WO2019157670A1

WO2019157670A1 - Information indicating method and related device

Info

Publication number: WO2019157670A1
Application number: PCT/CN2018/076762
Authority: WO
Inventors: 南方; 余政
Original assignee: 华为技术有限公司
Priority date: 2018-02-13
Filing date: 2018-02-13
Publication date: 2019-08-22
Also published as: CN111602463A; CN111602463B

Abstract

Embodiments of the present invention disclose an information indicating method and a related device. The method comprises: determining a frequency resource of a PUSCH needing to be indicated by downlink control information (DCI); if the number of PRBs comprised in the frequency resource of the PUSCH is greater than or equal to one, determining that three bits in the DCI are to be used to indicate a HARQ process ID, two bits are to be used to indicate an RV, and two bits are to be used to indicate a TPC command of the PUSCH; if the number of subcarriers comprised in the frequency resource of the PUSCH is less than 12, determining that the number of bits in the DCI to be used to indicate the HARQ process ID is less than three, and/or one bit in the DCI is to be used to indicate the RV, and/or 0 bits in the DCI are to be used to indicate the TPC command of the PUSCH; determining the DCI; and sending the DCI to a terminal device. Implementation of the embodiments of the present application helps reduce the number of bits in DCI.

Description

Information indicating method and related equipment

Technical field

The present invention relates to the field of communications technologies, and in particular, to an information indicating method and related devices.

Background technique

Machine type communication (MTC) 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. The interconnection of things, things and things. Currently, long term evolution (LTE) versions of Rel (release)-12, Rel-13, Rel-14, and Rel-15 can support MTC services.

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. When the subcarrier spacing is 15 kHz, one physical resource block (PRB) contains 12 subcarriers in frequency, and is 1 slot in time.

In LTE Rel-13, 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). In order to enable the MTC to support a higher data rate, in LTE Rel-14, the bandwidth that the UE performing the MTC service can support for transmitting the service data is expanded. In 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). The DCI is sent by the base station to the UE. For a BL/CE UE, the DCI is carried by a physical downlink control channel (MPDCCH) of a device type communication. In Rel-14 and its previous versions, 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.

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.

Summary of the invention

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.

In a first aspect, 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.

It can be seen that 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 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. When the number of HARQ processes supported by the transmission of the uplink data is less than 8, the maximum uplink rate that can be supported when the number of subcarriers included in the frequency resource of the PUSCH is less than 12 is still reached. Therefore, 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 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.

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. 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.

Therefore, by implementing the method described in the first aspect, it is advantageous to reduce the bit overhead of DCI when the DCI supports resource allocation indicating less than 12 subcarriers. Moreover, by implementing the method described in the first aspect, 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. 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.

Optionally, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, determining that the bit used to indicate the HARQ process ID in the DCI is 1 bit.

Optionally, 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. When 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.

Optionally, when the value of the flag bit is the second value, 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,

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.

It can be seen that by implementing this embodiment, the DCI can accurately indicate the frequency resource of the PUSCH.

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,

It can be seen that by implementing this embodiment, the DCI can accurately indicate the frequency resource of the PUSCH. And passed

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. Moreover, 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.

Bits, among them,

For the number of PRBs included in the system bandwidth, the frequency resources included in the PUSCH include one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers.

It can be seen that by implementing this embodiment, the DCI can accurately indicate the frequency resource of the PUSCH. And 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. Thus, by implementing this embodiment, the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme. And 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.

It can be seen that by implementing this embodiment, the DCI can accurately indicate the frequency resource of the PUSCH. And 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. Thus, by implementing this embodiment, the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme. And passed

Optionally, when the value of the flag bit is the second value, 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. By implementing this embodiment, the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.

Optionally, when the value of the flag bit is the second value, 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. Optionally, 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.

Optionally, when the value of the flag bit is the second value, 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.

By implementing this embodiment, it is advantageous to save the bits of the DCI by jointly indicating the number of RUs and the subcarriers included in the frequency resources of the PUSCH.

Optionally, 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.

For the number of PRBs included in the system bandwidth, 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.

By implementing this embodiment, 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.

Optionally, 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,

By implementing this embodiment, the DCI can accurately indicate 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. Moreover, 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.

Optionally, before determining the downlink control information DCI, 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.

Optionally, when 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, 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.

For the number of PRBs included in the system bandwidth, when the value of the bit used for the intra-narrowband resource allocation 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; When 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.

By implementing this embodiment, 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.

Optionally, 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.

When 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.

When 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. Bit. And 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. Thus, by implementing this embodiment, the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.

Optionally, when 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, 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.

By implementing this embodiment, 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. Moreover, 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.

Optionally, 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.

By implementing the implementation manner, when 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. And 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. Thus, by implementing this embodiment, the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.

Optionally, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, 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 π/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.

By implementing the implementation manner, it is not necessary to additionally add a bit in the DCI to indicate that the frequency resource included in the allocated PUSCH is a subcarrier that is two consecutive subcarriers of the three subcarriers, which is advantageous for saving bits for subcarrier allocation. Or the bit to which the first field is mapped, or the bit used for resource allocation.

Optionally, when the bit used for resource allocation indicates that the allocation is less than 12 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. By implementing this embodiment, the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.

Optionally, when the bit used for resource allocation indicates that the allocation is less than 12 subcarriers, 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. Optionally, 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.

Optionally, except for the padding bit, 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. Bit. 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.

Optionally, 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.

In a second aspect, 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 When 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, and 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.

Optionally, 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. When the value of the flag bit is the first value, determining the frequency resource of the PUSCH is included. The number of physical resource block PRBs is greater than or equal to 1; when the value of the flag bit is the second value, it is determined that the number of subcarriers included in the frequency resource of the PUSCH is less than 12.

Optionally, when the value of the flag bit is the second value, the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is

Bits, among them,

For the number of the PRBs included in the system bandwidth, the frequency resources included in the PUSCH are one of three subcarriers and six subcarriers, and 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.

Optionally, the frequency resource included in the frequency resource of the PUSCH is one of three subcarriers and six subcarriers, and 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 that the PRB of the frequency resource of the PUSCH indicated by the 6 bits is in the narrowband and the PRB index is

The terminal device determines the parameter I _SC =X mod6 of the subcarrier included in the frequency resource indicated by the 6 bits indicating the frequency resource of the PUSCH in the PRB. Optionally, 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.

It can be seen that by implementing the implementation manner, 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.

For the number of the PRBs included in the system bandwidth, the frequency resources included in the PUSCH are one of three subcarriers and six subcarriers, and 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.

Optionally, 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 that the PRB index of the PRB in which the frequency resource of the PUSCH indicated by the bit for the subcarrier allocation is located in the system bandwidth is

The terminal device determines the parameter I _SC =X mod6 of the subcarrier included in the frequency resource of the PUSCH in the PRB indicating the bit indication for the subcarrier allocation. Optionally, 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.

