCS table is the first MCS table; and/or, when the format of the first information is the second DCI format, the processing module 502 may determine that the MCS table is the second MCS table.
- the processing module 502 may be in the first When the search space where the information is located is a user-specific search space, determine that the MCS table is the second MCS table; and/or, the processing module 502 may determine the MCS when the search space where the first information is located is a common search space
- the form is the first MCS form.
- the processing module 502 can search the index of the space When it is greater than or equal to the index threshold, determine that the MCS table used by the data is the second MCS table; and/or, the processing module 502 may determine that the MCS table is the first MCS when the index of the search space is less than the index threshold form.
- the index threshold For the setting method of the index threshold, refer to the introduction in the above method embodiment.
- the processing module 502 may determine the second MCS table when the second information indicates the second MCS table. , Determine that the MCS table is the second MCS table; and/or, the processing module 502 may determine that the MCS table is the first MCS table when the second information indicates the first MCS table.
- the processing module 502 may determine a default MCS table as the MCS table, and the default MCS table may be the first MCS table or the second MCS table.
- the processing module 502 may select the value When the value is less than or equal to the first threshold, the MCS table is determined to be the first MCS table; and/or, the processing module 502 may determine that the MCS table is the second MCS table when the value is greater than the first threshold.
- the setting method of the first threshold refer to the introduction in the above method embodiment.
- the processing module 502 may select the value When the value is greater than or equal to the second threshold, it is determined that the MCS table is the first MCS table; and/or, the processing module 502 may determine that the MCS table is the second MCS table when the value is less than the second threshold.
- the setting method of the second threshold refer to the introduction in the above method embodiment.
- the processing module 502 may also be used to determine the MCS used when transmitting data according to the first information and the MCS table.
- the first information may further include an MCS indicator field, the MCS indicator field includes N bits, N is less than log 2 M, M is the number of MCS in the MCS table, M is a positive integer, and N is a non-negative integer,
- the processing module 502 can be used to determine the MCS used by the data from the MCS table according to the MCS indication field, so that the data can be received and sent according to the MCS.
- the processing module 502 may use the n+m+1th MCS in the MCS table as the MCS, or the processing module 502 may use the nth MCS in the MCS table as the MCS. *m+1 MCS as the MCS.
- n may be pre-configured, or the communication module 501 may also be configured to receive third information for indicating the value of n.
- the third information here may be a high-level signaling, such as configuration information.
- the processing module 502 may also determine the MCS used by the data from the 2 N candidate MCSs in the MCS table according to the MCS indication field, where N is a positive integer. Among them, 2 N candidate MCSs are pre-configured. Alternatively, the 2 N candidate MCSs are indicated by the network device 102 through configuration information. At this time, the communication module 501 may also be used to receive fourth information sent by the network device 102, where the fourth information is used to indicate the candidate MCSs. Wherein, the fourth information may be configuration information carried in higher layer signaling.
- the MCS table may be the MCS index of 2 N successive alternate MCS.
- the 2 N candidate MCSs may be MCSs with discontinuous indexes in the MCS table, and the index difference between two adjacent candidate MCSs is the same, for example, between two adjacent candidate MCSs The index difference is 2.
- the above first MCS table and second MCS table are different MCS tables.
- the communication module 501 can be used to receive first information, which is used to schedule data.
- the processing module 502 may be configured to determine the MCS table used by the data according to the value of the bit field in the first information; the value of the bit field is used to indicate the priority of the service to which the data belongs.
- the data transmission module 503 can be used to receive or send the data, where the MCS used for the data is determined by the information and the MCS table by decomposing the place.
- the setting method of the bit field in the above first information refer to the introduction in the above method embodiment.
- the processing module 502 may be specifically configured to determine when the value of the bit field in the first information is less than or equal to the first threshold
- the MCS table is the first MCS table; and/or, when the value of the bit field in the first information is greater than the first threshold, the processing module 502 determines that the MCS table is the second MCS table.
- the setting method of the first threshold refer to the introduction in the above method embodiment.
- the processing module 502 may be specifically configured to determine that the value of the bit field in the first information is greater than or equal to the second threshold
- the MCS table is the first MCS table; and/or, when the value of the bit field in the first information is less than the second threshold, the processing module 502 determines that the MCS table is the second MCS table.
- the setting method of the second threshold refer to the introduction in the above method embodiment.
- the above first MCS table and second MCS table are different MCS tables.
- the division of the communication device 400 and the modules included in the communication device 500 in the above embodiments is illustrative, and is only a logical function division, and other division methods may be used in actual implementation.
- the functional modules in the above communication device 400 and the communication device 500 may be integrated into one module, or may be separate physical existence.
- the above-mentioned integrated modules can be implemented in the form of hardware or software function modules, and should not be understood as being limited to the structure shown in FIG. 4 or FIG. 5.
- the communication device provided in the embodiment of the present application may also be composed of hardware components, such as a processor, a memory, or a transceiver.
- FIG. 6 uses a base station as an example to illustrate the structure of the communication device.
- the communication device 600 may include a transceiver 601, a memory 602, and a processor 603.
- the transceiver 601 may be used for communication by a communication device, for example, for sending or receiving the above-mentioned reference signal.
- the memory 602 is coupled with the processor 603, and is used to store programs and data necessary for the communication device 600 to implement various functions.
- the processor 603 is configured to support the communication device 600 to perform the corresponding processing functions in the above method, such as generating information involved in the method embodiment of the present application, or performing the steps of determining the MCS table and MCS.
- the function can be called by calling the memory 602
- the stored program is implemented.
- the transceiver 601 may be a wireless transceiver, which may be used to support the communication device 600 to receive and send signaling and/or data through a wireless air interface.
- the transceiver 601 may also be referred to as a transceiver unit or a communication unit.
- the transceiver 601 may include a radio frequency unit and one or more antennas.
- the radio frequency unit such as a remote radio unit (RRU), can be specifically used for radio frequency signals.
- the one or more antennas can be used to radiate and receive the radio frequency signal and convert the radio frequency signal to the baseband signal.
- the transceiver 601 may also only include the above radio frequency unit.
- the communication device 600 may include a transceiver 601, a memory 602, a processor 603, and an antenna.
- the memory 602 and the processor 603 may be integrated or independent of each other. As shown in FIG. 6, the memory 602 and the processor 603 can be integrated in the control unit 610 of the communication device 600.
- the control unit 610 may include a baseband unit (BBU) of an LTE base station.
- the baseband unit may also be called a digital unit (DU), or the control unit 610 may include 5G and future wireless access Under technology, a distributed unit (DU) and/or a centralized unit (CU) in a base station.
- the above-mentioned control unit 610 may be composed of one or more single boards, wherein multiple single boards can jointly support a single access standard radio access network (such as an LTE network), and multiple single boards can also support different access standards.
- the memory 602 and the processor 603 may serve one or more single boards. In other words, the memory 602 and the processor 603 can be separately provided on each board. It may also be that multiple boards share the same memory 602 and processor 603. In addition, a necessary circuit may be provided on each board, for example, the circuit may be used to realize the coupling between the memory 602 and the processor 603.
- the above transceiver 601, the processor 603, and the memory 602 may be connected through a bus structure and/or other connection media.
- the processor 603 can baseband processing the data to be sent and output the baseband signal to the radio frequency unit.
- the radio frequency unit performs radio frequency processing on the baseband signal and passes the radio frequency signal through the antenna Send in the form of electromagnetic waves.
- the radio frequency unit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 603, which converts the baseband signal into data To process.
- the transceiver 601 shown in FIG. 6 can be used to send first information, and the first information is used to schedule data.
- the transceiver 601 can also be used to receive or send the data, where the scrambled identifier and target information of the first information are used to determine the MCS table used by the data, and the MCS used by the data is based on the first information and the MCS table determine.
- the processor 603 may execute the program in the memory 602 to execute the MCS table and/or the MCS determining step.
- the target information may include the format of the first information, the search space where the first information is located, the second information, or part or all of the value of the bit field in the first information, where the value of the bit field Can be used to indicate the priority of the data.
- the MCS table may be the first MCS table; and/or, if the format of the first information is the second DCI format, Then the MCS table may be the second MCS table.
- the MCS table may be the second MCS table; and/or, in the first When the search space where the information is located is a public search space, the MCS table may be the first MCS table.
- the MCS table used by the data may be the second MCS table; and/or, in the search space When the index is less than the index threshold, the MCS table may be the first MCS table.
- the setting method of the index threshold refer to the introduction in the above method embodiment.
- the MCS table may be the second MCS table; and/or, when the second information indicates the first MCS table, the The MCS table may be the first MCS table.
- the determination method of the second information refer to the introduction in the above method embodiment.
- a default MCS table may be used as the MCS table, and the default MCS table may be the first MCS table.
- the MCS table when the value is less than or equal to the first threshold, the MCS table may be the first MCS table; and/or, when the value is greater than the first threshold At a threshold, the MCS table may be the second MCS table.
- the setting method of the first threshold refer to the introduction in the above method embodiment.
- the MCS table when the value is greater than or equal to the second threshold, the MCS table may be the first MCS table; and/or, when the value is less than the first When the threshold is two, the MCS table may be the second MCS table.
- the setting method of the second threshold refer to the introduction in the above method embodiment.
- the first information may also include an MCS indicator field, where the MCS indicator field includes N bits, N is less than log 2 M, M is the number of MCS in the MCS table, M is a positive integer, and N is a non-negative integer.
- the MCS indication field can be used to determine the MCS used by the data from the MCS table.
- the n+m+1th MCS in the MCS table can be used as the MCS, or the n*m+1th MCS in the MCS table can be used as the MCS MCS.
- m and n are non-negative integers.
- the value of n may be preconfigured, or the transceiver 601 may also be used to send third information for indicating the value of n.
- the third information here may be a high-level signaling, such as configuration information.
- the MCS indication field can also be used to determine the MCS used by the data from the 2 N candidate MCSs in the MCS table, where N is a positive integer.
- 2 N candidate MCSs are pre-configured.
- the 2 N candidate MCSs are indicated by the network device 102 through configuration information.
- the transceiver 601 may also be used to send fourth information to the terminal device 101, where the fourth information is used to indicate the candidate MCSs.
- the fourth information may be configuration information carried in higher layer signaling.
- the MCS table may be the MCS index of 2 N successive alternate MCS.
- the 2 N candidate MCSs may be MCSs with discontinuous indexes in the MCS table, and the index difference between two adjacent candidate MCSs is the same, for example, between two adjacent candidate MCSs The index difference is 2.
- the above first MCS table and second MCS table are different MCS tables.
- the transceiver 601 may be used to send first information, which is used to schedule data, and the value of the bit field in the first information is used to determine the MCS table used by the data.
- first information which is used to schedule data
- the value of the bit field in the first information is used to determine the MCS table used by the data.
- the transceiver 601 can be used to receive or send data, where the MCS used for the data is determined according to the first information and the MCS table.
- the program in the memory 602 may be executed by the processor 603 to execute the MCS table and/or the MCS determination step.
- the MCS table may be the first MCS table; and/or, if the value of the bit field in the first information is greater than the first threshold
- the first threshold the MCS table may be the second MCS table.
- the MCS table may be the first MCS table; and/or, if the value of the bit field in the first information is less than the second threshold
- the MCS table may be the second MCS table.
- the above first MCS table and second MCS table are different MCS tables.
- the communication device when the communication device is a terminal device 101, its structure may also be as shown in FIG. 7. It is easy to understand and easy to illustrate.
- the terminal device uses a mobile phone as an example to illustrate the structure of the communication device.
- the communication device 700 may include a processor 701, a memory 702, and a transceiver 703.
- the above processor 701 can be used to process communication protocols and communication data, control terminal devices, execute software programs, process data of software programs, and so on.
- the memory 702 may be used to store programs and data, and the processor 701 may execute the method executed by the terminal device 101 in the embodiment of the present application based on the program.
- the transceiver 703 may include a radio frequency unit and an antenna.
- the radio frequency unit can be used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals.
- the antenna can be used to send and receive radio frequency signals in the form of electromagnetic waves.
- the radio frequency unit may only be regarded as the transceiver 703, then the communication device 700 may include a processor 701, a memory 702, a transceiver 703 and an antenna at this time.
- the communication device 700 may further include an input and output device 704, such as a touch screen, a display screen, or a keyboard, etc., which can be used to receive data input by the user and output data to the user. It should be noted that some types of communication devices may not have input and output devices.
- the transceiver 703 can be used to receive first information, and the first information is used to schedule data.
- the processor 701 may be configured to determine the modulation and coding scheme MCS table used by the data according to the scrambling identifier and target information of the first information.
- the transceiver 703 may also be used to receive or send the data, where the MCS used for the data is determined according to the first information and the MCS table.
- the MCS used by the data may also be determined by the processor 701.
- the target information may include the format of the first information, the search space where the first information is located, the second information, or part or all of the value of the bit field in the first information, where the value of the bit field Can be used to indicate the priority of the data.
- the processor 701 may determine that the format of the first information is When the first DCI format is used, determine that the MCS table is the first MCS table; and/or, when the format of the first information is the second DCI format, the processor 701 may determine that the MCS table is the second MCS table.
- the processor 701 may When the search space where the information is located is a user-specific search space, determine that the MCS table is the second MCS table; and/or, the processor 701 may determine the MCS when the search space where the first information is located is a common search space
- the form is the first MCS form.
- the processor 701 may search the index of the search space When it is greater than or equal to the index threshold, determine that the MCS table used by the data is the second MCS table; and/or, the processor 701 may determine that the MCS table is the first MCS when the index of the search space is less than the index threshold form.
- the index threshold For the setting method of the index threshold, refer to the introduction in the above method embodiment.
- the processor 701 may indicate the second MCS table when the second information indicates , Determine that the MCS table is the second MCS table; and/or, the processor 701 may determine that the MCS table is the first MCS table when the second information indicates the first MCS table.
- the processor 701 may determine a default MCS table as the MCS table, and the default MCS table may be the first MCS table.
- the processor 701 may select the value When the value is less than or equal to the first threshold, determine that the MCS table is the first MCS table; and/or, the processor 701 may determine that the MCS table is the second MCS table when the value is greater than the first threshold.
- the setting method of the first threshold refer to the introduction in the above method embodiment.
- the processor 701 may select the value When the value is greater than or equal to the second threshold, it is determined that the MCS table is the first MCS table; and/or, the processor 701 may determine that the MCS table is the second MCS table when the value is less than the second threshold.
- the setting method of the second threshold refer to the introduction in the above method embodiment.
- the processor 701 may also be configured to determine the MCS used when transmitting data according to the first information and the MCS table.
- the first information may further include an MCS indicator field, the MCS indicator field includes N bits, N is less than log 2 M, M is the number of MCS in the MCS table, M is a positive integer, and N is a non-negative integer,
- the processor 701 may be configured to determine the MCS used by the data from the MCS table according to the MCS indication field, so that data reception and transmission can be realized according to the MCS.
- the processor 701 may use the n+m+1th MCS in the MCS table as the MCS, or the processor 701 may use the nth MCS in the MCS table as the MCS. *m+1 MCS as the MCS.
- n may be pre-configured, or the transceiver 703 may also be configured to receive third information for indicating the value of n.
- the third information here may be a high-level signaling, such as configuration information.
- the processor 701 may also determine the MCS used by the data from the 2 N candidate MCSs in the MCS table according to the MCS indication field, where N is a positive integer. Among them, 2 N candidate MCSs are pre-configured. Alternatively, the 2 N candidate MCSs are indicated by the network device 102 through configuration information. At this time, the transceiver 703 may also be used to receive fourth information sent by the network device 102, where the fourth information is used to indicate the candidate MCSs. Wherein, the fourth information may be configuration information carried in higher layer signaling.
- the MCS table may be the MCS index of 2 N successive alternate MCS.
- the 2 N candidate MCSs may be MCSs with discontinuous indexes in the MCS table, and the index difference between two adjacent candidate MCSs is the same, for example, between two adjacent candidate MCSs The index difference is 2.
