WO2018045919A1 - Method and apparatus for transmitting uplink control information - Google Patents
Method and apparatus for transmitting uplink control information Download PDFInfo
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- WO2018045919A1 WO2018045919A1 PCT/CN2017/100228 CN2017100228W WO2018045919A1 WO 2018045919 A1 WO2018045919 A1 WO 2018045919A1 CN 2017100228 W CN2017100228 W CN 2017100228W WO 2018045919 A1 WO2018045919 A1 WO 2018045919A1
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- uplink control
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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
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
Definitions
- the present disclosure relates to the field of communications technologies, and in particular, to an uplink control information transmission method and apparatus.
- a mobile communication system refers to an operator providing communication services for user terminals (such as mobile terminals such as mobile phones) by deploying radio access network devices (such as base stations) and core network devices (such as Home Location Registers (HLRs)). system.
- radio access network devices such as base stations
- core network devices such as Home Location Registers (HLRs)
- the first generation of mobile communication refers to the original analog, voice-only cellular phone standard, mainly using analog technology and frequency division multiple access (FDMA) access method; second generation mobile communication introduced Digital technology, improved network capacity, improved voice quality and confidentiality, with "GSM, Global System for Mobile Communication” and "Code Division Multiple Access” (CDMA IS-95, Code Division Multiple Access) As the representative;
- the third generation of mobile communication is based on code division multiple access as the access technology, mainly CDMA2000, Wideband Code Division Multiple Access (WCDMA), Time Division Synchronous Code Division Multiple Access (Time) Division-Synchronous Code Division Multiple Access (TD-SCDMA) three technologies;
- the fourth generation mobile communication system is a long-term evolution access technology developed by the International Organization for Standardization (3rd Generation Partnership Project) (3GPP) Long Term Evolution/Long Term Evolution-Advanced, LTE/LTE-A), whose standards are relatively uniform internationally.
- the downlink is based on Orthogonal Frequency Division Multiple Access (OFDMA), and the uplink is based on Single Carrier-Frequency Division Multiple Access (SC-FDMA) access mode.
- OFDMA Orthogonal Frequency Division Multiple Access
- SC-FDMA Single Carrier-Frequency Division Multiple Access
- MuLTEfire is a new LTE-based network that can operate independently in unlicensed bands and does not need to have an "anchor point" in the licensed spectrum. It is down the LTE R13 Authorized Auxiliary Access (LAA).
- LAA Authorized Auxiliary Access
- the uplink multiplexing mode of the MuLTEfire adopts a Block-Interleaved Frequency Division Multiple Access (B-IFDMA) method different from the traditional LTE uplink SC-FDMA to meet the regional coverage of the bandwidth of the unlicensed band. requirements.
- An extended physical uplink control channel (ehance Physical Uplink Control Channel or ePUCCH) is introduced in the uplink physical channel.
- Uplink Control Information may be transmitted through an ePUCCH or a Physical Uplink Share Channel (PUSCH), where the uplink control information includes an ACK/NACK (Answer/Negative Response) ), CSI (Channel State Information), SR (Uplink Scheduling Request, Scheduling Request) and other information.
- the ePUCCH is scheduled based on the evolved Node B (eNB), and the specific scheduling mode is based on downlink control information (DCI, Downlink Control).
- the information is triggered, but the dedicated LTE does not allocate a dedicated bit for scheduling the transmission of the ePUCCH, and the newly added bit for indicating the ePUCCH transmission increases the DCI size, and is also assisted by the LTE R14 enhanced authorization.
- Access eLAA has different DCI sizes, which leads to increased complexity of blind detection.
- the present disclosure provides a method and an apparatus for transmitting uplink control information, which solves the problem that the uplink control information in the MF network cannot be indicated by the downlink control information in the related art.
- An embodiment of the present disclosure provides a method for transmitting uplink control information, including: acquiring downlink control information sent by an access point, where the downlink control information includes the same field as when the uplink transport channel is scheduled, and the field is taken. The value is different from all values of the field when scheduling the uplink transport channel; and determining, according to the downlink control information, that the uplink control information is transmitted by using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
- An embodiment of the present disclosure further provides an uplink control information transmission apparatus, including: an obtaining module, configured to acquire downlink control information sent by an access point; where the downlink control information includes a same field as when an uplink transport channel is scheduled. And the value of the field is different from the value of the field when the uplink transmission channel is scheduled; and the processing module is configured to determine, according to the downlink control information, that the uplink control information is an extended physical uplink control channel.
- the ePUCCH or the physical uplink shared channel PUSCH is transmitted.
- An embodiment of the present disclosure further provides an uplink control information transmission apparatus, including: a receiver, configured to acquire downlink control information sent by an access point, where the downlink control information includes a same field as when an uplink transmission channel is scheduled, and The value of the field is different from the value of the field when the uplink transmission channel is scheduled; and the processor is connected to the receiver, and is configured to determine, according to the downlink control information, that the uplink control information is extended physical uplink.
- the path control channel ePUCCH or the physical uplink shared channel PUSCH is transmitted.
- the uplink control information transmission method and apparatus of the present disclosure determines that the uplink control information is transmitted by using an ePUCCH or a PUSCH by using an idle state that is not defined in the downlink control information, without adding a new indication.
- the information under the premise of not changing the size of the DCI in the scheduling information, achieves the purpose of determining which uplink transmission channel is used for uplink control information transmission, saves network transmission resources, and can blindly check DCI by using a traditional blind detection method. The problem of increased complexity of blind detection due to changing DCI size is avoided.
- FIG. 1 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure
- FIG. 2 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure
- FIG. 3 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure
- FIG. 4 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure
- FIG. 5 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure
- FIG. 6 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure
- FIG. 7A is a block diagram showing a module of an uplink control information transmission apparatus according to an embodiment of the present disclosure.
- FIG. 7B-7G are block diagrams showing the detailed structure of the module of the uplink control information transmission apparatus shown in FIG. 7A;
- Fig. 8 is a block diagram showing the configuration of an uplink control information transmitting apparatus of an embodiment of the present disclosure.
- an extended physical uplink control channel or an extended physical uplink control channel (ePUCCH) in the MuLTEfire (MF network) is scheduled based on an evolved Node B (eNB).
- the specific scheduling mode is triggered based on Downlink Control Information (DCI).
- DCI Downlink Control Information
- the legacy LTE including the LTE R14 Enhanced Authorized Access Assistance (eLAA)
- eLAA Enhanced Authorized Access Assistance
- the blind detection method is not compatible, resulting in an increase in the complexity of blind detection.
- Embodiments of the present disclosure provide an uplink control information transmission method and apparatus.
- the uplink control information is determined to be transmitted by using an ePUCCH or a physical uplink shared channel (PUSCH) by using an idle state that is not defined in the downlink control information, without adding new indication information, without changing the scheduling information.
- PUSCH physical uplink shared channel
- an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following steps 11 to 14 .
- Step 11 Obtain downlink control information sent by the access point.
- the downlink control information includes the same field as when the uplink transmission channel is scheduled, and the value of the field is different from all values when the uplink transmission channel is scheduled.
- the DCI still uses the field length in the relevant standard. To achieve compatibility with the relevant standards, and the value of this field is different from the value of the field defined in the relevant standard.
- the uplink transmission channel may be an uplink transmission channel for transmitting an uplink data signal, such as a PUSCH, or an uplink transmission channel for transmitting an uplink control signal, such as ePUCCH or sPUCCH. It is worth noting that the PUSCH can transmit both uplink data signals and uplink control signals.
- Step 12 Determine, according to the downlink control information, that the uplink control information is transmitted by using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
- the value of the field in the DCI is different from that in the scheduling of the uplink transmission channel, that is, although the length of the DCI is unchanged, the undefined field value or the undefined idle information state in the DCI can be used. Determine the transmission channel of the uplink control information.
- Step 13 When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
- the uplink control information to be transmitted is transmitted in the scheduled ePUCCH.
- Step 14 When it is determined that the uplink control information is transmitted by using the PUSCH, the uplink control information to be transmitted is transmitted by using the scheduled PUSCH.
- the uplink control information to be transmitted is transmitted in the scheduled PUSCH.
- the idle control state that is not defined in the downlink control information is used to indicate that the uplink control information is transmitted by using the ePUCCH or the PUSCH, and the new control information is not required, and the uplink control information is determined without changing the size of the DCI in the scheduling information.
- the purpose of which uplink transmission channel is transmitted saves network transmission resources, and can blindly detect DCI by using a traditional blind detection method, thereby avoiding the problem of increased blind detection complexity caused by changing the DCI size.
- an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following steps 21 to 24.
- Step 21 Obtain downlink control information sent by the access point.
- Step 22 Determine, according to the resource allocation information in the downlink control information, that the uplink control information is transmitted by using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
- the downlink control information DCI includes resource allocation information and other control information on one or more user equipments, where the resource allocation information includes a modulation and coding scheme (MCS), resource allocation, and the like. . Further, this The value of the first field corresponding to the resource allocation information is different from the value of the first field when the resource is allocated, that is, the value of the first field corresponding to the resource allocation information is different from that defined in the relevant standard. The value of the first field. That is to say, when the number of PUSCH unavailable resource blocks (RBs) is indicated in the DCI, it may be redefined to indicate that the uplink control information is transmitted by using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH. The following will be described in detail below with reference to the following scenarios.
- MCS modulation and coding scheme
- Scenario 1 When the value of N bits in the M bits in the resource allocation information in the downlink control information is 1, it is determined that the uplink control information uses the extended physical uplink control channel ePUCCH or physical uplink.
- the channel shared channel PUSCH is transmitted; wherein M and N are both positive integers, and the value of N is different from the possible number of values of the resource allocation information when the resource is allocated.
- each interleaving unit is 10 physical resource blocks (PRBs) in the frequency domain.
- PRBs physical resource blocks
- the uplink grant information for example, the resource allocation in the DCI of the Format 0/4 series is indicated by a 10-bit bitmap, when 7 bits correspond to 1,
- the corresponding number of the RBs is the number of resources of the PUSCH that are not supported in the eLAA, and the DCI is not used to schedule the PUSCH of the uplink shared channel (UL-SCH), so it can be used to indicate the uplink control information.
- the physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH is extended for transmission.
- the combined state of 7 out of 10 bits is 120. Can be used to indicate uplink control information transmission.
- the 120 information states may be re-defined as indicating indication information transmitted only through the ePUCCH or through the PUSCH.
- the interlace number and the number of the allocation, and/or whether to carry the hybrid automatic repeat request response/non-response HARQ may be further utilized.
- - ACK/NACK and other information Specifically, when the value of the specific N bit bits in the M bit bits in the resource allocation information in the downlink control information is 1, it indicates whether the hybrid automatic retransmission request response/non-response HARQ is carried in the uplink control information.
- the first 1-10th form is defined.
- the state indication occupies 1 interlace and carries HARQ-ACK/NACK
- the 11th-20th state indication occupies 1 interlace and does not carry HARQ-ACK/NACK
- the 21st-65th state indication occupies 2 interlaces and carries HARQ-ACK /NACK
- the 66-110 state indication occupies 2 interlaces and does not carry HARQ-ACK/NACK.
- the 111-120 state is used as a reservation indication state or a custom indication state.
- the uplink control information is determined to be an extended physical uplink control channel.
- the ePUCCH or the physical uplink shared channel PUSCH is transmitted.
- the Format 0/4 series is still taken as an example.
- the number (51 types) and the status of the vacant information are 13. Eight of the 13 types can be used to specifically indicate discontinuous interlace allocation, and the remaining five can be used to indicate the transmission channel of the uplink control information.
- the remaining five indication states may be used to indicate a transport channel used by the uplink control information, and whether to carry a HARQ-ACK/NACK.
- information such as a modulation and coding scheme (MCS) and a HARQ process number (HQQ) carried in the DCI may be only defined in the PUSCH transmission field. Redefined as a parameter indicating other UCI transmissions.
- the interlace, the ePUCCH format, the Orthogonal Cover Code (OCC) number, the Demodulation Reference Signal (DMRS) number, and the like may be included.
- the current DCI is indicated as only ePUCCH transmission, specifically by reinterpreting the 4-bit of the HARQ of each transport block (TB), and/or by the 5-bit of the MCS of each TB.
- the interlace and ePUCCH formats and the like are respectively allocated or jointly indicated, for example, by one of which indicates that four interlaces are 4-bit, or 6-bit indicates interlace that is continuously allocated, and the like.
- the ePUCCH transmission information configured in the RRC is combined with the radio resource control, and is only used as the trigger information indicating the ePUCCH transmission.
- the state information of the resource allocation information that is not defined in the relevant standard is used to indicate that the uplink control information is transmitted by using the ePUCCH or the PUSCH.
- the compatibility of DCI and the addition of new indication information can save network transmission resources.
- Step 23 When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
- Step 24 When it is determined that the uplink control information is transmitted by using the PUSCH, the uplink control information to be transmitted is transmitted by using the scheduled PUSCH.