Bits, of which

For the number of PRBs included in the system bandwidth, 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.

Optionally, 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 determines the parameter I _SC =X mod10 of the subcarrier included in the frequency resource of the PUSCH indicated by the 6 bits. Optionally, 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.

For the number of PRBs included in the system bandwidth, 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.

Optionally, the bits used for subcarrier allocation are

The terminal device determines the parameter I _SC =X mod10 of the subcarrier included in the frequency resource of the PUSCH in the PRB indicating the bit indication for the subcarrier allocation. Optionally, 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.

It can be seen that by implementing the implementation manner, 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.

Optionally, when the value of the flag bit is the second value, the DCI further includes a bit for indicating the number of resource units (RUs). 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. By implementing this embodiment, the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.

Optionally, when the value of the flag bit is the second value, the DCI further includes a bit for indicating a scheduling delay. After receiving the DCI, 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. Optionally, 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.

Optionally, when the value of the flag bit is the second value, 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.

Optionally, 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.

For the number of PRBs included in the system bandwidth, 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.

Optionally, 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 parameter I _SC =X mod6 of the subcarrier included in the frequency resource indicated by the 7 bits in the PRB in the PRB. The terminal device determines the number of RUs indicated by the 7 bits

Optionally, 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.

By implementing this embodiment, 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.

Optionally, the first field is mapped to the bit

For the number of PRBs included in the system bandwidth, 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 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.

Optionally, 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. Optionally, 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.

By implementing this embodiment, 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.

Optionally, before receiving the downlink control information DCI, 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.

Optionally, when 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, 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

For determining the number of PRBs included in the system bandwidth, 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 When 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.

Optionally, 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 bit indication for the intra-narrowband resource allocation indicates the parameter I _SC = Y mod S of the sub-carrier included in the frequency resource of the PUSCH in the PRB.

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 narrowband in which the frequency resource of the PUSCH indicated by the bit for narrowband in-band resource allocation is narrowband indicated by the narrowband indication bit. 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. Or, 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.

By implementing this embodiment, the terminal device can accurately determine the frequency resource of the PUSCH indicated by the DCI.

Optionally, the third value represents a decimal number less than 21. If the decimal number of the bit representation in the narrowband resource allocation in the DCI is Y, that is, Y<21, 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. A resource block included in a frequency resource. The narrowband in which the frequency resource of the PUSCH indicated by the bit for narrowband in-band resource allocation is narrowband indicated by the narrowband indication bit. The bit indicating the resource allocation in the narrowband indicates the RIV=Y of the resource block included in the frequency resource representing the PUSCH. RIV is defined in the same way as the prior art.

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 bit indication for the intra-narrowband resource allocation indicates the parameter I _SC = Z mod S, Z = Y-21 of the sub-carrier included in the frequency resource of the PUSCH in the PRB.

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.

Optionally, 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, and determining the frequency resource of the physical uplink shared channel PUSCH indicated by the DCI includes: used for resource allocation. When 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.

Optionally, the bits used for resource allocation include

Bits,

Optionally, 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 bit indication for resource allocation indicates a parameter I _SC =Y mod S of the subcarrier included in the frequency resource of the PUSCH in the PRB.

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. The narrowband index of the narrowband where the frequency resource of the PUSCH indicated by the bit for resource allocation is located

The bit indication for resource allocation indicates RIV=Z mod 21 of the 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.

Optionally, 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 bit indication for resource allocation indicates that RIV=Y mod 21 of the 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 bit indication for resource allocation indicates a parameter Isc=Z mod S of the subcarrier included in the frequency resource of the PUSCH in the PRB.

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.

Optionally, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the frequency resource included in the frequency resource of the PUSCH indicated by the DCI is one of three subcarriers and six subcarriers, and when determining the frequency resource of the PUSCH, When the three subcarriers are used, the method further includes: determining a modulation mode indicated by the DCI; and when the determined modulation mode is π/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.

Optionally, when the bit used for resource allocation indicates that the allocation is less than 12 subcarriers, a bit for indicating the number of RUs is further included in the DCI. 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. By implementing this embodiment, the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.

Optionally, when the bit used for resource allocation indicates that the allocation is less than 12 subcarriers, a bit for indicating a scheduling delay is further included in the DCI. After receiving the DIC, 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. Optionally, 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 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. The beneficial effects corresponding to the method described in the aspects and the optional implementation of the first aspect are not described herein.

In a third aspect, a communication device is provided, 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. Based on the same inventive concept, the principle and the beneficial effects of the communication device to solve the problem can be referred to the principles and beneficial effects of the foregoing first aspect or the possible implementation manner of the first aspect, and the repeated description is not repeated.

In a fourth aspect, a communication device is provided, 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. Based on the same inventive concept, the principle and the beneficial effects of the communication device to solve the problem can be referred to the principles and beneficial effects of the foregoing second aspect or the possible implementation manner of the second aspect, and the repeated description is not repeated.

In a fifth aspect, a communication device is provided, the 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. Wherein 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 For the beneficial effects, reference may be made to the principles and advantages of the first aspect or the possible implementations of the first aspect, and the repeated description is not repeated.

In a sixth aspect, a communication device is provided, the 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. Wherein 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 For the beneficial effects, reference may be made to the principles and advantages of the foregoing second aspect or the possible implementation of the second aspect, and the repeated description is not repeated.

In a seventh aspect, a computer program product is provided, 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 .

In an eighth 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.

In a ninth 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.

In a tenth aspect, a computer readable storage medium is provided, the 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.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

1 is a schematic structural diagram of a communication system according to an embodiment of the present invention;

2 is a schematic flowchart of an information indication method according to an embodiment of the present invention;

3 is a schematic structural diagram of a DCI format according to an embodiment of the present invention;

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.

Detailed ways

The technical solutions of the embodiments of the present invention will be described below in conjunction with the accompanying drawings.

For the terminal equipment in the coverage enhancement mode A, 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.

Table 1: Existing DCI format 6-0A

As shown in Table 1, in the existing DCI format 6-0A, 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. 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. Among them, one resource block contains 12 subcarriers in frequency. 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.

To this end, 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.

In order to better understand the embodiments of the present application, a communication system to which the embodiments of the present application are applicable will be described below.

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.

Optionally, the communication device involved in the embodiment of the present application is an entity on the network side for transmitting or receiving a signal. For example, 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).

Alternatively, 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. For example, 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. Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the Internet of Things, virtual reality devices, terminal devices in future 5G networks, or future evolved public land mobile networks A terminal device in a (public land mobile network, PLMN), a UE that performs MTC service, a BL UE, or a CE UE.

For example, FIG. 1 is a schematic diagram of a communication system provided by an embodiment of the present application. As shown in FIG. 1, the communication system may include seven communication devices, which are a base station and UE1 to UE6, respectively. In the communication system, 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.

For example, as shown in FIG. 1, 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.