- the above first MCS table and second MCS table are different MCS tables.
- the transceiver 703 may be used to receive first information, and the first information is used to schedule data.
- the processor 701 may be configured to determine the MCS table used by the data according to the value of the bit field in the first information; the value of the bit field is used to indicate the priority of the service to which the data belongs.
- the transceiver 703 may also be used to receive or send the data, and the MCS used for the data is determined according to the first information and the MCS table.
- the setting method of the bit field in the above first information refer to the introduction in the above method embodiment.
- the processor 701 may be specifically configured to determine that when the value of the bit field in the first information is less than or equal to the first threshold, The MCS table is the first MCS table; and/or, the processor 701 determines that the MCS table is the second MCS table when the value of the bit field in the first information is greater than the first threshold.
- the MCS table is the first MCS table; and/or, the processor 701 determines that the MCS table is the second MCS table when the value of the bit field in the first information is greater than the first threshold.
- the processor 701 may be specifically configured to determine that the value of the bit field in the first information is greater than or equal to the second threshold
- the MCS table is the first MCS table; and/or, when the value of the bit field in the first information is less than the second threshold, the processor 701 determines that the MCS table is the second MCS table.
- the setting method of the second threshold refer to the introduction in the above method embodiment.
- the above first MCS table and second MCS table are different MCS tables.
- the above is illustrative of the components included in the communication device 600 and the communication device 700 in the embodiment, and is only a possible example, and it may have another configuration in actual implementation.
- the components of the above communication device 600 and the communication device 700 may be integrated into one module, or may be separate physical existence.
- the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules, and should not be understood as being limited to the structure shown in FIG. 6 or FIG. 7.
- the communication module 401 and the data transmission module 402 shown in FIG. 4 may include the transceiver 601 as shown in FIG. 6, and the transceiver may include a radio frequency unit, or the transceiver may include a radio frequency unit and an antenna.
- the communication device 400 shown in FIG. 4 may further include a processing module, which may be used to instruct the steps that can be performed by the processor 603 shown in FIG. 6.
- the processing module may include a processor 603 as shown in FIG. 6 or a memory 602 and a processor 603 as shown in FIG. 6.
- the processing module 501 as shown in FIG. 5 may include the processor 701 as shown in FIG. 7 or the processor 701 and the memory 702 as shown in FIG. 7.
- the communication module 501 shown in FIG. 5 may include a transceiver 603 as shown in FIG. 7, and the transceiver may include a radio frequency unit, or the transceiver may include a radio frequency unit and an antenna.
- the embodiment of the application also provides a computer-readable storage medium on which a computer program is stored.
- the program When the program is executed by a processor, the computer executes the above method embodiment and method implementation. Examples of operations performed by network devices and/or terminal devices in any possible implementation manner.
- the present application also provides a computer program product, which when invoked and executed by a computer, enables the computer to implement the above method embodiment and any possible implementation of the method embodiment In the operation performed by the first terminal device and/or the second terminal device.
- this application also provides a chip or chip system, which is coupled with a transceiver and used to implement the above method embodiment and any one of the possible implementation manners of the method embodiment. Operations performed by the terminal device and/or the second terminal device.
- "coupling" means that two components are directly or indirectly combined with each other. This combination can be fixed or movable. This combination can allow fluid, electricity, electrical signals or other types of signals to be connected to the two components. Communicate between.
- the chip system may include the chip.
- this application also provides a communication system that can be used to implement the foregoing method embodiment and any possible implementation of the method embodiment.
- the communication system has a structure as shown in FIG. 1 and/or FIG. 2.
- These computer program instructions can also be stored in a computer-readable memory that can guide a computer or other programmable data processing equipment to work in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture including the instruction device.
- the device implements the functions specified in one process or multiple processes in the flowchart and/or one block or multiple blocks in the block diagram.
- These computer program instructions can also be loaded on a computer or other programmable data processing equipment, so that a series of operation steps are executed on the computer or other programmable equipment to produce computer-implemented processing, so as to execute on the computer or other programmable equipment.
- the instructions provide steps for implementing functions specified in a flow or multiple flows in the flowchart and/or a block or multiple blocks in the block diagram.
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Abstract
本申请提供一种数据传输方法及装置。根据该方法,终端设备可接收第一信息,根据所述第一信息的加扰标识以及目标信息,确定数据使用的调制和编码方案MCS表格,所述第一信息用于调度所述数据,第一信息的加扰标识包括MCS-C-RNTI或Higher-priority-C-RNTI。以及,接收或发送所述数据,所述数据使用的MCS根据所述第一信息以及所述MCS表格确定。采用以上方法,可由终端设备根据上述第一信息的加扰标识和目标信息确定数据使用的MCS表格,根据该表格以及第一信息能够确定数据使用的MCS,从而实现MCS的确定。
Description
相关申请的交叉引用
本申请要求在2019年03月29日提交中国专利局、申请号为201910250454.7、申请名称为“一种数据传输方法及装置”的中国专利申请的优先权,其全部内容通过引用结合在本申请中。
本申请涉及移动通信技术领域,尤其涉及一种数据传输方法及装置。
在移动通信过程中,网络设备(如基站)会向用户设备(UE)(如终端)发送下行控制信息(downlink control information,DCI),该DCI可承载于物理下行控制信道(physical downlink control channel,PDCCH),该DCI可用于指示数据信道的信息,这里所述数据信道例如用于承载上行数据的物理上行共享信道(physical downlink shared channel,PUSCH),或者用于承载下行数据的物理下行共享信道(physical downlink shared channel,PDSCH)。DCI还可用于指示数据信道所采用的调制编码方案(modulation and coding scheme,MCS),使得用户设备能够根据DCI确定MCS以实现数据的正确接收。
目前,为了保证高优先级业务的传输可靠性,提出了在物理层引入标识来区分这些高优先级业务,网络设备通过这些标识加扰用于调度高优先级业务的DCI,使得这些业务在传输过程中能够优先得到处理,其中高优先级业务包括极高可靠极低时延场景(ultra-reliable and low-latency communications,URLLC)业务等等,这些用于标识高优先级业务的标识例如调制和编码方案小区无线网络临时标识(modulation and coding scheme-cell radio network tempory identity,MCS-C-RNTI),或者新定义的无线网络临时标识,如高优先级小区无线网络临时标识Higher-priority-C-RNTI,或者称为极高可靠极低时延无线网络临时标识URLLC-C-RNTI。
然而,若采用新引入的物理层标识加扰DCI,将导致原有根据DCI确定MCS的方法不再适用,用户设备无法准确实现MCS的确定,导致数据的接收失败。
发明内容
本申请提供一种数据传输方法及装置,用以在通过新引入的物理层标识加扰DCI时,实现MCS的确定。
第一方面,本申请提供一种数据传输方法,该方法可由终端设备(在本申请中也可被称为终端装置)实施。根据该方法,终端设备可接收第一信息,根据所述第一信息的加扰标识以及目标信息,确定数据使用的调制和编码方案MCS表格,所述第一信息用于调度所述数据,所述第一信息的加扰标识为调制和编码方案小区无线网络临时标识MCS-C-RNTI或高优先级小区无线网络临时标识Higher-priority-C-RNTI,所述Higher-priority-C-RNTI用于标识所述第一信息用于调度高优先级的数据。以及,接收或发 送所述数据,所述数据使用的MCS根据所述第一信息以及所述MCS表格确定。
采用以上方法,在通过MCS-C-RNTI或Higher-priority-C-RNTI加扰第一信息时,可由终端设备根据第一信息的加扰标识和目标信息确定数据使用的MCS表格,根据该表格以及第一信息能够确定数据使用的MCS,从而可实现MCS的确定。
在一种可能的设计中,目标信息可包括以下信息中的至少一个:所述第一信息的格式;或者,所述第一信息所在的搜索空间;或者,第二信息,所述第二信息用于指示所述MCS表格;或者,所述第一信息中比特域的取值,所述比特域的取值用于指示所述数据的优先级。从而可根据第一信息和以上任意目标信息实现MCS表格的灵活指示。