- the uplink control information is transmitted by using the ePUCCH or the PUSCH by using the state information of the resource allocation information that is not defined in the relevant standard, without adding new indication information, and implementing the DCI without changing the size of the scheduling information. Determining which uplink transmission channel is used for uplink control information transmission, saving network transmission resources, and blindly checking DCI by using traditional blind detection method, thereby avoiding the problem of increased blind detection complexity caused by changing DCI size .
- an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following steps 31 to 34.
- Step 31 Obtain downlink control information sent by the access point.
- Step 32 Determine, according to the joint value of the new data indication information and the redundancy version information in the downlink control information, that the uplink control information is transmitted by using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
- the downlink control information DCI includes resource allocation and other control information on one or more UEs, including a modulation and coding scheme (MCS), resource allocation information, and redundancy version information. (RV, Redundancy Version), new data indicator information (NDI, new date indicator) and other information.
- MCS modulation and coding scheme
- RV Redundancy Version
- NDI new data indicator information
- RV information are defined in the relevant standards, but there are some undefined NDI information and partial values of RV information combined.
- the UL-SCH defaults to the redundancy version 0 for transmission.
- the new data indication information in the downlink control information indicates the new transmission data, and the value of the redundancy version information is not 0, determining that the uplink control information is performed by using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH transmission.
- the new data indication information in the downlink control information indicates new transmission data, and the value of the redundancy version information is 0, it is determined that the uplink control information is not transmitted on the PUSCH.
- the DCI is not considered to be a PUSCH for scheduling the legacy UL-SCH, and therefore can be used as an indication of uplink control information by using an extended physical uplink.
- the link control channel ePUCCH or the physical uplink shared channel PUSCH is transmitted.
- the DCI is not considered to be a PUSCH for scheduling a legacy UL-SCH, and thus can be transmitted as an indication of uplink control information using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
- the DCI is not considered to be a PUSCH for scheduling a legacy UL-SCH, and therefore may be transmitted as an indication of uplink control information using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
- the joint state information of the NDI information and the RV information that are not defined in the relevant standard is used to indicate that the uplink control information is transmitted by using the ePUCCH or the PUSCH, without changing the field length of the DCI, improving the compatibility of the DCI, and adding no new indication.
- Information can save network transmission resources.
- Step 33 When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
- Step 34 When it is determined that the uplink control information is transmitted by using the PUSCH, the uplink control information to be transmitted is transmitted by using the scheduled PUSCH.
- the uplink control information is transmitted by using the ePUCCH or the PUSCH, without adding new indication information, without changing the size of the DCI in the scheduling information.
- the purpose of indicating the uplink transmission channel for transmitting the uplink control information is to save the network transmission resources, and the blind detection of the DCI can be performed by using the traditional blind detection method, thereby avoiding the increase of the blind detection complexity caused by changing the DCI size. ask question.
- an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following steps 41 to 44.
- Step 41 Obtain downlink control information sent by the access point.
- Step 42 When the downlink control information indicates that the sounding reference signal SRS is transmitted in the last symbol of the scheduled PUSCH, it is determined that the uplink control information is transmitted by using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH.
- the uplink control information is instructed to be transmitted using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH.
- Step 43 When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
- Step 44 When it is determined that the uplink control information is transmitted by using the PUSCH, the uplink control information to be transmitted is transmitted by using the scheduled PUSCH.
- the uplink control information is transmitted by using ePUCCH or PUSCH by using the joint state information of the PUSCH and the channel state information (CSI) request information, which are not defined in the relevant standard, without adding new indication information.
- CSI channel state information
- the purpose of indicating which uplink transmission channel is used for uplink control information transmission is achieved, the network transmission resource is saved, and the downlink control information (DCI, Downlink Control Information) performs blind detection, avoiding the problem of increased blindness complexity caused by changing the DCI size.
- an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following steps 51 to 54.
- Step 51 Obtain downlink control information sent by the access point.
- the downlink control information includes the same field as when the uplink transmission channel is scheduled, and the value of the field is different from all values when the uplink transmission channel is scheduled.
- the DCI still uses the field length in the relevant standard. To achieve compatibility with the relevant standards, and the value of this field is different from the value of the field defined in the relevant standard.
- Step 52 Determine, according to the downlink control information, that the uplink control information is extended physical uplink.
- the control channel ePUCCH or the physical uplink shared channel PUSCH is transmitted.
- the value of the field in the DCI is different from that in the scheduling of the uplink transmission channel, that is, although the length of the DCI is unchanged, the undefined field value or the undefined idle information state in the DCI can be used.
- Step 53 When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
- the uplink control information includes channel state indication information CSI and hybrid automatic repeat request acknowledgement/non-response HARQ-ACK/NACK.
- Step 54 When the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, determine CSI and/or HARQ in the uplink control information to be transmitted by the scheduled PUSCH according to the CSI request information and the value of the MCS. ACK/NACK.
- the MCS When the MCS is a special value (such as 29 or 30), it means that the corresponding TB is invalid. When all the TBs in the DCI are invalid, and the CSI Request indicates that the aperiodic CSI is reported, the uplink control information (UCI) is transmitted through the PUSCH, and the UCI includes at least the CSI. Whether to transmit HARQ-ACK/NACK may be indicated by other MCS special values, NDI, RV, etc., alone or in combination. The following is an example of a separate instruction:
- the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid
- the CSI request information indicates CSI reporting
- the value of the MCS is the first value
- the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid
- the CSI request information indicates CSI reporting
- the value of the MCS is the second value
- the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid
- the CSI request information indicates that there is no CSI report
- the value of the MCS is the second value
- an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following steps 61 to 64.
- Step 61 Obtain downlink control information sent by the access point.
- the downlink control information includes the same field as when the uplink transmission channel is scheduled, and the value of the field is different from all values when the uplink transmission channel is scheduled.
- the DCI still uses the field length in the relevant standard. To achieve compatibility with the relevant standards, and the value of this field is different from the value of the field defined in the relevant standard.
- Step 62 Determine, according to the downlink control information, that the uplink control information is transmitted by using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
- the value of the field in the DCI is different from that in the scheduling of the uplink transmission channel, that is, although the length of the DCI is unchanged, the undefined field value or the undefined idle information state in the DCI can be used.
- Step 63 When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
- the uplink control information includes channel state indication information CSI and hybrid automatic repeat request acknowledgement/non-response HARQ-ACK/NACK.
- Step 64 When the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, determine, according to the CSI request information, the new data indication information, and the redundancy version information, the CSI in the uplink control information to be transmitted by the scheduled PUSCH transmission. / or HARQ-ACK/NACK.
- the MCS When the MCS is a special value (such as 29 or 30), it means that the corresponding TB is invalid. When all the TBs in the DCI are invalid, and the CSI Request indicates that the aperiodic CSI is reported, it indicates that the UCI is transmitted through the PUSCH, and the UCI includes at least the CSI. Whether to transmit HARQ-ACK/NACK may be indicated by other MCS special values, NDI, RV, etc., alone or in combination. The following is an example of a joint instruction.
- the CSI request information indicates CSI reporting
- the new data indication information indicates new transmit data
- the CSI request information indicates CSI reporting
- the new data indication information indicates new transmit data
- the value of the redundancy version information is 1, determining the scheduled PUSCH. Transmitting CSI and HARQ-ACK/NACK in the uplink control information to be transmitted.
- CSI Request indicates CSI reporting
- at least one or two NDIs indicate new transmission
- the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid
- the CSI request information indicates that there is no CSI report
- the new data indication information indicates new transmit data
- the value of the redundancy version information is 1, the scheduled The PUSCH transmits only HARQ-ACK/NACK in the uplink control information.
- the CSI Request indicates no CSI reporting
- at least one or two NDIs indicate new transmissions
- the CSI Request indicates CSI reporting
- at least one or two NDIs indicate new transmission data
- the idle control state that is not defined in the downlink control information is used to indicate that the uplink control information is transmitted by using the ePUCCH or the PUSCH, and the new uplink indication information is not required, and the uplink control information is implemented without changing the size of the DCI in the scheduling information.
- the purpose of transmitting the uplink transmission channel is to save the network transmission resources, and the blind detection can be performed by the traditional blind detection method, thereby avoiding the problem of increasing the blind detection complexity caused by changing the DCI size.
- the status information indicating which channel the uplink control information UCI is transmitted is different from the status information indicating whether the different control information is transmitted in the uplink control information.
- the following embodiment will introduce a method for indicating which channel transmission of the UCI and whether each control information in the UCI is transmitted in combination with a specific application scenario.
- the uplink control information transmission method of the embodiment of the present disclosure specifically includes the following steps: acquiring downlink control information sent by an access point; and performing modulation and coding policy MCS, CSI request information, and new data indication information according to downlink control information. And the redundancy version information joint indication to determine that the uplink control information is transmitted by using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH; when determining that the uplink control information is transmitted by using the ePUCCH, using the scheduled ePUCCH transmission Uplink control information to be transmitted; when it is determined that the uplink control information is transmitted by using the PUSCH, the uplink control information to be transmitted is transmitted by using the scheduled PUSCH.
- the downlink control information includes the same field as when the uplink transmission channel is scheduled, and the value of the field is different from all values when the uplink transmission channel is scheduled.
- the DCI still uses the field length in the relevant standard. To achieve compatibility with the relevant standards, and the value of this field is different from the value of the field defined in the relevant standard.
- the combination of the modulation and coding policy MCS, the CSI request information, the new data indication information, and the redundancy version information in the downlink control information is different from the state information combination defined in the relevant standard, and can be indicated by referring to the following table:
- the NDI indicates a new transmission (or referred to as an initial transmission)
- the value of the RV is 0, and the CSI Request indicates that there is no CSI request (according to the 1-bit CSI Request, for example, 0 Indicates none, 1 means yes, CSI Request of multiple bits is the same, the same below); or, when MCS is between 0 and 28, NDI indicates retransmission, and the value of RV is any value from 0 to 3.
- the RVs of 0 to 3 may indicate that part of the DCI format may only support partial RVs, for example, only RV0 and RV2), and the CSI Request indicates that there is no request, indicating that only the UL-SCH is transmitted on the PUSCH.
- the NDI When the MCS value is between 0 and 28, the NDI indicates a new transmission, the RV value is 0, and the CSI Request indicates that there is a request; or, when the MCS value is between 0 and 28, the NDI indicates retransmission, and the value of the RV is Any value from 0 to 3, if the CSI Request indicates that there is a request, it indicates that the UL-SCH and the aperiodic CSI are simultaneously transmitted on the PUSCH.
- the NDI indication value is 1
- the RV value is 2 (assuming all The DCI format for scheduling uplinks supports RV0 and RV2.
- the CSI Request indicates that there is a request, indicating that the aperiodic CSI feedback is transmitted on the PUSCH.
- the NDI indicates a new transmission
- the value of the RV is 2. If the CSI Request indicates no request, the UL-SCH and the ACK/NACK are simultaneously transmitted on the PUSCH.
- the NDI indicates a new transmission
- the RV value is 2, CSI Request.
- the UL-SCH, the aperiodic CSI, and the ACK/NACK are simultaneously transmitted on the PUSCH.
- the ACK/NACK feedback is indicated to be transmitted on the PUSCH.
- the value of the MCS is 29
- the value of the NDI indication is 1, and the value of the RV is 0.
- the CSI Request indicates that there is a request, it indicates that the ACK/NACK and the aperiodic CSI are simultaneously transmitted on the PUSCH.
- CSI Request indicates that there is a request, it indicates that aperiodic CSI is transmitted on ePUCCH.
- the ACK/NACK and the aperiodic CSI are simultaneously transmitted on the ePUCCH.
- CSI Request indicates no request, it indicates that ACK/NACK is transmitted on ePUCCH.
- each scheduled subframe has at least one RV and NDI indication bit, and the UVI corresponding to the RV and the NDI used in the foregoing method may be used to determine that the UCI is specific. Which subframe is transmitted.
- the idle state of the MCS, CSI, NDI, and RV which are not defined in the downlink control information, is used to simultaneously indicate that the uplink control information UCI is transmitted by using the ePUCCH or the PUSCH, and whether different control information in the UCI is sent, without adding a new one.
- the indication information under the premise of not changing the size of the DCI in the scheduling information, achieves the purpose of indicating which uplink transmission channel is used for transmission of the uplink control information, saves network transmission resources, and can perform blind detection on the DCI by using a traditional blind detection method. This avoids the problem of increased blindness complexity caused by changing the DCI size.
- the uplink control information transmission apparatus 70 of the embodiment of the present disclosure specifically includes an acquisition module 71, a processing module 72, a first transmission module 73, and a second transmission module 74.
- the obtaining module 71 is configured to obtain downlink control information sent by the access point, where the downlink control information includes the same field as when the uplink transport channel is scheduled, and the value of the field is different from the value of the field when scheduling the uplink transport channel.
- the processing module 72 is configured to determine, according to the downlink control information, that the uplink control information uses an extended physical uplink control channel ePUCCH or a physical uplink shared channel. PUSCH is transmitted.
- the first transmission module 73 is configured to use the scheduled ePUCCH to transmit the uplink control information to be transmitted when determining that the uplink control information is transmitted by using the ePUCCH.
