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WO2019128576A1 - Procédé de transmission d'informations d'état de canal, dispositif de communication et appareil - Google Patents

Procédé de transmission d'informations d'état de canal, dispositif de communication et appareil Download PDF

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Publication number
WO2019128576A1
WO2019128576A1 PCT/CN2018/117133 CN2018117133W WO2019128576A1 WO 2019128576 A1 WO2019128576 A1 WO 2019128576A1 CN 2018117133 W CN2018117133 W CN 2018117133W WO 2019128576 A1 WO2019128576 A1 WO 2019128576A1
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WIPO (PCT)
Prior art keywords
csi
partial csi
pusch
transmission
available
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Ceased
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PCT/CN2018/117133
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English (en)
Chinese (zh)
Inventor
司倩倩
高雪娟
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China Academy of Telecommunications Technology CATT
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China Academy of Telecommunications Technology CATT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Priority claimed from CN201810292329.8A external-priority patent/CN109995493B/zh
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Priority to KR1020207020329A priority Critical patent/KR20200096630A/ko
Priority to EP18896050.4A priority patent/EP3716518B1/fr
Priority to JP2020535237A priority patent/JP6999818B2/ja
Priority to US16/772,077 priority patent/US20200366352A1/en
Publication of WO2019128576A1 publication Critical patent/WO2019128576A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • the present disclosure relates to the field of communications technologies, and in particular, to a channel state information transmission method, a communication device, and a device.
  • the aperiodic CSI (Channel State Information) is transmitted through the physical uplink shared channel (PUSCH), and the base station eNodeB triggers the terminal UE to perform the reporting of the aperiodic CSI by scheduling the downlink control information DCI of the uplink data.
  • the downlink control information DCI for scheduling the uplink data an information field in the village is used to trigger the aperiodic CSI reporting.
  • the terminal performs the aperiodic CSI reporting on the PUSCH in the predefined location.
  • the RI rank indication
  • the CQI Channel Quality Indicator
  • PMI Precoding Matrix Indicator
  • the RI is mapped to data symbols #1, #4, #7, #10 (under normal cyclic prefix conditions) or symbol #0 other than DMRS (Demodulation Reference Signal).
  • #3,#5,#8(Under extended cyclic prefix conditions) the number of REs (Resource Element) that are specifically occupied is determined according to the following formula:
  • O is the number of RI bits
  • O CQI-MIN is the number of CQI bits including CRC (Cyclic Redundancy Check).
  • Is 1 Is the scheduling bandwidth of the PUSCH in the current subframe represented by the subcarrier; Is the number of scheduling symbols of the PUSCH in the current subframe; Is the code rate offset value of RI relative to CQI.
  • the remaining resources in the PUSCH are used to transmit CQI/PMI information.
  • the aperiodic CSI transmitted on the PUSCH may also include two parts, where the first part CSI includes the RI and the first part of the CQI/PMI information, and the second part of the CSI includes the remaining CQI/PMI information.
  • the first part of the CSI and the second part of the CSI are independently coded and mapped.
  • An object of the present disclosure is to provide a channel state information transmission method, a communication device, and a device to solve the problem that the related art cannot determine the resources used by each part of the CSI for transmission on the PUSCH.
  • an embodiment of the present disclosure provides a channel state information CSI transmission method, where a CSI includes a first partial CSI and a second partial CSI, and the transmission method includes:
  • the available resources on the PUSCH other than the resources available for the first partial CSI transmission are determined to be resources available on the PUSCH for the second partial CSI transmission.
  • the transmitting method further includes:
  • the step of acquiring the target bit rate used by the first part of the CSI includes:
  • the target code rate of the CSI; the code rate set contains two or more code rates.
  • the specific indication field of the downlink control information includes: one or more of a modulation and coding mode MCS information field, a redundancy version RV information field, a new data indication NDI information field, and a hybrid automatic repeat request HARQ process number indication information field. Combination of one.
  • the code rate set that can be used by the first part of the CSI is predefined, and the downlink control information that can trigger the terminal to send the first part of the CSI is received:
  • the specific indication field in the downlink control information is: a hybrid automatic repeat request HARQ process number indication information field;
  • the indication information of the HARQ process number indication information field is used to indicate a code rate associated with the modulation order of the first partial CSI in the protocol preset table.
  • the modulation order of the first partial CSI is 2
  • the high three-bit information or the low three-bit information of the HARQ process number indication information field is used to indicate that the modulation order in the protocol preset table is 2 associated 8 code rates
  • the modulation order of the first partial CSI is 4, the high three-bit information or the low three-bit information of the HARQ process number indication information field is used to indicate that the modulation order in the protocol preset table is 4 associated 7 code rates;
  • the modulation order of the first partial CSI is 6
  • all the bit information of the HARQ process number indication information field is used to indicate 11 code rates associated with the modulation order of 6 in the protocol preset table.
  • the number of steps including:
  • O CSI-part1 is the number of information bits of the first partial CSI;
  • R Target is the target code rate used by the first partial CSI;
  • Q m is the The modulation order of the first part of the CSI.
