[go: up one dir, main page]

WO2019157670A1 - Procédé d'indication d'informations et dispositif associé - Google Patents

Procédé d'indication d'informations et dispositif associé Download PDF

Info

Publication number
WO2019157670A1
WO2019157670A1 PCT/CN2018/076762 CN2018076762W WO2019157670A1 WO 2019157670 A1 WO2019157670 A1 WO 2019157670A1 CN 2018076762 W CN2018076762 W CN 2018076762W WO 2019157670 A1 WO2019157670 A1 WO 2019157670A1
Authority
WO
WIPO (PCT)
Prior art keywords
pusch
bit
subcarriers
frequency resource
resource
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2018/076762
Other languages
English (en)
Chinese (zh)
Inventor
南方
余政
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
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.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201880086841.5A priority Critical patent/CN111602463B/zh
Priority to PCT/CN2018/076762 priority patent/WO2019157670A1/fr
Publication of WO2019157670A1 publication Critical patent/WO2019157670A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02—Terminal devices

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an information indicating method and related devices.
  • Machine type communication refers to the acquisition of information about the physical world by deploying various devices with certain sensing, computing, execution, and communication capabilities, and realizes information transmission, coordination, and processing through the network.
  • MTC Machine type communication
  • LTE long term evolution
  • the resources of the LTE system are divided into subcarriers in the frequency domain, divided into subframes in time, and one subframe includes two slots.
  • one physical resource block (PRB) contains 12 subcarriers in frequency, and is 1 slot in time.
  • the user equipment (UE) capable of supporting the MTC service is a bandwidth-reduced low-complexity UE (BL UE) or a coverage enhancement UE (CE UE). ). Its maximum supported transmit and receive bandwidth is 1.4MHz and includes a narrowband. A narrow band contains a frequency width of six consecutive PRBs in frequency.
  • LTE Rel-13 provides two coverage enhancement modes for coverage enhanced UEs, namely, coverage enhancement mode A (CE mode A) for smaller coverage enhancement levels and coverage enhancement mode B for larger coverage enhancement levels ( CE mode B).
  • CE mode A coverage enhancement mode A
  • CE mode B coverage enhancement mode B
  • the bandwidth that the UE performing the MTC service can support for transmitting the service data is expanded.
  • CE mode A the physical uplink shared channel (PUSCH) bandwidth supported by the UE is extended to 5 MHz.
  • the PUSCH is used to carry uplink data of the UE.
  • the LTE system allocates frequency domain resources used by the PUSCH through downlink control information (DCI).
  • DCI is sent by the base station to the UE.
  • the DCI is carried by a physical downlink control channel (MPDCCH) of a device type communication.
  • MPDCCH physical downlink control channel
  • the minimum unit for resource allocation for PUSCH is 1 resource block. In order to improve the spectrum efficiency of the PUSCH, it is one of the effective technical means to allocate resources of less than 12 subcarriers for the PUSCH.
  • the DCI carried by the MPDCCH In order to enable the DCI carried by the MPDCCH to indicate resource allocation of less than 12 subcarriers, it is necessary to add a large number of bits in the existing DCI. For example, it is necessary to add a bit for indicating a subcarrier allocated in the PRB in the existing DCI, for example, adding 3 bits. In addition, bits for indicating other information need to be added to the DCI. Therefore, the bit overhead of DCI is relatively large.
  • the embodiment of the invention discloses an information indication method and related device, which is beneficial for reducing the bit overhead of DCI when the DCI supports resource allocation indicating less than 12 subcarriers.
  • the embodiment of the present application provides an information indication method, where the method includes: determining a frequency resource of a physical uplink shared channel PUSCH that the downlink control information DCI needs to indicate; and a number of physical resource blocks PRB included in the frequency resource of the PUSCH When the value is greater than or equal to 1, it is determined that the bit used to indicate the hybrid automatic repeat request HARQ process number in the DCI is 3 bits, and the bit used to indicate the redundancy version RV is 2 bits, which is used to indicate the transmit power control TPC command of the PUSCH.
  • the bit is 2 bits; when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, it is determined that the number of bits used to indicate the HARQ process number in the DCI is less than 3, and/or the bit used to indicate the RV in the DCI is 1 bit, And/or the bit of the TPC command for indicating the PUSCH in the DCI is 0 bits; the DCI is determined; the DCI is transmitted to the terminal device.
  • the number of bits used to indicate the HARQ process number is greater than or equal to 1 when the number of PRBs included in the frequency resource of the PUSCH is greater than or equal to 1 to indicate the HARQ process number.
  • the number of bits is small. Since the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the time required for one transmission of one transport block of the uplink data is greater than 1 ms, so the round trip delay and data processing according to data transmission between the communication device and the terminal device are performed.
  • the DCI is used to indicate the HARQ process at this time. If the bit of the number is still 3 bits, there is a bit overhead that is not needed.
  • the number of bits used to indicate the RV is greater than or equal to 1 when the number of PRBs included in the frequency resource of the PUSCH is greater than or equal to 1.
  • the number is one less. Since the MTC service usually has a small data packet, the reception performance when the uplink data transmission adopts two RVs and the reception performance when the four RVs are used are not obvious. Therefore, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, In order to make the number of bits of the DCI not increase a lot, the number of bits used to indicate the RV can be reduced.
  • the bit for indicating the TPC command of the PUSCH is not included in the DCI.
  • the TPC command of the PUSCH indicated by the DCI may not be applicable to the transport block of the next uplink data carried by the PUSCH. Therefore, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, The number of bits of the DCI is not greatly increased, and the transmission power of the PUSCH can be dynamically adjusted without DCI.
  • the communication device can allocate frequency resources of two PUSCHs, one is to allocate a frequency resource of a PUSCH greater than or equal to one resource block, and the other is to allocate less than 12 subcarriers. Frequency resource of PUSCH.
  • the communication device can flexibly select one of the frequency resources for allocating the two PUSCHs according to requirements.
  • the terminal device can concentrate the transmission power on a smaller bandwidth, so that the spectrum efficiency of the PUSCH is improved.
  • determining that the bit used to indicate the HARQ process ID in the DCI is 1 bit.
  • the DCI further includes a resource bit that distinguishes the resource allocation with the subcarrier as the minimum unit and the resource allocation with the resource block as the minimum unit.
  • the value of the flag bit is the first value
  • the frequency resource of the PUSCH is included.
  • the number of physical resource blocks PRB is greater than or equal to 1; when the value of the flag bit is the second value, the number of subcarriers included in the frequency resource of the PUSCH is less than 12.
  • the design of the DCI differs when the frequency resources of the PUSCH are allocated with the subcarrier as the minimum unit and the resource block as the minimum unit. Therefore, by adding a flag bit for distinguishing a resource allocation with a subcarrier as a minimum unit and a resource allocation with a resource block as a minimum unit in the DCI, the terminal device can determine that the PUSCH with the number of PRBs greater than or equal to 1 is allocated.
  • the frequency resource is also the frequency resource of the PUSCH whose number of allocated subcarriers is less than 12. Thereby, the terminal device can accurately parse the information indicated by the DCI.
  • the DCI further includes a bit for subcarrier allocation, where the bit used for subcarrier allocation is Bits, among them.
  • the bits are used to indicate the narrowband in which the frequency resource of the PUSCH is located, and the 6 bits are used to indicate the PRB in which the frequency resource of the PUSCH is located in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB,
  • the frequency resources included in the PUSCH include one of 3 subcarriers and 6 subcarriers.
  • the DCI can accurately indicate the frequency resource of the PUSCH.
  • the DCI further includes a bit for subcarrier allocation, where the bit used for subcarrier allocation is a bit, which is used to indicate a PRB in which a frequency resource of a PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of a PUSCH in the PRB,
  • the frequency resources included in the PUSCH include one of 3 subcarriers and 6 subcarriers.
  • the DCI can accurately indicate the frequency resource of the PUSCH.
  • the bit bits jointly indicate the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB, which is advantageous for saving bits of the DCI.
  • the frequency resource of the indicated PUSCH may be in a narrow band or outside the narrow band, which increases the flexibility of resource allocation.
  • the DCI further includes a bit for subcarrier allocation, where the bit used for subcarrier allocation is Bits, among them.
  • the bits are used to indicate the narrowband in which the frequency resource of the PUSCH is located, and the 6 bits are used to indicate the PRB in which the frequency resource of the PUSCH is located in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB,
  • the frequency resources included in the PUSCH include one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers.
  • the DCI can accurately indicate the frequency resource of the PUSCH.
  • the sub-carrier included in the frequency resource indicating the PUSCH is one of three subcarriers, six subcarriers, and two consecutive subcarriers of the three subcarriers, so that the terminal device does not need to be used according to the information for indicating the modulation mode.
  • the bit determines the modulation mode, and then determines whether to transmit uplink data in two consecutive subcarriers of the three subcarriers according to the modulation mode, or to transmit uplink data in three subcarriers.
  • the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.
  • the 6 bits combined to indicate the PRB in which the frequency resource of the PUSCH in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB are beneficial to save the bits of the DCI.
  • the DCI further includes a bit for subcarrier allocation, where the bit used for subcarrier allocation is a bit, which is used to indicate a PRB in which a frequency resource of a PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of a PUSCH in the PRB,
  • the frequency resources included in the PUSCH include one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers.
  • the DCI can accurately indicate the frequency resource of the PUSCH.
  • the sub-carrier included in the frequency resource indicating the PUSCH is one of three subcarriers, six subcarriers, and two consecutive subcarriers of the three subcarriers, so that the terminal device does not need to be used according to the information for indicating the modulation mode.
  • the bit determines the modulation mode, and then determines whether to transmit uplink data in two consecutive subcarriers of the three subcarriers according to the modulation mode, or to transmit uplink data in three subcarriers.
  • the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.
  • the bit bits jointly indicate the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB, which is advantageous for saving bits of the DCI.
  • the frequency resource of the indicated PUSCH may be in a narrow band or outside the narrow band, which increases the flexibility of resource allocation.
  • the DCI further includes a bit for indicating the number of resource units (RUs).
  • the bits for subcarrier allocation and the bits for indicating the number of RUs are bits of different domains, or bits for subcarrier allocation and bits for indicating the number of RUs are bits of different fields. That is to say, the subcarrier allocation and the number of RUs are indicated by bits at different positions.
  • the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.
  • the DCI further includes a bit for indicating a scheduling delay.
  • the scheduling delay is the delay between the physical downlink control channel carrying the DCI and the PUSCH.
  • the physical downlink control channel may be a physical downlink control channel (MPDCCH) of a device type communication.
  • the bit used to indicate the scheduling delay is 2 bits.
  • the scheduling delay can be indicated by the DCI, so that the terminal device can perform related operations according to the scheduling delay.
  • the DCI further includes a first field, where the first field is used to indicate the number of resource unit RUs and the subcarriers included in the frequency resource of the PUSCH, and the number of the RUs and the subcarriers are The same bit indication in the bits to which the first field is mapped.
  • the first field is mapped to the bit Bits, among them,
  • the bits are used to indicate the narrowband in which the frequency resource of the PUSCH is located, the 7 bits are used to indicate the PRB in which the frequency resource of the PUSCH is located in the narrowband, the number of subcarriers included in the frequency resource of the PUSCH in the PRB, and the number of RUs.
  • the frequency resources included in the PUSCH include one of three subcarriers and six subcarriers, and the number of RUs is one of three types of RUs.
  • the DCI can accurately indicate the number of RUs and the frequency resources of the PUSCH. And using 7 bits to jointly indicate the PRB in which the frequency resource of the PUSCH in the narrowband is located and the number of subcarriers and the number of RUs included in the frequency resource of the PUSCH in the PRB are advantageous to save the bits of the DCI.
  • the first field is mapped to the bit a bit indicating the PRB in which the frequency resource of the PUSCH is located in the system bandwidth, the number of subcarriers included in the frequency resource of the PUSCH in the PRB, and the number of RUs,
  • the frequency resources included in the PUSCH include one of three subcarriers and six subcarriers
  • the number of RUs is one of three types of RUs.
  • the DCI can accurately indicate the number of RUs and the frequency resources of the PUSCH.
  • the bits are used to jointly indicate the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the number of subcarriers and the number of RUs included in the frequency resource of the PUSCH in the PRB, which is advantageous for saving bits of DCI.
  • the frequency resource of the indicated PUSCH may be in a narrow band or outside the narrow band, which increases the flexibility of resource allocation.
  • the RRC signaling is used to indicate that the frequency resource of the PUSCH indicated by the DCI is the first type of resource or the second type of resource;
  • the first type of resource includes a resource block having a frequency range of 1.4 MHz and a resource block having a frequency range of 5 MHz;
  • the second type of resource includes a resource block having a frequency range of 1.4 MHz and a subcarrier having a quantity less than 12 .
  • the DCI design differs when the frequency resource of the PUSCH indicated by the DCI is the first type of resource and the frequency resource of the PUSCH indicated by the DCI is the second type of resource. Therefore, by implementing the implementation manner, the RRC signaling is sent to the terminal device before the DCI is sent, so that the terminal device determines that the frequency resource of the PUSCH indicated by the DCI is the first type of resource or the second type of resource, so that the terminal device can accurately Parse out the information indicated by the DCI. Since DCI does not support resource blocks indicating a frequency range of 1.4 MHz, resource blocks with a frequency range of 5 MHz, and subcarriers with a number less than 12, it is advantageous to save DCI bits.
  • the DCI further includes a bit for resource allocation, where the bit for resource allocation includes a narrowband indication bit and is used in a narrowband a bit allocated by the resource, wherein the narrowband indication bit includes The bits are used to indicate the narrow band where the frequency resource of the PUSCH is located.
  • the value of the bit resource allocation in the narrowband is the fourth value, the PRB indicating the frequency resource of the PUSCH in the narrowband where the frequency resource of the PUSCH is located, and the subcarrier included in the frequency resource of the PUSCH in the PRB, the frequency resource of the PUSCH
  • the number of subcarriers included is less than 12.
  • the DCI can accurately indicate the frequency resource of the PUSCH. And indicating, by using different values of the same bit in the DCI, the allocated resource block or subcarrier, and jointly indicating the PRB where the frequency resource of the PUSCH in the narrowband where the frequency resource of the PUSCH is located and the frequency of the PUSCH in the PRB
  • the subcarriers included in the resource are beneficial for saving DCI bits.
  • the frequency resource included in the PUSCH is one of three subcarriers and six subcarriers, and the bit used for resource allocation in the narrowband is 6 bits; or the frequency resource of the PUSCH includes three subcarriers.
  • One of the two subcarriers, six subcarriers, and two consecutive subcarriers of the three subcarriers, and the number of bits used for resource allocation in the narrowband is 7 bits.
  • the frequency resource included in the PUSCH is one of 3 subcarriers and 6 subcarriers
  • 6 bits are used to indicate intra-narrowband resource allocation, which is advantageous for saving DCI bits.
  • the frequency resource included in the PUSCH includes one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers
  • 7 bits are used to indicate resource allocation in the narrowband, which is advantageous for saving DCI.
  • the sub-carrier included in the frequency resource indicating the PUSCH is one of three subcarriers, six subcarriers, and two consecutive subcarriers of the three subcarriers, so that the terminal device does not need to be used according to the information for indicating the modulation mode.