- the second transmission module 74 is configured to transmit the uplink control information to be transmitted by using the scheduled PUSCH when determining that the uplink control information is transmitted by using the PUSCH.
- the processing module 72 includes a first determining submodule 721, and the first determining submodule 721 is configured to determine, according to the resource allocation information in the downlink control information, that the uplink control information uses the extended physical uplink control channel ePUCCH or the physical uplink.
- the shared channel PUSCH is transmitted.
- the value of the first field corresponding to the resource allocation information is different from the value of the first field when the resource is allocated.
- the first determining sub-module 721 includes: a first determining unit 7211, where the first determining unit 7211 is configured to: when the value of the N bit bits in the M bit bits in the resource allocation information in the downlink control information is 1, It is determined that the uplink control information is transmitted using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH. Where M and N are both positive integers, and the value of N is different from the possible number of resource allocation information when the resource allocation is 1.
- the value of the specific N bit bits in the M bit bits in the resource allocation information in the downlink control information is 1, it indicates whether the hybrid automatic retransmission request response/non-response HARQ is carried in the uplink control information.
- the number and number of interleaved units in the ePUCCH or PUSCH occupied by the ACK/NACK, and/or the uplink control information are the number and number of interleaved units in the ePUCCH or PUSCH occupied by the ACK/NACK, and/or the uplink control information.
- the first determining sub-module 721 includes: a second determining unit 7212, where the second determining unit 7212 is configured to indicate, in the resource allocation information in the downlink control information, that the value of the bit bit scheduled by the interleaving unit is different from the resource allocation information.
- the uplink control information is transmitted by using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH.
- the processing module 72 includes: a second determining module 722, where the second determining module 722 is configured to determine, according to the joint value of the new data indication information and the redundancy version information in the downlink control information, that the uplink control information is extended by physical uplink.
- the path control channel ePUCCH or the physical uplink shared channel PUSCH is transmitted.
- the second determining sub-module 722 includes: a third determining unit 7221, configured to determine uplink control when the new data indication information in the downlink control information indicates new transmission data, and the value of the redundancy version information is not 0.
- the information is transmitted using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH.
- the new data indication information is indicated as the newly transmitted data.
- the processing module 72 includes: a third determining sub-module 723, configured to determine, when the downlink control information indicates that the sounding reference signal SRS is sent in the last symbol of the scheduled PUSCH, The physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH is transmitted.
- the uplink control information includes: channel state indication information CSI and hybrid automatic repeat request acknowledgement/non-response HARQ-ACK/NACK.
- the second transmission module 74 includes: a first transmission submodule 741, where the first transmission submodule 741 is configured to use the value of the CSI request information and the MCS according to the CSI request information and the MCS value when the modulation and coding policy MCS of the downlink control information indicates that the transmission block is invalid.
- the scheduled PUSCH transmits CSI and/or HARQ-ACK/NACK in the uplink control information to be transmitted; or the second transmission sub-module 742 is used to indicate the modulation and coding policy MCS of the downlink control information.
- the CSI and/or HARQ-ACK/NACK in the uplink control information to be transmitted is transmitted by using the scheduled PUSCH according to the CSI request information, the new data indication information, and the redundancy version information.
- the first transmission sub-module 741 includes: a first transmission unit 7411, where the modulation and coding policy MCS of the downlink control information indicates that the transmission block is invalid, the CSI request information indicates CSI reporting, and the value of the MCS is When the first value is used, only the CSI in the uplink control information to be transmitted is transmitted by using the scheduled PUSCH; or the second transmission unit 7412 is used to indicate the transmission block when the modulation and coding policy MCS of the downlink control information is used.
- the CSI and the HARQ-ACK/NACK in the uplink control information to be transmitted are transmitted by using the scheduled PUSCH; or, the third transmission unit 7413,
- the third transmission unit 7413 is configured to use the scheduled PUSCH to transmit only the uplink control information when the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, the CSI request information indicates that there is no CSI report, and the value of the MCS is the second value.
- HARQ-ACK/NACK is configured to use the scheduled PUSCH to transmit only the uplink control information when the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, the CSI request information indicates that there is no CSI report, and the value of the MCS is the second value.
- the second transmission sub-module 742 includes: a fourth transmission unit 7421, where the modulation and coding policy MCS of the downlink control information indicates that the transmission block is invalid, the CSI request information indicates CSI reporting, and the new data indication information indicates For new data, and the value of the redundancy version information is 0.
- the fifth transmitting unit 7422 is configured to: when the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, CSI
- the new data indication information indicates the new transmission data
- the value of the redundancy version information is 1, the CSI and the HARQ-ACK/NACK in the uplink control information to be transmitted are transmitted by using the scheduled PUSCH; or
- the sixth transmission unit 7423 is configured to: when the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, the CSI request information indicates that there is no CSI report, the new data indication information indicates that the data is newly transmitted, and the redundancy is performed.
- the value of the version information is 1, only the HARQ-ACK/NACK in the uplink control information is transmitted using the scheduled PUSCH.
- the present embodiment uses the undefined idle state in the downlink control information to indicate that the uplink control information is transmitted by using the ePUCCH or the PUSCH, and does not need to add new indication information, and implements the indication uplink control without changing the size of the DCI in the scheduling information.
- the purpose of transmitting the uplink transmission channel is to save the network transmission resources, and the blind detection can be performed by the traditional blind detection method, thereby avoiding the problem of increased blind detection complexity caused by changing the DCI size.
- the device embodiment of the present disclosure is a device corresponding to the foregoing method embodiment. All the implementation methods in the foregoing method embodiments are applicable to the device embodiment, and the same technical effects can be achieved.
- the embodiment provides a corresponding user terminal.
- the user terminal specifically includes a receiver 81, a processor 82, and a transmitter 83.
- the receiver 81 is configured to obtain downlink control information sent by the access point, where the downlink control information includes the same field as when the uplink transport channel is scheduled; and the value of the field is different from the value of the field when scheduling the uplink transport channel.
- the processor 82 is connected to the receiver 81 and is configured to implement a function of determining that the uplink control information is transmitted using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH according to the downlink control information.
- the transmitter 83 is connected to the processor 82 and configured to transmit the uplink control information to be transmitted by using the scheduled ePUCCH when determining that the uplink control information is transmitted by using the ePUCCH; or, when determining that the uplink control information is transmitted by using the PUSCH,
- the scheduled PUSCH transmits uplink control information to be transmitted.
- the processor 82 can also be configured and implement the functions implemented by all the modules in the foregoing device embodiments, and can achieve the same technical effects as those of the foregoing device embodiments.
- the objects of the present disclosure can also be achieved by running a program or a set of programs on any computing device.
- the computing device can be a well-known general purpose device.
- the objects of the present disclosure may also be realized by merely providing a program product including program code for implementing the method or apparatus. That is to say, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure.
- the storage medium may be any known storage medium or any storage medium developed in the future.
- various components or steps may be decomposed and/or recombined.
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Abstract
Description
相关申请的交叉引用Cross-reference to related applications
本申请主张在2016年9月6日在中国提交的中国专利申请号No.201610806617.1的优先权,其全部内容通过引用包含于此。The present application claims priority to Chinese Patent Application No. 20161080661, filed on Sep. 6, 2016, the entire content of which is hereby incorporated by reference.
本公开涉及通信技术领域,尤其涉及一种上行控制信息传输方法和装置。The present disclosure relates to the field of communications technologies, and in particular, to an uplink control information transmission method and apparatus.
移动通信系统是指运营商通过部署无线接入网设备(如基站)和核心网设备(如归属位置寄存器(Home Location Register,HLR))等,为用户终端(如手机等移动终端)提供通信服务的系统。A mobile communication system refers to an operator providing communication services for user terminals (such as mobile terminals such as mobile phones) by deploying radio access network devices (such as base stations) and core network devices (such as Home Location Registers (HLRs)). system.
移动通信经历了第一代、第二代、第三代、第四代。第一代移动通信是指最初的模拟、仅限语音通话的蜂窝电话标准,主要采用的是模拟技术和频分多址(FDMA,Frequency Division Multiple Access)的接入方法;第二代移动通信引入了数字技术,提高了网络容量、改善了话音质量和保密性,以“全球移动通信系统”(GSM,Global System for Mobile Communication)和“码分多址”(CDMA IS-95,Code Division Multiple Access)为代表;第三代移动通信均是以码分多址作为接入技术的,主要有CDMA2000、宽带码分多址(Wideband Code Division Multiple Access(WCDMA))、时分同步码分多址(Time Division-Synchronous Code Division Multiple Access(TD-SCDMA))三种技术;第四代移动通信系统是国际标准化组织一第三代合作伙伴计划(3rd Generation Partnership Project,3GPP)制定的长期演进接入技术(Long Term Evolution/Long Term Evolution-Advanced,LTE/LTE-A),其标准在国际上相对统一,其下行基于正交频分多址接入(Orthogonal Frequency Division Multiple Access,OFDMA),上行基于单载波频分多址接入(Single Carrier-Frequency Division Multiple Access,SC-FDMA)的接入方式,依据其灵活的带宽和自适应的调制编码方式,达到了下行峰值速率1Gbps,上行峰值速率500Mbps的 高速传输。Mobile communication has experienced the first generation, the second generation, the third generation, and the fourth generation. The first generation of mobile communication refers to the original analog, voice-only cellular phone standard, mainly using analog technology and frequency division multiple access (FDMA) access method; second generation mobile communication introduced Digital technology, improved network capacity, improved voice quality and confidentiality, with "GSM, Global System for Mobile Communication" and "Code Division Multiple Access" (CDMA IS-95, Code Division Multiple Access) As the representative; the third generation of mobile communication is based on code division multiple access as the access technology, mainly CDMA2000, Wideband Code Division Multiple Access (WCDMA), Time Division Synchronous Code Division Multiple Access (Time) Division-Synchronous Code Division Multiple Access (TD-SCDMA) three technologies; the fourth generation mobile communication system is a long-term evolution access technology developed by the International Organization for Standardization (3rd Generation Partnership Project) (3GPP) Long Term Evolution/Long Term Evolution-Advanced, LTE/LTE-A), whose standards are relatively uniform internationally. The downlink is based on Orthogonal Frequency Division Multiple Access (OFDMA), and the uplink is based on Single Carrier-Frequency Division Multiple Access (SC-FDMA) access mode. Flexible bandwidth and adaptive modulation and coding, reaching a downlink peak rate of 1Gbps and an uplink peak rate of 500Mbps High speed transmission.
MuLTEfire(MF网络)是一种新的基于LTE的网络,它能独立运行于非授权频段,并且不需要在授权频谱中有一个“锚点”.是在LTE R13授权辅助接入(LAA)下行传输方法的基础上新定义的上行控制信息传输装置方法,即stand-alone LTE-U。MuLTEfire的上行复用方式采用与传统LTE上行SC-FDMA不同的块交织的频分复用(Block-Interleaved Frequency Division Multiple Access,B-IFDMA)方式,用于满足非授权频段的带宽占用的地区性规范要求。并在其上行物理信道中引入了扩展的物理上行链路控制信道(enhance Physical Uplink Control Channel或extended Physical Uplink Control Channel,ePUCCH)。在MF网络中,上行控制信息(Uplink Control Information,UCI)可通过ePUCCH或物理上行链路共享信道(Physical Uplink Share Channel,PUSCH)进行传输,其中,上行控制信息包括ACK/NACK(应答/拒绝应答)、CSI(信道状态信息,Channel State Information)、SR(上行调度请求,Scheduling Request)等信息。与相关的LTE中物理上行链路控制信道(PUCCH,Physical Uplink Control Channel)不同,ePUCCH是基于演进的节点B(evolved Node B,eNB)调度的,具体调度方式基于下行控制信息(DCI,Downlink Control Information)触发,但是相关LTE的DCI中并没有分配专门的比特用于调度ePUCCH的传输,而新增加用于指示ePUCCH传输的比特会增加DCI的大小,同时也会因与LTE R14增强型授权辅助接入(eLAA)的DCI大小不同,而造成导致盲检复杂度增加。MuLTEfire (MF Network) is a new LTE-based network that can operate independently in unlicensed bands and does not need to have an "anchor point" in the licensed spectrum. It is down the LTE R13 Authorized Auxiliary Access (LAA). The newly defined uplink control information transmission device method based on the transmission method, namely stand-alone LTE-U. The uplink multiplexing mode of the MuLTEfire adopts a Block-Interleaved Frequency Division Multiple Access (B-IFDMA) method different from the traditional LTE uplink SC-FDMA to meet the regional coverage of the bandwidth of the unlicensed band. requirements. An extended physical uplink control channel (ehance Physical Uplink Control Channel or ePUCCH) is introduced in the uplink physical channel. In the MF network, Uplink Control Information (UCI) may be transmitted through an ePUCCH or a Physical Uplink Share Channel (PUSCH), where the uplink control information includes an ACK/NACK (Answer/Negative Response) ), CSI (Channel State Information), SR (Uplink Scheduling Request, Scheduling Request) and other information. Different from the physical uplink control channel (PUCCH) in the LTE, the ePUCCH is scheduled based on the evolved Node B (eNB), and the specific scheduling mode is based on downlink control information (DCI, Downlink Control). The information is triggered, but the dedicated LTE does not allocate a dedicated bit for scheduling the transmission of the ePUCCH, and the newly added bit for indicating the ePUCCH transmission increases the DCI size, and is also assisted by the LTE R14 enhanced authorization. Access (eLAA) has different DCI sizes, which leads to increased complexity of blind detection.