The information indicating method and related equipment provided by the present application are described in detail below.

Referring to FIG. 2, 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:

201. 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. For example, as shown in FIG. 1, when the communication device is a base station, the terminal device is any one of UE1 to UE6. When the communication device is the UE 5, 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.

202. When the number of PRBs included in the frequency resource of the PUSCH is greater than or equal to 1, 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.

In this embodiment of the present application, after the communication device determines the frequency resource of the PUSCH that the DCI needs to indicate, 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.

203. When the number of subcarriers included in the frequency resource of the PUSCH is less than 12, 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 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 bit, or the bit to which the field in the DCI is mapped.

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.

Optionally, in step 203, the bit used to indicate the HARQ process ID is 1 bit.

204. The communication device determines the DCI.

In the embodiment of the present application, after the communication device performs the 202 or 203 part, the communication device determines the DCI.

205. The communication device sends the DCI to the terminal device.

In this embodiment of the present application, after the communication device determines the DCI, the DCI is sent to the terminal device.

206. The terminal device determines a frequency resource of the PUSCH indicated by the DCI.

In this embodiment of the present application, after receiving the DCI, the terminal device determines the frequency resource of the PUSCH indicated by the DCI.

207. When the number of physical resource blocks PRB included in the frequency resource of the PUSCH is greater than or equal to 1, 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.

208. When the number of subcarriers included in the frequency resource of the PUSCH is less than 12, 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.

Optionally, in step 208, the bit used to indicate the HARQ process ID is 1 bit.

In the embodiment of the present application, after receiving the downlink control information DCI, the terminal device 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.

It can be seen that, in the embodiment of the present application, after the communication device determines the frequency resource of the PUSCH that needs to be allocated to the terminal device, the communication device determines different DCIs according to different resource allocation situations. When 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, and the DCI further includes a bit for indicating the HARQ process number, and a bit for indicating the RV. And a bit for indicating a TPC command of the PUSCH. The bit for indicating the HARQ process number is 3 bits, the bit for indicating the RV is 2 bits, and the bit for indicating the TPC command of the PUSCH is 2 bits. 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.

When the number of subcarriers included in the frequency resource of the allocated PUSCH is less than 12, 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. After receiving the DCI, 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. And/or, after receiving the DCI, 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. Optionally, the bit used to indicate the HARQ process ID is 1 bit. When the bit included in the DCI indicating the HARQ process number is 1 bit, the HARQ process number indicating the bit indication indicating the HARQ process number may be 0 or 1. When the bit included in the DCI for indicating the RV is 1 bit, 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.

It can be seen that 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 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. When the number of HARQ processes supported by the transmission of the uplink data is less than 8, the maximum uplink rate that can be supported when the number of subcarriers included in the frequency resource of the PUSCH is less than 12 is still reached. Therefore, 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. 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. 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. 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. Therefore, by implementing the method described in FIG. 2, it is advantageous to reduce the bit overhead of DCI when the DCI supports resource allocation indicating less than 12 subcarriers. Moreover, by implementing the method described in FIG. 2, 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.

Optionally, 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.

Correspondingly, when the value of the flag bit is the first value, 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. Optionally, the flag bit may be 1 bit in the DCI.

Optionally, when the value of the flag bit is the first value, 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.

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,

For the number of PRBs included in the system bandwidth, the frequency resources of the PUSCH include subcarriers of one of three subcarriers and six subcarriers.

Correspondingly, 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.

That is, in this embodiment, the DCI indicates the frequency resource of the allocated PUSCH by the bit for subcarrier allocation. In this embodiment, 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. Of course, there are other numbering methods for the six types of distribution modes, which are not limited in the embodiment of the present application.

Table 2

I _SC I _SC	PRB中的子载波索引Subcarrier index in PRB
00	0,1,20,1,2
11	3,4,53,4,5
22	6,7,86,7,8
33	9,10,119,10,11
44	0,1,2,3,4,50,1,2,3,4,5
55	6,7,8,9,10,116,7,8,9,10,11

It can be seen that by implementing the implementation manner, 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.

Optionally, out of the 6 bits of the bits used for subcarrier allocation, 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.

For example, 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.

It can be seen that by implementing this embodiment, it is possible to accurately indicate the PRB in which the frequency resource of the PUSCH is located in the narrow band and the subcarrier included in the frequency resource of the PUSCH in the PRB.

Optionally, 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.

For example, when the 6 bits of the bits used for the subcarrier allocation are 000001, 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. .

Since there are six allocation methods for allocating one PRB in a narrow band. There are a total of six allocation modes for allocating 3 subcarriers or 6 subcarriers within one PRB, as shown in Table 2 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 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 number of allocation modes of intra-subcarriers is 6=36. Therefore, when 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.

It can be seen that by implementing the embodiment, 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.

Optionally, 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 that the PRB of the frequency resource of the PUSCH indicated by the 6 bits is in the narrowband and the PRB index is

Correspondingly, 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.

That is, in this embodiment, the DCI indicates the frequency resource of the allocated PUSCH by the bit for subcarrier allocation. In this embodiment, 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.

It can be seen that by implementing the implementation manner, 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 passed

Optionally, 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 value range of the PRB index in the system bandwidth is

The terminal device determines that the PRB index of the PRB in which the frequency resource of the PUSCH indicated by the bit for the subcarrier allocation is located in the system bandwidth is

Bits, among them,

For the number of PRBs included in the system bandwidth, the allocated frequency resources of the PUSCH include one of three subcarriers, six subcarriers, and two consecutive subcarriers of three subcarriers.

Correspondingly, 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.

That is, in this embodiment, the DCI indicates the frequency resource of the allocated PUSCH by the bit for subcarrier allocation. In this embodiment, 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. As shown in Table 3 below, 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.

table 3

Since there are six allocation methods for allocating one PRB in a narrow band. There are a total of 10 allocation modes for allocating 3 subcarriers, 6 subcarriers, or 2 consecutive subcarriers among 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 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 number of allocation modes of intra-subcarriers is 10=60. Therefore, when 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 PRB in which the frequency resource is located and the subcarrier included in the frequency resource of the PUSCH in the PRB.

It can be seen that by implementing the implementation manner, 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 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. Thus, by implementing this embodiment, the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme. And 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.

Correspondingly, 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.

That is, in this embodiment, the DCI indicates the frequency resource of the allocated PUSCH by the bit for subcarrier allocation. In this embodiment, 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. One.

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

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, six subcarriers, and two consecutive subcarriers of three subcarriers, it is required to be used.

It can be seen that by implementing the implementation manner, 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 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. Thus, by implementing this embodiment, the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme. And passed

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. Moreover, 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.

Optionally, the bits used for subcarrier allocation are

Optionally, 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. When the cell identifier mod2=0, determining that two consecutive subcarriers of the three subcarriers are subcarrier 1 and subcarrier 2; when the cell identifier mod2=1, determining that two of the three subcarriers are consecutive The subcarriers are subcarrier 2 and subcarrier 3.