  • the determining, on the PUSCH, the available resources except the resources that are available for the first part of the CSI transmission are the resources available on the PUSCH for the second part of the CSI transmission, including:
  • the number of resource elements RE available for the second partial CSI transmission on the PUSCH is determined according to the number of resource elements RE available on the PUSCH for uplink control information UCI transmission and the number of resource elements RE available on the PUSCH for the first partial CSI transmission.
  • the resource unit RE available for the second partial CSI transmission on the PUSCH is determined.
  • the number of steps including:
  • the number of resource units RE that can be used for uplink control information UCI transmission on the PUSCH The calculation formula is:
  • the method further includes:
  • the resource unit RE available for uplink control information UCI transmission on the PUSCH is determined to be a resource unit RE available for the first partial CSI transmission, and it is determined that there is no resource unit RE available for the second partial CSI transmission on the PUSCH.
  • the method further includes: before the step of determining, according to the target code rate used by the first part of the CSI, the resource available for the first part of the CSI transmission on the PUSCH, the method further includes:
  • the downlink control information DCI is parsed to determine that the PUSCH does not include data transmission, and only includes CSI transmission.
  • the method further includes:
  • the step of obtaining a code rate threshold of the second part of the CSI includes:
  • Is the code rate threshold of the second part of CSI Is the target bit rate used by the first part of the CSI; Is a code rate offset value of the first partial CSI; Is the code rate offset value of the second partial CSI.
  • the step of determining, according to the code rate threshold value of the second partial CSI, the number of bits of the second part of the CSI that can be transmitted on the resource of the second part of the CSI transmission on the PUSCH includes:
  • the number of bits is the total number of bits of the second partial CSI
  • the second partial CSI is discarded according to a preset rule until the remaining second partial CSI corresponds to the actual The code rate is less than or equal to the code rate threshold of the second partial CSI, determining that the number of bits of the second partial CSI that can be transmitted on the resources available for the second partial CSI transmission is the remaining second partial CSI inclusion The number of bits.
  • Embodiments of the present disclosure also provide a communication device including: a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor implementing the program to implement the following steps:
  • the available resources on the PUSCH other than the resources available for the first partial CSI transmission are determined to be resources available on the PUSCH for the second partial CSI transmission.
  • the communication device further includes a transceiver, and the transceiver is configured to:
  • the transceiver is further configured to:
  • the target code rate of the CSI; the code rate set contains two or more code rates.
  • the specific indication field of the downlink control information includes: one or more of a modulation and coding mode MCS information field, a redundancy version RV information field, a new data indication NDI information field, and a hybrid automatic repeat request HARQ process number indication information field. Combination of one.
  • the code rate set that can be used by the first part of the CSI is predefined, and the downlink control information that can trigger the terminal to send the first part of the CSI is received:
  • the specific indication field in the downlink control information is: a hybrid automatic repeat request HARQ process number indication information field;
  • the indication information of the HARQ process number indication information field is used to indicate a code rate associated with the modulation order of the first partial CSI in the protocol preset table.
  • the modulation order of the first partial CSI is 2
  • the high three-bit information or the low three-bit information of the HARQ process number indication information field is used to indicate that the modulation order in the protocol preset table is 2 associated 8 code rates
  • the modulation order of the first partial CSI is 4, the high three-bit information or the low three-bit information of the HARQ process number indication information field is used to indicate that the modulation order in the protocol preset table is 4 associated 7 code rates;
  • the modulation order of the first partial CSI is 6
  • all the bit information of the HARQ process number indication information field is used to indicate 11 code rates associated with the modulation order of 6 in the protocol preset table.
  • the processor is further configured to:
  • the processor is further configured to:
  • O CSI-part1 is the number of information bits of the first partial CSI;
  • R Target is the target code rate used by the first partial CSI;
  • Q m is the The modulation order of the first part of the CSI.
  • the processor is further configured to:
  • the number of resource elements RE available for the second partial CSI transmission on the PUSCH is determined according to the number of resource elements RE available on the PUSCH for uplink control information UCI transmission and the number of resource elements RE available on the PUSCH for the first partial CSI transmission.
  • the processor is further configured to:
  • the processor is further configured to:
  • the number of resource units RE available for uplink control information UCI transmission on the PUSCH Calculation formula The number of resource units RE that can be used for uplink control information UCI transmission on the PUSCH The calculation formula is:
  • the processor is further configured to:
  • the resource unit RE available for uplink control information UCI transmission on the PUSCH is determined to be a resource unit RE available for the first partial CSI transmission, and it is determined that there is no resource unit RE available for the second partial CSI transmission on the PUSCH.
  • the transceiver is further configured to: receive downlink control information DCI sent by the base station;
  • the processor is further configured to:
  • the downlink control information DCI is parsed to determine that the PUSCH does not include data transmission, and only includes CSI transmission.