发明内容Summary of the invention
本公开提供一种上行控制信息传输方法和装置,解决了相关技术中无法通过下行控制信息指示MF网络中的上行控制信息传输的问题。The present disclosure provides a method and an apparatus for transmitting uplink control information, which solves the problem that the uplink control information in the MF network cannot be indicated by the downlink control information in the related art.
本公开的实施例提供一种上行控制信息传输方法,包括:获取接入点发送的下行控制信息;其中,所述下行控制信息包括与调度上行传输信道时相同的字段,且所述字段的取值不同于所述字段在调度上行传输信道时的所有取值;以及根据所述下行控制信息,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。 An embodiment of the present disclosure provides a method for transmitting uplink control information, including: acquiring downlink control information sent by an access point, where the downlink control information includes the same field as when the uplink transport channel is scheduled, and the field is taken. The value is different from all values of the field when scheduling the uplink transport channel; and determining, according to the downlink control information, that the uplink control information is transmitted by using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
本公开的实施例还提供了一种上行控制信息传输装置,包括:获取模块,用于获取接入点发送的下行控制信息;其中,所述下行控制信息包括与调度上行传输信道时相同的字段,且所述字段的取值不同与所述字段在调度上行传输信道时的所有取值;以及,处理模块,用于根据所述下行控制信息,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。An embodiment of the present disclosure further provides an uplink control information transmission apparatus, including: an obtaining module, configured to acquire downlink control information sent by an access point; where the downlink control information includes a same field as when an uplink transport channel is scheduled. And the value of the field is different from the value of the field when the uplink transmission channel is scheduled; and the processing module is configured to determine, according to the downlink control information, that the uplink control information is an extended physical uplink control channel. The ePUCCH or the physical uplink shared channel PUSCH is transmitted.
本公开的实施例还提供了一种上行控制信息传输装置,包括:接收机,用于获取接入点发送的下行控制信息,其中所述下行控制信息包括与调度上行传输信道时相同的字段且所述字段的值不同于所述字段在调度上行传输信道时的取值;以及处理器,与所述接收机连接,用于实现根据所述下行控制信息,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。An embodiment of the present disclosure further provides an uplink control information transmission apparatus, including: a receiver, configured to acquire downlink control information sent by an access point, where the downlink control information includes a same field as when an uplink transmission channel is scheduled, and The value of the field is different from the value of the field when the uplink transmission channel is scheduled; and the processor is connected to the receiver, and is configured to determine, according to the downlink control information, that the uplink control information is extended physical uplink. The path control channel ePUCCH or the physical uplink shared channel PUSCH is transmitted.
本公开的上述技术方案的有益效果是:本公开的上行控制信息传输方法和装置,通过利用下行控制信息中未定义的空闲状态来确定上行控制信息采用ePUCCH或PUSCH进行传输,无需增加新的指示信息,在不改变调度信息中的DCI的大小前提下,实现确定上行控制信息采用何种上行传输信道进行传输的目的,节省了网络传输资源,且能够采用传统盲检方式对DCI进行盲检,避免了因改变DCI大小而造成的盲检复杂度增加的问题。The foregoing technical solution of the present disclosure has the beneficial effects that the uplink control information transmission method and apparatus of the present disclosure determines that the uplink control information is transmitted by using an ePUCCH or a PUSCH by using an idle state that is not defined in the downlink control information, without adding a new indication. The information, under the premise of not changing the size of the DCI in the scheduling information, achieves the purpose of determining which uplink transmission channel is used for uplink control information transmission, saves network transmission resources, and can blindly check DCI by using a traditional blind detection method. The problem of increased complexity of blind detection due to changing DCI size is avoided.
图1表示本公开的实施例的上行控制信息传输方法的流程示意图;FIG. 1 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure;
图2表示本公开的实施例的上行控制信息传输方法的流程示意图;2 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure;
图3表示本公开的实施例的上行控制信息传输方法的流程示意图;FIG. 3 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure;
图4表示本公开的实施例的上行控制信息传输方法的流程示意图;FIG. 4 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure;
图5表示本公开的实施例的上行控制信息传输方法的流程示意图;FIG. 5 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure;
图6表示本公开的实施例的上行控制信息传输方法的流程示意图;6 is a schematic flowchart diagram of an uplink control information transmission method according to an embodiment of the present disclosure;
图7A表示本公开的实施例的上行控制信息传输装置的模块框图;FIG. 7A is a block diagram showing a module of an uplink control information transmission apparatus according to an embodiment of the present disclosure; FIG.
图7B-图7G表示图7A所示的上行控制信息传输装置的模块的详细结构框图;以及 7B-7G are block diagrams showing the detailed structure of the module of the uplink control information transmission apparatus shown in FIG. 7A;
图8表示本公开的实施例的上行控制信息传输装置的结构框图。Fig. 8 is a block diagram showing the configuration of an uplink control information transmitting apparatus of an embodiment of the present disclosure.
为使本公开要解决的技术问题、技术方案和优点更加清楚,下面将结合附图及具体实施例进行详细描述。The technical problems, the technical solutions, and the advantages of the present invention will be more clearly described in conjunction with the accompanying drawings and specific embodiments.
在相关技术中,MuLTEfire(MF网络)中的扩展物理上行链路控制信道(enhance Physical Uplink Control Channel或extended Physical Uplink Control Channel,ePUCCH)是基于演进的节点B(evolved Node B,eNB)调度的,具体调度方式基于下行控制信息(DCI,Downlink Control Information)触发。但是传统LTE(包含LTE R14增强型授权辅助接入(eLAA))的DCI中并没有分配专门的比特用于调度ePUCCH的传输,而新增加用于指示ePUCCH传输的比特会增加DCI的大小,同时也会因与LTE R14eLAA的DCI大小不同,盲检方式不兼容,从而造成导致盲检复杂度增加。In the related art, an extended physical uplink control channel or an extended physical uplink control channel (ePUCCH) in the MuLTEfire (MF network) is scheduled based on an evolved Node B (eNB). The specific scheduling mode is triggered based on Downlink Control Information (DCI). However, the legacy LTE (including the LTE R14 Enhanced Authorized Access Assistance (eLAA)) does not allocate dedicated bits for scheduling the transmission of the ePUCCH, and newly adding bits for indicating the ePUCCH transmission increases the DCI size. Due to the different DCI size of the LTE R14eLAA, the blind detection method is not compatible, resulting in an increase in the complexity of blind detection.
本公开的实施例提供了一种上行控制信息传输方法和装置。通过利用下行控制信息中未定义的空闲状态来确定上行控制信息采用ePUCCH或物理上行链路共享信道(Physical Uplink Share Channel,PUSCH)进行传输,无需增加新的指示信息,在不改变调度信息中的DCI大小前提下,实现确定上行控制信息采用何种信道进行传输的目的,节省了网络传输资源,且能够采用传统盲检方式对DCI进行盲检,避免了因改变DCI大小而造成的盲检复杂度增加的问题。Embodiments of the present disclosure provide an uplink control information transmission method and apparatus. The uplink control information is determined to be transmitted by using an ePUCCH or a physical uplink shared channel (PUSCH) by using an idle state that is not defined in the downlink control information, without adding new indication information, without changing the scheduling information. Under the premise of DCI size, the purpose of determining which channel is used for uplink control information transmission is achieved, which saves network transmission resources, and can perform blind detection on DCI by using traditional blind detection mode, thereby avoiding complicated blind detection caused by changing DCI size. The problem of increasing degrees.
如图1所示,本公开的实施例提供了一种上行控制信息传输方法,具体包括以下步骤11至步骤14。As shown in FIG. 1 , an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the
步骤11:获取接入点发送的下行控制信息。Step 11: Obtain downlink control information sent by the access point.
其中,下行控制信息(DCI)包括与调度上行传输信道时相同的字段,且该字段的取值不同于在调度上行传输信道时的所有取值,这里是说DCI仍采用相关标准中的字段长度以实现与相关标准的兼容,且该字段的取值不同于相关标准中已定义的该字段的取值。The downlink control information (DCI) includes the same field as when the uplink transmission channel is scheduled, and the value of the field is different from all values when the uplink transmission channel is scheduled. Here, the DCI still uses the field length in the relevant standard. To achieve compatibility with the relevant standards, and the value of this field is different from the value of the field defined in the relevant standard.
其中,该上行传输信道可以是传输上行数据信号的上行传输信道,如PUSCH,亦可以是传输上行控制信号的上行传输信道,如ePUCCH或者 sPUCCH。值得指出的是PUSCH既可以传输上行数据信号亦可以传输上行控制信号。The uplink transmission channel may be an uplink transmission channel for transmitting an uplink data signal, such as a PUSCH, or an uplink transmission channel for transmitting an uplink control signal, such as ePUCCH or sPUCCH. It is worth noting that the PUSCH can transmit both uplink data signals and uplink control signals.
步骤12:根据下行控制信息,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。Step 12: Determine, according to the downlink control information, that the uplink control information is transmitted by using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
其中,由于DCI中字段的取值不同于在调度上行传输信道时的所有取值,也就是说虽然DCI的长度不变,但DCI中未定义的字段取值或未定义的空闲信息状态可用来确定上行控制信息的传输信道。The value of the field in the DCI is different from that in the scheduling of the uplink transmission channel, that is, although the length of the DCI is unchanged, the undefined field value or the undefined idle information state in the DCI can be used. Determine the transmission channel of the uplink control information.
步骤13:当确定上行控制信息采用ePUCCH进行传输时,利用被调度的ePUCCH传输待传输的上行控制信息。Step 13: When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
当根据下行控制信息确定上行控制信息通过ePUCCH进行传输时,则在被调度的ePUCCH中传输待传输的上行控制信息。When it is determined that the uplink control information is transmitted through the ePUCCH according to the downlink control information, the uplink control information to be transmitted is transmitted in the scheduled ePUCCH.
步骤14:当确定上行控制信息采用PUSCH进行传输时,利用被调度的PUSCH传输待传输的上行控制信息。Step 14: When it is determined that the uplink control information is transmitted by using the PUSCH, the uplink control information to be transmitted is transmitted by using the scheduled PUSCH.
当根据下行控制信息确定上行控制信息通过PUSCH进行传输时,则在被调度的PUSCH中传输待传输的上行控制信息。When it is determined that the uplink control information is transmitted through the PUSCH according to the downlink control information, the uplink control information to be transmitted is transmitted in the scheduled PUSCH.
这样,利用下行控制信息中未定义的空闲状态来指示上行控制信息采用ePUCCH或PUSCH进行传输,无需增加新的指示信息,在不改变调度信息中的DCI的大小前提下,实现确定上行控制信息采用何种上行传输信道进行传输的目的,节省了网络传输资源,且能够采用传统盲检方式对DCI进行盲检,避免了因改变DCI大小而造成的盲检复杂度增加的问题。In this way, the idle control state that is not defined in the downlink control information is used to indicate that the uplink control information is transmitted by using the ePUCCH or the PUSCH, and the new control information is not required, and the uplink control information is determined without changing the size of the DCI in the scheduling information. The purpose of which uplink transmission channel is transmitted saves network transmission resources, and can blindly detect DCI by using a traditional blind detection method, thereby avoiding the problem of increased blind detection complexity caused by changing the DCI size.
如图2所示,本公开的实施例提供了一种上行控制信息传输方法,具体包括以下步骤21至步骤24。As shown in FIG. 2, an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following
步骤21:获取接入点发送的下行控制信息。Step 21: Obtain downlink control information sent by the access point.
步骤22:根据下行控制信息中的资源分配信息,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。Step 22: Determine, according to the resource allocation information in the downlink control information, that the uplink control information is transmitted by using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
其中,下行控制信息DCI包含一个或多个用户设备UE上的资源分配信息和其他的控制信息,资源分配信息包括调制与编码策略(MCS,Modulation and Coding Scheme)、资源分配(Resource allocation)等信息。进一步地,这 里的资源分配信息所对应的第一字段的取值不同于第一字段在资源分配时的取值,也就是说资源分配信息所对应的第一字段的取值不同于相关标准中已定义的第一字段的取值。也就是说当DCI中指示了PUSCH不可用资源块(Resource Block,RB)数目时,可以重新定义为指示上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。下面将参照以下场景对其做详细介绍。The downlink control information DCI includes resource allocation information and other control information on one or more user equipments, where the resource allocation information includes a modulation and coding scheme (MCS), resource allocation, and the like. . Further, this The value of the first field corresponding to the resource allocation information is different from the value of the first field when the resource is allocated, that is, the value of the first field corresponding to the resource allocation information is different from that defined in the relevant standard. The value of the first field. That is to say, when the number of PUSCH unavailable resource blocks (RBs) is indicated in the DCI, it may be redefined to indicate that the uplink control information is transmitted by using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH. The following will be described in detail below with reference to the following scenarios.