Optionally, for 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.

For example, the first value of the flag bit is 1 and the second value of the flag bit is 0. As shown in FIG. 3, when the flag bit in the DCI is 0, the bit at the first position is a bit for subcarrier allocation. When the flag bit in the DCI is 1, 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.

Optionally, when the value of the flag bit is the second value, the DCI further includes a bit for indicating the number of resource units (RUs). Correspondingly, 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. For example, 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.

By implementing this embodiment, the number of RUs can be indicated by DCI, so that the terminal device can perform related operations according to the number of RUs.

Optionally, 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.

Optionally, for 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. When the value of the flag bit is the first value, 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.

For example, the first value of the flag bit is 1 and the second value of the flag bit is 0. As shown in FIG. 4, when the bit for indicating the number of RUs is 2 bits, when the flag bit in the DCI is 0, the bit at the second position is a bit indicating the number of RUs. When the flag bit in the DCI is 1, the bit of the second position is a partial bit for indicating the HARQ process number.

For another example, as shown in FIG. 5, when the bit for indicating the number of RUs is 2 bits, when the flag bit in the DCI is 0, the bit at the second position is a bit indicating the number of RUs. When the flag bit in the DCI is 1, the bit of the second position is a bit for indicating the TPC command of the PUSCH.

For example, as shown in FIG. 6, 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. When the flag bit in the DCI is 1, 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.

Optionally, when the value of the flag bit is the second value, the DCI further includes a bit for indicating a scheduling delay. Correspondingly, after receiving the DCI, 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. Optionally, 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.

Optionally, for the bit in the third position in the DCI, 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. When the value of the flag bit is the first value, 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.

For example, as shown in FIG. 7, 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.

Optionally, when the value of the flag bit is the second value, 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. Correspondingly, 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.

That is, in this embodiment, 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.

For example, when the bit value of the first field is 0000001, the allocated subcarriers are subcarrier 0, subcarrier 1 and subcarrier 2, indicating that the number of RUs is 2. When the bit value is 0000011, the allocated subcarriers are subcarrier 3, subcarrier 4, and subcarrier 5, indicating that the number of RUs is 2. When the bit value is 0000010, the allocated subcarriers are subcarrier 3, subcarrier 4, and subcarrier 5, indicating that the number of RUs is 3.

Optionally, the first field is mapped to the bit

Bits. among them,

For the number of PRBs included in the system bandwidth, 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. Correspondingly, 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.

In this embodiment, that is, 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.

In this embodiment, 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 number of allocation methods for allocating subcarriers in one PRB is 6=107. Therefore, if the frequency resource of the allocated PUSCH includes one of 3 subcarriers and 6 subcarriers, and the number of RUs is one of 3 RU numbers, 7 bits are needed to jointly indicate in the narrowband. 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.

By implementing this embodiment, 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. And 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.

Optionally, in this embodiment, 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

Optionally, the first field is mapped to the bit

For the number of PRBs included in the system bandwidth, 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. Correspondingly, 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.

That is, in this embodiment, the DCI indicates the number of RUs and the frequency resources of the allocated PUSCH through the first field. In this embodiment, 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.

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.

By implementing this embodiment, 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

Optionally, the first field is mapped to the bit

Optionally, for the bit in the fourth position in the DCI, 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. When the value of the flag bit is the first value, 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.

Optionally, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, 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 π/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.

Optionally, 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.

By implementing the implementation manner, it is not necessary to additionally add a bit in the DCI to indicate that the frequency resource included in the allocated PUSCH is a subcarrier that is two consecutive subcarriers of the three subcarriers, which is advantageous for saving bits for subcarrier allocation. Or the bit to which the first field is mapped.

In summary, in the embodiment of the present application, the format of the DCI determined by the communication device may be as shown in Table 4 below.

Table 4

It should be noted that 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.

Optionally, except for the padding bit, 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. Bit. 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.

Optionally, when the parameter ce-pdsch-puschEnhancement-config for the PUSCH enhancement is not configured in the FDD and the high layer signaling, the DCI determined by the communication device is included in addition to the padding bits that are all 0s.

or

Bits. Optionally, when 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. Optionally, when the parameter ce-pdsch-puschEnhancement-config for the PUSCH enhancement is not configured in the TDD and the high layer signaling, the DCI determined by the communication device is included in addition to the padding bits that are all 0s.

or

Bits. Optionally, when the parameter ce-pdsch-puschEnhancement-config for PUSCH enhancement is configured in the TDD and the high layer signaling, the DCI determined by the communication device is included in addition to the padding bits that are all 0s.

or

Bits.

Referring to FIG. 8, 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:

801. The communications device determines a frequency resource of the PUSCH that the DCI needs to indicate.

802. The communications device sends radio resource control (RRC) signaling to the terminal device.

In this embodiment of the present application, 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. A resource block within the second type; the resource of the second type includes a resource block having a frequency range of 1.4 MHz and a subcarrier having a number less than 12.

803. When the number of PRBs included in the frequency resource of the PUSCH is greater than or equal to 1, 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.

In the embodiment of the present application, after performing 802, part 803 or 804 is performed.

804. When the number of subcarriers included in the frequency resource of the PUSCH is less than 12, 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.

Optionally, in 804, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the communications device determines that the bit used to indicate the HARQ process ID in the DCI is 1 bit.

805. The communication device determines the DCI.

In the embodiment of the present application, after the communication device performs the 803 or 804 part, the communication device determines the DCI.

806. The communications device sends the DCI to the terminal device.

807. The terminal device determines a frequency resource of the PUSCH indicated by the DCI.

In this embodiment of the present application, 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.

808. When the number of PRBs included in the frequency resource of the PUSCH is greater than or equal to 1, 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.

809. When the number of subcarriers included in the frequency resource of the PUSCH is less than 12, 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.

Optionally, in 809, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the terminal device determines that the bit used to indicate the HARQ process ID in the DCI is 1 bit.

In the embodiment of the present application, 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. For details, refer to the descriptions of 201 to 208, and details are not described herein.

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.

Optionally, 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.

Optionally, when the RRC signaling indicates that the frequency resource of the PUSCH indicated by the DCI is the first type of resource, 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.

Optionally, when 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, where the bit for resource allocation includes a narrowband indication bit and is used for a narrowband resource. The allocated bits. Wherein the narrowband indication bit includes

For the number of PRBs included in the system bandwidth, when the value of the bit used for the intra-narrowband resource allocation 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; When 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.

Correspondingly, 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. Among them, the third value and the fourth value are not the same.

That is, in this embodiment, 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.

By implementing this embodiment, 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.

Optionally, 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.

When the bit used for resource allocation in the narrowband indicates that less than 12 subcarriers are allocated in the narrowband, 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.