  • the bit determines the modulation mode, and then determines whether to transmit uplink data in two consecutive subcarriers of the three subcarriers according to the modulation mode, or to transmit uplink data in three subcarriers.
  • the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.
  • the DCI further includes a bit for resource allocation, where the value of the bit used for resource allocation is a fifth value, a narrowband in which the frequency resource of the PUSCH is located, and a resource block included in the frequency resource of the PUSCH in the narrowband; when the value of the bit used for resource allocation is the sixth value, indicating the PRB where the frequency resource of the PUSCH is located in the system bandwidth and The frequency component of the PUSCH in the PRB includes subcarriers, and the number of subcarriers is less than 12.
  • the DCI can accurately indicate the frequency resource of the PUSCH. And indicating the allocated resource block or subcarrier by different values of the same bit in the DCI, and jointly indicating the PRB where the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB, which is beneficial to Save DCI bits.
  • the sub-carriers included in the frequency resource of the indicated PUSCH may be in a narrow band or may be outside the narrow band, which increases the flexibility of resource allocation.
  • the bits used for resource allocation include Bits, For the number of PRBs included in the system bandwidth, the frequency resources included in the PUSCH include one of 3 subcarriers and 6 subcarriers, and S is equal to 6; or the frequency resources of the PUSCH include 3 subcarriers. One of two consecutive subcarriers of the carrier, 6 subcarriers, and 3 subcarriers, S is equal to 10.
  • the frequency component included in the frequency resource of the PUSCH is one of three subcarriers and six subcarriers
  • the bits are used for resource allocation, which helps to save DCI bits.
  • the frequency resource included in the PUSCH includes three subcarriers, six subcarriers, and one of two consecutive subcarriers of three subcarriers.
  • the bits are used for resource allocation, which helps to save DCI bits.
  • the subcarrier included in the frequency resource indicating the PUSCH is one of 3 subcarriers, 6 subcarriers, and 2 consecutive subcarriers of the 3 subcarriers, so that the terminal device does not need to be according to the information for indicating the modulation mode.
  • the bit determines the modulation mode, and then determines whether the two consecutive subcarriers of the three subcarriers transmit uplink data or the uplink data of the three subcarriers according to the modulation scheme.
  • the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.
  • the frequency component included in the frequency resource of the PUSCH is one of 3 subcarriers and 6 subcarriers; when the frequency resource of the PUSCH includes 3 subcarriers.
  • the method further includes: when the modulation mode indicated by the DCI is ⁇ /2 binary phase shift keying BPSK, the two consecutive subcarriers of the three subcarriers receive the PUSCH; when the modulation mode indicated by the DCI is the quadrature phase shift key When QPSK is controlled, the PUSCH is received on 3 subcarriers.
  • a bit for indicating the number of RUs is further included in the DCI.
  • the bits used for resource allocation and the bits indicating the number of RUs are bits of different domains, or bits for resource allocation and bits for indicating the number of RUs are bits of different fields. That is, the resource allocation and the number of RUs are indicated by bits at different locations.
  • the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.
  • a bit for indicating a scheduling delay is further included in the DCI.
  • the scheduling delay is the delay between the physical downlink control channel carrying the DCI and the PUSCH.
  • the physical downlink control channel may be an MPDCCH.
  • the bit used to indicate the scheduling delay is 2 bits.
  • the number of bits of the DCI determined by the communications device is the same as the number of bits of the second DCI, or the number of bits of the DCI determined by the communications device is one more than the number of bits of the second DCI.
  • the second DCI is used to indicate the frequency resource of the PUSCH in the coverage enhancement mode A, and only supports the resource block indicating the frequency range within 1.4 MHz and the resource block whose frequency range is within 5 MHz; or the communication device determines
  • the DCI is used to cover enhanced mode A or the format is 6-0A.
  • whether the two consecutive subcarriers of the three subcarriers are the first two subcarriers or the last two subcarriers may be fixed, determined according to the cell ID, or notified by higher layer signaling.
  • the embodiment of the present application provides an information indication method, where the method includes: receiving downlink control information DCI; determining a frequency resource of a physical uplink shared channel PUSCH indicated by the DCI; and a physical resource block included in a frequency resource of the PUSCH
  • the number of PRBs is greater than or equal to 1
  • it is determined that the bit used to indicate the hybrid automatic repeat request HARQ process number in the DCI is 3 bits
  • the bit indicating the redundancy version RV is 2 bits, which is used to indicate the transmit power of the PUSCH.
  • the bit that controls the TPC command is 2 bits; when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, it is determined that the number of bits used to indicate the HARQ process number in the DCI is less than 3, and/or the bit used to indicate the RV in the DCI.
  • the bit of 1 bit, and/or the TPC command for indicating the PUSCH in the DCI is 0 bits.
  • determining that the bit used to indicate the HARQ process ID in the DCI is 1 bit.
  • the DCI further includes a resource bit that distinguishes the resource allocation with the subcarrier as the minimum unit and the resource allocation with the resource block as the minimum unit.
  • a resource bit that distinguishes the resource allocation with the subcarrier as the minimum unit and the resource allocation with the resource block as the minimum unit.
  • the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is Bits, among them,
  • the bits are used to indicate the narrowband in which the frequency resource of the PUSCH is located, and the 6 bits are used to indicate the PRB in which the frequency resource of the PUSCH is located in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB,
  • the frequency resources included in the PUSCH are one of three subcarriers and six subcarriers
  • determining the frequency resource of the physical uplink shared channel PUSCH indicated by the DCI includes: determining The narrowband in which the frequency resource of the PUSCH indicated by the bit allocated by the subcarrier is located, the PRB in which the frequency resource of the PUSCH is located in the narrowband, and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the frequency resource included in the frequency resource of the PUSCH is one of three subcarriers and six subcarriers
  • a PRB for indicating a frequency resource of a PUSCH in a narrowband is used in a bit for subcarrier allocation.
  • the 6-bit decimal number of the subcarrier included in the frequency resource of the PUSCH in the PRB is X.
  • the terminal device determines, according to the value of the 6 bits, the PRB in which the frequency resource of the PUSCH in the narrowband is located, and the subcarrier included in the frequency resource of the PUSCH in the PRB, which may be in other manners. limited.
  • the terminal device can accurately determine the PRB in which the frequency resource of the PUSCH in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is a bit, which is used to indicate a PRB in which a frequency resource of a PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of a PUSCH in the PRB,
  • the frequency resources included in the PUSCH are one of three subcarriers and six subcarriers
  • determining the frequency resource of the physical uplink shared channel PUSCH indicated by the DCI includes: determining The PRB in which the frequency resource of the PUSCH is located in the system bandwidth indicated by the bit allocated by the subcarrier and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the bits used for subcarrier allocation are Bits, and the decimal number of the bits used for subcarrier allocation is X.
  • the terminal device determines, according to the value of the bit allocated for the subcarrier, that the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB may have other manners.
  • the embodiment of the present application is not limited.
  • the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is Bits, of which The bits are used to indicate the narrowband in which the frequency resource of the PUSCH is located, and the 6 bits are used to indicate the PRB in which the frequency resource of the PUSCH is located in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB,
  • the frequency resources included in the PUSCH include three subcarriers, six subcarriers, and one of two consecutive subcarriers of the three subcarriers, and the DCI indication is determined.
  • the frequency resource of the physical uplink shared channel PUSCH includes: determining a narrowband where the frequency resource of the PUSCH indicated by the bit used for the subcarrier allocation is located, a PRB where the frequency resource of the PUSCH is located in the narrowband, and a frequency resource of the PUSCH in the PRB, including Subcarriers.
  • the bit for subcarrier allocation only supports one of indicating that 3 subcarriers are allocated in the PRB, 6 subcarriers are allocated in the PRB, and 2 consecutive subcarriers are allocated in the PRB.
  • the number of decimal digits of the 6 bits of the subcarrier included in the PRB indicating the frequency resource of the PUSCH in the narrowband and the frequency resource of the PUSCH in the PRB is X.
  • the terminal device determines that the PRB index of the PRB in which the frequency resource of the PUSCH indicated by the 6 bits is in the narrowband is
  • the terminal device may determine, according to the value of the 6 bits, the PRB in which the frequency resource of the PUSCH in the narrowband is located, and the subcarrier included in the frequency resource of the PUSCH in the PRB. Make a limit.
  • the terminal device can accurately determine the PRB in which the frequency resource of the PUSCH in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is a bit, which is used to indicate a PRB in which a frequency resource of a PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of a PUSCH in the PRB,
  • the frequency resources included in the PUSCH include three subcarriers, six subcarriers, and one of two consecutive subcarriers of the three subcarriers, and the DCI indication is determined.
  • the frequency resource of the physical uplink shared channel PUSCH includes: a PRB in which a frequency resource of a PUSCH in a system bandwidth indicated by a bit for subcarrier allocation is determined, and a subcarrier included in a frequency resource of a PUSCH in the PRB.
  • the bits used for subcarrier allocation are Bits, and the decimal number of the bits used for subcarrier allocation is X.
  • the terminal device determines, according to the value of the bit used for the subcarrier allocation, that the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB may have other manners.
  • the application examples are not limited.
  • the terminal device can accurately determine the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the DCI further includes a bit for indicating the number of resource units (RUs).
  • the terminal device After receiving the DCI, the terminal device also determines the number of RUs according to the bits used to indicate the number of RUs.
  • the bits for subcarrier allocation and the bits for indicating the number of RUs are bits of different domains, or bits for subcarrier allocation and bits for indicating the number of RUs are bits of different fields. That is to say, the subcarrier allocation and the number of RUs are indicated by bits at different positions.
  • the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.
  • the DCI further includes a bit for indicating a scheduling delay.
  • the terminal device determines the scheduling delay according to the bit used to indicate the scheduling delay.
  • the scheduling delay is the delay between the physical downlink control channel carrying the DCI and the PUSCH.
  • the physical downlink control channel may be a physical downlink control channel (MPDCCH) of a device type communication.
  • the bit used to indicate the scheduling delay is 2 bits.
  • the DCI further includes a first field, where the first field is used to indicate the number of resource unit RUs and the subcarriers included in the frequency resources of the PUSCH, and the number of the RUs and the subcarriers are The same bit in the bit to which the field is mapped indicates that determining the frequency resource of the physical uplink shared channel PUSCH indicated by the DCI includes: determining a subcarrier included in a frequency resource of the PUSCH indicated by the first field; the terminal device may further determine the first field The number of RUs indicated.
  • the first field is mapped to the bit Bits, among them,
  • the bits are used to indicate the narrowband in which the frequency resource of the PUSCH is located, 7 bits are used to indicate the PRB in which the frequency resource of the PUSCH is located in the narrowband, the number of subcarriers included in the frequency resource of the PUSCH in the PRB, and the number of RUs.
  • the frequency resources included in the PUSCH include one of three subcarriers and six subcarriers, and the number of RUs is one of three types of RUs, and the first field is determined.
  • the subcarriers included in the frequency resource of the indicated PUSCH include: determining The narrowband in which the frequency resource of the PUSCH indicated by the bit is located; the PRB in which the frequency resource of the PUSCH in the narrowband indicated by the 7 bits is located, and the subcarrier included in the frequency resource of the PUSCH in the PRB;
  • the number of RUs includes: determining the number of RUs indicated by 7 bits.
  • the PRB indicating the frequency resource of the PUSCH in the narrowband, the subcarrier included in the frequency resource of the PUSCH in the PRB, and the decimal number of 7 bits of the number of RUs are X.
  • the terminal device determines that the PRB index of the PRB where the frequency resource of the PUSCH indicated by the 7 bits is located in the narrowband is
  • the terminal device determines the number of RUs indicated by the 7 bits
  • the terminal device determines, according to the value of the 7 bits, the PRB in which the frequency resource of the PUSCH in the narrowband is located, the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of RUs, and may also have other manners.
  • the application examples are not limited.
  • the terminal can accurately determine the PRB in which the frequency resource of the PUSCH in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of RUs.
  • the first field is mapped to the bit a bit indicating the PRB in which the frequency resource of the PUSCH is located in the system bandwidth, the number of subcarriers included in the frequency resource of the PUSCH in the PRB, and the number of RUs,
  • the frequency resources included in the PUSCH include one of three subcarriers and six subcarriers
  • the number of RUs is one of three types of RUs
  • the physical indicated by the DCI is determined.
  • the frequency resource of the uplink shared channel PUSCH includes: a PRB in which the frequency resource of the PUSCH in the system bandwidth indicated by the bit to which the first field is mapped, and a subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the first field is mapped to the bit The number of bits, whose decimal number corresponds to X.
  • the terminal device determines that the PRB index of the PRB where the frequency resource of the PUSCH indicated by the first field is located in the system bandwidth is The terminal device determines a parameter of the subcarrier included in the frequency resource indicating the PUSCH in the PRB indicated by the first field The terminal device determines that the number of RUs indicated by the first field is X mod 3+1.
  • the terminal device determines, according to the value of the bit of the first field, the PRB in which the frequency resource of the PUSCH is located in the system bandwidth, the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of RUs may have other
  • the embodiment of the present application is not limited.
  • the terminal can accurately determine the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of RUs.
  • receiving radio resource control RRC signaling where the RRC signaling is used to indicate that the frequency resource of the PUSCH indicated by the DCI is a first type of resource or a second type of resource;
  • One type of resource includes a resource block having a frequency range of 1.4 MHz and a resource block having a frequency range of 5 MHz;
  • the second type of resource includes a resource block having a frequency range of 1.4 MHz and a subcarrier having a number less than 12.
  • the DCI further includes a bit for resource allocation, where the bit for resource allocation includes a narrowband indication bit and is used in the narrowband a bit allocated by a resource, wherein the narrowband indication bit includes The bits are used to indicate the narrow band where the frequency resource of the PUSCH is located.
  • determining the frequency resource of the physical uplink shared channel PUSCH indicated by the DCI includes: determining a narrowband where the frequency resource of the PUSCH indicated by the narrowband indication bit is located; and using the bit for resource allocation in the narrowband
  • the value is the third value
  • the resource block included in the frequency resource of the PUSCH in the narrowband where the frequency resource of the PUSCH is located indicated by the third value is determined; when the value of the bit used for resource allocation in the narrowband is the fourth value, Determining, by the fourth value, the PRB in which the frequency resource of the PUSCH in the narrowband where the frequency resource of the PUSCH is located and the subcarrier included in the frequency resource of the PUSCH in the PRB, the number of subcarriers is less than 12.
  • the frequency resource included in the PUSCH is one of three subcarriers and six subcarriers, and the bit used for resource allocation in the narrowband is 6 bits; or the frequency resource of the PUSCH includes three subcarriers.
  • One of the two subcarriers, six subcarriers, and two consecutive subcarriers of the three subcarriers, and the number of bits used for resource allocation in the narrowband is 7 bits.