  • the processor is further configured to:
  • the processor is further configured to:
  • Is the code rate threshold of the second part of CSI Is the target bit rate used by the first part of the CSI; Is a code rate offset value of the first partial CSI; Is the code rate offset value of the second partial CSI.
  • the processor is further configured to:
  • the number of bits is the total number of bits of the second partial CSI
  • the second partial CSI is discarded according to a preset rule until the remaining second partial CSI corresponds to the actual The code rate is less than or equal to the code rate threshold of the second partial CSI, determining that the number of bits of the second partial CSI that can be transmitted on the resources available for the second partial CSI transmission is the remaining second partial CSI inclusion The number of bits.
  • An embodiment of the present disclosure further provides a determining apparatus for a transmission resource of a channel state information CSI, where the CSI includes a first partial CSI and a second partial CSI, and the determining apparatus includes:
  • a first determining module configured to determine, according to a target code rate used by the first part of the CSI, a resource that is available for the first part of CSI transmission on the physical uplink shared channel PUSCH;
  • a second determining module configured to determine, on the PUSCH, that the available resources except the resources available for the first partial CSI transmission are resources available on the PUSCH for the second partial CSI transmission.
  • Embodiments of the present disclosure also provide a computer readable storage medium having stored thereon a computer program that, when executed by a processor, implements the steps of the channel state information CSI transmission method as described above.
  • the resources available for the first partial CSI transmission on the PUSCH are determined according to the target code rate of the first partial CSI, and It is determined that the remaining resources on the PUSCH are resources available for the second partial CSI transmission, so that the CSI information on the PUSCH in the 5G NR system can be correctly transmitted, thereby ensuring the performance of the NR system.
  • FIG. 1 is a flow chart showing the steps of a channel state information CSI transmission method according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram showing mapping resources of a first partial CSI and a second partial CSI on a PUSCH in a channel state information CSI transmission method according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of an apparatus for determining transmission resource of channel state information CSI according to an embodiment of the present disclosure.
  • an embodiment of the present disclosure provides a method for transmitting a transmission resource of a channel state information CSI, where the CSI includes a first partial CSI and a second partial CSI, where the transmission method includes:
  • Step 11 Determine, according to a target code rate used by the first part of the CSI, a resource that is available for the first part of CSI transmission on the physical uplink shared channel PUSCH;
  • Step 12 Determine that the available resources on the PUSCH other than the resources available for the first partial CSI transmission are resources available on the PUSCH for the second partial CSI transmission.
  • the channel state information CSI is aperiodic CSI
  • the aperiodic CSI transmitted on the PUSCH includes two parts, a first partial CSI and a second partial CSI.
  • the first part of the CSI includes a rank indication RI and a part of the channel quality indication CQI/precoding matrix indication PMI
  • the second part of the CSI includes the remaining CQI/PMI information.
  • the transmitting method before the step 11, the transmitting method further includes:
  • the downlink control information DCI is parsed to determine that the PUSCH does not include data transmission, and only includes CSI transmission.
  • the transmission method of the CSI transmission resource provided by the embodiment of the present disclosure is applicable to an application scenario that does not include data transmission on the PUSCH and only includes CSI transmission.
  • the downlink control information DCI there is an information field, where the content of the information field is used to trigger the reporting of the CSI, and when the information field indicates that the terminal needs to report the CSI, the terminal performs the CSI through the PUSCH at a predefined location. Reported.
  • the transmitting method further includes:
  • Step 10 Obtain a target code rate used by the first part of the CSI.
  • the target code rate used by the first part of the CSI may be a value predefined in the protocol, a value of the high layer signaling configuration, or a value indicated by a specific information field in the DCI that triggers the PUSCH transmission.
  • the manner of acquiring the target bit rate used by the first part of the CSI includes at least the following four modes, and the communication device may determine the target bit rate used by the first part of the CSI in any one of the following four manners.
  • the manner of determining the target bit rate used by the first part of the CSI includes:
  • Manner 1 The target bit rate used by the first part of the CSI configured by the base station through the high layer signaling is received.
  • the base station directly configures the target bit rate used by the first part of the CSI.
  • Manner 2 receiving a code rate set that can be used by the first part of the CSI that is configured by the base station, and receiving downlink control information that can trigger the terminal to send the first part of the CSI, and determining, according to the indication information of the specific indication field in the downlink control information, One code rate in the set of code rates is used as a target code rate of the first partial CSI; the code rate set includes two or more code rates.
  • the base station pre-configures a code rate set, where the code rate set includes two or more code rates, and the first part CSI can use any one of the code rate sets as the target used by the first part of the CSI.
  • Code rate The specific first rate of the CSI is used as the target code rate, which can be indicated by the specific indication field of the downlink control information DCI, which is a DCI capable of triggering the terminal to send the first partial CSI.
  • Manner 3 pre-defining a set of code rates that can be used by the first part of the CSI in the protocol; receiving downlink control information that can trigger the terminal to send the first part of CSI, and determining, according to the indication information of the specific indication field in the downlink control information, One code rate in the set of code rates is used as a target code rate of the first partial CSI; the code rate set includes two or more code rates.