在一种可能的设计中,目标信息可包括所述第一信息的格式,在根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格时,若所述第一信息的格式为第一DCI格式,则终端设备可确定所述MCS表格为第一MCS表格;和/或,若所述第一信息的格式为第二DCI格式,所述终端装置可确定所述MCS表格为第二MCS表格;其中,所述第一DCI格式和第二DCI格式不同,所述第一MCS表格和第二MCS表格不同。
在一种可能的设计中,所述目标信息包括所述第一信息所在的搜索空间的信息,在根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格时,若所述第一信息所在的搜索空间为用户特定的搜索空间,所述终端装置可确定所述MCS表格为第二MCS表格;和/或,若所述第一信息所在的搜索空间为公共搜索空间,所述终端装置可确定所述MCS表格为第一MCS表格,其中,所述第一MCS表格和第二MCS表格不同。
在一种可能的设计中,目标信息包括所述第一信息所在的搜索空间的信息,在根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格时,若所述搜索空间的索引大于或等于索引阈值,所述终端装置可确定所述数据使用的MCS表格为第二MCS表格;和/或,若所述搜索空间的索引小于索引阈值,所述终端装置可确定所述MCS表格为第一MCS表格,其中,所述第一MCS表格和第二MCS表格不同。
在一种可能的设计中,所述目标信息包括第二信息,所述第二信息用于指示所述MCS表格,在根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格时,若所述第二信息指示第二MCS表格,所述终端装置可确定所述MCS表格为所述第二MCS表格;和/或,若所述第二信息指示第一MCS表格,所述终端装置可确定所述MCS表格为所述第一MCS表格,其中,所述第一MCS表格和第二MCS表格不同。
在一种可能的设计中,在终端设备确定未接收到第二信息的情况下,终端设备可将一个默认的MCS表格作为该MCS表格。这个默认的MCS表格可以是第一MCS表格,也可以是第二MCS表格。从而可以更加灵活地确定MCS表格。
在一种可能的设计中,第二信息可以是承载在高层信令中的配置信息。
在一种可能的设计中,所述目标信息包括所述第一信息中比特域的取值,在根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格时,若所述第一信息中比特域的取值小于或等于第一阈值时,所述终端装置可确定所述MCS表格为第一MCS表格;和/或,若所述第一信息中比特域的取值大于所述第一阈值,所述终端装置可确定所述MCS表格为第二MCS表格,其中,所述第一MCS表格和第二MCS 表格不同。
在一种可能的设计中,所述目标信息包括所述第一信息中比特域的取值,在根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格时,若所述第一信息中比特域的取值大于或等于第二阈值时,所述终端装置可确定所述MCS表格为第一MCS表格;和/或,若所述第一信息中比特域的取值小于所述第二阈值,所述终端装置可确定所述MCS表格为第二MCS表格,其中,所述第一MCS表格和第二MCS表格不同。第一阈值和第二阈值可以相同或者不同。
网络设备和终端设备可采用以上任一设计所述的方法确定MCS表格,能够在网络设备和终端设备之间就MCS表格的确定方式达成一致,避免由于网络设备与终端设备各自确定的MCS表格不同而导致数据无法被接收。另外,相比于直接固定使用某一个MCS表格来说,能够根据第一信息的加扰标识和目标信息在多个MCS表格中切换,从而达到不同业务优先级的数据的不同的可靠性需求,从而提高资源的利用率。此外,以上各方法在指示MCS表格时可以择一或相互结合使用,从而实现MCS表格的灵活指示。
在一种可能的设计中,第一信息可包括MCS指示域,该MCS指示域可包括N比特,N小于log
2M,M为所述MCS表格中MCS的数量,M为正整数,N为非负整数。终端设备还可以根据所述MCS指示域,从所述MCS表格中确定所述数据使用的MCS。从而,可减少第一信息中MCS指示域的长度,以降低DCI的比特数,在DCI占用相同时频资源的情况下,可以降低传输码率,达到提高DCI传输可靠性的目的。
在一种可能的设计中,在根据所述MCS指示域,从所述MCS表格中确定所述数据使用的MCS时,若所述MCS指示域的取值为m,所述终端装置可确定所述数据使用的MCS为所述MCS表格中的第n+m+1个MCS;或者,若所述MCS指示域的取值为m,所述终端装置可确定所述数据使用的MCS为所述MCS表格中的第m*n+1个MCS,其中所述m和n为非负整数。在实施中,n的取值可由网络设备通过第三信息指示。该第三信息可以是承载在高层信令中的配置信息。
在一种可能的设计中,终端设备还可从所述MCS表格的2
N个备选MCS中确定所述数据使用的MCS,N为正整数。其中,2
N个备选MCS为预配置的。或者,2
N个备选MCS是网络设备102通过配置信息指示的,此时,终端设备还可从网络设备接收第四信息,该第四信息用于指示备选MCS。
在一种可能的设计中,第四信息可以是承载在高层信令中的配置信息。
示例性的,所述2^N个备选MCS可以是MCS表格中索引连续的2
N个备选MCS。或者,所述2
N个备选MCS可以是MCS表格中索引不连续的MCS,且其中相邻的两个备选MCS之间的索引差相同,例如,相邻的两个备选MCS之间的索引差均为2。
在一种可能的设计中,以上所述第一MCS表格的频谱效率高于以上所述第二MCS表格的频谱效率,因此采用以上第二MCS表格传输数据的传输可靠性更高。示例性的,第一MCS表格为最高调制编码方式为64QAM且频谱效率比较高的MCS表格,如协议定义的表格1。第二MCS表格为最高调制编码方式为64QAM且频谱效率比较低的MCS表格,如协议定义的表格3。
另外,以上方法也可由网络设备实施。基于该方法,网络设备可以发送以上第一信息,并接收或发送数据,其中,所述第一信息用于调度所述数据,所述第一信息的加扰标识为调制和编码方案小区无线网络临时标识MCS-C-RNTI或高优先级小区无线网络临时标识 Higher-priority-C-RNTI,所述Higher-priority-C-RNTI用于标识所述第一信息用于调度高优先级的数据。所述数据使用的MCS根据所述第一信息以及所述MCS表格确定。
在一种可能的设计中,目标信息可包括以下信息中的至少一个:所述第一信息的格式;或者,所述第一信息所在的搜索空间;或者,第二信息,所述第二信息用于指示所述MCS表格;或者,所述第一信息中比特域的取值,所述比特域的取值用于指示所述数据的优先级。从而可根据第一信息和以上任意目标信息实现MCS表格的灵活指示。
在一种可能的设计中,目标信息可包括所述第一信息的格式,若所述第一信息的格式为第一DCI格式,则所述MCS表格可以是第一MCS表格;和/或,若所述第一信息的格式为第二DCI格式,所述MCS表格可以是第二MCS表格;其中,所述第一DCI格式和第二DCI格式不同,所述第一MCS表格和第二MCS表格不同。
在一种可能的设计中,所述目标信息包括所述第一信息所在的搜索空间的信息,若所述第一信息所在的搜索空间为用户特定的搜索空间,所述MCS表格可以是第二MCS表格;和/或,若所述第一信息所在的搜索空间为公共搜索空间,所述MCS表格可以是第一MCS表格,其中,所述第一MCS表格和第二MCS表格不同。
在一种可能的设计中,目标信息包括所述第一信息所在的搜索空间的信息,若所述搜索空间的索引大于或等于索引阈值,所述数据使用的MCS表格可以是第二MCS表格;和/或,若所述搜索空间的索引小于索引阈值,所述MCS表格可以是第一MCS表格,其中,所述第一MCS表格和第二MCS表格不同。
在一种可能的设计中,所述目标信息包括第二信息,所述第二信息用于指示所述MCS表格,若所述第二信息指示第二MCS表格,所述MCS表格可以是所述第二MCS表格;和/或,若所述第二信息指示第一MCS表格,所述MCS表格可以是所述第一MCS表格,其中,所述第一MCS表格和第二MCS表格不同。
在一种可能的设计中,在网络设备未发送第二信息的情况下,终端设备还可将一个默认的MCS表格作为该MCS表格。这个默认的MCS表格可以是第一MCS表格,也可以是第二MCS表格。从而可以更加灵活地指示MCS表格。
在一种可能的设计中,第二信息可以是承载在高层信令中的配置信息。
在一种可能的设计中,所述目标信息包括所述第一信息中比特域的取值,若所述第一信息中比特域的取值小于或等于第一阈值时,所述MCS表格可以是第一MCS表格;和/或,若所述第一信息中比特域的取值大于所述第一阈值,所述MCS表格可以是第二MCS表格,其中,所述第一MCS表格和第二MCS表格不同。
在一种可能的设计中,所述目标信息包括所述第一信息中比特域的取值,若所述第一信息中比特域的取值大于或等于第二阈值时,所述MCS表格可以是第一MCS表格;和/或,若所述第一信息中比特域的取值小于所述第二阈值,所述MCS表格可以是第二MCS表格,其中,所述第一MCS表格和第二MCS表格不同。第一阈值和第二阈值可以相同或者不同。
在一种可能的设计中,第一信息可包括MCS指示域,该MCS指示域可包括N比特,N小于log
2M,M为所述MCS表格中MCS的数量,M为正整数,N为非负整数。所述MCS指示域可用于从所述MCS表格中指示所述数据使用的MCS。从而,可减少第一信息中MCS指示域的长度,以降低码率。
在一种可能的设计中,若所述MCS指示域的取值为m,所述数据使用的MCS可以是 所述MCS表格中的第n+m+1个MCS;或者,若所述MCS指示域的取值为m,所述数据使用的MCS可以是所述MCS表格中的第m*n+1个MCS,其中所述m和n为非负整数。在实施中,还可由网络设备向终端设备发送第三信息,该第三信息用于指示n的取值。该第三信息可以是承载在高层信令中的配置信息。
在一种可能的设计中,所述MCS指示域还可用于从所述MCS表格的2^N个备选MCS中指示所述数据使用的MCS,N为正整数。其中,2
N个备选MCS为预配置的。或者,2
N个备选MCS是网络设备102通过配置信息指示的,此时,网络设备还可向终端设备发送第四信息,该第四信息用于指示备选MCS。
在一种可能的设计中,第四信息可以是承载在高层信令中的配置信息。
示例性的,所述2
N个备选MCS可以是MCS表格中索引连续的2
N个备选MCS。或者,所述2
N个备选MCS可以是MCS表格中索引不连续的MCS,且其中相邻的两个备选MCS之间的索引差相同,例如,相邻的两个备选MCS之间的索引差均为2。
以上所述第一MCS表格可以为最高调制方式为64QAM的高频谱效率MCS表格,第一MCS表格的名称或标志可以记做'qam64HighSE'。以上所述第二MCS表格可以为最高调制方式为64QAM的低频谱效率MCS表格,第二MCS表格的名称或标志可以记做'qam64LowSE'。
第二方面,本申请提供一种数据传输方法。该方法由终端设备执行时,终端设备可接收第一信息,该第一信息可用于调度数据,该第一信息中比特域的取值用于指示该数据的优先级。终端设备还可根据该比特域的取值确定该数据使用的MCS表格,并接收或发送该数据,其中,该数据使用的MCS是根据该第一信息以及MCS表格确定的。
采用该方法,在通过第一信息中比特域的取值指示高优先级业务的数据时,可由终端设备根据第一信息中比特域的取值确定数据使用的MCS表格,根据该MCS表格以及第一信息能够确定数据使用的MCS,从而可实现MCS的确定。
在一种可能的设计中,终端设备可在所述第一信息中比特域的取值小于或等于第一阈值时,确定所述MCS表格为第一MCS表格;和/或,终端设备可在所述第一信息中比特域的取值大于所述第一阈值时,确定所述MCS表格为第二MCS表格。
在一种可能的设计中,终端设备可在所述第一信息中比特域的取值大于或等于第二阈值时,确定所述MCS表格为第一MCS表格;和/或,终端设备可在所述第一信息中比特域的取值小于所述第二阈值时,确定所述MCS表格为第二MCS表格。
另外,该方法还可由网络设备执行。网络设备可发送第一信息,该第一信息可用于调度数据,该第一信息中比特域的取值用于指示该数据的优先级,该比特域的取值还可用于确定该数据使用的MCS表格。网络设备还可接收或发送该数据,其中,该数据使用的MCS是根据该第一信息以及MCS表格确定的。
在一种可能的设计中,在所述第一信息中比特域的取值小于或等于第一阈值时,所述MCS表格可以是第一MCS表格;和/或,在所述第一信息中比特域的取值大于所述第一阈值时,所述MCS表格可以是第二MCS表格。
在一种可能的设计中,在所述第一信息中比特域的取值大于或等于第二阈值时,所述MCS表格可以是第一MCS表格;和/或,在所述第一信息中比特域的取值小于所述第二阈值时,所述MCS表格可以是第二MCS表格。
以上所述第一MCS表格可以为最高调制方式为64QAM的高频谱效率MCS表格,第 一MCS表格的名称或标志可以记做'qam64HighSE'。以上所述第二MCS表格可以为最高调制方式为64QAM的低频谱效率MCS表格,第二MCS表格的名称或标志可以记做'qam64LowSE'。
第三方面,本申请提供一种通信装置,该通信装置可用于执行上述第一方面或第一方面的任一可能的设计或第二方面或第二方面的任一可能的设计中由终端设备执行的步骤,该通信装置可通过硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各方法中的各功能。例如,在由软件模块构成时,通信装置可包括相互耦合的通信模块、处理模块以及数据传输模块。在由硬件组件构成时,该通信装置可包括相互耦合的收发器、存储器以及处理器等等。
在执行上述第一方面所述方法时,该通信装置的通信模块可用于接收第一信息,第一信息用于调度数据,所述第一信息的加扰标识为调制和编码方案小区无线网络临时标识MCS-C-RNTI或高优先级小区无线网络临时标识Higher-priority-C-RNTI,所述Higher-priority-C-RNTI用于标识所述第一信息用于调度高优先级的数据。处理模块可用于根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格。数据传输模块可用于接收或发送该数据,其中,该数据所使用的MCS根据该第一信息以及该MCS表格确定。
在一种可能的设计中,目标信息可包括第一信息的格式、第一信息所在的搜索空间、第二信息或者第一信息中比特域的取值中的部分或全部信息,其中,该比特域的取值可用于指示所述数据的优先级。
在一种可能的设计中,若目标信息包括第一信息的格式,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块可在所述第一信息的格式为第一DCI格式时,确定所述MCS表格为第一MCS表格;和/或,处理模块可在第一信息的格式为第二DCI格式时,确定所述MCS表格为第二MCS表格。
在一种可能的设计中,若目标信息包括所述第一信息所在的搜索空间的信息,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块可在第一信息所在的搜索空间为用户特定的搜索空间时,确定所述MCS表格为第二MCS表格;和/或,处理模块可在第一信息所在的搜索空间为公共搜索空间时,确定所述MCS表格为第一MCS表格。
在一种可能的设计中,若目标信息包括第一信息所在的搜索空间的信息,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块可在搜索空间的索引大于或等于索引阈值时,确定所述数据使用的MCS表格为第二MCS表格;和/或,处理模块可在所述搜索空间的索引小于索引阈值时,确定所述MCS表格为第一MCS表格。
在一种可能的设计中,若目标信息包括该第二信息,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块可在第二信息指示第二MCS表格时,确定所述MCS表格为所述第二MCS表格;和/或,处理模块可在第二信息指示第一MCS表格时,确定所述MCS表格为所述第一MCS表格。
在一种可能的设计中,在确定未接收到第二信息的情况下,处理模块可将一个默认的MCS表格确定为该MCS表格,这个默认的MCS表格可以是第一MCS表格,也可以是第二MCS表格。
在一种可能的设计中,第二信息可以是承载在高层信令中的配置信息。
在一种可能的设计中,若目标信息包括该第一信息中比特域的取值,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块可在该取值小于或等于第一阈值时,确定所述MCS表格为第一MCS表格;和/或,处理模块可在该取值大于所述第一阈值时,确定所述MCS表格为第二MCS表格。
在一种可能的设计中,若目标信息包括该第一信息中比特域的取值,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块可在该取值大于或等于第二阈值时,确定所述MCS表格为第一MCS表格;和/或,处理模块可在该取值小于所述第二阈值时,确定所述MCS表格为第二MCS表格。
在一种可能的设计中,第一信息还可以包括MCS指示域,所述MCS指示域包括N比特,N小于log
2M,M为所述MCS表格中MCS的数量,M为正整数,N为非负整数,所述处理模块还可用于根据该MCS指示域,从所述MCS表格中确定所述数据使用的MCS,从而可根据MCS实现数据的接收和发送。
在一种可能的设计中,在确定MCS时,若MCS指示域的取值为m,处理模块可将MCS表格中的第n+m+1个MCS作为所述MCS,或者,处理模块可将MCS表格中的第n*m+1个MCS作为所述MCS。其中,m和n为非负整数。
在一种可能的设计中,n的取值可以是预配置的,或者,通信模块还可用于接收用于指示n的取值的第三信息。该第三信息可以是承载在高层信令中的配置信息。
在一种可能的设计中,处理模块还可根据所述MCS指示域,从所述MCS表格的2
N个备选MCS中确定所述数据使用的MCS,N为正整数。其中,2
N个备选MCS为预配置的。或者,2