  • the fourth value represents a decimal number less than 6S. If the decimal number of the bit representation in the narrowband resource allocation in the DCI is Y, that is, Y ⁇ 6S, the terminal device determines the PUSCH in the narrowband where the frequency resource of the PUSCH is indicated by the bit used for resource allocation in the narrowband.
  • the PRB in which the frequency resource is located and the subcarrier included in the frequency resource of the PUSCH in the PRB, the number of the subcarriers is less than 12.
  • the narrowband of the frequency resource of the PUSCH indicated by the bit for the intra-narrowband resource allocation is the narrowband indicated by the narrowband indication bit, and the PRB index of the PRB of the PUSCH indicated by the bit for the intra-narrowband resource allocation is in the narrowband.
  • the third value represents a decimal number greater than or equal to 6S. That is, when Y is greater than or equal to 6S, the terminal device determines the resource block included in the frequency resource of the PUSCH in the narrowband where the frequency resource of the PUSCH is indicated by the bit used for resource allocation in the narrowband.
  • the resource indication value (RIV) of the resource block indicated by the bit resource indicating the resource allocation of the narrow band indicates the Y-6S.
  • the RIV value corresponds to the starting resource block RB START and the number of consecutive resource blocks L CRBs included in the frequency resource of the PUSCH. RIV is defined in the same way as the prior art, ie if then otherwise among them Fixed at 6.
  • the sub-carrier included in the frequency resource of the PUSCH is one of three subcarriers and six subcarriers, and S is equal to 6.
  • the frequency resource included in the PUSCH is one of three subcarriers, six subcarriers, and one of two consecutive subcarriers of three subcarriers, and S is equal to 10.
  • the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • the fourth value represents a decimal number greater than or equal to 21. That is, when Y is greater than or equal to 21, the terminal device determines that the PRB in which the frequency resource of the PUSCH in the narrowband where the frequency resource of the PUSCH is located indicated by the bit used for resource allocation in the narrowband and the frequency resource of the PUSCH in the PRB are included. Subcarrier, the number of subcarriers is less than 12.
  • the narrowband of the frequency resource of the PUSCH indicated by the bit for the intra-narrowband resource allocation is the narrowband indicated by the narrowband indication bit, and the PRB index of the PRB of the PUSCH indicated by the bit for the intra-narrowband resource allocation is in the narrowband.
  • the sub-carrier included in the frequency resource of the PUSCH is one of three subcarriers and six subcarriers, and S is equal to 6.
  • the frequency resource included in the PUSCH is one of three subcarriers, six subcarriers, and one of two consecutive subcarriers of three subcarriers, and S is equal to 10.
  • the determining, by the terminal device, the allocated resources according to the bits used for the resource allocation in the narrowband may also be in other manners, which is not limited in the embodiment of the present application.
  • the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • the RRC signaling indicates that the frequency resource of the PUSCH indicated by the DCI is a resource of the second type
  • the DCI further includes a bit for resource allocation
  • determining the frequency resource of the physical uplink shared channel PUSCH indicated by the DCI includes: used for resource allocation.
  • the value of the bit is the fifth value
  • the narrow band in which the frequency resource of the PUSCH indicated by the fifth value is located and the resource block included in the frequency resource of the PUSCH in the narrow band are determined;
  • the value of the bit used for resource allocation is When the value is six values, the PRB in which the frequency resource of the PUSCH in the system bandwidth is indicated by the sixth value and the subcarrier included in the frequency resource of the PUSCH in the PRB are determined, and the number of subcarriers is less than 12.
  • the bits used for resource allocation include Bits, For the number of PRBs included in the system bandwidth, the frequency resources included in the PUSCH include one of 3 subcarriers and 6 subcarriers, and S is equal to 6; or the frequency resources of the PUSCH include 3 subcarriers. One of two consecutive subcarriers of the carrier, 6 subcarriers, and 3 subcarriers, S is equal to 10.
  • the frequency component included in the frequency resource of the PUSCH is one of three subcarriers and six subcarriers
  • the bits are used for resource allocation, which helps to save DCI bits.
  • the frequency resource included in the PUSCH includes three subcarriers, six subcarriers, and one of two consecutive subcarriers of three subcarriers.
  • the bits are used for resource allocation, which helps to save DCI bits.
  • the subcarrier included in the frequency resource indicating the PUSCH is one of 3 subcarriers, 6 subcarriers, and 2 consecutive subcarriers of the 3 subcarriers, so that the terminal device does not need to be according to the information for indicating the modulation mode.
  • the bit determines the modulation mode, and then determines whether the two consecutive subcarriers of the three subcarriers transmit uplink data or the uplink data of the three subcarriers according to the modulation scheme.
  • the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.
  • the sixth value represents a decimal number less than DCI for resource allocation
  • the decimal number represented by bits is Y, that is, The terminal device determines the PRB in which the frequency resource of the PUSCH in the system bandwidth is indicated by the bit used for resource allocation and the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of the subcarriers is less than 12.
  • the PRB index of the PRB in which the frequency resource of the PUSCH indicated by the bit for resource allocation is located in the system bandwidth
  • the decimal value represented by the fifth value is greater than or equal to That is, Y is greater than or equal to
  • the terminal device determines a narrow band in which the frequency resource of the PUSCH indicated by the bit for resource allocation is located and a resource block included in the frequency resource of the PUSCH in the narrow band.
  • RIV is defined in the same way as the prior art.
  • the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • the decimal value represented by the fifth value is smaller than DCI for resource allocation
  • the decimal number represented by bits is Y, that is, The terminal device determines a narrow band in which the frequency resource of the PUSCH indicated by the bit for resource allocation is located and a resource block included in the frequency resource of the PUSCH in the narrow band.
  • RIV is defined in the same way as the prior art.
  • the sixth value represents a decimal number greater than or equal to That is, Y is greater than or equal to
  • the terminal device determines the PRB in which the frequency resource of the PUSCH in the system bandwidth is indicated by the bit used for resource allocation and the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of the subcarriers is less than 12.
  • the determining, by the terminal device, the allocated resources according to the bits allocated by the resource may also have other manners, which is not limited in the embodiment of the present application.
  • the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • the method further includes: determining a modulation mode indicated by the DCI; and when the determined modulation mode is ⁇ /2 binary phase shift keying BPSK, transmitting the PUSCH in two consecutive subcarriers of the three subcarriers; When the determined modulation method is quadrature phase shift keying QPSK, the PUSCH is transmitted on three subcarriers.
  • a bit for indicating the number of RUs is further included in the DCI.
  • the terminal device After receiving the DCI, the terminal device also determines the number of RUs according to the bits used to indicate the number of RUs.
  • the bits used for resource allocation and the bits indicating the number of RUs are bits of different domains, or bits for resource allocation and bits for indicating the number of RUs are bits of different fields. That is, the resource allocation and the number of RUs are indicated by bits at different locations.
  • the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.
  • a bit for indicating a scheduling delay is further included in the DCI.
  • the terminal device determines a scheduling delay indicated by the bit indicating the scheduling delay.
  • the scheduling delay is the delay between the physical downlink control channel carrying the DCI and the PUSCH.
  • the physical downlink control channel may be an MPDCCH.
  • the bit used to indicate the scheduling delay is 2 bits. By implementing the embodiment, the scheduling delay can be indicated by the DCI, so that the terminal device can perform related operations according to the scheduling delay.
  • the number of bits of the DCI determined by the communications device is the same as the number of bits of the second DCI, or the number of bits of the DCI determined by the communications device is one more than the number of bits of the second DCI.
  • the second DCI is used to indicate the frequency resource of the PUSCH in the coverage enhancement mode A, and only supports the resource block indicating the frequency range within 1.4 MHz and the resource block whose frequency range is within 5 MHz; or the communication device determines
  • the DCI is used to cover enhanced mode A or the format is 6-0A.
  • whether the two consecutive subcarriers of the three subcarriers are the first two subcarriers or the last two subcarriers may be fixed, determined according to the cell ID, or notified by higher layer signaling.
  • beneficial effects of the method described in the second aspect and the optional implementation of the second aspect are consistent with the beneficial effects of the method described in the first aspect and the optional implementation of the first aspect.
  • beneficial effects corresponding to the method described in the aspects and the optional implementation of the first aspect are not described herein.
  • a communication device which can perform the method of the first aspect or the possible implementation of the first aspect described above.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the unit can be software and/or hardware.
  • a communication device which can perform the method of the second aspect or the possible implementation of the second aspect described above.
  • This function can be implemented in hardware or in hardware by executing the corresponding software.
  • the hardware or software includes one or more units corresponding to the functions described above.
  • the unit can be software and/or hardware.
  • a communication device comprising: a processor, a memory, a communication interface; a processor, a communication interface, and a memory connection; wherein the communication interface can be a transceiver.
  • the communication interface is used to implement communication with other network elements such as terminal devices.
  • one or more programs are stored in a memory
  • the processor invoking a program stored in the memory to implement the solution in the first aspect or the possible implementation manner of the first aspect, the communication device solving the problem
  • a communication device comprising: a processor, a memory, a communication interface; a processor, a communication interface, and a memory connection; wherein the communication interface can be a transceiver.
  • the communication interface is used to implement communication with other network elements such as terminal devices.
  • one or more programs are stored in a memory
  • the processor invoking a program stored in the memory to implement the solution in the second aspect or the possible implementation manner of the second aspect, the communication device solving the problem
  • a computer program product which, when run on a computer, causes the computer to perform the first aspect, the second aspect, the possible implementation of the first aspect, or the method in a possible implementation of the second aspect .
  • a chip product is provided, the chip product being disposed in a network device, performing the method of the first aspect or the possible implementation of the first aspect.
  • a chip product is provided, the chip product being disposed in a terminal device, performing the method in the second aspect or the possible implementation manner of the second aspect.
  • a computer readable storage medium storing instructions, when executed on a computer, causing the computer to perform the first aspect, the second aspect, and the first aspect A method of implementation or a possible implementation of the second aspect.
  • FIG. 1 is a schematic structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 2 is a schematic flowchart of an information indication method according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a DCI format according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of another DCI format according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of still another DCI format according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic structural diagram of still another DCI format according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of still another DCI format according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic flowchart diagram of still another information indication method according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of a terminal device according to an embodiment of the present invention.
  • the existing LTE uses the DCI format 6-0A to schedule the PUSCH, that is, the LTE uses the DCI format 6-0A to indicate the resource allocation of the PUSCH, the modulation and coding mode, and the like.
  • the information contained in the existing DCI format 6-0A is as shown in Table 1. among them, Indicates the number of uplink PRBs included in the system bandwidth. Means rounding down, Indicates an up rounding operation.
  • Each of the information contained in the DCI may be referred to as a field or field in the DCI, and one field or field in the DCI is mapped to one or more bits.
  • the bit for resource block allocation indicates that the frequency resource of the allocated PUSCH is a resource block having a frequency range of 1.4 MHz. Or the bit used for resource block allocation indicates that the frequency resource of the allocated PUSCH is a resource block whose frequency range is within 5 MHz. It should be noted that, in Table 1, the padding bits that may be included in the existing DCI format 6-0A are not shown. In the existing DCI format 6-0A, the bit for resource block allocation indicates that the frequency resource of the allocated PUSCH includes a resource block greater than or equal to one.
  • the resource block described in this document is a physical resource block, that is, a PRB.
  • a frequency resource of the PUSCH of less than 12 subcarriers In order to improve the spectrum efficiency of the PUSCH, it is necessary to allocate a frequency resource of the PUSCH of less than 12 subcarriers to the terminal device, that is, a frequency resource of the PUSCH allocated with the subcarrier as a minimum unit.
  • one resource block contains 12 subcarriers in frequency.
  • the DCI In order for the DCI to indicate resource allocation of less than 12 subcarriers, a large number of bits need to be added to the existing DCI. For example, it is necessary to add a bit for indicating a subcarrier allocated in a PRB in an existing DCI, such as adding 3 bits. In addition, bits for indicating other information need to be added to the DCI. Therefore, when the DCI supports resource allocation indicating less than 12 subcarriers, the bit overhead of the DCI is relatively large.
  • the embodiment of the present application provides an information indication method and related device, which is beneficial for reducing the number of bits of DCI when the DCI supports resource allocation indicating less than 12 subcarriers.
  • the application can be applied to an LTE system or an evolved system thereof.
  • the present invention is also applicable to other communication systems as long as the entity (i.e., communication device) in the communication system needs to transmit a frequency resource indicating that the DCI indicates communication with another entity (i.e., the terminal device), the other entity (i.e., the terminal device). You need to interpret DCI in some way.
  • the communication device involved in the embodiment of the present application is an entity on the network side for transmitting or receiving a signal.
  • the communication device may be an evolved base station (eNB or eNodeB) in an LTE system, or a radio network controller in a cloud radio access network (CRAN), or may be a 5G network.
  • An access network device such as a gNB, may be a small station, a micro station, a transmission reception point (TRP), or a relay station, an access point, or a public land mobile network that is evolved in the future (public land mobile) Access network equipment in network, PLMN).
  • the communication device may also be a terminal device, that is, the present application is applicable to a communication system in which one terminal device needs to send a DCI indication to allocate resources for communication with another terminal device, and the other terminal device needs to pass a certain Ways to interpret the DCI.
  • the terminal device involved in the present application may be an access terminal, a user equipment (UE), a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile terminal, a user terminal, a terminal, and a wireless device.
  • Communication device user agent or user device.
  • the access terminal may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication.
  • PLMN public land mobile network
  • FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present application.
  • the communication system may include seven communication devices, which are a base station and UE1 to UE6, respectively.
  • the base station transmits DCI to one or more of UE1 to UE6.
  • the DCI is used to indicate a frequency resource of a PUSCH of one or more UEs in UE1 to UE6. Therefore, the communication device involved in the embodiment of the present application may be a base station, and the terminal device may be any one of UE1 to UE6.
  • UE4 to UE6 may also constitute a communication system, in which UE5 may transmit DCI to one or more UEs of UE4 and UE6.
  • the DCI is used to indicate a frequency resource of a PUSCH of one or more UEs in UE4 and UE6. Therefore, the communication device involved in the embodiment of the present application may be the UE5, and the terminal device may be any one of the UE4 and the UE6.