When the bit used for resource allocation in the narrowband indicates that the resource block is allocated in the narrowband, 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.

Therefore, the number of valid value states of the bits used for resource allocation in the narrowband = the number of valid state states when less than 12 subcarriers are allocated in the narrow band 6S + the number of valid state states when the resource blocks are allocated in the narrow band 21 = 6S + 21 Kind. Therefore, the number of bits of the bits used for resource allocation in the narrowband may be

The number of bits of the resource allocation bit may be

When 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. When 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.

When 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. When S is equal to 10,

Equal to 7. Therefore, when 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, the bit used for resource allocation in the narrowband is 7 bits. 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. Specifically, 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.

When 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. Bit. And 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. . Thus, by implementing this embodiment, the bits used to indicate modulation mode related information may indicate more other information related to the modulation scheme.

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 narrowband in which the frequency resource of the PUSCH indicated by the bit for narrowband in-band resource allocation is narrowband indicated by the narrowband indication bit. 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.

Optionally, when the RRC signaling indicates that the frequency resource of the PUSCH indicated by the DCI is the resource of the second type, 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 subcarrier of the frequency resource of the medium PUSCH, the number of subcarriers is less than 12.

Correspondingly, 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.

By implementing this embodiment, 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. Moreover, 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.

Optionally, 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 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.

When the bit used for resource allocation indicates that less than 12 subcarriers are allocated, 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. When the bit used for resource allocation indicates that the allocation is less than 12 subcarriers, 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

In one mode, the frequency resource included in the PUSCH is one of three subcarriers and six subcarriers, and 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.

In another mode, 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.

Optionally, the sixth value represents a decimal number less than

DCI for resource allocation

The decimal number represented by bits is Y, that is,

The decimal value represented by the fifth value is greater than or equal to

That is, Y is greater than or equal to

RIV is defined in the same way as the prior art.

Optionally, 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 sixth value represents a decimal number greater than or equal to

That is, Y is greater than or equal to

Optionally, when the bit used for resource allocation indicates that the allocation is less than 12 subcarriers, a bit for indicating a scheduling delay is further included in the DCI. Correspondingly, after receiving 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. Optionally, the bit used to indicate the scheduling delay is 2 bits.

Optionally, when the bit used for resource allocation indicates that the allocation is less than 12 subcarriers, a bit for indicating the number of RUs is further included in the DCI. Correspondingly, 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 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.

Optionally, for 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.

Optionally, when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, 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 π/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.

Optionally, 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.

By implementing this embodiment, it is not necessary to additionally add a bit in the DCI to indicate that the frequency resource included in the allocated PUSCH is a subcarrier of 2 consecutive subcarriers of the 3 subcarriers, which is advantageous for saving bits for resource allocation.

In summary, in the embodiment of the present application, 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.

table 5

The embodiment of the present invention may divide the function module into the device according to the foregoing method example. For 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.

Referring to FIG. 9, 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 DCI to the terminal device.

Optionally, 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.

The implementation principle and the beneficial effects of the various modules of the communication device described in FIG. 9 are the same as those of the foregoing method embodiments. For details, refer to the corresponding description of the foregoing method embodiments.

Please refer to FIG. 10. 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. 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 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.

Optionally, 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.

The implementation principle and the beneficial effects of the various modules of the communication device described in FIG. 10 are the same as those of the foregoing method embodiments. For details, refer to the corresponding description of the foregoing method embodiments.

Referring to FIG. 11, FIG. 11 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in FIG. 11, 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.

Based on the same inventive concept, 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. For the sake of brevity, no further details are provided herein.

Referring to FIG. 12, FIG. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in FIG. 12, 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.

Based on the same inventive concept, 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.

It can be understood that when the embodiment of the present application is applied to a chip of a communication device, 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. When the embodiment of the present application is applied to a terminal device chip, 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.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part. 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.

In the above embodiments, the descriptions of the various embodiments are different, and the parts that are not detailed in a certain embodiment can be referred to the related descriptions of other embodiments.

Finally, it should be noted that the above embodiments are only for explaining the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present application. range.

Claims

An information indicating method, the method comprising:

Determining a frequency resource of the physical uplink shared channel PUSCH that the downlink control information DCI needs to indicate;

When the number of physical resource blocks PRB included in the frequency resource of the PUSCH 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 is used to indicate the redundancy version RV. The bit is 2 bits, and the bit for indicating the transmission power control TPC command of the PUSCH 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 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 DCC used to indicate the TPC command of the PUSCH is 0 bits;

Determining the DCI;

The DCI is sent to the terminal device.
The method according to claim 1, wherein the DCI further comprises: a resource allocation that distinguishes a resource allocation with a subcarrier as a minimum unit and a resource allocation with a resource block as a minimum unit; a value of the flag bit. When the value is the first value, the number of the physical resource blocks PRB included in the frequency resource of the PUSCH is greater than or equal to 1; and when the value of the flag bit is the second value, the subcarriers included in the frequency resource of the PUSCH are included. The number is less than 12.
The method according to claim 2, wherein when the value of the flag bit is a second value, the DCI further includes a bit for subcarrier allocation, and the bit for subcarrier allocation is
Bits, among them,
a bit is used to indicate a narrowband in which the frequency resource of the PUSCH is located, 6 bits are used to indicate a PRB in which the frequency resource of the PUSCH is located in the narrowband, and a sub-frequency included in a frequency resource of the PUSCH in the PRB Carrier, said
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; or

When the value of the flag bit is the second value, the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is
a bit, configured to indicate a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of the PUSCH in the PRB,
For the number of PRBs included in the system bandwidth, the frequency resources of the PUSCH include subcarriers of one of three subcarriers and six subcarriers.
The method according to claim 2, wherein when the value of the flag bit is a second value, the DCI further includes a first field, where the first field is used to indicate the quantity and location of the resource unit RU The subcarriers included in the frequency resources of the PUSCH are described, and the number of RUs and subcarriers are indicated by the same bits in the bits to which the first field is mapped.
The method according to claim 4, wherein the bit to which the first field is mapped is
Bits, among them,
a bit is used to indicate a narrow band in which the frequency resource of the PUSCH is located, 7 bits are used to indicate a PRB in which the frequency resource of the PUSCH is located in the narrow band, and a frequency resource included in the frequency resource of the PUSCH in the PRB Carrier, and number of RUs,
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 the number of the RUs is one of 3 RU numbers; or ,

The bit to which the first field is mapped is
a bit, configured to indicate a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, a subcarrier included in a frequency resource of the PUSCH in the PRB, and an number of RUs, where
For the number of PRBs included in the system bandwidth, the frequency resources included in the PUSCH include one of three subcarriers and six subcarriers, and the number of the RUs is one of three types of RUs.
The method according to claim 1, wherein before the determining the downlink control information DCI, the method further comprises:

Transmitting, by the terminal device, 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 resource of a first type or a resource of a second type;