N个备选MCS是网络设备通过配置信息指示的,此时,通信模块还可用于接收网络设备发送的第四信息,该第四信息用于指示备选MCS。
在一种可能的设计中,第四信息可以是承载在高层信令中的配置信息。
在一种可能的设计中,所述2
N个备选MCS可以是MCS表格中索引连续的2
N个备选MCS。或者,所述2
N个备选MCS可以是MCS表格中索引不连续的MCS,且其中相邻的两个备选MCS之间的索引差相同,例如,相邻的两个备选MCS之间的索引差均为2。
在执行上述第二方面所述方法时,该通信装置的通信模块可用于接收第一信息,该第一信息用于调度数据,该第一信息中比特域的取值用于指示该数据的优先级。处理模块可用于根据第一信息中比特域的取值,确定该数据使用的MCS表格;该比特域的取值用于指示所述数据所属业务的优先级。数据传输模块可用于接收或发送该数据,其中该数据使用的MCS是分解该地以信息以及该MCS表格确定的。
在一种可能的设计中,在根据第一信息中比特域的取值,确定该数据使用的MCS表格时,处理模块具体可用于在所述第一信息中比特域的取值小于或等于第一阈值时,确定所述MCS表格为第一MCS表格;和/或,处理模块在所述第一信息中比特域的取值大于所述第一阈值时,确定所述MCS表格为第二MCS表格。
在一种可能的设计中,在根据第一信息中比特域的取值,确定该数据使用的MCS表格时,处理模块具体可用于在所述第一信息中比特域的取值大于或等于第二阈值时,确定所述MCS表格为第一MCS表格;和/或,处理模块在所述第一信息中比特域的取值小于所述第二阈值时,确定所述MCS表格为第二MCS表格。
另外,在通过硬件组件实现以上通信装置时,可由处理器执行以上处理模块所执行的 步骤,以及,由收发器执行以上通信模块和/或数据传输模块所执行的步骤。
第四方面,本申请提供一种通信装置,该通信装置可用于执行上述第一方面或第一方面的任一可能的设计或第二方面或第二方面的任一可能的设计中由网络设备执行的步骤,该通信装置可通过硬件结构、软件模块、或硬件结构加软件模块的形式来实现上述各方法中的各功能。例如,在由软件模块构成时,通信装置可包括相互耦合的通信模块以及数据传输模块。在由硬件组件构成时,该通信装置可包括相互耦合的收发器、存储器以及处理器等等。
在执行上述第一方面所示方法时,该通信装置的通信模块可用于发送第一信息,第一信息用于调度数据,所述第一信息的加扰标识为调制和编码方案小区无线网络临时标识MCS-C-RNTI或高优先级小区无线网络临时标识Higher-priority-C-RNTI,所述Higher-priority-C-RNTI用于标识所述第一信息用于调度高优先级的数据。数据传输模块可用于接收或发送该数据,其中,第一信息的加扰标识以及目标信息用于确定所述数据使用的MCS表格,该数据所使用的MCS根据该第一信息以及该MCS表格确定。
在一种可能的设计中,目标信息可包括第一信息的格式、第一信息所在的搜索空间、第二信息或者第一信息中比特域的取值中的部分或全部信息,其中,该比特域的取值可用于指示所述数据的优先级。
在一种可能的设计中,若目标信息包括第一信息的格式,且该第一信息的格式为第一DCI格式,所述MCS表格可以是第一MCS表格;和/或,若第一信息的格式为第二DCI格式,则所述MCS表格可以是第二MCS表格。
在一种可能的设计中,若目标信息包括所述第一信息所在的搜索空间的信息,在第一信息所在的搜索空间为用户特定的搜索空间时,所述MCS表格可以是第二MCS表格;和/或,在第一信息所在的搜索空间为公共搜索空间时,所述MCS表格可以是第一MCS表格。
在一种可能的设计中,若目标信息包括第一信息所在的搜索空间的信息,在搜索空间的索引大于或等于索引阈值时,所述数据使用的MCS表格可以是第二MCS表格;和/或,在所述搜索空间的索引小于索引阈值时,所述MCS表格可以是第一MCS表格。
在一种可能的设计中,若目标信息包括该第二信息,在第二信息指示第二MCS表格时,所述MCS表格可以是所述第二MCS表格;和/或,在第二信息指示第一MCS表格时,所述MCS表格可以是所述第一MCS表格。
在一种可能的设计中,在未发送第二信息的情况下,可将一个默认的MCS表格作为该MCS表格,这个默认的MCS表格可以是第一MCS表格,也可以是第二MCS表格。
在一种可能的设计中,第二信息可以是承载在高层信令中的配置信息。
在一种可能的设计中,若目标信息包括该第一信息中比特域的取值,在该取值小于或等于第一阈值时,所述MCS表格可以是第一MCS表格;和/或,在该取值大于所述第一阈值时,所述MCS表格可以是第二MCS表格。
在一种可能的设计中,若目标信息包括该第一信息中比特域的取值,在该取值大于或等于第二阈值时,所述MCS表格可以是第一MCS表格;和/或,在该取值小于所述第二阈值时,所述MCS表格可以是第二MCS表格。
在一种可能的设计中,第一信息还可以包括MCS指示域,其中,所述MCS指示域包括N比特,N小于log
2M,M为所述MCS表格中MCS的数量,M为正整数,N为非负整 数,所述MCS指示域可用于从所述MCS表格中确定所述数据使用的MCS。
在一种可能的设计中,若MCS指示域的取值为m,可将MCS表格中的第n+m+1个MCS作为所述MCS,或者,可将MCS表格中的第n*m+1个MCS作为所述MCS。其中,m和n为非负整数。
在一种可能的设计中,n的取值可以是预配置的,或者,通信模块还可用于发送用于指示n的取值的第三信息。该第三信息可以是承载在高层信令中的配置信息。
在一种可能的设计中,MCS指示域还可用于从所述MCS表格的2
N个备选MCS中确定所述数据使用的MCS,N为正整数。其中,2
N个备选MCS为预配置的。或者,2
N个备选MCS是网络设备通过配置信息指示的,此时,通信模块还可用于向终端设备发送第四信息,该第四信息用于指示备选MCS。
在一种可能的设计中,第四信息可以是承载在高层信令中的配置信息。
在一种可能的设计中,所述2
N个备选MCS可以是MCS表格中索引连续的2
N个备选MCS。或者,所述2
N个备选MCS可以是MCS表格中索引不连续的MCS,且其中相邻的两个备选MCS之间的索引差相同,例如,相邻的两个备选MCS之间的索引差均为2。
在执行如图2所示方法时,通信模块可用于发送第一信息,该第一信息用于调度数据,第一信息中比特域的取值用于确定所述数据使用的MCS表格。数据传输模块可用于接收或发送数据,其中,该数据所使用的MCS根据该第一信息以及该MCS表格确定。
在一种可能的设计中,若所述第一信息中比特域的取值小于或等于第一阈值,则所述MCS表格可以是第一MCS表格;和/或,若所述第一信息中比特域的取值大于所述第一阈值,则所述MCS表格可以是第二MCS表格。
在一种可能的设计中,若所述第一信息中比特域的取值大于或等于第二阈值,则所述MCS表格可以是第一MCS表格;和/或,若所述第一信息中比特域的取值小于所述第二阈值,则所述MCS表格可以是第二MCS表格。
另外,在通过硬件组件实现以上通信装置时,可由收发器执行以上通信模块和/或数据传输模块所执行的步骤。
第五方面,本申请提供一种通信系统,该通信系统可以包括第三方面所述的通信装置和/或第四方面所述的通信装置。
第六方面,本申请提供一种计算机存储介质,所述计算机存储介质中存储有指令(或称程序),当其在计算机上被调用执行时,使得计算机执行上述第一方面或第一方面的任意一种可能的设计中所述的方法,或用于执行上述第二方面或第二方面的任一可能的设计中所述的方法。
第七方面,本申请提供一种计算机程序产品,该计算基础产品可包含指令,当所述计算机程序产品在计算机上运行时,使得计算机执行上述第一方面或第一方面的任一可能的设计中所述的方法,或用于执行上述第二方面或第二方面的任一可能的设计中所述的方法。
第八方面,本申请提供一种芯片或包含芯片的芯片系统,该芯片可包括处理器。该芯片还可以包括存储器和/或通信模块。该芯片可用于执行上述第一方面或第一方面的任一种可能的设计中所述的方法,或用于执行上述第二方面或第二方面的任一可能的设计中所述的方法。该芯片系统可以由上述芯片构成,也可以包含上述芯片和其他分立器件,如通信模块。
上述第二方面至第八方面及其可能的设计中的有益效果可以参考对第一方面及其任 一可能的设计中所述方法的有益效果的描述。
图1为本申请提供的一种无线通信系统的架构示意图;
图2为本申请提供的一种数据传输方法的流程示意图;
图3为本申请提供的另一种数据传输方法的流程示意图;
图4为本申请提供的一种通信装置的结构示意图;
图5为本申请提供的另一种通信装置的结构示意图;
图6为本申请提供的另一种通信装置的结构示意图;
图7为本申请提供的另一种通信装置的结构示意图。
为了使本申请的目的、技术方案和优点更加清楚,下面将结合附图对本申请作进一步地详细描述。方法实施例中的具体操作方法也可以应用于装置实施例或系统实施例中。
下面对本申请涉及术语进行解释:
至少一个,是指一个,或一个以上,即包括一个、两个、三个及以上。
多个,是指两个,或两个以上,即包括两个、三个及以上。
携带,可以是指某消息用于承载某信息或数据,也可以是指某消息由某信息构成。
耦合是指装置、单元或模块之间的间接耦合或通信连接,可以是电性,机械或其它的形式,用于装置、单元或模块之间的信息交互。
DCI:可用于承载上下行数据的调度信息。其中,上下行数据包括上行数据和/或下行数据,下行数据可承载在PDSCH上,上行数据可承载在PUSCH上。下行控制信息DCI中的调度信息可包括数据时域资源指示信息,频域资源指示信息,以及数据信道采用的调制编码方案MCS等。这些信息都是接收上下行数据的必须信息,例如时域或者频域资源指示信息,用于确定接收数据的时域和频域资源,调制编码方式MCS用于确定在该时频资源上传输的数据使用的码率,用户可以根据码率以及指示的时频资源的大小确定数据的大小,或者说数据的比特数,从而才能正确的接收到数据。
无线网络临时标识:在发送DCI时,网络设备可通过无线网络临时标识对DCI进行加扰,终端设备可根据该标识对DCI进行解扰,通过该标识可实现用户识别,或者对DCI的特殊功能进行识别。目前常用的无线网络临时标识包括小区无线网络临时标识(cell radio network tempory identity,C-RNTI)、MCS-C-RNTI以及配置调度无线网络临时标识(configured schedulingradio network tempory identity,CS-RNTI)等等。其中,网络设备可以为每个终端设备分配小区无线网络临时标识C-RNTI,在使用C-RNTI加扰DCI时,终端设备可以使用自己的C-RNTI进行解扰,从而接收网络设备发送给自己的DCI。在通过MCS-C-RNTI加扰DCI时,可标识可靠性比较高的MCS表格。CS-RNTI主要是在半持续调度(semi-persistent scheduling,SPS)PDSCH的激活、去激活以及上行免调度指示中用到的标识。
DCI格式:本申请中,将有不同DCI内容,和/或,不同DCI比特数的DCI称为不同格式的DCI。目前,用于数据调度的DCI格式主要包括四种,其中DCI格式1_0和DCI 格式0_0都是用于调度PUSCH的DCI格式。其中DCI格式1_1和DCI格式0_1都是用于调度PDSCH的DCI格式。为了支持高优先级业务,可能引入一种新的DCI格式,我们称之为DCI格式1_2,这种DCI格式可以通过配置信息确定为具体的比特数,比特数可以小于现有的所有DCI格式的比特数,这种DCI格式可以用于调度高优先级的业务。
DCI的搜索空间:搜索空间是网络设备给终端设备指示的一些可能发送DCI的候选位置,终端设备通过在搜索空间中检测有无对应的DCI来接收DCI。如果接收到DCI则该DCI的搜索空间就是这个DCI的搜索空间。搜索空间有公共搜索空间(common search space,CSS)和用户特定搜索空间(UE-specific search space,USS)之分。搜索空间有一个标识(如索引),并且每个搜索空间都对应一个类型,或者是公共搜索空间或者是用户特定搜索空间,取决于接收到的每个搜索空间的类型配置信息。该类型配置信息可承载于配置信息。
配置信息:在本申请中是指网络设备通过高层信令发送的指示信息,该高层信令可以是指高层协议层发出的信令,高层协议层为物理层以上的至少一个协议层。其中,高层协议层具体可以包括以下协议层中的至少一个:媒体接入控制(medium access control,MAC)层、无线链路控制(radio link control,RLC)层、分组数据会聚协议(packet data convergence protocol,PDCP)层、无线资源控制(radio resource control,RRC)层和非接入层(non access stratum,NAS)。终端设备在接入网络以后,会收到配置信息,包括针对PDCCH,PDSCH,SPS PDSCH,上行免调度等的信息,以使得后续数据和网络能正常的通信。
SPS PDSCH:即半持续调度的数据,是网络设备发送配置信息指示数据的周期等信息,然后网络设备会发送一个激活PDCCH进行激活,激活PDCCH中会指示时频资源信息以及MCS信息,等,从此以后不再发送PDCCH,按照配置信息指示的周期进行数据发送。所以对于第一个SPS PDSCH来说有对应的DCI,也就是有调度信息的SPS PDSCH,后面的SPSPDSCH都是没有调度信息的SPS PDSCH,因为是按照周期发送。
上行免调度:上行免调度包括2种类型,类型1是指所有的数据通信的信息都是网络设备通过配置信息指示终端设备配置好的,之后网络设备在发数据时就直接采用该配置发送数据,不需要额外发送任何的PDCCH指示。类型2,是指SPS PUSCH,和下行的SPS PDSCH的过程类似,不过这个是用户设备给网络设备发送数据,可参照前述对于SPS PDSCH的说明。
有/无转换预编码(transform precoding)的PUSCH:现有针对PUSCH有2种波形,有transform precoding的PUSCH对应于单载波正交频分复用(synchronous coherent orthogonal frequency division multiplexing,SC-OFDM)波形,无transform precoding的PUSCH对应于循环前缀正交频分复用技术(cyclic prefix-orthogonal frequency division multiplexing,CP-OFDM)波形,上行PUSCH传输具体是哪一种波形可由网络设备通过配置信息指示。
另外应理解,本申请实施例中,“和/或”,描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B的情况,其中A、B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一(项)个”或其类似表达,是指的这些项中的任意组合,包括单项(个)或复数项(个)的任意组合。例如,a、b或c中的至少一项(个),可以表示:a,b,c,a和b,a和c,b和c,或a、b和c,其中a、b、c可以是单个,也可以是多个。
下面,结合附图对本申请实施例进行详细说明。首先,介绍本申请实施例提供的无线通信系统,本申请提供的传输资源指示方法可应用于该系统,然后介绍本申请实施例提供的传输资源指示方法,最后介绍本申请实施例提供的通信装置。
如图1所示,本申请实施例提供的无线通信系统100可包括终端设备101以及网络设备102。
应理解,本申请实施例提供的无线通信系统100,即可适用于低频场景(sub 6G),也适用于高频场景(above6G)。本申请实施例提供的无线通信系统100的应用场景包括但不限于全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统、未来的第五代(5th Generation,5G)系统或新无线(new radio,NR)通信系统等。
以上所示终端设备101可以是用户设备(user equipment,UE)、终端(terminal)、移动台(mobile station,MS)、移动终端(mobile terminal)等设备,该终端设备101能够与一个或多个通信系统的一个或多个网络设备进行通信,并接受网络设备提供的网络服务,这里的网络设备包括但不限于图示网络设备102。举例来说,本申请实施例中的终端设备101可以是移动电话(或称为“蜂窝”电话)、具有移动终端的计算机等,终端设备101还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。终端设备101也可以是具有通信模块的通信芯片。
网络设备102可包括基站(base station,BS),或包括基站以及用于控制基站的无线资源管理设备等,该网络设备102可以为中继站(中继设备)、接入点、车载设备、可穿戴设备以及未来5G网络中的基站、未来演进的公共陆地移动网络(public land mobile network,PLMN)网络中的基站或者NR基站等,本申请实施例并不限定。网络设备102也可以是具有通信模块的通信芯片。
本申请实施例提供的数据传输方法可由如图1所示通信系统实现,通过该方法可实现高优先度业务数据的传输。下面,对本申请实施例提供的数据传输方法进行介绍,如图2所示,所述方法可包括以下步骤:
S101:网络设备102发送第一信息,该第一信息用于调度数据,该第一信息的加扰标识为MCS-C-RNTI或高优先级小区无线网络临时标识Higher-priority-C-RNTI。其中,所述Higher-priority-C-RNTI用于标识所述第一信息用于调度高优先级的数据。具体的,第一信息可以是网络设备102向终端设备101发送的DCI,该DCI可用于调度网络设备102与终端设备101之间的上下行数据。
应理解,S101所涉及的高优先级的数据,包括高优先级业务的数据,如URLLC业务的数据。网络设备102可通过MCS-C-RNTI标识或Higher-priority-C-RNTI标识加扰该第一信息,以指示所述数据为高优先级的数据。这里Higher-priority-C-RNTI标识仅仅是举例说明,本申请并不限制只能通过Higher-priority-C-RNTI作为新的标识对DCI加扰以指示高优先级的数据,如果引入URLLC-RNTI或者另外的标识作为所述新的标识,应理解本申 请实施例中的所述Higher-priority-C-RNTI可以替换为URLLC-RNTI或者所述另外的标识。