  • FIG. 2 is a schematic flowchart diagram of an information indication method according to an embodiment of the present application. As shown in FIG. 2, the information indication method includes the following sections 201-208, wherein:
  • the communication device determines a frequency resource of the PUSCH that the DCI needs to indicate.
  • the communication device may be a base station or a terminal device.
  • the terminal device is any one of UE1 to UE6.
  • the terminal device is any one of the UE 4 and the UE 6.
  • the PUSCH is used to carry uplink data of the terminal device.
  • the communication device determines the frequency resource of the PUSCH that the DCI needs to indicate, that is, the communication device determines the frequency resource of the PUSCH that needs to be allocated to the terminal device.
  • the communications device determines that the bit used to indicate the HARQ process ID in the DCI is 3 bits, and the bit used to indicate the RV is 2 bits, and is used to indicate the PUSCH.
  • the bits of the TPC command are 2 bits.
  • the part 202 or 203 is performed.
  • the frequency resource of the PUSCH includes the number of physical resource blocks PRB greater than or equal to 1, indicating that the communication device performs resource allocation with the resource block as a minimum unit.
  • the communications device determines that the number of bits used to indicate the HARQ process ID in the DCI is less than 3, and/or the bit used to indicate the RV in the DCI is 1 bit, and The bit of the TPC command used to indicate the PUSCH in the DCI is 0 bits.
  • bits used to indicate the HARQ process number in the foregoing 202, 203, the bit used to indicate the RV, and the bit used to indicate the TPC command of the PUSCH are the bits corresponding to the field in the DCI, or are occupied by the fields in the DCI.
  • the number of subcarriers included in the frequency resource of the PUSCH is less than 12, indicating that the communication device performs resource allocation with the subcarrier as a minimum unit.
  • the bit used to indicate the HARQ process ID is 1 bit.
  • the communication device determines the DCI.
  • the communication device determines the DCI.
  • the communication device sends the DCI to the terminal device.
  • the DCI is sent to the terminal device.
  • the terminal device determines a frequency resource of the PUSCH indicated by the DCI.
  • the terminal device after receiving the DCI, determines the frequency resource of the PUSCH indicated by the DCI.
  • the terminal device determines that the bit used to indicate the hybrid automatic retransmission request HARQ process number in the DCI is 3 bits, and is used to indicate the redundancy version RV.
  • the bit of the bit is 2 bits, and the bit for indicating the transmission power control TPC command of the PUSCH is 2 bits.
  • the terminal device determines that the number of bits used to indicate the HARQ process ID in the DCI is less than 3, and/or the bit used to indicate the RV in the DCI is 1 bit. And/or the bit of the TPC command used to indicate the PUSCH in the DCI is 0 bits.
  • the bit used to indicate the HARQ process ID is 1 bit.
  • the terminal device after receiving the downlink control information DCI, performs one of steps 207 and 208. If execution 207, 206 can be performed before 207, or after 207. If executed 208, 206 may be performed prior to 208 or after 208.
  • the communication device determines different DCIs according to different resource allocation situations.
  • the frequency resource of the allocated PUSCH includes the number of physical resource blocks PRB greater than or equal to 1
  • the determined DCI indicates the frequency resource of the PUSCH
  • the DCI further includes a bit for indicating the HARQ process number, and a bit for indicating the RV.
  • a bit for indicating a TPC command of the PUSCH is 3 bits
  • the bit for indicating the RV is 2 bits
  • the bit for indicating the TPC command of the PUSCH is 2 bits.
  • the terminal device After receiving the DCI, the terminal device determines the frequency resource indicated by the DCI, and determines that the bit used to indicate the HARQ process ID in the DCI is 3 bits, and the bit used to indicate the RV is 2 bits, and is used to indicate the TPC command of the PUSCH.
  • the bit is 2 bits, and the HARQ process number is determined according to the bit used to indicate the HARQ process number, the RV is determined according to the bit used to indicate the RV, and the TPC command of the PUSCH is determined according to the bit used to indicate the TPC command of the PUSCH.
  • the DCI determined by the communication device includes, in addition to the frequency resource of the PUSCH, the number of bits for indicating the HARQ process number less than 3 bits, and / Or 1 bit is used to indicate the bit of the RV, and/or 0 bit is used to indicate the bit of the TPC command of the PUSCH.
  • the terminal device determines the resource indicated by the DCI, and determines that the number of bits used to indicate the HARQ process ID in the DCI is less than three, and determines the HARQ process ID according to the bit used to indicate the HARQ process ID.
  • the terminal device determines that the bit indicating the RV is 1 bit, and determines the RV according to the bit used to indicate the RV.
  • the bit used to indicate the HARQ process ID is 1 bit.
  • the HARQ process number indicating the bit indication indicating the HARQ process number may be 0 or 1.
  • the RV indicating the bit indication of the RV may be 0 or 2.
  • the DCI includes a bit of 0 bits for indicating a TPC command of the PUSCH, which means that the DCI does not include a bit for indicating a TPC command of the PUSCH. At this time, the TPC command of the PUSCH does not pass the DCI indication, and the transmission power of the PUSCH can be determined by other methods.
  • the number of bits used to indicate the HARQ process number is greater than or equal to 1 when the number of physical resource blocks PRB included in the frequency resource of the PUSCH is greater than or equal to 1.
  • the number of bits of the HARQ process number is small. Since the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the time required for one transmission of one transport block of the uplink data is greater than 1 ms, so the round trip delay and data processing according to data transmission between the communication device and the terminal device are performed.
  • the DCI is used to indicate the HARQ process at this time. If the bit of the number is still 3 bits, there is a bit overhead that is not needed. And/or, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the number of bits used to indicate the RV is greater than or equal to 1 when the number of bits of the physical resource block PRB included in the frequency resource of the PUSCH is used to indicate The number of bits of the RV is one less.
  • the MTC service usually has a small data packet, the reception performance when the uplink data transmission adopts two RVs and the reception performance when the four RVs are used are not obvious. Therefore, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, In order to make the number of bits of the DCI not increase a lot, the number of bits used to indicate the RV can be reduced. And/or, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the bit for indicating the TPC command of the PUSCH is not included in the DCI. The TPC command of the PUSCH indicated by the DCI may not be applicable to the transport block of the next uplink data carried by the PUSCH.
  • the communication device can allocate frequency resources of two PUSCHs, one is a frequency resource allocated to a PUSCH greater than or equal to one resource block, and the other is a PUSCH allocated less than 12 subcarriers. Frequency resources.
  • the communication device can flexibly select one of the frequency resources for allocating the two PUSCHs according to requirements. Moreover, when the communication device allocates a frequency resource of the PUSCH of less than 12 subcarriers, the terminal device can concentrate the transmission power on a smaller bandwidth, so that the spectrum efficiency of the PUSCH is improved.
  • the DCI further includes a flag bit for distinguishing the resource allocation with the subcarrier as the minimum unit and the resource allocation with the resource block as the minimum unit; when the value of the flag bit is the first value, indicating the frequency of the PUSCH.
  • the number of the physical resource block PRBs included in the resource is greater than or equal to 1; when the value of the flag bit is the second value, the number of subcarriers included in the frequency resource of the PUSCH is less than 12.
  • the terminal device determines that the number of physical resource blocks PRB included in the frequency resource of the PUSCH is greater than or equal to 1; when the value of the flag bit is the second value, the terminal device determines the PUSCH.
  • the number of subcarriers included in the frequency resource is less than 12.
  • the flag bit may be a bit corresponding to a certain field in the DCI, or the flag bit may be a bit occupied by a certain field in the DCI, or the flag bit may be a bit to which a certain field in the DCI is mapped.
  • the flag bit may be 1 bit in the DCI.
  • the design of the DCI differs when the frequency resources of the PUSCH are allocated with the subcarrier as the minimum unit and the resource block as the minimum unit. Therefore, by adding a flag bit for distinguishing a resource allocation with a subcarrier as a minimum unit and a resource allocation with a resource block as a minimum unit in the DCI, the terminal device can determine that the PUSCH with the number of PRBs greater than or equal to 1 is allocated.
  • the frequency resource is also the frequency resource of the PUSCH whose number of allocated subcarriers is less than 12. Thereby, the terminal device can accurately parse the information indicated by the DCI.
  • the bit for resource block allocation is included in the DCI.
  • the bit used for resource block allocation is The bits, which are used for resource block allocation, indicate the allocated resource blocks in the same manner as the bits used for resource block allocation in the existing DCI format 6-0A.
  • the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is Bits, among them, a bit is used to indicate a narrow band in which the frequency resource of the PUSCH is located, and 6 bits are used to indicate a PRB in which a frequency resource of the PUSCH is located in a narrow band, and a subcarrier included in a frequency resource of the PUSCH in the PRB,
  • the frequency resources of the PUSCH include subcarriers of one of three subcarriers and six subcarriers.
  • the specific implementation manner of determining, by the terminal device, the frequency resource of the PUSCH indicated by the DCI is: the terminal device determines a narrowband where the frequency resource of the PUSCH indicated by the bit used for the subcarrier allocation is located, where the frequency resource of the PUSCH is located in the narrowband The PRB and the subcarriers included in the frequency resource of the PUSCH in the PRB.
  • the DCI indicates the frequency resource of the allocated PUSCH by the bit for subcarrier allocation.
  • the bits for subcarrier allocation only support one of indicating the allocation of 3 subcarriers within the PRB and the allocation of 6 subcarriers within the PRB. That is, in this embodiment, the bits for subcarrier allocation do not support indicating other numbers of subcarriers than 3 and 6.
  • the frequency range of the system bandwidth contains one or more narrowbands.
  • the narrowband included in the frequency range of the system bandwidth is numbered on the frequency, which is a narrowband index.
  • a narrow band includes 6 PRBs in frequency.
  • the six PRBs included in a narrow band on the frequency are numbered 0-5 in frequency, that is, the PRB index in the narrow band.
  • a PRB includes 12 subcarriers, and 12 subcarriers included in one frequency of one PRB are numbered 0-11 on the frequency, that is, a subcarrier index in the PRB.
  • the numbering of the frequency in the present application may be performed in ascending order of frequency or in descending order of frequency.
  • the allocation method of allocating 3 subcarriers and 6 subcarriers in one PRB indicated by the bits used for subcarrier allocation can be as shown in Table 2. There are a total of six allocation modes for allocating 3 subcarriers or 6 subcarriers within one PRB. The six distribution methods are numbered as shown in Table 2.
  • I SC is a parameter indicating a subcarrier included in a frequency resource of the PUSCH in the PRB, that is, a number of the six allocation methods.
  • a number of the six allocation methods there are other numbering methods for the six types of distribution modes, which are not limited in the embodiment of the present application.
  • the DCI can accurately indicate the frequency resource of the PUSCH, and the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • 3 bits indicate the PRB where the frequency resource of the PUSCH is located in the narrow band; 3 bits indicate the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • 6 of the bits used for subcarrier allocation are 001000.
  • the three bits of 001 indicate that the PRB of the PRB in which the PUSCH is located in the narrowband has a PRB index of 1.000.
  • the three bits indicate that the subcarrier included in the frequency resource of the PUSCH in the PRB has a subcarrier index of 0 in the PRB. 1,2.
  • 6 bits of the bits used for subcarrier allocation may also jointly indicate a PRB in which the frequency resource of the PUSCH in the narrow band and a subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the PRB index of the PRB indicating the frequency resource of the PUSCH in the narrowband is 0, indicating that the subcarrier included in the frequency resource of the PUSCH in the PRB is in the PRB.
  • the subcarrier index is 3, 4, 5.
  • the 6 bits of the bits used for subcarrier allocation are 000000, indicating that the PRB index of the PRB in which the frequency resource of the PUSCH is located in the narrowband is 0, indicating that the subcarrier included in the frequency resource of the PUSCH in the PRB is in the PRB.
  • the carrier index is 0, 1, 2. .
  • the number of valid states of the bits of the subcarrier included in the PRB indicating the frequency resource of the PUSCH in the narrowband and the frequency resource of the PUSCH in the PRB is 36, that is, the number of allocation modes of a PRB allocated in the narrowband is 6* in one PRB.
  • the frequency resource included in the PUSCH is one of 3 subcarriers and 6 subcarriers
  • 6 bits are used to jointly indicate the PRB where the frequency resource of the PUSCH in the narrowband is located and the frequency of the PUSCH in the PRB.
  • the subcarriers included in the resource are used to jointly indicate the PRB where the frequency resource of the PUSCH in the narrowband is located and the frequency of the PUSCH in the PRB.
  • the PRB in which the frequency resource of the PUSCH is located in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB can be accurately indicated, and the bit of the DCI can be saved.
  • the frequency resource of the allocated PUSCH includes one subcarrier and one of three subcarriers, and the bit used for subcarrier allocation is used to indicate the PRB of the frequency resource of the PUSCH in the narrowband.
  • the 6-bit decimal number of the subcarrier included in the frequency resource of the PUSCH in the PRB is X.
  • the terminal device determines, according to the value of the 6 bits, the PRB in which the frequency resource of the PUSCH in the narrowband is located, and the subcarrier included in the frequency resource of the PUSCH in the PRB, which may be in other manners. limited.
  • the terminal device can accurately determine the PRB in which the frequency resource of the PUSCH in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is a bit, which is used to indicate a PRB in which a frequency resource of a PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of a PUSCH in the PRB,
  • the frequency resources included in the PUSCH include one of 3 subcarriers and 6 subcarriers.
  • the specific implementation manner of determining, by the terminal device, the frequency resource of the PUSCH indicated by the DCI is: the terminal device determines a PRB where the frequency resource of the PUSCH in the system bandwidth is indicated by the bit used for the subcarrier allocation, and the PUSCH in the PRB.
  • the subcarriers included in the frequency resource is: the terminal device determines a PRB where the frequency resource of the PUSCH in the system bandwidth is indicated by the bit used for the subcarrier allocation, and the PUSCH in the PRB.
  • the DCI indicates the frequency resource of the allocated PUSCH by the bit for subcarrier allocation.
  • the bits for subcarrier allocation only support one of indicating the allocation of 3 subcarriers within the PRB and the allocation of 6 subcarriers within the PRB.
  • the number of allocation methods for allocating a PRB in the system bandwidth is Kind. As shown in Table 2 above, there are a total of six allocation modes for allocating three subcarriers or six subcarriers within one PRB. Therefore, the number of valid states of the bits of the subcarrier included in the PRB indicating the frequency resource of the PUSCH in the system bandwidth and the frequency resource of the PUSCH in the PRB is Kind, that is, the number of allocation methods for allocating a PRB within the system bandwidth Number of allocation methods for allocating subcarriers within one PRB Kind. Therefore, when the frequency component included in the frequency resource of the PUSCH is one of three subcarriers and six subcarriers, it is required to be used.
  • the bits are combined to indicate the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the DCI can accurately indicate the frequency resource of the PUSCH, and the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • the bit bits jointly indicate the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB, which is advantageous for saving bits of the DCI.
  • the frequency resource of the indicated PUSCH may be in a narrow band or outside the narrow band, which increases the flexibility of resource allocation.
  • the bits used for subcarrier allocation are Bits, and the decimal number of the bits used for subcarrier allocation is X.
  • the PRBs within the system bandwidth are numbered on the frequency, ie the PRB index in the system bandwidth.
  • the terminal device determines, according to the value of the bit allocated for the subcarrier, that the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB may have other manners.
  • the embodiment of the present application is not limited.
  • the terminal device can accurately determine the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is Bits, among them,
  • the bits are used to indicate the narrowband in which the frequency resource of the PUSCH is located, and the 6 bits are used to indicate the PRB in which the frequency resource of the PUSCH is located in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB,