  • a set of code rates is predefined in a protocol or a standard, and the code rate set also includes two or more code rates, and the first partial CSI may use any one of the code rate sets as the first The target bit rate used by some CSIs.
  • the specific first rate of the CSI is used as the target code rate, which can be indicated by the specific indication field of the downlink control information DCI, which is a DCI capable of triggering the terminal to send the first partial CSI.
  • the specific indication field in the downlink control information is: a hybrid automatic repeat request HARQ process number indication information field;
  • the indication information of the HARQ process number indication information field is used to indicate a code rate associated with the modulation order of the first partial CSI in the protocol preset table.
  • the default form of the above agreement is: Table 6.1.4.1-1 of 3GPP Protocol 38.213. That is, the hybrid automatic retransmission request HARQ process number indication information field indicates the code rate corresponding to the modulation order of the first partial CSI described in Table 6.1.4.1-1 of the 3GPP protocol 38.213.
  • the high three-bit information or the low three-bit information of the HARQ process number indication information field is used to indicate the modulation and the modulation in the protocol preset table. 8 code rates with an order of 2;
  • the modulation order of the first partial CSI is 4, the high three-bit information or the low three-bit information of the HARQ process number indication information field is used to indicate that the modulation order in the protocol preset table is 4 associated 7 code rates;
  • the modulation order of the first partial CSI is 6
  • all the bit information of the HARQ process number indication information field is used to indicate 11 code rates associated with the modulation order of 6 in the protocol preset table.
  • the high N bits in the bit sequence refer to consecutive N bits starting from the first bit of the upper bit in the direction from the upper bit to the lower bit.
  • the high-order three-bit information of the information field of the HARQ process number indicates that the HARQ process number indicates that the information is in the high-to-low-order direction, starting from the first bit information of the upper bit, and three consecutive bit information. .
  • the low-order three-bit information of the information field of the HARQ process number indicates that the HARQ process number indicates that the information is in the low-to-high direction, starting from the first bit information of the lower bit, and consecutive three bits. information.
  • the HARQ process number indication information field generally occupies a 4-bit resource.
  • Manner 4 predefining a set of code rates that can be used by the first part of the CSI in the protocol; receiving high layer signaling of the base station, determining, according to the indication information in the high layer signaling, using a code rate in the set of code rates The target code rate of the first partial CSI; the code rate set includes two or more code rates.
  • a set of code rates is predefined in a protocol or a standard, and the code rate set also includes two or more code rates, and the first partial CSI may use any one of the code rate sets as the first The target bit rate used by some CSIs. Specifically, the specific first rate of the CSI is used as the target code rate, which can be directly indicated by the base station through high layer signaling.
  • the specific indication field of the downlink control information includes: a modulation and coding mode MCS information field, a redundancy version RV information field, a new data indication NDI information field, and a hybrid automatic repeat request HARQ process number indication information field.
  • a modulation and coding mode MCS information field includes: a modulation and coding mode MCS information field, a redundancy version RV information field, a new data indication NDI information field, and a hybrid automatic repeat request HARQ process number indication information field.
  • the downlink control information DCI when the first part of the CSI specifically uses the code rate of the first set of CSI as the target code rate of the first partial CSI by using the downlink control information DCI or the high layer signaling of the base station, the downlink control information DCI is used.
  • the indication information of the specific indication domain or the indication information in the high layer signaling may directly indicate a certain code rate in the code rate set or indirectly indicate the code rate by indicating a certain code rate sequence number in the code rate set.
  • the code rate set is ⁇ 0.08, 0.15, 0.25, 0.35, 0.45, 0.60, 0.80 ⁇
  • the indication information may directly indicate that the target code rate of the first partial CSI is 0.15, or the indication information may indicate the target bit rate of the first partial CSI.
  • the second value in the set of code rates indirectly indicates that the target code rate is 0.15.
  • step 11 in the above embodiment of the present disclosure includes:
  • the determining, according to the target code rate used by the first partial CSI, the information bit number of the first partial CSI, and the modulation order of the first partial CSI, determining resource elements available on the PUSCH for the first partial CSI transmission The number of steps for RE, including:
  • O CSI-part1 is the number of information bits of the first partial CSI;
  • R Target is the target code rate used by the first partial CSI;
  • Q m is the The modulation order of the first part of the CSI.
  • the PUSCH can be used for the uplink control information UCI.
  • the transmitted resource elements RE are each determined to be resource elements RE available for the first partial CSI transmission, and it is determined that there are no resource elements RE available for the second partial CSI transmission on the PUSCH.
  • the number of REs available for UCI transmission on the PUSCH is set to the upper limit of the number of resource units available for the first partial CSI transmission, when the calculated number of REs available for the first partial CSI transmission is greater than the RE available for UCI transmission on the PUSCH
  • the number of REs available for the first partial CSI transmission in this transmission is equal to the number of REs available for UCI transmission on the PUSCH.