另外,网络设备102在用加扰标识识别业务优先级的同时,还可在第一信息中通过比特域指示该数据为同种优先级的业务下的进一步的优先级。例如,某一个DCI通过Higher-priority-C-RNTI加扰,则确定该第一信息调度了高优先级的数据,并且在该DCI中有比特域,指示此类高优先级的数据中进一步细化的优先级。
S102:终端设备101接收第一信息;
S103:终端设备101根据第一信息的加扰标识以及目标信息,确定所述数据使用的MCS表格。
S104:网络设备102与终端设备101之间进行数据传输,其中,该数据使用的MCS根据所述第一信息以及所述MCS表格确定。具体的,进行数据传输包括网络设备102向终端设备101发送下行数据,此时,由网络设备102发送数据,并由终端设备101接收该数据。或者,进行数据传输包括终端设备101向网络设备102发送上行数据,此时,由终端设备101发送数据,并由网络设备102接收该数据。
采用以上方法,在通过MCS-C-RNTI或Higher-priority-C-RNTI加扰第一信息时,可由终端设备101根据第一信息的加扰标识和目标信息确定数据使用的MCS表格,根据该表格以及第一信息能够确定数据使用的MCS,从而终端设备101可实现MCS的确定。
示例性的,S103所涉及的目标信息可以包括第一信息的格式、第一信息所在的搜索空间、第二信息或者第一信息中比特域的取值中的部分或全部信息。其中,第二信息用于指示MCS表格。该第二信息为配置信息,因此所述MCS表格可由网络设备102向终端设备101指示。该第一信息中比特域的取值,可用于指示该DCI所调度数据所属业务的优先级,例如,在DCI中使用2比特(bit)的比特域,将其取值配置为0、1、2或者3,已分别指示该业务的优先级为0、1、2或者3,该0、1、2或者3的取值依次对应优先级由低到高,或者优先级从高到低。
根据本申请实施例所示方法,网络设备102可根据第一信息的加扰标识和目标信息指示某一个MCS表格,相应地,终端设备101可基于本申请实施例提供的方法,根据该第一信息的加扰标识和该目标信息确定该MCS表格,从而,可以在网络设备102与终端设备101之间就MCS表格的确定方式达成一致,避免网络设备102与终端设备101各自确定的MCS表格不同而导致数据无法被接收。进一步地,相比于直接固定使用某一个MCS表格来说,能够根据第一信息的加扰标识和目标信息在多个MCS表格中切换,从而达到不同业务优先级的数据的不同的可靠性需求,从而提高资源的利用率。
下面以第一信息为DCI为例,具体介绍本申请实施例提供的几种根据第一信息的加扰标识和目标信息确定数据使用的MCS表格的方法。应理解,网络设备102可采用同样的方法确定MCS表格,和/或,网络设备102可根据该方法,先选定传输数据使用的MCS表格,之后根据该MCS表格反向推导第一信息的加扰标识和目标信息,并采用该加扰标识和目标信息发送DCI。
应理解,这里所列举的方案仅仅是对于本申请实施例的举例说明,不应理解为本申请实施例仅包含以下所列举的几种实现方式。
方式一,根据DCI的加扰标识以及DCI的格式,确定MCS表格。
具体的,当所述加扰标识为MCS-C-RNTI或Higher-priority-C-RNTI时,若第一信息的格式为第一DCI格式,终端设备101确定所述MCS表格为第一MCS表格;或者,若第 一信息的格式为第二DCI格式,终端设备101确定所述MCS表格为第二MCS表格。其中,第一DCI格式与第二DCI格式为不同的DCI格式。
或者,具体的,当所述加扰标识为MCS-C-RNTI或Higher-priority-C-RNTI时,若第一信息的格式为第一DCI格式,终端设备101确定所述MCS表格为第二MCS表格;或者,若第一信息的格式为第二DCI格式,终端设备101确定所述MCS表格为第一MCS表格。其中,第一DCI格式与第二DCI格式为不同的DCI格式。
举例来说,当网络设备102为终端设备101分配了MCS-C-RNTI并以该MCS-C-RNTI加扰所述DCI,并且所述DCI的格式为1_1时,终端设备101可确定MCS表格为第一MCS表格。或者,当网络设备102为终端设备101分配了MCS-C-RNTI并以该MCS-C-RNTI加扰所述DCI,并且所述DCI的格式为1_2时,终端设备101可确定MCS表格为第二MCS表格。
另外,当网络设备102以Higher-priority-C-RNTI加扰所述DCI,并且所述DCI的格式为1_1时,终端设备101可确定MCS表格为第一MCS表格。或者,当网络设备102以Higher-priority-C-RNTI加扰所述DCI,并且所述DCI的格式为1_2时,终端设备101可确定MCS表格为第二MCS表格。
通过本方式一所述的方法,根据该DCI加扰标识确定了业务的优先级之后,结合DCI的不同格式,确定不同的MCS表格。首先,使用这种规则,可以在网络设备102与终端设备101之间就MCS表格的确定方式达成一致,避免网络设备102与终端设备101各自确定的MCS表格不同而导致数据无法被接收。其次,相比于直接固定使用某一个MCS表格来说,能够根据DCI加扰标识和DCI的格式在多个MCS表格中切换,从而达到不同业务优先级的数据的不同的可靠性需求,从而提高资源的利用率。
方式二,根据DCI的加扰标识以及DCI的搜索空间,确定MCS表格。
在一种可能的实现方式中,可根据DCI的加扰标识以及DCI的搜索空间是用户特定的搜索空间还是公共搜索空间,实现MCS表格的确定。具体的,当所述加扰标识为MCS-C-RNTI或Higher-priority-C-RNTI时,若该DCI所在的搜索空间为用户特定的搜索空间时,终端设备101确定所述MCS表格为第二MCS表格;或者,若DCI所在的搜索空间为公共搜索空间时,终端设备101确定所述MCS表格为第一MCS表格。
或者,在一种可能的实现方式中,可根据DCI的加扰标识以及DCI的搜索空间是用户特定的搜索空间还是公共搜索空间,实现MCS表格的确定。具体的,当所述加扰标识为MCS-C-RNTI或Higher-priority-C-RNTI时,若该DCI所在的搜索空间为用户特定的搜索空间时,终端设备101确定所述MCS表格为第一MCS表格;或者,若DCI所在的搜索空间为公共搜索空间时,终端设备101确定所述MCS表格为第二MCS表格。
举例来说,当网络设备102为终端设备101分配了MCS-C-RNTI并以该MCS-C-RNTI加扰所述DCI,并且所述DCI所在的搜索空间为用户特定的搜索空间时,终端设备101可确定MCS表格为第二MCS表格。或者,当网络设备102为终端设备101分配了MCS-C-RNTI并以该MCS-C-RNTI加扰所述DCI,并且所述DCI所在的搜索空间为公共搜索空间时,终端设备101可确定MCS表格为第一MCS表格。
另外,当网络设备102以Higher-priority-C-RNTI加扰所述DCI,并且所述DCI所在的搜索空间为用户特定的搜索空间时,终端设备101可确定MCS表格为第二MCS表格。或者,当网络设备102以Higher-priority-C-RNTI加扰所述DCI,并且所述DCI所在的搜索空 间为公共搜索空间时,终端设备101可确定MCS表格为第一MCS表格。
在另一种可能的实现方式中,还可根据DCI的加扰标识以及DCI的搜索空间的索引,实现MCS表格的确定。具体的,当所述加扰标识为MCS-C-RNTI或Higher-priority-C-RNTI时,若该DCI所在的搜索空间的索引大于或等于索引阈值时,终端设备101确定所述MCS表格为第二MCS表格;或者,若DCI所在的搜索空间的索引小于索引阈值时,终端设备101确定所述MCS表格为第一MCS表格。其中,第一MCS表格与第二MCS表格为不同的MCS表格。在实施中,索引阈值可由网络设备102通过配置信息指示给终端设备101,或者,索引阈值可以由协议定义或通过预配置的方式确定。
在另一种可能的实现方式中,还可根据DCI的加扰标识以及DCI的搜索空间的索引,实现MCS表格的确定。具体的,当所述加扰标识为MCS-C-RNTI或Higher-priority-C-RNTI时,若该DCI所在的搜索空间的索引小于或等于索引阈值时,终端设备101确定所述MCS表格为第二MCS表格;或者,若DCI所在的搜索空间的索引大于索引阈值时,终端设备101确定所述MCS表格为第一MCS表格。其中,第一MCS表格与第二MCS表格为不同的MCS表格。在实施中,索引阈值可由网络设备102通过配置信息指示给终端设备101,或者,索引阈值可以由协议定义或通过预配置的方式确定。
举例来说,可以通过i表示DCI所在的搜索空间的索引,i=0、1、2、……、N,N为搜索空间的数量,以k表示索引阈值,k=0、1、2、……、N。当网络设备102以MCS-C-RNTI加扰所述DCI,并且所述DCI所在的搜索空间的索引i大于等于k时,终端设备101可确定数据使用的MCS表格为第二MCS表格。或者,当网络设备102为终端设备101分配了MCS-C-RNTI并以该MCS-C-RNTI加扰所述DCI,并且所述DCI所在的搜索空间的索引i小于k时,终端设备101可确定MCS表格为第一MCS表格。
另外,当网络设备102以Higher-priority-C-RNTI加扰所述DCI,并且所述DCI所在的搜索空间的索引i大于等于k时,终端设备101可确定MCS表格为第一MCS表格。或者,当网络设备102以Higher-priority-C-RNTI加扰所述DCI,并且所述DCI所在的搜索空间的索引i小于k时,终端设备101可确定MCS表格为第二MCS表格。
需要说明是,在DCI所在的搜索空间的索引等于索引阈值时,终端设备确定的MCS表格可以和DCI所在的搜索空间的索引小于索引阈值时的MCS表格相同,或者和DCI所在的搜索空间的索引大于索引阈值时的MCS表格相同。
通过本方式二所述的方法,根据该DCI加扰标识确定了业务的优先级之后,结合DCI所在的搜索空间的类型或索引,确定不同的MCS表格。首先,使用这种规则,可以在网络设备102与终端设备101之间就MCS表格的确定方式达成一致,避免网络设备102与终端设备101各自确定的MCS表格不同而导致数据无法被接收。其次,相比于直接固定使用某一个MCS表格来说,能够根据DCI加扰标识和DCI所在的搜索空间的类型或索引在多个MCS表格中切换,从而达到不同业务优先级的数据的不同的可靠性需求,从而提高资源的利用率。
方式三,根据DCI的加扰标识以及第二信息,确定MCS表格。
具体的,当第二信息指示第二MCS表格时,终端设备101确定该第二MCS表格为所述数据使用的MCS表格。或者,当第二信息指示第一MCS表格时,终端设备101确定该第一MCS表格为所述数据使用的MCS表格。
在实施中,第二信息可包括MCS表格的索引,如,第二信息可携带第一MCS表格的 索引(如索引0),以指示第一MCS表格。或者,第二信息可以是配置信息中的特定比特位,该特定比特位的取值可用于指示MCS表格,例如,当特定比特位被配置为0时,第二信息可用于指示第一MCS表格,当特定比特位被配置为1时,第二信息可用于指示第二MCS表格;或者,第二信息可以携带MCS表格的名称或标志,以指示MCS表格。例如,当第二信息携带的MCS表格的名称和标志为第一MCS表格的名称或标志时,确定数据使用的MCS表格为第一MCS表格,或者,当第二信息携带的MCS表格的名称和标志为第二MCS表格的名称或标志时,确定数据使用的MCS表格为第二MCS表格。
示例性的,当网络设备102为终端设备101分配了MCS-C-RNTI并以该MCS-C-RNTI加扰所述DCI,并且网络设备102向终端设备101发送的第二信息指示第一MCS表格时,终端设备101可确定MCS表格为第一MCS表格。或者,当网络设备102为终端设备101分配了MCS-C-RNTI并以该MCS-C-RNTI加扰所述DCI,并且网络设备102向终端设备101发送的第二信息指示第二MCS表格时,终端设备101可确定MCS表格为第二MCS表格。
当网络设备102以Higher-priority-C-RNTI加扰所述DCI,并且网络设备102向终端设备101发送的第二信息指示第一MCS表格时,终端设备101可确定MCS表格为第一MCS表格。或者,当网络设备102以Higher-priority-C-RNTI加扰所述DCI,并且网络设备102向终端设备101发送的第二信息指示第二MCS表格时,终端设备101可确定MCS表格为第二MCS表格。
另外,当网络设备102以MCS-C-RNTI或Higher-priority-C-RNTI加扰DCI时,若第二信息指示第二MCS表格时,终端设备101确定该第二MCS表格为所述数据使用的MCS表格。若终端设备101确定未接收到网络设备102发送的第二信息,则终端设备101可默认以第一MCS表格作为所述数据使用的MCS表格;另外,当网络设备102以MCS-C-RNTI或Higher-priority-C-RNTI加扰DCI时,若第二信息指示第一MCS表格时,终端设备101确定该第一MCS表格为所述数据使用的MCS表格。若终端设备101确定未接收到网络设备102发送的第二信息,则终端设备101可默认以第二MCS表格作为所述数据使用的MCS表格。
通过本方式三所述的方法,根据该DCI加扰标识确定了业务的优先级之后,第二信息,确定不同的MCS表格。首先,使用这种规则,可以在网络设备102与终端设备101之间就MCS表格的确定方式达成一致,避免网络设备102与终端设备101各自确定的MCS表格不同而导致数据无法被接收。其次,相比于直接固定使用某一个MCS表格来说,能够根据DCI加扰标识和第二信息在多个MCS表格中切换,从而达到不同业务优先级的数据的不同的可靠性需求,从而提高资源的利用率。
方法四,根据DCI的加扰标识以及DCI中比特域的取值,确定MCS表格。其中,该比特域的取值可用于指示业务的优先级。
具体的,当DCI中比特域的取值小于或等于第一阈值时,终端设备101确定所述MCS表格为第一MCS表格。当DCI中比特域的取值大于所述第一阈值时,终端设备101确定所述MCS表格为第二MCS表格。这里第一阈值可以由网络设备102通过配置信息向终端设备101指示,也可以由协议定义或者通过预配置的方式确定。
需要说明是,在DCI中比特域的取值等于第一阈值时,终端设备确定的MCS表格可以和DCI中比特域的取值大于第一阈值时的MCS表格相同,或者DCI中比特域的取值小 于第一阈值时的MCS表格相同。
示例性的,若DCI中比特域的取值为0、1、2或者3,则第一阈值可以为1。当网络设备102为终端设备101分配了MCS-C-RNTI并以该MCS-C-RNTI加扰所述DCI,并且所述DCI中比特域的取值为0或1时,终端设备101可确定MCS表格为第一MCS表格。或者,当网络设备102为终端设备101分配了MCS-C-RNTI并以该MCS-C-RNTI加扰所述DCI,并且所述DCI中比特域的取值为2或3时,终端设备101可确定MCS表格为第二MCS表格。
当网络设备102以Higher-priority-C-RNTI加扰所述DCI,并且所述DCI中比特域的取值为0或1时,终端设备101可确定MCS表格为第一MCS表格。或者,当网络设备102以Higher-priority-C-RNTI加扰所述DCI,并且所述DCI中比特域的取值为2或3时,终端设备101可确定MCS表格为第二MCS表格。
和/或,当DCI中比特域的取值大于或等于第二阈值时,终端设备101确定所述MCS表格为第一MCS表格。当DCI中比特域的取值小于所述第二阈值时,终端设备101确定所述MCS表格为第二MCS表格。其中,所述第二阈值的取值可以与上述第一阈值的取值相同,也可以与上述第一阈值的取值不同。
需要说明是,在DCI中比特域的取值等于第二阈值时,终端设备确定的MCS表格可以和DCI中比特域的取值大于第二阈值时的MCS表格相同,或者DCI中比特域的取值小于第二阈值时的MCS表格相同。
通过本方式四所述的方法,根据该DCI加扰标识确定了业务的优先级之后,结合DCI中比特域的取值,确定不同的MCS表格。首先,使用这种规则,可以在网络设备102与终端设备101之间就MCS表格的确定方式达成一致,避免网络设备102与终端设备101各自确定的MCS表格不同而导致数据无法被接收。其次,相比于直接固定使用某一个MCS表格来说,能够根据DCI加扰标识和DCI中比特域的取值在多个MCS表格中切换,从而达到不同业务优先级的数据的不同的可靠性需求,从而提高资源的利用率。
如图3所示,该方法可包括以下步骤:
S201:网络设备102发送第一信息,该第一信息用于调度数据。具体的,第一信息可以是网络设备102向终端设备101发送的DCI,该DCI可用于调度网络设备102与终端设备101之间的上下行数据。
S202:终端设备101接收第一信息。
S203:终端设备101根据第一信息中比特域的取值确定该数据使用的MCS表格,该比特域的取值可用于指示所述数据所属业务的优先级。
S204:网络设备102与终端设备101之间进行数据传输,其中,该数据使用的MCS根据所述第一信息以及所述MCS表格确定。具体的,进行数据传输包括网络设备102向终端设备101发送下行数据,此时,由网络设备102发送数据,并由终端设备101接收该数据。或者,进行数据传输包括终端设备101向网络设备102发送上行数据,此时,由终端设备101发送数据,并由网络设备102接收该数据。
具体的,当DCI中比特域的取值小于或等于第一阈值时,可确定所述MCS表格为第一MCS表格。当DCI中比特域的取值大于所述第一阈值时,终端设备101确定所述MCS表格为第二MCS表格。这里第一阈值的设置方式可以参照前述方式四中的描述。
需要说明是,在DCI中比特域的取值等于第一阈值时,终端设备确定的MCS表格可 以和DCI中比特域的取值大于第一阈值时的MCS表格相同,或者DCI中比特域的取值小于第一阈值时的MCS表格相同。