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 resources includes resource blocks having a frequency range of 1.4 MHz and subcarriers having a number less than 12.
The method according to claim 6, wherein when the RRC signaling indicates that the frequency resource of the PUSCH indicated by the DCI is a resource of a second type, the DCI further includes a bit for resource allocation. The bit for resource allocation includes a narrowband indication bit and a bit for narrowband inband resource allocation, wherein the narrowband indication bit includes
a bit is used to indicate a narrow band where the frequency resource of the PUSCH is located,
For the number of PRBs included in the system bandwidth,

And when the value of the bit used for resource allocation in the narrowband is a third value, indicating a resource block included in a frequency resource of the PUSCH in a narrowband where the frequency resource of the PUSCH is located;

And when the value of the bit used for resource allocation in the narrowband is a fourth value, indicating a PRB in which the frequency resource of the PUSCH is located in a narrowband where the frequency resource of the PUSCH is located, and a PUSCH in the PRB The frequency carrier includes subcarriers, and the number of the subcarriers is less than 12.
The method of claim 7 wherein:

The frequency resource included in the frequency resource of 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, six subcarriers, and one of two consecutive subcarriers of three subcarriers, and the bit for narrowband intraband resource allocation is 7 bits. .
The method according to any one of claims 1 to 7, wherein when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the frequency resource included in the PUSCH includes 3 subcarriers. And one of 6 subcarriers;

When the frequency resource of the PUSCH includes three subcarriers, the method further includes:

When the modulation mode indicated by the DCI is π/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 quadrature phase shift keying QPSK, the PUSCH is received on the three subcarriers.
An information indicating method, the method comprising:

Receiving downlink control information DCI;

Determining a frequency resource of the physical uplink shared channel PUSCH indicated by the DCI;

When the number of physical resource blocks PRB included in the frequency resource of the PUSCH 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 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;

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 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 used to indicate the TPC command of the PUSCH in the DCI is 0 bits.
The method according to claim 10, wherein the DCI further comprises: a resource allocation that distinguishes a resource allocation with a subcarrier as a minimum unit and a resource allocation with a resource block as a minimum unit, the method further comprising:

When the value of the flag bit is the first value, determining 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, it is determined that the number of subcarriers included in the frequency resource of the PUSCH is less than 12.
The method according to claim 11, wherein when the value of the flag bit is a second value, the DCI further includes a bit for subcarrier allocation, and the bit for subcarrier allocation is
Bits, among them,
a bit is used to indicate a narrowband in which the frequency resource of the PUSCH is located, 6 bits are used to indicate a PRB in which the frequency resource of the PUSCH is located in the narrowband, and a sub-frequency included in a frequency resource of the PUSCH in the PRB Carrier, said
For the number of the PRBs included in the system bandwidth, the frequency resources included in the PUSCH include one of three subcarriers and six subcarriers, and the frequency of the physical uplink shared channel PUSCH indicated by the DCI is determined. Resources include:

Determining, in the narrowband, a PRB in which the frequency resource of the PUSCH indicated by the bit for the subcarrier allocation is located, a PRB in which the frequency resource of the PUSCH is located in the narrowband, and a frequency resource of the PUSCH in the PRB, including Subcarrier

or,

When the value of the flag bit is the second value, the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is
a bit, configured to indicate a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of the PUSCH in the PRB,
For the number of the PRBs included in the system bandwidth, the frequency resources included in the PUSCH include one of three subcarriers and six subcarriers, and the frequency of the physical uplink shared channel PUSCH indicated by the DCI is determined. Resources include:

Determining, by the bit used for subcarrier allocation, a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of the PUSCH in the PRB.
The method according to claim 11, wherein when the value of the flag bit is a second value, the DCI further includes a first field, where the first field is used to indicate the quantity and location of the resource unit RU. Determining the subcarriers included in the frequency resource of the PUSCH, and the number of the RUs and the subcarriers are indicated by the same bit in the bit to which the first field is mapped, and 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 method further includes:

Determining the number of RUs indicated by the first field.
The method according to claim 13, wherein the bit to which the first field is mapped is
Bits, among them,
a bit is used to indicate a narrow band in which the frequency resource of the PUSCH is located, 7 bits are used to indicate a PRB in which the frequency resource of the PUSCH is located in the narrow band, and a frequency resource included in the frequency resource of the PUSCH in the PRB Carrier, and number of RUs,
For the number of PRBs included in the system bandwidth, the frequency resource included in the PUSCH includes one of three subcarriers and six subcarriers, and the number of the RUs is one of three types of RUs. Determining the subcarriers included in the frequency resource of the PUSCH indicated by the first field includes:

Determine the said
a narrow band in which the frequency resource of the PUSCH indicated by the bit is located;

Determining, by the 7 bits, a PRB in which the frequency resource of the PUSCH in the narrowband is located, and a subcarrier included in a frequency resource of the PUSCH in the PRB;

The determining the number of RUs indicated by the first field includes:

Determining the number of RUs indicated by the 7 bits;

or,

The bit to which the first field is mapped is
a bit, configured to indicate a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, a subcarrier included in a frequency resource of the PUSCH in the PRB, and an number of RUs, where
For the number of PRBs included in the system bandwidth, the frequency resource included in the PUSCH includes one of three subcarriers and six subcarriers, and the number of the RUs is one of three types of RUs. Determining the subcarriers included in the frequency resource of the PUSCH indicated by the first field includes:

And determining, by the bit to which the first field is mapped, a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of the PUSCH in the PRB.
The method according to claim 10, wherein before the receiving the downlink control information DCI, the method further comprises:

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 resource of a first type or a resource of a second type;

The resource of the first category includes a resource block with a frequency range of 1.4 MHz and a resource block with a frequency range of 5 MHz; the resource of the second category includes a resource block with a frequency range of 1.4 MHz and A number of subcarriers less than 12.
The method according to claim 15, wherein when the RRC signaling indicates that the frequency resource of the PUSCH indicated by the DCI is a resource of a second type, the DCI further includes a bit for resource allocation. The bit for resource allocation includes a narrowband indication bit and a bit for narrowband inband resource allocation, wherein the narrowband indication bit includes
a bit is used to indicate a narrow band where the frequency resource of the PUSCH is located,
For determining the number of PRBs included in the system bandwidth, determining the frequency resources of the physical uplink shared channel PUSCH indicated by the DCI includes:

Determining a narrow band in which the frequency resource of the PUSCH indicated by the narrowband indication bit is located;

And determining, by the third value, a resource block included in a frequency resource of the PUSCH in a narrowband where the frequency resource of the PUSCH is located, where the value of the bit used for resource allocation in the narrowband is a third value;

When the value of the bit used for resource allocation in the narrowband is the fourth value, determining the PRB where the frequency resource of the PUSCH is located in the narrowband where the frequency resource of the PUSCH is located indicated by the fourth value The frequency resource of the PUSCH in the PRB includes subcarriers, and the number of the subcarriers is less than 12.
The method of claim 16 wherein:

The frequency resource included in the frequency resource of 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, six subcarriers, and one of two consecutive subcarriers of three subcarriers, and the bit for narrowband intraband resource allocation is 7 bits. .
The method according to any one of claims 10 to 16, wherein when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the frequency resource included in the PUSCH indicated by the DCI includes a sub The carrier is one of 3 subcarriers and 6 subcarriers. When it is determined that the frequency resource of the PUSCH includes three subcarriers, the method further includes:

Determining a modulation mode of the DCI indication;

When the determined modulation mode is π/2 binary phase shift keying BPSK, transmitting the PUSCH in 2 consecutive subcarriers of the 3 subcarriers;

When the determined modulation mode is quadrature phase shift keying QPSK, the PUSCH is transmitted on the three subcarriers.
A communication device, characterized in that the communication device comprises:

a processing module, configured to determine a frequency resource of the physical uplink shared channel PUSCH that the downlink control information DCI needs to indicate;

The processing module is further configured to: when the number of physical resource blocks PRB included in the frequency resource of the PUSCH is greater than or equal to 1, determine that the bit used to indicate the hybrid automatic retransmission request HARQ process number in the DCI is 3 bits, The bit used to indicate the redundancy version RV is 2 bits, and the bit for indicating the transmission power control TPC command of the PUSCH is 2 bits;

The processing module 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 ID in the DCI is less than 3, and/or used in the DCI The bit indicating 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 is further configured to determine the DCI;

And a communication module, configured to send the DCI to the terminal device.
The communication device according to claim 19, wherein the DCI further comprises: a resource allocation that distinguishes a resource allocation with a subcarrier as a minimum unit and a resource allocation with a resource block as a minimum unit; When the value is the first value, the number of physical resource blocks PRB included in the frequency resource of the PUSCH is greater than or equal to 1; and when the value of the flag bit is the second value, the sub-frequency resource of the PUSCH is included The number of carriers is less than 12.
The communication device according to claim 20, wherein when the value of the flag bit is a second value, the DCI further includes a bit for subcarrier allocation, and the bit for subcarrier allocation for
Bits, among them,
a bit is used to indicate a narrowband in which the frequency resource of the PUSCH is located, 6 bits are used to indicate a PRB in which the frequency resource of the PUSCH is located in the narrowband, and a sub-frequency included in a frequency resource of the PUSCH in the PRB Carrier, said
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; or

When the value of the flag bit is the second value, the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is
a bit, configured to indicate a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of the PUSCH in the PRB,
For the number of PRBs included in the system bandwidth, the frequency resources of the PUSCH include subcarriers of one of three subcarriers and six subcarriers.
The communication device according to claim 20, wherein when the value of the flag bit is a second value, the DCI further includes a first field, where the first field is used to indicate the number of resource unit RUs and The frequency resources of the PUSCH include subcarriers, and the number of RUs and subcarriers are indicated by the same bit in the bits to which the first field is mapped.
The communication device according to claim 22, wherein the bit to which the first field is mapped is
Bits, among them,
a bit is used to indicate a narrow band in which the frequency resource of the PUSCH is located, 7 bits are used to indicate a PRB in which the frequency resource of the PUSCH is located in the narrow band, and a frequency resource included in the frequency resource of the PUSCH in the PRB Carrier, and number of RUs,
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 the number of the RUs is one of 3 RU numbers; or ,

The bit to which the first field is mapped is
a bit, configured to indicate a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, a subcarrier included in a frequency resource of the PUSCH in the PRB, and an number of RUs, where
For the number of PRBs included in the system bandwidth, the frequency resources included in the PUSCH include one of three subcarriers and six subcarriers, and the number of the RUs is one of three types of RUs.
The communication device according to claim 19, characterized in that

The communication module is further configured to: before the processing module determines the downlink control information DCI, send the radio resource control RRC signaling to the terminal device, where the RRC signaling is used to indicate the PUSCH indicated by the DCI. The frequency resource is a first type of resource or a 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 resources includes resource blocks having a frequency range of 1.4 MHz and subcarriers having a number less than 12.
The communication device according to claim 24, wherein when the RRC signaling indicates that the frequency resource of the PUSCH indicated by the DCI is a resource of a second type, the DCI further includes a resource allocation for resource allocation. Bits, the bits for resource allocation include narrowband indication bits and bits for resource allocation within narrowband, wherein the narrowband indication bits include
a bit is used to indicate a narrow band where the frequency resource of the PUSCH is located,
For the number of PRBs included in the system bandwidth,

And when the value of the bit used for resource allocation in the narrowband is a third value, indicating a resource block included in a frequency resource of the PUSCH in a narrowband where the frequency resource of the PUSCH is located;

And when the value of the bit used for resource allocation in the narrowband is a fourth value, indicating a PRB in which the frequency resource of the PUSCH is located in a narrowband where the frequency resource of the PUSCH is located, and a PUSCH in the PRB The frequency carrier includes subcarriers, and the number of the subcarriers is less than 12.
The communication device according to claim 25, wherein the frequency resource of the PUSCH comprises a subcarrier of one of three subcarriers and six subcarriers, and the number of bits for resource allocation in a narrowband is six. Bit

or,

The frequency resource of the PUSCH includes three subcarriers, six subcarriers, and one of two consecutive subcarriers of three subcarriers, and the bit for narrowband intraband resource allocation is 7 bits. .
The communication device according to any one of claims 19 to 25, wherein when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the frequency resource of the PUSCH includes three subcarriers. One of a carrier and six subcarriers;

When the frequency resource of the PUSCH includes 3 subcarriers, the communication module is further used to

When the modulation mode indicated by the DCI is π/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 quadrature phase shift keying QPSK, the PUSCH is received on the three subcarriers.
A communication device, characterized in that the communication device comprises:

a communication module, configured to receive downlink control information DCI;

a processing module, configured to determine a frequency resource of a physical uplink shared channel PUSCH indicated by the DCI;

The processing module is further configured to: when the number of physical resource blocks PRB included in the frequency resource of the PUSCH is greater than or equal to 1, determine that the bit used to indicate the hybrid automatic repeat request HARQ process number in the DCI is 3 bits. a bit indicating that the redundancy version RV is 2 bits, and the bit for indicating the transmission power control TPC command of the PUSCH is 2 bits;

The processing module 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 ID in the DCI is less than 3, and/or used in the DCI The bit indicating the RV is 1 bit, and/or the bit of the TPC command for indicating the PUSCH in the DCI is 0 bit.
The communication device according to claim 28, wherein the DCI further comprises: a resource allocation that distinguishes a resource allocation with a subcarrier as a minimum unit and a resource allocation with a resource block as a minimum unit,

The processing module is further configured to: when the value of the flag bit is a first value, determine that the number of physical resource blocks PRB included in the frequency resource of the PUSCH is greater than or equal to 1;