  • step 12 includes:
  • the number of resource elements RE available for the second partial CSI transmission on the PUSCH is determined according to the number of resource elements RE available on the PUSCH for uplink control information UCI transmission and the number of resource elements RE available on the PUSCH for the first partial CSI transmission.
  • the determining, according to the number of resource units RE available for uplink control information UCI transmission on the PUSCH and the number of resource units RE available on the PUSCH for the first partial CSI transmission, determining resources available on the PUSCH for the second partial CSI transmission include:
  • the number of REs available for UCI transmission on the PUSCH minus the number of REs available for the first partial CSI transmission on the PUSCH and the number of REs used for HARQ-ACK transmission are available for the second part of the CSI on the PUSCH.
  • the number of REs transmitted is the number of REs transmitted.
  • the method further includes:
  • the step of acquiring a code rate threshold of the second part of the CSI includes:
  • Is the code rate threshold of the second part of CSI Is the target bit rate used by the first part of the CSI; Is a code rate offset value of the first partial CSI; Is the code rate offset value of the second partial CSI.
  • the determining, according to the code rate threshold value of the second partial CSI, the step of determining, on the PUSCH, the number of bits of the second partial CSI that can be transmitted on the resource of the second partial CSI transmission including :
  • the number of bits is the total number of bits of the second partial CSI
  • the second partial CSI is discarded according to a preset rule until the remaining second partial CSI corresponds to the actual The code rate is less than or equal to the code rate threshold of the second partial CSI, determining that the number of bits of the second partial CSI that can be transmitted on the resources available for the second partial CSI transmission is the remaining second partial CSI inclusion The number of bits.
  • the actual code rate corresponding to the second part of the CSI specifically refers to the actual code rate corresponding to the total number of bits included in the second part of the CSI.
  • the resource used for transmitting the second part of the CSI may be smaller than the actual resource that the second part of the CSI needs to occupy.
  • the second part of the CSI may not be used for the second transmission.
  • Part of the CSI is transmitted over the resource, at which point it is necessary to determine the number of bits of the second partial CSI that it can transmit on the resources available for the second partial CSI transmission, thereby ensuring that the resources available for the second partial CSI transmission are correct.
  • a portion of the bits of the second portion of the CSI are transmitted.
  • a resource available for the second partial CSI transmission on the PUCSCH includes a total of 50 REs; the second partial CSI uses QPSK (Quadrature Phase Shift Keyin) modulation, and the second partial CSI code
  • QPSK Quadrature Phase Shift Keyin
  • the rate threshold is 0.4.
  • the rate threshold is 0.4, and the second partial CSI of 30 bits is transmitted on the resource transmitted by the second part of the CSI.
  • a channel state information CSI transmission method is provided, which will be specifically described below in conjunction with two examples.
  • the base station indicates through the DCI that the PUSCH does not contain data transmission, and only includes transmission of aperiodic CSI.
  • the aperiodic CSI is divided into a first partial CSI and a second partial CSI; wherein the first partial CSI includes 50 bits and the second partial CSI includes 100 bits.
  • the target bit rate used by the first part of the CSI is obtained.
  • Manner 1 The target code rate used by the base station to directly configure the first part of the CSI is 0.15.
  • Manner 2 The base station configures the first part of the CSI to use a set of code rates of ⁇ [0.08, 0.15, 0.25, 0.35, 0.45, 0.60, 0.80] ⁇ , and then indicates, by DCI, that the first part of the CSI uses a target code rate of 0.15.
  • Manner 3 The set of code rate values used by the first part of the CSI is defined as ⁇ [0.08, 0.15, 0.25, 0.35, 0.45, 0.60, 0.80] ⁇ , and the base station indicates, by the high layer signaling, that the first part of the CSI uses the target bit rate.
  • the second value is 0.15.
  • the base station may indicate the modulation order of the first partial CSI and the target code rate used by using the MCS information field in the DCI. For example, a column of target code rate is added to the MCS table defined in the standard as the target bit rate used by the first partial CSI. As shown in Table 1, only the I MCS 3 to 23 in the table indicates the modulation order of the first partial CSI. And target bit rate.
  • the base station may indicate the target code of the first part of the CSI through the MCS information field in the DCI (excluding one or more combinations of using other information fields (eg, HARQ process indication information field, RV indication field, NDI indication field)) Rate and / or modulation order.
  • other information fields eg, HARQ process indication information field, RV indication field, NDI indication field
  • the target code rate of the first partial CSI is indicated using I MCS 0-27 in the table and / Or modulation order, MCS information field in DCI (does not exclude using one or more combinations of other information fields (such as HARQ process indication information field, RV indication field, NDI indication field)) to indicate which MCS in the table is used. index.
  • the base station obtains the modulation order of the first part of the CSI through the MCS information field and the NDI information field and/or the RV information field, and indicates the information in the protocol preset table by using the HARQ process in the downlink control information DCI.
  • the code rate associated with the modulation order of a portion of the CSI is: Table 6.1.4.1-1 of 3GPP protocol 38.213.
  • Table 2 is Table 6.1.4.1-1 of the 3GPP protocol 38.213.