示例性的,若DCI中比特域的取值为0、1、2或者3,则第一阈值可以为1。当网络设备102为终端设备101发送DCI,并且所述DCI中比特域的取值为0或1时,终端设备101可确定MCS表格为第一MCS表格。或者,当网络设备102为终端设备101发送DCI,并且所述DCI中比特域的取值为2或3时,终端设备101可确定MCS表格为第二MCS表格。
或者,当DCI中比特域的取值大于或等于第二阈值时,可确定所述MCS表格为第一MCS表格。当DCI中比特域的取值小于所述第二阈值时,终端设备101确定所述MCS表格为第二MCS表格。这里第二阈值的设置方式可以参照前述方式四中的描述,第一阈值可以与第二阈值相同或者不同。
需要说明是,在DCI中比特域的取值等于第二阈值时,终端设备确定的MCS表格可以和DCI中比特域的取值大于第二阈值时的MCS表格相同,或者DCI中比特域的取值小于第二阈值时的MCS表格相同。
应理解,以上实施例所涉及的第一MCS表格以及第二MCS表格为不同的MCS表格。
示例性的,对于调度下行数据或者调度未配置转换预编码的上行数据的DCI,本申请实施例中根据该DCI确定的第一MCS表格可如表一所示,和/或,根据该DCI确定的第二MCS表格可采用如表二所示配置。其中,可见第二MCS表格中包含的中低码率(或称目标码率)的行数比较多,而码率越低传输的可靠性越高,因此第二MCS表格可更多用于对传输可靠性要求比较高的场合。所述第二MCS表格可以为最高调制方式为64QAM的低频谱效率MCS表格,所述第二MCS表格的名称或标志记做'qam64LowSE'。所述第一MCS表格可以为最高调制方式为64QAM的高频谱效率MCS表格,所述第一MCS表格的名称或标志可以记做'qam64HighSE'。
表一
表二
另外,对于配置了转换预编码的上行数据的DCI,本申请实施例中根据该DCI确定的第一MCS表格可采用如表三所示配置,和/或,根据该DCI确定的第二MCS表格可采用如表四所示配置。所述第二MCS表格可以为最高调制方式为64QAM的低频谱效率MCS表格,所述第二MCS表格的名称或标志可记做'qam64LowSE'。所述第一MCS表格可以为最高调制方式为64QAM的高频谱效率MCS表格,所述第一MCS表格的名称或标志可记做'qam64HighSE'。
表三
表四
上述实施例中第一DCI格式可以为DCI格式1_1,第二DCI格式可以为DCI格式1_2。
通过上述的方法,根据该DCI中比特域的取值和第一阈值或第二阈值的关系,确定不同的MCS表格。首先,使用这种规则,可以在网络设备102与终端设备101之间就MCS表格的确定方式达成一致,避免网络设备102与终端设备101各自确定的MCS表格不同而导致数据无法被接收。其次,相比于直接固定使用某一个MCS表格来说,能够根据DCI中比特域的取值在多个MCS表格中切换,从而达到不同业务优先级的数据的不同的可靠性需求,从而提高资源的利用率。
在本申请实施中,根据第一信息的加扰标识以及目标信息确定MCS表格之后,还可根据MCS表格和第一信息确定具体使用的MCS。具体的,可根据第一信息中的MCS指示域,从MCS表格中确定MCS。
第一信息中的MCS指示域所能够指示的MCS的数量与MCS表格中的MCS数量一致, 如MCS指示域的比特数为M,第一信息中的MCS指示域所能够指示的MCS的数量为2
M,则MCS表格中的MCS数量为2
M,其中,M为正整数,因此根据MCS指示域能够从MCS表格中唯一确定一个MCS,该MCS即终端设备101与网络设备102传输数据所使用的MCS。举例来说,若确定的MCS表格如表一所示,并且DCI中MCS指示域的取值为0,则可将如表一所示的MCS索引为1的MCS作为使用的MCS,终端设备101以及网络设备102可根据该MCS进行数据的传输。
示例性的,还可减少第一信息中MCS指示域的长度,以降低DCI的比特数,在DCI占用相同时频资源的情况下,可以降低传输码率,达到提高DCI传输可靠性的目的,此时第一信息中的MCS指示域所能够指示的MCS的数量小于MCS表格中的MCS数量,例如,MCS指示域的比特数为N,第一信息中的MCS指示域所能够指示的MCS的数量为2
N,N小于log
2M,M为MCS表格中的MCS数量,即2
N小于M。采用本申请实施例提供的方法,在此情况下即使指示比特数不足以指示一个大的MCS表格时,仍可实现MCS的确定,从而令网络设备102以及终端设备101对于MCS的确定方式达成一致,保证数据的正常传输。
在一种可能的实现方式中,若MCS指示域的取值为m,m为非负整数,可将MCS表格中的第n+m+1个MCS作为传输数据使用的MCS,其中m和n为非负整数。
例如,若根据前述实施例确定的数据的MCS表格如表一所示,当n取0时,终端设备101可将表一中第m+1个MCS确定为传输数据所使用的MCS。此时,假设MCS中包含4bit,该4bit对应的为“00”时,则对应的MCS指示域的取值为m=0,则可以将表一中的第1个MCS确定为传输数据使用的MCS,该4bit对应的为“11”时,则对应的MCS指示域的取值为m=3,则可以将表一中的第4个MCS确定为传输数据使用的MCS。
应理解,以上n的取值可以由网络设备102通过配置信息向终端设备101进行指示,如,网络设备102向终端设备101发送第三信息,该第三信息用于指示n的取值。可选地,该第三指示信息可以为配置信息。或者,也可以由协议定义的方式确定n的取值。
其中n的取值指示从确定的MCS表格中哪个MCS开始指示。例如,确定的MCS表格为表一。终端设备通过上述方式确定n等于4,可以表示MCS表格中的第4行开始指示。此时,假设MCS中包含4bit,该4bit对应的为“0000”时,则对应的MCS指示域的取值为m=0,则可以将表一中的第n+m+1=4+0+1=5个MCS确定为传输数据使用的MCS,该4bit对应的为“1111”时,则对应的MCS指示域的取值为m=15,则可以将表一中的第n+m+1=4+15+1=20个MCS确定为传输数据使用的MCS。
或者,若MCS指示域的取值为m,可以将MCS表格中的第n*m+1个MCS作为传输数据使用的MCS。例如,若MCS表格如表一所示,当n取1时,终端设备101可将表一中第m+1个MCS确定为传输数据所使用的MCS。
例如,若根据前述实施例确定的数据的MCS表格如表一所示,当n取2时,终端设备101可将表一中第m+1个MCS确定为传输数据所使用的MCS。此时,假设MCS中包含2bit,该2bit对应的为“00”时,则对应的MCS指示域的取值为m=0,则可以将表一中的第1个MCS确定为传输数据使用的MCS,该2bit对应的为“01”时,则对应的MCS指示域的取值为m=1,则可以将表一中的第3个MCS确定为传输数据使用的MCS。可以看出n用于指示了相邻两个MCS指示域的取值指示的MCS的索引标识之间的间隔。例如,上述例子中,MCS指示域的取值为m=0和MCS指示域的取值为m=1是相邻的两个MCS 指示域取值,指示的MCS分别为第1个MCS和第3个MCS,间隔为2,也就是n。
应理解,以上n的取值可以由网络设备102通过配置信息向终端设备101进行指示,如,网络设备102向终端设备101发送第三信息,该第三信息用于指示n的取值。可选地,该第三指示信息可以为配置信息。或者,也可以由协议定义的方式确定n的取值。
在另一种可能的实现方式中,也可以根据MCS指示域的取值,从MCS表格的2
N个备选MCS中选择传输数据使用的MCS。例如,若MCS表格如表一所示,所述2
N个备选MCS包括MCS表格中MCS索引为0至15的MCS,当MCS指示域的取值为m,可将MCS表格的2
N个备选MCS中的第m+1个MCS作为传输数据使用的MCS。这里第m个备选MCS,是指全部备选MCS中的MCS索引从1开始标号后,标号为m的MCS。
具体来说,MCS表格的2
N个备选MCS可以是MCS的表格中索引连续的2
N个MCS。例如,将MCS表格中MCS索引最小/最大的2
N个MCS作为备选MCS。具体是哪一种,可以通过由网络设备102通过配置信息向终端设备101指示,或者可以由协议定义方式确定,不需要引入动态信令,从而降低开销。
或者,MCS表格的2
N个备选MCS可以是MCS表格中,最小MCS索引为p且相邻的任意两个备选MCS之间的MCS索引差的为q的2
N个MCS,p、q均为非负整数。例如,当p=1以及q=2时,表一中的备选MCS的MCS索引分别为:1、3、5、7、9、11、13、15、17、19、21、23、25、27、29以及31。
以上所涉及的p和q的值可由网络设备102通过配置信息向终端设备101指示,或者可以由协议定义方式确定。不需要引入动态信令,从而降低开销。
应理解,本申请可由网络设备102和/或终端设备101执行以上所述确定MCS的过程,包括但不限于由网络设备102和/或终端设备101根据第一信息以及目标信息确定MCS表格,以及,由网络设备102和/或终端设备101根据第一信息的MCS指示域以及MCS表格确定MCS。
通过本实施例的方法,在DCI中的MCS比特域的取值不足以指示一个相对大的MCS表格时,规定了根据MCS比特域确定数据的MCS的方法,保证基站和用户的一致理解;而且能够灵活的确定MCS表格中的某一个MCS为数据传输使用的MCS,保证业务传输的可靠性和提高资源的利用率。
基于与以上方法实施例相同的发明构思,本申请实施例还提供了一种通信装置,该通信装置可具备上述方法实施例中的由网络设备102和/或终端设备101具备的功能,并可用于执行由网络设备102和/或终端设备101执行的步骤。所述功能可以通过硬件实现,也可以通过软件或者硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一种可能的实现方式中,如图4所示的通信装置400可作为上述方法实施例所涉及的网络设备102,并执行上述方法实施例中由网络设备102执行的步骤,如,执行S101以及S104所示步骤中由网络设备102执行的动作,或者,执行S201以及S204所示步骤中由网络设备102执行的动作。如图4所示,该通信装置400可包括通信模块401以及数据传输模块402,以上通信模块401以及数据传输模块402之间相互耦合。所述通信模块401可用于支持通信装置400进行通信,数据传输模块402可用于支持所述通信装置收发数据。
在执行如图1所示方法时,该通信模块401可用于发送第一信息,第一信息用于调度数据,第一信息的具体设置方式可参照以上方法实施例部分的介绍。数据传输模块402可 用于接收或发送该数据,其中,第一信息的加扰标识以及目标信息用于确定所述数据使用的MCS表格,该数据所使用的MCS根据该第一信息以及该MCS表格确定。
示例性的,目标信息可包括第一信息的格式、第一信息所在的搜索空间、第二信息或者第一信息中比特域的取值中的部分或全部信息,其中,该比特域的取值可用于指示所述数据的优先级。
若目标信息包括第一信息的格式,且该第一信息的格式为第一DCI格式,所述MCS表格可以是第一MCS表格;和/或,若第一信息的格式为第二DCI格式,则所述MCS表格可以是第二MCS表格。
若目标信息包括所述第一信息所在的搜索空间的信息,在第一信息所在的搜索空间为用户特定的搜索空间时,所述MCS表格可以是第二MCS表格;和/或,在第一信息所在的搜索空间为公共搜索空间时,所述MCS表格可以是第一MCS表格。
若目标信息包括第一信息所在的搜索空间的信息,在搜索空间的索引大于或等于索引阈值时,所述数据使用的MCS表格可以是第二MCS表格;和/或,在所述搜索空间的索引小于索引阈值时,所述MCS表格可以是第一MCS表格。索引阈值的设置方式,可参照以上方法实施例中的介绍。
若目标信息包括该第二信息,在第二信息指示第二MCS表格时,所述MCS表格可以是所述第二MCS表格;和/或,在第二信息指示第一MCS表格时,所述MCS表格可以是所述第一MCS表格。第二信息的确定方式,可参照以上方法实施例中的介绍。另外,在未发送第二信息的情况下,可将一个默认的MCS表格作为该MCS表格,这个默认的MCS表格可以是第一MCS表格,也可以是第二MCS表格。
若目标信息包括该第一信息中比特域的取值,在该取值小于或等于第一阈值时,所述MCS表格可以是第一MCS表格;和/或,在该取值大于所述第一阈值时,所述MCS表格可以是第二MCS表格。第一阈值的设置方式,可参照以上方法实施例中的介绍。
若目标信息包括该第一信息中比特域的取值,在该取值大于或等于第二阈值时,所述MCS表格可以是第一MCS表格;和/或,在该取值小于所述第二阈值时,所述MCS表格可以是第二MCS表格。第二阈值的设置方式,可参照以上方法实施例中的介绍。
第一信息还可以包括MCS指示域,其中,所述MCS指示域包括N比特,N小于log
2M,M为所述MCS表格中MCS的数量,M为正整数,N为非负整数,所述MCS指示域可用于从所述MCS表格中确定所述数据使用的MCS。
其中,若MCS指示域的取值为m,可将MCS表格中的第n+m+1个MCS作为所述MCS,或者,可将MCS表格中的第n*m+1个MCS作为所述MCS。其中,m和n为非负整数。n的取值可以是预配置的,或者,通信模块401还可用于发送用于指示n的取值的第三信息。这里的第三信息可以是一个高层信令,如配置信息。
另外,MCS指示域还可用于从所述MCS表格的2
N个备选MCS中确定所述数据使用的MCS,N为正整数。其中,2
N个备选MCS为预配置的。或者,2
N个备选MCS是网络设备102通过配置信息指示的,此时,通信模块401还可用于向终端设备101发送第四信息,该第四信息用于指示备选MCS。其中,第四信息可以是承载在高层信令中的配置信息。
示例性的,所述2
N个备选MCS可以是MCS表格中索引连续的2
N个备选MCS。或者,所述2
N个备选MCS可以是MCS表格中索引不连续的MCS,且其中相邻的两个备选MCS之间的索引差相同,例如,相邻的两个备选MCS之间的索引差均为2。
以上第一MCS表格和第二MCS表格为不同的MCS表格。第一MCS表格和第二MCS表格的设置方式,可参照以上方法实施例中的介绍。
在执行如图2所示方法时,通信模块401可用于发送第一信息,该第一信息用于调度数据,第一信息中比特域的取值用于确定所述数据使用的MCS表格。第一信息中该比特域的具体设置方式,可参照上述方法实施例中的介绍。数据传输模块402可用于接收或发送数据,其中,该数据所使用的MCS根据该第一信息以及该MCS表格确定。
若所述第一信息中比特域的取值小于或等于第一阈值,则所述MCS表格可以是第一MCS表格;和/或,若所述第一信息中比特域的取值大于所述第一阈值,则所述MCS表格可以是第二MCS表格。第一阈值的设置方式,可参照以上方法实施例中的介绍。
若所述第一信息中比特域的取值大于或等于第二阈值,则所述MCS表格可以是第一MCS表格;和/或,若所述第一信息中比特域的取值小于所述第二阈值,则所述MCS表格可以是第二MCS表格。第二阈值的设置方式,可参照以上方法实施例中的介绍。
以上第一MCS表格和第二MCS表格为不同的MCS表格。第一MCS表格和第二MCS表格的设置方式,可参照以上方法实施例中的介绍。
另外,如图5所示,本申请实施例还提供一种通信装置500,该通信装置500可作为上述方法实施例所涉及的终端设备101,并执行上述方法实施例中由终端设备101执行的步骤,如,执行S102S103以及S104所示步骤中由终端设备101执行的动作,或者,执行S202、S203以及S204所示步骤中由终端设备101执行的动作。如图5所示,该通信装置500可包括通信模块501、处理模块502以及数据传输模块503,以上通信模块501、处理模块502以及数据传输模块503中任意二者之间相互耦合。
在执行如图1所示方法时,该通信模块501可用于接收第一信息,第一信息用于调度数据,该第一信息的具体设置方式可参照以上方法实施例部分的介绍。处理模块502可用于根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格。数据传输模块503,可用于接收或发送该数据,其中,该数据所使用的MCS根据该第一信息以及该MCS表格确定。
示例性的,目标信息可包括第一信息的格式、第一信息所在的搜索空间、第二信息或者第一信息中比特域的取值中的部分或全部信息,其中,该比特域的取值可用于指示所述数据的优先级。
若目标信息包括第一信息的格式,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块502可在所述第一信息的格式为第一DCI格式时,确定所述MCS表格为第一MCS表格;和/或,处理模块502可在第一信息的格式为第二DCI格式时,确定所述MCS表格为第二MCS表格。
若目标信息包括所述第一信息所在的搜索空间的信息,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块502可在第一信息所在的搜索空间为用户特定的搜索空间时,确定所述MCS表格为第二MCS表格;和/或,处理模块502可在第一信息所在的搜索空间为公共搜索空间时,确定所述MCS表格为第一MCS表格。
若目标信息包括第一信息所在的搜索空间的信息,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块502可在搜索空间的索引大于或等于索引阈值时,确定所述数据使用的MCS表格为第二MCS表格;和/或, 处理模块502可在所述搜索空间的索引小于索引阈值时,确定所述MCS表格为第一MCS表格。索引阈值的设置方式,可参照以上方法实施例中的介绍。
若目标信息包括该第二信息,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块502可在第二信息指示第二MCS表格时,确定所述MCS表格为所述第二MCS表格;和/或,处理模块502可在第二信息指示第一MCS表格时,确定所述MCS表格为所述第一MCS表格。第二信息的确定方式,可参照以上方法实施例中的介绍。另外,在确定未接收到第二信息的情况下,处理模块502可将一个默认的MCS表格确定为该MCS表格,这个默认的MCS表格可以是第一MCS表格,也可以是第二MCS表格。