  • the allocated frequency resources of the PUSCH include one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers.
  • the specific implementation manner of determining, by the terminal device, the frequency resource of the PUSCH indicated by the DCI is: determining a narrowband where the frequency resource of the PUSCH indicated by the bit used for the subcarrier allocation is located, and a PRB where the frequency resource of the PUSCH is located in the narrowband The subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the DCI indicates the frequency resource of the allocated PUSCH by the bit for subcarrier allocation.
  • the bits for subcarrier allocation only support one of indicating 3 subcarriers allocated within the PRB, 6 subcarriers within the PRB, and 2 consecutive subcarriers of the 3 subcarriers.
  • Table 3 the bits used for subcarrier allocation indicate that 3 subcarriers are allocated in the PRB, 6 subcarriers are allocated in the PRB, and 2 consecutive subcarriers among the 3 subcarriers allocated in the PRB have a total of 10 Distribution method. The 10 distribution methods are numbered as shown in Table 3.
  • I SC is a parameter indicating a subcarrier included in a frequency resource of the PUSCH in the PRB, that is, a number of the six allocation methods. There may be other numbering methods for the 10 types of allocation methods, which are not limited in the embodiment of the present application.
  • Allocating 2 consecutive subcarriers of the 3 subcarriers means that the terminal equipment transmits uplink data on the first 2 or the last 2 subcarriers of the allocated 3 subcarriers, and correspondingly, the communication device allocates 3 subcarriers. The uplink data is received on the first two or the last two subcarriers.
  • the number of valid states of the bits of the subcarrier included in the PRB indicating the frequency resource of the PUSCH in the narrowband and the frequency resource of the PUSCH in the PRB is 60, that is, the number of allocation modes of a PRB allocated in the narrowband is 6* in one PRB.
  • the frequency resource of the allocated PUSCH includes one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers, six bits are required to jointly indicate the PUSCH in the narrowband.
  • the DCI can accurately indicate the frequency resource of the PUSCH, and the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • the sub-carrier included in the frequency resource indicating the PUSCH is one of three subcarriers, six subcarriers, and two consecutive subcarriers of the three subcarriers, so that the terminal device does not need to be used according to the information for indicating the modulation mode.
  • the bit determines the modulation mode, and then determines whether to transmit uplink data in two consecutive subcarriers of the three subcarriers according to the modulation mode, or to transmit uplink data in three subcarriers.
  • the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.
  • the 6 bits combined to indicate the PRB in which the frequency resource of the PUSCH in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB are beneficial to save the bits of the DCI.
  • the bit for subcarrier allocation only supports one of indicating that 3 subcarriers are allocated in the PRB, 6 subcarriers are allocated in the PRB, and 2 consecutive subcarriers are allocated in the PRB.
  • the number of decimal digits of the 6 bits of the subcarrier included in the PRB indicating the frequency resource of the PUSCH in the narrowband and the frequency resource of the PUSCH in the PRB is X.
  • the terminal device determines that the PRB index of the PRB in which the frequency resource of the PUSCH indicated by the 6 bits is in the narrowband is
  • the terminal device may determine, according to the value of the 6 bits, the PRB in which the frequency resource of the PUSCH in the narrowband is located, and the subcarrier included in the frequency resource of the PUSCH in the PRB. Make a limit.
  • the terminal device can accurately determine the PRB in which the frequency resource of the PUSCH in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the DCI further includes a bit for subcarrier allocation
  • the bit used for subcarrier allocation is a bit, which is used to indicate a PRB in which a frequency resource of a PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of a PUSCH in the PRB
  • the frequency resources included in the PUSCH include one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers.
  • the specific implementation manner of determining, by the terminal device, the frequency resource of the PUSCH indicated by the DCI is: determining a PRB where the frequency resource of the PUSCH in the system bandwidth indicated by the bit used for the subcarrier allocation and a frequency resource of the PUSCH in the PRB Subcarriers included.
  • the DCI indicates the frequency resource of the allocated PUSCH by the bit for subcarrier allocation.
  • the bits for subcarrier allocation only support the allocation of 3 subcarriers within the PRB, the allocation of 6 subcarriers within the PRB, and the allocation of 2 consecutive subcarriers among the 3 subcarriers within the PRB.
  • the number of allocation methods for allocating a PRB in the system bandwidth is Kind. There are a total of 10 allocation modes for allocating 3 subcarriers, or 6 subcarriers, or 2 consecutive subcarriers of 3 subcarriers within one PRB, as shown in Table 3 above. Therefore, the number of valid states of the bits of the subcarrier included in the PRB indicating the frequency resource of the PUSCH in the system bandwidth and the frequency resource of the PUSCH in the PRB is Kind, that is, the number of allocation methods for allocating a PRB within the system bandwidth Number of allocation methods for allocating subcarriers within one PRB Kind.
  • the frequency component included in the frequency resource of the PUSCH is one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers, it is required to be used.
  • the bits are combined to indicate the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the DCI can accurately indicate the frequency resource of the PUSCH, and the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • the sub-carrier included in the frequency resource indicating the PUSCH is one of three subcarriers, six subcarriers, and two consecutive subcarriers of the three subcarriers, so that the terminal device does not need to be used according to the information for indicating the modulation mode.
  • the bit determines the modulation mode, and then determines whether to transmit uplink data in two consecutive subcarriers of the three subcarriers according to the modulation mode, or to transmit uplink data in three subcarriers.
  • the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.
  • the joint indicates that the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB are beneficial to save the bits of the DCI.
  • the frequency resource of the indicated PUSCH may be in a narrow band or outside the narrow band, which increases the flexibility of resource allocation.
  • the bits used for subcarrier allocation are Bits, and the decimal number of the bits used for subcarrier allocation is X.
  • the terminal device determines, according to the value of the bit used for the subcarrier allocation, that the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB may have other manners.
  • the application examples are not limited.
  • the terminal device can accurately determine the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB.
  • whether the two consecutive subcarriers of the three subcarriers are the first two subcarriers or the last two subcarriers may be fixed, determined according to the cell ID, or notified by higher layer signaling.
  • the terminal device determines, according to the cell ID, whether the first two subcarriers or the last two subcarriers of the three subcarriers are allocated. For example, three subcarriers are represented as subcarrier 1, subcarrier 2, and subcarrier 3.
  • the subcarriers are subcarrier 2 and subcarrier 3.
  • the bit in the first position in the DCI when the value of the flag bit is the second value, the bit in the first position is a bit used for subcarrier allocation, and when the value of the flag bit is the first value,
  • the bits of the first location are bits for resource block allocation and partial bits for indicating RV.
  • the first value of the flag bit is 1 and the second value of the flag bit is 0.
  • the bit at the first position is a bit for subcarrier allocation.
  • the bits of the first position are bits for resource block allocation and partial bits for indicating RV.
  • FIG. 3 is only an example of a DCI structure. The value of the bit in the DCI structure shown in FIG. 3 can be replaced with other values.
  • the position of the flag bit, the first position, and the position of the bit used to indicate the RV can be For other locations, the embodiments of the present application are not limited.
  • the DCI further includes a bit for indicating the number of resource units (RUs).
  • the terminal device after receiving the DCI, the terminal device further determines the number of RUs according to the bits used to indicate the number of RUs.
  • the bits for subcarrier allocation and the bits for indicating the number of RUs are bits of different domains, or bits for subcarrier allocation and bits for indicating the number of RUs are bits of different fields. That is, the subcarrier allocation and the number of RUs are indicated by bits at different positions.
  • a bit for subcarrier allocation in the DCI and a bit for indicating the number of RUs are a total of ten, the first 9 bits are bits for indicating subcarrier allocation, and the last 1 bit is a bit for indicating the number of RUs. .
  • the number of RUs involved in the present application is the number of RUs to which one transport block (TB) of the PUSCH is mapped.
  • the terminal device performs channel coding, rate matching, and the like on a TB to obtain a codeword, and performs scrambling, modulation, layer mapping, transform precoding, and precoding on one codeword, and then mapping to one or more Ru.
  • An RU includes 12 subcarriers in frequency, and the number of slots included in time is greater than or equal to 2.
  • the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.
  • the bit used to indicate the number of RUs includes 1 or 2 bits, and the indicated number of RUs is one of 1, 2, or one of 1, 2, 4, or 1, 2, 3, One of the four.
  • the bit of the second location in the DCI when the value of the flag bit is the second value, the bit of the second location is a bit used to indicate the number of RUs.
  • the bit of the second position is a partial bit for indicating the HARQ process number, or a bit for indicating a TPC command of the PUSCH, or a partial bit for indicating the RV.
  • the first value of the flag bit is 1 and the second value of the flag bit is 0.
  • the bit for indicating the number of RUs is 2 bits
  • the bit at the second position is a bit indicating the number of RUs.
  • the bit of the second position is a partial bit for indicating the HARQ process number.
  • the bit for indicating the number of RUs is 2 bits
  • the bit at the second position is a bit indicating the number of RUs.
  • the bit of the second position is a bit for indicating the TPC command of the PUSCH.
  • the bit for indicating the number of RUs when the bit for indicating the number of RUs is 1 bit, when the flag bit in the DCI is 0, the bit at the second position is a bit indicating the number of RUs.
  • the bit of the second position is a partial bit for indicating the RV.
  • the values of the bits in the DCI structure shown in FIG. 4 to FIG. 6 may be replaced by other values, the position of the flag bit, the second position, the position of the bit for indicating the HARQ process number, and the TPC command for indicating the PUSCH.
  • the position of the bit and the position of the bit for indicating the RV may be other positions, which are not limited in the embodiment of the present application.
  • the DCI when the value of the flag bit is the second value, the DCI further includes a bit for indicating a scheduling delay.
  • the terminal device determines the scheduling delay according to the bit used to indicate the scheduling delay.
  • the scheduling delay is the delay between the physical downlink control channel carrying the DCI and the PUSCH.
  • the physical downlink control channel may be a physical downlink control channel (MPDCCH) of a device type communication.
  • the bit used to indicate the scheduling delay is 2 bits.
  • the scheduling delay can be indicated by the DCI, so that the terminal device can perform related operations according to the scheduling delay.
  • the bit in the third position when the value of the flag bit is the second value, the bit in the third position is a bit used to indicate the scheduling delay.
  • the bit of the third bit is a partial bit for indicating the HARQ process number or a bit for indicating a TPC command of the PUSCH.
  • the bit for indicating the scheduling delay when the bit for indicating the scheduling delay is 2 bits, when the flag bit in the DCI is 0, the bit at the third position is a bit indicating the scheduling delay. When the flag bit in the DCI is 1, the bit in the third position is a partial bit indicating the HARQ process number.
  • the value of the bit in the DCI structure shown in FIG. 7 may be replaced with other values.
  • the location of the identifier bit, the third location, and the location of the bit used to indicate the HARQ process ID may be other locations. limited.
  • the DCI further includes a first field, where the first field is used to indicate the number of the RU and the subcarrier included in the frequency resource of the PUSCH, where the number of the subcarrier and the number of the RU are The same bit indication in the bits to which the first field is mapped.
  • the specific implementation manner of determining, by the terminal device, the frequency resource of the PUSCH indicated by the DCI is: determining a subcarrier included in the frequency resource of the PUSCH indicated by the first field. After receiving the DCI, the terminal device may also determine the number of RUs indicated by the first field.
  • the bits of the first field jointly indicate the number of subcarriers and the number of RUs.
  • the terminal device cannot determine the number of RUs and the allocated subcarriers according to the value of the partial bits of the first field.
  • the allocated subcarriers are subcarrier 0, subcarrier 1 and subcarrier 2, indicating that the number of RUs is 2.
  • the allocated subcarriers are subcarrier 3, subcarrier 4, and subcarrier 5, indicating that the number of RUs is 2.
  • the allocated subcarriers are subcarrier 3, subcarrier 4, and subcarrier 5, indicating that the number of RUs is 3.
  • the first field is mapped to the bit Bits.
  • the bits are used to indicate the narrowband in which the frequency resource of the PUSCH is located, the 7 bits are used to indicate the PRB in which the frequency resource of the PUSCH is located in the narrowband, the number of subcarriers included in the frequency resource of the PUSCH in the PRB, and the number of RUs.
  • the frequency resources included in the PUSCH include one of three subcarriers and six subcarriers, and the number of RUs is one of three types of RUs.
  • the specific implementation manner of the subcarrier included in the frequency resource of the PUSCH indicated by the first field may be: determining, in the bit to which the first field is mapped a narrow band in which the frequency resource of the PUSCH indicated by the bit is located; a PRB in which the frequency resource of the PUSCH in the narrow band indicated by the 7 bits in the first field is determined, and a frequency resource included in the frequency resource of the PUSCH in the PRB Carrier.
  • a specific implementation manner in which the terminal device determines the number of RUs indicated by the first field may be: determining the number of RUs indicated by 7 bits in the first field.
  • the first field indicates the number of RUs and the frequency resources of the allocated PUSCH.
  • the bit of the first field indicates that the number of RUs can be one of 1, 2, and 4.
  • the number of allocation methods for allocating one PRB in one narrow band is six. As shown in Table 2 above, there are a total of six allocation modes for allocating three subcarriers or six subcarriers within one PRB.
  • the number of RUs is one of three RU numbers. Therefore, the number of allocation methods for allocating one PRB in a narrow band is 6*.
  • the PRB in which the frequency resource of the PUSCH is located and the number of subcarriers and the number of RUs included in the frequency resource of the PUSCH in the PRB.
  • the DCI can accurately indicate the number of RUs and the frequency resources of the PUSCH
  • the terminal device can accurately calculate the number of RUs and the frequency resources of the PUSCH, and use 7 bits to jointly indicate the PRB where the frequency resources of the PUSCH in the narrowband are located.
  • the number of subcarriers and the number of RUs included in the frequency resource of the PUSCH in the PRB is advantageous for saving bits of DCI.
  • the PRB indicating the frequency resource of the PUSCH in the narrowband, the subcarrier included in the frequency resource of the PUSCH in the PRB, and the decimal number of 7 bits of the number of RUs are X.
  • the terminal device determines the number of RUs indicated by the 7 bits
  • the terminal device determines, according to the value of the 7 bits, the PRB in which the frequency resource of the PUSCH in the narrowband is located, the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of RUs, and may also have other manners.
  • the application examples are not limited.
  • the terminal can accurately determine the PRB in which the frequency resource of the PUSCH in the narrowband and the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of RUs.
  • the first field is mapped to the bit a bit indicating the PRB in which the frequency resource of the PUSCH is located in the system bandwidth, the number of subcarriers included in the frequency resource of the PUSCH in the PRB, and the number of RUs,
  • the frequency resources included in the PUSCH include one of three subcarriers and six subcarriers
  • the number of RUs is one of three types of RUs.
  • the specific implementation manner of the sub-carrier included in the frequency resource of the PUSCH indicated by the first field may be: determining the PRB where the frequency resource of the PUSCH in the system bandwidth indicated by the bit to which the first field is mapped, The subcarrier included in the frequency resource of the PUSCH in the PRB.
  • the DCI indicates the number of RUs and the frequency resources of the allocated PUSCH through the first field.
  • the first field only supports one of indicating the allocation of 3 subcarriers within the PRB and the allocation of 6 subcarriers within the PRB.