场景一:当下行控制信息中的资源分配信息中的M个比特(bit)位中有N个bit位的值为1时,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输;其中,M和N均为正整数,并且N的取值不同于所述资源分配信息在资源分配时取值为1的可能数目。Scenario 1: When the value of N bits in the M bits in the resource allocation information in the downlink control information is 1, it is determined that the uplink control information uses the extended physical uplink control channel ePUCCH or physical uplink. The channel shared channel PUSCH is transmitted; wherein M and N are both positive integers, and the value of N is different from the possible number of values of the resource allocation information when the resource is allocated.
假设20MHz的系统带宽下有10个交织单元(即交错(interlace)),每个交织单元的大小为10个频域上等间隔的物理资源块(PRB,Physical Resource Block)。当上行授权信息(UL grant),例如Format 0/4系列的DCI中的资源分配(Resource allocation)通过10-bit的位图(bitmap)方式进行指示时,当出现7个bit对应为1时,此时对应70个RB是eLAA中不支持的PUSCH的资源数目,则认为该DCI不是用于调度传统上行共享信道(uplink shared channel,UL-SCH)的PUSCH,因此可以用于指示上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。其中,10个比特中出现7个1的组合状态为120种可以用于指示上行控制信息传输。其中,具体地可以重新将这120种信息状态定义为指示仅通过ePUCCH传输或通过PUSCH传输的指示信息。It is assumed that there are 10 interleaving units (interlaces) under the system bandwidth of 20 MHz, and the size of each interleaving unit is 10 physical resource blocks (PRBs) in the frequency domain. When the uplink grant information (UL grant), for example, the resource allocation in the DCI of the Format 0/4 series is indicated by a 10-bit bitmap, when 7 bits correspond to 1, In this case, the corresponding number of the RBs is the number of resources of the PUSCH that are not supported in the eLAA, and the DCI is not used to schedule the PUSCH of the uplink shared channel (UL-SCH), so it can be used to indicate the uplink control information. The physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH is extended for transmission. Among them, the combined state of 7 out of 10 bits is 120. Can be used to indicate uplink control information transmission. Specifically, the 120 information states may be re-defined as indicating indication information transmitted only through the ePUCCH or through the PUSCH.
由于M个bit位中有N个bit位的值为1的状态信息有多种,因此可进一步利用其指示分配的interlace编号及数量、和/或是否携带混合自动重传请求应答/非应答HARQ-ACK/NACK等信息。具体地,当下行控制信息中的资源分配信息中的M个bit位中的特定N个bit位的值为1时,指示上行控制信息中是否携带有混合自动重传请求应答/非应答HARQ-ACK/NACK、和/或所述上行控制信息所占用的ePUCCH或PUSCH中的交织单元的个数和编号。例如在上述10个比特中出现7个1的120种组合状态中,定义第1-10种状 态指示占用1个interlace且携带HARQ-ACK/NACK,第11-20种状态指示占用1个interlace且不携带HARQ-ACK/NACK,第21-65种状态指示占用2个interlace且携带HARQ-ACK/NACK,第66-110种状态指示占用2个interlace且不携带HARQ-ACK/NACK.,第111-120种状态作为预留指示状态或自定义指示状态。Since there are multiple status information of the N bit positions of the M bit bits, the interlace number and the number of the allocation, and/or whether to carry the hybrid automatic repeat request response/non-response HARQ may be further utilized. - ACK/NACK and other information. Specifically, when the value of the specific N bit bits in the M bit bits in the resource allocation information in the downlink control information is 1, it indicates whether the hybrid automatic retransmission request response/non-response HARQ is carried in the uplink control information. ACK/NACK, and/or the number and number of interleaved units in the ePUCCH or PUSCH occupied by the uplink control information. For example, among the 120 combined states in which 7 out of the above 10 bits are present, the first 1-10th form is defined. The state indication occupies 1 interlace and carries HARQ-ACK/NACK, the 11th-20th state indication occupies 1 interlace and does not carry HARQ-ACK/NACK, and the 21st-65th state indication occupies 2 interlaces and carries HARQ-ACK /NACK, the 66-110 state indication occupies 2 interlaces and does not carry HARQ-ACK/NACK. The 111-120 state is used as a reservation indication state or a custom indication state.
场景二:当下行控制信息中的资源分配信息中用于指示交织单元调度的bit位的值不同于资源分配信息在资源分配时的取值时,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。Scenario 2: When the value of the bit allocation used in the resource allocation information in the downlink control information is different from the value of the resource allocation information when the resource allocation information is allocated, the uplink control information is determined to be an extended physical uplink control channel. The ePUCCH or the physical uplink shared channel PUSCH is transmitted.
依然以Format 0/4系列为例,当UL grant的DCI中的Resource allocation通过6-bit的连续分配方式进行指示时,具有2^6=64种指示状态,除去分配7个interlace的有效信息状态数目(51种),空余信息状态为13种。而13种中的8种可以用于特定指示非连续的interlace分配,剩余的5种可以用于指示上行控制信息的传输信道。The Format 0/4 series is still taken as an example. When the Resource allocation in the DCI of the UL grant is indicated by the 6-bit continuous allocation mode, there are 2^6=64 indication states, and the effective information state of the 7 interlaces is removed. The number (51 types) and the status of the vacant information are 13. Eight of the 13 types can be used to specifically indicate discontinuous interlace allocation, and the remaining five can be used to indicate the transmission channel of the uplink control information.
具体地,利用剩余的5种指示状态可指示上行控制信息所采用的传输信道,以及是否携带HARQ-ACK/NACK。进一步地,当指示状态指示仅ePUCCH传输时,DCI中携带的调制与编码策略(Modulation and Coding Scheme,MCS)、HARQ进程号(HARQ Process Number)等信息,仅在PUSCH传输有定义的字段可以被重新定义为指示其他UCI传输的参数。具体可以包括:占用的interlace、ePUCCH format、正交覆盖码(Orthogonal Cover Code,OCC)编号、解调参考信号(Demodulation Reference Signal,DMRS)编号等。具体地,在当前DCI指示为仅ePUCCH传输时,具体可以通过重新解释每个传输块(Transmission Block,TB)的HARQ的4-bit,和/或通过每个TB的MCS的5-比特,来分别或者联合指示分配的interlace和ePUCCH格式等,例如通过其中4-bit指示10个interlace的一个,或者6-bit指示连续分配的interlace等。又或者结合无线资源控制RRC中配置的ePUCCH传输信息,仅做为指示ePUCCH传输的触发信息。Specifically, the remaining five indication states may be used to indicate a transport channel used by the uplink control information, and whether to carry a HARQ-ACK/NACK. Further, when the indication status indicates that only the ePUCCH transmission is performed, information such as a modulation and coding scheme (MCS) and a HARQ process number (HQQ) carried in the DCI may be only defined in the PUSCH transmission field. Redefined as a parameter indicating other UCI transmissions. Specifically, the interlace, the ePUCCH format, the Orthogonal Cover Code (OCC) number, the Demodulation Reference Signal (DMRS) number, and the like may be included. Specifically, when the current DCI is indicated as only ePUCCH transmission, specifically by reinterpreting the 4-bit of the HARQ of each transport block (TB), and/or by the 5-bit of the MCS of each TB. The interlace and ePUCCH formats and the like are respectively allocated or jointly indicated, for example, by one of which indicates that four interlaces are 4-bit, or 6-bit indicates interlace that is continuously allocated, and the like. Alternatively, the ePUCCH transmission information configured in the RRC is combined with the radio resource control, and is only used as the trigger information indicating the ePUCCH transmission.
这样,无需改变DCI的字段长度,利用相关标准中未定义的资源分配信息的状态信息来指示上行控制信息采用ePUCCH或PUSCH进行传输,提高 了DCI的兼容性,且不增加新的指示信息可节省网络传输资源。In this way, it is not necessary to change the field length of the DCI, and the state information of the resource allocation information that is not defined in the relevant standard is used to indicate that the uplink control information is transmitted by using the ePUCCH or the PUSCH. The compatibility of DCI and the addition of new indication information can save network transmission resources.
步骤23:当确定上行控制信息采用ePUCCH进行传输时,利用被调度的ePUCCH传输待传输的上行控制信息。Step 23: When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
步骤24:当确定上行控制信息采用PUSCH进行传输时,利用被调度的PUSCH传输待传输的上行控制信息。Step 24: When it is determined that the uplink control information is transmitted by using the PUSCH, the uplink control information to be transmitted is transmitted by using the scheduled PUSCH.
综上,通过利用相关标准中未定义的资源分配信息的状态信息来确定上行控制信息采用ePUCCH或PUSCH进行传输,无需增加新的指示信息,在不改变调度信息中的DCI的大小前提下,实现确定上行控制信息采用何种上行传输信道进行传输的目的,节省了网络传输资源,且能够采用传统盲检方式对DCI进行盲检,避免了因改变DCI大小而造成的盲检复杂度增加的问题。In summary, the uplink control information is transmitted by using the ePUCCH or the PUSCH by using the state information of the resource allocation information that is not defined in the relevant standard, without adding new indication information, and implementing the DCI without changing the size of the scheduling information. Determining which uplink transmission channel is used for uplink control information transmission, saving network transmission resources, and blindly checking DCI by using traditional blind detection method, thereby avoiding the problem of increased blind detection complexity caused by changing DCI size .
如图3所示,本公开的实施例提供了一种上行控制信息传输方法,具体包括以下步骤31至步骤34。As shown in FIG. 3, an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following
步骤31:获取接入点发送的下行控制信息。Step 31: Obtain downlink control information sent by the access point.
步骤32:根据下行控制信息中的新数据指示信息和冗余版本信息的联合取值,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。Step 32: Determine, according to the joint value of the new data indication information and the redundancy version information in the downlink control information, that the uplink control information is transmitted by using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
其中,下行控制信息DCI中包含一个或多个UE上的资源分配和其他的控制信息,具体包括调制与编码策略(MCS,Modulation and Coding Scheme)、资源分配信息(Resource allocation)、冗余版本信息(RV,Redundancy Version)、新数据指示信息(NDI,new date indicator)等信息。相关标准中NDI信息和RV信息均有定义,但存在未定义的NDI信息和RV信息联合后的部分取值。The downlink control information DCI includes resource allocation and other control information on one or more UEs, including a modulation and coding scheme (MCS), resource allocation information, and redundancy version information. (RV, Redundancy Version), new data indicator information (NDI, new date indicator) and other information. NDI information and RV information are defined in the relevant standards, but there are some undefined NDI information and partial values of RV information combined.
具体地,假设当下行控制信息中的新数据指示信息指示为新传数据、UL-SCH默认选择冗余版本0进行传输。当下行控制信息中的新数据指示信息指示为新传数据、且冗余版本信息的值不为0时,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。当下行控制信息中的新数据指示信息指示为新传数据、且冗余版本信息的值为0时,确定该上行控制信息不在PUSCH进行传输。Specifically, it is assumed that when the new data indication information in the downlink control information indicates that the new data is transmitted, the UL-SCH defaults to the redundancy version 0 for transmission. When the new data indication information in the downlink control information indicates the new transmission data, and the value of the redundancy version information is not 0, determining that the uplink control information is performed by using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH transmission. When the new data indication information in the downlink control information indicates new transmission data, and the value of the redundancy version information is 0, it is determined that the uplink control information is not transmitted on the PUSCH.
例如,当UL grant的DCI format 0系列(0/0A/0B/0C...)中的重传进程(HARQ Process)对应的New Date Indicator与之前不同(从0变为1,或1 变为0)表示新数据传输,且Redundancy Version指示不为0(1/2/3)时,认为该DCI不是用于调度传统UL-SCH的PUSCH,因此可以作为指示上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。For example, when the retransmission process (HARQ Process) in the DCI format 0 series (0/0A/0B/0C...) of the UL grant is different from the previous one (from 0 to 1, or 1) When 0) indicates a new data transmission, and the Redundancy Version indication is not 0 (1/2/3), the DCI is not considered to be a PUSCH for scheduling the legacy UL-SCH, and therefore can be used as an indication of uplink control information by using an extended physical uplink. The link control channel ePUCCH or the physical uplink shared channel PUSCH is transmitted.
或者,当UL grant的DCI format 4系列中的HARQ Process对应的其中一个TB对应的New Date Indicator与之前不同(从0变为1,或1变为0),且对应的Redundancy Version指示不为0(1/2/3)时,认为该DCI不是用于调度传统UL-SCH的PUSCH因此可以作为指示上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。Or, when the New Date Indicator corresponding to one of the TBs corresponding to the HARQ process in the DCI format 4 series of the UL grant is different from the previous one (from 0 to 1, or 1 to 0), and the corresponding Redundancy Version indication is not 0. (1/2/3), the DCI is not considered to be a PUSCH for scheduling a legacy UL-SCH, and thus can be transmitted as an indication of uplink control information using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
又或者,当UL grant的DCI format 4系列中的HARQ Process对应的其中两个TB对应的New Date Indicator与之前不同(从0变为1,或1变为0),且Redundancy Version指示不为0(1/2/3)时,认为该DCI不是用于调度传统UL-SCH的PUSCH,因此可以作为指示上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。Or, when the HARQ process in the DCI format of the UL grant is different, the New Date Indicator corresponding to the two TBs is different from the previous one (from 0 to 1, or 1 to 0), and the Redundancy Version indication is not 0. (1/2/3), the DCI is not considered to be a PUSCH for scheduling a legacy UL-SCH, and therefore may be transmitted as an indication of uplink control information using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
其中,当下行控制信息中的新数据指示信息所对应的传输块中、至少一个传输块中传输的新数据指示的值发生变化时,表示该新数据指示信息指示为新传数据。When the value indicated by the new data transmitted in the at least one transport block in the transport block corresponding to the new data indication information in the downlink control information changes, it indicates that the new data indication information is indicated as new transmission data.