The processing module is further configured to: when the value of the flag bit is a second value, determine that the number of subcarriers included in the frequency resource of the PUSCH is less than 12.
The communication device according to claim 29, wherein when the value of the flag bit is a second value, the DCI further includes a bit for subcarrier allocation, and the bit for subcarrier allocation for
Bits, among them,
a bit is used to indicate a narrowband in which the frequency resource of the PUSCH is located, 6 bits are used to indicate a PRB in which the frequency resource of the PUSCH is located in the narrowband, and a sub-frequency included in a frequency resource of the PUSCH in the PRB Carrier, said
For the number of the PRBs included in the system bandwidth, the frequency resources of the PUSCH include one of 3 subcarriers and 6 subcarriers, and the processing module determines the physical uplink shared channel PUSCH indicated by the DCI. The way of frequency resources is specifically as follows:

Determining, in the narrowband, a PRB in which the frequency resource of the PUSCH indicated by the bit for the subcarrier allocation is located, a PRB in which the frequency resource of the PUSCH is located in the narrowband, and a frequency resource of the PUSCH in the PRB, including Subcarrier

or,

When the value of the flag bit is the second value, the DCI further includes a bit for subcarrier allocation, and the bit used for subcarrier allocation is
a bit, configured to indicate a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of the PUSCH in the PRB,
For the number of the PRBs included in the system bandwidth, the frequency resources of the PUSCH include one of 3 subcarriers and 6 subcarriers, and the processing module determines the physical uplink shared channel PUSCH indicated by the DCI. The way of frequency resources is specifically as follows:

Determining, by the bit used for subcarrier allocation, a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of the PUSCH in the PRB.
The communication device according to claim 29, wherein when the value of the flag bit is a second value, the DCI further includes a first field, where the first field is used to indicate the number of resource unit RUs and The frequency resource of the PUSCH includes a subcarrier, and the number of the RU and the subcarrier are indicated by the same bit in the bit to which the first field is mapped, and the processing module determines the physical uplink shared channel PUSCH indicated by the DCI. The manner of the frequency resource is specifically: determining a subcarrier included in the frequency resource of the PUSCH indicated by the first field;

The processing module is further configured to determine the number of RUs indicated by the first field.
The communication device according to claim 31, wherein the bit to which the first field is mapped is
Bits, among them,
a bit is used to indicate a narrow band in which the frequency resource of the PUSCH is located, 7 bits are used to indicate a PRB in which the frequency resource of the PUSCH is located in the narrow band, and a frequency resource included in the frequency resource of the PUSCH in the PRB Carrier, and number of RUs,
For the number of PRBs included in the system bandwidth, the frequency resource included in the PUSCH includes one of three subcarriers and six subcarriers, and the number of the RUs is one of three types of RUs. The manner in which the processing module determines the subcarriers included in the frequency resource of the PUSCH indicated by the first field is specifically:

Determine the said
a narrow band in which the frequency resource of the PUSCH indicated by the bit is located;

Determining, by the 7 bits, a PRB in which the frequency resource of the PUSCH in the narrowband is located, and a subcarrier included in a frequency resource of the PUSCH in the PRB;

The manner in which the processing module determines the number of RUs indicated by the first field is specifically:

Determining the number of RUs indicated by the 7 bits;

or,

The bit to which the first field is mapped is
a bit, configured to indicate a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, a subcarrier included in a frequency resource of the PUSCH in the PRB, and an number of RUs, where
For the number of PRBs included in the system bandwidth, the frequency resource included in the PUSCH includes one of three subcarriers and six subcarriers, and the number of the RUs is one of three types of RUs. The manner in which the processing module determines the subcarriers included in the frequency resource of the PUSCH indicated by the first field is specifically:

And determining, by the bit to which the first field is mapped, a PRB in which a frequency resource of the PUSCH is located in a system bandwidth, and a subcarrier included in a frequency resource of the PUSCH in the PRB.
The communication device according to claim 28, wherein before said receiving downlink control information DCI,

The communication module is further configured to receive 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 resource of a first type or a resource of a second type;

The resource of the first category includes a resource block with a frequency range of 1.4 MHz and a resource block with a frequency range of 5 MHz; the resource of the second category includes a resource block with a frequency range of 1.4 MHz and A number of subcarriers less than 12.
The communication device according to claim 33, wherein when the RRC signaling indicates that the frequency resource of the PUSCH indicated by the DCI is a resource of a second type, the DCI further includes a resource allocation for resource allocation. Bits, the bits for resource allocation include narrowband indication bits and bits for resource allocation within narrowband, wherein the narrowband indication bits include
a bit is used to indicate a narrow band where the frequency resource of the PUSCH is located,
For the number of the PRBs included in the system bandwidth, the manner in which the processing module determines the frequency resource of the physical uplink shared channel PUSCH indicated by the DCI is specifically:

Determining a narrow band in which the frequency resource of the PUSCH indicated by the narrowband indication bit is located;

And determining, by the third value, a resource block included in a frequency resource of the PUSCH in a narrowband where the frequency resource of the PUSCH is located, where the value of the bit used for resource allocation in the narrowband is a third value;

When the value of the bit used for resource allocation in the narrowband is the fourth value, determining the PRB where the frequency resource of the PUSCH is located in the narrowband where the frequency resource of the PUSCH is located indicated by the fourth value The frequency resource of the PUSCH in the PRB includes subcarriers, and the number of the subcarriers is less than 12.
The communication device according to claim 34, wherein the frequency resource of the PUSCH comprises a subcarrier of one of three subcarriers and six subcarriers, and the number of bits for resource allocation in a narrowband is six. Bit

or,

The frequency resource of the PUSCH includes three subcarriers, six subcarriers, and one of two consecutive subcarriers of three subcarriers, and the bit for narrowband intraband resource allocation is 7 bits. .
The communication device according to any one of claims 28 to 34, wherein when the number of subcarriers included in the frequency resource of the PUSCH is less than 12, the frequency resource of the PUSCH indicated by the DCI is included The subcarrier is one of 3 subcarriers and 6 subcarriers. When it is determined that the frequency resource of the PUSCH includes three subcarriers,

The processing module is further configured to determine a modulation mode of the DCI indication;

The communication module is further configured to: when the determined modulation mode is π/2 binary phase shift keying BPSK, send the PUSCH on two consecutive subcarriers of the three subcarriers;

The communication module is further configured to: when the determined modulation mode is quadrature phase shift keying QPSK, send the PUSCH on the three subcarriers.
A communication device, characterized in that the communication device comprises:

a memory for storing one or more programs;

A processor for executing a program in the memory to cause the communication device to perform the method of any one of claims 1-9.
A communication device, characterized in that the communication device comprises:

a memory for storing one or more programs;

A processor for executing a program in the memory to cause the communication device to perform the method of any one of claims 10-18.