  • the number of allocation methods for allocating a PRB in the system bandwidth is Kind. As shown in Table 2 above, there are a total of six allocation modes for allocating three subcarriers or six subcarriers within one PRB. Number of allocation methods for allocating a PRB within the system bandwidth Number of allocation methods for allocating subcarriers in a PRB by 6*RU Kind. Therefore, the frequency resource of the allocated PUSCH includes one of three subcarriers and six subcarriers, and the number of RUs is one of three types of RUs, which is required to be used. The bits are combined to indicate the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the number of subcarriers and the number of RUs included in the frequency resource of the PUSCH in the PRB.
  • the DCI can accurately indicate the number of RUs and the frequency resources of the PUSCH.
  • the terminal device can accurately determine the number of RUs and the frequency resources of the PUSCH, and use
  • the bits are used to jointly indicate the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the number of subcarriers and the number of RUs included in the frequency resource of the PUSCH in the PRB, which is advantageous for saving bits of DCI.
  • the frequency resource of the indicated PUSCH may be in a narrow band or outside the narrow band, which increases the flexibility of resource allocation.
  • the first field is mapped to the bit The number of bits, whose decimal number corresponds to X.
  • the terminal device determines that the PRB index of the PRB where the frequency resource of the PUSCH indicated by the first field is located in the system bandwidth is The terminal device determines a parameter of the subcarrier included in the frequency resource indicating the PUSCH in the PRB indicated by the first field The terminal device determines that the number of RUs indicated by the first field is X mod 3+1.
  • the terminal device determines, according to the value of the bit of the first field, the PRB in which the frequency resource of the PUSCH is located in the system bandwidth, the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of RUs may have other
  • the embodiment of the present application is not limited.
  • the terminal can accurately determine the PRB in which the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of RUs.
  • the bit in the fourth position when the value of the flag bit is the second value, the bit in the fourth position is the bit to which the first field is mapped.
  • the bit of the fourth position is a bit indicating the resource block allocation and a partial bit of the HARQ process number, or a bit indicating a resource block allocation and a TPC command of the PUSCH.
  • the frequency component included in the frequency resource of the PUSCH is one of 3 subcarriers and 6 subcarriers; when the frequency resource of the PUSCH includes 3 subcarriers.
  • the terminal device may further perform the steps of: determining a modulation mode indicated by the DCI; and when the determined modulation mode is ⁇ /2 binary phase shift keying BPSK, transmitting the PUSCH in 2 consecutive subcarriers of the 3 subcarriers; When the modulation method is quadrature phase shift keying QPSK, the PUSCH is transmitted on three subcarriers.
  • the communication device may further perform the following steps: when the modulation mode indicated by the DCI is /2 binary phase shift keying BPSK, the 2 consecutive subcarriers of the 3 subcarriers receive the PUSCH; when the modulation mode indicated by the DCI is the quadrature phase When QPSK is keyed, the PUSCH is received on 3 subcarriers.
  • whether two consecutive subcarriers of the three subcarriers are the first two subcarriers of the three subcarriers or the last two subcarriers may be fixed, or determined according to the cell ID, or by higher layer signaling. Noticed.
  • the format of the DCI determined by the communication device may be as shown in Table 4 below.
  • Table 4 does not list the padding bits that may be included in the DCI.
  • the padding bits can all be zero.
  • the order of the bits used to indicate each information among all the bits of the DCI may be as shown in Table 4 or different from Table 4.
  • the number of bits of the DCI determined by the communications device is the same as the number of bits of the second DCI, or the number of bits of the DCI determined by the communications device is one more than the number of bits of the second DCI.
  • the second DCI is used to indicate the frequency resource of the PUSCH in the coverage enhancement mode A, and only supports the resource block indicating the frequency range within 1.4 MHz and the resource block whose frequency range is within 5 MHz; or the communication device determines
  • the DCI is used to cover enhanced mode A or the format is 6-0A.
  • the second DCI may be a DCI with an existing format of 6-0A.
  • the DCI determined by the communication device is included in addition to the padding bits that are all 0s. or Bits.
  • FDD and high layer signaling configure a parameter ce-pdsch-puschEnhancement-config for PUSCH enhancement
  • the DCI determined by the communication device is included in addition to the padding bits that are all 0s. or Bits.
  • the DCI determined by the communication device is included in addition to the padding bits that are all 0s.
  • the DCI determined by the communication device is included in addition to the padding bits that are all 0s. or Bits.
  • FIG. 8 is a schematic flowchart diagram of an information indication method according to an embodiment of the present application. As shown in FIG. 8, the information indicating method includes the following sections 801 to 809, wherein:
  • the communications device determines a frequency resource of the PUSCH that the DCI needs to indicate.
  • the communications device sends radio resource control (RRC) signaling to the terminal device.
  • RRC radio resource control
  • the communications device before the communications device determines the DCI, the communications device sends RRC signaling to the terminal device. After the 802.
  • the RRC signaling is used to indicate that the frequency resource of the PUSCH indicated by the DCI is a resource of a first type or a resource of a second type; the resource of the first type includes a resource block with a frequency range of 1.4 MHz and a frequency range of 5 MHz.
  • the communications device determines that the bit used to indicate the HARQ process ID in the DCI is 3 bits, and the bit used to indicate the RV is 2 bits, and is used to indicate the PUSCH.
  • the bits of the TPC command are 2 bits.
  • part 803 or 804 is performed.
  • the communications device determines that the number of bits used to indicate the HARQ process ID in the DCI is less than 3, and/or the bit used to indicate the RV in the DCI is 1 bit, and The bit of the TPC command used to indicate the PUSCH in the DCI is 0 bits.
  • the communications device determines that the bit used to indicate the HARQ process ID in the DCI is 1 bit.
  • the communication device determines the DCI.
  • the communication device determines the DCI.
  • the communications device sends the DCI to the terminal device.
  • the DCI is sent to the terminal device.
  • the terminal device determines a frequency resource of the PUSCH indicated by the DCI.
  • the terminal device after the terminal device receives the RRC signaling, the terminal device receives the DCI. After receiving the DCI, the terminal device determines the frequency resource of the PUSCH indicated by the DCI.
  • the terminal device determines that the bit used to indicate the HARQ process ID in the DCI is 3 bits, and the bit used to indicate the redundancy version RV is 2 bits, where The bit indicating the TPC command of the PUSCH is 2 bits.
  • the terminal device determines that the number of bits used to indicate the HARQ process ID in the DCI is less than 3, and/or the bit used to indicate the RV in the DCI is 1 bit. And/or the bit of the TPC command used to indicate the PUSCH in the DCI is 0 bits.
  • the terminal device determines that the bit used to indicate the HARQ process ID in the DCI is 1 bit.
  • the specific implementation manners of the 801, 803, 804, 806, 808, and 809 are the same as the specific implementation manners of 201 to 208.
  • the DCI design differs when the frequency resource of the PUSCH indicated by the DCI is the first type of resource and the frequency resource of the PUSCH indicated by the DCI is the second type of resource. Therefore, by implementing the implementation manner, the RRC signaling is sent to the terminal device before the DCI is sent, so that the terminal device determines that the frequency resource of the PUSCH indicated by the DCI is the first type of resource or the second type of resource, so that the terminal device can be accurate.
  • the information indicated by the DCI is parsed. Since DCI does not support resource blocks indicating a frequency range of 1.4 MHz, resource blocks with a frequency range of 5 MHz, and subcarriers with a number less than 12, it is advantageous to save DCI bits.
  • the RRC signaling may be an enabling signaling (such as subPRBEnabled signaling) for resource allocation with a minimum subcarrier, that is, an enabling signaling of resource allocation of less than 12 subcarriers.
  • enabling signaling such as subPRBEnabled signaling
  • the DCI is the same as the DCI of the format shown in Table 1 of 6-0A. That is, the DCI is included in the DCI for indicating resource block allocation.
  • the bits are used to indicate 3 bits of the HARQ process number, which are used to indicate 2 bits of the RV, and are used to indicate 2 bits of the TPC command of the PUSCH.
  • the bits for indicating resource block allocation indicate the allocated resource blocks in the same manner as the bits in the format 6-0A for indicating resource block allocation.
  • the DCI further includes a bit for resource allocation, where the bit for resource allocation includes a narrowband indication bit and is used for a narrowband resource.
  • the allocated bits are used to indicate the narrow band where the frequency resource of the PUSCH is located.
  • the value of the bit resource allocation in the narrowband is the fourth value, indicating the PRB where the frequency resource of the PUSCH is located in the narrowband where the frequency resource of the PUSCH is located, and the subcarrier included in the frequency resource of the PUSCH in the PRB, the subcarrier of the subcarrier The number is less than 12.
  • the specific implementation manner of determining, by the terminal device, the frequency resource of the PUSCH indicated by the DCI may be: determining a narrowband where the frequency resource of the PUSCH indicated by the narrowband indication bit is located; and determining a value of the resource for resource allocation in the narrowband is a third value And determining, by the third value, the resource block included in the frequency resource of the PUSCH in the narrowband where the frequency resource of the PUSCH is located; and determining the fourth value when the value of the bit used for resource allocation in the narrowband is the fourth value And indicating, in a narrowband where the frequency resource of the PUSCH is located, a PRB in which the frequency resource of the PUSCH is located, and a subcarrier included in a frequency resource of the PUSCH in the PRB, where the number of the subcarriers is less than 12.
  • the third value and the fourth value are not the same.
  • the DCI indicates the frequency resource of the PUSCH by the bit used for resource allocation. If the RRC signaling indicates that the DCI is used to allocate resources of the second category, the DCI includes bits for resource allocation, and different values of bits for resource allocation respectively indicate resource block resources within 1.4 MHz allocated by the DCI. And allocated resources of less than 12 subcarriers.
  • the communication device determines the value of the bit for resource allocation based on whether the resource block resource within 1.4 MHz or the resource of less than 12 subcarriers is allocated.
  • the terminal device determines the frequency resource of the allocated PUSCH according to the value of all the bits used for resource allocation.
  • the terminal device cannot determine the frequency resource of the allocated PUSCH according to the value of the partial bit in the bit used for resource allocation.
  • the DCI can accurately indicate the frequency resource of the PUSCH, and the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI. And indicating, by using different values of the same bit in the DCI, the allocated resource block or subcarrier, and jointly indicating the PRB where the frequency resource of the PUSCH in the narrowband where the frequency resource of the PUSCH is located and the frequency of the PUSCH in the PRB
  • the subcarriers included in the resource are beneficial for saving DCI bits.
  • the frequency resource included in the PUSCH is one of three subcarriers and six subcarriers, and the bit used for resource allocation in the narrowband is 6 bits; or the subcarriers included in the frequency resource of the PUSCH.
  • the bit for narrowband in-band resource allocation is 7 bits for one of 3 subcarriers, 6 subcarriers, and 2 consecutive subcarriers of 3 subcarriers.
  • the number of effective state states of the bits used for resource allocation in the narrowband is 6S, that is, the number of allocation modes of a PRB allocated in the narrowband is 6*.
  • the number of allocation modes S of subcarriers is allocated in the PRB.
  • the bit allocated in the narrowband resource is equal to the number of allocation modes of the resource block allocated in the narrowband by the uplink resource allocation type 0, that is, 21.
  • Upstream resource allocation type 0 is used to allocate consecutive resource blocks.
  • the number of allocation modes of resource blocks allocated in the narrowband by the uplink resource allocation type 0 the number of allocation modes of allocating 1 resource block in the narrow band 6 + the number of allocation modes of distributing 2 consecutive resource blocks in the narrow band 5 + in the narrow band Number of allocation modes for allocating 3 consecutive resource blocks 4 + Number of allocation modes for allocating 4 consecutive resource blocks within a narrow band 3 + Number of allocation modes for allocating 5 consecutive resource blocks within a narrow band 2+ Allocating within a narrow band
  • the number of allocations of six consecutive resource blocks is 1, so there are 21 types.
  • the frequency resource included in the PUSCH includes one of three subcarriers and six subcarriers
  • S is equal to six.
  • the allocation method of the subcarriers included in the frequency resource for allocating the PUSCH in the PRB is as shown in Table 2.
  • S is equal to 6, Equal to 6. Therefore, when the frequency resource included in the PUSCH is one of 3 subcarriers and 6 subcarriers, the bit used for resource allocation in the narrowband is 6 bits.
  • the frequency resource included in the PUSCH includes one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers
  • S is equal to 10.
  • the allocation method of the subcarriers included in the frequency resource for allocating the PUSCH in the PRB is as shown in Table 3.
  • S is equal to 10
  • the allocation of two consecutive subcarriers of the three subcarriers means that the terminal device sends uplink data on the first two or the last two subcarriers of the allocated three subcarriers, and the corresponding communication device is in the three subcarriers.
  • the uplink data is received on the first two or the last two subcarriers.
  • the first two subcarriers or the last two subcarriers of the allocated three subcarriers may be fixed, determined according to the cell ID, or notified by higher layer signaling.
  • the frequency resource included in the PUSCH is one of 3 subcarriers and 6 subcarriers
  • 6 bits are used to indicate intra-narrowband resource allocation, which is advantageous for saving DCI bits.
  • the frequency resource included in the PUSCH includes one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers
  • 7 bits are used to indicate resource allocation in the narrowband, which is advantageous for saving DCI.
  • the subcarrier included in the frequency resource indicating the PUSCH is one of 3 subcarriers, 6 subcarriers, and 2 consecutive subcarriers of the 3 subcarriers, so that the terminal device does not need to be according to the information for indicating the modulation mode.
  • the bit determines the modulation mode, and then determines whether the two consecutive subcarriers of the three subcarriers transmit uplink data or the uplink data of the three subcarriers according to the modulation scheme. .
  • the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.
  • the fourth value represents a decimal number less than 6S. If the decimal number of the bit representation in the narrowband resource allocation in the DCI is Y, that is, Y ⁇ 6S, the terminal device determines the PUSCH in the narrowband where the frequency resource of the PUSCH is indicated by the bit used for resource allocation in the narrowband.
  • the PRB in which the frequency resource is located and the subcarrier included in the frequency resource of the PUSCH in the PRB, the number of the subcarriers is less than 12.
  • the narrowband of the frequency resource of the PUSCH indicated by the bit for the intra-narrowband resource allocation is the narrowband indicated by the narrowband indication bit, and the PRB index of the PRB of the PUSCH indicated by the bit for the intra-narrowband resource allocation is in the narrowband.
  • the third value represents a decimal number greater than or equal to 6S. That is, when Y is greater than or equal to 6S, the terminal device determines the resource block included in the frequency resource of the PUSCH in the narrowband where the frequency resource of the PUSCH is indicated by the bit used for resource allocation in the narrowband.
  • the resource indication value (RIV) of the resource block indicated by the bit resource indicating the resource allocation of the narrow band indicates the Y-6S.
  • the RIV value corresponds to the starting resource block RB START and the number of consecutive resource blocks L CRBs included in the frequency resource of the PUSCH. RIV is defined in the same way as the prior art. If in the prior art then otherwise among them Fixed at 6.
  • the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • the fourth value represents a decimal number greater than or equal to 21. That is, when Y is greater than or equal to 21, the terminal device determines that the PRB in which the frequency resource of the PUSCH in the narrowband where the frequency resource of the PUSCH is located indicated by the bit used for resource allocation in the narrowband and the frequency resource of the PUSCH in the PRB are included. Subcarrier, the number of subcarriers is less than 12.
  • the narrowband of the frequency resource of the PUSCH indicated by the bit for the intra-narrowband resource allocation is the narrowband indicated by the narrowband indication bit, and the PRB index of the PRB of the PUSCH indicated by the bit for the intra-narrowband resource allocation is in the narrowband.