  • the modulation order of the first partial CSI is 2
  • the high three or lower three bits of the 4 bits of the information field are indicated by the HARQ process number to indicate The code rate corresponding to the I MCS 2 to 9 in the table
  • the modulation order of the CSI is 4, the upper three bits or the lower three bits of the 4 bits of the information field are indicated by the HARQ process number to indicate the I MCS in the table.
  • the first partial CSI includes 50 bits, and if the first partial CSI uses QPSK (Quadrature Phase Shift Keyin) modulation, and the target code rate is 0.15, then Then 167 RE resources in the PUSCH can be used to transmit the first partial CSI.
  • the identifier is RE resource for DMRS transmission, identified as RE resources are available for the transmission of the first part of the CSI.
  • RE resources that can be used for the second part of CSI transmission As shown in Figure 2, the identifier is The RE resources can be used for the transmission of the second part of the CSI.
  • the base station indicates through the DCI that the PUSCH does not contain data transmission, and only includes transmission of aperiodic CSI.
  • the aperiodic CSI is divided into a first partial CSI and a second partial CSI; wherein the first partial CSI includes 50 bits and the second partial CSI includes 100 bits.
  • the corresponding target code rate in the MCS table (ie, Table 1) defined in the standard 38.214 is used as the target code rate of the first partial CSI.
  • the base station indicates that the MCS corresponding to the CSI transmission is 0 in the DCI, and the corresponding modulation order is 2, and the target code rate used by the first partial CSI is 120/1024.
  • the first partial CSI contains 50 bits, using QPSK modulation, then
  • the number of REs occupied by the first partial CSI is 214, which is greater than the number 156 of REs available for UCI transmission in the PUSCH
  • the number of RE resources used by the first partial CSI in the current transmission is determined. It is equal to the number of RE resources available for UCI transmission in the PUSCH.
  • the first partial CSI is transmitted only on the current PUSCH, and all the second partial CSIs are discarded.
  • resources available for the first partial CSI transmission on the PUSCH are determined according to the target code rate of the first partial CSI, and the remaining available on the PUSCH is determined.
  • the resource is a resource that can be used for the second part of CSI transmission, so that the CSI information on the PUSCH in the 5G NR system can be correctly transmitted, thereby ensuring the performance of the NR system.
  • an embodiment of the present disclosure further provides a communication device, including: a memory 310, a processor 300, and a computer program stored on the memory 310 and executable on the processor 300;
  • a communication device including: a memory 310, a processor 300, and a computer program stored on the memory 310 and executable on the processor 300;
  • the available resources on the PUSCH other than the resources available for the first partial CSI transmission are determined to be resources available on the PUSCH for the second partial CSI transmission.
  • the communication device in the above embodiment of the present disclosure further includes a transceiver 320, and the transceiver 320 is configured to:
  • the transceiver 320 in the above embodiment of the present disclosure is further configured to:
  • the target code rate of the CSI; the code rate set contains two or more code rates.
  • the specific indication field of the downlink control information in the foregoing embodiment of the present disclosure includes: a modulation and coding mode MCS information field, a redundancy version RV information field, a new data indication NDI information field, and a hybrid automatic repeat request HARQ process.
  • the number indicates a combination of one or more of the information fields.
  • a set of code rates that can be used by the first part of CSI is predefined, and a downlink control information that can trigger the terminal to send the first part of CSI is received:
  • the specific indication field in the downlink control information is: a hybrid automatic repeat request HARQ process number indication information field;
  • the indication information of the HARQ process number indication information field is used to indicate a code rate associated with the modulation order of the first partial CSI in the protocol preset table.
  • the high three-bit information or the low three-bit information of the HARQ process number indication information field is used to indicate 8 code rates associated with a modulation order of 2 in the protocol preset table;
  • the modulation order of the first partial CSI is 4, the high three-bit information or the low three-bit information of the HARQ process number indication information field is used to indicate that the modulation order in the protocol preset table is 4 associated 7 code rates;
  • the modulation order of the first partial CSI is 6
  • all the bit information of the HARQ process number indication information field is used to indicate 11 code rates associated with the modulation order of 6 in the protocol preset table.
  • the processor 300 is further configured to:
  • the processor 300 is further configured to:
  • O CSI-part1 is the number of information bits of the first partial CSI;
  • R Target is the target code rate used by the first partial CSI;
  • Q m is the The modulation order of the first part of the CSI.
  • the processor 300 is further configured to:
  • the number of resource elements RE available for the second partial CSI transmission on the PUSCH is determined according to the number of resource elements RE available on the PUSCH for uplink control information UCI transmission and the number of resource elements RE available on the PUSCH for the first partial CSI transmission.
  • the processor 300 is further configured to:
  • the processor 300 is further configured to:
  • the number of resource units RE available for uplink control information UCI transmission on the PUSCH Calculation formula The number of resource units RE that can be used for uplink control information UCI transmission on the PUSCH The calculation formula is:
  • the processor 300 is further configured to:
  • the resource unit RE available for uplink control information UCI transmission on the PUSCH is determined to be a resource unit RE available for the first partial CSI transmission, and it is determined that there is no resource unit RE available for the second partial CSI transmission on the PUSCH.