若目标信息包括该第一信息中比特域的取值,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块502可在该取值小于或等于第一阈值时,确定所述MCS表格为第一MCS表格;和/或,处理模块502可在该取值大于所述第一阈值时,确定所述MCS表格为第二MCS表格。第一阈值的设置方式,可参照以上方法实施例中的介绍。
若目标信息包括该第一信息中比特域的取值,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理模块502可在该取值大于或等于第二阈值时,确定所述MCS表格为第一MCS表格;和/或,处理模块502可在该取值小于所述第二阈值时,确定所述MCS表格为第二MCS表格。第二阈值的设置方式,可参照以上方法实施例中的介绍。
处理模块502还可用于根据第一信息以及该MCS表格确定传输数据时使用的MCS。具体的,第一信息还可以包括MCS指示域,所述MCS指示域包括N比特,N小于log
2M,M为所述MCS表格中MCS的数量,M为正整数,N为非负整数,所述处理模块502可用于根据该MCS指示域,从所述MCS表格中确定所述数据使用的MCS,从而可根据MCS实现数据的接收和发送。
在确定MCS时,若MCS指示域的取值为m,处理模块502可将MCS表格中的第n+m+1个MCS作为所述MCS,或者,处理模块502可将MCS表格中的第n*m+1个MCS作为所述MCS。其中,m和n为非负整数。n的取值可以是预配置的,或者,通信模块501还可用于接收用于指示n的取值的第三信息。这里的第三信息可以是一个高层信令,如配置信息。
另外,在确定MCS时,处理模块502还可根据所述MCS指示域,从所述MCS表格的2
N个备选MCS中确定所述数据使用的MCS,N为正整数。其中,2
N个备选MCS为预配置的。或者,2
N个备选MCS是网络设备102通过配置信息指示的,此时,通信模块501还可用于接收网络设备102发送的第四信息,该第四信息用于指示备选MCS。其中,第四信息可以是承载在高层信令中的配置信息。
示例性的,所述2
N个备选MCS可以是MCS表格中索引连续的2
N个备选MCS。或者,所述2
N个备选MCS可以是MCS表格中索引不连续的MCS,且其中相邻的两个备选MCS之间的索引差相同,例如,相邻的两个备选MCS之间的索引差均为2。
以上第一MCS表格和第二MCS表格为不同的MCS表格。第一MCS表格和第二MCS表格的设置方式,可参照以上方法实施例中的介绍。
在执行如图2所示方法时,通信模块501可用于接收第一信息,该第一信息用于调度 数据。第一信息的具体设置方式,可参照上述方法实施例中的介绍。处理模块502可用于根据第一信息中比特域的取值,确定该数据使用的MCS表格;该比特域的取值用于指示所述数据所属业务的优先级。数据传输模块503可用于接收或发送该数据,其中该数据使用的MCS是分解该地以信息以及该MCS表格确定的。以上第一信息中比特域的设置方式,可参照上述方法实施例中的介绍。
在根据第一信息中比特域的取值,确定该数据使用的MCS表格时,处理模块502具体可用于在所述第一信息中比特域的取值小于或等于第一阈值时,确定所述MCS表格为第一MCS表格;和/或,处理模块502在所述第一信息中比特域的取值大于所述第一阈值时,确定所述MCS表格为第二MCS表格。第一阈值的设置方式,可参照以上方法实施例中的介绍。
在根据第一信息中比特域的取值,确定该数据使用的MCS表格时,处理模块502具体可用于在所述第一信息中比特域的取值大于或等于第二阈值时,确定所述MCS表格为第一MCS表格;和/或,处理模块502在所述第一信息中比特域的取值小于所述第二阈值时,确定所述MCS表格为第二MCS表格。第二阈值的设置方式,可参照以上方法实施例中的介绍。
以上第一MCS表格和第二MCS表格为不同的MCS表格。第一MCS表格和第二MCS表格的设置方式,可参照以上方法实施例中的介绍。
应理解,以上是实施例中对于通信装置400和通信装置500所包含模块的划分是示意性的,仅仅为一种逻辑功能划分,其实际实现时可以有另外的划分方式。另外,以上通信装置400及通信装置500中的各功能模块可以集成在一个模块中,也可以是单独的物理存在。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现,不应理解为以图4或图5所示结构为限。
在另一种实现方式中,本申请实施例提供的通信装置还可由硬件组件构成,这些硬件组件例如处理器、存储器或者收发器等。
示例性的,若该通信装置为网络设备102,其结构可如图6所示。为便于理解,图6中以基站为例说明通信装置的结构。该通信装置600可包括收发器601、存储器602以及处理器603。该收发器601可以用于通信装置进行通信,如用于发送或接收上述参考信号。该存储器602与所述处理器603耦合,其用于保存通信装置600实现各功能所必要的程序和数据。该处理器603被配置为支持通信装置600执行上述方法中相应的处理功能,如生成本申请方法实施例所涉及的信息,或执行确定MCS表格以及MCS的步骤,所述功能可通过调用存储器602存储的程序实现。
具体的,该收发器601可以是无线收发器,可用于支持通信装置600通过无线空口进行接收和发送信令和/或数据。收发器601也可被称为收发单元或通信单元,收发器601可包括射频单元以及一个或多个天线,其中,射频单元如远端射频单元(remote radio unit,RRU),具体可用于射频信号的传输以及射频信号与基带信号的转换,该一个或多个天线具体可用于进行射频信号的辐射和接收。可选的,收发器601还可以仅包括以上射频单元,则此时通信装置600可包括收发器601、存储器602、处理器603以及天线。
存储器602以及处理器603可集成于一体也可相互独立。如图6所示,可将存储器602以及处理器603集成于通信装置600的控制单元610。示例性的,控制单元610可包括LTE基站的基带单元(baseband unit,BBU),基带单元也可称为数字单元(digital unit,DU), 或者,该控制单元610可包括5G和未来无线接入技术下基站中的分布式单元(distribute unit,DU)和/或集中单元(centralized unit,CU)。上述控制单元610可由一个或多个单板构成,其中,多个单板可以共同支持单一接入制式的无线接入网(如LTE网),多个单板也可以分别支持不同接入制式的无线接入网(如LTE网,5G网或其他网)。所述存储器602和处理器603可以服务于一个或多个单板。也就是说,可以每个单板上单独设置存储器602和处理器603。也可以是多个单板共用相同的存储器602和处理器603。此外每个单板上还可以设置有必要的电路,如,该电路可用于实现存储器602以及处理器603的耦合。以上收发器601、处理器603以及存储器602之间可通过总线(bus)结构和/或其他连接介质实现连接。
基于图6所示结构,当通信装置600需要发送数据时,处理器603可对待发送的数据进行基带处理后,输出基带信号至射频单元,射频单元将基带信号进行射频处理后将射频信号通过天线以电磁波的形式进行发送。当有数据发送到通信装置600时,射频单元通过天线接收到射频信号,将射频信号转换为基带信号,并将基带信号输出至处理器603,处理器603将基带信号转换为数据并对该数据进行处理。
在执行如图1所示方法时,如图6所示收发器601可用于发送第一信息,第一信息用于调度数据,第一信息的具体设置方式可参照以上方法实施例部分的介绍。收发器601还可用于接收或发送该数据,其中,第一信息的加扰标识以及目标信息用于确定所述数据使用的MCS表格,该数据所使用的MCS根据该第一信息以及该MCS表格确定。示例性的,可由处理器603,以执行存储器602中的程序执行MCS表格和/或MCS的确定步骤。
示例性的,目标信息可包括第一信息的格式、第一信息所在的搜索空间、第二信息或者第一信息中比特域的取值中的部分或全部信息,其中,该比特域的取值可用于指示所述数据的优先级。
若目标信息包括第一信息的格式,且该第一信息的格式为第一DCI格式,所述MCS表格可以是第一MCS表格;和/或,若第一信息的格式为第二DCI格式,则所述MCS表格可以是第二MCS表格。
若目标信息包括所述第一信息所在的搜索空间的信息,在第一信息所在的搜索空间为用户特定的搜索空间时,所述MCS表格可以是第二MCS表格;和/或,在第一信息所在的搜索空间为公共搜索空间时,所述MCS表格可以是第一MCS表格。
若目标信息包括第一信息所在的搜索空间的信息,在搜索空间的索引大于或等于索引阈值时,所述数据使用的MCS表格可以是第二MCS表格;和/或,在所述搜索空间的索引小于索引阈值时,所述MCS表格可以是第一MCS表格。索引阈值的设置方式,可参照以上方法实施例中的介绍。
若目标信息包括该第二信息,在第二信息指示第二MCS表格时,所述MCS表格可以是所述第二MCS表格;和/或,在第二信息指示第一MCS表格时,所述MCS表格可以是所述第一MCS表格。第二信息的确定方式,可参照以上方法实施例中的介绍。另外,在未发送第二信息的情况下,可将一个默认的MCS表格作为该MCS表格,这个默认的MCS表格可以是第一MCS表格。
若目标信息包括该第一信息中比特域的取值,在该取值小于或等于第一阈值时,所述MCS表格可以是第一MCS表格;和/或,在该取值大于所述第一阈值时,所述MCS表格可以是第二MCS表格。第一阈值的设置方式,可参照以上方法实施例中的介绍。
若目标信息包括该第一信息中比特域的取值,在该取值大于或等于第二阈值时,所述MCS表格可以是第一MCS表格;和/或,在该取值小于所述第二阈值时,所述MCS表格可以是第二MCS表格。第二阈值的设置方式,可参照以上方法实施例中的介绍。
第一信息还可以包括MCS指示域,其中,所述MCS指示域包括N比特,N小于log
2M,M为所述MCS表格中MCS的数量,M为正整数,N为非负整数,所述MCS指示域可用于从所述MCS表格中确定所述数据使用的MCS。
其中,若MCS指示域的取值为m,可将MCS表格中的第n+m+1个MCS作为所述MCS,或者,可将MCS表格中的第n*m+1个MCS作为所述MCS。其中,m和n为非负整数。n的取值可以是预配置的,或者,收发器601还可用于发送用于指示n的取值的第三信息。这里的第三信息可以是一个高层信令,如配置信息。
另外,MCS指示域还可用于从所述MCS表格的2
N个备选MCS中确定所述数据使用的MCS,N为正整数。其中,2
N个备选MCS为预配置的。或者,2
N个备选MCS是网络设备102通过配置信息指示的,此时,收发器601还可用于向终端设备101发送第四信息,该第四信息用于指示备选MCS。其中,第四信息可以是承载在高层信令中的配置信息。
示例性的,所述2
N个备选MCS可以是MCS表格中索引连续的2
N个备选MCS。或者,所述2
N个备选MCS可以是MCS表格中索引不连续的MCS,且其中相邻的两个备选MCS之间的索引差相同,例如,相邻的两个备选MCS之间的索引差均为2。
以上第一MCS表格和第二MCS表格为不同的MCS表格。第一MCS表格和第二MCS表格的设置方式,可参照以上方法实施例中的介绍。
在执行如图2所示方法时,收发器601可用于发送第一信息,该第一信息用于调度数据,第一信息中比特域的取值用于确定所述数据使用的MCS表格。第一信息中该比特域的具体设置方式,可参照上述方法实施例中的介绍。收发器601可用于接收或发送数据,其中,该数据所使用的MCS根据该第一信息以及该MCS表格确定。示例性的,可由处理器603执行存储器602中的程序,以执行MCS表格和/或MCS的确定步骤。
若所述第一信息中比特域的取值小于或等于第一阈值,则所述MCS表格可以是第一MCS表格;和/或,若所述第一信息中比特域的取值大于所述第一阈值,则所述MCS表格可以是第二MCS表格。第一阈值的设置方式,可参照以上方法实施例中的介绍。
若所述第一信息中比特域的取值大于或等于第二阈值,则所述MCS表格可以是第一MCS表格;和/或,若所述第一信息中比特域的取值小于所述第二阈值,则所述MCS表格可以是第二MCS表格。第二阈值的设置方式,可参照以上方法实施例中的介绍。
以上第一MCS表格和第二MCS表格为不同的MCS表格。第一MCS表格和第二MCS表格的设置方式,可参照以上方法实施例中的介绍。
在另一种可能的实现方式中,该通信装置为终端设备101时,其结构还可如图7所示。便于理解和图示方便,图7中,终端设备以手机为例说明通信装置的结构。如图7所示,通信装置700可包括处理器701、存储器702以及收发器703。
以上处理器701可用于对通信协议以及通信数据进行处理,以及对终端设备进行控制,执行软件程序,处理软件程序的数据等。存储器702可用于存储程序和数据,处理器701可基于该程序执行本申请实施例中由终端设备101执行的方法。
收发器703可包括射频单元以及天线。其中,射频单元可用于基带信号与射频信号的转换以及对射频信号的处理。天线可用于收发电磁波形式的射频信号。另外,也可仅将射 频单元视为收发器703,则此时通信装置700可包括处理器701、存储器702、收发器703以及天线。
另外,该通信装置700还可包括输入输出装置704,如触摸屏、显示屏或者键盘等可用于接收用户输入的数据以及对用户输出数据的组件。需要说明的是,有些种类的通信装置可以不具有输入输出装置。
在执行如图1所示方法时,该收发器703可用于接收第一信息,第一信息用于调度数据,该第一信息的具体设置方式可参照以上方法实施例部分的介绍。处理器701可用于根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格。收发器703还可用于接收或发送该数据,其中,该数据所使用的MCS根据该第一信息以及该MCS表格确定。所述数据所使用的MCS也可由处理器701确定。
示例性的,目标信息可包括第一信息的格式、第一信息所在的搜索空间、第二信息或者第一信息中比特域的取值中的部分或全部信息,其中,该比特域的取值可用于指示所述数据的优先级。
若目标信息包括第一信息的格式,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理器701可在所述第一信息的格式为第一DCI格式时,确定所述MCS表格为第一MCS表格;和/或,处理器701可在第一信息的格式为第二DCI格式时,确定所述MCS表格为第二MCS表格。
若目标信息包括所述第一信息所在的搜索空间的信息,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理器701可在第一信息所在的搜索空间为用户特定的搜索空间时,确定所述MCS表格为第二MCS表格;和/或,处理器701可在第一信息所在的搜索空间为公共搜索空间时,确定所述MCS表格为第一MCS表格。
若目标信息包括第一信息所在的搜索空间的信息,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理器701可在搜索空间的索引大于或等于索引阈值时,确定所述数据使用的MCS表格为第二MCS表格;和/或,处理器701可在所述搜索空间的索引小于索引阈值时,确定所述MCS表格为第一MCS表格。索引阈值的设置方式,可参照以上方法实施例中的介绍。
若目标信息包括该第二信息,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理器701可在第二信息指示第二MCS表格时,确定所述MCS表格为所述第二MCS表格;和/或,处理器701可在第二信息指示第一MCS表格时,确定所述MCS表格为所述第一MCS表格。第二信息的确定方式,可参照以上方法实施例中的介绍。另外,在确定未接收到第二信息的情况下,处理器701可将一个默认的MCS表格确定为该MCS表格,这个默认的MCS表格可以是第一MCS表格。
若目标信息包括该第一信息中比特域的取值,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理器701可在该取值小于或等于第一阈值时,确定所述MCS表格为第一MCS表格;和/或,处理器701可在该取值大于所述第一阈值时,确定所述MCS表格为第二MCS表格。第一阈值的设置方式,可参照以上方法实施例中的介绍。
若目标信息包括该第一信息中比特域的取值,在根据该第一信息的加扰标识以及目标信息,确定该数据使用的调制和编码方案MCS表格时,处理器701可在该取值大于或等 于第二阈值时,确定所述MCS表格为第一MCS表格;和/或,处理器701可在该取值小于所述第二阈值时,确定所述MCS表格为第二MCS表格。第二阈值的设置方式,可参照以上方法实施例中的介绍。
处理器701还可用于根据第一信息以及该MCS表格确定传输数据时使用的MCS。具体的,第一信息还可以包括MCS指示域,所述MCS指示域包括N比特,N小于log
2M,M为所述MCS表格中MCS的数量,M为正整数,N为非负整数,所述处理器701可用于根据该MCS指示域,从所述MCS表格中确定所述数据使用的MCS,从而可根据MCS实现数据的接收和发送。
在确定MCS时,若MCS指示域的取值为m,处理器701可将MCS表格中的第n+m+1个MCS作为所述MCS,或者,处理器701可将MCS表格中的第n*m+1个MCS作为所述MCS。其中,m和n为非负整数。n的取值可以是预配置的,或者,收发器703还可用于接收用于指示n的取值的第三信息。这里的第三信息可以是一个高层信令,如配置信息。
另外,在确定MCS时,处理器701还可根据所述MCS指示域,从所述MCS表格的2
N个备选MCS中确定所述数据使用的MCS,N为正整数。其中,2
N个备选MCS为预配置的。或者,2
N个备选MCS是网络设备102通过配置信息指示的,此时,收发器703还可用于接收网络设备102发送的第四信息,该第四信息用于指示备选MCS。其中,第四信息可以是承载在高层信令中的配置信息。
示例性的,所述2
N个备选MCS可以是MCS表格中索引连续的2
N个备选MCS。或者,所述2
N个备选MCS可以是MCS表格中索引不连续的MCS,且其中相邻的两个备选MCS之间的索引差相同,例如,相邻的两个备选MCS之间的索引差均为2。
以上第一MCS表格和第二MCS表格为不同的MCS表格。第一MCS表格和第二MCS表格的设置方式,可参照以上方法实施例中的介绍。