  • the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • the determining, by the terminal device, the allocated resources according to the bits used for the resource allocation in the narrowband may also be in other manners, which is not limited in the embodiment of the present application.
  • the DCI further includes a bit for resource allocation, and when the value of the bit used for resource allocation is the fifth value, indicating the PUSCH. a narrowband in which the frequency resource is located and a resource block included in the frequency resource of the PUSCH in the narrowband; when the value of the bit used for resource allocation is the sixth value, indicating the PRB of the frequency resource of the PUSCH in the system bandwidth and the PRB in the PRB.
  • the specific implementation manner of determining, by the terminal device, the frequency resource of the PUSCH indicated by the DCI is: when the value of the bit used for resource allocation is the fifth value, determining a narrowband where the frequency resource of the PUSCH indicated by the fifth value is located The resource block included in the frequency resource of the PUSCH in the narrowband; when the value of the bit used for resource allocation is the sixth value, determining the PRB where the frequency resource of the PUSCH is located in the system bandwidth indicated by the sixth value and the PUSCH in the PRB
  • the frequency resource includes subcarriers, and the number of the subcarriers is less than 12.
  • the DCI indicates the frequency resource of the PUSCH by the bit used for resource allocation. If the RRC signaling indicates that the DCI is used to allocate resources of the second category, the DCI includes bits for resource allocation, and different values of bits for resource allocation respectively indicate resource block resources within 1.4 MHz allocated by the DCI. And allocated resources of less than 12 subcarriers.
  • the communication device determines the value of the bit for resource allocation based on whether the resource block resource within 1.4 MHz or the resource of less than 12 subcarriers is allocated.
  • the terminal device determines the frequency resource of the allocated PUSCH according to the value of all the bits used for resource allocation.
  • the terminal device cannot determine the frequency resource of the allocated PUSCH according to the value of the partial bit in the bit used for resource allocation.
  • the DCI can accurately indicate the frequency resource of the PUSCH, and the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI. And indicating the allocated resource block or subcarrier by different values of the same bit in the DCI, and jointly indicating the PRB where the frequency resource of the PUSCH is located in the system bandwidth and the subcarrier included in the frequency resource of the PUSCH in the PRB, which is beneficial to Save DCI bits.
  • the sub-carriers included in the frequency resource of the indicated PUSCH may be in a narrow band or may be outside the narrow band, which increases the flexibility of resource allocation.
  • the bits used for resource allocation include Bits,
  • the frequency resources included in the PUSCH include one of 3 subcarriers and 6 subcarriers, and S is equal to 6; or, the subcarriers included in the frequency resource of the PUSCH are 3 subcarriers, 6 subcarriers, and one of 2 consecutive subcarriers of 3 subcarriers, S is equal to 10.
  • This S is the number S of allocation modes for allocating subcarriers within one PRB.
  • the PRB in which the allocated subcarrier is located is any PRB of the system bandwidth.
  • the PRBs within the system bandwidth are numbered on the frequency, ie the PRB index in the system bandwidth.
  • the number of valid value states of the bits used for resource allocation the number of allocation methods of one PRB within the allocated system bandwidth Number of allocation methods for allocating subcarriers within one PRB
  • the number of valid value states of the bits used for resource allocation when the resource allocated bits indicate the allocation of resource blocks within 1.4 MHz Therefore, the number of valid value states of the resource allocation bits the number of valid value states when the allocation is less than 12 subcarriers Number of valid value states when allocating resource blocks within 1.4MHz Therefore, the number of bits used for resource allocation bits can be
  • the frequency resource included in the PUSCH is one of three subcarriers and six subcarriers
  • the allocation method of the subcarriers included in the frequency resource allocated to the PUSCH in the PRB is as shown in Table 2, Equal to 6.
  • the frequency resource of the PUSCH includes three subcarriers, six subcarriers, and one of two consecutive subcarriers of three subcarriers, and allocates a frequency resource of the PUSCH in the PRB.
  • the subcarriers included are allocated as shown in Table 3, and S is equal to 10.
  • the frequency component included in the frequency resource of the PUSCH is one of three subcarriers and six subcarriers
  • the bits are used for resource allocation, which helps to save DCI bits.
  • the frequency resource included in the PUSCH includes three subcarriers, six subcarriers, and one of two consecutive subcarriers of three subcarriers.
  • the bits are used for resource allocation, which helps to save DCI bits.
  • the subcarrier included in the frequency resource indicating the PUSCH is one of 3 subcarriers, 6 subcarriers, and 2 consecutive subcarriers of the 3 subcarriers, so that the terminal device does not need to be according to the information for indicating the modulation mode.
  • the bit determines the modulation mode, and then determines whether the two consecutive subcarriers of the three subcarriers transmit uplink data or the uplink data of the three subcarriers according to the modulation scheme.
  • the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.
  • the sixth value represents a decimal number less than DCI for resource allocation
  • the decimal number represented by bits is Y, that is, The terminal device determines the PRB in which the frequency resource of the PUSCH in the system bandwidth is indicated by the bit used for resource allocation and the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of the subcarriers is less than 12.
  • the PRB index of the PRB in which the frequency resource of the PUSCH indicated by the bit for resource allocation is located in the system bandwidth
  • the decimal value represented by the fifth value is greater than or equal to That is, Y is greater than or equal to
  • the terminal device determines a narrow band in which the frequency resource of the PUSCH indicated by the bit for resource allocation is located and a resource block included in the frequency resource of the PUSCH in the narrow band.
  • RIV is defined in the same way as the prior art.
  • the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • the decimal value represented by the fifth value is smaller than DCI for resource allocation
  • the decimal number represented by bits is Y, that is, The terminal device determines a narrow band in which the frequency resource of the PUSCH indicated by the bit for resource allocation is located and a resource block included in the frequency resource of the PUSCH in the narrow band.
  • RIV is defined in the same way as the prior art.
  • the sixth value represents a decimal number greater than or equal to That is, Y is greater than or equal to
  • the terminal device determines the PRB in which the frequency resource of the PUSCH in the system bandwidth is indicated by the bit used for resource allocation and the subcarrier included in the frequency resource of the PUSCH in the PRB, and the number of the subcarriers is less than 12.
  • the determining, by the terminal device, the allocated resources according to the bits allocated by the resource may also have other manners, which is not limited in the embodiment of the present application.
  • the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.
  • a bit for indicating a scheduling delay is further included in the DCI.
  • the terminal device determines a scheduling delay indicated by the bit indicating the scheduling delay.
  • the scheduling delay is the delay between the physical downlink control channel carrying the DCI and the PUSCH.
  • the physical downlink control channel may be an MPDCCH.
  • the bit used to indicate the scheduling delay is 2 bits.
  • the scheduling delay can be indicated by the DCI, so that the terminal device can perform related operations according to the scheduling delay.
  • a bit for indicating the number of RUs is further included in the DCI.
  • the terminal device further determines the number of RUs according to the bits used to indicate the number of RUs.
  • the bits used for resource allocation and the bits indicating the number of RUs are bits of different domains, or bits for resource allocation and bits for indicating the number of RUs are bits of different fields. That is, the resource allocation and the number of RUs are indicated by bits at different locations.
  • the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.
  • the bit in the fifth position in the DCI when the bit used for resource allocation indicates that the allocation is less than 12 subcarriers, the bit in the fifth position is a bit indicating the number of RUs or a bit scheduling delay, when used When the bit of the resource allocation indicates that a resource block within 1.4 MHz is allocated, the bit of the fifth position is at least one of a partial bit indicating a HARQ process number, a bit of a TPC command of the PUSCH, and a partial bit of the RV.
  • the number of bits of the DCI determined by the communications device is the same as the number of bits of the second DCI, or the number of bits of the DCI determined by the communications device is one more than the number of bits of the second DCI.
  • the second DCI is used to indicate the frequency resource of the PUSCH in the coverage enhancement mode A, and only supports the resource block indicating the frequency range within 1.4 MHz and the resource block whose frequency range is within 5 MHz; or the communication device determines
  • the DCI is used to cover enhanced mode A or the format is 6-0A.
  • the frequency component included in the frequency resource of the PUSCH is one of 3 subcarriers and 6 subcarriers; when the frequency resource of the PUSCH includes 3 subcarriers.
  • the terminal device may further perform the following steps: determining a modulation mode indicated by the DCI; and when the determined modulation mode is ⁇ /2 binary phase shift keying BPSK, transmitting the PUSCH in 2 consecutive subcarriers of the 3 subcarriers; When the modulation method is quadrature phase shift keying QPSK, the PUSCH is transmitted on three subcarriers.
  • the communication device may further perform the following steps: when the modulation mode indicated by the DCI is /2 binary phase shift keying BPSK, the 2 consecutive subcarriers of the 3 subcarriers receive the PUSCH; when the modulation mode indicated by the DCI is the quadrature phase When QPSK is keyed, the PUSCH is received on 3 subcarriers.
  • two consecutive subcarriers of the three subcarriers are the first two subcarriers of the three subcarriers, or the last two subcarriers may be fixed, or determined according to the cell ID, or by a high layer letter. Order notice.
  • the format of the DCI determined by the communication device may be as shown in Table 5 below. It should be noted that Table 5 does not list the padding bits that may be included in the DCI. The padding bits can all be zero. The order of the bits used to indicate each information among all the bits of the DCI may be as shown in Table 5 or different from Table 5.
  • the embodiment of the present invention may divide the function module into the device according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 9 is a communication device provided by an implementation of the present invention.
  • the communication device includes a communication module 901 and a processing module 902. among them:
  • the processing module 902 is configured to determine a frequency resource of the physical uplink shared channel PUSCH that the downlink control information DCI needs to indicate; and the processing module 902 is further configured to determine the DCI when the number of the physical resource blocks PRB included in the frequency resource of the PUSCH is greater than or equal to
  • the bit used to indicate the hybrid automatic repeat request HARQ process number is 3 bits, and the bit indicating the redundancy version RV is 2 bits, and the bit for indicating the transmit power control TPC command of the PUSCH is 2 bits; the processing module 902 When the number of subcarriers included in the frequency resource of the PUSCH is less than 12, it is determined that the number of bits used to indicate the HARQ process number in the DCI is less than 3, and/or the bit used to indicate the RV in the DCI is 1 bit, and/ Or the bit of the TPC command for indicating the PUSCH in the DCI is 0 bits; the processing module 902 is further configured to determine the DCI; and the communication module 901 is configured to send the
  • the processing module 902 can also implement other processing procedures of the communication device in the foregoing method.
  • the communication module 901 can also implement other transceiving processing procedures of the communication device in the foregoing method.
  • FIG. 10 is a communication device provided by an implementation of the present invention.
  • the communication device includes a communication module 1001 and a processing module 1002. among them:
  • the communication module 1001 is configured to receive the downlink control information DCI, and the processing module 1002 is configured to determine a frequency resource of the physical uplink shared channel PUSCH indicated by the DCI, and the processing module 1002 is further configured to use the physical resource block PRB included in the frequency resource of the PUSCH.
  • the value is greater than or equal to 1, it is determined that the bit used to indicate the hybrid automatic repeat request HARQ process ID in the DCI is 3 bits, and the bit used to indicate the redundancy version RV is 2 bits, and is used to indicate the transmit power control TPC command of the PUSCH.
  • the bit is 2 bits; the processing module 1002 is further configured to: when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, determine that the number of bits used to indicate the HARQ process number in the DCI is less than 3, and/or the DCI is used for indicating
  • the bit of the RV is 1 bit, and/or the bit of the TPC command for indicating the PUSCH in the DCI is 0 bit.
  • the processing module 1002 can also implement other processing processes of the terminal device in the foregoing method.
  • the communication module 1001 can also implement other transceiving processing procedures of the terminal device in the foregoing method.
  • FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 1100 includes a processor 1101, a memory 1102, and a communication interface 1103.
  • the processor 1101, the memory 1102, and the communication interface 1103 are connected.
  • the processor 1101 may be a central processing unit (CPU), a general purpose processor, a coprocessor, a digital signal processor (DSP), or an application-specific integrated circuit (ASIC). , field programmable gate array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof.
  • the processor 1101 can also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication interface 1103 is configured to implement communication with other network elements, such as terminal devices.
  • the processor 1101 invokes the program code stored in the memory 1102 to perform the steps performed by the communication device described in the foregoing method embodiments.
  • the principle of the problem is solved by the communication device provided in the embodiment of the present application.
  • the implementation of the device may be similar to the implementation of the method.
  • no further details are provided herein.
  • FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device 1200 includes a processor 1201, a memory 1202, and a communication interface 1203.
  • the processor 1201, the memory 1202 and the communication interface 1203 are connected.
  • the processor 1201 may be a central processing unit (CPU), a general-purpose processor, a coprocessor, a digital signal processor (DSP), or an application-specific integrated circuit (ASIC). , field programmable gate array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof.
  • the processor 1201 can also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication interface 1203 is used to implement communication with other network elements (such as the communication device shown in FIG. 11).
  • the processor 1201 invokes the program code stored in the memory 1202 to perform the steps performed by the terminal device in the foregoing method embodiment.
  • the principle of solving the problem of the communication device provided in the embodiment of the present application is similar to the principle of solving the problem in the terminal device of the method embodiment of the present application. Therefore, the implementation of each device can refer to the implementation of the method, and is not described here. Let me repeat.
  • the chip of the communication device implements the function of the communication device in the foregoing method embodiment.
  • the chip of the communication device transmits first information to other modules in the communication device, such as a radio frequency module or antenna, and receives second information from other modules in the communication device.
  • the first information is sent to the terminal device via other modules of the communication device, and the second information is sent by the terminal device to the communication device.
  • the terminal device chip implements the function of the terminal device in the foregoing method embodiment.
  • the terminal device chip receives the first information from other modules in the terminal device, such as a radio frequency module or an antenna, and sends the second information to other modules in the terminal device.
  • the first information is sent by the communication device to the terminal device, and the second information is sent to the communication device.
  • the first information and the second information herein do not specifically refer to a certain type of information, and are only used to characterize the communication mode between the chip and other modules.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in or transmitted by a computer readable storage medium.
  • the computer instructions can be from a website site, computer, server or data center to another website site by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.) Transfer from a computer, server, or data center.
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a Solid State Disk (SSD)) or the like.