  • the transceiver 320 is further configured to: receive downlink control information DCI sent by the base station;
  • the processor is further configured to:
  • the downlink control information DCI is parsed to determine that the PUSCH does not include data transmission, and only includes CSI transmission.
  • the processor 300 is further configured to:
  • the processor 300 is further configured to:
  • Is the code rate threshold of the second part of CSI Is the target bit rate used by the first part of the CSI; Is a code rate offset value of the first partial CSI; Is the code rate offset value of the second partial CSI.
  • the processor 300 is further configured to:
  • the number of bits is the total number of bits of the second partial CSI
  • the second partial CSI is discarded according to a preset rule until the remaining second partial CSI corresponds to the actual The code rate is less than or equal to the code rate threshold of the second partial CSI, determining that the number of bits of the second partial CSI that can be transmitted on the resources available for the second partial CSI transmission is the remaining second partial CSI inclusion The number of bits.
  • resources available for the first partial CSI transmission on the PUSCH are determined according to the target code rate of the first partial CSI, and the remaining available on the PUSCH is determined.
  • the resource is a resource that can be used for the second part of CSI transmission, so that the CSI information on the PUSCH in the 5G NR system can be correctly transmitted, thereby ensuring the performance of the NR system.
  • the communication device provided by the embodiment of the present disclosure is a communication device capable of performing the foregoing channel state information CSI transmission method, and all embodiments of the channel state information CSI transmission method are applicable to the communication device, and both can reach The same or similar benefits.
  • an embodiment of the present disclosure further provides a determining apparatus for a transmission resource of a channel state information CSI, where the CSI includes a first partial CSI and a second partial CSI, and the determining apparatus includes:
  • a first determining module 41 configured to determine, according to a target code rate used by the first partial CSI, a resource that is available for the first partial CSI transmission on the physical uplink shared channel PUSCH;
  • the second determining module 42 is configured to determine, on the PUSCH, that the available resources except the resources available for the first partial CSI transmission are resources available on the PUSCH for the second partial CSI transmission.
  • the determining apparatus further includes:
  • an obtaining module configured to acquire a target code rate used by the first part of the CSI.
  • the acquiring module includes:
  • a first acquiring submodule configured to receive a target bit rate used by the first part of the CSI configured by the base station by using the high layer signaling;
  • a second acquiring submodule configured to receive a code rate set that can be used by the first part of the CSI that is configured by the base station, and receive downlink control information that can trigger the terminal to send the first part of the CSI, according to the specific indication in the downlink control information.
  • the indication information of the domain determines to use one code rate in the set of code rates as a target code rate of the first partial CSI; the code rate set includes two or more code rates; and/or,
  • a third obtaining submodule configured to predefine, in a protocol, a set of code rates that can be used by the first part of CSI; and receive downlink control information that can trigger the terminal to send the first part of CSI, according to a specific indication in the downlink control information
  • the indication information of the domain determines to use one code rate in the set of code rates as a target code rate of the first partial CSI; the code rate set includes two or more code rates; and/or,
  • a fourth obtaining sub-module configured to pre-define a code rate set that can be used by the first part of the CSI in the protocol; receive high-level signaling of the base station, and determine, according to the indication information in the high-layer signaling, use the set in the code rate set One code rate is used as the target code rate of the first partial CSI; the code rate set includes two or more code rates.
  • the specific indication field of the downlink control information includes: a modulation and coding mode MCS information field, a redundancy version RV information field, a new data indication NDI information field, and a hybrid automatic repeat request HARQ.
  • the process number indicates a combination of one or more of the information fields.
  • the first determining module 41 includes:
  • a first determining submodule configured to determine, according to the target code rate used by the first partial CSI, the information bit number of the first partial CSI, and the modulation order of the first partial CSI, resources available for the first partial CSI transmission on the PUSCH The number of unit REs.
  • the first determining submodule includes:
  • a first determining unit configured to determine, according to the first formula, a quantity of resource units RE available for the first partial CSI transmission on the PUSCH; wherein the first formula is:
  • O CSI-part1 is the number of information bits of the first partial CSI;
  • R Target is the target code rate used by the first partial CSI;
  • Q m is the The modulation order of the first part of the CSI.
  • the second determining module includes:
  • a second determining submodule configured to determine, according to the number of resource units RE available for uplink control information UCI transmission on the PUSCH and the number of resource units RE available for the first partial CSI transmission on the PUSCH, to determine that the PUSCH is available for the second partial CSI transmission The number of resource units RE.