这样,利用相关标准中未定义的NDI信息和RV信息的联合状态信息来指示上行控制信息采用ePUCCH或PUSCH进行传输,无需改变DCI的字段长度,提高了DCI的兼容性,且不增加新的指示信息可节省网络传输资源。In this way, the joint state information of the NDI information and the RV information that are not defined in the relevant standard is used to indicate that the uplink control information is transmitted by using the ePUCCH or the PUSCH, without changing the field length of the DCI, improving the compatibility of the DCI, and adding no new indication. Information can save network transmission resources.
步骤33:当确定上行控制信息采用ePUCCH进行传输时,利用被调度的ePUCCH传输待传输的上行控制信息。Step 33: When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
步骤34:当确定上行控制信息采用PUSCH进行传输时,利用被调度的PUSCH传输待传输的上行控制信息。Step 34: When it is determined that the uplink control information is transmitted by using the PUSCH, the uplink control information to be transmitted is transmitted by using the scheduled PUSCH.
综上,通过利用相关标准中未定义的NDI信息和RV信息状态信息来指示上行控制信息采用ePUCCH或PUSCH进行传输,无需增加新的指示信息,在不改变调度信息中的DCI的大小前提下,实现指示上行控制信息采用何种上行传输信道进行传输的目的,节省了网络传输资源,且能够采用传统盲检方式对DCI进行盲检,避免了因改变DCI大小而造成的盲检复杂度增加的问 题。In summary, by using the NDI information and the RV information status information that are not defined in the relevant standard, the uplink control information is transmitted by using the ePUCCH or the PUSCH, without adding new indication information, without changing the size of the DCI in the scheduling information. The purpose of indicating the uplink transmission channel for transmitting the uplink control information is to save the network transmission resources, and the blind detection of the DCI can be performed by using the traditional blind detection method, thereby avoiding the increase of the blind detection complexity caused by changing the DCI size. ask question.
如图4所示,本公开的实施例提供了一种上行控制信息传输方法,具体包括以下步骤41至步骤44。As shown in FIG. 4, an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following
步骤41:获取接入点发送的下行控制信息。Step 41: Obtain downlink control information sent by the access point.
步骤42:当下行控制信息指示在所调度的PUSCH的最后一个符号中发送探测参考信号SRS时,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。Step 42: When the downlink control information indicates that the sounding reference signal SRS is transmitted in the last symbol of the scheduled PUSCH, it is determined that the uplink control information is transmitted by using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH.
即,当PUSCH的结束符号(ending symbol)指示最后一个符号结束,且SRS request指示发送SRS时,指示上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。That is, when the ending symbol of the PUSCH indicates that the last symbol ends, and the SRS request indicates that the SRS is transmitted, the uplink control information is instructed to be transmitted using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH.
步骤43:当确定上行控制信息采用ePUCCH进行传输时,利用被调度的ePUCCH传输待传输的上行控制信息。Step 43: When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
步骤44:当确定上行控制信息采用PUSCH进行传输时,利用被调度的PUSCH传输待传输的上行控制信息。Step 44: When it is determined that the uplink control information is transmitted by using the PUSCH, the uplink control information to be transmitted is transmitted by using the scheduled PUSCH.
综上,通过利用相关标准中未定义的PUSCH的结束符号和信道状态信息(Channel State Information,CSI)请求信息的联合状态信息来指示上行控制信息采用ePUCCH或PUSCH进行传输,无需增加新的指示信息,在不改变调度信息中的DCI的大小前提下,实现指示上行控制信息采用何种上行传输信道进行传输的目的,节省了网络传输资源,且能够采用传统盲检方式对下行控制信息(DCI,Downlink Control Information)进行盲检,避免了因改变DCI大小而造成的盲检复杂度增加的问题。In summary, the uplink control information is transmitted by using ePUCCH or PUSCH by using the joint state information of the PUSCH and the channel state information (CSI) request information, which are not defined in the relevant standard, without adding new indication information. Under the premise of not changing the size of the DCI in the scheduling information, the purpose of indicating which uplink transmission channel is used for uplink control information transmission is achieved, the network transmission resource is saved, and the downlink control information (DCI, Downlink Control Information) performs blind detection, avoiding the problem of increased blindness complexity caused by changing the DCI size.
如图5所示,本公开的实施例提供了一种上行控制信息传输方法,具体包括以下步骤51至步骤54。As shown in FIG. 5, an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following
步骤51:获取接入点发送的下行控制信息。Step 51: Obtain downlink control information sent by the access point.
其中,下行控制信息(DCI)包括与调度上行传输信道时相同的字段,且该字段的取值不同于在调度上行传输信道时的所有取值,这里是说DCI仍采用相关标准中的字段长度以实现与相关标准的兼容,且该字段的取值不同于相关标准中已定义的该字段的取值。The downlink control information (DCI) includes the same field as when the uplink transmission channel is scheduled, and the value of the field is different from all values when the uplink transmission channel is scheduled. Here, the DCI still uses the field length in the relevant standard. To achieve compatibility with the relevant standards, and the value of this field is different from the value of the field defined in the relevant standard.
步骤52:根据下行控制信息,确定上行控制信息采用扩展物理上行链路 控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。Step 52: Determine, according to the downlink control information, that the uplink control information is extended physical uplink. The control channel ePUCCH or the physical uplink shared channel PUSCH is transmitted.
其中,由于DCI中字段的取值不同于在调度上行传输信道时的所有取值,也就是说虽然DCI的长度不变,但DCI中未定义的字段取值或未定义的空闲信息状态可用来指示上行控制信息的传输信道。The value of the field in the DCI is different from that in the scheduling of the uplink transmission channel, that is, although the length of the DCI is unchanged, the undefined field value or the undefined idle information state in the DCI can be used. A transmission channel indicating uplink control information.
步骤53:当确定上行控制信息采用ePUCCH进行传输时,利用被调度的ePUCCH传输待传输的上行控制信息。Step 53: When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
其中,上行控制信息包括信道状态指示信息CSI和混合自动重传请求应答/非应答HARQ-ACK/NACK。The uplink control information includes channel state indication information CSI and hybrid automatic repeat request acknowledgement/non-response HARQ-ACK/NACK.
步骤54:当下行控制信息的调制与编码策略MCS指示传输块无效时,根据CSI请求信息和所述MCS的值,确定被调度的PUSCH传输待传输的上行控制信息中的CSI和/或HARQ-ACK/NACK。Step 54: When the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, determine CSI and/or HARQ in the uplink control information to be transmitted by the scheduled PUSCH according to the CSI request information and the value of the MCS. ACK/NACK.
MCS为特殊值(如29或30)时表示对应TB无效。当DCI中所有TB均无效、且CSI Request指示非周期CSI上报时,指示通过PUSCH来传输上行控制信息(Uplink Control Information,UCI),且该UCI至少包括CSI。而是否传输HARQ-ACK/NACK则可通过其他MCS特殊取值、NDI、RV等单独或者联合指示。下面以单独指示为例进行说明:When the MCS is a special value (such as 29 or 30), it means that the corresponding TB is invalid. When all the TBs in the DCI are invalid, and the CSI Request indicates that the aperiodic CSI is reported, the uplink control information (UCI) is transmitted through the PUSCH, and the UCI includes at least the CSI. Whether to transmit HARQ-ACK/NACK may be indicated by other MCS special values, NDI, RV, etc., alone or in combination. The following is an example of a separate instruction:
具体地,当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示CSI上报、且MCS的值为第一值时,确定被调度的PUSCH仅传输待传输的上行控制信息中的CSI。例如,当DCI中的TB均通过MCS=29无效、且CSI Request指示CSI上报时,通过PUSCH传输CSI。Specifically, when the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, the CSI request information indicates CSI reporting, and the value of the MCS is the first value, it is determined that the scheduled PUSCH only transmits the uplink control information to be transmitted. CSI. For example, when the TBs in the DCI are all invalidated by MCS=29 and the CSI Request indicates CSI reporting, the CSI is transmitted through the PUSCH.
或者,当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示CSI上报、且MCS的值为第二值时,确定被调度的PUSCH传输待传输的上行控制信息中的CSI和HARQ-ACK/NACK。例如,当DCI中的TB均通过MCS=30无效且CSI Request指示CSI上报时,通过PUSCH传输CSI和HARQ-ACK/NACK。Or, when the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, the CSI request information indicates CSI reporting, and the value of the MCS is the second value, determining that the scheduled PUSCH transmits the CSI in the uplink control information to be transmitted. HARQ-ACK/NACK. For example, when the TBs in the DCI are all invalidated by MCS=30 and the CSI Request indicates CSI reporting, CSI and HARQ-ACK/NACK are transmitted through the PUSCH.
或者,当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示无CSI上报、且所述MCS的值为第二值时,确定被调度的PUSCH仅传输上行控制信息中的HARQ-ACK/NACK。例如,当DCI中的TB均通过MCS=30无效且CSI Request指示无CSI上报时,通过PUSCH仅传输 HARQ-ACK/NACK。Alternatively, when the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, the CSI request information indicates that there is no CSI report, and the value of the MCS is the second value, it is determined that the scheduled PUSCH only transmits the HARQ in the uplink control information. -ACK/NACK. For example, when the TBs in the DCI are all invalid by MCS=30 and the CSI Request indicates that there is no CSI reporting, only the PUSCH is transmitted. HARQ-ACK/NACK.
如图6所示,本公开的实施例提供了一种上行控制信息传输方法,具体包括以下步骤61至步骤64。As shown in FIG. 6, an embodiment of the present disclosure provides an uplink control information transmission method, which specifically includes the following
步骤61:获取接入点发送的下行控制信息。Step 61: Obtain downlink control information sent by the access point.
其中,下行控制信息(DCI)包括与调度上行传输信道时相同的字段,且该字段的取值不同于在调度上行传输信道时的所有取值,这里是说DCI仍采用相关标准中的字段长度以实现与相关标准的兼容,且该字段的取值不同于相关标准中已定义的该字段的取值。The downlink control information (DCI) includes the same field as when the uplink transmission channel is scheduled, and the value of the field is different from all values when the uplink transmission channel is scheduled. Here, the DCI still uses the field length in the relevant standard. To achieve compatibility with the relevant standards, and the value of this field is different from the value of the field defined in the relevant standard.
步骤62:根据下行控制信息,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。Step 62: Determine, according to the downlink control information, that the uplink control information is transmitted by using an extended physical uplink control channel ePUCCH or a physical uplink shared channel PUSCH.
其中,由于DCI中字段的取值不同于在调度上行传输信道时的所有取值,也就是说虽然DCI的长度不变,但DCI中未定义的字段取值或未定义的空闲信息状态可用来指示上行控制信息的传输信道。The value of the field in the DCI is different from that in the scheduling of the uplink transmission channel, that is, although the length of the DCI is unchanged, the undefined field value or the undefined idle information state in the DCI can be used. A transmission channel indicating uplink control information.
步骤63:当确定上行控制信息采用ePUCCH进行传输时,利用被调度的ePUCCH传输待传输的上行控制信息。Step 63: When it is determined that the uplink control information is transmitted by using the ePUCCH, the uplink control information to be transmitted is transmitted by using the scheduled ePUCCH.
其中,上行控制信息包括信道状态指示信息CSI和混合自动重传请求应答/非应答HARQ-ACK/NACK。The uplink control information includes channel state indication information CSI and hybrid automatic repeat request acknowledgement/non-response HARQ-ACK/NACK.
步骤64:当下行控制信息的调制与编码策略MCS指示传输块无效时,根据CSI请求信息、新数据指示信息和冗余版本信息,确定被调度的PUSCH传输待传输的上行控制信息中的CSI和/或HARQ-ACK/NACK。Step 64: When the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, determine, according to the CSI request information, the new data indication information, and the redundancy version information, the CSI in the uplink control information to be transmitted by the scheduled PUSCH transmission. / or HARQ-ACK/NACK.
MCS为特殊值(如29或30)时表示对应TB无效。当DCI中所有TB均无效、且CSI Request指示非周期CSI上报时,指示通过PUSCH来进传输UCI,且该UCI至少包括CSI。而是否传输HARQ-ACK/NACK则可通过其他MCS特殊取值、NDI、RV等单独或者联合指示。下面以联合指示为例进行说明。When the MCS is a special value (such as 29 or 30), it means that the corresponding TB is invalid. When all the TBs in the DCI are invalid, and the CSI Request indicates that the aperiodic CSI is reported, it indicates that the UCI is transmitted through the PUSCH, and the UCI includes at least the CSI. Whether to transmit HARQ-ACK/NACK may be indicated by other MCS special values, NDI, RV, etc., alone or in combination. The following is an example of a joint instruction.