Landscapes

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

Abstract

Des modes de réalisation de la présente invention concernent un procédé d'indication d'informations et un dispositif associé. Le procédé selon l'invention consiste : à déterminer une ressource de fréquence d'un PUSCH devant être indiquée par des informations de commande de liaison descendante (DCI) ; si le nombre de PRB compris dans la ressource de fréquence du PUSCH est supérieur ou égal à un, à déterminer que trois bits dans les DCI doivent être utilisés pour indiquer un identifiant de processus HARQ, deux bits doivent être utilisés pour indiquer un RV et deux bits doivent être utilisés pour indiquer une commande TPC du PUSCH ; si le nombre de sous-porteuses comprises dans la ressource de fréquence du PUSCH est inférieur à 12, à déterminer que le nombre de bits dans les DCI à utiliser pour indiquer l'identifiant de processus HARQ est inférieur à trois et/ou qu'un bit dans les DCI doit être utilisé pour indiquer le RV et/ou que 0 bit dans les DCI doit être utilisé pour indiquer la commande TPC du PUSCH ; à déterminer les DCI ; et à envoyer les DCI à un dispositif terminal. La mise en oeuvre des modes de réalisation de la présente invention permet de réduire le nombre de bits dans des DCI.
PCT/CN2018/076762 2018-02-13 2018-02-13 Procédé d'indication d'informations et dispositif associé Ceased WO2019157670A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201880086841.5A CN111602463B (zh) 2018-02-13 2018-02-13 一种信息指示方法及相关设备
PCT/CN2018/076762 WO2019157670A1 (fr) 2018-02-13 2018-02-13 Procédé d'indication d'informations et dispositif associé

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2018/076762 WO2019157670A1 (fr) 2018-02-13 2018-02-13 Procédé d'indication d'informations et dispositif associé

Publications (1)

Publication Number Publication Date
WO2019157670A1 true WO2019157670A1 (fr) 2019-08-22

Family

ID=67618941

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/076762 Ceased WO2019157670A1 (fr) 2018-02-13 2018-02-13 Procédé d'indication d'informations et dispositif associé

Country Status (2)

Country Link
CN (1) CN111602463B (fr)
WO (1) WO2019157670A1 (fr)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102934381A (zh) * 2010-06-02 2013-02-13 三星电子株式会社 无线通信系统中用于发送信道状态信息的方法和系统
CN106664517A (zh) * 2014-09-18 2017-05-10 英特尔Ip公司 支持减小的数据传输带宽的设备和方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011011566A2 (fr) * 2009-07-24 2011-01-27 Interdigital Patent Holdings, Inc. Procédé et dispositif permettant d’obtenir des informations d’index de port de signal de référence de démodulation
CN101778449B (zh) * 2010-01-08 2016-03-30 中兴通讯股份有限公司 一种下行控制信息传输方法及基站
CN102404854B (zh) * 2011-11-04 2018-04-06 中兴通讯股份有限公司 一种上行解调参考信号的资源配置方法及系统
CN103178942B (zh) * 2011-12-21 2016-08-03 华为技术有限公司 信令传输方法、基站和用户设备
CN106998245A (zh) * 2016-01-22 2017-08-01 中兴通讯股份有限公司 一种下行反馈方法及装置

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102934381A (zh) * 2010-06-02 2013-02-13 三星电子株式会社 无线通信系统中用于发送信道状态信息的方法和系统
CN106664517A (zh) * 2014-09-18 2017-05-10 英特尔Ip公司 支持减小的数据传输带宽的设备和方法

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
HUAWEI ET AL.: "Correction on the Bits of DCI Fields in 38.212", 3GPP TSG RAN WG1 AD HOC MEETING, R1-1800825, 26 January 2018 (2018-01-26), XP051385097 *
HUAWEI ET AL.: "Correction on Uplink MIMO Related DCI in 38.212", 3GPP TSG RAN WG1 NR AD HOC MEETING, R1-1800929, 26 January 2018 (2018-01-26), XP051385171 *
NTT DOCOMO INC.: "DCI Contents and Formats", 3GPP TSG RAN WG1 MEETING AH 1801, R1-1800671, 26 January 2018 (2018-01-26), XP051384993 *

Also Published As

Publication number Publication date
CN111602463A (zh) 2020-08-28
CN111602463B (zh) 2021-08-27

Similar Documents

Publication Publication Date Title
CN111586872B (zh) 基于多个下行控制信息的传输方法、设备及系统、存储介质
CN109392141B (zh) 一种调整频域资源和发送指示信息的方法、装置及系统
CN110769508B (zh) 信号传输方法、装置、终端设备、网络设备及系统
EP3592073B1 (fr) Procédé et dispositif de planification de ressources
CN111010254B (zh) 一种通信方法、通信装置、计算机存储介质
CN109842432B (zh) 跳频处理方法及设备
WO2018202163A1 (fr) Procédé et dispositif d'indication de ressource
WO2019214523A1 (fr) Appareil et procédé de communication
CN115104277A (zh) 用于无线通信中的多分量载波物理下行链路共享信道调度的方法和装置
WO2019213978A1 (fr) Procédé de transmission d'informations, dispositif terminal et dispositif de réseau
WO2022206990A1 (fr) Procédé et appareil de transmission de données
WO2020227902A1 (fr) Procédé et dispositif permettant de gérer une mémoire, et dispositif terminal
CN111656843B (zh) 一种数据传输方法及设备
CN111699710B (zh) 一种信息指示方法及相关设备
CN111602463B (zh) 一种信息指示方法及相关设备
CN115380595B (zh) 数据传输方法及相关装置
WO2019192053A1 (fr) Procédé et dispositif de traitement d'informations
CN111711993B (zh) 一种传输信息的方法和装置
CN111787613B (zh) 一种数据传输方法、装置和设备
CN113170476B (zh) 一种通信方法及装置
CN115842604A (zh) 反馈信息传输方法及相关装置
CN111699735B (zh) 一种信息指示方法及相关设备
US20250267633A1 (en) Communication method and apparatus
CN114390687B (zh) Pucch重复传输方法及相关装置
WO2019028864A1 (fr) Procédé d'allocation de ressource et appareil associé

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18906278

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18906278

Country of ref document: EP

Kind code of ref document: A1