在执行如图2所示方法时,收发器703可用于接收第一信息,该第一信息用于调度数据。第一信息的具体设置方式,可参照上述方法实施例中的介绍。处理器701可用于根据第一信息中比特域的取值,确定该数据使用的MCS表格;该比特域的取值用于指示所述数据所属业务的优先级。收发器703还可以用于接收或发送该数据,该数据使用的MCS是根据第一信息以及该MCS表格确定的。以上第一信息中比特域的设置方式,可参照上述方法实施例中的介绍。
在根据第一信息中比特域的取值,确定该数据使用的MCS表格时,处理器701具体可用于在所述第一信息中比特域的取值小于或等于第一阈值时,确定所述MCS表格为第一MCS表格;和/或,处理器701在所述第一信息中比特域的取值大于所述第一阈值时,确定所述MCS表格为第二MCS表格。第一阈值的设置方式,可参照以上方法实施例中的介绍。
在根据第一信息中比特域的取值,确定该数据使用的MCS表格时,处理器701具体可用于在所述第一信息中比特域的取值大于或等于第二阈值时,确定所述MCS表格为第一MCS表格;和/或,处理器701在所述第一信息中比特域的取值小于所述第二阈值时,确定所述MCS表格为第二MCS表格。第二阈值的设置方式,可参照以上方法实施例中的介绍。
以上第一MCS表格和第二MCS表格为不同的MCS表格。第一MCS表格和第二MCS表格的设置方式,可参照以上方法实施例中的介绍。
应理解,以上是实施例中对于通信装置600和通信装置700所包含组件是示意性的,仅仅为一种可能的示例,其实际实现时可以具有另外的构成方式。另外,以上通信装置600及通信装置700中的各组件可以集成在一个模块中,也可以是单独的物理存在。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块的形式实现,不应理解为以图6或图7所示结构为限。
应理解,如图4所示的通信模块401以及数据传输模块402可包括如图6所示的收发器601,该收发器可包括射频单元,或者,该收发器可包括射频单元以及天线。另外,如图4所示的通信装置400还可包括处理模块,该处理模块可用于指示如图6所示处理器603所能够执行的步骤。该处理模块可包括如图6所示处理器603,或者包括如图6所示的存储器602以及处理器603。
另外,如图5所示的处理模块501可包括如图7所示的处理器701,或者包括如图7所示的处理器701以及存储器702。如图5所示的通信模块501可包括如图7所示的收发器603,该收发器可包括射频单元,或者,该收发器可包括射频单元以及天线。
基于与上述方法实施例相同构思,本申请实施例中还提供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,使该计算机执行上述方法实施例、方法实施例的任意一种可能的实现方式中由网络设备和/或终端设备执行的操作。
基于与上述方法实施例相同构思,本申请还提供一种计算机程序产品,该计算机程序产品在被计算机调用执行时,可以使得计算机实现上述方法实施例、方法实施例的任意一种可能的实现方式中由第一终端设备和/或第二终端设备执行的操作。
基于与上述方法实施例相同构思,本申请还提供一种芯片或芯片系统,该芯片与收发器耦合,用于实现上述方法实施例、方法实施例的任意一种可能的实现方式中由第一终端设备和/或第二终端设备执行的操作。其中,“耦合”是指两个部件彼此直接或间接地结合,这种结合可以是固定的或可移动性的,这种结合可以允许流动液、电、电信号或其它类型信号在两个部件之间进行通信。该芯片系统可包括该芯片。
基于与上述方法实施例相同构思,本申请还提供一种通信系统,该通信系统可用于实现上述方法实施例、方法实施例的任意一种可能的实现方式中由第一终端设备和/或第二终端设备执行的操作。示例性的,该通信系统具有如图1和/或图2所示结构。
本申请实施例是参照实施例所涉及的方法、装置、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个 方框或多个方框中指定的功能的步骤。
Claims (28)
- 一种数据传输方法,其特征在于,包括:接收第一信息,所述第一信息用于调度数据,所述第一信息的加扰标识为调制和编码方案小区无线网络临时标识MCS-C-RNTI或高优先级小区无线网络临时标识Higher-priority-C-RNTI,所述Higher-priority-C-RNTI用于标识所述第一信息用于调度高优先级的数据;根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格;接收或发送所述数据,所述数据使用的MCS根据所述第一信息以及所述MCS表格确定。
- 如权利要求1所述的方法,其特征在于,所述目标信息包括以下信息中的至少一个:所述第一信息的格式;或者所述第一信息所在的搜索空间;或者第二信息,所述第二信息用于指示所述MCS表格;或者所述第一信息中比特域的取值,所述比特域的取值用于指示所述数据的优先级。
- 如权利要求1或2所述的方法,其特征在于,所述目标信息包括所述第一信息的格式,根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格,包括:当所述第一信息的格式为第一DCI格式,所述终端装置确定所述MCS表格为第一MCS表格;和/或当所述第一信息的格式为第二DCI格式,所述终端装置确定所述MCS表格为第二MCS表格;所述第一DCI格式和第二DCI格式不同,所述第一MCS表格和第二MCS表格不同。
- 如权利要求1或2所述的方法,其特征在于,所述目标信息包括所述第一信息所在的搜索空间的信息;根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格,包括:当所述第一信息所在的搜索空间为用户特定的搜索空间时,所述终端装置确定所述MCS表格为第二MCS表格;和/或当所述第一信息所在的搜索空间为公共搜索空间时,所述终端装置确定所述MCS表格为第一MCS表格;所述第一MCS表格和第二MCS表格不同。
- 如权利要求1或2所述的方法,其特征在于,所述目标信息包括所述第一信息所在的搜索空间的信息;根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格,包括:当所述搜索空间的索引大于或等于索引阈值时,所述终端装置确定所述数据使用的 MCS表格为第二MCS表;和/或当所述搜索空间的索引小于索引阈值时,所述终端装置确定所述MCS表格为第一MCS表格;所述第一MCS表格和第二MCS表格不同。
- 如权利要求1或2所述的方法,其特征在于,所述目标信息包括第二信息,所述第二信息用于指示所述MCS表格;根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格,包括:所述第二信息指示第二MCS表格时,所述终端装置确定所述MCS表格为所述第二MCS表格;和/或所述第二信息指示第一MCS表格时,所述终端装置确定所述MCS表格为所述第一MCS表格;所述第一MCS表格和第二MCS表格不同。
- 如权利要求1或2所述的方法,其特征在于,所述目标信息包括所述第一信息中比特域的取值;根据所述第一信息的加扰标识以及目标信息,确定所述数据使用的调制和编码方案MCS表格,包括:当所述第一信息中比特域的取值小于或等于第一阈值时,所述终端装置确定所述MCS表格为第一MCS表格;和/或当所述第一信息中比特域的取值大于所述第一阈值时,所述终端装置确定所述MCS表格为第二MCS表格;所述第一MCS表格和第二MCS表格不同。
- 如权利要求1-7中任一所述的方法,其特征在于,所述第一信息包括MCS指示域,所述MCS指示域包括N比特,N小于log 2M,M为所述MCS表格中MCS的数量,M为正整数,N为非负整数;所述方法还包括:根据所述MCS指示域,从所述MCS表格中确定所述数据使用的MCS。
- 如权利要求8所述的方法,其特征在于,所述根据所述MCS指示域,从所述MCS表格中确定所述数据使用的MCS,包括:所述MCS指示域的取值为m,所述终端装置确定所述数据使用的MCS为所述MCS表格中的第n+m+1个MCS;或者,所述MCS指示域的取值为m,所述终端装置确定所述数据使用的MCS为所述MCS表格中的第m*n+1个MCS;其中所述m和n为非负整数。
- 如权利要求9所述的方法,其特征在于,所述n为预配置的;或者所述方法还包括:接收第三信息,所述第三信息用于指示所述n的取值。
- 一种数据传输方法,其特征在于,包括:发送第一信息,所述第一信息用于调度数据,所述第一信息的加扰标识为调制和编码方案小区无线网络临时标识MCS-C-RNTI或高优先级小区无线网络临时标识 Higher-priority-C-RNTI,所述Higher-priority-C-RNTI用于标识所述第一信息用于调度高优先级的数据,所述第一信息的加扰标识以及目标信息用于确定所述数据使用的MCS表格,所述第一信息以及所述MCS表格用于确定所述数据使用的MCS;发送或接收所述数据。
- 如权利要求11所述的方法,其特征在于,所述目标信息包括以下信息中的至少一个:所述第一信息的格式;或者所述第一信息所在的搜索空间;或者第二信息,所述第二信息用于指示所述MCS表格;所述第一信息中比特域的取值,所述比特域的取值用于指示所述数据的优先级。
- 如权利要求11或12所述的方法,其特征在于,所述目标信息包括所述第一信息的格式,当所述第一信息的格式为第一DCI格式,所述MCS表格为表格1,所述表格1为第一MCS表格;和/或当所述第一信息的格式为第二DCI格式,所述MCS表格为表格2,所述表格2为第二MCS表格;所述第一DCI格式和第二DCI格式不同,所述第一MCS表格和第二MCS表格不同。
- 如权利要求11或12所述的方法,其特征在于,所述目标信息包括所述第一信息所在的搜索空间的信息;当所述第一信息所在的搜索空间为用户特定的搜索空间时,所述MCS表格为第二MCS表格;和/或当所述第一信息所在的搜索空间为公共搜索空间时,所述MCS表格为第二MCS表格;所述第一MCS表格和第二MCS表格不同。
- 如权利要求11或12所述的方法,其特征在于,所述目标信息包括所述第一信息所在的搜索空间的信息;当所述搜索空间的索引大于或等于索引阈值时,所述数据使用的MCS表格为第二MCS表格;和/或当所述搜索空间的索引小于索引阈值时,确定所述MCS表格为第一MCS表格;所述第一MCS表格和第二MCS表格不同。
- 如权利要求11或12所述的方法,其特征在于,所述目标信息包括第二信息,所述第二信息用于指示所述MCS表格;所述第二信息指示第二MCS表格时,所述MCS表格为所述第二MCS表格;和/或所述第二信息指示第一MCS表格时,所述MCS表格为所述第一MCS表格;所述第一MCS表格和第二MCS表格不同。
- 如权利要求11或12所述的方法,其特征在于,所述目标信息包括所述第一信息中比特域的取值;当所述第一信息中比特域的取值小于或等于第一阈值时,所述MCS表格为第一MCS表格;和/或当所述第一信息中比特域的取值大于所述第一阈值时,所述MCS表格为第二MCS表格;所述第一MCS表格和第二MCS表格不同。
- 如权利要求11-17中任一所述的方法,其特征在于,所述第一信息包括MCS指示域,所述MCS指示域包括N比特,N小于log 2M,M为所述MCS表格中MCS的数量,M为正整数,N为非负整数,所述MCS指示域用于从所述MCS表格中确定所述数据使用的MCS。
- 如权利要求18所述的方法,其特征在于,所述MCS指示域的取值为m,所述数据使用的MCS为所述MCS表格中的第n+m+1个MCS;或者,所述MCS指示域的取值为m,所述数据使用的MCS为所述MCS表格中的第m*n+1个MCS;其中所述m和n为非负整数。
- 如权利要求19所述的方法,其特征在于,所述n为预配置的;或者所述方法还包括:发送第三信息,所述第三信息用于指示所述n的取值。
- 一种通信装置,其特征在于,包括收发器、存储器以及处理器;所述收发器,用于支持所示通信装置进行通信;所述存储器,用于存储程序;所述处理器,用于调用所述存储器中的程序,执行如权利要求1-10中任一所述的方法。
- 一种通信装置,其特征在于,包括收发器、存储器以及处理器;所述收发器,用于支持所示通信装置进行通信;所述存储器,用于存储程序;所述处理器,用于调用所述存储器中的程序,执行如权利要求11-20中任一所述的方法。
- 一种通信装置,其特征在于,包括用于执行如权利要求1至10中任一项所述方法的模块。
- 一种通信装置,其特征在于,包括用于执行如权利要求11至20中任一项所述方法的模块。
- 一种通信系统,其特征在于,包括如权利要求21或23所示的通信装置,以及如权利要求22或24所示的通信装置。
- 一种计算机可读存储介质,其特征在于,包括计算机程序,当所述计算机程序被通信装置执行时,实现如权利要求1至20中任一项所述的方法。
- 一种包含指令的计算机程序产品,其特征在于,当所述计算机程序产品在通信装置上运行时,实现如权利要求1至20中任一项所述的方法。
- 一种芯片,其特征在于,包括处理器,所述处理器,用于从存储器中调用并运行计算机程序,以执行如权利要求1至20中任一所述的方法。
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015041579A1 (en) * | 2013-09-20 | 2015-03-26 | Telefonaktiebolaget L M Ericsson (Publ) | Network node, user equipment and methods for obtaining a modulation and coding scheme |
CN105027483A (zh) * | 2013-01-09 | 2015-11-04 | 高通股份有限公司 | 识别调制和编码方案及信道质量指示符 |
CN106031283A (zh) * | 2014-03-20 | 2016-10-12 | 夏普株式会社 | 终端装置以及基站装置 |
WO2017171956A1 (en) * | 2016-03-28 | 2017-10-05 | Intel IP Corporation | Uplink modulation coding scheme and configuration |
CN110034906A (zh) * | 2018-01-11 | 2019-07-19 | 株式会社Kt | 用于新无线电的数据调制与编码的方法和装置 |
CN110169175A (zh) * | 2017-12-15 | 2019-08-23 | 联发科技(新加坡)私人有限公司 | 移动通信中用以决定调制编码方案表的方法和装置 |
-
2019
- 2019-03-29 CN CN201910250454.7A patent/CN111756474B/zh active Active
-
2020
- 2020-03-26 WO PCT/CN2020/081509 patent/WO2020200053A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105027483A (zh) * | 2013-01-09 | 2015-11-04 | 高通股份有限公司 | 识别调制和编码方案及信道质量指示符 |
WO2015041579A1 (en) * | 2013-09-20 | 2015-03-26 | Telefonaktiebolaget L M Ericsson (Publ) | Network node, user equipment and methods for obtaining a modulation and coding scheme |
CN106031283A (zh) * | 2014-03-20 | 2016-10-12 | 夏普株式会社 | 终端装置以及基站装置 |
WO2017171956A1 (en) * | 2016-03-28 | 2017-10-05 | Intel IP Corporation | Uplink modulation coding scheme and configuration |
CN110169175A (zh) * | 2017-12-15 | 2019-08-23 | 联发科技(新加坡)私人有限公司 | 移动通信中用以决定调制编码方案表的方法和装置 |
CN110034906A (zh) * | 2018-01-11 | 2019-07-19 | 株式会社Kt | 用于新无线电的数据调制与编码的方法和装置 |
Non-Patent Citations (2)
Title |
---|
3GPP: "Physical Layer Procedures for Data", 3GPP TS 38.214 V15.5.0 RELEASE 15, 31 May 2019 (2019-05-31), DOI: 20200609190929PX * |
SHARP: "Priority Handling and Multiplexing among PUSCHs with Different Latency and Reliability Requirements", 3GPP TSG RAN WG1 MEETING #94, R1-1809113, GOTHENBURG, SWEDEN, 24 August 2018 (2018-08-24), XP051516482, DOI: 20200609190618Y * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115208511A (zh) * | 2022-05-27 | 2022-10-18 | 浪潮通信技术有限公司 | 调制与编码策略的配置方法、装置及电子设备 |
CN115208511B (zh) * | 2022-05-27 | 2024-04-26 | 浪潮通信技术有限公司 | 调制与编码策略的配置方法、装置及电子设备 |
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