具体地,当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示CSI上报、新数据指示信息指示为新传数据、且冗余版本信息的值为0时,确定被调度的PUSCH仅传输待传输的上行控制信息中的CSI。例如,当DCI中的TB均通过MCS=29无效、CSI Request指示CSI上报、至 少一个或者两个NDI指示新传、且RV=0时,通过PUSCH传输CSI。Specifically, when the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, the CSI request information indicates CSI reporting, the new data indication information indicates new transmit data, and the value of the redundancy version information is 0, the scheduled The PUSCH transmits only the CSI in the uplink control information to be transmitted. For example, when the TB in the DCI is invalid by MCS=29, the CSI Request indicates CSI reporting, to When one or two NDIs indicate a new transmission and RV=0, the CSI is transmitted through the PUSCH.
或者,当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示CSI上报、新数据指示信息指示为新传数据、且冗余版本信息的值为1时,确定被调度的PUSCH传输待传输的上行控制信息中的CSI和HARQ-ACK/NACK。当DCI中的TB均通过MCS=29无效、CSI Request指示CSI上报、至少一个或者两个NDI指示新传、且RV=1时,通过PUSCH传输CSI和HARQ-ACK/NACK。Or, when the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, the CSI request information indicates CSI reporting, the new data indication information indicates new transmit data, and the value of the redundancy version information is 1, determining the scheduled PUSCH. Transmitting CSI and HARQ-ACK/NACK in the uplink control information to be transmitted. When the TBs in the DCI are all invalid by MCS=29, CSI Request indicates CSI reporting, at least one or two NDIs indicate new transmission, and RV=1, CSI and HARQ-ACK/NACK are transmitted through the PUSCH.
或者,当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示无CSI上报、新数据指示信息指示为新传数据、且冗余版本信息的值为1时,确定被调度的PUSCH仅传输上行控制信息中的HARQ-ACK/NACK。当DCI中的TB均通过MCS=29无效、CSI Request指示无CSI上报、至少一个或者两个NDI指示新传、且RV=1时,通过PUSCH仅传输HARQ-ACK/NACK。Alternatively, when the modulation and coding policy MCS of the downlink control information indicates that the transport block is invalid, the CSI request information indicates that there is no CSI report, the new data indication information indicates new transmit data, and the value of the redundancy version information is 1, the scheduled The PUSCH transmits only HARQ-ACK/NACK in the uplink control information. When the TBs in the DCI are all invalid by MCS=29, the CSI Request indicates no CSI reporting, at least one or two NDIs indicate new transmissions, and RV=1, only HARQ-ACK/NACK is transmitted through the PUSCH.
此外,当DCI中的TB中至少一个TB有效、CSI Request指示CSI上报、至少一个或者两个NDI指示新传数据、且RV=0时,通过PUSCH传输CSI和UL-SCH。In addition, when at least one TB in the TB in the DCI is valid, the CSI Request indicates CSI reporting, at least one or two NDIs indicate new transmission data, and RV=0, the CSI and the UL-SCH are transmitted through the PUSCH.
当DCI中的TB中至少一个TB有效,CSI Request指示无CSI传输、至少一个或者两个NDI指示新传数据、且RV=0时,通过PUSCH仅传输UL-SCH。When at least one TB in the TB in the DCI is valid, the CSI Request indicates that there is no CSI transmission, at least one or two NDIs indicate new transmission data, and when RV=0, only the UL-SCH is transmitted through the PUSCH.
当DCI中的TB中至少一个TB有效、CSI Request指示CSI上报、至少一个或者两个NDI指示新传数据、且RV=1时,通过PUSCH传输CSI、HARQ-ACK/NACK和UL-SCH。When at least one TB in the TB in the DCI is valid, the CSI Request indicates CSI reporting, at least one or two NDIs indicate new transmission data, and RV=1, CSI, HARQ-ACK/NACK, and UL-SCH are transmitted through the PUSCH.
当DCI中的TB中至少一个TB有效、CSI Request指示CSI上报、至少一个或者两个NDI指示新传数据、且RV=1时,通过PUSCH传输HARQ-ACK/NACK和UL-SCH。When at least one TB in the TB in the DCI is valid, the CSI Request indicates CSI reporting, at least one or two NDIs indicate new transmission data, and RV=1, the HARQ-ACK/NACK and the UL-SCH are transmitted through the PUSCH.
综上,利用下行控制信息中未定义的空闲状态来指示上行控制信息采用ePUCCH或PUSCH进行传输,无需增加新的指示信息,在不改变调度信息中的DCI的大小前提下,实现指示上行控制信息采用何种上行传输信道进行传输的目的,节省了网络传输资源,且能够采用传统盲检方式对DCI进行盲检,避免了因改变DCI大小而造成的盲检复杂度增加的问题。 In summary, the idle control state that is not defined in the downlink control information is used to indicate that the uplink control information is transmitted by using the ePUCCH or the PUSCH, and the new uplink indication information is not required, and the uplink control information is implemented without changing the size of the DCI in the scheduling information. The purpose of transmitting the uplink transmission channel is to save the network transmission resources, and the blind detection can be performed by the traditional blind detection method, thereby avoiding the problem of increasing the blind detection complexity caused by changing the DCI size.
其中,以上图1至图6所示的实施例中,指示上行控制信息UCI在何种信道进行传输的状态信息,与指示上行控制信息中不同控制信息是否传输的状态信息不同。下面本实施例将结合具体应用场景,介绍同时指示UCI在何种信道传输以及UCI中各控制信息是否传输的方法。In the embodiment shown in FIG. 1 to FIG. 6 above, the status information indicating which channel the uplink control information UCI is transmitted is different from the status information indicating whether the different control information is transmitted in the uplink control information. The following embodiment will introduce a method for indicating which channel transmission of the UCI and whether each control information in the UCI is transmitted in combination with a specific application scenario.
具体地,本公开的实施例的上行控制信息传输方法,具体包括以下步骤:获取接入点发送的下行控制信息;根据下行控制信息中的调制与编码策略MCS、CSI请求信息、新数据指示信息和冗余版本信息联合指示,以确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输;当确定上行控制信息采用ePUCCH进行传输时,利用被调度的ePUCCH传输待传输的上行控制信息;当确定上行控制信息采用PUSCH进行传输时,利用被调度的PUSCH传输待传输的上行控制信息。Specifically, the uplink control information transmission method of the embodiment of the present disclosure specifically includes the following steps: acquiring downlink control information sent by an access point; and performing modulation and coding policy MCS, CSI request information, and new data indication information according to downlink control information. And the redundancy version information joint indication to determine that the uplink control information is transmitted by using the extended physical uplink control channel ePUCCH or the physical uplink shared channel PUSCH; when determining that the uplink control information is transmitted by using the ePUCCH, using the scheduled ePUCCH transmission Uplink control information to be transmitted; when it is determined that the uplink control information is transmitted by using the PUSCH, the uplink control information to be transmitted is transmitted by using the scheduled PUSCH.
其中,下行控制信息(DCI)包括与调度上行传输信道时相同的字段,且该字段的取值不同于在调度上行传输信道时的所有取值,这里是说DCI仍采用相关标准中的字段长度以实现与相关标准的兼容,且该字段的取值不同于相关标准中已定义的该字段的取值。此外,下行控制信息中的调制与编码策略MCS、CSI请求信息、新数据指示信息和冗余版本信息的联合取值不同于相关标准中已定义的状态信息组合,可参照下表方式进行指示:The downlink control information (DCI) includes the same field as when the uplink transmission channel is scheduled, and the value of the field is different from all values when the uplink transmission channel is scheduled. Here, the DCI still uses the field length in the relevant standard. To achieve compatibility with the relevant standards, and the value of this field is different from the value of the field defined in the relevant standard. In addition, the combination of the modulation and coding policy MCS, the CSI request information, the new data indication information, and the redundancy version information in the downlink control information is different from the state information combination defined in the relevant standard, and can be indicated by referring to the following table:
具体地,当MCS取值在0到28之间,NDI指示新传(或称为初传),RV的值为0、CSI Request指示无CSI请求(按照1-bit的CSI Request为例,0表示无,1表示有,多个bit的CSI Request同理,下同);或者,当MCS取值在0到28之间,NDI指示重传,RV的值为0到3的任意值(假设0到3的RV均可指示,部分DCI format可能仅支持部分RV,例如仅支持RV0和RV2),CSI Request指示无请求,则指示仅UL-SCH在PUSCH上传输。Specifically, when the value of the MCS is between 0 and 28, the NDI indicates a new transmission (or referred to as an initial transmission), the value of the RV is 0, and the CSI Request indicates that there is no CSI request (according to the 1-bit CSI Request, for example, 0 Indicates none, 1 means yes, CSI Request of multiple bits is the same, the same below); or, when MCS is between 0 and 28, NDI indicates retransmission, and the value of RV is any value from 0 to 3. The RVs of 0 to 3 may indicate that part of the DCI format may only support partial RVs, for example, only RV0 and RV2), and the CSI Request indicates that there is no request, indicating that only the UL-SCH is transmitted on the PUSCH.
当MCS取值在0到28之间,NDI指示新传,RV的值为0,CSI Request指示有请求;或者,当MCS取值在0到28之间,NDI指示重传,RV的值为0到3的任意值,CSI Request指示有请求,则指示UL-SCH和非周期CSI同时在PUSCH上传输。When the MCS value is between 0 and 28, the NDI indicates a new transmission, the RV value is 0, and the CSI Request indicates that there is a request; or, when the MCS value is between 0 and 28, the NDI indicates retransmission, and the value of the RV is Any value from 0 to 3, if the CSI Request indicates that there is a request, it indicates that the UL-SCH and the aperiodic CSI are simultaneously transmitted on the PUSCH.
当MCS取值为29(特殊值,指示TB无效,当子帧有两个TB时,两个TB均需要被无效,下同),NDI指示值为1,RV的值为2时(假设所有调度上行的DCI format均支持RV0和RV2,),CSI Request指示有请求,则指示非周期CSI反馈在PUSCH上传输。When the MCS value is 29 (special value, indicating that the TB is invalid, when the subframe has two TBs, both TBs need to be invalid, the same below), the NDI indication value is 1, and the RV value is 2 (assuming all The DCI format for scheduling uplinks supports RV0 and RV2. The CSI Request indicates that there is a request, indicating that the aperiodic CSI feedback is transmitted on the PUSCH.
当MCS取值在0到28之间,NDI指示新传,RV的值为2,CSI Request指示无请求,则指示UL-SCH和ACK/NACK同时在PUSCH上传输。When the value of the MCS is between 0 and 28, the NDI indicates a new transmission, and the value of the RV is 2. If the CSI Request indicates no request, the UL-SCH and the ACK/NACK are simultaneously transmitted on the PUSCH.
当MCS取值在0到28之间,NDI指示新传,RV的值为2,CSI Request 指示有请求,则指示UL-SCH、非周期CSI和ACK/NACK同时在PUSCH上传输。When the MCS value is between 0 and 28, the NDI indicates a new transmission, and the RV value is 2, CSI Request. When there is a request indicating, the UL-SCH, the aperiodic CSI, and the ACK/NACK are simultaneously transmitted on the PUSCH.
当MCS取值为29,NDI指示的值为1,RV的值为0,CSI Request指示无请求时,则指示ACK/NACK反馈在PUSCH上传输。When the MCS value is 29, the value indicated by the NDI is 1, and the value of the RV is 0. When the CSI Request indicates no request, the ACK/NACK feedback is indicated to be transmitted on the PUSCH.
当MCS取值为29,NDI指示的值为1,RV的值为0,CSI Request指示有请求时,则指示ACK/NACK和非周期CSI同时在PUSCH上传输。When the value of the MCS is 29, the value of the NDI indication is 1, and the value of the RV is 0. When the CSI Request indicates that there is a request, it indicates that the ACK/NACK and the aperiodic CSI are simultaneously transmitted on the PUSCH.
当MCS取值为29,NDI指示的值为0,RV的值为2,CSI Request指示有请求时,指示非周期CSI在ePUCCH上传输。When the value of MCS is 29, the value indicated by NDI is 0, and the value of RV is 2. When CSI Request indicates that there is a request, it indicates that aperiodic CSI is transmitted on ePUCCH.
当MCS取值为29,NDI指示的值为0,RV的值为0,CSI Request指示有请求时,指示ACK/NACK和非周期CSI同时在ePUCCH上传输。When the value of the MCS is 29, the value indicated by the NDI is 0, and the value of the RV is 0. When the CSI Request indicates that there is a request, the ACK/NACK and the aperiodic CSI are simultaneously transmitted on the ePUCCH.
当MCS取值为29,NDI指示的值为0,RV的值为0,CSI Request指示无请求时,指示ACK/NACK在ePUCCH上传输。When the value of MCS is 29, the value indicated by NDI is 0, and the value of RV is 0. When CSI Request indicates no request, it indicates that ACK/NACK is transmitted on ePUCCH.