  • the second determining submodule includes:
  • a second determining unit configured to determine, according to the second formula, the number of resource units RE available for the second partial CSI transmission on the PUSCH; wherein the second formula is:
  • the number of resource units RE that can be used for uplink control information UCI transmission on the PUSCH is:
  • the determining apparatus further includes:
  • a processing module configured to: if the number of resource units RE available for the first partial CSI transmission on the PUSCH is greater than the number of resource units RE available for uplink control information UCI transmission on the PUSCH, the PUSCH can be used for uplink control information UCI
  • the transmitted resource elements RE are each determined to be resource elements RE available for the first partial CSI transmission, and it is determined that there are no resource elements RE available for the second partial CSI transmission on the PUSCH.
  • the determining apparatus further includes:
  • a receiving module configured to receive downlink control information DCI sent by the base station
  • the parsing module is configured to parse the downlink control information DCI, determine that the PUSCH does not include data transmission, and only includes CSI transmission.
  • the determining apparatus further includes:
  • a threshold acquisition module configured to acquire a code rate threshold of the second part of the CSI
  • a bit determining module configured to determine, according to the code rate threshold value of the second partial CSI, a number of bits of the second partial CSI that can be transmitted on the PUSCH for the second partial CSI transmission.
  • the threshold acquiring module includes:
  • a threshold obtaining submodule configured to determine a code rate threshold of the second partial CSI according to the third formula; wherein the third formula is:
  • Is the code rate threshold of the second part of CSI Is the target bit rate used by the first part of the CSI; Is a code rate offset value of the first partial CSI; Is the code rate offset value of the second partial CSI.
  • the bit determining module includes:
  • a first bit determining submodule configured to determine, when the actual code rate corresponding to the second partial CSI is less than or equal to a code rate threshold of the second partial CSI, determining resources available for the second partial CSI transmission
  • the number of bits of the second partial CSI that can be transmitted is the total number of bits of the second partial CSI
  • a second bit determining submodule configured to discard the second part of the CSI according to a preset rule, if the actual code rate corresponding to the second part of the CSI is greater than the code rate threshold of the second part of the CSI, And determining, by the remaining second partial CSI, an actual code rate that is less than or equal to a code rate threshold of the second partial CSI, and determining a bit of the second partial CSI that can be transmitted on the resource that is available for the second partial CSI transmission.
  • the number is the number of bits contained in the remaining second partial CSI.
  • resources available for the first partial CSI transmission on the PUSCH are determined according to the target code rate of the first partial CSI, and the remaining available on the PUSCH is determined.
  • the resource is a resource that can be used for the second part of CSI transmission, so that the CSI information on the PUSCH in the 5G NR system can be correctly transmitted, thereby ensuring the performance of the NR system.
  • the determining device of the transmission resource of the channel state information CSI provided by the embodiment of the present disclosure is a determining device capable of performing the determining method of the transmission resource of the channel state information CSI, and determining the transmission resource of the channel state information CSI. All of the embodiments of the method are applicable to the determining device and are capable of achieving the same or similar benefits.
  • Embodiments of the present disclosure also provide a computer readable storage medium storing a computer program on a computer readable storage medium, when executed by a processor, implementing each of the channel state information CSI transmission method embodiments as described above Process, and can achieve the same technical effect, in order to avoid duplication, no longer repeat here.
  • the computer readable storage medium such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
  • the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better.
  • Implementation Based on such understanding, the technical solution of the present disclosure, which is essential or contributes to the related art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, CD-ROM).
  • the instructions include a number of instructions for causing a terminal (which may be a cell phone, computer, server, air conditioner, or network device, etc.) to perform the methods described in various embodiments of the present disclosure.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de transmission d'informations d'état de canal (CSI), un dispositif de communication et un appareil. Le procédé de transmission consiste : en fonction d'un débit de code cible utilisé par une première partie de CSI, à déterminer une ressource, sur un canal physique partagé sur la liaison montante (PUSCH), pouvant être utilisée pour la transmission de la première partie de CSI ; et à déterminer que des ressources disponibles sur le PUSCH, espacées de la ressource pouvant être utilisée pour la transmission de la première partie de CSI, constituent des ressources sur le PUSCH pouvant être utilisées pour la transmission d'une seconde partie de CSI.
PCT/CN2018/117133 2017-12-29 2018-11-23 Procédé de transmission d'informations d'état de canal, dispositif de communication et appareil Ceased WO2019128576A1 (fr)

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KR1020207020329A KR20200096630A (ko) 2017-12-29 2018-11-23 채널 상태 정보 전송 방법, 통신 기기 및 장치
EP18896050.4A EP3716518B1 (fr) 2017-12-29 2018-11-23 Procédé de transmission d'informations d'état de canal, dispositif de communication et appareil
JP2020535237A JP6999818B2 (ja) 2017-12-29 2018-11-23 チャネル状態情報伝送方法、通信機器および装置
US16/772,077 US20200366352A1 (en) 2017-12-29 2018-11-23 Channel state information transmission method, communication device, and apparatus

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CN201711473505 2017-12-29
CN201711473505.X 2017-12-29
CN201810032021.X 2018-01-12
CN201810032021 2018-01-12
CN201810292329.8A CN109995493B (zh) 2017-12-29 2018-03-30 信道状态信息的传输资源的确定方法、通信设备及装置
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