进一步地,针对一个DCI调度多个上行子帧的情况,每个被调度子帧至少有一个RV和NDI的指示位,可以根据上述方法使用的RV和NDI对应的子帧来确定UCI在具体在哪个子帧进行传输。Further, for a case where a DCI schedules multiple uplink subframes, each scheduled subframe has at least one RV and NDI indication bit, and the UVI corresponding to the RV and the NDI used in the foregoing method may be used to determine that the UCI is specific. Which subframe is transmitted.
这样,利用下行控制信息中未定义的MCS、CSI、NDI和RV联合的空闲状态,来同时指示上行控制信息UCI采用ePUCCH或PUSCH进行传输,以及UCI中不同控制信息是否发送,而无需增加新的指示信息,在不改变调度信息中的DCI的大小前提下,实现指示上行控制信息采用何种上行传输信道进行传输的目的,节省了网络传输资源,且能够采用传统盲检方式对DCI进行盲检,避免了因改变DCI大小而造成的盲检复杂度增加的问题。In this way, the idle state of the MCS, CSI, NDI, and RV, which are not defined in the downlink control information, is used to simultaneously indicate that the uplink control information UCI is transmitted by using the ePUCCH or the PUSCH, and whether different control information in the UCI is sent, without adding a new one. The indication information, under the premise of not changing the size of the DCI in the scheduling information, achieves the purpose of indicating which uplink transmission channel is used for transmission of the uplink control information, saves network transmission resources, and can perform blind detection on the DCI by using a traditional blind detection method. This avoids the problem of increased blindness complexity caused by changing the DCI size.
以上的实施例分别就上行控制信息传输方法做出介绍,下面本实施例将结合附图对其对应的装置做进一步说明。The above embodiments respectively introduce the uplink control information transmission method, and the following embodiments will further explain the corresponding devices in conjunction with the drawings.
具体地,如图7所示,本公开实施例的上行控制信息的传输装置70,具体包括获取模块71、处理模块72、第一传输模块73和第二传输模块74。Specifically, as shown in FIG. 7, the uplink control
获取模块71用于获取接入点发送的下行控制信息;其中,下行控制信息包括与调度上行传输信道时相同的字段,且字段的值不同与该字段在调度上行传输信道时的取值。处理模块72用于根据下行控制信息,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道
PUSCH进行传输。第一传输模块73用于当确定上行控制信息采用ePUCCH进行传输时,利用被调度的ePUCCH传输待传输的上行控制信息。第二传输模块74用于当确定上行控制信息采用PUSCH进行传输时,利用被调度的PUSCH传输待传输的上行控制信息。The obtaining
其中,该处理模块72包括第一确定子模块721,第一确定子模块721用于根据下行控制信息中的资源分配信息,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。其中,资源分配信息所对应的第一字段的取值不同于第一字段在资源分配时的取值。The
其中,第一确定子模块721包括:第一确定单元7211,第一确定单元7211用于当下行控制信息中的资源分配信息中的M个bit位中有N个bit位的值为1时,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。其中,M和N均为正整数,并且N的取值不同于资源分配信息在资源分配时取值为1的可能数目。The first determining
进一步地,当下行控制信息中的资源分配信息中的M个bit位中的特定N个bit位的值为1时,指示上行控制信息中是否携带有混合自动重传请求应答/非应答HARQ-ACK/NACK、和/或上行控制信息所占用的ePUCCH或PUSCH中的交织单元的个数和编号。Further, when the value of the specific N bit bits in the M bit bits in the resource allocation information in the downlink control information is 1, it indicates whether the hybrid automatic retransmission request response/non-response HARQ is carried in the uplink control information. The number and number of interleaved units in the ePUCCH or PUSCH occupied by the ACK/NACK, and/or the uplink control information.
其中,第一确定子模块721包括:第二确定单元7212,第二确定单元7212用于当下行控制信息中的资源分配信息中用于指示交织单元调度的bit位的值不同于资源分配信息在资源分配时的取值时,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。The first determining
其中,处理模块72包括:第二确定子模块722,第二确定模块722用于根据下行控制信息中的新数据指示信息和冗余版本信息的联合取值,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。The
其中,该第二确定子模块722包括:第三确定单元7221,用于当下行控制信息中的新数据指示信息指示为新传数据、且冗余版本信息的值不为0时,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。
The second determining
具体地,当下行控制信息中的新数据指示信息所对应的传输块中、至少一个传输块中传输的新数据指示的值发生变化时,表示新数据指示信息指示为新传数据。Specifically, when the value indicated by the new data transmitted in the at least one transport block in the transport block corresponding to the new data indication information in the downlink control information changes, the new data indication information is indicated as the newly transmitted data.
其中,处理模块72包括:第三确定子模块723,第三确定子模块723用于当下行控制信息指示在所调度的PUSCH的最后一个符号中发送探测参考信号SRS时,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。The
其中,上行控制信息包括:信道状态指示信息CSI和混合自动重传请求应答/非应答HARQ-ACK/NACK。The uplink control information includes: channel state indication information CSI and hybrid automatic repeat request acknowledgement/non-response HARQ-ACK/NACK.
上述第二传输模块74包括:第一传输子模块741,第一传输子模块741用于当下行控制信息的调制与编码策略MCS指示传输块无效时,根据CSI请求信息和MCS的值,利用被调度的PUSCH传输待传输的上行控制信息中的CSI和/或HARQ-ACK/NACK;或者,第二传输子模块742,第二传输子模块742用于当下行控制信息的调制与编码策略MCS指示传输块无效时,根据CSI请求信息、新数据指示信息和冗余版本信息,利用被调度的PUSCH传输待传输的上行控制信息中的CSI和/或HARQ-ACK/NACK。The
其中,第一传输子模块741包括:第一传输单元7411,第一传输单元7411用于当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示CSI上报、且MCS的值为第一值时,利用被调度的PUSCH仅传输待传输的上行控制信息中的CSI;或者,第二传输单元7412,第二传输单元7412用于当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示CSI上报、且MCS的值为第二值时,利用被调度的PUSCH传输待传输的上行控制信息中的CSI和HARQ-ACK/NACK;或者,第三传输单元7413,第三传输单元7413用于当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示无CSI上报、且MCS的值为第二值时,利用被调度的PUSCH仅传输上行控制信息中的HARQ-ACK/NACK。The
其中,第二传输子模块742包括:第四传输单元7421,第四传输单元7421用于当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示CSI上报、新数据指示信息指示为新传数据、且冗余版本信息的值为0
时,利用被调度的PUSCH仅传输待传输的上行控制信息中的CSI;或者,第五传输单元7422,第五传输单元7422用于当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示CSI上报、新数据指示信息指示为新传数据、且冗余版本信息的值为1时,利用被调度的PUSCH传输待传输的上行控制信息中的CSI和HARQ-ACK/NACK;或者,第六传输单元7423,第六传输单元7423用于当下行控制信息的调制与编码策略MCS指示传输块无效、CSI请求信息指示无CSI上报、新数据指示信息指示为新传数据、且冗余版本信息的值为1时,利用被调度的PUSCH仅传输上行控制信息中的HARQ-ACK/NACK。The
本实施例通过利用下行控制信息中未定义的空闲状态来指示上行控制信息采用ePUCCH或PUSCH进行传输,无需增加新的指示信息,在不改变调度信息中的DCI的大小前提下,实现指示上行控制信息采用何种上行传输信道进行传输的目的,节省了网络传输资源,且能够采用传统盲检方式对DCI进行盲检,避免了因改变DCI大小而造成的盲检复杂度增加的问题。The present embodiment uses the undefined idle state in the downlink control information to indicate that the uplink control information is transmitted by using the ePUCCH or the PUSCH, and does not need to add new indication information, and implements the indication uplink control without changing the size of the DCI in the scheduling information. The purpose of transmitting the uplink transmission channel is to save the network transmission resources, and the blind detection can be performed by the traditional blind detection method, thereby avoiding the problem of increased blind detection complexity caused by changing the DCI size.
本公开的该装置实施例是与上述方法实施例对应的装置,上述方法实施例中的所有实现手段均适用于该装置的实施例中,也能达到相同的技术效果。The device embodiment of the present disclosure is a device corresponding to the foregoing method embodiment. All the implementation methods in the foregoing method embodiments are applicable to the device embodiment, and the same technical effects can be achieved.
对应于上述应用于用户终端侧的上行控制信息传输方法,本实施例提供了对应的用户终端。如图8所示,该用户终端具体包括接收机81、处理器82和发送机83。Corresponding to the uplink control information transmission method applied to the user terminal side, the embodiment provides a corresponding user terminal. As shown in FIG. 8, the user terminal specifically includes a
接收机81用于获取接入点发送的下行控制信息;其中,下行控制信息包括与调度上行传输信道时相同的字段;且字段的值不同于该字段在调度上行传输信道时的取值。处理器82与接收机81连接并且用于实现如下功能:根据下行控制信息,确定上行控制信息采用扩展物理上行链路控制信道ePUCCH或物理上行链路共享信道PUSCH进行传输。发送机83与处理器82连接并且用于当确定上行控制信息采用ePUCCH进行传输时,利用被调度的ePUCCH传输待传输的上行控制信息;或者,当确定上行控制信息采用PUSCH进行传输时,利用被调度的PUSCH传输待传输的上行控制信息。The
其中,处理器82还可以被配置并实现上述装置实施例中所有模块实现的功能,也能达到和上述装置实施例所能达到的相同的技术效果。
The
此外,需要指出的是,在本公开的装置和方法中,显然,各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且,执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行,但是并不需要一定按照时间顺序执行,某些步骤可以并行或彼此独立地执行。对本领域的普通技术人员而言,能够理解本公开的方法和装置的全部或者任何步骤或者部件,可以在任何计算装置(包括处理器、存储介质等)或者计算装置的网络中,以硬件、固件、软件或者它们的组合加以实现,这是本领域普通技术人员在阅读了本公开的说明的情况下运用他们的基本编程技能就能实现的。Moreover, it should be noted that in the apparatus and method of the present disclosure, it is apparent that the various components or steps may be decomposed and/or recombined. These decompositions and/or recombinations should be considered as equivalents to the present disclosure. Also, the steps of performing the above-described series of processes may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order, and some steps may be performed in parallel or independently of each other. It will be appreciated by those skilled in the art that all or any of the steps or components of the methods and apparatus of the present disclosure may be in a network of any computing device (including a processor, storage medium, etc.) or computing device, in hardware, firmware The software, or a combination thereof, is implemented by those of ordinary skill in the art using their basic programming skills while reading the description of the present disclosure.
因此,本公开的目的还可以通过在任何计算装置上运行一个程序或者一组程序来实现。所述计算装置可以是公知的通用装置。因此,本公开的目的也可以仅仅通过提供包含实现所述方法或者装置的程序代码的程序产品来实现。也就是说,这样的程序产品也构成本公开,并且存储有这样的程序产品的存储介质也构成本公开。显然,所述存储介质可以是任何公知的存储介质或者将来所开发出来的任何存储介质。还需要指出的是,在本公开的装置和方法中,显然,各部件或各步骤是可以分解和/或重新组合的。这些分解和/或重新组合应视为本公开的等效方案。并且,执行上述系列处理的步骤可以自然地按照说明的顺序按时间顺序执行,但是并不需要一定按照时间顺序执行。某些步骤可以并行或彼此独立地执行。Thus, the objects of the present disclosure can also be achieved by running a program or a set of programs on any computing device. The computing device can be a well-known general purpose device. Accordingly, the objects of the present disclosure may also be realized by merely providing a program product including program code for implementing the method or apparatus. That is to say, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure. It will be apparent that the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present disclosure, it is apparent that various components or steps may be decomposed and/or recombined. These decompositions and/or recombinations should be considered as equivalents to the present disclosure. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order. Certain steps may be performed in parallel or independently of one another.
以上所述是本公开的可选实施方式,应当指出,对于本技术领域的普通技术人员来说,在不脱离本公开所述原理的前提下,还可以作出若干改进和润饰,这些改进和润饰也应视为本公开的保护范围。 The above is an alternative embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present disclosure. It should also be considered as the scope of protection of the present disclosure.
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| CN112929965A (en) * | 2018-06-26 | 2021-06-08 | Oppo广东移动通信有限公司 | Uplink signal transmission method, terminal equipment and network equipment |
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| EP3768011B1 (en) | 2018-03-30 | 2023-08-23 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Uplink control information transmission method and device |
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| WO2020021770A1 (en) * | 2018-07-25 | 2020-01-30 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | Terminal, base station, and communication method |
| CN111586854B (en) * | 2019-02-15 | 2024-03-08 | 大唐移动通信设备有限公司 | Transmission method, terminal and network equipment of physical uplink shared channel |
| CN111865534B (en) | 2019-04-30 | 2021-07-13 | 大唐移动通信设备有限公司 | Information transmission method, network equipment and terminal |
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| CN107801246B (en) | 2019-12-17 |
| CN107801246A (en) | 2018-03-13 |
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